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 3, 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 /* Quantization registers used with pair single instructions. */
417 { "lr", 8 }, /* Link Register */
421 { "r.0", 0 }, /* General Purpose Registers */
454 { "r.sp", 1 }, /* Stack Pointer */
456 { "r.toc", 2 }, /* Pointer to the table of contents */
458 { "r0", 0 }, /* More general purpose registers */
491 { "rtoc", 2 }, /* Table of contents */
493 { "sdr1", 25 }, /* Storage Description Register 1 */
497 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
498 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
500 { "v.0", 0 }, /* Vector registers */
570 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
572 /* Given NAME, find the register number associated with that name, return
573 the integer value associated with the given name or -1 on failure. */
576 reg_name_search (const struct pd_reg
*regs
, int regcount
, const char *name
)
578 int middle
, low
, high
;
586 middle
= (low
+ high
) / 2;
587 cmp
= strcasecmp (name
, regs
[middle
].name
);
593 return regs
[middle
].value
;
601 * Summary of register_name.
603 * in: Input_line_pointer points to 1st char of operand.
605 * out: A expressionS.
606 * The operand may have been a register: in this case, X_op == O_register,
607 * X_add_number is set to the register number, and truth is returned.
608 * Input_line_pointer->(next non-blank) char after operand, or is in its
613 register_name (expressionS
*expressionP
)
620 /* Find the spelling of the operand. */
621 start
= name
= input_line_pointer
;
622 if (name
[0] == '%' && ISALPHA (name
[1]))
623 name
= ++input_line_pointer
;
625 else if (!reg_names_p
|| !ISALPHA (name
[0]))
628 c
= get_symbol_end ();
629 reg_number
= reg_name_search (pre_defined_registers
, REG_NAME_CNT
, name
);
631 /* Put back the delimiting char. */
632 *input_line_pointer
= c
;
634 /* Look to see if it's in the register table. */
637 expressionP
->X_op
= O_register
;
638 expressionP
->X_add_number
= reg_number
;
640 /* Make the rest nice. */
641 expressionP
->X_add_symbol
= NULL
;
642 expressionP
->X_op_symbol
= NULL
;
646 /* Reset the line as if we had not done anything. */
647 input_line_pointer
= start
;
651 /* This function is called for each symbol seen in an expression. It
652 handles the special parsing which PowerPC assemblers are supposed
653 to use for condition codes. */
655 /* Whether to do the special parsing. */
656 static bfd_boolean cr_operand
;
658 /* Names to recognize in a condition code. This table is sorted. */
659 static const struct pd_reg cr_names
[] =
676 /* Parsing function. This returns non-zero if it recognized an
680 ppc_parse_name (const char *name
, expressionS
*expr
)
687 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
692 expr
->X_op
= O_constant
;
693 expr
->X_add_number
= val
;
698 /* Local variables. */
700 /* The type of processor we are assembling for. This is one or more
701 of the PPC_OPCODE flags defined in opcode/ppc.h. */
702 static unsigned long ppc_cpu
= 0;
704 /* Whether to target xcoff64/elf64. */
705 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
707 /* Opcode hash table. */
708 static struct hash_control
*ppc_hash
;
710 /* Macro hash table. */
711 static struct hash_control
*ppc_macro_hash
;
714 /* What type of shared library support to use. */
715 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
717 /* Flags to set in the elf header. */
718 static flagword ppc_flags
= 0;
720 /* Whether this is Solaris or not. */
721 #ifdef TARGET_SOLARIS_COMMENT
722 #define SOLARIS_P TRUE
724 #define SOLARIS_P FALSE
727 static bfd_boolean msolaris
= SOLARIS_P
;
732 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
733 using a bunch of different sections. These assembler sections,
734 however, are all encompassed within the .text or .data sections of
735 the final output file. We handle this by using different
736 subsegments within these main segments. */
738 /* Next subsegment to allocate within the .text segment. */
739 static subsegT ppc_text_subsegment
= 2;
741 /* Linked list of csects in the text section. */
742 static symbolS
*ppc_text_csects
;
744 /* Next subsegment to allocate within the .data segment. */
745 static subsegT ppc_data_subsegment
= 2;
747 /* Linked list of csects in the data section. */
748 static symbolS
*ppc_data_csects
;
750 /* The current csect. */
751 static symbolS
*ppc_current_csect
;
753 /* The RS/6000 assembler uses a TOC which holds addresses of functions
754 and variables. Symbols are put in the TOC with the .tc pseudo-op.
755 A special relocation is used when accessing TOC entries. We handle
756 the TOC as a subsegment within the .data segment. We set it up if
757 we see a .toc pseudo-op, and save the csect symbol here. */
758 static symbolS
*ppc_toc_csect
;
760 /* The first frag in the TOC subsegment. */
761 static fragS
*ppc_toc_frag
;
763 /* The first frag in the first subsegment after the TOC in the .data
764 segment. NULL if there are no subsegments after the TOC. */
765 static fragS
*ppc_after_toc_frag
;
767 /* The current static block. */
768 static symbolS
*ppc_current_block
;
770 /* The COFF debugging section; set by md_begin. This is not the
771 .debug section, but is instead the secret BFD section which will
772 cause BFD to set the section number of a symbol to N_DEBUG. */
773 static asection
*ppc_coff_debug_section
;
775 #endif /* OBJ_XCOFF */
779 /* Various sections that we need for PE coff support. */
780 static segT ydata_section
;
781 static segT pdata_section
;
782 static segT reldata_section
;
783 static segT rdata_section
;
784 static segT tocdata_section
;
786 /* The current section and the previous section. See ppc_previous. */
787 static segT ppc_previous_section
;
788 static segT ppc_current_section
;
793 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
794 #define PPC_APUINFO_ISEL 0x40
795 #define PPC_APUINFO_PMR 0x41
796 #define PPC_APUINFO_RFMCI 0x42
797 #define PPC_APUINFO_CACHELCK 0x43
798 #define PPC_APUINFO_SPE 0x100
799 #define PPC_APUINFO_EFS 0x101
800 #define PPC_APUINFO_BRLOCK 0x102
803 * We keep a list of APUinfo
805 unsigned long *ppc_apuinfo_list
;
806 unsigned int ppc_apuinfo_num
;
807 unsigned int ppc_apuinfo_num_alloc
;
811 const char *const md_shortopts
= "b:l:usm:K:VQ:";
813 const char *const md_shortopts
= "um:";
815 const struct option md_longopts
[] = {
816 {NULL
, no_argument
, NULL
, 0}
818 const size_t md_longopts_size
= sizeof (md_longopts
);
821 /* Handle -m options that set cpu type, and .machine arg. */
824 parse_cpu (const char *arg
)
826 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
828 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
829 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
830 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
831 else if (strcmp (arg
, "pwr") == 0)
832 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
833 /* -m601 means to assemble for the PowerPC 601, which includes
834 instructions that are holdovers from the Power. */
835 else if (strcmp (arg
, "601") == 0)
836 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
837 | PPC_OPCODE_601
| PPC_OPCODE_32
);
838 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
840 else if (strcmp (arg
, "ppc") == 0
841 || strcmp (arg
, "ppc32") == 0
842 || strcmp (arg
, "603") == 0
843 || strcmp (arg
, "604") == 0)
844 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
845 /* Do all PPC750s have paired single ops? */
846 else if (strcmp (arg
, "750cl") == 0)
847 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_PPCPS
;
848 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
849 else if (strcmp (arg
, "403") == 0
850 || strcmp (arg
, "405") == 0)
851 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
852 | PPC_OPCODE_403
| PPC_OPCODE_32
);
853 else if (strcmp (arg
, "440") == 0)
854 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
855 | PPC_OPCODE_440
| PPC_OPCODE_ISEL
| PPC_OPCODE_RFMCI
);
856 else if (strcmp (arg
, "7400") == 0
857 || strcmp (arg
, "7410") == 0
858 || strcmp (arg
, "7450") == 0
859 || strcmp (arg
, "7455") == 0)
860 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
861 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
);
862 else if (strcmp (arg
, "e300") == 0)
863 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
865 else if (strcmp (arg
, "altivec") == 0)
868 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_ALTIVEC
;
870 ppc_cpu
|= PPC_OPCODE_ALTIVEC
;
872 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
874 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
875 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
876 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
879 else if (strcmp (arg
, "spe") == 0)
882 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_SPE
| PPC_OPCODE_EFS
;
884 ppc_cpu
|= PPC_OPCODE_SPE
;
886 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
888 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
890 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
892 else if (strcmp (arg
, "ppc64bridge") == 0)
894 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
895 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
897 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
898 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
900 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
902 /* -mbooke64 means enable 64-bit BookE support. */
903 else if (strcmp (arg
, "booke64") == 0)
905 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
906 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
908 else if (strcmp (arg
, "power4") == 0)
910 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
911 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
913 else if (strcmp (arg
, "power5") == 0)
915 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
916 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
917 | PPC_OPCODE_POWER5
);
919 else if (strcmp (arg
, "power6") == 0)
921 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
922 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
923 | PPC_OPCODE_POWER5
| PPC_OPCODE_POWER6
);
925 else if (strcmp (arg
, "cell") == 0)
927 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
928 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
931 /* -mcom means assemble for the common intersection between Power
932 and PowerPC. At present, we just allow the union, rather
933 than the intersection. */
934 else if (strcmp (arg
, "com") == 0)
935 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
936 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
937 else if (strcmp (arg
, "any") == 0)
938 ppc_cpu
|= PPC_OPCODE_ANY
;
946 md_parse_option (int c
, char *arg
)
951 /* -u means that any undefined symbols should be treated as
952 external, which is the default for gas anyhow. */
957 /* Solaris as takes -le (presumably for little endian). For completeness
958 sake, recognize -be also. */
959 if (strcmp (arg
, "e") == 0)
961 target_big_endian
= 0;
962 set_target_endian
= 1;
970 if (strcmp (arg
, "e") == 0)
972 target_big_endian
= 1;
973 set_target_endian
= 1;
981 /* Recognize -K PIC. */
982 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
985 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
993 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
995 if (strcmp (arg
, "64") == 0)
1000 as_fatal (_("%s unsupported"), "-a64");
1003 else if (strcmp (arg
, "32") == 0)
1010 if (parse_cpu (arg
))
1013 else if (strcmp (arg
, "regnames") == 0)
1016 else if (strcmp (arg
, "no-regnames") == 0)
1017 reg_names_p
= FALSE
;
1020 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1021 that require relocation. */
1022 else if (strcmp (arg
, "relocatable") == 0)
1024 shlib
= SHLIB_MRELOCATABLE
;
1025 ppc_flags
|= EF_PPC_RELOCATABLE
;
1028 else if (strcmp (arg
, "relocatable-lib") == 0)
1030 shlib
= SHLIB_MRELOCATABLE
;
1031 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1034 /* -memb, set embedded bit. */
1035 else if (strcmp (arg
, "emb") == 0)
1036 ppc_flags
|= EF_PPC_EMB
;
1038 /* -mlittle/-mbig set the endianess. */
1039 else if (strcmp (arg
, "little") == 0
1040 || strcmp (arg
, "little-endian") == 0)
1042 target_big_endian
= 0;
1043 set_target_endian
= 1;
1046 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1048 target_big_endian
= 1;
1049 set_target_endian
= 1;
1052 else if (strcmp (arg
, "solaris") == 0)
1055 ppc_comment_chars
= ppc_solaris_comment_chars
;
1058 else if (strcmp (arg
, "no-solaris") == 0)
1061 ppc_comment_chars
= ppc_eabi_comment_chars
;
1066 as_bad (_("invalid switch -m%s"), arg
);
1072 /* -V: SVR4 argument to print version ID. */
1074 print_version_id ();
1077 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1078 should be emitted or not. FIXME: Not implemented. */
1082 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1083 rather than .stabs.excl, which is ignored by the linker.
