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, 2008 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 type of processor we are assembling for. This is one or more
183 of the PPC_OPCODE flags defined in opcode/ppc.h. */
184 ppc_cpu_t ppc_cpu = 0;
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
203 { "bi", ppc_biei, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
210 { "ei", ppc_biei, 1 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
221 { "llong", ppc_xcoff_cons, 3 },
222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
239 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
240 { "previous", ppc_previous, 0 },
241 { "pdata", ppc_pdata, 0 },
242 { "ydata", ppc_ydata, 0 },
243 { "reldata", ppc_reldata, 0 },
244 { "rdata", ppc_rdata, 0 },
245 { "ualong", ppc_ualong, 0 },
246 { "znop", ppc_znop, 0 },
247 { "comm", ppc_pe_comm, 0 },
248 { "lcomm", ppc_pe_comm, 1 },
249 { "section", ppc_pe_section, 0 },
250 { "function", ppc_pe_function,0 },
251 { "tocd", ppc_pe_tocd, 0 },
254 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
256 { "machine", ppc_machine, 0 },
263 /* Predefined register names if -mregnames (or default for Windows NT).
264 In general, there are lots of them, in an attempt to be compatible
265 with a number of other Windows NT assemblers. */
267 /* Structure to hold information about predefined registers. */
274 /* List of registers that are pre-defined:
276 Each general register has predefined names of the form:
277 1. r<reg_num> which has the value <reg_num>.
278 2. r.<reg_num> which has the value <reg_num>.
280 Each floating point register has predefined names of the form:
281 1. f<reg_num> which has the value <reg_num>.
282 2. f.<reg_num> which has the value <reg_num>.
284 Each vector unit register has predefined names of the form:
285 1. v<reg_num> which has the value <reg_num>.
286 2. v.<reg_num> which has the value <reg_num>.
288 Each condition register has predefined names of the form:
289 1. cr<reg_num> which has the value <reg_num>.
290 2. cr.<reg_num> which has the value <reg_num>.
292 There are individual registers as well:
293 sp or r.sp has the value 1
294 rtoc or r.toc has the value 2
295 fpscr has the value 0
301 dsisr has the value 18
303 sdr1 has the value 25
304 srr0 has the value 26
305 srr1 has the value 27
307 The table is sorted. Suitable for searching by a binary search. */
309 static const struct pd_reg pre_defined_registers[] =
311 { "cr.0", 0 }, /* Condition Registers */
331 { "dar", 19 }, /* Data Access Register */
332 { "dec", 22 }, /* Decrementer */
333 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
335 { "f.0", 0 }, /* Floating point registers */
403 /* Quantization registers used with pair single instructions. */
421 { "lr", 8 }, /* Link Register */
425 { "r.0", 0 }, /* General Purpose Registers */
458 { "r.sp", 1 }, /* Stack Pointer */
460 { "r.toc", 2 }, /* Pointer to the table of contents */
462 { "r0", 0 }, /* More general purpose registers */
495 { "rtoc", 2 }, /* Table of contents */
497 { "sdr1", 25 }, /* Storage Description Register 1 */
501 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
502 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
504 { "v.0", 0 }, /* Vector registers */
574 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
576 /* Given NAME, find the register number associated with that name, return
577 the integer value associated with the given name or -1 on failure. */
580 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
582 int middle, low, high;
590 middle = (low + high) / 2;
591 cmp = strcasecmp (name, regs[middle].name);
597 return regs[middle].value;
605 * Summary of register_name.
607 * in: Input_line_pointer points to 1st char of operand.
609 * out: A expressionS.
610 * The operand may have been a register: in this case, X_op == O_register,
611 * X_add_number is set to the register number, and truth is returned.
612 * Input_line_pointer->(next non-blank) char after operand, or is in its
617 register_name (expressionS *expressionP)
624 /* Find the spelling of the operand. */
625 start = name = input_line_pointer;
626 if (name[0] == '%' && ISALPHA (name[1]))
627 name = ++input_line_pointer;
629 else if (!reg_names_p || !ISALPHA (name[0]))
632 c = get_symbol_end ();
633 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
635 /* Put back the delimiting char. */
636 *input_line_pointer = c;
638 /* Look to see if it's in the register table. */
641 expressionP->X_op = O_register;
642 expressionP->X_add_number = reg_number;
644 /* Make the rest nice. */
645 expressionP->X_add_symbol = NULL;
646 expressionP->X_op_symbol = NULL;
650 /* Reset the line as if we had not done anything. */
651 input_line_pointer = start;
655 /* This function is called for each symbol seen in an expression. It
656 handles the special parsing which PowerPC assemblers are supposed
657 to use for condition codes. */
659 /* Whether to do the special parsing. */
660 static bfd_boolean cr_operand;
662 /* Names to recognize in a condition code. This table is sorted. */
663 static const struct pd_reg cr_names[] =
680 /* Parsing function. This returns non-zero if it recognized an
684 ppc_parse_name (const char *name, expressionS *expr)
693 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
698 expr->X_op = O_constant;
699 expr->X_add_number = val;
704 /* Local variables. */
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 ppc_cpu_t retain_flags =
829 ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX | PPC_OPCODE_SPE);
831 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
833 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
834 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
835 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
836 else if (strcmp (arg, "pwr") == 0)
837 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
838 /* -m601 means to assemble for the PowerPC 601, which includes
839 instructions that are holdovers from the Power. */
840 else if (strcmp (arg, "601") == 0)
841 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
842 | PPC_OPCODE_601 | PPC_OPCODE_32);
843 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
845 else if (strcmp (arg, "ppc") == 0
846 || strcmp (arg, "ppc32") == 0
847 || strcmp (arg, "603") == 0
848 || strcmp (arg, "604") == 0)
849 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
850 /* Do all PPC750s have paired single ops? */
851 else if (strcmp (arg, "750cl") == 0)
852 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_PPCPS;
853 else if (strcmp (arg, "403") == 0)
854 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
855 | PPC_OPCODE_403 | PPC_OPCODE_32);
856 else if (strcmp (arg, "405") == 0)
857 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
858 | PPC_OPCODE_403 | PPC_OPCODE_405 | PPC_OPCODE_32);
859 else if (strcmp (arg, "440") == 0
860 || strcmp (arg, "464") == 0)
861 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
862 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
863 else if (strcmp (arg, "7400") == 0
864 || strcmp (arg, "7410") == 0
865 || strcmp (arg, "7450") == 0
866 || strcmp (arg, "7455") == 0)
867 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
868 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
869 else if (strcmp (arg, "e300") == 0)
870 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
872 else if (strcmp (arg, "altivec") == 0)
875 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
877 retain_flags |= PPC_OPCODE_ALTIVEC;
879 else if (strcmp (arg, "vsx") == 0)
882 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
884 retain_flags |= PPC_OPCODE_VSX;
886 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
888 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
889 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
890 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
891 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
893 else if (strcmp (arg, "e500mc") == 0)
895 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
896 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
897 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
899 else if (strcmp (arg, "spe") == 0)
902 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_EFS;
904 retain_flags |= PPC_OPCODE_SPE;
906 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
908 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
910 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
912 else if (strcmp (arg, "ppc64bridge") == 0)
914 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
917 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
918 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
920 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
922 else if (strcmp (arg, "power4") == 0)
924 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
925 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
927 else if (strcmp (arg, "power5") == 0)
929 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
930 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
931 | PPC_OPCODE_POWER5);
933 else if (strcmp (arg, "power6") == 0)
935 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
936 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
937 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
938 | PPC_OPCODE_ALTIVEC);
940 else if (strcmp (arg, "power7") == 0)
942 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
943 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
944 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6
945 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_VSX);
947 else if (strcmp (arg, "cell") == 0)
949 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
950 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
951 | PPC_OPCODE_CELL | PPC_OPCODE_ALTIVEC);
953 /* -mcom means assemble for the common intersection between Power
954 and PowerPC. At present, we just allow the union, rather
955 than the intersection. */
956 else if (strcmp (arg, "com") == 0)
957 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
958 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
959 else if (strcmp (arg, "any") == 0)
960 ppc_cpu |= PPC_OPCODE_ANY;
964 /* Make sure the the Altivec, VSX and SPE bits are not lost. */
965 ppc_cpu |= retain_flags;
970 md_parse_option (int c, char *arg)
975 /* -u means that any undefined symbols should be treated as
976 external, which is the default for gas anyhow. */
981 /* Solaris as takes -le (presumably for little endian). For completeness
982 sake, recognize -be also. */
983 if (strcmp (arg, "e") == 0)
985 target_big_endian = 0;
986 set_target_endian = 1;
994 if (strcmp (arg, "e") == 0)
996 target_big_endian = 1;
997 set_target_endian = 1;
1005 /* Recognize -K PIC. */
1006 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1009 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1017 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1019 if (strcmp (arg, "64") == 0)
1024 as_fatal (_("%s unsupported"), "-a64");
1027 else if (strcmp (arg, "32") == 0)
1034 if (parse_cpu (arg))
1037 else if (strcmp (arg, "regnames") == 0)
1040 else if (strcmp (arg, "no-regnames") == 0)
1041 reg_names_p = FALSE;
1044 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1045 that require relocation. */
1046 else if (strcmp (arg, "relocatable") == 0)
1048 shlib = SHLIB_MRELOCATABLE;
1049 ppc_flags |= EF_PPC_RELOCATABLE;
1052 else if (strcmp (arg, "relocatable-lib") == 0)
1054 shlib = SHLIB_MRELOCATABLE;
1055 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1058 /* -memb, set embedded bit. */
1059 else if (strcmp (arg, "emb") == 0)
1060 ppc_flags |= EF_PPC_EMB;
1062 /* -mlittle/-mbig set the endianess. */
1063 else if (strcmp (arg, "little") == 0
1064 || strcmp (arg, "little-endian") == 0)
1066 target_big_endian = 0;
1067 set_target_endian = 1;
1070 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1072 target_big_endian = 1;
1073 set_target_endian = 1;
1076 else if (strcmp (arg, "solaris") == 0)
1079 ppc_comment_chars = ppc_solaris_comment_chars;
1082 else if (strcmp (arg, "no-solaris") == 0)
1085 ppc_comment_chars = ppc_eabi_comment_chars;
1090 as_bad (_("invalid switch -m%s"), arg);
1096 /* -V: SVR4 argument to print version ID. */
1098 print_version_id ();
1101 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1102 should be emitted or not. FIXME: Not implemented. */
1106 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1107 rather than .stabs.excl, which is ignored by the linker.
1108 FIXME: Not implemented. */
1124 md_show_usage (FILE *stream)
1126 fprintf (stream, _("\
1128 -a32 generate ELF32/XCOFF32\n\
1129 -a64 generate ELF64/XCOFF64\n\
1131 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1132 -mpwr generate code for POWER (RIOS1)\n\
1133 -m601 generate code for PowerPC 601\n\
1134 -mppc, -mppc32, -m603, -m604\n\
1135 generate code for PowerPC 603/604\n\
1136 -m403 generate code for PowerPC 403\n\
1137 -m405 generate code for PowerPC 405\n\
1138 -m440 generate code for PowerPC 440\n\
1139 -m464 generate code for PowerPC 464\n\
1140 -m7400, -m7410, -m7450, -m7455\n\
1141 generate code for PowerPC 7400/7410/7450/7455\n\
1142 -m750cl generate code for PowerPC 750cl\n"));
1143 fprintf (stream, _("\
1144 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1145 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1146 -mbooke generate code for 32-bit PowerPC BookE\n\
1147 -mpower4 generate code for Power4 architecture\n\
1148 -mpower5 generate code for Power5 architecture\n\
1149 -mpower6 generate code for Power6 architecture\n\
1150 -mpower7 generate code for Power7 architecture\n\
1151 -mcell generate code for Cell Broadband Engine architecture\n\
1152 -mcom generate code Power/PowerPC common instructions\n\
1153 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1154 fprintf (stream, _("\
1155 -maltivec generate code for AltiVec\n\
1156 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1157 -me300 generate code for PowerPC e300 family\n\
1158 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1159 -me500mc, generate code for Freescale e500mc core complex\n\
1160 -mspe generate code for Motorola SPE instructions\n\
1161 -mregnames Allow symbolic names for registers\n\
1162 -mno-regnames Do not allow symbolic names for registers\n"));
1164 fprintf (stream, _("\
1165 -mrelocatable support for GCC's -mrelocatble option\n\
1166 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1167 -memb set PPC_EMB bit in ELF flags\n\
1168 -mlittle, -mlittle-endian, -l, -le\n\
1169 generate code for a little endian machine\n\
1170 -mbig, -mbig-endian, -b, -be\n\
1171 generate code for a big endian machine\n\
1172 -msolaris generate code for Solaris\n\
1173 -mno-solaris do not generate code for Solaris\n\
1174 -V print assembler version number\n\
1175 -Qy, -Qn ignored\n"));
1179 /* Set ppc_cpu if it is not already set. */
1184 const char *default_os = TARGET_OS;
1185 const char *default_cpu = TARGET_CPU;
1187 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1190 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1191 else if (strncmp (default_os, "aix", 3) == 0
1192 && default_os[3] >= '4' && default_os[3] <= '9')
1193 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1194 else if (strncmp (default_os, "aix3", 4) == 0)
1195 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1196 else if (strcmp (default_cpu, "rs6000") == 0)
1197 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1198 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1199 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1201 as_fatal (_("Unknown default cpu = %s, os = %s"),
1202 default_cpu, default_os);
1206 /* Figure out the BFD architecture to use. This function and ppc_mach
1207 are called well before md_begin, when the output file is opened. */
1209 enum bfd_architecture
1212 const char *default_cpu = TARGET_CPU;
1215 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1216 return bfd_arch_powerpc;
1217 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1218 return bfd_arch_rs6000;
1219 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1221 if (strcmp (default_cpu, "rs6000") == 0)
1222 return bfd_arch_rs6000;
1223 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1224 return bfd_arch_powerpc;
1227 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1228 return bfd_arch_unknown;
1235 return bfd_mach_ppc64;
1236 else if (ppc_arch () == bfd_arch_rs6000)
1237 return bfd_mach_rs6k;
1239 return bfd_mach_ppc;
1243 ppc_target_format (void)
1247 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1249 return "xcoff-powermac";
1252 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1254 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1260 return "elf32-powerpc-vxworks";
1262 return (target_big_endian
1263 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1264 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1269 /* Insert opcodes and macros into hash tables. Called at startup and
1273 ppc_setup_opcodes (void)
1275 const struct powerpc_opcode *op;
1276 const struct powerpc_opcode *op_end;
1277 const struct powerpc_macro *macro;
1278 const struct powerpc_macro *macro_end;
1279 bfd_boolean bad_insn = FALSE;
1281 if (ppc_hash != NULL)
1282 hash_die (ppc_hash);
1283 if (ppc_macro_hash != NULL)
1284 hash_die (ppc_macro_hash);
1286 /* Insert the opcodes into a hash table. */
1287 ppc_hash = hash_new ();
1289 if (ENABLE_CHECKING)
1293 /* Check operand masks. Code here and in the disassembler assumes
1294 all the 1's in the mask are contiguous. */
1295 for (i = 0; i < num_powerpc_operands; ++i)
1297 unsigned long mask = powerpc_operands[i].bitm;
1298 unsigned long right_bit;
1301 right_bit = mask & -mask;
1303 right_bit = mask & -mask;
1304 if (mask != right_bit)
1306 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1309 for (j = i + 1; j < num_powerpc_operands; ++j)
1310 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1311 sizeof (powerpc_operands[0])) == 0)
1313 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1320 op_end = powerpc_opcodes + powerpc_num_opcodes;
1321 for (op = powerpc_opcodes; op < op_end; op++)
1323 if (ENABLE_CHECKING)
1325 const unsigned char *o;
1326 unsigned long omask = op->mask;
1328 if (op != powerpc_opcodes)
1330 /* The major opcodes had better be sorted. Code in the
1331 disassembler assumes the insns are sorted according to
1333 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1335 as_bad (_("major opcode is not sorted for %s"),
1340 /* Warn if the table isn't more strictly ordered.
