1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
|
/* longjmp for PA-RISC.
Copyright (C) 1997-2018 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#include <setjmp.h>
#include <stdlib.h>
/* Jump to the position specified by ENV, causing the
setjmp call there to return VAL, or 1 if VAL is 0. */
void
__longjmp (__jmp_buf env, int val)
{
#ifdef CHECK_SP
CHECK_SP (env[0].__jmp_buf.__sp);
#endif
/* We must use one of the non-callee saves registers
for env. */
register unsigned long r26 asm ("r26") = (unsigned long)&env[0];
register unsigned long r25 asm ("r25") = (unsigned long)(val == 0 ? 1 : val);
asm volatile(
/* Set return value. */
"copy %0, %%r28\n\t"
/* Load callee saves from r3 to r18. */
"ldw 0(%1), %%r3\n\t"
"ldw 8(%1), %%r4\n\t"
"ldw 12(%1), %%r5\n\t"
"ldw 16(%1), %%r6\n\t"
"ldw 20(%1), %%r7\n\t"
"ldw 24(%1), %%r8\n\t"
"ldw 28(%1), %%r9\n\t"
"ldw 32(%1), %%r10\n\t"
"ldw 36(%1), %%r11\n\t"
"ldw 40(%1), %%r12\n\t"
"ldw 44(%1), %%r13\n\t"
"ldw 48(%1), %%r14\n\t"
"ldw 52(%1), %%r15\n\t"
"ldw 56(%1), %%r16\n\t"
"ldw 60(%1), %%r17\n\t"
"ldw 64(%1), %%r18\n\t"
/* Load PIC register. */
"ldw 68(%1), %%r19\n\t"
/* Load static link register. */
"ldw 72(%1), %%r27\n\t"
/* Load stack pointer. */
"ldw 76(%1), %%r30\n\t"
/* Load return pointer. */
"ldw 80(%1), %%rp\n\t"
/* Ues a spare caller saves register. */
"ldo 88(%1),%%r25\n\t"
/* Load callee saves from fr12 to fr21. */
"fldds,ma 8(%%r25), %%fr12\n\t"
"fldds,ma 8(%%r25), %%fr13\n\t"
"fldds,ma 8(%%r25), %%fr14\n\t"
"fldds,ma 8(%%r25), %%fr15\n\t"
"fldds,ma 8(%%r25), %%fr16\n\t"
"fldds,ma 8(%%r25), %%fr17\n\t"
"fldds,ma 8(%%r25), %%fr18\n\t"
"fldds,ma 8(%%r25), %%fr19\n\t"
"fldds,ma 8(%%r25), %%fr20\n\t"
"fldds 0(%%r25), %%fr21\n\t"
/* Jump back to stored return address. */
"bv,n %%r0(%%r2)\n\t"
: /* No outputs. */
: "r" (r25), "r" (r26)
: /* No point in clobbers. */ );
/* Avoid `volatile function does return' warnings. */
for (;;);
}
|
