llvm/compiler-rt/lib/tsan/rtl/tsan_symbolize.cpp

//===-- tsan_symbolize.cpp ------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// 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"
#include "tsan_rtl.h"

namespace __tsan {

void EnterSymbolizer() { … }

void ExitSymbolizer() { … }

// Legacy API.
// May be overriden by JIT/JAVA/etc,
// whatever produces PCs marked with kExternalPCBit.
SANITIZER_WEAK_DEFAULT_IMPL
bool __tsan_symbolize_external(uptr pc, char *func_buf, uptr func_siz,
                               char *file_buf, uptr file_siz, int *line,
                               int *col) { … }

// New API: call __tsan_symbolize_external_ex only when it exists.
// Once old clients are gone, provide dummy implementation.
SANITIZER_WEAK_DEFAULT_IMPL
void __tsan_symbolize_external_ex(uptr pc,
                                  void (*add_frame)(void *, const char *,
                                                    const char *, int, int),
                                  void *ctx) { … }

struct SymbolizedStackBuilder { … };

static void AddFrame(void *ctx, const char *function_name, const char *file,
                     int line, int column) { … }

SymbolizedStack *SymbolizeCode(uptr addr) { … }

ReportLocation *SymbolizeData(uptr addr) { … }

void SymbolizeFlush() { … }

}  // namespace __tsan