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 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 -mspe generate code for Motorola SPE instructions\n\
1214 -mregnames Allow symbolic names for registers\n\
1215 -mno-regnames Do not allow symbolic names for registers\n"));
1217 fprintf (stream, _("\
1218 -mrelocatable support for GCC's -mrelocatble option\n\
1219 -mrelocatable-lib support for GCC's -mrelocatble-lib option\n\
1220 -memb set PPC_EMB bit in ELF flags\n\
1221 -mlittle, -mlittle-endian, -l, -le\n\
1222 generate code for a little endian machine\n\
1223 -mbig, -mbig-endian, -b, -be\n\
1224 generate code for a big endian machine\n\
1225 -msolaris generate code for Solaris\n\
1226 -mno-solaris do not generate code for Solaris\n\
1227 -V print assembler version number\n\
1228 -Qy, -Qn ignored\n"));
1232 /* Set ppc_cpu if it is not already set. */
1237 const char *default_os = TARGET_OS;
1238 const char *default_cpu = TARGET_CPU;
1240 if ((ppc_cpu & ~PPC_OPCODE_ANY) == 0)
1243 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_64;
1244 else if (strncmp (default_os, "aix", 3) == 0
1245 && default_os[3] >= '4' && default_os[3] <= '9')
1246 ppc_cpu |= PPC_OPCODE_COMMON | PPC_OPCODE_32;
1247 else if (strncmp (default_os, "aix3", 4) == 0)
1248 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1249 else if (strcmp (default_cpu, "rs6000") == 0)
1250 ppc_cpu |= PPC_OPCODE_POWER | PPC_OPCODE_32;
1251 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1252 ppc_cpu |= PPC_OPCODE_PPC | PPC_OPCODE_CLASSIC | PPC_OPCODE_32;
1254 as_fatal (_("Unknown default cpu = %s, os = %s"),
1255 default_cpu, default_os);
1259 /* Figure out the BFD architecture to use. This function and ppc_mach
1260 are called well before md_begin, when the output file is opened. */
1262 enum bfd_architecture
1265 const char *default_cpu = TARGET_CPU;
1268 if ((ppc_cpu & PPC_OPCODE_PPC) != 0)
1269 return bfd_arch_powerpc;
1270 else if ((ppc_cpu & PPC_OPCODE_POWER) != 0)
1271 return bfd_arch_rs6000;
1272 else if ((ppc_cpu & (PPC_OPCODE_COMMON | PPC_OPCODE_ANY)) != 0)
1274 if (strcmp (default_cpu, "rs6000") == 0)
1275 return bfd_arch_rs6000;
1276 else if (strncmp (default_cpu, "powerpc", 7) == 0)
1277 return bfd_arch_powerpc;
1280 as_fatal (_("Neither Power nor PowerPC opcodes were selected."));
1281 return bfd_arch_unknown;
1288 return bfd_mach_ppc64;
1289 else if (ppc_arch () == bfd_arch_rs6000)
1290 return bfd_mach_rs6k;
1292 return bfd_mach_ppc;
1296 ppc_target_format (void)
1300 return target_big_endian ? "pe-powerpc" : "pe-powerpcle";
1302 return "xcoff-powermac";
1305 return (ppc_obj64 ? "aix5coff64-rs6000" : "aixcoff-rs6000");
1307 return (ppc_obj64 ? "aixcoff64-rs6000" : "aixcoff-rs6000");
1313 return "elf32-powerpc-vxworks";
1315 return (target_big_endian
1316 ? (ppc_obj64 ? "elf64-powerpc" : "elf32-powerpc")
1317 : (ppc_obj64 ? "elf64-powerpcle" : "elf32-powerpcle"));
1322 /* Insert opcodes and macros into hash tables. Called at startup and
1326 ppc_setup_opcodes (void)
1328 const struct powerpc_opcode *op;
1329 const struct powerpc_opcode *op_end;
1330 const struct powerpc_macro *macro;
1331 const struct powerpc_macro *macro_end;
1332 bfd_boolean bad_insn = FALSE;
1334 if (ppc_hash != NULL)
1335 hash_die (ppc_hash);
1336 if (ppc_macro_hash != NULL)
1337 hash_die (ppc_macro_hash);
1339 /* Insert the opcodes into a hash table. */
1340 ppc_hash = hash_new ();
1342 if (ENABLE_CHECKING)
1346 /* Check operand masks. Code here and in the disassembler assumes
1347 all the 1's in the mask are contiguous. */
1348 for (i = 0; i < num_powerpc_operands; ++i)
1350 unsigned long mask = powerpc_operands[i].bitm;
1351 unsigned long right_bit;
1354 right_bit = mask & -mask;
1356 right_bit = mask & -mask;
1357 if (mask != right_bit)
1359 as_bad (_("powerpc_operands[%d].bitm invalid"), i);
1362 for (j = i + 1; j < num_powerpc_operands; ++j)
1363 if (memcmp (&powerpc_operands[i], &powerpc_operands[j],
1364 sizeof (powerpc_operands[0])) == 0)
1366 as_bad (_("powerpc_operands[%d] duplicates powerpc_operands[%d]"),
1373 op_end = powerpc_opcodes + powerpc_num_opcodes;
1374 for (op = powerpc_opcodes; op < op_end; op++)
1376 if (ENABLE_CHECKING)
1378 const unsigned char *o;
1379 unsigned long omask = op->mask;
1381 if (op != powerpc_opcodes)
1383 /* The major opcodes had better be sorted. Code in the
1384 disassembler assumes the insns are sorted according to
1386 if (PPC_OP (op[0].opcode) < PPC_OP (op[-1].opcode))
1388 as_bad (_("major opcode is not sorted for %s"),
1393 /* Warn if the table isn't more strictly ordered.
1394 Unfortunately it doesn't seem possible to order the
1395 table on much more than the major opcode, which makes
1396 it difficult to implement a binary search in the
1397 disassembler. The problem is that we have multiple
1398 ways to disassemble instructions, and we usually want
1399 to choose a more specific form (with more bits set in
1400 the opcode) than a more general form. eg. all of the
1401 following are equivalent:
1402 bne label # opcode = 0x40820000, mask = 0xff830003
1403 bf 2,label # opcode = 0x40800000, mask = 0xff800003
1404 bc 4,2,label # opcode = 0x40000000, mask = 0xfc000003
1406 There are also cases where the table needs to be out
1407 of order to disassemble the correct instruction for
1408 processor variants. */
1411 unsigned long t1 = op[0].opcode;
1412 unsigned long t2 = op[-1].opcode;
1414 if (((t1 ^ t2) & 0xfc0007ff) == 0
1415 && (t1 & 0xfc0006df) == 0x7c000286)
1417 /* spr field is split. */
1418 t1 = ((t1 & ~0x1ff800)
1419 | ((t1 & 0xf800) << 5) | ((t1 & 0x1f0000) >> 5));
1420 t2 = ((t2 & ~0x1ff800)
1421 | ((t2 & 0xf800) << 5) | ((t2 & 0x1f0000) >> 5));
1424 as_warn (_("%s (%08lx %08lx) after %s (%08lx %08lx)"),
1425 op[0].name, op[0].opcode, op[0].mask,
1426 op[-1].name, op[-1].opcode, op[-1].mask);
1430 /* The mask had better not trim off opcode bits. */
1431 if ((op->opcode & omask) != op->opcode)
1433 as_bad (_("mask trims opcode bits for %s"),
1438 /* The operands must not overlap the opcode or each other. */
1439 for (o = op->operands; *o; ++o)
1440 if (*o >= num_powerpc_operands)
1442 as_bad (_("operand index error for %s"),
1448 const struct powerpc_operand *operand = &powerpc_operands[*o];
1449 if (operand->shift >= 0)
1451 unsigned long mask = operand->bitm << operand->shift;
1454 as_bad (_("operand %d overlap in %s"),
1455 (int) (o - op->operands), op->name);
1463 if ((op->flags & ppc_cpu & ~(PPC_OPCODE_32 | PPC_OPCODE_64)) != 0
1464 && ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64)) == 0
1465 || ((op->flags & (PPC_OPCODE_32 | PPC_OPCODE_64))
1466 == (ppc_cpu & (PPC_OPCODE_32 | PPC_OPCODE_64)))
1467 || (ppc_cpu & PPC_OPCODE_64_BRIDGE) != 0)
1468 && !(ppc_cpu & op->deprecated))
1472 retval = hash_insert (ppc_hash, op->name, (void *) op);
1475 /* Ignore Power duplicates for -m601. */
1476 if ((ppc_cpu & PPC_OPCODE_601) != 0
1477 && (op->flags & PPC_OPCODE_POWER) != 0)
1480 as_bad (_("duplicate instruction %s"),
1487 if ((ppc_cpu & PPC_OPCODE_ANY) != 0)
1488 for (op = powerpc_opcodes; op < op_end; op++)
1489 hash_insert (ppc_hash, op->name, (void *) op);
1491 /* Insert the macros into a hash table. */
1492 ppc_macro_hash = hash_new ();
1494 macro_end = powerpc_macros + powerpc_num_macros;
1495 for (macro = powerpc_macros; macro < macro_end; macro++)
1497 if ((macro->flags & ppc_cpu) != 0)
1501 retval = hash_insert (ppc_macro_hash, macro->name, (void *) macro);
1502 if (retval != (const char *) NULL)
1504 as_bad (_("duplicate macro %s"), macro->name);
1514 /* This function is called when the assembler starts up. It is called
1515 after the options have been parsed and the output file has been
1523 ppc_cie_data_alignment = ppc_obj64 ? -8 : -4;
1526 /* Set the ELF flags if desired. */
1527 if (ppc_flags && !msolaris)
1528 bfd_set_private_flags (stdoutput, ppc_flags);
1531 ppc_setup_opcodes ();
1533 /* Tell the main code what the endianness is if it is not overridden
1535 if (!set_target_endian)
1537 set_target_endian = 1;
1538 target_big_endian = PPC_BIG_ENDIAN;
1542 ppc_coff_debug_section = coff_section_from_bfd_index (stdoutput, N_DEBUG);
1544 /* Create dummy symbols to serve as initial csects. This forces the
1545 text csects to precede the data csects. These symbols will not
1547 ppc_text_csects = symbol_make ("dummy\001");
1548 symbol_get_tc (ppc_text_csects)->within = ppc_text_csects;
1549 ppc_data_csects = symbol_make ("dummy\001");
1550 symbol_get_tc (ppc_data_csects)->within = ppc_data_csects;
1555 ppc_current_section = text_section;
1556 ppc_previous_section = 0;
1565 if (ppc_apuinfo_list == NULL)
1568 /* Ok, so write the section info out. We have this layout:
1572 0 8 length of "APUinfo\0"
1573 4 (n*4) number of APU's (4 bytes each)
1576 20 APU#1 first APU's info
1577 24 APU#2 second APU's info
1582 asection *seg = now_seg;
1583 subsegT subseg = now_subseg;
1584 asection *apuinfo_secp = (asection *) NULL;
1587 /* Create the .PPC.EMB.apuinfo section. */
1588 apuinfo_secp = subseg_new (".PPC.EMB.apuinfo", 0);
1589 bfd_set_section_flags (stdoutput,
1591 SEC_HAS_CONTENTS | SEC_READONLY);
1594 md_number_to_chars (p, (valueT) 8, 4);
1597 md_number_to_chars (p, (valueT) ppc_apuinfo_num * 4, 4);
1600 md_number_to_chars (p, (valueT) 2, 4);
1603 strcpy (p, "APUinfo");
1605 for (i = 0; i < ppc_apuinfo_num; i++)
1608 md_number_to_chars (p, (valueT) ppc_apuinfo_list[i], 4);
1611 frag_align (2, 0, 0);
1613 /* We probably can't restore the current segment, for there likely
1616 subseg_set (seg, subseg);
1621 /* Insert an operand value into an instruction. */
1623 static unsigned long
1624 ppc_insert_operand (unsigned long insn,
1625 const struct powerpc_operand *operand,
1631 long min, max, right;
1633 max = operand->bitm;
1637 if ((operand->flags & PPC_OPERAND_SIGNED) != 0)
1639 if ((operand->flags & PPC_OPERAND_SIGNOPT) == 0)
1640 max = (max >> 1) & -right;
1641 min = ~max & -right;
1644 if ((operand->flags & PPC_OPERAND_PLUS1) != 0)
1647 if ((operand->flags & PPC_OPERAND_NEGATIVE) != 0)
1656 /* Some people write constants with the sign extension done by
1657 hand but only up to 32 bits. This shouldn't really be valid,
1658 but, to permit this code to assemble on a 64-bit host, we
1659 sign extend the 32-bit value to 64 bits if so doing makes the
1662 && (offsetT) (val - 0x80000000 - 0x80000000) >= min
1663 && (offsetT) (val - 0x80000000 - 0x80000000) <= max
1664 && ((val - 0x80000000 - 0x80000000) & (right - 1)) == 0)
1665 val = val - 0x80000000 - 0x80000000;
1667 /* Similarly, people write expressions like ~(1<<15), and expect
1668 this to be OK for a 32-bit unsigned value. */
1670 && (offsetT) (val + 0x80000000 + 0x80000000) >= min
1671 && (offsetT) (val + 0x80000000 + 0x80000000) <= max
1672 && ((val + 0x80000000 + 0x80000000) & (right - 1)) == 0)
1673 val = val + 0x80000000 + 0x80000000;
1677 || (val & (right - 1)) != 0)
1678 as_bad_value_out_of_range (_("operand"), val, min, max, file, line);
1681 if (operand->insert)
1686 insn = (*operand->insert) (insn, (long) val, cpu, &errmsg);
1687 if (errmsg != (const char *) NULL)
1688 as_bad_where (file, line, "%s", errmsg);
1691 insn |= ((long) val & operand->bitm) << operand->shift;
1698 /* Parse @got, etc. and return the desired relocation. */
1699 static bfd_reloc_code_real_type
1700 ppc_elf_suffix (char **str_p, expressionS *exp_p)
1704 unsigned int length : 8;
1705 unsigned int valid32 : 1;
1706 unsigned int valid64 : 1;
1715 const struct map_bfd *ptr;
1717 #define MAP(str, reloc) { str, sizeof (str) - 1, 1, 1, reloc }
1718 #define MAP32(str, reloc) { str, sizeof (str) - 1, 1, 0, reloc }
1719 #define MAP64(str, reloc) { str, sizeof (str) - 1, 0, 1, reloc }
1721 static const struct map_bfd mapping[] = {
1722 MAP ("l", BFD_RELOC_LO16),
1723 MAP ("h", BFD_RELOC_HI16),
1724 MAP ("ha", BFD_RELOC_HI16_S),
1725 MAP ("brtaken", BFD_RELOC_PPC_B16_BRTAKEN),
1726 MAP ("brntaken", BFD_RELOC_PPC_B16_BRNTAKEN),
1727 MAP ("got", BFD_RELOC_16_GOTOFF),
1728 MAP ("got@l", BFD_RELOC_LO16_GOTOFF),
1729 MAP ("got@h", BFD_RELOC_HI16_GOTOFF),
1730 MAP ("got@ha", BFD_RELOC_HI16_S_GOTOFF),
1731 MAP ("plt@l", BFD_RELOC_LO16_PLTOFF),
1732 MAP ("plt@h", BFD_RELOC_HI16_PLTOFF),
1733 MAP ("plt@ha", BFD_RELOC_HI16_S_PLTOFF),
1734 MAP ("copy", BFD_RELOC_PPC_COPY),
1735 MAP ("globdat", BFD_RELOC_PPC_GLOB_DAT),
1736 MAP ("sectoff", BFD_RELOC_16_BASEREL),
1737 MAP ("sectoff@l", BFD_RELOC_LO16_BASEREL),
1738 MAP ("sectoff@h", BFD_RELOC_HI16_BASEREL),
1739 MAP ("sectoff@ha", BFD_RELOC_HI16_S_BASEREL),
1740 MAP ("tls", BFD_RELOC_PPC_TLS),
1741 MAP ("dtpmod", BFD_RELOC_PPC_DTPMOD),
1742 MAP ("dtprel", BFD_RELOC_PPC_DTPREL),
1743 MAP ("dtprel@l", BFD_RELOC_PPC_DTPREL16_LO),
1744 MAP ("dtprel@h", BFD_RELOC_PPC_DTPREL16_HI),
1745 MAP ("dtprel@ha", BFD_RELOC_PPC_DTPREL16_HA),
1746 MAP ("tprel", BFD_RELOC_PPC_TPREL),
1747 MAP ("tprel@l", BFD_RELOC_PPC_TPREL16_LO),
1748 MAP ("tprel@h", BFD_RELOC_PPC_TPREL16_HI),
1749 MAP ("tprel@ha", BFD_RELOC_PPC_TPREL16_HA),
1750 MAP ("got@tlsgd", BFD_RELOC_PPC_GOT_TLSGD16),
1751 MAP ("got@tlsgd@l", BFD_RELOC_PPC_GOT_TLSGD16_LO),
1752 MAP ("got@tlsgd@h", BFD_RELOC_PPC_GOT_TLSGD16_HI),
1753 MAP ("got@tlsgd@ha", BFD_RELOC_PPC_GOT_TLSGD16_HA),
1754 MAP ("got@tlsld", BFD_RELOC_PPC_GOT_TLSLD16),
1755 MAP ("got@tlsld@l", BFD_RELOC_PPC_GOT_TLSLD16_LO),
1756 MAP ("got@tlsld@h", BFD_RELOC_PPC_GOT_TLSLD16_HI),
1757 MAP ("got@tlsld@ha", BFD_RELOC_PPC_GOT_TLSLD16_HA),
1758 MAP ("got@dtprel", BFD_RELOC_PPC_GOT_DTPREL16),
1759 MAP ("got@dtprel@l", BFD_RELOC_PPC_GOT_DTPREL16_LO),
1760 MAP ("got@dtprel@h", BFD_RELOC_PPC_GOT_DTPREL16_HI),
1761 MAP ("got@dtprel@ha", BFD_RELOC_PPC_GOT_DTPREL16_HA),
1762 MAP ("got@tprel", BFD_RELOC_PPC_GOT_TPREL16),
1763 MAP ("got@tprel@l", BFD_RELOC_PPC_GOT_TPREL16_LO),
1764 MAP ("got@tprel@h", BFD_RELOC_PPC_GOT_TPREL16_HI),
1765 MAP ("got@tprel@ha", BFD_RELOC_PPC_GOT_TPREL16_HA),
1766 MAP32 ("fixup", BFD_RELOC_CTOR),
1767 MAP32 ("plt", BFD_RELOC_24_PLT_PCREL),
1768 MAP32 ("pltrel24", BFD_RELOC_24_PLT_PCREL),
1769 MAP32 ("local24pc", BFD_RELOC_PPC_LOCAL24PC),
1770 MAP32 ("local", BFD_RELOC_PPC_LOCAL24PC),
1771 MAP32 ("pltrel", BFD_RELOC_32_PLT_PCREL),
1772 MAP32 ("sdarel", BFD_RELOC_GPREL16),
1773 MAP32 ("naddr", BFD_RELOC_PPC_EMB_NADDR32),
1774 MAP32 ("naddr16", BFD_RELOC_PPC_EMB_NADDR16),
1775 MAP32 ("naddr@l", BFD_RELOC_PPC_EMB_NADDR16_LO),
1776 MAP32 ("naddr@h", BFD_RELOC_PPC_EMB_NADDR16_HI),
