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/*
* Copyright 2018 Chris Johns <chrisj@rtems.org>
*
* 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 AUTHOR 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 AUTHOR 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.
*/
#include <sys/param.h>
#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <string.h>
#include <stdio.h>
#include <dlfcn.h>
#include <rtems.h>
#include <rtems/rtl/rtl-shell.h>
#include <rtems/rtl/rtl-trace.h>
#include <rtems/untar.h>
#include "libbsd-dl-rootfs-tar.h"
#define EXAMPLE_NAME "LIBBSD LIBDL 1"
#define ARCHIVE_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_ALLOCATOR | \
RTEMS_RTL_TRACE_UNRESOLVED | \
RTEMS_RTL_TRACE_ARCHIVES | \
RTEMS_RTL_TRACE_DEPENDENCY)
#define EXAMPLE_DEBUG_TRACE ARCHIVE_TRACE
#define TARFILE_START libbsd_dl_rootfs_tar
#define TARFILE_SIZE libbsd_dl_rootfs_tar_size
typedef int (*call_sig)(void);
static void
dl_load_dump (void)
{
#if LIBDL01_CMDS
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 void
example_fatal_error (void)
{
rtems_status_code sc = rtems_task_wake_after( 3 );
assert(sc == RTEMS_SUCCESSFUL);
assert( 0 );
}
rtems_task Init(
rtems_task_argument ignored
)
{
const char* name = "dl_libbsd.o";
void* handle;
int unresolved = 0;
call_sig call;
int te;
puts( "\n\nExample: " EXAMPLE_NAME );
te = Untar_FromMemory((void *)TARFILE_START, (size_t)TARFILE_SIZE);
if (te != 0)
{
printf("untar failed: %d\n", te);
example_fatal_error();
}
#if EXAMPLE_DEBUG_TRACE
rtems_rtl_trace_set_mask (EXAMPLE_DEBUG_TRACE);
#endif
printf("load: %s\n", name);
handle = dlopen (name, RTLD_NOW | RTLD_GLOBAL);
if (handle == NULL)
{
printf("error: loading %s failed: %s\n", name, dlerror ());
example_fatal_error ();
}
printf ("handle: %p loaded\n", handle);
if (dlinfo (handle, RTLD_DI_UNRESOLVED, &unresolved) != 0)
{
printf ("error: cannot get module's unresolved status\n");
example_fatal_error ();
}
printf ("unresolved: %p: %s \n", handle, unresolved == 0 ? "resolved" : "UNRESOLVED");
if (unresolved != 0)
{
printf ("error: module has unresolved externals\n");
example_fatal_error ();
}
call = dlsym (handle, "rtems_main");
if (call == NULL)
{
printf ("error: cannot find symbol: rtems_main\n");
example_fatal_error ();
}
call ();
if (dlclose (handle) != 0)
{
printf ("error: unloading %s failed: %d\n", name, dlerror ());
example_fatal_error ();
}
}
/*
* Configure RTEMS.
*/
#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_STUB_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_ZERO_DRIVER
#define CONFIGURE_APPLICATION_NEEDS_LIBBLOCK
#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 32
#define CONFIGURE_MAXIMUM_USER_EXTENSIONS 1
#define CONFIGURE_UNLIMITED_ALLOCATION_SIZE 32
#define CONFIGURE_UNLIMITED_OBJECTS
#define CONFIGURE_UNIFIED_WORK_AREAS
#define CONFIGURE_STACK_CHECKER_ENABLED
#define CONFIGURE_BDBUF_BUFFER_MAX_SIZE (64 * 1024)
#define CONFIGURE_BDBUF_MAX_READ_AHEAD_BLOCKS 4
#define CONFIGURE_BDBUF_CACHE_MEMORY_SIZE (1 * 1024 * 1024)
#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
#define CONFIGURE_INIT_TASK_STACK_SIZE (32 * 1024)
#define CONFIGURE_INIT_TASK_INITIAL_MODES RTEMS_DEFAULT_MODES
#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
#define CONFIGURE_INIT
#include <rtems/confdefs.h>
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