1/* ECOFF support on Alpha machines.
| 1/* ECOFF support on Alpha machines.
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2 coff/ecoff.h must be included before this file. */
| 2 coff/ecoff.h must be included before this file.
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3
| 3
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| 4 Copyright 2001 Free Software Foundation, Inc. 5 6 This program is free software; you can redistribute it and/or modify 7 it under the terms of the GNU General Public License as published by 8 the Free Software Foundation; either version 2 of the License, or 9 (at your option) any later version. 10 11 This program is distributed in the hope that it will be useful, 12 but WITHOUT ANY WARRANTY; without even the implied warranty of 13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 GNU General Public License for more details. 15 16 You should have received a copy of the GNU General Public License 17 along with this program; if not, write to the Free Software 18 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ 19
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4/********************** FILE HEADER **********************/ 5 6struct external_filehdr { 7 unsigned char f_magic[2]; /* magic number */ 8 unsigned char f_nscns[2]; /* number of sections */ 9 unsigned char f_timdat[4]; /* time & date stamp */ 10 unsigned char f_symptr[8]; /* file pointer to symtab */ 11 unsigned char f_nsyms[4]; /* number of symtab entries */ 12 unsigned char f_opthdr[2]; /* sizeof(optional hdr) */ 13 unsigned char f_flags[2]; /* flags */ 14}; 15 16/* Magic numbers are defined in coff/ecoff.h. */ 17#define ALPHA_ECOFF_BADMAG(x) \ 18 ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD) 19 20/* The object type is encoded in the f_flags. */ 21#define F_ALPHA_OBJECT_TYPE_MASK 0x3000 22#define F_ALPHA_NO_SHARED 0x1000 23#define F_ALPHA_SHARABLE 0x2000 24#define F_ALPHA_CALL_SHARED 0x3000 25 26#define FILHDR struct external_filehdr 27#define FILHSZ 24 28 29/********************** AOUT "OPTIONAL HEADER" **********************/ 30 31 32typedef struct external_aouthdr 33{ 34 unsigned char magic[2]; /* type of file */ 35 unsigned char vstamp[2]; /* version stamp */ 36 unsigned char bldrev[2]; /* ?? */ 37 unsigned char padding[2]; /* pad to quadword boundary */ 38 unsigned char tsize[8]; /* text size in bytes */ 39 unsigned char dsize[8]; /* initialized data " " */ 40 unsigned char bsize[8]; /* uninitialized data " " */ 41 unsigned char entry[8]; /* entry pt. */ 42 unsigned char text_start[8]; /* base of text used for this file */ 43 unsigned char data_start[8]; /* base of data used for this file */ 44 unsigned char bss_start[8]; /* base of bss used for this file */ 45 unsigned char gprmask[4]; /* bitmask of general registers used */ 46 unsigned char fprmask[4]; /* bitmask of floating point registers used */ 47 unsigned char gp_value[8]; /* value