1777 MAP32 ("naddr@ha", BFD_RELOC_PPC_EMB_NADDR16_HA),
1778 MAP32 ("sdai16", BFD_RELOC_PPC_EMB_SDAI16),
1779 MAP32 ("sda2rel", BFD_RELOC_PPC_EMB_SDA2REL),
1780 MAP32 ("sda2i16", BFD_RELOC_PPC_EMB_SDA2I16),
1781 MAP32 ("sda21", BFD_RELOC_PPC_EMB_SDA21),
1782 MAP32 ("mrkref", BFD_RELOC_PPC_EMB_MRKREF),
1783 MAP32 ("relsect", BFD_RELOC_PPC_EMB_RELSEC16),
1784 MAP32 ("relsect@l", BFD_RELOC_PPC_EMB_RELST_LO),
1785 MAP32 ("relsect@h", BFD_RELOC_PPC_EMB_RELST_HI),
1786 MAP32 ("relsect@ha", BFD_RELOC_PPC_EMB_RELST_HA),
1787 MAP32 ("bitfld", BFD_RELOC_PPC_EMB_BIT_FLD),
1788 MAP32 ("relsda", BFD_RELOC_PPC_EMB_RELSDA),
1789 MAP32 ("xgot", BFD_RELOC_PPC_TOC16),
1790 MAP64 ("higher", BFD_RELOC_PPC64_HIGHER),
1791 MAP64 ("highera", BFD_RELOC_PPC64_HIGHER_S),
1792 MAP64 ("highest", BFD_RELOC_PPC64_HIGHEST),
1793 MAP64 ("highesta", BFD_RELOC_PPC64_HIGHEST_S),
1794 MAP64 ("tocbase", BFD_RELOC_PPC64_TOC),
1795 MAP64 ("toc", BFD_RELOC_PPC_TOC16),
1796 MAP64 ("toc@l", BFD_RELOC_PPC64_TOC16_LO),
1797 MAP64 ("toc@h", BFD_RELOC_PPC64_TOC16_HI),
1798 MAP64 ("toc@ha", BFD_RELOC_PPC64_TOC16_HA),
1799 MAP64 ("dtprel@higher", BFD_RELOC_PPC64_DTPREL16_HIGHER),
1800 MAP64 ("dtprel@highera", BFD_RELOC_PPC64_DTPREL16_HIGHERA),
1801 MAP64 ("dtprel@highest", BFD_RELOC_PPC64_DTPREL16_HIGHEST),
1802 MAP64 ("dtprel@highesta", BFD_RELOC_PPC64_DTPREL16_HIGHESTA),
1803 MAP64 ("tprel@higher", BFD_RELOC_PPC64_TPREL16_HIGHER),
1804 MAP64 ("tprel@highera", BFD_RELOC_PPC64_TPREL16_HIGHERA),
1805 MAP64 ("tprel@highest", BFD_RELOC_PPC64_TPREL16_HIGHEST),
1806 MAP64 ("tprel@highesta", BFD_RELOC_PPC64_TPREL16_HIGHESTA),
1807 { (char *) 0, 0, 0, 0, BFD_RELOC_UNUSED }
1811 return BFD_RELOC_UNUSED;
1813 for (ch = *str, str2 = ident;
1814 (str2 < ident + sizeof (ident) - 1
1815 && (ISALNUM (ch) || ch == '@'));
1818 *str2++ = TOLOWER (ch);
1825 for (ptr = &mapping[0]; ptr->length > 0; ptr++)
1826 if (ch == ptr->string[0]
1827 && len == ptr->length
1828 && memcmp (ident, ptr->string, ptr->length) == 0
1829 && (ppc_obj64 ? ptr->valid64 : ptr->valid32))
1831 int reloc = ptr->reloc;
1833 if (!ppc_obj64 && exp_p->X_add_number != 0)
1837 case BFD_RELOC_16_GOTOFF:
1838 case BFD_RELOC_LO16_GOTOFF:
1839 case BFD_RELOC_HI16_GOTOFF:
1840 case BFD_RELOC_HI16_S_GOTOFF:
1841 as_warn (_("identifier+constant@got means "
1842 "identifier@got+constant"));
1845 case BFD_RELOC_PPC_GOT_TLSGD16:
1846 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
1847 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
1848 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
1849 case BFD_RELOC_PPC_GOT_TLSLD16:
1850 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
1851 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
1852 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
1853 case BFD_RELOC_PPC_GOT_DTPREL16:
1854 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
1855 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
1856 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
1857 case BFD_RELOC_PPC_GOT_TPREL16:
1858 case BFD_RELOC_PPC_GOT_TPREL16_LO:
1859 case BFD_RELOC_PPC_GOT_TPREL16_HI:
1860 case BFD_RELOC_PPC_GOT_TPREL16_HA:
1861 as_bad (_("symbol+offset not supported for got tls"));
1866 /* Now check for identifier@suffix+constant. */
1867 if (*str == '-' || *str == '+')
1869 char *orig_line = input_line_pointer;
1870 expressionS new_exp;
1872 input_line_pointer = str;
1873 expression (&new_exp);
1874 if (new_exp.X_op == O_constant)
1876 exp_p->X_add_number += new_exp.X_add_number;
1877 str = input_line_pointer;
1880 if (&input_line_pointer != str_p)
1881 input_line_pointer = orig_line;
1885 if (reloc == (int) BFD_RELOC_PPC64_TOC
1886 && exp_p->X_op == O_symbol
1887 && strcmp (S_GET_NAME (exp_p->X_add_symbol), ".TOC.") == 0)
1889 /* Change the symbol so that the dummy .TOC. symbol can be
1890 omitted from the object file. */
1891 exp_p->X_add_symbol = &abs_symbol;
1894 return (bfd_reloc_code_real_type) reloc;
1897 return BFD_RELOC_UNUSED;
1900 /* Like normal .long/.short/.word, except support @got, etc.
1901 Clobbers input_line_pointer, checks end-of-line. */
1903 ppc_elf_cons (int nbytes /* 1=.byte, 2=.word, 4=.long, 8=.llong */)
1906 bfd_reloc_code_real_type reloc;
1908 if (is_it_end_of_statement ())
1910 demand_empty_rest_of_line ();
1917 if (exp.X_op == O_symbol
1918 && *input_line_pointer == '@'
1919 && (reloc = ppc_elf_suffix (&input_line_pointer,
1920 &exp)) != BFD_RELOC_UNUSED)
1922 reloc_howto_type *reloc_howto;
1925 reloc_howto = bfd_reloc_type_lookup (stdoutput, reloc);
1926 size = bfd_get_reloc_size (reloc_howto);
1930 as_bad (_("%s relocations do not fit in %d bytes\n"),
1931 reloc_howto->name, nbytes);
1938 p = frag_more (nbytes);
1940 if (target_big_endian)
1941 offset = nbytes - size;
1942 fix_new_exp (frag_now, p - frag_now->fr_literal + offset, size,
1947 emit_expr (&exp, (unsigned int) nbytes);
1949 while (*input_line_pointer++ == ',');
1951 /* Put terminator back into stream. */
1952 input_line_pointer--;
1953 demand_empty_rest_of_line ();
1956 /* Solaris pseduo op to change to the .rodata section. */
1958 ppc_elf_rdata (int xxx)
1960 char *save_line = input_line_pointer;
1961 static char section[] = ".rodata\n";
1963 /* Just pretend this is .section .rodata */
1964 input_line_pointer = section;
1965 obj_elf_section (xxx);
1967 input_line_pointer = save_line;
1970 /* Pseudo op to make file scope bss items. */
1972 ppc_elf_lcomm (int xxx ATTRIBUTE_UNUSED)
1985 name = input_line_pointer;
1986 c = get_symbol_end ();
1988 /* just after name is now '\0'. */
1989 p = input_line_pointer;
1992 if (*input_line_pointer != ',')
1994 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
1995 ignore_rest_of_line ();
1999 input_line_pointer++; /* skip ',' */
2000 if ((size = get_absolute_expression ()) < 0)
2002 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) size);
2003 ignore_rest_of_line ();
2007 /* The third argument to .lcomm is the alignment. */
2008 if (*input_line_pointer != ',')
2012 ++input_line_pointer;
2013 align = get_absolute_expression ();
2016 as_warn (_("ignoring bad alignment"));
2022 symbolP = symbol_find_or_make (name);
2025 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
2027 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
2028 S_GET_NAME (symbolP));
2029 ignore_rest_of_line ();
2033 if (S_GET_VALUE (symbolP) && S_GET_VALUE (symbolP) != (valueT) size)
2035 as_bad (_("Length of .lcomm \"%s\" is already %ld. Not changed to %ld."),
2036 S_GET_NAME (symbolP),
2037 (long) S_GET_VALUE (symbolP),
2040 ignore_rest_of_line ();
2046 old_subsec = now_subseg;
2049 /* Convert to a power of 2 alignment. */
2050 for (align2 = 0; (align & 1) == 0; align >>= 1, ++align2);
2053 as_bad (_("Common alignment not a power of 2"));
2054 ignore_rest_of_line ();
2061 record_alignment (bss_section, align2);
2062 subseg_set (bss_section, 0);
2064 frag_align (align2, 0, 0);
2065 if (S_GET_SEGMENT (symbolP) == bss_section)
2066 symbol_get_frag (symbolP)->fr_symbol = 0;
2067 symbol_set_frag (symbolP, frag_now);
2068 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, symbolP, size,
2071 S_SET_SIZE (symbolP, size);
2072 S_SET_SEGMENT (symbolP, bss_section);
2073 subseg_set (old_sec, old_subsec);
2074 demand_empty_rest_of_line ();
2077 /* Validate any relocations emitted for -mrelocatable, possibly adding
2078 fixups for word relocations in writable segments, so we can adjust
2081 ppc_elf_validate_fix (fixS *fixp, segT seg)
2083 if (fixp->fx_done || fixp->fx_pcrel)
2092 case SHLIB_MRELOCATABLE:
2093 if (fixp->fx_r_type <= BFD_RELOC_UNUSED
2094 && fixp->fx_r_type != BFD_RELOC_16_GOTOFF
2095 && fixp->fx_r_type != BFD_RELOC_HI16_GOTOFF
2096 && fixp->fx_r_type != BFD_RELOC_LO16_GOTOFF
2097 && fixp->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
2098 && fixp->fx_r_type != BFD_RELOC_16_BASEREL
2099 && fixp->fx_r_type != BFD_RELOC_LO16_BASEREL
2100 && fixp->fx_r_type != BFD_RELOC_HI16_BASEREL
2101 && fixp->fx_r_type != BFD_RELOC_HI16_S_BASEREL
2102 && (seg->flags & SEC_LOAD) != 0
2103 && strcmp (segment_name (seg), ".got2") != 0
2104 && strcmp (segment_name (seg), ".dtors") != 0
2105 && strcmp (segment_name (seg), ".ctors") != 0
2106 && strcmp (segment_name (seg), ".fixup") != 0
2107 && strcmp (segment_name (seg), ".gcc_except_table") != 0
2108 && strcmp (segment_name (seg), ".eh_frame") != 0
2109 && strcmp (segment_name (seg), ".ex_shared") != 0)
2111 if ((seg->flags & (SEC_READONLY | SEC_CODE)) != 0
2112 || fixp->fx_r_type != BFD_RELOC_CTOR)
2114 as_bad_where (fixp->fx_file, fixp->fx_line,
2115 _("Relocation cannot be done when using -mrelocatable"));
2122 /* Prevent elf_frob_file_before_adjust removing a weak undefined
2123 function descriptor sym if the corresponding code sym is used. */
2126 ppc_frob_file_before_adjust (void)
2134 for (symp = symbol_rootP; symp; symp = symbol_next (symp))
2141 name = S_GET_NAME (symp);
2145 if (! S_IS_WEAK (symp)
2146 || S_IS_DEFINED (symp))
2149 len = strlen (name) + 1;
2150 dotname = xmalloc (len + 1);
2152 memcpy (dotname + 1, name, len);
2153 dotsym = symbol_find_noref (dotname, 1);
2155 if (dotsym != NULL && (symbol_used_p (dotsym)
2156 || symbol_used_in_reloc_p (dotsym)))
2157 symbol_mark_used (symp);
2161 toc = bfd_get_section_by_name (stdoutput, ".toc");
2163 && bfd_section_size (stdoutput, toc) > 0x10000)
2164 as_warn (_("TOC section size exceeds 64k"));
2166 /* Don't emit .TOC. symbol. */
2167 symp = symbol_find (".TOC.");
2169 symbol_remove (symp, &symbol_rootP, &symbol_lastP);
2171 #endif /* OBJ_ELF */
2176 * Summary of parse_toc_entry.
2178 * in: Input_line_pointer points to the '[' in one of:
2180 * [toc] [tocv] [toc32] [toc64]
2182 * Anything else is an error of one kind or another.
2185 * return value: success or failure
2186 * toc_kind: kind of toc reference
2187 * input_line_pointer:
2188 * success: first char after the ']'
2189 * failure: unchanged
2193 * [toc] - rv == success, toc_kind = default_toc
2194 * [tocv] - rv == success, toc_kind = data_in_toc
2195 * [toc32] - rv == success, toc_kind = must_be_32
2196 * [toc64] - rv == success, toc_kind = must_be_64
2200 enum toc_size_qualifier
2202 default_toc, /* The toc cell constructed should be the system default size */
2203 data_in_toc, /* This is a direct reference to a toc cell */
2204 must_be_32, /* The toc cell constructed must be 32 bits wide */
2205 must_be_64 /* The toc cell constructed must be 64 bits wide */
2209 parse_toc_entry (enum toc_size_qualifier *toc_kind)
2214 enum toc_size_qualifier t;
2216 /* Save the input_line_pointer. */
2217 start = input_line_pointer;
2219 /* Skip over the '[' , and whitespace. */
2220 ++input_line_pointer;
2223 /* Find the spelling of the operand. */
2224 toc_spec = input_line_pointer;
2225 c = get_symbol_end ();
2227 if (strcmp (toc_spec, "toc") == 0)
2231 else if (strcmp (toc_spec, "tocv") == 0)
2235 else if (strcmp (toc_spec, "toc32") == 0)
2239 else if (strcmp (toc_spec, "toc64") == 0)
2245 as_bad (_("syntax error: invalid toc specifier `%s'"), toc_spec);
2246 *input_line_pointer = c;
2247 input_line_pointer = start;
2251 /* Now find the ']'. */
2252 *input_line_pointer = c;
2254 SKIP_WHITESPACE (); /* leading whitespace could be there. */
2255 c = *input_line_pointer++; /* input_line_pointer->past char in c. */
2259 as_bad (_("syntax error: expected `]', found `%c'"), c);
2260 input_line_pointer = start;
2271 #define APUID(a,v) ((((a) & 0xffff) << 16) | ((v) & 0xffff))
2273 ppc_apuinfo_section_add (unsigned int apu, unsigned int version)
2277 /* Check we don't already exist. */
2278 for (i = 0; i < ppc_apuinfo_num; i++)
2279 if (ppc_apuinfo_list[i] == APUID (apu, version))
2282 if (ppc_apuinfo_num == ppc_apuinfo_num_alloc)
2284 if (ppc_apuinfo_num_alloc == 0)
2286 ppc_apuinfo_num_alloc = 4;
2287 ppc_apuinfo_list = (unsigned long *)
2288 xmalloc (sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2292 ppc_apuinfo_num_alloc += 4;
2293 ppc_apuinfo_list = (unsigned long *) xrealloc (ppc_apuinfo_list,
2294 sizeof (unsigned long) * ppc_apuinfo_num_alloc);
2297 ppc_apuinfo_list[ppc_apuinfo_num++] = APUID (apu, version);
2303 /* We need to keep a list of fixups. We can't simply generate them as
2304 we go, because that would require us to first create the frag, and
2305 that would screw up references to ``.''. */
2311 bfd_reloc_code_real_type reloc;
2314 #define MAX_INSN_FIXUPS (5)
2316 /* This routine is called for each instruction to be assembled. */
2319 md_assemble (char *str)
2322 const struct powerpc_opcode *opcode;
2324 const unsigned char *opindex_ptr;
2328 struct ppc_fixup fixups[MAX_INSN_FIXUPS];
2334 bfd_reloc_code_real_type reloc;
2337 /* Get the opcode. */
2338 for (s = str; *s != '\0' && ! ISSPACE (*s); s++)
2343 /* Look up the opcode in the hash table. */
2344 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, str);
2345 if (opcode == (const struct powerpc_opcode *) NULL)
2347 const struct powerpc_macro *macro;
2349 macro = (const struct powerpc_macro *) hash_find (ppc_macro_hash, str);
2350 if (macro == (const struct powerpc_macro *) NULL)
2351 as_bad (_("Unrecognized opcode: `%s'"), str);
2353 ppc_macro (s, macro);
2358 insn = opcode->opcode;
2361 while (ISSPACE (*str))
2364 /* PowerPC operands are just expressions. The only real issue is
2365 that a few operand types are optional. All cases which might use
2366 an optional operand separate the operands only with commas (in some
2367 cases parentheses are used, as in ``lwz 1,0(1)'' but such cases never
2368 have optional operands). Most instructions with optional operands
2369 have only one. Those that have more than one optional operand can
2370 take either all their operands or none. So, before we start seriously
2371 parsing the operands, we check to see if we have optional operands,
2372 and if we do, we count the number of commas to see which operands
2373 have been omitted. */
2375 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2377 const struct powerpc_operand *operand;
2379 operand = &powerpc_operands[*opindex_ptr];
2380 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0)
2382 unsigned int opcount;
2383 unsigned int num_operands_expected;
2385 /* There is an optional operand. Count the number of
2386 commas in the input line. */
2393 while ((s = strchr (s, ',')) != (char *) NULL)
2400 /* Compute the number of expected operands.
