gcc/gcc45-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.
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--- gcc/langhooks.h.jj 2010-06-30 09:48:30.000000000 +0200
+++ gcc/langhooks.h 2010-07-01 16:15:22.432616871 +0200
@@ -454,6 +454,10 @@ struct lang_hooks
is enabled. */
bool eh_use_cxa_end_cleanup;
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+ /* 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. */
};
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--- gcc/langhooks-def.h.jj 2010-06-30 09:48:30.000000000 +0200
+++ gcc/langhooks-def.h 2010-07-01 16:16:07.427460761 +0200
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@@ -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>
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@@ -111,6 +111,7 @@ extern void lhd_omp_firstprivatize_type_
#define LANG_HOOKS_EH_PERSONALITY lhd_gcc_personality
#define LANG_HOOKS_EH_RUNTIME_TYPE lhd_pass_through_t
#define LANG_HOOKS_EH_USE_CXA_END_CLEANUP false
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+#define LANG_HOOKS_SOURCE_LANGUAGE NULL
/* Attribute hooks. */
#define LANG_HOOKS_ATTRIBUTE_TABLE NULL
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@@ -301,6 +302,7 @@ extern void lhd_end_section (void);
LANG_HOOKS_EH_PERSONALITY, \
LANG_HOOKS_EH_RUNTIME_TYPE, \
LANG_HOOKS_EH_USE_CXA_END_CLEANUP, \
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+ LANG_HOOKS_SOURCE_LANGUAGE, \
}
#endif /* GCC_LANG_HOOKS_DEF_H */
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--- gcc/c-lang.c.jj 2010-06-30 09:48:30.000000000 +0200
+++ gcc/c-lang.c 2010-07-01 16:14:25.396197804 +0200
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@@ -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. */
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struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
--- gcc/dwarf2out.c.jj 2010-07-01 14:07:41.000000000 +0200
+++ gcc/dwarf2out.c 2010-07-01 16:13:24.597354717 +0200
@@ -17150,9 +17150,18 @@ add_bit_size_attribute (dw_die_ref die,
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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
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@@ -19246,6 +19255,10 @@ gen_compile_unit_die (const char *filena
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language = DW_LANG_ObjC;
else if (strcmp (language_string, "GNU Objective-C++") == 0)
language = DW_LANG_ObjC_plus_plus;
+ else if (strcmp (language_string, "GNU C") == 0
+ && lang_hooks.source_language
+ && lang_hooks.source_language () >= 1999)
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+ language = DW_LANG_C99;
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}
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add_AT_unsigned (die, DW_AT_language, language);