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be9618de | 1 | /* vms.c -- Write out a VAX/VMS object file |
499ecd2f | 2 | Copyright (C) 1987, 88, 92, 94, 95, 97, 1998 Free Software Foundation, Inc. |
be9618de KR |
3 | |
4 | This file is part of GAS, the GNU Assembler. | |
5 | ||
6 | GAS is free software; you can redistribute it and/or modify | |
7 | it under the terms of the GNU General Public License as published by | |
8 | the Free Software Foundation; either version 2, or (at your option) | |
9 | any later version. | |
10 | ||
11 | GAS is distributed in the hope that it will be useful, | |
12 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | GNU General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU General Public License | |
499ecd2f ILT |
17 | along with GAS; see the file COPYING. If not, write to the Free |
18 | Software Foundation, 59 Temple Place - Suite 330, Boston, MA | |
19 | 02111-1307, USA. */ | |
be9618de KR |
20 | |
21 | /* Written by David L. Kashtan */ | |
22 | /* Modified by Eric Youngdale to write VMS debug records for program | |
23 | variables */ | |
4b18b7cd KR |
24 | |
25 | /* Want all of obj-vms.h (as obj-format.h, via targ-env.h, via as.h). */ | |
26 | #define WANT_VMS_OBJ_DEFS | |
27 | ||
be9618de | 28 | #include "as.h" |
db4e0f90 | 29 | #include "config.h" |
be9618de KR |
30 | #include "subsegs.h" |
31 | #include "obstack.h" | |
32 | ||
33 | /* What we do if there is a goof. */ | |
34 | #define error as_fatal | |
35 | ||
b9419dd2 | 36 | #ifdef VMS /* These are of no use if we are cross assembling. */ |
be9618de KR |
37 | #include <fab.h> /* Define File Access Block */ |
38 | #include <nam.h> /* Define NAM Block */ | |
39 | #include <xab.h> /* Define XAB - all different types*/ | |
8e86815b | 40 | extern int sys$open(), sys$close(), sys$asctim(); |
be9618de | 41 | #endif |
4b18b7cd | 42 | |
be9618de KR |
43 | /* |
44 | * Version string of the compiler that produced the code we are | |
45 | * assembling. (And this assembler, if we do not have compiler info.) | |
46 | */ | |
be9618de KR |
47 | char *compiler_version_string; |
48 | ||
def66e24 | 49 | extern int flag_hash_long_names; /* -+ */ |
4b18b7cd | 50 | extern int flag_one; /* -1; compatibility with gcc 1.x */ |
def66e24 DM |
51 | extern int flag_show_after_trunc; /* -H */ |
52 | extern int flag_no_hash_mixed_case; /* -h NUM */ | |
53 | ||
be9618de | 54 | /* Flag that determines how we map names. This takes several values, and |
bdc82d81 | 55 | * is set with the -h switch. A value of zero implies names should be |
be9618de KR |
56 | * upper case, and the presence of the -h switch inhibits the case hack. |
57 | * No -h switch at all sets vms_name_mapping to 0, and allows case hacking. | |
58 | * A value of 2 (set with -h2) implies names should be | |
59 | * all lower case, with no case hack. A value of 3 (set with -h3) implies | |
60 | * that case should be preserved. */ | |
61 | ||
62 | /* If the -+ switch is given, then the hash is appended to any name that is | |
4b18b7cd | 63 | * longer than 31 characters, regardless of the setting of the -h switch. |
be9618de KR |
64 | */ |
65 | ||
66 | char vms_name_mapping = 0; | |
67 | ||
be9618de KR |
68 | static symbolS *Entry_Point_Symbol = 0; /* Pointer to "_main" */ |
69 | ||
70 | /* | |
71 | * We augment the "gas" symbol structure with this | |
72 | */ | |
73 | struct VMS_Symbol | |
74 | { | |
75 | struct VMS_Symbol *Next; | |
4b18b7cd | 76 | symbolS *Symbol; |
be9618de KR |
77 | int Size; |
78 | int Psect_Index; | |
79 | int Psect_Offset; | |
80 | }; | |
4b18b7cd | 81 | |
be9618de KR |
82 | struct VMS_Symbol *VMS_Symbols = 0; |
83 | ||
84 | /* We need this to keep track of the various input files, so that we can | |
85 | * give the debugger the correct source line. | |
86 | */ | |
87 | ||
88 | struct input_file | |
89 | { | |
90 | struct input_file *next; | |
91 | struct input_file *same_file_fpnt; | |
92 | int file_number; | |
93 | int max_line; | |
94 | int min_line; | |
95 | int offset; | |
96 | char flag; | |
97 | char *name; | |
98 | symbolS *spnt; | |
99 | }; | |
100 | ||
101 | static struct input_file *file_root = (struct input_file *) NULL; | |
102 | ||
103 | ||
5700b874 KR |
104 | /* |
105 | * Styles of PSECTS (program sections) that we generate; just shorthand | |
106 | * to avoid lists of section attributes. Used by VMS_Psect_Spec(). | |
107 | */ | |
108 | enum ps_type | |
109 | { | |
110 | ps_TEXT, ps_DATA, ps_COMMON, ps_CONST | |
111 | }; | |
112 | ||
be9618de KR |
113 | /* |
114 | * This enum is used to keep track of the various types of variables that | |
115 | * may be present. | |
116 | */ | |
117 | ||
118 | enum advanced_type | |
119 | { | |
494a6c05 | 120 | BASIC, POINTER, ARRAY, ENUM, STRUCT, UNION, FUNCTION, VOID, ALIAS, UNKNOWN |
be9618de KR |
121 | }; |
122 | ||
123 | /* | |
124 | * This structure contains the information from the stabs directives, and the | |
125 | * information is filled in by VMS_typedef_parse. Everything that is needed | |
126 | * to generate the debugging record for a given symbol is present here. | |
127 | * This could be done more efficiently, using nested struct/unions, but for now | |
128 | * I am happy that it works. | |
129 | */ | |
130 | struct VMS_DBG_Symbol | |
131 | { | |
132 | struct VMS_DBG_Symbol *next; | |
54f10da0 KR |
133 | /* description of what this is */ |
134 | enum advanced_type advanced; | |
135 | /* this record is for this type */ | |
136 | int dbx_type; | |
137 | /* For advanced types this is the type referred to. I.e., the type | |
138 | a pointer points to, or the type of object that makes up an | |
139 | array. */ | |
140 | int type2; | |
141 | /* Use this type when generating a variable def */ | |
142 | int VMS_type; | |
143 | /* used for arrays - this will be present for all */ | |
144 | int index_min; | |
145 | /* entries, but will be meaningless for non-arrays */ | |
146 | int index_max; | |
147 | /* Size in bytes of the data type. For an array, this is the size | |
148 | of one element in the array */ | |
149 | int data_size; | |
150 | /* Number of the structure/union/enum - used for ref */ | |
151 | int struc_numb; | |
be9618de KR |
152 | }; |
153 | ||
b003a2d9 KR |
154 | #define SYMTYPLST_SIZE (1<<4) /* 16; must be power of two */ |
155 | #define SYMTYP_HASH(x) ((unsigned)(x) & (SYMTYPLST_SIZE-1)) | |
156 | struct VMS_DBG_Symbol *VMS_Symbol_type_list[SYMTYPLST_SIZE]; | |
be9618de KR |
157 | |
158 | /* | |
159 | * We need this structure to keep track of forward references to | |
160 | * struct/union/enum that have not been defined yet. When they are ultimately | |
161 | * defined, then we can go back and generate the TIR commands to make a back | |
162 | * reference. | |
163 | */ | |
164 | ||
165 | struct forward_ref | |
166 | { | |
167 | struct forward_ref *next; | |
168 | int dbx_type; | |
169 | int struc_numb; | |
170 | char resolved; | |
171 | }; | |
172 | ||
4b18b7cd | 173 | struct forward_ref *f_ref_root = (struct forward_ref *) NULL; |
be9618de KR |
174 | |
175 | /* | |
176 | * This routine is used to compare the names of certain types to various | |
177 | * fixed types that are known by the debugger. | |
178 | */ | |
4b18b7cd | 179 | #define type_check(X) !strcmp (symbol_name, X) |
be9618de KR |
180 | |
181 | /* | |
182 | * This variable is used to keep track of the name of the symbol we are | |
183 | * working on while we are parsing the stabs directives. | |
184 | */ | |
f2224fe2 | 185 | static const char *symbol_name; |
be9618de KR |
186 | |
187 | /* We use this counter to assign numbers to all of the structures, unions | |
188 | * and enums that we define. When we actually declare a variable to the | |
189 | * debugger, we can simply do it by number, rather than describing the | |
190 | * whole thing each time. | |
191 | */ | |
192 | ||
193 | static structure_count = 0; | |
194 | ||
494a6c05 | 195 | /* This variable is used to indicate that we are making the last attempt to |
bdc82d81 | 196 | parse the stabs, and that we should define as much as we can, and ignore |
494a6c05 KR |
197 | the rest */ |
198 | ||
199 | static int final_pass; | |
200 | ||
be9618de KR |
201 | /* This variable is used to keep track of the current structure number |
202 | * for a given variable. If this is < 0, that means that the structure | |
203 | * has not yet been defined to the debugger. This is still cool, since | |
204 | * the VMS object language has ways of fixing things up after the fact, | |
205 | * so we just make a note of this, and generate fixups at the end. | |
206 | */ | |
207 | static int struct_number; | |
208 | ||
a9918088 KR |
209 | /* This is used to distinguish between D_float and G_float for telling |
210 | the debugger about doubles. gcc outputs the same .stabs regardless | |
211 | of whether -mg is used to select alternate doubles. */ | |
212 | ||
213 | static int vax_g_doubles = 0; | |
214 | ||
d5263ab4 KR |
215 | /* Local symbol references (used to handle N_ABS symbols; gcc does not |
216 | generate those, but they're possible with hand-coded assembler input) | |
217 | are always made relative to some particular environment. If the current | |
218 | input has any such symbols, then we expect this to get incremented | |
219 | exactly once and end up having all of them be in environment #0. */ | |
220 | ||
221 | static int Current_Environment = -1; | |
222 | ||
53499500 KR |
223 | /* Every object file must specify an module name, which is also used by |
224 | traceback records. Set in Write_VMS_MHD_Records(). */ | |
225 | ||
226 | static char Module_Name[255+1]; | |
be9618de KR |
227 | |
228 | /* | |
229 | * Variable descriptors are used tell the debugger the data types of certain | |
230 | * more complicated variables (basically anything involving a structure, | |
231 | * union, enum, array or pointer). Some non-pointer variables of the | |
232 | * basic types that the debugger knows about do not require a variable | |
233 | * descriptor. | |
234 | * | |
235 | * Since it is impossible to have a variable descriptor longer than 128 | |
236 | * bytes by virtue of the way that the VMS object language is set up, | |
237 | * it makes not sense to make the arrays any longer than this, or worrying | |
238 | * about dynamic sizing of the array. | |
239 | * | |
240 | * These are the arrays and counters that we use to build a variable | |
241 | * descriptor. | |
242 | */ | |
243 | ||
244 | #define MAX_DEBUG_RECORD 128 | |
245 | static char Local[MAX_DEBUG_RECORD]; /* buffer for variable descriptor */ | |
246 | static char Asuffix[MAX_DEBUG_RECORD]; /* buffer for array descriptor */ | |
247 | static int Lpnt; /* index into Local */ | |
248 | static int Apoint; /* index into Asuffix */ | |
249 | static char overflow; /* flag to indicate we have written too much*/ | |
250 | static int total_len; /* used to calculate the total length of variable | |
251 | descriptor plus array descriptor - used for len byte*/ | |
252 | ||
253 | /* Flag if we have told user about finding global constants in the text | |
254 | section. */ | |
3c650d09 | 255 | static int gave_compiler_message = 0; |
be9618de | 256 | |
be9618de KR |
257 | |
258 | /* | |
259 | * Global data (Object records limited to 512 bytes by VAX-11 "C" runtime) | |
260 | */ | |
261 | static int VMS_Object_File_FD; /* File Descriptor for object file */ | |
262 | static char Object_Record_Buffer[512]; /* Buffer for object file records */ | |
263 | static int Object_Record_Offset;/* Offset to end of data */ | |
264 | static int Current_Object_Record_Type; /* Type of record in above */ | |
265 | ||
494a6c05 KR |
266 | /* |
267 | * Macros for moving data around. Must work on big-endian systems. | |
268 | */ | |
b9419dd2 | 269 | #ifdef VMS /* These are more efficient for VMS->VMS systems */ |
ac24997f KR |
270 | #define COPY_LONG(dest,val) ( *(long *)(dest) = (val) ) |
271 | #define COPY_SHORT(dest,val) ( *(short *)(dest) = (val) ) | |
494a6c05 | 272 | #else |
ac24997f KR |
273 | #define COPY_LONG(dest,val) md_number_to_chars ((dest), (val), 4) |
274 | #define COPY_SHORT(dest,val) md_number_to_chars ((dest), (val), 2) | |
494a6c05 | 275 | #endif |
be9618de | 276 | /* |
bdc82d81 | 277 | * Macros for placing data into the object record buffer. |
be9618de | 278 | */ |
ac24997f KR |
279 | #define PUT_LONG(val) \ |
280 | ( COPY_LONG (&Object_Record_Buffer[Object_Record_Offset], (val)), \ | |
281 | Object_Record_Offset += 4 ) | |
be9618de | 282 | |
ac24997f KR |
283 | #define PUT_SHORT(val) \ |
284 | ( COPY_SHORT (&Object_Record_Buffer[Object_Record_Offset], (val)), \ | |
285 | Object_Record_Offset += 2 ) | |
be9618de | 286 | |
ac24997f | 287 | #define PUT_CHAR(val) ( Object_Record_Buffer[Object_Record_Offset++] = (val) ) |
be9618de | 288 | |
ac24997f KR |
289 | #define PUT_COUNTED_STRING(cp) do { \ |
290 | register const char *p = (cp); \ | |
291 | PUT_CHAR ((char) strlen (p)); \ | |
292 | while (*p) PUT_CHAR (*p++); } while (0) | |
be9618de KR |
293 | |
294 | /* | |
295 | * Macro for determining if a Name has psect attributes attached | |
296 | * to it. | |
297 | */ | |
ac24997f KR |
298 | #define PSECT_ATTRIBUTES_STRING "$$PsectAttributes_" |
299 | #define PSECT_ATTRIBUTES_STRING_LENGTH 18 | |
be9618de | 300 | |
ac24997f KR |
301 | #define HAS_PSECT_ATTRIBUTES(Name) \ |
302 | (strncmp ((*Name == '_' ? Name + 1 : Name), \ | |
303 | PSECT_ATTRIBUTES_STRING, \ | |
304 | PSECT_ATTRIBUTES_STRING_LENGTH) == 0) | |
be9618de KR |
305 | \f |
306 | ||
307 | /* in: segT out: N_TYPE bits */ | |
308 | const short seg_N_TYPE[] = | |
309 | { | |
310 | N_ABS, | |
311 | N_TEXT, | |
312 | N_DATA, | |
313 | N_BSS, | |
314 | N_UNDF, /* unknown */ | |
be9618de | 315 | N_UNDF, /* error */ |
5ac34ac3 | 316 | N_UNDF, /* expression */ |
be9618de KR |
317 | N_UNDF, /* debug */ |
318 | N_UNDF, /* ntv */ | |
319 | N_UNDF, /* ptv */ | |
320 | N_REGISTER, /* register */ | |
321 | }; | |
322 | ||
323 | const segT N_TYPE_seg[N_TYPE + 2] = | |
324 | { /* N_TYPE == 0x1E = 32-2 */ | |
325 | SEG_UNKNOWN, /* N_UNDF == 0 */ | |
326 | SEG_GOOF, | |
327 | SEG_ABSOLUTE, /* N_ABS == 2 */ | |
328 | SEG_GOOF, | |
329 | SEG_TEXT, /* N_TEXT == 4 */ | |
330 | SEG_GOOF, | |
331 | SEG_DATA, /* N_DATA == 6 */ | |
332 | SEG_GOOF, | |
333 | SEG_BSS, /* N_BSS == 8 */ | |
334 | SEG_GOOF, | |
335 | SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, | |
336 | SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, | |
337 | SEG_GOOF, SEG_GOOF, SEG_GOOF, SEG_GOOF, | |
338 | SEG_REGISTER, /* dummy N_REGISTER for regs = 30 */ | |
339 | SEG_GOOF, | |
340 | }; | |
341 | \f | |
342 | ||
4b18b7cd KR |
343 | /* Local support routines which return a value. */ |
344 | ||
345 | static struct input_file *find_file PARAMS ((symbolS *)); | |
346 | static struct VMS_DBG_Symbol *find_symbol PARAMS ((int)); | |
4596bc7a | 347 | static symbolS *Define_Routine PARAMS ((symbolS *,int,symbolS *,int)); |
4b18b7cd KR |
348 | |
349 | static char *cvt_integer PARAMS ((char *,int *)); | |
350 | static char *fix_name PARAMS ((char *)); | |
351 | static char *get_struct_name PARAMS ((char *)); | |
352 | ||
53499500 KR |
353 | static offsetT VMS_Initialized_Data_Size PARAMS ((symbolS *,unsigned)); |
354 | ||
4b18b7cd KR |
355 | static int VMS_TBT_Source_File PARAMS ((char *,int)); |
356 | static int gen1 PARAMS ((struct VMS_DBG_Symbol *,int)); | |
357 | static int forward_reference PARAMS ((char *)); | |
358 | static int final_forward_reference PARAMS ((struct VMS_DBG_Symbol *)); | |
359 | static int VMS_typedef_parse PARAMS ((char *)); | |
360 | static int hash_string PARAMS ((const char *)); | |
5700b874 | 361 | static int VMS_Psect_Spec PARAMS ((const char *,int,enum ps_type, |
4b18b7cd | 362 | struct VMS_Symbol *)); |
4b18b7cd KR |
363 | |
364 | /* Local support routines which don't directly return any value. */ | |
365 | ||
366 | static void s_const PARAMS ((int)); | |
367 | static void Create_VMS_Object_File PARAMS ((void)); | |
368 | static void Flush_VMS_Object_Record_Buffer PARAMS ((void)); | |
369 | static void Set_VMS_Object_File_Record PARAMS ((int)); | |
370 | static void Close_VMS_Object_File PARAMS ((void)); | |
371 | static void vms_tir_stack_psect PARAMS ((int,int,int)); | |
372 | static void VMS_Store_Immediate_Data PARAMS ((const char *,int,int)); | |
373 | static void VMS_Set_Data PARAMS ((int,int,int,int)); | |
374 | static void VMS_Store_Struct PARAMS ((int)); | |
375 | static void VMS_Def_Struct PARAMS ((int)); | |
376 | static void VMS_Set_Struct PARAMS ((int)); | |
377 | static void VMS_TBT_Module_Begin PARAMS ((void)); | |
378 | static void VMS_TBT_Module_End PARAMS ((void)); | |
379 | static void VMS_TBT_Routine_Begin PARAMS ((symbolS *,int)); | |
380 | static void VMS_TBT_Routine_End PARAMS ((int,symbolS *)); | |
381 | static void VMS_TBT_Block_Begin PARAMS ((symbolS *,int,char *)); | |
4596bc7a | 382 | static void VMS_TBT_Block_End PARAMS ((valueT)); |
4b18b7cd KR |
383 | static void VMS_TBT_Line_PC_Correlation PARAMS ((int,int,int,int)); |
384 | static void VMS_TBT_Source_Lines PARAMS ((int,int,int)); | |
385 | static void fpush PARAMS ((int,int)); | |
386 | static void rpush PARAMS ((int,int)); | |
387 | static void array_suffix PARAMS ((struct VMS_DBG_Symbol *)); | |
388 | static void new_forward_ref PARAMS ((int)); | |
389 | static void generate_suffix PARAMS ((struct VMS_DBG_Symbol *,int)); | |
390 | static void bitfield_suffix PARAMS ((struct VMS_DBG_Symbol *,int)); | |
391 | static void setup_basic_type PARAMS ((struct VMS_DBG_Symbol *)); | |
392 | static void VMS_DBG_record PARAMS ((struct VMS_DBG_Symbol *,int,int,char *)); | |
393 | static void VMS_local_stab_Parse PARAMS ((symbolS *)); | |
394 | static void VMS_stab_parse PARAMS ((symbolS *,int,int,int,int)); | |
395 | static void VMS_GSYM_Parse PARAMS ((symbolS *,int)); | |
396 | static void VMS_LCSYM_Parse PARAMS ((symbolS *,int)); | |
397 | static void VMS_STSYM_Parse PARAMS ((symbolS *,int)); | |
398 | static void VMS_RSYM_Parse PARAMS ((symbolS *,symbolS *,int)); | |
399 | static void VMS_LSYM_Parse PARAMS ((void)); | |
4596bc7a | 400 | static void Define_Local_Symbols PARAMS ((symbolS *,symbolS *,symbolS *,int)); |
4b18b7cd | 401 | static void Write_VMS_MHD_Records PARAMS ((void)); |
53499500 | 402 | static void Write_VMS_EOM_Record PARAMS ((int,valueT)); |
4b18b7cd KR |
403 | static void VMS_Case_Hack_Symbol PARAMS ((const char *,char *)); |
404 | static void VMS_Modify_Psect_Attributes PARAMS ((const char *,int *)); | |
405 | static void VMS_Global_Symbol_Spec PARAMS ((const char *,int,int,int)); | |
406 | static void VMS_Local_Environment_Setup PARAMS ((const char *)); | |
407 | static void VMS_Emit_Globalvalues PARAMS ((unsigned,unsigned,char *)); | |
408 | static void VMS_Procedure_Entry_Pt PARAMS ((char *,int,int,int)); | |
409 | static void VMS_Set_Psect PARAMS ((int,int,int)); | |
410 | static void VMS_Store_Repeated_Data PARAMS ((int,char *,int,int)); | |
411 | static void VMS_Store_PIC_Symbol_Reference PARAMS ((symbolS *,int, | |
412 | int,int,int,int)); | |
413 | static void VMS_Fix_Indirect_Reference PARAMS ((int,int,fragS *,fragS *)); | |
0b415077 KR |
414 | |
415 | /* Support code which used to be inline within vms_write_object_file. */ | |
416 | static void vms_fixup_text_section PARAMS ((unsigned,struct frag *,struct frag *)); | |
417 | static void synthesize_data_segment PARAMS ((unsigned,unsigned,struct frag *)); | |
418 | static void vms_fixup_data_section PARAMS ((unsigned,unsigned)); | |
419 | static void global_symbol_directory PARAMS ((unsigned,unsigned)); | |
420 | static void local_symbols_DST PARAMS ((symbolS *,symbolS *)); | |
421 | static void vms_build_DST PARAMS ((unsigned)); | |
4b18b7cd KR |
422 | \f |
423 | ||
be9618de | 424 | /* The following code defines the special types of pseudo-ops that we |
bdc82d81 | 425 | use with VMS. */ |
be9618de | 426 | |
5700b874 | 427 | unsigned char const_flag = IN_DEFAULT_SECTION; |
be9618de | 428 | |
4b18b7cd KR |
429 | static void |
430 | s_const (arg) | |
431 | int arg; /* 3rd field from obj_pseudo_table[]; not needed here */ | |
be9618de | 432 | { |
4b18b7cd KR |
433 | /* Since we don't need `arg', use it as our scratch variable so that |
434 | we won't get any "not used" warnings about it. */ | |
435 | arg = get_absolute_expression (); | |
436 | subseg_set (SEG_DATA, (subsegT) arg); | |
be9618de KR |
437 | const_flag = 1; |
438 | demand_empty_rest_of_line (); | |
439 | } | |
440 | ||
be9618de KR |
441 | const pseudo_typeS obj_pseudo_table[] = |
442 | { | |
be9618de KR |
443 | {"const", s_const, 0}, |
444 | {0, 0, 0}, | |
be9618de KR |
445 | }; /* obj_pseudo_table */ |
446 | ||
ac24997f KR |
447 | |
448 | /* Routine to perform RESOLVE_SYMBOL_REDEFINITION(). */ | |
449 | ||
db4e0f90 KR |
450 | int |
451 | vms_resolve_symbol_redef (sym) | |
452 | symbolS *sym; | |
453 | { | |
454 | /* | |
455 | * If the new symbol is .comm AND it has a size of zero, | |
456 | * we ignore it (i.e. the old symbol overrides it) | |
457 | */ | |
87e48495 KR |
458 | if (SEGMENT_TO_SYMBOL_TYPE ((int) now_seg) == (N_UNDF | N_EXT) |
459 | && frag_now_fix () == 0) | |
db4e0f90 | 460 | { |
48401fcf | 461 | as_warn (_("compiler emitted zero-size common symbol `%s' already defined"), |
db4e0f90 KR |
462 | S_GET_NAME (sym)); |
463 | return 1; | |
464 | } | |
465 | /* | |
466 | * If the old symbol is .comm and it has a size of zero, | |
467 | * we override it with the new symbol value. | |
468 | */ | |
ac24997f | 469 | if (S_IS_EXTERNAL (sym) && S_IS_DEFINED (sym) && S_GET_VALUE (sym) == 0) |
db4e0f90 | 470 | { |
48401fcf | 471 | as_warn (_("compiler redefined zero-size common symbol `%s'"), |
db4e0f90 KR |
472 | S_GET_NAME (sym)); |
473 | sym->sy_frag = frag_now; | |
ac24997f KR |
474 | S_SET_OTHER (sym, const_flag); |
475 | S_SET_VALUE (sym, frag_now_fix ()); | |
db4e0f90 | 476 | /* Keep N_EXT bit. */ |
ac24997f | 477 | sym->sy_symbol.n_type |= SEGMENT_TO_SYMBOL_TYPE ((int) now_seg); |
db4e0f90 KR |
478 | return 1; |
479 | } | |
480 | ||
481 | return 0; | |
482 | } | |
483 | ||
bdc82d81 | 484 | |
a9918088 KR |
485 | /* `tc_frob_label' handler for colon(symbols.c), used to examine the |
486 | dummy label(s) gcc inserts at the beginning of each file it generates. | |
bdc82d81 | 487 | gcc 1.x put "gcc_compiled."; gcc 2.x (as of 2.7) puts "gcc2_compiled." |
a9918088 KR |
488 | and "__gnu_language_<name>" and possibly "__vax_<type>_doubles". */ |
489 | ||
490 | void | |
bdc82d81 | 491 | vms_check_for_special_label (symbolP) |
a9918088 KR |
492 | symbolS *symbolP; |
493 | { | |
494 | /* Special labels only occur prior to explicit section directives. */ | |
495 | if ((const_flag & IN_DEFAULT_SECTION) != 0) | |
496 | { | |
ac24997f | 497 | char *sym_name = S_GET_NAME (symbolP); |
a9918088 KR |
498 | |
499 | if (*sym_name == '_') | |
500 | ++sym_name; | |
501 | ||
502 | if (!strcmp (sym_name, "__vax_g_doubles")) | |
503 | vax_g_doubles = 1; | |
504 | #if 0 /* not necessary */ | |
505 | else if (!strcmp (sym_name, "__vax_d_doubles")) | |
506 | vax_g_doubles = 0; | |
507 | #endif | |
508 | #if 0 /* these are potential alternatives to tc-vax.c's md_parse_options() */ | |
509 | else if (!strcmp (sym_name, "gcc_compiled.")) | |
510 | flag_one = 1; | |
511 | else if (!strcmp (sym_name, "__gnu_language_cplusplus")) | |
512 | flag_hash_long_names = 1; | |
513 | #endif | |
514 | } | |
515 | return; | |
516 | } | |
db4e0f90 | 517 | |
bdc82d81 KR |
518 | |
519 | void | |
be9618de KR |
520 | obj_read_begin_hook () |
521 | { | |
8e86815b | 522 | return; |
c999fd9f | 523 | } |
be9618de | 524 | |
bdc82d81 | 525 | |
58abad7d | 526 | void |
be9618de KR |
527 | obj_crawl_symbol_chain (headers) |
528 | object_headers *headers; | |
529 | { | |
530 | symbolS *symbolP; | |
531 | symbolS **symbolPP; | |
58abad7d | 532 | int symbol_number = 0; |
be9618de | 533 | |
58abad7d KR |
534 | symbolPP = &symbol_rootP; /* -> last symbol chain link. */ |
535 | while ((symbolP = *symbolPP) != NULL) | |
be9618de | 536 | { |
8cf777d6 | 537 | resolve_symbol_value (symbolP, 1); |
58abad7d KR |
538 | |
539 | /* OK, here is how we decide which symbols go out into the | |
540 | brave new symtab. Symbols that do are: | |
541 | ||
542 | * symbols with no name (stabd's?) | |
543 | * symbols with debug info in their N_TYPE | |
544 | * symbols with \1 as their 3rd character (numeric labels) | |
545 | * "local labels" needed for PIC fixups | |
546 | ||
547 | Symbols that don't are: | |
548 | * symbols that are registers | |
549 | ||
550 | All other symbols are output. We complain if a deleted | |
551 | symbol was marked external. */ | |
552 | ||
553 | if (!S_IS_REGISTER (symbolP)) | |
be9618de | 554 | { |
58abad7d KR |
555 | symbolP->sy_number = symbol_number++; |
556 | symbolP->sy_name_offset = 0; | |
557 | symbolPP = &(symbol_next (symbolP)); | |
558 | } | |
559 | else | |
560 | { | |
561 | if (S_IS_EXTERNAL (symbolP) || !S_IS_DEFINED (symbolP)) | |
be9618de | 562 | { |
48401fcf | 563 | as_bad (_("Local symbol %s never defined"), S_GET_NAME (symbolP)); |
58abad7d | 564 | } /* oops. */ |
be9618de | 565 | |
58abad7d KR |
566 | /* Unhook it from the chain. */ |
567 | *symbolPP = symbol_next (symbolP); | |
568 | } /* if this symbol should be in the output */ | |
be9618de | 569 | |
58abad7d KR |
570 | } /* for each symbol */ |
571 | ||
572 | H_SET_STRING_SIZE (headers, string_byte_count); | |
573 | H_SET_SYMBOL_TABLE_SIZE (headers, symbol_number); | |
be9618de KR |
574 | } /* obj_crawl_symbol_chain() */ |
575 | \f | |
576 | ||
577 | /****** VMS OBJECT FILE HACKING ROUTINES *******/ | |
578 | ||
579 | ||
bdc82d81 KR |
580 | /* Create the VMS object file. */ |
581 | ||
8e86815b | 582 | static void |
be9618de KR |
583 | Create_VMS_Object_File () |
584 | { | |
b9419dd2 | 585 | #if defined(eunice) || !defined(VMS) |
be9618de KR |
586 | VMS_Object_File_FD = creat (out_file_name, 0777, "var"); |
587 | #else /* eunice */ | |
bdc82d81 | 588 | VMS_Object_File_FD = creat (out_file_name, 0, "rfm=var", |
499ecd2f ILT |
589 | "ctx=bin", "mbc=16", "deq=64", "fop=tef", |
590 | "shr=nil"); | |
be9618de | 591 | #endif /* eunice */ |
bdc82d81 | 592 | /* Deal with errors. */ |
be9618de | 593 | if (VMS_Object_File_FD < 0) |
48401fcf | 594 | as_fatal (_("Couldn't create VMS object file \"%s\""), out_file_name); |
