diff options
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index 26a5d8e..9154a54 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -5364,7 +5364,7 @@ foo: gcc_GAS_CHECK_FEATURE([assembly of compiler generated 32-bit .debug_line], gcc_cv_as_debug_line_32_flag, [elf,2,36,0], [], [$conftest_s],, - [success=yes]) + [dwarf4_success=yes]) else gcc_GAS_CHECK_FEATURE([assembly of compiler generated 64-bit .debug_line], gcc_cv_as_debug_line_64_flag, @@ -5372,11 +5372,11 @@ foo: [dwarf4_success=yes]) fi if test $dwarf4_success = yes; then + dwarf4_success=no gcc_GAS_CHECK_FEATURE([--gdwarf-4 not refusing compiler generated .debug_line], gcc_cv_as_dwarf_4_debug_line_flag, [elf,2,36,0], [--gdwarf-4], [$conftest_s],, - [AC_DEFINE(HAVE_AS_WORKING_DWARF_4_FLAG, 1, -[Define if your assembler supports --gdwarf-4 even with compiler generated .debug_line])]) + [dwarf4_success=yes]) break fi dwarf4_debug_info_size=0x36 @@ -5385,6 +5385,59 @@ foo: dwarf4_line_sz=5 done + if test $dwarf4_success = yes; then + conftest_s="\ + .file \"foo.c\" + .text +bar: +#APP +# 82 \"xxx.h\" 1 + $insn +# 0 \"\" 2 +#NO_APP + $insn +foo: + .file 1 \"foo.c\" + $insn + .file 2 \"foo.h\" + ret +" + dwarf4_success=no + gcc_GAS_CHECK_FEATURE([--gdwarf-4 with the APP marker], + gcc_cv_as_dwarf_4_app_flag,, + [--gdwarf-4], [$conftest_s],, [dwarf4_success=yes]) + fi + + if test $dwarf4_success = yes; then + conftest_s="\ + .text + .globl foo + .type foo, %function +foo: + $insn + .size foo, .-foo + .file 1 \"foo.c\" +" + gcc_GAS_CHECK_FEATURE([working --gdwarf-4/--gdwarf-5 for all sources], + gcc_cv_as_working_gdwarf_n_flag,, + [--gdwarf-4], + [$conftest_s], + [changequote(,)dnl + if test x$gcc_cv_readelf != x \ + && $gcc_cv_readelf -w conftest.o 2>&1 \ + | grep conftest.s > /dev/null 2>&1; then + gcc_cv_as_working_gdwarf_n_flag=no + else + gcc_cv_as_working_gdwarf_n_flag=yes + fi + changequote([,])dnl]) + if test $gcc_cv_as_working_gdwarf_n_flag = yes; then + AC_DEFINE(HAVE_AS_WORKING_DWARF_N_FLAG, 1, +[Define if your assembler supports --gdwarf-4/--gdwarf-5 even with + compiler generated .debug_line.]) + fi + fi + gcc_GAS_CHECK_FEATURE([--gstabs option], gcc_cv_as_gstabs_flag, [elf,2,11,0], [--gstabs], [$insn],, |