157 lines
5.3 KiB
C
157 lines
5.3 KiB
C
/* $NetBSD: c++rt0.c,v 1.4 2008/04/28 20:22:54 martin Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1998 The NetBSD Foundation, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to The NetBSD Foundation
|
|
* by Paul Kranenburg.
|
|
*
|
|
* 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
|
|
*/
|
|
|
|
/*
|
|
* Run-time module for GNU C++ compiled shared libraries.
|
|
*
|
|
* The linker constructs the following arrays of pointers to global
|
|
* constructors and destructors. The first element contains the
|
|
* number of pointers in each.
|
|
* The tables are also null-terminated.
|
|
*/
|
|
#include <stdlib.h>
|
|
|
|
|
|
/*
|
|
* We make the __{C,D}TOR_LIST__ symbols appear as type `SETD' and
|
|
* include a dummy local function in the set. This keeps references
|
|
* to these symbols local to the shared object this module is linked to.
|
|
*/
|
|
static void dummy __P((void)) { return; }
|
|
|
|
/* Note: this is "a.out" dependent. */
|
|
__asm(".stabs \"___CTOR_LIST__\",22,0,0,_dummy");
|
|
__asm(".stabs \"___DTOR_LIST__\",22,0,0,_dummy");
|
|
|
|
#ifdef __arm32__ /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#define ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#endif /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
|
|
void (*__CTOR_LIST__[0]) __P((void));
|
|
void (*__DTOR_LIST__[0]) __P((void));
|
|
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
static void __dtors __P((long)); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
static void __ctors __P((long)); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
static void __dtors __P((void));
|
|
static void __ctors __P((void));
|
|
#endif
|
|
|
|
static void
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__dtors(base) /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
long base; /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__dtors()
|
|
#endif
|
|
{
|
|
unsigned long i = (unsigned long) __DTOR_LIST__[0];
|
|
void (**p)(void) = __DTOR_LIST__ + i;
|
|
|
|
while (i--)
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
(*(void (*)(void))((char *)(*p--) + base))(); /* XXX ... */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
(**p--)();
|
|
#endif
|
|
}
|
|
|
|
static void
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__ctors(base) /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
long base; /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__ctors()
|
|
#endif
|
|
{
|
|
unsigned long i = (unsigned long) __CTOR_LIST__[0];
|
|
void (**p)(void) = __CTOR_LIST__ + 1;
|
|
|
|
while (i--)
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
(*(void (*)(void))((char *)(*p++) + base))(); /* XXX ... */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
(**p++)();
|
|
#endif
|
|
}
|
|
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
extern void __init __P((long)) __asm(".init"); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
extern void __fini __P((long)) __asm(".fini"); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
extern void __init __P((void)) __asm(".init");
|
|
extern void __fini __P((void)) __asm(".fini");
|
|
#endif
|
|
|
|
void
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__init(base) /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
long base; /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__init()
|
|
#endif
|
|
{
|
|
static int initialized = 0;
|
|
|
|
/*
|
|
* Call global constructors.
|
|
* Arrange to call global destructors at exit.
|
|
*/
|
|
if (!initialized) {
|
|
initialized = 1;
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__ctors(base); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__ctors();
|
|
#endif /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
}
|
|
|
|
}
|
|
|
|
void
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__fini(base) /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
long base; /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__fini()
|
|
#endif /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
{
|
|
/*
|
|
* Call global destructors.
|
|
*/
|
|
#ifdef ARM32_BROKEN_RELOCATIONS /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__dtors(base); /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
#else /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
__dtors();
|
|
#endif /* XXX ARM32_BROKEN_RELOCATIONS */
|
|
}
|