1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003
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 bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
88 static bfd_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
*, offsetT
));
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 /* '+' and '-' can be used as postfix predicate predictors for conditional
187 branches. So they need to be accepted as symbol characters. */
188 const char ppc_symbol_chars
[] = "+-";
190 /* The target specific pseudo-ops which we support. */
192 const pseudo_typeS md_pseudo_table
[] =
194 /* Pseudo-ops which must be overridden. */
195 { "byte", ppc_byte
, 0 },
198 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
199 legitimately belong in the obj-*.c file. However, XCOFF is based
200 on COFF, and is only implemented for the RS/6000. We just use
201 obj-coff.c, and add what we need here. */
202 { "comm", ppc_comm
, 0 },
203 { "lcomm", ppc_comm
, 1 },
207 { "bi", ppc_biei
, 0 },
209 { "csect", ppc_csect
, 0 },
210 { "data", ppc_section
, 'd' },
214 { "ei", ppc_biei
, 1 },
216 { "extern", ppc_extern
, 0 },
217 { "function", ppc_function
, 0 },
218 { "lglobl", ppc_lglobl
, 0 },
219 { "rename", ppc_rename
, 0 },
220 { "section", ppc_named_section
, 0 },
221 { "stabx", ppc_stabx
, 0 },
222 { "text", ppc_section
, 't' },
223 { "toc", ppc_toc
, 0 },
224 { "long", ppc_xcoff_cons
, 2 },
225 { "llong", ppc_xcoff_cons
, 3 },
226 { "word", ppc_xcoff_cons
, 1 },
227 { "short", ppc_xcoff_cons
, 1 },
228 { "vbyte", ppc_vbyte
, 0 },
232 { "llong", ppc_elf_cons
, 8 },
233 { "quad", ppc_elf_cons
, 8 },
234 { "long", ppc_elf_cons
, 4 },
235 { "word", ppc_elf_cons
, 2 },
236 { "short", ppc_elf_cons
, 2 },
237 { "rdata", ppc_elf_rdata
, 0 },
238 { "rodata", ppc_elf_rdata
, 0 },
239 { "lcomm", ppc_elf_lcomm
, 0 },
243 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
244 { "previous", ppc_previous
, 0 },
245 { "pdata", ppc_pdata
, 0 },
246 { "ydata", ppc_ydata
, 0 },
247 { "reldata", ppc_reldata
, 0 },
248 { "rdata", ppc_rdata
, 0 },
249 { "ualong", ppc_ualong
, 0 },
250 { "znop", ppc_znop
, 0 },
251 { "comm", ppc_pe_comm
, 0 },
252 { "lcomm", ppc_pe_comm
, 1 },
253 { "section", ppc_pe_section
, 0 },
254 { "function", ppc_pe_function
,0 },
255 { "tocd", ppc_pe_tocd
, 0 },
258 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
260 { "machine", ppc_machine
, 0 },
267 /* Predefined register names if -mregnames (or default for Windows NT).
268 In general, there are lots of them, in an attempt to be compatible
269 with a number of other Windows NT assemblers. */
271 /* Structure to hold information about predefined registers. */
278 /* List of registers that are pre-defined:
280 Each general register has predefined names of the form:
281 1. r<reg_num> which has the value <reg_num>.
282 2. r.<reg_num> which has the value <reg_num>.
284 Each floating point register has predefined names of the form:
285 1. f<reg_num> which has the value <reg_num>.
286 2. f.<reg_num> which has the value <reg_num>.
288 Each vector unit register has predefined names of the form:
289 1. v<reg_num> which has the value <reg_num>.
290 2. v.<reg_num> which has the value <reg_num>.
292 Each condition register has predefined names of the form:
293 1. cr<reg_num> which has the value <reg_num>.
294 2. cr.<reg_num> which has the value <reg_num>.
296 There are individual registers as well:
297 sp or r.sp has the value 1
298 rtoc or r.toc has the value 2
299 fpscr has the value 0
305 dsisr has the value 18
307 sdr1 has the value 25
308 srr0 has the value 26
309 srr1 has the value 27
311 The table is sorted. Suitable for searching by a binary search. */
313 static const struct pd_reg pre_defined_registers
[] =
315 { "cr.0", 0 }, /* Condition Registers */
335 { "dar", 19 }, /* Data Access Register */
336 { "dec", 22 }, /* Decrementer */
337 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
339 { "f.0", 0 }, /* Floating point registers */
407 { "lr", 8 }, /* Link Register */
411 { "r.0", 0 }, /* General Purpose Registers */
444 { "r.sp", 1 }, /* Stack Pointer */
446 { "r.toc", 2 }, /* Pointer to the table of contents */
448 { "r0", 0 }, /* More general purpose registers */
481 { "rtoc", 2 }, /* Table of contents */
483 { "sdr1", 25 }, /* Storage Description Register 1 */
487 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
488 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
490 { "v.0", 0 }, /* Vector registers */
560 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
562 /* Given NAME, find the register number associated with that name, return
563 the integer value associated with the given name or -1 on failure. */
565 static int reg_name_search
566 PARAMS ((const struct pd_reg
*, int, const char * name
));
569 reg_name_search (regs
, regcount
, name
)
570 const struct pd_reg
*regs
;
574 int middle
, low
, high
;
582 middle
= (low
+ high
) / 2;
583 cmp
= strcasecmp (name
, regs
[middle
].name
);
589 return regs
[middle
].value
;
597 * Summary of register_name.
599 * in: Input_line_pointer points to 1st char of operand.
601 * out: A expressionS.
602 * The operand may have been a register: in this case, X_op == O_register,
603 * X_add_number is set to the register number, and truth is returned.
604 * Input_line_pointer->(next non-blank) char after operand, or is in its
609 register_name (expressionP
)
610 expressionS
*expressionP
;
617 /* Find the spelling of the operand. */
618 start
= name
= input_line_pointer
;
619 if (name
[0] == '%' && ISALPHA (name
[1]))
620 name
= ++input_line_pointer
;
622 else if (!reg_names_p
|| !ISALPHA (name
[0]))
625 c
= get_symbol_end ();
626 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
628 /* Put back the delimiting char. */
629 *input_line_pointer
= c
;
631 /* Look to see if it's in the register table. */
634 expressionP
->X_op
= O_register
;
635 expressionP
->X_add_number
= reg_number
;
637 /* Make the rest nice. */
638 expressionP
->X_add_symbol
= NULL
;
639 expressionP
->X_op_symbol
= NULL
;
643 /* Reset the line as if we had not done anything. */
644 input_line_pointer
= start
;
648 /* This function is called for each symbol seen in an expression. It
649 handles the special parsing which PowerPC assemblers are supposed
650 to use for condition codes. */
652 /* Whether to do the special parsing. */
653 static bfd_boolean cr_operand
;
655 /* Names to recognize in a condition code. This table is sorted. */
656 static const struct pd_reg cr_names
[] =
673 /* Parsing function. This returns non-zero if it recognized an
677 ppc_parse_name (name
, expr
)
686 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
691 expr
->X_op
= O_constant
;
692 expr
->X_add_number
= val
;
697 /* Local variables. */
699 /* The type of processor we are assembling for. This is one or more
700 of the PPC_OPCODE flags defined in opcode/ppc.h. */
701 static unsigned long ppc_cpu
= 0;
703 /* Whether to target xcoff64/elf64. */
704 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
706 /* Opcode hash table. */
707 static struct hash_control
*ppc_hash
;
709 /* Macro hash table. */
710 static struct hash_control
*ppc_macro_hash
;
713 /* What type of shared library support to use. */
714 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
716 /* Flags to set in the elf header. */
717 static flagword ppc_flags
= 0;
719 /* Whether this is Solaris or not. */
720 #ifdef TARGET_SOLARIS_COMMENT
721 #define SOLARIS_P TRUE
723 #define SOLARIS_P FALSE
726 static bfd_boolean msolaris
= SOLARIS_P
;
731 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
732 using a bunch of different sections. These assembler sections,
733 however, are all encompassed within the .text or .data sections of
734 the final output file. We handle this by using different
735 subsegments within these main segments. */
737 /* Next subsegment to allocate within the .text segment. */
738 static subsegT ppc_text_subsegment
= 2;
740 /* Linked list of csects in the text section. */
741 static symbolS
*ppc_text_csects
;
743 /* Next subsegment to allocate within the .data segment. */
744 static subsegT ppc_data_subsegment
= 2;
746 /* Linked list of csects in the data section. */
747 static symbolS
*ppc_data_csects
;
749 /* The current csect. */
750 static symbolS
*ppc_current_csect
;
752 /* The RS/6000 assembler uses a TOC which holds addresses of functions
753 and variables. Symbols are put in the TOC with the .tc pseudo-op.
754 A special relocation is used when accessing TOC entries. We handle
755 the TOC as a subsegment within the .data segment. We set it up if
756 we see a .toc pseudo-op, and save the csect symbol here. */
757 static symbolS
*ppc_toc_csect
;
759 /* The first frag in the TOC subsegment. */
760 static fragS
*ppc_toc_frag
;
762 /* The first frag in the first subsegment after the TOC in the .data
763 segment. NULL if there are no subsegments after the TOC. */
764 static fragS
*ppc_after_toc_frag
;
766 /* The current static block. */
767 static symbolS
*ppc_current_block
;
769 /* The COFF debugging section; set by md_begin. This is not the
770 .debug section, but is instead the secret BFD section which will
771 cause BFD to set the section number of a symbol to N_DEBUG. */
772 static asection
*ppc_coff_debug_section
;
774 #endif /* OBJ_XCOFF */
778 /* Various sections that we need for PE coff support. */
779 static segT ydata_section
;
780 static segT pdata_section
;
781 static segT reldata_section
;
782 static segT rdata_section
;
783 static segT tocdata_section
;
785 /* The current section and the previous section. See ppc_previous. */
786 static segT ppc_previous_section
;
787 static segT ppc_current_section
;
792 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
793 #define PPC_APUINFO_ISEL 0x40
794 #define PPC_APUINFO_PMR 0x41
795 #define PPC_APUINFO_RFMCI 0x42
796 #define PPC_APUINFO_CACHELCK 0x43
797 #define PPC_APUINFO_SPE 0x100
798 #define PPC_APUINFO_EFS 0x101
799 #define PPC_APUINFO_BRLOCK 0x102
802 * We keep a list of APUinfo
804 unsigned long *ppc_apuinfo_list
;
805 unsigned int ppc_apuinfo_num
;
806 unsigned int ppc_apuinfo_num_alloc
;
810 const char *const md_shortopts
= "b:l:usm:K:VQ:";
812 const char *const md_shortopts
= "um:";
814 const struct option md_longopts
[] = {
815 {NULL
, no_argument
, NULL
, 0}
817 const size_t md_longopts_size
= sizeof (md_longopts
);
820 md_parse_option (c
, arg
)
827 /* -u means that any undefined symbols should be treated as
828 external, which is the default for gas anyhow. */
833 /* Solaris as takes -le (presumably for little endian). For completeness
834 sake, recognize -be also. */
835 if (strcmp (arg
, "e") == 0)
837 target_big_endian
= 0;
838 set_target_endian
= 1;
846 if (strcmp (arg
, "e") == 0)
848 target_big_endian
= 1;
849 set_target_endian
= 1;
857 /* Recognize -K PIC. */
858 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
861 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
869 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
871 if (strcmp (arg
, "64") == 0)
876 as_fatal (_("%s unsupported"), "-a64");
879 else if (strcmp (arg
, "32") == 0)
886 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
888 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
889 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
890 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
891 else if (strcmp (arg
, "pwr") == 0)
892 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
893 /* -m601 means to assemble for the PowerPC 601, which includes
894 instructions that are holdovers from the Power. */
895 else if (strcmp (arg
, "601") == 0)
896 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
897 | PPC_OPCODE_601
| PPC_OPCODE_32
);
898 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
900 else if (strcmp (arg
, "ppc") == 0
901 || strcmp (arg
, "ppc32") == 0
902 || strcmp (arg
, "603") == 0
903 || strcmp (arg
, "604") == 0)
904 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
905 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
906 else if (strcmp (arg
, "403") == 0
907 || strcmp (arg
, "405") == 0)
908 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
909 | PPC_OPCODE_403
| PPC_OPCODE_32
);
910 else if (strcmp (arg
, "7400") == 0
911 || strcmp (arg
, "7410") == 0
912 || strcmp (arg
, "7450") == 0
913 || strcmp (arg
, "7455") == 0)
914 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
);
916 else if (strcmp (arg
, "altivec") == 0)
919 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
921 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
923 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
925 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
926 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
927 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
930 else if (strcmp (arg
, "spe") == 0)
933 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
935 ppc_cpu
|= PPC_OPCODE_SPE
;
937 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
939 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
941 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
943 else if (strcmp (arg
, "ppc64bridge") == 0)
945 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
946 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
948 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
949 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
951 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
953 /* -mbooke64 means enable 64-bit BookE support. */
954 else if (strcmp (arg
, "booke64") == 0)
956 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
957 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
959 else if (strcmp (arg
, "power4") == 0)
961 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
962 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
964 /* -mcom means assemble for the common intersection between Power
965 and PowerPC. At present, we just allow the union, rather
966 than the intersection. */
967 else if (strcmp (arg
, "com") == 0)
968 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
969 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
970 else if (strcmp (arg
, "any") == 0)
971 ppc_cpu
= PPC_OPCODE_ANY
| PPC_OPCODE_32
;
973 else if (strcmp (arg
, "regnames") == 0)
976 else if (strcmp (arg
, "no-regnames") == 0)
980 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
981 that require relocation. */
982 else if (strcmp (arg
, "relocatable") == 0)
984 shlib
= SHLIB_MRELOCATABLE
;
985 ppc_flags
|= EF_PPC_RELOCATABLE
;
988 else if (strcmp (arg
, "relocatable-lib") == 0)
990 shlib
= SHLIB_MRELOCATABLE
;
991 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
994 /* -memb, set embedded bit. */
995 else if (strcmp (arg
, "emb") == 0)
996 ppc_flags
|= EF_PPC_EMB
;
998 /* -mlittle/-mbig set the endianess. */
999 else if (strcmp (arg
, "little") == 0
1000 || strcmp (arg
, "little-endian") == 0)
1002 target_big_endian
= 0;
1003 set_target_endian
= 1;
1006 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1008 target_big_endian
= 1;
1009 set_target_endian
= 1;
1012 else if (strcmp (arg
, "solaris") == 0)
1015 ppc_comment_chars
= ppc_solaris_comment_chars
;
1018 else if (strcmp (arg
, "no-solaris") == 0)
1021 ppc_comment_chars
= ppc_eabi_comment_chars
;
1026 as_bad (_("invalid switch -m%s"), arg
);
1032 /* -V: SVR4 argument to print version ID. */
1034 print_version_id ();
1037 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1038 should be emitted or not. FIXME: Not implemented. */
1042 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1043 rather than .stabs.excl, which is ignored by the linker.
