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, 2006 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/* This internal_lineno crap is to stop namespace pollution from the 31 bfd internal coff headerfile. */ 32#define internal_lineno bfd_internal_lineno 33#include "coff/internal.h" 34#undef internal_lineno 35 36/* CPU-specific setup: */ 37 38#ifdef TC_ARM 39#include "coff/arm.h" 40#ifndef TARGET_FORMAT 41#define TARGET_FORMAT "coff-arm" 42#endif 43#endif 44 45#ifdef TC_PPC 46#ifdef TE_PE 47#include "coff/powerpc.h" 48#else 49#include "coff/rs6000.h" 50#endif 51#endif 52 53#ifdef TC_SPARC 54#include "coff/sparc.h" 55#endif 56 57#ifdef TC_I386 58#ifndef TE_PEP 59#include "coff/x86_64.h" 60#else 61#include "coff/i386.h" 62#endif 63 64#ifdef TE_PE 65#ifdef TE_PEP 66extern const char * x86_64_target_format (void); 67#define TARGET_FORMAT x86_64_target_format () 68#define COFF_TARGET_FORMAT "pe-x86-64" 69#else 70#define TARGET_FORMAT "pe-i386" 71#endif 72#endif 73 74#ifndef TARGET_FORMAT 75#ifdef TE_PEP 76#define TARGET_FORMAT "coff-x86-64" 77#else 78#define TARGET_FORMAT "coff-i386" 79#endif 80#endif 81#endif 82 83#ifdef TC_M68K 84#include "coff/m68k.h" 85#ifndef TARGET_FORMAT 86#define TARGET_FORMAT "coff-m68k" 87#endif 88#endif 89 90#ifdef TC_OR32 91#include "coff/or32.h" 92#define TARGET_FORMAT "coff-or32-big" 93#endif 94 95#ifdef TC_I960 96#include "coff/i960.h" 97#define TARGET_FORMAT "coff-Intel-little" 98#endif 99 100#ifdef TC_Z80 101#include "coff/z80.h" 102#define TARGET_FORMAT "coff-z80" 103#endif 104 105#ifdef TC_Z8K 106#include "coff/z8k.h" 107#define TARGET_FORMAT "coff-z8k" 108#endif 109 110#ifdef TC_H8300 111#include "coff/h8300.h" 112#define TARGET_FORMAT "coff-h8300" 113#endif 114 115#ifdef TC_H8500 116#include "coff/h8500.h" 117#define TARGET_FORMAT "coff-h8500" 118#endif 119 120#ifdef TC_MAXQ20 121#include "coff/maxq.h" 122#define TARGET_FORMAT "coff-maxq" 123#endif 124 125#ifdef TC_SH 126 127#ifdef TE_PE 128#define COFF_WITH_PE 129#endif 130 131#include "coff/sh.h" 132 133#ifdef TE_PE 134#define TARGET_FORMAT "pe-shl" 135#else 136 137#define TARGET_FORMAT \ 138 (!target_big_endian \ 139 ? (sh_small ? "coff-shl-small" : "coff-shl") \ 140 : (sh_small ? "coff-sh-small" : "coff-sh")) 141 142#endif 143#endif 144 145#ifdef TC_MIPS 146#define COFF_WITH_PE 147#include "coff/mipspe.h" 148#undef TARGET_FORMAT 149#define TARGET_FORMAT "pe-mips" 150#endif 151 152#ifdef TC_TIC30 153#include "coff/tic30.h" 154#define TARGET_FORMAT "coff-tic30" 155#endif 156 157#ifdef TC_TIC4X 158#include "coff/tic4x.h" 159#define TARGET_FORMAT "coff2-tic4x" 160#endif 161 162#ifdef TC_TIC54X 163#include "coff/tic54x.h" 164#define TARGET_FORMAT "coff1-c54x" 165#endif 166 167#ifdef TC_MCORE 168#include "coff/mcore.h" 169#ifndef TARGET_FORMAT 170#define TARGET_FORMAT "pe-mcore" 171#endif 172#endif 173 174#ifdef TE_PE 175/* PE weak symbols need USE_UNIQUE. */ 176#define USE_UNIQUE 1 177 178#define obj_set_weak_hook pecoff_obj_set_weak_hook 179#define obj_clear_weak_hook pecoff_obj_clear_weak_hook 180#endif 181 182#ifndef OBJ_COFF_MAX_AUXENTRIES 183#define OBJ_COFF_MAX_AUXENTRIES 1 184#endif 185 186#define obj_symbol_new_hook coff_obj_symbol_new_hook 187#define obj_symbol_clone_hook coff_obj_symbol_clone_hook 188#define obj_read_begin_hook coff_obj_read_begin_hook 189 190#include "bfd/libcoff.h" 191 192#define OUTPUT_FLAVOR bfd_target_coff_flavour 193 194/* Alter the field names, for now, until we've fixed up the other 195 references to use the new name. */ 196#ifdef TC_I960 197#define TC_SYMFIELD_TYPE symbolS * 198#define sy_tc bal 199#endif 200 201#define OBJ_SYMFIELD_TYPE unsigned long 202#define sy_obj sy_flags 203 204/* We can't use the predefined section symbols in bfd/section.c, as 205 COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */ 206#ifndef obj_sec_sym_ok_for_reloc 207#define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) 208#endif 209 210#define SYM_AUXENT(S) \ 211 (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent) 212#define SYM_AUXINFO(S) \ 213 (&coffsymbol (symbol_get_bfdsym (S))->native[1]) 214 215/* The number of auxiliary entries. */ 216#define S_GET_NUMBER_AUXILIARY(s) \ 217 (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux) 218/* The number of auxiliary entries. */ 219#define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v)) 220 221/* True if a symbol name is in the string table, i.e. its length is > 8. */ 222#define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0) 223 224/* Auxiliary entry macros. SA_ stands for symbol auxiliary. */ 225/* Omit the tv related fields. */ 226/* Accessors. */ 227 228#define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.l) 