1341 Unfortunately it doesn't seem possible to order the
1342 table on much more than the major opcode, which makes
1343 it difficult to implement a binary search in the
1344 disassembler. The problem is that we have multiple
1345 ways to disassemble instructions, and we usually want
1346 to choose a more specific form (with more bits set in
1347 the opcode) than a more general form. eg. all of the
1348 following are equivalent:
1349 bne label # opcode = 0x40820000, mask = 0xff830003
1350 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1351 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1353 There are also cases where the table needs to be out
1354 of order to disassemble the correct instruction for
1355 processor variants. */
1358 unsigned long t1 = op[0].opcode;
1359 unsigned long t2 = op[-1].opcode;
1361 if (((t1 ^ t2) & 0xfc0007ff) == 0
1362 && (t1 & 0xfc0006df) == 0x7c000286)
1364 /* spr field is split. */
1365 t1 = ((t1 & ~0x1ff800)
1366 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1367 t2 = ((t2 & ~0x1ff800)
1368 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1371 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1372 op[0].name, op[0].opcode, op[0].mask,
1373 op[-1].name, op[-1].opcode, op[-1].mask);
1377 /* The mask had better not trim off opcode bits. */
1378 if ((op->opcode & omask) != op->opcode)
1380 as_bad (_("mask trims opcode bits for %s"),
1385 /* The operands must not overlap the opcode or each other. */
1386 for (o = op->operands; *o; ++o)
1387 if (*o >= num_powerpc_operands)
1389 as_bad (_("operand index error for %s"),
1395 const struct powerpc_operand *operand = &powerpc_operands[*o];
1396 if (operand->shift >= 0)
1398 unsigned long mask = operand->bitm << operand->shift;
1401 as_bad (_("operand %d overlap in %s"),
1402 (int) (o - op->operands), op->name);
1410 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1411 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1412 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1413 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1414 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1415 && ((ppc_cpu & PPC_OPCODE_POWER4) == 0
1416 || (op->flags & PPC_OPCODE_NOPOWER4) == 0))
1420 retval = hash_insert (ppc_hash, op->name, (void *) op);
1423 /* Ignore Power duplicates for -m601. */
1424 if ((ppc_cpu & PPC_OPCODE_601) != 0
1425 && (op->flags & PPC_OPCODE_POWER) != 0)
1428 as_bad (_("duplicate instruction %s"),
1435 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1436 for (op = powerpc_opcodes; op < op_end; op++)
1437 hash_insert (ppc_hash, op->name, (void *) op);
1439 /* Insert the macros into a hash table. */
1440 ppc_macro_hash = hash_new ();
1442 macro_end = powerpc_macros + powerpc_num_macros;
1443 for (macro = powerpc_macros; macro < macro_end; macro++)
1445 if ((macro->flags & ppc_cpu) != 0)
1449 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1450 if (retval != (const char *) NULL)
1452 as_bad (_("duplicate macro %s"), macro->name);
1462 /* This function is called when the assembler starts up. It is called
1463 after the options have been parsed and the output file has been
1471 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1474 /* Set the ELF flags if desired. */
1475 if (ppc_flags && !msolaris)
1476 bfd_set_private_flags (stdoutput, ppc_flags);
1479 ppc_setup_opcodes ();
1481 /* Tell the main code what the endianness is if it is not overridden
1483 if (!set_target_endian)
1485 set_target_endian = 1;
1486 target_big_endian = PPC_BIG_ENDIAN;
1490 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1492 /* Create dummy symbols to serve as initial csects. This forces the
1493 text csects to precede the data csects. These symbols will not
1495 ppc_text_csects = symbol_make ("dummy\001");
1496 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1497 ppc_data_csects = symbol_make ("dummy\001");
1498 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1503 ppc_current_section = text_section;
1504 ppc_previous_section = 0;
1513 if (ppc_apuinfo_list == NULL)
1516 /* Ok, so write the section info out. We have this layout:
1520 0 8 length of "APUinfo\0"
1521 4 (n*4) number of APU's (4 bytes each)
1524 20 APU#1 first APU's info
1525 24 APU#2 second APU's info
1530 asection *seg = now_seg;
1531 subsegT subseg = now_subseg;
1532 asection *apuinfo_secp = (asection *) NULL;
1535 /* Create the .PPC.EMB.apuinfo section. */
1536 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1537 bfd_set_section_flags (stdoutput,
1539 SEC_HAS_CONTENTS | SEC_READONLY);
1542 md_number_to_chars (p, (valueT) 8, 4);
1545 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1548 md_number_to_chars (p, (valueT) 2, 4);
1551 strcpy (p, "APUinfo");
1553 for (i = 0; i < ppc_apuinfo_num; i++)
1556 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1559 frag_align (2, 0, 0);
1561 /* We probably can't restore the current segment, for there likely
1564 subseg_set (seg, subseg);
1569 /* Insert an operand value into an instruction. */
1571 static unsigned long
1572 ppc_insert_operand (unsigned long insn,
1573 const struct powerpc_operand *operand,
1579 long min, max, right;
1581 max = operand->bitm;
1585 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1587 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1588 max = (max >> 1) & -right;
1589 min = ~max & -right;
1592 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1595 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1604 /* Some people write constants with the sign extension done by
1605 hand but only up to 32 bits. This shouldn't really be valid,
1606 but, to permit this code to assemble on a 64-bit host, we
1607 sign extend the 32-bit value to 64 bits if so doing makes the
1610 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1611 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1612 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1613 val = val - 0x80000000 - 0x80000000;
1615 /* Similarly, people write expressions like ~(1<<15), and expect
1616 this to be OK for a 32-bit unsigned value. */
1618 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1619 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1620 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1621 val = val + 0x80000000 + 0x80000000;
1625 || (val & (right - 1)) != 0)
1626 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1629 if (operand->insert)
1634 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1635 if (errmsg != (const char *) NULL)
1636 as_bad_where (file, line, errmsg);
1639 insn |= ((long) val & operand->bitm) << operand->shift;
1646 /* Parse @got, etc. and return the desired relocation. */
1647 static bfd_reloc_code_real_type
1648 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1652 unsigned int length : 8;
1653 unsigned int valid32 : 1;
1654 unsigned int valid64 : 1;
1663 const struct map_bfd *ptr;
1665 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1666 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1667 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1669 static const struct map_bfd mapping[] = {
1670 MAP ("l", BFD_RELOC_LO16),
1671 MAP ("h", BFD_RELOC_HI16),
1672 MAP ("ha", BFD_RELOC_HI16_S),
1673 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1674 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1675 MAP ("got", BFD_RELOC_16_GOTOFF),
1676 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1677 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1678 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1679 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1680 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1681 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1682 MAP ("copy", BFD_RELOC_PPC_COPY),
1683 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1684 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1685 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1686 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1687 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1688 MAP ("tls", BFD_RELOC_PPC_TLS),
1689 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1690 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1691 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1692 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1693 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1694 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1695 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1696 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1697 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1698 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1699 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1700 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1701 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1702 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1703 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1704 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1705 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1706 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1707 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1708 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1709 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1710 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1711 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1712 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1713 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1714 MAP32 ("fixup", BFD_RELOC_CTOR),
1715 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1716 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1717 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1718 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1719 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1720 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1721 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1722 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1723 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1724 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1725 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1726 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1727 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1728 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1729 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1730 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1731 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1732 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1733 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1734 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1735 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1736 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1737 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1738 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1739 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1740 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1741 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1742 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1743 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1744 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1745 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1746 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1747 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1748 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1749 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1750 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1751 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1752 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1753 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1754 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1755 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1759 return BFD_RELOC_UNUSED;
1761 for (ch = *str, str2 = ident;
1762 (str2 < ident + sizeof (ident) - 1
1763 && (ISALNUM (ch) || ch == '@'));
1766 *str2++ = TOLOWER (ch);
1773 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1774 if (ch == ptr->string[0]
1775 && len == ptr->length
1776 && memcmp (ident, ptr->string, ptr->length) == 0
1777 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1779 int reloc = ptr->reloc;
1782 if (exp_p->X_add_number != 0
1783 && (reloc == (int) BFD_RELOC_16_GOTOFF
1784 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1785 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1786 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1787 as_warn (_("identifier+constant@got means identifier@got+constant"));
1789 /* Now check for identifier@suffix+constant. */
1790 if (*str == '-' || *str == '+')
1792 char *orig_line = input_line_pointer;
1793 expressionS new_exp;
1795 input_line_pointer = str;
1796 expression (&new_exp);
1797 if (new_exp.X_op == O_constant)
1799 exp_p->X_add_number += new_exp.X_add_number;
1800 str = input_line_pointer;
1803 if (&input_line_pointer != str_p)
1804 input_line_pointer = orig_line;
1808 if (reloc == (int) BFD_RELOC_PPC64_TOC
1809 && exp_p->X_op == O_symbol
1810 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1812 /* Change the symbol so that the dummy .TOC. symbol can be
1813 omitted from the object file. */
1814 exp_p->X_add_symbol = &abs_symbol;
1817 return (bfd_reloc_code_real_type) reloc;
1820 return BFD_RELOC_UNUSED;
1823 /* Like normal .long/.short/.word, except support @got, etc.
1824 Clobbers input_line_pointer, checks end-of-line. */
1826 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1829 bfd_reloc_code_real_type reloc;
1831 if (is_it_end_of_statement ())
1833 demand_empty_rest_of_line ();
1840 if (exp.X_op == O_symbol
1841 && *input_line_pointer == '@'
1842 && (reloc = ppc_elf_suffix (&input_line_pointer,
1843 &exp)) != BFD_RELOC_UNUSED)
1845 reloc_howto_type *reloc_howto;
1848 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1849 size = bfd_get_reloc_size (reloc_howto);
1853 as_bad (_("%s relocations do not fit in %d bytes\n"),
1854 reloc_howto->name, nbytes);
1861 p = frag_more (nbytes);
1863 if (target_big_endian)
1864 offset = nbytes - size;
1865 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1870 emit_expr (&exp, (unsigned int) nbytes);
1872 while (*input_line_pointer++ == ',');
1874 /* Put terminator back into stream. */
1875 input_line_pointer--;
1876 demand_empty_rest_of_line ();
1879 /* Solaris pseduo op to change to the .rodata section. */
1881 ppc_elf_rdata (int xxx)
1883 char *save_line = input_line_pointer;
1884 static char section[] = ".rodata\n";
1886 /* Just pretend this is .section .rodata */
1887 input_line_pointer = section;
1888 obj_elf_section (xxx);
1890 input_line_pointer = save_line;
1893 /* Pseudo op to make file scope bss items. */
1895 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1908 name = input_line_pointer;
1909 c = get_symbol_end ();
1911 /* just after name is now '\0'. */
1912 p = input_line_pointer;
1915 if (*input_line_pointer != ',')
1917 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1918 ignore_rest_of_line ();
1922 input_line_pointer++; /* skip ',' */
1923 if ((size = get_absolute_expression ()) < 0)
1925 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1926 ignore_rest_of_line ();
1930 /* The third argument to .lcomm is the alignment. */
1931 if (*input_line_pointer != ',')
1935 ++input_line_pointer;
1936 align = get_absolute_expression ();
1939 as_warn (_("ignoring bad alignment"));
1945 symbolP = symbol_find_or_make (name);
1948 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1950 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1951 S_GET_NAME (symbolP));
1952 ignore_rest_of_line ();
1956 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1958 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1959 S_GET_NAME (symbolP),
1960 (long) S_GET_VALUE (symbolP),
1963 ignore_rest_of_line ();
1969 old_subsec = now_subseg;
1972 /* Convert to a power of 2 alignment. */
1973 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1976 as_bad (_("Common alignment not a power of 2"));
1977 ignore_rest_of_line ();
1984 record_alignment (bss_section, align2);
1985 subseg_set (bss_section, 0);
1987 frag_align (align2, 0, 0);
1988 if (S_GET_SEGMENT (symbolP) == bss_section)
1989 symbol_get_frag (symbolP)->fr_symbol = 0;
1990 symbol_set_frag (symbolP, frag_now);
1991 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1994 S_SET_SIZE (symbolP, size);
1995 S_SET_SEGMENT (symbolP, bss_section);
1996 subseg_set (old_sec, old_subsec);
1997 demand_empty_rest_of_line ();
2000 /* Validate any relocations emitted for -mrelocatable, possibly adding
2001 fixups for word relocations in writable segments, so we can adjust
2004 ppc_elf_validate_fix (fixS *fixp, segT seg)
2006 if (fixp->fx_done || fixp->fx_pcrel)
2015 case SHLIB_MRELOCATABLE:
2016 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2017 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2018 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2019 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2020 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2021 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2022 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2023 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2024 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2025 && (seg->flags & SEC_LOAD) != 0
2026 && strcmp (segment_name (seg), ".got2") != 0
2027 && strcmp (segment_name (seg), ".dtors") != 0
2028 && strcmp (segment_name (seg), ".ctors") != 0
2029 && strcmp (segment_name (seg), ".fixup") != 0
2030 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2031 && strcmp (segment_name (seg), ".eh_frame") != 0
2032 && strcmp (segment_name (seg), ".ex_shared") != 0)
2034 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2035 || fixp->fx_r_type != BFD_RELOC_CTOR)
2037 as_bad_where (fixp->fx_file, fixp->fx_line,
2038 _("Relocation cannot be done when using -mrelocatable"));
2045 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2046 function descriptor sym if the corresponding code sym is used. */
2049 ppc_frob_file_before_adjust (void)
2057 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2064 name = S_GET_NAME (symp);
2068 if (! S_IS_WEAK (symp)
2069 || S_IS_DEFINED (symp))
2072 len = strlen (name) + 1;
2073 dotname = xmalloc (len + 1);
2075 memcpy (dotname + 1, name, len);
2076 dotsym = symbol_find_noref (dotname, 1);
2078 if (dotsym != NULL && (symbol_used_p (dotsym)
2079 || symbol_used_in_reloc_p (dotsym)))
2080 symbol_mark_used (symp);
2084 toc = bfd_get_section_by_name (stdoutput, ".toc");
2086 && bfd_section_size (stdoutput, toc) > 0x10000)
2087 as_warn (_("TOC section size exceeds 64k"));
2089 /* Don't emit .TOC. symbol. */
2090 symp = symbol_find (".TOC.");
2092 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2094 #endif /* OBJ_ELF */
2099 * Summary of parse_toc_entry.
