iproute2/genl/static-syms.c

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * This file creates a dummy version of dynamic loading
 * for environments where dynamic linking
 * is not used or available.
 */

#include <string.h>
#include "dlfcn.h"

void *_dlsym(const char *sym)
{
#include "static-syms.h"
	return NULL;
}
SPDX license identifiers For all files in iproute2 which do not have an obvious license identification, mark them with SPDK GPL-2 Signed-off-by: Stephen Hemminger <stephen@networkplumber.org> 2017-11-25 04:21:35 +08:00			`/* SPDX-License-Identifier: GPL-2.0 */`
Fix build when shared libraries are disabled On some platforms, shared libraries are not used. The stub code need some updating to not generate errors. 2013-03-13 23:29:59 +08:00			`/*`
			`* This file creates a dummy version of dynamic loading`
			`* for environments where dynamic linking`
			`* is not used or available.`
			`*/`

support static-only systems The iptables code supports a "no shared libs" mode where it can be used without requiring dlfcn related functionality. This adds similar support to iproute2 so that it can easily be used on systems like nommu Linux (but obviously with a few limitations -- no dynamic plugins). Rather than modify every location that uses dlfcn.h, I hooked the dlfcn.h header with stub functions when shared library support is disabled. Then symbol lookup is done via a local static lookup table (which is generated automatically at build time) so that internal symbols can be found. Signed-off-by: Mike Frysinger <vapier@gentoo.org> 2009-11-06 19:09:22 +08:00			`#include <string.h>`
Fix build when shared libraries are disabled On some platforms, shared libraries are not used. The stub code need some updating to not generate errors. 2013-03-13 23:29:59 +08:00			`#include "dlfcn.h"`

support static-only systems The iptables code supports a "no shared libs" mode where it can be used without requiring dlfcn related functionality. This adds similar support to iproute2 so that it can easily be used on systems like nommu Linux (but obviously with a few limitations -- no dynamic plugins). Rather than modify every location that uses dlfcn.h, I hooked the dlfcn.h header with stub functions when shared library support is disabled. Then symbol lookup is done via a local static lookup table (which is generated automatically at build time) so that internal symbols can be found. Signed-off-by: Mike Frysinger <vapier@gentoo.org> 2009-11-06 19:09:22 +08:00			`void _dlsym(const char sym)`
			`{`
			`#include "static-syms.h"`
			`return NULL;`
			`}`