1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2, 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 bfd_boolean register_name PARAMS ((expressionS *));
88 static void ppc_set_cpu PARAMS ((void));
89 static unsigned long ppc_insert_operand
90 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
91 offsetT val, char *file, unsigned int line));
92 static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
93 static void ppc_byte PARAMS ((int));
95 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
96 static int ppc_is_toc_sym PARAMS ((symbolS *sym));
97 static void ppc_tc PARAMS ((int));
98 static void ppc_machine PARAMS ((int));
102 static void ppc_comm PARAMS ((int));
103 static void ppc_bb PARAMS ((int));
104 static void ppc_bc PARAMS ((int));
105 static void ppc_bf PARAMS ((int));
106 static void ppc_biei PARAMS ((int));
107 static void ppc_bs PARAMS ((int));
108 static void ppc_eb PARAMS ((int));
109 static void ppc_ec PARAMS ((int));
110 static void ppc_ef PARAMS ((int));
111 static void ppc_es PARAMS ((int));
112 static void ppc_csect PARAMS ((int));
113 static void ppc_change_csect PARAMS ((symbolS *, offsetT));
114 static void ppc_function PARAMS ((int));
115 static void ppc_extern PARAMS ((int));
116 static void ppc_lglobl PARAMS ((int));
117 static void ppc_section PARAMS ((int));
118 static void ppc_named_section PARAMS ((int));
119 static void ppc_stabx PARAMS ((int));
120 static void ppc_rename PARAMS ((int));
121 static void ppc_toc PARAMS ((int));
122 static void ppc_xcoff_cons PARAMS ((int));
123 static void ppc_vbyte PARAMS ((int));
127 static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
128 static void ppc_elf_cons PARAMS ((int));
129 static void ppc_elf_rdata PARAMS ((int));
130 static void ppc_elf_lcomm PARAMS ((int));
131 static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
132 static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version));
136 static void ppc_set_current_section PARAMS ((segT));
137 static void ppc_previous PARAMS ((int));
138 static void ppc_pdata PARAMS ((int));
139 static void ppc_ydata PARAMS ((int));
140 static void ppc_reldata PARAMS ((int));
141 static void ppc_rdata PARAMS ((int));
142 static void ppc_ualong PARAMS ((int));
143 static void ppc_znop PARAMS ((int));
144 static void ppc_pe_comm PARAMS ((int));
145 static void ppc_pe_section PARAMS ((int));
146 static void ppc_pe_function PARAMS ((int));
147 static void ppc_pe_tocd PARAMS ((int));
150 /* Generic assembler global variables which must be defined by all
154 /* This string holds the chars that always start a comment. If the
155 pre-processor is disabled, these aren't very useful. The macro
156 tc_comment_chars points to this. We use this, rather than the
157 usual comment_chars, so that we can switch for Solaris conventions. */
158 static const char ppc_solaris_comment_chars[] = "#!";
159 static const char ppc_eabi_comment_chars[] = "#";
161 #ifdef TARGET_SOLARIS_COMMENT
162 const char *ppc_comment_chars = ppc_solaris_comment_chars;
164 const char *ppc_comment_chars = ppc_eabi_comment_chars;
167 const char comment_chars[] = "#";
170 /* Characters which start a comment at the beginning of a line. */
171 const char line_comment_chars[] = "#";
173 /* Characters which may be used to separate multiple commands on a
175 const char line_separator_chars[] = ";";
177 /* Characters which are used to indicate an exponent in a floating
179 const char EXP_CHARS[] = "eE";
181 /* Characters which mean that a number is a floating point constant,
183 const char FLT_CHARS[] = "dD";
185 /* Anything that can start an operand needs to be mentioned here,
186 to stop the input scrubber eating whitespace. */
187 const char ppc_symbol_chars[] = "%[";
189 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
190 int ppc_cie_data_alignment;
192 /* The target specific pseudo-ops which we support. */
194 const pseudo_typeS md_pseudo_table[] =
196 /* Pseudo-ops which must be overridden. */
197 { "byte", ppc_byte, 0 },
200 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
201 legitimately belong in the obj-*.c file. However, XCOFF is based
202 on COFF, and is only implemented for the RS/6000. We just use
203 obj-coff.c, and add what we need here. */
204 { "comm", ppc_comm, 0 },
205 { "lcomm", ppc_comm, 1 },
209 { "bi", ppc_biei, 0 },
211 { "csect", ppc_csect, 0 },
212 { "data", ppc_section, 'd' },
216 { "ei", ppc_biei, 1 },
218 { "extern", ppc_extern, 0 },
219 { "function", ppc_function, 0 },
220 { "lglobl", ppc_lglobl, 0 },
221 { "rename", ppc_rename, 0 },
222 { "section", ppc_named_section, 0 },
223 { "stabx", ppc_stabx, 0 },
224 { "text", ppc_section, 't' },
225 { "toc", ppc_toc, 0 },
226 { "long", ppc_xcoff_cons, 2 },
227 { "llong", ppc_xcoff_cons, 3 },
228 { "word", ppc_xcoff_cons, 1 },
229 { "short", ppc_xcoff_cons, 1 },
230 { "vbyte", ppc_vbyte, 0 },
234 { "llong", ppc_elf_cons, 8 },
235 { "quad", ppc_elf_cons, 8 },
236 { "long", ppc_elf_cons, 4 },
237 { "word", ppc_elf_cons, 2 },
238 { "short", ppc_elf_cons, 2 },
239 { "rdata", ppc_elf_rdata, 0 },
240 { "rodata", ppc_elf_rdata, 0 },
241 { "lcomm", ppc_elf_lcomm, 0 },
245 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
246 { "previous", ppc_previous, 0 },
247 { "pdata", ppc_pdata, 0 },
248 { "ydata", ppc_ydata, 0 },
249 { "reldata", ppc_reldata, 0 },
250 { "rdata", ppc_rdata, 0 },
251 { "ualong", ppc_ualong, 0 },
252 { "znop", ppc_znop, 0 },
253 { "comm", ppc_pe_comm, 0 },
254 { "lcomm", ppc_pe_comm, 1 },
255 { "section", ppc_pe_section, 0 },
256 { "function", ppc_pe_function,0 },
257 { "tocd", ppc_pe_tocd, 0 },
260 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
262 { "machine", ppc_machine, 0 },
269 /* Predefined register names if -mregnames (or default for Windows NT).
270 In general, there are lots of them, in an attempt to be compatible
271 with a number of other Windows NT assemblers. */
273 /* Structure to hold information about predefined registers. */
280 /* List of registers that are pre-defined:
282 Each general register has predefined names of the form:
283 1. r<reg_num> which has the value <reg_num>.
284 2. r.<reg_num> which has the value <reg_num>.
286 Each floating point register has predefined names of the form:
287 1. f<reg_num> which has the value <reg_num>.
288 2. f.<reg_num> which has the value <reg_num>.
290 Each vector unit register has predefined names of the form:
291 1. v<reg_num> which has the value <reg_num>.
292 2. v.<reg_num> which has the value <reg_num>.
294 Each condition register has predefined names of the form:
295 1. cr<reg_num> which has the value <reg_num>.
296 2. cr.<reg_num> which has the value <reg_num>.
298 There are individual registers as well:
299 sp or r.sp has the value 1
300 rtoc or r.toc has the value 2
301 fpscr has the value 0
307 dsisr has the value 18
309 sdr1 has the value 25
310 srr0 has the value 26
311 srr1 has the value 27
313 The table is sorted. Suitable for searching by a binary search. */
315 static const struct pd_reg pre_defined_registers[] =
317 { "cr.0", 0 }, /* Condition Registers */
337 { "dar", 19 }, /* Data Access Register */
338 { "dec", 22 }, /* Decrementer */
339 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
341 { "f.0", 0 }, /* Floating point registers */
409 { "lr", 8 }, /* Link Register */
413 { "r.0", 0 }, /* General Purpose Registers */
446 { "r.sp", 1 }, /* Stack Pointer */
448 { "r.toc", 2 }, /* Pointer to the table of contents */
450 { "r0", 0 }, /* More general purpose registers */
483 { "rtoc", 2 }, /* Table of contents */
485 { "sdr1", 25 }, /* Storage Description Register 1 */
489 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
490 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
492 { "v.0", 0 }, /* Vector registers */
562 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
564 /* Given NAME, find the register number associated with that name, return
565 the integer value associated with the given name or -1 on failure. */
567 static int reg_name_search
568 PARAMS ((const struct pd_reg *, int, const char * name));
571 reg_name_search (regs, regcount, name)
572 const struct pd_reg *regs;
576 int middle, low, high;
584 middle = (low + high) / 2;
585 cmp = strcasecmp (name, regs[middle].name);
591 return regs[middle].value;
599 * Summary of register_name.
601 * in: Input_line_pointer points to 1st char of operand.
603 * out: A expressionS.
604 * The operand may have been a register: in this case, X_op == O_register,
605 * X_add_number is set to the register number, and truth is returned.
606 * Input_line_pointer->(next non-blank) char after operand, or is in its
611 register_name (expressionP)
612 expressionS *expressionP;
619 /* Find the spelling of the operand. */
620 start = name = input_line_pointer;
621 if (name[0] == '%' && ISALPHA (name[1]))
622 name = ++input_line_pointer;
624 else if (!reg_names_p || !ISALPHA (name[0]))
627 c = get_symbol_end ();
628 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
630 /* Put back the delimiting char. */
631 *input_line_pointer = c;
633 /* Look to see if it's in the register table. */
636 expressionP->X_op = O_register;
637 expressionP->X_add_number = reg_number;
639 /* Make the rest nice. */
640 expressionP->X_add_symbol = NULL;
641 expressionP->X_op_symbol = NULL;
645 /* Reset the line as if we had not done anything. */
646 input_line_pointer = start;
650 /* This function is called for each symbol seen in an expression. It
651 handles the special parsing which PowerPC assemblers are supposed
652 to use for condition codes. */
654 /* Whether to do the special parsing. */
655 static bfd_boolean cr_operand;
657 /* Names to recognize in a condition code. This table is sorted. */
658 static const struct pd_reg cr_names[] =
675 /* Parsing function. This returns non-zero if it recognized an
679 ppc_parse_name (name, expr)
688 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
693 expr->X_op = O_constant;
694 expr->X_add_number = val;
699 /* Local variables. */
701 /* The type of processor we are assembling for. This is one or more
702 of the PPC_OPCODE flags defined in opcode/ppc.h. */
703 static unsigned long ppc_cpu = 0;
705 /* Whether to target xcoff64/elf64. */
706 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
708 /* Opcode hash table. */
709 static struct hash_control *ppc_hash;
711 /* Macro hash table. */
712 static struct hash_control *ppc_macro_hash;
715 /* What type of shared library support to use. */
716 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
718 /* Flags to set in the elf header. */
719 static flagword ppc_flags = 0;
721 /* Whether this is Solaris or not. */
722 #ifdef TARGET_SOLARIS_COMMENT
723 #define SOLARIS_P TRUE
725 #define SOLARIS_P FALSE
728 static bfd_boolean msolaris = SOLARIS_P;
733 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
734 using a bunch of different sections. These assembler sections,
735 however, are all encompassed within the .text or .data sections of
736 the final output file. We handle this by using different
737 subsegments within these main segments. */
739 /* Next subsegment to allocate within the .text segment. */
740 static subsegT ppc_text_subsegment = 2;
742 /* Linked list of csects in the text section. */
743 static symbolS *ppc_text_csects;
745 /* Next subsegment to allocate within the .data segment. */
746 static subsegT ppc_data_subsegment = 2;
748 /* Linked list of csects in the data section. */
749 static symbolS *ppc_data_csects;
751 /* The current csect. */
752 static symbolS *ppc_current_csect;
754 /* The RS/6000 assembler uses a TOC which holds addresses of functions
755 and variables. Symbols are put in the TOC with the .tc pseudo-op.
756 A special relocation is used when accessing TOC entries. We handle
757 the TOC as a subsegment within the .data segment. We set it up if
758 we see a .toc pseudo-op, and save the csect symbol here. */
759 static symbolS *ppc_toc_csect;
761 /* The first frag in the TOC subsegment. */
762 static fragS *ppc_toc_frag;
764 /* The first frag in the first subsegment after the TOC in the .data
765 segment. NULL if there are no subsegments after the TOC. */
766 static fragS *ppc_after_toc_frag;
768 /* The current static block. */
769 static symbolS *ppc_current_block;
771 /* The COFF debugging section; set by md_begin. This is not the
772 .debug section, but is instead the secret BFD section which will
773 cause BFD to set the section number of a symbol to N_DEBUG. */
774 static asection *ppc_coff_debug_section;
776 #endif /* OBJ_XCOFF */
780 /* Various sections that we need for PE coff support. */
781 static segT ydata_section;
782 static segT pdata_section;
783 static segT reldata_section;
784 static segT rdata_section;
785 static segT tocdata_section;
787 /* The current section and the previous section. See ppc_previous. */
788 static segT ppc_previous_section;
789 static segT ppc_current_section;
794 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
795 #define PPC_APUINFO_ISEL 0x40
796 #define PPC_APUINFO_PMR 0x41
797 #define PPC_APUINFO_RFMCI 0x42
798 #define PPC_APUINFO_CACHELCK 0x43
799 #define PPC_APUINFO_SPE 0x100
800 #define PPC_APUINFO_EFS 0x101
801 #define PPC_APUINFO_BRLOCK 0x102
804 * We keep a list of APUinfo
806 unsigned long *ppc_apuinfo_list;
807 unsigned int ppc_apuinfo_num;
808 unsigned int ppc_apuinfo_num_alloc;
812 const char *const md_shortopts = "b:l:usm:K:VQ:";
814 const char *const md_shortopts = "um:";
816 const struct option md_longopts[] = {
817 {NULL, no_argument, NULL, 0}
819 const size_t md_longopts_size = sizeof (md_longopts);
822 /* Handle -m options that set cpu type, and .machine arg. */
825 parse_cpu (const char *arg)
827 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
829 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
830 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
831 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
832 else if (strcmp (arg, "pwr") == 0)
833 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
834 /* -m601 means to assemble for the PowerPC 601, which includes
835 instructions that are holdovers from the Power. */
836 else if (strcmp (arg, "601") == 0)
837 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
838 | PPC_OPCODE_601 | PPC_OPCODE_32);
839 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
841 else if (strcmp (arg, "ppc") == 0
842 || strcmp (arg, "ppc32") == 0
843 || strcmp (arg, "603") == 0
844 || strcmp (arg, "604") == 0)
845 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
846 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
847 else if (strcmp (arg, "403") == 0
848 || strcmp (arg, "405") == 0)
849 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
850 | PPC_OPCODE_403 | PPC_OPCODE_32);
851 else if (strcmp (arg, "440") == 0)
852 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
853 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
854 else if (strcmp (arg, "7400") == 0
855 || strcmp (arg, "7410") == 0
856 || strcmp (arg, "7450") == 0
857 || strcmp (arg, "7455") == 0)
858 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
859 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
860 else if (strcmp (arg, "e300") == 0)
861 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
863 else if (strcmp (arg, "altivec") == 0)
866 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
868 ppc_cpu |= PPC_OPCODE_ALTIVEC;
870 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
872 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
873 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
874 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
877 else if (strcmp (arg, "spe") == 0)
880 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
882 ppc_cpu |= PPC_OPCODE_SPE;
884 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
886 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
888 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
890 else if (strcmp (arg, "ppc64bridge") == 0)
892 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
893 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
895 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
896 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
898 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
900 /* -mbooke64 means enable 64-bit BookE support. */
901 else if (strcmp (arg, "booke64") == 0)
903 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
904 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
906 else if (strcmp (arg, "power4") == 0)
908 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
909 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
911 else if (strcmp (arg, "power5") == 0)
913 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
914 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
915 | PPC_OPCODE_POWER5);
917 else if (strcmp (arg, "power6") == 0)
919 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
920 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
921 | PPC_OPCODE_POWER5 | PPC_OPCODE_POWER6);
923 else if (strcmp (arg, "cell") == 0)
925 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
926 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
929 /* -mcom means assemble for the common intersection between Power
930 and PowerPC. At present, we just allow the union, rather
931 than the intersection. */
932 else if (strcmp (arg, "com") == 0)
933 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
934 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
935 else if (strcmp (arg, "any") == 0)
936 ppc_cpu |= PPC_OPCODE_ANY;
944 md_parse_option (c, arg)
951 /* -u means that any undefined symbols should be treated as
952 external, which is the default for gas anyhow. */
957 /* Solaris as takes -le (presumably for little endian). For completeness
958 sake, recognize -be also. */
959 if (strcmp (arg, "e") == 0)
961 target_big_endian = 0;
962 set_target_endian = 1;
970 if (strcmp (arg, "e") == 0)
972 target_big_endian = 1;
973 set_target_endian = 1;
981 /* Recognize -K PIC. */
982 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
985 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
993 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
995 if (strcmp (arg, "64") == 0)
1000 as_fatal (_("%s unsupported"), "-a64");
1003 else if (strcmp (arg, "32") == 0)
1010 if (parse_cpu (arg))
1013 else if (strcmp (arg, "regnames") == 0)
1016 else if (strcmp (arg, "no-regnames") == 0)
1017 reg_names_p = FALSE;
1020 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1021 that require relocation. */
1022 else if (strcmp (arg, "relocatable") == 0)
1024 shlib = SHLIB_MRELOCATABLE;
1025 ppc_flags |= EF_PPC_RELOCATABLE;
1028 else if (strcmp (arg, "relocatable-lib") == 0)
1030 shlib = SHLIB_MRELOCATABLE;
1031 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1034 /* -memb, set embedded bit. */
1035 else if (strcmp (arg, "emb") == 0)
1036 ppc_flags |= EF_PPC_EMB;
1038 /* -mlittle/-mbig set the endianess. */
1039 else if (strcmp (arg, "little") == 0
1040 || strcmp (arg, "little-endian") == 0)
1042 target_big_endian = 0;
1043 set_target_endian = 1;
1046 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1048 target_big_endian = 1;
1049 set_target_endian = 1;
1052 else if (strcmp (arg, "solaris") == 0)
1055 ppc_comment_chars = ppc_solaris_comment_chars;
1058 else if (strcmp (arg, "no-solaris") == 0)
1061 ppc_comment_chars = ppc_eabi_comment_chars;
1066 as_bad (_("invalid switch -m%s"), arg);
1072 /* -V: SVR4 argument to print version ID. */
1074 print_version_id ();
1077 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1078 should be emitted or not. FIXME: Not implemented. */
1082 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1083 rather than .stabs.excl, which is ignored by the linker.
