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Diffstat (limited to 'nuttx/binfmt/libnxflat/libnxflat_addrenv.c')
-rw-r--r--nuttx/binfmt/libnxflat/libnxflat_addrenv.c235
1 files changed, 0 insertions, 235 deletions
diff --git a/nuttx/binfmt/libnxflat/libnxflat_addrenv.c b/nuttx/binfmt/libnxflat/libnxflat_addrenv.c
deleted file mode 100644
index 2d9255b28..000000000
--- a/nuttx/binfmt/libnxflat/libnxflat_addrenv.c
+++ /dev/null
@@ -1,235 +0,0 @@
-/****************************************************************************
- * binfmt/libnxflat/libnxflat_addrenv.c
- *
- * Copyright (C) 2012 Gregory Nutt. All rights reserved.
- * Author: Gregory Nutt <gnutt@nuttx.org>
- *
- * 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 <string.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/arch.h>
-#include <nuttx/kmalloc.h>
-
-#include "libnxflat.h"
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Constant Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: nxflat_addrenv_alloc
- *
- * Description:
- * Allocate memory for the ELF image (elfalloc). If CONFIG_ADDRENV=n,
- * elfalloc will be allocated using kzalloc(). If CONFIG_ADDRENV-y, then
- * elfalloc will be allocated using up_addrenv_create(). In either case,
- * there will be a unique instance of elfalloc (and stack) for each
- * instance of a process.
- *
- * Input Parameters:
- * loadinfo - Load state information
- * envsize - The size (in bytes) of the address environment needed for the
- * ELF image.
- *
- * Returned Value:
- * Zero (OK) on success; a negated errno value on failure.
- *
- ****************************************************************************/
-
-int nxflat_addrenv_alloc(FAR struct nxflat_loadinfo_s *loadinfo, size_t envsize)
-{
- FAR struct dspace_s *dspace;
-#ifdef CONFIG_ADDRENV
- FAR void *vaddr;
- hw_addrenv_t oldenv;
- int ret;
-#endif
-
- DEBUGASSERT(!loadinfo->dspace);
-
- /* Allocate the struct dspace_s container for the D-Space allocation */
-
- dspace = (FAR struct dspace_s *)kmalloc(sizeof(struct dspace_s));
- if (dspace == 0)
- {
- bdbg("ERROR: Failed to allocate DSpace\n");
- return -ENOMEM;
- }
-
-#ifdef CONFIG_ADDRENV
- /* Create a D-Space address environment for the new NXFLAT task */
-
- ret = up_addrenv_create(envsize, &loadinfo->addrenv);
- if (ret < 0)
- {
- bdbg("ERROR: up_addrenv_create failed: %d\n", ret);
- goto errout_with_dspace;
- }
-
- /* Get the virtual address associated with the start of the address
- * environment. This is the base address that we will need to use to
- * access the D-Space region (but only if the address environment has been
- * selected.
- */
-
- ret = up_addrenv_vaddr(loadinfo->addrenv, &vaddr);
- if (ret < 0)
- {
- bdbg("ERROR: up_addrenv_vaddr failed: %d\n", ret);
- goto errout_with_addrenv;
- }
-
- /* Clear all of the allocated D-Space memory. We have to temporarily
- * selected the D-Space address environment to do this.
- */
-
- ret = up_addrenv_select(loadinfo->addrenv, &oldenv);
- if (ret < 0)
- {
- bdbg("ERROR: up_addrenv_select failed: %d\n", ret);
- goto errout_with_addrenv;
- }
-
- memset(vaddr, 0, envsize);
-
- ret = up_addrenv_restore(oldenv);
- if (ret < 0)
- {
- bdbg("ERROR: up_addrenv_restore failed: %d\n", ret);
- goto errout_with_addrenv;
- }
-
- /* Success... save the fruits of our labor */
-
- loadinfo->dspace = dspace;
- dspace->crefs = 1;
- dspace->region = (FAR uint8_t *)vaddr;
- return OK;
-
-errout_with_addrenv:
- (void)up_addrenv_destroy(loadinfo->addrenv);
- loadinfo->addrenv = 0;
-
-errout_with_dspace:
- kfree(dspace);
- return ret;
-#else
- /* Allocate (and zero) memory to hold the ELF image */
-
- dspace->region = (FAR uint8_t *)kzalloc(envsize);
- if (!dspace->region)
- {
- kfree(dspace);
- return -ENOMEM;
- }
-
- loadinfo->dspace = dspace;
- dspace->crefs = 1;
- return OK;
-#endif
-}
-
-/****************************************************************************
- * Name: nxflat_addrenv_free
- *
- * Description:
- * Release the address environment previously created by
- * nxflat_addrenv_create(). This function is called only under certain
- * error conditions after the the module has been loaded but not yet
- * started. After the module has been started, the address environment
- * will automatically be freed when the module exits.
- *
- * Input Parameters:
- * loadinfo - Load state information
- *
- * Returned Value:
- * None.
- *
- ****************************************************************************/
-
-void nxflat_addrenv_free(FAR struct nxflat_loadinfo_s *loadinfo)
-{
- FAR struct dspace_s *dspace;
-#ifdef CONFIG_ADDRENV
- int ret;
-#endif
-
- DEBUGASSERT(loadinfo);
- dspace = loadinfo->dspace;
-
- if (dspace)
- {
-#ifdef CONFIG_ADDRENV
- /* Destroy the address environment */
-
- ret = up_addrenv_destroy(loadinfo->addrenv);
- if (ret < 0)
- {
- bdbg("ERROR: up_addrenv_destroy failed: %d\n", ret);
- }
-
- loadinfo->addrenv = 0;
-#else
- /* Free the allocated D-Space region */
-
- if (dspace->region)
- {
- kfree(dspace->region);
- }
-#endif
-
- /* Now destroy the D-Space container */
-
- DEBUGASSERT(dspace->crefs == 1);
- kfree(dspace);
- loadinfo->dspace = NULL;
- }
-}
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