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| author | Mark Wielaard <mjw@redhat.com> | 2014-11-21 16:00:06 +0000 |
|---|---|---|
| committer | Mark Wielaard <mark@gcc.gnu.org> | 2014-11-21 16:00:06 +0000 |
| commit | dcc9706615ef48df3c0bfa8a44b29bba52563f3e (patch) | |
| tree | c8584e5b3baab5f7a57b97d1119bfefc9b0fe7da /gcc/langhooks.c | |
| parent | 9c3bca1143bb406aa359e68ab9e2e7bbdb2f694c (diff) | |
| download | gcc-dcc9706615ef48df3c0bfa8a44b29bba52563f3e.tar.gz | |
PR debug/38757 gcc does not emit DW_LANG_C99.
For C and C++ add the language standard version in use to lang_hooks.name.
Change users of lang_hook.name to check with new functions lang_GNU_C or
lang_GNU_CXX. In dwarf2out.c output the DW_LANG_C version from the
lang_hooks.name and merge any LTO TRANSLATION_UNIT_LANGUAGE found. Adds
two testcases to dwarf2.exp to check the right DWARF DW_AT_language is set
on the compile_unit depending on the -std=c89 or -std=c99 setting.
gcc/c-family/ChangeLog
PR debug/38757
* c-opts.c (set_std_c89): Set lang_hooks.name.
(set_std_c99): Likewise.
(set_std_c11): Likewise.
(set_std_cxx98): Likewise.
(set_std_cxx11): Likewise.
(set_std_cxx14): Likewise.
(set_std_cxx1z): Likewise.
gcc/ChangeLog
PR debug/38757
* config/avr/avr-c.c (avr_cpu_cpp_builtins): Use lang_GNU_C.
* config/darwin.c (darwin_file_end): Use lang_GNU_CXX.
(darwin_override_options): Likewise.
* config/ia64/ia64.c (ia64_struct_retval_addr_is_first_parm_p):
Likewise.
* config/rs6000/rs6000.c (rs6000_output_function_epilogue):
Likewise.
* dbxout.c (get_lang_number): Likewise.
(dbxout_type): Likewise.
(dbxout_symbol_location): Likewise.
* dwarf2out.c (add_prototyped_attribute): Add DW_AT_prototype
also for DW_LANG_{C,C99,ObjC}.
(highest_c_language): New function.
(gen_compile_unit_die): Call highest_c_language to merge LTO
TRANSLATION_UNIT_LANGUAGE. Use strncmp language_string to
determine if DW_LANG_C99 or DW_LANG_C89 should be returned.
* fold-const.c (fold_cond_expr_with_comparison): Use lang_GNU_CXX.
* langhooks.h (struct lang_hooks): Add version comment to name.
(lang_GNU_C): New function declaration.
(lang_GNU_CXX): Likewise.
* langhooks.c (lang_GNU_C): New function.
(lang_GNU_CXX): Likewise.
* vmsdbgout.c (vmsdbgout_init): Use lang_GNU_C and lang_GNU_CXX.
gcc/testsuite/ChangeLog
PR debug/38757
* gcc.dg/debug/dwarf2/lang-c89.c: New test.
* gcc.dg/debug/dwarf2/lang-c99.c: Likewise.
From-SVN: r217934
Diffstat (limited to 'gcc/langhooks.c')
| -rw-r--r-- | gcc/langhooks.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/gcc/langhooks.c b/gcc/langhooks.c index 2461fc5f668..e24dabbb2e0 100644 --- a/gcc/langhooks.c +++ b/gcc/langhooks.c @@ -709,3 +709,20 @@ lhd_enum_underlying_base_type (const_tree enum_type) return lang_hooks.types.type_for_size (TYPE_PRECISION (enum_type), TYPE_UNSIGNED (enum_type)); } + +/* Returns true if the current lang_hooks represents the GNU C frontend. */ + +bool +lang_GNU_C (void) +{ + return (strncmp (lang_hooks.name, "GNU C", 5) == 0 + && (lang_hooks.name[5] == '\0' || ISDIGIT (lang_hooks.name[5]))); +} + +/* Returns true if the current lang_hooks represents the GNU C++ frontend. */ + +bool +lang_GNU_CXX (void) +{ + return strncmp (lang_hooks.name, "GNU C++", 7) == 0; +} |