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Emit DWARF line entries for all data in the instruction stream.

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r182712 attempted to do this, but it failed to handle data emitted via
EmitBytes.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@193041 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Peter Collingbourne 2013-10-20 02:16:18 +00:00
parent 53c9e5fbb9
commit e52fac1632
2 changed files with 20 additions and 6 deletions
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1
lib/MC/MCObjectStreamer.cpp
View File

@ -305,6 +305,7 @@ void MCObjectStreamer::EmitDwarfAdvanceFrameAddr(const MCSymbol *LastLabel,
}
void MCObjectStreamer::EmitBytes(StringRef Data) {
MCLineEntry::Make(this, getCurrentSection().first);
getOrCreateDataFragment()->getContents().append(Data.begin(), Data.end());
}

25
test/MC/ELF/debug-line.s
View File

@ -1,6 +1,15 @@
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | llvm-readobj -s -sd | FileCheck %s
// Test that .debug_line is populated.
// Test that .debug_line is populated. TODO: This test should really be using
// llvm-dwarfdump, but it cannot parse this particular object file. The content
// of .debug_line was checked using GNU binutils:
// $ objdump --dwarf=decodedline debug-line.o
// [...]
// File name Line number Starting address
// foo.c 4 0
// foo.c 5 0x4
// foo.c 6 0x5
// CHECK: Section {
// CHECK: Name: .debug_line
@ -8,18 +17,18 @@
// CHECK-NEXT: Flags [
// CHECK-NEXT: ]
// CHECK-NEXT: Address: 0x0
// CHECK-NEXT: Offset: 0x48
// CHECK-NEXT: Size: 72
// CHECK-NEXT: Offset: 0x50
// CHECK-NEXT: Size: 57
// CHECK-NEXT: Link: 0
// CHECK-NEXT: Info: 0
// CHECK-NEXT: AddressAlignment: 1
// CHECK-NEXT: EntrySize: 0
// CHECK-NEXT: SectionData (
// CHECK-NEXT: 0000: 44000000 02001C00 00000101 FB0E0D00
// CHECK-NEXT: 0000: 35000000 02001C00 00000101 FB0E0D00
// CHECK-NEXT: 0010: 01010101 00000001 00000100 666F6F2E
// CHECK-NEXT: 0020: 63000000 00000009 02000000 00000000
// CHECK-NEXT: 0030: 00150205 00010100 09020000 00000000
// CHECK-NEXT: 0040: 00001602 43000101
// CHECK-NEXT: 0030: 00154B21 02080001 01
// CHECK-NEXT: )
// CHECK-NEXT: }
@ -34,3 +43,7 @@
.loc 1 5 0
.byte 0xc3
.loc 1 6 0
l:
.quad l