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"
27 #include "dw2gencfi.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 dwarf2 data alignment, adjusted for 32 or 64 bit. */
191 int ppc_cie_data_alignment
;
193 /* The target specific pseudo-ops which we support. */
195 const pseudo_typeS md_pseudo_table
[] =
197 /* Pseudo-ops which must be overridden. */
198 { "byte", ppc_byte
, 0 },
201 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
202 legitimately belong in the obj-*.c file. However, XCOFF is based
203 on COFF, and is only implemented for the RS/6000. We just use
204 obj-coff.c, and add what we need here. */
205 { "comm", ppc_comm
, 0 },
206 { "lcomm", ppc_comm
, 1 },
210 { "bi", ppc_biei
, 0 },
212 { "csect", ppc_csect
, 0 },
213 { "data", ppc_section
, 'd' },
217 { "ei", ppc_biei
, 1 },
219 { "extern", ppc_extern
, 0 },
220 { "function", ppc_function
, 0 },
221 { "lglobl", ppc_lglobl
, 0 },
222 { "rename", ppc_rename
, 0 },
223 { "section", ppc_named_section
, 0 },
224 { "stabx", ppc_stabx
, 0 },
225 { "text", ppc_section
, 't' },
226 { "toc", ppc_toc
, 0 },
227 { "long", ppc_xcoff_cons
, 2 },
228 { "llong", ppc_xcoff_cons
, 3 },
229 { "word", ppc_xcoff_cons
, 1 },
230 { "short", ppc_xcoff_cons
, 1 },
231 { "vbyte", ppc_vbyte
, 0 },
235 { "llong", ppc_elf_cons
, 8 },
236 { "quad", ppc_elf_cons
, 8 },
237 { "long", ppc_elf_cons
, 4 },
238 { "word", ppc_elf_cons
, 2 },
239 { "short", ppc_elf_cons
, 2 },
240 { "rdata", ppc_elf_rdata
, 0 },
241 { "rodata", ppc_elf_rdata
, 0 },
242 { "lcomm", ppc_elf_lcomm
, 0 },
246 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
247 { "previous", ppc_previous
, 0 },
248 { "pdata", ppc_pdata
, 0 },
249 { "ydata", ppc_ydata
, 0 },
250 { "reldata", ppc_reldata
, 0 },
251 { "rdata", ppc_rdata
, 0 },
252 { "ualong", ppc_ualong
, 0 },
253 { "znop", ppc_znop
, 0 },
254 { "comm", ppc_pe_comm
, 0 },
255 { "lcomm", ppc_pe_comm
, 1 },
256 { "section", ppc_pe_section
, 0 },
257 { "function", ppc_pe_function
,0 },
258 { "tocd", ppc_pe_tocd
, 0 },
261 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
263 { "machine", ppc_machine
, 0 },
270 /* Predefined register names if -mregnames (or default for Windows NT).
271 In general, there are lots of them, in an attempt to be compatible
272 with a number of other Windows NT assemblers. */
274 /* Structure to hold information about predefined registers. */
281 /* List of registers that are pre-defined:
283 Each general register has predefined names of the form:
284 1. r<reg_num> which has the value <reg_num>.
285 2. r.<reg_num> which has the value <reg_num>.
287 Each floating point register has predefined names of the form:
288 1. f<reg_num> which has the value <reg_num>.
289 2. f.<reg_num> which has the value <reg_num>.
291 Each vector unit register has predefined names of the form:
292 1. v<reg_num> which has the value <reg_num>.
293 2. v.<reg_num> which has the value <reg_num>.
295 Each condition register has predefined names of the form:
296 1. cr<reg_num> which has the value <reg_num>.
297 2. cr.<reg_num> which has the value <reg_num>.
299 There are individual registers as well:
300 sp or r.sp has the value 1
301 rtoc or r.toc has the value 2
302 fpscr has the value 0
308 dsisr has the value 18
310 sdr1 has the value 25
311 srr0 has the value 26
312 srr1 has the value 27
314 The table is sorted. Suitable for searching by a binary search. */
316 static const struct pd_reg pre_defined_registers
[] =
318 { "cr.0", 0 }, /* Condition Registers */
338 { "dar", 19 }, /* Data Access Register */
339 { "dec", 22 }, /* Decrementer */
340 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
342 { "f.0", 0 }, /* Floating point registers */
410 { "lr", 8 }, /* Link Register */
414 { "r.0", 0 }, /* General Purpose Registers */
447 { "r.sp", 1 }, /* Stack Pointer */
449 { "r.toc", 2 }, /* Pointer to the table of contents */
451 { "r0", 0 }, /* More general purpose registers */
484 { "rtoc", 2 }, /* Table of contents */
486 { "sdr1", 25 }, /* Storage Description Register 1 */
490 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
491 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
493 { "v.0", 0 }, /* Vector registers */
563 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
565 /* Given NAME, find the register number associated with that name, return
566 the integer value associated with the given name or -1 on failure. */
568 static int reg_name_search
569 PARAMS ((const struct pd_reg
*, int, const char * name
));
572 reg_name_search (regs
, regcount
, name
)
573 const struct pd_reg
*regs
;
577 int middle
, low
, high
;
585 middle
= (low
+ high
) / 2;
586 cmp
= strcasecmp (name
, regs
[middle
].name
);
592 return regs
[middle
].value
;
600 * Summary of register_name.
602 * in: Input_line_pointer points to 1st char of operand.
604 * out: A expressionS.
605 * The operand may have been a register: in this case, X_op == O_register,
606 * X_add_number is set to the register number, and truth is returned.
607 * Input_line_pointer->(next non-blank) char after operand, or is in its
612 register_name (expressionP
)
613 expressionS
*expressionP
;
620 /* Find the spelling of the operand. */
621 start
= name
= input_line_pointer
;
622 if (name
[0] == '%' && ISALPHA (name
[1]))
623 name
= ++input_line_pointer
;
625 else if (!reg_names_p
|| !ISALPHA (name
[0]))
628 c
= get_symbol_end ();
629 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
631 /* Put back the delimiting char. */
632 *input_line_pointer
= c
;
634 /* Look to see if it's in the register table. */
637 expressionP
->X_op
= O_register
;
638 expressionP
->X_add_number
= reg_number
;
640 /* Make the rest nice. */
641 expressionP
->X_add_symbol
= NULL
;
642 expressionP
->X_op_symbol
= NULL
;
646 /* Reset the line as if we had not done anything. */
647 input_line_pointer
= start
;
651 /* This function is called for each symbol seen in an expression. It
652 handles the special parsing which PowerPC assemblers are supposed
653 to use for condition codes. */
655 /* Whether to do the special parsing. */
656 static bfd_boolean cr_operand
;
658 /* Names to recognize in a condition code. This table is sorted. */
659 static const struct pd_reg cr_names
[] =
676 /* Parsing function. This returns non-zero if it recognized an
680 ppc_parse_name (name
, expr
)
689 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
694 expr
->X_op
= O_constant
;
695 expr
->X_add_number
= val
;
700 /* Local variables. */
702 /* The type of processor we are assembling for. This is one or more
703 of the PPC_OPCODE flags defined in opcode/ppc.h. */
704 static unsigned long ppc_cpu
= 0;
706 /* Whether to target xcoff64/elf64. */
707 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
709 /* Opcode hash table. */
710 static struct hash_control
*ppc_hash
;
712 /* Macro hash table. */
713 static struct hash_control
*ppc_macro_hash
;
716 /* What type of shared library support to use. */
717 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
719 /* Flags to set in the elf header. */
720 static flagword ppc_flags
= 0;
722 /* Whether this is Solaris or not. */
723 #ifdef TARGET_SOLARIS_COMMENT
724 #define SOLARIS_P TRUE
726 #define SOLARIS_P FALSE
729 static bfd_boolean msolaris
= SOLARIS_P
;
734 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
735 using a bunch of different sections. These assembler sections,
736 however, are all encompassed within the .text or .data sections of
737 the final output file. We handle this by using different
738 subsegments within these main segments. */
740 /* Next subsegment to allocate within the .text segment. */
741 static subsegT ppc_text_subsegment
= 2;
743 /* Linked list of csects in the text section. */
744 static symbolS
*ppc_text_csects
;
746 /* Next subsegment to allocate within the .data segment. */
747 static subsegT ppc_data_subsegment
= 2;
749 /* Linked list of csects in the data section. */
750 static symbolS
*ppc_data_csects
;
752 /* The current csect. */
753 static symbolS
*ppc_current_csect
;
755 /* The RS/6000 assembler uses a TOC which holds addresses of functions
756 and variables. Symbols are put in the TOC with the .tc pseudo-op.
757 A special relocation is used when accessing TOC entries. We handle
758 the TOC as a subsegment within the .data segment. We set it up if
759 we see a .toc pseudo-op, and save the csect symbol here. */
760 static symbolS
*ppc_toc_csect
;
762 /* The first frag in the TOC subsegment. */
763 static fragS
*ppc_toc_frag
;
765 /* The first frag in the first subsegment after the TOC in the .data
766 segment. NULL if there are no subsegments after the TOC. */
767 static fragS
*ppc_after_toc_frag
;
769 /* The current static block. */
770 static symbolS
*ppc_current_block
;
772 /* The COFF debugging section; set by md_begin. This is not the
773 .debug section, but is instead the secret BFD section which will
774 cause BFD to set the section number of a symbol to N_DEBUG. */
775 static asection
*ppc_coff_debug_section
;
777 #endif /* OBJ_XCOFF */
781 /* Various sections that we need for PE coff support. */
782 static segT ydata_section
;
783 static segT pdata_section
;
784 static segT reldata_section
;
785 static segT rdata_section
;
786 static segT tocdata_section
;
788 /* The current section and the previous section. See ppc_previous. */
789 static segT ppc_previous_section
;
790 static segT ppc_current_section
;
795 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
796 #define PPC_APUINFO_ISEL 0x40
797 #define PPC_APUINFO_PMR 0x41
798 #define PPC_APUINFO_RFMCI 0x42
799 #define PPC_APUINFO_CACHELCK 0x43
800 #define PPC_APUINFO_SPE 0x100
801 #define PPC_APUINFO_EFS 0x101
802 #define PPC_APUINFO_BRLOCK 0x102
805 * We keep a list of APUinfo
807 unsigned long *ppc_apuinfo_list
;
808 unsigned int ppc_apuinfo_num
;
809 unsigned int ppc_apuinfo_num_alloc
;
813 const char *const md_shortopts
= "b:l:usm:K:VQ:";
815 const char *const md_shortopts
= "um:";
817 const struct option md_longopts
[] = {
818 {NULL
, no_argument
, NULL
, 0}
820 const size_t md_longopts_size
= sizeof (md_longopts
);
823 /* Handle -m options that set cpu type, and .machine arg. */
826 parse_cpu (const char *arg
)
828 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
830 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
831 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
832 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
833 else if (strcmp (arg
, "pwr") == 0)
834 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
835 /* -m601 means to assemble for the PowerPC 601, which includes
836 instructions that are holdovers from the Power. */
837 else if (strcmp (arg
, "601") == 0)
838 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
839 | PPC_OPCODE_601
| PPC_OPCODE_32
);
840 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
842 else if (strcmp (arg
, "ppc") == 0
843 || strcmp (arg
, "ppc32") == 0
844 || strcmp (arg
, "603") == 0
845 || strcmp (arg
, "604") == 0)
846 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
847 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
848 else if (strcmp (arg
, "403") == 0
849 || strcmp (arg
, "405") == 0)
850 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
851 | PPC_OPCODE_403
| PPC_OPCODE_32
);
852 else if (strcmp (arg
, "440") == 0)
853 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
854 | PPC_OPCODE_440
| PPC_OPCODE_ISEL
| PPC_OPCODE_RFMCI
);
855 else if (strcmp (arg
, "7400") == 0
856 || strcmp (arg
, "7410") == 0
857 || strcmp (arg
, "7450") == 0
858 || strcmp (arg
, "7455") == 0)
859 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
860 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
);
861 else if (strcmp (arg
, "altivec") == 0)
864 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
866 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
868 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
870 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
871 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
872 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
875 else if (strcmp (arg
, "spe") == 0)
878 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
880 ppc_cpu
|= PPC_OPCODE_SPE
;
882 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
884 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
886 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
888 else if (strcmp (arg
, "ppc64bridge") == 0)
890 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
891 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
893 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
894 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
896 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
898 /* -mbooke64 means enable 64-bit BookE support. */
899 else if (strcmp (arg
, "booke64") == 0)
901 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
902 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
904 else if (strcmp (arg
, "power4") == 0)
906 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
909 /* -mcom means assemble for the common intersection between Power
910 and PowerPC. At present, we just allow the union, rather
911 than the intersection. */
912 else if (strcmp (arg
, "com") == 0)
913 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
914 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
915 else if (strcmp (arg
, "any") == 0)
916 ppc_cpu
|= PPC_OPCODE_ANY
;
924 md_parse_option (c
, arg
)
931 /* -u means that any undefined symbols should be treated as
932 external, which is the default for gas anyhow. */
937 /* Solaris as takes -le (presumably for little endian). For completeness
938 sake, recognize -be also. */
939 if (strcmp (arg
, "e") == 0)
941 target_big_endian
= 0;
942 set_target_endian
= 1;
950 if (strcmp (arg
, "e") == 0)
952 target_big_endian
= 1;
953 set_target_endian
= 1;
961 /* Recognize -K PIC. */
962 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
965 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
973 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
975 if (strcmp (arg
, "64") == 0)
980 as_fatal (_("%s unsupported"), "-a64");
983 else if (strcmp (arg
, "32") == 0)
993 else if (strcmp (arg
, "regnames") == 0)
996 else if (strcmp (arg
, "no-regnames") == 0)
1000 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1001 that require relocation. */
1002 else if (strcmp (arg
, "relocatable") == 0)
1004 shlib
= SHLIB_MRELOCATABLE
;
1005 ppc_flags
|= EF_PPC_RELOCATABLE
;
1008 else if (strcmp (arg
, "relocatable-lib") == 0)
1010 shlib
= SHLIB_MRELOCATABLE
;
1011 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1014 /* -memb, set embedded bit. */
1015 else if (strcmp (arg
, "emb") == 0)
1016 ppc_flags
|= EF_PPC_EMB
;
1018 /* -mlittle/-mbig set the endianess. */
1019 else if (strcmp (arg
, "little") == 0
1020 || strcmp (arg
, "little-endian") == 0)
1022 target_big_endian
= 0;
1023 set_target_endian
= 1;
1026 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1028 target_big_endian
= 1;
1029 set_target_endian
= 1;
1032 else if (strcmp (arg
, "solaris") == 0)
1035 ppc_comment_chars
= ppc_solaris_comment_chars
;
1038 else if (strcmp (arg
, "no-solaris") == 0)
1041 ppc_comment_chars
= ppc_eabi_comment_chars
;
1046 as_bad (_("invalid switch -m%s"), arg
);
1052 /* -V: SVR4 argument to print version ID. */
1054 print_version_id ();
1057 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1058 should be emitted or not. FIXME: Not implemented. */
1062 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1063 rather than .stabs.excl, which is ignored by the linker.
