/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.
* All rights reserved.
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 COPYRIGHT OWNER OR CONTRIBUTORS 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.
*/
#define TEST_TRACE 0
#if TEST_TRACE
#define DEBUG_TRACE (RTEMS_RTL_TRACE_DETAIL | \
RTEMS_RTL_TRACE_WARNING | \
RTEMS_RTL_TRACE_LOAD | \
RTEMS_RTL_TRACE_UNLOAD | \
RTEMS_RTL_TRACE_SYMBOL | \
RTEMS_RTL_TRACE_RELOC | \
RTEMS_RTL_TRACE_LOAD_SECT | \
RTEMS_RTL_TRACE_ALLOCATOR | \
RTEMS_RTL_TRACE_UNRESOLVED | \
RTEMS_RTL_TRACE_ARCHIVES | \
RTEMS_RTL_TRACE_DEPENDENCY)
/* RTEMS_RTL_TRACE_ALL */
#define DL_DEBUG_TRACE DEBUG_TRACE
#define DL_DEBUG_CMD 1
#else
#define DL_DEBUG_TRACE 0
#define DL_DEBUG_CMD 0
#endif
#include <dlfcn.h>
#include "dl-load.h"
#include <tmacros.h>
#include <rtems/rtl/rtl-shell.h>
#include <rtems/rtl/rtl-trace.h>
typedef int (*call_sig)(void);
static void dl_load_dump (void)
{
#if DL_DEBUG_CMD
char* list[] = { "rtl", "list", NULL };
char* sym[] = { "rtl", "sym", NULL };
printf ("RTL List:\n");
rtems_rtl_shell_command (2, list);
printf ("RTL Sym:\n");
rtems_rtl_shell_command (2, sym);
#endif
}
static bool dl_check_resolved(void* handle, bool has_unresolved)
{
int unresolved = 0;
if (dlinfo (handle, RTLD_DI_UNRESOLVED, &unresolved) == 0)
return 1;
if (has_unresolved)
{
if (unresolved == 0)
{
dl_load_dump();
return false;
}
}
else
{
if (unresolved != 0)
{
dl_load_dump();
return false;
}
}
printf ("handel: %p: no unresolved externals\n", handle);
return true;
}
static void* dl_load_obj(const char* name, bool has_unresolved)
{
void* handle;
printf("load: %s\n", name);
handle = dlopen (name, RTLD_NOW | RTLD_GLOBAL);
if (!handle)
{
printf("dlopen failed: %s\n", dlerror());
return NULL;
}
dl_check_resolved (handle, has_unresolved);
printf ("handle: %p loaded\n", handle);
return handle;
}
int dl_load_test(void)
{
void* o1;
printf ("Test source (link in strstr): %s\n", dl_localise_file (__FILE__));
#if DL_DEBUG_TRACE
rtems_rtl_trace_set_mask (DL_DEBUG_TRACE);
#endif
o1 = dl_load_obj("/dl10-o1.o", false);
if (!o1)
return 1;
if (!dl_check_resolved (o1, false))
return 1;
dl_load_dump ();
return 0;
}
