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 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
25 #include "safe-ctype.h"
27 #include "dw2gencfi.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
39 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
41 /* Tell the main code what the endianness is. */
42 extern int target_big_endian;
44 /* Whether or not, we've set target_big_endian. */
45 static int set_target_endian = 0;
47 /* Whether to use user friendly register names. */
48 #ifndef TARGET_REG_NAMES_P
50 #define TARGET_REG_NAMES_P TRUE
52 #define TARGET_REG_NAMES_P FALSE
56 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
59 /* #lo(value) denotes the least significant 16 bits of the indicated. */
60 #define PPC_LO(v) ((v) & 0xffff)
62 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
63 #define PPC_HI(v) (((v) >> 16) & 0xffff)
65 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
66 the indicated value, compensating for #lo() being treated as a
68 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
70 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
71 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
73 /* #highera(value) denotes bits 32 through 47 of the indicated value,
74 compensating for #lo() being treated as a signed number. */
75 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
77 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
78 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
80 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
81 compensating for #lo being treated as a signed number. */
82 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
84 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
86 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
88 static bfd_boolean register_name PARAMS ((expressionS *));
89 static void ppc_set_cpu PARAMS ((void));
90 static unsigned long ppc_insert_operand
91 PARAMS ((unsigned long insn, const struct powerpc_operand *operand,
92 offsetT val, char *file, unsigned int line));
93 static void ppc_macro PARAMS ((char *str, const struct powerpc_macro *macro));
94 static void ppc_byte PARAMS ((int));
96 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
97 static int ppc_is_toc_sym PARAMS ((symbolS *sym));
98 static void ppc_tc PARAMS ((int));
99 static void ppc_machine PARAMS ((int));
103 static void ppc_comm PARAMS ((int));
104 static void ppc_bb PARAMS ((int));
105 static void ppc_bc PARAMS ((int));
106 static void ppc_bf PARAMS ((int));
107 static void ppc_biei PARAMS ((int));
108 static void ppc_bs PARAMS ((int));
109 static void ppc_eb PARAMS ((int));
110 static void ppc_ec PARAMS ((int));
111 static void ppc_ef PARAMS ((int));
112 static void ppc_es PARAMS ((int));
113 static void ppc_csect PARAMS ((int));
114 static void ppc_change_csect PARAMS ((symbolS *, offsetT));
115 static void ppc_function PARAMS ((int));
116 static void ppc_extern PARAMS ((int));
117 static void ppc_lglobl PARAMS ((int));
118 static void ppc_section PARAMS ((int));
119 static void ppc_named_section PARAMS ((int));
120 static void ppc_stabx PARAMS ((int));
121 static void ppc_rename PARAMS ((int));
122 static void ppc_toc PARAMS ((int));
123 static void ppc_xcoff_cons PARAMS ((int));
124 static void ppc_vbyte PARAMS ((int));
128 static bfd_reloc_code_real_type ppc_elf_suffix PARAMS ((char **, expressionS *));
129 static void ppc_elf_cons PARAMS ((int));
130 static void ppc_elf_rdata PARAMS ((int));
131 static void ppc_elf_lcomm PARAMS ((int));
132 static void ppc_elf_validate_fix PARAMS ((fixS *, segT));
133 static void ppc_apuinfo_section_add PARAMS ((unsigned int apu, unsigned int version));
137 static void ppc_set_current_section PARAMS ((segT));
138 static void ppc_previous PARAMS ((int));
139 static void ppc_pdata PARAMS ((int));
140 static void ppc_ydata PARAMS ((int));
141 static void ppc_reldata PARAMS ((int));
142 static void ppc_rdata PARAMS ((int));
143 static void ppc_ualong PARAMS ((int));
144 static void ppc_znop PARAMS ((int));
145 static void ppc_pe_comm PARAMS ((int));
146 static void ppc_pe_section PARAMS ((int));
147 static void ppc_pe_function PARAMS ((int));
148 static void ppc_pe_tocd PARAMS ((int));
151 /* Generic assembler global variables which must be defined by all
155 /* This string holds the chars that always start a comment. If the
156 pre-processor is disabled, these aren't very useful. The macro
157 tc_comment_chars points to this. We use this, rather than the
158 usual comment_chars, so that we can switch for Solaris conventions. */
159 static const char ppc_solaris_comment_chars[] = "#!";
160 static const char ppc_eabi_comment_chars[] = "#";
162 #ifdef TARGET_SOLARIS_COMMENT
163 const char *ppc_comment_chars = ppc_solaris_comment_chars;
165 const char *ppc_comment_chars = ppc_eabi_comment_chars;
168 const char comment_chars[] = "#";
171 /* Characters which start a comment at the beginning of a line. */
172 const char line_comment_chars[] = "#";
174 /* Characters which may be used to separate multiple commands on a
176 const char line_separator_chars[] = ";";
178 /* Characters which are used to indicate an exponent in a floating
180 const char EXP_CHARS[] = "eE";
182 /* Characters which mean that a number is a floating point constant,
184 const char FLT_CHARS[] = "dD";
186 /* '+' and '-' can be used as postfix predicate predictors for conditional
187 branches. So they need to be accepted as symbol characters. */
188 const char ppc_symbol_chars[] = "+-";
190 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
191 int ppc_cie_data_alignment;
193 /* The target specific pseudo-ops which we support. */
195 const pseudo_typeS md_pseudo_table[] =
197 /* Pseudo-ops which must be overridden. */
198 { "byte", ppc_byte, 0 },
201 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
202 legitimately belong in the obj-*.c file. However, XCOFF is based
203 on COFF, and is only implemented for the RS/6000. We just use
204 obj-coff.c, and add what we need here. */
205 { "comm", ppc_comm, 0 },
206 { "lcomm", ppc_comm, 1 },
210 { "bi", ppc_biei, 0 },
212 { "csect", ppc_csect, 0 },
213 { "data", ppc_section, 'd' },
217 { "ei", ppc_biei, 1 },
219 { "extern", ppc_extern, 0 },
220 { "function", ppc_function, 0 },
221 { "lglobl", ppc_lglobl, 0 },
222 { "rename", ppc_rename, 0 },
223 { "section", ppc_named_section, 0 },
224 { "stabx", ppc_stabx, 0 },
225 { "text", ppc_section, 't' },
226 { "toc", ppc_toc, 0 },
227 { "long", ppc_xcoff_cons, 2 },
228 { "llong", ppc_xcoff_cons, 3 },
229 { "word", ppc_xcoff_cons, 1 },
230 { "short", ppc_xcoff_cons, 1 },
231 { "vbyte", ppc_vbyte, 0 },
235 { "llong", ppc_elf_cons, 8 },
236 { "quad", ppc_elf_cons, 8 },
237 { "long", ppc_elf_cons, 4 },
238 { "word", ppc_elf_cons, 2 },
239 { "short", ppc_elf_cons, 2 },
240 { "rdata", ppc_elf_rdata, 0 },
241 { "rodata", ppc_elf_rdata, 0 },
242 { "lcomm", ppc_elf_lcomm, 0 },
246 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
247 { "previous", ppc_previous, 0 },
248 { "pdata", ppc_pdata, 0 },
249 { "ydata", ppc_ydata, 0 },
250 { "reldata", ppc_reldata, 0 },
251 { "rdata", ppc_rdata, 0 },
252 { "ualong", ppc_ualong, 0 },
253 { "znop", ppc_znop, 0 },
254 { "comm", ppc_pe_comm, 0 },
255 { "lcomm", ppc_pe_comm, 1 },
256 { "section", ppc_pe_section, 0 },
257 { "function", ppc_pe_function,0 },
258 { "tocd", ppc_pe_tocd, 0 },
261 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
263 { "machine", ppc_machine, 0 },
270 /* Predefined register names if -mregnames (or default for Windows NT).
271 In general, there are lots of them, in an attempt to be compatible
272 with a number of other Windows NT assemblers. */
274 /* Structure to hold information about predefined registers. */
281 /* List of registers that are pre-defined:
283 Each general register has predefined names of the form:
284 1. r<reg_num> which has the value <reg_num>.
285 2. r.<reg_num> which has the value <reg_num>.
287 Each floating point register has predefined names of the form:
288 1. f<reg_num> which has the value <reg_num>.
289 2. f.<reg_num> which has the value <reg_num>.
291 Each vector unit register has predefined names of the form:
292 1. v<reg_num> which has the value <reg_num>.
293 2. v.<reg_num> which has the value <reg_num>.
295 Each condition register has predefined names of the form:
296 1. cr<reg_num> which has the value <reg_num>.
297 2. cr.<reg_num> which has the value <reg_num>.
299 There are individual registers as well:
300 sp or r.sp has the value 1
301 rtoc or r.toc has the value 2
302 fpscr has the value 0
308 dsisr has the value 18
310 sdr1 has the value 25
311 srr0 has the value 26
312 srr1 has the value 27
314 The table is sorted. Suitable for searching by a binary search. */
316 static const struct pd_reg pre_defined_registers[] =
318 { "cr.0", 0 }, /* Condition Registers */
338 { "dar", 19 }, /* Data Access Register */
339 { "dec", 22 }, /* Decrementer */
340 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
342 { "f.0", 0 }, /* Floating point registers */
410 { "lr", 8 }, /* Link Register */
414 { "r.0", 0 }, /* General Purpose Registers */
447 { "r.sp", 1 }, /* Stack Pointer */
449 { "r.toc", 2 }, /* Pointer to the table of contents */
451 { "r0", 0 }, /* More general purpose registers */
484 { "rtoc", 2 }, /* Table of contents */
486 { "sdr1", 25 }, /* Storage Description Register 1 */
490 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
491 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
493 { "v.0", 0 }, /* Vector registers */
563 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
565 /* Given NAME, find the register number associated with that name, return
566 the integer value associated with the given name or -1 on failure. */
568 static int reg_name_search
569 PARAMS ((const struct pd_reg *, int, const char * name));
572 reg_name_search (regs, regcount, name)
573 const struct pd_reg *regs;
577 int middle, low, high;
585 middle = (low + high) / 2;
586 cmp = strcasecmp (name, regs[middle].name);
592 return regs[middle].value;
600 * Summary of register_name.
602 * in: Input_line_pointer points to 1st char of operand.
604 * out: A expressionS.
605 * The operand may have been a register: in this case, X_op == O_register,
606 * X_add_number is set to the register number, and truth is returned.
607 * Input_line_pointer->(next non-blank) char after operand, or is in its
612 register_name (expressionP)
613 expressionS *expressionP;
620 /* Find the spelling of the operand. */
621 start = name = input_line_pointer;
622 if (name[0] == '%' && ISALPHA (name[1]))
623 name = ++input_line_pointer;
625 else if (!reg_names_p || !ISALPHA (name[0]))
628 c = get_symbol_end ();
629 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
631 /* Put back the delimiting char. */
632 *input_line_pointer = c;
634 /* Look to see if it's in the register table. */
637 expressionP->X_op = O_register;
638 expressionP->X_add_number = reg_number;
640 /* Make the rest nice. */
641 expressionP->X_add_symbol = NULL;
642 expressionP->X_op_symbol = NULL;
646 /* Reset the line as if we had not done anything. */
647 input_line_pointer = start;
651 /* This function is called for each symbol seen in an expression. It
652 handles the special parsing which PowerPC assemblers are supposed
653 to use for condition codes. */
655 /* Whether to do the special parsing. */
656 static bfd_boolean cr_operand;
658 /* Names to recognize in a condition code. This table is sorted. */
659 static const struct pd_reg cr_names[] =
676 /* Parsing function. This returns non-zero if it recognized an
680 ppc_parse_name (name, expr)
689 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
694 expr->X_op = O_constant;
695 expr->X_add_number = val;
700 /* Local variables. */
702 /* The type of processor we are assembling for. This is one or more
703 of the PPC_OPCODE flags defined in opcode/ppc.h. */
704 static unsigned long ppc_cpu = 0;
706 /* Whether to target xcoff64/elf64. */
707 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
709 /* Opcode hash table. */
710 static struct hash_control *ppc_hash;
712 /* Macro hash table. */
713 static struct hash_control *ppc_macro_hash;
716 /* What type of shared library support to use. */
717 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
719 /* Flags to set in the elf header. */
720 static flagword ppc_flags = 0;
722 /* Whether this is Solaris or not. */
723 #ifdef TARGET_SOLARIS_COMMENT
724 #define SOLARIS_P TRUE
726 #define SOLARIS_P FALSE
729 static bfd_boolean msolaris = SOLARIS_P;
734 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
735 using a bunch of different sections. These assembler sections,
736 however, are all encompassed within the .text or .data sections of
737 the final output file. We handle this by using different
738 subsegments within these main segments. */
740 /* Next subsegment to allocate within the .text segment. */
741 static subsegT ppc_text_subsegment = 2;
743 /* Linked list of csects in the text section. */
744 static symbolS *ppc_text_csects;
746 /* Next subsegment to allocate within the .data segment. */
747 static subsegT ppc_data_subsegment = 2;
749 /* Linked list of csects in the data section. */
750 static symbolS *ppc_data_csects;
752 /* The current csect. */
753 static symbolS *ppc_current_csect;
755 /* The RS/6000 assembler uses a TOC which holds addresses of functions
756 and variables. Symbols are put in the TOC with the .tc pseudo-op.
