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| author | Kostya Kortchinsky <kostyak@google.com> | 2017-12-13 16:23:54 +0000 |
|---|---|---|
| committer | Kostya Kortchinsky <kostyak@google.com> | 2017-12-13 16:23:54 +0000 |
| commit | ad977cc9521dd2e264a2cdcbba3b2afc5084d0d3 (patch) | |
| tree | 58bcbf560f646e8ee54971713dbd3ffa0cad8312 /lib/sanitizer_common/sanitizer_syscall_generic.inc | |
| parent | 51bfa63ac5b93a2dedd68044f32ded4cfb0594f9 (diff) | |
[sanitizer] Introduce a vDSO aware timing function
Summary:
See D40657 & D40679 for previous versions of this patch & description.
A couple of things were fixed here to have it not break some bots.
Weak symbols can't be used with `SANITIZER_GO` so the previous version was
breakin TsanGo. I set up some additional local tests and those pass now.
I changed the workaround for the glibc vDSO issue: `__progname` is initialized
after the vDSO and is actually public and of known type, unlike
`__vdso_clock_gettime`. This works better, and with all compilers.
The rest is the same.
Reviewers: alekseyshl
Reviewed By: alekseyshl
Subscribers: srhines, kubamracek, krytarowski, llvm-commits, #sanitizers
Differential Revision: https://reviews.llvm.org/D41121
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@320594 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/sanitizer_common/sanitizer_syscall_generic.inc')
| -rw-r--r-- | lib/sanitizer_common/sanitizer_syscall_generic.inc | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/lib/sanitizer_common/sanitizer_syscall_generic.inc b/lib/sanitizer_common/sanitizer_syscall_generic.inc index 138d5ca90..ccc6dc360 100644 --- a/lib/sanitizer_common/sanitizer_syscall_generic.inc +++ b/lib/sanitizer_common/sanitizer_syscall_generic.inc @@ -36,6 +36,7 @@ # define SYS_sigaltstack SYS___sigaltstack14 # define SYS_sigprocmask SYS___sigprocmask14 # define SYS_nanosleep SYS___nanosleep50 +# define SYS_clock_gettime SYS___clock_gettime50 # if SANITIZER_WORDSIZE == 64 # define internal_syscall_ptr __syscall # else |