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, 2006, 2007 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
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian
;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian
= 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p
= TARGET_REG_NAMES_P
;
87 static void ppc_macro (char *, const struct powerpc_macro
*);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS
*, offsetT
);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_section (int);
112 static void ppc_named_section (int);
113 static void ppc_stabx (int);
114 static void ppc_rename (int);
115 static void ppc_toc (int);
116 static void ppc_xcoff_cons (int);
117 static void ppc_vbyte (int);
121 static void ppc_elf_cons (int);
122 static void ppc_elf_rdata (int);
123 static void ppc_elf_lcomm (int);
127 static void ppc_previous (int);
128 static void ppc_pdata (int);
129 static void ppc_ydata (int);
130 static void ppc_reldata (int);
131 static void ppc_rdata (int);
132 static void ppc_ualong (int);
133 static void ppc_znop (int);
134 static void ppc_pe_comm (int);
135 static void ppc_pe_section (int);
136 static void ppc_pe_function (int);
137 static void ppc_pe_tocd (int);
140 /* Generic assembler global variables which must be defined by all
144 /* This string holds the chars that always start a comment. If the
145 pre-processor is disabled, these aren't very useful. The macro
146 tc_comment_chars points to this. We use this, rather than the
147 usual comment_chars, so that we can switch for Solaris conventions. */
148 static const char ppc_solaris_comment_chars
[] = "#!";
149 static const char ppc_eabi_comment_chars
[] = "#";
151 #ifdef TARGET_SOLARIS_COMMENT
152 const char *ppc_comment_chars
= ppc_solaris_comment_chars
;
154 const char *ppc_comment_chars
= ppc_eabi_comment_chars
;
157 const char comment_chars
[] = "#";
160 /* Characters which start a comment at the beginning of a line. */
161 const char line_comment_chars
[] = "#";
163 /* Characters which may be used to separate multiple commands on a
165 const char line_separator_chars
[] = ";";
167 /* Characters which are used to indicate an exponent in a floating
169 const char EXP_CHARS
[] = "eE";
171 /* Characters which mean that a number is a floating point constant,
173 const char FLT_CHARS
[] = "dD";
175 /* Anything that can start an operand needs to be mentioned here,
176 to stop the input scrubber eating whitespace. */
177 const char ppc_symbol_chars
[] = "%[";
179 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
180 int ppc_cie_data_alignment
;
182 /* The target specific pseudo-ops which we support. */
184 const pseudo_typeS md_pseudo_table
[] =
186 /* Pseudo-ops which must be overridden. */
187 { "byte", ppc_byte
, 0 },
190 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
191 legitimately belong in the obj-*.c file. However, XCOFF is based
192 on COFF, and is only implemented for the RS/6000. We just use
193 obj-coff.c, and add what we need here. */
194 { "comm", ppc_comm
, 0 },
195 { "lcomm", ppc_comm
, 1 },
199 { "bi", ppc_biei
, 0 },
201 { "csect", ppc_csect
, 0 },
202 { "data", ppc_section
, 'd' },
206 { "ei", ppc_biei
, 1 },
208 { "extern", ppc_extern
, 0 },
209 { "function", ppc_function
, 0 },
210 { "lglobl", ppc_lglobl
, 0 },
211 { "rename", ppc_rename
, 0 },
212 { "section", ppc_named_section
, 0 },
213 { "stabx", ppc_stabx
, 0 },
214 { "text", ppc_section
, 't' },
215 { "toc", ppc_toc
, 0 },
216 { "long", ppc_xcoff_cons
, 2 },
217 { "llong", ppc_xcoff_cons
, 3 },
218 { "word", ppc_xcoff_cons
, 1 },
219 { "short", ppc_xcoff_cons
, 1 },
220 { "vbyte", ppc_vbyte
, 0 },
224 { "llong", ppc_elf_cons
, 8 },
225 { "quad", ppc_elf_cons
, 8 },
226 { "long", ppc_elf_cons
, 4 },
227 { "word", ppc_elf_cons
, 2 },
228 { "short", ppc_elf_cons
, 2 },
229 { "rdata", ppc_elf_rdata
, 0 },
230 { "rodata", ppc_elf_rdata
, 0 },
231 { "lcomm", ppc_elf_lcomm
, 0 },
235 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
236 { "previous", ppc_previous
, 0 },
237 { "pdata", ppc_pdata
, 0 },
238 { "ydata", ppc_ydata
, 0 },
239 { "reldata", ppc_reldata
, 0 },
240 { "rdata", ppc_rdata
, 0 },
241 { "ualong", ppc_ualong
, 0 },
242 { "znop", ppc_znop
, 0 },
243 { "comm", ppc_pe_comm
, 0 },
244 { "lcomm", ppc_pe_comm
, 1 },
245 { "section", ppc_pe_section
, 0 },
246 { "function", ppc_pe_function
,0 },
247 { "tocd", ppc_pe_tocd
, 0 },
250 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
252 { "machine", ppc_machine
, 0 },
259 /* Predefined register names if -mregnames (or default for Windows NT).
260 In general, there are lots of them, in an attempt to be compatible
261 with a number of other Windows NT assemblers. */
263 /* Structure to hold information about predefined registers. */
270 /* List of registers that are pre-defined:
272 Each general register has predefined names of the form:
273 1. r<reg_num> which has the value <reg_num>.
274 2. r.<reg_num> which has the value <reg_num>.
276 Each floating point register has predefined names of the form:
277 1. f<reg_num> which has the value <reg_num>.
278 2. f.<reg_num> which has the value <reg_num>.
280 Each vector unit register has predefined names of the form:
281 1. v<reg_num> which has the value <reg_num>.
282 2. v.<reg_num> which has the value <reg_num>.
284 Each condition register has predefined names of the form:
285 1. cr<reg_num> which has the value <reg_num>.
286 2. cr.<reg_num> which has the value <reg_num>.
288 There are individual registers as well:
289 sp or r.sp has the value 1
290 rtoc or r.toc has the value 2
291 fpscr has the value 0
297 dsisr has the value 18
299 sdr1 has the value 25
300 srr0 has the value 26
301 srr1 has the value 27
303 The table is sorted. Suitable for searching by a binary search. */
305 static const struct pd_reg pre_defined_registers
[] =
307 { "cr.0", 0 }, /* Condition Registers */
327 { "dar", 19 }, /* Data Access Register */
328 { "dec", 22 }, /* Decrementer */
329 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
331 { "f.0", 0 }, /* Floating point registers */
399 { "lr", 8 }, /* Link Register */
403 { "r.0", 0 }, /* General Purpose Registers */
436 { "r.sp", 1 }, /* Stack Pointer */
438 { "r.toc", 2 }, /* Pointer to the table of contents */
440 { "r0", 0 }, /* More general purpose registers */
473 { "rtoc", 2 }, /* Table of contents */
475 { "sdr1", 25 }, /* Storage Description Register 1 */
479 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
480 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
482 { "v.0", 0 }, /* Vector registers */
552 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
554 /* Given NAME, find the register number associated with that name, return
555 the integer value associated with the given name or -1 on failure. */
558 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
560 int middle
, low
, high
;
568 middle
= (low
+ high
) / 2;
569 cmp
= strcasecmp (name
, regs
[middle
].name
);
575 return regs
[middle
].value
;
583 * Summary of register_name.
585 * in: Input_line_pointer points to 1st char of operand.
587 * out: A expressionS.
588 * The operand may have been a register: in this case, X_op == O_register,
589 * X_add_number is set to the register number, and truth is returned.
590 * Input_line_pointer->(next non-blank) char after operand, or is in its
595 register_name (expressionS
*expressionP
)
602 /* Find the spelling of the operand. */
603 start
= name
= input_line_pointer
;
604 if (name
[0] == '%' && ISALPHA (name
[1]))
605 name
= ++input_line_pointer
;
607 else if (!reg_names_p
|| !ISALPHA (name
[0]))
610 c
= get_symbol_end ();
611 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
613 /* Put back the delimiting char. */
614 *input_line_pointer
= c
;
616 /* Look to see if it's in the register table. */
619 expressionP
->X_op
= O_register
;
620 expressionP
->X_add_number
= reg_number
;
622 /* Make the rest nice. */
623 expressionP
->X_add_symbol
= NULL
;
624 expressionP
->X_op_symbol
= NULL
;
628 /* Reset the line as if we had not done anything. */
629 input_line_pointer
= start
;
633 /* This function is called for each symbol seen in an expression. It
634 handles the special parsing which PowerPC assemblers are supposed
635 to use for condition codes. */
637 /* Whether to do the special parsing. */
638 static bfd_boolean cr_operand
;
640 /* Names to recognize in a condition code. This table is sorted. */
641 static const struct pd_reg cr_names
[] =
658 /* Parsing function. This returns non-zero if it recognized an
662 ppc_parse_name (const char *name
, expressionS
*expr
)
669 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
674 expr
->X_op
= O_constant
;
675 expr
->X_add_number
= val
;
680 /* Local variables. */
682 /* The type of processor we are assembling for. This is one or more
683 of the PPC_OPCODE flags defined in opcode/ppc.h. */
684 static unsigned long ppc_cpu
= 0;
686 /* Whether to target xcoff64/elf64. */
687 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
689 /* Opcode hash table. */
690 static struct hash_control
*ppc_hash
;
692 /* Macro hash table. */
693 static struct hash_control
*ppc_macro_hash
;
696 /* What type of shared library support to use. */
697 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
699 /* Flags to set in the elf header. */
700 static flagword ppc_flags
= 0;
702 /* Whether this is Solaris or not. */
703 #ifdef TARGET_SOLARIS_COMMENT
704 #define SOLARIS_P TRUE
706 #define SOLARIS_P FALSE
709 static bfd_boolean msolaris
= SOLARIS_P
;
714 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
715 using a bunch of different sections. These assembler sections,
716 however, are all encompassed within the .text or .data sections of
717 the final output file. We handle this by using different
718 subsegments within these main segments. */
720 /* Next subsegment to allocate within the .text segment. */
721 static subsegT ppc_text_subsegment
= 2;
723 /* Linked list of csects in the text section. */
724 static symbolS
*ppc_text_csects
;
726 /* Next subsegment to allocate within the .data segment. */
727 static subsegT ppc_data_subsegment
= 2;
729 /* Linked list of csects in the data section. */
730 static symbolS
*ppc_data_csects
;
732 /* The current csect. */
733 static symbolS
*ppc_current_csect
;
735 /* The RS/6000 assembler uses a TOC which holds addresses of functions
736 and variables. Symbols are put in the TOC with the .tc pseudo-op.
737 A special relocation is used when accessing TOC entries. We handle
738 the TOC as a subsegment within the .data segment. We set it up if
739 we see a .toc pseudo-op, and save the csect symbol here. */
740 static symbolS
*ppc_toc_csect
;
742 /* The first frag in the TOC subsegment. */
743 static fragS
*ppc_toc_frag
;
745 /* The first frag in the first subsegment after the TOC in the .data
746 segment. NULL if there are no subsegments after the TOC. */
747 static fragS
*ppc_after_toc_frag
;
749 /* The current static block. */
750 static symbolS
*ppc_current_block
;
752 /* The COFF debugging section; set by md_begin. This is not the
753 .debug section, but is instead the secret BFD section which will
754 cause BFD to set the section number of a symbol to N_DEBUG. */
755 static asection
*ppc_coff_debug_section
;
757 #endif /* OBJ_XCOFF */
761 /* Various sections that we need for PE coff support. */
762 static segT ydata_section
;
763 static segT pdata_section
;
764 static segT reldata_section
;
765 static segT rdata_section
;
766 static segT tocdata_section
;
768 /* The current section and the previous section. See ppc_previous. */
769 static segT ppc_previous_section
;
770 static segT ppc_current_section
;
775 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
776 #define PPC_APUINFO_ISEL 0x40
777 #define PPC_APUINFO_PMR 0x41
778 #define PPC_APUINFO_RFMCI 0x42
779 #define PPC_APUINFO_CACHELCK 0x43
780 #define PPC_APUINFO_SPE 0x100
781 #define PPC_APUINFO_EFS 0x101
782 #define PPC_APUINFO_BRLOCK 0x102
785 * We keep a list of APUinfo
787 unsigned long *ppc_apuinfo_list
;
788 unsigned int ppc_apuinfo_num
;
789 unsigned int ppc_apuinfo_num_alloc
;
793 const char *const md_shortopts
= "b:l:usm:K:VQ:";
795 const char *const md_shortopts
= "um:";
797 const struct option md_longopts
[] = {
798 {NULL
, no_argument
, NULL
, 0}
800 const size_t md_longopts_size
= sizeof (md_longopts
);
803 /* Handle -m options that set cpu type, and .machine arg. */
806 parse_cpu (const char *arg
)
808 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
810 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
811 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
812 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
813 else if (strcmp (arg
, "pwr") == 0)
814 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
815 /* -m601 means to assemble for the PowerPC 601, which includes
816 instructions that are holdovers from the Power. */
817 else if (strcmp (arg
, "601") == 0)
818 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
819 | PPC_OPCODE_601
| PPC_OPCODE_32
);
820 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
822 else if (strcmp (arg
, "ppc") == 0
823 || strcmp (arg
, "ppc32") == 0
824 || strcmp (arg
, "603") == 0
825 || strcmp (arg
, "604") == 0)
826 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
827 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
828 else if (strcmp (arg
, "403") == 0
829 || strcmp (arg
, "405") == 0)
830 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
831 | PPC_OPCODE_403
| PPC_OPCODE_32
);
832 else if (strcmp (arg
, "440") == 0)
833 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
834 | PPC_OPCODE_440
| PPC_OPCODE_ISEL
| PPC_OPCODE_RFMCI
);
835 else if (strcmp (arg
, "7400") == 0
836 || strcmp (arg
, "7410") == 0
837 || strcmp (arg
, "7450") == 0
838 || strcmp (arg
, "7455") == 0)
839 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
840 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
);
841 else if (strcmp (arg
, "e300") == 0)
842 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
844 else if (strcmp (arg
, "altivec") == 0)
847 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
849 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
851 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
853 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
854 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
855 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
858 else if (strcmp (arg
, "spe") == 0)
861 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
863 ppc_cpu
|= PPC_OPCODE_SPE
;
865 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
867 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
869 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
871 else if (strcmp (arg
, "ppc64bridge") == 0)
873 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
874 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
876 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
877 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
879 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
881 /* -mbooke64 means enable 64-bit BookE support. */
882 else if (strcmp (arg
, "booke64") == 0)
884 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
885 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
887 else if (strcmp (arg
, "power4") == 0)
889 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
890 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
892 else if (strcmp (arg
, "power5") == 0)
894 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
896 | PPC_OPCODE_POWER5
);
898 else if (strcmp (arg
, "power6") == 0)
900 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
901 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
902 | PPC_OPCODE_POWER5
| PPC_OPCODE_POWER6
);
904 else if (strcmp (arg
, "cell") == 0)
906 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
910 /* -mcom means assemble for the common intersection between Power
911 and PowerPC. At present, we just allow the union, rather
912 than the intersection. */
913 else if (strcmp (arg
, "com") == 0)
914 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
915 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
916 else if (strcmp (arg
, "any") == 0)
917 ppc_cpu
|= PPC_OPCODE_ANY
;
925 md_parse_option (int c
, char *arg
)
930 /* -u means that any undefined symbols should be treated as
931 external, which is the default for gas anyhow. */
936 /* Solaris as takes -le (presumably for little endian). For completeness
937 sake, recognize -be also. */
938 if (strcmp (arg
, "e") == 0)
940 target_big_endian
= 0;
941 set_target_endian
= 1;
949 if (strcmp (arg
, "e") == 0)
951 target_big_endian
= 1;
952 set_target_endian
= 1;
960 /* Recognize -K PIC. */
961 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
964 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
972 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
974 if (strcmp (arg
, "64") == 0)
979 as_fatal (_("%s unsupported"), "-a64");
982 else if (strcmp (arg
, "32") == 0)
992 else if (strcmp (arg
, "regnames") == 0)
995 else if (strcmp (arg
, "no-regnames") == 0)
999 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1000 that require relocation. */
1001 else if (strcmp (arg
, "relocatable") == 0)
1003 shlib
= SHLIB_MRELOCATABLE
;
1004 ppc_flags
|= EF_PPC_RELOCATABLE
;
1007 else if (strcmp (arg
, "relocatable-lib") == 0)
1009 shlib
= SHLIB_MRELOCATABLE
;
1010 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1013 /* -memb, set embedded bit. */
1014 else if (strcmp (arg
, "emb") == 0)
1015 ppc_flags
|= EF_PPC_EMB
;
1017 /* -mlittle/-mbig set the endianess. */
1018 else if (strcmp (arg
, "little") == 0
1019 || strcmp (arg
, "little-endian") == 0)
1021 target_big_endian
= 0;
1022 set_target_endian
= 1;
1025 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1027 target_big_endian
= 1;
1028 set_target_endian
= 1;
1031 else if (strcmp (arg
, "solaris") == 0)
1034 ppc_comment_chars
= ppc_solaris_comment_chars
;
1037 else if (strcmp (arg
, "no-solaris") == 0)
1040 ppc_comment_chars
= ppc_eabi_comment_chars
;
1045 as_bad (_("invalid switch -m%s"), arg
);
1051 /* -V: SVR4 argument to print version ID. */
1053 print_version_id ();
1056 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1057 should be emitted or not. FIXME: Not implemented. */
1061 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1062 rather than .stabs.excl, which is ignored by the linker.
