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/*-
*
* Copyright (C) 2023 NetApp, Inc.
*
* SPDX-License-Identifier: BSD-2-Clause
*
*/
#include <dlfcn.h>
#include <atf-c.h>
int get_value(void);
void set_value(int);
#define APP_VALUE 5
#define LIB_VALUE 20
ATF_TC_WITHOUT_HEAD(deepbind_simple);
ATF_TC_BODY(deepbind_simple, tc)
{
void *hdl;
void (*proxy_set_value)(int);
int (*proxy_get_value)(void);
int app_value, lib_value;
set_value(APP_VALUE);
/*
* libdeep has a dependency on libval2.so, which is a rebuild of
* libval.so that provides get_value() and set_value() for both us and
* the lib. The lib's get_value() and set_value() should bind to the
* versions in libval2 instead of libval with RTLD_DEEPBIND.
*/
hdl = dlopen("$ORIGIN/libdeep.so", RTLD_LAZY | RTLD_DEEPBIND);
ATF_REQUIRE(hdl != NULL);
proxy_set_value = dlsym(hdl, "proxy_set_value");
ATF_REQUIRE(proxy_set_value != NULL);
proxy_get_value = dlsym(hdl, "proxy_get_value");
ATF_REQUIRE(proxy_get_value != NULL);
(*proxy_set_value)(LIB_VALUE);
lib_value = (*proxy_get_value)();
app_value = get_value();
/*
* In the initial implementation or if libdeep.so is *not* linked
* against its own libval2, then these both return the later set
* LIB_VALUE (20) as they bind to the symbol provided by libval and
* use its .bss val.
*/
ATF_REQUIRE_INTEQ(lib_value, LIB_VALUE);
ATF_REQUIRE_INTEQ(app_value, APP_VALUE);
}
ATF_TP_ADD_TCS(tp)
{
ATF_TP_ADD_TC(tp, deepbind_simple);
return atf_no_error();
}
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