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 Free Software Foundation, Inc.
4 Written by Ian Lance Taylor, Cygnus Support.
6 This file is part of GAS, the GNU Assembler.
8 GAS is free software; you can redistribute it and/or modify
9 it under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 3, or (at your option)
13 GAS is distributed in the hope that it will be useful,
14 but WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 GNU General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GAS; see the file COPYING. If not, write to the Free
20 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
24 #include "safe-ctype.h"
26 #include "dw2gencfi.h"
27 #include "opcode/ppc.h"
31 #include "dwarf2dbg.h"
38 /* This is the assembler for the PowerPC or POWER (RS/6000) chips. */
40 /* Tell the main code what the endianness is. */
41 extern int target_big_endian;
43 /* Whether or not, we've set target_big_endian. */
44 static int set_target_endian = 0;
46 /* Whether to use user friendly register names. */
47 #ifndef TARGET_REG_NAMES_P
49 #define TARGET_REG_NAMES_P TRUE
51 #define TARGET_REG_NAMES_P FALSE
55 /* Macros for calculating LO, HI, HA, HIGHER, HIGHERA, HIGHEST,
58 /* #lo(value) denotes the least significant 16 bits of the indicated. */
59 #define PPC_LO(v) ((v) & 0xffff)
61 /* #hi(value) denotes bits 16 through 31 of the indicated value. */
62 #define PPC_HI(v) (((v) >> 16) & 0xffff)
64 /* #ha(value) denotes the high adjusted value: bits 16 through 31 of
65 the indicated value, compensating for #lo() being treated as a
67 #define PPC_HA(v) PPC_HI ((v) + 0x8000)
69 /* #higher(value) denotes bits 32 through 47 of the indicated value. */
70 #define PPC_HIGHER(v) (((v) >> 16 >> 16) & 0xffff)
72 /* #highera(value) denotes bits 32 through 47 of the indicated value,
73 compensating for #lo() being treated as a signed number. */
74 #define PPC_HIGHERA(v) PPC_HIGHER ((v) + 0x8000)
76 /* #highest(value) denotes bits 48 through 63 of the indicated value. */
77 #define PPC_HIGHEST(v) (((v) >> 24 >> 24) & 0xffff)
79 /* #highesta(value) denotes bits 48 through 63 of the indicated value,
80 compensating for #lo being treated as a signed number. */
81 #define PPC_HIGHESTA(v) PPC_HIGHEST ((v) + 0x8000)
83 #define SEX16(val) ((((val) & 0xffff) ^ 0x8000) - 0x8000)
85 static bfd_boolean reg_names_p = TARGET_REG_NAMES_P;
87 static void ppc_macro (char *, const struct powerpc_macro *);
88 static void ppc_byte (int);
90 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
91 static void ppc_tc (int);
92 static void ppc_machine (int);
96 static void ppc_comm (int);
97 static void ppc_bb (int);
98 static void ppc_bc (int);
99 static void ppc_bf (int);
100 static void ppc_biei (int);
101 static void ppc_bs (int);
102 static void ppc_eb (int);
103 static void ppc_ec (int);
104 static void ppc_ef (int);
105 static void ppc_es (int);
106 static void ppc_csect (int);
107 static void ppc_change_csect (symbolS *, offsetT);
108 static void ppc_function (int);
109 static void ppc_extern (int);
110 static void ppc_lglobl (int);
111 static void ppc_section (int);
112 static void ppc_named_section (int);
113 static void ppc_stabx (int);
114 static void ppc_rename (int);
115 static void ppc_toc (int);
116 static void ppc_xcoff_cons (int);
117 static void ppc_vbyte (int);
121 static void ppc_elf_cons (int);
122 static void ppc_elf_rdata (int);
123 static void ppc_elf_lcomm (int);
127 static void ppc_previous (int);
128 static void ppc_pdata (int);
129 static void ppc_ydata (int);
130 static void ppc_reldata (int);
131 static void ppc_rdata (int);
132 static void ppc_ualong (int);
133 static void ppc_znop (int);
134 static void ppc_pe_comm (int);
135 static void ppc_pe_section (int);
136 static void ppc_pe_function (int);
137 static void ppc_pe_tocd (int);
140 /* Generic assembler global variables which must be defined by all
144 /* This string holds the chars that always start a comment. If the
145 pre-processor is disabled, these aren't very useful. The macro
146 tc_comment_chars points to this. We use this, rather than the
147 usual comment_chars, so that we can switch for Solaris conventions. */
148 static const char ppc_solaris_comment_chars[] = "#!";
149 static const char ppc_eabi_comment_chars[] = "#";
151 #ifdef TARGET_SOLARIS_COMMENT
152 const char *ppc_comment_chars = ppc_solaris_comment_chars;
154 const char *ppc_comment_chars = ppc_eabi_comment_chars;
157 const char comment_chars[] = "#";
160 /* Characters which start a comment at the beginning of a line. */
161 const char line_comment_chars[] = "#";
163 /* Characters which may be used to separate multiple commands on a
165 const char line_separator_chars[] = ";";
167 /* Characters which are used to indicate an exponent in a floating
169 const char EXP_CHARS[] = "eE";
171 /* Characters which mean that a number is a floating point constant,
173 const char FLT_CHARS[] = "dD";
175 /* Anything that can start an operand needs to be mentioned here,
176 to stop the input scrubber eating whitespace. */
177 const char ppc_symbol_chars[] = "%[";
179 /* The dwarf2 data alignment, adjusted for 32 or 64 bit. */
180 int ppc_cie_data_alignment;
182 /* The type of processor we are assembling for. This is one or more
183 of the PPC_OPCODE flags defined in opcode/ppc.h. */
184 ppc_cpu_t ppc_cpu = 0;
186 /* The target specific pseudo-ops which we support. */
188 const pseudo_typeS md_pseudo_table[] =
190 /* Pseudo-ops which must be overridden. */
191 { "byte", ppc_byte, 0 },
194 /* Pseudo-ops specific to the RS/6000 XCOFF format. Some of these
195 legitimately belong in the obj-*.c file. However, XCOFF is based
196 on COFF, and is only implemented for the RS/6000. We just use
197 obj-coff.c, and add what we need here. */
198 { "comm", ppc_comm, 0 },
199 { "lcomm", ppc_comm, 1 },
203 { "bi", ppc_biei, 0 },
205 { "csect", ppc_csect, 0 },
206 { "data", ppc_section, 'd' },
210 { "ei", ppc_biei, 1 },
212 { "extern", ppc_extern, 0 },
213 { "function", ppc_function, 0 },
214 { "lglobl", ppc_lglobl, 0 },
215 { "rename", ppc_rename, 0 },
216 { "section", ppc_named_section, 0 },
217 { "stabx", ppc_stabx, 0 },
218 { "text", ppc_section, 't' },
219 { "toc", ppc_toc, 0 },
220 { "long", ppc_xcoff_cons, 2 },
221 { "llong", ppc_xcoff_cons, 3 },
222 { "word", ppc_xcoff_cons, 1 },
223 { "short", ppc_xcoff_cons, 1 },
224 { "vbyte", ppc_vbyte, 0 },
228 { "llong", ppc_elf_cons, 8 },
229 { "quad", ppc_elf_cons, 8 },
230 { "long", ppc_elf_cons, 4 },
231 { "word", ppc_elf_cons, 2 },
232 { "short", ppc_elf_cons, 2 },
233 { "rdata", ppc_elf_rdata, 0 },
234 { "rodata", ppc_elf_rdata, 0 },
235 { "lcomm", ppc_elf_lcomm, 0 },
239 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
240 { "previous", ppc_previous, 0 },
241 { "pdata", ppc_pdata, 0 },
242 { "ydata", ppc_ydata, 0 },
243 { "reldata", ppc_reldata, 0 },
244 { "rdata", ppc_rdata, 0 },
245 { "ualong", ppc_ualong, 0 },
246 { "znop", ppc_znop, 0 },
247 { "comm", ppc_pe_comm, 0 },
248 { "lcomm", ppc_pe_comm, 1 },
249 { "section", ppc_pe_section, 0 },
250 { "function", ppc_pe_function,0 },
251 { "tocd", ppc_pe_tocd, 0 },
254 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
256 { "machine", ppc_machine, 0 },
263 /* Predefined register names if -mregnames (or default for Windows NT).
264 In general, there are lots of them, in an attempt to be compatible
265 with a number of other Windows NT assemblers. */
267 /* Structure to hold information about predefined registers. */
274 /* List of registers that are pre-defined:
276 Each general register has predefined names of the form:
277 1. r<reg_num> which has the value <reg_num>.
278 2. r.<reg_num> which has the value <reg_num>.
280 Each floating point register has predefined names of the form:
281 1. f<reg_num> which has the value <reg_num>.
282 2. f.<reg_num> which has the value <reg_num>.
284 Each vector unit register has predefined names of the form:
285 1. v<reg_num> which has the value <reg_num>.
286 2. v.<reg_num> which has the value <reg_num>.
288 Each condition register has predefined names of the form:
289 1. cr<reg_num> which has the value <reg_num>.
290 2. cr.<reg_num> which has the value <reg_num>.
292 There are individual registers as well:
293 sp or r.sp has the value 1
294 rtoc or r.toc has the value 2
295 fpscr has the value 0
301 dsisr has the value 18
303 sdr1 has the value 25
304 srr0 has the value 26
305 srr1 has the value 27
307 The table is sorted. Suitable for searching by a binary search. */
309 static const struct pd_reg pre_defined_registers[] =
311 { "cr.0", 0 }, /* Condition Registers */
331 { "dar", 19 }, /* Data Access Register */
332 { "dec", 22 }, /* Decrementer */
333 { "dsisr", 18 }, /* Data Storage Interrupt Status Register */
335 { "f.0", 0 }, /* Floating point registers */
362 { "f.32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
428 { "f32", 32 }, /* Extended floating point scalar registers (ISA 2.06). */
469 /* Quantization registers used with pair single instructions. */
487 { "lr", 8 }, /* Link Register */
491 { "r.0", 0 }, /* General Purpose Registers */
524 { "r.sp", 1 }, /* Stack Pointer */
526 { "r.toc", 2 }, /* Pointer to the table of contents */
528 { "r0", 0 }, /* More general purpose registers */
561 { "rtoc", 2 }, /* Table of contents */
563 { "sdr1", 25 }, /* Storage Description Register 1 */
567 { "srr0", 26 }, /* Machine Status Save/Restore Register 0 */
568 { "srr1", 27 }, /* Machine Status Save/Restore Register 1 */
570 { "v.0", 0 }, /* Vector (Altivec/VMX) registers */
636 { "vs.0", 0 }, /* Vector Scalar (VSX) registers (ISA 2.06). */
770 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
772 /* Given NAME, find the register number associated with that name, return
773 the integer value associated with the given name or -1 on failure. */
776 reg_name_search (const struct pd_reg *regs, int regcount, const char *name)
778 int middle, low, high;
786 middle = (low + high) / 2;
787 cmp = strcasecmp (name, regs[middle].name);
793 return regs[middle].value;
801 * Summary of register_name.
803 * in: Input_line_pointer points to 1st char of operand.
805 * out: A expressionS.
806 * The operand may have been a register: in this case, X_op == O_register,
807 * X_add_number is set to the register number, and truth is returned.
808 * Input_line_pointer->(next non-blank) char after operand, or is in its
813 register_name (expressionS *expressionP)
820 /* Find the spelling of the operand. */
821 start = name = input_line_pointer;
822 if (name[0] == '%' && ISALPHA (name[1]))
823 name = ++input_line_pointer;
825 else if (!reg_names_p || !ISALPHA (name[0]))
828 c = get_symbol_end ();
829 reg_number = reg_name_search (pre_defined_registers, REG_NAME_CNT, name);
831 /* Put back the delimiting char. */
832 *input_line_pointer = c;
834 /* Look to see if it's in the register table. */
837 expressionP->X_op = O_register;
838 expressionP->X_add_number = reg_number;
840 /* Make the rest nice. */
841 expressionP->X_add_symbol = NULL;
842 expressionP->X_op_symbol = NULL;
846 /* Reset the line as if we had not done anything. */
847 input_line_pointer = start;
851 /* This function is called for each symbol seen in an expression. It
852 handles the special parsing which PowerPC assemblers are supposed
853 to use for condition codes. */
855 /* Whether to do the special parsing. */
856 static bfd_boolean cr_operand;
858 /* Names to recognize in a condition code. This table is sorted. */
859 static const struct pd_reg cr_names[] =
876 /* Parsing function. This returns non-zero if it recognized an
880 ppc_parse_name (const char *name, expressionS *exp)
889 val = reg_name_search (cr_names, sizeof cr_names / sizeof cr_names[0],
894 exp->X_op = O_constant;
895 exp->X_add_number = val;
900 /* Local variables. */
902 /* Whether to target xcoff64/elf64. */
903 static unsigned int ppc_obj64 = BFD_DEFAULT_TARGET_SIZE == 64;
905 /* Opcode hash table. */
906 static struct hash_control *ppc_hash;
908 /* Macro hash table. */
909 static struct hash_control *ppc_macro_hash;
912 /* What type of shared library support to use. */
913 static enum { SHLIB_NONE, SHLIB_PIC, SHLIB_MRELOCATABLE } shlib = SHLIB_NONE;
915 /* Flags to set in the elf header. */
916 static flagword ppc_flags = 0;
918 /* Whether this is Solaris or not. */
919 #ifdef TARGET_SOLARIS_COMMENT
920 #define SOLARIS_P TRUE
922 #define SOLARIS_P FALSE
925 static bfd_boolean msolaris = SOLARIS_P;
930 /* The RS/6000 assembler uses the .csect pseudo-op to generate code
931 using a bunch of different sections. These assembler sections,
932 however, are all encompassed within the .text or .data sections of
933 the final output file. We handle this by using different
934 subsegments within these main segments. */
936 /* Next subsegment to allocate within the .text segment. */
937 static subsegT ppc_text_subsegment = 2;
939 /* Linked list of csects in the text section. */
940 static symbolS *ppc_text_csects;
942 /* Next subsegment to allocate within the .data segment. */
943 static subsegT ppc_data_subsegment = 2;
945 /* Linked list of csects in the data section. */
946 static symbolS *ppc_data_csects;
948 /* The current csect. */
949 static symbolS *ppc_current_csect;
951 /* The RS/6000 assembler uses a TOC which holds addresses of functions
952 and variables. Symbols are put in the TOC with the .tc pseudo-op.
