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Implement RtlCaptureStackBackTrace

This commit is contained in:
RadWolfie 2022-03-30 12:56:56 -05:00
parent c723c56e4a
commit 1d030aa41f
1 changed files with 42 additions and 2 deletions
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44
src/core/kernel/exports/EmuKrnlRtl.cpp
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@ -294,6 +294,7 @@ XBSYSAPI EXPORTNUM(265) xbox::void_xt NTAPI xbox::RtlCaptureContext
// ******************************************************************
// * 0x010A - RtlCaptureStackBackTrace()
// ******************************************************************
// Source: ReactOS
XBSYSAPI EXPORTNUM(266) xbox::ushort_xt NTAPI xbox::RtlCaptureStackBackTrace
(
IN ulong_xt FramesToSkip,
@ -309,9 +310,48 @@ XBSYSAPI EXPORTNUM(266) xbox::ushort_xt NTAPI xbox::RtlCaptureStackBackTrace
LOG_FUNC_ARG_OUT(BackTraceHash)
LOG_FUNC_END;
LOG_UNIMPLEMENTED();
PVOID Frames[2 * 64];
ulong_xt FrameCount;
ulong_xt Hash = 0;
ushort_xt i;
RETURN(NULL);
/* Skip a frame for the caller */
FramesToSkip++;
/* Don't go past the limit */
if ((FramesToCapture + FramesToSkip) >= 128) {
return 0;
}
/* Do the back trace */
FrameCount = RtlWalkFrameChain(Frames, FramesToCapture + FramesToSkip, 0);
/* Make sure we're not skipping all of them */
if (FrameCount <= FramesToSkip) {
return 0;
}
/* Loop all the frames */
for (i = 0; i < FramesToCapture; i++) {
/* Don't go past the limit */
if ((FramesToSkip + i) >= FrameCount) {
break;
}
/* Save this entry and hash it */
BackTrace[i] = Frames[FramesToSkip + i];
Hash += reinterpret_cast<ulong_xt>(BackTrace[i]);
}
/* Write the hash */
if (BackTraceHash) {
*BackTraceHash = Hash;
}
/* Clear the other entries and return count */
RtlFillMemoryUlong(Frames, 128, 0);
RETURN(i);
}
// ******************************************************************