1/*
2 * Copyright (c) 2001 Daniel Eischen <deischen@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Neither the name of the author nor the names of its contributors
11 * may be used to endorse or promote products derived from this software
12 * without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
| 1/*
2 * Copyright (c) 2001 Daniel Eischen <deischen@freebsd.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Neither the name of the author nor the names of its contributors
11 * may be used to endorse or promote products derived from this software
12 * without specific prior written permission.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 */
26
27#include <machine/asm.h>
|
29
30/*
31 * _ctx_start((void *func)(int arg1, ..., argn),
32 * int arg1, ..., argn, ucontext_t *ucp)
33 *
34 * 0(%esp) - func
35 * 4(%esp) - arg1
36 * 8(%esp) - arg2
37 * ...
38 * (4*n)(%esp) - argn
39 * (4*(n + 1))(%esp) - ucp, %ebp setup to point here (base of stack)
40 */
41ENTRY(_ctx_start)
42 popl %eax /* get start function */
43 call *%eax /* call start function */
44 PIC_PROLOGUE
45 movl %esi, %esp /*
46 * setup stack for completion routine;
47 * ucp is now at top of stack
48 */
49 call PIC_PLT(_ctx_done) /* should never return */
50 call PIC_PLT(abort) /* fubar */
51 ret
52END(_ctx_start)
| 29
30/*
31 * _ctx_start((void *func)(int arg1, ..., argn),
32 * int arg1, ..., argn, ucontext_t *ucp)
33 *
34 * 0(%esp) - func
35 * 4(%esp) - arg1
36 * 8(%esp) - arg2
37 * ...
38 * (4*n)(%esp) - argn
39 * (4*(n + 1))(%esp) - ucp, %ebp setup to point here (base of stack)
40 */
41ENTRY(_ctx_start)
42 popl %eax /* get start function */
43 call *%eax /* call start function */
44 PIC_PROLOGUE
45 movl %esi, %esp /*
46 * setup stack for completion routine;
47 * ucp is now at top of stack
48 */
49 call PIC_PLT(_ctx_done) /* should never return */
50 call PIC_PLT(abort) /* fubar */
51 ret
52END(_ctx_start)
|