diff options
Diffstat (limited to '')
| -rw-r--r-- | src/common/CMakeLists.txt | 7 | ||||
| -rw-r--r-- | src/common/stack_trace.cpp | 120 | ||||
| -rw-r--r-- | src/common/stack_trace.h | 43 | ||||
| -rw-r--r-- | src/daemon/main.cpp | 2 |
4 files changed, 170 insertions, 2 deletions
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt index 2289704e5..9afbe4b82 100644 --- a/src/common/CMakeLists.txt +++ b/src/common/CMakeLists.txt @@ -31,7 +31,8 @@ set(common_sources command_line.cpp dns_utils.cpp util.cpp - i18n.cpp) + i18n.cpp + stack_trace.cpp) set(common_headers) @@ -48,7 +49,8 @@ set(common_private_headers unordered_containers_boost_serialization.h util.h varint.h - i18n.h) + i18n.h + stack_trace.h) bitmonero_private_headers(common ${common_private_headers}) @@ -60,6 +62,7 @@ target_link_libraries(common LINK_PRIVATE crypto ${UNBOUND_LIBRARY} + ${LIBUNWIND_LIBRARIES} ${Boost_DATE_TIME_LIBRARY} ${Boost_FILESYSTEM_LIBRARY} ${Boost_SYSTEM_LIBRARY} diff --git a/src/common/stack_trace.cpp b/src/common/stack_trace.cpp new file mode 100644 index 000000000..1a65ca656 --- /dev/null +++ b/src/common/stack_trace.cpp @@ -0,0 +1,120 @@ +// 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" +#define UNW_LOCAL_ONLY +#include <libunwind.h> +#include <cxxabi.h> +#include <dlfcn.h> + +// 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); + } +#else +#warning libunwind disabled, no stack traces +#endif +} + +} // namespace tools diff --git a/src/common/stack_trace.h b/src/common/stack_trace.h new file mode 100644 index 000000000..25eec9fb3 --- /dev/null +++ b/src/common/stack_trace.h @@ -0,0 +1,43 @@ +// 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. + +#ifndef MONERO_EXCEPTION_H +#define MONERO_EXCEPTION_H + +#include <stdexcept> +#include <string> + +namespace tools +{ + +void set_stack_trace_log(const std::string &log); +void log_stack_trace(const char *msg); + +} // namespace tools + +#endif diff --git a/src/daemon/main.cpp b/src/daemon/main.cpp index 0717fd89b..8684b5d09 100644 --- a/src/daemon/main.cpp +++ b/src/daemon/main.cpp @@ -31,6 +31,7 @@ #include "common/command_line.h" #include "common/scoped_message_writer.h" #include "common/util.h" +#include "common/stack_trace.h" #include "cryptonote_core/cryptonote_core.h" #include "cryptonote_core/miner.h" #include "daemon/command_server.h" @@ -258,6 +259,7 @@ int main(int argc, char const * argv[]) , log_file_path.filename().string().c_str() , log_file_path.parent_path().string().c_str() ); + tools::set_stack_trace_log(log_file_path.filename().string()); } _note_c("dbg/main", "Moving from main() into the daemonize now."); |