1 /* tc-ppc.c -- Assemble for the PowerPC or POWER (RS/6000)
2 Copyright 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003,
3 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012
4 Free Software Foundation, Inc.
5 Written by Ian Lance Taylor, Cygnus Support.
7 This file is part of GAS, the GNU Assembler.
9 GAS is free software; you can redistribute it and/or modify
10 it under the terms of the GNU General Public License as published by
11 the Free Software Foundation; either version 3, or (at your option)
14 GAS is distributed in the hope that it will be useful,
15 but WITHOUT ANY WARRANTY; without even the implied warranty of
16 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 GNU General Public License for more details.
19 You should have received a copy of the GNU General Public License
20 along with GAS; see the file COPYING. If not, write to the Free
21 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
25 #include "safe-ctype.h"
27 #include "dw2gencfi.h"
28 #include "opcode/ppc.h"
32 #include "dwarf2dbg.h"
40 #include "coff/xcoff.h"
44 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
46 /* Tell the main code what the endianness is. */
47 extern int target_big_endian;
49 /* Whether or not, we've set target_big_endian. */
50 static int set_target_endian = 0;
52 /* Whether to use user friendly register names. */
53 #ifndef TARGET_REG_NAMES_P
55 #define TARGET_REG_NAMES_P TRUE
57 #define TARGET_REG_NAMES_P FALSE
61 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
64 /* #lo(value) denotes the least significant 16 bits of the indicated. */
65 #define PPC_LO(v) ((v) & 0xffff)
67 /* Split the indicated value with the msbs in bits 11-15
68 and the lsbs in bits 21-31. */
69 #define PPC_VLE_SPLIT16A(v) ((v & 0xf800) << 11) | (v & 0x7ff)
71 /* Split the indicated value with the msbs in bits 6-10
72 and the lsbs in bits 21-31. */
73 #define PPC_VLE_SPLIT16D(v) ((v & 0xf800) << 5) | (v & 0x7ff)
75 /* #lo(value) denotes the lsb 16 bits in split16a format. */
76 #define PPC_VLE_LO16A(v) PPC_VLE_SPLIT16A(PPC_LO(v))
78 /* #lo(value) denotes the lsb 16 bits in split16d format. */
79 #define PPC_VLE_LO16D(v) PPC_VLE_SPLIT16D(PPC_LO(v))
81 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
82 #define PPC_HI(v) (((v) >> 16) & 0xffff)
84 /* #lo(value) denotes the msb 16 bits in split16a format. */
85 #define PPC_VLE_HI16A(v) PPC_VLE_SPLIT16A(PPC_HI(v))
87 /* #lo(value) denotes the msb 16 bits in split16d format. */
88 #define PPC_VLE_HI16D(v) PPC_VLE_SPLIT16D(PPC_HI(v))
90 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
91 the indicated value, compensating for #lo() being treated as a
93 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
95 /* #ha(value) denotes the high adjusted value in split16a format. */
96 #define PPC_VLE_HA16A(v) PPC_VLE_SPLIT16A(PPC_HA(v))
98 /* #ha(value) denotes the high adjusted value in split16d format. */
99 #define PPC_VLE_HA16D(v) PPC_VLE_SPLIT16D(PPC_HA(v))
101 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
102 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
104 /* #highera(value) denotes bits 32 through 47 of the indicated value,
105 compensating for #lo() being treated as a signed number. */
106 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
108 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
109 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
111 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
112 compensating for #lo being treated as a signed number. */
113 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
115 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
117 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
119 static void ppc_macro (char *, const struct powerpc_macro *);
120 static void ppc_byte (int);
122 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
123 static void ppc_tc (int);
124 static void ppc_machine (int);
128 static void ppc_comm (int);
129 static void ppc_bb (int);
130 static void ppc_bc (int);
131 static void ppc_bf (int);
132 static void ppc_biei (int);
133 static void ppc_bs (int);
134 static void ppc_eb (int);
135 static void ppc_ec (int);
136 static void ppc_ef (int);
137 static void ppc_es (int);
138 static void ppc_csect (int);
139 static void ppc_dwsect (int);
140 static void ppc_change_csect (symbolS *, offsetT);
141 static void ppc_function (int);
142 static void ppc_extern (int);
143 static void ppc_lglobl (int);
144 static void ppc_ref (int);
145 static void ppc_section (int);
146 static void ppc_named_section (int);
147 static void ppc_stabx (int);
148 static void ppc_rename (int);
149 static void ppc_toc (int);
150 static void ppc_xcoff_cons (int);
151 static void ppc_vbyte (int);
155 static void ppc_elf_cons (int);
156 static void ppc_elf_rdata (int);
157 static void ppc_elf_lcomm (int);
161 static void ppc_previous (int);
162 static void ppc_pdata (int);
163 static void ppc_ydata (int);
164 static void ppc_reldata (int);
165 static void ppc_rdata (int);
166 static void ppc_ualong (int);
167 static void ppc_znop (int);
168 static void ppc_pe_comm (int);
169 static void ppc_pe_section (int);
170 static void ppc_pe_function (int);
171 static void ppc_pe_tocd (int);
174 /* Generic assembler global variables which must be defined by all
178 /* This string holds the chars that always start a comment. If the
179 pre-processor is disabled, these aren't very useful. The macro
180 tc_comment_chars points to this. We use this, rather than the
181 usual comment_chars, so that we can switch for Solaris conventions. */
182 static const char ppc_solaris_comment_chars[] = "#!";
183 static const char ppc_eabi_comment_chars[] = "#";
185 #ifdef TARGET_SOLARIS_COMMENT
186 const char *ppc_comment_chars = ppc_solaris_comment_chars;
188 const char *ppc_comment_chars = ppc_eabi_comment_chars;
191 const char comment_chars[] = "#";
194 /* Characters which start a comment at the beginning of a line. */
195 const char line_comment_chars[] = "#";
197 /* Characters which may be used to separate multiple commands on a
199 const char line_separator_chars[] = ";";
201 /* Characters which are used to indicate an exponent in a floating
203 const char EXP_CHARS[] = "eE";
205 /* Characters which mean that a number is a floating point constant,
207 const char FLT_CHARS[] = "dD";
209 /* Anything that can start an operand needs to be mentioned here,
210 to stop the input scrubber eating whitespace. */
211 const char ppc_symbol_chars[] = "%[";
213 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
214 int ppc_cie_data_alignment;
216 /* More than this number of nops in an alignment op gets a branch
218 unsigned long nop_limit = 4;
220 /* The type of processor we are assembling for. This is one or more
221 of the PPC_OPCODE flags defined in opcode/ppc.h. */
222 ppc_cpu_t ppc_cpu = 0;
224 /* Flags set on encountering toc relocs. */
226 has_large_toc_reloc = 1,
227 has_small_toc_reloc = 2
230 /* The target specific pseudo-ops which we support. */
232 const pseudo_typeS md_pseudo_table[] =
234 /* Pseudo-ops which must be overridden. */
235 { "byte", ppc_byte, 0 },
238 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
239 legitimately belong in the obj-*.c file. However, XCOFF is based
240 on COFF, and is only implemented for the RS/6000. We just use
241 obj-coff.c, and add what we need here. */
242 { "comm", ppc_comm, 0 },
243 { "lcomm", ppc_comm, 1 },
247 { "bi", ppc_biei, 0 },
249 { "csect", ppc_csect, 0 },
250 { "dwsect", ppc_dwsect, 0 },
251 { "data", ppc_section, 'd' },
255 { "ei", ppc_biei, 1 },
257 { "extern", ppc_extern, 0 },
258 { "function", ppc_function, 0 },
259 { "lglobl", ppc_lglobl, 0 },
260 { "ref", ppc_ref, 0 },
261 { "rename", ppc_rename, 0 },
262 { "section", ppc_named_section, 0 },
263 { "stabx", ppc_stabx, 0 },
264 { "text", ppc_section, 't' },
265 { "toc", ppc_toc, 0 },
266 { "long", ppc_xcoff_cons, 2 },
267 { "llong", ppc_xcoff_cons, 3 },
268 { "word", ppc_xcoff_cons, 1 },
269 { "short", ppc_xcoff_cons, 1 },
270 { "vbyte", ppc_vbyte, 0 },
274 { "llong", ppc_elf_cons, 8 },
275 { "quad", ppc_elf_cons, 8 },
276 { "long", ppc_elf_cons, 4 },
277 { "word", ppc_elf_cons, 2 },
278 { "short", ppc_elf_cons, 2 },
279 { "rdata", ppc_elf_rdata, 0 },
280 { "rodata", ppc_elf_rdata, 0 },
281 { "lcomm", ppc_elf_lcomm, 0 },
285 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
286 { "previous", ppc_previous, 0 },
287 { "pdata", ppc_pdata, 0 },
288 { "ydata", ppc_ydata, 0 },
289 { "reldata", ppc_reldata, 0 },
290 { "rdata", ppc_rdata, 0 },
291 { "ualong", ppc_ualong, 0 },
292 { "znop", ppc_znop, 0 },
293 { "comm", ppc_pe_comm, 0 },
294 { "lcomm", ppc_pe_comm, 1 },
295 { "section", ppc_pe_section, 0 },
296 { "function", ppc_pe_function,0 },
297 { "tocd", ppc_pe_tocd, 0 },
300 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
302 { "machine", ppc_machine, 0 },
309 /* Predefined register names if -mregnames (or default for Windows NT).
310 In general, there are lots of them, in an attempt to be compatible
311 with a number of other Windows NT assemblers. */
313 /* Structure to hold information about predefined registers. */
320 /* List of registers that are pre-defined:
322 Each general register has predefined names of the form:
323 1. r<reg_num> which has the value <reg_num>.
324 2. r.<reg_num> which has the value <reg_num>.
326 Each floating point register has predefined names of the form:
327 1. f<reg_num> which has the value <reg_num>.
328 2. f.<reg_num> which has the value <reg_num>.
330 Each vector unit register has predefined names of the form:
331 1. v<reg_num> which has the value <reg_num>.
332 2. v.<reg_num> which has the value <reg_num>.
334 Each condition register has predefined names of the form:
335 1. cr<reg_num> which has the value <reg_num>.
336 2. cr.<reg_num> which has the value <reg_num>.
338 There are individual registers as well:
339 sp or r.sp has the value 1
340 rtoc or r.toc has the value 2
341 fpscr has the value 0
347 dsisr has the value 18
349 sdr1 has the value 25
350 srr0 has the value 26
351 srr1 has the value 27
353 The table is sorted. Suitable for searching by a binary search. */
355 static const struct pd_reg pre_defined_registers[] =
357 { "cr.0", 0 }, /* Condition Registers */
377 { "dar", 19 }, /* Data Access Register */
378 { "dec", 22 }, /* Decrementer */
379 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
381 { "f.0", 0 }, /* Floating point registers */
408 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
474 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
515 /* Quantization registers used with pair single instructions. */
533 { "lr", 8 }, /* Link Register */
537 { "r.0", 0 }, /* General Purpose Registers */
570 { "r.sp", 1 }, /* Stack Pointer */
572 { "r.toc", 2 }, /* Pointer to the table of contents */
574 { "r0", 0 }, /* More general purpose registers */
607 { "rtoc", 2 }, /* Table of contents */
609 { "sdr1", 25 }, /* Storage Description Register 1 */
613 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
614 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
616 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
682 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
816 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
818 /* Given NAME, find the register number associated with that name, return
819 the integer value associated with the given name or -1 on failure. */
822 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
824 int middle, low, high;
832 middle = (low + high) / 2;
833 cmp = strcasecmp (name, regs[middle].name);
839 return regs[middle].value;
847 * Summary of register_name.
849 * in: Input_line_pointer points to 1st char of operand.
851 * out: A expressionS.
852 * The operand may have been a register: in this case, X_op == O_register,
853 * X_add_number is set to the register number, and truth is returned.
854 * Input_line_pointer->(next non-blank) char after operand, or is in its
859 register_name (expressionS *expressionP)
866 /* Find the spelling of the operand. */
867 start = name = input_line_pointer;
868 if (name[0] == '%' && ISALPHA (name[1]))
869 name = ++input_line_pointer;
871 else if (!reg_names_p || !ISALPHA (name[0]))
874 c = get_symbol_end ();
875 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
877 /* Put back the delimiting char. */
878 *input_line_pointer = c;
880 /* Look to see if it's in the register table. */
883 expressionP->X_op = O_register;
884 expressionP->X_add_number = reg_number;
886 /* Make the rest nice. */
887 expressionP->X_add_symbol = NULL;
888 expressionP->X_op_symbol = NULL;
892 /* Reset the line as if we had not done anything. */
893 input_line_pointer = start;
897 /* This function is called for each symbol seen in an expression. It
898 handles the special parsing which PowerPC assemblers are supposed
899 to use for condition codes. */
901 /* Whether to do the special parsing. */
902 static bfd_boolean cr_operand;
904 /* Names to recognize in a condition code. This table is sorted. */
905 static const struct pd_reg cr_names[] =
922 /* Parsing function. This returns non-zero if it recognized an
926 ppc_parse_name (const char *name, expressionS *exp)
935 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
940 exp->X_op = O_constant;
941 exp->X_add_number = val;
946 /* Local variables. */
948 /* Whether to target xcoff64/elf64. */
949 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
951 /* Opcode hash table. */
952 static struct hash_control *ppc_hash;
954 /* Macro hash table. */
955 static struct hash_control *ppc_macro_hash;
958 /* What type of shared library support to use. */
959 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
961 /* Flags to set in the elf header. */
962 static flagword ppc_flags = 0;
964 /* Whether this is Solaris or not. */
965 #ifdef TARGET_SOLARIS_COMMENT
966 #define SOLARIS_P TRUE
968 #define SOLARIS_P FALSE
971 static bfd_boolean msolaris = SOLARIS_P;
976 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
977 using a bunch of different sections. These assembler sections,
978 however, are all encompassed within the .text or .data sections of
979 the final output file. We handle this by using different
980 subsegments within these main segments. */
982 /* Next subsegment to allocate within the .text segment. */
983 static subsegT ppc_text_subsegment = 2;
985 /* Linked list of csects in the text section. */
986 static symbolS *ppc_text_csects;
988 /* Next subsegment to allocate within the .data segment. */
989 static subsegT ppc_data_subsegment = 2;
991 /* Linked list of csects in the data section. */
992 static symbolS *ppc_data_csects;
994 /* The current csect. */
995 static symbolS *ppc_current_csect;
997 /* The RS/6000 assembler uses a TOC which holds addresses of functions
998 and variables. Symbols are put in the TOC with the .tc pseudo-op.
999 A special relocation is used when accessing TOC entries. We handle
1000 the TOC as a subsegment within the .data segment. We set it up if
1001 we see a .toc pseudo-op, and save the csect symbol here. */
1002 static symbolS *ppc_toc_csect;
1004 /* The first frag in the TOC subsegment. */
1005 static fragS *ppc_toc_frag;
1007 /* The first frag in the first subsegment after the TOC in the .data
1008 segment. NULL if there are no subsegments after the TOC. */
1009 static fragS *ppc_after_toc_frag;
1011 /* The current static block. */
1012 static symbolS *ppc_current_block;
1014 /* The COFF debugging section; set by md_begin. This is not the
1015 .debug section, but is instead the secret BFD section which will
1016 cause BFD to set the section number of a symbol to N_DEBUG. */
1017 static asection *ppc_coff_debug_section;
1019 /* Structure to set the length field of the dwarf sections. */
1020 struct dw_subsection {
1021 /* Subsections are simply linked. */
1022 struct dw_subsection *link;
1024 /* The subsection number. */
1027 /* Expression to compute the length of the section. */
1028 expressionS end_exp;
1031 static struct dw_section {
1032 /* Corresponding section. */
1035 /* Simply linked list of subsections with a label. */
1036 struct dw_subsection *list_subseg;
1038 /* The anonymous subsection. */
1039 struct dw_subsection *anon_subseg;
1040 } dw_sections[XCOFF_DWSECT_NBR_NAMES];
1041 #endif /* OBJ_XCOFF */
1045 /* Various sections that we need for PE coff support. */
1046 static segT ydata_section;
1047 static segT pdata_section;
1048 static segT reldata_section;
1049 static segT rdata_section;
1050 static segT tocdata_section;
1052 /* The current section and the previous section. See ppc_previous. */
1053 static segT ppc_previous_section;
1054 static segT ppc_current_section;
1059 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
1060 #define PPC_APUINFO_ISEL 0x40
1061 #define PPC_APUINFO_PMR 0x41
1062 #define PPC_APUINFO_RFMCI 0x42
1063 #define PPC_APUINFO_CACHELCK 0x43
1064 #define PPC_APUINFO_SPE 0x100
1065 #define PPC_APUINFO_EFS 0x101
1066 #define PPC_APUINFO_BRLOCK 0x102
1067 #define PPC_APUINFO_VLE 0x104
1070 * We keep a list of APUinfo
1072 unsigned long *ppc_apuinfo_list;
1073 unsigned int ppc_apuinfo_num;
1074 unsigned int ppc_apuinfo_num_alloc;
1075 #endif /* OBJ_ELF */
1078 const char *const md_shortopts = "b:l:usm:K:VQ:";
1080 const char *const md_shortopts = "um:";
1082 #define OPTION_NOPS (OPTION_MD_BASE + 0)
1083 const struct option md_longopts[] = {
1084 {"nops", required_argument, NULL, OPTION_NOPS},
1085 {NULL, no_argument, NULL, 0}
1087 const size_t md_longopts_size = sizeof (md_longopts);
1089 /* Convert the target integer stored in N bytes in BUF to a host
1090 integer, returning that value. */
1093 md_chars_to_number (char *buf, int n)
1096 unsigned char *p = (unsigned char *) buf;
1098 if (target_big_endian)
1103 result |= (*p++ & 0xff);
1111 result |= (p[n] & 0xff);
1119 md_parse_option (int c, char *arg)
1126 /* -u means that any undefined symbols should be treated as
1127 external, which is the default for gas anyhow. */
1132 /* Solaris as takes -le (presumably for little endian). For completeness
1133 sake, recognize -be also. */
1134 if (strcmp (arg, "e") == 0)
1136 target_big_endian = 0;
1137 set_target_endian = 1;
1138 if (ppc_cpu & PPC_OPCODE_VLE)
1139 as_bad (_("the use of -mvle requires big endian."));
1147 if (strcmp (arg, "e") == 0)
1149 target_big_endian = 1;
1150 set_target_endian = 1;
1158 /* Recognize -K PIC. */
1159 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1162 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1170 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1172 if (strcmp (arg, "64") == 0)
1176 if (ppc_cpu & PPC_OPCODE_VLE)
1177 as_bad (_("the use of -mvle requires -a32."));
1179 as_fatal (_("%s unsupported"), "-a64");
1182 else if (strcmp (arg, "32") == 0)
1189 new_cpu = ppc_parse_cpu (ppc_cpu, arg);
1193 if (strcmp (arg, "vle") == 0)
1195 if (set_target_endian && target_big_endian == 0)
1196 as_bad (_("the use of -mvle requires big endian."));
1198 as_bad (_("the use of -mvle requires -a32."));
1202 else if (strcmp (arg, "regnames") == 0)
1205 else if (strcmp (arg, "no-regnames") == 0)
1206 reg_names_p = FALSE;
1209 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1210 that require relocation. */
1211 else if (strcmp (arg, "relocatable") == 0)
1213 shlib = SHLIB_MRELOCATABLE;
1214 ppc_flags |= EF_PPC_RELOCATABLE;
1217 else if (strcmp (arg, "relocatable-lib") == 0)
1219 shlib = SHLIB_MRELOCATABLE;
1220 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1223 /* -memb, set embedded bit. */
1224 else if (strcmp (arg, "emb") == 0)
1225 ppc_flags |= EF_PPC_EMB;
1227 /* -mlittle/-mbig set the endianness. */
1228 else if (strcmp (arg, "little") == 0
1229 || strcmp (arg, "little-endian") == 0)
1231 target_big_endian = 0;
1232 set_target_endian = 1;
1233 if (ppc_cpu & PPC_OPCODE_VLE)
1234 as_bad (_("the use of -mvle requires big endian."));
1237 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1239 target_big_endian = 1;
1240 set_target_endian = 1;
1243 else if (strcmp (arg, "solaris") == 0)
1246 ppc_comment_chars = ppc_solaris_comment_chars;
1249 else if (strcmp (arg, "no-solaris") == 0)
1252 ppc_comment_chars = ppc_eabi_comment_chars;
1257 as_bad (_("invalid switch -m%s"), arg);
1263 /* -V: SVR4 argument to print version ID. */
1265 print_version_id ();
1268 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1269 should be emitted or not. FIXME: Not implemented. */
1273 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1274 rather than .stabs.excl, which is ignored by the linker.
