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 2004 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
)
1496 unsigned int length
: 8;
1497 unsigned int valid32
: 1;
1498 unsigned int valid64
: 1;
1507 const struct map_bfd
*ptr
;
1509 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1510 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1511 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1513 static const struct map_bfd mapping
[] = {
1514 MAP ("l", BFD_RELOC_LO16
),
1515 MAP ("h", BFD_RELOC_HI16
),
1516 MAP ("ha", BFD_RELOC_HI16_S
),
1517 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1518 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1519 MAP ("got", BFD_RELOC_16_GOTOFF
),
1520 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1521 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1522 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1523 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1524 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1525 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1526 MAP ("copy", BFD_RELOC_PPC_COPY
),
1527 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1528 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1529 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1530 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1531 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1532 MAP ("tls", BFD_RELOC_PPC_TLS
),
1533 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1534 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1535 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1536 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1537 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1538 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1539 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1540 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1541 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1542 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1543 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1544 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1545 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1546 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1547 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1548 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1549 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1550 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1551 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1552 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1553 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1554 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1555 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1556 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1557 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1558 MAP32 ("fixup", BFD_RELOC_CTOR
),
1559 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1560 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1561 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1562 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1563 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1564 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1565 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1566 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1567 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1568 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1569 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1570 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1571 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1572 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1573 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1574 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1575 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1576 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1577 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1578 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1579 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1580 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1581 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1582 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1583 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1584 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1585 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1586 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1587 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1588 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1589 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1590 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1591 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1592 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1593 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1594 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1595 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1596 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1597 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1598 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1599 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1603 return BFD_RELOC_UNUSED
;
1605 for (ch
= *str
, str2
= ident
;
1606 (str2
< ident
+ sizeof (ident
) - 1
1607 && (ISALNUM (ch
) || ch
== '@'));
1610 *str2
++ = TOLOWER (ch
);
1617 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1618 if (ch
== ptr
->string
[0]
1619 && len
== ptr
->length
1620 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1621 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1623 int reloc
= ptr
->reloc
;
1626 if (exp_p
->X_add_number
!= 0
1627 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1628 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1629 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1630 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1631 as_warn (_("identifier+constant@got means identifier@got+constant"));
1633 /* Now check for identifier@suffix+constant. */
1634 if (*str
== '-' || *str
== '+')
1636 char *orig_line
= input_line_pointer
;
1637 expressionS new_exp
;
1639 input_line_pointer
= str
;
1640 expression (&new_exp
);
1641 if (new_exp
.X_op
== O_constant
)
1643 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1644 str
= input_line_pointer
;
1647 if (&input_line_pointer
!= str_p
)
1648 input_line_pointer
= orig_line
;
1652 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1653 && exp_p
->X_op
== O_symbol
1654 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1656 /* Change the symbol so that the dummy .TOC. symbol can be
1657 omitted from the object file. */
1658 exp_p
->X_add_symbol
= &abs_symbol
;
1661 return (bfd_reloc_code_real_type
) reloc
;
1664 return BFD_RELOC_UNUSED
;
1667 /* Like normal .long/.short/.word, except support @got, etc.
1668 Clobbers input_line_pointer, checks end-of-line. */
1670 ppc_elf_cons (nbytes
)
1671 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1674 bfd_reloc_code_real_type reloc
;
1676 if (is_it_end_of_statement ())
1678 demand_empty_rest_of_line ();
1685 if (exp
.X_op
== O_symbol
1686 && *input_line_pointer
== '@'
1687 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1688 &exp
)) != BFD_RELOC_UNUSED
)
1690 reloc_howto_type
*reloc_howto
;
1693 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1694 size
= bfd_get_reloc_size (reloc_howto
);
1698 as_bad (_("%s relocations do not fit in %d bytes\n"),
1699 reloc_howto
->name
, nbytes
);
1706 p
= frag_more (nbytes
);
1708 if (target_big_endian
)
1709 offset
= nbytes
- size
;
1710 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1715 emit_expr (&exp
, (unsigned int) nbytes
);
1717 while (*input_line_pointer
++ == ',');
1719 /* Put terminator back into stream. */
1720 input_line_pointer
--;
1721 demand_empty_rest_of_line ();
1724 /* Solaris pseduo op to change to the .rodata section. */
1729 char *save_line
= input_line_pointer
;
1730 static char section
[] = ".rodata\n";
1732 /* Just pretend this is .section .rodata */
1733 input_line_pointer
= section
;
1734 obj_elf_section (xxx
);
1736 input_line_pointer
= save_line
;
1739 /* Pseudo op to make file scope bss items. */
1742 int xxx ATTRIBUTE_UNUSED
;
1744 register char *name
;
1748 register symbolS
*symbolP
;
1755 name
= input_line_pointer
;
1756 c
= get_symbol_end ();
1758 /* just after name is now '\0'. */
1759 p
= input_line_pointer
;
1762 if (*input_line_pointer
!= ',')
1764 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1765 ignore_rest_of_line ();
1769 input_line_pointer
++; /* skip ',' */
1770 if ((size
= get_absolute_expression ()) < 0)
1772 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1773 ignore_rest_of_line ();
1777 /* The third argument to .lcomm is the alignment. */
1778 if (*input_line_pointer
!= ',')
1782 ++input_line_pointer
;
1783 align
= get_absolute_expression ();
1786 as_warn (_("ignoring bad alignment"));
1792 symbolP
= symbol_find_or_make (name
);
1795 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1797 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1798 S_GET_NAME (symbolP
));
1799 ignore_rest_of_line ();
1803 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1805 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1806 S_GET_NAME (symbolP
),
1807 (long) S_GET_VALUE (symbolP
),
1810 ignore_rest_of_line ();
1816 old_subsec
= now_subseg
;
1819 /* Convert to a power of 2 alignment. */
1820 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1823 as_bad (_("Common alignment not a power of 2"));
1824 ignore_rest_of_line ();
1831 record_alignment (bss_section
, align2
);
1832 subseg_set (bss_section
, 0);
1834 frag_align (align2
, 0, 0);
1835 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1836 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1837 symbol_set_frag (symbolP
, frag_now
);
1838 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1841 S_SET_SIZE (symbolP
, size
);
1842 S_SET_SEGMENT (symbolP
, bss_section
);
1843 subseg_set (old_sec
, old_subsec
);
1844 demand_empty_rest_of_line ();
1847 /* Validate any relocations emitted for -mrelocatable, possibly adding
1848 fixups for word relocations in writable segments, so we can adjust
1851 ppc_elf_validate_fix (fixp
, seg
)
1855 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1864 case SHLIB_MRELOCATABLE
:
1865 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1866 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1867 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1868 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1869 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1870 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1871 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1872 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1873 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1874 && (seg
->flags
& SEC_LOAD
) != 0
1875 && strcmp (segment_name (seg
), ".got2") != 0
1876 && strcmp (segment_name (seg
), ".dtors") != 0
1877 && strcmp (segment_name (seg
), ".ctors") != 0
1878 && strcmp (segment_name (seg
), ".fixup") != 0
1879 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1880 && strcmp (segment_name (seg
), ".eh_frame") != 0
1881 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1883 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1884 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1886 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1887 _("Relocation cannot be done when using -mrelocatable"));
1894 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1895 function descriptor sym if the corresponding code sym is used. */
1898 ppc_frob_file_before_adjust ()
1905 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1912 name
= S_GET_NAME (symp
);
1916 if (! S_IS_WEAK (symp
)
1917 || S_IS_DEFINED (symp
))
1920 len
= strlen (name
) + 1;
1921 dotname
= xmalloc (len
+ 1);
1923 memcpy (dotname
+ 1, name
, len
);
1924 dotsym
= symbol_find (dotname
);
1926 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1927 || symbol_used_in_reloc_p (dotsym
)))
1929 symbol_mark_used (symp
);
1933 /* Don't emit .TOC. symbol. */
1934 symp
= symbol_find (".TOC.");
1936 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1938 #endif /* OBJ_ELF */
1943 * Summary of parse_toc_entry.
1945 * in: Input_line_pointer points to the '[' in one of:
1947 * [toc] [tocv] [toc32] [toc64]
1949 * Anything else is an error of one kind or another.
1952 * return value: success or failure
1953 * toc_kind: kind of toc reference
1954 * input_line_pointer:
1955 * success: first char after the ']'
1956 * failure: unchanged
1960 * [toc] - rv == success, toc_kind = default_toc
1961 * [tocv] - rv == success, toc_kind = data_in_toc
1962 * [toc32] - rv == success, toc_kind = must_be_32
1963 * [toc64] - rv == success, toc_kind = must_be_64
1967 enum toc_size_qualifier
1969 default_toc
, /* The toc cell constructed should be the system default size */
1970 data_in_toc
, /* This is a direct reference to a toc cell */
1971 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1972 must_be_64
/* The toc cell constructed must be 64 bits wide */
1976 parse_toc_entry (toc_kind
)
1977 enum toc_size_qualifier
*toc_kind
;
1982 enum toc_size_qualifier t
;
1984 /* Save the input_line_pointer. */
1985 start
= input_line_pointer
;
1987 /* Skip over the '[' , and whitespace. */
1988 ++input_line_pointer
;
1991 /* Find the spelling of the operand. */
1992 toc_spec
= input_line_pointer
;
1993 c
= get_symbol_end ();
1995 if (strcmp (toc_spec
, "toc") == 0)
1999 else if (strcmp (toc_spec
, "tocv") == 0)
2003 else if (strcmp (toc_spec
, "toc32") == 0)
2007 else if (strcmp (toc_spec
, "toc64") == 0)
2013 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2014 *input_line_pointer
= c
;
2015 input_line_pointer
= start
;
2019 /* Now find the ']'. */
2020 *input_line_pointer
= c
;
2022 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2023 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2027 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2028 input_line_pointer
= start
;
2039 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2041 ppc_apuinfo_section_add (apu
, version
)
2042 unsigned int apu
, version
;
2046 /* Check we don't already exist. */
2047 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2048 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2051 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2053 if (ppc_apuinfo_num_alloc
== 0)
2055 ppc_apuinfo_num_alloc
= 4;
2056 ppc_apuinfo_list
= (unsigned long *)
2057 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2061 ppc_apuinfo_num_alloc
+= 4;
2062 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2063 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2066 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2072 /* We need to keep a list of fixups. We can't simply generate them as
2073 we go, because that would require us to first create the frag, and
2074 that would screw up references to ``.''. */
2080 bfd_reloc_code_real_type reloc
;
2083 #define MAX_INSN_FIXUPS (5)
2085 /* This routine is called for each instruction to be assembled. */
2092 const struct powerpc_opcode
*opcode
;
2094 const unsigned char *opindex_ptr
;
2098 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2103 bfd_reloc_code_real_type reloc
;
2106 /* Get the opcode. */
2107 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2112 /* Look up the opcode in the hash table. */
2113 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2114 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2116 const struct powerpc_macro
*macro
;
2118 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2119 if (macro
== (const struct powerpc_macro
*) NULL
)
2120 as_bad (_("Unrecognized opcode: `%s'"), str
);
2122 ppc_macro (s
, macro
);
2127 insn
= opcode
->opcode
;
2130 while (ISSPACE (*str
))
2133 /* PowerPC operands are just expressions. The only real issue is
2134 that a few operand types are optional. All cases which might use
2135 an optional operand separate the operands only with commas (in some
2136 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2137 have optional operands). Most instructions with optional operands
2138 have only one. Those that have more than one optional operand can
2139 take either all their operands or none. So, before we start seriously
2140 parsing the operands, we check to see if we have optional operands,
2141 and if we do, we count the number of commas to see which operands
2142 have been omitted. */
2144 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2146 const struct powerpc_operand
*operand
;
2148 operand
= &powerpc_operands
[*opindex_ptr
];
2149 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2151 unsigned int opcount
;
2152 unsigned int num_operands_expected
;
2155 /* There is an optional operand. Count the number of
2156 commas in the input line. */
2163 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2170 /* Compute the number of expected operands.