1084 FIXME: Not implemented. */
1100 md_show_usage (FILE *stream
)
1102 fprintf (stream
, _("\
1104 -a32 generate ELF32/XCOFF32\n\
1105 -a64 generate ELF64/XCOFF64\n\
1107 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1108 -mpwr generate code for POWER (RIOS1)\n\
1109 -m601 generate code for PowerPC 601\n\
1110 -mppc, -mppc32, -m603, -m604\n\
1111 generate code for PowerPC 603/604\n\
1112 -m403, -m405 generate code for PowerPC 403/405\n\
1113 -m440 generate code for PowerPC 440\n\
1114 -m7400, -m7410, -m7450, -m7455\n\
1115 generate code for PowerPC 7400/7410/7450/7455\n\
1116 -m750cl generate code for PowerPC 750cl\n"));
1117 fprintf (stream
, _("\
1118 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1119 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1120 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1121 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1122 -mpower4 generate code for Power4 architecture\n\
1123 -mpower5 generate code for Power5 architecture\n\
1124 -mpower6 generate code for Power6 architecture\n\
1125 -mcell generate code for Cell Broadband Engine architecture\n\
1126 -mcom generate code Power/PowerPC common instructions\n\
1127 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1128 fprintf (stream
, _("\
1129 -maltivec generate code for AltiVec\n\
1130 -me300 generate code for PowerPC e300 family\n\
1131 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1132 -mspe generate code for Motorola SPE instructions\n\
1133 -mregnames Allow symbolic names for registers\n\
1134 -mno-regnames Do not allow symbolic names for registers\n"));
1136 fprintf (stream
, _("\
1137 -mrelocatable support for GCC's -mrelocatble option\n\
1138 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1139 -memb set PPC_EMB bit in ELF flags\n\
1140 -mlittle, -mlittle-endian, -l, -le\n\
1141 generate code for a little endian machine\n\
1142 -mbig, -mbig-endian, -b, -be\n\
1143 generate code for a big endian machine\n\
1144 -msolaris generate code for Solaris\n\
1145 -mno-solaris do not generate code for Solaris\n\
1146 -V print assembler version number\n\
1147 -Qy, -Qn ignored\n"));
1151 /* Set ppc_cpu if it is not already set. */
1156 const char *default_os
= TARGET_OS
;
1157 const char *default_cpu
= TARGET_CPU
;
1159 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1162 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1163 else if (strncmp (default_os
, "aix", 3) == 0
1164 && default_os
[3] >= '4' && default_os
[3] <= '9')
1165 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1166 else if (strncmp (default_os
, "aix3", 4) == 0)
1167 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1168 else if (strcmp (default_cpu
, "rs6000") == 0)
1169 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1170 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1171 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1173 as_fatal (_("Unknown default cpu = %s, os = %s"),
1174 default_cpu
, default_os
);
1178 /* Figure out the BFD architecture to use. This function and ppc_mach
1179 are called well before md_begin, when the output file is opened. */
1181 enum bfd_architecture
1184 const char *default_cpu
= TARGET_CPU
;
1187 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1188 return bfd_arch_powerpc
;
1189 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1190 return bfd_arch_rs6000
;
1191 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1193 if (strcmp (default_cpu
, "rs6000") == 0)
1194 return bfd_arch_rs6000
;
1195 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1196 return bfd_arch_powerpc
;
1199 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1200 return bfd_arch_unknown
;
1207 return bfd_mach_ppc64
;
1208 else if (ppc_arch () == bfd_arch_rs6000
)
1209 return bfd_mach_rs6k
;
1211 return bfd_mach_ppc
;
1215 ppc_target_format (void)
1219 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1221 return "xcoff-powermac";
1224 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1226 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1232 return "elf32-powerpc-vxworks";
1234 return (target_big_endian
1235 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1236 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1241 /* Insert opcodes and macros into hash tables. Called at startup and
1245 ppc_setup_opcodes (void)
1247 const struct powerpc_opcode
*op
;
1248 const struct powerpc_opcode
*op_end
;
1249 const struct powerpc_macro
*macro
;
1250 const struct powerpc_macro
*macro_end
;
1251 bfd_boolean bad_insn
= FALSE
;
1252 unsigned long prev_opcode
= 0;
1254 if (ppc_hash
!= NULL
)
1255 hash_die (ppc_hash
);
1256 if (ppc_macro_hash
!= NULL
)
1257 hash_die (ppc_macro_hash
);
1259 /* Insert the opcodes into a hash table. */
1260 ppc_hash
= hash_new ();
1262 if (ENABLE_CHECKING
)
1266 /* Check operand masks. Code here and in the disassembler assumes
1267 all the 1's in the mask are contiguous. */
1268 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1270 unsigned long mask
= powerpc_operands
[i
].bitm
;
1271 unsigned long right_bit
;
1274 right_bit
= mask
& -mask
;
1276 right_bit
= mask
& -mask
;
1277 if (mask
!= right_bit
)
1279 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1282 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1283 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1284 sizeof (powerpc_operands
[0])) == 0)
1286 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1293 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1294 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1296 if (ENABLE_CHECKING
)
1298 const unsigned char *o
;
1299 unsigned long omask
= op
->mask
;
1300 unsigned long major_opcode
= PPC_OP (op
->opcode
);
1302 /* The major opcodes had better be sorted. Code in the disassembler
1303 assumes the insns are sorted according to major opcode. */
1304 if (major_opcode
< prev_opcode
)
1306 as_bad (_("major opcode is not sorted for %s"),
1310 prev_opcode
= major_opcode
;
1312 /* The mask had better not trim off opcode bits. */
1313 if ((op
->opcode
& omask
) != op
->opcode
)
1315 as_bad (_("mask trims opcode bits for %s"),
1320 /* The operands must not overlap the opcode or each other. */
1321 for (o
= op
->operands
; *o
; ++o
)
1322 if (*o
>= num_powerpc_operands
)
1324 as_bad (_("operand index error for %s"),
1330 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1331 if (operand
->shift
>= 0)
1333 unsigned long mask
= operand
->bitm
<< operand
->shift
;
1336 as_bad (_("operand %d overlap in %s"),
1337 (int) (o
- op
->operands
), op
->name
);
1345 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1346 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1347 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1348 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1349 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1350 /* Certain instructions (eg: extsw) do not exist in the
1351 32-bit BookE instruction set, but they do exist in the
1352 64-bit BookE instruction set, and other PPC instruction
1353 sets. Check to see if the opcode has the BOOKE64 flag set.
1354 If it does make sure that the target CPU is not the BookE32. */
1355 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1356 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1357 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1358 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1359 || ((op
->flags
& PPC_OPCODE_POWER4
)
1360 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1361 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1362 || ((op
->flags
& PPC_OPCODE_POWER5
)
1363 == (ppc_cpu
& PPC_OPCODE_POWER5
)))
1364 && ((op
->flags
& PPC_OPCODE_POWER6
) == 0
1365 || ((op
->flags
& PPC_OPCODE_POWER6
)
1366 == (ppc_cpu
& PPC_OPCODE_POWER6
))))
1370 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1373 /* Ignore Power duplicates for -m601. */
1374 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1375 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1378 as_bad (_("duplicate instruction %s"),
1385 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1386 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1387 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1389 /* Insert the macros into a hash table. */
1390 ppc_macro_hash
= hash_new ();
1392 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1393 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1395 if ((macro
->flags
& ppc_cpu
) != 0)
1399 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1400 if (retval
!= (const char *) NULL
)
1402 as_bad (_("duplicate macro %s"), macro
->name
);
1412 /* This function is called when the assembler starts up. It is called
1413 after the options have been parsed and the output file has been
1421 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1424 /* Set the ELF flags if desired. */
1425 if (ppc_flags
&& !msolaris
)
1426 bfd_set_private_flags (stdoutput
, ppc_flags
);
1429 ppc_setup_opcodes ();
1431 /* Tell the main code what the endianness is if it is not overridden
1433 if (!set_target_endian
)
1435 set_target_endian
= 1;
1436 target_big_endian
= PPC_BIG_ENDIAN
;
1440 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1442 /* Create dummy symbols to serve as initial csects. This forces the
1443 text csects to precede the data csects. These symbols will not
1445 ppc_text_csects
= symbol_make ("dummy\001");
1446 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1447 ppc_data_csects
= symbol_make ("dummy\001");
1448 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1453 ppc_current_section
= text_section
;
1454 ppc_previous_section
= 0;
1463 if (ppc_apuinfo_list
== NULL
)
1466 /* Ok, so write the section info out. We have this layout:
1470 0 8 length of "APUinfo\0"
1471 4 (n*4) number of APU's (4 bytes each)
1474 20 APU#1 first APU's info
1475 24 APU#2 second APU's info
1480 asection
*seg
= now_seg
;
1481 subsegT subseg
= now_subseg
;
1482 asection
*apuinfo_secp
= (asection
*) NULL
;
1485 /* Create the .PPC.EMB.apuinfo section. */
1486 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1487 bfd_set_section_flags (stdoutput
,
1489 SEC_HAS_CONTENTS
| SEC_READONLY
);
1492 md_number_to_chars (p
, (valueT
) 8, 4);
1495 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1498 md_number_to_chars (p
, (valueT
) 2, 4);
1501 strcpy (p
, "APUinfo");
1503 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1506 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1509 frag_align (2, 0, 0);
1511 /* We probably can't restore the current segment, for there likely
1514 subseg_set (seg
, subseg
);
1519 /* Insert an operand value into an instruction. */
1521 static unsigned long
1522 ppc_insert_operand (unsigned long insn
,
1523 const struct powerpc_operand
*operand
,
1528 long min
, max
, right
;
1530 max
= operand
->bitm
;
1534 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1536 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1537 max
= (max
>> 1) & -right
;
1538 min
= ~max
& -right
;
1541 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1544 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1553 /* Some people write constants with the sign extension done by
1554 hand but only up to 32 bits. This shouldn't really be valid,
1555 but, to permit this code to assemble on a 64-bit host, we
1556 sign extend the 32-bit value to 64 bits if so doing makes the
1559 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1560 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1561 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1562 val
= val
- 0x80000000 - 0x80000000;
1564 /* Similarly, people write expressions like ~(1<<15), and expect
1565 this to be OK for a 32-bit unsigned value. */
1567 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1568 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1569 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1570 val
= val
+ 0x80000000 + 0x80000000;
1574 || (val
& (right
- 1)) != 0)
1575 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1578 if (operand
->insert
)
1583 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1584 if (errmsg
!= (const char *) NULL
)
1585 as_bad_where (file
, line
, errmsg
);
1588 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1595 /* Parse @got, etc. and return the desired relocation. */
1596 static bfd_reloc_code_real_type
1597 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1601 unsigned int length
: 8;
1602 unsigned int valid32
: 1;
1603 unsigned int valid64
: 1;
1612 const struct map_bfd
*ptr
;
1614 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1615 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1616 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1618 static const struct map_bfd mapping
[] = {
1619 MAP ("l", BFD_RELOC_LO16
),
1620 MAP ("h", BFD_RELOC_HI16
),
1621 MAP ("ha", BFD_RELOC_HI16_S
),
1622 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1623 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1624 MAP ("got", BFD_RELOC_16_GOTOFF
),
1625 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1626 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1627 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1628 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1629 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1630 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1631 MAP ("copy", BFD_RELOC_PPC_COPY
),
1632 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1633 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1634 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1635 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1636 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1637 MAP ("tls", BFD_RELOC_PPC_TLS
),
1638 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1639 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1640 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1641 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1642 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1643 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1644 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1645 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1646 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1647 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1648 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1649 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1650 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1651 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1652 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1653 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1654 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1655 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1656 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1657 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1658 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1659 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1660 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1661 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1662 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1663 MAP32 ("fixup", BFD_RELOC_CTOR
),
1664 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1665 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1666 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1667 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1668 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1669 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1670 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1671 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1672 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1673 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1674 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1675 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1676 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1677 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1678 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1679 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1680 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1681 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1682 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1683 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1684 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1685 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1686 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1687 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1688 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1689 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1690 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1691 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1692 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1693 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1694 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1695 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1696 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1697 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1698 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1699 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1700 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1701 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1702 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1703 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1704 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1708 return BFD_RELOC_UNUSED
;
1710 for (ch
= *str
, str2
= ident
;
1711 (str2
< ident
+ sizeof (ident
) - 1
1712 && (ISALNUM (ch
) || ch
== '@'));
1715 *str2
++ = TOLOWER (ch
);
1722 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1723 if (ch
== ptr
->string
[0]
1724 && len
== ptr
->length
1725 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1726 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1728 int reloc
= ptr
->reloc
;
1731 if (exp_p
->X_add_number
!= 0
1732 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1733 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1734 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1735 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1736 as_warn (_("identifier+constant@got means identifier@got+constant"));
1738 /* Now check for identifier@suffix+constant. */
1739 if (*str
== '-' || *str
== '+')
1741 char *orig_line
= input_line_pointer
;
1742 expressionS new_exp
;
1744 input_line_pointer
= str
;
1745 expression (&new_exp
);
1746 if (new_exp
.X_op
== O_constant
)
1748 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1749 str
= input_line_pointer
;
1752 if (&input_line_pointer
!= str_p
)
1753 input_line_pointer
= orig_line
;
1757 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1758 && exp_p
->X_op
== O_symbol
1759 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1761 /* Change the symbol so that the dummy .TOC. symbol can be
1762 omitted from the object file. */
1763 exp_p
->X_add_symbol
= &abs_symbol
;
1766 return (bfd_reloc_code_real_type
) reloc
;
1769 return BFD_RELOC_UNUSED
;
1772 /* Like normal .long/.short/.word, except support @got, etc.
1773 Clobbers input_line_pointer, checks end-of-line. */
1775 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1778 bfd_reloc_code_real_type reloc
;
1780 if (is_it_end_of_statement ())
1782 demand_empty_rest_of_line ();
1789 if (exp
.X_op
== O_symbol
1790 && *input_line_pointer
== '@'
1791 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1792 &exp
)) != BFD_RELOC_UNUSED
)
1794 reloc_howto_type
*reloc_howto
;
1797 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1798 size
= bfd_get_reloc_size (reloc_howto
);
1802 as_bad (_("%s relocations do not fit in %d bytes\n"),
1803 reloc_howto
->name
, nbytes
);
1810 p
= frag_more (nbytes
);
1812 if (target_big_endian
)
1813 offset
= nbytes
- size
;
1814 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1819 emit_expr (&exp
, (unsigned int) nbytes
);
1821 while (*input_line_pointer
++ == ',');
1823 /* Put terminator back into stream. */
1824 input_line_pointer
--;
1825 demand_empty_rest_of_line ();
1828 /* Solaris pseduo op to change to the .rodata section. */
1830 ppc_elf_rdata (int xxx
)
1832 char *save_line
= input_line_pointer
;
1833 static char section
[] = ".rodata\n";
1835 /* Just pretend this is .section .rodata */
1836 input_line_pointer
= section
;
1837 obj_elf_section (xxx
);
1839 input_line_pointer
= save_line
;
1842 /* Pseudo op to make file scope bss items. */
1844 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
1857 name
= input_line_pointer
;
1858 c
= get_symbol_end ();
1860 /* just after name is now '\0'. */
1861 p
= input_line_pointer
;
1864 if (*input_line_pointer
!= ',')
1866 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1867 ignore_rest_of_line ();
1871 input_line_pointer
++; /* skip ',' */
1872 if ((size
= get_absolute_expression ()) < 0)
1874 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1875 ignore_rest_of_line ();
1879 /* The third argument to .lcomm is the alignment. */
1880 if (*input_line_pointer
!= ',')
1884 ++input_line_pointer
;
1885 align
= get_absolute_expression ();
1888 as_warn (_("ignoring bad alignment"));
1894 symbolP
= symbol_find_or_make (name
);
1897 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1899 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1900 S_GET_NAME (symbolP
));
1901 ignore_rest_of_line ();
1905 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1907 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1908 S_GET_NAME (symbolP
),
1909 (long) S_GET_VALUE (symbolP
),
1912 ignore_rest_of_line ();
1918 old_subsec
= now_subseg
;
1921 /* Convert to a power of 2 alignment. */
1922 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1925 as_bad (_("Common alignment not a power of 2"));
1926 ignore_rest_of_line ();
1933 record_alignment (bss_section
, align2
);
1934 subseg_set (bss_section
, 0);
1936 frag_align (align2
, 0, 0);
1937 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1938 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1939 symbol_set_frag (symbolP
, frag_now
);
1940 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1943 S_SET_SIZE (symbolP
, size
);
1944 S_SET_SEGMENT (symbolP
, bss_section
);
1945 subseg_set (old_sec
, old_subsec
);
1946 demand_empty_rest_of_line ();
1949 /* Validate any relocations emitted for -mrelocatable, possibly adding
1950 fixups for word relocations in writable segments, so we can adjust
1953 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
1955 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1964 case SHLIB_MRELOCATABLE
:
1965 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1966 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1967 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1968 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1969 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1970 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1971 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1972 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1973 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1974 && (seg
->flags
& SEC_LOAD
) != 0
1975 && strcmp (segment_name (seg
), ".got2") != 0
1976 && strcmp (segment_name (seg
), ".dtors") != 0
1977 && strcmp (segment_name (seg
), ".ctors") != 0
1978 && strcmp (segment_name (seg
), ".fixup") != 0
1979 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1980 && strcmp (segment_name (seg
), ".eh_frame") != 0
1981 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1983 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1984 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1986 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1987 _("Relocation cannot be done when using -mrelocatable"));
1994 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1995 function descriptor sym if the corresponding code sym is used. */
1998 ppc_frob_file_before_adjust (void)
2006 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2013 name
= S_GET_NAME (symp
);
2017 if (! S_IS_WEAK (symp
)
2018 || S_IS_DEFINED (symp
))
2021 len
= strlen (name
) + 1;
2022 dotname
= xmalloc (len
+ 1);
2024 memcpy (dotname
+ 1, name
, len
);
2025 dotsym
= symbol_find_noref (dotname
, 1);
2027 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2028 || symbol_used_in_reloc_p (dotsym
)))
2029 symbol_mark_used (symp
);
2033 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2035 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2036 as_warn (_("TOC section size exceeds 64k"));
2038 /* Don't emit .TOC. symbol. */
2039 symp
= symbol_find (".TOC.");
2041 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2043 #endif /* OBJ_ELF */
2048 * Summary of parse_toc_entry.
