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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2016-11-21 17:26:35 -0200 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2017-05-18 18:06:47 -0300 |
| commit | 88499a87cef0a70f381524b9c4951b53bc5184e3 (patch) | |
| tree | b9a4033cd8da062f69f9235c15f58ee32d1b0f14 /ChangeLog | |
| parent | a7fbedff76494b5b694f647e9c681cf8988056ce (diff) | |
| download | glibc-88499a87cef0a70f381524b9c4951b53bc5184e3.tar.gz glibc-88499a87cef0a70f381524b9c4951b53bc5184e3.tar.xz glibc-88499a87cef0a70f381524b9c4951b53bc5184e3.zip | |
posix: Consolidate Linux pause syscall
This patch consolidates the pause Linux implementation on sysdeps/unix/sysv/linux/pause.c. If defined the pause syscall (__NR_pause) will be used, other ppoll with 0 arguments will be used instead. It has the small advantage of generic pause implementation with uses rt_sigprocmask plus rt_sigsuspend because it requires only one syscall and the pause is done atomically regarding signal handling (for instance, pause may not be interrupted if the signal arrives between the rt_sigprocmask and rt_sigsuspend syscall). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/generic/pause.c: Remove file. * sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Likewise. * sysdeps/unix/sysv/linux/sparc/kernel-features.h [__arch64__] (__NR_pause): Undefine. * sysdeps/unix/sysv/linux/pause.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove pause from auto-generation list.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/ChangeLog b/ChangeLog index 5ebd3a04ab..135b5a5e87 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,16 @@ +2017-05-18 Adhemerval Zanella <adhemerval.zanella@linaro.org> + + * sysdeps/unix/sysv/linux/generic/pause.c: Remove file. + * sysdeps/unix/sysv/linux/sparc/sparc64/pause.c: Likewise. + * sysdeps/unix/sysv/linux/sparc/kernel-features.h [__arch64__] + (__NR_pause): Undefine. + * sysdeps/unix/sysv/linux/pause.c: New file. + * sysdeps/unix/sysv/linux/syscalls.list: Remove pause from + auto-generation list. + * sysdeps/unix/sysv/linux/sparc/sparc64/Makefile (CFLAGS-pause.c): + Remove rule. + * posix/Makefile (CFLAGS-pause.c): Remove redundant rule. + 2017-05-18 H.J. Lu <hongjiu.lu@intel.com> * sysdeps/x86_64/multiarch/memcmp.S (__GI_memcmp): Correct |