2401 Do not count fake operands. */
2402 for (num_operands_expected = 0, i = 0; opcode->operands[i]; i ++)
2403 if ((powerpc_operands [opcode->operands[i]].flags & PPC_OPERAND_FAKE) == 0)
2404 ++ num_operands_expected;
2406 /* If there are fewer operands in the line then are called
2407 for by the instruction, we want to skip the optional
2409 if (opcount < num_operands_expected)
2416 /* Gather the operands. */
2420 for (opindex_ptr = opcode->operands; *opindex_ptr != 0; opindex_ptr++)
2422 const struct powerpc_operand *operand;
2428 if (next_opindex == 0)
2429 operand = &powerpc_operands[*opindex_ptr];
2432 operand = &powerpc_operands[next_opindex];
2437 /* If this is a fake operand, then we do not expect anything
2439 if ((operand->flags & PPC_OPERAND_FAKE) != 0)
2441 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2442 if (errmsg != (const char *) NULL)
2443 as_bad ("%s", errmsg);
2447 /* If this is an optional operand, and we are skipping it, just
2449 if ((operand->flags & PPC_OPERAND_OPTIONAL) != 0
2452 if (operand->insert)
2454 insn = (*operand->insert) (insn, 0L, ppc_cpu, &errmsg);
2455 if (errmsg != (const char *) NULL)
2456 as_bad ("%s", errmsg);
2458 if ((operand->flags & PPC_OPERAND_NEXT) != 0)
2459 next_opindex = *opindex_ptr + 1;
2463 /* Gather the operand. */
2464 hold = input_line_pointer;
2465 input_line_pointer = str;
2468 if (*input_line_pointer == '[')
2470 /* We are expecting something like the second argument here:
2472 * lwz r4,[toc].GS.0.static_int(rtoc)
2473 * ^^^^^^^^^^^^^^^^^^^^^^^^^^^
2474 * The argument following the `]' must be a symbol name, and the
2475 * register must be the toc register: 'rtoc' or '2'
2477 * The effect is to 0 as the displacement field
2478 * in the instruction, and issue an IMAGE_REL_PPC_TOCREL16 (or
2479 * the appropriate variation) reloc against it based on the symbol.
2480 * The linker will build the toc, and insert the resolved toc offset.
2483 * o The size of the toc entry is currently assumed to be
2484 * 32 bits. This should not be assumed to be a hard coded
2486 * o In an effort to cope with a change from 32 to 64 bits,
2487 * there are also toc entries that are specified to be
2488 * either 32 or 64 bits:
2489 * lwz r4,[toc32].GS.0.static_int(rtoc)
2490 * lwz r4,[toc64].GS.0.static_int(rtoc)
2491 * These demand toc entries of the specified size, and the
2492 * instruction probably requires it.
2496 enum toc_size_qualifier toc_kind;
2497 bfd_reloc_code_real_type toc_reloc;
2499 /* Go parse off the [tocXX] part. */
2500 valid_toc = parse_toc_entry (&toc_kind);
2504 /* Note: message has already been issued.
2505 FIXME: what sort of recovery should we do?
2506 demand_rest_of_line (); return; ? */
2509 /* Now get the symbol following the ']'. */
2515 /* In this case, we may not have seen the symbol yet,
2516 since it is allowed to appear on a .extern or .globl
2517 or just be a label in the .data section. */
2518 toc_reloc = BFD_RELOC_PPC_TOC16;
2521 /* 1. The symbol must be defined and either in the toc
2522 section, or a global.
2523 2. The reloc generated must have the TOCDEFN flag set
2524 in upper bit mess of the reloc type.
2525 FIXME: It's a little confusing what the tocv
2526 qualifier can be used for. At the very least, I've
2527 seen three uses, only one of which I'm sure I can
2529 if (ex.X_op == O_symbol)
2531 gas_assert (ex.X_add_symbol != NULL);
2532 if (symbol_get_bfdsym (ex.X_add_symbol)->section
2535 as_bad (_("[tocv] symbol is not a toc symbol"));
2539 toc_reloc = BFD_RELOC_PPC_TOC16;
2542 /* FIXME: these next two specifically specify 32/64 bit
2543 toc entries. We don't support them today. Is this
2544 the right way to say that? */
2545 toc_reloc = BFD_RELOC_UNUSED;
2546 as_bad (_("Unimplemented toc32 expression modifier"));
2549 /* FIXME: see above. */
2550 toc_reloc = BFD_RELOC_UNUSED;
2551 as_bad (_("Unimplemented toc64 expression modifier"));
2555 _("Unexpected return value [%d] from parse_toc_entry!\n"),
2561 /* We need to generate a fixup for this expression. */
2562 if (fc >= MAX_INSN_FIXUPS)
2563 as_fatal (_("too many fixups"));
2565 fixups[fc].reloc = toc_reloc;
2566 fixups[fc].exp = ex;
2567 fixups[fc].opindex = *opindex_ptr;
2570 /* Ok. We've set up the fixup for the instruction. Now make it
2571 look like the constant 0 was found here. */
2573 ex.X_op = O_constant;
2574 ex.X_add_number = 0;
2575 ex.X_add_symbol = NULL;
2576 ex.X_op_symbol = NULL;
2582 if ((reg_names_p && (operand->flags & PPC_OPERAND_CR) != 0)
2583 || !register_name (&ex))
2585 char save_lex = lex_type['%'];
2587 if ((operand->flags & PPC_OPERAND_CR) != 0)
2590 lex_type['%'] |= LEX_BEGIN_NAME;
2594 lex_type['%'] = save_lex;
2598 str = input_line_pointer;
2599 input_line_pointer = hold;
2601 if (ex.X_op == O_illegal)
2602 as_bad (_("illegal operand"));
2603 else if (ex.X_op == O_absent)
2604 as_bad (_("missing operand"));
2605 else if (ex.X_op == O_register)
2607 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2608 ppc_cpu, (char *) NULL, 0);
2610 else if (ex.X_op == O_constant)
2613 /* Allow @HA, @L, @H on constants. */
2614 char *orig_str = str;
2616 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2623 case BFD_RELOC_LO16:
2624 /* X_unsigned is the default, so if the user has done
2625 something which cleared it, we always produce a
2627 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2628 ex.X_add_number &= 0xffff;
2630 ex.X_add_number = SEX16 (ex.X_add_number);
2633 case BFD_RELOC_HI16:
2634 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2635 ex.X_add_number = PPC_HI (ex.X_add_number);
2637 ex.X_add_number = SEX16 (PPC_HI (ex.X_add_number));
2640 case BFD_RELOC_HI16_S:
2641 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2642 ex.X_add_number = PPC_HA (ex.X_add_number);
2644 ex.X_add_number = SEX16 (PPC_HA (ex.X_add_number));
2647 case BFD_RELOC_PPC64_HIGHER:
2648 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2649 ex.X_add_number = PPC_HIGHER (ex.X_add_number);
2651 ex.X_add_number = SEX16 (PPC_HIGHER (ex.X_add_number));
2654 case BFD_RELOC_PPC64_HIGHER_S:
2655 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2656 ex.X_add_number = PPC_HIGHERA (ex.X_add_number);
2658 ex.X_add_number = SEX16 (PPC_HIGHERA (ex.X_add_number));
2661 case BFD_RELOC_PPC64_HIGHEST:
2662 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2663 ex.X_add_number = PPC_HIGHEST (ex.X_add_number);
2665 ex.X_add_number = SEX16 (PPC_HIGHEST (ex.X_add_number));
2668 case BFD_RELOC_PPC64_HIGHEST_S:
2669 if (ex.X_unsigned && ! (operand->flags & PPC_OPERAND_SIGNED))
2670 ex.X_add_number = PPC_HIGHESTA (ex.X_add_number);
2672 ex.X_add_number = SEX16 (PPC_HIGHESTA (ex.X_add_number));
2675 #endif /* OBJ_ELF */
2676 insn = ppc_insert_operand (insn, operand, ex.X_add_number,
2677 ppc_cpu, (char *) NULL, 0);
2682 if (ex.X_op == O_symbol && str[0] == '(')
2684 const char *sym_name = S_GET_NAME (ex.X_add_symbol);
2685 if (sym_name[0] == '.')
2688 if (strcasecmp (sym_name, "__tls_get_addr") == 0)
2690 expressionS tls_exp;
2692 hold = input_line_pointer;
2693 input_line_pointer = str + 1;
2694 expression (&tls_exp);
2695 if (tls_exp.X_op == O_symbol)
2697 reloc = BFD_RELOC_UNUSED;
2698 if (strncasecmp (input_line_pointer, "@tlsgd)", 7) == 0)
2700 reloc = BFD_RELOC_PPC_TLSGD;
2701 input_line_pointer += 7;
2703 else if (strncasecmp (input_line_pointer, "@tlsld)", 7) == 0)
2705 reloc = BFD_RELOC_PPC_TLSLD;
2706 input_line_pointer += 7;
2708 if (reloc != BFD_RELOC_UNUSED)
2711 str = input_line_pointer;
2713 if (fc >= MAX_INSN_FIXUPS)
2714 as_fatal (_("too many fixups"));
2715 fixups[fc].exp = tls_exp;
2716 fixups[fc].opindex = *opindex_ptr;
2717 fixups[fc].reloc = reloc;
2721 input_line_pointer = hold;
2725 if ((reloc = ppc_elf_suffix (&str, &ex)) != BFD_RELOC_UNUSED)
2727 /* Some TLS tweaks. */
2733 case BFD_RELOC_PPC_TLS:
2734 if (!_bfd_elf_ppc_at_tls_transform (opcode->opcode, 0))
2735 as_bad (_("@tls may not be used with \"%s\" operands"),
2737 else if (operand->shift != 11)
2738 as_bad (_("@tls may only be used in last operand"));
2740 insn = ppc_insert_operand (insn, operand,
2742 ppc_cpu, (char *) NULL, 0);
2745 /* We'll only use the 32 (or 64) bit form of these relocations
2746 in constants. Instructions get the 16 bit form. */
2747 case BFD_RELOC_PPC_DTPREL:
2748 reloc = BFD_RELOC_PPC_DTPREL16;
2750 case BFD_RELOC_PPC_TPREL:
2751 reloc = BFD_RELOC_PPC_TPREL16;
2755 /* For the absolute forms of branches, convert the PC
2756 relative form back into the absolute. */
2757 if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0)
2761 case BFD_RELOC_PPC_B26:
2762 reloc = BFD_RELOC_PPC_BA26;
2764 case BFD_RELOC_PPC_B16:
2765 reloc = BFD_RELOC_PPC_BA16;
2767 case BFD_RELOC_PPC_B16_BRTAKEN:
2768 reloc = BFD_RELOC_PPC_BA16_BRTAKEN;
2770 case BFD_RELOC_PPC_B16_BRNTAKEN:
2771 reloc = BFD_RELOC_PPC_BA16_BRNTAKEN;
2779 && (operand->flags & (PPC_OPERAND_DS | PPC_OPERAND_DQ)) != 0)
2784 reloc = BFD_RELOC_PPC64_ADDR16_DS;
2786 case BFD_RELOC_LO16:
2787 reloc = BFD_RELOC_PPC64_ADDR16_LO_DS;
2789 case BFD_RELOC_16_GOTOFF:
2790 reloc = BFD_RELOC_PPC64_GOT16_DS;
2792 case BFD_RELOC_LO16_GOTOFF:
2793 reloc = BFD_RELOC_PPC64_GOT16_LO_DS;
2795 case BFD_RELOC_LO16_PLTOFF:
2796 reloc = BFD_RELOC_PPC64_PLT16_LO_DS;
2798 case BFD_RELOC_16_BASEREL:
2799 reloc = BFD_RELOC_PPC64_SECTOFF_DS;
2801 case BFD_RELOC_LO16_BASEREL:
2802 reloc = BFD_RELOC_PPC64_SECTOFF_LO_DS;
2804 case BFD_RELOC_PPC_TOC16:
2805 reloc = BFD_RELOC_PPC64_TOC16_DS;
2807 case BFD_RELOC_PPC64_TOC16_LO:
2808 reloc = BFD_RELOC_PPC64_TOC16_LO_DS;
2810 case BFD_RELOC_PPC64_PLTGOT16:
2811 reloc = BFD_RELOC_PPC64_PLTGOT16_DS;
2813 case BFD_RELOC_PPC64_PLTGOT16_LO:
2814 reloc = BFD_RELOC_PPC64_PLTGOT16_LO_DS;
2816 case BFD_RELOC_PPC_DTPREL16:
2817 reloc = BFD_RELOC_PPC64_DTPREL16_DS;
2819 case BFD_RELOC_PPC_DTPREL16_LO:
2820 reloc = BFD_RELOC_PPC64_DTPREL16_LO_DS;
2822 case BFD_RELOC_PPC_TPREL16:
2823 reloc = BFD_RELOC_PPC64_TPREL16_DS;
2825 case BFD_RELOC_PPC_TPREL16_LO:
2826 reloc = BFD_RELOC_PPC64_TPREL16_LO_DS;
2828 case BFD_RELOC_PPC_GOT_DTPREL16:
2829 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
2830 case BFD_RELOC_PPC_GOT_TPREL16:
2831 case BFD_RELOC_PPC_GOT_TPREL16_LO:
2834 as_bad (_("unsupported relocation for DS offset field"));
2840 /* We need to generate a fixup for this expression. */
2841 if (fc >= MAX_INSN_FIXUPS)
2842 as_fatal (_("too many fixups"));
2843 fixups[fc].exp = ex;
2844 fixups[fc].opindex = *opindex_ptr;
2845 fixups[fc].reloc = reloc;
2851 /* We need to generate a fixup for this expression. */
2852 if (fc >= MAX_INSN_FIXUPS)
2853 as_fatal (_("too many fixups"));
2854 fixups[fc].exp = ex;
2855 fixups[fc].opindex = *opindex_ptr;
2856 fixups[fc].reloc = BFD_RELOC_UNUSED;
2859 #endif /* OBJ_ELF */
2865 /* If expecting more operands, then we want to see "),". */
2866 if (*str == endc && opindex_ptr[1] != 0)
2870 while (ISSPACE (*str));
2874 else if ((operand->flags & PPC_OPERAND_PARENS) != 0)
2882 /* The call to expression should have advanced str past any
2885 && (endc != ',' || *str != '\0'))
2887 as_bad (_("syntax error; found `%c' but expected `%c'"), *str, endc);
2895 while (ISSPACE (*str))
2899 as_bad (_("junk at end of line: `%s'"), str);
2902 /* Do we need/want a APUinfo section? */
2903 if ((ppc_cpu & PPC_OPCODE_E500MC) != 0)
2905 /* These are all version "1". */
2906 if (opcode->flags & PPC_OPCODE_SPE)
2907 ppc_apuinfo_section_add (PPC_APUINFO_SPE, 1);
2908 if (opcode->flags & PPC_OPCODE_ISEL)
2909 ppc_apuinfo_section_add (PPC_APUINFO_ISEL, 1);
2910 if (opcode->flags & PPC_OPCODE_EFS)
2911 ppc_apuinfo_section_add (PPC_APUINFO_EFS, 1);
2912 if (opcode->flags & PPC_OPCODE_BRLOCK)
2913 ppc_apuinfo_section_add (PPC_APUINFO_BRLOCK, 1);
2914 if (opcode->flags & PPC_OPCODE_PMR)
2915 ppc_apuinfo_section_add (PPC_APUINFO_PMR, 1);
2916 if (opcode->flags & PPC_OPCODE_CACHELCK)
2917 ppc_apuinfo_section_add (PPC_APUINFO_CACHELCK, 1);
2918 if (opcode->flags & PPC_OPCODE_RFMCI)
2919 ppc_apuinfo_section_add (PPC_APUINFO_RFMCI, 1);
2923 /* Write out the instruction. */
2925 addr_mod = frag_now_fix () & 3;
2926 if (frag_now->has_code && frag_now->insn_addr != addr_mod)
2927 as_bad (_("instruction address is not a multiple of 4"));
2928 frag_now->insn_addr = addr_mod;
2929 frag_now->has_code = 1;
2930 md_number_to_chars (f, insn, 4);
2933 dwarf2_emit_insn (4);
2936 /* Create any fixups. At this point we do not use a
2937 bfd_reloc_code_real_type, but instead just use the
2938 BFD_RELOC_UNUSED plus the operand index. This lets us easily
2939 handle fixups for any operand type, although that is admittedly
2940 not a very exciting feature. We pick a BFD reloc type in
2942 for (i = 0; i < fc; i++)
2944 if (fixups[i].reloc != BFD_RELOC_UNUSED)
2946 reloc_howto_type *reloc_howto;
2951 reloc_howto = bfd_reloc_type_lookup (stdoutput, fixups[i].reloc);
2955 size = bfd_get_reloc_size (reloc_howto);
2956 offset = target_big_endian ? (4 - size) : 0;
2958 if (size < 1 || size > 4)
2961 fixP = fix_new_exp (frag_now,
2962 f - frag_now->fr_literal + offset,
2965 reloc_howto->pc_relative,
2968 /* Turn off complaints that the addend is too large for things like
2970 switch (fixups[i].reloc)
2972 case BFD_RELOC_16_GOTOFF:
2973 case BFD_RELOC_PPC_TOC16:
2974 case BFD_RELOC_LO16:
2975 case BFD_RELOC_HI16:
2976 case BFD_RELOC_HI16_S:
2978 case BFD_RELOC_PPC64_HIGHER:
2979 case BFD_RELOC_PPC64_HIGHER_S:
2980 case BFD_RELOC_PPC64_HIGHEST:
2981 case BFD_RELOC_PPC64_HIGHEST_S:
2983 fixP->fx_no_overflow = 1;
2991 const struct powerpc_operand *operand;
2993 operand = &powerpc_operands[fixups[i].opindex];
2994 fix_new_exp (frag_now,
2995 f - frag_now->fr_literal,
2998 (operand->flags & PPC_OPERAND_RELATIVE) != 0,
2999 ((bfd_reloc_code_real_type)
3000 (fixups[i].opindex + (int) BFD_RELOC_UNUSED)));
3005 /* Handle a macro. Gather all the operands, transform them as
3006 described by the macro, and call md_assemble recursively. All the
3007 operands are separated by commas; we don't accept parentheses
3008 around operands here. */
3011 ppc_macro (char *str, const struct powerpc_macro *macro)
3022 /* Gather the users operands into the operands array. */
3027 if (count >= sizeof operands / sizeof operands[0])
3029 operands[count++] = s;
3030 s = strchr (s, ',');
3031 if (s == (char *) NULL)
3036 if (count != macro->operands)
3038 as_bad (_("wrong number of operands"));
3042 /* Work out how large the string must be (the size is unbounded
3043 because it includes user input). */
3045 format = macro->format;
3046 while (*format != '\0')
3055 arg = strtol (format + 1, &send, 10);
3056 know (send != format && arg < count);
3057 len += strlen (operands[arg]);
3062 /* Put the string together. */
3063 complete = s = (char *) alloca (len + 1);
3064 format = macro->format;
3065 while (*format != '\0')
3071 arg = strtol (format + 1, &send, 10);
3072 strcpy (s, operands[arg]);
3079 /* Assemble the constructed instruction. */
3080 md_assemble (complete);
3084 /* For ELF, add support for SHF_EXCLUDE and SHT_ORDERED. */
3087 ppc_section_letter (int letter, char **ptr_msg)
3092 *ptr_msg = _("Bad .section directive: want a,e,w,x,M,S,G,T in string");
3097 ppc_section_word (char *str, size_t len)
3099 if (len == 7 && strncmp (str, "exclude", 7) == 0)
3106 ppc_section_type (char *str, size_t len)
3108 if (len == 7 && strncmp (str, "ordered", 7) == 0)
3115 ppc_section_flags (flagword flags, bfd_vma attr, int type)
3117 if (type == SHT_ORDERED)
3118 flags |= SEC_ALLOC | SEC_LOAD | SEC_SORT_ENTRIES;
3120 if (attr & SHF_EXCLUDE)
3121 flags |= SEC_EXCLUDE;
3125 #endif /* OBJ_ELF */
3128 /* Pseudo-op handling. */
3130 /* The .byte pseudo-op. This is similar to the normal .byte
3131 pseudo-op, but it can also take a single ASCII string. */
3134 ppc_byte (int ignore ATTRIBUTE_UNUSED)
