/* coff object file format Copyright (C) 1989-2024 Free Software Foundation, Inc. This file is part of GAS. GAS is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3, or (at your option) any later version. GAS is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GAS; see the file COPYING. If not, write to the Free Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. */ #ifndef OBJ_FORMAT_H #define OBJ_FORMAT_H #define OBJ_COFF 1 #include "targ-cpu.h" /* This internal_lineno crap is to stop namespace pollution from the bfd internal coff headerfile. */ #define internal_lineno bfd_internal_lineno #include "coff/internal.h" #undef internal_lineno /* CPU-specific setup: */ #ifdef TC_ARM #include "coff/arm.h" #ifndef TARGET_FORMAT #define TARGET_FORMAT "coff-arm" #endif #endif #ifdef TC_AARCH64 #include "coff/aarch64.h" #endif #ifdef TC_PPC #include "coff/rs6000.h" #endif #ifdef TC_I386 #include "coff/x86.h" #ifndef TARGET_FORMAT #ifdef TE_PEP #define TARGET_FORMAT "coff-x86-64" #else #define TARGET_FORMAT "coff-i386" #endif #endif #endif #ifdef TC_Z80 #include "coff/z80.h" #define TARGET_FORMAT "coff-z80" #endif #ifdef TC_Z8K #include "coff/z8k.h" #define TARGET_FORMAT "coff-z8k" #endif #ifdef TC_SH #ifdef TE_PE #define COFF_WITH_PE #endif #include "coff/sh.h" #ifdef TE_PE #define TARGET_FORMAT "pe-shl" #else #define TARGET_FORMAT \ (!target_big_endian \ ? (sh_small ? "coff-shl-small" : "coff-shl") \ : (sh_small ? "coff-sh-small" : "coff-sh")) #endif #endif #ifdef TC_TIC30 #include "coff/tic30.h" #define TARGET_FORMAT "coff-tic30" #endif #ifdef TC_TIC4X #include "coff/tic4x.h" #define TARGET_FORMAT "coff2-tic4x" #endif #ifdef TC_TIC54X #include "coff/tic54x.h" #define TARGET_FORMAT "coff1-c54x" #endif #ifdef TC_MCORE #include "coff/mcore.h" #ifndef TARGET_FORMAT #define TARGET_FORMAT "pe-mcore" #endif #endif #ifdef TE_PE #define obj_set_weak_hook pecoff_obj_set_weak_hook #define obj_clear_weak_hook pecoff_obj_clear_weak_hook #endif #ifndef OBJ_COFF_MAX_AUXENTRIES #define OBJ_COFF_MAX_AUXENTRIES 1 #endif #define obj_symbol_new_hook coff_obj_symbol_new_hook #define obj_symbol_clone_hook coff_obj_symbol_clone_hook #define obj_read_begin_hook coff_obj_read_begin_hook #include "bfd/libcoff.h" #define OUTPUT_FLAVOR bfd_target_coff_flavour /* COFF symbol flags. See SF_* macros. */ #define OBJ_SYMFIELD_TYPE unsigned long /* We can't use the predefined section symbols in bfd/section.c, as COFF symbols have extra fields. See bfd/libcoff.h:coff_symbol_type. */ #ifndef obj_sec_sym_ok_for_reloc #define obj_sec_sym_ok_for_reloc(SEC) ((SEC)->owner != 0) #endif #define SYM_AUXENT(S) \ (&coffsymbol (symbol_get_bfdsym (S))->native[1].u.auxent) #define SYM_AUXINFO(S) \ (&coffsymbol (symbol_get_bfdsym (S))->native[1]) /* The number of auxiliary entries. */ #define S_GET_NUMBER_AUXILIARY(s) \ (coffsymbol (symbol_get_bfdsym (s))->native->u.syment.n_numaux) /* The number of auxiliary entries. */ #define S_SET_NUMBER_AUXILIARY(s, v) (S_GET_NUMBER_AUXILIARY (s) = (v)) /* True if a symbol name is in the string table, i.e. its length is > 8. */ #define S_IS_STRING(s) (strlen (S_GET_NAME (s)) > 8 ? 1 : 0) /* Auxiliary entry macros. SA_ stands for symbol auxiliary. */ /* Omit the tv related fields. */ /* Accessors. */ #define SA_GET_SYM_TAGNDX(s) (SYM_AUXENT (s)->x_sym.x_tagndx.u32) #define SA_GET_SYM_LNNO(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno) #define SA_GET_SYM_SIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size) #define SA_GET_SYM_FSIZE(s) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize) #define SA_GET_SYM_LNNOPTR(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr) #define SA_GET_SYM_ENDNDX(s) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_endndx) #define SA_GET_SYM_DIMEN(s,i) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)]) #define