glibc/sysdeps/unix/sysv/linux/sh
Joseph Myers e3b0580d0d Simplify accept4, recvmmsg, sendmmsg code.
The accept4, recvmmsg and sendmmsg functions had macros
__ASSUME_*_SYSCALL_WITH_SOCKETCALL.  Before we could assume kernels
with the relevant functionality, these macros represented the
conditions under which, on a socketcall architecture, glibc could just
call the syscall unconditionally and not have to deal with socketcall
at all for those functions, because if the syscall didn't work for
them the socketcall call wouldn't either.

Now we can assume kernels with the relevant functionality, the only
question is whether we can assume the syscall is present; if not, we
are on a socketcall architecture and just use socketcall instead.
Thus, this patch removes the macros that are no longer necessary, and
simplifies the code for accept4, recvmmsg and sendmmsg to use the same
logic as the other C implementations of socket functions that may use
a syscall or socketcall depending on kernel support.

Tested for x86_64 and x86.

	* sysdeps/unix/sysv/linux/accept4.c (accept4): Use syscall if
	[__ASSUME_ACCEPT4_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/recvmmsg.c (recvmmsg): Use syscall if
	[__ASSUME_RECVMMSG_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/sendmmsg.c (__sendmmsg): Use syscall if
	[__ASSUME_SENDMMSG_SYSCALL], otherwise socketcall.
	* sysdeps/unix/sysv/linux/kernel-features.h
	(__ASSUME_ACCEPT4_SYSCALL): Move to general list of macros for
	socket syscalls.
	(__ASSUME_RECVMMSG_SYSCALL): Likewise.
	(__ASSUME_SENDMMSG_SYSCALL): Likewise.
	* sysdeps/unix/sysv/linux/i386/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove.
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/microblaze/kernel-features.h
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Remove.
	* sysdeps/unix/sysv/linux/powerpc/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sh/kernel-features.h
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	* sysdeps/unix/sysv/linux/sparc/kernel-features.h
	(__ASSUME_ACCEPT4_SYSCALL_WITH_SOCKETCALL): Likewise.
	(__ASSUME_RECVMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
	(__ASSUME_SENDMMSG_SYSCALL_WITH_SOCKETCALL): Likewise.
2017-05-09 21:59:36 +00:00
..
bits Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sh3 Bug 21053: sh: Reduce namespace pollution from sys/ucontext.h 2017-01-24 09:20:06 -02:00
sh4 Bug 21053: sh: Reduce namespace pollution from sys/ucontext.h 2017-01-24 09:20:06 -02:00
sys Bug 21053: sh: Reduce namespace pollution from sys/ucontext.h 2017-01-24 09:20:06 -02:00
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
arch-fork.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
atomic-machine.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
brk.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data SH: Consolidate nptl/ subdirectories under linux/..... 2014-06-23 09:23:12 -07:00
clone.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
configure Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
configure.ac Move architecture cases out of sysdeps/unix/sysv/linux/configure.ac. 2014-06-24 20:53:03 +00:00
fcntl.c Update. 2000-10-26 02:34:17 +00:00
fxstat.c Update. 2000-06-12 20:50:37 +00:00
fxstatat.c * io/Makefile (routines): Add fstatat, fstatat64, fxstatat, fxstatat64, 2005-11-11 20:02:07 +00:00
Implies NPTL is no longer an add-on! 2014-07-07 09:29:06 -07:00
kernel-features.h Simplify accept4, recvmmsg, sendmmsg code. 2017-05-09 21:59:36 +00:00
ld.abilist ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
libanl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libBrokenLocale.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libc.abilist New string function explicit_bzero (from OpenBSD). 2016-12-16 16:21:54 -05:00
libcrypt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libdl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libm.abilist Add fromfp functions. 2016-12-31 00:40:59 +00:00
libnsl.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libpthread.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libresolv.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
librt.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libthread_db.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
libutil.abilist Simplify the abilist format 2015-11-06 13:58:53 +01:00
localplt.data ld.so: Remove __libc_memalign 2016-11-30 16:23:58 +01:00
lockf64.c Update. 2000-10-26 02:34:17 +00:00
lowlevel-atomic.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lxstat.c Update. 2000-06-12 20:50:37 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile SH: ____longjmp_chk for GNU/Linux with sigaltstack support. 2012-06-23 11:56:02 +02:00
pipe.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
profil-counter.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
pt-vfork.S SH: Consolidate NPTL/non versions of vfork 2014-06-02 14:29:19 -07:00
shlib-versions Remove configuration name patterns from shlib-versions. 2014-09-12 12:28:47 +00:00
sigaltstack-offsets.sym SH: ____longjmp_chk for GNU/Linux with sigaltstack support. 2012-06-23 11:56:02 +02:00
sigcontextinfo.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
smp.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
syscalls.list Fix linux personality syscall wrapper 2015-12-31 00:17:48 +00:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstat.c Update. 2000-06-12 20:50:37 +00:00