Initial revision

1 files changed, 283 insertions, 0 deletions

diff --git a/bfd/aix386-core.c b/bfd/aix386-core.c
new file mode 100644
index 0000000000..a75fa94262
--- /dev/null
+++ b/bfd/aix386-core.c
@@ -0,0 +1,283 @@
+/* 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, 89, 91, 92, 93, 94, 95, 96, 97, 1998
+   Free Software Foundation, Inc.
+   Written by Minh Tran-Le <TRANLE@INTELLICORP.COM>.
+   Converted to back end form by Ian Lance Taylor <ian@cygnus.com>.
+
+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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "coff/i386.h"
+#include "coff/internal.h"
+#include "libcoff.h"
+
+#include <signal.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 void swap_abort PARAMS ((void));
+
+static const 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)
+    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_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_HAS_CONTENTS;
+  core_reg2sec (abfd)->flags = 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.  */
+static 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 )
+
+const bfd_target aix386_core_vec =
+  {
+    "aix386-core",
+    bfd_target_unknown_flavour,
+    BFD_ENDIAN_BIG,		/* target byte order */
+    BFD_ENDIANG_BIG,		/* 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 */
+    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),
+     BFD_JUMP_TABLE_DYNAMIC (_bfd_nodynamic),
+
+    (PTR) 0
+};