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 altivec_or_spe = ppc_cpu & (PPC_OPCODE_ALTIVEC | PPC_OPCODE_SPE);
830 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
832 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
833 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
834 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
835 else if (strcmp (arg, "pwr") == 0)
836 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
837 /* -m601 means to assemble for the PowerPC 601, which includes
838 instructions that are holdovers from the Power. */
839 else if (strcmp (arg, "601") == 0)
840 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
841 | PPC_OPCODE_601 | PPC_OPCODE_32);
842 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
844 else if (strcmp (arg, "ppc") == 0
845 || strcmp (arg, "ppc32") == 0
846 || strcmp (arg, "603") == 0
847 || strcmp (arg, "604") == 0)
848 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
849 /* Do all PPC750s have paired single ops? */
850 else if (strcmp (arg, "750cl") == 0)
851 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_PPCPS;
852 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
853 else if (strcmp (arg, "403") == 0
854 || strcmp (arg, "405") == 0)
855 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
856 | PPC_OPCODE_403 | PPC_OPCODE_32);
857 else if (strcmp (arg, "440") == 0
858 || strcmp (arg, "464") == 0)
859 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
860 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
861 else if (strcmp (arg, "7400") == 0
862 || strcmp (arg, "7410") == 0
863 || strcmp (arg, "7450") == 0
864 || strcmp (arg, "7455") == 0)
865 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
866 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
867 else if (strcmp (arg, "e300") == 0)
868 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
870 else if (strcmp (arg, "altivec") == 0)
873 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC;
875 altivec_or_spe |= PPC_OPCODE_ALTIVEC;
877 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
879 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
880 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
881 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
882 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
884 else if (strcmp (arg, "e500mc") == 0)
886 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_ISEL
887 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
888 | PPC_OPCODE_RFMCI | PPC_OPCODE_E500MC);
890 else if (strcmp (arg, "spe") == 0)
893 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_EFS;
895 altivec_or_spe |= PPC_OPCODE_SPE;
897 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
899 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
901 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
903 else if (strcmp (arg, "ppc64bridge") == 0)
905 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
906 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
908 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
909 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
911 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
913 /* -mbooke64 means enable 64-bit BookE support. */
914 else if (strcmp (arg, "booke64") == 0)
916 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
917 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
919 else if (strcmp (arg, "power4") == 0)
921 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
922 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
924 else if (strcmp (arg, "power5") == 0)
926 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
927 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
928 | PPC_OPCODE_POWER5);
930 else if (strcmp (arg, "power6") == 0)
932 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
933 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
934 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6);
936 else if (strcmp (arg, "cell") == 0)
938 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
939 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
942 /* -mcom means assemble for the common intersection between Power
943 and PowerPC. At present, we just allow the union, rather
944 than the intersection. */
945 else if (strcmp (arg, "com") == 0)
946 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
947 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
948 else if (strcmp (arg, "any") == 0)
949 ppc_cpu |= PPC_OPCODE_ANY;
953 /* Make sure the the Altivec and SPE bits are not lost. */
954 ppc_cpu |= altivec_or_spe;
959 md_parse_option (int c, char *arg)
964 /* -u means that any undefined symbols should be treated as
965 external, which is the default for gas anyhow. */
970 /* Solaris as takes -le (presumably for little endian). For completeness
971 sake, recognize -be also. */
972 if (strcmp (arg, "e") == 0)
974 target_big_endian = 0;
975 set_target_endian = 1;
983 if (strcmp (arg, "e") == 0)
985 target_big_endian = 1;
986 set_target_endian = 1;
994 /* Recognize -K PIC. */
995 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
998 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1006 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1008 if (strcmp (arg, "64") == 0)
1013 as_fatal (_("%s unsupported"), "-a64");
1016 else if (strcmp (arg, "32") == 0)
1023 if (parse_cpu (arg))
1026 else if (strcmp (arg, "regnames") == 0)
1029 else if (strcmp (arg, "no-regnames") == 0)
1030 reg_names_p = FALSE;
1033 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1034 that require relocation. */
1035 else if (strcmp (arg, "relocatable") == 0)
1037 shlib = SHLIB_MRELOCATABLE;
1038 ppc_flags |= EF_PPC_RELOCATABLE;
1041 else if (strcmp (arg, "relocatable-lib") == 0)
1043 shlib = SHLIB_MRELOCATABLE;
1044 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1047 /* -memb, set embedded bit. */
1048 else if (strcmp (arg, "emb") == 0)
1049 ppc_flags |= EF_PPC_EMB;
1051 /* -mlittle/-mbig set the endianess. */
1052 else if (strcmp (arg, "little") == 0
1053 || strcmp (arg, "little-endian") == 0)
1055 target_big_endian = 0;
1056 set_target_endian = 1;
1059 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1061 target_big_endian = 1;
1062 set_target_endian = 1;
1065 else if (strcmp (arg, "solaris") == 0)
1068 ppc_comment_chars = ppc_solaris_comment_chars;
1071 else if (strcmp (arg, "no-solaris") == 0)
1074 ppc_comment_chars = ppc_eabi_comment_chars;
1079 as_bad (_("invalid switch -m%s"), arg);
1085 /* -V: SVR4 argument to print version ID. */
1087 print_version_id ();
1090 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1091 should be emitted or not. FIXME: Not implemented. */
1095 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1096 rather than .stabs.excl, which is ignored by the linker.
1097 FIXME: Not implemented. */
1113 md_show_usage (FILE *stream)
1115 fprintf (stream, _("\
1117 -a32 generate ELF32/XCOFF32\n\
1118 -a64 generate ELF64/XCOFF64\n\
1120 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1121 -mpwr generate code for POWER (RIOS1)\n\
1122 -m601 generate code for PowerPC 601\n\
1123 -mppc, -mppc32, -m603, -m604\n\
1124 generate code for PowerPC 603/604\n\
1125 -m403, -m405 generate code for PowerPC 403/405\n\
1126 -m440 generate code for PowerPC 440\n\
1127 -m464 generate code for PowerPC 464\n\
1128 -m7400, -m7410, -m7450, -m7455\n\
1129 generate code for PowerPC 7400/7410/7450/7455\n\
1130 -m750cl generate code for PowerPC 750cl\n"));
1131 fprintf (stream, _("\
1132 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1133 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1134 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1135 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1136 -mpower4 generate code for Power4 architecture\n\
1137 -mpower5 generate code for Power5 architecture\n\
1138 -mpower6 generate code for Power6 architecture\n\
1139 -mcell generate code for Cell Broadband Engine architecture\n\
1140 -mcom generate code Power/PowerPC common instructions\n\
1141 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1142 fprintf (stream, _("\
1143 -maltivec generate code for AltiVec\n\
1144 -me300 generate code for PowerPC e300 family\n\
1145 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1146 -me500mc, generate code for Freescale e500mc core complex\n\
1147 -mspe generate code for Motorola SPE instructions\n\
1148 -mregnames Allow symbolic names for registers\n\
1149 -mno-regnames Do not allow symbolic names for registers\n"));
1151 fprintf (stream, _("\
1152 -mrelocatable support for GCC's -mrelocatble option\n\
1153 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1154 -memb set PPC_EMB bit in ELF flags\n\
1155 -mlittle, -mlittle-endian, -l, -le\n\
1156 generate code for a little endian machine\n\
1157 -mbig, -mbig-endian, -b, -be\n\
1158 generate code for a big endian machine\n\
1159 -msolaris generate code for Solaris\n\
1160 -mno-solaris do not generate code for Solaris\n\
1161 -V print assembler version number\n\
1162 -Qy, -Qn ignored\n"));
1166 /* Set ppc_cpu if it is not already set. */
1171 const char *default_os = TARGET_OS;
1172 const char *default_cpu = TARGET_CPU;
1174 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1177 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1178 else if (strncmp (default_os, "aix", 3) == 0
1179 && default_os[3] >= '4' && default_os[3] <= '9')
1180 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1181 else if (strncmp (default_os, "aix3", 4) == 0)
1182 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1183 else if (strcmp (default_cpu, "rs6000") == 0)
1184 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1185 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1186 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1188 as_fatal (_("Unknown default cpu = %s, os = %s"),
1189 default_cpu, default_os);
1193 /* Figure out the BFD architecture to use. This function and ppc_mach
1194 are called well before md_begin, when the output file is opened. */
1196 enum bfd_architecture
1199 const char *default_cpu = TARGET_CPU;
1202 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1203 return bfd_arch_powerpc;
1204 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1205 return bfd_arch_rs6000;
1206 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1208 if (strcmp (default_cpu, "rs6000") == 0)
1209 return bfd_arch_rs6000;
1210 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1211 return bfd_arch_powerpc;
1214 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1215 return bfd_arch_unknown;
1222 return bfd_mach_ppc64;
1223 else if (ppc_arch () == bfd_arch_rs6000)
1224 return bfd_mach_rs6k;
1226 return bfd_mach_ppc;
1230 ppc_target_format (void)
1234 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1236 return "xcoff-powermac";
1239 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1241 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1247 return "elf32-powerpc-vxworks";
1249 return (target_big_endian
1250 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1251 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1256 /* Insert opcodes and macros into hash tables. Called at startup and
1260 ppc_setup_opcodes (void)
1262 const struct powerpc_opcode *op;
1263 const struct powerpc_opcode *op_end;
1264 const struct powerpc_macro *macro;
1265 const struct powerpc_macro *macro_end;
1266 bfd_boolean bad_insn = FALSE;
1268 if (ppc_hash != NULL)
1269 hash_die (ppc_hash);
1270 if (ppc_macro_hash != NULL)
1271 hash_die (ppc_macro_hash);
1273 /* Insert the opcodes into a hash table. */
1274 ppc_hash = hash_new ();
1276 if (ENABLE_CHECKING)
1280 /* Check operand masks. Code here and in the disassembler assumes
1281 all the 1's in the mask are contiguous. */
1282 for (i = 0; i < num_powerpc_operands; ++i)
1284 unsigned long mask = powerpc_operands[i].bitm;
1285 unsigned long right_bit;
1288 right_bit = mask & -mask;
1290 right_bit = mask & -mask;
1291 if (mask != right_bit)
1293 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1296 for (j = i + 1; j < num_powerpc_operands; ++j)
1297 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1298 sizeof (powerpc_operands[0])) == 0)
1300 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1307 op_end = powerpc_opcodes + powerpc_num_opcodes;
1308 for (op = powerpc_opcodes; op < op_end; op++)
1310 if (ENABLE_CHECKING)
1312 const unsigned char *o;
1313 unsigned long omask = op->mask;
1315 if (op != powerpc_opcodes)
1317 /* The major opcodes had better be sorted. Code in the
1318 disassembler assumes the insns are sorted according to
1320 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1322 as_bad (_("major opcode is not sorted for %s"),
1327 /* Warn if the table isn't more strictly ordered.
1328 Unfortunately it doesn't seem possible to order the
1329 table on much more than the major opcode, which makes
1330 it difficult to implement a binary search in the
1331 disassembler. The problem is that we have multiple
1332 ways to disassemble instructions, and we usually want
1333 to choose a more specific form (with more bits set in
1334 the opcode) than a more general form. eg. all of the
1335 following are equivalent:
1336 bne label # opcode = 0x40820000, mask = 0xff830003
1337 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1338 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1340 There are also cases where the table needs to be out
1341 of order to disassemble the correct instruction for
1342 processor variants. eg. "lhae" booke64 insn must be
1343 found before "ld" ppc64 insn. */
1346 unsigned long t1 = op[0].opcode;
1347 unsigned long t2 = op[-1].opcode;
1349 if (((t1 ^ t2) & 0xfc0007ff) == 0
1350 && (t1 & 0xfc0006df) == 0x7c000286)
1352 /* spr field is split. */
1353 t1 = ((t1 & ~0x1ff800)
1354 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1355 t2 = ((t2 & ~0x1ff800)
1356 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1359 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1360 op[0].name, op[0].opcode, op[0].mask,
1361 op[-1].name, op[-1].opcode, op[-1].mask);
1365 /* The mask had better not trim off opcode bits. */
1366 if ((op->opcode & omask) != op->opcode)
1368 as_bad (_("mask trims opcode bits for %s"),
1373 /* The operands must not overlap the opcode or each other. */
1374 for (o = op->operands; *o; ++o)
1375 if (*o >= num_powerpc_operands)
1377 as_bad (_("operand index error for %s"),
1383 const struct powerpc_operand *operand = &powerpc_operands[*o];
1384 if (operand->shift >= 0)
1386 unsigned long mask = operand->bitm << operand->shift;
1389 as_bad (_("operand %d overlap in %s"),
1390 (int) (o - op->operands), op->name);
1398 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1399 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1400 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1401 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1402 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1403 /* Certain instructions (eg: extsw) do not exist in the
1404 32-bit BookE instruction set, but they do exist in the
1405 64-bit BookE instruction set, and other PPC instruction
1406 sets. Check to see if the opcode has the BOOKE64 flag set.
