]>
Commit | Line | Data |
---|---|---|
1 | #!/bin/sh -u | |
2 | ||
3 | # Architecture commands for GDB, the GNU debugger. | |
4 | # | |
5 | # Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, | |
6 | # 2008 Free Software Foundation, Inc. | |
7 | # | |
8 | # This file is part of GDB. | |
9 | # | |
10 | # This program is free software; you can redistribute it and/or modify | |
11 | # it under the terms of the GNU General Public License as published by | |
12 | # the Free Software Foundation; either version 3 of the License, or | |
13 | # (at your option) any later version. | |
14 | # | |
15 | # This program is distributed in the hope that it will be useful, | |
16 | # but WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
18 | # GNU General Public License for more details. | |
19 | # | |
20 | # You should have received a copy of the GNU General Public License | |
21 | # along with this program. If not, see <http://www.gnu.org/licenses/>. | |
22 | ||
23 | # Make certain that the script is not running in an internationalized | |
24 | # environment. | |
25 | LANG=c ; export LANG | |
26 | LC_ALL=c ; export LC_ALL | |
27 | ||
28 | ||
29 | compare_new () | |
30 | { | |
31 | file=$1 | |
32 | if test ! -r ${file} | |
33 | then | |
34 | echo "${file} missing? cp new-${file} ${file}" 1>&2 | |
35 | elif diff -u ${file} new-${file} | |
36 | then | |
37 | echo "${file} unchanged" 1>&2 | |
38 | else | |
39 | echo "${file} has changed? cp new-${file} ${file}" 1>&2 | |
40 | fi | |
41 | } | |
42 | ||
43 | ||
44 | # Format of the input table | |
45 | read="class returntype function formal actual staticdefault predefault postdefault invalid_p print garbage_at_eol" | |
46 | ||
47 | do_read () | |
48 | { | |
49 | comment="" | |
50 | class="" | |
51 | while read line | |
52 | do | |
53 | if test "${line}" = "" | |
54 | then | |
55 | continue | |
56 | elif test "${line}" = "#" -a "${comment}" = "" | |
57 | then | |
58 | continue | |
59 | elif expr "${line}" : "#" > /dev/null | |
60 | then | |
61 | comment="${comment} | |
62 | ${line}" | |
63 | else | |
64 | ||
65 | # The semantics of IFS varies between different SH's. Some | |
66 | # treat ``::' as three fields while some treat it as just too. | |
67 | # Work around this by eliminating ``::'' .... | |
68 | line="`echo "${line}" | sed -e 's/::/: :/g' -e 's/::/: :/g'`" | |
69 | ||
70 | OFS="${IFS}" ; IFS="[:]" | |
71 | eval read ${read} <<EOF | |
72 | ${line} | |
73 | EOF | |
74 | IFS="${OFS}" | |
75 | ||
76 | if test -n "${garbage_at_eol}" | |
77 | then | |
78 | echo "Garbage at end-of-line in ${line}" 1>&2 | |
79 | kill $$ | |
80 | exit 1 | |
81 | fi | |
82 | ||
83 | # .... and then going back through each field and strip out those | |
84 | # that ended up with just that space character. | |
85 | for r in ${read} | |
86 | do | |
87 | if eval test \"\${${r}}\" = \"\ \" | |
88 | then | |
89 | eval ${r}="" | |
90 | fi | |
91 | done | |
92 | ||
93 | case "${class}" in | |
94 | m ) staticdefault="${predefault}" ;; | |
95 | M ) staticdefault="0" ;; | |
96 | * ) test "${staticdefault}" || staticdefault=0 ;; | |
97 | esac | |
98 | ||
99 | case "${class}" in | |
100 | F | V | M ) | |
101 | case "${invalid_p}" in | |
102 | "" ) | |
103 | if test -n "${predefault}" | |
104 | then | |
105 | #invalid_p="gdbarch->${function} == ${predefault}" | |
106 | predicate="gdbarch->${function} != ${predefault}" | |
107 | elif class_is_variable_p | |
108 | then | |
109 | predicate="gdbarch->${function} != 0" | |
110 | elif class_is_function_p | |
111 | then | |
112 | predicate="gdbarch->${function} != NULL" | |
113 | fi | |
114 | ;; | |
115 | * ) | |
116 | echo "Predicate function ${function} with invalid_p." 1>&2 | |
117 | kill $$ | |
118 | exit 1 | |
119 | ;; | |
120 | esac | |
121 | esac | |
122 | ||
123 | # PREDEFAULT is a valid fallback definition of MEMBER when | |
124 | # multi-arch is not enabled. This ensures that the | |
125 | # default value, when multi-arch is the same as the | |
126 | # default value when not multi-arch. POSTDEFAULT is | |
127 | # always a valid definition of MEMBER as this again | |
128 | # ensures consistency. | |
129 | ||
130 | if [ -n "${postdefault}" ] | |
131 | then | |
132 | fallbackdefault="${postdefault}" | |
133 | elif [ -n "${predefault}" ] | |
134 | then | |
135 | fallbackdefault="${predefault}" | |
136 | else | |
137 | fallbackdefault="0" | |
138 | fi | |
139 | ||
140 | #NOT YET: See gdbarch.log for basic verification of | |
141 | # database | |
142 | ||
143 | break | |
144 | fi | |
145 | done | |
146 | if [ -n "${class}" ] | |
147 | then | |
148 | true | |
149 | else | |
150 | false | |
151 | fi | |
152 | } | |
153 | ||
154 | ||
155 | fallback_default_p () | |
156 | { | |
157 | [ -n "${postdefault}" -a "x${invalid_p}" != "x0" ] \ | |
158 | || [ -n "${predefault}" -a "x${invalid_p}" = "x0" ] | |
159 | } | |
160 | ||
161 | class_is_variable_p () | |
162 | { | |
163 | case "${class}" in | |
164 | *v* | *V* ) true ;; | |
165 | * ) false ;; | |
166 | esac | |
167 | } | |
168 | ||
169 | class_is_function_p () | |
170 | { | |
171 | case "${class}" in | |
172 | *f* | *F* | *m* | *M* ) true ;; | |
173 | * ) false ;; | |
174 | esac | |
175 | } | |
176 | ||
177 | class_is_multiarch_p () | |
178 | { | |
179 | case "${class}" in | |
180 | *m* | *M* ) true ;; | |
181 | * ) false ;; | |
182 | esac | |
183 | } | |
184 | ||
185 | class_is_predicate_p () | |
186 | { | |
187 | case "${class}" in | |
188 | *F* | *V* | *M* ) true ;; | |
189 | * ) false ;; | |
190 | esac | |
191 | } | |
192 | ||
193 | class_is_info_p () | |
194 | { | |
195 | case "${class}" in | |
196 | *i* ) true ;; | |
197 | * ) false ;; | |
198 | esac | |
199 | } | |
200 | ||
201 | ||
202 | # dump out/verify the doco | |
203 | for field in ${read} | |
204 | do | |
205 | case ${field} in | |
206 | ||
207 | class ) : ;; | |
208 | ||
209 | # # -> line disable | |
210 | # f -> function | |
211 | # hiding a function | |
212 | # F -> function + predicate | |
213 | # hiding a function + predicate to test function validity | |
214 | # v -> variable | |
215 | # hiding a variable | |
216 | # V -> variable + predicate | |
217 | # hiding a variable + predicate to test variables validity | |
218 | # i -> set from info | |
219 | # hiding something from the ``struct info'' object | |
220 | # m -> multi-arch function | |
221 | # hiding a multi-arch function (parameterised with the architecture) | |
222 | # M -> multi-arch function + predicate | |
223 | # hiding a multi-arch function + predicate to test function validity | |
224 | ||
225 | returntype ) : ;; | |
226 | ||
227 | # For functions, the return type; for variables, the data type | |
228 | ||
229 | function ) : ;; | |
230 | ||
231 | # For functions, the member function name; for variables, the | |
232 | # variable name. Member function names are always prefixed with | |
233 | # ``gdbarch_'' for name-space purity. | |
234 | ||
235 | formal ) : ;; | |
236 | ||
237 | # The formal argument list. It is assumed that the formal | |
238 | # argument list includes the actual name of each list element. | |
239 | # A function with no arguments shall have ``void'' as the | |
240 | # formal argument list. | |
241 | ||
242 | actual ) : ;; | |
243 | ||
244 | # The list of actual arguments. The arguments specified shall | |
245 | # match the FORMAL list given above. Functions with out | |
246 | # arguments leave this blank. | |
247 | ||
248 | staticdefault ) : ;; | |
249 | ||
250 | # To help with the GDB startup a static gdbarch object is | |
251 | # created. STATICDEFAULT is the value to insert into that | |
252 | # static gdbarch object. Since this a static object only | |
253 | # simple expressions can be used. | |
254 | ||
255 | # If STATICDEFAULT is empty, zero is used. | |
256 | ||
257 | predefault ) : ;; | |
258 | ||
259 | # An initial value to assign to MEMBER of the freshly | |
260 | # malloc()ed gdbarch object. After initialization, the | |
261 | # freshly malloc()ed object is passed to the target | |
262 | # architecture code for further updates. | |
263 | ||
264 | # If PREDEFAULT is empty, zero is used. | |
265 | ||
266 | # A non-empty PREDEFAULT, an empty POSTDEFAULT and a zero | |
267 | # INVALID_P are specified, PREDEFAULT will be used as the | |
268 | # default for the non- multi-arch target. | |
269 | ||
270 | # A zero PREDEFAULT function will force the fallback to call | |
271 | # internal_error(). | |
272 | ||
273 | # Variable declarations can refer to ``gdbarch'' which will | |
274 | # contain the current architecture. Care should be taken. | |
275 | ||
276 | postdefault ) : ;; | |
277 | ||
278 | # A value to assign to MEMBER of the new gdbarch object should | |
279 | # the target architecture code fail to change the PREDEFAULT | |
280 | # value. | |
281 | ||
282 | # If POSTDEFAULT is empty, no post update is performed. | |
283 | ||
284 | # If both INVALID_P and POSTDEFAULT are non-empty then | |
285 | # INVALID_P will be used to determine if MEMBER should be | |
286 | # changed to POSTDEFAULT. | |
287 | ||
288 | # If a non-empty POSTDEFAULT and a zero INVALID_P are | |
289 | # specified, POSTDEFAULT will be used as the default for the | |
290 | # non- multi-arch target (regardless of the value of | |
291 | # PREDEFAULT). | |
292 | ||
293 | # You cannot specify both a zero INVALID_P and a POSTDEFAULT. | |
294 | ||
295 | # Variable declarations can refer to ``gdbarch'' which | |
296 | # will contain the current architecture. Care should be | |
297 | # taken. | |
298 | ||
299 | invalid_p ) : ;; | |
300 | ||
301 | # A predicate equation that validates MEMBER. Non-zero is | |
302 | # returned if the code creating the new architecture failed to | |
303 | # initialize MEMBER or the initialized the member is invalid. | |
304 | # If POSTDEFAULT is non-empty then MEMBER will be updated to | |
305 | # that value. If POSTDEFAULT is empty then internal_error() | |
306 | # is called. | |
307 | ||
308 | # If INVALID_P is empty, a check that MEMBER is no longer | |
309 | # equal to PREDEFAULT is used. | |
310 | ||
311 | # The expression ``0'' disables the INVALID_P check making | |
312 | # PREDEFAULT a legitimate value. | |
313 | ||
314 | # See also PREDEFAULT and POSTDEFAULT. | |
315 | ||
316 | print ) : ;; | |
317 | ||
318 | # An optional expression that convers MEMBER to a value | |
319 | # suitable for formatting using %s. | |
320 | ||
