obj-coff.h revision 1.1.1.1
1/* coff object file format 2 Copyright 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 3 1999, 2000, 2001, 2002, 2003, 2004, 2005 4 Free Software Foundation, Inc. 5 6 This file is part of GAS. 7 8 GAS is free software; you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation; either version 2, or (at your option) 11 any later version. 12 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. 17 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 21 02110-1301, USA. */ 22 23#ifndef OBJ_FORMAT_H 24#define OBJ_FORMAT_H 25 26#define OBJ_COFF 1 27 28#include "targ-cpu.h" 29 30#include "bfd.h" 31 32/* This internal_lineno crap is to stop namespace pollution from the 33 bfd internal coff headerfile. */ 34#define internal_lineno bfd_internal_lineno 35#include "coff/internal.h" 36#undef internal_lineno 37 38/* CPU-specific setup: */ 39 40#ifdef TC_ARM 41#include "coff/arm.h" 42#ifndef TARGET_FORMAT 43#define TARGET_FORMAT "coff-arm" 44#endif 45#endif 46 47#ifdef TC_PPC 48#ifdef TE_PE 49#include "coff/powerpc.h" 50#else 51#include "coff/rs6000.h" 52#endif 53#endif 54 55#ifdef TC_SPARC 56#include "coff/sparc.h" 57#endif 58 59#ifdef TC_I386 60#include "coff/i386.h" 61 62#ifdef TE_PE 63#define TARGET_FORMAT "pe-i386" 64#endif 65 66#ifndef TARGET_FORMAT 67#define TARGET_FORMAT "coff-i386" 68#endif 69#endif 70 71#ifdef TC_M68K 72#include "coff/m68k.h" 73#ifndef TARGET_FORMAT 74#define TARGET_FORMAT "coff-m68k" 75#endif 76#endif 77 78#ifdef TC_OR32 79#include "coff/or32.h" 80#define TARGET_FORMAT "coff-or32-big" 81#endif 82 83#ifdef TC_I960 84#include "coff/i960.h" 85#define TARGET_FORMAT "coff-Intel-little" 86#endif 87 88#ifdef TC_Z80 89#include "coff/z80.h" 90#define TARGET_FORMAT "coff-z80" 91#endif 92 93#ifdef TC_Z8K 94#include "coff/z8k.h" 95#define TARGET_FORMAT "coff-z8k" 96#endif 97 98#ifdef TC_H8300 99#include "coff/h8300.h" 100#define TARGET_FORMAT "coff-h8300" 101#endif 102 103#ifdef TC_H8500 104#include "coff/h8500.h" 105#define TARGET_FORMAT "coff-h8500" 106#endif 107 108#ifdef TC_MAXQ20 109#include "coff/maxq.h" 110#define TARGET_FORMAT "coff-maxq" 111#endif 112 113#ifdef TC_SH 114 115#ifdef TE_PE 116#define COFF_WITH_PE 117#endif 118 119#include "coff/sh.h" 120 121#ifdef TE_PE 122#define TARGET_FORMAT "pe-shl" 123#else 124 125#define TARGET_FORMAT \ 126 (!target_big_endian \ 127 ? (sh_small ? "coff-shl-small" : "coff-shl") \ 128 : (sh_small ? "coff-sh-small" : "coff-sh")) 129 130#endif 131#endif 132 133#ifdef TC_MIPS 134#define COFF_WITH_PE 135#include "coff/mipspe.h" 136#undef TARGET_FORMAT 137#define TARGET_FORMAT "pe-mips" 138#endif 139 140#ifdef TC_TIC30 141#include "coff/tic30.h" 142#define TARGET_FORMAT "coff-tic30" 143#endif 144 145#ifdef TC_TIC4X 146#include "coff/tic4x.h" 147#define TARGET_FORMAT "coff2-tic4x" 148#endif 149 150#ifdef TC_TIC54X 151#include "coff/tic54x.h" 152#define TARGET_FORMAT "coff1-c54x" 153#endif 154 155#ifdef TC_MCORE 156#include "coff/mcore.h" 157#ifndef TARGET_FORMAT 158#define TARGET_FORMAT "pe-mcore" 159#endif 160#endif 161 162#ifdef TE_PE 163/* PE weak symbols need USE_UNIQUE. */ 164#define USE_UNIQUE 1 165 166#define obj_set_weak_hook pecoff_obj_set_weak_hook 167#define obj_clear_weak_hook pecoff_obj_clear_weak_hook 168#endif 169 170#ifndef OBJ_COFF_MAX_AUXENTRIES 171#define OBJ_COFF_MAX_AUXENTRIES 1 172#endif 173 174#define obj_symbol_new_hook coff_obj_symbol_new_hook 175#define obj_symbol_clone_hook coff_obj_symbol_clone_hook 176#define obj_read_begin_hook coff_obj_read_begin_hook 177 178#include "bfd/libcoff.h" 179 180#define OUTPUT_FLAVOR bfd_target_coff_flavour 181 182/* Alter the field names, for now, until we've fixed up the other 183 references to use the new name. */ 184#ifdef TC_I960 185#define TC_SYMFIELD_TYPE symbolS * 186#define sy_tc bal 187#endif 188 189#define OBJ_SYMFIELD_TYPE unsigned long 190#define sy_obj sy_flags 191 192/* We can't use the predefined section symbols in bfd/section.c, as 193 COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */ 194#ifndef obj_sec_sym_ok_for_reloc 195#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) 196#endif 197 198#define SYM_AUXENT(S) \ 199 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent) 200#define SYM_AUXINFO(S) \ 201 (&coffsymbol (symbol_get_bfdsym (S))->native[1]) 202 203/* The number of auxiliary entries. */ 204#define S_GET_NUMBER_AUXILIARY(s) \ 205 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux) 206/* The number of auxiliary entries. */ 207#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v)) 208 209/* True if