gcc/gcc44-pr38757.patch

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2009-03-19 16:53:24 +00:00
2009-03-18 Jakub Jelinek <jakub@redhat.com>
PR debug/38757
* langhooks.h (struct lang_hooks): Add source_language langhook.
* langhooks-def.h (LANG_HOOKS_SOURCE_LANGUAGE): Define to NULL.
(LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_SOURCE_LANGUAGE.
* c-lang.c (c_source_language): New function.
(LANG_HOOKS_SOURCE_LANGUAGE): Define.
* dwarf2out.c (add_prototyped_attribute): Add DW_AT_prototype
also for DW_LANG_{C,C99,ObjC}.
(gen_compile_unit_die): Use lang_hooks.source_language () to
determine if DW_LANG_C99 or DW_LANG_C89 should be returned.
--- gcc/langhooks.h.jj 2009-03-02 09:45:47.000000000 +0100
+++ gcc/langhooks.h 2009-03-18 12:53:24.000000000 +0100
@@ -1,5 +1,5 @@
/* The lang_hooks data structure.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
@@ -414,6 +414,10 @@ struct lang_hooks
if in the process TREE_CONSTANT or TREE_SIDE_EFFECTS need updating. */
tree (*expr_to_decl) (tree expr, bool *tc, bool *se);
+ /* Return year of the source language standard version if the FE supports
+ multiple versions of the standard. */
+ int (*source_language) (void);
+
/* Whenever you add entries here, make sure you adjust langhooks-def.h
and langhooks.c accordingly. */
};
--- gcc/langhooks-def.h.jj 2009-03-02 09:45:47.000000000 +0100
+++ gcc/langhooks-def.h 2009-03-18 12:53:45.000000000 +0100
@@ -1,5 +1,5 @@
/* Default macros to initialize the lang_hooks data structure.
- Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008
+ Copyright 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009
Free Software Foundation, Inc.
Contributed by Alexandre Oliva <aoliva@redhat.com>
@@ -113,6 +113,7 @@ extern void lhd_omp_firstprivatize_type_
#define LANG_HOOKS_EXPR_TO_DECL lhd_expr_to_decl
#define LANG_HOOKS_TO_TARGET_CHARSET lhd_to_target_charset
#define LANG_HOOKS_INIT_TS lhd_do_nothing
+#define LANG_HOOKS_SOURCE_LANGUAGE NULL
/* Attribute hooks. */
#define LANG_HOOKS_ATTRIBUTE_TABLE NULL
@@ -270,6 +271,7 @@ extern tree lhd_make_node (enum tree_cod
LANG_HOOKS_BUILTIN_FUNCTION_EXT_SCOPE, \
LANG_HOOKS_INIT_TS, \
LANG_HOOKS_EXPR_TO_DECL, \
+ LANG_HOOKS_SOURCE_LANGUAGE, \
}
#endif /* GCC_LANG_HOOKS_DEF_H */
--- gcc/c-lang.c.jj 2009-02-20 15:06:14.000000000 +0100
+++ gcc/c-lang.c 2009-03-18 13:33:41.000000000 +0100
@@ -1,6 +1,6 @@
/* Language-specific hook definitions for C front end.
Copyright (C) 1991, 1995, 1997, 1998,
- 1999, 2000, 2001, 2003, 2004, 2005, 2007, 2008
+ 1999, 2000, 2001, 2003, 2004, 2005, 2007, 2008, 2009
Free Software Foundation, Inc.
This file is part of GCC.
@@ -37,6 +37,12 @@ along with GCC; see the file COPYING3.
enum c_language_kind c_language = clk_c;
+static int
+c_source_language (void)
+{
+ return flag_isoc99 ? 1999 : 1989;
+}
+
/* Lang hooks common to C and ObjC are declared in c-objc-common.h;
consequently, there should be very few hooks below. */
@@ -44,6 +50,8 @@ enum c_language_kind c_language = clk_c;
#define LANG_HOOKS_NAME "GNU C"
#undef LANG_HOOKS_INIT
#define LANG_HOOKS_INIT c_objc_common_init
+#undef LANG_HOOKS_SOURCE_LANGUAGE
+#define LANG_HOOKS_SOURCE_LANGUAGE c_source_language
/* Each front end provides its own lang hook initializer. */
const struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
--- gcc/dwarf2out.c.jj 2009-03-17 13:06:29.000000000 +0100
+++ gcc/dwarf2out.c 2009-03-18 12:55:36.000000000 +0100
@@ -12470,9 +12470,18 @@ add_bit_size_attribute (dw_die_ref die,
static inline void
add_prototyped_attribute (dw_die_ref die, tree func_type)
{
- if (get_AT_unsigned (comp_unit_die, DW_AT_language) == DW_LANG_C89
- && TYPE_ARG_TYPES (func_type) != NULL)
- add_AT_flag (die, DW_AT_prototyped, 1);
+ switch (get_AT_unsigned (comp_unit_die, DW_AT_language))
+ {
+ case DW_LANG_C:
+ case DW_LANG_C89:
+ case DW_LANG_C99:
+ case DW_LANG_ObjC:
+ if (TYPE_ARG_TYPES (func_type) != NULL)
+ add_AT_flag (die, DW_AT_prototyped, 1);
+ break;
+ default:
+ break;
+ }
}
/* Add an 'abstract_origin' attribute below a given DIE. The DIE is found
@@ -14419,7 +14428,13 @@ gen_compile_unit_die (const char *filena
else if (strcmp (language_string, "GNU Objective-C++") == 0)
language = DW_LANG_ObjC_plus_plus;
else
- language = DW_LANG_C89;
+ {
+ if (lang_hooks.source_language
+ && lang_hooks.source_language () >= 1999)
+ language = DW_LANG_C99;
+ else
+ language = DW_LANG_C89;
+ }
add_AT_unsigned (die, DW_AT_language, language);
return die;