1044 FIXME: Not implemented. */
1060 md_show_usage (stream
)
1063 fprintf (stream
, _("\
1065 -a32 generate ELF32/XCOFF32\n\
1066 -a64 generate ELF64/XCOFF64\n\
1068 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1069 -mpwr generate code for POWER (RIOS1)\n\
1070 -m601 generate code for PowerPC 601\n\
1071 -mppc, -mppc32, -m603, -m604\n\
1072 generate code for PowerPC 603/604\n\
1073 -m403, -m405 generate code for PowerPC 403/405\n\
1074 -m7400, -m7410, -m7450, -m7455\n\
1075 generate code For PowerPC 7400/7410/7450/7455\n"));
1076 fprintf (stream
, _("\
1077 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1078 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1079 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1080 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1081 -mpower4 generate code for Power4 architecture\n\
1082 -mcom generate code Power/PowerPC common instructions\n\
1083 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1084 fprintf (stream
, _("\
1085 -maltivec generate code for AltiVec\n\
1086 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1087 -mspe generate code for Motorola SPE instructions\n\
1088 -mregnames Allow symbolic names for registers\n\
1089 -mno-regnames Do not allow symbolic names for registers\n"));
1091 fprintf (stream
, _("\
1092 -mrelocatable support for GCC's -mrelocatble option\n\
1093 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1094 -memb set PPC_EMB bit in ELF flags\n\
1095 -mlittle, -mlittle-endian, -l, -le\n\
1096 generate code for a little endian machine\n\
1097 -mbig, -mbig-endian, -b, -be\n\
1098 generate code for a big endian machine\n\
1099 -msolaris generate code for Solaris\n\
1100 -mno-solaris do not generate code for Solaris\n\
1101 -V print assembler version number\n\
1102 -Qy, -Qn ignored\n"));
1106 /* Set ppc_cpu if it is not already set. */
1111 const char *default_os
= TARGET_OS
;
1112 const char *default_cpu
= TARGET_CPU
;
1117 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1118 else if (strncmp (default_os
, "aix", 3) == 0
1119 && default_os
[3] >= '4' && default_os
[3] <= '9')
1120 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1121 else if (strncmp (default_os
, "aix3", 4) == 0)
1122 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1123 else if (strcmp (default_cpu
, "rs6000") == 0)
1124 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1125 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1127 if (default_cpu
[7] == '6' && default_cpu
[8] == '4')
1128 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1130 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1133 as_fatal (_("Unknown default cpu = %s, os = %s"),
1134 default_cpu
, default_os
);
1138 /* Figure out the BFD architecture to use. */
1140 enum bfd_architecture
1143 const char *default_cpu
= TARGET_CPU
;
1146 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1147 return bfd_arch_powerpc
;
1148 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1149 return bfd_arch_rs6000
;
1150 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1152 if (strcmp (default_cpu
, "rs6000") == 0)
1153 return bfd_arch_rs6000
;
1154 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1155 return bfd_arch_powerpc
;
1158 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1159 return bfd_arch_unknown
;
1166 return bfd_mach_ppc64
;
1167 else if (ppc_arch () == bfd_arch_rs6000
)
1168 return bfd_mach_rs6k
;
1170 return bfd_mach_ppc
;
1174 ppc_target_format ()
1178 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1180 return "xcoff-powermac";
1183 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1185 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1190 return (target_big_endian
1191 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1192 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1196 /* This function is called when the assembler starts up. It is called
1197 after the options have been parsed and the output file has been
1203 register const struct powerpc_opcode
*op
;
1204 const struct powerpc_opcode
*op_end
;
1205 const struct powerpc_macro
*macro
;
1206 const struct powerpc_macro
*macro_end
;
1207 bfd_boolean dup_insn
= FALSE
;
1212 /* Set the ELF flags if desired. */
1213 if (ppc_flags
&& !msolaris
)
1214 bfd_set_private_flags (stdoutput
, ppc_flags
);
1217 /* Insert the opcodes into a hash table. */
1218 ppc_hash
= hash_new ();
1220 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1221 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1223 know ((op
->opcode
& op
->mask
) == op
->opcode
);
1225 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1226 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1227 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1228 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1229 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1230 /* Certain instructions (eg: extsw) do not exist in the
1231 32-bit BookE instruction set, but they do exist in the
1232 64-bit BookE instruction set, and other PPC instruction
1233 sets. Check to see if the opcode has the BOOKE64 flag set.
1234 If it does make sure that the target CPU is not the BookE32. */
1235 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1236 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1237 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1238 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1239 || ((op
->flags
& PPC_OPCODE_POWER4
)
1240 == (ppc_cpu
& PPC_OPCODE_POWER4
))))
1244 retval
= hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1245 if (retval
!= (const char *) NULL
)
1247 /* Ignore Power duplicates for -m601. */
1248 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1249 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1252 as_bad (_("Internal assembler error for instruction %s"),
1259 /* Insert the macros into a hash table. */
1260 ppc_macro_hash
= hash_new ();
1262 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1263 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1265 if ((macro
->flags
& ppc_cpu
) != 0)
1269 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (PTR
) macro
);
1270 if (retval
!= (const char *) NULL
)
1272 as_bad (_("Internal assembler error for macro %s"), macro
->name
);
1281 /* Tell the main code what the endianness is if it is not overidden
1283 if (!set_target_endian
)
1285 set_target_endian
= 1;
1286 target_big_endian
= PPC_BIG_ENDIAN
;
1290 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1292 /* Create dummy symbols to serve as initial csects. This forces the
1293 text csects to precede the data csects. These symbols will not
1295 ppc_text_csects
= symbol_make ("dummy\001");
1296 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1297 ppc_data_csects
= symbol_make ("dummy\001");
1298 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1303 ppc_current_section
= text_section
;
1304 ppc_previous_section
= 0;
1313 if (ppc_apuinfo_list
== NULL
)
1316 /* Ok, so write the section info out. We have this layout:
1320 0 8 length of "APUinfo\0"
1321 4 (n*4) number of APU's (4 bytes each)
1324 20 APU#1 first APU's info
1325 24 APU#2 second APU's info
1330 asection
*seg
= now_seg
;
1331 subsegT subseg
= now_subseg
;
1332 asection
*apuinfo_secp
= (asection
*) NULL
;
1335 /* Create the .PPC.EMB.apuinfo section. */
1336 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1337 bfd_set_section_flags (stdoutput
,
1339 SEC_HAS_CONTENTS
| SEC_READONLY
);
1342 md_number_to_chars (p
, (valueT
) 8, 4);
1345 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1348 md_number_to_chars (p
, (valueT
) 2, 4);
1351 strcpy (p
, "APUinfo");
1353 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1356 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1359 frag_align (2, 0, 0);
1361 /* We probably can't restore the current segment, for there likely
1364 subseg_set (seg
, subseg
);
1369 /* Insert an operand value into an instruction. */
1371 static unsigned long
1372 ppc_insert_operand (insn
, operand
, val
, file
, line
)
1374 const struct powerpc_operand
*operand
;
1379 if (operand
->bits
!= 32)
1384 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1386 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1387 max
= (1 << operand
->bits
) - 1;
1389 max
= (1 << (operand
->bits
- 1)) - 1;
1390 min
= - (1 << (operand
->bits
- 1));
1394 /* Some people write 32 bit hex constants with the sign
1395 extension done by hand. This shouldn't really be
1396 valid, but, to permit this code to assemble on a 64
1397 bit host, we sign extend the 32 bit value. */
1399 && (val
& (offsetT
) 0x80000000) != 0
1400 && (val
& (offsetT
) 0xffffffff) == val
)
1409 max
= (1 << operand
->bits
) - 1;
1413 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1418 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
1421 _("operand out of range (%s not between %ld and %ld)");
1424 sprint_value (buf
, test
);
1425 as_bad_where (file
, line
, err
, buf
, min
, max
);
1429 if (operand
->insert
)
1434 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1435 if (errmsg
!= (const char *) NULL
)
1436 as_bad_where (file
, line
, errmsg
);
1439 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1447 /* Parse @got, etc. and return the desired relocation. */
1448 static bfd_reloc_code_real_type
1449 ppc_elf_suffix (str_p
, exp_p
)
1464 const struct map_bfd
*ptr
;
1466 #define MAP(str,reloc) { str, sizeof (str)-1, reloc }
1468 static const struct map_bfd mapping
[] = {
1469 MAP ("l", (int) BFD_RELOC_LO16
),
1470 MAP ("h", (int) BFD_RELOC_HI16
),
1471 MAP ("ha", (int) BFD_RELOC_HI16_S
),
1472 MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN
),
1473 MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN
),
1474 MAP ("got", (int) BFD_RELOC_16_GOTOFF
),
1475 MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF
),
1476 MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF
),
1477 MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF
),
1478 MAP ("fixup", (int) BFD_RELOC_CTOR
),
1479 MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL
),
1480 MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL
),
1481 MAP ("copy", (int) BFD_RELOC_PPC_COPY
),
1482 MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT
),
1483 MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC
),
1484 MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC
),
1485 MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL
),
1486 MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF
),
1487 MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF
),
1488 MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF
),
1489 MAP ("sdarel", (int) BFD_RELOC_GPREL16
),
1490 MAP ("sectoff", (int) BFD_RELOC_16_BASEREL
),
1491 MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL
),
1492 MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL
),
1493 MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL
),
1494 MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32
),
1495 MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16
),
1496 MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO
),
1497 MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI
),
1498 MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA
),
1499 MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16
),
1500 MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL
),
1501 MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16
),
1502 MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21
),
1503 MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF
),
1504 MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16
),
1505 MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO
),
1506 MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI
),
1507 MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA
),
1508 MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD
),
1509 MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA
),
1510 MAP ("xgot", (int) BFD_RELOC_PPC_TOC16
),
1511 MAP ("tls", (int) BFD_RELOC_PPC_TLS
),
1512 MAP ("dtpmod", (int) BFD_RELOC_PPC_DTPMOD
),
1513 MAP ("dtprel", (int) BFD_RELOC_PPC_DTPREL
),
1514 MAP ("dtprel@l", (int) BFD_RELOC_PPC_DTPREL16_LO
),
1515 MAP ("dtprel@h", (int) BFD_RELOC_PPC_DTPREL16_HI
),
1516 MAP ("dtprel@ha", (int) BFD_RELOC_PPC_DTPREL16_HA
),
1517 MAP ("tprel", (int) BFD_RELOC_PPC_TPREL
),
1518 MAP ("tprel@l", (int) BFD_RELOC_PPC_TPREL16_LO
),
1519 MAP ("tprel@h", (int) BFD_RELOC_PPC_TPREL16_HI
),
1520 MAP ("tprel@ha", (int) BFD_RELOC_PPC_TPREL16_HA
),
1521 MAP ("got@tlsgd", (int) BFD_RELOC_PPC_GOT_TLSGD16
),
1522 MAP ("got@tlsgd@l", (int) BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1523 MAP ("got@tlsgd@h", (int) BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1524 MAP ("got@tlsgd@ha", (int) BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1525 MAP ("got@tlsld", (int) BFD_RELOC_PPC_GOT_TLSLD16
),
1526 MAP ("got@tlsld@l", (int) BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1527 MAP ("got@tlsld@h", (int) BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1528 MAP ("got@tlsld@ha", (int) BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1529 MAP ("got@dtprel", (int) BFD_RELOC_PPC_GOT_DTPREL16
),
1530 MAP ("got@dtprel@l", (int) BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1531 MAP ("got@dtprel@h", (int) BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1532 MAP ("got@dtprel@ha", (int) BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1533 MAP ("got@tprel", (int) BFD_RELOC_PPC_GOT_TPREL16
),
1534 MAP ("got@tprel@l", (int) BFD_RELOC_PPC_GOT_TPREL16_LO
),
1535 MAP ("got@tprel@h", (int) BFD_RELOC_PPC_GOT_TPREL16_HI
),
1536 MAP ("got@tprel@ha", (int) BFD_RELOC_PPC_GOT_TPREL16_HA
),
1537 /* The following are only valid for ppc64. Negative values are
1538 used instead of a flag. */
1539 MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER
),
1540 MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S
),
1541 MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST
),
1542 MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S
),
1543 MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC
),
1544 MAP ("toc", - (int) BFD_RELOC_PPC_TOC16
),
1545 MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO
),
1546 MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI
),
1547 MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA
),
1548 MAP ("dtprel@higher", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1549 MAP ("dtprel@highera", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1550 MAP ("dtprel@highest", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1551 MAP ("dtprel@highesta", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1552 MAP ("tprel@higher", - (int) BFD_RELOC_PPC64_TPREL16_HIGHER
),
1553 MAP ("tprel@highera", - (int) BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1554 MAP ("tprel@highest", - (int) BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1555 MAP ("tprel@highesta", - (int) BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1556 { (char *) 0, 0, (int) BFD_RELOC_UNUSED
}
1560 return BFD_RELOC_UNUSED
;
1562 for (ch
= *str
, str2
= ident
;
1563 (str2
< ident
+ sizeof (ident
) - 1
1564 && (ISALNUM (ch
) || ch
== '@'));
1567 *str2
++ = TOLOWER (ch
);
1574 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1575 if (ch
== ptr
->string
[0]
1576 && len
== ptr
->length
1577 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0)
1579 int reloc
= ptr
->reloc
;
1584 return BFD_RELOC_UNUSED
;
1589 if (exp_p
->X_add_number
!= 0
1590 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1591 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1592 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1593 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1594 as_warn (_("identifier+constant@got means identifier@got+constant"));
1596 /* Now check for identifier@suffix+constant. */
1597 if (*str
== '-' || *str
== '+')
1599 char *orig_line
= input_line_pointer
;
1600 expressionS new_exp
;
1602 input_line_pointer
= str
;
1603 expression (&new_exp
);
1604 if (new_exp
.X_op
== O_constant
)
1606 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1607 str
= input_line_pointer
;
1610 if (&input_line_pointer
!= str_p
)
1611 input_line_pointer
= orig_line
;
1615 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1616 && exp_p
->X_op
== O_symbol
1617 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1619 /* Change the symbol so that the dummy .TOC. symbol can be
1620 omitted from the object file. */
1621 exp_p
->X_add_symbol
= &abs_symbol
;
1624 return (bfd_reloc_code_real_type
) reloc
;
1627 return BFD_RELOC_UNUSED
;
1630 /* Like normal .long/.short/.word, except support @got, etc.