2171 Do not count fake operands. */
2172 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2173 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2174 ++ num_operands_expected
;
2176 /* If there are fewer operands in the line then are called
2177 for by the instruction, we want to skip the optional
2179 if (opcount
< num_operands_expected
)
2186 /* Gather the operands. */
2190 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2192 const struct powerpc_operand
*operand
;
2198 if (next_opindex
== 0)
2199 operand
= &powerpc_operands
[*opindex_ptr
];
2202 operand
= &powerpc_operands
[next_opindex
];
2207 /* If this is a fake operand, then we do not expect anything
2209 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2211 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2212 if (errmsg
!= (const char *) NULL
)
2217 /* If this is an optional operand, and we are skipping it, just
2219 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2222 if (operand
->insert
)
2224 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2225 if (errmsg
!= (const char *) NULL
)
2228 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2229 next_opindex
= *opindex_ptr
+ 1;
2233 /* Gather the operand. */
2234 hold
= input_line_pointer
;
2235 input_line_pointer
= str
;
2238 if (*input_line_pointer
== '[')
2240 /* We are expecting something like the second argument here:
2242 * lwz r4,[toc].GS.0.static_int(rtoc)
2243 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2244 * The argument following the `]' must be a symbol name, and the
2245 * register must be the toc register: 'rtoc' or '2'
2247 * The effect is to 0 as the displacement field
2248 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2249 * the appropriate variation) reloc against it based on the symbol.
2250 * The linker will build the toc, and insert the resolved toc offset.
2253 * o The size of the toc entry is currently assumed to be
2254 * 32 bits. This should not be assumed to be a hard coded
2256 * o In an effort to cope with a change from 32 to 64 bits,
2257 * there are also toc entries that are specified to be
2258 * either 32 or 64 bits:
2259 * lwz r4,[toc32].GS.0.static_int(rtoc)
2260 * lwz r4,[toc64].GS.0.static_int(rtoc)
2261 * These demand toc entries of the specified size, and the
2262 * instruction probably requires it.
2266 enum toc_size_qualifier toc_kind
;
2267 bfd_reloc_code_real_type toc_reloc
;
2269 /* Go parse off the [tocXX] part. */
2270 valid_toc
= parse_toc_entry (&toc_kind
);
2274 /* Note: message has already been issued.
2275 FIXME: what sort of recovery should we do?
2276 demand_rest_of_line (); return; ? */
2279 /* Now get the symbol following the ']'. */
2285 /* In this case, we may not have seen the symbol yet,
2286 since it is allowed to appear on a .extern or .globl
2287 or just be a label in the .data section. */
2288 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2291 /* 1. The symbol must be defined and either in the toc
2292 section, or a global.
2293 2. The reloc generated must have the TOCDEFN flag set
2294 in upper bit mess of the reloc type.
2295 FIXME: It's a little confusing what the tocv
2296 qualifier can be used for. At the very least, I've
2297 seen three uses, only one of which I'm sure I can
2299 if (ex
.X_op
== O_symbol
)
2301 assert (ex
.X_add_symbol
!= NULL
);
2302 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2305 as_bad (_("[tocv] symbol is not a toc symbol"));
2309 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2312 /* FIXME: these next two specifically specify 32/64 bit
2313 toc entries. We don't support them today. Is this
2314 the right way to say that? */
2315 toc_reloc
= BFD_RELOC_UNUSED
;
2316 as_bad (_("Unimplemented toc32 expression modifier"));
2319 /* FIXME: see above. */
2320 toc_reloc
= BFD_RELOC_UNUSED
;
2321 as_bad (_("Unimplemented toc64 expression modifier"));
2325 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2331 /* We need to generate a fixup for this expression. */
2332 if (fc
>= MAX_INSN_FIXUPS
)
2333 as_fatal (_("too many fixups"));
2335 fixups
[fc
].reloc
= toc_reloc
;
2336 fixups
[fc
].exp
= ex
;
2337 fixups
[fc
].opindex
= *opindex_ptr
;
2340 /* Ok. We've set up the fixup for the instruction. Now make it
2341 look like the constant 0 was found here. */
2343 ex
.X_op
= O_constant
;
2344 ex
.X_add_number
= 0;
2345 ex
.X_add_symbol
= NULL
;
2346 ex
.X_op_symbol
= NULL
;
2352 if (! register_name (&ex
))
2354 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2361 str
= input_line_pointer
;
2362 input_line_pointer
= hold
;
2364 if (ex
.X_op
== O_illegal
)
2365 as_bad (_("illegal operand"));
2366 else if (ex
.X_op
== O_absent
)
2367 as_bad (_("missing operand"));
2368 else if (ex
.X_op
== O_register
)
2370 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2373 else if (ex
.X_op
== O_constant
)
2376 /* Allow @HA, @L, @H on constants. */
2377 char *orig_str
= str
;
2379 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2386 case BFD_RELOC_LO16
:
2387 /* X_unsigned is the default, so if the user has done
2388 something which cleared it, we always produce a
2390 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2391 ex
.X_add_number
&= 0xffff;
2393 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2396 case BFD_RELOC_HI16
:
2397 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2398 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2400 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2403 case BFD_RELOC_HI16_S
:
2404 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2405 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2407 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2410 case BFD_RELOC_PPC64_HIGHER
:
2411 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2412 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2414 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2417 case BFD_RELOC_PPC64_HIGHER_S
:
2418 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2419 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2421 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2424 case BFD_RELOC_PPC64_HIGHEST
:
2425 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2426 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2428 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2431 case BFD_RELOC_PPC64_HIGHEST_S
:
2432 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2433 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2435 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2438 #endif /* OBJ_ELF */
2439 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2443 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2445 /* Some TLS tweaks. */
2450 case BFD_RELOC_PPC_TLS
:
2451 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2454 /* We'll only use the 32 (or 64) bit form of these relocations
2455 in constants. Instructions get the 16 bit form. */
2456 case BFD_RELOC_PPC_DTPREL
:
2457 reloc
= BFD_RELOC_PPC_DTPREL16
;
2459 case BFD_RELOC_PPC_TPREL
:
2460 reloc
= BFD_RELOC_PPC_TPREL16
;
2464 /* For the absolute forms of branches, convert the PC
2465 relative form back into the absolute. */
2466 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2470 case BFD_RELOC_PPC_B26
:
2471 reloc
= BFD_RELOC_PPC_BA26
;
2473 case BFD_RELOC_PPC_B16
:
2474 reloc
= BFD_RELOC_PPC_BA16
;
2476 case BFD_RELOC_PPC_B16_BRTAKEN
:
2477 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2479 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2480 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2488 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2493 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2495 case BFD_RELOC_LO16
:
2496 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2498 case BFD_RELOC_16_GOTOFF
:
2499 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2501 case BFD_RELOC_LO16_GOTOFF
:
2502 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2504 case BFD_RELOC_LO16_PLTOFF
:
2505 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2507 case BFD_RELOC_16_BASEREL
:
2508 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2510 case BFD_RELOC_LO16_BASEREL
:
2511 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2513 case BFD_RELOC_PPC_TOC16
:
2514 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2516 case BFD_RELOC_PPC64_TOC16_LO
:
2517 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2519 case BFD_RELOC_PPC64_PLTGOT16
:
2520 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2522 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2523 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2525 case BFD_RELOC_PPC_DTPREL16
:
2526 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2528 case BFD_RELOC_PPC_DTPREL16_LO
:
2529 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2531 case BFD_RELOC_PPC_TPREL16
:
2532 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2534 case BFD_RELOC_PPC_TPREL16_LO
:
2535 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2537 case BFD_RELOC_PPC_GOT_DTPREL16
:
2538 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2539 case BFD_RELOC_PPC_GOT_TPREL16
:
2540 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2543 as_bad (_("unsupported relocation for DS offset field"));
2548 /* We need to generate a fixup for this expression. */
2549 if (fc
>= MAX_INSN_FIXUPS
)
2550 as_fatal (_("too many fixups"));
2551 fixups
[fc
].exp
= ex
;
2552 fixups
[fc
].opindex
= 0;
2553 fixups
[fc
].reloc
= reloc
;
2556 #endif /* OBJ_ELF */
2560 /* We need to generate a fixup for this expression. */
2561 if (fc
>= MAX_INSN_FIXUPS
)
2562 as_fatal (_("too many fixups"));
2563 fixups
[fc
].exp
= ex
;
2564 fixups
[fc
].opindex
= *opindex_ptr
;
2565 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2574 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2582 /* The call to expression should have advanced str past any
2585 && (endc
!= ',' || *str
!= '\0'))
2587 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2595 while (ISSPACE (*str
))
2599 as_bad (_("junk at end of line: `%s'"), str
);
2602 /* Do we need/want a APUinfo section? */
2603 if (ppc_cpu
& (PPC_OPCODE_SPE
2604 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2605 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2606 | PPC_OPCODE_RFMCI
))
2608 /* These are all version "1". */
2609 if (opcode
->flags
& PPC_OPCODE_SPE
)
2610 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2611 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2612 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2613 if (opcode
->flags
& PPC_OPCODE_EFS
)
2614 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2615 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2616 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2617 if (opcode
->flags
& PPC_OPCODE_PMR
)
2618 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2619 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2620 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2621 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2622 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2626 /* Write out the instruction. */
2628 md_number_to_chars (f
, insn
, 4);
2631 dwarf2_emit_insn (4);
2634 /* Create any fixups. At this point we do not use a
2635 bfd_reloc_code_real_type, but instead just use the
2636 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2637 handle fixups for any operand type, although that is admittedly
2638 not a very exciting feature. We pick a BFD reloc type in
2640 for (i
= 0; i
< fc
; i
++)
2642 const struct powerpc_operand
*operand
;
2644 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2645 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2647 reloc_howto_type
*reloc_howto
;
2652 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2656 size
= bfd_get_reloc_size (reloc_howto
);
2657 offset
= target_big_endian
? (4 - size
) : 0;
2659 if (size
< 1 || size
> 4)
2662 fixP
= fix_new_exp (frag_now
,
2663 f
- frag_now
->fr_literal
+ offset
