mirror of
https://github.com/freebsd/freebsd-src
synced 2024-07-22 18:56:38 +00:00
a2f733abcf
Apply the following automated changes to try to eliminate no-longer-needed sys/cdefs.h includes as well as now-empty blank lines in a row. Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/ Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/ Remove /\n+#if.*\n#endif.*\n+/ Remove /^#if.*\n#endif.*\n/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/ Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/ Sponsored by: Netflix
149 lines
3.6 KiB
C
149 lines
3.6 KiB
C
/*-
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*
|
|
* Copyright (c) 2019 The FreeBSD Foundation
|
|
* All rights reserved.
|
|
*
|
|
* This software was developed by Konstantin Belousov <kib@FreeBSD.org>
|
|
* under sponsorship from the FreeBSD Foundation.
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/mman.h>
|
|
#include <rtld_malloc.h>
|
|
#include "thr_private.h"
|
|
|
|
int npagesizes;
|
|
size_t *pagesizes;
|
|
static size_t pagesizes_d[2];
|
|
static struct umutex thr_malloc_umtx;
|
|
static u_int thr_malloc_umtx_level;
|
|
|
|
void
|
|
__thr_malloc_init(void)
|
|
{
|
|
|
|
if (npagesizes != 0)
|
|
return;
|
|
npagesizes = getpagesizes(pagesizes_d, nitems(pagesizes_d));
|
|
if (npagesizes == -1) {
|
|
PANIC("Unable to read page sizes");
|
|
}
|
|
pagesizes = pagesizes_d;
|
|
_thr_umutex_init(&thr_malloc_umtx);
|
|
}
|
|
|
|
static void
|
|
thr_malloc_lock(struct pthread *curthread)
|
|
{
|
|
uint32_t curtid;
|
|
|
|
if (curthread == NULL)
|
|
return;
|
|
curthread->locklevel++;
|
|
curtid = TID(curthread);
|
|
if ((uint32_t)thr_malloc_umtx.m_owner == curtid)
|
|
thr_malloc_umtx_level++;
|
|
else
|
|
_thr_umutex_lock(&thr_malloc_umtx, curtid);
|
|
}
|
|
|
|
static void
|
|
thr_malloc_unlock(struct pthread *curthread)
|
|
{
|
|
|
|
if (curthread == NULL)
|
|
return;
|
|
if (thr_malloc_umtx_level > 0)
|
|
thr_malloc_umtx_level--;
|
|
else
|
|
_thr_umutex_unlock(&thr_malloc_umtx, TID(curthread));
|
|
curthread->locklevel--;
|
|
_thr_ast(curthread);
|
|
}
|
|
|
|
void *
|
|
__thr_calloc(size_t num, size_t size)
|
|
{
|
|
struct pthread *curthread;
|
|
void *res;
|
|
|
|
curthread = _get_curthread();
|
|
thr_malloc_lock(curthread);
|
|
res = __crt_calloc(num, size);
|
|
thr_malloc_unlock(curthread);
|
|
return (res);
|
|
}
|
|
|
|
void
|
|
__thr_free(void *cp)
|
|
{
|
|
struct pthread *curthread;
|
|
|
|
curthread = _get_curthread();
|
|
thr_malloc_lock(curthread);
|
|
__crt_free(cp);
|
|
thr_malloc_unlock(curthread);
|
|
}
|
|
|
|
void *
|
|
__thr_malloc(size_t nbytes)
|
|
{
|
|
struct pthread *curthread;
|
|
void *res;
|
|
|
|
curthread = _get_curthread();
|
|
thr_malloc_lock(curthread);
|
|
res = __crt_malloc(nbytes);
|
|
thr_malloc_unlock(curthread);
|
|
return (res);
|
|
}
|
|
|
|
void *
|
|
__thr_realloc(void *cp, size_t nbytes)
|
|
{
|
|
struct pthread *curthread;
|
|
void *res;
|
|
|
|
curthread = _get_curthread();
|
|
thr_malloc_lock(curthread);
|
|
res = __crt_realloc(cp, nbytes);
|
|
thr_malloc_unlock(curthread);
|
|
return (res);
|
|
}
|
|
|
|
void
|
|
__thr_malloc_prefork(struct pthread *curthread)
|
|
{
|
|
|
|
_thr_umutex_lock(&thr_malloc_umtx, TID(curthread));
|
|
}
|
|
|
|
void
|
|
__thr_malloc_postfork(struct pthread *curthread)
|
|
{
|
|
|
|
_thr_umutex_unlock(&thr_malloc_umtx, TID(curthread));
|
|
}
|