757 A special relocation is used when accessing TOC entries. We handle
758 the TOC as a subsegment within the .data segment. We set it up if
759 we see a .toc pseudo-op, and save the csect symbol here. */
760 static symbolS *ppc_toc_csect;
762 /* The first frag in the TOC subsegment. */
763 static fragS *ppc_toc_frag;
765 /* The first frag in the first subsegment after the TOC in the .data
766 segment. NULL if there are no subsegments after the TOC. */
767 static fragS *ppc_after_toc_frag;
769 /* The current static block. */
770 static symbolS *ppc_current_block;
772 /* The COFF debugging section; set by md_begin. This is not the
773 .debug section, but is instead the secret BFD section which will
774 cause BFD to set the section number of a symbol to N_DEBUG. */
775 static asection *ppc_coff_debug_section;
777 #endif /* OBJ_XCOFF */
781 /* Various sections that we need for PE coff support. */
782 static segT ydata_section;
783 static segT pdata_section;
784 static segT reldata_section;
785 static segT rdata_section;
786 static segT tocdata_section;
788 /* The current section and the previous section. See ppc_previous. */
789 static segT ppc_previous_section;
790 static segT ppc_current_section;
795 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
796 #define PPC_APUINFO_ISEL 0x40
797 #define PPC_APUINFO_PMR 0x41
798 #define PPC_APUINFO_RFMCI 0x42
799 #define PPC_APUINFO_CACHELCK 0x43
800 #define PPC_APUINFO_SPE 0x100
801 #define PPC_APUINFO_EFS 0x101
802 #define PPC_APUINFO_BRLOCK 0x102
805 * We keep a list of APUinfo
807 unsigned long *ppc_apuinfo_list;
808 unsigned int ppc_apuinfo_num;
809 unsigned int ppc_apuinfo_num_alloc;
813 const char *const md_shortopts = "b:l:usm:K:VQ:";
815 const char *const md_shortopts = "um:";
817 const struct option md_longopts[] = {
818 {NULL, no_argument, NULL, 0}
820 const size_t md_longopts_size = sizeof (md_longopts);
823 /* Handle -m options that set cpu type, and .machine arg. */
826 parse_cpu (const char *arg)
828 /* -mpwrx and -mpwr2 mean to assemble for the IBM POWER/2
830 if (strcmp (arg, "pwrx") == 0 || strcmp (arg, "pwr2") == 0)
831 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_POWER2 | PPC_OPCODE_32;
832 /* -mpwr means to assemble for the IBM POWER (RIOS1). */
833 else if (strcmp (arg, "pwr") == 0)
834 ppc_cpu = PPC_OPCODE_POWER | PPC_OPCODE_32;
835 /* -m601 means to assemble for the PowerPC 601, which includes
836 instructions that are holdovers from the Power. */
837 else if (strcmp (arg, "601") == 0)
838 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
839 | PPC_OPCODE_601 | PPC_OPCODE_32);
840 /* -mppc, -mppc32, -m603, and -m604 mean to assemble for the
842 else if (strcmp (arg, "ppc") == 0
843 || strcmp (arg, "ppc32") == 0
844 || strcmp (arg, "603") == 0
845 || strcmp (arg, "604") == 0)
846 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
847 /* -m403 and -m405 mean to assemble for the PowerPC 403/405. */
848 else if (strcmp (arg, "403") == 0
849 || strcmp (arg, "405") == 0)
850 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
851 | PPC_OPCODE_403 | PPC_OPCODE_32);
852 else if (strcmp (arg, "440") == 0)
853 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32
854 | PPC_OPCODE_440 | PPC_OPCODE_ISEL | PPC_OPCODE_RFMCI);
855 else if (strcmp (arg, "7400") == 0
856 || strcmp (arg, "7410") == 0
857 || strcmp (arg, "7450") == 0
858 || strcmp (arg, "7455") == 0)
859 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
860 | PPC_OPCODE_ALTIVEC | PPC_OPCODE_32);
861 else if (strcmp (arg, "e300") == 0)
862 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32
864 else if (strcmp (arg, "altivec") == 0)
867 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
869 ppc_cpu |= PPC_OPCODE_ALTIVEC;
871 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
873 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
874 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
875 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
878 else if (strcmp (arg, "spe") == 0)
881 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
883 ppc_cpu |= PPC_OPCODE_SPE;
885 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
887 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
889 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
891 else if (strcmp (arg, "ppc64bridge") == 0)
893 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
894 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
896 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
897 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
899 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
901 /* -mbooke64 means enable 64-bit BookE support. */
902 else if (strcmp (arg, "booke64") == 0)
904 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
905 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
907 else if (strcmp (arg, "power4") == 0)
909 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
910 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
912 else if (strcmp (arg, "power5") == 0)
914 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
915 | PPC_OPCODE_64 | PPC_OPCODE_POWER4
916 | PPC_OPCODE_POWER5);
918 /* -mcom means assemble for the common intersection between Power
919 and PowerPC. At present, we just allow the union, rather
920 than the intersection. */
921 else if (strcmp (arg, "com") == 0)
922 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
923 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
924 else if (strcmp (arg, "any") == 0)
925 ppc_cpu |= PPC_OPCODE_ANY;
933 md_parse_option (c, arg)
940 /* -u means that any undefined symbols should be treated as
941 external, which is the default for gas anyhow. */
946 /* Solaris as takes -le (presumably for little endian). For completeness
947 sake, recognize -be also. */
948 if (strcmp (arg, "e") == 0)
950 target_big_endian = 0;
951 set_target_endian = 1;
959 if (strcmp (arg, "e") == 0)
961 target_big_endian = 1;
962 set_target_endian = 1;
970 /* Recognize -K PIC. */
971 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
974 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
982 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
984 if (strcmp (arg, "64") == 0)
989 as_fatal (_("%s unsupported"), "-a64");
992 else if (strcmp (arg, "32") == 0)
1002 else if (strcmp (arg, "regnames") == 0)
1005 else if (strcmp (arg, "no-regnames") == 0)
1006 reg_names_p = FALSE;
1009 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1010 that require relocation. */
1011 else if (strcmp (arg, "relocatable") == 0)
1013 shlib = SHLIB_MRELOCATABLE;
1014 ppc_flags |= EF_PPC_RELOCATABLE;
1017 else if (strcmp (arg, "relocatable-lib") == 0)
1019 shlib = SHLIB_MRELOCATABLE;
1020 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1023 /* -memb, set embedded bit. */
1024 else if (strcmp (arg, "emb") == 0)
1025 ppc_flags |= EF_PPC_EMB;
1027 /* -mlittle/-mbig set the endianess. */
1028 else if (strcmp (arg, "little") == 0
1029 || strcmp (arg, "little-endian") == 0)
1031 target_big_endian = 0;
1032 set_target_endian = 1;
1035 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1037 target_big_endian = 1;
1038 set_target_endian = 1;
1041 else if (strcmp (arg, "solaris") == 0)
1044 ppc_comment_chars = ppc_solaris_comment_chars;
1047 else if (strcmp (arg, "no-solaris") == 0)
1050 ppc_comment_chars = ppc_eabi_comment_chars;
1055 as_bad (_("invalid switch -m%s"), arg);
1061 /* -V: SVR4 argument to print version ID. */
1063 print_version_id ();
1066 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1067 should be emitted or not. FIXME: Not implemented. */
1071 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1072 rather than .stabs.excl, which is ignored by the linker.
1073 FIXME: Not implemented. */
1089 md_show_usage (stream)
1092 fprintf (stream, _("\
1094 -a32 generate ELF32/XCOFF32\n\
1095 -a64 generate ELF64/XCOFF64\n\
1097 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1098 -mpwr generate code for POWER (RIOS1)\n\
1099 -m601 generate code for PowerPC 601\n\
1100 -mppc, -mppc32, -m603, -m604\n\
1101 generate code for PowerPC 603/604\n\
1102 -m403, -m405 generate code for PowerPC 403/405\n\
1103 -m440 generate code for PowerPC 440\n\
1104 -m7400, -m7410, -m7450, -m7455\n\
1105 generate code For PowerPC 7400/7410/7450/7455\n"));
1106 fprintf (stream, _("\
1107 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1108 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1109 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1110 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1111 -mpower4 generate code for Power4 architecture\n\
1112 -mpower5 generate code for Power5 architecture\n\
1113 -mcom generate code Power/PowerPC common instructions\n\
1114 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1115 fprintf (stream, _("\
1116 -maltivec generate code for AltiVec\n\
1117 -me300 generate code for PowerPC e300 family\n\
1118 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1119 -mspe generate code for Motorola SPE instructions\n\
1120 -mregnames Allow symbolic names for registers\n\
1121 -mno-regnames Do not allow symbolic names for registers\n"));
1123 fprintf (stream, _("\
1124 -mrelocatable support for GCC's -mrelocatble option\n\
1125 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1126 -memb set PPC_EMB bit in ELF flags\n\
1127 -mlittle, -mlittle-endian, -l, -le\n\
1128 generate code for a little endian machine\n\
1129 -mbig, -mbig-endian, -b, -be\n\
1130 generate code for a big endian machine\n\
1131 -msolaris generate code for Solaris\n\
1132 -mno-solaris do not generate code for Solaris\n\
1133 -V print assembler version number\n\
1134 -Qy, -Qn ignored\n"));
1138 /* Set ppc_cpu if it is not already set. */
1143 const char *default_os = TARGET_OS;
1144 const char *default_cpu = TARGET_CPU;
1146 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1149 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1150 else if (strncmp (default_os, "aix", 3) == 0
1151 && default_os[3] >= '4' && default_os[3] <= '9')
1152 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1153 else if (strncmp (default_os, "aix3", 4) == 0)
1154 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1155 else if (strcmp (default_cpu, "rs6000") == 0)
1156 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1157 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1158 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1160 as_fatal (_("Unknown default cpu = %s, os = %s"),
1161 default_cpu, default_os);
1165 /* Figure out the BFD architecture to use. This function and ppc_mach
1166 are called well before md_begin, when the output file is opened. */
1168 enum bfd_architecture
1171 const char *default_cpu = TARGET_CPU;
1174 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1175 return bfd_arch_powerpc;
1176 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1177 return bfd_arch_rs6000;
1178 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1180 if (strcmp (default_cpu, "rs6000") == 0)
1181 return bfd_arch_rs6000;
1182 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1183 return bfd_arch_powerpc;
1186 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1187 return bfd_arch_unknown;
1194 return bfd_mach_ppc64;
1195 else if (ppc_arch () == bfd_arch_rs6000)
1196 return bfd_mach_rs6k;
1198 return bfd_mach_ppc;
1202 ppc_target_format ()
1206 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1208 return "xcoff-powermac";
1211 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1213 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1219 return "elf32-powerpc-vxworks";
1221 return (target_big_endian
1222 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1223 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1228 /* Insert opcodes and macros into hash tables. Called at startup and
1232 ppc_setup_opcodes (void)
1234 register const struct powerpc_opcode *op;
1235 const struct powerpc_opcode *op_end;
1236 const struct powerpc_macro *macro;
1237 const struct powerpc_macro *macro_end;
1238 bfd_boolean dup_insn = FALSE;
1240 if (ppc_hash != NULL)
1241 hash_die (ppc_hash);
1242 if (ppc_macro_hash != NULL)
1243 hash_die (ppc_macro_hash);
1245 /* Insert the opcodes into a hash table. */
1246 ppc_hash = hash_new ();
1248 op_end = powerpc_opcodes + powerpc_num_opcodes;
1249 for (op = powerpc_opcodes; op < op_end; op++)
1251 know ((op->opcode & op->mask) == op->opcode);
1253 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1254 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1255 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1256 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1257 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1258 /* Certain instructions (eg: extsw) do not exist in the
1259 32-bit BookE instruction set, but they do exist in the
1260 64-bit BookE instruction set, and other PPC instruction
1261 sets. Check to see if the opcode has the BOOKE64 flag set.
1262 If it does make sure that the target CPU is not the BookE32. */
1263 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1264 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1265 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1266 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1267 || ((op->flags & PPC_OPCODE_POWER4)
1268 == (ppc_cpu & PPC_OPCODE_POWER4)))
1269 && ((op->flags & PPC_OPCODE_POWER5) == 0
1270 || ((op->flags & PPC_OPCODE_POWER5)
1271 == (ppc_cpu & PPC_OPCODE_POWER5))))
1275 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1278 /* Ignore Power duplicates for -m601. */
1279 if ((ppc_cpu & PPC_OPCODE_601) != 0
1280 && (op->flags & PPC_OPCODE_POWER) != 0)
1283 as_bad (_("Internal assembler error for instruction %s"),
1290 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1291 for (op = powerpc_opcodes; op < op_end; op++)
1292 hash_insert (ppc_hash, op->name, (PTR) op);
1294 /* Insert the macros into a hash table. */
1295 ppc_macro_hash = hash_new ();
1297 macro_end = powerpc_macros + powerpc_num_macros;
1298 for (macro = powerpc_macros; macro < macro_end; macro++)
1300 if ((macro->flags & ppc_cpu) != 0)
1304 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1305 if (retval != (const char *) NULL)
1307 as_bad (_("Internal assembler error for macro %s"), macro->name);
1317 /* This function is called when the assembler starts up. It is called
1318 after the options have been parsed and the output file has been
1326 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1329 /* Set the ELF flags if desired. */
1330 if (ppc_flags && !msolaris)
1331 bfd_set_private_flags (stdoutput, ppc_flags);
1334 ppc_setup_opcodes ();
1336 /* Tell the main code what the endianness is if it is not overridden
1338 if (!set_target_endian)
1340 set_target_endian = 1;
1341 target_big_endian = PPC_BIG_ENDIAN;
1345 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1347 /* Create dummy symbols to serve as initial csects. This forces the
1348 text csects to precede the data csects. These symbols will not
1350 ppc_text_csects = symbol_make ("dummy\001");
1351 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1352 ppc_data_csects = symbol_make ("dummy\001");
1353 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1358 ppc_current_section = text_section;
1359 ppc_previous_section = 0;
1368 if (ppc_apuinfo_list == NULL)
1371 /* Ok, so write the section info out. We have this layout:
1375 0 8 length of "APUinfo\0"
1376 4 (n*4) number of APU's (4 bytes each)
1379 20 APU#1 first APU's info
1380 24 APU#2 second APU's info
1385 asection *seg = now_seg;
1386 subsegT subseg = now_subseg;
1387 asection *apuinfo_secp = (asection *) NULL;
1390 /* Create the .PPC.EMB.apuinfo section. */
1391 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1392 bfd_set_section_flags (stdoutput,
1394 SEC_HAS_CONTENTS | SEC_READONLY);
1397 md_number_to_chars (p, (valueT) 8, 4);
1400 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1403 md_number_to_chars (p, (valueT) 2, 4);
1406 strcpy (p, "APUinfo");
1408 for (i = 0; i < ppc_apuinfo_num; i++)
1411 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1414 frag_align (2, 0, 0);
1416 /* We probably can't restore the current segment, for there likely
1419 subseg_set (seg, subseg);
1424 /* Insert an operand value into an instruction. */
1426 static unsigned long
1427 ppc_insert_operand (insn, operand, val, file, line)
1429 const struct powerpc_operand *operand;
1434 if (operand->bits != 32)
1439 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1441 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
1442 max = (1 << operand->bits) - 1;
1444 max = (1 << (operand->bits - 1)) - 1;
1445 min = - (1 << (operand->bits - 1));
1449 /* Some people write 32 bit hex constants with the sign
1450 extension done by hand. This shouldn't really be
1451 valid, but, to permit this code to assemble on a 64
1452 bit host, we sign extend the 32 bit value. */
1454 && (val & (offsetT) 0x80000000) != 0
1455 && (val & (offsetT) 0xffffffff) == val)
1464 max = (1 << operand->bits) - 1;
1468 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1473 if (test < (offsetT) min || test > (offsetT) max)
1474 as_bad_value_out_of_range (_("operand"), test, (offsetT) min, (offsetT) max, file, line);
1477 if (operand->insert)
1482 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1483 if (errmsg != (const char *) NULL)
1484 as_bad_where (file, line, errmsg);
1487 insn |= (((long) val & ((1 << operand->bits) - 1))
1495 /* Parse @got, etc. and return the desired relocation. */
1496 static bfd_reloc_code_real_type
1497 ppc_elf_suffix (str_p, exp_p)
1503 unsigned int length : 8;
1504 unsigned int valid32 : 1;
1505 unsigned int valid64 : 1;
1514 const struct map_bfd *ptr;
1516 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1517 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1518 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1520 static const struct map_bfd mapping[] = {
1521 MAP ("l", BFD_RELOC_LO16),
1522 MAP ("h", BFD_RELOC_HI16),
1523 MAP ("ha", BFD_RELOC_HI16_S),
1524 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1525 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1526 MAP ("got", BFD_RELOC_16_GOTOFF),
1527 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1528 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1529 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1530 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1531 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1532 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1533 MAP ("copy", BFD_RELOC_PPC_COPY),
1534 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1535 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1536 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1537 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1538 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1539 MAP ("tls", BFD_RELOC_PPC_TLS),
1540 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1541 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1542 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1543 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1544 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1545 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1546 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1547 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1548 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1549 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1550 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1551 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1552 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1553 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1554 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1555 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1556 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1557 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1558 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1559 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1560 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1561 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1562 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1563 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1564 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1565 MAP32 ("fixup", BFD_RELOC_CTOR),
1566 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1567 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1568 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1569 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1570 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1571 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1572 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1573 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1574 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1575 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1576 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1577 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1578 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1579 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1580 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1581 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1582 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1583 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1584 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1585 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1586 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1587 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1588 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1589 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1590 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1591 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1592 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1593 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1594 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1595 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1596 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1597 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1598 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1599 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1600 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1601 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1602 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1603 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1604 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1605 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1606 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1610 return BFD_RELOC_UNUSED;
1612 for (ch = *str, str2 = ident;
1613 (str2 < ident + sizeof (ident) - 1
1614 && (ISALNUM (ch) || ch == '@'));
1617 *str2++ = TOLOWER (ch);
1624 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1625 if (ch == ptr->string[0]
1626 && len == ptr->length
1627 && memcmp (ident, ptr->string, ptr->length) == 0
1628 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1630 int reloc = ptr->reloc;
1633 if (exp_p->X_add_number != 0
1634 && (reloc == (int) BFD_RELOC_16_GOTOFF
1635 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1636 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1637 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1638 as_warn (_("identifier+constant@got means identifier@got+constant"));
1640 /* Now check for identifier@suffix+constant. */
1641 if (*str == '-' || *str == '+')
1643 char *orig_line = input_line_pointer;
1644 expressionS new_exp;
1646 input_line_pointer = str;
1647 expression (&new_exp);
1648 if (new_exp.X_op == O_constant)
1650 exp_p->X_add_number += new_exp.X_add_number;
1651 str = input_line_pointer;
1654 if (&input_line_pointer != str_p)
1655 input_line_pointer = orig_line;
1659 if (reloc == (int) BFD_RELOC_PPC64_TOC
1660 && exp_p->X_op == O_symbol
1661 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1663 /* Change the symbol so that the dummy .TOC. symbol can be
1664 omitted from the object file. */
1665 exp_p->X_add_symbol = &abs_symbol;
1668 return (bfd_reloc_code_real_type) reloc;
1671 return BFD_RELOC_UNUSED;
1674 /* Like normal .long/.short/.word, except support @got, etc.
