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Output DW_AT_stmt_list dwarf debug info as DW_FORM_sec_offset instead of DW_FORM_data4 as it is a section offset (fixes the coff/dwarf debug info statement locations)

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git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@188297 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Carlo Kok 2013-08-13 17:46:57 +00:00
parent e05a304e5a
commit 46f0b6f10a
2 changed files with 41 additions and 1 deletions
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2
lib/CodeGen/AsmPrinter/DwarfDebug.cpp
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@ -740,7 +740,7 @@ CompileUnit *DwarfDebug::constructCompileUnit(const MDNode *N) {
// is not okay to use line_table_start here.
if (!useSplitDwarf()) {
if (Asm->MAI->doesDwarfUseRelocationsAcrossSections())
NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_data4,
NewCU->addLabel(Die, dwarf::DW_AT_stmt_list, dwarf::DW_FORM_sec_offset,
UseTheFirstCU ?
Asm->GetTempSymbol("section_line") : LineTableStartSym);
else if (UseTheFirstCU)

40
test/DebugInfo/X86/DW_AT_stmt_list_sec_offset.ll Normal file
View File

@ -0,0 +1,40 @@
; RUN: llc -mtriple=i686-w64-mingw32 -o %t -filetype=obj %s
; RUN: llvm-dwarfdump -debug-dump=all %t | FileCheck %s
; CHECK: DW_AT_stmt_list [DW_FORM_sec_offset]
;
; generated from:
; clang -g -S -emit-llvm test.c -o test.ll
; int main()
; {
; return 0;
; }
; ModuleID = 'test.c'
target datalayout = "e-p:32:32:32-i1:8:8-i8:8:8-i16:16:16-i32:32:32-i64:64:64-f32:32:32-f64:64:64-f80:128:128-v64:64:64-v128:128:128-a0:0:64-f80:32:32-n8:16:32-S32"
target triple = "i686-pc-win32"
; Function Attrs: nounwind
define i32 @main() #0 {
entry:
%retval = alloca i32, align 4
store i32 0, i32* %retval
ret i32 0, !dbg !10
}
attributes #0 = { nounwind "less-precise-fpmad"="false" "no-frame-pointer-elim"="true" "no-frame-pointer-elim-non-leaf"="true" "no-infs-fp-math"="false" "no-nans-fp-math"="false" "stack-protector-buffer-size"="8" "unsafe-fp-math"="false" "use-soft-float"="false" }
!llvm.dbg.cu = !{!0}
!llvm.module.flags = !{!9}
!0 = metadata !{i32 786449, metadata !1, i32 12, metadata !"clang version 3.4 ", i1 false, metadata !"", i32 0, metadata !2, metadata !2, metadata !3, metadata !2, metadata !2, metadata !""} ; [ DW_TAG_compile_unit ] [C:\Projects/test.c] [DW_LANG_C99]
!1 = metadata !{metadata !"test.c", metadata !"C:\5CProjects"}
!2 = metadata !{i32 0}
!3 = metadata !{metadata !4}
!4 = metadata !{i32 786478, metadata !1, metadata !5, metadata !"main", metadata !"main", metadata !"", i32 1, metadata !6, i1 false, i1 true, i32 0, i32 0, null, i32 0, i1 false, i32 ()* @main, null, null, metadata !2, i32 2} ; [ DW_TAG_subprogram ] [line 1] [def] [scope 2] [main]
!5 = metadata !{i32 786473, metadata !1} ; [ DW_TAG_file_type ] [C:\Projects/test.c]
!6 = metadata !{i32 786453, i32 0, i32 0, metadata !"", i32 0, i64 0, i64 0, i64 0, i32 0, null, metadata !7, i32 0, i32 0} ; [ DW_TAG_subroutine_type ] [line 0, size 0, align 0, offset 0] [from ]
!7 = metadata !{metadata !8}
!8 = metadata !{i32 786468, null, null, metadata !"int", i32 0, i64 32, i64 32, i64 0, i32 0, i32 5} ; [ DW_TAG_base_type ] [int] [line 0, size 32, align 32, offset 0, enc DW_ATE_signed]
!9 = metadata !{i32 2, metadata !"Dwarf Version", i32 3}
!10 = metadata !{i32 3, i32 0, metadata !4, null}