[binutils.git] / bfd / aix386-core.c

/* BFD back-end for AIX on PS/2 core files.
   This was based on trad-core.c, which was written by John Gilmore of
        Cygnus Support.
   Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
   Written by Minh Tran-Le <[email protected]>.
   Converted to back end form by Ian Lance Taylor <[email protected]>.

This file is part of BFD, the Binary File Descriptor library.

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 2 of the License, or
(at your option) any later version.

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 this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */

/* To use this file on a particular host, configure the host with these
   parameters in the config/h-HOST file:

	HDEFINES=-DAIX386_CORE=1
	HDEPFILES=aix386-core.o
 */

#include "bfd.h"
#include "sysdep.h"
#include "libbfd.h"
#include "obstack.h"
#include "coff/i386.h"
#include "coff/internal.h"
#include "libcoff.h"

#include <stdio.h>
#include <stddef.h>
#include <signal.h>

#include <errno.h>

#if defined (_AIX) && defined (_I386)
#define NOCHECKS		/* this is for coredump.h */
#define _h_USER			/* avoid including user.h from coredump.h */
#include <uinfo.h>
#include <sys/i386/coredump.h>
#endif /* _AIX && _I386 */

/* maybe this could work on some other i386 but I have not tried it
 * mtranle@paris - Tue Sep 24 12:49:35 1991
 */

#ifndef COR_MAGIC
# define COR_MAGIC "core"
#endif

/* need this cast because ptr is really void * */
#define core_hdr(bfd) \
    (((bfd->tdata.trad_core_data))->hdr)
#define core_section(bfd,n) \
    (((bfd)->tdata.trad_core_data)->sections[n])
#define core_regsec(bfd) \
    (((bfd)->tdata.trad_core_data)->reg_section)
#define core_reg2sec(bfd) \
    (((bfd)->tdata.trad_core_data)->reg2_section)

/* These are stored in the bfd's tdata */
struct trad_core_struct {
  struct corehdr *hdr;		/* core file header */
  asection *reg_section;
  asection *reg2_section;
  asection *sections[MAX_CORE_SEGS];
};

static bfd_target *
aix386_core_file_p (abfd)
     bfd *abfd;
{
  int i,n;
  unsigned char longbuf[4];	/* Raw bytes of various header fields */
  int core_size = sizeof (struct corehdr);
  struct corehdr *core;
  struct mergem {
    struct trad_core_struct coredata;
    struct corehdr internal_core;
  } *mergem;

  if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
    {
      if (bfd_get_error () != bfd_error_system_call)
	bfd_set_error (bfd_error_wrong_format);
      return 0;
    }

  if (strncmp(longbuf,COR_MAGIC,4)) return 0;

  if (bfd_seek (abfd, 0L, false) < 0) return 0;

  mergem = (struct mergem *)bfd_zalloc (abfd, sizeof (struct mergem));
  if (mergem == NULL)
    {
      bfd_set_error (bfd_error_no_memory);
      return 0;
    }

  core = &mergem->internal_core;

  if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
    {
      if (bfd_get_error () != bfd_error_system_call)
	bfd_set_error (bfd_error_wrong_format);
      bfd_release (abfd, (char *)mergem);
      return 0;
    }

  set_tdata (abfd, &mergem->coredata);
  core_hdr (abfd) = core;

  /* create the sections.  This is raunchy, but bfd_close wants to reclaim
     them */
  core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
  if (core_regsec (abfd) == NULL)
    {
    loser:
      bfd_set_error (bfd_error_no_memory);
      bfd_release (abfd, (char *)mergem);
      return 0;
    }
  core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
  if (core_reg2sec (abfd) == NULL)
    {
    loser1:
     bfd_release (abfd, core_regsec (abfd));
      goto loser;
    }

  for (i=0, n=0 ; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type) ; i++)
    {
      if (core->cd_segs[i].cs_offset == 0)
	continue;
      core_section (abfd,n) =
	(asection *) bfd_zalloc (abfd, sizeof (asection));
      if (core_section (abfd,n) == NULL)
	{
	  int j;
	  if (n > 0)
	    {
	      for (j=0; j < n; j++)
		bfd_release (abfd, core_section(abfd, j));
	    }
	  bfd_release (abfd, (char *)mergem);
	  goto loser1;
	}

