385db7fe8f
All shim hooks are defined here. This is the interface between BSD code in FreeBSD and CDDL code from OpenSolaris. The hooks defined here are pre-processed out from the source files when the KDTRACE_HOOKS kernel option isn't defined.
112 lines
3.9 KiB
C
112 lines
3.9 KiB
C
/*-
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* Copyright (c) 2007-2008 John Birrell (jb@freebsd.org)
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* All rights reserved.
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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 THE 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 THE 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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* $FreeBSD$
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*
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* This file contains BSD shims for Sun's DTrace code.
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*/
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#ifndef _SYS_DTRACE_BSD_H
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#define _SYS_DTRACE_BSD_H
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/* Forward definitions: */
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struct trapframe;
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struct thread;
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/*
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* Cyclic clock function type definition used to hook the cyclic
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* subsystem into the appropriate timer interrupt.
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*/
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typedef void (*cyclic_clock_func_t)(struct trapframe *);
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/*
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* These external variables are actually machine-dependent, so
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* they might not actually exist.
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*
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* Defining them here avoids a proliferation of header files.
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*/
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extern cyclic_clock_func_t lapic_cyclic_clock_func[];
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/*
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* The dtrace module handles traps that occur during a DTrace probe.
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* This type definition is used in the trap handler to provide a
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* hook for the dtrace module to register it's handler with.
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*/
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typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
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int dtrace_trap(struct trapframe *, u_int);
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extern dtrace_trap_func_t dtrace_trap_func;
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/* Used by the machine dependent trap() code. */
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typedef int (*dtrace_invop_func_t)(uintptr_t, uintptr_t *, uintptr_t);
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typedef void (*dtrace_doubletrap_func_t)(void);
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/* Global variables in trap.c */
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extern dtrace_invop_func_t dtrace_invop_func;
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extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
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/* Virtual time hook function type. */
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typedef void (*dtrace_vtime_switch_func_t)(struct thread *);
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extern int dtrace_vtime_active;
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extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
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/* The fasttrap module hooks into the fork, exit and exit. */
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typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
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typedef void (*dtrace_execexit_func_t)(struct proc *);
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/* Global variable in kern_fork.c */
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extern dtrace_fork_func_t dtrace_fasttrap_fork;
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/* Global variable in kern_exec.c */
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extern dtrace_execexit_func_t dtrace_fasttrap_exec;
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/* Global variable in kern_exit.c */
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extern dtrace_execexit_func_t dtrace_fasttrap_exit;
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/* The dtmalloc provider hooks into malloc. */
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typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
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uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
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extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
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/*
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* Functions which allow the dtrace module to check that the kernel
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* hooks have been compiled with sufficient space for it's private
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* structures.
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*/
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size_t kdtrace_proc_size(void);
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size_t kdtrace_thread_size(void);
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/*
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* OpenSolaris compatible time functions returning nanoseconds.
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* On OpenSolaris these return hrtime_t which we define as uint64_t.
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*/
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uint64_t dtrace_gethrtime(void);
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uint64_t dtrace_gethrestime(void);
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#endif /* _SYS_DTRACE_BSD_H */
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