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
, "altivec") == 0)
864 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
866 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
868 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
870 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
871 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
872 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
875 else if (strcmp (arg
, "spe") == 0)
878 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
880 ppc_cpu
|= PPC_OPCODE_SPE
;
882 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
884 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
886 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
888 else if (strcmp (arg
, "ppc64bridge") == 0)
890 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
891 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
893 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
894 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
896 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
898 /* -mbooke64 means enable 64-bit BookE support. */
899 else if (strcmp (arg
, "booke64") == 0)
901 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
902 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
904 else if (strcmp (arg
, "power4") == 0)
906 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
909 else if (strcmp (arg
, "power5") == 0)
911 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
912 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
913 | PPC_OPCODE_POWER5
);
915 /* -mcom means assemble for the common intersection between Power
916 and PowerPC. At present, we just allow the union, rather
917 than the intersection. */
918 else if (strcmp (arg
, "com") == 0)
919 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
920 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
921 else if (strcmp (arg
, "any") == 0)
922 ppc_cpu
|= PPC_OPCODE_ANY
;
930 md_parse_option (c
, arg
)
937 /* -u means that any undefined symbols should be treated as
938 external, which is the default for gas anyhow. */
943 /* Solaris as takes -le (presumably for little endian). For completeness
944 sake, recognize -be also. */
945 if (strcmp (arg
, "e") == 0)
947 target_big_endian
= 0;
948 set_target_endian
= 1;
956 if (strcmp (arg
, "e") == 0)
958 target_big_endian
= 1;
959 set_target_endian
= 1;
967 /* Recognize -K PIC. */
968 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
971 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
979 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
981 if (strcmp (arg
, "64") == 0)
986 as_fatal (_("%s unsupported"), "-a64");
989 else if (strcmp (arg
, "32") == 0)
999 else if (strcmp (arg
, "regnames") == 0)
1002 else if (strcmp (arg
, "no-regnames") == 0)
1003 reg_names_p
= FALSE
;
1006 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1007 that require relocation. */
1008 else if (strcmp (arg
, "relocatable") == 0)
1010 shlib
= SHLIB_MRELOCATABLE
;
1011 ppc_flags
|= EF_PPC_RELOCATABLE
;
1014 else if (strcmp (arg
, "relocatable-lib") == 0)
1016 shlib
= SHLIB_MRELOCATABLE
;
1017 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1020 /* -memb, set embedded bit. */
1021 else if (strcmp (arg
, "emb") == 0)
1022 ppc_flags
|= EF_PPC_EMB
;
1024 /* -mlittle/-mbig set the endianess. */
1025 else if (strcmp (arg
, "little") == 0
1026 || strcmp (arg
, "little-endian") == 0)
1028 target_big_endian
= 0;
1029 set_target_endian
= 1;
1032 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1034 target_big_endian
= 1;
1035 set_target_endian
= 1;
1038 else if (strcmp (arg
, "solaris") == 0)
1041 ppc_comment_chars
= ppc_solaris_comment_chars
;
1044 else if (strcmp (arg
, "no-solaris") == 0)
1047 ppc_comment_chars
= ppc_eabi_comment_chars
;
1052 as_bad (_("invalid switch -m%s"), arg
);
1058 /* -V: SVR4 argument to print version ID. */
1060 print_version_id ();
1063 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1064 should be emitted or not. FIXME: Not implemented. */
1068 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1069 rather than .stabs.excl, which is ignored by the linker.
1070 FIXME: Not implemented. */
1086 md_show_usage (stream
)
1089 fprintf (stream
, _("\
1091 -a32 generate ELF32/XCOFF32\n\
1092 -a64 generate ELF64/XCOFF64\n\
1094 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1095 -mpwr generate code for POWER (RIOS1)\n\
1096 -m601 generate code for PowerPC 601\n\
1097 -mppc, -mppc32, -m603, -m604\n\
1098 generate code for PowerPC 603/604\n\
1099 -m403, -m405 generate code for PowerPC 403/405\n\
1100 -m440 generate code for PowerPC 440\n\
1101 -m7400, -m7410, -m7450, -m7455\n\
1102 generate code For PowerPC 7400/7410/7450/7455\n"));
1103 fprintf (stream
, _("\
1104 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1105 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1106 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1107 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1108 -mpower4 generate code for Power4 architecture\n\
1109 -mpower5 generate code for Power5 architecture\n\
1110 -mcom generate code Power/PowerPC common instructions\n\
1111 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1112 fprintf (stream
, _("\
1113 -maltivec generate code for AltiVec\n\
1114 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1115 -mspe generate code for Motorola SPE instructions\n\
1116 -mregnames Allow symbolic names for registers\n\
1117 -mno-regnames Do not allow symbolic names for registers\n"));
1119 fprintf (stream
, _("\
1120 -mrelocatable support for GCC's -mrelocatble option\n\
1121 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1122 -memb set PPC_EMB bit in ELF flags\n\
1123 -mlittle, -mlittle-endian, -l, -le\n\
1124 generate code for a little endian machine\n\
1125 -mbig, -mbig-endian, -b, -be\n\
1126 generate code for a big endian machine\n\
1127 -msolaris generate code for Solaris\n\
1128 -mno-solaris do not generate code for Solaris\n\
1129 -V print assembler version number\n\
1130 -Qy, -Qn ignored\n"));
1134 /* Set ppc_cpu if it is not already set. */
1139 const char *default_os
= TARGET_OS
;
1140 const char *default_cpu
= TARGET_CPU
;
1142 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1145 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1146 else if (strncmp (default_os
, "aix", 3) == 0
1147 && default_os
[3] >= '4' && default_os
[3] <= '9')
1148 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1149 else if (strncmp (default_os
, "aix3", 4) == 0)
1150 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1151 else if (strcmp (default_cpu
, "rs6000") == 0)
1152 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1153 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1155 if (default_cpu
[7] == '6' && default_cpu
[8] == '4')
1156 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1158 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1161 as_fatal (_("Unknown default cpu = %s, os = %s"),
1162 default_cpu
, default_os
);
1166 /* Figure out the BFD architecture to use. This function and ppc_mach
1167 are called well before md_begin, when the output file is opened. */
1169 enum bfd_architecture
1172 const char *default_cpu
= TARGET_CPU
;
1175 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1176 return bfd_arch_powerpc
;
1177 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1178 return bfd_arch_rs6000
;
1179 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1181 if (strcmp (default_cpu
, "rs6000") == 0)
1182 return bfd_arch_rs6000
;
1183 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1184 return bfd_arch_powerpc
;
1187 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1188 return bfd_arch_unknown
;
1195 return bfd_mach_ppc64
;
1196 else if (ppc_arch () == bfd_arch_rs6000
)
1197 return bfd_mach_rs6k
;
1199 return bfd_mach_ppc
;
1203 ppc_target_format ()
1207 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1209 return "xcoff-powermac";
1212 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1214 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1220 return "elf32-powerpc-vxworks";
1222 return (target_big_endian
1223 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1224 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1229 /* Insert opcodes and macros into hash tables. Called at startup and
1233 ppc_setup_opcodes (void)
1235 register const struct powerpc_opcode
*op
;
1236 const struct powerpc_opcode
*op_end
;
1237 const struct powerpc_macro
*macro
;
1238 const struct powerpc_macro
*macro_end
;
1239 bfd_boolean dup_insn
= FALSE
;
1241 if (ppc_hash
!= NULL
)
1242 hash_die (ppc_hash
);
1243 if (ppc_macro_hash
!= NULL
)
1244 hash_die (ppc_macro_hash
);
1246 /* Insert the opcodes into a hash table. */
1247 ppc_hash
= hash_new ();
1249 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1250 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1252 know ((op
->opcode
& op
->mask
) == op
->opcode
);
1254 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1255 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1256 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1257 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1258 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1259 /* Certain instructions (eg: extsw) do not exist in the
1260 32-bit BookE instruction set, but they do exist in the
1261 64-bit BookE instruction set, and other PPC instruction
1262 sets. Check to see if the opcode has the BOOKE64 flag set.
1263 If it does make sure that the target CPU is not the BookE32. */
1264 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1265 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1266 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1267 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1268 || ((op
->flags
& PPC_OPCODE_POWER4
)
1269 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1270 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1271 || ((op
->flags
& PPC_OPCODE_POWER5
)
1272 == (ppc_cpu
& PPC_OPCODE_POWER5
))))
1276 retval
= hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1279 /* Ignore Power duplicates for -m601. */
1280 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1281 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1284 as_bad (_("Internal assembler error for instruction %s"),
1291 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1292 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1293 hash_insert (ppc_hash
, op
->name
, (PTR
) op
);
1295 /* Insert the macros into a hash table. */
1296 ppc_macro_hash
= hash_new ();
1298 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1299 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1301 if ((macro
->flags
& ppc_cpu
) != 0)
1305 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (PTR
) macro
);
1306 if (retval
!= (const char *) NULL
)
1308 as_bad (_("Internal assembler error for macro %s"), macro
->name
);
1318 /* This function is called when the assembler starts up. It is called
1319 after the options have been parsed and the output file has been
1327 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1330 /* Set the ELF flags if desired. */
1331 if (ppc_flags
&& !msolaris
)
1332 bfd_set_private_flags (stdoutput
, ppc_flags
);
1335 ppc_setup_opcodes ();
1337 /* Tell the main code what the endianness is if it is not overridden
1339 if (!set_target_endian
)
1341 set_target_endian
= 1;
1342 target_big_endian
= PPC_BIG_ENDIAN
;
1346 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1348 /* Create dummy symbols to serve as initial csects. This forces the
1349 text csects to precede the data csects. These symbols will not
1351 ppc_text_csects
= symbol_make ("dummy\001");
1352 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1353 ppc_data_csects
= symbol_make ("dummy\001");
1354 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1359 ppc_current_section
= text_section
;
1360 ppc_previous_section
= 0;
1369 if (ppc_apuinfo_list
== NULL
)
1372 /* Ok, so write the section info out. We have this layout:
1376 0 8 length of "APUinfo\0"
1377 4 (n*4) number of APU's (4 bytes each)
1380 20 APU#1 first APU's info
1381 24 APU#2 second APU's info
1386 asection
*seg
= now_seg
;
1387 subsegT subseg
= now_subseg
;
1388 asection
*apuinfo_secp
= (asection
*) NULL
;
1391 /* Create the .PPC.EMB.apuinfo section. */
1392 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1393 bfd_set_section_flags (stdoutput
,
1395 SEC_HAS_CONTENTS
| SEC_READONLY
);
1398 md_number_to_chars (p
, (valueT
) 8, 4);
1401 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1404 md_number_to_chars (p
, (valueT
) 2, 4);
1407 strcpy (p
, "APUinfo");
1409 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1412 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1415 frag_align (2, 0, 0);
1417 /* We probably can't restore the current segment, for there likely
1420 subseg_set (seg
, subseg
);
1425 /* Insert an operand value into an instruction. */
1427 static unsigned long
1428 ppc_insert_operand (insn
, operand
, val
, file
, line
)
1430 const struct powerpc_operand
*operand
;
1435 if (operand
->bits
!= 32)
1440 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1442 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) != 0)
1443 max
= (1 << operand
->bits
) - 1;
1445 max
= (1 << (operand
->bits
- 1)) - 1;
1446 min
= - (1 << (operand
->bits
- 1));
1450 /* Some people write 32 bit hex constants with the sign
1451 extension done by hand. This shouldn't really be
1452 valid, but, to permit this code to assemble on a 64
1453 bit host, we sign extend the 32 bit value. */
1455 && (val
& (offsetT
) 0x80000000) != 0
1456 && (val
& (offsetT
) 0xffffffff) == val
)
1465 max
= (1 << operand
->bits
) - 1;
1469 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1474 if (test
< (offsetT
) min
|| test
> (offsetT
) max
)
1475 as_bad_value_out_of_range (_("operand"), test
, (offsetT
) min
, (offsetT
) max
, file
, line
);
1478 if (operand
->insert
)
1483 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1484 if (errmsg
!= (const char *) NULL
)
1485 as_bad_where (file
, line
, errmsg
);
1488 insn
|= (((long) val
& ((1 << operand
->bits
) - 1))
1496 /* Parse @got, etc. and return the desired relocation. */
1497 static bfd_reloc_code_real_type
1498 ppc_elf_suffix (str_p
, exp_p
)
1504 unsigned int length
: 8;
1505 unsigned int valid32
: 1;
1506 unsigned int valid64
: 1;
1515 const struct map_bfd
*ptr
;
1517 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1518 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1519 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1521 static const struct map_bfd mapping
[] = {
1522 MAP ("l", BFD_RELOC_LO16
),
1523 MAP ("h", BFD_RELOC_HI16
),
1524 MAP ("ha", BFD_RELOC_HI16_S
),
1525 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1526 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1527 MAP ("got", BFD_RELOC_16_GOTOFF
),
1528 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1529 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1530 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1531 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1532 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1533 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1534 MAP ("copy", BFD_RELOC_PPC_COPY
),
1535 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1536 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1537 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1538 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1539 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1540 MAP ("tls", BFD_RELOC_PPC_TLS
),
1541 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1542 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1543 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1544 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1545 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1546 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1547 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1548 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1549 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1550 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1551 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1552 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1553 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1554 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1555 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1556 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1557 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1558 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1559 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1560 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1561 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1562 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1563 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1564 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1565 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1566 MAP32 ("fixup", BFD_RELOC_CTOR
),
1567 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1568 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1569 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1570 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1571 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1572 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1573 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1574 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1575 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1576 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1577 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1578 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1579 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1580 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1581 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1582 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1583 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1584 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1585 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1586 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1587 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1588 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1589 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1590 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1591 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1592 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1593 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1594 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1595 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1596 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1597 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1598 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1599 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1600 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1601 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1602 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1603 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1604 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1605 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1606 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1607 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1611 return BFD_RELOC_UNUSED
;
1613 for (ch
= *str
, str2
= ident
;
1614 (str2
< ident
+ sizeof (ident
) - 1
1615 && (ISALNUM (ch
) || ch
== '@'));
1618 *str2
++ = TOLOWER (ch
);
1625 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1626 if (ch
== ptr
->string
[0]
1627 && len
== ptr
->length
1628 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1629 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1631 int reloc
= ptr
->reloc
;
1634 if (exp_p
->X_add_number
!= 0
1635 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1636 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1637 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1638 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1639 as_warn (_("identifier+constant@got means identifier@got+constant"));
1641 /* Now check for identifier@suffix+constant. */
1642 if (*str
== '-' || *str
== '+')
1644 char *orig_line
= input_line_pointer
;
1645 expressionS new_exp
;
1647 input_line_pointer
= str
;
1648 expression (&new_exp
);
1649 if (new_exp
.X_op
== O_constant
)
1651 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1652 str
= input_line_pointer
;
1655 if (&input_line_pointer
!= str_p
)
1656 input_line_pointer
= orig_line
;
1660 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1661 && exp_p
->X_op
== O_symbol
1662 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1664 /* Change the symbol so that the dummy .TOC. symbol can be
1665 omitted from the object file. */
1666 exp_p
->X_add_symbol
= &abs_symbol
;
1669 return (bfd_reloc_code_real_type
) reloc
;
1672 return BFD_RELOC_UNUSED
;
1675 /* Like normal .long/.short/.word, except support @got, etc.