1675 Clobbers input_line_pointer, checks end-of-line. */
1677 ppc_elf_cons (nbytes)
1678 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1681 bfd_reloc_code_real_type reloc;
1683 if (is_it_end_of_statement ())
1685 demand_empty_rest_of_line ();
1692 if (exp.X_op == O_symbol
1693 && *input_line_pointer == '@'
1694 && (reloc = ppc_elf_suffix (&input_line_pointer,
1695 &exp)) != BFD_RELOC_UNUSED)
1697 reloc_howto_type *reloc_howto;
1700 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1701 size = bfd_get_reloc_size (reloc_howto);
1705 as_bad (_("%s relocations do not fit in %d bytes\n"),
1706 reloc_howto->name, nbytes);
1713 p = frag_more (nbytes);
1715 if (target_big_endian)
1716 offset = nbytes - size;
1717 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1722 emit_expr (&exp, (unsigned int) nbytes);
1724 while (*input_line_pointer++ == ',');
1726 /* Put terminator back into stream. */
1727 input_line_pointer--;
1728 demand_empty_rest_of_line ();
1731 /* Solaris pseduo op to change to the .rodata section. */
1736 char *save_line = input_line_pointer;
1737 static char section[] = ".rodata\n";
1739 /* Just pretend this is .section .rodata */
1740 input_line_pointer = section;
1741 obj_elf_section (xxx);
1743 input_line_pointer = save_line;
1746 /* Pseudo op to make file scope bss items. */
1749 int xxx ATTRIBUTE_UNUSED;
1751 register char *name;
1755 register symbolS *symbolP;
1762 name = input_line_pointer;
1763 c = get_symbol_end ();
1765 /* just after name is now '\0'. */
1766 p = input_line_pointer;
1769 if (*input_line_pointer != ',')
1771 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1772 ignore_rest_of_line ();
1776 input_line_pointer++; /* skip ',' */
1777 if ((size = get_absolute_expression ()) < 0)
1779 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1780 ignore_rest_of_line ();
1784 /* The third argument to .lcomm is the alignment. */
1785 if (*input_line_pointer != ',')
1789 ++input_line_pointer;
1790 align = get_absolute_expression ();
1793 as_warn (_("ignoring bad alignment"));
1799 symbolP = symbol_find_or_make (name);
1802 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1804 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1805 S_GET_NAME (symbolP));
1806 ignore_rest_of_line ();
1810 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1812 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1813 S_GET_NAME (symbolP),
1814 (long) S_GET_VALUE (symbolP),
1817 ignore_rest_of_line ();
1823 old_subsec = now_subseg;
1826 /* Convert to a power of 2 alignment. */
1827 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1830 as_bad (_("Common alignment not a power of 2"));
1831 ignore_rest_of_line ();
1838 record_alignment (bss_section, align2);
1839 subseg_set (bss_section, 0);
1841 frag_align (align2, 0, 0);
1842 if (S_GET_SEGMENT (symbolP) == bss_section)
1843 symbol_get_frag (symbolP)->fr_symbol = 0;
1844 symbol_set_frag (symbolP, frag_now);
1845 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1848 S_SET_SIZE (symbolP, size);
1849 S_SET_SEGMENT (symbolP, bss_section);
1850 subseg_set (old_sec, old_subsec);
1851 demand_empty_rest_of_line ();
1854 /* Validate any relocations emitted for -mrelocatable, possibly adding
1855 fixups for word relocations in writable segments, so we can adjust
1858 ppc_elf_validate_fix (fixp, seg)
1862 if (fixp->fx_done || fixp->fx_pcrel)
1871 case SHLIB_MRELOCATABLE:
1872 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1873 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1874 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1875 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1876 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1877 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1878 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1879 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1880 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1881 && (seg->flags & SEC_LOAD) != 0
1882 && strcmp (segment_name (seg), ".got2") != 0
1883 && strcmp (segment_name (seg), ".dtors") != 0
1884 && strcmp (segment_name (seg), ".ctors") != 0
1885 && strcmp (segment_name (seg), ".fixup") != 0
1886 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1887 && strcmp (segment_name (seg), ".eh_frame") != 0
1888 && strcmp (segment_name (seg), ".ex_shared") != 0)
1890 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1891 || fixp->fx_r_type != BFD_RELOC_CTOR)
1893 as_bad_where (fixp->fx_file, fixp->fx_line,
1894 _("Relocation cannot be done when using -mrelocatable"));
1901 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1902 function descriptor sym if the corresponding code sym is used. */
1905 ppc_frob_file_before_adjust ()
1913 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1920 name = S_GET_NAME (symp);
1924 if (! S_IS_WEAK (symp)
1925 || S_IS_DEFINED (symp))
1928 len = strlen (name) + 1;
1929 dotname = xmalloc (len + 1);
1931 memcpy (dotname + 1, name, len);
1932 dotsym = symbol_find (dotname);
1934 if (dotsym != NULL && (symbol_used_p (dotsym)
1935 || symbol_used_in_reloc_p (dotsym)))
1936 symbol_mark_used (symp);
1940 toc = bfd_get_section_by_name (stdoutput, ".toc");
1942 && bfd_section_size (stdoutput, toc) > 0x10000)
1943 as_warn (_("TOC section size exceeds 64k"));
1945 /* Don't emit .TOC. symbol. */
1946 symp = symbol_find (".TOC.");
1948 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1950 #endif /* OBJ_ELF */
1955 * Summary of parse_toc_entry.
1957 * in: Input_line_pointer points to the '[' in one of:
1959 * [toc] [tocv] [toc32] [toc64]
1961 * Anything else is an error of one kind or another.
1964 * return value: success or failure
1965 * toc_kind: kind of toc reference
1966 * input_line_pointer:
1967 * success: first char after the ']'
1968 * failure: unchanged
1972 * [toc] - rv == success, toc_kind = default_toc
1973 * [tocv] - rv == success, toc_kind = data_in_toc
1974 * [toc32] - rv == success, toc_kind = must_be_32
1975 * [toc64] - rv == success, toc_kind = must_be_64
1979 enum toc_size_qualifier
1981 default_toc, /* The toc cell constructed should be the system default size */
1982 data_in_toc, /* This is a direct reference to a toc cell */
1983 must_be_32, /* The toc cell constructed must be 32 bits wide */
1984 must_be_64 /* The toc cell constructed must be 64 bits wide */
1988 parse_toc_entry (toc_kind)
1989 enum toc_size_qualifier *toc_kind;
1994 enum toc_size_qualifier t;
1996 /* Save the input_line_pointer. */
1997 start = input_line_pointer;
1999 /* Skip over the '[' , and whitespace. */
2000 ++input_line_pointer;
2003 /* Find the spelling of the operand. */
2004 toc_spec = input_line_pointer;
2005 c = get_symbol_end ();
2007 if (strcmp (toc_spec, "toc") == 0)
2011 else if (strcmp (toc_spec, "tocv") == 0)
2015 else if (strcmp (toc_spec, "toc32") == 0)
2019 else if (strcmp (toc_spec, "toc64") == 0)
2025 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2026 *input_line_pointer = c;
2027 input_line_pointer = start;
2031 /* Now find the ']'. */
2032 *input_line_pointer = c;
2034 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2035 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2039 as_bad (_("syntax error: expected `]', found `%c'"), c);
2040 input_line_pointer = start;
2051 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2053 ppc_apuinfo_section_add (apu, version)
2054 unsigned int apu, version;
2058 /* Check we don't already exist. */
2059 for (i = 0; i < ppc_apuinfo_num; i++)
2060 if (ppc_apuinfo_list[i] == APUID (apu, version))
2063 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2065 if (ppc_apuinfo_num_alloc == 0)
2067 ppc_apuinfo_num_alloc = 4;
2068 ppc_apuinfo_list = (unsigned long *)
2069 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2073 ppc_apuinfo_num_alloc += 4;
2074 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2075 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2078 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2084 /* We need to keep a list of fixups. We can't simply generate them as
2085 we go, because that would require us to first create the frag, and
2086 that would screw up references to ``.''. */
2092 bfd_reloc_code_real_type reloc;
2095 #define MAX_INSN_FIXUPS (5)
2097 /* This routine is called for each instruction to be assembled. */
2104 const struct powerpc_opcode *opcode;
2106 const unsigned char *opindex_ptr;
2110 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2116 bfd_reloc_code_real_type reloc;
2119 /* Get the opcode. */
2120 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2125 /* Look up the opcode in the hash table. */
2126 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2127 if (opcode == (const struct powerpc_opcode *) NULL)
2129 const struct powerpc_macro *macro;
2131 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2132 if (macro == (const struct powerpc_macro *) NULL)
2133 as_bad (_("Unrecognized opcode: `%s'"), str);
2135 ppc_macro (s, macro);
2140 insn = opcode->opcode;
2143 while (ISSPACE (*str))
2146 /* PowerPC operands are just expressions. The only real issue is
2147 that a few operand types are optional. All cases which might use
2148 an optional operand separate the operands only with commas (in some
2149 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2150 have optional operands). Most instructions with optional operands
2151 have only one. Those that have more than one optional operand can
2152 take either all their operands or none. So, before we start seriously
2153 parsing the operands, we check to see if we have optional operands,
2154 and if we do, we count the number of commas to see which operands
2155 have been omitted. */
2157 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2159 const struct powerpc_operand *operand;
2161 operand = &powerpc_operands[*opindex_ptr];
2162 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2164 unsigned int opcount;
2165 unsigned int num_operands_expected;
2168 /* There is an optional operand. Count the number of
2169 commas in the input line. */
2176 while ((s = strchr (s, ',')) != (char *) NULL)
2183 /* Compute the number of expected operands.
2184 Do not count fake operands. */
2185 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2186 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2187 ++ num_operands_expected;
2189 /* If there are fewer operands in the line then are called
2190 for by the instruction, we want to skip the optional
2192 if (opcount < num_operands_expected)
2199 /* Gather the operands. */
2203 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2205 const struct powerpc_operand *operand;
2211 if (next_opindex == 0)
2212 operand = &powerpc_operands[*opindex_ptr];
2215 operand = &powerpc_operands[next_opindex];
2220 /* If this is a fake operand, then we do not expect anything
2222 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2224 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2225 if (errmsg != (const char *) NULL)
2230 /* If this is an optional operand, and we are skipping it, just
2232 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2235 if (operand->insert)
2237 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2238 if (errmsg != (const char *) NULL)
2241 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2242 next_opindex = *opindex_ptr + 1;
2246 /* Gather the operand. */
2247 hold = input_line_pointer;
2248 input_line_pointer = str;
2251 if (*input_line_pointer == '[')
2253 /* We are expecting something like the second argument here:
2255 * lwz r4,[toc].GS.0.static_int(rtoc)
2256 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2257 * The argument following the `]' must be a symbol name, and the
2258 * register must be the toc register: 'rtoc' or '2'
2260 * The effect is to 0 as the displacement field
2261 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2262 * the appropriate variation) reloc against it based on the symbol.
2263 * The linker will build the toc, and insert the resolved toc offset.
2266 * o The size of the toc entry is currently assumed to be
2267 * 32 bits. This should not be assumed to be a hard coded
2269 * o In an effort to cope with a change from 32 to 64 bits,
2270 * there are also toc entries that are specified to be
2271 * either 32 or 64 bits:
2272 * lwz r4,[toc32].GS.0.static_int(rtoc)
2273 * lwz r4,[toc64].GS.0.static_int(rtoc)
2274 * These demand toc entries of the specified size, and the
2275 * instruction probably requires it.
2279 enum toc_size_qualifier toc_kind;
2280 bfd_reloc_code_real_type toc_reloc;
2282 /* Go parse off the [tocXX] part. */
2283 valid_toc = parse_toc_entry (&toc_kind);
2287 /* Note: message has already been issued.
2288 FIXME: what sort of recovery should we do?
2289 demand_rest_of_line (); return; ? */
2292 /* Now get the symbol following the ']'. */
2298 /* In this case, we may not have seen the symbol yet,
2299 since it is allowed to appear on a .extern or .globl
2300 or just be a label in the .data section. */
2301 toc_reloc = BFD_RELOC_PPC_TOC16;
2304 /* 1. The symbol must be defined and either in the toc
2305 section, or a global.
2306 2. The reloc generated must have the TOCDEFN flag set
2307 in upper bit mess of the reloc type.