bdc82d81 | 595 | /* Initialize object file hacking variables. */ |
be9618de KR |
596 | Object_Record_Offset = 0; |
597 | Current_Object_Record_Type = -1; | |
598 | } | |
be9618de | 599 | |
bdc82d81 KR |
600 | |
601 | /* Flush the object record buffer to the object file. */ | |
602 | ||
8e86815b | 603 | static void |
be9618de KR |
604 | Flush_VMS_Object_Record_Buffer () |
605 | { | |
bdc82d81 | 606 | /* If the buffer is empty, there's nothing to do. */ |
be9618de KR |
607 | if (Object_Record_Offset == 0) |
608 | return; | |
bdc82d81 | 609 | |
b9419dd2 | 610 | #ifndef VMS /* For cross-assembly purposes. */ |
bdc82d81 KR |
611 | { |
612 | char RecLen[2]; | |
613 | ||
614 | /* "Variable-length record" files have a two byte length field | |
615 | prepended to each record. It's normally out-of-band, and native | |
616 | VMS output will insert it automatically for this type of file. | |
617 | When cross-assembling, we must write it explicitly. */ | |
618 | md_number_to_chars (RecLen, Object_Record_Offset, 2); | |
619 | if (write (VMS_Object_File_FD, RecLen, 2) != 2) | |
48401fcf | 620 | error (_("I/O error writing VMS object file (length prefix)")); |
bdc82d81 KR |
621 | /* We also need to force the actual record to be an even number of |
622 | bytes. For native output, that's automatic; when cross-assembling, | |
623 | pad with a NUL byte if length is odd. Do so _after_ writing the | |
624 | pre-padded length. Since our buffer is defined with even size, | |
625 | an odd offset implies that it has some room left. */ | |
626 | if ((Object_Record_Offset & 1) != 0) | |
627 | Object_Record_Buffer[Object_Record_Offset++] = '\0'; | |
628 | } | |
b9419dd2 | 629 | #endif /* not VMS */ |
bdc82d81 KR |
630 | |
631 | /* Write the data to the file. */ | |
632 | if (write (VMS_Object_File_FD, Object_Record_Buffer, Object_Record_Offset) | |
633 | != Object_Record_Offset) | |
48401fcf | 634 | error (_("I/O error writing VMS object file")); |
bdc82d81 KR |
635 | |
636 | /* The buffer is now empty. */ | |
be9618de KR |
637 | Object_Record_Offset = 0; |
638 | } | |
be9618de | 639 | |
bdc82d81 KR |
640 | |
641 | /* Declare a particular type of object file record. */ | |
642 | ||
8e86815b | 643 | static void |
be9618de KR |
644 | Set_VMS_Object_File_Record (Type) |
645 | int Type; | |
646 | { | |
bdc82d81 | 647 | /* If the type matches, we are done. */ |
be9618de KR |
648 | if (Type == Current_Object_Record_Type) |
649 | return; | |
bdc82d81 | 650 | /* Otherwise: flush the buffer. */ |
be9618de | 651 | Flush_VMS_Object_Record_Buffer (); |
bdc82d81 | 652 | /* Remember the new type. */ |
be9618de KR |
653 | Current_Object_Record_Type = Type; |
654 | } | |
be9618de KR |
655 | |
656 | ||
bdc82d81 KR |
657 | /* Close the VMS Object file. */ |
658 | ||
8e86815b | 659 | static void |
be9618de KR |
660 | Close_VMS_Object_File () |
661 | { | |
bdc82d81 KR |
662 | /* Flush (should never be necessary) and reset saved record-type context. */ |
663 | Set_VMS_Object_File_Record (-1); | |
8e86815b | 664 | |
bdc82d81 KR |
665 | #ifndef VMS /* For cross-assembly purposes. */ |
666 | { | |
667 | char RecLen[2]; | |
668 | int minus_one = -1; | |
669 | ||
670 | /* Write a 2 byte record-length field of -1 into the file, which | |
671 | means end-of-block when read, hence end-of-file when occurring | |
672 | in the file's last block. It is only needed for variable-length | |
673 | record files transferred to VMS as fixed-length record files | |
674 | (typical for binary FTP; NFS shouldn't need it, but it won't hurt). */ | |
675 | md_number_to_chars (RecLen, minus_one, 2); | |
676 | write (VMS_Object_File_FD, RecLen, 2); | |
677 | } | |
8e86815b | 678 | #else |
bdc82d81 KR |
679 | /* When written on a VMS system, the file header (cf inode) will record |
680 | the actual end-of-file position and no inline marker is needed. */ | |
8e86815b KR |
681 | #endif |
682 | ||
be9618de KR |
683 | close (VMS_Object_File_FD); |
684 | } | |
685 | \f | |
686 | ||
bdc82d81 KR |
687 | /****** Text Information and Relocation routines ******/ |
688 | ||
689 | ||
690 | /* Stack Psect base followed by signed, varying-sized offset. | |
691 | Common to several object records. */ | |
692 | ||
b003a2d9 KR |
693 | static void |
694 | vms_tir_stack_psect (Psect_Index, Offset, Force) | |
695 | int Psect_Index; | |
696 | int Offset; | |
697 | int Force; | |
698 | { | |
699 | int psect_width, offset_width; | |
700 | ||
701 | psect_width = ((unsigned) Psect_Index > 255) ? 2 : 1; | |
702 | offset_width = (Force || Offset > 32767 || Offset < -32768) ? 4 | |
703 | : (Offset > 127 || Offset < -128) ? 2 : 1; | |
704 | #define Sta_P(p,o) (((o)<<1) | ((p)-1)) | |
3c650d09 | 705 | /* byte or word psect; byte, word, or longword offset */ |
b003a2d9 KR |
706 | switch (Sta_P(psect_width,offset_width)) |
707 | { | |
708 | case Sta_P(1,1): PUT_CHAR (TIR_S_C_STA_PB); | |
709 | PUT_CHAR ((char)(unsigned char) Psect_Index); | |
710 | PUT_CHAR ((char) Offset); | |
711 | break; | |
712 | case Sta_P(1,2): PUT_CHAR (TIR_S_C_STA_PW); | |
713 | PUT_CHAR ((char)(unsigned char) Psect_Index); | |
714 | PUT_SHORT (Offset); | |
715 | break; | |
716 | case Sta_P(1,4): PUT_CHAR (TIR_S_C_STA_PL); | |
717 | PUT_CHAR ((char)(unsigned char) Psect_Index); | |
718 | PUT_LONG (Offset); | |
719 | break; | |
720 | case Sta_P(2,1): PUT_CHAR (TIR_S_C_STA_WPB); | |
721 | PUT_SHORT (Psect_Index); | |
722 | PUT_CHAR ((char) Offset); | |
723 | break; | |
724 | case Sta_P(2,2): PUT_CHAR (TIR_S_C_STA_WPW); | |
725 | PUT_SHORT (Psect_Index); | |
726 | PUT_SHORT (Offset); | |
727 | break; | |
728 | case Sta_P(2,4): PUT_CHAR (TIR_S_C_STA_WPL); | |
729 | PUT_SHORT (Psect_Index); | |
730 | PUT_LONG (Offset); | |
731 | break; | |
732 | } | |
733 | #undef Sta_P | |
734 | } | |
735 | ||
bdc82d81 KR |
736 | |
737 | /* Store immediate data in current Psect. */ | |
738 | ||
8e86815b | 739 | static void |
be9618de | 740 | VMS_Store_Immediate_Data (Pointer, Size, Record_Type) |
4b18b7cd | 741 | const char *Pointer; |
be9618de KR |
742 | int Size; |
743 | int Record_Type; | |
744 | { | |
745 | register int i; | |
746 | ||
be9618de | 747 | Set_VMS_Object_File_Record (Record_Type); |
bdc82d81 KR |
748 | /* We can only store as most 128 bytes at a time due to the way that |
749 | TIR commands are encoded. */ | |
be9618de KR |
750 | while (Size > 0) |
751 | { | |
be9618de KR |
752 | i = (Size > 128) ? 128 : Size; |
753 | Size -= i; | |
bdc82d81 KR |
754 | /* If we cannot accommodate this record, flush the buffer. */ |
755 | if ((Object_Record_Offset + i + 1) >= sizeof Object_Record_Buffer) | |
be9618de | 756 | Flush_VMS_Object_Record_Buffer (); |
bdc82d81 | 757 | /* If the buffer is empty we must insert record type. */ |
be9618de KR |
758 | if (Object_Record_Offset == 0) |
759 | PUT_CHAR (Record_Type); | |
bdc82d81 KR |
760 | /* Store the count. The Store Immediate TIR command is implied by |
761 | a negative command byte, and the length of the immediate data | |
762 | is abs(command_byte). So, we write the negated length value. */ | |
763 | PUT_CHAR ((char) (-i & 0xff)); | |
764 | /* Now store the data. */ | |
be9618de KR |
765 | while (--i >= 0) |
766 | PUT_CHAR (*Pointer++); | |
be9618de | 767 | } |
bdc82d81 | 768 | /* Flush the buffer if it is more than 75% full. */ |
3c650d09 KR |
769 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
770 | Flush_VMS_Object_Record_Buffer (); | |
be9618de KR |
771 | } |
772 | ||
bdc82d81 KR |
773 | |
774 | /* Make a data reference. */ | |
775 | ||
8e86815b | 776 | static void |
be9618de KR |
777 | VMS_Set_Data (Psect_Index, Offset, Record_Type, Force) |
778 | int Psect_Index; | |
779 | int Offset; | |
780 | int Record_Type; | |
781 | int Force; | |
782 | { | |
be9618de | 783 | Set_VMS_Object_File_Record (Record_Type); |
bdc82d81 | 784 | /* If the buffer is empty we must insert the record type. */ |
be9618de KR |
785 | if (Object_Record_Offset == 0) |
786 | PUT_CHAR (Record_Type); | |
bdc82d81 | 787 | /* Stack the Psect base with its offset. */ |
b003a2d9 | 788 | vms_tir_stack_psect (Psect_Index, Offset, Force); |
bdc82d81 | 789 | /* Set relocation base. */ |
be9618de | 790 | PUT_CHAR (TIR_S_C_STO_PIDR); |
bdc82d81 | 791 | /* Flush the buffer if it is more than 75% full. */ |
3c650d09 | 792 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
793 | Flush_VMS_Object_Record_Buffer (); |
794 | } | |
795 | ||
bdc82d81 KR |
796 | |
797 | /* Make a debugger reference to a struct, union or enum. */ | |
798 | ||
8e86815b | 799 | static void |
db4e0f90 KR |
800 | VMS_Store_Struct (Struct_Index) |
801 | int Struct_Index; | |
be9618de | 802 | { |
bdc82d81 | 803 | /* We are writing a debug record. */ |
be9618de | 804 | Set_VMS_Object_File_Record (OBJ_S_C_DBG); |
bdc82d81 | 805 | /* If the buffer is empty we must insert the record type. */ |
be9618de KR |
806 | if (Object_Record_Offset == 0) |
807 | PUT_CHAR (OBJ_S_C_DBG); | |
808 | PUT_CHAR (TIR_S_C_STA_UW); | |
809 | PUT_SHORT (Struct_Index); | |
810 | PUT_CHAR (TIR_S_C_CTL_STKDL); | |
811 | PUT_CHAR (TIR_S_C_STO_L); | |
bdc82d81 | 812 | /* Flush the buffer if it is more than 75% full. */ |
3c650d09 | 813 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
814 | Flush_VMS_Object_Record_Buffer (); |
815 | } | |
816 | ||
bdc82d81 KR |
817 | |
818 | /* Make a debugger reference to partially define a struct, union or enum. */ | |
819 | ||
8e86815b | 820 | static void |
db4e0f90 KR |
821 | VMS_Def_Struct (Struct_Index) |
822 | int Struct_Index; | |
be9618de | 823 | { |
bdc82d81 | 824 | /* We are writing a debug record. */ |
be9618de | 825 | Set_VMS_Object_File_Record (OBJ_S_C_DBG); |
bdc82d81 | 826 | /* If the buffer is empty we must insert the record type. */ |
be9618de KR |
827 | if (Object_Record_Offset == 0) |
828 | PUT_CHAR (OBJ_S_C_DBG); | |
829 | PUT_CHAR (TIR_S_C_STA_UW); | |
830 | PUT_SHORT (Struct_Index); | |
831 | PUT_CHAR (TIR_S_C_CTL_DFLOC); | |
bdc82d81 | 832 | /* Flush the buffer if it is more than 75% full. */ |
3c650d09 | 833 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
834 | Flush_VMS_Object_Record_Buffer (); |
835 | } | |
836 | ||
8e86815b | 837 | static void |
db4e0f90 KR |
838 | VMS_Set_Struct (Struct_Index) |
839 | int Struct_Index; | |
be9618de KR |
840 | { /* see previous functions for comments */ |
841 | Set_VMS_Object_File_Record (OBJ_S_C_DBG); | |
842 | if (Object_Record_Offset == 0) | |
843 | PUT_CHAR (OBJ_S_C_DBG); | |
844 | PUT_CHAR (TIR_S_C_STA_UW); | |
845 | PUT_SHORT (Struct_Index); | |
846 | PUT_CHAR (TIR_S_C_CTL_STLOC); | |
3c650d09 | 847 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
848 | Flush_VMS_Object_Record_Buffer (); |
849 | } | |
850 | \f | |
53499500 KR |
851 | |
852 | /****** Traceback Information routines ******/ | |
853 | ||
854 | ||
855 | /* Write the Traceback Module Begin record. */ | |
856 | ||
8e86815b | 857 | static void |
be9618de KR |
858 | VMS_TBT_Module_Begin () |
859 | { | |
860 | register char *cp, *cp1; | |
861 | int Size; | |
be9618de KR |
862 | char Local[256]; |
863 | ||
53499500 KR |
864 | /* Arrange to store the data locally (leave room for size byte). */ |
865 | cp = &Local[1]; | |
866 | /* Begin module. */ | |
be9618de | 867 | *cp++ = DST_S_C_MODBEG; |
53499500 | 868 | *cp++ = 0; /* flags; not used */ |
be9618de KR |
869 | /* |
870 | * Language type == "C" | |
53499500 KR |
871 | * |
872 | * (FIXME: this should be based on the input...) | |
be9618de | 873 | */ |
494a6c05 | 874 | COPY_LONG (cp, DST_S_C_C); |
703139a8 | 875 | cp += 4; |
53499500 KR |
876 | /* Store the module name. */ |
877 | *cp++ = (char) strlen (Module_Name); | |
be9618de KR |
878 | cp1 = Module_Name; |
879 | while (*cp1) | |
880 | *cp++ = *cp1++; | |
53499500 | 881 | /* Now we can store the record size. */ |
be9618de KR |
882 | Size = (cp - Local); |
883 | Local[0] = Size - 1; | |
53499500 | 884 | /* Put it into the object record. */ |
be9618de KR |
885 | VMS_Store_Immediate_Data (Local, Size, OBJ_S_C_TBT); |
886 | } | |
be9618de | 887 | |
53499500 KR |
888 | |
889 | /* Write the Traceback Module End record. */ | |
890 | ||
8e86815b | 891 | static void |
be9618de KR |
892 | VMS_TBT_Module_End () |
893 | { | |
894 | char Local[2]; | |
895 | ||
53499500 | 896 | /* End module. */ |
be9618de KR |
897 | Local[0] = 1; |
898 | Local[1] = DST_S_C_MODEND; | |
53499500 | 899 | /* Put it into the object record. */ |
be9618de KR |
900 | VMS_Store_Immediate_Data (Local, 2, OBJ_S_C_TBT); |
901 | } | |
be9618de | 902 | |
53499500 KR |
903 | |
904 | /* Write a Traceback Routine Begin record. */ | |
905 | ||
8e86815b | 906 | static void |
be9618de | 907 | VMS_TBT_Routine_Begin (symbolP, Psect) |
4b18b7cd | 908 | symbolS *symbolP; |
be9618de KR |
909 | int Psect; |
910 | { | |
911 | register char *cp, *cp1; | |
912 | char *Name; | |
913 | int Offset; | |
914 | int Size; | |
915 | char Local[512]; | |
916 | ||
53499500 | 917 | /* Strip the leading "_" from the name. */ |
be9618de KR |
918 | Name = S_GET_NAME (symbolP); |
919 | if (*Name == '_') | |
920 | Name++; | |
53499500 | 921 | /* Get the text psect offset. */ |
be9618de | 922 | Offset = S_GET_VALUE (symbolP); |
53499500 | 923 | /* Set the record size. */ |
be9618de | 924 | Size = 1 + 1 + 4 + 1 + strlen (Name); |
be9618de | 925 | Local[0] = Size; |
53499500 | 926 | /* DST type "routine begin". */ |
be9618de | 927 | Local[1] = DST_S_C_RTNBEG; |
53499500 | 928 | /* Uses CallS/CallG. */ |
be9618de | 929 | Local[2] = 0; |
53499500 | 930 | /* Store the data so far. */ |
be9618de | 931 | VMS_Store_Immediate_Data (Local, 3, OBJ_S_C_TBT); |
53499500 | 932 | /* Make sure we are still generating a OBJ_S_C_TBT record. */ |
be9618de KR |
933 | if (Object_Record_Offset == 0) |
934 | PUT_CHAR (OBJ_S_C_TBT); | |
53499500 | 935 | /* Stack the address. */ |
b003a2d9 | 936 | vms_tir_stack_psect (Psect, Offset, 0); |
53499500 | 937 | /* Store the data reference. */ |
be9618de | 938 | PUT_CHAR (TIR_S_C_STO_PIDR); |
53499500 | 939 | /* Store the counted string as data. */ |
be9618de KR |
940 | cp = Local; |
941 | cp1 = Name; | |
942 | Size = strlen (cp1) + 1; | |
943 | *cp++ = Size - 1; | |
944 | while (*cp1) | |
945 | *cp++ = *cp1++; | |
946 | VMS_Store_Immediate_Data (Local, Size, OBJ_S_C_TBT); | |
947 | } | |
be9618de | 948 | |
53499500 KR |
949 | |
950 | /* Write a Traceback Routine End record. | |
951 | ||
952 | We *must* search the symbol table to find the next routine, since the | |
953 | assember has a way of reassembling the symbol table OUT OF ORDER Thus | |
954 | the next routine in the symbol list is not necessarily the next one in | |
955 | memory. For debugging to work correctly we must know the size of the | |
956 | routine. */ | |
957 | ||
8e86815b | 958 | static void |
be9618de KR |
959 | VMS_TBT_Routine_End (Max_Size, sp) |
960 | int Max_Size; | |
961 | symbolS *sp; | |
962 | { | |
963 | symbolS *symbolP; | |
964 | int Size = 0x7fffffff; | |
965 | char Local[16]; | |
a9918088 | 966 | valueT sym_value, sp_value = S_GET_VALUE (sp); |
be9618de KR |
967 | |
968 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
969 | { | |
970 | if (!S_IS_DEBUG (symbolP) && S_GET_TYPE (symbolP) == N_TEXT) | |
971 | { | |
972 | if (*S_GET_NAME (symbolP) == 'L') | |
973 | continue; | |
a9918088 KR |
974 | sym_value = S_GET_VALUE (symbolP); |
975 | if (sym_value > sp_value && sym_value < Size) | |
976 | Size = sym_value; | |
977 | ||
978 | /* | |
979 | * Dummy labels like "gcc_compiled." should no longer reach here. | |
980 | */ | |
981 | #if 0 | |
982 | else | |
be9618de | 983 | /* check if gcc_compiled. has size of zero */ |
a9918088 | 984 | if (sym_value == sp_value && |
be9618de KR |
985 | sp != symbolP && |
986 | (!strcmp (S_GET_NAME (sp), "gcc_compiled.") || | |
987 | !strcmp (S_GET_NAME (sp), "gcc2_compiled."))) | |
a9918088 KR |
988 | Size = sym_value; |
989 | #endif | |
c06e55d9 KR |
990 | } |
991 | } | |
be9618de KR |
992 | if (Size == 0x7fffffff) |
993 | Size = Max_Size; | |
a9918088 | 994 | Size -= sp_value; /* and get the size of the routine */ |
53499500 | 995 | /* Record Size. */ |
be9618de | 996 | Local[0] = 6; |
53499500 | 997 | /* DST type is "routine end". */ |
be9618de | 998 | Local[1] = DST_S_C_RTNEND; |
53499500 KR |
999 | Local[2] = 0; /* unused */ |
1000 | /* Size of routine. */ | |
494a6c05 | 1001 | COPY_LONG (&Local[3], Size); |
53499500 | 1002 | /* Store the record. */ |
be9618de KR |
1003 | VMS_Store_Immediate_Data (Local, 7, OBJ_S_C_TBT); |
1004 | } | |
1005 | ||
53499500 KR |
1006 | |
1007 | /* Write a Traceback Block Begin record. */ | |
1008 | ||
8e86815b | 1009 | static void |
be9618de | 1010 | VMS_TBT_Block_Begin (symbolP, Psect, Name) |
4b18b7cd | 1011 | symbolS *symbolP; |
be9618de KR |
1012 | int Psect; |
1013 | char *Name; | |
1014 | { | |
1015 | register char *cp, *cp1; | |
1016 | int Offset; | |
1017 | int Size; | |
1018 | char Local[512]; | |
53499500 KR |
1019 | |
1020 | /* Set the record size. */ | |
be9618de | 1021 | Size = 1 + 1 + 4 + 1 + strlen (Name); |
be9618de | 1022 | Local[0] = Size; |
53499500 | 1023 | /* DST type is "begin block"; we simulate with a phony routine. */ |
be9618de | 1024 | Local[1] = DST_S_C_BLKBEG; |
53499500 | 1025 | /* Uses CallS/CallG. */ |
be9618de | 1026 | Local[2] = 0; |
53499500 | 1027 | /* Store the data so far. */ |
be9618de | 1028 | VMS_Store_Immediate_Data (Local, 3, OBJ_S_C_DBG); |
53499500 | 1029 | /* Make sure we are still generating a debug record. */ |
be9618de KR |
1030 | if (Object_Record_Offset == 0) |
1031 | PUT_CHAR (OBJ_S_C_DBG); | |
53499500 | 1032 | /* Now get the symbol address. */ |
be9618de KR |
1033 | PUT_CHAR (TIR_S_C_STA_WPL); |
1034 | PUT_SHORT (Psect); | |
53499500 | 1035 | /* Get the text psect offset. */ |
be9618de KR |
1036 | Offset = S_GET_VALUE (symbolP); |
1037 | PUT_LONG (Offset); | |
53499500 | 1038 | /* Store the data reference. */ |
be9618de | 1039 | PUT_CHAR (TIR_S_C_STO_PIDR); |
53499500 | 1040 | /* Store the counted string as data. */ |
be9618de KR |
1041 | cp = Local; |
1042 | cp1 = Name; | |
1043 | Size = strlen (cp1) + 1; | |
1044 | *cp++ = Size - 1; | |
1045 | while (*cp1) | |
1046 | *cp++ = *cp1++; | |
1047 | VMS_Store_Immediate_Data (Local, Size, OBJ_S_C_DBG); | |
1048 | } | |
be9618de | 1049 | |
53499500 KR |
1050 | |
1051 | /* Write a Traceback Block End record. */ | |
1052 | ||
8e86815b | 1053 | static void |
db4e0f90 | 1054 | VMS_TBT_Block_End (Size) |
4596bc7a | 1055 | valueT Size; |
be9618de KR |
1056 | { |
1057 | char Local[16]; | |
1058 | ||
53499500 KR |
1059 | Local[0] = 6; /* record length */ |
1060 | /* DST type is "block end"; simulate with a phony end routine. */ | |
be9618de | 1061 | Local[1] = DST_S_C_BLKEND; |
3c650d09 | 1062 | Local[2] = 0; /* unused, must be zero */ |
494a6c05 | 1063 | COPY_LONG (&Local[3], Size); |
be9618de KR |
1064 | VMS_Store_Immediate_Data (Local, 7, OBJ_S_C_DBG); |
1065 | } | |
1066 | \f | |
1067 | ||
53499500 | 1068 | /* Write a Line number <-> Program Counter correlation record. */ |
be9618de | 1069 | |
8e86815b | 1070 | static void |
be9618de KR |
1071 | VMS_TBT_Line_PC_Correlation (Line_Number, Offset, Psect, Do_Delta) |
1072 | int Line_Number; | |
1073 | int Offset; | |
1074 | int Psect; | |
1075 | int Do_Delta; | |
1076 | { | |
1077 | register char *cp; | |
1078 | char Local[64]; | |
1079 | ||
be9618de KR |
1080 | if (Do_Delta == 0) |
1081 | { | |
1082 | /* | |
53499500 | 1083 | * If not delta, set our PC/Line number correlation. |
be9618de | 1084 | */ |
53499500 KR |
1085 | cp = &Local[1]; /* Put size in Local[0] later. */ |
1086 | /* DST type is "Line Number/PC correlation". */ | |
1087 | *cp++ = DST_S_C_LINE_NUM; | |
1088 | /* Set Line number. */ | |
1089 | if (Line_Number - 1 <= 255) | |
1090 | { | |
1091 | *cp++ = DST_S_C_SET_LINUM_B; | |
1092 | *cp++ = (char) (Line_Number - 1); | |
1093 | } | |
1094 | else if (Line_Number - 1 <= 65535) | |
1095 | { | |
1096 | *cp++ = DST_S_C_SET_LINE_NUM; | |
1097 | COPY_SHORT (cp, Line_Number - 1), cp += 2; | |
1098 | } | |
1099 | else | |
1100 | { | |
1101 | *cp++ = DST_S_C_SET_LINUM_L; | |
1102 | COPY_LONG (cp, Line_Number - 1), cp += 4; | |
1103 | } | |
1104 | /* Set PC. */ | |
1105 | *cp++ = DST_S_C_SET_ABS_PC; | |
1106 | /* Store size now that we know it, then output the data. */ | |
1107 | Local[0] = cp - &Local[1]; | |
1108 | /* Account for the space that TIR_S_C_STO_PIDR will use for the PC. */ | |
1109 | Local[0] += 4; /* size includes length of another longword */ | |
1110 | VMS_Store_Immediate_Data (Local, cp - Local, OBJ_S_C_TBT); | |
1111 | /* Make sure we are still generating a OBJ_S_C_TBT record. */ | |
be9618de KR |
1112 | if (Object_Record_Offset == 0) |
1113 | PUT_CHAR (OBJ_S_C_TBT); | |
b003a2d9 | 1114 | vms_tir_stack_psect (Psect, Offset, 0); |
be9618de | 1115 | PUT_CHAR (TIR_S_C_STO_PIDR); |
53499500 | 1116 | /* Do a PC offset of 0 to register the line number. */ |
be9618de KR |
1117 | Local[0] = 2; |
1118 | Local[1] = DST_S_C_LINE_NUM; | |
1119 | Local[2] = 0; /* Increment PC by 0 and register line # */ | |
1120 | VMS_Store_Immediate_Data (Local, 3, OBJ_S_C_TBT); | |
1121 | } | |
1122 | else | |
1123 | { | |
be9618de KR |
1124 | if (Do_Delta < 0) |
1125 | { | |
53499500 KR |
1126 | /* |
1127 | * When delta is negative, terminate the line numbers. | |
1128 | */ | |
be9618de KR |
1129 | Local[0] = 1 + 1 + 4; |
1130 | Local[1] = DST_S_C_LINE_NUM; | |
1131 | Local[2] = DST_S_C_TERM_L; | |
494a6c05 | 1132 | COPY_LONG (&Local[3], Offset); |
be9618de | 1133 | VMS_Store_Immediate_Data (Local, 7, OBJ_S_C_TBT); |
be9618de KR |
1134 | return; |
1135 | } | |
1136 | /* | |
53499500 | 1137 | * Do a PC/Line delta. |
be9618de | 1138 | */ |
53499500 | 1139 | cp = &Local[1]; |
be9618de KR |
1140 | *cp++ = DST_S_C_LINE_NUM; |
1141 | if (Line_Number > 1) | |
1142 | { | |
53499500 | 1143 | /* We need to increment the line number. */ |
be9618de KR |
1144 | if (Line_Number - 1 <= 255) |
1145 | { | |
1146 | *cp++ = DST_S_C_INCR_LINUM; | |
1147 | *cp++ = Line_Number - 1; | |
1148 | } | |
53499500 | 1149 | else if (Line_Number - 1 <= 65535) |
be9618de KR |
1150 | { |
1151 | *cp++ = DST_S_C_INCR_LINUM_W; | |
53499500 KR |
1152 | COPY_SHORT (cp, Line_Number - 1), cp += 2; |
1153 | } | |
1154 | else | |
1155 | { | |
1156 | *cp++ = DST_S_C_INCR_LINUM_L; | |
1157 | COPY_LONG (cp, Line_Number - 1), cp += 4; | |
be9618de KR |
1158 | } |
1159 | } | |
1160 | /* | |
1161 | * Increment the PC | |
1162 | */ | |
1163 | if (Offset <= 128) | |
1164 | { | |
53499500 KR |
1165 | /* Small offsets are encoded as negative numbers, rather than the |
1166 | usual non-negative type code followed by another data field. */ | |
1167 | *cp++ = (char) -Offset; | |
1168 | } | |
1169 | else if (Offset <= 65535) | |
1170 | { | |
1171 | *cp++ = DST_S_C_DELTA_PC_W; | |
1172 | COPY_SHORT (cp, Offset), cp += 2; | |
be9618de KR |
1173 | } |
1174 | else | |
1175 | { | |
53499500 KR |
1176 | *cp++ = DST_S_C_DELTA_PC_L; |
1177 | COPY_LONG (cp, Offset), cp += 4; | |
be9618de | 1178 | } |
53499500 KR |
1179 | /* Set size now that be know it, then output the data. */ |
1180 | Local[0] = cp - &Local[1]; | |
be9618de KR |
1181 | VMS_Store_Immediate_Data (Local, cp - Local, OBJ_S_C_TBT); |
1182 | } | |
1183 | } | |
1184 | \f | |
1185 | ||
53499500 KR |
1186 | /* Describe a source file to the debugger. */ |
1187 | ||
8e86815b | 1188 | static int |
be9618de KR |
1189 | VMS_TBT_Source_File (Filename, ID_Number) |
1190 | char *Filename; | |
1191 | int ID_Number; | |
1192 | { | |
53499500 KR |
1193 | register char *cp; |
1194 | int len, rfo, ffb, ebk; | |
1195 | char cdt[8]; | |
be9618de | 1196 | char Local[512]; |
53499500 KR |
1197 | #ifdef VMS /* Used for native assembly */ |
1198 | unsigned Status; | |
1199 | struct FAB fab; /* RMS file access block */ | |
1200 | struct NAM nam; /* file name information */ | |
1201 | struct XABDAT xabdat; /* date+time fields */ | |
1202 | struct XABFHC xabfhc; /* file header characteristics */ | |
1203 | char resultant_string_buffer[255 + 1]; | |
1204 | ||
1205 | /* | |
1206 | * Set up RMS structures: | |
1207 | */ | |
1208 | /* FAB -- file access block */ | |
1209 | memset ((char *) &fab, 0, sizeof fab); | |
1210 | fab.fab$b_bid = FAB$C_BID; | |
1211 | fab.fab$b_bln = (unsigned char) sizeof fab; | |
1212 | fab.fab$l_fna = Filename; | |
1213 | fab.fab$b_fns = (unsigned char) strlen (Filename); | |
1214 | fab.fab$l_nam = (char *) &nam; | |
1215 | fab.fab$l_xab = (char *) &xabdat; | |
1216 | /* NAM -- file name block */ | |
1217 | memset ((char *) &nam, 0, sizeof nam); | |
1218 | nam.nam$b_bid = NAM$C_BID; | |
1219 | nam.nam$b_bln = (unsigned char) sizeof nam; | |
1220 | nam.nam$l_rsa = resultant_string_buffer; | |
1221 | nam.nam$b_rss = (unsigned char) (sizeof resultant_string_buffer - 1); | |
1222 | /* XABs -- extended attributes blocks */ | |
1223 | memset ((char *) &xabdat, 0, sizeof xabdat); | |
1224 | xabdat.xab$b_cod = XAB$C_DAT; | |
1225 | xabdat.xab$b_bln = (unsigned char) sizeof xabdat; | |
1226 | xabdat.xab$l_nxt = (char *) &xabfhc; | |
1227 | memset ((char *) &xabfhc, 0, sizeof xabfhc); | |
1228 | xabfhc.xab$b_cod = XAB$C_FHC; | |
1229 | xabfhc.xab$b_bln = (unsigned char) sizeof xabfhc; | |
1230 | xabfhc.xab$l_nxt = 0; | |
be9618de KR |
1231 | /* |
1232 | * Get the file information | |
1233 | */ | |
53499500 | 1234 | Status = sys$open (&fab); |
be9618de KR |
1235 | if (!(Status & 1)) |
1236 | { | |
48401fcf | 1237 | as_tsktsk (_("Couldn't find source file \"%s\", status=%%X%x"), |
703139a8 | 1238 | Filename, Status); |
53499500 KR |
1239 | return 0; |
1240 | } | |
1241 | sys$close (&fab); | |
1242 | /* Now extract fields of interest. */ | |
1243 | memcpy (cdt, (char *) &xabdat.xab$q_cdt, 8); /* creation date */ | |
1244 | ebk = xabfhc.xab$l_ebk; /* end-of-file block */ | |
1245 | ffb = xabfhc.xab$w_ffb; /* first free byte of last block */ | |
1246 | rfo = xabfhc.xab$b_rfo; /* record format */ | |
1247 | len = nam.nam$b_rsl; /* length of Filename */ | |
1248 | resultant_string_buffer[len] = '\0'; | |
1249 | Filename = resultant_string_buffer; /* full filename */ | |
1250 | #else /* Cross-assembly */ | |
1251 | /* [Perhaps we ought to use actual values derived from stat() here?] */ | |
1252 | memset (cdt, 0, 8); /* null VMS quadword binary time */ | |
1253 | ebk = ffb = rfo = 0; | |