3136 if (*input_line_pointer != '\"')
3142 /* Gather characters. A real double quote is doubled. Unusual
3143 characters are not permitted. */
3144 ++input_line_pointer;
3149 c = *input_line_pointer++;
3153 if (*input_line_pointer != '\"')
3155 ++input_line_pointer;
3158 FRAG_APPEND_1_CHAR (c);
3161 demand_empty_rest_of_line ();
3166 /* XCOFF specific pseudo-op handling. */
3168 /* This is set if we are creating a .stabx symbol, since we don't want
3169 to handle symbol suffixes for such symbols. */
3170 static bfd_boolean ppc_stab_symbol;
3172 /* The .comm and .lcomm pseudo-ops for XCOFF. XCOFF puts common
3173 symbols in the .bss segment as though they were local common
3174 symbols, and uses a different smclas. The native Aix 4.3.3 assembler
3175 aligns .comm and .lcomm to 4 bytes. */
3178 ppc_comm (int lcomm)
3180 asection *current_seg = now_seg;
3181 subsegT current_subseg = now_subseg;
3187 symbolS *lcomm_sym = NULL;
3191 name = input_line_pointer;
3192 endc = get_symbol_end ();
3193 end_name = input_line_pointer;
3196 if (*input_line_pointer != ',')
3198 as_bad (_("missing size"));
3199 ignore_rest_of_line ();
3202 ++input_line_pointer;
3204 size = get_absolute_expression ();
3207 as_bad (_("negative size"));
3208 ignore_rest_of_line ();
3214 /* The third argument to .comm is the alignment. */
3215 if (*input_line_pointer != ',')
3219 ++input_line_pointer;
3220 align = get_absolute_expression ();
3223 as_warn (_("ignoring bad alignment"));
3238 /* The third argument to .lcomm appears to be the real local
3239 common symbol to create. References to the symbol named in
3240 the first argument are turned into references to the third
3242 if (*input_line_pointer != ',')
3244 as_bad (_("missing real symbol name"));
3245 ignore_rest_of_line ();
3248 ++input_line_pointer;
3250 lcomm_name = input_line_pointer;
3251 lcomm_endc = get_symbol_end ();
3253 lcomm_sym = symbol_find_or_make (lcomm_name);
3255 *input_line_pointer = lcomm_endc;
3259 sym = symbol_find_or_make (name);
3262 if (S_IS_DEFINED (sym)
3263 || S_GET_VALUE (sym) != 0)
3265 as_bad (_("attempt to redefine symbol"));
3266 ignore_rest_of_line ();
3270 record_alignment (bss_section, align);
3273 || ! S_IS_DEFINED (lcomm_sym))
3282 S_SET_EXTERNAL (sym);
3286 symbol_get_tc (lcomm_sym)->output = 1;
3287 def_sym = lcomm_sym;
3291 subseg_set (bss_section, 1);
3292 frag_align (align, 0, 0);
3294 symbol_set_frag (def_sym, frag_now);
3295 pfrag = frag_var (rs_org, 1, 1, (relax_substateT) 0, def_sym,
3296 def_size, (char *) NULL);
3298 S_SET_SEGMENT (def_sym, bss_section);
3299 symbol_get_tc (def_sym)->align = align;
3303 /* Align the size of lcomm_sym. */
3304 symbol_get_frag (lcomm_sym)->fr_offset =
3305 ((symbol_get_frag (lcomm_sym)->fr_offset + (1 << align) - 1)
3306 &~ ((1 << align) - 1));
3307 if (align > symbol_get_tc (lcomm_sym)->align)
3308 symbol_get_tc (lcomm_sym)->align = align;
3313 /* Make sym an offset from lcomm_sym. */
3314 S_SET_SEGMENT (sym, bss_section);
3315 symbol_set_frag (sym, symbol_get_frag (lcomm_sym));
3316 S_SET_VALUE (sym, symbol_get_frag (lcomm_sym)->fr_offset);
3317 symbol_get_frag (lcomm_sym)->fr_offset += size;
3320 subseg_set (current_seg, current_subseg);
3322 demand_empty_rest_of_line ();
3325 /* The .csect pseudo-op. This switches us into a different
3326 subsegment. The first argument is a symbol whose value is the
3327 start of the .csect. In COFF, csect symbols get special aux
3328 entries defined by the x_csect field of union internal_auxent. The
3329 optional second argument is the alignment (the default is 2). */
3332 ppc_csect (int ignore ATTRIBUTE_UNUSED)
3339 name = input_line_pointer;
3340 endc = get_symbol_end ();
3342 sym = symbol_find_or_make (name);
3344 *input_line_pointer = endc;
3346 if (S_GET_NAME (sym)[0] == '\0')
3348 /* An unnamed csect is assumed to be [PR]. */
3349 symbol_get_tc (sym)->symbol_class = XMC_PR;
3353 if (*input_line_pointer == ',')
3355 ++input_line_pointer;
3356 align = get_absolute_expression ();
3359 ppc_change_csect (sym, align);
3361 demand_empty_rest_of_line ();
3364 /* Change to a different csect. */
3367 ppc_change_csect (symbolS *sym, offsetT align)
3369 if (S_IS_DEFINED (sym))
3370 subseg_set (S_GET_SEGMENT (sym), symbol_get_tc (sym)->subseg);
3380 /* This is a new csect. We need to look at the symbol class to
3381 figure out whether it should go in the text section or the
3385 switch (symbol_get_tc (sym)->symbol_class)
3395 S_SET_SEGMENT (sym, text_section);
3396 symbol_get_tc (sym)->subseg = ppc_text_subsegment;
3397 ++ppc_text_subsegment;
3398 list_ptr = &ppc_text_csects;
3408 if (ppc_toc_csect != NULL
3409 && (symbol_get_tc (ppc_toc_csect)->subseg + 1
3410 == ppc_data_subsegment))
3412 S_SET_SEGMENT (sym, data_section);
3413 symbol_get_tc (sym)->subseg = ppc_data_subsegment;
3414 ++ppc_data_subsegment;
3415 list_ptr = &ppc_data_csects;
3421 /* We set the obstack chunk size to a small value before
3422 changing subsegments, so that we don't use a lot of memory
3423 space for what may be a small section. */
3424 hold_chunksize = chunksize;
3427 sec = subseg_new (segment_name (S_GET_SEGMENT (sym)),
3428 symbol_get_tc (sym)->subseg);
3430 chunksize = hold_chunksize;
3433 ppc_after_toc_frag = frag_now;
3435 record_alignment (sec, align);
3437 frag_align_code (align, 0);
3439 frag_align (align, 0, 0);
3441 symbol_set_frag (sym, frag_now);
3442 S_SET_VALUE (sym, (valueT) frag_now_fix ());
3444 symbol_get_tc (sym)->align = align;
3445 symbol_get_tc (sym)->output = 1;
3446 symbol_get_tc (sym)->within = sym;
3448 for (list = *list_ptr;
3449 symbol_get_tc (list)->next != (symbolS *) NULL;
3450 list = symbol_get_tc (list)->next)
3452 symbol_get_tc (list)->next = sym;
3454 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3455 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
3459 ppc_current_csect = sym;
3462 /* This function handles the .text and .data pseudo-ops. These
3463 pseudo-ops aren't really used by XCOFF; we implement them for the
3464 convenience of people who aren't used to XCOFF. */
3467 ppc_section (int type)
3474 else if (type == 'd')
3479 sym = symbol_find_or_make (name);
3481 ppc_change_csect (sym, 2);
3483 demand_empty_rest_of_line ();
3486 /* This function handles the .section pseudo-op. This is mostly to
3487 give an error, since XCOFF only supports .text, .data and .bss, but
3488 we do permit the user to name the text or data section. */
3491 ppc_named_section (int ignore ATTRIBUTE_UNUSED)
3494 const char *real_name;
3498 user_name = input_line_pointer;
3499 c = get_symbol_end ();
3501 if (strcmp (user_name, ".text") == 0)
3502 real_name = ".text[PR]";
3503 else if (strcmp (user_name, ".data") == 0)
3504 real_name = ".data[RW]";
3507 as_bad (_("The XCOFF file format does not support arbitrary sections"));
3508 *input_line_pointer = c;
3509 ignore_rest_of_line ();
3513 *input_line_pointer = c;
3515 sym = symbol_find_or_make (real_name);
3517 ppc_change_csect (sym, 2);
3519 demand_empty_rest_of_line ();
3522 /* The .extern pseudo-op. We create an undefined symbol. */
3525 ppc_extern (int ignore ATTRIBUTE_UNUSED)
3530 name = input_line_pointer;
3531 endc = get_symbol_end ();
3533 (void) symbol_find_or_make (name);
3535 *input_line_pointer = endc;
3537 demand_empty_rest_of_line ();
3540 /* The .lglobl pseudo-op. Keep the symbol in the symbol table. */
3543 ppc_lglobl (int ignore ATTRIBUTE_UNUSED)
3549 name = input_line_pointer;
3550 endc = get_symbol_end ();
3552 sym = symbol_find_or_make (name);
3554 *input_line_pointer = endc;
3556 symbol_get_tc (sym)->output = 1;
3558 demand_empty_rest_of_line ();
3561 /* The .rename pseudo-op. The RS/6000 assembler can rename symbols,
3562 although I don't know why it bothers. */
3565 ppc_rename (int ignore ATTRIBUTE_UNUSED)
3572 name = input_line_pointer;
3573 endc = get_symbol_end ();
3575 sym = symbol_find_or_make (name);
3577 *input_line_pointer = endc;
3579 if (*input_line_pointer != ',')
3581 as_bad (_("missing rename string"));
3582 ignore_rest_of_line ();
3585 ++input_line_pointer;
3587 symbol_get_tc (sym)->real_name = demand_copy_C_string (&len);
3589 demand_empty_rest_of_line ();
3592 /* The .stabx pseudo-op. This is similar to a normal .stabs
3593 pseudo-op, but slightly different. A sample is
3594 .stabx "main:F-1",.main,142,0
3595 The first argument is the symbol name to create. The second is the
3596 value, and the third is the storage class. The fourth seems to be
3597 always zero, and I am assuming it is the type. */
3600 ppc_stabx (int ignore ATTRIBUTE_UNUSED)
3607 name = demand_copy_C_string (&len);
3609 if (*input_line_pointer != ',')
3611 as_bad (_("missing value"));
3614 ++input_line_pointer;
3616 ppc_stab_symbol = TRUE;
3617 sym = symbol_make (name);
3618 ppc_stab_symbol = FALSE;
3620 symbol_get_tc (sym)->real_name = name;
3622 (void) expression (&exp);
3629 as_bad (_("illegal .stabx expression; zero assumed"));
3630 exp.X_add_number = 0;
3633 S_SET_VALUE (sym, (valueT) exp.X_add_number);
3634 symbol_set_frag (sym, &zero_address_frag);
3638 if (S_GET_SEGMENT (exp.X_add_symbol) == undefined_section)
3639 symbol_set_value_expression (sym, &exp);
3643 exp.X_add_number + S_GET_VALUE (exp.X_add_symbol));
3644 symbol_set_frag (sym, symbol_get_frag (exp.X_add_symbol));
3649 /* The value is some complex expression. This will probably
3650 fail at some later point, but this is probably the right
3651 thing to do here. */
3652 symbol_set_value_expression (sym, &exp);
3656 S_SET_SEGMENT (sym, ppc_coff_debug_section);
3657 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3659 if (*input_line_pointer != ',')
3661 as_bad (_("missing class"));
3664 ++input_line_pointer;
3666 S_SET_STORAGE_CLASS (sym, get_absolute_expression ());
3668 if (*input_line_pointer != ',')
3670 as_bad (_("missing type"));
3673 ++input_line_pointer;
3675 S_SET_DATA_TYPE (sym, get_absolute_expression ());
3677 symbol_get_tc (sym)->output = 1;
3679 if (S_GET_STORAGE_CLASS (sym) == C_STSYM) {
3681 symbol_get_tc (sym)->within = ppc_current_block;
3686 .stabx "z",arrays_,133,0
3689 .comm arrays_,13768,3
3691 resolve_symbol_value will copy the exp's "within" into sym's when the
3692 offset is 0. Since this seems to be corner case problem,
3693 only do the correction for storage class C_STSYM. A better solution
3694 would be to have the tc field updated in ppc_symbol_new_hook. */
3696 if (exp.X_op == O_symbol)
3698 symbol_get_tc (exp.X_add_symbol)->within = ppc_current_block;
3702 if (exp.X_op != O_symbol
3703 || ! S_IS_EXTERNAL (exp.X_add_symbol)
3704 || S_GET_SEGMENT (exp.X_add_symbol) != bss_section)
3705 ppc_frob_label (sym);
3708 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3709 symbol_append (sym, exp.X_add_symbol, &symbol_rootP, &symbol_lastP);
3710 if (symbol_get_tc (ppc_current_csect)->within == exp.X_add_symbol)
3711 symbol_get_tc (ppc_current_csect)->within = sym;
3714 demand_empty_rest_of_line ();
3717 /* The .function pseudo-op. This takes several arguments. The first
3718 argument seems to be the external name of the symbol. The second
3719 argument seems to be the label for the start of the function. gcc
3720 uses the same name for both. I have no idea what the third and
3721 fourth arguments are meant to be. The optional fifth argument is
3722 an expression for the size of the function. In COFF this symbol
3723 gets an aux entry like that used for a csect. */
3726 ppc_function (int ignore ATTRIBUTE_UNUSED)
3734 name = input_line_pointer;
3735 endc = get_symbol_end ();
3737 /* Ignore any [PR] suffix. */
3738 name = ppc_canonicalize_symbol_name (name);
3739 s = strchr (name, '[');
3740 if (s != (char *) NULL
3741 && strcmp (s + 1, "PR]") == 0)
3744 ext_sym = symbol_find_or_make (name);
3746 *input_line_pointer = endc;
3748 if (*input_line_pointer != ',')
3750 as_bad (_("missing symbol name"));
3751 ignore_rest_of_line ();
3754 ++input_line_pointer;
3756 name = input_line_pointer;
3757 endc = get_symbol_end ();
3759 lab_sym = symbol_find_or_make (name);
3761 *input_line_pointer = endc;
3763 if (ext_sym != lab_sym)
3767 exp.X_op = O_symbol;
3768 exp.X_add_symbol = lab_sym;
3769 exp.X_op_symbol = NULL;
3770 exp.X_add_number = 0;
3772 symbol_set_value_expression (ext_sym, &exp);
3775 if (symbol_get_tc (ext_sym)->symbol_class == -1)
3776 symbol_get_tc (ext_sym)->symbol_class = XMC_PR;
3777 symbol_get_tc (ext_sym)->output = 1;
3779 if (*input_line_pointer == ',')
3783 /* Ignore the third argument. */
3784 ++input_line_pointer;
3786 if (*input_line_pointer == ',')
3788 /* Ignore the fourth argument. */
3789 ++input_line_pointer;
3791 if (*input_line_pointer == ',')
3793 /* The fifth argument is the function size. */
3794 ++input_line_pointer;
3795 symbol_get_tc (ext_sym)->size = symbol_new ("L0\001",
3798 &zero_address_frag);
3799 pseudo_set (symbol_get_tc (ext_sym)->size);
3804 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
3805 SF_SET_FUNCTION (ext_sym);
3806 SF_SET_PROCESS (ext_sym);
3807 coff_add_linesym (ext_sym);
3809 demand_empty_rest_of_line ();
3812 /* The .bf pseudo-op. This is just like a COFF C_FCN symbol named
3813 ".bf". If the pseudo op .bi was seen before .bf, patch the .bi sym
3814 with the correct line number */
3816 static symbolS *saved_bi_sym = 0;
3819 ppc_bf (int ignore ATTRIBUTE_UNUSED)
3823 sym = symbol_make (".bf");
3824 S_SET_SEGMENT (sym, text_section);
3825 symbol_set_frag (sym, frag_now);
3826 S_SET_VALUE (sym, frag_now_fix ());
3827 S_SET_STORAGE_CLASS (sym, C_FCN);
3829 coff_line_base = get_absolute_expression ();
3831 S_SET_NUMBER_AUXILIARY (sym, 1);
3832 SA_SET_SYM_LNNO (sym, coff_line_base);
3834 /* Line number for bi. */
3837 S_SET_VALUE (saved_bi_sym, coff_n_line_nos);
3842 symbol_get_tc (sym)->output = 1;
3844 ppc_frob_label (sym);
3846 demand_empty_rest_of_line ();
3849 /* The .ef pseudo-op. This is just like a COFF C_FCN symbol named
3850 ".ef", except that the line number is absolute, not relative to the
3851 most recent ".bf" symbol. */
3854 ppc_ef (int ignore ATTRIBUTE_UNUSED)
3858 sym = symbol_make (".ef");
3859 S_SET_SEGMENT (sym, text_section);
3860 symbol_set_frag (sym, frag_now);
3861 S_SET_VALUE (sym, frag_now_fix ());
3862 S_SET_STORAGE_CLASS (sym, C_FCN);
3863 S_SET_NUMBER_AUXILIARY (sym, 1);
3864 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
3865 symbol_get_tc (sym)->output = 1;
3867 ppc_frob_label (sym);
3869 demand_empty_rest_of_line ();
3872 /* The .bi and .ei pseudo-ops. These take a string argument and
3873 generates a C_BINCL or C_EINCL symbol, which goes at the start of
3874 the symbol list. The value of .bi will be know when the next .bf
3880 static symbolS *last_biei;
3887 name = demand_copy_C_string (&len);
3889 /* The value of these symbols is actually file offset. Here we set
3890 the value to the index into the line number entries. In
3891 ppc_frob_symbols we set the fix_line field, which will cause BFD
3892 to do the right thing. */
3894 sym = symbol_make (name);
3895 /* obj-coff.c currently only handles line numbers correctly in the
3897 S_SET_SEGMENT (sym, text_section);
3898 S_SET_VALUE (sym, coff_n_line_nos);
3899 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3901 S_SET_STORAGE_CLASS (sym, ei ? C_EINCL : C_BINCL);
3902 symbol_get_tc (sym)->output = 1;
3910 for (look = last_biei ? last_biei : symbol_rootP;
3911 (look != (symbolS *) NULL
3912 && (S_GET_STORAGE_CLASS (look) == C_FILE
3913 || S_GET_STORAGE_CLASS (look) == C_BINCL
3914 || S_GET_STORAGE_CLASS (look) == C_EINCL));
3915 look = symbol_next (look))
3917 if (look != (symbolS *) NULL)
3919 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
3920 symbol_insert (sym, look, &symbol_rootP, &symbol_lastP);
3924 demand_empty_rest_of_line ();
3927 /* The .bs pseudo-op. This generates a C_BSTAT symbol named ".bs".
