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Write the line info to .debug_line.

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llvm-svn: 117930
This commit is contained in:
Rafael Espindola 2010-11-01 17:07:14 +00:00
parent 76910aa62f
commit 2f114f8430
2 changed files with 31 additions and 0 deletions
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9
lib/MC/MCELFStreamer.cpp
View File

@ -511,6 +511,15 @@ void MCELFStreamer::EmitInstToData(const MCInst &Inst) {
}
void MCELFStreamer::Finish() {
// FIXME: duplicated code with the MachO streamer.
// Dump out the dwarf file & directory tables and line tables.
if (getContext().hasDwarfFiles()) {
const MCSection *DwarfLineSection =
getContext().getELFSection(".debug_line", 0, 0,
SectionKind::getDataRelLocal());
MCDwarfFileTable::Emit(this, DwarfLineSection);
}
for (std::vector<LocalCommon>::const_iterator i = LocalCommons.begin(),
e = LocalCommons.end();
i != e; ++i) {

22
test/MC/ELF/debug-line.s Normal file
View File

@ -0,0 +1,22 @@
// RUN: llvm-mc -filetype=obj -triple x86_64-pc-linux-gnu %s -o - | elf-dump --dump-section-data | FileCheck %s
// Test that .debug_line is populated.
// CHECK: (('sh_name', 0x00000031) # '.debug_line'
// CHECK-NEXT: ('sh_type', 0x00000001)
// CHECK-NEXT: ('sh_flags', 0x00000000)
// CHECK-NEXT: ('sh_addr', 0x00000000)
// CHECK-NEXT: ('sh_offset', 0x00000044)
// CHECK-NEXT: ('sh_size', 0x00000037)
// CHECK-NEXT: ('sh_link', 0x00000000)
// CHECK-NEXT: ('sh_info', 0x00000000)
// CHECK-NEXT: ('sh_addralign', 0x00000001)
// CHECK-NEXT: ('sh_entsize', 0x00000000)
// CHECK-NEXT: ('_section_data', '33000000 02001c00 00000101 fb0e0d00 01010101 00000001 00000100 666f6f2e 63000000 00000009 02000000 00000000 00150204 000101')
.section .debug_line,"",@progbits
.text
.file 1 "foo.c"
.loc 1 4 0
subq $8, %rsp