1275 FIXME: Not implemented. */
1286 nop_limit = strtoul (optarg, &end, 0);
1288 as_bad (_("--nops needs a numeric argument"));
1300 md_show_usage (FILE *stream)
1302 fprintf (stream, _("\
1304 -a32 generate ELF32/XCOFF32\n\
1305 -a64 generate ELF64/XCOFF64\n\
1307 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1308 -mpwr generate code for POWER (RIOS1)\n\
1309 -m601 generate code for PowerPC 601\n\
1310 -mppc, -mppc32, -m603, -m604\n\
1311 generate code for PowerPC 603/604\n\
1312 -m403 generate code for PowerPC 403\n\
1313 -m405 generate code for PowerPC 405\n\
1314 -m440 generate code for PowerPC 440\n\
1315 -m464 generate code for PowerPC 464\n\
1316 -m476 generate code for PowerPC 476\n\
1317 -m7400, -m7410, -m7450, -m7455\n\
1318 generate code for PowerPC 7400/7410/7450/7455\n\
1319 -m750cl generate code for PowerPC 750cl\n"));
1320 fprintf (stream, _("\
1321 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1322 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1323 -mbooke generate code for 32-bit PowerPC BookE\n\
1324 -ma2 generate code for A2 architecture\n\
1325 -mpower4, -mpwr4 generate code for Power4 architecture\n\
1326 -mpower5, -mpwr5, -mpwr5x\n\
1327 generate code for Power5 architecture\n\
1328 -mpower6, -mpwr6 generate code for Power6 architecture\n\
1329 -mpower7, -mpwr7 generate code for Power7 architecture\n\
1330 -mcell generate code for Cell Broadband Engine architecture\n\
1331 -mcom generate code Power/PowerPC common instructions\n\
1332 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1333 fprintf (stream, _("\
1334 -maltivec generate code for AltiVec\n\
1335 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1336 -me300 generate code for PowerPC e300 family\n\
1337 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1338 -me500mc, generate code for Freescale e500mc core complex\n\
1339 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1340 -me5500, generate code for Freescale e5500 core complex\n\
1341 -me6500, generate code for Freescale e6500 core complex\n\
1342 -mspe generate code for Motorola SPE instructions\n\
1343 -mvle generate code for Freescale VLE instructions\n\
1344 -mtitan generate code for AppliedMicro Titan core complex\n\
1345 -mregnames Allow symbolic names for registers\n\
1346 -mno-regnames Do not allow symbolic names for registers\n"));
1348 fprintf (stream, _("\
1349 -mrelocatable support for GCC's -mrelocatble option\n\
1350 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1351 -memb set PPC_EMB bit in ELF flags\n\
1352 -mlittle, -mlittle-endian, -le\n\
1353 generate code for a little endian machine\n\
1354 -mbig, -mbig-endian, -be\n\
1355 generate code for a big endian machine\n\
1356 -msolaris generate code for Solaris\n\
1357 -mno-solaris do not generate code for Solaris\n\
1358 -K PIC set EF_PPC_RELOCATABLE_LIB in ELF flags\n\
1359 -V print assembler version number\n\
1360 -Qy, -Qn ignored\n"));
1362 fprintf (stream, _("\
1363 -nops=count when aligning, more than COUNT nops uses a branch\n"));
1366 /* Set ppc_cpu if it is not already set. */
1371 const char *default_os = TARGET_OS;
1372 const char *default_cpu = TARGET_CPU;
1374 if ((ppc_cpu & ~(ppc_cpu_t) PPC_OPCODE_ANY) == 0)
1377 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_64;
1378 else if (strncmp (default_os, "aix", 3) == 0
1379 && default_os[3] >= '4' && default_os[3] <= '9')
1380 ppc_cpu |= PPC_OPCODE_COMMON;
1381 else if (strncmp (default_os, "aix3", 4) == 0)
1382 ppc_cpu |= PPC_OPCODE_POWER;
1383 else if (strcmp (default_cpu, "rs6000") == 0)
1384 ppc_cpu |= PPC_OPCODE_POWER;
1385 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1386 ppc_cpu |= PPC_OPCODE_PPC;
1388 as_fatal (_("unknown default cpu = %s, os = %s"),
1389 default_cpu, default_os);
1393 /* Figure out the BFD architecture to use. This function and ppc_mach
1394 are called well before md_begin, when the output file is opened. */
1396 enum bfd_architecture
1399 const char *default_cpu = TARGET_CPU;
1402 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1403 return bfd_arch_powerpc;
1404 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1405 return bfd_arch_powerpc;
1406 if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1407 return bfd_arch_rs6000;
1408 if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1410 if (strcmp (default_cpu, "rs6000") == 0)
1411 return bfd_arch_rs6000;
1412 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1413 return bfd_arch_powerpc;
1416 as_fatal (_("neither Power nor PowerPC opcodes were selected."));
1417 return bfd_arch_unknown;
1424 return bfd_mach_ppc64;
1425 else if (ppc_arch () == bfd_arch_rs6000)
1426 return bfd_mach_rs6k;
1427 else if (ppc_cpu & PPC_OPCODE_TITAN)
1428 return bfd_mach_ppc_titan;
1429 else if (ppc_cpu & PPC_OPCODE_VLE)
1430 return bfd_mach_ppc_vle;
1432 return bfd_mach_ppc;
1436 ppc_target_format (void)
1440 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1442 return "xcoff-powermac";
1445 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1447 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1453 return (ppc_obj64 ? "elf64-powerpc-freebsd" : "elf32-powerpc-freebsd");
1454 # elif defined (TE_VXWORKS)
1455 return "elf32-powerpc-vxworks";
1457 return (target_big_endian
1458 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1459 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1464 /* Validate one entry in powerpc_opcodes[] or vle_opcodes[].
1465 Return TRUE if there's a problem, otherwise FALSE. */
1468 insn_validate (const struct powerpc_opcode *op)
1470 const unsigned char *o;
1471 unsigned long omask = op->mask;
1473 /* The mask had better not trim off opcode bits. */
1474 if ((op->opcode & omask) != op->opcode)
1476 as_bad (_("mask trims opcode bits for %s"), op->name);
1480 /* The operands must not overlap the opcode or each other. */
1481 for (o = op->operands; *o; ++o)
1483 if (*o >= num_powerpc_operands)
1485 as_bad (_("operand index error for %s"), op->name);
1490 const struct powerpc_operand *operand = &powerpc_operands[*o];
1491 if (operand->shift != PPC_OPSHIFT_INV)
1495 if (operand->shift >= 0)
1496 mask = operand->bitm << operand->shift;
1498 mask = operand->bitm >> -operand->shift;
1501 as_bad (_("operand %d overlap in %s"),
1502 (int) (o - op->operands), op->name);
1512 /* Insert opcodes and macros into hash tables. Called at startup and
1516 ppc_setup_opcodes (void)
1518 const struct powerpc_opcode *op;
1519 const struct powerpc_opcode *op_end;
1520 const struct powerpc_macro *macro;
1521 const struct powerpc_macro *macro_end;
1522 bfd_boolean bad_insn = FALSE;
1524 if (ppc_hash != NULL)
1525 hash_die (ppc_hash);
1526 if (ppc_macro_hash != NULL)
1527 hash_die (ppc_macro_hash);
1529 /* Insert the opcodes into a hash table. */
1530 ppc_hash = hash_new ();
1532 if (ENABLE_CHECKING)
1536 /* Check operand masks. Code here and in the disassembler assumes
1537 all the 1's in the mask are contiguous. */
1538 for (i = 0; i < num_powerpc_operands; ++i)
1540 unsigned long mask = powerpc_operands[i].bitm;
1541 unsigned long right_bit;
1544 right_bit = mask & -mask;
1546 right_bit = mask & -mask;
1547 if (mask != right_bit)
1549 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1552 for (j = i + 1; j < num_powerpc_operands; ++j)
1553 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1554 sizeof (powerpc_operands[0])) == 0)
1556 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1563 op_end = powerpc_opcodes + powerpc_num_opcodes;
1564 for (op = powerpc_opcodes; op < op_end; op++)
1566 if (ENABLE_CHECKING)
1568 if (op != powerpc_opcodes)
1570 int old_opcode = PPC_OP (op[-1].opcode);
1571 int new_opcode = PPC_OP (op[0].opcode);
1573 #ifdef PRINT_OPCODE_TABLE
1574 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1575 op->name, op - powerpc_opcodes, (unsigned int) new_opcode,
1576 (unsigned int) op->opcode, (unsigned int) op->mask,
1577 (unsigned long long) op->flags);
1580 /* The major opcodes had better be sorted. Code in the
1581 disassembler assumes the insns are sorted according to
1583 if (new_opcode < old_opcode)
1585 as_bad (_("major opcode is not sorted for %s"),
1590 bad_insn |= insn_validate (op);
1593 if ((ppc_cpu & op->flags) != 0
1594 && !(ppc_cpu & op->deprecated))
1598 retval = hash_insert (ppc_hash, op->name, (void *) op);
1601 as_bad (_("duplicate instruction %s"),
1608 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1609 for (op = powerpc_opcodes; op < op_end; op++)
1610 hash_insert (ppc_hash, op->name, (void *) op);
1612 op_end = vle_opcodes + vle_num_opcodes;
1613 for (op = vle_opcodes; op < op_end; op++)
1615 if (ENABLE_CHECKING)
1617 if (op != vle_opcodes)
1619 unsigned old_seg, new_seg;
1621 old_seg = VLE_OP (op[-1].opcode, op[-1].mask);
1622 old_seg = VLE_OP_TO_SEG (old_seg);
1623 new_seg = VLE_OP (op[0].opcode, op[0].mask);
1624 new_seg = VLE_OP_TO_SEG (new_seg);
1626 #ifdef PRINT_OPCODE_TABLE
1627 printf ("%-14s\t#%04d\tmajor op: 0x%x\top: 0x%x\tmask: 0x%x\tflags: 0x%llx\n",
1628 op->name, op - powerpc_opcodes, (unsigned int) new_opcode,
1629 (unsigned int) op->opcode, (unsigned int) op->mask,
1630 (unsigned long long) op->flags);
1632 /* The major opcodes had better be sorted. Code in the
1633 disassembler assumes the insns are sorted according to
1635 if (new_seg < old_seg)
1637 as_bad (_("major opcode is not sorted for %s"),
1643 bad_insn |= insn_validate (op);
1646 if ((ppc_cpu & op->flags) != 0
1647 && !(ppc_cpu & op->deprecated))
1651 retval = hash_insert (ppc_hash, op->name, (void *) op);
1654 as_bad (_("duplicate instruction %s"),
1661 if ((ppc_cpu & PPC_OPCODE_VLE) != 0)
1662 for (op = vle_opcodes; op < op_end; op++)
1663 hash_insert (ppc_hash, op->name, (void *) op);
1665 /* Insert the macros into a hash table. */
1666 ppc_macro_hash = hash_new ();
1668 macro_end = powerpc_macros + powerpc_num_macros;
1669 for (macro = powerpc_macros; macro < macro_end; macro++)
1671 if ((macro->flags & ppc_cpu) != 0 || (ppc_cpu & PPC_OPCODE_ANY) != 0)
1675 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1676 if (retval != (const char *) NULL)
1678 as_bad (_("duplicate macro %s"), macro->name);
1688 /* This function is called when the assembler starts up. It is called
1689 after the options have been parsed and the output file has been
1697 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1700 /* Set the ELF flags if desired. */
1701 if (ppc_flags && !msolaris)
1702 bfd_set_private_flags (stdoutput, ppc_flags);
1705 ppc_setup_opcodes ();
1707 /* Tell the main code what the endianness is if it is not overridden
1709 if (!set_target_endian)
1711 set_target_endian = 1;
1712 target_big_endian = PPC_BIG_ENDIAN;
1716 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1718 /* Create dummy symbols to serve as initial csects. This forces the
1719 text csects to precede the data csects. These symbols will not
1721 ppc_text_csects = symbol_make ("dummy\001");
1722 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1723 ppc_data_csects = symbol_make ("dummy\001");
1724 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1729 ppc_current_section = text_section;
1730 ppc_previous_section = 0;
1739 if (ppc_apuinfo_list == NULL)
1742 /* Ok, so write the section info out. We have this layout:
1746 0 8 length of "APUinfo\0"
1747 4 (n*4) number of APU's (4 bytes each)
1750 20 APU#1 first APU's info
1751 24 APU#2 second APU's info
1756 asection *seg = now_seg;
1757 subsegT subseg = now_subseg;
1758 asection *apuinfo_secp = (asection *) NULL;
1761 /* Create the .PPC.EMB.apuinfo section. */
1762 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1763 bfd_set_section_flags (stdoutput,
1765 SEC_HAS_CONTENTS | SEC_READONLY);
1768 md_number_to_chars (p, (valueT) 8, 4);
1771 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1774 md_number_to_chars (p, (valueT) 2, 4);
1777 strcpy (p, "APUinfo");
1779 for (i = 0; i < ppc_apuinfo_num; i++)
1782 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1785 frag_align (2, 0, 0);
1787 /* We probably can't restore the current segment, for there likely
1790 subseg_set (seg, subseg);
1795 /* Insert an operand value into an instruction. */
1797 static unsigned long
1798 ppc_insert_operand (unsigned long insn,
1799 const struct powerpc_operand *operand,
1805 long min, max, right;
1807 max = operand->bitm;
1811 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1813 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1814 max = (max >> 1) & -right;
1815 min = ~max & -right;
1818 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1821 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1830 /* Some people write constants with the sign extension done by
1831 hand but only up to 32 bits. This shouldn't really be valid,
1832 but, to permit this code to assemble on a 64-bit host, we
1833 sign extend the 32-bit value to 64 bits if so doing makes the
1836 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1837 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1838 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1839 val = val - 0x80000000 - 0x80000000;
1841 /* Similarly, people write expressions like ~(1<<15), and expect
1842 this to be OK for a 32-bit unsigned value. */
1844 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1845 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1846 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1847 val = val + 0x80000000 + 0x80000000;
1851 || (val & (right - 1)) != 0)
1852 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1855 if (operand->insert)
1860 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1861 if (errmsg != (const char *) NULL)
1862 as_bad_where (file, line, "%s", errmsg);
1864 else if (operand->shift >= 0)
1865 insn |= ((long) val & operand->bitm) << operand->shift;
1867 insn |= ((long) val & operand->bitm) >> -operand->shift;
1874 /* Parse @got, etc. and return the desired relocation. */
1875 static bfd_reloc_code_real_type
1876 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1880 unsigned int length : 8;
1881 unsigned int valid32 : 1;
1882 unsigned int valid64 : 1;
1891 const struct map_bfd *ptr;
1893 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1894 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1895 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1897 static const struct map_bfd mapping[] = {
1898 MAP ("l", BFD_RELOC_LO16),
1899 MAP ("h", BFD_RELOC_HI16),
1900 MAP ("ha", BFD_RELOC_HI16_S),
1901 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1902 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1903 MAP ("got", BFD_RELOC_16_GOTOFF),
1904 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1905 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1906 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1907 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1908 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1909 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1910 MAP ("copy", BFD_RELOC_PPC_COPY),
1911 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1912 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1913 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1914 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1915 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1916 MAP ("tls", BFD_RELOC_PPC_TLS),
1917 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1918 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1919 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1920 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1921 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1922 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1923 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1924 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1925 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1926 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1927 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1928 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1929 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1930 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1931 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1932 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1933 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1934 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1935 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1936 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1937 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1938 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1939 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1940 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1941 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1942 MAP32 ("fixup", BFD_RELOC_CTOR),
1943 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1944 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1945 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1946 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1947 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1948 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1949 MAP32 ("sdarel@l", BFD_RELOC_PPC_VLE_SDAREL_LO16A),
1950 MAP32 ("sdarel@h", BFD_RELOC_PPC_VLE_SDAREL_HI16A),
1951 MAP32 ("sdarel@ha", BFD_RELOC_PPC_VLE_SDAREL_HA16A),
1952 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1953 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1954 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1955 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1956 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1957 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1958 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1959 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1960 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1961 MAP32 ("sda21@l", BFD_RELOC_PPC_VLE_SDA21_LO),
1962 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1963 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1964 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1965 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1966 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1967 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1968 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1969 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1970 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1971 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1972 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1973 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1974 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1975 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1976 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1977 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1978 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1979 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1980 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1981 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1982 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1983 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1984 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1985 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1986 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1987 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1991 return BFD_RELOC_UNUSED;
1993 for (ch = *str, str2 = ident;
1994 (str2 < ident + sizeof (ident) - 1
1995 && (ISALNUM (ch) || ch == '@'));
1998 *str2++ = TOLOWER (ch);
2005 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
2006 if (ch == ptr->string[0]
2007 && len == ptr->length
2008 && memcmp (ident, ptr->string, ptr->length) == 0
2009 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
2011 int reloc = ptr->reloc;
2013 if (!ppc_obj64 && exp_p->X_add_number != 0)
2017 case BFD_RELOC_16_GOTOFF:
2018 case BFD_RELOC_LO16_GOTOFF:
2019 case BFD_RELOC_HI16_GOTOFF:
2020 case BFD_RELOC_HI16_S_GOTOFF:
2021 as_warn (_("identifier+constant@got means "
2022 "identifier@got+constant"));
2025 case BFD_RELOC_PPC_GOT_TLSGD16:
2026 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
2027 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
2028 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
2029 case BFD_RELOC_PPC_GOT_TLSLD16:
2030 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
2031 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
2032 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
2033 case BFD_RELOC_PPC_GOT_DTPREL16:
2034 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2035 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
2036 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
2037 case BFD_RELOC_PPC_GOT_TPREL16:
2038 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2039 case BFD_RELOC_PPC_GOT_TPREL16_HI:
2040 case BFD_RELOC_PPC_GOT_TPREL16_HA:
2041 as_bad (_("symbol+offset not supported for got tls"));
2046 /* Now check for identifier@suffix+constant. */
2047 if (*str == '-' || *str == '+')
2049 char *orig_line = input_line_pointer;
2050 expressionS new_exp;
2052 input_line_pointer = str;
2053 expression (&new_exp);
2054 if (new_exp.X_op == O_constant)
2056 exp_p->X_add_number += new_exp.X_add_number;
2057 str = input_line_pointer;
2060 if (&input_line_pointer != str_p)
2061 input_line_pointer = orig_line;
2065 if (reloc == (int) BFD_RELOC_PPC64_TOC
2066 && exp_p->X_op == O_symbol
2067 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
2069 /* Change the symbol so that the dummy .TOC. symbol can be
2070 omitted from the object file. */
2071 exp_p->X_add_symbol = &abs_symbol;
2074 return (bfd_reloc_code_real_type) reloc;
2077 return BFD_RELOC_UNUSED;
2080 /* Like normal .long/.short/.word, except support @got, etc.
