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
;
1253 if (ppc_hash
!= NULL
)
1254 hash_die (ppc_hash
);
1255 if (ppc_macro_hash
!= NULL
)
1256 hash_die (ppc_macro_hash
);
1258 /* Insert the opcodes into a hash table. */
1259 ppc_hash
= hash_new ();
1261 if (ENABLE_CHECKING
)
1265 /* Check operand masks. Code here and in the disassembler assumes
1266 all the 1's in the mask are contiguous. */
1267 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1269 unsigned long mask
= powerpc_operands
[i
].bitm
;
1270 unsigned long right_bit
;
1273 right_bit
= mask
& -mask
;
1275 right_bit
= mask
& -mask
;
1276 if (mask
!= right_bit
)
1278 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1281 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1282 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1283 sizeof (powerpc_operands
[0])) == 0)
1285 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1292 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1293 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1295 if (ENABLE_CHECKING
)
1297 const unsigned char *o
;
1298 unsigned long omask
= op
->mask
;
1300 /* The mask had better not trim off opcode bits. */
1301 if ((op
->opcode
& omask
) != op
->opcode
)
1303 as_bad (_("mask trims opcode bits for %s"),
1308 /* The operands must not overlap the opcode or each other. */
1309 for (o
= op
->operands
; *o
; ++o
)
1310 if (*o
>= num_powerpc_operands
)
1312 as_bad (_("operand index error for %s"),
1318 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1319 if (operand
->shift
>= 0)
1321 unsigned long mask
= operand
->bitm
<< operand
->shift
;
1324 as_bad (_("operand %d overlap in %s"),
1325 (int) (o
- op
->operands
), op
->name
);
1333 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1334 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1335 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1336 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1337 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1338 /* Certain instructions (eg: extsw) do not exist in the
1339 32-bit BookE instruction set, but they do exist in the
1340 64-bit BookE instruction set, and other PPC instruction
1341 sets. Check to see if the opcode has the BOOKE64 flag set.
1342 If it does make sure that the target CPU is not the BookE32. */
1343 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1344 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1345 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1346 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1347 || ((op
->flags
& PPC_OPCODE_POWER4
)
1348 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1349 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1350 || ((op
->flags
& PPC_OPCODE_POWER5
)
1351 == (ppc_cpu
& PPC_OPCODE_POWER5
)))
1352 && ((op
->flags
& PPC_OPCODE_POWER6
) == 0
1353 || ((op
->flags
& PPC_OPCODE_POWER6
)
1354 == (ppc_cpu
& PPC_OPCODE_POWER6
))))
1358 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1361 /* Ignore Power duplicates for -m601. */
1362 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1363 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1366 as_bad (_("duplicate instruction %s"),
1373 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1374 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1375 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1377 /* Insert the macros into a hash table. */
1378 ppc_macro_hash
= hash_new ();
1380 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1381 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1383 if ((macro
->flags
& ppc_cpu
) != 0)
1387 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1388 if (retval
!= (const char *) NULL
)
1390 as_bad (_("duplicate macro %s"), macro
->name
);
1400 /* This function is called when the assembler starts up. It is called
1401 after the options have been parsed and the output file has been
1409 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1412 /* Set the ELF flags if desired. */
1413 if (ppc_flags
&& !msolaris
)
1414 bfd_set_private_flags (stdoutput
, ppc_flags
);
1417 ppc_setup_opcodes ();
1419 /* Tell the main code what the endianness is if it is not overridden
1421 if (!set_target_endian
)
1423 set_target_endian
= 1;
1424 target_big_endian
= PPC_BIG_ENDIAN
;
1428 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1430 /* Create dummy symbols to serve as initial csects. This forces the
1431 text csects to precede the data csects. These symbols will not
1433 ppc_text_csects
= symbol_make ("dummy\001");
1434 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1435 ppc_data_csects
= symbol_make ("dummy\001");
1436 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1441 ppc_current_section
= text_section
;
1442 ppc_previous_section
= 0;
1451 if (ppc_apuinfo_list
== NULL
)
1454 /* Ok, so write the section info out. We have this layout:
1458 0 8 length of "APUinfo\0"
1459 4 (n*4) number of APU's (4 bytes each)
1462 20 APU#1 first APU's info
1463 24 APU#2 second APU's info
1468 asection
*seg
= now_seg
;
1469 subsegT subseg
= now_subseg
;
1470 asection
*apuinfo_secp
= (asection
*) NULL
;
1473 /* Create the .PPC.EMB.apuinfo section. */
1474 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1475 bfd_set_section_flags (stdoutput
,
1477 SEC_HAS_CONTENTS
| SEC_READONLY
);
1480 md_number_to_chars (p
, (valueT
) 8, 4);
1483 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1486 md_number_to_chars (p
, (valueT
) 2, 4);
1489 strcpy (p
, "APUinfo");
1491 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1494 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1497 frag_align (2, 0, 0);
1499 /* We probably can't restore the current segment, for there likely
1502 subseg_set (seg
, subseg
);
1507 /* Insert an operand value into an instruction. */
1509 static unsigned long
1510 ppc_insert_operand (unsigned long insn
,
1511 const struct powerpc_operand
*operand
,
1516 long min
, max
, right
;
1518 max
= operand
->bitm
;
1522 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1524 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1525 max
= (max
>> 1) & -right
;
1526 min
= ~max
& -right
;
1529 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1532 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1541 /* Some people write constants with the sign extension done by
1542 hand but only up to 32 bits. This shouldn't really be valid,
1543 but, to permit this code to assemble on a 64-bit host, we
1544 sign extend the 32-bit value to 64 bits if so doing makes the
1547 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1548 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1549 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1550 val
= val
- 0x80000000 - 0x80000000;
1552 /* Similarly, people write expressions like ~(1<<15), and expect
1553 this to be OK for a 32-bit unsigned value. */
1555 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1556 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1557 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1558 val
= val
+ 0x80000000 + 0x80000000;
1562 || (val
& (right
- 1)) != 0)
1563 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1566 if (operand
->insert
)
1571 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1572 if (errmsg
!= (const char *) NULL
)
1573 as_bad_where (file
, line
, errmsg
);
1576 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1583 /* Parse @got, etc. and return the desired relocation. */
1584 static bfd_reloc_code_real_type
1585 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1589 unsigned int length
: 8;
1590 unsigned int valid32
: 1;
1591 unsigned int valid64
: 1;
1600 const struct map_bfd
*ptr
;
1602 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1603 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1604 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1606 static const struct map_bfd mapping
[] = {
1607 MAP ("l", BFD_RELOC_LO16
),
1608 MAP ("h", BFD_RELOC_HI16
),
1609 MAP ("ha", BFD_RELOC_HI16_S
),
1610 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1611 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1612 MAP ("got", BFD_RELOC_16_GOTOFF
),
1613 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1614 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1615 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1616 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1617 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1618 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1619 MAP ("copy", BFD_RELOC_PPC_COPY
),
1620 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1621 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1622 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1623 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1624 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1625 MAP ("tls", BFD_RELOC_PPC_TLS
),
1626 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1627 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1628 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1629 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1630 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1631 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1632 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1633 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1634 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1635 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1636 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1637 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1638 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1639 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1640 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1641 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1642 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1643 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1644 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1645 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1646 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1647 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1648 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1649 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1650 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1651 MAP32 ("fixup", BFD_RELOC_CTOR
),
1652 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1653 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1654 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1655 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1656 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1657 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1658 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1659 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1660 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1661 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1662 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1663 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1664 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1665 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1666 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1667 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1668 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1669 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1670 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1671 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1672 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1673 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1674 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1675 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1676 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1677 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1678 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1679 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1680 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1681 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1682 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1683 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1684 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1685 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1686 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1687 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1688 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1689 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1690 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1691 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1692 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1696 return BFD_RELOC_UNUSED
;
1698 for (ch
= *str
, str2
= ident
;
1699 (str2
< ident
+ sizeof (ident
) - 1
1700 && (ISALNUM (ch
) || ch
== '@'));
1703 *str2
++ = TOLOWER (ch
);
1710 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1711 if (ch
== ptr
->string
[0]
1712 && len
== ptr
->length
1713 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1714 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1716 int reloc
= ptr
->reloc
;
1719 if (exp_p
->X_add_number
!= 0
1720 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1721 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1722 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1723 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1724 as_warn (_("identifier+constant@got means identifier@got+constant"));
1726 /* Now check for identifier@suffix+constant. */
1727 if (*str
== '-' || *str
== '+')
1729 char *orig_line
= input_line_pointer
;
1730 expressionS new_exp
;
1732 input_line_pointer
= str
;
1733 expression (&new_exp
);
1734 if (new_exp
.X_op
== O_constant
)
1736 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1737 str
= input_line_pointer
;
1740 if (&input_line_pointer
!= str_p
)
1741 input_line_pointer
= orig_line
;
1745 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1746 && exp_p
->X_op
== O_symbol
1747 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1749 /* Change the symbol so that the dummy .TOC. symbol can be
1750 omitted from the object file. */
1751 exp_p
->X_add_symbol
= &abs_symbol
;
1754 return (bfd_reloc_code_real_type
) reloc
;
1757 return BFD_RELOC_UNUSED
;
1760 /* Like normal .long/.short/.word, except support @got, etc.
1761 Clobbers input_line_pointer, checks end-of-line. */
1763 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1766 bfd_reloc_code_real_type reloc
;
1768 if (is_it_end_of_statement ())
1770 demand_empty_rest_of_line ();
1777 if (exp
.X_op
== O_symbol
1778 && *input_line_pointer
== '@'
1779 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1780 &exp
)) != BFD_RELOC_UNUSED
)
1782 reloc_howto_type
*reloc_howto
;
1785 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1786 size
= bfd_get_reloc_size (reloc_howto
);
1790 as_bad (_("%s relocations do not fit in %d bytes\n"),
1791 reloc_howto
->name
, nbytes
);
1798 p
= frag_more (nbytes
);
1800 if (target_big_endian
)
1801 offset
= nbytes
- size
;
1802 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1807 emit_expr (&exp
, (unsigned int) nbytes
);
1809 while (*input_line_pointer
++ == ',');
1811 /* Put terminator back into stream. */
1812 input_line_pointer
--;
1813 demand_empty_rest_of_line ();
1816 /* Solaris pseduo op to change to the .rodata section. */
1818 ppc_elf_rdata (int xxx
)
1820 char *save_line
= input_line_pointer
;
1821 static char section
[] = ".rodata\n";
1823 /* Just pretend this is .section .rodata */
1824 input_line_pointer
= section
;
1825 obj_elf_section (xxx
);
1827 input_line_pointer
= save_line
;
1830 /* Pseudo op to make file scope bss items. */
1832 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
1845 name
= input_line_pointer
;
1846 c
= get_symbol_end ();
1848 /* just after name is now '\0'. */
1849 p
= input_line_pointer
;
1852 if (*input_line_pointer
!= ',')
1854 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1855 ignore_rest_of_line ();
1859 input_line_pointer
++; /* skip ',' */
1860 if ((size
= get_absolute_expression ()) < 0)
1862 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1863 ignore_rest_of_line ();
1867 /* The third argument to .lcomm is the alignment. */
1868 if (*input_line_pointer
!= ',')
1872 ++input_line_pointer
;
1873 align
= get_absolute_expression ();
1876 as_warn (_("ignoring bad alignment"));
1882 symbolP
= symbol_find_or_make (name
);
1885 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1887 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1888 S_GET_NAME (symbolP
));
1889 ignore_rest_of_line ();
1893 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1895 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1896 S_GET_NAME (symbolP
),
1897 (long) S_GET_VALUE (symbolP
),
1900 ignore_rest_of_line ();
1906 old_subsec
= now_subseg
;
1909 /* Convert to a power of 2 alignment. */
1910 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1913 as_bad (_("Common alignment not a power of 2"));
1914 ignore_rest_of_line ();
1921 record_alignment (bss_section
, align2
);
1922 subseg_set (bss_section
, 0);
1924 frag_align (align2
, 0, 0);
1925 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1926 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1927 symbol_set_frag (symbolP
, frag_now
);
1928 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1931 S_SET_SIZE (symbolP
, size
);
1932 S_SET_SEGMENT (symbolP
, bss_section
);
1933 subseg_set (old_sec
, old_subsec
);
1934 demand_empty_rest_of_line ();
1937 /* Validate any relocations emitted for -mrelocatable, possibly adding
1938 fixups for word relocations in writable segments, so we can adjust
1941 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
1943 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1952 case SHLIB_MRELOCATABLE
:
1953 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1954 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1955 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1956 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1957 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1958 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1959 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1960 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1961 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1962 && (seg
->flags
& SEC_LOAD
) != 0
1963 && strcmp (segment_name (seg
), ".got2") != 0
1964 && strcmp (segment_name (seg
), ".dtors") != 0
1965 && strcmp (segment_name (seg
), ".ctors") != 0
1966 && strcmp (segment_name (seg
), ".fixup") != 0
1967 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1968 && strcmp (segment_name (seg
), ".eh_frame") != 0
1969 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1971 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1972 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1974 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1975 _("Relocation cannot be done when using -mrelocatable"));
1982 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1983 function descriptor sym if the corresponding code sym is used. */
1986 ppc_frob_file_before_adjust (void)
1994 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2001 name
= S_GET_NAME (symp
);
2005 if (! S_IS_WEAK (symp
)
2006 || S_IS_DEFINED (symp
))
2009 len
= strlen (name
) + 1;
2010 dotname
= xmalloc (len
+ 1);
2012 memcpy (dotname
+ 1, name
, len
);
2013 dotsym
= symbol_find_noref (dotname
, 1);
2015 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2016 || symbol_used_in_reloc_p (dotsym
)))
2017 symbol_mark_used (symp
);
2021 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2023 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2024 as_warn (_("TOC section size exceeds 64k"));
2026 /* Don't emit .TOC. symbol. */
2027 symp
= symbol_find (".TOC.");
2029 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2031 #endif /* OBJ_ELF */
2036 * Summary of parse_toc_entry.
