/*- * Copyright 2006-2008 John Birrell * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ * * Statically Defined Tracing (SDT) definitions. * */ #ifndef _SYS_SDT_H #define _SYS_SDT_H #ifndef _KERNEL #define DTRACE_PROBE(prov, name) { \ extern void __dtrace_##prov##___##name(void); \ __dtrace_##prov##___##name(); \ } #define DTRACE_PROBE1(prov, name, arg1) { \ extern void __dtrace_##prov##___##name(unsigned long); \ __dtrace_##prov##___##name((unsigned long)arg1); \ } #define DTRACE_PROBE2(prov, name, arg1, arg2) { \ extern void __dtrace_##prov##___##name(unsigned long, \ unsigned long); \ __dtrace_##prov##___##name((unsigned long)arg1, \ (unsigned long)arg2); \ } #define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \ extern void __dtrace_##prov##___##name(unsigned long, \ unsigned long, unsigned long); \ __dtrace_##prov##___##name((unsigned long)arg1, \ (unsigned long)arg2, (unsigned long)arg3); \ } #define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \ extern void __dtrace_##prov##___##name(unsigned long, \ unsigned long, unsigned long, unsigned long); \ __dtrace_##prov##___##name((unsigned long)arg1, \ (unsigned long)arg2, (unsigned long)arg3, \ (unsigned long)arg4); \ } #define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \ extern void __dtrace_##prov##___##name(unsigned long, \ unsigned long, unsigned long, unsigned long, unsigned long);\ __dtrace_##prov##___##name((unsigned long)arg1, \ (unsigned long)arg2, (unsigned long)arg3, \ (unsigned long)arg4, (unsigned long)arg5); \ } #else /* _KERNEL */ #include #include #ifndef KDTRACE_HOOKS #define SDT_PROVIDER_DEFINE(prov) #define SDT_PROVIDER_DECLARE(prov) #define SDT_PROBE_DEFINE(prov, mod, func, name) #define SDT_PROBE_DECLARE(prov, mod, func, name) #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) #define SDT_PROBE_DEFINE0(prov, mod, func, name) #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2) #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \ arg3, arg4, arg5) #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, \ arg3, arg4, arg5, arg6) #define SDT_PROBE0(prov, mod, func, name) #define SDT_PROBE1(prov, mod, func, name, arg0) #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ arg6) #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1) #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2) #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3) #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ xarg6) #define DTRACE_PROBE(name) #define DTRACE_PROBE1(name, type0, arg0) #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\ type4, arg4) #else SET_DECLARE(sdt_providers_set, struct sdt_provider); SET_DECLARE(sdt_probes_set, struct sdt_probe); SET_DECLARE(sdt_argtypes_set, struct sdt_argtype); #define SDT_PROVIDER_DEFINE(prov) \ struct sdt_provider sdt_provider_##prov[1] = { \ { #prov, { NULL, NULL }, 0, 0 } \ }; \ DATA_SET(sdt_providers_set, sdt_provider_##prov); #define SDT_PROVIDER_DECLARE(prov) \ extern struct sdt_provider sdt_provider_##prov[1] #define SDT_PROBE_DEFINE(prov, mod, func, name) \ struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] = { \ { sizeof(struct sdt_probe), sdt_provider_##prov, \ { NULL, NULL }, { NULL, NULL }, #mod, #func, #name, 0, 0, \ NULL } \ }; \ DATA_SET(sdt_probes_set, sdt_##prov##_##mod##_##func##_##name); #define SDT_PROBE_DECLARE(prov, mod, func, name) \ extern struct sdt_probe sdt_##prov##_##mod##_##func##_##name[1] #define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) do { \ if (sdt_##prov##_##mod##_##func##_##name->id) \ (*sdt_probe_func)(sdt_##prov##_##mod##_##func##_##name->id, \ (uintptr_t) arg0, (uintptr_t) arg1, (uintptr_t) arg2, \ (uintptr_t) arg3, (uintptr_t) arg4); \ } while (0) #define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype) \ static struct sdt_argtype sdta_##prov##_##mod##_##func##_##name##num[1] \ = { { num, type, xtype, { NULL, NULL }, \ sdt_##prov##_##mod##_##func##_##name } \ }; \ DATA_SET(sdt_argtypes_set, sdta_##prov##_##mod##_##func##_##name##num); #define SDT_PROBE_DEFINE0(prov, mod, func, name) \ SDT_PROBE_DEFINE(prov, mod, func, name) #define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL) #define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL) #define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL) #define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL) #define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL) #define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\ arg4, arg5) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL) #define SDT_PROBE_DEFINE7(prov, mod, func, name, arg0, arg1, arg2, arg3,\ arg4, arg5, arg6) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, NULL) #define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \ SDT_PROBE_DEFINE(prov, mod, func, name) #define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0) #define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1) #define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2) #define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3) #define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4) #define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5) #define SDT_PROBE_DEFINE7_XLATE(prov, mod, func, name, arg0, xarg0, \ arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5, arg6, \ xarg6) \ SDT_PROBE_DEFINE(prov, mod, func, name); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5); \ SDT_PROBE_ARGTYPE(prov, mod, func, name, 6, arg6, xarg6) #define SDT_PROBE0(prov, mod, func, name) \ SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0) #define SDT_PROBE1(prov, mod, func, name, arg0) \ SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0) #define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \ SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0) #define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \ SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0) #define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \ SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0) #define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \ SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) #define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \ do { \ if (sdt_##prov##_##mod##_##func##_##name->id) \ (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ uintptr_t, uintptr_t, uintptr_t))sdt_probe_func)( \ sdt_##prov##_##mod##_##func##_##name->id, \ (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5);\ } while (0) #define SDT_PROBE7(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5, \ arg6) \ do { \ if (sdt_##prov##_##mod##_##func##_##name->id) \ (*(void (*)(uint32_t, uintptr_t, uintptr_t, uintptr_t, \ uintptr_t, uintptr_t, uintptr_t, uintptr_t)) \ sdt_probe_func)( \ sdt_##prov##_##mod##_##func##_##name->id, \ (uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \ (uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5, \ (uintptr_t)arg6); \ } while (0) #define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \ static SDT_PROBE_DEFINE(sdt, , , name); \ SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4); #define DTRACE_PROBE_IMPL_END } while (0) #define DTRACE_PROBE(name) \ DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \ DTRACE_PROBE_IMPL_END #define DTRACE_PROBE1(name, type0, arg0) \ DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \ SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ DTRACE_PROBE_IMPL_END #define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \ DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \ SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ DTRACE_PROBE_IMPL_END #define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \ DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \ SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ DTRACE_PROBE_IMPL_END #define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \ DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \ SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ DTRACE_PROBE_IMPL_END #define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \ type4, arg4) \ DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \ SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \ SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \ DTRACE_PROBE_IMPL_END #endif /* KDTRACE_HOOKS */ /* * This type definition must match that of dtrace_probe. It is defined this * way to avoid having to rely on CDDL code. */ typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4); /* * The 'sdt' provider will set it to dtrace_probe when it loads. */ extern sdt_probe_func_t sdt_probe_func; struct sdt_probe; struct sdt_provider; struct linker_file; struct sdt_argtype { int ndx; /* Argument index. */ const char *type; /* Argument type string. */ const char *xtype; /* Translated argument type. */ TAILQ_ENTRY(sdt_argtype) argtype_entry; /* Argument type list entry. */ struct sdt_probe *probe; /* Ptr to the probe structure. */ }; struct sdt_probe { int version; /* Set to sizeof(struct sdt_probe). */ struct sdt_provider *prov; /* Ptr to the provider structure. */ TAILQ_ENTRY(sdt_probe) probe_entry; /* SDT probe list entry. */ TAILQ_HEAD(argtype_list_head, sdt_argtype) argtype_list; const char *mod; const char *func; const char *name; id_t id; /* DTrace probe ID. */ int n_args; /* Number of arguments. */ struct linker_file *sdtp_lf; /* Module in which we're defined. */ }; struct sdt_provider { char *name; /* Provider name. */ TAILQ_ENTRY(sdt_provider) prov_entry; /* SDT provider list entry. */ uintptr_t id; /* DTrace provider ID. */ int sdt_refs; /* Number of module references. */ }; void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t); SDT_PROVIDER_DECLARE(sdt); #endif /* _KERNEL */ #endif /* _SYS_SDT_H */