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authorSteve Chamberlain <steve@cygnus>1991-08-01 23:35:05 +0000
committerSteve Chamberlain <steve@cygnus>1991-08-01 23:35:05 +0000
commit88dfcd6832de16c90733ca6a9ec1336edfe7e3ad (patch)
treeb2899429415b500c9d640496ef2b221382f74166 /bfd
parent8101605119976f94d00db43a2d78d7fb341a7680 (diff)
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Added support for constructors, warnings and indirects
Diffstat (limited to 'bfd')
-rw-r--r--bfd/aoutx.h70
1 files changed, 48 insertions, 22 deletions
diff --git a/bfd/aoutx.h b/bfd/aoutx.h
index da1368e..459f7b4 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);
}