1063 FIXME: Not implemented. */
1079 md_show_usage (FILE *stream
)
1081 fprintf (stream
, _("\
1083 -a32 generate ELF32/XCOFF32\n\
1084 -a64 generate ELF64/XCOFF64\n\
1086 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1087 -mpwr generate code for POWER (RIOS1)\n\
1088 -m601 generate code for PowerPC 601\n\
1089 -mppc, -mppc32, -m603, -m604\n\
1090 generate code for PowerPC 603/604\n\
1091 -m403, -m405 generate code for PowerPC 403/405\n\
1092 -m440 generate code for PowerPC 440\n\
1093 -m7400, -m7410, -m7450, -m7455\n\
1094 generate code For PowerPC 7400/7410/7450/7455\n"));
1095 fprintf (stream
, _("\
1096 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1097 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1098 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1099 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1100 -mpower4 generate code for Power4 architecture\n\
1101 -mpower5 generate code for Power5 architecture\n\
1102 -mpower6 generate code for Power6 architecture\n\
1103 -mcell generate code for Cell Broadband Engine architecture\n\
1104 -mcom generate code Power/PowerPC common instructions\n\
1105 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1106 fprintf (stream
, _("\
1107 -maltivec generate code for AltiVec\n\
1108 -me300 generate code for PowerPC e300 family\n\
1109 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1110 -mspe generate code for Motorola SPE instructions\n\
1111 -mregnames Allow symbolic names for registers\n\
1112 -mno-regnames Do not allow symbolic names for registers\n"));
1114 fprintf (stream
, _("\
1115 -mrelocatable support for GCC's -mrelocatble option\n\
1116 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1117 -memb set PPC_EMB bit in ELF flags\n\
1118 -mlittle, -mlittle-endian, -l, -le\n\
1119 generate code for a little endian machine\n\
1120 -mbig, -mbig-endian, -b, -be\n\
1121 generate code for a big endian machine\n\
1122 -msolaris generate code for Solaris\n\
1123 -mno-solaris do not generate code for Solaris\n\
1124 -V print assembler version number\n\
1125 -Qy, -Qn ignored\n"));
1129 /* Set ppc_cpu if it is not already set. */
1134 const char *default_os
= TARGET_OS
;
1135 const char *default_cpu
= TARGET_CPU
;
1137 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1140 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1141 else if (strncmp (default_os
, "aix", 3) == 0
1142 && default_os
[3] >= '4' && default_os
[3] <= '9')
1143 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1144 else if (strncmp (default_os
, "aix3", 4) == 0)
1145 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1146 else if (strcmp (default_cpu
, "rs6000") == 0)
1147 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1148 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1149 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1151 as_fatal (_("Unknown default cpu = %s, os = %s"),
1152 default_cpu
, default_os
);
1156 /* Figure out the BFD architecture to use. This function and ppc_mach
1157 are called well before md_begin, when the output file is opened. */
1159 enum bfd_architecture
1162 const char *default_cpu
= TARGET_CPU
;
1165 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1166 return bfd_arch_powerpc
;
1167 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1168 return bfd_arch_rs6000
;
1169 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1171 if (strcmp (default_cpu
, "rs6000") == 0)
1172 return bfd_arch_rs6000
;
1173 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1174 return bfd_arch_powerpc
;
1177 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1178 return bfd_arch_unknown
;
1185 return bfd_mach_ppc64
;
1186 else if (ppc_arch () == bfd_arch_rs6000
)
1187 return bfd_mach_rs6k
;
1189 return bfd_mach_ppc
;
1193 ppc_target_format (void)
1197 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1199 return "xcoff-powermac";
1202 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1204 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1210 return "elf32-powerpc-vxworks";
1212 return (target_big_endian
1213 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1214 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1219 /* Insert opcodes and macros into hash tables. Called at startup and
1223 ppc_setup_opcodes (void)
1225 const struct powerpc_opcode
*op
;
1226 const struct powerpc_opcode
*op_end
;
1227 const struct powerpc_macro
*macro
;
1228 const struct powerpc_macro
*macro_end
;
1229 bfd_boolean bad_insn
= FALSE
;
1231 if (ppc_hash
!= NULL
)
1232 hash_die (ppc_hash
);
1233 if (ppc_macro_hash
!= NULL
)
1234 hash_die (ppc_macro_hash
);
1236 /* Insert the opcodes into a hash table. */
1237 ppc_hash
= hash_new ();
1239 if (ENABLE_CHECKING
)
1243 /* Check operand masks. Code here and in the disassembler assumes
1244 all the 1's in the mask are contiguous. */
1245 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1247 unsigned long mask
= powerpc_operands
[i
].bitm
;
1248 unsigned long right_bit
;
1251 right_bit
= mask
& -mask
;
1253 right_bit
= mask
& -mask
;
1254 if (mask
!= right_bit
)
1256 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1259 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1260 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1261 sizeof (powerpc_operands
[0])) == 0)
1263 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1270 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1271 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1273 if (ENABLE_CHECKING
)
1275 const unsigned char *o
;
1276 unsigned long omask
= op
->mask
;
1278 /* The mask had better not trim off opcode bits. */
1279 if ((op
->opcode
& omask
) != op
->opcode
)
1281 as_bad (_("mask trims opcode bits for %s"),
1286 /* The operands must not overlap the opcode or each other. */
1287 for (o
= op
->operands
; *o
; ++o
)
1288 if (*o
>= num_powerpc_operands
)
1290 as_bad (_("operand index error for %s"),
1296 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1297 if (operand
->shift
>= 0)
1299 unsigned long mask
= operand
->bitm
<< operand
->shift
;
1302 as_bad (_("operand %d overlap in %s"),
1303 (int) (o
- op
->operands
), op
->name
);
1311 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1312 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1313 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1314 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1315 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1316 /* Certain instructions (eg: extsw) do not exist in the
1317 32-bit BookE instruction set, but they do exist in the
1318 64-bit BookE instruction set, and other PPC instruction
1319 sets. Check to see if the opcode has the BOOKE64 flag set.
1320 If it does make sure that the target CPU is not the BookE32. */
1321 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1322 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1323 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1324 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1325 || ((op
->flags
& PPC_OPCODE_POWER4
)
1326 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1327 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1328 || ((op
->flags
& PPC_OPCODE_POWER5
)
1329 == (ppc_cpu
& PPC_OPCODE_POWER5
)))
1330 && ((op
->flags
& PPC_OPCODE_POWER6
) == 0
1331 || ((op
->flags
& PPC_OPCODE_POWER6
)
1332 == (ppc_cpu
& PPC_OPCODE_POWER6
))))
1336 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1339 /* Ignore Power duplicates for -m601. */
1340 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1341 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1344 as_bad (_("duplicate instruction %s"),
1351 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1352 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1353 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1355 /* Insert the macros into a hash table. */
1356 ppc_macro_hash
= hash_new ();
1358 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1359 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1361 if ((macro
->flags
& ppc_cpu
) != 0)
1365 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1366 if (retval
!= (const char *) NULL
)
1368 as_bad (_("duplicate macro %s"), macro
->name
);
1378 /* This function is called when the assembler starts up. It is called
1379 after the options have been parsed and the output file has been
1387 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1390 /* Set the ELF flags if desired. */
1391 if (ppc_flags
&& !msolaris
)
1392 bfd_set_private_flags (stdoutput
, ppc_flags
);
1395 ppc_setup_opcodes ();
1397 /* Tell the main code what the endianness is if it is not overridden
1399 if (!set_target_endian
)
1401 set_target_endian
= 1;
1402 target_big_endian
= PPC_BIG_ENDIAN
;
1406 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1408 /* Create dummy symbols to serve as initial csects. This forces the
1409 text csects to precede the data csects. These symbols will not
1411 ppc_text_csects
= symbol_make ("dummy\001");
1412 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1413 ppc_data_csects
= symbol_make ("dummy\001");
1414 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1419 ppc_current_section
= text_section
;
1420 ppc_previous_section
= 0;
1429 if (ppc_apuinfo_list
== NULL
)
1432 /* Ok, so write the section info out. We have this layout:
1436 0 8 length of "APUinfo\0"
1437 4 (n*4) number of APU's (4 bytes each)
1440 20 APU#1 first APU's info
1441 24 APU#2 second APU's info
1446 asection
*seg
= now_seg
;
1447 subsegT subseg
= now_subseg
;
1448 asection
*apuinfo_secp
= (asection
*) NULL
;
1451 /* Create the .PPC.EMB.apuinfo section. */
1452 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1453 bfd_set_section_flags (stdoutput
,
1455 SEC_HAS_CONTENTS
| SEC_READONLY
);
1458 md_number_to_chars (p
, (valueT
) 8, 4);
1461 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1464 md_number_to_chars (p
, (valueT
) 2, 4);
1467 strcpy (p
, "APUinfo");
1469 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1472 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1475 frag_align (2, 0, 0);
1477 /* We probably can't restore the current segment, for there likely
1480 subseg_set (seg
, subseg
);
1485 /* Insert an operand value into an instruction. */
1487 static unsigned long
1488 ppc_insert_operand (unsigned long insn
,
1489 const struct powerpc_operand
*operand
,
1494 long min
, max
, right
;
1496 max
= operand
->bitm
;
1500 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1502 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1503 max
= (max
>> 1) & -right
;
1504 min
= ~max
& -right
;
1507 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1510 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1519 /* Some people write constants with the sign extension done by
1520 hand but only up to 32 bits. This shouldn't really be valid,
1521 but, to permit this code to assemble on a 64-bit host, we
1522 sign extend the 32-bit value to 64 bits if so doing makes the
1525 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1526 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1527 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1528 val
= val
- 0x80000000 - 0x80000000;
1530 /* Similarly, people write expressions like ~(1<<15), and expect
1531 this to be OK for a 32-bit unsigned value. */
1533 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1534 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1535 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1536 val
= val
+ 0x80000000 + 0x80000000;
1540 || (val
& (right
- 1)) != 0)
1541 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1544 if (operand
->insert
)
1549 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1550 if (errmsg
!= (const char *) NULL
)
1551 as_bad_where (file
, line
, errmsg
);
1554 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1561 /* Parse @got, etc. and return the desired relocation. */
1562 static bfd_reloc_code_real_type
1563 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1567 unsigned int length
: 8;
1568 unsigned int valid32
: 1;
1569 unsigned int valid64
: 1;
1578 const struct map_bfd
*ptr
;
1580 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1581 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1582 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1584 static const struct map_bfd mapping
[] = {
1585 MAP ("l", BFD_RELOC_LO16
),
1586 MAP ("h", BFD_RELOC_HI16
),
1587 MAP ("ha", BFD_RELOC_HI16_S
),
1588 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1589 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1590 MAP ("got", BFD_RELOC_16_GOTOFF
),
1591 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1592 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1593 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1594 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1595 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1596 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1597 MAP ("copy", BFD_RELOC_PPC_COPY
),
1598 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1599 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1600 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1601 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1602 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1603 MAP ("tls", BFD_RELOC_PPC_TLS
),
1604 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1605 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1606 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1607 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1608 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1609 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1610 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1611 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1612 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1613 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1614 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1615 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1616 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1617 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1618 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1619 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1620 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1621 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1622 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1623 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1624 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1625 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1626 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1627 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1628 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1629 MAP32 ("fixup", BFD_RELOC_CTOR
),
1630 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1631 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1632 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1633 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1634 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1635 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1636 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1637 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1638 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1639 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1640 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1641 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1642 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1643 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1644 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1645 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1646 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1647 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1648 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1649 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1650 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1651 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1652 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1653 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1654 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1655 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1656 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1657 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1658 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1659 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1660 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1661 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1662 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1663 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1664 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1665 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1666 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1667 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1668 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1669 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1670 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1674 return BFD_RELOC_UNUSED
;
1676 for (ch
= *str
, str2
= ident
;
1677 (str2
< ident
+ sizeof (ident
) - 1
1678 && (ISALNUM (ch
) || ch
== '@'));
1681 *str2
++ = TOLOWER (ch
);
1688 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1689 if (ch
== ptr
->string
[0]
1690 && len
== ptr
->length
1691 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1692 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1694 int reloc
= ptr
->reloc
;
1697 if (exp_p
->X_add_number
!= 0
1698 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1699 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1700 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1701 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1702 as_warn (_("identifier+constant@got means identifier@got+constant"));
1704 /* Now check for identifier@suffix+constant. */
1705 if (*str
== '-' || *str
== '+')
1707 char *orig_line
= input_line_pointer
;
1708 expressionS new_exp
;
1710 input_line_pointer
= str
;
1711 expression (&new_exp
);
1712 if (new_exp
.X_op
== O_constant
)
1714 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1715 str
= input_line_pointer
;
1718 if (&input_line_pointer
!= str_p
)
1719 input_line_pointer
= orig_line
;
1723 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1724 && exp_p
->X_op
== O_symbol
1725 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1727 /* Change the symbol so that the dummy .TOC. symbol can be
1728 omitted from the object file. */
1729 exp_p
->X_add_symbol
= &abs_symbol
;
1732 return (bfd_reloc_code_real_type
) reloc
;
1735 return BFD_RELOC_UNUSED
;
1738 /* Like normal .long/.short/.word, except support @got, etc.