321 | # If PRINT is empty, paddr_nz (for CORE_ADDR) or paddr_d | |
322 | # (anything else) is used. | |
323 | ||
324 | garbage_at_eol ) : ;; | |
325 | ||
326 | # Catches stray fields. | |
327 | ||
328 | *) | |
329 | echo "Bad field ${field}" | |
330 | exit 1;; | |
331 | esac | |
332 | done | |
333 | ||
334 | ||
335 | function_list () | |
336 | { | |
337 | # See below (DOCO) for description of each field | |
338 | cat <<EOF | |
339 | i:const struct bfd_arch_info *:bfd_arch_info:::&bfd_default_arch_struct::::gdbarch_bfd_arch_info (gdbarch)->printable_name | |
340 | # | |
341 | i:int:byte_order:::BFD_ENDIAN_BIG | |
342 | # | |
343 | i:enum gdb_osabi:osabi:::GDB_OSABI_UNKNOWN | |
344 | # | |
345 | i:const struct target_desc *:target_desc:::::::paddr_d ((long) gdbarch->target_desc) | |
346 | ||
347 | # The bit byte-order has to do just with numbering of bits in debugging symbols | |
348 | # and such. Conceptually, it's quite separate from byte/word byte order. | |
349 | v:int:bits_big_endian:::1:(gdbarch->byte_order == BFD_ENDIAN_BIG)::0 | |
350 | ||
351 | # Number of bits in a char or unsigned char for the target machine. | |
352 | # Just like CHAR_BIT in <limits.h> but describes the target machine. | |
353 | # v:TARGET_CHAR_BIT:int:char_bit::::8 * sizeof (char):8::0: | |
354 | # | |
355 | # Number of bits in a short or unsigned short for the target machine. | |
356 | v:int:short_bit:::8 * sizeof (short):2*TARGET_CHAR_BIT::0 | |
357 | # Number of bits in an int or unsigned int for the target machine. | |
358 | v:int:int_bit:::8 * sizeof (int):4*TARGET_CHAR_BIT::0 | |
359 | # Number of bits in a long or unsigned long for the target machine. | |
360 | v:int:long_bit:::8 * sizeof (long):4*TARGET_CHAR_BIT::0 | |
361 | # Number of bits in a long long or unsigned long long for the target | |
362 | # machine. | |
363 | v:int:long_long_bit:::8 * sizeof (LONGEST):2*gdbarch->long_bit::0 | |
364 | ||
365 | # The ABI default bit-size and format for "float", "double", and "long | |
366 | # double". These bit/format pairs should eventually be combined into | |
367 | # a single object. For the moment, just initialize them as a pair. | |
368 | # Each format describes both the big and little endian layouts (if | |
369 | # useful). | |
370 | ||
371 | v:int:float_bit:::8 * sizeof (float):4*TARGET_CHAR_BIT::0 | |
372 | v:const struct floatformat **:float_format:::::floatformats_ieee_single::pformat (gdbarch->float_format) | |
373 | v:int:double_bit:::8 * sizeof (double):8*TARGET_CHAR_BIT::0 | |
374 | v:const struct floatformat **:double_format:::::floatformats_ieee_double::pformat (gdbarch->double_format) | |
375 | v:int:long_double_bit:::8 * sizeof (long double):8*TARGET_CHAR_BIT::0 | |
376 | v:const struct floatformat **:long_double_format:::::floatformats_ieee_double::pformat (gdbarch->long_double_format) | |
377 | ||
378 | # For most targets, a pointer on the target and its representation as an | |
379 | # address in GDB have the same size and "look the same". For such a | |
380 | # target, you need only set gdbarch_ptr_bit and gdbarch_addr_bit | |
381 | # / addr_bit will be set from it. | |
382 | # | |
383 | # If gdbarch_ptr_bit and gdbarch_addr_bit are different, you'll probably | |
384 | # also need to set gdbarch_pointer_to_address and gdbarch_address_to_pointer | |
385 | # as well. | |
386 | # | |
387 | # ptr_bit is the size of a pointer on the target | |
388 | v:int:ptr_bit:::8 * sizeof (void*):gdbarch->int_bit::0 | |
389 | # addr_bit is the size of a target address as represented in gdb | |
390 | v:int:addr_bit:::8 * sizeof (void*):0:gdbarch_ptr_bit (gdbarch): | |
391 | # | |
392 | # One if \`char' acts like \`signed char', zero if \`unsigned char'. | |
393 | v:int:char_signed:::1:-1:1 | |
394 | # | |
395 | F:CORE_ADDR:read_pc:struct regcache *regcache:regcache | |
396 | F:void:write_pc:struct regcache *regcache, CORE_ADDR val:regcache, val | |
397 | # Function for getting target's idea of a frame pointer. FIXME: GDB's | |
398 | # whole scheme for dealing with "frames" and "frame pointers" needs a | |
399 | # serious shakedown. | |
400 | m:void:virtual_frame_pointer:CORE_ADDR pc, int *frame_regnum, LONGEST *frame_offset:pc, frame_regnum, frame_offset:0:legacy_virtual_frame_pointer::0 | |
401 | # | |
402 | M:void:pseudo_register_read:struct regcache *regcache, int cookednum, gdb_byte *buf:regcache, cookednum, buf | |
403 | M:void:pseudo_register_write:struct regcache *regcache, int cookednum, const gdb_byte *buf:regcache, cookednum, buf | |
404 | # | |
405 | v:int:num_regs:::0:-1 | |
406 | # This macro gives the number of pseudo-registers that live in the | |
407 | # register namespace but do not get fetched or stored on the target. | |
408 | # These pseudo-registers may be aliases for other registers, | |
409 | # combinations of other registers, or they may be computed by GDB. | |
410 | v:int:num_pseudo_regs:::0:0::0 | |
411 | ||
412 | # GDB's standard (or well known) register numbers. These can map onto | |
413 | # a real register or a pseudo (computed) register or not be defined at | |
414 | # all (-1). | |
415 | # gdbarch_sp_regnum will hopefully be replaced by UNWIND_SP. | |
416 | v:int:sp_regnum:::-1:-1::0 | |
417 | v:int:pc_regnum:::-1:-1::0 | |
418 | v:int:ps_regnum:::-1:-1::0 | |
419 | v:int:fp0_regnum:::0:-1::0 | |
420 | # Convert stab register number (from \`r\' declaration) to a gdb REGNUM. | |
421 | m:int:stab_reg_to_regnum:int stab_regnr:stab_regnr::no_op_reg_to_regnum::0 | |
422 | # Provide a default mapping from a ecoff register number to a gdb REGNUM. | |
423 | m:int:ecoff_reg_to_regnum:int ecoff_regnr:ecoff_regnr::no_op_reg_to_regnum::0 | |
424 | # Provide a default mapping from a DWARF register number to a gdb REGNUM. | |
425 | m:int:dwarf_reg_to_regnum:int dwarf_regnr:dwarf_regnr::no_op_reg_to_regnum::0 | |
426 | # Convert from an sdb register number to an internal gdb register number. | |
427 | m:int:sdb_reg_to_regnum:int sdb_regnr:sdb_regnr::no_op_reg_to_regnum::0 | |
428 | m:int:dwarf2_reg_to_regnum:int dwarf2_regnr:dwarf2_regnr::no_op_reg_to_regnum::0 | |
429 | m:const char *:register_name:int regnr:regnr::0 | |
430 | ||
431 | # Return the type of a register specified by the architecture. Only | |
432 | # the register cache should call this function directly; others should | |
433 | # use "register_type". | |
434 | M:struct type *:register_type:int reg_nr:reg_nr | |
435 | ||
436 | # See gdbint.texinfo, and PUSH_DUMMY_CALL. | |
437 | M:struct frame_id:dummy_id:struct frame_info *this_frame:this_frame | |
438 | # Implement DUMMY_ID and PUSH_DUMMY_CALL, then delete | |
439 | # deprecated_fp_regnum. | |
440 | v:int:deprecated_fp_regnum:::-1:-1::0 | |
441 | ||
442 | # See gdbint.texinfo. See infcall.c. | |
443 | M:CORE_ADDR:push_dummy_call:struct value *function, struct regcache *regcache, CORE_ADDR bp_addr, int nargs, struct value **args, CORE_ADDR sp, int struct_return, CORE_ADDR struct_addr:function, regcache, bp_addr, nargs, args, sp, struct_return, struct_addr | |
444 | v:int:call_dummy_location::::AT_ENTRY_POINT::0 | |
445 | M:CORE_ADDR:push_dummy_code:CORE_ADDR sp, CORE_ADDR funaddr, struct value **args, int nargs, struct type *value_type, CORE_ADDR *real_pc, CORE_ADDR *bp_addr, struct regcache *regcache:sp, funaddr, args, nargs, value_type, real_pc, bp_addr, regcache | |
446 | ||
447 | m:void:print_registers_info:struct ui_file *file, struct frame_info *frame, int regnum, int all:file, frame, regnum, all::default_print_registers_info::0 | |
448 | M:void:print_float_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args | |
449 | M:void:print_vector_info:struct ui_file *file, struct frame_info *frame, const char *args:file, frame, args | |
450 | # MAP a GDB RAW register number onto a simulator register number. See | |
451 | # also include/...-sim.h. | |
452 | m:int:register_sim_regno:int reg_nr:reg_nr::legacy_register_sim_regno::0 | |
453 | m:int:cannot_fetch_register:int regnum:regnum::cannot_register_not::0 | |
454 | m:int:cannot_store_register:int regnum:regnum::cannot_register_not::0 | |
455 | # setjmp/longjmp support. | |
456 | F:int:get_longjmp_target:struct frame_info *frame, CORE_ADDR *pc:frame, pc | |
457 | # | |
458 | v:int:believe_pcc_promotion::::::: | |
459 | # | |
460 | m:int:convert_register_p:int regnum, struct type *type:regnum, type:0:generic_convert_register_p::0 | |
461 | f:void:register_to_value:struct frame_info *frame, int regnum, struct type *type, gdb_byte *buf:frame, regnum, type, buf:0 | |
462 | f:void:value_to_register:struct frame_info *frame, int regnum, struct type *type, const gdb_byte *buf:frame, regnum, type, buf:0 | |
463 | # Construct a value representing the contents of register REGNUM in | |
464 | # frame FRAME, interpreted as type TYPE. The routine needs to | |
465 | # allocate and return a struct value with all value attributes | |
466 | # (but not the value contents) filled in. | |
467 | f:struct value *:value_from_register:struct type *type, int regnum, struct frame_info *frame:type, regnum, frame::default_value_from_register::0 | |
468 | # | |
469 | f:CORE_ADDR:pointer_to_address:struct type *type, const gdb_byte *buf:type, buf::unsigned_pointer_to_address::0 | |
470 | f:void:address_to_pointer:struct type *type, gdb_byte *buf, CORE_ADDR addr:type, buf, addr::unsigned_address_to_pointer::0 | |
471 | M:CORE_ADDR:integer_to_address:struct type *type, const gdb_byte *buf:type, buf | |
472 | ||
473 | # Return the return-value convention that will be used by FUNCTYPE | |
474 | # to return a value of type VALTYPE. FUNCTYPE may be NULL in which | |
475 | # case the return convention is computed based only on VALTYPE. | |
476 | # | |
477 | # If READBUF is not NULL, extract the return value and save it in this buffer. | |
478 | # | |
479 | # If WRITEBUF is not NULL, it contains a return value which will be | |
480 | # stored into the appropriate register. This can be used when we want | |
481 | # to force the value returned by a function (see the "return" command | |
482 | # for instance). | |
483 | M:enum return_value_convention:return_value:struct type *functype, struct type *valtype, struct regcache *regcache, gdb_byte *readbuf, const gdb_byte *writebuf:functype, valtype, regcache, readbuf, writebuf | |
484 | ||
485 | m:CORE_ADDR:skip_prologue:CORE_ADDR ip:ip:0:0 | |
486 | f:int:inner_than:CORE_ADDR lhs, CORE_ADDR rhs:lhs, rhs:0:0 | |