3928 There is one argument, which is a csect symbol. The value of the
3929 .bs symbol is the index of this csect symbol. */
3932 ppc_bs (int ignore ATTRIBUTE_UNUSED)
3939 if (ppc_current_block != NULL)
3940 as_bad (_("nested .bs blocks"));
3942 name = input_line_pointer;
3943 endc = get_symbol_end ();
3945 csect = symbol_find_or_make (name);
3947 *input_line_pointer = endc;
3949 sym = symbol_make (".bs");
3950 S_SET_SEGMENT (sym, now_seg);
3951 S_SET_STORAGE_CLASS (sym, C_BSTAT);
3952 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3953 symbol_get_tc (sym)->output = 1;
3955 symbol_get_tc (sym)->within = csect;
3957 ppc_frob_label (sym);
3959 ppc_current_block = sym;
3961 demand_empty_rest_of_line ();
3964 /* The .es pseudo-op. Generate a C_ESTART symbol named .es. */
3967 ppc_es (int ignore ATTRIBUTE_UNUSED)
3971 if (ppc_current_block == NULL)
3972 as_bad (_(".es without preceding .bs"));
3974 sym = symbol_make (".es");
3975 S_SET_SEGMENT (sym, now_seg);
3976 S_SET_STORAGE_CLASS (sym, C_ESTAT);
3977 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
3978 symbol_get_tc (sym)->output = 1;
3980 ppc_frob_label (sym);
3982 ppc_current_block = NULL;
3984 demand_empty_rest_of_line ();
3987 /* The .bb pseudo-op. Generate a C_BLOCK symbol named .bb, with a
3991 ppc_bb (int ignore ATTRIBUTE_UNUSED)
3995 sym = symbol_make (".bb");
3996 S_SET_SEGMENT (sym, text_section);
3997 symbol_set_frag (sym, frag_now);
3998 S_SET_VALUE (sym, frag_now_fix ());
3999 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4001 S_SET_NUMBER_AUXILIARY (sym, 1);
4002 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4004 symbol_get_tc (sym)->output = 1;
4006 SF_SET_PROCESS (sym);
4008 ppc_frob_label (sym);
4010 demand_empty_rest_of_line ();
4013 /* The .eb pseudo-op. Generate a C_BLOCK symbol named .eb, with a
4017 ppc_eb (int ignore ATTRIBUTE_UNUSED)
4021 sym = symbol_make (".eb");
4022 S_SET_SEGMENT (sym, text_section);
4023 symbol_set_frag (sym, frag_now);
4024 S_SET_VALUE (sym, frag_now_fix ());
4025 S_SET_STORAGE_CLASS (sym, C_BLOCK);
4026 S_SET_NUMBER_AUXILIARY (sym, 1);
4027 SA_SET_SYM_LNNO (sym, get_absolute_expression ());
4028 symbol_get_tc (sym)->output = 1;
4030 SF_SET_PROCESS (sym);
4032 ppc_frob_label (sym);
4034 demand_empty_rest_of_line ();
4037 /* The .bc pseudo-op. This just creates a C_BCOMM symbol with a
4041 ppc_bc (int ignore ATTRIBUTE_UNUSED)
4047 name = demand_copy_C_string (&len);
4048 sym = symbol_make (name);
4049 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4050 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4051 S_SET_STORAGE_CLASS (sym, C_BCOMM);
4052 S_SET_VALUE (sym, 0);
4053 symbol_get_tc (sym)->output = 1;
4055 ppc_frob_label (sym);
4057 demand_empty_rest_of_line ();
4060 /* The .ec pseudo-op. This just creates a C_ECOMM symbol. */
4063 ppc_ec (int ignore ATTRIBUTE_UNUSED)
4067 sym = symbol_make (".ec");
4068 S_SET_SEGMENT (sym, ppc_coff_debug_section);
4069 symbol_get_bfdsym (sym)->flags |= BSF_DEBUGGING;
4070 S_SET_STORAGE_CLASS (sym, C_ECOMM);
4071 S_SET_VALUE (sym, 0);
4072 symbol_get_tc (sym)->output = 1;
4074 ppc_frob_label (sym);
4076 demand_empty_rest_of_line ();
4079 /* The .toc pseudo-op. Switch to the .toc subsegment. */
4082 ppc_toc (int ignore ATTRIBUTE_UNUSED)
4084 if (ppc_toc_csect != (symbolS *) NULL)
4085 subseg_set (data_section, symbol_get_tc (ppc_toc_csect)->subseg);
4092 subseg = ppc_data_subsegment;
4093 ++ppc_data_subsegment;
4095 subseg_new (segment_name (data_section), subseg);
4096 ppc_toc_frag = frag_now;
4098 sym = symbol_find_or_make ("TOC[TC0]");
4099 symbol_set_frag (sym, frag_now);
4100 S_SET_SEGMENT (sym, data_section);
4101 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4102 symbol_get_tc (sym)->subseg = subseg;
4103 symbol_get_tc (sym)->output = 1;
4104 symbol_get_tc (sym)->within = sym;
4106 ppc_toc_csect = sym;
4108 for (list = ppc_data_csects;
4109 symbol_get_tc (list)->next != (symbolS *) NULL;
4110 list = symbol_get_tc (list)->next)
4112 symbol_get_tc (list)->next = sym;
4114 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
4115 symbol_append (sym, symbol_get_tc (list)->within, &symbol_rootP,
4119 ppc_current_csect = ppc_toc_csect;
4121 demand_empty_rest_of_line ();
4124 /* The AIX assembler automatically aligns the operands of a .long or
4125 .short pseudo-op, and we want to be compatible. */
4128 ppc_xcoff_cons (int log_size)
4130 frag_align (log_size, 0, 0);
4131 record_alignment (now_seg, log_size);
4132 cons (1 << log_size);
4136 ppc_vbyte (int dummy ATTRIBUTE_UNUSED)
4141 (void) expression (&exp);
4143 if (exp.X_op != O_constant)
4145 as_bad (_("non-constant byte count"));
4149 byte_count = exp.X_add_number;
4151 if (*input_line_pointer != ',')
4153 as_bad (_("missing value"));
4157 ++input_line_pointer;
4161 #endif /* OBJ_XCOFF */
4162 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
4164 /* The .tc pseudo-op. This is used when generating either XCOFF or
4165 ELF. This takes two or more arguments.
4167 When generating XCOFF output, the first argument is the name to
4168 give to this location in the toc; this will be a symbol with class
4169 TC. The rest of the arguments are N-byte values to actually put at
4170 this location in the TOC; often there is just one more argument, a
4171 relocatable symbol reference. The size of the value to store
4172 depends on target word size. A 32-bit target uses 4-byte values, a
4173 64-bit target uses 8-byte values.
4175 When not generating XCOFF output, the arguments are the same, but
4176 the first argument is simply ignored. */
4179 ppc_tc (int ignore ATTRIBUTE_UNUSED)
4183 /* Define the TOC symbol name. */
4189 if (ppc_toc_csect == (symbolS *) NULL
4190 || ppc_toc_csect != ppc_current_csect)
4192 as_bad (_(".tc not in .toc section"));
4193 ignore_rest_of_line ();
4197 name = input_line_pointer;
4198 endc = get_symbol_end ();
4200 sym = symbol_find_or_make (name);
4202 *input_line_pointer = endc;
4204 if (S_IS_DEFINED (sym))
4208 label = symbol_get_tc (ppc_current_csect)->within;
4209 if (symbol_get_tc (label)->symbol_class != XMC_TC0)
4211 as_bad (_(".tc with no label"));
4212 ignore_rest_of_line ();
4216 S_SET_SEGMENT (label, S_GET_SEGMENT (sym));
4217 symbol_set_frag (label, symbol_get_frag (sym));
4218 S_SET_VALUE (label, S_GET_VALUE (sym));
4220 while (! is_end_of_line[(unsigned char) *input_line_pointer])
4221 ++input_line_pointer;
4226 S_SET_SEGMENT (sym, now_seg);
4227 symbol_set_frag (sym, frag_now);
4228 S_SET_VALUE (sym, (valueT) frag_now_fix ());
4229 symbol_get_tc (sym)->symbol_class = XMC_TC;
4230 symbol_get_tc (sym)->output = 1;
4232 ppc_frob_label (sym);
4235 #endif /* OBJ_XCOFF */
4239 /* Skip the TOC symbol name. */
4240 while (is_part_of_name (*input_line_pointer)
4241 || *input_line_pointer == ' '
4242 || *input_line_pointer == '['
4243 || *input_line_pointer == ']'
4244 || *input_line_pointer == '{'
4245 || *input_line_pointer == '}')
4246 ++input_line_pointer;
4248 /* Align to a four/eight byte boundary. */
4249 align = ppc_obj64 ? 3 : 2;
4250 frag_align (align, 0, 0);
4251 record_alignment (now_seg, align);
4252 #endif /* OBJ_ELF */
4254 if (*input_line_pointer != ',')
4255 demand_empty_rest_of_line ();
4258 ++input_line_pointer;
4259 cons (ppc_obj64 ? 8 : 4);
4263 /* Pseudo-op .machine. */
4266 ppc_machine (int ignore ATTRIBUTE_UNUSED)
4269 #define MAX_HISTORY 100
4270 static ppc_cpu_t *cpu_history;
4271 static int curr_hist;
4275 if (*input_line_pointer == '"')
4278 cpu_string = demand_copy_C_string (&len);
4283 cpu_string = input_line_pointer;
4284 c = get_symbol_end ();
4285 cpu_string = xstrdup (cpu_string);
4286 *input_line_pointer = c;
4289 if (cpu_string != NULL)
4291 ppc_cpu_t old_cpu = ppc_cpu;
4295 for (p = cpu_string; *p != 0; p++)
4298 if (strcmp (cpu_string, "push") == 0)
4300 if (cpu_history == NULL)
4301 cpu_history = xmalloc (MAX_HISTORY * sizeof (*cpu_history));
4303 if (curr_hist >= MAX_HISTORY)
4304 as_bad (_(".machine stack overflow"));
4306 cpu_history[curr_hist++] = ppc_cpu;
4308 else if (strcmp (cpu_string, "pop") == 0)
4311 as_bad (_(".machine stack underflow"));
4313 ppc_cpu = cpu_history[--curr_hist];
4315 else if ((new_cpu = ppc_parse_cpu (ppc_cpu, cpu_string)) != 0)
4318 as_bad (_("invalid machine `%s'"), cpu_string);
4320 if (ppc_cpu != old_cpu)
4321 ppc_setup_opcodes ();
4324 demand_empty_rest_of_line ();
4327 /* See whether a symbol is in the TOC section. */
4330 ppc_is_toc_sym (symbolS *sym)
4333 return symbol_get_tc (sym)->symbol_class == XMC_TC;
4336 const char *sname = segment_name (S_GET_SEGMENT (sym));
4338 return strcmp (sname, ".toc") == 0;
4340 return strcmp (sname, ".got") == 0;
4343 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
4347 /* Pseudo-ops specific to the Windows NT PowerPC PE (coff) format. */
4349 /* Set the current section. */
4351 ppc_set_current_section (segT new)
4353 ppc_previous_section = ppc_current_section;
4354 ppc_current_section = new;
4357 /* pseudo-op: .previous
4358 behaviour: toggles the current section with the previous section.
4360 warnings: "No previous section" */
4363 ppc_previous (int ignore ATTRIBUTE_UNUSED)
4367 if (ppc_previous_section == NULL)
4369 as_warn (_("No previous section to return to. Directive ignored."));
4373 subseg_set (ppc_previous_section, 0);
4375 ppc_set_current_section (ppc_previous_section);
4378 /* pseudo-op: .pdata
4379 behaviour: predefined read only data section
4383 initial: .section .pdata "adr3"
4384 a - don't know -- maybe a misprint
4385 d - initialized data
4387 3 - double word aligned (that would be 4 byte boundary)
4390 Tag index tables (also known as the function table) for exception
4391 handling, debugging, etc. */
4394 ppc_pdata (int ignore ATTRIBUTE_UNUSED)
4396 if (pdata_section == 0)
4398 pdata_section = subseg_new (".pdata", 0);
4400 bfd_set_section_flags (stdoutput, pdata_section,
4401 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4402 | SEC_READONLY | SEC_DATA ));
4404 bfd_set_section_alignment (stdoutput, pdata_section, 2);
4408 pdata_section = subseg_new (".pdata", 0);
4410 ppc_set_current_section (pdata_section);
4413 /* pseudo-op: .ydata
4414 behaviour: predefined read only data section
4418 initial: .section .ydata "drw3"
4419 a - don't know -- maybe a misprint
4420 d - initialized data
4422 3 - double word aligned (that would be 4 byte boundary)
4424 Tag tables (also known as the scope table) for exception handling,
4428 ppc_ydata (int ignore ATTRIBUTE_UNUSED)
4430 if (ydata_section == 0)
4432 ydata_section = subseg_new (".ydata", 0);
4433 bfd_set_section_flags (stdoutput, ydata_section,
4434 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4435 | SEC_READONLY | SEC_DATA ));
4437 bfd_set_section_alignment (stdoutput, ydata_section, 3);
4441 ydata_section = subseg_new (".ydata", 0);
4443 ppc_set_current_section (ydata_section);
4446 /* pseudo-op: .reldata
4447 behaviour: predefined read write data section
4448 double word aligned (4-byte)
4449 FIXME: relocation is applied to it
4450 FIXME: what's the difference between this and .data?
4453 initial: .section .reldata "drw3"
4454 d - initialized data
4457 3 - double word aligned (that would be 8 byte boundary)
4460 Like .data, but intended to hold data subject to relocation, such as
4461 function descriptors, etc. */
4464 ppc_reldata (int ignore ATTRIBUTE_UNUSED)
4466 if (reldata_section == 0)
4468 reldata_section = subseg_new (".reldata", 0);
4470 bfd_set_section_flags (stdoutput, reldata_section,
4471 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4474 bfd_set_section_alignment (stdoutput, reldata_section, 2);
4478 reldata_section = subseg_new (".reldata", 0);
4480 ppc_set_current_section (reldata_section);
4483 /* pseudo-op: .rdata
4484 behaviour: predefined read only data section
4488 initial: .section .rdata "dr3"
4489 d - initialized data
4491 3 - double word aligned (that would be 4 byte boundary) */
4494 ppc_rdata (int ignore ATTRIBUTE_UNUSED)
4496 if (rdata_section == 0)
4498 rdata_section = subseg_new (".rdata", 0);
4499 bfd_set_section_flags (stdoutput, rdata_section,
4500 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4501 | SEC_READONLY | SEC_DATA ));
4503 bfd_set_section_alignment (stdoutput, rdata_section, 2);
4507 rdata_section = subseg_new (".rdata", 0);
4509 ppc_set_current_section (rdata_section);
4512 /* pseudo-op: .ualong
4513 behaviour: much like .int, with the exception that no alignment is
4515 FIXME: test the alignment statement
4520 ppc_ualong (int ignore ATTRIBUTE_UNUSED)
4526 /* pseudo-op: .znop <symbol name>
4527 behaviour: Issue a nop instruction
4528 Issue a IMAGE_REL_PPC_IFGLUE relocation against it, using
4529 the supplied symbol name.
