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
)
1460 as_bad_value_out_of_range (_("operand"), test
, (offsetT
) min
, (offsetT
) max
, file
, line
);
1463 if (operand
->insert
)
1468 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1469 if (errmsg
!= (const char *) NULL
)
1470 as_bad_where (file
, line
, errmsg
);
1473 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1481 /* Parse @got, etc. and return the desired relocation. */
1482 static bfd_reloc_code_real_type
1483 ppc_elf_suffix (str_p
, exp_p
)
1489 unsigned int length
: 8;
1490 unsigned int valid32
: 1;
1491 unsigned int valid64
: 1;
1500 const struct map_bfd
*ptr
;
1502 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1503 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1504 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1506 static const struct map_bfd mapping
[] = {
1507 MAP ("l", BFD_RELOC_LO16
),
1508 MAP ("h", BFD_RELOC_HI16
),
1509 MAP ("ha", BFD_RELOC_HI16_S
),
1510 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1511 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1512 MAP ("got", BFD_RELOC_16_GOTOFF
),
1513 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1514 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1515 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1516 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1517 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1518 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1519 MAP ("copy", BFD_RELOC_PPC_COPY
),
1520 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1521 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1522 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1523 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1524 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1525 MAP ("tls", BFD_RELOC_PPC_TLS
),
1526 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1527 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1528 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1529 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1530 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1531 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1532 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1533 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1534 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1535 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1536 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1537 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1538 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1539 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1540 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1541 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1542 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1543 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1544 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1545 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1546 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1547 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1548 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1549 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1550 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1551 MAP32 ("fixup", BFD_RELOC_CTOR
),
1552 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1553 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1554 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1555 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1556 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1557 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1558 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1559 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1560 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1561 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1562 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1563 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1564 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1565 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1566 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1567 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1568 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1569 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1570 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1571 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1572 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1573 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1574 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1575 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1576 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1577 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1578 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1579 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1580 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1581 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1582 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1583 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1584 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1585 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1586 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1587 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1588 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1589 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1590 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1591 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1592 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1596 return BFD_RELOC_UNUSED
;
1598 for (ch
= *str
, str2
= ident
;
1599 (str2
< ident
+ sizeof (ident
) - 1
1600 && (ISALNUM (ch
) || ch
== '@'));
1603 *str2
++ = TOLOWER (ch
);
1610 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1611 if (ch
== ptr
->string
[0]
1612 && len
== ptr
->length
1613 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1614 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1616 int reloc
= ptr
->reloc
;
1619 if (exp_p
->X_add_number
!= 0
1620 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1621 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1622 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1623 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1624 as_warn (_("identifier+constant@got means identifier@got+constant"));
1626 /* Now check for identifier@suffix+constant. */
1627 if (*str
== '-' || *str
== '+')
1629 char *orig_line
= input_line_pointer
;
1630 expressionS new_exp
;
1632 input_line_pointer
= str
;
1633 expression (&new_exp
);
1634 if (new_exp
.X_op
== O_constant
)
1636 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1637 str
= input_line_pointer
;
1640 if (&input_line_pointer
!= str_p
)
1641 input_line_pointer
= orig_line
;
1645 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1646 && exp_p
->X_op
== O_symbol
1647 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1649 /* Change the symbol so that the dummy .TOC. symbol can be
1650 omitted from the object file. */
1651 exp_p
->X_add_symbol
= &abs_symbol
;
1654 return (bfd_reloc_code_real_type
) reloc
;
1657 return BFD_RELOC_UNUSED
;
1660 /* Like normal .long/.short/.word, except support @got, etc.
1661 Clobbers input_line_pointer, checks end-of-line. */
1663 ppc_elf_cons (nbytes
)
1664 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1667 bfd_reloc_code_real_type reloc
;
1669 if (is_it_end_of_statement ())
1671 demand_empty_rest_of_line ();
1678 if (exp
.X_op
== O_symbol
1679 && *input_line_pointer
== '@'
1680 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1681 &exp
)) != BFD_RELOC_UNUSED
)
1683 reloc_howto_type
*reloc_howto
;
1686 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1687 size
= bfd_get_reloc_size (reloc_howto
);
1691 as_bad (_("%s relocations do not fit in %d bytes\n"),
1692 reloc_howto
->name
, nbytes
);
1699 p
= frag_more (nbytes
);
1701 if (target_big_endian
)
1702 offset
= nbytes
- size
;
1703 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1708 emit_expr (&exp
, (unsigned int) nbytes
);
1710 while (*input_line_pointer
++ == ',');
1712 /* Put terminator back into stream. */
1713 input_line_pointer
--;
1714 demand_empty_rest_of_line ();
1717 /* Solaris pseduo op to change to the .rodata section. */
1722 char *save_line
= input_line_pointer
;
1723 static char section
[] = ".rodata\n";
1725 /* Just pretend this is .section .rodata */
1726 input_line_pointer
= section
;
1727 obj_elf_section (xxx
);
1729 input_line_pointer
= save_line
;
1732 /* Pseudo op to make file scope bss items. */
1735 int xxx ATTRIBUTE_UNUSED
;
1737 register char *name
;
1741 register symbolS
*symbolP
;
1748 name
= input_line_pointer
;
1749 c
= get_symbol_end ();
1751 /* just after name is now '\0'. */
1752 p
= input_line_pointer
;
1755 if (*input_line_pointer
!= ',')
1757 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1758 ignore_rest_of_line ();
1762 input_line_pointer
++; /* skip ',' */
1763 if ((size
= get_absolute_expression ()) < 0)
1765 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1766 ignore_rest_of_line ();
1770 /* The third argument to .lcomm is the alignment. */
1771 if (*input_line_pointer
!= ',')
1775 ++input_line_pointer
;
1776 align
= get_absolute_expression ();
1779 as_warn (_("ignoring bad alignment"));
1785 symbolP
= symbol_find_or_make (name
);
1788 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1790 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1791 S_GET_NAME (symbolP
));
1792 ignore_rest_of_line ();
1796 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1798 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1799 S_GET_NAME (symbolP
),
1800 (long) S_GET_VALUE (symbolP
),
1803 ignore_rest_of_line ();
1809 old_subsec
= now_subseg
;
1812 /* Convert to a power of 2 alignment. */
1813 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1816 as_bad (_("Common alignment not a power of 2"));
1817 ignore_rest_of_line ();
1824 record_alignment (bss_section
, align2
);
1825 subseg_set (bss_section
, 0);
1827 frag_align (align2
, 0, 0);
1828 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1829 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1830 symbol_set_frag (symbolP
, frag_now
);
1831 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1834 S_SET_SIZE (symbolP
, size
);
1835 S_SET_SEGMENT (symbolP
, bss_section
);
1836 subseg_set (old_sec
, old_subsec
);
1837 demand_empty_rest_of_line ();
1840 /* Validate any relocations emitted for -mrelocatable, possibly adding
1841 fixups for word relocations in writable segments, so we can adjust
1844 ppc_elf_validate_fix (fixp
, seg
)
1848 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1857 case SHLIB_MRELOCATABLE
:
1858 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1859 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1860 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1861 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1862 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1863 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1864 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1865 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1866 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1867 && (seg
->flags
& SEC_LOAD
) != 0
1868 && strcmp (segment_name (seg
), ".got2") != 0
1869 && strcmp (segment_name (seg
), ".dtors") != 0
1870 && strcmp (segment_name (seg
), ".ctors") != 0
1871 && strcmp (segment_name (seg
), ".fixup") != 0
1872 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1873 && strcmp (segment_name (seg
), ".eh_frame") != 0
1874 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1876 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1877 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1879 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1880 _("Relocation cannot be done when using -mrelocatable"));
1887 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1888 function descriptor sym if the corresponding code sym is used. */
1891 ppc_frob_file_before_adjust ()
1898 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1905 name
= S_GET_NAME (symp
);
1909 if (! S_IS_WEAK (symp
)
1910 || S_IS_DEFINED (symp
))
1913 len
= strlen (name
) + 1;
1914 dotname
= xmalloc (len
+ 1);
1916 memcpy (dotname
+ 1, name
, len
);
1917 dotsym
= symbol_find (dotname
);
1919 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1920 || symbol_used_in_reloc_p (dotsym
)))
1922 symbol_mark_used (symp
);
1926 /* Don't emit .TOC. symbol. */
1927 symp
= symbol_find (".TOC.");
1929 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1931 #endif /* OBJ_ELF */
1936 * Summary of parse_toc_entry.
1938 * in: Input_line_pointer points to the '[' in one of:
1940 * [toc] [tocv] [toc32] [toc64]
1942 * Anything else is an error of one kind or another.
1945 * return value: success or failure
1946 * toc_kind: kind of toc reference
1947 * input_line_pointer:
1948 * success: first char after the ']'
1949 * failure: unchanged
1953 * [toc] - rv == success, toc_kind = default_toc
1954 * [tocv] - rv == success, toc_kind = data_in_toc
1955 * [toc32] - rv == success, toc_kind = must_be_32
1956 * [toc64] - rv == success, toc_kind = must_be_64
1960 enum toc_size_qualifier
1962 default_toc
, /* The toc cell constructed should be the system default size */
1963 data_in_toc
, /* This is a direct reference to a toc cell */
1964 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1965 must_be_64
/* The toc cell constructed must be 64 bits wide */
1969 parse_toc_entry (toc_kind
)
1970 enum toc_size_qualifier
*toc_kind
;
1975 enum toc_size_qualifier t
;
1977 /* Save the input_line_pointer. */
1978 start
= input_line_pointer
;
1980 /* Skip over the '[' , and whitespace. */
1981 ++input_line_pointer
;
1984 /* Find the spelling of the operand. */
1985 toc_spec
= input_line_pointer
;
1986 c
= get_symbol_end ();
1988 if (strcmp (toc_spec
, "toc") == 0)
1992 else if (strcmp (toc_spec
, "tocv") == 0)
1996 else if (strcmp (toc_spec
, "toc32") == 0)
2000 else if (strcmp (toc_spec
, "toc64") == 0)
2006 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2007 *input_line_pointer
= c
;
2008 input_line_pointer
= start
;
2012 /* Now find the ']'. */
2013 *input_line_pointer
= c
;
2015 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2016 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2020 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2021 input_line_pointer
= start
;
2032 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2034 ppc_apuinfo_section_add (apu
, version
)
2035 unsigned int apu
, version
;
2039 /* Check we don't already exist. */
2040 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2041 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2044 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2046 if (ppc_apuinfo_num_alloc
== 0)
2048 ppc_apuinfo_num_alloc
= 4;
2049 ppc_apuinfo_list
= (unsigned long *)
2050 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2054 ppc_apuinfo_num_alloc
+= 4;
2055 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2056 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2059 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2065 /* We need to keep a list of fixups. We can't simply generate them as
2066 we go, because that would require us to first create the frag, and
2067 that would screw up references to ``.''. */
2073 bfd_reloc_code_real_type reloc
;
2076 #define MAX_INSN_FIXUPS (5)
2078 /* This routine is called for each instruction to be assembled. */
2085 const struct powerpc_opcode
*opcode
;
2087 const unsigned char *opindex_ptr
;
2091 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2097 bfd_reloc_code_real_type reloc
;
2100 /* Get the opcode. */
2101 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2106 /* Look up the opcode in the hash table. */
2107 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2108 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2110 const struct powerpc_macro
*macro
;
2112 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2113 if (macro
== (const struct powerpc_macro
*) NULL
)
2114 as_bad (_("Unrecognized opcode: `%s'"), str
);
2116 ppc_macro (s
, macro
);
2121 insn
= opcode
->opcode
;
2124 while (ISSPACE (*str
))
2127 /* PowerPC operands are just expressions. The only real issue is
2128 that a few operand types are optional. All cases which might use
2129 an optional operand separate the operands only with commas (in some
2130 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2131 have optional operands). Most instructions with optional operands
2132 have only one. Those that have more than one optional operand can
2133 take either all their operands or none. So, before we start seriously
2134 parsing the operands, we check to see if we have optional operands,
2135 and if we do, we count the number of commas to see which operands
2136 have been omitted. */
2138 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2140 const struct powerpc_operand
*operand
;
2142 operand
= &powerpc_operands
[*opindex_ptr
];
2143 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2145 unsigned int opcount
;
2146 unsigned int num_operands_expected
;
2149 /* There is an optional operand. Count the number of
2150 commas in the input line. */
2157 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2164 /* Compute the number of expected operands.