2050 * in: Input_line_pointer points to the '[' in one of:
2052 * [toc] [tocv] [toc32] [toc64]
2054 * Anything else is an error of one kind or another.
2057 * return value: success or failure
2058 * toc_kind: kind of toc reference
2059 * input_line_pointer:
2060 * success: first char after the ']'
2061 * failure: unchanged
2065 * [toc] - rv == success, toc_kind = default_toc
2066 * [tocv] - rv == success, toc_kind = data_in_toc
2067 * [toc32] - rv == success, toc_kind = must_be_32
2068 * [toc64] - rv == success, toc_kind = must_be_64
2072 enum toc_size_qualifier
2074 default_toc
, /* The toc cell constructed should be the system default size */
2075 data_in_toc
, /* This is a direct reference to a toc cell */
2076 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2077 must_be_64
/* The toc cell constructed must be 64 bits wide */
2081 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2086 enum toc_size_qualifier t
;
2088 /* Save the input_line_pointer. */
2089 start
= input_line_pointer
;
2091 /* Skip over the '[' , and whitespace. */
2092 ++input_line_pointer
;
2095 /* Find the spelling of the operand. */
2096 toc_spec
= input_line_pointer
;
2097 c
= get_symbol_end ();
2099 if (strcmp (toc_spec
, "toc") == 0)
2103 else if (strcmp (toc_spec
, "tocv") == 0)
2107 else if (strcmp (toc_spec
, "toc32") == 0)
2111 else if (strcmp (toc_spec
, "toc64") == 0)
2117 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2118 *input_line_pointer
= c
;
2119 input_line_pointer
= start
;
2123 /* Now find the ']'. */
2124 *input_line_pointer
= c
;
2126 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2127 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2131 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2132 input_line_pointer
= start
;
2143 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2145 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2149 /* Check we don't already exist. */
2150 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2151 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2154 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2156 if (ppc_apuinfo_num_alloc
== 0)
2158 ppc_apuinfo_num_alloc
= 4;
2159 ppc_apuinfo_list
= (unsigned long *)
2160 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2164 ppc_apuinfo_num_alloc
+= 4;
2165 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2166 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2169 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2175 /* We need to keep a list of fixups. We can't simply generate them as
2176 we go, because that would require us to first create the frag, and
2177 that would screw up references to ``.''. */
2183 bfd_reloc_code_real_type reloc
;
2186 #define MAX_INSN_FIXUPS (5)
2188 /* This routine is called for each instruction to be assembled. */
2191 md_assemble (char *str
)
2194 const struct powerpc_opcode
*opcode
;
2196 const unsigned char *opindex_ptr
;
2200 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2206 bfd_reloc_code_real_type reloc
;
2209 /* Get the opcode. */
2210 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2215 /* Look up the opcode in the hash table. */
2216 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2217 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2219 const struct powerpc_macro
*macro
;
2221 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2222 if (macro
== (const struct powerpc_macro
*) NULL
)
2223 as_bad (_("Unrecognized opcode: `%s'"), str
);
2225 ppc_macro (s
, macro
);
2230 insn
= opcode
->opcode
;
2233 while (ISSPACE (*str
))
2236 /* PowerPC operands are just expressions. The only real issue is
2237 that a few operand types are optional. All cases which might use
2238 an optional operand separate the operands only with commas (in some
2239 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2240 have optional operands). Most instructions with optional operands
2241 have only one. Those that have more than one optional operand can
2242 take either all their operands or none. So, before we start seriously
2243 parsing the operands, we check to see if we have optional operands,
2244 and if we do, we count the number of commas to see which operands
2245 have been omitted. */
2247 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2249 const struct powerpc_operand
*operand
;
2251 operand
= &powerpc_operands
[*opindex_ptr
];
2252 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2254 unsigned int opcount
;
2255 unsigned int num_operands_expected
;
2258 /* There is an optional operand. Count the number of
2259 commas in the input line. */
2266 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2273 /* Compute the number of expected operands.
2274 Do not count fake operands. */
2275 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2276 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2277 ++ num_operands_expected
;
2279 /* If there are fewer operands in the line then are called
2280 for by the instruction, we want to skip the optional
2282 if (opcount
< num_operands_expected
)
2289 /* Gather the operands. */
2293 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2295 const struct powerpc_operand
*operand
;
2301 if (next_opindex
== 0)
2302 operand
= &powerpc_operands
[*opindex_ptr
];
2305 operand
= &powerpc_operands
[next_opindex
];
2310 /* If this is a fake operand, then we do not expect anything
2312 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2314 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2315 if (errmsg
!= (const char *) NULL
)
2320 /* If this is an optional operand, and we are skipping it, just
2322 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2325 if (operand
->insert
)
2327 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2328 if (errmsg
!= (const char *) NULL
)
2331 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2332 next_opindex
= *opindex_ptr
+ 1;
2336 /* Gather the operand. */
2337 hold
= input_line_pointer
;
2338 input_line_pointer
= str
;
2341 if (*input_line_pointer
== '[')
2343 /* We are expecting something like the second argument here:
2345 * lwz r4,[toc].GS.0.static_int(rtoc)
2346 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2347 * The argument following the `]' must be a symbol name, and the
2348 * register must be the toc register: 'rtoc' or '2'
2350 * The effect is to 0 as the displacement field
2351 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2352 * the appropriate variation) reloc against it based on the symbol.
2353 * The linker will build the toc, and insert the resolved toc offset.
2356 * o The size of the toc entry is currently assumed to be
2357 * 32 bits. This should not be assumed to be a hard coded
2359 * o In an effort to cope with a change from 32 to 64 bits,
2360 * there are also toc entries that are specified to be
2361 * either 32 or 64 bits:
2362 * lwz r4,[toc32].GS.0.static_int(rtoc)
2363 * lwz r4,[toc64].GS.0.static_int(rtoc)
2364 * These demand toc entries of the specified size, and the
2365 * instruction probably requires it.
2369 enum toc_size_qualifier toc_kind
;
2370 bfd_reloc_code_real_type toc_reloc
;
2372 /* Go parse off the [tocXX] part. */
2373 valid_toc
= parse_toc_entry (&toc_kind
);
2377 /* Note: message has already been issued.
2378 FIXME: what sort of recovery should we do?
2379 demand_rest_of_line (); return; ? */
2382 /* Now get the symbol following the ']'. */
2388 /* In this case, we may not have seen the symbol yet,
2389 since it is allowed to appear on a .extern or .globl
2390 or just be a label in the .data section. */
2391 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2394 /* 1. The symbol must be defined and either in the toc
2395 section, or a global.
2396 2. The reloc generated must have the TOCDEFN flag set
2397 in upper bit mess of the reloc type.
2398 FIXME: It's a little confusing what the tocv
2399 qualifier can be used for. At the very least, I've
2400 seen three uses, only one of which I'm sure I can
2402 if (ex
.X_op
== O_symbol
)
2404 assert (ex
.X_add_symbol
!= NULL
);
2405 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2408 as_bad (_("[tocv] symbol is not a toc symbol"));
2412 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2415 /* FIXME: these next two specifically specify 32/64 bit
2416 toc entries. We don't support them today. Is this
2417 the right way to say that? */
2418 toc_reloc
= BFD_RELOC_UNUSED
;
2419 as_bad (_("Unimplemented toc32 expression modifier"));
2422 /* FIXME: see above. */
2423 toc_reloc
= BFD_RELOC_UNUSED
;
2424 as_bad (_("Unimplemented toc64 expression modifier"));
2428 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2434 /* We need to generate a fixup for this expression. */
2435 if (fc
>= MAX_INSN_FIXUPS
)
2436 as_fatal (_("too many fixups"));
2438 fixups
[fc
].reloc
= toc_reloc
;
2439 fixups
[fc
].exp
= ex
;
2440 fixups
[fc
].opindex
= *opindex_ptr
;
2443 /* Ok. We've set up the fixup for the instruction. Now make it
2444 look like the constant 0 was found here. */
2446 ex
.X_op
= O_constant
;
2447 ex
.X_add_number
= 0;
2448 ex
.X_add_symbol
= NULL
;
2449 ex
.X_op_symbol
= NULL
;
2455 if (! register_name (&ex
))
2457 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2464 str
= input_line_pointer
;
2465 input_line_pointer
= hold
;
2467 if (ex
.X_op
== O_illegal
)
2468 as_bad (_("illegal operand"));
2469 else if (ex
.X_op
== O_absent
)
2470 as_bad (_("missing operand"));
2471 else if (ex
.X_op
== O_register
)
2473 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2476 else if (ex
.X_op
== O_constant
)
2479 /* Allow @HA, @L, @H on constants. */
2480 char *orig_str
= str
;
2482 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2489 case BFD_RELOC_LO16
:
2490 /* X_unsigned is the default, so if the user has done
2491 something which cleared it, we always produce a
2493 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2494 ex
.X_add_number
&= 0xffff;
2496 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2499 case BFD_RELOC_HI16
:
2500 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2501 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2503 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2506 case BFD_RELOC_HI16_S
:
2507 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2508 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2510 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2513 case BFD_RELOC_PPC64_HIGHER
:
2514 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2515 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2517 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2520 case BFD_RELOC_PPC64_HIGHER_S
:
2521 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2522 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2524 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2527 case BFD_RELOC_PPC64_HIGHEST
:
2528 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2529 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2531 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2534 case BFD_RELOC_PPC64_HIGHEST_S
:
2535 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2536 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2538 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2541 #endif /* OBJ_ELF */
2542 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2546 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2548 /* Some TLS tweaks. */
2553 case BFD_RELOC_PPC_TLS
:
2554 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2557 /* We'll only use the 32 (or 64) bit form of these relocations
2558 in constants. Instructions get the 16 bit form. */
2559 case BFD_RELOC_PPC_DTPREL
:
2560 reloc
= BFD_RELOC_PPC_DTPREL16
;
2562 case BFD_RELOC_PPC_TPREL
:
2563 reloc
= BFD_RELOC_PPC_TPREL16
;
2567 /* For the absolute forms of branches, convert the PC
2568 relative form back into the absolute. */
2569 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2573 case BFD_RELOC_PPC_B26
:
2574 reloc
= BFD_RELOC_PPC_BA26
;
2576 case BFD_RELOC_PPC_B16
:
2577 reloc
= BFD_RELOC_PPC_BA16
;
2579 case BFD_RELOC_PPC_B16_BRTAKEN
:
2580 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2582 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2583 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2591 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2596 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2598 case BFD_RELOC_LO16
:
2599 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2601 case BFD_RELOC_16_GOTOFF
:
2602 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2604 case BFD_RELOC_LO16_GOTOFF
:
2605 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2607 case BFD_RELOC_LO16_PLTOFF
:
2608 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2610 case BFD_RELOC_16_BASEREL
:
2611 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2613 case BFD_RELOC_LO16_BASEREL
:
2614 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2616 case BFD_RELOC_PPC_TOC16
:
2617 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2619 case BFD_RELOC_PPC64_TOC16_LO
:
2620 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2622 case BFD_RELOC_PPC64_PLTGOT16
:
2623 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2625 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2626 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2628 case BFD_RELOC_PPC_DTPREL16
:
2629 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2631 case BFD_RELOC_PPC_DTPREL16_LO
:
2632 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2634 case BFD_RELOC_PPC_TPREL16
:
2635 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2637 case BFD_RELOC_PPC_TPREL16_LO
:
2638 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2640 case BFD_RELOC_PPC_GOT_DTPREL16
:
2641 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2642 case BFD_RELOC_PPC_GOT_TPREL16
:
2643 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2646 as_bad (_("unsupported relocation for DS offset field"));
2651 /* We need to generate a fixup for this expression. */
2652 if (fc
>= MAX_INSN_FIXUPS
)
2653 as_fatal (_("too many fixups"));
2654 fixups
[fc
].exp
= ex
;
2655 fixups
[fc
].opindex
= 0;
2656 fixups
[fc
].reloc
= reloc
;
2659 #endif /* OBJ_ELF */
2663 /* We need to generate a fixup for this expression. */
2664 if (fc
>= MAX_INSN_FIXUPS
)
2665 as_fatal (_("too many fixups"));
2666 fixups
[fc
].exp
= ex
;
2667 fixups
[fc
].opindex
= *opindex_ptr
;
2668 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2676 /* If expecting more operands, then we want to see "),". */
2677 if (*str
== endc
&& opindex_ptr
[1] != 0)
2681 while (ISSPACE (*str
));
2685 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2693 /* The call to expression should have advanced str past any
2696 && (endc
!= ',' || *str
!= '\0'))
2698 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2706 while (ISSPACE (*str
))
2710 as_bad (_("junk at end of line: `%s'"), str
);
2713 /* Do we need/want a APUinfo section? */
2714 if (ppc_cpu
& (PPC_OPCODE_SPE