487 | m:const gdb_byte *:breakpoint_from_pc:CORE_ADDR *pcptr, int *lenptr:pcptr, lenptr::0: | |
488 | M:CORE_ADDR:adjust_breakpoint_address:CORE_ADDR bpaddr:bpaddr | |
489 | m:int:memory_insert_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_insert_breakpoint::0 | |
490 | m:int:memory_remove_breakpoint:struct bp_target_info *bp_tgt:bp_tgt:0:default_memory_remove_breakpoint::0 | |
491 | v:CORE_ADDR:decr_pc_after_break:::0:::0 | |
492 | ||
493 | # A function can be addressed by either it's "pointer" (possibly a | |
494 | # descriptor address) or "entry point" (first executable instruction). | |
495 | # The method "convert_from_func_ptr_addr" converting the former to the | |
496 | # latter. gdbarch_deprecated_function_start_offset is being used to implement | |
497 | # a simplified subset of that functionality - the function's address | |
498 | # corresponds to the "function pointer" and the function's start | |
499 | # corresponds to the "function entry point" - and hence is redundant. | |
500 | ||
501 | v:CORE_ADDR:deprecated_function_start_offset:::0:::0 | |
502 | ||
503 | # Return the remote protocol register number associated with this | |
504 | # register. Normally the identity mapping. | |
505 | m:int:remote_register_number:int regno:regno::default_remote_register_number::0 | |
506 | ||
507 | # Fetch the target specific address used to represent a load module. | |
508 | F:CORE_ADDR:fetch_tls_load_module_address:struct objfile *objfile:objfile | |
509 | # | |
510 | v:CORE_ADDR:frame_args_skip:::0:::0 | |
511 | M:CORE_ADDR:unwind_pc:struct frame_info *next_frame:next_frame | |
512 | M:CORE_ADDR:unwind_sp:struct frame_info *next_frame:next_frame | |
513 | # DEPRECATED_FRAME_LOCALS_ADDRESS as been replaced by the per-frame | |
514 | # frame-base. Enable frame-base before frame-unwind. | |
515 | F:int:frame_num_args:struct frame_info *frame:frame | |
516 | # | |
517 | M:CORE_ADDR:frame_align:CORE_ADDR address:address | |
518 | m:int:stabs_argument_has_addr:struct type *type:type::default_stabs_argument_has_addr::0 | |
519 | v:int:frame_red_zone_size | |
520 | # | |
521 | m:CORE_ADDR:convert_from_func_ptr_addr:CORE_ADDR addr, struct target_ops *targ:addr, targ::convert_from_func_ptr_addr_identity::0 | |
522 | # On some machines there are bits in addresses which are not really | |
523 | # part of the address, but are used by the kernel, the hardware, etc. | |
524 | # for special purposes. gdbarch_addr_bits_remove takes out any such bits so | |
525 | # we get a "real" address such as one would find in a symbol table. | |
526 | # This is used only for addresses of instructions, and even then I'm | |
527 | # not sure it's used in all contexts. It exists to deal with there | |
528 | # being a few stray bits in the PC which would mislead us, not as some | |
529 | # sort of generic thing to handle alignment or segmentation (it's | |
530 | # possible it should be in TARGET_READ_PC instead). | |
531 | f:CORE_ADDR:addr_bits_remove:CORE_ADDR addr:addr::core_addr_identity::0 | |
532 | # It is not at all clear why gdbarch_smash_text_address is not folded into | |
533 | # gdbarch_addr_bits_remove. | |
534 | f:CORE_ADDR:smash_text_address:CORE_ADDR addr:addr::core_addr_identity::0 | |
535 | ||
536 | # FIXME/cagney/2001-01-18: This should be split in two. A target method that | |
537 | # indicates if the target needs software single step. An ISA method to | |
538 | # implement it. | |
539 | # | |
540 | # FIXME/cagney/2001-01-18: This should be replaced with something that inserts | |
541 | # breakpoints using the breakpoint system instead of blatting memory directly | |
542 | # (as with rs6000). | |
543 | # | |
544 | # FIXME/cagney/2001-01-18: The logic is backwards. It should be asking if the | |
545 | # target can single step. If not, then implement single step using breakpoints. | |
546 | # | |
547 | # A return value of 1 means that the software_single_step breakpoints | |
548 | # were inserted; 0 means they were not. | |
549 | F:int:software_single_step:struct frame_info *frame:frame | |
550 | ||
551 | # Return non-zero if the processor is executing a delay slot and a | |
552 | # further single-step is needed before the instruction finishes. | |
553 | M:int:single_step_through_delay:struct frame_info *frame:frame | |
554 | # FIXME: cagney/2003-08-28: Need to find a better way of selecting the | |
555 | # disassembler. Perhaps objdump can handle it? | |
556 | f:int:print_insn:bfd_vma vma, struct disassemble_info *info:vma, info::0: | |
557 | f:CORE_ADDR:skip_trampoline_code:struct frame_info *frame, CORE_ADDR pc:frame, pc::generic_skip_trampoline_code::0 | |
558 | ||
559 | ||
560 | # If IN_SOLIB_DYNSYM_RESOLVE_CODE returns true, and SKIP_SOLIB_RESOLVER | |
561 | # evaluates non-zero, this is the address where the debugger will place | |
562 | # a step-resume breakpoint to get us past the dynamic linker. | |
563 | m:CORE_ADDR:skip_solib_resolver:CORE_ADDR pc:pc::generic_skip_solib_resolver::0 | |
564 | # Some systems also have trampoline code for returning from shared libs. | |
565 | f:int:in_solib_return_trampoline:CORE_ADDR pc, char *name:pc, name::generic_in_solib_return_trampoline::0 | |
566 | ||
567 | # A target might have problems with watchpoints as soon as the stack | |
568 | # frame of the current function has been destroyed. This mostly happens | |
569 | # as the first action in a funtion's epilogue. in_function_epilogue_p() | |
570 | # is defined to return a non-zero value if either the given addr is one | |
571 | # instruction after the stack destroying instruction up to the trailing | |
572 | # return instruction or if we can figure out that the stack frame has | |
573 | # already been invalidated regardless of the value of addr. Targets | |
574 | # which don't suffer from that problem could just let this functionality | |
575 | # untouched. | |
576 | m:int:in_function_epilogue_p:CORE_ADDR addr:addr:0:generic_in_function_epilogue_p::0 | |
577 | # Given a vector of command-line arguments, return a newly allocated | |
578 | # string which, when passed to the create_inferior function, will be | |
579 | # parsed (on Unix systems, by the shell) to yield the same vector. | |
580 | # This function should call error() if the argument vector is not | |
581 | # representable for this target or if this target does not support | |
582 | # command-line arguments. | |
583 | # ARGC is the number of elements in the vector. | |
584 | # ARGV is an array of strings, one per argument. | |
585 | m:char *:construct_inferior_arguments:int argc, char **argv:argc, argv::construct_inferior_arguments::0 | |
586 | f:void:elf_make_msymbol_special:asymbol *sym, struct minimal_symbol *msym:sym, msym::default_elf_make_msymbol_special::0 | |
587 | f:void:coff_make_msymbol_special:int val, struct minimal_symbol *msym:val, msym::default_coff_make_msymbol_special::0 | |
588 | v:const char *:name_of_malloc:::"malloc":"malloc"::0:gdbarch->name_of_malloc | |
589 | v:int:cannot_step_breakpoint:::0:0::0 | |
590 | v:int:have_nonsteppable_watchpoint:::0:0::0 | |
591 | F:int:address_class_type_flags:int byte_size, int dwarf2_addr_class:byte_size, dwarf2_addr_class | |
592 | M:const char *:address_class_type_flags_to_name:int type_flags:type_flags | |
593 | M:int:address_class_name_to_type_flags:const char *name, int *type_flags_ptr:name, type_flags_ptr | |
594 | # Is a register in a group | |
595 | m:int:register_reggroup_p:int regnum, struct reggroup *reggroup:regnum, reggroup::default_register_reggroup_p::0 | |
596 | # Fetch the pointer to the ith function argument. | |
597 | F:CORE_ADDR:fetch_pointer_argument:struct frame_info *frame, int argi, struct type *type:frame, argi, type | |
598 | ||
599 | # Return the appropriate register set for a core file section with | |
600 | # name SECT_NAME and size SECT_SIZE. | |
601 | M:const struct regset *:regset_from_core_section:const char *sect_name, size_t sect_size:sect_name, sect_size | |
602 | ||
603 | # Read offset OFFSET of TARGET_OBJECT_LIBRARIES formatted shared libraries list from | |
604 | # core file into buffer READBUF with length LEN. | |
605 | M:LONGEST:core_xfer_shared_libraries:gdb_byte *readbuf, ULONGEST offset, LONGEST len:readbuf, offset, len | |
606 | ||
607 | # If the elements of C++ vtables are in-place function descriptors rather | |
608 | # than normal function pointers (which may point to code or a descriptor), | |
609 | # set this to one. | |
610 | v:int:vtable_function_descriptors:::0:0::0 | |
611 | ||
612 | # Set if the least significant bit of the delta is used instead of the least | |
613 | # significant bit of the pfn for pointers to virtual member functions. | |
614 | v:int:vbit_in_delta:::0:0::0 | |
615 | ||
616 | # Advance PC to next instruction in order to skip a permanent breakpoint. | |
617 | F:void:skip_permanent_breakpoint:struct regcache *regcache:regcache | |
618 | ||
619 | # The maximum length of an instruction on this architecture. | |
620 | V:ULONGEST:max_insn_length:::0:0 | |
621 | ||
622 | # Copy the instruction at FROM to TO, and make any adjustments | |
623 | # necessary to single-step it at that address. | |
624 | # | |
625 | # REGS holds the state the thread's registers will have before | |
626 | # executing the copied instruction; the PC in REGS will refer to FROM, | |
627 | # not the copy at TO. The caller should update it to point at TO later. | |
628 | # | |
629 | # Return a pointer to data of the architecture's choice to be passed | |
630 | # to gdbarch_displaced_step_fixup. Or, return NULL to indicate that | |
631 | # the instruction's effects have been completely simulated, with the | |
632 | # resulting state written back to REGS. | |
633 | # | |
634 | # For a general explanation of displaced stepping and how GDB uses it, | |
635 | # see the comments in infrun.c. | |
636 | # | |
637 | # The TO area is only guaranteed to have space for | |
638 | # gdbarch_max_insn_length (arch) bytes, so this function must not | |
639 | # write more bytes than that to that area. | |
640 | # | |
641 | # If you do not provide this function, GDB assumes that the | |
642 | # architecture does not support displaced stepping. | |
643 | # | |
644 | # If your architecture doesn't need to adjust instructions before | |
645 | # single-stepping them, consider using simple_displaced_step_copy_insn | |
646 | # here. | |
647 | M:struct displaced_step_closure *:displaced_step_copy_insn:CORE_ADDR from, CORE_ADDR to, struct regcache *regs:from, to, regs | |
