1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002
3 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 59 Temple Place - Suite 330, Boston, MA
25 #include "safe-ctype.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
39 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
41 /* Tell the main code what the endianness is. */
42 extern int target_big_endian
;
44 /* Whether or not, we've set target_big_endian. */
45 static int set_target_endian
= 0;
47 /* Whether to use user friendly register names. */
48 #ifndef TARGET_REG_NAMES_P
50 #define TARGET_REG_NAMES_P true
52 #define TARGET_REG_NAMES_P false
56 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
59 /* #lo(value) denotes the least significant 16 bits of the indicated. */
60 #define PPC_LO(v) ((v) & 0xffff)
62 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
63 #define PPC_HI(v) (((v) >> 16) & 0xffff)
65 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
66 the indicated value, compensating for #lo() being treated as a
68 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
70 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
71 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
73 /* #highera(value) denotes bits 32 through 47 of the indicated value,
74 compensating for #lo() being treated as a signed number. */
75 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
77 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
78 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
80 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
81 compensating for #lo being treated as a signed number. */
82 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
84 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
86 static boolean reg_names_p
= TARGET_REG_NAMES_P
;
88 static boolean register_name
PARAMS ((expressionS
*));
89 static void ppc_set_cpu
PARAMS ((void));
90 static unsigned long ppc_insert_operand
91 PARAMS ((unsigned long insn
, const struct powerpc_operand
*operand
,
92 offsetT val
, char *file
, unsigned int line
));
93 static void ppc_macro
PARAMS ((char *str
, const struct powerpc_macro
*macro
));
94 static void ppc_byte
PARAMS ((int));
96 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
97 static int ppc_is_toc_sym
PARAMS ((symbolS
*sym
));
98 static void ppc_tc
PARAMS ((int));
99 static void ppc_machine
PARAMS ((int));
103 static void ppc_comm
PARAMS ((int));
104 static void ppc_bb
PARAMS ((int));
105 static void ppc_bc
PARAMS ((int));
106 static void ppc_bf
PARAMS ((int));
107 static void ppc_biei
PARAMS ((int));
108 static void ppc_bs
PARAMS ((int));
109 static void ppc_eb
PARAMS ((int));
110 static void ppc_ec
PARAMS ((int));
111 static void ppc_ef
PARAMS ((int));
112 static void ppc_es
PARAMS ((int));
113 static void ppc_csect
PARAMS ((int));
114 static void ppc_change_csect
PARAMS ((symbolS
*));
115 static void ppc_function
PARAMS ((int));
116 static void ppc_extern
PARAMS ((int));
117 static void ppc_lglobl
PARAMS ((int));
118 static void ppc_section
PARAMS ((int));
119 static void ppc_named_section
PARAMS ((int));
120 static void ppc_stabx
PARAMS ((int));
121 static void ppc_rename
PARAMS ((int));
122 static void ppc_toc
PARAMS ((int));
123 static void ppc_xcoff_cons
PARAMS ((int));
124 static void ppc_vbyte
PARAMS ((int));
128 static bfd_reloc_code_real_type ppc_elf_suffix
PARAMS ((char **, expressionS
*));
129 static void ppc_elf_cons
PARAMS ((int));
130 static void ppc_elf_rdata
PARAMS ((int));
131 static void ppc_elf_lcomm
PARAMS ((int));
132 static void ppc_elf_validate_fix
PARAMS ((fixS
*, segT
));
133 static void ppc_apuinfo_section_add
PARAMS ((unsigned int apu
, unsigned int version
));
137 static void ppc_set_current_section
PARAMS ((segT
));
138 static void ppc_previous
PARAMS ((int));
139 static void ppc_pdata
PARAMS ((int));
140 static void ppc_ydata
PARAMS ((int));
141 static void ppc_reldata
PARAMS ((int));
142 static void ppc_rdata
PARAMS ((int));
143 static void ppc_ualong
PARAMS ((int));
144 static void ppc_znop
PARAMS ((int));
145 static void ppc_pe_comm
PARAMS ((int));
146 static void ppc_pe_section
PARAMS ((int));
147 static void ppc_pe_function
PARAMS ((int));
148 static void ppc_pe_tocd
PARAMS ((int));
151 /* Generic assembler global variables which must be defined by all
155 /* This string holds the chars that always start a comment. If the
156 pre-processor is disabled, these aren't very useful. The macro
157 tc_comment_chars points to this. We use this, rather than the
158 usual comment_chars, so that we can switch for Solaris conventions. */
159 static const char ppc_solaris_comment_chars
[] = "#!";
160 static const char ppc_eabi_comment_chars
[] = "#";
162 #ifdef TARGET_SOLARIS_COMMENT
163 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
165 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
168 const char comment_chars
[] = "#";
171 /* Characters which start a comment at the beginning of a line. */
172 const char line_comment_chars
[] = "#";
174 /* Characters which may be used to separate multiple commands on a
176 const char line_separator_chars
[] = ";";
178 /* Characters which are used to indicate an exponent in a floating
180 const char EXP_CHARS
[] = "eE";
182 /* Characters which mean that a number is a floating point constant,
184 const char FLT_CHARS
[] = "dD";
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table
[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte
, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm
, 0 },
199 { "lcomm", ppc_comm
, 1 },
203 { "bi", ppc_biei
, 0 },
205 { "csect", ppc_csect
, 0 },
206 { "data", ppc_section
, 'd' },
210 { "ei", ppc_biei
, 1 },
212 { "extern", ppc_extern
, 0 },
213 { "function", ppc_function
, 0 },
214 { "lglobl", ppc_lglobl
, 0 },
215 { "rename", ppc_rename
, 0 },
216 { "section", ppc_named_section
, 0 },
217 { "stabx", ppc_stabx
, 0 },
218 { "text", ppc_section
, 't' },
219 { "toc", ppc_toc
, 0 },
220 { "long", ppc_xcoff_cons
, 2 },
221 { "llong", ppc_xcoff_cons
, 3 },
222 { "word", ppc_xcoff_cons
, 1 },
223 { "short", ppc_xcoff_cons
, 1 },
224 { "vbyte", ppc_vbyte
, 0 },
228 { "llong", ppc_elf_cons
, 8 },
229 { "quad", ppc_elf_cons
, 8 },
230 { "long", ppc_elf_cons
, 4 },
231 { "word", ppc_elf_cons
, 2 },
232 { "short", ppc_elf_cons
, 2 },
233 { "rdata", ppc_elf_rdata
, 0 },
234 { "rodata", ppc_elf_rdata
, 0 },
235 { "lcomm", ppc_elf_lcomm
, 0 },
236 { "file", (void (*) PARAMS ((int))) dwarf2_directive_file
, 0 },
237 { "loc", dwarf2_directive_loc
, 0 },
241 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
242 { "previous", ppc_previous
, 0 },
243 { "pdata", ppc_pdata
, 0 },
244 { "ydata", ppc_ydata
, 0 },
245 { "reldata", ppc_reldata
, 0 },
246 { "rdata", ppc_rdata
, 0 },
247 { "ualong", ppc_ualong
, 0 },
248 { "znop", ppc_znop
, 0 },
249 { "comm", ppc_pe_comm
, 0 },
250 { "lcomm", ppc_pe_comm
, 1 },
251 { "section", ppc_pe_section
, 0 },
252 { "function", ppc_pe_function
,0 },
253 { "tocd", ppc_pe_tocd
, 0 },
256 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
258 { "machine", ppc_machine
, 0 },
265 /* Predefined register names if -mregnames (or default for Windows NT).
266 In general, there are lots of them, in an attempt to be compatible
267 with a number of other Windows NT assemblers. */
269 /* Structure to hold information about predefined registers. */
276 /* List of registers that are pre-defined:
278 Each general register has predefined names of the form:
279 1. r<reg_num> which has the value <reg_num>.
280 2. r.<reg_num> which has the value <reg_num>.
282 Each floating point register has predefined names of the form:
283 1. f<reg_num> which has the value <reg_num>.
284 2. f.<reg_num> which has the value <reg_num>.
286 Each vector unit register has predefined names of the form:
287 1. v<reg_num> which has the value <reg_num>.
288 2. v.<reg_num> which has the value <reg_num>.
290 Each condition register has predefined names of the form:
291 1. cr<reg_num> which has the value <reg_num>.
292 2. cr.<reg_num> which has the value <reg_num>.
294 There are individual registers as well:
295 sp or r.sp has the value 1
296 rtoc or r.toc has the value 2
297 fpscr has the value 0
303 dsisr has the value 18
305 sdr1 has the value 25
306 srr0 has the value 26
307 srr1 has the value 27
309 The table is sorted. Suitable for searching by a binary search. */
311 static const struct pd_reg pre_defined_registers
[] =
313 { "cr.0", 0 }, /* Condition Registers */
333 { "dar", 19 }, /* Data Access Register */
334 { "dec", 22 }, /* Decrementer */
335 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
337 { "f.0", 0 }, /* Floating point registers */
405 { "lr", 8 }, /* Link Register */
409 { "r.0", 0 }, /* General Purpose Registers */
442 { "r.sp", 1 }, /* Stack Pointer */
444 { "r.toc", 2 }, /* Pointer to the table of contents */
446 { "r0", 0 }, /* More general purpose registers */
479 { "rtoc", 2 }, /* Table of contents */
481 { "sdr1", 25 }, /* Storage Description Register 1 */
485 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
486 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
488 { "v.0", 0 }, /* Vector registers */
558 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
560 /* Given NAME, find the register number associated with that name, return
561 the integer value associated with the given name or -1 on failure. */
563 static int reg_name_search
564 PARAMS ((const struct pd_reg
*, int, const char * name
));
567 reg_name_search (regs
, regcount
, name
)
568 const struct pd_reg
*regs
;
572 int middle
, low
, high
;
580 middle
= (low
+ high
) / 2;
581 cmp
= strcasecmp (name
, regs
[middle
].name
);
587 return regs
[middle
].value
;
595 * Summary of register_name.
597 * in: Input_line_pointer points to 1st char of operand.
599 * out: A expressionS.
600 * The operand may have been a register: in this case, X_op == O_register,
601 * X_add_number is set to the register number, and truth is returned.
602 * Input_line_pointer->(next non-blank) char after operand, or is in its
607 register_name (expressionP
)
608 expressionS
*expressionP
;
615 /* Find the spelling of the operand. */
616 start
= name
= input_line_pointer
;
617 if (name
[0] == '%' && ISALPHA (name
[1]))
618 name
= ++input_line_pointer
;
620 else if (!reg_names_p
|| !ISALPHA (name
[0]))
623 c
= get_symbol_end ();
624 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
626 /* Put back the delimiting char. */
627 *input_line_pointer
= c
;
629 /* Look to see if it's in the register table. */
632 expressionP
->X_op
= O_register
;
633 expressionP
->X_add_number
= reg_number
;
635 /* Make the rest nice. */
636 expressionP
->X_add_symbol
= NULL
;
637 expressionP
->X_op_symbol
= NULL
;
641 /* Reset the line as if we had not done anything. */
642 input_line_pointer
= start
;
646 /* This function is called for each symbol seen in an expression. It
647 handles the special parsing which PowerPC assemblers are supposed
648 to use for condition codes. */
650 /* Whether to do the special parsing. */
651 static boolean cr_operand
;
653 /* Names to recognize in a condition code. This table is sorted. */
654 static const struct pd_reg cr_names
[] =
671 /* Parsing function. This returns non-zero if it recognized an
675 ppc_parse_name (name
, expr
)
684 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
689 expr
->X_op
= O_constant
;
690 expr
->X_add_number
= val
;
695 /* Local variables. */
697 /* The type of processor we are assembling for. This is one or more
698 of the PPC_OPCODE flags defined in opcode/ppc.h. */
699 static unsigned long ppc_cpu
= 0;
701 /* Whether to target xcoff64/elf64. */
702 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
704 /* Opcode hash table. */
705 static struct hash_control
*ppc_hash
;
707 /* Macro hash table. */
708 static struct hash_control
*ppc_macro_hash
;
711 /* What type of shared library support to use. */
712 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
714 /* Flags to set in the elf header. */
715 static flagword ppc_flags
= 0;
717 /* Whether this is Solaris or not. */
718 #ifdef TARGET_SOLARIS_COMMENT
719 #define SOLARIS_P true
721 #define SOLARIS_P false
724 static boolean msolaris
= SOLARIS_P
;
729 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
730 using a bunch of different sections. These assembler sections,
731 however, are all encompassed within the .text or .data sections of
732 the final output file. We handle this by using different
733 subsegments within these main segments. */
735 /* Next subsegment to allocate within the .text segment. */
736 static subsegT ppc_text_subsegment
= 2;
738 /* Linked list of csects in the text section. */
739 static symbolS
*ppc_text_csects
;
741 /* Next subsegment to allocate within the .data segment. */
742 static subsegT ppc_data_subsegment
= 2;
744 /* Linked list of csects in the data section. */
745 static symbolS
*ppc_data_csects
;
747 /* The current csect. */
748 static symbolS
*ppc_current_csect
;
750 /* The RS/6000 assembler uses a TOC which holds addresses of functions
751 and variables. Symbols are put in the TOC with the .tc pseudo-op.