2165 Do not count fake operands. */
2166 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2167 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2168 ++ num_operands_expected
;
2170 /* If there are fewer operands in the line then are called
2171 for by the instruction, we want to skip the optional
2173 if (opcount
< num_operands_expected
)
2180 /* Gather the operands. */
2184 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2186 const struct powerpc_operand
*operand
;
2192 if (next_opindex
== 0)
2193 operand
= &powerpc_operands
[*opindex_ptr
];
2196 operand
= &powerpc_operands
[next_opindex
];
2201 /* If this is a fake operand, then we do not expect anything
2203 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2205 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2206 if (errmsg
!= (const char *) NULL
)
2211 /* If this is an optional operand, and we are skipping it, just
2213 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2216 if (operand
->insert
)
2218 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2219 if (errmsg
!= (const char *) NULL
)
2222 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2223 next_opindex
= *opindex_ptr
+ 1;
2227 /* Gather the operand. */
2228 hold
= input_line_pointer
;
2229 input_line_pointer
= str
;
2232 if (*input_line_pointer
== '[')
2234 /* We are expecting something like the second argument here:
2236 * lwz r4,[toc].GS.0.static_int(rtoc)
2237 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2238 * The argument following the `]' must be a symbol name, and the
2239 * register must be the toc register: 'rtoc' or '2'
2241 * The effect is to 0 as the displacement field
2242 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2243 * the appropriate variation) reloc against it based on the symbol.
2244 * The linker will build the toc, and insert the resolved toc offset.
2247 * o The size of the toc entry is currently assumed to be
2248 * 32 bits. This should not be assumed to be a hard coded
2250 * o In an effort to cope with a change from 32 to 64 bits,
2251 * there are also toc entries that are specified to be
2252 * either 32 or 64 bits:
2253 * lwz r4,[toc32].GS.0.static_int(rtoc)
2254 * lwz r4,[toc64].GS.0.static_int(rtoc)
2255 * These demand toc entries of the specified size, and the
2256 * instruction probably requires it.
2260 enum toc_size_qualifier toc_kind
;
2261 bfd_reloc_code_real_type toc_reloc
;
2263 /* Go parse off the [tocXX] part. */
2264 valid_toc
= parse_toc_entry (&toc_kind
);
2268 /* Note: message has already been issued.
2269 FIXME: what sort of recovery should we do?
2270 demand_rest_of_line (); return; ? */
2273 /* Now get the symbol following the ']'. */
2279 /* In this case, we may not have seen the symbol yet,
2280 since it is allowed to appear on a .extern or .globl
2281 or just be a label in the .data section. */
2282 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2285 /* 1. The symbol must be defined and either in the toc
2286 section, or a global.
2287 2. The reloc generated must have the TOCDEFN flag set
2288 in upper bit mess of the reloc type.
2289 FIXME: It's a little confusing what the tocv
2290 qualifier can be used for. At the very least, I've
2291 seen three uses, only one of which I'm sure I can
2293 if (ex
.X_op
== O_symbol
)
2295 assert (ex
.X_add_symbol
!= NULL
);
2296 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2299 as_bad (_("[tocv] symbol is not a toc symbol"));
2303 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2306 /* FIXME: these next two specifically specify 32/64 bit
2307 toc entries. We don't support them today. Is this
2308 the right way to say that? */
2309 toc_reloc
= BFD_RELOC_UNUSED
;
2310 as_bad (_("Unimplemented toc32 expression modifier"));
2313 /* FIXME: see above. */
2314 toc_reloc
= BFD_RELOC_UNUSED
;
2315 as_bad (_("Unimplemented toc64 expression modifier"));
2319 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2325 /* We need to generate a fixup for this expression. */
2326 if (fc
>= MAX_INSN_FIXUPS
)
2327 as_fatal (_("too many fixups"));
2329 fixups
[fc
].reloc
= toc_reloc
;
2330 fixups
[fc
].exp
= ex
;
2331 fixups
[fc
].opindex
= *opindex_ptr
;
2334 /* Ok. We've set up the fixup for the instruction. Now make it
2335 look like the constant 0 was found here. */
2337 ex
.X_op
= O_constant
;
2338 ex
.X_add_number
= 0;
2339 ex
.X_add_symbol
= NULL
;
2340 ex
.X_op_symbol
= NULL
;
2346 if (! register_name (&ex
))
2348 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2355 str
= input_line_pointer
;
2356 input_line_pointer
= hold
;
2358 if (ex
.X_op
== O_illegal
)
2359 as_bad (_("illegal operand"));
2360 else if (ex
.X_op
== O_absent
)
2361 as_bad (_("missing operand"));
2362 else if (ex
.X_op
== O_register
)
2364 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2367 else if (ex
.X_op
== O_constant
)
2370 /* Allow @HA, @L, @H on constants. */
2371 char *orig_str
= str
;
2373 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2380 case BFD_RELOC_LO16
:
2381 /* X_unsigned is the default, so if the user has done
2382 something which cleared it, we always produce a
2384 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2385 ex
.X_add_number
&= 0xffff;
2387 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2390 case BFD_RELOC_HI16
:
2391 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2392 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2394 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2397 case BFD_RELOC_HI16_S
:
2398 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2399 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2401 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2404 case BFD_RELOC_PPC64_HIGHER
:
2405 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2406 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2408 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2411 case BFD_RELOC_PPC64_HIGHER_S
:
2412 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2413 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2415 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2418 case BFD_RELOC_PPC64_HIGHEST
:
2419 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2420 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2422 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2425 case BFD_RELOC_PPC64_HIGHEST_S
:
2426 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2427 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2429 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2432 #endif /* OBJ_ELF */
2433 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2437 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2439 /* Some TLS tweaks. */
2444 case BFD_RELOC_PPC_TLS
:
2445 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2448 /* We'll only use the 32 (or 64) bit form of these relocations
2449 in constants. Instructions get the 16 bit form. */
2450 case BFD_RELOC_PPC_DTPREL
:
2451 reloc
= BFD_RELOC_PPC_DTPREL16
;
2453 case BFD_RELOC_PPC_TPREL
:
2454 reloc
= BFD_RELOC_PPC_TPREL16
;
2458 /* For the absolute forms of branches, convert the PC
2459 relative form back into the absolute. */
2460 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2464 case BFD_RELOC_PPC_B26
:
2465 reloc
= BFD_RELOC_PPC_BA26
;
2467 case BFD_RELOC_PPC_B16
:
2468 reloc
= BFD_RELOC_PPC_BA16
;
2470 case BFD_RELOC_PPC_B16_BRTAKEN
:
2471 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2473 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2474 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2482 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2487 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2489 case BFD_RELOC_LO16
:
2490 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2492 case BFD_RELOC_16_GOTOFF
:
2493 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2495 case BFD_RELOC_LO16_GOTOFF
:
2496 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2498 case BFD_RELOC_LO16_PLTOFF
:
2499 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2501 case BFD_RELOC_16_BASEREL
:
2502 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2504 case BFD_RELOC_LO16_BASEREL
:
2505 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2507 case BFD_RELOC_PPC_TOC16
:
2508 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2510 case BFD_RELOC_PPC64_TOC16_LO
:
2511 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2513 case BFD_RELOC_PPC64_PLTGOT16
:
2514 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2516 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2517 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2519 case BFD_RELOC_PPC_DTPREL16
:
2520 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2522 case BFD_RELOC_PPC_DTPREL16_LO
:
2523 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2525 case BFD_RELOC_PPC_TPREL16
:
2526 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2528 case BFD_RELOC_PPC_TPREL16_LO
:
2529 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2531 case BFD_RELOC_PPC_GOT_DTPREL16
:
2532 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2533 case BFD_RELOC_PPC_GOT_TPREL16
:
2534 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2537 as_bad (_("unsupported relocation for DS offset field"));
2542 /* We need to generate a fixup for this expression. */
2543 if (fc
>= MAX_INSN_FIXUPS
)
2544 as_fatal (_("too many fixups"));
2545 fixups
[fc
].exp
= ex
;
2546 fixups
[fc
].opindex
= 0;
2547 fixups
[fc
].reloc
= reloc
;
2550 #endif /* OBJ_ELF */
2554 /* We need to generate a fixup for this expression. */
2555 if (fc
>= MAX_INSN_FIXUPS
)
2556 as_fatal (_("too many fixups"));
2557 fixups
[fc
].exp
= ex
;
2558 fixups
[fc
].opindex
= *opindex_ptr
;
2559 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2568 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2576 /* The call to expression should have advanced str past any
2579 && (endc
!= ',' || *str
!= '\0'))
2581 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2589 while (ISSPACE (*str
))
2593 as_bad (_("junk at end of line: `%s'"), str
);
2596 /* Do we need/want a APUinfo section? */
2597 if (ppc_cpu
& (PPC_OPCODE_SPE
2598 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2599 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2600 | PPC_OPCODE_RFMCI
))
2602 /* These are all version "1". */
2603 if (opcode
->flags
& PPC_OPCODE_SPE
)
2604 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2605 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2606 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2607 if (opcode
->flags
& PPC_OPCODE_EFS
)
2608 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2609 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2610 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2611 if (opcode
->flags
& PPC_OPCODE_PMR
)
2612 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2613 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2614 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2615 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2616 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2620 /* Write out the instruction. */
2622 addr_mod
= frag_now_fix () & 3;
2623 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2624 as_bad (_("instruction address is not a multiple of 4"));
2625 frag_now
->insn_addr
= addr_mod
;
2626 frag_now
->has_code
= 1;
2627 md_number_to_chars (f
, insn
, 4);
2630 dwarf2_emit_insn (4);
2633 /* Create any fixups. At this point we do not use a
2634 bfd_reloc_code_real_type, but instead just use the
2635 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2636 handle fixups for any operand type, although that is admittedly
2637 not a very exciting feature. We pick a BFD reloc type in
2639 for (i
= 0; i
< fc
; i
++)
2641 const struct powerpc_operand
*operand
;
2643 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2644 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2646 reloc_howto_type
*reloc_howto
;
2651 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2655 size
= bfd_get_reloc_size (reloc_howto
);
2656 offset
