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[DeviceASAN] Fix incorrect symbolizer output for shared libraries #2229

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Merged
merged 3 commits into from
Oct 28, 2024
Merged

[DeviceASAN] Fix incorrect symbolizer output for shared libraries #2229

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3d826e6
[DeviceASAN] Fix incorrect symbolizer output for shared libraries
zhaomaosu Oct 22, 2024
817e26c
Minor update
zhaomaosu Oct 22, 2024
2cb803b
Merge branch 'main' into symbolizer-fix-shared-lib
zhaomaosu Oct 25, 2024
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27 changes: 26 additions & 1 deletion source/loader/layers/sanitizer/linux/symbolizer.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -7,8 +7,10 @@
* SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
*
*/
#include "common.hpp"
#include "llvm/DebugInfo/Symbolize/DIPrinter.h"
#include "llvm/DebugInfo/Symbolize/Symbolize.h"
#include <link.h>

namespace ur_sanitizer_layer {

Expand All @@ -27,6 +29,28 @@ llvm::symbolize::PrinterConfig GetPrinterConfig() {
return Config;
}

uptr GetModuleBase(const char *ModuleName) {
uptr Data = (uptr)ModuleName;
int Result = dl_iterate_phdr(
[](struct dl_phdr_info *Info, size_t, void *Arg) {
uptr *Data = (uptr *)Arg;
const char *ModuleName = (const char *)(*Data);
if (strstr(Info->dlpi_name, ModuleName)) {
*Data = (uptr)Info->dlpi_addr;
return 1;
}
return 0;
},
(void *)&Data);

// If dl_iterate_phdr return 0, it means the module is main executable,
// its base address should be 0.
if (!Result) {
return 0;
}
return Data;
}

} // namespace ur_sanitizer_layer

extern "C" {
Expand All @@ -49,7 +73,8 @@ void SymbolizeCode(const char *ModuleName, uint64_t ModuleOffset,

auto ResOrErr = ur_sanitizer_layer::GetSymbolizer()->symbolizeInlinedCode(
ModuleName,
{ModuleOffset, llvm::object::SectionedAddress::UndefSection});
{ModuleOffset - ur_sanitizer_layer::GetModuleBase(ModuleName),
llvm::object::SectionedAddress::UndefSection});

if (!ResOrErr) {
return;
Expand Down
8 changes: 5 additions & 3 deletions source/loader/layers/sanitizer/stacktrace.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -11,6 +11,7 @@
*/

#include "stacktrace.hpp"
#include "asan_interceptor.hpp"
#include "ur_sanitizer_layer.hpp"

extern "C" {
Expand Down Expand Up @@ -92,9 +93,10 @@ void StackTrace::print() const {
BacktraceInfo BI = BacktraceSymbols[i];

// Skip runtime modules
if (Contains(BI, "libsycl.so") ||
Contains(BI, "libpi_unified_runtime.so") ||
Contains(BI, "libur_loader.so")) {
if (!getContext()->interceptor->getOptions().Debug &&
(Contains(BI, "libsycl.so") || Contains(BI, "libur_loader.so") ||
Contains(BI, "libomptarget.rtl.unified_runtime.so") ||
Contains(BI, "libomptarget.so"))) {
continue;
}

Expand Down
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