752 A special relocation is used when accessing TOC entries. We handle
753 the TOC as a subsegment within the .data segment. We set it up if
754 we see a .toc pseudo-op, and save the csect symbol here. */
755 static symbolS
*ppc_toc_csect
;
757 /* The first frag in the TOC subsegment. */
758 static fragS
*ppc_toc_frag
;
760 /* The first frag in the first subsegment after the TOC in the .data
761 segment. NULL if there are no subsegments after the TOC. */
762 static fragS
*ppc_after_toc_frag
;
764 /* The current static block. */
765 static symbolS
*ppc_current_block
;
767 /* The COFF debugging section; set by md_begin. This is not the
768 .debug section, but is instead the secret BFD section which will
769 cause BFD to set the section number of a symbol to N_DEBUG. */
770 static asection
*ppc_coff_debug_section
;
772 #endif /* OBJ_XCOFF */
776 /* Various sections that we need for PE coff support. */
777 static segT ydata_section
;
778 static segT pdata_section
;
779 static segT reldata_section
;
780 static segT rdata_section
;
781 static segT tocdata_section
;
783 /* The current section and the previous section. See ppc_previous. */
784 static segT ppc_previous_section
;
785 static segT ppc_current_section
;
790 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
791 #define PPC_APUINFO_ISEL 0x40
792 #define PPC_APUINFO_PMR 0x41
793 #define PPC_APUINFO_RFMCI 0x42
794 #define PPC_APUINFO_CACHELCK 0x43
795 #define PPC_APUINFO_SPE 0x100
796 #define PPC_APUINFO_EFS 0x101
797 #define PPC_APUINFO_BRLOCK 0x102
800 * We keep a list of APUinfo
802 unsigned long *ppc_apuinfo_list
;
803 unsigned int ppc_apuinfo_num
;
804 unsigned int ppc_apuinfo_num_alloc
;
808 const char *const md_shortopts
= "b:l:usm:K:VQ:";
810 const char *const md_shortopts
= "um:";
812 const struct option md_longopts
[] = {
813 {NULL
, no_argument
, NULL
, 0}
815 const size_t md_longopts_size
= sizeof (md_longopts
);
818 md_parse_option (c
, arg
)
825 /* -u means that any undefined symbols should be treated as
826 external, which is the default for gas anyhow. */
831 /* Solaris as takes -le (presumably for little endian). For completeness
832 sake, recognize -be also. */
833 if (strcmp (arg
, "e") == 0)
835 target_big_endian
= 0;
836 set_target_endian
= 1;
844 if (strcmp (arg
, "e") == 0)
846 target_big_endian
= 1;
847 set_target_endian
= 1;
855 /* Recognize -K PIC. */
856 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
859 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
867 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
869 if (strcmp (arg
, "64") == 0)
874 as_fatal (_("%s unsupported"), "-a64");
877 else if (strcmp (arg
, "32") == 0)
884 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
886 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
887 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
888 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
889 else if (strcmp (arg
, "pwr") == 0)
890 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
891 /* -m601 means to assemble for the PowerPC 601, which includes
892 instructions that are holdovers from the Power. */
893 else if (strcmp (arg
, "601") == 0)
894 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_601
| PPC_OPCODE_32
;
896 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
898 else if (strcmp (arg
, "ppc") == 0
899 || strcmp (arg
, "ppc32") == 0
900 || strcmp (arg
, "603") == 0
901 || strcmp (arg
, "604") == 0)
902 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
903 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
904 else if (strcmp (arg
, "403") == 0
905 || strcmp (arg
, "405") == 0)
906 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_403
| PPC_OPCODE_32
;
908 else if (strcmp (arg
, "7400") == 0
909 || strcmp (arg
, "7410") == 0
910 || strcmp (arg
, "7450") == 0
911 || strcmp (arg
, "7455") == 0)
912 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
913 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
;
914 else if (strcmp (arg
, "altivec") == 0)
917 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
919 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
921 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
923 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
924 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
925 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
| PPC_OPCODE_RFMCI
;
927 else if (strcmp (arg
, "spe") == 0)
930 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
932 ppc_cpu
|= PPC_OPCODE_SPE
;
934 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
936 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
938 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
940 else if (strcmp (arg
, "ppc64bridge") == 0)
942 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
943 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
;
945 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
946 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
948 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
950 /* -mbooke64 means enable 64-bit BookE support. */
951 else if (strcmp (arg
, "booke64") == 0)
953 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
|
954 PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
;
956 else if (strcmp (arg
, "power4") == 0)
958 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
959 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
;
961 /* -mcom means assemble for the common intersection between Power
962 and PowerPC. At present, we just allow the union, rather
963 than the intersection. */
964 else if (strcmp (arg
, "com") == 0)
965 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
966 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
967 else if (strcmp (arg
, "any") == 0)
968 ppc_cpu
= PPC_OPCODE_ANY
| PPC_OPCODE_32
;
970 else if (strcmp (arg
, "regnames") == 0)
973 else if (strcmp (arg
, "no-regnames") == 0)
977 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
978 that require relocation. */
979 else if (strcmp (arg
, "relocatable") == 0)
981 shlib
= SHLIB_MRELOCATABLE
;
982 ppc_flags
|= EF_PPC_RELOCATABLE
;
985 else if (strcmp (arg
, "relocatable-lib") == 0)
987 shlib
= SHLIB_MRELOCATABLE
;
988 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
991 /* -memb, set embedded bit. */
992 else if (strcmp (arg
, "emb") == 0)
993 ppc_flags
|= EF_PPC_EMB
;
995 /* -mlittle/-mbig set the endianess. */
996 else if (strcmp (arg
, "little") == 0
997 || strcmp (arg
, "little-endian") == 0)
999 target_big_endian
= 0;
1000 set_target_endian
= 1;
1003 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1005 target_big_endian
= 1;
1006 set_target_endian
= 1;
1009 else if (strcmp (arg
, "solaris") == 0)
1012 ppc_comment_chars
= ppc_solaris_comment_chars
;
1015 else if (strcmp (arg
, "no-solaris") == 0)
1018 ppc_comment_chars
= ppc_eabi_comment_chars
;
1023 as_bad (_("invalid switch -m%s"), arg
);
1029 /* -V: SVR4 argument to print version ID. */
1031 print_version_id ();
1034 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1035 should be emitted or not. FIXME: Not implemented. */
1039 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1040 rather than .stabs.excl, which is ignored by the linker.
1041 FIXME: Not implemented. */
1057 md_show_usage (stream
)
1060 fprintf (stream
, _("\
1063 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1064 -mpwr generate code for POWER (RIOS1)\n\
1065 -m601 generate code for PowerPC 601\n\
1066 -mppc, -mppc32, -m603, -m604\n\
1067 generate code for PowerPC 603/604\n\
1068 -m403, -m405 generate code for PowerPC 403/405\n\
1069 -m7400, -m7410, -m7450, -m7455\n\
1070 generate code For PowerPC 7400/7410/7450/7455\n\
1071 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1072 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1073 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1074 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1075 -mpower4 generate code for Power4 architecture\n\
1076 -maltivec generate code for AltiVec\n\
1077 -mcom generate code Power/PowerPC common instructions\n\
1078 -many generate code for any architecture (PWR/PWRX/PPC)\n\
1079 -mregnames Allow symbolic names for registers\n\
1080 -mno-regnames Do not allow symbolic names for registers\n"));
1081 fprintf (stream
, _("\
1082 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1083 -mspe generate code for Motorola SPE instructions\n"));
1085 fprintf (stream
, _("\
1086 -mrelocatable support for GCC's -mrelocatble option\n\
1087 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1088 -memb set PPC_EMB bit in ELF flags\n\
1089 -mlittle, -mlittle-endian\n\
1090 generate code for a little endian machine\n\
1091 -mbig, -mbig-endian generate code for a big endian machine\n\
1092 -msolaris generate code for Solaris\n\
1093 -mno-solaris do not generate code for Solaris\n\
1094 -V print assembler version number\n\
1095 -Qy, -Qn ignored\n"));
1099 /* Set ppc_cpu if it is not already set. */
1104 const char *default_os
= TARGET_OS
;
1105 const char *default_cpu
= TARGET_CPU
;
1110 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1111 else if (strncmp (default_os
, "aix", 3) == 0
1112 && default_os
[3] >= '4' && default_os
[3] <= '9')
1113 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1114 else if (strncmp (default_os
, "aix3", 4) == 0)
1115 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1116 else if (strcmp (default_cpu
, "rs6000") == 0)
1117 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1118 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1120 if (default_cpu
[7] == '6' && default_cpu
[8] == '4')
1121 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1123 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1126 as_fatal (_("Unknown default cpu = %s, os = %s"),
1127 default_cpu
, default_os
);
1131 /* Figure out the BFD architecture to use. */
1133 enum bfd_architecture
1136 const char *default_cpu
= TARGET_CPU
;
1139 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1140 return bfd_arch_powerpc
;
1141 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1142 return bfd_arch_rs6000
;
1143 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1145 if (strcmp (default_cpu
, "rs6000") == 0)
1146 return bfd_arch_rs6000
;
1147 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1148 return bfd_arch_powerpc
;
1151 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1152 return bfd_arch_unknown
;
1159 return bfd_mach_ppc64
;
1160 else if (ppc_arch () == bfd_arch_rs6000
)
1161 return bfd_mach_rs6k
;
1163 return bfd_mach_ppc
;
1167 ppc_target_format ()
1171 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1173 return "xcoff-powermac";
1176 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1178 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1183 return (target_big_endian
1184 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1185 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1189 /* This function is called when the assembler starts up. It is called
1190 after the options have been parsed and the output file has been
1196 register const struct powerpc_opcode
*op
;
1197 const struct powerpc_opcode
*op_end
;
1198 const struct powerpc_macro
*macro
;
1199 const struct powerpc_macro
*macro_end
;
1200 boolean dup_insn
= false;
1205 /* Set the ELF flags if desired. */
1206 if (ppc_flags
&& !msolaris
)
1207 bfd_set_private_flags (stdoutput
, ppc_flags
);
1210 /* Insert the opcodes into a hash table. */
1211 ppc_hash
= hash_new ();
1213 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1214 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1216 know ((op
->opcode
& op
->mask
) == op
->opcode
);
1218 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1219 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1220 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1221 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1222 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1223 /* Certain instructions (eg: extsw) do not exist in the
1224 32-bit BookE instruction set, but they do exist in the
1225 64-bit BookE instruction set, and other PPC instruction
1226 sets. Check to see if the opcode has the BOOKE64 flag set.
1227 If it does make sure that the target CPU is not the BookE32. */
1228 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1229 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1230 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1231 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1232 || ((op
->flags
& PPC_OPCODE_POWER4
)
1233 == (ppc_cpu
& PPC_OPCODE_POWER4
))))
1237 retval
= hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1238 if (retval
!= (const char *) NULL
)
1240 /* Ignore Power duplicates for -m601. */
1241 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1242 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1245 as_bad (_("Internal assembler error for instruction %s"),
1252 /* Insert the macros into a hash table. */
1253 ppc_macro_hash
= hash_new ();
1255 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1256 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1258 if ((macro
->flags
& ppc_cpu
) != 0)
1262 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (PTR
) macro
);
1263 if (retval
!= (const char *) NULL
)
1265 as_bad (_("Internal assembler error for macro %s"), macro
->name
);
1274 /* Tell the main code what the endianness is if it is not overidden
1276 if (!set_target_endian
)
1278 set_target_endian
= 1;
1279 target_big_endian
= PPC_BIG_ENDIAN
;
1283 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1285 /* Create dummy symbols to serve as initial csects. This forces the
1286 text csects to precede the data csects. These symbols will not
1288 ppc_text_csects
= symbol_make ("dummy\001");
1289 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1290 ppc_data_csects
= symbol_make ("dummy\001");
1291 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1296 ppc_current_section
= text_section
;
1297 ppc_previous_section
= 0;
1306 if (ppc_apuinfo_list
== NULL
)
1309 /* Ok, so write the section info out. We have this layout:
1313 0 8 length of "APUinfo\0"
1314 4 (n*4) number of APU's (4 bytes each)
1317 20 APU#1 first APU's info
1318 24 APU#2 second APU's info
1323 asection
*seg
= now_seg
;
1324 subsegT subseg
= now_subseg
;
1325 asection
*apuinfo_secp
= (asection
*) NULL
;
1328 /* Create the .PPC.EMB.apuinfo section. */
1329 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1330 bfd_set_section_flags (stdoutput
,
1332 SEC_HAS_CONTENTS
| SEC_READONLY
| SEC_MERGE
);
1335 md_number_to_chars (p
, (valueT
) 8, 4);
1338 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
, 4);
1341 md_number_to_chars (p
, (valueT
) 2, 4);
1344 strcpy (p
, "APUinfo");
1346 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1349 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1352 frag_align (2, 0, 0);
1354 /* We probably can't restore the current segment, for there likely
1357 subseg_set (seg
, subseg
);
1362 /* Insert an operand value into an instruction. */
1364 static unsigned long
1365 ppc_insert_operand (insn
, operand
, val
, file
, line
)
1367 const struct powerpc_operand
*operand
;
1372 if (operand
->bits
!= 32)
1377 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1379 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1380 max
= (1 << operand
->bits
) - 1;
1382 max
= (1 << (operand
->bits
- 1)) - 1;
1383 min
= - (1 << (operand
->bits
- 1));
1387 /* Some people write 32 bit hex constants with the sign
1388 extension done by hand. This shouldn't really be
1389 valid, but, to permit this code to assemble on a 64
1390 bit host, we sign extend the 32 bit value. */
1392 && (val
& (offsetT
) 0x80000000) != 0
1393 && (val
& (offsetT
) 0xffffffff) == val
)
1402 max
= (1 << operand
->bits
) - 1;
1406 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1411 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
1414 _("operand out of range (%s not between %ld and %ld)");
1417 sprint_value (buf
, test
);
1418 as_bad_where (file
, line
, err
, buf
, min
, max
);
1422 if (operand
->insert
)
1427 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1428 if (errmsg
!= (const char *) NULL
)
1429 as_bad_where (file
, line
, errmsg
);
1432 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1440 /* Parse @got, etc. and return the desired relocation. */
1441 static bfd_reloc_code_real_type
1442 ppc_elf_suffix (str_p
, exp_p
)
1457 const struct map_bfd
*ptr
;
1459 #define MAP(str,reloc) { str, sizeof (str)-1, reloc }
1461 static const struct map_bfd mapping
[] = {
1462 MAP ("l", (int) BFD_RELOC_LO16
),
1463 MAP ("h", (int) BFD_RELOC_HI16
),
1464 MAP ("ha", (int) BFD_RELOC_HI16_S
),
1465 MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN
),
1466 MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN
),
1467 MAP ("got", (int) BFD_RELOC_16_GOTOFF
),
1468 MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF
),
1469 MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF
),
1470 MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF
),
1471 MAP ("fixup", (int) BFD_RELOC_CTOR
), /* warning with -mrelocatable */
1472 MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL
),
1473 MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL
),
1474 MAP ("copy", (int) BFD_RELOC_PPC_COPY
),
1475 MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT
),
1476 MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC
),
1477 MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC
),
1478 MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL
),
1479 MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF
),
1480 MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF
),
1481 MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF
),
1482 MAP ("sdarel", (int) BFD_RELOC_GPREL16
),
1483 MAP ("sectoff", (int) BFD_RELOC_16_BASEREL
),
1484 MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL
),
1485 MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL
),
1486 MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL
),
1487 MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32
),
1488 MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16
),
1489 MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO
),
1490 MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI
),
1491 MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA
),
1492 MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16
),
1493 MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL
),
1494 MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16
),
1495 MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21
),
1496 MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF
),
1497 MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16
),
1498 MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO
),
1499 MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI
),
1500 MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA
),
1501 MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD
),
1502 MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA
),
1503 MAP ("xgot", (int) BFD_RELOC_PPC_TOC16
),
1504 /* The following are only valid for ppc64. Negative values are
1505 used instead of a flag. */
1506 MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER
),
1507 MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S
),
1508 MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST
),
1509 MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S
),
1510 MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC
),
1511 MAP ("toc", - (int) BFD_RELOC_PPC_TOC16
),
1512 MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO
),
1513 MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI
),
1514 MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA
),
1515 { (char *) 0, 0, (int) BFD_RELOC_UNUSED
}
1519 return BFD_RELOC_UNUSED
;
1521 for (ch
= *str
, str2
= ident
;
1522 (str2
< ident
+ sizeof (ident
) - 1
1523 && (ISALNUM (ch
) || ch
== '@'));
1526 *str2
++ = TOLOWER (ch
);
1533 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1534 if (ch
== ptr
->string
[0]
1535 && len
== ptr
->length
1536 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0)
1538 int reloc
= ptr
->reloc
;
1543 return BFD_RELOC_UNUSED
;
1547 if (exp_p
->X_add_number
!= 0
1548 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1549 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1550 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1551 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1552 as_warn (_("identifier+constant@got means identifier@got+constant"));
1554 /* Now check for identifier@suffix+constant. */
1555 if (*str
== '-' || *str
== '+')
1557 char *orig_line
= input_line_pointer
;
1558 expressionS new_exp
;
1560 input_line_pointer
= str
;
1561 expression (&new_exp
);
1562 if (new_exp
.X_op
== O_constant
)
1564 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1565 str
= input_line_pointer
;
1568 if (&input_line_pointer
!= str_p
)
1569 input_line_pointer
= orig_line
;
1573 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1574 && exp_p
->X_op
== O_symbol
)
1576 /* This reloc type ignores the symbol. Change the symbol
1577 so that the dummy .TOC. symbol can be omitted from the
1579 exp_p
->X_add_symbol
= &abs_symbol
;
1582 return (bfd_reloc_code_real_type
) reloc
;
1585 return BFD_RELOC_UNUSED
;
1588 /* Like normal .long/.short/.word, except support @got, etc.
