mirror of
https://git.FreeBSD.org/ports.git
synced 2024-12-05 01:55:52 +00:00
5b75a54ddf
As Intel uses it's own directory for ifc and icc, we don't conflict with ifc anymore. Because of ABI changes, you have to recompile C++ programs (don't forget stlport-icc). Note that this port is a _work in progress_: - Icc allows to use an already installed libstdc++ from gcc, this doesn't work yet on FreeBSD. Libstdc++ on 4.x is too old, so it's unlikely we can add support for it. The headers of libstdc++ shipping with FreeBSD 5.2-CURRENT use GCCisms not (yet) supported by icc, the hardcoded search path for them also doesn't fit for FreeBSD 5.2-CURRENT. - We've incorporated parts (cxa) of the FreeBSD >= 502101 libc on < 502101 systems. It's tested on 4.x, but not on FreeBSD < 502101. - Not all (new) options (including GCC compatibility) are thoroughly tested. When encountering problems please report to me first instead of directly contacting Intel. Ackknowledgements: - Bradley T Hughes <bhughes@trolltech.com> for PR 59552, it resulted in a modification of our libc (C++ DSO Object Destruction API) we incorporate in the port on < 502101 systems. - Marius Strobl <marius@alchemy.franken.de> for his help with the port (e.g. ld.c, cxa).
215 lines
6.1 KiB
C
215 lines
6.1 KiB
C
/* Based on code marked: */
|
|
|
|
/*-
|
|
* Copyright (c) 1990, 1993
|
|
* The Regents of the University of California. All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* Chris Torek.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* from: FreeBSD: src/lib/libc/stdlib/atexit.c,v 1.7 2003/12/19 17:11:20 kan Exp
|
|
*
|
|
*/
|
|
|
|
/*
|
|
* Copyright (c) 2004 Marius Strobl <marius@alchemy.franken.de>.
|
|
* All rights reserved.
|
|
*
|
|
* The same license as above applies. If clause 3 of the license in the
|
|
* above mentioned file gets removed this file should follow and this
|
|
* sentence should get removed.
|
|
*
|
|
*/
|
|
|
|
#include <sys/cdefs.h>
|
|
__FBSDID("$FreeBSD$");
|
|
|
|
#include <stddef.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include <osreldate.h>
|
|
|
|
#if __FreeBSD_version >= 502101
|
|
#error "Not required on this version of FreeBSD."
|
|
#endif
|
|
|
|
#define ATEXIT_FN_EMPTY 0
|
|
#define ATEXIT_FN_STD 1
|
|
#define ATEXIT_FN_CXA 2
|
|
|
|
/* must be at least 32 to guarantee ANSI conformance */
|
|
#define ATEXIT_SIZE 32
|
|
|
|
extern int __isthreaded;
|
|
|
|
#if __FreeBSD_version < 500016
|
|
typedef struct {
|
|
volatile long access_lock;
|
|
volatile long lock_owner;
|
|
volatile char *fname;
|
|
volatile int lineno;
|
|
} spinlock_t;
|
|
|
|
#define _SPINLOCK_INITIALIZER { 0, 0, 0, 0 }
|
|
|
|
#define _SPINUNLOCK(_lck) (_lck)->access_lock = 0
|
|
#ifdef _LOCK_DEBUG
|
|
#define _SPINLOCK(_lck) _spinlock_debug(_lck, __FILE__, __LINE__)
|
|
#else
|
|
#define _SPINLOCK(_lck) _spinlock(_lck)
|
|
#endif
|
|
|
|
static spinlock_t thread_lock = _SPINLOCK_INITIALIZER;
|
|
|
|
#define _ATEXIT_LOCK() if (__isthreaded) _SPINLOCK(&thread_lock);
|
|
#define _ATEXIT_UNLOCK() if (__isthreaded) _SPINUNLOCK(&thread_lock);
|
|
#else
|
|
#include <pthread.h>
|
|
|
|
static pthread_mutex_t atexit_mutex = PTHREAD_MUTEX_INITIALIZER;
|
|
|
|
#define _ATEXIT_LOCK() if (__isthreaded) \
|
|
_pthread_mutex_lock(&atexit_mutex)
|
|
#define _ATEXIT_UNLOCK() if (__isthreaded) \
|
|
_pthread_mutex_unlock(&atexit_mutex)
|
|
#endif
|
|
|
|
struct atexit {
|
|
struct atexit *next; /* next in list */
|
|
int ind; /* next index in this table */
|
|
struct atexit_fn {
|
|
int fn_type; /* ATEXIT_? from above */
|
|
union {
|
|
void (*std_func)(void);
|
|
void (*cxa_func)(void *);
|
|
} fn_ptr; /* function pointer */
|
|
void *fn_arg; /* argument for CXA callback */
|
|
void *fn_dso; /* shared module handle */
|
|
} fns[ATEXIT_SIZE]; /* the table itself */
|
|
};
|
|
|
|
static struct atexit *__atexit; /* points to head of LIFO stack */
|
|
|
|
/*
|
|
* Register the function described by 'fptr' to be called at application
|
|
* exit or owning shared object unload time. This is a helper function
|
|
* for atexit and __cxa_atexit.
