[llvm] Reland "Symbolize line zero as if no source info is available (#124846)" (PR #133798)
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llvm-commits at lists.llvm.org
Mon Mar 31 14:00:31 PDT 2025
llvmbot wrote:
<!--LLVM PR SUMMARY COMMENT-->
@llvm/pr-subscribers-debuginfo
Author: Zequan Wu (ZequanWu)
<details>
<summary>Changes</summary>
This land commits 23aca2f88dd5d2447e69496c89c3ed42a56f9c31 and 1b15a89a23c631a8e2d096dad4afe456970572c0. https://github.com/llvm/llvm-project/pull/128619 makes symbolizer to always use debug info when available so we can reland this chagnge.
---
Full diff: https://github.com/llvm/llvm-project/pull/133798.diff
8 Files Affected:
- (modified) llvm/lib/DebugInfo/DWARF/DWARFContext.cpp (+1-1)
- (modified) llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp (+2-1)
- (modified) llvm/test/tools/llvm-symbolizer/skip-line-zero.s (+2-2)
- (modified) llvm/test/tools/llvm-symbolizer/sym-verbose.test (+2-3)
- (modified) offload/test/sanitizer/kernel_crash_many.c (+7-7)
- (modified) offload/test/sanitizer/kernel_trap.c (-1)
- (modified) offload/test/sanitizer/kernel_trap.cpp (+2-2)
- (modified) offload/test/sanitizer/kernel_trap_many.c (+1-1)
``````````diff
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
index e76e518ef8595..9c5d43dd4fb77 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFContext.cpp
@@ -1870,7 +1870,7 @@ DWARFContext::getInliningInfoForAddress(object::SectionedAddress Address,
LineTable->getFileLineInfoForAddress(
{Address.Address, Address.SectionIndex}, Spec.ApproximateLine,
CU->getCompilationDir(), Spec.FLIKind, Frame);
- } else {
+ } else if (CallLine != 0) {
// Otherwise, use call file, call line and call column from
// previous DIE in inlined chain.
if (LineTable)
diff --git a/llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp b/llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp
index 55a3bfa459c3c..62bf3d4ecaaf0 100644
--- a/llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp
+++ b/llvm/lib/DebugInfo/DWARF/DWARFDebugLine.cpp
@@ -1539,7 +1539,8 @@ bool DWARFDebugLine::LineTable::getFileLineInfoForAddress(
return false;
// Take file number and line/column from the row.
const auto &Row = Rows[RowIndex];
- if (!getFileNameByIndex(Row.File, CompDir, Kind, Result.FileName))
+ if (Row.Line == 0 ||
+ !getFileNameByIndex(Row.File, CompDir, Kind, Result.FileName))
return false;
Result.Line = Row.Line;
Result.Column = Row.Column;
diff --git a/llvm/test/tools/llvm-symbolizer/skip-line-zero.s b/llvm/test/tools/llvm-symbolizer/skip-line-zero.s
index e9fbea558e0eb..74dfb5cdc1aae 100644
--- a/llvm/test/tools/llvm-symbolizer/skip-line-zero.s
+++ b/llvm/test/tools/llvm-symbolizer/skip-line-zero.s
@@ -20,13 +20,13 @@
## Check that without '--skip-line-zero', line zero is displayed for a line-table entry which has no source correspondence.
# RUN: llvm-symbolizer --obj=%t.o -f=none 0x16d4 | FileCheck --strict-whitespace --match-full-lines --check-prefix=DISABLE %s
-# DISABLE:main.c:0:0
+# DISABLE:??:0:0
## Check that the '--skip-line-zero' does not cross sequence boundaries.
## If it fails to find in the current sequence then line zero is returned for the queried address.
# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x16c0 | FileCheck --strict-whitespace --match-full-lines --check-prefix=FAIL-ACROSS-SEQ %s
