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 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, 59 Temple Place - Suite 330, 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, "altivec") == 0)
864 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_ALTIVEC;
866 ppc_cpu |= PPC_OPCODE_ALTIVEC;
868 else if (strcmp (arg, "e500") == 0 || strcmp (arg, "e500x2") == 0)
870 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_SPE
871 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS | PPC_OPCODE_BRLOCK
872 | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
875 else if (strcmp (arg, "spe") == 0)
878 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_SPE | PPC_OPCODE_EFS;
880 ppc_cpu |= PPC_OPCODE_SPE;
882 /* -mppc64 and -m620 mean to assemble for the 64-bit PowerPC
884 else if (strcmp (arg, "ppc64") == 0 || strcmp (arg, "620") == 0)
886 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
888 else if (strcmp (arg, "ppc64bridge") == 0)
890 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
891 | PPC_OPCODE_64_BRIDGE | PPC_OPCODE_64);
893 /* -mbooke/-mbooke32 mean enable 32-bit BookE support. */
894 else if (strcmp (arg, "booke") == 0 || strcmp (arg, "booke32") == 0)
896 ppc_cpu = PPC_OPCODE_PPC | PPC_OPCODE_BOOKE | PPC_OPCODE_32;
898 /* -mbooke64 means enable 64-bit BookE support. */
899 else if (strcmp (arg, "booke64") == 0)
901 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_BOOKE
902 | PPC_OPCODE_BOOKE64 | PPC_OPCODE_64);
904 else if (strcmp (arg, "power4") == 0)
906 ppc_cpu = (PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC
907 | PPC_OPCODE_64 | PPC_OPCODE_POWER4);
909 /* -mcom means assemble for the common intersection between Power
910 and PowerPC. At present, we just allow the union, rather
911 than the intersection. */
912 else if (strcmp (arg, "com") == 0)
913 ppc_cpu = PPC_OPCODE_COMMON | PPC_OPCODE_32;
914 /* -many means to assemble for any architecture (PWR/PWRX/PPC). */
915 else if (strcmp (arg, "any") == 0)
916 ppc_cpu |= PPC_OPCODE_ANY;
924 md_parse_option (c, arg)
931 /* -u means that any undefined symbols should be treated as
932 external, which is the default for gas anyhow. */
937 /* Solaris as takes -le (presumably for little endian). For completeness
938 sake, recognize -be also. */
939 if (strcmp (arg, "e") == 0)
941 target_big_endian = 0;
942 set_target_endian = 1;
950 if (strcmp (arg, "e") == 0)
952 target_big_endian = 1;
953 set_target_endian = 1;
961 /* Recognize -K PIC. */
962 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
965 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
973 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
975 if (strcmp (arg, "64") == 0)
980 as_fatal (_("%s unsupported"), "-a64");
983 else if (strcmp (arg, "32") == 0)
993 else if (strcmp (arg, "regnames") == 0)
996 else if (strcmp (arg, "no-regnames") == 0)
1000 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1001 that require relocation. */
1002 else if (strcmp (arg, "relocatable") == 0)
1004 shlib = SHLIB_MRELOCATABLE;
1005 ppc_flags |= EF_PPC_RELOCATABLE;
1008 else if (strcmp (arg, "relocatable-lib") == 0)
1010 shlib = SHLIB_MRELOCATABLE;
1011 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1014 /* -memb, set embedded bit. */
1015 else if (strcmp (arg, "emb") == 0)
1016 ppc_flags |= EF_PPC_EMB;
1018 /* -mlittle/-mbig set the endianess. */
1019 else if (strcmp (arg, "little") == 0
1020 || strcmp (arg, "little-endian") == 0)
1022 target_big_endian = 0;
1023 set_target_endian = 1;
1026 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1028 target_big_endian = 1;
1029 set_target_endian = 1;
1032 else if (strcmp (arg, "solaris") == 0)
1035 ppc_comment_chars = ppc_solaris_comment_chars;
1038 else if (strcmp (arg, "no-solaris") == 0)
1041 ppc_comment_chars = ppc_eabi_comment_chars;
1046 as_bad (_("invalid switch -m%s"), arg);
1052 /* -V: SVR4 argument to print version ID. */
1054 print_version_id ();
1057 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1058 should be emitted or not. FIXME: Not implemented. */
1062 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1063 rather than .stabs.excl, which is ignored by the linker.
1064 FIXME: Not implemented. */
1080 md_show_usage (stream)
1083 fprintf (stream, _("\
1085 -a32 generate ELF32/XCOFF32\n\
1086 -a64 generate ELF64/XCOFF64\n\
1088 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1089 -mpwr generate code for POWER (RIOS1)\n\
1090 -m601 generate code for PowerPC 601\n\
1091 -mppc, -mppc32, -m603, -m604\n\
1092 generate code for PowerPC 603/604\n\
1093 -m403, -m405 generate code for PowerPC 403/405\n\
1094 -m440 generate code for PowerPC 440\n\
1095 -m7400, -m7410, -m7450, -m7455\n\
1096 generate code For PowerPC 7400/7410/7450/7455\n"));
1097 fprintf (stream, _("\
1098 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1099 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1100 -mbooke64 generate code for 64-bit PowerPC BookE\n\
1101 -mbooke, mbooke32 generate code for 32-bit PowerPC BookE\n\
1102 -mpower4 generate code for Power4 architecture\n\
1103 -mcom generate code Power/PowerPC common instructions\n\
1104 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1105 fprintf (stream, _("\
1106 -maltivec generate code for AltiVec\n\
1107 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1108 -mspe generate code for Motorola SPE instructions\n\
1109 -mregnames Allow symbolic names for registers\n\
1110 -mno-regnames Do not allow symbolic names for registers\n"));
1112 fprintf (stream, _("\
1113 -mrelocatable support for GCC's -mrelocatble option\n\
1114 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1115 -memb set PPC_EMB bit in ELF flags\n\
1116 -mlittle, -mlittle-endian, -l, -le\n\
1117 generate code for a little endian machine\n\
1118 -mbig, -mbig-endian, -b, -be\n\
1119 generate code for a big endian machine\n\
1120 -msolaris generate code for Solaris\n\
1121 -mno-solaris do not generate code for Solaris\n\
1122 -V print assembler version number\n\
1123 -Qy, -Qn ignored\n"));
1127 /* Set ppc_cpu if it is not already set. */
1132 const char *default_os = TARGET_OS;
1133 const char *default_cpu = TARGET_CPU;
1135 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1138 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1139 else if (strncmp (default_os, "aix", 3) == 0
1140 && default_os[3] >= '4' && default_os[3] <= '9')
1141 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1142 else if (strncmp (default_os, "aix3", 4) == 0)
1143 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1144 else if (strcmp (default_cpu, "rs6000") == 0)
1145 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1146 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1148 if (default_cpu[7] == '6' && default_cpu[8] == '4')
1149 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1151 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1154 as_fatal (_("Unknown default cpu = %s, os = %s"),
1155 default_cpu, default_os);
1159 /* Figure out the BFD architecture to use. */
1161 enum bfd_architecture
1164 const char *default_cpu = TARGET_CPU;
1167 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1168 return bfd_arch_powerpc;
1169 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1170 return bfd_arch_rs6000;
1171 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1173 if (strcmp (default_cpu, "rs6000") == 0)
1174 return bfd_arch_rs6000;
1175 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1176 return bfd_arch_powerpc;
1179 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1180 return bfd_arch_unknown;
1187 return bfd_mach_ppc64;
1188 else if (ppc_arch () == bfd_arch_rs6000)
1189 return bfd_mach_rs6k;
1191 return bfd_mach_ppc;
1195 ppc_target_format ()
1199 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1201 return "xcoff-powermac";
1204 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1206 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1211 return (target_big_endian
1212 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1213 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1217 /* Insert opcodes and macros into hash tables. Called at startup and
1221 ppc_setup_opcodes (void)
1223 register const struct powerpc_opcode *op;
1224 const struct powerpc_opcode *op_end;
1225 const struct powerpc_macro *macro;
1226 const struct powerpc_macro *macro_end;
1227 bfd_boolean dup_insn = FALSE;
1229 if (ppc_hash != NULL)
1230 hash_die (ppc_hash);
1231 if (ppc_macro_hash != NULL)
1232 hash_die (ppc_macro_hash);
1234 /* Insert the opcodes into a hash table. */
1235 ppc_hash = hash_new ();
1237 op_end = powerpc_opcodes + powerpc_num_opcodes;
1238 for (op = powerpc_opcodes; op < op_end; op++)
1240 know ((op->opcode & op->mask) == op->opcode);
1242 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1243 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1244 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1245 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1246 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1247 /* Certain instructions (eg: extsw) do not exist in the
1248 32-bit BookE instruction set, but they do exist in the
1249 64-bit BookE instruction set, and other PPC instruction
1250 sets. Check to see if the opcode has the BOOKE64 flag set.
1251 If it does make sure that the target CPU is not the BookE32. */
1252 && ((op->flags & PPC_OPCODE_BOOKE64) == 0
1253 || (ppc_cpu & PPC_OPCODE_BOOKE64) == PPC_OPCODE_BOOKE64
1254 || (ppc_cpu & PPC_OPCODE_BOOKE) == 0)
1255 && ((op->flags & (PPC_OPCODE_POWER4 | PPC_OPCODE_NOPOWER4)) == 0
1256 || ((op->flags & PPC_OPCODE_POWER4)
1257 == (ppc_cpu & PPC_OPCODE_POWER4))))
1261 retval = hash_insert (ppc_hash, op->name, (PTR) op);
1264 /* Ignore Power duplicates for -m601. */
1265 if ((ppc_cpu & PPC_OPCODE_601) != 0
1266 && (op->flags & PPC_OPCODE_POWER) != 0)
1269 as_bad (_("Internal assembler error for instruction %s"),
1276 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1277 for (op = powerpc_opcodes; op < op_end; op++)
1278 hash_insert (ppc_hash, op->name, (PTR) op);
1280 /* Insert the macros into a hash table. */
1281 ppc_macro_hash = hash_new ();
1283 macro_end = powerpc_macros + powerpc_num_macros;
1284 for (macro = powerpc_macros; macro < macro_end; macro++)
1286 if ((macro->flags & ppc_cpu) != 0)
1290 retval = hash_insert (ppc_macro_hash, macro->name, (PTR) macro);
1291 if (retval != (const char *) NULL)
1293 as_bad (_("Internal assembler error for macro %s"), macro->name);
1303 /* This function is called when the assembler starts up. It is called
1304 after the options have been parsed and the output file has been
1312 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1315 /* Set the ELF flags if desired. */
1316 if (ppc_flags && !msolaris)
1317 bfd_set_private_flags (stdoutput, ppc_flags);
1320 ppc_setup_opcodes ();
1322 /* Tell the main code what the endianness is if it is not overridden
1324 if (!set_target_endian)
1326 set_target_endian = 1;
1327 target_big_endian = PPC_BIG_ENDIAN;
1331 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1333 /* Create dummy symbols to serve as initial csects. This forces the
1334 text csects to precede the data csects. These symbols will not
1336 ppc_text_csects = symbol_make ("dummy\001");
1337 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1338 ppc_data_csects = symbol_make ("dummy\001");
1339 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1344 ppc_current_section = text_section;
1345 ppc_previous_section = 0;
1354 if (ppc_apuinfo_list == NULL)
1357 /* Ok, so write the section info out. We have this layout:
1361 0 8 length of "APUinfo\0"
1362 4 (n*4) number of APU's (4 bytes each)
1365 20 APU#1 first APU's info
1366 24 APU#2 second APU's info
1371 asection *seg = now_seg;
1372 subsegT subseg = now_subseg;
1373 asection *apuinfo_secp = (asection *) NULL;
1376 /* Create the .PPC.EMB.apuinfo section. */
1377 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1378 bfd_set_section_flags (stdoutput,
1380 SEC_HAS_CONTENTS | SEC_READONLY);
1383 md_number_to_chars (p, (valueT) 8, 4);
1386 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1389 md_number_to_chars (p, (valueT) 2, 4);
1392 strcpy (p, "APUinfo");
1394 for (i = 0; i < ppc_apuinfo_num; i++)
1397 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1400 frag_align (2, 0, 0);
1402 /* We probably can't restore the current segment, for there likely
1405 subseg_set (seg, subseg);
1410 /* Insert an operand value into an instruction. */
1412 static unsigned long
1413 ppc_insert_operand (insn, operand, val, file, line)
1415 const struct powerpc_operand *operand;
1420 if (operand->bits != 32)
1425 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1427 if ((operand->flags & PPC_OPERAND_SIGNOPT) != 0)
1428 max = (1 << operand->bits) - 1;
1430 max = (1 << (operand->bits - 1)) - 1;
1431 min = - (1 << (operand->bits - 1));
1435 /* Some people write 32 bit hex constants with the sign
1436 extension done by hand. This shouldn't really be
1437 valid, but, to permit this code to assemble on a 64
1438 bit host, we sign extend the 32 bit value. */
1440 && (val & (offsetT) 0x80000000) != 0
1441 && (val & (offsetT) 0xffffffff) == val)
1450 max = (1 << operand->bits) - 1;
1454 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1459 if (test < (offsetT) min || test > (offsetT) max)
1460 as_bad_value_out_of_range (_("operand"), test, (offsetT) min, (offsetT) max, file, line);
1463 if (operand->insert)
1468 insn = (*operand->insert) (insn, (long) val, ppc_cpu, &errmsg);
1469 if (errmsg != (const char *) NULL)
1470 as_bad_where (file, line, errmsg);
1473 insn |= (((long) val & ((1 << operand->bits) - 1))
1481 /* Parse @got, etc. and return the desired relocation. */
1482 static bfd_reloc_code_real_type
1483 ppc_elf_suffix (str_p, exp_p)
1489 unsigned int length : 8;
1490 unsigned int valid32 : 1;
1491 unsigned int valid64 : 1;
1500 const struct map_bfd *ptr;
1502 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1503 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1504 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1506 static const struct map_bfd mapping[] = {
1507 MAP ("l", BFD_RELOC_LO16),
1508 MAP ("h", BFD_RELOC_HI16),
1509 MAP ("ha", BFD_RELOC_HI16_S),
1510 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1511 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1512 MAP ("got", BFD_RELOC_16_GOTOFF),
1513 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1514 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1515 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1516 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1517 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1518 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1519 MAP ("copy", BFD_RELOC_PPC_COPY),
1520 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1521 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1522 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1523 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1524 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1525 MAP ("tls", BFD_RELOC_PPC_TLS),
1526 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1527 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1528 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1529 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1530 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1531 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1532 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1533 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1534 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1535 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1536 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1537 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1538 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1539 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1540 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1541 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1542 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1543 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1544 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1545 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1546 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1547 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1548 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1549 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1550 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1551 MAP32 ("fixup", BFD_RELOC_CTOR),
1552 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1553 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1554 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1555 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1556 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1557 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1558 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1559 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1560 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1561 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1562 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1563 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1564 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1565 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1566 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1567 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1568 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1569 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1570 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1571 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1572 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1573 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1574 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1575 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1576 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1577 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1578 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1579 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1580 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1581 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1582 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1583 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1584 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1585 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1586 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1587 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1588 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1589 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1590 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1591 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1592 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1596 return BFD_RELOC_UNUSED;
1598 for (ch = *str, str2 = ident;
1599 (str2 < ident + sizeof (ident) - 1
1600 && (ISALNUM (ch) || ch == '@'));
1603 *str2++ = TOLOWER (ch);
1610 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1611 if (ch == ptr->string[0]
1612 && len == ptr->length
1613 && memcmp (ident, ptr->string, ptr->length) == 0
1614 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1616 int reloc = ptr->reloc;
1619 if (exp_p->X_add_number != 0
1620 && (reloc == (int) BFD_RELOC_16_GOTOFF
1621 || reloc == (int) BFD_RELOC_LO16_GOTOFF
1622 || reloc == (int) BFD_RELOC_HI16_GOTOFF
1623 || reloc == (int) BFD_RELOC_HI16_S_GOTOFF))
1624 as_warn (_("identifier+constant@got means identifier@got+constant"));
1626 /* Now check for identifier@suffix+constant. */
1627 if (*str == '-' || *str == '+')
1629 char *orig_line = input_line_pointer;
1630 expressionS new_exp;
1632 input_line_pointer = str;
1633 expression (&new_exp);
1634 if (new_exp.X_op == O_constant)
1636 exp_p->X_add_number += new_exp.X_add_number;
1637 str = input_line_pointer;
1640 if (&input_line_pointer != str_p)
1641 input_line_pointer = orig_line;
1645 if (reloc == (int) BFD_RELOC_PPC64_TOC
1646 && exp_p->X_op == O_symbol
1647 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1649 /* Change the symbol so that the dummy .TOC. symbol can be
1650 omitted from the object file. */
1651 exp_p->X_add_symbol = &abs_symbol;
1654 return (bfd_reloc_code_real_type) reloc;
1657 return BFD_RELOC_UNUSED;
1660 /* Like normal .long/.short/.word, except support @got, etc.