,
2666 reloc_howto
->pc_relative
,
2669 /* Turn off complaints that the addend is too large for things like
2671 switch (fixups
[i
].reloc
)
2673 case BFD_RELOC_16_GOTOFF
:
2674 case BFD_RELOC_PPC_TOC16
:
2675 case BFD_RELOC_LO16
:
2676 case BFD_RELOC_HI16
:
2677 case BFD_RELOC_HI16_S
:
2679 case BFD_RELOC_PPC64_HIGHER
:
2680 case BFD_RELOC_PPC64_HIGHER_S
:
2681 case BFD_RELOC_PPC64_HIGHEST
:
2682 case BFD_RELOC_PPC64_HIGHEST_S
:
2684 fixP
->fx_no_overflow
= 1;
2691 fix_new_exp (frag_now
,
2692 f
- frag_now
->fr_literal
,
2695 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2696 ((bfd_reloc_code_real_type
)
2697 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2701 /* Handle a macro. Gather all the operands, transform them as
2702 described by the macro, and call md_assemble recursively. All the
2703 operands are separated by commas; we don't accept parentheses
2704 around operands here. */
2707 ppc_macro (str
, macro
)
2709 const struct powerpc_macro
*macro
;
2720 /* Gather the users operands into the operands array. */
2725 if (count
>= sizeof operands
/ sizeof operands
[0])
2727 operands
[count
++] = s
;
2728 s
= strchr (s
, ',');
2729 if (s
== (char *) NULL
)
2734 if (count
!= macro
->operands
)
2736 as_bad (_("wrong number of operands"));
2740 /* Work out how large the string must be (the size is unbounded
2741 because it includes user input). */
2743 format
= macro
->format
;
2744 while (*format
!= '\0')
2753 arg
= strtol (format
+ 1, &send
, 10);
2754 know (send
!= format
&& arg
>= 0 && arg
< count
);
2755 len
+= strlen (operands
[arg
]);
2760 /* Put the string together. */
2761 complete
= s
= (char *) alloca (len
+ 1);
2762 format
= macro
->format
;
2763 while (*format
!= '\0')
2769 arg
= strtol (format
+ 1, &send
, 10);
2770 strcpy (s
, operands
[arg
]);
2777 /* Assemble the constructed instruction. */
2778 md_assemble (complete
);
2782 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2785 ppc_section_letter (letter
, ptr_msg
)
2792 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2797 ppc_section_word (str
, len
)
2801 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2808 ppc_section_type (str
, len
)
2812 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2819 ppc_section_flags (flags
, attr
, type
)
2824 if (type
== SHT_ORDERED
)
2825 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2827 if (attr
& SHF_EXCLUDE
)
2828 flags
|= SEC_EXCLUDE
;
2832 #endif /* OBJ_ELF */
2835 /* Pseudo-op handling. */
2837 /* The .byte pseudo-op. This is similar to the normal .byte
2838 pseudo-op, but it can also take a single ASCII string. */
2842 int ignore ATTRIBUTE_UNUSED
;
2844 if (*input_line_pointer
!= '\"')
2850 /* Gather characters. A real double quote is doubled. Unusual
2851 characters are not permitted. */
2852 ++input_line_pointer
;
2857 c
= *input_line_pointer
++;
2861 if (*input_line_pointer
!= '\"')
2863 ++input_line_pointer
;
2866 FRAG_APPEND_1_CHAR (c
);
2869 demand_empty_rest_of_line ();
2874 /* XCOFF specific pseudo-op handling. */
2876 /* This is set if we are creating a .stabx symbol, since we don't want
2877 to handle symbol suffixes for such symbols. */
2878 static bfd_boolean ppc_stab_symbol
;
2880 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2881 symbols in the .bss segment as though they were local common
2882 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2883 aligns .comm and .lcomm to 4 bytes. */
2889 asection
*current_seg
= now_seg
;
2890 subsegT current_subseg
= now_subseg
;
2896 symbolS
*lcomm_sym
= NULL
;
2900 name
= input_line_pointer
;
2901 endc
= get_symbol_end ();
2902 end_name
= input_line_pointer
;
2905 if (*input_line_pointer
!= ',')
2907 as_bad (_("missing size"));
2908 ignore_rest_of_line ();
2911 ++input_line_pointer
;
2913 size
= get_absolute_expression ();
2916 as_bad (_("negative size"));
2917 ignore_rest_of_line ();
2923 /* The third argument to .comm is the alignment. */
2924 if (*input_line_pointer
!= ',')
2928 ++input_line_pointer
;
2929 align
= get_absolute_expression ();
2932 as_warn (_("ignoring bad alignment"));
2947 /* The third argument to .lcomm appears to be the real local
2948 common symbol to create. References to the symbol named in
2949 the first argument are turned into references to the third
2951 if (*input_line_pointer
!= ',')
2953 as_bad (_("missing real symbol name"));
2954 ignore_rest_of_line ();
2957 ++input_line_pointer
;
2959 lcomm_name
= input_line_pointer
;
2960 lcomm_endc
= get_symbol_end ();
2962 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2964 *input_line_pointer
= lcomm_endc
;
2968 sym
= symbol_find_or_make (name
);
2971 if (S_IS_DEFINED (sym
)
2972 || S_GET_VALUE (sym
) != 0)
2974 as_bad (_("attempt to redefine symbol"));
2975 ignore_rest_of_line ();
2979 record_alignment (bss_section
, align
);
2982 || ! S_IS_DEFINED (lcomm_sym
))
2991 S_SET_EXTERNAL (sym
);
2995 symbol_get_tc (lcomm_sym
)->output
= 1;
2996 def_sym
= lcomm_sym
;
3000 subseg_set (bss_section
, 1);
3001 frag_align (align
, 0, 0);
3003 symbol_set_frag (def_sym
, frag_now
);
3004 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3005 def_size
, (char *) NULL
);
3007 S_SET_SEGMENT (def_sym
, bss_section
);
3008 symbol_get_tc (def_sym
)->align
= align
;
3012 /* Align the size of lcomm_sym. */
3013 symbol_get_frag (lcomm_sym
)->fr_offset
=
3014 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3015 &~ ((1 << align
) - 1));
3016 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3017 symbol_get_tc (lcomm_sym
)->align
= align
;
3022 /* Make sym an offset from lcomm_sym. */
3023 S_SET_SEGMENT (sym
, bss_section
);
3024 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3025 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3026 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3029 subseg_set (current_seg
, current_subseg
);
3031 demand_empty_rest_of_line ();
3034 /* The .csect pseudo-op. This switches us into a different
3035 subsegment. The first argument is a symbol whose value is the
3036 start of the .csect. In COFF, csect symbols get special aux
3037 entries defined by the x_csect field of union internal_auxent. The
3038 optional second argument is the alignment (the default is 2). */
3042 int ignore ATTRIBUTE_UNUSED
;
3049 name
= input_line_pointer
;
3050 endc
= get_symbol_end ();
3052 sym
= symbol_find_or_make (name
);
3054 *input_line_pointer
= endc
;
3056 if (S_GET_NAME (sym
)[0] == '\0')
3058 /* An unnamed csect is assumed to be [PR]. */
3059 symbol_get_tc (sym
)->class = XMC_PR
;
3063 if (*input_line_pointer
== ',')
3065 ++input_line_pointer
;
3066 align
= get_absolute_expression ();
3069 ppc_change_csect (sym
, align
);
3071 demand_empty_rest_of_line ();
3074 /* Change to a different csect. */
3077 ppc_change_csect (sym
, align
)
3081 if (S_IS_DEFINED (sym
))
3082 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3092 /* This is a new csect. We need to look at the symbol class to
3093 figure out whether it should go in the text section or the
3097 switch (symbol_get_tc (sym
)->class)
3107 S_SET_SEGMENT (sym
, text_section
);
3108 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3109 ++ppc_text_subsegment
;
3110 list_ptr
= &ppc_text_csects
;
3120 if (ppc_toc_csect
!= NULL
3121 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3122 == ppc_data_subsegment
))
3124 S_SET_SEGMENT (sym
, data_section
);
3125 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3126 ++ppc_data_subsegment
;
3127 list_ptr
= &ppc_data_csects
;
3133 /* We set the obstack chunk size to a small value before
3134 changing subsegments, so that we don't use a lot of memory
3135 space for what may be a small section. */
3136 hold_chunksize
= chunksize
;
3139 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3140 symbol_get_tc (sym
)->subseg
);
3142 chunksize
= hold_chunksize
;
3145 ppc_after_toc_frag
= frag_now
;
3147 record_alignment (sec
, align
);
3149 frag_align_code (align
, 0);
3151 frag_align (align
, 0, 0);
3153 symbol_set_frag (sym
, frag_now
);
3154 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3156 symbol_get_tc (sym
)->align
= align
;
3157 symbol_get_tc (sym
)->output
= 1;
3158 symbol_get_tc (sym
)->within
= sym
;
3160 for (list
= *list_ptr
;
3161 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3162 list
= symbol_get_tc (list
)->next
)
3164 symbol_get_tc (list
)->next
= sym
;
3166 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3167 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3171 ppc_current_csect
= sym
;
3174 /* This function handles the .text and .data pseudo-ops. These
3175 pseudo-ops aren't really used by XCOFF; we implement them for the
3176 convenience of people who aren't used to XCOFF. */
3187 else if (type
== 'd')
3192 sym
= symbol_find_or_make (name
);
3194 ppc_change_csect (sym
, 2);
3196 demand_empty_rest_of_line ();
3199 /* This function handles the .section pseudo-op. This is mostly to
3200 give an error, since XCOFF only supports .text, .data and .bss, but
3201 we do permit the user to name the text or data section. */
3204 ppc_named_section (ignore
)
3205 int ignore ATTRIBUTE_UNUSED
;
3208 const char *real_name
;
3212 user_name
= input_line_pointer
;
3213 c
= get_symbol_end ();
3215 if (strcmp (user_name
, ".text") == 0)
3216 real_name
= ".text[PR]";
3217 else if (strcmp (user_name
, ".data") == 0)
3218 real_name
= ".data[RW]";
3221 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3222 *input_line_pointer
= c
;
3223 ignore_rest_of_line ();
3227 *input_line_pointer
= c
;
3229 sym
= symbol_find_or_make (real_name
);
3231 ppc_change_csect (sym
, 2);
3233 demand_empty_rest_of_line ();
3236 /* The .extern pseudo-op. We create an undefined symbol. */
3240 int ignore ATTRIBUTE_UNUSED
;
3245 name
= input_line_pointer
;
3246 endc
= get_symbol_end ();
3248 (void) symbol_find_or_make (name
);
3250 *input_line_pointer
= endc
;
3252 demand_empty_rest_of_line ();
3255 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3259 int ignore ATTRIBUTE_UNUSED
;
3265 name
= input_line_pointer
;
3266 endc
= get_symbol_end ();
3268 sym
= symbol_find_or_make (name
);
3270 *input_line_pointer
= endc
;
3272 symbol_get_tc (sym
)->output
= 1;
3274 demand_empty_rest_of_line ();
3277 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3278 although I don't know why it bothers. */
3282 int ignore ATTRIBUTE_UNUSED
;
3289 name
= input_line_pointer
;
3290 endc
= get_symbol_end ();
3292 sym
= symbol_find_or_make (name
);
3294 *input_line_pointer
= endc
;
3296 if (*input_line_pointer
!= ',')
3298 as_bad (_("missing rename string"));
3299 ignore_rest_of_line ();
3302 ++input_line_pointer
;
3304 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3306 demand_empty_rest_of_line ();
3309 /* The .stabx pseudo-op. This is similar to a normal .stabs
3310 pseudo-op, but slightly different. A sample is
3311 .stabx "main:F-1",.main,142,0
3312 The first argument is the symbol name to create. The second is the
3313 value, and the third is the storage class. The fourth seems to be
3314 always zero, and I am assuming it is the type. */
3318 int ignore ATTRIBUTE_UNUSED
;
3325 name
= demand_copy_C_string (&len
);
3327 if (*input_line_pointer
!= ',')
3329 as_bad (_("missing value"));
3332 ++input_line_pointer
;
3334 ppc_stab_symbol
= TRUE
;
3335 sym
= symbol_make (name
);
3336 ppc_stab_symbol
= FALSE
;
3338 symbol_get_tc (sym
)->real_name
= name
;
3340 (void) expression (&exp
);
3347 as_bad (_("illegal .stabx expression; zero assumed"));
3348 exp
.X_add_number
= 0;
3351 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3352 symbol_set_frag (sym
, &zero_address_frag
);
3356 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3357 symbol_set_value_expression (sym
, &exp
);
3361 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3362 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3367 /* The value is some complex expression. This will probably
3368 fail at some later point, but this is probably the right
3369 thing to do here. */