953 A special relocation is used when accessing TOC entries. We handle
954 the TOC as a subsegment within the .data segment. We set it up if
955 we see a .toc pseudo-op, and save the csect symbol here. */
956 static symbolS *ppc_toc_csect;
958 /* The first frag in the TOC subsegment. */
959 static fragS *ppc_toc_frag;
961 /* The first frag in the first subsegment after the TOC in the .data
962 segment. NULL if there are no subsegments after the TOC. */
963 static fragS *ppc_after_toc_frag;
965 /* The current static block. */
966 static symbolS *ppc_current_block;
968 /* The COFF debugging section; set by md_begin. This is not the
969 .debug section, but is instead the secret BFD section which will
970 cause BFD to set the section number of a symbol to N_DEBUG. */
971 static asection *ppc_coff_debug_section;
973 #endif /* OBJ_XCOFF */
977 /* Various sections that we need for PE coff support. */
978 static segT ydata_section;
979 static segT pdata_section;
980 static segT reldata_section;
981 static segT rdata_section;
982 static segT tocdata_section;
984 /* The current section and the previous section. See ppc_previous. */
985 static segT ppc_previous_section;
986 static segT ppc_current_section;
991 symbolS *GOT_symbol; /* Pre-defined "_GLOBAL_OFFSET_TABLE" */
992 #define PPC_APUINFO_ISEL 0x40
993 #define PPC_APUINFO_PMR 0x41
994 #define PPC_APUINFO_RFMCI 0x42
995 #define PPC_APUINFO_CACHELCK 0x43
996 #define PPC_APUINFO_SPE 0x100
997 #define PPC_APUINFO_EFS 0x101
998 #define PPC_APUINFO_BRLOCK 0x102
1001 * We keep a list of APUinfo
1003 unsigned long *ppc_apuinfo_list;
1004 unsigned int ppc_apuinfo_num;
1005 unsigned int ppc_apuinfo_num_alloc;
1006 #endif /* OBJ_ELF */
1009 const char *const md_shortopts = "b:l:usm:K:VQ:";
1011 const char *const md_shortopts = "um:";
1013 const struct option md_longopts[] = {
1014 {NULL, no_argument, NULL, 0}
1016 const size_t md_longopts_size = sizeof (md_longopts);
1019 md_parse_option (int c, char *arg)
1026 /* -u means that any undefined symbols should be treated as
1027 external, which is the default for gas anyhow. */
1032 /* Solaris as takes -le (presumably for little endian). For completeness
1033 sake, recognize -be also. */
1034 if (strcmp (arg, "e") == 0)
1036 target_big_endian = 0;
1037 set_target_endian = 1;
1045 if (strcmp (arg, "e") == 0)
1047 target_big_endian = 1;
1048 set_target_endian = 1;
1056 /* Recognize -K PIC. */
1057 if (strcmp (arg, "PIC") == 0 || strcmp (arg, "pic") == 0)
1060 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1068 /* a64 and a32 determine whether to use XCOFF64 or XCOFF32. */
1070 if (strcmp (arg, "64") == 0)
1075 as_fatal (_("%s unsupported"), "-a64");
1078 else if (strcmp (arg, "32") == 0)
1085 if ((new_cpu = ppc_parse_cpu (ppc_cpu, arg)) != 0)
1088 else if (strcmp (arg, "regnames") == 0)
1091 else if (strcmp (arg, "no-regnames") == 0)
1092 reg_names_p = FALSE;
1095 /* -mrelocatable/-mrelocatable-lib -- warn about initializations
1096 that require relocation. */
1097 else if (strcmp (arg, "relocatable") == 0)
1099 shlib = SHLIB_MRELOCATABLE;
1100 ppc_flags |= EF_PPC_RELOCATABLE;
1103 else if (strcmp (arg, "relocatable-lib") == 0)
1105 shlib = SHLIB_MRELOCATABLE;
1106 ppc_flags |= EF_PPC_RELOCATABLE_LIB;
1109 /* -memb, set embedded bit. */
1110 else if (strcmp (arg, "emb") == 0)
1111 ppc_flags |= EF_PPC_EMB;
1113 /* -mlittle/-mbig set the endianess. */
1114 else if (strcmp (arg, "little") == 0
1115 || strcmp (arg, "little-endian") == 0)
1117 target_big_endian = 0;
1118 set_target_endian = 1;
1121 else if (strcmp (arg, "big") == 0 || strcmp (arg, "big-endian") == 0)
1123 target_big_endian = 1;
1124 set_target_endian = 1;
1127 else if (strcmp (arg, "solaris") == 0)
1130 ppc_comment_chars = ppc_solaris_comment_chars;
1133 else if (strcmp (arg, "no-solaris") == 0)
1136 ppc_comment_chars = ppc_eabi_comment_chars;
1141 as_bad (_("invalid switch -m%s"), arg);
1147 /* -V: SVR4 argument to print version ID. */
1149 print_version_id ();
1152 /* -Qy, -Qn: SVR4 arguments controlling whether a .comment section
1153 should be emitted or not. FIXME: Not implemented. */
1157 /* Solaris takes -s to specify that .stabs go in a .stabs section,
1158 rather than .stabs.excl, which is ignored by the linker.
1159 FIXME: Not implemented. */
1175 md_show_usage (FILE *stream)
1177 fprintf (stream, _("\
1179 -a32 generate ELF32/XCOFF32\n\
1180 -a64 generate ELF64/XCOFF64\n\
1182 -mpwrx, -mpwr2 generate code for POWER/2 (RIOS2)\n\
1183 -mpwr generate code for POWER (RIOS1)\n\
1184 -m601 generate code for PowerPC 601\n\
1185 -mppc, -mppc32, -m603, -m604\n\
1186 generate code for PowerPC 603/604\n\
1187 -m403 generate code for PowerPC 403\n\
1188 -m405 generate code for PowerPC 405\n\
1189 -m440 generate code for PowerPC 440\n\
1190 -m464 generate code for PowerPC 464\n\
1191 -m476 generate code for PowerPC 476\n\
1192 -m7400, -m7410, -m7450, -m7455\n\
1193 generate code for PowerPC 7400/7410/7450/7455\n\
1194 -m750cl generate code for PowerPC 750cl\n"));
1195 fprintf (stream, _("\
1196 -mppc64, -m620 generate code for PowerPC 620/625/630\n\
1197 -mppc64bridge generate code for PowerPC 64, including bridge insns\n\
1198 -mbooke generate code for 32-bit PowerPC BookE\n\
1199 -ma2 generate code for A2 architecture\n\
1200 -mpower4 generate code for Power4 architecture\n\
1201 -mpower5 generate code for Power5 architecture\n\
1202 -mpower6 generate code for Power6 architecture\n\
1203 -mpower7 generate code for Power7 architecture\n\
1204 -mcell generate code for Cell Broadband Engine architecture\n\
1205 -mcom generate code Power/PowerPC common instructions\n\
1206 -many generate code for any architecture (PWR/PWRX/PPC)\n"));
1207 fprintf (stream, _("\
1208 -maltivec generate code for AltiVec\n\
1209 -mvsx generate code for Vector-Scalar (VSX) instructions\n\
1210 -me300 generate code for PowerPC e300 family\n\
1211 -me500, -me500x2 generate code for Motorola e500 core complex\n\
1212 -me500mc, generate code for Freescale e500mc core complex\n\
1213 -me500mc64, generate code for Freescale e500mc64 core complex\n\
1214 -mspe generate code for Motorola SPE instructions\n\
1215 -mregnames Allow symbolic names for registers\n\
1216 -mno-regnames Do not allow symbolic names for registers\n"));
1218 fprintf (stream, _("\
1219 -mrelocatable support for GCC's -mrelocatble option\n\
1220 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1221 -memb set PPC_EMB bit in ELF flags\n\
1222 -mlittle, -mlittle-endian, -l, -le\n\
1223 generate code for a little endian machine\n\
1224 -mbig, -mbig-endian, -b, -be\n\
1225 generate code for a big endian machine\n\
1226 -msolaris generate code for Solaris\n\
1227 -mno-solaris do not generate code for Solaris\n\
1228 -V print assembler version number\n\
1229 -Qy, -Qn ignored\n"));
1233 /* Set ppc_cpu if it is not already set. */
1238 const char *default_os = TARGET_OS;
1239 const char *default_cpu = TARGET_CPU;
1241 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1244 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1245 else if (strncmp (default_os, "aix", 3) == 0
1246 && default_os[3] >= '4' && default_os[3] <= '9')
1247 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1248 else if (strncmp (default_os, "aix3", 4) == 0)
1249 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1250 else if (strcmp (default_cpu, "rs6000") == 0)
1251 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1252 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1253 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1255 as_fatal (_("Unknown default cpu = %s, os = %s"),
1256 default_cpu, default_os);
1260 /* Figure out the BFD architecture to use. This function and ppc_mach
1261 are called well before md_begin, when the output file is opened. */
1263 enum bfd_architecture
1266 const char *default_cpu = TARGET_CPU;
1269 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1270 return bfd_arch_powerpc;
1271 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1272 return bfd_arch_rs6000;
1273 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1275 if (strcmp (default_cpu, "rs6000") == 0)
1276 return bfd_arch_rs6000;
1277 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1278 return bfd_arch_powerpc;
1281 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1282 return bfd_arch_unknown;
1289 return bfd_mach_ppc64;
1290 else if (ppc_arch () == bfd_arch_rs6000)
1291 return bfd_mach_rs6k;
1293 return bfd_mach_ppc;
1297 ppc_target_format (void)
1301 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1303 return "xcoff-powermac";
1306 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1308 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1314 return "elf32-powerpc-vxworks";
1316 return (target_big_endian
1317 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1318 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1323 /* Insert opcodes and macros into hash tables. Called at startup and
1327 ppc_setup_opcodes (void)
1329 const struct powerpc_opcode *op;
1330 const struct powerpc_opcode *op_end;
1331 const struct powerpc_macro *macro;
1332 const struct powerpc_macro *macro_end;
1333 bfd_boolean bad_insn = FALSE;
1335 if (ppc_hash != NULL)
1336 hash_die (ppc_hash);
1337 if (ppc_macro_hash != NULL)
1338 hash_die (ppc_macro_hash);
1340 /* Insert the opcodes into a hash table. */
1341 ppc_hash = hash_new ();
1343 if (ENABLE_CHECKING)
1347 /* Check operand masks. Code here and in the disassembler assumes
1348 all the 1's in the mask are contiguous. */
1349 for (i = 0; i < num_powerpc_operands; ++i)
1351 unsigned long mask = powerpc_operands[i].bitm;
1352 unsigned long right_bit;
1355 right_bit = mask & -mask;
1357 right_bit = mask & -mask;
1358 if (mask != right_bit)
1360 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1363 for (j = i + 1; j < num_powerpc_operands; ++j)
1364 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1365 sizeof (powerpc_operands[0])) == 0)
1367 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1374 op_end = powerpc_opcodes + powerpc_num_opcodes;
1375 for (op = powerpc_opcodes; op < op_end; op++)
1377 if (ENABLE_CHECKING)
1379 const unsigned char *o;
1380 unsigned long omask = op->mask;
1382 if (op != powerpc_opcodes)
1384 /* The major opcodes had better be sorted. Code in the
1385 disassembler assumes the insns are sorted according to
1387 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1389 as_bad (_("major opcode is not sorted for %s"),
1394 /* Warn if the table isn't more strictly ordered.
1395 Unfortunately it doesn't seem possible to order the
1396 table on much more than the major opcode, which makes
1397 it difficult to implement a binary search in the
1398 disassembler. The problem is that we have multiple
1399 ways to disassemble instructions, and we usually want
1400 to choose a more specific form (with more bits set in
1401 the opcode) than a more general form. eg. all of the
1402 following are equivalent:
1403 bne label # opcode = 0x40820000, mask = 0xff830003
1404 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1405 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1407 There are also cases where the table needs to be out
1408 of order to disassemble the correct instruction for
1409 processor variants. */
1412 unsigned long t1 = op[0].opcode;
1413 unsigned long t2 = op[-1].opcode;
1415 if (((t1 ^ t2) & 0xfc0007ff) == 0
1416 && (t1 & 0xfc0006df) == 0x7c000286)
1418 /* spr field is split. */
1419 t1 = ((t1 & ~0x1ff800)
1420 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1421 t2 = ((t2 & ~0x1ff800)
1422 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1425 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1426 op[0].name, op[0].opcode, op[0].mask,
1427 op[-1].name, op[-1].opcode, op[-1].mask);
1431 /* The mask had better not trim off opcode bits. */
1432 if ((op->opcode & omask) != op->opcode)
1434 as_bad (_("mask trims opcode bits for %s"),
1439 /* The operands must not overlap the opcode or each other. */
1440 for (o = op->operands; *o; ++o)
1441 if (*o >= num_powerpc_operands)
1443 as_bad (_("operand index error for %s"),
1449 const struct powerpc_operand *operand = &powerpc_operands[*o];
1450 if (operand->shift >= 0)
1452 unsigned long mask = operand->bitm << operand->shift;
1455 as_bad (_("operand %d overlap in %s"),
1456 (int) (o - op->operands), op->name);
1464 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1465 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1466 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1467 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1468 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1469 && !(ppc_cpu & op->deprecated))
1473 retval = hash_insert (ppc_hash, op->name, (void *) op);
1476 /* Ignore Power duplicates for -m601. */
1477 if ((ppc_cpu & PPC_OPCODE_601) != 0
1478 && (op->flags & PPC_OPCODE_POWER) != 0)
1481 as_bad (_("duplicate instruction %s"),
1488 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1489 for (op = powerpc_opcodes; op < op_end; op++)
1490 hash_insert (ppc_hash, op->name, (void *) op);
1492 /* Insert the macros into a hash table. */
1493 ppc_macro_hash = hash_new ();
1495 macro_end = powerpc_macros + powerpc_num_macros;
1496 for (macro = powerpc_macros; macro < macro_end; macro++)
1498 if ((macro->flags & ppc_cpu) != 0)
1502 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1503 if (retval != (const char *) NULL)
1505 as_bad (_("duplicate macro %s"), macro->name);
1515 /* This function is called when the assembler starts up. It is called
1516 after the options have been parsed and the output file has been
1524 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1527 /* Set the ELF flags if desired. */
1528 if (ppc_flags && !msolaris)
1529 bfd_set_private_flags (stdoutput, ppc_flags);
1532 ppc_setup_opcodes ();
1534 /* Tell the main code what the endianness is if it is not overridden
1536 if (!set_target_endian)
1538 set_target_endian = 1;
1539 target_big_endian = PPC_BIG_ENDIAN;
1543 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1545 /* Create dummy symbols to serve as initial csects. This forces the
1546 text csects to precede the data csects. These symbols will not
1548 ppc_text_csects = symbol_make ("dummy\001");
1549 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1550 ppc_data_csects = symbol_make ("dummy\001");
1551 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1556 ppc_current_section = text_section;
1557 ppc_previous_section = 0;
1566 if (ppc_apuinfo_list == NULL)
1569 /* Ok, so write the section info out. We have this layout:
1573 0 8 length of "APUinfo\0"
1574 4 (n*4) number of APU's (4 bytes each)
1577 20 APU#1 first APU's info
1578 24 APU#2 second APU's info
1583 asection *seg = now_seg;
1584 subsegT subseg = now_subseg;
1585 asection *apuinfo_secp = (asection *) NULL;
1588 /* Create the .PPC.EMB.apuinfo section. */
1589 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1590 bfd_set_section_flags (stdoutput,
1592 SEC_HAS_CONTENTS | SEC_READONLY);
1595 md_number_to_chars (p, (valueT) 8, 4);
1598 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1601 md_number_to_chars (p, (valueT) 2, 4);
1604 strcpy (p, "APUinfo");
1606 for (i = 0; i < ppc_apuinfo_num; i++)
1609 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1612 frag_align (2, 0, 0);
1614 /* We probably can't restore the current segment, for there likely
1617 subseg_set (seg, subseg);
1622 /* Insert an operand value into an instruction. */
1624 static unsigned long
1625 ppc_insert_operand (unsigned long insn,
1626 const struct powerpc_operand *operand,
1632 long min, max, right;
1634 max = operand->bitm;
1638 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1640 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1641 max = (max >> 1) & -right;
1642 min = ~max & -right;
1645 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1648 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1657 /* Some people write constants with the sign extension done by
1658 hand but only up to 32 bits. This shouldn't really be valid,
1659 but, to permit this code to assemble on a 64-bit host, we
1660 sign extend the 32-bit value to 64 bits if so doing makes the
1663 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1664 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1665 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1666 val = val - 0x80000000 - 0x80000000;
1668 /* Similarly, people write expressions like ~(1<<15), and expect
1669 this to be OK for a 32-bit unsigned value. */
1671 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1672 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1673 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1674 val = val + 0x80000000 + 0x80000000;
1678 || (val & (right - 1)) != 0)
1679 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1682 if (operand->insert)
1687 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1688 if (errmsg != (const char *) NULL)
1689 as_bad_where (file, line, "%s", errmsg);
1692 insn |= ((long) val & operand->bitm) << operand->shift;
1699 /* Parse @got, etc. and return the desired relocation. */
1700 static bfd_reloc_code_real_type
1701 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1705 unsigned int length : 8;
1706 unsigned int valid32 : 1;
1707 unsigned int valid64 : 1;
1716 const struct map_bfd *ptr;
1718 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1719 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1720 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1722 static const struct map_bfd mapping[] = {
1723 MAP ("l", BFD_RELOC_LO16),
1724 MAP ("h", BFD_RELOC_HI16),
1725 MAP ("ha", BFD_RELOC_HI16_S),
1726 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1727 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1728 MAP ("got", BFD_RELOC_16_GOTOFF),
1729 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1730 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1731 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1732 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1733 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1734 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1735 MAP ("copy", BFD_RELOC_PPC_COPY),
1736 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1737 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1738 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1739 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1740 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1741 MAP ("tls", BFD_RELOC_PPC_TLS),
1742 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1743 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1744 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1745 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1746 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1747 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1748 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1749 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1750 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1751 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1752 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1753 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1754 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1755 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1756 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1757 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1758 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1759 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1760 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1761 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1762 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1763 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1764 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1765 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1766 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1767 MAP32 ("fixup", BFD_RELOC_CTOR),
1768 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1769 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1770 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1771 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1772 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1773 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1774 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1775 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1776 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1777 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1778 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1779 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1780 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1781 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1782 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1783 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1784 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1785 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1786 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1787 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1788 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1789 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1790 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1791 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1792 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1793 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1794 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1795 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1796 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1797 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1798 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1799 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1800 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1801 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1802 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1803 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1804 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1805 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1806 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1807 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1808 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1812 return BFD_RELOC_UNUSED;
1814 for (ch = *str, str2 = ident;
1815 (str2 < ident + sizeof (ident) - 1
1816 && (ISALNUM (ch) || ch == '@'));
1819 *str2++ = TOLOWER (ch);
1826 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1827 if (ch == ptr->string[0]
1828 && len == ptr->length
1829 && memcmp (ident, ptr->string, ptr->length) == 0
1830 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1832 int reloc = ptr->reloc;
1834 if (!ppc_obj64 && exp_p->X_add_number != 0)
1838 case BFD_RELOC_16_GOTOFF:
1839 case BFD_RELOC_LO16_GOTOFF:
1840 case BFD_RELOC_HI16_GOTOFF:
1841 case BFD_RELOC_HI16_S_GOTOFF:
1842 as_warn (_("identifier+constant@got means "
1843 "identifier@got+constant"));
1846 case BFD_RELOC_PPC_GOT_TLSGD16:
1847 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
1848 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
1849 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
1850 case BFD_RELOC_PPC_GOT_TLSLD16:
1851 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
1852 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
1853 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
1854 case BFD_RELOC_PPC_GOT_DTPREL16:
1855 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
1856 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
1857 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
1858 case BFD_RELOC_PPC_GOT_TPREL16:
1859 case BFD_RELOC_PPC_GOT_TPREL16_LO:
1860 case BFD_RELOC_PPC_GOT_TPREL16_HI:
1861 case BFD_RELOC_PPC_GOT_TPREL16_HA:
1862 as_bad (_("symbol+offset not supported for got tls"));
1867 /* Now check for identifier@suffix+constant. */
1868 if (*str == '-' || *str == '+')
1870 char *orig_line = input_line_pointer;
1871 expressionS new_exp;
1873 input_line_pointer = str;
1874 expression (&new_exp);
1875 if (new_exp.X_op == O_constant)
1877 exp_p->X_add_number += new_exp.X_add_number;
1878 str = input_line_pointer;
1881 if (&input_line_pointer != str_p)
1882 input_line_pointer = orig_line;
1886 if (reloc == (int) BFD_RELOC_PPC64_TOC
1887 && exp_p->X_op == O_symbol
1888 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1890 /* Change the symbol so that the dummy .TOC. symbol can be
1891 omitted from the object file. */
1892 exp_p->X_add_symbol = &abs_symbol;
1895 return (bfd_reloc_code_real_type) reloc;
1898 return BFD_RELOC_UNUSED;
1901 /* Like normal .long/.short/.word, except support @got, etc.