2038 * in: Input_line_pointer points to the '[' in one of:
2040 * [toc] [tocv] [toc32] [toc64]
2042 * Anything else is an error of one kind or another.
2045 * return value: success or failure
2046 * toc_kind: kind of toc reference
2047 * input_line_pointer:
2048 * success: first char after the ']'
2049 * failure: unchanged
2053 * [toc] - rv == success, toc_kind = default_toc
2054 * [tocv] - rv == success, toc_kind = data_in_toc
2055 * [toc32] - rv == success, toc_kind = must_be_32
2056 * [toc64] - rv == success, toc_kind = must_be_64
2060 enum toc_size_qualifier
2062 default_toc
, /* The toc cell constructed should be the system default size */
2063 data_in_toc
, /* This is a direct reference to a toc cell */
2064 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2065 must_be_64
/* The toc cell constructed must be 64 bits wide */
2069 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2074 enum toc_size_qualifier t
;
2076 /* Save the input_line_pointer. */
2077 start
= input_line_pointer
;
2079 /* Skip over the '[' , and whitespace. */
2080 ++input_line_pointer
;
2083 /* Find the spelling of the operand. */
2084 toc_spec
= input_line_pointer
;
2085 c
= get_symbol_end ();
2087 if (strcmp (toc_spec
, "toc") == 0)
2091 else if (strcmp (toc_spec
, "tocv") == 0)
2095 else if (strcmp (toc_spec
, "toc32") == 0)
2099 else if (strcmp (toc_spec
, "toc64") == 0)
2105 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2106 *input_line_pointer
= c
;
2107 input_line_pointer
= start
;
2111 /* Now find the ']'. */
2112 *input_line_pointer
= c
;
2114 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2115 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2119 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2120 input_line_pointer
= start
;
2131 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2133 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2137 /* Check we don't already exist. */
2138 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2139 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2142 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2144 if (ppc_apuinfo_num_alloc
== 0)
2146 ppc_apuinfo_num_alloc
= 4;
2147 ppc_apuinfo_list
= (unsigned long *)
2148 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2152 ppc_apuinfo_num_alloc
+= 4;
2153 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2154 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2157 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2163 /* We need to keep a list of fixups. We can't simply generate them as
2164 we go, because that would require us to first create the frag, and
2165 that would screw up references to ``.''. */
2171 bfd_reloc_code_real_type reloc
;
2174 #define MAX_INSN_FIXUPS (5)
2176 /* This routine is called for each instruction to be assembled. */
2179 md_assemble (char *str
)
2182 const struct powerpc_opcode
*opcode
;
2184 const unsigned char *opindex_ptr
;
2188 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2194 bfd_reloc_code_real_type reloc
;
2197 /* Get the opcode. */
2198 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2203 /* Look up the opcode in the hash table. */
2204 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2205 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2207 const struct powerpc_macro
*macro
;
2209 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2210 if (macro
== (const struct powerpc_macro
*) NULL
)
2211 as_bad (_("Unrecognized opcode: `%s'"), str
);
2213 ppc_macro (s
, macro
);
2218 insn
= opcode
->opcode
;
2221 while (ISSPACE (*str
))
2224 /* PowerPC operands are just expressions. The only real issue is
2225 that a few operand types are optional. All cases which might use
2226 an optional operand separate the operands only with commas (in some
2227 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2228 have optional operands). Most instructions with optional operands
2229 have only one. Those that have more than one optional operand can
2230 take either all their operands or none. So, before we start seriously
2231 parsing the operands, we check to see if we have optional operands,
2232 and if we do, we count the number of commas to see which operands
2233 have been omitted. */
2235 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2237 const struct powerpc_operand
*operand
;
2239 operand
= &powerpc_operands
[*opindex_ptr
];
2240 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2242 unsigned int opcount
;
2243 unsigned int num_operands_expected
;
2246 /* There is an optional operand. Count the number of
2247 commas in the input line. */
2254 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2261 /* Compute the number of expected operands.
2262 Do not count fake operands. */
2263 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2264 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2265 ++ num_operands_expected
;
2267 /* If there are fewer operands in the line then are called
2268 for by the instruction, we want to skip the optional
2270 if (opcount
< num_operands_expected
)
2277 /* Gather the operands. */
2281 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2283 const struct powerpc_operand
*operand
;
2289 if (next_opindex
== 0)
2290 operand
= &powerpc_operands
[*opindex_ptr
];
2293 operand
= &powerpc_operands
[next_opindex
];
2298 /* If this is a fake operand, then we do not expect anything
2300 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2302 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2303 if (errmsg
!= (const char *) NULL
)
2308 /* If this is an optional operand, and we are skipping it, just
2310 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2313 if (operand
->insert
)
2315 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2316 if (errmsg
!= (const char *) NULL
)
2319 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2320 next_opindex
= *opindex_ptr
+ 1;
2324 /* Gather the operand. */
2325 hold
= input_line_pointer
;
2326 input_line_pointer
= str
;
2329 if (*input_line_pointer
== '[')
2331 /* We are expecting something like the second argument here:
2333 * lwz r4,[toc].GS.0.static_int(rtoc)
2334 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2335 * The argument following the `]' must be a symbol name, and the
2336 * register must be the toc register: 'rtoc' or '2'
2338 * The effect is to 0 as the displacement field
2339 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2340 * the appropriate variation) reloc against it based on the symbol.
2341 * The linker will build the toc, and insert the resolved toc offset.
2344 * o The size of the toc entry is currently assumed to be
2345 * 32 bits. This should not be assumed to be a hard coded
2347 * o In an effort to cope with a change from 32 to 64 bits,
2348 * there are also toc entries that are specified to be
2349 * either 32 or 64 bits:
2350 * lwz r4,[toc32].GS.0.static_int(rtoc)
2351 * lwz r4,[toc64].GS.0.static_int(rtoc)
2352 * These demand toc entries of the specified size, and the
2353 * instruction probably requires it.
2357 enum toc_size_qualifier toc_kind
;
2358 bfd_reloc_code_real_type toc_reloc
;
2360 /* Go parse off the [tocXX] part. */
2361 valid_toc
= parse_toc_entry (&toc_kind
);
2365 /* Note: message has already been issued.
2366 FIXME: what sort of recovery should we do?
2367 demand_rest_of_line (); return; ? */
2370 /* Now get the symbol following the ']'. */
2376 /* In this case, we may not have seen the symbol yet,
2377 since it is allowed to appear on a .extern or .globl
2378 or just be a label in the .data section. */
2379 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2382 /* 1. The symbol must be defined and either in the toc
2383 section, or a global.
2384 2. The reloc generated must have the TOCDEFN flag set
2385 in upper bit mess of the reloc type.
