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
)
689 val
= reg_name_search (cr_names
, sizeof cr_names
/ sizeof cr_names
[0],
694 expr
->X_op
= O_constant
;
695 expr
->X_add_number
= val
;
700 /* Local variables. */
702 /* The type of processor we are assembling for. This is one or more
703 of the PPC_OPCODE flags defined in opcode/ppc.h. */
704 static unsigned long ppc_cpu
= 0;
706 /* Whether to target xcoff64/elf64. */
707 static unsigned int ppc_obj64
= BFD_DEFAULT_TARGET_SIZE
== 64;
709 /* Opcode hash table. */
710 static struct hash_control
*ppc_hash
;
712 /* Macro hash table. */
713 static struct hash_control
*ppc_macro_hash
;
716 /* What type of shared library support to use. */
717 static enum { SHLIB_NONE
, SHLIB_PIC
, SHLIB_MRELOCATABLE
} shlib
= SHLIB_NONE
;
719 /* Flags to set in the elf header. */
720 static flagword ppc_flags
= 0;
722 /* Whether this is Solaris or not. */
723 #ifdef TARGET_SOLARIS_COMMENT
724 #define SOLARIS_P TRUE
726 #define SOLARIS_P FALSE
729 static bfd_boolean msolaris
= SOLARIS_P
;
734 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
735 using a bunch of different sections. These assembler sections,
736 however, are all encompassed within the .text or .data sections of
737 the final output file. We handle this by using different
738 subsegments within these main segments. */
740 /* Next subsegment to allocate within the .text segment. */
741 static subsegT ppc_text_subsegment
= 2;
743 /* Linked list of csects in the text section. */
744 static symbolS
*ppc_text_csects
;
746 /* Next subsegment to allocate within the .data segment. */
747 static subsegT ppc_data_subsegment
= 2;
749 /* Linked list of csects in the data section. */
750 static symbolS
*ppc_data_csects
;
752 /* The current csect. */
753 static symbolS
*ppc_current_csect
;
755 /* The RS/6000 assembler uses a TOC which holds addresses of functions
756 and variables. Symbols are put in the TOC with the .tc pseudo-op.
757 A special relocation is used when accessing TOC entries. We handle
758 the TOC as a subsegment within the .data segment. We set it up if
759 we see a .toc pseudo-op, and save the csect symbol here. */
760 static symbolS
*ppc_toc_csect
;
762 /* The first frag in the TOC subsegment. */
763 static fragS
*ppc_toc_frag
;
765 /* The first frag in the first subsegment after the TOC in the .data
766 segment. NULL if there are no subsegments after the TOC. */
767 static fragS
*ppc_after_toc_frag
;
769 /* The current static block. */
770 static symbolS
*ppc_current_block
;
772 /* The COFF debugging section; set by md_begin. This is not the
773 .debug section, but is instead the secret BFD section which will
774 cause BFD to set the section number of a symbol to N_DEBUG. */
775 static asection
*ppc_coff_debug_section
;
777 #endif /* OBJ_XCOFF */
781 /* Various sections that we need for PE coff support. */
782 static segT ydata_section
;
783 static segT pdata_section
;
784 static segT reldata_section
;
785 static segT rdata_section
;
786 static segT tocdata_section
;
788 /* The current section and the previous section. See ppc_previous. */
789 static segT ppc_previous_section
;
790 static segT ppc_current_section
;
795 symbolS
*GOT_symbol
; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
796 #define PPC_APUINFO_ISEL 0x40
797 #define PPC_APUINFO_PMR 0x41
798 #define PPC_APUINFO_RFMCI 0x42
799 #define PPC_APUINFO_CACHELCK 0x43
800 #define PPC_APUINFO_SPE 0x100
801 #define PPC_APUINFO_EFS 0x101
802 #define PPC_APUINFO_BRLOCK 0x102
805 * We keep a list of APUinfo
807 unsigned long *ppc_apuinfo_list
;
808 unsigned int ppc_apuinfo_num
;
809 unsigned int ppc_apuinfo_num_alloc
;
813 const char *const md_shortopts
= "b:l:usm:K:VQ:";
815 const char *const md_shortopts
= "um:";
817 const struct option md_longopts
[] = {
818 {NULL
, no_argument
, NULL
, 0}
820 const size_t md_longopts_size
= sizeof (md_longopts
);
823 /* Handle -m options that set cpu type, and .machine arg. */
826 parse_cpu (const char *arg
)
828 unsigned long altivec_or_spe
= ppc_cpu
& (PPC_OPCODE_ALTIVEC
| PPC_OPCODE_SPE
);
830 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
832 if (strcmp (arg
, "pwrx") == 0 || strcmp (arg
, "pwr2") == 0)
833 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_POWER2
| PPC_OPCODE_32
;
834 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
835 else if (strcmp (arg
, "pwr") == 0)
836 ppc_cpu
= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
837 /* -m601 means to assemble for the PowerPC 601, which includes
838 instructions that are holdovers from the Power. */
839 else if (strcmp (arg
, "601") == 0)
840 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
841 | PPC_OPCODE_601
| PPC_OPCODE_32
);
842 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
844 else if (strcmp (arg
, "ppc") == 0
845 || strcmp (arg
, "ppc32") == 0
846 || strcmp (arg
, "603") == 0
847 || strcmp (arg
, "604") == 0)
848 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
849 /* Do all PPC750s have paired single ops? */
850 else if (strcmp (arg
, "750cl") == 0)
851 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_PPCPS
;
852 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
853 else if (strcmp (arg
, "403") == 0
854 || strcmp (arg
, "405") == 0)
855 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
856 | PPC_OPCODE_403
| PPC_OPCODE_32
);
857 else if (strcmp (arg
, "440") == 0)
858 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
859 | PPC_OPCODE_440
| PPC_OPCODE_ISEL
| PPC_OPCODE_RFMCI
);
860 else if (strcmp (arg
, "7400") == 0
861 || strcmp (arg
, "7410") == 0
862 || strcmp (arg
, "7450") == 0
863 || strcmp (arg
, "7455") == 0)
864 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
865 | PPC_OPCODE_ALTIVEC
| PPC_OPCODE_32
);
866 else if (strcmp (arg
, "e300") == 0)
867 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
869 else if (strcmp (arg
, "altivec") == 0)
872 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
;
874 altivec_or_spe
|= PPC_OPCODE_ALTIVEC
;
876 else if (strcmp (arg
, "e500") == 0 || strcmp (arg
, "e500x2") == 0)
878 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_SPE
879 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
| PPC_OPCODE_BRLOCK
880 | PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
883 else if (strcmp (arg
, "spe") == 0)
886 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_EFS
;
888 altivec_or_spe
|= PPC_OPCODE_SPE
;
890 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
892 else if (strcmp (arg
, "ppc64") == 0 || strcmp (arg
, "620") == 0)
894 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
896 else if (strcmp (arg
, "ppc64bridge") == 0)
898 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
899 | PPC_OPCODE_64_BRIDGE
| PPC_OPCODE_64
);
901 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
902 else if (strcmp (arg
, "booke") == 0 || strcmp (arg
, "booke32") == 0)
904 ppc_cpu
= PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
| PPC_OPCODE_32
;
906 /* -mbooke64 means enable 64-bit BookE support. */
907 else if (strcmp (arg
, "booke64") == 0)
909 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_BOOKE
910 | PPC_OPCODE_BOOKE64
| PPC_OPCODE_64
);
912 else if (strcmp (arg
, "power4") == 0)
914 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
);
917 else if (strcmp (arg
, "power5") == 0)
919 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
920 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
921 | PPC_OPCODE_POWER5
);
923 else if (strcmp (arg
, "power6") == 0)
925 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
926 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
927 | PPC_OPCODE_POWER5
| PPC_OPCODE_POWER6
);
929 else if (strcmp (arg
, "cell") == 0)
931 ppc_cpu
= (PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
932 | PPC_OPCODE_64
| PPC_OPCODE_POWER4
935 /* -mcom means assemble for the common intersection between Power
936 and PowerPC. At present, we just allow the union, rather
937 than the intersection. */
938 else if (strcmp (arg
, "com") == 0)
939 ppc_cpu
= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
940 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
941 else if (strcmp (arg
, "any") == 0)
942 ppc_cpu
|= PPC_OPCODE_ANY
;
946 /* Make sure the the Altivec and SPE bits are not lost. */
947 ppc_cpu
|= altivec_or_spe
;
952 md_parse_option (int c
, char *arg
)
957 /* -u means that any undefined symbols should be treated as
958 external, which is the default for gas anyhow. */
963 /* Solaris as takes -le (presumably for little endian). For completeness
964 sake, recognize -be also. */
965 if (strcmp (arg
, "e") == 0)
967 target_big_endian
= 0;
968 set_target_endian
= 1;
976 if (strcmp (arg
, "e") == 0)
978 target_big_endian
= 1;
979 set_target_endian
= 1;
987 /* Recognize -K PIC. */
988 if (strcmp (arg
, "PIC") == 0 || strcmp (arg
, "pic") == 0)
991 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
999 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1001 if (strcmp (arg
, "64") == 0)
1006 as_fatal (_("%s unsupported"), "-a64");
1009 else if (strcmp (arg
, "32") == 0)
1016 if (parse_cpu (arg
))
1019 else if (strcmp (arg
, "regnames") == 0)
1022 else if (strcmp (arg
, "no-regnames") == 0)
1023 reg_names_p
= FALSE
;
1026 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1027 that require relocation. */
1028 else if (strcmp (arg
, "relocatable") == 0)
1030 shlib
= SHLIB_MRELOCATABLE
;
1031 ppc_flags
|= EF_PPC_RELOCATABLE
;
1034 else if (strcmp (arg
, "relocatable-lib") == 0)
1036 shlib
= SHLIB_MRELOCATABLE
;
1037 ppc_flags
|= EF_PPC_RELOCATABLE_LIB
;
1040 /* -memb, set embedded bit. */
1041 else if (strcmp (arg
, "emb") == 0)
1042 ppc_flags
|= EF_PPC_EMB
;
1044 /* -mlittle/-mbig set the endianess. */
1045 else if (strcmp (arg
, "little") == 0
1046 || strcmp (arg
, "little-endian") == 0)
1048 target_big_endian
= 0;
1049 set_target_endian
= 1;
1052 else if (strcmp (arg
, "big") == 0 || strcmp (arg
, "big-endian") == 0)
1054 target_big_endian
= 1;
1055 set_target_endian
= 1;
1058 else if (strcmp (arg
, "solaris") == 0)
1061 ppc_comment_chars
= ppc_solaris_comment_chars
;
1064 else if (strcmp (arg
, "no-solaris") == 0)
1067 ppc_comment_chars
= ppc_eabi_comment_chars
;
1072 as_bad (_("invalid switch -m%s"), arg
);
1078 /* -V: SVR4 argument to print version ID. */
1080 print_version_id ();
1083 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1084 should be emitted or not. FIXME: Not implemented. */
1088 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1089 rather than .stabs.excl, which is ignored by the linker.
1090 FIXME: Not implemented. */
1106 md_show_usage (FILE *stream
)
1108 fprintf (stream
, _("\
1110 -a32 generate ELF32/XCOFF32\n\
1111 -a64 generate ELF64/XCOFF64\n\
1113 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1114 -mpwr generate code for POWER (RIOS1)\n\
1115 -m601 generate code for PowerPC 601\n\
1116 -mppc, -mppc32, -m603, -m604\n\
1117 generate code for PowerPC 603/604\n\
1118 -m403, -m405 generate code for PowerPC 403/405\n\
1119 -m440 generate code for PowerPC 440\n\
1120 -m7400, -m7410, -m7450, -m7455\n\
1121 generate code for PowerPC 7400/7410/7450/7455\n\
1122 -m750cl generate code for PowerPC 750cl\n"));
1123 fprintf (stream
, _("\
1124 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1125 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1126 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1127 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1128 -mpower4 generate code for Power4 architecture\n\
1129 -mpower5 generate code for Power5 architecture\n\
1130 -mpower6 generate code for Power6 architecture\n\
1131 -mcell generate code for Cell Broadband Engine architecture\n\
1132 -mcom generate code Power/PowerPC common instructions\n\
1133 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1134 fprintf (stream
, _("\
1135 -maltivec generate code for AltiVec\n\
1136 -me300 generate code for PowerPC e300 family\n\
1137 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1138 -mspe generate code for Motorola SPE instructions\n\
1139 -mregnames Allow symbolic names for registers\n\
1140 -mno-regnames Do not allow symbolic names for registers\n"));
1142 fprintf (stream
, _("\
1143 -mrelocatable support for GCC's -mrelocatble option\n\
1144 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1145 -memb set PPC_EMB bit in ELF flags\n\
1146 -mlittle, -mlittle-endian, -l, -le\n\
1147 generate code for a little endian machine\n\
1148 -mbig, -mbig-endian, -b, -be\n\
1149 generate code for a big endian machine\n\
1150 -msolaris generate code for Solaris\n\
1151 -mno-solaris do not generate code for Solaris\n\
1152 -V print assembler version number\n\
1153 -Qy, -Qn ignored\n"));
1157 /* Set ppc_cpu if it is not already set. */
1162 const char *default_os
= TARGET_OS
;
1163 const char *default_cpu
= TARGET_CPU
;
1165 if ((ppc_cpu
& ~PPC_OPCODE_ANY
) == 0)
1168 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_64
;
1169 else if (strncmp (default_os
, "aix", 3) == 0
1170 && default_os
[3] >= '4' && default_os
[3] <= '9')
1171 ppc_cpu
|= PPC_OPCODE_COMMON
| PPC_OPCODE_32
;
1172 else if (strncmp (default_os
, "aix3", 4) == 0)
1173 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1174 else if (strcmp (default_cpu
, "rs6000") == 0)
1175 ppc_cpu
|= PPC_OPCODE_POWER
| PPC_OPCODE_32
;
1176 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1177 ppc_cpu
|= PPC_OPCODE_PPC
| PPC_OPCODE_CLASSIC
| PPC_OPCODE_32
;
1179 as_fatal (_("Unknown default cpu = %s, os = %s"),
1180 default_cpu
, default_os
);
1184 /* Figure out the BFD architecture to use. This function and ppc_mach
1185 are called well before md_begin, when the output file is opened. */
1187 enum bfd_architecture
1190 const char *default_cpu
= TARGET_CPU
;
1193 if ((ppc_cpu
& PPC_OPCODE_PPC
) != 0)
1194 return bfd_arch_powerpc
;
1195 else if ((ppc_cpu
& PPC_OPCODE_POWER
) != 0)
1196 return bfd_arch_rs6000
;
1197 else if ((ppc_cpu
& (PPC_OPCODE_COMMON
| PPC_OPCODE_ANY
)) != 0)
1199 if (strcmp (default_cpu
, "rs6000") == 0)
1200 return bfd_arch_rs6000
;
1201 else if (strncmp (default_cpu
, "powerpc", 7) == 0)
1202 return bfd_arch_powerpc
;
1205 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1206 return bfd_arch_unknown
;
1213 return bfd_mach_ppc64
;
1214 else if (ppc_arch () == bfd_arch_rs6000
)
1215 return bfd_mach_rs6k
;
1217 return bfd_mach_ppc
;
1221 ppc_target_format (void)
1225 return target_big_endian
? "pe-powerpc" : "pe-powerpcle";
1227 return "xcoff-powermac";
1230 return (ppc_obj64
? "aix5coff64-rs6000" : "aixcoff-rs6000");
1232 return (ppc_obj64
? "aixcoff64-rs6000" : "aixcoff-rs6000");
1238 return "elf32-powerpc-vxworks";
1240 return (target_big_endian
1241 ? (ppc_obj64
? "elf64-powerpc" : "elf32-powerpc")
1242 : (ppc_obj64
? "elf64-powerpcle" : "elf32-powerpcle"));
1247 /* Insert opcodes and macros into hash tables. Called at startup and
1251 ppc_setup_opcodes (void)
1253 const struct powerpc_opcode
*op
;
1254 const struct powerpc_opcode
*op_end
;
1255 const struct powerpc_macro
*macro
;
1256 const struct powerpc_macro
*macro_end
;
1257 bfd_boolean bad_insn
= FALSE
;
1258 unsigned long prev_opcode
= 0;
1260 if (ppc_hash
!= NULL
)
1261 hash_die (ppc_hash
);
1262 if (ppc_macro_hash
!= NULL
)
1263 hash_die (ppc_macro_hash
);
1265 /* Insert the opcodes into a hash table. */
1266 ppc_hash
= hash_new ();
1268 if (ENABLE_CHECKING
)
1272 /* Check operand masks. Code here and in the disassembler assumes
1273 all the 1's in the mask are contiguous. */
1274 for (i
= 0; i
< num_powerpc_operands
; ++i
)
1276 unsigned long mask
= powerpc_operands
[i
].bitm
;
1277 unsigned long right_bit
;
1280 right_bit
= mask
& -mask
;
1282 right_bit
= mask
& -mask
;
1283 if (mask
!= right_bit
)
1285 as_bad (_("powerpc_operands[%d].bitm invalid"), i
);
1288 for (j
= i
+ 1; j
< num_powerpc_operands
; ++j
)
1289 if (memcmp (&powerpc_operands
[i
], &powerpc_operands
[j
],
1290 sizeof (powerpc_operands
[0])) == 0)
1292 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1299 op_end
= powerpc_opcodes
+ powerpc_num_opcodes
;
1300 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1302 if (ENABLE_CHECKING
)
1304 const unsigned char *o
;
1305 unsigned long omask
= op
->mask
;
1306 unsigned long major_opcode
= PPC_OP (op
->opcode
);
1308 /* The major opcodes had better be sorted. Code in the disassembler
1309 assumes the insns are sorted according to major opcode. */
1310 if (major_opcode
< prev_opcode
)
1312 as_bad (_("major opcode is not sorted for %s"),
1316 prev_opcode
= major_opcode
;
1318 /* The mask had better not trim off opcode bits. */
1319 if ((op
->opcode
& omask
) != op
->opcode
)
1321 as_bad (_("mask trims opcode bits for %s"),
1326 /* The operands must not overlap the opcode or each other. */
1327 for (o
= op
->operands
; *o
; ++o
)
1328 if (*o
>= num_powerpc_operands
)
1330 as_bad (_("operand index error for %s"),
1336 const struct powerpc_operand
*operand
= &powerpc_operands
[*o
];
1337 if (operand
->shift
>= 0)
1339 unsigned long mask
= operand
->bitm
<< operand
->shift
;
1342 as_bad (_("operand %d overlap in %s"),
1343 (int) (o
- op
->operands
), op
->name
);
1351 if ((op
->flags
& ppc_cpu
& ~(PPC_OPCODE_32
| PPC_OPCODE_64
)) != 0
1352 && ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
)) == 0
1353 || ((op
->flags
& (PPC_OPCODE_32
| PPC_OPCODE_64
))
1354 == (ppc_cpu
& (PPC_OPCODE_32
| PPC_OPCODE_64
)))
1355 || (ppc_cpu
& PPC_OPCODE_64_BRIDGE
) != 0)
1356 /* Certain instructions (eg: extsw) do not exist in the
1357 32-bit BookE instruction set, but they do exist in the
1358 64-bit BookE instruction set, and other PPC instruction
1359 sets. Check to see if the opcode has the BOOKE64 flag set.