229#define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno) 230#define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size) 231#define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize) 232#define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr) 233#define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx) 234#define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]) 235#define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname) 236#define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen) 237#define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc) 238#define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno) 239 240#define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v)) 241#define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v)) 242#define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v)) 243#define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v)) 244#define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v)) 245#define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN) 246#define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v)) 247#define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v)) 248#define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v)) 249 250/* Internal use only definitions. SF_ stands for symbol flags. 251 252 These values can be assigned to sy_symbol.ost_flags field of a symbolS. 253 254 You'll break i960 if you shift the SYSPROC bits anywhere else. for 255 more on the balname/callname hack, see tc-i960.h. b.out is done 256 differently. */ 257 258#define SF_I960_MASK 0x000001ff /* Bits 0-8 are used by the i960 port. */ 259#define SF_SYSPROC 0x0000003f /* bits 0-5 are used to store the sysproc number. */ 260#define SF_IS_SYSPROC 0x00000040 /* bit 6 marks symbols that are sysprocs. */ 261#define SF_BALNAME 0x00000080 /* bit 7 marks BALNAME symbols. */ 262#define SF_CALLNAME 0x00000100 /* bit 8 marks CALLNAME symbols. */ 263 264#define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */ 265 266#define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */ 267#define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */ 268#define SF_STRING 0x00004000 /* Symbol name length > 8. */ 269#define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */ 270 271#define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */ 272 273#define SF_FUNCTION 0x00010000 /* The symbol is a function. */ 274#define SF_PROCESS 0x00020000 /* Process symbol before write. */ 275#define SF_TAGGED 0x00040000 /* Is associated with a tag. */ 276#define SF_TAG 0x00080000 /* Is a tag. */ 277#define SF_DEBUG 0x00100000 /* Is in debug or abs section. */ 278#define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */ 279/* All other bits are unused. */ 280 281/* Accessors. */ 282#define SF_GET(s) (* symbol_get_obj (s)) 283#define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING) 284#define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING) 285#define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK) 286#define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK) 287#define SF_GET_FILE(s) (SF_GET (s) & SF_FILE) 288#define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS) 289#define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED) 290#define SF_GET_STRING(s) (SF_GET (s) & SF_STRING) 291#define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL) 292#define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION) 293#define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS) 294#define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED) 295#define SF_GET_TAG(s) (SF_GET (s) & SF_TAG) 296#define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT) 297#define SF_GET_I960(s) (SF_GET (s) & SF_I960_MASK) /* Used by i960. */ 298#define SF_GET_BALNAME(s) (SF_GET (s) & SF_BALNAME) /* Used by i960. */ 299#define SF_GET_CALLNAME(s) (SF_GET (s) & SF_CALLNAME) /* Used by i960. */ 300#define SF_GET_IS_SYSPROC(s) (SF_GET (s) & SF_IS_SYSPROC) /* Used by i960. */ 301#define SF_GET_SYSPROC(s) (SF_GET (s) & SF_SYSPROC) /* Used by i960. */ 302 303/* Modifiers. */ 304#define SF_SET(s,v) (SF_GET (s) = (v)) 305#define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK)) 306#define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK)) 307#define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE) 308#define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS) 309#define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED) 310#define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING) 311#define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL) 