(aix386_core_file_p): Use cd_regs[0] for computing the offsetof because AIX
/bin/cc does not like to take the address of an array. (From Minh Tran-Le.)
This commit is contained in:
Ken Raeburn
parent
0a75cb6cd8
commit
29c4b8befb
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@ -0,0 +1,341 @@
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/* BFD back-end for AIX on PS/2 core files.
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This was based on trad-core.c, which was written by John Gilmore of
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Cygnus Support.
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Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
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Written by Minh Tran-Le <TRANLE@INTELLICORP.COM>.
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Converted to back end form by Ian Lance Taylor <ian@cygnus.com>.
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This file is part of BFD, the Binary File Descriptor library.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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/* To use this file on a particular host, configure the host with these
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parameters in the config/h-HOST file:
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HDEFINES=-DAIX386_CORE=1
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HDEPFILES=aix386-core.o
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*/
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#include "bfd.h"
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#include "sysdep.h"
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#include "libbfd.h"
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#include "obstack.h"
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#include "coff/i386.h"
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#include "coff/internal.h"
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#include "libcoff.h"
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#include <stdio.h>
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#include <stddef.h>
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#include <signal.h>
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#include <errno.h>
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#if defined (_AIX) && defined (_I386)
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#define NOCHECKS /* this is for coredump.h */
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#define _h_USER /* avoid including user.h from coredump.h */
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#include <uinfo.h>
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#include <sys/i386/coredump.h>
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#endif /* _AIX && _I386 */
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/* maybe this could work on some other i386 but I have not tried it
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* mtranle@paris - Tue Sep 24 12:49:35 1991
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*/
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#ifndef COR_MAGIC
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# define COR_MAGIC "core"
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#endif
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/* need this cast because ptr is really void * */
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#define core_hdr(bfd) \
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(((bfd->tdata.trad_core_data))->hdr)
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#define core_section(bfd,n) \
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(((bfd)->tdata.trad_core_data)->sections[n])
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#define core_regsec(bfd) \
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(((bfd)->tdata.trad_core_data)->reg_section)
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#define core_reg2sec(bfd) \
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(((bfd)->tdata.trad_core_data)->reg2_section)
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/* These are stored in the bfd's tdata */
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struct trad_core_struct {
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struct corehdr *hdr; /* core file header */
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asection *reg_section;
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asection *reg2_section;
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asection *sections[MAX_CORE_SEGS];
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};
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static bfd_target *
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DEFUN(aix386_core_file_p,(abfd),
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bfd *abfd)
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{
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int i,n;
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unsigned char longbuf[4]; /* Raw bytes of various header fields */
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int core_size = sizeof (struct corehdr);
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struct corehdr *core;
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struct mergem {
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struct trad_core_struct coredata;
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struct corehdr internal_core;
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} *mergem;
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bfd_error = system_call_error;
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if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
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return 0;
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if (strncmp(longbuf,COR_MAGIC,4)) return 0;
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if (bfd_seek (abfd, 0L, false) < 0) return 0;
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mergem = (struct mergem *)bfd_zalloc (abfd, sizeof (struct mergem));
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if (mergem == NULL)
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{
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bfd_error = no_memory;
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return 0;
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}
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core = &mergem->internal_core;
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if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
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{
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bfd_error = system_call_error;
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bfd_release (abfd, (char *)mergem);
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return 0;
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}
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set_tdata (abfd, &mergem->coredata);
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core_hdr (abfd) = core;
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/* create the sections. This is raunchy, but bfd_close wants to reclaim
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them */
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core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
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if (core_regsec (abfd) == NULL)
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{
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loser:
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bfd_error = no_memory;
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bfd_release (abfd, (char *)mergem);
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return 0;
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}
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core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
