diff options
Diffstat (limited to 'nuttx/binfmt/libnxflat/libnxflat_addrenv.c')
-rw-r--r-- | nuttx/binfmt/libnxflat/libnxflat_addrenv.c | 235 |
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; - } -} |