1084 FIXME: Not implemented. */
1100 md_show_usage (stream)
1103 fprintf (stream, _("\
1105 -a32 generate ELF32/XCOFF32\n\
1106 -a64 generate ELF64/XCOFF64\n\
1108 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1109 -mpwr generate code for POWER (RIOS1)\n\
1110 -m601 generate code for PowerPC 601\n\
1111 -mppc, -mppc32, -m603, -m604\n\
1112 generate code for PowerPC 603/604\n\
1113 -m403, -m405 generate code for PowerPC 403/405\n\
1114 -m440 generate code for PowerPC 440\n\
1115 -m7400, -m7410, -m7450, -m7455\n\
1116 generate code For PowerPC 7400/7410/7450/7455\n"));
1117 fprintf (stream, _("\
1118 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1119 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1120 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1121 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1122 -mpower4 generate code for Power4 architecture\n\
1123 -mpower5 generate code for Power5 architecture\n\
1124 -mpower6 generate code for Power6 architecture\n\
1125 -mcell generate code for Cell Broadband Engine architecture\n\
1126 -mcom generate code Power/PowerPC common instructions\n\
1127 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1128 fprintf (stream, _("\
1129 -maltivec generate code for AltiVec\n\
1130 -me300 generate code for PowerPC e300 family\n\
1131 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1132 -mspe generate code for Motorola SPE instructions\n\
1133 -mregnames Allow symbolic names for registers\n\
1134 -mno-regnames Do not allow symbolic names for registers\n"));
1136 fprintf (stream, _("\
1137 -mrelocatable support for GCC's -mrelocatble option\n\
1138 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1139 -memb set PPC_EMB bit in ELF flags\n\
1140 -mlittle, -mlittle-endian, -l, -le\n\
1141 generate code for a little endian machine\n\
1142 -mbig, -mbig-endian, -b, -be\n\
1143 generate code for a big endian machine\n\
1144 -msolaris generate code for Solaris\n\
1145 -mno-solaris do not generate code for Solaris\n\
1146 -V print assembler version number\n\
1147 -Qy, -Qn ignored\n"));
1151 /* Set ppc_cpu if it is not already set. */
1156 const char *default_os = TARGET_OS;
1157 const char *default_cpu = TARGET_CPU;
1159 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1162 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1163 else if (strncmp (default_os, "aix", 3) == 0
1164 && default_os[3] >= '4' && default_os[3] <= '9')
1165 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1166 else if (strncmp (default_os, "aix3", 4) == 0)
1167 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1168 else if (strcmp (default_cpu, "rs6000") == 0)
1169 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1170 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1171 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1173 as_fatal (_("Unknown default cpu = %s, os = %s"),
1174 default_cpu, default_os);
1178 /* Figure out the BFD architecture to use. This function and ppc_mach
1179 are called well before md_begin, when the output file is opened. */
1181 enum bfd_architecture
1184 const char *default_cpu = TARGET_CPU;
1187 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1188 return bfd_arch_powerpc;
1189 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1190 return bfd_arch_rs6000;
1191 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1193 if (strcmp (default_cpu, "rs6000") == 0)
1194 return bfd_arch_rs6000;
1195 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1196 return bfd_arch_powerpc;
1199 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1200 return bfd_arch_unknown;
1207 return bfd_mach_ppc64;
1208 else if (ppc_arch () == bfd_arch_rs6000)
1209 return bfd_mach_rs6k;
1211 return bfd_mach_ppc;
1215 ppc_target_format ()
1219 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1221 return "xcoff-powermac";
1224 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1226 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1232 return "elf32-powerpc-vxworks";
1234 return (target_big_endian
1235 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1236 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1241 /* Insert opcodes and macros into hash tables. Called at startup and
1245 ppc_setup_opcodes (void)
1247 register const struct powerpc_opcode *op;
1248 const struct powerpc_opcode *op_end;
1249 const struct powerpc_macro *macro;
1250 const struct powerpc_macro *macro_end;
1252 bfd_boolean bad_insn = FALSE;
1254 if (ppc_hash != NULL)
1255 hash_die (ppc_hash);
1256 if (ppc_macro_hash != NULL)
1257 hash_die (ppc_macro_hash);
1259 /* Insert the opcodes into a hash table. */
1260 ppc_hash = hash_new ();
1262 /* Check operand masks. Code here and in the disassembler assumes
1263 all the 1's in the mask are contiguous. */
1264 for (i = 0; i < num_powerpc_operands; ++i)
1266 unsigned long mask = powerpc_operands[i].bitm;
1267 unsigned long right_bit;
1269 right_bit = mask & -mask;
1271 right_bit = mask & -mask;
1272 if (mask != right_bit)
1274 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1279 op_end = powerpc_opcodes + powerpc_num_opcodes;
1280 for (op = powerpc_opcodes; op < op_end; op++)
1282 const unsigned char *o;
1283 unsigned long omask = op->mask;
1285 /* The mask had better not trim off opcode bits. */
1286 if ((op->opcode & omask) != op->opcode)
1288 as_bad (_("mask trims opcode bits for %s"),
1293 /* The operands must not overlap the opcode or each other. */
1294 for (o = op->operands; *o; ++o)
1295 if (*o >= num_powerpc_operands)
1297 as_bad (_("operand index error for %s"),
1303 const struct powerpc_operand *operand = &powerpc_operands[*o];
1304 if (operand->shift >= 0)
1306 unsigned long mask = operand->bitm << operand->shift;
1309 as_bad (_("operand %d overlap in %s"),
1310 (int) (o - op->operands), op->name);
1317 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1318 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1319 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1320 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1321 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1322 /* Certain instructions (eg: extsw) do not exist in the
1323 32-bit BookE instruction set, but they do exist in the
1324 64-bit BookE instruction set, and other PPC instruction
1325 sets. Check to see if the opcode has the BOOKE64 flag set.
1326 If it does make sure that the target CPU is not the BookE32. */
1327 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1328 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1329 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1330 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1331 || ((op->flags & PPC_OPCODE_POWER4)
1332 == (ppc_cpu & PPC_OPCODE_POWER4)))
1333 && ((op->flags & PPC_OPCODE_POWER5) == 0
1334 || ((op->flags & PPC_OPCODE_POWER5)
1335 == (ppc_cpu & PPC_OPCODE_POWER5)))
1336 && ((op->flags & PPC_OPCODE_POWER6) == 0
1337 || ((op->flags & PPC_OPCODE_POWER6)
1338 == (ppc_cpu & PPC_OPCODE_POWER6))))
1342 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1345 /* Ignore Power duplicates for -m601. */
1346 if ((ppc_cpu & PPC_OPCODE_601) != 0
1347 && (op->flags & PPC_OPCODE_POWER) != 0)
1350 as_bad (_("duplicate instruction %s"),
1357 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1358 for (op = powerpc_opcodes; op < op_end; op++)
1359 hash_insert (ppc_hash, op->name, (PTR) op);
1361 /* Insert the macros into a hash table. */
1362 ppc_macro_hash = hash_new ();
1364 macro_end = powerpc_macros + powerpc_num_macros;
1365 for (macro = powerpc_macros; macro < macro_end; macro++)
1367 if ((macro->flags & ppc_cpu) != 0)
1371 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1372 if (retval != (const char *) NULL)
1374 as_bad (_("duplicate macro %s"), macro->name);
1384 /* This function is called when the assembler starts up. It is called
1385 after the options have been parsed and the output file has been
1393 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1396 /* Set the ELF flags if desired. */
1397 if (ppc_flags && !msolaris)
1398 bfd_set_private_flags (stdoutput, ppc_flags);
1401 ppc_setup_opcodes ();
1403 /* Tell the main code what the endianness is if it is not overridden
1405 if (!set_target_endian)
1407 set_target_endian = 1;
1408 target_big_endian = PPC_BIG_ENDIAN;
1412 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1414 /* Create dummy symbols to serve as initial csects. This forces the
1415 text csects to precede the data csects. These symbols will not
1417 ppc_text_csects = symbol_make ("dummy\001");
1418 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1419 ppc_data_csects = symbol_make ("dummy\001");
1420 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1425 ppc_current_section = text_section;
1426 ppc_previous_section = 0;
1435 if (ppc_apuinfo_list == NULL)
1438 /* Ok, so write the section info out. We have this layout:
1442 0 8 length of "APUinfo\0"
1443 4 (n*4) number of APU's (4 bytes each)
1446 20 APU#1 first APU's info
1447 24 APU#2 second APU's info
1452 asection *seg = now_seg;
1453 subsegT subseg = now_subseg;
1454 asection *apuinfo_secp = (asection *) NULL;
1457 /* Create the .PPC.EMB.apuinfo section. */
1458 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1459 bfd_set_section_flags (stdoutput,
1461 SEC_HAS_CONTENTS | SEC_READONLY);
1464 md_number_to_chars (p, (valueT) 8, 4);
1467 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1470 md_number_to_chars (p, (valueT) 2, 4);
1473 strcpy (p, "APUinfo");
1475 for (i = 0; i < ppc_apuinfo_num; i++)
1478 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1481 frag_align (2, 0, 0);
1483 /* We probably can't restore the current segment, for there likely
1486 subseg_set (seg, subseg);
1491 /* Insert an operand value into an instruction. */
1493 static unsigned long
1494 ppc_insert_operand (insn, operand, val, file, line)
1496 const struct powerpc_operand *operand;
1501 long min, max, right;
1504 max = operand->bitm;
1508 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1510 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1512 min = ~(max | ((max & -max) - 1)) ;
1516 /* Some people write 32 bit hex constants with the sign
1517 extension done by hand. This shouldn't really be
1518 valid, but, to permit this code to assemble on a 64
1519 bit host, we sign extend the 32 bit value. */
1521 && (val & (offsetT) 0x80000000) != 0
1522 && (val & (offsetT) 0xffffffff) == val)
1530 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1536 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1541 if (test < (offsetT) min
1542 || test > (offsetT) max
1543 || (test & (right - 1)) != 0)
1544 as_bad_value_out_of_range (_("operand"),
1545 test, (offsetT) min, (offsetT) max, file, line);
1547 if (operand->insert)
1552 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1553 if (errmsg != (const char *) NULL)
1554 as_bad_where (file, line, errmsg);
1557 insn |= ((long) val & operand->bitm) << operand->shift;
1564 /* Parse @got, etc. and return the desired relocation. */
1565 static bfd_reloc_code_real_type
1566 ppc_elf_suffix (str_p, exp_p)
1572 unsigned int length : 8;
1573 unsigned int valid32 : 1;
1574 unsigned int valid64 : 1;
1583 const struct map_bfd *ptr;
1585 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1586 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1587 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1589 static const struct map_bfd mapping[] = {
1590 MAP ("l", BFD_RELOC_LO16),
1591 MAP ("h", BFD_RELOC_HI16),
1592 MAP ("ha", BFD_RELOC_HI16_S),
1593 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1594 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1595 MAP ("got", BFD_RELOC_16_GOTOFF),
1596 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1597 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1598 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1599 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1600 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1601 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1602 MAP ("copy", BFD_RELOC_PPC_COPY),
1603 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1604 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1605 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1606 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1607 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1608 MAP ("tls", BFD_RELOC_PPC_TLS),
1609 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1610 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1611 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1612 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1613 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1614 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1615 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1616 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1617 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1618 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1619 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1620 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1621 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1622 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1623 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1624 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1625 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1626 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1627 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1628 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1629 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1630 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1631 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1632 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1633 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1634 MAP32 ("fixup", BFD_RELOC_CTOR),
1635 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1636 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1637 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1638 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1639 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1640 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1641 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1642 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1643 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1644 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1645 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1646 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1647 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1648 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1649 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1650 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1651 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1652 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1653 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1654 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1655 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1656 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1657 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1658 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1659 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1660 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1661 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1662 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1663 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1664 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1665 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1666 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1667 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1668 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1669 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1670 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1671 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1672 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1673 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1674 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1675 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1679 return BFD_RELOC_UNUSED;
1681 for (ch = *str, str2 = ident;
1682 (str2 < ident + sizeof (ident) - 1
1683 && (ISALNUM (ch) || ch == '@'));
1686 *str2++ = TOLOWER (ch);
1693 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1694 if (ch == ptr->string[0]
1695 && len == ptr->length
1696 && memcmp (ident, ptr->string, ptr->length) == 0
1697 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1699 int reloc = ptr->reloc;
1702 if (exp_p->X_add_number != 0
1703 && (reloc == (int) BFD_RELOC_16_GOTOFF
1704 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1705 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1706 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1707 as_warn (_("identifier+constant@got means identifier@got+constant"));
1709 /* Now check for identifier@suffix+constant. */
1710 if (*str == '-' || *str == '+')
1712 char *orig_line = input_line_pointer;
1713 expressionS new_exp;
1715 input_line_pointer = str;
1716 expression (&new_exp);
1717 if (new_exp.X_op == O_constant)
1719 exp_p->X_add_number += new_exp.X_add_number;
1720 str = input_line_pointer;
1723 if (&input_line_pointer != str_p)
1724 input_line_pointer = orig_line;
1728 if (reloc == (int) BFD_RELOC_PPC64_TOC
1729 && exp_p->X_op == O_symbol
1730 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1732 /* Change the symbol so that the dummy .TOC. symbol can be
1733 omitted from the object file. */
1734 exp_p->X_add_symbol = &abs_symbol;
1737 return (bfd_reloc_code_real_type) reloc;
1740 return BFD_RELOC_UNUSED;
1743 /* Like normal .long/.short/.word, except support @got, etc.