1407 If it does make sure that the target CPU is not the BookE32. */
1408 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1409 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1410 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1411 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1412 || ((op->flags & PPC_OPCODE_POWER4)
1413 == (ppc_cpu & PPC_OPCODE_POWER4)))
1414 && ((op->flags & PPC_OPCODE_POWER5) == 0
1415 || ((op->flags & PPC_OPCODE_POWER5)
1416 == (ppc_cpu & PPC_OPCODE_POWER5)))
1417 && ((op->flags & PPC_OPCODE_POWER6) == 0
1418 || ((op->flags & PPC_OPCODE_POWER6)
1419 == (ppc_cpu & PPC_OPCODE_POWER6))))
1423 retval = hash_insert (ppc_hash, op->name, (void *) op);
1426 /* Ignore Power duplicates for -m601. */
1427 if ((ppc_cpu & PPC_OPCODE_601) != 0
1428 && (op->flags & PPC_OPCODE_POWER) != 0)
1431 as_bad (_("duplicate instruction %s"),
1438 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1439 for (op = powerpc_opcodes; op < op_end; op++)
1440 hash_insert (ppc_hash, op->name, (void *) op);
1442 /* Insert the macros into a hash table. */
1443 ppc_macro_hash = hash_new ();
1445 macro_end = powerpc_macros + powerpc_num_macros;
1446 for (macro = powerpc_macros; macro < macro_end; macro++)
1448 if ((macro->flags & ppc_cpu) != 0)
1452 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1453 if (retval != (const char *) NULL)
1455 as_bad (_("duplicate macro %s"), macro->name);
1465 /* This function is called when the assembler starts up. It is called
1466 after the options have been parsed and the output file has been
1474 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1477 /* Set the ELF flags if desired. */
1478 if (ppc_flags && !msolaris)
1479 bfd_set_private_flags (stdoutput, ppc_flags);
1482 ppc_setup_opcodes ();
1484 /* Tell the main code what the endianness is if it is not overridden
1486 if (!set_target_endian)
1488 set_target_endian = 1;
1489 target_big_endian = PPC_BIG_ENDIAN;
1493 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1495 /* Create dummy symbols to serve as initial csects. This forces the
1496 text csects to precede the data csects. These symbols will not
1498 ppc_text_csects = symbol_make ("dummy\001");
1499 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1500 ppc_data_csects = symbol_make ("dummy\001");
1501 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1506 ppc_current_section = text_section;
1507 ppc_previous_section = 0;
1516 if (ppc_apuinfo_list == NULL)
1519 /* Ok, so write the section info out. We have this layout:
1523 0 8 length of "APUinfo\0"
1524 4 (n*4) number of APU's (4 bytes each)
1527 20 APU#1 first APU's info
1528 24 APU#2 second APU's info
1533 asection *seg = now_seg;
1534 subsegT subseg = now_subseg;
1535 asection *apuinfo_secp = (asection *) NULL;
1538 /* Create the .PPC.EMB.apuinfo section. */
1539 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1540 bfd_set_section_flags (stdoutput,
1542 SEC_HAS_CONTENTS | SEC_READONLY);
1545 md_number_to_chars (p, (valueT) 8, 4);
1548 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1551 md_number_to_chars (p, (valueT) 2, 4);
1554 strcpy (p, "APUinfo");
1556 for (i = 0; i < ppc_apuinfo_num; i++)
1559 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1562 frag_align (2, 0, 0);
1564 /* We probably can't restore the current segment, for there likely
1567 subseg_set (seg, subseg);
1572 /* Insert an operand value into an instruction. */
1574 static unsigned long
1575 ppc_insert_operand (unsigned long insn,
1576 const struct powerpc_operand *operand,
1582 long min, max, right;
1584 max = operand->bitm;
1588 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1590 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1591 max = (max >> 1) & -right;
1592 min = ~max & -right;
1595 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1598 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1607 /* Some people write constants with the sign extension done by
1608 hand but only up to 32 bits. This shouldn't really be valid,
1609 but, to permit this code to assemble on a 64-bit host, we
1610 sign extend the 32-bit value to 64 bits if so doing makes the
1613 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1614 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1615 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1616 val = val - 0x80000000 - 0x80000000;
1618 /* Similarly, people write expressions like ~(1<<15), and expect
1619 this to be OK for a 32-bit unsigned value. */
1621 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1622 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1623 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1624 val = val + 0x80000000 + 0x80000000;
1628 || (val & (right - 1)) != 0)
1629 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1632 if (operand->insert)
1637 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1638 if (errmsg != (const char *) NULL)
1639 as_bad_where (file, line, errmsg);
1642 insn |= ((long) val & operand->bitm) << operand->shift;
1649 /* Parse @got, etc. and return the desired relocation. */
1650 static bfd_reloc_code_real_type
1651 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1655 unsigned int length : 8;
1656 unsigned int valid32 : 1;
1657 unsigned int valid64 : 1;
1666 const struct map_bfd *ptr;
1668 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1669 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1670 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1672 static const struct map_bfd mapping[] = {
1673 MAP ("l", BFD_RELOC_LO16),
1674 MAP ("h", BFD_RELOC_HI16),
1675 MAP ("ha", BFD_RELOC_HI16_S),
1676 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1677 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1678 MAP ("got", BFD_RELOC_16_GOTOFF),
1679 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1680 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1681 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1682 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1683 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1684 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1685 MAP ("copy", BFD_RELOC_PPC_COPY),
1686 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1687 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1688 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1689 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1690 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1691 MAP ("tls", BFD_RELOC_PPC_TLS),
1692 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1693 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1694 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1695 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1696 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1697 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1698 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1699 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1700 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1701 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1702 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1703 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1704 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1705 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1706 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1707 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1708 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1709 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1710 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1711 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1712 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1713 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1714 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1715 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1716 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1717 MAP32 ("fixup", BFD_RELOC_CTOR),
1718 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1719 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1720 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1721 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1722 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1723 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1724 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1725 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1726 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1727 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1728 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1729 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1730 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1731 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1732 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1733 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1734 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1735 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1736 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1737 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1738 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1739 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1740 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1741 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1742 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1743 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1744 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1745 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1746 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1747 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1748 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1749 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1750 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1751 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1752 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1753 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1754 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1755 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1756 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1757 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1758 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1762 return BFD_RELOC_UNUSED;
1764 for (ch = *str, str2 = ident;
1765 (str2 < ident + sizeof (ident) - 1
1766 && (ISALNUM (ch) || ch == '@'));
1769 *str2++ = TOLOWER (ch);
1776 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1777 if (ch == ptr->string[0]
1778 && len == ptr->length
1779 && memcmp (ident, ptr->string, ptr->length) == 0
1780 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1782 int reloc = ptr->reloc;
1785 if (exp_p->X_add_number != 0
1786 && (reloc == (int) BFD_RELOC_16_GOTOFF
1787 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1788 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1789 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1790 as_warn (_("identifier+constant@got means identifier@got+constant"));
1792 /* Now check for identifier@suffix+constant. */
1793 if (*str == '-' || *str == '+')
1795 char *orig_line = input_line_pointer;
1796 expressionS new_exp;
1798 input_line_pointer = str;
1799 expression (&new_exp);
1800 if (new_exp.X_op == O_constant)
1802 exp_p->X_add_number += new_exp.X_add_number;
1803 str = input_line_pointer;
1806 if (&input_line_pointer != str_p)
1807 input_line_pointer = orig_line;
1811 if (reloc == (int) BFD_RELOC_PPC64_TOC
1812 && exp_p->X_op == O_symbol
1813 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1815 /* Change the symbol so that the dummy .TOC. symbol can be
1816 omitted from the object file. */
1817 exp_p->X_add_symbol = &abs_symbol;
1820 return (bfd_reloc_code_real_type) reloc;
1823 return BFD_RELOC_UNUSED;
1826 /* Like normal .long/.short/.word, except support @got, etc.
1827 Clobbers input_line_pointer, checks end-of-line. */
1829 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1832 bfd_reloc_code_real_type reloc;
1834 if (is_it_end_of_statement ())
1836 demand_empty_rest_of_line ();
1843 if (exp.X_op == O_symbol
1844 && *input_line_pointer == '@'
1845 && (reloc = ppc_elf_suffix (&input_line_pointer,
1846 &exp)) != BFD_RELOC_UNUSED)
1848 reloc_howto_type *reloc_howto;
1851 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1852 size = bfd_get_reloc_size (reloc_howto);
1856 as_bad (_("%s relocations do not fit in %d bytes\n"),
1857 reloc_howto->name, nbytes);
1864 p = frag_more (nbytes);
1866 if (target_big_endian)
1867 offset = nbytes - size;
1868 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1873 emit_expr (&exp, (unsigned int) nbytes);
1875 while (*input_line_pointer++ == ',');
1877 /* Put terminator back into stream. */
1878 input_line_pointer--;
1879 demand_empty_rest_of_line ();
1882 /* Solaris pseduo op to change to the .rodata section. */
1884 ppc_elf_rdata (int xxx)
1886 char *save_line = input_line_pointer;
1887 static char section[] = ".rodata\n";
1889 /* Just pretend this is .section .rodata */
1890 input_line_pointer = section;
1891 obj_elf_section (xxx);
1893 input_line_pointer = save_line;
1896 /* Pseudo op to make file scope bss items. */
1898 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1911 name = input_line_pointer;
1912 c = get_symbol_end ();
1914 /* just after name is now '\0'. */
1915 p = input_line_pointer;
1918 if (*input_line_pointer != ',')
1920 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1921 ignore_rest_of_line ();
1925 input_line_pointer++; /* skip ',' */
1926 if ((size = get_absolute_expression ()) < 0)
1928 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1929 ignore_rest_of_line ();
1933 /* The third argument to .lcomm is the alignment. */
1934 if (*input_line_pointer != ',')
1938 ++input_line_pointer;
1939 align = get_absolute_expression ();
1942 as_warn (_("ignoring bad alignment"));
1948 symbolP = symbol_find_or_make (name);
1951 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1953 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1954 S_GET_NAME (symbolP));
1955 ignore_rest_of_line ();
1959 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1961 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1962 S_GET_NAME (symbolP),
1963 (long) S_GET_VALUE (symbolP),
1966 ignore_rest_of_line ();
1972 old_subsec = now_subseg;
1975 /* Convert to a power of 2 alignment. */
1976 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1979 as_bad (_("Common alignment not a power of 2"));
1980 ignore_rest_of_line ();
1987 record_alignment (bss_section, align2);
1988 subseg_set (bss_section, 0);
1990 frag_align (align2, 0, 0);
1991 if (S_GET_SEGMENT (symbolP) == bss_section)
1992 symbol_get_frag (symbolP)->fr_symbol = 0;
1993 symbol_set_frag (symbolP, frag_now);
1994 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1997 S_SET_SIZE (symbolP, size);
1998 S_SET_SEGMENT (symbolP, bss_section);
1999 subseg_set (old_sec, old_subsec);
2000 demand_empty_rest_of_line ();
2003 /* Validate any relocations emitted for -mrelocatable, possibly adding
2004 fixups for word relocations in writable segments, so we can adjust
2007 ppc_elf_validate_fix (fixS *fixp, segT seg)
2009 if (fixp->fx_done || fixp->fx_pcrel)
2018 case SHLIB_MRELOCATABLE:
2019 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2020 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2021 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2022 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2023 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2024 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2025 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2026 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2027 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2028 && (seg->flags & SEC_LOAD) != 0
2029 && strcmp (segment_name (seg), ".got2") != 0
2030 && strcmp (segment_name (seg), ".dtors") != 0
2031 && strcmp (segment_name (seg), ".ctors") != 0
2032 && strcmp (segment_name (seg), ".fixup") != 0
2033 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2034 && strcmp (segment_name (seg), ".eh_frame") != 0
2035 && strcmp (segment_name (seg), ".ex_shared") != 0)
2037 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2038 || fixp->fx_r_type != BFD_RELOC_CTOR)
2040 as_bad_where (fixp->fx_file, fixp->fx_line,
2041 _("Relocation cannot be done when using -mrelocatable"));
2048 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2049 function descriptor sym if the corresponding code sym is used. */
2052 ppc_frob_file_before_adjust (void)
2060 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2067 name = S_GET_NAME (symp);
2071 if (! S_IS_WEAK (symp)
2072 || S_IS_DEFINED (symp))
2075 len = strlen (name) + 1;
2076 dotname = xmalloc (len + 1);
2078 memcpy (dotname + 1, name, len);
2079 dotsym = symbol_find_noref (dotname, 1);
2081 if (dotsym != NULL && (symbol_used_p (dotsym)
2082 || symbol_used_in_reloc_p (dotsym)))
2083 symbol_mark_used (symp);
2087 toc = bfd_get_section_by_name (stdoutput, ".toc");
2089 && bfd_section_size (stdoutput, toc) > 0x10000)
2090 as_warn (_("TOC section size exceeds 64k"));
2092 /* Don't emit .TOC. symbol. */
2093 symp = symbol_find (".TOC.");
2095 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2097 #endif /* OBJ_ELF */
2102 * Summary of parse_toc_entry.
2104 * in: Input_line_pointer points to the '[' in one of:
2106 * [toc] [tocv] [toc32] [toc64]
2108 * Anything else is an error of one kind or another.