|
|
*/
|
|
static int
|
|
atexit_register(struct atexit_fn *fptr)
|
|
{
|
|
static struct atexit __atexit0; /* one guaranteed table */
|
|
struct atexit *p;
|
|
|
|
_ATEXIT_LOCK();
|
|
if ((p = __atexit) == NULL)
|
|
__atexit = p = &__atexit0;
|
|
else while (p->ind >= ATEXIT_SIZE) {
|
|
struct atexit *old__atexit;
|
|
old__atexit = __atexit;
|
|
_ATEXIT_UNLOCK();
|
|
if ((p = (struct atexit *)malloc(sizeof(*p))) == NULL)
|
|
return (-1);
|
|
_ATEXIT_LOCK();
|
|
if (old__atexit != __atexit) {
|
|
/* Lost race, retry operation */
|
|
_ATEXIT_UNLOCK();
|
|
free(p);
|
|
_ATEXIT_LOCK();
|
|
p = __atexit;
|
|
continue;
|
|
}
|
|
p->ind = 0;
|
|
p->next = __atexit;
|
|
__atexit = p;
|
|
}
|
|
p->fns[p->ind++] = *fptr;
|
|
_ATEXIT_UNLOCK();
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* Register a function to be performed at exit or when an shared object
|
|
* with given dso handle is unloaded dynamically.
|
|
*/
|
|
int
|
|
__cxa_atexit(void (*func)(void *), void *arg, void *dso)
|
|
{
|
|
struct atexit_fn fn;
|
|
int error;
|
|
|
|
fn.fn_type = ATEXIT_FN_CXA;
|
|
fn.fn_ptr.cxa_func = func;;
|
|
fn.fn_arg = arg;
|
|
fn.fn_dso = dso;
|
|
|
|
error = atexit_register(&fn);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* Call all handlers registered with __cxa_atexit for the shared
|
|
* object owning 'dso'. Note: if 'dso' is NULL, then all remaining
|
|
* handlers are called.
|
|
*/
|
|
void
|
|
__cxa_finalize(void *dso)
|
|
{
|
|
struct atexit *p;
|
|
struct atexit_fn fn;
|
|
int n;
|
|
|
|
_ATEXIT_LOCK();
|
|
for (p = __atexit; p; p = p->next) {
|
|
for (n = p->ind; --n >= 0;) {
|
|
if (p->fns[n].fn_type == ATEXIT_FN_EMPTY)
|
|
continue; /* already been called */
|
|
if (dso != NULL && dso != p->fns[n].fn_dso)
|
|
continue; /* wrong DSO */
|
|
fn = p->fns[n];
|
|
/*
|
|
Mark entry to indicate that this particular handler
|
|
has already been called.
|
|
*/
|
|
p->fns[n].fn_type = ATEXIT_FN_EMPTY;
|
|
_ATEXIT_UNLOCK();
|
|
|
|
/* Call the function of correct type. */
|
|
if (fn.fn_type == ATEXIT_FN_CXA)
|
|
fn.fn_ptr.cxa_func(fn.fn_arg);
|
|
else if (fn.fn_type == ATEXIT_FN_STD)
|
|
fn.fn_ptr.std_func();
|
|
_ATEXIT_LOCK();
|
|
}
|
|
}
|
|
_ATEXIT_UNLOCK();
|
|
}
|