1902 Clobbers input_line_pointer, checks end-of-line. */
1904 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1907 bfd_reloc_code_real_type reloc;
1909 if (is_it_end_of_statement ())
1911 demand_empty_rest_of_line ();
1918 if (exp.X_op == O_symbol
1919 && *input_line_pointer == '@'
1920 && (reloc = ppc_elf_suffix (&input_line_pointer,
1921 &exp)) != BFD_RELOC_UNUSED)
1923 reloc_howto_type *reloc_howto;
1926 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1927 size = bfd_get_reloc_size (reloc_howto);
1931 as_bad (_("%s relocations do not fit in %d bytes\n"),
1932 reloc_howto->name, nbytes);
1939 p = frag_more (nbytes);
1941 if (target_big_endian)
1942 offset = nbytes - size;
1943 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1948 emit_expr (&exp, (unsigned int) nbytes);
1950 while (*input_line_pointer++ == ',');
1952 /* Put terminator back into stream. */
1953 input_line_pointer--;
1954 demand_empty_rest_of_line ();
1957 /* Solaris pseduo op to change to the .rodata section. */
1959 ppc_elf_rdata (int xxx)
1961 char *save_line = input_line_pointer;
1962 static char section[] = ".rodata\n";
1964 /* Just pretend this is .section .rodata */
1965 input_line_pointer = section;
1966 obj_elf_section (xxx);
1968 input_line_pointer = save_line;
1971 /* Pseudo op to make file scope bss items. */
1973 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1986 name = input_line_pointer;
1987 c = get_symbol_end ();
1989 /* just after name is now '\0'. */
1990 p = input_line_pointer;
1993 if (*input_line_pointer != ',')
1995 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1996 ignore_rest_of_line ();
2000 input_line_pointer++; /* skip ',' */
2001 if ((size = get_absolute_expression ()) < 0)
2003 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2004 ignore_rest_of_line ();
2008 /* The third argument to .lcomm is the alignment. */
2009 if (*input_line_pointer != ',')
2013 ++input_line_pointer;
2014 align = get_absolute_expression ();
2017 as_warn (_("ignoring bad alignment"));
2023 symbolP = symbol_find_or_make (name);
2026 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2028 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
2029 S_GET_NAME (symbolP));
2030 ignore_rest_of_line ();
2034 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2036 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2037 S_GET_NAME (symbolP),
2038 (long) S_GET_VALUE (symbolP),
2041 ignore_rest_of_line ();
2047 old_subsec = now_subseg;
2050 /* Convert to a power of 2 alignment. */
2051 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2054 as_bad (_("Common alignment not a power of 2"));
2055 ignore_rest_of_line ();
2062 record_alignment (bss_section, align2);
2063 subseg_set (bss_section, 0);
2065 frag_align (align2, 0, 0);
2066 if (S_GET_SEGMENT (symbolP) == bss_section)
2067 symbol_get_frag (symbolP)->fr_symbol = 0;
2068 symbol_set_frag (symbolP, frag_now);
2069 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2072 S_SET_SIZE (symbolP, size);
2073 S_SET_SEGMENT (symbolP, bss_section);
2074 subseg_set (old_sec, old_subsec);
2075 demand_empty_rest_of_line ();
2078 /* Validate any relocations emitted for -mrelocatable, possibly adding
2079 fixups for word relocations in writable segments, so we can adjust
2082 ppc_elf_validate_fix (fixS *fixp, segT seg)
2084 if (fixp->fx_done || fixp->fx_pcrel)
2093 case SHLIB_MRELOCATABLE:
2094 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2095 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2096 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2097 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2098 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2099 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2100 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2101 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2102 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2103 && (seg->flags & SEC_LOAD) != 0
2104 && strcmp (segment_name (seg), ".got2") != 0
2105 && strcmp (segment_name (seg), ".dtors") != 0
2106 && strcmp (segment_name (seg), ".ctors") != 0
2107 && strcmp (segment_name (seg), ".fixup") != 0
2108 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2109 && strcmp (segment_name (seg), ".eh_frame") != 0
2110 && strcmp (segment_name (seg), ".ex_shared") != 0)
2112 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2113 || fixp->fx_r_type != BFD_RELOC_CTOR)
2115 as_bad_where (fixp->fx_file, fixp->fx_line,
2116 _("Relocation cannot be done when using -mrelocatable"));
2123 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2124 function descriptor sym if the corresponding code sym is used. */
2127 ppc_frob_file_before_adjust (void)
2135 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2142 name = S_GET_NAME (symp);
2146 if (! S_IS_WEAK (symp)
2147 || S_IS_DEFINED (symp))
2150 len = strlen (name) + 1;
2151 dotname = xmalloc (len + 1);
2153 memcpy (dotname + 1, name, len);
2154 dotsym = symbol_find_noref (dotname, 1);
2156 if (dotsym != NULL && (symbol_used_p (dotsym)
2157 || symbol_used_in_reloc_p (dotsym)))
2158 symbol_mark_used (symp);
2162 toc = bfd_get_section_by_name (stdoutput, ".toc");
2164 && bfd_section_size (stdoutput, toc) > 0x10000)
2165 as_warn (_("TOC section size exceeds 64k"));
2167 /* Don't emit .TOC. symbol. */
2168 symp = symbol_find (".TOC.");
2170 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2172 #endif /* OBJ_ELF */
2177 * Summary of parse_toc_entry.
2179 * in: Input_line_pointer points to the '[' in one of:
2181 * [toc] [tocv] [toc32] [toc64]
2183 * Anything else is an error of one kind or another.
2186 * return value: success or failure
2187 * toc_kind: kind of toc reference
2188 * input_line_pointer:
2189 * success: first char after the ']'
2190 * failure: unchanged
2194 * [toc] - rv == success, toc_kind = default_toc
2195 * [tocv] - rv == success, toc_kind = data_in_toc
2196 * [toc32] - rv == success, toc_kind = must_be_32
2197 * [toc64] - rv == success, toc_kind = must_be_64
2201 enum toc_size_qualifier
2203 default_toc, /* The toc cell constructed should be the system default size */
2204 data_in_toc, /* This is a direct reference to a toc cell */
2205 must_be_32, /* The toc cell constructed must be 32 bits wide */
2206 must_be_64 /* The toc cell constructed must be 64 bits wide */
2210 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2215 enum toc_size_qualifier t;
2217 /* Save the input_line_pointer. */
2218 start = input_line_pointer;
2220 /* Skip over the '[' , and whitespace. */
2221 ++input_line_pointer;
2224 /* Find the spelling of the operand. */
2225 toc_spec = input_line_pointer;
2226 c = get_symbol_end ();
2228 if (strcmp (toc_spec, "toc") == 0)
2232 else if (strcmp (toc_spec, "tocv") == 0)
2236 else if (strcmp (toc_spec, "toc32") == 0)
2240 else if (strcmp (toc_spec, "toc64") == 0)
2246 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2247 *input_line_pointer = c;
2248 input_line_pointer = start;
2252 /* Now find the ']'. */
2253 *input_line_pointer = c;
2255 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2256 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2260 as_bad (_("syntax error: expected `]', found `%c'"), c);
2261 input_line_pointer = start;
2272 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2274 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2278 /* Check we don't already exist. */
2279 for (i = 0; i < ppc_apuinfo_num; i++)
2280 if (ppc_apuinfo_list[i] == APUID (apu, version))
2283 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2285 if (ppc_apuinfo_num_alloc == 0)
2287 ppc_apuinfo_num_alloc = 4;
2288 ppc_apuinfo_list = (unsigned long *)
2289 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2293 ppc_apuinfo_num_alloc += 4;
2294 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2295 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2298 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2304 /* We need to keep a list of fixups. We can't simply generate them as
2305 we go, because that would require us to first create the frag, and
2306 that would screw up references to ``.''. */
2312 bfd_reloc_code_real_type reloc;
2315 #define MAX_INSN_FIXUPS (5)
2317 /* This routine is called for each instruction to be assembled. */
2320 md_assemble (char *str)
2323 const struct powerpc_opcode *opcode;
2325 const unsigned char *opindex_ptr;
2329 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2335 bfd_reloc_code_real_type reloc;
2338 /* Get the opcode. */
2339 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2344 /* Look up the opcode in the hash table. */
2345 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2346 if (opcode == (const struct powerpc_opcode *) NULL)
2348 const struct powerpc_macro *macro;
2350 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2351 if (macro == (const struct powerpc_macro *) NULL)
2352 as_bad (_("Unrecognized opcode: `%s'"), str);
2354 ppc_macro (s, macro);
2359 insn = opcode->opcode;
2362 while (ISSPACE (*str))
2365 /* PowerPC operands are just expressions. The only real issue is
2366 that a few operand types are optional. All cases which might use
2367 an optional operand separate the operands only with commas (in some
2368 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2369 have optional operands). Most instructions with optional operands
2370 have only one. Those that have more than one optional operand can
2371 take either all their operands or none. So, before we start seriously
2372 parsing the operands, we check to see if we have optional operands,
2373 and if we do, we count the number of commas to see which operands
2374 have been omitted. */
2376 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2378 const struct powerpc_operand *operand;
2380 operand = &powerpc_operands[*opindex_ptr];
2381 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2383 unsigned int opcount;
2384 unsigned int num_operands_expected;
2386 /* There is an optional operand. Count the number of
2387 commas in the input line. */
2394 while ((s = strchr (s, ',')) != (char *) NULL)
2401 /* Compute the number of expected operands.
2402 Do not count fake operands. */
2403 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2404 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2405 ++ num_operands_expected;
2407 /* If there are fewer operands in the line then are called
2408 for by the instruction, we want to skip the optional
2410 if (opcount < num_operands_expected)
2417 /* Gather the operands. */
2421 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2423 const struct powerpc_operand *operand;
2429 if (next_opindex == 0)
2430 operand = &powerpc_operands[*opindex_ptr];
2433 operand = &powerpc_operands[next_opindex];
2438 /* If this is a fake operand, then we do not expect anything
2440 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2442 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2443 if (errmsg != (const char *) NULL)
2444 as_bad ("%s", errmsg);
2448 /* If this is an optional operand, and we are skipping it, just
2450 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2453 if (operand->insert)
2455 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2456 if (errmsg != (const char *) NULL)
2457 as_bad ("%s", errmsg);
2459 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2460 next_opindex = *opindex_ptr + 1;
2464 /* Gather the operand. */
2465 hold = input_line_pointer;
2466 input_line_pointer = str;
2469 if (*input_line_pointer == '[')
2471 /* We are expecting something like the second argument here:
2473 * lwz r4,[toc].GS.0.static_int(rtoc)
2474 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2475 * The argument following the `]' must be a symbol name, and the
2476 * register must be the toc register: 'rtoc' or '2'
2478 * The effect is to 0 as the displacement field
2479 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2480 * the appropriate variation) reloc against it based on the symbol.
2481 * The linker will build the toc, and insert the resolved toc offset.
2484 * o The size of the toc entry is currently assumed to be
2485 * 32 bits. This should not be assumed to be a hard coded
2487 * o In an effort to cope with a change from 32 to 64 bits,
2488 * there are also toc entries that are specified to be
2489 * either 32 or 64 bits:
2490 * lwz r4,[toc32].GS.0.static_int(rtoc)
2491 * lwz r4,[toc64].GS.0.static_int(rtoc)
2492 * These demand toc entries of the specified size, and the
2493 * instruction probably requires it.
2497 enum toc_size_qualifier toc_kind;
2498 bfd_reloc_code_real_type toc_reloc;
2500 /* Go parse off the [tocXX] part. */
2501 valid_toc = parse_toc_entry (&toc_kind);
2505 /* Note: message has already been issued.
2506 FIXME: what sort of recovery should we do?
2507 demand_rest_of_line (); return; ? */
2510 /* Now get the symbol following the ']'. */
2516 /* In this case, we may not have seen the symbol yet,
2517 since it is allowed to appear on a .extern or .globl
2518 or just be a label in the .data section. */
2519 toc_reloc = BFD_RELOC_PPC_TOC16;
2522 /* 1. The symbol must be defined and either in the toc
2523 section, or a global.
2524 2. The reloc generated must have the TOCDEFN flag set
2525 in upper bit mess of the reloc type.
