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| 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 /sysdeps/unix/sysv/linux/Versions | |
| parent | a1a638dda91ed7739a066477908511e53840603b (diff) | |
| download | glibc-8b0e795aaa445e9167aa07b282c5720b35342c07.tar.gz | |
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 'sysdeps/unix/sysv/linux/Versions')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Versions | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions index 6c9e06f4f9..d3dbcde8c9 100644 --- a/sysdeps/unix/sysv/linux/Versions +++ b/sysdeps/unix/sysv/linux/Versions @@ -172,6 +172,7 @@ libc { __open_nocancel; __read_nocancel; __close_nocancel; + __sigtimedwait; # functions used by nscd __netlink_assert_response; } |