1744 Clobbers input_line_pointer, checks end-of-line. */
1746 ppc_elf_cons (nbytes)
1747 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1750 bfd_reloc_code_real_type reloc;
1752 if (is_it_end_of_statement ())
1754 demand_empty_rest_of_line ();
1761 if (exp.X_op == O_symbol
1762 && *input_line_pointer == '@'
1763 && (reloc = ppc_elf_suffix (&input_line_pointer,
1764 &exp)) != BFD_RELOC_UNUSED)
1766 reloc_howto_type *reloc_howto;
1769 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1770 size = bfd_get_reloc_size (reloc_howto);
1774 as_bad (_("%s relocations do not fit in %d bytes\n"),
1775 reloc_howto->name, nbytes);
1782 p = frag_more (nbytes);
1784 if (target_big_endian)
1785 offset = nbytes - size;
1786 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1791 emit_expr (&exp, (unsigned int) nbytes);
1793 while (*input_line_pointer++ == ',');
1795 /* Put terminator back into stream. */
1796 input_line_pointer--;
1797 demand_empty_rest_of_line ();
1800 /* Solaris pseduo op to change to the .rodata section. */
1805 char *save_line = input_line_pointer;
1806 static char section[] = ".rodata\n";
1808 /* Just pretend this is .section .rodata */
1809 input_line_pointer = section;
1810 obj_elf_section (xxx);
1812 input_line_pointer = save_line;
1815 /* Pseudo op to make file scope bss items. */
1818 int xxx ATTRIBUTE_UNUSED;
1820 register char *name;
1824 register symbolS *symbolP;
1831 name = input_line_pointer;
1832 c = get_symbol_end ();
1834 /* just after name is now '\0'. */
1835 p = input_line_pointer;
1838 if (*input_line_pointer != ',')
1840 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1841 ignore_rest_of_line ();
1845 input_line_pointer++; /* skip ',' */
1846 if ((size = get_absolute_expression ()) < 0)
1848 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1849 ignore_rest_of_line ();
1853 /* The third argument to .lcomm is the alignment. */
1854 if (*input_line_pointer != ',')
1858 ++input_line_pointer;
1859 align = get_absolute_expression ();
1862 as_warn (_("ignoring bad alignment"));
1868 symbolP = symbol_find_or_make (name);
1871 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1873 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1874 S_GET_NAME (symbolP));
1875 ignore_rest_of_line ();
1879 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1881 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1882 S_GET_NAME (symbolP),
1883 (long) S_GET_VALUE (symbolP),
1886 ignore_rest_of_line ();
1892 old_subsec = now_subseg;
1895 /* Convert to a power of 2 alignment. */
1896 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1899 as_bad (_("Common alignment not a power of 2"));
1900 ignore_rest_of_line ();
1907 record_alignment (bss_section, align2);
1908 subseg_set (bss_section, 0);
1910 frag_align (align2, 0, 0);
1911 if (S_GET_SEGMENT (symbolP) == bss_section)
1912 symbol_get_frag (symbolP)->fr_symbol = 0;
1913 symbol_set_frag (symbolP, frag_now);
1914 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1917 S_SET_SIZE (symbolP, size);
1918 S_SET_SEGMENT (symbolP, bss_section);
1919 subseg_set (old_sec, old_subsec);
1920 demand_empty_rest_of_line ();
1923 /* Validate any relocations emitted for -mrelocatable, possibly adding
1924 fixups for word relocations in writable segments, so we can adjust
1927 ppc_elf_validate_fix (fixp, seg)
1931 if (fixp->fx_done || fixp->fx_pcrel)
1940 case SHLIB_MRELOCATABLE:
1941 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1942 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1943 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1944 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1945 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1946 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1947 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1948 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1949 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1950 && (seg->flags & SEC_LOAD) != 0
1951 && strcmp (segment_name (seg), ".got2") != 0
1952 && strcmp (segment_name (seg), ".dtors") != 0
1953 && strcmp (segment_name (seg), ".ctors") != 0
1954 && strcmp (segment_name (seg), ".fixup") != 0
1955 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1956 && strcmp (segment_name (seg), ".eh_frame") != 0
1957 && strcmp (segment_name (seg), ".ex_shared") != 0)
1959 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1960 || fixp->fx_r_type != BFD_RELOC_CTOR)
1962 as_bad_where (fixp->fx_file, fixp->fx_line,
1963 _("Relocation cannot be done when using -mrelocatable"));
1970 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1971 function descriptor sym if the corresponding code sym is used. */
1974 ppc_frob_file_before_adjust ()
1982 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1989 name = S_GET_NAME (symp);
1993 if (! S_IS_WEAK (symp)
1994 || S_IS_DEFINED (symp))
1997 len = strlen (name) + 1;
1998 dotname = xmalloc (len + 1);
2000 memcpy (dotname + 1, name, len);
2001 dotsym = symbol_find_noref (dotname, 1);
2003 if (dotsym != NULL && (symbol_used_p (dotsym)
2004 || symbol_used_in_reloc_p (dotsym)))
2005 symbol_mark_used (symp);
2009 toc = bfd_get_section_by_name (stdoutput, ".toc");
2011 && bfd_section_size (stdoutput, toc) > 0x10000)
2012 as_warn (_("TOC section size exceeds 64k"));
2014 /* Don't emit .TOC. symbol. */
2015 symp = symbol_find (".TOC.");
2017 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2019 #endif /* OBJ_ELF */
2024 * Summary of parse_toc_entry.
2026 * in: Input_line_pointer points to the '[' in one of:
2028 * [toc] [tocv] [toc32] [toc64]
2030 * Anything else is an error of one kind or another.
2033 * return value: success or failure
2034 * toc_kind: kind of toc reference
2035 * input_line_pointer:
2036 * success: first char after the ']'
2037 * failure: unchanged
2041 * [toc] - rv == success, toc_kind = default_toc
2042 * [tocv] - rv == success, toc_kind = data_in_toc
2043 * [toc32] - rv == success, toc_kind = must_be_32
2044 * [toc64] - rv == success, toc_kind = must_be_64
2048 enum toc_size_qualifier
2050 default_toc, /* The toc cell constructed should be the system default size */
2051 data_in_toc, /* This is a direct reference to a toc cell */
2052 must_be_32, /* The toc cell constructed must be 32 bits wide */
2053 must_be_64 /* The toc cell constructed must be 64 bits wide */
2057 parse_toc_entry (toc_kind)
2058 enum toc_size_qualifier *toc_kind;
2063 enum toc_size_qualifier t;
2065 /* Save the input_line_pointer. */
2066 start = input_line_pointer;
2068 /* Skip over the '[' , and whitespace. */
2069 ++input_line_pointer;
2072 /* Find the spelling of the operand. */
2073 toc_spec = input_line_pointer;
2074 c = get_symbol_end ();
2076 if (strcmp (toc_spec, "toc") == 0)
2080 else if (strcmp (toc_spec, "tocv") == 0)
2084 else if (strcmp (toc_spec, "toc32") == 0)
2088 else if (strcmp (toc_spec, "toc64") == 0)
2094 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2095 *input_line_pointer = c;
2096 input_line_pointer = start;
2100 /* Now find the ']'. */
2101 *input_line_pointer = c;
2103 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2104 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2108 as_bad (_("syntax error: expected `]', found `%c'"), c);
2109 input_line_pointer = start;
2120 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2122 ppc_apuinfo_section_add (apu, version)
2123 unsigned int apu, version;
2127 /* Check we don't already exist. */
2128 for (i = 0; i < ppc_apuinfo_num; i++)
2129 if (ppc_apuinfo_list[i] == APUID (apu, version))
2132 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2134 if (ppc_apuinfo_num_alloc == 0)
2136 ppc_apuinfo_num_alloc = 4;
2137 ppc_apuinfo_list = (unsigned long *)
2138 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2142 ppc_apuinfo_num_alloc += 4;
2143 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2144 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2147 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2153 /* We need to keep a list of fixups. We can't simply generate them as
2154 we go, because that would require us to first create the frag, and
2155 that would screw up references to ``.''. */
2161 bfd_reloc_code_real_type reloc;
2164 #define MAX_INSN_FIXUPS (5)
2166 /* This routine is called for each instruction to be assembled. */
2173 const struct powerpc_opcode *opcode;
2175 const unsigned char *opindex_ptr;
2179 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2185 bfd_reloc_code_real_type reloc;
2188 /* Get the opcode. */
2189 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2194 /* Look up the opcode in the hash table. */
2195 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2196 if (opcode == (const struct powerpc_opcode *) NULL)
2198 const struct powerpc_macro *macro;
2200 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2201 if (macro == (const struct powerpc_macro *) NULL)
2202 as_bad (_("Unrecognized opcode: `%s'"), str);
2204 ppc_macro (s, macro);
2209 insn = opcode->opcode;
2212 while (ISSPACE (*str))
2215 /* PowerPC operands are just expressions. The only real issue is
2216 that a few operand types are optional. All cases which might use
2217 an optional operand separate the operands only with commas (in some
2218 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2219 have optional operands). Most instructions with optional operands
2220 have only one. Those that have more than one optional operand can
2221 take either all their operands or none. So, before we start seriously
2222 parsing the operands, we check to see if we have optional operands,
2223 and if we do, we count the number of commas to see which operands
2224 have been omitted. */
2226 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2228 const struct powerpc_operand *operand;
2230 operand = &powerpc_operands[*opindex_ptr];
2231 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2233 unsigned int opcount;
2234 unsigned int num_operands_expected;
2237 /* There is an optional operand. Count the number of
2238 commas in the input line. */
2245 while ((s = strchr (s, ',')) != (char *) NULL)
2252 /* Compute the number of expected operands.
2253 Do not count fake operands. */
2254 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2255 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2256 ++ num_operands_expected;
2258 /* If there are fewer operands in the line then are called
2259 for by the instruction, we want to skip the optional
2261 if (opcount < num_operands_expected)
2268 /* Gather the operands. */
2272 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2274 const struct powerpc_operand *operand;
2280 if (next_opindex == 0)
2281 operand = &powerpc_operands[*opindex_ptr];
2284 operand = &powerpc_operands[next_opindex];
2289 /* If this is a fake operand, then we do not expect anything
2291 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2293 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2294 if (errmsg != (const char *) NULL)
2299 /* If this is an optional operand, and we are skipping it, just
2301 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2304 if (operand->insert)
2306 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2307 if (errmsg != (const char *) NULL)
2310 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2311 next_opindex = *opindex_ptr + 1;
2315 /* Gather the operand. */
2316 hold = input_line_pointer;
2317 input_line_pointer = str;
2320 if (*input_line_pointer == '[')
2322 /* We are expecting something like the second argument here:
2324 * lwz r4,[toc].GS.0.static_int(rtoc)
2325 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2326 * The argument following the `]' must be a symbol name, and the
2327 * register must be the toc register: 'rtoc' or '2'
2329 * The effect is to 0 as the displacement field
2330 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2331 * the appropriate variation) reloc against it based on the symbol.
2332 * The linker will build the toc, and insert the resolved toc offset.
2335 * o The size of the toc entry is currently assumed to be
2336 * 32 bits. This should not be assumed to be a hard coded
2338 * o In an effort to cope with a change from 32 to 64 bits,
2339 * there are also toc entries that are specified to be
2340 * either 32 or 64 bits:
2341 * lwz r4,[toc32].GS.0.static_int(rtoc)
2342 * lwz r4,[toc64].GS.0.static_int(rtoc)
2343 * These demand toc entries of the specified size, and the
2344 * instruction probably requires it.
2348 enum toc_size_qualifier toc_kind;
2349 bfd_reloc_code_real_type toc_reloc;
2351 /* Go parse off the [tocXX] part. */
2352 valid_toc = parse_toc_entry (&toc_kind);
2356 /* Note: message has already been issued.
2357 FIXME: what sort of recovery should we do?
2358 demand_rest_of_line (); return; ? */
2361 /* Now get the symbol following the ']'. */
2367 /* In this case, we may not have seen the symbol yet,
2368 since it is allowed to appear on a .extern or .globl
2369 or just be a label in the .data section. */
2370 toc_reloc = BFD_RELOC_PPC_TOC16;
2373 /* 1. The symbol must be defined and either in the toc
2374 section, or a global.
2375 2. The reloc generated must have the TOCDEFN flag set
2376 in upper bit mess of the reloc type.