1661 Clobbers input_line_pointer, checks end-of-line. */
1663 ppc_elf_cons (nbytes)
1664 register int nbytes; /* 1=.byte, 2=.word, 4=.long, 8=.llong. */
1667 bfd_reloc_code_real_type reloc;
1669 if (is_it_end_of_statement ())
1671 demand_empty_rest_of_line ();
1678 if (exp.X_op == O_symbol
1679 && *input_line_pointer == '@'
1680 && (reloc = ppc_elf_suffix (&input_line_pointer,
1681 &exp)) != BFD_RELOC_UNUSED)
1683 reloc_howto_type *reloc_howto;
1686 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1687 size = bfd_get_reloc_size (reloc_howto);
1691 as_bad (_("%s relocations do not fit in %d bytes\n"),
1692 reloc_howto->name, nbytes);
1699 p = frag_more (nbytes);
1701 if (target_big_endian)
1702 offset = nbytes - size;
1703 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1708 emit_expr (&exp, (unsigned int) nbytes);
1710 while (*input_line_pointer++ == ',');
1712 /* Put terminator back into stream. */
1713 input_line_pointer--;
1714 demand_empty_rest_of_line ();
1717 /* Solaris pseduo op to change to the .rodata section. */
1722 char *save_line = input_line_pointer;
1723 static char section[] = ".rodata\n";
1725 /* Just pretend this is .section .rodata */
1726 input_line_pointer = section;
1727 obj_elf_section (xxx);
1729 input_line_pointer = save_line;
1732 /* Pseudo op to make file scope bss items. */
1735 int xxx ATTRIBUTE_UNUSED;
1737 register char *name;
1741 register symbolS *symbolP;
1748 name = input_line_pointer;
1749 c = get_symbol_end ();
1751 /* just after name is now '\0'. */
1752 p = input_line_pointer;
1755 if (*input_line_pointer != ',')
1757 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1758 ignore_rest_of_line ();
1762 input_line_pointer++; /* skip ',' */
1763 if ((size = get_absolute_expression ()) < 0)
1765 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
1766 ignore_rest_of_line ();
1770 /* The third argument to .lcomm is the alignment. */
1771 if (*input_line_pointer != ',')
1775 ++input_line_pointer;
1776 align = get_absolute_expression ();
1779 as_warn (_("ignoring bad alignment"));
1785 symbolP = symbol_find_or_make (name);
1788 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
1790 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
1791 S_GET_NAME (symbolP));
1792 ignore_rest_of_line ();
1796 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
1798 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
1799 S_GET_NAME (symbolP),
1800 (long) S_GET_VALUE (symbolP),
1803 ignore_rest_of_line ();
1809 old_subsec = now_subseg;
1812 /* Convert to a power of 2 alignment. */
1813 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
1816 as_bad (_("Common alignment not a power of 2"));
1817 ignore_rest_of_line ();
1824 record_alignment (bss_section, align2);
1825 subseg_set (bss_section, 0);
1827 frag_align (align2, 0, 0);
1828 if (S_GET_SEGMENT (symbolP) == bss_section)
1829 symbol_get_frag (symbolP)->fr_symbol = 0;
1830 symbol_set_frag (symbolP, frag_now);
1831 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
1834 S_SET_SIZE (symbolP, size);
1835 S_SET_SEGMENT (symbolP, bss_section);
1836 subseg_set (old_sec, old_subsec);
1837 demand_empty_rest_of_line ();
1840 /* Validate any relocations emitted for -mrelocatable, possibly adding
1841 fixups for word relocations in writable segments, so we can adjust
1844 ppc_elf_validate_fix (fixp, seg)
1848 if (fixp->fx_done || fixp->fx_pcrel)
1857 case SHLIB_MRELOCATABLE:
1858 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
1859 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
1860 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
1861 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
1862 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
1863 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
1864 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
1865 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
1866 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
1867 && (seg->flags & SEC_LOAD) != 0
1868 && strcmp (segment_name (seg), ".got2") != 0
1869 && strcmp (segment_name (seg), ".dtors") != 0
1870 && strcmp (segment_name (seg), ".ctors") != 0
1871 && strcmp (segment_name (seg), ".fixup") != 0
1872 && strcmp (segment_name (seg), ".gcc_except_table") != 0
1873 && strcmp (segment_name (seg), ".eh_frame") != 0
1874 && strcmp (segment_name (seg), ".ex_shared") != 0)
1876 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
1877 || fixp->fx_r_type != BFD_RELOC_CTOR)
1879 as_bad_where (fixp->fx_file, fixp->fx_line,
1880 _("Relocation cannot be done when using -mrelocatable"));
1887 /* Prevent elf_frob_file_before_adjust removing a weak undefined
1888 function descriptor sym if the corresponding code sym is used. */
1891 ppc_frob_file_before_adjust ()
1898 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
1905 name = S_GET_NAME (symp);
1909 if (! S_IS_WEAK (symp)
1910 || S_IS_DEFINED (symp))
1913 len = strlen (name) + 1;
1914 dotname = xmalloc (len + 1);
1916 memcpy (dotname + 1, name, len);
1917 dotsym = symbol_find (dotname);
1919 if (dotsym != NULL && (symbol_used_p (dotsym)
1920 || symbol_used_in_reloc_p (dotsym)))
1922 symbol_mark_used (symp);
1926 /* Don't emit .TOC. symbol. */
1927 symp = symbol_find (".TOC.");
1929 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
1931 #endif /* OBJ_ELF */
1936 * Summary of parse_toc_entry.
1938 * in: Input_line_pointer points to the '[' in one of:
1940 * [toc] [tocv] [toc32] [toc64]
1942 * Anything else is an error of one kind or another.
1945 * return value: success or failure
1946 * toc_kind: kind of toc reference
1947 * input_line_pointer:
1948 * success: first char after the ']'
1949 * failure: unchanged
1953 * [toc] - rv == success, toc_kind = default_toc
1954 * [tocv] - rv == success, toc_kind = data_in_toc
1955 * [toc32] - rv == success, toc_kind = must_be_32
1956 * [toc64] - rv == success, toc_kind = must_be_64
1960 enum toc_size_qualifier
1962 default_toc, /* The toc cell constructed should be the system default size */
1963 data_in_toc, /* This is a direct reference to a toc cell */
1964 must_be_32, /* The toc cell constructed must be 32 bits wide */
1965 must_be_64 /* The toc cell constructed must be 64 bits wide */
1969 parse_toc_entry (toc_kind)
1970 enum toc_size_qualifier *toc_kind;
1975 enum toc_size_qualifier t;
1977 /* Save the input_line_pointer. */
1978 start = input_line_pointer;
1980 /* Skip over the '[' , and whitespace. */
1981 ++input_line_pointer;
1984 /* Find the spelling of the operand. */
1985 toc_spec = input_line_pointer;
1986 c = get_symbol_end ();
1988 if (strcmp (toc_spec, "toc") == 0)
1992 else if (strcmp (toc_spec, "tocv") == 0)
1996 else if (strcmp (toc_spec, "toc32") == 0)
2000 else if (strcmp (toc_spec, "toc64") == 0)
2006 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2007 *input_line_pointer = c;
2008 input_line_pointer = start;
2012 /* Now find the ']'. */
2013 *input_line_pointer = c;
2015 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2016 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2020 as_bad (_("syntax error: expected `]', found `%c'"), c);
2021 input_line_pointer = start;
2032 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2034 ppc_apuinfo_section_add (apu, version)
2035 unsigned int apu, version;
2039 /* Check we don't already exist. */
2040 for (i = 0; i < ppc_apuinfo_num; i++)
2041 if (ppc_apuinfo_list[i] == APUID (apu, version))
2044 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2046 if (ppc_apuinfo_num_alloc == 0)
2048 ppc_apuinfo_num_alloc = 4;
2049 ppc_apuinfo_list = (unsigned long *)
2050 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2054 ppc_apuinfo_num_alloc += 4;
2055 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2056 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2059 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2065 /* We need to keep a list of fixups. We can't simply generate them as
2066 we go, because that would require us to first create the frag, and
2067 that would screw up references to ``.''. */
2073 bfd_reloc_code_real_type reloc;
2076 #define MAX_INSN_FIXUPS (5)
2078 /* This routine is called for each instruction to be assembled. */
2085 const struct powerpc_opcode *opcode;
2087 const unsigned char *opindex_ptr;
2091 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2096 bfd_reloc_code_real_type reloc;
2099 /* Get the opcode. */
2100 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2105 /* Look up the opcode in the hash table. */
2106 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2107 if (opcode == (const struct powerpc_opcode *) NULL)
2109 const struct powerpc_macro *macro;
2111 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2112 if (macro == (const struct powerpc_macro *) NULL)
2113 as_bad (_("Unrecognized opcode: `%s'"), str);
2115 ppc_macro (s, macro);
2120 insn = opcode->opcode;
2123 while (ISSPACE (*str))
2126 /* PowerPC operands are just expressions. The only real issue is
2127 that a few operand types are optional. All cases which might use
2128 an optional operand separate the operands only with commas (in some
2129 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2130 have optional operands). Most instructions with optional operands
2131 have only one. Those that have more than one optional operand can
2132 take either all their operands or none. So, before we start seriously
2133 parsing the operands, we check to see if we have optional operands,
2134 and if we do, we count the number of commas to see which operands
2135 have been omitted. */
2137 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2139 const struct powerpc_operand *operand;
2141 operand = &powerpc_operands[*opindex_ptr];
2142 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2144 unsigned int opcount;
2145 unsigned int num_operands_expected;
2148 /* There is an optional operand. Count the number of
2149 commas in the input line. */
2156 while ((s = strchr (s, ',')) != (char *) NULL)
2163 /* Compute the number of expected operands.
2164 Do not count fake operands. */
2165 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2166 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2167 ++ num_operands_expected;
2169 /* If there are fewer operands in the line then are called
2170 for by the instruction, we want to skip the optional
2172 if (opcount < num_operands_expected)
2179 /* Gather the operands. */
2183 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2185 const struct powerpc_operand *operand;
2191 if (next_opindex == 0)
2192 operand = &powerpc_operands[*opindex_ptr];
2195 operand = &powerpc_operands[next_opindex];
2200 /* If this is a fake operand, then we do not expect anything
2202 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2204 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2205 if (errmsg != (const char *) NULL)
2210 /* If this is an optional operand, and we are skipping it, just
2212 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2215 if (operand->insert)
2217 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2218 if (errmsg != (const char *) NULL)
2221 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2222 next_opindex = *opindex_ptr + 1;
2226 /* Gather the operand. */
2227 hold = input_line_pointer;
2228 input_line_pointer = str;
2231 if (*input_line_pointer == '[')
2233 /* We are expecting something like the second argument here:
2235 * lwz r4,[toc].GS.0.static_int(rtoc)
2236 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2237 * The argument following the `]' must be a symbol name, and the
2238 * register must be the toc register: 'rtoc' or '2'
2240 * The effect is to 0 as the displacement field
2241 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2242 * the appropriate variation) reloc against it based on the symbol.