for gp register */ 48} AOUTHDR; 49 50/* compute size of a header */ 51 52#define AOUTSZ 80 53#define AOUTHDRSZ 80 54 55/********************** SECTION HEADER **********************/ 56 57struct external_scnhdr { 58 unsigned char s_name[8]; /* section name */ 59 unsigned char s_paddr[8]; /* physical address, aliased s_nlib */ 60 unsigned char s_vaddr[8]; /* virtual address */ 61 unsigned char s_size[8]; /* section size */ 62 unsigned char s_scnptr[8]; /* file ptr to raw data for section */ 63 unsigned char s_relptr[8]; /* file ptr to relocation */ 64 unsigned char s_lnnoptr[8]; /* file ptr to line numbers */ 65 unsigned char s_nreloc[2]; /* number of relocation entries */ 66 unsigned char s_nlnno[2]; /* number of line number entries*/ 67 unsigned char s_flags[4]; /* flags */ 68}; 69 70#define SCNHDR struct external_scnhdr 71#define SCNHSZ 64 72 73/********************** RELOCATION DIRECTIVES **********************/ 74 75struct external_reloc { 76 unsigned char r_vaddr[8]; 77 unsigned char r_symndx[4]; 78 unsigned char r_bits[4]; 79}; 80 81#define RELOC struct external_reloc 82#define RELSZ 16 83 84/* Constants to unpack the r_bits field. The Alpha seems to always be 85 little endian, so I haven't bothered to define big endian variants 86 of these. */ 87 88#define RELOC_BITS0_TYPE_LITTLE 0xff 89#define RELOC_BITS0_TYPE_SH_LITTLE 0 90 91#define RELOC_BITS1_EXTERN_LITTLE 0x01 92 93#define RELOC_BITS1_OFFSET_LITTLE 0x7e 94#define RELOC_BITS1_OFFSET_SH_LITTLE 1 95 96#define RELOC_BITS1_RESERVED_LITTLE 0x80 97#define RELOC_BITS1_RESERVED_SH_LITTLE 7 98#define RELOC_BITS2_RESERVED_LITTLE 0xff 99#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1 100#define RELOC_BITS3_RESERVED_LITTLE 0x03 101#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9 102 103#define RELOC_BITS3_SIZE_LITTLE 0xfc 104#define RELOC_BITS3_SIZE_SH_LITTLE 2 105 106/* The r_type field in a reloc is one of the following values. */ 107#define ALPHA_R_IGNORE 0 108#define ALPHA_R_REFLONG 1 109#define ALPHA_R_REFQUAD 2 110#define ALPHA_R_GPREL32 3 111#define ALPHA_R_LITERAL 4 112#define ALPHA_R_LITUSE 5 113#define ALPHA_R_GPDISP 6 114#define ALPHA_R_BRADDR 7 115#define ALPHA_R_HINT 8 116#define ALPHA_R_SREL16 9 117#define ALPHA_R_SREL32 10 118#define ALPHA_R_SREL64 11 119#define ALPHA_R_OP_PUSH 12 120#define ALPHA_R_OP_STORE 13 121#define ALPHA_R_OP_PSUB 14 122#define ALPHA_R_OP_PRSHIFT 15 123#define ALPHA_R_GPVALUE 16 124#define ALPHA_R_GPRELHIGH 17 125#define ALPHA_R_GPRELLOW 18 126#define ALPHA_R_IMMED 19 127 128/* Overloaded reloc value used by Net- and OpenBSD. */ 129#define ALPHA_R_LITERALSLEAZY 17 130 131/* With ALPHA_R_LITUSE, the r_size field is one of the following values. */ 132#define ALPHA_R_LU_BASE 1 133#define ALPHA_R_LU_BYTOFF 2 134#define ALPHA_R_LU_JSR 3 135 136/* With ALPHA_R_IMMED, the r_size field is one of the following values. */ 137#define ALPHA_R_IMMED_GP_16 1 138#define ALPHA_R_IMMED_GP_HI32 2 139#define ALPHA_R_IMMED_SCN_HI32 3 140#define ALPHA_R_IMMED_BR_HI32 4 141#define ALPHA_R_IMMED_LO32 5 142 143/********************** SYMBOLIC INFORMATION **********************/ 144 145/* Written by John Gilmore. */ 146 147/* ECOFF uses COFF-like section structures, but its own symbol format. 