= target_big_endian
? (4 - size
) : 0;
2658 if (size
< 1 || size
> 4)
2661 fixP
= fix_new_exp (frag_now
,
2662 f
- frag_now
->fr_literal
+ offset
,
2665 reloc_howto
->pc_relative
,
2668 /* Turn off complaints that the addend is too large for things like
2670 switch (fixups
[i
].reloc
)
2672 case BFD_RELOC_16_GOTOFF
:
2673 case BFD_RELOC_PPC_TOC16
:
2674 case BFD_RELOC_LO16
:
2675 case BFD_RELOC_HI16
:
2676 case BFD_RELOC_HI16_S
:
2678 case BFD_RELOC_PPC64_HIGHER
:
2679 case BFD_RELOC_PPC64_HIGHER_S
:
2680 case BFD_RELOC_PPC64_HIGHEST
:
2681 case BFD_RELOC_PPC64_HIGHEST_S
:
2683 fixP
->fx_no_overflow
= 1;
2690 fix_new_exp (frag_now
,
2691 f
- frag_now
->fr_literal
,
2694 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2695 ((bfd_reloc_code_real_type
)
2696 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2700 /* Handle a macro. Gather all the operands, transform them as
2701 described by the macro, and call md_assemble recursively. All the
2702 operands are separated by commas; we don't accept parentheses
2703 around operands here. */
2706 ppc_macro (str
, macro
)
2708 const struct powerpc_macro
*macro
;
2719 /* Gather the users operands into the operands array. */
2724 if (count
>= sizeof operands
/ sizeof operands
[0])
2726 operands
[count
++] = s
;
2727 s
= strchr (s
, ',');
2728 if (s
== (char *) NULL
)
2733 if (count
!= macro
->operands
)
2735 as_bad (_("wrong number of operands"));
2739 /* Work out how large the string must be (the size is unbounded
2740 because it includes user input). */
2742 format
= macro
->format
;
2743 while (*format
!= '\0')
2752 arg
= strtol (format
+ 1, &send
, 10);
2753 know (send
!= format
&& arg
>= 0 && arg
< count
);
2754 len
+= strlen (operands
[arg
]);
2759 /* Put the string together. */
2760 complete
= s
= (char *) alloca (len
+ 1);
2761 format
= macro
->format
;
2762 while (*format
!= '\0')
2768 arg
= strtol (format
+ 1, &send
, 10);
2769 strcpy (s
, operands
[arg
]);
2776 /* Assemble the constructed instruction. */
2777 md_assemble (complete
);
2781 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2784 ppc_section_letter (letter
, ptr_msg
)
2791 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2796 ppc_section_word (str
, len
)
2800 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2807 ppc_section_type (str
, len
)
2811 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2818 ppc_section_flags (flags
, attr
, type
)
2823 if (type
== SHT_ORDERED
)
2824 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2826 if (attr
& SHF_EXCLUDE
)
2827 flags
|= SEC_EXCLUDE
;
2831 #endif /* OBJ_ELF */
2834 /* Pseudo-op handling. */
2836 /* The .byte pseudo-op. This is similar to the normal .byte
2837 pseudo-op, but it can also take a single ASCII string. */
2841 int ignore ATTRIBUTE_UNUSED
;
2843 if (*input_line_pointer
!= '\"')
2849 /* Gather characters. A real double quote is doubled. Unusual
2850 characters are not permitted. */
2851 ++input_line_pointer
;
2856 c
= *input_line_pointer
++;
2860 if (*input_line_pointer
!= '\"')
2862 ++input_line_pointer
;
2865 FRAG_APPEND_1_CHAR (c
);
2868 demand_empty_rest_of_line ();
2873 /* XCOFF specific pseudo-op handling. */
2875 /* This is set if we are creating a .stabx symbol, since we don't want
2876 to handle symbol suffixes for such symbols. */
2877 static bfd_boolean ppc_stab_symbol
;
2879 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2880 symbols in the .bss segment as though they were local common
2881 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2882 aligns .comm and .lcomm to 4 bytes. */
2888 asection
*current_seg
= now_seg
;
2889 subsegT current_subseg
= now_subseg
;
2895 symbolS
*lcomm_sym
= NULL
;
2899 name
= input_line_pointer
;
2900 endc
= get_symbol_end ();
2901 end_name
= input_line_pointer
;
2904 if (*input_line_pointer
!= ',')
2906 as_bad (_("missing size"));
2907 ignore_rest_of_line ();
2910 ++input_line_pointer
;
2912 size
= get_absolute_expression ();
2915 as_bad (_("negative size"));
2916 ignore_rest_of_line ();
2922 /* The third argument to .comm is the alignment. */
2923 if (*input_line_pointer
!= ',')
2927 ++input_line_pointer
;
2928 align
= get_absolute_expression ();
2931 as_warn (_("ignoring bad alignment"));
2946 /* The third argument to .lcomm appears to be the real local
2947 common symbol to create. References to the symbol named in
2948 the first argument are turned into references to the third
2950 if (*input_line_pointer
!= ',')
2952 as_bad (_("missing real symbol name"));
2953 ignore_rest_of_line ();
2956 ++input_line_pointer
;
2958 lcomm_name
= input_line_pointer
;
2959 lcomm_endc
= get_symbol_end ();
2961 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2963 *input_line_pointer
= lcomm_endc
;
2967 sym
= symbol_find_or_make (name
);
2970 if (S_IS_DEFINED (sym
)
2971 || S_GET_VALUE (sym
) != 0)
2973 as_bad (_("attempt to redefine symbol"));
2974 ignore_rest_of_line ();
2978 record_alignment (bss_section
, align
);
2981 || ! S_IS_DEFINED (lcomm_sym
))
2990 S_SET_EXTERNAL (sym
);
2994 symbol_get_tc (lcomm_sym
)->output
= 1;
2995 def_sym
= lcomm_sym
;
2999 subseg_set (bss_section
, 1);
3000 frag_align (align
, 0, 0);
3002 symbol_set_frag (def_sym
, frag_now
);
3003 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3004 def_size
, (char *) NULL
);
3006 S_SET_SEGMENT (def_sym
, bss_section
);
3007 symbol_get_tc (def_sym
)->align
= align
;
3011 /* Align the size of lcomm_sym. */
3012 symbol_get_frag (lcomm_sym
)->fr_offset
=
3013 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3014 &~ ((1 << align
) - 1));
3015 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3016 symbol_get_tc (lcomm_sym
)->align
= align
;
3021 /* Make sym an offset from lcomm_sym. */
3022 S_SET_SEGMENT (sym
, bss_section
);
3023 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3024 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3025 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3028 subseg_set (current_seg
, current_subseg
);
3030 demand_empty_rest_of_line ();
3033 /* The .csect pseudo-op. This switches us into a different
3034 subsegment. The first argument is a symbol whose value is the
3035 start of the .csect. In COFF, csect symbols get special aux
3036 entries defined by the x_csect field of union internal_auxent. The
3037 optional second argument is the alignment (the default is 2). */
3041 int ignore ATTRIBUTE_UNUSED
;
3048 name
= input_line_pointer
;
3049 endc
= get_symbol_end ();
3051 sym
= symbol_find_or_make (name
);
3053 *input_line_pointer
= endc
;
3055 if (S_GET_NAME (sym
)[0] == '\0')
3057 /* An unnamed csect is assumed to be [PR]. */
3058 symbol_get_tc (sym
)->class = XMC_PR
;
3062 if (*input_line_pointer
== ',')
3064 ++input_line_pointer
;
3065 align
= get_absolute_expression ();
3068 ppc_change_csect (sym
, align
);
3070 demand_empty_rest_of_line ();
3073 /* Change to a different csect. */
3076 ppc_change_csect (sym
, align
)
3080 if (S_IS_DEFINED (sym
))
3081 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3091 /* This is a new csect. We need to look at the symbol class to
3092 figure out whether it should go in the text section or the
3096 switch (symbol_get_tc (sym
)->class)
3106 S_SET_SEGMENT (sym
, text_section
);
3107 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3108 ++ppc_text_subsegment
;
3109 list_ptr
= &ppc_text_csects
;
3119 if (ppc_toc_csect
!= NULL
3120 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3121 == ppc_data_subsegment
))
3123 S_SET_SEGMENT (sym
, data_section
);
3124 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3125 ++ppc_data_subsegment
;
3126 list_ptr
= &ppc_data_csects
;
3132 /* We set the obstack chunk size to a small value before
3133 changing subsegments, so that we don't use a lot of memory
3134 space for what may be a small section. */
3135 hold_chunksize
= chunksize
;
3138 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3139 symbol_get_tc (sym
)->subseg
);
3141 chunksize
= hold_chunksize
;
3144 ppc_after_toc_frag
= frag_now
;
3146 record_alignment (sec
, align
);
3148 frag_align_code (align
, 0);
3150 frag_align (align
, 0, 0);
3152 symbol_set_frag (sym
, frag_now
);
3153 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3155 symbol_get_tc (sym
)->align
= align
;
3156 symbol_get_tc (sym
)->output
= 1;
3157 symbol_get_tc (sym
)->within
= sym
;
3159 for (list
= *list_ptr
;
3160 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3161 list
= symbol_get_tc (list
)->next
)
3163 symbol_get_tc (list
)->next
= sym
;
3165 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3166 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3170 ppc_current_csect
= sym
;
3173 /* This function handles the .text and .data pseudo-ops. These
3174 pseudo-ops aren't really used by XCOFF; we implement them for the
3175 convenience of people who aren't used to XCOFF. */
3186 else if (type
== 'd')
3191 sym
= symbol_find_or_make (name
);
3193 ppc_change_csect (sym
, 2);
3195 demand_empty_rest_of_line ();
3198 /* This function handles the .section pseudo-op. This is mostly to
3199 give an error, since XCOFF only supports .text, .data and .bss, but
3200 we do permit the user to name the text or data section. */
3203 ppc_named_section (ignore
)
3204 int ignore ATTRIBUTE_UNUSED
;
3207 const char *real_name
;
3211 user_name
= input_line_pointer
;
3212 c
= get_symbol_end ();
3214 if (strcmp (user_name
, ".text") == 0)
3215 real_name
= ".text[PR]";
3216 else if (strcmp (user_name
, ".data") == 0)
3217 real_name
= ".data[RW]";
3220 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3221 *input_line_pointer
= c
;
3222 ignore_rest_of_line ();
3226 *input_line_pointer
= c
;
3228 sym
= symbol_find_or_make (real_name
);
3230 ppc_change_csect (sym
, 2);
3232 demand_empty_rest_of_line ();
3235 /* The .extern pseudo-op. We create an undefined symbol. */
3239 int ignore ATTRIBUTE_UNUSED
;
3244 name
= input_line_pointer
;
3245 endc
= get_symbol_end ();
3247 (void) symbol_find_or_make (name
);
3249 *input_line_pointer
= endc
;
3251 demand_empty_rest_of_line ();
3254 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3258 int ignore ATTRIBUTE_UNUSED
;
3264 name
= input_line_pointer
;
3265 endc
= get_symbol_end ();
3267 sym
= symbol_find_or_make (name
);
3269 *input_line_pointer
= endc
;
3271 symbol_get_tc (sym
)->output
= 1;
3273 demand_empty_rest_of_line ();
3276 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3277 although I don't know why it bothers. */
3281 int ignore ATTRIBUTE_UNUSED
;
3288 name
= input_line_pointer
;
3289 endc
= get_symbol_end ();
3291 sym
= symbol_find_or_make (name
);
3293 *input_line_pointer
= endc
;
3295 if (*input_line_pointer
!= ',')
3297 as_bad (_("missing rename string"));
3298 ignore_rest_of_line ();
3301 ++input_line_pointer
;
3303 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3305 demand_empty_rest_of_line ();
3308 /* The .stabx pseudo-op. This is similar to a normal .stabs
3309 pseudo-op, but slightly different. A sample is
3310 .stabx "main:F-1",.main,142,0
3311 The first argument is the symbol name to create. The second is the
3312 value, and the third is the storage class. The fourth seems to be
3313 always zero, and I am assuming it is the type. */
3317 int ignore ATTRIBUTE_UNUSED
;
3324 name
= demand_copy_C_string (&len
);
3326 if (*input_line_pointer
!= ',')
3328 as_bad (_("missing value"));
3331 ++input_line_pointer
;
3333 ppc_stab_symbol
= TRUE
;
3334 sym
= symbol_make (name
);
3335 ppc_stab_symbol
= FALSE
;
3337 symbol_get_tc (sym
)->real_name
= name
;
3339 (void) expression (&exp
);
3346 as_bad (_("illegal .stabx expression; zero assumed"));
3347 exp
.X_add_number
= 0;
3350 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3351 symbol_set_frag (sym
, &zero_address_frag
);
3355 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3356 symbol_set_value_expression (sym
, &exp
);
3360 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3361 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3366 /* The value is some complex expression. This will probably