1064 FIXME: Not implemented. */
1080 md_show_usage (stream
)
1083 fprintf (stream
, _("\
1085 -a32 generate ELF32/XCOFF32\n\
1086 -a64 generate ELF64/XCOFF64\n\
1088 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1089 -mpwr generate code for POWER (RIOS1)\n\
1090 -m601 generate code for PowerPC 601\n\
1091 -mppc, -mppc32, -m603, -m604\n\
1092 generate code for PowerPC 603/604\n\
1093 -m403, -m405 generate code for PowerPC 403/405\n\
1094 -m440 generate code for PowerPC 440\n\
1095 -m7400, -m7410, -m7450, -m7455\n\
1096 generate code For PowerPC 7400/7410/7450/7455\n"));
1097 fprintf (stream
, _("\
1098 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1099 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1100 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1101 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1102 -mpower4 generate code for Power4 architecture\n\
1103 -mcom generate code Power/PowerPC common instructions\n\
1104 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1105 fprintf (stream
, _("\
1106 -maltivec generate code for AltiVec\n\
1107 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1108 -mspe generate code for Motorola SPE instructions\n\
1109 -mregnames Allow symbolic names for registers\n\
1110 -mno-regnames Do not allow symbolic names for registers\n"));
1112 fprintf (stream
, _("\
1113 -mrelocatable support for GCC's -mrelocatble option\n\
1114 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1115 -memb set PPC_EMB bit in ELF flags\n\
1116 -mlittle, -mlittle-endian, -l, -le\n\
1117 generate code for a little endian machine\n\
1118 -mbig, -mbig-endian, -b, -be\n\
1119 generate code for a big endian machine\n\
1120 -msolaris generate code for Solaris\n\
1121 -mno-solaris do not generate code for Solaris\n\
1122 -V print assembler version number\n\
1123 -Qy, -Qn ignored\n"));
1127 /* Set ppc_cpu if it is not already set. */
1132 const char *default_os
= TARGET_OS
;
1133 const char *default_cpu
= TARGET_CPU
;
1135 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1138 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1139 else if (strncmp (default_os
, "aix", 3) == 0
1140 && default_os
[3] >= '4' && default_os
[3] <= '9')
1141 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1142 else if (strncmp (default_os
, "aix3", 4) == 0)
1143 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1144 else if (strcmp (default_cpu
, "rs6000") == 0)
1145 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1146 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1148 if (default_cpu
[7] == '6' && default_cpu
[8] == '4')
1149 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1151 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1154 as_fatal (_("Unknown default cpu = %s, os = %s"),
1155 default_cpu
, default_os
);
1159 /* Figure out the BFD architecture to use. */
1161 enum bfd_architecture
1164 const char *default_cpu
= TARGET_CPU
;
1167 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1168 return bfd_arch_powerpc
;
1169 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1170 return bfd_arch_rs6000
;
1171 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1173 if (strcmp (default_cpu
, "rs6000") == 0)
1174 return bfd_arch_rs6000
;
1175 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1176 return bfd_arch_powerpc
;
1179 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1180 return bfd_arch_unknown
;
1187 return bfd_mach_ppc64
;
1188 else if (ppc_arch () == bfd_arch_rs6000
)
1189 return bfd_mach_rs6k
;
1191 return bfd_mach_ppc
;
1195 ppc_target_format ()
1199 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1201 return "xcoff-powermac";
1204 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1206 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1211 return (target_big_endian
1212 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1213 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1217 /* Insert opcodes and macros into hash tables. Called at startup and
1221 ppc_setup_opcodes (void)
1223 register const struct powerpc_opcode
*op
;
1224 const struct powerpc_opcode
*op_end
;
1225 const struct powerpc_macro
*macro
;
1226 const struct powerpc_macro
*macro_end
;
1227 bfd_boolean dup_insn
= FALSE
;
1229 if (ppc_hash
!= NULL
)
1230 hash_die (ppc_hash
);
1231 if (ppc_macro_hash
!= NULL
)
1232 hash_die (ppc_macro_hash
);
1234 /* Insert the opcodes into a hash table. */
1235 ppc_hash
= hash_new ();
1237 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1238 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1240 know ((op
->opcode
& op
->mask
) == op
->opcode
);
1242 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1243 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1244 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1245 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1246 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1247 /* Certain instructions (eg: extsw) do not exist in the
1248 32-bit BookE instruction set, but they do exist in the
1249 64-bit BookE instruction set, and other PPC instruction
1250 sets. Check to see if the opcode has the BOOKE64 flag set.
1251 If it does make sure that the target CPU is not the BookE32. */
1252 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1253 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1254 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1255 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1256 || ((op
->flags
& PPC_OPCODE_POWER4
)
1257 == (ppc_cpu
& PPC_OPCODE_POWER4
))))
1261 retval
= hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1264 /* Ignore Power duplicates for -m601. */
1265 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1266 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1269 as_bad (_("Internal assembler error for instruction %s"),
1276 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1277 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1278 hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1280 /* Insert the macros into a hash table. */
1281 ppc_macro_hash
= hash_new ();
1283 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1284 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1286 if ((macro
->flags
& ppc_cpu
) != 0)
1290 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (PTR
) macro
);
1291 if (retval
!= (const char *) NULL
)
1293 as_bad (_("Internal assembler error for macro %s"), macro
->name
);
1303 /* This function is called when the assembler starts up. It is called
1304 after the options have been parsed and the output file has been
1312 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1315 /* Set the ELF flags if desired. */
1316 if (ppc_flags
&& !msolaris
)
1317 bfd_set_private_flags (stdoutput
, ppc_flags
);
1320 ppc_setup_opcodes ();
1322 /* Tell the main code what the endianness is if it is not overridden
1324 if (!set_target_endian
)
1326 set_target_endian
= 1;
1327 target_big_endian
= PPC_BIG_ENDIAN
;
1331 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1333 /* Create dummy symbols to serve as initial csects. This forces the
1334 text csects to precede the data csects. These symbols will not
1336 ppc_text_csects
= symbol_make ("dummy\001");
1337 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1338 ppc_data_csects
= symbol_make ("dummy\001");
1339 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1344 ppc_current_section
= text_section
;
1345 ppc_previous_section
= 0;
1354 if (ppc_apuinfo_list
== NULL
)
1357 /* Ok, so write the section info out. We have this layout:
1361 0 8 length of "APUinfo\0"
1362 4 (n*4) number of APU's (4 bytes each)
1365 20 APU#1 first APU's info
1366 24 APU#2 second APU's info
1371 asection
*seg
= now_seg
;
1372 subsegT subseg
= now_subseg
;
1373 asection
*apuinfo_secp
= (asection
*) NULL
;
1376 /* Create the .PPC.EMB.apuinfo section. */
1377 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1378 bfd_set_section_flags (stdoutput
,
1380 SEC_HAS_CONTENTS
| SEC_READONLY
);
1383 md_number_to_chars (p
, (valueT
) 8, 4);
1386 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1389 md_number_to_chars (p
, (valueT
) 2, 4);
1392 strcpy (p
, "APUinfo");
1394 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1397 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1400 frag_align (2, 0, 0);
1402 /* We probably can't restore the current segment, for there likely
1405 subseg_set (seg
, subseg
);
1410 /* Insert an operand value into an instruction. */
1412 static unsigned long
1413 ppc_insert_operand (insn
, operand
, val
, file
, line
)
1415 const struct powerpc_operand
*operand
;
1420 if (operand
->bits
!= 32)
1425 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1427 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1428 max
= (1 << operand
->bits
) - 1;
1430 max
= (1 << (operand
->bits
- 1)) - 1;
1431 min
= - (1 << (operand
->bits
- 1));
1435 /* Some people write 32 bit hex constants with the sign
1436 extension done by hand. This shouldn't really be
1437 valid, but, to permit this code to assemble on a 64
1438 bit host, we sign extend the 32 bit value. */
1440 && (val
& (offsetT
) 0x80000000) != 0
1441 && (val
& (offsetT
) 0xffffffff) == val
)
1450 max
= (1 << operand
->bits
) - 1;
1454 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1459 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
1462 _("operand out of range (%s not between %ld and %ld)");
1465 sprint_value (buf
, test
);
1466 as_bad_where (file
, line
, err
, buf
, min
, max
);
1470 if (operand
->insert
)
1475 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1476 if (errmsg
!= (const char *) NULL
)
1477 as_bad_where (file
, line
, errmsg
);
1480 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1488 /* Parse @got, etc. and return the desired relocation. */
1489 static bfd_reloc_code_real_type
1490 ppc_elf_suffix (str_p
, exp_p
)
1505 const struct map_bfd
*ptr
;
1507 #define MAP(str,reloc) { str, sizeof (str)-1, reloc }
1509 static const struct map_bfd mapping
[] = {
1510 MAP ("l", (int) BFD_RELOC_LO16
),
1511 MAP ("h", (int) BFD_RELOC_HI16
),
1512 MAP ("ha", (int) BFD_RELOC_HI16_S
),
1513 MAP ("brtaken", (int) BFD_RELOC_PPC_B16_BRTAKEN
),
1514 MAP ("brntaken", (int) BFD_RELOC_PPC_B16_BRNTAKEN
),
1515 MAP ("got", (int) BFD_RELOC_16_GOTOFF
),
1516 MAP ("got@l", (int) BFD_RELOC_LO16_GOTOFF
),
1517 MAP ("got@h", (int) BFD_RELOC_HI16_GOTOFF
),
1518 MAP ("got@ha", (int) BFD_RELOC_HI16_S_GOTOFF
),
1519 MAP ("fixup", (int) BFD_RELOC_CTOR
),
1520 MAP ("plt", (int) BFD_RELOC_24_PLT_PCREL
),
1521 MAP ("pltrel24", (int) BFD_RELOC_24_PLT_PCREL
),
1522 MAP ("copy", (int) BFD_RELOC_PPC_COPY
),
1523 MAP ("globdat", (int) BFD_RELOC_PPC_GLOB_DAT
),
1524 MAP ("local24pc", (int) BFD_RELOC_PPC_LOCAL24PC
),
1525 MAP ("local", (int) BFD_RELOC_PPC_LOCAL24PC
),
1526 MAP ("pltrel", (int) BFD_RELOC_32_PLT_PCREL
),
1527 MAP ("plt@l", (int) BFD_RELOC_LO16_PLTOFF
),
1528 MAP ("plt@h", (int) BFD_RELOC_HI16_PLTOFF
),
1529 MAP ("plt@ha", (int) BFD_RELOC_HI16_S_PLTOFF
),
1530 MAP ("sdarel", (int) BFD_RELOC_GPREL16
),
1531 MAP ("sectoff", (int) BFD_RELOC_16_BASEREL
),
1532 MAP ("sectoff@l", (int) BFD_RELOC_LO16_BASEREL
),
1533 MAP ("sectoff@h", (int) BFD_RELOC_HI16_BASEREL
),
1534 MAP ("sectoff@ha", (int) BFD_RELOC_HI16_S_BASEREL
),
1535 MAP ("naddr", (int) BFD_RELOC_PPC_EMB_NADDR32
),
1536 MAP ("naddr16", (int) BFD_RELOC_PPC_EMB_NADDR16
),
1537 MAP ("naddr@l", (int) BFD_RELOC_PPC_EMB_NADDR16_LO
),
1538 MAP ("naddr@h", (int) BFD_RELOC_PPC_EMB_NADDR16_HI
),
1539 MAP ("naddr@ha", (int) BFD_RELOC_PPC_EMB_NADDR16_HA
),
1540 MAP ("sdai16", (int) BFD_RELOC_PPC_EMB_SDAI16
),
1541 MAP ("sda2rel", (int) BFD_RELOC_PPC_EMB_SDA2REL
),
1542 MAP ("sda2i16", (int) BFD_RELOC_PPC_EMB_SDA2I16
),
1543 MAP ("sda21", (int) BFD_RELOC_PPC_EMB_SDA21
),
1544 MAP ("mrkref", (int) BFD_RELOC_PPC_EMB_MRKREF
),
1545 MAP ("relsect", (int) BFD_RELOC_PPC_EMB_RELSEC16
),
1546 MAP ("relsect@l", (int) BFD_RELOC_PPC_EMB_RELST_LO
),
1547 MAP ("relsect@h", (int) BFD_RELOC_PPC_EMB_RELST_HI
),
1548 MAP ("relsect@ha", (int) BFD_RELOC_PPC_EMB_RELST_HA
),
1549 MAP ("bitfld", (int) BFD_RELOC_PPC_EMB_BIT_FLD
),
1550 MAP ("relsda", (int) BFD_RELOC_PPC_EMB_RELSDA
),
1551 MAP ("xgot", (int) BFD_RELOC_PPC_TOC16
),
1552 MAP ("tls", (int) BFD_RELOC_PPC_TLS
),
1553 MAP ("dtpmod", (int) BFD_RELOC_PPC_DTPMOD
),
1554 MAP ("dtprel", (int) BFD_RELOC_PPC_DTPREL
),
1555 MAP ("dtprel@l", (int) BFD_RELOC_PPC_DTPREL16_LO
),
1556 MAP ("dtprel@h", (int) BFD_RELOC_PPC_DTPREL16_HI
),
1557 MAP ("dtprel@ha", (int) BFD_RELOC_PPC_DTPREL16_HA
),
1558 MAP ("tprel", (int) BFD_RELOC_PPC_TPREL
),
1559 MAP ("tprel@l", (int) BFD_RELOC_PPC_TPREL16_LO
),
1560 MAP ("tprel@h", (int) BFD_RELOC_PPC_TPREL16_HI
),
1561 MAP ("tprel@ha", (int) BFD_RELOC_PPC_TPREL16_HA
),
1562 MAP ("got@tlsgd", (int) BFD_RELOC_PPC_GOT_TLSGD16
),
1563 MAP ("got@tlsgd@l", (int) BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1564 MAP ("got@tlsgd@h", (int) BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1565 MAP ("got@tlsgd@ha", (int) BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1566 MAP ("got@tlsld", (int) BFD_RELOC_PPC_GOT_TLSLD16
),
1567 MAP ("got@tlsld@l", (int) BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1568 MAP ("got@tlsld@h", (int) BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1569 MAP ("got@tlsld@ha", (int) BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1570 MAP ("got@dtprel", (int) BFD_RELOC_PPC_GOT_DTPREL16
),
1571 MAP ("got@dtprel@l", (int) BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1572 MAP ("got@dtprel@h", (int) BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1573 MAP ("got@dtprel@ha", (int) BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1574 MAP ("got@tprel", (int) BFD_RELOC_PPC_GOT_TPREL16
),
1575 MAP ("got@tprel@l", (int) BFD_RELOC_PPC_GOT_TPREL16_LO
),
1576 MAP ("got@tprel@h", (int) BFD_RELOC_PPC_GOT_TPREL16_HI
),
1577 MAP ("got@tprel@ha", (int) BFD_RELOC_PPC_GOT_TPREL16_HA
),
1578 /* The following are only valid for ppc64. Negative values are
1579 used instead of a flag. */
1580 MAP ("higher", - (int) BFD_RELOC_PPC64_HIGHER
),
1581 MAP ("highera", - (int) BFD_RELOC_PPC64_HIGHER_S
),
1582 MAP ("highest", - (int) BFD_RELOC_PPC64_HIGHEST
),
1583 MAP ("highesta", - (int) BFD_RELOC_PPC64_HIGHEST_S
),
1584 MAP ("tocbase", - (int) BFD_RELOC_PPC64_TOC
),
1585 MAP ("toc", - (int) BFD_RELOC_PPC_TOC16
),
1586 MAP ("toc@l", - (int) BFD_RELOC_PPC64_TOC16_LO
),
1587 MAP ("toc@h", - (int) BFD_RELOC_PPC64_TOC16_HI
),
1588 MAP ("toc@ha", - (int) BFD_RELOC_PPC64_TOC16_HA
),
1589 MAP ("dtprel@higher", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1590 MAP ("dtprel@highera", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1591 MAP ("dtprel@highest", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1592 MAP ("dtprel@highesta", - (int) BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1593 MAP ("tprel@higher", - (int) BFD_RELOC_PPC64_TPREL16_HIGHER
),
1594 MAP ("tprel@highera", - (int) BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1595 MAP ("tprel@highest", - (int) BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1596 MAP ("tprel@highesta", - (int) BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1597 { (char *) 0, 0, (int) BFD_RELOC_UNUSED
}
1601 return BFD_RELOC_UNUSED
;
1603 for (ch
= *str
, str2
= ident
;
1604 (str2
< ident
+ sizeof (ident
) - 1
1605 && (ISALNUM (ch
) || ch
== '@'));
1608 *str2
++ = TOLOWER (ch
);
1615 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1616 if (ch
== ptr
->string
[0]
1617 && len
== ptr
->length
1618 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0)
1620 int reloc
= ptr
->reloc
;
1625 return BFD_RELOC_UNUSED
;
1630 if (exp_p
->X_add_number
!= 0
1631 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1632 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1633 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1634 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1635 as_warn (_("identifier+constant@got means identifier@got+constant"));
1637 /* Now check for identifier@suffix+constant. */
1638 if (*str
== '-' || *str
== '+')
1640 char *orig_line
= input_line_pointer
;
1641 expressionS new_exp
;
1643 input_line_pointer
= str
;
1644 expression (&new_exp
);
1645 if (new_exp
.X_op
== O_constant
)
1647 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1648 str
= input_line_pointer
;
1651 if (&input_line_pointer
!= str_p
)
1652 input_line_pointer
= orig_line
;
1656 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1657 && exp_p
->X_op
== O_symbol
1658 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1660 /* Change the symbol so that the dummy .TOC. symbol can be
1661 omitted from the object file. */
1662 exp_p
->X_add_symbol
= &abs_symbol
;
1665 return (bfd_reloc_code_real_type
) reloc
;
1668 return BFD_RELOC_UNUSED
;
1671 /* Like normal .long/.short/.word, except support @got, etc.