2715 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2716 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2717 | PPC_OPCODE_RFMCI
))
2719 /* These are all version "1". */
2720 if (opcode
->flags
& PPC_OPCODE_SPE
)
2721 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2722 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2723 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2724 if (opcode
->flags
& PPC_OPCODE_EFS
)
2725 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2726 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2727 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2728 if (opcode
->flags
& PPC_OPCODE_PMR
)
2729 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2730 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2731 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2732 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2733 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2737 /* Write out the instruction. */
2739 addr_mod
= frag_now_fix () & 3;
2740 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2741 as_bad (_("instruction address is not a multiple of 4"));
2742 frag_now
->insn_addr
= addr_mod
;
2743 frag_now
->has_code
= 1;
2744 md_number_to_chars (f
, insn
, 4);
2747 dwarf2_emit_insn (4);
2750 /* Create any fixups. At this point we do not use a
2751 bfd_reloc_code_real_type, but instead just use the
2752 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2753 handle fixups for any operand type, although that is admittedly
2754 not a very exciting feature. We pick a BFD reloc type in
2756 for (i
= 0; i
< fc
; i
++)
2758 const struct powerpc_operand
*operand
;
2760 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2761 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2763 reloc_howto_type
*reloc_howto
;
2768 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2772 size
= bfd_get_reloc_size (reloc_howto
);
2773 offset
= target_big_endian
? (4 - size
) : 0;
2775 if (size
< 1 || size
> 4)
2778 fixP
= fix_new_exp (frag_now
,
2779 f
- frag_now
->fr_literal
+ offset
,
2782 reloc_howto
->pc_relative
,
2785 /* Turn off complaints that the addend is too large for things like
2787 switch (fixups
[i
].reloc
)
2789 case BFD_RELOC_16_GOTOFF
:
2790 case BFD_RELOC_PPC_TOC16
:
2791 case BFD_RELOC_LO16
:
2792 case BFD_RELOC_HI16
:
2793 case BFD_RELOC_HI16_S
:
2795 case BFD_RELOC_PPC64_HIGHER
:
2796 case BFD_RELOC_PPC64_HIGHER_S
:
2797 case BFD_RELOC_PPC64_HIGHEST
:
2798 case BFD_RELOC_PPC64_HIGHEST_S
:
2800 fixP
->fx_no_overflow
= 1;
2807 fix_new_exp (frag_now
,
2808 f
- frag_now
->fr_literal
,
2811 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2812 ((bfd_reloc_code_real_type
)
2813 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2817 /* Handle a macro. Gather all the operands, transform them as
2818 described by the macro, and call md_assemble recursively. All the
2819 operands are separated by commas; we don't accept parentheses
2820 around operands here. */
2823 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
2834 /* Gather the users operands into the operands array. */
2839 if (count
>= sizeof operands
/ sizeof operands
[0])
2841 operands
[count
++] = s
;
2842 s
= strchr (s
, ',');
2843 if (s
== (char *) NULL
)
2848 if (count
!= macro
->operands
)
2850 as_bad (_("wrong number of operands"));
2854 /* Work out how large the string must be (the size is unbounded
2855 because it includes user input). */
2857 format
= macro
->format
;
2858 while (*format
!= '\0')
2867 arg
= strtol (format
+ 1, &send
, 10);
2868 know (send
!= format
&& arg
< count
);
2869 len
+= strlen (operands
[arg
]);
2874 /* Put the string together. */
2875 complete
= s
= (char *) alloca (len
+ 1);
2876 format
= macro
->format
;
2877 while (*format
!= '\0')
2883 arg
= strtol (format
+ 1, &send
, 10);
2884 strcpy (s
, operands
[arg
]);
2891 /* Assemble the constructed instruction. */
2892 md_assemble (complete
);
2896 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2899 ppc_section_letter (int letter
, char **ptr_msg
)
2904 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2909 ppc_section_word (char *str
, size_t len
)
2911 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2918 ppc_section_type (char *str
, size_t len
)
2920 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2927 ppc_section_flags (int flags
, int attr
, int type
)
2929 if (type
== SHT_ORDERED
)
2930 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2932 if (attr
& SHF_EXCLUDE
)
2933 flags
|= SEC_EXCLUDE
;
2937 #endif /* OBJ_ELF */
2940 /* Pseudo-op handling. */
2942 /* The .byte pseudo-op. This is similar to the normal .byte
2943 pseudo-op, but it can also take a single ASCII string. */
2946 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
2948 if (*input_line_pointer
!= '\"')
2954 /* Gather characters. A real double quote is doubled. Unusual
2955 characters are not permitted. */
2956 ++input_line_pointer
;
2961 c
= *input_line_pointer
++;
2965 if (*input_line_pointer
!= '\"')
2967 ++input_line_pointer
;
2970 FRAG_APPEND_1_CHAR (c
);
2973 demand_empty_rest_of_line ();
2978 /* XCOFF specific pseudo-op handling. */
2980 /* This is set if we are creating a .stabx symbol, since we don't want
2981 to handle symbol suffixes for such symbols. */
2982 static bfd_boolean ppc_stab_symbol
;
2984 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2985 symbols in the .bss segment as though they were local common
2986 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2987 aligns .comm and .lcomm to 4 bytes. */
2990 ppc_comm (int lcomm
)
2992 asection
*current_seg
= now_seg
;
2993 subsegT current_subseg
= now_subseg
;
2999 symbolS
*lcomm_sym
= NULL
;
3003 name
= input_line_pointer
;
3004 endc
= get_symbol_end ();
3005 end_name
= input_line_pointer
;
3008 if (*input_line_pointer
!= ',')
3010 as_bad (_("missing size"));
3011 ignore_rest_of_line ();
3014 ++input_line_pointer
;
3016 size
= get_absolute_expression ();
3019 as_bad (_("negative size"));
3020 ignore_rest_of_line ();
3026 /* The third argument to .comm is the alignment. */
3027 if (*input_line_pointer
!= ',')
3031 ++input_line_pointer
;
3032 align
= get_absolute_expression ();
3035 as_warn (_("ignoring bad alignment"));
3050 /* The third argument to .lcomm appears to be the real local
3051 common symbol to create. References to the symbol named in
3052 the first argument are turned into references to the third
3054 if (*input_line_pointer
!= ',')
3056 as_bad (_("missing real symbol name"));
3057 ignore_rest_of_line ();
3060 ++input_line_pointer
;
3062 lcomm_name
= input_line_pointer
;
3063 lcomm_endc
= get_symbol_end ();
3065 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3067 *input_line_pointer
= lcomm_endc
;
3071 sym
= symbol_find_or_make (name
);
3074 if (S_IS_DEFINED (sym
)
3075 || S_GET_VALUE (sym
) != 0)
3077 as_bad (_("attempt to redefine symbol"));
3078 ignore_rest_of_line ();
3082 record_alignment (bss_section
, align
);
3085 || ! S_IS_DEFINED (lcomm_sym
))
3094 S_SET_EXTERNAL (sym
);
3098 symbol_get_tc (lcomm_sym
)->output
= 1;
3099 def_sym
= lcomm_sym
;
3103 subseg_set (bss_section
, 1);
3104 frag_align (align
, 0, 0);
3106 symbol_set_frag (def_sym
, frag_now
);
3107 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3108 def_size
, (char *) NULL
);
3110 S_SET_SEGMENT (def_sym
, bss_section
);
3111 symbol_get_tc (def_sym
)->align
= align
;
3115 /* Align the size of lcomm_sym. */
3116 symbol_get_frag (lcomm_sym
)->fr_offset
=
3117 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3118 &~ ((1 << align
) - 1));
3119 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3120 symbol_get_tc (lcomm_sym
)->align
= align
;
3125 /* Make sym an offset from lcomm_sym. */
3126 S_SET_SEGMENT (sym
, bss_section
);
3127 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3128 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3129 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3132 subseg_set (current_seg
, current_subseg
);
3134 demand_empty_rest_of_line ();
3137 /* The .csect pseudo-op. This switches us into a different
3138 subsegment. The first argument is a symbol whose value is the
3139 start of the .csect. In COFF, csect symbols get special aux
3140 entries defined by the x_csect field of union internal_auxent. The
3141 optional second argument is the alignment (the default is 2). */
3144 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3151 name
= input_line_pointer
;
3152 endc
= get_symbol_end ();
3154 sym
= symbol_find_or_make (name
);
3156 *input_line_pointer
= endc
;
3158 if (S_GET_NAME (sym
)[0] == '\0')
3160 /* An unnamed csect is assumed to be [PR]. */
3161 symbol_get_tc (sym
)->class = XMC_PR
;
3165 if (*input_line_pointer
== ',')
3167 ++input_line_pointer
;
3168 align
= get_absolute_expression ();
3171 ppc_change_csect (sym
, align
);
3173 demand_empty_rest_of_line ();
3176 /* Change to a different csect. */
3179 ppc_change_csect (symbolS
*sym
, offsetT align
)
3181 if (S_IS_DEFINED (sym
))
3182 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3192 /* This is a new csect. We need to look at the symbol class to
3193 figure out whether it should go in the text section or the
3197 switch (symbol_get_tc (sym
)->class)
3207 S_SET_SEGMENT (sym
, text_section
);
3208 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3209 ++ppc_text_subsegment
;
3210 list_ptr
= &ppc_text_csects
;
3220 if (ppc_toc_csect
!= NULL
3221 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3222 == ppc_data_subsegment
))
3224 S_SET_SEGMENT (sym
, data_section
);
3225 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3226 ++ppc_data_subsegment
;
3227 list_ptr
= &ppc_data_csects
;
3233 /* We set the obstack chunk size to a small value before
3234 changing subsegments, so that we don't use a lot of memory
3235 space for what may be a small section. */
3236 hold_chunksize
= chunksize
;
3239 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3240 symbol_get_tc (sym
)->subseg
);
3242 chunksize
= hold_chunksize
;
3245 ppc_after_toc_frag
= frag_now
;
3247 record_alignment (sec
, align
);
3249 frag_align_code (align
, 0);
3251 frag_align (align
, 0, 0);
3253 symbol_set_frag (sym
, frag_now
);
3254 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3256 symbol_get_tc (sym
)->align
= align
;
3257 symbol_get_tc (sym
)->output
= 1;
3258 symbol_get_tc (sym
)->within
= sym
;
3260 for (list
= *list_ptr
;
3261 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3262 list
= symbol_get_tc (list
)->next
)
3264 symbol_get_tc (list
)->next
= sym
;
3266 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3267 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3271 ppc_current_csect
= sym
;
3274 /* This function handles the .text and .data pseudo-ops. These
3275 pseudo-ops aren't really used by XCOFF; we implement them for the
3276 convenience of people who aren't used to XCOFF. */
3279 ppc_section (int type
)
3286 else if (type
== 'd')
3291 sym
= symbol_find_or_make (name
);
3293 ppc_change_csect (sym
, 2);
3295 demand_empty_rest_of_line ();
3298 /* This function handles the .section pseudo-op. This is mostly to
3299 give an error, since XCOFF only supports .text, .data and .bss, but
3300 we do permit the user to name the text or data section. */
3303 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3306 const char *real_name
;
3310 user_name
= input_line_pointer
;
3311 c
= get_symbol_end ();
3313 if (strcmp (user_name
, ".text") == 0)
3314 real_name
= ".text[PR]";
3315 else if (strcmp (user_name
, ".data") == 0)
3316 real_name
= ".data[RW]";
3319 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3320 *input_line_pointer
= c
;
3321 ignore_rest_of_line ();
3325 *input_line_pointer
= c
;
3327 sym
= symbol_find_or_make (real_name
);
3329 ppc_change_csect (sym
, 2);
3331 demand_empty_rest_of_line ();
3334 /* The .extern pseudo-op. We create an undefined symbol. */
3337 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3342 name
= input_line_pointer
;
3343 endc
= get_symbol_end ();
3345 (void) symbol_find_or_make (name
);
3347 *input_line_pointer
= endc
;
3349 demand_empty_rest_of_line ();
3352 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3355 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3361 name
= input_line_pointer
;
3362 endc
= get_symbol_end ();
3364 sym
= symbol_find_or_make (name
);
3366 *input_line_pointer
= endc
;
3368 symbol_get_tc (sym
)->output
= 1;
3370 demand_empty_rest_of_line ();
3373 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3374 although I don't know why it bothers. */
3377 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
3384 name
= input_line_pointer
;
3385 endc
= get_symbol_end ();
3387 sym
= symbol_find_or_make (name
);
3389 *input_line_pointer
= endc
;
3391 if (*input_line_pointer
!= ',')
3393 as_bad (_("missing rename string"));
3394 ignore_rest_of_line ();
3397 ++input_line_pointer
;
3399 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3401 demand_empty_rest_of_line ();
3404 /* The .stabx pseudo-op. This is similar to a normal .stabs
3405 pseudo-op, but slightly different. A sample is
3406 .stabx "main:F-1",.main,142,0
3407 The first argument is the symbol name to create. The second is the
3408 value, and the third is the storage class. The fourth seems to be
3409 always zero, and I am assuming it is the type. */
3412 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
3419 name
= demand_copy_C_string (&len
);
3421 if (*input_line_pointer
!= ',')
3423 as_bad (_("missing value"));
3426 ++input_line_pointer
;
3428 ppc_stab_symbol
= TRUE
;
3429 sym
= symbol_make (name
);
3430 ppc_stab_symbol
= FALSE
;
3432 symbol_get_tc (sym
)->real_name
= name
;
3434 (void) expression (&exp
);
3441 as_bad (_("illegal .stabx expression; zero assumed"));
3442 exp
.X_add_number
= 0;
3445 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3446 symbol_set_frag (sym
, &zero_address_frag
);
3450 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3451 symbol_set_value_expression (sym
, &exp
);
3455 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3456 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3461 /* The value is some complex expression. This will probably
3462 fail at some later point, but this is probably the right
3463 thing to do here. */
3464 symbol_set_value_expression (sym
, &exp
);
3468 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3469 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3471 if (*input_line_pointer
!= ',')
3473 as_bad (_("missing class"));
3476 ++input_line_pointer
;
3478 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3480 if (*input_line_pointer
!= ',')
3482 as_bad (_("missing type"));
3485 ++input_line_pointer
;
3487 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3489 symbol_get_tc (sym
)->output
= 1;
3491 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3493 symbol_get_tc (sym
)->within
= ppc_current_block
;
3498 .stabx "z",arrays_,133,0
3501 .comm arrays_,13768,3
3503 resolve_symbol_value will copy the exp's "within" into sym's when the