648 | ||
649 | # Fix up the state resulting from successfully single-stepping a | |
650 | # displaced instruction, to give the result we would have gotten from | |
651 | # stepping the instruction in its original location. | |
652 | # | |
653 | # REGS is the register state resulting from single-stepping the | |
654 | # displaced instruction. | |
655 | # | |
656 | # CLOSURE is the result from the matching call to | |
657 | # gdbarch_displaced_step_copy_insn. | |
658 | # | |
659 | # If you provide gdbarch_displaced_step_copy_insn.but not this | |
660 | # function, then GDB assumes that no fixup is needed after | |
661 | # single-stepping the instruction. | |
662 | # | |
663 | # For a general explanation of displaced stepping and how GDB uses it, | |
664 | # see the comments in infrun.c. | |
665 | M:void:displaced_step_fixup:struct displaced_step_closure *closure, CORE_ADDR from, CORE_ADDR to, struct regcache *regs:closure, from, to, regs::NULL | |
666 | ||
667 | # Free a closure returned by gdbarch_displaced_step_copy_insn. | |
668 | # | |
669 | # If you provide gdbarch_displaced_step_copy_insn, you must provide | |
670 | # this function as well. | |
671 | # | |
672 | # If your architecture uses closures that don't need to be freed, then | |
673 | # you can use simple_displaced_step_free_closure here. | |
674 | # | |
675 | # For a general explanation of displaced stepping and how GDB uses it, | |
676 | # see the comments in infrun.c. | |
677 | m:void:displaced_step_free_closure:struct displaced_step_closure *closure:closure::NULL::(! gdbarch->displaced_step_free_closure) != (! gdbarch->displaced_step_copy_insn) | |
678 | ||
679 | # Return the address of an appropriate place to put displaced | |
680 | # instructions while we step over them. There need only be one such | |
681 | # place, since we're only stepping one thread over a breakpoint at a | |
682 | # time. | |
683 | # | |
684 | # For a general explanation of displaced stepping and how GDB uses it, | |
685 | # see the comments in infrun.c. | |
686 | m:CORE_ADDR:displaced_step_location:void:::NULL::(! gdbarch->displaced_step_location) != (! gdbarch->displaced_step_copy_insn) | |
687 | ||
688 | # Refresh overlay mapped state for section OSECT. | |
689 | F:void:overlay_update:struct obj_section *osect:osect | |
690 | ||
691 | M:const struct target_desc *:core_read_description:struct target_ops *target, bfd *abfd:target, abfd | |
692 | ||
693 | # Handle special encoding of static variables in stabs debug info. | |
694 | F:char *:static_transform_name:char *name:name | |
695 | # Set if the address in N_SO or N_FUN stabs may be zero. | |
696 | v:int:sofun_address_maybe_missing:::0:0::0 | |
697 | ||
698 | # Signal translation: translate inferior's signal (host's) number into | |
699 | # GDB's representation. | |
700 | m:enum target_signal:target_signal_from_host:int signo:signo::default_target_signal_from_host::0 | |
701 | # Signal translation: translate GDB's signal number into inferior's host | |
702 | # signal number. | |
703 | m:int:target_signal_to_host:enum target_signal ts:ts::default_target_signal_to_host::0 | |
704 | EOF | |
705 | } | |
706 | ||
707 | # | |
708 | # The .log file | |
709 | # | |
710 | exec > new-gdbarch.log | |
711 | function_list | while do_read | |
712 | do | |
713 | cat <<EOF | |
714 | ${class} ${returntype} ${function} ($formal) | |
715 | EOF | |
716 | for r in ${read} | |
717 | do | |
718 | eval echo \"\ \ \ \ ${r}=\${${r}}\" | |
719 | done | |
720 | if class_is_predicate_p && fallback_default_p | |
721 | then | |
722 | echo "Error: predicate function ${function} can not have a non- multi-arch default" 1>&2 | |
723 | kill $$ | |
724 | exit 1 | |
725 | fi | |
726 | if [ "x${invalid_p}" = "x0" -a -n "${postdefault}" ] | |
727 | then | |
728 | echo "Error: postdefault is useless when invalid_p=0" 1>&2 | |
729 | kill $$ | |
730 | exit 1 | |
731 | fi | |
732 | if class_is_multiarch_p | |
733 | then | |
734 | if class_is_predicate_p ; then : | |
735 | elif test "x${predefault}" = "x" | |
736 | then | |
737 | echo "Error: pure multi-arch function ${function} must have a predefault" 1>&2 | |
738 | kill $$ | |
739 | exit 1 | |
740 | fi | |
741 | fi | |
742 | echo "" | |
743 | done | |
744 | ||
745 | exec 1>&2 | |
746 | compare_new gdbarch.log | |
747 | ||
748 | ||
749 | copyright () | |
750 | { | |
751 | cat <<EOF | |
752 | /* *INDENT-OFF* */ /* THIS FILE IS GENERATED */ | |
753 | ||
754 | /* Dynamic architecture support for GDB, the GNU debugger. | |
755 | ||
756 | Copyright (C) 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007 | |
757 | Free Software Foundation, Inc. | |
758 | ||
759 | This file is part of GDB. | |
760 | ||
761 | This program is free software; you can redistribute it and/or modify | |
762 | it under the terms of the GNU General Public License as published by | |
763 | the Free Software Foundation; either version 3 of the License, or | |
764 | (at your option) any later version. | |
765 | ||
766 | This program is distributed in the hope that it will be useful, | |
767 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
768 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
769 | GNU General Public License for more details. | |
770 | ||
771 | You should have received a copy of the GNU General Public License | |
772 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
773 | ||
774 | /* This file was created with the aid of \`\`gdbarch.sh''. | |
775 | ||
776 | The Bourne shell script \`\`gdbarch.sh'' creates the files | |
777 | \`\`new-gdbarch.c'' and \`\`new-gdbarch.h and then compares them | |
778 | against the existing \`\`gdbarch.[hc]''. Any differences found | |
779 | being reported. | |
780 | ||
781 | If editing this file, please also run gdbarch.sh and merge any | |
782 | changes into that script. Conversely, when making sweeping changes | |
783 | to this file, modifying gdbarch.sh and using its output may prove | |
784 | easier. */ | |
785 | ||
786 | EOF | |
787 | } | |
788 | ||
789 | # | |
790 | # The .h file | |
791 | # | |
792 | ||
793 | exec > new-gdbarch.h | |
794 | copyright | |
795 | cat <<EOF | |
796 | #ifndef GDBARCH_H | |
797 | #define GDBARCH_H | |
798 | ||
799 | struct floatformat; | |
800 | struct ui_file; | |
801 | struct frame_info; | |
802 | struct value; | |
803 | struct objfile; | |
804 | struct obj_section; | |
805 | struct minimal_symbol; | |
806 | struct regcache; | |
807 | struct reggroup; | |
808 | struct regset; | |
809 | struct disassemble_info; | |
810 | struct target_ops; | |
811 | struct obstack; | |
812 | struct bp_target_info; | |
813 | struct target_desc; | |
814 | struct displaced_step_closure; | |
815 | ||
816 | extern struct gdbarch *current_gdbarch; | |
817 | EOF | |
818 | ||
819 | # function typedef's | |
820 | printf "\n" | |
821 | printf "\n" | |
822 | printf "/* The following are pre-initialized by GDBARCH. */\n" | |
823 | function_list | while do_read | |
824 | do | |
825 | if class_is_info_p | |
826 | then | |
827 | printf "\n" | |
828 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" | |
829 | printf "/* set_gdbarch_${function}() - not applicable - pre-initialized. */\n" | |
830 | fi | |
831 | done | |
832 | ||
833 | # function typedef's | |
834 | printf "\n" | |
835 | printf "\n" | |
836 | printf "/* The following are initialized by the target dependent code. */\n" | |
837 | function_list | while do_read | |
838 | do | |
839 | if [ -n "${comment}" ] | |
840 | then | |
841 | echo "${comment}" | sed \ | |
842 | -e '2 s,#,/*,' \ | |
843 | -e '3,$ s,#, ,' \ | |
844 | -e '$ s,$, */,' | |
845 | fi | |
846 | ||
847 | if class_is_predicate_p | |
848 | then | |
849 | printf "\n" | |
850 | printf "extern int gdbarch_${function}_p (struct gdbarch *gdbarch);\n" | |
851 | fi | |
852 | if class_is_variable_p | |
853 | then | |
854 | printf "\n" | |
855 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" | |
856 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, ${returntype} ${function});\n" | |
857 | fi | |
858 | if class_is_function_p | |
859 | then | |
860 | printf "\n" | |
861 | if [ "x${formal}" = "xvoid" ] && class_is_multiarch_p | |
862 | then | |
863 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch);\n" | |
864 | elif class_is_multiarch_p | |
865 | then | |
866 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (struct gdbarch *gdbarch, ${formal});\n" | |
867 | else | |
868 | printf "typedef ${returntype} (gdbarch_${function}_ftype) (${formal});\n" | |
869 | fi | |
870 | if [ "x${formal}" = "xvoid" ] | |
871 | then | |
872 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch);\n" | |
873 | else | |
874 | printf "extern ${returntype} gdbarch_${function} (struct gdbarch *gdbarch, ${formal});\n" | |
875 | fi | |
876 | printf "extern void set_gdbarch_${function} (struct gdbarch *gdbarch, gdbarch_${function}_ftype *${function});\n" | |
877 | fi | |
878 | done | |
879 | ||
880 | # close it off | |
881 | cat <<EOF | |
882 | ||
883 | extern struct gdbarch_tdep *gdbarch_tdep (struct gdbarch *gdbarch); | |
884 | ||
885 | ||
886 | /* Mechanism for co-ordinating the selection of a specific | |
887 | architecture. | |
888 | ||
889 | GDB targets (*-tdep.c) can register an interest in a specific | |
890 | architecture. Other GDB components can register a need to maintain | |
891 | per-architecture data. | |
892 | ||
893 | The mechanisms below ensures that there is only a loose connection | |
894 | between the set-architecture command and the various GDB | |
895 | components. Each component can independently register their need | |
896 | to maintain architecture specific data with gdbarch. | |
897 | ||
898 | Pragmatics: | |
899 | ||
900 | Previously, a single TARGET_ARCHITECTURE_HOOK was provided. It | |
901 | didn't scale. | |
902 | ||
903 | The more traditional mega-struct containing architecture specific | |
904 | data for all the various GDB components was also considered. Since | |
905 | GDB is built from a variable number of (fairly independent) | |
906 | components it was determined that the global aproach was not | |
907 | applicable. */ | |
908 | ||
909 | ||
910 | /* Register a new architectural family with GDB. | |
911 | ||
912 | Register support for the specified ARCHITECTURE with GDB. When | |
913 | gdbarch determines that the specified architecture has been | |
