diff options
| -rw-r--r-- | lib/libc/Makefile.inc | 3 | ||||
| -rw-r--r-- | lib/libc/dlfcn/Makefile.inc | 10 | ||||
| -rw-r--r-- | lib/libc/dlfcn/dlfcn_stubs.c | 84 |
3 files changed, 96 insertions, 1 deletions
diff --git a/lib/libc/Makefile.inc b/lib/libc/Makefile.inc index c9f6ddef254..27b8e06d65e 100644 --- a/lib/libc/Makefile.inc +++ b/lib/libc/Makefile.inc @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile.inc,v 1.4 2001/03/02 13:27:05 espie Exp $ +# $OpenBSD: Makefile.inc,v 1.5 2001/11/20 01:09:38 pvalchev Exp $ # # This file contains make rules that are shared by libc and libc_r. # @@ -26,6 +26,7 @@ AINC+= -nostdinc -idirafter ${DESTDIR}/usr/include .endif .include "${LIBCSRCDIR}/db/Makefile.inc" +.include "${LIBCSRCDIR}/dlfcn/Makefile.inc" .include "${LIBCSRCDIR}/compat-43/Makefile.inc" .include "${LIBCSRCDIR}/gen/Makefile.inc" .include "${LIBCSRCDIR}/crypt/Makefile.inc" diff --git a/lib/libc/dlfcn/Makefile.inc b/lib/libc/dlfcn/Makefile.inc new file mode 100644 index 00000000000..2a3224e28b5 --- /dev/null +++ b/lib/libc/dlfcn/Makefile.inc @@ -0,0 +1,10 @@ +# $OpenBSD: Makefile.inc,v 1.1 2001/11/20 01:09:38 pvalchev Exp $ + +.PATH: ${LIBCSRCDIR}/dlfcn + +.include <bsd.own.mk> + +.if ${ELF_TOOLCHAIN:L} == "yes" +SRCS+= dlfcn_stubs.c +CPPFLAGS+= -I${.CURDIR}/dlfcn +.endif diff --git a/lib/libc/dlfcn/dlfcn_stubs.c b/lib/libc/dlfcn/dlfcn_stubs.c new file mode 100644 index 00000000000..2db7e4b012e --- /dev/null +++ b/lib/libc/dlfcn/dlfcn_stubs.c @@ -0,0 +1,84 @@ +/* $OpenBSD: dlfcn_stubs.c,v 1.1 2001/11/20 01:09:38 pvalchev Exp $ */ + +/* + * Copyright (c) 1998 Per Fogelstrom, Opsycon AB + * + * 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 under OpenBSD by + * Per Fogelstrom, Opsycon AB, Sweden. + * 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. + * + */ + +/* + * All functions here are just stubs that will be overridden + * by the real functions in ld.so when dynamic loading is + * performed at exec. The symbols here are provided as a link + * helper so we can link a program using the dl functions + * without getting any unresolved references. + */ + +void *dlopen(const char *libname, int how) __attribute__((weak)); +int dlclose(void *handle) __attribute__((weak)); +void *dlsym(void *handle, const char *name) __attribute__((weak)); +int dlctl(void *handle, int command, void *data) __attribute__((weak)); +const char * dlerror() __attribute__((weak)); + +#include <stdio.h> + +void * +dlopen(const char *libname, int how) +{ + printf("Wrong dl symbols!\n"); + return NULL; +} + +int +dlclose(void *handle) +{ + printf("Wrong dl symbols!\n"); + return 0; +} + +void * +dlsym(void *handle, const char *name) +{ + printf("Wrong dl symbols!\n"); + return NULL; +} + +int +dlctl(void *handle, int command, void *data) +{ + printf("Wrong dl symbols!\n"); + return 0; +} + +const char * +dlerror() +{ + printf("Wrong dl symbols!\n"); + return "Wrong dl symbols!\n"; +} |