3367 fail at some later point, but this is probably the right
3368 thing to do here. */
3369 symbol_set_value_expression (sym
, &exp
);
3373 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3374 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3376 if (*input_line_pointer
!= ',')
3378 as_bad (_("missing class"));
3381 ++input_line_pointer
;
3383 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3385 if (*input_line_pointer
!= ',')
3387 as_bad (_("missing type"));
3390 ++input_line_pointer
;
3392 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3394 symbol_get_tc (sym
)->output
= 1;
3396 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3398 symbol_get_tc (sym
)->within
= ppc_current_block
;
3403 .stabx "z",arrays_,133,0
3406 .comm arrays_,13768,3
3408 resolve_symbol_value will copy the exp's "within" into sym's when the
3409 offset is 0. Since this seems to be corner case problem,
3410 only do the correction for storage class C_STSYM. A better solution
3411 would be to have the tc field updated in ppc_symbol_new_hook. */
3413 if (exp
.X_op
== O_symbol
)
3415 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3419 if (exp
.X_op
!= O_symbol
3420 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3421 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3422 ppc_frob_label (sym
);
3425 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3426 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3427 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3428 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3431 demand_empty_rest_of_line ();
3434 /* The .function pseudo-op. This takes several arguments. The first
3435 argument seems to be the external name of the symbol. The second
3436 argument seems to be the label for the start of the function. gcc
3437 uses the same name for both. I have no idea what the third and
3438 fourth arguments are meant to be. The optional fifth argument is
3439 an expression for the size of the function. In COFF this symbol
3440 gets an aux entry like that used for a csect. */
3443 ppc_function (ignore
)
3444 int ignore ATTRIBUTE_UNUSED
;
3452 name
= input_line_pointer
;
3453 endc
= get_symbol_end ();
3455 /* Ignore any [PR] suffix. */
3456 name
= ppc_canonicalize_symbol_name (name
);
3457 s
= strchr (name
, '[');
3458 if (s
!= (char *) NULL
3459 && strcmp (s
+ 1, "PR]") == 0)
3462 ext_sym
= symbol_find_or_make (name
);
3464 *input_line_pointer
= endc
;
3466 if (*input_line_pointer
!= ',')
3468 as_bad (_("missing symbol name"));
3469 ignore_rest_of_line ();
3472 ++input_line_pointer
;
3474 name
= input_line_pointer
;
3475 endc
= get_symbol_end ();
3477 lab_sym
= symbol_find_or_make (name
);
3479 *input_line_pointer
= endc
;
3481 if (ext_sym
!= lab_sym
)
3485 exp
.X_op
= O_symbol
;
3486 exp
.X_add_symbol
= lab_sym
;
3487 exp
.X_op_symbol
= NULL
;
3488 exp
.X_add_number
= 0;
3490 symbol_set_value_expression (ext_sym
, &exp
);
3493 if (symbol_get_tc (ext_sym
)->class == -1)
3494 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3495 symbol_get_tc (ext_sym
)->output
= 1;
3497 if (*input_line_pointer
== ',')
3501 /* Ignore the third argument. */
3502 ++input_line_pointer
;
3503 expression (&ignore
);
3504 if (*input_line_pointer
== ',')
3506 /* Ignore the fourth argument. */
3507 ++input_line_pointer
;
3508 expression (&ignore
);
3509 if (*input_line_pointer
== ',')
3511 /* The fifth argument is the function size. */
3512 ++input_line_pointer
;
3513 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3516 &zero_address_frag
);
3517 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3522 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3523 SF_SET_FUNCTION (ext_sym
);
3524 SF_SET_PROCESS (ext_sym
);
3525 coff_add_linesym (ext_sym
);
3527 demand_empty_rest_of_line ();
3530 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3531 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3532 with the correct line number */
3534 static symbolS
*saved_bi_sym
= 0;
3538 int ignore ATTRIBUTE_UNUSED
;
3542 sym
= symbol_make (".bf");
3543 S_SET_SEGMENT (sym
, text_section
);
3544 symbol_set_frag (sym
, frag_now
);
3545 S_SET_VALUE (sym
, frag_now_fix ());
3546 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3548 coff_line_base
= get_absolute_expression ();
3550 S_SET_NUMBER_AUXILIARY (sym
, 1);
3551 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3553 /* Line number for bi. */
3556 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3561 symbol_get_tc (sym
)->output
= 1;
3563 ppc_frob_label (sym
);
3565 demand_empty_rest_of_line ();
3568 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3569 ".ef", except that the line number is absolute, not relative to the
3570 most recent ".bf" symbol. */
3574 int ignore ATTRIBUTE_UNUSED
;
3578 sym
= symbol_make (".ef");
3579 S_SET_SEGMENT (sym
, text_section
);
3580 symbol_set_frag (sym
, frag_now
);
3581 S_SET_VALUE (sym
, frag_now_fix ());
3582 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3583 S_SET_NUMBER_AUXILIARY (sym
, 1);
3584 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3585 symbol_get_tc (sym
)->output
= 1;
3587 ppc_frob_label (sym
);
3589 demand_empty_rest_of_line ();
3592 /* The .bi and .ei pseudo-ops. These take a string argument and
3593 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3594 the symbol list. The value of .bi will be know when the next .bf
3601 static symbolS
*last_biei
;
3608 name
= demand_copy_C_string (&len
);
3610 /* The value of these symbols is actually file offset. Here we set
3611 the value to the index into the line number entries. In
3612 ppc_frob_symbols we set the fix_line field, which will cause BFD
3613 to do the right thing. */
3615 sym
= symbol_make (name
);
3616 /* obj-coff.c currently only handles line numbers correctly in the
3618 S_SET_SEGMENT (sym
, text_section
);
3619 S_SET_VALUE (sym
, coff_n_line_nos
);
3620 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3622 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3623 symbol_get_tc (sym
)->output
= 1;
3631 for (look
= last_biei
? last_biei
: symbol_rootP
;
3632 (look
!= (symbolS
*) NULL
3633 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3634 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3635 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3636 look
= symbol_next (look
))
3638 if (look
!= (symbolS
*) NULL
)
3640 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3641 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3645 demand_empty_rest_of_line ();
3648 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3649 There is one argument, which is a csect symbol. The value of the
3650 .bs symbol is the index of this csect symbol. */
3654 int ignore ATTRIBUTE_UNUSED
;
3661 if (ppc_current_block
!= NULL
)
3662 as_bad (_("nested .bs blocks"));
3664 name
= input_line_pointer
;
3665 endc
= get_symbol_end ();
3667 csect
= symbol_find_or_make (name
);
3669 *input_line_pointer
= endc
;
3671 sym
= symbol_make (".bs");
3672 S_SET_SEGMENT (sym
, now_seg
);
3673 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3674 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3675 symbol_get_tc (sym
)->output
= 1;
3677 symbol_get_tc (sym
)->within
= csect
;
3679 ppc_frob_label (sym
);
3681 ppc_current_block
= sym
;
3683 demand_empty_rest_of_line ();
3686 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3690 int ignore ATTRIBUTE_UNUSED
;
3694 if (ppc_current_block
== NULL
)
3695 as_bad (_(".es without preceding .bs"));
3697 sym
= symbol_make (".es");
3698 S_SET_SEGMENT (sym
, now_seg
);
3699 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3700 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3701 symbol_get_tc (sym
)->output
= 1;
3703 ppc_frob_label (sym
);
3705 ppc_current_block
= NULL
;
3707 demand_empty_rest_of_line ();
3710 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3715 int ignore ATTRIBUTE_UNUSED
;
3719 sym
= symbol_make (".bb");
3720 S_SET_SEGMENT (sym
, text_section
);
3721 symbol_set_frag (sym
, frag_now
);
3722 S_SET_VALUE (sym
, frag_now_fix ());
3723 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3725 S_SET_NUMBER_AUXILIARY (sym
, 1);
3726 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3728 symbol_get_tc (sym
)->output
= 1;
3730 SF_SET_PROCESS (sym
);
3732 ppc_frob_label (sym
);
3734 demand_empty_rest_of_line ();
3737 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3742 int ignore ATTRIBUTE_UNUSED
;
3746 sym
= symbol_make (".eb");
3747 S_SET_SEGMENT (sym
, text_section
);
3748 symbol_set_frag (sym
, frag_now
);
3749 S_SET_VALUE (sym
, frag_now_fix ());
3750 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3751 S_SET_NUMBER_AUXILIARY (sym
, 1);
3752 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3753 symbol_get_tc (sym
)->output
= 1;
3755 SF_SET_PROCESS (sym
);
3757 ppc_frob_label (sym
);
3759 demand_empty_rest_of_line ();
3762 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3767 int ignore ATTRIBUTE_UNUSED
;
3773 name
= demand_copy_C_string (&len
);
3774 sym
= symbol_make (name
);
3775 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3776 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3777 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3778 S_SET_VALUE (sym
, 0);
3779 symbol_get_tc (sym
)->output
= 1;
3781 ppc_frob_label (sym
);
3783 demand_empty_rest_of_line ();
3786 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3790 int ignore ATTRIBUTE_UNUSED
;
3794 sym
= symbol_make (".ec");
3795 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3796 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3797 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3798 S_SET_VALUE (sym
, 0);
3799 symbol_get_tc (sym
)->output
= 1;
3801 ppc_frob_label (sym
);
3803 demand_empty_rest_of_line ();
3806 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3810 int ignore ATTRIBUTE_UNUSED
;
3812 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3813 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3820 subseg
= ppc_data_subsegment
;
3821 ++ppc_data_subsegment
;
3823 subseg_new (segment_name (data_section
), subseg
);
3824 ppc_toc_frag
= frag_now
;
3826 sym
= symbol_find_or_make ("TOC[TC0]");
3827 symbol_set_frag (sym
, frag_now
);
3828 S_SET_SEGMENT (sym
, data_section
);
3829 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3830 symbol_get_tc (sym
)->subseg
= subseg
;
3831 symbol_get_tc (sym
)->output
= 1;
3832 symbol_get_tc (sym
)->within
= sym
;
3834 ppc_toc_csect
= sym
;
3836 for (list
= ppc_data_csects
;
3837 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3838 list
= symbol_get_tc (list
)->next
)
3840 symbol_get_tc (list
)->next
= sym
;
3842 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3843 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3847 ppc_current_csect
= ppc_toc_csect
;
3849 demand_empty_rest_of_line ();
3852 /* The AIX assembler automatically aligns the operands of a .long or
3853 .short pseudo-op, and we want to be compatible. */
3856 ppc_xcoff_cons (log_size
)
3859 frag_align (log_size
, 0, 0);
3860 record_alignment (now_seg
, log_size
);
3861 cons (1 << log_size
);
3866 int dummy ATTRIBUTE_UNUSED
;
3871 (void) expression (&exp
);
3873 if (exp
.X_op
!= O_constant
)
3875 as_bad (_("non-constant byte count"));
3879 byte_count
= exp
.X_add_number
;
3881 if (*input_line_pointer
!= ',')
3883 as_bad (_("missing value"));
3887 ++input_line_pointer
;
3891 #endif /* OBJ_XCOFF */
3892 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3894 /* The .tc pseudo-op. This is used when generating either XCOFF or
3895 ELF. This takes two or more arguments.
3897 When generating XCOFF output, the first argument is the name to
3898 give to this location in the toc; this will be a symbol with class
3899 TC. The rest of the arguments are N-byte values to actually put at
3900 this location in the TOC; often there is just one more argument, a
3901 relocatable symbol reference. The size of the value to store
3902 depends on target word size. A 32-bit target uses 4-byte values, a
3903 64-bit target uses 8-byte values.