      switch (core->cd_segs[i].cs_type)
	{
	case COR_TYPE_DATA:
	  core_section (abfd, n)->name = ".data";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
					   SEC_HAS_CONTENTS);
	  break;
	case COR_TYPE_STACK:
	  core_section (abfd, n)->name = ".stack";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
					   SEC_HAS_CONTENTS);
	  break;
	case COR_TYPE_LIBDATA:
	  core_section (abfd, n)->name = ".libdata";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	  break;
	case COR_TYPE_WRITE:
	  core_section (abfd, n)->name = ".writeable";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	  break;
	case COR_TYPE_MSC:
	  core_section (abfd, n)->name = ".misc";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	  break;
	default:
	  core_section (abfd, n)->name = ".unknown";
	  core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	  break;
	}
      core_section (abfd, n)->_raw_size = core->cd_segs[i].cs_len;
      core_section (abfd, n)->vma       = core->cd_segs[i].cs_address;
      core_section (abfd, n)->filepos   = core->cd_segs[i].cs_offset;
      core_section (abfd, n)->alignment_power = 2;
      core_section (abfd, n)->next      = NULL;
      if (n > 0)
	core_section (abfd, (n-1))->next = core_section (abfd, n);

      abfd->section_count = ++n;
    }

  core_regsec (abfd)->name = ".reg";
  core_reg2sec (abfd)->name = ".reg2";

  core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
  core_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;

  core_regsec (abfd)->_raw_size = sizeof(core->cd_regs);
  core_reg2sec (abfd)->_raw_size = sizeof(core->cd_fpregs);

  core_regsec (abfd)->vma = -1;
  core_reg2sec (abfd)->vma = -1;

  /* We'll access the regs afresh in the core file, like any section: */
  core_regsec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,cd_regs[0]);
  core_reg2sec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,
						    cd_fpregs);

  /* add the 2 reg fake sections to abfd */
  abfd->section_count += 2;
  abfd->sections = core_regsec (abfd);
  core_regsec (abfd)->next = core_reg2sec (abfd);
  core_reg2sec (abfd)->next = core_section (abfd, 0);

  return abfd->xvec;
}

static char *
aix386_core_file_failing_command (abfd)
     bfd *abfd;
{
  return core_hdr (abfd)->cd_comm;
}

static int
aix386_core_file_failing_signal (abfd)
     bfd *abfd;
{
  return core_hdr (abfd)->cd_cursig;
}

static boolean
aix386_core_file_matches_executable_p (core_bfd, exec_bfd)
     bfd *core_bfd;
     bfd *exec_bfd;
{
  return true;			/* FIXME, We have no way of telling at this
				   point */
}

/* If somebody calls any byte-swapping routines, shoot them.  */
void
swap_abort()
{
  abort(); /* This way doesn't require any declaration for ANSI to fuck up */
}
#define	NO_GET	((PROTO(bfd_vma, (*), (       const bfd_byte *))) swap_abort )
#define NO_GETS ((PROTO(bfd_signed_vma, (*), (const bfd_byte *))) swap_abort )
#define	NO_PUT	((PROTO(void,        (*), (bfd_vma, bfd_byte *))) swap_abort )

bfd_target aix386_core_vec =
  {
    "aix386-core",
    bfd_target_unknown_flavour,
    true,			/* target byte order */
    true,			/* target headers byte order */
  (HAS_RELOC | EXEC_P |		/* object flags */
   HAS_LINENO | HAS_DEBUG |
   HAS_SYMS | HAS_LOCALS | WP_TEXT),

  (SEC_HAS_CONTENTS | SEC_ALLOC | SEC_LOAD | SEC_RELOC), /* section flags */
    0,						/* leading underscore */
    ' ',					/* ar_pad_char */
    16,						/* ar_max_namelen */
    3,						/* minimum alignment power */
    NO_GET, NO_GETS, NO_PUT,
    NO_GET, NO_GETS, NO_PUT,
    NO_GET, NO_GETS, NO_PUT, /* data */
    NO_GET, NO_GETS, NO_PUT,
    NO_GET, NO_GETS, NO_PUT,
    NO_GET, NO_GETS, NO_PUT, /* hdrs */

    {_bfd_dummy_target, _bfd_dummy_target,
     _bfd_dummy_target, aix386_core_file_p},
    {bfd_false, bfd_false,	/* bfd_create_object */
     bfd_false, bfd_false},
    {bfd_false, bfd_false,	/* bfd_write_contents */
     bfd_false, bfd_false},