2308 FIXME: It's a little confusing what the tocv
2309 qualifier can be used for. At the very least, I've
2310 seen three uses, only one of which I'm sure I can
2312 if (ex.X_op == O_symbol)
2314 assert (ex.X_add_symbol != NULL);
2315 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2318 as_bad (_("[tocv] symbol is not a toc symbol"));
2322 toc_reloc = BFD_RELOC_PPC_TOC16;
2325 /* FIXME: these next two specifically specify 32/64 bit
2326 toc entries. We don't support them today. Is this
2327 the right way to say that? */
2328 toc_reloc = BFD_RELOC_UNUSED;
2329 as_bad (_("Unimplemented toc32 expression modifier"));
2332 /* FIXME: see above. */
2333 toc_reloc = BFD_RELOC_UNUSED;
2334 as_bad (_("Unimplemented toc64 expression modifier"));
2338 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2344 /* We need to generate a fixup for this expression. */
2345 if (fc >= MAX_INSN_FIXUPS)
2346 as_fatal (_("too many fixups"));
2348 fixups[fc].reloc = toc_reloc;
2349 fixups[fc].exp = ex;
2350 fixups[fc].opindex = *opindex_ptr;
2353 /* Ok. We've set up the fixup for the instruction. Now make it
2354 look like the constant 0 was found here. */
2356 ex.X_op = O_constant;
2357 ex.X_add_number = 0;
2358 ex.X_add_symbol = NULL;
2359 ex.X_op_symbol = NULL;
2365 if (! register_name (&ex))
2367 if ((operand->flags & PPC_OPERAND_CR) != 0)
2374 str = input_line_pointer;
2375 input_line_pointer = hold;
2377 if (ex.X_op == O_illegal)
2378 as_bad (_("illegal operand"));
2379 else if (ex.X_op == O_absent)
2380 as_bad (_("missing operand"));
2381 else if (ex.X_op == O_register)
2383 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2386 else if (ex.X_op == O_constant)
2389 /* Allow @HA, @L, @H on constants. */
2390 char *orig_str = str;
2392 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2399 case BFD_RELOC_LO16:
2400 /* X_unsigned is the default, so if the user has done
2401 something which cleared it, we always produce a
2403 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2404 ex.X_add_number &= 0xffff;
2406 ex.X_add_number = SEX16 (ex.X_add_number);
2409 case BFD_RELOC_HI16:
2410 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2411 ex.X_add_number = PPC_HI (ex.X_add_number);
2413 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2416 case BFD_RELOC_HI16_S:
2417 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2418 ex.X_add_number = PPC_HA (ex.X_add_number);
2420 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2423 case BFD_RELOC_PPC64_HIGHER:
2424 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2425 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2427 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2430 case BFD_RELOC_PPC64_HIGHER_S:
2431 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2432 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2434 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2437 case BFD_RELOC_PPC64_HIGHEST:
2438 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2439 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2441 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2444 case BFD_RELOC_PPC64_HIGHEST_S:
2445 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2446 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2448 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2451 #endif /* OBJ_ELF */
2452 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2456 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2458 /* Some TLS tweaks. */
2463 case BFD_RELOC_PPC_TLS:
2464 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2467 /* We'll only use the 32 (or 64) bit form of these relocations
2468 in constants. Instructions get the 16 bit form. */
2469 case BFD_RELOC_PPC_DTPREL:
2470 reloc = BFD_RELOC_PPC_DTPREL16;
2472 case BFD_RELOC_PPC_TPREL:
2473 reloc = BFD_RELOC_PPC_TPREL16;
2477 /* For the absolute forms of branches, convert the PC
2478 relative form back into the absolute. */
2479 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2483 case BFD_RELOC_PPC_B26:
2484 reloc = BFD_RELOC_PPC_BA26;
2486 case BFD_RELOC_PPC_B16:
2487 reloc = BFD_RELOC_PPC_BA16;
2489 case BFD_RELOC_PPC_B16_BRTAKEN:
2490 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2492 case BFD_RELOC_PPC_B16_BRNTAKEN:
2493 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2501 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2506 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2508 case BFD_RELOC_LO16:
2509 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2511 case BFD_RELOC_16_GOTOFF:
2512 reloc = BFD_RELOC_PPC64_GOT16_DS;
2514 case BFD_RELOC_LO16_GOTOFF:
2515 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2517 case BFD_RELOC_LO16_PLTOFF:
2518 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2520 case BFD_RELOC_16_BASEREL:
2521 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2523 case BFD_RELOC_LO16_BASEREL:
2524 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2526 case BFD_RELOC_PPC_TOC16:
2527 reloc = BFD_RELOC_PPC64_TOC16_DS;
2529 case BFD_RELOC_PPC64_TOC16_LO:
2530 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2532 case BFD_RELOC_PPC64_PLTGOT16:
2533 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2535 case BFD_RELOC_PPC64_PLTGOT16_LO:
2536 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2538 case BFD_RELOC_PPC_DTPREL16:
2539 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2541 case BFD_RELOC_PPC_DTPREL16_LO:
2542 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2544 case BFD_RELOC_PPC_TPREL16:
2545 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2547 case BFD_RELOC_PPC_TPREL16_LO:
2548 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2550 case BFD_RELOC_PPC_GOT_DTPREL16:
2551 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2552 case BFD_RELOC_PPC_GOT_TPREL16:
2553 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2556 as_bad (_("unsupported relocation for DS offset field"));
2561 /* We need to generate a fixup for this expression. */
2562 if (fc >= MAX_INSN_FIXUPS)
2563 as_fatal (_("too many fixups"));
2564 fixups[fc].exp = ex;
2565 fixups[fc].opindex = 0;
2566 fixups[fc].reloc = reloc;
2569 #endif /* OBJ_ELF */
2573 /* We need to generate a fixup for this expression. */
2574 if (fc >= MAX_INSN_FIXUPS)
2575 as_fatal (_("too many fixups"));
2576 fixups[fc].exp = ex;
2577 fixups[fc].opindex = *opindex_ptr;
2578 fixups[fc].reloc = BFD_RELOC_UNUSED;
2587 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2595 /* The call to expression should have advanced str past any
2598 && (endc != ',' || *str != '\0'))
2600 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2608 while (ISSPACE (*str))
2612 as_bad (_("junk at end of line: `%s'"), str);
2615 /* Do we need/want a APUinfo section? */
2616 if (ppc_cpu & (PPC_OPCODE_SPE
2617 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2618 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2619 | PPC_OPCODE_RFMCI))
2621 /* These are all version "1". */
2622 if (opcode->flags & PPC_OPCODE_SPE)
2623 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2624 if (opcode->flags & PPC_OPCODE_ISEL)
2625 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2626 if (opcode->flags & PPC_OPCODE_EFS)
2627 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2628 if (opcode->flags & PPC_OPCODE_BRLOCK)
2629 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2630 if (opcode->flags & PPC_OPCODE_PMR)
2631 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2632 if (opcode->flags & PPC_OPCODE_CACHELCK)
2633 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2634 if (opcode->flags & PPC_OPCODE_RFMCI)
2635 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2639 /* Write out the instruction. */
2641 addr_mod = frag_now_fix () & 3;
2642 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2643 as_bad (_("instruction address is not a multiple of 4"));
2644 frag_now->insn_addr = addr_mod;
2645 frag_now->has_code = 1;
2646 md_number_to_chars (f, insn, 4);
2649 dwarf2_emit_insn (4);
2652 /* Create any fixups. At this point we do not use a
2653 bfd_reloc_code_real_type, but instead just use the
2654 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2655 handle fixups for any operand type, although that is admittedly
2656 not a very exciting feature. We pick a BFD reloc type in
2658 for (i = 0; i < fc; i++)
2660 const struct powerpc_operand *operand;
2662 operand = &powerpc_operands[fixups[i].opindex];
2663 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2665 reloc_howto_type *reloc_howto;
2670 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2674 size = bfd_get_reloc_size (reloc_howto);
2675 offset = target_big_endian ? (4 - size) : 0;
2677 if (size < 1 || size > 4)
2680 fixP = fix_new_exp (frag_now,
2681 f - frag_now->fr_literal + offset,
2684 reloc_howto->pc_relative,
2687 /* Turn off complaints that the addend is too large for things like
2689 switch (fixups[i].reloc)
2691 case BFD_RELOC_16_GOTOFF:
2692 case BFD_RELOC_PPC_TOC16:
2693 case BFD_RELOC_LO16:
2694 case BFD_RELOC_HI16:
2695 case BFD_RELOC_HI16_S:
2697 case BFD_RELOC_PPC64_HIGHER:
2698 case BFD_RELOC_PPC64_HIGHER_S:
2699 case BFD_RELOC_PPC64_HIGHEST:
2700 case BFD_RELOC_PPC64_HIGHEST_S:
2702 fixP->fx_no_overflow = 1;
2709 fix_new_exp (frag_now,
2710 f - frag_now->fr_literal,
2713 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2714 ((bfd_reloc_code_real_type)
2715 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2719 /* Handle a macro. Gather all the operands, transform them as
2720 described by the macro, and call md_assemble recursively. All the
2721 operands are separated by commas; we don't accept parentheses
2722 around operands here. */
2725 ppc_macro (str, macro)
2727 const struct powerpc_macro *macro;
2738 /* Gather the users operands into the operands array. */
2743 if (count >= sizeof operands / sizeof operands[0])
2745 operands[count++] = s;
2746 s = strchr (s, ',');
2747 if (s == (char *) NULL)
2752 if (count != macro->operands)
2754 as_bad (_("wrong number of operands"));
2758 /* Work out how large the string must be (the size is unbounded
2759 because it includes user input). */
2761 format = macro->format;
2762 while (*format != '\0')
2771 arg = strtol (format + 1, &send, 10);
2772 know (send != format && arg >= 0 && arg < count);
2773 len += strlen (operands[arg]);
2778 /* Put the string together. */
2779 complete = s = (char *) alloca (len + 1);
2780 format = macro->format;
2781 while (*format != '\0')
2787 arg = strtol (format + 1, &send, 10);
2788 strcpy (s, operands[arg]);
2795 /* Assemble the constructed instruction. */
2796 md_assemble (complete);
2800 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2803 ppc_section_letter (letter, ptr_msg)
2810 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2815 ppc_section_word (str, len)
2819 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2826 ppc_section_type (str, len)
2830 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2837 ppc_section_flags (flags, attr, type)
2842 if (type == SHT_ORDERED)
2843 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2845 if (attr & SHF_EXCLUDE)
2846 flags |= SEC_EXCLUDE;
2850 #endif /* OBJ_ELF */
2853 /* Pseudo-op handling. */
2855 /* The .byte pseudo-op. This is similar to the normal .byte
2856 pseudo-op, but it can also take a single ASCII string. */
2860 int ignore ATTRIBUTE_UNUSED;
2862 if (*input_line_pointer != '\"')
2868 /* Gather characters. A real double quote is doubled. Unusual
2869 characters are not permitted. */
2870 ++input_line_pointer;
2875 c = *input_line_pointer++;
2879 if (*input_line_pointer != '\"')
2881 ++input_line_pointer;
2884 FRAG_APPEND_1_CHAR (c);
2887 demand_empty_rest_of_line ();
2892 /* XCOFF specific pseudo-op handling. */
2894 /* This is set if we are creating a .stabx symbol, since we don't want
2895 to handle symbol suffixes for such symbols. */
2896 static bfd_boolean ppc_stab_symbol;
2898 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2899 symbols in the .bss segment as though they were local common
2900 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2901 aligns .comm and .lcomm to 4 bytes. */
2907 asection *current_seg = now_seg;
2908 subsegT current_subseg = now_subseg;
2914 symbolS *lcomm_sym = NULL;
2918 name = input_line_pointer;
2919 endc = get_symbol_end ();
2920 end_name = input_line_pointer;
2923 if (*input_line_pointer != ',')
2925 as_bad (_("missing size"));
2926 ignore_rest_of_line ();
2929 ++input_line_pointer;
2931 size = get_absolute_expression ();
2934 as_bad (_("negative size"));
2935 ignore_rest_of_line ();
2941 /* The third argument to .comm is the alignment. */
2942 if (*input_line_pointer != ',')
2946 ++input_line_pointer;
2947 align = get_absolute_expression ();
2950 as_warn (_("ignoring bad alignment"));
2965 /* The third argument to .lcomm appears to be the real local
2966 common symbol to create. References to the symbol named in
2967 the first argument are turned into references to the third
2969 if (*input_line_pointer != ',')
2971 as_bad (_("missing real symbol name"));
2972 ignore_rest_of_line ();
2975 ++input_line_pointer;
2977 lcomm_name = input_line_pointer;
2978 lcomm_endc = get_symbol_end ();
2980 lcomm_sym = symbol_find_or_make (lcomm_name);
2982 *input_line_pointer = lcomm_endc;
2986 sym = symbol_find_or_make (name);
2989 if (S_IS_DEFINED (sym)
2990 || S_GET_VALUE (sym) != 0)
2992 as_bad (_("attempt to redefine symbol"));
2993 ignore_rest_of_line ();
2997 record_alignment (bss_section, align);
3000 || ! S_IS_DEFINED (lcomm_sym))
3009 S_SET_EXTERNAL (sym);
3013 symbol_get_tc (lcomm_sym)->output = 1;
3014 def_sym = lcomm_sym;
3018 subseg_set (bss_section, 1);
3019 frag_align (align, 0, 0);
3021 symbol_set_frag (def_sym, frag_now);
3022 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3023 def_size, (char *) NULL);
3025 S_SET_SEGMENT (def_sym, bss_section);
3026 symbol_get_tc (def_sym)->align = align;
3030 /* Align the size of lcomm_sym. */
3031 symbol_get_frag (lcomm_sym)->fr_offset =
3032 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3033 &~ ((1 << align) - 1));
3034 if (align > symbol_get_tc (lcomm_sym)->align)
3035 symbol_get_tc (lcomm_sym)->align = align;
3040 /* Make sym an offset from lcomm_sym. */
3041 S_SET_SEGMENT (sym, bss_section);
3042 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3043 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3044 symbol_get_frag (lcomm_sym)->fr_offset += size;
3047 subseg_set (current_seg, current_subseg);
3049 demand_empty_rest_of_line ();
3052 /* The .csect pseudo-op. This switches us into a different
3053 subsegment. The first argument is a symbol whose value is the
3054 start of the .csect. In COFF, csect symbols get special aux
3055 entries defined by the x_csect field of union internal_auxent. The
3056 optional second argument is the alignment (the default is 2). */
3060 int ignore ATTRIBUTE_UNUSED;
3067 name = input_line_pointer;
3068 endc = get_symbol_end ();
3070 sym = symbol_find_or_make (name);
3072 *input_line_pointer = endc;
3074 if (S_GET_NAME (sym)[0] == '\0')
3076 /* An unnamed csect is assumed to be [PR]. */
3077 symbol_get_tc (sym)->class = XMC_PR;
3081 if (*input_line_pointer == ',')
3083 ++input_line_pointer;
3084 align = get_absolute_expression ();
3087 ppc_change_csect (sym, align);
3089 demand_empty_rest_of_line ();
3092 /* Change to a different csect. */
3095 ppc_change_csect (sym, align)
3099 if (S_IS_DEFINED (sym))
3100 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3110 /* This is a new csect. We need to look at the symbol class to
3111 figure out whether it should go in the text section or the
3115 switch (symbol_get_tc (sym)->class)
3125 S_SET_SEGMENT (sym, text_section);
3126 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3127 ++ppc_text_subsegment;
3128 list_ptr = &ppc_text_csects;
3138 if (ppc_toc_csect != NULL
3139 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3140 == ppc_data_subsegment))
3142 S_SET_SEGMENT (sym, data_section);
3143 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3144 ++ppc_data_subsegment;
3145 list_ptr = &ppc_data_csects;
