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