1739 Clobbers input_line_pointer, checks end-of-line. */
1741 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1744 bfd_reloc_code_real_type reloc
;
1746 if (is_it_end_of_statement ())
1748 demand_empty_rest_of_line ();
1755 if (exp
.X_op
== O_symbol
1756 && *input_line_pointer
== '@'
1757 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1758 &exp
)) != BFD_RELOC_UNUSED
)
1760 reloc_howto_type
*reloc_howto
;
1763 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1764 size
= bfd_get_reloc_size (reloc_howto
);
1768 as_bad (_("%s relocations do not fit in %d bytes\n"),
1769 reloc_howto
->name
, nbytes
);
1776 p
= frag_more (nbytes
);
1778 if (target_big_endian
)
1779 offset
= nbytes
- size
;
1780 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1785 emit_expr (&exp
, (unsigned int) nbytes
);
1787 while (*input_line_pointer
++ == ',');
1789 /* Put terminator back into stream. */
1790 input_line_pointer
--;
1791 demand_empty_rest_of_line ();
1794 /* Solaris pseduo op to change to the .rodata section. */
1796 ppc_elf_rdata (int xxx
)
1798 char *save_line
= input_line_pointer
;
1799 static char section
[] = ".rodata\n";
1801 /* Just pretend this is .section .rodata */
1802 input_line_pointer
= section
;
1803 obj_elf_section (xxx
);
1805 input_line_pointer
= save_line
;
1808 /* Pseudo op to make file scope bss items. */
1810 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
1823 name
= input_line_pointer
;
1824 c
= get_symbol_end ();
1826 /* just after name is now '\0'. */
1827 p
= input_line_pointer
;
1830 if (*input_line_pointer
!= ',')
1832 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1833 ignore_rest_of_line ();
1837 input_line_pointer
++; /* skip ',' */
1838 if ((size
= get_absolute_expression ()) < 0)
1840 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1841 ignore_rest_of_line ();
1845 /* The third argument to .lcomm is the alignment. */
1846 if (*input_line_pointer
!= ',')
1850 ++input_line_pointer
;
1851 align
= get_absolute_expression ();
1854 as_warn (_("ignoring bad alignment"));
1860 symbolP
= symbol_find_or_make (name
);
1863 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1865 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1866 S_GET_NAME (symbolP
));
1867 ignore_rest_of_line ();
1871 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1873 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1874 S_GET_NAME (symbolP
),
1875 (long) S_GET_VALUE (symbolP
),
1878 ignore_rest_of_line ();
1884 old_subsec
= now_subseg
;
1887 /* Convert to a power of 2 alignment. */
1888 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1891 as_bad (_("Common alignment not a power of 2"));
1892 ignore_rest_of_line ();
1899 record_alignment (bss_section
, align2
);
1900 subseg_set (bss_section
, 0);
1902 frag_align (align2
, 0, 0);
1903 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1904 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1905 symbol_set_frag (symbolP
, frag_now
);
1906 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1909 S_SET_SIZE (symbolP
, size
);
1910 S_SET_SEGMENT (symbolP
, bss_section
);
1911 subseg_set (old_sec
, old_subsec
);
1912 demand_empty_rest_of_line ();
1915 /* Validate any relocations emitted for -mrelocatable, possibly adding
1916 fixups for word relocations in writable segments, so we can adjust
1919 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
1921 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1930 case SHLIB_MRELOCATABLE
:
1931 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1932 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1933 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1934 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1935 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1936 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1937 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1938 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1939 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1940 && (seg
->flags
& SEC_LOAD
) != 0
1941 && strcmp (segment_name (seg
), ".got2") != 0
1942 && strcmp (segment_name (seg
), ".dtors") != 0
1943 && strcmp (segment_name (seg
), ".ctors") != 0
1944 && strcmp (segment_name (seg
), ".fixup") != 0
1945 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1946 && strcmp (segment_name (seg
), ".eh_frame") != 0
1947 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1949 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1950 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1952 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1953 _("Relocation cannot be done when using -mrelocatable"));
1960 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1961 function descriptor sym if the corresponding code sym is used. */
1964 ppc_frob_file_before_adjust (void)
1972 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
1979 name
= S_GET_NAME (symp
);
1983 if (! S_IS_WEAK (symp
)
1984 || S_IS_DEFINED (symp
))
1987 len
= strlen (name
) + 1;
1988 dotname
= xmalloc (len
+ 1);
1990 memcpy (dotname
+ 1, name
, len
);
1991 dotsym
= symbol_find_noref (dotname
, 1);
1993 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
1994 || symbol_used_in_reloc_p (dotsym
)))
1995 symbol_mark_used (symp
);
1999 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2001 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2002 as_warn (_("TOC section size exceeds 64k"));
2004 /* Don't emit .TOC. symbol. */
2005 symp
= symbol_find (".TOC.");
2007 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2009 #endif /* OBJ_ELF */
2014 * Summary of parse_toc_entry.
2016 * in: Input_line_pointer points to the '[' in one of:
2018 * [toc] [tocv] [toc32] [toc64]
2020 * Anything else is an error of one kind or another.
2023 * return value: success or failure
2024 * toc_kind: kind of toc reference
2025 * input_line_pointer:
2026 * success: first char after the ']'
2027 * failure: unchanged
2031 * [toc] - rv == success, toc_kind = default_toc
2032 * [tocv] - rv == success, toc_kind = data_in_toc
2033 * [toc32] - rv == success, toc_kind = must_be_32
2034 * [toc64] - rv == success, toc_kind = must_be_64
2038 enum toc_size_qualifier
2040 default_toc
, /* The toc cell constructed should be the system default size */
2041 data_in_toc
, /* This is a direct reference to a toc cell */
2042 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2043 must_be_64
/* The toc cell constructed must be 64 bits wide */
2047 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2052 enum toc_size_qualifier t
;
2054 /* Save the input_line_pointer. */
2055 start
= input_line_pointer
;
2057 /* Skip over the '[' , and whitespace. */
2058 ++input_line_pointer
;
2061 /* Find the spelling of the operand. */
2062 toc_spec
= input_line_pointer
;
2063 c
= get_symbol_end ();
2065 if (strcmp (toc_spec
, "toc") == 0)
2069 else if (strcmp (toc_spec
, "tocv") == 0)
2073 else if (strcmp (toc_spec
, "toc32") == 0)
2077 else if (strcmp (toc_spec
, "toc64") == 0)
2083 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2084 *input_line_pointer
= c
;
2085 input_line_pointer
= start
;
2089 /* Now find the ']'. */
2090 *input_line_pointer
= c
;
2092 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2093 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2097 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2098 input_line_pointer
= start
;
2109 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2111 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2115 /* Check we don't already exist. */
2116 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2117 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2120 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2122 if (ppc_apuinfo_num_alloc
== 0)
2124 ppc_apuinfo_num_alloc
= 4;
2125 ppc_apuinfo_list
= (unsigned long *)
2126 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2130 ppc_apuinfo_num_alloc
+= 4;
2131 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2132 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2135 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2141 /* We need to keep a list of fixups. We can't simply generate them as
2142 we go, because that would require us to first create the frag, and
2143 that would screw up references to ``.''. */
2149 bfd_reloc_code_real_type reloc
;
2152 #define MAX_INSN_FIXUPS (5)
2154 /* This routine is called for each instruction to be assembled. */
2157 md_assemble (char *str
)
2160 const struct powerpc_opcode
*opcode
;
2162 const unsigned char *opindex_ptr
;
2166 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2172 bfd_reloc_code_real_type reloc
;
2175 /* Get the opcode. */
2176 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2181 /* Look up the opcode in the hash table. */
2182 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2183 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2185 const struct powerpc_macro
*macro
;
2187 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2188 if (macro
== (const struct powerpc_macro
*) NULL
)
2189 as_bad (_("Unrecognized opcode: `%s'"), str
);
2191 ppc_macro (s
, macro
);
2196 insn
= opcode
->opcode
;
2199 while (ISSPACE (*str
))
2202 /* PowerPC operands are just expressions. The only real issue is
2203 that a few operand types are optional. All cases which might use
2204 an optional operand separate the operands only with commas (in some
2205 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2206 have optional operands). Most instructions with optional operands
2207 have only one. Those that have more than one optional operand can
2208 take either all their operands or none. So, before we start seriously
2209 parsing the operands, we check to see if we have optional operands,
2210 and if we do, we count the number of commas to see which operands
2211 have been omitted. */
2213 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2215 const struct powerpc_operand
*operand
;
2217 operand
= &powerpc_operands
[*opindex_ptr
];
2218 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2220 unsigned int opcount
;
2221 unsigned int num_operands_expected
;
2224 /* There is an optional operand. Count the number of
2225 commas in the input line. */
2232 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2239 /* Compute the number of expected operands.
2240 Do not count fake operands. */
2241 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2242 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2243 ++ num_operands_expected
;
2245 /* If there are fewer operands in the line then are called
2246 for by the instruction, we want to skip the optional
2248 if (opcount
< num_operands_expected
)
2255 /* Gather the operands. */
2259 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2261 const struct powerpc_operand
*operand
;
2267 if (next_opindex
== 0)
2268 operand
= &powerpc_operands
[*opindex_ptr
];
2271 operand
= &powerpc_operands
[next_opindex
];
2276 /* If this is a fake operand, then we do not expect anything
2278 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2280 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2281 if (errmsg
!= (const char *) NULL
)
2286 /* If this is an optional operand, and we are skipping it, just
2288 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2291 if (operand
->insert
)
2293 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2294 if (errmsg
!= (const char *) NULL
)
2297 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2298 next_opindex
= *opindex_ptr
+ 1;
2302 /* Gather the operand. */
2303 hold
= input_line_pointer
;
2304 input_line_pointer
= str
;
2307 if (*input_line_pointer
== '[')
2309 /* We are expecting something like the second argument here:
2311 * lwz r4,[toc].GS.0.static_int(rtoc)
2312 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2313 * The argument following the `]' must be a symbol name, and the
2314 * register must be the toc register: 'rtoc' or '2'
2316 * The effect is to 0 as the displacement field
2317 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2318 * the appropriate variation) reloc against it based on the symbol.
2319 * The linker will build the toc, and insert the resolved toc offset.
2322 * o The size of the toc entry is currently assumed to be
2323 * 32 bits. This should not be assumed to be a hard coded
2325 * o In an effort to cope with a change from 32 to 64 bits,
2326 * there are also toc entries that are specified to be
2327 * either 32 or 64 bits:
2328 * lwz r4,[toc32].GS.0.static_int(rtoc)
2329 * lwz r4,[toc64].GS.0.static_int(rtoc)
2330 * These demand toc entries of the specified size, and the
2331 * instruction probably requires it.
2335 enum toc_size_qualifier toc_kind
;
2336 bfd_reloc_code_real_type toc_reloc
;
2338 /* Go parse off the [tocXX] part. */
2339 valid_toc
= parse_toc_entry (&toc_kind
);
2343 /* Note: message has already been issued.
2344 FIXME: what sort of recovery should we do?
2345 demand_rest_of_line (); return; ? */
2348 /* Now get the symbol following the ']'. */
2354 /* In this case, we may not have seen the symbol yet,
2355 since it is allowed to appear on a .extern or .globl
2356 or just be a label in the .data section. */
2357 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2360 /* 1. The symbol must be defined and either in the toc
2361 section, or a global.
2362 2. The reloc generated must have the TOCDEFN flag set
2363 in upper bit mess of the reloc type.
