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minix/sys/sys/dtrace_bsd.h
Ben Gras 6c8f7fc3ba netbsd dirent.h, import sys/sys *.h, mfs cleanup 
. add all sys/sys headers not already present to help compiling
	. take netbsd dirent.h and struct dirent; main result is
	  introducing d_type and d_namlen that have to be set by getdents()
	  in all FS code implementing it
	. d_off is gone
	. alignment of the struct has become 8 bytes instead of 4
	. remove _MAX_BLOCK_SIZE, _MIN_BLOCK_SIZE, _STATIC_BLOCK_SIZE
	. libminlib: cleanup unused yet duplicate code
	. mfs: throw out the long-broken v1, v2 support
	. new test for dirent contents filled by getdents()

Change-Id: I1459755c7ba5e5d1c9396d3a587ce6e63ddc283e
2014-03-01 09:04:59 +01:00

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/* $NetBSD: dtrace_bsd.h,v 1.5 2012/01/30 23:31:27 matt Exp $ */
/*-
* Copyright (c) 2007-2008 John Birrell (jb@freebsd.org)
* All rights reserved.
*
* 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 THE 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 THE 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: src/sys/sys/dtrace_bsd.h,v 1.3.2.1 2009/08/03 08:13:06 kensmith Exp $
*
* This file contains BSD shims for Sun's DTrace code.
*/
#ifndef _SYS_DTRACE_BSD_H
#define _SYS_DTRACE_BSD_H
#if defined(_KERNEL_OPT)
#include "opt_dtrace.h"
#endif
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/kmem.h>
#include <sys/proc.h>
/* Forward definitions: */
struct mbuf;
struct trapframe;
struct lwp;
struct vattr;
struct vnode;
struct ucred;
/*
* Cyclic clock function type definition used to hook the cyclic
* subsystem into the appropriate timer interrupt.
*/
typedef void (*cyclic_clock_func_t)(struct trapframe *);
/*
* These external variables are actually machine-dependent, so
* they might not actually exist.
*
* Defining them here avoids a proliferation of header files.
*/
extern cyclic_clock_func_t lapic_cyclic_clock_func[];
/*
* The dtrace module handles traps that occur during a DTrace probe.
* This type definition is used in the trap handler to provide a
* hook for the dtrace module to register it's handler with.
*/
typedef int (*dtrace_trap_func_t)(struct trapframe *, u_int);
int dtrace_trap(struct trapframe *, u_int);
extern dtrace_trap_func_t dtrace_trap_func;
/* Used by the machine dependent trap() code. */
typedef int (*dtrace_invop_func_t)(uintptr_t, uintptr_t *, uintptr_t);
typedef void (*dtrace_doubletrap_func_t)(void);
/* Global variables in trap.c */
extern dtrace_invop_func_t dtrace_invop_func;
extern dtrace_doubletrap_func_t dtrace_doubletrap_func;
/* Virtual time hook function type. */
typedef void (*dtrace_vtime_switch_func_t)(struct lwp *);
extern int dtrace_vtime_active;
extern dtrace_vtime_switch_func_t dtrace_vtime_switch_func;
/* The fasttrap module hooks into the fork, exit and exit. */
typedef void (*dtrace_fork_func_t)(struct proc *, struct proc *);
typedef void (*dtrace_execexit_func_t)(struct proc *);
/* Global variable in kern_fork.c */
extern dtrace_fork_func_t dtrace_fasttrap_fork;
/* Global variable in kern_exec.c */
extern dtrace_execexit_func_t dtrace_fasttrap_exec;
/* Global variable in kern_exit.c */
extern dtrace_execexit_func_t dtrace_fasttrap_exit;
/* The dtmalloc provider hooks into malloc. */
typedef void (*dtrace_malloc_probe_func_t)(u_int32_t, uintptr_t arg0,
uintptr_t arg1, uintptr_t arg2, uintptr_t arg3, uintptr_t arg4);
extern dtrace_malloc_probe_func_t dtrace_malloc_probe;
/* dtnfsclient NFSv3 access cache provider hooks. */
typedef void (*dtrace_nfsclient_accesscache_flush_probe_func_t)(uint32_t,
struct vnode *);
extern dtrace_nfsclient_accesscache_flush_probe_func_t