3905 When not generating XCOFF output, the arguments are the same, but
3906 the first argument is simply ignored. */
3910 int ignore ATTRIBUTE_UNUSED
;
3914 /* Define the TOC symbol name. */
3920 if (ppc_toc_csect
== (symbolS
*) NULL
3921 || ppc_toc_csect
!= ppc_current_csect
)
3923 as_bad (_(".tc not in .toc section"));
3924 ignore_rest_of_line ();
3928 name
= input_line_pointer
;
3929 endc
= get_symbol_end ();
3931 sym
= symbol_find_or_make (name
);
3933 *input_line_pointer
= endc
;
3935 if (S_IS_DEFINED (sym
))
3939 label
= symbol_get_tc (ppc_current_csect
)->within
;
3940 if (symbol_get_tc (label
)->class != XMC_TC0
)
3942 as_bad (_(".tc with no label"));
3943 ignore_rest_of_line ();
3947 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3948 symbol_set_frag (label
, symbol_get_frag (sym
));
3949 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3951 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3952 ++input_line_pointer
;
3957 S_SET_SEGMENT (sym
, now_seg
);
3958 symbol_set_frag (sym
, frag_now
);
3959 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3960 symbol_get_tc (sym
)->class = XMC_TC
;
3961 symbol_get_tc (sym
)->output
= 1;
3963 ppc_frob_label (sym
);
3966 #endif /* OBJ_XCOFF */
3970 /* Skip the TOC symbol name. */
3971 while (is_part_of_name (*input_line_pointer
)
3972 || *input_line_pointer
== '['
3973 || *input_line_pointer
== ']'
3974 || *input_line_pointer
== '{'
3975 || *input_line_pointer
== '}')
3976 ++input_line_pointer
;
3978 /* Align to a four/eight byte boundary. */
3979 align
= ppc_obj64
? 3 : 2;
3980 frag_align (align
, 0, 0);
3981 record_alignment (now_seg
, align
);
3982 #endif /* OBJ_ELF */
3984 if (*input_line_pointer
!= ',')
3985 demand_empty_rest_of_line ();
3988 ++input_line_pointer
;
3989 cons (ppc_obj64
? 8 : 4);
3993 /* Pseudo-op .machine. */
3996 ppc_machine (ignore
)
3997 int ignore ATTRIBUTE_UNUSED
;
4000 #define MAX_HISTORY 100
4001 static unsigned long *cpu_history
;
4002 static int curr_hist
;
4006 if (*input_line_pointer
== '"')
4009 cpu_string
= demand_copy_C_string (&len
);
4014 cpu_string
= input_line_pointer
;
4015 c
= get_symbol_end ();
4016 cpu_string
= xstrdup (cpu_string
);
4017 *input_line_pointer
= c
;
4020 if (cpu_string
!= NULL
)
4022 unsigned long old_cpu
= ppc_cpu
;
4025 for (p
= cpu_string
; *p
!= 0; p
++)
4028 if (strcmp (cpu_string
, "push") == 0)
4030 if (cpu_history
== NULL
)
4031 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4033 if (curr_hist
>= MAX_HISTORY
)
4034 as_bad (_(".machine stack overflow"));
4036 cpu_history
[curr_hist
++] = ppc_cpu
;
4038 else if (strcmp (cpu_string
, "pop") == 0)
4041 as_bad (_(".machine stack underflow"));
4043 ppc_cpu
= cpu_history
[--curr_hist
];
4045 else if (parse_cpu (cpu_string
))
4048 as_bad (_("invalid machine `%s'"), cpu_string
);
4050 if (ppc_cpu
!= old_cpu
)
4051 ppc_setup_opcodes ();
4054 demand_empty_rest_of_line ();
4057 /* See whether a symbol is in the TOC section. */
4060 ppc_is_toc_sym (sym
)
4064 return symbol_get_tc (sym
)->class == XMC_TC
;
4067 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4069 return strcmp (sname
, ".toc") == 0;
4071 return strcmp (sname
, ".got") == 0;
4074 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4078 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4080 /* Set the current section. */
4082 ppc_set_current_section (new)
4085 ppc_previous_section
= ppc_current_section
;
4086 ppc_current_section
= new;
4089 /* pseudo-op: .previous
4090 behaviour: toggles the current section with the previous section.
4092 warnings: "No previous section" */
4095 ppc_previous (ignore
)
4096 int ignore ATTRIBUTE_UNUSED
;
4100 if (ppc_previous_section
== NULL
)
4102 as_warn (_("No previous section to return to. Directive ignored."));
4106 subseg_set (ppc_previous_section
, 0);
4108 ppc_set_current_section (ppc_previous_section
);
4111 /* pseudo-op: .pdata
4112 behaviour: predefined read only data section
4116 initial: .section .pdata "adr3"
4117 a - don't know -- maybe a misprint
4118 d - initialized data
4120 3 - double word aligned (that would be 4 byte boundary)
4123 Tag index tables (also known as the function table) for exception
4124 handling, debugging, etc. */
4128 int ignore ATTRIBUTE_UNUSED
;
4130 if (pdata_section
== 0)
4132 pdata_section
= subseg_new (".pdata", 0);
4134 bfd_set_section_flags (stdoutput
, pdata_section
,
4135 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4136 | SEC_READONLY
| SEC_DATA
));
4138 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4142 pdata_section
= subseg_new (".pdata", 0);
4144 ppc_set_current_section (pdata_section
);
4147 /* pseudo-op: .ydata
4148 behaviour: predefined read only data section
4152 initial: .section .ydata "drw3"
4153 a - don't know -- maybe a misprint
4154 d - initialized data
4156 3 - double word aligned (that would be 4 byte boundary)
4158 Tag tables (also known as the scope table) for exception handling,
4163 int ignore ATTRIBUTE_UNUSED
;
4165 if (ydata_section
== 0)
4167 ydata_section
= subseg_new (".ydata", 0);
4168 bfd_set_section_flags (stdoutput
, ydata_section
,
4169 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4170 | SEC_READONLY
| SEC_DATA
));
4172 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4176 ydata_section
= subseg_new (".ydata", 0);
4178 ppc_set_current_section (ydata_section
);
4181 /* pseudo-op: .reldata
4182 behaviour: predefined read write data section
4183 double word aligned (4-byte)
4184 FIXME: relocation is applied to it
4185 FIXME: what's the difference between this and .data?
4188 initial: .section .reldata "drw3"
4189 d - initialized data
4192 3 - double word aligned (that would be 8 byte boundary)
4195 Like .data, but intended to hold data subject to relocation, such as
4196 function descriptors, etc. */
4199 ppc_reldata (ignore
)
4200 int ignore ATTRIBUTE_UNUSED
;
4202 if (reldata_section
== 0)
4204 reldata_section
= subseg_new (".reldata", 0);
4206 bfd_set_section_flags (stdoutput
, reldata_section
,
4207 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4210 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4214 reldata_section
= subseg_new (".reldata", 0);
4216 ppc_set_current_section (reldata_section
);
4219 /* pseudo-op: .rdata
4220 behaviour: predefined read only data section
4224 initial: .section .rdata "dr3"
4225 d - initialized data
4227 3 - double word aligned (that would be 4 byte boundary) */
4231 int ignore ATTRIBUTE_UNUSED
;
4233 if (rdata_section
== 0)
4235 rdata_section
= subseg_new (".rdata", 0);
4236 bfd_set_section_flags (stdoutput
, rdata_section
,
4237 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4238 | SEC_READONLY
| SEC_DATA
));
4240 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4244 rdata_section
= subseg_new (".rdata", 0);
4246 ppc_set_current_section (rdata_section
);
4249 /* pseudo-op: .ualong
4250 behaviour: much like .int, with the exception that no alignment is
4252 FIXME: test the alignment statement
4258 int ignore ATTRIBUTE_UNUSED
;
4264 /* pseudo-op: .znop <symbol name>
4265 behaviour: Issue a nop instruction
4266 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4267 the supplied symbol name.
4269 warnings: Missing symbol name */
4273 int ignore ATTRIBUTE_UNUSED
;
4276 const struct powerpc_opcode
*opcode
;
4287 /* Strip out the symbol name. */
4288 symbol_name
= input_line_pointer
;
4289 c
= get_symbol_end ();
4291 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4292 strcpy (name
, symbol_name
);
4294 sym
= symbol_find_or_make (name
);
4296 *input_line_pointer
= c
;
4300 /* Look up the opcode in the hash table. */
4301 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4303 /* Stick in the nop. */
4304 insn
= opcode
->opcode
;
4306 /* Write out the instruction. */
4308 md_number_to_chars (f
, insn
, 4);
4310 f
- frag_now
->fr_literal
,
4315 BFD_RELOC_16_GOT_PCREL
);
4328 register char *name
;
4332 register symbolS
*symbolP
;
4335 name
= input_line_pointer
;
4336 c
= get_symbol_end ();
4338 /* just after name is now '\0'. */
4339 p
= input_line_pointer
;
4342 if (*input_line_pointer
!= ',')
4344 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4345 ignore_rest_of_line ();
4349 input_line_pointer
++; /* skip ',' */
4350 if ((temp
= get_absolute_expression ()) < 0)
4352 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4353 ignore_rest_of_line ();
4359 /* The third argument to .comm is the alignment. */
4360 if (*input_line_pointer
!= ',')
4364 ++input_line_pointer
;
4365 align
= get_absolute_expression ();
4368 as_warn (_("ignoring bad alignment"));
4375 symbolP
= symbol_find_or_make (name
);
4378 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4380 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4381 S_GET_NAME (symbolP
));
4382 ignore_rest_of_line ();
4386 if (S_GET_VALUE (symbolP
))
4388 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4389 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4390 S_GET_NAME (symbolP
),
4391 (long) S_GET_VALUE (symbolP
),
4396 S_SET_VALUE (symbolP
, (valueT
) temp
);
4397 S_SET_EXTERNAL (symbolP
);
4400 demand_empty_rest_of_line ();
4404 * implement the .section pseudo op:
4405 * .section name {, "flags"}
4407 * | +--- optional flags: 'b' for bss
4409 * +-- section name 'l' for lib
4413 * 'd' (apparently m88k for data)
4415 * But if the argument is not a quoted string, treat it as a
4416 * subsegment number.