3504 offset is 0. Since this seems to be corner case problem,
3505 only do the correction for storage class C_STSYM. A better solution
3506 would be to have the tc field updated in ppc_symbol_new_hook. */
3508 if (exp
.X_op
== O_symbol
)
3510 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3514 if (exp
.X_op
!= O_symbol
3515 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3516 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3517 ppc_frob_label (sym
);
3520 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3521 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3522 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3523 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3526 demand_empty_rest_of_line ();
3529 /* The .function pseudo-op. This takes several arguments. The first
3530 argument seems to be the external name of the symbol. The second
3531 argument seems to be the label for the start of the function. gcc
3532 uses the same name for both. I have no idea what the third and
3533 fourth arguments are meant to be. The optional fifth argument is
3534 an expression for the size of the function. In COFF this symbol
3535 gets an aux entry like that used for a csect. */
3538 ppc_function (int ignore ATTRIBUTE_UNUSED
)
3546 name
= input_line_pointer
;
3547 endc
= get_symbol_end ();
3549 /* Ignore any [PR] suffix. */
3550 name
= ppc_canonicalize_symbol_name (name
);
3551 s
= strchr (name
, '[');
3552 if (s
!= (char *) NULL
3553 && strcmp (s
+ 1, "PR]") == 0)
3556 ext_sym
= symbol_find_or_make (name
);
3558 *input_line_pointer
= endc
;
3560 if (*input_line_pointer
!= ',')
3562 as_bad (_("missing symbol name"));
3563 ignore_rest_of_line ();
3566 ++input_line_pointer
;
3568 name
= input_line_pointer
;
3569 endc
= get_symbol_end ();
3571 lab_sym
= symbol_find_or_make (name
);
3573 *input_line_pointer
= endc
;
3575 if (ext_sym
!= lab_sym
)
3579 exp
.X_op
= O_symbol
;
3580 exp
.X_add_symbol
= lab_sym
;
3581 exp
.X_op_symbol
= NULL
;
3582 exp
.X_add_number
= 0;
3584 symbol_set_value_expression (ext_sym
, &exp
);
3587 if (symbol_get_tc (ext_sym
)->class == -1)
3588 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3589 symbol_get_tc (ext_sym
)->output
= 1;
3591 if (*input_line_pointer
== ',')
3595 /* Ignore the third argument. */
3596 ++input_line_pointer
;
3597 expression (&ignore
);
3598 if (*input_line_pointer
== ',')
3600 /* Ignore the fourth argument. */
3601 ++input_line_pointer
;
3602 expression (&ignore
);
3603 if (*input_line_pointer
== ',')
3605 /* The fifth argument is the function size. */
3606 ++input_line_pointer
;
3607 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3610 &zero_address_frag
);
3611 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3616 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3617 SF_SET_FUNCTION (ext_sym
);
3618 SF_SET_PROCESS (ext_sym
);
3619 coff_add_linesym (ext_sym
);
3621 demand_empty_rest_of_line ();
3624 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3625 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3626 with the correct line number */
3628 static symbolS
*saved_bi_sym
= 0;
3631 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
3635 sym
= symbol_make (".bf");
3636 S_SET_SEGMENT (sym
, text_section
);
3637 symbol_set_frag (sym
, frag_now
);
3638 S_SET_VALUE (sym
, frag_now_fix ());
3639 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3641 coff_line_base
= get_absolute_expression ();
3643 S_SET_NUMBER_AUXILIARY (sym
, 1);
3644 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3646 /* Line number for bi. */
3649 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3654 symbol_get_tc (sym
)->output
= 1;
3656 ppc_frob_label (sym
);
3658 demand_empty_rest_of_line ();
3661 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3662 ".ef", except that the line number is absolute, not relative to the
3663 most recent ".bf" symbol. */
3666 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
3670 sym
= symbol_make (".ef");
3671 S_SET_SEGMENT (sym
, text_section
);
3672 symbol_set_frag (sym
, frag_now
);
3673 S_SET_VALUE (sym
, frag_now_fix ());
3674 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3675 S_SET_NUMBER_AUXILIARY (sym
, 1);
3676 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3677 symbol_get_tc (sym
)->output
= 1;
3679 ppc_frob_label (sym
);
3681 demand_empty_rest_of_line ();
3684 /* The .bi and .ei pseudo-ops. These take a string argument and
3685 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3686 the symbol list. The value of .bi will be know when the next .bf
3692 static symbolS
*last_biei
;
3699 name
= demand_copy_C_string (&len
);
3701 /* The value of these symbols is actually file offset. Here we set
3702 the value to the index into the line number entries. In
3703 ppc_frob_symbols we set the fix_line field, which will cause BFD
3704 to do the right thing. */
3706 sym
= symbol_make (name
);
3707 /* obj-coff.c currently only handles line numbers correctly in the
3709 S_SET_SEGMENT (sym
, text_section
);
3710 S_SET_VALUE (sym
, coff_n_line_nos
);
3711 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3713 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3714 symbol_get_tc (sym
)->output
= 1;
3722 for (look
= last_biei
? last_biei
: symbol_rootP
;
3723 (look
!= (symbolS
*) NULL
3724 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3725 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3726 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3727 look
= symbol_next (look
))
3729 if (look
!= (symbolS
*) NULL
)
3731 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3732 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3736 demand_empty_rest_of_line ();
3739 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3740 There is one argument, which is a csect symbol. The value of the
3741 .bs symbol is the index of this csect symbol. */
3744 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
3751 if (ppc_current_block
!= NULL
)
3752 as_bad (_("nested .bs blocks"));
3754 name
= input_line_pointer
;
3755 endc
= get_symbol_end ();
3757 csect
= symbol_find_or_make (name
);
3759 *input_line_pointer
= endc
;
3761 sym
= symbol_make (".bs");
3762 S_SET_SEGMENT (sym
, now_seg
);
3763 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3764 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3765 symbol_get_tc (sym
)->output
= 1;
3767 symbol_get_tc (sym
)->within
= csect
;
3769 ppc_frob_label (sym
);
3771 ppc_current_block
= sym
;
3773 demand_empty_rest_of_line ();
3776 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3779 ppc_es (int ignore ATTRIBUTE_UNUSED
)
3783 if (ppc_current_block
== NULL
)
3784 as_bad (_(".es without preceding .bs"));
3786 sym
= symbol_make (".es");
3787 S_SET_SEGMENT (sym
, now_seg
);
3788 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3789 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3790 symbol_get_tc (sym
)->output
= 1;
3792 ppc_frob_label (sym
);
3794 ppc_current_block
= NULL
;
3796 demand_empty_rest_of_line ();
3799 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3803 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
3807 sym
= symbol_make (".bb");
3808 S_SET_SEGMENT (sym
, text_section
);
3809 symbol_set_frag (sym
, frag_now
);
3810 S_SET_VALUE (sym
, frag_now_fix ());
3811 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3813 S_SET_NUMBER_AUXILIARY (sym
, 1);
3814 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3816 symbol_get_tc (sym
)->output
= 1;
3818 SF_SET_PROCESS (sym
);
3820 ppc_frob_label (sym
);
3822 demand_empty_rest_of_line ();
3825 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3829 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
3833 sym
= symbol_make (".eb");
3834 S_SET_SEGMENT (sym
, text_section
);
3835 symbol_set_frag (sym
, frag_now
);
3836 S_SET_VALUE (sym
, frag_now_fix ());
3837 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3838 S_SET_NUMBER_AUXILIARY (sym
, 1);
3839 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3840 symbol_get_tc (sym
)->output
= 1;
3842 SF_SET_PROCESS (sym
);
3844 ppc_frob_label (sym
);
3846 demand_empty_rest_of_line ();
3849 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3853 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
3859 name
= demand_copy_C_string (&len
);
3860 sym
= symbol_make (name
);
3861 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3862 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3863 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3864 S_SET_VALUE (sym
, 0);
3865 symbol_get_tc (sym
)->output
= 1;
3867 ppc_frob_label (sym
);
3869 demand_empty_rest_of_line ();
3872 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3875 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
3879 sym
= symbol_make (".ec");
3880 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3881 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3882 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3883 S_SET_VALUE (sym
, 0);
3884 symbol_get_tc (sym
)->output
= 1;
3886 ppc_frob_label (sym
);
3888 demand_empty_rest_of_line ();
3891 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3894 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
3896 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3897 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3904 subseg
= ppc_data_subsegment
;
3905 ++ppc_data_subsegment
;
3907 subseg_new (segment_name (data_section
), subseg
);
3908 ppc_toc_frag
= frag_now
;
3910 sym
= symbol_find_or_make ("TOC[TC0]");
3911 symbol_set_frag (sym
, frag_now
);
3912 S_SET_SEGMENT (sym
, data_section
);
3913 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3914 symbol_get_tc (sym
)->subseg
= subseg
;
3915 symbol_get_tc (sym
)->output
= 1;
3916 symbol_get_tc (sym
)->within
= sym
;
3918 ppc_toc_csect
= sym
;
3920 for (list
= ppc_data_csects
;
3921 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3922 list
= symbol_get_tc (list
)->next
)
3924 symbol_get_tc (list
)->next
= sym
;
3926 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3927 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3931 ppc_current_csect
= ppc_toc_csect
;
3933 demand_empty_rest_of_line ();
3936 /* The AIX assembler automatically aligns the operands of a .long or
3937 .short pseudo-op, and we want to be compatible. */
3940 ppc_xcoff_cons (int log_size
)
3942 frag_align (log_size
, 0, 0);
3943 record_alignment (now_seg
, log_size
);
3944 cons (1 << log_size
);
3948 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
3953 (void) expression (&exp
);
3955 if (exp
.X_op
!= O_constant
)
3957 as_bad (_("non-constant byte count"));
3961 byte_count
= exp
.X_add_number
;
3963 if (*input_line_pointer
!= ',')
3965 as_bad (_("missing value"));
3969 ++input_line_pointer
;
3973 #endif /* OBJ_XCOFF */
3974 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3976 /* The .tc pseudo-op. This is used when generating either XCOFF or
3977 ELF. This takes two or more arguments.
3979 When generating XCOFF output, the first argument is the name to
3980 give to this location in the toc; this will be a symbol with class
3981 TC. The rest of the arguments are N-byte values to actually put at
3982 this location in the TOC; often there is just one more argument, a
3983 relocatable symbol reference. The size of the value to store
3984 depends on target word size. A 32-bit target uses 4-byte values, a
3985 64-bit target uses 8-byte values.
3987 When not generating XCOFF output, the arguments are the same, but
3988 the first argument is simply ignored. */
3991 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
3995 /* Define the TOC symbol name. */
4001 if (ppc_toc_csect
== (symbolS
*) NULL
4002 || ppc_toc_csect
!= ppc_current_csect
)
4004 as_bad (_(".tc not in .toc section"));
4005 ignore_rest_of_line ();
4009 name
= input_line_pointer
;
4010 endc
= get_symbol_end ();
4012 sym
= symbol_find_or_make (name
);
4014 *input_line_pointer
= endc
;
4016 if (S_IS_DEFINED (sym
))
4020 label
= symbol_get_tc (ppc_current_csect
)->within
;
4021 if (symbol_get_tc (label
)->class != XMC_TC0
)
4023 as_bad (_(".tc with no label"));
4024 ignore_rest_of_line ();
4028 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4029 symbol_set_frag (label
, symbol_get_frag (sym
));
4030 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4032 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4033 ++input_line_pointer
;
4038 S_SET_SEGMENT (sym
, now_seg
);
4039 symbol_set_frag (sym
, frag_now
);
4040 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4041 symbol_get_tc (sym
)->class = XMC_TC
;
4042 symbol_get_tc (sym
)->output
= 1;
4044 ppc_frob_label (sym
);
4047 #endif /* OBJ_XCOFF */
4051 /* Skip the TOC symbol name. */
4052 while (is_part_of_name (*input_line_pointer
)
4053 || *input_line_pointer
== '['
4054 || *input_line_pointer
== ']'
4055 || *input_line_pointer
== '{'
4056 || *input_line_pointer
== '}')
4057 ++input_line_pointer
;
4059 /* Align to a four/eight byte boundary. */
4060 align
= ppc_obj64
? 3 : 2;
4061 frag_align (align
, 0, 0);
4062 record_alignment (now_seg
, align
);
4063 #endif /* OBJ_ELF */
4065 if (*input_line_pointer
!= ',')
4066 demand_empty_rest_of_line ();
4069 ++input_line_pointer
;
4070 cons (ppc_obj64
? 8 : 4);
4074 /* Pseudo-op .machine. */
4077 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4080 #define MAX_HISTORY 100
4081 static unsigned long *cpu_history
;
4082 static int curr_hist
;
4086 if (*input_line_pointer
== '"')
4089 cpu_string
= demand_copy_C_string (&len
);
4094 cpu_string
= input_line_pointer
;
4095 c
= get_symbol_end ();
4096 cpu_string
= xstrdup (cpu_string
);
4097 *input_line_pointer
= c
;
4100 if (cpu_string
!= NULL
)
4102 unsigned long old_cpu
= ppc_cpu
;
4105 for (p
= cpu_string
; *p
!= 0; p
++)
4108 if (strcmp (cpu_string
, "push") == 0)
4110 if (cpu_history
== NULL
)
4111 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4113 if (curr_hist
>= MAX_HISTORY
)
4114 as_bad (_(".machine stack overflow"));
4116 cpu_history
[curr_hist
++] = ppc_cpu
;
4118 else if (strcmp (cpu_string
, "pop") == 0)
4121 as_bad (_(".machine stack underflow"));
4123 ppc_cpu
= cpu_history
[--curr_hist
];
4125 else if (parse_cpu (cpu_string
))
4128 as_bad (_("invalid machine `%s'"), cpu_string
);
4130 if (ppc_cpu
!= old_cpu
)
4131 ppc_setup_opcodes ();
4134 demand_empty_rest_of_line ();
4137 /* See whether a symbol is in the TOC section. */
4140 ppc_is_toc_sym (symbolS
*sym
)
4143 return symbol_get_tc (sym
)->class == XMC_TC
;
4146 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4148 return strcmp (sname
, ".toc") == 0;
4150 return strcmp (sname
, ".got") == 0;
4153 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4157 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4159 /* Set the current section. */
4161 ppc_set_current_section (segT
new)
4163 ppc_previous_section
= ppc_current_section
;
4164 ppc_current_section
= new;
4167 /* pseudo-op: .previous
4168 behaviour: toggles the current section with the previous section.
