diff options
| author | Dean Michael Berris <dberris@google.com> | 2017-05-12 01:07:41 +0000 |
|---|---|---|
| committer | Dean Michael Berris <dberris@google.com> | 2017-05-12 01:07:41 +0000 |
| commit | f9947480f58b10f2460df24287f95357082b6563 (patch) | |
| tree | d9b7f4f86d716227a89c4a94bb3cc1e79af3559e /lib/xray/xray_mips.cc | |
| parent | a5c91c22f175eddf6f2d4d244dce6ce6a2e3c9e1 (diff) | |
[XRay][compiler-rt] Runtime changes to support custom event logging
Summary:
This change implements support for the custom event logging sleds and
intrinsics at runtime. For now it only supports handling the sleds in
x86_64, with the implementations for other architectures stubbed out to
do nothing.
NOTE: Work in progress, uploaded for exposition/exploration purposes.
Depends on D27503, D30018, and D33032.
Reviewers: echristo, javed.absar, timshen
Subscribers: mehdi_amini, nemanjai, llvm-commits
Differential Revision: https://reviews.llvm.org/D30630
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302857 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/xray/xray_mips.cc')
| -rw-r--r-- | lib/xray/xray_mips.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/lib/xray/xray_mips.cc b/lib/xray/xray_mips.cc index c8ff39936..cd863304d 100644 --- a/lib/xray/xray_mips.cc +++ b/lib/xray/xray_mips.cc @@ -95,7 +95,8 @@ inline static bool patchSled(const bool Enable, const uint32_t FuncId, // B #44 if (Enable) { - uint32_t LoTracingHookAddr = reinterpret_cast<int32_t>(TracingHook) & 0xffff; + uint32_t LoTracingHookAddr = + reinterpret_cast<int32_t>(TracingHook) & 0xffff; uint32_t HiTracingHookAddr = (reinterpret_cast<int32_t>(TracingHook) >> 16) & 0xffff; uint32_t LoFunctionID = FuncId & 0xffff; @@ -151,6 +152,12 @@ bool patchFunctionTailExit(const bool Enable, const uint32_t FuncId, return patchSled(Enable, FuncId, Sled, __xray_FunctionExit); } +bool patchCustomEvent(const bool Enable, const uint32_t FuncId, + const XRaySledEntry &Sled) XRAY_NEVER_INSTRUMENT { + // FIXME: Implement in mips? + return false; +} + } // namespace __xray extern "C" void __xray_ArgLoggerEntry() XRAY_NEVER_INSTRUMENT { |