312#define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL) 313#define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION) 314#define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS) 315#define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED) 316#define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG) 317#define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT) 318#define SF_SET_I960(s,v) (SF_GET (s) |= ((v) & SF_I960_MASK)) /* Used by i960. */ 319#define SF_SET_BALNAME(s) (SF_GET (s) |= SF_BALNAME) /* Used by i960. */ 320#define SF_SET_CALLNAME(s) (SF_GET (s) |= SF_CALLNAME) /* Used by i960. */ 321#define SF_SET_IS_SYSPROC(s) (SF_GET (s) |= SF_IS_SYSPROC) /* Used by i960. */ 322#define SF_SET_SYSPROC(s,v) (SF_GET (s) |= ((v) & SF_SYSPROC)) /* Used by i960. */ 323 324 325/* Line number handling. */ 326extern int text_lineno_number; 327extern int coff_line_base; 328extern int coff_n_line_nos; 329extern symbolS *coff_last_function; 330 331#define obj_emit_lineno(WHERE, LINE, FILE_START) abort () 332#define obj_app_file(name, app) c_dot_file_symbol (name, app) 333#define obj_frob_symbol(S,P) coff_frob_symbol (S, & P) 334#define obj_frob_section(S) coff_frob_section (S) 335#define obj_frob_file_after_relocs() coff_frob_file_after_relocs () 336#ifndef obj_adjust_symtab 337#define obj_adjust_symtab() coff_adjust_symtab () 338#endif 339 340/* Forward the segment of a forwarded symbol, handle assignments that 341 just copy symbol values, etc. */ 342#ifndef OBJ_COPY_SYMBOL_ATTRIBUTES 343#ifndef TE_I386AIX 344#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ 345 (SF_GET_GET_SEGMENT (dest) \ 346 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ 347 : 0) 348#else 349#define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ 350 (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \ 351 ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ 352 : 0) 353#endif 354#endif 355 356/* Sanity check. */ 357 358#ifdef TC_I960 359#ifndef C_LEAFSTAT 360hey ! Where is the C_LEAFSTAT definition ? i960 - coff support is depending on it. 361#endif /* no C_LEAFSTAT */ 362#endif /* TC_I960 */ 363 364extern const pseudo_typeS coff_pseudo_table[]; 365 366#ifndef obj_pop_insert 367#define obj_pop_insert() pop_insert (coff_pseudo_table) 368#endif 369 370/* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK 371 to redefine the symbol later on. This can happen if C symbols use 372 a prefix, and a symbol is defined both with and without the prefix, 373 as in start/_start/__start in gcc/libgcc1-test.c. */ 374#define RESOLVE_SYMBOL_REDEFINITION(sym) \ 375(SF_GET_GET_SEGMENT (sym) \ 376 ? (sym->sy_frag = frag_now, \ 377 S_SET_VALUE (sym, frag_now_fix ()), \ 378 S_SET_SEGMENT (sym, now_seg), \ 379 0) \ 380 : 0) 381 382/* Stabs in a coff file go into their own section. */ 383#define SEPARATE_STAB_SECTIONS 1 384 385/* We need 12 bytes at the start of the section to hold some initial 386 information. */ 387#define INIT_STAB_SECTION(seg) obj_coff_init_stab_section (seg) 388 389/* Store the number of relocations in the section aux entry. */ 390#define SET_SECTION_RELOCS(sec, relocs, n) \ 391 SA_SET_SCN_NRELOC (section_symbol (sec), n) 392 393#define obj_app_file(name, app) c_dot_file_symbol (name, app) 394 395extern int S_SET_DATA_TYPE (symbolS *, int); 396extern int S_SET_STORAGE_CLASS (symbolS *, int); 397extern int S_GET_STORAGE_CLASS (symbolS *); 398extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *); 399extern void coff_add_linesym (symbolS *); 400extern void c_dot_file_symbol (const char *, int); 401extern void coff_frob_symbol (symbolS *, int *); 402extern void coff_adjust_symtab (void); 403extern void coff_frob_section (segT); 404extern void coff_adjust_section_syms (bfd *, asection *, void *); 405extern void coff_frob_file_after_relocs (void); 406extern void coff_obj_symbol_new_hook (symbolS *); 407extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *); 408extern void coff_obj_read_begin_hook (void); 409#ifdef TE_PE 410extern void pecoff_obj_set_weak_hook (symbolS *); 411extern void pecoff_obj_clear_weak_hook (symbolS *); 412#endif 413extern void obj_coff_section (int); 414extern segT obj_coff_add_segment (const char *); 415extern void obj_coff_section (int); 416extern void c_dot_file_symbol (const char *, int); 417extern segT s_get_segment (symbolS *); 418#ifndef tc_coff_symbol_emit_hook 419extern void tc_coff_symbol_emit_hook (symbolS *); 420#endif 421extern void obj_coff_pe_handle_link_once (void); 422extern void obj_coff_init_stab_section (segT); 423extern void c_section_header (struct internal_scnhdr *, 424 char *, long, long, long, long, 425 long, long, long, long); 426#endif /* OBJ_FORMAT_H */ 427