2377 FIXME: It's a little confusing what the tocv
2378 qualifier can be used for. At the very least, I've
2379 seen three uses, only one of which I'm sure I can
2381 if (ex.X_op == O_symbol)
2383 assert (ex.X_add_symbol != NULL);
2384 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2387 as_bad (_("[tocv] symbol is not a toc symbol"));
2391 toc_reloc = BFD_RELOC_PPC_TOC16;
2394 /* FIXME: these next two specifically specify 32/64 bit
2395 toc entries. We don't support them today. Is this
2396 the right way to say that? */
2397 toc_reloc = BFD_RELOC_UNUSED;
2398 as_bad (_("Unimplemented toc32 expression modifier"));
2401 /* FIXME: see above. */
2402 toc_reloc = BFD_RELOC_UNUSED;
2403 as_bad (_("Unimplemented toc64 expression modifier"));
2407 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2413 /* We need to generate a fixup for this expression. */
2414 if (fc >= MAX_INSN_FIXUPS)
2415 as_fatal (_("too many fixups"));
2417 fixups[fc].reloc = toc_reloc;
2418 fixups[fc].exp = ex;
2419 fixups[fc].opindex = *opindex_ptr;
2422 /* Ok. We've set up the fixup for the instruction. Now make it
2423 look like the constant 0 was found here. */
2425 ex.X_op = O_constant;
2426 ex.X_add_number = 0;
2427 ex.X_add_symbol = NULL;
2428 ex.X_op_symbol = NULL;
2434 if (! register_name (&ex))
2436 if ((operand->flags & PPC_OPERAND_CR) != 0)
2443 str = input_line_pointer;
2444 input_line_pointer = hold;
2446 if (ex.X_op == O_illegal)
2447 as_bad (_("illegal operand"));
2448 else if (ex.X_op == O_absent)
2449 as_bad (_("missing operand"));
2450 else if (ex.X_op == O_register)
2452 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2455 else if (ex.X_op == O_constant)
2458 /* Allow @HA, @L, @H on constants. */
2459 char *orig_str = str;
2461 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2468 case BFD_RELOC_LO16:
2469 /* X_unsigned is the default, so if the user has done
2470 something which cleared it, we always produce a
2472 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2473 ex.X_add_number &= 0xffff;
2475 ex.X_add_number = SEX16 (ex.X_add_number);
2478 case BFD_RELOC_HI16:
2479 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2480 ex.X_add_number = PPC_HI (ex.X_add_number);
2482 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2485 case BFD_RELOC_HI16_S:
2486 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2487 ex.X_add_number = PPC_HA (ex.X_add_number);
2489 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2492 case BFD_RELOC_PPC64_HIGHER:
2493 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2494 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2496 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2499 case BFD_RELOC_PPC64_HIGHER_S:
2500 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2501 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2503 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2506 case BFD_RELOC_PPC64_HIGHEST:
2507 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2508 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2510 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2513 case BFD_RELOC_PPC64_HIGHEST_S:
2514 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2515 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2517 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2520 #endif /* OBJ_ELF */
2521 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2525 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2527 /* Some TLS tweaks. */
2532 case BFD_RELOC_PPC_TLS:
2533 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2536 /* We'll only use the 32 (or 64) bit form of these relocations
2537 in constants. Instructions get the 16 bit form. */
2538 case BFD_RELOC_PPC_DTPREL:
2539 reloc = BFD_RELOC_PPC_DTPREL16;
2541 case BFD_RELOC_PPC_TPREL:
2542 reloc = BFD_RELOC_PPC_TPREL16;
2546 /* For the absolute forms of branches, convert the PC
2547 relative form back into the absolute. */
2548 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2552 case BFD_RELOC_PPC_B26:
2553 reloc = BFD_RELOC_PPC_BA26;
2555 case BFD_RELOC_PPC_B16:
2556 reloc = BFD_RELOC_PPC_BA16;
2558 case BFD_RELOC_PPC_B16_BRTAKEN:
2559 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2561 case BFD_RELOC_PPC_B16_BRNTAKEN:
2562 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2570 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2575 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2577 case BFD_RELOC_LO16:
2578 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2580 case BFD_RELOC_16_GOTOFF:
2581 reloc = BFD_RELOC_PPC64_GOT16_DS;
2583 case BFD_RELOC_LO16_GOTOFF:
2584 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2586 case BFD_RELOC_LO16_PLTOFF:
2587 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2589 case BFD_RELOC_16_BASEREL:
2590 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2592 case BFD_RELOC_LO16_BASEREL:
2593 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2595 case BFD_RELOC_PPC_TOC16:
2596 reloc = BFD_RELOC_PPC64_TOC16_DS;
2598 case BFD_RELOC_PPC64_TOC16_LO:
2599 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2601 case BFD_RELOC_PPC64_PLTGOT16:
2602 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2604 case BFD_RELOC_PPC64_PLTGOT16_LO:
2605 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2607 case BFD_RELOC_PPC_DTPREL16:
2608 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2610 case BFD_RELOC_PPC_DTPREL16_LO:
2611 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2613 case BFD_RELOC_PPC_TPREL16:
2614 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2616 case BFD_RELOC_PPC_TPREL16_LO:
2617 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2619 case BFD_RELOC_PPC_GOT_DTPREL16:
2620 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2621 case BFD_RELOC_PPC_GOT_TPREL16:
2622 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2625 as_bad (_("unsupported relocation for DS offset field"));
2630 /* We need to generate a fixup for this expression. */
2631 if (fc >= MAX_INSN_FIXUPS)
2632 as_fatal (_("too many fixups"));
2633 fixups[fc].exp = ex;
2634 fixups[fc].opindex = 0;
2635 fixups[fc].reloc = reloc;
2638 #endif /* OBJ_ELF */
2642 /* We need to generate a fixup for this expression. */
2643 if (fc >= MAX_INSN_FIXUPS)
2644 as_fatal (_("too many fixups"));
2645 fixups[fc].exp = ex;
2646 fixups[fc].opindex = *opindex_ptr;
2647 fixups[fc].reloc = BFD_RELOC_UNUSED;
2656 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2664 /* The call to expression should have advanced str past any
2667 && (endc != ',' || *str != '\0'))
2669 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2677 while (ISSPACE (*str))
2681 as_bad (_("junk at end of line: `%s'"), str);
2684 /* Do we need/want a APUinfo section? */
2685 if (ppc_cpu & (PPC_OPCODE_SPE
2686 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2687 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2688 | PPC_OPCODE_RFMCI))
2690 /* These are all version "1". */
2691 if (opcode->flags & PPC_OPCODE_SPE)
2692 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2693 if (opcode->flags & PPC_OPCODE_ISEL)
2694 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2695 if (opcode->flags & PPC_OPCODE_EFS)
2696 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2697 if (opcode->flags & PPC_OPCODE_BRLOCK)
2698 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2699 if (opcode->flags & PPC_OPCODE_PMR)
2700 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2701 if (opcode->flags & PPC_OPCODE_CACHELCK)
2702 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2703 if (opcode->flags & PPC_OPCODE_RFMCI)
2704 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2708 /* Write out the instruction. */
2710 addr_mod = frag_now_fix () & 3;
2711 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2712 as_bad (_("instruction address is not a multiple of 4"));
2713 frag_now->insn_addr = addr_mod;
2714 frag_now->has_code = 1;
2715 md_number_to_chars (f, insn, 4);
2718 dwarf2_emit_insn (4);
2721 /* Create any fixups. At this point we do not use a
2722 bfd_reloc_code_real_type, but instead just use the
2723 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2724 handle fixups for any operand type, although that is admittedly
2725 not a very exciting feature. We pick a BFD reloc type in
2727 for (i = 0; i < fc; i++)
2729 const struct powerpc_operand *operand;
2731 operand = &powerpc_operands[fixups[i].opindex];
2732 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2734 reloc_howto_type *reloc_howto;
2739 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2743 size = bfd_get_reloc_size (reloc_howto);
2744 offset = target_big_endian ? (4 - size) : 0;
2746 if (size < 1 || size > 4)
2749 fixP = fix_new_exp (frag_now,
2750 f - frag_now->fr_literal + offset,
2753 reloc_howto->pc_relative,
2756 /* Turn off complaints that the addend is too large for things like
2758 switch (fixups[i].reloc)
2760 case BFD_RELOC_16_GOTOFF:
2761 case BFD_RELOC_PPC_TOC16:
2762 case BFD_RELOC_LO16:
2763 case BFD_RELOC_HI16:
2764 case BFD_RELOC_HI16_S:
2766 case BFD_RELOC_PPC64_HIGHER:
2767 case BFD_RELOC_PPC64_HIGHER_S:
2768 case BFD_RELOC_PPC64_HIGHEST:
2769 case BFD_RELOC_PPC64_HIGHEST_S:
2771 fixP->fx_no_overflow = 1;
2778 fix_new_exp (frag_now,
2779 f - frag_now->fr_literal,
2782 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2783 ((bfd_reloc_code_real_type)
2784 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2788 /* Handle a macro. Gather all the operands, transform them as
2789 described by the macro, and call md_assemble recursively. All the
2790 operands are separated by commas; we don't accept parentheses
2791 around operands here. */
2794 ppc_macro (str, macro)
2796 const struct powerpc_macro *macro;
2807 /* Gather the users operands into the operands array. */
2812 if (count >= sizeof operands / sizeof operands[0])
2814 operands[count++] = s;
2815 s = strchr (s, ',');
2816 if (s == (char *) NULL)
2821 if (count != macro->operands)
2823 as_bad (_("wrong number of operands"));
2827 /* Work out how large the string must be (the size is unbounded
2828 because it includes user input). */
2830 format = macro->format;
2831 while (*format != '\0')
2840 arg = strtol (format + 1, &send, 10);
2841 know (send != format && arg >= 0 && arg < count);
2842 len += strlen (operands[arg]);
2847 /* Put the string together. */
2848 complete = s = (char *) alloca (len + 1);
2849 format = macro->format;
2850 while (*format != '\0')
2856 arg = strtol (format + 1, &send, 10);
2857 strcpy (s, operands[arg]);
2864 /* Assemble the constructed instruction. */
2865 md_assemble (complete);
2869 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2872 ppc_section_letter (letter, ptr_msg)
2879 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2884 ppc_section_word (str, len)
2888 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2895 ppc_section_type (str, len)
2899 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2906 ppc_section_flags (flags, attr, type)
2911 if (type == SHT_ORDERED)
2912 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2914 if (attr & SHF_EXCLUDE)
2915 flags |= SEC_EXCLUDE;
2919 #endif /* OBJ_ELF */
2922 /* Pseudo-op handling. */
2924 /* The .byte pseudo-op. This is similar to the normal .byte
2925 pseudo-op, but it can also take a single ASCII string. */
2929 int ignore ATTRIBUTE_UNUSED;
2931 if (*input_line_pointer != '\"')
2937 /* Gather characters. A real double quote is doubled. Unusual
2938 characters are not permitted. */
2939 ++input_line_pointer;
2944 c = *input_line_pointer++;
2948 if (*input_line_pointer != '\"')
2950 ++input_line_pointer;
2953 FRAG_APPEND_1_CHAR (c);
2956 demand_empty_rest_of_line ();
2961 /* XCOFF specific pseudo-op handling. */
2963 /* This is set if we are creating a .stabx symbol, since we don't want
2964 to handle symbol suffixes for such symbols. */
2965 static bfd_boolean ppc_stab_symbol;
2967 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2968 symbols in the .bss segment as though they were local common
2969 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2970 aligns .comm and .lcomm to 4 bytes. */
2976 asection *current_seg = now_seg;
2977 subsegT current_subseg = now_subseg;
2983 symbolS *lcomm_sym = NULL;
2987 name = input_line_pointer;
2988 endc = get_symbol_end ();
2989 end_name = input_line_pointer;
2992 if (*input_line_pointer != ',')
2994 as_bad (_("missing size"));
2995 ignore_rest_of_line ();
2998 ++input_line_pointer;
3000 size = get_absolute_expression ();
3003 as_bad (_("negative size"));
3004 ignore_rest_of_line ();
3010 /* The third argument to .comm is the alignment. */
3011 if (*input_line_pointer != ',')
3015 ++input_line_pointer;
3016 align = get_absolute_expression ();
3019 as_warn (_("ignoring bad alignment"));
3034 /* The third argument to .lcomm appears to be the real local
3035 common symbol to create. References to the symbol named in
3036 the first argument are turned into references to the third
3038 if (*input_line_pointer != ',')
3040 as_bad (_("missing real symbol name"));
3041 ignore_rest_of_line ();
3044 ++input_line_pointer;
3046 lcomm_name = input_line_pointer;
3047 lcomm_endc = get_symbol_end ();
3049 lcomm_sym = symbol_find_or_make (lcomm_name);
3051 *input_line_pointer = lcomm_endc;
3055 sym = symbol_find_or_make (name);
3058 if (S_IS_DEFINED (sym)
3059 || S_GET_VALUE (sym) != 0)
3061 as_bad (_("attempt to redefine symbol"));
3062 ignore_rest_of_line ();
3066 record_alignment (bss_section, align);
3069 || ! S_IS_DEFINED (lcomm_sym))
3078 S_SET_EXTERNAL (sym);
3082 symbol_get_tc (lcomm_sym)->output = 1;
3083 def_sym = lcomm_sym;
3087 subseg_set (bss_section, 1);
3088 frag_align (align, 0, 0);
3090 symbol_set_frag (def_sym, frag_now);
3091 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3092 def_size, (char *) NULL);
3094 S_SET_SEGMENT (def_sym, bss_section);
3095 symbol_get_tc (def_sym)->align = align;
3099 /* Align the size of lcomm_sym. */
3100 symbol_get_frag (lcomm_sym)->fr_offset =
3101 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3102 &~ ((1 << align) - 1));
3103 if (align > symbol_get_tc (lcomm_sym)->align)
3104 symbol_get_tc (lcomm_sym)->align = align;
3109 /* Make sym an offset from lcomm_sym. */
3110 S_SET_SEGMENT (sym, bss_section);
3111 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3112 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3113 symbol_get_frag (lcomm_sym)->fr_offset += size;
3116 subseg_set (current_seg, current_subseg);
3118 demand_empty_rest_of_line ();
3121 /* The .csect pseudo-op. This switches us into a different
3122 subsegment. The first argument is a symbol whose value is the
3123 start of the .csect. In COFF, csect symbols get special aux
3124 entries defined by the x_csect field of union internal_auxent. The
3125 optional second argument is the alignment (the default is 2). */
3129 int ignore ATTRIBUTE_UNUSED;
3136 name = input_line_pointer;
3137 endc = get_symbol_end ();
3139 sym = symbol_find_or_make (name);
3141 *input_line_pointer = endc;
3143 if (S_GET_NAME (sym)[0] == '\0')
3145 /* An unnamed csect is assumed to be [PR]. */
3146 symbol_get_tc (sym)->class = XMC_PR;
3150 if (*input_line_pointer == ',')
3152 ++input_line_pointer;
3153 align = get_absolute_expression ();
3156 ppc_change_csect (sym, align);
3158 demand_empty_rest_of_line ();
3161 /* Change to a different csect. */
3164 ppc_change_csect (sym, align)
3168 if (S_IS_DEFINED (sym))
3169 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3179 /* This is a new csect. We need to look at the symbol class to
3180 figure out whether it should go in the text section or the
3184 switch (symbol_get_tc (sym)->class)
3194 S_SET_SEGMENT (sym, text_section);
3195 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3196 ++ppc_text_subsegment;
3197 list_ptr = &ppc_text_csects;
3207 if (ppc_toc_csect != NULL
3208 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3209 == ppc_data_subsegment))
3211 S_SET_SEGMENT (sym, data_section);
3212 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3213 ++ppc_data_subsegment;
3214 list_ptr = &ppc_data_csects;