4170 warnings: "No previous section" */
4173 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4177 if (ppc_previous_section
== NULL
)
4179 as_warn (_("No previous section to return to. Directive ignored."));
4183 subseg_set (ppc_previous_section
, 0);
4185 ppc_set_current_section (ppc_previous_section
);
4188 /* pseudo-op: .pdata
4189 behaviour: predefined read only data section
4193 initial: .section .pdata "adr3"
4194 a - don't know -- maybe a misprint
4195 d - initialized data
4197 3 - double word aligned (that would be 4 byte boundary)
4200 Tag index tables (also known as the function table) for exception
4201 handling, debugging, etc. */
4204 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4206 if (pdata_section
== 0)
4208 pdata_section
= subseg_new (".pdata", 0);
4210 bfd_set_section_flags (stdoutput
, pdata_section
,
4211 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4212 | SEC_READONLY
| SEC_DATA
));
4214 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4218 pdata_section
= subseg_new (".pdata", 0);
4220 ppc_set_current_section (pdata_section
);
4223 /* pseudo-op: .ydata
4224 behaviour: predefined read only data section
4228 initial: .section .ydata "drw3"
4229 a - don't know -- maybe a misprint
4230 d - initialized data
4232 3 - double word aligned (that would be 4 byte boundary)
4234 Tag tables (also known as the scope table) for exception handling,
4238 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4240 if (ydata_section
== 0)
4242 ydata_section
= subseg_new (".ydata", 0);
4243 bfd_set_section_flags (stdoutput
, ydata_section
,
4244 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4245 | SEC_READONLY
| SEC_DATA
));
4247 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4251 ydata_section
= subseg_new (".ydata", 0);
4253 ppc_set_current_section (ydata_section
);
4256 /* pseudo-op: .reldata
4257 behaviour: predefined read write data section
4258 double word aligned (4-byte)
4259 FIXME: relocation is applied to it
4260 FIXME: what's the difference between this and .data?
4263 initial: .section .reldata "drw3"
4264 d - initialized data
4267 3 - double word aligned (that would be 8 byte boundary)
4270 Like .data, but intended to hold data subject to relocation, such as
4271 function descriptors, etc. */
4274 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4276 if (reldata_section
== 0)
4278 reldata_section
= subseg_new (".reldata", 0);
4280 bfd_set_section_flags (stdoutput
, reldata_section
,
4281 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4284 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4288 reldata_section
= subseg_new (".reldata", 0);
4290 ppc_set_current_section (reldata_section
);
4293 /* pseudo-op: .rdata
4294 behaviour: predefined read only data section
4298 initial: .section .rdata "dr3"
4299 d - initialized data
4301 3 - double word aligned (that would be 4 byte boundary) */
4304 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
4306 if (rdata_section
== 0)
4308 rdata_section
= subseg_new (".rdata", 0);
4309 bfd_set_section_flags (stdoutput
, rdata_section
,
4310 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4311 | SEC_READONLY
| SEC_DATA
));
4313 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4317 rdata_section
= subseg_new (".rdata", 0);
4319 ppc_set_current_section (rdata_section
);
4322 /* pseudo-op: .ualong
4323 behaviour: much like .int, with the exception that no alignment is
4325 FIXME: test the alignment statement
4330 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
4336 /* pseudo-op: .znop <symbol name>
4337 behaviour: Issue a nop instruction
4338 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4339 the supplied symbol name.
4341 warnings: Missing symbol name */
4344 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
4347 const struct powerpc_opcode
*opcode
;
4358 /* Strip out the symbol name. */
4359 symbol_name
= input_line_pointer
;
4360 c
= get_symbol_end ();
4362 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4363 strcpy (name
, symbol_name
);
4365 sym
= symbol_find_or_make (name
);
4367 *input_line_pointer
= c
;
4371 /* Look up the opcode in the hash table. */
4372 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4374 /* Stick in the nop. */
4375 insn
= opcode
->opcode
;
4377 /* Write out the instruction. */
4379 md_number_to_chars (f
, insn
, 4);
4381 f
- frag_now
->fr_literal
,
4386 BFD_RELOC_16_GOT_PCREL
);
4396 ppc_pe_comm (int lcomm
)
4405 name
= input_line_pointer
;
4406 c
= get_symbol_end ();
4408 /* just after name is now '\0'. */
4409 p
= input_line_pointer
;
4412 if (*input_line_pointer
!= ',')
4414 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4415 ignore_rest_of_line ();
4419 input_line_pointer
++; /* skip ',' */
4420 if ((temp
= get_absolute_expression ()) < 0)
4422 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4423 ignore_rest_of_line ();
4429 /* The third argument to .comm is the alignment. */
4430 if (*input_line_pointer
!= ',')
4434 ++input_line_pointer
;
4435 align
= get_absolute_expression ();
4438 as_warn (_("ignoring bad alignment"));
4445 symbolP
= symbol_find_or_make (name
);
4448 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4450 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4451 S_GET_NAME (symbolP
));
4452 ignore_rest_of_line ();
4456 if (S_GET_VALUE (symbolP
))
4458 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4459 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4460 S_GET_NAME (symbolP
),
4461 (long) S_GET_VALUE (symbolP
),
4466 S_SET_VALUE (symbolP
, (valueT
) temp
);
4467 S_SET_EXTERNAL (symbolP
);
4468 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
4471 demand_empty_rest_of_line ();
4475 * implement the .section pseudo op:
4476 * .section name {, "flags"}
4478 * | +--- optional flags: 'b' for bss
4480 * +-- section name 'l' for lib
4484 * 'd' (apparently m88k for data)
4486 * But if the argument is not a quoted string, treat it as a
4487 * subsegment number.
4489 * FIXME: this is a copy of the section processing from obj-coff.c, with
4490 * additions/changes for the moto-pas assembler support. There are three
4493 * FIXME: I just noticed this. This doesn't work at all really. It it
4494 * setting bits that bfd probably neither understands or uses. The
4495 * correct approach (?) will have to incorporate extra fields attached
4496 * to the section to hold the system specific stuff. (krk)
4499 * 'a' - unknown - referred to in documentation, but no definition supplied
4500 * 'c' - section has code
4501 * 'd' - section has initialized data
4502 * 'u' - section has uninitialized data
4503 * 'i' - section contains directives (info)
4504 * 'n' - section can be discarded
4505 * 'R' - remove section at link time
4507 * Section Protection:
4508 * 'r' - section is readable
4509 * 'w' - section is writeable
4510 * 'x' - section is executable
4511 * 's' - section is sharable
4513 * Section Alignment:
4514 * '0' - align to byte boundary
4515 * '1' - align to halfword undary
4516 * '2' - align to word boundary
4517 * '3' - align to doubleword boundary
4518 * '4' - align to quadword boundary
4519 * '5' - align to 32 byte boundary
4520 * '6' - align to 64 byte boundary
4525 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
4527 /* Strip out the section name. */
4536 section_name
= input_line_pointer
;
4537 c
= get_symbol_end ();
4539 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4540 strcpy (name
, section_name
);
4542 *input_line_pointer
= c
;
4547 flags
= SEC_NO_FLAGS
;
4549 if (strcmp (name
, ".idata$2") == 0)
4553 else if (strcmp (name
, ".idata$3") == 0)
4557 else if (strcmp (name
, ".idata$4") == 0)
4561 else if (strcmp (name
, ".idata$5") == 0)
4565 else if (strcmp (name
, ".idata$6") == 0)
4570 /* Default alignment to 16 byte boundary. */
4573 if (*input_line_pointer
== ',')
4575 ++input_line_pointer
;
4577 if (*input_line_pointer
!= '"')
4578 exp
= get_absolute_expression ();
4581 ++input_line_pointer
;
4582 while (*input_line_pointer
!= '"'
4583 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4585 switch (*input_line_pointer
)
4587 /* Section Contents */
4588 case 'a': /* unknown */
4589 as_bad (_("Unsupported section attribute -- 'a'"));
4591 case 'c': /* code section */
4594 case 'd': /* section has initialized data */
4597 case 'u': /* section has uninitialized data */
4598 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4602 case 'i': /* section contains directives (info) */
4603 /* FIXME: This is IMAGE_SCN_LNK_INFO
4605 flags
|= SEC_HAS_CONTENTS
;
4607 case 'n': /* section can be discarded */
4610 case 'R': /* Remove section at link time */
4611 flags
|= SEC_NEVER_LOAD
;
4613 #if IFLICT_BRAIN_DAMAGE
4614 /* Section Protection */
4615 case 'r': /* section is readable */
4616 flags
|= IMAGE_SCN_MEM_READ
;
4618 case 'w': /* section is writeable */
4619 flags
|= IMAGE_SCN_MEM_WRITE
;
4621 case 'x': /* section is executable */
4622 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4624 case 's': /* section is sharable */
4625 flags
|= IMAGE_SCN_MEM_SHARED
;
4628 /* Section Alignment */
4629 case '0': /* align to byte boundary */
4630 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4633 case '1': /* align to halfword boundary */
4634 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4637 case '2': /* align to word boundary */
4638 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4641 case '3': /* align to doubleword boundary */
4642 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4645 case '4': /* align to quadword boundary */
4646 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4649 case '5': /* align to 32 byte boundary */
4650 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4653 case '6': /* align to 64 byte boundary */
4654 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4659 as_bad (_("unknown section attribute '%c'"),
4660 *input_line_pointer
);
4663 ++input_line_pointer
;
4665 if (*input_line_pointer
== '"')
4666 ++input_line_pointer
;
4670 sec
= subseg_new (name
, (subsegT
) exp
);
4672 ppc_set_current_section (sec
);
4674 if (flags
!= SEC_NO_FLAGS
)
4676 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4677 as_bad (_("error setting flags for \"%s\": %s"),
4678 bfd_section_name (stdoutput
, sec
),
4679 bfd_errmsg (bfd_get_error ()));
4682 bfd_set_section_alignment (stdoutput
, sec
, align
);
4686 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
4692 name
= input_line_pointer
;
4693 endc
= get_symbol_end ();
4695 ext_sym
= symbol_find_or_make (name
);
4697 *input_line_pointer
= endc
;
4699 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4700 SF_SET_FUNCTION (ext_sym
);
4701 SF_SET_PROCESS (ext_sym
);
4702 coff_add_linesym (ext_sym
);
4704 demand_empty_rest_of_line ();
4708 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
4710 if (tocdata_section
== 0)
4712 tocdata_section
= subseg_new (".tocd", 0);
4713 /* FIXME: section flags won't work. */
4714 bfd_set_section_flags (stdoutput
, tocdata_section
,
4715 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4716 | SEC_READONLY
| SEC_DATA
));
4718 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4722 rdata_section
= subseg_new (".tocd", 0);
4725 ppc_set_current_section (tocdata_section
);
4727 demand_empty_rest_of_line ();
4730 /* Don't adjust TOC relocs to use the section symbol. */
4733 ppc_pe_fix_adjustable (fixS
*fix
)
4735 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4742 /* XCOFF specific symbol and file handling. */
4744 /* Canonicalize the symbol name. We use the to force the suffix, if
4745 any, to use square brackets, and to be in upper case. */
4748 ppc_canonicalize_symbol_name (char *name
)
4752 if (ppc_stab_symbol
)
4755 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4769 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4772 if (*s
== '\0' || s
[1] != '\0')
4773 as_bad (_("bad symbol suffix"));
4781 /* Set the class of a symbol based on the suffix, if any. This is
4782 called whenever a new symbol is created. */
4785 ppc_symbol_new_hook (symbolS
*sym
)
4787 struct ppc_tc_sy
*tc
;
4790 tc
= symbol_get_tc (sym
);
4794 tc
->real_name
= NULL
;
4800 if (ppc_stab_symbol
)
4803 s
= strchr (S_GET_NAME (sym
), '[');
4804 if (s
== (const char *) NULL
)
4806 /* There is no suffix. */
4815 if (strcmp (s
, "BS]") == 0)
4819 if (strcmp (s
, "DB]") == 0)
4821 else if (strcmp (s
, "DS]") == 0)
4825 if (strcmp (s
, "GL]") == 0)
4829 if (strcmp (s
, "PR]") == 0)
4833 if (strcmp (s
, "RO]") == 0)
4835 else if (strcmp (s
, "RW]") == 0)
4839 if (strcmp (s
, "SV]") == 0)
4843 if (strcmp (s
, "TC]") == 0)
4845 else if (strcmp (s
, "TI]") == 0)
4847 else if (strcmp (s
, "TB]") == 0)
4849 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4850 tc
->class = XMC_TC0
;
4853 if (strcmp (s
, "UA]") == 0)
4855 else if (strcmp (s
, "UC]") == 0)
4859 if (strcmp (s
, "XO]") == 0)
4864 if (tc
->class == -1)
4865 as_bad (_("Unrecognized symbol suffix"));
4868 /* Set the class of a label based on where it is defined. This
4869 handles symbols without suffixes. Also, move the symbol so that it
4870 follows the csect symbol. */
4873 ppc_frob_label (symbolS
*sym
)
4875 if (ppc_current_csect
!= (symbolS
*) NULL
)
4877 if (symbol_get_tc (sym
)->class == -1)
4878 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4880 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4881 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4882 &symbol_rootP
, &symbol_lastP
);
4883 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4887 dwarf2_emit_label (sym
);
4891 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4892 seen. It tells ppc_adjust_symtab whether it needs to look through
4895 static bfd_boolean ppc_saw_abs
;
4897 /* Change the name of a symbol just before writing it out. Set the
4898 real name if the .rename pseudo-op was used. Otherwise, remove any
4899 class suffix. Return 1 if the symbol should not be included in the
4903 ppc_frob_symbol (symbolS
*sym
)
4905 static symbolS
*ppc_last_function
;
4906 static symbolS
*set_end
;
4908 /* Discard symbols that should not be included in the output symbol
4910 if (! symbol_used_in_reloc_p (sym
)
4911 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4912 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4913 && ! symbol_get_tc (sym
)->output
4914 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4917 /* This one will disappear anyway. Don't make a csect sym for it. */
4918 if (sym
== abs_section_sym
)
4921 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4922 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4928 name
= S_GET_NAME (sym
);
4929 s
= strchr (name
, '[');
4930 if (s
!= (char *) NULL
)
4936 snew
= xmalloc (len
+ 1);
4937 memcpy (snew
, name
, len
);
4940 S_SET_NAME (sym
, snew
);
4944 if (set_end
!= (symbolS
*) NULL
)
4946 SA_SET_SYM_ENDNDX (set_end
, sym
);
4950 if (SF_GET_FUNCTION (sym
))
4952 if (ppc_last_function
!= (symbolS
*) NULL
)
4953 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4954 ppc_last_function
= sym
;
4955 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4957 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4958 SA_SET_SYM_FSIZE (sym
,
4959 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4962 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4963 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4965 if (ppc_last_function
== (symbolS
*) NULL
)
4966 as_bad (_(".ef with no preceding .function"));
4969 set_end
= ppc_last_function
;
4970 ppc_last_function
= NULL
;
4972 /* We don't have a C_EFCN symbol, but we need to force the
4973 COFF backend to believe that it has seen one. */
4974 coff_last_function
= NULL
;
4978 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4979 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4980 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4981 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4982 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4983 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4984 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4985 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4986 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4987 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4988 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4990 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4991 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4994 union internal_auxent
*a
;
4996 /* Create a csect aux. */
4997 i
= S_GET_NUMBER_AUXILIARY (sym
);
4998 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4999 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5000 if (symbol_get_tc (sym
)->class == XMC_TC0
)
5002 /* This is the TOC table. */
5003 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5004 a