2111 * return value: success or failure
2112 * toc_kind: kind of toc reference
2113 * input_line_pointer:
2114 * success: first char after the ']'
2115 * failure: unchanged
2119 * [toc] - rv == success, toc_kind = default_toc
2120 * [tocv] - rv == success, toc_kind = data_in_toc
2121 * [toc32] - rv == success, toc_kind = must_be_32
2122 * [toc64] - rv == success, toc_kind = must_be_64
2126 enum toc_size_qualifier
2128 default_toc, /* The toc cell constructed should be the system default size */
2129 data_in_toc, /* This is a direct reference to a toc cell */
2130 must_be_32, /* The toc cell constructed must be 32 bits wide */
2131 must_be_64 /* The toc cell constructed must be 64 bits wide */
2135 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2140 enum toc_size_qualifier t;
2142 /* Save the input_line_pointer. */
2143 start = input_line_pointer;
2145 /* Skip over the '[' , and whitespace. */
2146 ++input_line_pointer;
2149 /* Find the spelling of the operand. */
2150 toc_spec = input_line_pointer;
2151 c = get_symbol_end ();
2153 if (strcmp (toc_spec, "toc") == 0)
2157 else if (strcmp (toc_spec, "tocv") == 0)
2161 else if (strcmp (toc_spec, "toc32") == 0)
2165 else if (strcmp (toc_spec, "toc64") == 0)
2171 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2172 *input_line_pointer = c;
2173 input_line_pointer = start;
2177 /* Now find the ']'. */
2178 *input_line_pointer = c;
2180 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2181 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2185 as_bad (_("syntax error: expected `]', found `%c'"), c);
2186 input_line_pointer = start;
2197 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2199 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2203 /* Check we don't already exist. */
2204 for (i = 0; i < ppc_apuinfo_num; i++)
2205 if (ppc_apuinfo_list[i] == APUID (apu, version))
2208 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2210 if (ppc_apuinfo_num_alloc == 0)
2212 ppc_apuinfo_num_alloc = 4;
2213 ppc_apuinfo_list = (unsigned long *)
2214 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2218 ppc_apuinfo_num_alloc += 4;
2219 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2220 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2223 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2229 /* We need to keep a list of fixups. We can't simply generate them as
2230 we go, because that would require us to first create the frag, and
2231 that would screw up references to ``.''. */
2237 bfd_reloc_code_real_type reloc;
2240 #define MAX_INSN_FIXUPS (5)
2242 /* This routine is called for each instruction to be assembled. */
2245 md_assemble (char *str)
2248 const struct powerpc_opcode *opcode;
2250 const unsigned char *opindex_ptr;
2254 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2260 bfd_reloc_code_real_type reloc;
2263 /* Get the opcode. */
2264 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2269 /* Look up the opcode in the hash table. */
2270 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2271 if (opcode == (const struct powerpc_opcode *) NULL)
2273 const struct powerpc_macro *macro;
2275 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2276 if (macro == (const struct powerpc_macro *) NULL)
2277 as_bad (_("Unrecognized opcode: `%s'"), str);
2279 ppc_macro (s, macro);
2284 insn = opcode->opcode;
2287 while (ISSPACE (*str))
2290 /* PowerPC operands are just expressions. The only real issue is
2291 that a few operand types are optional. All cases which might use
2292 an optional operand separate the operands only with commas (in some
2293 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2294 have optional operands). Most instructions with optional operands
2295 have only one. Those that have more than one optional operand can
2296 take either all their operands or none. So, before we start seriously
2297 parsing the operands, we check to see if we have optional operands,
2298 and if we do, we count the number of commas to see which operands
2299 have been omitted. */
2301 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2303 const struct powerpc_operand *operand;
2305 operand = &powerpc_operands[*opindex_ptr];
2306 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2308 unsigned int opcount;
2309 unsigned int num_operands_expected;
2312 /* There is an optional operand. Count the number of
2313 commas in the input line. */
2320 while ((s = strchr (s, ',')) != (char *) NULL)
2327 /* Compute the number of expected operands.
2328 Do not count fake operands. */
2329 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2330 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2331 ++ num_operands_expected;
2333 /* If there are fewer operands in the line then are called
2334 for by the instruction, we want to skip the optional
2336 if (opcount < num_operands_expected)
2343 /* Gather the operands. */
2347 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2349 const struct powerpc_operand *operand;
2355 if (next_opindex == 0)
2356 operand = &powerpc_operands[*opindex_ptr];
2359 operand = &powerpc_operands[next_opindex];
2364 /* If this is a fake operand, then we do not expect anything
2366 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2368 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2369 if (errmsg != (const char *) NULL)
2374 /* If this is an optional operand, and we are skipping it, just
2376 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2379 if (operand->insert)
2381 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2382 if (errmsg != (const char *) NULL)
2385 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2386 next_opindex = *opindex_ptr + 1;
2390 /* Gather the operand. */
2391 hold = input_line_pointer;
2392 input_line_pointer = str;
2395 if (*input_line_pointer == '[')
2397 /* We are expecting something like the second argument here:
2399 * lwz r4,[toc].GS.0.static_int(rtoc)
2400 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2401 * The argument following the `]' must be a symbol name, and the
2402 * register must be the toc register: 'rtoc' or '2'
2404 * The effect is to 0 as the displacement field
2405 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2406 * the appropriate variation) reloc against it based on the symbol.
2407 * The linker will build the toc, and insert the resolved toc offset.
2410 * o The size of the toc entry is currently assumed to be
2411 * 32 bits. This should not be assumed to be a hard coded
2413 * o In an effort to cope with a change from 32 to 64 bits,
2414 * there are also toc entries that are specified to be
2415 * either 32 or 64 bits:
2416 * lwz r4,[toc32].GS.0.static_int(rtoc)
2417 * lwz r4,[toc64].GS.0.static_int(rtoc)
2418 * These demand toc entries of the specified size, and the
2419 * instruction probably requires it.
2423 enum toc_size_qualifier toc_kind;
2424 bfd_reloc_code_real_type toc_reloc;
2426 /* Go parse off the [tocXX] part. */
2427 valid_toc = parse_toc_entry (&toc_kind);
2431 /* Note: message has already been issued.
2432 FIXME: what sort of recovery should we do?
2433 demand_rest_of_line (); return; ? */
2436 /* Now get the symbol following the ']'. */
2442 /* In this case, we may not have seen the symbol yet,
2443 since it is allowed to appear on a .extern or .globl
2444 or just be a label in the .data section. */
2445 toc_reloc = BFD_RELOC_PPC_TOC16;
2448 /* 1. The symbol must be defined and either in the toc
2449 section, or a global.
2450 2. The reloc generated must have the TOCDEFN flag set
2451 in upper bit mess of the reloc type.
2452 FIXME: It's a little confusing what the tocv
2453 qualifier can be used for. At the very least, I've
2454 seen three uses, only one of which I'm sure I can
2456 if (ex.X_op == O_symbol)
2458 assert (ex.X_add_symbol != NULL);
2459 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2462 as_bad (_("[tocv] symbol is not a toc symbol"));
2466 toc_reloc = BFD_RELOC_PPC_TOC16;
2469 /* FIXME: these next two specifically specify 32/64 bit
2470 toc entries. We don't support them today. Is this
2471 the right way to say that? */
2472 toc_reloc = BFD_RELOC_UNUSED;
2473 as_bad (_("Unimplemented toc32 expression modifier"));
2476 /* FIXME: see above. */
2477 toc_reloc = BFD_RELOC_UNUSED;
2478 as_bad (_("Unimplemented toc64 expression modifier"));
2482 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2488 /* We need to generate a fixup for this expression. */
2489 if (fc >= MAX_INSN_FIXUPS)
2490 as_fatal (_("too many fixups"));
2492 fixups[fc].reloc = toc_reloc;
2493 fixups[fc].exp = ex;
2494 fixups[fc].opindex = *opindex_ptr;
2497 /* Ok. We've set up the fixup for the instruction. Now make it
2498 look like the constant 0 was found here. */
2500 ex.X_op = O_constant;
2501 ex.X_add_number = 0;
2502 ex.X_add_symbol = NULL;
2503 ex.X_op_symbol = NULL;
2509 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2510 || !register_name (&ex))
2512 char save_lex = lex_type['%'];
2514 if ((operand->flags & PPC_OPERAND_CR) != 0)
2517 lex_type['%'] |= LEX_BEGIN_NAME;
2521 lex_type['%'] = save_lex;
2525 str = input_line_pointer;
2526 input_line_pointer = hold;
2528 if (ex.X_op == O_illegal)
2529 as_bad (_("illegal operand"));
2530 else if (ex.X_op == O_absent)
2531 as_bad (_("missing operand"));
2532 else if (ex.X_op == O_register)
2534 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2535 ppc_cpu, (char *) NULL, 0);
2537 else if (ex.X_op == O_constant)
2540 /* Allow @HA, @L, @H on constants. */
2541 char *orig_str = str;
2543 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2550 case BFD_RELOC_LO16:
2551 /* X_unsigned is the default, so if the user has done
2552 something which cleared it, we always produce a
2554 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2555 ex.X_add_number &= 0xffff;
2557 ex.X_add_number = SEX16 (ex.X_add_number);
2560 case BFD_RELOC_HI16:
2561 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2562 ex.X_add_number = PPC_HI (ex.X_add_number);
2564 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2567 case BFD_RELOC_HI16_S:
2568 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2569 ex.X_add_number = PPC_HA (ex.X_add_number);
2571 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2574 case BFD_RELOC_PPC64_HIGHER:
2575 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2576 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2578 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2581 case BFD_RELOC_PPC64_HIGHER_S:
2582 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2583 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2585 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2588 case BFD_RELOC_PPC64_HIGHEST:
2589 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2590 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2592 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2595 case BFD_RELOC_PPC64_HIGHEST_S:
2596 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2597 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2599 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2602 #endif /* OBJ_ELF */
2603 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2604 ppc_cpu, (char *) NULL, 0);
2607 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2609 /* Some TLS tweaks. */
2614 case BFD_RELOC_PPC_TLS:
2615 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2616 ppc_cpu, (char *) NULL, 0);
2618 /* We'll only use the 32 (or 64) bit form of these relocations
2619 in constants. Instructions get the 16 bit form. */
2620 case BFD_RELOC_PPC_DTPREL:
2621 reloc = BFD_RELOC_PPC_DTPREL16;
2623 case BFD_RELOC_PPC_TPREL:
2624 reloc = BFD_RELOC_PPC_TPREL16;
2628 /* For the absolute forms of branches, convert the PC
2629 relative form back into the absolute. */
2630 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2634 case BFD_RELOC_PPC_B26:
2635 reloc = BFD_RELOC_PPC_BA26;
2637 case BFD_RELOC_PPC_B16:
2638 reloc = BFD_RELOC_PPC_BA16;
2640 case BFD_RELOC_PPC_B16_BRTAKEN:
2641 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2643 case BFD_RELOC_PPC_B16_BRNTAKEN:
2644 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2652 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2657 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2659 case BFD_RELOC_LO16:
2660 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2662 case BFD_RELOC_16_GOTOFF:
2663 reloc = BFD_RELOC_PPC64_GOT16_DS;
2665 case BFD_RELOC_LO16_GOTOFF:
2666 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2668 case BFD_RELOC_LO16_PLTOFF:
2669 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2671 case BFD_RELOC_16_BASEREL:
2672 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2674 case BFD_RELOC_LO16_BASEREL:
2675 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2677 case BFD_RELOC_PPC_TOC16:
2678 reloc = BFD_RELOC_PPC64_TOC16_DS;
2680 case BFD_RELOC_PPC64_TOC16_LO:
2681 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2683 case BFD_RELOC_PPC64_PLTGOT16:
2684 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2686 case BFD_RELOC_PPC64_PLTGOT16_LO:
2687 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2689 case BFD_RELOC_PPC_DTPREL16:
2690 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2692 case BFD_RELOC_PPC_DTPREL16_LO:
2693 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2695 case BFD_RELOC_PPC_TPREL16:
2696 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2698 case BFD_RELOC_PPC_TPREL16_LO:
2699 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2701 case BFD_RELOC_PPC_GOT_DTPREL16:
2702 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2703 case BFD_RELOC_PPC_GOT_TPREL16:
2704 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2707 as_bad (_("unsupported relocation for DS offset field"));
2712 /* We need to generate a fixup for this expression. */
2713 if (fc >= MAX_INSN_FIXUPS)
2714 as_fatal (_("too many fixups"));
2715 fixups[fc].exp = ex;
2716 fixups[fc].opindex = 0;
2717 fixups[fc].reloc = reloc;
2720 #endif /* OBJ_ELF */
2724 /* We need to generate a fixup for this expression. */
2725 if (fc >= MAX_INSN_FIXUPS)
2726 as_fatal (_("too many fixups"));
2727 fixups[fc].exp = ex;
2728 fixups[fc].opindex = *opindex_ptr;
2729 fixups[fc].reloc = BFD_RELOC_UNUSED;
2737 /* If expecting more operands, then we want to see "),". */
2738 if (*str == endc && opindex_ptr[1] != 0)
2742 while (ISSPACE (*str));
2746 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2754 /* The call to expression should have advanced str past any
2757 && (endc != ',' || *str != '\0'))
2759 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2767 while (ISSPACE (*str))
2771 as_bad (_("junk at end of line: `%s'"), str);
2774 /* Do we need/want a APUinfo section? */