2364 FIXME: It's a little confusing what the tocv
2365 qualifier can be used for. At the very least, I've
2366 seen three uses, only one of which I'm sure I can
2368 if (ex
.X_op
== O_symbol
)
2370 assert (ex
.X_add_symbol
!= NULL
);
2371 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2374 as_bad (_("[tocv] symbol is not a toc symbol"));
2378 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2381 /* FIXME: these next two specifically specify 32/64 bit
2382 toc entries. We don't support them today. Is this
2383 the right way to say that? */
2384 toc_reloc
= BFD_RELOC_UNUSED
;
2385 as_bad (_("Unimplemented toc32 expression modifier"));
2388 /* FIXME: see above. */
2389 toc_reloc
= BFD_RELOC_UNUSED
;
2390 as_bad (_("Unimplemented toc64 expression modifier"));
2394 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2400 /* We need to generate a fixup for this expression. */
2401 if (fc
>= MAX_INSN_FIXUPS
)
2402 as_fatal (_("too many fixups"));
2404 fixups
[fc
].reloc
= toc_reloc
;
2405 fixups
[fc
].exp
= ex
;
2406 fixups
[fc
].opindex
= *opindex_ptr
;
2409 /* Ok. We've set up the fixup for the instruction. Now make it
2410 look like the constant 0 was found here. */
2412 ex
.X_op
= O_constant
;
2413 ex
.X_add_number
= 0;
2414 ex
.X_add_symbol
= NULL
;
2415 ex
.X_op_symbol
= NULL
;
2421 if (! register_name (&ex
))
2423 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2430 str
= input_line_pointer
;
2431 input_line_pointer
= hold
;
2433 if (ex
.X_op
== O_illegal
)
2434 as_bad (_("illegal operand"));
2435 else if (ex
.X_op
== O_absent
)
2436 as_bad (_("missing operand"));
2437 else if (ex
.X_op
== O_register
)
2439 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2442 else if (ex
.X_op
== O_constant
)
2445 /* Allow @HA, @L, @H on constants. */
2446 char *orig_str
= str
;
2448 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2455 case BFD_RELOC_LO16
:
2456 /* X_unsigned is the default, so if the user has done
2457 something which cleared it, we always produce a
2459 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2460 ex
.X_add_number
&= 0xffff;
2462 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2465 case BFD_RELOC_HI16
:
2466 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2467 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2469 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2472 case BFD_RELOC_HI16_S
:
2473 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2474 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2476 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2479 case BFD_RELOC_PPC64_HIGHER
:
2480 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2481 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2483 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2486 case BFD_RELOC_PPC64_HIGHER_S
:
2487 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2488 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2490 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2493 case BFD_RELOC_PPC64_HIGHEST
:
2494 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2495 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2497 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2500 case BFD_RELOC_PPC64_HIGHEST_S
:
2501 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2502 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2504 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2507 #endif /* OBJ_ELF */
2508 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2512 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2514 /* Some TLS tweaks. */
2519 case BFD_RELOC_PPC_TLS
:
2520 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2523 /* We'll only use the 32 (or 64) bit form of these relocations
2524 in constants. Instructions get the 16 bit form. */
2525 case BFD_RELOC_PPC_DTPREL
:
2526 reloc
= BFD_RELOC_PPC_DTPREL16
;
2528 case BFD_RELOC_PPC_TPREL
:
2529 reloc
= BFD_RELOC_PPC_TPREL16
;
2533 /* For the absolute forms of branches, convert the PC
2534 relative form back into the absolute. */
2535 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2539 case BFD_RELOC_PPC_B26
:
2540 reloc
= BFD_RELOC_PPC_BA26
;
2542 case BFD_RELOC_PPC_B16
:
2543 reloc
= BFD_RELOC_PPC_BA16
;
2545 case BFD_RELOC_PPC_B16_BRTAKEN
:
2546 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2548 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2549 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2557 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2562 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2564 case BFD_RELOC_LO16
:
2565 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2567 case BFD_RELOC_16_GOTOFF
:
2568 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2570 case BFD_RELOC_LO16_GOTOFF
:
2571 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2573 case BFD_RELOC_LO16_PLTOFF
:
2574 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2576 case BFD_RELOC_16_BASEREL
:
2577 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2579 case BFD_RELOC_LO16_BASEREL
:
2580 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2582 case BFD_RELOC_PPC_TOC16
:
2583 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2585 case BFD_RELOC_PPC64_TOC16_LO
:
2586 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2588 case BFD_RELOC_PPC64_PLTGOT16
:
2589 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2591 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2592 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2594 case BFD_RELOC_PPC_DTPREL16
:
2595 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2597 case BFD_RELOC_PPC_DTPREL16_LO
:
2598 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2600 case BFD_RELOC_PPC_TPREL16
:
2601 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2603 case BFD_RELOC_PPC_TPREL16_LO
:
2604 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2606 case BFD_RELOC_PPC_GOT_DTPREL16
:
2607 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2608 case BFD_RELOC_PPC_GOT_TPREL16
:
2609 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2612 as_bad (_("unsupported relocation for DS offset field"));
2617 /* We need to generate a fixup for this expression. */
2618 if (fc
>= MAX_INSN_FIXUPS
)
2619 as_fatal (_("too many fixups"));
2620 fixups
[fc
].exp
= ex
;
2621 fixups
[fc
].opindex
= 0;
2622 fixups
[fc
].reloc
= reloc
;
2625 #endif /* OBJ_ELF */
2629 /* We need to generate a fixup for this expression. */
2630 if (fc
>= MAX_INSN_FIXUPS
)
2631 as_fatal (_("too many fixups"));
2632 fixups
[fc
].exp
= ex
;
2633 fixups
[fc
].opindex
= *opindex_ptr
;
2634 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2643 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2651 /* The call to expression should have advanced str past any
2654 && (endc
!= ',' || *str
!= '\0'))
2656 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2664 while (ISSPACE (*str
))
2668 as_bad (_("junk at end of line: `%s'"), str
);
2671 /* Do we need/want a APUinfo section? */
2672 if (ppc_cpu
& (PPC_OPCODE_SPE
2673 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2674 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2675 | PPC_OPCODE_RFMCI
))
2677 /* These are all version "1". */
2678 if (opcode
->flags
& PPC_OPCODE_SPE
)
2679 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2680 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2681 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2682 if (opcode
->flags
& PPC_OPCODE_EFS
)
2683 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2684 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2685 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2686 if (opcode
->flags
& PPC_OPCODE_PMR
)
2687 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2688 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2689 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2690 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2691 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2695 /* Write out the instruction. */
2697 addr_mod
= frag_now_fix () & 3;
2698 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2699 as_bad (_("instruction address is not a multiple of 4"));
2700 frag_now
->insn_addr
= addr_mod
;
2701 frag_now
->has_code
= 1;
2702 md_number_to_chars (f
, insn
, 4);
2705 dwarf2_emit_insn (4);
2708 /* Create any fixups. At this point we do not use a
2709 bfd_reloc_code_real_type, but instead just use the
2710 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2711 handle fixups for any operand type, although that is admittedly
2712 not a very exciting feature. We pick a BFD reloc type in
2714 for (i
= 0; i
< fc
; i
++)
2716 const struct powerpc_operand
*operand
;
2718 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2719 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2721 reloc_howto_type
*reloc_howto
;
2726 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2730 size
= bfd_get_reloc_size (reloc_howto
);
2731 offset
= target_big_endian
? (4 - size
) : 0;
2733 if (size
< 1 || size
> 4)
2736 fixP
= fix_new_exp (frag_now
,
2737 f
- frag_now
->fr_literal
+ offset
,
2740 reloc_howto
->pc_relative
,
2743 /* Turn off complaints that the addend is too large for things like
2745 switch (fixups
[i
].reloc
)
2747 case BFD_RELOC_16_GOTOFF
:
2748 case BFD_RELOC_PPC_TOC16
:
2749 case BFD_RELOC_LO16
:
2750 case BFD_RELOC_HI16
:
2751 case BFD_RELOC_HI16_S
:
2753 case BFD_RELOC_PPC64_HIGHER
:
2754 case BFD_RELOC_PPC64_HIGHER_S
:
2755 case BFD_RELOC_PPC64_HIGHEST
:
2756 case BFD_RELOC_PPC64_HIGHEST_S
:
2758 fixP
->fx_no_overflow
= 1;
2765 fix_new_exp (frag_now
,
2766 f
- frag_now
->fr_literal
,
2769 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2770 ((bfd_reloc_code_real_type
)
2771 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2775 /* Handle a macro. Gather all the operands, transform them as
2776 described by the macro, and call md_assemble recursively. All the
2777 operands are separated by commas; we don't accept parentheses
2778 around operands here. */
2781 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
2792 /* Gather the users operands into the operands array. */
2797 if (count
>= sizeof operands
/ sizeof operands
[0])
2799 operands
[count
++] = s
;
2800 s
= strchr (s
, ',');
2801 if (s
== (char *) NULL
)
2806 if (count
!= macro
->operands
)
2808 as_bad (_("wrong number of operands"));
2812 /* Work out how large the string must be (the size is unbounded
2813 because it includes user input). */
2815 format
= macro
->format
;
2816 while (*format
!= '\0')
2825 arg
= strtol (format
+ 1, &send
, 10);
2826 know (send
!= format
&& arg
< count
);
2827 len
+= strlen (operands
[arg
]);
2832 /* Put the string together. */
2833 complete
= s
= (char *) alloca (len
+ 1);
2834 format
= macro
->format
;
2835 while (*format
!= '\0')
2841 arg
= strtol (format
+ 1, &send
, 10);
2842 strcpy (s
, operands
[arg
]);
2849 /* Assemble the constructed instruction. */
2850 md_assemble (complete
);
2854 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2857 ppc_section_letter (int letter
, char **ptr_msg
)
2862 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2867 ppc_section_word (char *str
, size_t len
)
2869 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2876 ppc_section_type (char *str
, size_t len
)
2878 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2885 ppc_section_flags (int flags
, int attr
, int type
)
2887 if (type
== SHT_ORDERED
)
2888 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2890 if (attr
& SHF_EXCLUDE
)
2891 flags
|= SEC_EXCLUDE
;
2895 #endif /* OBJ_ELF */
2898 /* Pseudo-op handling. */
2900 /* The .byte pseudo-op. This is similar to the normal .byte
2901 pseudo-op, but it can also take a single ASCII string. */
2904 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
2906 if (*input_line_pointer
!= '\"')
2912 /* Gather characters. A real double quote is doubled. Unusual
2913 characters are not permitted. */
2914 ++input_line_pointer
;
2919 c
= *input_line_pointer
++;
2923 if (*input_line_pointer
!= '\"')
2925 ++input_line_pointer
;
2928 FRAG_APPEND_1_CHAR (c
);
2931 demand_empty_rest_of_line ();
2936 /* XCOFF specific pseudo-op handling. */
2938 /* This is set if we are creating a .stabx symbol, since we don't want
2939 to handle symbol suffixes for such symbols. */
2940 static bfd_boolean ppc_stab_symbol
;
2942 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2943 symbols in the .bss segment as though they were local common
2944 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2945 aligns .comm and .lcomm to 4 bytes. */
2948 ppc_comm (int lcomm
)
2950 asection
*current_seg
= now_seg
;
2951 subsegT current_subseg
= now_subseg
;
2957 symbolS
*lcomm_sym
= NULL
;
2961 name
= input_line_pointer
;
2962 endc
= get_symbol_end ();
2963 end_name
= input_line_pointer
;
2966 if (*input_line_pointer
!= ',')
2968 as_bad (_("missing size"));
2969 ignore_rest_of_line ();
2972 ++input_line_pointer
;
2974 size
= get_absolute_expression ();
2977 as_bad (_("negative size"));
2978 ignore_rest_of_line ();
2984 /* The third argument to .comm is the alignment. */
2985 if (*input_line_pointer
!= ',')
2989 ++input_line_pointer
;
2990 align
= get_absolute_expression ();
2993 as_warn (_("ignoring bad alignment"));
3008 /* The third argument to .lcomm appears to be the real local
3009 common symbol to create. References to the symbol named in
3010 the first argument are turned into references to the third
3012 if (*input_line_pointer
!= ',')
3014 as_bad (_("missing real symbol name"));
3015 ignore_rest_of_line ();
3018 ++input_line_pointer
;
3020 lcomm_name
= input_line_pointer
;
3021 lcomm_endc
= get_symbol_end ();
3023 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3025 *input_line_pointer
= lcomm_endc
;
3029 sym
= symbol_find_or_make (name
);
3032 if (S_IS_DEFINED (sym
)
3033 || S_GET_VALUE (sym
) != 0)
3035 as_bad (_("attempt to redefine symbol"));
3036 ignore_rest_of_line ();
3040 record_alignment (bss_section
, align
);
3043 || ! S_IS_DEFINED (lcomm_sym
))
3052 S_SET_EXTERNAL (sym
);
3056 symbol_get_tc (lcomm_sym
)->output
= 1;
3057 def_sym
= lcomm_sym
;
3061 subseg_set (bss_section
, 1);
3062 frag_align (align
, 0, 0);
3064 symbol_set_frag (def_sym
, frag_now
);
3065 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3066 def_size
, (char *) NULL
);
3068 S_SET_SEGMENT (def_sym
, bss_section
);
3069 symbol_get_tc (def_sym
)->align
= align
;
3073 /* Align the size of lcomm_sym. */
3074 symbol_get_frag (lcomm_sym
)->fr_offset
=
3075 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3076 &~ ((1 << align
) - 1));
3077 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3078 symbol_get_tc (lcomm_sym
)->align
= align
;
3083 /* Make sym an offset from lcomm_sym. */
3084 S_SET_SEGMENT (sym
, bss_section
);
3085 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3086 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3087 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3090 subseg_set (current_seg
, current_subseg
);
3092 demand_empty_rest_of_line ();
3095 /* The .csect pseudo-op. This switches us into a different
3096 subsegment. The first argument is a symbol whose value is the
3097 start of the .csect. In COFF, csect symbols get special aux
3098 entries defined by the x_csect field of union internal_auxent. The
3099 optional second argument is the alignment (the default is 2). */
3102 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3109 name
= input_line_pointer
;
3110 endc
= get_symbol_end ();
3112 sym
= symbol_find_or_make (name
);
3114 *input_line_pointer
= endc
;
3116 if (S_GET_NAME (sym
)[0] == '\0')
3118 /* An unnamed csect is assumed to be [PR]. */
3119 symbol_get_tc (sym
)->class = XMC_PR
;
3123 if (*input_line_pointer
== ',')
3125 ++input_line_pointer
;
3126 align
= get_absolute_expression ();
3129 ppc_change_csect (sym
, align
);
3131 demand_empty_rest_of_line ();
3134 /* Change to a different csect. */
3137 ppc_change_csect (symbolS
*sym
, offsetT align
)
3139 if (S_IS_DEFINED (sym
))
3140 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3150 /* This is a new csect. We need to look at the symbol class to
3151 figure out whether it should go in the text section or the
3155 switch (symbol_get_tc (sym
)->class)
3165 S_SET_SEGMENT (sym
, text_section
);
3166 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3167 ++ppc_text_subsegment
;
3168 list_ptr
= &ppc_text_csects
;
3178 if (ppc_toc_csect
!= NULL
3179 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3180 == ppc_data_subsegment
))
3182 S_SET_SEGMENT (sym
, data_section
);
3183 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3184 ++ppc_data_subsegment
;
3185 list_ptr
= &ppc_data_csects
;
3191 /* We set the obstack chunk size to a small value before