148 This file defines the symbol format in fields whose size and alignment 149 will not vary on different host systems. */ 150 151/* File header as a set of bytes */ 152 153struct hdr_ext { 154 unsigned char h_magic[2]; 155 unsigned char h_vstamp[2]; 156 unsigned char h_ilineMax[4]; 157 unsigned char h_idnMax[4]; 158 unsigned char h_ipdMax[4]; 159 unsigned char h_isymMax[4]; 160 unsigned char h_ioptMax[4]; 161 unsigned char h_iauxMax[4]; 162 unsigned char h_issMax[4]; 163 unsigned char h_issExtMax[4]; 164 unsigned char h_ifdMax[4]; 165 unsigned char h_crfd[4]; 166 unsigned char h_iextMax[4]; 167 unsigned char h_cbLine[8]; 168 unsigned char h_cbLineOffset[8]; 169 unsigned char h_cbDnOffset[8]; 170 unsigned char h_cbPdOffset[8]; 171 unsigned char h_cbSymOffset[8]; 172 unsigned char h_cbOptOffset[8]; 173 unsigned char h_cbAuxOffset[8]; 174 unsigned char h_cbSsOffset[8]; 175 unsigned char h_cbSsExtOffset[8]; 176 unsigned char h_cbFdOffset[8]; 177 unsigned char h_cbRfdOffset[8]; 178 unsigned char h_cbExtOffset[8]; 179}; 180 181/* File descriptor external record */ 182 183struct fdr_ext { 184 unsigned char f_adr[8]; 185 unsigned char f_cbLineOffset[8]; 186 unsigned char f_cbLine[8]; 187 unsigned char f_cbSs[8]; 188 unsigned char f_rss[4]; 189 unsigned char f_issBase[4]; 190 unsigned char f_isymBase[4]; 191 unsigned char f_csym[4]; 192 unsigned char f_ilineBase[4]; 193 unsigned char f_cline[4]; 194 unsigned char f_ioptBase[4]; 195 unsigned char f_copt[4]; 196 unsigned char f_ipdFirst[4]; 197 unsigned char f_cpd[4]; 198 unsigned char f_iauxBase[4]; 199 unsigned char f_caux[4]; 200 unsigned char f_rfdBase[4]; 201 unsigned char f_crfd[4]; 202 unsigned char f_bits1[1]; 203 unsigned char f_bits2[3]; 204 unsigned char f_padding[4]; 205}; 206 207#define FDR_BITS1_LANG_BIG 0xF8 208#define FDR_BITS1_LANG_SH_BIG 3 209#define FDR_BITS1_LANG_LITTLE 0x1F 210#define FDR_BITS1_LANG_SH_LITTLE 0 211 212#define FDR_BITS1_FMERGE_BIG 0x04 213#define FDR_BITS1_FMERGE_LITTLE 0x20 214 215#define FDR_BITS1_FREADIN_BIG 0x02 216#define FDR_BITS1_FREADIN_LITTLE 0x40 217 218#define FDR_BITS1_FBIGENDIAN_BIG 0x01 219#define FDR_BITS1_FBIGENDIAN_LITTLE 0x80 220 221#define FDR_BITS2_GLEVEL_BIG 0xC0 222#define FDR_BITS2_GLEVEL_SH_BIG 6 223#define FDR_BITS2_GLEVEL_LITTLE 0x03 224#define FDR_BITS2_GLEVEL_SH_LITTLE 0 225 226/* We ignore the `reserved' field in bits2. */ 227 228/* Procedure descriptor external record */ 229 230struct pdr_ext { 231 unsigned char p_adr[8]; 232 unsigned char p_cbLineOffset[8]; 233 unsigned char p_isym[4]; 234 unsigned char p_iline[4]; 235 unsigned char p_regmask[4]; 