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| author | Eric Botcazou <ebotcazou@adacore.com> | 2021-06-24 12:53:24 +0200 |
|---|---|---|
| committer | Eric Botcazou <ebotcazou@adacore.com> | 2021-06-24 14:11:32 +0200 |
| commit | aca1213627d1d5e5a70ce956cf227be9ae9b4022 (patch) | |
| tree | 5cbecc347885dc75a5133854db1aa0f8f57ac1bc /gcc/configure.ac | |
| parent | 2898a02fd5e51e4562be2dc16b755288400e4456 (diff) | |
| download | gcc-aca1213627d1d5e5a70ce956cf227be9ae9b4022.zip gcc-aca1213627d1d5e5a70ce956cf227be9ae9b4022.tar.gz gcc-aca1213627d1d5e5a70ce956cf227be9ae9b4022.tar.bz2 | |
Fix --gdwarf-5 configure tests for Windows
The issues are that 1) they use readelf instead of objdump and 2) they use
ELF syntax in the assembly code.
gcc/
* configure.ac (--gdwarf-5 option): Use objdump instead of readelf.
(working --gdwarf-4/--gdwarf-5 for all sources): Likewise.
(--gdwarf-4 not refusing generated .debug_line): Adjust for Windows.
* configure: Regenerate.
Diffstat (limited to 'gcc/configure.ac')
| -rw-r--r-- | gcc/configure.ac | 36 |
1 files changed, 23 insertions, 13 deletions
diff --git a/gcc/configure.ac b/gcc/configure.ac index 5f30f80..7008939 100644 --- a/gcc/configure.ac +++ b/gcc/configure.ac @@ -5457,13 +5457,23 @@ if test x"$insn" != x; then gcc_GAS_CHECK_FEATURE([--gdwarf-5 option], gcc_cv_as_gdwarf_5_flag, [elf,2,36,0], [--gdwarf-5], [$insn], - [if test x$gcc_cv_readelf != x \ - && $gcc_cv_readelf -wi conftest.o 2>&1 \ + [if test x$gcc_cv_objdump != x \ + && $gcc_cv_objdump -Wi conftest.o 2>&1 \ | grep DW_TAG_compile_unit > /dev/null 2>&1; then gcc_cv_as_gdwarf_5_flag=yes; fi],[AC_DEFINE(HAVE_AS_GDWARF_5_DEBUG_FLAG, 1, [Define if your assembler supports the --gdwarf-5 option.])]) + case $target_os in + win32 | pe | cygwin* | mingw32*) + section_flags=\"dr\" + function_type=".def foo; .scl 2; .type 32; .endef" + function_size="";; + *) + section_flags=\"\",%progbits + function_type=".type foo, %function" + function_size=".size foo, .-foo";; + esac dwarf4_debug_info_size=0x46 dwarf4_high_pc_form=7 dwarf4_debug_aranges_size=0x2c @@ -5475,16 +5485,16 @@ if test x"$insn" != x; then .Ltext0: .p2align 4 .globl foo - .type foo, %function + $function_type foo: .LFB0: .LM1: $insn .LM2: .LFE0: - .size foo, .-foo + $function_size .Letext0: - .section .debug_info,\"\",%progbits + .section .debug_info,$section_flags .Ldebug_info0: .4byte $dwarf4_debug_info_size .2byte 0x4 @@ -5508,7 +5518,7 @@ foo: .byte 0x1 .byte 0x9c .byte 0 - .section .debug_abbrev,\"\",%progbits + .section .debug_abbrev,$section_flags .Ldebug_abbrev0: .byte 0x1 .byte 0x11 @@ -5551,7 +5561,7 @@ foo: .byte 0 .byte 0 .byte 0 - .section .debug_aranges,\"\",%progbits + .section .debug_aranges,$section_flags .4byte $dwarf4_debug_aranges_size .2byte 0x2 .4byte .Ldebug_info0 @@ -5563,7 +5573,7 @@ foo: .${dwarf4_addr_size}byte .Letext0-.Ltext0 .${dwarf4_addr_size}byte 0 .${dwarf4_addr_size}byte 0 - .section .debug_line,\"\",%progbits + .section .debug_line,$section_flags .Ldebug_line0: .4byte .LELT0-.LSLT0 .LSLT0: @@ -5617,7 +5627,7 @@ foo: .byte 0x1 .byte 0x1 .LELT0: - .section .debug_str,\"\",%progbits + .section .debug_str,$section_flags .ident \"GCC\" " dwarf4_success=no @@ -5673,10 +5683,10 @@ foo: conftest_s="\ .text .globl foo - .type foo, %function + $function_type foo: $insn - .size foo, .-foo + $function_size .file 1 \"foo.c\" " gcc_GAS_CHECK_FEATURE([working --gdwarf-4/--gdwarf-5 for all sources], @@ -5684,8 +5694,8 @@ foo: [--gdwarf-4], [$conftest_s], [changequote(,)dnl - if test x$gcc_cv_readelf != x \ - && $gcc_cv_readelf -w conftest.o 2>&1 \ + if test x$gcc_cv_objdump != x \ + && $gcc_cv_objdump -W conftest.o 2>&1 \ | grep conftest.s > /dev/null 2>&1; then gcc_cv_as_working_gdwarf_n_flag=no else |