(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.)

1 files changed, 341 insertions, 0 deletions

diff --git a/bfd/aix386-core.c b/bfd/aix386-core.c
new file mode 100644
index 0000000..3701367
--- /dev/null
+++ b/bfd/aix386-core.c
@@ -0,0 +1,341 @@
+/* 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 <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., 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 *
+DEFUN(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;
+
+  bfd_error = system_call_error;
+
+  if (bfd_read ((PTR)longbuf, 1, sizeof (longbuf), abfd) != sizeof (longbuf))
+    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_error = no_memory;
+      return 0;
+    }
+
+  core = &mergem->internal_core;
+
+  if ((bfd_read ((PTR) core, 1, core_size, abfd)) != core_size)
+    {
+      bfd_error = system_call_error;
+      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_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 *
+DEFUN(aix386_core_file_failing_command,(abfd),
+      bfd *abfd)
+{
+  return core_hdr (abfd)->cd_comm;
+}
+
+static int
+DEFUN(aix386_core_file_failing_signal,(abfd),
+      bfd *abfd)
+{
+  return core_hdr (abfd)->cd_cursig;
+}
+
+static boolean
+DEFUN(aix386_core_file_matches_executable_p, (core_bfd, exec_bfd),
+      bfd *core_bfd AND
+      bfd *exec_bfd)
+{
+  return true;			/* FIXME, We have no way of telling at this
+				   point */
+}
+
+/* No archive file support via this BFD */
+#define	aix386_openr_next_archived_file	bfd_generic_openr_next_archived_file
+#define	aix386_generic_stat_arch_elt	bfd_generic_stat_arch_elt
+#define	aix386_slurp_armap			bfd_false
+#define	aix386_slurp_extended_name_table	bfd_true
+#define	aix386_write_armap			(PROTO (boolean, (*),	\
+     (bfd *arch, unsigned int elength, struct orl *map, \
+      unsigned int orl_count, int stridx))) bfd_false
+#define	aix386_truncate_arname		bfd_dont_truncate_arname
+
+#define	aix386_close_and_cleanup		bfd_generic_close_and_cleanup
+#define	aix386_set_section_contents		(PROTO(boolean, (*),	\
+         (bfd *abfd, asection *section, PTR data, file_ptr offset,	\
+         bfd_size_type count))) bfd_false
+#define	aix386_get_section_contents		bfd_generic_get_section_contents
+#define	aix386_new_section_hook		(PROTO (boolean, (*),	\
+	(bfd *, sec_ptr))) bfd_true
+#define	aix386_get_symtab_upper_bound	bfd_0u
+#define	aix386_get_symtab			(PROTO (unsigned int, (*), \
+        (bfd *, struct symbol_cache_entry **))) bfd_0u
+#define	aix386_get_reloc_upper_bound		(PROTO (unsigned int, (*), \
+	(bfd *, sec_ptr))) bfd_0u
+#define	aix386_canonicalize_reloc		(PROTO (unsigned int, (*), \
+	(bfd *, sec_ptr, arelent **, struct symbol_cache_entry**))) bfd_0u
+#define	aix386_make_empty_symbol		(PROTO (		\
+	struct symbol_cache_entry *, (*), (bfd *))) bfd_false
+#define	aix386_print_symbol			(PROTO (void, (*),	\
+	(bfd *, PTR, struct symbol_cache_entry  *,			\
+	 bfd_print_symbol_type))) bfd_false
+#define	aix386_get_symbol_info			(PROTO (void, (*),	\
+	(bfd *, struct symbol_cache_entry  *,			\
+	 symbol_info *))) bfd_false
+#define	aix386_get_lineno			(PROTO (alent *, (*),	\
+	(bfd *, struct symbol_cache_entry *))) bfd_nullvoidptr
+#define	aix386_set_arch_mach			(PROTO (boolean, (*),	\
+	(bfd *, enum bfd_architecture, unsigned long))) bfd_false
+#define	aix386_find_nearest_line		(PROTO (boolean, (*),	\
+        (bfd *abfd, struct sec  *section,				\
+         struct symbol_cache_entry  **symbols,bfd_vma offset,		\
+         CONST char **file, CONST char **func, unsigned int *line))) bfd_false
+#define	aix386_sizeof_headers		(PROTO (int, (*),	\
+	(bfd *, boolean))) bfd_0
+
+#define aix386_bfd_debug_info_start		bfd_void
+#define aix386_bfd_debug_info_end		bfd_void
+#define aix386_bfd_debug_info_accumulate	(PROTO (void, (*),	\
+	(bfd *, struct sec *))) bfd_void
+#define aix386_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
+#define aix386_bfd_relax_section bfd_generic_relax_section
+#define aix386_bfd_seclet_link \
+  ((boolean (*) PARAMS ((bfd *, PTR, boolean))) bfd_false)
+#define aix386_bfd_reloc_type_lookup \
+  ((CONST struct reloc_howto_struct *(*) PARAMS ((bfd *, bfd_reloc_code_real_type))) bfd_nullvoidptr)
+#define aix386_bfd_make_debug_symbol \
+  ((asymbol *(*) PARAMS ((bfd *, void *, unsigned long))) bfd_nullvoidptr)
+
+/* 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, (*), (         bfd_byte *))) swap_abort )
+#define NO_GETS ((PROTO(bfd_signed_vma, (*), (  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},
+    
+    JUMP_TABLE(aix386),
+    (PTR) 0
+};