2775 if (ppc_cpu & (PPC_OPCODE_SPE
2776 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2777 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2778 | PPC_OPCODE_RFMCI))
2780 /* These are all version "1". */
2781 if (opcode->flags & PPC_OPCODE_SPE)
2782 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2783 if (opcode->flags & PPC_OPCODE_ISEL)
2784 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2785 if (opcode->flags & PPC_OPCODE_EFS)
2786 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2787 if (opcode->flags & PPC_OPCODE_BRLOCK)
2788 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2789 if (opcode->flags & PPC_OPCODE_PMR)
2790 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2791 if (opcode->flags & PPC_OPCODE_CACHELCK)
2792 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2793 if (opcode->flags & PPC_OPCODE_RFMCI)
2794 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2798 /* Write out the instruction. */
2800 addr_mod = frag_now_fix () & 3;
2801 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2802 as_bad (_("instruction address is not a multiple of 4"));
2803 frag_now->insn_addr = addr_mod;
2804 frag_now->has_code = 1;
2805 md_number_to_chars (f, insn, 4);
2808 dwarf2_emit_insn (4);
2811 /* Create any fixups. At this point we do not use a
2812 bfd_reloc_code_real_type, but instead just use the
2813 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2814 handle fixups for any operand type, although that is admittedly
2815 not a very exciting feature. We pick a BFD reloc type in
2817 for (i = 0; i < fc; i++)
2819 const struct powerpc_operand *operand;
2821 operand = &powerpc_operands[fixups[i].opindex];
2822 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2824 reloc_howto_type *reloc_howto;
2829 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2833 size = bfd_get_reloc_size (reloc_howto);
2834 offset = target_big_endian ? (4 - size) : 0;
2836 if (size < 1 || size > 4)
2839 fixP = fix_new_exp (frag_now,
2840 f - frag_now->fr_literal + offset,
2843 reloc_howto->pc_relative,
2846 /* Turn off complaints that the addend is too large for things like
2848 switch (fixups[i].reloc)
2850 case BFD_RELOC_16_GOTOFF:
2851 case BFD_RELOC_PPC_TOC16:
2852 case BFD_RELOC_LO16:
2853 case BFD_RELOC_HI16:
2854 case BFD_RELOC_HI16_S:
2856 case BFD_RELOC_PPC64_HIGHER:
2857 case BFD_RELOC_PPC64_HIGHER_S:
2858 case BFD_RELOC_PPC64_HIGHEST:
2859 case BFD_RELOC_PPC64_HIGHEST_S:
2861 fixP->fx_no_overflow = 1;
2868 fix_new_exp (frag_now,
2869 f - frag_now->fr_literal,
2872 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2873 ((bfd_reloc_code_real_type)
2874 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2878 /* Handle a macro. Gather all the operands, transform them as
2879 described by the macro, and call md_assemble recursively. All the
2880 operands are separated by commas; we don't accept parentheses
2881 around operands here. */
2884 ppc_macro (char *str, const struct powerpc_macro *macro)
2895 /* Gather the users operands into the operands array. */
2900 if (count >= sizeof operands / sizeof operands[0])
2902 operands[count++] = s;
2903 s = strchr (s, ',');
2904 if (s == (char *) NULL)
2909 if (count != macro->operands)
2911 as_bad (_("wrong number of operands"));
2915 /* Work out how large the string must be (the size is unbounded
2916 because it includes user input). */
2918 format = macro->format;
2919 while (*format != '\0')
2928 arg = strtol (format + 1, &send, 10);
2929 know (send != format && arg < count);
2930 len += strlen (operands[arg]);
2935 /* Put the string together. */
2936 complete = s = (char *) alloca (len + 1);
2937 format = macro->format;
2938 while (*format != '\0')
2944 arg = strtol (format + 1, &send, 10);
2945 strcpy (s, operands[arg]);
2952 /* Assemble the constructed instruction. */
2953 md_assemble (complete);
2957 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2960 ppc_section_letter (int letter, char **ptr_msg)
2965 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2970 ppc_section_word (char *str, size_t len)
2972 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2979 ppc_section_type (char *str, size_t len)
2981 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2988 ppc_section_flags (int flags, int attr, int type)
2990 if (type == SHT_ORDERED)
2991 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2993 if (attr & SHF_EXCLUDE)
2994 flags |= SEC_EXCLUDE;
2998 #endif /* OBJ_ELF */
3001 /* Pseudo-op handling. */
3003 /* The .byte pseudo-op. This is similar to the normal .byte
3004 pseudo-op, but it can also take a single ASCII string. */
3007 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3009 if (*input_line_pointer != '\"')
3015 /* Gather characters. A real double quote is doubled. Unusual
3016 characters are not permitted. */
3017 ++input_line_pointer;
3022 c = *input_line_pointer++;
3026 if (*input_line_pointer != '\"')
3028 ++input_line_pointer;
3031 FRAG_APPEND_1_CHAR (c);
3034 demand_empty_rest_of_line ();
3039 /* XCOFF specific pseudo-op handling. */
3041 /* This is set if we are creating a .stabx symbol, since we don't want
3042 to handle symbol suffixes for such symbols. */
3043 static bfd_boolean ppc_stab_symbol;
3045 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3046 symbols in the .bss segment as though they were local common
3047 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3048 aligns .comm and .lcomm to 4 bytes. */
3051 ppc_comm (int lcomm)
3053 asection *current_seg = now_seg;
3054 subsegT current_subseg = now_subseg;
3060 symbolS *lcomm_sym = NULL;
3064 name = input_line_pointer;
3065 endc = get_symbol_end ();
3066 end_name = input_line_pointer;
3069 if (*input_line_pointer != ',')
3071 as_bad (_("missing size"));
3072 ignore_rest_of_line ();
3075 ++input_line_pointer;
3077 size = get_absolute_expression ();
3080 as_bad (_("negative size"));
3081 ignore_rest_of_line ();
3087 /* The third argument to .comm is the alignment. */
3088 if (*input_line_pointer != ',')
3092 ++input_line_pointer;
3093 align = get_absolute_expression ();
3096 as_warn (_("ignoring bad alignment"));
3111 /* The third argument to .lcomm appears to be the real local
3112 common symbol to create. References to the symbol named in
3113 the first argument are turned into references to the third
3115 if (*input_line_pointer != ',')
3117 as_bad (_("missing real symbol name"));
3118 ignore_rest_of_line ();
3121 ++input_line_pointer;
3123 lcomm_name = input_line_pointer;
3124 lcomm_endc = get_symbol_end ();
3126 lcomm_sym = symbol_find_or_make (lcomm_name);
3128 *input_line_pointer = lcomm_endc;
3132 sym = symbol_find_or_make (name);
3135 if (S_IS_DEFINED (sym)
3136 || S_GET_VALUE (sym) != 0)
3138 as_bad (_("attempt to redefine symbol"));
3139 ignore_rest_of_line ();
3143 record_alignment (bss_section, align);
3146 || ! S_IS_DEFINED (lcomm_sym))
3155 S_SET_EXTERNAL (sym);
3159 symbol_get_tc (lcomm_sym)->output = 1;
3160 def_sym = lcomm_sym;
3164 subseg_set (bss_section, 1);
3165 frag_align (align, 0, 0);
3167 symbol_set_frag (def_sym, frag_now);
3168 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3169 def_size, (char *) NULL);
3171 S_SET_SEGMENT (def_sym, bss_section);
3172 symbol_get_tc (def_sym)->align = align;
3176 /* Align the size of lcomm_sym. */
3177 symbol_get_frag (lcomm_sym)->fr_offset =
3178 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3179 &~ ((1 << align) - 1));
3180 if (align > symbol_get_tc (lcomm_sym)->align)
3181 symbol_get_tc (lcomm_sym)->align = align;
3186 /* Make sym an offset from lcomm_sym. */
3187 S_SET_SEGMENT (sym, bss_section);
3188 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3189 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3190 symbol_get_frag (lcomm_sym)->fr_offset += size;
3193 subseg_set (current_seg, current_subseg);
3195 demand_empty_rest_of_line ();
3198 /* The .csect pseudo-op. This switches us into a different
3199 subsegment. The first argument is a symbol whose value is the
3200 start of the .csect. In COFF, csect symbols get special aux
3201 entries defined by the x_csect field of union internal_auxent. The
3202 optional second argument is the alignment (the default is 2). */
3205 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3212 name = input_line_pointer;
3213 endc = get_symbol_end ();
3215 sym = symbol_find_or_make (name);
3217 *input_line_pointer = endc;
3219 if (S_GET_NAME (sym)[0] == '\0')
3221 /* An unnamed csect is assumed to be [PR]. */
3222 symbol_get_tc (sym)->class = XMC_PR;
3226 if (*input_line_pointer == ',')
3228 ++input_line_pointer;
3229 align = get_absolute_expression ();
3232 ppc_change_csect (sym, align);
3234 demand_empty_rest_of_line ();
3237 /* Change to a different csect. */
3240 ppc_change_csect (symbolS *sym, offsetT align)
3242 if (S_IS_DEFINED (sym))
3243 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3253 /* This is a new csect. We need to look at the symbol class to
3254 figure out whether it should go in the text section or the
3258 switch (symbol_get_tc (sym)->class)
3268 S_SET_SEGMENT (sym, text_section);
3269 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3270 ++ppc_text_subsegment;
3271 list_ptr = &ppc_text_csects;
3281 if (ppc_toc_csect != NULL
3282 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3283 == ppc_data_subsegment))
3285 S_SET_SEGMENT (sym, data_section);
3286 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3287 ++ppc_data_subsegment;
3288 list_ptr = &ppc_data_csects;
3294 /* We set the obstack chunk size to a small value before
3295 changing subsegments, so that we don't use a lot of memory
3296 space for what may be a small section. */
3297 hold_chunksize = chunksize;
3300 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3301 symbol_get_tc (sym)->subseg);
3303 chunksize = hold_chunksize;
3306 ppc_after_toc_frag = frag_now;
3308 record_alignment (sec, align);
3310 frag_align_code (align, 0);
3312 frag_align (align, 0, 0);
3314 symbol_set_frag (sym, frag_now);
3315 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3317 symbol_get_tc (sym)->align = align;
3318 symbol_get_tc (sym)->output = 1;
3319 symbol_get_tc (sym)->within = sym;
3321 for (list = *list_ptr;
3322 symbol_get_tc (list)->next != (symbolS *) NULL;
3323 list = symbol_get_tc (list)->next)
3325 symbol_get_tc (list)->next = sym;
3327 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3328 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3332 ppc_current_csect = sym;
3335 /* This function handles the .text and .data pseudo-ops. These
3336 pseudo-ops aren't really used by XCOFF; we implement them for the
3337 convenience of people who aren't used to XCOFF. */
3340 ppc_section (int type)
3347 else if (type == 'd')
3352 sym = symbol_find_or_make (name);
3354 ppc_change_csect (sym, 2);
3356 demand_empty_rest_of_line ();
3359 /* This function handles the .section pseudo-op. This is mostly to
3360 give an error, since XCOFF only supports .text, .data and .bss, but
3361 we do permit the user to name the text or data section. */
3364 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3367 const char *real_name;
3371 user_name = input_line_pointer;
3372 c = get_symbol_end ();
3374 if (strcmp (user_name, ".text") == 0)
3375 real_name = ".text[PR]";
3376 else if (strcmp (user_name, ".data") == 0)
3377 real_name = ".data[RW]";
3380 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3381 *input_line_pointer = c;
3382 ignore_rest_of_line ();
3386 *input_line_pointer = c;
3388 sym = symbol_find_or_make (real_name);
3390 ppc_change_csect (sym, 2);
3392 demand_empty_rest_of_line ();
3395 /* The .extern pseudo-op. We create an undefined symbol. */
3398 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3403 name = input_line_pointer;
3404 endc = get_symbol_end ();
3406 (void) symbol_find_or_make (name);
3408 *input_line_pointer = endc;
3410 demand_empty_rest_of_line ();
3413 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3416 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3422 name = input_line_pointer;
3423 endc = get_symbol_end ();
3425 sym = symbol_find_or_make (name);
3427 *input_line_pointer = endc;
3429 symbol_get_tc (sym)->output = 1;
3431 demand_empty_rest_of_line ();
3434 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3435 although I don't know why it bothers. */
3438 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3445 name = input_line_pointer;
3446 endc = get_symbol_end ();
3448 sym = symbol_find_or_make (name);
3450 *input_line_pointer = endc;
3452 if (*input_line_pointer != ',')
3454 as_bad (_("missing rename string"));
3455 ignore_rest_of_line ();
3458 ++input_line_pointer;
3460 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3462 demand_empty_rest_of_line ();
3465 /* The .stabx pseudo-op. This is similar to a normal .stabs
3466 pseudo-op, but slightly different. A sample is
3467 .stabx "main:F-1",.main,142,0
3468 The first argument is the symbol name to create. The second is the
3469 value, and the third is the storage class. The fourth seems to be
3470 always zero, and I am assuming it is the type. */
3473 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3480 name = demand_copy_C_string (&len);
3482 if (*input_line_pointer != ',')
3484 as_bad (_("missing value"));
3487 ++input_line_pointer;
3489 ppc_stab_symbol = TRUE;
3490 sym = symbol_make (name);
3491 ppc_stab_symbol = FALSE;
3493 symbol_get_tc (sym)->real_name = name;
3495 (void) expression (&exp);
3502 as_bad (_("illegal .stabx expression; zero assumed"));
3503 exp.X_add_number = 0;
3506 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3507 symbol_set_frag (sym, &zero_address_frag);
3511 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3512 symbol_set_value_expression (sym, &exp);
3516 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3517 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3522 /* The value is some complex expression. This will probably
3523 fail at some later point, but this is probably the right
3524 thing to do here. */
3525 symbol_set_value_expression (sym, &exp);
3529 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3530 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3532 if (*input_line_pointer != ',')
3534 as_bad (_("missing class"));
3537 ++input_line_pointer;
3539 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3541 if (*input_line_pointer != ',')
3543 as_bad (_("missing type"));
3546 ++input_line_pointer;
3548 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3550 symbol_get_tc (sym)->output = 1;
3552 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3554 symbol_get_tc (sym)->within = ppc_current_block;
3559 .stabx "z",arrays_,133,0
3562 .comm arrays_,13768,3