3370 symbol_set_value_expression (sym
, &exp
);
3374 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3375 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3377 if (*input_line_pointer
!= ',')
3379 as_bad (_("missing class"));
3382 ++input_line_pointer
;
3384 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3386 if (*input_line_pointer
!= ',')
3388 as_bad (_("missing type"));
3391 ++input_line_pointer
;
3393 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3395 symbol_get_tc (sym
)->output
= 1;
3397 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3399 symbol_get_tc (sym
)->within
= ppc_current_block
;
3404 .stabx "z",arrays_,133,0
3407 .comm arrays_,13768,3
3409 resolve_symbol_value will copy the exp's "within" into sym's when the
3410 offset is 0. Since this seems to be corner case problem,
3411 only do the correction for storage class C_STSYM. A better solution
3412 would be to have the tc field updated in ppc_symbol_new_hook. */
3414 if (exp
.X_op
== O_symbol
)
3416 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3420 if (exp
.X_op
!= O_symbol
3421 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3422 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3423 ppc_frob_label (sym
);
3426 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3427 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3428 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3429 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3432 demand_empty_rest_of_line ();
3435 /* The .function pseudo-op. This takes several arguments. The first
3436 argument seems to be the external name of the symbol. The second
3437 argument seems to be the label for the start of the function. gcc
3438 uses the same name for both. I have no idea what the third and
3439 fourth arguments are meant to be. The optional fifth argument is
3440 an expression for the size of the function. In COFF this symbol
3441 gets an aux entry like that used for a csect. */
3444 ppc_function (ignore
)
3445 int ignore ATTRIBUTE_UNUSED
;
3453 name
= input_line_pointer
;
3454 endc
= get_symbol_end ();
3456 /* Ignore any [PR] suffix. */
3457 name
= ppc_canonicalize_symbol_name (name
);
3458 s
= strchr (name
, '[');
3459 if (s
!= (char *) NULL
3460 && strcmp (s
+ 1, "PR]") == 0)
3463 ext_sym
= symbol_find_or_make (name
);
3465 *input_line_pointer
= endc
;
3467 if (*input_line_pointer
!= ',')
3469 as_bad (_("missing symbol name"));
3470 ignore_rest_of_line ();
3473 ++input_line_pointer
;
3475 name
= input_line_pointer
;
3476 endc
= get_symbol_end ();
3478 lab_sym
= symbol_find_or_make (name
);
3480 *input_line_pointer
= endc
;
3482 if (ext_sym
!= lab_sym
)
3486 exp
.X_op
= O_symbol
;
3487 exp
.X_add_symbol
= lab_sym
;
3488 exp
.X_op_symbol
= NULL
;
3489 exp
.X_add_number
= 0;
3491 symbol_set_value_expression (ext_sym
, &exp
);
3494 if (symbol_get_tc (ext_sym
)->class == -1)
3495 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3496 symbol_get_tc (ext_sym
)->output
= 1;
3498 if (*input_line_pointer
== ',')
3502 /* Ignore the third argument. */
3503 ++input_line_pointer
;
3504 expression (&ignore
);
3505 if (*input_line_pointer
== ',')
3507 /* Ignore the fourth argument. */
3508 ++input_line_pointer
;
3509 expression (&ignore
);
3510 if (*input_line_pointer
== ',')
3512 /* The fifth argument is the function size. */
3513 ++input_line_pointer
;
3514 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3517 &zero_address_frag
);
3518 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3523 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3524 SF_SET_FUNCTION (ext_sym
);
3525 SF_SET_PROCESS (ext_sym
);
3526 coff_add_linesym (ext_sym
);
3528 demand_empty_rest_of_line ();
3531 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3532 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3533 with the correct line number */
3535 static symbolS
*saved_bi_sym
= 0;
3539 int ignore ATTRIBUTE_UNUSED
;
3543 sym
= symbol_make (".bf");
3544 S_SET_SEGMENT (sym
, text_section
);
3545 symbol_set_frag (sym
, frag_now
);
3546 S_SET_VALUE (sym
, frag_now_fix ());
3547 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3549 coff_line_base
= get_absolute_expression ();
3551 S_SET_NUMBER_AUXILIARY (sym
, 1);
3552 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3554 /* Line number for bi. */
3557 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3562 symbol_get_tc (sym
)->output
= 1;
3564 ppc_frob_label (sym
);
3566 demand_empty_rest_of_line ();
3569 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3570 ".ef", except that the line number is absolute, not relative to the
3571 most recent ".bf" symbol. */
3575 int ignore ATTRIBUTE_UNUSED
;
3579 sym
= symbol_make (".ef");
3580 S_SET_SEGMENT (sym
, text_section
);
3581 symbol_set_frag (sym
, frag_now
);
3582 S_SET_VALUE (sym
, frag_now_fix ());
3583 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3584 S_SET_NUMBER_AUXILIARY (sym
, 1);
3585 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3586 symbol_get_tc (sym
)->output
= 1;
3588 ppc_frob_label (sym
);
3590 demand_empty_rest_of_line ();
3593 /* The .bi and .ei pseudo-ops. These take a string argument and
3594 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3595 the symbol list. The value of .bi will be know when the next .bf
3602 static symbolS
*last_biei
;
3609 name
= demand_copy_C_string (&len
);
3611 /* The value of these symbols is actually file offset. Here we set
3612 the value to the index into the line number entries. In
3613 ppc_frob_symbols we set the fix_line field, which will cause BFD
3614 to do the right thing. */
3616 sym
= symbol_make (name
);
3617 /* obj-coff.c currently only handles line numbers correctly in the
3619 S_SET_SEGMENT (sym
, text_section
);
3620 S_SET_VALUE (sym
, coff_n_line_nos
);
3621 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3623 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3624 symbol_get_tc (sym
)->output
= 1;
3632 for (look
= last_biei
? last_biei
: symbol_rootP
;
3633 (look
!= (symbolS
*) NULL
3634 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3635 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3636 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3637 look
= symbol_next (look
))
3639 if (look
!= (symbolS
*) NULL
)
3641 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3642 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3646 demand_empty_rest_of_line ();
3649 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3650 There is one argument, which is a csect symbol. The value of the
3651 .bs symbol is the index of this csect symbol. */
3655 int ignore ATTRIBUTE_UNUSED
;
3662 if (ppc_current_block
!= NULL
)
3663 as_bad (_("nested .bs blocks"));
3665 name
= input_line_pointer
;
3666 endc
= get_symbol_end ();
3668 csect
= symbol_find_or_make (name
);
3670 *input_line_pointer
= endc
;
3672 sym
= symbol_make (".bs");
3673 S_SET_SEGMENT (sym
, now_seg
);
3674 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3675 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3676 symbol_get_tc (sym
)->output
= 1;
3678 symbol_get_tc (sym
)->within
= csect
;
3680 ppc_frob_label (sym
);
3682 ppc_current_block
= sym
;
3684 demand_empty_rest_of_line ();
3687 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3691 int ignore ATTRIBUTE_UNUSED
;
3695 if (ppc_current_block
== NULL
)
3696 as_bad (_(".es without preceding .bs"));
3698 sym
= symbol_make (".es");
3699 S_SET_SEGMENT (sym
, now_seg
);
3700 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3701 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3702 symbol_get_tc (sym
)->output
= 1;
3704 ppc_frob_label (sym
);
3706 ppc_current_block
= NULL
;
3708 demand_empty_rest_of_line ();
3711 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3716 int ignore ATTRIBUTE_UNUSED
;
3720 sym
= symbol_make (".bb");
3721 S_SET_SEGMENT (sym
, text_section
);
3722 symbol_set_frag (sym
, frag_now
);
3723 S_SET_VALUE (sym
, frag_now_fix ());
3724 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3726 S_SET_NUMBER_AUXILIARY (sym
, 1);
3727 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3729 symbol_get_tc (sym
)->output
= 1;
3731 SF_SET_PROCESS (sym
);
3733 ppc_frob_label (sym
);
3735 demand_empty_rest_of_line ();
3738 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3743 int ignore ATTRIBUTE_UNUSED
;
3747 sym
= symbol_make (".eb");
3748 S_SET_SEGMENT (sym
, text_section
);
3749 symbol_set_frag (sym
, frag_now
);
3750 S_SET_VALUE (sym
, frag_now_fix ());
3751 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3752 S_SET_NUMBER_AUXILIARY (sym
, 1);
3753 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3754 symbol_get_tc (sym
)->output
= 1;
3756 SF_SET_PROCESS (sym
);
3758 ppc_frob_label (sym
);
3760 demand_empty_rest_of_line ();
3763 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3768 int ignore ATTRIBUTE_UNUSED
;
3774 name
= demand_copy_C_string (&len
);
3775 sym
= symbol_make (name
);
3776 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3777 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3778 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3779 S_SET_VALUE (sym
, 0);
3780 symbol_get_tc (sym
)->output
= 1;
3782 ppc_frob_label (sym
);
3784 demand_empty_rest_of_line ();
3787 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3791 int ignore ATTRIBUTE_UNUSED
;
3795 sym
= symbol_make (".ec");
3796 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3797 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3798 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3799 S_SET_VALUE (sym
, 0);
3800 symbol_get_tc (sym
)->output
= 1;
3802 ppc_frob_label (sym
);
3804 demand_empty_rest_of_line ();
3807 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3811 int ignore ATTRIBUTE_UNUSED
;
3813 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3814 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3821 subseg
= ppc_data_subsegment
;
3822 ++ppc_data_subsegment
;
3824 subseg_new (segment_name (data_section
), subseg
);
3825 ppc_toc_frag
= frag_now
;
3827 sym
= symbol_find_or_make ("TOC[TC0]");
3828 symbol_set_frag (sym
, frag_now
);
3829 S_SET_SEGMENT (sym
, data_section
);
3830 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3831 symbol_get_tc (sym
)->subseg
= subseg
;
3832 symbol_get_tc (sym
)->output
= 1;
3833 symbol_get_tc (sym
)->within
= sym
;
3835 ppc_toc_csect
= sym
;
3837 for (list
= ppc_data_csects
;
3838 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3839 list
= symbol_get_tc (list
)->next
)
3841 symbol_get_tc (list
)->next
= sym
;
3843 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3844 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3848 ppc_current_csect
= ppc_toc_csect
;
3850 demand_empty_rest_of_line ();
3853 /* The AIX assembler automatically aligns the operands of a .long or
3854 .short pseudo-op, and we want to be compatible. */
3857 ppc_xcoff_cons (log_size
)
3860 frag_align (log_size
, 0, 0);
3861 record_alignment (now_seg
, log_size
);
3862 cons (1 << log_size
);
3867 int dummy ATTRIBUTE_UNUSED
;
3872 (void) expression (&exp
);
3874 if (exp
.X_op
!= O_constant
)
3876 as_bad (_("non-constant byte count"));
3880 byte_count
= exp
.X_add_number
;
3882 if (*input_line_pointer
!= ',')
3884 as_bad (_("missing value"));
3888 ++input_line_pointer
;
3892 #endif /* OBJ_XCOFF */
3893 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3895 /* The .tc pseudo-op. This is used when generating either XCOFF or
3896 ELF. This takes two or more arguments.
3898 When generating XCOFF output, the first argument is the name to
3899 give to this location in the toc; this will be a symbol with class
3900 TC. The rest of the arguments are N-byte values to actually put at
3901 this location in the TOC; often there is just one more argument, a
3902 relocatable symbol reference. The size of the value to store
3903 depends on target word size. A 32-bit target uses 4-byte values, a
3904 64-bit target uses 8-byte values.