2101 * in: Input_line_pointer points to the '[' in one of:
2103 * [toc] [tocv] [toc32] [toc64]
2105 * Anything else is an error of one kind or another.
2108 * return value: success or failure
2109 * toc_kind: kind of toc reference
2110 * input_line_pointer:
2111 * success: first char after the ']'
2112 * failure: unchanged
2116 * [toc] - rv == success, toc_kind = default_toc
2117 * [tocv] - rv == success, toc_kind = data_in_toc
2118 * [toc32] - rv == success, toc_kind = must_be_32
2119 * [toc64] - rv == success, toc_kind = must_be_64
2123 enum toc_size_qualifier
2125 default_toc, /* The toc cell constructed should be the system default size */
2126 data_in_toc, /* This is a direct reference to a toc cell */
2127 must_be_32, /* The toc cell constructed must be 32 bits wide */
2128 must_be_64 /* The toc cell constructed must be 64 bits wide */
2132 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2137 enum toc_size_qualifier t;
2139 /* Save the input_line_pointer. */
2140 start = input_line_pointer;
2142 /* Skip over the '[' , and whitespace. */
2143 ++input_line_pointer;
2146 /* Find the spelling of the operand. */
2147 toc_spec = input_line_pointer;
2148 c = get_symbol_end ();
2150 if (strcmp (toc_spec, "toc") == 0)
2154 else if (strcmp (toc_spec, "tocv") == 0)
2158 else if (strcmp (toc_spec, "toc32") == 0)
2162 else if (strcmp (toc_spec, "toc64") == 0)
2168 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2169 *input_line_pointer = c;
2170 input_line_pointer = start;
2174 /* Now find the ']'. */
2175 *input_line_pointer = c;
2177 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2178 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2182 as_bad (_("syntax error: expected `]', found `%c'"), c);
2183 input_line_pointer = start;
2194 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2196 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2200 /* Check we don't already exist. */
2201 for (i = 0; i < ppc_apuinfo_num; i++)
2202 if (ppc_apuinfo_list[i] == APUID (apu, version))
2205 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2207 if (ppc_apuinfo_num_alloc == 0)
2209 ppc_apuinfo_num_alloc = 4;
2210 ppc_apuinfo_list = (unsigned long *)
2211 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2215 ppc_apuinfo_num_alloc += 4;
2216 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2217 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2220 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2226 /* We need to keep a list of fixups. We can't simply generate them as
2227 we go, because that would require us to first create the frag, and
2228 that would screw up references to ``.''. */
2234 bfd_reloc_code_real_type reloc;
2237 #define MAX_INSN_FIXUPS (5)
2239 /* This routine is called for each instruction to be assembled. */
2242 md_assemble (char *str)
2245 const struct powerpc_opcode *opcode;
2247 const unsigned char *opindex_ptr;
2251 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2257 bfd_reloc_code_real_type reloc;
2260 /* Get the opcode. */
2261 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2266 /* Look up the opcode in the hash table. */
2267 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2268 if (opcode == (const struct powerpc_opcode *) NULL)
2270 const struct powerpc_macro *macro;
2272 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2273 if (macro == (const struct powerpc_macro *) NULL)
2274 as_bad (_("Unrecognized opcode: `%s'"), str);
2276 ppc_macro (s, macro);
2281 insn = opcode->opcode;
2284 while (ISSPACE (*str))
2287 /* PowerPC operands are just expressions. The only real issue is
2288 that a few operand types are optional. All cases which might use
2289 an optional operand separate the operands only with commas (in some
2290 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2291 have optional operands). Most instructions with optional operands
2292 have only one. Those that have more than one optional operand can
2293 take either all their operands or none. So, before we start seriously
2294 parsing the operands, we check to see if we have optional operands,
2295 and if we do, we count the number of commas to see which operands
2296 have been omitted. */
2298 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2300 const struct powerpc_operand *operand;
2302 operand = &powerpc_operands[*opindex_ptr];
2303 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2305 unsigned int opcount;
2306 unsigned int num_operands_expected;
2309 /* There is an optional operand. Count the number of
2310 commas in the input line. */
2317 while ((s = strchr (s, ',')) != (char *) NULL)
2324 /* Compute the number of expected operands.
2325 Do not count fake operands. */
2326 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2327 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2328 ++ num_operands_expected;
2330 /* If there are fewer operands in the line then are called
2331 for by the instruction, we want to skip the optional
2333 if (opcount < num_operands_expected)
2340 /* Gather the operands. */
2344 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2346 const struct powerpc_operand *operand;
2352 if (next_opindex == 0)
2353 operand = &powerpc_operands[*opindex_ptr];
2356 operand = &powerpc_operands[next_opindex];
2361 /* If this is a fake operand, then we do not expect anything
2363 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2365 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2366 if (errmsg != (const char *) NULL)
2371 /* If this is an optional operand, and we are skipping it, just
2373 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2376 if (operand->insert)
2378 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2379 if (errmsg != (const char *) NULL)
2382 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2383 next_opindex = *opindex_ptr + 1;
2387 /* Gather the operand. */
2388 hold = input_line_pointer;
2389 input_line_pointer = str;
2392 if (*input_line_pointer == '[')
2394 /* We are expecting something like the second argument here:
2396 * lwz r4,[toc].GS.0.static_int(rtoc)
2397 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2398 * The argument following the `]' must be a symbol name, and the
2399 * register must be the toc register: 'rtoc' or '2'
2401 * The effect is to 0 as the displacement field
2402 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2403 * the appropriate variation) reloc against it based on the symbol.
2404 * The linker will build the toc, and insert the resolved toc offset.
2407 * o The size of the toc entry is currently assumed to be
2408 * 32 bits. This should not be assumed to be a hard coded
2410 * o In an effort to cope with a change from 32 to 64 bits,
2411 * there are also toc entries that are specified to be
2412 * either 32 or 64 bits:
2413 * lwz r4,[toc32].GS.0.static_int(rtoc)
2414 * lwz r4,[toc64].GS.0.static_int(rtoc)
2415 * These demand toc entries of the specified size, and the
2416 * instruction probably requires it.
2420 enum toc_size_qualifier toc_kind;
2421 bfd_reloc_code_real_type toc_reloc;
2423 /* Go parse off the [tocXX] part. */
2424 valid_toc = parse_toc_entry (&toc_kind);
2428 /* Note: message has already been issued.
2429 FIXME: what sort of recovery should we do?
2430 demand_rest_of_line (); return; ? */
2433 /* Now get the symbol following the ']'. */
2439 /* In this case, we may not have seen the symbol yet,
2440 since it is allowed to appear on a .extern or .globl
2441 or just be a label in the .data section. */
2442 toc_reloc = BFD_RELOC_PPC_TOC16;
2445 /* 1. The symbol must be defined and either in the toc
2446 section, or a global.
2447 2. The reloc generated must have the TOCDEFN flag set
2448 in upper bit mess of the reloc type.
2449 FIXME: It's a little confusing what the tocv
2450 qualifier can be used for. At the very least, I've
2451 seen three uses, only one of which I'm sure I can
2453 if (ex.X_op == O_symbol)
2455 assert (ex.X_add_symbol != NULL);
2456 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2459 as_bad (_("[tocv] symbol is not a toc symbol"));
2463 toc_reloc = BFD_RELOC_PPC_TOC16;
2466 /* FIXME: these next two specifically specify 32/64 bit
2467 toc entries. We don't support them today. Is this
2468 the right way to say that? */
2469 toc_reloc = BFD_RELOC_UNUSED;
2470 as_bad (_("Unimplemented toc32 expression modifier"));
2473 /* FIXME: see above. */
2474 toc_reloc = BFD_RELOC_UNUSED;
2475 as_bad (_("Unimplemented toc64 expression modifier"));
2479 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2485 /* We need to generate a fixup for this expression. */
2486 if (fc >= MAX_INSN_FIXUPS)
2487 as_fatal (_("too many fixups"));
2489 fixups[fc].reloc = toc_reloc;
2490 fixups[fc].exp = ex;
2491 fixups[fc].opindex = *opindex_ptr;
2494 /* Ok. We've set up the fixup for the instruction. Now make it
2495 look like the constant 0 was found here. */
2497 ex.X_op = O_constant;
2498 ex.X_add_number = 0;
2499 ex.X_add_symbol = NULL;
2500 ex.X_op_symbol = NULL;
2506 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2507 || !register_name (&ex))
2509 char save_lex = lex_type['%'];
2511 if ((operand->flags & PPC_OPERAND_CR) != 0)
2514 lex_type['%'] |= LEX_BEGIN_NAME;
2518 lex_type['%'] = save_lex;
2522 str = input_line_pointer;
2523 input_line_pointer = hold;
2525 if (ex.X_op == O_illegal)
2526 as_bad (_("illegal operand"));
2527 else if (ex.X_op == O_absent)
2528 as_bad (_("missing operand"));
2529 else if (ex.X_op == O_register)
2531 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2532 ppc_cpu, (char *) NULL, 0);
2534 else if (ex.X_op == O_constant)
2537 /* Allow @HA, @L, @H on constants. */
2538 char *orig_str = str;
2540 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2547 case BFD_RELOC_LO16:
2548 /* X_unsigned is the default, so if the user has done
2549 something which cleared it, we always produce a
2551 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2552 ex.X_add_number &= 0xffff;
2554 ex.X_add_number = SEX16 (ex.X_add_number);
2557 case BFD_RELOC_HI16:
2558 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2559 ex.X_add_number = PPC_HI (ex.X_add_number);
2561 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2564 case BFD_RELOC_HI16_S:
2565 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2566 ex.X_add_number = PPC_HA (ex.X_add_number);
2568 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2571 case BFD_RELOC_PPC64_HIGHER:
2572 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2573 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2575 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2578 case BFD_RELOC_PPC64_HIGHER_S:
2579 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2580 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2582 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2585 case BFD_RELOC_PPC64_HIGHEST:
2586 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2587 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2589 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2592 case BFD_RELOC_PPC64_HIGHEST_S:
2593 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2594 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2596 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2599 #endif /* OBJ_ELF */
2600 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2601 ppc_cpu, (char *) NULL, 0);
2604 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2606 /* Some TLS tweaks. */
2611 case BFD_RELOC_PPC_TLS:
2612 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2613 ppc_cpu, (char *) NULL, 0);
2615 /* We'll only use the 32 (or 64) bit form of these relocations
2616 in constants. Instructions get the 16 bit form. */
2617 case BFD_RELOC_PPC_DTPREL:
2618 reloc = BFD_RELOC_PPC_DTPREL16;
2620 case BFD_RELOC_PPC_TPREL:
2621 reloc = BFD_RELOC_PPC_TPREL16;
2625 /* For the absolute forms of branches, convert the PC
2626 relative form back into the absolute. */
2627 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2631 case BFD_RELOC_PPC_B26:
2632 reloc = BFD_RELOC_PPC_BA26;
2634 case BFD_RELOC_PPC_B16:
2635 reloc = BFD_RELOC_PPC_BA16;
2637 case BFD_RELOC_PPC_B16_BRTAKEN:
2638 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2640 case BFD_RELOC_PPC_B16_BRNTAKEN:
2641 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2649 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2654 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2656 case BFD_RELOC_LO16:
2657 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2659 case BFD_RELOC_16_GOTOFF:
2660 reloc = BFD_RELOC_PPC64_GOT16_DS;
2662 case BFD_RELOC_LO16_GOTOFF:
2663 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2665 case BFD_RELOC_LO16_PLTOFF:
2666 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2668 case BFD_RELOC_16_BASEREL:
2669 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2671 case BFD_RELOC_LO16_BASEREL:
2672 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2674 case BFD_RELOC_PPC_TOC16:
2675 reloc = BFD_RELOC_PPC64_TOC16_DS;
2677 case BFD_RELOC_PPC64_TOC16_LO:
2678 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2680 case BFD_RELOC_PPC64_PLTGOT16:
2681 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2683 case BFD_RELOC_PPC64_PLTGOT16_LO:
2684 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2686 case BFD_RELOC_PPC_DTPREL16:
2687 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2689 case BFD_RELOC_PPC_DTPREL16_LO:
2690 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2692 case BFD_RELOC_PPC_TPREL16:
2693 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2695 case BFD_RELOC_PPC_TPREL16_LO:
2696 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2698 case BFD_RELOC_PPC_GOT_DTPREL16:
2699 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2700 case BFD_RELOC_PPC_GOT_TPREL16:
2701 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2704 as_bad (_("unsupported relocation for DS offset field"));
2709 /* We need to generate a fixup for this expression. */
2710 if (fc >= MAX_INSN_FIXUPS)
2711 as_fatal (_("too many fixups"));
2712 fixups[fc].exp = ex;
2713 fixups[fc].opindex = 0;
2714 fixups[fc].reloc = reloc;
2717 #endif /* OBJ_ELF */
2721 /* We need to generate a fixup for this expression. */
2722 if (fc >= MAX_INSN_FIXUPS)
2723 as_fatal (_("too many fixups"));
2724 fixups[fc].exp = ex;
2725 fixups[fc].opindex = *opindex_ptr;
2726 fixups[fc].reloc = BFD_RELOC_UNUSED;
2734 /* If expecting more operands, then we want to see "),". */
2735 if (*str == endc && opindex_ptr[1] != 0)
2739 while (ISSPACE (*str));
2743 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2751 /* The call to expression should have advanced str past any
2754 && (endc != ',' || *str != '\0'))
2756 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2764 while (ISSPACE (*str))
