123 lines
4.2 KiB
C++
123 lines
4.2 KiB
C++
// Copyright (c) 2016, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
// materials provided with the distribution.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#include "common/stack_trace.h"
|
|
#include "misc_log_ex.h"
|
|
#ifdef HAVE_LIBUNWIND
|
|
#define UNW_LOCAL_ONLY
|
|
#include <libunwind.h>
|
|
#endif
|
|
#include <cxxabi.h>
|
|
#ifndef STATICLIB
|
|
#include <dlfcn.h>
|
|
#endif
|
|
|
|
// from http://stackoverflow.com/questions/11665829/how-can-i-print-stack-trace-for-caught-exceptions-in-c-code-injection-in-c
|
|
#ifdef STATICLIB
|
|
#define CXA_THROW __wrap___cxa_throw
|
|
extern "C" void __real___cxa_throw(void *ex, void *info, void (*dest)(void*));
|
|
#else
|
|
#define CXA_THROW __cxa_throw
|
|
#endif
|
|
|
|
extern "C" void CXA_THROW(void *ex, void *info, void (*dest)(void*))
|
|
{
|
|
|
|
int status;
|
|
char *dsym = abi::__cxa_demangle(((const std::type_info*)info)->name(), NULL, NULL, &status);
|
|
tools::log_stack_trace((std::string("Exception: ")+((!status && dsym) ? dsym : (const char*)info)).c_str());
|
|
free(dsym);
|
|
|
|
#ifdef STATICLIB
|
|
__real___cxa_throw(ex, info, dest);
|
|
#else
|
|
static void (*const rethrow)(void*, void*, void(*)(void*)) __attribute__((noreturn)) = (void(*)(void*, void*, void(*)(void*)))dlsym(RTLD_NEXT, "__cxa_throw");
|
|
rethrow(ex, info, dest);
|
|
#endif
|
|
}
|
|
|
|
namespace
|
|
{
|
|
std::string stack_trace_log;
|
|
}
|
|
|
|
namespace tools
|
|
{
|
|
|
|
void set_stack_trace_log(const std::string &log)
|
|
{
|
|
stack_trace_log = log;
|
|
}
|
|
|
|
void log_stack_trace(const char *msg)
|
|
{
|
|
#ifdef HAVE_LIBUNWIND
|
|
unw_context_t ctx;
|
|
unw_cursor_t cur;
|
|
unw_word_t ip, off;
|
|
unsigned level;
|
|
char sym[512], *dsym;
|
|
int status;
|
|
const char *log = stack_trace_log.empty() ? NULL : stack_trace_log.c_str();
|
|
|
|
if (msg)
|
|
LOG_PRINT2(log, msg, LOG_LEVEL_0);
|
|
LOG_PRINT2(log, "Unwinded call stack:", LOG_LEVEL_0);
|
|
if (unw_getcontext(&ctx) < 0) {
|
|
LOG_PRINT2(log, "Failed to create unwind context", LOG_LEVEL_0);
|
|
return;
|
|
}
|
|
if (unw_init_local(&cur, &ctx) < 0) {
|
|
LOG_PRINT2(log, "Failed to find the first unwind frame", LOG_LEVEL_0);
|
|
return;
|
|
}
|
|
for (level = 1; level < 999; ++level) { // 999 for safety
|
|
int ret = unw_step(&cur);
|
|
if (ret < 0) {
|
|
LOG_PRINT2(log, "Failed to find the next frame", LOG_LEVEL_0);
|
|
return;
|
|
}
|
|
if (ret == 0)
|
|
break;
|
|
if (unw_get_reg(&cur, UNW_REG_IP, &ip) < 0) {
|
|
LOG_PRINT2(log, " " << std::setw(4) << level, LOG_LEVEL_0);
|
|
continue;
|
|
}
|
|
if (unw_get_proc_name(&cur, sym, sizeof(sym), &off) < 0) {
|
|
LOG_PRINT2(log, " " << std::setw(4) << level << std::setbase(16) << std::setw(20) << "0x" << ip, LOG_LEVEL_0);
|
|
continue;
|
|
}
|
|
dsym = abi::__cxa_demangle(sym, NULL, NULL, &status);
|
|
LOG_PRINT2(log, " " << std::setw(4) << level << std::setbase(16) << std::setw(20) << "0x" << ip << " " << (!status && dsym ? dsym : sym) << " + " << "0x" << off, LOG_LEVEL_0);
|
|
free(dsym);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
} // namespace tools
|