2081 Clobbers input_line_pointer, checks end-of-line. */
2083 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
2086 bfd_reloc_code_real_type reloc;
2088 if (is_it_end_of_statement ())
2090 demand_empty_rest_of_line ();
2097 if (exp.X_op == O_symbol
2098 && *input_line_pointer == '@'
2099 && (reloc = ppc_elf_suffix (&input_line_pointer,
2100 &exp)) != BFD_RELOC_UNUSED)
2102 reloc_howto_type *reloc_howto;
2105 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
2106 size = bfd_get_reloc_size (reloc_howto);
2110 as_bad (_("%s relocations do not fit in %d bytes\n"),
2111 reloc_howto->name, nbytes);
2118 p = frag_more (nbytes);
2119 memset (p, 0, nbytes);
2121 if (target_big_endian)
2122 offset = nbytes - size;
2123 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
2128 emit_expr (&exp, (unsigned int) nbytes);
2130 while (*input_line_pointer++ == ',');
2132 /* Put terminator back into stream. */
2133 input_line_pointer--;
2134 demand_empty_rest_of_line ();
2137 /* Solaris pseduo op to change to the .rodata section. */
2139 ppc_elf_rdata (int xxx)
2141 char *save_line = input_line_pointer;
2142 static char section[] = ".rodata\n";
2144 /* Just pretend this is .section .rodata */
2145 input_line_pointer = section;
2146 obj_elf_section (xxx);
2148 input_line_pointer = save_line;
2151 /* Pseudo op to make file scope bss items. */
2153 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
2166 name = input_line_pointer;
2167 c = get_symbol_end ();
2169 /* just after name is now '\0'. */
2170 p = input_line_pointer;
2173 if (*input_line_pointer != ',')
2175 as_bad (_("expected comma after symbol-name: rest of line ignored."));
2176 ignore_rest_of_line ();
2180 input_line_pointer++; /* skip ',' */
2181 if ((size = get_absolute_expression ()) < 0)
2183 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2184 ignore_rest_of_line ();
2188 /* The third argument to .lcomm is the alignment. */
2189 if (*input_line_pointer != ',')
2193 ++input_line_pointer;
2194 align = get_absolute_expression ();
2197 as_warn (_("ignoring bad alignment"));
2203 symbolP = symbol_find_or_make (name);
2206 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2208 as_bad (_("ignoring attempt to re-define symbol `%s'."),
2209 S_GET_NAME (symbolP));
2210 ignore_rest_of_line ();
2214 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2216 as_bad (_("length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2217 S_GET_NAME (symbolP),
2218 (long) S_GET_VALUE (symbolP),
2221 ignore_rest_of_line ();
2227 old_subsec = now_subseg;
2230 /* Convert to a power of 2 alignment. */
2231 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2234 as_bad (_("common alignment not a power of 2"));
2235 ignore_rest_of_line ();
2242 record_alignment (bss_section, align2);
2243 subseg_set (bss_section, 0);
2245 frag_align (align2, 0, 0);
2246 if (S_GET_SEGMENT (symbolP) == bss_section)
2247 symbol_get_frag (symbolP)->fr_symbol = 0;
2248 symbol_set_frag (symbolP, frag_now);
2249 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2252 S_SET_SIZE (symbolP, size);
2253 S_SET_SEGMENT (symbolP, bss_section);
2254 subseg_set (old_sec, old_subsec);
2255 demand_empty_rest_of_line ();
2258 /* Validate any relocations emitted for -mrelocatable, possibly adding
2259 fixups for word relocations in writable segments, so we can adjust
2262 ppc_elf_validate_fix (fixS *fixp, segT seg)
2264 if (fixp->fx_done || fixp->fx_pcrel)
2273 case SHLIB_MRELOCATABLE:
2274 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2275 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2276 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2277 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2278 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2279 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2280 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2281 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2282 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2283 && (seg->flags & SEC_LOAD) != 0
2284 && strcmp (segment_name (seg), ".got2") != 0
2285 && strcmp (segment_name (seg), ".dtors") != 0
2286 && strcmp (segment_name (seg), ".ctors") != 0
2287 && strcmp (segment_name (seg), ".fixup") != 0
2288 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2289 && strcmp (segment_name (seg), ".eh_frame") != 0
2290 && strcmp (segment_name (seg), ".ex_shared") != 0)
2292 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2293 || fixp->fx_r_type != BFD_RELOC_CTOR)
2295 as_bad_where (fixp->fx_file, fixp->fx_line,
2296 _("relocation cannot be done when using -mrelocatable"));
2303 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2304 function descriptor sym if the corresponding code sym is used. */
2307 ppc_frob_file_before_adjust (void)
2315 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2322 name = S_GET_NAME (symp);
2326 if (! S_IS_WEAK (symp)
2327 || S_IS_DEFINED (symp))
2330 len = strlen (name) + 1;
2331 dotname = xmalloc (len + 1);
2333 memcpy (dotname + 1, name, len);
2334 dotsym = symbol_find_noref (dotname, 1);
2336 if (dotsym != NULL && (symbol_used_p (dotsym)
2337 || symbol_used_in_reloc_p (dotsym)))
2338 symbol_mark_used (symp);
2342 toc = bfd_get_section_by_name (stdoutput, ".toc");
2344 && toc_reloc_types != has_large_toc_reloc
2345 && bfd_section_size (stdoutput, toc) > 0x10000)
2346 as_warn (_("TOC section size exceeds 64k"));
2348 /* Don't emit .TOC. symbol. */
2349 symp = symbol_find (".TOC.");
2351 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2353 #endif /* OBJ_ELF */
2358 * Summary of parse_toc_entry.
2360 * in: Input_line_pointer points to the '[' in one of:
2362 * [toc] [tocv] [toc32] [toc64]
2364 * Anything else is an error of one kind or another.
2367 * return value: success or failure
2368 * toc_kind: kind of toc reference
2369 * input_line_pointer:
2370 * success: first char after the ']'
2371 * failure: unchanged
2375 * [toc] - rv == success, toc_kind = default_toc
2376 * [tocv] - rv == success, toc_kind = data_in_toc
2377 * [toc32] - rv == success, toc_kind = must_be_32
2378 * [toc64] - rv == success, toc_kind = must_be_64
2382 enum toc_size_qualifier
2384 default_toc, /* The toc cell constructed should be the system default size */
2385 data_in_toc, /* This is a direct reference to a toc cell */
2386 must_be_32, /* The toc cell constructed must be 32 bits wide */
2387 must_be_64 /* The toc cell constructed must be 64 bits wide */
2391 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2396 enum toc_size_qualifier t;
2398 /* Save the input_line_pointer. */
2399 start = input_line_pointer;
2401 /* Skip over the '[' , and whitespace. */
2402 ++input_line_pointer;
2405 /* Find the spelling of the operand. */
2406 toc_spec = input_line_pointer;
2407 c = get_symbol_end ();
2409 if (strcmp (toc_spec, "toc") == 0)
2413 else if (strcmp (toc_spec, "tocv") == 0)
2417 else if (strcmp (toc_spec, "toc32") == 0)
2421 else if (strcmp (toc_spec, "toc64") == 0)
2427 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2428 *input_line_pointer = c;
2429 input_line_pointer = start;
2433 /* Now find the ']'. */
2434 *input_line_pointer = c;
2436 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2437 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2441 as_bad (_("syntax error: expected `]', found `%c'"), c);
2442 input_line_pointer = start;
2453 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2455 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2459 /* Check we don't already exist. */
2460 for (i = 0; i < ppc_apuinfo_num; i++)
2461 if (ppc_apuinfo_list[i] == APUID (apu, version))
2464 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2466 if (ppc_apuinfo_num_alloc == 0)
2468 ppc_apuinfo_num_alloc = 4;
2469 ppc_apuinfo_list = (unsigned long *)
2470 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2474 ppc_apuinfo_num_alloc += 4;
2475 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2476 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2479 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2485 /* We need to keep a list of fixups. We can't simply generate them as
2486 we go, because that would require us to first create the frag, and
2487 that would screw up references to ``.''. */
2493 bfd_reloc_code_real_type reloc;
2496 #define MAX_INSN_FIXUPS (5)
2499 #define E_OR2I_INSN 0x7000C000
2500 #define E_AND2I_DOT_INSN 0x7000C800
2501 #define E_OR2IS_INSN 0x7000D000
2502 #define E_LIS_INSN 0x7000E000
2503 #define E_AND2IS_DOT_INSN 0x7000E800
2506 #define E_ADD2I_DOT_INSN 0x70008800
2507 #define E_ADD2IS_INSN 0x70009000
2508 #define E_CMP16I_INSN 0x70009800
2509 #define E_MULL2I_INSN 0x7000A000
2510 #define E_CMPL16I_INSN 0x7000A800
2511 #define E_CMPH16I_INSN 0x7000B000
2512 #define E_CMPHL16I_INSN 0x7000B800
2514 /* This routine is called for each instruction to be assembled. */
2517 md_assemble (char *str)
2520 const struct powerpc_opcode *opcode;
2522 const unsigned char *opindex_ptr;
2526 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2531 unsigned int insn_length;
2533 bfd_reloc_code_real_type reloc;
2536 /* Get the opcode. */
2537 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2542 /* Look up the opcode in the hash table. */
2543 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2544 if (opcode == (const struct powerpc_opcode *) NULL)
2546 const struct powerpc_macro *macro;
2548 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2549 if (macro == (const struct powerpc_macro *) NULL)
2550 as_bad (_("unrecognized opcode: `%s'"), str);
2552 ppc_macro (s, macro);
2557 insn = opcode->opcode;
2560 while (ISSPACE (*str))
2563 /* PowerPC operands are just expressions. The only real issue is
2564 that a few operand types are optional. All cases which might use
2565 an optional operand separate the operands only with commas (in some
2566 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2567 have optional operands). Most instructions with optional operands
2568 have only one. Those that have more than one optional operand can
2569 take either all their operands or none. So, before we start seriously
2570 parsing the operands, we check to see if we have optional operands,
2571 and if we do, we count the number of commas to see which operands
2572 have been omitted. */
2574 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2576 const struct powerpc_operand *operand;
2578 operand = &powerpc_operands[*opindex_ptr];
2579 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2581 unsigned int opcount;
2582 unsigned int num_operands_expected;
2584 /* There is an optional operand. Count the number of
2585 commas in the input line. */
2592 while ((s = strchr (s, ',')) != (char *) NULL)
2599 /* Compute the number of expected operands.
2600 Do not count fake operands. */
2601 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2602 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2603 ++ num_operands_expected;
2605 /* If there are fewer operands in the line then are called
2606 for by the instruction, we want to skip the optional
2608 if (opcount < num_operands_expected)
2615 /* Gather the operands. */
2619 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2621 const struct powerpc_operand *operand;
2627 if (next_opindex == 0)
2628 operand = &powerpc_operands[*opindex_ptr];
2631 operand = &powerpc_operands[next_opindex];
2636 /* If this is a fake operand, then we do not expect anything
2638 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2640 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2641 if (errmsg != (const char *) NULL)
2642 as_bad ("%s", errmsg);
2646 /* If this is an optional operand, and we are skipping it, just
2648 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2651 if (operand->insert)
2653 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2654 if (errmsg != (const char *) NULL)
2655 as_bad ("%s", errmsg);
2657 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2658 next_opindex = *opindex_ptr + 1;
2662 /* Gather the operand. */
2663 hold = input_line_pointer;
2664 input_line_pointer = str;
2667 if (*input_line_pointer == '[')
2669 /* We are expecting something like the second argument here:
2671 * lwz r4,[toc].GS.0.static_int(rtoc)
2672 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2673 * The argument following the `]' must be a symbol name, and the
2674 * register must be the toc register: 'rtoc' or '2'
2676 * The effect is to 0 as the displacement field
2677 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2678 * the appropriate variation) reloc against it based on the symbol.
2679 * The linker will build the toc, and insert the resolved toc offset.
2682 * o The size of the toc entry is currently assumed to be
2683 * 32 bits. This should not be assumed to be a hard coded
2685 * o In an effort to cope with a change from 32 to 64 bits,
2686 * there are also toc entries that are specified to be
2687 * either 32 or 64 bits:
2688 * lwz r4,[toc32].GS.0.static_int(rtoc)
2689 * lwz r4,[toc64].GS.0.static_int(rtoc)
2690 * These demand toc entries of the specified size, and the
2691 * instruction probably requires it.
2695 enum toc_size_qualifier toc_kind;
2696 bfd_reloc_code_real_type toc_reloc;
2698 /* Go parse off the [tocXX] part. */
2699 valid_toc = parse_toc_entry (&toc_kind);
2703 /* Note: message has already been issued.
2704 FIXME: what sort of recovery should we do?
2705 demand_rest_of_line (); return; ? */
2708 /* Now get the symbol following the ']'. */
2714 /* In this case, we may not have seen the symbol yet,
2715 since it is allowed to appear on a .extern or .globl
2716 or just be a label in the .data section. */
2717 toc_reloc = BFD_RELOC_PPC_TOC16;
2720 /* 1. The symbol must be defined and either in the toc
2721 section, or a global.
2722 2. The reloc generated must have the TOCDEFN flag set
2723 in upper bit mess of the reloc type.
2724 FIXME: It's a little confusing what the tocv
2725 qualifier can be used for. At the very least, I've
2726 seen three uses, only one of which I'm sure I can
2728 if (ex.X_op == O_symbol)
2730 gas_assert (ex.X_add_symbol != NULL);
2731 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2734 as_bad (_("[tocv] symbol is not a toc symbol"));
2738 toc_reloc = BFD_RELOC_PPC_TOC16;
2741 /* FIXME: these next two specifically specify 32/64 bit
2742 toc entries. We don't support them today. Is this
2743 the right way to say that? */
2744 toc_reloc = BFD_RELOC_UNUSED;
2745 as_bad (_("unimplemented toc32 expression modifier"));
2748 /* FIXME: see above. */
2749 toc_reloc = BFD_RELOC_UNUSED;
2750 as_bad (_("unimplemented toc64 expression modifier"));
2754 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2760 /* We need to generate a fixup for this expression. */
2761 if (fc >= MAX_INSN_FIXUPS)
2762 as_fatal (_("too many fixups"));
2764 fixups[fc].reloc = toc_reloc;
2765 fixups[fc].exp = ex;
2766 fixups[fc].opindex = *opindex_ptr;
2769 /* Ok. We've set up the fixup for the instruction. Now make it
2770 look like the constant 0 was found here. */
2772 ex.X_op = O_constant;
2773 ex.X_add_number = 0;
2774 ex.X_add_symbol = NULL;
2775 ex.X_op_symbol = NULL;
2782 && (((operand->flags & PPC_OPERAND_CR_BIT) != 0)
2783 || ((operand->flags & PPC_OPERAND_CR_REG) != 0)))
2784 || !register_name (&ex))
2786 char save_lex = lex_type['%'];
2788 if (((operand->flags & PPC_OPERAND_CR_REG) != 0)
2789 || (operand->flags & PPC_OPERAND_CR_BIT) != 0)
2792 lex_type['%'] |= LEX_BEGIN_NAME;
2796 lex_type['%'] = save_lex;
2800 str = input_line_pointer;
2801 input_line_pointer = hold;
2803 if (ex.X_op == O_illegal)
2804 as_bad (_("illegal operand"));
2805 else if (ex.X_op == O_absent)
2806 as_bad (_("missing operand"));
2807 else if (ex.X_op == O_register)
2809 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2810 ppc_cpu, (char *) NULL, 0);
2812 else if (ex.X_op == O_constant)
2815 /* Allow @HA, @L, @H on constants. */
2816 char *orig_str = str;
2818 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2825 case BFD_RELOC_LO16:
2826 /* X_unsigned is the default, so if the user has done
2827 something which cleared it, we always produce a
2829 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2830 ex.X_add_number &= 0xffff;
2832 ex.X_add_number = SEX16 (ex.X_add_number);
2835 case BFD_RELOC_HI16:
2836 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2837 ex.X_add_number = PPC_HI (ex.X_add_number);
2839 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2842 case BFD_RELOC_HI16_S:
2843 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2844 ex.X_add_number = PPC_HA (ex.X_add_number);
2846 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2849 case BFD_RELOC_PPC64_HIGHER:
2850 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2851 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2853 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2856 case BFD_RELOC_PPC64_HIGHER_S:
2857 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2858 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2860 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2863 case BFD_RELOC_PPC64_HIGHEST:
2864 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2865 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2867 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2870 case BFD_RELOC_PPC64_HIGHEST_S:
2871 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2872 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2874 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2877 #endif /* OBJ_ELF */
2878 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2879 ppc_cpu, (char *) NULL, 0);
2884 if (ex.X_op == O_symbol && str[0] == '(')
2886 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2887 if (sym_name[0] == '.')