3906 When not generating XCOFF output, the arguments are the same, but
3907 the first argument is simply ignored. */
3911 int ignore ATTRIBUTE_UNUSED
;
3915 /* Define the TOC symbol name. */
3921 if (ppc_toc_csect
== (symbolS
*) NULL
3922 || ppc_toc_csect
!= ppc_current_csect
)
3924 as_bad (_(".tc not in .toc section"));
3925 ignore_rest_of_line ();
3929 name
= input_line_pointer
;
3930 endc
= get_symbol_end ();
3932 sym
= symbol_find_or_make (name
);
3934 *input_line_pointer
= endc
;
3936 if (S_IS_DEFINED (sym
))
3940 label
= symbol_get_tc (ppc_current_csect
)->within
;
3941 if (symbol_get_tc (label
)->class != XMC_TC0
)
3943 as_bad (_(".tc with no label"));
3944 ignore_rest_of_line ();
3948 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3949 symbol_set_frag (label
, symbol_get_frag (sym
));
3950 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3952 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3953 ++input_line_pointer
;
3958 S_SET_SEGMENT (sym
, now_seg
);
3959 symbol_set_frag (sym
, frag_now
);
3960 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3961 symbol_get_tc (sym
)->class = XMC_TC
;
3962 symbol_get_tc (sym
)->output
= 1;
3964 ppc_frob_label (sym
);
3967 #endif /* OBJ_XCOFF */
3971 /* Skip the TOC symbol name. */
3972 while (is_part_of_name (*input_line_pointer
)
3973 || *input_line_pointer
== '['
3974 || *input_line_pointer
== ']'
3975 || *input_line_pointer
== '{'
3976 || *input_line_pointer
== '}')
3977 ++input_line_pointer
;
3979 /* Align to a four/eight byte boundary. */
3980 align
= ppc_obj64
? 3 : 2;
3981 frag_align (align
, 0, 0);
3982 record_alignment (now_seg
, align
);
3983 #endif /* OBJ_ELF */
3985 if (*input_line_pointer
!= ',')
3986 demand_empty_rest_of_line ();
3989 ++input_line_pointer
;
3990 cons (ppc_obj64
? 8 : 4);
3994 /* Pseudo-op .machine. */
3997 ppc_machine (ignore
)
3998 int ignore ATTRIBUTE_UNUSED
;
4001 #define MAX_HISTORY 100
4002 static unsigned long *cpu_history
;
4003 static int curr_hist
;
4007 if (*input_line_pointer
== '"')
4010 cpu_string
= demand_copy_C_string (&len
);
4015 cpu_string
= input_line_pointer
;
4016 c
= get_symbol_end ();
4017 cpu_string
= xstrdup (cpu_string
);
4018 *input_line_pointer
= c
;
4021 if (cpu_string
!= NULL
)
4023 unsigned long old_cpu
= ppc_cpu
;
4026 for (p
= cpu_string
; *p
!= 0; p
++)
4029 if (strcmp (cpu_string
, "push") == 0)
4031 if (cpu_history
== NULL
)
4032 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4034 if (curr_hist
>= MAX_HISTORY
)
4035 as_bad (_(".machine stack overflow"));
4037 cpu_history
[curr_hist
++] = ppc_cpu
;
4039 else if (strcmp (cpu_string
, "pop") == 0)
4042 as_bad (_(".machine stack underflow"));
4044 ppc_cpu
= cpu_history
[--curr_hist
];
4046 else if (parse_cpu (cpu_string
))
4049 as_bad (_("invalid machine `%s'"), cpu_string
);
4051 if (ppc_cpu
!= old_cpu
)
4052 ppc_setup_opcodes ();
4055 demand_empty_rest_of_line ();
4058 /* See whether a symbol is in the TOC section. */
4061 ppc_is_toc_sym (sym
)
4065 return symbol_get_tc (sym
)->class == XMC_TC
;
4068 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4070 return strcmp (sname
, ".toc") == 0;
4072 return strcmp (sname
, ".got") == 0;
4075 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4079 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4081 /* Set the current section. */
4083 ppc_set_current_section (new)
4086 ppc_previous_section
= ppc_current_section
;
4087 ppc_current_section
= new;
4090 /* pseudo-op: .previous
4091 behaviour: toggles the current section with the previous section.
4093 warnings: "No previous section" */
4096 ppc_previous (ignore
)
4097 int ignore ATTRIBUTE_UNUSED
;
4101 if (ppc_previous_section
== NULL
)
4103 as_warn (_("No previous section to return to. Directive ignored."));
4107 subseg_set (ppc_previous_section
, 0);
4109 ppc_set_current_section (ppc_previous_section
);
4112 /* pseudo-op: .pdata
4113 behaviour: predefined read only data section
4117 initial: .section .pdata "adr3"
4118 a - don't know -- maybe a misprint
4119 d - initialized data
4121 3 - double word aligned (that would be 4 byte boundary)
4124 Tag index tables (also known as the function table) for exception
4125 handling, debugging, etc. */
4129 int ignore ATTRIBUTE_UNUSED
;
4131 if (pdata_section
== 0)
4133 pdata_section
= subseg_new (".pdata", 0);
4135 bfd_set_section_flags (stdoutput
, pdata_section
,
4136 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4137 | SEC_READONLY
| SEC_DATA
));
4139 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4143 pdata_section
= subseg_new (".pdata", 0);
4145 ppc_set_current_section (pdata_section
);
4148 /* pseudo-op: .ydata
4149 behaviour: predefined read only data section
4153 initial: .section .ydata "drw3"
4154 a - don't know -- maybe a misprint
4155 d - initialized data
4157 3 - double word aligned (that would be 4 byte boundary)
4159 Tag tables (also known as the scope table) for exception handling,
4164 int ignore ATTRIBUTE_UNUSED
;
4166 if (ydata_section
== 0)
4168 ydata_section
= subseg_new (".ydata", 0);
4169 bfd_set_section_flags (stdoutput
, ydata_section
,
4170 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4171 | SEC_READONLY
| SEC_DATA
));
4173 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4177 ydata_section
= subseg_new (".ydata", 0);
4179 ppc_set_current_section (ydata_section
);
4182 /* pseudo-op: .reldata
4183 behaviour: predefined read write data section
4184 double word aligned (4-byte)
4185 FIXME: relocation is applied to it
4186 FIXME: what's the difference between this and .data?
4189 initial: .section .reldata "drw3"
4190 d - initialized data
4193 3 - double word aligned (that would be 8 byte boundary)
4196 Like .data, but intended to hold data subject to relocation, such as
4197 function descriptors, etc. */
4200 ppc_reldata (ignore
)
4201 int ignore ATTRIBUTE_UNUSED
;
4203 if (reldata_section
== 0)
4205 reldata_section
= subseg_new (".reldata", 0);
4207 bfd_set_section_flags (stdoutput
, reldata_section
,
4208 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4211 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4215 reldata_section
= subseg_new (".reldata", 0);
4217 ppc_set_current_section (reldata_section
);
4220 /* pseudo-op: .rdata
4221 behaviour: predefined read only data section
4225 initial: .section .rdata "dr3"
4226 d - initialized data
4228 3 - double word aligned (that would be 4 byte boundary) */
4232 int ignore ATTRIBUTE_UNUSED
;
4234 if (rdata_section
== 0)
4236 rdata_section
= subseg_new (".rdata", 0);
4237 bfd_set_section_flags (stdoutput
, rdata_section
,
4238 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4239 | SEC_READONLY
| SEC_DATA
));
4241 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4245 rdata_section
= subseg_new (".rdata", 0);
4247 ppc_set_current_section (rdata_section
);
4250 /* pseudo-op: .ualong
4251 behaviour: much like .int, with the exception that no alignment is
4253 FIXME: test the alignment statement
4259 int ignore ATTRIBUTE_UNUSED
;
4265 /* pseudo-op: .znop <symbol name>
4266 behaviour: Issue a nop instruction
4267 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4268 the supplied symbol name.
4270 warnings: Missing symbol name */
4274 int ignore ATTRIBUTE_UNUSED
;
4277 const struct powerpc_opcode
*opcode
;
4288 /* Strip out the symbol name. */
4289 symbol_name
= input_line_pointer
;
4290 c
= get_symbol_end ();
4292 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4293 strcpy (name
, symbol_name
);
4295 sym
= symbol_find_or_make (name
);
4297 *input_line_pointer
= c
;
4301 /* Look up the opcode in the hash table. */
4302 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4304 /* Stick in the nop. */
4305 insn
= opcode
->opcode
;
4307 /* Write out the instruction. */
4309 md_number_to_chars (f
, insn
, 4);
4311 f
- frag_now
->fr_literal
,
4316 BFD_RELOC_16_GOT_PCREL
);
4329 register char *name
;
4333 register symbolS
*symbolP
;
4336 name
= input_line_pointer
;
4337 c
= get_symbol_end ();
4339 /* just after name is now '\0'. */
4340 p
= input_line_pointer
;
4343 if (*input_line_pointer
!= ',')
4345 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4346 ignore_rest_of_line ();
4350 input_line_pointer
++; /* skip ',' */
4351 if ((temp
= get_absolute_expression ()) < 0)
4353 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4354 ignore_rest_of_line ();
4360 /* The third argument to .comm is the alignment. */
4361 if (*input_line_pointer
!= ',')
4365 ++input_line_pointer
;
4366 align
= get_absolute_expression ();
4369 as_warn (_("ignoring bad alignment"));
4376 symbolP
= symbol_find_or_make (name
);
4379 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4381 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4382 S_GET_NAME (symbolP
));
4383 ignore_rest_of_line ();
4387 if (S_GET_VALUE (symbolP
))
4389 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4390 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4391 S_GET_NAME (symbolP
),
4392 (long) S_GET_VALUE (symbolP
),
4397 S_SET_VALUE (symbolP
, (valueT
) temp
);
4398 S_SET_EXTERNAL (symbolP
);
4401 demand_empty_rest_of_line ();
4405 * implement the .section pseudo op:
4406 * .section name {, "flags"}
4408 * | +--- optional flags: 'b' for bss
4410 * +-- section name 'l' for lib
4414 * 'd' (apparently m88k for data)
4416 * But if the argument is not a quoted string, treat it as a
4417 * subsegment number.