1360 If it does make sure that the target CPU is not the BookE32. */
1361 && ((op
->flags
& PPC_OPCODE_BOOKE64
) == 0
1362 || (ppc_cpu
& PPC_OPCODE_BOOKE64
) == PPC_OPCODE_BOOKE64
1363 || (ppc_cpu
& PPC_OPCODE_BOOKE
) == 0)
1364 && ((op
->flags
& (PPC_OPCODE_POWER4
| PPC_OPCODE_NOPOWER4
)) == 0
1365 || ((op
->flags
& PPC_OPCODE_POWER4
)
1366 == (ppc_cpu
& PPC_OPCODE_POWER4
)))
1367 && ((op
->flags
& PPC_OPCODE_POWER5
) == 0
1368 || ((op
->flags
& PPC_OPCODE_POWER5
)
1369 == (ppc_cpu
& PPC_OPCODE_POWER5
)))
1370 && ((op
->flags
& PPC_OPCODE_POWER6
) == 0
1371 || ((op
->flags
& PPC_OPCODE_POWER6
)
1372 == (ppc_cpu
& PPC_OPCODE_POWER6
))))
1376 retval
= hash_insert (ppc_hash
, op
->name
, (void *) op
);
1379 /* Ignore Power duplicates for -m601. */
1380 if ((ppc_cpu
& PPC_OPCODE_601
) != 0
1381 && (op
->flags
& PPC_OPCODE_POWER
) != 0)
1384 as_bad (_("duplicate instruction %s"),
1391 if ((ppc_cpu
& PPC_OPCODE_ANY
) != 0)
1392 for (op
= powerpc_opcodes
; op
< op_end
; op
++)
1393 hash_insert (ppc_hash
, op
->name
, (void *) op
);
1395 /* Insert the macros into a hash table. */
1396 ppc_macro_hash
= hash_new ();
1398 macro_end
= powerpc_macros
+ powerpc_num_macros
;
1399 for (macro
= powerpc_macros
; macro
< macro_end
; macro
++)
1401 if ((macro
->flags
& ppc_cpu
) != 0)
1405 retval
= hash_insert (ppc_macro_hash
, macro
->name
, (void *) macro
);
1406 if (retval
!= (const char *) NULL
)
1408 as_bad (_("duplicate macro %s"), macro
->name
);
1418 /* This function is called when the assembler starts up. It is called
1419 after the options have been parsed and the output file has been
1427 ppc_cie_data_alignment
= ppc_obj64
? -8 : -4;
1430 /* Set the ELF flags if desired. */
1431 if (ppc_flags
&& !msolaris
)
1432 bfd_set_private_flags (stdoutput
, ppc_flags
);
1435 ppc_setup_opcodes ();
1437 /* Tell the main code what the endianness is if it is not overridden
1439 if (!set_target_endian
)
1441 set_target_endian
= 1;
1442 target_big_endian
= PPC_BIG_ENDIAN
;
1446 ppc_coff_debug_section
= coff_section_from_bfd_index (stdoutput
, N_DEBUG
);
1448 /* Create dummy symbols to serve as initial csects. This forces the
1449 text csects to precede the data csects. These symbols will not
1451 ppc_text_csects
= symbol_make ("dummy\001");
1452 symbol_get_tc (ppc_text_csects
)->within
= ppc_text_csects
;
1453 ppc_data_csects
= symbol_make ("dummy\001");
1454 symbol_get_tc (ppc_data_csects
)->within
= ppc_data_csects
;
1459 ppc_current_section
= text_section
;
1460 ppc_previous_section
= 0;
1469 if (ppc_apuinfo_list
== NULL
)
1472 /* Ok, so write the section info out. We have this layout:
1476 0 8 length of "APUinfo\0"
1477 4 (n*4) number of APU's (4 bytes each)
1480 20 APU#1 first APU's info
1481 24 APU#2 second APU's info
1486 asection
*seg
= now_seg
;
1487 subsegT subseg
= now_subseg
;
1488 asection
*apuinfo_secp
= (asection
*) NULL
;
1491 /* Create the .PPC.EMB.apuinfo section. */
1492 apuinfo_secp
= subseg_new (".PPC.EMB.apuinfo", 0);
1493 bfd_set_section_flags (stdoutput
,
1495 SEC_HAS_CONTENTS
| SEC_READONLY
);
1498 md_number_to_chars (p
, (valueT
) 8, 4);
1501 md_number_to_chars (p
, (valueT
) ppc_apuinfo_num
* 4, 4);
1504 md_number_to_chars (p
, (valueT
) 2, 4);
1507 strcpy (p
, "APUinfo");
1509 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
1512 md_number_to_chars (p
, (valueT
) ppc_apuinfo_list
[i
], 4);
1515 frag_align (2, 0, 0);
1517 /* We probably can't restore the current segment, for there likely
1520 subseg_set (seg
, subseg
);
1525 /* Insert an operand value into an instruction. */
1527 static unsigned long
1528 ppc_insert_operand (unsigned long insn
,
1529 const struct powerpc_operand
*operand
,
1534 long min
, max
, right
;
1536 max
= operand
->bitm
;
1540 if ((operand
->flags
& PPC_OPERAND_SIGNED
) != 0)
1542 if ((operand
->flags
& PPC_OPERAND_SIGNOPT
) == 0)
1543 max
= (max
>> 1) & -right
;
1544 min
= ~max
& -right
;
1547 if ((operand
->flags
& PPC_OPERAND_PLUS1
) != 0)
1550 if ((operand
->flags
& PPC_OPERAND_NEGATIVE
) != 0)
1559 /* Some people write constants with the sign extension done by
1560 hand but only up to 32 bits. This shouldn't really be valid,
1561 but, to permit this code to assemble on a 64-bit host, we
1562 sign extend the 32-bit value to 64 bits if so doing makes the
1565 && (offsetT
) (val
- 0x80000000 - 0x80000000) >= min
1566 && (offsetT
) (val
- 0x80000000 - 0x80000000) <= max
1567 && ((val
- 0x80000000 - 0x80000000) & (right
- 1)) == 0)
1568 val
= val
- 0x80000000 - 0x80000000;
1570 /* Similarly, people write expressions like ~(1<<15), and expect
1571 this to be OK for a 32-bit unsigned value. */
1573 && (offsetT
) (val
+ 0x80000000 + 0x80000000) >= min
1574 && (offsetT
) (val
+ 0x80000000 + 0x80000000) <= max
1575 && ((val
+ 0x80000000 + 0x80000000) & (right
- 1)) == 0)
1576 val
= val
+ 0x80000000 + 0x80000000;
1580 || (val
& (right
- 1)) != 0)
1581 as_bad_value_out_of_range (_("operand"), val
, min
, max
, file
, line
);
1584 if (operand
->insert
)
1589 insn
= (*operand
->insert
) (insn
, (long) val
, ppc_cpu
, &errmsg
);
1590 if (errmsg
!= (const char *) NULL
)
1591 as_bad_where (file
, line
, errmsg
);
1594 insn
|= ((long) val
& operand
->bitm
) << operand
->shift
;
1601 /* Parse @got, etc. and return the desired relocation. */
1602 static bfd_reloc_code_real_type
1603 ppc_elf_suffix (char **str_p
, expressionS
*exp_p
)
1607 unsigned int length
: 8;
1608 unsigned int valid32
: 1;
1609 unsigned int valid64
: 1;
1618 const struct map_bfd
*ptr
;
1620 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1621 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1622 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1624 static const struct map_bfd mapping
[] = {
1625 MAP ("l", BFD_RELOC_LO16
),
1626 MAP ("h", BFD_RELOC_HI16
),
1627 MAP ("ha", BFD_RELOC_HI16_S
),
1628 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN
),
1629 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN
),
1630 MAP ("got", BFD_RELOC_16_GOTOFF
),
1631 MAP ("got@l", BFD_RELOC_LO16_GOTOFF
),
1632 MAP ("got@h", BFD_RELOC_HI16_GOTOFF
),
1633 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF
),
1634 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF
),
1635 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF
),
1636 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF
),
1637 MAP ("copy", BFD_RELOC_PPC_COPY
),
1638 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT
),
1639 MAP ("sectoff", BFD_RELOC_16_BASEREL
),
1640 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL
),
1641 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL
),
1642 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL
),
1643 MAP ("tls", BFD_RELOC_PPC_TLS
),
1644 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD
),
1645 MAP ("dtprel", BFD_RELOC_PPC_DTPREL
),
1646 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO
),
1647 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI
),
1648 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA
),
1649 MAP ("tprel", BFD_RELOC_PPC_TPREL
),
1650 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO
),
1651 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI
),
1652 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA
),
1653 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16
),
1654 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO
),
1655 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI
),
1656 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA
),
1657 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16
),
1658 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO
),
1659 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI
),
1660 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA
),
1661 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16
),
1662 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO
),
1663 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI
),
1664 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA
),
1665 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16
),
1666 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO
),
1667 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI
),
1668 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA
),
1669 MAP32 ("fixup", BFD_RELOC_CTOR
),
1670 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL
),
1671 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL
),
1672 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC
),
1673 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC
),
1674 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL
),
1675 MAP32 ("sdarel", BFD_RELOC_GPREL16
),
1676 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32
),
1677 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16
),
1678 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO
),
1679 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI
),
1680 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA
),
1681 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16
),
1682 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL
),
1683 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16
),
1684 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21
),
1685 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF
),
1686 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16
),
1687 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO
),
1688 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI
),
1689 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA
),
1690 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD
),
1691 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA
),
1692 MAP32 ("xgot", BFD_RELOC_PPC_TOC16
),
1693 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER
),
1694 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S
),
1695 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST
),
1696 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S
),
1697 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC
),
1698 MAP64 ("toc", BFD_RELOC_PPC_TOC16
),
1699 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO
),
1700 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI
),
1701 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA
),
1702 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER
),
1703 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA
),
1704 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST
),
1705 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA
),
1706 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER
),
1707 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA
),
1708 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST
),
1709 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA
),
1710 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED
}
1714 return BFD_RELOC_UNUSED
;
1716 for (ch
= *str
, str2
= ident
;
1717 (str2
< ident
+ sizeof (ident
) - 1
1718 && (ISALNUM (ch
) || ch
== '@'));
1721 *str2
++ = TOLOWER (ch
);
1728 for (ptr
= &mapping
[0]; ptr
->length
> 0; ptr
++)
1729 if (ch
== ptr
->string
[0]
1730 && len
== ptr
->length
1731 && memcmp (ident
, ptr
->string
, ptr
->length
) == 0
1732 && (ppc_obj64
? ptr
->valid64
: ptr
->valid32
))
1734 int reloc
= ptr
->reloc
;
1737 if (exp_p
->X_add_number
!= 0
1738 && (reloc
== (int) BFD_RELOC_16_GOTOFF
1739 || reloc
== (int) BFD_RELOC_LO16_GOTOFF
1740 || reloc
== (int) BFD_RELOC_HI16_GOTOFF
1741 || reloc
== (int) BFD_RELOC_HI16_S_GOTOFF
))
1742 as_warn (_("identifier+constant@got means identifier@got+constant"));
1744 /* Now check for identifier@suffix+constant. */
1745 if (*str
== '-' || *str
== '+')
1747 char *orig_line
= input_line_pointer
;
1748 expressionS new_exp
;
1750 input_line_pointer
= str
;
1751 expression (&new_exp
);
1752 if (new_exp
.X_op
== O_constant
)
1754 exp_p
->X_add_number
+= new_exp
.X_add_number
;
1755 str
= input_line_pointer
;
1758 if (&input_line_pointer
!= str_p
)
1759 input_line_pointer
= orig_line
;
1763 if (reloc
== (int) BFD_RELOC_PPC64_TOC
1764 && exp_p
->X_op
== O_symbol
1765 && strcmp (S_GET_NAME (exp_p
->X_add_symbol
), ".TOC.") == 0)
1767 /* Change the symbol so that the dummy .TOC. symbol can be
1768 omitted from the object file. */
1769 exp_p
->X_add_symbol
= &abs_symbol
;
1772 return (bfd_reloc_code_real_type
) reloc
;
1775 return BFD_RELOC_UNUSED
;
1778 /* Like normal .long/.short/.word, except support @got, etc.
1779 Clobbers input_line_pointer, checks end-of-line. */
1781 ppc_elf_cons (int nbytes
/* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1784 bfd_reloc_code_real_type reloc
;
1786 if (is_it_end_of_statement ())
1788 demand_empty_rest_of_line ();
1795 if (exp
.X_op
== O_symbol
1796 && *input_line_pointer
== '@'
1797 && (reloc
= ppc_elf_suffix (&input_line_pointer
,
1798 &exp
)) != BFD_RELOC_UNUSED
)
1800 reloc_howto_type
*reloc_howto
;
1803 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, reloc
);
1804 size
= bfd_get_reloc_size (reloc_howto
);
1808 as_bad (_("%s relocations do not fit in %d bytes\n"),
1809 reloc_howto
->name
, nbytes
);
1816 p
= frag_more (nbytes
);
1818 if (target_big_endian
)
1819 offset
= nbytes
- size
;
1820 fix_new_exp (frag_now
, p
- frag_now
->fr_literal
+ offset
, size
,
1825 emit_expr (&exp
, (unsigned int) nbytes
);
1827 while (*input_line_pointer
++ == ',');
1829 /* Put terminator back into stream. */
1830 input_line_pointer
--;
1831 demand_empty_rest_of_line ();
1834 /* Solaris pseduo op to change to the .rodata section. */
1836 ppc_elf_rdata (int xxx
)
1838 char *save_line
= input_line_pointer
;
1839 static char section
[] = ".rodata\n";
1841 /* Just pretend this is .section .rodata */
1842 input_line_pointer
= section
;
1843 obj_elf_section (xxx
);
1845 input_line_pointer
= save_line
;
1848 /* Pseudo op to make file scope bss items. */
1850 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED
)
1863 name
= input_line_pointer
;
1864 c
= get_symbol_end ();
1866 /* just after name is now '\0'. */
1867 p
= input_line_pointer
;
1870 if (*input_line_pointer
!= ',')
1872 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1873 ignore_rest_of_line ();
1877 input_line_pointer
++; /* skip ',' */
1878 if ((size
= get_absolute_expression ()) < 0)
1880 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size
);
1881 ignore_rest_of_line ();
1885 /* The third argument to .lcomm is the alignment. */
1886 if (*input_line_pointer
!= ',')
1890 ++input_line_pointer
;
1891 align
= get_absolute_expression ();
1894 as_warn (_("ignoring bad alignment"));
1900 symbolP
= symbol_find_or_make (name
);
1903 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
1905 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1906 S_GET_NAME (symbolP
));
1907 ignore_rest_of_line ();
1911 if (S_GET_VALUE (symbolP
) && S_GET_VALUE (symbolP
) != (valueT
) size
)
1913 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1914 S_GET_NAME (symbolP
),
1915 (long) S_GET_VALUE (symbolP
),
1918 ignore_rest_of_line ();
1924 old_subsec
= now_subseg
;
1927 /* Convert to a power of 2 alignment. */
1928 for (align2
= 0; (align
& 1) == 0; align
>>= 1, ++align2
);
1931 as_bad (_("Common alignment not a power of 2"));
1932 ignore_rest_of_line ();
1939 record_alignment (bss_section
, align2
);
1940 subseg_set (bss_section
, 0);
1942 frag_align (align2
, 0, 0);
1943 if (S_GET_SEGMENT (symbolP
) == bss_section
)
1944 symbol_get_frag (symbolP
)->fr_symbol
= 0;
1945 symbol_set_frag (symbolP
, frag_now
);
1946 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, symbolP
, size
,
1949 S_SET_SIZE (symbolP
, size
);
1950 S_SET_SEGMENT (symbolP
, bss_section
);
1951 subseg_set (old_sec
, old_subsec
);
1952 demand_empty_rest_of_line ();
1955 /* Validate any relocations emitted for -mrelocatable, possibly adding
1956 fixups for word relocations in writable segments, so we can adjust
1959 ppc_elf_validate_fix (fixS
*fixp
, segT seg
)
1961 if (fixp
->fx_done
|| fixp
->fx_pcrel
)
1970 case SHLIB_MRELOCATABLE
:
1971 if (fixp
->fx_r_type
<= BFD_RELOC_UNUSED
1972 && fixp
->fx_r_type
!= BFD_RELOC_16_GOTOFF
1973 && fixp
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
1974 && fixp
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
1975 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
1976 && fixp
->fx_r_type
!= BFD_RELOC_16_BASEREL
1977 && fixp
->fx_r_type
!= BFD_RELOC_LO16_BASEREL
1978 && fixp
->fx_r_type
!= BFD_RELOC_HI16_BASEREL
1979 && fixp
->fx_r_type
!= BFD_RELOC_HI16_S_BASEREL
1980 && (seg
->flags
& SEC_LOAD
) != 0
1981 && strcmp (segment_name (seg
), ".got2") != 0
1982 && strcmp (segment_name (seg
), ".dtors") != 0
1983 && strcmp (segment_name (seg
), ".ctors") != 0
1984 && strcmp (segment_name (seg
), ".fixup") != 0
1985 && strcmp (segment_name (seg
), ".gcc_except_table") != 0
1986 && strcmp (segment_name (seg
), ".eh_frame") != 0
1987 && strcmp (segment_name (seg
), ".ex_shared") != 0)
1989 if ((seg
->flags
& (SEC_READONLY
| SEC_CODE
)) != 0
1990 || fixp
->fx_r_type
!= BFD_RELOC_CTOR
)
1992 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
1993 _("Relocation cannot be done when using -mrelocatable"));
2000 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2001 function descriptor sym if the corresponding code sym is used. */
2004 ppc_frob_file_before_adjust (void)
2012 for (symp
= symbol_rootP
; symp
; symp
= symbol_next (symp
))
2019 name
= S_GET_NAME (symp
);
2023 if (! S_IS_WEAK (symp
)
2024 || S_IS_DEFINED (symp
))
2027 len
= strlen (name
) + 1;
2028 dotname
= xmalloc (len
+ 1);
2030 memcpy (dotname
+ 1, name
, len
);
2031 dotsym
= symbol_find_noref (dotname
, 1);
2033 if (dotsym
!= NULL
&& (symbol_used_p (dotsym
)
2034 || symbol_used_in_reloc_p (dotsym
)))
2035 symbol_mark_used (symp
);
2039 toc
= bfd_get_section_by_name (stdoutput
, ".toc");
2041 && bfd_section_size (stdoutput
, toc
) > 0x10000)
2042 as_warn (_("TOC section size exceeds 64k"));
2044 /* Don't emit .TOC. symbol. */
2045 symp
= symbol_find (".TOC.");
2047 symbol_remove (symp
, &symbol_rootP
, &symbol_lastP
);
2049 #endif /* OBJ_ELF */
2054 * Summary of parse_toc_entry.