2890 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2892 expressionS tls_exp;
2894 hold = input_line_pointer;
2895 input_line_pointer = str + 1;
2896 expression (&tls_exp);
2897 if (tls_exp.X_op == O_symbol)
2899 reloc = BFD_RELOC_UNUSED;
2900 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2902 reloc = BFD_RELOC_PPC_TLSGD;
2903 input_line_pointer += 7;
2905 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2907 reloc = BFD_RELOC_PPC_TLSLD;
2908 input_line_pointer += 7;
2910 if (reloc != BFD_RELOC_UNUSED)
2913 str = input_line_pointer;
2915 if (fc >= MAX_INSN_FIXUPS)
2916 as_fatal (_("too many fixups"));
2917 fixups[fc].exp = tls_exp;
2918 fixups[fc].opindex = *opindex_ptr;
2919 fixups[fc].reloc = reloc;
2923 input_line_pointer = hold;
2927 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2929 /* Some TLS tweaks. */
2935 case BFD_RELOC_PPC_TLS:
2936 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
2937 as_bad (_("@tls may not be used with \"%s\" operands"),
2939 else if (operand->shift != 11)
2940 as_bad (_("@tls may only be used in last operand"));
2942 insn = ppc_insert_operand (insn, operand,
2944 ppc_cpu, (char *) NULL, 0);
2947 /* We'll only use the 32 (or 64) bit form of these relocations
2948 in constants. Instructions get the 16 bit form. */
2949 case BFD_RELOC_PPC_DTPREL:
2950 reloc = BFD_RELOC_PPC_DTPREL16;
2952 case BFD_RELOC_PPC_TPREL:
2953 reloc = BFD_RELOC_PPC_TPREL16;
2957 /* If VLE-mode convert LO/HI/HA relocations. */
2958 if (opcode->flags & PPC_OPCODE_VLE)
2960 int tmp_insn = insn & opcode->mask;
2962 int use_d_reloc = (tmp_insn == E_OR2I_INSN
2963 || tmp_insn == E_AND2I_DOT_INSN
2964 || tmp_insn == E_OR2IS_INSN
2965 || tmp_insn == E_LIS_INSN
2966 || tmp_insn == E_AND2IS_DOT_INSN);
2969 int use_a_reloc = (tmp_insn == E_ADD2I_DOT_INSN
2970 || tmp_insn == E_ADD2IS_INSN
2971 || tmp_insn == E_CMP16I_INSN
2972 || tmp_insn == E_MULL2I_INSN
2973 || tmp_insn == E_CMPL16I_INSN
2974 || tmp_insn == E_CMPH16I_INSN
2975 || tmp_insn == E_CMPHL16I_INSN);
2982 case BFD_RELOC_PPC_EMB_SDA21:
2983 reloc = BFD_RELOC_PPC_VLE_SDA21;
2986 case BFD_RELOC_LO16:
2988 reloc = BFD_RELOC_PPC_VLE_LO16D;
2989 else if (use_a_reloc)
2990 reloc = BFD_RELOC_PPC_VLE_LO16A;
2993 case BFD_RELOC_HI16:
2995 reloc = BFD_RELOC_PPC_VLE_HI16D;
2996 else if (use_a_reloc)
2997 reloc = BFD_RELOC_PPC_VLE_HI16A;
3000 case BFD_RELOC_HI16_S:
3002 reloc = BFD_RELOC_PPC_VLE_HA16D;
3003 else if (use_a_reloc)
3004 reloc = BFD_RELOC_PPC_VLE_HA16A;
3007 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
3009 reloc = BFD_RELOC_PPC_VLE_SDAREL_LO16D;
3012 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
3014 reloc = BFD_RELOC_PPC_VLE_SDAREL_HI16D;
3017 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
3019 reloc = BFD_RELOC_PPC_VLE_SDAREL_HA16D;
3024 /* For the absolute forms of branches, convert the PC
3025 relative form back into the absolute. */
3026 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
3030 case BFD_RELOC_PPC_B26:
3031 reloc = BFD_RELOC_PPC_BA26;
3033 case BFD_RELOC_PPC_B16:
3034 reloc = BFD_RELOC_PPC_BA16;
3036 case BFD_RELOC_PPC_B16_BRTAKEN:
3037 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
3039 case BFD_RELOC_PPC_B16_BRNTAKEN:
3040 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
3049 case BFD_RELOC_PPC_TOC16:
3050 toc_reloc_types |= has_small_toc_reloc;
3052 case BFD_RELOC_PPC64_TOC16_LO:
3053 case BFD_RELOC_PPC64_TOC16_HI:
3054 case BFD_RELOC_PPC64_TOC16_HA:
3055 toc_reloc_types |= has_large_toc_reloc;
3062 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
3067 reloc = BFD_RELOC_PPC64_ADDR16_DS;
3069 case BFD_RELOC_LO16:
3070 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
3072 case BFD_RELOC_16_GOTOFF:
3073 reloc = BFD_RELOC_PPC64_GOT16_DS;
3075 case BFD_RELOC_LO16_GOTOFF:
3076 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
3078 case BFD_RELOC_LO16_PLTOFF:
3079 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
3081 case BFD_RELOC_16_BASEREL:
3082 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
3084 case BFD_RELOC_LO16_BASEREL:
3085 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
3087 case BFD_RELOC_PPC_TOC16:
3088 reloc = BFD_RELOC_PPC64_TOC16_DS;
3090 case BFD_RELOC_PPC64_TOC16_LO:
3091 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
3093 case BFD_RELOC_PPC64_PLTGOT16:
3094 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
3096 case BFD_RELOC_PPC64_PLTGOT16_LO:
3097 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
3099 case BFD_RELOC_PPC_DTPREL16:
3100 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
3102 case BFD_RELOC_PPC_DTPREL16_LO:
3103 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
3105 case BFD_RELOC_PPC_TPREL16:
3106 reloc = BFD_RELOC_PPC64_TPREL16_DS;
3108 case BFD_RELOC_PPC_TPREL16_LO:
3109 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
3111 case BFD_RELOC_PPC_GOT_DTPREL16:
3112 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
3113 case BFD_RELOC_PPC_GOT_TPREL16:
3114 case BFD_RELOC_PPC_GOT_TPREL16_LO:
3117 as_bad (_("unsupported relocation for DS offset field"));
3123 /* We need to generate a fixup for this expression. */
3124 if (fc >= MAX_INSN_FIXUPS)
3125 as_fatal (_("too many fixups"));
3126 fixups[fc].exp = ex;
3127 fixups[fc].opindex = *opindex_ptr;
3128 fixups[fc].reloc = reloc;
3134 /* We need to generate a fixup for this expression. */
3135 if (fc >= MAX_INSN_FIXUPS)
3136 as_fatal (_("too many fixups"));
3137 fixups[fc].exp = ex;
3138 fixups[fc].opindex = *opindex_ptr;
3139 fixups[fc].reloc = BFD_RELOC_UNUSED;
3142 #endif /* OBJ_ELF */
3148 /* If expecting more operands, then we want to see "),". */
3149 if (*str == endc && opindex_ptr[1] != 0)
3153 while (ISSPACE (*str));
3157 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
3165 /* The call to expression should have advanced str past any
3168 && (endc != ',' || *str != '\0'))
3171 as_bad (_("syntax error; end of line, expected `%c'"), endc);
3173 as_bad (_("syntax error; found `%c', expected `%c'"), *str, endc);
3181 while (ISSPACE (*str))
3185 as_bad (_("junk at end of line: `%s'"), str);
3188 /* Do we need/want an APUinfo section? */
3189 if ((ppc_cpu & (PPC_OPCODE_E500 | PPC_OPCODE_E500MC | PPC_OPCODE_VLE)) != 0)
3191 /* These are all version "1". */
3192 if (opcode->flags & PPC_OPCODE_SPE)
3193 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
3194 if (opcode->flags & PPC_OPCODE_ISEL)
3195 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
3196 if (opcode->flags & PPC_OPCODE_EFS)
3197 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
3198 if (opcode->flags & PPC_OPCODE_BRLOCK)
3199 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
3200 if (opcode->flags & PPC_OPCODE_PMR)
3201 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
3202 if (opcode->flags & PPC_OPCODE_CACHELCK)
3203 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
3204 if (opcode->flags & PPC_OPCODE_RFMCI)
3205 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
3206 if (opcode->flags & PPC_OPCODE_VLE)
3207 ppc_apuinfo_section_add (PPC_APUINFO_VLE, 1);
3211 /* Write out the instruction. */
3212 /* Differentiate between two and four byte insns. */
3213 if (ppc_mach () == bfd_mach_ppc_vle)
3215 if (PPC_OP_SE_VLE (insn))
3219 addr_mod = frag_now_fix () & 1;
3224 addr_mod = frag_now_fix () & 3;
3226 /* All instructions can start on a 2 byte boundary for VLE. */
3227 f = frag_more (insn_length);
3228 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
3230 if (ppc_mach() == bfd_mach_ppc_vle)
3231 as_bad (_("instruction address is not a multiple of 2"));
3233 as_bad (_("instruction address is not a multiple of 4"));
3235 frag_now->insn_addr = addr_mod;
3236 frag_now->has_code = 1;
3237 md_number_to_chars (f, insn, insn_length);
3240 dwarf2_emit_insn (insn_length);
3243 /* Create any fixups. At this point we do not use a
3244 bfd_reloc_code_real_type, but instead just use the
3245 BFD_RELOC_UNUSED plus the operand index. This lets us easily
3246 handle fixups for any operand type, although that is admittedly
3247 not a very exciting feature. We pick a BFD reloc type in
3249 for (i = 0; i < fc; i++)
3251 if (fixups[i].reloc != BFD_RELOC_UNUSED)
3253 reloc_howto_type *reloc_howto;
3258 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
3262 size = bfd_get_reloc_size (reloc_howto);
3263 offset = target_big_endian ? (4 - size) : 0;
3265 if (size < 1 || size > 4)
3268 fixP = fix_new_exp (frag_now,
3269 f - frag_now->fr_literal + offset,
3272 reloc_howto->pc_relative,
3275 /* Turn off complaints that the addend is too large for things like
3277 switch (fixups[i].reloc)
3279 case BFD_RELOC_16_GOTOFF:
3280 case BFD_RELOC_PPC_TOC16:
3281 case BFD_RELOC_LO16:
3282 case BFD_RELOC_HI16:
3283 case BFD_RELOC_HI16_S:
3284 case BFD_RELOC_PPC_VLE_LO16A:
3285 case BFD_RELOC_PPC_VLE_LO16D:
3286 case BFD_RELOC_PPC_VLE_HI16A:
3287 case BFD_RELOC_PPC_VLE_HI16D:
3288 case BFD_RELOC_PPC_VLE_HA16A:
3289 case BFD_RELOC_PPC_VLE_HA16D:
3291 case BFD_RELOC_PPC64_HIGHER:
3292 case BFD_RELOC_PPC64_HIGHER_S:
3293 case BFD_RELOC_PPC64_HIGHEST:
3294 case BFD_RELOC_PPC64_HIGHEST_S:
3296 fixP->fx_no_overflow = 1;
3304 const struct powerpc_operand *operand;
3306 operand = &powerpc_operands[fixups[i].opindex];
3307 fix_new_exp (frag_now,
3308 f - frag_now->fr_literal,
3311 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3312 ((bfd_reloc_code_real_type)
3313 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
3318 /* Handle a macro. Gather all the operands, transform them as
3319 described by the macro, and call md_assemble recursively. All the
3320 operands are separated by commas; we don't accept parentheses
3321 around operands here. */
3324 ppc_macro (char *str, const struct powerpc_macro *macro)
3335 /* Gather the users operands into the operands array. */
3340 if (count >= sizeof operands / sizeof operands[0])
3342 operands[count++] = s;
3343 s = strchr (s, ',');
3344 if (s == (char *) NULL)
3349 if (count != macro->operands)
3351 as_bad (_("wrong number of operands"));
3355 /* Work out how large the string must be (the size is unbounded
3356 because it includes user input). */
3358 format = macro->format;
3359 while (*format != '\0')
3368 arg = strtol (format + 1, &send, 10);
3369 know (send != format && arg < count);
3370 len += strlen (operands[arg]);
3375 /* Put the string together. */
3376 complete = s = (char *) alloca (len + 1);
3377 format = macro->format;
3378 while (*format != '\0')
3384 arg = strtol (format + 1, &send, 10);
3385 strcpy (s, operands[arg]);
3392 /* Assemble the constructed instruction. */
3393 md_assemble (complete);
3397 /* For ELF, add support for SHT_ORDERED. */
3400 ppc_section_type (char *str, size_t len)
3402 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3409 ppc_section_flags (flagword flags, bfd_vma attr ATTRIBUTE_UNUSED, int type)
3411 if (type == SHT_ORDERED)
3412 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3416 #endif /* OBJ_ELF */
3419 /* Pseudo-op handling. */
3421 /* The .byte pseudo-op. This is similar to the normal .byte
3422 pseudo-op, but it can also take a single ASCII string. */
3425 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3427 if (*input_line_pointer != '\"')
3433 /* Gather characters. A real double quote is doubled. Unusual
3434 characters are not permitted. */
3435 ++input_line_pointer;
3440 c = *input_line_pointer++;
3444 if (*input_line_pointer != '\"')
3446 ++input_line_pointer;
3449 FRAG_APPEND_1_CHAR (c);
3452 demand_empty_rest_of_line ();
3457 /* XCOFF specific pseudo-op handling. */
3459 /* This is set if we are creating a .stabx symbol, since we don't want
3460 to handle symbol suffixes for such symbols. */
3461 static bfd_boolean ppc_stab_symbol;
3463 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3464 symbols in the .bss segment as though they were local common
3465 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3466 aligns .comm and .lcomm to 4 bytes. */
3469 ppc_comm (int lcomm)
3471 asection *current_seg = now_seg;
3472 subsegT current_subseg = now_subseg;
3478 symbolS *lcomm_sym = NULL;
3482 name = input_line_pointer;
3483 endc = get_symbol_end ();
3484 end_name = input_line_pointer;
3487 if (*input_line_pointer != ',')
3489 as_bad (_("missing size"));
3490 ignore_rest_of_line ();
3493 ++input_line_pointer;
3495 size = get_absolute_expression ();
3498 as_bad (_("negative size"));
3499 ignore_rest_of_line ();
3505 /* The third argument to .comm is the alignment. */
3506 if (*input_line_pointer != ',')
3510 ++input_line_pointer;
3511 align = get_absolute_expression ();
3514 as_warn (_("ignoring bad alignment"));
3529 /* The third argument to .lcomm appears to be the real local
3530 common symbol to create. References to the symbol named in
3531 the first argument are turned into references to the third
3533 if (*input_line_pointer != ',')
3535 as_bad (_("missing real symbol name"));
3536 ignore_rest_of_line ();
3539 ++input_line_pointer;
3541 lcomm_name = input_line_pointer;
3542 lcomm_endc = get_symbol_end ();
3544 lcomm_sym = symbol_find_or_make (lcomm_name);
3546 *input_line_pointer = lcomm_endc;
3550 sym = symbol_find_or_make (name);
3553 if (S_IS_DEFINED (sym)
3554 || S_GET_VALUE (sym) != 0)
3556 as_bad (_("attempt to redefine symbol"));
3557 ignore_rest_of_line ();
3561 record_alignment (bss_section, align);
3564 || ! S_IS_DEFINED (lcomm_sym))
3573 S_SET_EXTERNAL (sym);
3577 symbol_get_tc (lcomm_sym)->output = 1;
3578 def_sym = lcomm_sym;
3582 subseg_set (bss_section, 1);
3583 frag_align (align, 0, 0);
3585 symbol_set_frag (def_sym, frag_now);
3586 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3587 def_size, (char *) NULL);
3589 S_SET_SEGMENT (def_sym, bss_section);
3590 symbol_get_tc (def_sym)->align = align;
3594 /* Align the size of lcomm_sym. */
3595 symbol_get_frag (lcomm_sym)->fr_offset =
3596 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3597 &~ ((1 << align) - 1));
3598 if (align > symbol_get_tc (lcomm_sym)->align)
3599 symbol_get_tc (lcomm_sym)->align = align;
3604 /* Make sym an offset from lcomm_sym. */
3605 S_SET_SEGMENT (sym, bss_section);
3606 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3607 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3608 symbol_get_frag (lcomm_sym)->fr_offset += size;
3611 subseg_set (current_seg, current_subseg);
3613 demand_empty_rest_of_line ();
3616 /* The .csect pseudo-op. This switches us into a different
3617 subsegment. The first argument is a symbol whose value is the
3618 start of the .csect. In COFF, csect symbols get special aux
3619 entries defined by the x_csect field of union internal_auxent. The
3620 optional second argument is the alignment (the default is 2). */
3623 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3630 name = input_line_pointer;
3631 endc = get_symbol_end ();
3633 sym = symbol_find_or_make (name);
3635 *input_line_pointer = endc;
3637 if (S_GET_NAME (sym)[0] == '\0')
3639 /* An unnamed csect is assumed to be [PR]. */
3640 symbol_get_tc (sym)->symbol_class = XMC_PR;
3644 if (*input_line_pointer == ',')
3646 ++input_line_pointer;
3647 align = get_absolute_expression ();
3650 ppc_change_csect (sym, align);
3652 demand_empty_rest_of_line ();
3655 /* Change to a different csect. */
3658 ppc_change_csect (symbolS *sym, offsetT align)
3660 if (S_IS_DEFINED (sym))
3661 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3671 /* This is a new csect. We need to look at the symbol class to
3672 figure out whether it should go in the text section or the
3676 switch (symbol_get_tc (sym)->symbol_class)
3686 S_SET_SEGMENT (sym, text_section);
3687 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3688 ++ppc_text_subsegment;
3689 list_ptr = &ppc_text_csects;
3699 if (ppc_toc_csect != NULL
3700 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3701 == ppc_data_subsegment))
3703 S_SET_SEGMENT (sym, data_section);
3704 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3705 ++ppc_data_subsegment;
3706 list_ptr = &ppc_data_csects;
3712 /* We set the obstack chunk size to a small value before
3713 changing subsegments, so that we don't use a lot of memory
3714 space for what may be a small section. */
3715 hold_chunksize = chunksize;
3718 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3719 symbol_get_tc (sym)->subseg);
3721 chunksize = hold_chunksize;
3724 ppc_after_toc_frag = frag_now;
3726 record_alignment (sec, align);
3728 frag_align_code (align, 0);
3730 frag_align (align, 0, 0);
3732 symbol_set_frag (sym, frag_now);
3733 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3735 symbol_get_tc (sym)->align = align;
3736 symbol_get_tc (sym)->output = 1;
3737 symbol_get_tc (sym)->within = sym;
3739 for (list = *list_ptr;
3740 symbol_get_tc (list)->next != (symbolS *) NULL;
3741 list = symbol_get_tc (list)->next)
3743 symbol_get_tc (list)->next = sym;
3745 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3746 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3750 ppc_current_csect = sym;
3754 ppc_change_debug_section (unsigned int idx, subsegT subseg)
3758 const struct xcoff_dwsect_name *dw = &xcoff_dwsect_names[idx];
3760 sec = subseg_new (dw->name, subseg);
3761 oldflags = bfd_get_section_flags (stdoutput, sec);
3762 if (oldflags == SEC_NO_FLAGS)
3764 /* Just created section. */
3765 gas_assert (dw_sections[idx].sect == NULL);
3767 bfd_set_section_flags (stdoutput, sec, SEC_DEBUGGING);
3768 bfd_set_section_alignment (stdoutput, sec, 0);
3769 dw_sections[idx].sect = sec;
3772 /* Not anymore in a csect. */
3773 ppc_current_csect = NULL;
3776 /* The .dwsect pseudo-op. Defines a DWARF section. Syntax is:
3777 .dwsect flag [, opt-label ]
3781 ppc_dwsect (int ignore ATTRIBUTE_UNUSED)
3785 const struct xcoff_dwsect_name *dw;
3786 struct dw_subsection *subseg;
3787 struct dw_section *dws;
3791 flag = get_absolute_expression ();
3793 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
3794 if (xcoff_dwsect_names[i].flag == flag)
3796 dw = &xcoff_dwsect_names[i];
3800 /* Parse opt-label. */
3801 if (*input_line_pointer == ',')
3806 ++input_line_pointer;
3808 label = input_line_pointer;
3809 c = get_symbol_end ();
3810 opt_label = symbol_find_or_make (label);
3811 *input_line_pointer = c;
3816 demand_empty_rest_of_line ();
3818 /* Return now in case of unknown subsection. */
3821 as_bad (_("no known dwarf XCOFF section for flag 0x%08x\n"),
3826 /* Find the subsection. */
3827 dws = &dw_sections[i];
3829 if (opt_label != NULL && S_IS_DEFINED (opt_label))
3831 /* Sanity check (note that in theory S_GET_SEGMENT mustn't be null). */