3564 resolve_symbol_value will copy the exp's "within" into sym's when the
3565 offset is 0. Since this seems to be corner case problem,
3566 only do the correction for storage class C_STSYM. A better solution
3567 would be to have the tc field updated in ppc_symbol_new_hook. */
3569 if (exp.X_op == O_symbol)
3571 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3575 if (exp.X_op != O_symbol
3576 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3577 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3578 ppc_frob_label (sym);
3581 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3582 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3583 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3584 symbol_get_tc (ppc_current_csect)->within = sym;
3587 demand_empty_rest_of_line ();
3590 /* The .function pseudo-op. This takes several arguments. The first
3591 argument seems to be the external name of the symbol. The second
3592 argument seems to be the label for the start of the function. gcc
3593 uses the same name for both. I have no idea what the third and
3594 fourth arguments are meant to be. The optional fifth argument is
3595 an expression for the size of the function. In COFF this symbol
3596 gets an aux entry like that used for a csect. */
3599 ppc_function (int ignore ATTRIBUTE_UNUSED)
3607 name = input_line_pointer;
3608 endc = get_symbol_end ();
3610 /* Ignore any [PR] suffix. */
3611 name = ppc_canonicalize_symbol_name (name);
3612 s = strchr (name, '[');
3613 if (s != (char *) NULL
3614 && strcmp (s + 1, "PR]") == 0)
3617 ext_sym = symbol_find_or_make (name);
3619 *input_line_pointer = endc;
3621 if (*input_line_pointer != ',')
3623 as_bad (_("missing symbol name"));
3624 ignore_rest_of_line ();
3627 ++input_line_pointer;
3629 name = input_line_pointer;
3630 endc = get_symbol_end ();
3632 lab_sym = symbol_find_or_make (name);
3634 *input_line_pointer = endc;
3636 if (ext_sym != lab_sym)
3640 exp.X_op = O_symbol;
3641 exp.X_add_symbol = lab_sym;
3642 exp.X_op_symbol = NULL;
3643 exp.X_add_number = 0;
3645 symbol_set_value_expression (ext_sym, &exp);
3648 if (symbol_get_tc (ext_sym)->class == -1)
3649 symbol_get_tc (ext_sym)->class = XMC_PR;
3650 symbol_get_tc (ext_sym)->output = 1;
3652 if (*input_line_pointer == ',')
3656 /* Ignore the third argument. */
3657 ++input_line_pointer;
3658 expression (&ignore);
3659 if (*input_line_pointer == ',')
3661 /* Ignore the fourth argument. */
3662 ++input_line_pointer;
3663 expression (&ignore);
3664 if (*input_line_pointer == ',')
3666 /* The fifth argument is the function size. */
3667 ++input_line_pointer;
3668 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3671 &zero_address_frag);
3672 pseudo_set (symbol_get_tc (ext_sym)->size);
3677 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3678 SF_SET_FUNCTION (ext_sym);
3679 SF_SET_PROCESS (ext_sym);
3680 coff_add_linesym (ext_sym);
3682 demand_empty_rest_of_line ();
3685 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3686 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3687 with the correct line number */
3689 static symbolS *saved_bi_sym = 0;
3692 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3696 sym = symbol_make (".bf");
3697 S_SET_SEGMENT (sym, text_section);
3698 symbol_set_frag (sym, frag_now);
3699 S_SET_VALUE (sym, frag_now_fix ());
3700 S_SET_STORAGE_CLASS (sym, C_FCN);
3702 coff_line_base = get_absolute_expression ();
3704 S_SET_NUMBER_AUXILIARY (sym, 1);
3705 SA_SET_SYM_LNNO (sym, coff_line_base);
3707 /* Line number for bi. */
3710 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3715 symbol_get_tc (sym)->output = 1;
3717 ppc_frob_label (sym);
3719 demand_empty_rest_of_line ();
3722 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3723 ".ef", except that the line number is absolute, not relative to the
3724 most recent ".bf" symbol. */
3727 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3731 sym = symbol_make (".ef");
3732 S_SET_SEGMENT (sym, text_section);
3733 symbol_set_frag (sym, frag_now);
3734 S_SET_VALUE (sym, frag_now_fix ());
3735 S_SET_STORAGE_CLASS (sym, C_FCN);
3736 S_SET_NUMBER_AUXILIARY (sym, 1);
3737 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3738 symbol_get_tc (sym)->output = 1;
3740 ppc_frob_label (sym);
3742 demand_empty_rest_of_line ();
3745 /* The .bi and .ei pseudo-ops. These take a string argument and
3746 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3747 the symbol list. The value of .bi will be know when the next .bf
3753 static symbolS *last_biei;
3760 name = demand_copy_C_string (&len);
3762 /* The value of these symbols is actually file offset. Here we set
3763 the value to the index into the line number entries. In
3764 ppc_frob_symbols we set the fix_line field, which will cause BFD
3765 to do the right thing. */
3767 sym = symbol_make (name);
3768 /* obj-coff.c currently only handles line numbers correctly in the
3770 S_SET_SEGMENT (sym, text_section);
3771 S_SET_VALUE (sym, coff_n_line_nos);
3772 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3774 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3775 symbol_get_tc (sym)->output = 1;
3783 for (look = last_biei ? last_biei : symbol_rootP;
3784 (look != (symbolS *) NULL
3785 && (S_GET_STORAGE_CLASS (look) == C_FILE
3786 || S_GET_STORAGE_CLASS (look) == C_BINCL
3787 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3788 look = symbol_next (look))
3790 if (look != (symbolS *) NULL)
3792 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3793 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3797 demand_empty_rest_of_line ();
3800 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3801 There is one argument, which is a csect symbol. The value of the
3802 .bs symbol is the index of this csect symbol. */
3805 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3812 if (ppc_current_block != NULL)
3813 as_bad (_("nested .bs blocks"));
3815 name = input_line_pointer;
3816 endc = get_symbol_end ();
3818 csect = symbol_find_or_make (name);
3820 *input_line_pointer = endc;
3822 sym = symbol_make (".bs");
3823 S_SET_SEGMENT (sym, now_seg);
3824 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3825 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3826 symbol_get_tc (sym)->output = 1;
3828 symbol_get_tc (sym)->within = csect;
3830 ppc_frob_label (sym);
3832 ppc_current_block = sym;
3834 demand_empty_rest_of_line ();
3837 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3840 ppc_es (int ignore ATTRIBUTE_UNUSED)
3844 if (ppc_current_block == NULL)
3845 as_bad (_(".es without preceding .bs"));
3847 sym = symbol_make (".es");
3848 S_SET_SEGMENT (sym, now_seg);
3849 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3850 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3851 symbol_get_tc (sym)->output = 1;
3853 ppc_frob_label (sym);
3855 ppc_current_block = NULL;
3857 demand_empty_rest_of_line ();
3860 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3864 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3868 sym = symbol_make (".bb");
3869 S_SET_SEGMENT (sym, text_section);
3870 symbol_set_frag (sym, frag_now);
3871 S_SET_VALUE (sym, frag_now_fix ());
3872 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3874 S_SET_NUMBER_AUXILIARY (sym, 1);
3875 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3877 symbol_get_tc (sym)->output = 1;
3879 SF_SET_PROCESS (sym);
3881 ppc_frob_label (sym);
3883 demand_empty_rest_of_line ();
3886 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3890 ppc_eb (int ignore ATTRIBUTE_UNUSED)
3894 sym = symbol_make (".eb");
3895 S_SET_SEGMENT (sym, text_section);
3896 symbol_set_frag (sym, frag_now);
3897 S_SET_VALUE (sym, frag_now_fix ());
3898 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3899 S_SET_NUMBER_AUXILIARY (sym, 1);
3900 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3901 symbol_get_tc (sym)->output = 1;
3903 SF_SET_PROCESS (sym);
3905 ppc_frob_label (sym);
3907 demand_empty_rest_of_line ();
3910 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3914 ppc_bc (int ignore ATTRIBUTE_UNUSED)
3920 name = demand_copy_C_string (&len);
3921 sym = symbol_make (name);
3922 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3923 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3924 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3925 S_SET_VALUE (sym, 0);
3926 symbol_get_tc (sym)->output = 1;
3928 ppc_frob_label (sym);
3930 demand_empty_rest_of_line ();
3933 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3936 ppc_ec (int ignore ATTRIBUTE_UNUSED)
3940 sym = symbol_make (".ec");
3941 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3942 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3943 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3944 S_SET_VALUE (sym, 0);
3945 symbol_get_tc (sym)->output = 1;
3947 ppc_frob_label (sym);
3949 demand_empty_rest_of_line ();
3952 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3955 ppc_toc (int ignore ATTRIBUTE_UNUSED)
3957 if (ppc_toc_csect != (symbolS *) NULL)
3958 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3965 subseg = ppc_data_subsegment;
3966 ++ppc_data_subsegment;
3968 subseg_new (segment_name (data_section), subseg);
3969 ppc_toc_frag = frag_now;
3971 sym = symbol_find_or_make ("TOC[TC0]");
3972 symbol_set_frag (sym, frag_now);
3973 S_SET_SEGMENT (sym, data_section);
3974 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3975 symbol_get_tc (sym)->subseg = subseg;
3976 symbol_get_tc (sym)->output = 1;
3977 symbol_get_tc (sym)->within = sym;
3979 ppc_toc_csect = sym;
3981 for (list = ppc_data_csects;
3982 symbol_get_tc (list)->next != (symbolS *) NULL;
3983 list = symbol_get_tc (list)->next)
3985 symbol_get_tc (list)->next = sym;
3987 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3988 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3992 ppc_current_csect = ppc_toc_csect;
3994 demand_empty_rest_of_line ();
3997 /* The AIX assembler automatically aligns the operands of a .long or
3998 .short pseudo-op, and we want to be compatible. */
4001 ppc_xcoff_cons (int log_size)
4003 frag_align (log_size, 0, 0);
4004 record_alignment (now_seg, log_size);
4005 cons (1 << log_size);
4009 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4014 (void) expression (&exp);
4016 if (exp.X_op != O_constant)
4018 as_bad (_("non-constant byte count"));
4022 byte_count = exp.X_add_number;
4024 if (*input_line_pointer != ',')
4026 as_bad (_("missing value"));
4030 ++input_line_pointer;
4034 #endif /* OBJ_XCOFF */
4035 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4037 /* The .tc pseudo-op. This is used when generating either XCOFF or
4038 ELF. This takes two or more arguments.
4040 When generating XCOFF output, the first argument is the name to
4041 give to this location in the toc; this will be a symbol with class
4042 TC. The rest of the arguments are N-byte values to actually put at
4043 this location in the TOC; often there is just one more argument, a
4044 relocatable symbol reference. The size of the value to store
4045 depends on target word size. A 32-bit target uses 4-byte values, a
4046 64-bit target uses 8-byte values.
4048 When not generating XCOFF output, the arguments are the same, but
4049 the first argument is simply ignored. */
4052 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4056 /* Define the TOC symbol name. */
4062 if (ppc_toc_csect == (symbolS *) NULL
4063 || ppc_toc_csect != ppc_current_csect)
4065 as_bad (_(".tc not in .toc section"));
4066 ignore_rest_of_line ();
4070 name = input_line_pointer;
4071 endc = get_symbol_end ();
4073 sym = symbol_find_or_make (name);
4075 *input_line_pointer = endc;
4077 if (S_IS_DEFINED (sym))
4081 label = symbol_get_tc (ppc_current_csect)->within;
4082 if (symbol_get_tc (label)->class != XMC_TC0)
4084 as_bad (_(".tc with no label"));
4085 ignore_rest_of_line ();
4089 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4090 symbol_set_frag (label, symbol_get_frag (sym));
4091 S_SET_VALUE (label, S_GET_VALUE (sym));
4093 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4094 ++input_line_pointer;
4099 S_SET_SEGMENT (sym, now_seg);
4100 symbol_set_frag (sym, frag_now);
4101 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4102 symbol_get_tc (sym)->class = XMC_TC;
4103 symbol_get_tc (sym)->output = 1;
4105 ppc_frob_label (sym);
4108 #endif /* OBJ_XCOFF */
4112 /* Skip the TOC symbol name. */
4113 while (is_part_of_name (*input_line_pointer)
4114 || *input_line_pointer == ' '
4115 || *input_line_pointer == '['
4116 || *input_line_pointer == ']'
4117 || *input_line_pointer == '{'
4118 || *input_line_pointer == '}')
4119 ++input_line_pointer;
4121 /* Align to a four/eight byte boundary. */
4122 align = ppc_obj64 ? 3 : 2;
4123 frag_align (align, 0, 0);
4124 record_alignment (now_seg, align);
4125 #endif /* OBJ_ELF */
4127 if (*input_line_pointer != ',')
4128 demand_empty_rest_of_line ();
4131 ++input_line_pointer;
4132 cons (ppc_obj64 ? 8 : 4);
4136 /* Pseudo-op .machine. */
4139 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4142 #define MAX_HISTORY 100
4143 static ppc_cpu_t *cpu_history;
4144 static int curr_hist;
4148 if (*input_line_pointer == '"')
4151 cpu_string = demand_copy_C_string (&len);
4156 cpu_string = input_line_pointer;
4157 c = get_symbol_end ();
4158 cpu_string = xstrdup (cpu_string);
4159 *input_line_pointer = c;
4162 if (cpu_string != NULL)
4164 ppc_cpu_t old_cpu = ppc_cpu;
4167 for (p = cpu_string; *p != 0; p++)
4170 if (strcmp (cpu_string, "push") == 0)
4172 if (cpu_history == NULL)
4173 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4175 if (curr_hist >= MAX_HISTORY)
4176 as_bad (_(".machine stack overflow"));
4178 cpu_history[curr_hist++] = ppc_cpu;
4180 else if (strcmp (cpu_string, "pop") == 0)
4183 as_bad (_(".machine stack underflow"));
4185 ppc_cpu = cpu_history[--curr_hist];
4187 else if (parse_cpu (cpu_string))
4190 as_bad (_("invalid machine `%s'"), cpu_string);
4192 if (ppc_cpu != old_cpu)
4193 ppc_setup_opcodes ();
4196 demand_empty_rest_of_line ();
4199 /* See whether a symbol is in the TOC section. */
4202 ppc_is_toc_sym (symbolS *sym)
4205 return symbol_get_tc (sym)->class == XMC_TC;
4208 const char *sname = segment_name (S_GET_SEGMENT (sym));
4210 return strcmp (sname, ".toc") == 0;
4212 return strcmp (sname, ".got") == 0;
4215 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4219 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4221 /* Set the current section. */
4223 ppc_set_current_section (segT new)
4225 ppc_previous_section = ppc_current_section;
4226 ppc_current_section = new;
4229 /* pseudo-op: .previous
4230 behaviour: toggles the current section with the previous section.