2056 * in: Input_line_pointer points to the '[' in one of:
2058 * [toc] [tocv] [toc32] [toc64]
2060 * Anything else is an error of one kind or another.
2063 * return value: success or failure
2064 * toc_kind: kind of toc reference
2065 * input_line_pointer:
2066 * success: first char after the ']'
2067 * failure: unchanged
2071 * [toc] - rv == success, toc_kind = default_toc
2072 * [tocv] - rv == success, toc_kind = data_in_toc
2073 * [toc32] - rv == success, toc_kind = must_be_32
2074 * [toc64] - rv == success, toc_kind = must_be_64
2078 enum toc_size_qualifier
2080 default_toc
, /* The toc cell constructed should be the system default size */
2081 data_in_toc
, /* This is a direct reference to a toc cell */
2082 must_be_32
, /* The toc cell constructed must be 32 bits wide */
2083 must_be_64
/* The toc cell constructed must be 64 bits wide */
2087 parse_toc_entry (enum toc_size_qualifier
*toc_kind
)
2092 enum toc_size_qualifier t
;
2094 /* Save the input_line_pointer. */
2095 start
= input_line_pointer
;
2097 /* Skip over the '[' , and whitespace. */
2098 ++input_line_pointer
;
2101 /* Find the spelling of the operand. */
2102 toc_spec
= input_line_pointer
;
2103 c
= get_symbol_end ();
2105 if (strcmp (toc_spec
, "toc") == 0)
2109 else if (strcmp (toc_spec
, "tocv") == 0)
2113 else if (strcmp (toc_spec
, "toc32") == 0)
2117 else if (strcmp (toc_spec
, "toc64") == 0)
2123 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec
);
2124 *input_line_pointer
= c
;
2125 input_line_pointer
= start
;
2129 /* Now find the ']'. */
2130 *input_line_pointer
= c
;
2132 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2133 c
= *input_line_pointer
++; /* input_line_pointer->past char in c. */
2137 as_bad (_("syntax error: expected `]', found `%c'"), c
);
2138 input_line_pointer
= start
;
2149 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2151 ppc_apuinfo_section_add (unsigned int apu
, unsigned int version
)
2155 /* Check we don't already exist. */
2156 for (i
= 0; i
< ppc_apuinfo_num
; i
++)
2157 if (ppc_apuinfo_list
[i
] == APUID (apu
, version
))
2160 if (ppc_apuinfo_num
== ppc_apuinfo_num_alloc
)
2162 if (ppc_apuinfo_num_alloc
== 0)
2164 ppc_apuinfo_num_alloc
= 4;
2165 ppc_apuinfo_list
= (unsigned long *)
2166 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2170 ppc_apuinfo_num_alloc
+= 4;
2171 ppc_apuinfo_list
= (unsigned long *) xrealloc (ppc_apuinfo_list
,
2172 sizeof (unsigned long) * ppc_apuinfo_num_alloc
);
2175 ppc_apuinfo_list
[ppc_apuinfo_num
++] = APUID (apu
, version
);
2181 /* We need to keep a list of fixups. We can't simply generate them as
2182 we go, because that would require us to first create the frag, and
2183 that would screw up references to ``.''. */
2189 bfd_reloc_code_real_type reloc
;
2192 #define MAX_INSN_FIXUPS (5)
2194 /* This routine is called for each instruction to be assembled. */
2197 md_assemble (char *str
)
2200 const struct powerpc_opcode
*opcode
;
2202 const unsigned char *opindex_ptr
;
2206 struct ppc_fixup fixups
[MAX_INSN_FIXUPS
];
2212 bfd_reloc_code_real_type reloc
;
2215 /* Get the opcode. */
2216 for (s
= str
; *s
!= '\0' && ! ISSPACE (*s
); s
++)
2221 /* Look up the opcode in the hash table. */
2222 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, str
);
2223 if (opcode
== (const struct powerpc_opcode
*) NULL
)
2225 const struct powerpc_macro
*macro
;
2227 macro
= (const struct powerpc_macro
*) hash_find (ppc_macro_hash
, str
);
2228 if (macro
== (const struct powerpc_macro
*) NULL
)
2229 as_bad (_("Unrecognized opcode: `%s'"), str
);
2231 ppc_macro (s
, macro
);
2236 insn
= opcode
->opcode
;
2239 while (ISSPACE (*str
))
2242 /* PowerPC operands are just expressions. The only real issue is
2243 that a few operand types are optional. All cases which might use
2244 an optional operand separate the operands only with commas (in some
2245 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2246 have optional operands). Most instructions with optional operands
2247 have only one. Those that have more than one optional operand can
2248 take either all their operands or none. So, before we start seriously
2249 parsing the operands, we check to see if we have optional operands,
2250 and if we do, we count the number of commas to see which operands
2251 have been omitted. */
2253 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2255 const struct powerpc_operand
*operand
;
2257 operand
= &powerpc_operands
[*opindex_ptr
];
2258 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0)
2260 unsigned int opcount
;
2261 unsigned int num_operands_expected
;
2264 /* There is an optional operand. Count the number of
2265 commas in the input line. */
2272 while ((s
= strchr (s
, ',')) != (char *) NULL
)
2279 /* Compute the number of expected operands.
2280 Do not count fake operands. */
2281 for (num_operands_expected
= 0, i
= 0; opcode
->operands
[i
]; i
++)
2282 if ((powerpc_operands
[opcode
->operands
[i
]].flags
& PPC_OPERAND_FAKE
) == 0)
2283 ++ num_operands_expected
;
2285 /* If there are fewer operands in the line then are called
2286 for by the instruction, we want to skip the optional
2288 if (opcount
< num_operands_expected
)
2295 /* Gather the operands. */
2299 for (opindex_ptr
= opcode
->operands
; *opindex_ptr
!= 0; opindex_ptr
++)
2301 const struct powerpc_operand
*operand
;
2307 if (next_opindex
== 0)
2308 operand
= &powerpc_operands
[*opindex_ptr
];
2311 operand
= &powerpc_operands
[next_opindex
];
2316 /* If this is a fake operand, then we do not expect anything
2318 if ((operand
->flags
& PPC_OPERAND_FAKE
) != 0)
2320 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2321 if (errmsg
!= (const char *) NULL
)
2326 /* If this is an optional operand, and we are skipping it, just
2328 if ((operand
->flags
& PPC_OPERAND_OPTIONAL
) != 0
2331 if (operand
->insert
)
2333 insn
= (*operand
->insert
) (insn
, 0L, ppc_cpu
, &errmsg
);
2334 if (errmsg
!= (const char *) NULL
)
2337 if ((operand
->flags
& PPC_OPERAND_NEXT
) != 0)
2338 next_opindex
= *opindex_ptr
+ 1;
2342 /* Gather the operand. */
2343 hold
= input_line_pointer
;
2344 input_line_pointer
= str
;
2347 if (*input_line_pointer
== '[')
2349 /* We are expecting something like the second argument here:
2351 * lwz r4,[toc].GS.0.static_int(rtoc)
2352 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2353 * The argument following the `]' must be a symbol name, and the
2354 * register must be the toc register: 'rtoc' or '2'
2356 * The effect is to 0 as the displacement field
2357 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2358 * the appropriate variation) reloc against it based on the symbol.
2359 * The linker will build the toc, and insert the resolved toc offset.
2362 * o The size of the toc entry is currently assumed to be
2363 * 32 bits. This should not be assumed to be a hard coded
2365 * o In an effort to cope with a change from 32 to 64 bits,
2366 * there are also toc entries that are specified to be
2367 * either 32 or 64 bits:
2368 * lwz r4,[toc32].GS.0.static_int(rtoc)
2369 * lwz r4,[toc64].GS.0.static_int(rtoc)
2370 * These demand toc entries of the specified size, and the
2371 * instruction probably requires it.
2375 enum toc_size_qualifier toc_kind
;
2376 bfd_reloc_code_real_type toc_reloc
;
2378 /* Go parse off the [tocXX] part. */
2379 valid_toc
= parse_toc_entry (&toc_kind
);
2383 /* Note: message has already been issued.
2384 FIXME: what sort of recovery should we do?
2385 demand_rest_of_line (); return; ? */
2388 /* Now get the symbol following the ']'. */
2394 /* In this case, we may not have seen the symbol yet,
2395 since it is allowed to appear on a .extern or .globl
2396 or just be a label in the .data section. */
2397 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2400 /* 1. The symbol must be defined and either in the toc
2401 section, or a global.
2402 2. The reloc generated must have the TOCDEFN flag set
2403 in upper bit mess of the reloc type.
2404 FIXME: It's a little confusing what the tocv
2405 qualifier can be used for. At the very least, I've
2406 seen three uses, only one of which I'm sure I can
2408 if (ex
.X_op
== O_symbol
)
2410 assert (ex
.X_add_symbol
!= NULL
);
2411 if (symbol_get_bfdsym (ex
.X_add_symbol
)->section
2414 as_bad (_("[tocv] symbol is not a toc symbol"));
2418 toc_reloc
= BFD_RELOC_PPC_TOC16
;
2421 /* FIXME: these next two specifically specify 32/64 bit
2422 toc entries. We don't support them today. Is this
2423 the right way to say that? */
2424 toc_reloc
= BFD_RELOC_UNUSED
;
2425 as_bad (_("Unimplemented toc32 expression modifier"));
2428 /* FIXME: see above. */
2429 toc_reloc
= BFD_RELOC_UNUSED
;
2430 as_bad (_("Unimplemented toc64 expression modifier"));
2434 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2440 /* We need to generate a fixup for this expression. */
2441 if (fc
>= MAX_INSN_FIXUPS
)
2442 as_fatal (_("too many fixups"));
2444 fixups
[fc
].reloc
= toc_reloc
;
2445 fixups
[fc
].exp
= ex
;
2446 fixups
[fc
].opindex
= *opindex_ptr
;
2449 /* Ok. We've set up the fixup for the instruction. Now make it
2450 look like the constant 0 was found here. */
2452 ex
.X_op
= O_constant
;
2453 ex
.X_add_number
= 0;
2454 ex
.X_add_symbol
= NULL
;
2455 ex
.X_op_symbol
= NULL
;
2461 if ((reg_names_p
&& (operand
->flags
& PPC_OPERAND_CR
) != 0)
2462 || !register_name (&ex
))
2464 char save_lex
= lex_type
['%'];
2466 if ((operand
->flags
& PPC_OPERAND_CR
) != 0)
2469 lex_type
['%'] |= LEX_BEGIN_NAME
;
2473 lex_type
['%'] = save_lex
;
2477 str
= input_line_pointer
;
2478 input_line_pointer
= hold
;
2480 if (ex
.X_op
== O_illegal
)
2481 as_bad (_("illegal operand"));
2482 else if (ex
.X_op
== O_absent
)
2483 as_bad (_("missing operand"));
2484 else if (ex
.X_op
== O_register
)
2486 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2489 else if (ex
.X_op
== O_constant
)
2492 /* Allow @HA, @L, @H on constants. */
2493 char *orig_str
= str
;
2495 if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2502 case BFD_RELOC_LO16
:
2503 /* X_unsigned is the default, so if the user has done
2504 something which cleared it, we always produce a
2506 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2507 ex
.X_add_number
&= 0xffff;
2509 ex
.X_add_number
= SEX16 (ex
.X_add_number
);
2512 case BFD_RELOC_HI16
:
2513 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2514 ex
.X_add_number
= PPC_HI (ex
.X_add_number
);
2516 ex
.X_add_number
= SEX16 (PPC_HI (ex
.X_add_number
));
2519 case BFD_RELOC_HI16_S
:
2520 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2521 ex
.X_add_number
= PPC_HA (ex
.X_add_number
);
2523 ex
.X_add_number
= SEX16 (PPC_HA (ex
.X_add_number
));
2526 case BFD_RELOC_PPC64_HIGHER
:
2527 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2528 ex
.X_add_number
= PPC_HIGHER (ex
.X_add_number
);
2530 ex
.X_add_number
= SEX16 (PPC_HIGHER (ex
.X_add_number
));
2533 case BFD_RELOC_PPC64_HIGHER_S
:
2534 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2535 ex
.X_add_number
= PPC_HIGHERA (ex
.X_add_number
);
2537 ex
.X_add_number
= SEX16 (PPC_HIGHERA (ex
.X_add_number
));
2540 case BFD_RELOC_PPC64_HIGHEST
:
2541 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2542 ex
.X_add_number
= PPC_HIGHEST (ex
.X_add_number
);
2544 ex
.X_add_number
= SEX16 (PPC_HIGHEST (ex
.X_add_number
));
2547 case BFD_RELOC_PPC64_HIGHEST_S
:
2548 if (ex
.X_unsigned
&& ! (operand
->flags
& PPC_OPERAND_SIGNED
))
2549 ex
.X_add_number
= PPC_HIGHESTA (ex
.X_add_number
);
2551 ex
.X_add_number
= SEX16 (PPC_HIGHESTA (ex
.X_add_number
));
2554 #endif /* OBJ_ELF */
2555 insn
= ppc_insert_operand (insn
, operand
, ex
.X_add_number
,
2559 else if ((reloc
= ppc_elf_suffix (&str
, &ex
)) != BFD_RELOC_UNUSED
)
2561 /* Some TLS tweaks. */
2566 case BFD_RELOC_PPC_TLS
:
2567 insn
= ppc_insert_operand (insn
, operand
, ppc_obj64
? 13 : 2,
2570 /* We'll only use the 32 (or 64) bit form of these relocations
2571 in constants. Instructions get the 16 bit form. */
2572 case BFD_RELOC_PPC_DTPREL
:
2573 reloc
= BFD_RELOC_PPC_DTPREL16
;
2575 case BFD_RELOC_PPC_TPREL
:
2576 reloc
= BFD_RELOC_PPC_TPREL16
;
2580 /* For the absolute forms of branches, convert the PC
2581 relative form back into the absolute. */
2582 if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0)
2586 case BFD_RELOC_PPC_B26
:
2587 reloc
= BFD_RELOC_PPC_BA26
;
2589 case BFD_RELOC_PPC_B16
:
2590 reloc
= BFD_RELOC_PPC_BA16
;
2592 case BFD_RELOC_PPC_B16_BRTAKEN
:
2593 reloc
= BFD_RELOC_PPC_BA16_BRTAKEN
;
2595 case BFD_RELOC_PPC_B16_BRNTAKEN
:
2596 reloc
= BFD_RELOC_PPC_BA16_BRNTAKEN
;
2604 && (operand
->flags
& (PPC_OPERAND_DS
| PPC_OPERAND_DQ
)) != 0)
2609 reloc
= BFD_RELOC_PPC64_ADDR16_DS
;
2611 case BFD_RELOC_LO16
:
2612 reloc
= BFD_RELOC_PPC64_ADDR16_LO_DS
;
2614 case BFD_RELOC_16_GOTOFF
:
2615 reloc
= BFD_RELOC_PPC64_GOT16_DS
;
2617 case BFD_RELOC_LO16_GOTOFF
:
2618 reloc
= BFD_RELOC_PPC64_GOT16_LO_DS
;
2620 case BFD_RELOC_LO16_PLTOFF
:
2621 reloc
= BFD_RELOC_PPC64_PLT16_LO_DS
;
2623 case BFD_RELOC_16_BASEREL
:
2624 reloc
= BFD_RELOC_PPC64_SECTOFF_DS
;
2626 case BFD_RELOC_LO16_BASEREL
:
2627 reloc
= BFD_RELOC_PPC64_SECTOFF_LO_DS
;
2629 case BFD_RELOC_PPC_TOC16
:
2630 reloc
= BFD_RELOC_PPC64_TOC16_DS
;
2632 case BFD_RELOC_PPC64_TOC16_LO
:
2633 reloc
= BFD_RELOC_PPC64_TOC16_LO_DS
;
2635 case BFD_RELOC_PPC64_PLTGOT16
:
2636 reloc
= BFD_RELOC_PPC64_PLTGOT16_DS
;
2638 case BFD_RELOC_PPC64_PLTGOT16_LO
:
2639 reloc
= BFD_RELOC_PPC64_PLTGOT16_LO_DS
;
2641 case BFD_RELOC_PPC_DTPREL16
:
2642 reloc
= BFD_RELOC_PPC64_DTPREL16_DS
;
2644 case BFD_RELOC_PPC_DTPREL16_LO
:
2645 reloc
= BFD_RELOC_PPC64_DTPREL16_LO_DS
;
2647 case BFD_RELOC_PPC_TPREL16
:
2648 reloc
= BFD_RELOC_PPC64_TPREL16_DS
;
2650 case BFD_RELOC_PPC_TPREL16_LO
:
2651 reloc
= BFD_RELOC_PPC64_TPREL16_LO_DS
;
2653 case BFD_RELOC_PPC_GOT_DTPREL16
:
2654 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
2655 case BFD_RELOC_PPC_GOT_TPREL16
:
2656 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
2659 as_bad (_("unsupported relocation for DS offset field"));
2664 /* We need to generate a fixup for this expression. */
2665 if (fc
>= MAX_INSN_FIXUPS
)
2666 as_fatal (_("too many fixups"));
2667 fixups
[fc
].exp
= ex
;
2668 fixups
[fc
].opindex
= 0;
2669 fixups
[fc
].reloc
= reloc
;
2672 #endif /* OBJ_ELF */
2676 /* We need to generate a fixup for this expression. */
2677 if (fc
>= MAX_INSN_FIXUPS
)
2678 as_fatal (_("too many fixups"));
2679 fixups
[fc
].exp
= ex
;
2680 fixups
[fc
].opindex
= *opindex_ptr
;
2681 fixups
[fc
].reloc
= BFD_RELOC_UNUSED
;
2689 /* If expecting more operands, then we want to see "),". */
2690 if (*str
== endc
&& opindex_ptr
[1] != 0)
2694 while (ISSPACE (*str
));
2698 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0)
2706 /* The call to expression should have advanced str past any
2709 && (endc
!= ',' || *str
!= '\0'))
2711 as_bad (_("syntax error; found `%c' but expected `%c'"), *str
, endc
);
2719 while (ISSPACE (*str
))
