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/*
* Copyright (c) 2014 Chris Johns <chrisj@rtems.org>. All rights reserved.
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#include <stdio.h>
#include <dlfcn.h>
#include "dl-load.h"
typedef int (*call_t)(int argc, const char* argv[]);
static const char* call_args[] = { "1", "2", "3", "4" };
static void* dl_load_obj(const char* name)
{
void* handle;
int unresolved;
char* message = "loaded";
printf("load: %s\n", name);
handle = dlopen (name, RTLD_NOW | RTLD_GLOBAL);
if (!handle)
{
printf("dlopen failed: %s\n", dlerror());
return NULL;
}
if (dlinfo (handle, RTLD_DI_UNRESOLVED, &unresolved) < 0)
message = "dlinfo error checking unresolved status";
else if (unresolved)
message = "has unresolved externals";
printf ("handle: %p %s\n", handle, message);
return handle;
}
int dl_load_test(void)
{
void* o1;
void* o2;
call_t call;
int call_ret;
int ret;
o1 = dl_load_obj("/dl-o1.o");
if (!o1)
return 1;
o2 = dl_load_obj("/dl-o2.o");
if (!o1)
return 1;
#if 0
{
char* list[] = { "rtl", "list", NULL };
rtems_rtl_shell_command (2, list);
char* sym[] = { "rtl", "sym", NULL };
rtems_rtl_shell_command (2, sym);
}
#endif
call = dlsym (o1, "rtems_main");
if (call == NULL)
{
printf("dlsym failed: symbol not found\n");
return 1;
}
call_ret = call (4, call_args);
if (call_ret != 4)
{
printf("dlsym call failed: ret value bad\n");
return 1;
}
ret = 0;
if (dlclose (o1) < 0)
{
printf("dlclose o1 failed: %s\n", dlerror());
ret = 1;
}
printf ("handle: %p closed\n", o1);
if (dlclose (o2) < 0)
{
printf("dlclose o1 failed: %s\n", dlerror());
ret = 1;
}
printf ("handle: %p closed\n", o2);
return ret;
}
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