4232 warnings: "No previous section" */
4235 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4239 if (ppc_previous_section == NULL)
4241 as_warn (_("No previous section to return to. Directive ignored."));
4245 subseg_set (ppc_previous_section, 0);
4247 ppc_set_current_section (ppc_previous_section);
4250 /* pseudo-op: .pdata
4251 behaviour: predefined read only data section
4255 initial: .section .pdata "adr3"
4256 a - don't know -- maybe a misprint
4257 d - initialized data
4259 3 - double word aligned (that would be 4 byte boundary)
4262 Tag index tables (also known as the function table) for exception
4263 handling, debugging, etc. */
4266 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4268 if (pdata_section == 0)
4270 pdata_section = subseg_new (".pdata", 0);
4272 bfd_set_section_flags (stdoutput, pdata_section,
4273 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4274 | SEC_READONLY | SEC_DATA ));
4276 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4280 pdata_section = subseg_new (".pdata", 0);
4282 ppc_set_current_section (pdata_section);
4285 /* pseudo-op: .ydata
4286 behaviour: predefined read only data section
4290 initial: .section .ydata "drw3"
4291 a - don't know -- maybe a misprint
4292 d - initialized data
4294 3 - double word aligned (that would be 4 byte boundary)
4296 Tag tables (also known as the scope table) for exception handling,
4300 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4302 if (ydata_section == 0)
4304 ydata_section = subseg_new (".ydata", 0);
4305 bfd_set_section_flags (stdoutput, ydata_section,
4306 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4307 | SEC_READONLY | SEC_DATA ));
4309 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4313 ydata_section = subseg_new (".ydata", 0);
4315 ppc_set_current_section (ydata_section);
4318 /* pseudo-op: .reldata
4319 behaviour: predefined read write data section
4320 double word aligned (4-byte)
4321 FIXME: relocation is applied to it
4322 FIXME: what's the difference between this and .data?
4325 initial: .section .reldata "drw3"
4326 d - initialized data
4329 3 - double word aligned (that would be 8 byte boundary)
4332 Like .data, but intended to hold data subject to relocation, such as
4333 function descriptors, etc. */
4336 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4338 if (reldata_section == 0)
4340 reldata_section = subseg_new (".reldata", 0);
4342 bfd_set_section_flags (stdoutput, reldata_section,
4343 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4346 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4350 reldata_section = subseg_new (".reldata", 0);
4352 ppc_set_current_section (reldata_section);
4355 /* pseudo-op: .rdata
4356 behaviour: predefined read only data section
4360 initial: .section .rdata "dr3"
4361 d - initialized data
4363 3 - double word aligned (that would be 4 byte boundary) */
4366 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4368 if (rdata_section == 0)
4370 rdata_section = subseg_new (".rdata", 0);
4371 bfd_set_section_flags (stdoutput, rdata_section,
4372 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4373 | SEC_READONLY | SEC_DATA ));
4375 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4379 rdata_section = subseg_new (".rdata", 0);
4381 ppc_set_current_section (rdata_section);
4384 /* pseudo-op: .ualong
4385 behaviour: much like .int, with the exception that no alignment is
4387 FIXME: test the alignment statement
4392 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4398 /* pseudo-op: .znop <symbol name>
4399 behaviour: Issue a nop instruction
4400 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4401 the supplied symbol name.
4403 warnings: Missing symbol name */
4406 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4409 const struct powerpc_opcode *opcode;
4420 /* Strip out the symbol name. */
4421 symbol_name = input_line_pointer;
4422 c = get_symbol_end ();
4424 name = xmalloc (input_line_pointer - symbol_name + 1);
4425 strcpy (name, symbol_name);
4427 sym = symbol_find_or_make (name);
4429 *input_line_pointer = c;
4433 /* Look up the opcode in the hash table. */
4434 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4436 /* Stick in the nop. */
4437 insn = opcode->opcode;
4439 /* Write out the instruction. */
4441 md_number_to_chars (f, insn, 4);
4443 f - frag_now->fr_literal,
4448 BFD_RELOC_16_GOT_PCREL);
4458 ppc_pe_comm (int lcomm)
4467 name = input_line_pointer;
4468 c = get_symbol_end ();
4470 /* just after name is now '\0'. */
4471 p = input_line_pointer;
4474 if (*input_line_pointer != ',')
4476 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4477 ignore_rest_of_line ();
4481 input_line_pointer++; /* skip ',' */
4482 if ((temp = get_absolute_expression ()) < 0)
4484 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4485 ignore_rest_of_line ();
4491 /* The third argument to .comm is the alignment. */
4492 if (*input_line_pointer != ',')
4496 ++input_line_pointer;
4497 align = get_absolute_expression ();
4500 as_warn (_("ignoring bad alignment"));
4507 symbolP = symbol_find_or_make (name);
4510 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4512 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4513 S_GET_NAME (symbolP));
4514 ignore_rest_of_line ();
4518 if (S_GET_VALUE (symbolP))
4520 if (S_GET_VALUE (symbolP) != (valueT) temp)
4521 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4522 S_GET_NAME (symbolP),
4523 (long) S_GET_VALUE (symbolP),
4528 S_SET_VALUE (symbolP, (valueT) temp);
4529 S_SET_EXTERNAL (symbolP);
4530 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4533 demand_empty_rest_of_line ();
4537 * implement the .section pseudo op:
4538 * .section name {, "flags"}
4540 * | +--- optional flags: 'b' for bss
4542 * +-- section name 'l' for lib
4546 * 'd' (apparently m88k for data)
4548 * But if the argument is not a quoted string, treat it as a
4549 * subsegment number.
4551 * FIXME: this is a copy of the section processing from obj-coff.c, with
4552 * additions/changes for the moto-pas assembler support. There are three
4555 * FIXME: I just noticed this. This doesn't work at all really. It it
4556 * setting bits that bfd probably neither understands or uses. The
4557 * correct approach (?) will have to incorporate extra fields attached
4558 * to the section to hold the system specific stuff. (krk)
4561 * 'a' - unknown - referred to in documentation, but no definition supplied
4562 * 'c' - section has code
4563 * 'd' - section has initialized data
4564 * 'u' - section has uninitialized data
4565 * 'i' - section contains directives (info)
4566 * 'n' - section can be discarded
4567 * 'R' - remove section at link time
4569 * Section Protection:
4570 * 'r' - section is readable
4571 * 'w' - section is writeable
4572 * 'x' - section is executable
4573 * 's' - section is sharable
4575 * Section Alignment:
4576 * '0' - align to byte boundary
4577 * '1' - align to halfword undary
4578 * '2' - align to word boundary
4579 * '3' - align to doubleword boundary
4580 * '4' - align to quadword boundary
4581 * '5' - align to 32 byte boundary
4582 * '6' - align to 64 byte boundary
4587 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4589 /* Strip out the section name. */
4598 section_name = input_line_pointer;
4599 c = get_symbol_end ();
4601 name = xmalloc (input_line_pointer - section_name + 1);
4602 strcpy (name, section_name);
4604 *input_line_pointer = c;
4609 flags = SEC_NO_FLAGS;
4611 if (strcmp (name, ".idata$2") == 0)
4615 else if (strcmp (name, ".idata$3") == 0)
4619 else if (strcmp (name, ".idata$4") == 0)
4623 else if (strcmp (name, ".idata$5") == 0)
4627 else if (strcmp (name, ".idata$6") == 0)
4632 /* Default alignment to 16 byte boundary. */
4635 if (*input_line_pointer == ',')
4637 ++input_line_pointer;
4639 if (*input_line_pointer != '"')
4640 exp = get_absolute_expression ();
4643 ++input_line_pointer;
4644 while (*input_line_pointer != '"'
4645 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4647 switch (*input_line_pointer)
4649 /* Section Contents */
4650 case 'a': /* unknown */
4651 as_bad (_("Unsupported section attribute -- 'a'"));
4653 case 'c': /* code section */
4656 case 'd': /* section has initialized data */
4659 case 'u': /* section has uninitialized data */
4660 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4664 case 'i': /* section contains directives (info) */
4665 /* FIXME: This is IMAGE_SCN_LNK_INFO
4667 flags |= SEC_HAS_CONTENTS;
4669 case 'n': /* section can be discarded */
4672 case 'R': /* Remove section at link time */
4673 flags |= SEC_NEVER_LOAD;
4675 #if IFLICT_BRAIN_DAMAGE
4676 /* Section Protection */
4677 case 'r': /* section is readable */
4678 flags |= IMAGE_SCN_MEM_READ;
4680 case 'w': /* section is writeable */
4681 flags |= IMAGE_SCN_MEM_WRITE;
4683 case 'x': /* section is executable */
4684 flags |= IMAGE_SCN_MEM_EXECUTE;
4686 case 's': /* section is sharable */
4687 flags |= IMAGE_SCN_MEM_SHARED;
4690 /* Section Alignment */
4691 case '0': /* align to byte boundary */
4692 flags |= IMAGE_SCN_ALIGN_1BYTES;
4695 case '1': /* align to halfword boundary */
4696 flags |= IMAGE_SCN_ALIGN_2BYTES;
4699 case '2': /* align to word boundary */
4700 flags |= IMAGE_SCN_ALIGN_4BYTES;
4703 case '3': /* align to doubleword boundary */
4704 flags |= IMAGE_SCN_ALIGN_8BYTES;
4707 case '4': /* align to quadword boundary */
4708 flags |= IMAGE_SCN_ALIGN_16BYTES;
4711 case '5': /* align to 32 byte boundary */
4712 flags |= IMAGE_SCN_ALIGN_32BYTES;
4715 case '6': /* align to 64 byte boundary */
4716 flags |= IMAGE_SCN_ALIGN_64BYTES;
4721 as_bad (_("unknown section attribute '%c'"),
4722 *input_line_pointer);
4725 ++input_line_pointer;
4727 if (*input_line_pointer == '"')
4728 ++input_line_pointer;
4732 sec = subseg_new (name, (subsegT) exp);
4734 ppc_set_current_section (sec);
4736 if (flags != SEC_NO_FLAGS)
4738 if (! bfd_set_section_flags (stdoutput, sec, flags))
4739 as_bad (_("error setting flags for \"%s\": %s"),
4740 bfd_section_name (stdoutput, sec),
4741 bfd_errmsg (bfd_get_error ()));
4744 bfd_set_section_alignment (stdoutput, sec, align);
4748 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4754 name = input_line_pointer;
4755 endc = get_symbol_end ();
4757 ext_sym = symbol_find_or_make (name);
4759 *input_line_pointer = endc;
4761 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4762 SF_SET_FUNCTION (ext_sym);
4763 SF_SET_PROCESS (ext_sym);
4764 coff_add_linesym (ext_sym);
4766 demand_empty_rest_of_line ();
4770 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4772 if (tocdata_section == 0)
4774 tocdata_section = subseg_new (".tocd", 0);
4775 /* FIXME: section flags won't work. */
4776 bfd_set_section_flags (stdoutput, tocdata_section,
4777 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4778 | SEC_READONLY | SEC_DATA));
4780 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4784 rdata_section = subseg_new (".tocd", 0);
4787 ppc_set_current_section (tocdata_section);
4789 demand_empty_rest_of_line ();
4792 /* Don't adjust TOC relocs to use the section symbol. */
4795 ppc_pe_fix_adjustable (fixS *fix)
4797 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4804 /* XCOFF specific symbol and file handling. */
4806 /* Canonicalize the symbol name. We use the to force the suffix, if
4807 any, to use square brackets, and to be in upper case. */
4810 ppc_canonicalize_symbol_name (char *name)
4814 if (ppc_stab_symbol)
4817 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4831 for (s++; *s != '\0' && *s != brac; s++)
4834 if (*s == '\0' || s[1] != '\0')
4835 as_bad (_("bad symbol suffix"));
4843 /* Set the class of a symbol based on the suffix, if any. This is
4844 called whenever a new symbol is created. */
4847 ppc_symbol_new_hook (symbolS *sym)
4849 struct ppc_tc_sy *tc;
4852 tc = symbol_get_tc (sym);
4856 tc->real_name = NULL;
4862 if (ppc_stab_symbol)
4865 s = strchr (S_GET_NAME (sym), '[');
4866 if (s == (const char *) NULL)
4868 /* There is no suffix. */
4877 if (strcmp (s, "BS]") == 0)
4881 if (strcmp (s, "DB]") == 0)
4883 else if (strcmp (s, "DS]") == 0)
4887 if (strcmp (s, "GL]") == 0)
4891 if (strcmp (s, "PR]") == 0)
4895 if (strcmp (s, "RO]") == 0)
4897 else if (strcmp (s, "RW]") == 0)
4901 if (strcmp (s, "SV]") == 0)
4905 if (strcmp (s, "TC]") == 0)
4907 else if (strcmp (s, "TI]") == 0)
4909 else if (strcmp (s, "TB]") == 0)
4911 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4912 tc->class = XMC_TC0;
4915 if (strcmp (s, "UA]") == 0)
4917 else if (strcmp (s, "UC]") == 0)
4921 if (strcmp (s, "XO]") == 0)
4926 if (tc->class == -1)
4927 as_bad (_("Unrecognized symbol suffix"));
4930 /* Set the class of a label based on where it is defined. This
4931 handles symbols without suffixes. Also, move the symbol so that it
4932 follows the csect symbol. */
4935 ppc_frob_label (symbolS *sym)
4937 if (ppc_current_csect != (symbolS *) NULL)
4939 if (symbol_get_tc (sym)->class == -1)
4940 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4942 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4943 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4944 &symbol_rootP, &symbol_lastP);
4945 symbol_get_tc (ppc_current_csect)->within = sym;
4949 dwarf2_emit_label (sym);
4953 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4954 seen. It tells ppc_adjust_symtab whether it needs to look through
4957 static bfd_boolean ppc_saw_abs;
4959 /* Change the name of a symbol just before writing it out. Set the
4960 real name if the .rename pseudo-op was used. Otherwise, remove any
4961 class suffix. Return 1 if the symbol should not be included in the
4965 ppc_frob_symbol (symbolS *sym)
4967 static symbolS *ppc_last_function;
4968 static symbolS *set_end;
4970 /* Discard symbols that should not be included in the output symbol
4972 if (! symbol_used_in_reloc_p (sym)
4973 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4974 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4975 && ! symbol_get_tc (sym)->output
4976 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4979 /* This one will disappear anyway. Don't make a csect sym for it. */
4980 if (sym == abs_section_sym)
4983 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4984 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4990 name = S_GET_NAME (sym);
4991 s = strchr (name, '[');
4992 if (s != (char *) NULL)
4998 snew = xmalloc (len + 1);
4999 memcpy (snew, name, len);
5002 S_SET_NAME (sym, snew);
5006 if (set_end != (symbolS *) NULL)
5008 SA_SET_SYM_ENDNDX (set_end, sym);
5012 if (SF_GET_FUNCTION (sym))
5014 if (ppc_last_function != (symbolS *) NULL)
5015 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5016 ppc_last_function = sym;
5017 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5019 resolve_symbol_value (symbol_get_tc (sym)->size);
5020 SA_SET_SYM_FSIZE (sym,
5021 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5024 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5025 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5027 if (ppc_last_function == (symbolS *) NULL)
5028 as_bad (_(".ef with no preceding .function"));
5031 set_end = ppc_last_function;
5032 ppc_last_function = NULL;
5034 /* We don't have a C_EFCN symbol, but we need to force the
5035 COFF backend to believe that it has seen one. */
5036 coff_last_function = NULL;
5040 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5041 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5042 && S_GET_STORAGE_CLASS (sym) != C_FILE
5043 && S_GET_STORAGE_CLASS (sym) != C_FCN
5044 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5045 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5046 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5047 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5048 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5049 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5050 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5052 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5053 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5056 union internal_auxent *a;
5058 /* Create a csect aux. */
5059 i = S_GET_NUMBER_AUXILIARY (sym);
5060 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5061 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5062 if (symbol_get_tc (sym)->class == XMC_TC0)
5064 /* This is the TOC table. */
5065 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5066 a->x_csect.x_scnlen.l = 0;