3192 changing subsegments, so that we don't use a lot of memory
3193 space for what may be a small section. */
3194 hold_chunksize
= chunksize
;
3197 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3198 symbol_get_tc (sym
)->subseg
);
3200 chunksize
= hold_chunksize
;
3203 ppc_after_toc_frag
= frag_now
;
3205 record_alignment (sec
, align
);
3207 frag_align_code (align
, 0);
3209 frag_align (align
, 0, 0);
3211 symbol_set_frag (sym
, frag_now
);
3212 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3214 symbol_get_tc (sym
)->align
= align
;
3215 symbol_get_tc (sym
)->output
= 1;
3216 symbol_get_tc (sym
)->within
= sym
;
3218 for (list
= *list_ptr
;
3219 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3220 list
= symbol_get_tc (list
)->next
)
3222 symbol_get_tc (list
)->next
= sym
;
3224 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3225 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3229 ppc_current_csect
= sym
;
3232 /* This function handles the .text and .data pseudo-ops. These
3233 pseudo-ops aren't really used by XCOFF; we implement them for the
3234 convenience of people who aren't used to XCOFF. */
3237 ppc_section (int type
)
3244 else if (type
== 'd')
3249 sym
= symbol_find_or_make (name
);
3251 ppc_change_csect (sym
, 2);
3253 demand_empty_rest_of_line ();
3256 /* This function handles the .section pseudo-op. This is mostly to
3257 give an error, since XCOFF only supports .text, .data and .bss, but
3258 we do permit the user to name the text or data section. */
3261 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3264 const char *real_name
;
3268 user_name
= input_line_pointer
;
3269 c
= get_symbol_end ();
3271 if (strcmp (user_name
, ".text") == 0)
3272 real_name
= ".text[PR]";
3273 else if (strcmp (user_name
, ".data") == 0)
3274 real_name
= ".data[RW]";
3277 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3278 *input_line_pointer
= c
;
3279 ignore_rest_of_line ();
3283 *input_line_pointer
= c
;
3285 sym
= symbol_find_or_make (real_name
);
3287 ppc_change_csect (sym
, 2);
3289 demand_empty_rest_of_line ();
3292 /* The .extern pseudo-op. We create an undefined symbol. */
3295 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3300 name
= input_line_pointer
;
3301 endc
= get_symbol_end ();
3303 (void) symbol_find_or_make (name
);
3305 *input_line_pointer
= endc
;
3307 demand_empty_rest_of_line ();
3310 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3313 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3319 name
= input_line_pointer
;
3320 endc
= get_symbol_end ();
3322 sym
= symbol_find_or_make (name
);
3324 *input_line_pointer
= endc
;
3326 symbol_get_tc (sym
)->output
= 1;
3328 demand_empty_rest_of_line ();
3331 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3332 although I don't know why it bothers. */
3335 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
3342 name
= input_line_pointer
;
3343 endc
= get_symbol_end ();
3345 sym
= symbol_find_or_make (name
);
3347 *input_line_pointer
= endc
;
3349 if (*input_line_pointer
!= ',')
3351 as_bad (_("missing rename string"));
3352 ignore_rest_of_line ();
3355 ++input_line_pointer
;
3357 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3359 demand_empty_rest_of_line ();
3362 /* The .stabx pseudo-op. This is similar to a normal .stabs
3363 pseudo-op, but slightly different. A sample is
3364 .stabx "main:F-1",.main,142,0
3365 The first argument is the symbol name to create. The second is the
3366 value, and the third is the storage class. The fourth seems to be
3367 always zero, and I am assuming it is the type. */
3370 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
3377 name
= demand_copy_C_string (&len
);
3379 if (*input_line_pointer
!= ',')
3381 as_bad (_("missing value"));
3384 ++input_line_pointer
;
3386 ppc_stab_symbol
= TRUE
;
3387 sym
= symbol_make (name
);
3388 ppc_stab_symbol
= FALSE
;
3390 symbol_get_tc (sym
)->real_name
= name
;
3392 (void) expression (&exp
);
3399 as_bad (_("illegal .stabx expression; zero assumed"));
3400 exp
.X_add_number
= 0;
3403 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3404 symbol_set_frag (sym
, &zero_address_frag
);
3408 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3409 symbol_set_value_expression (sym
, &exp
);
3413 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3414 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3419 /* The value is some complex expression. This will probably
3420 fail at some later point, but this is probably the right
3421 thing to do here. */
3422 symbol_set_value_expression (sym
, &exp
);
3426 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3427 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3429 if (*input_line_pointer
!= ',')
3431 as_bad (_("missing class"));
3434 ++input_line_pointer
;
3436 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3438 if (*input_line_pointer
!= ',')
3440 as_bad (_("missing type"));
3443 ++input_line_pointer
;
3445 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3447 symbol_get_tc (sym
)->output
= 1;
3449 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3451 symbol_get_tc (sym
)->within
= ppc_current_block
;
3456 .stabx "z",arrays_,133,0
3459 .comm arrays_,13768,3
3461 resolve_symbol_value will copy the exp's "within" into sym's when the
3462 offset is 0. Since this seems to be corner case problem,
3463 only do the correction for storage class C_STSYM. A better solution
3464 would be to have the tc field updated in ppc_symbol_new_hook. */
3466 if (exp
.X_op
== O_symbol
)
3468 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3472 if (exp
.X_op
!= O_symbol
3473 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3474 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3475 ppc_frob_label (sym
);
3478 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3479 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3480 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3481 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3484 demand_empty_rest_of_line ();
3487 /* The .function pseudo-op. This takes several arguments. The first
3488 argument seems to be the external name of the symbol. The second
3489 argument seems to be the label for the start of the function. gcc
3490 uses the same name for both. I have no idea what the third and
3491 fourth arguments are meant to be. The optional fifth argument is
3492 an expression for the size of the function. In COFF this symbol
3493 gets an aux entry like that used for a csect. */
3496 ppc_function (int ignore ATTRIBUTE_UNUSED
)
3504 name
= input_line_pointer
;
3505 endc
= get_symbol_end ();
3507 /* Ignore any [PR] suffix. */
3508 name
= ppc_canonicalize_symbol_name (name
);
3509 s
= strchr (name
, '[');
3510 if (s
!= (char *) NULL
3511 && strcmp (s
+ 1, "PR]") == 0)
3514 ext_sym
= symbol_find_or_make (name
);
3516 *input_line_pointer
= endc
;
3518 if (*input_line_pointer
!= ',')
3520 as_bad (_("missing symbol name"));
3521 ignore_rest_of_line ();
3524 ++input_line_pointer
;
3526 name
= input_line_pointer
;
3527 endc
= get_symbol_end ();
3529 lab_sym
= symbol_find_or_make (name
);
3531 *input_line_pointer
= endc
;
3533 if (ext_sym
!= lab_sym
)
3537 exp
.X_op
= O_symbol
;
3538 exp
.X_add_symbol
= lab_sym
;
3539 exp
.X_op_symbol
= NULL
;
3540 exp
.X_add_number
= 0;
3542 symbol_set_value_expression (ext_sym
, &exp
);
3545 if (symbol_get_tc (ext_sym
)->class == -1)
3546 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3547 symbol_get_tc (ext_sym
)->output
= 1;
3549 if (*input_line_pointer
== ',')
3553 /* Ignore the third argument. */
3554 ++input_line_pointer
;
3555 expression (&ignore
);
3556 if (*input_line_pointer
== ',')
3558 /* Ignore the fourth argument. */
3559 ++input_line_pointer
;
3560 expression (&ignore
);
3561 if (*input_line_pointer
== ',')
3563 /* The fifth argument is the function size. */
3564 ++input_line_pointer
;
3565 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3568 &zero_address_frag
);
3569 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3574 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3575 SF_SET_FUNCTION (ext_sym
);
3576 SF_SET_PROCESS (ext_sym
);
3577 coff_add_linesym (ext_sym
);
3579 demand_empty_rest_of_line ();
3582 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3583 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3584 with the correct line number */
3586 static symbolS
*saved_bi_sym
= 0;
3589 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
3593 sym
= symbol_make (".bf");
3594 S_SET_SEGMENT (sym
, text_section
);
3595 symbol_set_frag (sym
, frag_now
);
3596 S_SET_VALUE (sym
, frag_now_fix ());
3597 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3599 coff_line_base
= get_absolute_expression ();
3601 S_SET_NUMBER_AUXILIARY (sym
, 1);
3602 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3604 /* Line number for bi. */
3607 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3612 symbol_get_tc (sym
)->output
= 1;
3614 ppc_frob_label (sym
);
3616 demand_empty_rest_of_line ();
3619 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3620 ".ef", except that the line number is absolute, not relative to the
3621 most recent ".bf" symbol. */
3624 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
3628 sym
= symbol_make (".ef");
3629 S_SET_SEGMENT (sym
, text_section
);
3630 symbol_set_frag (sym
, frag_now
);
3631 S_SET_VALUE (sym
, frag_now_fix ());
3632 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3633 S_SET_NUMBER_AUXILIARY (sym
, 1);
3634 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3635 symbol_get_tc (sym
)->output
= 1;
3637 ppc_frob_label (sym
);
3639 demand_empty_rest_of_line ();
3642 /* The .bi and .ei pseudo-ops. These take a string argument and
3643 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3644 the symbol list. The value of .bi will be know when the next .bf
3650 static symbolS
*last_biei
;
3657 name
= demand_copy_C_string (&len
);
3659 /* The value of these symbols is actually file offset. Here we set
3660 the value to the index into the line number entries. In
3661 ppc_frob_symbols we set the fix_line field, which will cause BFD
3662 to do the right thing. */
3664 sym
= symbol_make (name
);
3665 /* obj-coff.c currently only handles line numbers correctly in the
3667 S_SET_SEGMENT (sym
, text_section
);
3668 S_SET_VALUE (sym
, coff_n_line_nos
);
3669 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3671 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3672 symbol_get_tc (sym
)->output
= 1;
3680 for (look
= last_biei
? last_biei
: symbol_rootP
;
3681 (look
!= (symbolS
*) NULL
3682 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3683 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3684 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3685 look
= symbol_next (look
))
3687 if (look
!= (symbolS
*) NULL
)
3689 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3690 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3694 demand_empty_rest_of_line ();
3697 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3698 There is one argument, which is a csect symbol. The value of the
3699 .bs symbol is the index of this csect symbol. */
3702 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
3709 if (ppc_current_block
!= NULL
)
3710 as_bad (_("nested .bs blocks"));
3712 name
= input_line_pointer
;
3713 endc
= get_symbol_end ();
3715 csect
= symbol_find_or_make (name
);
3717 *input_line_pointer
= endc
;
3719 sym
= symbol_make (".bs");
3720 S_SET_SEGMENT (sym
, now_seg
);
3721 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3722 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3723 symbol_get_tc (sym
)->output
= 1;
3725 symbol_get_tc (sym
)->within
= csect
;
3727 ppc_frob_label (sym
);
3729 ppc_current_block
= sym
;
3731 demand_empty_rest_of_line ();
3734 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3737 ppc_es (int ignore ATTRIBUTE_UNUSED
)
3741 if (ppc_current_block
== NULL
)
3742 as_bad (_(".es without preceding .bs"));
3744 sym
= symbol_make (".es");
3745 S_SET_SEGMENT (sym
, now_seg
);
3746 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3747 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3748 symbol_get_tc (sym
)->output
= 1;
3750 ppc_frob_label (sym
);
3752 ppc_current_block
= NULL
;
3754 demand_empty_rest_of_line ();
3757 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3761 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
3765 sym
= symbol_make (".bb");
3766 S_SET_SEGMENT (sym
, text_section
);
3767 symbol_set_frag (sym
, frag_now
);
3768 S_SET_VALUE (sym
, frag_now_fix ());
3769 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3771 S_SET_NUMBER_AUXILIARY (sym
, 1);
3772 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3774 symbol_get_tc (sym
)->output
= 1;
3776 SF_SET_PROCESS (sym
);
3778 ppc_frob_label (sym
);
3780 demand_empty_rest_of_line ();
3783 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3787 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
3791 sym
= symbol_make (".eb");
3792 S_SET_SEGMENT (sym
, text_section
);
3793 symbol_set_frag (sym
, frag_now
);
3794 S_SET_VALUE (sym
, frag_now_fix ());
3795 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3796 S_SET_NUMBER_AUXILIARY (sym
, 1);
3797 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3798 symbol_get_tc (sym
)->output
= 1;
3800 SF_SET_PROCESS (sym
);
3802 ppc_frob_label (sym
);
3804 demand_empty_rest_of_line ();
3807 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3811 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
3817 name
= demand_copy_C_string (&len
);
3818 sym
= symbol_make (name
);
3819 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3820 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3821 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3822 S_SET_VALUE (sym
, 0);
3823 symbol_get_tc (sym
)->output
= 1;
3825 ppc_frob_label (sym
);
3827 demand_empty_rest_of_line ();
3830 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3833 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
3837 sym
= symbol_make (".ec");
3838 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3839 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3840 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3841 S_SET_VALUE (sym
, 0);
3842 symbol_get_tc (sym
)->output
= 1;
3844 ppc_frob_label (sym
);
3846 demand_empty_rest_of_line ();
3849 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3852 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
3854 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3855 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3862 subseg
= ppc_data_subsegment
;
3863 ++ppc_data_subsegment
;
3865 subseg_new (segment_name (data_section
), subseg
);
3866 ppc_toc_frag
= frag_now
;
3868 sym
= symbol_find_or_make ("TOC[TC0]");
3869 symbol_set_frag (sym
, frag_now
);
3870 S_SET_SEGMENT (sym
, data_section
);
3871 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3872 symbol_get_tc (sym
)->subseg
= subseg
;
3873 symbol_get_tc (sym
)->output
= 1;
3874 symbol_get_tc (sym
)->within
= sym
;
3876 ppc_toc_csect
= sym
;
3878 for (list
= ppc_data_csects
;
3879 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3880 list
= symbol_get_tc (list
)->next
)
3882 symbol_get_tc (list
)->next
= sym
;
3884 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3885 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3889 ppc_current_csect
= ppc_toc_csect
;
3891 demand_empty_rest_of_line ();
3894 /* The AIX assembler automatically aligns the operands of a .long or
3895 .short pseudo-op, and we want to be compatible. */
3898 ppc_xcoff_cons (int log_size
)
3900 frag_align (log_size
, 0, 0);
3901 record_alignment (now_seg
, log_size
);
3902 cons (1 << log_size
);
3906 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
3911 (void) expression (&exp
);
3913 if (exp
.X_op
!= O_constant
)
3915 as_bad (_("non-constant byte count"));
3919 byte_count
= exp
.X_add_number
;
3921 if (*input_line_pointer
!= ',')
3923 as_bad (_("missing value"));
3927 ++input_line_pointer
;
3931 #endif /* OBJ_XCOFF */
3932 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3934 /* The .tc pseudo-op. This is used when generating either XCOFF or
3935 ELF. This takes two or more arguments.
3937 When generating XCOFF output, the first argument is the name to
3938 give to this location in the toc; this will be a symbol with class
3939 TC. The rest of the arguments are N-byte values to actually put at
3940 this location in the TOC; often there is just one more argument, a
3941 relocatable symbol reference. The size of the value to store
3942 depends on target word size. A 32-bit target uses 4-byte values, a
3943 64-bit target uses 8-byte values.