2243 * The linker will build the toc, and insert the resolved toc offset.
2246 * o The size of the toc entry is currently assumed to be
2247 * 32 bits. This should not be assumed to be a hard coded
2249 * o In an effort to cope with a change from 32 to 64 bits,
2250 * there are also toc entries that are specified to be
2251 * either 32 or 64 bits:
2252 * lwz r4,[toc32].GS.0.static_int(rtoc)
2253 * lwz r4,[toc64].GS.0.static_int(rtoc)
2254 * These demand toc entries of the specified size, and the
2255 * instruction probably requires it.
2259 enum toc_size_qualifier toc_kind;
2260 bfd_reloc_code_real_type toc_reloc;
2262 /* Go parse off the [tocXX] part. */
2263 valid_toc = parse_toc_entry (&toc_kind);
2267 /* Note: message has already been issued.
2268 FIXME: what sort of recovery should we do?
2269 demand_rest_of_line (); return; ? */
2272 /* Now get the symbol following the ']'. */
2278 /* In this case, we may not have seen the symbol yet,
2279 since it is allowed to appear on a .extern or .globl
2280 or just be a label in the .data section. */
2281 toc_reloc = BFD_RELOC_PPC_TOC16;
2284 /* 1. The symbol must be defined and either in the toc
2285 section, or a global.
2286 2. The reloc generated must have the TOCDEFN flag set
2287 in upper bit mess of the reloc type.
2288 FIXME: It's a little confusing what the tocv
2289 qualifier can be used for. At the very least, I've
2290 seen three uses, only one of which I'm sure I can
2292 if (ex.X_op == O_symbol)
2294 assert (ex.X_add_symbol != NULL);
2295 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2298 as_bad (_("[tocv] symbol is not a toc symbol"));
2302 toc_reloc = BFD_RELOC_PPC_TOC16;
2305 /* FIXME: these next two specifically specify 32/64 bit
2306 toc entries. We don't support them today. Is this
2307 the right way to say that? */
2308 toc_reloc = BFD_RELOC_UNUSED;
2309 as_bad (_("Unimplemented toc32 expression modifier"));
2312 /* FIXME: see above. */
2313 toc_reloc = BFD_RELOC_UNUSED;
2314 as_bad (_("Unimplemented toc64 expression modifier"));
2318 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2324 /* We need to generate a fixup for this expression. */
2325 if (fc >= MAX_INSN_FIXUPS)
2326 as_fatal (_("too many fixups"));
2328 fixups[fc].reloc = toc_reloc;
2329 fixups[fc].exp = ex;
2330 fixups[fc].opindex = *opindex_ptr;
2333 /* Ok. We've set up the fixup for the instruction. Now make it
2334 look like the constant 0 was found here. */
2336 ex.X_op = O_constant;
2337 ex.X_add_number = 0;
2338 ex.X_add_symbol = NULL;
2339 ex.X_op_symbol = NULL;
2345 if (! register_name (&ex))
2347 if ((operand->flags & PPC_OPERAND_CR) != 0)
2354 str = input_line_pointer;
2355 input_line_pointer = hold;
2357 if (ex.X_op == O_illegal)
2358 as_bad (_("illegal operand"));
2359 else if (ex.X_op == O_absent)
2360 as_bad (_("missing operand"));
2361 else if (ex.X_op == O_register)
2363 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2366 else if (ex.X_op == O_constant)
2369 /* Allow @HA, @L, @H on constants. */
2370 char *orig_str = str;
2372 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2379 case BFD_RELOC_LO16:
2380 /* X_unsigned is the default, so if the user has done
2381 something which cleared it, we always produce a
2383 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2384 ex.X_add_number &= 0xffff;
2386 ex.X_add_number = SEX16 (ex.X_add_number);
2389 case BFD_RELOC_HI16:
2390 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2391 ex.X_add_number = PPC_HI (ex.X_add_number);
2393 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2396 case BFD_RELOC_HI16_S:
2397 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2398 ex.X_add_number = PPC_HA (ex.X_add_number);
2400 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2403 case BFD_RELOC_PPC64_HIGHER:
2404 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2405 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2407 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2410 case BFD_RELOC_PPC64_HIGHER_S:
2411 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2412 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2414 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2417 case BFD_RELOC_PPC64_HIGHEST:
2418 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2419 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2421 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2424 case BFD_RELOC_PPC64_HIGHEST_S:
2425 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2426 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2428 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2431 #endif /* OBJ_ELF */
2432 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2436 else if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2438 /* Some TLS tweaks. */
2443 case BFD_RELOC_PPC_TLS:
2444 insn = ppc_insert_operand (insn, operand, ppc_obj64 ? 13 : 2,
2447 /* We'll only use the 32 (or 64) bit form of these relocations
2448 in constants. Instructions get the 16 bit form. */
2449 case BFD_RELOC_PPC_DTPREL:
2450 reloc = BFD_RELOC_PPC_DTPREL16;
2452 case BFD_RELOC_PPC_TPREL:
2453 reloc = BFD_RELOC_PPC_TPREL16;
2457 /* For the absolute forms of branches, convert the PC
2458 relative form back into the absolute. */
2459 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2463 case BFD_RELOC_PPC_B26:
2464 reloc = BFD_RELOC_PPC_BA26;
2466 case BFD_RELOC_PPC_B16:
2467 reloc = BFD_RELOC_PPC_BA16;
2469 case BFD_RELOC_PPC_B16_BRTAKEN:
2470 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2472 case BFD_RELOC_PPC_B16_BRNTAKEN:
2473 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2481 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2486 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2488 case BFD_RELOC_LO16:
2489 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2491 case BFD_RELOC_16_GOTOFF:
2492 reloc = BFD_RELOC_PPC64_GOT16_DS;
2494 case BFD_RELOC_LO16_GOTOFF:
2495 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2497 case BFD_RELOC_LO16_PLTOFF:
2498 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2500 case BFD_RELOC_16_BASEREL:
2501 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2503 case BFD_RELOC_LO16_BASEREL:
2504 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2506 case BFD_RELOC_PPC_TOC16:
2507 reloc = BFD_RELOC_PPC64_TOC16_DS;
2509 case BFD_RELOC_PPC64_TOC16_LO:
2510 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2512 case BFD_RELOC_PPC64_PLTGOT16:
2513 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2515 case BFD_RELOC_PPC64_PLTGOT16_LO:
2516 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2518 case BFD_RELOC_PPC_DTPREL16:
2519 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2521 case BFD_RELOC_PPC_DTPREL16_LO:
2522 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2524 case BFD_RELOC_PPC_TPREL16:
2525 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2527 case BFD_RELOC_PPC_TPREL16_LO:
2528 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2530 case BFD_RELOC_PPC_GOT_DTPREL16:
2531 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2532 case BFD_RELOC_PPC_GOT_TPREL16:
2533 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2536 as_bad (_("unsupported relocation for DS offset field"));
2541 /* We need to generate a fixup for this expression. */
2542 if (fc >= MAX_INSN_FIXUPS)
2543 as_fatal (_("too many fixups"));
2544 fixups[fc].exp = ex;
2545 fixups[fc].opindex = 0;
2546 fixups[fc].reloc = reloc;
2549 #endif /* OBJ_ELF */
2553 /* We need to generate a fixup for this expression. */
2554 if (fc >= MAX_INSN_FIXUPS)
2555 as_fatal (_("too many fixups"));
2556 fixups[fc].exp = ex;
2557 fixups[fc].opindex = *opindex_ptr;
2558 fixups[fc].reloc = BFD_RELOC_UNUSED;
2567 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2575 /* The call to expression should have advanced str past any
2578 && (endc != ',' || *str != '\0'))
2580 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2588 while (ISSPACE (*str))
2592 as_bad (_("junk at end of line: `%s'"), str);
2595 /* Do we need/want a APUinfo section? */
2596 if (ppc_cpu & (PPC_OPCODE_SPE
2597 | PPC_OPCODE_ISEL | PPC_OPCODE_EFS
2598 | PPC_OPCODE_BRLOCK | PPC_OPCODE_PMR | PPC_OPCODE_CACHELCK
2599 | PPC_OPCODE_RFMCI))
2601 /* These are all version "1". */
2602 if (opcode->flags & PPC_OPCODE_SPE)
2603 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2604 if (opcode->flags & PPC_OPCODE_ISEL)
2605 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2606 if (opcode->flags & PPC_OPCODE_EFS)
2607 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2608 if (opcode->flags & PPC_OPCODE_BRLOCK)
2609 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2610 if (opcode->flags & PPC_OPCODE_PMR)
2611 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2612 if (opcode->flags & PPC_OPCODE_CACHELCK)
2613 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2614 if (opcode->flags & PPC_OPCODE_RFMCI)
2615 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2619 /* Write out the instruction. */
2621 md_number_to_chars (f, insn, 4);
2624 dwarf2_emit_insn (4);
2627 /* Create any fixups. At this point we do not use a
2628 bfd_reloc_code_real_type, but instead just use the
2629 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2630 handle fixups for any operand type, although that is admittedly
2631 not a very exciting feature. We pick a BFD reloc type in
2633 for (i = 0; i < fc; i++)
2635 const struct powerpc_operand *operand;
2637 operand = &powerpc_operands[fixups[i].opindex];
2638 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2640 reloc_howto_type *reloc_howto;
2645 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2649 size = bfd_get_reloc_size (reloc_howto);
2650 offset = target_big_endian ? (4 - size) : 0;
2652 if (size < 1 || size > 4)
2655 fixP = fix_new_exp (frag_now,
2656 f - frag_now->fr_literal + offset,
2659 reloc_howto->pc_relative,
2662 /* Turn off complaints that the addend is too large for things like
2664 switch (fixups[i].reloc)
2666 case BFD_RELOC_16_GOTOFF:
2667 case BFD_RELOC_PPC_TOC16:
2668 case BFD_RELOC_LO16:
2669 case BFD_RELOC_HI16:
2670 case BFD_RELOC_HI16_S:
2672 case BFD_RELOC_PPC64_HIGHER:
2673 case BFD_RELOC_PPC64_HIGHER_S:
2674 case BFD_RELOC_PPC64_HIGHEST:
2675 case BFD_RELOC_PPC64_HIGHEST_S:
2677 fixP->fx_no_overflow = 1;
2684 fix_new_exp (frag_now,
2685 f - frag_now->fr_literal,
2688 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2689 ((bfd_reloc_code_real_type)
2690 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
2694 /* Handle a macro. Gather all the operands, transform them as
2695 described by the macro, and call md_assemble recursively. All the
2696 operands are separated by commas; we don't accept parentheses
2697 around operands here. */
2700 ppc_macro (str, macro)
2702 const struct powerpc_macro *macro;
2713 /* Gather the users operands into the operands array. */
2718 if (count >= sizeof operands / sizeof operands[0])
2720 operands[count++] = s;
2721 s = strchr (s, ',');
2722 if (s == (char *) NULL)
2727 if (count != macro->operands)
2729 as_bad (_("wrong number of operands"));
2733 /* Work out how large the string must be (the size is unbounded
2734 because it includes user input). */
2736 format = macro->format;
2737 while (*format != '\0')
2746 arg = strtol (format + 1, &send, 10);
2747 know (send != format && arg >= 0 && arg < count);
2748 len += strlen (operands[arg]);
2753 /* Put the string together. */
2754 complete = s = (char *) alloca (len + 1);
2755 format = macro->format;
2756 while (*format != '\0')
2762 arg = strtol (format + 1, &send, 10);
2763 strcpy (s, operands[arg]);
2770 /* Assemble the constructed instruction. */
2771 md_assemble (complete);
2775 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
2778 ppc_section_letter (letter, ptr_msg)
2785 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
2790 ppc_section_word (str, len)
2794 if (len == 7 && strncmp (str, "exclude", 7) == 0)
2801 ppc_section_type (str, len)
2805 if (len == 7 && strncmp (str, "ordered", 7) == 0)
2812 ppc_section_flags (flags, attr, type)
2817 if (type == SHT_ORDERED)
2818 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
2820 if (attr & SHF_EXCLUDE)
2821 flags |= SEC_EXCLUDE;
2825 #endif /* OBJ_ELF */
2828 /* Pseudo-op handling. */
2830 /* The .byte pseudo-op. This is similar to the normal .byte
2831 pseudo-op, but it can also take a single ASCII string. */
2835 int ignore ATTRIBUTE_UNUSED;
2837 if (*input_line_pointer != '\"')
2843 /* Gather characters. A real double quote is doubled. Unusual
2844 characters are not permitted. */
2845 ++input_line_pointer;
2850 c = *input_line_pointer++;
2854 if (*input_line_pointer != '\"')
2856 ++input_line_pointer;
2859 FRAG_APPEND_1_CHAR (c);
2862 demand_empty_rest_of_line ();
2867 /* XCOFF specific pseudo-op handling. */
2869 /* This is set if we are creating a .stabx symbol, since we don't want
2870 to handle symbol suffixes for such symbols. */
2871 static bfd_boolean ppc_stab_symbol;
2873 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
2874 symbols in the .bss segment as though they were local common
2875 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
2876 aligns .comm and .lcomm to 4 bytes. */
2882 asection *current_seg = now_seg;
2883 subsegT current_subseg = now_subseg;
2889 symbolS *lcomm_sym = NULL;
2893 name = input_line_pointer;
2894 endc = get_symbol_end ();
2895 end_name = input_line_pointer;
