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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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