1676 Clobbers input_line_pointer, checks end-of-line. */
1678 ppc_elf_cons (nbytes
)
1679 register int nbytes
; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1682 bfd_reloc_code_real_type reloc
;
1684 if (is_it_end_of_statement ())
1686 demand_empty_rest_of_line ();
1693 if (exp
.X_op
== O_symbol
1694 && *input_line_pointer
== '@'
1695 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1696 &exp
)) != BFD_RELOC_UNUSED
)
1698 reloc_howto_type
*reloc_howto
;
1701 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1702 size
= bfd_get_reloc_size (reloc_howto
);
1706 as_bad (_("%s relocations do not fit in %d bytes\n"),
1707 reloc_howto
->name
, nbytes
);
1714 p
= frag_more (nbytes
);
1716 if (target_big_endian
)
1717 offset
= nbytes
- size
;
1718 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1723 emit_expr (&exp
, (unsigned int) nbytes
);
1725 while (*input_line_pointer
++ == ',');
1727 /* Put terminator back into stream. */
1728 input_line_pointer
--;
1729 demand_empty_rest_of_line ();
1732 /* Solaris pseduo op to change to the .rodata section. */
1737 char *save_line
= input_line_pointer
;
1738 static char section
[] = ".rodata\n";
1740 /* Just pretend this is .section .rodata */
1741 input_line_pointer
= section
;
1742 obj_elf_section (xxx
);
1744 input_line_pointer
= save_line
;
1747 /* Pseudo op to make file scope bss items. */
1750 int xxx ATTRIBUTE_UNUSED
;
1752 register char *name
;
1756 register symbolS
*symbolP
;
1763 name
= input_line_pointer
;
1764 c
= get_symbol_end ();
1766 /* just after name is now '\0'. */
1767 p
= input_line_pointer
;
1770 if (*input_line_pointer
!= ',')
1772 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1773 ignore_rest_of_line ();
1777 input_line_pointer
++; /* skip ',' */
1778 if ((size
= get_absolute_expression ()) < 0)
1780 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1781 ignore_rest_of_line ();
1785 /* The third argument to .lcomm is the alignment. */
1786 if (*input_line_pointer
!= ',')
1790 ++input_line_pointer
;
1791 align
= get_absolute_expression ();
1794 as_warn (_("ignoring bad alignment"));
1800 symbolP
= symbol_find_or_make (name
);
1803 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1805 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1806 S_GET_NAME (symbolP
));
1807 ignore_rest_of_line ();
1811 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1813 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1814 S_GET_NAME (symbolP
),
1815 (long) S_GET_VALUE (symbolP
),
1818 ignore_rest_of_line ();
1824 old_subsec
= now_subseg
;
1827 /* Convert to a power of 2 alignment. */
1828 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1831 as_bad (_("Common alignment not a power of 2"));
1832 ignore_rest_of_line ();
1839 record_alignment (bss_section
, align2
);
1840 subseg_set (bss_section
, 0);
1842 frag_align (align2
, 0, 0);
1843 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1844 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1845 symbol_set_frag (symbolP
, frag_now
);
1846 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1849 S_SET_SIZE (symbolP
, size
);
1850 S_SET_SEGMENT (symbolP
, bss_section
);
1851 subseg_set (old_sec
, old_subsec
);
1852 demand_empty_rest_of_line ();
1855 /* Validate any relocations emitted for -mrelocatable, possibly adding
1856 fixups for word relocations in writable segments, so we can adjust
1859 ppc_elf_validate_fix (fixp
, seg
)
1863 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1872 case SHLIB_MRELOCATABLE
:
1873 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1874 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1875 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1876 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1877 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1878 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1879 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1880 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1881 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1882 && (seg
->flags
& SEC_LOAD
) != 0
1883 && strcmp (segment_name (seg
), ".got2") != 0
1884 && strcmp (segment_name (seg
), ".dtors") != 0
1885 && strcmp (segment_name (seg
), ".ctors") != 0
1886 && strcmp (segment_name (seg
), ".fixup") != 0
1887 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1888 && strcmp (segment_name (seg
), ".eh_frame") != 0
1889 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1891 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1892 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1894 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1895 _("Relocation cannot be done when using -mrelocatable"));
1902 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1903 function descriptor sym if the corresponding code sym is used. */
1906 ppc_frob_file_before_adjust ()
1914 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1921 name
= S_GET_NAME (symp
);
1925 if (! S_IS_WEAK (symp
)
1926 || S_IS_DEFINED (symp
))
1929 len
= strlen (name
) + 1;
1930 dotname
= xmalloc (len
+ 1);
1932 memcpy (dotname
+ 1, name
, len
);
1933 dotsym
= symbol_find (dotname
);
1935 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1936 || symbol_used_in_reloc_p (dotsym
)))
1937 symbol_mark_used (symp
);
1941 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
1943 && bfd_section_size (stdoutput
, toc
) > 0x10000)
1944 as_warn (_("TOC section size exceeds 64k"));
1946 /* Don't emit .TOC. symbol. */
1947 symp
= symbol_find (".TOC.");
1949 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
1951 #endif /* OBJ_ELF */
1956 * Summary of parse_toc_entry.
1958 * in: Input_line_pointer points to the '[' in one of:
1960 * [toc] [tocv] [toc32] [toc64]
1962 * Anything else is an error of one kind or another.
1965 * return value: success or failure
1966 * toc_kind: kind of toc reference
1967 * input_line_pointer:
1968 * success: first char after the ']'
1969 * failure: unchanged
1973 * [toc] - rv == success, toc_kind = default_toc
1974 * [tocv] - rv == success, toc_kind = data_in_toc
1975 * [toc32] - rv == success, toc_kind = must_be_32
1976 * [toc64] - rv == success, toc_kind = must_be_64
1980 enum toc_size_qualifier
1982 default_toc
, /* The toc cell constructed should be the system default size */
1983 data_in_toc
, /* This is a direct reference to a toc cell */
1984 must_be_32
, /* The toc cell constructed must be 32 bits wide */
1985 must_be_64
/* The toc cell constructed must be 64 bits wide */
1989 parse_toc_entry (toc_kind
)
1990 enum toc_size_qualifier
*toc_kind
;
1995 enum toc_size_qualifier t
;
1997 /* Save the input_line_pointer. */
1998 start
= input_line_pointer
;
2000 /* Skip over the '[' , and whitespace. */
2001 ++input_line_pointer
;
2004 /* Find the spelling of the operand. */
2005 toc_spec
= input_line_pointer
;
2006 c
= get_symbol_end ();
2008 if (strcmp (toc_spec
, "toc") == 0)
2012 else if (strcmp (toc_spec
, "tocv") == 0)
2016 else if (strcmp (toc_spec
, "toc32") == 0)
2020 else if (strcmp (toc_spec
, "toc64") == 0)
2026 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2027 *input_line_pointer
= c
;
2028 input_line_pointer
= start
;
2032 /* Now find the ']'. */
2033 *input_line_pointer
= c
;
2035 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2036 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2040 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2041 input_line_pointer
= start
;
2052 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2054 ppc_apuinfo_section_add (apu
, version
)
2055 unsigned int apu
, version
;
2059 /* Check we don't already exist. */
2060 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2061 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2064 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2066 if (ppc_apuinfo_num_alloc
== 0)
2068 ppc_apuinfo_num_alloc
= 4;
2069 ppc_apuinfo_list
= (unsigned long *)
2070 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2074 ppc_apuinfo_num_alloc
+= 4;
2075 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2076 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2079 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2085 /* We need to keep a list of fixups. We can't simply generate them as
2086 we go, because that would require us to first create the frag, and
2087 that would screw up references to ``.''. */
2093 bfd_reloc_code_real_type reloc
;
2096 #define MAX_INSN_FIXUPS (5)
2098 /* This routine is called for each instruction to be assembled. */
2105 const struct powerpc_opcode
*opcode
;
2107 const unsigned char *opindex_ptr
;
2111 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2117 bfd_reloc_code_real_type reloc
;
2120 /* Get the opcode. */
2121 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2126 /* Look up the opcode in the hash table. */
2127 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2128 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2130 const struct powerpc_macro
*macro
;
2132 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2133 if (macro
== (const struct powerpc_macro
*) NULL
)
2134 as_bad (_("Unrecognized opcode: `%s'"), str
);
2136 ppc_macro (s
, macro
);
2141 insn
= opcode
->opcode
;
2144 while (ISSPACE (*str
))
2147 /* PowerPC operands are just expressions. The only real issue is
2148 that a few operand types are optional. All cases which might use
2149 an optional operand separate the operands only with commas (in some
2150 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2151 have optional operands). Most instructions with optional operands
2152 have only one. Those that have more than one optional operand can
2153 take either all their operands or none. So, before we start seriously
2154 parsing the operands, we check to see if we have optional operands,
2155 and if we do, we count the number of commas to see which operands
2156 have been omitted. */
2158 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2160 const struct powerpc_operand
*operand
;
2162 operand
= &powerpc_operands
[*opindex_ptr
];
2163 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2165 unsigned int opcount
;
2166 unsigned int num_operands_expected
;
2169 /* There is an optional operand. Count the number of
2170 commas in the input line. */
2177 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2184 /* Compute the number of expected operands.
2185 Do not count fake operands. */
2186 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2187 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2188 ++ num_operands_expected
;
2190 /* If there are fewer operands in the line then are called
2191 for by the instruction, we want to skip the optional
2193 if (opcount
< num_operands_expected
)
2200 /* Gather the operands. */
2204 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2206 const struct powerpc_operand
*operand
;
2212 if (next_opindex
== 0)
2213 operand
= &powerpc_operands
[*opindex_ptr
];
2216 operand
= &powerpc_operands
[next_opindex
];
2221 /* If this is a fake operand, then we do not expect anything
2223 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2225 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2226 if (errmsg
!= (const char *) NULL
)
2231 /* If this is an optional operand, and we are skipping it, just
2233 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2236 if (operand
->insert
)
2238 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2239 if (errmsg
!= (const char *) NULL
)
2242 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2243 next_opindex
= *opindex_ptr
+ 1;
2247 /* Gather the operand. */
2248 hold
= input_line_pointer
;
2249 input_line_pointer
= str
;
2252 if (*input_line_pointer
== '[')
2254 /* We are expecting something like the second argument here:
2256 * lwz r4,[toc].GS.0.static_int(rtoc)
2257 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2258 * The argument following the `]' must be a symbol name, and the
2259 * register must be the toc register: 'rtoc' or '2'
2261 * The effect is to 0 as the displacement field
2262 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2263 * the appropriate variation) reloc against it based on the symbol.
2264 * The linker will build the toc, and insert the resolved toc offset.
