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