3151 /* We set the obstack chunk size to a small value before
3152 changing subsegments, so that we don't use a lot of memory
3153 space for what may be a small section. */
3154 hold_chunksize = chunksize;
3157 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3158 symbol_get_tc (sym)->subseg);
3160 chunksize = hold_chunksize;
3163 ppc_after_toc_frag = frag_now;
3165 record_alignment (sec, align);
3167 frag_align_code (align, 0);
3169 frag_align (align, 0, 0);
3171 symbol_set_frag (sym, frag_now);
3172 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3174 symbol_get_tc (sym)->align = align;
3175 symbol_get_tc (sym)->output = 1;
3176 symbol_get_tc (sym)->within = sym;
3178 for (list = *list_ptr;
3179 symbol_get_tc (list)->next != (symbolS *) NULL;
3180 list = symbol_get_tc (list)->next)
3182 symbol_get_tc (list)->next = sym;
3184 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3185 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3189 ppc_current_csect = sym;
3192 /* This function handles the .text and .data pseudo-ops. These
3193 pseudo-ops aren't really used by XCOFF; we implement them for the
3194 convenience of people who aren't used to XCOFF. */
3205 else if (type == 'd')
3210 sym = symbol_find_or_make (name);
3212 ppc_change_csect (sym, 2);
3214 demand_empty_rest_of_line ();
3217 /* This function handles the .section pseudo-op. This is mostly to
3218 give an error, since XCOFF only supports .text, .data and .bss, but
3219 we do permit the user to name the text or data section. */
3222 ppc_named_section (ignore)
3223 int ignore ATTRIBUTE_UNUSED;
3226 const char *real_name;
3230 user_name = input_line_pointer;
3231 c = get_symbol_end ();
3233 if (strcmp (user_name, ".text") == 0)
3234 real_name = ".text[PR]";
3235 else if (strcmp (user_name, ".data") == 0)
3236 real_name = ".data[RW]";
3239 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3240 *input_line_pointer = c;
3241 ignore_rest_of_line ();
3245 *input_line_pointer = c;
3247 sym = symbol_find_or_make (real_name);
3249 ppc_change_csect (sym, 2);
3251 demand_empty_rest_of_line ();
3254 /* The .extern pseudo-op. We create an undefined symbol. */
3258 int ignore ATTRIBUTE_UNUSED;
3263 name = input_line_pointer;
3264 endc = get_symbol_end ();
3266 (void) symbol_find_or_make (name);
3268 *input_line_pointer = endc;
3270 demand_empty_rest_of_line ();
3273 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3277 int ignore ATTRIBUTE_UNUSED;
3283 name = input_line_pointer;
3284 endc = get_symbol_end ();
3286 sym = symbol_find_or_make (name);
3288 *input_line_pointer = endc;
3290 symbol_get_tc (sym)->output = 1;
3292 demand_empty_rest_of_line ();
3295 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3296 although I don't know why it bothers. */
3300 int ignore ATTRIBUTE_UNUSED;
3307 name = input_line_pointer;
3308 endc = get_symbol_end ();
3310 sym = symbol_find_or_make (name);
3312 *input_line_pointer = endc;
3314 if (*input_line_pointer != ',')
3316 as_bad (_("missing rename string"));
3317 ignore_rest_of_line ();
3320 ++input_line_pointer;
3322 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3324 demand_empty_rest_of_line ();
3327 /* The .stabx pseudo-op. This is similar to a normal .stabs
3328 pseudo-op, but slightly different. A sample is
3329 .stabx "main:F-1",.main,142,0
3330 The first argument is the symbol name to create. The second is the
3331 value, and the third is the storage class. The fourth seems to be
3332 always zero, and I am assuming it is the type. */
3336 int ignore ATTRIBUTE_UNUSED;
3343 name = demand_copy_C_string (&len);
3345 if (*input_line_pointer != ',')
3347 as_bad (_("missing value"));
3350 ++input_line_pointer;
3352 ppc_stab_symbol = TRUE;
3353 sym = symbol_make (name);
3354 ppc_stab_symbol = FALSE;
3356 symbol_get_tc (sym)->real_name = name;
3358 (void) expression (&exp);
3365 as_bad (_("illegal .stabx expression; zero assumed"));
3366 exp.X_add_number = 0;
3369 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3370 symbol_set_frag (sym, &zero_address_frag);
3374 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3375 symbol_set_value_expression (sym, &exp);
3379 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3380 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3385 /* The value is some complex expression. This will probably
3386 fail at some later point, but this is probably the right
3387 thing to do here. */
3388 symbol_set_value_expression (sym, &exp);
3392 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3393 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3395 if (*input_line_pointer != ',')
3397 as_bad (_("missing class"));
3400 ++input_line_pointer;
3402 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3404 if (*input_line_pointer != ',')
3406 as_bad (_("missing type"));
3409 ++input_line_pointer;
3411 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3413 symbol_get_tc (sym)->output = 1;
3415 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3417 symbol_get_tc (sym)->within = ppc_current_block;
3422 .stabx "z",arrays_,133,0
3425 .comm arrays_,13768,3
3427 resolve_symbol_value will copy the exp's "within" into sym's when the
3428 offset is 0. Since this seems to be corner case problem,
3429 only do the correction for storage class C_STSYM. A better solution
3430 would be to have the tc field updated in ppc_symbol_new_hook. */
3432 if (exp.X_op == O_symbol)
3434 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3438 if (exp.X_op != O_symbol
3439 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3440 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3441 ppc_frob_label (sym);
3444 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3445 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3446 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3447 symbol_get_tc (ppc_current_csect)->within = sym;
3450 demand_empty_rest_of_line ();
3453 /* The .function pseudo-op. This takes several arguments. The first
3454 argument seems to be the external name of the symbol. The second
3455 argument seems to be the label for the start of the function. gcc
3456 uses the same name for both. I have no idea what the third and
3457 fourth arguments are meant to be. The optional fifth argument is
3458 an expression for the size of the function. In COFF this symbol
3459 gets an aux entry like that used for a csect. */
3462 ppc_function (ignore)
3463 int ignore ATTRIBUTE_UNUSED;
3471 name = input_line_pointer;
3472 endc = get_symbol_end ();
3474 /* Ignore any [PR] suffix. */
3475 name = ppc_canonicalize_symbol_name (name);
3476 s = strchr (name, '[');
3477 if (s != (char *) NULL
3478 && strcmp (s + 1, "PR]") == 0)
3481 ext_sym = symbol_find_or_make (name);
3483 *input_line_pointer = endc;
3485 if (*input_line_pointer != ',')
3487 as_bad (_("missing symbol name"));
3488 ignore_rest_of_line ();
3491 ++input_line_pointer;
3493 name = input_line_pointer;
3494 endc = get_symbol_end ();
3496 lab_sym = symbol_find_or_make (name);
3498 *input_line_pointer = endc;
3500 if (ext_sym != lab_sym)
3504 exp.X_op = O_symbol;
3505 exp.X_add_symbol = lab_sym;
3506 exp.X_op_symbol = NULL;
3507 exp.X_add_number = 0;
3509 symbol_set_value_expression (ext_sym, &exp);
3512 if (symbol_get_tc (ext_sym)->class == -1)
3513 symbol_get_tc (ext_sym)->class = XMC_PR;
3514 symbol_get_tc (ext_sym)->output = 1;
3516 if (*input_line_pointer == ',')
3520 /* Ignore the third argument. */
3521 ++input_line_pointer;
3522 expression (&ignore);
3523 if (*input_line_pointer == ',')
3525 /* Ignore the fourth argument. */
3526 ++input_line_pointer;
3527 expression (&ignore);
3528 if (*input_line_pointer == ',')
3530 /* The fifth argument is the function size. */
3531 ++input_line_pointer;
3532 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3535 &zero_address_frag);
3536 pseudo_set (symbol_get_tc (ext_sym)->size);
3541 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3542 SF_SET_FUNCTION (ext_sym);
3543 SF_SET_PROCESS (ext_sym);
3544 coff_add_linesym (ext_sym);
3546 demand_empty_rest_of_line ();
3549 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3550 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3551 with the correct line number */
3553 static symbolS *saved_bi_sym = 0;
3557 int ignore ATTRIBUTE_UNUSED;
3561 sym = symbol_make (".bf");
3562 S_SET_SEGMENT (sym, text_section);
3563 symbol_set_frag (sym, frag_now);
3564 S_SET_VALUE (sym, frag_now_fix ());
3565 S_SET_STORAGE_CLASS (sym, C_FCN);
3567 coff_line_base = get_absolute_expression ();
3569 S_SET_NUMBER_AUXILIARY (sym, 1);
3570 SA_SET_SYM_LNNO (sym, coff_line_base);
3572 /* Line number for bi. */
3575 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3580 symbol_get_tc (sym)->output = 1;
3582 ppc_frob_label (sym);
3584 demand_empty_rest_of_line ();
3587 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3588 ".ef", except that the line number is absolute, not relative to the
3589 most recent ".bf" symbol. */
3593 int ignore ATTRIBUTE_UNUSED;
3597 sym = symbol_make (".ef");
3598 S_SET_SEGMENT (sym, text_section);
3599 symbol_set_frag (sym, frag_now);
3600 S_SET_VALUE (sym, frag_now_fix ());
3601 S_SET_STORAGE_CLASS (sym, C_FCN);
3602 S_SET_NUMBER_AUXILIARY (sym, 1);
3603 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3604 symbol_get_tc (sym)->output = 1;
3606 ppc_frob_label (sym);
3608 demand_empty_rest_of_line ();
3611 /* The .bi and .ei pseudo-ops. These take a string argument and
3612 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3613 the symbol list. The value of .bi will be know when the next .bf
3620 static symbolS *last_biei;
3627 name = demand_copy_C_string (&len);
3629 /* The value of these symbols is actually file offset. Here we set
3630 the value to the index into the line number entries. In
3631 ppc_frob_symbols we set the fix_line field, which will cause BFD
3632 to do the right thing. */
3634 sym = symbol_make (name);
3635 /* obj-coff.c currently only handles line numbers correctly in the
3637 S_SET_SEGMENT (sym, text_section);
3638 S_SET_VALUE (sym, coff_n_line_nos);
3639 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3641 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3642 symbol_get_tc (sym)->output = 1;
3650 for (look = last_biei ? last_biei : symbol_rootP;
3651 (look != (symbolS *) NULL
3652 && (S_GET_STORAGE_CLASS (look) == C_FILE
3653 || S_GET_STORAGE_CLASS (look) == C_BINCL
3654 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3655 look = symbol_next (look))
3657 if (look != (symbolS *) NULL)
3659 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3660 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3664 demand_empty_rest_of_line ();
3667 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3668 There is one argument, which is a csect symbol. The value of the
3669 .bs symbol is the index of this csect symbol. */
3673 int ignore ATTRIBUTE_UNUSED;
3680 if (ppc_current_block != NULL)
3681 as_bad (_("nested .bs blocks"));
3683 name = input_line_pointer;
3684 endc = get_symbol_end ();
3686 csect = symbol_find_or_make (name);
3688 *input_line_pointer = endc;
3690 sym = symbol_make (".bs");
3691 S_SET_SEGMENT (sym, now_seg);
3692 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3693 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3694 symbol_get_tc (sym)->output = 1;
3696 symbol_get_tc (sym)->within = csect;
3698 ppc_frob_label (sym);
3700 ppc_current_block = sym;
3702 demand_empty_rest_of_line ();
3705 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3709 int ignore ATTRIBUTE_UNUSED;
3713 if (ppc_current_block == NULL)
3714 as_bad (_(".es without preceding .bs"));
3716 sym = symbol_make (".es");
3717 S_SET_SEGMENT (sym, now_seg);
3718 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3719 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3720 symbol_get_tc (sym)->output = 1;
3722 ppc_frob_label (sym);
3724 ppc_current_block = NULL;
3726 demand_empty_rest_of_line ();
3729 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3734 int ignore ATTRIBUTE_UNUSED;
3738 sym = symbol_make (".bb");
3739 S_SET_SEGMENT (sym, text_section);
3740 symbol_set_frag (sym, frag_now);
3741 S_SET_VALUE (sym, frag_now_fix ());
3742 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3744 S_SET_NUMBER_AUXILIARY (sym, 1);
3745 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3747 symbol_get_tc (sym)->output = 1;
3749 SF_SET_PROCESS (sym);
3751 ppc_frob_label (sym);
3753 demand_empty_rest_of_line ();
3756 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3761 int ignore ATTRIBUTE_UNUSED;
3765 sym = symbol_make (".eb");
3766 S_SET_SEGMENT (sym, text_section);
3767 symbol_set_frag (sym, frag_now);
3768 S_SET_VALUE (sym, frag_now_fix ());
3769 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3770 S_SET_NUMBER_AUXILIARY (sym, 1);
3771 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3772 symbol_get_tc (sym)->output = 1;
3774 SF_SET_PROCESS (sym);
3776 ppc_frob_label (sym);
3778 demand_empty_rest_of_line ();
3781 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
3786 int ignore ATTRIBUTE_UNUSED;
3792 name = demand_copy_C_string (&len);
3793 sym = symbol_make (name);
3794 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3795 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3796 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3797 S_SET_VALUE (sym, 0);
3798 symbol_get_tc (sym)->output = 1;
3800 ppc_frob_label (sym);
3802 demand_empty_rest_of_line ();
3805 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3809 int ignore ATTRIBUTE_UNUSED;
3813 sym = symbol_make (".ec");
3814 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3815 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3816 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3817 S_SET_VALUE (sym, 0);
3818 symbol_get_tc (sym)->output = 1;
3820 ppc_frob_label (sym);
3822 demand_empty_rest_of_line ();
3825 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3829 int ignore ATTRIBUTE_UNUSED;
3831 if (ppc_toc_csect != (symbolS *) NULL)
3832 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3839 subseg = ppc_data_subsegment;
3840 ++ppc_data_subsegment;
3842 subseg_new (segment_name (data_section), subseg);
3843 ppc_toc_frag = frag_now;
3845 sym = symbol_find_or_make ("TOC[TC0]");
3846 symbol_set_frag (sym, frag_now);
3847 S_SET_SEGMENT (sym, data_section);
3848 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3849 symbol_get_tc (sym)->subseg = subseg;
3850 symbol_get_tc (sym)->output = 1;
3851 symbol_get_tc (sym)->within = sym;
3853 ppc_toc_csect = sym;
3855 for (list = ppc_data_csects;
3856 symbol_get_tc (list)->next != (symbolS *) NULL;
3857 list = symbol_get_tc (list)->next)
3859 symbol_get_tc (list)->next = sym;
3861 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3862 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3866 ppc_current_csect = ppc_toc_csect;
3868 demand_empty_rest_of_line ();
3871 /* The AIX assembler automatically aligns the operands of a .long or
3872 .short pseudo-op, and we want to be compatible. */
3875 ppc_xcoff_cons (log_size)
3878 frag_align (log_size, 0, 0);
3879 record_alignment (now_seg, log_size);
3880 cons (1 << log_size);
3885 int dummy ATTRIBUTE_UNUSED;
3890 (void) expression (&exp);
3892 if (exp.X_op != O_constant)
3894 as_bad (_("non-constant byte count"));
3898 byte_count = exp.X_add_number;
3900 if (*input_line_pointer != ',')
3902 as_bad (_("missing value"));
3906 ++input_line_pointer;
3910 #endif /* OBJ_XCOFF */
3911 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3913 /* The .tc pseudo-op. This is used when generating either XCOFF or
3914 ELF. This takes two or more arguments.
3916 When generating XCOFF output, the first argument is the name to
3917 give to this location in the toc; this will be a symbol with class
3918 TC. The rest of the arguments are N-byte values to actually put at
3919 this location in the TOC; often there is just one more argument, a
3920 relocatable symbol reference. The size of the value to store
3921 depends on target word size. A 32-bit target uses 4-byte values, a
3922 64-bit target uses 8-byte values.