1631 Clobbers input_line_pointer, checks end-of-line. */
1633 ppc_elf_cons (nbytes
)
1634 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1637 bfd_reloc_code_real_type reloc
;
1639 if (is_it_end_of_statement ())
1641 demand_empty_rest_of_line ();
1648 if (exp
.X_op
== O_symbol
1649 && *input_line_pointer
== '@'
1650 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1651 &exp
)) != BFD_RELOC_UNUSED
)
1653 reloc_howto_type
*reloc_howto
;
1656 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1657 size
= bfd_get_reloc_size (reloc_howto
);
1661 as_bad (_("%s relocations do not fit in %d bytes\n"),
1662 reloc_howto
->name
, nbytes
);
1669 p
= frag_more (nbytes
);
1671 if (target_big_endian
)
1672 offset
= nbytes
- size
;
1673 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1678 emit_expr (&exp
, (unsigned int) nbytes
);
1680 while (*input_line_pointer
++ == ',');
1682 /* Put terminator back into stream. */
1683 input_line_pointer
--;
1684 demand_empty_rest_of_line ();
1687 /* Solaris pseduo op to change to the .rodata section. */
1692 char *save_line
= input_line_pointer
;
1693 static char section
[] = ".rodata\n";
1695 /* Just pretend this is .section .rodata */
1696 input_line_pointer
= section
;
1697 obj_elf_section (xxx
);
1699 input_line_pointer
= save_line
;
1702 /* Pseudo op to make file scope bss items. */
1705 int xxx ATTRIBUTE_UNUSED
;
1707 register char *name
;
1711 register symbolS
*symbolP
;
1718 name
= input_line_pointer
;
1719 c
= get_symbol_end ();
1721 /* just after name is now '\0'. */
1722 p
= input_line_pointer
;
1725 if (*input_line_pointer
!= ',')
1727 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1728 ignore_rest_of_line ();
1732 input_line_pointer
++; /* skip ',' */
1733 if ((size
= get_absolute_expression ()) < 0)
1735 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1736 ignore_rest_of_line ();
1740 /* The third argument to .lcomm is the alignment. */
1741 if (*input_line_pointer
!= ',')
1745 ++input_line_pointer
;
1746 align
= get_absolute_expression ();
1749 as_warn (_("ignoring bad alignment"));
1755 symbolP
= symbol_find_or_make (name
);
1758 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1760 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1761 S_GET_NAME (symbolP
));
1762 ignore_rest_of_line ();
1766 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1768 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1769 S_GET_NAME (symbolP
),
1770 (long) S_GET_VALUE (symbolP
),
1773 ignore_rest_of_line ();
1779 old_subsec
= now_subseg
;
1782 /* Convert to a power of 2 alignment. */
1783 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1786 as_bad (_("Common alignment not a power of 2"));
1787 ignore_rest_of_line ();
1794 record_alignment (bss_section
, align2
);
1795 subseg_set (bss_section
, 0);
1797 frag_align (align2
, 0, 0);
1798 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1799 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1800 symbol_set_frag (symbolP
, frag_now
);
1801 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1804 S_SET_SIZE (symbolP
, size
);
1805 S_SET_SEGMENT (symbolP
, bss_section
);
1806 subseg_set (old_sec
, old_subsec
);
1807 demand_empty_rest_of_line ();
1810 /* Validate any relocations emitted for -mrelocatable, possibly adding
1811 fixups for word relocations in writable segments, so we can adjust
1814 ppc_elf_validate_fix (fixp
, seg
)
1818 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1827 case SHLIB_MRELOCATABLE
:
1828 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1829 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1830 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1831 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1832 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1833 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1834 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1835 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1836 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1837 && (seg
->flags
& SEC_LOAD
) != 0
1838 && strcmp (segment_name (seg
), ".got2") != 0
1839 && strcmp (segment_name (seg
), ".dtors") != 0
1840 && strcmp (segment_name (seg
), ".ctors") != 0
1841 && strcmp (segment_name (seg
), ".fixup") != 0
1842 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1843 && strcmp (segment_name (seg
), ".eh_frame") != 0
1844 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1846 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1847 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1849 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1850 _("Relocation cannot be done when using -mrelocatable"));
1857 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1858 function descriptor sym if the corresponding code sym is used. */
1861 ppc_frob_file_before_adjust ()
1868 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1875 name
= S_GET_NAME (symp
);
1879 if (! S_IS_WEAK (symp
)
1880 || S_IS_DEFINED (symp
))
1883 len
= strlen (name
) + 1;
1884 dotname
= xmalloc (len
+ 1);
1886 memcpy (dotname
+ 1, name
, len
);
1887 dotsym
= symbol_find (dotname
);
1889 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1890 || symbol_used_in_reloc_p (dotsym
)))
1892 symbol_mark_used (symp
);
1896 /* Don't emit .TOC. symbol. */
1897 symp
= symbol_find (".TOC.");
1899 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1901 #endif /* OBJ_ELF */
1906 * Summary of parse_toc_entry.
1908 * in: Input_line_pointer points to the '[' in one of:
1910 * [toc] [tocv] [toc32] [toc64]
1912 * Anything else is an error of one kind or another.
1915 * return value: success or failure
1916 * toc_kind: kind of toc reference
1917 * input_line_pointer:
1918 * success: first char after the ']'
1919 * failure: unchanged
1923 * [toc] - rv == success, toc_kind = default_toc
1924 * [tocv] - rv == success, toc_kind = data_in_toc
1925 * [toc32] - rv == success, toc_kind = must_be_32
1926 * [toc64] - rv == success, toc_kind = must_be_64
1930 enum toc_size_qualifier
1932 default_toc
, /* The toc cell constructed should be the system default size */
1933 data_in_toc
, /* This is a direct reference to a toc cell */
1934 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1935 must_be_64
/* The toc cell constructed must be 64 bits wide */
1939 parse_toc_entry (toc_kind
)
1940 enum toc_size_qualifier
*toc_kind
;
1945 enum toc_size_qualifier t
;
1947 /* Save the input_line_pointer. */
1948 start
= input_line_pointer
;
1950 /* Skip over the '[' , and whitespace. */
1951 ++input_line_pointer
;
1954 /* Find the spelling of the operand. */
1955 toc_spec
= input_line_pointer
;
1956 c
= get_symbol_end ();
1958 if (strcmp (toc_spec
, "toc") == 0)
1962 else if (strcmp (toc_spec
, "tocv") == 0)
1966 else if (strcmp (toc_spec
, "toc32") == 0)
1970 else if (strcmp (toc_spec
, "toc64") == 0)
1976 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
1977 *input_line_pointer
= c
;
1978 input_line_pointer
= start
;
1982 /* Now find the ']'. */
1983 *input_line_pointer
= c
;
1985 SKIP_WHITESPACE (); /* leading whitespace could be there. */
1986 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
1990 as_bad (_("syntax error: expected `]', found `%c'"), c
);
1991 input_line_pointer
= start
;
2002 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2004 ppc_apuinfo_section_add (apu
, version
)
2005 unsigned int apu
, version
;
2009 /* Check we don't already exist. */
2010 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2011 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2014 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2016 if (ppc_apuinfo_num_alloc
== 0)
2018 ppc_apuinfo_num_alloc
= 4;
2019 ppc_apuinfo_list
= (unsigned long *)
2020 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2024 ppc_apuinfo_num_alloc
+= 4;
2025 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2026 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2029 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2035 /* We need to keep a list of fixups. We can't simply generate them as
2036 we go, because that would require us to first create the frag, and
2037 that would screw up references to ``.''. */
2043 bfd_reloc_code_real_type reloc
;
2046 #define MAX_INSN_FIXUPS (5)
2048 /* This routine is called for each instruction to be assembled. */
2055 const struct powerpc_opcode
*opcode
;
2057 const unsigned char *opindex_ptr
;
2061 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2066 bfd_reloc_code_real_type reloc
;
2069 /* Get the opcode. */
2070 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2075 /* Look up the opcode in the hash table. */
2076 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2077 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2079 const struct powerpc_macro
*macro
;
2081 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2082 if (macro
== (const struct powerpc_macro
*) NULL
)
2083 as_bad (_("Unrecognized opcode: `%s'"), str
);
2085 ppc_macro (s
, macro
);
2090 insn
= opcode
->opcode
;
2093 while (ISSPACE (*str
))
2096 /* PowerPC operands are just expressions. The only real issue is
2097 that a few operand types are optional. All cases which might use
2098 an optional operand separate the operands only with commas (in
2099 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
2100 cases never have optional operands). There is never more than
2101 one optional operand for an instruction. So, before we start
2102 seriously parsing the operands, we check to see if we have an
2103 optional operand, and, if we do, we count the number of commas to
2104 see whether the operand should be omitted. */
2106 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2108 const struct powerpc_operand
*operand
;
2110 operand
= &powerpc_operands
[*opindex_ptr
];
2111 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2113 unsigned int opcount
;
2114 unsigned int num_operands_expected
;
2117 /* There is an optional operand. Count the number of
2118 commas in the input line. */
2125 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2132 /* Compute the number of expected operands.
2133 Do not count fake operands. */
2134 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2135 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2136 ++ num_operands_expected
;
2138 /* If there are fewer operands in the line then are called
2139 for by the instruction, we want to skip the optional
2141 if (opcount
< num_operands_expected
)
2148 /* Gather the operands. */
2152 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2154 const struct powerpc_operand
*operand
;
2160 if (next_opindex
== 0)
2161 operand
= &powerpc_operands
[*opindex_ptr
];
2164 operand
= &powerpc_operands
[next_opindex
];
2169 /* If this is a fake operand, then we do not expect anything
2171 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2173 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2174 if (errmsg
!= (const char *) NULL
)
2179 /* If this is an optional operand, and we are skipping it, just
2181 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2184 if (operand
->insert
)
2186 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2187 if (errmsg
!= (const char *) NULL
)
2190 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2191 next_opindex
= *opindex_ptr
+ 1;
2195 /* Gather the operand. */
2196 hold
= input_line_pointer
;
2197 input_line_pointer
= str
;
2200 if (*input_line_pointer
== '[')
2202 /* We are expecting something like the second argument here:
2204 * lwz r4,[toc].GS.0.static_int(rtoc)
2205 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2206 * The argument following the `]' must be a symbol name, and the
2207 * register must be the toc register: 'rtoc' or '2'
2209 * The effect is to 0 as the displacement field
2210 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2211 * the appropriate variation) reloc against it based on the symbol.
2212 * The linker will build the toc, and insert the resolved toc offset.
2215 * o The size of the toc entry is currently assumed to be
2216 * 32 bits. This should not be assumed to be a hard coded
2218 * o In an effort to cope with a change from 32 to 64 bits,
2219 * there are also toc entries that are specified to be
2220 * either 32 or 64 bits:
2221 * lwz r4,[toc32].GS.0.static_int(rtoc)
2222 * lwz r4,[toc64].GS.0.static_int(rtoc)
2223 * These demand toc entries of the specified size, and the
2224 * instruction probably requires it.
2228 enum toc_size_qualifier toc_kind
;
2229 bfd_reloc_code_real_type toc_reloc
;
2231 /* Go parse off the [tocXX] part. */
2232 valid_toc
= parse_toc_entry (&toc_kind
);
2236 /* Note: message has already been issued.
2237 FIXME: what sort of recovery should we do?
2238 demand_rest_of_line (); return; ? */
2241 /* Now get the symbol following the ']'. */
2247 /* In this case, we may not have seen the symbol yet,
2248 since it is allowed to appear on a .extern or .globl
2249 or just be a label in the .data section. */
2250 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2253 /* 1. The symbol must be defined and either in the toc
2254 section, or a global.
2255 2. The reloc generated must have the TOCDEFN flag set
2256 in upper bit mess of the reloc type.