2267 * o The size of the toc entry is currently assumed to be
2268 * 32 bits. This should not be assumed to be a hard coded
2270 * o In an effort to cope with a change from 32 to 64 bits,
2271 * there are also toc entries that are specified to be
2272 * either 32 or 64 bits:
2273 * lwz r4,[toc32].GS.0.static_int(rtoc)
2274 * lwz r4,[toc64].GS.0.static_int(rtoc)
2275 * These demand toc entries of the specified size, and the
2276 * instruction probably requires it.
2280 enum toc_size_qualifier toc_kind
;
2281 bfd_reloc_code_real_type toc_reloc
;
2283 /* Go parse off the [tocXX] part. */
2284 valid_toc
= parse_toc_entry (&toc_kind
);
2288 /* Note: message has already been issued.
2289 FIXME: what sort of recovery should we do?
2290 demand_rest_of_line (); return; ? */
2293 /* Now get the symbol following the ']'. */
2299 /* In this case, we may not have seen the symbol yet,
2300 since it is allowed to appear on a .extern or .globl
2301 or just be a label in the .data section. */
2302 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2305 /* 1. The symbol must be defined and either in the toc
2306 section, or a global.
2307 2. The reloc generated must have the TOCDEFN flag set
2308 in upper bit mess of the reloc type.
2309 FIXME: It's a little confusing what the tocv
2310 qualifier can be used for. At the very least, I've
2311 seen three uses, only one of which I'm sure I can
2313 if (ex
.X_op
== O_symbol
)
2315 assert (ex
.X_add_symbol
!= NULL
);
2316 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2319 as_bad (_("[tocv] symbol is not a toc symbol"));
2323 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2326 /* FIXME: these next two specifically specify 32/64 bit
2327 toc entries. We don't support them today. Is this
2328 the right way to say that? */
2329 toc_reloc
= BFD_RELOC_UNUSED
;
2330 as_bad (_("Unimplemented toc32 expression modifier"));
2333 /* FIXME: see above. */
2334 toc_reloc
= BFD_RELOC_UNUSED
;
2335 as_bad (_("Unimplemented toc64 expression modifier"));
2339 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2345 /* We need to generate a fixup for this expression. */
2346 if (fc
>= MAX_INSN_FIXUPS
)
2347 as_fatal (_("too many fixups"));
2349 fixups
[fc
].reloc
= toc_reloc
;
2350 fixups
[fc
].exp
= ex
;
2351 fixups
[fc
].opindex
= *opindex_ptr
;
2354 /* Ok. We've set up the fixup for the instruction. Now make it
2355 look like the constant 0 was found here. */
2357 ex
.X_op
= O_constant
;
2358 ex
.X_add_number
= 0;
2359 ex
.X_add_symbol
= NULL
;
2360 ex
.X_op_symbol
= NULL
;
2366 if (! register_name (&ex
))
2368 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2375 str
= input_line_pointer
;
2376 input_line_pointer
= hold
;
2378 if (ex
.X_op
== O_illegal
)
2379 as_bad (_("illegal operand"));
2380 else if (ex
.X_op
== O_absent
)
2381 as_bad (_("missing operand"));
2382 else if (ex
.X_op
== O_register
)
2384 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2387 else if (ex
.X_op
== O_constant
)
2390 /* Allow @HA, @L, @H on constants. */
2391 char *orig_str
= str
;
2393 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2400 case BFD_RELOC_LO16
:
2401 /* X_unsigned is the default, so if the user has done
2402 something which cleared it, we always produce a
2404 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2405 ex
.X_add_number
&= 0xffff;
2407 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2410 case BFD_RELOC_HI16
:
2411 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2412 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2414 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2417 case BFD_RELOC_HI16_S
:
2418 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2419 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2421 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2424 case BFD_RELOC_PPC64_HIGHER
:
2425 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2426 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2428 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2431 case BFD_RELOC_PPC64_HIGHER_S
:
2432 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2433 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2435 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2438 case BFD_RELOC_PPC64_HIGHEST
:
2439 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2440 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2442 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2445 case BFD_RELOC_PPC64_HIGHEST_S
:
2446 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2447 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2449 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2452 #endif /* OBJ_ELF */
2453 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2457 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2459 /* Some TLS tweaks. */
2464 case BFD_RELOC_PPC_TLS
:
2465 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2468 /* We'll only use the 32 (or 64) bit form of these relocations
2469 in constants. Instructions get the 16 bit form. */
2470 case BFD_RELOC_PPC_DTPREL
:
2471 reloc
= BFD_RELOC_PPC_DTPREL16
;
2473 case BFD_RELOC_PPC_TPREL
:
2474 reloc
= BFD_RELOC_PPC_TPREL16
;
2478 /* For the absolute forms of branches, convert the PC
2479 relative form back into the absolute. */
2480 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2484 case BFD_RELOC_PPC_B26
:
2485 reloc
= BFD_RELOC_PPC_BA26
;
2487 case BFD_RELOC_PPC_B16
:
2488 reloc
= BFD_RELOC_PPC_BA16
;
2490 case BFD_RELOC_PPC_B16_BRTAKEN
:
2491 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2493 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2494 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2502 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2507 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2509 case BFD_RELOC_LO16
:
2510 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2512 case BFD_RELOC_16_GOTOFF
:
2513 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2515 case BFD_RELOC_LO16_GOTOFF
:
2516 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2518 case BFD_RELOC_LO16_PLTOFF
:
2519 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2521 case BFD_RELOC_16_BASEREL
:
2522 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2524 case BFD_RELOC_LO16_BASEREL
:
2525 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2527 case BFD_RELOC_PPC_TOC16
:
2528 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2530 case BFD_RELOC_PPC64_TOC16_LO
:
2531 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2533 case BFD_RELOC_PPC64_PLTGOT16
:
2534 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2536 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2537 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2539 case BFD_RELOC_PPC_DTPREL16
:
2540 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2542 case BFD_RELOC_PPC_DTPREL16_LO
:
2543 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2545 case BFD_RELOC_PPC_TPREL16
:
2546 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2548 case BFD_RELOC_PPC_TPREL16_LO
:
2549 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2551 case BFD_RELOC_PPC_GOT_DTPREL16
:
2552 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2553 case BFD_RELOC_PPC_GOT_TPREL16
:
2554 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2557 as_bad (_("unsupported relocation for DS offset field"));
2562 /* We need to generate a fixup for this expression. */
2563 if (fc
>= MAX_INSN_FIXUPS
)
2564 as_fatal (_("too many fixups"));
2565 fixups
[fc
].exp
= ex
;
2566 fixups
[fc
].opindex
= 0;
2567 fixups
[fc
].reloc
= reloc
;
2570 #endif /* OBJ_ELF */
2574 /* We need to generate a fixup for this expression. */
2575 if (fc
>= MAX_INSN_FIXUPS
)
2576 as_fatal (_("too many fixups"));
2577 fixups
[fc
].exp
= ex
;
2578 fixups
[fc
].opindex
= *opindex_ptr
;
2579 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2588 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2596 /* The call to expression should have advanced str past any
2599 && (endc
!= ',' || *str
!= '\0'))
2601 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2609 while (ISSPACE (*str
))
2613 as_bad (_("junk at end of line: `%s'"), str
);
2616 /* Do we need/want a APUinfo section? */
2617 if (ppc_cpu
& (PPC_OPCODE_SPE
2618 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2619 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2620 | PPC_OPCODE_RFMCI
))
2622 /* These are all version "1". */
2623 if (opcode
->flags
& PPC_OPCODE_SPE
)
2624 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2625 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2626 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2627 if (opcode
->flags
& PPC_OPCODE_EFS
)
2628 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2629 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2630 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2631 if (opcode
->flags
& PPC_OPCODE_PMR
)
2632 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2633 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2634 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2635 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2636 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2640 /* Write out the instruction. */
2642 addr_mod
= frag_now_fix () & 3;
2643 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2644 as_bad (_("instruction address is not a multiple of 4"));
2645 frag_now
->insn_addr
= addr_mod
;
2646 frag_now
->has_code
= 1;
2647 md_number_to_chars (f
, insn
, 4);
2650 dwarf2_emit_insn (4);
2653 /* Create any fixups. At this point we do not use a
2654 bfd_reloc_code_real_type, but instead just use the
2655 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2656 handle fixups for any operand type, although that is admittedly
2657 not a very exciting feature. We pick a BFD reloc type in
2659 for (i
= 0; i
< fc
; i
++)
2661 const struct powerpc_operand
*operand
;
2663 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2664 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2666 reloc_howto_type
*reloc_howto
;
2671 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2675 size
= bfd_get_reloc_size (reloc_howto
);
2676 offset
= target_big_endian
? (4 - size
) : 0;
2678 if (size
< 1 || size
> 4)
2681 fixP
= fix_new_exp (frag_now
,
2682 f
- frag_now
->fr_literal
+ offset
,
2685 reloc_howto
->pc_relative
,
2688 /* Turn off complaints that the addend is too large for things like
2690 switch (fixups
[i
].reloc
)
2692 case BFD_RELOC_16_GOTOFF
:
2693 case BFD_RELOC_PPC_TOC16
:
2694 case BFD_RELOC_LO16
:
2695 case BFD_RELOC_HI16
:
2696 case BFD_RELOC_HI16_S
:
2698 case BFD_RELOC_PPC64_HIGHER
:
2699 case BFD_RELOC_PPC64_HIGHER_S
:
2700 case BFD_RELOC_PPC64_HIGHEST
:
2701 case BFD_RELOC_PPC64_HIGHEST_S
:
2703 fixP
->fx_no_overflow
= 1;
2710 fix_new_exp (frag_now
,
2711 f
- frag_now
->fr_literal
,
2714 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2715 ((bfd_reloc_code_real_type
)
2716 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2720 /* Handle a macro. Gather all the operands, transform them as
2721 described by the macro, and call md_assemble recursively. All the
2722 operands are separated by commas; we don't accept parentheses
2723 around operands here. */
2726 ppc_macro (str
, macro
)
2728 const struct powerpc_macro
*macro
;
2739 /* Gather the users operands into the operands array. */
2744 if (count
>= sizeof operands
/ sizeof operands
[0])
2746 operands
[count
++] = s
;
2747 s
= strchr (s
, ',');
2748 if (s
== (char *) NULL
)
2753 if (count
!= macro
->operands
)
2755 as_bad (_("wrong number of operands"));
2759 /* Work out how large the string must be (the size is unbounded
2760 because it includes user input). */
2762 format
= macro
->format
;
2763 while (*format
!= '\0')
2772 arg
= strtol (format
+ 1, &send
, 10);
2773 know (send
!= format
&& arg
>= 0 && arg
< count
);
2774 len
+= strlen (operands
[arg
]);
2779 /* Put the string together. */
2780 complete
= s
= (char *) alloca (len
+ 1);
2781 format
= macro
->format
;
2782 while (*format
!= '\0')
2788 arg
= strtol (format
+ 1, &send
, 10);
2789 strcpy (s
, operands
[arg
]);
2796 /* Assemble the constructed instruction. */
2797 md_assemble (complete
);
2801 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2804 ppc_section_letter (letter
, ptr_msg
)
2811 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2816 ppc_section_word (str
, len
)
2820 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2827 ppc_section_type (str
, len
)
2831 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2838 ppc_section_flags (flags
, attr
, type
)
2843 if (type
== SHT_ORDERED
)
2844 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2846 if (attr
& SHF_EXCLUDE
)
2847 flags
|= SEC_EXCLUDE
;
2851 #endif /* OBJ_ELF */
2854 /* Pseudo-op handling. */
2856 /* The .byte pseudo-op. This is similar to the normal .byte
2857 pseudo-op, but it can also take a single ASCII string. */
2861 int ignore ATTRIBUTE_UNUSED
;
2863 if (*input_line_pointer
!= '\"')
2869 /* Gather characters. A real double quote is doubled. Unusual
2870 characters are not permitted. */
2871 ++input_line_pointer
;
2876 c
= *input_line_pointer
++;
2880 if (*input_line_pointer
!= '\"')
2882 ++input_line_pointer
;
2885 FRAG_APPEND_1_CHAR (c
);
2888 demand_empty_rest_of_line ();
2893 /* XCOFF specific pseudo-op handling. */
2895 /* This is set if we are creating a .stabx symbol, since we don't want
2896 to handle symbol suffixes for such symbols. */
2897 static bfd_boolean ppc_stab_symbol
;
2899 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2900 symbols in the .bss segment as though they were local common
2901 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2902 aligns .comm and .lcomm to 4 bytes. */
2908 asection
*current_seg
= now_seg
;
2909 subsegT current_subseg