-# FAIL-ACROSS-SEQ:main.c:0:0
+# FAIL-ACROSS-SEQ:??:0:0
## Check that with '--skip-line-zero', the last non-zero line in the current sequence is displayed.
# RUN: llvm-symbolizer --obj=%t.o -f=none --skip-line-zero 0x1717 | FileCheck --strict-whitespace --match-full-lines --check-prefix=WITHIN-SEQ %s
diff --git a/llvm/test/tools/llvm-symbolizer/sym-verbose.test b/llvm/test/tools/llvm-symbolizer/sym-verbose.test
index 831fd6c7f0507..224c317f558a1 100644
--- a/llvm/test/tools/llvm-symbolizer/sym-verbose.test
+++ b/llvm/test/tools/llvm-symbolizer/sym-verbose.test
@@ -50,13 +50,12 @@ CHECK-NEXT: Column: 0
CHECK: 0x4005ad
CHECK-NEXT: foo
-CHECK-NEXT: Filename: /tmp{{[\\/]}}discrim.c
+CHECK-NEXT: Filename: ??
CHECK-NEXT: Function start filename: /tmp{{[\\/]}}discrim.c
CHECK-NEXT: Function start line: 4
CHECK-NEXT: Function start address: 0x400590
CHECK-NEXT: Line: 0
-CHECK-NEXT: Column: 30
-CHECK-NEXT: Discriminator: 4
+CHECK-NEXT: Column: 0
CHECK-NEXT: main
CHECK-NEXT: Filename: /tmp{{[\\/]}}discrim.c
CHECK-NEXT: Function start filename: /tmp{{[\\/]}}discrim.c
diff --git a/offload/test/sanitizer/kernel_crash_many.c b/offload/test/sanitizer/kernel_crash_many.c
index f1d17ca2b76e2..9fd8af48f51fe 100644
--- a/offload/test/sanitizer/kernel_crash_many.c
+++ b/offload/test/sanitizer/kernel_crash_many.c
@@ -37,36 +37,36 @@ int main(void) {
// CHECK: Kernel 1: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 2: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 3: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 4: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 5: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 6: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK: Kernel 7: {{.*}} (__omp_offloading_{{.*}}_main_l22)
// CHECK: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_crash_many.c:
+// DEBUG: main {{.*}}kernel_crash_many.c
//
// CHECK-NOT: Kernel {{[[0-9]]+}}:
diff --git a/offload/test/sanitizer/kernel_trap.c b/offload/test/sanitizer/kernel_trap.c
index 7a166bfda5ee9..3a531bd74c980 100644
--- a/offload/test/sanitizer/kernel_trap.c
+++ b/offload/test/sanitizer/kernel_trap.c
@@ -39,5 +39,4 @@ int main(void) {
// CHECK: OFFLOAD ERROR: Kernel 'omp target in main @ 30 (__omp_offloading_{{.*}}_main_l30)'
// CHECK: OFFLOAD ERROR: execution interrupted by hardware trap instruction
// TRACE: launchKernel
-// TRACE: main
// clang-format on
diff --git a/offload/test/sanitizer/kernel_trap.cpp b/offload/test/sanitizer/kernel_trap.cpp
index c67b3857fabba..44858be6cd3f6 100644
--- a/offload/test/sanitizer/kernel_trap.cpp
+++ b/offload/test/sanitizer/kernel_trap.cpp
@@ -47,6 +47,6 @@ int main(void) {
// TRACE: launchKernel
// NDEBG: cxx_function_name<S>(int, S*)
// NDEBG: main
-// DEBUG: cxx_function_name<S>(int, S*) {{.*}}kernel_trap.cpp:
-// DEBUG: main {{.*}}kernel_trap.cpp:
+// DEBUG: cxx_function_name<S>(int, S*) {{.*}}kernel_trap.cpp
+// DEBUG: main {{.*}}kernel_trap.cpp
// clang-format on
diff --git a/offload/test/sanitizer/kernel_trap_many.c b/offload/test/sanitizer/kernel_trap_many.c
index f2e63794168b2..061c0fe225d4b 100644
--- a/offload/test/sanitizer/kernel_trap_many.c
+++ b/offload/test/sanitizer/kernel_trap_many.c
@@ -32,4 +32,4 @@ int main(void) {
// TRACE: OFFLOAD ERROR: execution interrupted by hardware trap instruction
// TRACE: launchKernel
// NDEBG: main
-// DEBUG: main {{.*}}kernel_trap_many.c:
+// DEBUG: main {{.*}}kernel_trap_many.c
``````````
</details>
https://github.com/llvm/llvm-project/pull/133798
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