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, 2005 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, 51 Franklin Street - Fifth Floor, 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
, "e300") == 0)
862 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
864 else if (strcmp (arg
, "altivec") == 0)
867 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
869 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
871 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
873 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
874 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
875 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
878 else if (strcmp (arg
, "spe") == 0)
881 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
883 ppc_cpu
|= PPC_OPCODE_SPE
;
885 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
887 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
889 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
891 else if (strcmp (arg
, "ppc64bridge") == 0)
893 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
894 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
896 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
897 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
899 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
901 /* -mbooke64 means enable 64-bit BookE support. */
902 else if (strcmp (arg
, "booke64") == 0)
904 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
905 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
907 else if (strcmp (arg
, "power4") == 0)
909 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
910 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
912 else if (strcmp (arg
, "power5") == 0)
914 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
916 | PPC_OPCODE_POWER5
);
918 /* -mcom means assemble for the common intersection between Power
919 and PowerPC. At present, we just allow the union, rather
920 than the intersection. */
921 else if (strcmp (arg
, "com") == 0)
922 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
923 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
924 else if (strcmp (arg
, "any") == 0)
925 ppc_cpu
|= PPC_OPCODE_ANY
;
933 md_parse_option (c
, arg
)
940 /* -u means that any undefined symbols should be treated as
941 external, which is the default for gas anyhow. */
946 /* Solaris as takes -le (presumably for little endian). For completeness
947 sake, recognize -be also. */
948 if (strcmp (arg
, "e") == 0)
950 target_big_endian
= 0;
951 set_target_endian
= 1;
959 if (strcmp (arg
, "e") == 0)
961 target_big_endian
= 1;
962 set_target_endian
= 1;
970 /* Recognize -K PIC. */
971 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
974 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
982 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
984 if (strcmp (arg
, "64") == 0)
989 as_fatal (_("%s unsupported"), "-a64");
992 else if (strcmp (arg
, "32") == 0)
1002 else if (strcmp (arg
, "regnames") == 0)
1005 else if (strcmp (arg
, "no-regnames") == 0)
1006 reg_names_p
= FALSE
;
1009 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1010 that require relocation. */
1011 else if (strcmp (arg
, "relocatable") == 0)
1013 shlib
= SHLIB_MRELOCATABLE
;
1014 ppc_flags
|= EF_PPC_RELOCATABLE
;
1017 else if (strcmp (arg
, "relocatable-lib") == 0)
1019 shlib
= SHLIB_MRELOCATABLE
;
1020 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1023 /* -memb, set embedded bit. */
1024 else if (strcmp (arg
, "emb") == 0)
1025 ppc_flags
|= EF_PPC_EMB
;
1027 /* -mlittle/-mbig set the endianess. */
1028 else if (strcmp (arg
, "little") == 0
1029 || strcmp (arg
, "little-endian") == 0)
1031 target_big_endian
= 0;
1032 set_target_endian
= 1;
1035 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1037 target_big_endian
= 1;
1038 set_target_endian
= 1;
1041 else if (strcmp (arg
, "solaris") == 0)
1044 ppc_comment_chars
= ppc_solaris_comment_chars
;
1047 else if (strcmp (arg
, "no-solaris") == 0)
1050 ppc_comment_chars
= ppc_eabi_comment_chars
;
1055 as_bad (_("invalid switch -m%s"), arg
);
1061 /* -V: SVR4 argument to print version ID. */
1063 print_version_id ();
1066 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1067 should be emitted or not. FIXME: Not implemented. */
1071 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1072 rather than .stabs.excl, which is ignored by the linker.
1073 FIXME: Not implemented. */
1089 md_show_usage (stream
)
1092 fprintf (stream
, _("\
1094 -a32 generate ELF32/XCOFF32\n\
1095 -a64 generate ELF64/XCOFF64\n\
1097 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1098 -mpwr generate code for POWER (RIOS1)\n\
1099 -m601 generate code for PowerPC 601\n\
1100 -mppc, -mppc32, -m603, -m604\n\
1101 generate code for PowerPC 603/604\n\
1102 -m403, -m405 generate code for PowerPC 403/405\n\
1103 -m440 generate code for PowerPC 440\n\
1104 -m7400, -m7410, -m7450, -m7455\n\
1105 generate code For PowerPC 7400/7410/7450/7455\n"));
1106 fprintf (stream
, _("\
1107 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1108 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1109 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1110 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1111 -mpower4 generate code for Power4 architecture\n\
1112 -mpower5 generate code for Power5 architecture\n\
1113 -mcom generate code Power/PowerPC common instructions\n\
1114 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1115 fprintf (stream
, _("\
1116 -maltivec generate code for AltiVec\n\
1117 -me300 generate code for PowerPC e300 family\n\
1118 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1119 -mspe generate code for Motorola SPE instructions\n\
1120 -mregnames Allow symbolic names for registers\n\
1121 -mno-regnames Do not allow symbolic names for registers\n"));
1123 fprintf (stream
, _("\
1124 -mrelocatable support for GCC's -mrelocatble option\n\
1125 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1126 -memb set PPC_EMB bit in ELF flags\n\
1127 -mlittle, -mlittle-endian, -l, -le\n\
1128 generate code for a little endian machine\n\
1129 -mbig, -mbig-endian, -b, -be\n\
1130 generate code for a big endian machine\n\
1131 -msolaris generate code for Solaris\n\
1132 -mno-solaris do not generate code for Solaris\n\
1133 -V print assembler version number\n\
1134 -Qy, -Qn ignored\n"));
1138 /* Set ppc_cpu if it is not already set. */
1143 const char *default_os
= TARGET_OS
;
1144 const char *default_cpu
= TARGET_CPU
;
1146 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1149 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1150 else if (strncmp (default_os
, "aix", 3) == 0
1151 && default_os
[3] >= '4' && default_os
[3] <= '9')
1152 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1153 else if (strncmp (default_os
, "aix3", 4) == 0)
1154 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1155 else if (strcmp (default_cpu
, "rs6000") == 0)
1156 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1157 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1159 if (default_cpu
[7] == '6' && default_cpu
[8] == '4')
1160 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1162 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1165 as_fatal (_("Unknown default cpu = %s, os = %s"),
1166 default_cpu
, default_os
);
1170 /* Figure out the BFD architecture to use. This function and ppc_mach
1171 are called well before md_begin, when the output file is opened. */
1173 enum bfd_architecture
1176 const char *default_cpu
= TARGET_CPU
;
1179 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1180 return bfd_arch_powerpc
;
1181 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1182 return bfd_arch_rs6000
;
1183 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1185 if (strcmp (default_cpu
, "rs6000") == 0)
1186 return bfd_arch_rs6000
;
1187 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1188 return bfd_arch_powerpc
;
1191 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1192 return bfd_arch_unknown
;
1199 return bfd_mach_ppc64
;
1200 else if (ppc_arch () == bfd_arch_rs6000
)
1201 return bfd_mach_rs6k
;
1203 return bfd_mach_ppc
;
1207 ppc_target_format ()
1211 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1213 return "xcoff-powermac";
1216 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1218 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1224 return "elf32-powerpc-vxworks";
1226 return (target_big_endian
1227 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1228 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1233 /* Insert opcodes and macros into hash tables. Called at startup and
1237 ppc_setup_opcodes (void)
1239 register const struct powerpc_opcode
*op
;
1240 const struct powerpc_opcode
*op_end
;
1241 const struct powerpc_macro
*macro
;
1242 const struct powerpc_macro
*macro_end
;
1243 bfd_boolean dup_insn
= FALSE
;
1245 if (ppc_hash
!= NULL
)
1246 hash_die (ppc_hash
);
1247 if (ppc_macro_hash
!= NULL
)
1248 hash_die (ppc_macro_hash
);
1250 /* Insert the opcodes into a hash table. */
1251 ppc_hash
= hash_new ();
1253 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1254 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1256 know ((op
->opcode
& op
->mask
) == op
->opcode
);
1258 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1259 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1260 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1261 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1262 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1263 /* Certain instructions (eg: extsw) do not exist in the
1264 32-bit BookE instruction set, but they do exist in the
1265 64-bit BookE instruction set, and other PPC instruction
1266 sets. Check to see if the opcode has the BOOKE64 flag set.
1267 If it does make sure that the target CPU is not the BookE32. */
1268 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1269 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1270 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1271 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1272 || ((op
->flags
& PPC_OPCODE_POWER4
)
1273 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1274 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1275 || ((op
->flags
& PPC_OPCODE_POWER5
)
1276 == (ppc_cpu
& PPC_OPCODE_POWER5
))))
1280 retval
= hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1283 /* Ignore Power duplicates for -m601. */
1284 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1285 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1288 as_bad (_("Internal assembler error for instruction %s"),
1295 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1296 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1297 hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1299 /* Insert the macros into a hash table. */
1300 ppc_macro_hash
= hash_new ();
1302 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1303 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1305 if ((macro
->flags
& ppc_cpu
) != 0)
1309 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (PTR
) macro
);
1310 if (retval
!= (const char *) NULL
)
1312 as_bad (_("Internal assembler error for macro %s"), macro
->name
);
1322 /* This function is called when the assembler starts up. It is called
1323 after the options have been parsed and the output file has been
1331 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1334 /* Set the ELF flags if desired. */
1335 if (ppc_flags
&& !msolaris
)
1336 bfd_set_private_flags (stdoutput
, ppc_flags
);
1339 ppc_setup_opcodes ();
1341 /* Tell the main code what the endianness is if it is not overridden
1343 if (!set_target_endian
)
1345 set_target_endian
= 1;
1346 target_big_endian
= PPC_BIG_ENDIAN
;
1350 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1352 /* Create dummy symbols to serve as initial csects. This forces the
1353 text csects to precede the data csects. These symbols will not
1355 ppc_text_csects
= symbol_make ("dummy\001");
1356 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1357 ppc_data_csects
= symbol_make ("dummy\001");
1358 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1363 ppc_current_section
= text_section
;
1364 ppc_previous_section
= 0;
1373 if (ppc_apuinfo_list
== NULL
)
1376 /* Ok, so write the section info out. We have this layout:
1380 0 8 length of "APUinfo\0"
1381 4 (n*4) number of APU's (4 bytes each)
1384 20 APU#1 first APU's info
1385 24 APU#2 second APU's info
1390 asection
*seg
= now_seg
;
1391 subsegT subseg
= now_subseg
;
1392 asection
*apuinfo_secp
= (asection
*) NULL
;
1395 /* Create the .PPC.EMB.apuinfo section. */
1396 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1397 bfd_set_section_flags (stdoutput
,
1399 SEC_HAS_CONTENTS
| SEC_READONLY
);
1402 md_number_to_chars (p
, (valueT
) 8, 4);
1405 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1408 md_number_to_chars (p
, (valueT
) 2, 4);
1411 strcpy (p
, "APUinfo");
1413 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1416 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1419 frag_align (2, 0, 0);
1421 /* We probably can't restore the current segment, for there likely
1424 subseg_set (seg
, subseg
);
1429 /* Insert an operand value into an instruction. */
1431 static unsigned long
1432 ppc_insert_operand (insn
, operand
, val
, file
, line
)
1434 const struct powerpc_operand
*operand
;
1439 if (operand
->bits
!= 32)
1444 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1446 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1447 max
= (1 << operand
->bits
) - 1;
1449 max
= (1 << (operand
->bits
- 1)) - 1;
1450 min
= - (1 << (operand
->bits
- 1));
1454 /* Some people write 32 bit hex constants with the sign
1455 extension done by hand. This shouldn't really be
1456 valid, but, to permit this code to assemble on a 64
1457 bit host, we sign extend the 32 bit value. */
1459 && (val
& (offsetT
) 0x80000000) != 0
1460 && (val
& (offsetT
) 0xffffffff) == val
)
1469 max
= (1 << operand
->bits
) - 1;
1473 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1478 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
1479 as_bad_value_out_of_range (_("operand"), test
, (offsetT
) min
, (offsetT
) max
, file
, line
);
1482 if (operand
->insert
)
1487 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1488 if (errmsg
!= (const char *) NULL
)
1489 as_bad_where (file
, line
, errmsg
);
1492 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1500 /* Parse @got, etc. and return the desired relocation. */
1501 static bfd_reloc_code_real_type
1502 ppc_elf_suffix (str_p
, exp_p
)
1508 unsigned int length
: 8;
1509 unsigned int valid32
: 1;
1510 unsigned int valid64
: 1;
1519 const struct map_bfd
*ptr
;
1521 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1522 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1523 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1525 static const struct map_bfd mapping
[] = {
1526 MAP ("l", BFD_RELOC_LO16
),
1527 MAP ("h", BFD_RELOC_HI16
),
1528 MAP ("ha", BFD_RELOC_HI16_S
),
1529 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1530 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1531 MAP ("got", BFD_RELOC_16_GOTOFF
),
1532 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1533 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1534 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1535 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1536 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1537 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1538 MAP ("copy", BFD_RELOC_PPC_COPY
),
1539 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1540 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1541 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1542 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1543 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1544 MAP ("tls", BFD_RELOC_PPC_TLS
),
1545 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1546 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1547 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1548 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1549 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1550 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1551 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1552 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1553 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1554 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1555 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1556 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1557 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1558 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1559 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1560 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1561 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1562 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1563 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1564 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1565 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1566 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1567 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1568 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1569 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1570 MAP32 ("fixup", BFD_RELOC_CTOR
),
1571 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1572 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1573 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1574 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1575 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1576 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1577 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1578 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1579 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1580 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1581 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1582 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1583 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1584 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1585 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1586 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1587 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1588 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1589 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1590 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1591 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1592 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1593 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1594 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1595 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1596 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1597 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1598 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1599 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1600 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1601 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1602 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1603 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1604 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1605 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1606 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1607 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1608 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1609 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1610 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1611 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1615 return BFD_RELOC_UNUSED
;
1617 for (ch
= *str
, str2
= ident
;
1618 (str2
< ident
+ sizeof (ident
) - 1
1619 && (ISALNUM (ch
) || ch
== '@'));
1622 *str2
++ = TOLOWER (ch
);
1629 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1630 if (ch
== ptr
->string
[0]
1631 && len
== ptr
->length
1632 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1633 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1635 int reloc
= ptr
->reloc
;
1638 if (exp_p
->X_add_number
!= 0
1639 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1640 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1641 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1642 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1643 as_warn (_("identifier+constant@got means identifier@got+constant"));
1645 /* Now check for identifier@suffix+constant. */
1646 if (*str
== '-' || *str
== '+')
1648 char *orig_line
= input_line_pointer
;
1649 expressionS new_exp
;
1651 input_line_pointer
= str
;
1652 expression (&new_exp
);
1653 if (new_exp
.X_op
== O_constant
)
1655 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1656 str
= input_line_pointer
;
1659 if (&input_line_pointer
!= str_p
)
1660 input_line_pointer
= orig_line
;
1664 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1665 && exp_p
->X_op
== O_symbol
1666 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1668 /* Change the symbol so that the dummy .TOC. symbol can be
1669 omitted from the object file. */
1670 exp_p
->X_add_symbol
= &abs_symbol
;
1673 return (bfd_reloc_code_real_type
) reloc
;
1676 return BFD_RELOC_UNUSED
;
1679 /* Like normal .long/.short/.word, except support @got, etc.
