Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]
FreeBSD/Linux Kernel Cross Reference
sys/sys/sdt.h
Version:
- FREEBSD - FREEBSD-13-STABLE - FREEBSD-13-0 - FREEBSD-12-STABLE - FREEBSD-12-0 - FREEBSD-11-STABLE - FREEBSD-11-0 - FREEBSD-10-STABLE - FREEBSD-10-0 - FREEBSD-9-STABLE - FREEBSD-9-0 - FREEBSD-8-STABLE - FREEBSD-8-0 - FREEBSD-7-STABLE - FREEBSD-7-0 - FREEBSD-6-STABLE - FREEBSD-6-0 - FREEBSD-5-STABLE - FREEBSD-5-0 - FREEBSD-4-STABLE - FREEBSD-3-STABLE - FREEBSD22 - l41 - OPENBSD - linux-2.6 - MK84 - PLAN9 - xnu-8792
SearchContext: - none - 3 - 10
SearchContext: - none - 3 - 10
1 /*- 2 * Copyright 2006-2008 John Birrell <jb@FreeBSD.org> 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND 14 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16 * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23 * SUCH DAMAGE. 24 * 25 * $FreeBSD: releng/8.3/sys/sys/sdt.h 219107 2011-02-28 23:28:35Z rwatson $ 26 * 27 * Statically Defined Tracing (SDT) definitions. 28 * 29 */ 30 31 #ifndef _SYS_SDT_H 32 #define _SYS_SDT_H 33 34 #ifndef _KERNEL 35 36 #define _DTRACE_VERSION 1 37 38 #define DTRACE_PROBE(prov, name) { \ 39 extern void __dtrace_##prov##___##name(void); \ 40 __dtrace_##prov##___##name(); \ 41 } 42 43 #define DTRACE_PROBE1(prov, name, arg1) { \ 44 extern void __dtrace_##prov##___##name(unsigned long); \ 45 __dtrace_##prov##___##name((unsigned long)arg1); \ 46 } 47 48 #define DTRACE_PROBE2(prov, name, arg1, arg2) { \ 49 extern void __dtrace_##prov##___##name(unsigned long, \ 50 unsigned long); \ 51 __dtrace_##prov##___##name((unsigned long)arg1, \ 52 (unsigned long)arg2); \ 53 } 54 55 #define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \ 56 extern void __dtrace_##prov##___##name(unsigned long, \ 57 unsigned long, unsigned long); \ 58 __dtrace_##prov##___##name((unsigned long)arg1, \ 59 (unsigned long)arg2, (unsigned long)arg3); \ 60 } 61 62 #define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \ 63 extern void __dtrace_##prov##___##name(unsigned long, \ 64 unsigned long, unsigned long, unsigned long); \ 65 __dtrace_##prov##___##name((unsigned long)arg1, \ 66 (unsigned long)arg2, (unsigned long)arg3, \ 67 (unsigned long)arg4); \ 68 } 69 70 #define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \ 71 extern void __dtrace_##prov##___##name(unsigned long, \ 72 unsigned long, unsigned long, unsigned long, unsigned long);\ 73 __dtrace_##prov##___##name((unsigned long)arg1, \ 74 (unsigned long)arg2, (unsigned long)arg3, \ 75 (unsigned long)arg4, (unsigned long)arg5); \ 76 } 77 78 #else /* _KERNEL */ 79 80 #ifndef KDTRACE_HOOKS 81 82 #define SDT_PROVIDER_DEFINE(prov) 83 #define SDT_PROVIDER_DECLARE(prov) 84 #define SDT_PROBE_DEFINE(prov, mod, func, name, sname) 85 #define SDT_PROBE_DECLARE(prov, mod, func, name) 86 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 87 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type) 88 89 #define SDT_PROBE_DEFINE1(prov, mod, func, name, sname, arg0) 90 #define SDT_PROBE_DEFINE2(prov, mod, func, name, sname, arg0, arg1) 91 #define SDT_PROBE_DEFINE3(prov, mod, func, name, sname, arg0, arg1, arg2) 92 #define SDT_PROBE_DEFINE4(prov, mod, func, name, sname, arg0, arg1, arg2, arg3) 93 #define SDT_PROBE_DEFINE5(prov, mod, func, name, sname, arg0, arg1, arg2, arg3, arg4) 94 95 #define SDT_PROBE1(prov, mod, func, name, arg0) 96 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) 97 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) 98 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) 99 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 100 101 #else 102 103 /* 104 * This type definition must match that of dtrace_probe. It is defined this 105 * way to avoid having to rely on CDDL code. 106 */ 107 typedef void (*sdt_probe_func_t)(u_int32_t, uintptr_t arg0, uintptr_t arg1, 108 uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); 109 110 /* 111 * The hook for the probe function. See kern_sdt.c which defaults this to 112 * it's own stub. The 'sdt' provider will set it to dtrace_probe when it 113 * loads. 