3945 When not generating XCOFF output, the arguments are the same, but
3946 the first argument is simply ignored. */
3949 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
3953 /* Define the TOC symbol name. */
3959 if (ppc_toc_csect
== (symbolS
*) NULL
3960 || ppc_toc_csect
!= ppc_current_csect
)
3962 as_bad (_(".tc not in .toc section"));
3963 ignore_rest_of_line ();
3967 name
= input_line_pointer
;
3968 endc
= get_symbol_end ();
3970 sym
= symbol_find_or_make (name
);
3972 *input_line_pointer
= endc
;
3974 if (S_IS_DEFINED (sym
))
3978 label
= symbol_get_tc (ppc_current_csect
)->within
;
3979 if (symbol_get_tc (label
)->class != XMC_TC0
)
3981 as_bad (_(".tc with no label"));
3982 ignore_rest_of_line ();
3986 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
3987 symbol_set_frag (label
, symbol_get_frag (sym
));
3988 S_SET_VALUE (label
, S_GET_VALUE (sym
));
3990 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
3991 ++input_line_pointer
;
3996 S_SET_SEGMENT (sym
, now_seg
);
3997 symbol_set_frag (sym
, frag_now
);
3998 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3999 symbol_get_tc (sym
)->class = XMC_TC
;
4000 symbol_get_tc (sym
)->output
= 1;
4002 ppc_frob_label (sym
);
4005 #endif /* OBJ_XCOFF */
4009 /* Skip the TOC symbol name. */
4010 while (is_part_of_name (*input_line_pointer
)
4011 || *input_line_pointer
== '['
4012 || *input_line_pointer
== ']'
4013 || *input_line_pointer
== '{'
4014 || *input_line_pointer
== '}')
4015 ++input_line_pointer
;
4017 /* Align to a four/eight byte boundary. */
4018 align
= ppc_obj64
? 3 : 2;
4019 frag_align (align
, 0, 0);
4020 record_alignment (now_seg
, align
);
4021 #endif /* OBJ_ELF */
4023 if (*input_line_pointer
!= ',')
4024 demand_empty_rest_of_line ();
4027 ++input_line_pointer
;
4028 cons (ppc_obj64
? 8 : 4);
4032 /* Pseudo-op .machine. */
4035 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4038 #define MAX_HISTORY 100
4039 static unsigned long *cpu_history
;
4040 static int curr_hist
;
4044 if (*input_line_pointer
== '"')
4047 cpu_string
= demand_copy_C_string (&len
);
4052 cpu_string
= input_line_pointer
;
4053 c
= get_symbol_end ();
4054 cpu_string
= xstrdup (cpu_string
);
4055 *input_line_pointer
= c
;
4058 if (cpu_string
!= NULL
)
4060 unsigned long old_cpu
= ppc_cpu
;
4063 for (p
= cpu_string
; *p
!= 0; p
++)
4066 if (strcmp (cpu_string
, "push") == 0)
4068 if (cpu_history
== NULL
)
4069 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4071 if (curr_hist
>= MAX_HISTORY
)
4072 as_bad (_(".machine stack overflow"));
4074 cpu_history
[curr_hist
++] = ppc_cpu
;
4076 else if (strcmp (cpu_string
, "pop") == 0)
4079 as_bad (_(".machine stack underflow"));
4081 ppc_cpu
= cpu_history
[--curr_hist
];
4083 else if (parse_cpu (cpu_string
))
4086 as_bad (_("invalid machine `%s'"), cpu_string
);
4088 if (ppc_cpu
!= old_cpu
)
4089 ppc_setup_opcodes ();
4092 demand_empty_rest_of_line ();
4095 /* See whether a symbol is in the TOC section. */
4098 ppc_is_toc_sym (symbolS
*sym
)
4101 return symbol_get_tc (sym
)->class == XMC_TC
;
4104 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4106 return strcmp (sname
, ".toc") == 0;
4108 return strcmp (sname
, ".got") == 0;
4111 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4115 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4117 /* Set the current section. */
4119 ppc_set_current_section (segT
new)
4121 ppc_previous_section
= ppc_current_section
;
4122 ppc_current_section
= new;
4125 /* pseudo-op: .previous
4126 behaviour: toggles the current section with the previous section.
4128 warnings: "No previous section" */
4131 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4135 if (ppc_previous_section
== NULL
)
4137 as_warn (_("No previous section to return to. Directive ignored."));
4141 subseg_set (ppc_previous_section
, 0);
4143 ppc_set_current_section (ppc_previous_section
);
4146 /* pseudo-op: .pdata
4147 behaviour: predefined read only data section
4151 initial: .section .pdata "adr3"
4152 a - don't know -- maybe a misprint
4153 d - initialized data
4155 3 - double word aligned (that would be 4 byte boundary)
4158 Tag index tables (also known as the function table) for exception
4159 handling, debugging, etc. */
4162 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4164 if (pdata_section
== 0)
4166 pdata_section
= subseg_new (".pdata", 0);
4168 bfd_set_section_flags (stdoutput
, pdata_section
,
4169 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4170 | SEC_READONLY
| SEC_DATA
));
4172 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4176 pdata_section
= subseg_new (".pdata", 0);
4178 ppc_set_current_section (pdata_section
);
4181 /* pseudo-op: .ydata
4182 behaviour: predefined read only data section
4186 initial: .section .ydata "drw3"
4187 a - don't know -- maybe a misprint
4188 d - initialized data
4190 3 - double word aligned (that would be 4 byte boundary)
4192 Tag tables (also known as the scope table) for exception handling,
4196 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4198 if (ydata_section
== 0)
4200 ydata_section
= subseg_new (".ydata", 0);
4201 bfd_set_section_flags (stdoutput
, ydata_section
,
4202 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4203 | SEC_READONLY
| SEC_DATA
));
4205 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4209 ydata_section
= subseg_new (".ydata", 0);
4211 ppc_set_current_section (ydata_section
);
4214 /* pseudo-op: .reldata
4215 behaviour: predefined read write data section
4216 double word aligned (4-byte)
4217 FIXME: relocation is applied to it
4218 FIXME: what's the difference between this and .data?
4221 initial: .section .reldata "drw3"
4222 d - initialized data
4225 3 - double word aligned (that would be 8 byte boundary)
4228 Like .data, but intended to hold data subject to relocation, such as
4229 function descriptors, etc. */
4232 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4234 if (reldata_section
== 0)
4236 reldata_section
= subseg_new (".reldata", 0);
4238 bfd_set_section_flags (stdoutput
, reldata_section
,
4239 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4242 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4246 reldata_section
= subseg_new (".reldata", 0);
4248 ppc_set_current_section (reldata_section
);
4251 /* pseudo-op: .rdata
4252 behaviour: predefined read only data section
4256 initial: .section .rdata "dr3"
4257 d - initialized data
4259 3 - double word aligned (that would be 4 byte boundary) */
4262 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
4264 if (rdata_section
== 0)
4266 rdata_section
= subseg_new (".rdata", 0);
4267 bfd_set_section_flags (stdoutput
, rdata_section
,
4268 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4269 | SEC_READONLY
| SEC_DATA
));
4271 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4275 rdata_section
= subseg_new (".rdata", 0);
4277 ppc_set_current_section (rdata_section
);
4280 /* pseudo-op: .ualong
4281 behaviour: much like .int, with the exception that no alignment is
4283 FIXME: test the alignment statement
4288 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
4294 /* pseudo-op: .znop <symbol name>
4295 behaviour: Issue a nop instruction
4296 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4297 the supplied symbol name.
4299 warnings: Missing symbol name */
4302 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
4305 const struct powerpc_opcode
*opcode
;
4316 /* Strip out the symbol name. */
4317 symbol_name
= input_line_pointer
;
4318 c
= get_symbol_end ();
4320 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4321 strcpy (name
, symbol_name
);
4323 sym
= symbol_find_or_make (name
);
4325 *input_line_pointer
= c
;
4329 /* Look up the opcode in the hash table. */
4330 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4332 /* Stick in the nop. */
4333 insn
= opcode
->opcode
;
4335 /* Write out the instruction. */
4337 md_number_to_chars (f
, insn
, 4);
4339 f
- frag_now
->fr_literal
,
4344 BFD_RELOC_16_GOT_PCREL
);
4354 ppc_pe_comm (int lcomm
)
4363 name
= input_line_pointer
;
4364 c
= get_symbol_end ();
4366 /* just after name is now '\0'. */
4367 p
= input_line_pointer
;
4370 if (*input_line_pointer
!= ',')
4372 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4373 ignore_rest_of_line ();
4377 input_line_pointer
++; /* skip ',' */
4378 if ((temp
= get_absolute_expression ()) < 0)
4380 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4381 ignore_rest_of_line ();
4387 /* The third argument to .comm is the alignment. */
4388 if (*input_line_pointer
!= ',')
4392 ++input_line_pointer
;
4393 align
= get_absolute_expression ();
4396 as_warn (_("ignoring bad alignment"));
4403 symbolP
= symbol_find_or_make (name
);
4406 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4408 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4409 S_GET_NAME (symbolP
));
4410 ignore_rest_of_line ();
4414 if (S_GET_VALUE (symbolP
))
4416 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4417 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4418 S_GET_NAME (symbolP
),
4419 (long) S_GET_VALUE (symbolP
),
4424 S_SET_VALUE (symbolP
, (valueT
) temp
);
4425 S_SET_EXTERNAL (symbolP
);
4426 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
4429 demand_empty_rest_of_line ();
4433 * implement the .section pseudo op:
4434 * .section name {, "flags"}
4436 * | +--- optional flags: 'b' for bss
4438 * +-- section name 'l' for lib
4442 * 'd' (apparently m88k for data)
4444 * But if the argument is not a quoted string, treat it as a
4445 * subsegment number.
4447 * FIXME: this is a copy of the section processing from obj-coff.c, with
4448 * additions/changes for the moto-pas assembler support. There are three
4451 * FIXME: I just noticed this. This doesn't work at all really. It it
4452 * setting bits that bfd probably neither understands or uses. The
4453 * correct approach (?) will have to incorporate extra fields attached
4454 * to the section to hold the system specific stuff. (krk)
4457 * 'a' - unknown - referred to in documentation, but no definition supplied
4458 * 'c' - section has code
4459 * 'd' - section has initialized data
4460 * 'u' - section has uninitialized data
4461 * 'i' - section contains directives (info)
4462 * 'n' - section can be discarded
4463 * 'R' - remove section at link time
4465 * Section Protection:
4466 * 'r' - section is readable
4467 * 'w' - section is writeable
4468 * 'x' - section is executable
4469 * 's' - section is sharable
4471 * Section Alignment:
4472 * '0' - align to byte boundary
4473 * '1' - align to halfword undary
4474 * '2' - align to word boundary
4475 * '3' - align to doubleword boundary
4476 * '4' - align to quadword boundary
4477 * '5' - align to 32 byte boundary
4478 * '6' - align to 64 byte boundary
4483 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
4485 /* Strip out the section name. */
4494 section_name
= input_line_pointer
;
4495 c
= get_symbol_end ();
4497 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4498 strcpy (name
, section_name
);
4500 *input_line_pointer
= c
;
4505 flags
= SEC_NO_FLAGS
;
4507 if (strcmp (name
, ".idata$2") == 0)
4511 else if (strcmp (name
, ".idata$3") == 0)
4515 else if (strcmp (name
, ".idata$4") == 0)
4519 else if (strcmp (name
, ".idata$5") == 0)
4523 else if (strcmp (name
, ".idata$6") == 0)
4528 /* Default alignment to 16 byte boundary. */
4531 if (*input_line_pointer
== ',')
4533 ++input_line_pointer
;
4535 if (*input_line_pointer
!= '"')
4536 exp
= get_absolute_expression ();
4539 ++input_line_pointer
;
4540 while (*input_line_pointer
!= '"'
4541 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4543 switch (*input_line_pointer
)
4545 /* Section Contents */
4546 case 'a': /* unknown */
4547 as_bad (_("Unsupported section attribute -- 'a'"));
4549 case 'c': /* code section */
4552 case 'd': /* section has initialized data */
4555 case 'u': /* section has uninitialized data */
4556 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4560 case 'i': /* section contains directives (info) */
4561 /* FIXME: This is IMAGE_SCN_LNK_INFO
4563 flags
|= SEC_HAS_CONTENTS
;
4565 case 'n': /* section can be discarded */
4568 case 'R': /* Remove section at link time */
4569 flags
|= SEC_NEVER_LOAD
;
4572 /* Section Protection */
4573 case 'r': /* section is readable */
4574 flags
|= IMAGE_SCN_MEM_READ
;
4576 case 'w': /* section is writeable */
4577 flags
|= IMAGE_SCN_MEM_WRITE
;
4579 case 'x': /* section is executable */
4580 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4582 case 's': /* section is sharable */
4583 flags
|= IMAGE_SCN_MEM_SHARED
;
4586 /* Section Alignment */
4587 case '0': /* align to byte boundary */
4588 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4591 case '1': /* align to halfword boundary */
4592 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4595 case '2': /* align to word boundary */
4596 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4599 case '3': /* align to doubleword boundary */
4600 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4603 case '4': /* align to quadword boundary */
4604 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4607 case '5': /* align to 32 byte boundary */
4608 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4611 case '6': /* align to 64 byte boundary */
4612 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4617 as_bad (_("unknown section attribute '%c'"),
4618 *input_line_pointer
);
4621 ++input_line_pointer
;
4623 if (*input_line_pointer
== '"')
4624 ++input_line_pointer
;
4628 sec
= subseg_new (name
, (subsegT
) exp
);
4630 ppc_set_current_section (sec
);
4632 if (flags
!= SEC_NO_FLAGS
)
4634 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4635 as_bad (_("error setting flags for \"%s\": %s"),
4636 bfd_section_name (stdoutput
, sec
),
4637 bfd_errmsg (bfd_get_error ()));
4640 bfd_set_section_alignment (stdoutput
, sec
, align
);
4645 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
4651 name
= input_line_pointer
;
4652 endc
= get_symbol_end ();
4654 ext_sym
= symbol_find_or_make (name
);
4656 *input_line_pointer
= endc
;
4658 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4659 SF_SET_FUNCTION (ext_sym
);
4660 SF_SET_PROCESS (ext_sym
);
4661 coff_add_linesym (ext_sym
);
4663 demand_empty_rest_of_line ();
4667 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
4669 if (tocdata_section
== 0)
4671 tocdata_section
= subseg_new (".tocd", 0);
4672 /* FIXME: section flags won't work. */
4673 bfd_set_section_flags (stdoutput
, tocdata_section
,
4674 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4675 | SEC_READONLY
| SEC_DATA
));
4677 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4681 rdata_section
= subseg_new (".tocd", 0);
4684 ppc_set_current_section (tocdata_section
);
4686 demand_empty_rest_of_line ();
4689 /* Don't adjust TOC relocs to use the section symbol. */
4692 ppc_pe_fix_adjustable (fixS
*fix
)
4694 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4701 /* XCOFF specific symbol and file handling. */
4703 /* Canonicalize the symbol name. We use the to force the suffix, if
4704 any, to use square brackets, and to be in upper case. */
4707 ppc_canonicalize_symbol_name (char *name
)
4711 if (ppc_stab_symbol
)
4714 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4728 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4731 if (*s
== '\0' || s
[1] != '\0')
4732 as_bad (_("bad symbol suffix"));
4740 /* Set the class of a symbol based on the suffix, if any. This is
4741 called whenever a new symbol is created. */
4744 ppc_symbol_new_hook (symbolS
*sym
)
4746 struct ppc_tc_sy
*tc
;
4749 tc
= symbol_get_tc (sym
);
4753 tc
->real_name
= NULL
;
4759 if (ppc_stab_symbol
)
4762 s
= strchr (S_GET_NAME (sym
), '[');
4763 if (s
== (const char *) NULL
)
4765 /* There is no suffix. */
4774 if (strcmp (s
, "BS]") == 0)
4778 if (strcmp (s
, "DB]") == 0)
4780 else if (strcmp (s
, "DS]") == 0)
4784 if (strcmp (s
, "GL]") == 0)
4788 if (strcmp (s
, "PR]") == 0)
4792 if (strcmp (s
, "RO]") == 0)
4794 else if (strcmp (s
, "RW]") == 0)
4798 if (strcmp (s
, "SV]") == 0)
4802 if (strcmp (s
, "TC]") == 0)
4804 else if (strcmp (s
, "TI]") == 0)
4806 else if (strcmp (s
, "TB]") == 0)
4808 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4809 tc
->class = XMC_TC0
;
4812 if (strcmp (s
, "UA]") == 0)
4814 else if (strcmp (s
, "UC]") == 0)
4818 if (strcmp (s
, "XO]") == 0)
4823 if (tc
->class == -1)
4824 as_bad (_("Unrecognized symbol suffix"));
4827 /* Set the class of a label based on where it is defined. This
4828 handles symbols without suffixes. Also, move the symbol so that it
4829 follows the csect symbol. */
4832 ppc_frob_label (symbolS
*sym
)
4834 if (ppc_current_csect
!= (symbolS
*) NULL
)
4836 if (symbol_get_tc (sym
)->class == -1)
4837 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4839 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4840 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4841 &symbol_rootP
, &symbol_lastP
);
4842 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4846 dwarf2_emit_label (sym
);
4850 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4851 seen. It tells ppc_adjust_symtab whether it needs to look through
4854 static bfd_boolean ppc_saw_abs
;
4856 /* Change the name of a symbol just before writing it out. Set the
4857 real name if the .rename pseudo-op was used. Otherwise, remove any
4858 class suffix. Return 1 if the symbol should not be included in the
4862 ppc_frob_symbol (symbolS
*sym
)
4864 static symbolS
*ppc_last_function
;
4865 static symbolS
*set_end
;
4867 /* Discard symbols that should not be included in the output symbol
4869 if (! symbol_used_in_reloc_p (sym
)
4870 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4871 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4872 && ! symbol_get_tc (sym
)->output
4873 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4876 /* This one will disappear anyway. Don't make a csect sym for it. */
4877 if (sym
== abs_section_sym
)
4880 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4881 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4887 name
= S_GET_NAME (sym
);
4888 s
= strchr (name
, '[');
4889 if (s
!= (char *) NULL
)
4895 snew
= xmalloc (len
+ 1);
4896 memcpy (snew
, name
, len
);
4899 S_SET_NAME (sym
, snew
);
4903 if (set_end
!= (symbolS
*) NULL
)
4905 SA_SET_SYM_ENDNDX (set_end
, sym
);
4909 if (SF_GET_FUNCTION (sym
))
4911 if (ppc_last_function
!= (symbolS
*) NULL
)
4912 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4913 ppc_last_function
= sym
;
4914 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4916 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4917 SA_SET_SYM_FSIZE (sym
,
4918 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4921 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4922 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4924 if (ppc_last_function
