Easing in binfmt support

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@1892 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 0 insertions, 224 deletions

diff --git a/nuttx/binfmt/libnxflat/libnxflat_stack.c b/nuttx/binfmt/libnxflat/libnxflat_stack.c
deleted file mode 100644
index 082a2e05e..000000000
--- a/nuttx/binfmt/libnxflat/libnxflat_stack.c
+++ /dev/null
@@ -1,224 +0,0 @@
-/****************************************************************************
- * libnxflat/lib/nxflat_stack.c
- *
- *   Copyright (C) 2009 Gregory Nutt. All rights reserved.
- *   Author: Gregory Nutt <spudmonkey@racsa.co.cr>
- *
- * 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.
- * 3. Neither the name NuttX nor the names of its contributors may be
- *    used to endorse or promote products derived from this software
- *    without specific prior written permission.
- *
- * 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.
- *
- ****************************************************************************/
-
-/****************************************************************************
- * Included Files
- ****************************************************************************/
-
-#include <nuttx/config.h>
-#include <sys/types.h>
-#include <debug.h>
-#include <errno.h>
-#include <nuttx/nxflat.h>
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nxflat_adjuststacksize
- ****************************************************************************/
-
-void nxflat_adjuststacksize(struct nxflat_loadinfo_s *load_info,
-			     int argc, int envc, int system_usage)
-{
-  uint32 total_usage = system_usage;
-
-  /* For argc, we will store the array (argc elements), the argc
-   * value itself, plus a null pointer.
-   */
-
-  total_usage += (argc + 2) * sizeof(uint32);
-
-  /* For envc, we will store the array (envc elements) plus a null
-   * pointer.
-   */
-
-  total_usage += (envc + 1) * sizeof(uint32);
-
-  /* And we will store six additional words described the memory
-   * layout.
-   */
-
-  total_usage += 6 * sizeof(uint32);
-
-  /* Add this to the previously determined stack size */
-
-  load_info->stack_size += total_usage;
-}
-
-/****************************************************************************
- * Name: nxflat_initstack
- *
- * Description:
- *   When we enter the NXFLAT_ loader, it will expect to see a stack frame
- *   like the following.  NOTE: This logic assumes a push down stack
- *   (i.e., we decrement the stack pointer to go from the "BOTTOM" to
- *   the "TOP").
- *
- *
- *    TOP->argc                Argument count    (integer)
- *         argv[0...(argc-1)]  Program arguments (pointers)
- *         NULL                Marks end of arguments
- *         env[0...N]          Environment variables (pointers)
- *         NULL                Marks end of environment variables
- *         loader ispace       Address of loader ISpace (NXFLAT_ header)
- *         loader dspace       Address of loader DSpace
- *         loader dspace size  Size of the allocated loader DSpace
- *         program ispace      Address of program ISpace (NXFLAT_ header)
- *         program dspace      Address of program DSpace
- * BOTTOM->program dspace size Size of the allocated program DSpace
- *
- ****************************************************************************/
-
-uint32 nxflat_initstack(struct nxflat_loadinfo_s *prog_load_info,
-		       struct nxflat_loadinfo_s *lib_load_info,
-		       int argc, int envc, char *p)
-{
-  uint32 *argv;
-  uint32 *envp;
-  uint32 *sp;
-  char       dummy;
-
-  /* p points to the beginning of the array of arguments;
-   * sp points to the "bottom" of a push down stack.
-   */
-
-  sp = (uint32*)((-(uint32)sizeof(char*))&(uint32) p);
-
-  /* Place program information on the stack */
-
-  if (prog_load_info)
-    {
-      *sp-- = (uint32)prog_load_info->dspace_size;
-      *sp-- = (uint32)prog_load_info->dspace;
-      *sp-- = (uint32)prog_load_info->ispace;
-    }
-  else
-    {
-      dbg("No program load info provided\n");
-      return -EINVAL;
-    }
-
-  /* Place loader information on the stack */
-
-  if (lib_load_info)
-    {
-      *sp-- = (uint32)lib_load_info->dspace_size;
-      *sp-- = (uint32)lib_load_info->dspace;
-      *sp-- = (uint32)lib_load_info->ispace;
-    }
-  else
-    {
-      *sp-- = (uint32)0;
-      *sp-- = (uint32)0;
-      *sp-- = (uint32)0;
-    }
-
-  /* Allocate space on the stack for the envp array contents
-   * (including space for a null terminator).
-   */
-
-  sp  -= envc+1;
-  envp = sp;
-
-  /* Allocate space on the stack for the argv array contents
-   * (including space for a null terminator).
-   */
-
-  sp  -= argc+1;
-  argv = sp;
-
-  /* Put argc on the stack. sp now points to the "top" of the
-   * stack as it will be received by the new task.
-   */
-
-  *sp-- = (uint32)argc;
-
-  /* Copy argv pointers into the stack frame (terminated with
-   * a null pointer).
-   */
-
-  prog_load_info->arg_start = (uint32)p;
-  while (argc-->0)
-    {
-      /* Put the address of the beginning of the string */
-
-      *argv++ = (uint32)p;
-
-      /* Search for the end of the string */
-
-      do
-	{
-	  dummy = *p++;
-	}
-      while (dummy);
-    }
-  *argv = (uint32)NULL,argv;
-
-  /* Copy envp pointers into the stack frame (terminated with
-   * a null pointer).
-   */
-
-  prog_load_info->env_start = (uint32)p;
-  while (envc-->0)
-    {
-      /* Put the address of the beginning of the string */
-
-      *envp++ = (uint32)p;
-
-      /* Search for the end of the string */
-
-      do
-	{
-	  dummy = *p++;
-	}
-      while (dummy);
-    }
-  *envp = (uint32)NULL;
-
-  prog_load_info->env_end = (uint32)p;
-
-  return (uint32)sp;
-}
-