3220 /* We set the obstack chunk size to a small value before
3221 changing subsegments, so that we don't use a lot of memory
3222 space for what may be a small section. */
3223 hold_chunksize = chunksize;
3226 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3227 symbol_get_tc (sym)->subseg);
3229 chunksize = hold_chunksize;
3232 ppc_after_toc_frag = frag_now;
3234 record_alignment (sec, align);
3236 frag_align_code (align, 0);
3238 frag_align (align, 0, 0);
3240 symbol_set_frag (sym, frag_now);
3241 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3243 symbol_get_tc (sym)->align = align;
3244 symbol_get_tc (sym)->output = 1;
3245 symbol_get_tc (sym)->within = sym;
3247 for (list = *list_ptr;
3248 symbol_get_tc (list)->next != (symbolS *) NULL;
3249 list = symbol_get_tc (list)->next)
3251 symbol_get_tc (list)->next = sym;
3253 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3254 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3258 ppc_current_csect = sym;
3261 /* This function handles the .text and .data pseudo-ops. These
3262 pseudo-ops aren't really used by XCOFF; we implement them for the
3263 convenience of people who aren't used to XCOFF. */
3274 else if (type == 'd')
3279 sym = symbol_find_or_make (name);
3281 ppc_change_csect (sym, 2);
3283 demand_empty_rest_of_line ();
3286 /* This function handles the .section pseudo-op. This is mostly to
3287 give an error, since XCOFF only supports .text, .data and .bss, but
3288 we do permit the user to name the text or data section. */
3291 ppc_named_section (ignore)
3292 int ignore ATTRIBUTE_UNUSED;
3295 const char *real_name;
3299 user_name = input_line_pointer;
3300 c = get_symbol_end ();
3302 if (strcmp (user_name, ".text") == 0)
3303 real_name = ".text[PR]";
3304 else if (strcmp (user_name, ".data") == 0)
3305 real_name = ".data[RW]";
3308 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3309 *input_line_pointer = c;
3310 ignore_rest_of_line ();
3314 *input_line_pointer = c;
3316 sym = symbol_find_or_make (real_name);
3318 ppc_change_csect (sym, 2);
3320 demand_empty_rest_of_line ();
3323 /* The .extern pseudo-op. We create an undefined symbol. */
3327 int ignore ATTRIBUTE_UNUSED;
3332 name = input_line_pointer;
3333 endc = get_symbol_end ();
3335 (void) symbol_find_or_make (name);
3337 *input_line_pointer = endc;
3339 demand_empty_rest_of_line ();
3342 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3346 int ignore ATTRIBUTE_UNUSED;
3352 name = input_line_pointer;
3353 endc = get_symbol_end ();
3355 sym = symbol_find_or_make (name);
3357 *input_line_pointer = endc;
3359 symbol_get_tc (sym)->output = 1;
3361 demand_empty_rest_of_line ();
3364 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3365 although I don't know why it bothers. */
3369 int ignore ATTRIBUTE_UNUSED;
3376 name = input_line_pointer;
3377 endc = get_symbol_end ();
3379 sym = symbol_find_or_make (name);
3381 *input_line_pointer = endc;
3383 if (*input_line_pointer != ',')
3385 as_bad (_("missing rename string"));
3386 ignore_rest_of_line ();
3389 ++input_line_pointer;
3391 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3393 demand_empty_rest_of_line ();
3396 /* The .stabx pseudo-op. This is similar to a normal .stabs
3397 pseudo-op, but slightly different. A sample is
3398 .stabx "main:F-1",.main,142,0
3399 The first argument is the symbol name to create. The second is the
3400 value, and the third is the storage class. The fourth seems to be
3401 always zero, and I am assuming it is the type. */
3405 int ignore ATTRIBUTE_UNUSED;
3412 name = demand_copy_C_string (&len);
3414 if (*input_line_pointer != ',')
3416 as_bad (_("missing value"));
3419 ++input_line_pointer;
3421 ppc_stab_symbol = TRUE;
3422 sym = symbol_make (name);
3423 ppc_stab_symbol = FALSE;
3425 symbol_get_tc (sym)->real_name = name;
3427 (void) expression (&exp);
3434 as_bad (_("illegal .stabx expression; zero assumed"));
3435 exp.X_add_number = 0;
3438 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3439 symbol_set_frag (sym, &zero_address_frag);
3443 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3444 symbol_set_value_expression (sym, &exp);
3448 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3449 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3454 /* The value is some complex expression. This will probably
3455 fail at some later point, but this is probably the right
3456 thing to do here. */
3457 symbol_set_value_expression (sym, &exp);
3461 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3462 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3464 if (*input_line_pointer != ',')
3466 as_bad (_("missing class"));
3469 ++input_line_pointer;
3471 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3473 if (*input_line_pointer != ',')
3475 as_bad (_("missing type"));
3478 ++input_line_pointer;
3480 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3482 symbol_get_tc (sym)->output = 1;
3484 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3486 symbol_get_tc (sym)->within = ppc_current_block;
3491 .stabx "z",arrays_,133,0
3494 .comm arrays_,13768,3
3496 resolve_symbol_value will copy the exp's "within" into sym's when the
3497 offset is 0. Since this seems to be corner case problem,
3498 only do the correction for storage class C_STSYM. A better solution
3499 would be to have the tc field updated in ppc_symbol_new_hook. */
3501 if (exp.X_op == O_symbol)
3503 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3507 if (exp.X_op != O_symbol
3508 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3509 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3510 ppc_frob_label (sym);
3513 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3514 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3515 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3516 symbol_get_tc (ppc_current_csect)->within = sym;
3519 demand_empty_rest_of_line ();
3522 /* The .function pseudo-op. This takes several arguments. The first
3523 argument seems to be the external name of the symbol. The second
3524 argument seems to be the label for the start of the function. gcc
3525 uses the same name for both. I have no idea what the third and
3526 fourth arguments are meant to be. The optional fifth argument is
3527 an expression for the size of the function. In COFF this symbol
3528 gets an aux entry like that used for a csect. */
3531 ppc_function (ignore)
3532 int ignore ATTRIBUTE_UNUSED;
3540 name = input_line_pointer;
3541 endc = get_symbol_end ();
3543 /* Ignore any [PR] suffix. */
3544 name = ppc_canonicalize_symbol_name (name);
3545 s = strchr (name, '[');
3546 if (s != (char *) NULL
3547 && strcmp (s + 1, "PR]") == 0)
3550 ext_sym = symbol_find_or_make (name);
3552 *input_line_pointer = endc;
3554 if (*input_line_pointer != ',')
3556 as_bad (_("missing symbol name"));
3557 ignore_rest_of_line ();
3560 ++input_line_pointer;
3562 name = input_line_pointer;
3563 endc = get_symbol_end ();
3565 lab_sym = symbol_find_or_make (name);
3567 *input_line_pointer = endc;
3569 if (ext_sym != lab_sym)
3573 exp.X_op = O_symbol;
3574 exp.X_add_symbol = lab_sym;
3575 exp.X_op_symbol = NULL;
3576 exp.X_add_number = 0;
3578 symbol_set_value_expression (ext_sym, &exp);
3581 if (symbol_get_tc (ext_sym)->class == -1)
3582 symbol_get_tc (ext_sym)->class = XMC_PR;
3583 symbol_get_tc (ext_sym)->output = 1;
3585 if (*input_line_pointer == ',')
3589 /* Ignore the third argument. */
3590 ++input_line_pointer;
3591 expression (&ignore);
3592 if (*input_line_pointer == ',')
3594 /* Ignore the fourth argument. */
3595 ++input_line_pointer;
3596 expression (&ignore);
3597 if (*input_line_pointer == ',')
3599 /* The fifth argument is the function size. */
3600 ++input_line_pointer;
3601 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3604 &zero_address_frag);
3605 pseudo_set (symbol_get_tc (ext_sym)->size);
3610 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3611 SF_SET_FUNCTION (ext_sym);
3612 SF_SET_PROCESS (ext_sym);
3613 coff_add_linesym (ext_sym);
3615 demand_empty_rest_of_line ();
3618 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3619 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3620 with the correct line number */
3622 static symbolS *saved_bi_sym = 0;
3626 int ignore ATTRIBUTE_UNUSED;
3630 sym = symbol_make (".bf");
3631 S_SET_SEGMENT (sym, text_section);
3632 symbol_set_frag (sym, frag_now);
3633 S_SET_VALUE (sym, frag_now_fix ());
3634 S_SET_STORAGE_CLASS (sym, C_FCN);
3636 coff_line_base = get_absolute_expression ();
3638 S_SET_NUMBER_AUXILIARY (sym, 1);
3639 SA_SET_SYM_LNNO (sym, coff_line_base);
3641 /* Line number for bi. */
3644 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3649 symbol_get_tc (sym)->output = 1;
3651 ppc_frob_label (sym);
3653 demand_empty_rest_of_line ();
3656 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3657 ".ef", except that the line number is absolute, not relative to the
3658 most recent ".bf" symbol. */
3662 int ignore ATTRIBUTE_UNUSED;
3666 sym = symbol_make (".ef");
3667 S_SET_SEGMENT (sym, text_section);
3668 symbol_set_frag (sym, frag_now);
3669 S_SET_VALUE (sym, frag_now_fix ());
3670 S_SET_STORAGE_CLASS (sym, C_FCN);
3671 S_SET_NUMBER_AUXILIARY (sym, 1);
3672 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3673 symbol_get_tc (sym)->output = 1;
3675 ppc_frob_label (sym);
3677 demand_empty_rest_of_line ();
3680 /* The .bi and .ei pseudo-ops. These take a string argument and
3681 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3682 the symbol list. The value of .bi will be know when the next .bf
3689 static symbolS *last_biei;
3696 name = demand_copy_C_string (&len);
3698 /* The value of these symbols is actually file offset. Here we set
3699 the value to the index into the line number entries. In
3700 ppc_frob_symbols we set the fix_line field, which will cause BFD
3701 to do the right thing. */
3703 sym = symbol_make (name);
3704 /* obj-coff.c currently only handles line numbers correctly in the
3706 S_SET_SEGMENT (sym, text_section);
3707 S_SET_VALUE (sym, coff_n_line_nos);
3708 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3710 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3711 symbol_get_tc (sym)->output = 1;
3719 for (look = last_biei ? last_biei : symbol_rootP;
3720 (look != (symbolS *) NULL
3721 && (S_GET_STORAGE_CLASS (look) == C_FILE
3722 || S_GET_STORAGE_CLASS (look) == C_BINCL
3723 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3724 look = symbol_next (look))
3726 if (look != (symbolS *) NULL)
3728 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3729 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3733 demand_empty_rest_of_line ();
3736 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3737 There is one argument, which is a csect symbol. The value of the
3738 .bs symbol is the index of this csect symbol. */
3742 int ignore ATTRIBUTE_UNUSED;
3749 if (ppc_current_block != NULL)
3750 as_bad (_("nested .bs blocks"));
3752 name = input_line_pointer;
3753 endc = get_symbol_end ();
3755 csect = symbol_find_or_make (name);
3757 *input_line_pointer = endc;
3759 sym = symbol_make (".bs");
3760 S_SET_SEGMENT (sym, now_seg);
3761 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3762 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3763 symbol_get_tc (sym)->output = 1;
3765 symbol_get_tc (sym)->within = csect;
3767 ppc_frob_label (sym);
3769 ppc_current_block = sym;
3771 demand_empty_rest_of_line ();
3774 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3778 int ignore ATTRIBUTE_UNUSED;
3782 if (ppc_current_block == NULL)
3783 as_bad (_(".es without preceding .bs"));
3785 sym = symbol_make (".es");
3786 S_SET_SEGMENT (sym, now_seg);
3787 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3788 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3789 symbol_get_tc (sym)->output = 1;
3791 ppc_frob_label (sym);
3793 ppc_current_block = NULL;
3795 demand_empty_rest_of_line ();
3798 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3803 int ignore ATTRIBUTE_UNUSED;
3807 sym = symbol_make (".bb");
3808 S_SET_SEGMENT (sym, text_section);
3809 symbol_set_frag (sym, frag_now);
3810 S_SET_VALUE (sym, frag_now_fix ());
3811 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3813 S_SET_NUMBER_AUXILIARY (sym, 1);
3814 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3816 symbol_get_tc (sym)->output = 1;
3818 SF_SET_PROCESS (sym);
3820 ppc_frob_label (sym);
3822 demand_empty_rest_of_line ();
3825 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3830 int ignore ATTRIBUTE_UNUSED;
3834 sym = symbol_make (".eb");
3835 S_SET_SEGMENT (sym, text_section);
3836 symbol_set_frag (sym, frag_now);
3837 S_SET_VALUE (sym, frag_now_fix ());
3838 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3839 S_SET_NUMBER_AUXILIARY (sym, 1);
3840 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3841 symbol_get_tc (sym)->output = 1;
3843 SF_SET_PROCESS (sym);
3845 ppc_frob_label (sym);
3847 demand_empty_rest_of_line ();
3850 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3855 int ignore ATTRIBUTE_UNUSED;
3861 name = demand_copy_C_string (&len);
3862 sym = symbol_make (name);
3863 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3864 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3865 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3866 S_SET_VALUE (sym, 0);
3867 symbol_get_tc (sym)->output = 1;
3869 ppc_frob_label (sym);
3871 demand_empty_rest_of_line ();
3874 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3878 int ignore ATTRIBUTE_UNUSED;
3882 sym = symbol_make (".ec");
3883 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3884 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3885 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3886 S_SET_VALUE (sym, 0);
3887 symbol_get_tc (sym)->output = 1;
3889 ppc_frob_label (sym);
3891 demand_empty_rest_of_line ();
3894 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3898 int ignore ATTRIBUTE_UNUSED;
3900 if (ppc_toc_csect != (symbolS *) NULL)
3901 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3908 subseg = ppc_data_subsegment;
3909 ++ppc_data_subsegment;
3911 subseg_new (segment_name (data_section), subseg);
3912 ppc_toc_frag = frag_now;
3914 sym = symbol_find_or_make ("TOC[TC0]");
3915 symbol_set_frag (sym, frag_now);
3916 S_SET_SEGMENT (sym, data_section);
3917 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3918 symbol_get_tc (sym)->subseg = subseg;
3919 symbol_get_tc (sym)->output = 1;
3920 symbol_get_tc (sym)->within = sym;
3922 ppc_toc_csect = sym;
3924 for (list = ppc_data_csects;
3925 symbol_get_tc (list)->next != (symbolS *) NULL;
3926 list = symbol_get_tc (list)->next)
3928 symbol_get_tc (list)->next = sym;
3930 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3931 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3935 ppc_current_csect = ppc_toc_csect;
3937 demand_empty_rest_of_line ();
3940 /* The AIX assembler automatically aligns the operands of a .long or
3941 .short pseudo-op, and we want to be compatible. */
3944 ppc_xcoff_cons (log_size)
3947 frag_align (log_size, 0, 0);
3948 record_alignment (now_seg, log_size);
3949 cons (1 << log_size);
3954 int dummy ATTRIBUTE_UNUSED;
3959 (void) expression (&exp);
3961 if (exp.X_op != O_constant)
3963 as_bad (_("non-constant byte count"));
3967 byte_count = exp.X_add_number;
3969 if (*input_line_pointer != ',')
3971 as_bad (_("missing value"));
3975 ++input_line_pointer;
3979 #endif /* OBJ_XCOFF */
3980 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3982 /* The .tc pseudo-op. This is used when generating either XCOFF or
3983 ELF. This takes two or more arguments.
3985 When generating XCOFF output, the first argument is the name to
3986 give to this location in the toc; this will be a symbol with class
3987 TC. The rest of the arguments are N-byte values to actually put at
3988 this location in the TOC; often there is just one more argument, a
3989 relocatable symbol reference. The size of the value to store
3990 depends on target word size. A 32-bit target uses 4-byte values, a
3991 64-bit target uses 8-byte values.