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if (core_reg2sec (abfd) == NULL)
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{
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loser1:
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bfd_release (abfd, core_regsec (abfd));
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goto loser;
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}
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for (i=0, n=0 ; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type) ; i++)
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{
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if (core->cd_segs[i].cs_offset == 0)
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continue;
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core_section (abfd,n) =
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(asection *) bfd_zalloc (abfd, sizeof (asection));
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if (core_section (abfd,n) == NULL)
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{
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int j;
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if (n > 0)
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{
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for (j=0; j < n; j++)
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bfd_release (abfd, core_section(abfd, j));
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}
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bfd_release (abfd, (char *)mergem);
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goto loser1;
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}
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switch (core->cd_segs[i].cs_type)
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{
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case COR_TYPE_DATA:
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core_section (abfd, n)->name = ".data";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
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SEC_HAS_CONTENTS);
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break;
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case COR_TYPE_STACK:
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core_section (abfd, n)->name = ".stack";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
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SEC_HAS_CONTENTS);
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break;
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case COR_TYPE_LIBDATA:
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core_section (abfd, n)->name = ".libdata";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
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break;
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case COR_TYPE_WRITE:
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core_section (abfd, n)->name = ".writeable";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
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break;
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case COR_TYPE_MSC:
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core_section (abfd, n)->name = ".misc";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
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break;
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default:
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core_section (abfd, n)->name = ".unknown";
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core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
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break;
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}
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core_section (abfd, n)->_raw_size = core->cd_segs[i].cs_len;
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core_section (abfd, n)->vma = core->cd_segs[i].cs_address;
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core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset;
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core_section (abfd, n)->alignment_power = 2;
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core_section (abfd, n)->next = NULL;
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if (n > 0)
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core_section (abfd, (n-1))->next = core_section (abfd, n);
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abfd->section_count = ++n;
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}
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core_regsec (abfd)->name = ".reg";
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core_reg2sec (abfd)->name = ".reg2";
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core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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core_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
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core_regsec (abfd)->_raw_size = sizeof(core->cd_regs);
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core_reg2sec (abfd)->_raw_size = sizeof(core->cd_fpregs);
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core_regsec (abfd)->vma = -1;
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core_reg2sec (abfd)->vma = -1;
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/* We'll access the regs afresh in the core file, like any section: */
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core_regsec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,cd_regs[0]);
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core_reg2sec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,
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cd_fpregs);
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/* add the 2 reg fake sections to abfd */
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abfd->section_count += 2;
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abfd->sections = core_regsec (abfd);
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core_regsec (abfd)->next = core_reg2sec (abfd);
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core_reg2sec (abfd)->next = core_section (abfd, 0);
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return abfd->xvec;
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}
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static char *
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DEFUN(aix386_core_file_failing_command,(abfd),
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bfd *abfd)
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{
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return core_hdr (abfd)->cd_comm;
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}
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static int
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DEFUN(aix386_core_file_failing_signal,(abfd),
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bfd *abfd)
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{
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return core_hdr (abfd)->cd_cursig;
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}
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static boolean
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DEFUN(aix386_core_file_matches_executable_p, (core_bfd, exec_bfd),
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bfd *core_bfd AND
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bfd *exec_bfd)
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{
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return true; /* FIXME, We have no way of telling at this
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point */
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}
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/* No archive file support via this BFD */
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#define aix386_openr_next_archived_file bfd_generic_openr_next_archived_file
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#define aix386_generic_stat_arch_elt bfd_generic_stat_arch_elt
