mirror of
https://codeberg.org/ziglang/zig.git
synced 2026-06-29 10:08:49 -04:00
Alex Rønne Petersen
470 lines
18 KiB
C
Vendored
470 lines
18 KiB
C
Vendored
/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright 2006-2008 John Birrell <jb@FreeBSD.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Statically Defined Tracing (SDT) definitions.
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*
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*/
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#ifndef _SYS_SDT_H
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#define _SYS_SDT_H
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#ifndef _KERNEL
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#define _DTRACE_VERSION 1
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#define DTRACE_PROBE(prov, name) { \
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extern void __dtrace_##prov##___##name(void); \
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__dtrace_##prov##___##name(); \
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}
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#define DTRACE_PROBE1(prov, name, arg1) { \
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extern void __dtrace_##prov##___##name(unsigned long); \
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__dtrace_##prov##___##name((unsigned long)arg1); \
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}
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#define DTRACE_PROBE2(prov, name, arg1, arg2) { \
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extern void __dtrace_##prov##___##name(unsigned long, \
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unsigned long); \
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__dtrace_##prov##___##name((unsigned long)arg1, \
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(unsigned long)arg2); \
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}
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#define DTRACE_PROBE3(prov, name, arg1, arg2, arg3) { \
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extern void __dtrace_##prov##___##name(unsigned long, \
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unsigned long, unsigned long); \
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__dtrace_##prov##___##name((unsigned long)arg1, \
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(unsigned long)arg2, (unsigned long)arg3); \
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}
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#define DTRACE_PROBE4(prov, name, arg1, arg2, arg3, arg4) { \
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extern void __dtrace_##prov##___##name(unsigned long, \
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unsigned long, unsigned long, unsigned long); \
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__dtrace_##prov##___##name((unsigned long)arg1, \
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(unsigned long)arg2, (unsigned long)arg3, \
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(unsigned long)arg4); \
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}
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#define DTRACE_PROBE5(prov, name, arg1, arg2, arg3, arg4, arg5) { \
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extern void __dtrace_##prov##___##name(unsigned long, \
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unsigned long, unsigned long, unsigned long, unsigned long);\
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__dtrace_##prov##___##name((unsigned long)arg1, \
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(unsigned long)arg2, (unsigned long)arg3, \
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(unsigned long)arg4, (unsigned long)arg5); \
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}
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#else /* _KERNEL */
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#include <sys/linker_set.h>
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#include <machine/sdt_machdep.h>
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extern volatile bool sdt_probes_enabled;
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#ifndef KDTRACE_HOOKS
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#define __sdt_used __unused
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#define SDT_PROVIDER_DEFINE(prov)
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#define SDT_PROVIDER_DECLARE(prov)
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#define SDT_PROBE_DEFINE(prov, mod, func, name)
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#define SDT_PROBE_DECLARE(prov, mod, func, name)
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#define SDT_PROBES_ENABLED() 0
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#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
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#define SDT_PROBE_ARGTYPE(prov, mod, func, name, num, type, xtype)
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#define SDT_PROBE_DEFINE0(prov, mod, func, name)
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#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0)
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#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1)
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#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)
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#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
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#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
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#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, \
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arg3, arg4, arg5)
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#define SDT_PROBE0(prov, mod, func, name)
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#define SDT_PROBE1(prov, mod, func, name, arg0)
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#define SDT_PROBE2(prov, mod, func, name, arg0, arg1)
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#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2)
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#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3)
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#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
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#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5)
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#define MIB_SDT_PROBE1(...)
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#define MIB_SDT_PROBE2(...)
