1/* $NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $ */
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
--- 18 unchanged lines hidden (view full) ---
28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/gen/_setjmp.S 178580 2008-04-26 12:08:02Z imp $");
37#include <machine/regnum.h>
38
39#if defined(LIBC_SCCS) && !defined(lint)
40 ASMSTR("from: @(#)_setjmp.s 8.1 (Berkeley) 6/4/93")
41 ASMSTR("$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $")
42#endif /* LIBC_SCCS and not lint */
43
44#ifdef __ABICALLS__
45 .abicalls
46#endif
47
48/*
49 * C library -- _setjmp, _longjmp
50 *
51 * _longjmp(a,v)
52 * will generate a "return(v)" from
53 * the last call to
54 * _setjmp(a)
55 * by restoring registers from the stack,
56 * The previous signal state is NOT restored.
57 */
58
59
60LEAF(_setjmp)
61#ifdef __ABICALLS__
62 .set noreorder
63 .cpload t9
64 subu sp, sp, CALLFRAME_SIZ # allocate stack frame
65 .cprestore 16
66#endif
67 li v0, _JB_MAGIC__SETJMP
68 sw v0, (_JB_MAGIC * SZREG)(a0)
69 sw ra, (_JB_REG_RA * SZREG)(a0)
70 sw s0, (_JB_REG_S0 * SZREG)(a0)
71 sw s1, (_JB_REG_S1 * SZREG)(a0)
72 sw s2, (_JB_REG_S2 * SZREG)(a0)
73 sw s3, (_JB_REG_S3 * SZREG)(a0)
74 sw s4, (_JB_REG_S4 * SZREG)(a0)
75 sw s5, (_JB_REG_S5 * SZREG)(a0)
76 sw s6, (_JB_REG_S6 * SZREG)(a0)
77 sw s7, (_JB_REG_S7 * SZREG)(a0)
78 sw s8, (_JB_REG_S8 * SZREG)(a0)
79#ifdef __ABICALLS__
80 addu sp, sp, CALLFRAME_SIZ # un-allocate the stack frame
81#endif
82 sw sp, (_JB_REG_SP * SZREG)(a0)
83 j ra
84 move v0, zero
85END(_setjmp)
86
87LEAF(_longjmp)
88#ifdef __ABICALLS__
89 .set noreorder
90 .cpload t9
91 subu sp, sp, CALLFRAME_SIZ # allocate stack frame
92 .cprestore 16
93#endif
94 lw v0, (_JB_MAGIC * SZREG)(a0)
95 lw ra, (_JB_REG_RA * SZREG)(a0)
96 li t0, _JB_MAGIC__SETJMP
97 bne v0, t0, botch # jump if error
98 lw s0, (_JB_REG_S0 * SZREG)(a0)
99 lw s1, (_JB_REG_S1 * SZREG)(a0)
100 lw s2, (_JB_REG_S2 * SZREG)(a0)
101 lw s3, (_JB_REG_S3 * SZREG)(a0)
102 lw s4, (_JB_REG_S4 * SZREG)(a0)
103 lw s5, (_JB_REG_S5 * SZREG)(a0)
104 lw s6, (_JB_REG_S6 * SZREG)(a0)
105 lw s7, (_JB_REG_S7 * SZREG)(a0)
106 lw sp, (_JB_REG_SP * SZREG)(a0)
107 lw s8, (_JB_REG_S8 * SZREG)(a0)
108
109 j ra
110 move v0, a1
111
112botch:
113 jal _C_LABEL(longjmperror)
114 nop
115 jal _C_LABEL(abort)
116 nop
117END(_longjmp)
2
3/*-
4 * Copyright (c) 1991, 1993
5 * The Regents of the University of California. All rights reserved.
6 *
7 * This code is derived from software contributed to Berkeley by
8 * Ralph Campbell.
9 *
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28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32 * SUCH DAMAGE.
33 */
34
35#include <machine/asm.h>
36__FBSDID("$FreeBSD: head/lib/libc/mips/gen/_setjmp.S 178580 2008-04-26 12:08:02Z imp $");
37#include <machine/regnum.h>
38
39#if defined(LIBC_SCCS) && !defined(lint)
40 ASMSTR("from: @(#)_setjmp.s 8.1 (Berkeley) 6/4/93")
41 ASMSTR("$NetBSD: _setjmp.S,v 1.20 2005/10/07 17:16:40 tsutsui Exp $")
42#endif /* LIBC_SCCS and not lint */
43
44#ifdef __ABICALLS__
45 .abicalls
46#endif
47
48/*
49 * C library -- _setjmp, _longjmp
50 *
51 * _longjmp(a,v)
52 * will generate a "return(v)" from
53 * the last call to
54 * _setjmp(a)
55 * by restoring registers from the stack,
56 * The previous signal state is NOT restored.
57 */
58
59
60LEAF(_setjmp)
61#ifdef __ABICALLS__
62 .set noreorder
63 .cpload t9
64 subu sp, sp, CALLFRAME_SIZ # allocate stack frame
65 .cprestore 16
66#endif
67 li v0, _JB_MAGIC__SETJMP
68 sw v0, (_JB_MAGIC * SZREG)(a0)
69 sw ra, (_JB_REG_RA * SZREG)(a0)
70 sw s0, (_JB_REG_S0 * SZREG)(a0)
71 sw s1, (_JB_REG_S1 * SZREG)(a0)
72 sw s2, (_JB_REG_S2 * SZREG)(a0)
73 sw s3, (_JB_REG_S3 * SZREG)(a0)
74 sw s4, (_JB_REG_S4 * SZREG)(a0)
75 sw s5, (_JB_REG_S5 * SZREG)(a0)
76 sw s6, (_JB_REG_S6 * SZREG)(a0)
77 sw s7, (_JB_REG_S7 * SZREG)(a0)
78 sw s8, (_JB_REG_S8 * SZREG)(a0)
79#ifdef __ABICALLS__
80 addu sp, sp, CALLFRAME_SIZ # un-allocate the stack frame
81#endif
82 sw sp, (_JB_REG_SP * SZREG)(a0)
83 j ra
84 move v0, zero
85END(_setjmp)
86
87LEAF(_longjmp)
88#ifdef __ABICALLS__
89 .set noreorder
90 .cpload t9
91 subu sp, sp, CALLFRAME_SIZ # allocate stack frame
92 .cprestore 16
93#endif
94 lw v0, (_JB_MAGIC * SZREG)(a0)
95 lw ra, (_JB_REG_RA * SZREG)(a0)
96 li t0, _JB_MAGIC__SETJMP
97 bne v0, t0, botch # jump if error
98 lw s0, (_JB_REG_S0 * SZREG)(a0)
99 lw s1, (_JB_REG_S1 * SZREG)(a0)
100 lw s2, (_JB_REG_S2 * SZREG)(a0)
101 lw s3, (_JB_REG_S3 * SZREG)(a0)
102 lw s4, (_JB_REG_S4 * SZREG)(a0)
103 lw s5, (_JB_REG_S5 * SZREG)(a0)
104 lw s6, (_JB_REG_S6 * SZREG)(a0)
105 lw s7, (_JB_REG_S7 * SZREG)(a0)
106 lw sp, (_JB_REG_SP * SZREG)(a0)
107 lw s8, (_JB_REG_S8 * SZREG)(a0)
108
109 j ra
110 move v0, a1
111
112botch:
113 jal _C_LABEL(longjmperror)
114 nop
115 jal _C_LABEL(abort)
116 nop
117END(_longjmp)