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In a debug_frame the cfi offset is to the start of the debug_frame section!

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llvm-svn: 131129
This commit is contained in:
Rafael Espindola 2011-05-10 15:20:23 +00:00
parent 4afbfa1796
commit ff4443c82c
2 changed files with 9 additions and 9 deletions
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10
lib/MC/MCDwarf.cpp
View File

@ -752,9 +752,13 @@ MCSymbol *FrameEmitterImpl::EmitFDE(MCStreamer &streamer,
streamer.EmitLabel(fdeStart);
// CIE Pointer
const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
0);
streamer.EmitAbsValue(offset, 4);
if (IsEH) {
const MCExpr *offset = MakeStartMinusEndExpr(streamer, cieStart, *fdeStart,
0);
streamer.EmitAbsValue(offset, 4);
} else {
streamer.EmitSymbolValue(&cieStart, 4);
}
unsigned fdeEncoding = asmInfo.getFDEEncoding(UsingCFI);
unsigned size = getSizeForEncoding(streamer, fdeEncoding);

8
test/MC/ELF/cfi-sections.s
View File

@ -1,10 +1,6 @@
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=ELF_64 %s
// RUN: llvm-mc -filetype=obj -triple i686-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck -check-prefix=ELF_32 %s
// The only difference in gas' output in this test is that we don't produce
// the relocations to .debug_frame (we know their values).
.cfi_sections .debug_frame
f1:
@ -27,7 +23,7 @@ f2:
// ELF_64-NEXT: ('sh_info', 0x00000000)
// ELF_64-NEXT: ('sh_addralign', 0x00000008)
// ELF_64-NEXT: ('sh_entsize', 0x00000000)
// ELF_64-NEXT: ('_section_data', '14000000 ffffffff 01000178 100c0708 90010000 00000000 14000000 1c000000 00000000 00000000 01000000 00000000 14000000 34000000 00000000 00000000 01000000 00000000')
// ELF_64-NEXT: ('_section_data', '14000000 ffffffff 01000178 100c0708 90010000 00000000 14000000 00000000 00000000 00000000 01000000 00000000 14000000 00000000 00000000 00000000 01000000 00000000')
// ELF_32: (('sh_name', 0x00000010) # '.debug_frame'
// ELF_32-NEXT: ('sh_type', 0x00000001)
@ -39,4 +35,4 @@ f2:
// ELF_32-NEXT: ('sh_info', 0x00000000)
// ELF_32-NEXT: ('sh_addralign', 0x00000004)
// ELF_32-NEXT: ('sh_entsize', 0x00000000)
// ELF_32-NEXT: ('_section_data', '10000000 ffffffff 0100017c 080c0404 88010000 0c000000 18000000 00000000 01000000 0c000000 28000000 01000000 01000000')
// ELF_32-NEXT: ('_section_data', '10000000 ffffffff 0100017c 080c0404 88010000 0c000000 00000000 00000000 01000000 0c000000 00000000 01000000 01000000')