boost/stacktrace
2
0
Fork 0
mirror of https://github.com/boostorg/stacktrace.git synced 2026-01-26 07:02:10 +00:00
Code Issues Projects Releases Wiki Activity

Optimize ostream operator with libbackend

Browse Source
This commit is contained in:
Antony Polukhin
2017-01-08 00:14:05 +03:00
parent b7bf4b5932
commit f37eea04fa
1 changed files with 48 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

77
include/boost/stacktrace/detail/backend_posix.hpp
View File

@@ -210,37 +210,45 @@ std::size_t backend::collect(void** memory, std::size_t size) BOOST_NOEXCEPT {
return frames_count;
}
std::string backend::to_string(const void* addr) {
#ifdef BOOST_STACKTRACE_USE_BACKTRACE
std::string res;
::backtrace_state* state = backtrace_create_state(
0, 0, 0, 0
);
inline std::string to_string_impl(const void* addr, ::backtrace_state* state) {
std::string res;
boost::stacktrace::detail::pc_data data;
data.is_function = 1;
data.is_filename = 1;
backtrace_pcinfo(state, reinterpret_cast<uintptr_t>(addr), boost::stacktrace::detail::libbacktrace_full_callback, 0, &data);
res.swap(data.function);
if (res.empty()) {
res = to_hex_array(addr).data();
boost::stacktrace::detail::pc_data data;
data.is_function = 1;
data.is_filename = 1;
backtrace_pcinfo(state, reinterpret_cast<uintptr_t>(addr), boost::stacktrace::detail::libbacktrace_full_callback, 0, &data);
res.swap(data.function);
if (res.empty()) {
res = to_hex_array(addr).data();
}
if (!data.filename.empty() && data.line) {
res += " at ";
res += data.filename;
res += ':';
res += boost::lexical_cast<boost::array<char, 40> >(data.line).data();
} else {
Dl_info dli;
if (!!dladdr(addr, &dli) && dli.dli_sname) {
res += " in ";
res += dli.dli_fname;
}
if (!data.filename.empty() && data.line) {
res += " at ";
res += data.filename;
res += ':';
res += boost::lexical_cast<boost::array<char, 40> >(data.line).data();
}else {
Dl_info dli;
if (!!dladdr(addr, &dli) && dli.dli_sname) {
res += " in ";
res += dli.dli_fname;
}
}
return res;
}
return res;
}
std::string backend::to_string(const void* addr) {
::backtrace_state* state = backtrace_create_state(
0, 0, 0, 0
);
return boost::stacktrace::detail::to_string_impl(addr, state);
}
#else
std::string backend::to_string(const void* addr) {
std::string res = boost::stacktrace::frame(addr).name();
if (res.empty()) {
res = to_hex_array(addr).data();
@@ -260,12 +268,19 @@ std::string backend::to_string(const void* addr) {
return res;
//return addr2line("-Cfipe", addr); // Does not seem to work in all cases
#endif
}
#endif
std::string backend::to_string(const frame* frames, std::size_t size) {
std::string res;
res.reserve(64 * size);
#ifdef BOOST_STACKTRACE_USE_BACKTRACE
::backtrace_state* state = backtrace_create_state(
0, 0, 0, 0
);
#endif
for (std::size_t i = 0; i < size; ++i) {
if (i < 10) {
res += ' ';
@@ -273,7 +288,11 @@ std::string backend::to_string(const frame* frames, std::size_t size) {
res += boost::lexical_cast<boost::array<char, 40> >(i).data();
res += '#';
res += ' ';
res += to_string(frames[i].address());
#ifdef BOOST_STACKTRACE_USE_BACKTRACE
res += boost::stacktrace::detail::to_string_impl(frames[i].address(), state);
#else
res += boost::stacktrace::detail::backend::to_string(frames[i].address());
#endif
res += '\n';
}