1254 | len = strlen (Filename); | |
1255 | if (len > 255) /* a single byte is used as count prefix */ | |
1256 | { | |
1257 | Filename += (len - 255); /* tail end is more significant */ | |
1258 | len = 255; | |
be9618de | 1259 | } |
b9419dd2 | 1260 | #endif /* VMS */ |
53499500 KR |
1261 | |
1262 | cp = &Local[1]; /* fill in record length later */ | |
1263 | *cp++ = DST_S_C_SOURCE; /* DST type is "source file" */ | |
1264 | *cp++ = DST_S_C_SRC_FORMFEED; /* formfeeds count as source records */ | |
1265 | *cp++ = DST_S_C_SRC_DECLFILE; /* declare source file */ | |
1266 | know (cp == &Local[4]); | |
1267 | *cp++ = 0; /* fill in this length below */ | |
1268 | *cp++ = 0; /* flags; must be zero */ | |
1269 | COPY_SHORT (cp, ID_Number), cp += 2; /* file ID number */ | |
1270 | memcpy (cp, cdt, 8), cp += 8; /* creation date+time */ | |
1271 | COPY_LONG (cp, ebk), cp += 4; /* end-of-file block */ | |
1272 | COPY_SHORT (cp, ffb), cp += 2; /* first free byte of last block */ | |
1273 | *cp++ = (char) rfo; /* RMS record format */ | |
1274 | /* Filename. */ | |
1275 | *cp++ = (char) len; | |
1276 | while (--len >= 0) | |
1277 | *cp++ = *Filename++; | |
1278 | /* Library module name (none). */ | |
be9618de | 1279 | *cp++ = 0; |
53499500 KR |
1280 | /* Now that size is known, fill it in and write out the record. */ |
1281 | Local[4] = cp - &Local[5]; /* source file declaration size */ | |
1282 | Local[0] = cp - &Local[1]; /* TBT record size */ | |
be9618de KR |
1283 | VMS_Store_Immediate_Data (Local, cp - Local, OBJ_S_C_TBT); |
1284 | return 1; | |
1285 | } | |
be9618de | 1286 | |
53499500 KR |
1287 | |
1288 | /* Traceback information is described in terms of lines from compiler | |
1289 | listing files, not lines from source files. We need to set up the | |
1290 | correlation between listing line numbers and source line numbers. | |
1291 | Since gcc's .stabn directives refer to the source lines, we just | |
1292 | need to describe a one-to-one correspondence. */ | |
1293 | ||
8e86815b | 1294 | static void |
be9618de KR |
1295 | VMS_TBT_Source_Lines (ID_Number, Starting_Line_Number, Number_Of_Lines) |
1296 | int ID_Number; | |
1297 | int Starting_Line_Number; | |
1298 | int Number_Of_Lines; | |
1299 | { | |
8e86815b | 1300 | char *cp; |
53499500 KR |
1301 | int chunk_limit; |
1302 | char Local[128]; /* room enough to describe 1310700 lines... */ | |
1303 | ||
1304 | cp = &Local[1]; /* Put size in Local[0] later. */ | |
1305 | *cp++ = DST_S_C_SOURCE; /* DST type is "source file". */ | |
1306 | *cp++ = DST_S_C_SRC_SETFILE; /* Set Source File. */ | |
1307 | COPY_SHORT (cp, ID_Number), cp += 2; /* File ID Number. */ | |
1308 | /* Set record number and define lines. Since no longword form of | |
1309 | SRC_DEFLINES is available, we need to be able to cope with any huge | |
1310 | files a chunk at a time. It doesn't matter for tracebacks, since | |
1311 | unspecified lines are mapped one-to-one and work out right, but it | |
1312 | does matter within the debugger. Without this explicit mapping, | |
1313 | it will complain about lines not existing in the module. */ | |
1314 | chunk_limit = (sizeof Local - 5) / 6; | |
1315 | if (Number_Of_Lines > 65535 * chunk_limit) /* avoid buffer overflow */ | |
1316 | Number_Of_Lines = 65535 * chunk_limit; | |
1317 | while (Number_Of_Lines > 65535) | |
1318 | { | |
1319 | *cp++ = DST_S_C_SRC_SETREC_L; | |
1320 | COPY_LONG (cp, Starting_Line_Number), cp += 4; | |
1321 | *cp++ = DST_S_C_SRC_DEFLINES_W; | |
1322 | COPY_SHORT (cp, 65535), cp += 2; | |
1323 | Starting_Line_Number += 65535; | |
1324 | Number_Of_Lines -= 65535; | |
1325 | } | |
1326 | /* Set record number and define lines, normal case. */ | |
1327 | if (Starting_Line_Number <= 65535) | |
1328 | { | |
1329 | *cp++ = DST_S_C_SRC_SETREC_W; | |
1330 | COPY_SHORT (cp, Starting_Line_Number), cp += 2; | |
1331 | } | |
1332 | else | |
1333 | { | |
1334 | *cp++ = DST_S_C_SRC_SETREC_L; | |
1335 | COPY_LONG (cp, Starting_Line_Number), cp += 4; | |
1336 | } | |
be9618de | 1337 | *cp++ = DST_S_C_SRC_DEFLINES_W; |
53499500 KR |
1338 | COPY_SHORT (cp, Number_Of_Lines), cp += 2; |
1339 | /* Set size now that be know it, then output the data. */ | |
1340 | Local[0] = cp - &Local[1]; | |
be9618de KR |
1341 | VMS_Store_Immediate_Data (Local, cp - Local, OBJ_S_C_TBT); |
1342 | } | |
1343 | \f | |
1344 | ||
d57bf0e0 KR |
1345 | /****** Debugger Information support routines ******/ |
1346 | ||
1347 | ||
1348 | /* This routine locates a file in the list of files. If an entry does | |
1349 | not exist, one is created. For include files, a new entry is always | |
1350 | created such that inline functions can be properly debugged. */ | |
be9618de | 1351 | |
be9618de KR |
1352 | static struct input_file * |
1353 | find_file (sp) | |
1354 | symbolS *sp; | |
1355 | { | |
3c650d09 KR |
1356 | struct input_file *same_file = 0; |
1357 | struct input_file *fpnt, *last = 0; | |
1358 | char *sp_name; | |
1359 | ||
be9618de KR |
1360 | for (fpnt = file_root; fpnt; fpnt = fpnt->next) |
1361 | { | |
be9618de KR |
1362 | if (fpnt->spnt == sp) |
1363 | return fpnt; | |
3c650d09 | 1364 | last = fpnt; |
c06e55d9 | 1365 | } |
3c650d09 | 1366 | sp_name = S_GET_NAME (sp); |
be9618de KR |
1367 | for (fpnt = file_root; fpnt; fpnt = fpnt->next) |
1368 | { | |
3c650d09 | 1369 | if (strcmp (sp_name, fpnt->name) == 0) |
be9618de KR |
1370 | { |
1371 | if (fpnt->flag == 1) | |
1372 | return fpnt; | |
1373 | same_file = fpnt; | |
1374 | break; | |
c06e55d9 KR |
1375 | } |
1376 | } | |
1377 | fpnt = (struct input_file *) xmalloc (sizeof (struct input_file)); | |
3c650d09 | 1378 | if (!file_root) |
be9618de KR |
1379 | file_root = fpnt; |
1380 | else | |
3c650d09 KR |
1381 | last->next = fpnt; |
1382 | fpnt->next = 0; | |
1383 | fpnt->name = sp_name; | |
be9618de KR |
1384 | fpnt->min_line = 0x7fffffff; |
1385 | fpnt->max_line = 0; | |
1386 | fpnt->offset = 0; | |
1387 | fpnt->flag = 0; | |
1388 | fpnt->file_number = 0; | |
1389 | fpnt->spnt = sp; | |
1390 | fpnt->same_file_fpnt = same_file; | |
1391 | return fpnt; | |
1392 | } | |
be9618de KR |
1393 | |
1394 | ||
d57bf0e0 KR |
1395 | /* This routine converts a number string into an integer, and stops when |
1396 | it sees an invalid character. The return value is the address of the | |
1397 | character just past the last character read. No error is generated. */ | |
1398 | ||
be9618de KR |
1399 | static char * |
1400 | cvt_integer (str, rtn) | |
1401 | char *str; | |
1402 | int *rtn; | |
1403 | { | |
d57bf0e0 KR |
1404 | int ival = 0, sgn = 1; |
1405 | ||
1406 | if (*str == '-') | |
1407 | sgn = -1, ++str; | |
1408 | while (*str >= '0' && *str <= '9') | |
be9618de | 1409 | ival = 10 * ival + *str++ - '0'; |
d57bf0e0 | 1410 | *rtn = sgn * ival; |
be9618de KR |
1411 | return str; |
1412 | } | |
d57bf0e0 | 1413 | \f |
be9618de | 1414 | |
d57bf0e0 KR |
1415 | /* |
1416 | * The following functions and definitions are used to generate object | |
1417 | * records that will describe program variables to the VMS debugger. | |
be9618de | 1418 | * |
d57bf0e0 KR |
1419 | * This file contains many of the routines needed to output debugging info |
1420 | * into the object file that the VMS debugger needs to understand symbols. | |
1421 | * These routines are called very late in the assembly process, and thus | |
1422 | * we can be fairly lax about changing things, since the GSD and the TIR | |
1423 | * sections have already been output. | |
1424 | */ | |
1425 | ||
1426 | ||
1427 | /* This routine fixes the names that are generated by C++, ".this" is a good | |
1428 | example. The period does not work for the debugger, since it looks like | |
1429 | the syntax for a structure element, and thus it gets mightily confused. | |
1430 | ||
1431 | We also use this to strip the PsectAttribute hack from the name before we | |
1432 | write a debugger record. */ | |
be9618de KR |
1433 | |
1434 | static char * | |
1435 | fix_name (pnt) | |
1436 | char *pnt; | |
1437 | { | |
1438 | char *pnt1; | |
d57bf0e0 KR |
1439 | |
1440 | /* Kill any leading "_". */ | |
be9618de KR |
1441 | if (*pnt == '_') |
1442 | pnt++; | |
d57bf0e0 KR |
1443 | |
1444 | /* Is there a Psect Attribute to skip?? */ | |
be9618de KR |
1445 | if (HAS_PSECT_ATTRIBUTES (pnt)) |
1446 | { | |
d57bf0e0 | 1447 | /* Yes: Skip it. */ |
be9618de KR |
1448 | pnt += PSECT_ATTRIBUTES_STRING_LENGTH; |
1449 | while (*pnt) | |
1450 | { | |
1451 | if ((pnt[0] == '$') && (pnt[1] == '$')) | |
1452 | { | |
1453 | pnt += 2; | |
1454 | break; | |
1455 | } | |
1456 | pnt++; | |
1457 | } | |
1458 | } | |
d57bf0e0 KR |
1459 | |
1460 | /* Here we fix the .this -> $this conversion. */ | |
be9618de | 1461 | for (pnt1 = pnt; *pnt1 != 0; pnt1++) |
d57bf0e0 KR |
1462 | if (*pnt1 == '.') |
1463 | *pnt1 = '$'; | |
1464 | ||
be9618de KR |
1465 | return pnt; |
1466 | } | |
1467 | ||
d57bf0e0 | 1468 | |
be9618de | 1469 | /* When defining a structure, this routine is called to find the name of |
d57bf0e0 KR |
1470 | the actual structure. It is assumed that str points to the equal sign |
1471 | in the definition, and it moves backward until it finds the start of the | |
1472 | name. If it finds a 0, then it knows that this structure def is in the | |
1473 | outermost level, and thus symbol_name points to the symbol name. */ | |
1474 | ||
be9618de KR |
1475 | static char * |
1476 | get_struct_name (str) | |
1477 | char *str; | |
1478 | { | |
1479 | char *pnt; | |
1480 | pnt = str; | |
1481 | while ((*pnt != ':') && (*pnt != '\0')) | |
1482 | pnt--; | |
1483 | if (*pnt == '\0') | |
f2224fe2 | 1484 | return (char *) symbol_name; |
be9618de KR |
1485 | *pnt-- = '\0'; |
1486 | while ((*pnt != ';') && (*pnt != '=')) | |
1487 | pnt--; | |
1488 | if (*pnt == ';') | |
1489 | return pnt + 1; | |
1490 | while ((*pnt < '0') || (*pnt > '9')) | |
1491 | pnt++; | |
1492 | while ((*pnt >= '0') && (*pnt <= '9')) | |
1493 | pnt++; | |
1494 | return pnt; | |
1495 | } | |
1496 | ||
d57bf0e0 KR |
1497 | |
1498 | /* Search symbol list for type number dbx_type. | |
1499 | Return a pointer to struct. */ | |
1500 | ||
be9618de KR |
1501 | static struct VMS_DBG_Symbol * |
1502 | find_symbol (dbx_type) | |
1503 | int dbx_type; | |
1504 | { | |
1505 | struct VMS_DBG_Symbol *spnt; | |
0509f064 | 1506 | |
ac24997f KR |
1507 | spnt = VMS_Symbol_type_list[SYMTYP_HASH (dbx_type)]; |
1508 | while (spnt) | |
be9618de KR |
1509 | { |
1510 | if (spnt->dbx_type == dbx_type) | |
1511 | break; | |
1512 | spnt = spnt->next; | |
c06e55d9 | 1513 | } |
0509f064 KR |
1514 | if (!spnt || spnt->advanced != ALIAS) |
1515 | return spnt; | |
ac24997f | 1516 | return find_symbol (spnt->type2); |
be9618de KR |
1517 | } |
1518 | ||
1519 | ||
0509f064 | 1520 | #if 0 /* obsolete */ |
be9618de KR |
1521 | /* this routine puts info into either Local or Asuffix, depending on the sign |
1522 | * of size. The reason is that it is easier to build the variable descriptor | |
1523 | * backwards, while the array descriptor is best built forwards. In the end | |
1524 | * they get put together, if there is not a struct/union/enum along the way | |
1525 | */ | |
8e86815b KR |
1526 | static void |
1527 | push (value, size1) | |
1528 | int value, size1; | |
be9618de | 1529 | { |
8e86815b | 1530 | if (size1 < 0) |
be9618de | 1531 | { |
8e86815b | 1532 | size1 = -size1; |
494a6c05 KR |
1533 | if (Lpnt < size1) |
1534 | { | |
1535 | overflow = 1; | |
1536 | Lpnt = 1; | |
1537 | return; | |
c06e55d9 | 1538 | } |
494a6c05 KR |
1539 | Lpnt -= size1; |
1540 | md_number_to_chars (&Local[Lpnt + 1], value, size1); | |
1541 | } | |
be9618de | 1542 | else |
494a6c05 KR |
1543 | { |
1544 | if (Apoint + size1 >= MAX_DEBUG_RECORD) | |
1545 | { | |
1546 | overflow = 1; | |
1547 | Apoint = MAX_DEBUG_RECORD - 1; | |
1548 | return; | |
c06e55d9 | 1549 | } |
494a6c05 KR |
1550 | md_number_to_chars (&Asuffix[Apoint], value, size1); |
1551 | Apoint += size1; | |
c06e55d9 | 1552 | } |
be9618de | 1553 | } |
0509f064 KR |
1554 | #endif |
1555 | ||
1556 | ||
1557 | static void | |
1558 | fpush (value, size) | |
1559 | int value, size; | |
1560 | { | |
1561 | if (Apoint + size >= MAX_DEBUG_RECORD) | |
1562 | { | |
1563 | overflow = 1; | |
1564 | Apoint = MAX_DEBUG_RECORD - 1; | |
1565 | return; | |
1566 | } | |
1567 | if (size == 1) | |
1568 | Asuffix[Apoint++] = (char) value; | |
1569 | else | |
1570 | { | |
1571 | md_number_to_chars (&Asuffix[Apoint], value, size); | |
1572 | Apoint += size; | |
1573 | } | |
1574 | } | |
1575 | ||
1576 | static void | |
1577 | rpush (value, size) | |
1578 | int value, size; | |
1579 | { | |
1580 | if (Lpnt < size) | |
1581 | { | |
1582 | overflow = 1; | |
1583 | Lpnt = 1; | |
1584 | return; | |
1585 | } | |
1586 | if (size == 1) | |
1587 | Local[Lpnt--] = (char) value; | |
1588 | else | |
1589 | { | |
1590 | Lpnt -= size; | |
1591 | md_number_to_chars (&Local[Lpnt + 1], value, size); | |
1592 | } | |
1593 | } | |
be9618de | 1594 | |
d57bf0e0 KR |
1595 | |
1596 | /* This routine generates the array descriptor for a given array. */ | |
1597 | ||
8e86815b | 1598 | static void |
be9618de KR |
1599 | array_suffix (spnt2) |
1600 | struct VMS_DBG_Symbol *spnt2; | |
1601 | { | |
1602 | struct VMS_DBG_Symbol *spnt; | |
1603 | struct VMS_DBG_Symbol *spnt1; | |
1604 | int rank; | |
1605 | int total_size; | |
8e86815b | 1606 | |
be9618de KR |
1607 | rank = 0; |
1608 | spnt = spnt2; | |
1609 | while (spnt->advanced != ARRAY) | |
1610 | { | |
1611 | spnt = find_symbol (spnt->type2); | |
d57bf0e0 | 1612 | if (!spnt) |
be9618de | 1613 | return; |
c06e55d9 | 1614 | } |
be9618de | 1615 | spnt1 = spnt; |
be9618de KR |
1616 | total_size = 1; |
1617 | while (spnt1->advanced == ARRAY) | |
1618 | { | |
1619 | rank++; | |
1620 | total_size *= (spnt1->index_max - spnt1->index_min + 1); | |
1621 | spnt1 = find_symbol (spnt1->type2); | |
c06e55d9 | 1622 | } |
be9618de | 1623 | total_size = total_size * spnt1->data_size; |
0509f064 | 1624 | fpush (spnt1->data_size, 2); /* element size */ |
c06e55d9 | 1625 | if (spnt1->VMS_type == DBG_S_C_ADVANCED_TYPE) |
0509f064 | 1626 | fpush (0, 1); |
be9618de | 1627 | else |
0509f064 KR |
1628 | fpush (spnt1->VMS_type, 1); /* element type */ |
1629 | fpush (DSC_K_CLASS_A, 1); /* descriptor class */ | |
1630 | fpush (0, 4); /* base address */ | |
1631 | fpush (0, 1); /* scale factor -- not applicable */ | |
1632 | fpush (0, 1); /* digit count -- not applicable */ | |
1633 | fpush (0xc0, 1); /* flags: multiplier block & bounds present */ | |
1634 | fpush (rank, 1); /* number of dimensions */ | |
1635 | fpush (total_size, 4); | |
1636 | fpush (0, 4); /* pointer to element [0][0]...[0] */ | |
be9618de KR |
1637 | spnt1 = spnt; |
1638 | while (spnt1->advanced == ARRAY) | |
1639 | { | |
0509f064 | 1640 | fpush (spnt1->index_max - spnt1->index_min + 1, 4); |
be9618de | 1641 | spnt1 = find_symbol (spnt1->type2); |
c06e55d9 | 1642 | } |
be9618de KR |
1643 | spnt1 = spnt; |
1644 | while (spnt1->advanced == ARRAY) | |
1645 | { | |
0509f064 KR |
1646 | fpush (spnt1->index_min, 4); |
1647 | fpush (spnt1->index_max, 4); | |
be9618de | 1648 | spnt1 = find_symbol (spnt1->type2); |
c06e55d9 | 1649 | } |
be9618de KR |
1650 | } |
1651 | ||
d57bf0e0 KR |
1652 | |
1653 | /* This routine generates the start of a variable descriptor based upon | |
1654 | a struct/union/enum that has yet to be defined. We define this spot as | |
1655 | a new location, and save four bytes for the address. When the struct is | |
1656 | finally defined, then we can go back and plug in the correct address. */ | |
1657 | ||
8e86815b | 1658 | static void |
be9618de KR |
1659 | new_forward_ref (dbx_type) |
1660 | int dbx_type; | |
1661 | { | |
1662 | struct forward_ref *fpnt; | |
c06e55d9 | 1663 | fpnt = (struct forward_ref *) xmalloc (sizeof (struct forward_ref)); |
be9618de KR |
1664 | fpnt->next = f_ref_root; |
1665 | f_ref_root = fpnt; | |
1666 | fpnt->dbx_type = dbx_type; | |
1667 | fpnt->struc_numb = ++structure_count; | |
1668 | fpnt->resolved = 'N'; | |
0509f064 | 1669 | rpush (DST_K_TS_IND, 1); /* indirect type specification */ |
be9618de | 1670 | total_len = 5; |
0509f064 | 1671 | rpush (total_len, 2); |
be9618de KR |
1672 | struct_number = -fpnt->struc_numb; |
1673 | } | |
1674 | ||
d57bf0e0 KR |
1675 | |
1676 | /* This routine generates the variable descriptor used to describe non-basic | |
1677 | variables. It calls itself recursively until it gets to the bottom of it | |
1678 | all, and then builds the descriptor backwards. It is easiest to do it | |
1679 | this way since we must periodically write length bytes, and it is easiest | |
1680 | if we know the value when it is time to write it. */ | |
1681 | ||
be9618de KR |
1682 | static int |
1683 | gen1 (spnt, array_suffix_len) | |
1684 | struct VMS_DBG_Symbol *spnt; | |
1685 | int array_suffix_len; | |
1686 | { | |
1687 | struct VMS_DBG_Symbol *spnt1; | |
1688 | int i; | |
8e86815b | 1689 | |
be9618de KR |
1690 | switch (spnt->advanced) |
1691 | { | |
1692 | case VOID: | |
0509f064 | 1693 | rpush (DBG_S_C_VOID, 1); |
be9618de | 1694 | total_len += 1; |
0509f064 | 1695 | rpush (total_len, 2); |
be9618de KR |
1696 | return 0; |
1697 | case BASIC: | |
1698 | case FUNCTION: | |
1699 | if (array_suffix_len == 0) | |
1700 | { | |
0509f064 KR |
1701 | rpush (spnt->VMS_type, 1); |
1702 | rpush (DBG_S_C_BASIC, 1); | |
be9618de | 1703 | total_len = 2; |
0509f064 | 1704 | rpush (total_len, 2); |
be9618de | 1705 | return 1; |
c06e55d9 | 1706 | } |
0509f064 KR |
1707 | rpush (0, 4); |
1708 | rpush (DST_K_VFLAGS_DSC, 1); | |
1709 | rpush (DST_K_TS_DSC, 1); /* descriptor type specification */ | |
be9618de KR |
1710 | total_len = -2; |
1711 | return 1; | |
1712 | case STRUCT: | |
1713 | case UNION: | |
1714 | case ENUM: | |
1715 | struct_number = spnt->struc_numb; | |
1716 | if (struct_number < 0) | |
1717 | { | |
1718 | new_forward_ref (spnt->dbx_type); | |
1719 | return 1; | |
1720 | } | |
0509f064 | 1721 | rpush (DBG_S_C_STRUCT, 1); |
be9618de | 1722 | total_len = 5; |
0509f064 | 1723 | rpush (total_len, 2); |
be9618de KR |
1724 | return 1; |
1725 | case POINTER: | |
1726 | spnt1 = find_symbol (spnt->type2); | |
1727 | i = 1; | |
a9918088 | 1728 | if (!spnt1) |
be9618de KR |
1729 | new_forward_ref (spnt->type2); |
1730 | else | |
1731 | i = gen1 (spnt1, 0); | |
1732 | if (i) | |
3c650d09 | 1733 | { /* (*void) is a special case, do not put pointer suffix */ |
0509f064 | 1734 | rpush (DBG_S_C_POINTER, 1); |
be9618de | 1735 | total_len += 3; |
0509f064 | 1736 | rpush (total_len, 2); |
c06e55d9 | 1737 | } |
be9618de KR |
1738 | return 1; |
1739 | case ARRAY: | |
1740 | spnt1 = spnt; | |
1741 | while (spnt1->advanced == ARRAY) | |
1742 | { | |
1743 | spnt1 = find_symbol (spnt1->type2); | |
a9918088 | 1744 | if (!spnt1) |
be9618de | 1745 | { |
48401fcf | 1746 | as_tsktsk (_("debugger forward reference error, dbx type %d"), |
703139a8 | 1747 | spnt->type2); |
8e86815b | 1748 | return 0; |
be9618de | 1749 | } |
c06e55d9 | 1750 | } |
be9618de KR |
1751 | /* It is too late to generate forward references, so the user gets a message. |
1752 | * This should only happen on a compiler error */ | |
8e86815b | 1753 | (void) gen1 (spnt1, 1); |
be9618de KR |
1754 | i = Apoint; |
1755 | array_suffix (spnt); | |
1756 | array_suffix_len = Apoint - i; | |
1757 | switch (spnt1->advanced) | |
1758 | { | |
1759 | case BASIC: | |
1760 | case FUNCTION: | |
1761 | break; | |
1762 | default: | |
0509f064 | 1763 | rpush (0, 2); |
be9618de | 1764 | total_len += 2; |
0509f064 KR |
1765 | rpush (total_len, 2); |
1766 | rpush (DST_K_VFLAGS_DSC, 1); | |
1767 | rpush (1, 1); /* flags: element value spec included */ | |
1768 | rpush (1, 1); /* one dimension */ | |
1769 | rpush (DBG_S_C_COMPLEX_ARRAY, 1); | |
c06e55d9 | 1770 | } |
be9618de | 1771 | total_len += array_suffix_len + 8; |
0509f064 | 1772 | rpush (total_len, 2); |
8e86815b KR |
1773 | break; |
1774 | default: /* lint suppression */ | |
1775 | break; | |
c06e55d9 | 1776 | } |
8e86815b | 1777 | return 0; |
be9618de KR |
1778 | } |
1779 | ||
d57bf0e0 | 1780 | |
be9618de | 1781 | /* This generates a suffix for a variable. If it is not a defined type yet, |
d57bf0e0 KR |
1782 | then dbx_type contains the type we are expecting so we can generate a |
1783 | forward reference. This calls gen1 to build most of the descriptor, and | |
1784 | then it puts the icing on at the end. It then dumps whatever is needed | |
1785 | to get a complete descriptor (i.e. struct reference, array suffix). */ | |
1786 | ||
8e86815b | 1787 | static void |
be9618de KR |
1788 | generate_suffix (spnt, dbx_type) |
1789 | struct VMS_DBG_Symbol *spnt; | |
1790 | int dbx_type; | |
1791 | { | |
4b18b7cd | 1792 | static const char pvoid[6] = { |
a9918088 KR |
1793 | 5, /* record.length == 5 */ |
1794 | DST_K_TYPSPEC, /* record.type == 1 (type specification) */ | |
1795 | 0, /* name.length == 0, no name follows */ | |
1796 | 1, 0, /* type.length == 1 {2 bytes, little endian} */ | |
1797 | DBG_S_C_VOID /* type.type == 5 (pointer to unspecified) */ | |
1798 | }; | |
be9618de | 1799 | int i; |
8e86815b | 1800 | |
be9618de KR |
1801 | Apoint = 0; |
1802 | Lpnt = MAX_DEBUG_RECORD - 1; | |
1803 | total_len = 0; | |
1804 | struct_number = 0; | |
1805 | overflow = 0; | |
a9918088 | 1806 | if (!spnt) |
be9618de KR |
1807 | new_forward_ref (dbx_type); |
1808 | else | |
1809 | { | |
c06e55d9 | 1810 | if (spnt->VMS_type != DBG_S_C_ADVANCED_TYPE) |
8e86815b | 1811 | return; /* no suffix needed */ |
be9618de | 1812 | gen1 (spnt, 0); |
c06e55d9 | 1813 | } |
0509f064 KR |
1814 | rpush (0, 1); /* no name (len==0) */ |
1815 | rpush (DST_K_TYPSPEC, 1); | |
be9618de | 1816 | total_len += 4; |
0509f064 | 1817 | rpush (total_len, 1); |
d57bf0e0 KR |
1818 | /* If the variable descriptor overflows the record, output a descriptor |
1819 | for a pointer to void. */ | |
be9618de KR |
1820 | if ((total_len >= MAX_DEBUG_RECORD) || overflow) |
1821 | { | |
48401fcf | 1822 | as_warn (_("Variable descriptor %d too complicated. Defined as `void *'."), |
3c650d09 | 1823 | spnt->dbx_type); |
be9618de KR |
1824 | VMS_Store_Immediate_Data (pvoid, 6, OBJ_S_C_DBG); |
1825 | return; | |
c06e55d9 | 1826 | } |
be9618de KR |
1827 | i = 0; |
1828 | while (Lpnt < MAX_DEBUG_RECORD - 1) | |
1829 | Local[i++] = Local[++Lpnt]; | |
1830 | Lpnt = i; | |
d57bf0e0 | 1831 | /* we use this for reference to structure that has already been defined */ |
be9618de KR |
1832 | if (struct_number > 0) |
1833 | { | |
1834 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); | |
1835 | Lpnt = 0; | |
1836 | VMS_Store_Struct (struct_number); | |
c06e55d9 | 1837 | } |
d57bf0e0 KR |
1838 | /* We use this for a forward reference to a structure that has yet to |
1839 | be defined. We store four bytes of zero to make room for the actual | |
1840 | address once it is known. */ | |
be9618de KR |
1841 | if (struct_number < 0) |
1842 | { | |
1843 | struct_number = -struct_number; | |
1844 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); | |
1845 | Lpnt = 0; | |
1846 | VMS_Def_Struct (struct_number); | |
ac24997f | 1847 | COPY_LONG (&Local[Lpnt], 0L); |
a9918088 | 1848 | Lpnt += 4; |
be9618de KR |
1849 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); |
1850 | Lpnt = 0; | |
c06e55d9 | 1851 | } |
be9618de KR |
1852 | i = 0; |
1853 | while (i < Apoint) | |
1854 | Local[Lpnt++] = Asuffix[i++]; | |
1855 | if (Lpnt != 0) | |
1856 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); | |
1857 | Lpnt = 0; | |
1858 | } | |
1859 | ||
d57bf0e0 | 1860 | |
a9918088 KR |
1861 | /* "novel length" type doesn't work for simple atomic types */ |
1862 | #define USE_BITSTRING_DESCRIPTOR(t) ((t)->advanced == BASIC) | |
1863 | #undef SETUP_BASIC_TYPES | |
1864 | ||
d57bf0e0 KR |
1865 | /* This routine generates a type description for a bitfield. */ |
1866 | ||
a9918088 KR |
1867 | static void |
1868 | bitfield_suffix (spnt, width) | |
1869 | struct VMS_DBG_Symbol *spnt; | |
1870 | int width; | |
1871 | { | |
1872 | Local[Lpnt++] = 13; /* rec.len==13 */ | |
1873 | Local[Lpnt++] = DST_K_TYPSPEC; /* a type specification record */ | |
1874 | Local[Lpnt++] = 0; /* not named */ | |
ac24997f | 1875 | COPY_SHORT (&Local[Lpnt], 9); /* typ.len==9 */ |
a9918088 KR |
1876 | Lpnt += 2; |
1877 | Local[Lpnt++] = DST_K_TS_NOV_LENG; /* This type is a "novel length" | |
1878 | incarnation of some other type. */ | |
ac24997f | 1879 | COPY_LONG (&Local[Lpnt], width); /* size in bits == novel length */ |
a9918088 KR |
1880 | Lpnt += 4; |
1881 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); | |
1882 | Lpnt = 0; | |
1883 | /* assert( spnt->struc_numb > 0 ); */ | |
1884 | VMS_Store_Struct (spnt->struc_numb); /* output 4 more bytes */ | |
1885 | } | |
1886 | ||
d57bf0e0 | 1887 | |
a9918088 KR |
1888 | /* Formally define a builtin type, so that it can serve as the target of |
1889 | an indirect reference. It makes bitfield_suffix() easier by avoiding | |
1890 | the need to use a forward reference for the first occurrence of each | |
1891 | type used in a bitfield. */ | |
d57bf0e0 | 1892 | |
a9918088 KR |
1893 | static void |
1894 | setup_basic_type (spnt) | |
1895 | struct VMS_DBG_Symbol *spnt; | |
1896 | { | |
1897 | #ifdef SETUP_BASIC_TYPES | |
1898 | /* This would be very useful if "novel length" fields actually worked | |
1899 | with basic types like they do with enumerated types. However, | |
1900 | they do not, so this isn't worth doing just so that you can use | |
1901 | EXAMINE/TYPE=(__long_long_int) instead of EXAMINE/QUAD. */ | |
1902 | char *p; | |
1903 | #ifndef SETUP_SYNONYM_TYPES | |
1904 | /* This determines whether compatible things like `int' and `long int' | |
1905 | ought to have distinct type records rather than sharing one. */ | |
1906 | struct VMS_DBG_Symbol *spnt2; | |
1907 | ||
1908 | /* first check whether this type has already been seen by another name */ | |
ac24997f | 1909 | for (spnt2 = VMS_Symbol_type_list[SYMTYP_HASH (spnt->VMS_type)]; |
b003a2d9 KR |
1910 | spnt2; |
1911 | spnt2 = spnt2->next) | |
a9918088 KR |
1912 | if (spnt2 != spnt && spnt2->VMS_type == spnt->VMS_type) |
1913 | { | |
1914 | spnt->struc_numb = spnt2->struc_numb; | |
1915 | return; | |
1916 | } | |
1917 | #endif | |
1918 | ||
1919 | /* `structure number' doesn't really mean `structure'; it means an index | |