2257 FIXME: It's a little confusing what the tocv
2258 qualifier can be used for. At the very least, I've
2259 seen three uses, only one of which I'm sure I can
2261 if (ex
.X_op
== O_symbol
)
2263 assert (ex
.X_add_symbol
!= NULL
);
2264 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2267 as_bad (_("[tocv] symbol is not a toc symbol"));
2271 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2274 /* FIXME: these next two specifically specify 32/64 bit
2275 toc entries. We don't support them today. Is this
2276 the right way to say that? */
2277 toc_reloc
= BFD_RELOC_UNUSED
;
2278 as_bad (_("Unimplemented toc32 expression modifier"));
2281 /* FIXME: see above. */
2282 toc_reloc
= BFD_RELOC_UNUSED
;
2283 as_bad (_("Unimplemented toc64 expression modifier"));
2287 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2293 /* We need to generate a fixup for this expression. */
2294 if (fc
>= MAX_INSN_FIXUPS
)
2295 as_fatal (_("too many fixups"));
2297 fixups
[fc
].reloc
= toc_reloc
;
2298 fixups
[fc
].exp
= ex
;
2299 fixups
[fc
].opindex
= *opindex_ptr
;
2302 /* Ok. We've set up the fixup for the instruction. Now make it
2303 look like the constant 0 was found here. */
2305 ex
.X_op
= O_constant
;
2306 ex
.X_add_number
= 0;
2307 ex
.X_add_symbol
= NULL
;
2308 ex
.X_op_symbol
= NULL
;
2314 if (! register_name (&ex
))
2316 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2323 str
= input_line_pointer
;
2324 input_line_pointer
= hold
;
2326 if (ex
.X_op
== O_illegal
)
2327 as_bad (_("illegal operand"));
2328 else if (ex
.X_op
== O_absent
)
2329 as_bad (_("missing operand"));
2330 else if (ex
.X_op
== O_register
)
2332 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2335 else if (ex
.X_op
== O_constant
)
2338 /* Allow @HA, @L, @H on constants. */
2339 char *orig_str
= str
;
2341 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2348 case BFD_RELOC_LO16
:
2349 /* X_unsigned is the default, so if the user has done
2350 something which cleared it, we always produce a
2352 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2353 ex
.X_add_number
&= 0xffff;
2355 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2358 case BFD_RELOC_HI16
:
2359 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2360 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2362 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2365 case BFD_RELOC_HI16_S
:
2366 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2367 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2369 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2372 case BFD_RELOC_PPC64_HIGHER
:
2373 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2374 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2376 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2379 case BFD_RELOC_PPC64_HIGHER_S
:
2380 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2381 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2383 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2386 case BFD_RELOC_PPC64_HIGHEST
:
2387 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2388 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2390 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2393 case BFD_RELOC_PPC64_HIGHEST_S
:
2394 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2395 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2397 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2400 #endif /* OBJ_ELF */
2401 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2405 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2407 /* Some TLS tweaks. */
2412 case BFD_RELOC_PPC_TLS
:
2413 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2416 /* We'll only use the 32 (or 64) bit form of these relocations
2417 in constants. Instructions get the 16 bit form. */
2418 case BFD_RELOC_PPC_DTPREL
:
2419 reloc
= BFD_RELOC_PPC_DTPREL16
;
2421 case BFD_RELOC_PPC_TPREL
:
2422 reloc
= BFD_RELOC_PPC_TPREL16
;
2426 /* For the absolute forms of branches, convert the PC
2427 relative form back into the absolute. */
2428 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2432 case BFD_RELOC_PPC_B26
:
2433 reloc
= BFD_RELOC_PPC_BA26
;
2435 case BFD_RELOC_PPC_B16
:
2436 reloc
= BFD_RELOC_PPC_BA16
;
2438 case BFD_RELOC_PPC_B16_BRTAKEN
:
2439 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2441 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2442 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2450 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2455 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2457 case BFD_RELOC_LO16
:
2458 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2460 case BFD_RELOC_16_GOTOFF
:
2461 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2463 case BFD_RELOC_LO16_GOTOFF
:
2464 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2466 case BFD_RELOC_LO16_PLTOFF
:
2467 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2469 case BFD_RELOC_16_BASEREL
:
2470 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2472 case BFD_RELOC_LO16_BASEREL
:
2473 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2475 case BFD_RELOC_PPC_TOC16
:
2476 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2478 case BFD_RELOC_PPC64_TOC16_LO
:
2479 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2481 case BFD_RELOC_PPC64_PLTGOT16
:
2482 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2484 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2485 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2487 case BFD_RELOC_PPC_DTPREL16
:
2488 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2490 case BFD_RELOC_PPC_DTPREL16_LO
:
2491 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2493 case BFD_RELOC_PPC_TPREL16
:
2494 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2496 case BFD_RELOC_PPC_TPREL16_LO
:
2497 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2499 case BFD_RELOC_PPC_GOT_DTPREL16
:
2500 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2501 case BFD_RELOC_PPC_GOT_TPREL16
:
2502 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2505 as_bad (_("unsupported relocation for DS offset field"));
2510 /* We need to generate a fixup for this expression. */
2511 if (fc
>= MAX_INSN_FIXUPS
)
2512 as_fatal (_("too many fixups"));
2513 fixups
[fc
].exp
= ex
;
2514 fixups
[fc
].opindex
= 0;
2515 fixups
[fc
].reloc
= reloc
;
2518 #endif /* OBJ_ELF */
2522 /* We need to generate a fixup for this expression. */
2523 if (fc
>= MAX_INSN_FIXUPS
)
2524 as_fatal (_("too many fixups"));
2525 fixups
[fc
].exp
= ex
;
2526 fixups
[fc
].opindex
= *opindex_ptr
;
2527 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2536 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2544 /* The call to expression should have advanced str past any
2547 && (endc
!= ',' || *str
!= '\0'))
2549 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2557 while (ISSPACE (*str
))
2561 as_bad (_("junk at end of line: `%s'"), str
);
2564 /* Do we need/want a APUinfo section? */
2565 if (ppc_cpu
& (PPC_OPCODE_SPE
2566 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2567 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2568 | PPC_OPCODE_RFMCI
))
2570 /* These are all version "1". */
2571 if (opcode
->flags
& PPC_OPCODE_SPE
)
2572 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2573 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2574 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2575 if (opcode
->flags
& PPC_OPCODE_EFS
)
2576 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2577 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2578 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2579 if (opcode
->flags
& PPC_OPCODE_PMR
)
2580 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2581 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2582 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2583 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2584 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2588 /* Write out the instruction. */
2590 md_number_to_chars (f
, insn
, 4);
2593 dwarf2_emit_insn (4);
2596 /* Create any fixups. At this point we do not use a
2597 bfd_reloc_code_real_type, but instead just use the
2598 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2599 handle fixups for any operand type, although that is admittedly
2600 not a very exciting feature. We pick a BFD reloc type in
2602 for (i
= 0; i
< fc
; i
++)
2604 const struct powerpc_operand
*operand
;
2606 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2607 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2609 reloc_howto_type
*reloc_howto
;
2614 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2618 size
= bfd_get_reloc_size (reloc_howto
);
2619 offset
= target_big_endian
? (4 - size
) : 0;
2621 if (size
< 1 || size
> 4)
2624 fixP
= fix_new_exp (frag_now
,
2625 f
- frag_now
->fr_literal
+ offset
,
2628 reloc_howto
->pc_relative
,
2631 /* Turn off complaints that the addend is too large for things like
2633 switch (fixups
[i
].reloc
)
2635 case BFD_RELOC_16_GOTOFF
:
2636 case BFD_RELOC_PPC_TOC16
:
2637 case BFD_RELOC_LO16
:
2638 case BFD_RELOC_HI16
:
2639 case BFD_RELOC_HI16_S
:
2641 case BFD_RELOC_PPC64_HIGHER
:
2642 case BFD_RELOC_PPC64_HIGHER_S
:
2643 case BFD_RELOC_PPC64_HIGHEST
:
2644 case BFD_RELOC_PPC64_HIGHEST_S
:
2646 fixP
->fx_no_overflow
= 1;
2653 fix_new_exp (frag_now
,
2654 f
- frag_now
->fr_literal
,
2657 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2658 ((bfd_reloc_code_real_type
)
2659 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2663 /* Handle a macro. Gather all the operands, transform them as
2664 described by the macro, and call md_assemble recursively. All the
2665 operands are separated by commas; we don't accept parentheses
2666 around operands here. */
2669 ppc_macro (str
, macro
)
2671 const struct powerpc_macro
*macro
;
2682 /* Gather the users operands into the operands array. */
2687 if (count
>= sizeof operands
/ sizeof operands
[0])
2689 operands
[count
++] = s
;
2690 s
= strchr (s
, ',');
2691 if (s
== (char *) NULL
)
2696 if (count
!= macro
->operands
)
2698 as_bad (_("wrong number of operands"));
2702 /* Work out how large the string must be (the size is unbounded
2703 because it includes user input). */
2705 format
= macro
->format
;
2706 while (*format
!= '\0')
2715 arg
= strtol (format
+ 1, &send
, 10);
2716 know (send
!= format
&& arg
>= 0 && arg
< count
);
2717 len
+= strlen (operands
[arg
]);
2722 /* Put the string together. */
2723 complete
= s
= (char *) alloca (len
+ 1);
2724 format
= macro
->format
;
2725 while (*format
!= '\0')
2731 arg
= strtol (format
+ 1, &send
, 10);
2732 strcpy (s
, operands
[arg
]);
2739 /* Assemble the constructed instruction. */
2740 md_assemble (complete
);
2744 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2747 ppc_section_letter (letter
, ptr_msg
)
2754 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2759 ppc_section_word (str
, len
)
2763 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2770 ppc_section_type (str
, len
)
2774 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2781 ppc_section_flags (flags
, attr
, type
)
2786 if (type
== SHT_ORDERED
)
2787 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2789 if (attr
& SHF_EXCLUDE
)
2790 flags
|= SEC_EXCLUDE
;
2794 #endif /* OBJ_ELF */
2797 /* Pseudo-op handling. */
2799 /* The .byte pseudo-op. This is similar to the normal .byte
2800 pseudo-op, but it can also take a single ASCII string. */
2804 int ignore ATTRIBUTE_UNUSED
;
2806 if (*input_line_pointer
!= '\"')
2812 /* Gather characters. A real double quote is doubled. Unusual
2813 characters are not permitted. */
2814 ++input_line_pointer
;
2819 c
= *input_line_pointer
++;
2823 if (*input_line_pointer
!= '\"')
2825 ++input_line_pointer
;
2828 FRAG_APPEND_1_CHAR (c
);
2831 demand_empty_rest_of_line ();
2836 /* XCOFF specific pseudo-op handling. */
2838 /* This is set if we are creating a .stabx symbol, since we don't want
2839 to handle symbol suffixes for such symbols. */
2840 static bfd_boolean ppc_stab_symbol
;
2842 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2843 symbols in the .bss segment as though they were local common
2844 symbols, and uses a different smclas. The native Aix 4.3.3 assember
2845 aligns .comm and .lcomm to 4 bytes. */
2851 asection
*current_seg
= now_seg
;
2852 subsegT current_subseg
= now_subseg
;
2858 symbolS
*lcomm_sym
= NULL
;
2862 name
= input_line_pointer
;
2863 endc
= get_symbol_end ();
2864 end_name
= input_line_pointer
;
2867 if (*input_line_pointer
!= ',')
2869 as_bad (_("missing size"));
2870 ignore_rest_of_line ();
2873 ++input_line_pointer
;
2875 size
= get_absolute_expression ();
2878 as_bad (_("negative size"));
2879 ignore_rest_of_line ();
2885 /* The third argument to .comm is the alignment. */
2886 if (*input_line_pointer
!= ',')
2890 ++input_line_pointer
;
2891 align
= get_absolute_expression ();
2894 as_warn (_("ignoring bad alignment"));
2909 /* The third argument to .lcomm appears to be the real local
2910 common symbol to create. References to the symbol named in
2911 the first argument are turned into references to the third
2913 if (*input_line_pointer
!= ',')
2915 as_bad (_("missing real symbol name"));
2916 ignore_rest_of_line ();
2919 ++input_line_pointer
;
2921 lcomm_name
= input_line_pointer
;
2922 lcomm_endc
= get_symbol_end ();
2924 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2926 *input_line_pointer
= lcomm_endc
;
2930 sym
= symbol_find_or_make (name
);
2933 if (S_IS_DEFINED (sym
)
2934 || S_GET_VALUE (sym
) != 0)
2936 as_bad (_("attempt to redefine symbol"));
2937 ignore_rest_of_line ();
2941 record_alignment (bss_section
, align
);
2944 || ! S_IS_DEFINED (lcomm_sym
))
2953 S_SET_EXTERNAL (sym
);
2957 symbol_get_tc (lcomm_sym
)->output
= 1;
2958 def_sym
= lcomm_sym
;
2962 subseg_set (bss_section
, 1);
2963 frag_align (align
, 0, 0);
2965 symbol_set_frag (def_sym
, frag_now
);
2966 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
2967 def_size
, (char *) NULL
);
2969 S_SET_SEGMENT (def_sym
, bss_section
);
2970 symbol_get_tc (def_sym
)->align
= align
;
2974 /* Align the size of lcomm_sym. */
2975 symbol_get_frag (lcomm_sym
)->fr_offset
=
2976 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
2977 &~ ((1 << align
) - 1));
2978 if (align
> symbol_get_tc (lcomm_sym
)->align
)
2979 symbol_get_tc (lcomm_sym
)->align
= align
;
2984 /* Make sym an offset from lcomm_sym. */
2985 S_SET_SEGMENT (sym
, bss_section
);
2986 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
2987 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
2988 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
2991 subseg_set (current_seg
, current_subseg
);
2993 demand_empty_rest_of_line ();
2996 /* The .csect pseudo-op. This switches us into a different
2997 subsegment. The first argument is a symbol whose value is the
2998 start of the .csect. In COFF, csect symbols get special aux
2999 entries defined by the x_csect field of union internal_auxent. The
3000 optional second argument is the alignment (the default is 2). */
3004 int ignore ATTRIBUTE_UNUSED
;
3011 name
= input_line_pointer
;
3012 endc
= get_symbol_end ();
3014 sym
= symbol_find_or_make (name
);
3016 *input_line_pointer
= endc
;
3018 if (S_GET_NAME (sym
)[0] == '\0')
3020 /* An unnamed csect is assumed to be [PR]. */
3021 symbol_get_tc (sym
)->class = XMC_PR
;
3025 if (*input_line_pointer
== ',')
3027 ++input_line_pointer
;
3028 align
= get_absolute_expression ();
3031 ppc_change_csect (sym
, align
);
3033 demand_empty_rest_of_line ();
3036 /* Change to a different csect. */
3039 ppc_change_csect (sym
, align
)
3043 if (S_IS_DEFINED (sym
))
3044 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3054 /* This is a new csect. We need to look at the symbol class to
3055 figure out whether it should go in the text section or the
3059 switch (symbol_get_tc (sym
)->class)
3069 S_SET_SEGMENT (sym
, text_section
);
3070 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3071 ++ppc_text_subsegment
;
3072 list_ptr
= &ppc_text_csects
;
3082 if (ppc_toc_csect
!= NULL
3083 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3084 == ppc_data_subsegment
))
3086 S_SET_SEGMENT (sym
, data_section
);
3087 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3088 ++ppc_data_subsegment
;
3089 list_ptr
= &ppc_data_csects
;
3095 /* We set the obstack chunk size to a small value before