2723 as_bad (_("junk at end of line: `%s'"), str
);
2726 /* Do we need/want a APUinfo section? */
2727 if (ppc_cpu
& (PPC_OPCODE_SPE
2728 | PPC_OPCODE_ISEL
| PPC_OPCODE_EFS
2729 | PPC_OPCODE_BRLOCK
| PPC_OPCODE_PMR
| PPC_OPCODE_CACHELCK
2730 | PPC_OPCODE_RFMCI
))
2732 /* These are all version "1". */
2733 if (opcode
->flags
& PPC_OPCODE_SPE
)
2734 ppc_apuinfo_section_add (PPC_APUINFO_SPE
, 1);
2735 if (opcode
->flags
& PPC_OPCODE_ISEL
)
2736 ppc_apuinfo_section_add (PPC_APUINFO_ISEL
, 1);
2737 if (opcode
->flags
& PPC_OPCODE_EFS
)
2738 ppc_apuinfo_section_add (PPC_APUINFO_EFS
, 1);
2739 if (opcode
->flags
& PPC_OPCODE_BRLOCK
)
2740 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK
, 1);
2741 if (opcode
->flags
& PPC_OPCODE_PMR
)
2742 ppc_apuinfo_section_add (PPC_APUINFO_PMR
, 1);
2743 if (opcode
->flags
& PPC_OPCODE_CACHELCK
)
2744 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK
, 1);
2745 if (opcode
->flags
& PPC_OPCODE_RFMCI
)
2746 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI
, 1);
2750 /* Write out the instruction. */
2752 addr_mod
= frag_now_fix () & 3;
2753 if (frag_now
->has_code
&& frag_now
->insn_addr
!= addr_mod
)
2754 as_bad (_("instruction address is not a multiple of 4"));
2755 frag_now
->insn_addr
= addr_mod
;
2756 frag_now
->has_code
= 1;
2757 md_number_to_chars (f
, insn
, 4);
2760 dwarf2_emit_insn (4);
2763 /* Create any fixups. At this point we do not use a
2764 bfd_reloc_code_real_type, but instead just use the
2765 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2766 handle fixups for any operand type, although that is admittedly
2767 not a very exciting feature. We pick a BFD reloc type in
2769 for (i
= 0; i
< fc
; i
++)
2771 const struct powerpc_operand
*operand
;
2773 operand
= &powerpc_operands
[fixups
[i
].opindex
];
2774 if (fixups
[i
].reloc
!= BFD_RELOC_UNUSED
)
2776 reloc_howto_type
*reloc_howto
;
2781 reloc_howto
= bfd_reloc_type_lookup (stdoutput
, fixups
[i
].reloc
);
2785 size
= bfd_get_reloc_size (reloc_howto
);
2786 offset
= target_big_endian
? (4 - size
) : 0;
2788 if (size
< 1 || size
> 4)
2791 fixP
= fix_new_exp (frag_now
,
2792 f
- frag_now
->fr_literal
+ offset
,
2795 reloc_howto
->pc_relative
,
2798 /* Turn off complaints that the addend is too large for things like
2800 switch (fixups
[i
].reloc
)
2802 case BFD_RELOC_16_GOTOFF
:
2803 case BFD_RELOC_PPC_TOC16
:
2804 case BFD_RELOC_LO16
:
2805 case BFD_RELOC_HI16
:
2806 case BFD_RELOC_HI16_S
:
2808 case BFD_RELOC_PPC64_HIGHER
:
2809 case BFD_RELOC_PPC64_HIGHER_S
:
2810 case BFD_RELOC_PPC64_HIGHEST
:
2811 case BFD_RELOC_PPC64_HIGHEST_S
:
2813 fixP
->fx_no_overflow
= 1;
2820 fix_new_exp (frag_now
,
2821 f
- frag_now
->fr_literal
,
2824 (operand
->flags
& PPC_OPERAND_RELATIVE
) != 0,
2825 ((bfd_reloc_code_real_type
)
2826 (fixups
[i
].opindex
+ (int) BFD_RELOC_UNUSED
)));
2830 /* Handle a macro. Gather all the operands, transform them as
2831 described by the macro, and call md_assemble recursively. All the
2832 operands are separated by commas; we don't accept parentheses
2833 around operands here. */
2836 ppc_macro (char *str
, const struct powerpc_macro
*macro
)
2847 /* Gather the users operands into the operands array. */
2852 if (count
>= sizeof operands
/ sizeof operands
[0])
2854 operands
[count
++] = s
;
2855 s
= strchr (s
, ',');
2856 if (s
== (char *) NULL
)
2861 if (count
!= macro
->operands
)
2863 as_bad (_("wrong number of operands"));
2867 /* Work out how large the string must be (the size is unbounded
2868 because it includes user input). */
2870 format
= macro
->format
;
2871 while (*format
!= '\0')
2880 arg
= strtol (format
+ 1, &send
, 10);
2881 know (send
!= format
&& arg
< count
);
2882 len
+= strlen (operands
[arg
]);
2887 /* Put the string together. */
2888 complete
= s
= (char *) alloca (len
+ 1);
2889 format
= macro
->format
;
2890 while (*format
!= '\0')
2896 arg
= strtol (format
+ 1, &send
, 10);
2897 strcpy (s
, operands
[arg
]);
2904 /* Assemble the constructed instruction. */
2905 md_assemble (complete
);
2909 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2912 ppc_section_letter (int letter
, char **ptr_msg
)
2917 *ptr_msg
= _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2922 ppc_section_word (char *str
, size_t len
)
2924 if (len
== 7 && strncmp (str
, "exclude", 7) == 0)
2931 ppc_section_type (char *str
, size_t len
)
2933 if (len
== 7 && strncmp (str
, "ordered", 7) == 0)
2940 ppc_section_flags (int flags
, int attr
, int type
)
2942 if (type
== SHT_ORDERED
)
2943 flags
|= SEC_ALLOC
| SEC_LOAD
| SEC_SORT_ENTRIES
;
2945 if (attr
& SHF_EXCLUDE
)
2946 flags
|= SEC_EXCLUDE
;
2950 #endif /* OBJ_ELF */
2953 /* Pseudo-op handling. */
2955 /* The .byte pseudo-op. This is similar to the normal .byte
2956 pseudo-op, but it can also take a single ASCII string. */
2959 ppc_byte (int ignore ATTRIBUTE_UNUSED
)
2961 if (*input_line_pointer
!= '\"')
2967 /* Gather characters. A real double quote is doubled. Unusual
2968 characters are not permitted. */
2969 ++input_line_pointer
;
2974 c
= *input_line_pointer
++;
2978 if (*input_line_pointer
!= '\"')
2980 ++input_line_pointer
;
2983 FRAG_APPEND_1_CHAR (c
);
2986 demand_empty_rest_of_line ();
2991 /* XCOFF specific pseudo-op handling. */
2993 /* This is set if we are creating a .stabx symbol, since we don't want
2994 to handle symbol suffixes for such symbols. */
2995 static bfd_boolean ppc_stab_symbol
;
2997 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2998 symbols in the .bss segment as though they were local common
2999 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3000 aligns .comm and .lcomm to 4 bytes. */
3003 ppc_comm (int lcomm
)
3005 asection
*current_seg
= now_seg
;
3006 subsegT current_subseg
= now_subseg
;
3012 symbolS
*lcomm_sym
= NULL
;
3016 name
= input_line_pointer
;
3017 endc
= get_symbol_end ();
3018 end_name
= input_line_pointer
;
3021 if (*input_line_pointer
!= ',')
3023 as_bad (_("missing size"));
3024 ignore_rest_of_line ();
3027 ++input_line_pointer
;
3029 size
= get_absolute_expression ();
3032 as_bad (_("negative size"));
3033 ignore_rest_of_line ();
3039 /* The third argument to .comm is the alignment. */
3040 if (*input_line_pointer
!= ',')
3044 ++input_line_pointer
;
3045 align
= get_absolute_expression ();
3048 as_warn (_("ignoring bad alignment"));
3063 /* The third argument to .lcomm appears to be the real local
3064 common symbol to create. References to the symbol named in
3065 the first argument are turned into references to the third
3067 if (*input_line_pointer
!= ',')
3069 as_bad (_("missing real symbol name"));
3070 ignore_rest_of_line ();
3073 ++input_line_pointer
;
3075 lcomm_name
= input_line_pointer
;
3076 lcomm_endc
= get_symbol_end ();
3078 lcomm_sym
= symbol_find_or_make (lcomm_name
);
3080 *input_line_pointer
= lcomm_endc
;
3084 sym
= symbol_find_or_make (name
);
3087 if (S_IS_DEFINED (sym
)
3088 || S_GET_VALUE (sym
) != 0)
3090 as_bad (_("attempt to redefine symbol"));
3091 ignore_rest_of_line ();
3095 record_alignment (bss_section
, align
);
3098 || ! S_IS_DEFINED (lcomm_sym
))
3107 S_SET_EXTERNAL (sym
);
3111 symbol_get_tc (lcomm_sym
)->output
= 1;
3112 def_sym
= lcomm_sym
;
3116 subseg_set (bss_section
, 1);
3117 frag_align (align
, 0, 0);
3119 symbol_set_frag (def_sym
, frag_now
);
3120 pfrag
= frag_var (rs_org
, 1, 1, (relax_substateT
) 0, def_sym
,
3121 def_size
, (char *) NULL
);
3123 S_SET_SEGMENT (def_sym
, bss_section
);
3124 symbol_get_tc (def_sym
)->align
= align
;
3128 /* Align the size of lcomm_sym. */
3129 symbol_get_frag (lcomm_sym
)->fr_offset
=
3130 ((symbol_get_frag (lcomm_sym
)->fr_offset
+ (1 << align
) - 1)
3131 &~ ((1 << align
) - 1));
3132 if (align
> symbol_get_tc (lcomm_sym
)->align
)
3133 symbol_get_tc (lcomm_sym
)->align
= align
;
3138 /* Make sym an offset from lcomm_sym. */
3139 S_SET_SEGMENT (sym
, bss_section
);
3140 symbol_set_frag (sym
, symbol_get_frag (lcomm_sym
));
3141 S_SET_VALUE (sym
, symbol_get_frag (lcomm_sym
)->fr_offset
);
3142 symbol_get_frag (lcomm_sym
)->fr_offset
+= size
;
3145 subseg_set (current_seg
, current_subseg
);
3147 demand_empty_rest_of_line ();
3150 /* The .csect pseudo-op. This switches us into a different
3151 subsegment. The first argument is a symbol whose value is the
3152 start of the .csect. In COFF, csect symbols get special aux
3153 entries defined by the x_csect field of union internal_auxent. The
3154 optional second argument is the alignment (the default is 2). */
3157 ppc_csect (int ignore ATTRIBUTE_UNUSED
)
3164 name
= input_line_pointer
;
3165 endc
= get_symbol_end ();
3167 sym
= symbol_find_or_make (name
);
3169 *input_line_pointer
= endc
;
3171 if (S_GET_NAME (sym
)[0] == '\0')
3173 /* An unnamed csect is assumed to be [PR]. */
3174 symbol_get_tc (sym
)->class = XMC_PR
;
3178 if (*input_line_pointer
== ',')
3180 ++input_line_pointer
;
3181 align
= get_absolute_expression ();
3184 ppc_change_csect (sym
, align
);
3186 demand_empty_rest_of_line ();
3189 /* Change to a different csect. */
3192 ppc_change_csect (symbolS
*sym
, offsetT align
)
3194 if (S_IS_DEFINED (sym
))
3195 subseg_set (S_GET_SEGMENT (sym
), symbol_get_tc (sym
)->subseg
);
3205 /* This is a new csect. We need to look at the symbol class to
3206 figure out whether it should go in the text section or the
3210 switch (symbol_get_tc (sym
)->class)
3220 S_SET_SEGMENT (sym
, text_section
);
3221 symbol_get_tc (sym
)->subseg
= ppc_text_subsegment
;
3222 ++ppc_text_subsegment
;
3223 list_ptr
= &ppc_text_csects
;
3233 if (ppc_toc_csect
!= NULL
3234 && (symbol_get_tc (ppc_toc_csect
)->subseg
+ 1
3235 == ppc_data_subsegment
))
3237 S_SET_SEGMENT (sym
, data_section
);
3238 symbol_get_tc (sym
)->subseg
= ppc_data_subsegment
;
3239 ++ppc_data_subsegment
;
3240 list_ptr
= &ppc_data_csects
;
3246 /* We set the obstack chunk size to a small value before
3247 changing subsegments, so that we don't use a lot of memory
3248 space for what may be a small section. */
3249 hold_chunksize
= chunksize
;
3252 sec
= subseg_new (segment_name (S_GET_SEGMENT (sym
)),
3253 symbol_get_tc (sym
)->subseg
);
3255 chunksize
= hold_chunksize
;
3258 ppc_after_toc_frag
= frag_now
;
3260 record_alignment (sec
, align
);
3262 frag_align_code (align
, 0);
3264 frag_align (align
, 0, 0);
3266 symbol_set_frag (sym
, frag_now
);
3267 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3269 symbol_get_tc (sym
)->align
= align
;
3270 symbol_get_tc (sym
)->output
= 1;
3271 symbol_get_tc (sym
)->within
= sym
;
3273 for (list
= *list_ptr
;
3274 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3275 list
= symbol_get_tc (list
)->next
)
3277 symbol_get_tc (list
)->next
= sym
;
3279 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3280 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3284 ppc_current_csect
= sym
;
3287 /* This function handles the .text and .data pseudo-ops. These
3288 pseudo-ops aren't really used by XCOFF; we implement them for the
3289 convenience of people who aren't used to XCOFF. */
3292 ppc_section (int type
)
3299 else if (type
== 'd')
3304 sym
= symbol_find_or_make (name
);
3306 ppc_change_csect (sym
, 2);
3308 demand_empty_rest_of_line ();
3311 /* This function handles the .section pseudo-op. This is mostly to
3312 give an error, since XCOFF only supports .text, .data and .bss, but
3313 we do permit the user to name the text or data section. */
3316 ppc_named_section (int ignore ATTRIBUTE_UNUSED
)
3319 const char *real_name
;
3323 user_name
= input_line_pointer
;
3324 c
= get_symbol_end ();
3326 if (strcmp (user_name
, ".text") == 0)
3327 real_name
= ".text[PR]";
3328 else if (strcmp (user_name
, ".data") == 0)
3329 real_name
= ".data[RW]";
3332 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3333 *input_line_pointer
= c
;
3334 ignore_rest_of_line ();
3338 *input_line_pointer
= c
;
3340 sym
= symbol_find_or_make (real_name
);
3342 ppc_change_csect (sym
, 2);
3344 demand_empty_rest_of_line ();
3347 /* The .extern pseudo-op. We create an undefined symbol. */
3350 ppc_extern (int ignore ATTRIBUTE_UNUSED
)
3355 name
= input_line_pointer
;
3356 endc
= get_symbol_end ();
3358 (void) symbol_find_or_make (name
);
3360 *input_line_pointer
= endc
;
3362 demand_empty_rest_of_line ();
3365 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3368 ppc_lglobl (int ignore ATTRIBUTE_UNUSED
)
3374 name
= input_line_pointer
;
3375 endc
= get_symbol_end ();
3377 sym
= symbol_find_or_make (name
);
3379 *input_line_pointer
= endc
;
3381 symbol_get_tc (sym
)->output
= 1;
3383 demand_empty_rest_of_line ();
3386 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3387 although I don't know why it bothers. */
3390 ppc_rename (int ignore ATTRIBUTE_UNUSED
)
3397 name
= input_line_pointer
;
3398 endc
= get_symbol_end ();
3400 sym
= symbol_find_or_make (name
);
3402 *input_line_pointer
= endc
;
3404 if (*input_line_pointer
!= ',')
3406 as_bad (_("missing rename string"));
3407 ignore_rest_of_line ();
3410 ++input_line_pointer
;
3412 symbol_get_tc (sym
)->real_name
= demand_copy_C_string (&len
);
3414 demand_empty_rest_of_line ();
3417 /* The .stabx pseudo-op. This is similar to a normal .stabs
3418 pseudo-op, but slightly different. A sample is
3419 .stabx "main:F-1",.main,142,0
3420 The first argument is the symbol name to create. The second is the
3421 value, and the third is the storage class. The fourth seems to be
3422 always zero, and I am assuming it is the type. */
3425 ppc_stabx (int ignore ATTRIBUTE_UNUSED
)
3432 name
= demand_copy_C_string (&len
);
3434 if (*input_line_pointer
!= ',')
3436 as_bad (_("missing value"));
3439 ++input_line_pointer
;
3441 ppc_stab_symbol
= TRUE
;
3442 sym
= symbol_make (name
);
3443 ppc_stab_symbol
= FALSE
;
3445 symbol_get_tc (sym
)->real_name
= name
;
3447 (void) expression (&exp
);
3454 as_bad (_("illegal .stabx expression; zero assumed"));
3455 exp
.X_add_number
= 0;
3458 S_SET_VALUE (sym
, (valueT
) exp
.X_add_number
);
3459 symbol_set_frag (sym
, &zero_address_frag
);
3463 if (S_GET_SEGMENT (exp
.X_add_symbol
) == undefined_section
)
3464 symbol_set_value_expression (sym
, &exp
);
3468 exp
.X_add_number
+ S_GET_VALUE (exp
.X_add_symbol
));
3469 symbol_set_frag (sym
, symbol_get_frag (exp
.X_add_symbol
));
3474 /* The value is some complex expression. This will probably
3475 fail at some later point, but this is probably the right
3476 thing to do here. */
3477 symbol_set_value_expression (sym
, &exp
);
3481 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3482 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3484 if (*input_line_pointer
!= ',')
3486 as_bad (_("missing class"));
3489 ++input_line_pointer
;
3491 S_SET_STORAGE_CLASS (sym
, get_absolute_expression ());
3493 if (*input_line_pointer
!= ',')
3495 as_bad (_("missing type"));
3498 ++input_line_pointer
;
3500 S_SET_DATA_TYPE (sym
, get_absolute_expression ());
3502 symbol_get_tc (sym
)->output
= 1;
3504 if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
) {
3506 symbol_get_tc (sym
