From 5f0f4a3bc5e8f25e586b6983d6c8138a89aa030e Mon Sep 17 00:00:00 2001
From: Joseph Myers <joseph@codesourcery.com>
Date: Wed, 26 May 2010 14:40:53 +0100
Subject: diagnostic.c: Don't include opts.h.

	* diagnostic.c: Don't include opts.h.
	(permissive_error_option): Define.
	(diagnostic_initialize): Take n_opts parameter.  Allocate memory
	for classify_diagnostic.  Don't use memset for
	classify_diagnostic.  Initialize new and recently added fields.
	(diagnostic_classify_diagnostic): Use context->n_opts instead of
	N_OPTS.
	(diagnostic_report_diagnostic): Pass context parameter to
	diagnostic_report_warnings_p.  Use option_enabled and option_name
	hooks from context.
	(emit_diagnostic): Use permissive_error_option.
	(permerror): Likewise.
	* diagnostic.h: Don't include options.h.
	(struct diagnostic_context): Add n_opts, opt_permissive,
	inhibit_warnings, warn_system_headers, option_enabled and
	option_name fields.  Change classify_diagnostic to a pointer.
	* opts-diagnostic.h: New file.
	* opts.c: Include opts-diagnostic.h.
	(common_handle_option): Set global_dc fields for -Wfatal-errors,
	-Wsystem-headers, -fshow-column, -pedantic-errors and -w.
	(option_name): New function.
	* c-opts.c (c_common_init_options): Set global_dc->opt_permissive.
	(c_common_handle_option): Set global_dc->permissive for
	-fpermissive.
	* c-common.c (c_cpp_error): Save and restore
	global_dc->warn_system_headers, not variable warn_system_headers.
	* toplev.c: Include opts-diagnostic.h.
	(general_init): Update call to diagnostic_initialize.  Set
	global_dc->show_column, global_dc->option_enabled and
	global_dc->option_name.
	(process_options): Don't set global_dc fields here.
	* Makefile.in (DIAGNOSTIC_H): Remove options.h.
	(diagnostic.o, opts.o, toplev.o): Update dependencies.

fortran:
	* cpp.c (cb_cpp_error): Save and restore
	global_dc->warn_system_headers, not variable warn_system_headers.

From-SVN: r159869
---
 gcc/opts.c | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++-
 1 file changed, 53 insertions(+), 1 deletion(-)

(limited to 'gcc/opts.c')

diff --git a/gcc/opts.c b/gcc/opts.c
index 2e788d2..65121a4 100644
--- a/gcc/opts.c
+++ b/gcc/opts.c
@@ -36,6 +36,7 @@ along with GCC; see the file COPYING3.  If not see
 #include "toplev.h"
 #include "params.h"
 #include "diagnostic.h"
+#include "opts-diagnostic.h"
 #include "tm_p.h"		/* For OPTIMIZATION_OPTIONS.  */
 #include "insn-attr.h"		/* For INSN_SCHEDULING.  */
 #include "target.h"
@@ -1703,6 +1704,10 @@ common_handle_option (size_t scode, const char *arg, int value,
       warn_larger_than = value != -1;
       break;
 
+    case OPT_Wfatal_errors:
+      global_dc->fatal_errors = value;
+      break;
+
     case OPT_Wframe_larger_than_:
       frame_larger_than_size = value;
       warn_frame_larger_than = value != -1;
@@ -1726,6 +1731,10 @@ common_handle_option (size_t scode, const char *arg, int value,
       warn_strict_overflow = value;
       break;
 
+    case OPT_Wsystem_headers:
+      global_dc->warn_system_headers = value;
+      break;
+
     case OPT_Wunused:
       warn_unused = value;
       break;
@@ -1955,6 +1964,10 @@ common_handle_option (size_t scode, const char *arg, int value,
       flag_profile_values_set = true;
       break;
 
+    case OPT_fshow_column:
+      global_dc->show_column = value;
+      break;
+
     case OPT_fvisibility_:
       {
         if (!strcmp(arg, "default"))
@@ -2168,13 +2181,17 @@ common_handle_option (size_t scode, const char *arg, int value,
       break;
 
     case OPT_pedantic_errors:
-      flag_pedantic_errors = pedantic = 1;
+      global_dc->pedantic_errors = flag_pedantic_errors = pedantic = 1;
       break;
 
     case OPT_fwhopr:
       flag_whopr = value;
       break;
 
+    case OPT_w:
+      global_dc->inhibit_warnings = true;
+      break;
+
     case OPT_fsee:
     case OPT_fcse_skip_blocks:
     case OPT_floop_optimize:
@@ -2510,3 +2527,38 @@ enable_warning_as_error (const char *arg, int value, unsigned int lang_mask)
     }
   free (new_option);
 }
+
+/* Return malloced memory for the name of the option OPTION_INDEX
+   which enabled a diagnostic (context CONTEXT), originally of type
+   ORIG_DIAG_KIND but possibly converted to DIAG_KIND by options such
+   as -Werror.  */
+
+char *
+option_name (diagnostic_context *context, int option_index,
+	     diagnostic_t orig_diag_kind, diagnostic_t diag_kind)
+{
+  if (option_index)
+    {
+      /* A warning classified as an error.  */
+      if ((orig_diag_kind == DK_WARNING || orig_diag_kind == DK_PEDWARN)
+	  && diag_kind == DK_ERROR)
+	return concat (cl_options[OPT_Werror_].opt_text,
+		       /* Skip over "-W".  */
+		       cl_options[option_index].opt_text + 2,
+		       NULL);
+      /* A warning with option.  */
+      else
+	return xstrdup (cl_options[option_index].opt_text);
+    }
+  /* A warning without option classified as an error.  */
+  else if (orig_diag_kind == DK_WARNING || orig_diag_kind == DK_PEDWARN
+	   || diag_kind == DK_WARNING)
+    {
+      if (context->warning_as_error_requested)
+	return xstrdup (cl_options[OPT_Werror].opt_text);
+      else
+	return xstrdup (_("enabled by default"));
+    }
+  else
+    return NULL;
+}
-- 
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