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#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name)
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#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0)
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#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1)
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#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2)
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#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3)
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#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4)
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#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5)
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#define DTRACE_PROBE(name)
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#define DTRACE_PROBE1(name, type0, arg0)
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#define DTRACE_PROBE2(name, type0, arg0, type1, arg1)
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#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2)
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#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3)
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#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3,\
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type4, arg4)
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#else
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void sdt_probe(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
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uintptr_t);
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void sdt_probe6(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
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uintptr_t, uintptr_t);
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#define _SDT_TRACEPOINT_SET sdt_tracepoint_set
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#define _SDT_TRACEPOINT_SECTION "set_sdt_tracepoint_set"
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bool sdt_tracepoint_valid(uintptr_t patchpoint, uintptr_t target);
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void sdt_tracepoint_patch(uintptr_t patchpoint, uintptr_t target);
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void sdt_tracepoint_restore(uintptr_t patchpoint);
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#define __sdt_used
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SET_DECLARE(sdt_providers_set, struct sdt_provider);
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SET_DECLARE(sdt_probes_set, struct sdt_probe);
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SET_DECLARE(sdt_argtypes_set, struct sdt_argtype);
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#define _SDT_PROBE_NAME(prov, mod, func, name) \
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sdt_##prov##_##mod##_##func##_##name
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#define _SDT_PROVIDER_NAME(prov) \
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sdt_provider_##prov
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#define SDT_PROVIDER_DEFINE(_prov) \
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struct sdt_provider _SDT_PROVIDER_NAME(_prov) = { \
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.name = #_prov, \
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}; \
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DATA_SET(sdt_providers_set, _SDT_PROVIDER_NAME(_prov))
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#define SDT_PROVIDER_DECLARE(prov) \
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extern struct sdt_provider _SDT_PROVIDER_NAME(prov)
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#define SDT_PROBE_DEFINE(_prov, _mod, _func, _name) \
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struct sdt_probe _SDT_PROBE_NAME(_prov, _mod, _func, _name) = { \
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.version = sizeof(struct sdt_probe), \
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.prov = &_SDT_PROVIDER_NAME(_prov), \
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.mod = #_mod, \
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.func = #_func, \
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.name = #_name, \
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}; \
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DATA_SET(sdt_probes_set, _SDT_PROBE_NAME(_prov, _mod, _func, _name))
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#define SDT_PROBE_DECLARE(prov, mod, func, name) \
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extern struct sdt_probe _SDT_PROBE_NAME(prov, mod, func, name)
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#define SDT_PROBES_ENABLED() __predict_false(sdt_probes_enabled)
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#ifdef _ILP32
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#define _SDT_ASM_WORD ".long"
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#else
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#define _SDT_ASM_WORD ".quad"
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#endif
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#ifndef _SDT_ASM_PROBE_CONSTRAINT
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#define _SDT_ASM_PROBE_CONSTRAINT "i"
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#endif
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#ifndef _SDT_ASM_PROBE_OPERAND
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#define _SDT_ASM_PROBE_OPERAND "c"
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#endif
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/*
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* The asm below generates records corresponding to the structure's layout, so
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* the two must be kept in sync.
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*/
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struct sdt_tracepoint {
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struct sdt_probe *probe;
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uintptr_t patchpoint;
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uintptr_t target;
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STAILQ_ENTRY(sdt_tracepoint) tracepoint_entry;
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};
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#define __SDT_PROBE(prov, mod, func, name, uniq, f, ...) do { \
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__WEAK(__CONCAT(__start_set_, _SDT_TRACEPOINT_SET)); \
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__WEAK(__CONCAT(__stop_set_, _SDT_TRACEPOINT_SET)); \
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asm goto( \
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"0:\n" \
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_SDT_ASM_PATCH_INSTR "\n" \
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".pushsection " _SDT_TRACEPOINT_SECTION ", \"aw\"\n" \
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_SDT_ASM_WORD " %" _SDT_ASM_PROBE_OPERAND "0\n" \
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_SDT_ASM_WORD " 0b\n" \
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_SDT_ASM_WORD " %l1\n" \
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_SDT_ASM_WORD " 0\n" \
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".popsection\n" \