->x_csect
.x_scnlen
.l
= 0;
5005 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5007 else if (symbol_get_tc (sym
)->subseg
!= 0)
5009 /* This is a csect symbol. x_scnlen is the size of the
5011 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5012 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5013 S_GET_SEGMENT (sym
))
5014 - S_GET_VALUE (sym
));
5017 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5018 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5019 - S_GET_VALUE (sym
));
5021 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5023 else if (S_GET_SEGMENT (sym
) == bss_section
)
5025 /* This is a common symbol. */
5026 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5027 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5028 if (S_IS_EXTERNAL (sym
))
5029 symbol_get_tc (sym
)->class = XMC_RW
;
5031 symbol_get_tc (sym
)->class = XMC_BS
;
5033 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5035 /* This is an absolute symbol. The csect will be created by
5036 ppc_adjust_symtab. */
5038 a
->x_csect
.x_smtyp
= XTY_LD
;
5039 if (symbol_get_tc (sym
)->class == -1)
5040 symbol_get_tc (sym
)->class = XMC_XO
;
5042 else if (! S_IS_DEFINED (sym
))
5044 /* This is an external symbol. */
5045 a
->x_csect
.x_scnlen
.l
= 0;
5046 a
->x_csect
.x_smtyp
= XTY_ER
;
5048 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5052 /* This is a TOC definition. x_scnlen is the size of the
5054 next
= symbol_next (sym
);
5055 while (symbol_get_tc (next
)->class == XMC_TC0
)
5056 next
= symbol_next (next
);
5057 if (next
== (symbolS
*) NULL
5058 || symbol_get_tc (next
)->class != XMC_TC
)
5060 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5061 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5063 - S_GET_VALUE (sym
));
5065 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5066 - S_GET_VALUE (sym
));
5070 resolve_symbol_value (next
);
5071 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5072 - S_GET_VALUE (sym
));
5074 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5080 /* This is a normal symbol definition. x_scnlen is the
5081 symbol index of the containing csect. */
5082 if (S_GET_SEGMENT (sym
) == text_section
)
5083 csect
= ppc_text_csects
;
5084 else if (S_GET_SEGMENT (sym
) == data_section
)
5085 csect
= ppc_data_csects
;
5089 /* Skip the initial dummy symbol. */
5090 csect
= symbol_get_tc (csect
)->next
;
5092 if (csect
== (symbolS
*) NULL
)
5094 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5095 a
->x_csect
.x_scnlen
.l
= 0;
5099 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5101 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5102 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5103 > S_GET_VALUE (sym
))
5105 csect
= symbol_get_tc (csect
)->next
;
5108 a
->x_csect
.x_scnlen
.p
=
5109 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5110 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5113 a
->x_csect
.x_smtyp
= XTY_LD
;
5116 a
->x_csect
.x_parmhash
= 0;
5117 a
->x_csect
.x_snhash
= 0;
5118 if (symbol_get_tc (sym
)->class == -1)
5119 a
->x_csect
.x_smclas
= XMC_PR
;
5121 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5122 a
->x_csect
.x_stab
= 0;
5123 a
->x_csect
.x_snstab
= 0;
5125 /* Don't let the COFF backend resort these symbols. */
5126 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5128 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5130 /* We want the value to be the symbol index of the referenced
5131 csect symbol. BFD will do that for us if we set the right
5133 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5134 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5136 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5137 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5139 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5144 /* The value is the offset from the enclosing csect. */
5145 block
= symbol_get_tc (sym
)->within
;
5146 csect
= symbol_get_tc (block
)->within
;
5147 resolve_symbol_value (csect
);
5148 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5150 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5151 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5153 /* We want the value to be a file offset into the line numbers.
5154 BFD will do that for us if we set the right flags. We have
5155 already set the value correctly. */
5156 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5162 /* Adjust the symbol table. This creates csect symbols for all
5163 absolute symbols. */
5166 ppc_adjust_symtab (void)
5173 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5177 union internal_auxent
*a
;
5179 if (S_GET_SEGMENT (sym
) != absolute_section
)
5182 csect
= symbol_create (".abs[XO]", absolute_section
,
5183 S_GET_VALUE (sym
), &zero_address_frag
);
5184 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5185 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5186 i
= S_GET_NUMBER_AUXILIARY (csect
);
5187 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5188 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5189 a
->x_csect
.x_scnlen
.l
= 0;
5190 a
->x_csect
.x_smtyp
= XTY_SD
;
5191 a
->x_csect
.x_parmhash
= 0;
5192 a
->x_csect
.x_snhash
= 0;
5193 a
->x_csect
.x_smclas
= XMC_XO
;
5194 a
->x_csect
.x_stab
= 0;
5195 a
->x_csect
.x_snstab
= 0;
5197 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5199 i
= S_GET_NUMBER_AUXILIARY (sym
);
5200 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5201 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5202 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5205 ppc_saw_abs
= FALSE
;
5208 /* Set the VMA for a section. This is called on all the sections in
5212 ppc_frob_section (asection
*sec
)
5214 static bfd_vma vma
= 0;
5216 vma
= md_section_align (sec
, vma
);
5217 bfd_set_section_vma (stdoutput
, sec
, vma
);
5218 vma
+= bfd_section_size (stdoutput
, sec
);
5221 #endif /* OBJ_XCOFF */
5224 md_atof (int type
, char *litp
, int *sizep
)
5226 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
5229 /* Write a value out to the object file, using the appropriate
5233 md_number_to_chars (char *buf
, valueT val
, int n
)
5235 if (target_big_endian
)
5236 number_to_chars_bigendian (buf
, val
, n
);
5238 number_to_chars_littleendian (buf
, val
, n
);
5241 /* Align a section (I don't know why this is machine dependent). */
5244 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5249 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5251 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5255 /* We don't have any form of relaxing. */
5258 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5259 asection
*seg ATTRIBUTE_UNUSED
)
5265 /* Convert a machine dependent frag. We never generate these. */
5268 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5269 asection
*sec ATTRIBUTE_UNUSED
,
5270 fragS
*fragp ATTRIBUTE_UNUSED
)
5275 /* We have no need to default values of symbols. */
5278 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
5283 /* Functions concerning relocs. */
5285 /* The location from which a PC relative jump should be calculated,
5286 given a PC relative reloc. */
5289 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
5291 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5296 /* This is called to see whether a fixup should be adjusted to use a
5297 section symbol. We take the opportunity to change a fixup against
5298 a symbol in the TOC subsegment into a reloc against the
5299 corresponding .tc symbol. */
5302 ppc_fix_adjustable (fixS
*fix
)
5304 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5305 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5306 TC_SYMFIELD_TYPE
*tc
;
5308 if (symseg
== absolute_section
)
5311 if (ppc_toc_csect
!= (symbolS
*) NULL
5312 && fix
->fx_addsy
!= ppc_toc_csect
5313 && symseg
== data_section
5314 && val
>= ppc_toc_frag
->fr_address
5315 && (ppc_after_toc_frag
== (fragS
*) NULL
5316 || val
< ppc_after_toc_frag
->fr_address
))
5320 for (sy
= symbol_next (ppc_toc_csect
);
5321 sy
!= (symbolS
*) NULL
;
5322 sy
= symbol_next (sy
))
5324 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5326 if (sy_tc
->class == XMC_TC0
)
5328 if (sy_tc
->class != XMC_TC
)
5330 if (val
== resolve_symbol_value (sy
))
5333 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5338 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5339 _("symbol in .toc does not match any .tc"));
5342 /* Possibly adjust the reloc to be against the csect. */
5343 tc
= symbol_get_tc (fix
->fx_addsy
);
5345 && tc
->class != XMC_TC0
5346 && tc
->class != XMC_TC
5347 && symseg
!= bss_section
5348 /* Don't adjust if this is a reloc in the toc section. */
5349 && (symseg
!= data_section
5350 || ppc_toc_csect
== NULL
5351 || val
< ppc_toc_frag
->fr_address
5352 || (ppc_after_toc_frag
!= NULL
5353 && val
>= ppc_after_toc_frag
->fr_address
)))
5356 symbolS
*next_csect
;
5358 if (symseg
== text_section
)
5359 csect
= ppc_text_csects
;
5360 else if (symseg
== data_section
)
5361 csect
= ppc_data_csects
;
5365 /* Skip the initial dummy symbol. */
5366 csect
= symbol_get_tc (csect
)->next
;
5368 if (csect
!= (symbolS
*) NULL
)
5370 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5371 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5373 /* If the csect address equals the symbol value, then we
5374 have to look through the full symbol table to see
5375 whether this is the csect we want. Note that we will
5376 only get here if the csect has zero length. */
5377 if (symbol_get_frag (csect
)->fr_address
== val
5378 && S_GET_VALUE (csect
) == val
)
5382 for (scan
= symbol_next (csect
);
5384 scan
= symbol_next (scan
))
5386 if (symbol_get_tc (scan
)->subseg
!= 0)
5388 if (scan
== fix
->fx_addsy
)
5392 /* If we found the symbol before the next csect
5393 symbol, then this is the csect we want. */
5394 if (scan
== fix
->fx_addsy
)
5401 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5402 fix
->fx_addsy
= csect
;
5407 /* Adjust a reloc against a .lcomm symbol to be against the base
5409 if (symseg
== bss_section
5410 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5412 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5414 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5421 /* A reloc from one csect to another must be kept. The assembler
5422 will, of course, keep relocs between sections, and it will keep
5423 absolute relocs, but we need to force it to keep PC relative relocs
5424 between two csects in the same section. */
5427 ppc_force_relocation (fixS
*fix
)
5429 /* At this point fix->fx_addsy should already have been converted to
5430 a csect symbol. If the csect does not include the fragment, then
5431 we need to force the relocation. */
5433 && fix
->fx_addsy
!= NULL
5434 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5435 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5436 > fix
->fx_frag
->fr_address
)
5437 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5438 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5439 <= fix
->fx_frag
->fr_address
))))
5442 return generic_force_reloc (fix
);
5445 #endif /* OBJ_XCOFF */
5448 /* If this function returns non-zero, it guarantees that a relocation
5449 will be emitted for a fixup. */
5452 ppc_force_relocation (fixS
*fix
)
5454 /* Branch prediction relocations must force a relocation, as must
5455 the vtable description relocs. */
5456 switch (fix
->fx_r_type
)
5458 case BFD_RELOC_PPC_B16_BRTAKEN
:
5459 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5460 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5461 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5462 case BFD_RELOC_24_PLT_PCREL
:
5463 case BFD_RELOC_PPC64_TOC
:
5469 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5470 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5473 return generic_force_reloc (fix
);
5477 ppc_fix_adjustable (fixS
*fix
)
5479 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5480 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5481 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5482 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5483 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5484 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5485 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5486 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5487 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5491 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5492 rs_align_code frag. */
5495 ppc_handle_align (struct frag
*fragP
)
5497 valueT count
= (fragP
->fr_next
->fr_address
5498 - (fragP
->fr_address
+ fragP
->fr_fix
));
5500 if (count
!= 0 && (count
& 3) == 0)
5502 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
5505 md_number_to_chars (dest
, 0x60000000, 4);
5507 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0)
5509 /* For power6, we want the last nop to be a group terminating
5510 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5511 immediately after this one, with its address set to the last
5512 nop location. This will automatically reduce the number of
5513 nops in the current frag by one. */
5516 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
5518 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
5519 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
5520 group_nop
->fr_fix
= 0;
5521 group_nop
->fr_offset
= 1;
5522 group_nop
->fr_type
= rs_fill
;
5523 fragP
->fr_next
= group_nop
;
5524 dest
= group_nop
->fr_literal
;
5527 md_number_to_chars (dest
, 0x60210000, 4);
5532 /* Apply a fixup to the object code. This is called for all the
5533 fixups we generated by the call to fix_new_exp, above. In the call
5534 above we used a reloc code which was the largest legal reloc code
5535 plus the operand index. Here we undo that to recover the operand
5536 index. At this point all symbol values should be fully resolved,
5537 and we attempt to completely resolve the reloc. If we can not do
5538 that, we determine the correct reloc code and put it back in the
5542 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5544 valueT value
= * valP
;
5547 if (fixP
->fx_addsy
!= NULL
)
5549 /* Hack around bfd_install_relocation brain damage. */
5551 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5556 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5557 the symbol values. If we are doing this relocation the code in
5558 write.c is going to call bfd_install_relocation, which is also
5559 going to use the symbol value. That means that if the reloc is
5560 fully resolved we want to use *valP since bfd_install_relocation is
5562 However, if the reloc is not fully resolved we do not want to use
5563 *valP, and must use fx_offset instead. However, if the reloc
5564 is PC relative, we do want to use *valP since it includes the
5565 result of md_pcrel_from. This is confusing. */
5566 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5569 else if (fixP
->fx_pcrel
)
5573 value
= fixP
->fx_offset
;
5576 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5578 /* We can't actually support subtracting a symbol. */
5579 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5582 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5585 const struct powerpc_operand
*operand
;
5589 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5591 operand
= &powerpc_operands
[opindex
];
5594 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5595 does not generate a reloc. It uses the offset of `sym' within its
5596 csect. Other usages, such as `.long sym', generate relocs. This
5597 is the documented behaviour of non-TOC symbols. */
5598 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5599 && (operand
->bitm
& 0xfff0) == 0xfff0
5600 && operand
->shift
== 0
5601 && (operand
->insert
== NULL
|| ppc_obj64
)
5602 && fixP
->fx_addsy
!= NULL
5603 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5604 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5605 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5606 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5608 value
= fixP
->fx_offset
;
5613 /* Fetch the instruction, insert the fully resolved operand
5614 value, and stuff the instruction back again. */
5615 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5616 if (target_big_endian
)
5617 insn
= bfd_getb32 ((unsigned char *) where
);
5619 insn
= bfd_getl32 ((unsigned char *) where
);
5620 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5621 fixP
->fx_file
, fixP
->fx_line
);
5622 if (target_big_endian
)
5623 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5625 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5628 /* Nothing else to do here. */
5631 assert (fixP
->fx_addsy
!= NULL
);
5633 /* Determine a BFD reloc value based on the operand information.
