diff options
| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-11-01 11:49:05 -0200 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-11-06 17:37:57 -0200 |
| commit | 8b0e795aaa445e9167aa07b282c5720b35342c07 (patch) | |
| tree | 07b62733e97ec88239289dc89b208c83b2a51ceb /ChangeLog | |
| parent | a1a638dda91ed7739a066477908511e53840603b (diff) | |
| download | glibc-8b0e795aaa445e9167aa07b282c5720b35342c07.zip glibc-8b0e795aaa445e9167aa07b282c5720b35342c07.tar.gz glibc-8b0e795aaa445e9167aa07b282c5720b35342c07.tar.bz2 | |
Simplify Linux sig{timed}wait{info} implementations
This patch simplifies sig{timed}wait{info} by:
- Assuming __NR_rt_sigtimedwait existence on all architectures due minimum
kernel version requirement (it pre-dates Linux git inclusion for Linux
2.6.12).
- Call __sigtimedwait on both sigwait and sigwaitinfo.
- Now that sigwait is based on an internal sigtimedwait call and it is
present of both libc.so and libpthread.so we need to add an external
private definition of __sigtimedwait for libpthread.so call.
Checked on x86_64-linux-gnu.
* sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add
__sigtimedwait.
* sysdeps/unix/sysv/linux/sigtimedwait.c: Simplify includes and
assume __NR_rt_sigtimedwait.
* sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Call __sigtimedwait
and add LIBC_CANCEL_HANDLED for cancellation marking.
* sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise.
Signed-off-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Zack Weinberg <zackw@panix.com>
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 8 |
1 files changed, 8 insertions, 0 deletions
@@ -1,5 +1,13 @@ 2017-11-06 Adhemerval Zanella <adhemerval.zanella@linaro.org> + * sysdeps/unix/sysv/linux/Versions (libc) [GLIBC_PRIVATE]: Add + __sigtimedwait. + * sysdeps/unix/sysv/linux/sigtimedwait.c: Simplify includes and + assume __NR_rt_sigtimedwait. + * sysdeps/unix/sysv/linux/sigwait.c (__sigwait): Call __sigtimedwait + and add LIBC_CANCEL_HANDLED for cancellation marking. + * sysdeps/unix/sysv/linux/sigwaitinfo.c (__sigwaitinfo): Likewise. + * sysdeps/arm/armv7/multiarch/Makefile [$(subdir) = string] (sysdeps_routines): Add memchr_noneon. * sysdeps/arm/armv7/multiarch/ifunc-memchr.h: New file. |