xref: /dragonfly/sys/sys/imgact_elf.h (revision 59b0b316)
1 /*-
2  * Copyright (c) 1995-1996 Søren 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 without 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  */
30 
31 #ifndef _SYS_IMGACT_ELF_H_
32 #define	_SYS_IMGACT_ELF_H_
33 
34 #include <sys/elf_common.h>
35 #include <machine/elf.h>
36 
37 #ifdef _KERNEL
38 
39 #define	AUXARGS_ENTRY(pos, id, val) {suword64(pos++, id); suword64(pos++, val);}
40 
41 struct lwp;
42 struct file;
43 struct vnode;
44 
45 /*
46  * Structure used to pass infomation from the loader to the
47  * stack fixup routine.
48  */
49 typedef struct {
50 	Elf_Sword	execfd;
51 	Elf_Size	phdr;
52 	Elf_Size	phent;
53 	Elf_Size	phnum;
54 	Elf_Size	pagesz;
55 	Elf_Size	base;
56 	Elf_Size	flags;
57 	Elf_Size	entry;
58 } __ElfN(Auxargs);
59 
60 typedef struct {
61 	Elf_Note	hdr;
62 	const char *	vendor;
63 	int		flags;
64 	boolean_t	(*trans_osrel)(const Elf_Note *, int32_t *);
65 } Elf_Brandnote;
66 
67 typedef struct {
68 	int brand;
69 	int machine;
70 	const char *compat_3_brand;	/* pre Binutils 2.10 method (FBSD 3) */
71 	const char *emul_path;
72 	const char *interp_path;
73 	struct sysentvec *sysvec;
74 	const char *interp_newpath;
75 	int flags;
76 	Elf_Brandnote *brand_note;
77 } __ElfN(Brandinfo);
78 
79 __ElfType(Auxargs);
80 __ElfType(Brandinfo);
81 
82 #define	MAX_BRANDS		8
83 #define	BI_CAN_EXEC_DYN		0x0001
84 #define	BI_BRAND_NOTE		0x0002  /* May have note.ABI-tag section. */
85 #define	BI_BRAND_NOTE_MANDATORY	0x0004  /* Must have note.ABI-tag section. */
86 #define	BN_CAN_FETCH_OSREL	0x0001  /* No longer used */
87 #define	BN_TRANSLATE_OSREL	0x0002  /* New osreldate function pointer */
88 
89 int	__elfN(brand_inuse)        (Elf_Brandinfo *entry);
90 int	__elfN(insert_brand_entry) (Elf_Brandinfo *entry);
91 int	__elfN(remove_brand_entry) (Elf_Brandinfo *entry);
92 int	__elfN(dragonfly_fixup)    (register_t **, struct image_params *);
93 int	__elfN(coredump)           (struct lwp *, int, struct vnode *, off_t);
94 
95 int     generic_elf_coredump       (struct lwp *lp, int sig, struct file *fp,
96 				    off_t limit);
97 extern Elf_Brandnote 	__elfN(dragonfly_brandnote);
98 extern Elf_Brandnote	__elfN(freebsd_brandnote);
99 
100 #endif /* _KERNEL */
101 
102 #endif /* !_SYS_IMGACT_ELF_H_ */
103