914 | selected, the corresponding INIT function is called. | |
915 | ||
916 | -- | |
917 | ||
918 | The INIT function takes two parameters: INFO which contains the | |
919 | information available to gdbarch about the (possibly new) | |
920 | architecture; ARCHES which is a list of the previously created | |
921 | \`\`struct gdbarch'' for this architecture. | |
922 | ||
923 | The INFO parameter is, as far as possible, be pre-initialized with | |
924 | information obtained from INFO.ABFD or the global defaults. | |
925 | ||
926 | The ARCHES parameter is a linked list (sorted most recently used) | |
927 | of all the previously created architures for this architecture | |
928 | family. The (possibly NULL) ARCHES->gdbarch can used to access | |
929 | values from the previously selected architecture for this | |
930 | architecture family. The global \`\`current_gdbarch'' shall not be | |
931 | used. | |
932 | ||
933 | The INIT function shall return any of: NULL - indicating that it | |
934 | doesn't recognize the selected architecture; an existing \`\`struct | |
935 | gdbarch'' from the ARCHES list - indicating that the new | |
936 | architecture is just a synonym for an earlier architecture (see | |
937 | gdbarch_list_lookup_by_info()); a newly created \`\`struct gdbarch'' | |
938 | - that describes the selected architecture (see gdbarch_alloc()). | |
939 | ||
940 | The DUMP_TDEP function shall print out all target specific values. | |
941 | Care should be taken to ensure that the function works in both the | |
942 | multi-arch and non- multi-arch cases. */ | |
943 | ||
944 | struct gdbarch_list | |
945 | { | |
946 | struct gdbarch *gdbarch; | |
947 | struct gdbarch_list *next; | |
948 | }; | |
949 | ||
950 | struct gdbarch_info | |
951 | { | |
952 | /* Use default: NULL (ZERO). */ | |
953 | const struct bfd_arch_info *bfd_arch_info; | |
954 | ||
955 | /* Use default: BFD_ENDIAN_UNKNOWN (NB: is not ZERO). */ | |
956 | int byte_order; | |
957 | ||
958 | /* Use default: NULL (ZERO). */ | |
959 | bfd *abfd; | |
960 | ||
961 | /* Use default: NULL (ZERO). */ | |
962 | struct gdbarch_tdep_info *tdep_info; | |
963 | ||
964 | /* Use default: GDB_OSABI_UNINITIALIZED (-1). */ | |
965 | enum gdb_osabi osabi; | |
966 | ||
967 | /* Use default: NULL (ZERO). */ | |
968 | const struct target_desc *target_desc; | |
969 | }; | |
970 | ||
971 | typedef struct gdbarch *(gdbarch_init_ftype) (struct gdbarch_info info, struct gdbarch_list *arches); | |
972 | typedef void (gdbarch_dump_tdep_ftype) (struct gdbarch *gdbarch, struct ui_file *file); | |
973 | ||
974 | /* DEPRECATED - use gdbarch_register() */ | |
975 | extern void register_gdbarch_init (enum bfd_architecture architecture, gdbarch_init_ftype *); | |
976 | ||
977 | extern void gdbarch_register (enum bfd_architecture architecture, | |
978 | gdbarch_init_ftype *, | |
979 | gdbarch_dump_tdep_ftype *); | |
980 | ||
981 | ||
982 | /* Return a freshly allocated, NULL terminated, array of the valid | |
983 | architecture names. Since architectures are registered during the | |
984 | _initialize phase this function only returns useful information | |
985 | once initialization has been completed. */ | |
986 | ||
987 | extern const char **gdbarch_printable_names (void); | |
988 | ||
989 | ||
990 | /* Helper function. Search the list of ARCHES for a GDBARCH that | |
991 | matches the information provided by INFO. */ | |
992 | ||
993 | extern struct gdbarch_list *gdbarch_list_lookup_by_info (struct gdbarch_list *arches, const struct gdbarch_info *info); | |
994 | ||
995 | ||
996 | /* Helper function. Create a preliminary \`\`struct gdbarch''. Perform | |
997 | basic initialization using values obtained from the INFO and TDEP | |
998 | parameters. set_gdbarch_*() functions are called to complete the | |
999 | initialization of the object. */ | |
1000 | ||
1001 | extern struct gdbarch *gdbarch_alloc (const struct gdbarch_info *info, struct gdbarch_tdep *tdep); | |
1002 | ||
1003 | ||
1004 | /* Helper function. Free a partially-constructed \`\`struct gdbarch''. | |
1005 | It is assumed that the caller freeds the \`\`struct | |
1006 | gdbarch_tdep''. */ | |
1007 | ||
1008 | extern void gdbarch_free (struct gdbarch *); | |
1009 | ||
1010 | ||
1011 | /* Helper function. Allocate memory from the \`\`struct gdbarch'' | |
1012 | obstack. The memory is freed when the corresponding architecture | |
1013 | is also freed. */ | |
1014 | ||
1015 | extern void *gdbarch_obstack_zalloc (struct gdbarch *gdbarch, long size); | |
1016 | #define GDBARCH_OBSTACK_CALLOC(GDBARCH, NR, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), (NR) * sizeof (TYPE))) | |
1017 | #define GDBARCH_OBSTACK_ZALLOC(GDBARCH, TYPE) ((TYPE *) gdbarch_obstack_zalloc ((GDBARCH), sizeof (TYPE))) | |
1018 | ||
1019 | ||
1020 | /* Helper function. Force an update of the current architecture. | |
1021 | ||
1022 | The actual architecture selected is determined by INFO, \`\`(gdb) set | |
1023 | architecture'' et.al., the existing architecture and BFD's default | |
1024 | architecture. INFO should be initialized to zero and then selected | |
1025 | fields should be updated. | |
1026 | ||
1027 | Returns non-zero if the update succeeds */ | |
1028 | ||
1029 | extern int gdbarch_update_p (struct gdbarch_info info); | |
1030 | ||
1031 | ||
1032 | /* Helper function. Find an architecture matching info. | |
1033 | ||
1034 | INFO should be initialized using gdbarch_info_init, relevant fields | |
1035 | set, and then finished using gdbarch_info_fill. | |
1036 | ||
1037 | Returns the corresponding architecture, or NULL if no matching | |
1038 | architecture was found. "current_gdbarch" is not updated. */ | |
1039 | ||
1040 | extern struct gdbarch *gdbarch_find_by_info (struct gdbarch_info info); | |
1041 | ||
1042 | ||
1043 | /* Helper function. Set the global "current_gdbarch" to "gdbarch". | |
1044 | ||
1045 | FIXME: kettenis/20031124: Of the functions that follow, only | |
1046 | gdbarch_from_bfd is supposed to survive. The others will | |
1047 | dissappear since in the future GDB will (hopefully) be truly | |
1048 | multi-arch. However, for now we're still stuck with the concept of | |
1049 | a single active architecture. */ | |
1050 | ||
1051 | extern void deprecated_current_gdbarch_select_hack (struct gdbarch *gdbarch); | |
1052 | ||
1053 | ||
1054 | /* Register per-architecture data-pointer. | |
1055 | ||
1056 | Reserve space for a per-architecture data-pointer. An identifier | |
1057 | for the reserved data-pointer is returned. That identifer should | |
1058 | be saved in a local static variable. | |
1059 | ||
1060 | Memory for the per-architecture data shall be allocated using | |
1061 | gdbarch_obstack_zalloc. That memory will be deleted when the | |
1062 | corresponding architecture object is deleted. | |
1063 | ||
1064 | When a previously created architecture is re-selected, the | |
1065 | per-architecture data-pointer for that previous architecture is | |
1066 | restored. INIT() is not re-called. | |
1067 | ||
1068 | Multiple registrarants for any architecture are allowed (and | |
1069 | strongly encouraged). */ | |
1070 | ||
1071 | struct gdbarch_data; | |
1072 | ||
1073 | typedef void *(gdbarch_data_pre_init_ftype) (struct obstack *obstack); | |
1074 | extern struct gdbarch_data *gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *init); | |
1075 | typedef void *(gdbarch_data_post_init_ftype) (struct gdbarch *gdbarch); | |
1076 | extern struct gdbarch_data *gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *init); | |
1077 | extern void deprecated_set_gdbarch_data (struct gdbarch *gdbarch, | |
1078 | struct gdbarch_data *data, | |
1079 | void *pointer); | |
1080 | ||
1081 | extern void *gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *); | |
1082 | ||
1083 | ||
1084 | /* Set the dynamic target-system-dependent parameters (architecture, | |
1085 | byte-order, ...) using information found in the BFD */ | |
1086 | ||
1087 | extern void set_gdbarch_from_file (bfd *); | |
1088 | ||
1089 | ||
1090 | /* Initialize the current architecture to the "first" one we find on | |
1091 | our list. */ | |
1092 | ||
1093 | extern void initialize_current_architecture (void); | |
1094 | ||
1095 | /* gdbarch trace variable */ | |
1096 | extern int gdbarch_debug; | |
1097 | ||
1098 | extern void gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file); | |
1099 | ||
1100 | #endif | |
1101 | EOF | |
1102 | exec 1>&2 | |
1103 | #../move-if-change new-gdbarch.h gdbarch.h | |
1104 | compare_new gdbarch.h | |
1105 | ||
1106 | ||
1107 | # | |
1108 | # C file | |
1109 | # | |
1110 | ||
1111 | exec > new-gdbarch.c | |
1112 | copyright | |
1113 | cat <<EOF | |
1114 | ||
1115 | #include "defs.h" | |
1116 | #include "arch-utils.h" | |
1117 | ||
1118 | #include "gdbcmd.h" | |
1119 | #include "inferior.h" | |
1120 | #include "symcat.h" | |
1121 | ||
1122 | #include "floatformat.h" | |
1123 | ||
1124 | #include "gdb_assert.h" | |
1125 | #include "gdb_string.h" | |
1126 | #include "gdb-events.h" | |
1127 | #include "reggroups.h" | |
1128 | #include "osabi.h" | |
1129 | #include "gdb_obstack.h" | |
1130 | ||
1131 | /* Static function declarations */ | |
1132 | ||
1133 | static void alloc_gdbarch_data (struct gdbarch *); | |
1134 | ||
1135 | /* Non-zero if we want to trace architecture code. */ | |
1136 | ||
1137 | #ifndef GDBARCH_DEBUG | |
1138 | #define GDBARCH_DEBUG 0 | |
1139 | #endif | |
1140 | int gdbarch_debug = GDBARCH_DEBUG; | |
1141 | static void | |
1142 | show_gdbarch_debug (struct ui_file *file, int from_tty, | |
1143 | struct cmd_list_element *c, const char *value) | |
1144 | { | |
1145 | fprintf_filtered (file, _("Architecture debugging is %s.\\n"), value); | |
1146 | } | |
1147 | ||
1148 | static const char * | |
1149 | pformat (const struct floatformat **format) | |
1150 | { | |
1151 | if (format == NULL) | |
1152 | return "(null)"; | |
1153 | else | |
1154 | /* Just print out one of them - this is only for diagnostics. */ | |
1155 | return format[0]->name; | |
1156 | } | |
1157 | ||
1158 | EOF | |
1159 | ||
1160 | # gdbarch open the gdbarch object | |
1161 | printf "\n" | |
1162 | printf "/* Maintain the struct gdbarch object */\n" | |
1163 | printf "\n" | |
1164 | printf "struct gdbarch\n" | |
1165 | printf "{\n" | |
1166 | printf " /* Has this architecture been fully initialized? */\n" | |
1167 | printf " int initialized_p;\n" | |