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: \
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: _SDT_ASM_PROBE_CONSTRAINT (&_SDT_PROBE_NAME(prov, mod, \
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func, name)) \
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: \
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: __sdt_probe##uniq); \
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if (0) { \
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__sdt_probe##uniq:; \
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f(_SDT_PROBE_NAME(prov, mod, func, name).id, __VA_ARGS__); \
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} \
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} while (0)
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#define _SDT_PROBE(prov, mod, func, name, uniq, f, ...) \
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__SDT_PROBE(prov, mod, func, name, uniq, f, __VA_ARGS__)
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#define SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
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_SDT_PROBE(prov, mod, func, name, __COUNTER__, sdt_probe, \
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(uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
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(uintptr_t)arg3, (uintptr_t)arg4)
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#define SDT_PROBE_ARGTYPE(_prov, _mod, _func, _name, _num, _type, _xtype) \
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static struct sdt_argtype \
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sdta_##_prov##_##_mod##_##_func##_##_name##_num[1] = { \
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[0] = { \
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.ndx = _num, \
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.type = _type, \
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.xtype = _xtype, \
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.probe = &_SDT_PROBE_NAME(_prov, _mod, _func, _name), \
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}, \
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}; \
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DATA_SET(sdt_argtypes_set, \
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sdta_##_prov##_##_mod##_##_func##_##_name##_num);
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#define SDT_PROBE_DEFINE0(prov, mod, func, name) \
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SDT_PROBE_DEFINE(prov, mod, func, name)
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#define SDT_PROBE_DEFINE1(prov, mod, func, name, arg0) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL)
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#define SDT_PROBE_DEFINE2(prov, mod, func, name, arg0, arg1) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL)
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#define SDT_PROBE_DEFINE3(prov, mod, func, name, arg0, arg1, arg2)\
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL)
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#define SDT_PROBE_DEFINE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL)
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#define SDT_PROBE_DEFINE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL)
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#define SDT_PROBE_DEFINE6(prov, mod, func, name, arg0, arg1, arg2, arg3,\
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arg4, arg5) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, NULL); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, NULL)
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#define SDT_PROBE_DEFINE0_XLATE(prov, mod, func, name) \
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SDT_PROBE_DEFINE(prov, mod, func, name)
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#define SDT_PROBE_DEFINE1_XLATE(prov, mod, func, name, arg0, xarg0) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0)
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#define SDT_PROBE_DEFINE2_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1)
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#define SDT_PROBE_DEFINE3_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2)
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#define SDT_PROBE_DEFINE4_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3)
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#define SDT_PROBE_DEFINE5_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4)
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#define SDT_PROBE_DEFINE6_XLATE(prov, mod, func, name, arg0, xarg0, \
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arg1, xarg1, arg2, xarg2, arg3, xarg3, arg4, xarg4, arg5, xarg5) \
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SDT_PROBE_DEFINE(prov, mod, func, name); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 0, arg0, xarg0); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 1, arg1, xarg1); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 2, arg2, xarg2); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 3, arg3, xarg3); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 4, arg4, xarg4); \
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SDT_PROBE_ARGTYPE(prov, mod, func, name, 5, arg5, xarg5)
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#define SDT_PROBE0(prov, mod, func, name) \
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SDT_PROBE(prov, mod, func, name, 0, 0, 0, 0, 0)
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#define SDT_PROBE1(prov, mod, func, name, arg0) \
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SDT_PROBE(prov, mod, func, name, arg0, 0, 0, 0, 0)
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#define SDT_PROBE2(prov, mod, func, name, arg0, arg1) \
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SDT_PROBE(prov, mod, func, name, arg0, arg1, 0, 0, 0)
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#define SDT_PROBE3(prov, mod, func, name, arg0, arg1, arg2) \
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SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, 0, 0)
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#define SDT_PROBE4(prov, mod, func, name, arg0, arg1, arg2, arg3) \
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SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, 0)
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#define SDT_PROBE5(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4) \
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SDT_PROBE(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4)
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#define SDT_PROBE6(prov, mod, func, name, arg0, arg1, arg2, arg3, arg4, arg5) \
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_SDT_PROBE(prov, mod, func, name, __COUNTER__, sdt_probe6, \
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(uintptr_t)arg0, (uintptr_t)arg1, (uintptr_t)arg2, \
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(uintptr_t)arg3, (uintptr_t)arg4, (uintptr_t)arg5)
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#ifdef KDTRACE_MIB_SDT
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#define MIB_SDT_PROBE1(...) SDT_PROBE1(mib, __VA_ARGS__)
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#define MIB_SDT_PROBE2(...) SDT_PROBE2(mib, __VA_ARGS__)
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#else
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#define MIB_SDT_PROBE1(...)