5634 We are only prepared to turn a few of the operands into
5636 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5637 && operand
->bitm
== 0x3fffffc
5638 && operand
->shift
== 0)
5639 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5640 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5641 && operand
->bitm
== 0xfffc
5642 && operand
->shift
== 0)
5644 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5647 if (target_big_endian
)
5648 fixP
->fx_where
+= 2;
5651 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5652 && operand
->bitm
== 0x3fffffc
5653 && operand
->shift
== 0)
5654 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5655 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5656 && operand
->bitm
== 0xfffc
5657 && operand
->shift
== 0)
5659 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5662 if (target_big_endian
)
5663 fixP
->fx_where
+= 2;
5666 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5667 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5668 && (operand
->bitm
& 0xfff0) == 0xfff0
5669 && operand
->shift
== 0)
5671 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5673 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5676 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5677 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5682 fixP
->fx_r_type
= BFD_RELOC_16
;
5685 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5686 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5690 if (target_big_endian
)
5691 fixP
->fx_where
+= 2;
5693 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5699 /* Use expr_symbol_where to see if this is an expression
5701 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5702 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5703 _("unresolved expression that must be resolved"));
5705 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5706 _("unsupported relocation against %s"),
5707 S_GET_NAME (fixP
->fx_addsy
));
5715 ppc_elf_validate_fix (fixP
, seg
);
5717 switch (fixP
->fx_r_type
)
5719 case BFD_RELOC_CTOR
:
5726 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5730 case BFD_RELOC_32_PCREL
:
5731 case BFD_RELOC_PPC_EMB_NADDR32
:
5732 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5739 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5742 case BFD_RELOC_64_PCREL
:
5743 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5747 case BFD_RELOC_GPREL16
:
5748 case BFD_RELOC_16_GOT_PCREL
:
5749 case BFD_RELOC_16_GOTOFF
:
5750 case BFD_RELOC_LO16_GOTOFF
:
5751 case BFD_RELOC_HI16_GOTOFF
:
5752 case BFD_RELOC_HI16_S_GOTOFF
:
5753 case BFD_RELOC_16_BASEREL
:
5754 case BFD_RELOC_LO16_BASEREL
:
5755 case BFD_RELOC_HI16_BASEREL
:
5756 case BFD_RELOC_HI16_S_BASEREL
:
5757 case BFD_RELOC_PPC_EMB_NADDR16
:
5758 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5759 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5760 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5761 case BFD_RELOC_PPC_EMB_SDAI16
:
5762 case BFD_RELOC_PPC_EMB_SDA2REL
:
5763 case BFD_RELOC_PPC_EMB_SDA2I16
:
5764 case BFD_RELOC_PPC_EMB_RELSEC16
:
5765 case BFD_RELOC_PPC_EMB_RELST_LO
:
5766 case BFD_RELOC_PPC_EMB_RELST_HI
:
5767 case BFD_RELOC_PPC_EMB_RELST_HA
:
5768 case BFD_RELOC_PPC_EMB_RELSDA
:
5769 case BFD_RELOC_PPC_TOC16
:
5771 case BFD_RELOC_PPC64_TOC16_LO
:
5772 case BFD_RELOC_PPC64_TOC16_HI
:
5773 case BFD_RELOC_PPC64_TOC16_HA
:
5777 if (fixP
->fx_addsy
!= NULL
)
5778 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5779 _("cannot emit PC relative %s relocation against %s"),
5780 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5781 S_GET_NAME (fixP
->fx_addsy
));
5783 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5784 _("cannot emit PC relative %s relocation"),
5785 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5788 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5794 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5797 case BFD_RELOC_16_PCREL
:
5798 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5802 case BFD_RELOC_LO16
:
5804 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5807 case BFD_RELOC_LO16_PCREL
:
5808 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5812 /* This case happens when you write, for example,
5814 where L1 and L2 are defined later. */
5815 case BFD_RELOC_HI16
:
5817 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5820 case BFD_RELOC_HI16_PCREL
:
5821 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5825 case BFD_RELOC_HI16_S
:
5827 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5830 case BFD_RELOC_HI16_S_PCREL
:
5831 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5836 case BFD_RELOC_PPC64_HIGHER
:
5839 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5840 PPC_HIGHER (value
), 2);
5843 case BFD_RELOC_PPC64_HIGHER_S
:
5846 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5847 PPC_HIGHERA (value
), 2);
5850 case BFD_RELOC_PPC64_HIGHEST
:
5853 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5854 PPC_HIGHEST (value
), 2);
5857 case BFD_RELOC_PPC64_HIGHEST_S
:
5860 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5861 PPC_HIGHESTA (value
), 2);
5864 case BFD_RELOC_PPC64_ADDR16_DS
:
5865 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5866 case BFD_RELOC_PPC64_GOT16_DS
:
5867 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5868 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5869 case BFD_RELOC_PPC64_SECTOFF_DS
:
5870 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5871 case BFD_RELOC_PPC64_TOC16_DS
:
5872 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5873 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5874 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5878 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5879 unsigned long val
, mask
;
5881 if (target_big_endian
)
5882 val
= bfd_getb32 (where
- 2);
5884 val
= bfd_getl32 (where
);
5886 /* lq insns reserve the four lsbs. */
5887 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5888 && (val
& (0x3f << 26)) == (56u << 26))
5890 val
|= value
& mask
;
5891 if (target_big_endian
)
5892 bfd_putb16 ((bfd_vma
) val
, where
);
5894 bfd_putl16 ((bfd_vma
) val
, where
);
5898 case BFD_RELOC_PPC_B16_BRTAKEN
:
5899 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5900 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5901 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5904 case BFD_RELOC_PPC_TLS
:
5907 case BFD_RELOC_PPC_DTPMOD
:
5908 case BFD_RELOC_PPC_TPREL16
:
5909 case BFD_RELOC_PPC_TPREL16_LO
:
5910 case BFD_RELOC_PPC_TPREL16_HI
:
5911 case BFD_RELOC_PPC_TPREL16_HA
:
5912 case BFD_RELOC_PPC_TPREL
:
5913 case BFD_RELOC_PPC_DTPREL16
:
5914 case BFD_RELOC_PPC_DTPREL16_LO
:
5915 case BFD_RELOC_PPC_DTPREL16_HI
:
5916 case BFD_RELOC_PPC_DTPREL16_HA
:
5917 case BFD_RELOC_PPC_DTPREL
:
5918 case BFD_RELOC_PPC_GOT_TLSGD16
:
5919 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5920 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5921 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5922 case BFD_RELOC_PPC_GOT_TLSLD16
:
5923 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5924 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5925 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5926 case BFD_RELOC_PPC_GOT_TPREL16
:
5927 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5928 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5929 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5930 case BFD_RELOC_PPC_GOT_DTPREL16
:
5931 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5932 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5933 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5934 case BFD_RELOC_PPC64_TPREL16_DS
:
5935 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5936 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5937 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5938 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5939 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5940 case BFD_RELOC_PPC64_DTPREL16_DS
:
5941 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5942 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5943 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5944 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5945 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5946 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5949 /* Because SDA21 modifies the register field, the size is set to 4
5950 bytes, rather than 2, so offset it here appropriately. */
5951 case BFD_RELOC_PPC_EMB_SDA21
:
5955 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5956 + ((target_big_endian
) ? 2 : 0),
5963 /* This can occur if there is a bug in the input assembler, eg:
5964 ".byte <undefined_symbol> - ." */
5966 as_bad (_("Unable to handle reference to symbol %s"),
5967 S_GET_NAME (fixP
->fx_addsy
));
5969 as_bad (_("Unable to resolve expression"));
5973 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5977 case BFD_RELOC_24_PLT_PCREL
:
5978 case BFD_RELOC_PPC_LOCAL24PC
:
5979 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
5987 /* Fetch the instruction, insert the fully resolved operand
5988 value, and stuff the instruction back again. */
5989 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5990 if (target_big_endian
)
5991 insn
= bfd_getb32 ((unsigned char *) where
);
5993 insn
= bfd_getl32 ((unsigned char *) where
);
5994 if ((value
& 3) != 0)
5995 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5996 _("must branch to an address a multiple of 4"));
5997 if ((offsetT
) value
< -0x40000000
5998 || (offsetT
) value
>= 0x40000000)
5999 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6000 _("@local or @plt branch destination is too far away, %ld bytes"),
6002 insn
= insn
| (value
& 0x03fffffc);
6003 if (target_big_endian
)
6004 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6006 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6010 case BFD_RELOC_VTABLE_INHERIT
:
6013 && !S_IS_DEFINED (fixP
->fx_addsy
)
6014 && !S_IS_WEAK (fixP
->fx_addsy
))
6015 S_SET_WEAK (fixP
->fx_addsy
);
6018 case BFD_RELOC_VTABLE_ENTRY
:
6023 /* Generated by reference to `sym@tocbase'. The sym is
6024 ignored by the linker. */
6025 case BFD_RELOC_PPC64_TOC
:
6031 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6038 fixP
->fx_addnumber
= value
;
6040 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6041 from the section contents. If we are going to be emitting a reloc
6042 then the section contents are immaterial, so don't warn if they
6043 happen to overflow. Leave such warnings to ld. */
6045 fixP
->fx_no_overflow
= 1;
6047 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6048 fixP
->fx_addnumber
= 0;
6052 fixP
->fx_addnumber
= 0;
6054 /* We want to use the offset within the data segment of the
6055 symbol, not the actual VMA of the symbol. */
6056 fixP
->fx_addnumber
=
6057 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
6063 /* Generate a reloc for a fixup. */
6066 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6070 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6072 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6073 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6074 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6075 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6076 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6078 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6079 _("reloc %d not supported by object file format"),
6080 (int) fixp
->fx_r_type
);
6083 reloc
->addend
= fixp
->fx_addnumber
;
6089 ppc_cfi_frame_initial_instructions (void)
6091 cfi_add_CFA_def_cfa (1, 0);
6095 tc_ppc_regname_to_dw2regnum (char *regname
)
6097 unsigned int regnum
= -1;
6101 static struct { char *name
; int dw2regnum
; } regnames
[] =
6103 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6104 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6105 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6106 { "spe_acc", 111 }, { "spefscr", 112 }
6109 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6110 if (strcmp (regnames
[i
].name
, regname
) == 0)
6111 return regnames
[i
].dw2regnum
;
6113 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6115 p
= regname
+ 1 + (regname
[1] == '.');
6116 regnum
= strtoul (p
, &q
, 10);
6117 if (p
== q
|| *q
|| regnum
>= 32)
6119 if (regname
[0] == 'f')
6121 else if (regname
[0] == 'v')
6124 else if (regname
[0] == 'c' && regname
[1] == 'r')
6126 p
= regname
+ 2 + (regname
[2] == '.');
6127 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6129 regnum
= p
[0] - '0' + 68;