     BFD_JUMP_TABLE_GENERIC (_bfd_generic),
     BFD_JUMP_TABLE_COPY (_bfd_generic),
     BFD_JUMP_TABLE_CORE (aix386),
     BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
     BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
     BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
     BFD_JUMP_TABLE_WRITE (_bfd_generic),
     BFD_JUMP_TABLE_LINK (_bfd_nolink),

    (PTR) 0
};
Commit	Line	Data
29c4b8be KR	1	/* BFD back-end for AIX on PS/2 core files.
	2	This was based on trad-core.c, which was written by John Gilmore of
	3	Cygnus Support.
	4	Copyright 1988, 1989, 1991, 1992, 1993 Free Software Foundation, Inc.
	5	Written by Minh Tran-Le <[email protected]>.
	6	Converted to back end form by Ian Lance Taylor <[email protected]>.
	7
	8	This file is part of BFD, the Binary File Descriptor library.
	9
	10	This program is free software; you can redistribute it and/or modify
	11	it under the terms of the GNU General Public License as published by
	12	the Free Software Foundation; either version 2 of the License, or
	13	(at your option) any later version.
	14
	15	This program is distributed in the hope that it will be useful,
	16	but WITHOUT ANY WARRANTY; without even the implied warranty of
	17	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	18	GNU General Public License for more details.
	19
	20	You should have received a copy of the GNU General Public License
	21	along with this program; if not, write to the Free Software
	22	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
	23
	24	/* To use this file on a particular host, configure the host with these
	25	parameters in the config/h-HOST file:
	26
	27	HDEFINES=-DAIX386_CORE=1
	28	HDEPFILES=aix386-core.o
	29	*/
	30
	31	#include "bfd.h"
	32	#include "sysdep.h"
	33	#include "libbfd.h"
	34	#include "obstack.h"
	35	#include "coff/i386.h"
	36	#include "coff/internal.h"
	37	#include "libcoff.h"
	38
	39	#include <stdio.h>
	40	#include <stddef.h>
	41	#include <signal.h>
	42
	43	#include <errno.h>
	44
	45	#if defined (_AIX) && defined (_I386)
	46	#define NOCHECKS /* this is for coredump.h */
	47	#define _h_USER /* avoid including user.h from coredump.h */
	48	#include <uinfo.h>
	49	#include <sys/i386/coredump.h>
	50	#endif /* _AIX && _I386 */
	51
	52	/* maybe this could work on some other i386 but I have not tried it
	53	* mtranle@paris - Tue Sep 24 12:49:35 1991
	54	*/
	55
	56	#ifndef COR_MAGIC
	57	# define COR_MAGIC "core"
	58	#endif
	59
	60	/* need this cast because ptr is really void * */
	61	#define core_hdr(bfd) \
	62	(((bfd->tdata.trad_core_data))->hdr)
	63	#define core_section(bfd,n) \
	64	(((bfd)->tdata.trad_core_data)->sections[n])
65	#define core_regsec(bfd) \
66	(((bfd)->tdata.trad_core_data)->reg_section)
67	#define core_reg2sec(bfd) \
68	(((bfd)->tdata.trad_core_data)->reg2_section)
69
70	/* These are stored in the bfd's tdata */
71	struct trad_core_struct {
72	struct corehdr hdr; / core file header */
73	asection *reg_section;
74	asection *reg2_section;
75	asection *sections[MAX_CORE_SEGS];
76	};
77
78	static bfd_target *
57a1867e DM	79	aix386_core_file_p (abfd)
57a1867e DM	80	bfd *abfd;
29c4b8be KR	81	{
	82	int i,n;
	83	unsigned char longbuf[4]; /* Raw bytes of various header fields */
	84	int core_size = sizeof (struct corehdr);
	85	struct corehdr *core;
	86	struct mergem {
	87	struct trad_core_struct coredata;