2898 if (*input_line_pointer != ',')
2900 as_bad (_("missing size"));
2901 ignore_rest_of_line ();
2904 ++input_line_pointer;
2906 size = get_absolute_expression ();
2909 as_bad (_("negative size"));
2910 ignore_rest_of_line ();
2916 /* The third argument to .comm is the alignment. */
2917 if (*input_line_pointer != ',')
2921 ++input_line_pointer;
2922 align = get_absolute_expression ();
2925 as_warn (_("ignoring bad alignment"));
2940 /* The third argument to .lcomm appears to be the real local
2941 common symbol to create. References to the symbol named in
2942 the first argument are turned into references to the third
2944 if (*input_line_pointer != ',')
2946 as_bad (_("missing real symbol name"));
2947 ignore_rest_of_line ();
2950 ++input_line_pointer;
2952 lcomm_name = input_line_pointer;
2953 lcomm_endc = get_symbol_end ();
2955 lcomm_sym = symbol_find_or_make (lcomm_name);
2957 *input_line_pointer = lcomm_endc;
2961 sym = symbol_find_or_make (name);
2964 if (S_IS_DEFINED (sym)
2965 || S_GET_VALUE (sym) != 0)
2967 as_bad (_("attempt to redefine symbol"));
2968 ignore_rest_of_line ();
2972 record_alignment (bss_section, align);
2975 || ! S_IS_DEFINED (lcomm_sym))
2984 S_SET_EXTERNAL (sym);
2988 symbol_get_tc (lcomm_sym)->output = 1;
2989 def_sym = lcomm_sym;
2993 subseg_set (bss_section, 1);
2994 frag_align (align, 0, 0);
2996 symbol_set_frag (def_sym, frag_now);
2997 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
2998 def_size, (char *) NULL);
3000 S_SET_SEGMENT (def_sym, bss_section);
3001 symbol_get_tc (def_sym)->align = align;
3005 /* Align the size of lcomm_sym. */
3006 symbol_get_frag (lcomm_sym)->fr_offset =
3007 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3008 &~ ((1 << align) - 1));
3009 if (align > symbol_get_tc (lcomm_sym)->align)
3010 symbol_get_tc (lcomm_sym)->align = align;
3015 /* Make sym an offset from lcomm_sym. */
3016 S_SET_SEGMENT (sym, bss_section);
3017 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3018 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3019 symbol_get_frag (lcomm_sym)->fr_offset += size;
3022 subseg_set (current_seg, current_subseg);
3024 demand_empty_rest_of_line ();
3027 /* The .csect pseudo-op. This switches us into a different
3028 subsegment. The first argument is a symbol whose value is the
3029 start of the .csect. In COFF, csect symbols get special aux
3030 entries defined by the x_csect field of union internal_auxent. The
3031 optional second argument is the alignment (the default is 2). */
3035 int ignore ATTRIBUTE_UNUSED;
3042 name = input_line_pointer;
3043 endc = get_symbol_end ();
3045 sym = symbol_find_or_make (name);
3047 *input_line_pointer = endc;
3049 if (S_GET_NAME (sym)[0] == '\0')
3051 /* An unnamed csect is assumed to be [PR]. */
3052 symbol_get_tc (sym)->class = XMC_PR;
3056 if (*input_line_pointer == ',')
3058 ++input_line_pointer;
3059 align = get_absolute_expression ();
3062 ppc_change_csect (sym, align);
3064 demand_empty_rest_of_line ();
3067 /* Change to a different csect. */
3070 ppc_change_csect (sym, align)
3074 if (S_IS_DEFINED (sym))
3075 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3085 /* This is a new csect. We need to look at the symbol class to
3086 figure out whether it should go in the text section or the
3090 switch (symbol_get_tc (sym)->class)
3100 S_SET_SEGMENT (sym, text_section);
3101 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3102 ++ppc_text_subsegment;
3103 list_ptr = &ppc_text_csects;
3113 if (ppc_toc_csect != NULL
3114 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3115 == ppc_data_subsegment))
3117 S_SET_SEGMENT (sym, data_section);
3118 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3119 ++ppc_data_subsegment;
3120 list_ptr = &ppc_data_csects;
3126 /* We set the obstack chunk size to a small value before
3127 changing subsegments, so that we don't use a lot of memory
3128 space for what may be a small section. */
3129 hold_chunksize = chunksize;
3132 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3133 symbol_get_tc (sym)->subseg);
3135 chunksize = hold_chunksize;
3138 ppc_after_toc_frag = frag_now;
3140 record_alignment (sec, align);
3142 frag_align_code (align, 0);
3144 frag_align (align, 0, 0);
3146 symbol_set_frag (sym, frag_now);
3147 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3149 symbol_get_tc (sym)->align = align;
3150 symbol_get_tc (sym)->output = 1;
3151 symbol_get_tc (sym)->within = sym;
3153 for (list = *list_ptr;
3154 symbol_get_tc (list)->next != (symbolS *) NULL;
3155 list = symbol_get_tc (list)->next)
3157 symbol_get_tc (list)->next = sym;
3159 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3160 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3164 ppc_current_csect = sym;
3167 /* This function handles the .text and .data pseudo-ops. These
3168 pseudo-ops aren't really used by XCOFF; we implement them for the
3169 convenience of people who aren't used to XCOFF. */
3180 else if (type == 'd')
3185 sym = symbol_find_or_make (name);
3187 ppc_change_csect (sym, 2);
3189 demand_empty_rest_of_line ();
3192 /* This function handles the .section pseudo-op. This is mostly to
3193 give an error, since XCOFF only supports .text, .data and .bss, but
3194 we do permit the user to name the text or data section. */
3197 ppc_named_section (ignore)
3198 int ignore ATTRIBUTE_UNUSED;
3201 const char *real_name;
3205 user_name = input_line_pointer;
3206 c = get_symbol_end ();
3208 if (strcmp (user_name, ".text") == 0)
3209 real_name = ".text[PR]";
3210 else if (strcmp (user_name, ".data") == 0)
3211 real_name = ".data[RW]";
3214 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3215 *input_line_pointer = c;
3216 ignore_rest_of_line ();
3220 *input_line_pointer = c;
3222 sym = symbol_find_or_make (real_name);
3224 ppc_change_csect (sym, 2);
3226 demand_empty_rest_of_line ();
3229 /* The .extern pseudo-op. We create an undefined symbol. */
3233 int ignore ATTRIBUTE_UNUSED;
3238 name = input_line_pointer;
3239 endc = get_symbol_end ();
3241 (void) symbol_find_or_make (name);
3243 *input_line_pointer = endc;
3245 demand_empty_rest_of_line ();
3248 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3252 int ignore ATTRIBUTE_UNUSED;
3258 name = input_line_pointer;
3259 endc = get_symbol_end ();
3261 sym = symbol_find_or_make (name);
3263 *input_line_pointer = endc;
3265 symbol_get_tc (sym)->output = 1;
3267 demand_empty_rest_of_line ();
3270 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3271 although I don't know why it bothers. */
3275 int ignore ATTRIBUTE_UNUSED;
3282 name = input_line_pointer;
3283 endc = get_symbol_end ();
3285 sym = symbol_find_or_make (name);
3287 *input_line_pointer = endc;
3289 if (*input_line_pointer != ',')
3291 as_bad (_("missing rename string"));
3292 ignore_rest_of_line ();
3295 ++input_line_pointer;
3297 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3299 demand_empty_rest_of_line ();
3302 /* The .stabx pseudo-op. This is similar to a normal .stabs
3303 pseudo-op, but slightly different. A sample is
3304 .stabx "main:F-1",.main,142,0
3305 The first argument is the symbol name to create. The second is the
3306 value, and the third is the storage class. The fourth seems to be
3307 always zero, and I am assuming it is the type. */
3311 int ignore ATTRIBUTE_UNUSED;
3318 name = demand_copy_C_string (&len);
3320 if (*input_line_pointer != ',')
3322 as_bad (_("missing value"));
3325 ++input_line_pointer;
3327 ppc_stab_symbol = TRUE;
3328 sym = symbol_make (name);
3329 ppc_stab_symbol = FALSE;
3331 symbol_get_tc (sym)->real_name = name;
3333 (void) expression (&exp);
3340 as_bad (_("illegal .stabx expression; zero assumed"));
3341 exp.X_add_number = 0;
3344 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3345 symbol_set_frag (sym, &zero_address_frag);
3349 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3350 symbol_set_value_expression (sym, &exp);
3354 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3355 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3360 /* The value is some complex expression. This will probably
3361 fail at some later point, but this is probably the right
3362 thing to do here. */
3363 symbol_set_value_expression (sym, &exp);
3367 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3368 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3370 if (*input_line_pointer != ',')
3372 as_bad (_("missing class"));
3375 ++input_line_pointer;
3377 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3379 if (*input_line_pointer != ',')
3381 as_bad (_("missing type"));
3384 ++input_line_pointer;
3386 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3388 symbol_get_tc (sym)->output = 1;
3390 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3392 symbol_get_tc (sym)->within = ppc_current_block;
3397 .stabx "z",arrays_,133,0
3400 .comm arrays_,13768,3
3402 resolve_symbol_value will copy the exp's "within" into sym's when the
3403 offset is 0. Since this seems to be corner case problem,
3404 only do the correction for storage class C_STSYM. A better solution
3405 would be to have the tc field updated in ppc_symbol_new_hook. */
3407 if (exp.X_op == O_symbol)
3409 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3413 if (exp.X_op != O_symbol
3414 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3415 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3416 ppc_frob_label (sym);
3419 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3420 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3421 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3422 symbol_get_tc (ppc_current_csect)->within = sym;
3425 demand_empty_rest_of_line ();
3428 /* The .function pseudo-op. This takes several arguments. The first
3429 argument seems to be the external name of the symbol. The second
3430 argument seems to be the label for the start of the function. gcc
3431 uses the same name for both. I have no idea what the third and
3432 fourth arguments are meant to be. The optional fifth argument is
3433 an expression for the size of the function. In COFF this symbol
3434 gets an aux entry like that used for a csect. */
3437 ppc_function (ignore)
3438 int ignore ATTRIBUTE_UNUSED;
3446 name = input_line_pointer;
3447 endc = get_symbol_end ();
3449 /* Ignore any [PR] suffix. */
3450 name = ppc_canonicalize_symbol_name (name);
3451 s = strchr (name, '[');
3452 if (s != (char *) NULL
3453 && strcmp (s + 1, "PR]") == 0)
3456 ext_sym = symbol_find_or_make (name);
3458 *input_line_pointer = endc;
3460 if (*input_line_pointer != ',')
3462 as_bad (_("missing symbol name"));
3463 ignore_rest_of_line ();
3466 ++input_line_pointer;
3468 name = input_line_pointer;
3469 endc = get_symbol_end ();
3471 lab_sym = symbol_find_or_make (name);
3473 *input_line_pointer = endc;
3475 if (ext_sym != lab_sym)
3479 exp.X_op = O_symbol;
3480 exp.X_add_symbol = lab_sym;
3481 exp.X_op_symbol = NULL;
3482 exp.X_add_number = 0;
3484 symbol_set_value_expression (ext_sym, &exp);
3487 if (symbol_get_tc (ext_sym)->class == -1)
3488 symbol_get_tc (ext_sym)->class = XMC_PR;
3489 symbol_get_tc (ext_sym)->output = 1;
3491 if (*input_line_pointer == ',')
3495 /* Ignore the third argument. */
3496 ++input_line_pointer;
3497 expression (&ignore);
3498 if (*input_line_pointer == ',')
3500 /* Ignore the fourth argument. */
3501 ++input_line_pointer;
3502 expression (&ignore);
3503 if (*input_line_pointer == ',')
3505 /* The fifth argument is the function size. */
3506 ++input_line_pointer;
3507 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3510 &zero_address_frag);
3511 pseudo_set (symbol_get_tc (ext_sym)->size);
3516 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3517 SF_SET_FUNCTION (ext_sym);
3518 SF_SET_PROCESS (ext_sym);
3519 coff_add_linesym (ext_sym);
3521 demand_empty_rest_of_line ();
3524 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3525 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3526 with the correct line number */
3528 static symbolS *saved_bi_sym = 0;
3532 int ignore ATTRIBUTE_UNUSED;
3536 sym = symbol_make (".bf");
3537 S_SET_SEGMENT (sym, text_section);
3538 symbol_set_frag (sym, frag_now);
3539 S_SET_VALUE (sym, frag_now_fix ());
3540 S_SET_STORAGE_CLASS (sym, C_FCN);
3542 coff_line_base = get_absolute_expression ();
3544 S_SET_NUMBER_AUXILIARY (sym, 1);
3545 SA_SET_SYM_LNNO (sym, coff_line_base);
3547 /* Line number for bi. */
3550 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3555 symbol_get_tc (sym)->output = 1;
3557 ppc_frob_label (sym);
3559 demand_empty_rest_of_line ();
3562 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3563 ".ef", except that the line number is absolute, not relative to the
3564 most recent ".bf" symbol. */
3568 int ignore ATTRIBUTE_UNUSED;
3572 sym = symbol_make (".ef");
3573 S_SET_SEGMENT (sym, text_section);
3574 symbol_set_frag (sym, frag_now);
3575 S_SET_VALUE (sym, frag_now_fix ());
3576 S_SET_STORAGE_CLASS (sym, C_FCN);
3577 S_SET_NUMBER_AUXILIARY (sym, 1);
3578 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3579 symbol_get_tc (sym)->output = 1;
3581 ppc_frob_label (sym);
3583 demand_empty_rest_of_line ();
3586 /* The .bi and .ei pseudo-ops. These take a string argument and
3587 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3588 the symbol list. The value of .bi will be know when the next .bf
3595 static symbolS *last_biei;
3602 name = demand_copy_C_string (&len);