2386 FIXME: It's a little confusing what the tocv
2387 qualifier can be used for. At the very least, I've
2388 seen three uses, only one of which I'm sure I can
2390 if (ex
.X_op
== O_symbol
)
2392 assert (ex
.X_add_symbol
!= NULL
);
2393 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2396 as_bad (_("[tocv] symbol is not a toc symbol"));
2400 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2403 /* FIXME: these next two specifically specify 32/64 bit
2404 toc entries. We don't support them today. Is this
2405 the right way to say that? */
2406 toc_reloc
= BFD_RELOC_UNUSED
;
2407 as_bad (_("Unimplemented toc32 expression modifier"));
2410 /* FIXME: see above. */
2411 toc_reloc
= BFD_RELOC_UNUSED
;
2412 as_bad (_("Unimplemented toc64 expression modifier"));
2416 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2422 /* We need to generate a fixup for this expression. */
2423 if (fc
>= MAX_INSN_FIXUPS
)
2424 as_fatal (_("too many fixups"));
2426 fixups
[fc
].reloc
= toc_reloc
;
2427 fixups
[fc
].exp
= ex
;
2428 fixups
[fc
].opindex
= *opindex_ptr
;
2431 /* Ok. We've set up the fixup for the instruction. Now make it
2432 look like the constant 0 was found here. */
2434 ex
.X_op
= O_constant
;
2435 ex
.X_add_number
= 0;
2436 ex
.X_add_symbol
= NULL
;
2437 ex
.X_op_symbol
= NULL
;
2443 if (! register_name (&ex
))
2445 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2452 str
= input_line_pointer
;
2453 input_line_pointer
= hold
;
2455 if (ex
.X_op
== O_illegal
)
2456 as_bad (_("illegal operand"));
2457 else if (ex
.X_op
== O_absent
)
2458 as_bad (_("missing operand"));
2459 else if (ex
.X_op
== O_register
)
2461 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2464 else if (ex
.X_op
== O_constant
)
2467 /* Allow @HA, @L, @H on constants. */
2468 char *orig_str
= str
;
2470 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2477 case BFD_RELOC_LO16
:
2478 /* X_unsigned is the default, so if the user has done
2479 something which cleared it, we always produce a
2481 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2482 ex
.X_add_number
&= 0xffff;
2484 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2487 case BFD_RELOC_HI16
:
2488 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2489 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2491 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2494 case BFD_RELOC_HI16_S
:
2495 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2496 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2498 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2501 case BFD_RELOC_PPC64_HIGHER
:
2502 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2503 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2505 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2508 case BFD_RELOC_PPC64_HIGHER_S
:
2509 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2510 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2512 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2515 case BFD_RELOC_PPC64_HIGHEST
:
2516 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2517 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2519 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2522 case BFD_RELOC_PPC64_HIGHEST_S
:
2523 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2524 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2526 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2529 #endif /* OBJ_ELF */
2530 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2534 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2536 /* Some TLS tweaks. */
2541 case BFD_RELOC_PPC_TLS
:
2542 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2545 /* We'll only use the 32 (or 64) bit form of these relocations
2546 in constants. Instructions get the 16 bit form. */
2547 case BFD_RELOC_PPC_DTPREL
:
2548 reloc
= BFD_RELOC_PPC_DTPREL16
;
2550 case BFD_RELOC_PPC_TPREL
:
2551 reloc
= BFD_RELOC_PPC_TPREL16
;
2555 /* For the absolute forms of branches, convert the PC
2556 relative form back into the absolute. */
2557 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2561 case BFD_RELOC_PPC_B26
:
2562 reloc
= BFD_RELOC_PPC_BA26
;
2564 case BFD_RELOC_PPC_B16
:
2565 reloc
= BFD_RELOC_PPC_BA16
;
2567 case BFD_RELOC_PPC_B16_BRTAKEN
:
2568 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2570 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2571 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2579 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2584 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2586 case BFD_RELOC_LO16
:
2587 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2589 case BFD_RELOC_16_GOTOFF
:
2590 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2592 case BFD_RELOC_LO16_GOTOFF
:
2593 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2595 case BFD_RELOC_LO16_PLTOFF
:
2596 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2598 case BFD_RELOC_16_BASEREL
:
2599 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2601 case BFD_RELOC_LO16_BASEREL
:
2602 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2604 case BFD_RELOC_PPC_TOC16
:
2605 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2607 case BFD_RELOC_PPC64_TOC16_LO
:
2608 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2610 case BFD_RELOC_PPC64_PLTGOT16
:
2611 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2613 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2614 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2616 case BFD_RELOC_PPC_DTPREL16
:
2617 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2619 case BFD_RELOC_PPC_DTPREL16_LO
:
2620 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2622 case BFD_RELOC_PPC_TPREL16
:
2623 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2625 case BFD_RELOC_PPC_TPREL16_LO
:
2626 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2628 case BFD_RELOC_PPC_GOT_DTPREL16
:
2629 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2630 case BFD_RELOC_PPC_GOT_TPREL16
:
2631 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2634 as_bad (_("unsupported relocation for DS offset field"));
2639 /* We need to generate a fixup for this expression. */
2640 if (fc
>= MAX_INSN_FIXUPS
)
2641 as_fatal (_("too many fixups"));
2642 fixups
[fc
].exp
= ex
;
2643 fixups
[fc
].opindex
= 0;
2644 fixups
[fc
].reloc
= reloc
;
2647 #endif /* OBJ_ELF */
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
= *opindex_ptr
;
2656 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2664 /* If expecting more operands, then we want to see "),". */
2665 if (*str
== endc
&& opindex_ptr
[1] != 0)
2669 while (ISSPACE (*str
));
2673 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2681 /* The call to expression should have advanced str past any
2684 && (endc
!= ',' || *str
!= '\0'))
2686 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2694 while (ISSPACE (*str
))
2698 as_bad (_("junk at end of line: `%s'"), str
);
2701 /* Do we need/want a APUinfo section? */
2702 if (ppc_cpu
& (PPC_OPCODE_SPE
2703 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2704 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2705 | PPC_OPCODE_RFMCI
))
2707 /* These are all version "1". */
2708 if (opcode
->flags
& PPC_OPCODE_SPE
)
2709 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2710 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2711 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2712 if (opcode
->flags
& PPC_OPCODE_EFS
)
2713 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2714 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2715 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2716 if (opcode
->flags
& PPC_OPCODE_PMR
)
2717 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2718 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2719 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2720 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2721 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2725 /* Write out the instruction. */
2727 addr_mod
= frag_now_fix () & 3;
2728 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2729 as_bad (_("instruction address is not a multiple of 4"));
2730 frag_now
->insn_addr
= addr_mod
;
2731 frag_now
->has_code
= 1;
2732 md_number_to_chars (f
, insn
, 4);
2735 dwarf2_emit_insn (4);
2738 /* Create any fixups. At this point we do not use a
2739 bfd_reloc_code_real_type, but instead just use the
2740 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2741 handle fixups for any operand type, although that is admittedly
2742 not a very exciting feature. We pick a BFD reloc type in
2744 for (i
= 0; i
< fc
; i
++)
2746 const struct powerpc_operand
*operand
;
2748 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2749 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2751 reloc_howto_type
*reloc_howto
;
2756 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2760 size
= bfd_get_reloc_size (reloc_howto
);
2761 offset
= target_big_endian
? (4 - size
) : 0;
2763 if (size
< 1 || size
> 4)
2766 fixP
= fix_new_exp (frag_now
,
2767 f
- frag_now
->fr_literal
+ offset
,
2770 reloc_howto
->pc_relative
,
2773 /* Turn off complaints that the addend is too large for things like
2775 switch (fixups
[i
].reloc
)
2777 case BFD_RELOC_16_GOTOFF
:
2778 case BFD_RELOC_PPC_TOC16
:
2779 case BFD_RELOC_LO16
:
2780 case BFD_RELOC_HI16
:
2781 case BFD_RELOC_HI16_S
:
2783 case BFD_RELOC_PPC64_HIGHER
:
2784 case BFD_RELOC_PPC64_HIGHER_S
:
2785 case BFD_RELOC_PPC64_HIGHEST
:
2786 case BFD_RELOC_PPC64_HIGHEST_S
:
2788 fixP
->fx_no_overflow
= 1;
2795 fix_new_exp (frag_now
,
2796 f
- frag_now
->fr_literal
,
2799 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2800 ((bfd_reloc_code_real_type
)
2801 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2805 /* Handle a macro. Gather all the operands, transform them as
2806 described by the macro, and call md_assemble recursively. All the
2807 operands are separated by commas; we don't accept parentheses
2808 around operands here. */
2811 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
2822 /* Gather the users operands into the operands array. */
2827 if (count
>= sizeof operands
/ sizeof operands
[0])
2829 operands
[count
++] = s
;
2830 s
= strchr (s
, ',');
2831 if (s
== (char *) NULL
)
2836 if (count
!= macro
->operands
)
2838 as_bad (_("wrong number of operands"));
2842 /* Work out how large the string must be (the size is unbounded
2843 because it includes user input). */
2845 format
= macro
->format
;
2846 while (*format
!= '\0')
2855 arg
= strtol (format
+ 1, &send
, 10);
2856 know (send
!= format
&& arg
< count
);
2857 len
+= strlen (operands
[arg
]);
2862 /* Put the string together. */
2863 complete
= s
= (char *) alloca (len
+ 1);
2864 format
= macro
->format
;
2865 while (*format
!= '\0')
2871 arg
= strtol (format
+ 1, &send
, 10);
2872 strcpy (s
, operands
[arg
]);
2879 /* Assemble the constructed instruction. */
2880 md_assemble (complete
);
2884 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2887 ppc_section_letter (int letter
, char **ptr_msg
)
2892 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2897 ppc_section_word (char *str
, size_t len
)
2899 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2906 ppc_section_type (char *str
, size_t len
)
2908 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2915 ppc_section_flags (int flags
, int attr
, int type
)
2917 if (type
== SHT_ORDERED
)
2918 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2920 if (attr
& SHF_EXCLUDE
)
2921 flags
|= SEC_EXCLUDE
;
2925 #endif /* OBJ_ELF */
2928 /* Pseudo-op handling. */
2930 /* The .byte pseudo-op. This is similar to the normal .byte
2931 pseudo-op, but it can also take a single ASCII string. */
2934 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
2936 if (*input_line_pointer
!= '\"')
2942 /* Gather characters. A real double quote is doubled. Unusual
2943 characters are not permitted. */
2944 ++input_line_pointer
;
2949 c
= *input_line_pointer
++;
2953 if (*input_line_pointer
!= '\"')
2955 ++input_line_pointer
;
2958 FRAG_APPEND_1_CHAR (c
);
2961 demand_empty_rest_of_line ();
2966 /* XCOFF specific pseudo-op handling. */
2968 /* This is set if we are creating a .stabx symbol, since we don't want
2969 to handle symbol suffixes for such symbols. */
2970 static bfd_boolean ppc_stab_symbol
;
2972 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2973 symbols in the .bss segment as though they were local common
2974 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2975 aligns .comm and .lcomm to 4 bytes. */
2978 ppc_comm (int lcomm
)
2980 asection
*current_seg
= now_seg
;
2981 subsegT current_subseg
= now_subseg
;
2987 symbolS
*lcomm_sym
= NULL
;
2991 name
= input_line_pointer
;
2992 endc
= get_symbol_end ();
2993 end_name
= input_line_pointer
;
2996 if (*input_line_pointer
!= ',')
2998 as_bad (_("missing size"));
2999 ignore_rest_of_line ();
3002 ++input_line_pointer
;
3004 size
= get_absolute_expression ();
3007 as_bad (_("negative size"));
3008 ignore_rest_of_line ();
3014 /* The third argument to .comm is the alignment. */
3015 if (*input_line_pointer
!= ',')
3019 ++input_line_pointer
;
3020 align
= get_absolute_expression ();
3023 as_warn (_("ignoring bad alignment"));
3038 /* The third argument to .lcomm appears to be the real local
3039 common symbol to create. References to the symbol named in
3040 the first argument are turned into references to the third
3042 if (*input_line_pointer
!= ',')
3044 as_bad (_("missing real symbol name"));
3045 ignore_rest_of_line ();
3048 ++input_line_pointer
;
3050 lcomm_name
= input_line_pointer
;
3051 lcomm_endc
= get_symbol_end ();
3053 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3055 *input_line_pointer
= lcomm_endc
;
3059 sym
= symbol_find_or_make (name
);
3062 if (S_IS_DEFINED (sym
)
3063 || S_GET_VALUE (sym
) != 0)
3065 as_bad (_("attempt to redefine symbol"));
3066 ignore_rest_of_line ();
3070 record_alignment (bss_section
, align
);
3073 || ! S_IS_DEFINED (lcomm_sym
))
3082 S_SET_EXTERNAL (sym
);
3086 symbol_get_tc (lcomm_sym
)->output
= 1;
3087 def_sym
= lcomm_sym
;
3091 subseg_set (bss_section
, 1);
3092 frag_align (align
, 0, 0);
3094 symbol_set_frag (def_sym
, frag_now
);
3095 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3096 def_size
, (char *) NULL
);
3098 S_SET_SEGMENT (def_sym
, bss_section
);
3099 symbol_get_tc (def_sym
)->align
= align
;
3103 /* Align the size of lcomm_sym. */
3104 symbol_get_frag (lcomm_sym
)->fr_offset
=
3105 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3106 &~ ((1 << align
) - 1));
3107 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3108 symbol_get_tc (lcomm_sym
)->align
= align
;
3113 /* Make sym an offset from lcomm_sym. */
3114 S_SET_SEGMENT (sym
, bss_section
);
3115 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3116 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3117 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3120 subseg_set (current_seg
, current_subseg
);
3122 demand_empty_rest_of_line ();
3125 /* The .csect pseudo-op. This switches us into a different
3126 subsegment. The first argument is a symbol whose value is the
3127 start of the .csect. In COFF, csect symbols get special aux
3128 entries defined by the x_csect field of union internal_auxent. The
3129 optional second argument is the alignment (the default is 2). */
3132 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3139 name
= input_line_pointer
;
3140 endc
= get_symbol_end ();
3142 sym
= symbol_find_or_make (name
);
3144 *input_line_pointer
= endc
;
3146 if (S_GET_NAME (sym
)[0] == '\0')
3148 /* An unnamed csect is assumed to be [PR]. */
3149 symbol_get_tc (sym
)->class = XMC_PR
;
3153 if (*input_line_pointer
== ',')
3155 ++input_line_pointer
;
3156 align
= get_absolute_expression ();
3159 ppc_change_csect (sym
, align
);
3161 demand_empty_rest_of_line ();
3164 /* Change to a different csect. */
3167 ppc_change_csect (symbolS
*sym
, offsetT align
)
3169 if (S_IS_DEFINED (sym
))
3170 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3180 /* This is a new csect. We need to look at the symbol class to
3181 figure out whether it should go in the text section or the
3185 switch (symbol_get_tc (sym
)->class)
3195 S_SET_SEGMENT (sym
, text_section
);
3196 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3197 ++ppc_text_subsegment
;
3198 list_ptr
= &ppc_text_csects
;
3208 if (ppc_toc_csect
!= NULL
3209 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3210 == ppc_data_subsegment