3832 if (dws->sect == NULL || S_GET_SEGMENT (opt_label) != dws->sect)
3834 as_bad (_("label %s was not defined in this dwarf section"),
3835 S_GET_NAME (opt_label));
3836 subseg = dws->anon_subseg;
3840 subseg = symbol_get_tc (opt_label)->u.dw;
3845 /* Switch to the subsection. */
3846 ppc_change_debug_section (i, subseg->subseg);
3850 /* Create a new dw subsection. */
3851 subseg = (struct dw_subsection *)
3852 xmalloc (sizeof (struct dw_subsection));
3854 if (opt_label == NULL)
3856 /* The anonymous one. */
3858 subseg->link = NULL;
3859 dws->anon_subseg = subseg;
3864 if (dws->list_subseg != NULL)
3865 subseg->subseg = dws->list_subseg->subseg + 1;
3869 subseg->link = dws->list_subseg;
3870 dws->list_subseg = subseg;
3871 symbol_get_tc (opt_label)->u.dw = subseg;
3874 ppc_change_debug_section (i, subseg->subseg);
3878 /* Add the length field. */
3879 expressionS *exp = &subseg->end_exp;
3882 if (opt_label != NULL)
3883 symbol_set_value_now (opt_label);
3885 /* Add the length field. Note that according to the AIX assembler
3886 manual, the size of the length field is 4 for powerpc32 but
3887 12 for powerpc64. */
3890 /* Write the 64bit marker. */
3891 md_number_to_chars (frag_more (4), -1, 4);
3894 exp->X_op = O_subtract;
3895 exp->X_op_symbol = symbol_temp_new_now ();
3896 exp->X_add_symbol = symbol_temp_make ();
3898 sz = ppc_obj64 ? 8 : 4;
3899 exp->X_add_number = -sz;
3900 emit_expr (exp, sz);
3905 /* This function handles the .text and .data pseudo-ops. These
3906 pseudo-ops aren't really used by XCOFF; we implement them for the
3907 convenience of people who aren't used to XCOFF. */
3910 ppc_section (int type)
3917 else if (type == 'd')
3922 sym = symbol_find_or_make (name);
3924 ppc_change_csect (sym, 2);
3926 demand_empty_rest_of_line ();
3929 /* This function handles the .section pseudo-op. This is mostly to
3930 give an error, since XCOFF only supports .text, .data and .bss, but
3931 we do permit the user to name the text or data section. */
3934 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3937 const char *real_name;
3941 user_name = input_line_pointer;
3942 c = get_symbol_end ();
3944 if (strcmp (user_name, ".text") == 0)
3945 real_name = ".text[PR]";
3946 else if (strcmp (user_name, ".data") == 0)
3947 real_name = ".data[RW]";
3950 as_bad (_("the XCOFF file format does not support arbitrary sections"));
3951 *input_line_pointer = c;
3952 ignore_rest_of_line ();
3956 *input_line_pointer = c;
3958 sym = symbol_find_or_make (real_name);
3960 ppc_change_csect (sym, 2);
3962 demand_empty_rest_of_line ();
3965 /* The .extern pseudo-op. We create an undefined symbol. */
3968 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3973 name = input_line_pointer;
3974 endc = get_symbol_end ();
3976 (void) symbol_find_or_make (name);
3978 *input_line_pointer = endc;
3980 demand_empty_rest_of_line ();
3983 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3986 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3992 name = input_line_pointer;
3993 endc = get_symbol_end ();
3995 sym = symbol_find_or_make (name);
3997 *input_line_pointer = endc;
3999 symbol_get_tc (sym)->output = 1;
4001 demand_empty_rest_of_line ();
4004 /* The .ref pseudo-op. It takes a list of symbol names and inserts R_REF
4005 relocations at the beginning of the current csect.
4007 (In principle, there's no reason why the relocations _have_ to be at
4008 the beginning. Anywhere in the csect would do. However, inserting
4009 at the beginning is what the native assmebler does, and it helps to
4010 deal with cases where the .ref statements follow the section contents.)
4012 ??? .refs don't work for empty .csects. However, the native assembler
4013 doesn't report an error in this case, and neither yet do we. */
4016 ppc_ref (int ignore ATTRIBUTE_UNUSED)
4021 if (ppc_current_csect == NULL)
4023 as_bad (_(".ref outside .csect"));
4024 ignore_rest_of_line ();
4030 name = input_line_pointer;
4031 c = get_symbol_end ();
4033 fix_at_start (symbol_get_frag (ppc_current_csect), 0,
4034 symbol_find_or_make (name), 0, FALSE, BFD_RELOC_NONE);
4036 *input_line_pointer = c;
4038 c = *input_line_pointer;
4041 input_line_pointer++;
4043 if (is_end_of_line[(unsigned char) *input_line_pointer])
4045 as_bad (_("missing symbol name"));
4046 ignore_rest_of_line ();
4053 demand_empty_rest_of_line ();
4056 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
4057 although I don't know why it bothers. */
4060 ppc_rename (int ignore ATTRIBUTE_UNUSED)
4067 name = input_line_pointer;
4068 endc = get_symbol_end ();
4070 sym = symbol_find_or_make (name);
4072 *input_line_pointer = endc;
4074 if (*input_line_pointer != ',')
4076 as_bad (_("missing rename string"));
4077 ignore_rest_of_line ();
4080 ++input_line_pointer;
4082 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
4084 demand_empty_rest_of_line ();
4087 /* The .stabx pseudo-op. This is similar to a normal .stabs
4088 pseudo-op, but slightly different. A sample is
4089 .stabx "main:F-1",.main,142,0
4090 The first argument is the symbol name to create. The second is the
4091 value, and the third is the storage class. The fourth seems to be
4092 always zero, and I am assuming it is the type. */
4095 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
4102 name = demand_copy_C_string (&len);
4104 if (*input_line_pointer != ',')
4106 as_bad (_("missing value"));
4109 ++input_line_pointer;
4111 ppc_stab_symbol = TRUE;
4112 sym = symbol_make (name);
4113 ppc_stab_symbol = FALSE;
4115 symbol_get_tc (sym)->real_name = name;
4117 (void) expression (&exp);
4124 as_bad (_("illegal .stabx expression; zero assumed"));
4125 exp.X_add_number = 0;
4128 S_SET_VALUE (sym, (valueT) exp.X_add_number);
4129 symbol_set_frag (sym, &zero_address_frag);
4133 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
4134 symbol_set_value_expression (sym, &exp);
4138 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
4139 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
4144 /* The value is some complex expression. This will probably
4145 fail at some later point, but this is probably the right
4146 thing to do here. */
4147 symbol_set_value_expression (sym, &exp);
4151 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4152 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4154 if (*input_line_pointer != ',')
4156 as_bad (_("missing class"));
4159 ++input_line_pointer;
4161 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
4163 if (*input_line_pointer != ',')
4165 as_bad (_("missing type"));
4168 ++input_line_pointer;
4170 S_SET_DATA_TYPE (sym, get_absolute_expression ());
4172 symbol_get_tc (sym)->output = 1;
4174 if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
4179 .stabx "z",arrays_,133,0
4182 .comm arrays_,13768,3
4184 resolve_symbol_value will copy the exp's "within" into sym's when the
4185 offset is 0. Since this seems to be corner case problem,
4186 only do the correction for storage class C_STSYM. A better solution
4187 would be to have the tc field updated in ppc_symbol_new_hook. */
4189 if (exp.X_op == O_symbol)
4191 if (ppc_current_block == NULL)
4192 as_bad (_(".stabx of storage class stsym must be within .bs/.es"));
4194 symbol_get_tc (sym)->within = ppc_current_block;
4195 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
4199 if (exp.X_op != O_symbol
4200 || ! S_IS_EXTERNAL (exp.X_add_symbol)
4201 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
4202 ppc_frob_label (sym);
4205 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4206 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
4207 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
4208 symbol_get_tc (ppc_current_csect)->within = sym;
4211 demand_empty_rest_of_line ();
4214 /* The .function pseudo-op. This takes several arguments. The first
4215 argument seems to be the external name of the symbol. The second
4216 argument seems to be the label for the start of the function. gcc
4217 uses the same name for both. I have no idea what the third and
4218 fourth arguments are meant to be. The optional fifth argument is
4219 an expression for the size of the function. In COFF this symbol
4220 gets an aux entry like that used for a csect. */
4223 ppc_function (int ignore ATTRIBUTE_UNUSED)
4231 name = input_line_pointer;
4232 endc = get_symbol_end ();
4234 /* Ignore any [PR] suffix. */
4235 name = ppc_canonicalize_symbol_name (name);
4236 s = strchr (name, '[');
4237 if (s != (char *) NULL
4238 && strcmp (s + 1, "PR]") == 0)
4241 ext_sym = symbol_find_or_make (name);
4243 *input_line_pointer = endc;
4245 if (*input_line_pointer != ',')
4247 as_bad (_("missing symbol name"));
4248 ignore_rest_of_line ();
4251 ++input_line_pointer;
4253 name = input_line_pointer;
4254 endc = get_symbol_end ();
4256 lab_sym = symbol_find_or_make (name);
4258 *input_line_pointer = endc;
4260 if (ext_sym != lab_sym)
4264 exp.X_op = O_symbol;
4265 exp.X_add_symbol = lab_sym;
4266 exp.X_op_symbol = NULL;
4267 exp.X_add_number = 0;
4269 symbol_set_value_expression (ext_sym, &exp);
4272 if (symbol_get_tc (ext_sym)->symbol_class == -1)
4273 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
4274 symbol_get_tc (ext_sym)->output = 1;
4276 if (*input_line_pointer == ',')
4280 /* Ignore the third argument. */
4281 ++input_line_pointer;
4283 if (*input_line_pointer == ',')
4285 /* Ignore the fourth argument. */
4286 ++input_line_pointer;
4288 if (*input_line_pointer == ',')
4290 /* The fifth argument is the function size. */
4291 ++input_line_pointer;
4292 symbol_get_tc (ext_sym)->u.size = symbol_new
4293 ("L0\001", absolute_section,(valueT) 0, &zero_address_frag);
4294 pseudo_set (symbol_get_tc (ext_sym)->u.size);
4299 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4300 SF_SET_FUNCTION (ext_sym);
4301 SF_SET_PROCESS (ext_sym);
4302 coff_add_linesym (ext_sym);
4304 demand_empty_rest_of_line ();
4307 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
4308 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
4309 with the correct line number */
4311 static symbolS *saved_bi_sym = 0;
4314 ppc_bf (int ignore ATTRIBUTE_UNUSED)
4318 sym = symbol_make (".bf");
4319 S_SET_SEGMENT (sym, text_section);
4320 symbol_set_frag (sym, frag_now);
4321 S_SET_VALUE (sym, frag_now_fix ());
4322 S_SET_STORAGE_CLASS (sym, C_FCN);
4324 coff_line_base = get_absolute_expression ();
4326 S_SET_NUMBER_AUXILIARY (sym, 1);
4327 SA_SET_SYM_LNNO (sym, coff_line_base);
4329 /* Line number for bi. */
4332 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
4337 symbol_get_tc (sym)->output = 1;
4339 ppc_frob_label (sym);
4341 demand_empty_rest_of_line ();
4344 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
4345 ".ef", except that the line number is absolute, not relative to the
4346 most recent ".bf" symbol. */
4349 ppc_ef (int ignore ATTRIBUTE_UNUSED)
4353 sym = symbol_make (".ef");
4354 S_SET_SEGMENT (sym, text_section);
4355 symbol_set_frag (sym, frag_now);
4356 S_SET_VALUE (sym, frag_now_fix ());
4357 S_SET_STORAGE_CLASS (sym, C_FCN);
4358 S_SET_NUMBER_AUXILIARY (sym, 1);
4359 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4360 symbol_get_tc (sym)->output = 1;
4362 ppc_frob_label (sym);
4364 demand_empty_rest_of_line ();
4367 /* The .bi and .ei pseudo-ops. These take a string argument and
4368 generates a C_BINCL or C_EINCL symbol, which goes at the start of
4369 the symbol list. The value of .bi will be know when the next .bf
4375 static symbolS *last_biei;
4382 name = demand_copy_C_string (&len);
4384 /* The value of these symbols is actually file offset. Here we set
4385 the value to the index into the line number entries. In
4386 ppc_frob_symbols we set the fix_line field, which will cause BFD
4387 to do the right thing. */
4389 sym = symbol_make (name);
4390 /* obj-coff.c currently only handles line numbers correctly in the
4392 S_SET_SEGMENT (sym, text_section);
4393 S_SET_VALUE (sym, coff_n_line_nos);
4394 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4396 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
4397 symbol_get_tc (sym)->output = 1;
4405 for (look = last_biei ? last_biei : symbol_rootP;
4406 (look != (symbolS *) NULL
4407 && (S_GET_STORAGE_CLASS (look) == C_FILE
4408 || S_GET_STORAGE_CLASS (look) == C_BINCL
4409 || S_GET_STORAGE_CLASS (look) == C_EINCL));
4410 look = symbol_next (look))
4412 if (look != (symbolS *) NULL)
4414 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4415 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
4419 demand_empty_rest_of_line ();
4422 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
4423 There is one argument, which is a csect symbol. The value of the
4424 .bs symbol is the index of this csect symbol. */
4427 ppc_bs (int ignore ATTRIBUTE_UNUSED)
4434 if (ppc_current_block != NULL)
4435 as_bad (_("nested .bs blocks"));
4437 name = input_line_pointer;
4438 endc = get_symbol_end ();
4440 csect = symbol_find_or_make (name);
4442 *input_line_pointer = endc;
4444 sym = symbol_make (".bs");
4445 S_SET_SEGMENT (sym, now_seg);
4446 S_SET_STORAGE_CLASS (sym, C_BSTAT);
4447 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4448 symbol_get_tc (sym)->output = 1;
4450 symbol_get_tc (sym)->within = csect;
4452 ppc_frob_label (sym);
4454 ppc_current_block = sym;
4456 demand_empty_rest_of_line ();
4459 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
4462 ppc_es (int ignore ATTRIBUTE_UNUSED)
4466 if (ppc_current_block == NULL)
4467 as_bad (_(".es without preceding .bs"));
4469 sym = symbol_make (".es");
4470 S_SET_SEGMENT (sym, now_seg);
4471 S_SET_STORAGE_CLASS (sym, C_ESTAT);
4472 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4473 symbol_get_tc (sym)->output = 1;
4475 ppc_frob_label (sym);
4477 ppc_current_block = NULL;
4479 demand_empty_rest_of_line ();
4482 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
4486 ppc_bb (int ignore ATTRIBUTE_UNUSED)
4490 sym = symbol_make (".bb");
4491 S_SET_SEGMENT (sym, text_section);
4492 symbol_set_frag (sym, frag_now);
4493 S_SET_VALUE (sym, frag_now_fix ());
4494 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4496 S_SET_NUMBER_AUXILIARY (sym, 1);
4497 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4499 symbol_get_tc (sym)->output = 1;
4501 SF_SET_PROCESS (sym);
4503 ppc_frob_label (sym);
4505 demand_empty_rest_of_line ();
4508 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4512 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4516 sym = symbol_make (".eb");
4517 S_SET_SEGMENT (sym, text_section);
4518 symbol_set_frag (sym, frag_now);
4519 S_SET_VALUE (sym, frag_now_fix ());
4520 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4521 S_SET_NUMBER_AUXILIARY (sym, 1);
4522 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4523 symbol_get_tc (sym)->output = 1;
4525 SF_SET_PROCESS (sym);
4527 ppc_frob_label (sym);
4529 demand_empty_rest_of_line ();
4532 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4536 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4542 name = demand_copy_C_string (&len);
4543 sym = symbol_make (name);
4544 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4545 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4546 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4547 S_SET_VALUE (sym, 0);
4548 symbol_get_tc (sym)->output = 1;
4550 ppc_frob_label (sym);
4552 demand_empty_rest_of_line ();
4555 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4558 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4562 sym = symbol_make (".ec");
4563 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4564 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4565 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4566 S_SET_VALUE (sym, 0);
4567 symbol_get_tc (sym)->output = 1;
4569 ppc_frob_label (sym);
4571 demand_empty_rest_of_line ();
4574 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4577 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4579 if (ppc_toc_csect != (symbolS *) NULL)
4580 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4587 subseg = ppc_data_subsegment;
4588 ++ppc_data_subsegment;
4590 subseg_new (segment_name (data_section), subseg);
4591 ppc_toc_frag = frag_now;
4593 sym = symbol_find_or_make ("TOC[TC0]");
4594 symbol_set_frag (sym, frag_now);
4595 S_SET_SEGMENT (sym, data_section);
4596 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4597 symbol_get_tc (sym)->subseg = subseg;
4598 symbol_get_tc (sym)->output = 1;
4599 symbol_get_tc (sym)->within = sym;
4601 ppc_toc_csect = sym;
4603 for (list = ppc_data_csects;
4604 symbol_get_tc (list)->next != (symbolS *) NULL;
4605 list = symbol_get_tc (list)->next)
4607 symbol_get_tc (list)->next = sym;
4609 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4610 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4614 ppc_current_csect = ppc_toc_csect;
4616 demand_empty_rest_of_line ();
4619 /* The AIX assembler automatically aligns the operands of a .long or
4620 .short pseudo-op, and we want to be compatible. */
4623 ppc_xcoff_cons (int log_size)
4625 frag_align (log_size, 0, 0);
4626 record_alignment (now_seg, log_size);
4627 cons (1 << log_size);
4631 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4636 (void) expression (&exp);
4638 if (exp.X_op != O_constant)
4640 as_bad (_("non-constant byte count"));
4644 byte_count = exp.X_add_number;
4646 if (*input_line_pointer != ',')
4648 as_bad (_("missing value"));
4652 ++input_line_pointer;
4657 ppc_xcoff_end (void)
4661 for (i = 0; i < XCOFF_DWSECT_NBR_NAMES; i++)
4663 struct dw_section *dws = &dw_sections[i];
4664 struct dw_subsection *dwss;
4666 if (dws->anon_subseg)
4668 dwss = dws->anon_subseg;
4669 dwss->link = dws->list_subseg;
4672 dwss = dws->list_subseg;
4674 for (; dwss != NULL; dwss = dwss->link)
4675 if (dwss->end_exp.X_add_symbol != NULL)
4677 subseg_set (dws->sect, dwss->subseg);
4678 symbol_set_value_now (dwss->end_exp.X_add_symbol);
4683 #endif /* OBJ_XCOFF */
4684 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4686 /* The .tc pseudo-op. This is used when generating either XCOFF or
4687 ELF. This takes two or more arguments.
4689 When generating XCOFF output, the first argument is the name to
4690 give to this location in the toc; this will be a symbol with class
4691 TC. The rest of the arguments are N-byte values to actually put at
4692 this location in the TOC; often there is just one more argument, a
4693 relocatable symbol reference. The size of the value to store
4694 depends on target word size. A 32-bit target uses 4-byte values, a
4695 64-bit target uses 8-byte values.