3993 When not generating XCOFF output, the arguments are the same, but
3994 the first argument is simply ignored. */
3998 int ignore ATTRIBUTE_UNUSED;
4002 /* Define the TOC symbol name. */
4008 if (ppc_toc_csect == (symbolS *) NULL
4009 || ppc_toc_csect != ppc_current_csect)
4011 as_bad (_(".tc not in .toc section"));
4012 ignore_rest_of_line ();
4016 name = input_line_pointer;
4017 endc = get_symbol_end ();
4019 sym = symbol_find_or_make (name);
4021 *input_line_pointer = endc;
4023 if (S_IS_DEFINED (sym))
4027 label = symbol_get_tc (ppc_current_csect)->within;
4028 if (symbol_get_tc (label)->class != XMC_TC0)
4030 as_bad (_(".tc with no label"));
4031 ignore_rest_of_line ();
4035 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4036 symbol_set_frag (label, symbol_get_frag (sym));
4037 S_SET_VALUE (label, S_GET_VALUE (sym));
4039 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4040 ++input_line_pointer;
4045 S_SET_SEGMENT (sym, now_seg);
4046 symbol_set_frag (sym, frag_now);
4047 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4048 symbol_get_tc (sym)->class = XMC_TC;
4049 symbol_get_tc (sym)->output = 1;
4051 ppc_frob_label (sym);
4054 #endif /* OBJ_XCOFF */
4058 /* Skip the TOC symbol name. */
4059 while (is_part_of_name (*input_line_pointer)
4060 || *input_line_pointer == '['
4061 || *input_line_pointer == ']'
4062 || *input_line_pointer == '{'
4063 || *input_line_pointer == '}')
4064 ++input_line_pointer;
4066 /* Align to a four/eight byte boundary. */
4067 align = ppc_obj64 ? 3 : 2;
4068 frag_align (align, 0, 0);
4069 record_alignment (now_seg, align);
4070 #endif /* OBJ_ELF */
4072 if (*input_line_pointer != ',')
4073 demand_empty_rest_of_line ();
4076 ++input_line_pointer;
4077 cons (ppc_obj64 ? 8 : 4);
4081 /* Pseudo-op .machine. */
4084 ppc_machine (ignore)
4085 int ignore ATTRIBUTE_UNUSED;
4088 #define MAX_HISTORY 100
4089 static unsigned long *cpu_history;
4090 static int curr_hist;
4094 if (*input_line_pointer == '"')
4097 cpu_string = demand_copy_C_string (&len);
4102 cpu_string = input_line_pointer;
4103 c = get_symbol_end ();
4104 cpu_string = xstrdup (cpu_string);
4105 *input_line_pointer = c;
4108 if (cpu_string != NULL)
4110 unsigned long old_cpu = ppc_cpu;
4113 for (p = cpu_string; *p != 0; p++)
4116 if (strcmp (cpu_string, "push") == 0)
4118 if (cpu_history == NULL)
4119 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4121 if (curr_hist >= MAX_HISTORY)
4122 as_bad (_(".machine stack overflow"));
4124 cpu_history[curr_hist++] = ppc_cpu;
4126 else if (strcmp (cpu_string, "pop") == 0)
4129 as_bad (_(".machine stack underflow"));
4131 ppc_cpu = cpu_history[--curr_hist];
4133 else if (parse_cpu (cpu_string))
4136 as_bad (_("invalid machine `%s'"), cpu_string);
4138 if (ppc_cpu != old_cpu)
4139 ppc_setup_opcodes ();
4142 demand_empty_rest_of_line ();
4145 /* See whether a symbol is in the TOC section. */
4148 ppc_is_toc_sym (sym)
4152 return symbol_get_tc (sym)->class == XMC_TC;
4155 const char *sname = segment_name (S_GET_SEGMENT (sym));
4157 return strcmp (sname, ".toc") == 0;
4159 return strcmp (sname, ".got") == 0;
4162 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4166 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4168 /* Set the current section. */
4170 ppc_set_current_section (new)
4173 ppc_previous_section = ppc_current_section;
4174 ppc_current_section = new;
4177 /* pseudo-op: .previous
4178 behaviour: toggles the current section with the previous section.
4180 warnings: "No previous section" */
4183 ppc_previous (ignore)
4184 int ignore ATTRIBUTE_UNUSED;
4188 if (ppc_previous_section == NULL)
4190 as_warn (_("No previous section to return to. Directive ignored."));
4194 subseg_set (ppc_previous_section, 0);
4196 ppc_set_current_section (ppc_previous_section);
4199 /* pseudo-op: .pdata
4200 behaviour: predefined read only data section
4204 initial: .section .pdata "adr3"
4205 a - don't know -- maybe a misprint
4206 d - initialized data
4208 3 - double word aligned (that would be 4 byte boundary)
4211 Tag index tables (also known as the function table) for exception
4212 handling, debugging, etc. */
4216 int ignore ATTRIBUTE_UNUSED;
4218 if (pdata_section == 0)
4220 pdata_section = subseg_new (".pdata", 0);
4222 bfd_set_section_flags (stdoutput, pdata_section,
4223 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4224 | SEC_READONLY | SEC_DATA ));
4226 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4230 pdata_section = subseg_new (".pdata", 0);
4232 ppc_set_current_section (pdata_section);
4235 /* pseudo-op: .ydata
4236 behaviour: predefined read only data section
4240 initial: .section .ydata "drw3"
4241 a - don't know -- maybe a misprint
4242 d - initialized data
4244 3 - double word aligned (that would be 4 byte boundary)
4246 Tag tables (also known as the scope table) for exception handling,
4251 int ignore ATTRIBUTE_UNUSED;
4253 if (ydata_section == 0)
4255 ydata_section = subseg_new (".ydata", 0);
4256 bfd_set_section_flags (stdoutput, ydata_section,
4257 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4258 | SEC_READONLY | SEC_DATA ));
4260 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4264 ydata_section = subseg_new (".ydata", 0);
4266 ppc_set_current_section (ydata_section);
4269 /* pseudo-op: .reldata
4270 behaviour: predefined read write data section
4271 double word aligned (4-byte)
4272 FIXME: relocation is applied to it
4273 FIXME: what's the difference between this and .data?
4276 initial: .section .reldata "drw3"
4277 d - initialized data
4280 3 - double word aligned (that would be 8 byte boundary)
4283 Like .data, but intended to hold data subject to relocation, such as
4284 function descriptors, etc. */
4287 ppc_reldata (ignore)
4288 int ignore ATTRIBUTE_UNUSED;
4290 if (reldata_section == 0)
4292 reldata_section = subseg_new (".reldata", 0);
4294 bfd_set_section_flags (stdoutput, reldata_section,
4295 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4298 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4302 reldata_section = subseg_new (".reldata", 0);
4304 ppc_set_current_section (reldata_section);
4307 /* pseudo-op: .rdata
4308 behaviour: predefined read only data section
4312 initial: .section .rdata "dr3"
4313 d - initialized data
4315 3 - double word aligned (that would be 4 byte boundary) */
4319 int ignore ATTRIBUTE_UNUSED;
4321 if (rdata_section == 0)
4323 rdata_section = subseg_new (".rdata", 0);
4324 bfd_set_section_flags (stdoutput, rdata_section,
4325 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4326 | SEC_READONLY | SEC_DATA ));
4328 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4332 rdata_section = subseg_new (".rdata", 0);
4334 ppc_set_current_section (rdata_section);
4337 /* pseudo-op: .ualong
4338 behaviour: much like .int, with the exception that no alignment is
4340 FIXME: test the alignment statement
4346 int ignore ATTRIBUTE_UNUSED;
4352 /* pseudo-op: .znop <symbol name>
4353 behaviour: Issue a nop instruction
4354 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4355 the supplied symbol name.
4357 warnings: Missing symbol name */
4361 int ignore ATTRIBUTE_UNUSED;
4364 const struct powerpc_opcode *opcode;
4375 /* Strip out the symbol name. */
4376 symbol_name = input_line_pointer;
4377 c = get_symbol_end ();
4379 name = xmalloc (input_line_pointer - symbol_name + 1);
4380 strcpy (name, symbol_name);
4382 sym = symbol_find_or_make (name);
4384 *input_line_pointer = c;
4388 /* Look up the opcode in the hash table. */
4389 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4391 /* Stick in the nop. */
4392 insn = opcode->opcode;
4394 /* Write out the instruction. */
4396 md_number_to_chars (f, insn, 4);
4398 f - frag_now->fr_literal,
4403 BFD_RELOC_16_GOT_PCREL);
4416 register char *name;
4420 register symbolS *symbolP;
4423 name = input_line_pointer;
4424 c = get_symbol_end ();
4426 /* just after name is now '\0'. */
4427 p = input_line_pointer;
4430 if (*input_line_pointer != ',')
4432 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4433 ignore_rest_of_line ();
4437 input_line_pointer++; /* skip ',' */
4438 if ((temp = get_absolute_expression ()) < 0)
4440 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4441 ignore_rest_of_line ();
4447 /* The third argument to .comm is the alignment. */
4448 if (*input_line_pointer != ',')
4452 ++input_line_pointer;
4453 align = get_absolute_expression ();
4456 as_warn (_("ignoring bad alignment"));
4463 symbolP = symbol_find_or_make (name);
4466 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4468 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4469 S_GET_NAME (symbolP));
4470 ignore_rest_of_line ();
4474 if (S_GET_VALUE (symbolP))
4476 if (S_GET_VALUE (symbolP) != (valueT) temp)
4477 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4478 S_GET_NAME (symbolP),
4479 (long) S_GET_VALUE (symbolP),
4484 S_SET_VALUE (symbolP, (valueT) temp);
4485 S_SET_EXTERNAL (symbolP);
4486 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4489 demand_empty_rest_of_line ();
4493 * implement the .section pseudo op:
4494 * .section name {, "flags"}
4496 * | +--- optional flags: 'b' for bss
4498 * +-- section name 'l' for lib
4502 * 'd' (apparently m88k for data)
4504 * But if the argument is not a quoted string, treat it as a
4505 * subsegment number.
4507 * FIXME: this is a copy of the section processing from obj-coff.c, with
4508 * additions/changes for the moto-pas assembler support. There are three
4511 * FIXME: I just noticed this. This doesn't work at all really. It it
4512 * setting bits that bfd probably neither understands or uses. The
4513 * correct approach (?) will have to incorporate extra fields attached
4514 * to the section to hold the system specific stuff. (krk)
4517 * 'a' - unknown - referred to in documentation, but no definition supplied
4518 * 'c' - section has code
4519 * 'd' - section has initialized data
4520 * 'u' - section has uninitialized data
4521 * 'i' - section contains directives (info)
4522 * 'n' - section can be discarded
4523 * 'R' - remove section at link time
4525 * Section Protection:
4526 * 'r' - section is readable
4527 * 'w' - section is writeable
4528 * 'x' - section is executable
4529 * 's' - section is sharable
4531 * Section Alignment:
4532 * '0' - align to byte boundary
4533 * '1' - align to halfword undary
4534 * '2' - align to word boundary
4535 * '3' - align to doubleword boundary
4536 * '4' - align to quadword boundary
4537 * '5' - align to 32 byte boundary
4538 * '6' - align to 64 byte boundary
4543 ppc_pe_section (ignore)
4544 int ignore ATTRIBUTE_UNUSED;
4546 /* Strip out the section name. */
4555 section_name = input_line_pointer;
4556 c = get_symbol_end ();
4558 name = xmalloc (input_line_pointer - section_name + 1);
4559 strcpy (name, section_name);
4561 *input_line_pointer = c;
4566 flags = SEC_NO_FLAGS;
4568 if (strcmp (name, ".idata$2") == 0)
4572 else if (strcmp (name, ".idata$3") == 0)
4576 else if (strcmp (name, ".idata$4") == 0)
4580 else if (strcmp (name, ".idata$5") == 0)
4584 else if (strcmp (name, ".idata$6") == 0)
4589 /* Default alignment to 16 byte boundary. */
4592 if (*input_line_pointer == ',')
4594 ++input_line_pointer;
4596 if (*input_line_pointer != '"')
4597 exp = get_absolute_expression ();
4600 ++input_line_pointer;
4601 while (*input_line_pointer != '"'
4602 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4604 switch (*input_line_pointer)
4606 /* Section Contents */
4607 case 'a': /* unknown */
4608 as_bad (_("Unsupported section attribute -- 'a'"));
4610 case 'c': /* code section */
4613 case 'd': /* section has initialized data */
4616 case 'u': /* section has uninitialized data */
4617 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4621 case 'i': /* section contains directives (info) */
4622 /* FIXME: This is IMAGE_SCN_LNK_INFO
4624 flags |= SEC_HAS_CONTENTS;
4626 case 'n': /* section can be discarded */
4629 case 'R': /* Remove section at link time */
4630 flags |= SEC_NEVER_LOAD;
4633 /* Section Protection */
4634 case 'r': /* section is readable */
4635 flags |= IMAGE_SCN_MEM_READ;
4637 case 'w': /* section is writeable */
4638 flags |= IMAGE_SCN_MEM_WRITE;
4640 case 'x': /* section is executable */
4641 flags |= IMAGE_SCN_MEM_EXECUTE;
4643 case 's': /* section is sharable */
4644 flags |= IMAGE_SCN_MEM_SHARED;
4647 /* Section Alignment */
4648 case '0': /* align to byte boundary */
4649 flags |= IMAGE_SCN_ALIGN_1BYTES;
4652 case '1': /* align to halfword boundary */
4653 flags |= IMAGE_SCN_ALIGN_2BYTES;
4656 case '2': /* align to word boundary */
4657 flags |= IMAGE_SCN_ALIGN_4BYTES;
4660 case '3': /* align to doubleword boundary */
4661 flags |= IMAGE_SCN_ALIGN_8BYTES;
4664 case '4': /* align to quadword boundary */
4665 flags |= IMAGE_SCN_ALIGN_16BYTES;
4668 case '5': /* align to 32 byte boundary */
4669 flags |= IMAGE_SCN_ALIGN_32BYTES;
4672 case '6': /* align to 64 byte boundary */
4673 flags |= IMAGE_SCN_ALIGN_64BYTES;
4678 as_bad (_("unknown section attribute '%c'"),
4679 *input_line_pointer);
4682 ++input_line_pointer;
4684 if (*input_line_pointer == '"')
4685 ++input_line_pointer;
4689 sec = subseg_new (name, (subsegT) exp);
4691 ppc_set_current_section (sec);
4693 if (flags != SEC_NO_FLAGS)
4695 if (! bfd_set_section_flags (stdoutput, sec, flags))
4696 as_bad (_("error setting flags for \"%s\": %s"),
4697 bfd_section_name (stdoutput, sec),
4698 bfd_errmsg (bfd_get_error ()));
4701 bfd_set_section_alignment (stdoutput, sec, align);
4706 ppc_pe_function (ignore)
4707 int ignore ATTRIBUTE_UNUSED;
4713 name = input_line_pointer;
4714 endc = get_symbol_end ();
4716 ext_sym = symbol_find_or_make (name);
4718 *input_line_pointer = endc;
4720 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4721 SF_SET_FUNCTION (ext_sym);
4722 SF_SET_PROCESS (ext_sym);
4723 coff_add_linesym (ext_sym);
4725 demand_empty_rest_of_line ();
4729 ppc_pe_tocd (ignore)
4730 int ignore ATTRIBUTE_UNUSED;
4732 if (tocdata_section == 0)
4734 tocdata_section = subseg_new (".tocd", 0);
4735 /* FIXME: section flags won't work. */
4736 bfd_set_section_flags (stdoutput, tocdata_section,
4737 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4738 | SEC_READONLY | SEC_DATA));
4740 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4744 rdata_section = subseg_new (".tocd", 0);
4747 ppc_set_current_section (tocdata_section);
4749 demand_empty_rest_of_line ();
4752 /* Don't adjust TOC relocs to use the section symbol. */
4755 ppc_pe_fix_adjustable (fix)
4758 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4765 /* XCOFF specific symbol and file handling. */
4767 /* Canonicalize the symbol name. We use the to force the suffix, if
4768 any, to use square brackets, and to be in upper case. */
4771 ppc_canonicalize_symbol_name (name)
4776 if (ppc_stab_symbol)
4779 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4793 for (s++; *s != '\0' && *s != brac; s++)
4796 if (*s == '\0' || s[1] != '\0')
4797 as_bad (_("bad symbol suffix"));
4805 /* Set the class of a symbol based on the suffix, if any. This is
4806 called whenever a new symbol is created. */
4809 ppc_symbol_new_hook (sym)
4812 struct ppc_tc_sy *tc;
4815 tc = symbol_get_tc (sym);
4819 tc->real_name = NULL;
4825 if (ppc_stab_symbol)
4828 s = strchr (S_GET_NAME (sym), '[');
4829 if (s == (const char *) NULL)
4831 /* There is no suffix. */
4840 if (strcmp (s, "BS]") == 0)
4844 if (strcmp (s, "DB]") == 0)
4846 else if (strcmp (s, "DS]") == 0)
4850 if (strcmp (s, "GL]") == 0)
4854 if (strcmp (s, "PR]") == 0)
4858 if (strcmp (s, "RO]") == 0)
4860 else if (strcmp (s, "RW]") == 0)
4864 if (strcmp (s, "SV]") == 0)
4868 if (strcmp (s, "TC]") == 0)
4870 else if (strcmp (s, "TI]") == 0)
4872 else if (strcmp (s, "TB]") == 0)
4874 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4875 tc->class = XMC_TC0;
4878 if (strcmp (s, "UA]") == 0)
4880 else if (strcmp (s, "UC]") == 0)
4884 if (strcmp (s, "XO]") == 0)
4889 if (tc->class == -1)
4890 as_bad (_("Unrecognized symbol suffix"));
4893 /* Set the class of a label based on where it is defined. This
4894 handles symbols without suffixes. Also, move the symbol so that it
4895 follows the csect symbol. */
4898 ppc_frob_label (sym)
4901 if (ppc_current_csect != (symbolS *) NULL)
4903 if (symbol_get_tc (sym)->class == -1)
4904 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4906 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4907 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4908 &symbol_rootP, &symbol_lastP);
4909 symbol_get_tc (ppc_current_csect)->within = sym;
4913 dwarf2_emit_label (sym);
4917 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4918 seen. It tells ppc_adjust_symtab whether it needs to look through
4921 static bfd_boolean ppc_saw_abs;
4923 /* Change the name of a symbol just before writing it out. Set the
4924 real name if the .rename pseudo-op was used. Otherwise, remove any
4925 class suffix. Return 1 if the symbol should not be included in the
4929 ppc_frob_symbol (sym)
4932 static symbolS *ppc_last_function;
4933 static symbolS *set_end;
4935 /* Discard symbols that should not be included in the output symbol
4937 if (! symbol_used_in_reloc_p (sym)
4938 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4939 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4940 && ! symbol_get_tc (sym)->output
4941 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4944 /* This one will disappear anyway. Don't make a csect sym for it. */
4945 if (sym == abs_section_sym)
4948 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4949 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4955 name = S_GET_NAME (sym);
4956 s = strchr (name, '[');
4957 if (s != (char *) NULL)
4963 snew = xmalloc (len + 1);
4964 memcpy (snew, name, len);
4967 S_SET_NAME (sym, snew);
4971 if (set_end != (symbolS *) NULL)
4973 SA_SET_SYM_ENDNDX (set_end, sym);
4977 if (SF_GET_FUNCTION (sym))
4979 if (ppc_last_function != (symbolS *) NULL)
4980 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4981 ppc_last_function = sym;
4982 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4984 resolve_symbol_value (symbol_get_tc (sym)->size);
4985 SA_SET_SYM_FSIZE (sym,
4986 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4989 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4990 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4992 if (ppc_last_function == (symbolS *) NULL)