1680 Clobbers input_line_pointer, checks end-of-line. */
1682 ppc_elf_cons (nbytes
)
1683 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1686 bfd_reloc_code_real_type reloc
;
1688 if (is_it_end_of_statement ())
1690 demand_empty_rest_of_line ();
1697 if (exp
.X_op
== O_symbol
1698 && *input_line_pointer
== '@'
1699 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1700 &exp
)) != BFD_RELOC_UNUSED
)
1702 reloc_howto_type
*reloc_howto
;
1705 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1706 size
= bfd_get_reloc_size (reloc_howto
);
1710 as_bad (_("%s relocations do not fit in %d bytes\n"),
1711 reloc_howto
->name
, nbytes
);
1718 p
= frag_more (nbytes
);
1720 if (target_big_endian
)
1721 offset
= nbytes
- size
;
1722 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1727 emit_expr (&exp
, (unsigned int) nbytes
);
1729 while (*input_line_pointer
++ == ',');
1731 /* Put terminator back into stream. */
1732 input_line_pointer
--;
1733 demand_empty_rest_of_line ();
1736 /* Solaris pseduo op to change to the .rodata section. */
1741 char *save_line
= input_line_pointer
;
1742 static char section
[] = ".rodata\n";
1744 /* Just pretend this is .section .rodata */
1745 input_line_pointer
= section
;
1746 obj_elf_section (xxx
);
1748 input_line_pointer
= save_line
;
1751 /* Pseudo op to make file scope bss items. */
1754 int xxx ATTRIBUTE_UNUSED
;
1756 register char *name
;
1760 register symbolS
*symbolP
;
1767 name
= input_line_pointer
;
1768 c
= get_symbol_end ();
1770 /* just after name is now '\0'. */
1771 p
= input_line_pointer
;
1774 if (*input_line_pointer
!= ',')
1776 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1777 ignore_rest_of_line ();
1781 input_line_pointer
++; /* skip ',' */
1782 if ((size
= get_absolute_expression ()) < 0)
1784 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1785 ignore_rest_of_line ();
1789 /* The third argument to .lcomm is the alignment. */
1790 if (*input_line_pointer
!= ',')
1794 ++input_line_pointer
;
1795 align
= get_absolute_expression ();
1798 as_warn (_("ignoring bad alignment"));
1804 symbolP
= symbol_find_or_make (name
);
1807 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1809 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1810 S_GET_NAME (symbolP
));
1811 ignore_rest_of_line ();
1815 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1817 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1818 S_GET_NAME (symbolP
),
1819 (long) S_GET_VALUE (symbolP
),
1822 ignore_rest_of_line ();
1828 old_subsec
= now_subseg
;
1831 /* Convert to a power of 2 alignment. */
1832 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1835 as_bad (_("Common alignment not a power of 2"));
1836 ignore_rest_of_line ();
1843 record_alignment (bss_section
, align2
);
1844 subseg_set (bss_section
, 0);
1846 frag_align (align2
, 0, 0);
1847 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1848 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1849 symbol_set_frag (symbolP
, frag_now
);
1850 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1853 S_SET_SIZE (symbolP
, size
);
1854 S_SET_SEGMENT (symbolP
, bss_section
);
1855 subseg_set (old_sec
, old_subsec
);
1856 demand_empty_rest_of_line ();
1859 /* Validate any relocations emitted for -mrelocatable, possibly adding
1860 fixups for word relocations in writable segments, so we can adjust
1863 ppc_elf_validate_fix (fixp
, seg
)
1867 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1876 case SHLIB_MRELOCATABLE
:
1877 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1878 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1879 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1880 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1881 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1882 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1883 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1884 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1885 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1886 && (seg
->flags
& SEC_LOAD
) != 0
1887 && strcmp (segment_name (seg
), ".got2") != 0
1888 && strcmp (segment_name (seg
), ".dtors") != 0
1889 && strcmp (segment_name (seg
), ".ctors") != 0
1890 && strcmp (segment_name (seg
), ".fixup") != 0
1891 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1892 && strcmp (segment_name (seg
), ".eh_frame") != 0
1893 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1895 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1896 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1898 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1899 _("Relocation cannot be done when using -mrelocatable"));
1906 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1907 function descriptor sym if the corresponding code sym is used. */
1910 ppc_frob_file_before_adjust ()
1918 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1925 name
= S_GET_NAME (symp
);
1929 if (! S_IS_WEAK (symp
)
1930 || S_IS_DEFINED (symp
))
1933 len
= strlen (name
) + 1;
1934 dotname
= xmalloc (len
+ 1);
1936 memcpy (dotname
+ 1, name
, len
);
1937 dotsym
= symbol_find (dotname
);
1939 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1940 || symbol_used_in_reloc_p (dotsym
)))
1941 symbol_mark_used (symp
);
1945 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
1947 && bfd_section_size (stdoutput
, toc
) > 0x10000)
1948 as_warn (_("TOC section size exceeds 64k"));
1950 /* Don't emit .TOC. symbol. */
1951 symp
= symbol_find (".TOC.");
1953 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1955 #endif /* OBJ_ELF */
1960 * Summary of parse_toc_entry.
1962 * in: Input_line_pointer points to the '[' in one of:
1964 * [toc] [tocv] [toc32] [toc64]
1966 * Anything else is an error of one kind or another.
1969 * return value: success or failure
1970 * toc_kind: kind of toc reference
1971 * input_line_pointer:
1972 * success: first char after the ']'
1973 * failure: unchanged
1977 * [toc] - rv == success, toc_kind = default_toc
1978 * [tocv] - rv == success, toc_kind = data_in_toc
1979 * [toc32] - rv == success, toc_kind = must_be_32
1980 * [toc64] - rv == success, toc_kind = must_be_64
1984 enum toc_size_qualifier
1986 default_toc
, /* The toc cell constructed should be the system default size */
1987 data_in_toc
, /* This is a direct reference to a toc cell */
1988 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1989 must_be_64
/* The toc cell constructed must be 64 bits wide */
1993 parse_toc_entry (toc_kind
)
1994 enum toc_size_qualifier
*toc_kind
;
1999 enum toc_size_qualifier t
;
2001 /* Save the input_line_pointer. */
2002 start
= input_line_pointer
;
2004 /* Skip over the '[' , and whitespace. */
2005 ++input_line_pointer
;
2008 /* Find the spelling of the operand. */
2009 toc_spec
= input_line_pointer
;
2010 c
= get_symbol_end ();
2012 if (strcmp (toc_spec
, "toc") == 0)
2016 else if (strcmp (toc_spec
, "tocv") == 0)
2020 else if (strcmp (toc_spec
, "toc32") == 0)
2024 else if (strcmp (toc_spec
, "toc64") == 0)
2030 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2031 *input_line_pointer
= c
;
2032 input_line_pointer
= start
;
2036 /* Now find the ']'. */
2037 *input_line_pointer
= c
;
2039 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2040 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2044 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2045 input_line_pointer
= start
;
2056 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2058 ppc_apuinfo_section_add (apu
, version
)
2059 unsigned int apu
, version
;
2063 /* Check we don't already exist. */
2064 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2065 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2068 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2070 if (ppc_apuinfo_num_alloc
== 0)
2072 ppc_apuinfo_num_alloc
= 4;
2073 ppc_apuinfo_list
= (unsigned long *)
2074 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2078 ppc_apuinfo_num_alloc
+= 4;
2079 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2080 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2083 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2089 /* We need to keep a list of fixups. We can't simply generate them as
2090 we go, because that would require us to first create the frag, and
2091 that would screw up references to ``.''. */
2097 bfd_reloc_code_real_type reloc
;
2100 #define MAX_INSN_FIXUPS (5)
2102 /* This routine is called for each instruction to be assembled. */
2109 const struct powerpc_opcode
*opcode
;
2111 const unsigned char *opindex_ptr
;
2115 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2121 bfd_reloc_code_real_type reloc
;
2124 /* Get the opcode. */
2125 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2130 /* Look up the opcode in the hash table. */
2131 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2132 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2134 const struct powerpc_macro
*macro
;
2136 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2137 if (macro
== (const struct powerpc_macro
*) NULL
)
2138 as_bad (_("Unrecognized opcode: `%s'"), str
);
2140 ppc_macro (s
, macro
);
2145 insn
= opcode
->opcode
;
2148 while (ISSPACE (*str
))
2151 /* PowerPC operands are just expressions. The only real issue is
2152 that a few operand types are optional. All cases which might use
2153 an optional operand separate the operands only with commas (in some
2154 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2155 have optional operands). Most instructions with optional operands
2156 have only one. Those that have more than one optional operand can
2157 take either all their operands or none. So, before we start seriously
2158 parsing the operands, we check to see if we have optional operands,
2159 and if we do, we count the number of commas to see which operands
2160 have been omitted. */
2162 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2164 const struct powerpc_operand
*operand
;
2166 operand
= &powerpc_operands
[*opindex_ptr
];
2167 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2169 unsigned int opcount
;
2170 unsigned int num_operands_expected
;
2173 /* There is an optional operand. Count the number of
2174 commas in the input line. */
2181 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2188 /* Compute the number of expected operands.
2189 Do not count fake operands. */
2190 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2191 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2192 ++ num_operands_expected
;
2194 /* If there are fewer operands in the line then are called
2195 for by the instruction, we want to skip the optional
2197 if (opcount
< num_operands_expected
)
2204 /* Gather the operands. */
2208 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2210 const struct powerpc_operand
*operand
;
2216 if (next_opindex
== 0)
2217 operand
= &powerpc_operands
[*opindex_ptr
];
2220 operand
= &powerpc_operands
[next_opindex
];
2225 /* If this is a fake operand, then we do not expect anything
2227 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2229 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2230 if (errmsg
!= (const char *) NULL
)
2235 /* If this is an optional operand, and we are skipping it, just
2237 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2240 if (operand
->insert
)
2242 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2243 if (errmsg
!= (const char *) NULL
)
2246 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2247 next_opindex
= *opindex_ptr
+ 1;
2251 /* Gather the operand. */
2252 hold
= input_line_pointer
;
2253 input_line_pointer
= str
;
2256 if (*input_line_pointer
== '[')
2258 /* We are expecting something like the second argument here:
2260 * lwz r4,[toc].GS.0.static_int(rtoc)
2261 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2262 * The argument following the `]' must be a symbol name, and the
2263 * register must be the toc register: 'rtoc' or '2'
2265 * The effect is to 0 as the displacement field
2266 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2267 * the appropriate variation) reloc against it based on the symbol.
2268 * The linker will build the toc, and insert the resolved toc offset.
