c-opts.c (c_common_parse_file): Only start/end main source file if debug hooks…

c-opts.c (c_common_parse_file): Only start/end main source file if debug hooks says the writer wants it.

2005-03-22  Daniel Berlin  <dberlin@dberlin.org>

	* c-opts.c (c_common_parse_file): Only start/end main source file
	if debug hooks says the writer wants it.
	* dbxout.c (dbx_debug_hooks): Add start_end_main_source_file
	member.
	(xcoff_debug_hooks): Ditto.
	* debug.c (do_nothing_hooks): Ditto.
	* debug.h (gcc_debug_hooks): Ditto.
	* dwarf2out.c (dwarf2_debug_hooks): Ditto.
	* sdbout.c (sdb_debug_hooks): Ditto.
	* vmsdbgout.c (vmsdbg_debug_hooks): Ditto.

From-SVN: r96902

gcc/ChangeLog

+2005-03-22  Daniel Berlin  <dberlin@dberlin.org>
+
+	* c-opts.c (c_common_parse_file): Only start/end main source file
+	if debug hooks says the writer wants it.
+	* dbxout.c (dbx_debug_hooks): Add start_end_main_source_file
+	member.
+	(xcoff_debug_hooks): Ditto.
+	* debug.c (do_nothing_hooks): Ditto.
+	* debug.h (gcc_debug_hooks): Ditto.
+	* dwarf2out.c (dwarf2_debug_hooks): Ditto.
+	* sdbout.c (sdb_debug_hooks): Ditto.
+	* vmsdbgout.c (vmsdbg_debug_hooks): Ditto.
+	
 2005-03-22  Mark Mitchell  <mark@codesourcery.com>
 
 	* doc/extend.texi: Deprecate C++ min/max operators.

gcc/c-opts.c

@@ -1102,16 +1102,18 @@ c_common_parse_file (int set_yydebug)
   i = 0;
   for (;;)
     {
-      /* Start the main input file */
-      (*debug_hooks->start_source_file) (0, this_input_filename);
+      /* Start the main input file, if the debug writer wants it. */
+      if (debug_hooks->start_end_main_source_file)
+	(*debug_hooks->start_source_file) (0, this_input_filename);
       finish_options ();
       pch_init ();
       push_file_scope ();
       c_parse_file ();
       finish_file ();
       pop_file_scope ();
-      /* And end the main input file.  */
-      (*debug_hooks->end_source_file) (0);
+      /* And end the main input file, if the debug writer wants it  */
+      if (debug_hooks->start_end_main_source_file)
+	(*debug_hooks->end_source_file) (0);
       if (++i >= num_in_fnames)
 	break;
       cpp_undef_all (parse_in);

gcc/dbxout.c

@@ -378,7 +378,8 @@ const struct gcc_debug_hooks dbx_debug_hooks =
   debug_nothing_tree,		         /* outlining_inline_function */
   debug_nothing_rtx,		         /* label */
   dbxout_handle_pch,		         /* handle_pch */
-  debug_nothing_rtx		         /* var_location */
+  debug_nothing_rtx,		         /* var_location */
+  0                                      /* start_end_main_source_file */
 };
 #endif /* DBX_DEBUGGING_INFO  */
 
@@ -408,7 +409,8 @@ const struct gcc_debug_hooks xcoff_debug_hooks =
   debug_nothing_tree,		         /* outlining_inline_function */
   debug_nothing_rtx,		         /* label */
   dbxout_handle_pch,		         /* handle_pch */
-  debug_nothing_rtx		         /* var_location */
+  debug_nothing_rtx,		         /* var_location */
+  0                                      /* start_end_main_source_file */
 };
 #endif /* XCOFF_DEBUGGING_INFO  */
 

gcc/debug.c

@@ -47,7 +47,8 @@ const struct gcc_debug_hooks do_nothing_debug_hooks =
   debug_nothing_tree,		         /* outlining_inline_function */
   debug_nothing_rtx,		         /* label */
   debug_nothing_int,		         /* handle_pch */
-  debug_nothing_rtx		         /* var_location */
+  debug_nothing_rtx,		         /* var_location */
+  0                                      /* start_end_main_source_file */
 };
 
 /* This file contains implementations of each debug hook that do

gcc/debug.h

@@ -119,6 +119,10 @@ struct gcc_debug_hooks
 
   /* Called from final_scan_insn for any NOTE_INSN_VAR_LOCATION note.  */
   void (* var_location) (rtx);
+
+  /* This is 1 if the debug writer wants to see start and end commands for the
+     main source files, and 0 otherwise.  */
+  int start_end_main_source_file;
 };
 
 extern const struct gcc_debug_hooks *debug_hooks;

gcc/dwarf2out.c

@@ -3444,7 +3444,8 @@ const struct gcc_debug_hooks dwarf2_debug_hooks =
   dwarf2out_abstract_function,	/* outlining_inline_function */
   debug_nothing_rtx,		/* label */
   debug_nothing_int,		/* handle_pch */
-  dwarf2out_var_location
+  dwarf2out_var_location,
+  1                             /* start_end_main_source_file */
 };
 #endif
 

gcc/sdbout.c

@@ -335,7 +335,8 @@ const struct gcc_debug_hooks sdb_debug_hooks =
   debug_nothing_tree,		         /* outlining_inline_function */
   sdbout_label,			         /* label */
   debug_nothing_int,		         /* handle_pch */
-  debug_nothing_rtx		         /* var_location */
+  debug_nothing_rtx,		         /* var_location */
+  0                                      /* start_end_main_source_file */
 };
 
 /* Return a unique string to name an anonymous type.  */

gcc/vmsdbgout.c

@@ -209,7 +209,8 @@ const struct gcc_debug_hooks vmsdbg_debug_hooks
    vmsdbgout_abstract_function,
    debug_nothing_rtx,		  /* label */
    debug_nothing_int,		  /* handle_pch */
-   debug_nothing_rtx		  /* var_location */
+   debug_nothing_rtx,		  /* var_location */
+   0                              /* start_end_main_source_file */
 };
 
 /* Definitions of defaults for assembler-dependent names of various