1/* libunwind - a platform-independent unwind library
2   Copyright (C) 2003-2004 Hewlett-Packard Co
3	Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
4
5This file is part of libunwind.
6
7Permission is hereby granted, free of charge, to any person obtaining
8a copy of this software and associated documentation files (the
9"Software"), to deal in the Software without restriction, including
10without limitation the rights to use, copy, modify, merge, publish,
11distribute, sublicense, and/or sell copies of the Software, and to
12permit persons to whom the Software is furnished to do so, subject to
13the following conditions:
14
15The above copyright notice and this permission notice shall be
16included in all copies or substantial portions of the Software.
17
18THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
19EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
21NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
22LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
23OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
24WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
25
26#define SIG_SETMASK	2
27
28	.global _UI_siglongjmp_cont
29	.global sigprocmask
30
31	.align 32
32	.proc siglongjmp_continuation
33siglongjmp_continuation:
34_UI_siglongjmp_cont:		// non-function label for siglongjmp.c
35	.prologue
36	.save rp, r15
37	.body
38	nop 0
39	nop 0
40	br.call.sptk.many b6 = .next
41	;;
42	.prologue
43	.save ar.pfs, r33
44.next:	alloc loc1 = ar.pfs, 0, 3, 3, 0
45	/*
46	 * Note: we can use the scratch stack are because the caller
47	 * of sigsetjmp() by definition is not a leaf-procedure.
48	 */
49	st8 [sp] = r17			// store signal mask
50	.save rp, loc0
51	mov loc0 = r15			// final continuation point
52	;;
53	.body
54	mov loc2 = r16			// value to return in r8
55
56	mov out0 = SIG_SETMASK
57	mov out1 = sp
58	mov out2 = r0
59	br.call.sptk.many rp = sigprocmask
60	;;
61	mov rp = loc0
62	mov ar.pfs = loc1
63	mov r8 = loc2
64	br.ret.sptk.many rp
65	.endp siglongjmp_continuation
66#ifdef __linux__
67	/* We do not need executable stack.  */
68	.section	.note.GNU-stack,"",@progbits
69#endif
70