1920 | into a linker maintained set of saved locations which can be referenced | |
1921 | again later. */ | |
1922 | spnt->struc_numb = ++structure_count; | |
1923 | VMS_Def_Struct (spnt->struc_numb); /* remember where this type lives */ | |
1924 | /* define the simple scalar type */ | |
1925 | Local[Lpnt++] = 6 + strlen (symbol_name) + 2; /* rec.len */ | |
1926 | Local[Lpnt++] = DST_K_TYPSPEC; /* rec.typ==type specification */ | |
1927 | Local[Lpnt++] = strlen (symbol_name) + 2; | |
1928 | Local[Lpnt++] = '_'; /* prefix name with "__" */ | |
1929 | Local[Lpnt++] = '_'; | |
1930 | for (p = symbol_name; *p; p++) | |
1931 | Local[Lpnt++] = *p == ' ' ? '_' : *p; | |
ac24997f | 1932 | COPY_SHORT (&Local[Lpnt], 2); /* typ.len==2 */ |
a9918088 KR |
1933 | Lpnt += 2; |
1934 | Local[Lpnt++] = DST_K_TS_ATOM; /* typ.kind is simple type */ | |
1935 | Local[Lpnt++] = spnt->VMS_type; /* typ.type */ | |
1936 | VMS_Store_Immediate_Data (Local, Lpnt, OBJ_S_C_DBG); | |
1937 | Lpnt = 0; | |
1938 | #endif /* SETUP_BASIC_TYPES */ | |
3c650d09 | 1939 | return; |
a9918088 KR |
1940 | } |
1941 | ||
d57bf0e0 | 1942 | |
a9918088 | 1943 | /* This routine generates a symbol definition for a C symbol for the debugger. |
d57bf0e0 KR |
1944 | It takes a psect and offset for global symbols; if psect < 0, then this is |
1945 | a local variable and the offset is relative to FP. In this case it can | |
1946 | be either a variable (Offset < 0) or a parameter (Offset > 0). */ | |
1947 | ||
8e86815b | 1948 | static void |
be9618de KR |
1949 | VMS_DBG_record (spnt, Psect, Offset, Name) |
1950 | struct VMS_DBG_Symbol *spnt; | |
1951 | int Psect; | |
1952 | int Offset; | |
1953 | char *Name; | |
1954 | { | |
be9618de | 1955 | char *Name_pnt; |
a9918088 | 1956 | int len; |
be9618de | 1957 | int i = 0; |
a9918088 | 1958 | |
8e86815b KR |
1959 | /* if there are bad characters in name, convert them */ |
1960 | Name_pnt = fix_name (Name); | |
1961 | ||
ac24997f | 1962 | len = strlen (Name_pnt); |
be9618de KR |
1963 | if (Psect < 0) |
1964 | { /* this is a local variable, referenced to SP */ | |
a9918088 | 1965 | Local[i++] = 7 + len; |
be9618de | 1966 | Local[i++] = spnt->VMS_type; |
a9918088 | 1967 | Local[i++] = (Offset > 0) ? DBG_C_FUNCTION_PARAM : DBG_C_LOCAL_SYM; |
494a6c05 KR |
1968 | COPY_LONG (&Local[i], Offset); |
1969 | i += 4; | |
be9618de KR |
1970 | } |
1971 | else | |
1972 | { | |
a9918088 | 1973 | Local[i++] = 7 + len; |
be9618de | 1974 | Local[i++] = spnt->VMS_type; |
a9918088 | 1975 | Local[i++] = DST_K_VALKIND_ADDR; |
be9618de KR |
1976 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); |
1977 | i = 0; | |
1978 | VMS_Set_Data (Psect, Offset, OBJ_S_C_DBG, 0); | |
1979 | } | |
a9918088 | 1980 | Local[i++] = len; |
be9618de KR |
1981 | while (*Name_pnt != '\0') |
1982 | Local[i++] = *Name_pnt++; | |
1983 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
1984 | if (spnt->VMS_type == DBG_S_C_ADVANCED_TYPE) | |
1985 | generate_suffix (spnt, 0); | |
1986 | } | |
1987 | ||
1988 | ||
1989 | /* This routine parses the stabs entries in order to make the definition | |
d57bf0e0 KR |
1990 | for the debugger of local symbols and function parameters. */ |
1991 | ||
8e86815b | 1992 | static void |
be9618de KR |
1993 | VMS_local_stab_Parse (sp) |
1994 | symbolS *sp; | |
1995 | { | |
d57bf0e0 | 1996 | struct VMS_DBG_Symbol *spnt; |
be9618de KR |
1997 | char *pnt; |
1998 | char *pnt1; | |
1999 | char *str; | |
be9618de | 2000 | int dbx_type; |
8e86815b | 2001 | |
be9618de KR |
2002 | dbx_type = 0; |
2003 | str = S_GET_NAME (sp); | |
2004 | pnt = (char *) strchr (str, ':'); | |
d57bf0e0 | 2005 | if (!pnt) |
be9618de KR |
2006 | return; /* no colon present */ |
2007 | pnt1 = pnt++; /* save this for later, and skip colon */ | |
2008 | if (*pnt == 'c') | |
8e86815b KR |
2009 | return; /* ignore static constants */ |
2010 | ||
be9618de KR |
2011 | /* there is one little catch that we must be aware of. Sometimes function |
2012 | * parameters are optimized into registers, and the compiler, in its infiite | |
2013 | * wisdom outputs stabs records for *both*. In general we want to use the | |
2014 | * register if it is present, so we must search the rest of the symbols for | |
2015 | * this function to see if this parameter is assigned to a register. | |
2016 | */ | |
2017 | { | |
d57bf0e0 | 2018 | symbolS *sp1; |
be9618de KR |
2019 | char *str1; |
2020 | char *pnt2; | |
d57bf0e0 | 2021 | |
be9618de KR |
2022 | if (*pnt == 'p') |
2023 | { | |
2024 | for (sp1 = symbol_next (sp); sp1; sp1 = symbol_next (sp1)) | |
2025 | { | |
2026 | if (!S_IS_DEBUG (sp1)) | |
2027 | continue; | |
2028 | if (S_GET_RAW_TYPE (sp1) == N_FUN) | |
2029 | { | |
d57bf0e0 KR |
2030 | pnt2 = (char *) strchr (S_GET_NAME (sp1), ':') + 1; |
2031 | if (*pnt2 == 'F' || *pnt2 == 'f') | |
2032 | break; | |
c06e55d9 | 2033 | } |
be9618de KR |
2034 | if (S_GET_RAW_TYPE (sp1) != N_RSYM) |
2035 | continue; | |
2036 | str1 = S_GET_NAME (sp1); /* and get the name */ | |
2037 | pnt2 = str; | |
2038 | while (*pnt2 != ':') | |
2039 | { | |
2040 | if (*pnt2 != *str1) | |
2041 | break; | |
2042 | pnt2++; | |
2043 | str1++; | |
c06e55d9 | 2044 | } |
d57bf0e0 KR |
2045 | if (*str1 == ':' && *pnt2 == ':') |
2046 | return; /* they are the same! lets skip this one */ | |
c06e55d9 | 2047 | } /* for */ |
be9618de | 2048 | pnt++; /* skip p in case no register */ |
c06e55d9 KR |
2049 | } /* if */ |
2050 | } /* p block */ | |
d57bf0e0 | 2051 | |
be9618de KR |
2052 | pnt = cvt_integer (pnt, &dbx_type); |
2053 | spnt = find_symbol (dbx_type); | |
a9918088 | 2054 | if (!spnt) |
8e86815b | 2055 | return; /*Dunno what this is*/ |
be9618de KR |
2056 | *pnt1 = '\0'; |
2057 | VMS_DBG_record (spnt, -1, S_GET_VALUE (sp), str); | |
2058 | *pnt1 = ':'; /* and restore the string */ | |
8e86815b | 2059 | return; |
be9618de KR |
2060 | } |
2061 | ||
d57bf0e0 KR |
2062 | |
2063 | /* This routine parses a stabs entry to find the information required | |
2064 | to define a variable. It is used for global and static variables. | |
2065 | Basically we need to know the address of the symbol. With older | |
2066 | versions of the compiler, const symbols are treated differently, in | |
2067 | that if they are global they are written into the text psect. The | |
2068 | global symbol entry for such a const is actually written as a program | |
2069 | entry point (Yuk!!), so if we cannot find a symbol in the list of | |
2070 | psects, we must search the entry points as well. static consts are | |
2071 | even harder, since they are never assigned a memory address. The | |
2072 | compiler passes a stab to tell us the value, but I am not sure what | |
2073 | to do with it. */ | |
be9618de | 2074 | |
8e86815b | 2075 | static void |
be9618de KR |
2076 | VMS_stab_parse (sp, expected_type, type1, type2, Text_Psect) |
2077 | symbolS *sp; | |
4b18b7cd | 2078 | int expected_type; /* char */ |
be9618de KR |
2079 | int type1, type2, Text_Psect; |
2080 | { | |
2081 | char *pnt; | |
2082 | char *pnt1; | |
2083 | char *str; | |
2084 | symbolS *sp1; | |
2085 | struct VMS_DBG_Symbol *spnt; | |
2086 | struct VMS_Symbol *vsp; | |
2087 | int dbx_type; | |
0509f064 | 2088 | |
be9618de KR |
2089 | dbx_type = 0; |
2090 | str = S_GET_NAME (sp); | |
2091 | pnt = (char *) strchr (str, ':'); | |
d57bf0e0 | 2092 | if (!pnt) |
be9618de KR |
2093 | return; /* no colon present */ |
2094 | pnt1 = pnt; /* save this for later*/ | |
2095 | pnt++; | |
2096 | if (*pnt == expected_type) | |
2097 | { | |
2098 | pnt = cvt_integer (pnt + 1, &dbx_type); | |
2099 | spnt = find_symbol (dbx_type); | |
d57bf0e0 | 2100 | if (!spnt) |
8e86815b | 2101 | return; /*Dunno what this is*/ |
d57bf0e0 KR |
2102 | /* |
2103 | * Now we need to search the symbol table to find the psect and | |
2104 | * offset for this variable. | |
2105 | */ | |
be9618de KR |
2106 | *pnt1 = '\0'; |
2107 | vsp = VMS_Symbols; | |
d57bf0e0 | 2108 | while (vsp) |
be9618de KR |
2109 | { |
2110 | pnt = S_GET_NAME (vsp->Symbol); | |
d57bf0e0 KR |
2111 | if (pnt && *pnt++ == '_' |
2112 | /* make sure name is the same and symbol type matches */ | |
2113 | && strcmp (pnt, str) == 0 | |
2114 | && (S_GET_RAW_TYPE (vsp->Symbol) == type1 | |
2115 | || S_GET_RAW_TYPE (vsp->Symbol) == type2)) | |
2116 | break; | |
be9618de | 2117 | vsp = vsp->Next; |
c06e55d9 | 2118 | } |
d57bf0e0 | 2119 | if (vsp) |
be9618de KR |
2120 | { |
2121 | VMS_DBG_record (spnt, vsp->Psect_Index, vsp->Psect_Offset, str); | |
2122 | *pnt1 = ':'; /* and restore the string */ | |
8e86815b | 2123 | return; |
c06e55d9 | 2124 | } |
d57bf0e0 KR |
2125 | /* The symbol was not in the symbol list, but it may be an |
2126 | "entry point" if it was a constant. */ | |
be9618de KR |
2127 | for (sp1 = symbol_rootP; sp1; sp1 = symbol_next (sp1)) |
2128 | { | |
2129 | /* | |
2130 | * Dispatch on STAB type | |
2131 | */ | |
2132 | if (S_IS_DEBUG (sp1) || (S_GET_TYPE (sp1) != N_TEXT)) | |
2133 | continue; | |
2134 | pnt = S_GET_NAME (sp1); | |
2135 | if (*pnt == '_') | |
2136 | pnt++; | |
2137 | if (strcmp (pnt, str) == 0) | |
2138 | { | |
2139 | if (!gave_compiler_message && expected_type == 'G') | |
2140 | { | |
48401fcf | 2141 | char *long_const_msg = _("\ |
3c650d09 KR |
2142 | ***Warning - the assembly code generated by the compiler has placed \n\ |
2143 | global constant(s) in the text psect. These will not be available to \n\ | |
2144 | other modules, since this is not the correct way to handle this. You \n\ | |
2145 | have two options: 1) get a patched compiler that does not put global \n\ | |
2146 | constants in the text psect, or 2) remove the 'const' keyword from \n\ | |
2147 | definitions of global variables in your source module(s). Don't say \n\ | |
48401fcf | 2148 | I didn't warn you! \n"); |
3c650d09 KR |
2149 | |
2150 | as_tsktsk (long_const_msg); | |
be9618de | 2151 | gave_compiler_message = 1; |
c06e55d9 | 2152 | } |
be9618de KR |
2153 | VMS_DBG_record (spnt, |
2154 | Text_Psect, | |
2155 | S_GET_VALUE (sp1), | |
2156 | str); | |
2157 | *pnt1 = ':'; | |
d57bf0e0 KR |
2158 | /* fool assembler to not output this as a routine in the TBT */ |
2159 | pnt1 = S_GET_NAME (sp1); | |
2160 | *pnt1 = 'L'; | |
2161 | S_SET_NAME (sp1, pnt1); | |
8e86815b | 2162 | return; |
c06e55d9 KR |
2163 | } |
2164 | } | |
2165 | } | |
be9618de | 2166 | *pnt1 = ':'; /* and restore the string */ |
8e86815b | 2167 | return; |
be9618de KR |
2168 | } |
2169 | ||
70aeac05 KR |
2170 | |
2171 | /* Simpler interfaces into VMS_stab_parse(). */ | |
2172 | ||
8e86815b | 2173 | static void |
be9618de KR |
2174 | VMS_GSYM_Parse (sp, Text_Psect) |
2175 | symbolS *sp; | |
2176 | int Text_Psect; | |
2177 | { /* Global variables */ | |
2178 | VMS_stab_parse (sp, 'G', (N_UNDF | N_EXT), (N_DATA | N_EXT), Text_Psect); | |
2179 | } | |
2180 | ||
8e86815b | 2181 | static void |
be9618de KR |
2182 | VMS_LCSYM_Parse (sp, Text_Psect) |
2183 | symbolS *sp; | |
2184 | int Text_Psect; | |
2185 | { /* Static symbols - uninitialized */ | |
2186 | VMS_stab_parse (sp, 'S', N_BSS, -1, Text_Psect); | |
2187 | } | |
2188 | ||
8e86815b | 2189 | static void |
be9618de KR |
2190 | VMS_STSYM_Parse (sp, Text_Psect) |
2191 | symbolS *sp; | |
2192 | int Text_Psect; | |
2193 | { /* Static symbols - initialized */ | |
2194 | VMS_stab_parse (sp, 'S', N_DATA, -1, Text_Psect); | |
2195 | } | |
2196 | ||
2197 | ||
70aeac05 KR |
2198 | /* For register symbols, we must figure out what range of addresses |
2199 | within the psect are valid. We will use the brackets in the stab | |
2200 | directives to give us guidance as to the PC range that this variable | |
2201 | is in scope. I am still not completely comfortable with this but | |
2202 | as I learn more, I seem to get a better handle on what is going on. | |
2203 | Caveat Emptor. */ | |
2204 | ||
8e86815b | 2205 | static void |
be9618de KR |
2206 | VMS_RSYM_Parse (sp, Current_Routine, Text_Psect) |
2207 | symbolS *sp, *Current_Routine; | |
2208 | int Text_Psect; | |
2209 | { | |
70aeac05 KR |
2210 | symbolS *symbolP; |
2211 | struct VMS_DBG_Symbol *spnt; | |
be9618de KR |
2212 | char *pnt; |
2213 | char *pnt1; | |
2214 | char *str; | |
2215 | int dbx_type; | |
a9918088 | 2216 | int len; |
be9618de KR |
2217 | int i = 0; |
2218 | int bcnt = 0; | |
2219 | int Min_Offset = -1; /* min PC of validity */ | |
2220 | int Max_Offset = 0; /* max PC of validity */ | |
a9918088 | 2221 | |
be9618de KR |
2222 | for (symbolP = sp; symbolP; symbolP = symbol_next (symbolP)) |
2223 | { | |
2224 | /* | |
2225 | * Dispatch on STAB type | |
2226 | */ | |
2227 | switch (S_GET_RAW_TYPE (symbolP)) | |
2228 | { | |
2229 | case N_LBRAC: | |
2230 | if (bcnt++ == 0) | |
2231 | Min_Offset = S_GET_VALUE (symbolP); | |
2232 | break; | |
2233 | case N_RBRAC: | |
2234 | if (--bcnt == 0) | |
b003a2d9 | 2235 | Max_Offset = S_GET_VALUE (symbolP) - 1; |
be9618de KR |
2236 | break; |
2237 | } | |
2238 | if ((Min_Offset != -1) && (bcnt == 0)) | |
2239 | break; | |
2240 | if (S_GET_RAW_TYPE (symbolP) == N_FUN) | |
2241 | { | |
70aeac05 | 2242 | pnt = (char *) strchr (S_GET_NAME (symbolP), ':') + 1; |
be9618de | 2243 | if (*pnt == 'F' || *pnt == 'f') break; |
c06e55d9 | 2244 | } |
be9618de | 2245 | } |
b003a2d9 | 2246 | |
70aeac05 KR |
2247 | /* Check to see that the addresses were defined. If not, then there |
2248 | were no brackets in the function, and we must try to search for | |
2249 | the next function. Since functions can be in any order, we should | |
2250 | search all of the symbol list to find the correct ending address. */ | |
be9618de KR |
2251 | if (Min_Offset == -1) |
2252 | { | |
2253 | int Max_Source_Offset; | |
2254 | int This_Offset; | |
70aeac05 | 2255 | |
be9618de | 2256 | Min_Offset = S_GET_VALUE (sp); |
70aeac05 | 2257 | Max_Source_Offset = Min_Offset; /* just in case no N_SLINEs found */ |
be9618de | 2258 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) |
70aeac05 KR |
2259 | switch (S_GET_RAW_TYPE (symbolP)) |
2260 | { | |
2261 | case N_TEXT | N_EXT: | |
2262 | This_Offset = S_GET_VALUE (symbolP); | |
2263 | if (This_Offset > Min_Offset && This_Offset < Max_Offset) | |
2264 | Max_Offset = This_Offset; | |
2265 | break; | |
2266 | case N_SLINE: | |
2267 | This_Offset = S_GET_VALUE (symbolP); | |
2268 | if (This_Offset > Max_Source_Offset) | |
2269 | Max_Source_Offset = This_Offset; | |
2270 | break; | |
2271 | } | |
2272 | /* If this is the last routine, then we use the PC of the last source | |
2273 | line as a marker of the max PC for which this reg is valid. */ | |
be9618de KR |
2274 | if (Max_Offset == 0x7fffffff) |
2275 | Max_Offset = Max_Source_Offset; | |
c06e55d9 | 2276 | } |
70aeac05 | 2277 | |
be9618de KR |
2278 | dbx_type = 0; |
2279 | str = S_GET_NAME (sp); | |
70aeac05 | 2280 | if ((pnt = (char *) strchr (str, ':')) == 0) |
be9618de KR |
2281 | return; /* no colon present */ |
2282 | pnt1 = pnt; /* save this for later*/ | |
2283 | pnt++; | |
2284 | if (*pnt != 'r') | |
8e86815b | 2285 | return; |
be9618de KR |
2286 | pnt = cvt_integer (pnt + 1, &dbx_type); |
2287 | spnt = find_symbol (dbx_type); | |
a9918088 | 2288 | if (!spnt) |
8e86815b | 2289 | return; /*Dunno what this is yet*/ |
be9618de KR |
2290 | *pnt1 = '\0'; |
2291 | pnt = fix_name (S_GET_NAME (sp)); /* if there are bad characters in name, convert them */ | |
ac24997f | 2292 | len = strlen (pnt); |
a9918088 | 2293 | Local[i++] = 25 + len; |
be9618de | 2294 | Local[i++] = spnt->VMS_type; |
a9918088 | 2295 | Local[i++] = DST_K_VFLAGS_TVS; /* trailing value specified */ |
ac24997f | 2296 | COPY_LONG (&Local[i], 1 + len); /* relative offset, beyond name */ |
a9918088 KR |
2297 | i += 4; |
2298 | Local[i++] = len; /* name length (ascic prefix) */ | |
be9618de KR |
2299 | while (*pnt != '\0') |
2300 | Local[i++] = *pnt++; | |
a9918088 | 2301 | Local[i++] = DST_K_VS_FOLLOWS; /* value specification follows */ |
ac24997f | 2302 | COPY_SHORT (&Local[i], 15); /* length of rest of record */ |
a9918088 KR |
2303 | i += 2; |
2304 | Local[i++] = DST_K_VS_ALLOC_SPLIT; /* split lifetime */ | |
2305 | Local[i++] = 1; /* one binding follows */ | |
be9618de KR |
2306 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); |
2307 | i = 0; | |
2308 | VMS_Set_Data (Text_Psect, Min_Offset, OBJ_S_C_DBG, 1); | |
2309 | VMS_Set_Data (Text_Psect, Max_Offset, OBJ_S_C_DBG, 1); | |
a9918088 | 2310 | Local[i++] = DST_K_VALKIND_REG; /* nested value spec */ |
ac24997f | 2311 | COPY_LONG (&Local[i], S_GET_VALUE (sp)); |
a9918088 | 2312 | i += 4; |
be9618de KR |
2313 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); |
2314 | *pnt1 = ':'; | |
2315 | if (spnt->VMS_type == DBG_S_C_ADVANCED_TYPE) | |
2316 | generate_suffix (spnt, 0); | |
2317 | } | |
2318 | ||
70aeac05 KR |
2319 | |
2320 | /* This function examines a structure definition, checking all of the elements | |
2321 | to make sure that all of them are fully defined. The only thing that we | |
2322 | kick out are arrays of undefined structs, since we do not know how big | |
2323 | they are. All others we can handle with a normal forward reference. */ | |
2324 | ||
be9618de KR |
2325 | static int |
2326 | forward_reference (pnt) | |
2327 | char *pnt; | |
2328 | { | |
70aeac05 | 2329 | struct VMS_DBG_Symbol *spnt, *spnt1; |
be9618de | 2330 | int i; |
70aeac05 | 2331 | |
be9618de KR |
2332 | pnt = cvt_integer (pnt + 1, &i); |
2333 | if (*pnt == ';') | |
2334 | return 0; /* no forward references */ | |
2335 | do | |
2336 | { | |
2337 | pnt = (char *) strchr (pnt, ':'); | |
2338 | pnt = cvt_integer (pnt + 1, &i); | |
2339 | spnt = find_symbol (i); | |
70aeac05 | 2340 | while (spnt && (spnt->advanced == POINTER || spnt->advanced == ARRAY)) |
be9618de | 2341 | { |
be9618de | 2342 | spnt1 = find_symbol (spnt->type2); |
70aeac05 | 2343 | if (spnt->advanced == ARRAY && !spnt1) |
be9618de | 2344 | return 1; |
be9618de | 2345 | spnt = spnt1; |
c06e55d9 | 2346 | } |
be9618de KR |
2347 | pnt = cvt_integer (pnt + 1, &i); |
2348 | pnt = cvt_integer (pnt + 1, &i); | |
70aeac05 | 2349 | } while (*++pnt != ';'); |
be9618de KR |
2350 | return 0; /* no forward refences found */ |
2351 | } | |
2352 | ||
70aeac05 KR |
2353 | |
2354 | /* Used to check a single element of a structure on the final pass. */ | |
494a6c05 KR |
2355 | |
2356 | static int | |
2357 | final_forward_reference (spnt) | |
4b18b7cd | 2358 | struct VMS_DBG_Symbol *spnt; |
494a6c05 | 2359 | { |
a9918088 KR |
2360 | struct VMS_DBG_Symbol *spnt1; |
2361 | ||
2362 | while (spnt && (spnt->advanced == POINTER || spnt->advanced == ARRAY)) | |
2363 | { | |
ac24997f | 2364 | spnt1 = find_symbol (spnt->type2); |
70aeac05 KR |
2365 | if (spnt->advanced == ARRAY && !spnt1) |
2366 | return 1; | |
a9918088 KR |
2367 | spnt = spnt1; |
2368 | } | |
2369 | return 0; /* no forward refences found */ | |
494a6c05 KR |
2370 | } |
2371 | ||
70aeac05 KR |
2372 | |
2373 | /* This routine parses the stabs directives to find any definitions of dbx | |
2374 | type numbers. It makes a note of all of them, creating a structure | |
2375 | element of VMS_DBG_Symbol that describes it. This also generates the | |
2376 | info for the debugger that describes the struct/union/enum, so that | |
2377 | further references to these data types will be by number | |
2378 | ||
2379 | We have to process pointers right away, since there can be references | |
2380 | to them later in the same stabs directive. We cannot have forward | |
2381 | references to pointers, (but we can have a forward reference to a | |
2382 | pointer to a structure/enum/union) and this is why we process them | |
2383 | immediately. After we process the pointer, then we search for defs | |
2384 | that are nested even deeper. | |
2385 | ||
2386 | 8/15/92: We have to process arrays right away too, because there can | |
2387 | be multiple references to identical array types in one structure | |
2388 | definition, and only the first one has the definition. */ | |
2389 | ||
be9618de KR |
2390 | static int |
2391 | VMS_typedef_parse (str) | |
2392 | char *str; | |
2393 | { | |
2394 | char *pnt; | |
2395 | char *pnt1; | |
f2224fe2 | 2396 | const char *pnt2; |
be9618de KR |
2397 | int i; |
2398 | int dtype; | |
2399 | struct forward_ref *fpnt; | |
a9918088 | 2400 | int i1, i2, i3, len; |
be9618de KR |
2401 | struct VMS_DBG_Symbol *spnt; |
2402 | struct VMS_DBG_Symbol *spnt1; | |
a9918088 | 2403 | |
70aeac05 | 2404 | /* check for any nested def's */ |
be9618de | 2405 | pnt = (char *) strchr (str + 1, '='); |
70aeac05 KR |
2406 | if (pnt && str[1] != '*' && (str[1] != 'a' || str[2] != 'r') |
2407 | && VMS_typedef_parse (pnt) == 1) | |
2408 | return 1; | |
2409 | /* now find dbx_type of entry */ | |
be9618de KR |
2410 | pnt = str - 1; |
2411 | if (*pnt == 'c') | |
2412 | { /* check for static constants */ | |
2413 | *str = '\0'; /* for now we ignore them */ | |
2414 | return 0; | |
c06e55d9 | 2415 | } |
be9618de KR |
2416 | while ((*pnt <= '9') && (*pnt >= '0')) |
2417 | pnt--; | |
2418 | pnt++; /* and get back to the number */ | |
2419 | cvt_integer (pnt, &i1); | |
2420 | spnt = find_symbol (i1); | |
70aeac05 | 2421 | /* first see if this has been defined already, due to forward reference */ |
a9918088 | 2422 | if (!spnt) |
be9618de | 2423 | { |
ac24997f | 2424 | i2 = SYMTYP_HASH (i1); |
c06e55d9 | 2425 | spnt = (struct VMS_DBG_Symbol *) xmalloc (sizeof (struct VMS_DBG_Symbol)); |
b003a2d9 KR |
2426 | spnt->next = VMS_Symbol_type_list[i2]; |
2427 | VMS_Symbol_type_list[i2] = spnt; | |
be9618de | 2428 | spnt->dbx_type = i1; /* and save the type */ |
a9918088 KR |
2429 | spnt->type2 = spnt->VMS_type = spnt->data_size = 0; |
2430 | spnt->index_min = spnt->index_max = spnt->struc_numb = 0; | |
c06e55d9 | 2431 | } |
70aeac05 KR |
2432 | /* |
2433 | * For structs and unions, do a partial parse, otherwise we sometimes get | |
2434 | * circular definitions that are impossible to resolve. We read enough | |
2435 | * info so that any reference to this type has enough info to be resolved. | |
2436 | */ | |
be9618de | 2437 | pnt = str + 1; /* point to character past equal sign */ |
70aeac05 | 2438 | if (*pnt >= '0' && *pnt <= '9') |
be9618de KR |
2439 | { |
2440 | if (type_check ("void")) | |
2441 | { /* this is the void symbol */ | |
2442 | *str = '\0'; | |
2443 | spnt->advanced = VOID; | |
2444 | return 0; | |
c06e55d9 | 2445 | } |
be9618de | 2446 | if (type_check ("unknown type")) |
a9918088 | 2447 | { |
be9618de KR |
2448 | *str = '\0'; |
2449 | spnt->advanced = UNKNOWN; | |
2450 | return 0; | |
c06e55d9 | 2451 | } |
ac24997f KR |
2452 | pnt1 = cvt_integer (pnt, &i1); |
2453 | if (i1 != spnt->dbx_type) | |
494a6c05 KR |
2454 | { |
2455 | spnt->advanced = ALIAS; | |
2456 | spnt->type2 = i1; | |
ac24997f | 2457 | strcpy (str, pnt1); |
494a6c05 KR |
2458 | return 0; |
2459 | } | |
48401fcf | 2460 | as_tsktsk (_("debugginer output: %d is an unknown untyped variable."), |
703139a8 | 2461 | spnt->dbx_type); |
be9618de | 2462 | return 1; /* do not know what this is */ |
c06e55d9 | 2463 | } |
70aeac05 | 2464 | |
be9618de KR |
2465 | pnt = str + 1; /* point to character past equal sign */ |
2466 | switch (*pnt) | |
2467 | { | |
2468 | case 'r': | |
2469 | spnt->advanced = BASIC; | |
2470 | if (type_check ("int")) | |
2471 | { | |
2472 | spnt->VMS_type = DBG_S_C_SLINT; | |
2473 | spnt->data_size = 4; | |
2474 | } | |
2475 | else if (type_check ("long int")) | |
2476 | { | |
2477 | spnt->VMS_type = DBG_S_C_SLINT; | |
2478 | spnt->data_size = 4; | |
2479 | } | |
2480 | else if (type_check ("unsigned int")) | |
2481 | { | |
2482 | spnt->VMS_type = DBG_S_C_ULINT; | |
2483 | spnt->data_size = 4; | |
2484 | } | |
2485 | else if (type_check ("long unsigned int")) | |
2486 | { | |
2487 | spnt->VMS_type = DBG_S_C_ULINT; | |
2488 | spnt->data_size = 4; | |
2489 | } | |
2490 | else if (type_check ("short int")) | |
2491 | { | |
2492 | spnt->VMS_type = DBG_S_C_SSINT; | |
2493 | spnt->data_size = 2; | |
2494 | } | |
2495 | else if (type_check ("short unsigned int")) | |
2496 | { | |
2497 | spnt->VMS_type = DBG_S_C_USINT; | |
2498 | spnt->data_size = 2; | |
2499 | } | |
2500 | else if (type_check ("char")) | |
2501 | { | |
2502 | spnt->VMS_type = DBG_S_C_SCHAR; | |
2503 | spnt->data_size = 1; | |
2504 | } | |
2505 | else if (type_check ("signed char")) | |
2506 | { | |
2507 | spnt->VMS_type = DBG_S_C_SCHAR; | |
2508 | spnt->data_size = 1; | |
2509 | } | |
2510 | else if (type_check ("unsigned char")) | |
2511 | { | |
2512 | spnt->VMS_type = DBG_S_C_UCHAR; | |
2513 | spnt->data_size = 1; | |
2514 | } | |
2515 | else if (type_check ("float")) | |
2516 | { | |
2517 | spnt->VMS_type = DBG_S_C_REAL4; | |
2518 | spnt->data_size = 4; | |
2519 | } | |
2520 | else if (type_check ("double")) | |
2521 | { | |
a9918088 | 2522 | spnt->VMS_type = vax_g_doubles ? DBG_S_C_REAL8_G : DBG_S_C_REAL8; |
be9618de KR |
2523 | spnt->data_size = 8; |
2524 | } | |
c06e55d9 KR |
2525 | else if (type_check ("long double")) |
2526 | { | |
2527 | /* same as double, at least for now */ | |
a9918088 | 2528 | spnt->VMS_type = vax_g_doubles ? DBG_S_C_REAL8_G : DBG_S_C_REAL8; |
c06e55d9 KR |
2529 | spnt->data_size = 8; |
2530 | } | |
2531 | else if (type_check ("long long int")) | |
2532 | { | |
2533 | spnt->VMS_type = DBG_S_C_SQUAD; /* signed quadword */ | |
2534 | spnt->data_size = 8; | |
2535 | } | |
2536 | else if (type_check ("long long unsigned int")) | |
2537 | { | |
2538 | spnt->VMS_type = DBG_S_C_UQUAD; /* unsigned quadword */ | |
2539 | spnt->data_size = 8; | |
2540 | } | |
675ad6dc KR |
2541 | else if (type_check ("complex float")) |
2542 | { | |
2543 | spnt->VMS_type = DBG_S_C_COMPLX4; | |
2544 | spnt->data_size = 2 * 4; | |
2545 | } | |
2546 | else if (type_check ("complex double")) | |
2547 | { | |
a9918088 | 2548 | spnt->VMS_type = vax_g_doubles ? DBG_S_C_COMPLX8_G : DBG_S_C_COMPLX8; |
675ad6dc KR |
2549 | spnt->data_size = 2 * 8; |
2550 | } | |
2551 | else if (type_check ("complex long double")) | |
2552 | { | |
2553 | /* same as complex double, at least for now */ | |
a9918088 | 2554 | spnt->VMS_type = vax_g_doubles ? DBG_S_C_COMPLX8_G : DBG_S_C_COMPLX8; |
675ad6dc KR |
2555 | spnt->data_size = 2 * 8; |
2556 | } | |
c06e55d9 KR |
2557 | else |
2558 | { | |
675ad6dc KR |
2559 | /* [pr] |
2560 | * Shouldn't get here, but if we do, something | |
2561 | * more substantial ought to be done... | |