4418 * FIXME: this is a copy of the section processing from obj-coff.c, with
4419 * additions/changes for the moto-pas assembler support. There are three
4422 * FIXME: I just noticed this. This doesn't work at all really. It it
4423 * setting bits that bfd probably neither understands or uses. The
4424 * correct approach (?) will have to incorporate extra fields attached
4425 * to the section to hold the system specific stuff. (krk)
4428 * 'a' - unknown - referred to in documentation, but no definition supplied
4429 * 'c' - section has code
4430 * 'd' - section has initialized data
4431 * 'u' - section has uninitialized data
4432 * 'i' - section contains directives (info)
4433 * 'n' - section can be discarded
4434 * 'R' - remove section at link time
4436 * Section Protection:
4437 * 'r' - section is readable
4438 * 'w' - section is writeable
4439 * 'x' - section is executable
4440 * 's' - section is sharable
4442 * Section Alignment:
4443 * '0' - align to byte boundary
4444 * '1' - align to halfword undary
4445 * '2' - align to word boundary
4446 * '3' - align to doubleword boundary
4447 * '4' - align to quadword boundary
4448 * '5' - align to 32 byte boundary
4449 * '6' - align to 64 byte boundary
4454 ppc_pe_section (ignore
)
4455 int ignore ATTRIBUTE_UNUSED
;
4457 /* Strip out the section name. */
4466 section_name
= input_line_pointer
;
4467 c
= get_symbol_end ();
4469 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4470 strcpy (name
, section_name
);
4472 *input_line_pointer
= c
;
4477 flags
= SEC_NO_FLAGS
;
4479 if (strcmp (name
, ".idata$2") == 0)
4483 else if (strcmp (name
, ".idata$3") == 0)
4487 else if (strcmp (name
, ".idata$4") == 0)
4491 else if (strcmp (name
, ".idata$5") == 0)
4495 else if (strcmp (name
, ".idata$6") == 0)
4500 /* Default alignment to 16 byte boundary. */
4503 if (*input_line_pointer
== ',')
4505 ++input_line_pointer
;
4507 if (*input_line_pointer
!= '"')
4508 exp
= get_absolute_expression ();
4511 ++input_line_pointer
;
4512 while (*input_line_pointer
!= '"'
4513 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4515 switch (*input_line_pointer
)
4517 /* Section Contents */
4518 case 'a': /* unknown */
4519 as_bad (_("Unsupported section attribute -- 'a'"));
4521 case 'c': /* code section */
4524 case 'd': /* section has initialized data */
4527 case 'u': /* section has uninitialized data */
4528 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4532 case 'i': /* section contains directives (info) */
4533 /* FIXME: This is IMAGE_SCN_LNK_INFO
4535 flags
|= SEC_HAS_CONTENTS
;
4537 case 'n': /* section can be discarded */
4540 case 'R': /* Remove section at link time */
4541 flags
|= SEC_NEVER_LOAD
;
4544 /* Section Protection */
4545 case 'r': /* section is readable */
4546 flags
|= IMAGE_SCN_MEM_READ
;
4548 case 'w': /* section is writeable */
4549 flags
|= IMAGE_SCN_MEM_WRITE
;
4551 case 'x': /* section is executable */
4552 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4554 case 's': /* section is sharable */
4555 flags
|= IMAGE_SCN_MEM_SHARED
;
4558 /* Section Alignment */
4559 case '0': /* align to byte boundary */
4560 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4563 case '1': /* align to halfword boundary */
4564 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4567 case '2': /* align to word boundary */
4568 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4571 case '3': /* align to doubleword boundary */
4572 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4575 case '4': /* align to quadword boundary */
4576 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4579 case '5': /* align to 32 byte boundary */
4580 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4583 case '6': /* align to 64 byte boundary */
4584 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4589 as_bad (_("unknown section attribute '%c'"),
4590 *input_line_pointer
);
4593 ++input_line_pointer
;
4595 if (*input_line_pointer
== '"')
4596 ++input_line_pointer
;
4600 sec
= subseg_new (name
, (subsegT
) exp
);
4602 ppc_set_current_section (sec
);
4604 if (flags
!= SEC_NO_FLAGS
)
4606 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4607 as_bad (_("error setting flags for \"%s\": %s"),
4608 bfd_section_name (stdoutput
, sec
),
4609 bfd_errmsg (bfd_get_error ()));
4612 bfd_set_section_alignment (stdoutput
, sec
, align
);
4617 ppc_pe_function (ignore
)
4618 int ignore ATTRIBUTE_UNUSED
;
4624 name
= input_line_pointer
;
4625 endc
= get_symbol_end ();
4627 ext_sym
= symbol_find_or_make (name
);
4629 *input_line_pointer
= endc
;
4631 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4632 SF_SET_FUNCTION (ext_sym
);
4633 SF_SET_PROCESS (ext_sym
);
4634 coff_add_linesym (ext_sym
);
4636 demand_empty_rest_of_line ();
4640 ppc_pe_tocd (ignore
)
4641 int ignore ATTRIBUTE_UNUSED
;
4643 if (tocdata_section
== 0)
4645 tocdata_section
= subseg_new (".tocd", 0);
4646 /* FIXME: section flags won't work. */
4647 bfd_set_section_flags (stdoutput
, tocdata_section
,
4648 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4649 | SEC_READONLY
| SEC_DATA
));
4651 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4655 rdata_section
= subseg_new (".tocd", 0);
4658 ppc_set_current_section (tocdata_section
);
4660 demand_empty_rest_of_line ();
4663 /* Don't adjust TOC relocs to use the section symbol. */
4666 ppc_pe_fix_adjustable (fix
)
4669 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4676 /* XCOFF specific symbol and file handling. */
4678 /* Canonicalize the symbol name. We use the to force the suffix, if
4679 any, to use square brackets, and to be in upper case. */
4682 ppc_canonicalize_symbol_name (name
)
4687 if (ppc_stab_symbol
)
4690 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4704 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4707 if (*s
== '\0' || s
[1] != '\0')
4708 as_bad (_("bad symbol suffix"));
4716 /* Set the class of a symbol based on the suffix, if any. This is
4717 called whenever a new symbol is created. */
4720 ppc_symbol_new_hook (sym
)
4723 struct ppc_tc_sy
*tc
;
4726 tc
= symbol_get_tc (sym
);
4730 tc
->real_name
= NULL
;
4736 if (ppc_stab_symbol
)
4739 s
= strchr (S_GET_NAME (sym
), '[');
4740 if (s
== (const char *) NULL
)
4742 /* There is no suffix. */
4751 if (strcmp (s
, "BS]") == 0)
4755 if (strcmp (s
, "DB]") == 0)
4757 else if (strcmp (s
, "DS]") == 0)
4761 if (strcmp (s
, "GL]") == 0)
4765 if (strcmp (s
, "PR]") == 0)
4769 if (strcmp (s
, "RO]") == 0)
4771 else if (strcmp (s
, "RW]") == 0)
4775 if (strcmp (s
, "SV]") == 0)
4779 if (strcmp (s
, "TC]") == 0)
4781 else if (strcmp (s
, "TI]") == 0)
4783 else if (strcmp (s
, "TB]") == 0)
4785 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4786 tc
->class = XMC_TC0
;
4789 if (strcmp (s
, "UA]") == 0)
4791 else if (strcmp (s
, "UC]") == 0)
4795 if (strcmp (s
, "XO]") == 0)
4800 if (tc
->class == -1)
4801 as_bad (_("Unrecognized symbol suffix"));
4804 /* Set the class of a label based on where it is defined. This
4805 handles symbols without suffixes. Also, move the symbol so that it
4806 follows the csect symbol. */
4809 ppc_frob_label (sym
)
4812 if (ppc_current_csect
!= (symbolS
*) NULL
)
4814 if (symbol_get_tc (sym
)->class == -1)
4815 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4817 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4818 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4819 &symbol_rootP
, &symbol_lastP
);
4820 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4824 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4825 seen. It tells ppc_adjust_symtab whether it needs to look through
4828 static bfd_boolean ppc_saw_abs
;
4830 /* Change the name of a symbol just before writing it out. Set the
4831 real name if the .rename pseudo-op was used. Otherwise, remove any
4832 class suffix. Return 1 if the symbol should not be included in the
4836 ppc_frob_symbol (sym
)
4839 static symbolS
*ppc_last_function
;
4840 static symbolS
*set_end
;
4842 /* Discard symbols that should not be included in the output symbol
4844 if (! symbol_used_in_reloc_p (sym
)
4845 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4846 || (! S_IS_EXTERNAL (sym
)
4847 && ! symbol_get_tc (sym
)->output
4848 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4851 /* This one will disappear anyway. Don't make a csect sym for it. */
4852 if (sym
== abs_section_sym
)
4855 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4856 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4862 name
= S_GET_NAME (sym
);
4863 s
= strchr (name
, '[');
4864 if (s
!= (char *) NULL
)
4870 snew
= xmalloc (len
+ 1);
4871 memcpy (snew
, name
, len
);
4874 S_SET_NAME (sym
, snew
);
4878 if (set_end
!= (symbolS
*) NULL
)
4880 SA_SET_SYM_ENDNDX (set_end
, sym
);
4884 if (SF_GET_FUNCTION (sym
))
4886 if (ppc_last_function
!= (symbolS
*) NULL
)
4887 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4888 ppc_last_function
= sym
;
4889 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4891 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4892 SA_SET_SYM_FSIZE (sym
,
4893 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4896 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4897 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4899 if (ppc_last_function
== (symbolS
*) NULL
)
4900 as_bad (_(".ef with no preceding .function"));
4903 set_end
= ppc_last_function
;
4904 ppc_last_function
= NULL
;
4906 /* We don't have a C_EFCN symbol, but we need to force the
4907 COFF backend to believe that it has seen one. */
4908 coff_last_function
= NULL
;
4912 if (! S_IS_EXTERNAL (sym
)
4913 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4914 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4915 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4916 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4917 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4918 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4919 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4920 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4921 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4922 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4924 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4925 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4928 union internal_auxent
*a
;
4930 /* Create a csect aux. */
4931 i
= S_GET_NUMBER_AUXILIARY (sym
);
4932 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4933 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4934 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4936 /* This is the TOC table. */
4937 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4938 a
->x_csect
.x_scnlen
.l
= 0;
4939 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4941 else if (symbol_get_tc (sym
)->subseg
!= 0)
4943 /* This is a csect symbol. x_scnlen is the size of the
4945 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4946 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4947 S_GET_SEGMENT (sym
))
4948 - S_GET_VALUE (sym
));
4951 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4952 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4953 - S_GET_VALUE (sym
));
4955 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4957 else if (S_GET_SEGMENT (sym
) == bss_section
)
4959 /* This is a common symbol. */
4960 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4961 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4962 if (S_IS_EXTERNAL (sym
))
4963 symbol_get_tc (sym
)->class = XMC_RW
;
4965 symbol_get_tc (sym
)->class = XMC_BS
;
4967 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4969 /* This is an absolute symbol. The csect will be created by
4970 ppc_adjust_symtab. */
4972 a
->x_csect
.x_smtyp
= XTY_LD
;
4973 if (symbol_get_tc (sym
)->class == -1)
4974 symbol_get_tc (sym
)->class = XMC_XO
;
4976 else if (! S_IS_DEFINED (sym
))
4978 /* This is an external symbol. */
4979 a
->x_csect
.x_scnlen
.l
= 0;
4980 a
->x_csect
.x_smtyp
= XTY_ER
;
4982 else if (symbol_get_tc (sym
)->class == XMC_TC
)
4986 /* This is a TOC definition. x_scnlen is the size of the
4988 next
= symbol_next (sym
);
4989 while (symbol_get_tc (next
)->class == XMC_TC0
)
4990 next
= symbol_next (next
);
4991 if (next
== (symbolS
*) NULL
4992 || symbol_get_tc (next
)->class != XMC_TC
)
4994 if (ppc_after_toc_frag
== (fragS
*) NULL
)
4995 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4997 - S_GET_VALUE (sym
));
4999 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5000 - S_GET_VALUE (sym
));
5004 resolve_symbol_value (next
);
5005 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5006 - S_GET_VALUE (sym
));
5008 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5014 /* This is a normal symbol definition. x_scnlen is the
5015 symbol index of the containing csect. */
5016 if (S_GET_SEGMENT (sym
) == text_section
)
5017 csect
= ppc_text_csects
;
5018 else if (S_GET_SEGMENT (sym
) == data_section
)
5019 csect
= ppc_data_csects
;
5023 /* Skip the initial dummy symbol. */
5024 csect
= symbol_get_tc (csect
)->next
;
5026 if (csect
== (symbolS
*) NULL
)
5028 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5029 a
->x_csect
.x_scnlen
.l
= 0;
5033 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5035 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5036 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5037 > S_GET_VALUE (sym
))
5039 csect
= symbol_get_tc (csect
)->next
;
5042 a
->x_csect
.x_scnlen
.p
=
5043 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5044 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5047 a
->x_csect
.x_smtyp
= XTY_LD
;
5050 a
->x_csect
.x_parmhash
= 0;
5051 a
->x_csect
.x_snhash
= 0;
5052 if (symbol_get_tc (sym
)->class == -1)
5053 a
->x_csect
.x_smclas
= XMC_PR
;
5055 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5056 a
->x_csect
.x_stab
= 0;
5057 a
->x_csect
.x_snstab
= 0;
5059 /* Don't let the COFF backend resort these symbols. */
5060 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5062 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5064 /* We want the value to be the symbol index of the referenced
5065 csect symbol. BFD will do that for us if we set the right
5067 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5068 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5070 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5071 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5073 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5078 /* The value is the offset from the enclosing csect. */
5079 block
= symbol_get_tc (sym
)->within
;
5080 csect
= symbol_get_tc (block
)->within
;
5081 resolve_symbol_value (csect
);
5082 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5084 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5085 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5087 /* We want the value to be a file offset into the line numbers.