4531 warnings: Missing symbol name */
4534 ppc_znop (int ignore ATTRIBUTE_UNUSED)
4537 const struct powerpc_opcode *opcode;
4548 /* Strip out the symbol name. */
4549 symbol_name = input_line_pointer;
4550 c = get_symbol_end ();
4552 name = xmalloc (input_line_pointer - symbol_name + 1);
4553 strcpy (name, symbol_name);
4555 sym = symbol_find_or_make (name);
4557 *input_line_pointer = c;
4561 /* Look up the opcode in the hash table. */
4562 opcode = (const struct powerpc_opcode *) hash_find (ppc_hash, "nop");
4564 /* Stick in the nop. */
4565 insn = opcode->opcode;
4567 /* Write out the instruction. */
4569 md_number_to_chars (f, insn, 4);
4571 f - frag_now->fr_literal,
4576 BFD_RELOC_16_GOT_PCREL);
4586 ppc_pe_comm (int lcomm)
4595 name = input_line_pointer;
4596 c = get_symbol_end ();
4598 /* just after name is now '\0'. */
4599 p = input_line_pointer;
4602 if (*input_line_pointer != ',')
4604 as_bad (_("Expected comma after symbol-name: rest of line ignored."));
4605 ignore_rest_of_line ();
4609 input_line_pointer++; /* skip ',' */
4610 if ((temp = get_absolute_expression ()) < 0)
4612 as_warn (_(".COMMon length (%ld.) <0! Ignored."), (long) temp);
4613 ignore_rest_of_line ();
4619 /* The third argument to .comm is the alignment. */
4620 if (*input_line_pointer != ',')
4624 ++input_line_pointer;
4625 align = get_absolute_expression ();
4628 as_warn (_("ignoring bad alignment"));
4635 symbolP = symbol_find_or_make (name);
4638 if (S_IS_DEFINED (symbolP) && ! S_IS_COMMON (symbolP))
4640 as_bad (_("Ignoring attempt to re-define symbol `%s'."),
4641 S_GET_NAME (symbolP));
4642 ignore_rest_of_line ();
4646 if (S_GET_VALUE (symbolP))
4648 if (S_GET_VALUE (symbolP) != (valueT) temp)
4649 as_bad (_("Length of .comm \"%s\" is already %ld. Not changed to %ld."),
4650 S_GET_NAME (symbolP),
4651 (long) S_GET_VALUE (symbolP),
4656 S_SET_VALUE (symbolP, (valueT) temp);
4657 S_SET_EXTERNAL (symbolP);
4658 S_SET_SEGMENT (symbolP, bfd_com_section_ptr);
4661 demand_empty_rest_of_line ();
4665 * implement the .section pseudo op:
4666 * .section name {, "flags"}
4668 * | +--- optional flags: 'b' for bss
4670 * +-- section name 'l' for lib
4674 * 'd' (apparently m88k for data)
4676 * But if the argument is not a quoted string, treat it as a
4677 * subsegment number.
4679 * FIXME: this is a copy of the section processing from obj-coff.c, with
4680 * additions/changes for the moto-pas assembler support. There are three
4683 * FIXME: I just noticed this. This doesn't work at all really. It it
4684 * setting bits that bfd probably neither understands or uses. The
4685 * correct approach (?) will have to incorporate extra fields attached
4686 * to the section to hold the system specific stuff. (krk)
4689 * 'a' - unknown - referred to in documentation, but no definition supplied
4690 * 'c' - section has code
4691 * 'd' - section has initialized data
4692 * 'u' - section has uninitialized data
4693 * 'i' - section contains directives (info)
4694 * 'n' - section can be discarded
4695 * 'R' - remove section at link time
4697 * Section Protection:
4698 * 'r' - section is readable
4699 * 'w' - section is writeable
4700 * 'x' - section is executable
4701 * 's' - section is sharable
4703 * Section Alignment:
4704 * '0' - align to byte boundary
4705 * '1' - align to halfword undary
4706 * '2' - align to word boundary
4707 * '3' - align to doubleword boundary
4708 * '4' - align to quadword boundary
4709 * '5' - align to 32 byte boundary
4710 * '6' - align to 64 byte boundary
4715 ppc_pe_section (int ignore ATTRIBUTE_UNUSED)
4717 /* Strip out the section name. */
4726 section_name = input_line_pointer;
4727 c = get_symbol_end ();
4729 name = xmalloc (input_line_pointer - section_name + 1);
4730 strcpy (name, section_name);
4732 *input_line_pointer = c;
4737 flags = SEC_NO_FLAGS;
4739 if (strcmp (name, ".idata$2") == 0)
4743 else if (strcmp (name, ".idata$3") == 0)
4747 else if (strcmp (name, ".idata$4") == 0)
4751 else if (strcmp (name, ".idata$5") == 0)
4755 else if (strcmp (name, ".idata$6") == 0)
4760 /* Default alignment to 16 byte boundary. */
4763 if (*input_line_pointer == ',')
4765 ++input_line_pointer;
4767 if (*input_line_pointer != '"')
4768 exp = get_absolute_expression ();
4771 ++input_line_pointer;
4772 while (*input_line_pointer != '"'
4773 && ! is_end_of_line[(unsigned char) *input_line_pointer])
4775 switch (*input_line_pointer)
4777 /* Section Contents */
4778 case 'a': /* unknown */
4779 as_bad (_("Unsupported section attribute -- 'a'"));
4781 case 'c': /* code section */
4784 case 'd': /* section has initialized data */
4787 case 'u': /* section has uninitialized data */
4788 /* FIXME: This is IMAGE_SCN_CNT_UNINITIALIZED_DATA
4792 case 'i': /* section contains directives (info) */
4793 /* FIXME: This is IMAGE_SCN_LNK_INFO
4795 flags |= SEC_HAS_CONTENTS;
4797 case 'n': /* section can be discarded */
4800 case 'R': /* Remove section at link time */
4801 flags |= SEC_NEVER_LOAD;
4803 #if IFLICT_BRAIN_DAMAGE
4804 /* Section Protection */
4805 case 'r': /* section is readable */
4806 flags |= IMAGE_SCN_MEM_READ;
4808 case 'w': /* section is writeable */
4809 flags |= IMAGE_SCN_MEM_WRITE;
4811 case 'x': /* section is executable */
4812 flags |= IMAGE_SCN_MEM_EXECUTE;
4814 case 's': /* section is sharable */
4815 flags |= IMAGE_SCN_MEM_SHARED;
4818 /* Section Alignment */
4819 case '0': /* align to byte boundary */
4820 flags |= IMAGE_SCN_ALIGN_1BYTES;
4823 case '1': /* align to halfword boundary */
4824 flags |= IMAGE_SCN_ALIGN_2BYTES;
4827 case '2': /* align to word boundary */
4828 flags |= IMAGE_SCN_ALIGN_4BYTES;
4831 case '3': /* align to doubleword boundary */
4832 flags |= IMAGE_SCN_ALIGN_8BYTES;
4835 case '4': /* align to quadword boundary */
4836 flags |= IMAGE_SCN_ALIGN_16BYTES;
4839 case '5': /* align to 32 byte boundary */
4840 flags |= IMAGE_SCN_ALIGN_32BYTES;
4843 case '6': /* align to 64 byte boundary */
4844 flags |= IMAGE_SCN_ALIGN_64BYTES;
4849 as_bad (_("unknown section attribute '%c'"),
4850 *input_line_pointer);
4853 ++input_line_pointer;
4855 if (*input_line_pointer == '"')
4856 ++input_line_pointer;
4860 sec = subseg_new (name, (subsegT) exp);
4862 ppc_set_current_section (sec);
4864 if (flags != SEC_NO_FLAGS)
4866 if (! bfd_set_section_flags (stdoutput, sec, flags))
4867 as_bad (_("error setting flags for \"%s\": %s"),
4868 bfd_section_name (stdoutput, sec),
4869 bfd_errmsg (bfd_get_error ()));
4872 bfd_set_section_alignment (stdoutput, sec, align);
4876 ppc_pe_function (int ignore ATTRIBUTE_UNUSED)
4882 name = input_line_pointer;
4883 endc = get_symbol_end ();
4885 ext_sym = symbol_find_or_make (name);
4887 *input_line_pointer = endc;
4889 S_SET_DATA_TYPE (ext_sym, DT_FCN << N_BTSHFT);
4890 SF_SET_FUNCTION (ext_sym);
4891 SF_SET_PROCESS (ext_sym);
4892 coff_add_linesym (ext_sym);
4894 demand_empty_rest_of_line ();
4898 ppc_pe_tocd (int ignore ATTRIBUTE_UNUSED)
4900 if (tocdata_section == 0)
4902 tocdata_section = subseg_new (".tocd", 0);
4903 /* FIXME: section flags won't work. */
4904 bfd_set_section_flags (stdoutput, tocdata_section,
4905 (SEC_ALLOC | SEC_LOAD | SEC_RELOC
4906 | SEC_READONLY | SEC_DATA));
4908 bfd_set_section_alignment (stdoutput, tocdata_section, 2);
4912 rdata_section = subseg_new (".tocd", 0);
4915 ppc_set_current_section (tocdata_section);
4917 demand_empty_rest_of_line ();
4920 /* Don't adjust TOC relocs to use the section symbol. */
4923 ppc_pe_fix_adjustable (fixS *fix)
4925 return fix->fx_r_type != BFD_RELOC_PPC_TOC16;
4932 /* XCOFF specific symbol and file handling. */
4934 /* Canonicalize the symbol name. We use the to force the suffix, if
4935 any, to use square brackets, and to be in upper case. */
4938 ppc_canonicalize_symbol_name (char *name)
4942 if (ppc_stab_symbol)
4945 for (s = name; *s != '\0' && *s != '{' && *s != '['; s++)
4959 for (s++; *s != '\0' && *s != brac; s++)
4962 if (*s == '\0' || s[1] != '\0')
4963 as_bad (_("bad symbol suffix"));
4971 /* Set the class of a symbol based on the suffix, if any. This is
4972 called whenever a new symbol is created. */
4975 ppc_symbol_new_hook (symbolS *sym)
4977 struct ppc_tc_sy *tc;
4980 tc = symbol_get_tc (sym);
4983 tc->symbol_class = -1;
4984 tc->real_name = NULL;
4990 if (ppc_stab_symbol)
4993 s = strchr (S_GET_NAME (sym), '[');
4994 if (s == (const char *) NULL)
4996 /* There is no suffix. */
5005 if (strcmp (s, "BS]") == 0)
5006 tc->symbol_class = XMC_BS;
5009 if (strcmp (s, "DB]") == 0)
5010 tc->symbol_class = XMC_DB;
5011 else if (strcmp (s, "DS]") == 0)
5012 tc->symbol_class = XMC_DS;
5015 if (strcmp (s, "GL]") == 0)
5016 tc->symbol_class = XMC_GL;
5019 if (strcmp (s, "PR]") == 0)
5020 tc->symbol_class = XMC_PR;
5023 if (strcmp (s, "RO]") == 0)
5024 tc->symbol_class = XMC_RO;
5025 else if (strcmp (s, "RW]") == 0)
5026 tc->symbol_class = XMC_RW;
5029 if (strcmp (s, "SV]") == 0)
5030 tc->symbol_class = XMC_SV;
5033 if (strcmp (s, "TC]") == 0)
5034 tc->symbol_class = XMC_TC;
5035 else if (strcmp (s, "TI]") == 0)
5036 tc->symbol_class = XMC_TI;
5037 else if (strcmp (s, "TB]") == 0)
5038 tc->symbol_class = XMC_TB;
5039 else if (strcmp (s, "TC0]") == 0 || strcmp (s, "T0]") == 0)
5040 tc->symbol_class = XMC_TC0;
5043 if (strcmp (s, "UA]") == 0)
5044 tc->symbol_class = XMC_UA;
5045 else if (strcmp (s, "UC]") == 0)
5046 tc->symbol_class = XMC_UC;
5049 if (strcmp (s, "XO]") == 0)
5050 tc->symbol_class = XMC_XO;
5054 if (tc->symbol_class == -1)
5055 as_bad (_("Unrecognized symbol suffix"));
5058 /* Set the class of a label based on where it is defined. This
5059 handles symbols without suffixes. Also, move the symbol so that it
5060 follows the csect symbol. */
5063 ppc_frob_label (symbolS *sym)
5065 if (ppc_current_csect != (symbolS *) NULL)
5067 if (symbol_get_tc (sym)->symbol_class == -1)
5068 symbol_get_tc (sym)->symbol_class = symbol_get_tc (ppc_current_csect)->symbol_class;
5070 symbol_remove (sym, &symbol_rootP, &symbol_lastP);
5071 symbol_append (sym, symbol_get_tc (ppc_current_csect)->within,
5072 &symbol_rootP, &symbol_lastP);
5073 symbol_get_tc (ppc_current_csect)->within = sym;
5077 dwarf2_emit_label (sym);
5081 /* This variable is set by ppc_frob_symbol if any absolute symbols are
5082 seen. It tells ppc_adjust_symtab whether it needs to look through
5085 static bfd_boolean ppc_saw_abs;
5087 /* Change the name of a symbol just before writing it out. Set the
5088 real name if the .rename pseudo-op was used. Otherwise, remove any
5089 class suffix. Return 1 if the symbol should not be included in the
5093 ppc_frob_symbol (symbolS *sym)
5095 static symbolS *ppc_last_function;
5096 static symbolS *set_end;
5098 /* Discard symbols that should not be included in the output symbol
5100 if (! symbol_used_in_reloc_p (sym)
5101 && ((symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) != 0
5102 || (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5103 && ! symbol_get_tc (sym)->output
5104 && S_GET_STORAGE_CLASS (sym) != C_FILE)))
5107 /* This one will disappear anyway. Don't make a csect sym for it. */
5108 if (sym == abs_section_sym)
5111 if (symbol_get_tc (sym)->real_name != (char *) NULL)
5112 S_SET_NAME (sym, symbol_get_tc (sym)->real_name);
5118 name = S_GET_NAME (sym);
5119 s = strchr (name, '[');
5120 if (s != (char *) NULL)
5126 snew = xmalloc (len + 1);
5127 memcpy (snew, name, len);
5130 S_SET_NAME (sym, snew);
5134 if (set_end != (symbolS *) NULL)
5136 SA_SET_SYM_ENDNDX (set_end, sym);
5140 if (SF_GET_FUNCTION (sym))
5142 if (ppc_last_function != (symbolS *) NULL)
5143 as_bad (_("two .function pseudo-ops with no intervening .ef"));
5144 ppc_last_function = sym;
5145 if (symbol_get_tc (sym)->size != (symbolS *) NULL)
5147 resolve_symbol_value (symbol_get_tc (sym)->size);
5148 SA_SET_SYM_FSIZE (sym,
5149 (long) S_GET_VALUE (symbol_get_tc (sym)->size));
5152 else if (S_GET_STORAGE_CLASS (sym) == C_FCN
5153 && strcmp (S_GET_NAME (sym), ".ef") == 0)
5155 if (ppc_last_function == (symbolS *) NULL)
5156 as_bad (_(".ef with no preceding .function"));
5159 set_end = ppc_last_function;
5160 ppc_last_function = NULL;
5162 /* We don't have a C_EFCN symbol, but we need to force the
5163 COFF backend to believe that it has seen one. */
5164 coff_last_function = NULL;
5168 if (! (S_IS_EXTERNAL (sym) || S_IS_WEAK (sym))
5169 && (symbol_get_bfdsym (sym)->flags & BSF_SECTION_SYM) == 0
5170 && S_GET_STORAGE_CLASS (sym) != C_FILE
5171 && S_GET_STORAGE_CLASS (sym) != C_FCN
5172 && S_GET_STORAGE_CLASS (sym) != C_BLOCK
5173 && S_GET_STORAGE_CLASS (sym) != C_BSTAT
5174 && S_GET_STORAGE_CLASS (sym) != C_ESTAT
5175 && S_GET_STORAGE_CLASS (sym) != C_BINCL
5176 && S_GET_STORAGE_CLASS (sym) != C_EINCL
5177 && S_GET_SEGMENT (sym) != ppc_coff_debug_section)
5178 S_SET_STORAGE_CLASS (sym, C_HIDEXT);
5180 if (S_GET_STORAGE_CLASS (sym) == C_EXT
5181 || S_GET_STORAGE_CLASS (sym) == C_AIX_WEAKEXT
5182 || S_GET_STORAGE_CLASS (sym) == C_HIDEXT)
5185 union internal_auxent *a;
5187 /* Create a csect aux. */
5188 i = S_GET_NUMBER_AUXILIARY (sym);
5189 S_SET_NUMBER_AUXILIARY (sym, i + 1);
5190 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].u.auxent;
5191 if (symbol_get_tc (sym)->symbol_class == XMC_TC0)
5193 /* This is the TOC table. */
5194 know (strcmp (S_GET_NAME (sym), "TOC") == 0);
5195 a->x_csect.x_scnlen.l = 0;
5196 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5198 else if (symbol_get_tc (sym)->subseg != 0)
5200 /* This is a csect symbol. x_scnlen is the size of the
5202 if (symbol_get_tc (sym)->next == (symbolS *) NULL)
5203 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5204 S_GET_SEGMENT (sym))
5205 - S_GET_VALUE (sym));
5208 resolve_symbol_value (symbol_get_tc (sym)->next);
5209 a->x_csect.x_scnlen.l = (S_GET_VALUE (symbol_get_tc (sym)->next)
5210 - S_GET_VALUE (sym));
5212 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_SD;
5214 else if (S_GET_SEGMENT (sym) == bss_section)
5216 /* This is a common symbol. */
5217 a->x_csect.x_scnlen.l = symbol_get_frag (sym)->fr_offset;
5218 a->x_csect.x_smtyp = (symbol_get_tc (sym)->align << 3) | XTY_CM;
5219 if (S_IS_EXTERNAL (sym))
5220 symbol_get_tc (sym)->symbol_class = XMC_RW;
5222 symbol_get_tc (sym)->symbol_class = XMC_BS;
5224 else if (S_GET_SEGMENT (sym) == absolute_section)
5226 /* This is an absolute symbol. The csect will be created by
5227 ppc_adjust_symtab. */
5229 a->x_csect.x_smtyp = XTY_LD;
5230 if (symbol_get_tc (sym)->symbol_class == -1)
5231 symbol_get_tc (sym)->symbol_class = XMC_XO;
5233 else if (! S_IS_DEFINED (sym))
5235 /* This is an external symbol. */
5236 a->x_csect.x_scnlen.l = 0;
5237 a->x_csect.x_smtyp = XTY_ER;
5239 else if (symbol_get_tc (sym)->symbol_class == XMC_TC)
5243 /* This is a TOC definition. x_scnlen is the size of the
5245 next = symbol_next (sym);
5246 while (symbol_get_tc (next)->symbol_class == XMC_TC0)
5247 next = symbol_next (next);
5248 if (next == (symbolS *) NULL
5249 || symbol_get_tc (next)->symbol_class != XMC_TC)
5251 if (ppc_after_toc_frag == (fragS *) NULL)
5252 a->x_csect.x_scnlen.l = (bfd_section_size (stdoutput,
5254 - S_GET_VALUE (sym));
5256 a->x_csect.x_scnlen.l = (ppc_after_toc_frag->fr_address
5257 - S_GET_VALUE (sym));
5261 resolve_symbol_value (next);
5262 a->x_csect.x_scnlen.l = (S_GET_VALUE (next)
5263 - S_GET_VALUE (sym));
5265 a->x_csect.x_smtyp = (2 << 3) | XTY_SD;
5271 /* This is a normal symbol definition. x_scnlen is the
5272 symbol index of the containing csect. */
5273 if (S_GET_SEGMENT (sym) == text_section)
5274 csect = ppc_text_csects;
5275 else if (S_GET_SEGMENT (sym) == data_section)
5276 csect = ppc_data_csects;
5280 /* Skip the initial dummy symbol. */
5281 csect = symbol_get_tc (csect)->next;
5283 if (csect == (symbolS *) NULL)
5285 as_warn (_("warning: symbol %s has no csect"), S_GET_NAME (sym));
5286 a->x_csect.x_scnlen.l = 0;
5290 while (symbol_get_tc (csect)->next != (symbolS *) NULL)
5292 resolve_symbol_value (symbol_get_tc (csect)->next);
5293 if (S_GET_VALUE (symbol_get_tc (csect)->next)
5294 > S_GET_VALUE (sym))
5296 csect = symbol_get_tc (csect)->next;
5299 a->x_csect.x_scnlen.p =
5300 coffsymbol (symbol_get_bfdsym (csect))->native;
5301 coffsymbol (symbol_get_bfdsym (sym))->native[i + 1].fix_scnlen =
5304 a->x_csect.x_smtyp = XTY_LD;
5307 a->x_csect.x_parmhash = 0;
5308 a->x_csect.x_snhash = 0;
5309 if (symbol_get_tc (sym)->symbol_class == -1)
5310 a->x_csect.x_smclas = XMC_PR;
5312 a->x_csect.x_smclas = symbol_get_tc (sym)->symbol_class;
5313 a->x_csect.x_stab = 0;
5314 a->x_csect.x_snstab = 0;
5316 /* Don't let the COFF backend resort these symbols. */
5317 symbol_get_bfdsym (sym)->flags |= BSF_NOT_AT_END;
5319 else if (S_GET_STORAGE_CLASS (sym) == C_BSTAT)
5321 /* We want the value to be the symbol index of the referenced
5322 csect symbol. BFD will do that for us if we set the right
5324 asymbol *bsym = symbol_get_bfdsym (symbol_get_tc (sym)->within);
5325 combined_entry_type *c = coffsymbol (bsym)->native;
5327 S_SET_VALUE (sym, (valueT) (size_t) c);
5328 coffsymbol (symbol_get_bfdsym (sym))->native->fix_value = 1;
5330 else if (S_GET_STORAGE_CLASS (sym) == C_STSYM)
5335 /* The value is the offset from the enclosing csect. */
5336 block = symbol_get_tc (sym)->within;
5337 csect = symbol_get_tc (block)->within;
5338 resolve_symbol_value (csect);
5339 S_SET_VALUE (sym, S_GET_VALUE (sym) - S_GET_VALUE (csect));
5341 else if (S_GET_STORAGE_CLASS (sym) == C_BINCL
5342 || S_GET_STORAGE_CLASS (sym) == C_EINCL)
5344 /* We want the value to be a file offset into the line numbers.