1672 Clobbers input_line_pointer, checks end-of-line. */
1674 ppc_elf_cons (nbytes
)
1675 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1678 bfd_reloc_code_real_type reloc
;
1680 if (is_it_end_of_statement ())
1682 demand_empty_rest_of_line ();
1689 if (exp
.X_op
== O_symbol
1690 && *input_line_pointer
== '@'
1691 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1692 &exp
)) != BFD_RELOC_UNUSED
)
1694 reloc_howto_type
*reloc_howto
;
1697 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1698 size
= bfd_get_reloc_size (reloc_howto
);
1702 as_bad (_("%s relocations do not fit in %d bytes\n"),
1703 reloc_howto
->name
, nbytes
);
1710 p
= frag_more (nbytes
);
1712 if (target_big_endian
)
1713 offset
= nbytes
- size
;
1714 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1719 emit_expr (&exp
, (unsigned int) nbytes
);
1721 while (*input_line_pointer
++ == ',');
1723 /* Put terminator back into stream. */
1724 input_line_pointer
--;
1725 demand_empty_rest_of_line ();
1728 /* Solaris pseduo op to change to the .rodata section. */
1733 char *save_line
= input_line_pointer
;
1734 static char section
[] = ".rodata\n";
1736 /* Just pretend this is .section .rodata */
1737 input_line_pointer
= section
;
1738 obj_elf_section (xxx
);
1740 input_line_pointer
= save_line
;
1743 /* Pseudo op to make file scope bss items. */
1746 int xxx ATTRIBUTE_UNUSED
;
1748 register char *name
;
1752 register symbolS
*symbolP
;
1759 name
= input_line_pointer
;
1760 c
= get_symbol_end ();
1762 /* just after name is now '\0'. */
1763 p
= input_line_pointer
;
1766 if (*input_line_pointer
!= ',')
1768 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1769 ignore_rest_of_line ();
1773 input_line_pointer
++; /* skip ',' */
1774 if ((size
= get_absolute_expression ()) < 0)
1776 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1777 ignore_rest_of_line ();
1781 /* The third argument to .lcomm is the alignment. */
1782 if (*input_line_pointer
!= ',')
1786 ++input_line_pointer
;
1787 align
= get_absolute_expression ();
1790 as_warn (_("ignoring bad alignment"));
1796 symbolP
= symbol_find_or_make (name
);
1799 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1801 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1802 S_GET_NAME (symbolP
));
1803 ignore_rest_of_line ();
1807 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1809 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1810 S_GET_NAME (symbolP
),
1811 (long) S_GET_VALUE (symbolP
),
1814 ignore_rest_of_line ();
1820 old_subsec
= now_subseg
;
1823 /* Convert to a power of 2 alignment. */
1824 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1827 as_bad (_("Common alignment not a power of 2"));
1828 ignore_rest_of_line ();
1835 record_alignment (bss_section
, align2
);
1836 subseg_set (bss_section
, 0);
1838 frag_align (align2
, 0, 0);
1839 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1840 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1841 symbol_set_frag (symbolP
, frag_now
);
1842 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1845 S_SET_SIZE (symbolP
, size
);
1846 S_SET_SEGMENT (symbolP
, bss_section
);
1847 subseg_set (old_sec
, old_subsec
);
1848 demand_empty_rest_of_line ();
1851 /* Validate any relocations emitted for -mrelocatable, possibly adding
1852 fixups for word relocations in writable segments, so we can adjust
1855 ppc_elf_validate_fix (fixp
, seg
)
1859 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1868 case SHLIB_MRELOCATABLE
:
1869 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1870 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1871 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1872 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1873 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1874 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1875 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1876 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1877 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1878 && (seg
->flags
& SEC_LOAD
) != 0
1879 && strcmp (segment_name (seg
), ".got2") != 0
1880 && strcmp (segment_name (seg
), ".dtors") != 0
1881 && strcmp (segment_name (seg
), ".ctors") != 0
1882 && strcmp (segment_name (seg
), ".fixup") != 0
1883 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1884 && strcmp (segment_name (seg
), ".eh_frame") != 0
1885 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1887 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1888 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1890 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1891 _("Relocation cannot be done when using -mrelocatable"));
1898 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1899 function descriptor sym if the corresponding code sym is used. */
1902 ppc_frob_file_before_adjust ()
1909 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1916 name
= S_GET_NAME (symp
);
1920 if (! S_IS_WEAK (symp
)
1921 || S_IS_DEFINED (symp
))
1924 len
= strlen (name
) + 1;
1925 dotname
= xmalloc (len
+ 1);
1927 memcpy (dotname
+ 1, name
, len
);
1928 dotsym
= symbol_find (dotname
);
1930 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1931 || symbol_used_in_reloc_p (dotsym
)))
1933 symbol_mark_used (symp
);
1937 /* Don't emit .TOC. symbol. */
1938 symp
= symbol_find (".TOC.");
1940 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1942 #endif /* OBJ_ELF */
1947 * Summary of parse_toc_entry.
1949 * in: Input_line_pointer points to the '[' in one of:
1951 * [toc] [tocv] [toc32] [toc64]
1953 * Anything else is an error of one kind or another.
1956 * return value: success or failure
1957 * toc_kind: kind of toc reference
1958 * input_line_pointer:
1959 * success: first char after the ']'
1960 * failure: unchanged
1964 * [toc] - rv == success, toc_kind = default_toc
1965 * [tocv] - rv == success, toc_kind = data_in_toc
1966 * [toc32] - rv == success, toc_kind = must_be_32
1967 * [toc64] - rv == success, toc_kind = must_be_64
1971 enum toc_size_qualifier
1973 default_toc
, /* The toc cell constructed should be the system default size */
1974 data_in_toc
, /* This is a direct reference to a toc cell */
1975 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1976 must_be_64
/* The toc cell constructed must be 64 bits wide */
1980 parse_toc_entry (toc_kind
)
1981 enum toc_size_qualifier
*toc_kind
;
1986 enum toc_size_qualifier t
;
1988 /* Save the input_line_pointer. */
1989 start
= input_line_pointer
;
1991 /* Skip over the '[' , and whitespace. */
1992 ++input_line_pointer
;
1995 /* Find the spelling of the operand. */
1996 toc_spec
= input_line_pointer
;
1997 c
= get_symbol_end ();
1999 if (strcmp (toc_spec
, "toc") == 0)
2003 else if (strcmp (toc_spec
, "tocv") == 0)
2007 else if (strcmp (toc_spec
, "toc32") == 0)
2011 else if (strcmp (toc_spec
, "toc64") == 0)
2017 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2018 *input_line_pointer
= c
;
2019 input_line_pointer
= start
;
2023 /* Now find the ']'. */
2024 *input_line_pointer
= c
;
2026 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2027 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2031 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2032 input_line_pointer
= start
;
2043 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2045 ppc_apuinfo_section_add (apu
, version
)
2046 unsigned int apu
, version
;
2050 /* Check we don't already exist. */
2051 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2052 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2055 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2057 if (ppc_apuinfo_num_alloc
== 0)
2059 ppc_apuinfo_num_alloc
= 4;
2060 ppc_apuinfo_list
= (unsigned long *)
2061 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2065 ppc_apuinfo_num_alloc
+= 4;
2066 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2067 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2070 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2076 /* We need to keep a list of fixups. We can't simply generate them as
2077 we go, because that would require us to first create the frag, and
2078 that would screw up references to ``.''. */
2084 bfd_reloc_code_real_type reloc
;
2087 #define MAX_INSN_FIXUPS (5)
2089 /* This routine is called for each instruction to be assembled. */
2096 const struct powerpc_opcode
*opcode
;
2098 const unsigned char *opindex_ptr
;
2102 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2107 bfd_reloc_code_real_type reloc
;
2110 /* Get the opcode. */
2111 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2116 /* Look up the opcode in the hash table. */
2117 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2118 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2120 const struct powerpc_macro
*macro
;
2122 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2123 if (macro
== (const struct powerpc_macro
*) NULL
)
2124 as_bad (_("Unrecognized opcode: `%s'"), str
);
2126 ppc_macro (s
, macro
);
2131 insn
= opcode
->opcode
;
2134 while (ISSPACE (*str
))
2137 /* PowerPC operands are just expressions. The only real issue is
2138 that a few operand types are optional. All cases which might use
2139 an optional operand separate the operands only with commas (in
2140 some cases parentheses are used, as in ``lwz 1,0(1)'' but such
2141 cases never have optional operands). There is never more than
2142 one optional operand for an instruction. So, before we start
2143 seriously parsing the operands, we check to see if we have an
2144 optional operand, and, if we do, we count the number of commas to
2145 see whether the operand should be omitted. */
2147 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2149 const struct powerpc_operand
*operand
;
2151 operand
= &powerpc_operands
[*opindex_ptr
];
2152 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2154 unsigned int opcount
;
2155 unsigned int num_operands_expected
;
2158 /* There is an optional operand. Count the number of
2159 commas in the input line. */
2166 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2173 /* Compute the number of expected operands.
2174 Do not count fake operands. */
2175 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2176 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2177 ++ num_operands_expected
;
2179 /* If there are fewer operands in the line then are called
2180 for by the instruction, we want to skip the optional
2182 if (opcount
< num_operands_expected
)
2189 /* Gather the operands. */
2193 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2195 const struct powerpc_operand
*operand
;
2201 if (next_opindex
== 0)
2202 operand
= &powerpc_operands
[*opindex_ptr
];
2205 operand
= &powerpc_operands
[next_opindex
];
2210 /* If this is a fake operand, then we do not expect anything
2212 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2214 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2215 if (errmsg
!= (const char *) NULL
)
2220 /* If this is an optional operand, and we are skipping it, just
2222 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2225 if (operand
->insert
)
2227 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2228 if (errmsg
!= (const char *) NULL
)
2231 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2232 next_opindex
= *opindex_ptr
+ 1;
2236 /* Gather the operand. */
2237 hold
= input_line_pointer
;
2238 input_line_pointer
= str
;
2241 if (*input_line_pointer
== '[')
2243 /* We are expecting something like the second argument here:
2245 * lwz r4,[toc].GS.0.static_int(rtoc)
2246 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2247 * The argument following the `]' must be a symbol name, and the
2248 * register must be the toc register: 'rtoc' or '2'
2250 * The effect is to 0 as the displacement field
2251 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2252 * the appropriate variation) reloc against it based on the symbol.
2253 * The linker will build the toc, and insert the resolved toc offset.
2256 * o The size of the toc entry is currently assumed to be
2257 * 32 bits. This should not be assumed to be a hard coded
2259 * o In an effort to cope with a change from 32 to 64 bits,
2260 * there are also toc entries that are specified to be
2261 * either 32 or 64 bits:
2262 * lwz r4,[toc32].GS.0.static_int(rtoc)
2263 * lwz r4,[toc64].GS.0.static_int(rtoc)
2264 * These demand toc entries of the specified size, and the
2265 * instruction probably requires it.
2269 enum toc_size_qualifier toc_kind
;
2270 bfd_reloc_code_real_type toc_reloc
;
2272 /* Go parse off the [tocXX] part. */
2273 valid_toc
= parse_toc_entry (&toc_kind
);
2277 /* Note: message has already been issued.
2278 FIXME: what sort of recovery should we do?
2279 demand_rest_of_line (); return; ? */
2282 /* Now get the symbol following the ']'. */
2288 /* In this case, we may not have seen the symbol yet,
2289 since it is allowed to appear on a .extern or .globl
2290 or just be a label in the .data section. */
2291 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2294 /* 1. The symbol must be defined and either in the toc
2295 section, or a global.
2296 2. The reloc generated must have the TOCDEFN flag set
2297 in upper bit mess of the reloc type.
