cpukit: Add libdl with the Runtime Loader (RTL) code.

This is a merge of the RTL project.

testsuites/libtests/Makefile.am

@@ -14,7 +14,7 @@ _SUBDIRS += block14
 _SUBDIRS += block13
 _SUBDIRS += rbheap01
 _SUBDIRS += flashdisk01
-_SUBDIRS += capture01 
+_SUBDIRS += capture01
 
 _SUBDIRS += bspcmdline01 cpuuse devfs01 devfs02 devfs03 devfs04 \
     deviceio01 devnullfatal01 dumpbuf01 gxx01 top\
@@ -36,5 +36,9 @@ _SUBDIRS += ftp01
 _SUBDIRS += syscall01
 endif
 
+if DLTESTS
+_SUBDIRS += dl01
+endif
+
 include $(top_srcdir)/../automake/test-subdirs.am
 include $(top_srcdir)/../automake/local.am

testsuites/libtests/configure.ac

@@ -41,6 +41,29 @@ AM_CONDITIONAL([HAS_COMPLEX],[test "$ac_cv_header_complex_h" = yes])
 AM_CONDITIONAL(NETTESTS,test "$rtems_cv_RTEMS_NETWORKING" = "yes")
 AM_CONDITIONAL(HAS_POSIX,test x"${rtems_cv_RTEMS_POSIX_API}" = x"yes")
 
+# Must match the list in cpukit.
+AC_MSG_CHECKING([whether CPU supports libdl])
+case $RTEMS_CPU in
+  arm | bfin | h8300 | i386 | lm32 | m32r | m68k | mips | \
+  moxie | nios2 | powerpc | sparc | v850)
+   HAVE_LIBDL=yes ;;
+  *)
+   HAVE_LIBDL=no ;;
+esac
+AM_CONDITIONAL(DLTESTS,[test x"$HAVE_LIBDL" = x"yes"])
+AC_MSG_RESULT([$HAVE_LIBDL])
+
+AS_IF([test x"$HAVE_LIBDL" = x"yes"],[
+  AC_CHECK_PROG(RTEMS_LD_CHECK,rtems-ld,yes)
+  if test x"$RTEMS_LD_CHECK" != x"yes" ; then
+    AC_MSG_ERROR([Please install rtems-tools.])
+  fi
+  AC_CHECK_PROG(RTEMS_SYMS_CHECK,rtems-syms,yes)
+  if test x"$RTEMS_SYMS_CHECK" != x"yes" ; then
+    AC_MSG_ERROR([Please install rtems-tools.])
+  fi
+])
+
 # Explicitly list all Makefiles here
 AC_CONFIG_FILES([Makefile
 newlib01/Makefile
@@ -78,6 +101,7 @@ devfs03/Makefile
 devfs04/Makefile
 deviceio01/Makefile
 devnullfatal01/Makefile
+dl01/Makefile
 dumpbuf01/Makefile
 ftp01/Makefile
 gxx01/Makefile

testsuites/libtests/dl01/Makefile.am

@@ -0,0 +1,43 @@
+rtems_tests_PROGRAMS = dl01
+dl01_SOURCES = init.c dl-load.c dl-tar.c dl-tar.h
+
+BUILT_SOURCES = dl-tar.c dl-tar.h
+
+dist_rtems_tests_DATA = dl01.scn dl01.doc
+
+include $(RTEMS_ROOT)/make/custom/@RTEMS_BSP@.cfg
+include $(top_srcdir)/../automake/compile.am
+include $(top_srcdir)/../automake/leaf.am
+
+AM_CPPFLAGS += -I$(top_srcdir)/../support/include
+
+LINK_OBJS = $(dl01_OBJECTS)
+LINK_LIBS = $(dl01_LDLIBS)
+
+dl-o1.o: dl-o1.c
+
+dl.tar: dl-o1.o
+	@rm -f $@
+	$(PAX) -w -f $@ $<
+
+dl-tar.c: dl.tar
+	$(BIN2C) -C $< $@
+CLEANFILES += dl-tar.c
+
+dl-tar.h: dl.tar
+	$(BIN2C) -H $< $@
+CLEANFILES += dl-tar.h
+
+dl01.pre$(EXEEXT): $(dl01_OBJECTS) $(dl01_DEPENDENCIES)
+	@rm -f dl01.pre$(EXEEXT)
+	$(make-exe)
+
+dl-sym.o: dl01.pre$(EXEEXT)
+	rtems-syms -e -c "$(CFLAGS)" -o $@ $<
+
+dl01$(EXEEXT):  $(dl01_OBJECTS) $(dl01_DEPENDENCIES) dl-sym.o
+	@rm -f dl01$(EXEEXT)
+	$(LINK.c) $(CPU_CFLAGS) $(AM_CFLAGS) $(AM_LDFLAGS) \
+		    -o $(basename $@)$(EXEEXT) $(LINK_OBJS) dl-sym.o $(LINK_LIBS)
+
+include $(top_srcdir)/../automake/local.am

