1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
22 /* All Rights Reserved */
23
24
25 /*
26 * Copyright 2008 Sun Microsystems, Inc. All rights reserved.
27 * Use is subject to license terms.
28 */
29 /*
30 * Copyright (c) 2012, Joyent, Inc. All rights reserved.
31 */
32
33 #ifndef _SYS_AUXV_H
34 #define _SYS_AUXV_H
35
36 #include <sys/types.h>
37
38 #ifdef __cplusplus
39 extern "C" {
40 #endif
41
42 #if !defined(_ASM)
43 typedef struct
44 {
45 int a_type;
46 union {
47 long a_val;
48 #ifdef __STDC__
49 void *a_ptr;
50 #else
51 char *a_ptr;
52 #endif
53 void (*a_fcn)();
54 } a_un;
55 } auxv_t;
56
57 #if defined(_SYSCALL32)
58
59 typedef struct {
60 int32_t a_type;
61 union {
62 int32_t a_val;
63 caddr32_t a_ptr;
64 caddr32_t a_fcn;
65 } a_un;
66 } auxv32_t;
67
68 #endif /* _SYSCALL32 */
69
70 #endif /* _ASM */
71
72 #define AT_NULL 0
73 #define AT_IGNORE 1
74 #define AT_EXECFD 2
75 #define AT_PHDR 3 /* &phdr[0] */
76 #define AT_PHENT 4 /* sizeof(phdr[0]) */
77 #define AT_PHNUM 5 /* # phdr entries */
78 #define AT_PAGESZ 6 /* getpagesize(2) */
79 #define AT_BASE 7 /* ld.so base addr */
80 #define AT_FLAGS 8 /* processor flags */
81 #define AT_ENTRY 9 /* a.out entry point */
82
83 /*
84 * These relate to the original PPC ABI document; Linux reused
85 * the values for other things (see below), so disambiguation of
86 * these values may require additional context in PPC binaries.
87 *
88 * AT_DCACHEBSIZE 10 smallest data cache block size
89 * AT_ICACHEBSIZE 11 smallest instruction cache block size
90 * AT_UCACHEBSIZE 12 smallest unified cache block size
91 *
92 * These are the values from LSB 1.3, the first five are also described
93 * in the draft amd64 ABI.
94 *
95 * At the time of writing, Solaris doesn't place any of these values into
96 * the aux vector, except AT_CLKTCK which is placed on the aux vector for
97 * lx branded processes; also, we do similar things via AT_SUN_ values.
98 *
99 * AT_NOTELF 10 program is not ELF?
100 * AT_UID 11 real user id
101 * AT_EUID 12 effective user id
102 * AT_GID 13 real group id
103 * AT_EGID 14 effective group id
104 *
105 * AT_PLATFORM 15
106 * AT_HWCAP 16
107 * AT_CLKTCK 17 c.f. _SC_CLK_TCK
108 * AT_FPUCW 18
109 *
110 * AT_DCACHEBSIZE 19 (moved from 10)
111 * AT_ICACHEBSIZE 20 (moved from 11)
112 * AT_UCACHEBSIZE 21 (moved from 12)
113 *
114 * AT_IGNOREPPC 22
115 */
116
117 /*
118 * Sun extensions begin here
119 */
120 #define AT_SUN_UID 2000 /* effective user id */
121 #define AT_SUN_RUID 2001 /* real user id */
122 #define AT_SUN_GID 2002 /* effective group id */
123 #define AT_SUN_RGID 2003 /* real group id */
124
125 /*
126 * The following attributes are specific to the
127 * kernel implementation of the linker/loader.
128 */
129 #define AT_SUN_LDELF 2004 /* dynamic linker's ELF header */
130 #define AT_SUN_LDSHDR 2005 /* dynamic linker's section headers */
131 #define AT_SUN_LDNAME 2006 /* name of dynamic linker */
132 #define AT_SUN_LPAGESZ 2007 /* large pagesize */
133 /*
134 * The following aux vector provides a null-terminated platform
135 * identification string. This information is the same as provided
136 * by sysinfo(2) when invoked with the command SI_PLATFORM.
137 */
138 #define AT_SUN_PLATFORM 2008 /* platform name */
139
140 /*
141 * These attributes communicate performance -hints- about processor
142 * hardware capabilities that might be useful to library implementations.
143 */
144 #define AT_SUN_HWCAP 2009
145 #define AT_SUN_HWCAP2 2023
146
147 #if defined(_KERNEL)
148 /*
149 * User info regarding machine attributes, respectively reported to native and
150 * non-native user apps.
151 */
152 extern uint_t auxv_hwcap;
153 extern uint_t auxv_hwcap_2;
154 #if defined(_SYSCALL32)
155 extern uint_t auxv_hwcap32;
156 extern uint_t auxv_hwcap32_2;
157 #endif /* _SYSCALL32 */
158 #else
159 extern uint_t getisax(uint32_t *, uint_t);
160 #endif /* _KERNEL */
161
162 #define AT_SUN_IFLUSH 2010 /* flush icache? */
163 #define AT_SUN_CPU 2011 /* cpu name */
164
165 /*
166 * The following aux vector provides a pointer to a null-terminated
167 * path name, a copy of the path name passed to the exec() system
168 * call but that has had all symlinks resolved (see resolvepath(2)).
169 */
170 #define AT_SUN_EXECNAME 2014 /* exec() path name */
171
172 #define AT_SUN_MMU 2015 /* mmu module name */
173 #define AT_SUN_LDDATA 2016 /* dynamic linkers data segment */
174
175 #define AT_SUN_AUXFLAGS 2017 /* AF_SUN_ flags passed from the kernel */
176
177 /*
178 * Used to indicate to the runtime linker the name of the emulation binary,
179 * if one is being used. For brands, this is the name of the brand library.
180 */
181 #define AT_SUN_EMULATOR 2018
182
183 #define AT_SUN_BRANDNAME 2019
184
185 /*
186 * Aux vectors available for brand modules.
187 */
188 #define AT_SUN_BRAND_AUX1 2020
189 #define AT_SUN_BRAND_AUX2 2021
190 #define AT_SUN_BRAND_AUX3 2022
191
192 /*
193 * Note that 2023 is reserved for the AT_SUN_HWCAP2 word defined above.
194 */
195
196 /*
197 * The kernel is in a better position to determine whether a process needs to
198 * ignore dangerous LD environment variables. If set, this flags tells
199 * ld.so.1 to run "secure" and ignore the the environment.
200 */
201 #define AF_SUN_SETUGID 0x00000001
202
203 /*
204 * If set, this flag indicates that hardware capabilites can be verified
205 * against the AT_SUN_HWCAP value.
206 */
207 #define AF_SUN_HWCAPVERIFY 0x00000002
208
209 /*
210 * If set, this flag indicates that the the linker should not initialize
211 * any of its link maps as primary link wrt the unified libc threading
212 * interfaces.
213 */
214 #define AF_SUN_NOPLM 0x00000004
215
216 #ifdef __cplusplus
217 }
218 #endif
219
220 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_SPARC) || defined(__sparc)
221 #include <sys/auxv_SPARC.h>
222 #endif
223
224 #if defined(_AUXV_TARGET_ALL) || defined(_AUXV_TARGET_386) || defined(__x86)
225 #include <sys/auxv_386.h>
226 #endif
227
228 #endif /* _SYS_AUXV_H */