2271 * o The size of the toc entry is currently assumed to be
2272 * 32 bits. This should not be assumed to be a hard coded
2274 * o In an effort to cope with a change from 32 to 64 bits,
2275 * there are also toc entries that are specified to be
2276 * either 32 or 64 bits:
2277 * lwz r4,[toc32].GS.0.static_int(rtoc)
2278 * lwz r4,[toc64].GS.0.static_int(rtoc)
2279 * These demand toc entries of the specified size, and the
2280 * instruction probably requires it.
2284 enum toc_size_qualifier toc_kind
;
2285 bfd_reloc_code_real_type toc_reloc
;
2287 /* Go parse off the [tocXX] part. */
2288 valid_toc
= parse_toc_entry (&toc_kind
);
2292 /* Note: message has already been issued.
2293 FIXME: what sort of recovery should we do?
2294 demand_rest_of_line (); return; ? */
2297 /* Now get the symbol following the ']'. */
2303 /* In this case, we may not have seen the symbol yet,
2304 since it is allowed to appear on a .extern or .globl
2305 or just be a label in the .data section. */
2306 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2309 /* 1. The symbol must be defined and either in the toc
2310 section, or a global.
2311 2. The reloc generated must have the TOCDEFN flag set
2312 in upper bit mess of the reloc type.
2313 FIXME: It's a little confusing what the tocv
2314 qualifier can be used for. At the very least, I've
2315 seen three uses, only one of which I'm sure I can
2317 if (ex
.X_op
== O_symbol
)
2319 assert (ex
.X_add_symbol
!= NULL
);
2320 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2323 as_bad (_("[tocv] symbol is not a toc symbol"));
2327 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2330 /* FIXME: these next two specifically specify 32/64 bit
2331 toc entries. We don't support them today. Is this
2332 the right way to say that? */
2333 toc_reloc
= BFD_RELOC_UNUSED
;
2334 as_bad (_("Unimplemented toc32 expression modifier"));
2337 /* FIXME: see above. */
2338 toc_reloc
= BFD_RELOC_UNUSED
;
2339 as_bad (_("Unimplemented toc64 expression modifier"));
2343 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2349 /* We need to generate a fixup for this expression. */
2350 if (fc
>= MAX_INSN_FIXUPS
)
2351 as_fatal (_("too many fixups"));
2353 fixups
[fc
].reloc
= toc_reloc
;
2354 fixups
[fc
].exp
= ex
;
2355 fixups
[fc
].opindex
= *opindex_ptr
;
2358 /* Ok. We've set up the fixup for the instruction. Now make it
2359 look like the constant 0 was found here. */
2361 ex
.X_op
= O_constant
;
2362 ex
.X_add_number
= 0;
2363 ex
.X_add_symbol
= NULL
;
2364 ex
.X_op_symbol
= NULL
;
2370 if (! register_name (&ex
))
2372 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2379 str
= input_line_pointer
;
2380 input_line_pointer
= hold
;
2382 if (ex
.X_op
== O_illegal
)
2383 as_bad (_("illegal operand"));
2384 else if (ex
.X_op
== O_absent
)
2385 as_bad (_("missing operand"));
2386 else if (ex
.X_op
== O_register
)
2388 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2391 else if (ex
.X_op
== O_constant
)
2394 /* Allow @HA, @L, @H on constants. */
2395 char *orig_str
= str
;
2397 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2404 case BFD_RELOC_LO16
:
2405 /* X_unsigned is the default, so if the user has done
2406 something which cleared it, we always produce a
2408 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2409 ex
.X_add_number
&= 0xffff;
2411 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2414 case BFD_RELOC_HI16
:
2415 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2416 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2418 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2421 case BFD_RELOC_HI16_S
:
2422 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2423 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2425 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2428 case BFD_RELOC_PPC64_HIGHER
:
2429 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2430 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2432 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2435 case BFD_RELOC_PPC64_HIGHER_S
:
2436 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2437 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2439 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2442 case BFD_RELOC_PPC64_HIGHEST
:
2443 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2444 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2446 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2449 case BFD_RELOC_PPC64_HIGHEST_S
:
2450 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2451 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2453 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2456 #endif /* OBJ_ELF */
2457 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2461 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2463 /* Some TLS tweaks. */
2468 case BFD_RELOC_PPC_TLS
:
2469 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2472 /* We'll only use the 32 (or 64) bit form of these relocations
2473 in constants. Instructions get the 16 bit form. */
2474 case BFD_RELOC_PPC_DTPREL
:
2475 reloc
= BFD_RELOC_PPC_DTPREL16
;
2477 case BFD_RELOC_PPC_TPREL
:
2478 reloc
= BFD_RELOC_PPC_TPREL16
;
2482 /* For the absolute forms of branches, convert the PC
2483 relative form back into the absolute. */
2484 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2488 case BFD_RELOC_PPC_B26
:
2489 reloc
= BFD_RELOC_PPC_BA26
;
2491 case BFD_RELOC_PPC_B16
:
2492 reloc
= BFD_RELOC_PPC_BA16
;
2494 case BFD_RELOC_PPC_B16_BRTAKEN
:
2495 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2497 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2498 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2506 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2511 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2513 case BFD_RELOC_LO16
:
2514 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2516 case BFD_RELOC_16_GOTOFF
:
2517 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2519 case BFD_RELOC_LO16_GOTOFF
:
2520 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2522 case BFD_RELOC_LO16_PLTOFF
:
2523 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2525 case BFD_RELOC_16_BASEREL
:
2526 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2528 case BFD_RELOC_LO16_BASEREL
:
2529 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2531 case BFD_RELOC_PPC_TOC16
:
2532 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2534 case BFD_RELOC_PPC64_TOC16_LO
:
2535 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2537 case BFD_RELOC_PPC64_PLTGOT16
:
2538 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2540 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2541 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2543 case BFD_RELOC_PPC_DTPREL16
:
2544 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2546 case BFD_RELOC_PPC_DTPREL16_LO
:
2547 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2549 case BFD_RELOC_PPC_TPREL16
:
2550 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2552 case BFD_RELOC_PPC_TPREL16_LO
:
2553 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2555 case BFD_RELOC_PPC_GOT_DTPREL16
:
2556 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2557 case BFD_RELOC_PPC_GOT_TPREL16
:
2558 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2561 as_bad (_("unsupported relocation for DS offset field"));
2566 /* We need to generate a fixup for this expression. */
2567 if (fc
>= MAX_INSN_FIXUPS
)
2568 as_fatal (_("too many fixups"));
2569 fixups
[fc
].exp
= ex
;
2570 fixups
[fc
].opindex
= 0;
2571 fixups
[fc
].reloc
= reloc
;
2574 #endif /* OBJ_ELF */
2578 /* We need to generate a fixup for this expression. */
2579 if (fc
>= MAX_INSN_FIXUPS
)
2580 as_fatal (_("too many fixups"));
2581 fixups
[fc
].exp
= ex
;
2582 fixups
[fc
].opindex
= *opindex_ptr
;
2583 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2592 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2600 /* The call to expression should have advanced str past any
2603 && (endc
!= ',' || *str
!= '\0'))
2605 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2613 while (ISSPACE (*str
))
2617 as_bad (_("junk at end of line: `%s'"), str
);
2620 /* Do we need/want a APUinfo section? */
2621 if (ppc_cpu
& (PPC_OPCODE_SPE
2622 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2623 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2624 | PPC_OPCODE_RFMCI
))
2626 /* These are all version "1". */
2627 if (opcode
->flags
& PPC_OPCODE_SPE
)
2628 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2629 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2630 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2631 if (opcode
->flags
& PPC_OPCODE_EFS
)
2632 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2633 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2634 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2635 if (opcode
->flags
& PPC_OPCODE_PMR
)
2636 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2637 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2638 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2639 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2640 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2644 /* Write out the instruction. */
2646 addr_mod
= frag_now_fix () & 3;
2647 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2648 as_bad (_("instruction address is not a multiple of 4"));
2649 frag_now
->insn_addr
= addr_mod
;
2650 frag_now
->has_code
= 1;
2651 md_number_to_chars (f
, insn
, 4);
2654 dwarf2_emit_insn (4);
2657 /* Create any fixups. At this point we do not use a
2658 bfd_reloc_code_real_type, but instead just use the
2659 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2660 handle fixups for any operand type, although that is admittedly
2661 not a very exciting feature. We pick a BFD reloc type in
2663 for (i
= 0; i
< fc
; i
++)
2665 const struct powerpc_operand
*operand
;
2667 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2668 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2670 reloc_howto_type
*reloc_howto
;
2675 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2679 size
= bfd_get_reloc_size (reloc_howto
);
2680 offset
= target_big_endian
? (4 - size
) : 0;
2682 if (size
< 1 || size
> 4)
2685 fixP
= fix_new_exp (frag_now
,
2686 f
- frag_now
->fr_literal
+ offset
,
2689 reloc_howto
->pc_relative
,
2692 /* Turn off complaints that the addend is too large for things like
2694 switch (fixups
[i
].reloc
)
2696 case BFD_RELOC_16_GOTOFF
:
2697 case BFD_RELOC_PPC_TOC16
:
2698 case BFD_RELOC_LO16
:
2699 case BFD_RELOC_HI16
:
2700 case BFD_RELOC_HI16_S
:
2702 case BFD_RELOC_PPC64_HIGHER
:
2703 case BFD_RELOC_PPC64_HIGHER_S
:
2704 case BFD_RELOC_PPC64_HIGHEST
:
2705 case BFD_RELOC_PPC64_HIGHEST_S
:
2707 fixP
->fx_no_overflow
= 1;
2714 fix_new_exp (frag_now
,
2715 f
- frag_now
->fr_literal
,
2718 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2719 ((bfd_reloc_code_real_type
)
2720 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2724 /* Handle a macro. Gather all the operands, transform them as
2725 described by the macro, and call md_assemble recursively. All the
2726 operands are separated by commas; we don't accept parentheses
2727 around operands here. */
2730 ppc_macro (str
, macro
)
2732 const struct powerpc_macro
*macro
;
2743 /* Gather the users operands into the operands array. */
2748 if (count
>= sizeof operands
/ sizeof operands
[0])
2750 operands
[count
++] = s
;
2751 s
= strchr (s
, ',');
2752 if (s
== (char *) NULL
)
2757 if (count
!= macro
->operands
)
2759 as_bad (_("wrong number of operands"));
2763 /* Work out how large the string must be (the size is unbounded
2764 because it includes user input). */
2766 format
= macro
->format
;
2767 while (*format
!= '\0')
2776 arg
= strtol (format
+ 1, &send
, 10);
2777 know (send
!= format
&& arg
>= 0 && arg
< count
);
2778 len
+= strlen (operands
[arg
]);
2783 /* Put the string together. */
2784 complete
= s
= (char *) alloca (len
+ 1);
2785 format
= macro
->format
;
2786 while (*format
!= '\0')
2792 arg
= strtol (format
+ 1, &send
, 10);
2793 strcpy (s
, operands
[arg
]);
2800 /* Assemble the constructed instruction. */
2801 md_assemble (complete
);
2805 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2808 ppc_section_letter (letter
, ptr_msg
)
2815 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2820 ppc_section_word (str
, len
)
2824 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2831 ppc_section_type (str
, len
)
2835 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2842 ppc_section_flags (flags
, attr
, type
)
2847 if (type
== SHT_ORDERED
)
2848 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2850 if (attr
& SHF_EXCLUDE
)
2851 flags
|= SEC_EXCLUDE
;
2855 #endif /* OBJ_ELF */
2858 /* Pseudo-op handling. */
2860 /* The .byte pseudo-op. This is similar to the normal .byte
2861 pseudo-op, but it can also take a single ASCII string. */
2865 int ignore ATTRIBUTE_UNUSED
;
2867 if (*input_line_pointer
!= '\"')
2873 /* Gather characters. A real double quote is doubled. Unusual
2874 characters are not permitted. */
2875 ++input_line_pointer
;
2880 c
= *input_line_pointer
++;
2884 if (*input_line_pointer
!= '\"')
2886 ++input_line_pointer
;
2889 FRAG_APPEND_1_CHAR (c
);
2892 demand_empty_rest_of_line ();
2897 /* XCOFF specific pseudo-op handling. */
2899 /* This is set if we are creating a .stabx symbol, since we don't want
2900 to handle symbol suffixes for such symbols. */
2901 static bfd_boolean ppc_stab_symbol
;
2903 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2904 symbols in the .bss segment as though they were local common
2905 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2906 aligns .comm and .lcomm to 4 bytes. */
2912 asection
*current_seg