2768 as_bad (_("junk at end of line: `%s'"), str);
2771 /* Do we need/want a APUinfo section? */
2772 if (ppc_cpu & (PPC_OPCODE_SPE
2773 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2774 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2775 | PPC_OPCODE_RFMCI))
2777 /* These are all version "1". */
2778 if (opcode->flags & PPC_OPCODE_SPE)
2779 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2780 if (opcode->flags & PPC_OPCODE_ISEL)
2781 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2782 if (opcode->flags & PPC_OPCODE_EFS)
2783 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2784 if (opcode->flags & PPC_OPCODE_BRLOCK)
2785 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2786 if (opcode->flags & PPC_OPCODE_PMR)
2787 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2788 if (opcode->flags & PPC_OPCODE_CACHELCK)
2789 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2790 if (opcode->flags & PPC_OPCODE_RFMCI)
2791 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2795 /* Write out the instruction. */
2797 addr_mod = frag_now_fix () & 3;
2798 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2799 as_bad (_("instruction address is not a multiple of 4"));
2800 frag_now->insn_addr = addr_mod;
2801 frag_now->has_code = 1;
2802 md_number_to_chars (f, insn, 4);
2805 dwarf2_emit_insn (4);
2808 /* Create any fixups. At this point we do not use a
2809 bfd_reloc_code_real_type, but instead just use the
2810 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2811 handle fixups for any operand type, although that is admittedly
2812 not a very exciting feature. We pick a BFD reloc type in
2814 for (i = 0; i < fc; i++)
2816 const struct powerpc_operand *operand;
2818 operand = &powerpc_operands[fixups[i].opindex];
2819 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2821 reloc_howto_type *reloc_howto;
2826 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2830 size = bfd_get_reloc_size (reloc_howto);
2831 offset = target_big_endian ? (4 - size) : 0;
2833 if (size < 1 || size > 4)
2836 fixP = fix_new_exp (frag_now,
2837 f - frag_now->fr_literal + offset,
2840 reloc_howto->pc_relative,
2843 /* Turn off complaints that the addend is too large for things like
2845 switch (fixups[i].reloc)
2847 case BFD_RELOC_16_GOTOFF:
2848 case BFD_RELOC_PPC_TOC16:
2849 case BFD_RELOC_LO16:
2850 case BFD_RELOC_HI16:
2851 case BFD_RELOC_HI16_S:
2853 case BFD_RELOC_PPC64_HIGHER:
2854 case BFD_RELOC_PPC64_HIGHER_S:
2855 case BFD_RELOC_PPC64_HIGHEST:
2856 case BFD_RELOC_PPC64_HIGHEST_S:
2858 fixP->fx_no_overflow = 1;
2865 fix_new_exp (frag_now,
2866 f - frag_now->fr_literal,
2869 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2870 ((bfd_reloc_code_real_type)
2871 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2875 /* Handle a macro. Gather all the operands, transform them as
2876 described by the macro, and call md_assemble recursively. All the
2877 operands are separated by commas; we don't accept parentheses
2878 around operands here. */
2881 ppc_macro (char *str, const struct powerpc_macro *macro)
2892 /* Gather the users operands into the operands array. */
2897 if (count >= sizeof operands / sizeof operands[0])
2899 operands[count++] = s;
2900 s = strchr (s, ',');
2901 if (s == (char *) NULL)
2906 if (count != macro->operands)
2908 as_bad (_("wrong number of operands"));
2912 /* Work out how large the string must be (the size is unbounded
2913 because it includes user input). */
2915 format = macro->format;
2916 while (*format != '\0')
2925 arg = strtol (format + 1, &send, 10);
2926 know (send != format && arg < count);
2927 len += strlen (operands[arg]);
2932 /* Put the string together. */
2933 complete = s = (char *) alloca (len + 1);
2934 format = macro->format;
2935 while (*format != '\0')
2941 arg = strtol (format + 1, &send, 10);
2942 strcpy (s, operands[arg]);
2949 /* Assemble the constructed instruction. */
2950 md_assemble (complete);
2954 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2957 ppc_section_letter (int letter, char **ptr_msg)
2962 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2967 ppc_section_word (char *str, size_t len)
2969 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2976 ppc_section_type (char *str, size_t len)
2978 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2985 ppc_section_flags (int flags, int attr, int type)
2987 if (type == SHT_ORDERED)
2988 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2990 if (attr & SHF_EXCLUDE)
2991 flags |= SEC_EXCLUDE;
2995 #endif /* OBJ_ELF */
2998 /* Pseudo-op handling. */
3000 /* The .byte pseudo-op. This is similar to the normal .byte
3001 pseudo-op, but it can also take a single ASCII string. */
3004 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3006 if (*input_line_pointer != '\"')
3012 /* Gather characters. A real double quote is doubled. Unusual
3013 characters are not permitted. */
3014 ++input_line_pointer;
3019 c = *input_line_pointer++;
3023 if (*input_line_pointer != '\"')
3025 ++input_line_pointer;
3028 FRAG_APPEND_1_CHAR (c);
3031 demand_empty_rest_of_line ();
3036 /* XCOFF specific pseudo-op handling. */
3038 /* This is set if we are creating a .stabx symbol, since we don't want
3039 to handle symbol suffixes for such symbols. */
3040 static bfd_boolean ppc_stab_symbol;
3042 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3043 symbols in the .bss segment as though they were local common
3044 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3045 aligns .comm and .lcomm to 4 bytes. */
3048 ppc_comm (int lcomm)
3050 asection *current_seg = now_seg;
3051 subsegT current_subseg = now_subseg;
3057 symbolS *lcomm_sym = NULL;
3061 name = input_line_pointer;
3062 endc = get_symbol_end ();
3063 end_name = input_line_pointer;
3066 if (*input_line_pointer != ',')
3068 as_bad (_("missing size"));
3069 ignore_rest_of_line ();
3072 ++input_line_pointer;
3074 size = get_absolute_expression ();
3077 as_bad (_("negative size"));
3078 ignore_rest_of_line ();
3084 /* The third argument to .comm is the alignment. */
3085 if (*input_line_pointer != ',')
3089 ++input_line_pointer;
3090 align = get_absolute_expression ();
3093 as_warn (_("ignoring bad alignment"));
3108 /* The third argument to .lcomm appears to be the real local
3109 common symbol to create. References to the symbol named in
3110 the first argument are turned into references to the third
3112 if (*input_line_pointer != ',')
3114 as_bad (_("missing real symbol name"));
3115 ignore_rest_of_line ();
3118 ++input_line_pointer;
3120 lcomm_name = input_line_pointer;
3121 lcomm_endc = get_symbol_end ();
3123 lcomm_sym = symbol_find_or_make (lcomm_name);
3125 *input_line_pointer = lcomm_endc;
3129 sym = symbol_find_or_make (name);
3132 if (S_IS_DEFINED (sym)
3133 || S_GET_VALUE (sym) != 0)
3135 as_bad (_("attempt to redefine symbol"));
3136 ignore_rest_of_line ();
3140 record_alignment (bss_section, align);
3143 || ! S_IS_DEFINED (lcomm_sym))
3152 S_SET_EXTERNAL (sym);
3156 symbol_get_tc (lcomm_sym)->output = 1;
3157 def_sym = lcomm_sym;
3161 subseg_set (bss_section, 1);
3162 frag_align (align, 0, 0);
3164 symbol_set_frag (def_sym, frag_now);
3165 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3166 def_size, (char *) NULL);
3168 S_SET_SEGMENT (def_sym, bss_section);
3169 symbol_get_tc (def_sym)->align = align;
3173 /* Align the size of lcomm_sym. */
3174 symbol_get_frag (lcomm_sym)->fr_offset =
3175 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3176 &~ ((1 << align) - 1));
3177 if (align > symbol_get_tc (lcomm_sym)->align)
3178 symbol_get_tc (lcomm_sym)->align = align;
3183 /* Make sym an offset from lcomm_sym. */
3184 S_SET_SEGMENT (sym, bss_section);
3185 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3186 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3187 symbol_get_frag (lcomm_sym)->fr_offset += size;
3190 subseg_set (current_seg, current_subseg);
3192 demand_empty_rest_of_line ();
3195 /* The .csect pseudo-op. This switches us into a different
3196 subsegment. The first argument is a symbol whose value is the
3197 start of the .csect. In COFF, csect symbols get special aux
3198 entries defined by the x_csect field of union internal_auxent. The
3199 optional second argument is the alignment (the default is 2). */
3202 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3209 name = input_line_pointer;
3210 endc = get_symbol_end ();
3212 sym = symbol_find_or_make (name);
3214 *input_line_pointer = endc;
3216 if (S_GET_NAME (sym)[0] == '\0')
3218 /* An unnamed csect is assumed to be [PR]. */
3219 symbol_get_tc (sym)->class = XMC_PR;
3223 if (*input_line_pointer == ',')
3225 ++input_line_pointer;
3226 align = get_absolute_expression ();
3229 ppc_change_csect (sym, align);
3231 demand_empty_rest_of_line ();
3234 /* Change to a different csect. */
3237 ppc_change_csect (symbolS *sym, offsetT align)
3239 if (S_IS_DEFINED (sym))
3240 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3250 /* This is a new csect. We need to look at the symbol class to
3251 figure out whether it should go in the text section or the
3255 switch (symbol_get_tc (sym)->class)
3265 S_SET_SEGMENT (sym, text_section);
3266 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3267 ++ppc_text_subsegment;
3268 list_ptr = &ppc_text_csects;
3278 if (ppc_toc_csect != NULL
3279 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3280 == ppc_data_subsegment))
3282 S_SET_SEGMENT (sym, data_section);
3283 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3284 ++ppc_data_subsegment;
3285 list_ptr = &ppc_data_csects;
3291 /* We set the obstack chunk size to a small value before
3292 changing subsegments, so that we don't use a lot of memory
3293 space for what may be a small section. */
3294 hold_chunksize = chunksize;
3297 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3298 symbol_get_tc (sym)->subseg);
3300 chunksize = hold_chunksize;
3303 ppc_after_toc_frag = frag_now;
3305 record_alignment (sec, align);
3307 frag_align_code (align, 0);
3309 frag_align (align, 0, 0);
3311 symbol_set_frag (sym, frag_now);
3312 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3314 symbol_get_tc (sym)->align = align;
3315 symbol_get_tc (sym)->output = 1;
3316 symbol_get_tc (sym)->within = sym;
3318 for (list = *list_ptr;
3319 symbol_get_tc (list)->next != (symbolS *) NULL;
3320 list = symbol_get_tc (list)->next)
3322 symbol_get_tc (list)->next = sym;
3324 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3325 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3329 ppc_current_csect = sym;
3332 /* This function handles the .text and .data pseudo-ops. These
3333 pseudo-ops aren't really used by XCOFF; we implement them for the
3334 convenience of people who aren't used to XCOFF. */
3337 ppc_section (int type)
3344 else if (type == 'd')
3349 sym = symbol_find_or_make (name);
3351 ppc_change_csect (sym, 2);
3353 demand_empty_rest_of_line ();
3356 /* This function handles the .section pseudo-op. This is mostly to
3357 give an error, since XCOFF only supports .text, .data and .bss, but
3358 we do permit the user to name the text or data section. */
3361 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3364 const char *real_name;
3368 user_name = input_line_pointer;
3369 c = get_symbol_end ();
3371 if (strcmp (user_name, ".text") == 0)
3372 real_name = ".text[PR]";
3373 else if (strcmp (user_name, ".data") == 0)
3374 real_name = ".data[RW]";
3377 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3378 *input_line_pointer = c;
3379 ignore_rest_of_line ();
3383 *input_line_pointer = c;
3385 sym = symbol_find_or_make (real_name);
3387 ppc_change_csect (sym, 2);
3389 demand_empty_rest_of_line ();
3392 /* The .extern pseudo-op. We create an undefined symbol. */
3395 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3400 name = input_line_pointer;
3401 endc = get_symbol_end ();
3403 (void) symbol_find_or_make (name);
3405 *input_line_pointer = endc;
3407 demand_empty_rest_of_line ();
3410 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3413 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3419 name = input_line_pointer;
3420 endc = get_symbol_end ();
3422 sym = symbol_find_or_make (name);
3424 *input_line_pointer = endc;
3426 symbol_get_tc (sym)->output = 1;
3428 demand_empty_rest_of_line ();
3431 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3432 although I don't know why it bothers. */
3435 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3442 name = input_line_pointer;
3443 endc = get_symbol_end ();
3445 sym = symbol_find_or_make (name);
3447 *input_line_pointer = endc;
3449 if (*input_line_pointer != ',')
3451 as_bad (_("missing rename string"));
3452 ignore_rest_of_line ();
3455 ++input_line_pointer;
3457 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3459 demand_empty_rest_of_line ();
3462 /* The .stabx pseudo-op. This is similar to a normal .stabs
3463 pseudo-op, but slightly different. A sample is
3464 .stabx "main:F-1",.main,142,0
3465 The first argument is the symbol name to create. The second is the
3466 value, and the third is the storage class. The fourth seems to be
3467 always zero, and I am assuming it is the type. */
3470 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3477 name = demand_copy_C_string (&len);
3479 if (*input_line_pointer != ',')
3481 as_bad (_("missing value"));
3484 ++input_line_pointer;
3486 ppc_stab_symbol = TRUE;
3487 sym = symbol_make (name);
3488 ppc_stab_symbol = FALSE;
3490 symbol_get_tc (sym)->real_name = name;
3492 (void) expression (&exp);
3499 as_bad (_("illegal .stabx expression; zero assumed"));
3500 exp.X_add_number = 0;
3503 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3504 symbol_set_frag (sym, &zero_address_frag);
3508 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3509 symbol_set_value_expression (sym, &exp);
3513 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3514 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3519 /* The value is some complex expression. This will probably
3520 fail at some later point, but this is probably the right
3521 thing to do here. */
3522 symbol_set_value_expression (sym, &exp);
3526 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3527 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3529 if (*input_line_pointer != ',')
3531 as_bad (_("missing class"));
3534 ++input_line_pointer;
3536 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3538 if (*input_line_pointer != ',')
3540 as_bad (_("missing type"));
3543 ++input_line_pointer;
3545 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3547 symbol_get_tc (sym)->output = 1;
3549 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3551 symbol_get_tc (sym)->within = ppc_current_block;