1589 Clobbers input_line_pointer, checks end-of-line. */
1591 ppc_elf_cons (nbytes
)
1592 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1595 bfd_reloc_code_real_type reloc
;
1597 if (is_it_end_of_statement ())
1599 demand_empty_rest_of_line ();
1606 if (exp
.X_op
== O_symbol
1607 && *input_line_pointer
== '@'
1608 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1609 &exp
)) != BFD_RELOC_UNUSED
)
1611 reloc_howto_type
*reloc_howto
;
1614 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1615 size
= bfd_get_reloc_size (reloc_howto
);
1619 as_bad (_("%s relocations do not fit in %d bytes\n"),
1620 reloc_howto
->name
, nbytes
);
1627 p
= frag_more (nbytes
);
1629 if (target_big_endian
)
1630 offset
= nbytes
- size
;
1631 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1636 emit_expr (&exp
, (unsigned int) nbytes
);
1638 while (*input_line_pointer
++ == ',');
1640 /* Put terminator back into stream. */
1641 input_line_pointer
--;
1642 demand_empty_rest_of_line ();
1645 /* Solaris pseduo op to change to the .rodata section. */
1650 char *save_line
= input_line_pointer
;
1651 static char section
[] = ".rodata\n";
1653 /* Just pretend this is .section .rodata */
1654 input_line_pointer
= section
;
1655 obj_elf_section (xxx
);
1657 input_line_pointer
= save_line
;
1660 /* Pseudo op to make file scope bss items. */
1663 int xxx ATTRIBUTE_UNUSED
;
1665 register char *name
;
1669 register symbolS
*symbolP
;
1676 name
= input_line_pointer
;
1677 c
= get_symbol_end ();
1679 /* just after name is now '\0'. */
1680 p
= input_line_pointer
;
1683 if (*input_line_pointer
!= ',')
1685 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1686 ignore_rest_of_line ();
1690 input_line_pointer
++; /* skip ',' */
1691 if ((size
= get_absolute_expression ()) < 0)
1693 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1694 ignore_rest_of_line ();
1698 /* The third argument to .lcomm is the alignment. */
1699 if (*input_line_pointer
!= ',')
1703 ++input_line_pointer
;
1704 align
= get_absolute_expression ();
1707 as_warn (_("ignoring bad alignment"));
1713 symbolP
= symbol_find_or_make (name
);
1716 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1718 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1719 S_GET_NAME (symbolP
));
1720 ignore_rest_of_line ();
1724 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1726 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1727 S_GET_NAME (symbolP
),
1728 (long) S_GET_VALUE (symbolP
),
1731 ignore_rest_of_line ();
1737 old_subsec
= now_subseg
;
1740 /* Convert to a power of 2 alignment. */
1741 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1744 as_bad (_("Common alignment not a power of 2"));
1745 ignore_rest_of_line ();
1752 record_alignment (bss_section
, align2
);
1753 subseg_set (bss_section
, 0);
1755 frag_align (align2
, 0, 0);
1756 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1757 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1758 symbol_set_frag (symbolP
, frag_now
);
1759 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1762 S_SET_SIZE (symbolP
, size
);
1763 S_SET_SEGMENT (symbolP
, bss_section
);
1764 subseg_set (old_sec
, old_subsec
);
1765 demand_empty_rest_of_line ();
1768 /* Validate any relocations emitted for -mrelocatable, possibly adding
1769 fixups for word relocations in writable segments, so we can adjust
1772 ppc_elf_validate_fix (fixp
, seg
)
1776 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1785 case SHLIB_MRELOCATABLE
:
1786 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1787 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1788 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1789 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1790 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1791 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1792 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1793 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1794 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1795 && (seg
->flags
& SEC_LOAD
) != 0
1796 && strcmp (segment_name (seg
), ".got2") != 0
1797 && strcmp (segment_name (seg
), ".dtors") != 0
1798 && strcmp (segment_name (seg
), ".ctors") != 0
1799 && strcmp (segment_name (seg
), ".fixup") != 0
1800 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1801 && strcmp (segment_name (seg
), ".eh_frame") != 0
1802 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1804 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1805 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1807 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1808 _("Relocation cannot be done when using -mrelocatable"));
1815 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1816 function descriptor sym if the corresponding code sym is used. */
1819 ppc_frob_file_before_adjust ()
1826 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1833 name
= S_GET_NAME (symp
);
1837 if (! S_IS_WEAK (symp
)
1838 || S_IS_DEFINED (symp
))
1841 len
= strlen (name
) + 1;
1842 dotname
= xmalloc (len
+ 1);
1844 memcpy (dotname
+ 1, name
, len
);
1845 dotsym
= symbol_find (dotname
);
1847 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1848 || symbol_used_in_reloc_p (dotsym
)))
1850 symbol_mark_used (symp
);
1854 /* Don't emit .TOC. symbol. */
1855 symp
= symbol_find (".TOC.");
1857 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1859 #endif /* OBJ_ELF */
1864 * Summary of parse_toc_entry.
1866 * in: Input_line_pointer points to the '[' in one of:
1868 * [toc] [tocv] [toc32] [toc64]
1870 * Anything else is an error of one kind or another.
1873 * return value: success or failure
1874 * toc_kind: kind of toc reference
1875 * input_line_pointer:
1876 * success: first char after the ']'
1877 * failure: unchanged
1881 * [toc] - rv == success, toc_kind = default_toc
1882 * [tocv] - rv == success, toc_kind = data_in_toc
1883 * [toc32] - rv == success, toc_kind = must_be_32
1884 * [toc64] - rv == success, toc_kind = must_be_64
1888 enum toc_size_qualifier
1890 default_toc
, /* The toc cell constructed should be the system default size */
1891 data_in_toc
, /* This is a direct reference to a toc cell */
1892 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1893 must_be_64
/* The toc cell constructed must be 64 bits wide */
1897 parse_toc_entry (toc_kind
)
1898 enum toc_size_qualifier
*toc_kind
;
1903 enum toc_size_qualifier t
;
1905 /* Save the input_line_pointer. */
1906 start
= input_line_pointer
;
1908 /* Skip over the '[' , and whitespace. */
1909 ++input_line_pointer
;
1912 /* Find the spelling of the operand. */
1913 toc_spec
= input_line_pointer
;
1914 c
= get_symbol_end ();
1916 if (strcmp (toc_spec
, "toc") == 0)
1920 else if (strcmp (toc_spec
, "tocv") == 0)
1924 else if (strcmp (toc_spec
, "toc32") == 0)
1928 else if (strcmp (toc_spec
, "toc64") == 0)
1934 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
1935 *input_line_pointer
= c
;
1936 input_line_pointer
= start
;
1940 /* Now find the ']'. */
1941 *input_line_pointer
= c
;
1943 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1944 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
1948 as_bad (_("syntax error: expected `]', found `%c'"), c
);
1949 input_line_pointer
= start
;
1960 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
1962 ppc_apuinfo_section_add (apu
, version
)
1963 unsigned int apu
, version
;
1967 /* Check we don't already exist. */
1968 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1969 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
1972 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
1974 if (ppc_apuinfo_num_alloc
== 0)
1976 ppc_apuinfo_num_alloc
= 4;
1977 ppc_apuinfo_list
= (unsigned long *)
1978 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
1982 ppc_apuinfo_num_alloc
+= 4;
1983 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
1984 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
1987 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
1993 /* We need to keep a list of fixups. We can't simply generate them as
1994 we go, because that would require us to first create the frag, and
1995 that would screw up references to ``.''. */
2001 bfd_reloc_code_real_type reloc
;
2004 #define MAX_INSN_FIXUPS (5)
2006 /* This routine is called for each instruction to be assembled. */
2013 const struct powerpc_opcode
*opcode
;
2015 const unsigned char *opindex_ptr
;
2019 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2024 bfd_reloc_code_real_type reloc
;
2027 /* Get the opcode. */
2028 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2033 /* Look up the opcode in the hash table. */
2034 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2035 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2037 const struct powerpc_macro
*macro
;
2039 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2040 if (macro
== (const struct powerpc_macro
*) NULL
)
2041 as_bad (_("Unrecognized opcode: `%s'"), str
);
2043 ppc_macro (s
, macro
);
2048 insn
= opcode
->opcode
;
2051 while (ISSPACE (*str
))
2054 /* PowerPC operands are just expressions. The only real issue is
2055 that a few operand types are optional. All cases which might use
2056 an optional operand separate the operands only with commas (in
2057 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
2058 cases never have optional operands). There is never more than
2059 one optional operand for an instruction. So, before we start
2060 seriously parsing the operands, we check to see if we have an
2061 optional operand, and, if we do, we count the number of commas to
2062 see whether the operand should be omitted. */
2064 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2066 const struct powerpc_operand
*operand
;
2068 operand
= &powerpc_operands
[*opindex_ptr
];
2069 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2071 unsigned int opcount
;
2073 /* There is an optional operand. Count the number of
2074 commas in the input line. */
2081 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2088 /* If there are fewer operands in the line then are called
2089 for by the instruction, we want to skip the optional
2091 if (opcount
< strlen (opcode
->operands
))
2098 /* Gather the operands. */
2102 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2104 const struct powerpc_operand
*operand
;
2110 if (next_opindex
== 0)
2111 operand
= &powerpc_operands
[*opindex_ptr
];
2114 operand
= &powerpc_operands
[next_opindex
];
2119 /* If this is a fake operand, then we do not expect anything
2121 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2123 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2124 if (errmsg
!= (const char *) NULL
)
2129 /* If this is an optional operand, and we are skipping it, just
2131 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2134 if (operand
->insert
)
2136 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2137 if (errmsg
!= (const char *) NULL
)
2140 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2141 next_opindex
= *opindex_ptr
+ 1;
2145 /* Gather the operand. */
2146 hold
= input_line_pointer
;
2147 input_line_pointer
= str
;
2150 if (*input_line_pointer
== '[')
2152 /* We are expecting something like the second argument here:
2154 * lwz r4,[toc].GS.0.static_int(rtoc)
2155 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2156 * The argument following the `]' must be a symbol name, and the
2157 * register must be the toc register: 'rtoc' or '2'
2159 * The effect is to 0 as the displacement field
2160 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2161 * the appropriate variation) reloc against it based on the symbol.
2162 * The linker will build the toc, and insert the resolved toc offset.
2165 * o The size of the toc entry is currently assumed to be
2166 * 32 bits. This should not be assumed to be a hard coded
2168 * o In an effort to cope with a change from 32 to 64 bits,
2169 * there are also toc entries that are specified to be
2170 * either 32 or 64 bits:
2171 * lwz r4,[toc32].GS.0.static_int(rtoc)
2172 * lwz r4,[toc64].GS.0.static_int(rtoc)
2173 * These demand toc entries of the specified size, and the
2174 * instruction probably requires it.
2178 enum toc_size_qualifier toc_kind
;
2179 bfd_reloc_code_real_type toc_reloc
;
2181 /* Go parse off the [tocXX] part. */
2182 valid_toc
= parse_toc_entry (&toc_kind
);
2186 /* Note: message has already been issued.
2187 FIXME: what sort of recovery should we do?
2188 demand_rest_of_line (); return; ? */
2191 /* Now get the symbol following the ']'. */
2197 /* In this case, we may not have seen the symbol yet,
2198 since it is allowed to appear on a .extern or .globl
2199 or just be a label in the .data section. */
2200 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2203 /* 1. The symbol must be defined and either in the toc
2204 section, or a global.
2205 2. The reloc generated must have the TOCDEFN flag set
2206 in upper bit mess of the reloc type.