testsuites/libtests/dl01/dl-load.c

@@ -0,0 +1,77 @@
+/*
+ * Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.  All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <stdio.h>
+
+#include <dlfcn.h>
+
+#include "dl-load.h"
+
+typedef int (*call_t)(int argc, char* argv[]);
+
+
+static const char* call_1[] = { "Line 1", "Line 2" };
+static const char* call_2[] = { "Call 2, line 1",
+                                "Call 2, line 2",
+                                "Call 2, line 3" };
+
+int dl_load_test(void)
+{
+  void*  handle;
+  call_t call;
+  int    call_ret;
+  int    unresolved;
+  char*  message = "loaded";
+
+  printf("load: /dl-o1.o\n");
+
+  handle = dlopen ("/dl-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);
+
+  call = dlsym (handle, "rtems_main");
+  if (call == NULL)
+  {
+    printf("dlsym failed: symbol not found\n");
+    return 1;
+  }
+
+  call_ret = call (2, call_1);
+  if (call_ret != 2)
+  {
+    printf("dlsym call failed: ret value bad\n");
+    return 1;
+  }
+
+  call_ret = call (3, call_2);
+  if (call_ret != 3)
+  {
+    printf("dlsym call failed: ret value bad\n");
+    return 1;
+  }
+
+  if (dlclose (handle) < 0)
+  {
+    printf("dlclose failed: %s\n", dlerror());
+    return 1;
+  }
+
+  printf ("handle: %p closed\n", handle);
+
+  return 0;
+}

testsuites/libtests/dl01/dl-load.h

@@ -0,0 +1,14 @@
+/*
+ * Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.  All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#if !defined(_DL_LOAD_H_)
+#define _DL_LOAD_H_
+
+int dl_load_test(void);
+
+#endif

testsuites/libtests/dl01/dl-o1.c

@@ -0,0 +1,31 @@
+/*
+ * Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.  All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+
+/**
+ * Hello World as a loadable module.
+ */
+
+#include <stdio.h>
+
+/*
+ * Yes a decl in the source. This is a modules main and I could not find which
+ * header main is defined in.
+ */
+int rtems_main (int argc, char* argv[]);
+
+int rtems_main (int argc, char* argv[])
+{
+  int arg;
+  printf("Loaded module: argc:%d [%s]\n", argc, __FILE__);
+  for (arg = 0; arg < argc; ++arg)
+    printf("  %d: %s\n", arg, argv[arg]);
+  return argc;
+}

testsuites/libtests/dl01/init.c

@@ -0,0 +1,84 @@
+/*
+ * Copyright (c) 2014 Chris Johns <chrisj@rtems.org>.  All rights reserved.
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifdef HAVE_CONFIG_H
+  #include "config.h"
+#endif
+
+#include "tmacros.h"
+
+#include <errno.h>
+#include <string.h>
+#include <stdint.h>
+#include <unistd.h>
+
+#include <rtems/rtl/rtl.h>
+#include <rtems/untar.h>
+
+#include "dl-load.h"
+
+const char rtems_test_name[] = "libdl (RTL) Loader 1";
+
+/* forward declarations to avoid warnings */
+static rtems_task Init(rtems_task_argument argument);
+
+#include "dl-tar.h"
+
+#define TARFILE_START dl_tar
+#define TARFILE_SIZE  dl_tar_size
+
+static int test(void)
+{
+  int ret;
+  ret = dl_load_test();
+  if (ret)
+    rtems_test_exit(ret);
+  return 0;
+}
+
+static void Init(rtems_task_argument arg)
+{
+  int te;
+
+  TEST_BEGIN();
+
+  te = Untar_FromMemory((void *)TARFILE_START, (size_t)TARFILE_SIZE);
+  if (te != 0)
+  {
+    printf("untar failed: %d\n", te);
+    rtems_test_exit(1);
+    exit (1);
+  }
+
+  test();
+
+  TEST_END();
+
+  rtems_test_exit(0);
+}
+
+#define CONFIGURE_APPLICATION_NEEDS_CLOCK_DRIVER
+#define CONFIGURE_APPLICATION_NEEDS_CONSOLE_DRIVER
+
+#define CONFIGURE_USE_IMFS_AS_BASE_FILESYSTEM
+#define CONFIGURE_LIBIO_MAXIMUM_FILE_DESCRIPTORS 4
+
+#define CONFIGURE_MAXIMUM_TASKS 1
+
+#define CONFIGURE_MINIMUM_TASK_STACK_SIZE (8U * 1024U)
+
+#define CONFIGURE_EXTRA_TASK_STACKS (8 * 1024)
+
+#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
+
+#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
+
+#define CONFIGURE_INIT
+
+#include <rtems/confdefs.h>
+