5088 BFD will do that for us if we set the right flags. We have
5089 already set the value correctly. */
5090 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5096 /* Adjust the symbol table. This creates csect symbols for all
5097 absolute symbols. */
5100 ppc_adjust_symtab ()
5107 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5111 union internal_auxent
*a
;
5113 if (S_GET_SEGMENT (sym
) != absolute_section
)
5116 csect
= symbol_create (".abs[XO]", absolute_section
,
5117 S_GET_VALUE (sym
), &zero_address_frag
);
5118 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5119 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5120 i
= S_GET_NUMBER_AUXILIARY (csect
);
5121 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5122 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5123 a
->x_csect
.x_scnlen
.l
= 0;
5124 a
->x_csect
.x_smtyp
= XTY_SD
;
5125 a
->x_csect
.x_parmhash
= 0;
5126 a
->x_csect
.x_snhash
= 0;
5127 a
->x_csect
.x_smclas
= XMC_XO
;
5128 a
->x_csect
.x_stab
= 0;
5129 a
->x_csect
.x_snstab
= 0;
5131 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5133 i
= S_GET_NUMBER_AUXILIARY (sym
);
5134 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5135 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5136 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5139 ppc_saw_abs
= FALSE
;
5142 /* Set the VMA for a section. This is called on all the sections in
5146 ppc_frob_section (sec
)
5149 static bfd_vma vma
= 0;
5151 vma
= md_section_align (sec
, vma
);
5152 bfd_set_section_vma (stdoutput
, sec
, vma
);
5153 vma
+= bfd_section_size (stdoutput
, sec
);
5156 #endif /* OBJ_XCOFF */
5158 /* Turn a string in input_line_pointer into a floating point constant
5159 of type TYPE, and store the appropriate bytes in *LITP. The number
5160 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5161 returned, or NULL on OK. */
5164 md_atof (type
, litp
, sizep
)
5170 LITTLENUM_TYPE words
[4];
5186 return _("bad call to md_atof");
5189 t
= atof_ieee (input_line_pointer
, type
, words
);
5191 input_line_pointer
= t
;
5195 if (target_big_endian
)
5197 for (i
= 0; i
< prec
; i
++)
5199 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5205 for (i
= prec
- 1; i
>= 0; i
--)
5207 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5215 /* Write a value out to the object file, using the appropriate
5219 md_number_to_chars (buf
, val
, n
)
5224 if (target_big_endian
)
5225 number_to_chars_bigendian (buf
, val
, n
);
5227 number_to_chars_littleendian (buf
, val
, n
);
5230 /* Align a section (I don't know why this is machine dependent). */
5233 md_section_align (seg
, addr
)
5237 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5239 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5242 /* We don't have any form of relaxing. */
5245 md_estimate_size_before_relax (fragp
, seg
)
5246 fragS
*fragp ATTRIBUTE_UNUSED
;
5247 asection
*seg ATTRIBUTE_UNUSED
;
5253 /* Convert a machine dependent frag. We never generate these. */
5256 md_convert_frag (abfd
, sec
, fragp
)
5257 bfd
*abfd ATTRIBUTE_UNUSED
;
5258 asection
*sec ATTRIBUTE_UNUSED
;
5259 fragS
*fragp ATTRIBUTE_UNUSED
;
5264 /* We have no need to default values of symbols. */
5267 md_undefined_symbol (name
)
5268 char *name ATTRIBUTE_UNUSED
;
5273 /* Functions concerning relocs. */
5275 /* The location from which a PC relative jump should be calculated,
5276 given a PC relative reloc. */
5279 md_pcrel_from_section (fixp
, sec
)
5281 segT sec ATTRIBUTE_UNUSED
;
5283 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5288 /* This is called to see whether a fixup should be adjusted to use a
5289 section symbol. We take the opportunity to change a fixup against
5290 a symbol in the TOC subsegment into a reloc against the
5291 corresponding .tc symbol. */
5294 ppc_fix_adjustable (fix
)
5297 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5298 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5299 TC_SYMFIELD_TYPE
*tc
;
5301 if (symseg
== absolute_section
)
5304 if (ppc_toc_csect
!= (symbolS
*) NULL
5305 && fix
->fx_addsy
!= ppc_toc_csect
5306 && symseg
== data_section
5307 && val
>= ppc_toc_frag
->fr_address
5308 && (ppc_after_toc_frag
== (fragS
*) NULL
5309 || val
< ppc_after_toc_frag
->fr_address
))
5313 for (sy
= symbol_next (ppc_toc_csect
);
5314 sy
!= (symbolS
*) NULL
;
5315 sy
= symbol_next (sy
))
5317 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5319 if (sy_tc
->class == XMC_TC0
)
5321 if (sy_tc
->class != XMC_TC
)
5323 if (val
== resolve_symbol_value (sy
))
5326 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5331 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5332 _("symbol in .toc does not match any .tc"));
5335 /* Possibly adjust the reloc to be against the csect. */
5336 tc
= symbol_get_tc (fix
->fx_addsy
);
5338 && tc
->class != XMC_TC0
5339 && tc
->class != XMC_TC
5340 && symseg
!= bss_section
5341 /* Don't adjust if this is a reloc in the toc section. */
5342 && (symseg
!= data_section
5343 || ppc_toc_csect
== NULL
5344 || val
< ppc_toc_frag
->fr_address
5345 || (ppc_after_toc_frag
!= NULL
5346 && val
>= ppc_after_toc_frag
->fr_address
)))
5349 symbolS
*next_csect
;
5351 if (symseg
== text_section
)
5352 csect
= ppc_text_csects
;
5353 else if (symseg
== data_section
)
5354 csect
= ppc_data_csects
;
5358 /* Skip the initial dummy symbol. */
5359 csect
= symbol_get_tc (csect
)->next
;
5361 if (csect
!= (symbolS
*) NULL
)
5363 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5364 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5366 /* If the csect address equals the symbol value, then we
5367 have to look through the full symbol table to see
5368 whether this is the csect we want. Note that we will
5369 only get here if the csect has zero length. */
5370 if (symbol_get_frag (csect
)->fr_address
== val
5371 && S_GET_VALUE (csect
) == val
)
5375 for (scan
= symbol_next (csect
);
5377 scan
= symbol_next (scan
))
5379 if (symbol_get_tc (scan
)->subseg
!= 0)
5381 if (scan
== fix
->fx_addsy
)
5385 /* If we found the symbol before the next csect
5386 symbol, then this is the csect we want. */
5387 if (scan
== fix
->fx_addsy
)
5394 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5395 fix
->fx_addsy
= csect
;
5400 /* Adjust a reloc against a .lcomm symbol to be against the base
5402 if (symseg
== bss_section
5403 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5405 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5407 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5414 /* A reloc from one csect to another must be kept. The assembler
5415 will, of course, keep relocs between sections, and it will keep
5416 absolute relocs, but we need to force it to keep PC relative relocs
5417 between two csects in the same section. */
5420 ppc_force_relocation (fix
)
5423 /* At this point fix->fx_addsy should already have been converted to
5424 a csect symbol. If the csect does not include the fragment, then
5425 we need to force the relocation. */
5427 && fix
->fx_addsy
!= NULL
5428 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5429 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5430 > fix
->fx_frag
->fr_address
)
5431 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5432 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5433 <= fix
->fx_frag
->fr_address
))))
5436 return generic_force_reloc (fix
);
5439 #endif /* OBJ_XCOFF */
5442 /* If this function returns non-zero, it guarantees that a relocation
5443 will be emitted for a fixup. */
5446 ppc_force_relocation (fix
)
5449 /* Branch prediction relocations must force a relocation, as must
5450 the vtable description relocs. */
5451 switch (fix
->fx_r_type
)
5453 case BFD_RELOC_PPC_B16_BRTAKEN
:
5454 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5455 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5456 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5457 case BFD_RELOC_PPC64_TOC
:
5463 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5464 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5467 return generic_force_reloc (fix
);
5471 ppc_fix_adjustable (fix
)
5474 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5475 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5476 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5477 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5478 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5479 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5480 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5481 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5482 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5484 || (fix
->fx_subsy
!= NULL
5485 && (S_GET_SEGMENT (fix
->fx_subsy
)
5486 == S_GET_SEGMENT (fix
->fx_addsy
)))
5487 || S_IS_LOCAL (fix
->fx_addsy
)));
5491 /* Apply a fixup to the object code. This is called for all the
5492 fixups we generated by the call to fix_new_exp, above. In the call
5493 above we used a reloc code which was the largest legal reloc code
5494 plus the operand index. Here we undo that to recover the operand
5495 index. At this point all symbol values should be fully resolved,
5496 and we attempt to completely resolve the reloc. If we can not do
5497 that, we determine the correct reloc code and put it back in the
5501 md_apply_fix3 (fixP
, valP
, seg
)
5504 segT seg ATTRIBUTE_UNUSED
;
5506 valueT value
= * valP
;
5509 if (fixP
->fx_addsy
!= NULL
)
5511 /* Hack around bfd_install_relocation brain damage. */
5513 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5518 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5519 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5520 doing this relocation the code in write.c is going to call
5521 bfd_install_relocation, which is also going to use the symbol
5522 value. That means that if the reloc is fully resolved we want to
5523 use *valP since bfd_install_relocation is not being used.