= now_seg
;
2913 subsegT current_subseg
= now_subseg
;
2919 symbolS
*lcomm_sym
= NULL
;
2923 name
= input_line_pointer
;
2924 endc
= get_symbol_end ();
2925 end_name
= input_line_pointer
;
2928 if (*input_line_pointer
!= ',')
2930 as_bad (_("missing size"));
2931 ignore_rest_of_line ();
2934 ++input_line_pointer
;
2936 size
= get_absolute_expression ();
2939 as_bad (_("negative size"));
2940 ignore_rest_of_line ();
2946 /* The third argument to .comm is the alignment. */
2947 if (*input_line_pointer
!= ',')
2951 ++input_line_pointer
;
2952 align
= get_absolute_expression ();
2955 as_warn (_("ignoring bad alignment"));
2970 /* The third argument to .lcomm appears to be the real local
2971 common symbol to create. References to the symbol named in
2972 the first argument are turned into references to the third
2974 if (*input_line_pointer
!= ',')
2976 as_bad (_("missing real symbol name"));
2977 ignore_rest_of_line ();
2980 ++input_line_pointer
;
2982 lcomm_name
= input_line_pointer
;
2983 lcomm_endc
= get_symbol_end ();
2985 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2987 *input_line_pointer
= lcomm_endc
;
2991 sym
= symbol_find_or_make (name
);
2994 if (S_IS_DEFINED (sym
)
2995 || S_GET_VALUE (sym
) != 0)
2997 as_bad (_("attempt to redefine symbol"));
2998 ignore_rest_of_line ();
3002 record_alignment (bss_section
, align
);
3005 || ! S_IS_DEFINED (lcomm_sym
))
3014 S_SET_EXTERNAL (sym
);
3018 symbol_get_tc (lcomm_sym
)->output
= 1;
3019 def_sym
= lcomm_sym
;
3023 subseg_set (bss_section
, 1);
3024 frag_align (align
, 0, 0);
3026 symbol_set_frag (def_sym
, frag_now
);
3027 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3028 def_size
, (char *) NULL
);
3030 S_SET_SEGMENT (def_sym
, bss_section
);
3031 symbol_get_tc (def_sym
)->align
= align
;
3035 /* Align the size of lcomm_sym. */
3036 symbol_get_frag (lcomm_sym
)->fr_offset
=
3037 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3038 &~ ((1 << align
) - 1));
3039 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3040 symbol_get_tc (lcomm_sym
)->align
= align
;
3045 /* Make sym an offset from lcomm_sym. */
3046 S_SET_SEGMENT (sym
, bss_section
);
3047 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3048 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3049 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3052 subseg_set (current_seg
, current_subseg
);
3054 demand_empty_rest_of_line ();
3057 /* The .csect pseudo-op. This switches us into a different
3058 subsegment. The first argument is a symbol whose value is the
3059 start of the .csect. In COFF, csect symbols get special aux
3060 entries defined by the x_csect field of union internal_auxent. The
3061 optional second argument is the alignment (the default is 2). */
3065 int ignore ATTRIBUTE_UNUSED
;
3072 name
= input_line_pointer
;
3073 endc
= get_symbol_end ();
3075 sym
= symbol_find_or_make (name
);
3077 *input_line_pointer
= endc
;
3079 if (S_GET_NAME (sym
)[0] == '\0')
3081 /* An unnamed csect is assumed to be [PR]. */
3082 symbol_get_tc (sym
)->class = XMC_PR
;
3086 if (*input_line_pointer
== ',')
3088 ++input_line_pointer
;
3089 align
= get_absolute_expression ();
3092 ppc_change_csect (sym
, align
);
3094 demand_empty_rest_of_line ();
3097 /* Change to a different csect. */
3100 ppc_change_csect (sym
, align
)
3104 if (S_IS_DEFINED (sym
))
3105 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3115 /* This is a new csect. We need to look at the symbol class to
3116 figure out whether it should go in the text section or the
3120 switch (symbol_get_tc (sym
)->class)
3130 S_SET_SEGMENT (sym
, text_section
);
3131 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3132 ++ppc_text_subsegment
;
3133 list_ptr
= &ppc_text_csects
;
3143 if (ppc_toc_csect
!= NULL
3144 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3145 == ppc_data_subsegment
))
3147 S_SET_SEGMENT (sym
, data_section
);
3148 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3149 ++ppc_data_subsegment
;
3150 list_ptr
= &ppc_data_csects
;
3156 /* We set the obstack chunk size to a small value before
3157 changing subsegments, so that we don't use a lot of memory
3158 space for what may be a small section. */
3159 hold_chunksize
= chunksize
;
3162 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3163 symbol_get_tc (sym
)->subseg
);
3165 chunksize
= hold_chunksize
;
3168 ppc_after_toc_frag
= frag_now
;
3170 record_alignment (sec
, align
);
3172 frag_align_code (align
, 0);
3174 frag_align (align
, 0, 0);
3176 symbol_set_frag (sym
, frag_now
);
3177 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3179 symbol_get_tc (sym
)->align
= align
;
3180 symbol_get_tc (sym
)->output
= 1;
3181 symbol_get_tc (sym
)->within
= sym
;
3183 for (list
= *list_ptr
;
3184 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3185 list
= symbol_get_tc (list
)->next
)
3187 symbol_get_tc (list
)->next
= sym
;
3189 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3190 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3194 ppc_current_csect
= sym
;
3197 /* This function handles the .text and .data pseudo-ops. These
3198 pseudo-ops aren't really used by XCOFF; we implement them for the
3199 convenience of people who aren't used to XCOFF. */
3210 else if (type
== 'd')
3215 sym
= symbol_find_or_make (name
);
3217 ppc_change_csect (sym
, 2);
3219 demand_empty_rest_of_line ();
3222 /* This function handles the .section pseudo-op. This is mostly to
3223 give an error, since XCOFF only supports .text, .data and .bss, but
3224 we do permit the user to name the text or data section. */
3227 ppc_named_section (ignore
)
3228 int ignore ATTRIBUTE_UNUSED
;
3231 const char *real_name
;
3235 user_name
= input_line_pointer
;
3236 c
= get_symbol_end ();
3238 if (strcmp (user_name
, ".text") == 0)
3239 real_name
= ".text[PR]";
3240 else if (strcmp (user_name
, ".data") == 0)
3241 real_name
= ".data[RW]";
3244 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3245 *input_line_pointer
= c
;
3246 ignore_rest_of_line ();
3250 *input_line_pointer
= c
;
3252 sym
= symbol_find_or_make (real_name
);
3254 ppc_change_csect (sym
, 2);
3256 demand_empty_rest_of_line ();
3259 /* The .extern pseudo-op. We create an undefined symbol. */
3263 int ignore ATTRIBUTE_UNUSED
;
3268 name
= input_line_pointer
;
3269 endc
= get_symbol_end ();
3271 (void) symbol_find_or_make (name
);
3273 *input_line_pointer
= endc
;
3275 demand_empty_rest_of_line ();
3278 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3282 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 symbol_get_tc (sym
)->output
= 1;
3297 demand_empty_rest_of_line ();
3300 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3301 although I don't know why it bothers. */
3305 int ignore ATTRIBUTE_UNUSED
;
3312 name
= input_line_pointer
;
3313 endc
= get_symbol_end ();
3315 sym
= symbol_find_or_make (name
);
3317 *input_line_pointer
= endc
;
3319 if (*input_line_pointer
!= ',')
3321 as_bad (_("missing rename string"));
3322 ignore_rest_of_line ();
3325 ++input_line_pointer
;
3327 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3329 demand_empty_rest_of_line ();
3332 /* The .stabx pseudo-op. This is similar to a normal .stabs
3333 pseudo-op, but slightly different. A sample is
3334 .stabx "main:F-1",.main,142,0
3335 The first argument is the symbol name to create. The second is the
3336 value, and the third is the storage class. The fourth seems to be
3337 always zero, and I am assuming it is the type. */
3341 int ignore ATTRIBUTE_UNUSED
;
3348 name
= demand_copy_C_string (&len
);
3350 if (*input_line_pointer
!= ',')
3352 as_bad (_("missing value"));
3355 ++input_line_pointer
;
3357 ppc_stab_symbol
= TRUE
;
3358 sym
= symbol_make (name
);
3359 ppc_stab_symbol
= FALSE
;
3361 symbol_get_tc (sym
)->real_name
= name
;
3363 (void) expression (&exp
);
3370 as_bad (_("illegal .stabx expression; zero assumed"));
3371 exp
.X_add_number
= 0;
3374 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3375 symbol_set_frag (sym
, &zero_address_frag
);
3379 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3380 symbol_set_value_expression (sym
, &exp
);
3384 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3385 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3390 /* The value is some complex expression. This will probably
3391 fail at some later point, but this is probably the right
3392 thing to do here. */
3393 symbol_set_value_expression (sym
, &exp
);
3397 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3398 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3400 if (*input_line_pointer
!= ',')
3402 as_bad (_("missing class"));
3405 ++input_line_pointer
;
3407 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3409 if (*input_line_pointer
!= ',')
3411 as_bad (_("missing type"));
3414 ++input_line_pointer
;
3416 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3418 symbol_get_tc (sym
)->output
= 1;
3420 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3422 symbol_get_tc (sym
)->within
= ppc_current_block
;
3427 .stabx "z",arrays_,133,0
3430 .comm arrays_,13768,3
3432 resolve_symbol_value will copy the exp's "within" into sym's when the
3433 offset is 0. Since this seems to be corner case problem,
3434 only do the correction for storage class C_STSYM. A better solution
3435 would be to have the tc field updated in ppc_symbol_new_hook. */
3437 if (exp
.X_op
== O_symbol
)
3439 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3443 if (exp
.X_op
!= O_symbol
3444 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3445 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3446 ppc_frob_label (sym
);
3449 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3450 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3451 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3452 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3455 demand_empty_rest_of_line ();
3458 /* The .function pseudo-op. This takes several arguments. The first
3459 argument seems to be the external name of the symbol. The second
3460 argument seems to be the label for the start of the function. gcc
3461 uses the same name for both. I have no idea what the third and
3462 fourth arguments are meant to be. The optional fifth argument is
3463 an expression for the size of the function. In COFF this symbol
3464 gets an aux entry like that used for a csect. */
3467 ppc_function (ignore
)
3468 int ignore ATTRIBUTE_UNUSED
;
3476 name
= input_line_pointer
;
3477 endc
= get_symbol_end ();
3479 /* Ignore any [PR] suffix. */
3480 name
= ppc_canonicalize_symbol_name (name
);
3481 s
= strchr (name
, '[');
3482 if (s
!= (char *) NULL
3483 && strcmp (s
+ 1, "PR]") == 0)
3486 ext_sym
= symbol_find_or_make (name
);
3488 *input_line_pointer
= endc
;
3490 if (*input_line_pointer
!= ',')
3492 as_bad (_("missing symbol name"));
3493 ignore_rest_of_line ();
3496 ++input_line_pointer
;
3498 name
= input_line_pointer
;
3499 endc
= get_symbol_end ();
3501 lab_sym
= symbol_find_or_make (name
);
3503 *input_line_pointer
= endc
;
3505 if (ext_sym
!= lab_sym
)
3509 exp
.X_op
= O_symbol
;
3510 exp
.X_add_symbol
= lab_sym
;
3511 exp
.X_op_symbol
= NULL
;
3512 exp
.X_add_number
= 0;
3514 symbol_set_value_expression (ext_sym
, &exp
);
3517 if (symbol_get_tc (ext_sym
)->class == -1)
3518 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3519 symbol_get_tc (ext_sym
)->output
= 1;
3521 if (*input_line_pointer
== ',')
3525 /* Ignore the third argument. */
3526 ++input_line_pointer
;
3527 expression (&ignore
);
3528 if (*input_line_pointer
== ',')
3530 /* Ignore the fourth argument. */
3531 ++input_line_pointer
;
3532 expression (&ignore
);
3533 if (*input_line_pointer
== ',')
3535 /* The fifth argument is the function size. */
3536 ++input_line_pointer
;
3537 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3540 &zero_address_frag
);
3541 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3546 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3547 SF_SET_FUNCTION (ext_sym
);
3548 SF_SET_PROCESS (ext_sym
);
3549 coff_add_linesym (ext_sym
);
3551 demand_empty_rest_of_line ();
3554 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3555 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3556 with the correct line number */
3558 static symbolS
*saved_bi_sym
= 0;
3562 int ignore ATTRIBUTE_UNUSED
;
3566 sym
= symbol_make (".bf");
3567 S_SET_SEGMENT (sym
, text_section
);
3568 symbol_set_frag (sym
, frag_now
);
3569 S_SET_VALUE (sym
, frag_now_fix ());
3570 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3572 coff_line_base
= get_absolute_expression ();
3574 S_SET_NUMBER_AUXILIARY (sym
, 1);
3575 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3577 /* Line number for bi. */
3580 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3585 symbol_get_tc (sym
)->output
= 1;
3587 ppc_frob_label (sym
);
3589 demand_empty_rest_of_line ();
3592 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3593 ".ef", except that the line number is absolute, not relative to the
3594 most recent ".bf" symbol. */
3598 int ignore ATTRIBUTE_UNUSED
;
3602 sym
= symbol_make (".ef");
3603 S_SET_SEGMENT (sym
, text_section
);
3604 symbol_set_frag (sym
, frag_now
);
3605 S_SET_VALUE (sym
, frag_now_fix ());
3606 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3607 S_SET_NUMBER_AUXILIARY (sym
, 1);
3608 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3609 symbol_get_tc (sym
)->output
= 1;
3611 ppc_frob_label (sym
);
3613 demand_empty_rest_of_line ();
3616 /* The .bi and .ei pseudo-ops. These take a string argument and
3617 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3618 the symbol list. The value of .bi will be know when the next .bf
3625 static symbolS
*last_biei
;
3632 name
= demand_copy_C_string (&len