2207 FIXME: It's a little confusing what the tocv
2208 qualifier can be used for. At the very least, I've
2209 seen three uses, only one of which I'm sure I can
2211 if (ex
.X_op
== O_symbol
)
2213 assert (ex
.X_add_symbol
!= NULL
);
2214 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2217 as_bad (_("[tocv] symbol is not a toc symbol"));
2221 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2224 /* FIXME: these next two specifically specify 32/64 bit
2225 toc entries. We don't support them today. Is this
2226 the right way to say that? */
2227 toc_reloc
= BFD_RELOC_UNUSED
;
2228 as_bad (_("Unimplemented toc32 expression modifier"));
2231 /* FIXME: see above. */
2232 toc_reloc
= BFD_RELOC_UNUSED
;
2233 as_bad (_("Unimplemented toc64 expression modifier"));
2237 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2243 /* We need to generate a fixup for this expression. */
2244 if (fc
>= MAX_INSN_FIXUPS
)
2245 as_fatal (_("too many fixups"));
2247 fixups
[fc
].reloc
= toc_reloc
;
2248 fixups
[fc
].exp
= ex
;
2249 fixups
[fc
].opindex
= *opindex_ptr
;
2252 /* Ok. We've set up the fixup for the instruction. Now make it
2253 look like the constant 0 was found here. */
2255 ex
.X_op
= O_constant
;
2256 ex
.X_add_number
= 0;
2257 ex
.X_add_symbol
= NULL
;
2258 ex
.X_op_symbol
= NULL
;
2264 if (! register_name (&ex
))
2266 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2273 str
= input_line_pointer
;
2274 input_line_pointer
= hold
;
2276 if (ex
.X_op
== O_illegal
)
2277 as_bad (_("illegal operand"));
2278 else if (ex
.X_op
== O_absent
)
2279 as_bad (_("missing operand"));
2280 else if (ex
.X_op
== O_register
)
2282 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2285 else if (ex
.X_op
== O_constant
)
2288 /* Allow @HA, @L, @H on constants. */
2289 char *orig_str
= str
;
2291 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2298 case BFD_RELOC_LO16
:
2299 /* X_unsigned is the default, so if the user has done
2300 something which cleared it, we always produce a
2302 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2303 ex
.X_add_number
&= 0xffff;
2305 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2308 case BFD_RELOC_HI16
:
2309 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2310 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2312 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2315 case BFD_RELOC_HI16_S
:
2316 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2317 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2319 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2322 case BFD_RELOC_PPC64_HIGHER
:
2323 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2324 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2326 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2329 case BFD_RELOC_PPC64_HIGHER_S
:
2330 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2331 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2333 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2336 case BFD_RELOC_PPC64_HIGHEST
:
2337 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2338 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2340 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2343 case BFD_RELOC_PPC64_HIGHEST_S
:
2344 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2345 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2347 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2350 #endif /* OBJ_ELF */
2351 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2355 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2357 /* For the absolute forms of branches, convert the PC
2358 relative form back into the absolute. */
2359 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2363 case BFD_RELOC_PPC_B26
:
2364 reloc
= BFD_RELOC_PPC_BA26
;
2366 case BFD_RELOC_PPC_B16
:
2367 reloc
= BFD_RELOC_PPC_BA16
;
2369 case BFD_RELOC_PPC_B16_BRTAKEN
:
2370 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2372 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2373 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2381 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
2386 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2388 case BFD_RELOC_LO16
:
2389 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2391 case BFD_RELOC_16_GOTOFF
:
2392 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2394 case BFD_RELOC_LO16_GOTOFF
:
2395 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2397 case BFD_RELOC_LO16_PLTOFF
:
2398 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2400 case BFD_RELOC_16_BASEREL
:
2401 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2403 case BFD_RELOC_LO16_BASEREL
:
2404 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2406 case BFD_RELOC_PPC_TOC16
:
2407 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2409 case BFD_RELOC_PPC64_TOC16_LO
:
2410 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2412 case BFD_RELOC_PPC64_PLTGOT16
:
2413 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2415 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2416 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2419 as_bad (_("unsupported relocation for DS offset field"));
2424 /* We need to generate a fixup for this expression. */
2425 if (fc
>= MAX_INSN_FIXUPS
)
2426 as_fatal (_("too many fixups"));
2427 fixups
[fc
].exp
= ex
;
2428 fixups
[fc
].opindex
= 0;
2429 fixups
[fc
].reloc
= reloc
;
2432 #endif /* OBJ_ELF */
2436 /* We need to generate a fixup for this expression. */
2437 if (fc
>= MAX_INSN_FIXUPS
)
2438 as_fatal (_("too many fixups"));
2439 fixups
[fc
].exp
= ex
;
2440 fixups
[fc
].opindex
= *opindex_ptr
;
2441 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2450 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2458 /* The call to expression should have advanced str past any
2461 && (endc
!= ',' || *str
!= '\0'))
2463 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2471 while (ISSPACE (*str
))
2475 as_bad (_("junk at end of line: `%s'"), str
);
2478 /* Do we need/want a APUinfo section? */
2479 if (ppc_cpu
& (PPC_OPCODE_SPE
2480 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2481 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2482 | PPC_OPCODE_RFMCI
))
2484 /* These are all version "1". */
2485 if (opcode
->flags
& PPC_OPCODE_SPE
)
2486 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2487 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2488 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2489 if (opcode
->flags
& PPC_OPCODE_EFS
)
2490 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2491 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2492 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2493 if (opcode
->flags
& PPC_OPCODE_PMR
)
2494 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2495 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2496 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2497 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2498 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2502 /* Write out the instruction. */
2504 md_number_to_chars (f
, insn
, 4);
2507 dwarf2_emit_insn (4);
2510 /* Create any fixups. At this point we do not use a
2511 bfd_reloc_code_real_type, but instead just use the
2512 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2513 handle fixups for any operand type, although that is admittedly
2514 not a very exciting feature. We pick a BFD reloc type in
2516 for (i
= 0; i
< fc
; i
++)
2518 const struct powerpc_operand
*operand
;
2520 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2521 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2523 reloc_howto_type
*reloc_howto
;
2528 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2532 size
= bfd_get_reloc_size (reloc_howto
);
2533 offset
= target_big_endian
? (4 - size
) : 0;
2535 if (size
< 1 || size
> 4)
2538 fixP
= fix_new_exp (frag_now
,
2539 f
- frag_now
->fr_literal
+ offset
,
2542 reloc_howto
->pc_relative
,
2545 /* Turn off complaints that the addend is too large for things like
2547 switch (fixups
[i
].reloc
)
2549 case BFD_RELOC_16_GOTOFF
:
2550 case BFD_RELOC_PPC_TOC16
:
2551 case BFD_RELOC_LO16
:
2552 case BFD_RELOC_HI16
:
2553 case BFD_RELOC_HI16_S
:
2555 case BFD_RELOC_PPC64_HIGHER
:
2556 case BFD_RELOC_PPC64_HIGHER_S
:
2557 case BFD_RELOC_PPC64_HIGHEST
:
2558 case BFD_RELOC_PPC64_HIGHEST_S
:
2560 fixP
->fx_no_overflow
= 1;
2567 fix_new_exp (frag_now
,
2568 f
- frag_now
->fr_literal
,
2571 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2572 ((bfd_reloc_code_real_type
)
2573 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2577 /* Handle a macro. Gather all the operands, transform them as
2578 described by the macro, and call md_assemble recursively. All the
2579 operands are separated by commas; we don't accept parentheses
2580 around operands here. */
2583 ppc_macro (str
, macro
)
2585 const struct powerpc_macro
*macro
;
2596 /* Gather the users operands into the operands array. */
2601 if (count
>= sizeof operands
/ sizeof operands
[0])
2603 operands
[count
++] = s
;
2604 s
= strchr (s
, ',');
2605 if (s
== (char *) NULL
)
2610 if (count
!= macro
->operands
)
2612 as_bad (_("wrong number of operands"));
2616 /* Work out how large the string must be (the size is unbounded
2617 because it includes user input). */
2619 format
= macro
->format
;
2620 while (*format
!= '\0')
2629 arg
= strtol (format
+ 1, &send
, 10);
2630 know (send
!= format
&& arg
>= 0 && arg
< count
);
2631 len
+= strlen (operands
[arg
]);
2636 /* Put the string together. */
2637 complete
= s
= (char *) alloca (len
+ 1);
2638 format
= macro
->format
;
2639 while (*format
!= '\0')
2645 arg
= strtol (format
+ 1, &send
, 10);
2646 strcpy (s
, operands
[arg
]);
2653 /* Assemble the constructed instruction. */
2654 md_assemble (complete
);
2658 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2661 ppc_section_letter (letter
, ptr_msg
)
2668 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2673 ppc_section_word (str
, len
)
2677 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2684 ppc_section_type (str
, len
)
2688 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2695 ppc_section_flags (flags
, attr
, type
)
2700 if (type
== SHT_ORDERED
)
2701 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2703 if (attr
& SHF_EXCLUDE
)
2704 flags
|= SEC_EXCLUDE
;
2708 #endif /* OBJ_ELF */
2711 /* Pseudo-op handling. */
2713 /* The .byte pseudo-op. This is similar to the normal .byte
2714 pseudo-op, but it can also take a single ASCII string. */
2718 int ignore ATTRIBUTE_UNUSED
;
2720 if (*input_line_pointer
!= '\"')
2726 /* Gather characters. A real double quote is doubled. Unusual
2727 characters are not permitted. */
2728 ++input_line_pointer
;
2733 c
= *input_line_pointer
++;
2737 if (*input_line_pointer
!= '\"')
2739 ++input_line_pointer
;
2742 FRAG_APPEND_1_CHAR (c
);
2745 demand_empty_rest_of_line ();
2750 /* XCOFF specific pseudo-op handling. */
2752 /* This is set if we are creating a .stabx symbol, since we don't want
2753 to handle symbol suffixes for such symbols. */
2754 static boolean ppc_stab_symbol
;
2756 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2757 symbols in the .bss segment as though they were local common
2758 symbols, and uses a different smclas. The native Aix 4.3.3 assember
2759 aligns .comm and .lcomm to 4 bytes. */
2765 asection
*current_seg
= now_seg
;
2766 subsegT current_subseg
= now_subseg
;
2772 symbolS
*lcomm_sym
= NULL
;
2776 name
= input_line_pointer
;
2777 endc
= get_symbol_end ();
2778 end_name
= input_line_pointer
;
2781 if (*input_line_pointer
!= ',')
2783 as_bad (_("missing size"));
2784 ignore_rest_of_line ();
2787 ++input_line_pointer
;
2789 size
= get_absolute_expression ();
2792 as_bad (_("negative size"));
2793 ignore_rest_of_line ();
2799 /* The third argument to .comm is the alignment. */
2800 if (*input_line_pointer
!= ',')
2804 ++input_line_pointer
;
2805 align
= get_absolute_expression ();
2808 as_warn (_("ignoring bad alignment"));
2823 /* The third argument to .lcomm appears to be the real local
2824 common symbol to create. References to the symbol named in
2825 the first argument are turned into references to the third
2827 if (*input_line_pointer
!= ',')
2829 as_bad (_("missing real symbol name"));
2830 ignore_rest_of_line ();
2833 ++input_line_pointer
;
2835 lcomm_name
= input_line_pointer
;
2836 lcomm_endc
= get_symbol_end ();
2838 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2840 *input_line_pointer
= lcomm_endc
;
2844 sym
= symbol_find_or_make (name
);
2847 if (S_IS_DEFINED (sym
)
2848 || S_GET_VALUE (sym
) != 0)
2850 as_bad (_("attempt to redefine symbol"));
2851 ignore_rest_of_line ();
2855 record_alignment (bss_section
, align
);
2858 || ! S_IS_DEFINED (lcomm_sym
))
2867 S_SET_EXTERNAL (sym
);
2871 symbol_get_tc (lcomm_sym
)->output
= 1;
2872 def_sym
= lcomm_sym
;
2876 subseg_set (bss_section
, 1);
2877 frag_align (align
, 0, 0);
2879 symbol_set_frag (def_sym
, frag_now
);
2880 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
2881 def_size
, (char *) NULL
);
2883 S_SET_SEGMENT (def_sym
, bss_section
);
2884 symbol_get_tc (def_sym
)->align
= align
;
2888 /* Align the size of lcomm_sym. */
2889 symbol_get_frag (lcomm_sym
)->fr_offset
=
2890 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
2891 &~ ((1 << align
) - 1));
2892 if (align
> symbol_get_tc (lcomm_sym
)->align
)
2893 symbol_get_tc (lcomm_sym
)->align
= align
;
2898 /* Make sym an offset from lcomm_sym. */
2899 S_SET_SEGMENT (sym
, bss_section
);
2900 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
2901 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
2902 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
2905 subseg_set (current_seg
, current_subseg
);
2907 demand_empty_rest_of_line ();
2910 /* The .csect pseudo-op. This switches us into a different
2911 subsegment. The first argument is a symbol whose value is the
2912 start of the .csect. In COFF, csect symbols get special aux
2913 entries defined by the x_csect field of union internal_auxent. The
2914 optional second argument is the alignment (the default is 2). */
2918 int ignore ATTRIBUTE_UNUSED
;
2924 name
= input_line_pointer
;
2925 endc
= get_symbol_end ();
2927 sym
= symbol_find_or_make (name
);
2929 *input_line_pointer
= endc
;
2931 if (S_GET_NAME (sym
)[0] == '\0')
2933 /* An unnamed csect is assumed to be [PR]. */
2934 symbol_get_tc (sym
)->class = XMC_PR
;
2937 ppc_change_csect (sym
);
2939 if (*input_line_pointer
== ',')
2941 ++input_line_pointer
;
2942 symbol_get_tc (sym
)->align
= get_absolute_expression ();
2945 demand_empty_rest_of_line ();
2948 /* Change to a different csect. */
2951 ppc_change_csect (sym
)
2954 if (S_IS_DEFINED (sym
))
2955 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
2963 /* This is a new csect. We need to look at the symbol class to
2964 figure out whether it should go in the text section or the
2967 switch (symbol_get_tc (sym
)->class)
2977 S_SET_SEGMENT (sym
, text_section
);
2978 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
2979 ++ppc_text_subsegment
;
2980 list_ptr
= &ppc_text_csects
;
2989 if (ppc_toc_csect
!= NULL
2990 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
2991 == ppc_data_subsegment
))
2993 S_SET_SEGMENT (sym
, data_section
);
2994 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
2995 ++ppc_data_subsegment
;
2996 list_ptr
= &ppc_data_csects
;
3002 /* We set the obstack chunk size to a small value before
3003 changing subsegments, so that we don't use a lot of memory
3004 space for what may be a small section. */
3005 hold_chunksize
= chunksize
;
3008 subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3009 symbol_get_tc (sym
)->subseg
);
3011 chunksize
= hold_chunksize
;
3014 ppc_after_toc_frag
= frag_now
;
3016 symbol_set_frag (sym
, frag_now
);
3017 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3019 symbol_get_tc (sym