2298 FIXME: It's a little confusing what the tocv
2299 qualifier can be used for. At the very least, I've
2300 seen three uses, only one of which I'm sure I can
2302 if (ex
.X_op
== O_symbol
)
2304 assert (ex
.X_add_symbol
!= NULL
);
2305 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2308 as_bad (_("[tocv] symbol is not a toc symbol"));
2312 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2315 /* FIXME: these next two specifically specify 32/64 bit
2316 toc entries. We don't support them today. Is this
2317 the right way to say that? */
2318 toc_reloc
= BFD_RELOC_UNUSED
;
2319 as_bad (_("Unimplemented toc32 expression modifier"));
2322 /* FIXME: see above. */
2323 toc_reloc
= BFD_RELOC_UNUSED
;
2324 as_bad (_("Unimplemented toc64 expression modifier"));
2328 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2334 /* We need to generate a fixup for this expression. */
2335 if (fc
>= MAX_INSN_FIXUPS
)
2336 as_fatal (_("too many fixups"));
2338 fixups
[fc
].reloc
= toc_reloc
;
2339 fixups
[fc
].exp
= ex
;
2340 fixups
[fc
].opindex
= *opindex_ptr
;
2343 /* Ok. We've set up the fixup for the instruction. Now make it
2344 look like the constant 0 was found here. */
2346 ex
.X_op
= O_constant
;
2347 ex
.X_add_number
= 0;
2348 ex
.X_add_symbol
= NULL
;
2349 ex
.X_op_symbol
= NULL
;
2355 if (! register_name (&ex
))
2357 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2364 str
= input_line_pointer
;
2365 input_line_pointer
= hold
;
2367 if (ex
.X_op
== O_illegal
)
2368 as_bad (_("illegal operand"));
2369 else if (ex
.X_op
== O_absent
)
2370 as_bad (_("missing operand"));
2371 else if (ex
.X_op
== O_register
)
2373 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2376 else if (ex
.X_op
== O_constant
)
2379 /* Allow @HA, @L, @H on constants. */
2380 char *orig_str
= str
;
2382 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2389 case BFD_RELOC_LO16
:
2390 /* X_unsigned is the default, so if the user has done
2391 something which cleared it, we always produce a
2393 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2394 ex
.X_add_number
&= 0xffff;
2396 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2399 case BFD_RELOC_HI16
:
2400 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2401 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2403 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2406 case BFD_RELOC_HI16_S
:
2407 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2408 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2410 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2413 case BFD_RELOC_PPC64_HIGHER
:
2414 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2415 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2417 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2420 case BFD_RELOC_PPC64_HIGHER_S
:
2421 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2422 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2424 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2427 case BFD_RELOC_PPC64_HIGHEST
:
2428 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2429 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2431 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2434 case BFD_RELOC_PPC64_HIGHEST_S
:
2435 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2436 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2438 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2441 #endif /* OBJ_ELF */
2442 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2446 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2448 /* Some TLS tweaks. */
2453 case BFD_RELOC_PPC_TLS
:
2454 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2457 /* We'll only use the 32 (or 64) bit form of these relocations
2458 in constants. Instructions get the 16 bit form. */
2459 case BFD_RELOC_PPC_DTPREL
:
2460 reloc
= BFD_RELOC_PPC_DTPREL16
;
2462 case BFD_RELOC_PPC_TPREL
:
2463 reloc
= BFD_RELOC_PPC_TPREL16
;
2467 /* For the absolute forms of branches, convert the PC
2468 relative form back into the absolute. */
2469 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2473 case BFD_RELOC_PPC_B26
:
2474 reloc
= BFD_RELOC_PPC_BA26
;
2476 case BFD_RELOC_PPC_B16
:
2477 reloc
= BFD_RELOC_PPC_BA16
;
2479 case BFD_RELOC_PPC_B16_BRTAKEN
:
2480 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2482 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2483 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2491 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2496 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2498 case BFD_RELOC_LO16
:
2499 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2501 case BFD_RELOC_16_GOTOFF
:
2502 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2504 case BFD_RELOC_LO16_GOTOFF
:
2505 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2507 case BFD_RELOC_LO16_PLTOFF
:
2508 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2510 case BFD_RELOC_16_BASEREL
:
2511 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2513 case BFD_RELOC_LO16_BASEREL
:
2514 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2516 case BFD_RELOC_PPC_TOC16
:
2517 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2519 case BFD_RELOC_PPC64_TOC16_LO
:
2520 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2522 case BFD_RELOC_PPC64_PLTGOT16
:
2523 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2525 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2526 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2528 case BFD_RELOC_PPC_DTPREL16
:
2529 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2531 case BFD_RELOC_PPC_DTPREL16_LO
:
2532 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2534 case BFD_RELOC_PPC_TPREL16
:
2535 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2537 case BFD_RELOC_PPC_TPREL16_LO
:
2538 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2540 case BFD_RELOC_PPC_GOT_DTPREL16
:
2541 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2542 case BFD_RELOC_PPC_GOT_TPREL16
:
2543 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2546 as_bad (_("unsupported relocation for DS offset field"));
2551 /* We need to generate a fixup for this expression. */
2552 if (fc
>= MAX_INSN_FIXUPS
)
2553 as_fatal (_("too many fixups"));
2554 fixups
[fc
].exp
= ex
;
2555 fixups
[fc
].opindex
= 0;
2556 fixups
[fc
].reloc
= reloc
;
2559 #endif /* OBJ_ELF */
2563 /* We need to generate a fixup for this expression. */
2564 if (fc
>= MAX_INSN_FIXUPS
)
2565 as_fatal (_("too many fixups"));
2566 fixups
[fc
].exp
= ex
;
2567 fixups
[fc
].opindex
= *opindex_ptr
;
2568 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2577 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2585 /* The call to expression should have advanced str past any
2588 && (endc
!= ',' || *str
!= '\0'))
2590 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2598 while (ISSPACE (*str
))
2602 as_bad (_("junk at end of line: `%s'"), str
);
2605 /* Do we need/want a APUinfo section? */
2606 if (ppc_cpu
& (PPC_OPCODE_SPE
2607 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2608 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2609 | PPC_OPCODE_RFMCI
))
2611 /* These are all version "1". */
2612 if (opcode
->flags
& PPC_OPCODE_SPE
)
2613 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2614 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2615 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2616 if (opcode
->flags
& PPC_OPCODE_EFS
)
2617 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2618 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2619 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2620 if (opcode
->flags
& PPC_OPCODE_PMR
)
2621 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2622 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2623 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2624 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2625 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2629 /* Write out the instruction. */
2631 md_number_to_chars (f
, insn
, 4);
2634 dwarf2_emit_insn (4);
2637 /* Create any fixups. At this point we do not use a
2638 bfd_reloc_code_real_type, but instead just use the
2639 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2640 handle fixups for any operand type, although that is admittedly
2641 not a very exciting feature. We pick a BFD reloc type in
2643 for (i
= 0; i
< fc
; i
++)
2645 const struct powerpc_operand
*operand
;
2647 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2648 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2650 reloc_howto_type
*reloc_howto
;
2655 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2659 size
= bfd_get_reloc_size (reloc_howto
);
2660 offset
= target_big_endian
? (4 - size
) : 0;
2662 if (size
< 1 || size
> 4)
2665 fixP
= fix_new_exp (frag_now
,
2666 f
- frag_now
->fr_literal
+ offset
,
2669 reloc_howto
->pc_relative
,
2672 /* Turn off complaints that the addend is too large for things like
2674 switch (fixups
[i
].reloc
)
2676 case BFD_RELOC_16_GOTOFF
:
2677 case BFD_RELOC_PPC_TOC16
:
2678 case BFD_RELOC_LO16
:
2679 case BFD_RELOC_HI16
:
2680 case BFD_RELOC_HI16_S
:
2682 case BFD_RELOC_PPC64_HIGHER
:
2683 case BFD_RELOC_PPC64_HIGHER_S
:
2684 case BFD_RELOC_PPC64_HIGHEST
:
2685 case BFD_RELOC_PPC64_HIGHEST_S
:
2687 fixP
->fx_no_overflow
= 1;
2694 fix_new_exp (frag_now
,
2695 f
- frag_now
->fr_literal
,
2698 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2699 ((bfd_reloc_code_real_type
)
2700 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2704 /* Handle a macro. Gather all the operands, transform them as
2705 described by the macro, and call md_assemble recursively. All the
2706 operands are separated by commas; we don't accept parentheses
2707 around operands here. */
2710 ppc_macro (str
, macro
)
2712 const struct powerpc_macro
*macro
;
2723 /* Gather the users operands into the operands array. */
2728 if (count
>= sizeof operands
/ sizeof operands
[0])
2730 operands
[count
++] = s
;
2731 s
= strchr (s
, ',');
2732 if (s
== (char *) NULL
)
2737 if (count
!= macro
->operands
)
2739 as_bad (_("wrong number of operands"));
2743 /* Work out how large the string must be (the size is unbounded
2744 because it includes user input). */
2746 format
= macro
->format
;
2747 while (*format
!= '\0')
2756 arg
= strtol (format
+ 1, &send
, 10);
2757 know (send
!= format
&& arg
>= 0 && arg
< count
);
2758 len
+= strlen (operands
[arg
]);
2763 /* Put the string together. */
2764 complete
= s
= (char *) alloca (len
+ 1);
2765 format
= macro
->format
;
2766 while (*format
!= '\0')
2772 arg
= strtol (format
+ 1, &send
, 10);
2773 strcpy (s
, operands
[arg
]);
2780 /* Assemble the constructed instruction. */
2781 md_assemble (complete
);
2785 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2788 ppc_section_letter (letter
, ptr_msg
)
2795 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2800 ppc_section_word (str
, len
)
2804 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2811 ppc_section_type (str
, len
)
2815 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2822 ppc_section_flags (flags
, attr
, type
)
2827 if (type
== SHT_ORDERED
)
2828 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2830 if (attr
& SHF_EXCLUDE
)
2831 flags
|= SEC_EXCLUDE
;
2835 #endif /* OBJ_ELF */
2838 /* Pseudo-op handling. */
2840 /* The .byte pseudo-op. This is similar to the normal .byte
2841 pseudo-op, but it can also take a single ASCII string. */
2845 int ignore ATTRIBUTE_UNUSED
;
2847 if (*input_line_pointer
!= '\"')
2853 /* Gather characters. A real double quote is doubled. Unusual
2854 characters are not permitted. */
2855 ++input_line_pointer
;
2860 c
= *input_line_pointer
++;
2864 if (*input_line_pointer
!= '\"')
2866 ++input_line_pointer
;
2869 FRAG_APPEND_1_CHAR (c
);
2872 demand_empty_rest_of_line ();
2877 /* XCOFF specific pseudo-op handling. */
2879 /* This is set if we are creating a .stabx symbol, since we don't want
2880 to handle symbol suffixes for such symbols. */
2881 static bfd_boolean ppc_stab_symbol
;
2883 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2884 symbols in the .bss segment as though they were local common
2885 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2886 aligns .comm and .lcomm to 4 bytes. */
2892 asection
*current_seg
= now_seg
;
2893 subsegT current_subseg
= now_subseg
;
2899 symbolS
*lcomm_sym
= NULL
;
2903 name
= input_line_pointer
;
2904 endc
= get_symbol_end ();
2905 end_name
= input_line_pointer
;
2908 if (*input_line_pointer
!= ',')
2910 as_bad (_("missing size"));
2911 ignore_rest_of_line ();
2914 ++input_line_pointer
;
2916 size
= get_absolute_expression ();
2919 as_bad (_("negative size"));
2920 ignore_rest_of_line ();
2926 /* The third argument to .comm is the alignment. */
2927 if (*input_line_pointer
!= ',')
2931 ++input_line_pointer
;
2932 align
= get_absolute_expression ();
2935 as_warn (_("ignoring bad alignment"));
2950 /* The third argument to .lcomm appears to be the real local
2951 common symbol to create. References to the symbol named in
2952 the first argument are turned into references to the third
2954 if (*input_line_pointer
!= ',')
2956 as_bad (_("missing real symbol name"));
2957 ignore_rest_of_line ();
2960 ++input_line_pointer
;
2962 lcomm_name
= input_line_pointer
;
2963 lcomm_endc
= get_symbol_end ();
2965 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2967 *input_line_pointer
= lcomm_endc
;
2971 sym
= symbol_find_or_make (name
);
2974 if (S_IS_DEFINED (sym
)
2975 || S_GET_VALUE (sym
) != 0)
2977 as_bad (_("attempt to redefine symbol"));
2978 ignore_rest_of_line ();
2982 record_alignment (bss_section
, align
);
2985 || ! S_IS_DEFINED (lcomm_sym
))
2994 S_SET_EXTERNAL (sym
);
2998 symbol_get_tc (lcomm_sym
)->output
= 1;
2999 def_sym
= lcomm_sym
;
3003 subseg_set (bss_section
, 1);
3004 frag_align (align
, 0, 0);
3006 symbol_set_frag (def_sym
, frag_now
);
3007 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3008 def_size
, (char *) NULL
);
3010 S_SET_SEGMENT (def_sym
, bss_section
);
3011 symbol_get_tc (def_sym
)->align
= align
;
3015 /* Align the size of lcomm_sym. */
3016 symbol_get_frag (lcomm_sym
)->fr_offset
=
3017 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3018 &~ ((1 << align
) - 1));
3019 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3020 symbol_get_tc (lcomm_sym
)->align
= align
;
3025 /* Make sym an offset from lcomm_sym. */
3026 S_SET_SEGMENT (sym
, bss_section
);
3027 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3028 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3029 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3032 subseg_set (current_seg
, current_subseg
);
3034 demand_empty_rest_of_line ();
3037 /* The .csect pseudo-op. This switches us into a different
3038 subsegment. The first argument is a symbol whose value is the
3039 start of the .csect. In COFF, csect symbols get special aux
3040 entries defined by the x_csect field of union internal_auxent. The
3041 optional second argument is the alignment (the default is 2). */
3045 int ignore ATTRIBUTE_UNUSED
;
3052 name
= input_line_pointer
;
3053 endc
= get_symbol_end ();
3055 sym
= symbol_find_or_make (name
);
3057 *input_line_pointer
= endc
;
3059 if (S_GET_NAME (sym
)[0] == '\0')
3061 /* An unnamed csect is assumed to be [PR]. */
3062 symbol_get_tc (sym
)->class = XMC_PR
;
3066 if (*input_line_pointer
== ',')
3068 ++input_line_pointer
;
3069 align
= get_absolute_expression ();
3072 ppc_change_csect (sym
, align
);
3074 demand_empty_rest_of_line ();
3077 /* Change to a different csect. */
3080 ppc_change_csect (sym
, align
)
3084 if (S_IS_DEFINED (sym
))
3085 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3095 /* This is a new csect. We need to look at the symbol class to
3096 figure out whether it should go in the text section or the
3100 switch (symbol_get_tc (sym
)->class)
3110 S_SET_SEGMENT (sym
, text_section
);
3111 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3112 ++ppc_text_subsegment
;
3113 list_ptr
= &ppc_text_csects
;
3123 if (ppc_toc_csect
!= NULL
3124 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3125 == ppc_data_subsegment
))
3127 S_SET_SEGMENT (sym
, data_section
);
3128 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3129 ++ppc_data_subsegment
;
3130 list_ptr
= &ppc_data_csects
;
3136 /* We set the obstack chunk size to a small value before