3924 When not generating XCOFF output, the arguments are the same, but
3925 the first argument is simply ignored. */
3929 int ignore ATTRIBUTE_UNUSED;
3933 /* Define the TOC symbol name. */
3939 if (ppc_toc_csect == (symbolS *) NULL
3940 || ppc_toc_csect != ppc_current_csect)
3942 as_bad (_(".tc not in .toc section"));
3943 ignore_rest_of_line ();
3947 name = input_line_pointer;
3948 endc = get_symbol_end ();
3950 sym = symbol_find_or_make (name);
3952 *input_line_pointer = endc;
3954 if (S_IS_DEFINED (sym))
3958 label = symbol_get_tc (ppc_current_csect)->within;
3959 if (symbol_get_tc (label)->class != XMC_TC0)
3961 as_bad (_(".tc with no label"));
3962 ignore_rest_of_line ();
3966 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
3967 symbol_set_frag (label, symbol_get_frag (sym));
3968 S_SET_VALUE (label, S_GET_VALUE (sym));
3970 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3971 ++input_line_pointer;
3976 S_SET_SEGMENT (sym, now_seg);
3977 symbol_set_frag (sym, frag_now);
3978 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3979 symbol_get_tc (sym)->class = XMC_TC;
3980 symbol_get_tc (sym)->output = 1;
3982 ppc_frob_label (sym);
3985 #endif /* OBJ_XCOFF */
3989 /* Skip the TOC symbol name. */
3990 while (is_part_of_name (*input_line_pointer)
3991 || *input_line_pointer == '['
3992 || *input_line_pointer == ']'
3993 || *input_line_pointer == '{'
3994 || *input_line_pointer == '}')
3995 ++input_line_pointer;
3997 /* Align to a four/eight byte boundary. */
3998 align = ppc_obj64 ? 3 : 2;
3999 frag_align (align, 0, 0);
4000 record_alignment (now_seg, align);
4001 #endif /* OBJ_ELF */
4003 if (*input_line_pointer != ',')
4004 demand_empty_rest_of_line ();
4007 ++input_line_pointer;
4008 cons (ppc_obj64 ? 8 : 4);
4012 /* Pseudo-op .machine. */
4015 ppc_machine (ignore)
4016 int ignore ATTRIBUTE_UNUSED;
4019 #define MAX_HISTORY 100
4020 static unsigned long *cpu_history;
4021 static int curr_hist;
4025 if (*input_line_pointer == '"')
4028 cpu_string = demand_copy_C_string (&len);
4033 cpu_string = input_line_pointer;
4034 c = get_symbol_end ();
4035 cpu_string = xstrdup (cpu_string);
4036 *input_line_pointer = c;
4039 if (cpu_string != NULL)
4041 unsigned long old_cpu = ppc_cpu;
4044 for (p = cpu_string; *p != 0; p++)
4047 if (strcmp (cpu_string, "push") == 0)
4049 if (cpu_history == NULL)
4050 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4052 if (curr_hist >= MAX_HISTORY)
4053 as_bad (_(".machine stack overflow"));
4055 cpu_history[curr_hist++] = ppc_cpu;
4057 else if (strcmp (cpu_string, "pop") == 0)
4060 as_bad (_(".machine stack underflow"));
4062 ppc_cpu = cpu_history[--curr_hist];
4064 else if (parse_cpu (cpu_string))
4067 as_bad (_("invalid machine `%s'"), cpu_string);
4069 if (ppc_cpu != old_cpu)
4070 ppc_setup_opcodes ();
4073 demand_empty_rest_of_line ();
4076 /* See whether a symbol is in the TOC section. */
4079 ppc_is_toc_sym (sym)
4083 return symbol_get_tc (sym)->class == XMC_TC;
4086 const char *sname = segment_name (S_GET_SEGMENT (sym));
4088 return strcmp (sname, ".toc") == 0;
4090 return strcmp (sname, ".got") == 0;
4093 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4097 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4099 /* Set the current section. */
4101 ppc_set_current_section (new)
4104 ppc_previous_section = ppc_current_section;
4105 ppc_current_section = new;
4108 /* pseudo-op: .previous
4109 behaviour: toggles the current section with the previous section.
4111 warnings: "No previous section" */
4114 ppc_previous (ignore)
4115 int ignore ATTRIBUTE_UNUSED;
4119 if (ppc_previous_section == NULL)
4121 as_warn (_("No previous section to return to. Directive ignored."));
4125 subseg_set (ppc_previous_section, 0);
4127 ppc_set_current_section (ppc_previous_section);
4130 /* pseudo-op: .pdata
4131 behaviour: predefined read only data section
4135 initial: .section .pdata "adr3"
4136 a - don't know -- maybe a misprint
4137 d - initialized data
4139 3 - double word aligned (that would be 4 byte boundary)
4142 Tag index tables (also known as the function table) for exception
4143 handling, debugging, etc. */
4147 int ignore ATTRIBUTE_UNUSED;
4149 if (pdata_section == 0)
4151 pdata_section = subseg_new (".pdata", 0);
4153 bfd_set_section_flags (stdoutput, pdata_section,
4154 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4155 | SEC_READONLY | SEC_DATA ));
4157 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4161 pdata_section = subseg_new (".pdata", 0);
4163 ppc_set_current_section (pdata_section);
4166 /* pseudo-op: .ydata
4167 behaviour: predefined read only data section
4171 initial: .section .ydata "drw3"
4172 a - don't know -- maybe a misprint
4173 d - initialized data
4175 3 - double word aligned (that would be 4 byte boundary)
4177 Tag tables (also known as the scope table) for exception handling,
4182 int ignore ATTRIBUTE_UNUSED;
4184 if (ydata_section == 0)
4186 ydata_section = subseg_new (".ydata", 0);
4187 bfd_set_section_flags (stdoutput, ydata_section,
4188 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4189 | SEC_READONLY | SEC_DATA ));
4191 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4195 ydata_section = subseg_new (".ydata", 0);
4197 ppc_set_current_section (ydata_section);
4200 /* pseudo-op: .reldata
4201 behaviour: predefined read write data section
4202 double word aligned (4-byte)
4203 FIXME: relocation is applied to it
4204 FIXME: what's the difference between this and .data?
4207 initial: .section .reldata "drw3"
4208 d - initialized data
4211 3 - double word aligned (that would be 8 byte boundary)
4214 Like .data, but intended to hold data subject to relocation, such as
4215 function descriptors, etc. */
4218 ppc_reldata (ignore)
4219 int ignore ATTRIBUTE_UNUSED;
4221 if (reldata_section == 0)
4223 reldata_section = subseg_new (".reldata", 0);
4225 bfd_set_section_flags (stdoutput, reldata_section,
4226 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4229 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4233 reldata_section = subseg_new (".reldata", 0);
4235 ppc_set_current_section (reldata_section);
4238 /* pseudo-op: .rdata
4239 behaviour: predefined read only data section
4243 initial: .section .rdata "dr3"
4244 d - initialized data
4246 3 - double word aligned (that would be 4 byte boundary) */
4250 int ignore ATTRIBUTE_UNUSED;
4252 if (rdata_section == 0)
4254 rdata_section = subseg_new (".rdata", 0);
4255 bfd_set_section_flags (stdoutput, rdata_section,
4256 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4257 | SEC_READONLY | SEC_DATA ));
4259 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4263 rdata_section = subseg_new (".rdata", 0);
4265 ppc_set_current_section (rdata_section);
4268 /* pseudo-op: .ualong
4269 behaviour: much like .int, with the exception that no alignment is
4271 FIXME: test the alignment statement
4277 int ignore ATTRIBUTE_UNUSED;
4283 /* pseudo-op: .znop <symbol name>
4284 behaviour: Issue a nop instruction
4285 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4286 the supplied symbol name.
4288 warnings: Missing symbol name */
4292 int ignore ATTRIBUTE_UNUSED;
4295 const struct powerpc_opcode *opcode;
4306 /* Strip out the symbol name. */
4307 symbol_name = input_line_pointer;
4308 c = get_symbol_end ();
4310 name = xmalloc (input_line_pointer - symbol_name + 1);
4311 strcpy (name, symbol_name);
4313 sym = symbol_find_or_make (name);
4315 *input_line_pointer = c;
4319 /* Look up the opcode in the hash table. */
4320 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4322 /* Stick in the nop. */
4323 insn = opcode->opcode;
4325 /* Write out the instruction. */
4327 md_number_to_chars (f, insn, 4);
4329 f - frag_now->fr_literal,
4334 BFD_RELOC_16_GOT_PCREL);
4347 register char *name;
4351 register symbolS *symbolP;
4354 name = input_line_pointer;
4355 c = get_symbol_end ();
4357 /* just after name is now '\0'. */
4358 p = input_line_pointer;
4361 if (*input_line_pointer != ',')
4363 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4364 ignore_rest_of_line ();
4368 input_line_pointer++; /* skip ',' */
4369 if ((temp = get_absolute_expression ()) < 0)
4371 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4372 ignore_rest_of_line ();
4378 /* The third argument to .comm is the alignment. */
4379 if (*input_line_pointer != ',')
4383 ++input_line_pointer;
4384 align = get_absolute_expression ();
4387 as_warn (_("ignoring bad alignment"));
4394 symbolP = symbol_find_or_make (name);
4397 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4399 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4400 S_GET_NAME (symbolP));
4401 ignore_rest_of_line ();
4405 if (S_GET_VALUE (symbolP))
4407 if (S_GET_VALUE (symbolP) != (valueT) temp)
4408 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4409 S_GET_NAME (symbolP),
4410 (long) S_GET_VALUE (symbolP),
4415 S_SET_VALUE (symbolP, (valueT) temp);
4416 S_SET_EXTERNAL (symbolP);
4419 demand_empty_rest_of_line ();
4423 * implement the .section pseudo op:
4424 * .section name {, "flags"}
4426 * | +--- optional flags: 'b' for bss
4428 * +-- section name 'l' for lib
4432 * 'd' (apparently m88k for data)
4434 * But if the argument is not a quoted string, treat it as a
4435 * subsegment number.
4437 * FIXME: this is a copy of the section processing from obj-coff.c, with
4438 * additions/changes for the moto-pas assembler support. There are three
4441 * FIXME: I just noticed this. This doesn't work at all really. It it
4442 * setting bits that bfd probably neither understands or uses. The
4443 * correct approach (?) will have to incorporate extra fields attached
4444 * to the section to hold the system specific stuff. (krk)
4447 * 'a' - unknown - referred to in documentation, but no definition supplied
4448 * 'c' - section has code
4449 * 'd' - section has initialized data
4450 * 'u' - section has uninitialized data
4451 * 'i' - section contains directives (info)
4452 * 'n' - section can be discarded
4453 * 'R' - remove section at link time
4455 * Section Protection:
4456 * 'r' - section is readable
4457 * 'w' - section is writeable
4458 * 'x' - section is executable
4459 * 's' - section is sharable
4461 * Section Alignment:
4462 * '0' - align to byte boundary
4463 * '1' - align to halfword undary
4464 * '2' - align to word boundary
4465 * '3' - align to doubleword boundary
4466 * '4' - align to quadword boundary
4467 * '5' - align to 32 byte boundary
4468 * '6' - align to 64 byte boundary
4473 ppc_pe_section (ignore)
4474 int ignore ATTRIBUTE_UNUSED;
4476 /* Strip out the section name. */
4485 section_name = input_line_pointer;
4486 c = get_symbol_end ();
4488 name = xmalloc (input_line_pointer - section_name + 1);
4489 strcpy (name, section_name);
4491 *input_line_pointer = c;
4496 flags = SEC_NO_FLAGS;
4498 if (strcmp (name, ".idata$2") == 0)
4502 else if (strcmp (name, ".idata$3") == 0)
4506 else if (strcmp (name, ".idata$4") == 0)
4510 else if (strcmp (name, ".idata$5") == 0)
4514 else if (strcmp (name, ".idata$6") == 0)
4519 /* Default alignment to 16 byte boundary. */
4522 if (*input_line_pointer == ',')
4524 ++input_line_pointer;
4526 if (*input_line_pointer != '"')
4527 exp = get_absolute_expression ();
4530 ++input_line_pointer;
4531 while (*input_line_pointer != '"'
4532 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4534 switch (*input_line_pointer)
4536 /* Section Contents */
4537 case 'a': /* unknown */
4538 as_bad (_("Unsupported section attribute -- 'a'"));
4540 case 'c': /* code section */
4543 case 'd': /* section has initialized data */
4546 case 'u': /* section has uninitialized data */
4547 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4551 case 'i': /* section contains directives (info) */
4552 /* FIXME: This is IMAGE_SCN_LNK_INFO
4554 flags |= SEC_HAS_CONTENTS;
4556 case 'n': /* section can be discarded */
4559 case 'R': /* Remove section at link time */
4560 flags |= SEC_NEVER_LOAD;
4563 /* Section Protection */
4564 case 'r': /* section is readable */
4565 flags |= IMAGE_SCN_MEM_READ;
4567 case 'w': /* section is writeable */
4568 flags |= IMAGE_SCN_MEM_WRITE;
4570 case 'x': /* section is executable */
4571 flags |= IMAGE_SCN_MEM_EXECUTE;
4573 case 's': /* section is sharable */
4574 flags |= IMAGE_SCN_MEM_SHARED;
4577 /* Section Alignment */
4578 case '0': /* align to byte boundary */
4579 flags |= IMAGE_SCN_ALIGN_1BYTES;
4582 case '1': /* align to halfword boundary */
4583 flags |= IMAGE_SCN_ALIGN_2BYTES;
4586 case '2': /* align to word boundary */
4587 flags |= IMAGE_SCN_ALIGN_4BYTES;
4590 case '3': /* align to doubleword boundary */
4591 flags |= IMAGE_SCN_ALIGN_8BYTES;
4594 case '4': /* align to quadword boundary */
4595 flags |= IMAGE_SCN_ALIGN_16BYTES;
4598 case '5': /* align to 32 byte boundary */
4599 flags |= IMAGE_SCN_ALIGN_32BYTES;
4602 case '6': /* align to 64 byte boundary */
4603 flags |= IMAGE_SCN_ALIGN_64BYTES;
4608 as_bad (_("unknown section attribute '%c'"),
4609 *input_line_pointer);
4612 ++input_line_pointer;
4614 if (*input_line_pointer == '"')
4615 ++input_line_pointer;
4619 sec = subseg_new (name, (subsegT) exp);
4621 ppc_set_current_section (sec);
4623 if (flags != SEC_NO_FLAGS)
4625 if (! bfd_set_section_flags (stdoutput, sec, flags))
4626 as_bad (_("error setting flags for \"%s\": %s"),
4627 bfd_section_name (stdoutput, sec),
4628 bfd_errmsg (bfd_get_error ()));
4631 bfd_set_section_alignment (stdoutput, sec, align);
4636 ppc_pe_function (ignore)
4637 int ignore ATTRIBUTE_UNUSED;
4643 name = input_line_pointer;
4644 endc = get_symbol_end ();
4646 ext_sym = symbol_find_or_make (name);
4648 *input_line_pointer = endc;
4650 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4651 SF_SET_FUNCTION (ext_sym);
4652 SF_SET_PROCESS (ext_sym);
4653 coff_add_linesym (ext_sym);
4655 demand_empty_rest_of_line ();
4659 ppc_pe_tocd (ignore)
4660 int ignore ATTRIBUTE_UNUSED;
4662 if (tocdata_section == 0)
4664 tocdata_section = subseg_new (".tocd", 0);
4665 /* FIXME: section flags won't work. */
4666 bfd_set_section_flags (stdoutput, tocdata_section,
4667 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4668 | SEC_READONLY | SEC_DATA));
4670 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4674 rdata_section = subseg_new (".tocd", 0);
4677 ppc_set_current_section (tocdata_section);
4679 demand_empty_rest_of_line ();
4682 /* Don't adjust TOC relocs to use the section symbol. */
4685 ppc_pe_fix_adjustable (fix)
4688 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4695 /* XCOFF specific symbol and file handling. */
4697 /* Canonicalize the symbol name. We use the to force the suffix, if
4698 any, to use square brackets, and to be in upper case. */
4701 ppc_canonicalize_symbol_name (name)
4706 if (ppc_stab_symbol)
4709 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4723 for (s++; *s != '\0' && *s != brac; s++)
4726 if (*s == '\0' || s[1] != '\0')
4727 as_bad (_("bad symbol suffix"));
4735 /* Set the class of a symbol based on the suffix, if any. This is
4736 called whenever a new symbol is created. */
4739 ppc_symbol_new_hook (sym)
4742 struct ppc_tc_sy *tc;
4745 tc = symbol_get_tc (sym);
4749 tc->real_name = NULL;
4755 if (ppc_stab_symbol)
4758 s = strchr (S_GET_NAME (sym), '[');
4759 if (s == (const char *) NULL)
4761 /* There is no suffix. */
4770 if (strcmp (s, "BS]") == 0)
4774 if (strcmp (s, "DB]") == 0)
4776 else if (strcmp (s, "DS]") == 0)
4780 if (strcmp (s, "GL]") == 0)
4784 if (strcmp (s, "PR]") == 0)
4788 if (strcmp (s, "RO]") == 0)
4790 else if (strcmp (s, "RW]") == 0)
4794 if (strcmp (s, "SV]") == 0)
4798 if (strcmp (s, "TC]") == 0)
4800 else if (strcmp (s, "TI]") == 0)
4802 else if (strcmp (s, "TB]") == 0)
4804 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4805 tc->class = XMC_TC0;
4808 if (strcmp (s, "UA]") == 0)
4810 else if (strcmp (s, "UC]") == 0)
4814 if (strcmp (s, "XO]") == 0)
4819 if (tc->class == -1)
4820 as_bad (_("Unrecognized symbol suffix"));
4823 /* Set the class of a label based on where it is defined. This
4824 handles symbols without suffixes. Also, move the symbol so that it
4825 follows the csect symbol. */
4828 ppc_frob_label (sym)
4831 if (ppc_current_csect != (symbolS *) NULL)
4833 if (symbol_get_tc (sym)->class == -1)
4834 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4836 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4837 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4838 &symbol_rootP, &symbol_lastP);
4839 symbol_get_tc (ppc_current_csect)->within = sym;
4843 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4844 seen. It tells ppc_adjust_symtab whether it needs to look through
4847 static bfd_boolean ppc_saw_abs;
4849 /* Change the name of a symbol just before writing it out. Set the
4850 real name if the .rename pseudo-op was used. Otherwise, remove any
4851 class suffix. Return 1 if the symbol should not be included in the
4855 ppc_frob_symbol (sym)
4858 static symbolS *ppc_last_function;
4859 static symbolS *set_end;
4861 /* Discard symbols that should not be included in the output symbol
4863 if (! symbol_used_in_reloc_p (sym)
4864 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4865 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4866 && ! symbol_get_tc (sym)->output
4867 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4870 /* This one will disappear anyway. Don't make a csect sym for it. */
4871 if (sym == abs_section_sym)
4874 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4875 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4881 name = S_GET_NAME (sym);
4882 s = strchr (name, '[');
4883 if (s != (char *) NULL)
4889 snew = xmalloc (len + 1);
4890 memcpy (snew, name, len);
4893 S_SET_NAME (sym, snew);