= now_subseg
;
2915 symbolS
*lcomm_sym
= NULL
;
2919 name
= input_line_pointer
;
2920 endc
= get_symbol_end ();
2921 end_name
= input_line_pointer
;
2924 if (*input_line_pointer
!= ',')
2926 as_bad (_("missing size"));
2927 ignore_rest_of_line ();
2930 ++input_line_pointer
;
2932 size
= get_absolute_expression ();
2935 as_bad (_("negative size"));
2936 ignore_rest_of_line ();
2942 /* The third argument to .comm is the alignment. */
2943 if (*input_line_pointer
!= ',')
2947 ++input_line_pointer
;
2948 align
= get_absolute_expression ();
2951 as_warn (_("ignoring bad alignment"));
2966 /* The third argument to .lcomm appears to be the real local
2967 common symbol to create. References to the symbol named in
2968 the first argument are turned into references to the third
2970 if (*input_line_pointer
!= ',')
2972 as_bad (_("missing real symbol name"));
2973 ignore_rest_of_line ();
2976 ++input_line_pointer
;
2978 lcomm_name
= input_line_pointer
;
2979 lcomm_endc
= get_symbol_end ();
2981 lcomm_sym
= symbol_find_or_make (lcomm_name
);
2983 *input_line_pointer
= lcomm_endc
;
2987 sym
= symbol_find_or_make (name
);
2990 if (S_IS_DEFINED (sym
)
2991 || S_GET_VALUE (sym
) != 0)
2993 as_bad (_("attempt to redefine symbol"));
2994 ignore_rest_of_line ();
2998 record_alignment (bss_section
, align
);
3001 || ! S_IS_DEFINED (lcomm_sym
))
3010 S_SET_EXTERNAL (sym
);
3014 symbol_get_tc (lcomm_sym
)->output
= 1;
3015 def_sym
= lcomm_sym
;
3019 subseg_set (bss_section
, 1);
3020 frag_align (align
, 0, 0);
3022 symbol_set_frag (def_sym
, frag_now
);
3023 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3024 def_size
, (char *) NULL
);
3026 S_SET_SEGMENT (def_sym
, bss_section
);
3027 symbol_get_tc (def_sym
)->align
= align
;
3031 /* Align the size of lcomm_sym. */
3032 symbol_get_frag (lcomm_sym
)->fr_offset
=
3033 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3034 &~ ((1 << align
) - 1));
3035 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3036 symbol_get_tc (lcomm_sym
)->align
= align
;
3041 /* Make sym an offset from lcomm_sym. */
3042 S_SET_SEGMENT (sym
, bss_section
);
3043 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3044 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3045 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3048 subseg_set (current_seg
, current_subseg
);
3050 demand_empty_rest_of_line ();
3053 /* The .csect pseudo-op. This switches us into a different
3054 subsegment. The first argument is a symbol whose value is the
3055 start of the .csect. In COFF, csect symbols get special aux
3056 entries defined by the x_csect field of union internal_auxent. The
3057 optional second argument is the alignment (the default is 2). */
3061 int ignore ATTRIBUTE_UNUSED
;
3068 name
= input_line_pointer
;
3069 endc
= get_symbol_end ();
3071 sym
= symbol_find_or_make (name
);
3073 *input_line_pointer
= endc
;
3075 if (S_GET_NAME (sym
)[0] == '\0')
3077 /* An unnamed csect is assumed to be [PR]. */
3078 symbol_get_tc (sym
)->class = XMC_PR
;
3082 if (*input_line_pointer
== ',')
3084 ++input_line_pointer
;
3085 align
= get_absolute_expression ();
3088 ppc_change_csect (sym
, align
);
3090 demand_empty_rest_of_line ();
3093 /* Change to a different csect. */
3096 ppc_change_csect (sym
, align
)
3100 if (S_IS_DEFINED (sym
))
3101 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3111 /* This is a new csect. We need to look at the symbol class to
3112 figure out whether it should go in the text section or the
3116 switch (symbol_get_tc (sym
)->class)
3126 S_SET_SEGMENT (sym
, text_section
);
3127 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3128 ++ppc_text_subsegment
;
3129 list_ptr
= &ppc_text_csects
;
3139 if (ppc_toc_csect
!= NULL
3140 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3141 == ppc_data_subsegment
))
3143 S_SET_SEGMENT (sym
, data_section
);
3144 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3145 ++ppc_data_subsegment
;
3146 list_ptr
= &ppc_data_csects
;
3152 /* We set the obstack chunk size to a small value before
3153 changing subsegments, so that we don't use a lot of memory
3154 space for what may be a small section. */
3155 hold_chunksize
= chunksize
;
3158 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3159 symbol_get_tc (sym
)->subseg
);
3161 chunksize
= hold_chunksize
;
3164 ppc_after_toc_frag
= frag_now
;
3166 record_alignment (sec
, align
);
3168 frag_align_code (align
, 0);
3170 frag_align (align
, 0, 0);
3172 symbol_set_frag (sym
, frag_now
);
3173 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3175 symbol_get_tc (sym
)->align
= align
;
3176 symbol_get_tc (sym
)->output
= 1;
3177 symbol_get_tc (sym
)->within
= sym
;
3179 for (list
= *list_ptr
;
3180 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3181 list
= symbol_get_tc (list
)->next
)
3183 symbol_get_tc (list
)->next
= sym
;
3185 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3186 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3190 ppc_current_csect
= sym
;
3193 /* This function handles the .text and .data pseudo-ops. These
3194 pseudo-ops aren't really used by XCOFF; we implement them for the
3195 convenience of people who aren't used to XCOFF. */
3206 else if (type
== 'd')
3211 sym
= symbol_find_or_make (name
);
3213 ppc_change_csect (sym
, 2);
3215 demand_empty_rest_of_line ();
3218 /* This function handles the .section pseudo-op. This is mostly to
3219 give an error, since XCOFF only supports .text, .data and .bss, but
3220 we do permit the user to name the text or data section. */
3223 ppc_named_section (ignore
)
3224 int ignore ATTRIBUTE_UNUSED
;
3227 const char *real_name
;
3231 user_name
= input_line_pointer
;
3232 c
= get_symbol_end ();
3234 if (strcmp (user_name
, ".text") == 0)
3235 real_name
= ".text[PR]";
3236 else if (strcmp (user_name
, ".data") == 0)
3237 real_name
= ".data[RW]";
3240 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3241 *input_line_pointer
= c
;
3242 ignore_rest_of_line ();
3246 *input_line_pointer
= c
;
3248 sym
= symbol_find_or_make (real_name
);
3250 ppc_change_csect (sym
, 2);
3252 demand_empty_rest_of_line ();
3255 /* The .extern pseudo-op. We create an undefined symbol. */
3259 int ignore ATTRIBUTE_UNUSED
;
3264 name
= input_line_pointer
;
3265 endc
= get_symbol_end ();
3267 (void) symbol_find_or_make (name
);
3269 *input_line_pointer
= endc
;
3271 demand_empty_rest_of_line ();
3274 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3278 int ignore ATTRIBUTE_UNUSED
;
3284 name
= input_line_pointer
;
3285 endc
= get_symbol_end ();
3287 sym
= symbol_find_or_make (name
);
3289 *input_line_pointer
= endc
;
3291 symbol_get_tc (sym
)->output
= 1;
3293 demand_empty_rest_of_line ();
3296 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3297 although I don't know why it bothers. */
3301 int ignore ATTRIBUTE_UNUSED
;
3308 name
= input_line_pointer
;
3309 endc
= get_symbol_end ();
3311 sym
= symbol_find_or_make (name
);
3313 *input_line_pointer
= endc
;
3315 if (*input_line_pointer
!= ',')
3317 as_bad (_("missing rename string"));
3318 ignore_rest_of_line ();
3321 ++input_line_pointer
;
3323 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3325 demand_empty_rest_of_line ();
3328 /* The .stabx pseudo-op. This is similar to a normal .stabs
3329 pseudo-op, but slightly different. A sample is
3330 .stabx "main:F-1",.main,142,0
3331 The first argument is the symbol name to create. The second is the
3332 value, and the third is the storage class. The fourth seems to be
3333 always zero, and I am assuming it is the type. */
3337 int ignore ATTRIBUTE_UNUSED
;
3344 name
= demand_copy_C_string (&len
);
3346 if (*input_line_pointer
!= ',')
3348 as_bad (_("missing value"));
3351 ++input_line_pointer
;
3353 ppc_stab_symbol
= TRUE
;
3354 sym
= symbol_make (name
);
3355 ppc_stab_symbol
= FALSE
;
3357 symbol_get_tc (sym
)->real_name
= name
;
3359 (void) expression (&exp
);
3366 as_bad (_("illegal .stabx expression; zero assumed"));
3367 exp
.X_add_number
= 0;
3370 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3371 symbol_set_frag (sym
, &zero_address_frag
);
3375 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3376 symbol_set_value_expression (sym
, &exp
);
3380 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3381 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3386 /* The value is some complex expression. This will probably
3387 fail at some later point, but this is probably the right
3388 thing to do here. */
3389 symbol_set_value_expression (sym
, &exp
);
3393 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3394 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3396 if (*input_line_pointer
!= ',')
3398 as_bad (_("missing class"));
3401 ++input_line_pointer
;
3403 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3405 if (*input_line_pointer
!= ',')
3407 as_bad (_("missing type"));
3410 ++input_line_pointer
;
3412 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3414 symbol_get_tc (sym
)->output
= 1;
3416 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3418 symbol_get_tc (sym
)->within
= ppc_current_block
;
3423 .stabx "z",arrays_,133,0
3426 .comm arrays_,13768,3
3428 resolve_symbol_value will copy the exp's "within" into sym's when the
3429 offset is 0. Since this seems to be corner case problem,
3430 only do the correction for storage class C_STSYM. A better solution
3431 would be to have the tc field updated in ppc_symbol_new_hook. */
3433 if (exp
.X_op
== O_symbol
)
3435 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3439 if (exp
.X_op
!= O_symbol
3440 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3441 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3442 ppc_frob_label (sym
);
3445 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3446 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3447 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3448 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3451 demand_empty_rest_of_line ();
3454 /* The .function pseudo-op. This takes several arguments. The first
3455 argument seems to be the external name of the symbol. The second
3456 argument seems to be the label for the start of the function. gcc
3457 uses the same name for both. I have no idea what the third and
3458 fourth arguments are meant to be. The optional fifth argument is
3459 an expression for the size of the function. In COFF this symbol
3460 gets an aux entry like that used for a csect. */
3463 ppc_function (ignore
)
3464 int ignore ATTRIBUTE_UNUSED
;
3472 name
= input_line_pointer
;
3473 endc
= get_symbol_end ();
3475 /* Ignore any [PR] suffix. */
3476 name
= ppc_canonicalize_symbol_name (name
);
3477 s
= strchr (name
, '[');
3478 if (s
!= (char *) NULL
3479 && strcmp (s
+ 1, "PR]") == 0)
3482 ext_sym
= symbol_find_or_make (name
);
3484 *input_line_pointer
= endc
;
3486 if (*input_line_pointer
!= ',')
3488 as_bad (_("missing symbol name"));
3489 ignore_rest_of_line ();
3492 ++input_line_pointer
;
3494 name
= input_line_pointer
;
3495 endc
= get_symbol_end ();
3497 lab_sym
= symbol_find_or_make (name
);
3499 *input_line_pointer
= endc
;
3501 if (ext_sym
!= lab_sym
)
3505 exp
.X_op
= O_symbol
;
3506 exp
.X_add_symbol
= lab_sym
;
3507 exp
.X_op_symbol
= NULL
;
3508 exp
.X_add_number
= 0;
3510 symbol_set_value_expression (ext_sym
, &exp
);
3513 if (symbol_get_tc (ext_sym
)->class == -1)
3514 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3515 symbol_get_tc (ext_sym
)->output
= 1;
3517 if (*input_line_pointer
== ',')
3521 /* Ignore the third argument. */
3522 ++input_line_pointer
;
3523 expression (&ignore
);
3524 if (*input_line_pointer
== ',')
3526 /* Ignore the fourth argument. */
3527 ++input_line_pointer
;
3528 expression (&ignore
);
3529 if (*input_line_pointer
== ',')
3531 /* The fifth argument is the function size. */
3532 ++input_line_pointer
;
3533 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3536 &zero_address_frag
);
3537 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3542 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3543 SF_SET_FUNCTION (ext_sym
);
3544 SF_SET_PROCESS (ext_sym
);
3545 coff_add_linesym (ext_sym
);
3547 demand_empty_rest_of_line ();
3550 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3551 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3552 with the correct line number */
3554 static symbolS
*saved_bi_sym
= 0;
3558 int ignore ATTRIBUTE_UNUSED
;
3562 sym
= symbol_make (".bf");
3563 S_SET_SEGMENT (sym
, text_section
);
3564 symbol_set_frag (sym
, frag_now
);
3565 S_SET_VALUE (sym
, frag_now_fix ());
3566 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3568 coff_line_base
= get_absolute_expression ();
3570 S_SET_NUMBER_AUXILIARY (sym
, 1);
3571 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3573 /* Line number for bi. */
3576 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3581 symbol_get_tc (sym
)->output
= 1;
3583 ppc_frob_label (sym
);
3585 demand_empty_rest_of_line ();
3588 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3589 ".ef", except that the line number is absolute, not relative to the
3590 most recent ".bf" symbol. */
3594 int ignore ATTRIBUTE_UNUSED
;
3598 sym
= symbol_make (".ef");
3599 S_SET_SEGMENT (sym
, text_section
);
3600 symbol_set_frag (sym
, frag_now
);
3601 S_SET_VALUE (sym
, frag_now_fix ());
3602 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3603 S_SET_NUMBER_AUXILIARY (sym
, 1);
3604 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3605 symbol_get_tc (sym
)->output
= 1;
3607 ppc_frob_label (sym
);
3609 demand_empty_rest_of_line ();
3612 /* The .bi and .ei pseudo-ops. These take a string argument and
3613 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3614 the symbol list. The value of .bi will be know when the next .bf
3621 static symbolS
*last_biei
;