1168 | printf "\n" | |
1169 | printf " /* An obstack bound to the lifetime of the architecture. */\n" | |
1170 | printf " struct obstack *obstack;\n" | |
1171 | printf "\n" | |
1172 | printf " /* basic architectural information */\n" | |
1173 | function_list | while do_read | |
1174 | do | |
1175 | if class_is_info_p | |
1176 | then | |
1177 | printf " ${returntype} ${function};\n" | |
1178 | fi | |
1179 | done | |
1180 | printf "\n" | |
1181 | printf " /* target specific vector. */\n" | |
1182 | printf " struct gdbarch_tdep *tdep;\n" | |
1183 | printf " gdbarch_dump_tdep_ftype *dump_tdep;\n" | |
1184 | printf "\n" | |
1185 | printf " /* per-architecture data-pointers */\n" | |
1186 | printf " unsigned nr_data;\n" | |
1187 | printf " void **data;\n" | |
1188 | printf "\n" | |
1189 | printf " /* per-architecture swap-regions */\n" | |
1190 | printf " struct gdbarch_swap *swap;\n" | |
1191 | printf "\n" | |
1192 | cat <<EOF | |
1193 | /* Multi-arch values. | |
1194 | ||
1195 | When extending this structure you must: | |
1196 | ||
1197 | Add the field below. | |
1198 | ||
1199 | Declare set/get functions and define the corresponding | |
1200 | macro in gdbarch.h. | |
1201 | ||
1202 | gdbarch_alloc(): If zero/NULL is not a suitable default, | |
1203 | initialize the new field. | |
1204 | ||
1205 | verify_gdbarch(): Confirm that the target updated the field | |
1206 | correctly. | |
1207 | ||
1208 | gdbarch_dump(): Add a fprintf_unfiltered call so that the new | |
1209 | field is dumped out | |
1210 | ||
1211 | \`\`startup_gdbarch()'': Append an initial value to the static | |
1212 | variable (base values on the host's c-type system). | |
1213 | ||
1214 | get_gdbarch(): Implement the set/get functions (probably using | |
1215 | the macro's as shortcuts). | |
1216 | ||
1217 | */ | |
1218 | ||
1219 | EOF | |
1220 | function_list | while do_read | |
1221 | do | |
1222 | if class_is_variable_p | |
1223 | then | |
1224 | printf " ${returntype} ${function};\n" | |
1225 | elif class_is_function_p | |
1226 | then | |
1227 | printf " gdbarch_${function}_ftype *${function};\n" | |
1228 | fi | |
1229 | done | |
1230 | printf "};\n" | |
1231 | ||
1232 | # A pre-initialized vector | |
1233 | printf "\n" | |
1234 | printf "\n" | |
1235 | cat <<EOF | |
1236 | /* The default architecture uses host values (for want of a better | |
1237 | choice). */ | |
1238 | EOF | |
1239 | printf "\n" | |
1240 | printf "extern const struct bfd_arch_info bfd_default_arch_struct;\n" | |
1241 | printf "\n" | |
1242 | printf "struct gdbarch startup_gdbarch =\n" | |
1243 | printf "{\n" | |
1244 | printf " 1, /* Always initialized. */\n" | |
1245 | printf " NULL, /* The obstack. */\n" | |
1246 | printf " /* basic architecture information */\n" | |
1247 | function_list | while do_read | |
1248 | do | |
1249 | if class_is_info_p | |
1250 | then | |
1251 | printf " ${staticdefault}, /* ${function} */\n" | |
1252 | fi | |
1253 | done | |
1254 | cat <<EOF | |
1255 | /* target specific vector and its dump routine */ | |
1256 | NULL, NULL, | |
1257 | /*per-architecture data-pointers and swap regions */ | |
1258 | 0, NULL, NULL, | |
1259 | /* Multi-arch values */ | |
1260 | EOF | |
1261 | function_list | while do_read | |
1262 | do | |
1263 | if class_is_function_p || class_is_variable_p | |
1264 | then | |
1265 | printf " ${staticdefault}, /* ${function} */\n" | |
1266 | fi | |
1267 | done | |
1268 | cat <<EOF | |
1269 | /* startup_gdbarch() */ | |
1270 | }; | |
1271 | ||
1272 | struct gdbarch *current_gdbarch = &startup_gdbarch; | |
1273 | EOF | |
1274 | ||
1275 | # Create a new gdbarch struct | |
1276 | cat <<EOF | |
1277 | ||
1278 | /* Create a new \`\`struct gdbarch'' based on information provided by | |
1279 | \`\`struct gdbarch_info''. */ | |
1280 | EOF | |
1281 | printf "\n" | |
1282 | cat <<EOF | |
1283 | struct gdbarch * | |
1284 | gdbarch_alloc (const struct gdbarch_info *info, | |
1285 | struct gdbarch_tdep *tdep) | |
1286 | { | |
1287 | struct gdbarch *gdbarch; | |
1288 | ||
1289 | /* Create an obstack for allocating all the per-architecture memory, | |
1290 | then use that to allocate the architecture vector. */ | |
1291 | struct obstack *obstack = XMALLOC (struct obstack); | |
1292 | obstack_init (obstack); | |
1293 | gdbarch = obstack_alloc (obstack, sizeof (*gdbarch)); | |
1294 | memset (gdbarch, 0, sizeof (*gdbarch)); | |
1295 | gdbarch->obstack = obstack; | |
1296 | ||
1297 | alloc_gdbarch_data (gdbarch); | |
1298 | ||
1299 | gdbarch->tdep = tdep; | |
1300 | EOF | |
1301 | printf "\n" | |
1302 | function_list | while do_read | |
1303 | do | |
1304 | if class_is_info_p | |
1305 | then | |
1306 | printf " gdbarch->${function} = info->${function};\n" | |
1307 | fi | |
1308 | done | |
1309 | printf "\n" | |
1310 | printf " /* Force the explicit initialization of these. */\n" | |
1311 | function_list | while do_read | |
1312 | do | |
1313 | if class_is_function_p || class_is_variable_p | |
1314 | then | |
1315 | if [ -n "${predefault}" -a "x${predefault}" != "x0" ] | |
1316 | then | |
1317 | printf " gdbarch->${function} = ${predefault};\n" | |
1318 | fi | |
1319 | fi | |
1320 | done | |
1321 | cat <<EOF | |
1322 | /* gdbarch_alloc() */ | |
1323 | ||
1324 | return gdbarch; | |
1325 | } | |
1326 | EOF | |
1327 | ||
1328 | # Free a gdbarch struct. | |
1329 | printf "\n" | |
1330 | printf "\n" | |
1331 | cat <<EOF | |
1332 | /* Allocate extra space using the per-architecture obstack. */ | |
1333 | ||
1334 | void * | |
1335 | gdbarch_obstack_zalloc (struct gdbarch *arch, long size) | |
1336 | { | |
1337 | void *data = obstack_alloc (arch->obstack, size); | |
1338 | memset (data, 0, size); | |
1339 | return data; | |
1340 | } | |
1341 | ||
1342 | ||
1343 | /* Free a gdbarch struct. This should never happen in normal | |
1344 | operation --- once you've created a gdbarch, you keep it around. | |
1345 | However, if an architecture's init function encounters an error | |
1346 | building the structure, it may need to clean up a partially | |
1347 | constructed gdbarch. */ | |
1348 | ||
1349 | void | |
1350 | gdbarch_free (struct gdbarch *arch) | |
1351 | { | |
1352 | struct obstack *obstack; | |
1353 | gdb_assert (arch != NULL); | |
1354 | gdb_assert (!arch->initialized_p); | |
1355 | obstack = arch->obstack; | |
1356 | obstack_free (obstack, 0); /* Includes the ARCH. */ | |
1357 | xfree (obstack); | |
1358 | } | |
1359 | EOF | |
1360 | ||
1361 | # verify a new architecture | |
1362 | cat <<EOF | |
1363 | ||
1364 | ||
1365 | /* Ensure that all values in a GDBARCH are reasonable. */ | |
1366 | ||
1367 | static void | |
1368 | verify_gdbarch (struct gdbarch *gdbarch) | |
1369 | { | |
1370 | struct ui_file *log; | |
1371 | struct cleanup *cleanups; | |
1372 | long dummy; | |
1373 | char *buf; | |
1374 | log = mem_fileopen (); | |
1375 | cleanups = make_cleanup_ui_file_delete (log); | |
1376 | /* fundamental */ | |
1377 | if (gdbarch->byte_order == BFD_ENDIAN_UNKNOWN) | |
1378 | fprintf_unfiltered (log, "\n\tbyte-order"); | |
1379 | if (gdbarch->bfd_arch_info == NULL) | |
1380 | fprintf_unfiltered (log, "\n\tbfd_arch_info"); | |
1381 | /* Check those that need to be defined for the given multi-arch level. */ | |
1382 | EOF | |
1383 | function_list | while do_read | |
1384 | do | |
1385 | if class_is_function_p || class_is_variable_p | |
1386 | then | |
1387 | if [ "x${invalid_p}" = "x0" ] | |
1388 | then | |
1389 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" | |
1390 | elif class_is_predicate_p | |
1391 | then | |
1392 | printf " /* Skip verify of ${function}, has predicate */\n" | |
1393 | # FIXME: See do_read for potential simplification | |
1394 | elif [ -n "${invalid_p}" -a -n "${postdefault}" ] | |
1395 | then | |
1396 | printf " if (${invalid_p})\n" | |
1397 | printf " gdbarch->${function} = ${postdefault};\n" | |
1398 | elif [ -n "${predefault}" -a -n "${postdefault}" ] | |
1399 | then | |
1400 | printf " if (gdbarch->${function} == ${predefault})\n" | |
1401 | printf " gdbarch->${function} = ${postdefault};\n" | |
1402 | elif [ -n "${postdefault}" ] | |
1403 | then | |
1404 | printf " if (gdbarch->${function} == 0)\n" | |
1405 | printf " gdbarch->${function} = ${postdefault};\n" | |
1406 | elif [ -n "${invalid_p}" ] | |
1407 | then | |
1408 | printf " if (${invalid_p})\n" | |
1409 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" | |
1410 | elif [ -n "${predefault}" ] | |
1411 | then | |
1412 | printf " if (gdbarch->${function} == ${predefault})\n" | |
1413 | printf " fprintf_unfiltered (log, \"\\\\n\\\\t${function}\");\n" | |
1414 | fi | |
1415 | fi | |
1416 | done | |
1417 | cat <<EOF | |
1418 | buf = ui_file_xstrdup (log, &dummy); | |
1419 | make_cleanup (xfree, buf); | |
1420 | if (strlen (buf) > 0) | |
1421 | internal_error (__FILE__, __LINE__, | |
1422 | _("verify_gdbarch: the following are invalid ...%s"), | |
1423 | buf); | |
1424 | do_cleanups (cleanups); | |
1425 | } | |
1426 | EOF | |
1427 | ||
1428 | # dump the structure | |
1429 | printf "\n" | |
1430 | printf "\n" | |
1431 | cat <<EOF | |
1432 | /* Print out the details of the current architecture. */ | |
1433 | ||
1434 | void | |
1435 | gdbarch_dump (struct gdbarch *gdbarch, struct ui_file *file) | |
1436 | { | |
1437 | const char *gdb_nm_file = "<not-defined>"; | |
1438 | #if defined (GDB_NM_FILE) | |
1439 | gdb_nm_file = GDB_NM_FILE; | |
1440 | #endif | |
1441 | fprintf_unfiltered (file, | |
1442 | "gdbarch_dump: GDB_NM_FILE = %s\\n", | |
1443 | gdb_nm_file); | |
1444 | EOF | |
1445 | function_list | sort -t: -k 3 | while do_read | |
1446 | do | |
1447 | # First the predicate | |
1448 | if class_is_predicate_p | |
1449 | then | |
1450 | printf " fprintf_unfiltered (file,\n" | |
1451 | printf " \"gdbarch_dump: gdbarch_${function}_p() = %%d\\\\n\",\n" | |
1452 | printf " gdbarch_${function}_p (gdbarch));\n" | |
1453 | fi | |
1454 | # Print the corresponding value. | |
1455 | if class_is_function_p | |
1456 | then | |
1457 | printf " fprintf_unfiltered (file,\n" | |
1458 | printf " \"gdbarch_dump: ${function} = <0x%%lx>\\\\n\",\n" | |
1459 | printf " (long) gdbarch->${function});\n" | |
1460 | else | |
1461 | # It is a variable | |
1462 | case "${print}:${returntype}" in | |
1463 | :CORE_ADDR ) | |
1464 | fmt="0x%s" | |
1465 | print="paddr_nz (gdbarch->${function})" | |
1466 | ;; | |
1467 | :* ) | |
1468 | fmt="%s" | |
1469 | print="paddr_d (gdbarch->${function})" | |
