6c8f7fc3ba
. 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
201 lines
6.2 KiB
C
201 lines
6.2 KiB
C
/* $NetBSD: kernhist.h,v 1.5 2012/07/30 23:56:48 matt Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1997 Charles D. Cranor and Washington University.
|
|
* 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 ``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 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.
|
|
*
|
|
* from: NetBSD: uvm_stat.h,v 1.49 2011/04/23 18:14:13 rmind Exp
|
|
* from: Id: uvm_stat.h,v 1.1.2.4 1998/02/07 01:16:56 chs Exp
|
|
*/
|
|
|
|
#ifndef _SYS_KERNHIST_H_
|
|
#define _SYS_KERNHIST_H_
|
|
|
|
#if defined(_KERNEL_OPT)
|
|
#include "opt_kernhist.h"
|
|
#endif
|
|
|
|
#include <sys/queue.h>
|
|
#ifdef KERNHIST
|
|
#include <sys/cpu.h>
|
|
#endif
|
|
|
|
/*
|
|
* kernel history/tracing, was uvm_stat
|
|
*/
|
|
|
|
struct kern_history_ent {
|
|
struct timeval tv; /* time stamp */
|
|
int cpunum;
|
|
const char *fmt; /* printf format */
|
|
size_t fmtlen; /* length of printf format */
|
|
const char *fn; /* function name */
|
|
size_t fnlen; /* length of function name */
|
|
u_long call; /* function call number */
|
|
u_long v[4]; /* values */
|
|
};
|
|
|
|
struct kern_history {
|
|
const char *name; /* name of this history */
|
|
size_t namelen; /* length of name, not including null */
|
|
LIST_ENTRY(kern_history) list; /* link on list of all histories */
|
|
unsigned int n; /* number of entries */
|
|
unsigned int f; /* next free one */
|
|
struct kern_history_ent *e; /* the allocated entries */
|
|
};
|
|
|
|
LIST_HEAD(kern_history_head, kern_history);
|
|
|
|
/*
|
|
* grovelling lists all at once. we currently do not allow more than
|
|
* 32 histories to exist, as the way to dump a number of them at once
|
|
* is by calling kern_hist() with a bitmask.
|
|
*
|
|
* XXX extend this to have a registration function? however, there
|
|
* needs to be static ones as UVM requires this before almost anything
|
|
* else is setup.
|
|
*/
|
|
|
|
/* this is used to set the size of some arrays */
|
|
#define MAXHISTS 32
|
|
|
|
/* and these are the bit values of each history */
|
|
#define KERNHIST_UVMMAPHIST 0x00000001 /* maphist */
|
|
#define KERNHIST_UVMPDHIST 0x00000002 /* pdhist */
|
|
#define KERNHIST_UVMUBCHIST 0x00000004 /* ubchist */
|
|
#define KERNHIST_UVMLOANHIST 0x00000008 /* loanhist */
|
|
|
|
#ifdef _KERNEL
|
|
|
|
/*
|
|
* macros to use the history/tracing code. note that KERNHIST_LOG
|
|
* must take 4 arguments (even if they are ignored by the format).
