about summary refs log tree commit diff
path: root/src/internal/arm/syscall.s
diff options
context:
space:
mode:
Diffstat (limited to 'src/internal/arm/syscall.s')
-rw-r--r--src/internal/arm/syscall.s15
1 files changed, 15 insertions, 0 deletions
diff --git a/src/internal/arm/syscall.s b/src/internal/arm/syscall.s
new file mode 100644
index 00000000..c5ae25c3
--- /dev/null
+++ b/src/internal/arm/syscall.s
@@ -0,0 +1,15 @@
+.global __syscall
+.type __syscall,%function
+__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}
+	svc 0
+	ldmfd sp!,{r4,r5,r6,r7}
+	tst lr,#1
+	moveq pc,lr
+	bx lr