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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2023 On-Line Applications Research Corporation (OAR).
*
* 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.
*/
#include <errno.h>
#include <stdio.h>
#include "tmacros.h"
#include <pthread.h>
#include <dlfcn.h>
#include "dl-load.h"
#include <rtems/rtl/rtl-shell.h>
#include <rtems/rtl/rtl-trace.h>
#define TEST_TRACE 0
#if TEST_TRACE
#define SHOW_GLOBAL_SYMS 1
#if SHOW_GLOBAL_SYMS
#define TRACE_GLOBAL_SYMBOL RTEMS_RTL_TRACE_GLOBAL_SYM
#else
#define TRACE_GLOBAL_SYMBOL 0
#endif
#define DEBUG_TRACE (RTEMS_RTL_TRACE_DETAIL | \
RTEMS_RTL_TRACE_WARNING | \
RTEMS_RTL_TRACE_LOAD | \
RTEMS_RTL_TRACE_UNLOAD | \
TRACE_GLOBAL_SYMBOL | \
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 DL_DEBUG_TRACE DEBUG_TRACE /* RTEMS_RTL_TRACE_ALL */
#define DL_RTL_CMDS 1
#else
#define DL_DEBUG_TRACE 0
#define DL_RTL_CMDS 0
#endif
static void dl_load_dump (void)
{
#if DL_RTL_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
}
typedef int (*int_call_t)(void);
typedef int* (*ptr_call_t)(void);
void* get_errno_ptr(void);
int get_errno(void);
int_call_t int_call;
ptr_call_t ptr_call;
static int perform_test(void)
{
int int_call_ret;
int* ptr_call_ret;
ptr_call_ret = ptr_call ();
if (ptr_call_ret != get_errno_ptr())
{
printf("dlsym ptr_call failed: ret value bad\n");
return 1;
}
errno = 12345;
int_call_ret = int_call ();
if (int_call_ret != get_errno())
{
printf("dlsym int_call failed: ret value bad\n");
return 1;
}
errno = 0;
return 0;
}
static void *secondary_thread(void *arg)
{
printf("Running test on secondary thread\n");
if (perform_test()) {
printf("Test failed on secondary task\n");
return (void *) 1;
}
return NULL;
}
static void start_secondary(void)
{
/* Run the test on a secondary thread */
pthread_t threadId;
int status;
void *ret;
status = pthread_create( &threadId, NULL, secondary_thread, NULL );
rtems_test_assert( !status );
/* Wait on thread to exit */
status = pthread_join(threadId, &ret);
rtems_test_assert( !status );
rtems_test_assert( ret == NULL );
}
int dl_load_test(void)
{
void* handle;
int unresolved;
char* message = "loaded";
#if DL_DEBUG_TRACE
rtems_rtl_trace_set_mask (DL_DEBUG_TRACE);
#endif
printf("load: /dl11-o1.o\n");
handle = dlopen ("/dl11-o1.o", RTLD_NOW | RTLD_GLOBAL);
if (!handle)
{
printf("dlopen failed: %s\n", dlerror());
return 1;
}
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);
dl_load_dump ();
ptr_call = dlsym (handle, "get_errno_ptr");
if (ptr_call == NULL)
{
printf("dlsym failed: symbol get_errno_ptr not found\n");
return 1;
}
int_call = dlsym (handle, "get_errno_val");
if (int_call == NULL)
{
printf("dlsym failed: symbol get_errno_val not found\n");
return 1;
}
/* Run the test on the init thread */
printf("Running test on init task\n");
if (perform_test()) {
return 1;
}
start_secondary();
if (dlclose (handle) < 0)
{
printf("dlclose failed: %s\n", dlerror());
return 1;
}
printf ("handle: %p closed\n", handle);
return 0;
}
/*
* Disasseble these to see how the platform accesses TLS
*/
void* get_errno_ptr(void)
{
return &errno;
}
int get_errno(void)
{
return errno;
}
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