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#include "jmpbuf.h"
27
28#define SIG_BLOCK 0
29
30	.align 32
31
32	.global __sigsetjmp
33	.global sigprocmask
34
35	.proc __sigsetjmp
36
37__sigsetjmp:
38	.prologue
39	.save ar.pfs, r35
40	alloc loc1 = ar.pfs, 2, 3, 3, 0
41	add out2 = JB_MASK*8, in0
42	.save rp, loc0
43	mov loc0 = rp
44	mov out0 = SIG_BLOCK
45	.body
46	;;
47	cmp.ne p6, p0 = in1, r0
48	mov out1 = r0
49	mov loc2 = ar.bsp
50(p6)	br.call.sptk.many rp = sigprocmask // sigjmp_buf[JB_MASK] = sigmask
51	;;
52
53	add r16 = JB_MASK_SAVED*8, in0
54	st8 [in0] = sp, (JB_RP-JB_SP)*8	// sigjmp_buf[JB_SP] = sp
55	mov r8 = 0
56	;;
57	st8 [in0] = loc0, (JB_BSP-JB_RP)*8	// sigjmp_buf[JB_RP] = rp
58	st8 [r16] = in1			// sigjmp_buf[JB_MASK_SAVED] = savemask
59	mov rp = loc0
60	;;
61	st8 [in0] = loc2		// sigjmp_buf[JB_BSP] = bsp
62	mov.i ar.pfs = loc1
63	br.ret.sptk.many rp
64
65	.endp __sigsetjmp
66#ifdef __linux__
67	/* We do not need executable stack.  */
68	.section	.note.GNU-stack,"",@progbits
69#endif
70