diff options
Diffstat (limited to 'libc/arch-arm/bionic/syscall.S')
-rw-r--r-- | libc/arch-arm/bionic/syscall.S | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/libc/arch-arm/bionic/syscall.S b/libc/arch-arm/bionic/syscall.S new file mode 100644 index 0000000..ada12a6 --- /dev/null +++ b/libc/arch-arm/bionic/syscall.S @@ -0,0 +1,71 @@ +/* + * Copyright (C) 2008 The Android Open Source Project + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT + * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ +#include <sys/linux-syscalls.h> + + + .text + .align 4 + .type syscall,#function + .globl syscall + + .text + .align + +#if __ARM_EABI__ + +syscall: + mov ip, sp + stmfd sp!, {r4, r5, r6, r7} + mov r7, r0 + mov r0, r1 + mov r1, r2 + mov r2, r3 + ldmfd ip, {r3, r4, r5, r6} + swi #0 + ldmfd sp!, {r4, r5, r6, r7} + movs r0, r0 + bxpl lr + b __set_syscall_errno + +#else + +#ifndef __NR_syscall +#define __NR_syscall 113 +#endif + +syscall: + stmfd sp!, {r4, r5, lr} + ldr r4, [sp, #12] + ldr r5, [sp, #16] + swi __NR_syscall + ldmfd sp!, {r4, r5, lr} + movs r0, r0 + bxpl lr + b __set_syscall_errno + +#endif |