236 unsigned char p_regoffset[4]; 237 unsigned char p_iopt[4]; 238 unsigned char p_fregmask[4]; 239 unsigned char p_fregoffset[4]; 240 unsigned char p_frameoffset[4]; 241 unsigned char p_lnLow[4]; 242 unsigned char p_lnHigh[4]; 243 unsigned char p_gp_prologue[1]; 244 unsigned char p_bits1[1]; 245 unsigned char p_bits2[1]; 246 unsigned char p_localoff[1]; 247 unsigned char p_framereg[2]; 248 unsigned char p_pcreg[2]; 249}; 250 251#define PDR_BITS1_GP_USED_BIG 0x80 252#define PDR_BITS1_REG_FRAME_BIG 0x40 253#define PDR_BITS1_PROF_BIG 0x20 254#define PDR_BITS1_RESERVED_BIG 0x1f 255#define PDR_BITS1_RESERVED_SH_LEFT_BIG 8 256#define PDR_BITS2_RESERVED_BIG 0xff 257#define PDR_BITS2_RESERVED_SH_BIG 0 258 259#define PDR_BITS1_GP_USED_LITTLE 0x01 260#define PDR_BITS1_REG_FRAME_LITTLE 0x02 261#define PDR_BITS1_PROF_LITTLE 0x04 262#define PDR_BITS1_RESERVED_LITTLE 0xf8 263#define PDR_BITS1_RESERVED_SH_LITTLE 3 264#define PDR_BITS2_RESERVED_LITTLE 0xff 265#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5 266 267/* Line numbers */ 268 269struct line_ext { 270 unsigned char l_line[4]; 271}; 272 273/* Symbol external record */ 274 275struct sym_ext { 276 unsigned char s_value[8]; 277 unsigned char s_iss[4]; 278 unsigned char s_bits1[1]; 279 unsigned char s_bits2[1]; 280 unsigned char s_bits3[1]; 281 unsigned char s_bits4[1]; 282}; 283 284#define SYM_BITS1_ST_BIG 0xFC 285#define SYM_BITS1_ST_SH_BIG 2 286#define SYM_BITS1_ST_LITTLE 0x3F 287#define SYM_BITS1_ST_SH_LITTLE 0 288 289#define SYM_BITS1_SC_BIG 0x03 290#define SYM_BITS1_SC_SH_LEFT_BIG 3 291#define SYM_BITS1_SC_LITTLE 0xC0 292#define SYM_BITS1_SC_SH_LITTLE 6 293 294#define SYM_BITS2_SC_BIG 0xE0 295#define SYM_BITS2_SC_SH_BIG 5 296#define SYM_BITS2_SC_LITTLE 0x07 297#define SYM_BITS2_SC_SH_LEFT_LITTLE 2 298 299#define SYM_BITS2_RESERVED_BIG 0x10 300#define SYM_BITS2_RESERVED_LITTLE 0x08 301 302#define SYM_BITS2_INDEX_BIG 0x0F 303#define SYM_BITS2_INDEX_SH_LEFT_BIG 16 304#define SYM_BITS2_INDEX_LITTLE 0xF0 305#define SYM_BITS2_INDEX_SH_LITTLE 4 306 307#define SYM_BITS3_INDEX_SH_LEFT_BIG 8 308#define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4 309 310#define SYM_BITS4_INDEX_SH_LEFT_BIG 0 311#define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12 312 313/* External symbol external record */ 314 315struct ext_ext { 316 struct sym_ext es_asym; 317 unsigned char es_bits1[1]; 318 unsigned char es_bits2[3]; 319 unsigned char es_ifd[4]; 320}; 321 322#define EXT_BITS1_JMPTBL_BIG 0x80 323#define EXT_BITS1_JMPTBL_LITTLE 0x01 324 325#define EXT_BITS1_COBOL_MAIN_BIG 0x40 326#define EXT_BITS1_COBOL_MAIN_LITTLE 0x02 327 328#define EXT_BITS1_WEAKEXT_BIG 0x20 329#define EXT_BITS1_WEAKEXT_LITTLE 0x04 330 331/* Dense numbers external record */ 332 333struct dnr_ext { 334 unsigned char d_rfd[4]; 335 unsigned char d_index[4]; 336}; 337 338/* Relative file descriptor */ 339 340struct rfd_ext { 341 unsigned char rfd[4]; 