glibc/sysdeps/unix/sysv/linux/i386
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
..
i686 Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
i786
____longjmp_chk.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
_exit.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
alphasort64.c 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
brk.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
c++-types.data
clone.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
configure Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
configure.ac Require Linux kernel 3.2 or later on x86 / x86_64. 2017-05-08 10:45:20 +00:00
dl-librecon.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
dl-procinfo.h x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391] 2017-05-03 13:44:35 -07:00
dl-sysdep.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fcntl.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
fxstatat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
get_clockfreq.c Narrowing the visibility of libc-internal.h even further. 2017-03-01 20:33:46 -05:00
getcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getdents64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
getmsg.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
gettimeofday.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
glob64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Implies
init-first.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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
ldconfig.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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-do-syscall.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
libc-lowlevellock.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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
lll_timedlock_wait.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
lll_timedwait_tid.c Move sysdeps/unix/sysv/linux/i386/i486/*.? to i386 2015-09-30 10:12:44 -07:00
localplt.data Document and fix --enable-bind-now [BZ #21015] 2017-03-02 14:44:28 +01:00
lockf64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lowlevellock.h robust mutexes: Fix broken x86 assembly by removing it 2017-01-13 17:16:07 +01:00
lowlevellock.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
lxstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
makecontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
Makefile Build divdi3 only for architecture that required it 2017-04-06 15:14:34 -03:00
olddirent.h 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
putmsg.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readdir64_r.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readdir64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
readelflib.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
register-dump.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
scandir64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
setcontext.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
shlib-versions
sigaction.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
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
swapcontext.S 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 Consolidate Linux setrlimit and getrlimit implementation 2016-11-17 15:54:22 -02:00
sysdep-cancel.h Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
sysdep.h Rework -fno-omit-frame-pointer support on i386 2017-02-17 18:06:29 -02:00
time.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
ucontext_i.sym
Versions Revert {send,sendm,recv,recvm}msg conformance changes 2016-06-10 11:58:16 -03:00
versionsort64.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
vfork.S Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00
xstat.c Update copyright dates with scripts/update-copyrights. 2017-01-01 00:14:16 +00:00