4697 When not generating XCOFF output, the arguments are the same, but
4698 the first argument is simply ignored. */
4701 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4705 /* Define the TOC symbol name. */
4711 if (ppc_toc_csect == (symbolS *) NULL
4712 || ppc_toc_csect != ppc_current_csect)
4714 as_bad (_(".tc not in .toc section"));
4715 ignore_rest_of_line ();
4719 name = input_line_pointer;
4720 endc = get_symbol_end ();
4722 sym = symbol_find_or_make (name);
4724 *input_line_pointer = endc;
4726 if (S_IS_DEFINED (sym))
4730 label = symbol_get_tc (ppc_current_csect)->within;
4731 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4733 as_bad (_(".tc with no label"));
4734 ignore_rest_of_line ();
4738 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4739 symbol_set_frag (label, symbol_get_frag (sym));
4740 S_SET_VALUE (label, S_GET_VALUE (sym));
4742 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4743 ++input_line_pointer;
4748 S_SET_SEGMENT (sym, now_seg);
4749 symbol_set_frag (sym, frag_now);
4750 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4751 symbol_get_tc (sym)->symbol_class = XMC_TC;
4752 symbol_get_tc (sym)->output = 1;
4754 ppc_frob_label (sym);
4757 #endif /* OBJ_XCOFF */
4761 /* Skip the TOC symbol name. */
4762 while (is_part_of_name (*input_line_pointer)
4763 || *input_line_pointer == ' '
4764 || *input_line_pointer == '['
4765 || *input_line_pointer == ']'
4766 || *input_line_pointer == '{'
4767 || *input_line_pointer == '}')
4768 ++input_line_pointer;
4770 /* Align to a four/eight byte boundary. */
4771 align = ppc_obj64 ? 3 : 2;
4772 frag_align (align, 0, 0);
4773 record_alignment (now_seg, align);
4774 #endif /* OBJ_ELF */
4776 if (*input_line_pointer != ',')
4777 demand_empty_rest_of_line ();
4780 ++input_line_pointer;
4781 cons (ppc_obj64 ? 8 : 4);
4785 /* Pseudo-op .machine. */
4788 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4791 #define MAX_HISTORY 100
4792 static ppc_cpu_t *cpu_history;
4793 static int curr_hist;
4797 if (*input_line_pointer == '"')
4800 cpu_string = demand_copy_C_string (&len);
4805 cpu_string = input_line_pointer;
4806 c = get_symbol_end ();
4807 cpu_string = xstrdup (cpu_string);
4808 *input_line_pointer = c;
4811 if (cpu_string != NULL)
4813 ppc_cpu_t old_cpu = ppc_cpu;
4817 for (p = cpu_string; *p != 0; p++)
4820 if (strcmp (cpu_string, "push") == 0)
4822 if (cpu_history == NULL)
4823 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4825 if (curr_hist >= MAX_HISTORY)
4826 as_bad (_(".machine stack overflow"));
4828 cpu_history[curr_hist++] = ppc_cpu;
4830 else if (strcmp (cpu_string, "pop") == 0)
4833 as_bad (_(".machine stack underflow"));
4835 ppc_cpu = cpu_history[--curr_hist];
4837 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, cpu_string)) != 0)
4840 as_bad (_("invalid machine `%s'"), cpu_string);
4842 if (ppc_cpu != old_cpu)
4843 ppc_setup_opcodes ();
4846 demand_empty_rest_of_line ();
4849 /* See whether a symbol is in the TOC section. */
4852 ppc_is_toc_sym (symbolS *sym)
4855 return symbol_get_tc (sym)->symbol_class == XMC_TC;
4858 const char *sname = segment_name (S_GET_SEGMENT (sym));
4860 return strcmp (sname, ".toc") == 0;
4862 return strcmp (sname, ".got") == 0;
4865 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4869 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4871 /* Set the current section. */
4873 ppc_set_current_section (segT new)
4875 ppc_previous_section = ppc_current_section;
4876 ppc_current_section = new;
4879 /* pseudo-op: .previous
4880 behaviour: toggles the current section with the previous section.
4882 warnings: "No previous section" */
4885 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4889 if (ppc_previous_section == NULL)
4891 as_warn (_("no previous section to return to, ignored."));
4895 subseg_set (ppc_previous_section, 0);
4897 ppc_set_current_section (ppc_previous_section);
4900 /* pseudo-op: .pdata
4901 behaviour: predefined read only data section
4905 initial: .section .pdata "adr3"
4906 a - don't know -- maybe a misprint
4907 d - initialized data
4909 3 - double word aligned (that would be 4 byte boundary)
4912 Tag index tables (also known as the function table) for exception
4913 handling, debugging, etc. */
4916 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4918 if (pdata_section == 0)
4920 pdata_section = subseg_new (".pdata", 0);
4922 bfd_set_section_flags (stdoutput, pdata_section,
4923 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4924 | SEC_READONLY | SEC_DATA ));
4926 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4930 pdata_section = subseg_new (".pdata", 0);
4932 ppc_set_current_section (pdata_section);
4935 /* pseudo-op: .ydata
4936 behaviour: predefined read only data section
4940 initial: .section .ydata "drw3"
4941 a - don't know -- maybe a misprint
4942 d - initialized data
4944 3 - double word aligned (that would be 4 byte boundary)
4946 Tag tables (also known as the scope table) for exception handling,
4950 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4952 if (ydata_section == 0)
4954 ydata_section = subseg_new (".ydata", 0);
4955 bfd_set_section_flags (stdoutput, ydata_section,
4956 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4957 | SEC_READONLY | SEC_DATA ));
4959 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4963 ydata_section = subseg_new (".ydata", 0);
4965 ppc_set_current_section (ydata_section);
4968 /* pseudo-op: .reldata
4969 behaviour: predefined read write data section
4970 double word aligned (4-byte)
4971 FIXME: relocation is applied to it
4972 FIXME: what's the difference between this and .data?
4975 initial: .section .reldata "drw3"
4976 d - initialized data
4979 3 - double word aligned (that would be 8 byte boundary)
4982 Like .data, but intended to hold data subject to relocation, such as
4983 function descriptors, etc. */
4986 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4988 if (reldata_section == 0)
4990 reldata_section = subseg_new (".reldata", 0);
4992 bfd_set_section_flags (stdoutput, reldata_section,
4993 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4996 bfd_set_section_alignment (stdoutput, reldata_section, 2);
5000 reldata_section = subseg_new (".reldata", 0);
5002 ppc_set_current_section (reldata_section);
5005 /* pseudo-op: .rdata
5006 behaviour: predefined read only data section
5010 initial: .section .rdata "dr3"
5011 d - initialized data
5013 3 - double word aligned (that would be 4 byte boundary) */
5016 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
5018 if (rdata_section == 0)
5020 rdata_section = subseg_new (".rdata", 0);
5021 bfd_set_section_flags (stdoutput, rdata_section,
5022 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5023 | SEC_READONLY | SEC_DATA ));
5025 bfd_set_section_alignment (stdoutput, rdata_section, 2);
5029 rdata_section = subseg_new (".rdata", 0);
5031 ppc_set_current_section (rdata_section);
5034 /* pseudo-op: .ualong
5035 behaviour: much like .int, with the exception that no alignment is
5037 FIXME: test the alignment statement
5042 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
5048 /* pseudo-op: .znop <symbol name>
5049 behaviour: Issue a nop instruction
5050 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
5051 the supplied symbol name.
5053 warnings: Missing symbol name */
5056 ppc_znop (int ignore ATTRIBUTE_UNUSED)
5059 const struct powerpc_opcode *opcode;
5070 /* Strip out the symbol name. */
5071 symbol_name = input_line_pointer;
5072 c = get_symbol_end ();
5074 name = xmalloc (input_line_pointer - symbol_name + 1);
5075 strcpy (name, symbol_name);
5077 sym = symbol_find_or_make (name);
5079 *input_line_pointer = c;
5083 /* Look up the opcode in the hash table. */
5084 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
5086 /* Stick in the nop. */
5087 insn = opcode->opcode;
5089 /* Write out the instruction. */
5091 md_number_to_chars (f, insn, 4);
5093 f - frag_now->fr_literal,
5098 BFD_RELOC_16_GOT_PCREL);
5108 ppc_pe_comm (int lcomm)
5117 name = input_line_pointer;
5118 c = get_symbol_end ();
5120 /* just after name is now '\0'. */
5121 p = input_line_pointer;
5124 if (*input_line_pointer != ',')
5126 as_bad (_("expected comma after symbol-name: rest of line ignored."));
5127 ignore_rest_of_line ();
5131 input_line_pointer++; /* skip ',' */
5132 if ((temp = get_absolute_expression ()) < 0)
5134 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
5135 ignore_rest_of_line ();
5141 /* The third argument to .comm is the alignment. */
5142 if (*input_line_pointer != ',')
5146 ++input_line_pointer;
5147 align = get_absolute_expression ();
5150 as_warn (_("ignoring bad alignment"));
5157 symbolP = symbol_find_or_make (name);
5160 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
5162 as_bad (_("ignoring attempt to re-define symbol `%s'."),
5163 S_GET_NAME (symbolP));
5164 ignore_rest_of_line ();
5168 if (S_GET_VALUE (symbolP))
5170 if (S_GET_VALUE (symbolP) != (valueT) temp)
5171 as_bad (_("length of .comm \"%s\" is already %ld. Not changed to %ld."),
5172 S_GET_NAME (symbolP),
5173 (long) S_GET_VALUE (symbolP),
5178 S_SET_VALUE (symbolP, (valueT) temp);
5179 S_SET_EXTERNAL (symbolP);
5180 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
5183 demand_empty_rest_of_line ();
5187 * implement the .section pseudo op:
5188 * .section name {, "flags"}
5190 * | +--- optional flags: 'b' for bss
5192 * +-- section name 'l' for lib
5196 * 'd' (apparently m88k for data)
5198 * But if the argument is not a quoted string, treat it as a
5199 * subsegment number.
5201 * FIXME: this is a copy of the section processing from obj-coff.c, with
5202 * additions/changes for the moto-pas assembler support. There are three
5205 * FIXME: I just noticed this. This doesn't work at all really. It it
5206 * setting bits that bfd probably neither understands or uses. The
5207 * correct approach (?) will have to incorporate extra fields attached
5208 * to the section to hold the system specific stuff. (krk)
5211 * 'a' - unknown - referred to in documentation, but no definition supplied
5212 * 'c' - section has code
5213 * 'd' - section has initialized data
5214 * 'u' - section has uninitialized data
5215 * 'i' - section contains directives (info)
5216 * 'n' - section can be discarded
5217 * 'R' - remove section at link time
5219 * Section Protection:
5220 * 'r' - section is readable
5221 * 'w' - section is writeable
5222 * 'x' - section is executable
5223 * 's' - section is sharable
5225 * Section Alignment:
5226 * '0' - align to byte boundary
5227 * '1' - align to halfword undary
5228 * '2' - align to word boundary
5229 * '3' - align to doubleword boundary
5230 * '4' - align to quadword boundary
5231 * '5' - align to 32 byte boundary
5232 * '6' - align to 64 byte boundary
5237 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
5239 /* Strip out the section name. */
5248 section_name = input_line_pointer;
5249 c = get_symbol_end ();
5251 name = xmalloc (input_line_pointer - section_name + 1);
5252 strcpy (name, section_name);
5254 *input_line_pointer = c;
5259 flags = SEC_NO_FLAGS;
5261 if (strcmp (name, ".idata$2") == 0)
5265 else if (strcmp (name, ".idata$3") == 0)
5269 else if (strcmp (name, ".idata$4") == 0)
5273 else if (strcmp (name, ".idata$5") == 0)
5277 else if (strcmp (name, ".idata$6") == 0)
5282 /* Default alignment to 16 byte boundary. */
5285 if (*input_line_pointer == ',')
5287 ++input_line_pointer;
5289 if (*input_line_pointer != '"')
5290 exp = get_absolute_expression ();
5293 ++input_line_pointer;
5294 while (*input_line_pointer != '"'
5295 && ! is_end_of_line[(unsigned char) *input_line_pointer])
5297 switch (*input_line_pointer)
5299 /* Section Contents */
5300 case 'a': /* unknown */
5301 as_bad (_("unsupported section attribute -- 'a'"));
5303 case 'c': /* code section */
5306 case 'd': /* section has initialized data */
5309 case 'u': /* section has uninitialized data */
5310 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
5314 case 'i': /* section contains directives (info) */
5315 /* FIXME: This is IMAGE_SCN_LNK_INFO
5317 flags |= SEC_HAS_CONTENTS;
5319 case 'n': /* section can be discarded */
5322 case 'R': /* Remove section at link time */
5323 flags |= SEC_NEVER_LOAD;
5325 #if IFLICT_BRAIN_DAMAGE
5326 /* Section Protection */
5327 case 'r': /* section is readable */
5328 flags |= IMAGE_SCN_MEM_READ;
5330 case 'w': /* section is writeable */
5331 flags |= IMAGE_SCN_MEM_WRITE;
5333 case 'x': /* section is executable */
5334 flags |= IMAGE_SCN_MEM_EXECUTE;
5336 case 's': /* section is sharable */
5337 flags |= IMAGE_SCN_MEM_SHARED;
5340 /* Section Alignment */
5341 case '0': /* align to byte boundary */
5342 flags |= IMAGE_SCN_ALIGN_1BYTES;
5345 case '1': /* align to halfword boundary */
5346 flags |= IMAGE_SCN_ALIGN_2BYTES;
5349 case '2': /* align to word boundary */
5350 flags |= IMAGE_SCN_ALIGN_4BYTES;
5353 case '3': /* align to doubleword boundary */
5354 flags |= IMAGE_SCN_ALIGN_8BYTES;
5357 case '4': /* align to quadword boundary */
5358 flags |= IMAGE_SCN_ALIGN_16BYTES;
5361 case '5': /* align to 32 byte boundary */
5362 flags |= IMAGE_SCN_ALIGN_32BYTES;
5365 case '6': /* align to 64 byte boundary */
5366 flags |= IMAGE_SCN_ALIGN_64BYTES;
5371 as_bad (_("unknown section attribute '%c'"),
5372 *input_line_pointer);
5375 ++input_line_pointer;
5377 if (*input_line_pointer == '"')
5378 ++input_line_pointer;
5382 sec = subseg_new (name, (subsegT) exp);
5384 ppc_set_current_section (sec);
5386 if (flags != SEC_NO_FLAGS)
5388 if (! bfd_set_section_flags (stdoutput, sec, flags))
5389 as_bad (_("error setting flags for \"%s\": %s"),
5390 bfd_section_name (stdoutput, sec),
5391 bfd_errmsg (bfd_get_error ()));
5394 bfd_set_section_alignment (stdoutput, sec, align);
5398 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
5404 name = input_line_pointer;
5405 endc = get_symbol_end ();
5407 ext_sym = symbol_find_or_make (name);
5409 *input_line_pointer = endc;
5411 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
5412 SF_SET_FUNCTION (ext_sym);
5413 SF_SET_PROCESS (ext_sym);
5414 coff_add_linesym (ext_sym);
5416 demand_empty_rest_of_line ();
5420 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
5422 if (tocdata_section == 0)
5424 tocdata_section = subseg_new (".tocd", 0);
5425 /* FIXME: section flags won't work. */
5426 bfd_set_section_flags (stdoutput, tocdata_section,
5427 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
5428 | SEC_READONLY | SEC_DATA));
5430 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
5434 rdata_section = subseg_new (".tocd", 0);
5437 ppc_set_current_section (tocdata_section);
5439 demand_empty_rest_of_line ();
5442 /* Don't adjust TOC relocs to use the section symbol. */
5445 ppc_pe_fix_adjustable (fixS *fix)
5447 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
5454 /* XCOFF specific symbol and file handling. */
5456 /* Canonicalize the symbol name. We use the to force the suffix, if
5457 any, to use square brackets, and to be in upper case. */
5460 ppc_canonicalize_symbol_name (char *name)
5464 if (ppc_stab_symbol)
5467 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
5481 for (s++; *s != '\0' && *s != brac; s++)
5484 if (*s == '\0' || s[1] != '\0')
5485 as_bad (_("bad symbol suffix"));
5493 /* Set the class of a symbol based on the suffix, if any. This is
5494 called whenever a new symbol is created. */
5497 ppc_symbol_new_hook (symbolS *sym)
5499 struct ppc_tc_sy *tc;
5502 tc = symbol_get_tc (sym);
5505 tc->symbol_class = -1;
5506 tc->real_name = NULL;
5513 if (ppc_stab_symbol)
5516 s = strchr (S_GET_NAME (sym), '[');
5517 if (s == (const char *) NULL)
5519 /* There is no suffix. */
5528 if (strcmp (s, "BS]") == 0)
5529 tc->symbol_class = XMC_BS;
5532 if (strcmp (s, "DB]") == 0)
5533 tc->symbol_class = XMC_DB;
5534 else if (strcmp (s, "DS]") == 0)
5535 tc->symbol_class = XMC_DS;
5538 if (strcmp (s, "GL]") == 0)
5539 tc->symbol_class = XMC_GL;
5542 if (strcmp (s, "PR]") == 0)
5543 tc->symbol_class = XMC_PR;
5546 if (strcmp (s, "RO]") == 0)
5547 tc->symbol_class = XMC_RO;
5548 else if (strcmp (s, "RW]") == 0)
5549 tc->symbol_class = XMC_RW;
5552 if (strcmp (s, "SV]") == 0)
5553 tc->symbol_class = XMC_SV;
5556 if (strcmp (s, "TC]") == 0)
5557 tc->symbol_class = XMC_TC;
5558 else if (strcmp (s, "TI]") == 0)
5559 tc->symbol_class = XMC_TI;
5560 else if (strcmp (s, "TB]") == 0)
5561 tc->symbol_class = XMC_TB;
5562 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5563 tc->symbol_class = XMC_TC0;
5566 if (strcmp (s, "UA]") == 0)
5567 tc->symbol_class = XMC_UA;
5568 else if (strcmp (s, "UC]") == 0)
5569 tc->symbol_class = XMC_UC;
5572 if (strcmp (s, "XO]") == 0)
5573 tc->symbol_class = XMC_XO;
5577 if (tc->symbol_class == -1)
5578 as_bad (_("unrecognized symbol suffix"));
5581 /* Set the class of a label based on where it is defined. This
5582 handles symbols without suffixes. Also, move the symbol so that it
5583 follows the csect symbol. */
5586 ppc_frob_label (symbolS *sym)
5588 if (ppc_current_csect != (symbolS *) NULL)
5590 if (symbol_get_tc (sym)->symbol_class == -1)
5591 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5593 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5594 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5595 &symbol_rootP, &symbol_lastP);
