[PATCH] Fix a cygwin SEGV when reading ntdll.dll

[Christopher Faylor <cgf at redhat dot com>]

The Cygwin version of gdb had a typo which caused a SEGV when
reading certain DLLs.  The below patch fixes that.

cgf

2003-07-06  Christopher Faylor  <cgf@redhat.com>

	* win32-nat.c (solib_symbols_add): Use one variable for all section
	address stuff.  Pass variable rather than address of variable to
	safe_symbol_file_add.

Index: win32-nat.c
===================================================================
RCS file: /cvs/uberbaum/gdb/win32-nat.c,v
retrieving revision 1.76
diff -u -p -w -r1.76 win32-nat.c
--- win32-nat.c	11 Jun 2003 22:36:04 -0000	1.76
+++ win32-nat.c	6 Jul 2003 19:45:17 -0000
@@ -802,7 +802,7 @@ get_relocated_section_addrs (bfd *abfd, 
 static struct objfile *
 solib_symbols_add (char *name, int from_tty, CORE_ADDR load_addr)
 {
-  struct section_addr_info *section_addrs_ptr = NULL;
+  struct section_addr_info *addrs = NULL;
   static struct objfile *result = NULL;
   bfd *abfd = NULL;
 
@@ -825,33 +825,28 @@ solib_symbols_add (char *name, int from_
     {
       if (bfd_check_format (abfd, bfd_object))
 	{
-	  section_addrs_ptr = get_relocated_section_addrs (abfd, load_addr);
+	  addrs = get_relocated_section_addrs (abfd, load_addr);
 	}
 
       bfd_close (abfd);
     }
 
-  if (section_addrs_ptr)
+  if (addrs)
     {
-      result = safe_symbol_file_add (name, from_tty, section_addrs_ptr,
-				     0, OBJF_SHARED);
-
-      free_section_addr_info (section_addrs_ptr);
+      result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED);
+      free_section_addr_info (addrs);
     }
-
   else
     {
       /* Fallback on handling just the .text section. */
-      struct section_addr_info *section_addrs;
       struct cleanup *my_cleanups;
 
-      section_addrs = alloc_section_addr_info (1);
-      my_cleanups = make_cleanup (xfree, section_addrs);
-      section_addrs->other[0].name = ".text";
-      section_addrs->other[0].addr = load_addr;
+      addrs = alloc_section_addr_info (1);
+      my_cleanups = make_cleanup (xfree, addrs);
+      addrs->other[0].name = ".text";
+      addrs->other[0].addr = load_addr;
 
-      result = safe_symbol_file_add (name, from_tty, &section_addrs,
-				     0, OBJF_SHARED);
+      result = safe_symbol_file_add (name, from_tty, addrs, 0, OBJF_SHARED);
       do_cleanups (my_cleanups);
     }