2526 FIXME: It's a little confusing what the tocv
2527 qualifier can be used for. At the very least, I've
2528 seen three uses, only one of which I'm sure I can
2530 if (ex.X_op == O_symbol)
2532 gas_assert (ex.X_add_symbol != NULL);
2533 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2536 as_bad (_("[tocv] symbol is not a toc symbol"));
2540 toc_reloc = BFD_RELOC_PPC_TOC16;
2543 /* FIXME: these next two specifically specify 32/64 bit
2544 toc entries. We don't support them today. Is this
2545 the right way to say that? */
2546 toc_reloc = BFD_RELOC_UNUSED;
2547 as_bad (_("Unimplemented toc32 expression modifier"));
2550 /* FIXME: see above. */
2551 toc_reloc = BFD_RELOC_UNUSED;
2552 as_bad (_("Unimplemented toc64 expression modifier"));
2556 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2562 /* We need to generate a fixup for this expression. */
2563 if (fc >= MAX_INSN_FIXUPS)
2564 as_fatal (_("too many fixups"));
2566 fixups[fc].reloc = toc_reloc;
2567 fixups[fc].exp = ex;
2568 fixups[fc].opindex = *opindex_ptr;
2571 /* Ok. We've set up the fixup for the instruction. Now make it
2572 look like the constant 0 was found here. */
2574 ex.X_op = O_constant;
2575 ex.X_add_number = 0;
2576 ex.X_add_symbol = NULL;
2577 ex.X_op_symbol = NULL;
2583 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2584 || !register_name (&ex))
2586 char save_lex = lex_type['%'];
2588 if ((operand->flags & PPC_OPERAND_CR) != 0)
2591 lex_type['%'] |= LEX_BEGIN_NAME;
2595 lex_type['%'] = save_lex;
2599 str = input_line_pointer;
2600 input_line_pointer = hold;
2602 if (ex.X_op == O_illegal)
2603 as_bad (_("illegal operand"));
2604 else if (ex.X_op == O_absent)
2605 as_bad (_("missing operand"));
2606 else if (ex.X_op == O_register)
2608 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2609 ppc_cpu, (char *) NULL, 0);
2611 else if (ex.X_op == O_constant)
2614 /* Allow @HA, @L, @H on constants. */
2615 char *orig_str = str;
2617 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2624 case BFD_RELOC_LO16:
2625 /* X_unsigned is the default, so if the user has done
2626 something which cleared it, we always produce a
2628 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2629 ex.X_add_number &= 0xffff;
2631 ex.X_add_number = SEX16 (ex.X_add_number);
2634 case BFD_RELOC_HI16:
2635 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2636 ex.X_add_number = PPC_HI (ex.X_add_number);
2638 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2641 case BFD_RELOC_HI16_S:
2642 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2643 ex.X_add_number = PPC_HA (ex.X_add_number);
2645 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2648 case BFD_RELOC_PPC64_HIGHER:
2649 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2650 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2652 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2655 case BFD_RELOC_PPC64_HIGHER_S:
2656 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2657 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2659 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2662 case BFD_RELOC_PPC64_HIGHEST:
2663 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2664 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2666 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2669 case BFD_RELOC_PPC64_HIGHEST_S:
2670 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2671 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2673 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2676 #endif /* OBJ_ELF */
2677 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2678 ppc_cpu, (char *) NULL, 0);
2683 if (ex.X_op == O_symbol && str[0] == '(')
2685 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2686 if (sym_name[0] == '.')
2689 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2691 expressionS tls_exp;
2693 hold = input_line_pointer;
2694 input_line_pointer = str + 1;
2695 expression (&tls_exp);
2696 if (tls_exp.X_op == O_symbol)
2698 reloc = BFD_RELOC_UNUSED;
2699 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2701 reloc = BFD_RELOC_PPC_TLSGD;
2702 input_line_pointer += 7;
2704 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2706 reloc = BFD_RELOC_PPC_TLSLD;
2707 input_line_pointer += 7;
2709 if (reloc != BFD_RELOC_UNUSED)
2712 str = input_line_pointer;
2714 if (fc >= MAX_INSN_FIXUPS)
2715 as_fatal (_("too many fixups"));
2716 fixups[fc].exp = tls_exp;
2717 fixups[fc].opindex = *opindex_ptr;
2718 fixups[fc].reloc = reloc;
2722 input_line_pointer = hold;
2726 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2728 /* Some TLS tweaks. */
2734 case BFD_RELOC_PPC_TLS:
2735 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
2736 as_bad (_("@tls may not be used with \"%s\" operands"),
2738 else if (operand->shift != 11)
2739 as_bad (_("@tls may only be used in last operand"));
2741 insn = ppc_insert_operand (insn, operand,
2743 ppc_cpu, (char *) NULL, 0);
2746 /* We'll only use the 32 (or 64) bit form of these relocations
2747 in constants. Instructions get the 16 bit form. */
2748 case BFD_RELOC_PPC_DTPREL:
2749 reloc = BFD_RELOC_PPC_DTPREL16;
2751 case BFD_RELOC_PPC_TPREL:
2752 reloc = BFD_RELOC_PPC_TPREL16;
2756 /* For the absolute forms of branches, convert the PC
2757 relative form back into the absolute. */
2758 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2762 case BFD_RELOC_PPC_B26:
2763 reloc = BFD_RELOC_PPC_BA26;
2765 case BFD_RELOC_PPC_B16:
2766 reloc = BFD_RELOC_PPC_BA16;
2768 case BFD_RELOC_PPC_B16_BRTAKEN:
2769 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2771 case BFD_RELOC_PPC_B16_BRNTAKEN:
2772 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2780 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2785 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2787 case BFD_RELOC_LO16:
2788 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2790 case BFD_RELOC_16_GOTOFF:
2791 reloc = BFD_RELOC_PPC64_GOT16_DS;
2793 case BFD_RELOC_LO16_GOTOFF:
2794 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2796 case BFD_RELOC_LO16_PLTOFF:
2797 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2799 case BFD_RELOC_16_BASEREL:
2800 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2802 case BFD_RELOC_LO16_BASEREL:
2803 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2805 case BFD_RELOC_PPC_TOC16:
2806 reloc = BFD_RELOC_PPC64_TOC16_DS;
2808 case BFD_RELOC_PPC64_TOC16_LO:
2809 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2811 case BFD_RELOC_PPC64_PLTGOT16:
2812 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2814 case BFD_RELOC_PPC64_PLTGOT16_LO:
2815 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2817 case BFD_RELOC_PPC_DTPREL16:
2818 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2820 case BFD_RELOC_PPC_DTPREL16_LO:
2821 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2823 case BFD_RELOC_PPC_TPREL16:
2824 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2826 case BFD_RELOC_PPC_TPREL16_LO:
2827 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2829 case BFD_RELOC_PPC_GOT_DTPREL16:
2830 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2831 case BFD_RELOC_PPC_GOT_TPREL16:
2832 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2835 as_bad (_("unsupported relocation for DS offset field"));
2841 /* We need to generate a fixup for this expression. */
2842 if (fc >= MAX_INSN_FIXUPS)
2843 as_fatal (_("too many fixups"));
2844 fixups[fc].exp = ex;
2845 fixups[fc].opindex = *opindex_ptr;
2846 fixups[fc].reloc = reloc;
2852 /* We need to generate a fixup for this expression. */
2853 if (fc >= MAX_INSN_FIXUPS)
2854 as_fatal (_("too many fixups"));
2855 fixups[fc].exp = ex;
2856 fixups[fc].opindex = *opindex_ptr;
2857 fixups[fc].reloc = BFD_RELOC_UNUSED;
2860 #endif /* OBJ_ELF */
2866 /* If expecting more operands, then we want to see "),". */
2867 if (*str == endc && opindex_ptr[1] != 0)
2871 while (ISSPACE (*str));
2875 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2883 /* The call to expression should have advanced str past any
2886 && (endc != ',' || *str != '\0'))
2888 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2896 while (ISSPACE (*str))
2900 as_bad (_("junk at end of line: `%s'"), str);
2903 /* Do we need/want a APUinfo section? */
2904 if ((ppc_cpu & PPC_OPCODE_E500MC) != 0)
2906 /* These are all version "1". */
2907 if (opcode->flags & PPC_OPCODE_SPE)
2908 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2909 if (opcode->flags & PPC_OPCODE_ISEL)
2910 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2911 if (opcode->flags & PPC_OPCODE_EFS)
2912 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2913 if (opcode->flags & PPC_OPCODE_BRLOCK)
2914 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2915 if (opcode->flags & PPC_OPCODE_PMR)
2916 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2917 if (opcode->flags & PPC_OPCODE_CACHELCK)
2918 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2919 if (opcode->flags & PPC_OPCODE_RFMCI)
2920 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2924 /* Write out the instruction. */
2926 addr_mod = frag_now_fix () & 3;
2927 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2928 as_bad (_("instruction address is not a multiple of 4"));
2929 frag_now->insn_addr = addr_mod;
2930 frag_now->has_code = 1;
2931 md_number_to_chars (f, insn, 4);
2934 dwarf2_emit_insn (4);
2937 /* Create any fixups. At this point we do not use a
2938 bfd_reloc_code_real_type, but instead just use the
2939 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2940 handle fixups for any operand type, although that is admittedly
2941 not a very exciting feature. We pick a BFD reloc type in
2943 for (i = 0; i < fc; i++)
2945 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2947 reloc_howto_type *reloc_howto;
2952 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2956 size = bfd_get_reloc_size (reloc_howto);
2957 offset = target_big_endian ? (4 - size) : 0;
2959 if (size < 1 || size > 4)
2962 fixP = fix_new_exp (frag_now,
2963 f - frag_now->fr_literal + offset,
2966 reloc_howto->pc_relative,
2969 /* Turn off complaints that the addend is too large for things like
2971 switch (fixups[i].reloc)
2973 case BFD_RELOC_16_GOTOFF:
2974 case BFD_RELOC_PPC_TOC16:
2975 case BFD_RELOC_LO16:
2976 case BFD_RELOC_HI16:
2977 case BFD_RELOC_HI16_S:
2979 case BFD_RELOC_PPC64_HIGHER:
2980 case BFD_RELOC_PPC64_HIGHER_S:
2981 case BFD_RELOC_PPC64_HIGHEST:
2982 case BFD_RELOC_PPC64_HIGHEST_S:
2984 fixP->fx_no_overflow = 1;
2992 const struct powerpc_operand *operand;
2994 operand = &powerpc_operands[fixups[i].opindex];
2995 fix_new_exp (frag_now,
2996 f - frag_now->fr_literal,
2999 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
3000 ((bfd_reloc_code_real_type)
3001 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
3006 /* Handle a macro. Gather all the operands, transform them as
3007 described by the macro, and call md_assemble recursively. All the
3008 operands are separated by commas; we don't accept parentheses
3009 around operands here. */
3012 ppc_macro (char *str, const struct powerpc_macro *macro)
3023 /* Gather the users operands into the operands array. */
3028 if (count >= sizeof operands / sizeof operands[0])
3030 operands[count++] = s;
3031 s = strchr (s, ',');
3032 if (s == (char *) NULL)
3037 if (count != macro->operands)
3039 as_bad (_("wrong number of operands"));
3043 /* Work out how large the string must be (the size is unbounded
3044 because it includes user input). */
3046 format = macro->format;
3047 while (*format != '\0')
3056 arg = strtol (format + 1, &send, 10);
3057 know (send != format && arg < count);
3058 len += strlen (operands[arg]);
3063 /* Put the string together. */
3064 complete = s = (char *) alloca (len + 1);
3065 format = macro->format;
3066 while (*format != '\0')
3072 arg = strtol (format + 1, &send, 10);
3073 strcpy (s, operands[arg]);
3080 /* Assemble the constructed instruction. */
3081 md_assemble (complete);
3085 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
3088 ppc_section_letter (int letter, char **ptr_msg)
3093 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
3098 ppc_section_word (char *str, size_t len)
3100 if (len == 7 && strncmp (str, "exclude", 7) == 0)
3107 ppc_section_type (char *str, size_t len)
3109 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3116 ppc_section_flags (flagword flags, bfd_vma attr, int type)
3118 if (type == SHT_ORDERED)
3119 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3121 if (attr & SHF_EXCLUDE)
3122 flags |= SEC_EXCLUDE;
3126 #endif /* OBJ_ELF */
3129 /* Pseudo-op handling. */
3131 /* The .byte pseudo-op. This is similar to the normal .byte
3132 pseudo-op, but it can also take a single ASCII string. */
3135 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3137 if (*input_line_pointer != '\"')
3143 /* Gather characters. A real double quote is doubled. Unusual
3144 characters are not permitted. */
3145 ++input_line_pointer;
3150 c = *input_line_pointer++;
3154 if (*input_line_pointer != '\"')
3156 ++input_line_pointer;
3159 FRAG_APPEND_1_CHAR (c);
3162 demand_empty_rest_of_line ();
3167 /* XCOFF specific pseudo-op handling. */
3169 /* This is set if we are creating a .stabx symbol, since we don't want
3170 to handle symbol suffixes for such symbols. */
3171 static bfd_boolean ppc_stab_symbol;
3173 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3174 symbols in the .bss segment as though they were local common
3175 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3176 aligns .comm and .lcomm to 4 bytes. */
3179 ppc_comm (int lcomm)
3181 asection *current_seg = now_seg;
3182 subsegT current_subseg = now_subseg;
3188 symbolS *lcomm_sym = NULL;
3192 name = input_line_pointer;
3193 endc = get_symbol_end ();
3194 end_name = input_line_pointer;
3197 if (*input_line_pointer != ',')
3199 as_bad (_("missing size"));
3200 ignore_rest_of_line ();
3203 ++input_line_pointer;
3205 size = get_absolute_expression ();
3208 as_bad (_("negative size"));
3209 ignore_rest_of_line ();
3215 /* The third argument to .comm is the alignment. */
3216 if (*input_line_pointer != ',')
3220 ++input_line_pointer;
3221 align = get_absolute_expression ();
3224 as_warn (_("ignoring bad alignment"));
3239 /* The third argument to .lcomm appears to be the real local
3240 common symbol to create. References to the symbol named in
3241 the first argument are turned into references to the third
3243 if (*input_line_pointer != ',')
3245 as_bad (_("missing real symbol name"));
3246 ignore_rest_of_line ();
3249 ++input_line_pointer;
3251 lcomm_name = input_line_pointer;
3252 lcomm_endc = get_symbol_end ();
3254 lcomm_sym = symbol_find_or_make (lcomm_name);
3256 *input_line_pointer = lcomm_endc;
3260 sym = symbol_find_or_make (name);
3263 if (S_IS_DEFINED (sym)
3264 || S_GET_VALUE (sym) != 0)
3266 as_bad (_("attempt to redefine symbol"));
3267 ignore_rest_of_line ();
3271 record_alignment (bss_section, align);
3274 || ! S_IS_DEFINED (lcomm_sym))
3283 S_SET_EXTERNAL (sym);
3287 symbol_get_tc (lcomm_sym)->output = 1;
3288 def_sym = lcomm_sym;
3292 subseg_set (bss_section, 1);
3293 frag_align (align, 0, 0);
3295 symbol_set_frag (def_sym, frag_now);
3296 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3297 def_size, (char *) NULL);
3299 S_SET_SEGMENT (def_sym, bss_section);
3300 symbol_get_tc (def_sym)->align = align;
3304 /* Align the size of lcomm_sym. */
3305 symbol_get_frag (lcomm_sym)->fr_offset =
3306 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3307 &~ ((1 << align) - 1));
3308 if (align > symbol_get_tc (lcomm_sym)->align)
3309 symbol_get_tc (lcomm_sym)->align = align;
3314 /* Make sym an offset from lcomm_sym. */
3315 S_SET_SEGMENT (sym, bss_section);
3316 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3317 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3318 symbol_get_frag (lcomm_sym)->fr_offset += size;
3321 subseg_set (current_seg, current_subseg);
3323 demand_empty_rest_of_line ();
3326 /* The .csect pseudo-op. This switches us into a different
3327 subsegment. The first argument is a symbol whose value is the
3328 start of the .csect. In COFF, csect symbols get special aux
3329 entries defined by the x_csect field of union internal_auxent. The
3330 optional second argument is the alignment (the default is 2). */
3333 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3340 name = input_line_pointer;
3341 endc = get_symbol_end ();
3343 sym = symbol_find_or_make (name);
3345 *input_line_pointer = endc;
3347 if (S_GET_NAME (sym)[0] == '\0')
3349 /* An unnamed csect is assumed to be [PR]. */
3350 symbol_get_tc (sym)->symbol_class = XMC_PR;
3354 if (*input_line_pointer == ',')
3356 ++input_line_pointer;
3357 align = get_absolute_expression ();
3360 ppc_change_csect (sym, align);
3362 demand_empty_rest_of_line ();
3365 /* Change to a different csect. */
3368 ppc_change_csect (symbolS *sym, offsetT align)
3370 if (S_IS_DEFINED (sym))
3371 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3381 /* This is a new csect. We need to look at the symbol class to
