[llvm-commits] [llvm] r117930 - in /llvm/trunk: lib/MC/MCELFStreamer.cpp test/MC/ELF/debug-line.s

[Rafael Espindola]

Author: rafael
Date: Mon Nov  1 12:07:14 2010
New Revision: 117930

URL: http://llvm.org/viewvc/llvm-project?rev=117930&view=rev
Log:
Write the line info to .debug_line.

Added:
    llvm/trunk/test/MC/ELF/debug-line.s
Modified:
    llvm/trunk/lib/MC/MCELFStreamer.cpp

Modified: llvm/trunk/lib/MC/MCELFStreamer.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/MC/MCELFStreamer.cpp?rev=117930&r1=117929&r2=117930&view=diff
==============================================================================
--- llvm/trunk/lib/MC/MCELFStreamer.cpp (original)
+++ llvm/trunk/lib/MC/MCELFStreamer.cpp Mon Nov  1 12:07:14 2010
@@ -511,6 +511,15 @@
 }
 
 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) {

Added: llvm/trunk/test/MC/ELF/debug-line.s
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/MC/ELF/debug-line.s?rev=117930&view=auto
==============================================================================
--- llvm/trunk/test/MC/ELF/debug-line.s (added)
+++ llvm/trunk/test/MC/ELF/debug-line.s Mon Nov  1 12:07:14 2010
@@ -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,"", at progbits
+	.text
+
+	.file 1 "foo.c"
+	.loc 1 4 0
+	subq	$8, %rsp