From 88dfcd6832de16c90733ca6a9ec1336edfe7e3ad Mon Sep 17 00:00:00 2001 From: Steve Chamberlain Date: Thu, 1 Aug 1991 23:35:05 +0000 Subject: [PATCH] Added support for constructors, warnings and indirects --- bfd/aoutx.h | 70 ++++++++++++++++++++++++++++++++++++----------------- 1 file changed, 48 insertions(+), 22 deletions(-) diff --git a/bfd/aoutx.h b/bfd/aoutx.h index da1368ecd62..459f7b4ca1c 100644 --- a/bfd/aoutx.h +++ b/bfd/aoutx.h @@ -1,24 +1,22 @@ +/* BFD semi-generic back-end for a.out binaries + Copyright (C) 1990-1991 Free Software Foundation, Inc. + Written by Cygnus Support. -/* BFD semi-generic back-end for a.out binaries */ +This file is part of BFD, the Binary File Descriptor library. -/* Copyright (C) 1990, 1991 Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Diddler. - -BFD is free software; you can redistribute it and/or modify +This program 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 1, or (at your option) -any later version. +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. -BFD is distributed in the hope that it will be useful, +This program 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 BFD; see the file COPYING. If not, write to -the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */ - +along with this program; if not, write to the Free Software +Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ /*doc* @section a.out backends @@ -762,21 +760,25 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), asection *section ; arelent_chain *reloc = (arelent_chain *)bfd_alloc(abfd, sizeof(arelent_chain)); strcpy(copy, cache_ptr->symbol.name); - section = bfd_make_section(abfd,copy); + section = bfd_make_section(abfd,copy); switch ( (cache_ptr->type & N_TYPE) ) { case N_SETA: + section->flags = SEC_CONSTRUCTOR; reloc->relent.section = (asection *)NULL; cache_ptr->symbol.section = (asection *)NULL; break; case N_SETT: + section->flags = SEC_CONSTRUCTOR_TEXT; reloc->relent.section = (asection *)obj_textsec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; case N_SETD: + section->flags = SEC_CONSTRUCTOR_DATA; reloc->relent.section = (asection *)obj_datasec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; case N_SETB: + section->flags = SEC_CONSTRUCTOR_BSS; reloc->relent.section = (asection *)obj_bsssec(abfd); cache_ptr->symbol.value -= reloc->relent.section->vma; break; @@ -789,8 +791,8 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), really care, and add to the size of the section to contain a pointer to the symbol. Build a reloc entry to relocate to this symbol attached to this section. */ - - section->flags = SEC_CONSTRUCTOR; + + section->reloc_count++; section->alignment_power = 2; reloc->relent.sym_ptr_ptr = (asymbol **)NULL; @@ -798,13 +800,34 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), section->constructor_chain = reloc; reloc->relent.address = section->size; section->size += sizeof(int *); - + reloc->relent.howto = howto_table_ext +CTOR_TABLE_RELOC_IDX; - cache_ptr->symbol.flags |= BSF_DEBUGGING ; + cache_ptr->symbol.flags |= BSF_DEBUGGING | BSF_CONSTRUCTOR; } break; default: - + if (cache_ptr->type == N_WARNING) + { + /* This symbol is the text of a warning message, the next symbol + is the symbol to associate the warning with */ + cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_WARNING; + cache_ptr->symbol.value = (bfd_vma)((cache_ptr+1)); + /* We furgle with the next symbol in place. We don't want it to be undefined, we'll trample the type */ + (sym_pointer+1)->e_type[0] = 0xff; + break; + } + if (cache_ptr->type == N_INDR) { + /* Two symbols in a row for an INDR message. The first symbol + contains the name we will match, the second symbol contains the + name the first name is translated into. It is supplied to us + undefined. This is good, since we want to pull in any files which + define it */ + cache_ptr->symbol.flags = BSF_DEBUGGING | BSF_INDIRECT; + cache_ptr->symbol.value = (bfd_vma)((cache_ptr+1)); + break; + } + + if (sym_is_debugger_info (cache_ptr)) { cache_ptr->symbol.flags = BSF_DEBUGGING ; /* Work out the section correct for this symbol */ @@ -830,6 +853,7 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), } } else { + if (sym_is_fortrancommon (cache_ptr)) { cache_ptr->symbol.flags = BSF_FORT_COMM; @@ -842,14 +866,14 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), else if (sym_is_global_defn (cache_ptr)) { cache_ptr->symbol.flags = BSF_GLOBAL | BSF_EXPORT; } - + else if (sym_is_absolute (cache_ptr)) { cache_ptr->symbol.flags = BSF_ABSOLUTE; } else { cache_ptr->symbol.flags = BSF_LOCAL; } - + /* In a.out, the value of a symbol is always relative to the * start of the file, if this is a data symbol we'll subtract * the size of the text section to get the section relative @@ -857,7 +881,7 @@ DEFUN(translate_from_native_sym_flags,(sym_pointer, cache_ptr, abfd), * we'll subtract the size of the previous two sections * to find the section relative address. */ - + if (sym_in_text_section (cache_ptr)) { cache_ptr->symbol.value -= obj_textsec(abfd)->vma; cache_ptr->symbol.section = obj_textsec (abfd); @@ -910,7 +934,9 @@ DEFUN(translate_to_native_sym_flags,(sym_pointer, cache_ptr, abfd), else { sym_pointer->e_type[0] |= N_ABS; } - + if (cache_ptr->flags & (BSF_WARNING)) { + (sym_pointer+1)->e_type[0] = 1; + } if (cache_ptr->flags & (BSF_FORT_COMM | BSF_UNDEFINED)) { sym_pointer->e_type[0] = (N_UNDF | N_EXT); } -- 2.30.2