3604 /* The value of these symbols is actually file offset. Here we set
3605 the value to the index into the line number entries. In
3606 ppc_frob_symbols we set the fix_line field, which will cause BFD
3607 to do the right thing. */
3609 sym = symbol_make (name);
3610 /* obj-coff.c currently only handles line numbers correctly in the
3612 S_SET_SEGMENT (sym, text_section);
3613 S_SET_VALUE (sym, coff_n_line_nos);
3614 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3616 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3617 symbol_get_tc (sym)->output = 1;
3625 for (look = last_biei ? last_biei : symbol_rootP;
3626 (look != (symbolS *) NULL
3627 && (S_GET_STORAGE_CLASS (look) == C_FILE
3628 || S_GET_STORAGE_CLASS (look) == C_BINCL
3629 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3630 look = symbol_next (look))
3632 if (look != (symbolS *) NULL)
3634 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3635 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3639 demand_empty_rest_of_line ();
3642 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3643 There is one argument, which is a csect symbol. The value of the
3644 .bs symbol is the index of this csect symbol. */
3648 int ignore ATTRIBUTE_UNUSED;
3655 if (ppc_current_block != NULL)
3656 as_bad (_("nested .bs blocks"));
3658 name = input_line_pointer;
3659 endc = get_symbol_end ();
3661 csect = symbol_find_or_make (name);
3663 *input_line_pointer = endc;
3665 sym = symbol_make (".bs");
3666 S_SET_SEGMENT (sym, now_seg);
3667 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3668 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3669 symbol_get_tc (sym)->output = 1;
3671 symbol_get_tc (sym)->within = csect;
3673 ppc_frob_label (sym);
3675 ppc_current_block = sym;
3677 demand_empty_rest_of_line ();
3680 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3684 int ignore ATTRIBUTE_UNUSED;
3688 if (ppc_current_block == NULL)
3689 as_bad (_(".es without preceding .bs"));
3691 sym = symbol_make (".es");
3692 S_SET_SEGMENT (sym, now_seg);
3693 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3694 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3695 symbol_get_tc (sym)->output = 1;
3697 ppc_frob_label (sym);
3699 ppc_current_block = NULL;
3701 demand_empty_rest_of_line ();
3704 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3709 int ignore ATTRIBUTE_UNUSED;
3713 sym = symbol_make (".bb");
3714 S_SET_SEGMENT (sym, text_section);
3715 symbol_set_frag (sym, frag_now);
3716 S_SET_VALUE (sym, frag_now_fix ());
3717 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3719 S_SET_NUMBER_AUXILIARY (sym, 1);
3720 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3722 symbol_get_tc (sym)->output = 1;
3724 SF_SET_PROCESS (sym);
3726 ppc_frob_label (sym);
3728 demand_empty_rest_of_line ();
3731 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
3736 int ignore ATTRIBUTE_UNUSED;
3740 sym = symbol_make (".eb");
3741 S_SET_SEGMENT (sym, text_section);
3742 symbol_set_frag (sym, frag_now);
3743 S_SET_VALUE (sym, frag_now_fix ());
3744 S_SET_STORAGE_CLASS (sym, C_BLOCK);
3745 S_SET_NUMBER_AUXILIARY (sym, 1);
3746 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 .bc pseudo-op. This just creates a C_BCOMM symbol with a
3761 int ignore ATTRIBUTE_UNUSED;
3767 name = demand_copy_C_string (&len);
3768 sym = symbol_make (name);
3769 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3770 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3771 S_SET_STORAGE_CLASS (sym, C_BCOMM);
3772 S_SET_VALUE (sym, 0);
3773 symbol_get_tc (sym)->output = 1;
3775 ppc_frob_label (sym);
3777 demand_empty_rest_of_line ();
3780 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
3784 int ignore ATTRIBUTE_UNUSED;
3788 sym = symbol_make (".ec");
3789 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3790 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3791 S_SET_STORAGE_CLASS (sym, C_ECOMM);
3792 S_SET_VALUE (sym, 0);
3793 symbol_get_tc (sym)->output = 1;
3795 ppc_frob_label (sym);
3797 demand_empty_rest_of_line ();
3800 /* The .toc pseudo-op. Switch to the .toc subsegment. */
3804 int ignore ATTRIBUTE_UNUSED;
3806 if (ppc_toc_csect != (symbolS *) NULL)
3807 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
3814 subseg = ppc_data_subsegment;
3815 ++ppc_data_subsegment;
3817 subseg_new (segment_name (data_section), subseg);
3818 ppc_toc_frag = frag_now;
3820 sym = symbol_find_or_make ("TOC[TC0]");
3821 symbol_set_frag (sym, frag_now);
3822 S_SET_SEGMENT (sym, data_section);
3823 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3824 symbol_get_tc (sym)->subseg = subseg;
3825 symbol_get_tc (sym)->output = 1;
3826 symbol_get_tc (sym)->within = sym;
3828 ppc_toc_csect = sym;
3830 for (list = ppc_data_csects;
3831 symbol_get_tc (list)->next != (symbolS *) NULL;
3832 list = symbol_get_tc (list)->next)
3834 symbol_get_tc (list)->next = sym;
3836 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3837 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3841 ppc_current_csect = ppc_toc_csect;
3843 demand_empty_rest_of_line ();
3846 /* The AIX assembler automatically aligns the operands of a .long or
3847 .short pseudo-op, and we want to be compatible. */
3850 ppc_xcoff_cons (log_size)
3853 frag_align (log_size, 0, 0);
3854 record_alignment (now_seg, log_size);
3855 cons (1 << log_size);
3860 int dummy ATTRIBUTE_UNUSED;
3865 (void) expression (&exp);
3867 if (exp.X_op != O_constant)
3869 as_bad (_("non-constant byte count"));
3873 byte_count = exp.X_add_number;
3875 if (*input_line_pointer != ',')
3877 as_bad (_("missing value"));
3881 ++input_line_pointer;
3885 #endif /* OBJ_XCOFF */
3886 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
3888 /* The .tc pseudo-op. This is used when generating either XCOFF or
3889 ELF. This takes two or more arguments.
3891 When generating XCOFF output, the first argument is the name to
3892 give to this location in the toc; this will be a symbol with class
3893 TC. The rest of the arguments are N-byte values to actually put at
3894 this location in the TOC; often there is just one more argument, a
3895 relocatable symbol reference. The size of the value to store
3896 depends on target word size. A 32-bit target uses 4-byte values, a
3897 64-bit target uses 8-byte values.
3899 When not generating XCOFF output, the arguments are the same, but
3900 the first argument is simply ignored. */
3904 int ignore ATTRIBUTE_UNUSED;
3908 /* Define the TOC symbol name. */
3914 if (ppc_toc_csect == (symbolS *) NULL
3915 || ppc_toc_csect != ppc_current_csect)
3917 as_bad (_(".tc not in .toc section"));
3918 ignore_rest_of_line ();
3922 name = input_line_pointer;
3923 endc = get_symbol_end ();
3925 sym = symbol_find_or_make (name);
3927 *input_line_pointer = endc;
3929 if (S_IS_DEFINED (sym))
3933 label = symbol_get_tc (ppc_current_csect)->within;
3934 if (symbol_get_tc (label)->class != XMC_TC0)
3936 as_bad (_(".tc with no label"));
3937 ignore_rest_of_line ();
3941 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
3942 symbol_set_frag (label, symbol_get_frag (sym));
3943 S_SET_VALUE (label, S_GET_VALUE (sym));
3945 while (! is_end_of_line[(unsigned char) *input_line_pointer])
3946 ++input_line_pointer;
3951 S_SET_SEGMENT (sym, now_seg);
3952 symbol_set_frag (sym, frag_now);
3953 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3954 symbol_get_tc (sym)->class = XMC_TC;
3955 symbol_get_tc (sym)->output = 1;
3957 ppc_frob_label (sym);
3960 #endif /* OBJ_XCOFF */
3964 /* Skip the TOC symbol name. */
3965 while (is_part_of_name (*input_line_pointer)
3966 || *input_line_pointer == '['
3967 || *input_line_pointer == ']'
3968 || *input_line_pointer == '{'
3969 || *input_line_pointer == '}')
3970 ++input_line_pointer;
3972 /* Align to a four/eight byte boundary. */
3973 align = ppc_obj64 ? 3 : 2;
3974 frag_align (align, 0, 0);
3975 record_alignment (now_seg, align);
3976 #endif /* OBJ_ELF */
3978 if (*input_line_pointer != ',')
3979 demand_empty_rest_of_line ();
3982 ++input_line_pointer;
3983 cons (ppc_obj64 ? 8 : 4);
3987 /* Pseudo-op .machine. */
3990 ppc_machine (ignore)
3991 int ignore ATTRIBUTE_UNUSED;
3994 #define MAX_HISTORY 100
3995 static unsigned long *cpu_history;
3996 static int curr_hist;
4000 if (*input_line_pointer == '"')
4003 cpu_string = demand_copy_C_string (&len);
4008 cpu_string = input_line_pointer;
4009 c = get_symbol_end ();
4010 cpu_string = xstrdup (cpu_string);
4011 *input_line_pointer = c;
4014 if (cpu_string != NULL)
4016 unsigned long old_cpu = ppc_cpu;
4019 for (p = cpu_string; *p != 0; p++)
4022 if (strcmp (cpu_string, "push") == 0)
4024 if (cpu_history == NULL)
4025 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4027 if (curr_hist >= MAX_HISTORY)
4028 as_bad (_(".machine stack overflow"));
4030 cpu_history[curr_hist++] = ppc_cpu;
4032 else if (strcmp (cpu_string, "pop") == 0)
4035 as_bad (_(".machine stack underflow"));
4037 ppc_cpu = cpu_history[--curr_hist];
4039 else if (parse_cpu (cpu_string))
4042 as_bad (_("invalid machine `%s'"), cpu_string);
4044 if (ppc_cpu != old_cpu)
4045 ppc_setup_opcodes ();
4048 demand_empty_rest_of_line ();
4051 /* See whether a symbol is in the TOC section. */
4054 ppc_is_toc_sym (sym)
4058 return symbol_get_tc (sym)->class == XMC_TC;
4061 const char *sname = segment_name (S_GET_SEGMENT (sym));
4063 return strcmp (sname, ".toc") == 0;
4065 return strcmp (sname, ".got") == 0;
4068 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4072 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4074 /* Set the current section. */
4076 ppc_set_current_section (new)
4079 ppc_previous_section = ppc_current_section;
4080 ppc_current_section = new;
4083 /* pseudo-op: .previous
4084 behaviour: toggles the current section with the previous section.
4086 warnings: "No previous section" */
4089 ppc_previous (ignore)
4090 int ignore ATTRIBUTE_UNUSED;
4094 if (ppc_previous_section == NULL)
4096 as_warn (_("No previous section to return to. Directive ignored."));
4100 subseg_set (ppc_previous_section, 0);
4102 ppc_set_current_section (ppc_previous_section);
4105 /* pseudo-op: .pdata
4106 behaviour: predefined read only data section
4110 initial: .section .pdata "adr3"
4111 a - don't know -- maybe a misprint
4112 d - initialized data
4114 3 - double word aligned (that would be 4 byte boundary)
4117 Tag index tables (also known as the function table) for exception
4118 handling, debugging, etc. */
4122 int ignore ATTRIBUTE_UNUSED;
4124 if (pdata_section == 0)
4126 pdata_section = subseg_new (".pdata", 0);
4128 bfd_set_section_flags (stdoutput, pdata_section,
4129 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4130 | SEC_READONLY | SEC_DATA ));
4132 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4136 pdata_section = subseg_new (".pdata", 0);
4138 ppc_set_current_section (pdata_section);
4141 /* pseudo-op: .ydata
4142 behaviour: predefined read only data section
4146 initial: .section .ydata "drw3"
4147 a - don't know -- maybe a misprint
4148 d - initialized data
4150 3 - double word aligned (that would be 4 byte boundary)
4152 Tag tables (also known as the scope table) for exception handling,
4157 int ignore ATTRIBUTE_UNUSED;
4159 if (ydata_section == 0)
4161 ydata_section = subseg_new (".ydata", 0);
4162 bfd_set_section_flags (stdoutput, ydata_section,
4163 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4164 | SEC_READONLY | SEC_DATA ));
4166 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4170 ydata_section = subseg_new (".ydata", 0);
4172 ppc_set_current_section (ydata_section);
4175 /* pseudo-op: .reldata
4176 behaviour: predefined read write data section
4177 double word aligned (4-byte)
4178 FIXME: relocation is applied to it
4179 FIXME: what's the difference between this and .data?
4182 initial: .section .reldata "drw3"
4183 d - initialized data
4186 3 - double word aligned (that would be 8 byte boundary)
4189 Like .data, but intended to hold data subject to relocation, such as
4190 function descriptors, etc. */
4193 ppc_reldata (ignore)
4194 int ignore ATTRIBUTE_UNUSED;
4196 if (reldata_section == 0)
4198 reldata_section = subseg_new (".reldata", 0);
4200 bfd_set_section_flags (stdoutput, reldata_section,
4201 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4204 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4208 reldata_section = subseg_new (".reldata", 0);
4210 ppc_set_current_section (reldata_section);
4213 /* pseudo-op: .rdata
4214 behaviour: predefined read only data section
4218 initial: .section .rdata "dr3"
4219 d - initialized data
4221 3 - double word aligned (that would be 4 byte boundary) */
4225 int ignore ATTRIBUTE_UNUSED;
4227 if (rdata_section == 0)
4229 rdata_section = subseg_new (".rdata", 0);
4230 bfd_set_section_flags (stdoutput, rdata_section,
4231 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4232 | SEC_READONLY | SEC_DATA ));
4234 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4238 rdata_section = subseg_new (".rdata", 0);
4240 ppc_set_current_section (rdata_section);
4243 /* pseudo-op: .ualong
4244 behaviour: much like .int, with the exception that no alignment is
4246 FIXME: test the alignment statement
4252 int ignore ATTRIBUTE_UNUSED;
4258 /* pseudo-op: .znop <symbol name>
4259 behaviour: Issue a nop instruction
4260 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4261 the supplied symbol name.
