diff options
| -rw-r--r-- | lib/csu/alpha/Makefile | 7 | ||||
| -rw-r--r-- | lib/csu/alpha/crtbegin.c | 127 |
2 files changed, 131 insertions, 3 deletions
diff --git a/lib/csu/alpha/Makefile b/lib/csu/alpha/Makefile index f1aebe8ee1a..2a8a144c51e 100644 --- a/lib/csu/alpha/Makefile +++ b/lib/csu/alpha/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.14 2004/01/08 14:59:15 drahn Exp $ +# $OpenBSD: Makefile,v 1.15 2004/10/21 19:57:42 kettenis Exp $ # $NetBSD: Makefile,v 1.6 1996/10/18 05:27:38 thorpej Exp $ CFLAGS+= -DLIBC_SCCS -DELFSIZE=64 @@ -25,9 +25,10 @@ gcrt0.o: crt0.c @${LD} -x -r -o ${.TARGET} ${.TARGET}.o @rm -f ${.TARGET}.o +# XXX temporary hack until __register_frame_info issue is sorted out. crtbegin.o: crtbegin.c - @echo ${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET} - @${COMPILE.c} ${ELFDIR}/crtbegin.c -o ${.TARGET}.o + @echo ${COMPILE.c} ${.CURDIR}/crtbegin.c -o ${.TARGET} + @${COMPILE.c} ${.CURDIR}/crtbegin.c -o ${.TARGET}.o @${LD} -x -r -o ${.TARGET} ${.TARGET}.o @rm -f ${.TARGET}.o diff --git a/lib/csu/alpha/crtbegin.c b/lib/csu/alpha/crtbegin.c new file mode 100644 index 00000000000..a98d25c1ed4 --- /dev/null +++ b/lib/csu/alpha/crtbegin.c @@ -0,0 +1,127 @@ +/* $OpenBSD: crtbegin.c,v 1.3 2004/10/21 19:57:42 kettenis Exp $ */ +/* $NetBSD: crtbegin.c,v 1.1 1996/09/12 16:59:03 cgd Exp $ */ + +/* + * Copyright (c) 1993 Paul Kranenburg + * 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. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * This product includes software developed by Paul Kranenburg. + * 4. The name of the author may not be used to endorse or promote products + * derived from this software without specific prior written permission + * + * 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. + */ + +/* + * 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> + +#include "md_init.h" +#include "os-note-elf.h" +#include "extern.h" + +static const char __EH_FRAME_BEGIN__[] + __attribute__((section(".eh_frame"), aligned(4))) = { }; + +static const init_f __CTOR_LIST__[1] + __attribute__((section(".ctors"))) = { (void *)-1 }; /* XXX */ +static const init_f __DTOR_LIST__[1] + __attribute__((section(".dtors"))) = { (void *)-1 }; /* XXX */ + +static void __dtors(void); +static void __ctors(void); + +static void +__dtors() +{ + unsigned long i = (unsigned long) __DTOR_LIST__[0]; + const init_f *p; + + if (i == -1) { + for (i = 1; __DTOR_LIST__[i] != NULL; i++) + ; + i--; + } + p = __DTOR_LIST__ + i; + while (i--) + (**p--)(); +} + +static void +__ctors() +{ + const init_f *p = __CTOR_LIST__ + 1; + + while (*p) + (**p++)(); +} + +void __init(void); +void __fini(void); +static void __do_init(void); +static void __do_fini(void); + +MD_SECTION_PROLOGUE(".init", __init); + +MD_SECTION_PROLOGUE(".fini", __fini); + +MD_SECT_CALL_FUNC(".init", __do_init); +MD_SECT_CALL_FUNC(".fini", __do_fini); + + +void +__do_init() +{ + static int initialized = 0; + + /* + * Call global constructors. + * Arrange to call global destructors at exit. + */ + if (!initialized) { + initialized = 1; + + (__ctors)(); + + atexit(__fini); + } +} + +void +__do_fini() +{ + static int finalized = 0; + + if (!finalized) { + finalized = 1; + /* + * Call global destructors. + */ + (__dtors)(); + } +} |