3628 name
= demand_copy_C_string (&len
);
3630 /* The value of these symbols is actually file offset. Here we set
3631 the value to the index into the line number entries. In
3632 ppc_frob_symbols we set the fix_line field, which will cause BFD
3633 to do the right thing. */
3635 sym
= symbol_make (name
);
3636 /* obj-coff.c currently only handles line numbers correctly in the
3638 S_SET_SEGMENT (sym
, text_section
);
3639 S_SET_VALUE (sym
, coff_n_line_nos
);
3640 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3642 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3643 symbol_get_tc (sym
)->output
= 1;
3651 for (look
= last_biei
? last_biei
: symbol_rootP
;
3652 (look
!= (symbolS
*) NULL
3653 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3654 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3655 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3656 look
= symbol_next (look
))
3658 if (look
!= (symbolS
*) NULL
)
3660 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3661 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3665 demand_empty_rest_of_line ();
3668 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3669 There is one argument, which is a csect symbol. The value of the
3670 .bs symbol is the index of this csect symbol. */
3674 int ignore ATTRIBUTE_UNUSED
;
3681 if (ppc_current_block
!= NULL
)
3682 as_bad (_("nested .bs blocks"));
3684 name
= input_line_pointer
;
3685 endc
= get_symbol_end ();
3687 csect
= symbol_find_or_make (name
);
3689 *input_line_pointer
= endc
;
3691 sym
= symbol_make (".bs");
3692 S_SET_SEGMENT (sym
, now_seg
);
3693 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3694 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3695 symbol_get_tc (sym
)->output
= 1;
3697 symbol_get_tc (sym
)->within
= csect
;
3699 ppc_frob_label (sym
);
3701 ppc_current_block
= sym
;
3703 demand_empty_rest_of_line ();
3706 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3710 int ignore ATTRIBUTE_UNUSED
;
3714 if (ppc_current_block
== NULL
)
3715 as_bad (_(".es without preceding .bs"));
3717 sym
= symbol_make (".es");
3718 S_SET_SEGMENT (sym
, now_seg
);
3719 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3720 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3721 symbol_get_tc (sym
)->output
= 1;
3723 ppc_frob_label (sym
);
3725 ppc_current_block
= NULL
;
3727 demand_empty_rest_of_line ();
3730 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3735 int ignore ATTRIBUTE_UNUSED
;
3739 sym
= symbol_make (".bb");
3740 S_SET_SEGMENT (sym
, text_section
);
3741 symbol_set_frag (sym
, frag_now
);
3742 S_SET_VALUE (sym
, frag_now_fix ());
3743 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3745 S_SET_NUMBER_AUXILIARY (sym
, 1);
3746 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3748 symbol_get_tc (sym
)->output
= 1;
3750 SF_SET_PROCESS (sym
);
3752 ppc_frob_label (sym
);
3754 demand_empty_rest_of_line ();
3757 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3762 int ignore ATTRIBUTE_UNUSED
;
3766 sym
= symbol_make (".eb");
3767 S_SET_SEGMENT (sym
, text_section
);
3768 symbol_set_frag (sym
, frag_now
);
3769 S_SET_VALUE (sym
, frag_now_fix ());
3770 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3771 S_SET_NUMBER_AUXILIARY (sym
, 1);
3772 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3773 symbol_get_tc (sym
)->output
= 1;
3775 SF_SET_PROCESS (sym
);
3777 ppc_frob_label (sym
);
3779 demand_empty_rest_of_line ();
3782 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3787 int ignore ATTRIBUTE_UNUSED
;
3793 name
= demand_copy_C_string (&len
);
3794 sym
= symbol_make (name
);
3795 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3796 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3797 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3798 S_SET_VALUE (sym
, 0);
3799 symbol_get_tc (sym
)->output
= 1;
3801 ppc_frob_label (sym
);
3803 demand_empty_rest_of_line ();
3806 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3810 int ignore ATTRIBUTE_UNUSED
;
3814 sym
= symbol_make (".ec");
3815 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3816 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3817 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3818 S_SET_VALUE (sym
, 0);
3819 symbol_get_tc (sym
)->output
= 1;
3821 ppc_frob_label (sym
);
3823 demand_empty_rest_of_line ();
3826 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3830 int ignore ATTRIBUTE_UNUSED
;
3832 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3833 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3840 subseg
= ppc_data_subsegment
;
3841 ++ppc_data_subsegment
;
3843 subseg_new (segment_name (data_section
), subseg
);
3844 ppc_toc_frag
= frag_now
;
3846 sym
= symbol_find_or_make ("TOC[TC0]");
3847 symbol_set_frag (sym
, frag_now
);
3848 S_SET_SEGMENT (sym
, data_section
);
3849 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3850 symbol_get_tc (sym
)->subseg
= subseg
;
3851 symbol_get_tc (sym
)->output
= 1;
3852 symbol_get_tc (sym
)->within
= sym
;
3854 ppc_toc_csect
= sym
;
3856 for (list
= ppc_data_csects
;
3857 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3858 list
= symbol_get_tc (list
)->next
)
3860 symbol_get_tc (list
)->next
= sym
;
3862 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3863 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3867 ppc_current_csect
= ppc_toc_csect
;
3869 demand_empty_rest_of_line ();
3872 /* The AIX assembler automatically aligns the operands of a .long or
3873 .short pseudo-op, and we want to be compatible. */
3876 ppc_xcoff_cons (log_size
)
3879 frag_align (log_size
, 0, 0);
3880 record_alignment (now_seg
, log_size
);
3881 cons (1 << log_size
);
3886 int dummy ATTRIBUTE_UNUSED
;
3891 (void) expression (&exp
);
3893 if (exp
.X_op
!= O_constant
)
3895 as_bad (_("non-constant byte count"));
3899 byte_count
= exp
.X_add_number
;
3901 if (*input_line_pointer
!= ',')
3903 as_bad (_("missing value"));
3907 ++input_line_pointer
;
3911 #endif /* OBJ_XCOFF */
3912 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3914 /* The .tc pseudo-op. This is used when generating either XCOFF or
3915 ELF. This takes two or more arguments.
3917 When generating XCOFF output, the first argument is the name to
3918 give to this location in the toc; this will be a symbol with class
3919 TC. The rest of the arguments are N-byte values to actually put at
3920 this location in the TOC; often there is just one more argument, a
3921 relocatable symbol reference. The size of the value to store
3922 depends on target word size. A 32-bit target uses 4-byte values, a
3923 64-bit target uses 8-byte values.
3925 When not generating XCOFF output, the arguments are the same, but
3926 the first argument is simply ignored. */
3930 int ignore ATTRIBUTE_UNUSED
;
3934 /* Define the TOC symbol name. */
3940 if (ppc_toc_csect
== (symbolS
*) NULL
3941 || ppc_toc_csect
!= ppc_current_csect
)
3943 as_bad (_(".tc not in .toc section"));
3944 ignore_rest_of_line ();
3948 name
= input_line_pointer
;
3949 endc
= get_symbol_end ();
3951 sym
= symbol_find_or_make (name
);
3953 *input_line_pointer
= endc
;
3955 if (S_IS_DEFINED (sym
))
3959 label
= symbol_get_tc (ppc_current_csect
)->within
;
3960 if (symbol_get_tc (label
)->class != XMC_TC0
)
3962 as_bad (_(".tc with no label"));
3963 ignore_rest_of_line ();
3967 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3968 symbol_set_frag (label
, symbol_get_frag (sym
));
3969 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3971 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3972 ++input_line_pointer
;
3977 S_SET_SEGMENT (sym
, now_seg
);
3978 symbol_set_frag (sym
, frag_now
);
3979 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3980 symbol_get_tc (sym
)->class = XMC_TC
;
3981 symbol_get_tc (sym
)->output
= 1;
3983 ppc_frob_label (sym
);
3986 #endif /* OBJ_XCOFF */
3990 /* Skip the TOC symbol name. */
3991 while (is_part_of_name (*input_line_pointer
)
3992 || *input_line_pointer
== '['
3993 || *input_line_pointer
== ']'
3994 || *input_line_pointer
== '{'
3995 || *input_line_pointer
== '}')
3996 ++input_line_pointer
;
3998 /* Align to a four/eight byte boundary. */
3999 align
= ppc_obj64
? 3 : 2;
4000 frag_align (align
, 0, 0);
4001 record_alignment (now_seg
, align
);
4002 #endif /* OBJ_ELF */
4004 if (*input_line_pointer
!= ',')
4005 demand_empty_rest_of_line ();
4008 ++input_line_pointer
;
4009 cons (ppc_obj64
? 8 : 4);
4013 /* Pseudo-op .machine. */
4016 ppc_machine (ignore
)
4017 int ignore ATTRIBUTE_UNUSED
;
4020 #define MAX_HISTORY 100
4021 static unsigned long *cpu_history
;
4022 static int curr_hist
;
4026 if (*input_line_pointer
== '"')
4029 cpu_string
= demand_copy_C_string (&len
);
4034 cpu_string
= input_line_pointer
;
4035 c
= get_symbol_end ();
4036 cpu_string
= xstrdup (cpu_string
);
4037 *input_line_pointer
= c
;
4040 if (cpu_string
!= NULL
)
4042 unsigned long old_cpu
= ppc_cpu
;
4045 for (p
= cpu_string
; *p
!= 0; p
++)
4048 if (strcmp (cpu_string
, "push") == 0)
4050 if (cpu_history
== NULL
)
4051 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4053 if (curr_hist
>= MAX_HISTORY
)
4054 as_bad (_(".machine stack overflow"));
4056 cpu_history
[curr_hist
++] = ppc_cpu
;
4058 else if (strcmp (cpu_string
, "pop") == 0)
4061 as_bad (_(".machine stack underflow"));
4063 ppc_cpu
= cpu_history
[--curr_hist
];
4065 else if (parse_cpu (cpu_string
))
4068 as_bad (_("invalid machine `%s'"), cpu_string
);
4070 if (ppc_cpu
!= old_cpu
)
4071 ppc_setup_opcodes ();
4074 demand_empty_rest_of_line ();
4077 /* See whether a symbol is in the TOC section. */
4080 ppc_is_toc_sym (sym
)
4084 return symbol_get_tc (sym
)->class == XMC_TC
;
4087 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4089 return strcmp (sname
, ".toc") == 0;
4091 return strcmp (sname
, ".got") == 0;
4094 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4098 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4100 /* Set the current section. */
4102 ppc_set_current_section (new)
4105 ppc_previous_section
= ppc_current_section
;
4106 ppc_current_section
= new;
4109 /* pseudo-op: .previous
4110 behaviour: toggles the current section with the previous section.
4112 warnings: "No previous section" */
4115 ppc_previous (ignore
)
4116 int ignore ATTRIBUTE_UNUSED
;
4120 if (ppc_previous_section
== NULL
)
4122 as_warn (_("No previous section to return to. Directive ignored."));
4126 subseg_set (ppc_previous_section
, 0);
4128 ppc_set_current_section (ppc_previous_section
);
4131 /* pseudo-op: .pdata
4132 behaviour: predefined read only data section
4136 initial: .section .pdata "adr3"
4137 a - don't know -- maybe a misprint
4138 d - initialized data
4140 3 - double word aligned (that would be 4 byte boundary)
4143 Tag index tables (also known as the function table) for exception
4144 handling, debugging, etc. */
4148 int ignore ATTRIBUTE_UNUSED
;
4150 if (pdata_section
== 0)
4152 pdata_section
= subseg_new (".pdata", 0);
4154 bfd_set_section_flags (stdoutput
, pdata_section
,
4155 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4156 | SEC_READONLY
| SEC_DATA
));
4158 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4162 pdata_section
= subseg_new (".pdata", 0);
4164 ppc_set_current_section (pdata_section
);
4167 /* pseudo-op: .ydata
4168 behaviour: predefined read only data section
4172 initial: .section .ydata "drw3"
4173 a - don't know -- maybe a misprint
4174 d - initialized data
4176 3 - double word aligned (that would be 4 byte boundary)
4178 Tag tables (also known as the scope table) for exception handling,
4183 int ignore ATTRIBUTE_UNUSED
;
4185 if (ydata_section
== 0)
4187 ydata_section
= subseg_new (".ydata", 0);
4188 bfd_set_section_flags (stdoutput
, ydata_section
,
4189 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4190 | SEC_READONLY
| SEC_DATA
));
4192 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4196 ydata_section
= subseg_new (".ydata", 0);
4198 ppc_set_current_section (ydata_section
);
4201 /* pseudo-op: .reldata
4202 behaviour: predefined read write data section
4203 double word aligned (4-byte)
4204 FIXME: relocation is applied to it
4205 FIXME: what's the difference between this and .data?
4208 initial: .section .reldata "drw3"
4209 d - initialized data
4212 3 - double word aligned (that would be 8 byte boundary)
4215 Like .data, but intended to hold data subject to relocation, such as
4216 function descriptors, etc. */
4219 ppc_reldata (ignore
)
4220 int ignore ATTRIBUTE_UNUSED
;
4222 if (reldata_section
== 0)
4224 reldata_section
= subseg_new (".reldata", 0);
4226 bfd_set_section_flags (stdoutput
, reldata_section
,
4227 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4230 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4234 reldata_section
= subseg_new (".reldata", 0);
4236 ppc_set_current_section (reldata_section
);
4239 /* pseudo-op: .rdata
4240 behaviour: predefined read only data section
4244 initial: .section .rdata "dr3"
4245 d - initialized data
4247 3 - double word aligned (that would be 4 byte boundary) */
4251 int ignore ATTRIBUTE_UNUSED
;
4253 if (rdata_section
== 0)
4255 rdata_section
= subseg_new (".rdata", 0);
4256 bfd_set_section_flags (stdoutput
, rdata_section
,
4257 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4258 | SEC_READONLY
| SEC_DATA
));
4260 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4264 rdata_section
= subseg_new (".rdata", 0);
4266 ppc_set_current_section (rdata_section
);
4269 /* pseudo-op: .ualong
4270 behaviour: much like .int, with the exception that no alignment is
4272 FIXME: test the alignment statement
4278 int ignore ATTRIBUTE_UNUSED
;
4284 /* pseudo-op: .znop <symbol name>
4285 behaviour: Issue a nop instruction
4286 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4287 the supplied symbol name.