)->align
= 2;
3020 symbol_get_tc (sym
)->output
= 1;
3021 symbol_get_tc (sym
)->within
= sym
;
3023 for (list
= *list_ptr
;
3024 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3025 list
= symbol_get_tc (list
)->next
)
3027 symbol_get_tc (list
)->next
= sym
;
3029 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3030 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3034 ppc_current_csect
= sym
;
3037 /* This function handles the .text and .data pseudo-ops. These
3038 pseudo-ops aren't really used by XCOFF; we implement them for the
3039 convenience of people who aren't used to XCOFF. */
3050 else if (type
== 'd')
3055 sym
= symbol_find_or_make (name
);
3057 ppc_change_csect (sym
);
3059 demand_empty_rest_of_line ();
3062 /* This function handles the .section pseudo-op. This is mostly to
3063 give an error, since XCOFF only supports .text, .data and .bss, but
3064 we do permit the user to name the text or data section. */
3067 ppc_named_section (ignore
)
3068 int ignore ATTRIBUTE_UNUSED
;
3071 const char *real_name
;
3075 user_name
= input_line_pointer
;
3076 c
= get_symbol_end ();
3078 if (strcmp (user_name
, ".text") == 0)
3079 real_name
= ".text[PR]";
3080 else if (strcmp (user_name
, ".data") == 0)
3081 real_name
= ".data[RW]";
3084 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3085 *input_line_pointer
= c
;
3086 ignore_rest_of_line ();
3090 *input_line_pointer
= c
;
3092 sym
= symbol_find_or_make (real_name
);
3094 ppc_change_csect (sym
);
3096 demand_empty_rest_of_line ();
3099 /* The .extern pseudo-op. We create an undefined symbol. */
3103 int ignore ATTRIBUTE_UNUSED
;
3108 name
= input_line_pointer
;
3109 endc
= get_symbol_end ();
3111 (void) symbol_find_or_make (name
);
3113 *input_line_pointer
= endc
;
3115 demand_empty_rest_of_line ();
3118 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3122 int ignore ATTRIBUTE_UNUSED
;
3128 name
= input_line_pointer
;
3129 endc
= get_symbol_end ();
3131 sym
= symbol_find_or_make (name
);
3133 *input_line_pointer
= endc
;
3135 symbol_get_tc (sym
)->output
= 1;
3137 demand_empty_rest_of_line ();
3140 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3141 although I don't know why it bothers. */
3145 int ignore ATTRIBUTE_UNUSED
;
3152 name
= input_line_pointer
;
3153 endc
= get_symbol_end ();
3155 sym
= symbol_find_or_make (name
);
3157 *input_line_pointer
= endc
;
3159 if (*input_line_pointer
!= ',')
3161 as_bad (_("missing rename string"));
3162 ignore_rest_of_line ();
3165 ++input_line_pointer
;
3167 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3169 demand_empty_rest_of_line ();
3172 /* The .stabx pseudo-op. This is similar to a normal .stabs
3173 pseudo-op, but slightly different. A sample is
3174 .stabx "main:F-1",.main,142,0
3175 The first argument is the symbol name to create. The second is the
3176 value, and the third is the storage class. The fourth seems to be
3177 always zero, and I am assuming it is the type. */
3181 int ignore ATTRIBUTE_UNUSED
;
3188 name
= demand_copy_C_string (&len
);
3190 if (*input_line_pointer
!= ',')
3192 as_bad (_("missing value"));
3195 ++input_line_pointer
;
3197 ppc_stab_symbol
= true;
3198 sym
= symbol_make (name
);
3199 ppc_stab_symbol
= false;
3201 symbol_get_tc (sym
)->real_name
= name
;
3203 (void) expression (&exp
);
3210 as_bad (_("illegal .stabx expression; zero assumed"));
3211 exp
.X_add_number
= 0;
3214 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3215 symbol_set_frag (sym
, &zero_address_frag
);
3219 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3220 symbol_set_value_expression (sym
, &exp
);
3224 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3225 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3230 /* The value is some complex expression. This will probably
3231 fail at some later point, but this is probably the right
3232 thing to do here. */
3233 symbol_set_value_expression (sym
, &exp
);
3237 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3238 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3240 if (*input_line_pointer
!= ',')
3242 as_bad (_("missing class"));
3245 ++input_line_pointer
;
3247 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3249 if (*input_line_pointer
!= ',')
3251 as_bad (_("missing type"));
3254 ++input_line_pointer
;
3256 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3258 symbol_get_tc (sym
)->output
= 1;
3260 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3262 symbol_get_tc (sym
)->within
= ppc_current_block
;
3267 .stabx "z",arrays_,133,0
3270 .comm arrays_,13768,3
3272 resolve_symbol_value will copy the exp's "within" into sym's when the
3273 offset is 0. Since this seems to be corner case problem,
3274 only do the correction for storage class C_STSYM. A better solution
3275 would be to have the tc field updated in ppc_symbol_new_hook. */
3277 if (exp
.X_op
== O_symbol
)
3279 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3283 if (exp
.X_op
!= O_symbol
3284 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3285 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3286 ppc_frob_label (sym
);
3289 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3290 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3291 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3292 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3295 demand_empty_rest_of_line ();
3298 /* The .function pseudo-op. This takes several arguments. The first
3299 argument seems to be the external name of the symbol. The second
3300 argment seems to be the label for the start of the function. gcc
3301 uses the same name for both. I have no idea what the third and
3302 fourth arguments are meant to be. The optional fifth argument is
3303 an expression for the size of the function. In COFF this symbol
3304 gets an aux entry like that used for a csect. */
3307 ppc_function (ignore
)
3308 int ignore ATTRIBUTE_UNUSED
;
3316 name
= input_line_pointer
;
3317 endc
= get_symbol_end ();
3319 /* Ignore any [PR] suffix. */
3320 name
= ppc_canonicalize_symbol_name (name
);
3321 s
= strchr (name
, '[');
3322 if (s
!= (char *) NULL
3323 && strcmp (s
+ 1, "PR]") == 0)
3326 ext_sym
= symbol_find_or_make (name
);
3328 *input_line_pointer
= endc
;
3330 if (*input_line_pointer
!= ',')
3332 as_bad (_("missing symbol name"));
3333 ignore_rest_of_line ();
3336 ++input_line_pointer
;
3338 name
= input_line_pointer
;
3339 endc
= get_symbol_end ();
3341 lab_sym
= symbol_find_or_make (name
);
3343 *input_line_pointer
= endc
;
3345 if (ext_sym
!= lab_sym
)
3349 exp
.X_op
= O_symbol
;
3350 exp
.X_add_symbol
= lab_sym
;
3351 exp
.X_op_symbol
= NULL
;
3352 exp
.X_add_number
= 0;
3354 symbol_set_value_expression (ext_sym
, &exp
);
3357 if (symbol_get_tc (ext_sym
)->class == -1)
3358 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3359 symbol_get_tc (ext_sym
)->output
= 1;
3361 if (*input_line_pointer
== ',')
3365 /* Ignore the third argument. */
3366 ++input_line_pointer
;
3367 expression (&ignore
);
3368 if (*input_line_pointer
== ',')
3370 /* Ignore the fourth argument. */
3371 ++input_line_pointer
;
3372 expression (&ignore
);
3373 if (*input_line_pointer
== ',')
3375 /* The fifth argument is the function size. */
3376 ++input_line_pointer
;
3377 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3380 &zero_address_frag
);
3381 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3386 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3387 SF_SET_FUNCTION (ext_sym
);
3388 SF_SET_PROCESS (ext_sym
);
3389 coff_add_linesym (ext_sym
);
3391 demand_empty_rest_of_line ();
3394 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3395 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3396 with the correct line number */
3398 static symbolS
*saved_bi_sym
= 0;
3402 int ignore ATTRIBUTE_UNUSED
;
3406 sym
= symbol_make (".bf");
3407 S_SET_SEGMENT (sym
, text_section
);
3408 symbol_set_frag (sym
, frag_now
);
3409 S_SET_VALUE (sym
, frag_now_fix ());
3410 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3412 coff_line_base
= get_absolute_expression ();
3414 S_SET_NUMBER_AUXILIARY (sym
, 1);
3415 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3417 /* Line number for bi. */
3420 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3425 symbol_get_tc (sym
)->output
= 1;
3427 ppc_frob_label (sym
);
3429 demand_empty_rest_of_line ();
3432 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3433 ".ef", except that the line number is absolute, not relative to the
3434 most recent ".bf" symbol. */
3438 int ignore ATTRIBUTE_UNUSED
;
3442 sym
= symbol_make (".ef");
3443 S_SET_SEGMENT (sym
, text_section
);
3444 symbol_set_frag (sym
, frag_now
);
3445 S_SET_VALUE (sym
, frag_now_fix ());
3446 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3447 S_SET_NUMBER_AUXILIARY (sym
, 1);
3448 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3449 symbol_get_tc (sym
)->output
= 1;
3451 ppc_frob_label (sym
);
3453 demand_empty_rest_of_line ();
3456 /* The .bi and .ei pseudo-ops. These take a string argument and
3457 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3458 the symbol list. The value of .bi will be know when the next .bf
3465 static symbolS
*last_biei
;
3472 name
= demand_copy_C_string (&len
);
3474 /* The value of these symbols is actually file offset. Here we set
3475 the value to the index into the line number entries. In
3476 ppc_frob_symbols we set the fix_line field, which will cause BFD
3477 to do the right thing. */
3479 sym
= symbol_make (name
);
3480 /* obj-coff.c currently only handles line numbers correctly in the
3482 S_SET_SEGMENT (sym
, text_section
);
3483 S_SET_VALUE (sym
, coff_n_line_nos
);
3484 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3486 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3487 symbol_get_tc (sym
)->output
= 1;
3495 for (look
= last_biei
? last_biei
: symbol_rootP
;
3496 (look
!= (symbolS
*) NULL
3497 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3498 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3499 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3500 look
= symbol_next (look
))
3502 if (look
!= (symbolS
*) NULL
)
3504 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3505 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3509 demand_empty_rest_of_line ();
3512 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3513 There is one argument, which is a csect symbol. The value of the
3514 .bs symbol is the index of this csect symbol. */
3518 int ignore ATTRIBUTE_UNUSED
;
3525 if (ppc_current_block
!= NULL
)
3526 as_bad (_("nested .bs blocks"));
3528 name
= input_line_pointer
;
3529 endc
= get_symbol_end ();
3531 csect
= symbol_find_or_make (name
);
3533 *input_line_pointer
= endc
;
3535 sym
= symbol_make (".bs");
3536 S_SET_SEGMENT (sym
, now_seg
);
3537 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3538 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3539 symbol_get_tc (sym
)->output
= 1;
3541 symbol_get_tc (sym
)->within
= csect
;
3543 ppc_frob_label (sym
);
3545 ppc_current_block
= sym
;
3547 demand_empty_rest_of_line ();
3550 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3554 int ignore ATTRIBUTE_UNUSED
;
3558 if (ppc_current_block
== NULL
)
3559 as_bad (_(".es without preceding .bs"));
3561 sym
= symbol_make (".es");
3562 S_SET_SEGMENT (sym
, now_seg
);
3563 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3564 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3565 symbol_get_tc (sym
)->output
= 1;
3567 ppc_frob_label (sym
);
3569 ppc_current_block
= NULL
;
3571 demand_empty_rest_of_line ();
3574 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3579 int ignore ATTRIBUTE_UNUSED
;
3583 sym
= symbol_make (".bb");
3584 S_SET_SEGMENT (sym
, text_section
);
3585 symbol_set_frag (sym
, frag_now
);
3586 S_SET_VALUE (sym
, frag_now_fix ());
3587 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3589 S_SET_NUMBER_AUXILIARY (sym
, 1);
3590 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3592 symbol_get_tc (sym
)->output
= 1;
3594 SF_SET_PROCESS (sym
);
3596 ppc_frob_label (sym
);
3598 demand_empty_rest_of_line ();
3601 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3606 int ignore ATTRIBUTE_UNUSED
;
3610 sym
= symbol_make (".eb");
3611 S_SET_SEGMENT (sym
, text_section
);
3612 symbol_set_frag (sym
, frag_now
);
3613 S_SET_VALUE (sym
, frag_now_fix ());
3614 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3615 S_SET_NUMBER_AUXILIARY (sym
, 1);
3616 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3617 symbol_get_tc (sym
)->output
= 1;
3619 SF_SET_PROCESS (sym
);
3621 ppc_frob_label (sym
);
3623 demand_empty_rest_of_line ();
3626 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3631 int ignore ATTRIBUTE_UNUSED
;
3637 name
= demand_copy_C_string (&len
);
3638 sym
= symbol_make (name
);
3639 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3640 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3641 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3642 S_SET_VALUE (sym
, 0);
3643 symbol_get_tc (sym
)->output
= 1;
3645 ppc_frob_label (sym
);
3647 demand_empty_rest_of_line ();
3650 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3654 int ignore ATTRIBUTE_UNUSED
;
3658 sym
= symbol_make (".ec");
3659 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3660 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3661 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3662 S_SET_VALUE (sym
, 0);
3663 symbol_get_tc (sym
)->output
= 1;
3665 ppc_frob_label (sym
);
3667 demand_empty_rest_of_line ();
3670 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3674 int ignore ATTRIBUTE_UNUSED
;
3676 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3677 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3684 subseg
= ppc_data_subsegment
;
3685 ++ppc_data_subsegment
;
3687 subseg_new (segment_name (data_section
), subseg
);
3688 ppc_toc_frag
= frag_now
;
3690 sym
= symbol_find_or_make ("TOC[TC0]");
3691 symbol_set_frag (sym
, frag_now
);
3692 S_SET_SEGMENT (sym
, data_section
);
3693 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3694 symbol_get_tc (sym
)->subseg
= subseg
;
3695 symbol_get_tc (sym
)->output
= 1;
3696 symbol_get_tc (sym
)->within
= sym
;
3698 ppc_toc_csect
= sym
;
3700 for (list
= ppc_data_csects
;
3701 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3702 list
= symbol_get_tc (list
)->next
)
3704 symbol_get_tc (list
)->next
= sym
;
3706 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3707 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3711 ppc_current_csect
= ppc_toc_csect
;
3713 demand_empty_rest_of_line ();
3716 /* The AIX assembler automatically aligns the operands of a .long or
3717 .short pseudo-op, and we want to be compatible. */
3720 ppc_xcoff_cons (log_size
)
3723 frag_align (log_size
, 0, 0);
3724 record_alignment (now_seg
, log_size
);
3725 cons (1 << log_size
);
3730 int dummy ATTRIBUTE_UNUSED
;
3735 (void) expression (&exp
);
3737 if (exp
.X_op
!= O_constant
)
3739 as_bad (_("non-constant byte count"));
3743 byte_count
= exp
.X_add_number
;
3745 if (*input_line_pointer
!= ',')
3747 as_bad (_("missing value"));
3751 ++input_line_pointer
;
3755 #endif /* OBJ_XCOFF */
3756 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3758 /* The .tc pseudo-op. This is used when generating either XCOFF or
3759 ELF. This takes two or more arguments.
3761 When generating XCOFF output, the first argument is the name to
3762 give to this location in the toc; this will be a symbol with class
3763 TC. The rest of the arguments are N-byte values to actually put at
3764 this location in the TOC; often there is just one more argument, a
3765 relocateable symbol reference. The size of the value to store
3766 depends on target word size. A 32-bit target uses 4-byte values, a
3767 64-bit target uses 8-byte values.