))
3212 S_SET_SEGMENT (sym
, data_section
);
3213 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3214 ++ppc_data_subsegment
;
3215 list_ptr
= &ppc_data_csects
;
3221 /* We set the obstack chunk size to a small value before
3222 changing subsegments, so that we don't use a lot of memory
3223 space for what may be a small section. */
3224 hold_chunksize
= chunksize
;
3227 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3228 symbol_get_tc (sym
)->subseg
);
3230 chunksize
= hold_chunksize
;
3233 ppc_after_toc_frag
= frag_now
;
3235 record_alignment (sec
, align
);
3237 frag_align_code (align
, 0);
3239 frag_align (align
, 0, 0);
3241 symbol_set_frag (sym
, frag_now
);
3242 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3244 symbol_get_tc (sym
)->align
= align
;
3245 symbol_get_tc (sym
)->output
= 1;
3246 symbol_get_tc (sym
)->within
= sym
;
3248 for (list
= *list_ptr
;
3249 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3250 list
= symbol_get_tc (list
)->next
)
3252 symbol_get_tc (list
)->next
= sym
;
3254 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3255 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3259 ppc_current_csect
= sym
;
3262 /* This function handles the .text and .data pseudo-ops. These
3263 pseudo-ops aren't really used by XCOFF; we implement them for the
3264 convenience of people who aren't used to XCOFF. */
3267 ppc_section (int type
)
3274 else if (type
== 'd')
3279 sym
= symbol_find_or_make (name
);
3281 ppc_change_csect (sym
, 2);
3283 demand_empty_rest_of_line ();
3286 /* This function handles the .section pseudo-op. This is mostly to
3287 give an error, since XCOFF only supports .text, .data and .bss, but
3288 we do permit the user to name the text or data section. */
3291 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3294 const char *real_name
;
3298 user_name
= input_line_pointer
;
3299 c
= get_symbol_end ();
3301 if (strcmp (user_name
, ".text") == 0)
3302 real_name
= ".text[PR]";
3303 else if (strcmp (user_name
, ".data") == 0)
3304 real_name
= ".data[RW]";
3307 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3308 *input_line_pointer
= c
;
3309 ignore_rest_of_line ();
3313 *input_line_pointer
= c
;
3315 sym
= symbol_find_or_make (real_name
);
3317 ppc_change_csect (sym
, 2);
3319 demand_empty_rest_of_line ();
3322 /* The .extern pseudo-op. We create an undefined symbol. */
3325 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3330 name
= input_line_pointer
;
3331 endc
= get_symbol_end ();
3333 (void) symbol_find_or_make (name
);
3335 *input_line_pointer
= endc
;
3337 demand_empty_rest_of_line ();
3340 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3343 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3349 name
= input_line_pointer
;
3350 endc
= get_symbol_end ();
3352 sym
= symbol_find_or_make (name
);
3354 *input_line_pointer
= endc
;
3356 symbol_get_tc (sym
)->output
= 1;
3358 demand_empty_rest_of_line ();
3361 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3362 although I don't know why it bothers. */
3365 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
3372 name
= input_line_pointer
;
3373 endc
= get_symbol_end ();
3375 sym
= symbol_find_or_make (name
);
3377 *input_line_pointer
= endc
;
3379 if (*input_line_pointer
!= ',')
3381 as_bad (_("missing rename string"));
3382 ignore_rest_of_line ();
3385 ++input_line_pointer
;
3387 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3389 demand_empty_rest_of_line ();
3392 /* The .stabx pseudo-op. This is similar to a normal .stabs
3393 pseudo-op, but slightly different. A sample is
3394 .stabx "main:F-1",.main,142,0
3395 The first argument is the symbol name to create. The second is the
3396 value, and the third is the storage class. The fourth seems to be
3397 always zero, and I am assuming it is the type. */
3400 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
3407 name
= demand_copy_C_string (&len
);
3409 if (*input_line_pointer
!= ',')
3411 as_bad (_("missing value"));
3414 ++input_line_pointer
;
3416 ppc_stab_symbol
= TRUE
;
3417 sym
= symbol_make (name
);
3418 ppc_stab_symbol
= FALSE
;
3420 symbol_get_tc (sym
)->real_name
= name
;
3422 (void) expression (&exp
);
3429 as_bad (_("illegal .stabx expression; zero assumed"));
3430 exp
.X_add_number
= 0;
3433 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3434 symbol_set_frag (sym
, &zero_address_frag
);
3438 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3439 symbol_set_value_expression (sym
, &exp
);
3443 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3444 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3449 /* The value is some complex expression. This will probably
3450 fail at some later point, but this is probably the right
3451 thing to do here. */
3452 symbol_set_value_expression (sym
, &exp
);
3456 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3457 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3459 if (*input_line_pointer
!= ',')
3461 as_bad (_("missing class"));
3464 ++input_line_pointer
;
3466 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3468 if (*input_line_pointer
!= ',')
3470 as_bad (_("missing type"));
3473 ++input_line_pointer
;
3475 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3477 symbol_get_tc (sym
)->output
= 1;
3479 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3481 symbol_get_tc (sym
)->within
= ppc_current_block
;
3486 .stabx "z",arrays_,133,0
3489 .comm arrays_,13768,3
3491 resolve_symbol_value will copy the exp's "within" into sym's when the
3492 offset is 0. Since this seems to be corner case problem,
3493 only do the correction for storage class C_STSYM. A better solution
3494 would be to have the tc field updated in ppc_symbol_new_hook. */
3496 if (exp
.X_op
== O_symbol
)
3498 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3502 if (exp
.X_op
!= O_symbol
3503 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3504 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3505 ppc_frob_label (sym
);
3508 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3509 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3510 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3511 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3514 demand_empty_rest_of_line ();
3517 /* The .function pseudo-op. This takes several arguments. The first
3518 argument seems to be the external name of the symbol. The second
3519 argument seems to be the label for the start of the function. gcc
3520 uses the same name for both. I have no idea what the third and
3521 fourth arguments are meant to be. The optional fifth argument is
3522 an expression for the size of the function. In COFF this symbol
3523 gets an aux entry like that used for a csect. */
3526 ppc_function (int ignore ATTRIBUTE_UNUSED
)
3534 name
= input_line_pointer
;
3535 endc
= get_symbol_end ();
3537 /* Ignore any [PR] suffix. */
3538 name
= ppc_canonicalize_symbol_name (name
);
3539 s
= strchr (name
, '[');
3540 if (s
!= (char *) NULL
3541 && strcmp (s
+ 1, "PR]") == 0)
3544 ext_sym
= symbol_find_or_make (name
);
3546 *input_line_pointer
= endc
;
3548 if (*input_line_pointer
!= ',')
3550 as_bad (_("missing symbol name"));
3551 ignore_rest_of_line ();
3554 ++input_line_pointer
;
3556 name
= input_line_pointer
;
3557 endc
= get_symbol_end ();
3559 lab_sym
= symbol_find_or_make (name
);
3561 *input_line_pointer
= endc
;
3563 if (ext_sym
!= lab_sym
)
3567 exp
.X_op
= O_symbol
;
3568 exp
.X_add_symbol
= lab_sym
;
3569 exp
.X_op_symbol
= NULL
;
3570 exp
.X_add_number
= 0;
3572 symbol_set_value_expression (ext_sym
, &exp
);
3575 if (symbol_get_tc (ext_sym
)->class == -1)
3576 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3577 symbol_get_tc (ext_sym
)->output
= 1;
3579 if (*input_line_pointer
== ',')
3583 /* Ignore the third argument. */
3584 ++input_line_pointer
;
3585 expression (&ignore
);
3586 if (*input_line_pointer
== ',')
3588 /* Ignore the fourth argument. */
3589 ++input_line_pointer
;
3590 expression (&ignore
);
3591 if (*input_line_pointer
== ',')
3593 /* The fifth argument is the function size. */
3594 ++input_line_pointer
;
3595 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3598 &zero_address_frag
);
3599 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3604 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3605 SF_SET_FUNCTION (ext_sym
);
3606 SF_SET_PROCESS (ext_sym
);
3607 coff_add_linesym (ext_sym
);
3609 demand_empty_rest_of_line ();
3612 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3613 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3614 with the correct line number */
3616 static symbolS
*saved_bi_sym
= 0;
3619 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
3623 sym
= symbol_make (".bf");
3624 S_SET_SEGMENT (sym
, text_section
);
3625 symbol_set_frag (sym
, frag_now
);
3626 S_SET_VALUE (sym
, frag_now_fix ());
3627 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3629 coff_line_base
= get_absolute_expression ();
3631 S_SET_NUMBER_AUXILIARY (sym
, 1);
3632 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3634 /* Line number for bi. */
3637 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3642 symbol_get_tc (sym
)->output
= 1;
3644 ppc_frob_label (sym
);
3646 demand_empty_rest_of_line ();
3649 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3650 ".ef", except that the line number is absolute, not relative to the
3651 most recent ".bf" symbol. */
3654 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
3658 sym
= symbol_make (".ef");
3659 S_SET_SEGMENT (sym
, text_section
);
3660 symbol_set_frag (sym
, frag_now
);
3661 S_SET_VALUE (sym
, frag_now_fix ());
3662 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3663 S_SET_NUMBER_AUXILIARY (sym
, 1);
3664 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3665 symbol_get_tc (sym
)->output
= 1;
3667 ppc_frob_label (sym
);
3669 demand_empty_rest_of_line ();
3672 /* The .bi and .ei pseudo-ops. These take a string argument and
3673 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3674 the symbol list. The value of .bi will be know when the next .bf
3680 static symbolS
*last_biei
;
3687 name
= demand_copy_C_string (&len
);
3689 /* The value of these symbols is actually file offset. Here we set
3690 the value to the index into the line number entries. In
3691 ppc_frob_symbols we set the fix_line field, which will cause BFD
3692 to do the right thing. */
3694 sym
= symbol_make (name
);
3695 /* obj-coff.c currently only handles line numbers correctly in the
3697 S_SET_SEGMENT (sym
, text_section
);
3698 S_SET_VALUE (sym
, coff_n_line_nos
);
3699 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3701 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3702 symbol_get_tc (sym
)->output
= 1;
3710 for (look
= last_biei
? last_biei
: symbol_rootP
;
3711 (look
!= (symbolS
*) NULL
3712 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3713 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3714 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3715 look
= symbol_next (look
))
3717 if (look
!= (symbolS
*) NULL
)
3719 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3720 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3724 demand_empty_rest_of_line ();
3727 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3728 There is one argument, which is a csect symbol. The value of the
3729 .bs symbol is the index of this csect symbol. */
3732 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
3739 if (ppc_current_block
!= NULL
)
3740 as_bad (_("nested .bs blocks"));
3742 name
= input_line_pointer
;
3743 endc
= get_symbol_end ();
3745 csect
= symbol_find_or_make (name
);
3747 *input_line_pointer
= endc
;
3749 sym
= symbol_make (".bs");
3750 S_SET_SEGMENT (sym
, now_seg
);
3751 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3752 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3753 symbol_get_tc (sym
)->output
= 1;
3755 symbol_get_tc (sym
)->within
= csect
;
3757 ppc_frob_label (sym
);
3759 ppc_current_block
= sym
;
3761 demand_empty_rest_of_line ();
3764 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3767 ppc_es (int ignore ATTRIBUTE_UNUSED
)
3771 if (ppc_current_block
== NULL
)
3772 as_bad (_(".es without preceding .bs"));
3774 sym
= symbol_make (".es");
3775 S_SET_SEGMENT (sym
, now_seg
);
3776 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3777 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3778 symbol_get_tc (sym
)->output
= 1;
3780 ppc_frob_label (sym
);
3782 ppc_current_block
= NULL
;
3784 demand_empty_rest_of_line ();
3787 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3791 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
3795 sym
= symbol_make (".bb");
3796 S_SET_SEGMENT (sym
, text_section
);
3797 symbol_set_frag (sym
, frag_now
);
3798 S_SET_VALUE (sym
, frag_now_fix ());
3799 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3801 S_SET_NUMBER_AUXILIARY (sym
, 1);
3802 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3804 symbol_get_tc (sym
)->output
= 1;
3806 SF_SET_PROCESS (sym
);
3808 ppc_frob_label (sym
);
3810 demand_empty_rest_of_line ();
3813 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3817 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
3821 sym
= symbol_make (".eb");
3822 S_SET_SEGMENT (sym
, text_section
);
3823 symbol_set_frag (sym
, frag_now
);
3824 S_SET_VALUE (sym
, frag_now_fix ());
3825 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3826 S_SET_NUMBER_AUXILIARY (sym
, 1);
3827 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3828 symbol_get_tc (sym
)->output
= 1;
3830 SF_SET_PROCESS (sym
);
3832 ppc_frob_label (sym
);
3834 demand_empty_rest_of_line ();
3837 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3841 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
3847 name
= demand_copy_C_string (&len
);
3848 sym
= symbol_make (name
);
3849 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3850 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3851 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3852 S_SET_VALUE (sym
, 0);
3853 symbol_get_tc (sym
)->output
= 1;
3855 ppc_frob_label (sym
);
3857 demand_empty_rest_of_line ();
3860 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3863 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
3867 sym
= symbol_make (".ec");
3868 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3869 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3870 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3871 S_SET_VALUE (sym
, 0);
3872 symbol_get_tc (sym
)->output
= 1;
3874 ppc_frob_label (sym
);
3876 demand_empty_rest_of_line ();
3879 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3882 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
3884 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3885 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3892 subseg
= ppc_data_subsegment
;
3893 ++ppc_data_subsegment
;
3895 subseg_new (segment_name (data_section
), subseg
);
3896 ppc_toc_frag
= frag_now
;
3898 sym
= symbol_find_or_make ("TOC[TC0]");
3899 symbol_set_frag (sym
, frag_now
);
3900 S_SET_SEGMENT (sym
, data_section
);
3901 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3902 symbol_get_tc (sym
)->subseg
= subseg
;
3903 symbol_get_tc (sym
)->output
= 1;
3904 symbol_get_tc (sym
)->within
= sym
;
3906 ppc_toc_csect
= sym
;
3908 for (list
= ppc_data_csects
;
3909 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3910 list
= symbol_get_tc (list
)->next
)
3912 symbol_get_tc (list
)->next
= sym
;
3914 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3915 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3919 ppc_current_csect
= ppc_toc_csect
;
3921 demand_empty_rest_of_line ();
3924 /* The AIX assembler automatically aligns the operands of a .long or
3925 .short pseudo-op, and we want to be compatible. */
3928 ppc_xcoff_cons (int log_size
)
3930 frag_align (log_size
, 0, 0);
3931 record_alignment (now_seg
, log_size
);
3932 cons (1 << log_size
);
3936 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
3941 (void) expression (&exp
);
3943 if (exp
.X_op
!= O_constant
)
3945 as_bad (_("non-constant byte count"));
3949 byte_count
= exp
.X_add_number
;
3951 if (*input_line_pointer
!= ',')
3953 as_bad (_("missing value"));
3957 ++input_line_pointer
;
3961 #endif /* OBJ_XCOFF */
3962 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3964 /* The .tc pseudo-op. This is used when generating either XCOFF or