2562 | */ | |
c06e55d9 KR |
2563 | spnt->VMS_type = 0; |
2564 | spnt->data_size = 0; | |
2565 | } | |
a9918088 | 2566 | if (spnt->VMS_type != 0) |
ac24997f | 2567 | setup_basic_type (spnt); |
be9618de KR |
2568 | pnt1 = (char *) strchr (str, ';') + 1; |
2569 | break; | |
2570 | case 's': | |
2571 | case 'u': | |
a9918088 | 2572 | spnt->advanced = (*pnt == 's') ? STRUCT : UNION; |
be9618de KR |
2573 | spnt->VMS_type = DBG_S_C_ADVANCED_TYPE; |
2574 | pnt1 = cvt_integer (pnt + 1, &spnt->data_size); | |
ac24997f | 2575 | if (!final_pass && forward_reference (pnt)) |
be9618de KR |
2576 | { |
2577 | spnt->struc_numb = -1; | |
2578 | return 1; | |
2579 | } | |
2580 | spnt->struc_numb = ++structure_count; | |
2581 | pnt1--; | |
2582 | pnt = get_struct_name (str); | |
2583 | VMS_Def_Struct (spnt->struc_numb); | |
a9918088 KR |
2584 | i = 0; |
2585 | for (fpnt = f_ref_root; fpnt; fpnt = fpnt->next) | |
2586 | if (fpnt->dbx_type == spnt->dbx_type) | |
2587 | { | |
2588 | fpnt->resolved = 'Y'; | |
2589 | VMS_Set_Struct (fpnt->struc_numb); | |
2590 | VMS_Store_Struct (spnt->struc_numb); | |
2591 | i++; | |
2592 | } | |
2593 | if (i > 0) | |
2594 | VMS_Set_Struct (spnt->struc_numb); | |
be9618de KR |
2595 | i = 0; |
2596 | Local[i++] = 11 + strlen (pnt); | |
2597 | Local[i++] = DBG_S_C_STRUCT_START; | |
a9918088 | 2598 | Local[i++] = DST_K_VFLAGS_NOVAL; /* structure definition only */ |
ac24997f | 2599 | COPY_LONG (&Local[i], 0L); /* hence value is unused */ |
a9918088 | 2600 | i += 4; |
be9618de KR |
2601 | Local[i++] = strlen (pnt); |
2602 | pnt2 = pnt; | |
2603 | while (*pnt2 != '\0') | |
2604 | Local[i++] = *pnt2++; | |
2605 | i2 = spnt->data_size * 8; /* number of bits */ | |
ac24997f | 2606 | COPY_LONG (&Local[i], i2); |
494a6c05 | 2607 | i += 4; |
be9618de KR |
2608 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); |
2609 | i = 0; | |
2610 | if (pnt != symbol_name) | |
2611 | { | |
2612 | pnt += strlen (pnt); | |
2613 | *pnt = ':'; | |
c06e55d9 | 2614 | } /* replace colon for later */ |
be9618de KR |
2615 | while (*++pnt1 != ';') |
2616 | { | |
2617 | pnt = (char *) strchr (pnt1, ':'); | |
2618 | *pnt = '\0'; | |
2619 | pnt2 = pnt1; | |
2620 | pnt1 = cvt_integer (pnt + 1, &dtype); | |
2621 | pnt1 = cvt_integer (pnt1 + 1, &i2); | |
2622 | pnt1 = cvt_integer (pnt1 + 1, &i3); | |
a9918088 KR |
2623 | spnt1 = find_symbol (dtype); |
2624 | len = strlen (pnt2); | |
2625 | if (spnt1 && (spnt1->advanced == BASIC || spnt1->advanced == ENUM) | |
2626 | && ((i3 != spnt1->data_size * 8) || (i2 % 8 != 0))) | |
be9618de | 2627 | { /* bitfield */ |
a9918088 KR |
2628 | if (USE_BITSTRING_DESCRIPTOR (spnt1)) |
2629 | { | |
2630 | /* This uses a type descriptor, which doesn't work if | |
2631 | the enclosing structure has been placed in a register. | |
2632 | Also, enum bitfields degenerate to simple integers. */ | |
2633 | int unsigned_type = (spnt1->VMS_type == DBG_S_C_ULINT | |
2634 | || spnt1->VMS_type == DBG_S_C_USINT | |
2635 | || spnt1->VMS_type == DBG_S_C_UCHAR | |
2636 | || spnt1->VMS_type == DBG_S_C_UQUAD | |
2637 | || spnt1->advanced == ENUM); /* (approximate) */ | |
2638 | Apoint = 0; | |
0509f064 KR |
2639 | fpush (19 + len, 1); |
2640 | fpush (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1); | |
2641 | fpush (DST_K_VFLAGS_DSC, 1); /* specified by descriptor */ | |
2642 | fpush (1 + len, 4); /* relative offset to descriptor */ | |
2643 | fpush (len, 1); /* length byte (ascic prefix) */ | |
a9918088 | 2644 | while (*pnt2 != '\0') /* name bytes */ |
0509f064 KR |
2645 | fpush (*pnt2++, 1); |
2646 | fpush (i3, 2); /* dsc length == size of bitfield */ | |
a9918088 | 2647 | /* dsc type == un?signed bitfield */ |
0509f064 KR |
2648 | fpush (unsigned_type ? DBG_S_C_UBITU : DBG_S_C_SBITU, 1); |
2649 | fpush (DSC_K_CLASS_UBS, 1); /* dsc class == unaligned bitstring */ | |
2650 | fpush (0x00, 4); /* dsc pointer == zeroes */ | |
2651 | fpush (i2, 4); /* start position */ | |
a9918088 KR |
2652 | VMS_Store_Immediate_Data (Asuffix, Apoint, OBJ_S_C_DBG); |
2653 | Apoint = 0; | |
2654 | } | |
2655 | else | |
2656 | { | |
2657 | /* Use a "novel length" type specification, which works | |
2658 | right for register structures and for enum bitfields | |
2659 | but results in larger object modules. */ | |
2660 | Local[i++] = 7 + len; | |
2661 | Local[i++] = DBG_S_C_ADVANCED_TYPE; /* type spec follows */ | |
2662 | Local[i++] = DBG_S_C_STRUCT_ITEM; /* value is a bit offset */ | |
2663 | COPY_LONG (&Local[i], i2); /* bit offset */ | |
2664 | i += 4; | |
2665 | Local[i++] = strlen (pnt2); | |
2666 | while (*pnt2 != '\0') | |
2667 | Local[i++] = *pnt2++; | |
2668 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2669 | i = 0; | |
2670 | bitfield_suffix (spnt1, i3); | |
2671 | } | |
be9618de KR |
2672 | } |
2673 | else | |
a9918088 | 2674 | { /* not a bitfield */ |
be9618de | 2675 | /* check if this is a forward reference */ |
ac24997f | 2676 | if (final_pass && final_forward_reference (spnt1)) |
494a6c05 | 2677 | { |
48401fcf | 2678 | as_tsktsk (_("debugger output: structure element `%s' has undefined type"), |
703139a8 | 2679 | pnt2); |
494a6c05 KR |
2680 | continue; |
2681 | } | |
a9918088 KR |
2682 | Local[i++] = 7 + len; |
2683 | Local[i++] = spnt1 ? spnt1->VMS_type : DBG_S_C_ADVANCED_TYPE; | |
be9618de | 2684 | Local[i++] = DBG_S_C_STRUCT_ITEM; |
a9918088 | 2685 | COPY_LONG (&Local[i], i2); /* bit offset */ |
494a6c05 | 2686 | i += 4; |
be9618de KR |
2687 | Local[i++] = strlen (pnt2); |
2688 | while (*pnt2 != '\0') | |
2689 | Local[i++] = *pnt2++; | |
2690 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2691 | i = 0; | |
a9918088 | 2692 | if (!spnt1) |
be9618de KR |
2693 | generate_suffix (spnt1, dtype); |
2694 | else if (spnt1->VMS_type == DBG_S_C_ADVANCED_TYPE) | |
2695 | generate_suffix (spnt1, 0); | |
c06e55d9 KR |
2696 | } |
2697 | } | |
be9618de KR |
2698 | pnt1++; |
2699 | Local[i++] = 0x01; /* length byte */ | |
2700 | Local[i++] = DBG_S_C_STRUCT_END; | |
2701 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2702 | i = 0; | |
2703 | break; | |
2704 | case 'e': | |
2705 | spnt->advanced = ENUM; | |
2706 | spnt->VMS_type = DBG_S_C_ADVANCED_TYPE; | |
2707 | spnt->struc_numb = ++structure_count; | |
2708 | spnt->data_size = 4; | |
2709 | VMS_Def_Struct (spnt->struc_numb); | |
be9618de | 2710 | i = 0; |
a9918088 KR |
2711 | for (fpnt = f_ref_root; fpnt; fpnt = fpnt->next) |
2712 | if (fpnt->dbx_type == spnt->dbx_type) | |
2713 | { | |
2714 | fpnt->resolved = 'Y'; | |
2715 | VMS_Set_Struct (fpnt->struc_numb); | |
2716 | VMS_Store_Struct (spnt->struc_numb); | |
2717 | i++; | |
2718 | } | |
2719 | if (i > 0) | |
2720 | VMS_Set_Struct (spnt->struc_numb); | |
2721 | i = 0; | |
2722 | len = strlen (symbol_name); | |
2723 | Local[i++] = 3 + len; | |
be9618de | 2724 | Local[i++] = DBG_S_C_ENUM_START; |
a9918088 KR |
2725 | Local[i++] = 4 * 8; /* enum values are 32 bits */ |
2726 | Local[i++] = len; | |
be9618de KR |
2727 | pnt2 = symbol_name; |
2728 | while (*pnt2 != '\0') | |
2729 | Local[i++] = *pnt2++; | |
2730 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2731 | i = 0; | |
2732 | while (*++pnt != ';') | |
2733 | { | |
2734 | pnt1 = (char *) strchr (pnt, ':'); | |
2735 | *pnt1++ = '\0'; | |
2736 | pnt1 = cvt_integer (pnt1, &i1); | |
a9918088 KR |
2737 | len = strlen (pnt); |
2738 | Local[i++] = 7 + len; | |
be9618de | 2739 | Local[i++] = DBG_S_C_ENUM_ITEM; |
a9918088 | 2740 | Local[i++] = DST_K_VALKIND_LITERAL; |
494a6c05 KR |
2741 | COPY_LONG (&Local[i], i1); |
2742 | i += 4; | |
a9918088 | 2743 | Local[i++] = len; |
be9618de KR |
2744 | pnt2 = pnt; |
2745 | while (*pnt != '\0') | |
2746 | Local[i++] = *pnt++; | |
2747 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2748 | i = 0; | |
2749 | pnt = pnt1; /* Skip final semicolon */ | |
c06e55d9 | 2750 | } |
be9618de KR |
2751 | Local[i++] = 0x01; /* len byte */ |
2752 | Local[i++] = DBG_S_C_ENUM_END; | |
2753 | VMS_Store_Immediate_Data (Local, i, OBJ_S_C_DBG); | |
2754 | i = 0; | |
2755 | pnt1 = pnt + 1; | |
2756 | break; | |
2757 | case 'a': | |
2758 | spnt->advanced = ARRAY; | |
2759 | spnt->VMS_type = DBG_S_C_ADVANCED_TYPE; | |
2760 | pnt = (char *) strchr (pnt, ';'); | |
b003a2d9 | 2761 | if (!pnt) |
be9618de KR |
2762 | return 1; |
2763 | pnt1 = cvt_integer (pnt + 1, &spnt->index_min); | |
2764 | pnt1 = cvt_integer (pnt1 + 1, &spnt->index_max); | |
2765 | pnt1 = cvt_integer (pnt1 + 1, &spnt->type2); | |
b003a2d9 KR |
2766 | pnt = (char *) strchr (str + 1, '='); |
2767 | if (pnt && VMS_typedef_parse (pnt) == 1) | |
2768 | return 1; | |
be9618de KR |
2769 | break; |
2770 | case 'f': | |
2771 | spnt->advanced = FUNCTION; | |
2772 | spnt->VMS_type = DBG_S_C_FUNCTION_ADDR; | |
2773 | /* this masquerades as a basic type*/ | |
2774 | spnt->data_size = 4; | |
2775 | pnt1 = cvt_integer (pnt + 1, &spnt->type2); | |
2776 | break; | |
2777 | case '*': | |
2778 | spnt->advanced = POINTER; | |
2779 | spnt->VMS_type = DBG_S_C_ADVANCED_TYPE; | |
2780 | spnt->data_size = 4; | |
2781 | pnt1 = cvt_integer (pnt + 1, &spnt->type2); | |
2782 | pnt = (char *) strchr (str + 1, '='); | |
b003a2d9 KR |
2783 | if (pnt && VMS_typedef_parse (pnt) == 1) |
2784 | return 1; | |
be9618de KR |
2785 | break; |
2786 | default: | |
2787 | spnt->advanced = UNKNOWN; | |
2788 | spnt->VMS_type = 0; | |
48401fcf | 2789 | as_tsktsk (_("debugger output: %d is an unknown type of variable."), |
703139a8 | 2790 | spnt->dbx_type); |
be9618de | 2791 | return 1; /* unable to decipher */ |
c06e55d9 | 2792 | } |
70aeac05 KR |
2793 | /* This removes the evidence of the definition so that the outer levels |
2794 | of parsing do not have to worry about it. */ | |
be9618de KR |
2795 | pnt = str; |
2796 | while (*pnt1 != '\0') | |
2797 | *pnt++ = *pnt1++; | |
2798 | *pnt = '\0'; | |
2799 | return 0; | |
2800 | } | |
2801 | ||
2802 | ||
70aeac05 KR |
2803 | /* This is the root routine that parses the stabs entries for definitions. |
2804 | it calls VMS_typedef_parse, which can in turn call itself. We need to | |
2805 | be careful, since sometimes there are forward references to other symbol | |
2806 | types, and these cannot be resolved until we have completed the parse. | |
2807 | ||
2808 | Also check and see if we are using continuation stabs, if we are, then | |
2809 | paste together the entire contents of the stab before we pass it to | |
2810 | VMS_typedef_parse. */ | |
2811 | ||
8e86815b | 2812 | static void |
be9618de KR |
2813 | VMS_LSYM_Parse () |
2814 | { | |
2815 | char *pnt; | |
2816 | char *pnt1; | |
2817 | char *pnt2; | |
2818 | char *str; | |
494a6c05 | 2819 | char *parse_buffer = 0; |
be9618de | 2820 | char fixit[10]; |
8e86815b | 2821 | int incomplete, pass, incom1; |
be9618de KR |
2822 | struct forward_ref *fpnt; |
2823 | symbolS *sp; | |
8e86815b | 2824 | |
be9618de | 2825 | pass = 0; |
494a6c05 | 2826 | final_pass = 0; |
be9618de KR |
2827 | incomplete = 0; |
2828 | do | |
2829 | { | |
2830 | incom1 = incomplete; | |
2831 | incomplete = 0; | |
2832 | for (sp = symbol_rootP; sp; sp = symbol_next (sp)) | |
2833 | { | |
2834 | /* | |
2835 | * Deal with STAB symbols | |
2836 | */ | |
2837 | if (S_IS_DEBUG (sp)) | |
2838 | { | |
2839 | /* | |
2840 | * Dispatch on STAB type | |
2841 | */ | |
2842 | switch (S_GET_RAW_TYPE (sp)) | |
2843 | { | |
2844 | case N_GSYM: | |
2845 | case N_LCSYM: | |
2846 | case N_STSYM: | |
2847 | case N_PSYM: | |
2848 | case N_RSYM: | |
2849 | case N_LSYM: | |
2850 | case N_FUN: /*sometimes these contain typedefs*/ | |
2851 | str = S_GET_NAME (sp); | |
2852 | symbol_name = str; | |
ac24997f | 2853 | pnt = str + strlen (str) - 1; |
494a6c05 KR |
2854 | if (*pnt == '?') /* Continuation stab. */ |
2855 | { | |
2856 | symbolS *spnext; | |
2857 | int tlen = 0; | |
8e86815b | 2858 | |
494a6c05 KR |
2859 | spnext = sp; |
2860 | do { | |
ac24997f | 2861 | tlen += strlen (str) - 1; |
494a6c05 KR |
2862 | spnext = symbol_next (spnext); |
2863 | str = S_GET_NAME (spnext); | |
ac24997f | 2864 | pnt = str + strlen (str) - 1; |
494a6c05 | 2865 | } while (*pnt == '?'); |
ac24997f | 2866 | tlen += strlen (str); |
c06e55d9 | 2867 | parse_buffer = (char *) xmalloc (tlen + 1); |
ac24997f | 2868 | strcpy (parse_buffer, S_GET_NAME (sp)); |
70aeac05 | 2869 | pnt2 = parse_buffer + strlen (parse_buffer) - 1; |
494a6c05 KR |
2870 | *pnt2 = '\0'; |
2871 | spnext = sp; | |
2872 | do { | |
2873 | spnext = symbol_next (spnext); | |
2874 | str = S_GET_NAME (spnext); | |
ac24997f KR |
2875 | strcat (pnt2, str); |
2876 | pnt2 += strlen (str) - 1; | |
494a6c05 | 2877 | *str = '\0'; /* Erase this string */ |
70aeac05 | 2878 | /* S_SET_NAME (spnext, str); */ |
494a6c05 KR |
2879 | if (*pnt2 != '?') break; |
2880 | *pnt2 = '\0'; | |
70aeac05 | 2881 | } while (1); |
494a6c05 KR |
2882 | str = parse_buffer; |
2883 | symbol_name = str; | |
c06e55d9 | 2884 | } |
70aeac05 | 2885 | if ((pnt = (char *) strchr (str, ':')) != 0) |
be9618de | 2886 | { |
494a6c05 KR |
2887 | *pnt = '\0'; |
2888 | pnt1 = pnt + 1; | |
70aeac05 | 2889 | if ((pnt2 = (char *) strchr (pnt1, '=')) != 0) |
494a6c05 | 2890 | incomplete += VMS_typedef_parse (pnt2); |
3c650d09 KR |
2891 | if (parse_buffer) |
2892 | { | |
2893 | /* At this point the parse buffer should just | |
2894 | contain name:nn. If it does not, then we | |
2895 | are in real trouble. Anyway, this is always | |
2896 | shorter than the original line. */ | |
70aeac05 KR |
2897 | pnt2 = S_GET_NAME (sp); |
2898 | strcpy (pnt2, parse_buffer); | |
2899 | /* S_SET_NAME (sp, pnt2); */ | |
2900 | free (parse_buffer), parse_buffer = 0; | |
3c650d09 KR |
2901 | } |
2902 | *pnt = ':'; /* put back colon to restore dbx_type */ | |
c06e55d9 | 2903 | } |
be9618de KR |
2904 | break; |
2905 | } /*switch*/ | |
2906 | } /* if */ | |
2907 | } /*for*/ | |
2908 | pass++; | |
70aeac05 KR |
2909 | /* |
2910 | * Make one last pass, if needed, and define whatever we can | |
2911 | * that is left. | |
2912 | */ | |
ac24997f | 2913 | if (final_pass == 0 && incomplete == incom1) |
70aeac05 KR |
2914 | { |
2915 | final_pass = 1; | |
2916 | incom1++; /* Force one last pass through */ | |
c06e55d9 | 2917 | } |
70aeac05 | 2918 | } while (incomplete != 0 && incomplete != incom1); |
be9618de | 2919 | /* repeat until all refs resolved if possible */ |
70aeac05 | 2920 | /* if (pass > 1) printf (" Required %d passes\n", pass); */ |
be9618de KR |
2921 | if (incomplete != 0) |
2922 | { | |
48401fcf | 2923 | as_tsktsk (_("debugger output: Unable to resolve %d circular references."), |
703139a8 | 2924 | incomplete); |
c06e55d9 | 2925 | } |
be9618de KR |
2926 | fpnt = f_ref_root; |
2927 | symbol_name = "\0"; | |
70aeac05 | 2928 | while (fpnt) |
be9618de KR |
2929 | { |
2930 | if (fpnt->resolved != 'Y') | |
2931 | { | |
70aeac05 | 2932 | if (find_symbol (fpnt->dbx_type)) |
be9618de | 2933 | { |
48401fcf | 2934 | as_tsktsk (_("debugger forward reference error, dbx type %d"), |
703139a8 | 2935 | fpnt->dbx_type); |
be9618de | 2936 | break; |
c06e55d9 | 2937 | } |
be9618de KR |
2938 | fixit[0] = 0; |
2939 | sprintf (&fixit[1], "%d=s4;", fpnt->dbx_type); | |
2940 | pnt2 = (char *) strchr (&fixit[1], '='); | |
2941 | VMS_typedef_parse (pnt2); | |
c06e55d9 | 2942 | } |
be9618de | 2943 | fpnt = fpnt->next; |
c06e55d9 | 2944 | } |
be9618de KR |
2945 | } |
2946 | ||
70aeac05 | 2947 | |
8e86815b | 2948 | static void |
4596bc7a KR |
2949 | Define_Local_Symbols (s0P, s2P, Current_Routine, Text_Psect) |
2950 | symbolS *s0P, *s2P; | |
2951 | symbolS *Current_Routine; | |
2952 | int Text_Psect; | |
be9618de | 2953 | { |
4596bc7a KR |
2954 | symbolS *s1P; /* each symbol from s0P .. s2P (exclusive) */ |
2955 | ||
2956 | for (s1P = symbol_next (s0P); s1P != s2P; s1P = symbol_next (s1P)) | |
be9618de | 2957 | { |
4596bc7a KR |
2958 | if (!s1P) |
2959 | break; /* and return */ | |
2960 | if (S_GET_RAW_TYPE (s1P) == N_FUN) | |
be9618de | 2961 | { |
4596bc7a | 2962 | char *pnt = (char *) strchr (S_GET_NAME (s1P), ':') + 1; |
be9618de | 2963 | if (*pnt == 'F' || *pnt == 'f') break; |
c06e55d9 | 2964 | } |
4596bc7a KR |
2965 | if (!S_IS_DEBUG (s1P)) |
2966 | continue; | |
be9618de | 2967 | /* |
4596bc7a | 2968 | * Dispatch on STAB type |
be9618de | 2969 | */ |
4596bc7a | 2970 | switch (S_GET_RAW_TYPE (s1P)) |
be9618de | 2971 | { |
4596bc7a KR |
2972 | default: |
2973 | continue; /* not left or right brace */ | |
2974 | ||
2975 | case N_LSYM: | |
2976 | case N_PSYM: | |
2977 | VMS_local_stab_Parse (s1P); | |
2978 | break; | |
2979 | ||
2980 | case N_RSYM: | |
2981 | VMS_RSYM_Parse (s1P, Current_Routine, Text_Psect); | |
2982 | break; | |
2983 | } /*switch*/ | |
be9618de KR |
2984 | } /* for */ |
2985 | } | |
2986 | ||
70aeac05 KR |
2987 | |
2988 | /* This function crawls the symbol chain searching for local symbols that | |
2989 | need to be described to the debugger. When we enter a new scope with | |
2990 | a "{", it creates a new "block", which helps the debugger keep track | |
2991 | of which scope we are currently in. */ | |
be9618de KR |
2992 | |
2993 | static symbolS * | |
4596bc7a KR |
2994 | Define_Routine (s0P, Level, Current_Routine, Text_Psect) |
2995 | symbolS *s0P; | |
be9618de | 2996 | int Level; |
4596bc7a KR |
2997 | symbolS *Current_Routine; |
2998 | int Text_Psect; | |
be9618de | 2999 | { |
4596bc7a KR |
3000 | symbolS *s1P; |
3001 | valueT Offset; | |
be9618de | 3002 | int rcount = 0; |
4596bc7a KR |
3003 | |
3004 | for (s1P = symbol_next (s0P); s1P != 0; s1P = symbol_next (s1P)) | |
be9618de | 3005 | { |
4596bc7a | 3006 | if (S_GET_RAW_TYPE (s1P) == N_FUN) |
be9618de | 3007 | { |
4596bc7a | 3008 | char *pnt = (char *) strchr (S_GET_NAME (s1P), ':') + 1; |
be9618de | 3009 | if (*pnt == 'F' || *pnt == 'f') break; |
c06e55d9 | 3010 | } |
4596bc7a KR |
3011 | if (!S_IS_DEBUG (s1P)) |
3012 | continue; | |
be9618de | 3013 | /* |
4596bc7a | 3014 | * Dispatch on STAB type |
be9618de | 3015 | */ |
4596bc7a | 3016 | switch (S_GET_RAW_TYPE (s1P)) |
be9618de | 3017 | { |
4596bc7a KR |
3018 | default: |
3019 | continue; /* not left or right brace */ | |
3020 | ||
3021 | case N_LBRAC: | |
3022 | if (Level != 0) | |
be9618de | 3023 | { |
4596bc7a KR |
3024 | char str[10]; |
3025 | sprintf (str, "$%d", rcount++); | |
3026 | VMS_TBT_Block_Begin (s1P, Text_Psect, str); | |
3027 | } | |
3028 | Offset = S_GET_VALUE (s1P); /* side-effect: fully resolve symbol */ | |
3029 | Define_Local_Symbols (s0P, s1P, Current_Routine, Text_Psect); | |
3030 | s1P = Define_Routine (s1P, Level + 1, Current_Routine, Text_Psect); | |
3031 | if (Level != 0) | |
3032 | VMS_TBT_Block_End (S_GET_VALUE (s1P) - Offset); | |
3033 | s0P = s1P; | |
3034 | break; | |
3035 | ||
3036 | case N_RBRAC: | |
3037 | return s1P; | |
3038 | } /*switch*/ | |
be9618de | 3039 | } /* for */ |
be9618de | 3040 | |
4596bc7a KR |
3041 | /* We end up here if there were no brackets in this function. |
3042 | Define everything. */ | |
3043 | Define_Local_Symbols (s0P, (symbolS *)0, Current_Routine, Text_Psect); | |
3044 | return s1P; | |
be9618de KR |
3045 | } |
3046 | \f | |
3047 | ||
b9419dd2 | 3048 | #ifndef VMS |
be9618de KR |
3049 | #include <sys/types.h> |
3050 | #include <time.h> | |
4b18b7cd | 3051 | static void get_VMS_time_on_unix PARAMS ((char *)); |
be9618de | 3052 | |
4b18b7cd KR |
3053 | /* Manufacture a VMS-like time string on a Unix based system. */ |
3054 | static void | |
db4e0f90 KR |
3055 | get_VMS_time_on_unix (Now) |
3056 | char *Now; | |
be9618de KR |
3057 | { |
3058 | char *pnt; | |
3059 | time_t timeb; | |
4b18b7cd | 3060 | |
be9618de KR |
3061 | time (&timeb); |
3062 | pnt = ctime (&timeb); | |
3063 | pnt[3] = 0; | |
3064 | pnt[7] = 0; | |
3065 | pnt[10] = 0; | |
3066 | pnt[16] = 0; | |
3067 | pnt[24] = 0; | |
3068 | sprintf (Now, "%2s-%3s-%s %s", pnt + 8, pnt + 4, pnt + 20, pnt + 11); | |
3069 | } | |
b9419dd2 | 3070 | #endif /* not VMS */ |
4b18b7cd | 3071 | |
53499500 KR |
3072 | |
3073 | /* Write the MHD (Module Header) records. */ | |
3074 | ||
8e86815b | 3075 | static void |
be9618de KR |
3076 | Write_VMS_MHD_Records () |
3077 | { | |
f2224fe2 KR |
3078 | register const char *cp; |
3079 | register char *cp1; | |
be9618de | 3080 | register int i; |
3c650d09 KR |
3081 | #ifdef VMS |
3082 | struct { unsigned short len, mbz; char *ptr; } Descriptor; | |
3083 | #endif | |
3c650d09 | 3084 | char Now[17+1]; |
be9618de | 3085 | |
53499500 | 3086 | /* We are writing a module header record. */ |
be9618de KR |
3087 | Set_VMS_Object_File_Record (OBJ_S_C_HDR); |
3088 | /* | |
3089 | * *************************** | |
3090 | * *MAIN MODULE HEADER RECORD* | |
3091 | * *************************** | |
be9618de | 3092 | */ |
53499500 | 3093 | /* Store record type and header type. */ |
be9618de KR |
3094 | PUT_CHAR (OBJ_S_C_HDR); |
3095 | PUT_CHAR (MHD_S_C_MHD); | |
53499500 | 3096 | /* Structure level is 0. */ |
be9618de | 3097 | PUT_CHAR (OBJ_S_C_STRLVL); |
53499500 | 3098 | /* Maximum record size is size of the object record buffer. */ |
be9618de | 3099 | PUT_SHORT (sizeof (Object_Record_Buffer)); |
3c650d09 KR |
3100 | |
3101 | /* | |
3102 | * FIXME: module name and version should be user | |
3103 | * specifiable via `.ident' and/or `#pragma ident'. | |
3104 | */ | |
3105 | ||
53499500 | 3106 | /* Get module name (the FILENAME part of the object file). */ |
be9618de KR |
3107 | cp = out_file_name; |
3108 | cp1 = Module_Name; | |
3109 | while (*cp) | |
3110 | { | |
53499500 | 3111 | if (*cp == ']' || *cp == '>' || *cp == ':' || *cp == '/') |
be9618de KR |
3112 | { |
3113 | cp1 = Module_Name; | |
3114 | cp++; | |
3115 | continue; | |
3116 | } | |
3117 | *cp1++ = islower (*cp) ? toupper (*cp++) : *cp++; | |
3118 | } | |
53499500 KR |
3119 | *cp1 = '\0'; |
3120 | ||
3121 | /* Limit it to 31 characters and store in the object record. */ | |
be9618de KR |
3122 | while (--cp1 >= Module_Name) |
3123 | if (*cp1 == '.') | |
53499500 | 3124 | *cp1 = '\0'; |
be9618de KR |
3125 | if (strlen (Module_Name) > 31) |
3126 | { | |
def66e24 | 3127 | if (flag_hash_long_names) |
48401fcf | 3128 | as_tsktsk (_("Module name truncated: %s\n"), Module_Name); |
53499500 | 3129 | Module_Name[31] = '\0'; |
be9618de KR |
3130 | } |
3131 | PUT_COUNTED_STRING (Module_Name); | |
53499500 | 3132 | /* Module Version is "V1.0". */ |
be9618de | 3133 | PUT_COUNTED_STRING ("V1.0"); |
53499500 | 3134 | /* Creation time is "now" (17 chars of time string): "dd-MMM-yyyy hh:mm". */ |
b9419dd2 | 3135 | #ifndef VMS |
3c650d09 | 3136 | get_VMS_time_on_unix (Now); |
b9419dd2 | 3137 | #else /* VMS */ |
3c650d09 KR |
3138 | Descriptor.len = sizeof Now - 1; |
3139 | Descriptor.mbz = 0; /* type & class unspecified */ | |
3140 | Descriptor.ptr = Now; | |
3141 | (void) sys$asctim ((unsigned short *)0, &Descriptor, (long *)0, 0); | |
b9419dd2 | 3142 | #endif /* VMS */ |
be9618de KR |
3143 | for (i = 0; i < 17; i++) |
3144 | PUT_CHAR (Now[i]); | |
53499500 | 3145 | /* Patch time is "never" (17 zeros). */ |
be9618de KR |
3146 | for (i = 0; i < 17; i++) |
3147 | PUT_CHAR (0); | |
53499500 | 3148 | /* Force this to be a separate output record. */ |
be9618de | 3149 | Flush_VMS_Object_Record_Buffer (); |
53499500 | 3150 | |
be9618de KR |
3151 | /* |
3152 | * ************************* | |
3153 | * *LANGUAGE PROCESSOR NAME* | |
3154 | * ************************* | |
be9618de | 3155 | */ |
53499500 | 3156 | /* Store record type and header type. */ |
be9618de KR |
3157 | PUT_CHAR (OBJ_S_C_HDR); |
3158 | PUT_CHAR (MHD_S_C_LNM); | |
3159 | /* | |
53499500 | 3160 | * Store language processor name and version (not a counted string!). |
c06e55d9 | 3161 | * |
53499500 KR |
3162 | * This is normally supplied by the gcc driver for the command line |
3163 | * which invokes gas. If absent, we fall back to gas's version. | |
be9618de KR |
3164 | */ |
3165 | cp = compiler_version_string; | |
3166 | if (cp == 0) | |
3167 | { | |
3168 | cp = "GNU AS V"; | |
3169 | while (*cp) | |
3170 | PUT_CHAR (*cp++); | |
e2b4bd2a | 3171 | cp = VERSION; |
c06e55d9 KR |
3172 | } |
3173 | while (*cp >= ' ') | |
be9618de | 3174 | PUT_CHAR (*cp++); |
53499500 | 3175 | /* Force this to be a separate output record. */ |
be9618de KR |
3176 | Flush_VMS_Object_Record_Buffer (); |
3177 | } | |
be9618de | 3178 | |
53499500 KR |
3179 | |
3180 | /* Write the EOM (End Of Module) record. */ | |
3181 | ||
8e86815b | 3182 | static void |
be9618de KR |
3183 | Write_VMS_EOM_Record (Psect, Offset) |
3184 | int Psect; | |
53499500 | 3185 | valueT Offset; |
be9618de KR |
3186 | { |
3187 | /* | |
3188 | * We are writing an end-of-module record | |
b003a2d9 KR |
3189 | * (this assumes that the entry point will always be in a psect |
3190 | * represented by a single byte, which is the case for code in | |
3191 | * Text_Psect==0) | |
be9618de KR |
3192 | */ |
3193 | Set_VMS_Object_File_Record (OBJ_S_C_EOM); | |
4596bc7a KR |
3194 | PUT_CHAR (OBJ_S_C_EOM); /* Record type. */ |
3195 | PUT_CHAR (0); /* Error severity level (we ignore it). */ | |
be9618de KR |
3196 | /* |
3197 | * Store the entry point, if it exists | |
3198 | */ | |
3199 | if (Psect >= 0) | |
3200 | { | |
be9618de | 3201 | PUT_CHAR (Psect); |
be9618de KR |
3202 | PUT_LONG (Offset); |
3203 | } | |
53499500 | 3204 | /* Flush the record; this will be our final output. */ |
be9618de KR |
3205 | Flush_VMS_Object_Record_Buffer (); |
3206 | } | |
3207 | \f | |
3208 | ||
3209 | /* this hash routine borrowed from GNU-EMACS, and strengthened slightly ERY*/ | |
3210 | ||
3211 | static int | |
3212 | hash_string (ptr) | |
4b18b7cd | 3213 | const char *ptr; |
be9618de | 3214 | { |
4b18b7cd KR |
3215 | register const unsigned char *p = (unsigned char *) ptr; |
3216 | register const unsigned char *end = p + strlen (ptr); | |
be9618de KR |
3217 | register unsigned char c; |
3218 | register int hash = 0; | |
3219 | ||
3220 | while (p != end) | |
3221 | { | |
3222 | c = *p++; | |
3223 | hash = ((hash << 3) + (hash << 15) + (hash >> 28) + c); | |
3224 | } | |
3225 | return hash; | |
3226 | } | |
3227 | ||
3228 | /* | |
3229 | * Generate a Case-Hacked VMS symbol name (limited to 31 chars) | |
3230 | */ | |
8e86815b | 3231 | static void |
be9618de | 3232 | VMS_Case_Hack_Symbol (In, Out) |
4b18b7cd | 3233 | register const char *In; |
be9618de KR |
3234 | register char *Out; |
3235 | { | |
8e86815b | 3236 | long int init; |