	88	struct corehdr internal_core;
	89	} *mergem;
	90
29c4b8be	91	if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
25057836 JL	92	{
	93	if (bfd_get_error () != bfd_error_system_call)
	94	bfd_set_error (bfd_error_wrong_format);
	95	return 0;
	96	}
29c4b8be KR	97
	98	if (strncmp(longbuf,COR_MAGIC,4)) return 0;
	99
	100	if (bfd_seek (abfd, 0L, false) < 0) return 0;
	101
	102	mergem = (struct mergem *)bfd_zalloc (abfd, sizeof (struct mergem));
	103	if (mergem == NULL)
	104	{
57a1867e	105	bfd_set_error (bfd_error_no_memory);
29c4b8be KR	106	return 0;
	107	}
	108
	109	core = &mergem->internal_core;
	110
	111	if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
	112	{
25057836 JL	113	if (bfd_get_error () != bfd_error_system_call)
25057836 JL	114	bfd_set_error (bfd_error_wrong_format);
29c4b8be KR	115	bfd_release (abfd, (char *)mergem);
	116	return 0;
	117	}
	118
	119	set_tdata (abfd, &mergem->coredata);
	120	core_hdr (abfd) = core;
	121
	122	/* create the sections. This is raunchy, but bfd_close wants to reclaim
	123	them */
	124	core_regsec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
	125	if (core_regsec (abfd) == NULL)
	126	{
	127	loser:
57a1867e	128	bfd_set_error (bfd_error_no_memory);
29c4b8be KR	129	bfd_release (abfd, (char *)mergem);
	130	return 0;
	131	}
	132	core_reg2sec (abfd) = (asection *) bfd_zalloc (abfd, sizeof (asection));
	133	if (core_reg2sec (abfd) == NULL)
	134	{
	135	loser1:
	136	bfd_release (abfd, core_regsec (abfd));
	137	goto loser;
	138	}
	139
	140	for (i=0, n=0 ; (i < MAX_CORE_SEGS) && (core->cd_segs[i].cs_type) ; i++)
	141	{
	142	if (core->cd_segs[i].cs_offset == 0)
	143	continue;
	144	core_section (abfd,n) =
	145	(asection *) bfd_zalloc (abfd, sizeof (asection));
	146	if (core_section (abfd,n) == NULL)
	147	{
	148	int j;
	149	if (n > 0)
	150	{
	151	for (j=0; j < n; j++)
	152	bfd_release (abfd, core_section(abfd, j));
	153	}
	154	bfd_release (abfd, (char *)mergem);
	155	goto loser1;
	156	}
	157
	158	switch (core->cd_segs[i].cs_type)
	159	{
	160	case COR_TYPE_DATA:
	161	core_section (abfd, n)->name = ".data";
	162	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
	163	SEC_HAS_CONTENTS);
	164	break;
	165	case COR_TYPE_STACK:
	166	core_section (abfd, n)->name = ".stack";
	167	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_LOAD +
	168	SEC_HAS_CONTENTS);
	169	break;
	170	case COR_TYPE_LIBDATA:
	171	core_section (abfd, n)->name = ".libdata";
	172	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	173	break;
	174	case COR_TYPE_WRITE:
	175	core_section (abfd, n)->name = ".writeable";
	176	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	177	break;
	178	case COR_TYPE_MSC:
	179	core_section (abfd, n)->name = ".misc";
	180	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	181	break;
	182	default:
	183	core_section (abfd, n)->name = ".unknown";
	184	core_section (abfd, n)->flags = (SEC_ALLOC + SEC_HAS_CONTENTS);
	185	break;
	186	}
	187	core_section (abfd, n)->_raw_size = core->cd_segs[i].cs_len;
	188	core_section (abfd, n)->vma = core->cd_segs[i].cs_address;
	189	core_section (abfd, n)->filepos = core->cd_segs[i].cs_offset;
	190	core_section (abfd, n)->alignment_power = 2;
	191	core_section (abfd, n)->next = NULL;
	192	if (n > 0)
193	core_section (abfd, (n-1))->next = core_section (abfd, n);
194
195	abfd->section_count = ++n;