4289 warnings: Missing symbol name */
4293 int ignore ATTRIBUTE_UNUSED
;
4296 const struct powerpc_opcode
*opcode
;
4307 /* Strip out the symbol name. */
4308 symbol_name
= input_line_pointer
;
4309 c
= get_symbol_end ();
4311 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4312 strcpy (name
, symbol_name
);
4314 sym
= symbol_find_or_make (name
);
4316 *input_line_pointer
= c
;
4320 /* Look up the opcode in the hash table. */
4321 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4323 /* Stick in the nop. */
4324 insn
= opcode
->opcode
;
4326 /* Write out the instruction. */
4328 md_number_to_chars (f
, insn
, 4);
4330 f
- frag_now
->fr_literal
,
4335 BFD_RELOC_16_GOT_PCREL
);
4348 register char *name
;
4352 register symbolS
*symbolP
;
4355 name
= input_line_pointer
;
4356 c
= get_symbol_end ();
4358 /* just after name is now '\0'. */
4359 p
= input_line_pointer
;
4362 if (*input_line_pointer
!= ',')
4364 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4365 ignore_rest_of_line ();
4369 input_line_pointer
++; /* skip ',' */
4370 if ((temp
= get_absolute_expression ()) < 0)
4372 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4373 ignore_rest_of_line ();
4379 /* The third argument to .comm is the alignment. */
4380 if (*input_line_pointer
!= ',')
4384 ++input_line_pointer
;
4385 align
= get_absolute_expression ();
4388 as_warn (_("ignoring bad alignment"));
4395 symbolP
= symbol_find_or_make (name
);
4398 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4400 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4401 S_GET_NAME (symbolP
));
4402 ignore_rest_of_line ();
4406 if (S_GET_VALUE (symbolP
))
4408 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4409 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4410 S_GET_NAME (symbolP
),
4411 (long) S_GET_VALUE (symbolP
),
4416 S_SET_VALUE (symbolP
, (valueT
) temp
);
4417 S_SET_EXTERNAL (symbolP
);
4420 demand_empty_rest_of_line ();
4424 * implement the .section pseudo op:
4425 * .section name {, "flags"}
4427 * | +--- optional flags: 'b' for bss
4429 * +-- section name 'l' for lib
4433 * 'd' (apparently m88k for data)
4435 * But if the argument is not a quoted string, treat it as a
4436 * subsegment number.
4438 * FIXME: this is a copy of the section processing from obj-coff.c, with
4439 * additions/changes for the moto-pas assembler support. There are three
4442 * FIXME: I just noticed this. This doesn't work at all really. It it
4443 * setting bits that bfd probably neither understands or uses. The
4444 * correct approach (?) will have to incorporate extra fields attached
4445 * to the section to hold the system specific stuff. (krk)
4448 * 'a' - unknown - referred to in documentation, but no definition supplied
4449 * 'c' - section has code
4450 * 'd' - section has initialized data
4451 * 'u' - section has uninitialized data
4452 * 'i' - section contains directives (info)
4453 * 'n' - section can be discarded
4454 * 'R' - remove section at link time
4456 * Section Protection:
4457 * 'r' - section is readable
4458 * 'w' - section is writeable
4459 * 'x' - section is executable
4460 * 's' - section is sharable
4462 * Section Alignment:
4463 * '0' - align to byte boundary
4464 * '1' - align to halfword undary
4465 * '2' - align to word boundary
4466 * '3' - align to doubleword boundary
4467 * '4' - align to quadword boundary
4468 * '5' - align to 32 byte boundary
4469 * '6' - align to 64 byte boundary
4474 ppc_pe_section (ignore
)
4475 int ignore ATTRIBUTE_UNUSED
;
4477 /* Strip out the section name. */
4486 section_name
= input_line_pointer
;
4487 c
= get_symbol_end ();
4489 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4490 strcpy (name
, section_name
);
4492 *input_line_pointer
= c
;
4497 flags
= SEC_NO_FLAGS
;
4499 if (strcmp (name
, ".idata$2") == 0)
4503 else if (strcmp (name
, ".idata$3") == 0)
4507 else if (strcmp (name
, ".idata$4") == 0)
4511 else if (strcmp (name
, ".idata$5") == 0)
4515 else if (strcmp (name
, ".idata$6") == 0)
4520 /* Default alignment to 16 byte boundary. */
4523 if (*input_line_pointer
== ',')
4525 ++input_line_pointer
;
4527 if (*input_line_pointer
!= '"')
4528 exp
= get_absolute_expression ();
4531 ++input_line_pointer
;
4532 while (*input_line_pointer
!= '"'
4533 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4535 switch (*input_line_pointer
)
4537 /* Section Contents */
4538 case 'a': /* unknown */
4539 as_bad (_("Unsupported section attribute -- 'a'"));
4541 case 'c': /* code section */
4544 case 'd': /* section has initialized data */
4547 case 'u': /* section has uninitialized data */
4548 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4552 case 'i': /* section contains directives (info) */
4553 /* FIXME: This is IMAGE_SCN_LNK_INFO
4555 flags
|= SEC_HAS_CONTENTS
;
4557 case 'n': /* section can be discarded */
4560 case 'R': /* Remove section at link time */
4561 flags
|= SEC_NEVER_LOAD
;
4564 /* Section Protection */
4565 case 'r': /* section is readable */
4566 flags
|= IMAGE_SCN_MEM_READ
;
4568 case 'w': /* section is writeable */
4569 flags
|= IMAGE_SCN_MEM_WRITE
;
4571 case 'x': /* section is executable */
4572 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4574 case 's': /* section is sharable */
4575 flags
|= IMAGE_SCN_MEM_SHARED
;
4578 /* Section Alignment */
4579 case '0': /* align to byte boundary */
4580 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4583 case '1': /* align to halfword boundary */
4584 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4587 case '2': /* align to word boundary */
4588 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4591 case '3': /* align to doubleword boundary */
4592 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4595 case '4': /* align to quadword boundary */
4596 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4599 case '5': /* align to 32 byte boundary */
4600 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4603 case '6': /* align to 64 byte boundary */
4604 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4609 as_bad (_("unknown section attribute '%c'"),
4610 *input_line_pointer
);
4613 ++input_line_pointer
;
4615 if (*input_line_pointer
== '"')
4616 ++input_line_pointer
;
4620 sec
= subseg_new (name
, (subsegT
) exp
);
4622 ppc_set_current_section (sec
);
4624 if (flags
!= SEC_NO_FLAGS
)
4626 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4627 as_bad (_("error setting flags for \"%s\": %s"),
4628 bfd_section_name (stdoutput
, sec
),
4629 bfd_errmsg (bfd_get_error ()));
4632 bfd_set_section_alignment (stdoutput
, sec
, align
);
4637 ppc_pe_function (ignore
)
4638 int ignore ATTRIBUTE_UNUSED
;
4644 name
= input_line_pointer
;
4645 endc
= get_symbol_end ();
4647 ext_sym
= symbol_find_or_make (name
);
4649 *input_line_pointer
= endc
;
4651 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4652 SF_SET_FUNCTION (ext_sym
);
4653 SF_SET_PROCESS (ext_sym
);
4654 coff_add_linesym (ext_sym
);
4656 demand_empty_rest_of_line ();
4660 ppc_pe_tocd (ignore
)
4661 int ignore ATTRIBUTE_UNUSED
;
4663 if (tocdata_section
== 0)
4665 tocdata_section
= subseg_new (".tocd", 0);
4666 /* FIXME: section flags won't work. */
4667 bfd_set_section_flags (stdoutput
, tocdata_section
,
4668 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4669 | SEC_READONLY
| SEC_DATA
));
4671 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4675 rdata_section
= subseg_new (".tocd", 0);
4678 ppc_set_current_section (tocdata_section
);
4680 demand_empty_rest_of_line ();
4683 /* Don't adjust TOC relocs to use the section symbol. */
4686 ppc_pe_fix_adjustable (fix
)
4689 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4696 /* XCOFF specific symbol and file handling. */
4698 /* Canonicalize the symbol name. We use the to force the suffix, if
4699 any, to use square brackets, and to be in upper case. */
4702 ppc_canonicalize_symbol_name (name
)
4707 if (ppc_stab_symbol
)
4710 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4724 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4727 if (*s
== '\0' || s
[1] != '\0')
4728 as_bad (_("bad symbol suffix"));
4736 /* Set the class of a symbol based on the suffix, if any. This is
4737 called whenever a new symbol is created. */
4740 ppc_symbol_new_hook (sym
)
4743 struct ppc_tc_sy
*tc
;
4746 tc
= symbol_get_tc (sym
);
4750 tc
->real_name
= NULL
;
4756 if (ppc_stab_symbol
)
4759 s
= strchr (S_GET_NAME (sym
), '[');
4760 if (s
== (const char *) NULL
)
4762 /* There is no suffix. */
4771 if (strcmp (s
, "BS]") == 0)
4775 if (strcmp (s
, "DB]") == 0)
4777 else if (strcmp (s
, "DS]") == 0)
4781 if (strcmp (s
, "GL]") == 0)
4785 if (strcmp (s
, "PR]") == 0)
4789 if (strcmp (s
, "RO]") == 0)
4791 else if (strcmp (s
, "RW]") == 0)
4795 if (strcmp (s
, "SV]") == 0)
4799 if (strcmp (s
, "TC]") == 0)
4801 else if (strcmp (s
, "TI]") == 0)
4803 else if (strcmp (s
, "TB]") == 0)
4805 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4806 tc
->class = XMC_TC0
;
4809 if (strcmp (s
, "UA]") == 0)
4811 else if (strcmp (s
, "UC]") == 0)
4815 if (strcmp (s
, "XO]") == 0)
4820 if (tc
->class == -1)
4821 as_bad (_("Unrecognized symbol suffix"));
4824 /* Set the class of a label based on where it is defined. This
4825 handles symbols without suffixes. Also, move the symbol so that it
4826 follows the csect symbol. */
4829 ppc_frob_label (sym
)
4832 if (ppc_current_csect
!= (symbolS
*) NULL
)
4834 if (symbol_get_tc (sym
)->class == -1)
4835 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4837 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4838 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4839 &symbol_rootP
, &symbol_lastP
);
4840 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4844 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4845 seen. It tells ppc_adjust_symtab whether it needs to look through
4848 static bfd_boolean ppc_saw_abs
;
4850 /* Change the name of a symbol just before writing it out. Set the
4851 real name if the .rename pseudo-op was used. Otherwise, remove any
4852 class suffix. Return 1 if the symbol should not be included in the
4856 ppc_frob_symbol (sym
)
4859 static symbolS
*ppc_last_function
;
4860 static symbolS
*set_end
;
4862 /* Discard symbols that should not be included in the output symbol
4864 if (! symbol_used_in_reloc_p (sym
)
4865 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4866 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4867 && ! symbol_get_tc (sym
)->output
4868 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4871 /* This one will disappear anyway. Don't make a csect sym for it. */
4872 if (sym
== abs_section_sym
)
4875 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4876 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4882 name
= S_GET_NAME (sym
);
4883 s
= strchr (name
, '[');
4884 if (s
!= (char *) NULL
)
4890 snew
= xmalloc (len
+ 1);
4891 memcpy (snew
, name
, len
);
4894 S_SET_NAME (sym
, snew
);
4898 if (set_end
!= (symbolS
*) NULL
)
4900 SA_SET_SYM_ENDNDX (set_end
, sym
);
4904 if (SF_GET_FUNCTION (sym
))
4906 if (ppc_last_function
!= (symbolS
*) NULL
)
4907 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4908 ppc_last_function
= sym
;
4909 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4911 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4912 SA_SET_SYM_FSIZE (sym
,
4913 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4916 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4917 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4919 if (ppc_last_function
== (symbolS
*) NULL
)
4920 as_bad (_(".ef with no preceding .function"));
4923 set_end
= ppc_last_function
;
4924 ppc_last_function
= NULL
;
4926 /* We don't have a C_EFCN symbol, but we need to force the
4927 COFF backend to believe that it has seen one. */
4928 coff_last_function
= NULL
;
4932 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4933 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4934 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4935 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4936 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4937 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4938 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4939 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4940 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4941 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4942 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4944 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4945 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4948 union internal_auxent
*a
;
4950 /* Create a csect aux. */
4951 i
= S_GET_NUMBER_AUXILIARY (sym
);
4952 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4953 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4954 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4956 /* This is the TOC table. */
4957 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4958 a
->x_csect
.x_scnlen
.l
= 0;
4959 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4961 else if (symbol_get_tc (sym
)->subseg
!= 0)
4963 /* This is a csect symbol. x_scnlen is the size of the
4965 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4966 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4967 S_GET_SEGMENT (sym
))
4968 - S_GET_VALUE (sym
));
4971 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4972 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4973 - S_GET_VALUE (sym
));
4975 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4977 else if (S_GET_SEGMENT (sym
) == bss_section
)
4979 /* This is a common symbol. */
4980 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4981 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4982 if (S_IS_EXTERNAL (sym
))
4983 symbol_get_tc (sym
)->class = XMC_RW
;
4985 symbol_get_tc (sym
)->class = XMC_BS
;
4987 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4989 /* This is an absolute symbol. The csect will be created by
4990 ppc_adjust_symtab. */
4992 a
->x_csect
.x_smtyp
= XTY_LD
;
4993 if (symbol_get_tc (sym
)->class == -1)
4994 symbol_get_tc (sym
)->class = XMC_XO
;
4996 else if (! S_IS_DEFINED (sym
))
4998 /* This is an external symbol. */
4999 a
->x_csect
.x_scnlen
.l
= 0;
5000 a
->x_csect
.x_smtyp
= XTY_ER
;
5002 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5006 /* This is a TOC definition. x_scnlen is the size of the
5008 next
= symbol_next (sym
);
5009 while (symbol_get_tc (next
)->class == XMC_TC0
)
5010 next
= symbol_next (next
);
5011 if (next
== (symbolS
*) NULL
5012 || symbol_get_tc (next