);
3634 /* The value of these symbols is actually file offset. Here we set
3635 the value to the index into the line number entries. In
3636 ppc_frob_symbols we set the fix_line field, which will cause BFD
3637 to do the right thing. */
3639 sym
= symbol_make (name
);
3640 /* obj-coff.c currently only handles line numbers correctly in the
3642 S_SET_SEGMENT (sym
, text_section
);
3643 S_SET_VALUE (sym
, coff_n_line_nos
);
3644 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3646 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3647 symbol_get_tc (sym
)->output
= 1;
3655 for (look
= last_biei
? last_biei
: symbol_rootP
;
3656 (look
!= (symbolS
*) NULL
3657 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3658 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3659 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3660 look
= symbol_next (look
))
3662 if (look
!= (symbolS
*) NULL
)
3664 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3665 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3669 demand_empty_rest_of_line ();
3672 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3673 There is one argument, which is a csect symbol. The value of the
3674 .bs symbol is the index of this csect symbol. */
3678 int ignore ATTRIBUTE_UNUSED
;
3685 if (ppc_current_block
!= NULL
)
3686 as_bad (_("nested .bs blocks"));
3688 name
= input_line_pointer
;
3689 endc
= get_symbol_end ();
3691 csect
= symbol_find_or_make (name
);
3693 *input_line_pointer
= endc
;
3695 sym
= symbol_make (".bs");
3696 S_SET_SEGMENT (sym
, now_seg
);
3697 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3698 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3699 symbol_get_tc (sym
)->output
= 1;
3701 symbol_get_tc (sym
)->within
= csect
;
3703 ppc_frob_label (sym
);
3705 ppc_current_block
= sym
;
3707 demand_empty_rest_of_line ();
3710 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3714 int ignore ATTRIBUTE_UNUSED
;
3718 if (ppc_current_block
== NULL
)
3719 as_bad (_(".es without preceding .bs"));
3721 sym
= symbol_make (".es");
3722 S_SET_SEGMENT (sym
, now_seg
);
3723 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3724 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3725 symbol_get_tc (sym
)->output
= 1;
3727 ppc_frob_label (sym
);
3729 ppc_current_block
= NULL
;
3731 demand_empty_rest_of_line ();
3734 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3739 int ignore ATTRIBUTE_UNUSED
;
3743 sym
= symbol_make (".bb");
3744 S_SET_SEGMENT (sym
, text_section
);
3745 symbol_set_frag (sym
, frag_now
);
3746 S_SET_VALUE (sym
, frag_now_fix ());
3747 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3749 S_SET_NUMBER_AUXILIARY (sym
, 1);
3750 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3752 symbol_get_tc (sym
)->output
= 1;
3754 SF_SET_PROCESS (sym
);
3756 ppc_frob_label (sym
);
3758 demand_empty_rest_of_line ();
3761 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3766 int ignore ATTRIBUTE_UNUSED
;
3770 sym
= symbol_make (".eb");
3771 S_SET_SEGMENT (sym
, text_section
);
3772 symbol_set_frag (sym
, frag_now
);
3773 S_SET_VALUE (sym
, frag_now_fix ());
3774 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3775 S_SET_NUMBER_AUXILIARY (sym
, 1);
3776 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3777 symbol_get_tc (sym
)->output
= 1;
3779 SF_SET_PROCESS (sym
);
3781 ppc_frob_label (sym
);
3783 demand_empty_rest_of_line ();
3786 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3791 int ignore ATTRIBUTE_UNUSED
;
3797 name
= demand_copy_C_string (&len
);
3798 sym
= symbol_make (name
);
3799 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3800 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3801 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3802 S_SET_VALUE (sym
, 0);
3803 symbol_get_tc (sym
)->output
= 1;
3805 ppc_frob_label (sym
);
3807 demand_empty_rest_of_line ();
3810 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3814 int ignore ATTRIBUTE_UNUSED
;
3818 sym
= symbol_make (".ec");
3819 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3820 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3821 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3822 S_SET_VALUE (sym
, 0);
3823 symbol_get_tc (sym
)->output
= 1;
3825 ppc_frob_label (sym
);
3827 demand_empty_rest_of_line ();
3830 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3834 int ignore ATTRIBUTE_UNUSED
;
3836 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3837 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3844 subseg
= ppc_data_subsegment
;
3845 ++ppc_data_subsegment
;
3847 subseg_new (segment_name (data_section
), subseg
);
3848 ppc_toc_frag
= frag_now
;
3850 sym
= symbol_find_or_make ("TOC[TC0]");
3851 symbol_set_frag (sym
, frag_now
);
3852 S_SET_SEGMENT (sym
, data_section
);
3853 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3854 symbol_get_tc (sym
)->subseg
= subseg
;
3855 symbol_get_tc (sym
)->output
= 1;
3856 symbol_get_tc (sym
)->within
= sym
;
3858 ppc_toc_csect
= sym
;
3860 for (list
= ppc_data_csects
;
3861 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3862 list
= symbol_get_tc (list
)->next
)
3864 symbol_get_tc (list
)->next
= sym
;
3866 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3867 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3871 ppc_current_csect
= ppc_toc_csect
;
3873 demand_empty_rest_of_line ();
3876 /* The AIX assembler automatically aligns the operands of a .long or
3877 .short pseudo-op, and we want to be compatible. */
3880 ppc_xcoff_cons (log_size
)
3883 frag_align (log_size
, 0, 0);
3884 record_alignment (now_seg
, log_size
);
3885 cons (1 << log_size
);
3890 int dummy ATTRIBUTE_UNUSED
;
3895 (void) expression (&exp
);
3897 if (exp
.X_op
!= O_constant
)
3899 as_bad (_("non-constant byte count"));
3903 byte_count
= exp
.X_add_number
;
3905 if (*input_line_pointer
!= ',')
3907 as_bad (_("missing value"));
3911 ++input_line_pointer
;
3915 #endif /* OBJ_XCOFF */
3916 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3918 /* The .tc pseudo-op. This is used when generating either XCOFF or
3919 ELF. This takes two or more arguments.
3921 When generating XCOFF output, the first argument is the name to
3922 give to this location in the toc; this will be a symbol with class
3923 TC. The rest of the arguments are N-byte values to actually put at
3924 this location in the TOC; often there is just one more argument, a
3925 relocatable symbol reference. The size of the value to store
3926 depends on target word size. A 32-bit target uses 4-byte values, a
3927 64-bit target uses 8-byte values.
3929 When not generating XCOFF output, the arguments are the same, but
3930 the first argument is simply ignored. */
3934 int ignore ATTRIBUTE_UNUSED
;
3938 /* Define the TOC symbol name. */
3944 if (ppc_toc_csect
== (symbolS
*) NULL
3945 || ppc_toc_csect
!= ppc_current_csect
)
3947 as_bad (_(".tc not in .toc section"));
3948 ignore_rest_of_line ();
3952 name
= input_line_pointer
;
3953 endc
= get_symbol_end ();
3955 sym
= symbol_find_or_make (name
);
3957 *input_line_pointer
= endc
;
3959 if (S_IS_DEFINED (sym
))
3963 label
= symbol_get_tc (ppc_current_csect
)->within
;
3964 if (symbol_get_tc (label
)->class != XMC_TC0
)
3966 as_bad (_(".tc with no label"));
3967 ignore_rest_of_line ();
3971 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3972 symbol_set_frag (label
, symbol_get_frag (sym
));
3973 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3975 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3976 ++input_line_pointer
;
3981 S_SET_SEGMENT (sym
, now_seg
);
3982 symbol_set_frag (sym
, frag_now
);
3983 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3984 symbol_get_tc (sym
)->class = XMC_TC
;
3985 symbol_get_tc (sym
)->output
= 1;
3987 ppc_frob_label (sym
);
3990 #endif /* OBJ_XCOFF */
3994 /* Skip the TOC symbol name. */
3995 while (is_part_of_name (*input_line_pointer
)
3996 || *input_line_pointer
== '['
3997 || *input_line_pointer
== ']'
3998 || *input_line_pointer
== '{'
3999 || *input_line_pointer
== '}')
4000 ++input_line_pointer
;
4002 /* Align to a four/eight byte boundary. */
4003 align
= ppc_obj64
? 3 : 2;
4004 frag_align (align
, 0, 0);
4005 record_alignment (now_seg
, align
);
4006 #endif /* OBJ_ELF */
4008 if (*input_line_pointer
!= ',')
4009 demand_empty_rest_of_line ();
4012 ++input_line_pointer
;
4013 cons (ppc_obj64
? 8 : 4);
4017 /* Pseudo-op .machine. */
4020 ppc_machine (ignore
)
4021 int ignore ATTRIBUTE_UNUSED
;
4024 #define MAX_HISTORY 100
4025 static unsigned long *cpu_history
;
4026 static int curr_hist
;
4030 if (*input_line_pointer
== '"')
4033 cpu_string
= demand_copy_C_string (&len
);
4038 cpu_string
= input_line_pointer
;
4039 c
= get_symbol_end ();
4040 cpu_string
= xstrdup (cpu_string
);
4041 *input_line_pointer
= c
;
4044 if (cpu_string
!= NULL
)
4046 unsigned long old_cpu
= ppc_cpu
;
4049 for (p
= cpu_string
; *p
!= 0; p
++)
4052 if (strcmp (cpu_string
, "push") == 0)
4054 if (cpu_history
== NULL
)
4055 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4057 if (curr_hist
>= MAX_HISTORY
)
4058 as_bad (_(".machine stack overflow"));
4060 cpu_history
[curr_hist
++] = ppc_cpu
;
4062 else if (strcmp (cpu_string
, "pop") == 0)
4065 as_bad (_(".machine stack underflow"));
4067 ppc_cpu
= cpu_history
[--curr_hist
];
4069 else if (parse_cpu (cpu_string
))
4072 as_bad (_("invalid machine `%s'"), cpu_string
);
4074 if (ppc_cpu
!= old_cpu
)
4075 ppc_setup_opcodes ();
4078 demand_empty_rest_of_line ();
4081 /* See whether a symbol is in the TOC section. */
4084 ppc_is_toc_sym (sym
)
4088 return symbol_get_tc (sym
)->class == XMC_TC
;
4091 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4093 return strcmp (sname
, ".toc") == 0;
4095 return strcmp (sname
, ".got") == 0;
4098 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4102 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4104 /* Set the current section. */
4106 ppc_set_current_section (new)
4109 ppc_previous_section
= ppc_current_section
;
4110 ppc_current_section
= new;
4113 /* pseudo-op: .previous
4114 behaviour: toggles the current section with the previous section.
4116 warnings: "No previous section" */
4119 ppc_previous (ignore
)
4120 int ignore ATTRIBUTE_UNUSED
;
4124 if (ppc_previous_section
== NULL
)
4126 as_warn (_("No previous section to return to. Directive ignored."));
4130 subseg_set (ppc_previous_section
, 0);
4132 ppc_set_current_section (ppc_previous_section
);
4135 /* pseudo-op: .pdata
4136 behaviour: predefined read only data section
4140 initial: .section .pdata "adr3"
4141 a - don't know -- maybe a misprint
4142 d - initialized data
4144 3 - double word aligned (that would be 4 byte boundary)
4147 Tag index tables (also known as the function table) for exception
4148 handling, debugging, etc. */
4152 int ignore ATTRIBUTE_UNUSED
;
4154 if (pdata_section
== 0)
4156 pdata_section
= subseg_new (".pdata", 0);
4158 bfd_set_section_flags (stdoutput
, pdata_section
,
4159 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4160 | SEC_READONLY
| SEC_DATA
));
4162 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4166 pdata_section
= subseg_new (".pdata", 0);
4168 ppc_set_current_section (pdata_section
);
4171 /* pseudo-op: .ydata
4172 behaviour: predefined read only data section
4176 initial: .section .ydata "drw3"
4177 a - don't know -- maybe a misprint
4178 d - initialized data
4180 3 - double word aligned (that would be 4 byte boundary)
4182 Tag tables (also known as the scope table) for exception handling,
4187 int ignore ATTRIBUTE_UNUSED
;
4189 if (ydata_section
== 0)
4191 ydata_section
= subseg_new (".ydata", 0);
4192 bfd_set_section_flags (stdoutput
, ydata_section
,
4193 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4194 | SEC_READONLY
| SEC_DATA
));
4196 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4200 ydata_section
= subseg_new (".ydata", 0);
4202 ppc_set_current_section (ydata_section
);
4205 /* pseudo-op: .reldata
4206 behaviour: predefined read write data section
4207 double word aligned (4-byte)
4208 FIXME: relocation is applied to it
4209 FIXME: what's the difference between this and .data?
4212 initial: .section .reldata "drw3"
4213 d - initialized data
4216 3 - double word aligned (that would be 8 byte boundary)
4219 Like .data, but intended to hold data subject to relocation, such as
4220 function descriptors, etc. */
4223 ppc_reldata (ignore
)
4224 int ignore ATTRIBUTE_UNUSED
;
4226 if (reldata_section
== 0)
4228 reldata_section
= subseg_new (".reldata", 0);
4230 bfd_set_section_flags (stdoutput
, reldata_section
,
4231 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4234 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4238 reldata_section
= subseg_new (".reldata", 0);
4240 ppc_set_current_section (reldata_section
);
4243 /* pseudo-op: .rdata
4244 behaviour: predefined read only data section
4248 initial: .section .rdata "dr3"
4249 d - initialized data
4251 3 - double word aligned (that would be 4 byte boundary) */
4255 int ignore ATTRIBUTE_UNUSED
;
4257 if (rdata_section
== 0)
4259 rdata_section
= subseg_new (".rdata", 0);
4260 bfd_set_section_flags (stdoutput
, rdata_section
,
4261 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4262 | SEC_READONLY
| SEC_DATA
));
4264 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4268 rdata_section
= subseg_new (".rdata", 0);
4270 ppc_set_current_section (rdata_section
);
4273 /* pseudo-op: .ualong
4274 behaviour: much like .int, with the exception that no alignment is
4276 FIXME: test the alignment statement
4282 int ignore ATTRIBUTE_UNUSED
;
4288 /* pseudo-op: .znop <symbol name>
4289 behaviour: Issue a nop instruction
4290 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4291 the supplied symbol name.
