Initial revision

1 files changed, 159 insertions, 0 deletions

diff --git a/bfd/trad-core.c b/bfd/trad-core.c
new file mode 100644
index 0000000..dadfd14
--- /dev/null
+++ b/bfd/trad-core.c
@@ -0,0 +1,159 @@
+/* BFD back end for traditional Unix core files (U-area and sections, raw)
+   Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.  */
+
+/* This file does not define a particular back-end, but it defines routines
+   that can be used by other back-ends.  */
+
+#include "bfd.h"
+#include <stdio.h>
+#include "libbfd.h"
+
+#include "liba.out.h"           /* BFD a.out internal data structures */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/dir.h>
+#include <signal.h>
+#include <machine/reg.h>
+
+#include <sys/user.h>		/* After a.out.h  */
+#include <sys/file.h>
+#include <sys/stat.h>
+
+#include <errno.h>
+
+/* need this cast b/c ptr is really void * */
+#define core_hdr(bfd) (((struct core_data *) (bfd->tdata))->hdr)
+#define core_datasec(bfd) (((struct core_data *) ((bfd)->tdata))->data_section)
+#define core_stacksec(bfd) (((struct core_data*)((bfd)->tdata))->stack_section)
+#define core_regsec(bfd) (((struct core_data *) ((bfd)->tdata))->reg_section)
+#define core_upage(bfd) (((struct core_data *) ((bfd)->tdata))->upage)
+
+/* These are stored in the bfd's tdata */
+struct core_data {
+  struct user *upage;             /* core file header */
+  asection *data_section;
+  asection *stack_section;
+  asection *reg_section;
+};
+
+bfd_target *
+trad_unix_core_file_p (abfd)
+     bfd *abfd;
+{
+#if HOST_SYS == SUN_SYS
+  return 0;
+#else
+  int val;
+  char *rawptr;
+  struct user u;
+  unsigned int reg_offset, fp_reg_offset;
+
+  /* 4.2-style (and perhaps also sysV-style) core dump file.  */
+
+  val = bfd_read ((void *)&u, 1, sizeof u, abfd);
+  if (val != sizeof u)
+    return 0;			/* Too small to be a core file */
+
+  /* Sanity check perhaps??? */
+  if (u.u_dsize > 0x1000000)	/* Remember, it's in pages... */
+    return 0;
+  if (u.u_ssize > 0x1000000)
+    return 0;
+  /* Check that the size claimed is no greater than the file size. FIXME. */
+
+  /* OK, we believe you.  You're a core file (sure, sure).  */
+
+  /* Allocate both the upage and the struct core_data at once, so
+     a single free() will free them both.  */
+  rawptr = (char *)zalloc (sizeof (u) + sizeof (struct core_data));
+  if (rawptr == NULL) {
+    bfd_error = no_memory;
+    return 0;
+  }
+  
+  set_tdata (abfd, (struct core_data *)rawptr);
+  core_upage (abfd) = (struct user *)(rawptr + sizeof (struct core_data));
+  *core_upage (abfd) = u;		/* Save that upage! */
+
+  /* create the sections.  This is raunchy, but bfd_close wants to reclaim
+     them */
+  core_stacksec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_stacksec (abfd) == NULL) {
+loser:
+    bfd_error = no_memory;
+    free ((void *)rawptr);
+    return 0;
+  }
+  core_datasec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_datasec (abfd) == NULL) {
+loser1:
+    free ((void *)core_stacksec (abfd));
+    goto loser;
+  }
+  core_regsec (abfd) = (asection *) zalloc (sizeof (asection));
+  if (core_regsec (abfd) == NULL) {
+loser2:
+    free ((void *)core_datasec (abfd));
+    goto loser1;
+  }
+
+  core_stacksec (abfd)->name = ".stack";
+  core_datasec (abfd)->name = ".data";
+  core_regsec (abfd)->name = ".reg";
+
+  core_stacksec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
+  core_datasec (abfd)->flags = SEC_ALLOC + SEC_LOAD;
+  core_regsec (abfd)->flags = SEC_ALLOC;
+
+  core_datasec (abfd)->size =  NBPG * u.u_dsize;
+  core_stacksec (abfd)->size = NBPG * u.u_ssize;
+  core_regsec (abfd)->size = NBPG * UPAGES;  /* Larger than sizeof struct u */
+
+  /* What a hack... we'd like to steal it from the exec file,
+     since the upage does not seem to provide it.  FIXME.  */
+  core_datasec (abfd)->vma = TEXT_START_ADDR + (NBPG * u.u_tsize);
+  core_stacksec (abfd)->vma = STACK_END_ADDR - (NBPG * u.u_ssize);
+  core_regsec (abfd)->vma = -1;
+
+  core_datasec (abfd)->filepos = NBPG * UPAGES;
+  core_stacksec (abfd)->filepos = (NBPG * UPAGES) + NBPG * u.u_dsize;
+  core_regsec (abfd)->filepos = 0;	/* Register segment is the upage */
+
+  /* Align to word at least */
+  core_stacksec (abfd)->alignment_power = 2;
+  core_datasec (abfd)->alignment_power = 2;
+  core_regsec (abfd)->alignment_power = 2;
+
+  abfd->sections = core_stacksec (abfd);
+  core_stacksec (abfd)->next = core_datasec (abfd);
+  core_datasec (abfd)->next = core_regsec (abfd);
+  abfd->section_count = 3;
+
+  return abfd->xvec;
+#endif
+}
+
+char *
+trad_unix_core_file_failing_command (abfd)
+     bfd *abfd;
+{
+  if (*core_upage (abfd)->u_comm)
+    return core_upage (abfd)->u_comm;
+  else
+    return 0;
+}
+
+int
+trad_unix_core_file_failing_signal (abfd)
+     bfd *abfd;
+{
+  return -1;		/* FIXME, where is it? */
+}
+
+boolean
+trad_unix_core_file_matches_executable_p  (core_bfd, exec_bfd)
+     bfd *core_bfd, *exec_bfd;
+{
+  return true;		/* FIXME, We have no way of telling at this point */
+}