44 lines
1.3 KiB
C++
44 lines
1.3 KiB
C++
#ifdef CPPTRACE_UNWIND_WITH_WINAPI
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#include <cpptrace/cpptrace.hpp>
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#include "unwind.hpp"
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#include "../platform/common.hpp"
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#include "../platform/utils.hpp"
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#include <algorithm>
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#include <cstdint>
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#include <vector>
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#include <windows.h>
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// Fucking windows headers
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#ifdef min
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#undef min
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#endif
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namespace cpptrace {
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namespace detail {
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CPPTRACE_FORCE_NO_INLINE
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std::vector<uintptr_t> capture_frames(size_t skip, size_t max_depth) {
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std::vector<void*> addrs(std::min(hard_max_frames, max_depth), nullptr);
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int n_frames = CaptureStackBackTrace(
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static_cast<ULONG>(skip + 1),
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static_cast<ULONG>(addrs.size()),
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addrs.data(),
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NULL
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);
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// I hate the copy here but it's the only way that isn't UB
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std::vector<uintptr_t> frames(n_frames, 0);
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for(std::size_t i = 0; i < n_frames; i++) {
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// On x86/x64/arm, as far as I can tell, the frame return address is always one after the call
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// So we just decrement to get the pc back inside the `call` / `bl`
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// This is done with _Unwind too but conditionally based on info from _Unwind_GetIPInfo.
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frames[i] = reinterpret_cast<uintptr_t>(addrs[i]) - 1;
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}
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return frames;
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}
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}
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}
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#endif
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