4419 * FIXME: this is a copy of the section processing from obj-coff.c, with
4420 * additions/changes for the moto-pas assembler support. There are three
4423 * FIXME: I just noticed this. This doesn't work at all really. It it
4424 * setting bits that bfd probably neither understands or uses. The
4425 * correct approach (?) will have to incorporate extra fields attached
4426 * to the section to hold the system specific stuff. (krk)
4429 * 'a' - unknown - referred to in documentation, but no definition supplied
4430 * 'c' - section has code
4431 * 'd' - section has initialized data
4432 * 'u' - section has uninitialized data
4433 * 'i' - section contains directives (info)
4434 * 'n' - section can be discarded
4435 * 'R' - remove section at link time
4437 * Section Protection:
4438 * 'r' - section is readable
4439 * 'w' - section is writeable
4440 * 'x' - section is executable
4441 * 's' - section is sharable
4443 * Section Alignment:
4444 * '0' - align to byte boundary
4445 * '1' - align to halfword undary
4446 * '2' - align to word boundary
4447 * '3' - align to doubleword boundary
4448 * '4' - align to quadword boundary
4449 * '5' - align to 32 byte boundary
4450 * '6' - align to 64 byte boundary
4455 ppc_pe_section (ignore
)
4456 int ignore ATTRIBUTE_UNUSED
;
4458 /* Strip out the section name. */
4467 section_name
= input_line_pointer
;
4468 c
= get_symbol_end ();
4470 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4471 strcpy (name
, section_name
);
4473 *input_line_pointer
= c
;
4478 flags
= SEC_NO_FLAGS
;
4480 if (strcmp (name
, ".idata$2") == 0)
4484 else if (strcmp (name
, ".idata$3") == 0)
4488 else if (strcmp (name
, ".idata$4") == 0)
4492 else if (strcmp (name
, ".idata$5") == 0)
4496 else if (strcmp (name
, ".idata$6") == 0)
4501 /* Default alignment to 16 byte boundary. */
4504 if (*input_line_pointer
== ',')
4506 ++input_line_pointer
;
4508 if (*input_line_pointer
!= '"')
4509 exp
= get_absolute_expression ();
4512 ++input_line_pointer
;
4513 while (*input_line_pointer
!= '"'
4514 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4516 switch (*input_line_pointer
)
4518 /* Section Contents */
4519 case 'a': /* unknown */
4520 as_bad (_("Unsupported section attribute -- 'a'"));
4522 case 'c': /* code section */
4525 case 'd': /* section has initialized data */
4528 case 'u': /* section has uninitialized data */
4529 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4533 case 'i': /* section contains directives (info) */
4534 /* FIXME: This is IMAGE_SCN_LNK_INFO
4536 flags
|= SEC_HAS_CONTENTS
;
4538 case 'n': /* section can be discarded */
4541 case 'R': /* Remove section at link time */
4542 flags
|= SEC_NEVER_LOAD
;
4545 /* Section Protection */
4546 case 'r': /* section is readable */
4547 flags
|= IMAGE_SCN_MEM_READ
;
4549 case 'w': /* section is writeable */
4550 flags
|= IMAGE_SCN_MEM_WRITE
;
4552 case 'x': /* section is executable */
4553 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4555 case 's': /* section is sharable */
4556 flags
|= IMAGE_SCN_MEM_SHARED
;
4559 /* Section Alignment */
4560 case '0': /* align to byte boundary */
4561 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4564 case '1': /* align to halfword boundary */
4565 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4568 case '2': /* align to word boundary */
4569 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4572 case '3': /* align to doubleword boundary */
4573 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4576 case '4': /* align to quadword boundary */
4577 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4580 case '5': /* align to 32 byte boundary */
4581 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4584 case '6': /* align to 64 byte boundary */
4585 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4590 as_bad (_("unknown section attribute '%c'"),
4591 *input_line_pointer
);
4594 ++input_line_pointer
;
4596 if (*input_line_pointer
== '"')
4597 ++input_line_pointer
;
4601 sec
= subseg_new (name
, (subsegT
) exp
);
4603 ppc_set_current_section (sec
);
4605 if (flags
!= SEC_NO_FLAGS
)
4607 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4608 as_bad (_("error setting flags for \"%s\": %s"),
4609 bfd_section_name (stdoutput
, sec
),
4610 bfd_errmsg (bfd_get_error ()));
4613 bfd_set_section_alignment (stdoutput
, sec
, align
);
4618 ppc_pe_function (ignore
)
4619 int ignore ATTRIBUTE_UNUSED
;
4625 name
= input_line_pointer
;
4626 endc
= get_symbol_end ();
4628 ext_sym
= symbol_find_or_make (name
);
4630 *input_line_pointer
= endc
;
4632 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4633 SF_SET_FUNCTION (ext_sym
);
4634 SF_SET_PROCESS (ext_sym
);
4635 coff_add_linesym (ext_sym
);
4637 demand_empty_rest_of_line ();
4641 ppc_pe_tocd (ignore
)
4642 int ignore ATTRIBUTE_UNUSED
;
4644 if (tocdata_section
== 0)
4646 tocdata_section
= subseg_new (".tocd", 0);
4647 /* FIXME: section flags won't work. */
4648 bfd_set_section_flags (stdoutput
, tocdata_section
,
4649 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4650 | SEC_READONLY
| SEC_DATA
));
4652 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4656 rdata_section
= subseg_new (".tocd", 0);
4659 ppc_set_current_section (tocdata_section
);
4661 demand_empty_rest_of_line ();
4664 /* Don't adjust TOC relocs to use the section symbol. */
4667 ppc_pe_fix_adjustable (fix
)
4670 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4677 /* XCOFF specific symbol and file handling. */
4679 /* Canonicalize the symbol name. We use the to force the suffix, if
4680 any, to use square brackets, and to be in upper case. */
4683 ppc_canonicalize_symbol_name (name
)
4688 if (ppc_stab_symbol
)
4691 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4705 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4708 if (*s
== '\0' || s
[1] != '\0')
4709 as_bad (_("bad symbol suffix"));
4717 /* Set the class of a symbol based on the suffix, if any. This is
4718 called whenever a new symbol is created. */
4721 ppc_symbol_new_hook (sym
)
4724 struct ppc_tc_sy
*tc
;
4727 tc
= symbol_get_tc (sym
);
4731 tc
->real_name
= NULL
;
4737 if (ppc_stab_symbol
)
4740 s
= strchr (S_GET_NAME (sym
), '[');
4741 if (s
== (const char *) NULL
)
4743 /* There is no suffix. */
4752 if (strcmp (s
, "BS]") == 0)
4756 if (strcmp (s
, "DB]") == 0)
4758 else if (strcmp (s
, "DS]") == 0)
4762 if (strcmp (s
, "GL]") == 0)
4766 if (strcmp (s
, "PR]") == 0)
4770 if (strcmp (s
, "RO]") == 0)
4772 else if (strcmp (s
, "RW]") == 0)
4776 if (strcmp (s
, "SV]") == 0)
4780 if (strcmp (s
, "TC]") == 0)
4782 else if (strcmp (s
, "TI]") == 0)
4784 else if (strcmp (s
, "TB]") == 0)
4786 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4787 tc
->class = XMC_TC0
;
4790 if (strcmp (s
, "UA]") == 0)
4792 else if (strcmp (s
, "UC]") == 0)
4796 if (strcmp (s
, "XO]") == 0)
4801 if (tc
->class == -1)
4802 as_bad (_("Unrecognized symbol suffix"));
4805 /* Set the class of a label based on where it is defined. This
4806 handles symbols without suffixes. Also, move the symbol so that it
4807 follows the csect symbol. */
4810 ppc_frob_label (sym
)
4813 if (ppc_current_csect
!= (symbolS
*) NULL
)
4815 if (symbol_get_tc (sym
)->class == -1)
4816 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4818 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4819 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4820 &symbol_rootP
, &symbol_lastP
);
4821 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4825 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4826 seen. It tells ppc_adjust_symtab whether it needs to look through
4829 static bfd_boolean ppc_saw_abs
;
4831 /* Change the name of a symbol just before writing it out. Set the
4832 real name if the .rename pseudo-op was used. Otherwise, remove any
4833 class suffix. Return 1 if the symbol should not be included in the
4837 ppc_frob_symbol (sym
)
4840 static symbolS
*ppc_last_function
;
4841 static symbolS
*set_end
;
4843 /* Discard symbols that should not be included in the output symbol
4845 if (! symbol_used_in_reloc_p (sym
)
4846 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4847 || (! S_IS_EXTERNAL (sym
)
4848 && ! symbol_get_tc (sym
)->output
4849 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4852 /* This one will disappear anyway. Don't make a csect sym for it. */
4853 if (sym
== abs_section_sym
)
4856 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4857 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4863 name
= S_GET_NAME (sym
);
4864 s
= strchr (name
, '[');
4865 if (s
!= (char *) NULL
)
4871 snew
= xmalloc (len
+ 1);
4872 memcpy (snew
, name
, len
);
4875 S_SET_NAME (sym
, snew
);
4879 if (set_end
!= (symbolS
*) NULL
)
4881 SA_SET_SYM_ENDNDX (set_end
, sym
);
4885 if (SF_GET_FUNCTION (sym
))
4887 if (ppc_last_function
!= (symbolS
*) NULL
)
4888 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4889 ppc_last_function
= sym
;
4890 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4892 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4893 SA_SET_SYM_FSIZE (sym
,
4894 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4897 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4898 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4900 if (ppc_last_function
== (symbolS
*) NULL
)
4901 as_bad (_(".ef with no preceding .function"));
4904 set_end
= ppc_last_function
;
4905 ppc_last_function
= NULL
;
4907 /* We don't have a C_EFCN symbol, but we need to force the
4908 COFF backend to believe that it has seen one. */
4909 coff_last_function
= NULL
;
4913 if (! S_IS_EXTERNAL (sym
)
4914 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4915 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4916 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4917 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4918 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4919 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4920 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4921 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4922 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4923 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4925 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4926 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4929 union internal_auxent
*a
;
4931 /* Create a csect aux. */
4932 i
= S_GET_NUMBER_AUXILIARY (sym
);
4933 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4934 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4935 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4937 /* This is the TOC table. */
4938 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4939 a
->x_csect
.x_scnlen
.l
= 0;
4940 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4942 else if (symbol_get_tc (sym
)->subseg
!= 0)
4944 /* This is a csect symbol. x_scnlen is the size of the
4946 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4947 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4948 S_GET_SEGMENT (sym
))
4949 - S_GET_VALUE (sym
));
4952 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4953 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4954 - S_GET_VALUE (sym
));
4956 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4958 else if (S_GET_SEGMENT (sym
) == bss_section
)
4960 /* This is a common symbol. */
4961 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4962 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4963 if (S_IS_EXTERNAL (sym
))
4964 symbol_get_tc (sym
)->class = XMC_RW
;
4966 symbol_get_tc (sym
)->class = XMC_BS
;
4968 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4970 /* This is an absolute symbol. The csect will be created by
4971 ppc_adjust_symtab. */
4973 a
->x_csect
.x_smtyp
= XTY_LD
;
4974 if (symbol_get_tc (sym
)->class == -1)
4975 symbol_get_tc (sym
)->class = XMC_XO
;
4977 else if (! S_IS_DEFINED (sym
))
4979 /* This is an external symbol. */
4980 a
->x_csect
.x_scnlen
.l
= 0;
4981 a
->x_csect
.x_smtyp
= XTY_ER
;
4983 else if (symbol_get_tc (sym
)->class == XMC_TC
)
4987 /* This is a TOC definition. x_scnlen is the size of the
4989 next
= symbol_next (sym
);
4990 while (symbol_get_tc (next
)->class == XMC_TC0
)
4991 next
= symbol_next (next
);
4992 if (next
== (symbolS
*) NULL
4993 || symbol_get_tc (next
)->class != XMC_TC
)
4995 if (ppc_after_toc_frag
== (fragS
*) NULL
)
4996 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4998 - S_GET_VALUE (sym
));
5000 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5001 - S_GET_VALUE (sym
));
5005 resolve_symbol_value (next
);
5006 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5007 - S_GET_VALUE (sym
));
5009 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5015 /* This is a normal symbol definition. x_scnlen is the
5016 symbol index of the containing csect. */
5017 if (S_GET_SEGMENT (sym
) == text_section
)
5018 csect
= ppc_text_csects
;
5019 else if (S_GET_SEGMENT (sym
) == data_section
)
5020 csect
= ppc_data_csects
;
5024 /* Skip the initial dummy symbol. */
5025 csect
= symbol_get_tc (csect
)->next
;
5027 if (csect
== (symbolS
*) NULL
)
5029 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5030 a
->x_csect
.x_scnlen
.l
= 0;
5034 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5036 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5037 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5038 > S_GET_VALUE (sym
))
5040 csect
= symbol_get_tc (csect
)->next
;
5043 a
->x_csect
.x_scnlen
.p
=
5044 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5045 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5048 a
->x_csect
.x_smtyp
= XTY_LD
;
5051 a
->x_csect
.x_parmhash
= 0;
5052 a
->x_csect
.x_snhash
= 0;
5053 if (symbol_get_tc (sym
)->class == -1)
5054 a
->x_csect
.x_smclas
= XMC_PR
;
5056 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5057 a
->x_csect
.x_stab
= 0;
5058 a
->x_csect
.x_snstab
= 0;
5060 /* Don't let the COFF backend resort these symbols. */
5061 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5063 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5065 /* We want the value to be the symbol index of the referenced
5066 csect symbol. BFD will do that for us if we set the right
5068 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5069 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5071 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5072 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5074 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5079 /* The value is the offset from the enclosing csect. */
5080 block
= symbol_get_tc (sym
)->within
;
5081 csect
= symbol_get_tc (block
)->within
;
5082 resolve_symbol_value (csect
);
5083 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5085 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5086 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5088 /* We want the value to be a file offset into the line numbers.