)->within
= ppc_current_block
;
3511 .stabx "z",arrays_,133,0
3514 .comm arrays_,13768,3
3516 resolve_symbol_value will copy the exp's "within" into sym's when the
3517 offset is 0. Since this seems to be corner case problem,
3518 only do the correction for storage class C_STSYM. A better solution
3519 would be to have the tc field updated in ppc_symbol_new_hook. */
3521 if (exp
.X_op
== O_symbol
)
3523 symbol_get_tc (exp
.X_add_symbol
)->within
= ppc_current_block
;
3527 if (exp
.X_op
!= O_symbol
3528 || ! S_IS_EXTERNAL (exp
.X_add_symbol
)
3529 || S_GET_SEGMENT (exp
.X_add_symbol
) != bss_section
)
3530 ppc_frob_label (sym
);
3533 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3534 symbol_append (sym
, exp
.X_add_symbol
, &symbol_rootP
, &symbol_lastP
);
3535 if (symbol_get_tc (ppc_current_csect
)->within
== exp
.X_add_symbol
)
3536 symbol_get_tc (ppc_current_csect
)->within
= sym
;
3539 demand_empty_rest_of_line ();
3542 /* The .function pseudo-op. This takes several arguments. The first
3543 argument seems to be the external name of the symbol. The second
3544 argument seems to be the label for the start of the function. gcc
3545 uses the same name for both. I have no idea what the third and
3546 fourth arguments are meant to be. The optional fifth argument is
3547 an expression for the size of the function. In COFF this symbol
3548 gets an aux entry like that used for a csect. */
3551 ppc_function (int ignore ATTRIBUTE_UNUSED
)
3559 name
= input_line_pointer
;
3560 endc
= get_symbol_end ();
3562 /* Ignore any [PR] suffix. */
3563 name
= ppc_canonicalize_symbol_name (name
);
3564 s
= strchr (name
, '[');
3565 if (s
!= (char *) NULL
3566 && strcmp (s
+ 1, "PR]") == 0)
3569 ext_sym
= symbol_find_or_make (name
);
3571 *input_line_pointer
= endc
;
3573 if (*input_line_pointer
!= ',')
3575 as_bad (_("missing symbol name"));
3576 ignore_rest_of_line ();
3579 ++input_line_pointer
;
3581 name
= input_line_pointer
;
3582 endc
= get_symbol_end ();
3584 lab_sym
= symbol_find_or_make (name
);
3586 *input_line_pointer
= endc
;
3588 if (ext_sym
!= lab_sym
)
3592 exp
.X_op
= O_symbol
;
3593 exp
.X_add_symbol
= lab_sym
;
3594 exp
.X_op_symbol
= NULL
;
3595 exp
.X_add_number
= 0;
3597 symbol_set_value_expression (ext_sym
, &exp
);
3600 if (symbol_get_tc (ext_sym
)->class == -1)
3601 symbol_get_tc (ext_sym
)->class = XMC_PR
;
3602 symbol_get_tc (ext_sym
)->output
= 1;
3604 if (*input_line_pointer
== ',')
3608 /* Ignore the third argument. */
3609 ++input_line_pointer
;
3610 expression (&ignore
);
3611 if (*input_line_pointer
== ',')
3613 /* Ignore the fourth argument. */
3614 ++input_line_pointer
;
3615 expression (&ignore
);
3616 if (*input_line_pointer
== ',')
3618 /* The fifth argument is the function size. */
3619 ++input_line_pointer
;
3620 symbol_get_tc (ext_sym
)->size
= symbol_new ("L0\001",
3623 &zero_address_frag
);
3624 pseudo_set (symbol_get_tc (ext_sym
)->size
);
3629 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
3630 SF_SET_FUNCTION (ext_sym
);
3631 SF_SET_PROCESS (ext_sym
);
3632 coff_add_linesym (ext_sym
);
3634 demand_empty_rest_of_line ();
3637 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3638 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3639 with the correct line number */
3641 static symbolS
*saved_bi_sym
= 0;
3644 ppc_bf (int ignore ATTRIBUTE_UNUSED
)
3648 sym
= symbol_make (".bf");
3649 S_SET_SEGMENT (sym
, text_section
);
3650 symbol_set_frag (sym
, frag_now
);
3651 S_SET_VALUE (sym
, frag_now_fix ());
3652 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3654 coff_line_base
= get_absolute_expression ();
3656 S_SET_NUMBER_AUXILIARY (sym
, 1);
3657 SA_SET_SYM_LNNO (sym
, coff_line_base
);
3659 /* Line number for bi. */
3662 S_SET_VALUE (saved_bi_sym
, coff_n_line_nos
);
3667 symbol_get_tc (sym
)->output
= 1;
3669 ppc_frob_label (sym
);
3671 demand_empty_rest_of_line ();
3674 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3675 ".ef", except that the line number is absolute, not relative to the
3676 most recent ".bf" symbol. */
3679 ppc_ef (int ignore ATTRIBUTE_UNUSED
)
3683 sym
= symbol_make (".ef");
3684 S_SET_SEGMENT (sym
, text_section
);
3685 symbol_set_frag (sym
, frag_now
);
3686 S_SET_VALUE (sym
, frag_now_fix ());
3687 S_SET_STORAGE_CLASS (sym
, C_FCN
);
3688 S_SET_NUMBER_AUXILIARY (sym
, 1);
3689 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3690 symbol_get_tc (sym
)->output
= 1;
3692 ppc_frob_label (sym
);
3694 demand_empty_rest_of_line ();
3697 /* The .bi and .ei pseudo-ops. These take a string argument and
3698 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3699 the symbol list. The value of .bi will be know when the next .bf
3705 static symbolS
*last_biei
;
3712 name
= demand_copy_C_string (&len
);
3714 /* The value of these symbols is actually file offset. Here we set
3715 the value to the index into the line number entries. In
3716 ppc_frob_symbols we set the fix_line field, which will cause BFD
3717 to do the right thing. */
3719 sym
= symbol_make (name
);
3720 /* obj-coff.c currently only handles line numbers correctly in the
3722 S_SET_SEGMENT (sym
, text_section
);
3723 S_SET_VALUE (sym
, coff_n_line_nos
);
3724 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3726 S_SET_STORAGE_CLASS (sym
, ei
? C_EINCL
: C_BINCL
);
3727 symbol_get_tc (sym
)->output
= 1;
3735 for (look
= last_biei
? last_biei
: symbol_rootP
;
3736 (look
!= (symbolS
*) NULL
3737 && (S_GET_STORAGE_CLASS (look
) == C_FILE
3738 || S_GET_STORAGE_CLASS (look
) == C_BINCL
3739 || S_GET_STORAGE_CLASS (look
) == C_EINCL
));
3740 look
= symbol_next (look
))
3742 if (look
!= (symbolS
*) NULL
)
3744 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3745 symbol_insert (sym
, look
, &symbol_rootP
, &symbol_lastP
);
3749 demand_empty_rest_of_line ();
3752 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3753 There is one argument, which is a csect symbol. The value of the
3754 .bs symbol is the index of this csect symbol. */
3757 ppc_bs (int ignore ATTRIBUTE_UNUSED
)
3764 if (ppc_current_block
!= NULL
)
3765 as_bad (_("nested .bs blocks"));
3767 name
= input_line_pointer
;
3768 endc
= get_symbol_end ();
3770 csect
= symbol_find_or_make (name
);
3772 *input_line_pointer
= endc
;
3774 sym
= symbol_make (".bs");
3775 S_SET_SEGMENT (sym
, now_seg
);
3776 S_SET_STORAGE_CLASS (sym
, C_BSTAT
);
3777 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3778 symbol_get_tc (sym
)->output
= 1;
3780 symbol_get_tc (sym
)->within
= csect
;
3782 ppc_frob_label (sym
);
3784 ppc_current_block
= sym
;
3786 demand_empty_rest_of_line ();
3789 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3792 ppc_es (int ignore ATTRIBUTE_UNUSED
)
3796 if (ppc_current_block
== NULL
)
3797 as_bad (_(".es without preceding .bs"));
3799 sym
= symbol_make (".es");
3800 S_SET_SEGMENT (sym
, now_seg
);
3801 S_SET_STORAGE_CLASS (sym
, C_ESTAT
);
3802 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3803 symbol_get_tc (sym
)->output
= 1;
3805 ppc_frob_label (sym
);
3807 ppc_current_block
= NULL
;
3809 demand_empty_rest_of_line ();
3812 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3816 ppc_bb (int ignore ATTRIBUTE_UNUSED
)
3820 sym
= symbol_make (".bb");
3821 S_SET_SEGMENT (sym
, text_section
);
3822 symbol_set_frag (sym
, frag_now
);
3823 S_SET_VALUE (sym
, frag_now_fix ());
3824 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3826 S_SET_NUMBER_AUXILIARY (sym
, 1);
3827 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3829 symbol_get_tc (sym
)->output
= 1;
3831 SF_SET_PROCESS (sym
);
3833 ppc_frob_label (sym
);
3835 demand_empty_rest_of_line ();
3838 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3842 ppc_eb (int ignore ATTRIBUTE_UNUSED
)
3846 sym
= symbol_make (".eb");
3847 S_SET_SEGMENT (sym
, text_section
);
3848 symbol_set_frag (sym
, frag_now
);
3849 S_SET_VALUE (sym
, frag_now_fix ());
3850 S_SET_STORAGE_CLASS (sym
, C_BLOCK
);
3851 S_SET_NUMBER_AUXILIARY (sym
, 1);
3852 SA_SET_SYM_LNNO (sym
, get_absolute_expression ());
3853 symbol_get_tc (sym
)->output
= 1;
3855 SF_SET_PROCESS (sym
);
3857 ppc_frob_label (sym
);
3859 demand_empty_rest_of_line ();
3862 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3866 ppc_bc (int ignore ATTRIBUTE_UNUSED
)
3872 name
= demand_copy_C_string (&len
);
3873 sym
= symbol_make (name
);
3874 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3875 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3876 S_SET_STORAGE_CLASS (sym
, C_BCOMM
);
3877 S_SET_VALUE (sym
, 0);
3878 symbol_get_tc (sym
)->output
= 1;
3880 ppc_frob_label (sym
);
3882 demand_empty_rest_of_line ();
3885 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3888 ppc_ec (int ignore ATTRIBUTE_UNUSED
)
3892 sym
= symbol_make (".ec");
3893 S_SET_SEGMENT (sym
, ppc_coff_debug_section
);
3894 symbol_get_bfdsym (sym
)->flags
|= BSF_DEBUGGING
;
3895 S_SET_STORAGE_CLASS (sym
, C_ECOMM
);
3896 S_SET_VALUE (sym
, 0);
3897 symbol_get_tc (sym
)->output
= 1;
3899 ppc_frob_label (sym
);
3901 demand_empty_rest_of_line ();
3904 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3907 ppc_toc (int ignore ATTRIBUTE_UNUSED
)
3909 if (ppc_toc_csect
!= (symbolS
*) NULL
)
3910 subseg_set (data_section
, symbol_get_tc (ppc_toc_csect
)->subseg
);
3917 subseg
= ppc_data_subsegment
;
3918 ++ppc_data_subsegment
;
3920 subseg_new (segment_name (data_section
), subseg
);
3921 ppc_toc_frag
= frag_now
;
3923 sym
= symbol_find_or_make ("TOC[TC0]");
3924 symbol_set_frag (sym
, frag_now
);
3925 S_SET_SEGMENT (sym
, data_section
);
3926 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
3927 symbol_get_tc (sym
)->subseg
= subseg
;
3928 symbol_get_tc (sym
)->output
= 1;
3929 symbol_get_tc (sym
)->within
= sym
;
3931 ppc_toc_csect
= sym
;
3933 for (list
= ppc_data_csects
;
3934 symbol_get_tc (list
)->next
!= (symbolS
*) NULL
;
3935 list
= symbol_get_tc (list
)->next
)
3937 symbol_get_tc (list
)->next
= sym
;
3939 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
3940 symbol_append (sym
, symbol_get_tc (list
)->within
, &symbol_rootP
,
3944 ppc_current_csect
= ppc_toc_csect
;
3946 demand_empty_rest_of_line ();
3949 /* The AIX assembler automatically aligns the operands of a .long or
3950 .short pseudo-op, and we want to be compatible. */
3953 ppc_xcoff_cons (int log_size
)
3955 frag_align (log_size
, 0, 0);
3956 record_alignment (now_seg
, log_size
);
3957 cons (1 << log_size
);
3961 ppc_vbyte (int dummy ATTRIBUTE_UNUSED
)
3966 (void) expression (&exp
);
3968 if (exp
.X_op
!= O_constant
)
3970 as_bad (_("non-constant byte count"));
3974 byte_count
= exp
.X_add_number
;
3976 if (*input_line_pointer
!= ',')
3978 as_bad (_("missing value"));
3982 ++input_line_pointer
;
3986 #endif /* OBJ_XCOFF */
3987 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3989 /* The .tc pseudo-op. This is used when generating either XCOFF or
3990 ELF. This takes two or more arguments.
3992 When generating XCOFF output, the first argument is the name to
3993 give to this location in the toc; this will be a symbol with class
3994 TC. The rest of the arguments are N-byte values to actually put at
3995 this location in the TOC; often there is just one more argument, a
3996 relocatable symbol reference. The size of the value to store
3997 depends on target word size. A 32-bit target uses 4-byte values, a
3998 64-bit target uses 8-byte values.
4000 When not generating XCOFF output, the arguments are the same, but
4001 the first argument is simply ignored. */
4004 ppc_tc (int ignore ATTRIBUTE_UNUSED
)
4008 /* Define the TOC symbol name. */
4014 if (ppc_toc_csect
== (symbolS
*) NULL
4015 || ppc_toc_csect
!= ppc_current_csect
)
4017 as_bad (_(".tc not in .toc section"));
4018 ignore_rest_of_line ();
4022 name
= input_line_pointer
;
4023 endc
= get_symbol_end ();
4025 sym
= symbol_find_or_make (name
);
4027 *input_line_pointer
= endc
;
4029 if (S_IS_DEFINED (sym
))
4033 label
= symbol_get_tc (ppc_current_csect
)->within
;
4034 if (symbol_get_tc (label
)->class != XMC_TC0
)
4036 as_bad (_(".tc with no label"));
4037 ignore_rest_of_line ();
4041 S_SET_SEGMENT (label
, S_GET_SEGMENT (sym
));
4042 symbol_set_frag (label
, symbol_get_frag (sym
));
4043 S_SET_VALUE (label
, S_GET_VALUE (sym
));
4045 while (! is_end_of_line
[(unsigned char) *input_line_pointer
])
4046 ++input_line_pointer
;
4051 S_SET_SEGMENT (sym
, now_seg
);
4052 symbol_set_frag (sym
, frag_now
);
4053 S_SET_VALUE (sym
, (valueT
) frag_now_fix ());
4054 symbol_get_tc (sym
)->class = XMC_TC
;
4055 symbol_get_tc (sym
)->output
= 1;
4057 ppc_frob_label (sym
);
4060 #endif /* OBJ_XCOFF */
4064 /* Skip the TOC symbol name. */
4065 while (is_part_of_name (*input_line_pointer
)
4066 || *input_line_pointer
== ' '
4067 || *input_line_pointer
== '['
4068 || *input_line_pointer
== ']'
4069 || *input_line_pointer
== '{'
4070 || *input_line_pointer
== '}')
4071 ++input_line_pointer
;
4073 /* Align to a four/eight byte boundary. */
4074 align
= ppc_obj64
? 3 : 2;
4075 frag_align (align
, 0, 0);
4076 record_alignment (now_seg
, align
);
4077 #endif /* OBJ_ELF */
4079 if (*input_line_pointer
!= ',')
4080 demand_empty_rest_of_line ();
4083 ++input_line_pointer
;
4084 cons (ppc_obj64
? 8 : 4);
4088 /* Pseudo-op .machine. */
4091 ppc_machine (int ignore ATTRIBUTE_UNUSED
)
4094 #define MAX_HISTORY 100
4095 static unsigned long *cpu_history
;
4096 static int curr_hist
;
4100 if (*input_line_pointer
== '"')
4103 cpu_string
= demand_copy_C_string (&len
);
4108 cpu_string
= input_line_pointer
;
4109 c
= get_symbol_end ();
4110 cpu_string
= xstrdup (cpu_string
);
4111 *input_line_pointer
= c
;
4114 if (cpu_string
!= NULL
)
4116 unsigned long old_cpu
= ppc_cpu
;
4119 for (p
= cpu_string
; *p
!= 0; p
++)
4122 if (strcmp (cpu_string
, "push") == 0)
4124 if (cpu_history
== NULL
)
4125 cpu_history
= xmalloc (MAX_HISTORY
* sizeof (*cpu_history
));
4127 if (curr_hist
>= MAX_HISTORY
)
4128 as_bad (_(".machine stack overflow"));
4130 cpu_history
[curr_hist
++] = ppc_cpu
;
4132 else if (strcmp (cpu_string
, "pop") == 0)
4135 as_bad (_(".machine stack underflow"));
4137 ppc_cpu
= cpu_history
[--curr_hist
];
4139 else if (parse_cpu (cpu_string
))
4142 as_bad (_("invalid machine `%s'"), cpu_string
);
4144 if (ppc_cpu
!= old_cpu
)
4145 ppc_setup_opcodes ();
4148 demand_empty_rest_of_line ();
4151 /* See whether a symbol is in the TOC section. */
4154 ppc_is_toc_sym (symbolS
*sym
)
4157 return symbol_get_tc (sym
)->class == XMC_TC
;
4160 const char *sname
= segment_name (S_GET_SEGMENT (sym
));
4162 return strcmp (sname
, ".toc") == 0;
4164 return strcmp (sname
, ".got") == 0;
4167 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4171 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4173 /* Set the current section. */
4175 ppc_set_current_section (segT
new)
4177 ppc_previous_section
= ppc_current_section
;
4178 ppc_current_section
= new;
4181 /* pseudo-op: .previous
4182 behaviour: toggles the current section with the previous section.