be9618de | 3237 | long int result; |
8e86815b | 3238 | char *pnt = 0; |
be9618de | 3239 | char *new_name; |
4b18b7cd | 3240 | const char *old_name; |
be9618de KR |
3241 | register int i; |
3242 | int destructor = 0; /*hack to allow for case sens in a destructor*/ | |
3243 | int truncate = 0; | |
3244 | int Case_Hack_Bits = 0; | |
3245 | int Saw_Dollar = 0; | |
3246 | static char Hex_Table[16] = | |
3247 | {'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'}; | |
3248 | ||
3249 | /* | |
3250 | * Kill any leading "_" | |
3251 | */ | |
3252 | if ((In[0] == '_') && ((In[1] > '9') || (In[1] < '0'))) | |
3253 | In++; | |
3254 | ||
3255 | new_name = Out; /* save this for later*/ | |
3256 | ||
3257 | #if barfoo /* Dead code */ | |
3258 | if ((In[0] == '_') && (In[1] == '$') && (In[2] == '_')) | |
3259 | destructor = 1; | |
3260 | #endif | |
3261 | ||
3262 | /* We may need to truncate the symbol, save the hash for later*/ | |
8e86815b | 3263 | result = (strlen (In) > 23) ? hash_string (In) : 0; |
be9618de KR |
3264 | /* |
3265 | * Is there a Psect Attribute to skip?? | |
3266 | */ | |
3267 | if (HAS_PSECT_ATTRIBUTES (In)) | |
3268 | { | |
3269 | /* | |
3270 | * Yes: Skip it | |
3271 | */ | |
3272 | In += PSECT_ATTRIBUTES_STRING_LENGTH; | |
3273 | while (*In) | |
3274 | { | |
3275 | if ((In[0] == '$') && (In[1] == '$')) | |
3276 | { | |
3277 | In += 2; | |
3278 | break; | |
3279 | } | |
3280 | In++; | |
3281 | } | |
3282 | } | |
3283 | ||
3284 | old_name = In; | |
ac24997f KR |
3285 | /* if (strlen (In) > 31 && flag_hash_long_names) |
3286 | as_tsktsk ("Symbol name truncated: %s\n", In); */ | |
be9618de KR |
3287 | /* |
3288 | * Do the case conversion | |
3289 | */ | |
3290 | i = 23; /* Maximum of 23 chars */ | |
3291 | while (*In && (--i >= 0)) | |
3292 | { | |
3293 | Case_Hack_Bits <<= 1; | |
3294 | if (*In == '$') | |
3295 | Saw_Dollar = 1; | |
3296 | if ((destructor == 1) && (i == 21)) | |
3297 | Saw_Dollar = 0; | |
3298 | switch (vms_name_mapping) | |
3299 | { | |
3300 | case 0: | |
ac24997f | 3301 | if (isupper (*In)) { |
be9618de KR |
3302 | *Out++ = *In++; |
3303 | Case_Hack_Bits |= 1; | |
3304 | } else { | |
ac24997f | 3305 | *Out++ = islower (*In) ? toupper (*In++) : *In++; |
be9618de KR |
3306 | } |
3307 | break; | |
3308 | case 3: *Out++ = *In++; | |
3309 | break; | |
3310 | case 2: | |
ac24997f | 3311 | if (islower (*In)) { |
be9618de KR |
3312 | *Out++ = *In++; |
3313 | } else { | |
ac24997f | 3314 | *Out++ = isupper (*In) ? tolower (*In++) : *In++; |
be9618de KR |
3315 | } |
3316 | break; | |
c06e55d9 | 3317 | } |
be9618de KR |
3318 | } |
3319 | /* | |
3320 | * If we saw a dollar sign, we don't do case hacking | |
3321 | */ | |
def66e24 | 3322 | if (flag_no_hash_mixed_case || Saw_Dollar) |
be9618de KR |
3323 | Case_Hack_Bits = 0; |
3324 | ||
3325 | /* | |
3326 | * If we have more than 23 characters and everything is lowercase | |
3327 | * we can insert the full 31 characters | |
3328 | */ | |
3329 | if (*In) | |
3330 | { | |
3331 | /* | |
3332 | * We have more than 23 characters | |
3333 | * If we must add the case hack, then we have truncated the str | |
3334 | */ | |
3335 | pnt = Out; | |
3336 | truncate = 1; | |
3337 | if (Case_Hack_Bits == 0) | |
3338 | { | |
3339 | /* | |
3340 | * And so far they are all lower case: | |
3341 | * Check up to 8 more characters | |
3342 | * and ensure that they are lowercase | |
3343 | */ | |
3344 | for (i = 0; (In[i] != 0) && (i < 8); i++) | |
ac24997f | 3345 | if (isupper (In[i]) && !Saw_Dollar && !flag_no_hash_mixed_case) |
be9618de KR |
3346 | break; |
3347 | ||
3348 | if (In[i] == 0) | |
3349 | truncate = 0; | |
3350 | ||
3351 | if ((i == 8) || (In[i] == 0)) | |
3352 | { | |
3353 | /* | |
3354 | * They are: Copy up to 31 characters | |
3355 | * to the output string | |
3356 | */ | |
3357 | i = 8; | |
3358 | while ((--i >= 0) && (*In)) | |
3359 | switch (vms_name_mapping){ | |
ac24997f | 3360 | case 0: *Out++ = islower (*In) ? toupper (*In++) : *In++; |
be9618de KR |
3361 | break; |
3362 | case 3: *Out++ = *In++; | |
3363 | break; | |
ac24997f | 3364 | case 2: *Out++ = isupper (*In) ? tolower (*In++) : *In++; |
be9618de | 3365 | break; |
c06e55d9 | 3366 | } |
be9618de KR |
3367 | } |
3368 | } | |
3369 | } | |
3370 | /* | |
3371 | * If there were any uppercase characters in the name we | |
3372 | * take on the case hacking string | |
3373 | */ | |
3374 | ||
3375 | /* Old behavior for regular GNU-C compiler */ | |
def66e24 | 3376 | if (!flag_hash_long_names) |
be9618de KR |
3377 | truncate = 0; |
3378 | if ((Case_Hack_Bits != 0) || (truncate == 1)) | |
3379 | { | |
3380 | if (truncate == 0) | |
3381 | { | |
3382 | *Out++ = '_'; | |
3383 | for (i = 0; i < 6; i++) | |
3384 | { | |
3385 | *Out++ = Hex_Table[Case_Hack_Bits & 0xf]; | |
3386 | Case_Hack_Bits >>= 4; | |
3387 | } | |
3388 | *Out++ = 'X'; | |
3389 | } | |
3390 | else | |
3391 | { | |
3392 | Out = pnt; /*Cut back to 23 characters maximum */ | |
3393 | *Out++ = '_'; | |
3394 | for (i = 0; i < 7; i++) | |
3395 | { | |
3396 | init = result & 0x01f; | |
8e86815b | 3397 | *Out++ = (init < 10) ? ('0' + init) : ('A' + init - 10); |
be9618de KR |
3398 | result = result >> 5; |
3399 | } | |
3400 | } | |
3401 | } /*Case Hack */ | |
3402 | /* | |
3403 | * Done | |
3404 | */ | |
3405 | *Out = 0; | |
def66e24 | 3406 | if (truncate == 1 && flag_hash_long_names && flag_show_after_trunc) |
48401fcf | 3407 | as_tsktsk (_("Symbol %s replaced by %s\n"), old_name, new_name); |
be9618de KR |
3408 | } |
3409 | \f | |
3410 | ||
3411 | /* | |
3412 | * Scan a symbol name for a psect attribute specification | |
3413 | */ | |
3414 | #define GLOBALSYMBOL_BIT 0x10000 | |
3415 | #define GLOBALVALUE_BIT 0x20000 | |
3416 | ||
3417 | ||
8e86815b | 3418 | static void |
be9618de | 3419 | VMS_Modify_Psect_Attributes (Name, Attribute_Pointer) |
4b18b7cd | 3420 | const char *Name; |
be9618de KR |
3421 | int *Attribute_Pointer; |
3422 | { | |
3423 | register int i; | |
4b18b7cd | 3424 | register const char *cp; |
be9618de | 3425 | int Negate; |
f2224fe2 | 3426 | static const struct |
be9618de | 3427 | { |
f2224fe2 | 3428 | const char *Name; |
be9618de KR |
3429 | int Value; |
3430 | } Attributes[] = | |
3431 | { | |
3432 | {"PIC", GPS_S_M_PIC}, | |
3433 | {"LIB", GPS_S_M_LIB}, | |
3434 | {"OVR", GPS_S_M_OVR}, | |
3435 | {"REL", GPS_S_M_REL}, | |
3436 | {"GBL", GPS_S_M_GBL}, | |
3437 | {"SHR", GPS_S_M_SHR}, | |
3438 | {"EXE", GPS_S_M_EXE}, | |
3439 | {"RD", GPS_S_M_RD}, | |
3440 | {"WRT", GPS_S_M_WRT}, | |
3441 | {"VEC", GPS_S_M_VEC}, | |
3442 | {"GLOBALSYMBOL", GLOBALSYMBOL_BIT}, | |
3443 | {"GLOBALVALUE", GLOBALVALUE_BIT}, | |
3444 | {0, 0} | |
3445 | }; | |
3446 | ||
3447 | /* | |
3448 | * Kill leading "_" | |
3449 | */ | |
3450 | if (*Name == '_') | |
3451 | Name++; | |
3452 | /* | |
3453 | * Check for a PSECT attribute list | |
3454 | */ | |
3455 | if (!HAS_PSECT_ATTRIBUTES (Name)) | |
3456 | return; /* If not, return */ | |
3457 | /* | |
3458 | * Skip the attribute list indicator | |
3459 | */ | |
3460 | Name += PSECT_ATTRIBUTES_STRING_LENGTH; | |
3461 | /* | |
3462 | * Process the attributes ("_" separated, "$" terminated) | |
3463 | */ | |
3464 | while (*Name != '$') | |
3465 | { | |
3466 | /* | |
3467 | * Assume not negating | |
3468 | */ | |
3469 | Negate = 0; | |
3470 | /* | |
3471 | * Check for "NO" | |
3472 | */ | |
3473 | if ((Name[0] == 'N') && (Name[1] == 'O')) | |
3474 | { | |
3475 | /* | |
3476 | * We are negating (and skip the NO) | |
3477 | */ | |
3478 | Negate = 1; | |
3479 | Name += 2; | |
3480 | } | |
3481 | /* | |
3482 | * Find the token delimiter | |
3483 | */ | |
3484 | cp = Name; | |
3485 | while (*cp && (*cp != '_') && (*cp != '$')) | |
3486 | cp++; | |
3487 | /* | |
3488 | * Look for the token in the attribute list | |
3489 | */ | |
3490 | for (i = 0; Attributes[i].Name; i++) | |
3491 | { | |
3492 | /* | |
3493 | * If the strings match, set/clear the attr. | |
3494 | */ | |
3495 | if (strncmp (Name, Attributes[i].Name, cp - Name) == 0) | |
3496 | { | |
3497 | /* | |
3498 | * Set or clear | |
3499 | */ | |
3500 | if (Negate) | |
3501 | *Attribute_Pointer &= | |
3502 | ~Attributes[i].Value; | |
3503 | else | |
3504 | *Attribute_Pointer |= | |
3505 | Attributes[i].Value; | |
3506 | /* | |
3507 | * Done | |
3508 | */ | |
3509 | break; | |
3510 | } | |
3511 | } | |
3512 | /* | |
3513 | * Now skip the attribute | |
3514 | */ | |
3515 | Name = cp; | |
3516 | if (*Name == '_') | |
3517 | Name++; | |
3518 | } | |
be9618de KR |
3519 | } |
3520 | \f | |
3521 | ||
8e86815b KR |
3522 | #define GBLSYM_REF 0 |
3523 | #define GBLSYM_DEF 1 | |
3524 | #define GBLSYM_VAL 2 | |
d5263ab4 | 3525 | #define GBLSYM_LCL 4 /* not GBL after all... */ |
8e86815b | 3526 | |
be9618de | 3527 | /* |
d5263ab4 | 3528 | * Define a global symbol (or possibly a local one). |
be9618de | 3529 | */ |
8e86815b KR |
3530 | static void |
3531 | VMS_Global_Symbol_Spec (Name, Psect_Number, Psect_Offset, Flags) | |
4b18b7cd | 3532 | const char *Name; |
be9618de KR |
3533 | int Psect_Number; |
3534 | int Psect_Offset; | |
8e86815b | 3535 | int Flags; |
be9618de KR |
3536 | { |
3537 | char Local[32]; | |
3538 | ||
3539 | /* | |
3540 | * We are writing a GSD record | |
3541 | */ | |
3542 | Set_VMS_Object_File_Record (OBJ_S_C_GSD); | |
3543 | /* | |
3544 | * If the buffer is empty we must insert the GSD record type | |
3545 | */ | |
3546 | if (Object_Record_Offset == 0) | |
3547 | PUT_CHAR (OBJ_S_C_GSD); | |
3548 | /* | |
d5263ab4 | 3549 | * We are writing a Global (or local) symbol definition subrecord. |
be9618de | 3550 | */ |
d5263ab4 KR |
3551 | PUT_CHAR ((Flags & GBLSYM_LCL) != 0 ? GSD_S_C_LSY : |
3552 | ((unsigned) Psect_Number <= 255) ? GSD_S_C_SYM : GSD_S_C_SYMW); | |
be9618de KR |
3553 | /* |
3554 | * Data type is undefined | |
3555 | */ | |
3556 | PUT_CHAR (0); | |
3557 | /* | |
3558 | * Switch on Definition/Reference | |
3559 | */ | |
8e86815b | 3560 | if ((Flags & GBLSYM_DEF) == 0) |
be9618de KR |
3561 | { |
3562 | /* | |
8e86815b | 3563 | * Reference |
be9618de | 3564 | */ |
8e86815b | 3565 | PUT_SHORT (((Flags & GBLSYM_VAL) == 0) ? GSY_S_M_REL : 0); |
d5263ab4 KR |
3566 | if ((Flags & GBLSYM_LCL) != 0) /* local symbols have extra field */ |
3567 | PUT_SHORT (Current_Environment); | |
8e86815b KR |
3568 | } |
3569 | else | |
3570 | { | |
3571 | /* | |
3572 | * Definition | |
d5263ab4 | 3573 | *[ assert (LSY_S_M_DEF == GSY_S_M_DEF && LSY_S_M_REL == GSY_S_M_REL); ] |
8e86815b KR |
3574 | */ |
3575 | PUT_SHORT (((Flags & GBLSYM_VAL) == 0) ? | |
3576 | GSY_S_M_DEF | GSY_S_M_REL : GSY_S_M_DEF); | |
d5263ab4 KR |
3577 | if ((Flags & GBLSYM_LCL) != 0) /* local symbols have extra field */ |
3578 | PUT_SHORT (Current_Environment); | |
be9618de KR |
3579 | /* |
3580 | * Psect Number | |
3581 | */ | |
d5263ab4 | 3582 | if ((Flags & GBLSYM_LCL) == 0 && (unsigned) Psect_Number <= 255) |
3c650d09 | 3583 | PUT_CHAR (Psect_Number); |
be9618de | 3584 | else |
3c650d09 | 3585 | PUT_SHORT (Psect_Number); |
be9618de KR |
3586 | /* |
3587 | * Offset | |
3588 | */ | |
3589 | PUT_LONG (Psect_Offset); | |
3590 | } | |
be9618de KR |
3591 | /* |
3592 | * Finally, the global symbol name | |
3593 | */ | |
3594 | VMS_Case_Hack_Symbol (Name, Local); | |
3595 | PUT_COUNTED_STRING (Local); | |
3596 | /* | |
3597 | * Flush the buffer if it is more than 75% full | |
3598 | */ | |
d5263ab4 KR |
3599 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
3600 | Flush_VMS_Object_Record_Buffer (); | |
3601 | } | |
3602 | ||
3603 | /* | |
3604 | * Define an environment to support local symbol references. | |
3605 | * This is just to mollify the linker; we don't actually do | |
3606 | * anything useful with it. | |
3607 | */ | |
3608 | static void | |
3609 | VMS_Local_Environment_Setup (Env_Name) | |
3610 | const char *Env_Name; | |
3611 | { | |
3612 | /* We are writing a GSD record. */ | |
3613 | Set_VMS_Object_File_Record (OBJ_S_C_GSD); | |
3614 | /* If the buffer is empty we must insert the GSD record type. */ | |
3615 | if (Object_Record_Offset == 0) | |
3616 | PUT_CHAR (OBJ_S_C_GSD); | |
3617 | /* We are writing an ENV subrecord. */ | |
3618 | PUT_CHAR (GSD_S_C_ENV); | |
3619 | ||
3620 | ++Current_Environment; /* index of environment being defined */ | |
3621 | ||
3622 | /* ENV$W_FLAGS: we are defining the next environment. It's not nested. */ | |
3623 | PUT_SHORT (ENV_S_M_DEF); | |
3624 | /* ENV$W_ENVINDX: index is always 0 for non-nested definitions. */ | |
3625 | PUT_SHORT (0); | |
3626 | ||
3627 | /* ENV$B_NAMLNG + ENV$T_NAME: environment name in ASCIC format. */ | |
3628 | if (!Env_Name) Env_Name = ""; | |
3629 | PUT_COUNTED_STRING ((char *)Env_Name); | |
3630 | ||
3631 | /* Flush the buffer if it is more than 75% full. */ | |
3632 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) | |
be9618de KR |
3633 | Flush_VMS_Object_Record_Buffer (); |
3634 | } | |
3635 | \f | |
3636 | ||
3637 | /* | |
3638 | * Define a psect | |
3639 | */ | |
3640 | static int | |
3641 | VMS_Psect_Spec (Name, Size, Type, vsp) | |
4b18b7cd | 3642 | const char *Name; |
be9618de | 3643 | int Size; |
5700b874 | 3644 | enum ps_type Type; |
be9618de KR |
3645 | struct VMS_Symbol *vsp; |
3646 | { | |
3647 | char Local[32]; | |
3648 | int Psect_Attributes; | |
3649 | ||
3650 | /* | |
3651 | * Generate the appropriate PSECT flags given the PSECT type | |
3652 | */ | |
5700b874 | 3653 | switch (Type) |
be9618de | 3654 | { |
5700b874 KR |
3655 | case ps_TEXT: |
3656 | /* Text psects are PIC,noOVR,REL,noGBL,SHR,EXE,RD,noWRT. */ | |
3657 | Psect_Attributes = (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_SHR|GPS_S_M_EXE | |
3658 | |GPS_S_M_RD); | |
3659 | break; | |
3660 | case ps_DATA: | |
3661 | /* Data psects are PIC,noOVR,REL,noGBL,noSHR,noEXE,RD,WRT. */ | |
3662 | Psect_Attributes = (GPS_S_M_PIC|GPS_S_M_REL|GPS_S_M_RD|GPS_S_M_WRT); | |
3663 | break; | |
3664 | case ps_COMMON: | |
3665 | /* Common block psects are: PIC,OVR,REL,GBL,SHR,noEXE,RD,WRT. */ | |
3666 | Psect_Attributes = (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL | |
3667 | |GPS_S_M_SHR|GPS_S_M_RD|GPS_S_M_WRT); | |
3668 | break; | |
3669 | case ps_CONST: | |
3670 | /* Const data psects are: PIC,OVR,REL,GBL,SHR,noEXE,RD,noWRT. */ | |
3671 | Psect_Attributes = (GPS_S_M_PIC|GPS_S_M_OVR|GPS_S_M_REL|GPS_S_M_GBL | |
3672 | |GPS_S_M_SHR|GPS_S_M_RD); | |
3673 | break; | |
3674 | default: | |
3675 | /* impossible */ | |
48401fcf | 3676 | error (_("Unknown VMS psect type (%ld)"), (long) Type); |
5700b874 | 3677 | break; |
be9618de KR |
3678 | } |
3679 | /* | |
3680 | * Modify the psect attributes according to any attribute string | |
3681 | */ | |
d5263ab4 KR |
3682 | if (vsp && S_GET_TYPE (vsp->Symbol) == N_ABS) |
3683 | Psect_Attributes |= GLOBALVALUE_BIT; | |
3684 | else if (HAS_PSECT_ATTRIBUTES (Name)) | |
be9618de KR |
3685 | VMS_Modify_Psect_Attributes (Name, &Psect_Attributes); |
3686 | /* | |
3687 | * Check for globalref/def/val. | |
3688 | */ | |
3689 | if ((Psect_Attributes & GLOBALVALUE_BIT) != 0) | |
3690 | { | |
3691 | /* | |
3692 | * globalvalue symbols were generated before. This code | |
3693 | * prevents unsightly psect buildup, and makes sure that | |
3694 | * fixup references are emitted correctly. | |
3695 | */ | |
3696 | vsp->Psect_Index = -1; /* to catch errors */ | |
8e86815b | 3697 | S_SET_TYPE (vsp->Symbol, N_UNDF); /* make refs work */ |
be9618de | 3698 | return 1; /* decrement psect counter */ |
c06e55d9 | 3699 | } |
be9618de KR |
3700 | |
3701 | if ((Psect_Attributes & GLOBALSYMBOL_BIT) != 0) | |
3702 | { | |
3703 | switch (S_GET_RAW_TYPE (vsp->Symbol)) | |
3704 | { | |
3705 | case N_UNDF | N_EXT: | |
3706 | VMS_Global_Symbol_Spec (Name, vsp->Psect_Index, | |
8e86815b | 3707 | vsp->Psect_Offset, GBLSYM_REF); |
be9618de | 3708 | vsp->Psect_Index = -1; |
8e86815b | 3709 | S_SET_TYPE (vsp->Symbol, N_UNDF); |
be9618de KR |
3710 | return 1; /* return and indicate no psect */ |
3711 | case N_DATA | N_EXT: | |
3712 | VMS_Global_Symbol_Spec (Name, vsp->Psect_Index, | |
8e86815b | 3713 | vsp->Psect_Offset, GBLSYM_DEF); |
be9618de KR |
3714 | /* In this case we still generate the psect */ |
3715 | break; | |
3716 | default: | |
48401fcf | 3717 | as_fatal (_("Globalsymbol attribute for symbol %s was unexpected."), |
703139a8 KR |
3718 | Name); |
3719 | break; | |
c06e55d9 KR |
3720 | } /* switch */ |
3721 | } | |
be9618de KR |
3722 | |
3723 | Psect_Attributes &= 0xffff; /* clear out the globalref/def stuff */ | |
3724 | /* | |
3725 | * We are writing a GSD record | |
3726 | */ | |
3727 | Set_VMS_Object_File_Record (OBJ_S_C_GSD); | |
3728 | /* | |
3729 | * If the buffer is empty we must insert the GSD record type | |
3730 | */ | |
3731 | if (Object_Record_Offset == 0) | |
3732 | PUT_CHAR (OBJ_S_C_GSD); | |
3733 | /* | |
3734 | * We are writing a PSECT definition subrecord | |
3735 | */ | |
3736 | PUT_CHAR (GSD_S_C_PSC); | |
3737 | /* | |
3738 | * Psects are always LONGWORD aligned | |
3739 | */ | |
3740 | PUT_CHAR (2); | |
3741 | /* | |
3742 | * Specify the psect attributes | |
3743 | */ | |
3744 | PUT_SHORT (Psect_Attributes); | |
3745 | /* | |
3746 | * Specify the allocation | |
3747 | */ | |
3748 | PUT_LONG (Size); | |
3749 | /* | |
3750 | * Finally, the psect name | |
3751 | */ | |
3752 | VMS_Case_Hack_Symbol (Name, Local); | |
3753 | PUT_COUNTED_STRING (Local); | |
3754 | /* | |
3755 | * Flush the buffer if it is more than 75% full | |
3756 | */ | |
3c650d09 | 3757 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
3758 | Flush_VMS_Object_Record_Buffer (); |
3759 | return 0; | |
3760 | } | |
3761 | \f | |
3762 | ||
53499500 KR |
3763 | /* Given the pointer to a symbol we calculate how big the data at the |
3764 | symbol is. We do this by looking for the next symbol (local or global) | |
3765 | which will indicate the start of another datum. */ | |
3766 | ||
3767 | static offsetT | |
3768 | VMS_Initialized_Data_Size (s0P, End_Of_Data) | |
3769 | register symbolS *s0P; | |
3770 | unsigned End_Of_Data; | |
be9618de | 3771 | { |
53499500 KR |
3772 | symbolS *s1P; |
3773 | valueT s0P_val = S_GET_VALUE (s0P), s1P_val, | |
3774 | nearest_val = (valueT) End_Of_Data; | |
be9618de | 3775 | |
53499500 KR |
3776 | /* Find the nearest symbol what follows this one. */ |
3777 | for (s1P = symbol_rootP; s1P; s1P = symbol_next (s1P)) | |
be9618de | 3778 | { |
53499500 KR |
3779 | /* The data type must match. */ |
3780 | if (S_GET_TYPE (s1P) != N_DATA) | |
be9618de | 3781 | continue; |
53499500 KR |
3782 | s1P_val = S_GET_VALUE (s1P); |
3783 | if (s1P_val > s0P_val && s1P_val < nearest_val) | |
3784 | nearest_val = s1P_val; | |
be9618de | 3785 | } |
53499500 KR |
3786 | /* Calculate its size. */ |
3787 | return (offsetT) (nearest_val - s0P_val); | |
be9618de | 3788 | } |
4596bc7a | 3789 | |
53499500 KR |
3790 | |
3791 | /* Check symbol names for the Psect hack with a globalvalue, and then | |
3792 | generate globalvalues for those that have it. */ | |
3793 | ||
8e86815b | 3794 | static void |
be9618de KR |
3795 | VMS_Emit_Globalvalues (text_siz, data_siz, Data_Segment) |
3796 | unsigned text_siz; | |
3797 | unsigned data_siz; | |
3798 | char *Data_Segment; | |
3799 | { | |
3800 | register symbolS *sp; | |
3801 | char *stripped_name, *Name; | |
3802 | int Size; | |
3803 | int Psect_Attributes; | |
3804 | int globalvalue; | |
d5263ab4 | 3805 | int typ, abstyp; |
be9618de KR |
3806 | |
3807 | /* | |
3808 | * Scan the symbol table for globalvalues, and emit def/ref when | |
3809 | * required. These will be caught again later and converted to | |
3810 | * N_UNDF | |
3811 | */ | |
3812 | for (sp = symbol_rootP; sp; sp = sp->sy_next) | |
3813 | { | |
8e86815b | 3814 | typ = S_GET_RAW_TYPE (sp); |
d5263ab4 | 3815 | abstyp = ((typ & ~N_EXT) == N_ABS); |
be9618de KR |
3816 | /* |
3817 | * See if this is something we want to look at. | |
3818 | */ | |
d5263ab4 KR |
3819 | if (!abstyp && |
3820 | typ != (N_DATA | N_EXT) && | |
8e86815b | 3821 | typ != (N_UNDF | N_EXT)) |
be9618de KR |
3822 | continue; |
3823 | /* | |
3824 | * See if this has globalvalue specification. | |
3825 | */ | |
3826 | Name = S_GET_NAME (sp); | |
3827 | ||
d5263ab4 KR |
3828 | if (abstyp) |
3829 | { | |
3830 | stripped_name = 0; | |
3831 | Psect_Attributes = GLOBALVALUE_BIT; | |
3832 | } | |
3833 | else if (HAS_PSECT_ATTRIBUTES (Name)) | |
3834 | { | |
3835 | stripped_name = (char *) xmalloc (strlen (Name) + 1); | |
3836 | strcpy (stripped_name, Name); | |
3837 | Psect_Attributes = 0; | |
3838 | VMS_Modify_Psect_Attributes (stripped_name, &Psect_Attributes); | |
3839 | } | |
3840 | else | |
be9618de KR |
3841 | continue; |
3842 | ||
be9618de KR |
3843 | if ((Psect_Attributes & GLOBALVALUE_BIT) != 0) |
3844 | { | |
8e86815b | 3845 | switch (typ) |
be9618de | 3846 | { |
d5263ab4 KR |
3847 | case N_ABS: |
3848 | /* Local symbol references will want | |
3849 | to have an environment defined. */ | |
3850 | if (Current_Environment < 0) | |
3851 | VMS_Local_Environment_Setup (".N_ABS"); | |
3852 | VMS_Global_Symbol_Spec (Name, 0, | |
ac24997f | 3853 | S_GET_VALUE (sp), |
d5263ab4 KR |
3854 | GBLSYM_DEF|GBLSYM_VAL|GBLSYM_LCL); |
3855 | break; | |
3856 | case N_ABS | N_EXT: | |
3857 | VMS_Global_Symbol_Spec (Name, 0, | |
ac24997f | 3858 | S_GET_VALUE (sp), |
d5263ab4 KR |
3859 | GBLSYM_DEF|GBLSYM_VAL); |
3860 | break; | |
be9618de | 3861 | case N_UNDF | N_EXT: |
8e86815b | 3862 | VMS_Global_Symbol_Spec (stripped_name, 0, 0, GBLSYM_VAL); |
be9618de KR |
3863 | break; |
3864 | case N_DATA | N_EXT: | |
3865 | Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz); | |
3866 | if (Size > 4) | |
48401fcf | 3867 | error (_("Invalid data type for globalvalue")); |
494a6c05 KR |
3868 | globalvalue = md_chars_to_number (Data_Segment + |
3869 | S_GET_VALUE (sp) - text_siz , Size); | |
be9618de KR |
3870 | /* Three times for good luck. The linker seems to get confused |
3871 | if there are fewer than three */ | |
8e86815b KR |
3872 | VMS_Global_Symbol_Spec (stripped_name, 0, 0, GBLSYM_VAL); |
3873 | VMS_Global_Symbol_Spec (stripped_name, 0, globalvalue, | |
3874 | GBLSYM_DEF|GBLSYM_VAL); | |
3875 | VMS_Global_Symbol_Spec (stripped_name, 0, globalvalue, | |
3876 | GBLSYM_DEF|GBLSYM_VAL); | |
be9618de KR |
3877 | break; |
3878 | default: | |
48401fcf | 3879 | as_warn (_("Invalid globalvalue of %s"), stripped_name); |
be9618de | 3880 | break; |
c06e55d9 KR |
3881 | } /* switch */ |
3882 | } /* if */ | |
8e86815b | 3883 | if (stripped_name) free (stripped_name); /* clean up */ |
c06e55d9 | 3884 | } /* for */ |
be9618de KR |
3885 | |
3886 | } | |
3887 | \f | |
3888 | ||
3889 | /* | |
3890 | * Define a procedure entry pt/mask | |
3891 | */ | |
8e86815b | 3892 | static void |
be9618de KR |
3893 | VMS_Procedure_Entry_Pt (Name, Psect_Number, Psect_Offset, Entry_Mask) |
3894 | char *Name; | |
3895 | int Psect_Number; | |
3896 | int Psect_Offset; | |
3897 | int Entry_Mask; | |
3898 | { | |
3899 | char Local[32]; | |
3900 | ||
3901 | /* | |
3902 | * We are writing a GSD record | |
3903 | */ | |
3904 | Set_VMS_Object_File_Record (OBJ_S_C_GSD); | |
3905 | /* | |
3906 | * If the buffer is empty we must insert the GSD record type | |
3907 | */ | |
3908 | if (Object_Record_Offset == 0) | |
3909 | PUT_CHAR (OBJ_S_C_GSD); | |
3910 | /* | |
3911 | * We are writing a Procedure Entry Pt/Mask subrecord | |
3912 | */ | |
b003a2d9 | 3913 | PUT_CHAR (((unsigned) Psect_Number <= 255) ? GSD_S_C_EPM : GSD_S_C_EPMW); |
be9618de KR |
3914 | /* |
3915 | * Data type is undefined | |
3916 | */ | |
3917 | PUT_CHAR (0); | |
3918 | /* | |
3919 | * Flags = "RELOCATABLE" and "DEFINED" | |
3920 | */ | |
3921 | PUT_SHORT (GSY_S_M_DEF | GSY_S_M_REL); | |
3922 | /* | |
3923 | * Psect Number | |
3924 | */ | |
b003a2d9 | 3925 | if ((unsigned) Psect_Number <= 255) |
3c650d09 | 3926 | PUT_CHAR (Psect_Number); |
be9618de | 3927 | else |
3c650d09 | 3928 | PUT_SHORT (Psect_Number); |
be9618de KR |
3929 | /* |
3930 | * Offset | |
3931 | */ | |
3932 | PUT_LONG (Psect_Offset); | |
3933 | /* | |
3934 | * Entry mask | |
3935 | */ | |
3936 | PUT_SHORT (Entry_Mask); | |
3937 | /* | |
3938 | * Finally, the global symbol name | |
3939 | */ | |
3940 | VMS_Case_Hack_Symbol (Name, Local); | |
3941 | PUT_COUNTED_STRING (Local); | |
3942 | /* | |
3943 | * Flush the buffer if it is more than 75% full | |
3944 | */ | |
3c650d09 | 3945 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
3946 | Flush_VMS_Object_Record_Buffer (); |
3947 | } | |
3948 | \f | |
3949 | ||
3950 | /* | |
3951 | * Set the current location counter to a particular Psect and Offset | |
3952 | */ | |
8e86815b | 3953 | static void |
be9618de KR |
3954 | VMS_Set_Psect (Psect_Index, Offset, Record_Type) |
3955 | int Psect_Index; | |
3956 | int Offset; | |
3957 | int Record_Type; | |
3958 | { | |
3959 | /* | |
3960 | * We are writing a "Record_Type" record | |
3961 | */ | |
3962 | Set_VMS_Object_File_Record (Record_Type); | |
3963 | /* | |
3964 | * If the buffer is empty we must insert the record type | |
3965 | */ | |
3966 | if (Object_Record_Offset == 0) | |
3967 | PUT_CHAR (Record_Type); | |
3968 | /* | |
b003a2d9 | 3969 | * Stack the Psect base + Offset |
be9618de | 3970 | */ |
b003a2d9 | 3971 | vms_tir_stack_psect (Psect_Index, Offset, 0); |
be9618de KR |
3972 | /* |
3973 | * Set relocation base | |
3974 | */ | |
3975 | PUT_CHAR (TIR_S_C_CTL_SETRB); | |
3976 | /* | |
3977 | * Flush the buffer if it is more than 75% full | |
3978 | */ | |
3c650d09 | 3979 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
3980 | Flush_VMS_Object_Record_Buffer (); |
3981 | } | |
3982 | \f | |
3983 | ||
3984 | /* | |
3985 | * Store repeated immediate data in current Psect | |
3986 | */ | |
8e86815b | 3987 | static void |
be9618de KR |
3988 | VMS_Store_Repeated_Data (Repeat_Count, Pointer, Size, Record_Type) |
3989 | int Repeat_Count; | |
3990 | register char *Pointer; | |
3991 | int Size; | |
3992 | int Record_Type; | |
3993 | { | |
3994 | ||
3995 | /* | |
3996 | * Ignore zero bytes/words/longwords | |
3997 | */ | |
703139a8 KR |
3998 | switch (Size) |
3999 | { | |
4000 | case 4: | |
58abad7d KR |
4001 | if (Pointer[3] != 0 || Pointer[2] != 0) break; |
4002 | /* else FALLTHRU */ | |
703139a8 | 4003 | case 2: |
58abad7d KR |
4004 | if (Pointer[1] != 0) break; |
4005 | /* else FALLTHRU */ | |
703139a8 | 4006 | case 1: |