3382 figure out whether it should go in the text section or the
3386 switch (symbol_get_tc (sym)->symbol_class)
3396 S_SET_SEGMENT (sym, text_section);
3397 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3398 ++ppc_text_subsegment;
3399 list_ptr = &ppc_text_csects;
3409 if (ppc_toc_csect != NULL
3410 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3411 == ppc_data_subsegment))
3413 S_SET_SEGMENT (sym, data_section);
3414 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3415 ++ppc_data_subsegment;
3416 list_ptr = &ppc_data_csects;
3422 /* We set the obstack chunk size to a small value before
3423 changing subsegments, so that we don't use a lot of memory
3424 space for what may be a small section. */
3425 hold_chunksize = chunksize;
3428 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3429 symbol_get_tc (sym)->subseg);
3431 chunksize = hold_chunksize;
3434 ppc_after_toc_frag = frag_now;
3436 record_alignment (sec, align);
3438 frag_align_code (align, 0);
3440 frag_align (align, 0, 0);
3442 symbol_set_frag (sym, frag_now);
3443 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3445 symbol_get_tc (sym)->align = align;
3446 symbol_get_tc (sym)->output = 1;
3447 symbol_get_tc (sym)->within = sym;
3449 for (list = *list_ptr;
3450 symbol_get_tc (list)->next != (symbolS *) NULL;
3451 list = symbol_get_tc (list)->next)
3453 symbol_get_tc (list)->next = sym;
3455 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3456 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3460 ppc_current_csect = sym;
3463 /* This function handles the .text and .data pseudo-ops. These
3464 pseudo-ops aren't really used by XCOFF; we implement them for the
3465 convenience of people who aren't used to XCOFF. */
3468 ppc_section (int type)
3475 else if (type == 'd')
3480 sym = symbol_find_or_make (name);
3482 ppc_change_csect (sym, 2);
3484 demand_empty_rest_of_line ();
3487 /* This function handles the .section pseudo-op. This is mostly to
3488 give an error, since XCOFF only supports .text, .data and .bss, but
3489 we do permit the user to name the text or data section. */
3492 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3495 const char *real_name;
3499 user_name = input_line_pointer;
3500 c = get_symbol_end ();
3502 if (strcmp (user_name, ".text") == 0)
3503 real_name = ".text[PR]";
3504 else if (strcmp (user_name, ".data") == 0)
3505 real_name = ".data[RW]";
3508 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3509 *input_line_pointer = c;
3510 ignore_rest_of_line ();
3514 *input_line_pointer = c;
3516 sym = symbol_find_or_make (real_name);
3518 ppc_change_csect (sym, 2);
3520 demand_empty_rest_of_line ();
3523 /* The .extern pseudo-op. We create an undefined symbol. */
3526 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3531 name = input_line_pointer;
3532 endc = get_symbol_end ();
3534 (void) symbol_find_or_make (name);
3536 *input_line_pointer = endc;
3538 demand_empty_rest_of_line ();
3541 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3544 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3550 name = input_line_pointer;
3551 endc = get_symbol_end ();
3553 sym = symbol_find_or_make (name);
3555 *input_line_pointer = endc;
3557 symbol_get_tc (sym)->output = 1;
3559 demand_empty_rest_of_line ();
3562 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3563 although I don't know why it bothers. */
3566 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3573 name = input_line_pointer;
3574 endc = get_symbol_end ();
3576 sym = symbol_find_or_make (name);
3578 *input_line_pointer = endc;
3580 if (*input_line_pointer != ',')
3582 as_bad (_("missing rename string"));
3583 ignore_rest_of_line ();
3586 ++input_line_pointer;
3588 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3590 demand_empty_rest_of_line ();
3593 /* The .stabx pseudo-op. This is similar to a normal .stabs
3594 pseudo-op, but slightly different. A sample is
3595 .stabx "main:F-1",.main,142,0
3596 The first argument is the symbol name to create. The second is the
3597 value, and the third is the storage class. The fourth seems to be
3598 always zero, and I am assuming it is the type. */
3601 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3608 name = demand_copy_C_string (&len);
3610 if (*input_line_pointer != ',')
3612 as_bad (_("missing value"));
3615 ++input_line_pointer;
3617 ppc_stab_symbol = TRUE;
3618 sym = symbol_make (name);
3619 ppc_stab_symbol = FALSE;
3621 symbol_get_tc (sym)->real_name = name;
3623 (void) expression (&exp);
3630 as_bad (_("illegal .stabx expression; zero assumed"));
3631 exp.X_add_number = 0;
3634 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3635 symbol_set_frag (sym, &zero_address_frag);
3639 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3640 symbol_set_value_expression (sym, &exp);
3644 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3645 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3650 /* The value is some complex expression. This will probably
3651 fail at some later point, but this is probably the right
3652 thing to do here. */
3653 symbol_set_value_expression (sym, &exp);
3657 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3658 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3660 if (*input_line_pointer != ',')
3662 as_bad (_("missing class"));
3665 ++input_line_pointer;
3667 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3669 if (*input_line_pointer != ',')
3671 as_bad (_("missing type"));
3674 ++input_line_pointer;
3676 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3678 symbol_get_tc (sym)->output = 1;
3680 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3682 symbol_get_tc (sym)->within = ppc_current_block;
3687 .stabx "z",arrays_,133,0
3690 .comm arrays_,13768,3
3692 resolve_symbol_value will copy the exp's "within" into sym's when the
3693 offset is 0. Since this seems to be corner case problem,
3694 only do the correction for storage class C_STSYM. A better solution
3695 would be to have the tc field updated in ppc_symbol_new_hook. */
3697 if (exp.X_op == O_symbol)
3699 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3703 if (exp.X_op != O_symbol
3704 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3705 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3706 ppc_frob_label (sym);
3709 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3710 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3711 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3712 symbol_get_tc (ppc_current_csect)->within = sym;
3715 demand_empty_rest_of_line ();
3718 /* The .function pseudo-op. This takes several arguments. The first
3719 argument seems to be the external name of the symbol. The second
3720 argument seems to be the label for the start of the function. gcc
3721 uses the same name for both. I have no idea what the third and
3722 fourth arguments are meant to be. The optional fifth argument is
3723 an expression for the size of the function. In COFF this symbol
3724 gets an aux entry like that used for a csect. */
3727 ppc_function (int ignore ATTRIBUTE_UNUSED)
3735 name = input_line_pointer;
3736 endc = get_symbol_end ();
3738 /* Ignore any [PR] suffix. */
3739 name = ppc_canonicalize_symbol_name (name);
3740 s = strchr (name, '[');
3741 if (s != (char *) NULL
3742 && strcmp (s + 1, "PR]") == 0)
3745 ext_sym = symbol_find_or_make (name);
3747 *input_line_pointer = endc;
3749 if (*input_line_pointer != ',')
3751 as_bad (_("missing symbol name"));
3752 ignore_rest_of_line ();
3755 ++input_line_pointer;
3757 name = input_line_pointer;
3758 endc = get_symbol_end ();
3760 lab_sym = symbol_find_or_make (name);
3762 *input_line_pointer = endc;
3764 if (ext_sym != lab_sym)
3768 exp.X_op = O_symbol;
3769 exp.X_add_symbol = lab_sym;
3770 exp.X_op_symbol = NULL;
3771 exp.X_add_number = 0;
3773 symbol_set_value_expression (ext_sym, &exp);
3776 if (symbol_get_tc (ext_sym)->symbol_class == -1)
3777 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
3778 symbol_get_tc (ext_sym)->output = 1;
3780 if (*input_line_pointer == ',')
3784 /* Ignore the third argument. */
3785 ++input_line_pointer;
3787 if (*input_line_pointer == ',')
3789 /* Ignore the fourth argument. */
3790 ++input_line_pointer;
3792 if (*input_line_pointer == ',')
3794 /* The fifth argument is the function size. */
3795 ++input_line_pointer;
3796 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3799 &zero_address_frag);
3800 pseudo_set (symbol_get_tc (ext_sym)->size);
3805 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3806 SF_SET_FUNCTION (ext_sym);
3807 SF_SET_PROCESS (ext_sym);
3808 coff_add_linesym (ext_sym);
3810 demand_empty_rest_of_line ();
3813 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3814 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3815 with the correct line number */
3817 static symbolS *saved_bi_sym = 0;
3820 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3824 sym = symbol_make (".bf");
3825 S_SET_SEGMENT (sym, text_section);
3826 symbol_set_frag (sym, frag_now);
3827 S_SET_VALUE (sym, frag_now_fix ());
3828 S_SET_STORAGE_CLASS (sym, C_FCN);
3830 coff_line_base = get_absolute_expression ();
3832 S_SET_NUMBER_AUXILIARY (sym, 1);
3833 SA_SET_SYM_LNNO (sym, coff_line_base);
3835 /* Line number for bi. */
3838 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3843 symbol_get_tc (sym)->output = 1;
3845 ppc_frob_label (sym);
3847 demand_empty_rest_of_line ();
3850 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3851 ".ef", except that the line number is absolute, not relative to the
3852 most recent ".bf" symbol. */
3855 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3859 sym = symbol_make (".ef");
3860 S_SET_SEGMENT (sym, text_section);
3861 symbol_set_frag (sym, frag_now);
3862 S_SET_VALUE (sym, frag_now_fix ());
3863 S_SET_STORAGE_CLASS (sym, C_FCN);
3864 S_SET_NUMBER_AUXILIARY (sym, 1);
3865 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3866 symbol_get_tc (sym)->output = 1;
3868 ppc_frob_label (sym);
3870 demand_empty_rest_of_line ();
3873 /* The .bi and .ei pseudo-ops. These take a string argument and
3874 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3875 the symbol list. The value of .bi will be know when the next .bf
3881 static symbolS *last_biei;
3888 name = demand_copy_C_string (&len);
3890 /* The value of these symbols is actually file offset. Here we set
3891 the value to the index into the line number entries. In
3892 ppc_frob_symbols we set the fix_line field, which will cause BFD
3893 to do the right thing. */
3895 sym = symbol_make (name);
3896 /* obj-coff.c currently only handles line numbers correctly in the
3898 S_SET_SEGMENT (sym, text_section);
3899 S_SET_VALUE (sym, coff_n_line_nos);
3900 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3902 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3903 symbol_get_tc (sym)->output = 1;
3911 for (look = last_biei ? last_biei : symbol_rootP;
3912 (look != (symbolS *) NULL
3913 && (S_GET_STORAGE_CLASS (look) == C_FILE
3914 || S_GET_STORAGE_CLASS (look) == C_BINCL
3915 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3916 look = symbol_next (look))
3918 if (look != (symbolS *) NULL)
3920 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3921 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3925 demand_empty_rest_of_line ();
3928 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3929 There is one argument, which is a csect symbol. The value of the
3930 .bs symbol is the index of this csect symbol. */
3933 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3940 if (ppc_current_block != NULL)
3941 as_bad (_("nested .bs blocks"));
3943 name = input_line_pointer;
3944 endc = get_symbol_end ();
3946 csect = symbol_find_or_make (name);
3948 *input_line_pointer = endc;
3950 sym = symbol_make (".bs");
3951 S_SET_SEGMENT (sym, now_seg);
3952 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3953 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3954 symbol_get_tc (sym)->output = 1;
3956 symbol_get_tc (sym)->within = csect;
3958 ppc_frob_label (sym);
3960 ppc_current_block = sym;
3962 demand_empty_rest_of_line ();
3965 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3968 ppc_es (int ignore ATTRIBUTE_UNUSED)
3972 if (ppc_current_block == NULL)
3973 as_bad (_(".es without preceding .bs"));
3975 sym = symbol_make (".es");
3976 S_SET_SEGMENT (sym, now_seg);
3977 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3978 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3979 symbol_get_tc (sym)->output = 1;
3981 ppc_frob_label (sym);
3983 ppc_current_block = NULL;
3985 demand_empty_rest_of_line ();
3988 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3992 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3996 sym = symbol_make (".bb");
3997 S_SET_SEGMENT (sym, text_section);
3998 symbol_set_frag (sym, frag_now);
3999 S_SET_VALUE (sym, frag_now_fix ());
4000 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4002 S_SET_NUMBER_AUXILIARY (sym, 1);
4003 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4005 symbol_get_tc (sym)->output = 1;
4007 SF_SET_PROCESS (sym);
4009 ppc_frob_label (sym);
4011 demand_empty_rest_of_line ();
4014 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4018 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4022 sym = symbol_make (".eb");
4023 S_SET_SEGMENT (sym, text_section);
4024 symbol_set_frag (sym, frag_now);
4025 S_SET_VALUE (sym, frag_now_fix ());
4026 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4027 S_SET_NUMBER_AUXILIARY (sym, 1);
4028 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4029 symbol_get_tc (sym)->output = 1;
4031 SF_SET_PROCESS (sym);
4033 ppc_frob_label (sym);
4035 demand_empty_rest_of_line ();
4038 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4042 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4048 name = demand_copy_C_string (&len);
4049 sym = symbol_make (name);
4050 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4051 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4052 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4053 S_SET_VALUE (sym, 0);
4054 symbol_get_tc (sym)->output = 1;
4056 ppc_frob_label (sym);
4058 demand_empty_rest_of_line ();
4061 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4064 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4068 sym = symbol_make (".ec");
4069 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4070 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4071 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4072 S_SET_VALUE (sym, 0);
4073 symbol_get_tc (sym)->output = 1;
4075 ppc_frob_label (sym);
4077 demand_empty_rest_of_line ();
4080 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4083 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4085 if (ppc_toc_csect != (symbolS *) NULL)
4086 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4093 subseg = ppc_data_subsegment;
4094 ++ppc_data_subsegment;
4096 subseg_new (segment_name (data_section), subseg);
4097 ppc_toc_frag = frag_now;
4099 sym = symbol_find_or_make ("TOC[TC0]");
4100 symbol_set_frag (sym, frag_now);
4101 S_SET_SEGMENT (sym, data_section);
4102 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4103 symbol_get_tc (sym)->subseg = subseg;
4104 symbol_get_tc (sym)->output = 1;
4105 symbol_get_tc (sym)->within = sym;
4107 ppc_toc_csect = sym;
4109 for (list = ppc_data_csects;
4110 symbol_get_tc (list)->next != (symbolS *) NULL;
4111 list = symbol_get_tc (list)->next)
4113 symbol_get_tc (list)->next = sym;
4115 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4116 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4120 ppc_current_csect = ppc_toc_csect;
4122 demand_empty_rest_of_line ();
4125 /* The AIX assembler automatically aligns the operands of a .long or
4126 .short pseudo-op, and we want to be compatible. */
4129 ppc_xcoff_cons (int log_size)
4131 frag_align (log_size, 0, 0);
4132 record_alignment (now_seg, log_size);
4133 cons (1 << log_size);
4137 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4142 (void) expression (&exp);
4144 if (exp.X_op != O_constant)
4146 as_bad (_("non-constant byte count"));
4150 byte_count = exp.X_add_number;
4152 if (*input_line_pointer != ',')
4154 as_bad (_("missing value"));
4158 ++input_line_pointer;
4162 #endif /* OBJ_XCOFF */
4163 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4165 /* The .tc pseudo-op. This is used when generating either XCOFF or
4166 ELF. This takes two or more arguments.
4168 When generating XCOFF output, the first argument is the name to
4169 give to this location in the toc; this will be a symbol with class
4170 TC. The rest of the arguments are N-byte values to actually put at
4171 this location in the TOC; often there is just one more argument, a
4172 relocatable symbol reference. The size of the value to store
4173 depends on target word size. A 32-bit target uses 4-byte values, a
4174 64-bit target uses 8-byte values.