== (symbolS
*) NULL
)
4925 as_bad (_(".ef with no preceding .function"));
4928 set_end
= ppc_last_function
;
4929 ppc_last_function
= NULL
;
4931 /* We don't have a C_EFCN symbol, but we need to force the
4932 COFF backend to believe that it has seen one. */
4933 coff_last_function
= NULL
;
4937 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4938 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4939 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4940 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4941 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4942 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4943 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4944 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4945 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4946 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4947 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4949 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4950 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4953 union internal_auxent
*a
;
4955 /* Create a csect aux. */
4956 i
= S_GET_NUMBER_AUXILIARY (sym
);
4957 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4958 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4959 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4961 /* This is the TOC table. */
4962 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4963 a
->x_csect
.x_scnlen
.l
= 0;
4964 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4966 else if (symbol_get_tc (sym
)->subseg
!= 0)
4968 /* This is a csect symbol. x_scnlen is the size of the
4970 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
4971 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
4972 S_GET_SEGMENT (sym
))
4973 - S_GET_VALUE (sym
));
4976 resolve_symbol_value (symbol_get_tc (sym
)->next
);
4977 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
4978 - S_GET_VALUE (sym
));
4980 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
4982 else if (S_GET_SEGMENT (sym
) == bss_section
)
4984 /* This is a common symbol. */
4985 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
4986 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
4987 if (S_IS_EXTERNAL (sym
))
4988 symbol_get_tc (sym
)->class = XMC_RW
;
4990 symbol_get_tc (sym
)->class = XMC_BS
;
4992 else if (S_GET_SEGMENT (sym
) == absolute_section
)
4994 /* This is an absolute symbol. The csect will be created by
4995 ppc_adjust_symtab. */
4997 a
->x_csect
.x_smtyp
= XTY_LD
;
4998 if (symbol_get_tc (sym
)->class == -1)
4999 symbol_get_tc (sym
)->class = XMC_XO
;
5001 else if (! S_IS_DEFINED (sym
))
5003 /* This is an external symbol. */
5004 a
->x_csect
.x_scnlen
.l
= 0;
5005 a
->x_csect
.x_smtyp
= XTY_ER
;
5007 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5011 /* This is a TOC definition. x_scnlen is the size of the
5013 next
= symbol_next (sym
);
5014 while (symbol_get_tc (next
)->class == XMC_TC0
)
5015 next
= symbol_next (next
);
5016 if (next
== (symbolS
*) NULL
5017 || symbol_get_tc (next
)->class != XMC_TC
)
5019 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5020 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5022 - S_GET_VALUE (sym
));
5024 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5025 - S_GET_VALUE (sym
));
5029 resolve_symbol_value (next
);
5030 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5031 - S_GET_VALUE (sym
));
5033 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5039 /* This is a normal symbol definition. x_scnlen is the
5040 symbol index of the containing csect. */
5041 if (S_GET_SEGMENT (sym
) == text_section
)
5042 csect
= ppc_text_csects
;
5043 else if (S_GET_SEGMENT (sym
) == data_section
)
5044 csect
= ppc_data_csects
;
5048 /* Skip the initial dummy symbol. */
5049 csect
= symbol_get_tc (csect
)->next
;
5051 if (csect
== (symbolS
*) NULL
)
5053 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5054 a
->x_csect
.x_scnlen
.l
= 0;
5058 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5060 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5061 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5062 > S_GET_VALUE (sym
))
5064 csect
= symbol_get_tc (csect
)->next
;
5067 a
->x_csect
.x_scnlen
.p
=
5068 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5069 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5072 a
->x_csect
.x_smtyp
= XTY_LD
;
5075 a
->x_csect
.x_parmhash
= 0;
5076 a
->x_csect
.x_snhash
= 0;
5077 if (symbol_get_tc (sym
)->class == -1)
5078 a
->x_csect
.x_smclas
= XMC_PR
;
5080 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5081 a
->x_csect
.x_stab
= 0;
5082 a
->x_csect
.x_snstab
= 0;
5084 /* Don't let the COFF backend resort these symbols. */
5085 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5087 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5089 /* We want the value to be the symbol index of the referenced
5090 csect symbol. BFD will do that for us if we set the right
5092 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5093 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5095 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5096 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5098 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5103 /* The value is the offset from the enclosing csect. */
5104 block
= symbol_get_tc (sym
)->within
;
5105 csect
= symbol_get_tc (block
)->within
;
5106 resolve_symbol_value (csect
);
5107 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5109 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5110 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5112 /* We want the value to be a file offset into the line numbers.
5113 BFD will do that for us if we set the right flags. We have
5114 already set the value correctly. */
5115 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5121 /* Adjust the symbol table. This creates csect symbols for all
5122 absolute symbols. */
5125 ppc_adjust_symtab (void)
5132 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5136 union internal_auxent
*a
;
5138 if (S_GET_SEGMENT (sym
) != absolute_section
)
5141 csect
= symbol_create (".abs[XO]", absolute_section
,
5142 S_GET_VALUE (sym
), &zero_address_frag
);
5143 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5144 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5145 i
= S_GET_NUMBER_AUXILIARY (csect
);
5146 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5147 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5148 a
->x_csect
.x_scnlen
.l
= 0;
5149 a
->x_csect
.x_smtyp
= XTY_SD
;
5150 a
->x_csect
.x_parmhash
= 0;
5151 a
->x_csect
.x_snhash
= 0;
5152 a
->x_csect
.x_smclas
= XMC_XO
;
5153 a
->x_csect
.x_stab
= 0;
5154 a
->x_csect
.x_snstab
= 0;
5156 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5158 i
= S_GET_NUMBER_AUXILIARY (sym
);
5159 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5160 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5161 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5164 ppc_saw_abs
= FALSE
;
5167 /* Set the VMA for a section. This is called on all the sections in
5171 ppc_frob_section (asection
*sec
)
5173 static bfd_vma vma
= 0;
5175 vma
= md_section_align (sec
, vma
);
5176 bfd_set_section_vma (stdoutput
, sec
, vma
);
5177 vma
+= bfd_section_size (stdoutput
, sec
);
5180 #endif /* OBJ_XCOFF */
5182 /* Turn a string in input_line_pointer into a floating point constant
5183 of type TYPE, and store the appropriate bytes in *LITP. The number
5184 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5185 returned, or NULL on OK. */
5188 md_atof (int type
, char *litp
, int *sizep
)
5191 LITTLENUM_TYPE words
[4];
5207 return _("bad call to md_atof");
5210 t
= atof_ieee (input_line_pointer
, type
, words
);
5212 input_line_pointer
= t
;
5216 if (target_big_endian
)
5218 for (i
= 0; i
< prec
; i
++)
5220 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5226 for (i
= prec
- 1; i
>= 0; i
--)
5228 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5236 /* Write a value out to the object file, using the appropriate
5240 md_number_to_chars (char *buf
, valueT val
, int n
)
5242 if (target_big_endian
)
5243 number_to_chars_bigendian (buf
, val
, n
);
5245 number_to_chars_littleendian (buf
, val
, n
);
5248 /* Align a section (I don't know why this is machine dependent). */
5251 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5256 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5258 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5262 /* We don't have any form of relaxing. */
5265 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5266 asection
*seg ATTRIBUTE_UNUSED
)
5272 /* Convert a machine dependent frag. We never generate these. */
5275 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5276 asection
*sec ATTRIBUTE_UNUSED
,
5277 fragS
*fragp ATTRIBUTE_UNUSED
)
5282 /* We have no need to default values of symbols. */
5285 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
5290 /* Functions concerning relocs. */
5292 /* The location from which a PC relative jump should be calculated,
5293 given a PC relative reloc. */
5296 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
5298 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5303 /* This is called to see whether a fixup should be adjusted to use a
5304 section symbol. We take the opportunity to change a fixup against
5305 a symbol in the TOC subsegment into a reloc against the
5306 corresponding .tc symbol. */
5309 ppc_fix_adjustable (fixS
*fix
)
5311 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5312 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5313 TC_SYMFIELD_TYPE
*tc
;
5315 if (symseg
== absolute_section
)
5318 if (ppc_toc_csect
!= (symbolS
*) NULL
5319 && fix
->fx_addsy
!= ppc_toc_csect
5320 && symseg
== data_section
5321 && val
>= ppc_toc_frag
->fr_address
5322 && (ppc_after_toc_frag
== (fragS
*) NULL
5323 || val
< ppc_after_toc_frag
->fr_address
))
5327 for (sy
= symbol_next (ppc_toc_csect
);
5328 sy
!= (symbolS
*) NULL
;
5329 sy
= symbol_next (sy
))
5331 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5333 if (sy_tc
->class == XMC_TC0
)
5335 if (sy_tc
->class != XMC_TC
)
5337 if (val
== resolve_symbol_value (sy
))
5340 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5345 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5346 _("symbol in .toc does not match any .tc"));
5349 /* Possibly adjust the reloc to be against the csect. */
5350 tc
= symbol_get_tc (fix
->fx_addsy
);
5352 && tc
->class != XMC_TC0
5353 && tc
->class != XMC_TC
5354 && symseg
!= bss_section
5355 /* Don't adjust if this is a reloc in the toc section. */
5356 && (symseg
!= data_section
5357 || ppc_toc_csect
== NULL
5358 || val
< ppc_toc_frag
->fr_address
5359 || (ppc_after_toc_frag
!= NULL
5360 && val
>= ppc_after_toc_frag
->fr_address
)))
5363 symbolS
*next_csect
;
5365 if (symseg
== text_section
)
5366 csect
= ppc_text_csects
;
5367 else if (symseg
== data_section
)
5368 csect
= ppc_data_csects
;
5372 /* Skip the initial dummy symbol. */
5373 csect
= symbol_get_tc (csect
)->next
;
5375 if (csect
!= (symbolS
*) NULL
)
5377 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5378 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5380 /* If the csect address equals the symbol value, then we
5381 have to look through the full symbol table to see
5382 whether this is the csect we want. Note that we will
5383 only get here if the csect has zero length. */
5384 if (symbol_get_frag (csect
)->fr_address
== val
5385 && S_GET_VALUE (csect
) == val
)
5389 for (scan
= symbol_next (csect
);
5391 scan
= symbol_next (scan
))
5393 if (symbol_get_tc (scan
)->subseg
!= 0)
5395 if (scan
== fix
->fx_addsy
)
5399 /* If we found the symbol before the next csect
5400 symbol, then this is the csect we want. */
5401 if (scan
== fix
->fx_addsy
)
5408 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5409 fix
->fx_addsy
= csect
;
5414 /* Adjust a reloc against a .lcomm symbol to be against the base
5416 if (symseg
== bss_section
5417 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5419 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5421 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5428 /* A reloc from one csect to another must be kept. The assembler
5429 will, of course, keep relocs between sections, and it will keep
5430 absolute relocs, but we need to force it to keep PC relative relocs
5431 between two csects in the same section. */
5434 ppc_force_relocation (fixS
*fix
)
5436 /* At this point fix->fx_addsy should already have been converted to
5437 a csect symbol. If the csect does not include the fragment, then
5438 we need to force the relocation. */
5440 && fix
->fx_addsy
!= NULL
5441 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5442 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5443 > fix
->fx_frag
->fr_address
)
5444 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5445 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5446 <= fix
->fx_frag
->fr_address
))))
5449 return generic_force_reloc (fix
);
5452 #endif /* OBJ_XCOFF */
5455 /* If this function returns non-zero, it guarantees that a relocation
5456 will be emitted for a fixup. */
5459 ppc_force_relocation (fixS
*fix
)
5461 /* Branch prediction relocations must force a relocation, as must
5462 the vtable description relocs. */
5463 switch (fix
->fx_r_type
)
5465 case BFD_RELOC_PPC_B16_BRTAKEN
:
5466 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5467 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5468 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5469 case BFD_RELOC_24_PLT_PCREL
:
5470 case BFD_RELOC_PPC64_TOC
:
5476 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5477 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5480 return generic_force_reloc (fix
);
5484 ppc_fix_adjustable (fixS
*fix
)
5486 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5487 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5488 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5489 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5490 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5491 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5492 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5493 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5494 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5498 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5499 rs_align_code frag. */
5502 ppc_handle_align (struct frag
*fragP
)
5504 valueT count
= (fragP
->fr_next
->fr_address
5505 - (fragP
->fr_address
+ fragP
->fr_fix
));
5507 if (count
!= 0 && (count
& 3) == 0)
5509 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
5512 md_number_to_chars (dest
, 0x60000000, 4);
5514 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0)
5516 /* For power6, we want the last nop to be a group terminating
5517 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5518 immediately after this one, with its address set to the last
5519 nop location. This will automatically reduce the number of
5520 nops in the current frag by one. */
5523 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
5525 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
5526 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
5527 group_nop
->fr_fix
= 0;
5528 group_nop
->fr_offset
= 1;
5529 group_nop
->fr_type
= rs_fill
;
5530 fragP
->fr_next
= group_nop
;
5531 dest
= group_nop
->fr_literal
;
5534 md_number_to_chars (dest
, 0x60210000, 4);
5539 /* Apply a fixup to the object code. This is called for all the
5540 fixups we generated by the call to fix_new_exp, above. In the call
5541 above we used a reloc code which was the largest legal reloc code
5542 plus the operand index. Here we undo that to recover the operand
5543 index. At this point all symbol values should be fully resolved,
5544 and we attempt to completely resolve the reloc. If we can not do
5545 that, we determine the correct reloc code and put it back in the
5549 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5551 valueT value
= * valP
;
5554 if (fixP
->fx_addsy
!= NULL
)
5556 /* Hack around bfd_install_relocation brain damage. */
5558 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5563 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5564 the symbol values. If we are doing this relocation the code in
5565 write.c is going to call bfd_install_relocation, which is also
5566 going to use the symbol value. That means that if the reloc is
5567 fully resolved we want to use *valP since bfd_install_relocation is
5569 However, if the reloc is not fully resolved we do not want to use
5570 *valP, and must use fx_offset instead. However, if the reloc
5571 is PC relative, we do want to use *valP since it includes the
5572 result of md_pcrel_from. This is confusing. */
5573 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5576 else if (fixP
->fx_pcrel
)
5580 value
= fixP
->fx_offset
;
5583 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5585 /* We can't actually support subtracting a symbol. */
5586 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5589 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5592 const struct powerpc_operand
*operand
;
5596 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5598 operand
= &powerpc_operands
[opindex
];
5601 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5602 does not generate a reloc. It uses the offset of `sym' within its
5603 csect. Other usages, such as `.long sym', generate relocs. This
5604 is the documented behaviour of non-TOC symbols. */
5605 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5606 && (operand
->bitm
& 0xfff0) == 0xfff0
5607 && operand
->shift
== 0
5608 && (operand
->insert
== NULL
|| ppc_obj64
)
5609 && fixP
->fx_addsy
!= NULL
5610 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5611 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5612 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5613 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5615 value
= fixP
->fx_offset
;
5620 /* Fetch the instruction, insert the fully resolved operand
5621 value, and stuff the instruction back again. */
5622 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5623 if (target_big_endian
)
5624 insn
= bfd_getb32 ((unsigned char *) where
);
5626 insn
= bfd_getl32 ((unsigned char *) where
);
5627 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5628 fixP
->fx_file
, fixP
->fx_line
);
5629 if (target_big_endian
)
5630 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5632 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5635 /* Nothing else to do here. */
5638 assert (fixP
->fx_addsy
!= NULL
);
5640 /* Determine a BFD reloc value based on the operand information.
