3 files changed, 33 insertions, 0 deletions
diff --git a/sys/rt/arm/rt1.s b/sys/rt/arm/rt1.s
new file mode 100644
index 0000000..2adfee8
--- /dev/null
+++ b/sys/rt/arm/rt1.s
@@ -0,0 +1,11 @@
+.extern rt·thunk
+
+.text
+.global _start
+.type _start, %function
+_start:
+ 	mov fp, #0
+ 	mov lr, #0
+	mov a1, sp
+	and sp, sp, #-16
+ 	bl rt·thunk
diff --git a/sys/rt/arm/rti.s b/sys/rt/arm/rti.s
new file mode 100644
index 0000000..18dc1e4
--- /dev/null
+++ b/sys/rt/arm/rti.s
@@ -0,0 +1,13 @@
+.syntax unified
+
+.section .init
+.global _init
+.type _init,%function
+_init:
+	push {r0,lr}
+
+.section .fini
+.global _fini
+.type _fini,%function
+_fini:
+	push {r0,lr}
diff --git a/sys/rt/arm/rtn.s b/sys/rt/arm/rtn.s
new file mode 100644
index 0000000..dc020f9
--- /dev/null
+++ b/sys/rt/arm/rtn.s
@@ -0,0 +1,9 @@
+.syntax unified
+
+.section .init
+	pop {r0,lr}
+	bx lr
+
+.section .fini
+	pop {r0,lr}
+	bx lr