5067 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5069 else if (symbol_get_tc (sym)->subseg != 0)
5071 /* This is a csect symbol. x_scnlen is the size of the
5073 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5074 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5075 S_GET_SEGMENT (sym))
5076 - S_GET_VALUE (sym));
5079 resolve_symbol_value (symbol_get_tc (sym)->next);
5080 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5081 - S_GET_VALUE (sym));
5083 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5085 else if (S_GET_SEGMENT (sym) == bss_section)
5087 /* This is a common symbol. */
5088 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5089 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5090 if (S_IS_EXTERNAL (sym))
5091 symbol_get_tc (sym)->class = XMC_RW;
5093 symbol_get_tc (sym)->class = XMC_BS;
5095 else if (S_GET_SEGMENT (sym) == absolute_section)
5097 /* This is an absolute symbol. The csect will be created by
5098 ppc_adjust_symtab. */
5100 a->x_csect.x_smtyp = XTY_LD;
5101 if (symbol_get_tc (sym)->class == -1)
5102 symbol_get_tc (sym)->class = XMC_XO;
5104 else if (! S_IS_DEFINED (sym))
5106 /* This is an external symbol. */
5107 a->x_csect.x_scnlen.l = 0;
5108 a->x_csect.x_smtyp = XTY_ER;
5110 else if (symbol_get_tc (sym)->class == XMC_TC)
5114 /* This is a TOC definition. x_scnlen is the size of the
5116 next = symbol_next (sym);
5117 while (symbol_get_tc (next)->class == XMC_TC0)
5118 next = symbol_next (next);
5119 if (next == (symbolS *) NULL
5120 || symbol_get_tc (next)->class != XMC_TC)
5122 if (ppc_after_toc_frag == (fragS *) NULL)
5123 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5125 - S_GET_VALUE (sym));
5127 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5128 - S_GET_VALUE (sym));
5132 resolve_symbol_value (next);
5133 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5134 - S_GET_VALUE (sym));
5136 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5142 /* This is a normal symbol definition. x_scnlen is the
5143 symbol index of the containing csect. */
5144 if (S_GET_SEGMENT (sym) == text_section)
5145 csect = ppc_text_csects;
5146 else if (S_GET_SEGMENT (sym) == data_section)
5147 csect = ppc_data_csects;
5151 /* Skip the initial dummy symbol. */
5152 csect = symbol_get_tc (csect)->next;
5154 if (csect == (symbolS *) NULL)
5156 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5157 a->x_csect.x_scnlen.l = 0;
5161 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5163 resolve_symbol_value (symbol_get_tc (csect)->next);
5164 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5165 > S_GET_VALUE (sym))
5167 csect = symbol_get_tc (csect)->next;
5170 a->x_csect.x_scnlen.p =
5171 coffsymbol (symbol_get_bfdsym (csect))->native;
5172 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5175 a->x_csect.x_smtyp = XTY_LD;
5178 a->x_csect.x_parmhash = 0;
5179 a->x_csect.x_snhash = 0;
5180 if (symbol_get_tc (sym)->class == -1)
5181 a->x_csect.x_smclas = XMC_PR;
5183 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5184 a->x_csect.x_stab = 0;
5185 a->x_csect.x_snstab = 0;
5187 /* Don't let the COFF backend resort these symbols. */
5188 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5190 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5192 /* We want the value to be the symbol index of the referenced
5193 csect symbol. BFD will do that for us if we set the right
5195 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5196 combined_entry_type *c = coffsymbol (bsym)->native;
5198 S_SET_VALUE (sym, (valueT) (size_t) c);
5199 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5201 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5206 /* The value is the offset from the enclosing csect. */
5207 block = symbol_get_tc (sym)->within;
5208 csect = symbol_get_tc (block)->within;
5209 resolve_symbol_value (csect);
5210 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5212 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5213 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5215 /* We want the value to be a file offset into the line numbers.
5216 BFD will do that for us if we set the right flags. We have
5217 already set the value correctly. */
5218 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5224 /* Adjust the symbol table. This creates csect symbols for all
5225 absolute symbols. */
5228 ppc_adjust_symtab (void)
5235 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5239 union internal_auxent *a;
5241 if (S_GET_SEGMENT (sym) != absolute_section)
5244 csect = symbol_create (".abs[XO]", absolute_section,
5245 S_GET_VALUE (sym), &zero_address_frag);
5246 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5247 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5248 i = S_GET_NUMBER_AUXILIARY (csect);
5249 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5250 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5251 a->x_csect.x_scnlen.l = 0;
5252 a->x_csect.x_smtyp = XTY_SD;
5253 a->x_csect.x_parmhash = 0;
5254 a->x_csect.x_snhash = 0;
5255 a->x_csect.x_smclas = XMC_XO;
5256 a->x_csect.x_stab = 0;
5257 a->x_csect.x_snstab = 0;
5259 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5261 i = S_GET_NUMBER_AUXILIARY (sym);
5262 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5263 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5264 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5267 ppc_saw_abs = FALSE;
5270 /* Set the VMA for a section. This is called on all the sections in
5274 ppc_frob_section (asection *sec)
5276 static bfd_vma vma = 0;
5278 vma = md_section_align (sec, vma);
5279 bfd_set_section_vma (stdoutput, sec, vma);
5280 vma += bfd_section_size (stdoutput, sec);
5283 #endif /* OBJ_XCOFF */
5286 md_atof (int type, char *litp, int *sizep)
5288 return ieee_md_atof (type, litp, sizep, target_big_endian);
5291 /* Write a value out to the object file, using the appropriate
5295 md_number_to_chars (char *buf, valueT val, int n)
5297 if (target_big_endian)
5298 number_to_chars_bigendian (buf, val, n);
5300 number_to_chars_littleendian (buf, val, n);
5303 /* Align a section (I don't know why this is machine dependent). */
5306 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5311 int align = bfd_get_section_alignment (stdoutput, seg);
5313 return ((addr + (1 << align) - 1) & (-1 << align));
5317 /* We don't have any form of relaxing. */
5320 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5321 asection *seg ATTRIBUTE_UNUSED)
5327 /* Convert a machine dependent frag. We never generate these. */
5330 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5331 asection *sec ATTRIBUTE_UNUSED,
5332 fragS *fragp ATTRIBUTE_UNUSED)
5337 /* We have no need to default values of symbols. */
5340 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5345 /* Functions concerning relocs. */
5347 /* The location from which a PC relative jump should be calculated,
5348 given a PC relative reloc. */
5351 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5353 return fixp->fx_frag->fr_address + fixp->fx_where;
5358 /* This is called to see whether a fixup should be adjusted to use a
5359 section symbol. We take the opportunity to change a fixup against
5360 a symbol in the TOC subsegment into a reloc against the
5361 corresponding .tc symbol. */
5364 ppc_fix_adjustable (fixS *fix)
5366 valueT val = resolve_symbol_value (fix->fx_addsy);
5367 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5368 TC_SYMFIELD_TYPE *tc;
5370 if (symseg == absolute_section)
5373 if (ppc_toc_csect != (symbolS *) NULL
5374 && fix->fx_addsy != ppc_toc_csect
5375 && symseg == data_section
5376 && val >= ppc_toc_frag->fr_address
5377 && (ppc_after_toc_frag == (fragS *) NULL
5378 || val < ppc_after_toc_frag->fr_address))
5382 for (sy = symbol_next (ppc_toc_csect);
5383 sy != (symbolS *) NULL;
5384 sy = symbol_next (sy))
5386 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5388 if (sy_tc->class == XMC_TC0)
5390 if (sy_tc->class != XMC_TC)
5392 if (val == resolve_symbol_value (sy))
5395 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5400 as_bad_where (fix->fx_file, fix->fx_line,
5401 _("symbol in .toc does not match any .tc"));
5404 /* Possibly adjust the reloc to be against the csect. */
5405 tc = symbol_get_tc (fix->fx_addsy);
5407 && tc->class != XMC_TC0
5408 && tc->class != XMC_TC
5409 && symseg != bss_section
5410 /* Don't adjust if this is a reloc in the toc section. */
5411 && (symseg != data_section
5412 || ppc_toc_csect == NULL
5413 || val < ppc_toc_frag->fr_address
5414 || (ppc_after_toc_frag != NULL
5415 && val >= ppc_after_toc_frag->fr_address)))
5418 symbolS *next_csect;
5420 if (symseg == text_section)
5421 csect = ppc_text_csects;
5422 else if (symseg == data_section)
5423 csect = ppc_data_csects;
5427 /* Skip the initial dummy symbol. */
5428 csect = symbol_get_tc (csect)->next;
5430 if (csect != (symbolS *) NULL)
5432 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5433 && (symbol_get_frag (next_csect)->fr_address <= val))
5435 /* If the csect address equals the symbol value, then we
5436 have to look through the full symbol table to see
5437 whether this is the csect we want. Note that we will
5438 only get here if the csect has zero length. */
5439 if (symbol_get_frag (csect)->fr_address == val
5440 && S_GET_VALUE (csect) == val)
5444 for (scan = symbol_next (csect);
5446 scan = symbol_next (scan))
5448 if (symbol_get_tc (scan)->subseg != 0)
5450 if (scan == fix->fx_addsy)
5454 /* If we found the symbol before the next csect
5455 symbol, then this is the csect we want. */
5456 if (scan == fix->fx_addsy)
5463 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5464 fix->fx_addsy = csect;
5469 /* Adjust a reloc against a .lcomm symbol to be against the base
5471 if (symseg == bss_section
5472 && ! S_IS_EXTERNAL (fix->fx_addsy))
5474 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5476 fix->fx_offset += val - resolve_symbol_value (sy);
5483 /* A reloc from one csect to another must be kept. The assembler
5484 will, of course, keep relocs between sections, and it will keep
5485 absolute relocs, but we need to force it to keep PC relative relocs
5486 between two csects in the same section. */
5489 ppc_force_relocation (fixS *fix)
5491 /* At this point fix->fx_addsy should already have been converted to
5492 a csect symbol. If the csect does not include the fragment, then
5493 we need to force the relocation. */
5495 && fix->fx_addsy != NULL
5496 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5497 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5498 > fix->fx_frag->fr_address)
5499 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5500 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5501 <= fix->fx_frag->fr_address))))
5504 return generic_force_reloc (fix);
5507 #endif /* OBJ_XCOFF */
5510 /* If this function returns non-zero, it guarantees that a relocation
5511 will be emitted for a fixup. */
5514 ppc_force_relocation (fixS *fix)
5516 /* Branch prediction relocations must force a relocation, as must
5517 the vtable description relocs. */
5518 switch (fix->fx_r_type)
5520 case BFD_RELOC_PPC_B16_BRTAKEN:
5521 case BFD_RELOC_PPC_B16_BRNTAKEN:
5522 case BFD_RELOC_PPC_BA16_BRTAKEN:
5523 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5524 case BFD_RELOC_24_PLT_PCREL:
5525 case BFD_RELOC_PPC64_TOC:
5531 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5532 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5535 return generic_force_reloc (fix);
5539 ppc_fix_adjustable (fixS *fix)
5541 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5542 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5543 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5544 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5545 && fix->fx_r_type != BFD_RELOC_GPREL16
5546 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5547 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5548 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5549 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5553 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5554 rs_align_code frag. */
5557 ppc_handle_align (struct frag *fragP)
5559 valueT count = (fragP->fr_next->fr_address
5560 - (fragP->fr_address + fragP->fr_fix));
5562 if (count != 0 && (count & 3) == 0)
5564 char *dest = fragP->fr_literal + fragP->fr_fix;
5567 md_number_to_chars (dest, 0x60000000, 4);
5569 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5571 /* For power6, we want the last nop to be a group terminating
5572 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5573 immediately after this one, with its address set to the last
5574 nop location. This will automatically reduce the number of
5575 nops in the current frag by one. */
5578 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5580 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5581 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5582 group_nop->fr_fix = 0;
5583 group_nop->fr_offset = 1;
5584 group_nop->fr_type = rs_fill;
5585 fragP->fr_next = group_nop;
5586 dest = group_nop->fr_literal;
5589 md_number_to_chars (dest, 0x60210000, 4);
5594 /* Apply a fixup to the object code. This is called for all the
5595 fixups we generated by the call to fix_new_exp, above. In the call
5596 above we used a reloc code which was the largest legal reloc code
5597 plus the operand index. Here we undo that to recover the operand
5598 index. At this point all symbol values should be fully resolved,
5599 and we attempt to completely resolve the reloc. If we can not do
5600 that, we determine the correct reloc code and put it back in the
5604 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5606 valueT value = * valP;
5609 if (fixP->fx_addsy != NULL)
5611 /* Hack around bfd_install_relocation brain damage. */
5613 value += fixP->fx_frag->fr_address + fixP->fx_where;
5618 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5619 the symbol values. If we are doing this relocation the code in
5620 write.c is going to call bfd_install_relocation, which is also
5621 going to use the symbol value. That means that if the reloc is
5622 fully resolved we want to use *valP since bfd_install_relocation is
5624 However, if the reloc is not fully resolved we do not want to use
5625 *valP, and must use fx_offset instead. However, if the reloc
5626 is PC relative, we do want to use *valP since it includes the
5627 result of md_pcrel_from. This is confusing. */
5628 if (fixP->fx_addsy == (symbolS *) NULL)
5631 else if (fixP->fx_pcrel)
5635 value = fixP->fx_offset;
5638 if (fixP->fx_subsy != (symbolS *) NULL)
5640 /* We can't actually support subtracting a symbol. */
5641 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5644 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5647 const struct powerpc_operand *operand;
5651 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5653 operand = &powerpc_operands[opindex];
5656 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5657 does not generate a reloc. It uses the offset of `sym' within its
5658 csect. Other usages, such as `.long sym', generate relocs. This
5659 is the documented behaviour of non-TOC symbols. */
5660 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5661 && (operand->bitm & 0xfff0) == 0xfff0
5662 && operand->shift == 0
5663 && (operand->insert == NULL || ppc_obj64)
5664 && fixP->fx_addsy != NULL
5665 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5666 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5667 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5668 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5670 value = fixP->fx_offset;
5675 /* Fetch the instruction, insert the fully resolved operand
5676 value, and stuff the instruction back again. */
5677 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5678 if (target_big_endian)
5679 insn = bfd_getb32 ((unsigned char *) where);
5681 insn = bfd_getl32 ((unsigned char *) where);
5682 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5683 fixP->tc_fix_data.ppc_cpu,
5684 fixP->fx_file, fixP->fx_line);
5685 if (target_big_endian)
5686 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5688 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5691 /* Nothing else to do here. */
5694 assert (fixP->fx_addsy != NULL);
5696 /* Determine a BFD reloc value based on the operand information.