3137 changing subsegments, so that we don't use a lot of memory
3138 space for what may be a small section. */
3139 hold_chunksize
= chunksize
;
3142 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3143 symbol_get_tc (sym
)->subseg
);
3145 chunksize
= hold_chunksize
;
3148 ppc_after_toc_frag
= frag_now
;
3150 record_alignment (sec
, align
);
3152 frag_align_code (align
, 0);
3154 frag_align (align
, 0, 0);
3156 symbol_set_frag (sym
, frag_now
);
3157 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3159 symbol_get_tc (sym
)->align
= align
;
3160 symbol_get_tc (sym
)->output
= 1;
3161 symbol_get_tc (sym
)->within
= sym
;
3163 for (list
= *list_ptr
;
3164 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3165 list
= symbol_get_tc (list
)->next
)
3167 symbol_get_tc (list
)->next
= sym
;
3169 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3170 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3174 ppc_current_csect
= sym
;
3177 /* This function handles the .text and .data pseudo-ops. These
3178 pseudo-ops aren't really used by XCOFF; we implement them for the
3179 convenience of people who aren't used to XCOFF. */
3190 else if (type
== 'd')
3195 sym
= symbol_find_or_make (name
);
3197 ppc_change_csect (sym
, 2);
3199 demand_empty_rest_of_line ();
3202 /* This function handles the .section pseudo-op. This is mostly to
3203 give an error, since XCOFF only supports .text, .data and .bss, but
3204 we do permit the user to name the text or data section. */
3207 ppc_named_section (ignore
)
3208 int ignore ATTRIBUTE_UNUSED
;
3211 const char *real_name
;
3215 user_name
= input_line_pointer
;
3216 c
= get_symbol_end ();
3218 if (strcmp (user_name
, ".text") == 0)
3219 real_name
= ".text[PR]";
3220 else if (strcmp (user_name
, ".data") == 0)
3221 real_name
= ".data[RW]";
3224 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3225 *input_line_pointer
= c
;
3226 ignore_rest_of_line ();
3230 *input_line_pointer
= c
;
3232 sym
= symbol_find_or_make (real_name
);
3234 ppc_change_csect (sym
, 2);
3236 demand_empty_rest_of_line ();
3239 /* The .extern pseudo-op. We create an undefined symbol. */
3243 int ignore ATTRIBUTE_UNUSED
;
3248 name
= input_line_pointer
;
3249 endc
= get_symbol_end ();
3251 (void) symbol_find_or_make (name
);
3253 *input_line_pointer
= endc
;
3255 demand_empty_rest_of_line ();
3258 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3262 int ignore ATTRIBUTE_UNUSED
;
3268 name
= input_line_pointer
;
3269 endc
= get_symbol_end ();
3271 sym
= symbol_find_or_make (name
);
3273 *input_line_pointer
= endc
;
3275 symbol_get_tc (sym
)->output
= 1;
3277 demand_empty_rest_of_line ();
3280 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3281 although I don't know why it bothers. */
3285 int ignore ATTRIBUTE_UNUSED
;
3292 name
= input_line_pointer
;
3293 endc
= get_symbol_end ();
3295 sym
= symbol_find_or_make (name
);
3297 *input_line_pointer
= endc
;
3299 if (*input_line_pointer
!= ',')
3301 as_bad (_("missing rename string"));
3302 ignore_rest_of_line ();
3305 ++input_line_pointer
;
3307 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3309 demand_empty_rest_of_line ();
3312 /* The .stabx pseudo-op. This is similar to a normal .stabs
3313 pseudo-op, but slightly different. A sample is
3314 .stabx "main:F-1",.main,142,0
3315 The first argument is the symbol name to create. The second is the
3316 value, and the third is the storage class. The fourth seems to be
3317 always zero, and I am assuming it is the type. */
3321 int ignore ATTRIBUTE_UNUSED
;
3328 name
= demand_copy_C_string (&len
);
3330 if (*input_line_pointer
!= ',')
3332 as_bad (_("missing value"));
3335 ++input_line_pointer
;
3337 ppc_stab_symbol
= TRUE
;
3338 sym
= symbol_make (name
);
3339 ppc_stab_symbol
= FALSE
;
3341 symbol_get_tc (sym
)->real_name
= name
;
3343 (void) expression (&exp
);
3350 as_bad (_("illegal .stabx expression; zero assumed"));
3351 exp
.X_add_number
= 0;
3354 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3355 symbol_set_frag (sym
, &zero_address_frag
);
3359 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3360 symbol_set_value_expression (sym
, &exp
);
3364 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3365 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3370 /* The value is some complex expression. This will probably
3371 fail at some later point, but this is probably the right
3372 thing to do here. */
3373 symbol_set_value_expression (sym
, &exp
);
3377 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3378 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3380 if (*input_line_pointer
!= ',')
3382 as_bad (_("missing class"));
3385 ++input_line_pointer
;
3387 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3389 if (*input_line_pointer
!= ',')
3391 as_bad (_("missing type"));
3394 ++input_line_pointer
;
3396 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3398 symbol_get_tc (sym
)->output
= 1;
3400 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3402 symbol_get_tc (sym
)->within
= ppc_current_block
;
3407 .stabx "z",arrays_,133,0
3410 .comm arrays_,13768,3
3412 resolve_symbol_value will copy the exp's "within" into sym's when the
3413 offset is 0. Since this seems to be corner case problem,
3414 only do the correction for storage class C_STSYM. A better solution
3415 would be to have the tc field updated in ppc_symbol_new_hook. */
3417 if (exp
.X_op
== O_symbol
)
3419 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3423 if (exp
.X_op
!= O_symbol
3424 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3425 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3426 ppc_frob_label (sym
);
3429 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3430 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3431 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3432 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3435 demand_empty_rest_of_line ();
3438 /* The .function pseudo-op. This takes several arguments. The first
3439 argument seems to be the external name of the symbol. The second
3440 argument seems to be the label for the start of the function. gcc
3441 uses the same name for both. I have no idea what the third and
3442 fourth arguments are meant to be. The optional fifth argument is
3443 an expression for the size of the function. In COFF this symbol
3444 gets an aux entry like that used for a csect. */
3447 ppc_function (ignore
)
3448 int ignore ATTRIBUTE_UNUSED
;
3456 name
= input_line_pointer
;
3457 endc
= get_symbol_end ();
3459 /* Ignore any [PR] suffix. */
3460 name
= ppc_canonicalize_symbol_name (name
);
3461 s
= strchr (name
, '[');
3462 if (s
!= (char *) NULL
3463 && strcmp (s
+ 1, "PR]") == 0)
3466 ext_sym
= symbol_find_or_make (name
);
3468 *input_line_pointer
= endc
;
3470 if (*input_line_pointer
!= ',')
3472 as_bad (_("missing symbol name"));
3473 ignore_rest_of_line ();
3476 ++input_line_pointer
;
3478 name
= input_line_pointer
;
3479 endc
= get_symbol_end ();
3481 lab_sym
= symbol_find_or_make (name
);
3483 *input_line_pointer
= endc
;
3485 if (ext_sym
!= lab_sym
)
3489 exp
.X_op
= O_symbol
;
3490 exp
.X_add_symbol
= lab_sym
;
3491 exp
.X_op_symbol
= NULL
;
3492 exp
.X_add_number
= 0;
3494 symbol_set_value_expression (ext_sym
, &exp
);
3497 if (symbol_get_tc (ext_sym
)->class == -1)
3498 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3499 symbol_get_tc (ext_sym
)->output
= 1;
3501 if (*input_line_pointer
== ',')
3505 /* Ignore the third argument. */
3506 ++input_line_pointer
;
3507 expression (&ignore
);
3508 if (*input_line_pointer
== ',')
3510 /* Ignore the fourth argument. */
3511 ++input_line_pointer
;
3512 expression (&ignore
);
3513 if (*input_line_pointer
== ',')
3515 /* The fifth argument is the function size. */
3516 ++input_line_pointer
;
3517 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3520 &zero_address_frag
);
3521 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3526 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3527 SF_SET_FUNCTION (ext_sym
);
3528 SF_SET_PROCESS (ext_sym
);
3529 coff_add_linesym (ext_sym
);
3531 demand_empty_rest_of_line ();
3534 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3535 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3536 with the correct line number */
3538 static symbolS
*saved_bi_sym
= 0;
3542 int ignore ATTRIBUTE_UNUSED
;
3546 sym
= symbol_make (".bf");
3547 S_SET_SEGMENT (sym
, text_section
);
3548 symbol_set_frag (sym
, frag_now
);
3549 S_SET_VALUE (sym
, frag_now_fix ());
3550 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3552 coff_line_base
= get_absolute_expression ();
3554 S_SET_NUMBER_AUXILIARY (sym
, 1);
3555 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3557 /* Line number for bi. */
3560 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3565 symbol_get_tc (sym
)->output
= 1;
3567 ppc_frob_label (sym
);
3569 demand_empty_rest_of_line ();
3572 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3573 ".ef", except that the line number is absolute, not relative to the
3574 most recent ".bf" symbol. */
3578 int ignore ATTRIBUTE_UNUSED
;
3582 sym
= symbol_make (".ef");
3583 S_SET_SEGMENT (sym
, text_section
);
3584 symbol_set_frag (sym
, frag_now
);
3585 S_SET_VALUE (sym
, frag_now_fix ());
3586 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3587 S_SET_NUMBER_AUXILIARY (sym
, 1);
3588 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3589 symbol_get_tc (sym
)->output
= 1;
3591 ppc_frob_label (sym
);
3593 demand_empty_rest_of_line ();
3596 /* The .bi and .ei pseudo-ops. These take a string argument and
3597 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3598 the symbol list. The value of .bi will be know when the next .bf
3605 static symbolS
*last_biei
;
3612 name
= demand_copy_C_string (&len
);
3614 /* The value of these symbols is actually file offset. Here we set
3615 the value to the index into the line number entries. In
3616 ppc_frob_symbols we set the fix_line field, which will cause BFD
3617 to do the right thing. */
3619 sym
= symbol_make (name
);
3620 /* obj-coff.c currently only handles line numbers correctly in the
3622 S_SET_SEGMENT (sym
, text_section
);
3623 S_SET_VALUE (sym
, coff_n_line_nos
);
3624 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3626 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3627 symbol_get_tc (sym
)->output
= 1;
3635 for (look
= last_biei
? last_biei
: symbol_rootP
;
3636 (look
!= (symbolS
*) NULL
3637 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3638 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3639 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3640 look
= symbol_next (look
))
3642 if (look
!= (symbolS
*) NULL
)
3644 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3645 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3649 demand_empty_rest_of_line ();
3652 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3653 There is one argument, which is a csect symbol. The value of the
3654 .bs symbol is the index of this csect symbol. */
3658 int ignore ATTRIBUTE_UNUSED
;
3665 if (ppc_current_block
!= NULL
)
3666 as_bad (_("nested .bs blocks"));
3668 name
= input_line_pointer
;
3669 endc
= get_symbol_end ();
3671 csect
= symbol_find_or_make (name
);
3673 *input_line_pointer
= endc
;
3675 sym
= symbol_make (".bs");
3676 S_SET_SEGMENT (sym
, now_seg
);
3677 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3678 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3679 symbol_get_tc (sym
)->output
= 1;
3681 symbol_get_tc (sym
)->within
= csect
;
3683 ppc_frob_label (sym
);
3685 ppc_current_block
= sym
;
3687 demand_empty_rest_of_line ();
3690 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3694 int ignore ATTRIBUTE_UNUSED
;
3698 if (ppc_current_block
== NULL
)
3699 as_bad (_(".es without preceding .bs"));
3701 sym
= symbol_make (".es");
3702 S_SET_SEGMENT (sym
, now_seg
);
3703 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3704 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3705 symbol_get_tc (sym
)->output
= 1;
3707 ppc_frob_label (sym
);
3709 ppc_current_block
= NULL
;
3711 demand_empty_rest_of_line ();
3714 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3719 int ignore ATTRIBUTE_UNUSED
;
3723 sym
= symbol_make (".bb");
3724 S_SET_SEGMENT (sym
, text_section
);
3725 symbol_set_frag (sym
, frag_now
);
3726 S_SET_VALUE (sym
, frag_now_fix ());
3727 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3729 S_SET_NUMBER_AUXILIARY (sym
, 1);
3730 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3732 symbol_get_tc (sym
)->output
= 1;
3734 SF_SET_PROCESS (sym
);
3736 ppc_frob_label (sym
);
3738 demand_empty_rest_of_line ();
3741 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3746 int ignore ATTRIBUTE_UNUSED
;
3750 sym
= symbol_make (".eb");
3751 S_SET_SEGMENT (sym
, text_section
);
3752 symbol_set_frag (sym
, frag_now
);
3753 S_SET_VALUE (sym
, frag_now_fix ());
3754 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3755 S_SET_NUMBER_AUXILIARY (sym
, 1);
3756 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3757 symbol_get_tc (sym
)->output
= 1;
3759 SF_SET_PROCESS (sym
);
3761 ppc_frob_label (sym
);
3763 demand_empty_rest_of_line ();
3766 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3771 int ignore ATTRIBUTE_UNUSED
;
3777 name
= demand_copy_C_string (&len
);
3778 sym
= symbol_make (name
);
3779 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3780 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3781 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3782 S_SET_VALUE (sym
, 0);
3783 symbol_get_tc (sym
)->output
= 1;
3785 ppc_frob_label (sym
);
3787 demand_empty_rest_of_line ();
3790 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3794 int ignore ATTRIBUTE_UNUSED
;
3798 sym
= symbol_make (".ec");
3799 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3800 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3801 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3802 S_SET_VALUE (sym
, 0);
3803 symbol_get_tc (sym
)->output
= 1;
3805 ppc_frob_label (sym
);
3807 demand_empty_rest_of_line ();
3810 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3814 int ignore ATTRIBUTE_UNUSED
;
3816 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3817 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3824 subseg
= ppc_data_subsegment
;
3825 ++ppc_data_subsegment
;
3827 subseg_new (segment_name (data_section
), subseg
);
3828 ppc_toc_frag
= frag_now
;
3830 sym
= symbol_find_or_make ("TOC[TC0]");
3831 symbol_set_frag (sym
, frag_now
);
3832 S_SET_SEGMENT (sym
, data_section
);
3833 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3834 symbol_get_tc (sym
)->subseg
= subseg
;
3835 symbol_get_tc (sym
)->output
= 1;
3836 symbol_get_tc (sym
)->within
= sym
;
3838 ppc_toc_csect
= sym
;
3840 for (list
= ppc_data_csects
;
3841 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3842 list
= symbol_get_tc (list
)->next
)
3844 symbol_get_tc (list
)->next
= sym
;
3846 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3847 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3851 ppc_current_csect
= ppc_toc_csect
;
3853 demand_empty_rest_of_line ();
3856 /* The AIX assembler automatically aligns the operands of a .long or
3857 .short pseudo-op, and we want to be compatible. */
3860 ppc_xcoff_cons (log_size
)
3863 frag_align (log_size
, 0, 0);
3864 record_alignment (now_seg
, log_size
);
3865 cons (1 << log_size
);
3870 int dummy ATTRIBUTE_UNUSED
;
3875 (void) expression (&exp
);
3877 if (exp
.X_op
!= O_constant
)
3879 as_bad (_("non-constant byte count"));
3883 byte_count
= exp
.X_add_number
;
3885 if (*input_line_pointer
!= ',')
3887 as_bad (_("missing value"));
3891 ++input_line_pointer
;
3895 #endif /* OBJ_XCOFF */
3896 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3898 /* The .tc pseudo-op. This is used when generating either XCOFF or
3899 ELF. This takes two or more arguments.
3901 When generating XCOFF output, the first argument is the name to
3902 give to this location in the toc; this will be a symbol with class
3903 TC. The rest of the arguments are N-byte values to actually put at
3904 this location in the TOC; often there is just one more argument, a
3905 relocatable symbol reference. The size of the value to store
3906 depends on target word size. A 32-bit target uses 4-byte values, a
3907 64-bit target uses 8-byte values.