4993 as_bad (_(".ef with no preceding .function"));
4996 set_end = ppc_last_function;
4997 ppc_last_function = NULL;
4999 /* We don't have a C_EFCN symbol, but we need to force the
5000 COFF backend to believe that it has seen one. */
5001 coff_last_function = NULL;
5005 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5006 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5007 && S_GET_STORAGE_CLASS (sym) != C_FILE
5008 && S_GET_STORAGE_CLASS (sym) != C_FCN
5009 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5010 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5011 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5012 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5013 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5014 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5015 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5017 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5018 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5021 union internal_auxent *a;
5023 /* Create a csect aux. */
5024 i = S_GET_NUMBER_AUXILIARY (sym);
5025 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5026 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5027 if (symbol_get_tc (sym)->class == XMC_TC0)
5029 /* This is the TOC table. */
5030 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5031 a->x_csect.x_scnlen.l = 0;
5032 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5034 else if (symbol_get_tc (sym)->subseg != 0)
5036 /* This is a csect symbol. x_scnlen is the size of the
5038 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5039 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5040 S_GET_SEGMENT (sym))
5041 - S_GET_VALUE (sym));
5044 resolve_symbol_value (symbol_get_tc (sym)->next);
5045 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5046 - S_GET_VALUE (sym));
5048 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5050 else if (S_GET_SEGMENT (sym) == bss_section)
5052 /* This is a common symbol. */
5053 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5054 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5055 if (S_IS_EXTERNAL (sym))
5056 symbol_get_tc (sym)->class = XMC_RW;
5058 symbol_get_tc (sym)->class = XMC_BS;
5060 else if (S_GET_SEGMENT (sym) == absolute_section)
5062 /* This is an absolute symbol. The csect will be created by
5063 ppc_adjust_symtab. */
5065 a->x_csect.x_smtyp = XTY_LD;
5066 if (symbol_get_tc (sym)->class == -1)
5067 symbol_get_tc (sym)->class = XMC_XO;
5069 else if (! S_IS_DEFINED (sym))
5071 /* This is an external symbol. */
5072 a->x_csect.x_scnlen.l = 0;
5073 a->x_csect.x_smtyp = XTY_ER;
5075 else if (symbol_get_tc (sym)->class == XMC_TC)
5079 /* This is a TOC definition. x_scnlen is the size of the
5081 next = symbol_next (sym);
5082 while (symbol_get_tc (next)->class == XMC_TC0)
5083 next = symbol_next (next);
5084 if (next == (symbolS *) NULL
5085 || symbol_get_tc (next)->class != XMC_TC)
5087 if (ppc_after_toc_frag == (fragS *) NULL)
5088 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5090 - S_GET_VALUE (sym));
5092 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5093 - S_GET_VALUE (sym));
5097 resolve_symbol_value (next);
5098 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5099 - S_GET_VALUE (sym));
5101 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5107 /* This is a normal symbol definition. x_scnlen is the
5108 symbol index of the containing csect. */
5109 if (S_GET_SEGMENT (sym) == text_section)
5110 csect = ppc_text_csects;
5111 else if (S_GET_SEGMENT (sym) == data_section)
5112 csect = ppc_data_csects;
5116 /* Skip the initial dummy symbol. */
5117 csect = symbol_get_tc (csect)->next;
5119 if (csect == (symbolS *) NULL)
5121 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5122 a->x_csect.x_scnlen.l = 0;
5126 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5128 resolve_symbol_value (symbol_get_tc (csect)->next);
5129 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5130 > S_GET_VALUE (sym))
5132 csect = symbol_get_tc (csect)->next;
5135 a->x_csect.x_scnlen.p =
5136 coffsymbol (symbol_get_bfdsym (csect))->native;
5137 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5140 a->x_csect.x_smtyp = XTY_LD;
5143 a->x_csect.x_parmhash = 0;
5144 a->x_csect.x_snhash = 0;
5145 if (symbol_get_tc (sym)->class == -1)
5146 a->x_csect.x_smclas = XMC_PR;
5148 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5149 a->x_csect.x_stab = 0;
5150 a->x_csect.x_snstab = 0;
5152 /* Don't let the COFF backend resort these symbols. */
5153 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5155 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5157 /* We want the value to be the symbol index of the referenced
5158 csect symbol. BFD will do that for us if we set the right
5160 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5161 combined_entry_type *c = coffsymbol (bsym)->native;
5163 S_SET_VALUE (sym, (valueT) (size_t) c);
5164 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5166 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5171 /* The value is the offset from the enclosing csect. */
5172 block = symbol_get_tc (sym)->within;
5173 csect = symbol_get_tc (block)->within;
5174 resolve_symbol_value (csect);
5175 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5177 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5178 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5180 /* We want the value to be a file offset into the line numbers.
5181 BFD will do that for us if we set the right flags. We have
5182 already set the value correctly. */
5183 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5189 /* Adjust the symbol table. This creates csect symbols for all
5190 absolute symbols. */
5193 ppc_adjust_symtab ()
5200 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5204 union internal_auxent *a;
5206 if (S_GET_SEGMENT (sym) != absolute_section)
5209 csect = symbol_create (".abs[XO]", absolute_section,
5210 S_GET_VALUE (sym), &zero_address_frag);
5211 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5212 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5213 i = S_GET_NUMBER_AUXILIARY (csect);
5214 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5215 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5216 a->x_csect.x_scnlen.l = 0;
5217 a->x_csect.x_smtyp = XTY_SD;
5218 a->x_csect.x_parmhash = 0;
5219 a->x_csect.x_snhash = 0;
5220 a->x_csect.x_smclas = XMC_XO;
5221 a->x_csect.x_stab = 0;
5222 a->x_csect.x_snstab = 0;
5224 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5226 i = S_GET_NUMBER_AUXILIARY (sym);
5227 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5228 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5229 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5232 ppc_saw_abs = FALSE;
5235 /* Set the VMA for a section. This is called on all the sections in
5239 ppc_frob_section (sec)
5242 static bfd_vma vma = 0;
5244 vma = md_section_align (sec, vma);
5245 bfd_set_section_vma (stdoutput, sec, vma);
5246 vma += bfd_section_size (stdoutput, sec);
5249 #endif /* OBJ_XCOFF */
5251 /* Turn a string in input_line_pointer into a floating point constant
5252 of type TYPE, and store the appropriate bytes in *LITP. The number
5253 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5254 returned, or NULL on OK. */
5257 md_atof (type, litp, sizep)
5263 LITTLENUM_TYPE words[4];
5279 return _("bad call to md_atof");
5282 t = atof_ieee (input_line_pointer, type, words);
5284 input_line_pointer = t;
5288 if (target_big_endian)
5290 for (i = 0; i < prec; i++)
5292 md_number_to_chars (litp, (valueT) words[i], 2);
5298 for (i = prec - 1; i >= 0; i--)
5300 md_number_to_chars (litp, (valueT) words[i], 2);
5308 /* Write a value out to the object file, using the appropriate
5312 md_number_to_chars (buf, val, n)
5317 if (target_big_endian)
5318 number_to_chars_bigendian (buf, val, n);
5320 number_to_chars_littleendian (buf, val, n);
5323 /* Align a section (I don't know why this is machine dependent). */
5326 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5331 int align = bfd_get_section_alignment (stdoutput, seg);
5333 return ((addr + (1 << align) - 1) & (-1 << align));
5337 /* We don't have any form of relaxing. */
5340 md_estimate_size_before_relax (fragp, seg)
5341 fragS *fragp ATTRIBUTE_UNUSED;
5342 asection *seg ATTRIBUTE_UNUSED;
5348 /* Convert a machine dependent frag. We never generate these. */
5351 md_convert_frag (abfd, sec, fragp)
5352 bfd *abfd ATTRIBUTE_UNUSED;
5353 asection *sec ATTRIBUTE_UNUSED;
5354 fragS *fragp ATTRIBUTE_UNUSED;
5359 /* We have no need to default values of symbols. */
5362 md_undefined_symbol (name)
5363 char *name ATTRIBUTE_UNUSED;
5368 /* Functions concerning relocs. */
5370 /* The location from which a PC relative jump should be calculated,
5371 given a PC relative reloc. */
5374 md_pcrel_from_section (fixp, sec)
5376 segT sec ATTRIBUTE_UNUSED;
5378 return fixp->fx_frag->fr_address + fixp->fx_where;
5383 /* This is called to see whether a fixup should be adjusted to use a
5384 section symbol. We take the opportunity to change a fixup against
5385 a symbol in the TOC subsegment into a reloc against the
5386 corresponding .tc symbol. */
5389 ppc_fix_adjustable (fix)
5392 valueT val = resolve_symbol_value (fix->fx_addsy);
5393 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5394 TC_SYMFIELD_TYPE *tc;
5396 if (symseg == absolute_section)
5399 if (ppc_toc_csect != (symbolS *) NULL
5400 && fix->fx_addsy != ppc_toc_csect
5401 && symseg == data_section
5402 && val >= ppc_toc_frag->fr_address
5403 && (ppc_after_toc_frag == (fragS *) NULL
5404 || val < ppc_after_toc_frag->fr_address))
5408 for (sy = symbol_next (ppc_toc_csect);
5409 sy != (symbolS *) NULL;
5410 sy = symbol_next (sy))
5412 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5414 if (sy_tc->class == XMC_TC0)
5416 if (sy_tc->class != XMC_TC)
5418 if (val == resolve_symbol_value (sy))
5421 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5426 as_bad_where (fix->fx_file, fix->fx_line,
5427 _("symbol in .toc does not match any .tc"));
5430 /* Possibly adjust the reloc to be against the csect. */
5431 tc = symbol_get_tc (fix->fx_addsy);
5433 && tc->class != XMC_TC0
5434 && tc->class != XMC_TC
5435 && symseg != bss_section
5436 /* Don't adjust if this is a reloc in the toc section. */
5437 && (symseg != data_section
5438 || ppc_toc_csect == NULL
5439 || val < ppc_toc_frag->fr_address
5440 || (ppc_after_toc_frag != NULL
5441 && val >= ppc_after_toc_frag->fr_address)))
5444 symbolS *next_csect;
5446 if (symseg == text_section)
5447 csect = ppc_text_csects;
5448 else if (symseg == data_section)
5449 csect = ppc_data_csects;
5453 /* Skip the initial dummy symbol. */
5454 csect = symbol_get_tc (csect)->next;
5456 if (csect != (symbolS *) NULL)
5458 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5459 && (symbol_get_frag (next_csect)->fr_address <= val))
5461 /* If the csect address equals the symbol value, then we
5462 have to look through the full symbol table to see
5463 whether this is the csect we want. Note that we will
5464 only get here if the csect has zero length. */
5465 if (symbol_get_frag (csect)->fr_address == val
5466 && S_GET_VALUE (csect) == val)
5470 for (scan = symbol_next (csect);
5472 scan = symbol_next (scan))
5474 if (symbol_get_tc (scan)->subseg != 0)
5476 if (scan == fix->fx_addsy)
5480 /* If we found the symbol before the next csect
5481 symbol, then this is the csect we want. */
5482 if (scan == fix->fx_addsy)
5489 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5490 fix->fx_addsy = csect;
5495 /* Adjust a reloc against a .lcomm symbol to be against the base
5497 if (symseg == bss_section
5498 && ! S_IS_EXTERNAL (fix->fx_addsy))
5500 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5502 fix->fx_offset += val - resolve_symbol_value (sy);
5509 /* A reloc from one csect to another must be kept. The assembler
5510 will, of course, keep relocs between sections, and it will keep
5511 absolute relocs, but we need to force it to keep PC relative relocs
5512 between two csects in the same section. */
5515 ppc_force_relocation (fix)
5518 /* At this point fix->fx_addsy should already have been converted to
5519 a csect symbol. If the csect does not include the fragment, then
5520 we need to force the relocation. */
5522 && fix->fx_addsy != NULL
5523 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5524 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5525 > fix->fx_frag->fr_address)
5526 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5527 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5528 <= fix->fx_frag->fr_address))))
5531 return generic_force_reloc (fix);
5534 #endif /* OBJ_XCOFF */
5537 /* If this function returns non-zero, it guarantees that a relocation
5538 will be emitted for a fixup. */
5541 ppc_force_relocation (fix)
5544 /* Branch prediction relocations must force a relocation, as must
5545 the vtable description relocs. */
5546 switch (fix->fx_r_type)
5548 case BFD_RELOC_PPC_B16_BRTAKEN:
5549 case BFD_RELOC_PPC_B16_BRNTAKEN:
5550 case BFD_RELOC_PPC_BA16_BRTAKEN:
5551 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5552 case BFD_RELOC_24_PLT_PCREL:
5553 case BFD_RELOC_PPC64_TOC:
5559 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5560 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5563 return generic_force_reloc (fix);
5567 ppc_fix_adjustable (fix)
5570 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5571 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5572 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5573 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5574 && fix->fx_r_type != BFD_RELOC_GPREL16
5575 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5576 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5577 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5578 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5582 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5583 rs_align_code frag. */
5586 ppc_handle_align (struct frag *fragP)
5588 valueT count = (fragP->fr_next->fr_address
5589 - (fragP->fr_address + fragP->fr_fix));
5591 if (count != 0 && (count & 3) == 0)
5593 char *dest = fragP->fr_literal + fragP->fr_fix;
5596 md_number_to_chars (dest, 0x60000000, 4);
5598 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0)
5600 /* For power6, we want the last nop to be a group terminating
5601 one, "ori 1,1,0". Do this by inserting an rs_fill frag
5602 immediately after this one, with its address set to the last
5603 nop location. This will automatically reduce the number of
5604 nops in the current frag by one. */
5607 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5609 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5610 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5611 group_nop->fr_fix = 0;
5612 group_nop->fr_offset = 1;
5613 group_nop->fr_type = rs_fill;
5614 fragP->fr_next = group_nop;
5615 dest = group_nop->fr_literal;
5618 md_number_to_chars (dest, 0x60210000, 4);
5623 /* Apply a fixup to the object code. This is called for all the
5624 fixups we generated by the call to fix_new_exp, above. In the call
5625 above we used a reloc code which was the largest legal reloc code
5626 plus the operand index. Here we undo that to recover the operand
5627 index. At this point all symbol values should be fully resolved,
5628 and we attempt to completely resolve the reloc. If we can not do
5629 that, we determine the correct reloc code and put it back in the
5633 md_apply_fix (fixP, valP, seg)
5636 segT seg ATTRIBUTE_UNUSED;
5638 valueT value = * valP;
5641 if (fixP->fx_addsy != NULL)
5643 /* Hack around bfd_install_relocation brain damage. */
5645 value += fixP->fx_frag->fr_address + fixP->fx_where;
5650 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5651 the symbol values. If we are doing this relocation the code in
5652 write.c is going to call bfd_install_relocation, which is also
5653 going to use the symbol value. That means that if the reloc is
5654 fully resolved we want to use *valP since bfd_install_relocation is
5656 However, if the reloc is not fully resolved we do not want to use
5657 *valP, and must use fx_offset instead. However, if the reloc
5658 is PC relative, we do want to use *valP since it includes the
5659 result of md_pcrel_from. This is confusing. */
5660 if (fixP->fx_addsy == (symbolS *) NULL)
5663 else if (fixP->fx_pcrel)
5667 value = fixP->fx_offset;
5670 if (fixP->fx_subsy != (symbolS *) NULL)
5672 /* We can't actually support subtracting a symbol. */
5673 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5676 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5679 const struct powerpc_operand *operand;
5683 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5685 operand = &powerpc_operands[opindex];
5688 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5689 does not generate a reloc. It uses the offset of `sym' within its
5690 csect. Other usages, such as `.long sym', generate relocs. This
5691 is the documented behaviour of non-TOC symbols. */
5692 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5693 && (operand->bitm & 0xfff0) == 0xfff0
5694 && operand->shift == 0
5695 && (operand->insert == NULL || ppc_obj64)
5696 && fixP->fx_addsy != NULL
5697 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5698 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5699 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5700 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5702 value = fixP->fx_offset;
5707 /* Fetch the instruction, insert the fully resolved operand
5708 value, and stuff the instruction back again. */
5709 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5710 if (target_big_endian)
5711 insn = bfd_getb32 ((unsigned char *) where);
5713 insn = bfd_getl32 ((unsigned char *) where);
5714 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5715 fixP->fx_file, fixP->fx_line);
5716 if (target_big_endian)
5717 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5719 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5722 /* Nothing else to do here. */
5725 assert (fixP->fx_addsy != NULL);
5727 /* Determine a BFD reloc value based on the operand information.
