xref: /dragonfly/sys/sys/imgact_elf.h (revision af79c6e5)
1 /*-
2  * Copyright (c) 1995-1996 S�ren Schmidt
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  *    in this position and unchanged.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  * 3. The name of the author may not be used to endorse or promote products
15  *    derived from this software withough specific prior written permission
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27  *
28  * $FreeBSD: src/sys/sys/imgact_elf.h,v 1.17.2.1 2000/07/06 22:26:40 obrien Exp $
29  * $DragonFly: src/sys/sys/imgact_elf.h,v 1.4 2003/10/19 19:24:20 dillon Exp $
30  */
31 
32 #ifndef _SYS_IMGACT_ELF_H_
33 #define _SYS_IMGACT_ELF_H_
34 
35 #include <machine/elf.h>
36 
37 #ifdef _KERNEL
38 
39 #define AUXARGS_ENTRY(pos, id, val) {suword(pos++, id); suword(pos++, val);}
40 
41 #if ELF_TARG_CLASS == ELFCLASS32
42 
43 /*
44  * Structure used to pass infomation from the loader to the
45  * stack fixup routine.
46  */
47 typedef struct {
48 	Elf32_Sword	execfd;
49 	Elf32_Word	phdr;
50 	Elf32_Word	phent;
51 	Elf32_Word	phnum;
52 	Elf32_Word	pagesz;
53 	Elf32_Word	base;
54 	Elf32_Word	flags;
55 	Elf32_Word	entry;
56 	Elf32_Word	trace;
57 } Elf32_Auxargs;
58 
59 typedef struct {
60 	int brand;
61 	const char *compat_3_brand;	/* pre Binutils 2.10 method (FBSD 3) */
62 	const char *emul_path;
63 	const char *interp_path;
64         struct sysentvec *sysvec;
65 } Elf32_Brandinfo;
66 
67 #define MAX_BRANDS      8
68 
69 int	elf_brand_inuse        (Elf32_Brandinfo *entry);
70 int	elf_insert_brand_entry (Elf32_Brandinfo *entry);
71 int	elf_remove_brand_entry (Elf32_Brandinfo *entry);
72 
73 #else /* !(ELF_TARG_CLASS == ELFCLASS32) */
74 
75 /*
76  * Structure used to pass infomation from the loader to the
77  * stack fixup routine.
78  */
79 typedef struct {
80 	Elf64_Sword	execfd;
81 	Elf64_Addr	phdr;
82 	Elf64_Word	phent;
83 	Elf64_Word	phnum;
84 	Elf64_Word	pagesz;
85 	Elf64_Addr	base;
86 	Elf64_Word	flags;
87 	Elf64_Addr	entry;
88 	Elf64_Word	trace;
89 } Elf64_Auxargs;
90 
91 typedef struct {
92 	int brand;
93 	const char *compat_3_brand;	/* pre Binutils 2.10 method (FBSD 3) */
94 	const char *emul_path;
95 	const char *interp_path;
96         struct sysentvec *sysvec;
97 } Elf64_Brandinfo;
98 
99 #define MAX_BRANDS      8
100 
101 int	elf_brand_inuse        (Elf64_Brandinfo *entry);
102 int	elf_insert_brand_entry (Elf64_Brandinfo *entry);
103 int	elf_remove_brand_entry (Elf64_Brandinfo *entry);
104 
105 #endif /* ELF_TARG_CLASS == ELFCLASS32 */
106 
107 struct proc;
108 struct file;
109 int	elf_coredump (struct proc *, struct vnode *, off_t);
110 int     generic_elf_coredump(struct proc *p, struct file *fp, off_t limit);
111 #endif /* _KERNEL */
112 
113 #endif /* !_SYS_IMGACT_ELF_H_ */
114