3556 .stabx "z",arrays_,133,0
3559 .comm arrays_,13768,3
3561 resolve_symbol_value will copy the exp's "within" into sym's when the
3562 offset is 0. Since this seems to be corner case problem,
3563 only do the correction for storage class C_STSYM. A better solution
3564 would be to have the tc field updated in ppc_symbol_new_hook. */
3566 if (exp.X_op == O_symbol)
3568 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3572 if (exp.X_op != O_symbol
3573 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3574 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3575 ppc_frob_label (sym);
3578 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3579 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3580 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3581 symbol_get_tc (ppc_current_csect)->within = sym;
3584 demand_empty_rest_of_line ();
3587 /* The .function pseudo-op. This takes several arguments. The first
3588 argument seems to be the external name of the symbol. The second
3589 argument seems to be the label for the start of the function. gcc
3590 uses the same name for both. I have no idea what the third and
3591 fourth arguments are meant to be. The optional fifth argument is
3592 an expression for the size of the function. In COFF this symbol
3593 gets an aux entry like that used for a csect. */
3596 ppc_function (int ignore ATTRIBUTE_UNUSED)
3604 name = input_line_pointer;
3605 endc = get_symbol_end ();
3607 /* Ignore any [PR] suffix. */
3608 name = ppc_canonicalize_symbol_name (name);
3609 s = strchr (name, '[');
3610 if (s != (char *) NULL
3611 && strcmp (s + 1, "PR]") == 0)
3614 ext_sym = symbol_find_or_make (name);
3616 *input_line_pointer = endc;
3618 if (*input_line_pointer != ',')
3620 as_bad (_("missing symbol name"));
3621 ignore_rest_of_line ();
3624 ++input_line_pointer;
3626 name = input_line_pointer;
3627 endc = get_symbol_end ();
3629 lab_sym = symbol_find_or_make (name);
3631 *input_line_pointer = endc;
3633 if (ext_sym != lab_sym)
3637 exp.X_op = O_symbol;
3638 exp.X_add_symbol = lab_sym;
3639 exp.X_op_symbol = NULL;
3640 exp.X_add_number = 0;
3642 symbol_set_value_expression (ext_sym, &exp);
3645 if (symbol_get_tc (ext_sym)->class == -1)
3646 symbol_get_tc (ext_sym)->class = XMC_PR;
3647 symbol_get_tc (ext_sym)->output = 1;
3649 if (*input_line_pointer == ',')
3653 /* Ignore the third argument. */
3654 ++input_line_pointer;
3655 expression (&ignore);
3656 if (*input_line_pointer == ',')
3658 /* Ignore the fourth argument. */
3659 ++input_line_pointer;
3660 expression (&ignore);
3661 if (*input_line_pointer == ',')
3663 /* The fifth argument is the function size. */
3664 ++input_line_pointer;
3665 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3668 &zero_address_frag);
3669 pseudo_set (symbol_get_tc (ext_sym)->size);
3674 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3675 SF_SET_FUNCTION (ext_sym);
3676 SF_SET_PROCESS (ext_sym);
3677 coff_add_linesym (ext_sym);
3679 demand_empty_rest_of_line ();
3682 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3683 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3684 with the correct line number */
3686 static symbolS *saved_bi_sym = 0;
3689 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3693 sym = symbol_make (".bf");
3694 S_SET_SEGMENT (sym, text_section);
3695 symbol_set_frag (sym, frag_now);
3696 S_SET_VALUE (sym, frag_now_fix ());
3697 S_SET_STORAGE_CLASS (sym, C_FCN);
3699 coff_line_base = get_absolute_expression ();
3701 S_SET_NUMBER_AUXILIARY (sym, 1);
3702 SA_SET_SYM_LNNO (sym, coff_line_base);
3704 /* Line number for bi. */
3707 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3712 symbol_get_tc (sym)->output = 1;
3714 ppc_frob_label (sym);
3716 demand_empty_rest_of_line ();
3719 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3720 ".ef", except that the line number is absolute, not relative to the
3721 most recent ".bf" symbol. */
3724 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3728 sym = symbol_make (".ef");
3729 S_SET_SEGMENT (sym, text_section);
3730 symbol_set_frag (sym, frag_now);
3731 S_SET_VALUE (sym, frag_now_fix ());
3732 S_SET_STORAGE_CLASS (sym, C_FCN);
3733 S_SET_NUMBER_AUXILIARY (sym, 1);
3734 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3735 symbol_get_tc (sym)->output = 1;
3737 ppc_frob_label (sym);
3739 demand_empty_rest_of_line ();
3742 /* The .bi and .ei pseudo-ops. These take a string argument and
3743 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3744 the symbol list. The value of .bi will be know when the next .bf
3750 static symbolS *last_biei;
3757 name = demand_copy_C_string (&len);
3759 /* The value of these symbols is actually file offset. Here we set
3760 the value to the index into the line number entries. In
3761 ppc_frob_symbols we set the fix_line field, which will cause BFD
3762 to do the right thing. */
3764 sym = symbol_make (name);
3765 /* obj-coff.c currently only handles line numbers correctly in the
3767 S_SET_SEGMENT (sym, text_section);
3768 S_SET_VALUE (sym, coff_n_line_nos);
3769 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3771 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3772 symbol_get_tc (sym)->output = 1;
3780 for (look = last_biei ? last_biei : symbol_rootP;
3781 (look != (symbolS *) NULL
3782 && (S_GET_STORAGE_CLASS (look) == C_FILE
3783 || S_GET_STORAGE_CLASS (look) == C_BINCL
3784 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3785 look = symbol_next (look))
3787 if (look != (symbolS *) NULL)
3789 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3790 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3794 demand_empty_rest_of_line ();
3797 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3798 There is one argument, which is a csect symbol. The value of the
3799 .bs symbol is the index of this csect symbol. */
3802 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3809 if (ppc_current_block != NULL)
3810 as_bad (_("nested .bs blocks"));
3812 name = input_line_pointer;
3813 endc = get_symbol_end ();
3815 csect = symbol_find_or_make (name);
3817 *input_line_pointer = endc;
3819 sym = symbol_make (".bs");
3820 S_SET_SEGMENT (sym, now_seg);
3821 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3822 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3823 symbol_get_tc (sym)->output = 1;
3825 symbol_get_tc (sym)->within = csect;
3827 ppc_frob_label (sym);
3829 ppc_current_block = sym;
3831 demand_empty_rest_of_line ();
3834 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3837 ppc_es (int ignore ATTRIBUTE_UNUSED)
3841 if (ppc_current_block == NULL)
3842 as_bad (_(".es without preceding .bs"));
3844 sym = symbol_make (".es");
3845 S_SET_SEGMENT (sym, now_seg);
3846 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3847 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3848 symbol_get_tc (sym)->output = 1;
3850 ppc_frob_label (sym);
3852 ppc_current_block = NULL;
3854 demand_empty_rest_of_line ();
3857 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3861 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3865 sym = symbol_make (".bb");
3866 S_SET_SEGMENT (sym, text_section);
3867 symbol_set_frag (sym, frag_now);
3868 S_SET_VALUE (sym, frag_now_fix ());
3869 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3871 S_SET_NUMBER_AUXILIARY (sym, 1);
3872 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3874 symbol_get_tc (sym)->output = 1;
3876 SF_SET_PROCESS (sym);
3878 ppc_frob_label (sym);
3880 demand_empty_rest_of_line ();
3883 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3887 ppc_eb (int ignore ATTRIBUTE_UNUSED)
3891 sym = symbol_make (".eb");
3892 S_SET_SEGMENT (sym, text_section);
3893 symbol_set_frag (sym, frag_now);
3894 S_SET_VALUE (sym, frag_now_fix ());
3895 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3896 S_SET_NUMBER_AUXILIARY (sym, 1);
3897 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3898 symbol_get_tc (sym)->output = 1;
3900 SF_SET_PROCESS (sym);
3902 ppc_frob_label (sym);
3904 demand_empty_rest_of_line ();
3907 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3911 ppc_bc (int ignore ATTRIBUTE_UNUSED)
3917 name = demand_copy_C_string (&len);
3918 sym = symbol_make (name);
3919 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3920 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3921 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3922 S_SET_VALUE (sym, 0);
3923 symbol_get_tc (sym)->output = 1;
3925 ppc_frob_label (sym);
3927 demand_empty_rest_of_line ();
3930 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3933 ppc_ec (int ignore ATTRIBUTE_UNUSED)
3937 sym = symbol_make (".ec");
3938 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3939 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3940 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3941 S_SET_VALUE (sym, 0);
3942 symbol_get_tc (sym)->output = 1;
3944 ppc_frob_label (sym);
3946 demand_empty_rest_of_line ();
3949 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3952 ppc_toc (int ignore ATTRIBUTE_UNUSED)
3954 if (ppc_toc_csect != (symbolS *) NULL)
3955 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3962 subseg = ppc_data_subsegment;
3963 ++ppc_data_subsegment;
3965 subseg_new (segment_name (data_section), subseg);
3966 ppc_toc_frag = frag_now;
3968 sym = symbol_find_or_make ("TOC[TC0]");
3969 symbol_set_frag (sym, frag_now);
3970 S_SET_SEGMENT (sym, data_section);
3971 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3972 symbol_get_tc (sym)->subseg = subseg;
3973 symbol_get_tc (sym)->output = 1;
3974 symbol_get_tc (sym)->within = sym;
3976 ppc_toc_csect = sym;
3978 for (list = ppc_data_csects;
3979 symbol_get_tc (list)->next != (symbolS *) NULL;
3980 list = symbol_get_tc (list)->next)
3982 symbol_get_tc (list)->next = sym;
3984 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3985 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3989 ppc_current_csect = ppc_toc_csect;
3991 demand_empty_rest_of_line ();
3994 /* The AIX assembler automatically aligns the operands of a .long or
3995 .short pseudo-op, and we want to be compatible. */
3998 ppc_xcoff_cons (int log_size)
4000 frag_align (log_size, 0, 0);
4001 record_alignment (now_seg, log_size);
4002 cons (1 << log_size);
4006 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4011 (void) expression (&exp);
4013 if (exp.X_op != O_constant)
4015 as_bad (_("non-constant byte count"));
4019 byte_count = exp.X_add_number;
4021 if (*input_line_pointer != ',')
4023 as_bad (_("missing value"));
4027 ++input_line_pointer;
4031 #endif /* OBJ_XCOFF */
4032 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4034 /* The .tc pseudo-op. This is used when generating either XCOFF or
4035 ELF. This takes two or more arguments.
4037 When generating XCOFF output, the first argument is the name to
4038 give to this location in the toc; this will be a symbol with class
4039 TC. The rest of the arguments are N-byte values to actually put at
4040 this location in the TOC; often there is just one more argument, a
4041 relocatable symbol reference. The size of the value to store
4042 depends on target word size. A 32-bit target uses 4-byte values, a
4043 64-bit target uses 8-byte values.
4045 When not generating XCOFF output, the arguments are the same, but
4046 the first argument is simply ignored. */
4049 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4053 /* Define the TOC symbol name. */
4059 if (ppc_toc_csect == (symbolS *) NULL
4060 || ppc_toc_csect != ppc_current_csect)
4062 as_bad (_(".tc not in .toc section"));
4063 ignore_rest_of_line ();
4067 name = input_line_pointer;
4068 endc = get_symbol_end ();
4070 sym = symbol_find_or_make (name);
4072 *input_line_pointer = endc;
4074 if (S_IS_DEFINED (sym))
4078 label = symbol_get_tc (ppc_current_csect)->within;
4079 if (symbol_get_tc (label)->class != XMC_TC0)
4081 as_bad (_(".tc with no label"));
4082 ignore_rest_of_line ();
4086 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4087 symbol_set_frag (label, symbol_get_frag (sym));
4088 S_SET_VALUE (label, S_GET_VALUE (sym));
4090 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4091 ++input_line_pointer;
4096 S_SET_SEGMENT (sym, now_seg);
4097 symbol_set_frag (sym, frag_now);
4098 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4099 symbol_get_tc (sym)->class = XMC_TC;
4100 symbol_get_tc (sym)->output = 1;
4102 ppc_frob_label (sym);
4105 #endif /* OBJ_XCOFF */
4109 /* Skip the TOC symbol name. */
4110 while (is_part_of_name (*input_line_pointer)
4111 || *input_line_pointer == ' '
4112 || *input_line_pointer == '['
4113 || *input_line_pointer == ']'
4114 || *input_line_pointer == '{'
4115 || *input_line_pointer == '}')
4116 ++input_line_pointer;
4118 /* Align to a four/eight byte boundary. */
4119 align = ppc_obj64 ? 3 : 2;
4120 frag_align (align, 0, 0);
4121 record_alignment (now_seg, align);
4122 #endif /* OBJ_ELF */
4124 if (*input_line_pointer != ',')
4125 demand_empty_rest_of_line ();
4128 ++input_line_pointer;
4129 cons (ppc_obj64 ? 8 : 4);
4133 /* Pseudo-op .machine. */
4136 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4139 #define MAX_HISTORY 100
4140 static ppc_cpu_t *cpu_history;
4141 static int curr_hist;
4145 if (*input_line_pointer == '"')
4148 cpu_string = demand_copy_C_string (&len);
4153 cpu_string = input_line_pointer;
4154 c = get_symbol_end ();
4155 cpu_string = xstrdup (cpu_string);
4156 *input_line_pointer = c;
4159 if (cpu_string != NULL)
4161 ppc_cpu_t old_cpu = ppc_cpu;
4164 for (p = cpu_string; *p != 0; p++)
4167 if (strcmp (cpu_string, "push") == 0)
4169 if (cpu_history == NULL)
4170 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4172 if (curr_hist >= MAX_HISTORY)
4173 as_bad (_(".machine stack overflow"));
4175 cpu_history[curr_hist++] = ppc_cpu;
4177 else if (strcmp (cpu_string, "pop") == 0)
4180 as_bad (_(".machine stack underflow"));
4182 ppc_cpu = cpu_history[--curr_hist];
4184 else if (parse_cpu (cpu_string))
4187 as_bad (_("invalid machine `%s'"), cpu_string);
4189 if (ppc_cpu != old_cpu)
4190 ppc_setup_opcodes ();
4193 demand_empty_rest_of_line ();
4196 /* See whether a symbol is in the TOC section. */
4199 ppc_is_toc_sym (symbolS *sym)
4202 return symbol_get_tc (sym)->class == XMC_TC;
4205 const char *sname = segment_name (S_GET_SEGMENT (sym));
4207 return strcmp (sname, ".toc") == 0;
4209 return strcmp (sname, ".got") == 0;
4212 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4216 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4218 /* Set the current section. */
4220 ppc_set_current_section (segT new)
4222 ppc_previous_section = ppc_current_section;
4223 ppc_current_section = new;
4226 /* pseudo-op: .previous
4227 behaviour: toggles the current section with the previous section.