196	}
197
198	core_regsec (abfd)->name = ".reg";
199	core_reg2sec (abfd)->name = ".reg2";
200
201	core_regsec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
202	core_reg2sec (abfd)->flags = SEC_ALLOC + SEC_HAS_CONTENTS;
203
204	core_regsec (abfd)->_raw_size = sizeof(core->cd_regs);
205	core_reg2sec (abfd)->_raw_size = sizeof(core->cd_fpregs);
206
207	core_regsec (abfd)->vma = -1;
208	core_reg2sec (abfd)->vma = -1;
209
210	/* We'll access the regs afresh in the core file, like any section: */
211	core_regsec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,cd_regs[0]);
212	core_reg2sec (abfd)->filepos = (file_ptr)offsetof(struct corehdr,
213	cd_fpregs);
214
215	/* add the 2 reg fake sections to abfd */
216	abfd->section_count += 2;
217	abfd->sections = core_regsec (abfd);
218	core_regsec (abfd)->next = core_reg2sec (abfd);
219	core_reg2sec (abfd)->next = core_section (abfd, 0);
220
221	return abfd->xvec;
222	}
223
224	static char *
57a1867e DM	225	aix386_core_file_failing_command (abfd)
57a1867e DM	226	bfd *abfd;
29c4b8be KR	227	{
	228	return core_hdr (abfd)->cd_comm;
	229	}
	230
	231	static int
57a1867e DM	232	aix386_core_file_failing_signal (abfd)
57a1867e DM	233	bfd *abfd;
29c4b8be KR	234	{
	235	return core_hdr (abfd)->cd_cursig;
	236	}
	237
	238	static boolean
57a1867e DM	239	aix386_core_file_matches_executable_p (core_bfd, exec_bfd)
	240	bfd *core_bfd;
	241	bfd *exec_bfd;
29c4b8be KR	242	{
	243	return true; /* FIXME, We have no way of telling at this
	244	point */
	245	}
	246
29c4b8be KR	247	/* If somebody calls any byte-swapping routines, shoot them. */
	248	void
	249	swap_abort()
	250	{
	251	abort(); /* This way doesn't require any declaration for ANSI to fuck up */
	252	}
57a1867e DM	253	#define NO_GET ((PROTO(bfd_vma, (), ( const bfd_byte ))) swap_abort )
	254	#define NO_GETS ((PROTO(bfd_signed_vma, (), (const bfd_byte ))) swap_abort )
	255	#define NO_PUT ((PROTO(void, (), (bfd_vma, bfd_byte ))) swap_abort )
29c4b8be KR	256
	257	bfd_target aix386_core_vec =
	258	{
	259	"aix386-core",
	260	bfd_target_unknown_flavour,
	261	true, /* target byte order */
	262	true, /* target headers byte order */
	263	(HAS_RELOC \| EXEC_P \| /* object flags */
	264	HAS_LINENO \| HAS_DEBUG \|
	265	HAS_SYMS \| HAS_LOCALS \| WP_TEXT),
	266
	267	(SEC_HAS_CONTENTS \| SEC_ALLOC \| SEC_LOAD \| SEC_RELOC), /* section flags */
	268	0, /* leading underscore */
	269	' ', /* ar_pad_char */
	270	16, /* ar_max_namelen */
	271	3, /* minimum alignment power */
	272	NO_GET, NO_GETS, NO_PUT,
	273	NO_GET, NO_GETS, NO_PUT,
	274	NO_GET, NO_GETS, NO_PUT, /* data */
	275	NO_GET, NO_GETS, NO_PUT,
	276	NO_GET, NO_GETS, NO_PUT,
	277	NO_GET, NO_GETS, NO_PUT, /* hdrs */
	278
	279	{_bfd_dummy_target, _bfd_dummy_target,
	280	_bfd_dummy_target, aix386_core_file_p},
	281	{bfd_false, bfd_false, /* bfd_create_object */
	282	bfd_false, bfd_false},
	283	{bfd_false, bfd_false, /* bfd_write_contents */
	284	bfd_false, bfd_false},
6812b607 ILT	285
	286	BFD_JUMP_TABLE_GENERIC (_bfd_generic),
	287	BFD_JUMP_TABLE_COPY (_bfd_generic),
	288	BFD_JUMP_TABLE_CORE (aix386),
	289	BFD_JUMP_TABLE_ARCHIVE (_bfd_noarchive),
	290	BFD_JUMP_TABLE_SYMBOLS (_bfd_nosymbols),
	291	BFD_JUMP_TABLE_RELOCS (_bfd_norelocs),
	292	BFD_JUMP_TABLE_WRITE (_bfd_generic),
	293	BFD_JUMP_TABLE_LINK (_bfd_nolink),
	294
29c4b8be KR	295	(PTR) 0
29c4b8be KR	296	};