4263 warnings: Missing symbol name */
4267 int ignore ATTRIBUTE_UNUSED;
4270 const struct powerpc_opcode *opcode;
4281 /* Strip out the symbol name. */
4282 symbol_name = input_line_pointer;
4283 c = get_symbol_end ();
4285 name = xmalloc (input_line_pointer - symbol_name + 1);
4286 strcpy (name, symbol_name);
4288 sym = symbol_find_or_make (name);
4290 *input_line_pointer = c;
4294 /* Look up the opcode in the hash table. */
4295 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4297 /* Stick in the nop. */
4298 insn = opcode->opcode;
4300 /* Write out the instruction. */
4302 md_number_to_chars (f, insn, 4);
4304 f - frag_now->fr_literal,
4309 BFD_RELOC_16_GOT_PCREL);
4322 register char *name;
4326 register symbolS *symbolP;
4329 name = input_line_pointer;
4330 c = get_symbol_end ();
4332 /* just after name is now '\0'. */
4333 p = input_line_pointer;
4336 if (*input_line_pointer != ',')
4338 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4339 ignore_rest_of_line ();
4343 input_line_pointer++; /* skip ',' */
4344 if ((temp = get_absolute_expression ()) < 0)
4346 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4347 ignore_rest_of_line ();
4353 /* The third argument to .comm is the alignment. */
4354 if (*input_line_pointer != ',')
4358 ++input_line_pointer;
4359 align = get_absolute_expression ();
4362 as_warn (_("ignoring bad alignment"));
4369 symbolP = symbol_find_or_make (name);
4372 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4374 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4375 S_GET_NAME (symbolP));
4376 ignore_rest_of_line ();
4380 if (S_GET_VALUE (symbolP))
4382 if (S_GET_VALUE (symbolP) != (valueT) temp)
4383 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4384 S_GET_NAME (symbolP),
4385 (long) S_GET_VALUE (symbolP),
4390 S_SET_VALUE (symbolP, (valueT) temp);
4391 S_SET_EXTERNAL (symbolP);
4394 demand_empty_rest_of_line ();
4398 * implement the .section pseudo op:
4399 * .section name {, "flags"}
4401 * | +--- optional flags: 'b' for bss
4403 * +-- section name 'l' for lib
4407 * 'd' (apparently m88k for data)
4409 * But if the argument is not a quoted string, treat it as a
4410 * subsegment number.
4412 * FIXME: this is a copy of the section processing from obj-coff.c, with
4413 * additions/changes for the moto-pas assembler support. There are three
4416 * FIXME: I just noticed this. This doesn't work at all really. It it
4417 * setting bits that bfd probably neither understands or uses. The
4418 * correct approach (?) will have to incorporate extra fields attached
4419 * to the section to hold the system specific stuff. (krk)
4422 * 'a' - unknown - referred to in documentation, but no definition supplied
4423 * 'c' - section has code
4424 * 'd' - section has initialized data
4425 * 'u' - section has uninitialized data
4426 * 'i' - section contains directives (info)
4427 * 'n' - section can be discarded
4428 * 'R' - remove section at link time
4430 * Section Protection:
4431 * 'r' - section is readable
4432 * 'w' - section is writeable
4433 * 'x' - section is executable
4434 * 's' - section is sharable
4436 * Section Alignment:
4437 * '0' - align to byte boundary
4438 * '1' - align to halfword undary
4439 * '2' - align to word boundary
4440 * '3' - align to doubleword boundary
4441 * '4' - align to quadword boundary
4442 * '5' - align to 32 byte boundary
4443 * '6' - align to 64 byte boundary
4448 ppc_pe_section (ignore)
4449 int ignore ATTRIBUTE_UNUSED;
4451 /* Strip out the section name. */
4460 section_name = input_line_pointer;
4461 c = get_symbol_end ();
4463 name = xmalloc (input_line_pointer - section_name + 1);
4464 strcpy (name, section_name);
4466 *input_line_pointer = c;
4471 flags = SEC_NO_FLAGS;
4473 if (strcmp (name, ".idata$2") == 0)
4477 else if (strcmp (name, ".idata$3") == 0)
4481 else if (strcmp (name, ".idata$4") == 0)
4485 else if (strcmp (name, ".idata$5") == 0)
4489 else if (strcmp (name, ".idata$6") == 0)
4494 /* Default alignment to 16 byte boundary. */
4497 if (*input_line_pointer == ',')
4499 ++input_line_pointer;
4501 if (*input_line_pointer != '"')
4502 exp = get_absolute_expression ();
4505 ++input_line_pointer;
4506 while (*input_line_pointer != '"'
4507 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4509 switch (*input_line_pointer)
4511 /* Section Contents */
4512 case 'a': /* unknown */
4513 as_bad (_("Unsupported section attribute -- 'a'"));
4515 case 'c': /* code section */
4518 case 'd': /* section has initialized data */
4521 case 'u': /* section has uninitialized data */
4522 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4526 case 'i': /* section contains directives (info) */
4527 /* FIXME: This is IMAGE_SCN_LNK_INFO
4529 flags |= SEC_HAS_CONTENTS;
4531 case 'n': /* section can be discarded */
4534 case 'R': /* Remove section at link time */
4535 flags |= SEC_NEVER_LOAD;
4538 /* Section Protection */
4539 case 'r': /* section is readable */
4540 flags |= IMAGE_SCN_MEM_READ;
4542 case 'w': /* section is writeable */
4543 flags |= IMAGE_SCN_MEM_WRITE;
4545 case 'x': /* section is executable */
4546 flags |= IMAGE_SCN_MEM_EXECUTE;
4548 case 's': /* section is sharable */
4549 flags |= IMAGE_SCN_MEM_SHARED;
4552 /* Section Alignment */
4553 case '0': /* align to byte boundary */
4554 flags |= IMAGE_SCN_ALIGN_1BYTES;
4557 case '1': /* align to halfword boundary */
4558 flags |= IMAGE_SCN_ALIGN_2BYTES;
4561 case '2': /* align to word boundary */
4562 flags |= IMAGE_SCN_ALIGN_4BYTES;
4565 case '3': /* align to doubleword boundary */
4566 flags |= IMAGE_SCN_ALIGN_8BYTES;
4569 case '4': /* align to quadword boundary */
4570 flags |= IMAGE_SCN_ALIGN_16BYTES;
4573 case '5': /* align to 32 byte boundary */
4574 flags |= IMAGE_SCN_ALIGN_32BYTES;
4577 case '6': /* align to 64 byte boundary */
4578 flags |= IMAGE_SCN_ALIGN_64BYTES;
4583 as_bad (_("unknown section attribute '%c'"),
4584 *input_line_pointer);
4587 ++input_line_pointer;
4589 if (*input_line_pointer == '"')
4590 ++input_line_pointer;
4594 sec = subseg_new (name, (subsegT) exp);
4596 ppc_set_current_section (sec);
4598 if (flags != SEC_NO_FLAGS)
4600 if (! bfd_set_section_flags (stdoutput, sec, flags))
4601 as_bad (_("error setting flags for \"%s\": %s"),
4602 bfd_section_name (stdoutput, sec),
4603 bfd_errmsg (bfd_get_error ()));
4606 bfd_set_section_alignment (stdoutput, sec, align);
4611 ppc_pe_function (ignore)
4612 int ignore ATTRIBUTE_UNUSED;
4618 name = input_line_pointer;
4619 endc = get_symbol_end ();
4621 ext_sym = symbol_find_or_make (name);
4623 *input_line_pointer = endc;
4625 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4626 SF_SET_FUNCTION (ext_sym);
4627 SF_SET_PROCESS (ext_sym);
4628 coff_add_linesym (ext_sym);
4630 demand_empty_rest_of_line ();
4634 ppc_pe_tocd (ignore)
4635 int ignore ATTRIBUTE_UNUSED;
4637 if (tocdata_section == 0)
4639 tocdata_section = subseg_new (".tocd", 0);
4640 /* FIXME: section flags won't work. */
4641 bfd_set_section_flags (stdoutput, tocdata_section,
4642 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4643 | SEC_READONLY | SEC_DATA));
4645 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4649 rdata_section = subseg_new (".tocd", 0);
4652 ppc_set_current_section (tocdata_section);
4654 demand_empty_rest_of_line ();
4657 /* Don't adjust TOC relocs to use the section symbol. */
4660 ppc_pe_fix_adjustable (fix)
4663 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4670 /* XCOFF specific symbol and file handling. */
4672 /* Canonicalize the symbol name. We use the to force the suffix, if
4673 any, to use square brackets, and to be in upper case. */
4676 ppc_canonicalize_symbol_name (name)
4681 if (ppc_stab_symbol)
4684 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4698 for (s++; *s != '\0' && *s != brac; s++)
4701 if (*s == '\0' || s[1] != '\0')
4702 as_bad (_("bad symbol suffix"));
4710 /* Set the class of a symbol based on the suffix, if any. This is
4711 called whenever a new symbol is created. */
4714 ppc_symbol_new_hook (sym)
4717 struct ppc_tc_sy *tc;
4720 tc = symbol_get_tc (sym);
4724 tc->real_name = NULL;
4730 if (ppc_stab_symbol)
4733 s = strchr (S_GET_NAME (sym), '[');
4734 if (s == (const char *) NULL)
4736 /* There is no suffix. */
4745 if (strcmp (s, "BS]") == 0)
4749 if (strcmp (s, "DB]") == 0)
4751 else if (strcmp (s, "DS]") == 0)
4755 if (strcmp (s, "GL]") == 0)
4759 if (strcmp (s, "PR]") == 0)
4763 if (strcmp (s, "RO]") == 0)
4765 else if (strcmp (s, "RW]") == 0)
4769 if (strcmp (s, "SV]") == 0)
4773 if (strcmp (s, "TC]") == 0)
4775 else if (strcmp (s, "TI]") == 0)
4777 else if (strcmp (s, "TB]") == 0)
4779 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
4780 tc->class = XMC_TC0;
4783 if (strcmp (s, "UA]") == 0)
4785 else if (strcmp (s, "UC]") == 0)
4789 if (strcmp (s, "XO]") == 0)
4794 if (tc->class == -1)
4795 as_bad (_("Unrecognized symbol suffix"));
4798 /* Set the class of a label based on where it is defined. This
4799 handles symbols without suffixes. Also, move the symbol so that it
4800 follows the csect symbol. */
4803 ppc_frob_label (sym)
4806 if (ppc_current_csect != (symbolS *) NULL)
4808 if (symbol_get_tc (sym)->class == -1)
4809 symbol_get_tc (sym)->class = symbol_get_tc (ppc_current_csect)->class;
4811 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4812 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
4813 &symbol_rootP, &symbol_lastP);
4814 symbol_get_tc (ppc_current_csect)->within = sym;
4818 /* This variable is set by ppc_frob_symbol if any absolute symbols are
4819 seen. It tells ppc_adjust_symtab whether it needs to look through
4822 static bfd_boolean ppc_saw_abs;
4824 /* Change the name of a symbol just before writing it out. Set the
4825 real name if the .rename pseudo-op was used. Otherwise, remove any
4826 class suffix. Return 1 if the symbol should not be included in the
4830 ppc_frob_symbol (sym)
4833 static symbolS *ppc_last_function;
4834 static symbolS *set_end;
4836 /* Discard symbols that should not be included in the output symbol
4838 if (! symbol_used_in_reloc_p (sym)
4839 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
4840 || (! S_IS_EXTERNAL (sym)
4841 && ! symbol_get_tc (sym)->output
4842 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
4845 /* This one will disappear anyway. Don't make a csect sym for it. */
4846 if (sym == abs_section_sym)
4849 if (symbol_get_tc (sym)->real_name != (char *) NULL)
4850 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
4856 name = S_GET_NAME (sym);
4857 s = strchr (name, '[');
4858 if (s != (char *) NULL)
4864 snew = xmalloc (len + 1);
4865 memcpy (snew, name, len);
4868 S_SET_NAME (sym, snew);
4872 if (set_end != (symbolS *) NULL)
4874 SA_SET_SYM_ENDNDX (set_end, sym);
4878 if (SF_GET_FUNCTION (sym))
4880 if (ppc_last_function != (symbolS *) NULL)
4881 as_bad (_("two .function pseudo-ops with no intervening .ef"));
4882 ppc_last_function = sym;
4883 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
4885 resolve_symbol_value (symbol_get_tc (sym)->size);
4886 SA_SET_SYM_FSIZE (sym,
4887 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
4890 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
4891 && strcmp (S_GET_NAME (sym), ".ef") == 0)
4893 if (ppc_last_function == (symbolS *) NULL)
4894 as_bad (_(".ef with no preceding .function"));
4897 set_end = ppc_last_function;
4898 ppc_last_function = NULL;
4900 /* We don't have a C_EFCN symbol, but we need to force the
4901 COFF backend to believe that it has seen one. */
4902 coff_last_function = NULL;
4906 if (! S_IS_EXTERNAL (sym)
4907 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
4908 && S_GET_STORAGE_CLASS (sym) != C_FILE
4909 && S_GET_STORAGE_CLASS (sym) != C_FCN
4910 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
4911 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
4912 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
4913 && S_GET_STORAGE_CLASS (sym) != C_BINCL
4914 && S_GET_STORAGE_CLASS (sym) != C_EINCL
4915 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
4916 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
4918 if (S_GET_STORAGE_CLASS (sym) == C_EXT
4919 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
4922 union internal_auxent *a;
4924 /* Create a csect aux. */
4925 i = S_GET_NUMBER_AUXILIARY (sym);
4926 S_SET_NUMBER_AUXILIARY (sym, i + 1);
4927 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
4928 if (symbol_get_tc (sym)->class == XMC_TC0)
4930 /* This is the TOC table. */
4931 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
4932 a->x_csect.x_scnlen.l = 0;
4933 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
4935 else if (symbol_get_tc (sym)->subseg != 0)
4937 /* This is a csect symbol. x_scnlen is the size of the
4939 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
4940 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4941 S_GET_SEGMENT (sym))
4942 - S_GET_VALUE (sym));
4945 resolve_symbol_value (symbol_get_tc (sym)->next);
4946 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
4947 - S_GET_VALUE (sym));
4949 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
4951 else if (S_GET_SEGMENT (sym) == bss_section)
4953 /* This is a common symbol. */
