cpptrace/src/unwind/unwind_with_execinfo.cpp

28 lines
750 B
C++

#ifdef CPPTRACE_UNWIND_WITH_EXECINFO
#include "unwind.hpp"
#include "../platform/common.hpp"
#include "../platform/utils.hpp"
#include <algorithm>
#include <cstddef>
#include <vector>
#include <execinfo.h>
namespace cpptrace {
namespace detail {
CPPTRACE_FORCE_NO_INLINE
std::vector<void*> capture_frames(size_t skip) {
std::vector<void*> frames(hard_max_frames + skip, nullptr);
const int n_frames = backtrace(frames.data(), int(hard_max_frames + skip)); // thread safe
frames.resize(n_frames);
frames.erase(frames.begin(), frames.begin() + ptrdiff_t(std::min(skip + 1, frames.size())));
frames.shrink_to_fit();
return frames;
}
}
}
#endif