5089 BFD will do that for us if we set the right flags. We have
5090 already set the value correctly. */
5091 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5097 /* Adjust the symbol table. This creates csect symbols for all
5098 absolute symbols. */
5101 ppc_adjust_symtab ()
5108 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5112 union internal_auxent
*a
;
5114 if (S_GET_SEGMENT (sym
) != absolute_section
)
5117 csect
= symbol_create (".abs[XO]", absolute_section
,
5118 S_GET_VALUE (sym
), &zero_address_frag
);
5119 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5120 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5121 i
= S_GET_NUMBER_AUXILIARY (csect
);
5122 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5123 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5124 a
->x_csect
.x_scnlen
.l
= 0;
5125 a
->x_csect
.x_smtyp
= XTY_SD
;
5126 a
->x_csect
.x_parmhash
= 0;
5127 a
->x_csect
.x_snhash
= 0;
5128 a
->x_csect
.x_smclas
= XMC_XO
;
5129 a
->x_csect
.x_stab
= 0;
5130 a
->x_csect
.x_snstab
= 0;
5132 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5134 i
= S_GET_NUMBER_AUXILIARY (sym
);
5135 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5136 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5137 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5140 ppc_saw_abs
= FALSE
;
5143 /* Set the VMA for a section. This is called on all the sections in
5147 ppc_frob_section (sec
)
5150 static bfd_vma vma
= 0;
5152 vma
= md_section_align (sec
, vma
);
5153 bfd_set_section_vma (stdoutput
, sec
, vma
);
5154 vma
+= bfd_section_size (stdoutput
, sec
);
5157 #endif /* OBJ_XCOFF */
5159 /* Turn a string in input_line_pointer into a floating point constant
5160 of type TYPE, and store the appropriate bytes in *LITP. The number
5161 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5162 returned, or NULL on OK. */
5165 md_atof (type
, litp
, sizep
)
5171 LITTLENUM_TYPE words
[4];
5187 return _("bad call to md_atof");
5190 t
= atof_ieee (input_line_pointer
, type
, words
);
5192 input_line_pointer
= t
;
5196 if (target_big_endian
)
5198 for (i
= 0; i
< prec
; i
++)
5200 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5206 for (i
= prec
- 1; i
>= 0; i
--)
5208 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5216 /* Write a value out to the object file, using the appropriate
5220 md_number_to_chars (buf
, val
, n
)
5225 if (target_big_endian
)
5226 number_to_chars_bigendian (buf
, val
, n
);
5228 number_to_chars_littleendian (buf
, val
, n
);
5231 /* Align a section (I don't know why this is machine dependent). */
5234 md_section_align (seg
, addr
)
5238 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5240 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5243 /* We don't have any form of relaxing. */
5246 md_estimate_size_before_relax (fragp
, seg
)
5247 fragS
*fragp ATTRIBUTE_UNUSED
;
5248 asection
*seg ATTRIBUTE_UNUSED
;
5254 /* Convert a machine dependent frag. We never generate these. */
5257 md_convert_frag (abfd
, sec
, fragp
)
5258 bfd
*abfd ATTRIBUTE_UNUSED
;
5259 asection
*sec ATTRIBUTE_UNUSED
;
5260 fragS
*fragp ATTRIBUTE_UNUSED
;
5265 /* We have no need to default values of symbols. */
5268 md_undefined_symbol (name
)
5269 char *name ATTRIBUTE_UNUSED
;
5274 /* Functions concerning relocs. */
5276 /* The location from which a PC relative jump should be calculated,
5277 given a PC relative reloc. */
5280 md_pcrel_from_section (fixp
, sec
)
5282 segT sec ATTRIBUTE_UNUSED
;
5284 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5289 /* This is called to see whether a fixup should be adjusted to use a
5290 section symbol. We take the opportunity to change a fixup against
5291 a symbol in the TOC subsegment into a reloc against the
5292 corresponding .tc symbol. */
5295 ppc_fix_adjustable (fix
)
5298 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5299 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5300 TC_SYMFIELD_TYPE
*tc
;
5302 if (symseg
== absolute_section
)
5305 if (ppc_toc_csect
!= (symbolS
*) NULL
5306 && fix
->fx_addsy
!= ppc_toc_csect
5307 && symseg
== data_section
5308 && val
>= ppc_toc_frag
->fr_address
5309 && (ppc_after_toc_frag
== (fragS
*) NULL
5310 || val
< ppc_after_toc_frag
->fr_address
))
5314 for (sy
= symbol_next (ppc_toc_csect
);
5315 sy
!= (symbolS
*) NULL
;
5316 sy
= symbol_next (sy
))
5318 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5320 if (sy_tc
->class == XMC_TC0
)
5322 if (sy_tc
->class != XMC_TC
)
5324 if (val
== resolve_symbol_value (sy
))
5327 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5332 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5333 _("symbol in .toc does not match any .tc"));
5336 /* Possibly adjust the reloc to be against the csect. */
5337 tc
= symbol_get_tc (fix
->fx_addsy
);
5339 && tc
->class != XMC_TC0
5340 && tc
->class != XMC_TC
5341 && symseg
!= bss_section
5342 /* Don't adjust if this is a reloc in the toc section. */
5343 && (symseg
!= data_section
5344 || ppc_toc_csect
== NULL
5345 || val
< ppc_toc_frag
->fr_address
5346 || (ppc_after_toc_frag
!= NULL
5347 && val
>= ppc_after_toc_frag
->fr_address
)))
5350 symbolS
*next_csect
;
5352 if (symseg
== text_section
)
5353 csect
= ppc_text_csects
;
5354 else if (symseg
== data_section
)
5355 csect
= ppc_data_csects
;
5359 /* Skip the initial dummy symbol. */
5360 csect
= symbol_get_tc (csect
)->next
;
5362 if (csect
!= (symbolS
*) NULL
)
5364 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5365 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5367 /* If the csect address equals the symbol value, then we
5368 have to look through the full symbol table to see
5369 whether this is the csect we want. Note that we will
5370 only get here if the csect has zero length. */
5371 if (symbol_get_frag (csect
)->fr_address
== val
5372 && S_GET_VALUE (csect
) == val
)
5376 for (scan
= symbol_next (csect
);
5378 scan
= symbol_next (scan
))
5380 if (symbol_get_tc (scan
)->subseg
!= 0)
5382 if (scan
== fix
->fx_addsy
)
5386 /* If we found the symbol before the next csect
5387 symbol, then this is the csect we want. */
5388 if (scan
== fix
->fx_addsy
)
5395 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5396 fix
->fx_addsy
= csect
;
5401 /* Adjust a reloc against a .lcomm symbol to be against the base
5403 if (symseg
== bss_section
5404 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5406 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5408 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5415 /* A reloc from one csect to another must be kept. The assembler
5416 will, of course, keep relocs between sections, and it will keep
5417 absolute relocs, but we need to force it to keep PC relative relocs
5418 between two csects in the same section. */
5421 ppc_force_relocation (fix
)
5424 /* At this point fix->fx_addsy should already have been converted to
5425 a csect symbol. If the csect does not include the fragment, then
5426 we need to force the relocation. */
5428 && fix
->fx_addsy
!= NULL
5429 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5430 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5431 > fix
->fx_frag
->fr_address
)
5432 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5433 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5434 <= fix
->fx_frag
->fr_address
))))
5437 return generic_force_reloc (fix
);
5440 #endif /* OBJ_XCOFF */
5443 /* If this function returns non-zero, it guarantees that a relocation
5444 will be emitted for a fixup. */
5447 ppc_force_relocation (fix
)
5450 /* Branch prediction relocations must force a relocation, as must
5451 the vtable description relocs. */
5452 switch (fix
->fx_r_type
)
5454 case BFD_RELOC_PPC_B16_BRTAKEN
:
5455 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5456 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5457 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5458 case BFD_RELOC_PPC64_TOC
:
5464 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5465 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5468 return generic_force_reloc (fix
);
5472 ppc_fix_adjustable (fix
)
5475 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5476 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5477 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5478 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5479 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5480 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5481 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5482 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5483 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5485 || (fix
->fx_subsy
!= NULL
5486 && (S_GET_SEGMENT (fix
->fx_subsy
)
5487 == S_GET_SEGMENT (fix
->fx_addsy
)))
5488 || S_IS_LOCAL (fix
->fx_addsy
)));
5492 /* Apply a fixup to the object code. This is called for all the
5493 fixups we generated by the call to fix_new_exp, above. In the call
5494 above we used a reloc code which was the largest legal reloc code
5495 plus the operand index. Here we undo that to recover the operand
5496 index. At this point all symbol values should be fully resolved,
5497 and we attempt to completely resolve the reloc. If we can not do
5498 that, we determine the correct reloc code and put it back in the
5502 md_apply_fix3 (fixP
, valP
, seg
)
5505 segT seg ATTRIBUTE_UNUSED
;
5507 valueT value
= * valP
;
5510 if (fixP
->fx_addsy
!= NULL
)
5512 /* Hack around bfd_install_relocation brain damage. */
5514 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5519 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5520 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5521 doing this relocation the code in write.c is going to call
5522 bfd_install_relocation, which is also going to use the symbol
5523 value. That means that if the reloc is fully resolved we want to
5524 use *valP since bfd_install_relocation is not being used.