3769 When not generating XCOFF output, the arguments are the same, but
3770 the first argument is simply ignored. */
3774 int ignore ATTRIBUTE_UNUSED
;
3778 /* Define the TOC symbol name. */
3784 if (ppc_toc_csect
== (symbolS
*) NULL
3785 || ppc_toc_csect
!= ppc_current_csect
)
3787 as_bad (_(".tc not in .toc section"));
3788 ignore_rest_of_line ();
3792 name
= input_line_pointer
;
3793 endc
= get_symbol_end ();
3795 sym
= symbol_find_or_make (name
);
3797 *input_line_pointer
= endc
;
3799 if (S_IS_DEFINED (sym
))
3803 label
= symbol_get_tc (ppc_current_csect
)->within
;
3804 if (symbol_get_tc (label
)->class != XMC_TC0
)
3806 as_bad (_(".tc with no label"));
3807 ignore_rest_of_line ();
3811 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3812 symbol_set_frag (label
, symbol_get_frag (sym
));
3813 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3815 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3816 ++input_line_pointer
;
3821 S_SET_SEGMENT (sym
, now_seg
);
3822 symbol_set_frag (sym
, frag_now
);
3823 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3824 symbol_get_tc (sym
)->class = XMC_TC
;
3825 symbol_get_tc (sym
)->output
= 1;
3827 ppc_frob_label (sym
);
3830 #endif /* OBJ_XCOFF */
3834 /* Skip the TOC symbol name. */
3835 while (is_part_of_name (*input_line_pointer
)
3836 || *input_line_pointer
== '['
3837 || *input_line_pointer
== ']'
3838 || *input_line_pointer
== '{'
3839 || *input_line_pointer
== '}')
3840 ++input_line_pointer
;
3842 /* Align to a four/eight byte boundary. */
3843 align
= ppc_obj64
? 3 : 2;
3844 frag_align (align
, 0, 0);
3845 record_alignment (now_seg
, align
);
3846 #endif /* OBJ_ELF */
3848 if (*input_line_pointer
!= ',')
3849 demand_empty_rest_of_line ();
3852 ++input_line_pointer
;
3853 cons (ppc_obj64
? 8 : 4);
3857 /* Pseudo-op .machine. */
3858 /* FIXME: `.machine' is a nop for the moment. It would be nice to
3859 accept this directive on the first line of input and set ppc_obj64
3860 and the target format accordingly. Unfortunately, the target
3861 format is selected in output-file.c:output_file_create before we
3862 even get to md_begin, so it's not possible without changing
3866 ppc_machine (ignore
)
3867 int ignore ATTRIBUTE_UNUSED
;
3869 discard_rest_of_line ();
3872 /* See whether a symbol is in the TOC section. */
3875 ppc_is_toc_sym (sym
)
3879 return symbol_get_tc (sym
)->class == XMC_TC
;
3882 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
3884 return strcmp (sname
, ".toc") == 0;
3886 return strcmp (sname
, ".got") == 0;
3889 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
3893 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
3895 /* Set the current section. */
3897 ppc_set_current_section (new)
3900 ppc_previous_section
= ppc_current_section
;
3901 ppc_current_section
= new;
3904 /* pseudo-op: .previous
3905 behaviour: toggles the current section with the previous section.
3907 warnings: "No previous section" */
3910 ppc_previous (ignore
)
3911 int ignore ATTRIBUTE_UNUSED
;
3915 if (ppc_previous_section
== NULL
)
3917 as_warn (_("No previous section to return to. Directive ignored."));
3921 subseg_set (ppc_previous_section
, 0);
3923 ppc_set_current_section (ppc_previous_section
);
3926 /* pseudo-op: .pdata
3927 behaviour: predefined read only data section
3931 initial: .section .pdata "adr3"
3932 a - don't know -- maybe a misprint
3933 d - initialized data
3935 3 - double word aligned (that would be 4 byte boundary)
3938 Tag index tables (also known as the function table) for exception
3939 handling, debugging, etc. */
3943 int ignore ATTRIBUTE_UNUSED
;
3945 if (pdata_section
== 0)
3947 pdata_section
= subseg_new (".pdata", 0);
3949 bfd_set_section_flags (stdoutput
, pdata_section
,
3950 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
3951 | SEC_READONLY
| SEC_DATA
));
3953 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
3957 pdata_section
= subseg_new (".pdata", 0);
3959 ppc_set_current_section (pdata_section
);
3962 /* pseudo-op: .ydata
3963 behaviour: predefined read only data section
3967 initial: .section .ydata "drw3"
3968 a - don't know -- maybe a misprint
3969 d - initialized data
3971 3 - double word aligned (that would be 4 byte boundary)
3973 Tag tables (also known as the scope table) for exception handling,
3978 int ignore ATTRIBUTE_UNUSED
;
3980 if (ydata_section
== 0)
3982 ydata_section
= subseg_new (".ydata", 0);
3983 bfd_set_section_flags (stdoutput
, ydata_section
,
3984 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
3985 | SEC_READONLY
| SEC_DATA
));
3987 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
3991 ydata_section
= subseg_new (".ydata", 0);
3993 ppc_set_current_section (ydata_section
);
3996 /* pseudo-op: .reldata
3997 behaviour: predefined read write data section
3998 double word aligned (4-byte)
3999 FIXME: relocation is applied to it
4000 FIXME: what's the difference between this and .data?
4003 initial: .section .reldata "drw3"
4004 d - initialized data
4007 3 - double word aligned (that would be 8 byte boundary)
4010 Like .data, but intended to hold data subject to relocation, such as
4011 function descriptors, etc. */
4014 ppc_reldata (ignore
)
4015 int ignore ATTRIBUTE_UNUSED
;
4017 if (reldata_section
== 0)
4019 reldata_section
= subseg_new (".reldata", 0);
4021 bfd_set_section_flags (stdoutput
, reldata_section
,
4022 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4025 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4029 reldata_section
= subseg_new (".reldata", 0);
4031 ppc_set_current_section (reldata_section
);
4034 /* pseudo-op: .rdata
4035 behaviour: predefined read only data section
4039 initial: .section .rdata "dr3"
4040 d - initialized data
4042 3 - double word aligned (that would be 4 byte boundary) */
4046 int ignore ATTRIBUTE_UNUSED
;
4048 if (rdata_section
== 0)
4050 rdata_section
= subseg_new (".rdata", 0);
4051 bfd_set_section_flags (stdoutput
, rdata_section
,
4052 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4053 | SEC_READONLY
| SEC_DATA
));
4055 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4059 rdata_section
= subseg_new (".rdata", 0);
4061 ppc_set_current_section (rdata_section
);
4064 /* pseudo-op: .ualong
4065 behaviour: much like .int, with the exception that no alignment is
4067 FIXME: test the alignment statement
4073 int ignore ATTRIBUTE_UNUSED
;
4079 /* pseudo-op: .znop <symbol name>
4080 behaviour: Issue a nop instruction
4081 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4082 the supplied symbol name.
4084 warnings: Missing symbol name */
4088 int ignore ATTRIBUTE_UNUSED
;
4091 const struct powerpc_opcode
*opcode
;
4102 /* Strip out the symbol name. */
4103 symbol_name
= input_line_pointer
;
4104 c
= get_symbol_end ();
4106 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4107 strcpy (name
, symbol_name
);
4109 sym
= symbol_find_or_make (name
);
4111 *input_line_pointer
= c
;
4115 /* Look up the opcode in the hash table. */
4116 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4118 /* Stick in the nop. */
4119 insn
= opcode
->opcode
;
4121 /* Write out the instruction. */
4123 md_number_to_chars (f
, insn
, 4);
4125 f
- frag_now
->fr_literal
,
4130 BFD_RELOC_16_GOT_PCREL
);
4143 register char *name
;
4147 register symbolS
*symbolP
;
4150 name
= input_line_pointer
;
4151 c
= get_symbol_end ();
4153 /* just after name is now '\0'. */
4154 p
= input_line_pointer
;
4157 if (*input_line_pointer
!= ',')
4159 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4160 ignore_rest_of_line ();
4164 input_line_pointer
++; /* skip ',' */
4165 if ((temp
= get_absolute_expression ()) < 0)
4167 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4168 ignore_rest_of_line ();
4174 /* The third argument to .comm is the alignment. */
4175 if (*input_line_pointer
!= ',')
4179 ++input_line_pointer
;
4180 align
= get_absolute_expression ();
4183 as_warn (_("ignoring bad alignment"));
4190 symbolP
= symbol_find_or_make (name
);
4193 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4195 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4196 S_GET_NAME (symbolP
));
4197 ignore_rest_of_line ();
4201 if (S_GET_VALUE (symbolP
))
4203 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4204 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4205 S_GET_NAME (symbolP
),
4206 (long) S_GET_VALUE (symbolP
),
4211 S_SET_VALUE (symbolP
, (valueT
) temp
);
4212 S_SET_EXTERNAL (symbolP
);
4215 demand_empty_rest_of_line ();
4219 * implement the .section pseudo op:
4220 * .section name {, "flags"}
4222 * | +--- optional flags: 'b' for bss
4224 * +-- section name 'l' for lib
4228 * 'd' (apparently m88k for data)
4230 * But if the argument is not a quoted string, treat it as a
4231 * subsegment number.