4184 warnings: "No previous section" */
4187 ppc_previous (int ignore ATTRIBUTE_UNUSED
)
4191 if (ppc_previous_section
== NULL
)
4193 as_warn (_("No previous section to return to. Directive ignored."));
4197 subseg_set (ppc_previous_section
, 0);
4199 ppc_set_current_section (ppc_previous_section
);
4202 /* pseudo-op: .pdata
4203 behaviour: predefined read only data section
4207 initial: .section .pdata "adr3"
4208 a - don't know -- maybe a misprint
4209 d - initialized data
4211 3 - double word aligned (that would be 4 byte boundary)
4214 Tag index tables (also known as the function table) for exception
4215 handling, debugging, etc. */
4218 ppc_pdata (int ignore ATTRIBUTE_UNUSED
)
4220 if (pdata_section
== 0)
4222 pdata_section
= subseg_new (".pdata", 0);
4224 bfd_set_section_flags (stdoutput
, pdata_section
,
4225 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4226 | SEC_READONLY
| SEC_DATA
));
4228 bfd_set_section_alignment (stdoutput
, pdata_section
, 2);
4232 pdata_section
= subseg_new (".pdata", 0);
4234 ppc_set_current_section (pdata_section
);
4237 /* pseudo-op: .ydata
4238 behaviour: predefined read only data section
4242 initial: .section .ydata "drw3"
4243 a - don't know -- maybe a misprint
4244 d - initialized data
4246 3 - double word aligned (that would be 4 byte boundary)
4248 Tag tables (also known as the scope table) for exception handling,
4252 ppc_ydata (int ignore ATTRIBUTE_UNUSED
)
4254 if (ydata_section
== 0)
4256 ydata_section
= subseg_new (".ydata", 0);
4257 bfd_set_section_flags (stdoutput
, ydata_section
,
4258 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4259 | SEC_READONLY
| SEC_DATA
));
4261 bfd_set_section_alignment (stdoutput
, ydata_section
, 3);
4265 ydata_section
= subseg_new (".ydata", 0);
4267 ppc_set_current_section (ydata_section
);
4270 /* pseudo-op: .reldata
4271 behaviour: predefined read write data section
4272 double word aligned (4-byte)
4273 FIXME: relocation is applied to it
4274 FIXME: what's the difference between this and .data?
4277 initial: .section .reldata "drw3"
4278 d - initialized data
4281 3 - double word aligned (that would be 8 byte boundary)
4284 Like .data, but intended to hold data subject to relocation, such as
4285 function descriptors, etc. */
4288 ppc_reldata (int ignore ATTRIBUTE_UNUSED
)
4290 if (reldata_section
== 0)
4292 reldata_section
= subseg_new (".reldata", 0);
4294 bfd_set_section_flags (stdoutput
, reldata_section
,
4295 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4298 bfd_set_section_alignment (stdoutput
, reldata_section
, 2);
4302 reldata_section
= subseg_new (".reldata", 0);
4304 ppc_set_current_section (reldata_section
);
4307 /* pseudo-op: .rdata
4308 behaviour: predefined read only data section
4312 initial: .section .rdata "dr3"
4313 d - initialized data
4315 3 - double word aligned (that would be 4 byte boundary) */
4318 ppc_rdata (int ignore ATTRIBUTE_UNUSED
)
4320 if (rdata_section
== 0)
4322 rdata_section
= subseg_new (".rdata", 0);
4323 bfd_set_section_flags (stdoutput
, rdata_section
,
4324 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4325 | SEC_READONLY
| SEC_DATA
));
4327 bfd_set_section_alignment (stdoutput
, rdata_section
, 2);
4331 rdata_section
= subseg_new (".rdata", 0);
4333 ppc_set_current_section (rdata_section
);
4336 /* pseudo-op: .ualong
4337 behaviour: much like .int, with the exception that no alignment is
4339 FIXME: test the alignment statement
4344 ppc_ualong (int ignore ATTRIBUTE_UNUSED
)
4350 /* pseudo-op: .znop <symbol name>
4351 behaviour: Issue a nop instruction
4352 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4353 the supplied symbol name.
4355 warnings: Missing symbol name */
4358 ppc_znop (int ignore ATTRIBUTE_UNUSED
)
4361 const struct powerpc_opcode
*opcode
;
4372 /* Strip out the symbol name. */
4373 symbol_name
= input_line_pointer
;
4374 c
= get_symbol_end ();
4376 name
= xmalloc (input_line_pointer
- symbol_name
+ 1);
4377 strcpy (name
, symbol_name
);
4379 sym
= symbol_find_or_make (name
);
4381 *input_line_pointer
= c
;
4385 /* Look up the opcode in the hash table. */
4386 opcode
= (const struct powerpc_opcode
*) hash_find (ppc_hash
, "nop");
4388 /* Stick in the nop. */
4389 insn
= opcode
->opcode
;
4391 /* Write out the instruction. */
4393 md_number_to_chars (f
, insn
, 4);
4395 f
- frag_now
->fr_literal
,
4400 BFD_RELOC_16_GOT_PCREL
);
4410 ppc_pe_comm (int lcomm
)
4419 name
= input_line_pointer
;
4420 c
= get_symbol_end ();
4422 /* just after name is now '\0'. */
4423 p
= input_line_pointer
;
4426 if (*input_line_pointer
!= ',')
4428 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4429 ignore_rest_of_line ();
4433 input_line_pointer
++; /* skip ',' */
4434 if ((temp
= get_absolute_expression ()) < 0)
4436 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp
);
4437 ignore_rest_of_line ();
4443 /* The third argument to .comm is the alignment. */
4444 if (*input_line_pointer
!= ',')
4448 ++input_line_pointer
;
4449 align
= get_absolute_expression ();
4452 as_warn (_("ignoring bad alignment"));
4459 symbolP
= symbol_find_or_make (name
);
4462 if (S_IS_DEFINED (symbolP
) && ! S_IS_COMMON (symbolP
))
4464 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4465 S_GET_NAME (symbolP
));
4466 ignore_rest_of_line ();
4470 if (S_GET_VALUE (symbolP
))
4472 if (S_GET_VALUE (symbolP
) != (valueT
) temp
)
4473 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4474 S_GET_NAME (symbolP
),
4475 (long) S_GET_VALUE (symbolP
),
4480 S_SET_VALUE (symbolP
, (valueT
) temp
);
4481 S_SET_EXTERNAL (symbolP
);
4482 S_SET_SEGMENT (symbolP
, bfd_com_section_ptr
);
4485 demand_empty_rest_of_line ();
4489 * implement the .section pseudo op:
4490 * .section name {, "flags"}
4492 * | +--- optional flags: 'b' for bss
4494 * +-- section name 'l' for lib
4498 * 'd' (apparently m88k for data)
4500 * But if the argument is not a quoted string, treat it as a
4501 * subsegment number.
4503 * FIXME: this is a copy of the section processing from obj-coff.c, with
4504 * additions/changes for the moto-pas assembler support. There are three
4507 * FIXME: I just noticed this. This doesn't work at all really. It it
4508 * setting bits that bfd probably neither understands or uses. The
4509 * correct approach (?) will have to incorporate extra fields attached
4510 * to the section to hold the system specific stuff. (krk)
4513 * 'a' - unknown - referred to in documentation, but no definition supplied
4514 * 'c' - section has code
4515 * 'd' - section has initialized data
4516 * 'u' - section has uninitialized data
4517 * 'i' - section contains directives (info)
4518 * 'n' - section can be discarded
4519 * 'R' - remove section at link time
4521 * Section Protection:
4522 * 'r' - section is readable
4523 * 'w' - section is writeable
4524 * 'x' - section is executable
4525 * 's' - section is sharable
4527 * Section Alignment:
4528 * '0' - align to byte boundary
4529 * '1' - align to halfword undary
4530 * '2' - align to word boundary
4531 * '3' - align to doubleword boundary
4532 * '4' - align to quadword boundary
4533 * '5' - align to 32 byte boundary
4534 * '6' - align to 64 byte boundary
4539 ppc_pe_section (int ignore ATTRIBUTE_UNUSED
)
4541 /* Strip out the section name. */
4550 section_name
= input_line_pointer
;
4551 c
= get_symbol_end ();
4553 name
= xmalloc (input_line_pointer
- section_name
+ 1);
4554 strcpy (name
, section_name
);
4556 *input_line_pointer
= c
;
4561 flags
= SEC_NO_FLAGS
;
4563 if (strcmp (name
, ".idata$2") == 0)
4567 else if (strcmp (name
, ".idata$3") == 0)
4571 else if (strcmp (name
, ".idata$4") == 0)
4575 else if (strcmp (name
, ".idata$5") == 0)
4579 else if (strcmp (name
, ".idata$6") == 0)
4584 /* Default alignment to 16 byte boundary. */
4587 if (*input_line_pointer
== ',')
4589 ++input_line_pointer
;
4591 if (*input_line_pointer
!= '"')
4592 exp
= get_absolute_expression ();
4595 ++input_line_pointer
;
4596 while (*input_line_pointer
!= '"'
4597 && ! is_end_of_line
[(unsigned char) *input_line_pointer
])
4599 switch (*input_line_pointer
)
4601 /* Section Contents */
4602 case 'a': /* unknown */
4603 as_bad (_("Unsupported section attribute -- 'a'"));
4605 case 'c': /* code section */
4608 case 'd': /* section has initialized data */
4611 case 'u': /* section has uninitialized data */
4612 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4616 case 'i': /* section contains directives (info) */
4617 /* FIXME: This is IMAGE_SCN_LNK_INFO
4619 flags
|= SEC_HAS_CONTENTS
;
4621 case 'n': /* section can be discarded */
4624 case 'R': /* Remove section at link time */
4625 flags
|= SEC_NEVER_LOAD
;
4627 #if IFLICT_BRAIN_DAMAGE
4628 /* Section Protection */
4629 case 'r': /* section is readable */
4630 flags
|= IMAGE_SCN_MEM_READ
;
4632 case 'w': /* section is writeable */
4633 flags
|= IMAGE_SCN_MEM_WRITE
;
4635 case 'x': /* section is executable */
4636 flags
|= IMAGE_SCN_MEM_EXECUTE
;
4638 case 's': /* section is sharable */
4639 flags
|= IMAGE_SCN_MEM_SHARED
;
4642 /* Section Alignment */
4643 case '0': /* align to byte boundary */
4644 flags
|= IMAGE_SCN_ALIGN_1BYTES
;
4647 case '1': /* align to halfword boundary */
4648 flags
|= IMAGE_SCN_ALIGN_2BYTES
;
4651 case '2': /* align to word boundary */
4652 flags
|= IMAGE_SCN_ALIGN_4BYTES
;
4655 case '3': /* align to doubleword boundary */
4656 flags
|= IMAGE_SCN_ALIGN_8BYTES
;
4659 case '4': /* align to quadword boundary */
4660 flags
|= IMAGE_SCN_ALIGN_16BYTES
;
4663 case '5': /* align to 32 byte boundary */
4664 flags
|= IMAGE_SCN_ALIGN_32BYTES
;
4667 case '6': /* align to 64 byte boundary */
4668 flags
|= IMAGE_SCN_ALIGN_64BYTES
;
4673 as_bad (_("unknown section attribute '%c'"),
4674 *input_line_pointer
);
4677 ++input_line_pointer
;
4679 if (*input_line_pointer
== '"')
4680 ++input_line_pointer
;
4684 sec
= subseg_new (name
, (subsegT
) exp
);
4686 ppc_set_current_section (sec
);
4688 if (flags
!= SEC_NO_FLAGS
)
4690 if (! bfd_set_section_flags (stdoutput
, sec
, flags
))
4691 as_bad (_("error setting flags for \"%s\": %s"),
4692 bfd_section_name (stdoutput
, sec
),
4693 bfd_errmsg (bfd_get_error ()));
4696 bfd_set_section_alignment (stdoutput
, sec
, align
);
4700 ppc_pe_function (int ignore ATTRIBUTE_UNUSED
)
4706 name
= input_line_pointer
;
4707 endc
= get_symbol_end ();
4709 ext_sym
= symbol_find_or_make (name
);
4711 *input_line_pointer
= endc
;
4713 S_SET_DATA_TYPE (ext_sym
, DT_FCN
<< N_BTSHFT
);
4714 SF_SET_FUNCTION (ext_sym
);
4715 SF_SET_PROCESS (ext_sym
);
4716 coff_add_linesym (ext_sym
);
4718 demand_empty_rest_of_line ();
4722 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED
)
4724 if (tocdata_section
== 0)
4726 tocdata_section
= subseg_new (".tocd", 0);
4727 /* FIXME: section flags won't work. */
4728 bfd_set_section_flags (stdoutput
, tocdata_section
,
4729 (SEC_ALLOC
| SEC_LOAD
| SEC_RELOC
4730 | SEC_READONLY
| SEC_DATA
));
4732 bfd_set_section_alignment (stdoutput
, tocdata_section
, 2);
4736 rdata_section
= subseg_new (".tocd", 0);
4739 ppc_set_current_section (tocdata_section
);
4741 demand_empty_rest_of_line ();
4744 /* Don't adjust TOC relocs to use the section symbol. */
4747 ppc_pe_fix_adjustable (fixS
*fix
)
4749 return fix
->fx_r_type
!= BFD_RELOC_PPC_TOC16
;
4756 /* XCOFF specific symbol and file handling. */
4758 /* Canonicalize the symbol name. We use the to force the suffix, if
4759 any, to use square brackets, and to be in upper case. */
4762 ppc_canonicalize_symbol_name (char *name
)
4766 if (ppc_stab_symbol
)
4769 for (s
= name
; *s
!= '\0' && *s
!= '{' && *s
!= '['; s
++)
4783 for (s
++; *s
!= '\0' && *s
!= brac
; s
++)
4786 if (*s
== '\0' || s
[1] != '\0')
4787 as_bad (_("bad symbol suffix"));
4795 /* Set the class of a symbol based on the suffix, if any. This is
4796 called whenever a new symbol is created. */
4799 ppc_symbol_new_hook (symbolS
*sym
)
4801 struct ppc_tc_sy
*tc
;
4804 tc
= symbol_get_tc (sym
);
4808 tc
->real_name
= NULL
;
4814 if (ppc_stab_symbol
)
4817 s
= strchr (S_GET_NAME (sym
), '[');
4818 if (s
== (const char *) NULL
)
4820 /* There is no suffix. */
4829 if (strcmp (s
, "BS]") == 0)
4833 if (strcmp (s
, "DB]") == 0)
4835 else if (strcmp (s
, "DS]") == 0)
4839 if (strcmp (s
, "GL]") == 0)
4843 if (strcmp (s
, "PR]") == 0)
4847 if (strcmp (s
, "RO]") == 0)
4849 else if (strcmp (s
, "RW]") == 0)
4853 if (strcmp (s
, "SV]") == 0)
4857 if (strcmp (s
, "TC]") == 0)
4859 else if (strcmp (s
, "TI]") == 0)
4861 else if (strcmp (s
, "TB]") == 0)
4863 else if (strcmp (s
, "TC0]") == 0 || strcmp (s
, "T0]") == 0)
4864 tc
->class = XMC_TC0
;
4867 if (strcmp (s
, "UA]") == 0)
4869 else if (strcmp (s
, "UC]") == 0)
4873 if (strcmp (s
, "XO]") == 0)
4878 if (tc
->class == -1)
4879 as_bad (_("Unrecognized symbol suffix"));
4882 /* Set the class of a label based on where it is defined. This
4883 handles symbols without suffixes. Also, move the symbol so that it
4884 follows the csect symbol. */
4887 ppc_frob_label (symbolS
*sym
)
4889 if (ppc_current_csect
!= (symbolS
*) NULL
)
4891 if (symbol_get_tc (sym
)->class == -1)
4892 symbol_get_tc (sym
)->class = symbol_get_tc (ppc_current_csect
)->class;
4894 symbol_remove (sym
, &symbol_rootP
, &symbol_lastP
);
4895 symbol_append (sym
, symbol_get_tc (ppc_current_csect
)->within
,
4896 &symbol_rootP
, &symbol_lastP
);
4897 symbol_get_tc (ppc_current_csect
)->within
= sym
;
4901 dwarf2_emit_label (sym
);
4905 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4906 seen. It tells ppc_adjust_symtab whether it needs to look through
4909 static bfd_boolean ppc_saw_abs
;
4911 /* Change the name of a symbol just before writing it out. Set the
4912 real name if the .rename pseudo-op was used. Otherwise, remove any
4913 class suffix. Return 1 if the symbol should not be included in the
4917 ppc_frob_symbol (symbolS
*sym
)
4919 static symbolS
*ppc_last_function
;
4920 static symbolS
*set_end
;
4922 /* Discard symbols that should not be included in the output symbol
4924 if (! symbol_used_in_reloc_p (sym
)
4925 && ((symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) != 0
4926 || (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4927 && ! symbol_get_tc (sym
)->output
4928 && S_GET_STORAGE_CLASS (sym
) != C_FILE
)))
4931 /* This one will disappear anyway. Don't make a csect sym for it. */
4932 if (sym
== abs_section_sym
)
4935 if (symbol_get_tc (sym
)->real_name
!= (char *) NULL
)
4936 S_SET_NAME (sym
, symbol_get_tc (sym
)->real_name
);
4942 name
= S_GET_NAME (sym
);
4943 s
= strchr (name
, '[');
4944 if (s
!= (char *) NULL
)
4950 snew
= xmalloc (len
+ 1);
4951 memcpy (snew
, name
, len
);
4954 S_SET_NAME (sym
, snew
);
4958 if (set_end
!= (symbolS
*) NULL
)
4960 SA_SET_SYM_ENDNDX (set_end
, sym
);
4964 if (SF_GET_FUNCTION (sym
))
4966 if (ppc_last_function
!= (symbolS
*) NULL
)
4967 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4968 ppc_last_function
= sym
;
4969 if (symbol_get_tc (sym
)->size
!= (symbolS
*) NULL
)
4971 resolve_symbol_value (symbol_get_tc (sym
)->size
);
4972 SA_SET_SYM_FSIZE (sym
,
4973 (long) S_GET_VALUE (symbol_get_tc (sym
)->size
));
4976 else if (S_GET_STORAGE_CLASS (sym
) == C_FCN
4977 && strcmp (S_GET_NAME (sym
), ".ef") == 0)
4979 if (ppc_last_function
== (symbolS
*) NULL
)
4980 as_bad (_(".ef with no preceding .function"));
4983 set_end
= ppc_last_function
;
4984 ppc_last_function
= NULL
;
4986 /* We don't have a C_EFCN symbol, but we need to force the
4987 COFF backend to believe that it has seen one. */
4988 coff_last_function
= NULL
;
4992 if (! (S_IS_EXTERNAL (sym
) || S_IS_WEAK (sym
))
4993 && (symbol_get_bfdsym (sym
)->flags
& BSF_SECTION_SYM
) == 0
4994 && S_GET_STORAGE_CLASS (sym
) != C_FILE
4995 && S_GET_STORAGE_CLASS (sym
) != C_FCN
4996 && S_GET_STORAGE_CLASS (sym
) != C_BLOCK
4997 && S_GET_STORAGE_CLASS (sym
) != C_BSTAT
4998 && S_GET_STORAGE_CLASS (sym
) != C_ESTAT
4999 && S_GET_STORAGE_CLASS (sym
) != C_BINCL
5000 && S_GET_STORAGE_CLASS (sym
) != C_EINCL
5001 && S_GET_SEGMENT (sym
) != ppc_coff_debug_section
)
5002 S_SET_STORAGE_CLASS (sym
, C_HIDEXT
);
5004 if (S_GET_STORAGE_CLASS (sym
) == C_EXT
5005 || S_GET_STORAGE_CLASS (sym
) == C_HIDEXT
)
5008 union internal_auxent
*a
;
5010 /* Create a csect aux. */
5011 i
= S_GET_NUMBER_AUXILIARY (sym
);
5012 S_SET_NUMBER_AUXILIARY (sym
, i
+ 1);
5013 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].u
.auxent
;
5014 if (symbol_get_tc (sym
)->class == XMC_TC0
)
5016 /* This is the TOC table. */
5017 know (strcmp (S_GET_NAME (sym
), "TOC") == 0);
5018 a
->x_csect
.x_scnlen
.l
= 0;
5019 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5021 else if (symbol_get_tc (sym
)->subseg
!= 0)
5023 /* This is a csect symbol. x_scnlen is the size of the
5025 if (symbol_get_tc (sym
)->next
== (symbolS
*) NULL
)
