forked from OSchip/llvm-project
86 lines
2.7 KiB
C++
86 lines
2.7 KiB
C++
//===-- tsan_symbolize.cc -------------------------------------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
//
|
|
// This file is a part of ThreadSanitizer (TSan), a race detector.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "tsan_symbolize.h"
|
|
|
|
#include "sanitizer_common/sanitizer_common.h"
|
|
#include "sanitizer_common/sanitizer_placement_new.h"
|
|
#include "sanitizer_common/sanitizer_symbolizer.h"
|
|
#include "tsan_flags.h"
|
|
#include "tsan_report.h"
|
|
|
|
namespace __tsan {
|
|
|
|
ReportStack *NewReportStackEntry(uptr addr) {
|
|
ReportStack *ent = (ReportStack*)internal_alloc(MBlockReportStack,
|
|
sizeof(ReportStack));
|
|
internal_memset(ent, 0, sizeof(*ent));
|
|
ent->pc = addr;
|
|
return ent;
|
|
}
|
|
|
|
static ReportStack *NewReportStackEntry(const AddressInfo &info) {
|
|
ReportStack *ent = NewReportStackEntry(info.address);
|
|
if (info.module) {
|
|
// Strip module path to make output shorter.
|
|
const char *short_module_name = internal_strrchr(info.module, '/');
|
|
if (short_module_name)
|
|
short_module_name += 1;
|
|
else
|
|
short_module_name = info.module;
|
|
ent->module = internal_strdup(short_module_name);
|
|
}
|
|
ent->offset = info.module_offset;
|
|
if (info.function) {
|
|
ent->func = internal_strdup(info.function);
|
|
}
|
|
if (info.file)
|
|
ent->file = internal_strdup(info.file);
|
|
ent->line = info.line;
|
|
ent->col = info.column;
|
|
return ent;
|
|
}
|
|
|
|
ReportStack *SymbolizeCode(uptr addr) {
|
|
if (0 != internal_strcmp(flags()->external_symbolizer_path, "")) {
|
|
static const uptr kMaxAddrFrames = 16;
|
|
InternalScopedBuffer<AddressInfo> addr_frames(kMaxAddrFrames);
|
|
for (uptr i = 0; i < kMaxAddrFrames; i++)
|
|
new(&addr_frames[i]) AddressInfo();
|
|
uptr addr_frames_num = __sanitizer::SymbolizeCode(addr, addr_frames.data(),
|
|
kMaxAddrFrames);
|
|
if (addr_frames_num == 0)
|
|
return NewReportStackEntry(addr);
|
|
ReportStack *top = 0;
|
|
ReportStack *bottom = 0;
|
|
for (uptr i = 0; i < addr_frames_num; i++) {
|
|
ReportStack *cur_entry = NewReportStackEntry(addr_frames[i]);
|
|
CHECK(cur_entry);
|
|
addr_frames[i].Clear();
|
|
if (i == 0)
|
|
top = cur_entry;
|
|
else
|
|
bottom->next = cur_entry;
|
|
bottom = cur_entry;
|
|
}
|
|
return top;
|
|
}
|
|
return SymbolizeCodeAddr2Line(addr);
|
|
}
|
|
|
|
ReportStack *SymbolizeData(uptr addr) {
|
|
return SymbolizeDataAddr2Line(addr);
|
|
}
|
|
|
|
} // namespace __tsan
|