[llvm] r314288 - [dwarfdump] Add support for -debug-line=OFFSET
Jonas Devlieghere via llvm-commits
llvm-commits at lists.llvm.org
Wed Sep 27 02:33:45 PDT 2017
Author: jdevlieghere
Date: Wed Sep 27 02:33:45 2017
New Revision: 314288
URL: http://llvm.org/viewvc/llvm-project?rev=314288&view=rev
Log:
[dwarfdump] Add support for -debug-line=OFFSET
This patch adds support for passing an offset to -debug-line.
Differential revision: https://reviews.llvm.org/D38240
Added:
llvm/trunk/test/tools/llvm-dwarfdump/X86/debug_line_offset.test
Modified:
llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
llvm/trunk/test/DebugInfo/Generic/lto-comp-dir.ll
llvm/trunk/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
Modified: llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp?rev=314288&r1=314287&r2=314288&view=diff
==============================================================================
--- llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp (original)
+++ llvm/trunk/lib/DebugInfo/DWARF/DWARFContext.cpp Wed Sep 27 02:33:45 2017
@@ -331,12 +331,15 @@ void DWARFContext::dump(
if (!CUDIE)
continue;
if (auto StmtOffset = toSectionOffset(CUDIE.find(DW_AT_stmt_list))) {
+ if (DumpOffset && *StmtOffset != *DumpOffset)
+ continue;
DWARFDataExtractor lineData(*DObj, DObj->getLineSection(),
isLittleEndian(), savedAddressByteSize);
DWARFDebugLine::LineTable LineTable;
uint32_t Offset = *StmtOffset;
// Verbose dumping is done during parsing and not on the intermediate
// representation.
+ OS << "debug_line[" << format("%16.16" PRIx64, Offset) << "]\n";
if (DumpOpts.Verbose) {
LineTable.parse(lineData, &Offset, &OS);
} else {
Modified: llvm/trunk/test/DebugInfo/Generic/lto-comp-dir.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/Generic/lto-comp-dir.ll?rev=314288&r1=314287&r2=314288&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/Generic/lto-comp-dir.ll (original)
+++ llvm/trunk/test/DebugInfo/Generic/lto-comp-dir.ll Wed Sep 27 02:33:45 2017
@@ -8,12 +8,14 @@
; to refer to it.
; CHECK: .debug_line contents:
+; CHECK-NEXT: debug_line[0000000000000000]
; CHECK-NEXT: Line table prologue:
; CHECK-NOT: include_directories
; CHECK: file_names[ 1] 0 {{.*}} a.cpp
; CHECK-NOT: file_names
-; CHECK: Line table prologue:
+; CHECK: debug_line[0000000000000039]
+; CHECK-NEXT: Line table prologue:
; CHECK-NOT: include_directories
; CHECK: file_names[ 1] 0 {{.*}} b.cpp
; CHECK-NOT: file_names
Modified: llvm/trunk/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll?rev=314288&r1=314287&r2=314288&view=diff
==============================================================================
--- llvm/trunk/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll (original)
+++ llvm/trunk/test/DebugInfo/X86/stmt-list-multiple-compile-units.ll Wed Sep 27 02:33:45 2017
@@ -24,10 +24,12 @@
; CHECK: .debug_line contents:
+; CHECK-NEXT: debug_line[0000000000000000]
; CHECK-NEXT: Line table prologue:
; CHECK-NEXT: total_length: 0x00000038
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 simple.c
-; CHECK: Line table prologue:
+; CHECK: debug_line[000000000000003c]
+; CHECK-NEXT: Line table prologue:
; CHECK-NEXT: total_length: 0x00000039
; CHECK: file_names[ 1] 0 0x00000000 0x00000000 simple2.c
; CHECK-NOT: file_names
@@ -41,10 +43,12 @@
; DWARF3: .debug_line contents:
+; DWARF3-NEXT: debug_line[0000000000000000]
; DWARF3-NEXT: Line table prologue:
; DWARF3-NEXT: total_length: 0x00000038
; DWARF3: file_names[ 1] 0 0x00000000 0x00000000 simple.c
-; DWARF3: Line table prologue:
+; DWARF3: debug_line[000000000000003c]
+; DWARF3-NEXT: Line table prologue:
; DWARF3-NEXT: total_length: 0x00000039
; DWARF3: file_names[ 1] 0 0x00000000 0x00000000 simple2.c
; DWARF3-NOT: file_names
Added: llvm/trunk/test/tools/llvm-dwarfdump/X86/debug_line_offset.test
URL: http://llvm.org/viewvc/llvm-project/llvm/trunk/test/tools/llvm-dwarfdump/X86/debug_line_offset.test?rev=314288&view=auto
==============================================================================
--- llvm/trunk/test/tools/llvm-dwarfdump/X86/debug_line_offset.test (added)
+++ llvm/trunk/test/tools/llvm-dwarfdump/X86/debug_line_offset.test Wed Sep 27 02:33:45 2017
@@ -0,0 +1,28 @@
+RUN: llvm-dwarfdump %S/../../dsymutil/Inputs/basic-lto-dw4.macho.x86_64.o \
+RUN: -debug-line=0x0 | FileCheck %s --check-prefix=CHECK-A
+
+CHECK-A: debug_line[0000000000000000]
+CHECK-A: Address Line Column File ISA Discriminator Flags
+CHECK-A-NET: ------------------ ------ ------ ------ --- ------------- -------------
+CHECK-A-NET: 0x0000000000000000 26 0 1 0 0 is_stmt
+CHECK-A-NET: 0x0000000000000004 27 10 1 0 0 is_stmt prologue_end
+CHECK-A-NET: 0x0000000000000009 27 3 1 0 0
+CHECK-A-NET: 0x0000000000000074 27 3 1 0 0 end_sequence
+CHECK-A-NOT: debug_line[000000000000009a]
+
+RUN: llvm-dwarfdump %S/../../dsymutil/Inputs/basic-lto-dw4.macho.x86_64.o \
+RUN: -debug-line=0x9a | FileCheck %s --check-prefix=CHECK-B
+
+CHECK-B-NOT: debug_line[0000000000000000]
+CHECK-B: debug_line[000000000000009a]
+CHECK-B: Address Line Column File ISA Discriminator Flags
+CHECK-B-NEXT: ------------------ ------ ------ ------ --- ------------- -------------
+CHECK-B-NEXT: 0x0000000000000050 16 0 1 0 0 is_stmt
+CHECK-B-NEXT: 0x0000000000000054 12 10 1 0 0 is_stmt prologue_end
+CHECK-B-NEXT: 0x000000000000005a 17 7 1 0 0 is_stmt
+CHECK-B-NEXT: 0x000000000000005f 12 10 1 0 0 is_stmt
+CHECK-B-NEXT: 0x0000000000000067 20 1 1 0 0 is_stmt
+CHECK-B-NEXT: 0x0000000000000069 19 18 1 0 0 is_stmt
+CHECK-B-NEXT: 0x000000000000006b 19 10 1 0 0
+CHECK-B-NEXT: 0x0000000000000072 20 1 1 0 0 is_stmt
+CHECK-B-NEXT: 0x0000000000000074 20 1 1 0 0 is_stmt end_sequence
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