5345 BFD will do that for us if we set the right flags. We have
5346 already set the value correctly. */
5347 coffsymbol (symbol_get_bfdsym (sym))->native->fix_line = 1;
5353 /* Adjust the symbol table. This creates csect symbols for all
5354 absolute symbols. */
5357 ppc_adjust_symtab (void)
5364 for (sym = symbol_rootP; sym != NULL; sym = symbol_next (sym))
5368 union internal_auxent *a;
5370 if (S_GET_SEGMENT (sym) != absolute_section)
5373 csect = symbol_create (".abs[XO]", absolute_section,
5374 S_GET_VALUE (sym), &zero_address_frag);
5375 symbol_get_bfdsym (csect)->value = S_GET_VALUE (sym);
5376 S_SET_STORAGE_CLASS (csect, C_HIDEXT);
5377 i = S_GET_NUMBER_AUXILIARY (csect);
5378 S_SET_NUMBER_AUXILIARY (csect, i + 1);
5379 a = &coffsymbol (symbol_get_bfdsym (csect))->native[i + 1].u.auxent;
5380 a->x_csect.x_scnlen.l = 0;
5381 a->x_csect.x_smtyp = XTY_SD;
5382 a->x_csect.x_parmhash = 0;
5383 a->x_csect.x_snhash = 0;
5384 a->x_csect.x_smclas = XMC_XO;
5385 a->x_csect.x_stab = 0;
5386 a->x_csect.x_snstab = 0;
5388 symbol_insert (csect, sym, &symbol_rootP, &symbol_lastP);
5390 i = S_GET_NUMBER_AUXILIARY (sym);
5391 a = &coffsymbol (symbol_get_bfdsym (sym))->native[i].u.auxent;
5392 a->x_csect.x_scnlen.p = coffsymbol (symbol_get_bfdsym (csect))->native;
5393 coffsymbol (symbol_get_bfdsym (sym))->native[i].fix_scnlen = 1;
5396 ppc_saw_abs = FALSE;
5399 /* Set the VMA for a section. This is called on all the sections in
5403 ppc_frob_section (asection *sec)
5405 static bfd_vma vma = 0;
5407 vma = md_section_align (sec, vma);
5408 bfd_set_section_vma (stdoutput, sec, vma);
5409 vma += bfd_section_size (stdoutput, sec);
5412 #endif /* OBJ_XCOFF */
5415 md_atof (int type, char *litp, int *sizep)
5417 return ieee_md_atof (type, litp, sizep, target_big_endian);
5420 /* Write a value out to the object file, using the appropriate
5424 md_number_to_chars (char *buf, valueT val, int n)
5426 if (target_big_endian)
5427 number_to_chars_bigendian (buf, val, n);
5429 number_to_chars_littleendian (buf, val, n);
5432 /* Align a section (I don't know why this is machine dependent). */
5435 md_section_align (asection *seg ATTRIBUTE_UNUSED, valueT addr)
5440 int align = bfd_get_section_alignment (stdoutput, seg);
5442 return ((addr + (1 << align) - 1) & (-1 << align));
5446 /* We don't have any form of relaxing. */
5449 md_estimate_size_before_relax (fragS *fragp ATTRIBUTE_UNUSED,
5450 asection *seg ATTRIBUTE_UNUSED)
5456 /* Convert a machine dependent frag. We never generate these. */
5459 md_convert_frag (bfd *abfd ATTRIBUTE_UNUSED,
5460 asection *sec ATTRIBUTE_UNUSED,
5461 fragS *fragp ATTRIBUTE_UNUSED)
5466 /* We have no need to default values of symbols. */
5469 md_undefined_symbol (char *name ATTRIBUTE_UNUSED)
5474 /* Functions concerning relocs. */
5476 /* The location from which a PC relative jump should be calculated,
5477 given a PC relative reloc. */
5480 md_pcrel_from_section (fixS *fixp, segT sec ATTRIBUTE_UNUSED)
5482 return fixp->fx_frag->fr_address + fixp->fx_where;
5487 /* This is called to see whether a fixup should be adjusted to use a
5488 section symbol. We take the opportunity to change a fixup against
5489 a symbol in the TOC subsegment into a reloc against the
5490 corresponding .tc symbol. */
5493 ppc_fix_adjustable (fixS *fix)
5495 valueT val = resolve_symbol_value (fix->fx_addsy);
5496 segT symseg = S_GET_SEGMENT (fix->fx_addsy);
5497 TC_SYMFIELD_TYPE *tc;
5499 if (symseg == absolute_section)
5502 if (ppc_toc_csect != (symbolS *) NULL
5503 && fix->fx_addsy != ppc_toc_csect
5504 && symseg == data_section
5505 && val >= ppc_toc_frag->fr_address
5506 && (ppc_after_toc_frag == (fragS *) NULL
5507 || val < ppc_after_toc_frag->fr_address))
5511 for (sy = symbol_next (ppc_toc_csect);
5512 sy != (symbolS *) NULL;
5513 sy = symbol_next (sy))
5515 TC_SYMFIELD_TYPE *sy_tc = symbol_get_tc (sy);
5517 if (sy_tc->symbol_class == XMC_TC0)
5519 if (sy_tc->symbol_class != XMC_TC)
5521 if (val == resolve_symbol_value (sy))
5524 fix->fx_addnumber = val - ppc_toc_frag->fr_address;
5529 as_bad_where (fix->fx_file, fix->fx_line,
5530 _("symbol in .toc does not match any .tc"));
5533 /* Possibly adjust the reloc to be against the csect. */
5534 tc = symbol_get_tc (fix->fx_addsy);
5536 && tc->symbol_class != XMC_TC0
5537 && tc->symbol_class != XMC_TC
5538 && symseg != bss_section
5539 /* Don't adjust if this is a reloc in the toc section. */
5540 && (symseg != data_section
5541 || ppc_toc_csect == NULL
5542 || val < ppc_toc_frag->fr_address
5543 || (ppc_after_toc_frag != NULL
5544 && val >= ppc_after_toc_frag->fr_address)))
5547 symbolS *next_csect;
5549 if (symseg == text_section)
5550 csect = ppc_text_csects;
5551 else if (symseg == data_section)
5552 csect = ppc_data_csects;
5556 /* Skip the initial dummy symbol. */
5557 csect = symbol_get_tc (csect)->next;
5559 if (csect != (symbolS *) NULL)
5561 while ((next_csect = symbol_get_tc (csect)->next) != (symbolS *) NULL
5562 && (symbol_get_frag (next_csect)->fr_address <= val))
5564 /* If the csect address equals the symbol value, then we
5565 have to look through the full symbol table to see
5566 whether this is the csect we want. Note that we will
5567 only get here if the csect has zero length. */
5568 if (symbol_get_frag (csect)->fr_address == val
5569 && S_GET_VALUE (csect) == val)
5573 for (scan = symbol_next (csect);
5575 scan = symbol_next (scan))
5577 if (symbol_get_tc (scan)->subseg != 0)
5579 if (scan == fix->fx_addsy)
5583 /* If we found the symbol before the next csect
5584 symbol, then this is the csect we want. */
5585 if (scan == fix->fx_addsy)
5592 fix->fx_offset += val - symbol_get_frag (csect)->fr_address;
5593 fix->fx_addsy = csect;
5598 /* Adjust a reloc against a .lcomm symbol to be against the base
5600 if (symseg == bss_section
5601 && ! S_IS_EXTERNAL (fix->fx_addsy))
5603 symbolS *sy = symbol_get_frag (fix->fx_addsy)->fr_symbol;
5605 fix->fx_offset += val - resolve_symbol_value (sy);
5612 /* A reloc from one csect to another must be kept. The assembler
5613 will, of course, keep relocs between sections, and it will keep
5614 absolute relocs, but we need to force it to keep PC relative relocs
5615 between two csects in the same section. */
5618 ppc_force_relocation (fixS *fix)
5620 /* At this point fix->fx_addsy should already have been converted to
5621 a csect symbol. If the csect does not include the fragment, then
5622 we need to force the relocation. */
5624 && fix->fx_addsy != NULL
5625 && symbol_get_tc (fix->fx_addsy)->subseg != 0
5626 && ((symbol_get_frag (fix->fx_addsy)->fr_address
5627 > fix->fx_frag->fr_address)
5628 || (symbol_get_tc (fix->fx_addsy)->next != NULL
5629 && (symbol_get_frag (symbol_get_tc (fix->fx_addsy)->next)->fr_address
5630 <= fix->fx_frag->fr_address))))
5633 return generic_force_reloc (fix);
5636 #endif /* OBJ_XCOFF */
5639 /* If this function returns non-zero, it guarantees that a relocation
5640 will be emitted for a fixup. */
5643 ppc_force_relocation (fixS *fix)
5645 /* Branch prediction relocations must force a relocation, as must
5646 the vtable description relocs. */
5647 switch (fix->fx_r_type)
5649 case BFD_RELOC_PPC_B16_BRTAKEN:
5650 case BFD_RELOC_PPC_B16_BRNTAKEN:
5651 case BFD_RELOC_PPC_BA16_BRTAKEN:
5652 case BFD_RELOC_PPC_BA16_BRNTAKEN:
5653 case BFD_RELOC_24_PLT_PCREL:
5654 case BFD_RELOC_PPC64_TOC:
5660 if (fix->fx_r_type >= BFD_RELOC_PPC_TLS
5661 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA)
5664 return generic_force_reloc (fix);
5668 ppc_fix_adjustable (fixS *fix)
5670 return (fix->fx_r_type != BFD_RELOC_16_GOTOFF
5671 && fix->fx_r_type != BFD_RELOC_LO16_GOTOFF
5672 && fix->fx_r_type != BFD_RELOC_HI16_GOTOFF
5673 && fix->fx_r_type != BFD_RELOC_HI16_S_GOTOFF
5674 && fix->fx_r_type != BFD_RELOC_GPREL16
5675 && fix->fx_r_type != BFD_RELOC_VTABLE_INHERIT
5676 && fix->fx_r_type != BFD_RELOC_VTABLE_ENTRY
5677 && !(fix->fx_r_type >= BFD_RELOC_PPC_TLS
5678 && fix->fx_r_type <= BFD_RELOC_PPC64_DTPREL16_HIGHESTA));
5682 /* Implement HANDLE_ALIGN. This writes the NOP pattern into an
5683 rs_align_code frag. */
5686 ppc_handle_align (struct frag *fragP)
5688 valueT count = (fragP->fr_next->fr_address
5689 - (fragP->fr_address + fragP->fr_fix));
5691 if (count != 0 && (count & 3) == 0)
5693 char *dest = fragP->fr_literal + fragP->fr_fix;
5696 md_number_to_chars (dest, 0x60000000, 4);
5698 if ((ppc_cpu & PPC_OPCODE_POWER6) != 0
5699 || (ppc_cpu & PPC_OPCODE_POWER7) != 0)
5701 /* For power6 and power7, we want the last nop to be a group
5702 terminating one. Do this by inserting an rs_fill frag immediately
5703 after this one, with its address set to the last nop location.
5704 This will automatically reduce the number of nops in the current
5708 struct frag *group_nop = xmalloc (SIZEOF_STRUCT_FRAG + 4);
5710 memcpy (group_nop, fragP, SIZEOF_STRUCT_FRAG);
5711 group_nop->fr_address = group_nop->fr_next->fr_address - 4;
5712 group_nop->fr_fix = 0;
5713 group_nop->fr_offset = 1;
5714 group_nop->fr_type = rs_fill;
5715 fragP->fr_next = group_nop;
5716 dest = group_nop->fr_literal;
5719 if ((ppc_cpu & PPC_OPCODE_POWER7) != 0)
5720 /* power7 group terminating nop: "ori 2,2,0". */
5721 md_number_to_chars (dest, 0x60420000, 4);
5723 /* power6 group terminating nop: "ori 1,1,0". */
5724 md_number_to_chars (dest, 0x60210000, 4);
5729 /* Apply a fixup to the object code. This is called for all the
5730 fixups we generated by the call to fix_new_exp, above. In the call
5731 above we used a reloc code which was the largest legal reloc code
5732 plus the operand index. Here we undo that to recover the operand
5733 index. At this point all symbol values should be fully resolved,
5734 and we attempt to completely resolve the reloc. If we can not do
5735 that, we determine the correct reloc code and put it back in the
5739 md_apply_fix (fixS *fixP, valueT *valP, segT seg ATTRIBUTE_UNUSED)
5741 valueT value = * valP;
5744 if (fixP->fx_addsy != NULL)
5746 /* Hack around bfd_install_relocation brain damage. */
5748 value += fixP->fx_frag->fr_address + fixP->fx_where;
5753 /* FIXME FIXME FIXME: The value we are passed in *valP includes
5754 the symbol values. If we are doing this relocation the code in
5755 write.c is going to call bfd_install_relocation, which is also
5756 going to use the symbol value. That means that if the reloc is
5757 fully resolved we want to use *valP since bfd_install_relocation is
5759 However, if the reloc is not fully resolved we do not want to
5760 use *valP, and must use fx_offset instead. If the relocation
5761 is PC-relative, we then need to re-apply md_pcrel_from_section
5762 to this new relocation value. */
5763 if (fixP->fx_addsy == (symbolS *) NULL)
5768 value = fixP->fx_offset;
5770 value -= md_pcrel_from_section (fixP, seg);
5774 if (fixP->fx_subsy != (symbolS *) NULL)
5776 /* We can't actually support subtracting a symbol. */
5777 as_bad_where (fixP->fx_file, fixP->fx_line, _("expression too complex"));
5780 if ((int) fixP->fx_r_type >= (int) BFD_RELOC_UNUSED)
5783 const struct powerpc_operand *operand;
5787 opindex = (int) fixP->fx_r_type - (int) BFD_RELOC_UNUSED;
5789 operand = &powerpc_operands[opindex];
5792 /* An instruction like `lwz 9,sym(30)' when `sym' is not a TOC symbol
5793 does not generate a reloc. It uses the offset of `sym' within its
5794 csect. Other usages, such as `.long sym', generate relocs. This
5795 is the documented behaviour of non-TOC symbols. */
5796 if ((operand->flags & PPC_OPERAND_PARENS) != 0
5797 && (operand->bitm & 0xfff0) == 0xfff0
5798 && operand->shift == 0
5799 && (operand->insert == NULL || ppc_obj64)
5800 && fixP->fx_addsy != NULL
5801 && symbol_get_tc (fixP->fx_addsy)->subseg != 0
5802 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC
5803 && symbol_get_tc (fixP->fx_addsy)->symbol_class != XMC_TC0
5804 && S_GET_SEGMENT (fixP->fx_addsy) != bss_section)
5806 value = fixP->fx_offset;
5811 /* Fetch the instruction, insert the fully resolved operand
5812 value, and stuff the instruction back again. */
5813 where = fixP->fx_frag->fr_literal + fixP->fx_where;
5814 if (target_big_endian)
5815 insn = bfd_getb32 ((unsigned char *) where);
5817 insn = bfd_getl32 ((unsigned char *) where);
5818 insn = ppc_insert_operand (insn, operand, (offsetT) value,
5819 fixP->tc_fix_data.ppc_cpu,
5820 fixP->fx_file, fixP->fx_line);
5821 if (target_big_endian)
5822 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
5824 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
5827 /* Nothing else to do here. */
5830 gas_assert (fixP->fx_addsy != NULL);
5832 /* Determine a BFD reloc value based on the operand information.
