1 files changed, 79 insertions, 0 deletions
diff --git a/newlib/libc/machine/csky/setjmp.S b/newlib/libc/machine/csky/setjmp.S
new file mode 100644
index 000000000..b93687319
--- /dev/null
+++ b/newlib/libc/machine/csky/setjmp.S
@@ -0,0 +1,79 @@
+/* Copyright (c) 2020  C-SKY Microsystems All rights reserved.
+
+   This copyrighted material is made available to anyone wishing to use,
+   modify, copy, or redistribute it subject to the terms and conditions
+   of the FreeBSD License.   This program is distributed in the hope that
+   it will be useful, but WITHOUT ANY WARRANTY expressed or implied,
+   including the implied warranties of MERCHANTABILITY or FITNESS FOR
+   A PARTICULAR PURPOSE.  A copy of this license is available at
+   http://www.opensource.org/licenses.
+*/
+
+	.section	.text
+	.align	3
+	.globl	setjmp
+	.type	setjmp,@function
+	.globl	longjmp
+	.type	longjmp,@function
+
+setjmp:
+
+#if defined(__CK801__)
+	stw	r4, (r0, 0)
+	stw    	r5, (r0, 4)
+	stw    	r6, (r0, 8)
+	stw    	r7, (r0, 12)
+	stw    	r8, (r0, 16)
+	stw    	r15, (r0, 20)
+	stw    	sp, (r0, 24)
+#elif defined(__CK802__)
+	stm	r4-r11, (r0)
+	stw    	r15, (r0, 32)
+	stw    	sp, (r0, 36)
+#else
+	stm    	r4-r11, (r0)
+	stw    	r15, (r0, 32)
+	stw    	r16, (r0, 36)
+	stw    	r17, (r0, 40)
+	stw    	r26, (r0, 44)
+	stw    	r27, (r0, 48)
+	stw    	r28, (r0, 52)
+	stw    	r29, (r0, 56)
+	stw    	r30, (r0, 60)
+	stw    	r31, (r0, 64)
+	stw    	sp, (r0, 68)
+#endif
+	movi   	r0, 0
+	rts
+
+longjmp:
+#if defined(__CK801__)
+	ldw	r4, (r0, 0)
+	ldw    	r5, (r0, 4)
+	ldw    	r6, (r0, 8)
+	ldw    	r7, (r0, 12)
+	ldw    	r8, (r0, 16)
+	ldw    	r15, (r0, 20)
+	ldw    	sp, (r0, 24)
+#elif defined(__CK802__)
+	ldm	r4-r11, (r0)
+	ldw    	r15, (r0, 32)
+	ldw    	sp, (r0, 36)
+#else
+	ldm   	r4-r11, (r0)
+	ldw    	r15, (r0, 32)
+	ldw    	r16, (r0, 36)
+	ldw    	r17, (r0, 40)
+	ldw    	r26, (r0, 44)
+	ldw    	r27, (r0, 48)
+	ldw    	r28, (r0, 52)
+	ldw    	r29, (r0, 56)
+	ldw    	r30, (r0, 60)
+	ldw    	r31, (r0, 64)
+	ldw    	sp, (r0, 68)
+#endif
+	mov    	r0, r1
+	cmpnei 	r1, 0
+	bt     	1f
+	movi   	r0, 1
+1:	rts