4176 When not generating XCOFF output, the arguments are the same, but
4177 the first argument is simply ignored. */
4180 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4184 /* Define the TOC symbol name. */
4190 if (ppc_toc_csect == (symbolS *) NULL
4191 || ppc_toc_csect != ppc_current_csect)
4193 as_bad (_(".tc not in .toc section"));
4194 ignore_rest_of_line ();
4198 name = input_line_pointer;
4199 endc = get_symbol_end ();
4201 sym = symbol_find_or_make (name);
4203 *input_line_pointer = endc;
4205 if (S_IS_DEFINED (sym))
4209 label = symbol_get_tc (ppc_current_csect)->within;
4210 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4212 as_bad (_(".tc with no label"));
4213 ignore_rest_of_line ();
4217 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4218 symbol_set_frag (label, symbol_get_frag (sym));
4219 S_SET_VALUE (label, S_GET_VALUE (sym));
4221 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4222 ++input_line_pointer;
4227 S_SET_SEGMENT (sym, now_seg);
4228 symbol_set_frag (sym, frag_now);
4229 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4230 symbol_get_tc (sym)->symbol_class = XMC_TC;
4231 symbol_get_tc (sym)->output = 1;
4233 ppc_frob_label (sym);
4236 #endif /* OBJ_XCOFF */
4240 /* Skip the TOC symbol name. */
4241 while (is_part_of_name (*input_line_pointer)
4242 || *input_line_pointer == ' '
4243 || *input_line_pointer == '['
4244 || *input_line_pointer == ']'
4245 || *input_line_pointer == '{'
4246 || *input_line_pointer == '}')
4247 ++input_line_pointer;
4249 /* Align to a four/eight byte boundary. */
4250 align = ppc_obj64 ? 3 : 2;
4251 frag_align (align, 0, 0);
4252 record_alignment (now_seg, align);
4253 #endif /* OBJ_ELF */
4255 if (*input_line_pointer != ',')
4256 demand_empty_rest_of_line ();
4259 ++input_line_pointer;
4260 cons (ppc_obj64 ? 8 : 4);
4264 /* Pseudo-op .machine. */
4267 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4270 #define MAX_HISTORY 100
4271 static ppc_cpu_t *cpu_history;
4272 static int curr_hist;
4276 if (*input_line_pointer == '"')
4279 cpu_string = demand_copy_C_string (&len);
4284 cpu_string = input_line_pointer;
4285 c = get_symbol_end ();
4286 cpu_string = xstrdup (cpu_string);
4287 *input_line_pointer = c;
4290 if (cpu_string != NULL)
4292 ppc_cpu_t old_cpu = ppc_cpu;
4296 for (p = cpu_string; *p != 0; p++)
4299 if (strcmp (cpu_string, "push") == 0)
4301 if (cpu_history == NULL)
4302 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4304 if (curr_hist >= MAX_HISTORY)
4305 as_bad (_(".machine stack overflow"));
4307 cpu_history[curr_hist++] = ppc_cpu;
4309 else if (strcmp (cpu_string, "pop") == 0)
4312 as_bad (_(".machine stack underflow"));
4314 ppc_cpu = cpu_history[--curr_hist];
4316 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, cpu_string)) != 0)
4319 as_bad (_("invalid machine `%s'"), cpu_string);
4321 if (ppc_cpu != old_cpu)
4322 ppc_setup_opcodes ();
4325 demand_empty_rest_of_line ();
4328 /* See whether a symbol is in the TOC section. */
4331 ppc_is_toc_sym (symbolS *sym)
4334 return symbol_get_tc (sym)->symbol_class == XMC_TC;
4337 const char *sname = segment_name (S_GET_SEGMENT (sym));
4339 return strcmp (sname, ".toc") == 0;
4341 return strcmp (sname, ".got") == 0;
4344 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4348 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4350 /* Set the current section. */
4352 ppc_set_current_section (segT new)
4354 ppc_previous_section = ppc_current_section;
4355 ppc_current_section = new;
4358 /* pseudo-op: .previous
4359 behaviour: toggles the current section with the previous section.
4361 warnings: "No previous section" */
4364 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4368 if (ppc_previous_section == NULL)
4370 as_warn (_("No previous section to return to. Directive ignored."));
4374 subseg_set (ppc_previous_section, 0);
4376 ppc_set_current_section (ppc_previous_section);
4379 /* pseudo-op: .pdata
4380 behaviour: predefined read only data section
4384 initial: .section .pdata "adr3"
4385 a - don't know -- maybe a misprint
4386 d - initialized data
4388 3 - double word aligned (that would be 4 byte boundary)
4391 Tag index tables (also known as the function table) for exception
4392 handling, debugging, etc. */
4395 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4397 if (pdata_section == 0)
4399 pdata_section = subseg_new (".pdata", 0);
4401 bfd_set_section_flags (stdoutput, pdata_section,
4402 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4403 | SEC_READONLY | SEC_DATA ));
4405 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4409 pdata_section = subseg_new (".pdata", 0);
4411 ppc_set_current_section (pdata_section);
4414 /* pseudo-op: .ydata
4415 behaviour: predefined read only data section
4419 initial: .section .ydata "drw3"
4420 a - don't know -- maybe a misprint
4421 d - initialized data
4423 3 - double word aligned (that would be 4 byte boundary)
4425 Tag tables (also known as the scope table) for exception handling,
4429 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4431 if (ydata_section == 0)
4433 ydata_section = subseg_new (".ydata", 0);
4434 bfd_set_section_flags (stdoutput, ydata_section,
4435 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4436 | SEC_READONLY | SEC_DATA ));
4438 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4442 ydata_section = subseg_new (".ydata", 0);
4444 ppc_set_current_section (ydata_section);
4447 /* pseudo-op: .reldata
4448 behaviour: predefined read write data section
4449 double word aligned (4-byte)
4450 FIXME: relocation is applied to it
4451 FIXME: what's the difference between this and .data?
4454 initial: .section .reldata "drw3"
4455 d - initialized data
4458 3 - double word aligned (that would be 8 byte boundary)
4461 Like .data, but intended to hold data subject to relocation, such as
4462 function descriptors, etc. */
4465 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4467 if (reldata_section == 0)
4469 reldata_section = subseg_new (".reldata", 0);
4471 bfd_set_section_flags (stdoutput, reldata_section,
4472 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4475 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4479 reldata_section = subseg_new (".reldata", 0);
4481 ppc_set_current_section (reldata_section);
4484 /* pseudo-op: .rdata
4485 behaviour: predefined read only data section
4489 initial: .section .rdata "dr3"
4490 d - initialized data
4492 3 - double word aligned (that would be 4 byte boundary) */
4495 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4497 if (rdata_section == 0)
4499 rdata_section = subseg_new (".rdata", 0);
4500 bfd_set_section_flags (stdoutput, rdata_section,
4501 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4502 | SEC_READONLY | SEC_DATA ));
4504 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4508 rdata_section = subseg_new (".rdata", 0);
4510 ppc_set_current_section (rdata_section);
4513 /* pseudo-op: .ualong
4514 behaviour: much like .int, with the exception that no alignment is
4516 FIXME: test the alignment statement
4521 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4527 /* pseudo-op: .znop <symbol name>
4528 behaviour: Issue a nop instruction
4529 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4530 the supplied symbol name.
4532 warnings: Missing symbol name */
4535 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4538 const struct powerpc_opcode *opcode;
4549 /* Strip out the symbol name. */
4550 symbol_name = input_line_pointer;
4551 c = get_symbol_end ();
4553 name = xmalloc (input_line_pointer - symbol_name + 1);
4554 strcpy (name, symbol_name);
4556 sym = symbol_find_or_make (name);
4558 *input_line_pointer = c;
4562 /* Look up the opcode in the hash table. */
4563 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4565 /* Stick in the nop. */
4566 insn = opcode->opcode;
4568 /* Write out the instruction. */
4570 md_number_to_chars (f, insn, 4);
4572 f - frag_now->fr_literal,
4577 BFD_RELOC_16_GOT_PCREL);
4587 ppc_pe_comm (int lcomm)
4596 name = input_line_pointer;
4597 c = get_symbol_end ();
4599 /* just after name is now '\0'. */
4600 p = input_line_pointer;
4603 if (*input_line_pointer != ',')
4605 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4606 ignore_rest_of_line ();
4610 input_line_pointer++; /* skip ',' */
4611 if ((temp = get_absolute_expression ()) < 0)
4613 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4614 ignore_rest_of_line ();
4620 /* The third argument to .comm is the alignment. */
4621 if (*input_line_pointer != ',')
4625 ++input_line_pointer;
4626 align = get_absolute_expression ();
4629 as_warn (_("ignoring bad alignment"));
4636 symbolP = symbol_find_or_make (name);
4639 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4641 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4642 S_GET_NAME (symbolP));
4643 ignore_rest_of_line ();
4647 if (S_GET_VALUE (symbolP))
4649 if (S_GET_VALUE (symbolP) != (valueT) temp)
4650 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4651 S_GET_NAME (symbolP),
4652 (long) S_GET_VALUE (symbolP),
4657 S_SET_VALUE (symbolP, (valueT) temp);
4658 S_SET_EXTERNAL (symbolP);
4659 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4662 demand_empty_rest_of_line ();
4666 * implement the .section pseudo op:
4667 * .section name {, "flags"}
4669 * | +--- optional flags: 'b' for bss
4671 * +-- section name 'l' for lib
4675 * 'd' (apparently m88k for data)
4677 * But if the argument is not a quoted string, treat it as a
4678 * subsegment number.
4680 * FIXME: this is a copy of the section processing from obj-coff.c, with
4681 * additions/changes for the moto-pas assembler support. There are three
4684 * FIXME: I just noticed this. This doesn't work at all really. It it
4685 * setting bits that bfd probably neither understands or uses. The
4686 * correct approach (?) will have to incorporate extra fields attached
4687 * to the section to hold the system specific stuff. (krk)
4690 * 'a' - unknown - referred to in documentation, but no definition supplied
4691 * 'c' - section has code
4692 * 'd' - section has initialized data
4693 * 'u' - section has uninitialized data
4694 * 'i' - section contains directives (info)
4695 * 'n' - section can be discarded
4696 * 'R' - remove section at link time
4698 * Section Protection:
4699 * 'r' - section is readable
4700 * 'w' - section is writeable
4701 * 'x' - section is executable
4702 * 's' - section is sharable
4704 * Section Alignment:
4705 * '0' - align to byte boundary
4706 * '1' - align to halfword undary
4707 * '2' - align to word boundary
4708 * '3' - align to doubleword boundary
4709 * '4' - align to quadword boundary
4710 * '5' - align to 32 byte boundary
4711 * '6' - align to 64 byte boundary
4716 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4718 /* Strip out the section name. */
4727 section_name = input_line_pointer;
4728 c = get_symbol_end ();
4730 name = xmalloc (input_line_pointer - section_name + 1);
4731 strcpy (name, section_name);
4733 *input_line_pointer = c;
4738 flags = SEC_NO_FLAGS;
4740 if (strcmp (name, ".idata$2") == 0)
4744 else if (strcmp (name, ".idata$3") == 0)
4748 else if (strcmp (name, ".idata$4") == 0)
4752 else if (strcmp (name, ".idata$5") == 0)
4756 else if (strcmp (name, ".idata$6") == 0)
4761 /* Default alignment to 16 byte boundary. */
4764 if (*input_line_pointer == ',')
4766 ++input_line_pointer;
4768 if (*input_line_pointer != '"')
4769 exp = get_absolute_expression ();
4772 ++input_line_pointer;
4773 while (*input_line_pointer != '"'
4774 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4776 switch (*input_line_pointer)
4778 /* Section Contents */
4779 case 'a': /* unknown */
4780 as_bad (_("Unsupported section attribute -- 'a'"));
4782 case 'c': /* code section */
4785 case 'd': /* section has initialized data */
4788 case 'u': /* section has uninitialized data */
4789 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4793 case 'i': /* section contains directives (info) */
4794 /* FIXME: This is IMAGE_SCN_LNK_INFO
4796 flags |= SEC_HAS_CONTENTS;
4798 case 'n': /* section can be discarded */
4801 case 'R': /* Remove section at link time */
4802 flags |= SEC_NEVER_LOAD;
4804 #if IFLICT_BRAIN_DAMAGE
4805 /* Section Protection */
4806 case 'r': /* section is readable */
4807 flags |= IMAGE_SCN_MEM_READ;
4809 case 'w': /* section is writeable */
4810 flags |= IMAGE_SCN_MEM_WRITE;
4812 case 'x': /* section is executable */
4813 flags |= IMAGE_SCN_MEM_EXECUTE;
4815 case 's': /* section is sharable */
4816 flags |= IMAGE_SCN_MEM_SHARED;
4819 /* Section Alignment */
4820 case '0': /* align to byte boundary */
4821 flags |= IMAGE_SCN_ALIGN_1BYTES;
4824 case '1': /* align to halfword boundary */
4825 flags |= IMAGE_SCN_ALIGN_2BYTES;
4828 case '2': /* align to word boundary */
4829 flags |= IMAGE_SCN_ALIGN_4BYTES;
4832 case '3': /* align to doubleword boundary */
4833 flags |= IMAGE_SCN_ALIGN_8BYTES;
4836 case '4': /* align to quadword boundary */
4837 flags |= IMAGE_SCN_ALIGN_16BYTES;
4840 case '5': /* align to 32 byte boundary */
4841 flags |= IMAGE_SCN_ALIGN_32BYTES;
4844 case '6': /* align to 64 byte boundary */
4845 flags |= IMAGE_SCN_ALIGN_64BYTES;
4850 as_bad (_("unknown section attribute '%c'"),
4851 *input_line_pointer);
4854 ++input_line_pointer;
4856 if (*input_line_pointer == '"')
4857 ++input_line_pointer;
4861 sec = subseg_new (name, (subsegT) exp);
4863 ppc_set_current_section (sec);
4865 if (flags != SEC_NO_FLAGS)
4867 if (! bfd_set_section_flags (stdoutput, sec, flags))
4868 as_bad (_("error setting flags for \"%s\": %s"),
4869 bfd_section_name (stdoutput, sec),
4870 bfd_errmsg (bfd_get_error ()));
4873 bfd_set_section_alignment (stdoutput, sec, align);
4877 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4883 name = input_line_pointer;
4884 endc = get_symbol_end ();
4886 ext_sym = symbol_find_or_make (name);
4888 *input_line_pointer = endc;
4890 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4891 SF_SET_FUNCTION (ext_sym);
4892 SF_SET_PROCESS (ext_sym);
4893 coff_add_linesym (ext_sym);
4895 demand_empty_rest_of_line ();
4899 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4901 if (tocdata_section == 0)
4903 tocdata_section = subseg_new (".tocd", 0);
4904 /* FIXME: section flags won't work. */
4905 bfd_set_section_flags (stdoutput, tocdata_section,
4906 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4907 | SEC_READONLY | SEC_DATA));
4909 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4913 rdata_section = subseg_new (".tocd", 0);
4916 ppc_set_current_section (tocdata_section);
4918 demand_empty_rest_of_line ();
4921 /* Don't adjust TOC relocs to use the section symbol. */
4924 ppc_pe_fix_adjustable (fixS *fix)
4926 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4933 /* XCOFF specific symbol and file handling. */
4935 /* Canonicalize the symbol name. We use the to force the suffix, if
4936 any, to use square brackets, and to be in upper case. */
4939 ppc_canonicalize_symbol_name (char *name)
4943 if (ppc_stab_symbol)
4946 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4960 for (s++; *s != '\0' && *s != brac; s++)
4963 if (*s == '\0' || s[1] != '\0')
4964 as_bad (_("bad symbol suffix"));
4972 /* Set the class of a symbol based on the suffix, if any. This is
4973 called whenever a new symbol is created. */
4976 ppc_symbol_new_hook (symbolS *sym)
4978 struct ppc_tc_sy *tc;
4981 tc = symbol_get_tc (sym);
4984 tc->symbol_class = -1;
4985 tc->real_name = NULL;
4991 if (ppc_stab_symbol)
4994 s = strchr (S_GET_NAME (sym), '[');
4995 if (s == (const char *) NULL)
4997 /* There is no suffix. */
5006 if (strcmp (s, "BS]") == 0)
5007 tc->symbol_class = XMC_BS;
5010 if (strcmp (s, "DB]") == 0)
5011 tc->symbol_class = XMC_DB;
5012 else if (strcmp (s, "DS]") == 0)
5013 tc->symbol_class = XMC_DS;
5016 if (strcmp (s, "GL]") == 0)
5017 tc->symbol_class = XMC_GL;
5020 if (strcmp (s, "PR]") == 0)
5021 tc->symbol_class = XMC_PR;
5024 if (strcmp (s, "RO]") == 0)
5025 tc->symbol_class = XMC_RO;
5026 else if (strcmp (s, "RW]") == 0)
5027 tc->symbol_class = XMC_RW;
5030 if (strcmp (s, "SV]") == 0)
5031 tc->symbol_class = XMC_SV;
5034 if (strcmp (s, "TC]") == 0)
5035 tc->symbol_class = XMC_TC;
5036 else if (strcmp (s, "TI]") == 0)
5037 tc->symbol_class = XMC_TI;
5038 else if (strcmp (s, "TB]") == 0)
5039 tc->symbol_class = XMC_TB;
5040 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5041 tc->symbol_class = XMC_TC0;
5044 if (strcmp (s, "UA]") == 0)
5045 tc->symbol_class = XMC_UA;
5046 else if (strcmp (s, "UC]") == 0)
5047 tc->symbol_class = XMC_UC;
5050 if (strcmp (s, "XO]") == 0)
5051 tc->symbol_class = XMC_XO;
5055 if (tc->symbol_class == -1)
5056 as_bad (_("Unrecognized symbol suffix"));