4954 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
4955 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
4956 if (S_IS_EXTERNAL (sym))
4957 symbol_get_tc (sym)->class = XMC_RW;
4959 symbol_get_tc (sym)->class = XMC_BS;
4961 else if (S_GET_SEGMENT (sym) == absolute_section)
4963 /* This is an absolute symbol. The csect will be created by
4964 ppc_adjust_symtab. */
4966 a->x_csect.x_smtyp = XTY_LD;
4967 if (symbol_get_tc (sym)->class == -1)
4968 symbol_get_tc (sym)->class = XMC_XO;
4970 else if (! S_IS_DEFINED (sym))
4972 /* This is an external symbol. */
4973 a->x_csect.x_scnlen.l = 0;
4974 a->x_csect.x_smtyp = XTY_ER;
4976 else if (symbol_get_tc (sym)->class == XMC_TC)
4980 /* This is a TOC definition. x_scnlen is the size of the
4982 next = symbol_next (sym);
4983 while (symbol_get_tc (next)->class == XMC_TC0)
4984 next = symbol_next (next);
4985 if (next == (symbolS *) NULL
4986 || symbol_get_tc (next)->class != XMC_TC)
4988 if (ppc_after_toc_frag == (fragS *) NULL)
4989 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
4991 - S_GET_VALUE (sym));
4993 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
4994 - S_GET_VALUE (sym));
4998 resolve_symbol_value (next);
4999 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5000 - S_GET_VALUE (sym));
5002 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5008 /* This is a normal symbol definition. x_scnlen is the
5009 symbol index of the containing csect. */
5010 if (S_GET_SEGMENT (sym) == text_section)
5011 csect = ppc_text_csects;
5012 else if (S_GET_SEGMENT (sym) == data_section)
5013 csect = ppc_data_csects;
5017 /* Skip the initial dummy symbol. */
5018 csect = symbol_get_tc (csect)->next;
5020 if (csect == (symbolS *) NULL)
5022 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5023 a->x_csect.x_scnlen.l = 0;
5027 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5029 resolve_symbol_value (symbol_get_tc (csect)->next);
5030 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5031 > S_GET_VALUE (sym))
5033 csect = symbol_get_tc (csect)->next;
5036 a->x_csect.x_scnlen.p =
5037 coffsymbol (symbol_get_bfdsym (csect))->native;
5038 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5041 a->x_csect.x_smtyp = XTY_LD;
5044 a->x_csect.x_parmhash = 0;
5045 a->x_csect.x_snhash = 0;
5046 if (symbol_get_tc (sym)->class == -1)
5047 a->x_csect.x_smclas = XMC_PR;
5049 a->x_csect.x_smclas = symbol_get_tc (sym)->class;
5050 a->x_csect.x_stab = 0;
5051 a->x_csect.x_snstab = 0;
5053 /* Don't let the COFF backend resort these symbols. */
5054 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5056 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5058 /* We want the value to be the symbol index of the referenced
5059 csect symbol. BFD will do that for us if we set the right
5061 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5062 combined_entry_type *c = coffsymbol (bsym)->native;
5064 S_SET_VALUE (sym, (valueT) (size_t) c);
5065 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5067 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5072 /* The value is the offset from the enclosing csect. */
5073 block = symbol_get_tc (sym)->within;
5074 csect = symbol_get_tc (block)->within;
5075 resolve_symbol_value (csect);
5076 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5078 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5079 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5081 /* We want the value to be a file offset into the line numbers.
5082 BFD will do that for us if we set the right flags. We have
5083 already set the value correctly. */
5084 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5090 /* Adjust the symbol table. This creates csect symbols for all
5091 absolute symbols. */
5094 ppc_adjust_symtab ()
5101 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5105 union internal_auxent *a;
5107 if (S_GET_SEGMENT (sym) != absolute_section)
5110 csect = symbol_create (".abs[XO]", absolute_section,
5111 S_GET_VALUE (sym), &zero_address_frag);
5112 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5113 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5114 i = S_GET_NUMBER_AUXILIARY (csect);
5115 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5116 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5117 a->x_csect.x_scnlen.l = 0;
5118 a->x_csect.x_smtyp = XTY_SD;
5119 a->x_csect.x_parmhash = 0;
5120 a->x_csect.x_snhash = 0;
5121 a->x_csect.x_smclas = XMC_XO;
5122 a->x_csect.x_stab = 0;
5123 a->x_csect.x_snstab = 0;
5125 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5127 i = S_GET_NUMBER_AUXILIARY (sym);
5128 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5129 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5130 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5133 ppc_saw_abs = FALSE;
5136 /* Set the VMA for a section. This is called on all the sections in
5140 ppc_frob_section (sec)
5143 static bfd_vma vma = 0;
5145 vma = md_section_align (sec, vma);
5146 bfd_set_section_vma (stdoutput, sec, vma);
5147 vma += bfd_section_size (stdoutput, sec);
5150 #endif /* OBJ_XCOFF */
5152 /* Turn a string in input_line_pointer into a floating point constant
5153 of type TYPE, and store the appropriate bytes in *LITP. The number
5154 of LITTLENUMS emitted is stored in *SIZEP. An error message is
5155 returned, or NULL on OK. */
5158 md_atof (type, litp, sizep)
5164 LITTLENUM_TYPE words[4];
5180 return _("bad call to md_atof");
5183 t = atof_ieee (input_line_pointer, type, words);
5185 input_line_pointer = t;
5189 if (target_big_endian)
5191 for (i = 0; i < prec; i++)
5193 md_number_to_chars (litp, (valueT) words[i], 2);
5199 for (i = prec - 1; i >= 0; i--)
5201 md_number_to_chars (litp, (valueT) words[i], 2);
5209 /* Write a value out to the object file, using the appropriate
5213 md_number_to_chars (buf, val, n)
5218 if (target_big_endian)
5219 number_to_chars_bigendian (buf, val, n);
5221 number_to_chars_littleendian (buf, val, n);
5224 /* Align a section (I don't know why this is machine dependent). */
5227 md_section_align (seg, addr)
5231 int align = bfd_get_section_alignment (stdoutput, seg);
5233 return ((addr + (1 << align) - 1) & (-1 << align));
5236 /* We don't have any form of relaxing. */
5239 md_estimate_size_before_relax (fragp, seg)
5240 fragS *fragp ATTRIBUTE_UNUSED;
5241 asection *seg ATTRIBUTE_UNUSED;
5247 /* Convert a machine dependent frag. We never generate these. */
5250 md_convert_frag (abfd, sec, fragp)
5251 bfd *abfd ATTRIBUTE_UNUSED;
5252 asection *sec ATTRIBUTE_UNUSED;
5253 fragS *fragp ATTRIBUTE_UNUSED;
5258 /* We have no need to default values of symbols. */
5261 md_undefined_symbol (name)
5262 char *name ATTRIBUTE_UNUSED;
5267 /* Functions concerning relocs. */
5269 /* The location from which a PC relative jump should be calculated,
5270 given a PC relative reloc. */
5273 md_pcrel_from_section (fixp, sec)
5275 segT sec ATTRIBUTE_UNUSED;
5277 return fixp->fx_frag->fr_address + fixp->fx_where;
5282 /* This is called to see whether a fixup should be adjusted to use a
5283 section symbol. We take the opportunity to change a fixup against
5284 a symbol in the TOC subsegment into a reloc against the
5285 corresponding .tc symbol. */
5288 ppc_fix_adjustable (fix)
5291 valueT val = resolve_symbol_value (fix->fx_addsy);
5292 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5293 TC_SYMFIELD_TYPE *tc;
5295 if (symseg == absolute_section)
5298 if (ppc_toc_csect != (symbolS *) NULL
5299 && fix->fx_addsy != ppc_toc_csect
5300 && symseg == data_section
5301 && val >= ppc_toc_frag->fr_address
5302 && (ppc_after_toc_frag == (fragS *) NULL
5303 || val < ppc_after_toc_frag->fr_address))
5307 for (sy = symbol_next (ppc_toc_csect);
5308 sy != (symbolS *) NULL;
5309 sy = symbol_next (sy))
5311 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5313 if (sy_tc->class == XMC_TC0)
5315 if (sy_tc->class != XMC_TC)
5317 if (val == resolve_symbol_value (sy))
5320 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5325 as_bad_where (fix->fx_file, fix->fx_line,
5326 _("symbol in .toc does not match any .tc"));
5329 /* Possibly adjust the reloc to be against the csect. */
5330 tc = symbol_get_tc (fix->fx_addsy);
5332 && tc->class != XMC_TC0
5333 && tc->class != XMC_TC
5334 && symseg != bss_section
5335 /* Don't adjust if this is a reloc in the toc section. */
5336 && (symseg != data_section
5337 || ppc_toc_csect == NULL
5338 || val < ppc_toc_frag->fr_address
5339 || (ppc_after_toc_frag != NULL
5340 && val >= ppc_after_toc_frag->fr_address)))
5343 symbolS *next_csect;
5345 if (symseg == text_section)
5346 csect = ppc_text_csects;
5347 else if (symseg == data_section)
5348 csect = ppc_data_csects;
5352 /* Skip the initial dummy symbol. */
5353 csect = symbol_get_tc (csect)->next;
5355 if (csect != (symbolS *) NULL)
5357 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5358 && (symbol_get_frag (next_csect)->fr_address <= val))
5360 /* If the csect address equals the symbol value, then we
5361 have to look through the full symbol table to see
5362 whether this is the csect we want. Note that we will
5363 only get here if the csect has zero length. */
5364 if (symbol_get_frag (csect)->fr_address == val
5365 && S_GET_VALUE (csect) == val)
5369 for (scan = symbol_next (csect);
5371 scan = symbol_next (scan))
5373 if (symbol_get_tc (scan)->subseg != 0)
5375 if (scan == fix->fx_addsy)
5379 /* If we found the symbol before the next csect
5380 symbol, then this is the csect we want. */
5381 if (scan == fix->fx_addsy)
5388 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5389 fix->fx_addsy = csect;
5394 /* Adjust a reloc against a .lcomm symbol to be against the base
5396 if (symseg == bss_section
5397 && ! S_IS_EXTERNAL (fix->fx_addsy))
5399 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5401 fix->fx_offset += val - resolve_symbol_value (sy);
5408 /* A reloc from one csect to another must be kept. The assembler
5409 will, of course, keep relocs between sections, and it will keep
5410 absolute relocs, but we need to force it to keep PC relative relocs
5411 between two csects in the same section. */
5414 ppc_force_relocation (fix)
5417 /* At this point fix->fx_addsy should already have been converted to
5418 a csect symbol. If the csect does not include the fragment, then
5419 we need to force the relocation. */
5421 && fix->fx_addsy != NULL
5422 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5423 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5424 > fix->fx_frag->fr_address)
5425 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5426 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5427 <= fix->fx_frag->fr_address))))
5430 return generic_force_reloc (fix);
5433 #endif /* OBJ_XCOFF */
5436 /* If this function returns non-zero, it guarantees that a relocation
5437 will be emitted for a fixup. */
5440 ppc_force_relocation (fix)
5443 /* Branch prediction relocations must force a relocation, as must
5444 the vtable description relocs. */
5445 switch (fix->fx_r_type)
5447 case BFD_RELOC_PPC_B16_BRTAKEN:
5448 case BFD_RELOC_PPC_B16_BRNTAKEN:
5449 case BFD_RELOC_PPC_BA16_BRTAKEN:
5450 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5451 case BFD_RELOC_PPC64_TOC:
5457 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5458 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5461 return generic_force_reloc (fix);
5465 ppc_fix_adjustable (fix)
5468 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5469 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5470 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5471 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5472 && fix->fx_r_type != BFD_RELOC_GPREL16
5473 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5474 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5475 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5476 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5478 || (fix->fx_subsy != NULL
5479 && (S_GET_SEGMENT (fix->fx_subsy)
5480 == S_GET_SEGMENT (fix->fx_addsy)))
5481 || S_IS_LOCAL (fix->fx_addsy)));
5485 /* Apply a fixup to the object code. This is called for all the
5486 fixups we generated by the call to fix_new_exp, above. In the call
5487 above we used a reloc code which was the largest legal reloc code
5488 plus the operand index. Here we undo that to recover the operand
5489 index. At this point all symbol values should be fully resolved,
5490 and we attempt to completely resolve the reloc. If we can not do
5491 that, we determine the correct reloc code and put it back in the
5495 md_apply_fix3 (fixP, valP, seg)
5498 segT seg ATTRIBUTE_UNUSED;
5500 valueT value = * valP;
5503 if (fixP->fx_addsy != NULL)
5505 /* Hack around bfd_install_relocation brain damage. */
5507 value += fixP->fx_frag->fr_address + fixP->fx_where;
5512 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5513 the symbol values. Since we are using BFD_ASSEMBLER, if we are
5514 doing this relocation the code in write.c is going to call
5515 bfd_install_relocation, which is also going to use the symbol
5516 value. That means that if the reloc is fully resolved we want to
5517 use *valP since bfd_install_relocation is not being used.
