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| 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 | 29e16deb177528da8858d9866381cf12e40b406a (patch) | |
| tree | d5cd3ab80c9420014d607793cf2e450b5cec7f4a /compiler-rt/lib/xray/xray_mips.cc | |
| parent | a7bbe4481a79772d09553b0e01d3024f1dd96ed8 (diff) | |
| download | bcm5719-llvm-29e16deb177528da8858d9866381cf12e40b406a.tar.gz bcm5719-llvm-29e16deb177528da8858d9866381cf12e40b406a.zip | |
[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
llvm-svn: 302857
Diffstat (limited to 'compiler-rt/lib/xray/xray_mips.cc')
| -rw-r--r-- | compiler-rt/lib/xray/xray_mips.cc | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/compiler-rt/lib/xray/xray_mips.cc b/compiler-rt/lib/xray/xray_mips.cc index c8ff39936c5..cd863304db2 100644 --- a/compiler-rt/lib/xray/xray_mips.cc +++ b/compiler-rt/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 { |