5697 We are only prepared to turn a few of the operands into
5699 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5700 && operand->bitm == 0x3fffffc
5701 && operand->shift == 0)
5702 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5703 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5704 && operand->bitm == 0xfffc
5705 && operand->shift == 0)
5707 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5710 if (target_big_endian)
5711 fixP->fx_where += 2;
5714 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5715 && operand->bitm == 0x3fffffc
5716 && operand->shift == 0)
5717 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5718 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5719 && operand->bitm == 0xfffc
5720 && operand->shift == 0)
5722 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5725 if (target_big_endian)
5726 fixP->fx_where += 2;
5729 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5730 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5731 && (operand->bitm & 0xfff0) == 0xfff0
5732 && operand->shift == 0)
5734 if (ppc_is_toc_sym (fixP->fx_addsy))
5736 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5739 && (operand->flags & PPC_OPERAND_DS) != 0)
5740 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5745 fixP->fx_r_type = BFD_RELOC_16;
5748 && (operand->flags & PPC_OPERAND_DS) != 0)
5749 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5753 if (target_big_endian)
5754 fixP->fx_where += 2;
5756 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5762 /* Use expr_symbol_where to see if this is an expression
5764 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5765 as_bad_where (fixP->fx_file, fixP->fx_line,
5766 _("unresolved expression that must be resolved"));
5768 as_bad_where (fixP->fx_file, fixP->fx_line,
5769 _("unsupported relocation against %s"),
5770 S_GET_NAME (fixP->fx_addsy));
5778 ppc_elf_validate_fix (fixP, seg);
5780 switch (fixP->fx_r_type)
5782 case BFD_RELOC_CTOR:
5789 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5793 case BFD_RELOC_32_PCREL:
5794 case BFD_RELOC_PPC_EMB_NADDR32:
5795 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5802 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5805 case BFD_RELOC_64_PCREL:
5806 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5810 case BFD_RELOC_GPREL16:
5811 case BFD_RELOC_16_GOT_PCREL:
5812 case BFD_RELOC_16_GOTOFF:
5813 case BFD_RELOC_LO16_GOTOFF:
5814 case BFD_RELOC_HI16_GOTOFF:
5815 case BFD_RELOC_HI16_S_GOTOFF:
5816 case BFD_RELOC_16_BASEREL:
5817 case BFD_RELOC_LO16_BASEREL:
5818 case BFD_RELOC_HI16_BASEREL:
5819 case BFD_RELOC_HI16_S_BASEREL:
5820 case BFD_RELOC_PPC_EMB_NADDR16:
5821 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5822 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5823 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5824 case BFD_RELOC_PPC_EMB_SDAI16:
5825 case BFD_RELOC_PPC_EMB_SDA2REL:
5826 case BFD_RELOC_PPC_EMB_SDA2I16:
5827 case BFD_RELOC_PPC_EMB_RELSEC16:
5828 case BFD_RELOC_PPC_EMB_RELST_LO:
5829 case BFD_RELOC_PPC_EMB_RELST_HI:
5830 case BFD_RELOC_PPC_EMB_RELST_HA:
5831 case BFD_RELOC_PPC_EMB_RELSDA:
5832 case BFD_RELOC_PPC_TOC16:
5834 case BFD_RELOC_PPC64_TOC16_LO:
5835 case BFD_RELOC_PPC64_TOC16_HI:
5836 case BFD_RELOC_PPC64_TOC16_HA:
5840 if (fixP->fx_addsy != NULL)
5841 as_bad_where (fixP->fx_file, fixP->fx_line,
5842 _("cannot emit PC relative %s relocation against %s"),
5843 bfd_get_reloc_code_name (fixP->fx_r_type),
5844 S_GET_NAME (fixP->fx_addsy));
5846 as_bad_where (fixP->fx_file, fixP->fx_line,
5847 _("cannot emit PC relative %s relocation"),
5848 bfd_get_reloc_code_name (fixP->fx_r_type));
5851 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5857 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5860 case BFD_RELOC_16_PCREL:
5861 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5865 case BFD_RELOC_LO16:
5867 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5870 case BFD_RELOC_LO16_PCREL:
5871 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5875 /* This case happens when you write, for example,
5877 where L1 and L2 are defined later. */
5878 case BFD_RELOC_HI16:
5880 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5883 case BFD_RELOC_HI16_PCREL:
5884 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5888 case BFD_RELOC_HI16_S:
5890 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5893 case BFD_RELOC_HI16_S_PCREL:
5894 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5899 case BFD_RELOC_PPC64_HIGHER:
5902 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5903 PPC_HIGHER (value), 2);
5906 case BFD_RELOC_PPC64_HIGHER_S:
5909 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5910 PPC_HIGHERA (value), 2);
5913 case BFD_RELOC_PPC64_HIGHEST:
5916 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5917 PPC_HIGHEST (value), 2);
5920 case BFD_RELOC_PPC64_HIGHEST_S:
5923 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5924 PPC_HIGHESTA (value), 2);
5927 case BFD_RELOC_PPC64_ADDR16_DS:
5928 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5929 case BFD_RELOC_PPC64_GOT16_DS:
5930 case BFD_RELOC_PPC64_GOT16_LO_DS:
5931 case BFD_RELOC_PPC64_PLT16_LO_DS:
5932 case BFD_RELOC_PPC64_SECTOFF_DS:
5933 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5934 case BFD_RELOC_PPC64_TOC16_DS:
5935 case BFD_RELOC_PPC64_TOC16_LO_DS:
5936 case BFD_RELOC_PPC64_PLTGOT16_DS:
5937 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5941 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5942 unsigned long val, mask;
5944 if (target_big_endian)
5945 val = bfd_getb32 (where - 2);
5947 val = bfd_getl32 (where);
5949 /* lq insns reserve the four lsbs. */
5950 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5951 && (val & (0x3f << 26)) == (56u << 26))
5953 val |= value & mask;
5954 if (target_big_endian)
5955 bfd_putb16 ((bfd_vma) val, where);
5957 bfd_putl16 ((bfd_vma) val, where);
5961 case BFD_RELOC_PPC_B16_BRTAKEN:
5962 case BFD_RELOC_PPC_B16_BRNTAKEN:
5963 case BFD_RELOC_PPC_BA16_BRTAKEN:
5964 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5967 case BFD_RELOC_PPC_TLS:
5970 case BFD_RELOC_PPC_DTPMOD:
5971 case BFD_RELOC_PPC_TPREL16:
5972 case BFD_RELOC_PPC_TPREL16_LO:
5973 case BFD_RELOC_PPC_TPREL16_HI:
5974 case BFD_RELOC_PPC_TPREL16_HA:
5975 case BFD_RELOC_PPC_TPREL:
5976 case BFD_RELOC_PPC_DTPREL16:
5977 case BFD_RELOC_PPC_DTPREL16_LO:
5978 case BFD_RELOC_PPC_DTPREL16_HI:
5979 case BFD_RELOC_PPC_DTPREL16_HA:
5980 case BFD_RELOC_PPC_DTPREL:
5981 case BFD_RELOC_PPC_GOT_TLSGD16:
5982 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5983 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5984 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5985 case BFD_RELOC_PPC_GOT_TLSLD16:
5986 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5987 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5988 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5989 case BFD_RELOC_PPC_GOT_TPREL16:
5990 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5991 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5992 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5993 case BFD_RELOC_PPC_GOT_DTPREL16:
5994 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5995 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5996 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5997 case BFD_RELOC_PPC64_TPREL16_DS:
5998 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5999 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6000 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6001 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6002 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6003 case BFD_RELOC_PPC64_DTPREL16_DS:
6004 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6005 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6006 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6007 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6008 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6009 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6012 /* Because SDA21 modifies the register field, the size is set to 4
6013 bytes, rather than 2, so offset it here appropriately. */
6014 case BFD_RELOC_PPC_EMB_SDA21:
6018 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6019 + ((target_big_endian) ? 2 : 0),
6026 /* This can occur if there is a bug in the input assembler, eg:
6027 ".byte <undefined_symbol> - ." */
6029 as_bad (_("Unable to handle reference to symbol %s"),
6030 S_GET_NAME (fixP->fx_addsy));
6032 as_bad (_("Unable to resolve expression"));
6036 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6040 case BFD_RELOC_24_PLT_PCREL:
6041 case BFD_RELOC_PPC_LOCAL24PC:
6042 if (!fixP->fx_pcrel && !fixP->fx_done)
6050 /* Fetch the instruction, insert the fully resolved operand
6051 value, and stuff the instruction back again. */
6052 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6053 if (target_big_endian)
6054 insn = bfd_getb32 ((unsigned char *) where);
6056 insn = bfd_getl32 ((unsigned char *) where);
6057 if ((value & 3) != 0)
6058 as_bad_where (fixP->fx_file, fixP->fx_line,
6059 _("must branch to an address a multiple of 4"));
6060 if ((offsetT) value < -0x40000000
6061 || (offsetT) value >= 0x40000000)
6062 as_bad_where (fixP->fx_file, fixP->fx_line,
6063 _("@local or @plt branch destination is too far away, %ld bytes"),
6065 insn = insn | (value & 0x03fffffc);
6066 if (target_big_endian)
6067 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6069 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6073 case BFD_RELOC_VTABLE_INHERIT:
6076 && !S_IS_DEFINED (fixP->fx_addsy)
6077 && !S_IS_WEAK (fixP->fx_addsy))
6078 S_SET_WEAK (fixP->fx_addsy);
6081 case BFD_RELOC_VTABLE_ENTRY:
6086 /* Generated by reference to `sym@tocbase'. The sym is
6087 ignored by the linker. */
6088 case BFD_RELOC_PPC64_TOC:
6094 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6101 fixP->fx_addnumber = value;
6103 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6104 from the section contents. If we are going to be emitting a reloc
6105 then the section contents are immaterial, so don't warn if they
6106 happen to overflow. Leave such warnings to ld. */
6108 fixP->fx_no_overflow = 1;
6110 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6111 fixP->fx_addnumber = 0;
6115 fixP->fx_addnumber = 0;
6117 /* We want to use the offset within the toc, not the actual VMA
6119 fixP->fx_addnumber =
6120 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6121 - S_GET_VALUE (ppc_toc_csect);
6127 /* Generate a reloc for a fixup. */
6130 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6134 reloc = (arelent *) xmalloc (sizeof (arelent));
6136 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6137 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6138 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6139 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6140 if (reloc->howto == (reloc_howto_type *) NULL)
6142 as_bad_where (fixp->fx_file, fixp->fx_line,
6143 _("reloc %d not supported by object file format"),
6144 (int) fixp->fx_r_type);
6147 reloc->addend = fixp->fx_addnumber;
6153 ppc_cfi_frame_initial_instructions (void)
6155 cfi_add_CFA_def_cfa (1, 0);
6159 tc_ppc_regname_to_dw2regnum (char *regname)
6161 unsigned int regnum = -1;
6165 static struct { char *name; int dw2regnum; } regnames[] =
6167 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6168 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6169 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6170 { "spe_acc", 111 }, { "spefscr", 112 }
6173 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6174 if (strcmp (regnames[i].name, regname) == 0)
6175 return regnames[i].dw2regnum;
6177 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6179 p = regname + 1 + (regname[1] == '.');
6180 regnum = strtoul (p, &q, 10);
6181 if (p == q || *q || regnum >= 32)
6183 if (regname[0] == 'f')
6185 else if (regname[0] == 'v')
6188 else if (regname[0] == 'c' && regname[1] == 'r')
6190 p = regname + 2 + (regname[2] == '.');
6191 if (p[0] < '0' || p[0] > '7' || p[1])
6193 regnum = p[0] - '0' + 68;