1470 | ;; | |
1471 | * ) | |
1472 | fmt="%s" | |
1473 | ;; | |
1474 | esac | |
1475 | printf " fprintf_unfiltered (file,\n" | |
1476 | printf " \"gdbarch_dump: ${function} = %s\\\\n\",\n" "${fmt}" | |
1477 | printf " ${print});\n" | |
1478 | fi | |
1479 | done | |
1480 | cat <<EOF | |
1481 | if (gdbarch->dump_tdep != NULL) | |
1482 | gdbarch->dump_tdep (gdbarch, file); | |
1483 | } | |
1484 | EOF | |
1485 | ||
1486 | ||
1487 | # GET/SET | |
1488 | printf "\n" | |
1489 | cat <<EOF | |
1490 | struct gdbarch_tdep * | |
1491 | gdbarch_tdep (struct gdbarch *gdbarch) | |
1492 | { | |
1493 | if (gdbarch_debug >= 2) | |
1494 | fprintf_unfiltered (gdb_stdlog, "gdbarch_tdep called\\n"); | |
1495 | return gdbarch->tdep; | |
1496 | } | |
1497 | EOF | |
1498 | printf "\n" | |
1499 | function_list | while do_read | |
1500 | do | |
1501 | if class_is_predicate_p | |
1502 | then | |
1503 | printf "\n" | |
1504 | printf "int\n" | |
1505 | printf "gdbarch_${function}_p (struct gdbarch *gdbarch)\n" | |
1506 | printf "{\n" | |
1507 | printf " gdb_assert (gdbarch != NULL);\n" | |
1508 | printf " return ${predicate};\n" | |
1509 | printf "}\n" | |
1510 | fi | |
1511 | if class_is_function_p | |
1512 | then | |
1513 | printf "\n" | |
1514 | printf "${returntype}\n" | |
1515 | if [ "x${formal}" = "xvoid" ] | |
1516 | then | |
1517 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" | |
1518 | else | |
1519 | printf "gdbarch_${function} (struct gdbarch *gdbarch, ${formal})\n" | |
1520 | fi | |
1521 | printf "{\n" | |
1522 | printf " gdb_assert (gdbarch != NULL);\n" | |
1523 | printf " gdb_assert (gdbarch->${function} != NULL);\n" | |
1524 | if class_is_predicate_p && test -n "${predefault}" | |
1525 | then | |
1526 | # Allow a call to a function with a predicate. | |
1527 | printf " /* Do not check predicate: ${predicate}, allow call. */\n" | |
1528 | fi | |
1529 | printf " if (gdbarch_debug >= 2)\n" | |
1530 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" | |
1531 | if [ "x${actual}" = "x-" -o "x${actual}" = "x" ] | |
1532 | then | |
1533 | if class_is_multiarch_p | |
1534 | then | |
1535 | params="gdbarch" | |
1536 | else | |
1537 | params="" | |
1538 | fi | |
1539 | else | |
1540 | if class_is_multiarch_p | |
1541 | then | |
1542 | params="gdbarch, ${actual}" | |
1543 | else | |
1544 | params="${actual}" | |
1545 | fi | |
1546 | fi | |
1547 | if [ "x${returntype}" = "xvoid" ] | |
1548 | then | |
1549 | printf " gdbarch->${function} (${params});\n" | |
1550 | else | |
1551 | printf " return gdbarch->${function} (${params});\n" | |
1552 | fi | |
1553 | printf "}\n" | |
1554 | printf "\n" | |
1555 | printf "void\n" | |
1556 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" | |
1557 | printf " `echo ${function} | sed -e 's/./ /g'` gdbarch_${function}_ftype ${function})\n" | |
1558 | printf "{\n" | |
1559 | printf " gdbarch->${function} = ${function};\n" | |
1560 | printf "}\n" | |
1561 | elif class_is_variable_p | |
1562 | then | |
1563 | printf "\n" | |
1564 | printf "${returntype}\n" | |
1565 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" | |
1566 | printf "{\n" | |
1567 | printf " gdb_assert (gdbarch != NULL);\n" | |
1568 | if [ "x${invalid_p}" = "x0" ] | |
1569 | then | |
1570 | printf " /* Skip verify of ${function}, invalid_p == 0 */\n" | |
1571 | elif [ -n "${invalid_p}" ] | |
1572 | then | |
1573 | printf " /* Check variable is valid. */\n" | |
1574 | printf " gdb_assert (!(${invalid_p}));\n" | |
1575 | elif [ -n "${predefault}" ] | |
1576 | then | |
1577 | printf " /* Check variable changed from pre-default. */\n" | |
1578 | printf " gdb_assert (gdbarch->${function} != ${predefault});\n" | |
1579 | fi | |
1580 | printf " if (gdbarch_debug >= 2)\n" | |
1581 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" | |
1582 | printf " return gdbarch->${function};\n" | |
1583 | printf "}\n" | |
1584 | printf "\n" | |
1585 | printf "void\n" | |
1586 | printf "set_gdbarch_${function} (struct gdbarch *gdbarch,\n" | |
1587 | printf " `echo ${function} | sed -e 's/./ /g'` ${returntype} ${function})\n" | |
1588 | printf "{\n" | |
1589 | printf " gdbarch->${function} = ${function};\n" | |
1590 | printf "}\n" | |
1591 | elif class_is_info_p | |
1592 | then | |
1593 | printf "\n" | |
1594 | printf "${returntype}\n" | |
1595 | printf "gdbarch_${function} (struct gdbarch *gdbarch)\n" | |
1596 | printf "{\n" | |
1597 | printf " gdb_assert (gdbarch != NULL);\n" | |
1598 | printf " if (gdbarch_debug >= 2)\n" | |
1599 | printf " fprintf_unfiltered (gdb_stdlog, \"gdbarch_${function} called\\\\n\");\n" | |
1600 | printf " return gdbarch->${function};\n" | |
1601 | printf "}\n" | |
1602 | fi | |
1603 | done | |
1604 | ||
1605 | # All the trailing guff | |
1606 | cat <<EOF | |
1607 | ||
1608 | ||
1609 | /* Keep a registry of per-architecture data-pointers required by GDB | |
1610 | modules. */ | |
1611 | ||
1612 | struct gdbarch_data | |
1613 | { | |
1614 | unsigned index; | |
1615 | int init_p; | |
1616 | gdbarch_data_pre_init_ftype *pre_init; | |
1617 | gdbarch_data_post_init_ftype *post_init; | |
1618 | }; | |
1619 | ||
1620 | struct gdbarch_data_registration | |
1621 | { | |
1622 | struct gdbarch_data *data; | |
1623 | struct gdbarch_data_registration *next; | |
1624 | }; | |
1625 | ||
1626 | struct gdbarch_data_registry | |
1627 | { | |
1628 | unsigned nr; | |
1629 | struct gdbarch_data_registration *registrations; | |
1630 | }; | |
1631 | ||
1632 | struct gdbarch_data_registry gdbarch_data_registry = | |
1633 | { | |
1634 | 0, NULL, | |
1635 | }; | |
1636 | ||
1637 | static struct gdbarch_data * | |
1638 | gdbarch_data_register (gdbarch_data_pre_init_ftype *pre_init, | |
1639 | gdbarch_data_post_init_ftype *post_init) | |
1640 | { | |
1641 | struct gdbarch_data_registration **curr; | |
1642 | /* Append the new registraration. */ | |
1643 | for (curr = &gdbarch_data_registry.registrations; | |
1644 | (*curr) != NULL; | |
1645 | curr = &(*curr)->next); | |
1646 | (*curr) = XMALLOC (struct gdbarch_data_registration); | |
1647 | (*curr)->next = NULL; | |
1648 | (*curr)->data = XMALLOC (struct gdbarch_data); | |
1649 | (*curr)->data->index = gdbarch_data_registry.nr++; | |
1650 | (*curr)->data->pre_init = pre_init; | |
1651 | (*curr)->data->post_init = post_init; | |
1652 | (*curr)->data->init_p = 1; | |
1653 | return (*curr)->data; | |
1654 | } | |
1655 | ||
1656 | struct gdbarch_data * | |
1657 | gdbarch_data_register_pre_init (gdbarch_data_pre_init_ftype *pre_init) | |
1658 | { | |
1659 | return gdbarch_data_register (pre_init, NULL); | |
1660 | } | |
1661 | ||
1662 | struct gdbarch_data * | |
1663 | gdbarch_data_register_post_init (gdbarch_data_post_init_ftype *post_init) | |
1664 | { | |
1665 | return gdbarch_data_register (NULL, post_init); | |
1666 | } | |
1667 | ||
1668 | /* Create/delete the gdbarch data vector. */ | |
1669 | ||
1670 | static void | |
1671 | alloc_gdbarch_data (struct gdbarch *gdbarch) | |
1672 | { | |
1673 | gdb_assert (gdbarch->data == NULL); | |
1674 | gdbarch->nr_data = gdbarch_data_registry.nr; | |
1675 | gdbarch->data = GDBARCH_OBSTACK_CALLOC (gdbarch, gdbarch->nr_data, void *); | |
1676 | } | |
1677 | ||
1678 | /* Initialize the current value of the specified per-architecture | |
1679 | data-pointer. */ | |
1680 | ||
1681 | void | |
1682 | deprecated_set_gdbarch_data (struct gdbarch *gdbarch, | |
1683 | struct gdbarch_data *data, | |
1684 | void *pointer) | |
1685 | { | |
1686 | gdb_assert (data->index < gdbarch->nr_data); | |
1687 | gdb_assert (gdbarch->data[data->index] == NULL); | |
1688 | gdb_assert (data->pre_init == NULL); | |
1689 | gdbarch->data[data->index] = pointer; | |
1690 | } | |
1691 | ||
1692 | /* Return the current value of the specified per-architecture | |
1693 | data-pointer. */ | |
1694 | ||
1695 | void * | |
1696 | gdbarch_data (struct gdbarch *gdbarch, struct gdbarch_data *data) | |
1697 | { | |
1698 | gdb_assert (data->index < gdbarch->nr_data); | |
1699 | if (gdbarch->data[data->index] == NULL) | |
1700 | { | |
1701 | /* The data-pointer isn't initialized, call init() to get a | |
1702 | value. */ | |
1703 | if (data->pre_init != NULL) | |
1704 | /* Mid architecture creation: pass just the obstack, and not | |
1705 | the entire architecture, as that way it isn't possible for | |
1706 | pre-init code to refer to undefined architecture | |
1707 | fields. */ | |
1708 | gdbarch->data[data->index] = data->pre_init (gdbarch->obstack); | |
1709 | else if (gdbarch->initialized_p | |
1710 | && data->post_init != NULL) | |
1711 | /* Post architecture creation: pass the entire architecture | |
1712 | (as all fields are valid), but be careful to also detect | |
1713 | recursive references. */ | |
1714 | { | |
1715 | gdb_assert (data->init_p); | |
1716 | data->init_p = 0; | |
1717 | gdbarch->data[data->index] = data->post_init (gdbarch); | |
1718 | data->init_p = 1; | |
1719 | } | |
1720 | else | |
1721 | /* The architecture initialization hasn't completed - punt - | |
1722 | hope that the caller knows what they are doing. Once | |
1723 | deprecated_set_gdbarch_data has been initialized, this can be | |
1724 | changed to an internal error. */ | |
1725 | return NULL; | |
1726 | gdb_assert (gdbarch->data[data->index] != NULL); | |
1727 | } | |
1728 | return gdbarch->data[data->index]; | |
1729 | } | |
1730 | ||
1731 | ||
1732 | /* Keep a registry of the architectures known by GDB. */ | |
1733 | ||
1734 | struct gdbarch_registration | |
1735 | { | |
1736 | enum bfd_architecture bfd_architecture; | |
1737 | gdbarch_init_ftype *init; | |
1738 | gdbarch_dump_tdep_ftype *dump_tdep; | |
1739 | struct gdbarch_list *arches; | |
1740 | struct gdbarch_registration *next; | |
1741 | }; | |
1742 | ||
1743 | static struct gdbarch_registration *gdbarch_registry = NULL; | |
1744 | ||
1745 | static void | |
1746 | append_name (const char ***buf, int *nr, const char *name) | |
1747 | { | |
1748 | *buf = xrealloc (*buf, sizeof (char**) * (*nr + 1)); | |
1749 | (*buf)[*nr] = name; | |
1750 | *nr += 1; | |
1751 | } | |
1752 | ||
1753 | const char ** | |
1754 | gdbarch_printable_names (void) | |
1755 | { | |
1756 | /* Accumulate a list of names based on the registed list of | |
1757 | architectures. */ | |
1758 | enum bfd_architecture a; | |
1759 | int nr_arches = 0; | |
1760 | const char **arches = NULL; | |
1761 | struct gdbarch_registration *rego; | |