3096 changing subsegments, so that we don't use a lot of memory
3097 space for what may be a small section. */
3098 hold_chunksize
= chunksize
;
3101 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3102 symbol_get_tc (sym
)->subseg
);
3104 chunksize
= hold_chunksize
;
3107 ppc_after_toc_frag
= frag_now
;
3109 record_alignment (sec
, align
);
3111 frag_align_code (align
, 0);
3113 frag_align (align
, 0, 0);
3115 symbol_set_frag (sym
, frag_now
);
3116 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3118 symbol_get_tc (sym
)->align
= align
;
3119 symbol_get_tc (sym
)->output
= 1;
3120 symbol_get_tc (sym
)->within
= sym
;
3122 for (list
= *list_ptr
;
3123 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3124 list
= symbol_get_tc (list
)->next
)
3126 symbol_get_tc (list
)->next
= sym
;
3128 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3129 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3133 ppc_current_csect
= sym
;
3136 /* This function handles the .text and .data pseudo-ops. These
3137 pseudo-ops aren't really used by XCOFF; we implement them for the
3138 convenience of people who aren't used to XCOFF. */
3149 else if (type
== 'd')
3154 sym
= symbol_find_or_make (name
);
3156 ppc_change_csect (sym
, 2);
3158 demand_empty_rest_of_line ();
3161 /* This function handles the .section pseudo-op. This is mostly to
3162 give an error, since XCOFF only supports .text, .data and .bss, but
3163 we do permit the user to name the text or data section. */
3166 ppc_named_section (ignore
)
3167 int ignore ATTRIBUTE_UNUSED
;
3170 const char *real_name
;
3174 user_name
= input_line_pointer
;
3175 c
= get_symbol_end ();
3177 if (strcmp (user_name
, ".text") == 0)
3178 real_name
= ".text[PR]";
3179 else if (strcmp (user_name
, ".data") == 0)
3180 real_name
= ".data[RW]";
3183 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3184 *input_line_pointer
= c
;
3185 ignore_rest_of_line ();
3189 *input_line_pointer
= c
;
3191 sym
= symbol_find_or_make (real_name
);
3193 ppc_change_csect (sym
, 2);
3195 demand_empty_rest_of_line ();
3198 /* The .extern pseudo-op. We create an undefined symbol. */
3202 int ignore ATTRIBUTE_UNUSED
;
3207 name
= input_line_pointer
;
3208 endc
= get_symbol_end ();
3210 (void) symbol_find_or_make (name
);
3212 *input_line_pointer
= endc
;
3214 demand_empty_rest_of_line ();
3217 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3221 int ignore ATTRIBUTE_UNUSED
;
3227 name
= input_line_pointer
;
3228 endc
= get_symbol_end ();
3230 sym
= symbol_find_or_make (name
);
3232 *input_line_pointer
= endc
;
3234 symbol_get_tc (sym
)->output
= 1;
3236 demand_empty_rest_of_line ();
3239 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3240 although I don't know why it bothers. */
3244 int ignore ATTRIBUTE_UNUSED
;
3251 name
= input_line_pointer
;
3252 endc
= get_symbol_end ();
3254 sym
= symbol_find_or_make (name
);
3256 *input_line_pointer
= endc
;
3258 if (*input_line_pointer
!= ',')
3260 as_bad (_("missing rename string"));
3261 ignore_rest_of_line ();
3264 ++input_line_pointer
;
3266 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3268 demand_empty_rest_of_line ();
3271 /* The .stabx pseudo-op. This is similar to a normal .stabs
3272 pseudo-op, but slightly different. A sample is
3273 .stabx "main:F-1",.main,142,0
3274 The first argument is the symbol name to create. The second is the
3275 value, and the third is the storage class. The fourth seems to be
3276 always zero, and I am assuming it is the type. */
3280 int ignore ATTRIBUTE_UNUSED
;
3287 name
= demand_copy_C_string (&len
);
3289 if (*input_line_pointer
!= ',')
3291 as_bad (_("missing value"));
3294 ++input_line_pointer
;
3296 ppc_stab_symbol
= TRUE
;
3297 sym
= symbol_make (name
);
3298 ppc_stab_symbol
= FALSE
;
3300 symbol_get_tc (sym
)->real_name
= name
;
3302 (void) expression (&exp
);
3309 as_bad (_("illegal .stabx expression; zero assumed"));
3310 exp
.X_add_number
= 0;
3313 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3314 symbol_set_frag (sym
, &zero_address_frag
);
3318 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3319 symbol_set_value_expression (sym
, &exp
);
3323 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3324 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3329 /* The value is some complex expression. This will probably
3330 fail at some later point, but this is probably the right
3331 thing to do here. */
3332 symbol_set_value_expression (sym
, &exp
);
3336 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3337 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3339 if (*input_line_pointer
!= ',')
3341 as_bad (_("missing class"));
3344 ++input_line_pointer
;
3346 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3348 if (*input_line_pointer
!= ',')
3350 as_bad (_("missing type"));
3353 ++input_line_pointer
;
3355 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3357 symbol_get_tc (sym
)->output
= 1;
3359 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3361 symbol_get_tc (sym
)->within
= ppc_current_block
;
3366 .stabx "z",arrays_,133,0
3369 .comm arrays_,13768,3
3371 resolve_symbol_value will copy the exp's "within" into sym's when the
3372 offset is 0. Since this seems to be corner case problem,
3373 only do the correction for storage class C_STSYM. A better solution
3374 would be to have the tc field updated in ppc_symbol_new_hook. */
3376 if (exp
.X_op
== O_symbol
)
3378 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3382 if (exp
.X_op
!= O_symbol
3383 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3384 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3385 ppc_frob_label (sym
);
3388 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3389 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3390 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3391 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3394 demand_empty_rest_of_line ();
3397 /* The .function pseudo-op. This takes several arguments. The first
3398 argument seems to be the external name of the symbol. The second
3399 argment seems to be the label for the start of the function. gcc
3400 uses the same name for both. I have no idea what the third and
3401 fourth arguments are meant to be. The optional fifth argument is
3402 an expression for the size of the function. In COFF this symbol
3403 gets an aux entry like that used for a csect. */
3406 ppc_function (ignore
)
3407 int ignore ATTRIBUTE_UNUSED
;
3415 name
= input_line_pointer
;
3416 endc
= get_symbol_end ();
3418 /* Ignore any [PR] suffix. */
3419 name
= ppc_canonicalize_symbol_name (name
);
3420 s
= strchr (name
, '[');
3421 if (s
!= (char *) NULL
3422 && strcmp (s
+ 1, "PR]") == 0)
3425 ext_sym
= symbol_find_or_make (name
);
3427 *input_line_pointer
= endc
;
3429 if (*input_line_pointer
!= ',')
3431 as_bad (_("missing symbol name"));
3432 ignore_rest_of_line ();
3435 ++input_line_pointer
;
3437 name
= input_line_pointer
;
3438 endc
= get_symbol_end ();
3440 lab_sym
= symbol_find_or_make (name
);
3442 *input_line_pointer
= endc
;
3444 if (ext_sym
!= lab_sym
)
3448 exp
.X_op
= O_symbol
;
3449 exp
.X_add_symbol
= lab_sym
;
3450 exp
.X_op_symbol
= NULL
;
3451 exp
.X_add_number
= 0;
3453 symbol_set_value_expression (ext_sym
, &exp
);
3456 if (symbol_get_tc (ext_sym
)->class == -1)
3457 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3458 symbol_get_tc (ext_sym
)->output
= 1;
3460 if (*input_line_pointer
== ',')
3464 /* Ignore the third argument. */
3465 ++input_line_pointer
;
3466 expression (&ignore
);
3467 if (*input_line_pointer
== ',')
3469 /* Ignore the fourth argument. */
3470 ++input_line_pointer
;
3471 expression (&ignore
);
3472 if (*input_line_pointer
== ',')
3474 /* The fifth argument is the function size. */
3475 ++input_line_pointer
;
3476 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3479 &zero_address_frag
);
3480 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3485 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3486 SF_SET_FUNCTION (ext_sym
);
3487 SF_SET_PROCESS (ext_sym
);
3488 coff_add_linesym (ext_sym
);
3490 demand_empty_rest_of_line ();
3493 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3494 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3495 with the correct line number */
3497 static symbolS
*saved_bi_sym
= 0;
3501 int ignore ATTRIBUTE_UNUSED
;
3505 sym
= symbol_make (".bf");
3506 S_SET_SEGMENT (sym
, text_section
);
3507 symbol_set_frag (sym
, frag_now
);
3508 S_SET_VALUE (sym
, frag_now_fix ());
3509 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3511 coff_line_base
= get_absolute_expression ();
3513 S_SET_NUMBER_AUXILIARY (sym
, 1);
3514 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3516 /* Line number for bi. */
3519 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3524 symbol_get_tc (sym
)->output
= 1;
3526 ppc_frob_label (sym
);
3528 demand_empty_rest_of_line ();
3531 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3532 ".ef", except that the line number is absolute, not relative to the
3533 most recent ".bf" symbol. */
3537 int ignore ATTRIBUTE_UNUSED
;
3541 sym
= symbol_make (".ef");
3542 S_SET_SEGMENT (sym
, text_section
);
3543 symbol_set_frag (sym
, frag_now
);
3544 S_SET_VALUE (sym
, frag_now_fix ());
3545 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3546 S_SET_NUMBER_AUXILIARY (sym
, 1);
3547 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3548 symbol_get_tc (sym
)->output
= 1;
3550 ppc_frob_label (sym
);
3552 demand_empty_rest_of_line ();
3555 /* The .bi and .ei pseudo-ops. These take a string argument and
3556 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3557 the symbol list. The value of .bi will be know when the next .bf
3564 static symbolS
*last_biei
;
3571 name
= demand_copy_C_string (&len
);
3573 /* The value of these symbols is actually file offset. Here we set
3574 the value to the index into the line number entries. In
3575 ppc_frob_symbols we set the fix_line field, which will cause BFD
3576 to do the right thing. */
3578 sym
= symbol_make (name
);
3579 /* obj-coff.c currently only handles line numbers correctly in the
3581 S_SET_SEGMENT (sym
, text_section
);
3582 S_SET_VALUE (sym
, coff_n_line_nos
);
3583 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3585 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3586 symbol_get_tc (sym
)->output
= 1;
3594 for (look
= last_biei
? last_biei
: symbol_rootP
;
3595 (look
!= (symbolS
*) NULL
3596 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3597 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3598 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3599 look
= symbol_next (look
))
3601 if (look
!= (symbolS
*) NULL
)
3603 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3604 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3608 demand_empty_rest_of_line ();
3611 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3612 There is one argument, which is a csect symbol. The value of the
3613 .bs symbol is the index of this csect symbol. */
3617 int ignore ATTRIBUTE_UNUSED
;
3624 if (ppc_current_block
!= NULL
)
3625 as_bad (_("nested .bs blocks"));
3627 name
= input_line_pointer
;
3628 endc
= get_symbol_end ();
3630 csect
= symbol_find_or_make (name
);
3632 *input_line_pointer
= endc
;
3634 sym
= symbol_make (".bs");
3635 S_SET_SEGMENT (sym
, now_seg
);
3636 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3637 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3638 symbol_get_tc (sym
)->output
= 1;
3640 symbol_get_tc (sym
)->within
= csect
;
3642 ppc_frob_label (sym
);
3644 ppc_current_block
= sym
;
3646 demand_empty_rest_of_line ();
3649 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3653 int ignore ATTRIBUTE_UNUSED
;
3657 if (ppc_current_block
== NULL
)
3658 as_bad (_(".es without preceding .bs"));
3660 sym
= symbol_make (".es");
3661 S_SET_SEGMENT (sym
, now_seg
);
3662 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3663 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3664 symbol_get_tc (sym
)->output
= 1;
3666 ppc_frob_label (sym
);
3668 ppc_current_block
= NULL
;
3670 demand_empty_rest_of_line ();
3673 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3678 int ignore ATTRIBUTE_UNUSED
;
3682 sym
= symbol_make (".bb");
3683 S_SET_SEGMENT (sym
, text_section
);
3684 symbol_set_frag (sym
, frag_now
);
3685 S_SET_VALUE (sym
, frag_now_fix ());
3686 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3688 S_SET_NUMBER_AUXILIARY (sym
, 1);
3689 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3691 symbol_get_tc (sym
)->output
= 1;
3693 SF_SET_PROCESS (sym
);
3695 ppc_frob_label (sym
);
3697 demand_empty_rest_of_line ();
3700 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3705 int ignore ATTRIBUTE_UNUSED
;
3709 sym
= symbol_make (".eb");
3710 S_SET_SEGMENT (sym
, text_section
);
3711 symbol_set_frag (sym
, frag_now
);
3712 S_SET_VALUE (sym
, frag_now_fix ());
3713 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3714 S_SET_NUMBER_AUXILIARY (sym
, 1);
3715 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3716 symbol_get_tc (sym
)->output
= 1;
3718 SF_SET_PROCESS (sym
);
3720 ppc_frob_label (sym
);
3722 demand_empty_rest_of_line ();
3725 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3730 int ignore ATTRIBUTE_UNUSED
;
3736 name
= demand_copy_C_string (&len
);
3737 sym
= symbol_make (name
);
3738 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3739 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3740 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3741 S_SET_VALUE (sym
, 0);
3742 symbol_get_tc (sym
)->output
= 1;
3744 ppc_frob_label (sym
);
3746 demand_empty_rest_of_line ();
3749 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3753 int ignore ATTRIBUTE_UNUSED
;
3757 sym
= symbol_make (".ec");
3758 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3759 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3760 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3761 S_SET_VALUE (sym
, 0);
3762 symbol_get_tc (sym
)->output
= 1;
3764 ppc_frob_label (sym
);
3766 demand_empty_rest_of_line ();
3769 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3773 int ignore ATTRIBUTE_UNUSED
;
3775 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3776 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3783 subseg
= ppc_data_subsegment
;
3784 ++ppc_data_subsegment
;
3786 subseg_new (segment_name (data_section
), subseg
);
3787 ppc_toc_frag
= frag_now
;
3789 sym
= symbol_find_or_make ("TOC[TC0]");
3790 symbol_set_frag (sym
, frag_now
);
3791 S_SET_SEGMENT (sym
, data_section
);
3792 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3793 symbol_get_tc (sym
)->subseg
= subseg
;
3794 symbol_get_tc (sym
)->output
= 1;
3795 symbol_get_tc (sym
)->within
= sym
;
3797 ppc_toc_csect
= sym
;
3799 for (list
= ppc_data_csects
;
3800 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3801 list
= symbol_get_tc (list
)->next
)
3803 symbol_get_tc (list
)->next
= sym
;
3805 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3806 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3810 ppc_current_csect
= ppc_toc_csect
;
3812 demand_empty_rest_of_line ();
3815 /* The AIX assembler automatically aligns the operands of a .long or
3816 .short pseudo-op, and we want to be compatible. */
3819 ppc_xcoff_cons (log_size
)
3822 frag_align (log_size
, 0, 0);
3823 record_alignment (now_seg
, log_size
);
3824 cons (1 << log_size
);
3829 int dummy ATTRIBUTE_UNUSED
;
3834 (void) expression (&exp
);
3836 if (exp
.X_op
!= O_constant
)
3838 as_bad (_("non-constant byte count"));
3842 byte_count
= exp
.X_add_number
;
3844 if (*input_line_pointer
!= ',')
3846 as_bad (_("missing value"));
3850 ++input_line_pointer
;
3854 #endif /* OBJ_XCOFF */
3855 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3857 /* The .tc pseudo-op. This is used when generating either XCOFF or
3858 ELF. This takes two or more arguments.
3860 When generating XCOFF output, the first argument is the name to
3861 give to this location in the toc; this will be a symbol with class
3862 TC. The rest of the arguments are N-byte values to actually put at
3863 this location in the TOC; often there is just one more argument, a
3864 relocatable symbol reference. The size of the value to store
3865 depends on target word size. A 32-bit target uses 4-byte values, a
3866 64-bit target uses 8-byte values.