342}; 343 344/* Optimizer symbol external record */ 345 346struct opt_ext { 347 unsigned char o_bits1[1]; 348 unsigned char o_bits2[1]; 349 unsigned char o_bits3[1]; 350 unsigned char o_bits4[1]; 351 struct rndx_ext o_rndx; 352 unsigned char o_offset[4]; 353}; 354 355#define OPT_BITS2_VALUE_SH_LEFT_BIG 16 356#define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0 357 358#define OPT_BITS3_VALUE_SH_LEFT_BIG 8 359#define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8 360 361#define OPT_BITS4_VALUE_SH_LEFT_BIG 0 362#define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16
| 20/********************** FILE HEADER **********************/ 21 22struct external_filehdr { 23 unsigned char f_magic[2]; /* magic number */ 24 unsigned char f_nscns[2]; /* number of sections */ 25 unsigned char f_timdat[4]; /* time & date stamp */ 26 unsigned char f_symptr[8]; /* file pointer to symtab */ 27 unsigned char f_nsyms[4]; /* number of symtab entries */ 28 unsigned char f_opthdr[2]; /* sizeof(optional hdr) */ 29 unsigned char f_flags[2]; /* flags */ 30}; 31 32/* Magic numbers are defined in coff/ecoff.h. */ 33#define ALPHA_ECOFF_BADMAG(x) \ 34 ((x).f_magic != ALPHA_MAGIC && (x).f_magic != ALPHA_MAGIC_BSD) 35 36/* The object type is encoded in the f_flags. */ 37#define F_ALPHA_OBJECT_TYPE_MASK 0x3000 38#define F_ALPHA_NO_SHARED 0x1000 39#define F_ALPHA_SHARABLE 0x2000 40#define F_ALPHA_CALL_SHARED 0x3000 41 42#define FILHDR struct external_filehdr 43#define FILHSZ 24 44 45/********************** AOUT "OPTIONAL HEADER" **********************/ 46 47 48typedef struct external_aouthdr 49{ 50 unsigned char magic[2]; /* type of file */ 51 unsigned char vstamp[2]; /* version stamp */ 52 unsigned char bldrev[2]; /* ?? */ 53 unsigned char padding[2]; /* pad to quadword boundary */ 54 unsigned char tsize[8]; /* text size in bytes */ 55 unsigned char dsize[8]; /* initialized data " " */ 56 unsigned char bsize[8]; /* uninitialized data " " */ 57 unsigned char entry[8]; /* entry pt. */ 58 unsigned char text_start[8]; /* base of text used for this file */ 59 unsigned char data_start[8]; /* base of data used for this file */ 60 unsigned char bss_start[8]; /* base of bss used for this file */ 61 unsigned char gprmask[4]; /* bitmask of general registers used */ 62 unsigned char fprmask[4]; /* bitmask of floating point registers used */ 63 unsigned char gp_value[8]; /* value for gp register */ 64} AOUTHDR; 65 66/* compute size of a header */ 67 68#define AOUTSZ 80 69#define AOUTHDRSZ 80 70 71/********************** SECTION HEADER **********************/ 72 73struct external_scnhdr { 74 unsigned char s_name[8]; /* section name */ 75 unsigned char s_paddr[8]; /* physical address, aliased s_nlib */ 76 unsigned char s_vaddr[8]; /* virtual address */ 77 unsigned char s_size[8]; /* section size */ 78 unsigned char s_scnptr[8]; /* file ptr to raw data for section */ 79 unsigned char s_relptr[8]; /* file