summaryrefslogtreecommitdiffstats
path: root/libc/arch-arm/bionic/syscall.S
diff options
context:
space:
mode:
Diffstat (limited to 'libc/arch-arm/bionic/syscall.S')
-rw-r--r--libc/arch-arm/bionic/syscall.S71
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