4233 * FIXME: this is a copy of the section processing from obj-coff.c, with
4234 * additions/changes for the moto-pas assembler support. There are three
4237 * FIXME: I just noticed this. This doesn't work at all really. It it
4238 * setting bits that bfd probably neither understands or uses. The
4239 * correct approach (?) will have to incorporate extra fields attached
4240 * to the section to hold the system specific stuff. (krk)
4243 * 'a' - unknown - referred to in documentation, but no definition supplied
4244 * 'c' - section has code
4245 * 'd' - section has initialized data
4246 * 'u' - section has uninitialized data
4247 * 'i' - section contains directives (info)
4248 * 'n' - section can be discarded
4249 * 'R' - remove section at link time
4251 * Section Protection:
4252 * 'r' - section is readable
4253 * 'w' - section is writeable
4254 * 'x' - section is executable
4255 * 's' - section is sharable
4257 * Section Alignment:
4258 * '0' - align to byte boundary
4259 * '1' - align to halfword undary
4260 * '2' - align to word boundary
4261 * '3' - align to doubleword boundary
4262 * '4' - align to quadword boundary
4263 * '5' - align to 32 byte boundary
4264 * '6' - align to 64 byte boundary
4269 ppc_pe_section (ignore
)
4270 int ignore ATTRIBUTE_UNUSED
;
4272 /* Strip out the section name. */
4281 section_name
= input_line_pointer
;
4282 c
= get_symbol_end ();
4284 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4285 strcpy (name
, section_name
);
4287 *input_line_pointer
= c
;
4292 flags
= SEC_NO_FLAGS
;
4294 if (strcmp (name
, ".idata$2") == 0)
4298 else if (strcmp (name
, ".idata$3") == 0)
4302 else if (strcmp (name
, ".idata$4") == 0)
4306 else if (strcmp (name
, ".idata$5") == 0)
4310 else if (strcmp (name
, ".idata$6") == 0)
4315 /* Default alignment to 16 byte boundary. */
4318 if (*input_line_pointer
== ',')
4320 ++input_line_pointer
;
4322 if (*input_line_pointer
!= '"')
4323 exp
= get_absolute_expression ();
4326 ++input_line_pointer
;
4327 while (*input_line_pointer
!= '"'
4328 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4330 switch (*input_line_pointer
)
4332 /* Section Contents */
4333 case 'a': /* unknown */
4334 as_bad (_("Unsupported section attribute -- 'a'"));
4336 case 'c': /* code section */
4339 case 'd': /* section has initialized data */
4342 case 'u': /* section has uninitialized data */
4343 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4347 case 'i': /* section contains directives (info) */
4348 /* FIXME: This is IMAGE_SCN_LNK_INFO
4350 flags
|= SEC_HAS_CONTENTS
;
4352 case 'n': /* section can be discarded */
4355 case 'R': /* Remove section at link time */
4356 flags
|= SEC_NEVER_LOAD
;
4359 /* Section Protection */
4360 case 'r': /* section is readable */
4361 flags
|= IMAGE_SCN_MEM_READ
;
4363 case 'w': /* section is writeable */
4364 flags
|= IMAGE_SCN_MEM_WRITE
;
4366 case 'x': /* section is executable */
4367 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4369 case 's': /* section is sharable */
4370 flags
|= IMAGE_SCN_MEM_SHARED
;
4373 /* Section Alignment */
4374 case '0': /* align to byte boundary */
4375 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4378 case '1': /* align to halfword boundary */
4379 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4382 case '2': /* align to word boundary */
4383 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4386 case '3': /* align to doubleword boundary */
4387 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4390 case '4': /* align to quadword boundary */
4391 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4394 case '5': /* align to 32 byte boundary */
4395 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4398 case '6': /* align to 64 byte boundary */
4399 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4404 as_bad (_("unknown section attribute '%c'"),
4405 *input_line_pointer
);
4408 ++input_line_pointer
;
4410 if (*input_line_pointer
== '"')
4411 ++input_line_pointer
;
4415 sec
= subseg_new (name
, (subsegT
) exp
);
4417 ppc_set_current_section (sec
);
4419 if (flags
!= SEC_NO_FLAGS
)
4421 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4422 as_bad (_("error setting flags for \"%s\": %s"),
4423 bfd_section_name (stdoutput
, sec
),
4424 bfd_errmsg (bfd_get_error ()));
4427 bfd_set_section_alignment (stdoutput
, sec
, align
);
4432 ppc_pe_function (ignore
)
4433 int ignore ATTRIBUTE_UNUSED
;
4439 name
= input_line_pointer
;
4440 endc
= get_symbol_end ();
4442 ext_sym
= symbol_find_or_make (name
);
4444 *input_line_pointer
= endc
;
4446 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4447 SF_SET_FUNCTION (ext_sym
);
4448 SF_SET_PROCESS (ext_sym
);
4449 coff_add_linesym (ext_sym
);
4451 demand_empty_rest_of_line ();
4455 ppc_pe_tocd (ignore
)
4456 int ignore ATTRIBUTE_UNUSED
;
4458 if (tocdata_section
== 0)
4460 tocdata_section
= subseg_new (".tocd", 0);
4461 /* FIXME: section flags won't work. */
4462 bfd_set_section_flags (stdoutput
, tocdata_section
,
4463 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4464 | SEC_READONLY
| SEC_DATA
));
4466 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4470 rdata_section
= subseg_new (".tocd", 0);
4473 ppc_set_current_section (tocdata_section
);
4475 demand_empty_rest_of_line ();
4478 /* Don't adjust TOC relocs to use the section symbol. */
4481 ppc_pe_fix_adjustable (fix
)
4484 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4491 /* XCOFF specific symbol and file handling. */
4493 /* Canonicalize the symbol name. We use the to force the suffix, if
4494 any, to use square brackets, and to be in upper case. */
4497 ppc_canonicalize_symbol_name (name
)
4502 if (ppc_stab_symbol
)
4505 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4519 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4522 if (*s
== '\0' || s
[1] != '\0')
4523 as_bad (_("bad symbol suffix"));
4531 /* Set the class of a symbol based on the suffix, if any. This is
4532 called whenever a new symbol is created. */
4535 ppc_symbol_new_hook (sym
)
4538 struct ppc_tc_sy
*tc
;
4541 tc
= symbol_get_tc (sym
);
4545 tc
->real_name
= NULL
;
4551 if (ppc_stab_symbol
)
4554 s
= strchr (S_GET_NAME (sym
), '[');
4555 if (s
== (const char *) NULL
)
4557 /* There is no suffix. */
4566 if (strcmp (s
, "BS]") == 0)
4570 if (strcmp (s
, "DB]") == 0)
4572 else if (strcmp (s
, "DS]") == 0)
4576 if (strcmp (s
, "GL]") == 0)
4580 if (strcmp (s
, "PR]") == 0)
4584 if (strcmp (s
, "RO]") == 0)
4586 else if (strcmp (s
, "RW]") == 0)
4590 if (strcmp (s
, "SV]") == 0)
4594 if (strcmp (s
, "TC]") == 0)
4596 else if (strcmp (s
, "TI]") == 0)
4598 else if (strcmp (s
, "TB]") == 0)
4600 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4601 tc
->class = XMC_TC0
;
4604 if (strcmp (s
, "UA]") == 0)
4606 else if (strcmp (s
, "UC]") == 0)
4610 if (strcmp (s
, "XO]") == 0)
4615 if (tc
->class == -1)
4616 as_bad (_("Unrecognized symbol suffix"));
4619 /* Set the class of a label based on where it is defined. This
4620 handles symbols without suffixes. Also, move the symbol so that it
4621 follows the csect symbol. */
4624 ppc_frob_label (sym
)
4627 if (ppc_current_csect
!= (symbolS
*) NULL
)
4629 if (symbol_get_tc (sym
)->class == -1)
4630 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4632 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4633 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4634 &symbol_rootP
, &symbol_lastP
);
4635 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4639 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4640 seen. It tells ppc_adjust_symtab whether it needs to look through
4643 static boolean ppc_saw_abs
;
4645 /* Change the name of a symbol just before writing it out. Set the
4646 real name if the .rename pseudo-op was used. Otherwise, remove any
4647 class suffix. Return 1 if the symbol should not be included in the
4651 ppc_frob_symbol (sym
)
4654 static symbolS
*ppc_last_function
;
4655 static symbolS
*set_end
;
4657 /* Discard symbols that should not be included in the output symbol
4659 if (! symbol_used_in_reloc_p (sym
)
4660 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4661 || (! S_IS_EXTERNAL (sym
)
4662 && ! symbol_get_tc (sym
)->output
4663 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4666 /* This one will disappear anyway. Don't make a csect sym for it. */
4667 if (sym
== abs_section_sym
)
4670 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4671 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4677 name
= S_GET_NAME (sym
);
4678 s
= strchr (name
, '[');
4679 if (s
!= (char *) NULL
)
4685 snew
= xmalloc (len
+ 1);
4686 memcpy (snew
, name
, len
);
4689 S_SET_NAME (sym
, snew
);
4693 if (set_end
!= (symbolS
*) NULL
)
4695 SA_SET_SYM_ENDNDX (set_end
, sym
);
4699 if (SF_GET_FUNCTION (sym
))
4701 if (ppc_last_function
!= (symbolS
*) NULL
)
4702 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4703 ppc_last_function
= sym
;
4704 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4706 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4707 SA_SET_SYM_FSIZE (sym
,
4708 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4711 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4712 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4714 if (ppc_last_function
== (symbolS
*) NULL
)
4715 as_bad (_(".ef with no preceding .function"));
4718 set_end
= ppc_last_function
;
4719 ppc_last_function
= NULL
;
4721 /* We don't have a C_EFCN symbol, but we need to force the
4722 COFF backend to believe that it has seen one. */
4723 coff_last_function
= NULL
;
4727 if (! S_IS_EXTERNAL (sym
)
4728 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4729 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4730 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4731 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4732 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4733 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4734 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4735 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4736 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4737 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4739 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4740 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4743 union internal_auxent
*a
;
4745 /* Create a csect aux. */
4746 i
= S_GET_NUMBER_AUXILIARY (sym
);
4747 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4748 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4749 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4751 /* This is the TOC table. */
4752 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4753 a
->x_csect
.x_scnlen
.l
= 0;
4754 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4756 else if (symbol_get_tc (sym
)->subseg
!= 0)
4758 /* This is a csect symbol. x_scnlen is the size of the
4760 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4761 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4762 S_GET_SEGMENT (sym
))
4763 - S_GET_VALUE (sym
));
4766 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4767 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4768 - S_GET_VALUE (sym
));
4770 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4772 else if (S_GET_SEGMENT (sym
) == bss_section
)
4774 /* This is a common symbol. */
4775 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4776 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4777 if (S_IS_EXTERNAL (sym
))
4778 symbol_get_tc (sym
)->class = XMC_RW
;
4780 symbol_get_tc (sym
)->class = XMC_BS
;
4782 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4784 /* This is an absolute symbol. The csect will be created by
4785 ppc_adjust_symtab. */
4787 a
->x_csect
.x_smtyp
= XTY_LD
;
4788 if (symbol_get_tc (sym
)->class == -1)
4789 symbol_get_tc (sym
)->class = XMC_XO
;
4791 else if (! S_IS_DEFINED (sym
))
4793 /* This is an external symbol. */
4794 a
->x_csect
.x_scnlen
.l
= 0;
4795 a
->x_csect
.x_smtyp
= XTY_ER
;
4797 else if (symbol_get_tc (sym
)->class == XMC_TC
)
4801 /* This is a TOC definition. x_scnlen is the size of the
4803 next
= symbol_next (sym
);
4804 while (symbol_get_tc (next
)->class == XMC_TC0
)
4805 next
= symbol_next (next
);
4806 if (next
== (symbolS
*) NULL
4807 || symbol_get_tc (next
)->class != XMC_TC
)
4809 if (ppc_after_toc_frag
== (fragS
*) NULL
)
4810 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4812 - S_GET_VALUE (sym
));
4814 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
4815 - S_GET_VALUE (sym
));
4819 resolve_symbol_value (next
);
4820 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
4821 - S_GET_VALUE (sym
));
4823 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4829 /* This is a normal symbol definition. x_scnlen is the
4830 symbol index of the containing csect. */
4831 if (S_GET_SEGMENT (sym
) == text_section
)
4832 csect
= ppc_text_csects
;
4833 else if (S_GET_SEGMENT (sym
) == data_section
)
4834 csect
= ppc_data_csects
;
4838 /* Skip the initial dummy symbol. */
4839 csect
= symbol_get_tc (csect
)->next
;
4841 if (csect
== (symbolS
*) NULL
)
4843 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
4844 a
->x_csect
.x_scnlen
.l
= 0;
4848 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
4850 resolve_symbol_value (symbol_get_tc (csect
)->next
);
4851 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
4852 > S_GET_VALUE (sym
))
4854 csect
= symbol_get_tc (csect
)->next
;
4857 a
->x_csect
.x_scnlen
.p
=
4858 coffsymbol (symbol_get_bfdsym (csect
))->native
;
4859 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
4862 a
->x_csect
.x_smtyp
= XTY_LD
;
4865 a
->x_csect
.x_parmhash
= 0;
4866 a
->x_csect
.x_snhash
= 0;
4867 if (symbol_get_tc (sym
)->class == -1)
4868 a
->x_csect
.x_smclas
= XMC_PR
;
4870 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
4871 a
->x_csect
.x_stab
= 0;
4872 a
->x_csect
.x_snstab
= 0;
4874 /* Don't let the COFF backend resort these symbols. */
4875 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
4877 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
4879 /* We want the value to be the symbol index of the referenced
4880 csect symbol. BFD will do that for us if we set the right
4882 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
4883 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
4885 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
4886 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
4888 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4893 /* The value is the offset from the enclosing csect. */
4894 block
= symbol_get_tc (sym
)->within
;
4895 csect
= symbol_get_tc (block
)->within
;
4896 resolve_symbol_value (csect
);
4897 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
4899 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
4900 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
4902 /* We want the value to be a file offset into the line numbers.