114 */ 115 extern sdt_probe_func_t sdt_probe_func; 116 117 typedef enum { 118 SDT_UNINIT = 1, 119 SDT_INIT, 120 } sdt_state_t; 121 122 struct sdt_probe; 123 struct sdt_provider; 124 125 struct sdt_argtype { 126 int ndx; /* Argument index. */ 127 const char *type; /* Argument type string. */ 128 TAILQ_ENTRY(sdt_argtype) 129 argtype_entry; /* Argument type list entry. */ 130 struct sdt_probe 131 *probe; /* Ptr to the probe structure. */ 132 }; 133 134 struct sdt_probe { 135 int version; /* Set to sizeof(struct sdt_ref). */ 136 sdt_state_t state; 137 struct sdt_provider 138 *prov; /* Ptr to the provider structure. */ 139 TAILQ_ENTRY(sdt_probe) 140 probe_entry; /* SDT probe list entry. */ 141 TAILQ_HEAD(argtype_list_head, sdt_argtype) argtype_list; 142 const char *mod; 143 const char *func; 144 const char *name; 145 id_t id; /* DTrace probe ID. */ 146 int n_args; /* Number of arguments. */ 147 }; 148 149 struct sdt_provider { 150 const char *name; /* Provider name. */ 151 TAILQ_ENTRY(sdt_provider) 152 prov_entry; /* SDT provider list entry. */ 153 TAILQ_HEAD(probe_list_head, sdt_probe) probe_list; 154 uintptr_t id; /* DTrace provider ID. */ 155 }; 156 157 #define SDT_PROVIDER_DEFINE(prov) \ 158 struct sdt_provider sdt_provider_##prov[1] = { \ 159 { #prov, { NULL, NULL }, { NULL, NULL } } \ 160 }; \ 161 SYSINIT(sdt_provider_##prov##_init, SI_SUB_KDTRACE, \ 162 SI_ORDER_SECOND, sdt_provider_register, \ 163 sdt_provider_##prov ); \ 164 SYSUNINIT(sdt_provider_##prov##_uninit, SI_SUB_KDTRACE, \ 165 SI_ORDER_SECOND, sdt_provider_deregister, \ 166 sdt_provider_##prov ) 167 168 #define SDT_PROVIDER_DECLARE(prov) \ 169 extern struct sdt_provider sdt_provider_##prov[1] 170 171 #define SDT_PROBE_DEFINE(prov, mod, func, name, sname) \ 172 struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ 173 { sizeof(struct sdt_probe), 0, sdt_provider_##prov, \ 174 { NULL, NULL }, { NULL, NULL }, #mod, #func, #sname, 0, 0 } \ 175 }; \ 176 SYSINIT(sdt_##prov##_##mod##_##func##_##name##_init, SI_SUB_KDTRACE, \ 177 SI_ORDER_SECOND + 1, sdt_probe_register, \ 178 sdt_##prov##_##mod##_##func##_##name ); \ 179 SYSUNINIT(sdt_##prov##_##mod##_##func##_##name##_uninit, \ 180 SI_SUB_KDTRACE, SI_ORDER_SECOND + 1, sdt_probe_deregister, \ 181 sdt_##prov##_##mod##_##func##_##name ) 182 183 #define SDT_PROBE_DECLARE(prov, mod, func, name) \ 184 extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] 185 186 #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 187 if (sdt_##prov##_##mod##_##func##_##name->id) \ 188 (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ 189 (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ 190 (uintptr_t) arg3, (uintptr_t) arg4) 191 192 #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type) \ 193 struct sdt_argtype sdt_##prov##_##mod##_##func##_##name##num[1] \ 194 = { { num, type, { NULL, NULL }, \ 195 sdt_##prov##_##mod##_##func##_##name } \ 196 }; \ 197 SYSINIT(sdt_##prov##_##mod##_##func##_##name##num##_init, \ 198 SI_SUB_KDTRACE, SI_ORDER_SECOND + 2, sdt_argtype_register, \ 199 