3965 ELF. This takes two or more arguments.
3967 When generating XCOFF output, the first argument is the name to
3968 give to this location in the toc; this will be a symbol with class
3969 TC. The rest of the arguments are N-byte values to actually put at
3970 this location in the TOC; often there is just one more argument, a
3971 relocatable symbol reference. The size of the value to store
3972 depends on target word size. A 32-bit target uses 4-byte values, a
3973 64-bit target uses 8-byte values.
3975 When not generating XCOFF output, the arguments are the same, but
3976 the first argument is simply ignored. */
3979 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
3983 /* Define the TOC symbol name. */
3989 if (ppc_toc_csect
== (symbolS
*) NULL
3990 || ppc_toc_csect
!= ppc_current_csect
)
3992 as_bad (_(".tc not in .toc section"));
3993 ignore_rest_of_line ();
3997 name
= input_line_pointer
;
3998 endc
= get_symbol_end ();
4000 sym
= symbol_find_or_make (name
);
4002 *input_line_pointer
= endc
;
4004 if (S_IS_DEFINED (sym
))
4008 label
= symbol_get_tc (ppc_current_csect
)->within
;
4009 if (symbol_get_tc (label
)->class != XMC_TC0
)
4011 as_bad (_(".tc with no label"));
4012 ignore_rest_of_line ();
4016 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4017 symbol_set_frag (label
, symbol_get_frag (sym
));
4018 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4020 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4021 ++input_line_pointer
;
4026 S_SET_SEGMENT (sym
, now_seg
);
4027 symbol_set_frag (sym
, frag_now
);
4028 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4029 symbol_get_tc (sym
)->class = XMC_TC
;
4030 symbol_get_tc (sym
)->output
= 1;
4032 ppc_frob_label (sym
);
4035 #endif /* OBJ_XCOFF */
4039 /* Skip the TOC symbol name. */
4040 while (is_part_of_name (*input_line_pointer
)
4041 || *input_line_pointer
== '['
4042 || *input_line_pointer
== ']'
4043 || *input_line_pointer
== '{'
4044 || *input_line_pointer
== '}')
4045 ++input_line_pointer
;
4047 /* Align to a four/eight byte boundary. */
4048 align
= ppc_obj64
? 3 : 2;
4049 frag_align (align
, 0, 0);
4050 record_alignment (now_seg
, align
);
4051 #endif /* OBJ_ELF */
4053 if (*input_line_pointer
!= ',')
4054 demand_empty_rest_of_line ();
4057 ++input_line_pointer
;
4058 cons (ppc_obj64
? 8 : 4);
4062 /* Pseudo-op .machine. */
4065 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4068 #define MAX_HISTORY 100
4069 static unsigned long *cpu_history
;
4070 static int curr_hist
;
4074 if (*input_line_pointer
== '"')
4077 cpu_string
= demand_copy_C_string (&len
);
4082 cpu_string
= input_line_pointer
;
4083 c
= get_symbol_end ();
4084 cpu_string
= xstrdup (cpu_string
);
4085 *input_line_pointer
= c
;
4088 if (cpu_string
!= NULL
)
4090 unsigned long old_cpu
= ppc_cpu
;
4093 for (p
= cpu_string
; *p
!= 0; p
++)
4096 if (strcmp (cpu_string
, "push") == 0)
4098 if (cpu_history
== NULL
)
4099 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4101 if (curr_hist
>= MAX_HISTORY
)
4102 as_bad (_(".machine stack overflow"));
4104 cpu_history
[curr_hist
++] = ppc_cpu
;
4106 else if (strcmp (cpu_string
, "pop") == 0)
4109 as_bad (_(".machine stack underflow"));
4111 ppc_cpu
= cpu_history
[--curr_hist
];
4113 else if (parse_cpu (cpu_string
))
4116 as_bad (_("invalid machine `%s'"), cpu_string
);
4118 if (ppc_cpu
!= old_cpu
)
4119 ppc_setup_opcodes ();
4122 demand_empty_rest_of_line ();
4125 /* See whether a symbol is in the TOC section. */
4128 ppc_is_toc_sym (symbolS
*sym
)
4131 return symbol_get_tc (sym
)->class == XMC_TC
;
4134 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4136 return strcmp (sname
, ".toc") == 0;
4138 return strcmp (sname
, ".got") == 0;
4141 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4145 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4147 /* Set the current section. */
4149 ppc_set_current_section (segT
new)
4151 ppc_previous_section
= ppc_current_section
;
4152 ppc_current_section
= new;
4155 /* pseudo-op: .previous
4156 behaviour: toggles the current section with the previous section.
4158 warnings: "No previous section" */
4161 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4165 if (ppc_previous_section
== NULL
)
4167 as_warn (_("No previous section to return to. Directive ignored."));
4171 subseg_set (ppc_previous_section
, 0);
4173 ppc_set_current_section (ppc_previous_section
);
4176 /* pseudo-op: .pdata
4177 behaviour: predefined read only data section
4181 initial: .section .pdata "adr3"
4182 a - don't know -- maybe a misprint
4183 d - initialized data
4185 3 - double word aligned (that would be 4 byte boundary)
4188 Tag index tables (also known as the function table) for exception
4189 handling, debugging, etc. */
4192 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4194 if (pdata_section
== 0)
4196 pdata_section
= subseg_new (".pdata", 0);
4198 bfd_set_section_flags (stdoutput
, pdata_section
,
4199 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4200 | SEC_READONLY
| SEC_DATA
));
4202 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4206 pdata_section
= subseg_new (".pdata", 0);
4208 ppc_set_current_section (pdata_section
);
4211 /* pseudo-op: .ydata
4212 behaviour: predefined read only data section
4216 initial: .section .ydata "drw3"
4217 a - don't know -- maybe a misprint
4218 d - initialized data
4220 3 - double word aligned (that would be 4 byte boundary)
4222 Tag tables (also known as the scope table) for exception handling,
4226 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4228 if (ydata_section
== 0)
4230 ydata_section
= subseg_new (".ydata", 0);
4231 bfd_set_section_flags (stdoutput
, ydata_section
,
4232 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4233 | SEC_READONLY
| SEC_DATA
));
4235 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4239 ydata_section
= subseg_new (".ydata", 0);
4241 ppc_set_current_section (ydata_section
);
4244 /* pseudo-op: .reldata
4245 behaviour: predefined read write data section
4246 double word aligned (4-byte)
4247 FIXME: relocation is applied to it
4248 FIXME: what's the difference between this and .data?
4251 initial: .section .reldata "drw3"
4252 d - initialized data
4255 3 - double word aligned (that would be 8 byte boundary)
4258 Like .data, but intended to hold data subject to relocation, such as
4259 function descriptors, etc. */
4262 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4264 if (reldata_section
== 0)
4266 reldata_section
= subseg_new (".reldata", 0);
4268 bfd_set_section_flags (stdoutput
, reldata_section
,
4269 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4272 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4276 reldata_section
= subseg_new (".reldata", 0);
4278 ppc_set_current_section (reldata_section
);
4281 /* pseudo-op: .rdata
4282 behaviour: predefined read only data section
4286 initial: .section .rdata "dr3"
4287 d - initialized data
4289 3 - double word aligned (that would be 4 byte boundary) */
4292 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
4294 if (rdata_section
== 0)
4296 rdata_section
= subseg_new (".rdata", 0);
4297 bfd_set_section_flags (stdoutput
, rdata_section
,
4298 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4299 | SEC_READONLY
| SEC_DATA
));
4301 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4305 rdata_section
= subseg_new (".rdata", 0);
4307 ppc_set_current_section (rdata_section
);
4310 /* pseudo-op: .ualong
4311 behaviour: much like .int, with the exception that no alignment is
4313 FIXME: test the alignment statement
4318 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
4324 /* pseudo-op: .znop <symbol name>
4325 behaviour: Issue a nop instruction
4326 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4327 the supplied symbol name.
4329 warnings: Missing symbol name */
4332 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
4335 const struct powerpc_opcode
*opcode
;
4346 /* Strip out the symbol name. */
4347 symbol_name
= input_line_pointer
;
4348 c
= get_symbol_end ();
4350 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4351 strcpy (name
, symbol_name
);
4353 sym
= symbol_find_or_make (name
);
4355 *input_line_pointer
= c
;
4359 /* Look up the opcode in the hash table. */
4360 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4362 /* Stick in the nop. */
4363 insn
= opcode
->opcode
;
4365 /* Write out the instruction. */
4367 md_number_to_chars (f
, insn
, 4);
4369 f
- frag_now
->fr_literal
,
4374 BFD_RELOC_16_GOT_PCREL
);
4384 ppc_pe_comm (int lcomm
)
4393 name
= input_line_pointer
;
4394 c
= get_symbol_end ();
4396 /* just after name is now '\0'. */
4397 p
= input_line_pointer
;
4400 if (*input_line_pointer
!= ',')
4402 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4403 ignore_rest_of_line ();
4407 input_line_pointer
++; /* skip ',' */
4408 if ((temp
= get_absolute_expression ()) < 0)
4410 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4411 ignore_rest_of_line ();
4417 /* The third argument to .comm is the alignment. */
4418 if (*input_line_pointer
!= ',')
4422 ++input_line_pointer
;
4423 align
= get_absolute_expression ();
4426 as_warn (_("ignoring bad alignment"));
4433 symbolP
= symbol_find_or_make (name
);
4436 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4438 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4439 S_GET_NAME (symbolP
));
4440 ignore_rest_of_line ();
4444 if (S_GET_VALUE (symbolP
))
4446 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4447 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4448 S_GET_NAME (symbolP
),
4449 (long) S_GET_VALUE (symbolP
),
4454 S_SET_VALUE (symbolP
, (valueT
) temp
);
4455 S_SET_EXTERNAL (symbolP
);
4456 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
4459 demand_empty_rest_of_line ();
4463 * implement the .section pseudo op:
4464 * .section name {, "flags"}
4466 * | +--- optional flags: 'b' for bss
4468 * +-- section name 'l' for lib
4472 * 'd' (apparently m88k for data)
4474 * But if the argument is not a quoted string, treat it as a
4475 * subsegment number.