1762 | for (rego = gdbarch_registry; | |
1763 | rego != NULL; | |
1764 | rego = rego->next) | |
1765 | { | |
1766 | const struct bfd_arch_info *ap; | |
1767 | ap = bfd_lookup_arch (rego->bfd_architecture, 0); | |
1768 | if (ap == NULL) | |
1769 | internal_error (__FILE__, __LINE__, | |
1770 | _("gdbarch_architecture_names: multi-arch unknown")); | |
1771 | do | |
1772 | { | |
1773 | append_name (&arches, &nr_arches, ap->printable_name); | |
1774 | ap = ap->next; | |
1775 | } | |
1776 | while (ap != NULL); | |
1777 | } | |
1778 | append_name (&arches, &nr_arches, NULL); | |
1779 | return arches; | |
1780 | } | |
1781 | ||
1782 | ||
1783 | void | |
1784 | gdbarch_register (enum bfd_architecture bfd_architecture, | |
1785 | gdbarch_init_ftype *init, | |
1786 | gdbarch_dump_tdep_ftype *dump_tdep) | |
1787 | { | |
1788 | struct gdbarch_registration **curr; | |
1789 | const struct bfd_arch_info *bfd_arch_info; | |
1790 | /* Check that BFD recognizes this architecture */ | |
1791 | bfd_arch_info = bfd_lookup_arch (bfd_architecture, 0); | |
1792 | if (bfd_arch_info == NULL) | |
1793 | { | |
1794 | internal_error (__FILE__, __LINE__, | |
1795 | _("gdbarch: Attempt to register unknown architecture (%d)"), | |
1796 | bfd_architecture); | |
1797 | } | |
1798 | /* Check that we haven't seen this architecture before */ | |
1799 | for (curr = &gdbarch_registry; | |
1800 | (*curr) != NULL; | |
1801 | curr = &(*curr)->next) | |
1802 | { | |
1803 | if (bfd_architecture == (*curr)->bfd_architecture) | |
1804 | internal_error (__FILE__, __LINE__, | |
1805 | _("gdbarch: Duplicate registraration of architecture (%s)"), | |
1806 | bfd_arch_info->printable_name); | |
1807 | } | |
1808 | /* log it */ | |
1809 | if (gdbarch_debug) | |
1810 | fprintf_unfiltered (gdb_stdlog, "register_gdbarch_init (%s, 0x%08lx)\n", | |
1811 | bfd_arch_info->printable_name, | |
1812 | (long) init); | |
1813 | /* Append it */ | |
1814 | (*curr) = XMALLOC (struct gdbarch_registration); | |
1815 | (*curr)->bfd_architecture = bfd_architecture; | |
1816 | (*curr)->init = init; | |
1817 | (*curr)->dump_tdep = dump_tdep; | |
1818 | (*curr)->arches = NULL; | |
1819 | (*curr)->next = NULL; | |
1820 | } | |
1821 | ||
1822 | void | |
1823 | register_gdbarch_init (enum bfd_architecture bfd_architecture, | |
1824 | gdbarch_init_ftype *init) | |
1825 | { | |
1826 | gdbarch_register (bfd_architecture, init, NULL); | |
1827 | } | |
1828 | ||
1829 | ||
1830 | /* Look for an architecture using gdbarch_info. */ | |
1831 | ||
1832 | struct gdbarch_list * | |
1833 | gdbarch_list_lookup_by_info (struct gdbarch_list *arches, | |
1834 | const struct gdbarch_info *info) | |
1835 | { | |
1836 | for (; arches != NULL; arches = arches->next) | |
1837 | { | |
1838 | if (info->bfd_arch_info != arches->gdbarch->bfd_arch_info) | |
1839 | continue; | |
1840 | if (info->byte_order != arches->gdbarch->byte_order) | |
1841 | continue; | |
1842 | if (info->osabi != arches->gdbarch->osabi) | |
1843 | continue; | |
1844 | if (info->target_desc != arches->gdbarch->target_desc) | |
1845 | continue; | |
1846 | return arches; | |
1847 | } | |
1848 | return NULL; | |
1849 | } | |
1850 | ||
1851 | ||
1852 | /* Find an architecture that matches the specified INFO. Create a new | |
1853 | architecture if needed. Return that new architecture. Assumes | |
1854 | that there is no current architecture. */ | |
1855 | ||
1856 | static struct gdbarch * | |
1857 | find_arch_by_info (struct gdbarch_info info) | |
1858 | { | |
1859 | struct gdbarch *new_gdbarch; | |
1860 | struct gdbarch_registration *rego; | |
1861 | ||
1862 | /* The existing architecture has been swapped out - all this code | |
1863 | works from a clean slate. */ | |
1864 | gdb_assert (current_gdbarch == NULL); | |
1865 | ||
1866 | /* Fill in missing parts of the INFO struct using a number of | |
1867 | sources: "set ..."; INFOabfd supplied; and the global | |
1868 | defaults. */ | |
1869 | gdbarch_info_fill (&info); | |
1870 | ||
1871 | /* Must have found some sort of architecture. */ | |
1872 | gdb_assert (info.bfd_arch_info != NULL); | |
1873 | ||
1874 | if (gdbarch_debug) | |
1875 | { | |
1876 | fprintf_unfiltered (gdb_stdlog, | |
1877 | "find_arch_by_info: info.bfd_arch_info %s\n", | |
1878 | (info.bfd_arch_info != NULL | |
1879 | ? info.bfd_arch_info->printable_name | |
1880 | : "(null)")); | |
1881 | fprintf_unfiltered (gdb_stdlog, | |
1882 | "find_arch_by_info: info.byte_order %d (%s)\n", | |
1883 | info.byte_order, | |
1884 | (info.byte_order == BFD_ENDIAN_BIG ? "big" | |
1885 | : info.byte_order == BFD_ENDIAN_LITTLE ? "little" | |
1886 | : "default")); | |
1887 | fprintf_unfiltered (gdb_stdlog, | |
1888 | "find_arch_by_info: info.osabi %d (%s)\n", | |
1889 | info.osabi, gdbarch_osabi_name (info.osabi)); | |
1890 | fprintf_unfiltered (gdb_stdlog, | |
1891 | "find_arch_by_info: info.abfd 0x%lx\n", | |
1892 | (long) info.abfd); | |
1893 | fprintf_unfiltered (gdb_stdlog, | |
1894 | "find_arch_by_info: info.tdep_info 0x%lx\n", | |
1895 | (long) info.tdep_info); | |
1896 | } | |
1897 | ||
1898 | /* Find the tdep code that knows about this architecture. */ | |
1899 | for (rego = gdbarch_registry; | |
1900 | rego != NULL; | |
1901 | rego = rego->next) | |
1902 | if (rego->bfd_architecture == info.bfd_arch_info->arch) | |
1903 | break; | |
1904 | if (rego == NULL) | |
1905 | { | |
1906 | if (gdbarch_debug) | |
1907 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " | |
1908 | "No matching architecture\n"); | |
1909 | return 0; | |
1910 | } | |
1911 | ||
1912 | /* Ask the tdep code for an architecture that matches "info". */ | |
1913 | new_gdbarch = rego->init (info, rego->arches); | |
1914 | ||
1915 | /* Did the tdep code like it? No. Reject the change and revert to | |
1916 | the old architecture. */ | |
1917 | if (new_gdbarch == NULL) | |
1918 | { | |
1919 | if (gdbarch_debug) | |
1920 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " | |
1921 | "Target rejected architecture\n"); | |
1922 | return NULL; | |
1923 | } | |
1924 | ||
1925 | /* Is this a pre-existing architecture (as determined by already | |
1926 | being initialized)? Move it to the front of the architecture | |
1927 | list (keeping the list sorted Most Recently Used). */ | |
1928 | if (new_gdbarch->initialized_p) | |
1929 | { | |
1930 | struct gdbarch_list **list; | |
1931 | struct gdbarch_list *this; | |
1932 | if (gdbarch_debug) | |
1933 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " | |
1934 | "Previous architecture 0x%08lx (%s) selected\n", | |
1935 | (long) new_gdbarch, | |
1936 | new_gdbarch->bfd_arch_info->printable_name); | |
1937 | /* Find the existing arch in the list. */ | |
1938 | for (list = ®o->arches; | |
1939 | (*list) != NULL && (*list)->gdbarch != new_gdbarch; | |
1940 | list = &(*list)->next); | |
1941 | /* It had better be in the list of architectures. */ | |
1942 | gdb_assert ((*list) != NULL && (*list)->gdbarch == new_gdbarch); | |
1943 | /* Unlink THIS. */ | |
1944 | this = (*list); | |
1945 | (*list) = this->next; | |
1946 | /* Insert THIS at the front. */ | |
1947 | this->next = rego->arches; | |
1948 | rego->arches = this; | |
1949 | /* Return it. */ | |
1950 | return new_gdbarch; | |
1951 | } | |
1952 | ||
1953 | /* It's a new architecture. */ | |
1954 | if (gdbarch_debug) | |
1955 | fprintf_unfiltered (gdb_stdlog, "find_arch_by_info: " | |
1956 | "New architecture 0x%08lx (%s) selected\n", | |
1957 | (long) new_gdbarch, | |
1958 | new_gdbarch->bfd_arch_info->printable_name); | |
1959 | ||
1960 | /* Insert the new architecture into the front of the architecture | |
1961 | list (keep the list sorted Most Recently Used). */ | |
1962 | { | |
1963 | struct gdbarch_list *this = XMALLOC (struct gdbarch_list); | |
1964 | this->next = rego->arches; | |
1965 | this->gdbarch = new_gdbarch; | |
1966 | rego->arches = this; | |
1967 | } | |
1968 | ||
1969 | /* Check that the newly installed architecture is valid. Plug in | |
1970 | any post init values. */ | |
1971 | new_gdbarch->dump_tdep = rego->dump_tdep; | |
1972 | verify_gdbarch (new_gdbarch); | |
1973 | new_gdbarch->initialized_p = 1; | |
1974 | ||
1975 | if (gdbarch_debug) | |
1976 | gdbarch_dump (new_gdbarch, gdb_stdlog); | |
1977 | ||
1978 | return new_gdbarch; | |
1979 | } | |
1980 | ||
1981 | struct gdbarch * | |
1982 | gdbarch_find_by_info (struct gdbarch_info info) | |
1983 | { | |
1984 | struct gdbarch *new_gdbarch; | |
1985 | ||
1986 | /* Save the previously selected architecture, setting the global to | |
1987 | NULL. This stops things like gdbarch->init() trying to use the | |
1988 | previous architecture's configuration. The previous architecture | |
1989 | may not even be of the same architecture family. The most recent | |
1990 | architecture of the same family is found at the head of the | |
1991 | rego->arches list. */ | |
1992 | struct gdbarch *old_gdbarch = current_gdbarch; | |
1993 | current_gdbarch = NULL; | |
1994 | ||
1995 | /* Find the specified architecture. */ | |
1996 | new_gdbarch = find_arch_by_info (info); | |
1997 | ||
1998 | /* Restore the existing architecture. */ | |
1999 | gdb_assert (current_gdbarch == NULL); | |
2000 | current_gdbarch = old_gdbarch; | |
2001 | ||
2002 | return new_gdbarch; | |
2003 | } | |
2004 | ||
2005 | /* Make the specified architecture current. */ | |
2006 | ||
2007 | void | |
2008 | deprecated_current_gdbarch_select_hack (struct gdbarch *new_gdbarch) | |
2009 | { | |
2010 | gdb_assert (new_gdbarch != NULL); | |
2011 | gdb_assert (current_gdbarch != NULL); | |
2012 | gdb_assert (new_gdbarch->initialized_p); | |
2013 | current_gdbarch = new_gdbarch; | |
2014 | architecture_changed_event (); | |
2015 | reinit_frame_cache (); | |
2016 | } | |
2017 | ||
2018 | extern void _initialize_gdbarch (void); | |
2019 | ||
2020 | void | |
2021 | _initialize_gdbarch (void) | |
2022 | { | |
2023 | struct cmd_list_element *c; | |
2024 | ||
2025 | add_setshow_zinteger_cmd ("arch", class_maintenance, &gdbarch_debug, _("\\ | |
2026 | Set architecture debugging."), _("\\ | |
2027 | Show architecture debugging."), _("\\ | |
2028 | When non-zero, architecture debugging is enabled."), | |
2029 | NULL, | |
2030 | show_gdbarch_debug, | |
2031 | &setdebuglist, &showdebuglist); | |
2032 | } | |
2033 | EOF | |
2034 | ||
2035 | # close things off | |
2036 | exec 1>&2 | |
2037 | #../move-if-change new-gdbarch.c gdbarch.c | |
2038 | compare_new gdbarch.c |