|
|
*/
|
|
#ifndef KERNHIST
|
|
#define KERNHIST_DECL(NAME)
|
|
#define KERNHIST_DEFINE(NAME)
|
|
#define KERNHIST_INIT(NAME,N)
|
|
#define KERNHIST_INIT_STATIC(NAME,BUF)
|
|
#define KERNHIST_LOG(NAME,FMT,A,B,C,D)
|
|
#define KERNHIST_CALLED(NAME)
|
|
#define KERNHIST_FUNC(FNAME)
|
|
#define kernhist_dump(NAME)
|
|
#else
|
|
#include <sys/kernel.h> /* for "cold" variable */
|
|
#include <sys/atomic.h>
|
|
#include <sys/kmem.h>
|
|
|
|
extern struct kern_history_head kern_histories;
|
|
|
|
#define KERNHIST_DECL(NAME) extern struct kern_history NAME
|
|
#define KERNHIST_DEFINE(NAME) struct kern_history NAME
|
|
|
|
#define KERNHIST_INIT(NAME,N) \
|
|
do { \
|
|
(NAME).name = __STRING(NAME); \
|
|
(NAME).namelen = strlen(__STRING(NAME)); \
|
|
(NAME).n = (N); \
|
|
(NAME).f = 0; \
|
|
(NAME).e = (struct kern_history_ent *) \
|
|
kmem_zalloc(sizeof(struct kern_history_ent) * (N), KM_SLEEP); \
|
|
LIST_INSERT_HEAD(&kern_histories, &(NAME), list); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define KERNHIST_INIT_STATIC(NAME,BUF) \
|
|
do { \
|
|
(NAME).name = __STRING(NAME); \
|
|
(NAME).namelen = strlen(__STRING(NAME)); \
|
|
(NAME).n = sizeof(BUF) / sizeof(struct kern_history_ent); \
|
|
(NAME).f = 0; \
|
|
(NAME).e = (struct kern_history_ent *) (BUF); \
|
|
memset((NAME).e, 0, sizeof(struct kern_history_ent) * (NAME).n); \
|
|
LIST_INSERT_HEAD(&kern_histories, &(NAME), list); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#if defined(KERNHIST_PRINT)
|
|
extern int kernhist_print_enabled;
|
|
#define KERNHIST_PRINTNOW(E) \
|
|
do { \
|
|
if (kernhist_print_enabled) { \
|
|
kernhist_entry_print(E); \
|
|
DELAY(100000); \
|
|
} \
|
|
} while (/*CONSTCOND*/ 0)
|
|
#else
|
|
#define KERNHIST_PRINTNOW(E) /* nothing */
|
|
#endif
|
|
|
|
#define KERNHIST_LOG(NAME,FMT,A,B,C,D) \
|
|
do { \
|
|
unsigned int _i_, _j_; \
|
|
do { \
|
|
_i_ = (NAME).f; \
|
|
_j_ = (_i_ + 1 < (NAME).n) ? _i_ + 1 : 0; \
|
|
} while (atomic_cas_uint(&(NAME).f, _i_, _j_) != _i_); \
|
|
struct kern_history_ent * const _e_ = &(NAME).e[_i_]; \
|
|
if (__predict_true(!cold)) \
|
|
microtime(&_e_->tv); \
|
|
_e_->cpunum = cpu_number(); \
|
|
_e_->fmt = (FMT); \
|
|
_e_->fmtlen = strlen(FMT); \
|
|
_e_->fn = _kernhist_name; \
|
|
_e_->fnlen = strlen(_kernhist_name); \
|
|
_e_->call = _kernhist_call; \
|
|
_e_->v[0] = (u_long)(A); \
|
|
_e_->v[1] = (u_long)(B); \
|
|
_e_->v[2] = (u_long)(C); \
|
|
_e_->v[3] = (u_long)(D); \
|
|
KERNHIST_PRINTNOW(_e_); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define KERNHIST_CALLED(NAME) \
|
|
do { \
|
|
_kernhist_call = atomic_inc_uint_nv(&_kernhist_cnt); \
|
|
KERNHIST_LOG(NAME, "called!", 0, 0, 0, 0); \
|
|
} while (/*CONSTCOND*/ 0)
|
|
|
|
#define KERNHIST_FUNC(FNAME) \
|
|
static unsigned int _kernhist_cnt = 0; \
|
|
static const char *const _kernhist_name = FNAME; \
|
|
int _kernhist_call = 0;
|
|
|
|
static inline void kernhist_entry_print(const struct kern_history_ent *);
|
|
|
|
static inline void
|
|
kernhist_entry_print(const struct kern_history_ent *e)
|
|
{
|
|
printf("%06" PRIu64 ".%06d ", e->tv.tv_sec, e->tv.tv_usec);
|
|
printf("%s#%ld@%d: ", e->fn, e->call, e->cpunum);
|
|
printf(e->fmt, e->v[0], e->v[1], e->v[2], e->v[3]);
|
|
printf("\n");
|
|
}
|
|
|
|
#if defined(DDB)
|
|
void kernhist_print(void (*)(const char *, ...) __printflike(1, 2));
|
|
#endif /* DDB */
|
|
|
|
#endif /* KERNHIST */
|
|
|
|
#endif /* _KERNEL */
|
|
|
|
#endif /* _SYS_KERNHIST_H_ */
|