4897 if (set_end != (symbolS *) NULL)
4899 SA_SET_SYM_ENDNDX (set_end, sym);
4903 if (SF_GET_FUNCTION (sym))
4905 if (ppc_last_function != (symbolS *) NULL)
4906 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4907 ppc_last_function = sym;
4908 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4910 resolve_symbol_value (symbol_get_tc (sym)->size);
4911 SA_SET_SYM_FSIZE (sym,
4912 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4915 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4916 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4918 if (ppc_last_function == (symbolS *) NULL)
4919 as_bad (_(".ef with no preceding .function"));
4922 set_end = ppc_last_function;
4923 ppc_last_function = NULL;
4925 /* We don't have a C_EFCN symbol, but we need to force the
4926 COFF backend to believe that it has seen one. */
4927 coff_last_function = NULL;
4931 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
4932 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
4933 && S_GET_STORAGE_CLASS (sym) != C_FILE
4934 && S_GET_STORAGE_CLASS (sym) != C_FCN
4935 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4936 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4937 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4938 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4939 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4940 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4941 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4943 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4944 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4947 union internal_auxent *a;
4949 /* Create a csect aux. */
4950 i = S_GET_NUMBER_AUXILIARY (sym);
4951 S_SET_NUMBER_AUXILIARY (sym, i + 1);
4952 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4953 if (symbol_get_tc (sym)->class == XMC_TC0)
4955 /* This is the TOC table. */
4956 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4957 a->x_csect.x_scnlen.l = 0;
4958 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4960 else if (symbol_get_tc (sym)->subseg != 0)
4962 /* This is a csect symbol. x_scnlen is the size of the
4964 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
4965 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4966 S_GET_SEGMENT (sym))
4967 - S_GET_VALUE (sym));
4970 resolve_symbol_value (symbol_get_tc (sym)->next);
4971 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
4972 - S_GET_VALUE (sym));
4974 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
4976 else if (S_GET_SEGMENT (sym) == bss_section)
4978 /* This is a common symbol. */
4979 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4980 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
4981 if (S_IS_EXTERNAL (sym))
4982 symbol_get_tc (sym)->class = XMC_RW;
4984 symbol_get_tc (sym)->class = XMC_BS;
4986 else if (S_GET_SEGMENT (sym) == absolute_section)
4988 /* This is an absolute symbol. The csect will be created by
4989 ppc_adjust_symtab. */
4991 a->x_csect.x_smtyp = XTY_LD;
4992 if (symbol_get_tc (sym)->class == -1)
4993 symbol_get_tc (sym)->class = XMC_XO;
4995 else if (! S_IS_DEFINED (sym))
4997 /* This is an external symbol. */
4998 a->x_csect.x_scnlen.l = 0;
4999 a->x_csect.x_smtyp = XTY_ER;
5001 else if (symbol_get_tc (sym)->class == XMC_TC)
5005 /* This is a TOC definition. x_scnlen is the size of the
5007 next = symbol_next (sym);
5008 while (symbol_get_tc (next)->class == XMC_TC0)
5009 next = symbol_next (next);
5010 if (next == (symbolS *) NULL
5011 || symbol_get_tc (next)->class != XMC_TC)
5013 if (ppc_after_toc_frag == (fragS *) NULL)
5014 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5016 - S_GET_VALUE (sym));
5018 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5019 - S_GET_VALUE (sym));
5023 resolve_symbol_value (next);
5024 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5025 - S_GET_VALUE (sym));
5027 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5033 /* This is a normal symbol definition. x_scnlen is the
5034 symbol index of the containing csect. */
5035 if (S_GET_SEGMENT (sym) == text_section)
5036 csect = ppc_text_csects;
5037 else if (S_GET_SEGMENT (sym) == data_section)
5038 csect = ppc_data_csects;
5042 /* Skip the initial dummy symbol. */
5043 csect = symbol_get_tc (csect)->next;
5045 if (csect == (symbolS *) NULL)
5047 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5048 a->x_csect.x_scnlen.l = 0;
5052 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5054 resolve_symbol_value (symbol_get_tc (csect)->next);
5055 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5056 > S_GET_VALUE (sym))
5058 csect = symbol_get_tc (csect)->next;
5061 a->x_csect.x_scnlen.p =
5062 coffsymbol (symbol_get_bfdsym (csect))->native;
5063 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5066 a->x_csect.x_smtyp = XTY_LD;
5069 a->x_csect.x_parmhash = 0;
5070 a->x_csect.x_snhash = 0;
5071 if (symbol_get_tc (sym)->class == -1)
5072 a->x_csect.x_smclas = XMC_PR;
5074 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5075 a->x_csect.x_stab = 0;
5076 a->x_csect.x_snstab = 0;
5078 /* Don't let the COFF backend resort these symbols. */
5079 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5081 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5083 /* We want the value to be the symbol index of the referenced
5084 csect symbol. BFD will do that for us if we set the right
5086 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5087 combined_entry_type *c = coffsymbol (bsym)->native;
5089 S_SET_VALUE (sym, (valueT) (size_t) c);
5090 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5092 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5097 /* The value is the offset from the enclosing csect. */
5098 block = symbol_get_tc (sym)->within;
5099 csect = symbol_get_tc (block)->within;
5100 resolve_symbol_value (csect);
5101 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5103 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5104 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5106 /* We want the value to be a file offset into the line numbers.
5107 BFD will do that for us if we set the right flags. We have
5108 already set the value correctly. */
5109 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5115 /* Adjust the symbol table. This creates csect symbols for all
5116 absolute symbols. */
5119 ppc_adjust_symtab ()
5126 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5130 union internal_auxent *a;
5132 if (S_GET_SEGMENT (sym) != absolute_section)
5135 csect = symbol_create (".abs[XO]", absolute_section,
5136 S_GET_VALUE (sym), &zero_address_frag);
5137 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5138 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5139 i = S_GET_NUMBER_AUXILIARY (csect);
5140 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5141 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5142 a->x_csect.x_scnlen.l = 0;
5143 a->x_csect.x_smtyp = XTY_SD;
5144 a->x_csect.x_parmhash = 0;
5145 a->x_csect.x_snhash = 0;
5146 a->x_csect.x_smclas = XMC_XO;
5147 a->x_csect.x_stab = 0;
5148 a->x_csect.x_snstab = 0;
5150 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5152 i = S_GET_NUMBER_AUXILIARY (sym);
5153 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5154 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5155 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5158 ppc_saw_abs = FALSE;
5161 /* Set the VMA for a section. This is called on all the sections in
5165 ppc_frob_section (sec)
5168 static bfd_vma vma = 0;
5170 vma = md_section_align (sec, vma);
5171 bfd_set_section_vma (stdoutput, sec, vma);
5172 vma += bfd_section_size (stdoutput, sec);
5175 #endif /* OBJ_XCOFF */
5177 /* Turn a string in input_line_pointer into a floating point constant
5178 of type TYPE, and store the appropriate bytes in *LITP. The number
5179 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5180 returned, or NULL on OK. */
5183 md_atof (type, litp, sizep)
5189 LITTLENUM_TYPE words[4];
5205 return _("bad call to md_atof");
5208 t = atof_ieee (input_line_pointer, type, words);
5210 input_line_pointer = t;
5214 if (target_big_endian)
5216 for (i = 0; i < prec; i++)
5218 md_number_to_chars (litp, (valueT) words[i], 2);
5224 for (i = prec - 1; i >= 0; i--)
5226 md_number_to_chars (litp, (valueT) words[i], 2);
5234 /* Write a value out to the object file, using the appropriate
5238 md_number_to_chars (buf, val, n)
5243 if (target_big_endian)
5244 number_to_chars_bigendian (buf, val, n);
5246 number_to_chars_littleendian (buf, val, n);
5249 /* Align a section (I don't know why this is machine dependent). */
5252 md_section_align (seg, addr)
5256 int align = bfd_get_section_alignment (stdoutput, seg);
5258 return ((addr + (1 << align) - 1) & (-1 << align));
5261 /* We don't have any form of relaxing. */
5264 md_estimate_size_before_relax (fragp, seg)
5265 fragS *fragp ATTRIBUTE_UNUSED;
5266 asection *seg ATTRIBUTE_UNUSED;
5272 /* Convert a machine dependent frag. We never generate these. */
5275 md_convert_frag (abfd, sec, fragp)
5276 bfd *abfd ATTRIBUTE_UNUSED;
5277 asection *sec ATTRIBUTE_UNUSED;
5278 fragS *fragp ATTRIBUTE_UNUSED;
5283 /* We have no need to default values of symbols. */
5286 md_undefined_symbol (name)
5287 char *name ATTRIBUTE_UNUSED;
5292 /* Functions concerning relocs. */
5294 /* The location from which a PC relative jump should be calculated,
5295 given a PC relative reloc. */
5298 md_pcrel_from_section (fixp, sec)
5300 segT sec ATTRIBUTE_UNUSED;
5302 return fixp->fx_frag->fr_address + fixp->fx_where;
5307 /* This is called to see whether a fixup should be adjusted to use a
5308 section symbol. We take the opportunity to change a fixup against
5309 a symbol in the TOC subsegment into a reloc against the
5310 corresponding .tc symbol. */
5313 ppc_fix_adjustable (fix)
5316 valueT val = resolve_symbol_value (fix->fx_addsy);
5317 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5318 TC_SYMFIELD_TYPE *tc;
5320 if (symseg == absolute_section)
5323 if (ppc_toc_csect != (symbolS *) NULL
5324 && fix->fx_addsy != ppc_toc_csect
5325 && symseg == data_section
5326 && val >= ppc_toc_frag->fr_address
5327 && (ppc_after_toc_frag == (fragS *) NULL
5328 || val < ppc_after_toc_frag->fr_address))
5332 for (sy = symbol_next (ppc_toc_csect);
5333 sy != (symbolS *) NULL;
5334 sy = symbol_next (sy))
5336 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5338 if (sy_tc->class == XMC_TC0)
5340 if (sy_tc->class != XMC_TC)
5342 if (val == resolve_symbol_value (sy))
5345 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5350 as_bad_where (fix->fx_file, fix->fx_line,
5351 _("symbol in .toc does not match any .tc"));
5354 /* Possibly adjust the reloc to be against the csect. */
5355 tc = symbol_get_tc (fix->fx_addsy);
5357 && tc->class != XMC_TC0
5358 && tc->class != XMC_TC
5359 && symseg != bss_section
5360 /* Don't adjust if this is a reloc in the toc section. */
5361 && (symseg != data_section
5362 || ppc_toc_csect == NULL
5363 || val < ppc_toc_frag->fr_address
5364 || (ppc_after_toc_frag != NULL
5365 && val >= ppc_after_toc_frag->fr_address)))
5368 symbolS *next_csect;
5370 if (symseg == text_section)
5371 csect = ppc_text_csects;
5372 else if (symseg == data_section)
5373 csect = ppc_data_csects;
5377 /* Skip the initial dummy symbol. */
5378 csect = symbol_get_tc (csect)->next;
5380 if (csect != (symbolS *) NULL)
5382 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5383 && (symbol_get_frag (next_csect)->fr_address <= val))
5385 /* If the csect address equals the symbol value, then we
5386 have to look through the full symbol table to see
5387 whether this is the csect we want. Note that we will
5388 only get here if the csect has zero length. */
5389 if (symbol_get_frag (csect)->fr_address == val
5390 && S_GET_VALUE (csect) == val)
5394 for (scan = symbol_next (csect);
5396 scan = symbol_next (scan))
5398 if (symbol_get_tc (scan)->subseg != 0)
5400 if (scan == fix->fx_addsy)
5404 /* If we found the symbol before the next csect
5405 symbol, then this is the csect we want. */
5406 if (scan == fix->fx_addsy)
5413 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5414 fix->fx_addsy = csect;
5419 /* Adjust a reloc against a .lcomm symbol to be against the base
5421 if (symseg == bss_section
5422 && ! S_IS_EXTERNAL (fix->fx_addsy))
5424 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5426 fix->fx_offset += val - resolve_symbol_value (sy);
5433 /* A reloc from one csect to another must be kept. The assembler
5434 will, of course, keep relocs between sections, and it will keep
5435 absolute relocs, but we need to force it to keep PC relative relocs
5436 between two csects in the same section. */
5439 ppc_force_relocation (fix)
5442 /* At this point fix->fx_addsy should already have been converted to
5443 a csect symbol. If the csect does not include the fragment, then
5444 we need to force the relocation. */
5446 && fix->fx_addsy != NULL
5447 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5448 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5449 > fix->fx_frag->fr_address)
5450 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5451 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5452 <= fix->fx_frag->fr_address))))
5455 return generic_force_reloc (fix);
5458 #endif /* OBJ_XCOFF */
5461 /* If this function returns non-zero, it guarantees that a relocation
5462 will be emitted for a fixup. */
5465 ppc_force_relocation (fix)
5468 /* Branch prediction relocations must force a relocation, as must
5469 the vtable description relocs. */
5470 switch (fix->fx_r_type)
5472 case BFD_RELOC_PPC_B16_BRTAKEN:
5473 case BFD_RELOC_PPC_B16_BRNTAKEN:
5474 case BFD_RELOC_PPC_BA16_BRTAKEN:
5475 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5476 case BFD_RELOC_24_PLT_PCREL:
5477 case BFD_RELOC_PPC64_TOC:
5483 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5484 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5487 return generic_force_reloc (fix);
5491 ppc_fix_adjustable (fix)
5494 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5495 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5496 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5497 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5498 && fix->fx_r_type != BFD_RELOC_GPREL16
5499 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5500 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5501 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5502 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5506 /* Apply a fixup to the object code. This is called for all the
5507 fixups we generated by the call to fix_new_exp, above. In the call
5508 above we used a reloc code which was the largest legal reloc code
5509 plus the operand index. Here we undo that to recover the operand
5510 index. At this point all symbol values should be fully resolved,
5511 and we attempt to completely resolve the reloc. If we can not do
5512 that, we determine the correct reloc code and put it back in the
5516 md_apply_fix (fixP, valP, seg)
5519 segT seg ATTRIBUTE_UNUSED;
5521 valueT value = * valP;
5524 if (fixP->fx_addsy != NULL)
5526 /* Hack around bfd_install_relocation brain damage. */
5528 value += fixP->fx_frag->fr_address + fixP->fx_where;
5533 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5534 the symbol values. If we are doing this relocation the code in
5535 write.c is going to call bfd_install_relocation, which is also
5536 going to use the symbol value. That means that if the reloc is
5537 fully resolved we want to use *valP since bfd_install_relocation is
5539 However, if the reloc is not fully resolved we do not want to use
5540 *valP, and must use fx_offset instead. However, if the reloc
5541 is PC relative, we do want to use *valP since it includes the
5542 result of md_pcrel_from. This is confusing. */
5543 if (fixP->fx_addsy == (symbolS *) NULL)
5546 else if (fixP->fx_pcrel)
5550 value = fixP->fx_offset;
5553 if (fixP->fx_subsy != (symbolS *) NULL)
5555 /* We can't actually support subtracting a symbol. */
5556 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5559 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5562 const struct powerpc_operand *operand;
5566 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5568 operand = &powerpc_operands[opindex];
5571 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5572 does not generate a reloc. It uses the offset of `sym' within its
5573 csect. Other usages, such as `.long sym', generate relocs. This
5574 is the documented behaviour of non-TOC symbols. */
5575 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5576 && operand->bits == 16
5577 && operand->shift == 0
5578 && (operand->insert == NULL || ppc_obj64)
5579 && fixP->fx_addsy != NULL
5580 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5581 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5582 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5583 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5585 value = fixP->fx_offset;
5590 /* Fetch the instruction, insert the fully resolved operand
5591 value, and stuff the instruction back again. */
5592 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5593 if (target_big_endian)
5594 insn = bfd_getb32 ((unsigned char *) where);
5596 insn = bfd_getl32 ((unsigned char *) where);
5597 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5598 fixP->fx_file, fixP->fx_line);
5599 if (target_big_endian)
5600 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5602 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5605 /* Nothing else to do here. */
5608 assert (fixP->fx_addsy != NULL);
5610 /* Determine a BFD reloc value based on the operand information.