4477 * FIXME: this is a copy of the section processing from obj-coff.c, with
4478 * additions/changes for the moto-pas assembler support. There are three
4481 * FIXME: I just noticed this. This doesn't work at all really. It it
4482 * setting bits that bfd probably neither understands or uses. The
4483 * correct approach (?) will have to incorporate extra fields attached
4484 * to the section to hold the system specific stuff. (krk)
4487 * 'a' - unknown - referred to in documentation, but no definition supplied
4488 * 'c' - section has code
4489 * 'd' - section has initialized data
4490 * 'u' - section has uninitialized data
4491 * 'i' - section contains directives (info)
4492 * 'n' - section can be discarded
4493 * 'R' - remove section at link time
4495 * Section Protection:
4496 * 'r' - section is readable
4497 * 'w' - section is writeable
4498 * 'x' - section is executable
4499 * 's' - section is sharable
4501 * Section Alignment:
4502 * '0' - align to byte boundary
4503 * '1' - align to halfword undary
4504 * '2' - align to word boundary
4505 * '3' - align to doubleword boundary
4506 * '4' - align to quadword boundary
4507 * '5' - align to 32 byte boundary
4508 * '6' - align to 64 byte boundary
4513 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
4515 /* Strip out the section name. */
4524 section_name
= input_line_pointer
;
4525 c
= get_symbol_end ();
4527 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4528 strcpy (name
, section_name
);
4530 *input_line_pointer
= c
;
4535 flags
= SEC_NO_FLAGS
;
4537 if (strcmp (name
, ".idata$2") == 0)
4541 else if (strcmp (name
, ".idata$3") == 0)
4545 else if (strcmp (name
, ".idata$4") == 0)
4549 else if (strcmp (name
, ".idata$5") == 0)
4553 else if (strcmp (name
, ".idata$6") == 0)
4558 /* Default alignment to 16 byte boundary. */
4561 if (*input_line_pointer
== ',')
4563 ++input_line_pointer
;
4565 if (*input_line_pointer
!= '"')
4566 exp
= get_absolute_expression ();
4569 ++input_line_pointer
;
4570 while (*input_line_pointer
!= '"'
4571 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4573 switch (*input_line_pointer
)
4575 /* Section Contents */
4576 case 'a': /* unknown */
4577 as_bad (_("Unsupported section attribute -- 'a'"));
4579 case 'c': /* code section */
4582 case 'd': /* section has initialized data */
4585 case 'u': /* section has uninitialized data */
4586 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4590 case 'i': /* section contains directives (info) */
4591 /* FIXME: This is IMAGE_SCN_LNK_INFO
4593 flags
|= SEC_HAS_CONTENTS
;
4595 case 'n': /* section can be discarded */
4598 case 'R': /* Remove section at link time */
4599 flags
|= SEC_NEVER_LOAD
;
4601 #if IFLICT_BRAIN_DAMAGE
4602 /* Section Protection */
4603 case 'r': /* section is readable */
4604 flags
|= IMAGE_SCN_MEM_READ
;
4606 case 'w': /* section is writeable */
4607 flags
|= IMAGE_SCN_MEM_WRITE
;
4609 case 'x': /* section is executable */
4610 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4612 case 's': /* section is sharable */
4613 flags
|= IMAGE_SCN_MEM_SHARED
;
4616 /* Section Alignment */
4617 case '0': /* align to byte boundary */
4618 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4621 case '1': /* align to halfword boundary */
4622 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4625 case '2': /* align to word boundary */
4626 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4629 case '3': /* align to doubleword boundary */
4630 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4633 case '4': /* align to quadword boundary */
4634 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4637 case '5': /* align to 32 byte boundary */
4638 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4641 case '6': /* align to 64 byte boundary */
4642 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4647 as_bad (_("unknown section attribute '%c'"),
4648 *input_line_pointer
);
4651 ++input_line_pointer
;
4653 if (*input_line_pointer
== '"')
4654 ++input_line_pointer
;
4658 sec
= subseg_new (name
, (subsegT
) exp
);
4660 ppc_set_current_section (sec
);
4662 if (flags
!= SEC_NO_FLAGS
)
4664 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4665 as_bad (_("error setting flags for \"%s\": %s"),
4666 bfd_section_name (stdoutput
, sec
),
4667 bfd_errmsg (bfd_get_error ()));
4670 bfd_set_section_alignment (stdoutput
, sec
, align
);
4674 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
4680 name
= input_line_pointer
;
4681 endc
= get_symbol_end ();
4683 ext_sym
= symbol_find_or_make (name
);
4685 *input_line_pointer
= endc
;
4687 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4688 SF_SET_FUNCTION (ext_sym
);
4689 SF_SET_PROCESS (ext_sym
);
4690 coff_add_linesym (ext_sym
);
4692 demand_empty_rest_of_line ();
4696 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
4698 if (tocdata_section
== 0)
4700 tocdata_section
= subseg_new (".tocd", 0);
4701 /* FIXME: section flags won't work. */
4702 bfd_set_section_flags (stdoutput
, tocdata_section
,
4703 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4704 | SEC_READONLY
| SEC_DATA
));
4706 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4710 rdata_section
= subseg_new (".tocd", 0);
4713 ppc_set_current_section (tocdata_section
);
4715 demand_empty_rest_of_line ();
4718 /* Don't adjust TOC relocs to use the section symbol. */
4721 ppc_pe_fix_adjustable (fixS
*fix
)
4723 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4730 /* XCOFF specific symbol and file handling. */
4732 /* Canonicalize the symbol name. We use the to force the suffix, if
4733 any, to use square brackets, and to be in upper case. */
4736 ppc_canonicalize_symbol_name (char *name
)
4740 if (ppc_stab_symbol
)
4743 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4757 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4760 if (*s
== '\0' || s
[1] != '\0')
4761 as_bad (_("bad symbol suffix"));
4769 /* Set the class of a symbol based on the suffix, if any. This is
4770 called whenever a new symbol is created. */
4773 ppc_symbol_new_hook (symbolS
*sym
)
4775 struct ppc_tc_sy
*tc
;
4778 tc
= symbol_get_tc (sym
);
4782 tc
->real_name
= NULL
;
4788 if (ppc_stab_symbol
)
4791 s
= strchr (S_GET_NAME (sym
), '[');
4792 if (s
== (const char *) NULL
)
4794 /* There is no suffix. */
4803 if (strcmp (s
, "BS]") == 0)
4807 if (strcmp (s
, "DB]") == 0)
4809 else if (strcmp (s
, "DS]") == 0)
4813 if (strcmp (s
, "GL]") == 0)
4817 if (strcmp (s
, "PR]") == 0)
4821 if (strcmp (s
, "RO]") == 0)
4823 else if (strcmp (s
, "RW]") == 0)
4827 if (strcmp (s
, "SV]") == 0)
4831 if (strcmp (s
, "TC]") == 0)
4833 else if (strcmp (s
, "TI]") == 0)
4835 else if (strcmp (s
, "TB]") == 0)
4837 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4838 tc
->class = XMC_TC0
;
4841 if (strcmp (s
, "UA]") == 0)
4843 else if (strcmp (s
, "UC]") == 0)
4847 if (strcmp (s
, "XO]") == 0)
4852 if (tc
->class == -1)
4853 as_bad (_("Unrecognized symbol suffix"));
4856 /* Set the class of a label based on where it is defined. This
4857 handles symbols without suffixes. Also, move the symbol so that it
4858 follows the csect symbol. */
4861 ppc_frob_label (symbolS
*sym
)
4863 if (ppc_current_csect
!= (symbolS
*) NULL
)
4865 if (symbol_get_tc (sym
)->class == -1)
4866 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4868 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4869 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4870 &symbol_rootP
, &symbol_lastP
);
4871 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4875 dwarf2_emit_label (sym
);
4879 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4880 seen. It tells ppc_adjust_symtab whether it needs to look through
4883 static bfd_boolean ppc_saw_abs
;
4885 /* Change the name of a symbol just before writing it out. Set the
4886 real name if the .rename pseudo-op was used. Otherwise, remove any
4887 class suffix. Return 1 if the symbol should not be included in the
4891 ppc_frob_symbol (symbolS
*sym
)
4893 static symbolS
*ppc_last_function
;
4894 static symbolS
*set_end
;
4896 /* Discard symbols that should not be included in the output symbol
4898 if (! symbol_used_in_reloc_p (sym
)
4899 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4900 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4901 && ! symbol_get_tc (sym
)->output
4902 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4905 /* This one will disappear anyway. Don't make a csect sym for it. */
4906 if (sym
== abs_section_sym
)
4909 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4910 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4916 name
= S_GET_NAME (sym
);
4917 s
= strchr (name
, '[');
4918 if (s
!= (char *) NULL
)
4924 snew
= xmalloc (len
+ 1);
4925 memcpy (snew
, name
, len
);
4928 S_SET_NAME (sym
, snew
);
4932 if (set_end
!= (symbolS
*) NULL
)
4934 SA_SET_SYM_ENDNDX (set_end
, sym
);
4938 if (SF_GET_FUNCTION (sym
))
4940 if (ppc_last_function
!= (symbolS
*) NULL
)
4941 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4942 ppc_last_function
= sym
;
4943 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4945 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4946 SA_SET_SYM_FSIZE (sym
,
4947 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4950 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4951 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4953 if (ppc_last_function
== (symbolS
*) NULL
)
4954 as_bad (_(".ef with no preceding .function"));
4957 set_end
= ppc_last_function
;
4958 ppc_last_function
= NULL
;
4960 /* We don't have a C_EFCN symbol, but we need to force the
4961 COFF backend to believe that it has seen one. */
4962 coff_last_function
= NULL
;
4966 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4967 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4968 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4969 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4970 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4971 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4972 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4973 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
4974 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
4975 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
4976 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
4978 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
4979 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
4982 union internal_auxent
*a
;
4984 /* Create a csect aux. */
4985 i
= S_GET_NUMBER_AUXILIARY (sym
);
4986 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
4987 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
4988 if (symbol_get_tc (sym
)->class == XMC_TC0
)
4990 /* This is the TOC table. */
4991 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
4992 a
->x_csect
.x_scnlen
.l
= 0;
4993 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
4995 else if (symbol_get_tc (sym
)->subseg
!= 0)
4997 /* This is a csect symbol. x_scnlen is the size of the
4999 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5000 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5001 S_GET_SEGMENT (sym
))
5002 - S_GET_VALUE (sym
));
5005 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5006 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5007 - S_GET_VALUE (sym
));
5009 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5011 else if (S_GET_SEGMENT (sym
) == bss_section
)
5013 /* This is a common symbol. */
5014 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5015 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5016 if (S_IS_EXTERNAL (sym
))
5017 symbol_get_tc (sym
)->class = XMC_RW
;
5019 symbol_get_tc (sym
)->class = XMC_BS
;
5021 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5023 /* This is an absolute symbol. The csect will be created by
5024 ppc_adjust_symtab. */
5026 a
->x_csect
.x_smtyp
= XTY_LD
;
5027 if (symbol_get_tc (sym
)->class == -1)
5028 symbol_get_tc (sym
)->class = XMC_XO
;
5030 else if (! S_IS_DEFINED (sym
))
5032 /* This is an external symbol. */
5033 a
->x_csect
.x_scnlen
.l
= 0;
5034 a
->x_csect
.x_smtyp
= XTY_ER
;
5036 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5040 /* This is a TOC definition. x_scnlen is the size of the
5042 next
= symbol_next (sym
);
5043 while (symbol_get_tc (next
)->class == XMC_TC0
)
5044 next
= symbol_next (next
);
5045 if (next
== (symbolS
*) NULL
5046 || symbol_get_tc (next
)->class != XMC_TC
)
5048 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5049 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5051 - S_GET_VALUE (sym
));
5053 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5054 - S_GET_VALUE (sym
));
5058 resolve_symbol_value (next
);
5059 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5060 - S_GET_VALUE (sym
));
5062 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5068 /* This is a normal symbol definition. x_scnlen is the
5069 symbol index of the containing csect. */
5070 if (S_GET_SEGMENT (sym
) == text_section
)
5071 csect
= ppc_text_csects
;
5072 else if (S_GET_SEGMENT (sym
) == data_section
)
5073 csect
= ppc_data_csects
;
5077 /* Skip the initial dummy symbol. */
5078 csect
= symbol_get_tc (csect
)->next
;
5080 if (csect
== (symbolS
*) NULL
)
5082 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5083 a
->x_csect
.x_scnlen
.l
= 0;
5087 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5089 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5090 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5091 > S_GET_VALUE (sym
))
5093 csect
= symbol_get_tc (csect
)->next
;
5096 a
->x_csect
.x_scnlen
.p
=
5097 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5098 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5101 a
->x_csect
.x_smtyp
= XTY_LD
;
5104 a
->x_csect
.x_parmhash
= 0;
5105 a
->x_csect
.x_snhash
= 0;
5106 if (symbol_get_tc (sym
)->class == -1)
5107 a
->x_csect
.x_smclas
= XMC_PR
;
5109 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5110 a
->x_csect
.x_stab
= 0;
5111 a
->x_csect
.x_snstab
= 0;
5113 /* Don't let the COFF backend resort these symbols. */
5114 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5116 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5118 /* We want the value to be the symbol index of the referenced
5119 csect symbol. BFD will do that for us if we set the right
5121 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5122 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5124 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5125 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5127 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5132 /* The value is the offset from the enclosing csect. */
5133 block
= symbol_get_tc (sym
)->within
;
5134 csect
= symbol_get_tc (block
)->within
;
5135 resolve_symbol_value (csect
);
5136 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5138 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5139 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5141 /* We want the value to be a file offset into the line numbers.
