The functions wcstoimax() and wcstoumax() are thread safe with
exceptions.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
NOTES already described how glibc differs from POSIX.
Add a pointer to that text from the point in DESCRIPTION
where hints==NULL is discussed.
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
events==0 does not mean that revents is always returned as
zero. The "output only" events (POLLHUP, POLLERR, POLLNVAL)
can still be returned.
See https://bugzilla.kernel.org/show_bug.cgi?id=61911
Reported-by: Paolo Bonzini <bonzini@gnu.org>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
See https://bugzilla.kernel.org/show_bug.cgi?id=42705
Reported-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Reported-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
It turns out that the perf_event mmap page rdpmc/time setting was
broken, dating back to the introduction of the feature. Due
to a mistake with a bitfield, two different values mapped to
the same feature bit.
A new somewhat backwards compatible interface was introduced
in Linux 3.12. A much longer report on the issue can be found
here:
https://lwn.net/Articles/567894/
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
A new perf_event related ioctl, PERF_EVENT_IOC_ID, was added
in Linux 3.12.
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
A new PERF_SAMPLE_IDENTIFIER sample type was added in Linux 3.12.
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Support for the PERF_COUNT_SW_DUMMY event type was added in
Linux 3.12.
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fallocate() zeroes only space that did not previously contain
data, but leaves existing data untouched.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The function wcwidth() is thread safe with exceptions.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The function wctype() is thread safe with exceptions.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The function wctrans() is thread safe with exceptions.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The PERF_EVENT_IOC_PERIOD ioctl was broken until 2.6.36,
and it turns out that the ARM architecture has some
differing behavior too.
Reported-by: Andreas Sandberg <andreas.sandberg@it.uu.se>
Signed-off-by: Vince Weaver <vincent.weaver@maine.edu>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The functions futimes() and lutimes() are thread safe.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The functions erfc(), erfcf() and erfcl() are thread safe.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The functions erf(), erff() and erfl() are thread safe.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The functions expm1(), expm1f() and expm1l() are thread safe.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The functions cos(), cosf() and cosl() are thread safe.
Signed-off-by: Peng Haitao <penght@cn.fujitsu.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Peng Haitao