SA_GET_FILE_FNAME(s) (SYM_AUXENT (s)->x_file.x_fname) #define SA_GET_SCN_SCNLEN(s) (SYM_AUXENT (s)->x_scn.x_scnlen) #define SA_GET_SCN_NRELOC(s) (SYM_AUXENT (s)->x_scn.x_nreloc) #define SA_GET_SCN_NLINNO(s) (SYM_AUXENT (s)->x_scn.x_nlinno) #define SA_SET_SYM_LNNO(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_lnno = (v)) #define SA_SET_SYM_SIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_lnsz.x_size = (v)) #define SA_SET_SYM_FSIZE(s,v) (SYM_AUXENT (s)->x_sym.x_misc.x_fsize = (v)) #define SA_SET_SYM_LNNOPTR(s,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_fcn.x_lnnoptr = (v)) #define SA_SET_SYM_DIMEN(s,i,v) (SYM_AUXENT (s)->x_sym.x_fcnary.x_ary.x_dimen[(i)] = (v)) #define SA_SET_FILE_FNAME(s,v) strncpy (SYM_AUXENT (s)->x_file.x_fname, (v), FILNMLEN) #define SA_SET_SCN_SCNLEN(s,v) (SYM_AUXENT (s)->x_scn.x_scnlen = (v)) #define SA_SET_SCN_NRELOC(s,v) (SYM_AUXENT (s)->x_scn.x_nreloc = (v)) #define SA_SET_SCN_NLINNO(s,v) (SYM_AUXENT (s)->x_scn.x_nlinno = (v)) #ifdef OBJ_XCOFF #define SA_GET_SECT_SCNLEN(s) (SYM_AUXENT (s)->x_sect.x_scnlen) #define SA_GET_SECT_NRELOC(s) (SYM_AUXENT (s)->x_sect.x_nreloc) #define SA_SET_SECT_SCNLEN(s,v) (SYM_AUXENT (s)->x_sect.x_scnlen = (v)) #define SA_SET_SECT_NRELOC(s,v) (SYM_AUXENT (s)->x_sect.x_nreloc = (v)) #endif /* Internal use only definitions. SF_ stands for symbol flags. These values can be assigned to OBJ_SYMFIELD_TYPE obj field of a symbolS. */ #define SF_NORMAL_MASK 0x0000ffff /* bits 12-15 are general purpose. */ #define SF_STATICS 0x00001000 /* Mark the .text & all symbols. */ #define SF_DEFINED 0x00002000 /* Symbol is defined in this file. */ #define SF_STRING 0x00004000 /* Symbol name length > 8. */ #define SF_LOCAL 0x00008000 /* Symbol must not be emitted. */ #define SF_DEBUG_MASK 0xffff0000 /* bits 16-31 are debug info. */ #define SF_FUNCTION 0x00010000 /* The symbol is a function. */ #define SF_PROCESS 0x00020000 /* Process symbol before write. */ #define SF_TAGGED 0x00040000 /* Is associated with a tag. */ #define SF_TAG 0x00080000 /* Is a tag. */ #define SF_DEBUG 0x00100000 /* Is in debug or abs section. */ #define SF_GET_SEGMENT 0x00200000 /* Get the section of the forward symbol. */ /* All other bits are unused. */ /* Accessors. */ #define SF_GET(s) (* symbol_get_obj (s)) #define SF_GET_DEBUG(s) (symbol_get_bfdsym (s)->flags & BSF_DEBUGGING) #define SF_SET_DEBUG(s) (symbol_get_bfdsym (s)->flags |= BSF_DEBUGGING) #define SF_GET_NORMAL_FIELD(s) (SF_GET (s) & SF_NORMAL_MASK) #define SF_GET_DEBUG_FIELD(s) (SF_GET (s) & SF_DEBUG_MASK) #define SF_GET_FILE(s) (SF_GET (s) & SF_FILE) #define SF_GET_STATICS(s) (SF_GET (s) & SF_STATICS) #define SF_GET_DEFINED(s) (SF_GET (s) & SF_DEFINED) #define SF_GET_STRING(s) (SF_GET (s) & SF_STRING) #define SF_GET_LOCAL(s) (SF_GET (s) & SF_LOCAL) #define SF_GET_FUNCTION(s) (SF_GET (s) & SF_FUNCTION) #define SF_GET_PROCESS(s) (SF_GET (s) & SF_PROCESS) #define SF_GET_TAGGED(s) (SF_GET (s) & SF_TAGGED) #define SF_GET_TAG(s) (SF_GET (s) & SF_TAG) #define SF_GET_GET_SEGMENT(s) (SF_GET (s) & SF_GET_SEGMENT) /* Modifiers. */ #define SF_SET(s,v) (SF_GET (s) = (v)) #define SF_SET_NORMAL_FIELD(s,v)(SF_GET (s) |= ((v) & SF_NORMAL_MASK)) #define SF_SET_DEBUG_FIELD(s,v) (SF_GET (s) |= ((v) & SF_DEBUG_MASK)) #define SF_SET_FILE(s) (SF_GET (s) |= SF_FILE) #define SF_SET_STATICS(s) (SF_GET (s) |= SF_STATICS) #define SF_SET_DEFINED(s) (SF_GET (s) |= SF_DEFINED) #define SF_SET_STRING(s) (SF_GET (s) |= SF_STRING) #define SF_SET_LOCAL(s) (SF_GET (s) |= SF_LOCAL) #define SF_CLEAR_LOCAL(s) (SF_GET (s) &= ~SF_LOCAL) #define SF_SET_FUNCTION(s) (SF_GET (s) |= SF_FUNCTION) #define SF_SET_PROCESS(s) (SF_GET (s) |= SF_PROCESS) #define SF_SET_TAGGED(s) (SF_GET (s) |= SF_TAGGED) #define SF_SET_TAG(s) (SF_GET (s) |= SF_TAG) #define