1 files changed, 134 insertions, 0 deletions
diff --git a/contrib/gdb/gdb/coff-solib.c b/contrib/gdb/gdb/coff-solib.c
new file mode 100644
index 0000000..64dca7b
--- /dev/null
+++ b/contrib/gdb/gdb/coff-solib.c
@@ -0,0 +1,134 @@
+/* Handle COFF SVR3 shared libraries for GDB, the GNU Debugger.
+   Copyright 1993, 1994, 1998, 1999, 2000 Free Software Foundation, Inc.
+
+   This file is part of GDB.
+
+   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 "defs.h"
+
+#include "frame.h"
+#include "bfd.h"
+#include "gdbcore.h"
+#include "symtab.h"
+#include "symfile.h"
+#include "objfiles.h"
+
+/*
+
+   GLOBAL FUNCTION
+
+   coff_solib_add -- add a shared library files to the symtab list.  We
+   examine the `.lib' section of the exec file and determine the names of
+   the shared libraries.
+
+   This function is responsible for discovering those names and
+   addresses, and saving sufficient information about them to allow
+   their symbols to be read at a later time.
+
+   SYNOPSIS
+
+   void coff_solib_add (char *arg_string, int from_tty,
+   struct target_ops *target, int readsyms)
+
+   DESCRIPTION
+
+ */
+
+void
+coff_solib_add (char *arg_string, int from_tty, struct target_ops *target, int readsyms)
+{
+  asection *libsect;
+
+  if (!readsyms)
+    return;
+
+  libsect = bfd_get_section_by_name (exec_bfd, ".lib");
+
+  if (libsect)
+    {
+      int libsize;
+      unsigned char *lib;
+      struct libent
+	{
+	  bfd_byte len[4];
+	  bfd_byte nameoffset[4];
+	};
+
+      libsize = bfd_section_size (exec_bfd, libsect);
+
+      lib = (unsigned char *) alloca (libsize);
+
+      bfd_get_section_contents (exec_bfd, libsect, lib, 0, libsize);
+
+      while (libsize > 0)
+	{
+	  struct libent *ent;
+	  struct objfile *objfile;
+	  int len, nameoffset;
+	  char *filename;
+
+	  ent = (struct libent *) lib;
+
+	  len = bfd_get_32 (exec_bfd, ent->len);
+
+	  nameoffset = bfd_get_32 (exec_bfd, ent->nameoffset);
+
+	  if (len <= 0)
+	    break;
+
+	  filename = (char *) ent + nameoffset * 4;
+
+	  objfile = symbol_file_add (filename, from_tty,
+				     NULL,	/* no offsets */
+				     0,		/* not mainline */
+				     OBJF_SHARED);	/* flags */
+
+	  libsize -= len * 4;
+	  lib += len * 4;
+	}
+
+      /* Getting new symbols may change our opinion about what is
+         frameless.  */
+      reinit_frame_cache ();
+    }
+}
+
+/*
+
+   GLOBAL FUNCTION
+
+   coff_solib_create_inferior_hook -- shared library startup support
+
+   SYNOPSIS
+
+   void coff_solib_create_inferior_hook()
+
+   DESCRIPTION
+
+   When gdb starts up the inferior, the kernel maps in the shared
+   libraries.  We get here with the target stopped at it's first
+   instruction, and the libraries already mapped.  At this      point, this
+   function gets called via expansion of the macro
+   SOLIB_CREATE_INFERIOR_HOOK.
+ */
+
+void
+coff_solib_create_inferior_hook (void)
+{
+  coff_solib_add ((char *) 0, 0, (struct target_ops *) 0, auto_solib_add);
+}