)->class != XMC_TC
)
5014 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5015 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5017 - S_GET_VALUE (sym
));
5019 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5020 - S_GET_VALUE (sym
));
5024 resolve_symbol_value (next
);
5025 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5026 - S_GET_VALUE (sym
));
5028 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5034 /* This is a normal symbol definition. x_scnlen is the
5035 symbol index of the containing csect. */
5036 if (S_GET_SEGMENT (sym
) == text_section
)
5037 csect
= ppc_text_csects
;
5038 else if (S_GET_SEGMENT (sym
) == data_section
)
5039 csect
= ppc_data_csects
;
5043 /* Skip the initial dummy symbol. */
5044 csect
= symbol_get_tc (csect
)->next
;
5046 if (csect
== (symbolS
*) NULL
)
5048 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5049 a
->x_csect
.x_scnlen
.l
= 0;
5053 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5055 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5056 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5057 > S_GET_VALUE (sym
))
5059 csect
= symbol_get_tc (csect
)->next
;
5062 a
->x_csect
.x_scnlen
.p
=
5063 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5064 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5067 a
->x_csect
.x_smtyp
= XTY_LD
;
5070 a
->x_csect
.x_parmhash
= 0;
5071 a
->x_csect
.x_snhash
= 0;
5072 if (symbol_get_tc (sym
)->class == -1)
5073 a
->x_csect
.x_smclas
= XMC_PR
;
5075 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5076 a
->x_csect
.x_stab
= 0;
5077 a
->x_csect
.x_snstab
= 0;
5079 /* Don't let the COFF backend resort these symbols. */
5080 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5082 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5084 /* We want the value to be the symbol index of the referenced
5085 csect symbol. BFD will do that for us if we set the right
5087 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5088 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5090 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5091 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5093 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5098 /* The value is the offset from the enclosing csect. */
5099 block
= symbol_get_tc (sym
)->within
;
5100 csect
= symbol_get_tc (block
)->within
;
5101 resolve_symbol_value (csect
);
5102 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5104 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5105 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5107 /* We want the value to be a file offset into the line numbers.
5108 BFD will do that for us if we set the right flags. We have
5109 already set the value correctly. */
5110 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5116 /* Adjust the symbol table. This creates csect symbols for all
5117 absolute symbols. */
5120 ppc_adjust_symtab ()
5127 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5131 union internal_auxent
*a
;
5133 if (S_GET_SEGMENT (sym
) != absolute_section
)
5136 csect
= symbol_create (".abs[XO]", absolute_section
,
5137 S_GET_VALUE (sym
), &zero_address_frag
);
5138 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5139 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5140 i
= S_GET_NUMBER_AUXILIARY (csect
);
5141 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5142 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5143 a
->x_csect
.x_scnlen
.l
= 0;
5144 a
->x_csect
.x_smtyp
= XTY_SD
;
5145 a
->x_csect
.x_parmhash
= 0;
5146 a
->x_csect
.x_snhash
= 0;
5147 a
->x_csect
.x_smclas
= XMC_XO
;
5148 a
->x_csect
.x_stab
= 0;
5149 a
->x_csect
.x_snstab
= 0;
5151 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5153 i
= S_GET_NUMBER_AUXILIARY (sym
);
5154 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5155 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5156 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5159 ppc_saw_abs
= FALSE
;
5162 /* Set the VMA for a section. This is called on all the sections in
5166 ppc_frob_section (sec
)
5169 static bfd_vma vma
= 0;
5171 vma
= md_section_align (sec
, vma
);
5172 bfd_set_section_vma (stdoutput
, sec
, vma
);
5173 vma
+= bfd_section_size (stdoutput
, sec
);
5176 #endif /* OBJ_XCOFF */
5178 /* Turn a string in input_line_pointer into a floating point constant
5179 of type TYPE, and store the appropriate bytes in *LITP. The number
5180 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5181 returned, or NULL on OK. */
5184 md_atof (type
, litp
, sizep
)
5190 LITTLENUM_TYPE words
[4];
5206 return _("bad call to md_atof");
5209 t
= atof_ieee (input_line_pointer
, type
, words
);
5211 input_line_pointer
= t
;
5215 if (target_big_endian
)
5217 for (i
= 0; i
< prec
; i
++)
5219 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5225 for (i
= prec
- 1; i
>= 0; i
--)
5227 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5235 /* Write a value out to the object file, using the appropriate
5239 md_number_to_chars (buf
, val
, n
)
5244 if (target_big_endian
)
5245 number_to_chars_bigendian (buf
, val
, n
);
5247 number_to_chars_littleendian (buf
, val
, n
);
5250 /* Align a section (I don't know why this is machine dependent). */
5253 md_section_align (seg
, addr
)
5257 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5259 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5262 /* We don't have any form of relaxing. */
5265 md_estimate_size_before_relax (fragp
, seg
)
5266 fragS
*fragp ATTRIBUTE_UNUSED
;
5267 asection
*seg ATTRIBUTE_UNUSED
;
5273 /* Convert a machine dependent frag. We never generate these. */
5276 md_convert_frag (abfd
, sec
, fragp
)
5277 bfd
*abfd ATTRIBUTE_UNUSED
;
5278 asection
*sec ATTRIBUTE_UNUSED
;
5279 fragS
*fragp ATTRIBUTE_UNUSED
;
5284 /* We have no need to default values of symbols. */
5287 md_undefined_symbol (name
)
5288 char *name ATTRIBUTE_UNUSED
;
5293 /* Functions concerning relocs. */
5295 /* The location from which a PC relative jump should be calculated,
5296 given a PC relative reloc. */
5299 md_pcrel_from_section (fixp
, sec
)
5301 segT sec ATTRIBUTE_UNUSED
;
5303 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5308 /* This is called to see whether a fixup should be adjusted to use a
5309 section symbol. We take the opportunity to change a fixup against
5310 a symbol in the TOC subsegment into a reloc against the
5311 corresponding .tc symbol. */
5314 ppc_fix_adjustable (fix
)
5317 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5318 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5319 TC_SYMFIELD_TYPE
*tc
;
5321 if (symseg
== absolute_section
)
5324 if (ppc_toc_csect
!= (symbolS
*) NULL
5325 && fix
->fx_addsy
!= ppc_toc_csect
5326 && symseg
== data_section
5327 && val
>= ppc_toc_frag
->fr_address
5328 && (ppc_after_toc_frag
== (fragS
*) NULL
5329 || val
< ppc_after_toc_frag
->fr_address
))
5333 for (sy
= symbol_next (ppc_toc_csect
);
5334 sy
!= (symbolS
*) NULL
;
5335 sy
= symbol_next (sy
))
5337 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5339 if (sy_tc
->class == XMC_TC0
)
5341 if (sy_tc
->class != XMC_TC
)
5343 if (val
== resolve_symbol_value (sy
))
5346 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5351 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5352 _("symbol in .toc does not match any .tc"));
5355 /* Possibly adjust the reloc to be against the csect. */
5356 tc
= symbol_get_tc (fix
->fx_addsy
);
5358 && tc
->class != XMC_TC0
5359 && tc
->class != XMC_TC
5360 && symseg
!= bss_section
5361 /* Don't adjust if this is a reloc in the toc section. */
5362 && (symseg
!= data_section
5363 || ppc_toc_csect
== NULL
5364 || val
< ppc_toc_frag
->fr_address
5365 || (ppc_after_toc_frag
!= NULL
5366 && val
>= ppc_after_toc_frag
->fr_address
)))
5369 symbolS
*next_csect
;
5371 if (symseg
== text_section
)
5372 csect
= ppc_text_csects
;
5373 else if (symseg
== data_section
)
5374 csect
= ppc_data_csects
;
5378 /* Skip the initial dummy symbol. */
5379 csect
= symbol_get_tc (csect
)->next
;
5381 if (csect
!= (symbolS
*) NULL
)
5383 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5384 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5386 /* If the csect address equals the symbol value, then we
5387 have to look through the full symbol table to see
5388 whether this is the csect we want. Note that we will
5389 only get here if the csect has zero length. */
5390 if (symbol_get_frag (csect
)->fr_address
== val
5391 && S_GET_VALUE (csect
) == val
)
5395 for (scan
= symbol_next (csect
);
5397 scan
= symbol_next (scan
))
5399 if (symbol_get_tc (scan
)->subseg
!= 0)
5401 if (scan
== fix
->fx_addsy
)
5405 /* If we found the symbol before the next csect
5406 symbol, then this is the csect we want. */
5407 if (scan
== fix
->fx_addsy
)
5414 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5415 fix
->fx_addsy
= csect
;
5420 /* Adjust a reloc against a .lcomm symbol to be against the base
5422 if (symseg
== bss_section
5423 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5425 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5427 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5434 /* A reloc from one csect to another must be kept. The assembler
5435 will, of course, keep relocs between sections, and it will keep
5436 absolute relocs, but we need to force it to keep PC relative relocs
5437 between two csects in the same section. */
5440 ppc_force_relocation (fix
)
5443 /* At this point fix->fx_addsy should already have been converted to
5444 a csect symbol. If the csect does not include the fragment, then
5445 we need to force the relocation. */
5447 && fix
->fx_addsy
!= NULL
5448 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5449 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5450 > fix
->fx_frag
->fr_address
)
5451 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5452 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5453 <= fix
->fx_frag
->fr_address
))))
5456 return generic_force_reloc (fix
);
5459 #endif /* OBJ_XCOFF */
5462 /* If this function returns non-zero, it guarantees that a relocation
5463 will be emitted for a fixup. */
5466 ppc_force_relocation (fix
)
5469 /* Branch prediction relocations must force a relocation, as must
5470 the vtable description relocs. */
5471 switch (fix
->fx_r_type
)
5473 case BFD_RELOC_PPC_B16_BRTAKEN
:
5474 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5475 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5476 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5477 case BFD_RELOC_24_PLT_PCREL
:
5478 case BFD_RELOC_PPC64_TOC
:
5484 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5485 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5488 return generic_force_reloc (fix
);
5492 ppc_fix_adjustable (fix
)
5495 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5496 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5497 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5498 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5499 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5500 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5501 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5502 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5503 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5507 /* Apply a fixup to the object code. This is called for all the
5508 fixups we generated by the call to fix_new_exp, above. In the call
5509 above we used a reloc code which was the largest legal reloc code
5510 plus the operand index. Here we undo that to recover the operand
5511 index. At this point all symbol values should be fully resolved,
5512 and we attempt to completely resolve the reloc. If we can not do
5513 that, we determine the correct reloc code and put it back in the
5517 md_apply_fix (fixP
, valP
, seg
)
5520 segT seg ATTRIBUTE_UNUSED
;
5522 valueT value
= * valP
;
5525 if (fixP
->fx_addsy
!= NULL
)
5527 /* Hack around bfd_install_relocation brain damage. */
5529 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5534 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5535 the symbol values. If we are doing this relocation the code in
5536 write.c is going to call bfd_install_relocation, which is also
5537 going to use the symbol value. That means that if the reloc is
5538 fully resolved we want to use *valP since bfd_install_relocation is
5540 However, if the reloc is not fully resolved we do not want to use
5541 *valP, and must use fx_offset instead. However, if the reloc
5542 is PC relative, we do want to use *valP since it includes the
5543 result of md_pcrel_from. This is confusing. */
5544 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5547 else if (fixP
->fx_pcrel
)
5551 value
= fixP
->fx_offset
;
5554 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5556 /* We can't actually support subtracting a symbol. */
5557 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5560 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5563 const struct powerpc_operand
*operand
;
5567 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5569 operand
= &powerpc_operands
[opindex
];
5572 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5573 does not generate a reloc. It uses the offset of `sym' within its
5574 csect. Other usages, such as `.long sym', generate relocs. This
5575 is the documented behaviour of non-TOC symbols. */
5576 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5577 && operand
->bits
== 16
5578 && operand
->shift
== 0
5579 && (operand
->insert
== NULL
|| ppc_obj64
)
5580 && fixP
->fx_addsy
!= NULL
5581 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5582 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5583 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5584 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5586 value
= fixP
->fx_offset
;
5591 /* Fetch the instruction, insert the fully resolved operand
5592 value, and stuff the instruction back again. */
5593 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5594 if (target_big_endian
)
5595 insn
= bfd_getb32 ((unsigned char *) where
);
5597 insn
= bfd_getl32 ((unsigned char *) where
);
5598 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5599 fixP
->fx_file
, fixP
->fx_line
);
5600 if (target_big_endian
)
5601 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5603 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5606 /* Nothing else to do here. */
5609 assert (fixP
->fx_addsy
!= NULL
);
5611 /* Determine a BFD reloc value based on the operand information.