3909 When not generating XCOFF output, the arguments are the same, but
3910 the first argument is simply ignored. */
3914 int ignore ATTRIBUTE_UNUSED
;
3918 /* Define the TOC symbol name. */
3924 if (ppc_toc_csect
== (symbolS
*) NULL
3925 || ppc_toc_csect
!= ppc_current_csect
)
3927 as_bad (_(".tc not in .toc section"));
3928 ignore_rest_of_line ();
3932 name
= input_line_pointer
;
3933 endc
= get_symbol_end ();
3935 sym
= symbol_find_or_make (name
);
3937 *input_line_pointer
= endc
;
3939 if (S_IS_DEFINED (sym
))
3943 label
= symbol_get_tc (ppc_current_csect
)->within
;
3944 if (symbol_get_tc (label
)->class != XMC_TC0
)
3946 as_bad (_(".tc with no label"));
3947 ignore_rest_of_line ();
3951 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3952 symbol_set_frag (label
, symbol_get_frag (sym
));
3953 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3955 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3956 ++input_line_pointer
;
3961 S_SET_SEGMENT (sym
, now_seg
);
3962 symbol_set_frag (sym
, frag_now
);
3963 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3964 symbol_get_tc (sym
)->class = XMC_TC
;
3965 symbol_get_tc (sym
)->output
= 1;
3967 ppc_frob_label (sym
);
3970 #endif /* OBJ_XCOFF */
3974 /* Skip the TOC symbol name. */
3975 while (is_part_of_name (*input_line_pointer
)
3976 || *input_line_pointer
== '['
3977 || *input_line_pointer
== ']'
3978 || *input_line_pointer
== '{'
3979 || *input_line_pointer
== '}')
3980 ++input_line_pointer
;
3982 /* Align to a four/eight byte boundary. */
3983 align
= ppc_obj64
? 3 : 2;
3984 frag_align (align
, 0, 0);
3985 record_alignment (now_seg
, align
);
3986 #endif /* OBJ_ELF */
3988 if (*input_line_pointer
!= ',')
3989 demand_empty_rest_of_line ();
3992 ++input_line_pointer
;
3993 cons (ppc_obj64
? 8 : 4);
3997 /* Pseudo-op .machine. */
4000 ppc_machine (ignore
)
4001 int ignore ATTRIBUTE_UNUSED
;
4004 #define MAX_HISTORY 100
4005 static unsigned long *cpu_history
;
4006 static int curr_hist
;
4010 if (*input_line_pointer
== '"')
4013 cpu_string
= demand_copy_C_string (&len
);
4018 cpu_string
= input_line_pointer
;
4019 c
= get_symbol_end ();
4020 cpu_string
= xstrdup (cpu_string
);
4021 *input_line_pointer
= c
;
4024 if (cpu_string
!= NULL
)
4026 unsigned long old_cpu
= ppc_cpu
;
4029 for (p
= cpu_string
; *p
!= 0; p
++)
4032 if (strcmp (cpu_string
, "push") == 0)
4034 if (cpu_history
== NULL
)
4035 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4037 if (curr_hist
>= MAX_HISTORY
)
4038 as_bad (_(".machine stack overflow"));
4040 cpu_history
[curr_hist
++] = ppc_cpu
;
4042 else if (strcmp (cpu_string
, "pop") == 0)
4045 as_bad (_(".machine stack underflow"));
4047 ppc_cpu
= cpu_history
[--curr_hist
];
4049 else if (parse_cpu (cpu_string
))
4052 as_bad (_("invalid machine `%s'"), cpu_string
);
4054 if (ppc_cpu
!= old_cpu
)
4055 ppc_setup_opcodes ();
4058 demand_empty_rest_of_line ();
4061 /* See whether a symbol is in the TOC section. */
4064 ppc_is_toc_sym (sym
)
4068 return symbol_get_tc (sym
)->class == XMC_TC
;
4071 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4073 return strcmp (sname
, ".toc") == 0;
4075 return strcmp (sname
, ".got") == 0;
4078 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4082 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4084 /* Set the current section. */
4086 ppc_set_current_section (new)
4089 ppc_previous_section
= ppc_current_section
;
4090 ppc_current_section
= new;
4093 /* pseudo-op: .previous
4094 behaviour: toggles the current section with the previous section.
4096 warnings: "No previous section" */
4099 ppc_previous (ignore
)
4100 int ignore ATTRIBUTE_UNUSED
;
4104 if (ppc_previous_section
== NULL
)
4106 as_warn (_("No previous section to return to. Directive ignored."));
4110 subseg_set (ppc_previous_section
, 0);
4112 ppc_set_current_section (ppc_previous_section
);
4115 /* pseudo-op: .pdata
4116 behaviour: predefined read only data section
4120 initial: .section .pdata "adr3"
4121 a - don't know -- maybe a misprint
4122 d - initialized data
4124 3 - double word aligned (that would be 4 byte boundary)
4127 Tag index tables (also known as the function table) for exception
4128 handling, debugging, etc. */
4132 int ignore ATTRIBUTE_UNUSED
;
4134 if (pdata_section
== 0)
4136 pdata_section
= subseg_new (".pdata", 0);
4138 bfd_set_section_flags (stdoutput
, pdata_section
,
4139 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4140 | SEC_READONLY
| SEC_DATA
));
4142 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4146 pdata_section
= subseg_new (".pdata", 0);
4148 ppc_set_current_section (pdata_section
);
4151 /* pseudo-op: .ydata
4152 behaviour: predefined read only data section
4156 initial: .section .ydata "drw3"
4157 a - don't know -- maybe a misprint
4158 d - initialized data
4160 3 - double word aligned (that would be 4 byte boundary)
4162 Tag tables (also known as the scope table) for exception handling,
4167 int ignore ATTRIBUTE_UNUSED
;
4169 if (ydata_section
== 0)
4171 ydata_section
= subseg_new (".ydata", 0);
4172 bfd_set_section_flags (stdoutput
, ydata_section
,
4173 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4174 | SEC_READONLY
| SEC_DATA
));
4176 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4180 ydata_section
= subseg_new (".ydata", 0);
4182 ppc_set_current_section (ydata_section
);
4185 /* pseudo-op: .reldata
4186 behaviour: predefined read write data section
4187 double word aligned (4-byte)
4188 FIXME: relocation is applied to it
4189 FIXME: what's the difference between this and .data?
4192 initial: .section .reldata "drw3"
4193 d - initialized data
4196 3 - double word aligned (that would be 8 byte boundary)
4199 Like .data, but intended to hold data subject to relocation, such as
4200 function descriptors, etc. */
4203 ppc_reldata (ignore
)
4204 int ignore ATTRIBUTE_UNUSED
;
4206 if (reldata_section
== 0)
4208 reldata_section
= subseg_new (".reldata", 0);
4210 bfd_set_section_flags (stdoutput
, reldata_section
,
4211 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4214 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4218 reldata_section
= subseg_new (".reldata", 0);
4220 ppc_set_current_section (reldata_section
);
4223 /* pseudo-op: .rdata
4224 behaviour: predefined read only data section
4228 initial: .section .rdata "dr3"
4229 d - initialized data
4231 3 - double word aligned (that would be 4 byte boundary) */
4235 int ignore ATTRIBUTE_UNUSED
;
4237 if (rdata_section
== 0)
4239 rdata_section
= subseg_new (".rdata", 0);
4240 bfd_set_section_flags (stdoutput
, rdata_section
,
4241 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4242 | SEC_READONLY
| SEC_DATA
));
4244 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4248 rdata_section
= subseg_new (".rdata", 0);
4250 ppc_set_current_section (rdata_section
);
4253 /* pseudo-op: .ualong
4254 behaviour: much like .int, with the exception that no alignment is
4256 FIXME: test the alignment statement
4262 int ignore ATTRIBUTE_UNUSED
;
4268 /* pseudo-op: .znop <symbol name>
4269 behaviour: Issue a nop instruction
4270 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4271 the supplied symbol name.
4273 warnings: Missing symbol name */
4277 int ignore ATTRIBUTE_UNUSED
;
4280 const struct powerpc_opcode
*opcode
;
4291 /* Strip out the symbol name. */
4292 symbol_name
= input_line_pointer
;
4293 c
= get_symbol_end ();
4295 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4296 strcpy (name
, symbol_name
);
4298 sym
= symbol_find_or_make (name
);
4300 *input_line_pointer
= c
;
4304 /* Look up the opcode in the hash table. */
4305 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4307 /* Stick in the nop. */
4308 insn
= opcode
->opcode
;
4310 /* Write out the instruction. */
4312 md_number_to_chars (f
, insn
, 4);
4314 f
- frag_now
->fr_literal
,
4319 BFD_RELOC_16_GOT_PCREL
);
4332 register char *name
;
4336 register symbolS
*symbolP
;
4339 name
= input_line_pointer
;
4340 c
= get_symbol_end ();
4342 /* just after name is now '\0'. */
4343 p
= input_line_pointer
;
4346 if (*input_line_pointer
!= ',')
4348 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4349 ignore_rest_of_line ();
4353 input_line_pointer
++; /* skip ',' */
4354 if ((temp
= get_absolute_expression ()) < 0)
4356 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4357 ignore_rest_of_line ();
4363 /* The third argument to .comm is the alignment. */
4364 if (*input_line_pointer
!= ',')
4368 ++input_line_pointer
;
4369 align
= get_absolute_expression ();
4372 as_warn (_("ignoring bad alignment"));
4379 symbolP
= symbol_find_or_make (name
);
4382 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4384 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4385 S_GET_NAME (symbolP
));
4386 ignore_rest_of_line ();
4390 if (S_GET_VALUE (symbolP
))
4392 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4393 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4394 S_GET_NAME (symbolP
),
4395 (long) S_GET_VALUE (symbolP
),
4400 S_SET_VALUE (symbolP
, (valueT
) temp
);
4401 S_SET_EXTERNAL (symbolP
);
4404 demand_empty_rest_of_line ();
4408 * implement the .section pseudo op:
4409 * .section name {, "flags"}
4411 * | +--- optional flags: 'b' for bss
4413 * +-- section name 'l' for lib
4417 * 'd' (apparently m88k for data)
4419 * But if the argument is not a quoted string, treat it as a
4420 * subsegment number.
