diff options
| author | Kostya Kortchinsky <kostyak@google.com> | 2017-08-14 14:53:47 +0000 |
|---|---|---|
| committer | Kostya Kortchinsky <kostyak@google.com> | 2017-08-14 14:53:47 +0000 |
| commit | 83db677110a0953642661a2e526521e30c358c53 (patch) | |
| tree | 83e3ae739a17343b4a7d56e6aed1b424c50fe35b /lib/profile/InstrProfilingUtil.c | |
| parent | 1c85aaf50b80c5e1233ca176b13359d39b040c02 (diff) | |
[sanitizers] Add a blocking boolean to GetRandom prototype
Summary:
On platforms with `getrandom`, the system call defaults to blocking. This
becomes an issue in the very early stage of the boot for Scudo, when the RNG
source is not set-up yet: the syscall will block and we'll stall.
Introduce a parameter to specify that the function should not block, defaulting
to blocking as the underlying syscall does.
Update Scudo to use the non-blocking version.
Reviewers: alekseyshl
Reviewed By: alekseyshl
Subscribers: llvm-commits, kubamracek
Differential Revision: https://reviews.llvm.org/D36399
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@310839 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/profile/InstrProfilingUtil.c')
0 files changed, 0 insertions, 0 deletions