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#define aix386_slurp_armap bfd_false
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#define aix386_slurp_extended_name_table bfd_true
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#define aix386_write_armap (PROTO (boolean, (*), \
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(bfd *arch, unsigned int elength, struct orl *map, \
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unsigned int orl_count, int stridx))) bfd_false
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#define aix386_truncate_arname bfd_dont_truncate_arname
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#define aix386_close_and_cleanup bfd_generic_close_and_cleanup
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#define aix386_set_section_contents (PROTO(boolean, (*), \
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(bfd *abfd, asection *section, PTR data, file_ptr offset, \
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bfd_size_type count))) bfd_false
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#define aix386_get_section_contents bfd_generic_get_section_contents
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#define aix386_new_section_hook (PROTO (boolean, (*), \
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(bfd *, sec_ptr))) bfd_true
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#define aix386_get_symtab_upper_bound bfd_0u
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#define aix386_get_symtab (PROTO (unsigned int, (*), \
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(bfd *, struct symbol_cache_entry **))) bfd_0u
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#define aix386_get_reloc_upper_bound (PROTO (unsigned int, (*), \
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(bfd *, sec_ptr))) bfd_0u
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#define aix386_canonicalize_reloc (PROTO (unsigned int, (*), \
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(bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
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#define aix386_make_empty_symbol (PROTO ( \
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struct symbol_cache_entry *, (*), (bfd *))) bfd_false
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#define aix386_print_symbol (PROTO (void, (*), \
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(bfd *, PTR, struct symbol_cache_entry *, \
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bfd_print_symbol_type))) bfd_false
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#define aix386_get_symbol_info (PROTO (void, (*), \
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(bfd *, struct symbol_cache_entry *, \
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symbol_info *))) bfd_false
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#define aix386_get_lineno (PROTO (alent *, (*), \
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(bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
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#define aix386_set_arch_mach (PROTO (boolean, (*), \
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(bfd *, enum bfd_architecture, unsigned long))) bfd_false
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#define aix386_find_nearest_line (PROTO (boolean, (*), \
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(bfd *abfd, struct sec *section, \
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struct symbol_cache_entry **symbols,bfd_vma offset, \
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CONST char **file, CONST char **func, unsigned int *line))) bfd_false
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#define aix386_sizeof_headers (PROTO (int, (*), \
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(bfd *, boolean))) bfd_0
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#define aix386_bfd_debug_info_start bfd_void
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#define aix386_bfd_debug_info_end bfd_void
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#define aix386_bfd_debug_info_accumulate (PROTO (void, (*), \
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(bfd *, struct sec *))) bfd_void
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#define aix386_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
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#define aix386_bfd_relax_section bfd_generic_relax_section
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#define aix386_bfd_seclet_link \
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((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
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#define aix386_bfd_reloc_type_lookup \
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((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
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#define aix386_bfd_make_debug_symbol \
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((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
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/* If somebody calls any byte-swapping routines, shoot them. */
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void
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swap_abort()
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{
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abort(); /* This way doesn't require any declaration for ANSI to fuck up */
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}
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#define NO_GET ((PROTO(bfd_vma, (*), ( bfd_byte *))) swap_abort )
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#define NO_GETS ((PROTO(bfd_signed_vma, (*), ( bfd_byte *))) swap_abort )
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#define NO_PUT ((PROTO(void, (*), (bfd_vma, bfd_byte *))) swap_abort )
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bfd_target aix386_core_vec =
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{
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"aix386-core",
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bfd_target_unknown_flavour,
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true, /* target byte order */
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true, /* target headers byte order */
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(HAS_RELOC | EXEC_P | /* object flags */
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HAS_LINENO | HAS_DEBUG |
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HAS_SYMS | HAS_LOCALS | WP_TEXT),
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(SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
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0, /* leading underscore */
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' ', /* ar_pad_char */
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16, /* ar_max_namelen */
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3, /* minimum alignment power */
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT, /* data */
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT,
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NO_GET, NO_GETS, NO_PUT, /* hdrs */
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{_bfd_dummy_target, _bfd_dummy_target,
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_bfd_dummy_target, aix386_core_file_p},
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{bfd_false, bfd_false, /* bfd_create_object */
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bfd_false, bfd_false},
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{bfd_false, bfd_false, /* bfd_write_contents */
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bfd_false, bfd_false},
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JUMP_TABLE(aix386),
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(PTR) 0
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};
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