a symbol name is in the string table, i.e. its length is > 8. */ 210#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0) 211 212/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */ 213/* Omit the tv related fields. */ 214/* Accessors. */ 215 216#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l) 217#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno) 218#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size) 219#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize) 220#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr) 221#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx) 222#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]) 223#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname) 224#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen) 225#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc) 226#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno) 227 228#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v)) 229#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v)) 230#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v)) 231#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v)) 232#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v)) 233#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN) 234#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v)) 235#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v)) 236#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v)) 237 238/* Internal use only definitions. SF_ stands for symbol flags. 239 240 These values can be assigned to sy_symbol.ost_flags field of a symbolS. 241 242 You'll break i960 if you shift the SYSPROC bits anywhere else. for 243 more on the balname/callname hack, see tc-i960.h. b.out is done 244 differently. */ 245 246#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */ 247#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */ 248#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */ 249#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */ 250#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */ 251 252#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */ 253 254#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */ 255#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */ 256#define SF_STRING 0x00004000 /* Symbol name length > 8. */ 257#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */ 258 259#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */ 260 261#define SF_FUNCTION 0x00010000 /* The symbol is a function. */ 262#define SF_PROCESS 0x00020000 /* Process symbol before write. */ 263#define SF_TAGGED 0x00040000 /* Is associated with a tag. */ 264#define SF_TAG 0x00080000 /* Is a tag. */ 265#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */ 266#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */ 267/* All other bits are unused. */ 268 269/* Accessors. */ 270#define SF_GET(s) (* symbol_get_obj (s)) 271#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING) 272#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING) 273#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK) 274#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK) 275#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE) 276#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS) 277#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED) 278#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING) 279#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL) 280#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION) 281#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS) 282#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED) 283#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG) 284#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT) 285#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */ 286#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */ 287#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */ 288#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */ 289#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */ 290 291/* Modifiers. */ 292#define SF_SET(s,v) (SF_GET (s) = (v)) 293#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK)) 294#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK)) 295#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE) 296#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS) 297#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED) 298#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING) 299#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL) 