ptr to relocation */ 80 unsigned char s_lnnoptr[8]; /* file ptr to line numbers */ 81 unsigned char s_nreloc[2]; /* number of relocation entries */ 82 unsigned char s_nlnno[2]; /* number of line number entries*/ 83 unsigned char s_flags[4]; /* flags */ 84}; 85 86#define SCNHDR struct external_scnhdr 87#define SCNHSZ 64 88 89/********************** RELOCATION DIRECTIVES **********************/ 90 91struct external_reloc { 92 unsigned char r_vaddr[8]; 93 unsigned char r_symndx[4]; 94 unsigned char r_bits[4]; 95}; 96 97#define RELOC struct external_reloc 98#define RELSZ 16 99 100/* Constants to unpack the r_bits field. The Alpha seems to always be 101 little endian, so I haven't bothered to define big endian variants 102 of these. */ 103 104#define RELOC_BITS0_TYPE_LITTLE 0xff 105#define RELOC_BITS0_TYPE_SH_LITTLE 0 106 107#define RELOC_BITS1_EXTERN_LITTLE 0x01 108 109#define RELOC_BITS1_OFFSET_LITTLE 0x7e 110#define RELOC_BITS1_OFFSET_SH_LITTLE 1 111 112#define RELOC_BITS1_RESERVED_LITTLE 0x80 113#define RELOC_BITS1_RESERVED_SH_LITTLE 7 114#define RELOC_BITS2_RESERVED_LITTLE 0xff 115#define RELOC_BITS2_RESERVED_SH_LEFT_LITTLE 1 116#define RELOC_BITS3_RESERVED_LITTLE 0x03 117#define RELOC_BITS3_RESERVED_SH_LEFT_LITTLE 9 118 119#define RELOC_BITS3_SIZE_LITTLE 0xfc 120#define RELOC_BITS3_SIZE_SH_LITTLE 2 121 122/* The r_type field in a reloc is one of the following values. */ 123#define ALPHA_R_IGNORE 0 124#define ALPHA_R_REFLONG 1 125#define ALPHA_R_REFQUAD 2 126#define ALPHA_R_GPREL32 3 127#define ALPHA_R_LITERAL 4 128#define ALPHA_R_LITUSE 5 129#define ALPHA_R_GPDISP 6 130#define ALPHA_R_BRADDR 7 131#define ALPHA_R_HINT 8 132#define ALPHA_R_SREL16 9 133#define ALPHA_R_SREL32 10 134#define ALPHA_R_SREL64 11 135#define ALPHA_R_OP_PUSH 12 136#define ALPHA_R_OP_STORE 13 137#define ALPHA_R_OP_PSUB 14 138#define ALPHA_R_OP_PRSHIFT 15 139#define ALPHA_R_GPVALUE 16 140#define ALPHA_R_GPRELHIGH 17 141#define ALPHA_R_GPRELLOW 18 142#define ALPHA_R_IMMED 19 143 144/* Overloaded reloc value used by Net- and OpenBSD. */ 145#define ALPHA_R_LITERALSLEAZY 17 146 147/* With ALPHA_R_LITUSE, the r_size field is one of the following values. */ 148#define ALPHA_R_LU_BASE 1 149#define ALPHA_R_LU_BYTOFF 2 150#define ALPHA_R_LU_JSR 3 151 152/* With ALPHA_R_IMMED, the r_size field is one of the following values. */ 153#define ALPHA_R_IMMED_GP_16 1 154#define ALPHA_R_IMMED_GP_HI32 2 155#define ALPHA_R_IMMED_SCN_HI32 3 156#define ALPHA_R_IMMED_BR_HI32 4 157#define ALPHA_R_IMMED_LO32 5 158 159/********************** SYMBOLIC INFORMATION **********************/ 160 161/* Written by John Gilmore. */ 162 163/* ECOFF uses COFF-like section structures, but its own symbol format. 