4229 warnings: "No previous section" */
4232 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4236 if (ppc_previous_section == NULL)
4238 as_warn (_("No previous section to return to. Directive ignored."));
4242 subseg_set (ppc_previous_section, 0);
4244 ppc_set_current_section (ppc_previous_section);
4247 /* pseudo-op: .pdata
4248 behaviour: predefined read only data section
4252 initial: .section .pdata "adr3"
4253 a - don't know -- maybe a misprint
4254 d - initialized data
4256 3 - double word aligned (that would be 4 byte boundary)
4259 Tag index tables (also known as the function table) for exception
4260 handling, debugging, etc. */
4263 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4265 if (pdata_section == 0)
4267 pdata_section = subseg_new (".pdata", 0);
4269 bfd_set_section_flags (stdoutput, pdata_section,
4270 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4271 | SEC_READONLY | SEC_DATA ));
4273 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4277 pdata_section = subseg_new (".pdata", 0);
4279 ppc_set_current_section (pdata_section);
4282 /* pseudo-op: .ydata
4283 behaviour: predefined read only data section
4287 initial: .section .ydata "drw3"
4288 a - don't know -- maybe a misprint
4289 d - initialized data
4291 3 - double word aligned (that would be 4 byte boundary)
4293 Tag tables (also known as the scope table) for exception handling,
4297 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4299 if (ydata_section == 0)
4301 ydata_section = subseg_new (".ydata", 0);
4302 bfd_set_section_flags (stdoutput, ydata_section,
4303 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4304 | SEC_READONLY | SEC_DATA ));
4306 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4310 ydata_section = subseg_new (".ydata", 0);
4312 ppc_set_current_section (ydata_section);
4315 /* pseudo-op: .reldata
4316 behaviour: predefined read write data section
4317 double word aligned (4-byte)
4318 FIXME: relocation is applied to it
4319 FIXME: what's the difference between this and .data?
4322 initial: .section .reldata "drw3"
4323 d - initialized data
4326 3 - double word aligned (that would be 8 byte boundary)
4329 Like .data, but intended to hold data subject to relocation, such as
4330 function descriptors, etc. */
4333 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4335 if (reldata_section == 0)
4337 reldata_section = subseg_new (".reldata", 0);
4339 bfd_set_section_flags (stdoutput, reldata_section,
4340 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4343 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4347 reldata_section = subseg_new (".reldata", 0);
4349 ppc_set_current_section (reldata_section);
4352 /* pseudo-op: .rdata
4353 behaviour: predefined read only data section
4357 initial: .section .rdata "dr3"
4358 d - initialized data
4360 3 - double word aligned (that would be 4 byte boundary) */
4363 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4365 if (rdata_section == 0)
4367 rdata_section = subseg_new (".rdata", 0);
4368 bfd_set_section_flags (stdoutput, rdata_section,
4369 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4370 | SEC_READONLY | SEC_DATA ));
4372 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4376 rdata_section = subseg_new (".rdata", 0);
4378 ppc_set_current_section (rdata_section);
4381 /* pseudo-op: .ualong
4382 behaviour: much like .int, with the exception that no alignment is
4384 FIXME: test the alignment statement
4389 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4395 /* pseudo-op: .znop <symbol name>
4396 behaviour: Issue a nop instruction
4397 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4398 the supplied symbol name.
4400 warnings: Missing symbol name */
4403 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4406 const struct powerpc_opcode *opcode;
4417 /* Strip out the symbol name. */
4418 symbol_name = input_line_pointer;
4419 c = get_symbol_end ();
4421 name = xmalloc (input_line_pointer - symbol_name + 1);
4422 strcpy (name, symbol_name);
4424 sym = symbol_find_or_make (name);
4426 *input_line_pointer = c;
4430 /* Look up the opcode in the hash table. */
4431 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4433 /* Stick in the nop. */
4434 insn = opcode->opcode;
4436 /* Write out the instruction. */
4438 md_number_to_chars (f, insn, 4);
4440 f - frag_now->fr_literal,
4445 BFD_RELOC_16_GOT_PCREL);
4455 ppc_pe_comm (int lcomm)
4464 name = input_line_pointer;
4465 c = get_symbol_end ();
4467 /* just after name is now '\0'. */
4468 p = input_line_pointer;
4471 if (*input_line_pointer != ',')
4473 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4474 ignore_rest_of_line ();
4478 input_line_pointer++; /* skip ',' */
4479 if ((temp = get_absolute_expression ()) < 0)
4481 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4482 ignore_rest_of_line ();
4488 /* The third argument to .comm is the alignment. */
4489 if (*input_line_pointer != ',')
4493 ++input_line_pointer;
4494 align = get_absolute_expression ();
4497 as_warn (_("ignoring bad alignment"));
4504 symbolP = symbol_find_or_make (name);
4507 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4509 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4510 S_GET_NAME (symbolP));
4511 ignore_rest_of_line ();
4515 if (S_GET_VALUE (symbolP))
4517 if (S_GET_VALUE (symbolP) != (valueT) temp)
4518 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4519 S_GET_NAME (symbolP),
4520 (long) S_GET_VALUE (symbolP),
4525 S_SET_VALUE (symbolP, (valueT) temp);
4526 S_SET_EXTERNAL (symbolP);
4527 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4530 demand_empty_rest_of_line ();
4534 * implement the .section pseudo op:
4535 * .section name {, "flags"}
4537 * | +--- optional flags: 'b' for bss
4539 * +-- section name 'l' for lib
4543 * 'd' (apparently m88k for data)
4545 * But if the argument is not a quoted string, treat it as a
4546 * subsegment number.
4548 * FIXME: this is a copy of the section processing from obj-coff.c, with
4549 * additions/changes for the moto-pas assembler support. There are three
4552 * FIXME: I just noticed this. This doesn't work at all really. It it
4553 * setting bits that bfd probably neither understands or uses. The
4554 * correct approach (?) will have to incorporate extra fields attached
4555 * to the section to hold the system specific stuff. (krk)
4558 * 'a' - unknown - referred to in documentation, but no definition supplied
4559 * 'c' - section has code
4560 * 'd' - section has initialized data
4561 * 'u' - section has uninitialized data
4562 * 'i' - section contains directives (info)
4563 * 'n' - section can be discarded
4564 * 'R' - remove section at link time
4566 * Section Protection:
4567 * 'r' - section is readable
4568 * 'w' - section is writeable
4569 * 'x' - section is executable
4570 * 's' - section is sharable
4572 * Section Alignment:
4573 * '0' - align to byte boundary
4574 * '1' - align to halfword undary
4575 * '2' - align to word boundary
4576 * '3' - align to doubleword boundary
4577 * '4' - align to quadword boundary
4578 * '5' - align to 32 byte boundary
4579 * '6' - align to 64 byte boundary
4584 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4586 /* Strip out the section name. */
4595 section_name = input_line_pointer;
4596 c = get_symbol_end ();
4598 name = xmalloc (input_line_pointer - section_name + 1);
4599 strcpy (name, section_name);
4601 *input_line_pointer = c;
4606 flags = SEC_NO_FLAGS;
4608 if (strcmp (name, ".idata$2") == 0)
4612 else if (strcmp (name, ".idata$3") == 0)
4616 else if (strcmp (name, ".idata$4") == 0)
4620 else if (strcmp (name, ".idata$5") == 0)
4624 else if (strcmp (name, ".idata$6") == 0)
4629 /* Default alignment to 16 byte boundary. */
4632 if (*input_line_pointer == ',')
4634 ++input_line_pointer;
4636 if (*input_line_pointer != '"')
4637 exp = get_absolute_expression ();
4640 ++input_line_pointer;
4641 while (*input_line_pointer != '"'
4642 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4644 switch (*input_line_pointer)
4646 /* Section Contents */
4647 case 'a': /* unknown */
4648 as_bad (_("Unsupported section attribute -- 'a'"));
4650 case 'c': /* code section */
4653 case 'd': /* section has initialized data */
4656 case 'u': /* section has uninitialized data */
4657 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4661 case 'i': /* section contains directives (info) */
4662 /* FIXME: This is IMAGE_SCN_LNK_INFO
4664 flags |= SEC_HAS_CONTENTS;
4666 case 'n': /* section can be discarded */
4669 case 'R': /* Remove section at link time */
4670 flags |= SEC_NEVER_LOAD;
4672 #if IFLICT_BRAIN_DAMAGE
4673 /* Section Protection */
4674 case 'r': /* section is readable */
4675 flags |= IMAGE_SCN_MEM_READ;
4677 case 'w': /* section is writeable */
4678 flags |= IMAGE_SCN_MEM_WRITE;
4680 case 'x': /* section is executable */
4681 flags |= IMAGE_SCN_MEM_EXECUTE;
4683 case 's': /* section is sharable */
4684 flags |= IMAGE_SCN_MEM_SHARED;
4687 /* Section Alignment */
4688 case '0': /* align to byte boundary */
4689 flags |= IMAGE_SCN_ALIGN_1BYTES;
4692 case '1': /* align to halfword boundary */
4693 flags |= IMAGE_SCN_ALIGN_2BYTES;
4696 case '2': /* align to word boundary */
4697 flags |= IMAGE_SCN_ALIGN_4BYTES;
4700 case '3': /* align to doubleword boundary */
4701 flags |= IMAGE_SCN_ALIGN_8BYTES;
4704 case '4': /* align to quadword boundary */
4705 flags |= IMAGE_SCN_ALIGN_16BYTES;
4708 case '5': /* align to 32 byte boundary */
4709 flags |= IMAGE_SCN_ALIGN_32BYTES;
4712 case '6': /* align to 64 byte boundary */
4713 flags |= IMAGE_SCN_ALIGN_64BYTES;
4718 as_bad (_("unknown section attribute '%c'"),
4719 *input_line_pointer);
4722 ++input_line_pointer;
4724 if (*input_line_pointer == '"')
4725 ++input_line_pointer;
4729 sec = subseg_new (name, (subsegT) exp);
4731 ppc_set_current_section (sec);
4733 if (flags != SEC_NO_FLAGS)
4735 if (! bfd_set_section_flags (stdoutput, sec, flags))
4736 as_bad (_("error setting flags for \"%s\": %s"),
4737 bfd_section_name (stdoutput, sec),
4738 bfd_errmsg (bfd_get_error ()));
4741 bfd_set_section_alignment (stdoutput, sec, align);
4745 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4751 name = input_line_pointer;
4752 endc = get_symbol_end ();
4754 ext_sym = symbol_find_or_make (name);
4756 *input_line_pointer = endc;
4758 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4759 SF_SET_FUNCTION (ext_sym);
4760 SF_SET_PROCESS (ext_sym);
4761 coff_add_linesym (ext_sym);
4763 demand_empty_rest_of_line ();
4767 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4769 if (tocdata_section == 0)
4771 tocdata_section = subseg_new (".tocd", 0);
4772 /* FIXME: section flags won't work. */
4773 bfd_set_section_flags (stdoutput, tocdata_section,
4774 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4775 | SEC_READONLY | SEC_DATA));
4777 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4781 rdata_section = subseg_new (".tocd", 0);
4784 ppc_set_current_section (tocdata_section);
4786 demand_empty_rest_of_line ();
4789 /* Don't adjust TOC relocs to use the section symbol. */
4792 ppc_pe_fix_adjustable (fixS *fix)
4794 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4801 /* XCOFF specific symbol and file handling. */
4803 /* Canonicalize the symbol name. We use the to force the suffix, if
4804 any, to use square brackets, and to be in upper case. */
4807 ppc_canonicalize_symbol_name (char *name)
4811 if (ppc_stab_symbol)
4814 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4828 for (s++; *s != '\0' && *s != brac; s++)
4831 if (*s == '\0' || s[1] != '\0')
4832 as_bad (_("bad symbol suffix"));
4840 /* Set the class of a symbol based on the suffix, if any. This is
4841 called whenever a new symbol is created. */
4844 ppc_symbol_new_hook (symbolS *sym)
4846 struct ppc_tc_sy *tc;
4849 tc = symbol_get_tc (sym);
4853 tc->real_name = NULL;
4859 if (ppc_stab_symbol)
4862 s = strchr (S_GET_NAME (sym), '[');
4863 if (s == (const char *) NULL)
4865 /* There is no suffix. */
4874 if (strcmp (s, "BS]") == 0)
4878 if (strcmp (s, "DB]") == 0)
4880 else if (strcmp (s, "DS]") == 0)
4884 if (strcmp (s, "GL]") == 0)
4888 if (strcmp (s, "PR]") == 0)
4892 if (strcmp (s, "RO]") == 0)
4894 else if (strcmp (s, "RW]") == 0)
4898 if (strcmp (s, "SV]") == 0)
4902 if (strcmp (s, "TC]") == 0)
4904 else if (strcmp (s, "TI]") == 0)
4906 else if (strcmp (s, "TB]") == 0)
4908 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4909 tc->class = XMC_TC0;
4912 if (strcmp (s, "UA]") == 0)
4914 else if (strcmp (s, "UC]") == 0)
4918 if (strcmp (s, "XO]") == 0)
4923 if (tc->class == -1)
4924 as_bad (_("Unrecognized symbol suffix"));
4927 /* Set the class of a label based on where it is defined. This
4928 handles symbols without suffixes. Also, move the symbol so that it
4929 follows the csect symbol. */
4932 ppc_frob_label (symbolS *sym)
4934 if (ppc_current_csect != (symbolS *) NULL)
4936 if (symbol_get_tc (sym)->class == -1)
4937 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4939 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4940 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4941 &symbol_rootP, &symbol_lastP);
4942 symbol_get_tc (ppc_current_csect)->within = sym;
4946 dwarf2_emit_label (sym);
4950 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4951 seen. It tells ppc_adjust_symtab whether it needs to look through
4954 static bfd_boolean ppc_saw_abs;
4956 /* Change the name of a symbol just before writing it out. Set the
4957 real name if the .rename pseudo-op was used. Otherwise, remove any
4958 class suffix. Return 1 if the symbol should not be included in the
4962 ppc_frob_symbol (symbolS *sym)
4964 static symbolS *ppc_last_function;
4965 static symbolS *set_end;
4967 /* Discard symbols that should not be included in the output symbol
4969 if (! symbol_used_in_reloc_p (sym)
4970 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4971 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4972 && ! symbol_get_tc (sym)->output
4973 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4976 /* This one will disappear anyway. Don't make a csect sym for it. */
4977 if (sym == abs_section_sym)
4980 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4981 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4987 name = S_GET_NAME (sym);
4988 s = strchr (name, '[');
4989 if (s != (char *) NULL)
4995 snew = xmalloc (len + 1);
4996 memcpy (snew, name, len);
4999 S_SET_NAME (sym, snew);
5003 if (set_end != (symbolS *) NULL)
5005 SA_SET_SYM_ENDNDX (set_end, sym);
5009 if (SF_GET_FUNCTION (sym))
5011 if (ppc_last_function != (symbolS *) NULL)
5012 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5013 ppc_last_function = sym;
5014 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5016 resolve_symbol_value (symbol_get_tc (sym)->size);
5017 SA_SET_SYM_FSIZE (sym,
5018 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5021 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5022 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5024 if (ppc_last_function == (symbolS *) NULL)
5025 as_bad (_(".ef with no preceding .function"));
5028 set_end = ppc_last_function;
5029 ppc_last_function = NULL;
5031 /* We don't have a C_EFCN symbol, but we need to force the
5032 COFF backend to believe that it has seen one. */
5033 coff_last_function = NULL;
5037 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5038 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5039 && S_GET_STORAGE_CLASS (sym) != C_FILE
5040 && S_GET_STORAGE_CLASS (sym) != C_FCN
5041 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5042 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5043 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5044 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5045 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5046 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5047 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5049 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5050 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5053 union internal_auxent *a;
5055 /* Create a csect aux. */
5056 i = S_GET_NUMBER_AUXILIARY (sym);
5057 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5058 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5059 if (symbol_get_tc (sym)->class == XMC_TC0)
5061 /* This is the TOC table. */
5062 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5063 a->x_csect.x_scnlen.l = 0;