5059 /* Set the class of a label based on where it is defined. This
5060 handles symbols without suffixes. Also, move the symbol so that it
5061 follows the csect symbol. */
5064 ppc_frob_label (symbolS *sym)
5066 if (ppc_current_csect != (symbolS *) NULL)
5068 if (symbol_get_tc (sym)->symbol_class == -1)
5069 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5071 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5072 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5073 &symbol_rootP, &symbol_lastP);
5074 symbol_get_tc (ppc_current_csect)->within = sym;
5078 dwarf2_emit_label (sym);
5082 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5083 seen. It tells ppc_adjust_symtab whether it needs to look through
5086 static bfd_boolean ppc_saw_abs;
5088 /* Change the name of a symbol just before writing it out. Set the
5089 real name if the .rename pseudo-op was used. Otherwise, remove any
5090 class suffix. Return 1 if the symbol should not be included in the
5094 ppc_frob_symbol (symbolS *sym)
5096 static symbolS *ppc_last_function;
5097 static symbolS *set_end;
5099 /* Discard symbols that should not be included in the output symbol
5101 if (! symbol_used_in_reloc_p (sym)
5102 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5103 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5104 && ! symbol_get_tc (sym)->output
5105 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5108 /* This one will disappear anyway. Don't make a csect sym for it. */
5109 if (sym == abs_section_sym)
5112 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5113 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5119 name = S_GET_NAME (sym);
5120 s = strchr (name, '[');
5121 if (s != (char *) NULL)
5127 snew = xmalloc (len + 1);
5128 memcpy (snew, name, len);
5131 S_SET_NAME (sym, snew);
5135 if (set_end != (symbolS *) NULL)
5137 SA_SET_SYM_ENDNDX (set_end, sym);
5141 if (SF_GET_FUNCTION (sym))
5143 if (ppc_last_function != (symbolS *) NULL)
5144 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5145 ppc_last_function = sym;
5146 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5148 resolve_symbol_value (symbol_get_tc (sym)->size);
5149 SA_SET_SYM_FSIZE (sym,
5150 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5153 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5154 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5156 if (ppc_last_function == (symbolS *) NULL)
5157 as_bad (_(".ef with no preceding .function"));
5160 set_end = ppc_last_function;
5161 ppc_last_function = NULL;
5163 /* We don't have a C_EFCN symbol, but we need to force the
5164 COFF backend to believe that it has seen one. */
5165 coff_last_function = NULL;
5169 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5170 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5171 && S_GET_STORAGE_CLASS (sym) != C_FILE
5172 && S_GET_STORAGE_CLASS (sym) != C_FCN
5173 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5174 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5175 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5176 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5177 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5178 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5179 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5181 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5182 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5183 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5186 union internal_auxent *a;
5188 /* Create a csect aux. */
5189 i = S_GET_NUMBER_AUXILIARY (sym);
5190 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5191 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5192 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5194 /* This is the TOC table. */
5195 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5196 a->x_csect.x_scnlen.l = 0;
5197 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5199 else if (symbol_get_tc (sym)->subseg != 0)
5201 /* This is a csect symbol. x_scnlen is the size of the
5203 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5204 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5205 S_GET_SEGMENT (sym))
5206 - S_GET_VALUE (sym));
5209 resolve_symbol_value (symbol_get_tc (sym)->next);
5210 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5211 - S_GET_VALUE (sym));
5213 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5215 else if (S_GET_SEGMENT (sym) == bss_section)
5217 /* This is a common symbol. */
5218 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5219 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5220 if (S_IS_EXTERNAL (sym))
5221 symbol_get_tc (sym)->symbol_class = XMC_RW;
5223 symbol_get_tc (sym)->symbol_class = XMC_BS;
5225 else if (S_GET_SEGMENT (sym) == absolute_section)
5227 /* This is an absolute symbol. The csect will be created by
5228 ppc_adjust_symtab. */
5230 a->x_csect.x_smtyp = XTY_LD;
5231 if (symbol_get_tc (sym)->symbol_class == -1)
5232 symbol_get_tc (sym)->symbol_class = XMC_XO;
5234 else if (! S_IS_DEFINED (sym))
5236 /* This is an external symbol. */
5237 a->x_csect.x_scnlen.l = 0;
5238 a->x_csect.x_smtyp = XTY_ER;
5240 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5244 /* This is a TOC definition. x_scnlen is the size of the
5246 next = symbol_next (sym);
5247 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5248 next = symbol_next (next);
5249 if (next == (symbolS *) NULL
5250 || symbol_get_tc (next)->symbol_class != XMC_TC)
5252 if (ppc_after_toc_frag == (fragS *) NULL)
5253 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5255 - S_GET_VALUE (sym));
5257 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5258 - S_GET_VALUE (sym));
5262 resolve_symbol_value (next);
5263 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5264 - S_GET_VALUE (sym));
5266 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5272 /* This is a normal symbol definition. x_scnlen is the
5273 symbol index of the containing csect. */
5274 if (S_GET_SEGMENT (sym) == text_section)
5275 csect = ppc_text_csects;
5276 else if (S_GET_SEGMENT (sym) == data_section)
5277 csect = ppc_data_csects;
5281 /* Skip the initial dummy symbol. */
5282 csect = symbol_get_tc (csect)->next;
5284 if (csect == (symbolS *) NULL)
5286 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5287 a->x_csect.x_scnlen.l = 0;
5291 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5293 resolve_symbol_value (symbol_get_tc (csect)->next);
5294 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5295 > S_GET_VALUE (sym))
5297 csect = symbol_get_tc (csect)->next;
5300 a->x_csect.x_scnlen.p =
5301 coffsymbol (symbol_get_bfdsym (csect))->native;
5302 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5305 a->x_csect.x_smtyp = XTY_LD;
5308 a->x_csect.x_parmhash = 0;
5309 a->x_csect.x_snhash = 0;
5310 if (symbol_get_tc (sym)->symbol_class == -1)
5311 a->x_csect.x_smclas = XMC_PR;
5313 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5314 a->x_csect.x_stab = 0;
5315 a->x_csect.x_snstab = 0;
5317 /* Don't let the COFF backend resort these symbols. */
5318 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5320 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5322 /* We want the value to be the symbol index of the referenced
5323 csect symbol. BFD will do that for us if we set the right
5325 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5326 combined_entry_type *c = coffsymbol (bsym)->native;
5328 S_SET_VALUE (sym, (valueT) (size_t) c);
5329 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5331 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5336 /* The value is the offset from the enclosing csect. */
5337 block = symbol_get_tc (sym)->within;
5338 csect = symbol_get_tc (block)->within;
5339 resolve_symbol_value (csect);
5340 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5342 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5343 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5345 /* We want the value to be a file offset into the line numbers.
5346 BFD will do that for us if we set the right flags. We have
5347 already set the value correctly. */
5348 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5354 /* Adjust the symbol table. This creates csect symbols for all
5355 absolute symbols. */
5358 ppc_adjust_symtab (void)
5365 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5369 union internal_auxent *a;
5371 if (S_GET_SEGMENT (sym) != absolute_section)
5374 csect = symbol_create (".abs[XO]", absolute_section,
5375 S_GET_VALUE (sym), &zero_address_frag);
5376 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5377 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5378 i = S_GET_NUMBER_AUXILIARY (csect);
5379 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5380 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5381 a->x_csect.x_scnlen.l = 0;
5382 a->x_csect.x_smtyp = XTY_SD;
5383 a->x_csect.x_parmhash = 0;
5384 a->x_csect.x_snhash = 0;
5385 a->x_csect.x_smclas = XMC_XO;
5386 a->x_csect.x_stab = 0;
5387 a->x_csect.x_snstab = 0;
5389 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5391 i = S_GET_NUMBER_AUXILIARY (sym);
5392 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5393 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5394 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5397 ppc_saw_abs = FALSE;
5400 /* Set the VMA for a section. This is called on all the sections in
5404 ppc_frob_section (asection *sec)
5406 static bfd_vma vma = 0;
5408 vma = md_section_align (sec, vma);
5409 bfd_set_section_vma (stdoutput, sec, vma);
5410 vma += bfd_section_size (stdoutput, sec);
5413 #endif /* OBJ_XCOFF */
5416 md_atof (int type, char *litp, int *sizep)
5418 return ieee_md_atof (type, litp, sizep, target_big_endian);
5421 /* Write a value out to the object file, using the appropriate
5425 md_number_to_chars (char *buf, valueT val, int n)
5427 if (target_big_endian)
5428 number_to_chars_bigendian (buf, val, n);
5430 number_to_chars_littleendian (buf, val, n);
5433 /* Align a section (I don't know why this is machine dependent). */
5436 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5441 int align = bfd_get_section_alignment (stdoutput, seg);
5443 return ((addr + (1 << align) - 1) & (-1 << align));
5447 /* We don't have any form of relaxing. */
5450 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5451 asection *seg ATTRIBUTE_UNUSED)
5457 /* Convert a machine dependent frag. We never generate these. */
5460 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5461 asection *sec ATTRIBUTE_UNUSED,
5462 fragS *fragp ATTRIBUTE_UNUSED)
5467 /* We have no need to default values of symbols. */
5470 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5475 /* Functions concerning relocs. */
5477 /* The location from which a PC relative jump should be calculated,
5478 given a PC relative reloc. */
5481 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5483 return fixp->fx_frag->fr_address + fixp->fx_where;
5488 /* This is called to see whether a fixup should be adjusted to use a
5489 section symbol. We take the opportunity to change a fixup against
5490 a symbol in the TOC subsegment into a reloc against the
5491 corresponding .tc symbol. */
5494 ppc_fix_adjustable (fixS *fix)
5496 valueT val = resolve_symbol_value (fix->fx_addsy);
5497 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5498 TC_SYMFIELD_TYPE *tc;
5500 if (symseg == absolute_section)
5503 if (ppc_toc_csect != (symbolS *) NULL
5504 && fix->fx_addsy != ppc_toc_csect
5505 && symseg == data_section
5506 && val >= ppc_toc_frag->fr_address
5507 && (ppc_after_toc_frag == (fragS *) NULL
5508 || val < ppc_after_toc_frag->fr_address))
5512 for (sy = symbol_next (ppc_toc_csect);
5513 sy != (symbolS *) NULL;
5514 sy = symbol_next (sy))
5516 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5518 if (sy_tc->symbol_class == XMC_TC0)
5520 if (sy_tc->symbol_class != XMC_TC)
5522 if (val == resolve_symbol_value (sy))
5525 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5530 as_bad_where (fix->fx_file, fix->fx_line,
5531 _("symbol in .toc does not match any .tc"));
5534 /* Possibly adjust the reloc to be against the csect. */
5535 tc = symbol_get_tc (fix->fx_addsy);
5537 && tc->symbol_class != XMC_TC0
5538 && tc->symbol_class != XMC_TC
5539 && symseg != bss_section
5540 /* Don't adjust if this is a reloc in the toc section. */
5541 && (symseg != data_section
5542 || ppc_toc_csect == NULL
5543 || val < ppc_toc_frag->fr_address
5544 || (ppc_after_toc_frag != NULL
5545 && val >= ppc_after_toc_frag->fr_address)))
5548 symbolS *next_csect;
5550 if (symseg == text_section)
5551 csect = ppc_text_csects;
5552 else if (symseg == data_section)
5553 csect = ppc_data_csects;
5557 /* Skip the initial dummy symbol. */
5558 csect = symbol_get_tc (csect)->next;
5560 if (csect != (symbolS *) NULL)
5562 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5563 && (symbol_get_frag (next_csect)->fr_address <= val))
5565 /* If the csect address equals the symbol value, then we
5566 have to look through the full symbol table to see
5567 whether this is the csect we want. Note that we will
5568 only get here if the csect has zero length. */
5569 if (symbol_get_frag (csect)->fr_address == val
5570 && S_GET_VALUE (csect) == val)
5574 for (scan = symbol_next (csect);
5576 scan = symbol_next (scan))
5578 if (symbol_get_tc (scan)->subseg != 0)
5580 if (scan == fix->fx_addsy)
5584 /* If we found the symbol before the next csect
5585 symbol, then this is the csect we want. */
5586 if (scan == fix->fx_addsy)
5593 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5594 fix->fx_addsy = csect;
5599 /* Adjust a reloc against a .lcomm symbol to be against the base
5601 if (symseg == bss_section
5602 && ! S_IS_EXTERNAL (fix->fx_addsy))
5604 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5606 fix->fx_offset += val - resolve_symbol_value (sy);
5613 /* A reloc from one csect to another must be kept. The assembler
5614 will, of course, keep relocs between sections, and it will keep
5615 absolute relocs, but we need to force it to keep PC relative relocs
5616 between two csects in the same section. */
5619 ppc_force_relocation (fixS *fix)
5621 /* At this point fix->fx_addsy should already have been converted to
5622 a csect symbol. If the csect does not include the fragment, then
5623 we need to force the relocation. */
5625 && fix->fx_addsy != NULL
5626 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5627 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5628 > fix->fx_frag->fr_address)
5629 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5630 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5631 <= fix->fx_frag->fr_address))))
5634 return generic_force_reloc (fix);
5637 #endif /* OBJ_XCOFF */
5640 /* If this function returns non-zero, it guarantees that a relocation
5641 will be emitted for a fixup. */
5644 ppc_force_relocation (fixS *fix)
5646 /* Branch prediction relocations must force a relocation, as must
5647 the vtable description relocs. */
5648 switch (fix->fx_r_type)
5650 case BFD_RELOC_PPC_B16_BRTAKEN:
5651 case BFD_RELOC_PPC_B16_BRNTAKEN:
5652 case BFD_RELOC_PPC_BA16_BRTAKEN:
5653 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5654 case BFD_RELOC_24_PLT_PCREL:
5655 case BFD_RELOC_PPC64_TOC:
5661 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5662 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5665 return generic_force_reloc (fix);
5669 ppc_fix_adjustable (fixS *fix)
5671 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5672 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5673 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5674 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5675 && fix->fx_r_type != BFD_RELOC_GPREL16
5676 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5677 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5678 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5679 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5683 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5684 rs_align_code frag. */
5687 ppc_handle_align (struct frag *fragP)
5689 valueT count = (fragP->fr_next->fr_address
5690 - (fragP->fr_address + fragP->fr_fix));
5692 if (count != 0 && (count & 3) == 0)
5694 char *dest = fragP->fr_literal + fragP->fr_fix;
5697 md_number_to_chars (dest, 0x60000000, 4);
5699 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
5700 || (ppc_cpu & PPC_OPCODE_POWER7) != 0)
5702 /* For power6 and power7, we want the last nop to be a group
5703 terminating one. Do this by inserting an rs_fill frag immediately
5704 after this one, with its address set to the last nop location.
