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107 lines
3.8 KiB
107 lines
3.8 KiB
3 years ago
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2009-03-18 Jakub Jelinek <jakub@redhat.com>
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PR debug/38757
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* langhooks.h (struct lang_hooks): Add source_language langhook.
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* langhooks-def.h (LANG_HOOKS_SOURCE_LANGUAGE): Define to NULL.
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(LANG_HOOKS_INITIALIZER): Add LANG_HOOKS_SOURCE_LANGUAGE.
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* dwarf2out.c (add_prototyped_attribute): Add DW_AT_prototype
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also for DW_LANG_{C,C99,ObjC}.
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(gen_compile_unit_die): Use lang_hooks.source_language () to
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determine if DW_LANG_C99 or DW_LANG_C89 should be returned.
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c/
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* c-lang.c (c_source_language): New function.
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(LANG_HOOKS_SOURCE_LANGUAGE): Define.
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--- gcc/langhooks.h.jj 2011-01-03 12:53:05.125745450 +0100
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+++ gcc/langhooks.h 2011-01-04 17:59:43.166744926 +0100
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@@ -467,6 +467,10 @@ struct lang_hooks
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gimplification. */
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bool deep_unsharing;
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+ /* Return year of the source language standard version if the FE supports
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+ multiple versions of the standard. */
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+ int (*source_language) (void);
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+
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/* Whenever you add entries here, make sure you adjust langhooks-def.h
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and langhooks.c accordingly. */
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};
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--- gcc/langhooks-def.h.jj 2011-01-03 12:53:05.000000000 +0100
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+++ gcc/langhooks-def.h 2011-01-04 18:00:44.858851030 +0100
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@@ -118,6 +118,7 @@ extern void lhd_omp_firstprivatize_type_
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#define LANG_HOOKS_BLOCK_MAY_FALLTHRU hook_bool_const_tree_true
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#define LANG_HOOKS_EH_USE_CXA_END_CLEANUP false
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#define LANG_HOOKS_DEEP_UNSHARING false
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+#define LANG_HOOKS_SOURCE_LANGUAGE NULL
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/* Attribute hooks. */
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#define LANG_HOOKS_ATTRIBUTE_TABLE NULL
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@@ -303,7 +304,8 @@ extern void lhd_end_section (void);
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LANG_HOOKS_EH_PROTECT_CLEANUP_ACTIONS, \
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LANG_HOOKS_BLOCK_MAY_FALLTHRU, \
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LANG_HOOKS_EH_USE_CXA_END_CLEANUP, \
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- LANG_HOOKS_DEEP_UNSHARING \
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+ LANG_HOOKS_DEEP_UNSHARING, \
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+ LANG_HOOKS_SOURCE_LANGUAGE \
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}
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#endif /* GCC_LANG_HOOKS_DEF_H */
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--- gcc/c/c-lang.c.jj 2011-01-03 12:53:05.376056936 +0100
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+++ gcc/c/c-lang.c 2011-01-04 17:59:43.167743798 +0100
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@@ -36,6 +36,12 @@ along with GCC; see the file COPYING3.
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enum c_language_kind c_language = clk_c;
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+static int
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+c_source_language (void)
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+{
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+ return flag_isoc99 ? 1999 : 1989;
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+}
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+
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/* Lang hooks common to C and ObjC are declared in c-objc-common.h;
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consequently, there should be very few hooks below. */
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@@ -45,6 +51,8 @@ enum c_language_kind c_language = clk_c;
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#define LANG_HOOKS_INIT c_objc_common_init
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#undef LANG_HOOKS_INIT_TS
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#define LANG_HOOKS_INIT_TS c_common_init_ts
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+#undef LANG_HOOKS_SOURCE_LANGUAGE
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+#define LANG_HOOKS_SOURCE_LANGUAGE c_source_language
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/* Each front end provides its own lang hook initializer. */
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struct lang_hooks lang_hooks = LANG_HOOKS_INITIALIZER;
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--- gcc/dwarf2out.c.jj 2011-01-03 12:53:05.102056475 +0100
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+++ gcc/dwarf2out.c 2011-01-04 18:03:14.534151763 +0100
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@@ -16109,9 +16109,18 @@ add_bit_size_attribute (dw_die_ref die,
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static inline void
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add_prototyped_attribute (dw_die_ref die, tree func_type)
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{
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- if (get_AT_unsigned (comp_unit_die (), DW_AT_language) == DW_LANG_C89
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- && prototype_p (func_type))
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- add_AT_flag (die, DW_AT_prototyped, 1);
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+ switch (get_AT_unsigned (comp_unit_die (), DW_AT_language))
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+ {
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+ case DW_LANG_C:
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+ case DW_LANG_C89:
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+ case DW_LANG_C99:
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+ case DW_LANG_ObjC:
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+ if (prototype_p (func_type))
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+ add_AT_flag (die, DW_AT_prototyped, 1);
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+ break;
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+ default:
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+ break;
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+ }
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}
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/* Add an 'abstract_origin' attribute below a given DIE. The DIE is found
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@@ -18915,6 +18924,10 @@ gen_compile_unit_die (const char *filena
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if (strcmp (language_string, "GNU Go") == 0)
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language = DW_LANG_Go;
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}
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+ else if (strcmp (language_string, "GNU C") == 0
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+ && lang_hooks.source_language
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+ && lang_hooks.source_language () >= 1999)
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+ language = DW_LANG_C99;
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}
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/* Use a degraded Fortran setting in strict DWARF2 so is_fortran works. */
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else if (strcmp (language_string, "GNU Fortran") == 0)
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