5142 BFD will do that for us if we set the right flags. We have
5143 already set the value correctly. */
5144 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5150 /* Adjust the symbol table. This creates csect symbols for all
5151 absolute symbols. */
5154 ppc_adjust_symtab (void)
5161 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5165 union internal_auxent
*a
;
5167 if (S_GET_SEGMENT (sym
) != absolute_section
)
5170 csect
= symbol_create (".abs[XO]", absolute_section
,
5171 S_GET_VALUE (sym
), &zero_address_frag
);
5172 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5173 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5174 i
= S_GET_NUMBER_AUXILIARY (csect
);
5175 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5176 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5177 a
->x_csect
.x_scnlen
.l
= 0;
5178 a
->x_csect
.x_smtyp
= XTY_SD
;
5179 a
->x_csect
.x_parmhash
= 0;
5180 a
->x_csect
.x_snhash
= 0;
5181 a
->x_csect
.x_smclas
= XMC_XO
;
5182 a
->x_csect
.x_stab
= 0;
5183 a
->x_csect
.x_snstab
= 0;
5185 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5187 i
= S_GET_NUMBER_AUXILIARY (sym
);
5188 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5189 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5190 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5193 ppc_saw_abs
= FALSE
;
5196 /* Set the VMA for a section. This is called on all the sections in
5200 ppc_frob_section (asection
*sec
)
5202 static bfd_vma vma
= 0;
5204 vma
= md_section_align (sec
, vma
);
5205 bfd_set_section_vma (stdoutput
, sec
, vma
);
5206 vma
+= bfd_section_size (stdoutput
, sec
);
5209 #endif /* OBJ_XCOFF */
5211 /* Turn a string in input_line_pointer into a floating point constant
5212 of type TYPE, and store the appropriate bytes in *LITP. The number
5213 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5214 returned, or NULL on OK. */
5217 md_atof (int type
, char *litp
, int *sizep
)
5220 LITTLENUM_TYPE words
[4];
5236 return _("bad call to md_atof");
5239 t
= atof_ieee (input_line_pointer
, type
, words
);
5241 input_line_pointer
= t
;
5245 if (target_big_endian
)
5247 for (i
= 0; i
< prec
; i
++)
5249 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5255 for (i
= prec
- 1; i
>= 0; i
--)
5257 md_number_to_chars (litp
, (valueT
) words
[i
], 2);
5265 /* Write a value out to the object file, using the appropriate
5269 md_number_to_chars (char *buf
, valueT val
, int n
)
5271 if (target_big_endian
)
5272 number_to_chars_bigendian (buf
, val
, n
);
5274 number_to_chars_littleendian (buf
, val
, n
);
5277 /* Align a section (I don't know why this is machine dependent). */
5280 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5285 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5287 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5291 /* We don't have any form of relaxing. */
5294 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5295 asection
*seg ATTRIBUTE_UNUSED
)
5301 /* Convert a machine dependent frag. We never generate these. */
5304 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5305 asection
*sec ATTRIBUTE_UNUSED
,
5306 fragS
*fragp ATTRIBUTE_UNUSED
)
5311 /* We have no need to default values of symbols. */
5314 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
5319 /* Functions concerning relocs. */
5321 /* The location from which a PC relative jump should be calculated,
5322 given a PC relative reloc. */
5325 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
5327 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5332 /* This is called to see whether a fixup should be adjusted to use a
5333 section symbol. We take the opportunity to change a fixup against
5334 a symbol in the TOC subsegment into a reloc against the
5335 corresponding .tc symbol. */
5338 ppc_fix_adjustable (fixS
*fix
)
5340 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5341 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5342 TC_SYMFIELD_TYPE
*tc
;
5344 if (symseg
== absolute_section
)
5347 if (ppc_toc_csect
!= (symbolS
*) NULL
5348 && fix
->fx_addsy
!= ppc_toc_csect
5349 && symseg
== data_section
5350 && val
>= ppc_toc_frag
->fr_address
5351 && (ppc_after_toc_frag
== (fragS
*) NULL
5352 || val
< ppc_after_toc_frag
->fr_address
))
5356 for (sy
= symbol_next (ppc_toc_csect
);
5357 sy
!= (symbolS
*) NULL
;
5358 sy
= symbol_next (sy
))
5360 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5362 if (sy_tc
->class == XMC_TC0
)
5364 if (sy_tc
->class != XMC_TC
)
5366 if (val
== resolve_symbol_value (sy
))
5369 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5374 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5375 _("symbol in .toc does not match any .tc"));
5378 /* Possibly adjust the reloc to be against the csect. */
5379 tc
= symbol_get_tc (fix
->fx_addsy
);
5381 && tc
->class != XMC_TC0
5382 && tc
->class != XMC_TC
5383 && symseg
!= bss_section
5384 /* Don't adjust if this is a reloc in the toc section. */
5385 && (symseg
!= data_section
5386 || ppc_toc_csect
== NULL
5387 || val
< ppc_toc_frag
->fr_address
5388 || (ppc_after_toc_frag
!= NULL
5389 && val
>= ppc_after_toc_frag
->fr_address
)))
5392 symbolS
*next_csect
;
5394 if (symseg
== text_section
)
5395 csect
= ppc_text_csects
;
5396 else if (symseg
== data_section
)
5397 csect
= ppc_data_csects
;
5401 /* Skip the initial dummy symbol. */
5402 csect
= symbol_get_tc (csect
)->next
;
5404 if (csect
!= (symbolS
*) NULL
)
5406 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5407 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5409 /* If the csect address equals the symbol value, then we
5410 have to look through the full symbol table to see
5411 whether this is the csect we want. Note that we will
5412 only get here if the csect has zero length. */
5413 if (symbol_get_frag (csect
)->fr_address
== val
5414 && S_GET_VALUE (csect
) == val
)
5418 for (scan
= symbol_next (csect
);
5420 scan
= symbol_next (scan
))
5422 if (symbol_get_tc (scan
)->subseg
!= 0)
5424 if (scan
== fix
->fx_addsy
)
5428 /* If we found the symbol before the next csect
5429 symbol, then this is the csect we want. */
5430 if (scan
== fix
->fx_addsy
)
5437 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5438 fix
->fx_addsy
= csect
;
5443 /* Adjust a reloc against a .lcomm symbol to be against the base
5445 if (symseg
== bss_section
5446 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5448 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5450 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5457 /* A reloc from one csect to another must be kept. The assembler
5458 will, of course, keep relocs between sections, and it will keep
5459 absolute relocs, but we need to force it to keep PC relative relocs
5460 between two csects in the same section. */
5463 ppc_force_relocation (fixS
*fix
)
5465 /* At this point fix->fx_addsy should already have been converted to
5466 a csect symbol. If the csect does not include the fragment, then
5467 we need to force the relocation. */
5469 && fix
->fx_addsy
!= NULL
5470 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5471 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5472 > fix
->fx_frag
->fr_address
)
5473 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5474 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5475 <= fix
->fx_frag
->fr_address
))))
5478 return generic_force_reloc (fix
);
5481 #endif /* OBJ_XCOFF */
5484 /* If this function returns non-zero, it guarantees that a relocation
5485 will be emitted for a fixup. */
5488 ppc_force_relocation (fixS
*fix
)
5490 /* Branch prediction relocations must force a relocation, as must
5491 the vtable description relocs. */
5492 switch (fix
->fx_r_type
)
5494 case BFD_RELOC_PPC_B16_BRTAKEN
:
5495 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5496 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5497 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5498 case BFD_RELOC_24_PLT_PCREL
:
5499 case BFD_RELOC_PPC64_TOC
:
5505 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5506 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5509 return generic_force_reloc (fix
);
5513 ppc_fix_adjustable (fixS
*fix
)
5515 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5516 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5517 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5518 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5519 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5520 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5521 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5522 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5523 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5527 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5528 rs_align_code frag. */
5531 ppc_handle_align (struct frag
*fragP
)
5533 valueT count
= (fragP
->fr_next
->fr_address
5534 - (fragP
->fr_address
+ fragP
->fr_fix
));
5536 if (count
!= 0 && (count
& 3) == 0)
5538 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
5541 md_number_to_chars (dest
, 0x60000000, 4);
5543 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0)
5545 /* For power6, we want the last nop to be a group terminating
5546 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5547 immediately after this one, with its address set to the last
5548 nop location. This will automatically reduce the number of
5549 nops in the current frag by one. */
5552 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
5554 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
5555 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
5556 group_nop
->fr_fix
= 0;
5557 group_nop
->fr_offset
= 1;
5558 group_nop
->fr_type
= rs_fill
;
5559 fragP
->fr_next
= group_nop
;
5560 dest
= group_nop
->fr_literal
;
5563 md_number_to_chars (dest
, 0x60210000, 4);
5568 /* Apply a fixup to the object code. This is called for all the
5569 fixups we generated by the call to fix_new_exp, above. In the call
5570 above we used a reloc code which was the largest legal reloc code
5571 plus the operand index. Here we undo that to recover the operand
5572 index. At this point all symbol values should be fully resolved,
5573 and we attempt to completely resolve the reloc. If we can not do
5574 that, we determine the correct reloc code and put it back in the
5578 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5580 valueT value
= * valP
;
5583 if (fixP
->fx_addsy
!= NULL
)
5585 /* Hack around bfd_install_relocation brain damage. */
5587 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5592 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5593 the symbol values. If we are doing this relocation the code in
5594 write.c is going to call bfd_install_relocation, which is also
5595 going to use the symbol value. That means that if the reloc is
5596 fully resolved we want to use *valP since bfd_install_relocation is
5598 However, if the reloc is not fully resolved we do not want to use
5599 *valP, and must use fx_offset instead. However, if the reloc
5600 is PC relative, we do want to use *valP since it includes the
5601 result of md_pcrel_from. This is confusing. */
5602 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5605 else if (fixP
->fx_pcrel
)
5609 value
= fixP
->fx_offset
;
5612 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5614 /* We can't actually support subtracting a symbol. */
5615 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5618 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5621 const struct powerpc_operand
*operand
;
5625 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5627 operand
= &powerpc_operands
[opindex
];
5630 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5631 does not generate a reloc. It uses the offset of `sym' within its
5632 csect. Other usages, such as `.long sym', generate relocs. This
5633 is the documented behaviour of non-TOC symbols. */
5634 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5635 && (operand
->bitm
& 0xfff0) == 0xfff0
5636 && operand
->shift
== 0
5637 && (operand
->insert
== NULL
|| ppc_obj64
)
5638 && fixP
->fx_addsy
!= NULL
5639 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5640 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5641 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5642 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5644 value
= fixP
->fx_offset
;
5649 /* Fetch the instruction, insert the fully resolved operand
5650 value, and stuff the instruction back again. */
5651 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5652 if (target_big_endian
)
5653 insn
= bfd_getb32 ((unsigned char *) where
);
5655 insn
= bfd_getl32 ((unsigned char *) where
);
5656 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5657 fixP
->fx_file
, fixP
->fx_line
);
5658 if (target_big_endian
)
5659 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5661 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5664 /* Nothing else to do here. */
5667 assert (fixP
->fx_addsy
!= NULL
);
5669 /* Determine a BFD reloc value based on the operand information.
