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| author | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
|---|---|---|
| committer | Florian Weimer <fweimer@redhat.com> | 2021-12-09 09:49:32 +0100 |
| commit | e3e589829d16af9f7e73c7b70f74f3c5d5003e45 (patch) | |
| tree | f52c82410e4faed193d05dcf28c2586d6f83de16 /manual | |
| parent | 1d350aa06091211863e41169729cee1bca39f72f (diff) | |
| download | glibc-e3e589829d16af9f7e73c7b70f74f3c5d5003e45.tar glibc-e3e589829d16af9f7e73c7b70f74f3c5d5003e45.tar.gz glibc-e3e589829d16af9f7e73c7b70f74f3c5d5003e45.tar.bz2 glibc-e3e589829d16af9f7e73c7b70f74f3c5d5003e45.zip | |
nptl: Add glibc.pthread.rseq tunable to control rseq registration
This tunable allows applications to register the rseq area instead
of glibc.
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
Diffstat (limited to 'manual')
| -rw-r--r-- | manual/tunables.texi | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/manual/tunables.texi b/manual/tunables.texi index 10f4d75993..5d50b90f64 100644 --- a/manual/tunables.texi +++ b/manual/tunables.texi @@ -424,6 +424,16 @@ The value is measured in bytes. The default is @samp{41943040} (fourty mibibytes). @end deftp +@deftp Tunable glibc.pthread.rseq +The @code{glibc.pthread.rseq} tunable can be set to @samp{0}, to disable +restartable sequences support in @theglibc{}. This enables applications +to perform direct restartable sequence registration with the kernel. +The default is @samp{1}, which means that @theglibc{} performs +registration on behalf of the application. + +Restartable sequences are a Linux-specific extension. +@end deftp + @node Hardware Capability Tunables @section Hardware Capability Tunables @cindex hardware capability tunables |