5596 symbol_get_tc (ppc_current_csect)->within = sym;
5597 symbol_get_tc (sym)->within = ppc_current_csect;
5601 dwarf2_emit_label (sym);
5605 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5606 seen. It tells ppc_adjust_symtab whether it needs to look through
5609 static bfd_boolean ppc_saw_abs;
5611 /* Change the name of a symbol just before writing it out. Set the
5612 real name if the .rename pseudo-op was used. Otherwise, remove any
5613 class suffix. Return 1 if the symbol should not be included in the
5617 ppc_frob_symbol (symbolS *sym)
5619 static symbolS *ppc_last_function;
5620 static symbolS *set_end;
5622 /* Discard symbols that should not be included in the output symbol
5624 if (! symbol_used_in_reloc_p (sym)
5625 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5626 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5627 && ! symbol_get_tc (sym)->output
5628 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5631 /* This one will disappear anyway. Don't make a csect sym for it. */
5632 if (sym == abs_section_sym)
5635 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5636 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5642 name = S_GET_NAME (sym);
5643 s = strchr (name, '[');
5644 if (s != (char *) NULL)
5650 snew = xmalloc (len + 1);
5651 memcpy (snew, name, len);
5654 S_SET_NAME (sym, snew);
5658 if (set_end != (symbolS *) NULL)
5660 SA_SET_SYM_ENDNDX (set_end, sym);
5664 if (SF_GET_FUNCTION (sym))
5666 if (ppc_last_function != (symbolS *) NULL)
5667 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5668 ppc_last_function = sym;
5669 if (symbol_get_tc (sym)->u.size != (symbolS *) NULL)
5671 resolve_symbol_value (symbol_get_tc (sym)->u.size);
5672 SA_SET_SYM_FSIZE (sym,
5673 (long) S_GET_VALUE (symbol_get_tc (sym)->u.size));
5676 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5677 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5679 if (ppc_last_function == (symbolS *) NULL)
5680 as_bad (_(".ef with no preceding .function"));
5683 set_end = ppc_last_function;
5684 ppc_last_function = NULL;
5686 /* We don't have a C_EFCN symbol, but we need to force the
5687 COFF backend to believe that it has seen one. */
5688 coff_last_function = NULL;
5692 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5693 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5694 && S_GET_STORAGE_CLASS (sym) != C_FILE
5695 && S_GET_STORAGE_CLASS (sym) != C_FCN
5696 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5697 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5698 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5699 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5700 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5701 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5702 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5704 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5705 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5706 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5709 union internal_auxent *a;
5711 /* Create a csect aux. */
5712 i = S_GET_NUMBER_AUXILIARY (sym);
5713 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5714 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5715 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5717 /* This is the TOC table. */
5718 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5719 a->x_csect.x_scnlen.l = 0;
5720 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5722 else if (symbol_get_tc (sym)->subseg != 0)
5724 /* This is a csect symbol. x_scnlen is the size of the
5726 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5727 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5728 S_GET_SEGMENT (sym))
5729 - S_GET_VALUE (sym));
5732 resolve_symbol_value (symbol_get_tc (sym)->next);
5733 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5734 - S_GET_VALUE (sym));
5736 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5738 else if (S_GET_SEGMENT (sym) == bss_section)
5740 /* This is a common symbol. */
5741 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5742 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5743 if (S_IS_EXTERNAL (sym))
5744 symbol_get_tc (sym)->symbol_class = XMC_RW;
5746 symbol_get_tc (sym)->symbol_class = XMC_BS;
5748 else if (S_GET_SEGMENT (sym) == absolute_section)
5750 /* This is an absolute symbol. The csect will be created by
5751 ppc_adjust_symtab. */
5753 a->x_csect.x_smtyp = XTY_LD;
5754 if (symbol_get_tc (sym)->symbol_class == -1)
5755 symbol_get_tc (sym)->symbol_class = XMC_XO;
5757 else if (! S_IS_DEFINED (sym))
5759 /* This is an external symbol. */
5760 a->x_csect.x_scnlen.l = 0;
5761 a->x_csect.x_smtyp = XTY_ER;
5763 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5767 /* This is a TOC definition. x_scnlen is the size of the
5769 next = symbol_next (sym);
5770 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5771 next = symbol_next (next);
5772 if (next == (symbolS *) NULL
5773 || symbol_get_tc (next)->symbol_class != XMC_TC)
5775 if (ppc_after_toc_frag == (fragS *) NULL)
5776 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5778 - S_GET_VALUE (sym));
5780 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5781 - S_GET_VALUE (sym));
5785 resolve_symbol_value (next);
5786 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5787 - S_GET_VALUE (sym));
5789 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5795 /* This is a normal symbol definition. x_scnlen is the
5796 symbol index of the containing csect. */
5797 if (S_GET_SEGMENT (sym) == text_section)
5798 csect = ppc_text_csects;
5799 else if (S_GET_SEGMENT (sym) == data_section)
5800 csect = ppc_data_csects;
5804 /* Skip the initial dummy symbol. */
5805 csect = symbol_get_tc (csect)->next;
5807 if (csect == (symbolS *) NULL)
5809 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5810 a->x_csect.x_scnlen.l = 0;
5814 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5816 resolve_symbol_value (symbol_get_tc (csect)->next);
5817 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5818 > S_GET_VALUE (sym))
5820 csect = symbol_get_tc (csect)->next;
5823 a->x_csect.x_scnlen.p =
5824 coffsymbol (symbol_get_bfdsym (csect))->native;
5825 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5828 a->x_csect.x_smtyp = XTY_LD;
5831 a->x_csect.x_parmhash = 0;
5832 a->x_csect.x_snhash = 0;
5833 if (symbol_get_tc (sym)->symbol_class == -1)
5834 a->x_csect.x_smclas = XMC_PR;
5836 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5837 a->x_csect.x_stab = 0;
5838 a->x_csect.x_snstab = 0;
5840 /* Don't let the COFF backend resort these symbols. */
5841 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5843 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5845 /* We want the value to be the symbol index of the referenced
5846 csect symbol. BFD will do that for us if we set the right
5848 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5849 combined_entry_type *c = coffsymbol (bsym)->native;
5851 S_SET_VALUE (sym, (valueT) (size_t) c);
5852 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5854 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5859 block = symbol_get_tc (sym)->within;
5862 /* The value is the offset from the enclosing csect. */
5865 csect = symbol_get_tc (block)->within;
5866 resolve_symbol_value (csect);
5867 base = S_GET_VALUE (csect);
5872 S_SET_VALUE (sym, S_GET_VALUE (sym) - base);
5874 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5875 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5877 /* We want the value to be a file offset into the line numbers.
5878 BFD will do that for us if we set the right flags. We have
5879 already set the value correctly. */
5880 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5886 /* Adjust the symbol table. This creates csect symbols for all
5887 absolute symbols. */
5890 ppc_adjust_symtab (void)
5897 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5901 union internal_auxent *a;
5903 if (S_GET_SEGMENT (sym) != absolute_section)
5906 csect = symbol_create (".abs[XO]", absolute_section,
5907 S_GET_VALUE (sym), &zero_address_frag);
5908 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5909 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5910 i = S_GET_NUMBER_AUXILIARY (csect);
5911 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5912 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5913 a->x_csect.x_scnlen.l = 0;
5914 a->x_csect.x_smtyp = XTY_SD;
5915 a->x_csect.x_parmhash = 0;
5916 a->x_csect.x_snhash = 0;
5917 a->x_csect.x_smclas = XMC_XO;
5918 a->x_csect.x_stab = 0;
5919 a->x_csect.x_snstab = 0;
5921 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5923 i = S_GET_NUMBER_AUXILIARY (sym);
5924 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5925 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5926 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5929 ppc_saw_abs = FALSE;
5932 /* Set the VMA for a section. This is called on all the sections in
5936 ppc_frob_section (asection *sec)
5938 static bfd_vma vma = 0;
5940 /* Dwarf sections start at 0. */
5941 if (bfd_get_section_flags (NULL, sec) & SEC_DEBUGGING)
5944 vma = md_section_align (sec, vma);
5945 bfd_set_section_vma (stdoutput, sec, vma);
5946 vma += bfd_section_size (stdoutput, sec);
5949 #endif /* OBJ_XCOFF */
5952 md_atof (int type, char *litp, int *sizep)
5954 return ieee_md_atof (type, litp, sizep, target_big_endian);
5957 /* Write a value out to the object file, using the appropriate
5961 md_number_to_chars (char *buf, valueT val, int n)
5963 if (target_big_endian)
5964 number_to_chars_bigendian (buf, val, n);
5966 number_to_chars_littleendian (buf, val, n);
5969 /* Align a section (I don't know why this is machine dependent). */
5972 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5977 int align = bfd_get_section_alignment (stdoutput, seg);
5979 return ((addr + (1 << align) - 1) & (-1 << align));
5983 /* We don't have any form of relaxing. */
5986 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5987 asection *seg ATTRIBUTE_UNUSED)
5993 /* Convert a machine dependent frag. We never generate these. */
5996 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5997 asection *sec ATTRIBUTE_UNUSED,
5998 fragS *fragp ATTRIBUTE_UNUSED)
6003 /* We have no need to default values of symbols. */
6006 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
6011 /* Functions concerning relocs. */
6013 /* The location from which a PC relative jump should be calculated,
6014 given a PC relative reloc. */
6017 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
6019 return fixp->fx_frag->fr_address + fixp->fx_where;
6024 /* This is called to see whether a fixup should be adjusted to use a
6025 section symbol. We take the opportunity to change a fixup against
6026 a symbol in the TOC subsegment into a reloc against the
6027 corresponding .tc symbol. */
6030 ppc_fix_adjustable (fixS *fix)
6032 valueT val = resolve_symbol_value (fix->fx_addsy);
6033 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
6034 TC_SYMFIELD_TYPE *tc;
6036 if (symseg == absolute_section)
6039 /* Always adjust symbols in debugging sections. */
6040 if (bfd_get_section_flags (stdoutput, symseg) & SEC_DEBUGGING)
6043 if (ppc_toc_csect != (symbolS *) NULL
6044 && fix->fx_addsy != ppc_toc_csect
6045 && symseg == data_section
6046 && val >= ppc_toc_frag->fr_address
6047 && (ppc_after_toc_frag == (fragS *) NULL
6048 || val < ppc_after_toc_frag->fr_address))
6052 for (sy = symbol_next (ppc_toc_csect);
6053 sy != (symbolS *) NULL;
6054 sy = symbol_next (sy))
6056 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
6058 if (sy_tc->symbol_class == XMC_TC0)
6060 if (sy_tc->symbol_class != XMC_TC)
6062 if (val == resolve_symbol_value (sy))
6065 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
6070 as_bad_where (fix->fx_file, fix->fx_line,
6071 _("symbol in .toc does not match any .tc"));
6074 /* Possibly adjust the reloc to be against the csect. */
6075 tc = symbol_get_tc (fix->fx_addsy);
6077 && tc->symbol_class != XMC_TC0
6078 && tc->symbol_class != XMC_TC
6079 && symseg != bss_section
6080 /* Don't adjust if this is a reloc in the toc section. */
6081 && (symseg != data_section
6082 || ppc_toc_csect == NULL
6083 || val < ppc_toc_frag->fr_address
6084 || (ppc_after_toc_frag != NULL
6085 && val >= ppc_after_toc_frag->fr_address)))
6087 symbolS *csect = tc->within;
6089 /* If the symbol was not declared by a label (eg: a section symbol),
6090 use the section instead of the csect. This doesn't happen in
6091 normal AIX assembly code. */
6093 csect = seg_info (symseg)->sym;
6095 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
6096 fix->fx_addsy = csect;
6101 /* Adjust a reloc against a .lcomm symbol to be against the base
6103 if (symseg == bss_section
6104 && ! S_IS_EXTERNAL (fix->fx_addsy))
6106 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
6108 fix->fx_offset += val - resolve_symbol_value (sy);
6115 /* A reloc from one csect to another must be kept. The assembler
6116 will, of course, keep relocs between sections, and it will keep
6117 absolute relocs, but we need to force it to keep PC relative relocs
6118 between two csects in the same section. */
6121 ppc_force_relocation (fixS *fix)
6123 /* At this point fix->fx_addsy should already have been converted to
6124 a csect symbol. If the csect does not include the fragment, then
6125 we need to force the relocation. */
6127 && fix->fx_addsy != NULL
6128 && symbol_get_tc (fix->fx_addsy)->subseg != 0
6129 && ((symbol_get_frag (fix->fx_addsy)->fr_address
6130 > fix->fx_frag->fr_address)
6131 || (symbol_get_tc (fix->fx_addsy)->next != NULL
6132 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
6133 <= fix->fx_frag->fr_address))))
6136 return generic_force_reloc (fix);
6140 ppc_new_dot_label (symbolS *sym)
6142 /* Anchor this label to the current csect for relocations. */
6143 symbol_get_tc (sym)->within = ppc_current_csect;
6146 #endif /* OBJ_XCOFF */
6149 /* If this function returns non-zero, it guarantees that a relocation
6150 will be emitted for a fixup. */
6153 ppc_force_relocation (fixS *fix)
6155 /* Branch prediction relocations must force a relocation, as must
6156 the vtable description relocs. */
6157 switch (fix->fx_r_type)
6159 case BFD_RELOC_PPC_B16_BRTAKEN:
6160 case BFD_RELOC_PPC_B16_BRNTAKEN:
6161 case BFD_RELOC_PPC_BA16_BRTAKEN:
6162 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6163 case BFD_RELOC_24_PLT_PCREL:
6164 case BFD_RELOC_PPC64_TOC:
6170 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
6171 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
6174 return generic_force_reloc (fix);
6178 ppc_fix_adjustable (fixS *fix)
6180 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
6181 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
6182 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
6183 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
6184 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_DS
6185 && fix->fx_r_type != BFD_RELOC_PPC64_GOT16_LO_DS
6186 && fix->fx_r_type != BFD_RELOC_GPREL16
6187 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
6188 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
6189 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
6190 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
6195 ppc_frag_check (struct frag *fragP)
6197 if (!fragP->has_code)
6200 if (ppc_mach() == bfd_mach_ppc_vle)
6202 if (((fragP->fr_address + fragP->insn_addr) & 1) != 0)
6203 as_bad (_("instruction address is not a multiple of 2"));
6207 if (((fragP->fr_address + fragP->insn_addr) & 3) != 0)
6208 as_bad (_("instruction address is not a multiple of 4"));
6212 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
6213 rs_align_code frag. */
6216 ppc_handle_align (struct frag *fragP)
6218 valueT count = (fragP->fr_next->fr_address
6219 - (fragP->fr_address + fragP->fr_fix));
6221 if (ppc_mach() == bfd_mach_ppc_vle && count != 0 && (count & 1) == 0)
6223 char *dest = fragP->fr_literal + fragP->fr_fix;
6226 md_number_to_chars (dest, 0x4400, 2);
6228 else if (count != 0 && (count & 3) == 0)
6230 char *dest = fragP->fr_literal + fragP->fr_fix;
6234 if (count > 4 * nop_limit && count < 0x2000000)
6238 /* Make a branch, then follow with nops. Insert another
6239 frag to handle the nops. */
6240 md_number_to_chars (dest, 0x48000000 + count, 4);
6245 rest = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6246 memcpy (rest, fragP, SIZEOF_STRUCT_FRAG);
6247 fragP->fr_next = rest;
6249 rest->fr_address += rest->fr_fix + 4;
6251 /* If we leave the next frag as rs_align_code we'll come here
6252 again, resulting in a bunch of branches rather than a
6253 branch followed by nops. */
6254 rest->fr_type = rs_align;
6255 dest = rest->fr_literal;
6258 md_number_to_chars (dest, 0x60000000, 4);
6260 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
6261 || (ppc_cpu & PPC_OPCODE_POWER7) != 0)
6263 /* For power6 and power7, we want the last nop to be a group
6264 terminating one. Do this by inserting an rs_fill frag immediately
6265 after this one, with its address set to the last nop location.