sdt_##prov##_##mod##_##func##_##name##num ); \ 200 SYSUNINIT(sdt_##prov##_##mod##_##func##_##name##num##_uninit, \ 201 SI_SUB_KDTRACE, SI_ORDER_SECOND + 2, sdt_argtype_deregister, \ 202 sdt_##prov##_##mod##_##func##_##name##num ) 203 204 #define SDT_PROBE_DEFINE1(prov, mod, func, name, sname, arg0) \ 205 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \ 206 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0) 207 208 #define SDT_PROBE_DEFINE2(prov, mod, func, name, sname, arg0, arg1) \ 209 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \ 210 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \ 211 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1) 212 213 #define SDT_PROBE_DEFINE3(prov, mod, func, name, sname, arg0, arg1, arg2)\ 214 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \ 215 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \ 216 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \ 217 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2) 218 219 #define SDT_PROBE_DEFINE4(prov, mod, func, name, sname, arg0, arg1, arg2, arg3) \ 220 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \ 221 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \ 222 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \ 223 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \ 224 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3) 225 226 #define SDT_PROBE_DEFINE5(prov, mod, func, name, sname, arg0, arg1, arg2, arg3, arg4) \ 227 SDT_PROBE_DEFINE(prov, mod, func, name, sname); \ 228 SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0); \ 229 SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1); \ 230 SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2); \ 231 SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3); \ 232 SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4) 233 234 #define SDT_PROBE1(prov, mod, func, name, arg0) \ 235 SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) 236 #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ 237 SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) 238 #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ 239 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) 240 #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ 241 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) 242 #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ 243 SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) 244 245 typedef int (*sdt_argtype_listall_func_t)(struct sdt_argtype *, void *); 246 typedef int (*sdt_probe_listall_func_t)(struct sdt_probe *, void *); 247 typedef int (*sdt_provider_listall_func_t)(struct sdt_provider *, void *); 248 249 void sdt_argtype_deregister(void *); 250 void sdt_argtype_register(void *); 251 void sdt_probe_deregister(void *); 252 void sdt_probe_register(void *); 253 void sdt_provider_deregister(void *); 254 void sdt_provider_register(void *); 255 void sdt_probe_stub(u_int32_t, uintptr_t arg0, uintptr_t arg1, uintptr_t arg2, 256 uintptr_t arg3, uintptr_t arg4); 257 int sdt_argtype_listall(struct sdt_probe *, sdt_argtype_listall_func_t, void *); 258 int sdt_probe_listall(struct sdt_provider *, sdt_probe_listall_func_t, void *); 259 int sdt_provider_listall(sdt_provider_listall_func_t,void *); 260 261 #endif /* KDTRACE_HOOKS */ 262 263 #endif /* _KERNEL */ 264 265 #endif /* _SYS_SDT_H */
Cache object: bee77a32b2fadba143cf93272149b05e
[ source navigation ] [ diff markup ] [ identifier search ] [ freetext search ] [ file search ] [ list types ] [ track identifier ]