4422 * FIXME: this is a copy of the section processing from obj-coff.c, with
4423 * additions/changes for the moto-pas assembler support. There are three
4426 * FIXME: I just noticed this. This doesn't work at all really. It it
4427 * setting bits that bfd probably neither understands or uses. The
4428 * correct approach (?) will have to incorporate extra fields attached
4429 * to the section to hold the system specific stuff. (krk)
4432 * 'a' - unknown - referred to in documentation, but no definition supplied
4433 * 'c' - section has code
4434 * 'd' - section has initialized data
4435 * 'u' - section has uninitialized data
4436 * 'i' - section contains directives (info)
4437 * 'n' - section can be discarded
4438 * 'R' - remove section at link time
4440 * Section Protection:
4441 * 'r' - section is readable
4442 * 'w' - section is writeable
4443 * 'x' - section is executable
4444 * 's' - section is sharable
4446 * Section Alignment:
4447 * '0' - align to byte boundary
4448 * '1' - align to halfword undary
4449 * '2' - align to word boundary
4450 * '3' - align to doubleword boundary
4451 * '4' - align to quadword boundary
4452 * '5' - align to 32 byte boundary
4453 * '6' - align to 64 byte boundary
4458 ppc_pe_section (ignore
)
4459 int ignore ATTRIBUTE_UNUSED
;
4461 /* Strip out the section name. */
4470 section_name
= input_line_pointer
;
4471 c
= get_symbol_end ();
4473 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4474 strcpy (name
, section_name
);
4476 *input_line_pointer
= c
;
4481 flags
= SEC_NO_FLAGS
;
4483 if (strcmp (name
, ".idata$2") == 0)
4487 else if (strcmp (name
, ".idata$3") == 0)
4491 else if (strcmp (name
, ".idata$4") == 0)
4495 else if (strcmp (name
, ".idata$5") == 0)
4499 else if (strcmp (name
, ".idata$6") == 0)
4504 /* Default alignment to 16 byte boundary. */
4507 if (*input_line_pointer
== ',')
4509 ++input_line_pointer
;
4511 if (*input_line_pointer
!= '"')
4512 exp
= get_absolute_expression ();
4515 ++input_line_pointer
;
4516 while (*input_line_pointer
!= '"'
4517 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4519 switch (*input_line_pointer
)
4521 /* Section Contents */
4522 case 'a': /* unknown */
4523 as_bad (_("Unsupported section attribute -- 'a'"));
4525 case 'c': /* code section */
4528 case 'd': /* section has initialized data */
4531 case 'u': /* section has uninitialized data */
4532 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4536 case 'i': /* section contains directives (info) */
4537 /* FIXME: This is IMAGE_SCN_LNK_INFO
4539 flags
|= SEC_HAS_CONTENTS
;
4541 case 'n': /* section can be discarded */
4544 case 'R': /* Remove section at link time */
4545 flags
|= SEC_NEVER_LOAD
;
4548 /* Section Protection */
4549 case 'r': /* section is readable */
4550 flags
|= IMAGE_SCN_MEM_READ
;
4552 case 'w': /* section is writeable */
4553 flags
|= IMAGE_SCN_MEM_WRITE
;
4555 case 'x': /* section is executable */
4556 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4558 case 's': /* section is sharable */
4559 flags
|= IMAGE_SCN_MEM_SHARED
;
4562 /* Section Alignment */
4563 case '0': /* align to byte boundary */
4564 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4567 case '1': /* align to halfword boundary */
4568 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4571 case '2': /* align to word boundary */
4572 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4575 case '3': /* align to doubleword boundary */
4576 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4579 case '4': /* align to quadword boundary */
4580 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4583 case '5': /* align to 32 byte boundary */
4584 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4587 case '6': /* align to 64 byte boundary */
4588 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4593 as_bad (_("unknown section attribute '%c'"),
4594 *input_line_pointer
);
4597 ++input_line_pointer
;
4599 if (*input_line_pointer
== '"')
4600 ++input_line_pointer
;
4604 sec
= subseg_new (name
, (subsegT
) exp
);
4606 ppc_set_current_section (sec
);
4608 if (flags
!= SEC_NO_FLAGS
)
4610 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4611 as_bad (_("error setting flags for \"%s\": %s"),
4612 bfd_section_name (stdoutput
, sec
),
4613 bfd_errmsg (bfd_get_error ()));
4616 bfd_set_section_alignment (stdoutput
, sec
, align
);
4621 ppc_pe_function (ignore
)
4622 int ignore ATTRIBUTE_UNUSED
;
4628 name
= input_line_pointer
;
4629 endc
= get_symbol_end ();
4631 ext_sym
= symbol_find_or_make (name
);
4633 *input_line_pointer
= endc
;
4635 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4636 SF_SET_FUNCTION (ext_sym
);
4637 SF_SET_PROCESS (ext_sym
);
4638 coff_add_linesym (ext_sym
);
4640 demand_empty_rest_of_line ();
4644 ppc_pe_tocd (ignore
)
4645 int ignore ATTRIBUTE_UNUSED
;
4647 if (tocdata_section
== 0)
4649 tocdata_section
= subseg_new (".tocd", 0);
4650 /* FIXME: section flags won't work. */
4651 bfd_set_section_flags (stdoutput
, tocdata_section
,
4652 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4653 | SEC_READONLY
| SEC_DATA
));
4655 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4659 rdata_section
= subseg_new (".tocd", 0);
4662 ppc_set_current_section (tocdata_section
);
4664 demand_empty_rest_of_line ();
4667 /* Don't adjust TOC relocs to use the section symbol. */
4670 ppc_pe_fix_adjustable (fix
)
4673 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4680 /* XCOFF specific symbol and file handling. */
4682 /* Canonicalize the symbol name. We use the to force the suffix, if
4683 any, to use square brackets, and to be in upper case. */
4686 ppc_canonicalize_symbol_name (name
)
4691 if (ppc_stab_symbol
)
4694 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4708 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4711 if (*s
== '\0' || s
[1] != '\0')
4712 as_bad (_("bad symbol suffix"));
4720 /* Set the class of a symbol based on the suffix, if any. This is
4721 called whenever a new symbol is created. */
4724 ppc_symbol_new_hook (sym
)
4727 struct ppc_tc_sy
*tc
;
4730 tc
= symbol_get_tc (sym
);
4734 tc
->real_name
= NULL
;
4740 if (ppc_stab_symbol
)
4743 s
= strchr (S_GET_NAME (sym
), '[');
4744 if (s
== (const char *) NULL
)
4746 /* There is no suffix. */
4755 if (strcmp (s
, "BS]") == 0)
4759 if (strcmp (s
, "DB]") == 0)
4761 else if (strcmp (s
, "DS]") == 0)
4765 if (strcmp (s
, "GL]") == 0)
4769 if (strcmp (s
, "PR]") == 0)
4773 if (strcmp (s
, "RO]") == 0)
4775 else if (strcmp (s
, "RW]") == 0)
4779 if (strcmp (s
, "SV]") == 0)
4783 if (strcmp (s
, "TC]") == 0)
4785 else if (strcmp (s
, "TI]") == 0)
4787 else if (strcmp (s
, "TB]") == 0)
4789 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4790 tc
->class = XMC_TC0
;
4793 if (strcmp (s
, "UA]") == 0)
4795 else if (strcmp (s
, "UC]") == 0)
4799 if (strcmp (s
, "XO]") == 0)
4804 if (tc
->class == -1)
4805 as_bad (_("Unrecognized symbol suffix"));
4808 /* Set the class of a label based on where it is defined. This
4809 handles symbols without suffixes. Also, move the symbol so that it
4810 follows the csect symbol. */
4813 ppc_frob_label (sym
)
4816 if (ppc_current_csect
!= (symbolS
*) NULL
)
4818 if (symbol_get_tc (sym
)->class == -1)
4819 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4821 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4822 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4823 &symbol_rootP
, &symbol_lastP
);
4824 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4828 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4829 seen. It tells ppc_adjust_symtab whether it needs to look through
4832 static bfd_boolean ppc_saw_abs
;
4834 /* Change the name of a symbol just before writing it out. Set the
4835 real name if the .rename pseudo-op was used. Otherwise, remove any
4836 class suffix. Return 1 if the symbol should not be included in the
4840 ppc_frob_symbol (sym
)
4843 static symbolS
*ppc_last_function
;
4844 static symbolS
*set_end
;
4846 /* Discard symbols that should not be included in the output symbol
4848 if (! symbol_used_in_reloc_p (sym
)
4849 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4850 || (! S_IS_EXTERNAL (sym
)
4851 && ! symbol_get_tc (sym
)->output
4852 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4855 /* This one will disappear anyway. Don't make a csect sym for it. */
4856 if (sym
== abs_section_sym
)
4859 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4860 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4866 name
= S_GET_NAME (sym
);
4867 s
= strchr (name
, '[');
4868 if (s
!= (char *) NULL
)
4874 snew
= xmalloc (len
+ 1);
4875 memcpy (snew
, name
, len
);
4878 S_SET_NAME (sym
, snew
);
4882 if (set_end
!= (symbolS
*) NULL
)
4884 SA_SET_SYM_ENDNDX (set_end
, sym
);
4888 if (SF_GET_FUNCTION (sym
))
4890 if (ppc_last_function
!= (symbolS
*) NULL
)
4891 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4892 ppc_last_function
= sym
;
4893 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4895 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4896 SA_SET_SYM_FSIZE (sym
,
4897 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4900 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4901 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4903 if (ppc_last_function
== (symbolS
*) NULL
)
4904 as_bad (_(".ef with no preceding .function"));
4907 set_end
= ppc_last_function
;
4908 ppc_last_function
= NULL
;
4910 /* We don't have a C_EFCN symbol, but we need to force the
4911 COFF backend to believe that it has seen one. */
4912 coff_last_function
= NULL
;
4916 if (! S_IS_EXTERNAL (sym
)
4917 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4918 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4919 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4920 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4921 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4922 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4923 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4924 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4925 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4926 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4928 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4929 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4932 union internal_auxent
*a
;
4934 /* Create a csect aux. */
4935 i
= S_GET_NUMBER_AUXILIARY (sym
);
4936 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4937 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4938 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4940 /* This is the TOC table. */
4941 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4942 a
->x_csect
.x_scnlen
.l
= 0;
4943 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4945 else if (symbol_get_tc (sym
)->subseg
!= 0)
4947 /* This is a csect symbol. x_scnlen is the size of the
4949 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4950 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4951 S_GET_SEGMENT (sym
))
4952 - S_GET_VALUE (sym
));
4955 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4956 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4957 - S_GET_VALUE (sym
));
4959 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4961 else if (S_GET_SEGMENT (sym
) == bss_section
)
4963 /* This is a common symbol. */
4964 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4965 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4966 if (S_IS_EXTERNAL (sym
))
4967 symbol_get_tc (sym
)->class = XMC_RW
;
4969 symbol_get_tc (sym
)->class = XMC_BS
;
4971 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4973 /* This is an absolute symbol. The csect will be created by
4974 ppc_adjust_symtab. */
4976 a
->x_csect
.x_smtyp
= XTY_LD
;
4977 if (symbol_get_tc (sym
)->class == -1)
4978 symbol_get_tc (sym
)->class = XMC_XO
;
4980 else if (! S_IS_DEFINED (sym
))
4982 /* This is an external symbol. */
4983 a
->x_csect
.x_scnlen
.l
= 0;
4984 a
->x_csect
.x_smtyp
= XTY_ER
;
4986 else if (symbol_get_tc (sym
)->class == XMC_TC
)
4990 /* This is a TOC definition. x_scnlen is the size of the
4992 next
= symbol_next (sym
);
4993 while (symbol_get_tc (next
)->class == XMC_TC0
)
4994 next
= symbol_next (next
);
4995 if (next
== (symbolS
*) NULL
4996 || symbol_get_tc (next
)->class != XMC_TC
)
4998 if (ppc_after_toc_frag
== (fragS
*) NULL
)
4999 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5001 - S_GET_VALUE (sym
));
5003 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5004 - S_GET_VALUE (sym
));
5008 resolve_symbol_value (next
);
5009 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5010 - S_GET_VALUE (sym
));
5012 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5018 /* This is a normal symbol definition. x_scnlen is the
5019 symbol index of the containing csect. */
5020 if (S_GET_SEGMENT (sym
) == text_section
)
5021 csect
= ppc_text_csects
;
5022 else if (S_GET_SEGMENT (sym
) == data_section
)
5023 csect
= ppc_data_csects
;
5027 /* Skip the initial dummy symbol. */
5028 csect
= symbol_get_tc (csect
)->next
;
5030 if (csect
== (symbolS
*) NULL
)
5032 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5033 a
->x_csect
.x_scnlen
.l
= 0;
5037 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5039 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5040 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5041 > S_GET_VALUE (sym
))
5043 csect
= symbol_get_tc (csect
)->next
;
5046 a
->x_csect
.x_scnlen
.p
=
5047 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5048 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5051 a
->x_csect
.x_smtyp
= XTY_LD
;
5054 a
->x_csect
.x_parmhash
= 0;
5055 a
->x_csect
.x_snhash
= 0;
5056 if (symbol_get_tc (sym
)->class == -1)
5057 a
->x_csect
.x_smclas
= XMC_PR
;
5059 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5060 a
->x_csect
.x_stab
= 0;
5061 a
->x_csect
.x_snstab
= 0;
5063 /* Don't let the COFF backend resort these symbols. */
5064 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5066 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5068 /* We want the value to be the symbol index of the referenced
5069 csect symbol. BFD will do that for us if we set the right
5071 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5072 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5074 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5075 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5077 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5082 /* The value is the offset from the enclosing csect. */
5083 block
= symbol_get_tc (sym
)->within
;
5084 csect
= symbol_get_tc (block
)->within
;
5085 resolve_symbol_value (csect
);
5086 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5088 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5089 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5091 /* We want the value to be a file offset into the line numbers.
5092 BFD will do that for us if we set the right flags. We have
5093 already set the value correctly. */
5094 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5100 /* Adjust the symbol table. This creates csect symbols for all
5101 absolute symbols. */
5104 ppc_adjust_symtab ()
5111 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5115 union internal_auxent
*a
;
5117 if (S_GET_SEGMENT (sym
) != absolute_section
)
5120 csect
= symbol_create (".abs[XO]", absolute_section
,
5121 S_GET_VALUE (sym
), &zero_address_frag
);
5122 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5123 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5124 i
= S_GET_NUMBER_AUXILIARY (csect
);
5125 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5126 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5127 a
->x_csect
.x_scnlen
.l
= 0;
5128 a
->x_csect
.x_smtyp
= XTY_SD
;
5129 a
->x_csect
.x_parmhash
= 0;
5130 a
->x_csect
.x_snhash
= 0;
5131 a
->x_csect
.x_smclas
= XMC_XO
;
5132 a
->x_csect
.x_stab
= 0;
5133 a
->x_csect
.x_snstab
= 0;
5135 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5137 i
= S_GET_NUMBER_AUXILIARY (sym
);
5138 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5139 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5140 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5143 ppc_saw_abs
= FALSE
;
5146 /* Set the VMA for a section. This is called on all the sections in
5150 ppc_frob_section (sec
)
5153 static bfd_vma vma
= 0;
5155 vma
= md_section_align (sec
, vma
);
5156 bfd_set_section_vma (stdoutput
, sec
, vma
);
5157 vma
+= bfd_section_size (stdoutput
, sec
);
5160 #endif /* OBJ_XCOFF */
5162 /* Turn a string in input_line_pointer into a floating point constant
5163 of type TYPE, and store the appropriate bytes in *LITP. The number
5164 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5165 returned, or NULL on OK. */
5168 md_atof (type
, litp
, sizep
)
5174 LITTLENUM_TYPE words
[4];
5190 return _("bad call to md_atof");
5193 t
= atof_ieee (input_line_pointer
, type
, words
);
5195 input_line_pointer
= t
;
5199 if (target_big_endian
)
5201 for (i
= 0; i
< prec
; i
++)
5203 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5209 for (i
= prec
- 1; i
>= 0; i
--)
5211 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5219 /* Write a value out to the object file, using the appropriate
5223 md_number_to_chars (buf
, val
, n
)
5228 if (target_big_endian
)
5229 number_to_chars_bigendian (buf
, val
, n
);
5231 number_to_chars_littleendian (buf
, val
, n
);
5234 /* Align a section (I don't know why this is machine dependent). */
5237 md_section_align (seg
, addr
)
5241 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5243 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5246 /* We don't have any form of relaxing. */
5249 md_estimate_size_before_relax (fragp
, seg
)
5250 fragS
*fragp ATTRIBUTE_UNUSED
;
5251 asection
*seg ATTRIBUTE_UNUSED
;
5257 /* Convert a machine dependent frag. We never generate these. */
5260 md_convert_frag (abfd
, sec
, fragp
)
5261 bfd
*abfd ATTRIBUTE_UNUSED
;
5262 asection
*sec ATTRIBUTE_UNUSED
;
5263 fragS
*fragp ATTRIBUTE_UNUSED
;
5268 /* We have no need to default values of symbols. */
5271 md_undefined_symbol (name
)
5272 char *name ATTRIBUTE_UNUSED
;
5277 /* Functions concerning relocs. */
5279 /* The location from which a PC relative jump should be calculated,
5280 given a PC relative reloc. */
5283 md_pcrel_from_section (fixp
, sec
)
5285 segT sec ATTRIBUTE_UNUSED
;
5287 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5292 /* This is called to see whether a fixup should be adjusted to use a
5293 section symbol. We take the opportunity to change a fixup against
5294 a symbol in the TOC subsegment into a reloc against the
5295 corresponding .tc symbol. */
5298 ppc_fix_adjustable (fix
)
5301 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5302 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5303 TC_SYMFIELD_TYPE
*tc
;
5305 if (symseg
== absolute_section
)
5308 if (ppc_toc_csect
!= (symbolS
*) NULL
5309 && fix
->fx_addsy
!= ppc_toc_csect
5310 && symseg
== data_section
5311 && val
>= ppc_toc_frag
->fr_address
5312 && (ppc_after_toc_frag
== (fragS
*) NULL
5313 || val
< ppc_after_toc_frag
->fr_address
))
5317 for (sy
= symbol_next (ppc_toc_csect
);
5318 sy
!= (symbolS
*) NULL
;
5319 sy
= symbol_next (sy
))
5321 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5323 if (sy_tc
->class == XMC_TC0
)
5325 if (sy_tc
->class != XMC_TC
)
5327 if (val
== resolve_symbol_value (sy
))
5330 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5335 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5336 _("symbol in .toc does not match any .tc"));
5339 /* Possibly adjust the reloc to be against the csect. */
5340 tc
= symbol_get_tc (fix
->fx_addsy
);
5342 && tc
->class != XMC_TC0
5343 && tc
->class != XMC_TC
5344 && symseg
!= bss_section
5345 /* Don't adjust if this is a reloc in the toc section. */
5346 && (symseg
!= data_section
5347 || ppc_toc_csect
== NULL
5348 || val
< ppc_toc_frag
->fr_address
5349 || (ppc_after_toc_frag
!= NULL
5350 && val
>= ppc_after_toc_frag
->fr_address
)))
5353 symbolS
*next_csect
;
5355 if (symseg
== text_section
)
5356 csect
= ppc_text_csects
;
5357 else if (symseg
== data_section
)
5358 csect
= ppc_data_csects
;
5362 /* Skip the initial dummy symbol. */
5363 csect
= symbol_get_tc (csect
)->next
;
5365 if (csect
!= (symbolS
*) NULL
)
5367 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5368 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5370 /* If the csect address equals the symbol value, then we
5371 have to look through the full symbol table to see
5372 whether this is the csect we want. Note that we will
5373 only get here if the csect has zero length. */
5374 if (symbol_get_frag (csect
)->fr_address
== val
5375 && S_GET_VALUE (csect
) == val
)
5379 for (scan
= symbol_next (csect
);
5381 scan
= symbol_next (scan
))
5383 if (symbol_get_tc (scan
)->subseg
!= 0)
5385 if (scan
== fix
->fx_addsy
)
5389 /* If we found the symbol before the next csect
5390 symbol, then this is the csect we want. */
5391 if (scan
== fix
->fx_addsy
)
5398 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5399 fix
->fx_addsy
= csect
;
5404 /* Adjust a reloc against a .lcomm symbol to be against the base
5406 if (symseg
== bss_section
5407 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5409 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5411 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5418 /* A reloc from one csect to another must be kept. The assembler
5419 will, of course, keep relocs between sections, and it will keep
5420 absolute relocs, but we need to force it to keep PC relative relocs
5421 between two csects in the same section. */
5424 ppc_force_relocation (fix
)
5427 /* At this point fix->fx_addsy should already have been converted to
5428 a csect symbol. If the csect does not include the fragment, then
5429 we need to force the relocation. */
5431 && fix
->fx_addsy
!= NULL
5432 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5433 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5434 > fix
->fx_frag
->fr_address
)
5435 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5436 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5437 <= fix
->fx_frag
->fr_address
))))
5440 return generic_force_reloc (fix
);
5443 #endif /* OBJ_XCOFF */
5446 /* If this function returns non-zero, it guarantees that a relocation
5447 will be emitted for a fixup. */
5450 ppc_force_relocation (fix
)
5453 /* Branch prediction relocations must force a relocation, as must
5454 the vtable description relocs. */
5455 switch (fix
->fx_r_type
)
5457 case BFD_RELOC_PPC_B16_BRTAKEN
:
5458 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5459 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5460 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5461 case BFD_RELOC_PPC64_TOC
:
5467 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5468 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5471 return generic_force_reloc (fix
);
5475 ppc_fix_adjustable (fix
)
5478 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5479 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5480 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5481 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5482 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5483 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5484 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5485 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5486 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5488 || (fix
->fx_subsy
!= NULL
5489 && (S_GET_SEGMENT (fix
->fx_subsy
)
5490 == S_GET_SEGMENT (fix
->fx_addsy
)))
5491 || S_IS_LOCAL (fix
->fx_addsy
)));
5495 /* Apply a fixup to the object code. This is called for all the
5496 fixups we generated by the call to fix_new_exp, above. In the call
5497 above we used a reloc code which was the largest legal reloc code
5498 plus the operand index. Here we undo that to recover the operand
5499 index. At this point all symbol values should be fully resolved,
5500 and we attempt to completely resolve the reloc. If we can not do
5501 that, we determine the correct reloc code and put it back in the
5505 md_apply_fix3 (fixP
, valP
, seg
)
5508 segT seg ATTRIBUTE_UNUSED
;
5510 valueT value
= * valP
;
5513 if (fixP
->fx_addsy
!= NULL
)
5515 /* Hack around bfd_install_relocation brain damage. */
5517 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5522 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5523 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5524 doing this relocation the code in write.c is going to call
5525 bfd_install_relocation, which is also going to use the symbol
5526 value. That means that if the reloc is fully resolved we want to
5527 use *valP since bfd_install_relocation is not being used.