5026 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5027 S_GET_SEGMENT (sym
))
5028 - S_GET_VALUE (sym
));
5031 resolve_symbol_value (symbol_get_tc (sym
)->next
);
5032 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (symbol_get_tc (sym
)->next
)
5033 - S_GET_VALUE (sym
));
5035 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_SD
;
5037 else if (S_GET_SEGMENT (sym
) == bss_section
)
5039 /* This is a common symbol. */
5040 a
->x_csect
.x_scnlen
.l
= symbol_get_frag (sym
)->fr_offset
;
5041 a
->x_csect
.x_smtyp
= (symbol_get_tc (sym
)->align
<< 3) | XTY_CM
;
5042 if (S_IS_EXTERNAL (sym
))
5043 symbol_get_tc (sym
)->class = XMC_RW
;
5045 symbol_get_tc (sym
)->class = XMC_BS
;
5047 else if (S_GET_SEGMENT (sym
) == absolute_section
)
5049 /* This is an absolute symbol. The csect will be created by
5050 ppc_adjust_symtab. */
5052 a
->x_csect
.x_smtyp
= XTY_LD
;
5053 if (symbol_get_tc (sym
)->class == -1)
5054 symbol_get_tc (sym
)->class = XMC_XO
;
5056 else if (! S_IS_DEFINED (sym
))
5058 /* This is an external symbol. */
5059 a
->x_csect
.x_scnlen
.l
= 0;
5060 a
->x_csect
.x_smtyp
= XTY_ER
;
5062 else if (symbol_get_tc (sym
)->class == XMC_TC
)
5066 /* This is a TOC definition. x_scnlen is the size of the
5068 next
= symbol_next (sym
);
5069 while (symbol_get_tc (next
)->class == XMC_TC0
)
5070 next
= symbol_next (next
);
5071 if (next
== (symbolS
*) NULL
5072 || symbol_get_tc (next
)->class != XMC_TC
)
5074 if (ppc_after_toc_frag
== (fragS
*) NULL
)
5075 a
->x_csect
.x_scnlen
.l
= (bfd_section_size (stdoutput
,
5077 - S_GET_VALUE (sym
));
5079 a
->x_csect
.x_scnlen
.l
= (ppc_after_toc_frag
->fr_address
5080 - S_GET_VALUE (sym
));
5084 resolve_symbol_value (next
);
5085 a
->x_csect
.x_scnlen
.l
= (S_GET_VALUE (next
)
5086 - S_GET_VALUE (sym
));
5088 a
->x_csect
.x_smtyp
= (2 << 3) | XTY_SD
;
5094 /* This is a normal symbol definition. x_scnlen is the
5095 symbol index of the containing csect. */
5096 if (S_GET_SEGMENT (sym
) == text_section
)
5097 csect
= ppc_text_csects
;
5098 else if (S_GET_SEGMENT (sym
) == data_section
)
5099 csect
= ppc_data_csects
;
5103 /* Skip the initial dummy symbol. */
5104 csect
= symbol_get_tc (csect
)->next
;
5106 if (csect
== (symbolS
*) NULL
)
5108 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym
));
5109 a
->x_csect
.x_scnlen
.l
= 0;
5113 while (symbol_get_tc (csect
)->next
!= (symbolS
*) NULL
)
5115 resolve_symbol_value (symbol_get_tc (csect
)->next
);
5116 if (S_GET_VALUE (symbol_get_tc (csect
)->next
)
5117 > S_GET_VALUE (sym
))
5119 csect
= symbol_get_tc (csect
)->next
;
5122 a
->x_csect
.x_scnlen
.p
=
5123 coffsymbol (symbol_get_bfdsym (csect
))->native
;
5124 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
+ 1].fix_scnlen
=
5127 a
->x_csect
.x_smtyp
= XTY_LD
;
5130 a
->x_csect
.x_parmhash
= 0;
5131 a
->x_csect
.x_snhash
= 0;
5132 if (symbol_get_tc (sym
)->class == -1)
5133 a
->x_csect
.x_smclas
= XMC_PR
;
5135 a
->x_csect
.x_smclas
= symbol_get_tc (sym
)->class;
5136 a
->x_csect
.x_stab
= 0;
5137 a
->x_csect
.x_snstab
= 0;
5139 /* Don't let the COFF backend resort these symbols. */
5140 symbol_get_bfdsym (sym
)->flags
|= BSF_NOT_AT_END
;
5142 else if (S_GET_STORAGE_CLASS (sym
) == C_BSTAT
)
5144 /* We want the value to be the symbol index of the referenced
5145 csect symbol. BFD will do that for us if we set the right
5147 asymbol
*bsym
= symbol_get_bfdsym (symbol_get_tc (sym
)->within
);
5148 combined_entry_type
*c
= coffsymbol (bsym
)->native
;
5150 S_SET_VALUE (sym
, (valueT
) (size_t) c
);
5151 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_value
= 1;
5153 else if (S_GET_STORAGE_CLASS (sym
) == C_STSYM
)
5158 /* The value is the offset from the enclosing csect. */
5159 block
= symbol_get_tc (sym
)->within
;
5160 csect
= symbol_get_tc (block
)->within
;
5161 resolve_symbol_value (csect
);
5162 S_SET_VALUE (sym
, S_GET_VALUE (sym
) - S_GET_VALUE (csect
));
5164 else if (S_GET_STORAGE_CLASS (sym
) == C_BINCL
5165 || S_GET_STORAGE_CLASS (sym
) == C_EINCL
)
5167 /* We want the value to be a file offset into the line numbers.
5168 BFD will do that for us if we set the right flags. We have
5169 already set the value correctly. */
5170 coffsymbol (symbol_get_bfdsym (sym
))->native
->fix_line
= 1;
5176 /* Adjust the symbol table. This creates csect symbols for all
5177 absolute symbols. */
5180 ppc_adjust_symtab (void)
5187 for (sym
= symbol_rootP
; sym
!= NULL
; sym
= symbol_next (sym
))
5191 union internal_auxent
*a
;
5193 if (S_GET_SEGMENT (sym
) != absolute_section
)
5196 csect
= symbol_create (".abs[XO]", absolute_section
,
5197 S_GET_VALUE (sym
), &zero_address_frag
);
5198 symbol_get_bfdsym (csect
)->value
= S_GET_VALUE (sym
);
5199 S_SET_STORAGE_CLASS (csect
, C_HIDEXT
);
5200 i
= S_GET_NUMBER_AUXILIARY (csect
);
5201 S_SET_NUMBER_AUXILIARY (csect
, i
+ 1);
5202 a
= &coffsymbol (symbol_get_bfdsym (csect
))->native
[i
+ 1].u
.auxent
;
5203 a
->x_csect
.x_scnlen
.l
= 0;
5204 a
->x_csect
.x_smtyp
= XTY_SD
;
5205 a
->x_csect
.x_parmhash
= 0;
5206 a
->x_csect
.x_snhash
= 0;
5207 a
->x_csect
.x_smclas
= XMC_XO
;
5208 a
->x_csect
.x_stab
= 0;
5209 a
->x_csect
.x_snstab
= 0;
5211 symbol_insert (csect
, sym
, &symbol_rootP
, &symbol_lastP
);
5213 i
= S_GET_NUMBER_AUXILIARY (sym
);
5214 a
= &coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].u
.auxent
;
5215 a
->x_csect
.x_scnlen
.p
= coffsymbol (symbol_get_bfdsym (csect
))->native
;
5216 coffsymbol (symbol_get_bfdsym (sym
))->native
[i
].fix_scnlen
= 1;
5219 ppc_saw_abs
= FALSE
;
5222 /* Set the VMA for a section. This is called on all the sections in
5226 ppc_frob_section (asection
*sec
)
5228 static bfd_vma vma
= 0;
5230 vma
= md_section_align (sec
, vma
);
5231 bfd_set_section_vma (stdoutput
, sec
, vma
);
5232 vma
+= bfd_section_size (stdoutput
, sec
);
5235 #endif /* OBJ_XCOFF */
5238 md_atof (int type
, char *litp
, int *sizep
)
5240 return ieee_md_atof (type
, litp
, sizep
, target_big_endian
);
5243 /* Write a value out to the object file, using the appropriate
5247 md_number_to_chars (char *buf
, valueT val
, int n
)
5249 if (target_big_endian
)
5250 number_to_chars_bigendian (buf
, val
, n
);
5252 number_to_chars_littleendian (buf
, val
, n
);
5255 /* Align a section (I don't know why this is machine dependent). */
5258 md_section_align (asection
*seg ATTRIBUTE_UNUSED
, valueT addr
)
5263 int align
= bfd_get_section_alignment (stdoutput
, seg
);
5265 return ((addr
+ (1 << align
) - 1) & (-1 << align
));
5269 /* We don't have any form of relaxing. */
5272 md_estimate_size_before_relax (fragS
*fragp ATTRIBUTE_UNUSED
,
5273 asection
*seg ATTRIBUTE_UNUSED
)
5279 /* Convert a machine dependent frag. We never generate these. */
5282 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
5283 asection
*sec ATTRIBUTE_UNUSED
,
5284 fragS
*fragp ATTRIBUTE_UNUSED
)
5289 /* We have no need to default values of symbols. */
5292 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
5297 /* Functions concerning relocs. */
5299 /* The location from which a PC relative jump should be calculated,
5300 given a PC relative reloc. */
5303 md_pcrel_from_section (fixS
*fixp
, segT sec ATTRIBUTE_UNUSED
)
5305 return fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
5310 /* This is called to see whether a fixup should be adjusted to use a
5311 section symbol. We take the opportunity to change a fixup against
5312 a symbol in the TOC subsegment into a reloc against the
5313 corresponding .tc symbol. */
5316 ppc_fix_adjustable (fixS
*fix
)
5318 valueT val
= resolve_symbol_value (fix
->fx_addsy
);
5319 segT symseg
= S_GET_SEGMENT (fix
->fx_addsy
);
5320 TC_SYMFIELD_TYPE
*tc
;
5322 if (symseg
== absolute_section
)
5325 if (ppc_toc_csect
!= (symbolS
*) NULL
5326 && fix
->fx_addsy
!= ppc_toc_csect
5327 && symseg
== data_section
5328 && val
>= ppc_toc_frag
->fr_address
5329 && (ppc_after_toc_frag
== (fragS
*) NULL
5330 || val
< ppc_after_toc_frag
->fr_address
))
5334 for (sy
= symbol_next (ppc_toc_csect
);
5335 sy
!= (symbolS
*) NULL
;
5336 sy
= symbol_next (sy
))
5338 TC_SYMFIELD_TYPE
*sy_tc
= symbol_get_tc (sy
);
5340 if (sy_tc
->class == XMC_TC0
)
5342 if (sy_tc
->class != XMC_TC
)
5344 if (val
== resolve_symbol_value (sy
))
5347 fix
->fx_addnumber
= val
- ppc_toc_frag
->fr_address
;
5352 as_bad_where (fix
->fx_file
, fix
->fx_line
,
5353 _("symbol in .toc does not match any .tc"));
5356 /* Possibly adjust the reloc to be against the csect. */
5357 tc
= symbol_get_tc (fix
->fx_addsy
);
5359 && tc
->class != XMC_TC0
5360 && tc
->class != XMC_TC
5361 && symseg
!= bss_section
5362 /* Don't adjust if this is a reloc in the toc section. */
5363 && (symseg
!= data_section
5364 || ppc_toc_csect
== NULL
5365 || val
< ppc_toc_frag
->fr_address
5366 || (ppc_after_toc_frag
!= NULL
5367 && val
>= ppc_after_toc_frag
->fr_address
)))
5370 symbolS
*next_csect
;
5372 if (symseg
== text_section
)
5373 csect
= ppc_text_csects
;
5374 else if (symseg
== data_section
)
5375 csect
= ppc_data_csects
;
5379 /* Skip the initial dummy symbol. */
5380 csect
= symbol_get_tc (csect
)->next
;
5382 if (csect
!= (symbolS
*) NULL
)
5384 while ((next_csect
= symbol_get_tc (csect
)->next
) != (symbolS
*) NULL
5385 && (symbol_get_frag (next_csect
)->fr_address
<= val
))
5387 /* If the csect address equals the symbol value, then we
5388 have to look through the full symbol table to see
5389 whether this is the csect we want. Note that we will
5390 only get here if the csect has zero length. */
5391 if (symbol_get_frag (csect
)->fr_address
== val
5392 && S_GET_VALUE (csect
) == val
)
5396 for (scan
= symbol_next (csect
);
5398 scan
= symbol_next (scan
))
5400 if (symbol_get_tc (scan
)->subseg
!= 0)
5402 if (scan
== fix
->fx_addsy
)
5406 /* If we found the symbol before the next csect
5407 symbol, then this is the csect we want. */
5408 if (scan
== fix
->fx_addsy
)
5415 fix
->fx_offset
+= val
- symbol_get_frag (csect
)->fr_address
;
5416 fix
->fx_addsy
= csect
;
5421 /* Adjust a reloc against a .lcomm symbol to be against the base
5423 if (symseg
== bss_section
5424 && ! S_IS_EXTERNAL (fix
->fx_addsy
))
5426 symbolS
*sy
= symbol_get_frag (fix
->fx_addsy
)->fr_symbol
;
5428 fix
->fx_offset
+= val
- resolve_symbol_value (sy
);
5435 /* A reloc from one csect to another must be kept. The assembler
5436 will, of course, keep relocs between sections, and it will keep
5437 absolute relocs, but we need to force it to keep PC relative relocs
5438 between two csects in the same section. */
5441 ppc_force_relocation (fixS
*fix
)
5443 /* At this point fix->fx_addsy should already have been converted to
5444 a csect symbol. If the csect does not include the fragment, then
5445 we need to force the relocation. */
5447 && fix
->fx_addsy
!= NULL
5448 && symbol_get_tc (fix
->fx_addsy
)->subseg
!= 0
5449 && ((symbol_get_frag (fix
->fx_addsy
)->fr_address
5450 > fix
->fx_frag
->fr_address
)
5451 || (symbol_get_tc (fix
->fx_addsy
)->next
!= NULL
5452 && (symbol_get_frag (symbol_get_tc (fix
->fx_addsy
)->next
)->fr_address
5453 <= fix
->fx_frag
->fr_address
))))
5456 return generic_force_reloc (fix
);
5459 #endif /* OBJ_XCOFF */
5462 /* If this function returns non-zero, it guarantees that a relocation
5463 will be emitted for a fixup. */
5466 ppc_force_relocation (fixS
*fix
)
5468 /* Branch prediction relocations must force a relocation, as must
5469 the vtable description relocs. */
5470 switch (fix
->fx_r_type
)
5472 case BFD_RELOC_PPC_B16_BRTAKEN
:
5473 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5474 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5475 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5476 case BFD_RELOC_24_PLT_PCREL
:
5477 case BFD_RELOC_PPC64_TOC
:
5483 if (fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5484 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
)
5487 return generic_force_reloc (fix
);
5491 ppc_fix_adjustable (fixS
*fix
)
5493 return (fix
->fx_r_type
!= BFD_RELOC_16_GOTOFF
5494 && fix
->fx_r_type
!= BFD_RELOC_LO16_GOTOFF
5495 && fix
->fx_r_type
!= BFD_RELOC_HI16_GOTOFF
5496 && fix
->fx_r_type
!= BFD_RELOC_HI16_S_GOTOFF
5497 && fix
->fx_r_type
!= BFD_RELOC_GPREL16
5498 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_INHERIT
5499 && fix
->fx_r_type
!= BFD_RELOC_VTABLE_ENTRY
5500 && !(fix
->fx_r_type
>= BFD_RELOC_PPC_TLS
5501 && fix
->fx_r_type
<= BFD_RELOC_PPC64_DTPREL16_HIGHESTA
));
5505 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5506 rs_align_code frag. */
5509 ppc_handle_align (struct frag
*fragP
)
5511 valueT count
= (fragP
->fr_next
->fr_address
5512 - (fragP
->fr_address
+ fragP
->fr_fix
));
5514 if (count
!= 0 && (count
& 3) == 0)
5516 char *dest
= fragP
->fr_literal
+ fragP
->fr_fix
;
5519 md_number_to_chars (dest
, 0x60000000, 4);
5521 if ((ppc_cpu
& PPC_OPCODE_POWER6
) != 0)
5523 /* For power6, we want the last nop to be a group terminating
5524 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5525 immediately after this one, with its address set to the last
5526 nop location. This will automatically reduce the number of
5527 nops in the current frag by one. */
5530 struct frag
*group_nop
= xmalloc (SIZEOF_STRUCT_FRAG
+ 4);
5532 memcpy (group_nop
, fragP
, SIZEOF_STRUCT_FRAG
);
5533 group_nop
->fr_address
= group_nop
->fr_next
->fr_address
- 4;
5534 group_nop
->fr_fix
= 0;
5535 group_nop
->fr_offset
= 1;
5536 group_nop
->fr_type
= rs_fill
;
5537 fragP
->fr_next
= group_nop
;
5538 dest
= group_nop
->fr_literal
;
5541 md_number_to_chars (dest
, 0x60210000, 4);
5546 /* Apply a fixup to the object code. This is called for all the
5547 fixups we generated by the call to fix_new_exp, above. In the call
5548 above we used a reloc code which was the largest legal reloc code
5549 plus the operand index. Here we undo that to recover the operand
5550 index. At this point all symbol values should be fully resolved,
5551 and we attempt to completely resolve the reloc. If we can not do
5552 that, we determine the correct reloc code and put it back in the
5556 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
5558 valueT value
= * valP
;
5561 if (fixP
->fx_addsy
!= NULL
)
5563 /* Hack around bfd_install_relocation brain damage. */
5565 value
+= fixP
->fx_frag
->fr_address
+ fixP
->fx_where
;
5570 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5571 the symbol values. If we are doing this relocation the code in
5572 write.c is going to call bfd_install_relocation, which is also
5573 going to use the symbol value. That means that if the reloc is
5574 fully resolved we want to use *valP since bfd_install_relocation is
5576 However, if the reloc is not fully resolved we do not want to use
5577 *valP, and must use fx_offset instead. However, if the reloc
5578 is PC relative, we do want to use *valP since it includes the
5579 result of md_pcrel_from. This is confusing. */
5580 if (fixP
->fx_addsy
== (symbolS
*) NULL
)
5583 else if (fixP
->fx_pcrel
)
5587 value
= fixP
->fx_offset
;
5590 if (fixP
->fx_subsy
!= (symbolS
*) NULL
)
5592 /* We can't actually support subtracting a symbol. */
5593 as_bad_where (fixP
->fx_file
, fixP
->fx_line
, _("expression too complex"));
5596 if ((int) fixP
->fx_r_type
>= (int) BFD_RELOC_UNUSED
)
5599 const struct powerpc_operand
*operand
;
5603 opindex
= (int) fixP
->fx_r_type
- (int) BFD_RELOC_UNUSED
;
5605 operand
= &powerpc_operands
[opindex
];
5608 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5609 does not generate a reloc. It uses the offset of `sym' within its
5610 csect. Other usages, such as `.long sym', generate relocs. This
5611 is the documented behaviour of non-TOC symbols. */
5612 if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5613 && (operand
->bitm
& 0xfff0) == 0xfff0
5614 && operand
->shift
== 0
5615 && (operand
->insert
== NULL
|| ppc_obj64
)
5616 && fixP
->fx_addsy
!= NULL
5617 && symbol_get_tc (fixP
->fx_addsy
)->subseg
!= 0
5618 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC
5619 && symbol_get_tc (fixP
->fx_addsy
)->class != XMC_TC0
5620 && S_GET_SEGMENT (fixP
->fx_addsy
) != bss_section
)
5622 value
= fixP
->fx_offset
;
5627 /* Fetch the instruction, insert the fully resolved operand
5628 value, and stuff the instruction back again. */
5629 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5630 if (target_big_endian
)
5631 insn
= bfd_getb32 ((unsigned char *) where
);
5633 insn
= bfd_getl32 ((unsigned char *) where
);
5634 insn
= ppc_insert_operand (insn
, operand
, (offsetT
) value
,
5635 fixP
->fx_file
, fixP
->fx_line
);
5636 if (target_big_endian
)
5637 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
5639 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
5642 /* Nothing else to do here. */
5645 assert (fixP
->fx_addsy
!= NULL
);
5647 /* Determine a BFD reloc value based on the operand information.
