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//===-- sanitizer_stacktrace.h ----------------------------------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file is shared between AddressSanitizer and ThreadSanitizer
// run-time libraries.
//===----------------------------------------------------------------------===//
#ifndef SANITIZER_STACKTRACE_H
#define SANITIZER_STACKTRACE_H
#include "sanitizer_internal_defs.h"
namespace __sanitizer {
static const uptr kStackTraceMax = 256;
struct StackTrace {
typedef bool (*SymbolizeCallback)(const void *pc, char *out_buffer,
int out_size);
uptr size;
uptr max_size;
uptr trace[kStackTraceMax];
static void PrintStack(const uptr *addr, uptr size,
bool symbolize, const char *strip_file_prefix,
SymbolizeCallback symbolize_callback);
void CopyTo(uptr *dst, uptr dst_size) {
for (uptr i = 0; i < size && i < dst_size; i++)
dst[i] = trace[i];
for (uptr i = size; i < dst_size; i++)
dst[i] = 0;
}
void CopyFrom(uptr *src, uptr src_size) {
size = src_size;
if (size > kStackTraceMax) size = kStackTraceMax;
for (uptr i = 0; i < size; i++) {
trace[i] = src[i];
}
}
void FastUnwindStack(uptr pc, uptr bp, uptr stack_top, uptr stack_bottom);
void SlowUnwindStack(uptr pc, uptr max_depth);
void PopStackFrames(uptr count);
static uptr GetCurrentPc();
static uptr GetPreviousInstructionPc(uptr pc);
static uptr CompressStack(StackTrace *stack,
u32 *compressed, uptr size);
static void UncompressStack(StackTrace *stack,
u32 *compressed, uptr size);
};
const char *StripPathPrefix(const char *filepath,
const char *strip_file_prefix);
} // namespace __sanitizer
// Use this macro if you want to print stack trace with the caller
// of the current function in the top frame.
#define GET_CALLER_PC_BP_SP \
uptr bp = GET_CURRENT_FRAME(); \
uptr pc = GET_CALLER_PC(); \
uptr local_stack; \
uptr sp = (uptr)&local_stack
// Use this macro if you want to print stack trace with the current
// function in the top frame.
#define GET_CURRENT_PC_BP_SP \
uptr bp = GET_CURRENT_FRAME(); \
uptr pc = StackTrace::GetCurrentPc(); \
uptr local_stack; \
uptr sp = (uptr)&local_stack
#endif // SANITIZER_STACKTRACE_H