300#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL) 301#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION) 302#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS) 303#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED) 304#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG) 305#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT) 306#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */ 307#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */ 308#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */ 309#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */ 310#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */ 311 312 313/* Line number handling. */ 314extern int text_lineno_number; 315extern int coff_line_base; 316extern int coff_n_line_nos; 317extern symbolS *coff_last_function; 318 319#define obj_emit_lineno(WHERE, LINE, FILE_START) abort () 320#define obj_app_file(name, app) c_dot_file_symbol (name, app) 321#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P) 322#define obj_frob_section(S) coff_frob_section (S) 323#define obj_frob_file_after_relocs() coff_frob_file_after_relocs () 324#ifndef obj_adjust_symtab 325#define obj_adjust_symtab() coff_adjust_symtab () 326#endif 327 328/* Forward the segment of a forwarded symbol, handle assignments that 329 just copy symbol values, etc. */ 330#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES 331#ifndef TE_I386AIX 332#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ 333 (SF_GET_GET_SEGMENT (dest) \ 334 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ 335 : 0) 336#else 337#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ 338 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \ 339 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ 340 : 0) 341#endif 342#endif 343 344/* Sanity check. */ 345 346#ifdef TC_I960 347#ifndef C_LEAFSTAT 348hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it. 349#endif /* no C_LEAFSTAT */ 350#endif /* TC_I960 */ 351 352extern const pseudo_typeS coff_pseudo_table[]; 353 354#ifndef obj_pop_insert 355#define obj_pop_insert() pop_insert (coff_pseudo_table) 356#endif 357 358/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK 359 to redefine the symbol later on. This can happen if C symbols use 360 a prefix, and a symbol is defined both with and without the prefix, 361 as in start/_start/__start in gcc/libgcc1-test.c. */ 362#define RESOLVE_SYMBOL_REDEFINITION(sym) \ 363(SF_GET_GET_SEGMENT (sym) \ 364 ? (sym->sy_frag = frag_now, \ 365 S_SET_VALUE (sym, frag_now_fix ()), \ 366 S_SET_SEGMENT (sym, now_seg), \ 367 0) \ 368 : 0) 369 370/* Stabs in a coff file go into their own section. */ 371#define SEPARATE_STAB_SECTIONS 1 372 373/* We need 12 bytes at the start of the section to hold some initial 374 information. */ 375#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg) 376 377/* Store the number of relocations in the section aux entry. */ 378#define SET_SECTION_RELOCS(sec, relocs, n) \ 379 SA_SET_SCN_NRELOC (section_symbol (sec), n) 380 381#define obj_app_file(name, app) c_dot_file_symbol (name, app) 382 383extern int S_SET_DATA_TYPE (symbolS *, int); 384extern int S_SET_STORAGE_CLASS (symbolS *, int); 385extern int S_GET_STORAGE_CLASS (symbolS *); 386extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *); 387extern void coff_add_linesym (symbolS *); 388extern void c_dot_file_symbol (const char *, int); 389extern void coff_frob_symbol (symbolS *, int *); 390extern void coff_adjust_symtab (void); 391extern void coff_frob_section (segT); 392extern void coff_adjust_section_syms (bfd *, asection *, void *); 393extern void coff_frob_file_after_relocs (void); 394extern void coff_obj_symbol_new_hook (symbolS *); 395extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *); 396extern void coff_obj_read_begin_hook (void); 397#ifdef TE_PE 398extern void pecoff_obj_set_weak_hook (symbolS *); 399extern void pecoff_obj_clear_weak_hook (symbolS *); 400#endif 401extern void obj_coff_section (int); 402extern segT obj_coff_add_segment (const char *); 403extern void obj_coff_section (int); 404extern void c_dot_file_symbol (const char *, int); 405extern segT s_get_segment (symbolS *); 406#ifndef tc_coff_symbol_emit_hook 407extern void tc_coff_symbol_emit_hook (symbolS *); 408#endif 409extern void obj_coff_pe_handle_link_once (void); 410extern void obj_coff_init_stab_section (segT); 411extern void c_section_header (struct internal_scnhdr *, 412 char *, long, long, long, long, 413 long, long, long, long); 414#endif /* OBJ_FORMAT_H */ 415