]>
Commit | Line | Data |
---|---|---|
688903eb | 1 | /* Copyright (C) 1991-2018 Free Software Foundation, Inc. |
36e28152 | 2 | This file is part of the GNU C Library. |
a6353123 | 3 | |
36e28152 | 4 | The GNU C Library is free software; you can redistribute it and/or |
3214b89b AJ |
5 | modify it under the terms of the GNU Lesser General Public |
6 | License as published by the Free Software Foundation; either | |
7 | version 2.1 of the License, or (at your option) any later version. | |
a6353123 | 8 | |
36e28152 UD |
9 | The GNU C Library is distributed in the hope that it will be useful, |
10 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
3214b89b | 12 | Lesser General Public License for more details. |
a6353123 | 13 | |
3214b89b | 14 | You should have received a copy of the GNU Lesser General Public |
ab84e3ff PE |
15 | License along with the GNU C Library. If not, see |
16 | <http://www.gnu.org/licenses/>. */ | |
a6353123 | 17 | |
a6353123 RM |
18 | #include <setjmp.h> |
19 | #include <stdlib.h> | |
20 | ||
21 | /* Jump to the position specified by ENV, causing the | |
22 | setjmp call there to return VAL, or 1 if VAL is 0. */ | |
a6353123 | 23 | void |
6b319336 | 24 | __longjmp (__jmp_buf env, int val) |
a6353123 RM |
25 | { |
26 | /* This restores the FP and SP that setjmp's caller had, | |
27 | and puts the return address into A0 and VAL into D0. */ | |
28 | ||
f0e69449 AS |
29 | #ifdef CHECK_SP |
30 | CHECK_SP (env[0].__sp); | |
31 | #endif | |
32 | ||
a6353123 RM |
33 | #if defined(__HAVE_68881__) || defined(__HAVE_FPU__) |
34 | /* Restore the floating-point registers. */ | |
69c85398 RM |
35 | asm volatile("fmovem%.x %0, %/fp0-%/fp7" : |
36 | /* No outputs. */ : "g" (env[0].__fpregs[0])); | |
9c986f87 AS |
37 | #elif defined (__mcffpu__) |
38 | asm volatile("fmovem %0, %/fp0-%/fp7" : | |
39 | /* No outputs. */ : "m" (env[0].__fpregs[0])); | |
a6353123 RM |
40 | #endif |
41 | ||
42 | /* Put VAL in D0. */ | |
69c85398 | 43 | asm volatile("move%.l %0, %/d0" : /* No outputs. */ : |
a6353123 RM |
44 | "g" (val == 0 ? 1 : val) : "d0"); |
45 | ||
46 | asm volatile(/* Restore the data and address registers. */ | |
69c85398 | 47 | "movem%.l %0, %/d1-%/d7/%/a0-%/a7\n" |
a6353123 | 48 | /* Return to setjmp's caller. */ |
e982f638 | 49 | #ifdef __motorola__ |
69c85398 | 50 | "jmp (%/a0)" |
e982f638 | 51 | #else |
69c85398 | 52 | "jmp %/a0@" |
e982f638 RM |
53 | #endif |
54 | : /* No outputs. */ : "g" (env[0].__dregs[0]) | |
a6353123 RM |
55 | /* We don't bother with the clobbers, |
56 | because this code always jumps out anyway. */ | |
57 | ); | |
58 | ||
e1da1289 UD |
59 | /* Avoid `volatile function does return' warnings. */ |
60 | for (;;); | |
a6353123 | 61 | } |