3868 When not generating XCOFF output, the arguments are the same, but
3869 the first argument is simply ignored. */
3873 int ignore ATTRIBUTE_UNUSED
;
3877 /* Define the TOC symbol name. */
3883 if (ppc_toc_csect
== (symbolS
*) NULL
3884 || ppc_toc_csect
!= ppc_current_csect
)
3886 as_bad (_(".tc not in .toc section"));
3887 ignore_rest_of_line ();
3891 name
= input_line_pointer
;
3892 endc
= get_symbol_end ();
3894 sym
= symbol_find_or_make (name
);
3896 *input_line_pointer
= endc
;
3898 if (S_IS_DEFINED (sym
))
3902 label
= symbol_get_tc (ppc_current_csect
)->within
;
3903 if (symbol_get_tc (label
)->class != XMC_TC0
)
3905 as_bad (_(".tc with no label"));
3906 ignore_rest_of_line ();
3910 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3911 symbol_set_frag (label
, symbol_get_frag (sym
));
3912 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3914 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3915 ++input_line_pointer
;
3920 S_SET_SEGMENT (sym
, now_seg
);
3921 symbol_set_frag (sym
, frag_now
);
3922 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3923 symbol_get_tc (sym
)->class = XMC_TC
;
3924 symbol_get_tc (sym
)->output
= 1;
3926 ppc_frob_label (sym
);
3929 #endif /* OBJ_XCOFF */
3933 /* Skip the TOC symbol name. */
3934 while (is_part_of_name (*input_line_pointer
)
3935 || *input_line_pointer
== '['
3936 || *input_line_pointer
== ']'
3937 || *input_line_pointer
== '{'
3938 || *input_line_pointer
== '}')
3939 ++input_line_pointer
;
3941 /* Align to a four/eight byte boundary. */
3942 align
= ppc_obj64
? 3 : 2;
3943 frag_align (align
, 0, 0);
3944 record_alignment (now_seg
, align
);
3945 #endif /* OBJ_ELF */
3947 if (*input_line_pointer
!= ',')
3948 demand_empty_rest_of_line ();
3951 ++input_line_pointer
;
3952 cons (ppc_obj64
? 8 : 4);
3956 /* Pseudo-op .machine. */
3957 /* FIXME: `.machine' is a nop for the moment. It would be nice to
3958 accept this directive on the first line of input and set ppc_obj64
3959 and the target format accordingly. Unfortunately, the target
3960 format is selected in output-file.c:output_file_create before we
3961 even get to md_begin, so it's not possible without changing
3965 ppc_machine (ignore
)
3966 int ignore ATTRIBUTE_UNUSED
;
3968 discard_rest_of_line ();
3971 /* See whether a symbol is in the TOC section. */
3974 ppc_is_toc_sym (sym
)
3978 return symbol_get_tc (sym
)->class == XMC_TC
;
3981 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
3983 return strcmp (sname
, ".toc") == 0;
3985 return strcmp (sname
, ".got") == 0;
3988 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
3992 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
3994 /* Set the current section. */
3996 ppc_set_current_section (new)
3999 ppc_previous_section
= ppc_current_section
;
4000 ppc_current_section
= new;
4003 /* pseudo-op: .previous
4004 behaviour: toggles the current section with the previous section.
4006 warnings: "No previous section" */
4009 ppc_previous (ignore
)
4010 int ignore ATTRIBUTE_UNUSED
;
4014 if (ppc_previous_section
== NULL
)
4016 as_warn (_("No previous section to return to. Directive ignored."));
4020 subseg_set (ppc_previous_section
, 0);
4022 ppc_set_current_section (ppc_previous_section
);
4025 /* pseudo-op: .pdata
4026 behaviour: predefined read only data section
4030 initial: .section .pdata "adr3"
4031 a - don't know -- maybe a misprint
4032 d - initialized data
4034 3 - double word aligned (that would be 4 byte boundary)
4037 Tag index tables (also known as the function table) for exception
4038 handling, debugging, etc. */
4042 int ignore ATTRIBUTE_UNUSED
;
4044 if (pdata_section
== 0)
4046 pdata_section
= subseg_new (".pdata", 0);
4048 bfd_set_section_flags (stdoutput
, pdata_section
,
4049 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4050 | SEC_READONLY
| SEC_DATA
));
4052 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4056 pdata_section
= subseg_new (".pdata", 0);
4058 ppc_set_current_section (pdata_section
);
4061 /* pseudo-op: .ydata
4062 behaviour: predefined read only data section
4066 initial: .section .ydata "drw3"
4067 a - don't know -- maybe a misprint
4068 d - initialized data
4070 3 - double word aligned (that would be 4 byte boundary)
4072 Tag tables (also known as the scope table) for exception handling,
4077 int ignore ATTRIBUTE_UNUSED
;
4079 if (ydata_section
== 0)
4081 ydata_section
= subseg_new (".ydata", 0);
4082 bfd_set_section_flags (stdoutput
, ydata_section
,
4083 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4084 | SEC_READONLY
| SEC_DATA
));
4086 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4090 ydata_section
= subseg_new (".ydata", 0);
4092 ppc_set_current_section (ydata_section
);
4095 /* pseudo-op: .reldata
4096 behaviour: predefined read write data section
4097 double word aligned (4-byte)
4098 FIXME: relocation is applied to it
4099 FIXME: what's the difference between this and .data?
4102 initial: .section .reldata "drw3"
4103 d - initialized data
4106 3 - double word aligned (that would be 8 byte boundary)
4109 Like .data, but intended to hold data subject to relocation, such as
4110 function descriptors, etc. */
4113 ppc_reldata (ignore
)
4114 int ignore ATTRIBUTE_UNUSED
;
4116 if (reldata_section
== 0)
4118 reldata_section
= subseg_new (".reldata", 0);
4120 bfd_set_section_flags (stdoutput
, reldata_section
,
4121 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4124 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4128 reldata_section
= subseg_new (".reldata", 0);
4130 ppc_set_current_section (reldata_section
);
4133 /* pseudo-op: .rdata
4134 behaviour: predefined read only data section
4138 initial: .section .rdata "dr3"
4139 d - initialized data
4141 3 - double word aligned (that would be 4 byte boundary) */
4145 int ignore ATTRIBUTE_UNUSED
;
4147 if (rdata_section
== 0)
4149 rdata_section
= subseg_new (".rdata", 0);
4150 bfd_set_section_flags (stdoutput
, rdata_section
,
4151 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4152 | SEC_READONLY
| SEC_DATA
));
4154 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4158 rdata_section
= subseg_new (".rdata", 0);
4160 ppc_set_current_section (rdata_section
);
4163 /* pseudo-op: .ualong
4164 behaviour: much like .int, with the exception that no alignment is
4166 FIXME: test the alignment statement
4172 int ignore ATTRIBUTE_UNUSED
;
4178 /* pseudo-op: .znop <symbol name>
4179 behaviour: Issue a nop instruction
4180 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4181 the supplied symbol name.
4183 warnings: Missing symbol name */
4187 int ignore ATTRIBUTE_UNUSED
;
4190 const struct powerpc_opcode
*opcode
;
4201 /* Strip out the symbol name. */
4202 symbol_name
= input_line_pointer
;
4203 c
= get_symbol_end ();
4205 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4206 strcpy (name
, symbol_name
);
4208 sym
= symbol_find_or_make (name
);
4210 *input_line_pointer
= c
;
4214 /* Look up the opcode in the hash table. */
4215 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4217 /* Stick in the nop. */
4218 insn
= opcode
->opcode
;
4220 /* Write out the instruction. */
4222 md_number_to_chars (f
, insn
, 4);
4224 f
- frag_now
->fr_literal
,
4229 BFD_RELOC_16_GOT_PCREL
);
4242 register char *name
;
4246 register symbolS
*symbolP
;
4249 name
= input_line_pointer
;
4250 c
= get_symbol_end ();
4252 /* just after name is now '\0'. */
4253 p
= input_line_pointer
;
4256 if (*input_line_pointer
!= ',')
4258 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4259 ignore_rest_of_line ();
4263 input_line_pointer
++; /* skip ',' */
4264 if ((temp
= get_absolute_expression ()) < 0)
4266 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4267 ignore_rest_of_line ();
4273 /* The third argument to .comm is the alignment. */
4274 if (*input_line_pointer
!= ',')
4278 ++input_line_pointer
;
4279 align
= get_absolute_expression ();
4282 as_warn (_("ignoring bad alignment"));
4289 symbolP
= symbol_find_or_make (name
);
4292 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4294 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4295 S_GET_NAME (symbolP
));
4296 ignore_rest_of_line ();
4300 if (S_GET_VALUE (symbolP
))
4302 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4303 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4304 S_GET_NAME (symbolP
),
4305 (long) S_GET_VALUE (symbolP
),
4310 S_SET_VALUE (symbolP
, (valueT
) temp
);
4311 S_SET_EXTERNAL (symbolP
);
4314 demand_empty_rest_of_line ();
4318 * implement the .section pseudo op:
4319 * .section name {, "flags"}
4321 * | +--- optional flags: 'b' for bss
4323 * +-- section name 'l' for lib
4327 * 'd' (apparently m88k for data)
4329 * But if the argument is not a quoted string, treat it as a
4330 * subsegment number.
4332 * FIXME: this is a copy of the section processing from obj-coff.c, with
4333 * additions/changes for the moto-pas assembler support. There are three
4336 * FIXME: I just noticed this. This doesn't work at all really. It it
4337 * setting bits that bfd probably neither understands or uses. The
4338 * correct approach (?) will have to incorporate extra fields attached
4339 * to the section to hold the system specific stuff. (krk)
4342 * 'a' - unknown - referred to in documentation, but no definition supplied
4343 * 'c' - section has code
4344 * 'd' - section has initialized data
4345 * 'u' - section has uninitialized data
4346 * 'i' - section contains directives (info)
4347 * 'n' - section can be discarded
4348 * 'R' - remove section at link time
4350 * Section Protection:
4351 * 'r' - section is readable
4352 * 'w' - section is writeable
4353 * 'x' - section is executable
4354 * 's' - section is sharable
4356 * Section Alignment:
4357 * '0' - align to byte boundary
4358 * '1' - align to halfword undary
4359 * '2' - align to word boundary
4360 * '3' - align to doubleword boundary
4361 * '4' - align to quadword boundary
4362 * '5' - align to 32 byte boundary
4363 * '6' - align to 64 byte boundary
4368 ppc_pe_section (ignore
)
4369 int ignore ATTRIBUTE_UNUSED
;
4371 /* Strip out the section name. */
4380 section_name
= input_line_pointer
;
4381 c
= get_symbol_end ();
4383 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4384 strcpy (name
, section_name
);
4386 *input_line_pointer
= c
;
4391 flags
= SEC_NO_FLAGS
;
4393 if (strcmp (name
, ".idata$2") == 0)
4397 else if (strcmp (name
, ".idata$3") == 0)
4401 else if (strcmp (name
, ".idata$4") == 0)
4405 else if (strcmp (name
, ".idata$5") == 0)
4409 else if (strcmp (name
, ".idata$6") == 0)
4414 /* Default alignment to 16 byte boundary. */
4417 if (*input_line_pointer
== ',')
4419 ++input_line_pointer
;
4421 if (*input_line_pointer
!= '"')
4422 exp
= get_absolute_expression ();
4425 ++input_line_pointer
;
4426 while (*input_line_pointer
!= '"'
4427 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4429 switch (*input_line_pointer
)
4431 /* Section Contents */
4432 case 'a': /* unknown */
4433 as_bad (_("Unsupported section attribute -- 'a'"));
4435 case 'c': /* code section */
4438 case 'd': /* section has initialized data */
4441 case 'u': /* section has uninitialized data */
4442 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4446 case 'i': /* section contains directives (info) */
4447 /* FIXME: This is IMAGE_SCN_LNK_INFO
4449 flags
|= SEC_HAS_CONTENTS
;
4451 case 'n': /* section can be discarded */
4454 case 'R': /* Remove section at link time */
4455 flags
|= SEC_NEVER_LOAD
;
4458 /* Section Protection */
4459 case 'r': /* section is readable */
4460 flags
|= IMAGE_SCN_MEM_READ
;
4462 case 'w': /* section is writeable */
4463 flags
|= IMAGE_SCN_MEM_WRITE
;
4465 case 'x': /* section is executable */
4466 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4468 case 's': /* section is sharable */
4469 flags
|= IMAGE_SCN_MEM_SHARED
;
4472 /* Section Alignment */
4473 case '0': /* align to byte boundary */
4474 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4477 case '1': /* align to halfword boundary */
4478 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4481 case '2': /* align to word boundary */
4482 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4485 case '3': /* align to doubleword boundary */
4486 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4489 case '4': /* align to quadword boundary */
4490 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4493 case '5': /* align to 32 byte boundary */
4494 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4497 case '6': /* align to 64 byte boundary */
4498 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4503 as_bad (_("unknown section attribute '%c'"),
4504 *input_line_pointer
);
4507 ++input_line_pointer
;
4509 if (*input_line_pointer
== '"')
4510 ++input_line_pointer
;
4514 sec
= subseg_new (name
, (subsegT
) exp
);
4516 ppc_set_current_section (sec
);
4518 if (flags
!= SEC_NO_FLAGS
)
4520 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4521 as_bad (_("error setting flags for \"%s\": %s"),
4522 bfd_section_name (stdoutput
, sec
),
4523 bfd_errmsg (bfd_get_error ()));
4526 bfd_set_section_alignment (stdoutput
, sec
, align
);
4531 ppc_pe_function (ignore
)
4532 int ignore ATTRIBUTE_UNUSED
;
4538 name
= input_line_pointer
;
4539 endc
= get_symbol_end ();
4541 ext_sym
= symbol_find_or_make (name
);
4543 *input_line_pointer
= endc
;
4545 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4546 SF_SET_FUNCTION (ext_sym
);
4547 SF_SET_PROCESS (ext_sym
);
4548 coff_add_linesym (ext_sym
);
4550 demand_empty_rest_of_line ();
4554 ppc_pe_tocd (ignore
)
4555 int ignore ATTRIBUTE_UNUSED
;
4557 if (tocdata_section
== 0)
4559 tocdata_section
= subseg_new (".tocd", 0);
4560 /* FIXME: section flags won't work. */
4561 bfd_set_section_flags (stdoutput
, tocdata_section
,
4562 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4563 | SEC_READONLY
| SEC_DATA
));
4565 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4569 rdata_section
= subseg_new (".tocd", 0);
4572 ppc_set_current_section (tocdata_section
);
4574 demand_empty_rest_of_line ();
4577 /* Don't adjust TOC relocs to use the section symbol. */
4580 ppc_pe_fix_adjustable (fix
)
4583 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4590 /* XCOFF specific symbol and file handling. */
4592 /* Canonicalize the symbol name. We use the to force the suffix, if
4593 any, to use square brackets, and to be in upper case. */
4596 ppc_canonicalize_symbol_name (name
)
4601 if (ppc_stab_symbol
)
4604 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4618 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4621 if (*s
== '\0' || s
[1] != '\0')
4622 as_bad (_("bad symbol suffix"));
4630 /* Set the class of a symbol based on the suffix, if any. This is
4631 called whenever a new symbol is created. */
4634 ppc_symbol_new_hook (sym
)
4637 struct ppc_tc_sy
*tc
;
4640 tc
= symbol_get_tc (sym
);
4644 tc
->real_name
= NULL
;
4650 if (ppc_stab_symbol
)
4653 s
= strchr (S_GET_NAME (sym
), '[');
4654 if (s
== (const char *) NULL
)
4656 /* There is no suffix. */
4665 if (strcmp (s
, "BS]") == 0)
4669 if (strcmp (s
, "DB]") == 0)
4671 else if (strcmp (s
, "DS]") == 0)
4675 if (strcmp (s
, "GL]") == 0)
4679 if (strcmp (s
, "PR]") == 0)
4683 if (strcmp (s
, "RO]") == 0)
4685 else if (strcmp (s
, "RW]") == 0)
4689 if (strcmp (s
, "SV]") == 0)
4693 if (strcmp (s
, "TC]") == 0)
4695 else if (strcmp (s
, "TI]") == 0)
4697 else if (strcmp (s
, "TB]") == 0)
4699 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4700 tc
->class = XMC_TC0
;
4703 if (strcmp (s
, "UA]") == 0)
4705 else if (strcmp (s
, "UC]") == 0)
4709 if (strcmp (s
, "XO]") == 0)
4714 if (tc
->class == -1)
4715 as_bad (_("Unrecognized symbol suffix"));
4718 /* Set the class of a label based on where it is defined. This
4719 handles symbols without suffixes. Also, move the symbol so that it
4720 follows the csect symbol. */
4723 ppc_frob_label (sym
)
4726 if (ppc_current_csect
!= (symbolS
*) NULL
)
4728 if (symbol_get_tc (sym
)->class == -1)
4729 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4731 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4732 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4733 &symbol_rootP
, &symbol_lastP
);
4734 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4738 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4739 seen. It tells ppc_adjust_symtab whether it needs to look through
4742 static bfd_boolean ppc_saw_abs
;
4744 /* Change the name of a symbol just before writing it out. Set the
4745 real name if the .rename pseudo-op was used. Otherwise, remove any
4746 class suffix. Return 1 if the symbol should not be included in the
4750 ppc_frob_symbol (sym
)
4753 static symbolS
*ppc_last_function
;
4754 static symbolS
*set_end
;
4756 /* Discard symbols that should not be included in the output symbol