5612 We are only prepared to turn a few of the operands into
5614 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5615 && operand
->bits
== 26
5616 && operand
->shift
== 0)
5617 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5618 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5619 && operand
->bits
== 16
5620 && operand
->shift
== 0)
5622 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5625 if (target_big_endian
)
5626 fixP
->fx_where
+= 2;
5629 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5630 && operand
->bits
== 26
5631 && operand
->shift
== 0)
5632 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5633 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5634 && operand
->bits
== 16
5635 && operand
->shift
== 0)
5637 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5640 if (target_big_endian
)
5641 fixP
->fx_where
+= 2;
5644 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5645 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5646 && operand
->bits
== 16
5647 && operand
->shift
== 0)
5649 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5651 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5654 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5655 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5660 fixP
->fx_r_type
= BFD_RELOC_16
;
5663 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5664 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5668 if (target_big_endian
)
5669 fixP
->fx_where
+= 2;
5671 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5677 /* Use expr_symbol_where to see if this is an expression
5679 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5680 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5681 _("unresolved expression that must be resolved"));
5683 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5684 _("unsupported relocation against %s"),
5685 S_GET_NAME (fixP
->fx_addsy
));
5693 ppc_elf_validate_fix (fixP
, seg
);
5695 switch (fixP
->fx_r_type
)
5697 case BFD_RELOC_CTOR
:
5704 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5708 case BFD_RELOC_32_PCREL
:
5709 case BFD_RELOC_PPC_EMB_NADDR32
:
5710 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5717 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5720 case BFD_RELOC_64_PCREL
:
5721 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5725 case BFD_RELOC_GPREL16
:
5726 case BFD_RELOC_16_GOT_PCREL
:
5727 case BFD_RELOC_16_GOTOFF
:
5728 case BFD_RELOC_LO16_GOTOFF
:
5729 case BFD_RELOC_HI16_GOTOFF
:
5730 case BFD_RELOC_HI16_S_GOTOFF
:
5731 case BFD_RELOC_16_BASEREL
:
5732 case BFD_RELOC_LO16_BASEREL
:
5733 case BFD_RELOC_HI16_BASEREL
:
5734 case BFD_RELOC_HI16_S_BASEREL
:
5735 case BFD_RELOC_PPC_EMB_NADDR16
:
5736 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5737 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5738 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5739 case BFD_RELOC_PPC_EMB_SDAI16
:
5740 case BFD_RELOC_PPC_EMB_SDA2REL
:
5741 case BFD_RELOC_PPC_EMB_SDA2I16
:
5742 case BFD_RELOC_PPC_EMB_RELSEC16
:
5743 case BFD_RELOC_PPC_EMB_RELST_LO
:
5744 case BFD_RELOC_PPC_EMB_RELST_HI
:
5745 case BFD_RELOC_PPC_EMB_RELST_HA
:
5746 case BFD_RELOC_PPC_EMB_RELSDA
:
5747 case BFD_RELOC_PPC_TOC16
:
5749 case BFD_RELOC_PPC64_TOC16_LO
:
5750 case BFD_RELOC_PPC64_TOC16_HI
:
5751 case BFD_RELOC_PPC64_TOC16_HA
:
5755 if (fixP
->fx_addsy
!= NULL
)
5756 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5757 _("cannot emit PC relative %s relocation against %s"),
5758 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5759 S_GET_NAME (fixP
->fx_addsy
));
5761 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5762 _("cannot emit PC relative %s relocation"),
5763 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5766 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5772 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5775 case BFD_RELOC_16_PCREL
:
5776 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5780 case BFD_RELOC_LO16
:
5782 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5785 case BFD_RELOC_LO16_PCREL
:
5786 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5790 /* This case happens when you write, for example,
5792 where L1 and L2 are defined later. */
5793 case BFD_RELOC_HI16
:
5795 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5798 case BFD_RELOC_HI16_PCREL
:
5799 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5803 case BFD_RELOC_HI16_S
:
5805 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5808 case BFD_RELOC_HI16_S_PCREL
:
5809 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5814 case BFD_RELOC_PPC64_HIGHER
:
5817 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5818 PPC_HIGHER (value
), 2);
5821 case BFD_RELOC_PPC64_HIGHER_S
:
5824 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5825 PPC_HIGHERA (value
), 2);
5828 case BFD_RELOC_PPC64_HIGHEST
:
5831 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5832 PPC_HIGHEST (value
), 2);
5835 case BFD_RELOC_PPC64_HIGHEST_S
:
5838 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5839 PPC_HIGHESTA (value
), 2);
5842 case BFD_RELOC_PPC64_ADDR16_DS
:
5843 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5844 case BFD_RELOC_PPC64_GOT16_DS
:
5845 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5846 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5847 case BFD_RELOC_PPC64_SECTOFF_DS
:
5848 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5849 case BFD_RELOC_PPC64_TOC16_DS
:
5850 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5851 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5852 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5856 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5857 unsigned long val
, mask
;
5859 if (target_big_endian
)
5860 val
= bfd_getb32 (where
- 2);
5862 val
= bfd_getl32 (where
);
5864 /* lq insns reserve the four lsbs. */
5865 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5866 && (val
& (0x3f << 26)) == (56u << 26))
5868 val
|= value
& mask
;
5869 if (target_big_endian
)
5870 bfd_putb16 ((bfd_vma
) val
, where
);
5872 bfd_putl16 ((bfd_vma
) val
, where
);
5876 case BFD_RELOC_PPC_B16_BRTAKEN
:
5877 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5878 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5879 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5882 case BFD_RELOC_PPC_TLS
:
5885 case BFD_RELOC_PPC_DTPMOD
:
5886 case BFD_RELOC_PPC_TPREL16
:
5887 case BFD_RELOC_PPC_TPREL16_LO
:
5888 case BFD_RELOC_PPC_TPREL16_HI
:
5889 case BFD_RELOC_PPC_TPREL16_HA
:
5890 case BFD_RELOC_PPC_TPREL
:
5891 case BFD_RELOC_PPC_DTPREL16
:
5892 case BFD_RELOC_PPC_DTPREL16_LO
:
5893 case BFD_RELOC_PPC_DTPREL16_HI
:
5894 case BFD_RELOC_PPC_DTPREL16_HA
:
5895 case BFD_RELOC_PPC_DTPREL
:
5896 case BFD_RELOC_PPC_GOT_TLSGD16
:
5897 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5898 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5899 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5900 case BFD_RELOC_PPC_GOT_TLSLD16
:
5901 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5902 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5903 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5904 case BFD_RELOC_PPC_GOT_TPREL16
:
5905 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5906 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5907 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5908 case BFD_RELOC_PPC_GOT_DTPREL16
:
5909 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5910 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5911 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5912 case BFD_RELOC_PPC64_TPREL16_DS
:
5913 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5914 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5915 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5916 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5917 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5918 case BFD_RELOC_PPC64_DTPREL16_DS
:
5919 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5920 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5921 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5922 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5923 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5924 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5927 /* Because SDA21 modifies the register field, the size is set to 4
5928 bytes, rather than 2, so offset it here appropriately. */
5929 case BFD_RELOC_PPC_EMB_SDA21
:
5933 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5934 + ((target_big_endian
) ? 2 : 0),
5941 /* This can occur if there is a bug in the input assembler, eg:
5942 ".byte <undefined_symbol> - ." */
5944 as_bad (_("Unable to handle reference to symbol %s"),
5945 S_GET_NAME (fixP
->fx_addsy
));
5947 as_bad (_("Unable to resolve expression"));
5951 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5955 case BFD_RELOC_24_PLT_PCREL
:
5956 case BFD_RELOC_PPC_LOCAL24PC
:
5957 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5965 /* Fetch the instruction, insert the fully resolved operand
5966 value, and stuff the instruction back again. */
5967 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5968 if (target_big_endian
)
5969 insn
= bfd_getb32 ((unsigned char *) where
);
5971 insn
= bfd_getl32 ((unsigned char *) where
);
5972 if ((value
& 3) != 0)
5973 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5974 _("must branch to an address a multiple of 4"));
5975 if ((offsetT
) value
< -0x40000000
5976 || (offsetT
) value
>= 0x40000000)
5977 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5978 _("@local or @plt branch destination is too far away, %ld bytes"),
5980 insn
= insn
| (value
& 0x03fffffc);
5981 if (target_big_endian
)
5982 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5984 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5988 case BFD_RELOC_VTABLE_INHERIT
:
5991 && !S_IS_DEFINED (fixP
->fx_addsy
)
5992 && !S_IS_WEAK (fixP
->fx_addsy
))
5993 S_SET_WEAK (fixP
->fx_addsy
);
5996 case BFD_RELOC_VTABLE_ENTRY
:
6001 /* Generated by reference to `sym@tocbase'. The sym is
6002 ignored by the linker. */
6003 case BFD_RELOC_PPC64_TOC
:
6009 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6016 fixP
->fx_addnumber
= value
;
6018 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6019 from the section contents. If we are going to be emitting a reloc
6020 then the section contents are immaterial, so don't warn if they
6021 happen to overflow. Leave such warnings to ld. */
6023 fixP
->fx_no_overflow
= 1;
6025 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6026 fixP
->fx_addnumber
= 0;
6030 fixP
->fx_addnumber
= 0;
6032 /* We want to use the offset within the data segment of the
6033 symbol, not the actual VMA of the symbol. */
6034 fixP
->fx_addnumber
=
6035 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
6041 /* Generate a reloc for a fixup. */
6044 tc_gen_reloc (seg
, fixp
)
6045 asection
*seg ATTRIBUTE_UNUSED
;
6050 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6052 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6053 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6054 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6055 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6056 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6058 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6059 _("reloc %d not supported by object file format"),
6060 (int) fixp
->fx_r_type
);
6063 reloc
->addend
= fixp
->fx_addnumber
;
6069 ppc_cfi_frame_initial_instructions ()
6071 cfi_add_CFA_def_cfa (1, 0);
6075 tc_ppc_regname_to_dw2regnum (const char *regname
)
6077 unsigned int regnum
= -1;
6081 static struct { char *name
; int dw2regnum
; } regnames
[] =
6083 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6084 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6085 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6086 { "spe_acc", 111 }, { "spefscr", 112 }
6089 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6090 if (strcmp (regnames
[i
].name
, regname
) == 0)
6091 return regnames
[i
].dw2regnum
;
6093 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6095 p
= regname
+ 1 + (regname
[1] == '.');
6096 regnum
= strtoul (p
, &q
, 10);
6097 if (p
== q
|| *q
|| regnum
>= 32)
6099 if (regname
[0] == 'f')
6101 else if (regname
[0] == 'v')
6104 else if (regname
[0] == 'c' && regname
[1] == 'r')
6106 p
= regname
+ 2 + (regname
[2] == '.');
6107 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6109 regnum
= p
[0] - '0' + 68;