58abad7d | 4007 | if (Pointer[0] != 0) break; |
703139a8 KR |
4008 | /* zero value */ |
4009 | return; | |
4010 | default: | |
703139a8 KR |
4011 | break; |
4012 | } | |
be9618de KR |
4013 | /* |
4014 | * If the data is too big for a TIR_S_C_STO_RIVB sub-record | |
4015 | * then we do it manually | |
4016 | */ | |
4017 | if (Size > 255) | |
4018 | { | |
4019 | while (--Repeat_Count >= 0) | |
4020 | VMS_Store_Immediate_Data (Pointer, Size, Record_Type); | |
4021 | return; | |
4022 | } | |
4023 | /* | |
4024 | * We are writing a "Record_Type" record | |
4025 | */ | |
4026 | Set_VMS_Object_File_Record (Record_Type); | |
4027 | /* | |
4028 | * If the buffer is empty we must insert record type | |
4029 | */ | |
4030 | if (Object_Record_Offset == 0) | |
4031 | PUT_CHAR (Record_Type); | |
4032 | /* | |
4033 | * Stack the repeat count | |
4034 | */ | |
4035 | PUT_CHAR (TIR_S_C_STA_LW); | |
4036 | PUT_LONG (Repeat_Count); | |
4037 | /* | |
4038 | * And now the command and its data | |
4039 | */ | |
4040 | PUT_CHAR (TIR_S_C_STO_RIVB); | |
4041 | PUT_CHAR (Size); | |
4042 | while (--Size >= 0) | |
4043 | PUT_CHAR (*Pointer++); | |
4044 | /* | |
4045 | * Flush the buffer if it is more than 75% full | |
4046 | */ | |
3c650d09 | 4047 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
4048 | Flush_VMS_Object_Record_Buffer (); |
4049 | } | |
4050 | \f | |
4051 | ||
4052 | /* | |
4053 | * Store a Position Independent Reference | |
4054 | */ | |
8e86815b | 4055 | static void |
be9618de KR |
4056 | VMS_Store_PIC_Symbol_Reference (Symbol, Offset, PC_Relative, |
4057 | Psect, Psect_Offset, Record_Type) | |
4b18b7cd | 4058 | symbolS *Symbol; |
be9618de KR |
4059 | int Offset; |
4060 | int PC_Relative; | |
4061 | int Psect; | |
4062 | int Psect_Offset; | |
4063 | int Record_Type; | |
4064 | { | |
703139a8 | 4065 | register struct VMS_Symbol *vsp = Symbol->sy_obj; |
be9618de | 4066 | char Local[32]; |
d5263ab4 | 4067 | int local_sym = 0; |
be9618de KR |
4068 | |
4069 | /* | |
4070 | * We are writing a "Record_Type" record | |
4071 | */ | |
4072 | Set_VMS_Object_File_Record (Record_Type); | |
4073 | /* | |
4074 | * If the buffer is empty we must insert record type | |
4075 | */ | |
4076 | if (Object_Record_Offset == 0) | |
4077 | PUT_CHAR (Record_Type); | |
4078 | /* | |
3c650d09 KR |
4079 | * Set to the appropriate offset in the Psect. |
4080 | * For a Code reference we need to fix the operand | |
4081 | * specifier as well, so back up 1 byte; | |
4082 | * for a Data reference we just store HERE. | |
be9618de | 4083 | */ |
3c650d09 KR |
4084 | VMS_Set_Psect (Psect, |
4085 | PC_Relative ? Psect_Offset - 1 : Psect_Offset, | |
4086 | Record_Type); | |
be9618de KR |
4087 | /* |
4088 | * Make sure we are still generating a "Record Type" record | |
4089 | */ | |
4090 | if (Object_Record_Offset == 0) | |
4091 | PUT_CHAR (Record_Type); | |
4092 | /* | |
4093 | * Dispatch on symbol type (so we can stack its value) | |
4094 | */ | |
4095 | switch (S_GET_RAW_TYPE (Symbol)) | |
4096 | { | |
4097 | /* | |
4098 | * Global symbol | |
4099 | */ | |
d5263ab4 KR |
4100 | case N_ABS: |
4101 | local_sym = 1; | |
4102 | /*FALLTHRU*/ | |
4103 | case N_ABS | N_EXT: | |
be9618de KR |
4104 | #ifdef NOT_VAX_11_C_COMPATIBLE |
4105 | case N_UNDF | N_EXT: | |
4106 | case N_DATA | N_EXT: | |
4107 | #endif /* NOT_VAX_11_C_COMPATIBLE */ | |
4108 | case N_UNDF: | |
4109 | case N_TEXT | N_EXT: | |
4110 | /* | |
4111 | * Get the symbol name (case hacked) | |
4112 | */ | |
4113 | VMS_Case_Hack_Symbol (S_GET_NAME (Symbol), Local); | |
4114 | /* | |
4115 | * Stack the global symbol value | |
4116 | */ | |
d5263ab4 KR |
4117 | if (!local_sym) |
4118 | { | |
4119 | PUT_CHAR (TIR_S_C_STA_GBL); | |
4120 | } | |
4121 | else | |
4122 | { | |
4123 | /* Local symbols have an extra field. */ | |
4124 | PUT_CHAR (TIR_S_C_STA_LSY); | |
4125 | PUT_SHORT (Current_Environment); | |
4126 | } | |
be9618de KR |
4127 | PUT_COUNTED_STRING (Local); |
4128 | if (Offset) | |
4129 | { | |
4130 | /* | |
4131 | * Stack the longword offset | |
4132 | */ | |
4133 | PUT_CHAR (TIR_S_C_STA_LW); | |
4134 | PUT_LONG (Offset); | |
4135 | /* | |
4136 | * Add the two, leaving the result on the stack | |
4137 | */ | |
4138 | PUT_CHAR (TIR_S_C_OPR_ADD); | |
4139 | } | |
4140 | break; | |
4141 | /* | |
4142 | * Uninitialized local data | |
4143 | */ | |
4144 | case N_BSS: | |
4145 | /* | |
4146 | * Stack the Psect (+offset) | |
4147 | */ | |
b003a2d9 KR |
4148 | vms_tir_stack_psect (vsp->Psect_Index, |
4149 | vsp->Psect_Offset + Offset, | |
4150 | 0); | |
be9618de KR |
4151 | break; |
4152 | /* | |
4153 | * Local text | |
4154 | */ | |
4155 | case N_TEXT: | |
4156 | /* | |
4157 | * Stack the Psect (+offset) | |
4158 | */ | |
b003a2d9 KR |
4159 | vms_tir_stack_psect (vsp->Psect_Index, |
4160 | S_GET_VALUE (Symbol) + Offset, | |
4161 | 0); | |
be9618de KR |
4162 | break; |
4163 | /* | |
4164 | * Initialized local or global data | |
4165 | */ | |
4166 | case N_DATA: | |
4167 | #ifndef NOT_VAX_11_C_COMPATIBLE | |
4168 | case N_UNDF | N_EXT: | |
4169 | case N_DATA | N_EXT: | |
4170 | #endif /* NOT_VAX_11_C_COMPATIBLE */ | |
4171 | /* | |
4172 | * Stack the Psect (+offset) | |
4173 | */ | |
b003a2d9 KR |
4174 | vms_tir_stack_psect (vsp->Psect_Index, |
4175 | vsp->Psect_Offset + Offset, | |
4176 | 0); | |
be9618de KR |
4177 | break; |
4178 | } | |
4179 | /* | |
4180 | * Store either a code or data reference | |
4181 | */ | |
4182 | PUT_CHAR (PC_Relative ? TIR_S_C_STO_PICR : TIR_S_C_STO_PIDR); | |
4183 | /* | |
4184 | * Flush the buffer if it is more than 75% full | |
4185 | */ | |
3c650d09 | 4186 | if (Object_Record_Offset > (sizeof (Object_Record_Buffer) * 3 / 4)) |
be9618de KR |
4187 | Flush_VMS_Object_Record_Buffer (); |
4188 | } | |
4189 | \f | |
4190 | ||
4191 | /* | |
4192 | * Check in the text area for an indirect pc-relative reference | |
4193 | * and fix it up with addressing mode 0xff [PC indirect] | |
4194 | * | |
4195 | * THIS SHOULD BE REPLACED BY THE USE OF TIR_S_C_STO_PIRR IN THE | |
4196 | * PIC CODE GENERATING FIXUP ROUTINE. | |
4197 | */ | |
8e86815b | 4198 | static void |
be9618de KR |
4199 | VMS_Fix_Indirect_Reference (Text_Psect, Offset, fragP, text_frag_root) |
4200 | int Text_Psect; | |
4201 | int Offset; | |
4202 | register fragS *fragP; | |
4b18b7cd | 4203 | fragS *text_frag_root; |
be9618de KR |
4204 | { |
4205 | /* | |
4206 | * The addressing mode byte is 1 byte before the address | |
4207 | */ | |
4208 | Offset--; | |
4209 | /* | |
4210 | * Is it in THIS frag?? | |
4211 | */ | |
4212 | if ((Offset < fragP->fr_address) || | |
4213 | (Offset >= (fragP->fr_address + fragP->fr_fix))) | |
4214 | { | |
4215 | /* | |
4216 | * We need to search for the fragment containing this | |
4217 | * Offset | |
4218 | */ | |
4219 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) | |
4220 | { | |
4221 | if ((Offset >= fragP->fr_address) && | |
4222 | (Offset < (fragP->fr_address + fragP->fr_fix))) | |
4223 | break; | |
4224 | } | |
4225 | /* | |
4226 | * If we couldn't find the frag, things are BAD!! | |
4227 | */ | |
4228 | if (fragP == 0) | |
48401fcf | 4229 | error (_("Couldn't find fixup fragment when checking for indirect reference")); |
be9618de KR |
4230 | } |
4231 | /* | |
4232 | * Check for indirect PC relative addressing mode | |
4233 | */ | |
4234 | if (fragP->fr_literal[Offset - fragP->fr_address] == (char) 0xff) | |
4235 | { | |
3c650d09 | 4236 | static char Address_Mode = (char) 0xff; |
be9618de KR |
4237 | |
4238 | /* | |
4239 | * Yes: Store the indirect mode back into the image | |
4240 | * to fix up the damage done by STO_PICR | |
4241 | */ | |
4242 | VMS_Set_Psect (Text_Psect, Offset, OBJ_S_C_TIR); | |
4243 | VMS_Store_Immediate_Data (&Address_Mode, 1, OBJ_S_C_TIR); | |
4244 | } | |
4245 | } | |
4246 | \f | |
4596bc7a | 4247 | |
be9618de KR |
4248 | /* |
4249 | * If the procedure "main()" exists we have to add the instruction | |
4250 | * "jsb c$main_args" at the beginning to be compatible with VAX-11 "C". | |
3c650d09 KR |
4251 | * |
4252 | * FIXME: the macro name `HACK_DEC_C_STARTUP' should be renamed | |
4253 | * to `HACK_VAXCRTL_STARTUP' because Digital's compiler | |
4254 | * named "DEC C" uses run-time library "DECC$SHR", but this | |
4255 | * startup code is for "VAXCRTL", the library for Digital's | |
4256 | * older "VAX C". Also, this extra code isn't needed for | |
4257 | * supporting gcc because it already generates the VAXCRTL | |
4258 | * startup call when compiling main(). The reference to | |
4259 | * `flag_hash_long_names' looks very suspicious too; | |
4260 | * probably an old-style command line option was inadvertently | |
4261 | * overloaded here, then blindly converted into the new one. | |
be9618de | 4262 | */ |
8e86815b KR |
4263 | void |
4264 | vms_check_for_main () | |
be9618de KR |
4265 | { |
4266 | register symbolS *symbolP; | |
4267 | #ifdef HACK_DEC_C_STARTUP /* JF */ | |
4268 | register struct frchain *frchainP; | |
4269 | register fragS *fragP; | |
4270 | register fragS **prev_fragPP; | |
4271 | register struct fix *fixP; | |
4272 | register fragS *New_Frag; | |
4273 | int i; | |
4274 | #endif /* HACK_DEC_C_STARTUP */ | |
4275 | ||
4b18b7cd | 4276 | symbolP = (symbolS *) symbol_find ("_main"); |
be9618de KR |
4277 | if (symbolP && !S_IS_DEBUG (symbolP) && |
4278 | S_IS_EXTERNAL (symbolP) && (S_GET_TYPE (symbolP) == N_TEXT)) | |
4279 | { | |
4280 | #ifdef HACK_DEC_C_STARTUP | |
def66e24 | 4281 | if (!flag_hash_long_names) |
be9618de KR |
4282 | { |
4283 | #endif | |
4284 | /* | |
4285 | * Remember the entry point symbol | |
4286 | */ | |
4287 | Entry_Point_Symbol = symbolP; | |
4288 | #ifdef HACK_DEC_C_STARTUP | |
4289 | } | |
4290 | else | |
4291 | { | |
4292 | /* | |
4293 | * Scan all the fragment chains for the one with "_main" | |
4294 | * (Actually we know the fragment from the symbol, but we need | |
4295 | * the previous fragment so we can change its pointer) | |
4296 | */ | |
4297 | frchainP = frchain_root; | |
4298 | while (frchainP) | |
4299 | { | |
4300 | /* | |
4301 | * Scan all the fragments in this chain, remembering | |
4302 | * the "previous fragment" | |
4303 | */ | |
4304 | prev_fragPP = &frchainP->frch_root; | |
4305 | fragP = frchainP->frch_root; | |
4306 | while (fragP && (fragP != frchainP->frch_last)) | |
4307 | { | |
4308 | /* | |
4309 | * Is this the fragment? | |
4310 | */ | |
4311 | if (fragP == symbolP->sy_frag) | |
4312 | { | |
4313 | /* | |
4314 | * Yes: Modify the fragment by replacing | |
4315 | * it with a new fragment. | |
4316 | */ | |
4317 | New_Frag = (fragS *) | |
4318 | xmalloc (sizeof (*New_Frag) + | |
4319 | fragP->fr_fix + | |
4320 | fragP->fr_var + | |
4321 | 5); | |
4322 | /* | |
4323 | * The fragments are the same except | |
4324 | * that the "fixed" area is larger | |
4325 | */ | |
4326 | *New_Frag = *fragP; | |
4327 | New_Frag->fr_fix += 6; | |
4328 | /* | |
4329 | * Copy the literal data opening a hole | |
4330 | * 2 bytes after "_main" (i.e. just after | |
4331 | * the entry mask). Into which we place | |
4332 | * the JSB instruction. | |
4333 | */ | |
4334 | New_Frag->fr_literal[0] = fragP->fr_literal[0]; | |
4335 | New_Frag->fr_literal[1] = fragP->fr_literal[1]; | |
4336 | New_Frag->fr_literal[2] = 0x16; /* Jsb */ | |
4337 | New_Frag->fr_literal[3] = 0xef; | |
4338 | New_Frag->fr_literal[4] = 0; | |
4339 | New_Frag->fr_literal[5] = 0; | |
4340 | New_Frag->fr_literal[6] = 0; | |
4341 | New_Frag->fr_literal[7] = 0; | |
4342 | for (i = 2; i < fragP->fr_fix + fragP->fr_var; i++) | |
4343 | New_Frag->fr_literal[i + 6] = | |
4344 | fragP->fr_literal[i]; | |
4345 | /* | |
4346 | * Now replace the old fragment with the | |
4347 | * newly generated one. | |
4348 | */ | |
4349 | *prev_fragPP = New_Frag; | |
4350 | /* | |
4351 | * Remember the entry point symbol | |
4352 | */ | |
4353 | Entry_Point_Symbol = symbolP; | |
4354 | /* | |
4355 | * Scan the text area fixup structures | |
4356 | * as offsets in the fragment may have | |
4357 | * changed | |
4358 | */ | |
4359 | for (fixP = text_fix_root; fixP; fixP = fixP->fx_next) | |
4360 | { | |
4361 | /* | |
4362 | * Look for references to this | |
4363 | * fragment. | |
4364 | */ | |
4365 | if (fixP->fx_frag == fragP) | |
4366 | { | |
4367 | /* | |
4368 | * Change the fragment | |
4369 | * pointer | |
4370 | */ | |
4371 | fixP->fx_frag = New_Frag; | |
4372 | /* | |
4373 | * If the offset is after | |
4374 | * the entry mask we need | |
4375 | * to account for the JSB | |
4376 | * instruction we just | |
4377 | * inserted. | |
4378 | */ | |
4379 | if (fixP->fx_where >= 2) | |
4380 | fixP->fx_where += 6; | |
4381 | } | |
4382 | } | |
4383 | /* | |
4384 | * Scan the symbols as offsets in the | |
4385 | * fragment may have changed | |
4386 | */ | |
4387 | for (symbolP = symbol_rootP; | |
4388 | symbolP; | |
4389 | symbolP = symbol_next (symbolP)) | |
4390 | { | |
4391 | /* | |
4392 | * Look for references to this | |
4393 | * fragment. | |
4394 | */ | |
4395 | if (symbolP->sy_frag == fragP) | |
4396 | { | |
4397 | /* | |
4398 | * Change the fragment | |
4399 | * pointer | |
4400 | */ | |
4401 | symbolP->sy_frag = New_Frag; | |
4402 | /* | |
4403 | * If the offset is after | |
4404 | * the entry mask we need | |
4405 | * to account for the JSB | |
4406 | * instruction we just | |
4407 | * inserted. | |
4408 | */ | |
4409 | if (S_GET_VALUE (symbolP) >= 2) | |
85051959 ILT |
4410 | S_SET_VALUE (symbolP, |
4411 | S_GET_VALUE (symbolP) + 6); | |
be9618de KR |
4412 | } |
4413 | } | |
4414 | /* | |
4415 | * Make a symbol reference to | |
4416 | * "_c$main_args" so we can get | |
4417 | * its address inserted into the | |
4418 | * JSB instruction. | |
4419 | */ | |
4420 | symbolP = (symbolS *) xmalloc (sizeof (*symbolP)); | |
a9918088 | 4421 | S_SET_NAME (symbolP, "_C$MAIN_ARGS"); |
be9618de | 4422 | S_SET_TYPE (symbolP, N_UNDF); |
a9918088 KR |
4423 | S_SET_OTHER (symbolP, 0); |
4424 | S_SET_DESC (symbolP, 0); | |
85051959 | 4425 | S_SET_VALUE (symbolP, 0); |
be9618de KR |
4426 | symbolP->sy_name_offset = 0; |
4427 | symbolP->sy_number = 0; | |
703139a8 | 4428 | symbolP->sy_obj = 0; |
be9618de | 4429 | symbolP->sy_frag = New_Frag; |
5868b1fe ILT |
4430 | symbolP->sy_resolved = 0; |
4431 | symbolP->sy_resolving = 0; | |
be9618de | 4432 | /* this actually inserts at the beginning of the list */ |
3c650d09 KR |
4433 | symbol_append (symbol_rootP, symbolP, |
4434 | &symbol_rootP, &symbol_lastP); | |
be9618de KR |
4435 | |
4436 | symbol_rootP = symbolP; | |
4437 | /* | |
4438 | * Generate a text fixup structure | |
4439 | * to get "_c$main_args" stored into the | |
4440 | * JSB instruction. | |
4441 | */ | |
4442 | fixP = (struct fix *) xmalloc (sizeof (*fixP)); | |
4443 | fixP->fx_frag = New_Frag; | |
4444 | fixP->fx_where = 4; | |
4445 | fixP->fx_addsy = symbolP; | |
4446 | fixP->fx_subsy = 0; | |
4447 | fixP->fx_offset = 0; | |
703139a8 | 4448 | fixP->fx_size = 4; |
be9618de KR |
4449 | fixP->fx_pcrel = 1; |
4450 | fixP->fx_next = text_fix_root; | |
4451 | text_fix_root = fixP; | |
4452 | /* | |
4453 | * Now make sure we exit from the loop | |
4454 | */ | |
4455 | frchainP = 0; | |
4456 | break; | |
4457 | } | |
4458 | /* | |
4459 | * Try the next fragment | |
4460 | */ | |
4461 | prev_fragPP = &fragP->fr_next; | |
4462 | fragP = fragP->fr_next; | |
4463 | } | |
4464 | /* | |
4465 | * Try the next fragment chain | |
4466 | */ | |
4467 | if (frchainP) | |
4468 | frchainP = frchainP->frch_next; | |
4469 | } | |
4470 | } | |
4471 | #endif /* HACK_DEC_C_STARTUP */ | |
4472 | } | |
4473 | } | |
4474 | \f | |
4b18b7cd | 4475 | |
0b415077 KR |
4476 | /* |
4477 | * Beginning of vms_write_object_file(). | |
4478 | */ | |
4479 | ||
4480 | static | |
4481 | struct vms_obj_state { | |
4482 | ||
4483 | /* Next program section index to use. */ | |
4484 | int psect_number; | |
4485 | ||
4486 | /* Psect index for code. Always ends up #0. */ | |
4487 | int text_psect; | |
4488 | ||
4489 | /* Psect index for initialized static variables. */ | |
4490 | int data_psect; | |
4491 | ||
4492 | /* Psect index for uninitialized static variables. */ | |
4493 | int bss_psect; | |
4494 | ||
4495 | /* Number of bytes used for local symbol data. */ | |
4496 | int local_initd_data_size; | |
4497 | ||
4498 | /* Dynamic buffer for initialized data. */ | |
4499 | char *data_segment; | |
4500 | ||
4501 | } vms_obj_state; | |
4502 | ||
4503 | #define Psect_Number vms_obj_state.psect_number | |
4504 | #define Text_Psect vms_obj_state.text_psect | |
4505 | #define Data_Psect vms_obj_state.data_psect | |
4506 | #define Bss_Psect vms_obj_state.bss_psect | |
4507 | #define Local_Initd_Data_Size vms_obj_state.local_initd_data_size | |
4508 | #define Data_Segment vms_obj_state.data_segment | |
4509 | ||
4510 | ||
4b18b7cd | 4511 | #define IS_GXX_VTABLE(symP) (strncmp (S_GET_NAME (symP), "__vt.", 5) == 0) |
0b415077 | 4512 | \f |
4b18b7cd | 4513 | |
53499500 KR |
4514 | /* Perform text segment fixups. */ |
4515 | ||
0b415077 KR |
4516 | static void |
4517 | vms_fixup_text_section (text_siz, text_frag_root, data_frag_root) | |
be9618de | 4518 | unsigned text_siz; |
0b415077 KR |
4519 | struct frag *text_frag_root; |
4520 | struct frag *data_frag_root; | |
be9618de KR |
4521 | { |
4522 | register fragS *fragP; | |
be9618de | 4523 | register struct fix *fixP; |
0b415077 KR |
4524 | offsetT dif; |
4525 | ||
4526 | /* Scan the text fragments. */ | |
4527 | for (fragP = text_frag_root; fragP; fragP = fragP->fr_next) | |
4528 | { | |
4529 | /* Stop if we get to the data fragments. */ | |
4530 | if (fragP == data_frag_root) | |
4531 | break; | |
4532 | /* Ignore fragments with no data. */ | |
4533 | if ((fragP->fr_fix == 0) && (fragP->fr_var == 0)) | |
4534 | continue; | |
4535 | /* Go the the appropriate offset in the Text Psect. */ | |
4536 | VMS_Set_Psect (Text_Psect, fragP->fr_address, OBJ_S_C_TIR); | |
4537 | /* Store the "fixed" part. */ | |
4538 | if (fragP->fr_fix) | |
4539 | VMS_Store_Immediate_Data (fragP->fr_literal, | |
4540 | fragP->fr_fix, | |
4541 | OBJ_S_C_TIR); | |
4542 | /* Store the "variable" part. */ | |
4543 | if (fragP->fr_var && fragP->fr_offset) | |
4544 | VMS_Store_Repeated_Data (fragP->fr_offset, | |
4545 | fragP->fr_literal + fragP->fr_fix, | |
4546 | fragP->fr_var, | |
4547 | OBJ_S_C_TIR); | |
4548 | } /* text frag loop */ | |
be9618de KR |
4549 | |
4550 | /* | |
0b415077 KR |
4551 | * Now we go through the text segment fixups and generate |
4552 | * TIR records to fix up addresses within the Text Psect. | |
be9618de | 4553 | */ |
0b415077 | 4554 | for (fixP = text_fix_root; fixP; fixP = fixP->fx_next) |
be9618de | 4555 | { |
0b415077 KR |
4556 | /* We DO handle the case of "Symbol - Symbol" as |
4557 | long as it is in the same segment. */ | |
4558 | if (fixP->fx_subsy && fixP->fx_addsy) | |
be9618de | 4559 | { |
0b415077 KR |
4560 | /* They need to be in the same segment. */ |
4561 | if (S_GET_RAW_TYPE (fixP->fx_subsy) != | |
4562 | S_GET_RAW_TYPE (fixP->fx_addsy)) | |
48401fcf | 4563 | error (_("Fixup data addsy and subsy don't have the same type")); |
0b415077 KR |
4564 | /* And they need to be in one that we can check the psect on. */ |
4565 | if ((S_GET_TYPE (fixP->fx_addsy) != N_DATA) && | |
4566 | (S_GET_TYPE (fixP->fx_addsy) != N_TEXT)) | |
48401fcf | 4567 | error (_("Fixup data addsy and subsy don't have an appropriate type")); |
0b415077 KR |
4568 | /* This had better not be PC relative! */ |
4569 | if (fixP->fx_pcrel) | |
48401fcf | 4570 | error (_("Fixup data is erroneously \"pcrel\"")); |
0b415077 KR |
4571 | /* Subtract their values to get the difference. */ |
4572 | dif = S_GET_VALUE (fixP->fx_addsy) - S_GET_VALUE (fixP->fx_subsy); | |
4573 | md_number_to_chars (Local, (valueT)dif, fixP->fx_size); | |
4574 | /* Now generate the fixup object records; | |
4575 | set the psect and store the data. */ | |
4576 | VMS_Set_Psect (Text_Psect, | |
4577 | fixP->fx_where + fixP->fx_frag->fr_address, | |
4578 | OBJ_S_C_TIR); | |
4579 | VMS_Store_Immediate_Data (Local, | |
4580 | fixP->fx_size, | |
4581 | OBJ_S_C_TIR); | |
4582 | continue; /* done with this fixup */ | |
4583 | } /* if fx_subsy && fx_addsy */ | |
4584 | /* Size will HAVE to be "long". */ | |
4585 | if (fixP->fx_size != 4) | |
48401fcf | 4586 | error (_("Fixup datum is not a longword")); |
0b415077 KR |
4587 | /* Symbol must be "added" (if it is ever |
4588 | subtracted we can fix this assumption). */ | |
4589 | if (fixP->fx_addsy == 0) | |
48401fcf | 4590 | error (_("Fixup datum is not \"fixP->fx_addsy\"")); |
0b415077 KR |
4591 | /* Store the symbol value in a PIC fashion. */ |
4592 | VMS_Store_PIC_Symbol_Reference (fixP->fx_addsy, | |
4593 | fixP->fx_offset, | |
4594 | fixP->fx_pcrel, | |
4595 | Text_Psect, | |
4596 | fixP->fx_where + fixP->fx_frag->fr_address, | |
4597 | OBJ_S_C_TIR); | |
4598 | /* | |
4599 | * Check for indirect address reference, which has to be fixed up | |
4600 | * (as the linker will screw it up with TIR_S_C_STO_PICR)... | |
4601 | */ | |
4602 | if (fixP->fx_pcrel) | |
4603 | VMS_Fix_Indirect_Reference (Text_Psect, | |
4604 | fixP->fx_where + fixP->fx_frag->fr_address, | |
4605 | fixP->fx_frag, | |
4606 | text_frag_root); | |
4607 | } /* text fix loop */ | |
4608 | } | |
4609 | \f | |
4610 | ||
53499500 KR |
4611 | /* Create a buffer holding the data segment. */ |
4612 | ||
0b415077 | 4613 | static void |
ac24997f | 4614 | synthesize_data_segment (data_siz, text_siz, data_frag_root) |
0b415077 KR |
4615 | unsigned data_siz, text_siz; |
4616 | struct frag *data_frag_root; | |
4617 | { | |
4618 | register fragS *fragP; | |
4619 | char *fill_literal; | |
4620 | long fill_size, count, i; | |
4621 | ||
4622 | /* Allocate the data segment. */ | |
4623 | Data_Segment = (char *) xmalloc (data_siz); | |
4624 | /* Run through the data fragments, filling in the segment. */ | |
4625 | for (fragP = data_frag_root; fragP; fragP = fragP->fr_next) | |
4626 | { | |
4627 | i = fragP->fr_address - text_siz; | |
4628 | if (fragP->fr_fix) | |
4629 | memcpy (Data_Segment + i, fragP->fr_literal, fragP->fr_fix); | |
4630 | i += fragP->fr_fix; | |
be9618de | 4631 | |
0b415077 KR |
4632 | if ((fill_size = fragP->fr_var) != 0) |
4633 | { | |
be9618de | 4634 | fill_literal = fragP->fr_literal + fragP->fr_fix; |
0b415077 KR |
4635 | for (count = fragP->fr_offset; count; count--) |
4636 | { | |
4637 | memcpy (Data_Segment + i, fill_literal, fill_size); | |
4638 | i += fill_size; | |
4639 | } | |
be9618de | 4640 | } |
0b415077 | 4641 | } /* data frag loop */ |
be9618de | 4642 | |
0b415077 KR |
4643 | return; |
4644 | } | |
be9618de | 4645 | |
53499500 KR |
4646 | |
4647 | /* Perform data segment fixups. */ | |
4648 | ||
0b415077 KR |
4649 | static void |
4650 | vms_fixup_data_section (data_siz, text_siz) | |
4651 | unsigned data_siz, text_siz; | |
4652 | { | |
4653 | register struct VMS_Symbol *vsp; | |
4654 | register struct fix *fixP; | |
4655 | register symbolS *sp; | |
4656 | addressT fr_address; | |
4657 | offsetT dif; | |
4658 | valueT val; | |
be9618de | 4659 | |
0b415077 KR |
4660 | /* Run through all the data symbols and store the data. */ |
4661 | for (vsp = VMS_Symbols; vsp; vsp = vsp->Next) | |
be9618de | 4662 | { |
0b415077 KR |
4663 | /* Ignore anything other than data symbols. */ |
4664 | if (S_GET_TYPE (vsp->Symbol) != N_DATA) | |
4665 | continue; | |
4666 | /* Set the Psect + Offset. */ | |
4667 | VMS_Set_Psect (vsp->Psect_Index, | |
4668 | vsp->Psect_Offset, | |
4669 | OBJ_S_C_TIR); | |
4670 | /* Store the data. */ | |
4671 | val = S_GET_VALUE (vsp->Symbol); | |
4672 | VMS_Store_Immediate_Data (Data_Segment + val - text_siz, | |
4673 | vsp->Size, | |
4674 | OBJ_S_C_TIR); | |
4675 | } /* N_DATA symbol loop */ | |
4676 | ||
4677 | /* | |
4678 | * Now we go through the data segment fixups and generate | |
4679 | * TIR records to fix up addresses within the Data Psects. | |
4680 | */ | |
4681 | for (fixP = data_fix_root; fixP; fixP = fixP->fx_next) | |
4682 | { | |
4683 | /* Find the symbol for the containing datum. */ | |
4684 | for (vsp = VMS_Symbols; vsp; vsp = vsp->Next) | |
4685 | { | |
4686 | /* Only bother with Data symbols. */ | |
4687 | sp = vsp->Symbol; | |
4688 | if (S_GET_TYPE (sp) != N_DATA) | |
4689 | continue; | |
4690 | /* Ignore symbol if After fixup. */ | |
4691 | val = S_GET_VALUE (sp); | |
4692 | fr_address = fixP->fx_frag->fr_address; | |
4693 | if (val > fixP->fx_where + fr_address) | |
4694 | continue; | |
4695 | /* See if the datum is here. */ | |
4696 | if (val + vsp->Size <= fixP->fx_where + fr_address) | |
4697 | continue; | |
4698 | /* We DO handle the case of "Symbol - Symbol" as | |
4699 | long as it is in the same segment. */ | |
4700 | if (fixP->fx_subsy && fixP->fx_addsy) | |
4701 | { | |
4702 | /* They need to be in the same segment. */ | |
4703 | if (S_GET_RAW_TYPE (fixP->fx_subsy) != | |
4704 | S_GET_RAW_TYPE (fixP->fx_addsy)) | |
48401fcf | 4705 | error (_("Fixup data addsy and subsy don't have the same type")); |
0b415077 KR |
4706 | /* And they need to be in one that we can check the psect on. */ |
4707 | if ((S_GET_TYPE (fixP->fx_addsy) != N_DATA) && | |
4708 | (S_GET_TYPE (fixP->fx_addsy) != N_TEXT)) | |
48401fcf | 4709 | error (_("Fixup data addsy and subsy don't have an appropriate type")); |
0b415077 KR |
4710 | /* This had better not be PC relative! */ |
4711 | if (fixP->fx_pcrel) | |
48401fcf | 4712 | error (_("Fixup data is erroneously \"pcrel\"")); |
0b415077 KR |
4713 | /* Subtract their values to get the difference. */ |
4714 | dif = S_GET_VALUE (fixP->fx_addsy) - S_GET_VALUE (fixP->fx_subsy); | |
4715 | md_number_to_chars (Local, (valueT)dif, fixP->fx_size); | |
4716 | /* | |
4717 | * Now generate the fixup object records; | |
4718 | * set the psect and store the data. | |
4719 | */ | |
4720 | VMS_Set_Psect (vsp->Psect_Index, | |
4721 | fr_address + fixP->fx_where | |
4722 | - val + vsp->Psect_Offset, | |
4723 | OBJ_S_C_TIR); | |
4724 | VMS_Store_Immediate_Data (Local, | |
4725 | fixP->fx_size, | |
4726 | OBJ_S_C_TIR); | |
4727 | break; /* done with this fixup */ | |
4728 | } | |
4729 | /* Size will HAVE to be "long". */ | |
4730 | if (fixP->fx_size != 4) | |
48401fcf | 4731 | error (_("Fixup datum is not a longword")); |
0b415077 KR |
4732 | /* Symbol must be "added" (if it is ever |