5518 However, if the reloc is not fully resolved we do not want to use
5519 *valP, and must use fx_offset instead. However, if the reloc
5520 is PC relative, we do want to use *valP since it includes the
5521 result of md_pcrel_from. This is confusing. */
5522 if (fixP->fx_addsy == (symbolS *) NULL)
5525 else if (fixP->fx_pcrel)
5529 value = fixP->fx_offset;
5532 if (fixP->fx_subsy != (symbolS *) NULL)
5534 /* We can't actually support subtracting a symbol. */
5535 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5538 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5541 const struct powerpc_operand *operand;
5545 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5547 operand = &powerpc_operands[opindex];
5550 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5551 does not generate a reloc. It uses the offset of `sym' within its
5552 csect. Other usages, such as `.long sym', generate relocs. This
5553 is the documented behaviour of non-TOC symbols. */
5554 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5555 && operand->bits == 16
5556 && operand->shift == 0
5557 && (operand->insert == NULL || ppc_obj64)
5558 && fixP->fx_addsy != NULL
5559 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5560 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC
5561 && symbol_get_tc (fixP->fx_addsy)->class != XMC_TC0
5562 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5564 value = fixP->fx_offset;
5569 /* Fetch the instruction, insert the fully resolved operand
5570 value, and stuff the instruction back again. */
5571 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5572 if (target_big_endian)
5573 insn = bfd_getb32 ((unsigned char *) where);
5575 insn = bfd_getl32 ((unsigned char *) where);
5576 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5577 fixP->fx_file, fixP->fx_line);
5578 if (target_big_endian)
5579 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5581 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5584 /* Nothing else to do here. */
5587 assert (fixP->fx_addsy != NULL);
5589 /* Determine a BFD reloc value based on the operand information.
5590 We are only prepared to turn a few of the operands into
5592 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5593 && operand->bits == 26
5594 && operand->shift == 0)
5595 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5596 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5597 && operand->bits == 16
5598 && operand->shift == 0)
5600 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5603 if (target_big_endian)
5604 fixP->fx_where += 2;
5607 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5608 && operand->bits == 26
5609 && operand->shift == 0)
5610 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5611 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5612 && operand->bits == 16
5613 && operand->shift == 0)
5615 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5618 if (target_big_endian)
5619 fixP->fx_where += 2;
5622 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5623 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5624 && operand->bits == 16
5625 && operand->shift == 0)
5627 if (ppc_is_toc_sym (fixP->fx_addsy))
5629 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5632 && (operand->flags & PPC_OPERAND_DS) != 0)
5633 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5638 fixP->fx_r_type = BFD_RELOC_16;
5641 && (operand->flags & PPC_OPERAND_DS) != 0)
5642 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5646 if (target_big_endian)
5647 fixP->fx_where += 2;
5649 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5655 /* Use expr_symbol_where to see if this is an expression
5657 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5658 as_bad_where (fixP->fx_file, fixP->fx_line,
5659 _("unresolved expression that must be resolved"));
5661 as_bad_where (fixP->fx_file, fixP->fx_line,
5662 _("unsupported relocation against %s"),
5663 S_GET_NAME (fixP->fx_addsy));
5671 ppc_elf_validate_fix (fixP, seg);
5673 switch (fixP->fx_r_type)
5675 case BFD_RELOC_CTOR:
5682 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5686 case BFD_RELOC_32_PCREL:
5687 case BFD_RELOC_PPC_EMB_NADDR32:
5688 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5695 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5698 case BFD_RELOC_64_PCREL:
5699 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5703 case BFD_RELOC_LO16:
5705 case BFD_RELOC_GPREL16:
5706 case BFD_RELOC_16_GOT_PCREL:
5707 case BFD_RELOC_16_GOTOFF:
5708 case BFD_RELOC_LO16_GOTOFF:
5709 case BFD_RELOC_HI16_GOTOFF:
5710 case BFD_RELOC_HI16_S_GOTOFF:
5711 case BFD_RELOC_16_BASEREL:
5712 case BFD_RELOC_LO16_BASEREL:
5713 case BFD_RELOC_HI16_BASEREL:
5714 case BFD_RELOC_HI16_S_BASEREL:
5715 case BFD_RELOC_PPC_EMB_NADDR16:
5716 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5717 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5718 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5719 case BFD_RELOC_PPC_EMB_SDAI16:
5720 case BFD_RELOC_PPC_EMB_SDA2REL:
5721 case BFD_RELOC_PPC_EMB_SDA2I16:
5722 case BFD_RELOC_PPC_EMB_RELSEC16:
5723 case BFD_RELOC_PPC_EMB_RELST_LO:
5724 case BFD_RELOC_PPC_EMB_RELST_HI:
5725 case BFD_RELOC_PPC_EMB_RELST_HA:
5726 case BFD_RELOC_PPC_EMB_RELSDA:
5727 case BFD_RELOC_PPC_TOC16:
5729 case BFD_RELOC_PPC64_TOC16_LO:
5730 case BFD_RELOC_PPC64_TOC16_HI:
5731 case BFD_RELOC_PPC64_TOC16_HA:
5735 if (fixP->fx_addsy != NULL)
5736 as_bad_where (fixP->fx_file, fixP->fx_line,
5737 _("cannot emit PC relative %s relocation against %s"),
5738 bfd_get_reloc_code_name (fixP->fx_r_type),
5739 S_GET_NAME (fixP->fx_addsy));
5741 as_bad_where (fixP->fx_file, fixP->fx_line,
5742 _("cannot emit PC relative %s relocation"),
5743 bfd_get_reloc_code_name (fixP->fx_r_type));
5746 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5750 /* This case happens when you write, for example,
5752 where L1 and L2 are defined later. */
5753 case BFD_RELOC_HI16:
5756 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5760 case BFD_RELOC_HI16_S:
5763 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5768 case BFD_RELOC_PPC64_HIGHER:
5771 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5772 PPC_HIGHER (value), 2);
5775 case BFD_RELOC_PPC64_HIGHER_S:
5778 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5779 PPC_HIGHERA (value), 2);
5782 case BFD_RELOC_PPC64_HIGHEST:
5785 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5786 PPC_HIGHEST (value), 2);
5789 case BFD_RELOC_PPC64_HIGHEST_S:
5792 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5793 PPC_HIGHESTA (value), 2);
5796 case BFD_RELOC_PPC64_ADDR16_DS:
5797 case BFD_RELOC_PPC64_ADDR16_LO_DS:
5798 case BFD_RELOC_PPC64_GOT16_DS:
5799 case BFD_RELOC_PPC64_GOT16_LO_DS:
5800 case BFD_RELOC_PPC64_PLT16_LO_DS:
5801 case BFD_RELOC_PPC64_SECTOFF_DS:
5802 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
5803 case BFD_RELOC_PPC64_TOC16_DS:
5804 case BFD_RELOC_PPC64_TOC16_LO_DS:
5805 case BFD_RELOC_PPC64_PLTGOT16_DS:
5806 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
5810 unsigned char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
5811 unsigned long val, mask;
5813 if (target_big_endian)
5814 val = bfd_getb32 (where - 2);
5816 val = bfd_getl32 (where);
5818 /* lq insns reserve the four lsbs. */
5819 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
5820 && (val & (0x3f << 26)) == (56u << 26))
5822 val |= value & mask;
5823 if (target_big_endian)
5824 bfd_putb16 ((bfd_vma) val, where);
5826 bfd_putl16 ((bfd_vma) val, where);
5830 case BFD_RELOC_PPC_B16_BRTAKEN:
5831 case BFD_RELOC_PPC_B16_BRNTAKEN:
5832 case BFD_RELOC_PPC_BA16_BRTAKEN:
5833 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5836 case BFD_RELOC_PPC_TLS:
5837 case BFD_RELOC_PPC_DTPMOD:
5838 case BFD_RELOC_PPC_TPREL16:
5839 case BFD_RELOC_PPC_TPREL16_LO:
5840 case BFD_RELOC_PPC_TPREL16_HI:
5841 case BFD_RELOC_PPC_TPREL16_HA:
5842 case BFD_RELOC_PPC_TPREL:
5843 case BFD_RELOC_PPC_DTPREL16:
5844 case BFD_RELOC_PPC_DTPREL16_LO:
5845 case BFD_RELOC_PPC_DTPREL16_HI:
5846 case BFD_RELOC_PPC_DTPREL16_HA:
5847 case BFD_RELOC_PPC_DTPREL:
5848 case BFD_RELOC_PPC_GOT_TLSGD16:
5849 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
5850 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
5851 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
5852 case BFD_RELOC_PPC_GOT_TLSLD16:
5853 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
5854 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
5855 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
5856 case BFD_RELOC_PPC_GOT_TPREL16:
5857 case BFD_RELOC_PPC_GOT_TPREL16_LO:
5858 case BFD_RELOC_PPC_GOT_TPREL16_HI:
5859 case BFD_RELOC_PPC_GOT_TPREL16_HA:
5860 case BFD_RELOC_PPC_GOT_DTPREL16:
5861 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
5862 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
5863 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
5864 case BFD_RELOC_PPC64_TPREL16_DS:
5865 case BFD_RELOC_PPC64_TPREL16_LO_DS:
5866 case BFD_RELOC_PPC64_TPREL16_HIGHER:
5867 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
5868 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
5869 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
5870 case BFD_RELOC_PPC64_DTPREL16_DS:
5871 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
5872 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
5873 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
5874 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
5875 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
5878 /* Because SDA21 modifies the register field, the size is set to 4
5879 bytes, rather than 2, so offset it here appropriately. */
5880 case BFD_RELOC_PPC_EMB_SDA21:
5884 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
5885 + ((target_big_endian) ? 2 : 0),
5892 /* This can occur if there is a bug in the input assembler, eg:
5893 ".byte <undefined_symbol> - ." */
5895 as_bad (_("Unable to handle reference to symbol %s"),
5896 S_GET_NAME (fixP->fx_addsy));
5898 as_bad (_("Unable to resolve expression"));
5902 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5906 case BFD_RELOC_24_PLT_PCREL:
5907 case BFD_RELOC_PPC_LOCAL24PC:
5908 if (!fixP->fx_pcrel && !fixP->fx_done)
5916 /* Fetch the instruction, insert the fully resolved operand
5917 value, and stuff the instruction back again. */
5918 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5919 if (target_big_endian)
5920 insn = bfd_getb32 ((unsigned char *) where);
5922 insn = bfd_getl32 ((unsigned char *) where);
5923 if ((value & 3) != 0)
5924 as_bad_where (fixP->fx_file, fixP->fx_line,
5925 _("must branch to an address a multiple of 4"));
5926 if ((offsetT) value < -0x40000000
5927 || (offsetT) value >= 0x40000000)
5928 as_bad_where (fixP->fx_file, fixP->fx_line,
5929 _("@local or @plt branch destination is too far away, %ld bytes"),
5931 insn = insn | (value & 0x03fffffc);
5932 if (target_big_endian)
5933 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5935 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5939 case BFD_RELOC_VTABLE_INHERIT:
5942 && !S_IS_DEFINED (fixP->fx_addsy)
5943 && !S_IS_WEAK (fixP->fx_addsy))
5944 S_SET_WEAK (fixP->fx_addsy);
5947 case BFD_RELOC_VTABLE_ENTRY:
5952 /* Generated by reference to `sym@tocbase'. The sym is
5953 ignored by the linker. */
5954 case BFD_RELOC_PPC64_TOC:
5960 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
5967 fixP->fx_addnumber = value;
5969 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
5970 fixP->fx_addnumber = 0;
5974 fixP->fx_addnumber = 0;
5976 /* We want to use the offset within the data segment of the
5977 symbol, not the actual VMA of the symbol. */
5978 fixP->fx_addnumber =
5979 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy));
5985 /* Generate a reloc for a fixup. */
5988 tc_gen_reloc (seg, fixp)
5989 asection *seg ATTRIBUTE_UNUSED;
5994 reloc = (arelent *) xmalloc (sizeof (arelent));
5996 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
5997 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
5998 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
5999 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6000 if (reloc->howto == (reloc_howto_type *) NULL)
6002 as_bad_where (fixp->fx_file, fixp->fx_line,
6003 _("reloc %d not supported by object file format"),
6004 (int) fixp->fx_r_type);
6007 reloc->addend = fixp->fx_addnumber;
6013 ppc_cfi_frame_initial_instructions ()
6015 cfi_add_CFA_def_cfa (1, 0);
6019 tc_ppc_regname_to_dw2regnum (const char *regname)
6021 unsigned int regnum = -1;
6025 static struct { char *name; int dw2regnum; } regnames[] =
6027 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6028 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6029 { "cc", 68 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6030 { "spe_acc", 111 }, { "spefscr", 112 }
6033 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6034 if (strcmp (regnames[i].name, regname) == 0)
6035 return regnames[i].dw2regnum;
6037 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6039 p = regname + 1 + (regname[1] == '.');
6040 regnum = strtoul (p, &q, 10);
6041 if (p == q || *q || regnum >= 32)
6043 if (regname[0] == 'f')
6045 else if (regname[0] == 'v')
6048 else if (regname[0] == 'c' && regname[1] == 'r')
6050 p = regname + 2 + (regname[2] == '.');
6051 if (p[0] < '0' || p[0] > '7' || p[1])
6053 regnum = p[0] - '0' + 68;