5525 However, if the reloc is not fully resolved we do not want to use
5526 *valP, and must use fx_offset instead. However, if the reloc
5527 is PC relative, we do want to use *valP since it includes the
5528 result of md_pcrel_from. This is confusing. */
5529 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5532 else if (fixP
->fx_pcrel
)
5536 value
= fixP
->fx_offset
;
5539 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5541 /* We can't actually support subtracting a symbol. */
5542 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5545 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5548 const struct powerpc_operand
*operand
;
5552 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5554 operand
= &powerpc_operands
[opindex
];
5557 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5558 does not generate a reloc. It uses the offset of `sym' within its
5559 csect. Other usages, such as `.long sym', generate relocs. This
5560 is the documented behaviour of non-TOC symbols. */
5561 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5562 && operand
->bits
== 16
5563 && operand
->shift
== 0
5564 && (operand
->insert
== NULL
|| ppc_obj64
)
5565 && fixP
->fx_addsy
!= NULL
5566 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5567 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5568 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5569 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5571 value
= fixP
->fx_offset
;
5576 /* Fetch the instruction, insert the fully resolved operand
5577 value, and stuff the instruction back again. */
5578 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5579 if (target_big_endian
)
5580 insn
= bfd_getb32 ((unsigned char *) where
);
5582 insn
= bfd_getl32 ((unsigned char *) where
);
5583 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5584 fixP
->fx_file
, fixP
->fx_line
);
5585 if (target_big_endian
)
5586 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5588 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5591 /* Nothing else to do here. */
5594 assert (fixP
->fx_addsy
!= NULL
);
5596 /* Determine a BFD reloc value based on the operand information.
5597 We are only prepared to turn a few of the operands into
5599 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5600 && operand
->bits
== 26
5601 && operand
->shift
== 0)
5602 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5603 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5604 && operand
->bits
== 16
5605 && operand
->shift
== 0)
5607 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5610 if (target_big_endian
)
5611 fixP
->fx_where
+= 2;
5614 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5615 && operand
->bits
== 26
5616 && operand
->shift
== 0)
5617 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5618 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5619 && operand
->bits
== 16
5620 && operand
->shift
== 0)
5622 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5625 if (target_big_endian
)
5626 fixP
->fx_where
+= 2;
5629 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5630 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5631 && operand
->bits
== 16
5632 && operand
->shift
== 0)
5634 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5636 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5639 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5640 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5645 fixP
->fx_r_type
= BFD_RELOC_16
;
5648 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5649 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5653 if (target_big_endian
)
5654 fixP
->fx_where
+= 2;
5656 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5662 /* Use expr_symbol_where to see if this is an expression
5664 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5665 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5666 _("unresolved expression that must be resolved"));
5668 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5669 _("unsupported relocation against %s"),
5670 S_GET_NAME (fixP
->fx_addsy
));
5678 ppc_elf_validate_fix (fixP
, seg
);
5680 switch (fixP
->fx_r_type
)
5682 case BFD_RELOC_CTOR
:
5689 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5693 case BFD_RELOC_32_PCREL
:
5694 case BFD_RELOC_PPC_EMB_NADDR32
:
5695 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5702 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5705 case BFD_RELOC_64_PCREL
:
5706 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5710 case BFD_RELOC_LO16
:
5712 case BFD_RELOC_GPREL16
:
5713 case BFD_RELOC_16_GOT_PCREL
:
5714 case BFD_RELOC_16_GOTOFF
:
5715 case BFD_RELOC_LO16_GOTOFF
:
5716 case BFD_RELOC_HI16_GOTOFF
:
5717 case BFD_RELOC_HI16_S_GOTOFF
:
5718 case BFD_RELOC_16_BASEREL
:
5719 case BFD_RELOC_LO16_BASEREL
:
5720 case BFD_RELOC_HI16_BASEREL
:
5721 case BFD_RELOC_HI16_S_BASEREL
:
5722 case BFD_RELOC_PPC_EMB_NADDR16
:
5723 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5724 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5725 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5726 case BFD_RELOC_PPC_EMB_SDAI16
:
5727 case BFD_RELOC_PPC_EMB_SDA2REL
:
5728 case BFD_RELOC_PPC_EMB_SDA2I16
:
5729 case BFD_RELOC_PPC_EMB_RELSEC16
:
5730 case BFD_RELOC_PPC_EMB_RELST_LO
:
5731 case BFD_RELOC_PPC_EMB_RELST_HI
:
5732 case BFD_RELOC_PPC_EMB_RELST_HA
:
5733 case BFD_RELOC_PPC_EMB_RELSDA
:
5734 case BFD_RELOC_PPC_TOC16
:
5736 case BFD_RELOC_PPC64_TOC16_LO
:
5737 case BFD_RELOC_PPC64_TOC16_HI
:
5738 case BFD_RELOC_PPC64_TOC16_HA
:
5742 if (fixP
->fx_addsy
!= NULL
)
5743 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5744 _("cannot emit PC relative %s relocation against %s"),
5745 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5746 S_GET_NAME (fixP
->fx_addsy
));
5748 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5749 _("cannot emit PC relative %s relocation"),
5750 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5753 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5757 /* This case happens when you write, for example,
5759 where L1 and L2 are defined later. */
5760 case BFD_RELOC_HI16
:
5763 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5767 case BFD_RELOC_HI16_S
:
5770 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5775 case BFD_RELOC_PPC64_HIGHER
:
5778 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5779 PPC_HIGHER (value
), 2);
5782 case BFD_RELOC_PPC64_HIGHER_S
:
5785 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5786 PPC_HIGHERA (value
), 2);
5789 case BFD_RELOC_PPC64_HIGHEST
:
5792 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5793 PPC_HIGHEST (value
), 2);
5796 case BFD_RELOC_PPC64_HIGHEST_S
:
5799 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5800 PPC_HIGHESTA (value
), 2);
5803 case BFD_RELOC_PPC64_ADDR16_DS
:
5804 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5805 case BFD_RELOC_PPC64_GOT16_DS
:
5806 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5807 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5808 case BFD_RELOC_PPC64_SECTOFF_DS
:
5809 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5810 case BFD_RELOC_PPC64_TOC16_DS
:
5811 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5812 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5813 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5817 unsigned char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5818 unsigned long val
, mask
;
5820 if (target_big_endian
)
5821 val
= bfd_getb32 (where
- 2);
5823 val
= bfd_getl32 (where
);
5825 /* lq insns reserve the four lsbs. */
5826 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5827 && (val
& (0x3f << 26)) == (56u << 26))
5829 val
|= value
& mask
;
5830 if (target_big_endian
)
5831 bfd_putb16 ((bfd_vma
) val
, where
);
5833 bfd_putl16 ((bfd_vma
) val
, where
);
5837 case BFD_RELOC_PPC_B16_BRTAKEN
:
5838 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5839 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5840 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5843 case BFD_RELOC_PPC_TLS
:
5844 case BFD_RELOC_PPC_DTPMOD
:
5845 case BFD_RELOC_PPC_TPREL16
:
5846 case BFD_RELOC_PPC_TPREL16_LO
:
5847 case BFD_RELOC_PPC_TPREL16_HI
:
5848 case BFD_RELOC_PPC_TPREL16_HA
:
5849 case BFD_RELOC_PPC_TPREL
:
5850 case BFD_RELOC_PPC_DTPREL16
:
5851 case BFD_RELOC_PPC_DTPREL16_LO
:
5852 case BFD_RELOC_PPC_DTPREL16_HI
:
5853 case BFD_RELOC_PPC_DTPREL16_HA
:
5854 case BFD_RELOC_PPC_DTPREL
:
5855 case BFD_RELOC_PPC_GOT_TLSGD16
:
5856 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5857 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5858 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5859 case BFD_RELOC_PPC_GOT_TLSLD16
:
5860 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5861 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5862 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5863 case BFD_RELOC_PPC_GOT_TPREL16
:
5864 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5865 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5866 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5867 case BFD_RELOC_PPC_GOT_DTPREL16
:
5868 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5869 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5870 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5871 case BFD_RELOC_PPC64_TPREL16_DS
:
5872 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5873 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5874 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5875 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5876 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5877 case BFD_RELOC_PPC64_DTPREL16_DS
:
5878 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5879 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5880 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5881 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5882 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5885 /* Because SDA21 modifies the register field, the size is set to 4
5886 bytes, rather than 2, so offset it here appropriately. */
5887 case BFD_RELOC_PPC_EMB_SDA21
:
5891 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5892 + ((target_big_endian
) ? 2 : 0),
5899 /* This can occur if there is a bug in the input assembler, eg:
5900 ".byte <undefined_symbol> - ." */
5902 as_bad (_("Unable to handle reference to symbol %s"),
5903 S_GET_NAME (fixP
->fx_addsy
));
5905 as_bad (_("Unable to resolve expression"));
5909 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5913 case BFD_RELOC_24_PLT_PCREL
:
5914 case BFD_RELOC_PPC_LOCAL24PC
:
5915 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5923 /* Fetch the instruction, insert the fully resolved operand
5924 value, and stuff the instruction back again. */
5925 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5926 if (target_big_endian
)
5927 insn
= bfd_getb32 ((unsigned char *) where
);
5929 insn
= bfd_getl32 ((unsigned char *) where
);
5930 if ((value
& 3) != 0)
5931 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5932 _("must branch to an address a multiple of 4"));
5933 if ((offsetT
) value
< -0x40000000
5934 || (offsetT
) value
>= 0x40000000)
5935 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5936 _("@local or @plt branch destination is too far away, %ld bytes"),
5938 insn
= insn
| (value
& 0x03fffffc);
5939 if (target_big_endian
)
5940 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5942 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5946 case BFD_RELOC_VTABLE_INHERIT
:
5949 && !S_IS_DEFINED (fixP
->fx_addsy
)
5950 && !S_IS_WEAK (fixP
->fx_addsy
))
5951 S_SET_WEAK (fixP
->fx_addsy
);
5954 case BFD_RELOC_VTABLE_ENTRY
:
5959 /* Generated by reference to `sym@tocbase'. The sym is
5960 ignored by the linker. */
5961 case BFD_RELOC_PPC64_TOC
:
5967 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
5974 fixP
->fx_addnumber
= value
;
5976 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
5977 fixP
->fx_addnumber
= 0;
5981 fixP
->fx_addnumber
= 0;
5983 /* We want to use the offset within the data segment of the
5984 symbol, not the actual VMA of the symbol. */
5985 fixP
->fx_addnumber
=
5986 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
5992 /* Generate a reloc for a fixup. */
5995 tc_gen_reloc (seg
, fixp
)
5996 asection
*seg ATTRIBUTE_UNUSED
;
6001 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6003 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6004 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6005 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6006 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6007 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6009 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6010 _("reloc %d not supported by object file format"),
6011 (int) fixp
->fx_r_type
);
6014 reloc
->addend
= fixp
->fx_addnumber
;
6020 ppc_cfi_frame_initial_instructions ()
6022 cfi_add_CFA_def_cfa (1, 0);
6026 tc_ppc_regname_to_dw2regnum (const char *regname
)
6028 unsigned int regnum
= -1;
6032 static struct { char *name
; int dw2regnum
; } regnames
[] =
6034 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6035 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6036 { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6037 { "spe_acc", 111 }, { "spefscr", 112 }
6040 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6041 if (strcmp (regnames
[i
].name
, regname
) == 0)
6042 return regnames
[i
].dw2regnum
;
6044 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6046 p
= regname
+ 1 + (regname
[1] == '.');
6047 regnum
= strtoul (p
, &q
, 10);
6048 if (p
== q
|| *q
|| regnum
>= 32)
6050 if (regname
[0] == 'f')
6052 else if (regname
[0] == 'v')
6055 else if (regname
[0] == 'c' && regname
[1] == 'r')
6057 p
= regname
+ 2 + (regname
[2] == '.');
6058 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6060 regnum
= p
[0] - '0' + 68;