4293 warnings: Missing symbol name */
4297 int ignore ATTRIBUTE_UNUSED
;
4300 const struct powerpc_opcode
*opcode
;
4311 /* Strip out the symbol name. */
4312 symbol_name
= input_line_pointer
;
4313 c
= get_symbol_end ();
4315 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4316 strcpy (name
, symbol_name
);
4318 sym
= symbol_find_or_make (name
);
4320 *input_line_pointer
= c
;
4324 /* Look up the opcode in the hash table. */
4325 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4327 /* Stick in the nop. */
4328 insn
= opcode
->opcode
;
4330 /* Write out the instruction. */
4332 md_number_to_chars (f
, insn
, 4);
4334 f
- frag_now
->fr_literal
,
4339 BFD_RELOC_16_GOT_PCREL
);
4352 register char *name
;
4356 register symbolS
*symbolP
;
4359 name
= input_line_pointer
;
4360 c
= get_symbol_end ();
4362 /* just after name is now '\0'. */
4363 p
= input_line_pointer
;
4366 if (*input_line_pointer
!= ',')
4368 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4369 ignore_rest_of_line ();
4373 input_line_pointer
++; /* skip ',' */
4374 if ((temp
= get_absolute_expression ()) < 0)
4376 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4377 ignore_rest_of_line ();
4383 /* The third argument to .comm is the alignment. */
4384 if (*input_line_pointer
!= ',')
4388 ++input_line_pointer
;
4389 align
= get_absolute_expression ();
4392 as_warn (_("ignoring bad alignment"));
4399 symbolP
= symbol_find_or_make (name
);
4402 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4404 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4405 S_GET_NAME (symbolP
));
4406 ignore_rest_of_line ();
4410 if (S_GET_VALUE (symbolP
))
4412 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4413 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4414 S_GET_NAME (symbolP
),
4415 (long) S_GET_VALUE (symbolP
),
4420 S_SET_VALUE (symbolP
, (valueT
) temp
);
4421 S_SET_EXTERNAL (symbolP
);
4424 demand_empty_rest_of_line ();
4428 * implement the .section pseudo op:
4429 * .section name {, "flags"}
4431 * | +--- optional flags: 'b' for bss
4433 * +-- section name 'l' for lib
4437 * 'd' (apparently m88k for data)
4439 * But if the argument is not a quoted string, treat it as a
4440 * subsegment number.
4442 * FIXME: this is a copy of the section processing from obj-coff.c, with
4443 * additions/changes for the moto-pas assembler support. There are three
4446 * FIXME: I just noticed this. This doesn't work at all really. It it
4447 * setting bits that bfd probably neither understands or uses. The
4448 * correct approach (?) will have to incorporate extra fields attached
4449 * to the section to hold the system specific stuff. (krk)
4452 * 'a' - unknown - referred to in documentation, but no definition supplied
4453 * 'c' - section has code
4454 * 'd' - section has initialized data
4455 * 'u' - section has uninitialized data
4456 * 'i' - section contains directives (info)
4457 * 'n' - section can be discarded
4458 * 'R' - remove section at link time
4460 * Section Protection:
4461 * 'r' - section is readable
4462 * 'w' - section is writeable
4463 * 'x' - section is executable
4464 * 's' - section is sharable
4466 * Section Alignment:
4467 * '0' - align to byte boundary
4468 * '1' - align to halfword undary
4469 * '2' - align to word boundary
4470 * '3' - align to doubleword boundary
4471 * '4' - align to quadword boundary
4472 * '5' - align to 32 byte boundary
4473 * '6' - align to 64 byte boundary
4478 ppc_pe_section (ignore
)
4479 int ignore ATTRIBUTE_UNUSED
;
4481 /* Strip out the section name. */
4490 section_name
= input_line_pointer
;
4491 c
= get_symbol_end ();
4493 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4494 strcpy (name
, section_name
);
4496 *input_line_pointer
= c
;
4501 flags
= SEC_NO_FLAGS
;
4503 if (strcmp (name
, ".idata$2") == 0)
4507 else if (strcmp (name
, ".idata$3") == 0)
4511 else if (strcmp (name
, ".idata$4") == 0)
4515 else if (strcmp (name
, ".idata$5") == 0)
4519 else if (strcmp (name
, ".idata$6") == 0)
4524 /* Default alignment to 16 byte boundary. */
4527 if (*input_line_pointer
== ',')
4529 ++input_line_pointer
;
4531 if (*input_line_pointer
!= '"')
4532 exp
= get_absolute_expression ();
4535 ++input_line_pointer
;
4536 while (*input_line_pointer
!= '"'
4537 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4539 switch (*input_line_pointer
)
4541 /* Section Contents */
4542 case 'a': /* unknown */
4543 as_bad (_("Unsupported section attribute -- 'a'"));
4545 case 'c': /* code section */
4548 case 'd': /* section has initialized data */
4551 case 'u': /* section has uninitialized data */
4552 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4556 case 'i': /* section contains directives (info) */
4557 /* FIXME: This is IMAGE_SCN_LNK_INFO
4559 flags
|= SEC_HAS_CONTENTS
;
4561 case 'n': /* section can be discarded */
4564 case 'R': /* Remove section at link time */
4565 flags
|= SEC_NEVER_LOAD
;
4568 /* Section Protection */
4569 case 'r': /* section is readable */
4570 flags
|= IMAGE_SCN_MEM_READ
;
4572 case 'w': /* section is writeable */
4573 flags
|= IMAGE_SCN_MEM_WRITE
;
4575 case 'x': /* section is executable */
4576 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4578 case 's': /* section is sharable */
4579 flags
|= IMAGE_SCN_MEM_SHARED
;
4582 /* Section Alignment */
4583 case '0': /* align to byte boundary */
4584 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4587 case '1': /* align to halfword boundary */
4588 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4591 case '2': /* align to word boundary */
4592 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4595 case '3': /* align to doubleword boundary */
4596 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4599 case '4': /* align to quadword boundary */
4600 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4603 case '5': /* align to 32 byte boundary */
4604 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4607 case '6': /* align to 64 byte boundary */
4608 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4613 as_bad (_("unknown section attribute '%c'"),
4614 *input_line_pointer
);
4617 ++input_line_pointer
;
4619 if (*input_line_pointer
== '"')
4620 ++input_line_pointer
;
4624 sec
= subseg_new (name
, (subsegT
) exp
);
4626 ppc_set_current_section (sec
);
4628 if (flags
!= SEC_NO_FLAGS
)
4630 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4631 as_bad (_("error setting flags for \"%s\": %s"),
4632 bfd_section_name (stdoutput
, sec
),
4633 bfd_errmsg (bfd_get_error ()));
4636 bfd_set_section_alignment (stdoutput
, sec
, align
);
4641 ppc_pe_function (ignore
)
4642 int ignore ATTRIBUTE_UNUSED
;
4648 name
= input_line_pointer
;
4649 endc
= get_symbol_end ();
4651 ext_sym
= symbol_find_or_make (name
);
4653 *input_line_pointer
= endc
;
4655 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4656 SF_SET_FUNCTION (ext_sym
);
4657 SF_SET_PROCESS (ext_sym
);
4658 coff_add_linesym (ext_sym
);
4660 demand_empty_rest_of_line ();
4664 ppc_pe_tocd (ignore
)
4665 int ignore ATTRIBUTE_UNUSED
;
4667 if (tocdata_section
== 0)
4669 tocdata_section
= subseg_new (".tocd", 0);
4670 /* FIXME: section flags won't work. */
4671 bfd_set_section_flags (stdoutput
, tocdata_section
,
4672 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4673 | SEC_READONLY
| SEC_DATA
));
4675 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4679 rdata_section
= subseg_new (".tocd", 0);
4682 ppc_set_current_section (tocdata_section
);
4684 demand_empty_rest_of_line ();
4687 /* Don't adjust TOC relocs to use the section symbol. */
4690 ppc_pe_fix_adjustable (fix
)
4693 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4700 /* XCOFF specific symbol and file handling. */
4702 /* Canonicalize the symbol name. We use the to force the suffix, if
4703 any, to use square brackets, and to be in upper case. */
4706 ppc_canonicalize_symbol_name (name
)
4711 if (ppc_stab_symbol
)
4714 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4728 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4731 if (*s
== '\0' || s
[1] != '\0')
4732 as_bad (_("bad symbol suffix"));
4740 /* Set the class of a symbol based on the suffix, if any. This is
4741 called whenever a new symbol is created. */
4744 ppc_symbol_new_hook (sym
)
4747 struct ppc_tc_sy
*tc
;
4750 tc
= symbol_get_tc (sym
);
4754 tc
->real_name
= NULL
;
4760 if (ppc_stab_symbol
)
4763 s
= strchr (S_GET_NAME (sym
), '[');
4764 if (s
== (const char *) NULL
)
4766 /* There is no suffix. */
4775 if (strcmp (s
, "BS]") == 0)
4779 if (strcmp (s
, "DB]") == 0)
4781 else if (strcmp (s
, "DS]") == 0)
4785 if (strcmp (s
, "GL]") == 0)
4789 if (strcmp (s
, "PR]") == 0)
4793 if (strcmp (s
, "RO]") == 0)
4795 else if (strcmp (s
, "RW]") == 0)
4799 if (strcmp (s
, "SV]") == 0)
4803 if (strcmp (s
, "TC]") == 0)
4805 else if (strcmp (s
, "TI]") == 0)
4807 else if (strcmp (s
, "TB]") == 0)
4809 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4810 tc
->class = XMC_TC0
;
4813 if (strcmp (s
, "UA]") == 0)
4815 else if (strcmp (s
, "UC]") == 0)
4819 if (strcmp (s
, "XO]") == 0)
4824 if (tc
->class == -1)
4825 as_bad (_("Unrecognized symbol suffix"));
4828 /* Set the class of a label based on where it is defined. This
4829 handles symbols without suffixes. Also, move the symbol so that it
4830 follows the csect symbol. */
4833 ppc_frob_label (sym
)
4836 if (ppc_current_csect
!= (symbolS
*) NULL
)
4838 if (symbol_get_tc (sym
)->class == -1)
4839 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4841 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4842 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4843 &symbol_rootP
, &symbol_lastP
);
4844 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4848 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4849 seen. It tells ppc_adjust_symtab whether it needs to look through
4852 static bfd_boolean ppc_saw_abs
;
4854 /* Change the name of a symbol just before writing it out. Set the
4855 real name if the .rename pseudo-op was used. Otherwise, remove any
4856 class suffix. Return 1 if the symbol should not be included in the
4860 ppc_frob_symbol (sym
)
4863 static symbolS
*ppc_last_function
;
4864 static symbolS
*set_end
;
4866 /* Discard symbols that should not be included in the output symbol
4868 if (! symbol_used_in_reloc_p (sym
)
4869 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4870 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4871 && ! symbol_get_tc (sym
)->output
4872 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4875 /* This one will disappear anyway. Don't make a csect sym for it. */
4876 if (sym
== abs_section_sym
)
4879 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4880 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4886 name
= S_GET_NAME (sym
);
4887 s
= strchr (name
, '[');
4888 if (s
!= (char *) NULL
)
4894 snew
= xmalloc (len
+ 1);
4895 memcpy (snew
, name
, len
);
4898 S_SET_NAME (sym
, snew
);
4902 if (set_end
!= (symbolS
*) NULL
)
4904 SA_SET_SYM_ENDNDX (set_end
, sym
);
4908 if (SF_GET_FUNCTION (sym
))
4910 if (ppc_last_function
!= (symbolS
*) NULL
)
4911 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4912 ppc_last_function
= sym
;
4913 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4915 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4916 SA_SET_SYM_FSIZE (sym
,
4917 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4920 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4921 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4923 if (ppc_last_function
== (symbolS
*) NULL
)
4924 as_bad (_(".ef with no preceding .function"));
4927 set_end
= ppc_last_function
;
4928 ppc_last_function
= NULL
;
4930 /* We don't have a C_EFCN symbol, but we need to force the
4931 COFF backend to believe that it has seen one. */
4932 coff_last_function
= NULL
;
4936 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4937 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4938 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4939 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4940 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4941 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4942 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4943 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4944 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4945 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4946 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4948 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4949 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4952 union internal_auxent
*a
;
4954 /* Create a csect aux. */
4955 i
= S_GET_NUMBER_AUXILIARY (sym
);
4956 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4957 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4958 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4960 /* This is the TOC table. */
4961 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4962 a
->x_csect
.x_scnlen
.l
= 0;
4963 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4965 else if (symbol_get_tc (sym
)->subseg
!= 0)
4967 /* This is a csect symbol. x_scnlen is the size of the
4969 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4970 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4971 S_GET_SEGMENT (sym
))
4972 - S_GET_VALUE (sym
));
4975 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4976 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4977 - S_GET_VALUE (sym
));
4979 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4981 else if (S_GET_SEGMENT (sym
) == bss_section
)
4983 /* This is a common symbol. */
4984 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4985 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4986 if (S_IS_EXTERNAL (sym
))
4987 symbol_get_tc (sym
)->class = XMC_RW
;
4989 symbol_get_tc (sym
)->class = XMC_BS
;
4991 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4993 /* This is an absolute symbol. The csect will be created by
4994 ppc_adjust_symtab. */
4996 a
->x_csect
.x_smtyp
= XTY_LD
;
4997 if (symbol_get_tc (sym
)->class == -1)
4998 symbol_get_tc (sym
)->class = XMC_XO
;
5000 else if (! S_IS_DEFINED (sym
))
5002 /* This is an external symbol. */
5003 a
->x_csect
.x_scnlen
.l
= 0;
5004 a
->x_csect
.x_smtyp
= XTY_ER
;
5006 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5010 /* This is a TOC definition. x_scnlen is the size of the
5012 next
= symbol_next (sym
);
5013 while (symbol_get_tc (next
)->class == XMC_TC0
)
5014 next
= symbol_next (next
);
5015 if (next
== (symbolS
*) NULL
5016 || symbol_get_tc (next