4733 | subtracted we can fix this assumption). */ | |
4734 | if (fixP->fx_addsy == 0) | |
48401fcf | 4735 | error (_("Fixup datum is not \"fixP->fx_addsy\"")); |
0b415077 KR |
4736 | /* Store the symbol value in a PIC fashion. */ |
4737 | VMS_Store_PIC_Symbol_Reference (fixP->fx_addsy, | |
4738 | fixP->fx_offset, | |
4739 | fixP->fx_pcrel, | |
4740 | vsp->Psect_Index, | |
4741 | fr_address + fixP->fx_where | |
4742 | - val + vsp->Psect_Offset, | |
4743 | OBJ_S_C_TIR); | |
4744 | /* Done with this fixup. */ | |
4745 | break; | |
4746 | } /* vms_symbol loop */ | |
4747 | ||
4748 | } /* data fix loop */ | |
4749 | } | |
4750 | \f | |
4751 | ||
53499500 KR |
4752 | /* Define symbols for the linker. */ |
4753 | ||
0b415077 KR |
4754 | static void |
4755 | global_symbol_directory (text_siz, data_siz) | |
4756 | unsigned text_siz, data_siz; | |
4757 | { | |
4758 | register fragS *fragP; | |
4759 | register symbolS *sp; | |
4760 | register struct VMS_Symbol *vsp; | |
4761 | int Globalref, define_as_global_symbol; | |
4762 | ||
be9618de | 4763 | #ifndef gxx_bug_fixed |
0b415077 | 4764 | /* |
be9618de KR |
4765 | * The g++ compiler does not write out external references to vtables |
4766 | * correctly. Check for this and holler if we see it happening. | |
4767 | * If that compiler bug is ever fixed we can remove this. | |
4b18b7cd | 4768 | * (Jun'95: gcc 2.7.0's cc1plus still exhibits this behavior.) |
be9618de | 4769 | */ |
0b415077 | 4770 | for (sp = symbol_rootP; sp; sp = symbol_next (sp)) |
4b18b7cd KR |
4771 | if (S_GET_RAW_TYPE (sp) == N_UNDF && IS_GXX_VTABLE (sp)) |
4772 | { | |
4773 | S_SET_TYPE (sp, N_UNDF | N_EXT); | |
4774 | S_SET_OTHER (sp, 1); | |
48401fcf TT |
4775 | as_warn (_("g++ wrote an extern reference to `%s' as a routine.\nI will fix it, but I hope that it was note really a routine."), |
4776 | S_GET_NAME (sp)); | |
be9618de | 4777 | } |
be9618de | 4778 | #endif /* gxx_bug_fixed */ |
0b415077 | 4779 | |
be9618de | 4780 | /* |
0b415077 | 4781 | * Now scan the symbols and emit the appropriate GSD records |
be9618de KR |
4782 | */ |
4783 | for (sp = symbol_rootP; sp; sp = symbol_next (sp)) | |
4784 | { | |
0b415077 | 4785 | define_as_global_symbol = 0; |
53499500 | 4786 | vsp = 0; |
0b415077 | 4787 | /* Dispatch on symbol type. */ |
be9618de KR |
4788 | switch (S_GET_RAW_TYPE (sp)) |
4789 | { | |
0b415077 KR |
4790 | |
4791 | /* Global uninitialized data. */ | |
be9618de | 4792 | case N_UNDF | N_EXT: |
0b415077 KR |
4793 | /* Make a VMS data symbol entry. */ |
4794 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); | |
be9618de KR |
4795 | vsp->Symbol = sp; |
4796 | vsp->Size = S_GET_VALUE (sp); | |
4797 | vsp->Psect_Index = Psect_Number++; | |
4798 | vsp->Psect_Offset = 0; | |
4799 | vsp->Next = VMS_Symbols; | |
4800 | VMS_Symbols = vsp; | |
703139a8 | 4801 | sp->sy_obj = vsp; |
0b415077 | 4802 | /* Make the psect for this data. */ |
4b18b7cd KR |
4803 | Globalref = VMS_Psect_Spec (S_GET_NAME (sp), |
4804 | vsp->Size, | |
5700b874 | 4805 | S_GET_OTHER (sp) ? ps_CONST : ps_COMMON, |
4b18b7cd | 4806 | vsp); |
be9618de KR |
4807 | if (Globalref) |
4808 | Psect_Number--; | |
4809 | #ifdef NOT_VAX_11_C_COMPATIBLE | |
0b415077 KR |
4810 | define_as_global_symbol = 1; |
4811 | #else | |
4812 | /* See if this is an external vtable. We want to help the | |
4813 | linker find these things in libraries, so we make a symbol | |
4814 | reference. This is not compatible with VAX-C usage for | |
4815 | variables, but since vtables are only used internally by | |
4816 | g++, we can get away with this hack. */ | |
4817 | define_as_global_symbol = IS_GXX_VTABLE (sp); | |
4818 | #endif | |
be9618de | 4819 | break; |
0b415077 KR |
4820 | |
4821 | /* Local uninitialized data. */ | |
be9618de | 4822 | case N_BSS: |
0b415077 KR |
4823 | /* Make a VMS data symbol entry. */ |
4824 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); | |
be9618de KR |
4825 | vsp->Symbol = sp; |
4826 | vsp->Size = 0; | |
4827 | vsp->Psect_Index = Bss_Psect; | |
b003a2d9 | 4828 | vsp->Psect_Offset = S_GET_VALUE (sp) - bss_address_frag.fr_address; |
be9618de KR |
4829 | vsp->Next = VMS_Symbols; |
4830 | VMS_Symbols = vsp; | |
703139a8 | 4831 | sp->sy_obj = vsp; |
be9618de | 4832 | break; |
0b415077 KR |
4833 | |
4834 | /* Global initialized data. */ | |
be9618de | 4835 | case N_DATA | N_EXT: |
0b415077 KR |
4836 | /* Make a VMS data symbol entry. */ |
4837 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); | |
be9618de | 4838 | vsp->Symbol = sp; |
0509f064 | 4839 | vsp->Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz); |
be9618de KR |
4840 | vsp->Psect_Index = Psect_Number++; |
4841 | vsp->Psect_Offset = 0; | |
4842 | vsp->Next = VMS_Symbols; | |
4843 | VMS_Symbols = vsp; | |
703139a8 | 4844 | sp->sy_obj = vsp; |
0b415077 | 4845 | /* Make its psect. */ |
703139a8 KR |
4846 | Globalref = VMS_Psect_Spec (S_GET_NAME (sp), |
4847 | vsp->Size, | |
5700b874 | 4848 | S_GET_OTHER (sp) ? ps_CONST : ps_COMMON, |
703139a8 | 4849 | vsp); |
be9618de KR |
4850 | if (Globalref) |
4851 | Psect_Number--; | |
4852 | #ifdef NOT_VAX_11_C_COMPATIBLE | |
0b415077 KR |
4853 | define_as_global_symbol = 1; |
4854 | #else | |
4855 | /* See N_UNDF|N_EXT above for explanation. */ | |
4856 | define_as_global_symbol = IS_GXX_VTABLE (sp); | |
4857 | #endif | |
be9618de | 4858 | break; |
0b415077 KR |
4859 | |
4860 | /* Local initialized data. */ | |
be9618de | 4861 | case N_DATA: |
58abad7d KR |
4862 | { |
4863 | char *sym_name = S_GET_NAME (sp); | |
4864 | ||
4865 | /* Always suppress local numeric labels. */ | |
53499500 KR |
4866 | if (sym_name && strcmp (sym_name, FAKE_LABEL_NAME) == 0) |
4867 | break; | |
4868 | ||
4869 | /* Make a VMS data symbol entry. */ | |
4870 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); | |
4871 | vsp->Symbol = sp; | |
4872 | vsp->Size = VMS_Initialized_Data_Size (sp, text_siz + data_siz); | |
4873 | vsp->Psect_Index = Data_Psect; | |
4874 | vsp->Psect_Offset = Local_Initd_Data_Size; | |
4875 | Local_Initd_Data_Size += vsp->Size; | |
4876 | vsp->Next = VMS_Symbols; | |
4877 | VMS_Symbols = vsp; | |
4878 | sp->sy_obj = vsp; | |
58abad7d | 4879 | } |
be9618de | 4880 | break; |
0b415077 KR |
4881 | |
4882 | /* Global Text definition. */ | |
be9618de KR |
4883 | case N_TEXT | N_EXT: |
4884 | { | |
4885 | unsigned short Entry_Mask; | |
4886 | ||
0b415077 | 4887 | /* Get the entry mask. */ |
be9618de | 4888 | fragP = sp->sy_frag; |
4b18b7cd KR |
4889 | /* First frag might be empty if we're generating listings. |
4890 | So skip empty rs_fill frags. */ | |
4891 | while (fragP && fragP->fr_type == rs_fill && fragP->fr_fix == 0) | |
4892 | fragP = fragP->fr_next; | |
abf434d8 KR |
4893 | |
4894 | /* If first frag doesn't contain the data, what do we do? | |
4895 | If it's possibly smaller than two bytes, that would | |
4896 | imply that the entry mask is not stored where we're | |
4897 | expecting it. | |
4898 | ||
4899 | If you can find a test case that triggers this, report | |
4900 | it (and tell me what the entry mask field ought to be), | |
4901 | and I'll try to fix it. KR */ | |
4902 | if (fragP->fr_fix < 2) | |
4903 | abort (); | |
4904 | ||
0509f064 KR |
4905 | Entry_Mask = (fragP->fr_literal[0] & 0x00ff) | |
4906 | ((fragP->fr_literal[1] & 0x00ff) << 8); | |
0b415077 | 4907 | /* Define the procedure entry point. */ |
be9618de KR |
4908 | VMS_Procedure_Entry_Pt (S_GET_NAME (sp), |
4909 | Text_Psect, | |
4910 | S_GET_VALUE (sp), | |
4911 | Entry_Mask); | |
4912 | break; | |
4913 | } | |
0b415077 KR |
4914 | |
4915 | /* Local Text definition. */ | |
be9618de | 4916 | case N_TEXT: |
0b415077 | 4917 | /* Make a VMS data symbol entry. */ |
be9618de KR |
4918 | if (Text_Psect != -1) |
4919 | { | |
0b415077 | 4920 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); |
be9618de KR |
4921 | vsp->Symbol = sp; |
4922 | vsp->Size = 0; | |
4923 | vsp->Psect_Index = Text_Psect; | |
4924 | vsp->Psect_Offset = S_GET_VALUE (sp); | |
4925 | vsp->Next = VMS_Symbols; | |
4926 | VMS_Symbols = vsp; | |
703139a8 | 4927 | sp->sy_obj = vsp; |
be9618de KR |
4928 | } |
4929 | break; | |
0b415077 KR |
4930 | |
4931 | /* Global Reference. */ | |
be9618de | 4932 | case N_UNDF: |
0b415077 | 4933 | /* Make a GSD global symbol reference record. */ |
be9618de KR |
4934 | VMS_Global_Symbol_Spec (S_GET_NAME (sp), |
4935 | 0, | |
4936 | 0, | |
8e86815b | 4937 | GBLSYM_REF); |
be9618de | 4938 | break; |
0b415077 KR |
4939 | |
4940 | /* Absolute symbol. */ | |
d5263ab4 KR |
4941 | case N_ABS: |
4942 | case N_ABS | N_EXT: | |
0b415077 KR |
4943 | /* gcc doesn't generate these; |
4944 | VMS_Emit_Globalvalue handles them though. */ | |
4945 | vsp = (struct VMS_Symbol *) xmalloc (sizeof *vsp); | |
d5263ab4 | 4946 | vsp->Symbol = sp; |
4b18b7cd | 4947 | vsp->Size = 4; /* always assume 32 bits */ |
d5263ab4 KR |
4948 | vsp->Psect_Index = 0; |
4949 | vsp->Psect_Offset = S_GET_VALUE (sp); | |
4950 | vsp->Next = VMS_Symbols; | |
4951 | VMS_Symbols = vsp; | |
4952 | sp->sy_obj = vsp; | |
4953 | break; | |
0b415077 KR |
4954 | |
4955 | /* Anything else. */ | |
be9618de | 4956 | default: |
0b415077 | 4957 | /* Ignore STAB symbols, including .stabs emitted by g++. */ |
be9618de KR |
4958 | if (S_IS_DEBUG (sp) || (S_GET_TYPE (sp) == 22)) |
4959 | break; | |
4960 | /* | |
4b18b7cd | 4961 | * Error otherwise. |
be9618de | 4962 | */ |
48401fcf | 4963 | as_tsktsk (_("unhandled stab type %d"), S_GET_TYPE (sp)); |
be9618de KR |
4964 | break; |
4965 | } | |
0b415077 KR |
4966 | |
4967 | /* Global symbols have different linkage than external variables. */ | |
4968 | if (define_as_global_symbol) | |
4969 | VMS_Global_Symbol_Spec (S_GET_NAME (sp), | |
4970 | vsp->Psect_Index, | |
4971 | 0, | |
4972 | GBLSYM_DEF); | |
4973 | } | |
4974 | ||
4975 | return; | |
4976 | } | |
4977 | \f | |
4978 | ||
53499500 KR |
4979 | /* Output debugger symbol table information for symbols which |
4980 | are local to a specific routine. */ | |
4981 | ||
0b415077 KR |
4982 | static void |
4983 | local_symbols_DST (s0P, Current_Routine) | |
4984 | symbolS *s0P, *Current_Routine; | |
4985 | { | |
4986 | symbolS *s1P; | |
4987 | char *s0P_name, *pnt0, *pnt1; | |
4988 | ||
4989 | s0P_name = S_GET_NAME (s0P); | |
d57bf0e0 | 4990 | if (*s0P_name++ != '_') |
0b415077 KR |
4991 | return; |
4992 | ||
4993 | for (s1P = Current_Routine; s1P; s1P = symbol_next (s1P)) | |
4994 | { | |
4995 | #if 0 /* redundant; RAW_TYPE != N_FUN suffices */ | |
4996 | if (!S_IS_DEBUG (s1P)) | |
4997 | continue; | |
4998 | #endif | |
4999 | if (S_GET_RAW_TYPE (s1P) != N_FUN) | |
5000 | continue; | |
5001 | pnt0 = s0P_name; | |
5002 | pnt1 = S_GET_NAME (s1P); | |
5003 | /* We assume the two strings are never exactly equal... */ | |
5004 | while (*pnt0++ == *pnt1++) | |
5005 | { | |
5006 | } | |
5007 | /* Found it if s0P name is exhausted and s1P name has ":F" or ":f" next. | |
5008 | Note: both pointers have advanced one past the non-matching char. */ | |
5009 | if ((*pnt1 == 'F' || *pnt1 == 'f') && *--pnt1 == ':' && *--pnt0 == '\0') | |
5010 | { | |
5011 | Define_Routine (s1P, 0, Current_Routine, Text_Psect); | |
5012 | return; | |
5013 | } | |
be9618de | 5014 | } |
0b415077 KR |
5015 | } |
5016 | ||
53499500 KR |
5017 | |
5018 | /* Construct and output the debug symbol table. */ | |
5019 | ||
0b415077 KR |
5020 | static void |
5021 | vms_build_DST (text_siz) | |
5022 | unsigned text_siz; | |
5023 | { | |
5024 | register symbolS *symbolP; | |
5025 | symbolS *Current_Routine = 0; | |
5026 | struct input_file *Cur_File = 0; | |
5027 | offsetT Cur_Offset = -1; | |
5028 | int Cur_Line_Number = 0; | |
5029 | int File_Number = 0; | |
5030 | int Debugger_Offset = 0; | |
5031 | int file_available; | |
5032 | int dsc; | |
5033 | offsetT val; | |
5034 | ||
53499500 | 5035 | /* Write the Traceback Begin Module record. */ |
0b415077 KR |
5036 | VMS_TBT_Module_Begin (); |
5037 | ||
5038 | /* | |
5039 | * Output debugging info for global variables and static variables | |
5040 | * that are not specific to one routine. We also need to examine | |
5041 | * all stabs directives, to find the definitions to all of the | |
5042 | * advanced data types, and this is done by VMS_LSYM_Parse. This | |
5043 | * needs to be done before any definitions are output to the object | |
5044 | * file, since there can be forward references in the stabs | |
5045 | * directives. When through with parsing, the text of the stabs | |
5046 | * directive is altered, with the definitions removed, so that later | |
5047 | * passes will see directives as they would be written if the type | |
5048 | * were already defined. | |
5049 | * | |
5050 | * We also look for files and include files, and make a list of | |
5051 | * them. We examine the source file numbers to establish the actual | |
5052 | * lines that code was generated from, and then generate offsets. | |
be9618de | 5053 | */ |
0b415077 KR |
5054 | VMS_LSYM_Parse (); |
5055 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) | |
be9618de | 5056 | { |
0b415077 KR |
5057 | /* Only deal with STAB symbols here. */ |
5058 | if (!S_IS_DEBUG (symbolP)) | |
5059 | continue; | |
be9618de | 5060 | /* |
0b415077 | 5061 | * Dispatch on STAB type. |
be9618de | 5062 | */ |
0b415077 | 5063 | switch (S_GET_RAW_TYPE (symbolP)) |
be9618de | 5064 | { |
0b415077 KR |
5065 | case N_SLINE: |
5066 | dsc = S_GET_DESC (symbolP); | |
5067 | if (dsc > Cur_File->max_line) | |
5068 | Cur_File->max_line = dsc; | |
5069 | if (dsc < Cur_File->min_line) | |
5070 | Cur_File->min_line = dsc; | |
5071 | break; | |
5072 | case N_SO: | |
5073 | Cur_File = find_file (symbolP); | |
5074 | Cur_File->flag = 1; | |
5075 | Cur_File->min_line = 1; | |
5076 | break; | |
5077 | case N_SOL: | |
5078 | Cur_File = find_file (symbolP); | |
5079 | break; | |
5080 | case N_GSYM: | |
5081 | VMS_GSYM_Parse (symbolP, Text_Psect); | |
5082 | break; | |
5083 | case N_LCSYM: | |
5084 | VMS_LCSYM_Parse (symbolP, Text_Psect); | |
5085 | break; | |
5086 | case N_FUN: /* For static constant symbols */ | |
5087 | case N_STSYM: | |
5088 | VMS_STSYM_Parse (symbolP, Text_Psect); | |
5089 | break; | |
5090 | default: | |
5091 | break; | |
5092 | } /* switch */ | |
5093 | } /* for */ | |
5094 | ||
5095 | /* | |
5096 | * Now we take a quick sweep through the files and assign offsets | |
5097 | * to each one. This will essentially be the starting line number to | |
5098 | * the debugger for each file. Output the info for the debugger to | |
5099 | * specify the files, and then tell it how many lines to use. | |
5100 | */ | |
5101 | for (Cur_File = file_root; Cur_File; Cur_File = Cur_File->next) | |
5102 | { | |
5103 | if (Cur_File->max_line == 0) | |
5104 | continue; | |
5105 | if ((strncmp (Cur_File->name, "GNU_GXX_INCLUDE:", 16) == 0) && | |
5106 | !flag_debug) | |
5107 | continue; | |
5108 | if ((strncmp (Cur_File->name, "GNU_CC_INCLUDE:", 15) == 0) && | |
5109 | !flag_debug) | |
5110 | continue; | |
5111 | /* show a few extra lines at the start of the region selected */ | |
5112 | if (Cur_File->min_line > 2) | |
5113 | Cur_File->min_line -= 2; | |
5114 | Cur_File->offset = Debugger_Offset - Cur_File->min_line + 1; | |
5115 | Debugger_Offset += Cur_File->max_line - Cur_File->min_line + 1; | |
5116 | if (Cur_File->same_file_fpnt) | |
5117 | { | |
5118 | Cur_File->file_number = Cur_File->same_file_fpnt->file_number; | |
5119 | } | |
5120 | else | |
5121 | { | |
5122 | Cur_File->file_number = ++File_Number; | |
5123 | file_available = VMS_TBT_Source_File (Cur_File->name, | |
5124 | Cur_File->file_number); | |
5125 | if (!file_available) | |
be9618de | 5126 | { |
0b415077 KR |
5127 | Cur_File->file_number = 0; |
5128 | File_Number--; | |
5129 | continue; | |
be9618de KR |
5130 | } |
5131 | } | |
0b415077 KR |
5132 | VMS_TBT_Source_Lines (Cur_File->file_number, |
5133 | Cur_File->min_line, | |
5134 | Cur_File->max_line - Cur_File->min_line + 1); | |
5135 | } /* for */ | |
5136 | Cur_File = (struct input_file *) NULL; | |
5137 | ||
be9618de | 5138 | /* |
0b415077 KR |
5139 | * Scan the symbols and write out the routines |
5140 | * (this makes the assumption that symbols are in | |
5141 | * order of ascending text segment offset) | |
be9618de | 5142 | */ |
0b415077 | 5143 | for (symbolP = symbol_rootP; symbolP; symbolP = symbol_next (symbolP)) |
be9618de KR |
5144 | { |
5145 | /* | |
0b415077 | 5146 | * Deal with text symbols. |
be9618de | 5147 | */ |
0b415077 | 5148 | if (!S_IS_DEBUG (symbolP) && S_GET_TYPE (symbolP) == N_TEXT) |
be9618de KR |
5149 | { |
5150 | /* | |
0b415077 | 5151 | * Ignore symbols starting with "L", as they are local symbols. |
be9618de | 5152 | */ |
0b415077 | 5153 | if (*S_GET_NAME (symbolP) == 'L') |
be9618de KR |
5154 | continue; |
5155 | /* | |
0b415077 | 5156 | * If there is a routine start defined, terminate it. |
be9618de | 5157 | */ |
0b415077 KR |
5158 | if (Current_Routine) |
5159 | VMS_TBT_Routine_End (text_siz, Current_Routine); | |
be9618de | 5160 | |
be9618de | 5161 | /* |
0b415077 KR |
5162 | * Check for & skip dummy labels like "gcc_compiled.". |
5163 | * They're identified by the IN_DEFAULT_SECTION flag. | |
be9618de | 5164 | */ |
0b415077 KR |
5165 | if ((S_GET_OTHER (symbolP) & IN_DEFAULT_SECTION) != 0 && |
5166 | S_GET_VALUE (symbolP) == 0) | |
5167 | continue; | |
be9618de | 5168 | /* |
0b415077 | 5169 | * Store the routine begin traceback info. |
be9618de | 5170 | */ |
0b415077 KR |
5171 | VMS_TBT_Routine_Begin (symbolP, Text_Psect); |
5172 | Current_Routine = symbolP; | |
be9618de | 5173 | /* |
0b415077 | 5174 | * Define symbols local to this routine. |
be9618de | 5175 | */ |
0b415077 | 5176 | local_symbols_DST (symbolP, Current_Routine); |
be9618de | 5177 | /* |
0b415077 | 5178 | * Done |
be9618de | 5179 | */ |
0b415077 | 5180 | continue; |
be9618de | 5181 | |
be9618de KR |
5182 | } |
5183 | /* | |
0b415077 | 5184 | * Deal with STAB symbols. |
be9618de | 5185 | */ |
0b415077 | 5186 | else if (S_IS_DEBUG (symbolP)) |
be9618de KR |
5187 | { |
5188 | /* | |
0b415077 | 5189 | * Dispatch on STAB type. |
be9618de | 5190 | */ |
0b415077 | 5191 | switch (S_GET_RAW_TYPE (symbolP)) |
be9618de | 5192 | { |
0b415077 KR |
5193 | /* |
5194 | * Line number | |
5195 | */ | |
5196 | case N_SLINE: | |
5197 | /* Offset the line into the correct portion of the file. */ | |
5198 | if (Cur_File->file_number == 0) | |
5199 | break; | |
5200 | val = S_GET_VALUE (symbolP); | |
5201 | /* Sometimes the same offset gets several source lines | |
5202 | assigned to it. We should be selective about which | |
5203 | lines we allow, we should prefer lines that are in | |
5204 | the main source file when debugging inline functions. */ | |
5205 | if (val == Cur_Offset && Cur_File->file_number != 1) | |
5206 | break; | |
5207 | ||
5208 | /* calculate actual debugger source line */ | |
5209 | dsc = S_GET_DESC (symbolP) + Cur_File->offset; | |
5210 | S_SET_DESC (symbolP, dsc); | |
be9618de | 5211 | /* |
0b415077 | 5212 | * Define PC/Line correlation. |
be9618de | 5213 | */ |
0b415077 | 5214 | if (Cur_Offset == -1) |
be9618de | 5215 | { |
be9618de | 5216 | /* |
0b415077 | 5217 | * First N_SLINE; set up initial correlation. |
be9618de | 5218 | */ |
0b415077 KR |
5219 | VMS_TBT_Line_PC_Correlation (dsc, |
5220 | val, | |
5221 | Text_Psect, | |
5222 | 0); | |
5223 | } | |
5224 | else if ((dsc - Cur_Line_Number) <= 0) | |
5225 | { | |
be9618de | 5226 | /* |
0b415077 KR |
5227 | * Line delta is not +ve, we need to close the line and |
5228 | * start a new PC/Line correlation. | |
be9618de | 5229 | */ |
0b415077 KR |
5230 | VMS_TBT_Line_PC_Correlation (0, |
5231 | val - Cur_Offset, | |
5232 | 0, | |
5233 | -1); | |
5234 | VMS_TBT_Line_PC_Correlation (dsc, | |
5235 | val, | |
5236 | Text_Psect, | |
5237 | 0); | |
5238 | } | |
5239 | else | |
5240 | { | |
be9618de | 5241 | /* |
0b415077 | 5242 | * Line delta is +ve, all is well. |
be9618de | 5243 | */ |
0b415077 KR |
5244 | VMS_TBT_Line_PC_Correlation (dsc - Cur_Line_Number, |
5245 | val - Cur_Offset, | |
5246 | 0, | |
5247 | 1); | |
be9618de | 5248 | } |
0b415077 KR |
5249 | /* Update the current line/PC info. */ |
5250 | Cur_Line_Number = dsc; | |
5251 | Cur_Offset = val; | |
be9618de | 5252 | break; |
be9618de | 5253 | |
be9618de KR |
5254 | /* |
5255 | * Source file | |
5256 | */ | |
0b415077 KR |
5257 | case N_SO: |
5258 | /* Remember that we had a source file and emit | |
5259 | the source file debugger record. */ | |
5260 | Cur_File = find_file (symbolP); | |
5261 | break; | |
5262 | ||
5263 | case N_SOL: | |
5264 | /* We need to make sure that we are really in the actual | |
5265 | source file when we compute the maximum line number. | |
5266 | Otherwise the debugger gets really confused. */ | |
5267 | Cur_File = find_file (symbolP); | |
5268 | break; | |
5269 | ||
5270 | default: | |
5271 | break; | |
5272 | } /* switch */ | |
5273 | } /* if (IS_DEBUG) */ | |
5274 | } /* for */ | |
5275 | ||
be9618de | 5276 | /* |
0b415077 KR |
5277 | * If there is a routine start defined, terminate it |
5278 | * (and the line numbers). | |
be9618de KR |
5279 | */ |
5280 | if (Current_Routine) | |
5281 | { | |
0b415077 | 5282 | /* Terminate the line numbers. */ |
be9618de | 5283 | VMS_TBT_Line_PC_Correlation (0, |
0b415077 | 5284 | text_siz - S_GET_VALUE (Current_Routine), |
be9618de KR |
5285 | 0, |
5286 | -1); | |
0b415077 | 5287 | /* Terminate the routine. */ |
be9618de KR |
5288 | VMS_TBT_Routine_End (text_siz, Current_Routine); |
5289 | } | |
0b415077 | 5290 | |
53499500 | 5291 | /* Write the Traceback End Module TBT record. */ |
be9618de | 5292 | VMS_TBT_Module_End (); |
0b415077 | 5293 | } |
be9618de | 5294 | \f |
0b415077 | 5295 | |
53499500 KR |
5296 | /* Write a VAX/VMS object file (everything else has been done!). */ |
5297 | ||
0b415077 KR |
5298 | void |
5299 | vms_write_object_file (text_siz, data_siz, bss_siz, text_frag_root, | |
5300 | data_frag_root) | |
5301 | unsigned text_siz; | |
5302 | unsigned data_siz; | |
5303 | unsigned bss_siz; | |
5304 | fragS *text_frag_root; | |
5305 | fragS *data_frag_root; | |
5306 | { | |
5307 | register struct VMS_Symbol *vsp; | |
5308 | ||
5309 | /* | |
5310 | * Initialize program section indices; values get updated later. | |
5311 | */ | |
5312 | Psect_Number = 0; /* next Psect Index to use */ | |
5313 | Text_Psect = -1; /* Text Psect Index */ | |
5314 | Data_Psect = -2; /* Data Psect Index JF: Was -1 */ | |
5315 | Bss_Psect = -3; /* Bss Psect Index JF: Was -1 */ | |
5316 | /* Initialize other state variables. */ | |
5317 | Data_Segment = 0; | |
5318 | Local_Initd_Data_Size = 0; | |
5319 | ||
5320 | /* | |
5321 | * Create the actual output file and populate it with required | |
5322 | * "module header" information. | |
5323 | */ | |
5324 | Create_VMS_Object_File (); | |
5325 | Write_VMS_MHD_Records (); | |
5326 | ||
5327 | /* | |
5328 | * Create the Data segment: | |
5329 | * | |
5330 | * Since this is REALLY hard to do any other way, | |
5331 | * we actually manufacture the data segment and | |
5332 | * then store the appropriate values out of it. | |
5333 | * We need to generate this early, so that globalvalues | |
5334 | * can be properly emitted. | |
5335 | */ | |
5336 | if (data_siz > 0) | |
ac24997f | 5337 | synthesize_data_segment (data_siz, text_siz, data_frag_root); |
0b415077 KR |
5338 | |
5339 | ||
5340 | /******* Global Symbol Directory *******/ | |
5341 | ||
5342 | /* | |
5343 | * Emit globalvalues now. We must do this before the text psect is | |
5344 | * defined, or we will get linker warnings about multiply defined | |
5345 | * symbols. All of the globalvalues "reference" psect 0, although | |
5346 | * it really does not have anything to do with it. | |
5347 | */ | |
5348 | VMS_Emit_Globalvalues (text_siz, data_siz, Data_Segment); | |
5349 | /* | |
5350 | * Define the Text Psect | |
5351 | */ | |
5352 | Text_Psect = Psect_Number++; | |
5700b874 | 5353 | VMS_Psect_Spec ("$code", text_siz, ps_TEXT, 0); |
0b415077 KR |
5354 | /* |
5355 | * Define the BSS Psect | |
5356 | */ | |
5357 | if (bss_siz > 0) | |
5358 | { | |
5359 | Bss_Psect = Psect_Number++; | |
5700b874 | 5360 | VMS_Psect_Spec ("$uninitialized_data", bss_siz, ps_DATA, 0); |
0b415077 KR |
5361 | } |
5362 | /* | |
5363 | * Define symbols to the linker. | |
5364 | */ | |
5365 | global_symbol_directory (text_siz, data_siz); | |
5366 | /* | |
5367 | * Define the Data Psect | |
5368 | */ | |
5369 | if (data_siz > 0 && Local_Initd_Data_Size > 0) | |
5370 | { | |
5371 | Data_Psect = Psect_Number++; | |
5700b874 | 5372 | VMS_Psect_Spec ("$data", Local_Initd_Data_Size, ps_DATA, 0); |
0b415077 KR |
5373 | /* |
5374 | * Local initialized data (N_DATA) symbols need to be updated to the | |
5375 | * proper value of Data_Psect now that it's actually been defined. | |
5376 | * (A dummy value was used in global_symbol_directory() above.) | |
5377 | */ | |
5378 | for (vsp = VMS_Symbols; vsp; vsp = vsp->Next) | |
5379 | if (vsp->Psect_Index < 0 && S_GET_RAW_TYPE (vsp->Symbol) == N_DATA) | |
5380 | vsp->Psect_Index = Data_Psect; | |
5381 | } | |
5382 | ||
5383 | ||
5384 | /******* Text Information and Relocation Records *******/ | |
5385 | ||
5386 | /* | |
5387 | * Write the text segment data | |
5388 | */ | |
5389 | if (text_siz > 0) | |
5390 | vms_fixup_text_section (text_siz, text_frag_root, data_frag_root); | |
5391 | /* | |
5392 | * Write the data segment data, then discard it. | |
5393 | */ | |
5394 | if (data_siz > 0) | |
5395 | { | |
5396 | vms_fixup_data_section (data_siz, text_siz); | |
5397 | free (Data_Segment), Data_Segment = 0; | |
5398 | } | |
5399 | ||
5400 | ||
5401 | /******* Debugger Symbol Table Records *******/ | |
5402 | ||
5403 | vms_build_DST (text_siz); | |
5404 | ||
5405 | ||
53499500 KR |
5406 | /******* Wrap things up *******/ |
5407 | ||
be9618de KR |
5408 | /* |
5409 | * Write the End Of Module record | |
5410 | */ | |
53499500 KR |
5411 | if (Entry_Point_Symbol) |
5412 | Write_VMS_EOM_Record (Text_Psect, S_GET_VALUE (Entry_Point_Symbol)); | |
be9618de | 5413 | else |
53499500 | 5414 | Write_VMS_EOM_Record (-1, (valueT) 0); |
3c650d09 | 5415 | |
be9618de KR |
5416 | /* |
5417 | * All done, close the object file | |
5418 | */ | |
5419 | Close_VMS_Object_File (); | |
5420 | } | |
5421 | ||
5422 | /* end of obj-vms.c */ |