164 This file defines the symbol format in fields whose size and alignment 165 will not vary on different host systems. */ 166 167/* File header as a set of bytes */ 168 169struct hdr_ext { 170 unsigned char h_magic[2]; 171 unsigned char h_vstamp[2]; 172 unsigned char h_ilineMax[4]; 173 unsigned char h_idnMax[4]; 174 unsigned char h_ipdMax[4]; 175 unsigned char h_isymMax[4]; 176 unsigned char h_ioptMax[4]; 177 unsigned char h_iauxMax[4]; 178 unsigned char h_issMax[4]; 179 unsigned char h_issExtMax[4]; 180 unsigned char h_ifdMax[4]; 181 unsigned char h_crfd[4]; 182 unsigned char h_iextMax[4]; 183 unsigned char h_cbLine[8]; 184 unsigned char h_cbLineOffset[8]; 185 unsigned char h_cbDnOffset[8]; 186 unsigned char h_cbPdOffset[8]; 187 unsigned char h_cbSymOffset[8]; 188 unsigned char h_cbOptOffset[8]; 189 unsigned char h_cbAuxOffset[8]; 190 unsigned char h_cbSsOffset[8]; 191 unsigned char h_cbSsExtOffset[8]; 192 unsigned char h_cbFdOffset[8]; 193 unsigned char h_cbRfdOffset[8]; 194 unsigned char h_cbExtOffset[8]; 195}; 196 197/* File descriptor external record */ 198 199struct fdr_ext { 200 unsigned char f_adr[8]; 201 unsigned char f_cbLineOffset[8]; 202 unsigned char f_cbLine[8]; 203 unsigned char f_cbSs[8]; 204 unsigned char f_rss[4]; 205 unsigned char f_issBase[4]; 206 unsigned char f_isymBase[4]; 207 unsigned char f_csym[4]; 208 unsigned char f_ilineBase[4]; 209 unsigned char f_cline[4]; 210 unsigned char f_ioptBase[4]; 211 unsigned char f_copt[4]; 212 unsigned char f_ipdFirst[4]; 213 unsigned char f_cpd[4]; 214 unsigned char f_iauxBase[4]; 215 unsigned char f_caux[4]; 216 unsigned char f_rfdBase[4]; 217 unsigned char f_crfd[4]; 218 unsigned char f_bits1[1]; 219 unsigned char f_bits2[3]; 220 unsigned char f_padding[4]; 221}; 222 223#define FDR_BITS1_LANG_BIG 0xF8 224#define FDR_BITS1_LANG_SH_BIG 3 225#define FDR_BITS1_LANG_LITTLE 0x1F 226#define FDR_BITS1_LANG_SH_LITTLE 0 227 228#define FDR_BITS1_FMERGE_BIG 0x04 229#define FDR_BITS1_FMERGE_LITTLE 0x20 230 231#define FDR_BITS1_FREADIN_BIG 0x02 232#define FDR_BITS1_FREADIN_LITTLE 0x40 233 234#define FDR_BITS1_FBIGENDIAN_BIG 0x01 235#define FDR_BITS1_FBIGENDIAN_LITTLE 0x80 236 237#define FDR_BITS2_GLEVEL_BIG 0xC0 238#define FDR_BITS2_GLEVEL_SH_BIG 6 239#define FDR_BITS2_GLEVEL_LITTLE 0x03 240#define FDR_BITS2_GLEVEL_SH_LITTLE 0 241 242/* We ignore the `reserved' field in bits2. */ 243 244/* Procedure descriptor external record */ 245 246struct pdr_ext { 247 unsigned char p_adr[8]; 248 unsigned char p_cbLineOffset[8]; 249 unsigned char p_isym[4]; 250 unsigned char p_iline[4]; 251 unsigned char p_regmask[4]; 252 unsigned char p_regoffset[4]; 253 unsigned char p_iopt[4]; 254 unsigned char p_fregmask[4]; 255 unsigned char p_fregoffset[4]; 256 unsigned char p_frameoffset[4]; 257 unsigned char p_lnLow[4]; 258 unsigned char p_lnHigh[4]; 259 unsigned char p_gp_prologue[1]; 260 unsigned char p_bits1[1]; 261 unsigned char p_bits2[1]; 262 unsigned char p_localoff[1]; 263 unsigned char p_framereg[2]; 264 unsigned char p_pcreg[2]; 265}; 266 267#define PDR_BITS1_GP_USED_BIG 0x80 268#define PDR_BITS1_REG_FRAME_BIG 0x40 269#define