5064 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5066 else if (symbol_get_tc (sym)->subseg != 0)
5068 /* This is a csect symbol. x_scnlen is the size of the
5070 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5071 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5072 S_GET_SEGMENT (sym))
5073 - S_GET_VALUE (sym));
5076 resolve_symbol_value (symbol_get_tc (sym)->next);
5077 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5078 - S_GET_VALUE (sym));
5080 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5082 else if (S_GET_SEGMENT (sym) == bss_section)
5084 /* This is a common symbol. */
5085 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5086 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5087 if (S_IS_EXTERNAL (sym))
5088 symbol_get_tc (sym)->class = XMC_RW;
5090 symbol_get_tc (sym)->class = XMC_BS;
5092 else if (S_GET_SEGMENT (sym) == absolute_section)
5094 /* This is an absolute symbol. The csect will be created by
5095 ppc_adjust_symtab. */
5097 a->x_csect.x_smtyp = XTY_LD;
5098 if (symbol_get_tc (sym)->class == -1)
5099 symbol_get_tc (sym)->class = XMC_XO;
5101 else if (! S_IS_DEFINED (sym))
5103 /* This is an external symbol. */
5104 a->x_csect.x_scnlen.l = 0;
5105 a->x_csect.x_smtyp = XTY_ER;
5107 else if (symbol_get_tc (sym)->class == XMC_TC)
5111 /* This is a TOC definition. x_scnlen is the size of the
5113 next = symbol_next (sym);
5114 while (symbol_get_tc (next)->class == XMC_TC0)
5115 next = symbol_next (next);
5116 if (next == (symbolS *) NULL
5117 || symbol_get_tc (next)->class != XMC_TC)
5119 if (ppc_after_toc_frag == (fragS *) NULL)
5120 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5122 - S_GET_VALUE (sym));
5124 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5125 - S_GET_VALUE (sym));
5129 resolve_symbol_value (next);
5130 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5131 - S_GET_VALUE (sym));
5133 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5139 /* This is a normal symbol definition. x_scnlen is the
5140 symbol index of the containing csect. */
5141 if (S_GET_SEGMENT (sym) == text_section)
5142 csect = ppc_text_csects;
5143 else if (S_GET_SEGMENT (sym) == data_section)
5144 csect = ppc_data_csects;
5148 /* Skip the initial dummy symbol. */
5149 csect = symbol_get_tc (csect)->next;
5151 if (csect == (symbolS *) NULL)
5153 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5154 a->x_csect.x_scnlen.l = 0;
5158 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5160 resolve_symbol_value (symbol_get_tc (csect)->next);
5161 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5162 > S_GET_VALUE (sym))
5164 csect = symbol_get_tc (csect)->next;
5167 a->x_csect.x_scnlen.p =
5168 coffsymbol (symbol_get_bfdsym (csect))->native;
5169 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5172 a->x_csect.x_smtyp = XTY_LD;
5175 a->x_csect.x_parmhash = 0;
5176 a->x_csect.x_snhash = 0;
5177 if (symbol_get_tc (sym)->class == -1)
5178 a->x_csect.x_smclas = XMC_PR;
5180 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5181 a->x_csect.x_stab = 0;
5182 a->x_csect.x_snstab = 0;
5184 /* Don't let the COFF backend resort these symbols. */
5185 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5187 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5189 /* We want the value to be the symbol index of the referenced
5190 csect symbol. BFD will do that for us if we set the right
5192 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5193 combined_entry_type *c = coffsymbol (bsym)->native;
5195 S_SET_VALUE (sym, (valueT) (size_t) c);
5196 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5198 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5203 /* The value is the offset from the enclosing csect. */
5204 block = symbol_get_tc (sym)->within;
5205 csect = symbol_get_tc (block)->within;
5206 resolve_symbol_value (csect);
5207 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5209 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5210 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5212 /* We want the value to be a file offset into the line numbers.
5213 BFD will do that for us if we set the right flags. We have
5214 already set the value correctly. */
5215 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5221 /* Adjust the symbol table. This creates csect symbols for all
5222 absolute symbols. */
5225 ppc_adjust_symtab (void)
5232 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5236 union internal_auxent *a;
5238 if (S_GET_SEGMENT (sym) != absolute_section)
5241 csect = symbol_create (".abs[XO]", absolute_section,
5242 S_GET_VALUE (sym), &zero_address_frag);
5243 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5244 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5245 i = S_GET_NUMBER_AUXILIARY (csect);
5246 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5247 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5248 a->x_csect.x_scnlen.l = 0;
5249 a->x_csect.x_smtyp = XTY_SD;
5250 a->x_csect.x_parmhash = 0;
5251 a->x_csect.x_snhash = 0;
5252 a->x_csect.x_smclas = XMC_XO;
5253 a->x_csect.x_stab = 0;
5254 a->x_csect.x_snstab = 0;
5256 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5258 i = S_GET_NUMBER_AUXILIARY (sym);
5259 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5260 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5261 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5264 ppc_saw_abs = FALSE;
5267 /* Set the VMA for a section. This is called on all the sections in
5271 ppc_frob_section (asection *sec)
5273 static bfd_vma vma = 0;
5275 vma = md_section_align (sec, vma);
5276 bfd_set_section_vma (stdoutput, sec, vma);
5277 vma += bfd_section_size (stdoutput, sec);
5280 #endif /* OBJ_XCOFF */
5283 md_atof (int type, char *litp, int *sizep)
5285 return ieee_md_atof (type, litp, sizep, target_big_endian);
5288 /* Write a value out to the object file, using the appropriate
5292 md_number_to_chars (char *buf, valueT val, int n)
5294 if (target_big_endian)
5295 number_to_chars_bigendian (buf, val, n);
5297 number_to_chars_littleendian (buf, val, n);
5300 /* Align a section (I don't know why this is machine dependent). */
5303 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5308 int align = bfd_get_section_alignment (stdoutput, seg);
5310 return ((addr + (1 << align) - 1) & (-1 << align));
5314 /* We don't have any form of relaxing. */
5317 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5318 asection *seg ATTRIBUTE_UNUSED)
5324 /* Convert a machine dependent frag. We never generate these. */
5327 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5328 asection *sec ATTRIBUTE_UNUSED,
5329 fragS *fragp ATTRIBUTE_UNUSED)
5334 /* We have no need to default values of symbols. */
5337 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5342 /* Functions concerning relocs. */
5344 /* The location from which a PC relative jump should be calculated,
5345 given a PC relative reloc. */
5348 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5350 return fixp->fx_frag->fr_address + fixp->fx_where;
5355 /* This is called to see whether a fixup should be adjusted to use a
5356 section symbol. We take the opportunity to change a fixup against
5357 a symbol in the TOC subsegment into a reloc against the
5358 corresponding .tc symbol. */
5361 ppc_fix_adjustable (fixS *fix)
5363 valueT val = resolve_symbol_value (fix->fx_addsy);
5364 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5365 TC_SYMFIELD_TYPE *tc;
5367 if (symseg == absolute_section)
5370 if (ppc_toc_csect != (symbolS *) NULL
5371 && fix->fx_addsy != ppc_toc_csect
5372 && symseg == data_section
5373 && val >= ppc_toc_frag->fr_address
5374 && (ppc_after_toc_frag == (fragS *) NULL
5375 || val < ppc_after_toc_frag->fr_address))
5379 for (sy = symbol_next (ppc_toc_csect);
5380 sy != (symbolS *) NULL;
5381 sy = symbol_next (sy))
5383 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5385 if (sy_tc->class == XMC_TC0)
5387 if (sy_tc->class != XMC_TC)
5389 if (val == resolve_symbol_value (sy))
5392 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5397 as_bad_where (fix->fx_file, fix->fx_line,
5398 _("symbol in .toc does not match any .tc"));
5401 /* Possibly adjust the reloc to be against the csect. */
5402 tc = symbol_get_tc (fix->fx_addsy);
5404 && tc->class != XMC_TC0
5405 && tc->class != XMC_TC
5406 && symseg != bss_section
5407 /* Don't adjust if this is a reloc in the toc section. */
5408 && (symseg != data_section
5409 || ppc_toc_csect == NULL
5410 || val < ppc_toc_frag->fr_address
5411 || (ppc_after_toc_frag != NULL
5412 && val >= ppc_after_toc_frag->fr_address)))
5415 symbolS *next_csect;
5417 if (symseg == text_section)
5418 csect = ppc_text_csects;
5419 else if (symseg == data_section)
5420 csect = ppc_data_csects;
5424 /* Skip the initial dummy symbol. */
5425 csect = symbol_get_tc (csect)->next;
5427 if (csect != (symbolS *) NULL)
5429 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5430 && (symbol_get_frag (next_csect)->fr_address <= val))
5432 /* If the csect address equals the symbol value, then we
5433 have to look through the full symbol table to see
5434 whether this is the csect we want. Note that we will
5435 only get here if the csect has zero length. */
5436 if (symbol_get_frag (csect)->fr_address == val
5437 && S_GET_VALUE (csect) == val)
5441 for (scan = symbol_next (csect);
5443 scan = symbol_next (scan))
5445 if (symbol_get_tc (scan)->subseg != 0)
5447 if (scan == fix->fx_addsy)
5451 /* If we found the symbol before the next csect
5452 symbol, then this is the csect we want. */
5453 if (scan == fix->fx_addsy)
5460 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5461 fix->fx_addsy = csect;
5466 /* Adjust a reloc against a .lcomm symbol to be against the base
5468 if (symseg == bss_section
5469 && ! S_IS_EXTERNAL (fix->fx_addsy))
5471 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5473 fix->fx_offset += val - resolve_symbol_value (sy);
5480 /* A reloc from one csect to another must be kept. The assembler
5481 will, of course, keep relocs between sections, and it will keep
5482 absolute relocs, but we need to force it to keep PC relative relocs
5483 between two csects in the same section. */
5486 ppc_force_relocation (fixS *fix)
5488 /* At this point fix->fx_addsy should already have been converted to
5489 a csect symbol. If the csect does not include the fragment, then
5490 we need to force the relocation. */
5492 && fix->fx_addsy != NULL
5493 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5494 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5495 > fix->fx_frag->fr_address)
5496 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5497 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5498 <= fix->fx_frag->fr_address))))
5501 return generic_force_reloc (fix);
5504 #endif /* OBJ_XCOFF */
5507 /* If this function returns non-zero, it guarantees that a relocation
5508 will be emitted for a fixup. */
5511 ppc_force_relocation (fixS *fix)
5513 /* Branch prediction relocations must force a relocation, as must
5514 the vtable description relocs. */
5515 switch (fix->fx_r_type)
5517 case BFD_RELOC_PPC_B16_BRTAKEN:
5518 case BFD_RELOC_PPC_B16_BRNTAKEN:
5519 case BFD_RELOC_PPC_BA16_BRTAKEN:
5520 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5521 case BFD_RELOC_24_PLT_PCREL:
5522 case BFD_RELOC_PPC64_TOC:
5528 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5529 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5532 return generic_force_reloc (fix);
5536 ppc_fix_adjustable (fixS *fix)
5538 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5539 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5540 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5541 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5542 && fix->fx_r_type != BFD_RELOC_GPREL16
5543 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5544 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5545 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5546 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5550 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5551 rs_align_code frag. */
5554 ppc_handle_align (struct frag *fragP)
5556 valueT count = (fragP->fr_next->fr_address
5557 - (fragP->fr_address + fragP->fr_fix));
5559 if (count != 0 && (count & 3) == 0)
5561 char *dest = fragP->fr_literal + fragP->fr_fix;
5564 md_number_to_chars (dest, 0x60000000, 4);
5566 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5568 /* For power6, we want the last nop to be a group terminating
5569 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5570 immediately after this one, with its address set to the last
5571 nop location. This will automatically reduce the number of
5572 nops in the current frag by one. */
5575 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5577 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5578 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5579 group_nop->fr_fix = 0;
5580 group_nop->fr_offset = 1;
5581 group_nop->fr_type = rs_fill;
5582 fragP->fr_next = group_nop;
5583 dest = group_nop->fr_literal;
5586 md_number_to_chars (dest, 0x60210000, 4);
5591 /* Apply a fixup to the object code. This is called for all the
5592 fixups we generated by the call to fix_new_exp, above. In the call
5593 above we used a reloc code which was the largest legal reloc code
5594 plus the operand index. Here we undo that to recover the operand
5595 index. At this point all symbol values should be fully resolved,
5596 and we attempt to completely resolve the reloc. If we can not do
5597 that, we determine the correct reloc code and put it back in the
5601 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5603 valueT value = * valP;
5606 if (fixP->fx_addsy != NULL)
5608 /* Hack around bfd_install_relocation brain damage. */
5610 value += fixP->fx_frag->fr_address + fixP->fx_where;
5615 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5616 the symbol values. If we are doing this relocation the code in
5617 write.c is going to call bfd_install_relocation, which is also
5618 going to use the symbol value. That means that if the reloc is
5619 fully resolved we want to use *valP since bfd_install_relocation is
5621 However, if the reloc is not fully resolved we do not want to use
5622 *valP, and must use fx_offset instead. However, if the reloc
5623 is PC relative, we do want to use *valP since it includes the
5624 result of md_pcrel_from. This is confusing. */
5625 if (fixP->fx_addsy == (symbolS *) NULL)
5628 else if (fixP->fx_pcrel)
5632 value = fixP->fx_offset;
5635 if (fixP->fx_subsy != (symbolS *) NULL)
5637 /* We can't actually support subtracting a symbol. */
5638 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5641 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5644 const struct powerpc_operand *operand;
5648 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5650 operand = &powerpc_operands[opindex];
5653 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5654 does not generate a reloc. It uses the offset of `sym' within its
5655 csect. Other usages, such as `.long sym', generate relocs. This
5656 is the documented behaviour of non-TOC symbols. */
5657 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5658 && (operand->bitm & 0xfff0) == 0xfff0
5659 && operand->shift == 0
5660 && (operand->insert == NULL || ppc_obj64)
5661 && fixP->fx_addsy != NULL
5662 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5663 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5664 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5665 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5667 value = fixP->fx_offset;
5672 /* Fetch the instruction, insert the fully resolved operand
5673 value, and stuff the instruction back again. */
5674 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5675 if (target_big_endian)
5676 insn = bfd_getb32 ((unsigned char *) where);
5678 insn = bfd_getl32 ((unsigned char *) where);
5679 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5680 fixP->tc_fix_data.ppc_cpu,
5681 fixP->fx_file, fixP->fx_line);
5682 if (target_big_endian)
5683 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5685 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5688 /* Nothing else to do here. */
5691 assert (fixP->fx_addsy != NULL);
5693 /* Determine a BFD reloc value based on the operand information.