6266 This will automatically reduce the number of nops in the current
6270 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
6272 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
6273 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
6274 group_nop->fr_fix = 0;
6275 group_nop->fr_offset = 1;
6276 group_nop->fr_type = rs_fill;
6277 fragP->fr_next = group_nop;
6278 dest = group_nop->fr_literal;
6281 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
6283 if (ppc_cpu & PPC_OPCODE_E500MC)
6284 /* e500mc group terminating nop: "ori 0,0,0". */
6285 md_number_to_chars (dest, 0x60000000, 4);
6287 /* power7 group terminating nop: "ori 2,2,0". */
6288 md_number_to_chars (dest, 0x60420000, 4);
6291 /* power6 group terminating nop: "ori 1,1,0". */
6292 md_number_to_chars (dest, 0x60210000, 4);
6297 /* Apply a fixup to the object code. This is called for all the
6298 fixups we generated by the call to fix_new_exp, above. In the call
6299 above we used a reloc code which was the largest legal reloc code
6300 plus the operand index. Here we undo that to recover the operand
6301 index. At this point all symbol values should be fully resolved,
6302 and we attempt to completely resolve the reloc. If we can not do
6303 that, we determine the correct reloc code and put it back in the
6307 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
6309 valueT value = * valP;
6312 if (fixP->fx_addsy != NULL)
6314 /* Hack around bfd_install_relocation brain damage. */
6316 value += fixP->fx_frag->fr_address + fixP->fx_where;
6321 /* FIXME FIXME FIXME: The value we are passed in *valP includes
6322 the symbol values. If we are doing this relocation the code in
6323 write.c is going to call bfd_install_relocation, which is also
6324 going to use the symbol value. That means that if the reloc is
6325 fully resolved we want to use *valP since bfd_install_relocation is
6327 However, if the reloc is not fully resolved we do not want to
6328 use *valP, and must use fx_offset instead. If the relocation
6329 is PC-relative, we then need to re-apply md_pcrel_from_section
6330 to this new relocation value. */
6331 if (fixP->fx_addsy == (symbolS *) NULL)
6336 value = fixP->fx_offset;
6338 value -= md_pcrel_from_section (fixP, seg);
6342 if (fixP->fx_subsy != (symbolS *) NULL)
6344 /* We can't actually support subtracting a symbol. */
6345 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
6348 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
6351 const struct powerpc_operand *operand;
6355 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
6357 operand = &powerpc_operands[opindex];
6360 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
6361 does not generate a reloc. It uses the offset of `sym' within its
6362 csect. Other usages, such as `.long sym', generate relocs. This
6363 is the documented behaviour of non-TOC symbols. */
6364 if ((operand->flags & PPC_OPERAND_PARENS) != 0
6365 && (operand->bitm & 0xfff0) == 0xfff0
6366 && operand->shift == 0
6367 && (operand->insert == NULL || ppc_obj64)
6368 && fixP->fx_addsy != NULL
6369 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
6370 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
6371 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
6372 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
6374 value = fixP->fx_offset;
6379 /* Fetch the instruction, insert the fully resolved operand
6380 value, and stuff the instruction back again. */
6381 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6382 if (target_big_endian)
6384 if (fixP->fx_size == 4)
6385 insn = bfd_getb32 ((unsigned char *) where);
6387 insn = bfd_getb16 ((unsigned char *) where);
6391 if (fixP->fx_size == 4)
6392 insn = bfd_getl32 ((unsigned char *) where);
6394 insn = bfd_getl16 ((unsigned char *) where);
6396 insn = ppc_insert_operand (insn, operand, (offsetT) value,
6397 fixP->tc_fix_data.ppc_cpu,
6398 fixP->fx_file, fixP->fx_line);
6399 if (target_big_endian)
6401 if (fixP->fx_size == 4)
6402 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6404 bfd_putb16 ((bfd_vma) insn, (unsigned char *) where);
6408 if (fixP->fx_size == 4)
6409 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6411 bfd_putl16 ((bfd_vma) insn, (unsigned char *) where);
6415 /* Nothing else to do here. */
6418 gas_assert (fixP->fx_addsy != NULL);
6420 /* Determine a BFD reloc value based on the operand information.
6421 We are only prepared to turn a few of the operands into
6423 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
6424 && operand->bitm == 0x3fffffc
6425 && operand->shift == 0)
6426 fixP->fx_r_type = BFD_RELOC_PPC_B26;
6427 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
6428 && operand->bitm == 0xfffc
6429 && operand->shift == 0)
6431 fixP->fx_r_type = BFD_RELOC_PPC_B16;
6434 if (target_big_endian)
6435 fixP->fx_where += 2;
6438 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
6439 && operand->bitm == 0x1fe
6440 && operand->shift == -1)
6441 fixP->fx_r_type = BFD_RELOC_PPC_VLE_REL8;
6442 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
6443 && operand->bitm == 0xfffe
6444 && operand->shift == 0)
6445 fixP->fx_r_type = BFD_RELOC_PPC_VLE_REL15;
6446 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
6447 && operand->bitm == 0x1fffffe
6448 && operand->shift == 0)
6449 fixP->fx_r_type = BFD_RELOC_PPC_VLE_REL24;
6450 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
6451 && operand->bitm == 0x3fffffc
6452 && operand->shift == 0)
6453 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
6454 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
6455 && operand->bitm == 0xfffc
6456 && operand->shift == 0)
6458 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
6461 if (target_big_endian)
6462 fixP->fx_where += 2;
6465 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
6466 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
6467 && (operand->bitm & 0xfff0) == 0xfff0
6468 && operand->shift == 0)
6470 if (ppc_is_toc_sym (fixP->fx_addsy))
6472 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
6475 && (operand->flags & PPC_OPERAND_DS) != 0)
6476 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
6481 fixP->fx_r_type = BFD_RELOC_16;
6484 && (operand->flags & PPC_OPERAND_DS) != 0)
6485 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
6489 if (target_big_endian)
6490 fixP->fx_where += 2;
6492 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
6498 /* Use expr_symbol_where to see if this is an expression
6500 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
6501 as_bad_where (fixP->fx_file, fixP->fx_line,
6502 _("unresolved expression that must be resolved"));
6504 as_bad_where (fixP->fx_file, fixP->fx_line,
6505 _("unsupported relocation against %s"),
6506 S_GET_NAME (fixP->fx_addsy));
6514 ppc_elf_validate_fix (fixP, seg);
6516 switch (fixP->fx_r_type)
6518 case BFD_RELOC_CTOR:
6525 fixP->fx_r_type = BFD_RELOC_32_PCREL;
6529 case BFD_RELOC_32_PCREL:
6530 case BFD_RELOC_PPC_EMB_NADDR32:
6531 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6538 fixP->fx_r_type = BFD_RELOC_64_PCREL;
6541 case BFD_RELOC_64_PCREL:
6542 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6546 case BFD_RELOC_GPREL16:
6547 case BFD_RELOC_16_GOT_PCREL:
6548 case BFD_RELOC_16_GOTOFF:
6549 case BFD_RELOC_LO16_GOTOFF:
6550 case BFD_RELOC_HI16_GOTOFF:
6551 case BFD_RELOC_HI16_S_GOTOFF:
6552 case BFD_RELOC_16_BASEREL:
6553 case BFD_RELOC_LO16_BASEREL:
6554 case BFD_RELOC_HI16_BASEREL:
6555 case BFD_RELOC_HI16_S_BASEREL:
6556 case BFD_RELOC_PPC_EMB_NADDR16:
6557 case BFD_RELOC_PPC_EMB_NADDR16_LO:
6558 case BFD_RELOC_PPC_EMB_NADDR16_HI:
6559 case BFD_RELOC_PPC_EMB_NADDR16_HA:
6560 case BFD_RELOC_PPC_EMB_SDAI16:
6561 case BFD_RELOC_PPC_EMB_SDA2REL:
6562 case BFD_RELOC_PPC_EMB_SDA2I16:
6563 case BFD_RELOC_PPC_EMB_RELSEC16:
6564 case BFD_RELOC_PPC_EMB_RELST_LO:
6565 case BFD_RELOC_PPC_EMB_RELST_HI:
6566 case BFD_RELOC_PPC_EMB_RELST_HA:
6567 case BFD_RELOC_PPC_EMB_RELSDA:
6568 case BFD_RELOC_PPC_TOC16:
6570 case BFD_RELOC_PPC64_TOC16_LO:
6571 case BFD_RELOC_PPC64_TOC16_HI:
6572 case BFD_RELOC_PPC64_TOC16_HA:
6576 if (fixP->fx_addsy != NULL)
6577 as_bad_where (fixP->fx_file, fixP->fx_line,
6578 _("cannot emit PC relative %s relocation against %s"),
6579 bfd_get_reloc_code_name (fixP->fx_r_type),
6580 S_GET_NAME (fixP->fx_addsy));
6582 as_bad_where (fixP->fx_file, fixP->fx_line,
6583 _("cannot emit PC relative %s relocation"),
6584 bfd_get_reloc_code_name (fixP->fx_r_type));
6587 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6593 fixP->fx_r_type = BFD_RELOC_16_PCREL;
6596 case BFD_RELOC_16_PCREL:
6597 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6601 case BFD_RELOC_LO16:
6603 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6606 case BFD_RELOC_LO16_PCREL:
6607 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6611 /* This case happens when you write, for example,
6613 where L1 and L2 are defined later. */
6614 case BFD_RELOC_HI16:
6616 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6619 case BFD_RELOC_HI16_PCREL:
6620 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6624 case BFD_RELOC_HI16_S:
6626 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6629 case BFD_RELOC_HI16_S_PCREL:
6630 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6634 case BFD_RELOC_PPC_VLE_SDAREL_LO16A:
6635 case BFD_RELOC_PPC_VLE_LO16A:
6637 int tval = PPC_VLE_LO16A (value);
6638 valueT oldval = md_chars_to_number (
6639 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6640 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6641 (oldval | tval), 4);
6645 case BFD_RELOC_PPC_VLE_SDAREL_LO16D:
6646 case BFD_RELOC_PPC_VLE_LO16D:
6648 int tval = PPC_VLE_LO16D (value);
6649 valueT oldval = md_chars_to_number (
6650 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6651 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6652 (oldval | tval), 4);
6656 case BFD_RELOC_PPC_VLE_SDAREL_HI16A:
6657 case BFD_RELOC_PPC_VLE_HI16A:
6659 int tval = PPC_VLE_HI16A (value);
6660 valueT oldval = md_chars_to_number (
6661 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6662 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6663 (oldval | tval), 4);
6667 case BFD_RELOC_PPC_VLE_SDAREL_HI16D:
6668 case BFD_RELOC_PPC_VLE_HI16D:
6670 int tval = PPC_VLE_HI16D (value);
6671 valueT oldval = md_chars_to_number (
6672 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6673 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6674 (oldval | tval), 4);
6678 case BFD_RELOC_PPC_VLE_SDAREL_HA16A:
6679 case BFD_RELOC_PPC_VLE_HA16A:
6681 int tval = PPC_VLE_HA16A (value);
6682 valueT oldval = md_chars_to_number (
6683 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6684 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6685 (oldval | tval), 4);
6689 case BFD_RELOC_PPC_VLE_SDAREL_HA16D:
6690 case BFD_RELOC_PPC_VLE_HA16D:
6692 int tval = PPC_VLE_HA16D (value);
6693 valueT oldval = md_chars_to_number (
6694 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6695 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6696 (oldval | tval), 4);
6700 case BFD_RELOC_PPC_VLE_SDA21_LO:
6702 int tval = PPC_LO (value);
6703 valueT oldval = md_chars_to_number (
6704 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6705 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6706 (oldval | tval), 4);
6710 case BFD_RELOC_PPC_VLE_SDA21:
6712 valueT oldval = md_chars_to_number (
6713 fixP->fx_frag->fr_literal + fixP->fx_where, 4);
6714 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6715 (oldval | value), 4);
6720 case BFD_RELOC_NONE:
6725 case BFD_RELOC_PPC64_HIGHER:
6728 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6729 PPC_HIGHER (value), 2);
6732 case BFD_RELOC_PPC64_HIGHER_S:
6735 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6736 PPC_HIGHERA (value), 2);
6739 case BFD_RELOC_PPC64_HIGHEST:
6742 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6743 PPC_HIGHEST (value), 2);
6746 case BFD_RELOC_PPC64_HIGHEST_S:
6749 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6750 PPC_HIGHESTA (value), 2);
6753 case BFD_RELOC_PPC64_ADDR16_DS:
6754 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6755 case BFD_RELOC_PPC64_GOT16_DS:
6756 case BFD_RELOC_PPC64_GOT16_LO_DS:
6757 case BFD_RELOC_PPC64_PLT16_LO_DS:
6758 case BFD_RELOC_PPC64_SECTOFF_DS:
6759 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6760 case BFD_RELOC_PPC64_TOC16_DS:
6761 case BFD_RELOC_PPC64_TOC16_LO_DS:
6762 case BFD_RELOC_PPC64_PLTGOT16_DS:
6763 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6767 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
6768 unsigned long val, mask;
6770 if (target_big_endian)
6771 val = bfd_getb32 (where - 2);
6773 val = bfd_getl32 (where);
6775 /* lq insns reserve the four lsbs. */
6776 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
6777 && (val & (0x3f << 26)) == (56u << 26))
6779 val |= value & mask;
6780 if (target_big_endian)
6781 bfd_putb16 ((bfd_vma) val, where);
6783 bfd_putl16 ((bfd_vma) val, where);
6787 case BFD_RELOC_PPC_B16_BRTAKEN:
6788 case BFD_RELOC_PPC_B16_BRNTAKEN:
6789 case BFD_RELOC_PPC_BA16_BRTAKEN:
6790 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6793 case BFD_RELOC_PPC_TLS:
6794 case BFD_RELOC_PPC_TLSGD:
6795 case BFD_RELOC_PPC_TLSLD:
6798 case BFD_RELOC_PPC_DTPMOD:
6799 case BFD_RELOC_PPC_TPREL16:
6800 case BFD_RELOC_PPC_TPREL16_LO:
6801 case BFD_RELOC_PPC_TPREL16_HI:
6802 case BFD_RELOC_PPC_TPREL16_HA:
6803 case BFD_RELOC_PPC_TPREL:
6804 case BFD_RELOC_PPC_DTPREL16:
6805 case BFD_RELOC_PPC_DTPREL16_LO:
6806 case BFD_RELOC_PPC_DTPREL16_HI:
6807 case BFD_RELOC_PPC_DTPREL16_HA:
6808 case BFD_RELOC_PPC_DTPREL:
6809 case BFD_RELOC_PPC_GOT_TLSGD16:
6810 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6811 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6812 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6813 case BFD_RELOC_PPC_GOT_TLSLD16:
6814 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6815 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6816 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6817 case BFD_RELOC_PPC_GOT_TPREL16:
6818 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6819 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6820 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6821 case BFD_RELOC_PPC_GOT_DTPREL16:
6822 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6823 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6824 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6825 case BFD_RELOC_PPC64_TPREL16_DS:
6826 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6827 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6828 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6829 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6830 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6831 case BFD_RELOC_PPC64_DTPREL16_DS:
6832 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6833 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6834 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6835 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6836 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6837 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6840 /* Because SDA21 modifies the register field, the size is set to 4
6841 bytes, rather than 2, so offset it here appropriately. */
6842 case BFD_RELOC_PPC_EMB_SDA21:
6846 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6847 + ((target_big_endian) ? 2 : 0),
6854 /* This can occur if there is a bug in the input assembler, eg:
6855 ".byte <undefined_symbol> - ." */
6857 as_bad (_("unable to handle reference to symbol %s"),
6858 S_GET_NAME (fixP->fx_addsy));
6860 as_bad (_("unable to resolve expression"));
6864 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6868 case BFD_RELOC_24_PLT_PCREL:
6869 case BFD_RELOC_PPC_LOCAL24PC:
6870 if (!fixP->fx_pcrel && !fixP->fx_done)
6878 /* Fetch the instruction, insert the fully resolved operand
6879 value, and stuff the instruction back again. */
6880 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6881 if (target_big_endian)
6882 insn = bfd_getb32 ((unsigned char *) where);
6884 insn = bfd_getl32 ((unsigned char *) where);
6885 if ((value & 3) != 0)
6886 as_bad_where (fixP->fx_file, fixP->fx_line,
6887 _("must branch to an address a multiple of 4"));
6888 if ((offsetT) value < -0x40000000
6889 || (offsetT) value >= 0x40000000)
6890 as_bad_where (fixP->fx_file, fixP->fx_line,
6891 _("@local or @plt branch destination is too far away, %ld bytes"),
6893 insn = insn | (value & 0x03fffffc);
6894 if (target_big_endian)
6895 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6897 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6901 case BFD_RELOC_VTABLE_INHERIT:
6904 && !S_IS_DEFINED (fixP->fx_addsy)
6905 && !S_IS_WEAK (fixP->fx_addsy))
6906 S_SET_WEAK (fixP->fx_addsy);
6909 case BFD_RELOC_VTABLE_ENTRY:
6914 /* Generated by reference to `sym@tocbase'. The sym is
6915 ignored by the linker. */
6916 case BFD_RELOC_PPC64_TOC:
6922 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6929 fixP->fx_addnumber = value;
6931 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6932 from the section contents. If we are going to be emitting a reloc
6933 then the section contents are immaterial, so don't warn if they
6934 happen to overflow. Leave such warnings to ld. */
6936 fixP->fx_no_overflow = 1;
6938 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6939 fixP->fx_addnumber = 0;
6943 fixP->fx_addnumber = 0;
6945 /* We want to use the offset within the toc, not the actual VMA
6947 fixP->fx_addnumber =
6948 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6949 - S_GET_VALUE (ppc_toc_csect);
6955 /* Generate a reloc for a fixup. */
6958 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6962 reloc = (arelent *) xmalloc (sizeof (arelent));
6964 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6965 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6966 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6967 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6968 if (reloc->howto == (reloc_howto_type *) NULL)
6970 as_bad_where (fixp->fx_file, fixp->fx_line,
6971 _("reloc %d not supported by object file format"),
6972 (int) fixp->fx_r_type);
6975 reloc->addend = fixp->fx_addnumber;
6981 ppc_cfi_frame_initial_instructions (void)
6983 cfi_add_CFA_def_cfa (1, 0);
6987 tc_ppc_regname_to_dw2regnum (char *regname)
6989 unsigned int regnum = -1;
6993 static struct { char *name; int dw2regnum; } regnames[] =
6995 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6996 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6997 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6998 { "spe_acc", 111 }, { "spefscr", 112 }
7001 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
7002 if (strcmp (regnames[i].name, regname) == 0)
7003 return regnames[i].dw2regnum;
7005 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
7007 p = regname + 1 + (regname[1] == '.');
7008 regnum = strtoul (p, &q, 10);
7009 if (p == q || *q || regnum >= 32)
7011 if (regname[0] == 'f')
7013 else if (regname[0] == 'v')
7016 else if (regname[0] == 'c' && regname[1] == 'r')
7018 p = regname + 2 + (regname[2] == '.');
7019 if (p[0] < '0' || p[0] > '7' || p[1])
7021 regnum = p[0] - '0' + 68;