5670 We are only prepared to turn a few of the operands into
5672 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5673 && operand
->bitm
== 0x3fffffc
5674 && operand
->shift
== 0)
5675 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5676 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5677 && operand
->bitm
== 0xfffc
5678 && operand
->shift
== 0)
5680 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5683 if (target_big_endian
)
5684 fixP
->fx_where
+= 2;
5687 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5688 && operand
->bitm
== 0x3fffffc
5689 && operand
->shift
== 0)
5690 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5691 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5692 && operand
->bitm
== 0xfffc
5693 && operand
->shift
== 0)
5695 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5698 if (target_big_endian
)
5699 fixP
->fx_where
+= 2;
5702 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5703 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5704 && (operand
->bitm
& 0xfff0) == 0xfff0
5705 && operand
->shift
== 0)
5707 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5709 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5712 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5713 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5718 fixP
->fx_r_type
= BFD_RELOC_16
;
5721 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5722 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5726 if (target_big_endian
)
5727 fixP
->fx_where
+= 2;
5729 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5735 /* Use expr_symbol_where to see if this is an expression
5737 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5738 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5739 _("unresolved expression that must be resolved"));
5741 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5742 _("unsupported relocation against %s"),
5743 S_GET_NAME (fixP
->fx_addsy
));
5751 ppc_elf_validate_fix (fixP
, seg
);
5753 switch (fixP
->fx_r_type
)
5755 case BFD_RELOC_CTOR
:
5762 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5766 case BFD_RELOC_32_PCREL
:
5767 case BFD_RELOC_PPC_EMB_NADDR32
:
5768 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5775 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5778 case BFD_RELOC_64_PCREL
:
5779 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5783 case BFD_RELOC_GPREL16
:
5784 case BFD_RELOC_16_GOT_PCREL
:
5785 case BFD_RELOC_16_GOTOFF
:
5786 case BFD_RELOC_LO16_GOTOFF
:
5787 case BFD_RELOC_HI16_GOTOFF
:
5788 case BFD_RELOC_HI16_S_GOTOFF
:
5789 case BFD_RELOC_16_BASEREL
:
5790 case BFD_RELOC_LO16_BASEREL
:
5791 case BFD_RELOC_HI16_BASEREL
:
5792 case BFD_RELOC_HI16_S_BASEREL
:
5793 case BFD_RELOC_PPC_EMB_NADDR16
:
5794 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5795 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5796 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5797 case BFD_RELOC_PPC_EMB_SDAI16
:
5798 case BFD_RELOC_PPC_EMB_SDA2REL
:
5799 case BFD_RELOC_PPC_EMB_SDA2I16
:
5800 case BFD_RELOC_PPC_EMB_RELSEC16
:
5801 case BFD_RELOC_PPC_EMB_RELST_LO
:
5802 case BFD_RELOC_PPC_EMB_RELST_HI
:
5803 case BFD_RELOC_PPC_EMB_RELST_HA
:
5804 case BFD_RELOC_PPC_EMB_RELSDA
:
5805 case BFD_RELOC_PPC_TOC16
:
5807 case BFD_RELOC_PPC64_TOC16_LO
:
5808 case BFD_RELOC_PPC64_TOC16_HI
:
5809 case BFD_RELOC_PPC64_TOC16_HA
:
5813 if (fixP
->fx_addsy
!= NULL
)
5814 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5815 _("cannot emit PC relative %s relocation against %s"),
5816 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5817 S_GET_NAME (fixP
->fx_addsy
));
5819 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5820 _("cannot emit PC relative %s relocation"),
5821 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5824 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5830 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5833 case BFD_RELOC_16_PCREL
:
5834 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5838 case BFD_RELOC_LO16
:
5840 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5843 case BFD_RELOC_LO16_PCREL
:
5844 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5848 /* This case happens when you write, for example,
5850 where L1 and L2 are defined later. */
5851 case BFD_RELOC_HI16
:
5853 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5856 case BFD_RELOC_HI16_PCREL
:
5857 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5861 case BFD_RELOC_HI16_S
:
5863 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5866 case BFD_RELOC_HI16_S_PCREL
:
5867 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5872 case BFD_RELOC_PPC64_HIGHER
:
5875 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5876 PPC_HIGHER (value
), 2);
5879 case BFD_RELOC_PPC64_HIGHER_S
:
5882 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5883 PPC_HIGHERA (value
), 2);
5886 case BFD_RELOC_PPC64_HIGHEST
:
5889 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5890 PPC_HIGHEST (value
), 2);
5893 case BFD_RELOC_PPC64_HIGHEST_S
:
5896 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5897 PPC_HIGHESTA (value
), 2);
5900 case BFD_RELOC_PPC64_ADDR16_DS
:
5901 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5902 case BFD_RELOC_PPC64_GOT16_DS
:
5903 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5904 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5905 case BFD_RELOC_PPC64_SECTOFF_DS
:
5906 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5907 case BFD_RELOC_PPC64_TOC16_DS
:
5908 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5909 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5910 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5914 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5915 unsigned long val
, mask
;
5917 if (target_big_endian
)
5918 val
= bfd_getb32 (where
- 2);
5920 val
= bfd_getl32 (where
);
5922 /* lq insns reserve the four lsbs. */
5923 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5924 && (val
& (0x3f << 26)) == (56u << 26))
5926 val
|= value
& mask
;
5927 if (target_big_endian
)
5928 bfd_putb16 ((bfd_vma
) val
, where
);
5930 bfd_putl16 ((bfd_vma
) val
, where
);
5934 case BFD_RELOC_PPC_B16_BRTAKEN
:
5935 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5936 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5937 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5940 case BFD_RELOC_PPC_TLS
:
5943 case BFD_RELOC_PPC_DTPMOD
:
5944 case BFD_RELOC_PPC_TPREL16
:
5945 case BFD_RELOC_PPC_TPREL16_LO
:
5946 case BFD_RELOC_PPC_TPREL16_HI
:
5947 case BFD_RELOC_PPC_TPREL16_HA
:
5948 case BFD_RELOC_PPC_TPREL
:
5949 case BFD_RELOC_PPC_DTPREL16
:
5950 case BFD_RELOC_PPC_DTPREL16_LO
:
5951 case BFD_RELOC_PPC_DTPREL16_HI
:
5952 case BFD_RELOC_PPC_DTPREL16_HA
:
5953 case BFD_RELOC_PPC_DTPREL
:
5954 case BFD_RELOC_PPC_GOT_TLSGD16
:
5955 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5956 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5957 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5958 case BFD_RELOC_PPC_GOT_TLSLD16
:
5959 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5960 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5961 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5962 case BFD_RELOC_PPC_GOT_TPREL16
:
5963 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5964 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5965 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5966 case BFD_RELOC_PPC_GOT_DTPREL16
:
5967 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5968 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5969 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5970 case BFD_RELOC_PPC64_TPREL16_DS
:
5971 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5972 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5973 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5974 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5975 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5976 case BFD_RELOC_PPC64_DTPREL16_DS
:
5977 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5978 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5979 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5980 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5981 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5982 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5985 /* Because SDA21 modifies the register field, the size is set to 4
5986 bytes, rather than 2, so offset it here appropriately. */
5987 case BFD_RELOC_PPC_EMB_SDA21
:
5991 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5992 + ((target_big_endian
) ? 2 : 0),
5999 /* This can occur if there is a bug in the input assembler, eg:
6000 ".byte <undefined_symbol> - ." */
6002 as_bad (_("Unable to handle reference to symbol %s"),
6003 S_GET_NAME (fixP
->fx_addsy
));
6005 as_bad (_("Unable to resolve expression"));
6009 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
6013 case BFD_RELOC_24_PLT_PCREL
:
6014 case BFD_RELOC_PPC_LOCAL24PC
:
6015 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
6023 /* Fetch the instruction, insert the fully resolved operand
6024 value, and stuff the instruction back again. */
6025 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6026 if (target_big_endian
)
6027 insn
= bfd_getb32 ((unsigned char *) where
);
6029 insn
= bfd_getl32 ((unsigned char *) where
);
6030 if ((value
& 3) != 0)
6031 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6032 _("must branch to an address a multiple of 4"));
6033 if ((offsetT
) value
< -0x40000000
6034 || (offsetT
) value
>= 0x40000000)
6035 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6036 _("@local or @plt branch destination is too far away, %ld bytes"),
6038 insn
= insn
| (value
& 0x03fffffc);
6039 if (target_big_endian
)
6040 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6042 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6046 case BFD_RELOC_VTABLE_INHERIT
:
6049 && !S_IS_DEFINED (fixP
->fx_addsy
)
6050 && !S_IS_WEAK (fixP
->fx_addsy
))
6051 S_SET_WEAK (fixP
->fx_addsy
);
6054 case BFD_RELOC_VTABLE_ENTRY
:
6059 /* Generated by reference to `sym@tocbase'. The sym is
6060 ignored by the linker. */
6061 case BFD_RELOC_PPC64_TOC
:
6067 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6074 fixP
->fx_addnumber
= value
;
6076 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6077 from the section contents. If we are going to be emitting a reloc
6078 then the section contents are immaterial, so don't warn if they
6079 happen to overflow. Leave such warnings to ld. */
6081 fixP
->fx_no_overflow
= 1;
6083 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6084 fixP
->fx_addnumber
= 0;
6088 fixP
->fx_addnumber
= 0;
6090 /* We want to use the offset within the data segment of the
6091 symbol, not the actual VMA of the symbol. */
6092 fixP
->fx_addnumber
=
6093 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
));
6099 /* Generate a reloc for a fixup. */
6102 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6106 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6108 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6109 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6110 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6111 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6112 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6114 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6115 _("reloc %d not supported by object file format"),
6116 (int) fixp
->fx_r_type
);
6119 reloc
->addend
= fixp
->fx_addnumber
;
6125 ppc_cfi_frame_initial_instructions (void)
6127 cfi_add_CFA_def_cfa (1, 0);
6131 tc_ppc_regname_to_dw2regnum (char *regname
)
6133 unsigned int regnum
= -1;
6137 static struct { char *name
; int dw2regnum
; } regnames
[] =
6139 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6140 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6141 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6142 { "spe_acc", 111 }, { "spefscr", 112 }
6145 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6146 if (strcmp (regnames
[i
].name
, regname
) == 0)
6147 return regnames
[i
].dw2regnum
;
6149 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6151 p
= regname
+ 1 + (regname
[1] == '.');
6152 regnum
= strtoul (p
, &q
, 10);
6153 if (p
== q
|| *q
|| regnum
>= 32)
6155 if (regname
[0] == 'f')
6157 else if (regname
[0] == 'v')
6160 else if (regname
[0] == 'c' && regname
[1] == 'r')
6162 p
= regname
+ 2 + (regname
[2] == '.');
6163 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6165 regnum
= p
[0] - '0' + 68;