4903 BFD will do that for us if we set the right flags. We have
4904 already set the value correctly. */
4905 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
4911 /* Adjust the symbol table. This creates csect symbols for all
4912 absolute symbols. */
4915 ppc_adjust_symtab ()
4922 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
4926 union internal_auxent
*a
;
4928 if (S_GET_SEGMENT (sym
) != absolute_section
)
4931 csect
= symbol_create (".abs[XO]", absolute_section
,
4932 S_GET_VALUE (sym
), &zero_address_frag
);
4933 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
4934 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
4935 i
= S_GET_NUMBER_AUXILIARY (csect
);
4936 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
4937 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
4938 a
->x_csect
.x_scnlen
.l
= 0;
4939 a
->x_csect
.x_smtyp
= XTY_SD
;
4940 a
->x_csect
.x_parmhash
= 0;
4941 a
->x_csect
.x_snhash
= 0;
4942 a
->x_csect
.x_smclas
= XMC_XO
;
4943 a
->x_csect
.x_stab
= 0;
4944 a
->x_csect
.x_snstab
= 0;
4946 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
4948 i
= S_GET_NUMBER_AUXILIARY (sym
);
4949 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
4950 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
4951 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
4954 ppc_saw_abs
= false;
4957 /* Set the VMA for a section. This is called on all the sections in
4961 ppc_frob_section (sec
)
4964 static bfd_size_type vma
= 0;
4966 bfd_set_section_vma (stdoutput
, sec
, vma
);
4967 vma
+= bfd_section_size (stdoutput
, sec
);
4970 #endif /* OBJ_XCOFF */
4972 /* Turn a string in input_line_pointer into a floating point constant
4973 of type TYPE, and store the appropriate bytes in *LITP. The number
4974 of LITTLENUMS emitted is stored in *SIZEP. An error message is
4975 returned, or NULL on OK. */
4978 md_atof (type
, litp
, sizep
)
4984 LITTLENUM_TYPE words
[4];
5000 return _("bad call to md_atof");
5003 t
= atof_ieee (input_line_pointer
, type
, words
);
5005 input_line_pointer
= t
;
5009 if (target_big_endian
)
5011 for (i
= 0; i
< prec
; i
++)
5013 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5019 for (i
= prec
- 1; i
>= 0; i
--)
5021 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5029 /* Write a value out to the object file, using the appropriate
5033 md_number_to_chars (buf
, val
, n
)
5038 if (target_big_endian
)
5039 number_to_chars_bigendian (buf
, val
, n
);
5041 number_to_chars_littleendian (buf
, val
, n
);
5044 /* Align a section (I don't know why this is machine dependent). */
5047 md_section_align (seg
, addr
)
5051 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5053 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5056 /* We don't have any form of relaxing. */
5059 md_estimate_size_before_relax (fragp
, seg
)
5060 fragS
*fragp ATTRIBUTE_UNUSED
;
5061 asection
*seg ATTRIBUTE_UNUSED
;
5067 /* Convert a machine dependent frag. We never generate these. */
5070 md_convert_frag (abfd
, sec
, fragp
)
5071 bfd
*abfd ATTRIBUTE_UNUSED
;
5072 asection
*sec ATTRIBUTE_UNUSED
;
5073 fragS
*fragp ATTRIBUTE_UNUSED
;
5078 /* We have no need to default values of symbols. */
5081 md_undefined_symbol (name
)
5082 char *name ATTRIBUTE_UNUSED
;
5087 /* Functions concerning relocs. */
5089 /* The location from which a PC relative jump should be calculated,
5090 given a PC relative reloc. */
5093 md_pcrel_from_section (fixp
, sec
)
5095 segT sec ATTRIBUTE_UNUSED
;
5097 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5102 /* This is called to see whether a fixup should be adjusted to use a
5103 section symbol. We take the opportunity to change a fixup against
5104 a symbol in the TOC subsegment into a reloc against the
5105 corresponding .tc symbol. */
5108 ppc_fix_adjustable (fix
)
5111 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5112 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5113 TC_SYMFIELD_TYPE
*tc
;
5115 if (symseg
== absolute_section
)
5118 if (ppc_toc_csect
!= (symbolS
*) NULL
5119 && fix
->fx_addsy
!= ppc_toc_csect
5120 && symseg
== data_section
5121 && val
>= ppc_toc_frag
->fr_address
5122 && (ppc_after_toc_frag
== (fragS
*) NULL
5123 || val
< ppc_after_toc_frag
->fr_address
))
5127 for (sy
= symbol_next (ppc_toc_csect
);
5128 sy
!= (symbolS
*) NULL
;
5129 sy
= symbol_next (sy
))
5131 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5133 if (sy_tc
->class == XMC_TC0
)
5135 if (sy_tc
->class != XMC_TC
)
5137 if (val
== resolve_symbol_value (sy
))
5140 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5145 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5146 _("symbol in .toc does not match any .tc"));
5149 /* Possibly adjust the reloc to be against the csect. */
5150 tc
= symbol_get_tc (fix
->fx_addsy
);
5152 && tc
->class != XMC_TC0
5153 && tc
->class != XMC_TC
5154 && symseg
!= bss_section
5155 /* Don't adjust if this is a reloc in the toc section. */
5156 && (symseg
!= data_section
5157 || ppc_toc_csect
== NULL
5158 || val
< ppc_toc_frag
->fr_address
5159 || (ppc_after_toc_frag
!= NULL
5160 && val
>= ppc_after_toc_frag
->fr_address
)))
5163 symbolS
*next_csect
;
5165 if (symseg
== text_section
)
5166 csect
= ppc_text_csects
;
5167 else if (symseg
== data_section
)
5168 csect
= ppc_data_csects
;
5172 /* Skip the initial dummy symbol. */
5173 csect
= symbol_get_tc (csect
)->next
;
5175 if (csect
!= (symbolS
*) NULL
)
5177 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5178 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5180 /* If the csect address equals the symbol value, then we
5181 have to look through the full symbol table to see
5182 whether this is the csect we want. Note that we will
5183 only get here if the csect has zero length. */
5184 if (symbol_get_frag (csect
)->fr_address
== val
5185 && S_GET_VALUE (csect
) == val
)
5189 for (scan
= symbol_next (csect
);
5191 scan
= symbol_next (scan
))
5193 if (symbol_get_tc (scan
)->subseg
!= 0)
5195 if (scan
== fix
->fx_addsy
)
5199 /* If we found the symbol before the next csect
5200 symbol, then this is the csect we want. */
5201 if (scan
== fix
->fx_addsy
)
5208 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5209 fix
->fx_addsy
= csect
;
5214 /* Adjust a reloc against a .lcomm symbol to be against the base
5216 if (symseg
== bss_section
5217 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5219 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5221 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5228 /* A reloc from one csect to another must be kept. The assembler
5229 will, of course, keep relocs between sections, and it will keep
5230 absolute relocs, but we need to force it to keep PC relative relocs
5231 between two csects in the same section. */
5234 ppc_force_relocation (fix
)
5237 /* At this point fix->fx_addsy should already have been converted to
5238 a csect symbol. If the csect does not include the fragment, then
5239 we need to force the relocation. */
5241 && fix
->fx_addsy
!= NULL
5242 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5243 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5244 > fix
->fx_frag
->fr_address
)
5245 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5246 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5247 <= fix
->fx_frag
->fr_address
))))
5250 return S_FORCE_RELOC (fix
->fx_addsy
);
5253 #endif /* OBJ_XCOFF */
5256 /* If this function returns non-zero, it guarantees that a relocation
5257 will be emitted for a fixup. */
5260 ppc_force_relocation (fix
)
5263 /* Branch prediction relocations must force a relocation, as must
5264 the vtable description relocs. */
5265 switch (fix
->fx_r_type
)
5267 case BFD_RELOC_PPC_B16_BRTAKEN
:
5268 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5269 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5270 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5271 case BFD_RELOC_PPC64_TOC
:
5272 case BFD_RELOC_VTABLE_INHERIT
:
5273 case BFD_RELOC_VTABLE_ENTRY
:
5279 return S_FORCE_RELOC (fix
->fx_addsy
);
5283 ppc_fix_adjustable (fix
)
5286 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5287 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5288 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5289 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5290 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5291 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5292 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5294 || (fix
->fx_subsy
!= NULL
5295 && (S_GET_SEGMENT (fix
->fx_subsy
)
5296 == S_GET_SEGMENT (fix
->fx_addsy
)))
5297 || S_IS_LOCAL (fix
->fx_addsy
)));
5301 /* Apply a fixup to the object code. This is called for all the
5302 fixups we generated by the call to fix_new_exp, above. In the call
5303 above we used a reloc code which was the largest legal reloc code
5304 plus the operand index. Here we undo that to recover the operand
5305 index. At this point all symbol values should be fully resolved,
5306 and we attempt to completely resolve the reloc. If we can not do
5307 that, we determine the correct reloc code and put it back in the
5311 md_apply_fix3 (fixP
, valP
, seg
)
5314 segT seg ATTRIBUTE_UNUSED
;
5316 valueT value
= * valP
;
5319 if (fixP
->fx_addsy
!= NULL
)
5321 /* Hack around bfd_install_relocation brain damage. */
5323 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5328 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5329 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5330 doing this relocation the code in write.c is going to call
5331 bfd_install_relocation, which is also going to use the symbol
5332 value. That means that if the reloc is fully resolved we want to
5333 use *valP since bfd_install_relocation is not being used.
5334 However, if the reloc is not fully resolved we do not want to use
5335 *valP, and must use fx_offset instead. However, if the reloc
5336 is PC relative, we do want to use *valP since it includes the
5337 result of md_pcrel_from. This is confusing. */
5338 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5341 else if (fixP
->fx_pcrel
)
5345 value
= fixP
->fx_offset
;
5348 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5350 /* We can't actually support subtracting a symbol. */
5351 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5354 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5357 const struct powerpc_operand
*operand
;
5361 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5363 operand
= &powerpc_operands
[opindex
];
5366 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5367 does not generate a reloc. It uses the offset of `sym' within its
5368 csect. Other usages, such as `.long sym', generate relocs. This
5369 is the documented behaviour of non-TOC symbols. */
5370 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5371 && operand
->bits
== 16
5372 && operand
->shift
== 0
5373 && (operand
->insert
== NULL
|| ppc_obj64
)
5374 && fixP
->fx_addsy
!= NULL
5375 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5376 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5377 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5378 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5380 value
= fixP
->fx_offset
;
5385 /* Fetch the instruction, insert the fully resolved operand
5386 value, and stuff the instruction back again. */
5387 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5388 if (target_big_endian
)
5389 insn
= bfd_getb32 ((unsigned char *) where
);
5391 insn
= bfd_getl32 ((unsigned char *) where
);
5392 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5393 fixP
->fx_file
, fixP
->fx_line
);
5394 if (target_big_endian
)
5395 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5397 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5400 /* Nothing else to do here. */
5403 assert (fixP
->fx_addsy
!= NULL
);
5405 /* Determine a BFD reloc value based on the operand information.
5406 We are only prepared to turn a few of the operands into
5408 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5409 && operand
->bits
== 26
5410 && operand
->shift
== 0)
5411 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5412 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5413 && operand
->bits
== 16
5414 && operand
->shift
== 0)
5416 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5419 if (target_big_endian
)
5420 fixP
->fx_where
+= 2;
5423 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5424 && operand
->bits
== 26
5425 && operand
->shift
== 0)
5426 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5427 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5428 && operand
->bits
== 16
5429 && operand
->shift
== 0)
5431 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5434 if (target_big_endian
)
5435 fixP
->fx_where
+= 2;
5438 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5439 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5440 && operand
->bits
== 16
5441 && operand
->shift
== 0
5442 && ppc_is_toc_sym (fixP
->fx_addsy
))
5444 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5447 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5448 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5451 if (target_big_endian
)
5452 fixP
->fx_where
+= 2;
5454 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5460 /* Use expr_symbol_where to see if this is an expression
5462 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5463 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5464 _("unresolved expression that must be resolved"));
5466 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5467 _("unsupported relocation against %s"),
5468 S_GET_NAME (fixP
->fx_addsy
));
5476 ppc_elf_validate_fix (fixP
, seg
);
5478 switch (fixP
->fx_r_type
)
5480 case BFD_RELOC_CTOR
:
5487 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5491 case BFD_RELOC_32_PCREL
:
5492 case BFD_RELOC_PPC_EMB_NADDR32
:
5493 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5500 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5503 case BFD_RELOC_64_PCREL
:
5504 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5508 case BFD_RELOC_LO16
:
5510 case BFD_RELOC_GPREL16
:
5511 case BFD_RELOC_16_GOT_PCREL
:
5512 case BFD_RELOC_16_GOTOFF
:
5513 case BFD_RELOC_LO16_GOTOFF
:
5514 case BFD_RELOC_HI16_GOTOFF
:
5515 case BFD_RELOC_HI16_S_GOTOFF
:
5516 case BFD_RELOC_16_BASEREL
:
5517 case BFD_RELOC_LO16_BASEREL
:
5518 case BFD_RELOC_HI16_BASEREL
:
5519 case BFD_RELOC_HI16_S_BASEREL
:
5520 case BFD_RELOC_PPC_EMB_NADDR16
:
5521 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5522 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5523 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5524 case BFD_RELOC_PPC_EMB_SDAI16
:
5525 case BFD_RELOC_PPC_EMB_SDA2REL
:
5526 case BFD_RELOC_PPC_EMB_SDA2I16
:
5527 case BFD_RELOC_PPC_EMB_RELSEC16
:
5528 case BFD_RELOC_PPC_EMB_RELST_LO
:
5529 case BFD_RELOC_PPC_EMB_RELST_HI
:
5530 case BFD_RELOC_PPC_EMB_RELST_HA
:
5531 case BFD_RELOC_PPC_EMB_RELSDA
:
5532 case BFD_RELOC_PPC_TOC16
:
5534 case BFD_RELOC_PPC64_TOC16_LO
:
5535 case BFD_RELOC_PPC64_TOC16_HI
:
5536 case BFD_RELOC_PPC64_TOC16_HA
:
5540 if (fixP
->fx_addsy
!= NULL
)
5541 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5542 _("cannot emit PC relative %s relocation against %s"),
5543 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5544 S_GET_NAME (fixP
->fx_addsy
));
5546 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5547 _("cannot emit PC relative %s relocation"),
5548 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5551 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5555 /* This case happens when you write, for example,
5557 where L1 and L2 are defined later. */
5558 case BFD_RELOC_HI16
:
5561 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5565 case BFD_RELOC_HI16_S
:
5568 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5573 case BFD_RELOC_PPC64_HIGHER
:
5576 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5577 PPC_HIGHER (value
), 2);
5580 case BFD_RELOC_PPC64_HIGHER_S
:
5583 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5584 PPC_HIGHERA (value
), 2);
5587 case BFD_RELOC_PPC64_HIGHEST
:
5590 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5591 PPC_HIGHEST (value
), 2);
5594 case BFD_RELOC_PPC64_HIGHEST_S
:
5597 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5598 PPC_HIGHESTA (value
), 2);
5601 case BFD_RELOC_PPC64_ADDR16_DS
:
5602 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5603 case BFD_RELOC_PPC64_GOT16_DS
:
5604 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5605 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5606 case BFD_RELOC_PPC64_SECTOFF_DS
:
5607 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5608 case BFD_RELOC_PPC64_TOC16_DS
:
5609 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5610 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5611 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5615 unsigned char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5618 if (target_big_endian
)
5619 val
= bfd_getb16 (where
);
5621 val
= bfd_getl16 (where
);
5622 val
|= (value
& 0xfffc);
5623 if (target_big_endian
)
5624 bfd_putb16 ((bfd_vma
) val
, where
);
5626 bfd_putl16 ((bfd_vma
) val
, where
);
5630 /* Because SDA21 modifies the register field, the size is set to 4
5631 bytes, rather than 2, so offset it here appropriately. */
5632 case BFD_RELOC_PPC_EMB_SDA21
:
5636 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5637 + ((target_big_endian
) ? 2 : 0),
5645 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5649 case BFD_RELOC_24_PLT_PCREL
:
5650 case BFD_RELOC_PPC_LOCAL24PC
:
5651 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5659 /* Fetch the instruction, insert the fully resolved operand
5660 value, and stuff the instruction back again. */
5661 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5662 if (target_big_endian
)
5663 insn
= bfd_getb32 ((unsigned char *) where
);
5665 insn
= bfd_getl32 ((unsigned char *) where
);
5666 if ((value
& 3) != 0)
5667 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5668 _("must branch to an address a multiple of 4"));
5669 if ((offsetT
) value
< -0x40000000
5670 || (offsetT
) value
>= 0x40000000)
5671 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5672 _("@local or @plt branch destination is too far away, %ld bytes"),
5674 insn
= insn
| (value
& 0x03fffffc);
5675 if (target_big_endian
)
5676 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5678 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5682 case BFD_RELOC_VTABLE_INHERIT
:
5685 && !S_IS_DEFINED (fixP
->fx_addsy
)
5686 && !S_IS_WEAK (fixP
->fx_addsy
))
5687 S_SET_WEAK (fixP
->fx_addsy
);
5690 case BFD_RELOC_VTABLE_ENTRY
:
5695 /* Generated by reference to `sym@tocbase'. The sym is
5696 ignored by the linker. */
5697 case BFD_RELOC_PPC64_TOC
:
5703 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
5710 fixP
->fx_addnumber
= value
;
5712 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
5713 fixP
->fx_addnumber
= 0;
5717 fixP
->fx_addnumber
= 0;
5719 /* We want to use the offset within the data segment of the
5720 symbol, not the actual VMA of the symbol. */
5721 fixP
->fx_addnumber
=
5722 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
5728 /* Generate a reloc for a fixup. */
5731 tc_gen_reloc (seg
, fixp
)
5732 asection
*seg ATTRIBUTE_UNUSED
;
5737 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
5739 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
5740 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
5741 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5742 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
5743 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
5745 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
5746 _("reloc %d not supported by object file format"),
5747 (int) fixp
->fx_r_type
);
5750 reloc
->addend
= fixp
->fx_addnumber
;