NSH will now run files from the file system; Add logic to unload and clean-up after running a task from a file system; Extensions to builtin apps from Mike Smith

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5529 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 38 insertions, 0 deletions

diff --git a/apps/examples/nsh/nsh_main.c b/apps/examples/nsh/nsh_main.c
index 97792cb2a..d9bfc2018 100644
--- a/apps/examples/nsh/nsh_main.c
+++ b/apps/examples/nsh/nsh_main.c
@@ -46,6 +46,12 @@
 #include <errno.h>
 
 #include <nuttx/arch.h>
+#if defined(CONFIG_FS_BINFS) && (CONFIG_BUILTIN)
+#include <nuttx/binfmt/builtin.h>
+#endif
+#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
+#include <nuttx/binfmt/symtab.h>
+#endif
 
 #include <apps/nsh.h>
 
@@ -75,6 +81,21 @@
  * Public Data
  ****************************************************************************/
 
+/* If posix_spawn() is enabled as required for CONFIG_NSH_FILE_APPS, then
+ * a symbol table is needed by the internals of posix_spawn().  The symbol
+ * table is needed to support ELF and NXFLAT binaries to dynamically link to
+ * the base code.  However, if only the BINFS file system is supported, then
+ * no Makefile is needed.
+ *
+ * This is a kludge to plug the missing file system in the case where BINFS
+ * is used.  REVISIT:  This will, of course, be in the way if you want to
+ * support ELF or NXFLAT binaries!
+ */
+
+#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
+const struct symtab_s CONFIG_EXECFUNCS_SYMTAB[1];
+#endif
+
 /****************************************************************************
  * Private Functions
  ****************************************************************************/
@@ -98,6 +119,23 @@ int nsh_main(int argc, char *argv[])
   up_cxxinitialize();
 #endif
 
+  /* Make sure that we are using our symbol take */
+
+#if defined(CONFIG_LIBC_EXECFUNCS) && defined(CONFIG_EXECFUNCS_SYMTAB)
+  exec_setsymtab(CONFIG_EXECFUNCS_SYMTAB, 0);
+#endif
+
+  /* Register the BINFS file system */
+
+#if defined(CONFIG_FS_BINFS) && (CONFIG_BUILTIN)
+  ret = builtin_initialize();
+  if (ret < 0)
+    {
+     fprintf(stderr, "ERROR: builtin_initialize failed: %d\n", ret);
+     exitval = 1;
+   }
+#endif
+
   /* Initialize the NSH library */
 
   nsh_initialize();