5611 We are only prepared to turn a few of the operands into
5613 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5614 && operand->bits == 26
5615 && operand->shift == 0)
5616 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5617 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5618 && operand->bits == 16
5619 && operand->shift == 0)
5621 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5624 if (target_big_endian)
5625 fixP->fx_where += 2;
5628 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5629 && operand->bits == 26
5630 && operand->shift == 0)
5631 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5632 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5633 && operand->bits == 16
5634 && operand->shift == 0)
5636 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5639 if (target_big_endian)
5640 fixP->fx_where += 2;
5643 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5644 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5645 && operand->bits == 16
5646 && operand->shift == 0)
5648 if (ppc_is_toc_sym (fixP->fx_addsy))
5650 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5653 && (operand->flags & PPC_OPERAND_DS) != 0)
5654 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5659 fixP->fx_r_type = BFD_RELOC_16;
5662 && (operand->flags & PPC_OPERAND_DS) != 0)
5663 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5667 if (target_big_endian)
5668 fixP->fx_where += 2;
5670 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5676 /* Use expr_symbol_where to see if this is an expression
5678 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5679 as_bad_where (fixP->fx_file, fixP->fx_line,
5680 _("unresolved expression that must be resolved"));
5682 as_bad_where (fixP->fx_file, fixP->fx_line,
5683 _("unsupported relocation against %s"),
5684 S_GET_NAME (fixP->fx_addsy));
5692 ppc_elf_validate_fix (fixP, seg);
5694 switch (fixP->fx_r_type)
5696 case BFD_RELOC_CTOR:
5703 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5707 case BFD_RELOC_32_PCREL:
5708 case BFD_RELOC_PPC_EMB_NADDR32:
5709 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5716 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5719 case BFD_RELOC_64_PCREL:
5720 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5724 case BFD_RELOC_GPREL16:
5725 case BFD_RELOC_16_GOT_PCREL:
5726 case BFD_RELOC_16_GOTOFF:
5727 case BFD_RELOC_LO16_GOTOFF:
5728 case BFD_RELOC_HI16_GOTOFF:
5729 case BFD_RELOC_HI16_S_GOTOFF:
5730 case BFD_RELOC_16_BASEREL:
5731 case BFD_RELOC_LO16_BASEREL:
5732 case BFD_RELOC_HI16_BASEREL:
5733 case BFD_RELOC_HI16_S_BASEREL:
5734 case BFD_RELOC_PPC_EMB_NADDR16:
5735 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5736 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5737 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5738 case BFD_RELOC_PPC_EMB_SDAI16:
5739 case BFD_RELOC_PPC_EMB_SDA2REL:
5740 case BFD_RELOC_PPC_EMB_SDA2I16:
5741 case BFD_RELOC_PPC_EMB_RELSEC16:
5742 case BFD_RELOC_PPC_EMB_RELST_LO:
5743 case BFD_RELOC_PPC_EMB_RELST_HI:
5744 case BFD_RELOC_PPC_EMB_RELST_HA:
5745 case BFD_RELOC_PPC_EMB_RELSDA:
5746 case BFD_RELOC_PPC_TOC16:
5748 case BFD_RELOC_PPC64_TOC16_LO:
5749 case BFD_RELOC_PPC64_TOC16_HI:
5750 case BFD_RELOC_PPC64_TOC16_HA:
5754 if (fixP->fx_addsy != NULL)
5755 as_bad_where (fixP->fx_file, fixP->fx_line,
5756 _("cannot emit PC relative %s relocation against %s"),
5757 bfd_get_reloc_code_name (fixP->fx_r_type),
5758 S_GET_NAME (fixP->fx_addsy));
5760 as_bad_where (fixP->fx_file, fixP->fx_line,
5761 _("cannot emit PC relative %s relocation"),
5762 bfd_get_reloc_code_name (fixP->fx_r_type));
5765 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5771 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5774 case BFD_RELOC_16_PCREL:
5775 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5779 case BFD_RELOC_LO16:
5781 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
5784 case BFD_RELOC_LO16_PCREL:
5785 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5789 /* This case happens when you write, for example,
5791 where L1 and L2 are defined later. */
5792 case BFD_RELOC_HI16:
5794 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
5797 case BFD_RELOC_HI16_PCREL:
5798 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5802 case BFD_RELOC_HI16_S:
5804 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
5807 case BFD_RELOC_HI16_S_PCREL:
5808 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5813 case BFD_RELOC_PPC64_HIGHER:
5816 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5817 PPC_HIGHER (value), 2);
5820 case BFD_RELOC_PPC64_HIGHER_S:
5823 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5824 PPC_HIGHERA (value), 2);
5827 case BFD_RELOC_PPC64_HIGHEST:
5830 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5831 PPC_HIGHEST (value), 2);
5834 case BFD_RELOC_PPC64_HIGHEST_S:
5837 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5838 PPC_HIGHESTA (value), 2);
5841 case BFD_RELOC_PPC64_ADDR16_DS:
5842 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5843 case BFD_RELOC_PPC64_GOT16_DS:
5844 case BFD_RELOC_PPC64_GOT16_LO_DS:
5845 case BFD_RELOC_PPC64_PLT16_LO_DS:
5846 case BFD_RELOC_PPC64_SECTOFF_DS:
5847 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5848 case BFD_RELOC_PPC64_TOC16_DS:
5849 case BFD_RELOC_PPC64_TOC16_LO_DS:
5850 case BFD_RELOC_PPC64_PLTGOT16_DS:
5851 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5855 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5856 unsigned long val, mask;
5858 if (target_big_endian)
5859 val = bfd_getb32 (where - 2);
5861 val = bfd_getl32 (where);
5863 /* lq insns reserve the four lsbs. */
5864 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5865 && (val & (0x3f << 26)) == (56u << 26))
5867 val |= value & mask;
5868 if (target_big_endian)
5869 bfd_putb16 ((bfd_vma) val, where);
5871 bfd_putl16 ((bfd_vma) val, where);
5875 case BFD_RELOC_PPC_B16_BRTAKEN:
5876 case BFD_RELOC_PPC_B16_BRNTAKEN:
5877 case BFD_RELOC_PPC_BA16_BRTAKEN:
5878 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5881 case BFD_RELOC_PPC_TLS:
5884 case BFD_RELOC_PPC_DTPMOD:
5885 case BFD_RELOC_PPC_TPREL16:
5886 case BFD_RELOC_PPC_TPREL16_LO:
5887 case BFD_RELOC_PPC_TPREL16_HI:
5888 case BFD_RELOC_PPC_TPREL16_HA:
5889 case BFD_RELOC_PPC_TPREL:
5890 case BFD_RELOC_PPC_DTPREL16:
5891 case BFD_RELOC_PPC_DTPREL16_LO:
5892 case BFD_RELOC_PPC_DTPREL16_HI:
5893 case BFD_RELOC_PPC_DTPREL16_HA:
5894 case BFD_RELOC_PPC_DTPREL:
5895 case BFD_RELOC_PPC_GOT_TLSGD16:
5896 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5897 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5898 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5899 case BFD_RELOC_PPC_GOT_TLSLD16:
5900 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5901 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5902 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5903 case BFD_RELOC_PPC_GOT_TPREL16:
5904 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5905 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5906 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5907 case BFD_RELOC_PPC_GOT_DTPREL16:
5908 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5909 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5910 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5911 case BFD_RELOC_PPC64_TPREL16_DS:
5912 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5913 case BFD_RELOC_PPC64_TPREL16_HIGHER:
5914 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
5915 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
5916 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
5917 case BFD_RELOC_PPC64_DTPREL16_DS:
5918 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
5919 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
5920 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
5921 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
5922 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
5923 S_SET_THREAD_LOCAL (fixP->fx_addsy);
5926 /* Because SDA21 modifies the register field, the size is set to 4
5927 bytes, rather than 2, so offset it here appropriately. */
5928 case BFD_RELOC_PPC_EMB_SDA21:
5932 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
5933 + ((target_big_endian) ? 2 : 0),
5940 /* This can occur if there is a bug in the input assembler, eg:
5941 ".byte <undefined_symbol> - ." */
5943 as_bad (_("Unable to handle reference to symbol %s"),
5944 S_GET_NAME (fixP->fx_addsy));
5946 as_bad (_("Unable to resolve expression"));
5950 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5954 case BFD_RELOC_24_PLT_PCREL:
5955 case BFD_RELOC_PPC_LOCAL24PC:
5956 if (!fixP->fx_pcrel && !fixP->fx_done)
5964 /* Fetch the instruction, insert the fully resolved operand
5965 value, and stuff the instruction back again. */
5966 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5967 if (target_big_endian)
5968 insn = bfd_getb32 ((unsigned char *) where);
5970 insn = bfd_getl32 ((unsigned char *) where);
5971 if ((value & 3) != 0)
5972 as_bad_where (fixP->fx_file, fixP->fx_line,
5973 _("must branch to an address a multiple of 4"));
5974 if ((offsetT) value < -0x40000000
5975 || (offsetT) value >= 0x40000000)
5976 as_bad_where (fixP->fx_file, fixP->fx_line,
5977 _("@local or @plt branch destination is too far away, %ld bytes"),
5979 insn = insn | (value & 0x03fffffc);
5980 if (target_big_endian)
5981 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5983 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5987 case BFD_RELOC_VTABLE_INHERIT:
5990 && !S_IS_DEFINED (fixP->fx_addsy)
5991 && !S_IS_WEAK (fixP->fx_addsy))
5992 S_SET_WEAK (fixP->fx_addsy);
5995 case BFD_RELOC_VTABLE_ENTRY:
6000 /* Generated by reference to `sym@tocbase'. The sym is
6001 ignored by the linker. */
6002 case BFD_RELOC_PPC64_TOC:
6008 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6015 fixP->fx_addnumber = value;
6017 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6018 from the section contents. If we are going to be emitting a reloc
6019 then the section contents are immaterial, so don't warn if they
6020 happen to overflow. Leave such warnings to ld. */
6022 fixP->fx_no_overflow = 1;
6024 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6025 fixP->fx_addnumber = 0;
6029 fixP->fx_addnumber = 0;
6031 /* We want to use the offset within the data segment of the
6032 symbol, not the actual VMA of the symbol. */
6033 fixP->fx_addnumber =
6034 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
6040 /* Generate a reloc for a fixup. */
6043 tc_gen_reloc (seg, fixp)
6044 asection *seg ATTRIBUTE_UNUSED;
6049 reloc = (arelent *) xmalloc (sizeof (arelent));
6051 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6052 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6053 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6054 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6055 if (reloc->howto == (reloc_howto_type *) NULL)
6057 as_bad_where (fixp->fx_file, fixp->fx_line,
6058 _("reloc %d not supported by object file format"),
6059 (int) fixp->fx_r_type);
6062 reloc->addend = fixp->fx_addnumber;
6068 ppc_cfi_frame_initial_instructions ()
6070 cfi_add_CFA_def_cfa (1, 0);
6074 tc_ppc_regname_to_dw2regnum (const char *regname)
6076 unsigned int regnum = -1;
6080 static struct { char *name; int dw2regnum; } regnames[] =
6082 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6083 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6084 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6085 { "spe_acc", 111 }, { "spefscr", 112 }
6088 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6089 if (strcmp (regnames[i].name, regname) == 0)
6090 return regnames[i].dw2regnum;
6092 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6094 p = regname + 1 + (regname[1] == '.');
6095 regnum = strtoul (p, &q, 10);
6096 if (p == q || *q || regnum >= 32)
6098 if (regname[0] == 'f')
6100 else if (regname[0] == 'v')
6103 else if (regname[0] == 'c' && regname[1] == 'r')
6105 p = regname + 2 + (regname[2] == '.');
6106 if (p[0] < '0' || p[0] > '7' || p[1])
6108 regnum = p[0] - '0' + 68;