PDR_BITS1_PROF_BIG 0x20 270#define PDR_BITS1_RESERVED_BIG 0x1f 271#define PDR_BITS1_RESERVED_SH_LEFT_BIG 8 272#define PDR_BITS2_RESERVED_BIG 0xff 273#define PDR_BITS2_RESERVED_SH_BIG 0 274 275#define PDR_BITS1_GP_USED_LITTLE 0x01 276#define PDR_BITS1_REG_FRAME_LITTLE 0x02 277#define PDR_BITS1_PROF_LITTLE 0x04 278#define PDR_BITS1_RESERVED_LITTLE 0xf8 279#define PDR_BITS1_RESERVED_SH_LITTLE 3 280#define PDR_BITS2_RESERVED_LITTLE 0xff 281#define PDR_BITS2_RESERVED_SH_LEFT_LITTLE 5 282 283/* Line numbers */ 284 285struct line_ext { 286 unsigned char l_line[4]; 287}; 288 289/* Symbol external record */ 290 291struct sym_ext { 292 unsigned char s_value[8]; 293 unsigned char s_iss[4]; 294 unsigned char s_bits1[1]; 295 unsigned char s_bits2[1]; 296 unsigned char s_bits3[1]; 297 unsigned char s_bits4[1]; 298}; 299 300#define SYM_BITS1_ST_BIG 0xFC 301#define SYM_BITS1_ST_SH_BIG 2 302#define SYM_BITS1_ST_LITTLE 0x3F 303#define SYM_BITS1_ST_SH_LITTLE 0 304 305#define SYM_BITS1_SC_BIG 0x03 306#define SYM_BITS1_SC_SH_LEFT_BIG 3 307#define SYM_BITS1_SC_LITTLE 0xC0 308#define SYM_BITS1_SC_SH_LITTLE 6 309 310#define SYM_BITS2_SC_BIG 0xE0 311#define SYM_BITS2_SC_SH_BIG 5 312#define SYM_BITS2_SC_LITTLE 0x07 313#define SYM_BITS2_SC_SH_LEFT_LITTLE 2 314 315#define SYM_BITS2_RESERVED_BIG 0x10 316#define SYM_BITS2_RESERVED_LITTLE 0x08 317 318#define SYM_BITS2_INDEX_BIG 0x0F 319#define SYM_BITS2_INDEX_SH_LEFT_BIG 16 320#define SYM_BITS2_INDEX_LITTLE 0xF0 321#define SYM_BITS2_INDEX_SH_LITTLE 4 322 323#define SYM_BITS3_INDEX_SH_LEFT_BIG 8 324#define SYM_BITS3_INDEX_SH_LEFT_LITTLE 4 325 326#define SYM_BITS4_INDEX_SH_LEFT_BIG 0 327#define SYM_BITS4_INDEX_SH_LEFT_LITTLE 12 328 329/* External symbol external record */ 330 331struct ext_ext { 332 struct sym_ext es_asym; 333 unsigned char es_bits1[1]; 334 unsigned char es_bits2[3]; 335 unsigned char es_ifd[4]; 336}; 337 338#define EXT_BITS1_JMPTBL_BIG 0x80 339#define EXT_BITS1_JMPTBL_LITTLE 0x01 340 341#define EXT_BITS1_COBOL_MAIN_BIG 0x40 342#define EXT_BITS1_COBOL_MAIN_LITTLE 0x02 343 344#define EXT_BITS1_WEAKEXT_BIG 0x20 345#define EXT_BITS1_WEAKEXT_LITTLE 0x04 346 347/* Dense numbers external record */ 348 349struct dnr_ext { 350 unsigned char d_rfd[4]; 351 unsigned char d_index[4]; 352}; 353 354/* Relative file descriptor */ 355 356struct rfd_ext { 357 unsigned char rfd[4]; 358}; 359 360/* Optimizer symbol external record */ 361 362struct opt_ext { 363 unsigned char o_bits1[1]; 364 unsigned char o_bits2[1]; 365 unsigned char o_bits3[1]; 366 unsigned char o_bits4[1]; 367 struct rndx_ext o_rndx; 368 unsigned char o_offset[4]; 369}; 370 371#define OPT_BITS2_VALUE_SH_LEFT_BIG 16 372#define OPT_BITS2_VALUE_SH_LEFT_LITTLE 0 373 374#define OPT_BITS3_VALUE_SH_LEFT_BIG 8 375#define OPT_BITS3_VALUE_SH_LEFT_LITTLE 8 376 377#define OPT_BITS4_VALUE_SH_LEFT_BIG 0 378#define OPT_BITS4_VALUE_SH_LEFT_LITTLE 16
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