4758 if (! symbol_used_in_reloc_p (sym
)
4759 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4760 || (! S_IS_EXTERNAL (sym
)
4761 && ! symbol_get_tc (sym
)->output
4762 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4765 /* This one will disappear anyway. Don't make a csect sym for it. */
4766 if (sym
== abs_section_sym
)
4769 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4770 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4776 name
= S_GET_NAME (sym
);
4777 s
= strchr (name
, '[');
4778 if (s
!= (char *) NULL
)
4784 snew
= xmalloc (len
+ 1);
4785 memcpy (snew
, name
, len
);
4788 S_SET_NAME (sym
, snew
);
4792 if (set_end
!= (symbolS
*) NULL
)
4794 SA_SET_SYM_ENDNDX (set_end
, sym
);
4798 if (SF_GET_FUNCTION (sym
))
4800 if (ppc_last_function
!= (symbolS
*) NULL
)
4801 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4802 ppc_last_function
= sym
;
4803 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4805 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4806 SA_SET_SYM_FSIZE (sym
,
4807 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4810 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4811 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4813 if (ppc_last_function
== (symbolS
*) NULL
)
4814 as_bad (_(".ef with no preceding .function"));
4817 set_end
= ppc_last_function
;
4818 ppc_last_function
= NULL
;
4820 /* We don't have a C_EFCN symbol, but we need to force the
4821 COFF backend to believe that it has seen one. */
4822 coff_last_function
= NULL
;
4826 if (! S_IS_EXTERNAL (sym
)
4827 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4828 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4829 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4830 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4831 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4832 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4833 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4834 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4835 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4836 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4838 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4839 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4842 union internal_auxent
*a
;
4844 /* Create a csect aux. */
4845 i
= S_GET_NUMBER_AUXILIARY (sym
);
4846 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4847 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4848 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4850 /* This is the TOC table. */
4851 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4852 a
->x_csect
.x_scnlen
.l
= 0;
4853 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4855 else if (symbol_get_tc (sym
)->subseg
!= 0)
4857 /* This is a csect symbol. x_scnlen is the size of the
4859 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4860 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4861 S_GET_SEGMENT (sym
))
4862 - S_GET_VALUE (sym
));
4865 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4866 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4867 - S_GET_VALUE (sym
));
4869 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4871 else if (S_GET_SEGMENT (sym
) == bss_section
)
4873 /* This is a common symbol. */
4874 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4875 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4876 if (S_IS_EXTERNAL (sym
))
4877 symbol_get_tc (sym
)->class = XMC_RW
;
4879 symbol_get_tc (sym
)->class = XMC_BS
;
4881 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4883 /* This is an absolute symbol. The csect will be created by
4884 ppc_adjust_symtab. */
4886 a
->x_csect
.x_smtyp
= XTY_LD
;
4887 if (symbol_get_tc (sym
)->class == -1)
4888 symbol_get_tc (sym
)->class = XMC_XO
;
4890 else if (! S_IS_DEFINED (sym
))
4892 /* This is an external symbol. */
4893 a
->x_csect
.x_scnlen
.l
= 0;
4894 a
->x_csect
.x_smtyp
= XTY_ER
;
4896 else if (symbol_get_tc (sym
)->class == XMC_TC
)
4900 /* This is a TOC definition. x_scnlen is the size of the
4902 next
= symbol_next (sym
);
4903 while (symbol_get_tc (next
)->class == XMC_TC0
)
4904 next
= symbol_next (next
);
4905 if (next
== (symbolS
*) NULL
4906 || symbol_get_tc (next
)->class != XMC_TC
)
4908 if (ppc_after_toc_frag
== (fragS
*) NULL
)
4909 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4911 - S_GET_VALUE (sym
));
4913 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
4914 - S_GET_VALUE (sym
));
4918 resolve_symbol_value (next
);
4919 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
4920 - S_GET_VALUE (sym
));
4922 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4928 /* This is a normal symbol definition. x_scnlen is the
4929 symbol index of the containing csect. */
4930 if (S_GET_SEGMENT (sym
) == text_section
)
4931 csect
= ppc_text_csects
;
4932 else if (S_GET_SEGMENT (sym
) == data_section
)
4933 csect
= ppc_data_csects
;
4937 /* Skip the initial dummy symbol. */
4938 csect
= symbol_get_tc (csect
)->next
;
4940 if (csect
== (symbolS
*) NULL
)
4942 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
4943 a
->x_csect
.x_scnlen
.l
= 0;
4947 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
4949 resolve_symbol_value (symbol_get_tc (csect
)->next
);
4950 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
4951 > S_GET_VALUE (sym
))
4953 csect
= symbol_get_tc (csect
)->next
;
4956 a
->x_csect
.x_scnlen
.p
=
4957 coffsymbol (symbol_get_bfdsym (csect
))->native
;
4958 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
4961 a
->x_csect
.x_smtyp
= XTY_LD
;
4964 a
->x_csect
.x_parmhash
= 0;
4965 a
->x_csect
.x_snhash
= 0;
4966 if (symbol_get_tc (sym
)->class == -1)
4967 a
->x_csect
.x_smclas
= XMC_PR
;
4969 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
4970 a
->x_csect
.x_stab
= 0;
4971 a
->x_csect
.x_snstab
= 0;
4973 /* Don't let the COFF backend resort these symbols. */
4974 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
4976 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
4978 /* We want the value to be the symbol index of the referenced
4979 csect symbol. BFD will do that for us if we set the right
4981 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
4982 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
4984 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
4985 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
4987 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
4992 /* The value is the offset from the enclosing csect. */
4993 block
= symbol_get_tc (sym
)->within
;
4994 csect
= symbol_get_tc (block
)->within
;
4995 resolve_symbol_value (csect
);
4996 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
4998 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
4999 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5001 /* We want the value to be a file offset into the line numbers.
5002 BFD will do that for us if we set the right flags. We have
5003 already set the value correctly. */
5004 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5010 /* Adjust the symbol table. This creates csect symbols for all
5011 absolute symbols. */
5014 ppc_adjust_symtab ()
5021 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5025 union internal_auxent
*a
;
5027 if (S_GET_SEGMENT (sym
) != absolute_section
)
5030 csect
= symbol_create (".abs[XO]", absolute_section
,
5031 S_GET_VALUE (sym
), &zero_address_frag
);
5032 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5033 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5034 i
= S_GET_NUMBER_AUXILIARY (csect
);
5035 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5036 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5037 a
->x_csect
.x_scnlen
.l
= 0;
5038 a
->x_csect
.x_smtyp
= XTY_SD
;
5039 a
->x_csect
.x_parmhash
= 0;
5040 a
->x_csect
.x_snhash
= 0;
5041 a
->x_csect
.x_smclas
= XMC_XO
;
5042 a
->x_csect
.x_stab
= 0;
5043 a
->x_csect
.x_snstab
= 0;
5045 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5047 i
= S_GET_NUMBER_AUXILIARY (sym
);
5048 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5049 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5050 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5053 ppc_saw_abs
= FALSE
;
5056 /* Set the VMA for a section. This is called on all the sections in
5060 ppc_frob_section (sec
)
5063 static bfd_vma vma
= 0;
5065 vma
= md_section_align (sec
, vma
);
5066 bfd_set_section_vma (stdoutput
, sec
, vma
);
5067 vma
+= bfd_section_size (stdoutput
, sec
);
5070 #endif /* OBJ_XCOFF */
5072 /* Turn a string in input_line_pointer into a floating point constant
5073 of type TYPE, and store the appropriate bytes in *LITP. The number
5074 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5075 returned, or NULL on OK. */
5078 md_atof (type
, litp
, sizep
)
5084 LITTLENUM_TYPE words
[4];
5100 return _("bad call to md_atof");
5103 t
= atof_ieee (input_line_pointer
, type
, words
);
5105 input_line_pointer
= t
;
5109 if (target_big_endian
)
5111 for (i
= 0; i
< prec
; i
++)
5113 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5119 for (i
= prec
- 1; i
>= 0; i
--)
5121 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5129 /* Write a value out to the object file, using the appropriate
5133 md_number_to_chars (buf
, val
, n
)
5138 if (target_big_endian
)
5139 number_to_chars_bigendian (buf
, val
, n
);
5141 number_to_chars_littleendian (buf
, val
, n
);
5144 /* Align a section (I don't know why this is machine dependent). */
5147 md_section_align (seg
, addr
)
5151 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5153 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5156 /* We don't have any form of relaxing. */
5159 md_estimate_size_before_relax (fragp
, seg
)
5160 fragS
*fragp ATTRIBUTE_UNUSED
;
5161 asection
*seg ATTRIBUTE_UNUSED
;
5167 /* Convert a machine dependent frag. We never generate these. */
5170 md_convert_frag (abfd
, sec
, fragp
)
5171 bfd
*abfd ATTRIBUTE_UNUSED
;
5172 asection
*sec ATTRIBUTE_UNUSED
;
5173 fragS
*fragp ATTRIBUTE_UNUSED
;
5178 /* We have no need to default values of symbols. */
5181 md_undefined_symbol (name
)
5182 char *name ATTRIBUTE_UNUSED
;
5187 /* Functions concerning relocs. */
5189 /* The location from which a PC relative jump should be calculated,
5190 given a PC relative reloc. */
5193 md_pcrel_from_section (fixp
, sec
)
5195 segT sec ATTRIBUTE_UNUSED
;
5197 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5202 /* This is called to see whether a fixup should be adjusted to use a
5203 section symbol. We take the opportunity to change a fixup against
5204 a symbol in the TOC subsegment into a reloc against the
5205 corresponding .tc symbol. */
5208 ppc_fix_adjustable (fix
)
5211 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5212 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5213 TC_SYMFIELD_TYPE
*tc
;
5215 if (symseg
== absolute_section
)
5218 if (ppc_toc_csect
!= (symbolS
*) NULL
5219 && fix
->fx_addsy
!= ppc_toc_csect
5220 && symseg
== data_section
5221 && val
>= ppc_toc_frag
->fr_address
5222 && (ppc_after_toc_frag
== (fragS
*) NULL
5223 || val
< ppc_after_toc_frag
->fr_address
))
5227 for (sy
= symbol_next (ppc_toc_csect
);
5228 sy
!= (symbolS
*) NULL
;
5229 sy
= symbol_next (sy
))
5231 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5233 if (sy_tc
->class == XMC_TC0
)
5235 if (sy_tc
->class != XMC_TC
)
5237 if (val
== resolve_symbol_value (sy
))
5240 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5245 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5246 _("symbol in .toc does not match any .tc"));
5249 /* Possibly adjust the reloc to be against the csect. */
5250 tc
= symbol_get_tc (fix
->fx_addsy
);
5252 && tc
->class != XMC_TC0
5253 && tc
->class != XMC_TC
5254 && symseg
!= bss_section
5255 /* Don't adjust if this is a reloc in the toc section. */
5256 && (symseg
!= data_section
5257 || ppc_toc_csect
== NULL
5258 || val
< ppc_toc_frag
->fr_address
5259 || (ppc_after_toc_frag
!= NULL
5260 && val
>= ppc_after_toc_frag
->fr_address
)))
5263 symbolS
*next_csect
;
5265 if (symseg
== text_section
)
5266 csect
= ppc_text_csects
;
5267 else if (symseg
== data_section
)
5268 csect
= ppc_data_csects
;
5272 /* Skip the initial dummy symbol. */
5273 csect
= symbol_get_tc (csect
)->next
;
5275 if (csect
!= (symbolS
*) NULL
)
5277 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5278 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5280 /* If the csect address equals the symbol value, then we
5281 have to look through the full symbol table to see
5282 whether this is the csect we want. Note that we will
5283 only get here if the csect has zero length. */
5284 if (symbol_get_frag (csect
)->fr_address
== val
5285 && S_GET_VALUE (csect
) == val
)
5289 for (scan
= symbol_next (csect
);
5291 scan
= symbol_next (scan
))
5293 if (symbol_get_tc (scan
)->subseg
!= 0)
5295 if (scan
== fix
->fx_addsy
)
5299 /* If we found the symbol before the next csect
5300 symbol, then this is the csect we want. */
5301 if (scan
== fix
->fx_addsy
)
5308 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5309 fix
->fx_addsy
= csect
;
5314 /* Adjust a reloc against a .lcomm symbol to be against the base
5316 if (symseg
== bss_section
5317 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5319 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5321 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5328 /* A reloc from one csect to another must be kept. The assembler
5329 will, of course, keep relocs between sections, and it will keep
5330 absolute relocs, but we need to force it to keep PC relative relocs
5331 between two csects in the same section. */
5334 ppc_force_relocation (fix
)
5337 /* At this point fix->fx_addsy should already have been converted to
5338 a csect symbol. If the csect does not include the fragment, then
5339 we need to force the relocation. */
5341 && fix
->fx_addsy
!= NULL
5342 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5343 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5344 > fix
->fx_frag
->fr_address
)
5345 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5346 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5347 <= fix
->fx_frag
->fr_address
))))
5350 return generic_force_reloc (fix
);
5353 #endif /* OBJ_XCOFF */
5356 /* If this function returns non-zero, it guarantees that a relocation
5357 will be emitted for a fixup. */
5360 ppc_force_relocation (fix
)
5363 /* Branch prediction relocations must force a relocation, as must
5364 the vtable description relocs. */
5365 switch (fix
->fx_r_type
)
5367 case BFD_RELOC_PPC_B16_BRTAKEN
:
5368 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5369 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5370 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5371 case BFD_RELOC_PPC64_TOC
:
5377 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5378 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5381 return generic_force_reloc (fix
);
5385 ppc_fix_adjustable (fix
)
5388 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5389 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5390 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5391 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5392 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5393 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5394 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5395 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5396 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5398 || (fix
->fx_subsy
!= NULL
5399 && (S_GET_SEGMENT (fix
->fx_subsy
)
5400 == S_GET_SEGMENT (fix
->fx_addsy
)))
5401 || S_IS_LOCAL (fix
->fx_addsy
)));
5405 /* Apply a fixup to the object code. This is called for all the
5406 fixups we generated by the call to fix_new_exp, above. In the call
5407 above we used a reloc code which was the largest legal reloc code
5408 plus the operand index. Here we undo that to recover the operand
5409 index. At this point all symbol values should be fully resolved,
5410 and we attempt to completely resolve the reloc. If we can not do
5411 that, we determine the correct reloc code and put it back in the
5415 md_apply_fix3 (fixP
, valP
, seg
)
5418 segT seg ATTRIBUTE_UNUSED
;
5420 valueT value
= * valP
;
5423 if (fixP
->fx_addsy
!= NULL
)
5425 /* Hack around bfd_install_relocation brain damage. */
5427 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5432 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5433 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5434 doing this relocation the code in write.c is going to call
5435 bfd_install_relocation, which is also going to use the symbol
5436 value. That means that if the reloc is fully resolved we want to
5437 use *valP since bfd_install_relocation is not being used.
