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| author | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2018-03-27 21:23:52 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2018-03-27 21:28:58 -0300 |
| commit | d39c0a459ef32a41daac4840859bf304d931adab (patch) | |
| tree | c6e589a49857e4ba6ebe985a0a543802d55e1e4a /sysdeps/unix/sysv/linux/mq_timedreceive.c | |
| parent | cc8a1620eb97ccddd337d157263c13c57b39ab71 (diff) | |
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sparc: Fix arch_fork definition
This patch fixes 3dc214977 for sparc. Different than other architectures
SPARC kernel Kconfig does not define CONFIG_CLONE_BACKWARDS, however it
has the same ABI as if it did, implemented by sparc-specific code
(sparc_do_fork).
It also has a unique return value convention for clone:
Parent --> %o0 == child's pid, %o1 == 0
Child --> %o0 == parent's pid, %o1 == 1
Which required a special macro to correct issue the syscall
(INLINE_CLONE_SYSCALL).
Checked on sparc64-linux-gnu and sparcv9-linux-gnu.
* sysdeps/unix/sysv/linux/arch-fork.h [__ASSUME_CLONE_BACKWARDS]
(arch_fork): Issue INLINE_CLONE_SYSCALL if defined.
* sysdeps/unix/sysv/linux/sparc/kernel-features.h
(__ASSUME_CLONE_BACKWARDS): Define.
Diffstat (limited to 'sysdeps/unix/sysv/linux/mq_timedreceive.c')
0 files changed, 0 insertions, 0 deletions