5833 We are only prepared to turn a few of the operands into
5835 if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5836 && operand->bitm == 0x3fffffc
5837 && operand->shift == 0)
5838 fixP->fx_r_type = BFD_RELOC_PPC_B26;
5839 else if ((operand->flags & PPC_OPERAND_RELATIVE) != 0
5840 && operand->bitm == 0xfffc
5841 && operand->shift == 0)
5843 fixP->fx_r_type = BFD_RELOC_PPC_B16;
5846 if (target_big_endian)
5847 fixP->fx_where += 2;
5850 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5851 && operand->bitm == 0x3fffffc
5852 && operand->shift == 0)
5853 fixP->fx_r_type = BFD_RELOC_PPC_BA26;
5854 else if ((operand->flags & PPC_OPERAND_ABSOLUTE) != 0
5855 && operand->bitm == 0xfffc
5856 && operand->shift == 0)
5858 fixP->fx_r_type = BFD_RELOC_PPC_BA16;
5861 if (target_big_endian)
5862 fixP->fx_where += 2;
5865 #if defined (OBJ_XCOFF) || defined (OBJ_ELF)
5866 else if ((operand->flags & PPC_OPERAND_PARENS) != 0
5867 && (operand->bitm & 0xfff0) == 0xfff0
5868 && operand->shift == 0)
5870 if (ppc_is_toc_sym (fixP->fx_addsy))
5872 fixP->fx_r_type = BFD_RELOC_PPC_TOC16;
5875 && (operand->flags & PPC_OPERAND_DS) != 0)
5876 fixP->fx_r_type = BFD_RELOC_PPC64_TOC16_DS;
5881 fixP->fx_r_type = BFD_RELOC_16;
5884 && (operand->flags & PPC_OPERAND_DS) != 0)
5885 fixP->fx_r_type = BFD_RELOC_PPC64_ADDR16_DS;
5889 if (target_big_endian)
5890 fixP->fx_where += 2;
5892 #endif /* defined (OBJ_XCOFF) || defined (OBJ_ELF) */
5898 /* Use expr_symbol_where to see if this is an expression
5900 if (expr_symbol_where (fixP->fx_addsy, &sfile, &sline))
5901 as_bad_where (fixP->fx_file, fixP->fx_line,
5902 _("unresolved expression that must be resolved"));
5904 as_bad_where (fixP->fx_file, fixP->fx_line,
5905 _("unsupported relocation against %s"),
5906 S_GET_NAME (fixP->fx_addsy));
5914 ppc_elf_validate_fix (fixP, seg);
5916 switch (fixP->fx_r_type)
5918 case BFD_RELOC_CTOR:
5925 fixP->fx_r_type = BFD_RELOC_32_PCREL;
5929 case BFD_RELOC_32_PCREL:
5930 case BFD_RELOC_PPC_EMB_NADDR32:
5931 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5938 fixP->fx_r_type = BFD_RELOC_64_PCREL;
5941 case BFD_RELOC_64_PCREL:
5942 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5946 case BFD_RELOC_GPREL16:
5947 case BFD_RELOC_16_GOT_PCREL:
5948 case BFD_RELOC_16_GOTOFF:
5949 case BFD_RELOC_LO16_GOTOFF:
5950 case BFD_RELOC_HI16_GOTOFF:
5951 case BFD_RELOC_HI16_S_GOTOFF:
5952 case BFD_RELOC_16_BASEREL:
5953 case BFD_RELOC_LO16_BASEREL:
5954 case BFD_RELOC_HI16_BASEREL:
5955 case BFD_RELOC_HI16_S_BASEREL:
5956 case BFD_RELOC_PPC_EMB_NADDR16:
5957 case BFD_RELOC_PPC_EMB_NADDR16_LO:
5958 case BFD_RELOC_PPC_EMB_NADDR16_HI:
5959 case BFD_RELOC_PPC_EMB_NADDR16_HA:
5960 case BFD_RELOC_PPC_EMB_SDAI16:
5961 case BFD_RELOC_PPC_EMB_SDA2REL:
5962 case BFD_RELOC_PPC_EMB_SDA2I16:
5963 case BFD_RELOC_PPC_EMB_RELSEC16:
5964 case BFD_RELOC_PPC_EMB_RELST_LO:
5965 case BFD_RELOC_PPC_EMB_RELST_HI:
5966 case BFD_RELOC_PPC_EMB_RELST_HA:
5967 case BFD_RELOC_PPC_EMB_RELSDA:
5968 case BFD_RELOC_PPC_TOC16:
5970 case BFD_RELOC_PPC64_TOC16_LO:
5971 case BFD_RELOC_PPC64_TOC16_HI:
5972 case BFD_RELOC_PPC64_TOC16_HA:
5976 if (fixP->fx_addsy != NULL)
5977 as_bad_where (fixP->fx_file, fixP->fx_line,
5978 _("cannot emit PC relative %s relocation against %s"),
5979 bfd_get_reloc_code_name (fixP->fx_r_type),
5980 S_GET_NAME (fixP->fx_addsy));
5982 as_bad_where (fixP->fx_file, fixP->fx_line,
5983 _("cannot emit PC relative %s relocation"),
5984 bfd_get_reloc_code_name (fixP->fx_r_type));
5987 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
5993 fixP->fx_r_type = BFD_RELOC_16_PCREL;
5996 case BFD_RELOC_16_PCREL:
5997 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6001 case BFD_RELOC_LO16:
6003 fixP->fx_r_type = BFD_RELOC_LO16_PCREL;
6006 case BFD_RELOC_LO16_PCREL:
6007 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6011 /* This case happens when you write, for example,
6013 where L1 and L2 are defined later. */
6014 case BFD_RELOC_HI16:
6016 fixP->fx_r_type = BFD_RELOC_HI16_PCREL;
6019 case BFD_RELOC_HI16_PCREL:
6020 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6024 case BFD_RELOC_HI16_S:
6026 fixP->fx_r_type = BFD_RELOC_HI16_S_PCREL;
6029 case BFD_RELOC_HI16_S_PCREL:
6030 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6035 case BFD_RELOC_PPC64_HIGHER:
6038 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6039 PPC_HIGHER (value), 2);
6042 case BFD_RELOC_PPC64_HIGHER_S:
6045 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6046 PPC_HIGHERA (value), 2);
6049 case BFD_RELOC_PPC64_HIGHEST:
6052 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6053 PPC_HIGHEST (value), 2);
6056 case BFD_RELOC_PPC64_HIGHEST_S:
6059 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6060 PPC_HIGHESTA (value), 2);
6063 case BFD_RELOC_PPC64_ADDR16_DS:
6064 case BFD_RELOC_PPC64_ADDR16_LO_DS:
6065 case BFD_RELOC_PPC64_GOT16_DS:
6066 case BFD_RELOC_PPC64_GOT16_LO_DS:
6067 case BFD_RELOC_PPC64_PLT16_LO_DS:
6068 case BFD_RELOC_PPC64_SECTOFF_DS:
6069 case BFD_RELOC_PPC64_SECTOFF_LO_DS:
6070 case BFD_RELOC_PPC64_TOC16_DS:
6071 case BFD_RELOC_PPC64_TOC16_LO_DS:
6072 case BFD_RELOC_PPC64_PLTGOT16_DS:
6073 case BFD_RELOC_PPC64_PLTGOT16_LO_DS:
6077 char *where = fixP->fx_frag->fr_literal + fixP->fx_where;
6078 unsigned long val, mask;
6080 if (target_big_endian)
6081 val = bfd_getb32 (where - 2);
6083 val = bfd_getl32 (where);
6085 /* lq insns reserve the four lsbs. */
6086 if ((ppc_cpu & PPC_OPCODE_POWER4) != 0
6087 && (val & (0x3f << 26)) == (56u << 26))
6089 val |= value & mask;
6090 if (target_big_endian)
6091 bfd_putb16 ((bfd_vma) val, where);
6093 bfd_putl16 ((bfd_vma) val, where);
6097 case BFD_RELOC_PPC_B16_BRTAKEN:
6098 case BFD_RELOC_PPC_B16_BRNTAKEN:
6099 case BFD_RELOC_PPC_BA16_BRTAKEN:
6100 case BFD_RELOC_PPC_BA16_BRNTAKEN:
6103 case BFD_RELOC_PPC_TLS:
6104 case BFD_RELOC_PPC_TLSGD:
6105 case BFD_RELOC_PPC_TLSLD:
6108 case BFD_RELOC_PPC_DTPMOD:
6109 case BFD_RELOC_PPC_TPREL16:
6110 case BFD_RELOC_PPC_TPREL16_LO:
6111 case BFD_RELOC_PPC_TPREL16_HI:
6112 case BFD_RELOC_PPC_TPREL16_HA:
6113 case BFD_RELOC_PPC_TPREL:
6114 case BFD_RELOC_PPC_DTPREL16:
6115 case BFD_RELOC_PPC_DTPREL16_LO:
6116 case BFD_RELOC_PPC_DTPREL16_HI:
6117 case BFD_RELOC_PPC_DTPREL16_HA:
6118 case BFD_RELOC_PPC_DTPREL:
6119 case BFD_RELOC_PPC_GOT_TLSGD16:
6120 case BFD_RELOC_PPC_GOT_TLSGD16_LO:
6121 case BFD_RELOC_PPC_GOT_TLSGD16_HI:
6122 case BFD_RELOC_PPC_GOT_TLSGD16_HA:
6123 case BFD_RELOC_PPC_GOT_TLSLD16:
6124 case BFD_RELOC_PPC_GOT_TLSLD16_LO:
6125 case BFD_RELOC_PPC_GOT_TLSLD16_HI:
6126 case BFD_RELOC_PPC_GOT_TLSLD16_HA:
6127 case BFD_RELOC_PPC_GOT_TPREL16:
6128 case BFD_RELOC_PPC_GOT_TPREL16_LO:
6129 case BFD_RELOC_PPC_GOT_TPREL16_HI:
6130 case BFD_RELOC_PPC_GOT_TPREL16_HA:
6131 case BFD_RELOC_PPC_GOT_DTPREL16:
6132 case BFD_RELOC_PPC_GOT_DTPREL16_LO:
6133 case BFD_RELOC_PPC_GOT_DTPREL16_HI:
6134 case BFD_RELOC_PPC_GOT_DTPREL16_HA:
6135 case BFD_RELOC_PPC64_TPREL16_DS:
6136 case BFD_RELOC_PPC64_TPREL16_LO_DS:
6137 case BFD_RELOC_PPC64_TPREL16_HIGHER:
6138 case BFD_RELOC_PPC64_TPREL16_HIGHERA:
6139 case BFD_RELOC_PPC64_TPREL16_HIGHEST:
6140 case BFD_RELOC_PPC64_TPREL16_HIGHESTA:
6141 case BFD_RELOC_PPC64_DTPREL16_DS:
6142 case BFD_RELOC_PPC64_DTPREL16_LO_DS:
6143 case BFD_RELOC_PPC64_DTPREL16_HIGHER:
6144 case BFD_RELOC_PPC64_DTPREL16_HIGHERA:
6145 case BFD_RELOC_PPC64_DTPREL16_HIGHEST:
6146 case BFD_RELOC_PPC64_DTPREL16_HIGHESTA:
6147 S_SET_THREAD_LOCAL (fixP->fx_addsy);
6150 /* Because SDA21 modifies the register field, the size is set to 4
6151 bytes, rather than 2, so offset it here appropriately. */
6152 case BFD_RELOC_PPC_EMB_SDA21:
6156 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where
6157 + ((target_big_endian) ? 2 : 0),
6164 /* This can occur if there is a bug in the input assembler, eg:
6165 ".byte <undefined_symbol> - ." */
6167 as_bad (_("Unable to handle reference to symbol %s"),
6168 S_GET_NAME (fixP->fx_addsy));
6170 as_bad (_("Unable to resolve expression"));
6174 md_number_to_chars (fixP->fx_frag->fr_literal + fixP->fx_where,
6178 case BFD_RELOC_24_PLT_PCREL:
6179 case BFD_RELOC_PPC_LOCAL24PC:
6180 if (!fixP->fx_pcrel && !fixP->fx_done)
6188 /* Fetch the instruction, insert the fully resolved operand
6189 value, and stuff the instruction back again. */
6190 where = fixP->fx_frag->fr_literal + fixP->fx_where;
6191 if (target_big_endian)
6192 insn = bfd_getb32 ((unsigned char *) where);
6194 insn = bfd_getl32 ((unsigned char *) where);
6195 if ((value & 3) != 0)
6196 as_bad_where (fixP->fx_file, fixP->fx_line,
6197 _("must branch to an address a multiple of 4"));
6198 if ((offsetT) value < -0x40000000
6199 || (offsetT) value >= 0x40000000)
6200 as_bad_where (fixP->fx_file, fixP->fx_line,
6201 _("@local or @plt branch destination is too far away, %ld bytes"),
6203 insn = insn | (value & 0x03fffffc);
6204 if (target_big_endian)
6205 bfd_putb32 ((bfd_vma) insn, (unsigned char *) where);
6207 bfd_putl32 ((bfd_vma) insn, (unsigned char *) where);
6211 case BFD_RELOC_VTABLE_INHERIT:
6214 && !S_IS_DEFINED (fixP->fx_addsy)
6215 && !S_IS_WEAK (fixP->fx_addsy))
6216 S_SET_WEAK (fixP->fx_addsy);
6219 case BFD_RELOC_VTABLE_ENTRY:
6224 /* Generated by reference to `sym@tocbase'. The sym is
6225 ignored by the linker. */
6226 case BFD_RELOC_PPC64_TOC:
6232 _("Gas failure, reloc value %d\n"), fixP->fx_r_type);
6239 fixP->fx_addnumber = value;
6241 /* PowerPC uses RELA relocs, ie. the reloc addend is stored separately
6242 from the section contents. If we are going to be emitting a reloc
6243 then the section contents are immaterial, so don't warn if they
6244 happen to overflow. Leave such warnings to ld. */
6246 fixP->fx_no_overflow = 1;
6248 if (fixP->fx_r_type != BFD_RELOC_PPC_TOC16)
6249 fixP->fx_addnumber = 0;
6253 fixP->fx_addnumber = 0;
6255 /* We want to use the offset within the toc, not the actual VMA
6257 fixP->fx_addnumber =
6258 - bfd_get_section_vma (stdoutput, S_GET_SEGMENT (fixP->fx_addsy))
6259 - S_GET_VALUE (ppc_toc_csect);
6265 /* Generate a reloc for a fixup. */
6268 tc_gen_reloc (asection *seg ATTRIBUTE_UNUSED, fixS *fixp)
6272 reloc = (arelent *) xmalloc (sizeof (arelent));
6274 reloc->sym_ptr_ptr = (asymbol **) xmalloc (sizeof (asymbol *));
6275 *reloc->sym_ptr_ptr = symbol_get_bfdsym (fixp->fx_addsy);
6276 reloc->address = fixp->fx_frag->fr_address + fixp->fx_where;
6277 reloc->howto = bfd_reloc_type_lookup (stdoutput, fixp->fx_r_type);
6278 if (reloc->howto == (reloc_howto_type *) NULL)
6280 as_bad_where (fixp->fx_file, fixp->fx_line,
6281 _("reloc %d not supported by object file format"),
6282 (int) fixp->fx_r_type);
6285 reloc->addend = fixp->fx_addnumber;
6291 ppc_cfi_frame_initial_instructions (void)
6293 cfi_add_CFA_def_cfa (1, 0);
6297 tc_ppc_regname_to_dw2regnum (char *regname)
6299 unsigned int regnum = -1;
6303 static struct { char *name; int dw2regnum; } regnames[] =
6305 { "sp", 1 }, { "r.sp", 1 }, { "rtoc", 2 }, { "r.toc", 2 },
6306 { "mq", 64 }, { "lr", 65 }, { "ctr", 66 }, { "ap", 67 },
6307 { "cr", 70 }, { "xer", 76 }, { "vrsave", 109 }, { "vscr", 110 },
6308 { "spe_acc", 111 }, { "spefscr", 112 }
6311 for (i = 0; i < ARRAY_SIZE (regnames); ++i)
6312 if (strcmp (regnames[i].name, regname) == 0)
6313 return regnames[i].dw2regnum;
6315 if (regname[0] == 'r' || regname[0] == 'f' || regname[0] == 'v')
6317 p = regname + 1 + (regname[1] == '.');
6318 regnum = strtoul (p, &q, 10);
6319 if (p == q || *q || regnum >= 32)
6321 if (regname[0] == 'f')
6323 else if (regname[0] == 'v')
6326 else if (regname[0] == 'c' && regname[1] == 'r')
6328 p = regname + 2 + (regname[2] == '.');
6329 if (p[0] < '0' || p[0] > '7' || p[1])
6331 regnum = p[0] - '0' + 68;