5641 We are only prepared to turn a few of the operands into
5643 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5644 && operand
->bitm
== 0x3fffffc
5645 && operand
->shift
== 0)
5646 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5647 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5648 && operand
->bitm
== 0xfffc
5649 && operand
->shift
== 0)
5651 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5654 if (target_big_endian
)
5655 fixP
->fx_where
+= 2;
5658 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5659 && operand
->bitm
== 0x3fffffc
5660 && operand
->shift
== 0)
5661 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5662 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5663 && operand
->bitm
== 0xfffc
5664 && operand
->shift
== 0)
5666 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5669 if (target_big_endian
)
5670 fixP
->fx_where
+= 2;
5673 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5674 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5675 && (operand
->bitm
& 0xfff0) == 0xfff0
5676 && operand
->shift
== 0)
5678 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5680 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5683 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5684 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5689 fixP
->fx_r_type
= BFD_RELOC_16
;
5692 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5693 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5697 if (target_big_endian
)
5698 fixP
->fx_where
+= 2;
5700 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5706 /* Use expr_symbol_where to see if this is an expression
5708 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5709 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5710 _("unresolved expression that must be resolved"));
5712 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5713 _("unsupported relocation against %s"),
5714 S_GET_NAME (fixP
->fx_addsy
));
5722 ppc_elf_validate_fix (fixP
, seg
);
5724 switch (fixP
->fx_r_type
)
5726 case BFD_RELOC_CTOR
:
5733 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5737 case BFD_RELOC_32_PCREL
:
5738 case BFD_RELOC_PPC_EMB_NADDR32
:
5739 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5746 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5749 case BFD_RELOC_64_PCREL
:
5750 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5754 case BFD_RELOC_GPREL16
:
5755 case BFD_RELOC_16_GOT_PCREL
:
5756 case BFD_RELOC_16_GOTOFF
:
5757 case BFD_RELOC_LO16_GOTOFF
:
5758 case BFD_RELOC_HI16_GOTOFF
:
5759 case BFD_RELOC_HI16_S_GOTOFF
:
5760 case BFD_RELOC_16_BASEREL
:
5761 case BFD_RELOC_LO16_BASEREL
:
5762 case BFD_RELOC_HI16_BASEREL
:
5763 case BFD_RELOC_HI16_S_BASEREL
:
5764 case BFD_RELOC_PPC_EMB_NADDR16
:
5765 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5766 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5767 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5768 case BFD_RELOC_PPC_EMB_SDAI16
:
5769 case BFD_RELOC_PPC_EMB_SDA2REL
:
5770 case BFD_RELOC_PPC_EMB_SDA2I16
:
5771 case BFD_RELOC_PPC_EMB_RELSEC16
:
5772 case BFD_RELOC_PPC_EMB_RELST_LO
:
5773 case BFD_RELOC_PPC_EMB_RELST_HI
:
5774 case BFD_RELOC_PPC_EMB_RELST_HA
:
5775 case BFD_RELOC_PPC_EMB_RELSDA
:
5776 case BFD_RELOC_PPC_TOC16
:
5778 case BFD_RELOC_PPC64_TOC16_LO
:
5779 case BFD_RELOC_PPC64_TOC16_HI
:
5780 case BFD_RELOC_PPC64_TOC16_HA
:
5784 if (fixP
->fx_addsy
!= NULL
)
5785 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5786 _("cannot emit PC relative %s relocation against %s"),
5787 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5788 S_GET_NAME (fixP
->fx_addsy
));
5790 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5791 _("cannot emit PC relative %s relocation"),
5792 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5795 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5801 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5804 case BFD_RELOC_16_PCREL
:
5805 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5809 case BFD_RELOC_LO16
:
5811 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5814 case BFD_RELOC_LO16_PCREL
:
5815 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5819 /* This case happens when you write, for example,
5821 where L1 and L2 are defined later. */
5822 case BFD_RELOC_HI16
:
5824 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5827 case BFD_RELOC_HI16_PCREL
:
5828 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5832 case BFD_RELOC_HI16_S
:
5834 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5837 case BFD_RELOC_HI16_S_PCREL
:
5838 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5843 case BFD_RELOC_PPC64_HIGHER
:
5846 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5847 PPC_HIGHER (value
), 2);
5850 case BFD_RELOC_PPC64_HIGHER_S
:
5853 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5854 PPC_HIGHERA (value
), 2);
5857 case BFD_RELOC_PPC64_HIGHEST
:
5860 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5861 PPC_HIGHEST (value
), 2);
5864 case BFD_RELOC_PPC64_HIGHEST_S
:
5867 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5868 PPC_HIGHESTA (value
), 2);
5871 case BFD_RELOC_PPC64_ADDR16_DS
:
5872 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5873 case BFD_RELOC_PPC64_GOT16_DS
:
5874 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5875 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5876 case BFD_RELOC_PPC64_SECTOFF_DS
:
5877 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5878 case BFD_RELOC_PPC64_TOC16_DS
:
5879 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5880 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5881 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5885 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5886 unsigned long val
, mask
;
5888 if (target_big_endian
)
5889 val
= bfd_getb32 (where
- 2);
5891 val
= bfd_getl32 (where
);
5893 /* lq insns reserve the four lsbs. */
5894 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5895 && (val
& (0x3f << 26)) == (56u << 26))
5897 val
|= value
& mask
;
5898 if (target_big_endian
)
5899 bfd_putb16 ((bfd_vma
) val
, where
);
5901 bfd_putl16 ((bfd_vma
) val
, where
);
5905 case BFD_RELOC_PPC_B16_BRTAKEN
:
5906 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5907 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5908 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5911 case BFD_RELOC_PPC_TLS
:
5914 case BFD_RELOC_PPC_DTPMOD
:
5915 case BFD_RELOC_PPC_TPREL16
:
5916 case BFD_RELOC_PPC_TPREL16_LO
:
5917 case BFD_RELOC_PPC_TPREL16_HI
:
5918 case BFD_RELOC_PPC_TPREL16_HA
:
5919 case BFD_RELOC_PPC_TPREL
:
5920 case BFD_RELOC_PPC_DTPREL16
:
5921 case BFD_RELOC_PPC_DTPREL16_LO
:
5922 case BFD_RELOC_PPC_DTPREL16_HI
:
5923 case BFD_RELOC_PPC_DTPREL16_HA
:
5924 case BFD_RELOC_PPC_DTPREL
:
5925 case BFD_RELOC_PPC_GOT_TLSGD16
:
5926 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5927 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5928 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5929 case BFD_RELOC_PPC_GOT_TLSLD16
:
5930 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5931 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5932 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5933 case BFD_RELOC_PPC_GOT_TPREL16
:
5934 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5935 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5936 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5937 case BFD_RELOC_PPC_GOT_DTPREL16
:
5938 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5939 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5940 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5941 case BFD_RELOC_PPC64_TPREL16_DS
:
5942 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5943 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5944 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5945 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5946 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5947 case BFD_RELOC_PPC64_DTPREL16_DS
:
5948 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5949 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5950 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5951 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5952 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5953 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5956 /* Because SDA21 modifies the register field, the size is set to 4
5957 bytes, rather than 2, so offset it here appropriately. */
5958 case BFD_RELOC_PPC_EMB_SDA21
:
5962 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5963 + ((target_big_endian
) ? 2 : 0),
5970 /* This can occur if there is a bug in the input assembler, eg:
5971 ".byte <undefined_symbol> - ." */
5973 as_bad (_("Unable to handle reference to symbol %s"),
5974 S_GET_NAME (fixP
->fx_addsy
));
5976 as_bad (_("Unable to resolve expression"));
5980 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5984 case BFD_RELOC_24_PLT_PCREL
:
5985 case BFD_RELOC_PPC_LOCAL24PC
:
5986 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5994 /* Fetch the instruction, insert the fully resolved operand
5995 value, and stuff the instruction back again. */
5996 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5997 if (target_big_endian
)
5998 insn
= bfd_getb32 ((unsigned char *) where
);
6000 insn
= bfd_getl32 ((unsigned char *) where
);
6001 if ((value
& 3) != 0)
6002 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6003 _("must branch to an address a multiple of 4"));
6004 if ((offsetT
) value
< -0x40000000
6005 || (offsetT
) value
>= 0x40000000)
6006 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6007 _("@local or @plt branch destination is too far away, %ld bytes"),
6009 insn
= insn
| (value
& 0x03fffffc);
6010 if (target_big_endian
)
6011 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6013 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6017 case BFD_RELOC_VTABLE_INHERIT
:
6020 && !S_IS_DEFINED (fixP
->fx_addsy
)
6021 && !S_IS_WEAK (fixP
->fx_addsy
))
6022 S_SET_WEAK (fixP
->fx_addsy
);
6025 case BFD_RELOC_VTABLE_ENTRY
:
6030 /* Generated by reference to `sym@tocbase'. The sym is
6031 ignored by the linker. */
6032 case BFD_RELOC_PPC64_TOC
:
6038 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6045 fixP
->fx_addnumber
= value
;
6047 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6048 from the section contents. If we are going to be emitting a reloc
6049 then the section contents are immaterial, so don't warn if they
6050 happen to overflow. Leave such warnings to ld. */
6052 fixP
->fx_no_overflow
= 1;
6054 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6055 fixP
->fx_addnumber
= 0;
6059 fixP
->fx_addnumber
= 0;
6061 /* We want to use the offset within the data segment of the
6062 symbol, not the actual VMA of the symbol. */
6063 fixP
->fx_addnumber
=
6064 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
6070 /* Generate a reloc for a fixup. */
6073 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6077 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6079 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6080 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6081 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6082 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6083 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6085 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6086 _("reloc %d not supported by object file format"),
6087 (int) fixp
->fx_r_type
);
6090 reloc
->addend
= fixp
->fx_addnumber
;
6096 ppc_cfi_frame_initial_instructions (void)
6098 cfi_add_CFA_def_cfa (1, 0);
6102 tc_ppc_regname_to_dw2regnum (char *regname
)
6104 unsigned int regnum
= -1;
6108 static struct { char *name
; int dw2regnum
; } regnames
[] =
6110 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6111 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6112 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6113 { "spe_acc", 111 }, { "spefscr", 112 }
6116 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6117 if (strcmp (regnames
[i
].name
, regname
) == 0)
6118 return regnames
[i
].dw2regnum
;
6120 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6122 p
= regname
+ 1 + (regname
[1] == '.');
6123 regnum
= strtoul (p
, &q
, 10);
6124 if (p
== q
|| *q
|| regnum
>= 32)
6126 if (regname
[0] == 'f')
6128 else if (regname
[0] == 'v')
6131 else if (regname
[0] == 'c' && regname
[1] == 'r')
6133 p
= regname
+ 2 + (regname
[2] == '.');
6134 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6136 regnum
= p
[0] - '0' + 68;