Commit 21d93e2e authored Aug 15, 2010 by Mikael Pettersson Committed by Russell King Aug 15, 2010

ARM: 6329/1: wire up sys_accept4() on ARM



sys_accept4() was added in kernel 2.6.28, but ARM was not updated
to include it.  The number and types of parameters is such that
no ARM-specific processing is needed, so wiring up sys_accept4()
just requires defining __NR_accept4 and adding a direct call in
the syscall entry table.

Tested with an EABI 2.6.35 kernel and Ulrich Drepper's original
accept4() test program, modified to define __NR_accept4 for ARM.

Using the updated unistd.h also eliminates a warning then building
glibc (2.10.2 and newer) about accept4() being unimplemented.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

parent bd365591

arch/arm/include/asm/unistd.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -392,6 +392,7 @@
		#define __NR_rt_tgsigqueueinfo (__NR_SYSCALL_BASE+363)
		#define __NR_perf_event_open (__NR_SYSCALL_BASE+364)
		#define __NR_recvmmsg (__NR_SYSCALL_BASE+365)
		#define __NR_accept4 (__NR_SYSCALL_BASE+366)

		/*
		* The following SWIs are ARM private.

arch/arm/kernel/calls.S

+1 −0

Original line number	Diff line number	Diff line
		@@ -375,6 +375,7 @@
		CALL(sys_rt_tgsigqueueinfo)
		CALL(sys_perf_event_open)
		/* 365 */ CALL(sys_recvmmsg)
		CALL(sys_accept4)
		#ifndef syscalls_counted
		.equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
		#define syscalls_counted

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