5524 However, if the reloc is not fully resolved we do not want to use
5525 *valP, and must use fx_offset instead. However, if the reloc
5526 is PC relative, we do want to use *valP since it includes the
5527 result of md_pcrel_from. This is confusing. */
5528 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5531 else if (fixP
->fx_pcrel
)
5535 value
= fixP
->fx_offset
;
5538 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5540 /* We can't actually support subtracting a symbol. */
5541 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5544 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5547 const struct powerpc_operand
*operand
;
5551 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5553 operand
= &powerpc_operands
[opindex
];
5556 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5557 does not generate a reloc. It uses the offset of `sym' within its
5558 csect. Other usages, such as `.long sym', generate relocs. This
5559 is the documented behaviour of non-TOC symbols. */
5560 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5561 && operand
->bits
== 16
5562 && operand
->shift
== 0
5563 && (operand
->insert
== NULL
|| ppc_obj64
)
5564 && fixP
->fx_addsy
!= NULL
5565 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5566 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5567 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5568 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5570 value
= fixP
->fx_offset
;
5575 /* Fetch the instruction, insert the fully resolved operand
5576 value, and stuff the instruction back again. */
5577 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5578 if (target_big_endian
)
5579 insn
= bfd_getb32 ((unsigned char *) where
);
5581 insn
= bfd_getl32 ((unsigned char *) where
);
5582 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5583 fixP
->fx_file
, fixP
->fx_line
);
5584 if (target_big_endian
)
5585 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5587 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5590 /* Nothing else to do here. */
5593 assert (fixP
->fx_addsy
!= NULL
);
5595 /* Determine a BFD reloc value based on the operand information.
5596 We are only prepared to turn a few of the operands into
5598 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5599 && operand
->bits
== 26
5600 && operand
->shift
== 0)
5601 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5602 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5603 && operand
->bits
== 16
5604 && operand
->shift
== 0)
5606 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5609 if (target_big_endian
)
5610 fixP
->fx_where
+= 2;
5613 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5614 && operand
->bits
== 26
5615 && operand
->shift
== 0)
5616 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5617 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5618 && operand
->bits
== 16
5619 && operand
->shift
== 0)
5621 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5624 if (target_big_endian
)
5625 fixP
->fx_where
+= 2;
5628 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5629 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5630 && operand
->bits
== 16
5631 && operand
->shift
== 0)
5633 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5635 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5638 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5639 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5644 fixP
->fx_r_type
= BFD_RELOC_16
;
5647 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5648 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5652 if (target_big_endian
)
5653 fixP
->fx_where
+= 2;
5655 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5661 /* Use expr_symbol_where to see if this is an expression
5663 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5664 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5665 _("unresolved expression that must be resolved"));
5667 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5668 _("unsupported relocation against %s"),
5669 S_GET_NAME (fixP
->fx_addsy
));
5677 ppc_elf_validate_fix (fixP
, seg
);
5679 switch (fixP
->fx_r_type
)
5681 case BFD_RELOC_CTOR
:
5688 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5692 case BFD_RELOC_32_PCREL
:
5693 case BFD_RELOC_PPC_EMB_NADDR32
:
5694 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5701 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5704 case BFD_RELOC_64_PCREL
:
5705 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5709 case BFD_RELOC_LO16
:
5711 case BFD_RELOC_GPREL16
:
5712 case BFD_RELOC_16_GOT_PCREL
:
5713 case BFD_RELOC_16_GOTOFF
:
5714 case BFD_RELOC_LO16_GOTOFF
:
5715 case BFD_RELOC_HI16_GOTOFF
:
5716 case BFD_RELOC_HI16_S_GOTOFF
:
5717 case BFD_RELOC_16_BASEREL
:
5718 case BFD_RELOC_LO16_BASEREL
:
5719 case BFD_RELOC_HI16_BASEREL
:
5720 case BFD_RELOC_HI16_S_BASEREL
:
5721 case BFD_RELOC_PPC_EMB_NADDR16
:
5722 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5723 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5724 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5725 case BFD_RELOC_PPC_EMB_SDAI16
:
5726 case BFD_RELOC_PPC_EMB_SDA2REL
:
5727 case BFD_RELOC_PPC_EMB_SDA2I16
:
5728 case BFD_RELOC_PPC_EMB_RELSEC16
:
5729 case BFD_RELOC_PPC_EMB_RELST_LO
:
5730 case BFD_RELOC_PPC_EMB_RELST_HI
:
5731 case BFD_RELOC_PPC_EMB_RELST_HA
:
5732 case BFD_RELOC_PPC_EMB_RELSDA
:
5733 case BFD_RELOC_PPC_TOC16
:
5735 case BFD_RELOC_PPC64_TOC16_LO
:
5736 case BFD_RELOC_PPC64_TOC16_HI
:
5737 case BFD_RELOC_PPC64_TOC16_HA
:
5741 if (fixP
->fx_addsy
!= NULL
)
5742 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5743 _("cannot emit PC relative %s relocation against %s"),
5744 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5745 S_GET_NAME (fixP
->fx_addsy
));
5747 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5748 _("cannot emit PC relative %s relocation"),
5749 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5752 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5756 /* This case happens when you write, for example,
5758 where L1 and L2 are defined later. */
5759 case BFD_RELOC_HI16
:
5762 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5766 case BFD_RELOC_HI16_S
:
5769 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5774 case BFD_RELOC_PPC64_HIGHER
:
5777 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5778 PPC_HIGHER (value
), 2);
5781 case BFD_RELOC_PPC64_HIGHER_S
:
5784 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5785 PPC_HIGHERA (value
), 2);
5788 case BFD_RELOC_PPC64_HIGHEST
:
5791 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5792 PPC_HIGHEST (value
), 2);
5795 case BFD_RELOC_PPC64_HIGHEST_S
:
5798 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5799 PPC_HIGHESTA (value
), 2);
5802 case BFD_RELOC_PPC64_ADDR16_DS
:
5803 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5804 case BFD_RELOC_PPC64_GOT16_DS
:
5805 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5806 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5807 case BFD_RELOC_PPC64_SECTOFF_DS
:
5808 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5809 case BFD_RELOC_PPC64_TOC16_DS
:
5810 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5811 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5812 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5816 unsigned char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5817 unsigned long val
, mask
;
5819 if (target_big_endian
)
5820 val
= bfd_getb32 (where
- 2);
5822 val
= bfd_getl32 (where
);
5824 /* lq insns reserve the four lsbs. */
5825 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5826 && (val
& (0x3f << 26)) == (56u << 26))
5828 val
|= value
& mask
;
5829 if (target_big_endian
)
5830 bfd_putb16 ((bfd_vma
) val
, where
);
5832 bfd_putl16 ((bfd_vma
) val
, where
);
5836 case BFD_RELOC_PPC_B16_BRTAKEN
:
5837 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5838 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5839 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5842 case BFD_RELOC_PPC_TLS
:
5843 case BFD_RELOC_PPC_DTPMOD
:
5844 case BFD_RELOC_PPC_TPREL16
:
5845 case BFD_RELOC_PPC_TPREL16_LO
:
5846 case BFD_RELOC_PPC_TPREL16_HI
:
5847 case BFD_RELOC_PPC_TPREL16_HA
:
5848 case BFD_RELOC_PPC_TPREL
:
5849 case BFD_RELOC_PPC_DTPREL16
:
5850 case BFD_RELOC_PPC_DTPREL16_LO
:
5851 case BFD_RELOC_PPC_DTPREL16_HI
:
5852 case BFD_RELOC_PPC_DTPREL16_HA
:
5853 case BFD_RELOC_PPC_DTPREL
:
5854 case BFD_RELOC_PPC_GOT_TLSGD16
:
5855 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5856 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5857 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5858 case BFD_RELOC_PPC_GOT_TLSLD16
:
5859 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5860 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5861 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5862 case BFD_RELOC_PPC_GOT_TPREL16
:
5863 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5864 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5865 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5866 case BFD_RELOC_PPC_GOT_DTPREL16
:
5867 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5868 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5869 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5870 case BFD_RELOC_PPC64_TPREL16_DS
:
5871 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5872 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5873 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5874 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5875 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5876 case BFD_RELOC_PPC64_DTPREL16_DS
:
5877 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5878 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5879 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5880 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5881 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5884 /* Because SDA21 modifies the register field, the size is set to 4
5885 bytes, rather than 2, so offset it here appropriately. */
5886 case BFD_RELOC_PPC_EMB_SDA21
:
5890 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5891 + ((target_big_endian
) ? 2 : 0),
5898 /* This can occur if there is a bug in the input assembler, eg:
5899 ".byte <undefined_symbol> - ." */
5901 as_bad (_("Unable to handle reference to symbol %s"),
5902 S_GET_NAME (fixP
->fx_addsy
));
5904 as_bad (_("Unable to resolve expression"));
5908 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5912 case BFD_RELOC_24_PLT_PCREL
:
5913 case BFD_RELOC_PPC_LOCAL24PC
:
5914 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5922 /* Fetch the instruction, insert the fully resolved operand
5923 value, and stuff the instruction back again. */
5924 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5925 if (target_big_endian
)
5926 insn
= bfd_getb32 ((unsigned char *) where
);
5928 insn
= bfd_getl32 ((unsigned char *) where
);
5929 if ((value
& 3) != 0)
5930 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5931 _("must branch to an address a multiple of 4"));
5932 if ((offsetT
) value
< -0x40000000
5933 || (offsetT
) value
>= 0x40000000)
5934 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5935 _("@local or @plt branch destination is too far away, %ld bytes"),
5937 insn
= insn
| (value
& 0x03fffffc);
5938 if (target_big_endian
)
5939 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5941 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5945 case BFD_RELOC_VTABLE_INHERIT
:
5948 && !S_IS_DEFINED (fixP
->fx_addsy
)
5949 && !S_IS_WEAK (fixP
->fx_addsy
))
5950 S_SET_WEAK (fixP
->fx_addsy
);
5953 case BFD_RELOC_VTABLE_ENTRY
:
5958 /* Generated by reference to `sym@tocbase'. The sym is
5959 ignored by the linker. */
5960 case BFD_RELOC_PPC64_TOC
:
5966 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
5973 fixP
->fx_addnumber
= value
;
5975 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
5976 fixP
->fx_addnumber
= 0;
5980 fixP
->fx_addnumber
= 0;
5982 /* We want to use the offset within the data segment of the
5983 symbol, not the actual VMA of the symbol. */
5984 fixP
->fx_addnumber
=
5985 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
5991 /* Generate a reloc for a fixup. */
5994 tc_gen_reloc (seg
, fixp
)
5995 asection
*seg ATTRIBUTE_UNUSED
;
6000 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6002 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6003 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6004 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6005 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6006 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6008 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6009 _("reloc %d not supported by object file format"),
6010 (int) fixp
->fx_r_type
);
6013 reloc
->addend
= fixp
->fx_addnumber
;
6019 ppc_cfi_frame_initial_instructions ()
6021 cfi_add_CFA_def_cfa (1, 0);
6025 tc_ppc_regname_to_dw2regnum (const char *regname
)
6027 unsigned int regnum
= -1;
6031 static struct { char *name
; int dw2regnum
; } regnames
[] =
6033 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6034 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6035 { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6036 { "spe_acc", 111 }, { "spefscr", 112 }
6039 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6040 if (strcmp (regnames
[i
].name
, regname
) == 0)
6041 return regnames
[i
].dw2regnum
;
6043 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6045 p
= regname
+ 1 + (regname
[1] == '.');
6046 regnum
= strtoul (p
, &q
, 10);
6047 if (p
== q
|| *q
|| regnum
>= 32)
6049 if (regname
[0] == 'f')
6051 else if (regname
[0] == 'v')
6054 else if (regname
[0] == 'c' && regname
[1] == 'r')
6056 p
= regname
+ 2 + (regname
[2] == '.');
6057 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6059 regnum
= p
[0] - '0' + 68;