5528 However, if the reloc is not fully resolved we do not want to use
5529 *valP, and must use fx_offset instead. However, if the reloc
5530 is PC relative, we do want to use *valP since it includes the
5531 result of md_pcrel_from. This is confusing. */
5532 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5535 else if (fixP
->fx_pcrel
)
5539 value
= fixP
->fx_offset
;
5542 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5544 /* We can't actually support subtracting a symbol. */
5545 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5548 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5551 const struct powerpc_operand
*operand
;
5555 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5557 operand
= &powerpc_operands
[opindex
];
5560 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5561 does not generate a reloc. It uses the offset of `sym' within its
5562 csect. Other usages, such as `.long sym', generate relocs. This
5563 is the documented behaviour of non-TOC symbols. */
5564 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5565 && operand
->bits
== 16
5566 && operand
->shift
== 0
5567 && (operand
->insert
== NULL
|| ppc_obj64
)
5568 && fixP
->fx_addsy
!= NULL
5569 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5570 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5571 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5572 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5574 value
= fixP
->fx_offset
;
5579 /* Fetch the instruction, insert the fully resolved operand
5580 value, and stuff the instruction back again. */
5581 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5582 if (target_big_endian
)
5583 insn
= bfd_getb32 ((unsigned char *) where
);
5585 insn
= bfd_getl32 ((unsigned char *) where
);
5586 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5587 fixP
->fx_file
, fixP
->fx_line
);
5588 if (target_big_endian
)
5589 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5591 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5594 /* Nothing else to do here. */
5597 assert (fixP
->fx_addsy
!= NULL
);
5599 /* Determine a BFD reloc value based on the operand information.
5600 We are only prepared to turn a few of the operands into
5602 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5603 && operand
->bits
== 26
5604 && operand
->shift
== 0)
5605 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5606 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5607 && operand
->bits
== 16
5608 && operand
->shift
== 0)
5610 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5613 if (target_big_endian
)
5614 fixP
->fx_where
+= 2;
5617 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5618 && operand
->bits
== 26
5619 && operand
->shift
== 0)
5620 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5621 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5622 && operand
->bits
== 16
5623 && operand
->shift
== 0)
5625 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5628 if (target_big_endian
)
5629 fixP
->fx_where
+= 2;
5632 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5633 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5634 && operand
->bits
== 16
5635 && operand
->shift
== 0)
5637 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5639 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5642 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5643 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5648 fixP
->fx_r_type
= BFD_RELOC_16
;
5651 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5652 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5656 if (target_big_endian
)
5657 fixP
->fx_where
+= 2;
5659 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5665 /* Use expr_symbol_where to see if this is an expression
5667 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5668 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5669 _("unresolved expression that must be resolved"));
5671 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5672 _("unsupported relocation against %s"),
5673 S_GET_NAME (fixP
->fx_addsy
));
5681 ppc_elf_validate_fix (fixP
, seg
);
5683 switch (fixP
->fx_r_type
)
5685 case BFD_RELOC_CTOR
:
5692 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5696 case BFD_RELOC_32_PCREL
:
5697 case BFD_RELOC_PPC_EMB_NADDR32
:
5698 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5705 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5708 case BFD_RELOC_64_PCREL
:
5709 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5713 case BFD_RELOC_LO16
:
5715 case BFD_RELOC_GPREL16
:
5716 case BFD_RELOC_16_GOT_PCREL
:
5717 case BFD_RELOC_16_GOTOFF
:
5718 case BFD_RELOC_LO16_GOTOFF
:
5719 case BFD_RELOC_HI16_GOTOFF
:
5720 case BFD_RELOC_HI16_S_GOTOFF
:
5721 case BFD_RELOC_16_BASEREL
:
5722 case BFD_RELOC_LO16_BASEREL
:
5723 case BFD_RELOC_HI16_BASEREL
:
5724 case BFD_RELOC_HI16_S_BASEREL
:
5725 case BFD_RELOC_PPC_EMB_NADDR16
:
5726 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5727 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5728 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5729 case BFD_RELOC_PPC_EMB_SDAI16
:
5730 case BFD_RELOC_PPC_EMB_SDA2REL
:
5731 case BFD_RELOC_PPC_EMB_SDA2I16
:
5732 case BFD_RELOC_PPC_EMB_RELSEC16
:
5733 case BFD_RELOC_PPC_EMB_RELST_LO
:
5734 case BFD_RELOC_PPC_EMB_RELST_HI
:
5735 case BFD_RELOC_PPC_EMB_RELST_HA
:
5736 case BFD_RELOC_PPC_EMB_RELSDA
:
5737 case BFD_RELOC_PPC_TOC16
:
5739 case BFD_RELOC_PPC64_TOC16_LO
:
5740 case BFD_RELOC_PPC64_TOC16_HI
:
5741 case BFD_RELOC_PPC64_TOC16_HA
:
5745 if (fixP
->fx_addsy
!= NULL
)
5746 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5747 _("cannot emit PC relative %s relocation against %s"),
5748 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5749 S_GET_NAME (fixP
->fx_addsy
));
5751 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5752 _("cannot emit PC relative %s relocation"),
5753 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5756 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5760 /* This case happens when you write, for example,
5762 where L1 and L2 are defined later. */
5763 case BFD_RELOC_HI16
:
5766 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5770 case BFD_RELOC_HI16_S
:
5773 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5778 case BFD_RELOC_PPC64_HIGHER
:
5781 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5782 PPC_HIGHER (value
), 2);
5785 case BFD_RELOC_PPC64_HIGHER_S
:
5788 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5789 PPC_HIGHERA (value
), 2);
5792 case BFD_RELOC_PPC64_HIGHEST
:
5795 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5796 PPC_HIGHEST (value
), 2);
5799 case BFD_RELOC_PPC64_HIGHEST_S
:
5802 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5803 PPC_HIGHESTA (value
), 2);
5806 case BFD_RELOC_PPC64_ADDR16_DS
:
5807 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5808 case BFD_RELOC_PPC64_GOT16_DS
:
5809 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5810 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5811 case BFD_RELOC_PPC64_SECTOFF_DS
:
5812 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5813 case BFD_RELOC_PPC64_TOC16_DS
:
5814 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5815 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5816 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5820 unsigned char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5821 unsigned long val
, mask
;
5823 if (target_big_endian
)
5824 val
= bfd_getb32 (where
- 2);
5826 val
= bfd_getl32 (where
);
5828 /* lq insns reserve the four lsbs. */
5829 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5830 && (val
& (0x3f << 26)) == (56u << 26))
5832 val
|= value
& mask
;
5833 if (target_big_endian
)
5834 bfd_putb16 ((bfd_vma
) val
, where
);
5836 bfd_putl16 ((bfd_vma
) val
, where
);
5840 case BFD_RELOC_PPC_B16_BRTAKEN
:
5841 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5842 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5843 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5846 case BFD_RELOC_PPC_TLS
:
5847 case BFD_RELOC_PPC_DTPMOD
:
5848 case BFD_RELOC_PPC_TPREL16
:
5849 case BFD_RELOC_PPC_TPREL16_LO
:
5850 case BFD_RELOC_PPC_TPREL16_HI
:
5851 case BFD_RELOC_PPC_TPREL16_HA
:
5852 case BFD_RELOC_PPC_TPREL
:
5853 case BFD_RELOC_PPC_DTPREL16
:
5854 case BFD_RELOC_PPC_DTPREL16_LO
:
5855 case BFD_RELOC_PPC_DTPREL16_HI
:
5856 case BFD_RELOC_PPC_DTPREL16_HA
:
5857 case BFD_RELOC_PPC_DTPREL
:
5858 case BFD_RELOC_PPC_GOT_TLSGD16
:
5859 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5860 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5861 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5862 case BFD_RELOC_PPC_GOT_TLSLD16
:
5863 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5864 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5865 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5866 case BFD_RELOC_PPC_GOT_TPREL16
:
5867 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5868 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5869 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5870 case BFD_RELOC_PPC_GOT_DTPREL16
:
5871 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5872 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5873 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5874 case BFD_RELOC_PPC64_TPREL16_DS
:
5875 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5876 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5877 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5878 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5879 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5880 case BFD_RELOC_PPC64_DTPREL16_DS
:
5881 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5882 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5883 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5884 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5885 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5888 /* Because SDA21 modifies the register field, the size is set to 4
5889 bytes, rather than 2, so offset it here appropriately. */
5890 case BFD_RELOC_PPC_EMB_SDA21
:
5894 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5895 + ((target_big_endian
) ? 2 : 0),
5903 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5907 case BFD_RELOC_24_PLT_PCREL
:
5908 case BFD_RELOC_PPC_LOCAL24PC
:
5909 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5917 /* Fetch the instruction, insert the fully resolved operand
5918 value, and stuff the instruction back again. */
5919 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5920 if (target_big_endian
)
5921 insn
= bfd_getb32 ((unsigned char *) where
);
5923 insn
= bfd_getl32 ((unsigned char *) where
);
5924 if ((value
& 3) != 0)
5925 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5926 _("must branch to an address a multiple of 4"));
5927 if ((offsetT
) value
< -0x40000000
5928 || (offsetT
) value
>= 0x40000000)
5929 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5930 _("@local or @plt branch destination is too far away, %ld bytes"),
5932 insn
= insn
| (value
& 0x03fffffc);
5933 if (target_big_endian
)
5934 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5936 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5940 case BFD_RELOC_VTABLE_INHERIT
:
5943 && !S_IS_DEFINED (fixP
->fx_addsy
)
5944 && !S_IS_WEAK (fixP
->fx_addsy
))
5945 S_SET_WEAK (fixP
->fx_addsy
);
5948 case BFD_RELOC_VTABLE_ENTRY
:
5953 /* Generated by reference to `sym@tocbase'. The sym is
5954 ignored by the linker. */
5955 case BFD_RELOC_PPC64_TOC
:
5961 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
5968 fixP
->fx_addnumber
= value
;
5970 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
5971 fixP
->fx_addnumber
= 0;
5975 fixP
->fx_addnumber
= 0;
5977 /* We want to use the offset within the data segment of the
5978 symbol, not the actual VMA of the symbol. */
5979 fixP
->fx_addnumber
=
5980 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
5986 /* Generate a reloc for a fixup. */
5989 tc_gen_reloc (seg
, fixp
)
5990 asection
*seg ATTRIBUTE_UNUSED
;
5995 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
5997 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
5998 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
5999 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6000 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6001 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6003 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6004 _("reloc %d not supported by object file format"),
6005 (int) fixp
->fx_r_type
);
6008 reloc
->addend
= fixp
->fx_addnumber
;
6014 ppc_cfi_frame_initial_instructions ()
6016 cfi_add_CFA_def_cfa (1, 0);
6020 tc_ppc_regname_to_dw2regnum (const char *regname
)
6022 unsigned int regnum
= -1;
6026 static struct { char *name
; int dw2regnum
; } regnames
[] =
6028 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6029 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6030 { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6031 { "spe_acc", 111 }, { "spefscr", 112 }
6034 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6035 if (strcmp (regnames
[i
].name
, regname
) == 0)
6036 return regnames
[i
].dw2regnum
;
6038 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6040 p
= regname
+ 1 + (regname
[1] == '.');
6041 regnum
= strtoul (p
, &q
, 10);
6042 if (p
== q
|| *q
|| regnum
>= 32)
6044 if (regname
[0] == 'f')
6046 else if (regname
[0] == 'v')
6049 else if (regname
[0] == 'c' && regname
[1] == 'r')
6051 p
= regname
+ 2 + (regname
[2] == '.');
6052 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6054 regnum
= p
[0] - '0' + 68;