5705 This will automatically reduce the number of nops in the current
5709 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5711 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5712 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5713 group_nop->fr_fix = 0;
5714 group_nop->fr_offset = 1;
5715 group_nop->fr_type = rs_fill;
5716 fragP->fr_next = group_nop;
5717 dest = group_nop->fr_literal;
5720 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
5721 /* power7 group terminating nop: "ori 2,2,0". */
5722 md_number_to_chars (dest, 0x60420000, 4);
5724 /* power6 group terminating nop: "ori 1,1,0". */
5725 md_number_to_chars (dest, 0x60210000, 4);
5730 /* Apply a fixup to the object code. This is called for all the
5731 fixups we generated by the call to fix_new_exp, above. In the call
5732 above we used a reloc code which was the largest legal reloc code
5733 plus the operand index. Here we undo that to recover the operand
5734 index. At this point all symbol values should be fully resolved,
5735 and we attempt to completely resolve the reloc. If we can not do
5736 that, we determine the correct reloc code and put it back in the
5740 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5742 valueT value = * valP;
5745 if (fixP->fx_addsy != NULL)
5747 /* Hack around bfd_install_relocation brain damage. */
5749 value += fixP->fx_frag->fr_address + fixP->fx_where;
5754 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5755 the symbol values. If we are doing this relocation the code in
5756 write.c is going to call bfd_install_relocation, which is also
5757 going to use the symbol value. That means that if the reloc is
5758 fully resolved we want to use *valP since bfd_install_relocation is
5760 However, if the reloc is not fully resolved we do not want to
5761 use *valP, and must use fx_offset instead. If the relocation
5762 is PC-relative, we then need to re-apply md_pcrel_from_section
5763 to this new relocation value. */
5764 if (fixP->fx_addsy == (symbolS *) NULL)
5769 value = fixP->fx_offset;
5771 value -= md_pcrel_from_section (fixP, seg);
5775 if (fixP->fx_subsy != (symbolS *) NULL)
5777 /* We can't actually support subtracting a symbol. */
5778 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5781 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5784 const struct powerpc_operand *operand;
5788 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5790 operand = &powerpc_operands[opindex];
5793 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5794 does not generate a reloc. It uses the offset of `sym' within its
5795 csect. Other usages, such as `.long sym', generate relocs. This
5796 is the documented behaviour of non-TOC symbols. */
5797 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5798 && (operand->bitm & 0xfff0) == 0xfff0
5799 && operand->shift == 0
5800 && (operand->insert == NULL || ppc_obj64)
5801 && fixP->fx_addsy != NULL
5802 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5803 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
5804 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
5805 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5807 value = fixP->fx_offset;
5812 /* Fetch the instruction, insert the fully resolved operand
5813 value, and stuff the instruction back again. */
5814 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5815 if (target_big_endian)
5816 insn = bfd_getb32 ((unsigned char *) where);
5818 insn = bfd_getl32 ((unsigned char *) where);
5819 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5820 fixP->tc_fix_data.ppc_cpu,
5821 fixP->fx_file, fixP->fx_line);
5822 if (target_big_endian)
5823 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5825 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5828 /* Nothing else to do here. */
5831 gas_assert (fixP->fx_addsy != NULL);
5833 /* Determine a BFD reloc value based on the operand information.
5834 We are only prepared to turn a few of the operands into
5836 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5837 && operand->bitm == 0x3fffffc
5838 && operand->shift == 0)
5839 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5840 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5841 && operand->bitm == 0xfffc
5842 && operand->shift == 0)
5844 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5847 if (target_big_endian)
5848 fixP->fx_where += 2;
5851 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5852 && operand->bitm == 0x3fffffc
5853 && operand->shift == 0)
5854 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5855 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5856 && operand->bitm == 0xfffc
5857 && operand->shift == 0)
5859 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5862 if (target_big_endian)
5863 fixP->fx_where += 2;
5866 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5867 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5868 && (operand->bitm & 0xfff0) == 0xfff0
5869 && operand->shift == 0)
5871 if (ppc_is_toc_sym (fixP->fx_addsy))
5873 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5876 && (operand->flags & PPC_OPERAND_DS) != 0)
5877 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5882 fixP->fx_r_type = BFD_RELOC_16;
5885 && (operand->flags & PPC_OPERAND_DS) != 0)
5886 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5890 if (target_big_endian)
5891 fixP->fx_where += 2;
5893 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5899 /* Use expr_symbol_where to see if this is an expression
5901 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5902 as_bad_where (fixP->fx_file, fixP->fx_line,
5903 _("unresolved expression that must be resolved"));
5905 as_bad_where (fixP->fx_file, fixP->fx_line,
5906 _("unsupported relocation against %s"),
5907 S_GET_NAME (fixP->fx_addsy));
5915 ppc_elf_validate_fix (fixP, seg);
5917 switch (fixP->fx_r_type)
5919 case BFD_RELOC_CTOR:
5926 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5930 case BFD_RELOC_32_PCREL:
5931 case BFD_RELOC_PPC_EMB_NADDR32:
5932 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5939 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5942 case BFD_RELOC_64_PCREL:
5943 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5947 case BFD_RELOC_GPREL16:
5948 case BFD_RELOC_16_GOT_PCREL:
5949 case BFD_RELOC_16_GOTOFF:
5950 case BFD_RELOC_LO16_GOTOFF:
5951 case BFD_RELOC_HI16_GOTOFF:
5952 case BFD_RELOC_HI16_S_GOTOFF:
5953 case BFD_RELOC_16_BASEREL:
5954 case BFD_RELOC_LO16_BASEREL:
5955 case BFD_RELOC_HI16_BASEREL:
5956 case BFD_RELOC_HI16_S_BASEREL:
5957 case BFD_RELOC_PPC_EMB_NADDR16:
5958 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5959 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5960 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5961 case BFD_RELOC_PPC_EMB_SDAI16:
5962 case BFD_RELOC_PPC_EMB_SDA2REL:
5963 case BFD_RELOC_PPC_EMB_SDA2I16:
5964 case BFD_RELOC_PPC_EMB_RELSEC16:
5965 case BFD_RELOC_PPC_EMB_RELST_LO:
5966 case BFD_RELOC_PPC_EMB_RELST_HI:
5967 case BFD_RELOC_PPC_EMB_RELST_HA:
5968 case BFD_RELOC_PPC_EMB_RELSDA:
5969 case BFD_RELOC_PPC_TOC16:
5971 case BFD_RELOC_PPC64_TOC16_LO:
5972 case BFD_RELOC_PPC64_TOC16_HI:
5973 case BFD_RELOC_PPC64_TOC16_HA:
5977 if (fixP->fx_addsy != NULL)
5978 as_bad_where (fixP->fx_file, fixP->fx_line,
5979 _("cannot emit PC relative %s relocation against %s"),
5980 bfd_get_reloc_code_name (fixP->fx_r_type),
5981 S_GET_NAME (fixP->fx_addsy));
5983 as_bad_where (fixP->fx_file, fixP->fx_line,
5984 _("cannot emit PC relative %s relocation"),
5985 bfd_get_reloc_code_name (fixP->fx_r_type));
5988 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5994 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5997 case BFD_RELOC_16_PCREL:
5998 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6002 case BFD_RELOC_LO16:
6004 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6007 case BFD_RELOC_LO16_PCREL:
6008 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6012 /* This case happens when you write, for example,
6014 where L1 and L2 are defined later. */
6015 case BFD_RELOC_HI16:
6017 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6020 case BFD_RELOC_HI16_PCREL:
6021 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6025 case BFD_RELOC_HI16_S:
6027 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6030 case BFD_RELOC_HI16_S_PCREL:
6031 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6036 case BFD_RELOC_PPC64_HIGHER:
6039 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6040 PPC_HIGHER (value), 2);
6043 case BFD_RELOC_PPC64_HIGHER_S:
6046 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6047 PPC_HIGHERA (value), 2);
6050 case BFD_RELOC_PPC64_HIGHEST:
6053 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6054 PPC_HIGHEST (value), 2);
6057 case BFD_RELOC_PPC64_HIGHEST_S:
6060 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6061 PPC_HIGHESTA (value), 2);
6064 case BFD_RELOC_PPC64_ADDR16_DS:
6065 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6066 case BFD_RELOC_PPC64_GOT16_DS:
6067 case BFD_RELOC_PPC64_GOT16_LO_DS:
6068 case BFD_RELOC_PPC64_PLT16_LO_DS:
6069 case BFD_RELOC_PPC64_SECTOFF_DS:
6070 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6071 case BFD_RELOC_PPC64_TOC16_DS:
6072 case BFD_RELOC_PPC64_TOC16_LO_DS:
6073 case BFD_RELOC_PPC64_PLTGOT16_DS:
6074 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6078 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
6079 unsigned long val, mask;
6081 if (target_big_endian)
6082 val = bfd_getb32 (where - 2);
6084 val = bfd_getl32 (where);
6086 /* lq insns reserve the four lsbs. */
6087 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
6088 && (val & (0x3f << 26)) == (56u << 26))
6090 val |= value & mask;
6091 if (target_big_endian)
6092 bfd_putb16 ((bfd_vma) val, where);
6094 bfd_putl16 ((bfd_vma) val, where);
6098 case BFD_RELOC_PPC_B16_BRTAKEN:
6099 case BFD_RELOC_PPC_B16_BRNTAKEN:
6100 case BFD_RELOC_PPC_BA16_BRTAKEN:
6101 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6104 case BFD_RELOC_PPC_TLS:
6105 case BFD_RELOC_PPC_TLSGD:
6106 case BFD_RELOC_PPC_TLSLD:
6109 case BFD_RELOC_PPC_DTPMOD:
6110 case BFD_RELOC_PPC_TPREL16:
6111 case BFD_RELOC_PPC_TPREL16_LO:
6112 case BFD_RELOC_PPC_TPREL16_HI:
6113 case BFD_RELOC_PPC_TPREL16_HA:
6114 case BFD_RELOC_PPC_TPREL:
6115 case BFD_RELOC_PPC_DTPREL16:
6116 case BFD_RELOC_PPC_DTPREL16_LO:
6117 case BFD_RELOC_PPC_DTPREL16_HI:
6118 case BFD_RELOC_PPC_DTPREL16_HA:
6119 case BFD_RELOC_PPC_DTPREL:
6120 case BFD_RELOC_PPC_GOT_TLSGD16:
6121 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6122 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6123 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6124 case BFD_RELOC_PPC_GOT_TLSLD16:
6125 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6126 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6127 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6128 case BFD_RELOC_PPC_GOT_TPREL16:
6129 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6130 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6131 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6132 case BFD_RELOC_PPC_GOT_DTPREL16:
6133 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6134 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6135 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6136 case BFD_RELOC_PPC64_TPREL16_DS:
6137 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6138 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6139 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6140 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6141 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6142 case BFD_RELOC_PPC64_DTPREL16_DS:
6143 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6144 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6145 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6146 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6147 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6148 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6151 /* Because SDA21 modifies the register field, the size is set to 4
6152 bytes, rather than 2, so offset it here appropriately. */
6153 case BFD_RELOC_PPC_EMB_SDA21:
6157 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6158 + ((target_big_endian) ? 2 : 0),
6165 /* This can occur if there is a bug in the input assembler, eg:
6166 ".byte <undefined_symbol> - ." */
6168 as_bad (_("Unable to handle reference to symbol %s"),
6169 S_GET_NAME (fixP->fx_addsy));
6171 as_bad (_("Unable to resolve expression"));
6175 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6179 case BFD_RELOC_24_PLT_PCREL:
6180 case BFD_RELOC_PPC_LOCAL24PC:
6181 if (!fixP->fx_pcrel && !fixP->fx_done)
6189 /* Fetch the instruction, insert the fully resolved operand
6190 value, and stuff the instruction back again. */
6191 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6192 if (target_big_endian)
6193 insn = bfd_getb32 ((unsigned char *) where);
6195 insn = bfd_getl32 ((unsigned char *) where);
6196 if ((value & 3) != 0)
6197 as_bad_where (fixP->fx_file, fixP->fx_line,
6198 _("must branch to an address a multiple of 4"));
6199 if ((offsetT) value < -0x40000000
6200 || (offsetT) value >= 0x40000000)
6201 as_bad_where (fixP->fx_file, fixP->fx_line,
6202 _("@local or @plt branch destination is too far away, %ld bytes"),
6204 insn = insn | (value & 0x03fffffc);
6205 if (target_big_endian)
6206 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6208 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6212 case BFD_RELOC_VTABLE_INHERIT:
6215 && !S_IS_DEFINED (fixP->fx_addsy)
6216 && !S_IS_WEAK (fixP->fx_addsy))
6217 S_SET_WEAK (fixP->fx_addsy);
6220 case BFD_RELOC_VTABLE_ENTRY:
6225 /* Generated by reference to `sym@tocbase'. The sym is
6226 ignored by the linker. */
6227 case BFD_RELOC_PPC64_TOC:
6233 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6240 fixP->fx_addnumber = value;
6242 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6243 from the section contents. If we are going to be emitting a reloc
6244 then the section contents are immaterial, so don't warn if they
6245 happen to overflow. Leave such warnings to ld. */
6247 fixP->fx_no_overflow = 1;
6249 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6250 fixP->fx_addnumber = 0;
6254 fixP->fx_addnumber = 0;
6256 /* We want to use the offset within the toc, not the actual VMA
6258 fixP->fx_addnumber =
6259 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6260 - S_GET_VALUE (ppc_toc_csect);
6266 /* Generate a reloc for a fixup. */
6269 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6273 reloc = (arelent *) xmalloc (sizeof (arelent));
6275 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6276 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6277 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6278 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6279 if (reloc->howto == (reloc_howto_type *) NULL)
6281 as_bad_where (fixp->fx_file, fixp->fx_line,
6282 _("reloc %d not supported by object file format"),
6283 (int) fixp->fx_r_type);
6286 reloc->addend = fixp->fx_addnumber;
6292 ppc_cfi_frame_initial_instructions (void)
6294 cfi_add_CFA_def_cfa (1, 0);
6298 tc_ppc_regname_to_dw2regnum (char *regname)
6300 unsigned int regnum = -1;
6304 static struct { char *name; int dw2regnum; } regnames[] =
6306 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6307 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6308 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6309 { "spe_acc", 111 }, { "spefscr", 112 }
6312 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6313 if (strcmp (regnames[i].name, regname) == 0)
6314 return regnames[i].dw2regnum;
6316 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6318 p = regname + 1 + (regname[1] == '.');
6319 regnum = strtoul (p, &q, 10);
6320 if (p == q || *q || regnum >= 32)
6322 if (regname[0] == 'f')
6324 else if (regname[0] == 'v')
6327 else if (regname[0] == 'c' && regname[1] == 'r')
6329 p = regname + 2 + (regname[2] == '.');
6330 if (p[0] < '0' || p[0] > '7' || p[1])
6332 regnum = p[0] - '0' + 68;