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#define MIB_SDT_PROBE2(...)
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#endif
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#define DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) do { \
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static SDT_PROBE_DEFINE(sdt, , , name); \
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SDT_PROBE(sdt, , , name, arg0, arg1, arg2, arg3, arg4);
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#define DTRACE_PROBE_IMPL_END } while (0)
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#define DTRACE_PROBE(name) \
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DTRACE_PROBE_IMPL_START(name, 0, 0, 0, 0, 0) \
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DTRACE_PROBE_IMPL_END
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#define DTRACE_PROBE1(name, type0, arg0) \
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DTRACE_PROBE_IMPL_START(name, arg0, 0, 0, 0, 0) \
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SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
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DTRACE_PROBE_IMPL_END
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#define DTRACE_PROBE2(name, type0, arg0, type1, arg1) \
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DTRACE_PROBE_IMPL_START(name, arg0, arg1, 0, 0, 0) \
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SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
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DTRACE_PROBE_IMPL_END
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#define DTRACE_PROBE3(name, type0, arg0, type1, arg1, type2, arg2) \
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DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, 0, 0) \
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SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
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DTRACE_PROBE_IMPL_END
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#define DTRACE_PROBE4(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3) \
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DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, 0) \
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SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
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DTRACE_PROBE_IMPL_END
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#define DTRACE_PROBE5(name, type0, arg0, type1, arg1, type2, arg2, type3, arg3, \
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type4, arg4) \
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DTRACE_PROBE_IMPL_START(name, arg0, arg1, arg2, arg3, arg4) \
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SDT_PROBE_ARGTYPE(sdt, , , name, 0, #type0, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 1, #type1, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 2, #type2, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 3, #type3, NULL); \
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SDT_PROBE_ARGTYPE(sdt, , , name, 4, #type4, NULL); \
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DTRACE_PROBE_IMPL_END
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#endif /* KDTRACE_HOOKS */
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/*
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* This type definition must match that of dtrace_probe. It is defined this
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* way to avoid having to rely on CDDL code.
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*/
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typedef void (*sdt_probe_func_t)(uint32_t, uintptr_t arg0, uintptr_t arg1,
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uintptr_t arg2, uintptr_t arg3, uintptr_t arg4, uintptr_t arg5);
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/*
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* The 'sdt' provider will set it to dtrace_probe when it loads.
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*/
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extern sdt_probe_func_t sdt_probe_func;
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struct sdt_probe;
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struct sdt_provider;
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struct linker_file;
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struct sdt_argtype {
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int ndx; /* Argument index. */
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const char *type; /* Argument type string. */
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const char *xtype; /* Translated argument type. */
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TAILQ_ENTRY(sdt_argtype)
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argtype_entry; /* Argument type list entry. */
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struct sdt_probe *probe; /* Ptr to the probe structure. */
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};
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struct sdt_probe {
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int version; /* Set to sizeof(struct sdt_probe). */
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struct sdt_provider *prov; /* Ptr to the provider structure. */
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TAILQ_ENTRY(sdt_probe)
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probe_entry; /* SDT probe list entry. */
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TAILQ_HEAD(, sdt_argtype) argtype_list;
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STAILQ_HEAD(, sdt_tracepoint) tracepoint_list;
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const char *mod;
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const char *func;
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const char *name;
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id_t id; /* DTrace probe ID. */
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int n_args; /* Number of arguments. */
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struct linker_file *sdtp_lf; /* Module in which we're defined. */
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};
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struct sdt_provider {
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char *name; /* Provider name. */
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TAILQ_ENTRY(sdt_provider)
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prov_entry; /* SDT provider list entry. */
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uintptr_t id; /* DTrace provider ID. */
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int sdt_refs; /* Number of module references. */
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};
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void sdt_probe_stub(uint32_t, uintptr_t, uintptr_t, uintptr_t, uintptr_t,
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uintptr_t, uintptr_t);
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SDT_PROVIDER_DECLARE(sdt);
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#endif /* _KERNEL */
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#endif /* _SYS_SDT_H */ |