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Re: [PATCH] S390: Call direct system calls for socket operations.

ping

On 10/14/2015 10:02 AM, Stefan Liebler wrote:


On 10/13/2015 01:54 PM, Adhemerval Zanella wrote:

I would prefer to not add another arch-specific implementation, but
instead
use something like __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL and use accept4
directly in sysdeps/unix/sysv/linux/accept.c. Same for recv and send.


That sounds reasonable. Here is the updated patch.

---
2015-10-14  Stefan Liebler  <stli@linux.vnet.ibm.com>

     * sysdeps/unix/sysv/linux/s390/kernel-features.h:
     (__ASSUME_*_SYSCALL) Define new macros.
     * sysdeps/unix/sysv/linux/s390/s390-64/syscalls.list:
     Remove socketcall syscalls.
     * sysdeps/unix/sysv/linux/accept.c (__libc_accept):
     Use accept4 if defined __ASSUME_ACCEPT4_FOR_ACCEPT_SYSCALL.
     * sysdeps/unix/sysv/linux/recv.c (__libc_recv):
     Use recvfrom if defined __ASSUME_RECVFROM_FOR_RECV_SYSCALL.
     * sysdeps/unix/sysv/linux/send.c (__libc_send):
     Use sendto if defined __ASSUME_SENDTO_FOR_SEND_SYSCALL.
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