5728 We are only prepared to turn a few of the operands into
5730 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5731 && operand->bitm == 0x3fffffc
5732 && operand->shift == 0)
5733 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5734 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5735 && operand->bitm == 0xfffc
5736 && operand->shift == 0)
5738 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5741 if (target_big_endian)
5742 fixP->fx_where += 2;
5745 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5746 && operand->bitm == 0x3fffffc
5747 && operand->shift == 0)
5748 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5749 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5750 && operand->bitm == 0xfffc
5751 && operand->shift == 0)
5753 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5756 if (target_big_endian)
5757 fixP->fx_where += 2;
5760 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5761 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5762 && (operand->bitm & 0xfff0) == 0xfff0
5763 && operand->shift == 0)
5765 if (ppc_is_toc_sym (fixP->fx_addsy))
5767 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5770 && (operand->flags & PPC_OPERAND_DS) != 0)
5771 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5776 fixP->fx_r_type = BFD_RELOC_16;
5779 && (operand->flags & PPC_OPERAND_DS) != 0)
5780 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5784 if (target_big_endian)
5785 fixP->fx_where += 2;
5787 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5793 /* Use expr_symbol_where to see if this is an expression
5795 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5796 as_bad_where (fixP->fx_file, fixP->fx_line,
5797 _("unresolved expression that must be resolved"));
5799 as_bad_where (fixP->fx_file, fixP->fx_line,
5800 _("unsupported relocation against %s"),
5801 S_GET_NAME (fixP->fx_addsy));
5809 ppc_elf_validate_fix (fixP, seg);
5811 switch (fixP->fx_r_type)
5813 case BFD_RELOC_CTOR:
5820 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5824 case BFD_RELOC_32_PCREL:
5825 case BFD_RELOC_PPC_EMB_NADDR32:
5826 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5833 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5836 case BFD_RELOC_64_PCREL:
5837 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5841 case BFD_RELOC_GPREL16:
5842 case BFD_RELOC_16_GOT_PCREL:
5843 case BFD_RELOC_16_GOTOFF:
5844 case BFD_RELOC_LO16_GOTOFF:
5845 case BFD_RELOC_HI16_GOTOFF:
5846 case BFD_RELOC_HI16_S_GOTOFF:
5847 case BFD_RELOC_16_BASEREL:
5848 case BFD_RELOC_LO16_BASEREL:
5849 case BFD_RELOC_HI16_BASEREL:
5850 case BFD_RELOC_HI16_S_BASEREL:
5851 case BFD_RELOC_PPC_EMB_NADDR16:
5852 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5853 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5854 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5855 case BFD_RELOC_PPC_EMB_SDAI16:
5856 case BFD_RELOC_PPC_EMB_SDA2REL:
5857 case BFD_RELOC_PPC_EMB_SDA2I16:
5858 case BFD_RELOC_PPC_EMB_RELSEC16:
5859 case BFD_RELOC_PPC_EMB_RELST_LO:
5860 case BFD_RELOC_PPC_EMB_RELST_HI:
5861 case BFD_RELOC_PPC_EMB_RELST_HA:
5862 case BFD_RELOC_PPC_EMB_RELSDA:
5863 case BFD_RELOC_PPC_TOC16:
5865 case BFD_RELOC_PPC64_TOC16_LO:
5866 case BFD_RELOC_PPC64_TOC16_HI:
5867 case BFD_RELOC_PPC64_TOC16_HA:
5871 if (fixP->fx_addsy != NULL)
5872 as_bad_where (fixP->fx_file, fixP->fx_line,
5873 _("cannot emit PC relative %s relocation against %s"),
5874 bfd_get_reloc_code_name (fixP->fx_r_type),
5875 S_GET_NAME (fixP->fx_addsy));
5877 as_bad_where (fixP->fx_file, fixP->fx_line,
5878 _("cannot emit PC relative %s relocation"),
5879 bfd_get_reloc_code_name (fixP->fx_r_type));
5882 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5888 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5891 case BFD_RELOC_16_PCREL:
5892 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5896 case BFD_RELOC_LO16:
5898 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5901 case BFD_RELOC_LO16_PCREL:
5902 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5906 /* This case happens when you write, for example,
5908 where L1 and L2 are defined later. */
5909 case BFD_RELOC_HI16:
5911 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5914 case BFD_RELOC_HI16_PCREL:
5915 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5919 case BFD_RELOC_HI16_S:
5921 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5924 case BFD_RELOC_HI16_S_PCREL:
5925 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5930 case BFD_RELOC_PPC64_HIGHER:
5933 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5934 PPC_HIGHER (value), 2);
5937 case BFD_RELOC_PPC64_HIGHER_S:
5940 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5941 PPC_HIGHERA (value), 2);
5944 case BFD_RELOC_PPC64_HIGHEST:
5947 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5948 PPC_HIGHEST (value), 2);
5951 case BFD_RELOC_PPC64_HIGHEST_S:
5954 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5955 PPC_HIGHESTA (value), 2);
5958 case BFD_RELOC_PPC64_ADDR16_DS:
5959 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5960 case BFD_RELOC_PPC64_GOT16_DS:
5961 case BFD_RELOC_PPC64_GOT16_LO_DS:
5962 case BFD_RELOC_PPC64_PLT16_LO_DS:
5963 case BFD_RELOC_PPC64_SECTOFF_DS:
5964 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5965 case BFD_RELOC_PPC64_TOC16_DS:
5966 case BFD_RELOC_PPC64_TOC16_LO_DS:
5967 case BFD_RELOC_PPC64_PLTGOT16_DS:
5968 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5972 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5973 unsigned long val, mask;
5975 if (target_big_endian)
5976 val = bfd_getb32 (where - 2);
5978 val = bfd_getl32 (where);
5980 /* lq insns reserve the four lsbs. */
5981 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5982 && (val & (0x3f << 26)) == (56u << 26))
5984 val |= value & mask;
5985 if (target_big_endian)
5986 bfd_putb16 ((bfd_vma) val, where);
5988 bfd_putl16 ((bfd_vma) val, where);
5992 case BFD_RELOC_PPC_B16_BRTAKEN:
5993 case BFD_RELOC_PPC_B16_BRNTAKEN:
5994 case BFD_RELOC_PPC_BA16_BRTAKEN:
5995 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5998 case BFD_RELOC_PPC_TLS:
6001 case BFD_RELOC_PPC_DTPMOD:
6002 case BFD_RELOC_PPC_TPREL16:
6003 case BFD_RELOC_PPC_TPREL16_LO:
6004 case BFD_RELOC_PPC_TPREL16_HI:
6005 case BFD_RELOC_PPC_TPREL16_HA:
6006 case BFD_RELOC_PPC_TPREL:
6007 case BFD_RELOC_PPC_DTPREL16:
6008 case BFD_RELOC_PPC_DTPREL16_LO:
6009 case BFD_RELOC_PPC_DTPREL16_HI:
6010 case BFD_RELOC_PPC_DTPREL16_HA:
6011 case BFD_RELOC_PPC_DTPREL:
6012 case BFD_RELOC_PPC_GOT_TLSGD16:
6013 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6014 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6015 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6016 case BFD_RELOC_PPC_GOT_TLSLD16:
6017 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6018 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6019 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6020 case BFD_RELOC_PPC_GOT_TPREL16:
6021 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6022 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6023 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6024 case BFD_RELOC_PPC_GOT_DTPREL16:
6025 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6026 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6027 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6028 case BFD_RELOC_PPC64_TPREL16_DS:
6029 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6030 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6031 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6032 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6033 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6034 case BFD_RELOC_PPC64_DTPREL16_DS:
6035 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6036 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6037 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6038 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6039 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6040 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6043 /* Because SDA21 modifies the register field, the size is set to 4
6044 bytes, rather than 2, so offset it here appropriately. */
6045 case BFD_RELOC_PPC_EMB_SDA21:
6049 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6050 + ((target_big_endian) ? 2 : 0),
6057 /* This can occur if there is a bug in the input assembler, eg:
6058 ".byte <undefined_symbol> - ." */
6060 as_bad (_("Unable to handle reference to symbol %s"),
6061 S_GET_NAME (fixP->fx_addsy));
6063 as_bad (_("Unable to resolve expression"));
6067 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6071 case BFD_RELOC_24_PLT_PCREL:
6072 case BFD_RELOC_PPC_LOCAL24PC:
6073 if (!fixP->fx_pcrel && !fixP->fx_done)
6081 /* Fetch the instruction, insert the fully resolved operand
6082 value, and stuff the instruction back again. */
6083 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6084 if (target_big_endian)
6085 insn = bfd_getb32 ((unsigned char *) where);
6087 insn = bfd_getl32 ((unsigned char *) where);
6088 if ((value & 3) != 0)
6089 as_bad_where (fixP->fx_file, fixP->fx_line,
6090 _("must branch to an address a multiple of 4"));
6091 if ((offsetT) value < -0x40000000
6092 || (offsetT) value >= 0x40000000)
6093 as_bad_where (fixP->fx_file, fixP->fx_line,
6094 _("@local or @plt branch destination is too far away, %ld bytes"),
6096 insn = insn | (value & 0x03fffffc);
6097 if (target_big_endian)
6098 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6100 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6104 case BFD_RELOC_VTABLE_INHERIT:
6107 && !S_IS_DEFINED (fixP->fx_addsy)
6108 && !S_IS_WEAK (fixP->fx_addsy))
6109 S_SET_WEAK (fixP->fx_addsy);
6112 case BFD_RELOC_VTABLE_ENTRY:
6117 /* Generated by reference to `sym@tocbase'. The sym is
6118 ignored by the linker. */
6119 case BFD_RELOC_PPC64_TOC:
6125 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6132 fixP->fx_addnumber = value;
6134 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6135 from the section contents. If we are going to be emitting a reloc
6136 then the section contents are immaterial, so don't warn if they
6137 happen to overflow. Leave such warnings to ld. */
6139 fixP->fx_no_overflow = 1;
6141 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6142 fixP->fx_addnumber = 0;
6146 fixP->fx_addnumber = 0;
6148 /* We want to use the offset within the data segment of the
6149 symbol, not the actual VMA of the symbol. */
6150 fixP->fx_addnumber =
6151 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
6157 /* Generate a reloc for a fixup. */
6160 tc_gen_reloc (seg, fixp)
6161 asection *seg ATTRIBUTE_UNUSED;
6166 reloc = (arelent *) xmalloc (sizeof (arelent));
6168 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6169 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6170 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6171 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6172 if (reloc->howto == (reloc_howto_type *) NULL)
6174 as_bad_where (fixp->fx_file, fixp->fx_line,
6175 _("reloc %d not supported by object file format"),
6176 (int) fixp->fx_r_type);
6179 reloc->addend = fixp->fx_addnumber;
6185 ppc_cfi_frame_initial_instructions ()
6187 cfi_add_CFA_def_cfa (1, 0);
6191 tc_ppc_regname_to_dw2regnum (char *regname)
6193 unsigned int regnum = -1;
6197 static struct { char *name; int dw2regnum; } regnames[] =
6199 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6200 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6201 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6202 { "spe_acc", 111 }, { "spefscr", 112 }
6205 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6206 if (strcmp (regnames[i].name, regname) == 0)
6207 return regnames[i].dw2regnum;
6209 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6211 p = regname + 1 + (regname[1] == '.');
6212 regnum = strtoul (p, &q, 10);
6213 if (p == q || *q || regnum >= 32)
6215 if (regname[0] == 'f')
6217 else if (regname[0] == 'v')
6220 else if (regname[0] == 'c' && regname[1] == 'r')
6222 p = regname + 2 + (regname[2] == '.');
6223 if (p[0] < '0' || p[0] > '7' || p[1])
6225 regnum = p[0] - '0' + 68;