5694 We are only prepared to turn a few of the operands into
5696 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5697 && operand->bitm == 0x3fffffc
5698 && operand->shift == 0)
5699 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5700 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5701 && operand->bitm == 0xfffc
5702 && operand->shift == 0)
5704 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5707 if (target_big_endian)
5708 fixP->fx_where += 2;
5711 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5712 && operand->bitm == 0x3fffffc
5713 && operand->shift == 0)
5714 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5715 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5716 && operand->bitm == 0xfffc
5717 && operand->shift == 0)
5719 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5722 if (target_big_endian)
5723 fixP->fx_where += 2;
5726 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5727 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5728 && (operand->bitm & 0xfff0) == 0xfff0
5729 && operand->shift == 0)
5731 if (ppc_is_toc_sym (fixP->fx_addsy))
5733 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5736 && (operand->flags & PPC_OPERAND_DS) != 0)
5737 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5742 fixP->fx_r_type = BFD_RELOC_16;
5745 && (operand->flags & PPC_OPERAND_DS) != 0)
5746 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5750 if (target_big_endian)
5751 fixP->fx_where += 2;
5753 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5759 /* Use expr_symbol_where to see if this is an expression
5761 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5762 as_bad_where (fixP->fx_file, fixP->fx_line,
5763 _("unresolved expression that must be resolved"));
5765 as_bad_where (fixP->fx_file, fixP->fx_line,
5766 _("unsupported relocation against %s"),
5767 S_GET_NAME (fixP->fx_addsy));
5775 ppc_elf_validate_fix (fixP, seg);
5777 switch (fixP->fx_r_type)
5779 case BFD_RELOC_CTOR:
5786 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5790 case BFD_RELOC_32_PCREL:
5791 case BFD_RELOC_PPC_EMB_NADDR32:
5792 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5799 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5802 case BFD_RELOC_64_PCREL:
5803 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5807 case BFD_RELOC_GPREL16:
5808 case BFD_RELOC_16_GOT_PCREL:
5809 case BFD_RELOC_16_GOTOFF:
5810 case BFD_RELOC_LO16_GOTOFF:
5811 case BFD_RELOC_HI16_GOTOFF:
5812 case BFD_RELOC_HI16_S_GOTOFF:
5813 case BFD_RELOC_16_BASEREL:
5814 case BFD_RELOC_LO16_BASEREL:
5815 case BFD_RELOC_HI16_BASEREL:
5816 case BFD_RELOC_HI16_S_BASEREL:
5817 case BFD_RELOC_PPC_EMB_NADDR16:
5818 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5819 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5820 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5821 case BFD_RELOC_PPC_EMB_SDAI16:
5822 case BFD_RELOC_PPC_EMB_SDA2REL:
5823 case BFD_RELOC_PPC_EMB_SDA2I16:
5824 case BFD_RELOC_PPC_EMB_RELSEC16:
5825 case BFD_RELOC_PPC_EMB_RELST_LO:
5826 case BFD_RELOC_PPC_EMB_RELST_HI:
5827 case BFD_RELOC_PPC_EMB_RELST_HA:
5828 case BFD_RELOC_PPC_EMB_RELSDA:
5829 case BFD_RELOC_PPC_TOC16:
5831 case BFD_RELOC_PPC64_TOC16_LO:
5832 case BFD_RELOC_PPC64_TOC16_HI:
5833 case BFD_RELOC_PPC64_TOC16_HA:
5837 if (fixP->fx_addsy != NULL)
5838 as_bad_where (fixP->fx_file, fixP->fx_line,
5839 _("cannot emit PC relative %s relocation against %s"),
5840 bfd_get_reloc_code_name (fixP->fx_r_type),
5841 S_GET_NAME (fixP->fx_addsy));
5843 as_bad_where (fixP->fx_file, fixP->fx_line,
5844 _("cannot emit PC relative %s relocation"),
5845 bfd_get_reloc_code_name (fixP->fx_r_type));
5848 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5854 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5857 case BFD_RELOC_16_PCREL:
5858 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5862 case BFD_RELOC_LO16:
5864 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5867 case BFD_RELOC_LO16_PCREL:
5868 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5872 /* This case happens when you write, for example,
5874 where L1 and L2 are defined later. */
5875 case BFD_RELOC_HI16:
5877 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5880 case BFD_RELOC_HI16_PCREL:
5881 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5885 case BFD_RELOC_HI16_S:
5887 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5890 case BFD_RELOC_HI16_S_PCREL:
5891 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5896 case BFD_RELOC_PPC64_HIGHER:
5899 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5900 PPC_HIGHER (value), 2);
5903 case BFD_RELOC_PPC64_HIGHER_S:
5906 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5907 PPC_HIGHERA (value), 2);
5910 case BFD_RELOC_PPC64_HIGHEST:
5913 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5914 PPC_HIGHEST (value), 2);
5917 case BFD_RELOC_PPC64_HIGHEST_S:
5920 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5921 PPC_HIGHESTA (value), 2);
5924 case BFD_RELOC_PPC64_ADDR16_DS:
5925 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5926 case BFD_RELOC_PPC64_GOT16_DS:
5927 case BFD_RELOC_PPC64_GOT16_LO_DS:
5928 case BFD_RELOC_PPC64_PLT16_LO_DS:
5929 case BFD_RELOC_PPC64_SECTOFF_DS:
5930 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5931 case BFD_RELOC_PPC64_TOC16_DS:
5932 case BFD_RELOC_PPC64_TOC16_LO_DS:
5933 case BFD_RELOC_PPC64_PLTGOT16_DS:
5934 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5938 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5939 unsigned long val, mask;
5941 if (target_big_endian)
5942 val = bfd_getb32 (where - 2);
5944 val = bfd_getl32 (where);
5946 /* lq insns reserve the four lsbs. */
5947 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5948 && (val & (0x3f << 26)) == (56u << 26))
5950 val |= value & mask;
5951 if (target_big_endian)
5952 bfd_putb16 ((bfd_vma) val, where);
5954 bfd_putl16 ((bfd_vma) val, where);
5958 case BFD_RELOC_PPC_B16_BRTAKEN:
5959 case BFD_RELOC_PPC_B16_BRNTAKEN:
5960 case BFD_RELOC_PPC_BA16_BRTAKEN:
5961 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5964 case BFD_RELOC_PPC_TLS:
5967 case BFD_RELOC_PPC_DTPMOD:
5968 case BFD_RELOC_PPC_TPREL16:
5969 case BFD_RELOC_PPC_TPREL16_LO:
5970 case BFD_RELOC_PPC_TPREL16_HI:
5971 case BFD_RELOC_PPC_TPREL16_HA:
5972 case BFD_RELOC_PPC_TPREL:
5973 case BFD_RELOC_PPC_DTPREL16:
5974 case BFD_RELOC_PPC_DTPREL16_LO:
5975 case BFD_RELOC_PPC_DTPREL16_HI:
5976 case BFD_RELOC_PPC_DTPREL16_HA:
5977 case BFD_RELOC_PPC_DTPREL:
5978 case BFD_RELOC_PPC_GOT_TLSGD16:
5979 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5980 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5981 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5982 case BFD_RELOC_PPC_GOT_TLSLD16:
5983 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5984 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5985 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5986 case BFD_RELOC_PPC_GOT_TPREL16:
5987 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5988 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5989 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5990 case BFD_RELOC_PPC_GOT_DTPREL16:
5991 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5992 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5993 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5994 case BFD_RELOC_PPC64_TPREL16_DS:
5995 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5996 case BFD_RELOC_PPC64_TPREL16_HIGHER:
5997 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
5998 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
5999 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6000 case BFD_RELOC_PPC64_DTPREL16_DS:
6001 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6002 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6003 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6004 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6005 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6006 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6009 /* Because SDA21 modifies the register field, the size is set to 4
6010 bytes, rather than 2, so offset it here appropriately. */
6011 case BFD_RELOC_PPC_EMB_SDA21:
6015 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6016 + ((target_big_endian) ? 2 : 0),
6023 /* This can occur if there is a bug in the input assembler, eg:
6024 ".byte <undefined_symbol> - ." */
6026 as_bad (_("Unable to handle reference to symbol %s"),
6027 S_GET_NAME (fixP->fx_addsy));
6029 as_bad (_("Unable to resolve expression"));
6033 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6037 case BFD_RELOC_24_PLT_PCREL:
6038 case BFD_RELOC_PPC_LOCAL24PC:
6039 if (!fixP->fx_pcrel && !fixP->fx_done)
6047 /* Fetch the instruction, insert the fully resolved operand
6048 value, and stuff the instruction back again. */
6049 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6050 if (target_big_endian)
6051 insn = bfd_getb32 ((unsigned char *) where);
6053 insn = bfd_getl32 ((unsigned char *) where);
6054 if ((value & 3) != 0)
6055 as_bad_where (fixP->fx_file, fixP->fx_line,
6056 _("must branch to an address a multiple of 4"));
6057 if ((offsetT) value < -0x40000000
6058 || (offsetT) value >= 0x40000000)
6059 as_bad_where (fixP->fx_file, fixP->fx_line,
6060 _("@local or @plt branch destination is too far away, %ld bytes"),
6062 insn = insn | (value & 0x03fffffc);
6063 if (target_big_endian)
6064 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6066 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6070 case BFD_RELOC_VTABLE_INHERIT:
6073 && !S_IS_DEFINED (fixP->fx_addsy)
6074 && !S_IS_WEAK (fixP->fx_addsy))
6075 S_SET_WEAK (fixP->fx_addsy);
6078 case BFD_RELOC_VTABLE_ENTRY:
6083 /* Generated by reference to `sym@tocbase'. The sym is
6084 ignored by the linker. */
6085 case BFD_RELOC_PPC64_TOC:
6091 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6098 fixP->fx_addnumber = value;
6100 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6101 from the section contents. If we are going to be emitting a reloc
6102 then the section contents are immaterial, so don't warn if they
6103 happen to overflow. Leave such warnings to ld. */
6105 fixP->fx_no_overflow = 1;
6107 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6108 fixP->fx_addnumber = 0;
6112 fixP->fx_addnumber = 0;
6114 /* We want to use the offset within the toc, not the actual VMA
6116 fixP->fx_addnumber =
6117 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6118 - S_GET_VALUE (ppc_toc_csect);
6124 /* Generate a reloc for a fixup. */
6127 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6131 reloc = (arelent *) xmalloc (sizeof (arelent));
6133 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6134 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6135 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6136 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6137 if (reloc->howto == (reloc_howto_type *) NULL)
6139 as_bad_where (fixp->fx_file, fixp->fx_line,
6140 _("reloc %d not supported by object file format"),
6141 (int) fixp->fx_r_type);
6144 reloc->addend = fixp->fx_addnumber;
6150 ppc_cfi_frame_initial_instructions (void)
6152 cfi_add_CFA_def_cfa (1, 0);
6156 tc_ppc_regname_to_dw2regnum (char *regname)
6158 unsigned int regnum = -1;
6162 static struct { char *name; int dw2regnum; } regnames[] =
6164 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6165 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6166 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6167 { "spe_acc", 111 }, { "spefscr", 112 }
6170 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6171 if (strcmp (regnames[i].name, regname) == 0)
6172 return regnames[i].dw2regnum;
6174 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6176 p = regname + 1 + (regname[1] == '.');
6177 regnum = strtoul (p, &q, 10);
6178 if (p == q || *q || regnum >= 32)
6180 if (regname[0] == 'f')
6182 else if (regname[0] == 'v')
6185 else if (regname[0] == 'c' && regname[1] == 'r')
6187 p = regname + 2 + (regname[2] == '.');
6188 if (p[0] < '0' || p[0] > '7' || p[1])
6190 regnum = p[0] - '0' + 68;