Various fixes to improve C++ debugging. See ChangeLog.

1 files changed, 63 insertions, 0 deletions

diff --git a/gdb/gcc.patch b/gdb/gcc.patch
new file mode 100644
index 0000000..1317d1b
--- /dev/null
+++ b/gdb/gcc.patch
@@ -0,0 +1,63 @@
+Recent versions of gcc have had a bug in how they emit debugging
+information for C++ methods (when using dbx-style stabs).
+This patch should fix the problem.  Fix you can't fix gcc,
+you can alternatively define GCC_MANGLE_BUG when compling gdb/symtab.c.
+
+===================================================================
+RCS file: /rel/cvsfiles/devo/gcc/dbxout.c,v
+retrieving revision 1.53
+diff -c -r1.53 dbxout.c
+*** 1.53	1992/07/05 09:50:22
+--- dbxout.c	1992/07/09 07:00:33
+***************
+*** 683,688 ****
+--- 683,689 ----
+    tree type_encoding;
+    register tree fndecl;
+    register tree last;
++   char formatted_type_identifier_length[16];
+    register int type_identifier_length;
+  
+    if (methods == NULL_TREE)
+***************
+*** 711,716 ****
+--- 712,719 ----
+  
+    type_identifier_length = IDENTIFIER_LENGTH (type_encoding);
+  
++   sprintf(formatted_type_identifier_length, "%d", type_identifier_length);
++ 
+    if (TREE_CODE (methods) == FUNCTION_DECL)
+      fndecl = methods;
+    else if (TREE_VEC_ELT (methods, 0) != NULL_TREE)
+***************
+*** 754,762 ****
+--- 757,769 ----
+  		  if (debug_name[0] == '_' && debug_name[1] == '_')
+  		    {
+  		      char *method_name = debug_name + 2;
++ 		      char *length_ptr = formatted_type_identifier_length;
+  		      /* Get past const and volatile qualifiers.  */
+  		      while (*method_name == 'C' || *method_name == 'V')
+  			method_name++;
++ 		      /* Skip digits for length of type_encoding. */
++ 		      while (*method_name == *length_ptr && *length_ptr)
++ 			  length_ptr++, method_name++;
+  		      if (! strncmp (method_name,
+  				     IDENTIFIER_POINTER (type_encoding),
+  				     type_identifier_length))
+***************
+*** 768,775 ****
+--- 775,786 ----
+  	      else if (debug_name[0] == '_' && debug_name[1] == '_')
+  		{
+  		  char *ctor_name = debug_name + 2;
++ 		  char *length_ptr = formatted_type_identifier_length;
+  		  while (*ctor_name == 'C' || *ctor_name == 'V')
+  		    ctor_name++;
++ 		  /* Skip digits for length of type_encoding. */
++ 		  while (*ctor_name == *length_ptr && *length_ptr)
++ 		      length_ptr++, ctor_name++;
+  		  if (!strncmp (IDENTIFIER_POINTER (type_encoding), ctor_name,
+  				type_identifier_length))
+  		    debug_name = ctor_name + type_identifier_length;