5648 We are only prepared to turn a few of the operands into
5650 if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5651 && operand
->bitm
== 0x3fffffc
5652 && operand
->shift
== 0)
5653 fixP
->fx_r_type
= BFD_RELOC_PPC_B26
;
5654 else if ((operand
->flags
& PPC_OPERAND_RELATIVE
) != 0
5655 && operand
->bitm
== 0xfffc
5656 && operand
->shift
== 0)
5658 fixP
->fx_r_type
= BFD_RELOC_PPC_B16
;
5661 if (target_big_endian
)
5662 fixP
->fx_where
+= 2;
5665 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5666 && operand
->bitm
== 0x3fffffc
5667 && operand
->shift
== 0)
5668 fixP
->fx_r_type
= BFD_RELOC_PPC_BA26
;
5669 else if ((operand
->flags
& PPC_OPERAND_ABSOLUTE
) != 0
5670 && operand
->bitm
== 0xfffc
5671 && operand
->shift
== 0)
5673 fixP
->fx_r_type
= BFD_RELOC_PPC_BA16
;
5676 if (target_big_endian
)
5677 fixP
->fx_where
+= 2;
5680 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5681 else if ((operand
->flags
& PPC_OPERAND_PARENS
) != 0
5682 && (operand
->bitm
& 0xfff0) == 0xfff0
5683 && operand
->shift
== 0)
5685 if (ppc_is_toc_sym (fixP
->fx_addsy
))
5687 fixP
->fx_r_type
= BFD_RELOC_PPC_TOC16
;
5690 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5691 fixP
->fx_r_type
= BFD_RELOC_PPC64_TOC16_DS
;
5696 fixP
->fx_r_type
= BFD_RELOC_16
;
5699 && (operand
->flags
& PPC_OPERAND_DS
) != 0)
5700 fixP
->fx_r_type
= BFD_RELOC_PPC64_ADDR16_DS
;
5704 if (target_big_endian
)
5705 fixP
->fx_where
+= 2;
5707 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5713 /* Use expr_symbol_where to see if this is an expression
5715 if (expr_symbol_where (fixP
->fx_addsy
, &sfile
, &sline
))
5716 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5717 _("unresolved expression that must be resolved"));
5719 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5720 _("unsupported relocation against %s"),
5721 S_GET_NAME (fixP
->fx_addsy
));
5729 ppc_elf_validate_fix (fixP
, seg
);
5731 switch (fixP
->fx_r_type
)
5733 case BFD_RELOC_CTOR
:
5740 fixP
->fx_r_type
= BFD_RELOC_32_PCREL
;
5744 case BFD_RELOC_32_PCREL
:
5745 case BFD_RELOC_PPC_EMB_NADDR32
:
5746 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5753 fixP
->fx_r_type
= BFD_RELOC_64_PCREL
;
5756 case BFD_RELOC_64_PCREL
:
5757 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5761 case BFD_RELOC_GPREL16
:
5762 case BFD_RELOC_16_GOT_PCREL
:
5763 case BFD_RELOC_16_GOTOFF
:
5764 case BFD_RELOC_LO16_GOTOFF
:
5765 case BFD_RELOC_HI16_GOTOFF
:
5766 case BFD_RELOC_HI16_S_GOTOFF
:
5767 case BFD_RELOC_16_BASEREL
:
5768 case BFD_RELOC_LO16_BASEREL
:
5769 case BFD_RELOC_HI16_BASEREL
:
5770 case BFD_RELOC_HI16_S_BASEREL
:
5771 case BFD_RELOC_PPC_EMB_NADDR16
:
5772 case BFD_RELOC_PPC_EMB_NADDR16_LO
:
5773 case BFD_RELOC_PPC_EMB_NADDR16_HI
:
5774 case BFD_RELOC_PPC_EMB_NADDR16_HA
:
5775 case BFD_RELOC_PPC_EMB_SDAI16
:
5776 case BFD_RELOC_PPC_EMB_SDA2REL
:
5777 case BFD_RELOC_PPC_EMB_SDA2I16
:
5778 case BFD_RELOC_PPC_EMB_RELSEC16
:
5779 case BFD_RELOC_PPC_EMB_RELST_LO
:
5780 case BFD_RELOC_PPC_EMB_RELST_HI
:
5781 case BFD_RELOC_PPC_EMB_RELST_HA
:
5782 case BFD_RELOC_PPC_EMB_RELSDA
:
5783 case BFD_RELOC_PPC_TOC16
:
5785 case BFD_RELOC_PPC64_TOC16_LO
:
5786 case BFD_RELOC_PPC64_TOC16_HI
:
5787 case BFD_RELOC_PPC64_TOC16_HA
:
5791 if (fixP
->fx_addsy
!= NULL
)
5792 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5793 _("cannot emit PC relative %s relocation against %s"),
5794 bfd_get_reloc_code_name (fixP
->fx_r_type
),
5795 S_GET_NAME (fixP
->fx_addsy
));
5797 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
5798 _("cannot emit PC relative %s relocation"),
5799 bfd_get_reloc_code_name (fixP
->fx_r_type
));
5802 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5808 fixP
->fx_r_type
= BFD_RELOC_16_PCREL
;
5811 case BFD_RELOC_16_PCREL
:
5812 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5816 case BFD_RELOC_LO16
:
5818 fixP
->fx_r_type
= BFD_RELOC_LO16_PCREL
;
5821 case BFD_RELOC_LO16_PCREL
:
5822 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5826 /* This case happens when you write, for example,
5828 where L1 and L2 are defined later. */
5829 case BFD_RELOC_HI16
:
5831 fixP
->fx_r_type
= BFD_RELOC_HI16_PCREL
;
5834 case BFD_RELOC_HI16_PCREL
:
5835 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5839 case BFD_RELOC_HI16_S
:
5841 fixP
->fx_r_type
= BFD_RELOC_HI16_S_PCREL
;
5844 case BFD_RELOC_HI16_S_PCREL
:
5845 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5850 case BFD_RELOC_PPC64_HIGHER
:
5853 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5854 PPC_HIGHER (value
), 2);
5857 case BFD_RELOC_PPC64_HIGHER_S
:
5860 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5861 PPC_HIGHERA (value
), 2);
5864 case BFD_RELOC_PPC64_HIGHEST
:
5867 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5868 PPC_HIGHEST (value
), 2);
5871 case BFD_RELOC_PPC64_HIGHEST_S
:
5874 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5875 PPC_HIGHESTA (value
), 2);
5878 case BFD_RELOC_PPC64_ADDR16_DS
:
5879 case BFD_RELOC_PPC64_ADDR16_LO_DS
:
5880 case BFD_RELOC_PPC64_GOT16_DS
:
5881 case BFD_RELOC_PPC64_GOT16_LO_DS
:
5882 case BFD_RELOC_PPC64_PLT16_LO_DS
:
5883 case BFD_RELOC_PPC64_SECTOFF_DS
:
5884 case BFD_RELOC_PPC64_SECTOFF_LO_DS
:
5885 case BFD_RELOC_PPC64_TOC16_DS
:
5886 case BFD_RELOC_PPC64_TOC16_LO_DS
:
5887 case BFD_RELOC_PPC64_PLTGOT16_DS
:
5888 case BFD_RELOC_PPC64_PLTGOT16_LO_DS
:
5892 char *where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
5893 unsigned long val
, mask
;
5895 if (target_big_endian
)
5896 val
= bfd_getb32 (where
- 2);
5898 val
= bfd_getl32 (where
);
5900 /* lq insns reserve the four lsbs. */
5901 if ((ppc_cpu
& PPC_OPCODE_POWER4
) != 0
5902 && (val
& (0x3f << 26)) == (56u << 26))
5904 val
|= value
& mask
;
5905 if (target_big_endian
)
5906 bfd_putb16 ((bfd_vma
) val
, where
);
5908 bfd_putl16 ((bfd_vma
) val
, where
);
5912 case BFD_RELOC_PPC_B16_BRTAKEN
:
5913 case BFD_RELOC_PPC_B16_BRNTAKEN
:
5914 case BFD_RELOC_PPC_BA16_BRTAKEN
:
5915 case BFD_RELOC_PPC_BA16_BRNTAKEN
:
5918 case BFD_RELOC_PPC_TLS
:
5921 case BFD_RELOC_PPC_DTPMOD
:
5922 case BFD_RELOC_PPC_TPREL16
:
5923 case BFD_RELOC_PPC_TPREL16_LO
:
5924 case BFD_RELOC_PPC_TPREL16_HI
:
5925 case BFD_RELOC_PPC_TPREL16_HA
:
5926 case BFD_RELOC_PPC_TPREL
:
5927 case BFD_RELOC_PPC_DTPREL16
:
5928 case BFD_RELOC_PPC_DTPREL16_LO
:
5929 case BFD_RELOC_PPC_DTPREL16_HI
:
5930 case BFD_RELOC_PPC_DTPREL16_HA
:
5931 case BFD_RELOC_PPC_DTPREL
:
5932 case BFD_RELOC_PPC_GOT_TLSGD16
:
5933 case BFD_RELOC_PPC_GOT_TLSGD16_LO
:
5934 case BFD_RELOC_PPC_GOT_TLSGD16_HI
:
5935 case BFD_RELOC_PPC_GOT_TLSGD16_HA
:
5936 case BFD_RELOC_PPC_GOT_TLSLD16
:
5937 case BFD_RELOC_PPC_GOT_TLSLD16_LO
:
5938 case BFD_RELOC_PPC_GOT_TLSLD16_HI
:
5939 case BFD_RELOC_PPC_GOT_TLSLD16_HA
:
5940 case BFD_RELOC_PPC_GOT_TPREL16
:
5941 case BFD_RELOC_PPC_GOT_TPREL16_LO
:
5942 case BFD_RELOC_PPC_GOT_TPREL16_HI
:
5943 case BFD_RELOC_PPC_GOT_TPREL16_HA
:
5944 case BFD_RELOC_PPC_GOT_DTPREL16
:
5945 case BFD_RELOC_PPC_GOT_DTPREL16_LO
:
5946 case BFD_RELOC_PPC_GOT_DTPREL16_HI
:
5947 case BFD_RELOC_PPC_GOT_DTPREL16_HA
:
5948 case BFD_RELOC_PPC64_TPREL16_DS
:
5949 case BFD_RELOC_PPC64_TPREL16_LO_DS
:
5950 case BFD_RELOC_PPC64_TPREL16_HIGHER
:
5951 case BFD_RELOC_PPC64_TPREL16_HIGHERA
:
5952 case BFD_RELOC_PPC64_TPREL16_HIGHEST
:
5953 case BFD_RELOC_PPC64_TPREL16_HIGHESTA
:
5954 case BFD_RELOC_PPC64_DTPREL16_DS
:
5955 case BFD_RELOC_PPC64_DTPREL16_LO_DS
:
5956 case BFD_RELOC_PPC64_DTPREL16_HIGHER
:
5957 case BFD_RELOC_PPC64_DTPREL16_HIGHERA
:
5958 case BFD_RELOC_PPC64_DTPREL16_HIGHEST
:
5959 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA
:
5960 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
5963 /* Because SDA21 modifies the register field, the size is set to 4
5964 bytes, rather than 2, so offset it here appropriately. */
5965 case BFD_RELOC_PPC_EMB_SDA21
:
5969 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
5970 + ((target_big_endian
) ? 2 : 0),
5977 /* This can occur if there is a bug in the input assembler, eg:
5978 ".byte <undefined_symbol> - ." */
5980 as_bad (_("Unable to handle reference to symbol %s"),
5981 S_GET_NAME (fixP
->fx_addsy
));
5983 as_bad (_("Unable to resolve expression"));
5987 md_number_to_chars (fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
,
5991 case BFD_RELOC_24_PLT_PCREL
:
5992 case BFD_RELOC_PPC_LOCAL24PC
:
5993 if (!fixP
->fx_pcrel
&& !fixP
->fx_done
)
6001 /* Fetch the instruction, insert the fully resolved operand
6002 value, and stuff the instruction back again. */
6003 where
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
6004 if (target_big_endian
)
6005 insn
= bfd_getb32 ((unsigned char *) where
);
6007 insn
= bfd_getl32 ((unsigned char *) where
);
6008 if ((value
& 3) != 0)
6009 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6010 _("must branch to an address a multiple of 4"));
6011 if ((offsetT
) value
< -0x40000000
6012 || (offsetT
) value
>= 0x40000000)
6013 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
6014 _("@local or @plt branch destination is too far away, %ld bytes"),
6016 insn
= insn
| (value
& 0x03fffffc);
6017 if (target_big_endian
)
6018 bfd_putb32 ((bfd_vma
) insn
, (unsigned char *) where
);
6020 bfd_putl32 ((bfd_vma
) insn
, (unsigned char *) where
);
6024 case BFD_RELOC_VTABLE_INHERIT
:
6027 && !S_IS_DEFINED (fixP
->fx_addsy
)
6028 && !S_IS_WEAK (fixP
->fx_addsy
))
6029 S_SET_WEAK (fixP
->fx_addsy
);
6032 case BFD_RELOC_VTABLE_ENTRY
:
6037 /* Generated by reference to `sym@tocbase'. The sym is
6038 ignored by the linker. */
6039 case BFD_RELOC_PPC64_TOC
:
6045 _("Gas failure, reloc value %d\n"), fixP
->fx_r_type
);
6052 fixP
->fx_addnumber
= value
;
6054 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6055 from the section contents. If we are going to be emitting a reloc
6056 then the section contents are immaterial, so don't warn if they
6057 happen to overflow. Leave such warnings to ld. */
6059 fixP
->fx_no_overflow
= 1;
6061 if (fixP
->fx_r_type
!= BFD_RELOC_PPC_TOC16
)
6062 fixP
->fx_addnumber
= 0;
6066 fixP
->fx_addnumber
= 0;
6068 /* We want to use the offset within the toc, not the actual VMA
6070 fixP
->fx_addnumber
=
6071 - bfd_get_section_vma (stdoutput
, S_GET_SEGMENT (fixP
->fx_addsy
))
6072 - S_GET_VALUE (ppc_toc_csect
);
6078 /* Generate a reloc for a fixup. */
6081 tc_gen_reloc (asection
*seg ATTRIBUTE_UNUSED
, fixS
*fixp
)
6085 reloc
= (arelent
*) xmalloc (sizeof (arelent
));
6087 reloc
->sym_ptr_ptr
= (asymbol
**) xmalloc (sizeof (asymbol
*));
6088 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
6089 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
6090 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
, fixp
->fx_r_type
);
6091 if (reloc
->howto
== (reloc_howto_type
*) NULL
)
6093 as_bad_where (fixp
->fx_file
, fixp
->fx_line
,
6094 _("reloc %d not supported by object file format"),
6095 (int) fixp
->fx_r_type
);
6098 reloc
->addend
= fixp
->fx_addnumber
;
6104 ppc_cfi_frame_initial_instructions (void)
6106 cfi_add_CFA_def_cfa (1, 0);
6110 tc_ppc_regname_to_dw2regnum (char *regname
)
6112 unsigned int regnum
= -1;
6116 static struct { char *name
; int dw2regnum
; } regnames
[] =
6118 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6119 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6120 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6121 { "spe_acc", 111 }, { "spefscr", 112 }
6124 for (i
= 0; i
< ARRAY_SIZE (regnames
); ++i
)
6125 if (strcmp (regnames
[i
].name
, regname
) == 0)
6126 return regnames
[i
].dw2regnum
;
6128 if (regname
[0] == 'r' || regname
[0] == 'f' || regname
[0] == 'v')
6130 p
= regname
+ 1 + (regname
[1] == '.');
6131 regnum
= strtoul (p
, &q
, 10);
6132 if (p
== q
|| *q
|| regnum
>= 32)
6134 if (regname
[0] == 'f')
6136 else if (regname
[0] == 'v')
6139 else if (regname
[0] == 'c' && regname
[1] == 'r')
6141 p
= regname
+ 2 + (regname
[2] == '.');
6142 if (p
[0] < '0' || p
[0] > '7' || p
[1])
6144 regnum
= p
[0] - '0' + 68;