)->class != XMC_TC
)
5018 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5019 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5021 - S_GET_VALUE (sym
));
5023 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5024 - S_GET_VALUE (sym
));
5028 resolve_symbol_value (next
);
5029 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5030 - S_GET_VALUE (sym
));
5032 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5038 /* This is a normal symbol definition. x_scnlen is the
5039 symbol index of the containing csect. */
5040 if (S_GET_SEGMENT (sym
) == text_section
)
5041 csect
= ppc_text_csects
;
5042 else if (S_GET_SEGMENT (sym
) == data_section
)
5043 csect
= ppc_data_csects
;
5047 /* Skip the initial dummy symbol. */
5048 csect
= symbol_get_tc (csect
)->next
;
5050 if (csect
== (symbolS
*) NULL
)
5052 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5053 a
->x_csect
.x_scnlen
.l
= 0;
5057 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5059 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5060 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5061 > S_GET_VALUE (sym
))
5063 csect
= symbol_get_tc (csect
)->next
;
5066 a
->x_csect
.x_scnlen
.p
=
5067 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5068 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5071 a
->x_csect
.x_smtyp
= XTY_LD
;
5074 a
->x_csect
.x_parmhash
= 0;
5075 a
->x_csect
.x_snhash
= 0;
5076 if (symbol_get_tc (sym
)->class == -1)
5077 a
->x_csect
.x_smclas
= XMC_PR
;
5079 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5080 a
->x_csect
.x_stab
= 0;
5081 a
->x_csect
.x_snstab
= 0;
5083 /* Don't let the COFF backend resort these symbols. */
5084 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5086 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5088 /* We want the value to be the symbol index of the referenced
5089 csect symbol. BFD will do that for us if we set the right
5091 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5092 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5094 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5095 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5097 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5102 /* The value is the offset from the enclosing csect. */
5103 block
= symbol_get_tc (sym
)->within
;
5104 csect
= symbol_get_tc (block
)->within
;
5105 resolve_symbol_value (csect
);
5106 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5108 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5109 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5111 /* We want the value to be a file offset into the line numbers.
5112 BFD will do that for us if we set the right flags. We have
5113 already set the value correctly. */
5114 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5120 /* Adjust the symbol table. This creates csect symbols for all
5121 absolute symbols. */
5124 ppc_adjust_symtab ()
5131 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5135 union internal_auxent
*a
;
5137 if (S_GET_SEGMENT (sym
) != absolute_section
)
5140 csect
= symbol_create (".abs[XO]", absolute_section
,
5141 S_GET_VALUE (sym
), &zero_address_frag
);
5142 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5143 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5144 i
= S_GET_NUMBER_AUXILIARY (csect
);
5145 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5146 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5147 a
->x_csect
.x_scnlen
.l
= 0;
5148 a
->x_csect
.x_smtyp
= XTY_SD
;
5149 a
->x_csect
.x_parmhash
= 0;
5150 a
->x_csect
.x_snhash
= 0;
5151 a
->x_csect
.x_smclas
= XMC_XO
;
5152 a
->x_csect
.x_stab
= 0;
5153 a
->x_csect
.x_snstab
= 0;
5155 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5157 i
= S_GET_NUMBER_AUXILIARY (sym
);
5158 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5159 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5160 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5163 ppc_saw_abs
= FALSE
;
5166 /* Set the VMA for a section. This is called on all the sections in
5170 ppc_frob_section (sec
)
5173 static bfd_vma vma
= 0;
5175 vma
= md_section_align (sec
, vma
);
5176 bfd_set_section_vma (stdoutput
, sec
, vma
);
5177 vma
+= bfd_section_size (stdoutput
, sec
);
5180 #endif /* OBJ_XCOFF */
5182 /* Turn a string in input_line_pointer into a floating point constant
5183 of type TYPE, and store the appropriate bytes in *LITP. The number
5184 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5185 returned, or NULL on OK. */
5188 md_atof (type
, litp
, sizep
)
5194 LITTLENUM_TYPE words
[4];
5210 return _("bad call to md_atof");
5213 t
= atof_ieee (input_line_pointer
, type
, words
);
5215 input_line_pointer
= t
;
5219 if (target_big_endian
)
5221 for (i
= 0; i
< prec
; i
++)
5223 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5229 for (i
= prec
- 1; i
>= 0; i
--)
5231 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5239 /* Write a value out to the object file, using the appropriate
5243 md_number_to_chars (buf
, val
, n
)
5248 if (target_big_endian
)
5249 number_to_chars_bigendian (buf
, val
, n
);
5251 number_to_chars_littleendian (buf
, val
, n
);
5254 /* Align a section (I don't know why this is machine dependent). */
5257 md_section_align (seg
, addr
)
5261 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5263 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5266 /* We don't have any form of relaxing. */
5269 md_estimate_size_before_relax (fragp
, seg
)
5270 fragS
*fragp ATTRIBUTE_UNUSED
;
5271 asection
*seg ATTRIBUTE_UNUSED
;
5277 /* Convert a machine dependent frag. We never generate these. */
5280 md_convert_frag (abfd
, sec
, fragp
)
5281 bfd
*abfd ATTRIBUTE_UNUSED
;
5282 asection
*sec ATTRIBUTE_UNUSED
;
5283 fragS
*fragp ATTRIBUTE_UNUSED
;
5288 /* We have no need to default values of symbols. */
5291 md_undefined_symbol (name
)
5292 char *name ATTRIBUTE_UNUSED
;
5297 /* Functions concerning relocs. */
5299 /* The location from which a PC relative jump should be calculated,
5300 given a PC relative reloc. */
5303 md_pcrel_from_section (fixp
, sec
)
5305 segT sec ATTRIBUTE_UNUSED
;
5307 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5312 /* This is called to see whether a fixup should be adjusted to use a
5313 section symbol. We take the opportunity to change a fixup against
5314 a symbol in the TOC subsegment into a reloc against the
5315 corresponding .tc symbol. */
5318 ppc_fix_adjustable (fix
)
5321 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5322 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5323 TC_SYMFIELD_TYPE
*tc
;
5325 if (symseg
== absolute_section
)
5328 if (ppc_toc_csect
!= (symbolS
*) NULL
5329 && fix
->fx_addsy
!= ppc_toc_csect
5330 && symseg
== data_section
5331 && val
>= ppc_toc_frag
->fr_address
5332 && (ppc_after_toc_frag
== (fragS
*) NULL
5333 || val
< ppc_after_toc_frag
->fr_address
))
5337 for (sy
= symbol_next (ppc_toc_csect
);
5338 sy
!= (symbolS
*) NULL
;
5339 sy
= symbol_next (sy
))
5341 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5343 if (sy_tc
->class == XMC_TC0
)
5345 if (sy_tc
->class != XMC_TC
)
5347 if (val
== resolve_symbol_value (sy
))
5350 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5355 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5356 _("symbol in .toc does not match any .tc"));
5359 /* Possibly adjust the reloc to be against the csect. */
5360 tc
= symbol_get_tc (fix
->fx_addsy
);
5362 && tc
->class != XMC_TC0
5363 && tc
->class != XMC_TC
5364 && symseg
!= bss_section
5365 /* Don't adjust if this is a reloc in the toc section. */
5366 && (symseg
!= data_section
5367 || ppc_toc_csect
== NULL
5368 || val
< ppc_toc_frag
->fr_address
5369 || (ppc_after_toc_frag
!= NULL
5370 && val
>= ppc_after_toc_frag
->fr_address
)))
5373 symbolS
*next_csect
;
5375 if (symseg
== text_section
)
5376 csect
= ppc_text_csects
;
5377 else if (symseg
== data_section
)
5378 csect
= ppc_data_csects
;
5382 /* Skip the initial dummy symbol. */
5383 csect
= symbol_get_tc (csect
)->next
;
5385 if (csect
!= (symbolS
*) NULL
)
5387 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5388 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5390 /* If the csect address equals the symbol value, then we
5391 have to look through the full symbol table to see
5392 whether this is the csect we want. Note that we will
5393 only get here if the csect has zero length. */
5394 if (symbol_get_frag (csect
)->fr_address
== val
5395 && S_GET_VALUE (csect
) == val
)
5399 for (scan
= symbol_next (csect
);
5401 scan
= symbol_next (scan
))
5403 if (symbol_get_tc (scan
)->subseg
!= 0)
5405 if (scan
== fix
->fx_addsy
)
5409 /* If we found the symbol before the next csect
5410 symbol, then this is the csect we want. */
5411 if (scan
== fix
->fx_addsy
)
5418 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5419 fix
->fx_addsy
= csect
;
5424 /* Adjust a reloc against a .lcomm symbol to be against the base
5426 if (symseg
== bss_section
5427 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5429 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5431 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5438 /* A reloc from one csect to another must be kept. The assembler
5439 will, of course, keep relocs between sections, and it will keep
5440 absolute relocs, but we need to force it to keep PC relative relocs
5441 between two csects in the same section. */
5444 ppc_force_relocation (fix
)
5447 /* At this point fix->fx_addsy should already have been converted to
5448 a csect symbol. If the csect does not include the fragment, then
5449 we need to force the relocation. */
5451 && fix
->fx_addsy
!= NULL
5452 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5453 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5454 > fix
->fx_frag
->fr_address
)
5455 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5456 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5457 <= fix
->fx_frag
->fr_address
))))
5460 return generic_force_reloc (fix
);
5463 #endif /* OBJ_XCOFF */
5466 /* If this function returns non-zero, it guarantees that a relocation
5467 will be emitted for a fixup. */
5470 ppc_force_relocation (fix
)
5473 /* Branch prediction relocations must force a relocation, as must
5474 the vtable description relocs. */
5475 switch (fix
->fx_r_type
)
5477 case BFD_RELOC_PPC_B16_BRTAKEN
:
5478 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5479 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5480 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5481 case BFD_RELOC_24_PLT_PCREL
:
5482 case BFD_RELOC_PPC64_TOC
:
5488 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5489 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5492 return generic_force_reloc (fix
);
5496 ppc_fix_adjustable (fix
)
5499 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5500 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5501 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5502 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5503 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5504 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5505 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5506 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5507 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5511 /* Apply a fixup to the object code. This is called for all the
5512 fixups we generated by the call to fix_new_exp, above. In the call
5513 above we used a reloc code which was the largest legal reloc code
5514 plus the operand index. Here we undo that to recover the operand
5515 index. At this point all symbol values should be fully resolved,
5516 and we attempt to completely resolve the reloc. If we can not do
5517 that, we determine the correct reloc code and put it back in the
5521 md_apply_fix (fixP
, valP
, seg
)
5524 segT seg ATTRIBUTE_UNUSED
;
5526 valueT value
= * valP
;
5529 if (fixP
->fx_addsy
!= NULL
)
5531 /* Hack around bfd_install_relocation brain damage. */
5533 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5538 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5539 the symbol values. If we are doing this relocation the code in
5540 write.c is going to call bfd_install_relocation, which is also
5541 going to use the symbol value. That means that if the reloc is
5542 fully resolved we want to use *valP since bfd_install_relocation is
5544 However, if the reloc is not fully resolved we do not want to use
5545 *valP, and must use fx_offset instead. However, if the reloc
5546 is PC relative, we do want to use *valP since it includes the
5547 result of md_pcrel_from. This is confusing. */
5548 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5551 else if (fixP
->fx_pcrel
)
5555 value
= fixP
->fx_offset
;
5558 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5560 /* We can't actually support subtracting a symbol. */
5561 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5564 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5567 const struct powerpc_operand
*operand
;
5571 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5573 operand
= &powerpc_operands
[opindex
];
5576 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5577 does not generate a reloc. It uses the offset of `sym' within its
5578 csect. Other usages, such as `.long sym', generate relocs. This
5579 is the documented behaviour of non-TOC symbols. */
5580 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5581 && operand
->bits
== 16
5582 && operand
->shift
== 0
5583 && (operand
->insert
== NULL
|| ppc_obj64
)
5584 && fixP
->fx_addsy
!= NULL
5585 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5586 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5587 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5588 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5590 value
= fixP
->fx_offset
;
5595 /* Fetch the instruction, insert the fully resolved operand
5596 value, and stuff the instruction back again. */
5597 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5598 if (target_big_endian
)
5599 insn
= bfd_getb32 ((unsigned char *) where
);
5601 insn
= bfd_getl32 ((unsigned char *) where
);
5602 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5603 fixP
->fx_file
, fixP
->fx_line
);
5604 if (target_big_endian
)
5605 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5607 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5610 /* Nothing else to do here. */
5613 assert (fixP
->fx_addsy
!= NULL
);
5615 /* Determine a BFD reloc value based on the operand information.
