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
|
/* BSD `_setjmp' entry point to `sigsetjmp (..., 0)'. m68k version.
Copyright (C) 1994 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 Library General Public License as
published by the Free Software Foundation; either version 2 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If
not, write to the Free Software Foundation, Inc., 675 Mass Ave,
Cambridge, MA 02139, USA. */
/* This just does a tail-call to `__sigsetjmp (ARG, 0)'.
We cannot do it in C because it must be a tail-call, so frame-unwinding
in setjmp doesn't clobber the state restored by longjmp. */
#include <sysdep.h>
#ifdef MOTOROLA_SYNTAX
#define d0 %d0
#define d1 %d1
#define PUSH(reg) move.l reg, -(%sp)
#define POP(reg) move.l (%sp)+, reg
#define PUSH0 clr.l -(%sp)
#else
#define PUSH(reg) movel reg, sp@-
#define POP(reg) movel sp@+, reg
#define PUSH0 clrl sp@-
#endif
ENTRY (_setjmp)
POP (d0) /* Pop return PC. */
POP (d1) /* Pop jmp_buf argument. */
PUSH0 /* Push second argument of zero. */
PUSH (d1) /* Push back first argument. */
PUSH (d0) /* Push back return PC. */
#ifdef PIC
bra.l C_SYMBOL_NAME (__sigsetjmp@PLTPC)
#else
jmp C_SYMBOL_NAME (__sigsetjmp)
#endif
|