SF_SET_GET_SEGMENT(s) (SF_GET (s) |= SF_GET_SEGMENT) /* Line number handling. */ extern int text_lineno_number; extern int coff_line_base; extern int coff_n_line_nos; extern symbolS *coff_last_function; #define obj_emit_lineno(WHERE, LINE, FILE_START) abort () #define obj_app_file(name) c_dot_file_symbol (name) #define obj_assign_symbol(S) coff_assign_symbol (S) #define obj_frob_symbol(S,P) coff_frob_symbol (S, & P) #define obj_frob_section(S) coff_frob_section (S) #define obj_frob_file_after_relocs() coff_frob_file_after_relocs () #ifndef obj_adjust_symtab #define obj_adjust_symtab() coff_adjust_symtab () #endif /* Forward the segment of a forwarded symbol, handle assignments that just copy symbol values, etc. */ #ifndef OBJ_COPY_SYMBOL_ATTRIBUTES #ifndef TE_I386AIX #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ (SF_GET_GET_SEGMENT (dest) \ ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ : 0) #else #define OBJ_COPY_SYMBOL_ATTRIBUTES(dest, src) \ (SF_GET_GET_SEGMENT (dest) && S_GET_SEGMENT (dest) == SEG_UNKNOWN \ ? (S_SET_SEGMENT (dest, S_GET_SEGMENT (src)), 0) \ : 0) #endif #endif extern void coff_pop_insert (void); #ifndef obj_pop_insert #define obj_pop_insert() coff_pop_insert () #endif /* In COFF, if a symbol is defined using .def/.val SYM/.endef, it's OK to redefine the symbol later on. This can happen if C symbols use a prefix, and a symbol is defined both with and without the prefix, as in start/_start/__start in gcc/libgcc1-test.c. */ #define RESOLVE_SYMBOL_REDEFINITION(sym) \ (SF_GET_GET_SEGMENT (sym) \ ? (sym->frag = frag_now, \ S_SET_VALUE (sym, frag_now_fix ()), \ S_SET_SEGMENT (sym, now_seg), \ 0) \ : 0) /* Stabs in a coff file go into their own section. */ #define SEPARATE_STAB_SECTIONS 1 /* We need 12 bytes at the start of the section to hold some initial information. */ #define INIT_STAB_SECTION(stab, str) obj_coff_init_stab_section (stab, str) /* Store the number of relocations in the section aux entry. */ #ifdef OBJ_XCOFF #define SET_SECTION_RELOCS(sec, relocs, n) \ do { \ symbolS * sectSym = section_symbol (sec); \ if (S_GET_STORAGE_CLASS (sectSym) == C_DWARF) \ SA_SET_SECT_NRELOC (sectSym, n); \ else \ SA_SET_SCN_NRELOC (sectSym, n); \ } while (0) #else #define SET_SECTION_RELOCS(sec, relocs, n) \ SA_SET_SCN_NRELOC (section_symbol (sec), n) #endif extern int S_SET_DATA_TYPE (symbolS *, int); extern int S_SET_STORAGE_CLASS (symbolS *, int); extern int S_GET_STORAGE_CLASS (symbolS *); extern void SA_SET_SYM_ENDNDX (symbolS *, symbolS *); extern void coff_add_linesym (symbolS *); extern void c_dot_file_symbol (const char *); extern void coff_assign_symbol (symbolS *); extern void coff_frob_symbol (symbolS *, int *); extern void coff_adjust_symtab (void); extern void coff_frob_section (segT); extern void coff_adjust_section_syms (bfd *, asection *, void *); extern void coff_frob_file_after_relocs (void); extern void coff_obj_symbol_new_hook (symbolS *); extern void coff_obj_symbol_clone_hook (symbolS *, symbolS *); extern void coff_obj_read_begin_hook (void); #ifdef TE_PE extern void pecoff_obj_set_weak_hook (symbolS *); extern void pecoff_obj_clear_weak_hook (symbolS *); #endif extern void obj_coff_section (int); extern segT obj_coff_add_segment (const char *); extern void obj_coff_section (int); extern segT s_get_segment (symbolS *); #ifndef tc_coff_symbol_emit_hook extern void tc_coff_symbol_emit_hook (symbolS *); #endif extern void obj_coff_pe_handle_link_once (void); extern void obj_coff_init_stab_section (segT, segT); extern void c_section_header (struct internal_scnhdr *, char *, long, long, long, long, long, long, long, long); extern void obj_coff_seh_do_final (void); #ifndef obj_coff_generate_pdata #define obj_coff_generate_pdata obj_coff_seh_do_final #endif #endif /* OBJ_FORMAT_H */