5616 We are only prepared to turn a few of the operands into
5618 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5619 && operand
->bits
== 26
5620 && operand
->shift
== 0)
5621 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5622 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5623 && operand
->bits
== 16
5624 && operand
->shift
== 0)
5626 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5629 if (target_big_endian
)
5630 fixP
->fx_where
+= 2;
5633 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5634 && operand
->bits
== 26
5635 && operand
->shift
== 0)
5636 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5637 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5638 && operand
->bits
== 16
5639 && operand
->shift
== 0)
5641 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5644 if (target_big_endian
)
5645 fixP
->fx_where
+= 2;
5648 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5649 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5650 && operand
->bits
== 16
5651 && operand
->shift
== 0)
5653 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5655 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5658 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5659 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5664 fixP
->fx_r_type
= BFD_RELOC_16
;
5667 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5668 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5672 if (target_big_endian
)
5673 fixP
->fx_where
+= 2;
5675 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5681 /* Use expr_symbol_where to see if this is an expression
5683 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5684 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5685 _("unresolved expression that must be resolved"));
5687 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5688 _("unsupported relocation against %s"),
5689 S_GET_NAME (fixP
->fx_addsy
));
5697 ppc_elf_validate_fix (fixP
, seg
);
5699 switch (fixP
->fx_r_type
)
5701 case BFD_RELOC_CTOR
:
5708 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5712 case BFD_RELOC_32_PCREL
:
5713 case BFD_RELOC_PPC_EMB_NADDR32
:
5714 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5721 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5724 case BFD_RELOC_64_PCREL
:
5725 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5729 case BFD_RELOC_GPREL16
:
5730 case BFD_RELOC_16_GOT_PCREL
:
5731 case BFD_RELOC_16_GOTOFF
:
5732 case BFD_RELOC_LO16_GOTOFF
:
5733 case BFD_RELOC_HI16_GOTOFF
:
5734 case BFD_RELOC_HI16_S_GOTOFF
:
5735 case BFD_RELOC_16_BASEREL
:
5736 case BFD_RELOC_LO16_BASEREL
:
5737 case BFD_RELOC_HI16_BASEREL
:
5738 case BFD_RELOC_HI16_S_BASEREL
:
5739 case BFD_RELOC_PPC_EMB_NADDR16
:
5740 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5741 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5742 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5743 case BFD_RELOC_PPC_EMB_SDAI16
:
5744 case BFD_RELOC_PPC_EMB_SDA2REL
:
5745 case BFD_RELOC_PPC_EMB_SDA2I16
:
5746 case BFD_RELOC_PPC_EMB_RELSEC16
:
5747 case BFD_RELOC_PPC_EMB_RELST_LO
:
5748 case BFD_RELOC_PPC_EMB_RELST_HI
:
5749 case BFD_RELOC_PPC_EMB_RELST_HA
:
5750 case BFD_RELOC_PPC_EMB_RELSDA
:
5751 case BFD_RELOC_PPC_TOC16
:
5753 case BFD_RELOC_PPC64_TOC16_LO
:
5754 case BFD_RELOC_PPC64_TOC16_HI
:
5755 case BFD_RELOC_PPC64_TOC16_HA
:
5759 if (fixP
->fx_addsy
!= NULL
)
5760 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5761 _("cannot emit PC relative %s relocation against %s"),
5762 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5763 S_GET_NAME (fixP
->fx_addsy
));
5765 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5766 _("cannot emit PC relative %s relocation"),
5767 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5770 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5776 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5779 case BFD_RELOC_16_PCREL
:
5780 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5784 case BFD_RELOC_LO16
:
5786 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5789 case BFD_RELOC_LO16_PCREL
:
5790 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5794 /* This case happens when you write, for example,
5796 where L1 and L2 are defined later. */
5797 case BFD_RELOC_HI16
:
5799 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5802 case BFD_RELOC_HI16_PCREL
:
5803 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5807 case BFD_RELOC_HI16_S
:
5809 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5812 case BFD_RELOC_HI16_S_PCREL
:
5813 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5818 case BFD_RELOC_PPC64_HIGHER
:
5821 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5822 PPC_HIGHER (value
), 2);
5825 case BFD_RELOC_PPC64_HIGHER_S
:
5828 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5829 PPC_HIGHERA (value
), 2);
5832 case BFD_RELOC_PPC64_HIGHEST
:
5835 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5836 PPC_HIGHEST (value
), 2);
5839 case BFD_RELOC_PPC64_HIGHEST_S
:
5842 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5843 PPC_HIGHESTA (value
), 2);
5846 case BFD_RELOC_PPC64_ADDR16_DS
:
5847 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5848 case BFD_RELOC_PPC64_GOT16_DS
:
5849 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5850 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5851 case BFD_RELOC_PPC64_SECTOFF_DS
:
5852 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5853 case BFD_RELOC_PPC64_TOC16_DS
:
5854 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5855 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5856 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5860 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5861 unsigned long val
, mask
;
5863 if (target_big_endian
)
5864 val
= bfd_getb32 (where
- 2);
5866 val
= bfd_getl32 (where
);
5868 /* lq insns reserve the four lsbs. */
5869 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5870 && (val
& (0x3f << 26)) == (56u << 26))
5872 val
|= value
& mask
;
5873 if (target_big_endian
)
5874 bfd_putb16 ((bfd_vma
) val
, where
);
5876 bfd_putl16 ((bfd_vma
) val
, where
);
5880 case BFD_RELOC_PPC_B16_BRTAKEN
:
5881 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5882 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5883 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5886 case BFD_RELOC_PPC_TLS
:
5889 case BFD_RELOC_PPC_DTPMOD
:
5890 case BFD_RELOC_PPC_TPREL16
:
5891 case BFD_RELOC_PPC_TPREL16_LO
:
5892 case BFD_RELOC_PPC_TPREL16_HI
:
5893 case BFD_RELOC_PPC_TPREL16_HA
:
5894 case BFD_RELOC_PPC_TPREL
:
5895 case BFD_RELOC_PPC_DTPREL16
:
5896 case BFD_RELOC_PPC_DTPREL16_LO
:
5897 case BFD_RELOC_PPC_DTPREL16_HI
:
5898 case BFD_RELOC_PPC_DTPREL16_HA
:
5899 case BFD_RELOC_PPC_DTPREL
:
5900 case BFD_RELOC_PPC_GOT_TLSGD16
:
5901 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5902 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5903 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5904 case BFD_RELOC_PPC_GOT_TLSLD16
:
5905 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5906 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5907 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5908 case BFD_RELOC_PPC_GOT_TPREL16
:
5909 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5910 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5911 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5912 case BFD_RELOC_PPC_GOT_DTPREL16
:
5913 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5914 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5915 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5916 case BFD_RELOC_PPC64_TPREL16_DS
:
5917 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5918 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5919 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5920 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5921 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5922 case BFD_RELOC_PPC64_DTPREL16_DS
:
5923 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5924 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5925 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5926 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5927 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5928 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5931 /* Because SDA21 modifies the register field, the size is set to 4
5932 bytes, rather than 2, so offset it here appropriately. */
5933 case BFD_RELOC_PPC_EMB_SDA21
:
5937 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5938 + ((target_big_endian
) ? 2 : 0),
5945 /* This can occur if there is a bug in the input assembler, eg:
5946 ".byte <undefined_symbol> - ." */
5948 as_bad (_("Unable to handle reference to symbol %s"),
5949 S_GET_NAME (fixP
->fx_addsy
));
5951 as_bad (_("Unable to resolve expression"));
5955 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5959 case BFD_RELOC_24_PLT_PCREL
:
5960 case BFD_RELOC_PPC_LOCAL24PC
:
5961 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5969 /* Fetch the instruction, insert the fully resolved operand
5970 value, and stuff the instruction back again. */
5971 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5972 if (target_big_endian
)
5973 insn
= bfd_getb32 ((unsigned char *) where
);
5975 insn
= bfd_getl32 ((unsigned char *) where
);
5976 if ((value
& 3) != 0)
5977 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5978 _("must branch to an address a multiple of 4"));
5979 if ((offsetT
) value
< -0x40000000
5980 || (offsetT
) value
>= 0x40000000)
5981 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5982 _("@local or @plt branch destination is too far away, %ld bytes"),
5984 insn
= insn
| (value
& 0x03fffffc);
5985 if (target_big_endian
)
5986 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5988 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5992 case BFD_RELOC_VTABLE_INHERIT
:
5995 && !S_IS_DEFINED (fixP
->fx_addsy
)
5996 && !S_IS_WEAK (fixP
->fx_addsy
))
5997 S_SET_WEAK (fixP
->fx_addsy
);
6000 case BFD_RELOC_VTABLE_ENTRY
:
6005 /* Generated by reference to `sym@tocbase'. The sym is
6006 ignored by the linker. */
6007 case BFD_RELOC_PPC64_TOC
:
6013 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6020 fixP
->fx_addnumber
= value
;
6022 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6023 from the section contents. If we are going to be emitting a reloc
6024 then the section contents are immaterial, so don't warn if they
6025 happen to overflow. Leave such warnings to ld. */
6027 fixP
->fx_no_overflow
= 1;
6029 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6030 fixP
->fx_addnumber
= 0;
6034 fixP
->fx_addnumber
= 0;
6036 /* We want to use the offset within the data segment of the
6037 symbol, not the actual VMA of the symbol. */
6038 fixP
->fx_addnumber
=
6039 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
6045 /* Generate a reloc for a fixup. */
6048 tc_gen_reloc (seg
, fixp
)
6049 asection
*seg ATTRIBUTE_UNUSED
;
6054 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6056 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6057 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6058 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6059 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6060 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6062 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6063 _("reloc %d not supported by object file format"),
6064 (int) fixp
->fx_r_type
);
6067 reloc
->addend
= fixp
->fx_addnumber
;
6073 ppc_cfi_frame_initial_instructions ()
6075 cfi_add_CFA_def_cfa (1, 0);
6079 tc_ppc_regname_to_dw2regnum (const char *regname
)
6081 unsigned int regnum
= -1;
6085 static struct { char *name
; int dw2regnum
; } regnames
[] =
6087 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6088 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6089 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6090 { "spe_acc", 111 }, { "spefscr", 112 }
6093 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6094 if (strcmp (regnames
[i
].name
, regname
) == 0)
6095 return regnames
[i
].dw2regnum
;
6097 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6099 p
= regname
+ 1 + (regname
[1] == '.');
6100 regnum
= strtoul (p
, &q
, 10);
6101 if (p
== q
|| *q
|| regnum
>= 32)
6103 if (regname
[0] == 'f')
6105 else if (regname
[0] == 'v')
6108 else if (regname
[0] == 'c' && regname
[1] == 'r')
6110 p
= regname
+ 2 + (regname
[2] == '.');
6111 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6113 regnum
= p
[0] - '0' + 68;