5438 However, if the reloc is not fully resolved we do not want to use
5439 *valP, and must use fx_offset instead. However, if the reloc
5440 is PC relative, we do want to use *valP since it includes the
5441 result of md_pcrel_from. This is confusing. */
5442 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5445 else if (fixP
->fx_pcrel
)
5449 value
= fixP
->fx_offset
;
5452 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5454 /* We can't actually support subtracting a symbol. */
5455 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5458 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5461 const struct powerpc_operand
*operand
;
5465 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5467 operand
= &powerpc_operands
[opindex
];
5470 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5471 does not generate a reloc. It uses the offset of `sym' within its
5472 csect. Other usages, such as `.long sym', generate relocs. This
5473 is the documented behaviour of non-TOC symbols. */
5474 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5475 && operand
->bits
== 16
5476 && operand
->shift
== 0
5477 && (operand
->insert
== NULL
|| ppc_obj64
)
5478 && fixP
->fx_addsy
!= NULL
5479 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5480 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5481 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5482 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5484 value
= fixP
->fx_offset
;
5489 /* Fetch the instruction, insert the fully resolved operand
5490 value, and stuff the instruction back again. */
5491 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5492 if (target_big_endian
)
5493 insn
= bfd_getb32 ((unsigned char *) where
);
5495 insn
= bfd_getl32 ((unsigned char *) where
);
5496 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5497 fixP
->fx_file
, fixP
->fx_line
);
5498 if (target_big_endian
)
5499 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5501 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5504 /* Nothing else to do here. */
5507 assert (fixP
->fx_addsy
!= NULL
);
5509 /* Determine a BFD reloc value based on the operand information.
5510 We are only prepared to turn a few of the operands into
5512 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5513 && operand
->bits
== 26
5514 && operand
->shift
== 0)
5515 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5516 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5517 && operand
->bits
== 16
5518 && operand
->shift
== 0)
5520 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5523 if (target_big_endian
)
5524 fixP
->fx_where
+= 2;
5527 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5528 && operand
->bits
== 26
5529 && operand
->shift
== 0)
5530 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5531 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5532 && operand
->bits
== 16
5533 && operand
->shift
== 0)
5535 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5538 if (target_big_endian
)
5539 fixP
->fx_where
+= 2;
5542 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5543 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5544 && operand
->bits
== 16
5545 && operand
->shift
== 0)
5547 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5549 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5552 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5553 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5558 fixP
->fx_r_type
= BFD_RELOC_16
;
5561 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5562 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5566 if (target_big_endian
)
5567 fixP
->fx_where
+= 2;
5569 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5575 /* Use expr_symbol_where to see if this is an expression
5577 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5578 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5579 _("unresolved expression that must be resolved"));
5581 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5582 _("unsupported relocation against %s"),
5583 S_GET_NAME (fixP
->fx_addsy
));
5591 ppc_elf_validate_fix (fixP
, seg
);
5593 switch (fixP
->fx_r_type
)
5595 case BFD_RELOC_CTOR
:
5602 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5606 case BFD_RELOC_32_PCREL
:
5607 case BFD_RELOC_PPC_EMB_NADDR32
:
5608 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5615 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5618 case BFD_RELOC_64_PCREL
:
5619 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5623 case BFD_RELOC_LO16
:
5625 case BFD_RELOC_GPREL16
:
5626 case BFD_RELOC_16_GOT_PCREL
:
5627 case BFD_RELOC_16_GOTOFF
:
5628 case BFD_RELOC_LO16_GOTOFF
:
5629 case BFD_RELOC_HI16_GOTOFF
:
5630 case BFD_RELOC_HI16_S_GOTOFF
:
5631 case BFD_RELOC_16_BASEREL
:
5632 case BFD_RELOC_LO16_BASEREL
:
5633 case BFD_RELOC_HI16_BASEREL
:
5634 case BFD_RELOC_HI16_S_BASEREL
:
5635 case BFD_RELOC_PPC_EMB_NADDR16
:
5636 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5637 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5638 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5639 case BFD_RELOC_PPC_EMB_SDAI16
:
5640 case BFD_RELOC_PPC_EMB_SDA2REL
:
5641 case BFD_RELOC_PPC_EMB_SDA2I16
:
5642 case BFD_RELOC_PPC_EMB_RELSEC16
:
5643 case BFD_RELOC_PPC_EMB_RELST_LO
:
5644 case BFD_RELOC_PPC_EMB_RELST_HI
:
5645 case BFD_RELOC_PPC_EMB_RELST_HA
:
5646 case BFD_RELOC_PPC_EMB_RELSDA
:
5647 case BFD_RELOC_PPC_TOC16
:
5649 case BFD_RELOC_PPC64_TOC16_LO
:
5650 case BFD_RELOC_PPC64_TOC16_HI
:
5651 case BFD_RELOC_PPC64_TOC16_HA
:
5655 if (fixP
->fx_addsy
!= NULL
)
5656 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5657 _("cannot emit PC relative %s relocation against %s"),
5658 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5659 S_GET_NAME (fixP
->fx_addsy
));
5661 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5662 _("cannot emit PC relative %s relocation"),
5663 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5666 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5670 /* This case happens when you write, for example,
5672 where L1 and L2 are defined later. */
5673 case BFD_RELOC_HI16
:
5676 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5680 case BFD_RELOC_HI16_S
:
5683 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5688 case BFD_RELOC_PPC64_HIGHER
:
5691 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5692 PPC_HIGHER (value
), 2);
5695 case BFD_RELOC_PPC64_HIGHER_S
:
5698 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5699 PPC_HIGHERA (value
), 2);
5702 case BFD_RELOC_PPC64_HIGHEST
:
5705 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5706 PPC_HIGHEST (value
), 2);
5709 case BFD_RELOC_PPC64_HIGHEST_S
:
5712 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5713 PPC_HIGHESTA (value
), 2);
5716 case BFD_RELOC_PPC64_ADDR16_DS
:
5717 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5718 case BFD_RELOC_PPC64_GOT16_DS
:
5719 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5720 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5721 case BFD_RELOC_PPC64_SECTOFF_DS
:
5722 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5723 case BFD_RELOC_PPC64_TOC16_DS
:
5724 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5725 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5726 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5730 unsigned char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5733 if (target_big_endian
)
5734 val
= bfd_getb32 (where
- 2);
5736 val
= bfd_getl32 (where
);
5738 /* lq insns reserve the four lsbs. */
5739 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5740 && (val
& (0x3f << 26)) == (56 << 26))
5742 val
|= value
& mask
;
5743 if (target_big_endian
)
5744 bfd_putb16 ((bfd_vma
) val
, where
);
5746 bfd_putl16 ((bfd_vma
) val
, where
);
5750 case BFD_RELOC_PPC_B16_BRTAKEN
:
5751 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5752 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5753 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5756 case BFD_RELOC_PPC_TLS
:
5757 case BFD_RELOC_PPC_DTPMOD
:
5758 case BFD_RELOC_PPC_TPREL16
:
5759 case BFD_RELOC_PPC_TPREL16_LO
:
5760 case BFD_RELOC_PPC_TPREL16_HI
:
5761 case BFD_RELOC_PPC_TPREL16_HA
:
5762 case BFD_RELOC_PPC_TPREL
:
5763 case BFD_RELOC_PPC_DTPREL16
:
5764 case BFD_RELOC_PPC_DTPREL16_LO
:
5765 case BFD_RELOC_PPC_DTPREL16_HI
:
5766 case BFD_RELOC_PPC_DTPREL16_HA
:
5767 case BFD_RELOC_PPC_DTPREL
:
5768 case BFD_RELOC_PPC_GOT_TLSGD16
:
5769 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5770 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5771 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5772 case BFD_RELOC_PPC_GOT_TLSLD16
:
5773 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5774 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5775 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5776 case BFD_RELOC_PPC_GOT_TPREL16
:
5777 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5778 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5779 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5780 case BFD_RELOC_PPC_GOT_DTPREL16
:
5781 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5782 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5783 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5784 case BFD_RELOC_PPC64_TPREL16_DS
:
5785 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5786 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5787 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5788 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5789 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5790 case BFD_RELOC_PPC64_DTPREL16_DS
:
5791 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5792 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5793 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5794 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5795 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5798 /* Because SDA21 modifies the register field, the size is set to 4
5799 bytes, rather than 2, so offset it here appropriately. */
5800 case BFD_RELOC_PPC_EMB_SDA21
:
5804 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5805 + ((target_big_endian
) ? 2 : 0),
5813 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5817 case BFD_RELOC_24_PLT_PCREL
:
5818 case BFD_RELOC_PPC_LOCAL24PC
:
5819 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5827 /* Fetch the instruction, insert the fully resolved operand
5828 value, and stuff the instruction back again. */
5829 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5830 if (target_big_endian
)
5831 insn
= bfd_getb32 ((unsigned char *) where
);
5833 insn
= bfd_getl32 ((unsigned char *) where
);
5834 if ((value
& 3) != 0)
5835 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5836 _("must branch to an address a multiple of 4"));
5837 if ((offsetT
) value
< -0x40000000
5838 || (offsetT
) value
>= 0x40000000)
5839 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5840 _("@local or @plt branch destination is too far away, %ld bytes"),
5842 insn
= insn
| (value
& 0x03fffffc);
5843 if (target_big_endian
)
5844 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5846 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5850 case BFD_RELOC_VTABLE_INHERIT
:
5853 && !S_IS_DEFINED (fixP
->fx_addsy
)
5854 && !S_IS_WEAK (fixP
->fx_addsy
))
5855 S_SET_WEAK (fixP
->fx_addsy
);
5858 case BFD_RELOC_VTABLE_ENTRY
:
5863 /* Generated by reference to `sym@tocbase'. The sym is
5864 ignored by the linker. */
5865 case BFD_RELOC_PPC64_TOC
:
5871 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
5878 fixP
->fx_addnumber
= value
;
5880 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
5881 fixP
->fx_addnumber
= 0;
5885 fixP
->fx_addnumber
= 0;
5887 /* We want to use the offset within the data segment of the
5888 symbol, not the actual VMA of the symbol. */
5889 fixP
->fx_addnumber
=
5890 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
5896 /* Generate a reloc for a fixup. */
5899 tc_gen_reloc (seg
, fixp
)
5900 asection
*seg ATTRIBUTE_UNUSED
;
5905 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
5907 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
5908 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
5909 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5910 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
5911 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
5913 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
5914 _("reloc %d not supported by object file format"),
5915 (int) fixp
->fx_r_type
);
5918 reloc
->addend
= fixp
->fx_addnumber
;