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7 Commits

Author SHA1 Message Date
Serge Rogatch 4ab7a30538 [XRay][AArch64] An attempt to fix test patching-unpatching.cc by flushing the instruction cache after code modification 
Summary: This patch attempts to fix test patching-unpatching.cc . The new code flushes the instruction cache after modifying the program at runtime.

Reviewers: dberris, rengolin, pelikan, rovka

Subscribers: rovka, llvm-commits, iid_iunknown, aemerson

Differential Revision: https://reviews.llvm.org/D27996

llvm-svn: 291568
 2017-01-10 16:16:33 +00:00
Renato Golin ece8de7c23 Revert "[XRay][AArch64] An attempt to fix test patching-unpatching.cc by flushing the instruction cache after code modification" 
This reverts commit r290452, not quite there yet. We need to test this
offline.

llvm-svn: 290453
 2016-12-23 21:58:39 +00:00
Serge Rogatch 4ee228bf73 [XRay][AArch64] An attempt to fix test patching-unpatching.cc by flushing the instruction cache after code modification 
Summary: This patch attempts to fix test patching-unpatching.cc . The new code flushes the instruction cache after modifying the program at runtime.

Reviewers: dberris, rengolin

Subscribers: llvm-commits, iid_iunknown, aemerson

Differential Revision: https://reviews.llvm.org/D27996

llvm-svn: 290452
 2016-12-23 21:21:01 +00:00
Renato Golin fe8bbb2333 Revert "[XRay][AArch64] An attempt to fix test patching-unpatching.cc by flushing the instruction cache after code modification" 
This reverts commit r290354, as it broke the build. We need to make sure
this builds on AArch64 before committing again.

llvm-svn: 290362
 2016-12-22 19:38:04 +00:00
Serge Rogatch 93fb15788a [XRay][AArch64] An attempt to fix test patching-unpatching.cc by flushing the instruction cache after code modification 
Summary: This patch attempts to fix test patching-unpatching.cc . The new code flushes the instruction cache after modifying the program at runtime.

Reviewers: dberris, rengolin

Subscribers: llvm-commits, iid_iunknown, aemerson

Differential Revision: https://reviews.llvm.org/D27996

llvm-svn: 290354
 2016-12-22 18:48:36 +00:00
Serge Rogatch 3c265b55fc [XRay][AArch64] Disable the unstable test XRay-aarch64-linux::patching-unpatching.cc 
Summary:
The test `XRay-aarch64-linux::patching-unpatching.cc` sometimes passes, sometimes fails on buildbots.
This patch disables test `patching-unpatching.cc` for AArch64 targets.

Reviewers: rengolin, dberris

Subscribers: llvm-commits, iid_iunknown, aemerson

Differential Revision: https://reviews.llvm.org/D27528

llvm-svn: 288988
 2016-12-07 22:00:02 +00:00
Dean Michael Berris 68e74847bf [compiler-rt][XRay] Implement __xray_unpatch() and __xray_remove_handler() 
Summary:
We also add one test (and the XRay testing infrastructure) to exercise
the patching and unpatching code. This uses the XRay API exported
through the headers as well, installing a custom log handler.

Depends on D23101 for the updated emitted code alignment for the
return/entry sleds.

Reviewers: rSerge, echristo, rnk

Subscribers: tberghammer, danalbert, srhines, mehdi_amini, llvm-commits

Differential Revision: https://reviews.llvm.org/D23154

llvm-svn: 277971
 2016-08-08 03:10:22 +00:00