dtrace_nfsclient_accesscache_flush_done_probe;
typedef void (*dtrace_nfsclient_accesscache_get_probe_func_t)(uint32_t,
struct vnode *, uid_t, uint32_t);
extern dtrace_nfsclient_accesscache_get_probe_func_t
dtrace_nfsclient_accesscache_get_hit_probe,
dtrace_nfsclient_accesscache_get_miss_probe;
typedef void (*dtrace_nfsclient_accesscache_load_probe_func_t)(uint32_t,
struct vnode *, uid_t, uint32_t, int);
extern dtrace_nfsclient_accesscache_load_probe_func_t
dtrace_nfsclient_accesscache_load_done_probe;
/* dtnfsclient NFSv[23] attribute cache provider hooks. */
typedef void (*dtrace_nfsclient_attrcache_flush_probe_func_t)(uint32_t,
struct vnode *);
extern dtrace_nfsclient_attrcache_flush_probe_func_t
dtrace_nfsclient_attrcache_flush_done_probe;
typedef void (*dtrace_nfsclient_attrcache_get_hit_probe_func_t)(uint32_t,
struct vnode *, struct vattr *);
extern dtrace_nfsclient_attrcache_get_hit_probe_func_t
dtrace_nfsclient_attrcache_get_hit_probe;
typedef void (*dtrace_nfsclient_attrcache_get_miss_probe_func_t)(uint32_t,
struct vnode *);
extern dtrace_nfsclient_attrcache_get_miss_probe_func_t
dtrace_nfsclient_attrcache_get_miss_probe;
typedef void (*dtrace_nfsclient_attrcache_load_probe_func_t)(uint32_t,
struct vnode *, struct vattr *, int);
extern dtrace_nfsclient_attrcache_load_probe_func_t
dtrace_nfsclient_attrcache_load_done_probe;
/* dtnfsclient NFSv[23] RPC provider hooks. */
typedef void (*dtrace_nfsclient_nfs23_start_probe_func_t)(uint32_t,
struct vnode *, struct mbuf *, struct ucred *, int);
extern dtrace_nfsclient_nfs23_start_probe_func_t
dtrace_nfsclient_nfs23_start_probe;
typedef void (*dtrace_nfsclient_nfs23_done_probe_func_t)(uint32_t,
struct vnode *, struct mbuf *, struct ucred *, int, int);
extern dtrace_nfsclient_nfs23_done_probe_func_t
dtrace_nfsclient_nfs23_done_probe;
/*
* OpenSolaris compatible time functions returning nanoseconds.
* On OpenSolaris these return hrtime_t which we define as uint64_t.
*/
uint64_t dtrace_gethrtime(void);
uint64_t dtrace_gethrestime(void);
/* sizes based on DTrace structure requirements */
#define KDTRACE_PROC_SIZE 64
#define KDTRACE_PROC_ZERO 8
#define KDTRACE_THREAD_SIZE 256
#define KDTRACE_THREAD_ZERO 64
/*
* Functions for managing the opaque DTrace memory areas for
* processes and lwps.
*/
static inline size_t kdtrace_proc_size(void);
static inline void kdtrace_proc_ctor(void *, struct proc *);
static inline void kdtrace_proc_dtor(void *, struct proc *);
static inline size_t kdtrace_thread_size(void);
static inline void kdtrace_thread_ctor(void *, struct lwp *);
static inline void kdtrace_thread_dtor(void *, struct lwp *);
/* Return the DTrace process data size compiled in the kernel hooks. */
static inline size_t
kdtrace_proc_size(void)
{
return KDTRACE_PROC_SIZE;
}
/* Return the DTrace thread data size compiled in the kernel hooks. */
static inline size_t
kdtrace_thread_size(void)
{
return KDTRACE_THREAD_SIZE;
}
static inline void
kdtrace_proc_ctor(void *arg, struct proc *p)
{
#ifdef KDTRACE_HOOKS
p->p_dtrace = kmem_zalloc(KDTRACE_PROC_SIZE, KM_SLEEP);
#endif
}
static inline void
kdtrace_proc_dtor(void *arg, struct proc *p)
{
#ifdef KDTRACE_HOOKS
if (p->p_dtrace != NULL) {
kmem_free(p->p_dtrace, KDTRACE_PROC_SIZE);
p->p_dtrace = NULL;
}
#endif
}
static inline void
kdtrace_thread_ctor(void *arg, struct lwp *l)
{
#ifdef KDTRACE_HOOKS
l->l_dtrace = kmem_zalloc(KDTRACE_THREAD_SIZE, KM_SLEEP);
#endif
}
static inline void
kdtrace_thread_dtor(void *arg, struct lwp *l)
{
#ifdef KDTRACE_HOOKS
if (l->l_dtrace != NULL) {
kmem_free(l->l_dtrace, KDTRACE_THREAD_SIZE);
l->l_dtrace = NULL;
}
#endif
}
#endif /* _SYS_DTRACE_BSD_H */
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