bionic/libc/arch-sh/syscalls/readahead.S
Bruce Beare e30e909363 sreadahead: adding readahead system call into bionic libc
Add bionic libc to support readahead system call.
This is needed to enable sreadahead to work.

Change-Id: I3856e1a3833db82e6cf42fd34af7631bd40cc723
Author: Winson Yung <winson.w.yung@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
2012-01-03 15:18:04 -08:00

33 lines
554 B
ArmAsm

/* autogenerated by gensyscalls.py */
#include <sys/linux-syscalls.h>
.text
.type readahead, @function
.globl readahead
.align 4
readahead:
/* invoke trap */
mov.l 0f, r3 /* trap num */
trapa #(4 + 0x10)
/* check return value */
cmp/pz r0
bt __NR_readahead_end
/* keep error number */
sts.l pr, @-r15
mov.l 1f, r1
jsr @r1
mov r0, r4
lds.l @r15+, pr
__NR_readahead_end:
rts
nop
.align 2
0: .long __NR_readahead
1: .long __set_syscall_errno