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Diffstat (limited to 'nuttx/binfmt/libelf/libelf_load.c')
-rw-r--r--nuttx/binfmt/libelf/libelf_load.c288
1 files changed, 0 insertions, 288 deletions
diff --git a/nuttx/binfmt/libelf/libelf_load.c b/nuttx/binfmt/libelf/libelf_load.c
deleted file mode 100644
index 0e4ad9798..000000000
--- a/nuttx/binfmt/libelf/libelf_load.c
+++ /dev/null
@@ -1,288 +0,0 @@
-/****************************************************************************
- * binfmt/libelf/libelf_load.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 <sys/types.h>
-
-#include <stdint.h>
-#include <stdlib.h>
-#include <unistd.h>
-#include <elf32.h>
-#include <assert.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/binfmt/elf.h>
-
-#include "libelf.h"
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-
-#define ELF_ALIGN_MASK ((1 << CONFIG_ELF_ALIGN_LOG2) - 1)
-#define ELF_ALIGNUP(a) (((unsigned long)(a) + ELF_ALIGN_MASK) & ~ELF_ALIGN_MASK)
-#define ELF_ALIGNDOWN(a) ((unsigned long)(a) & ~ELF_ALIGN_MASK)
-
-
-#ifndef MAX
-#define MAX(x,y) ((x) > (y) ? (x) : (y))
-#endif
-
-/****************************************************************************
- * Private Constant Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_elfsize
- *
- * Description:
- * Calculate total memory allocation for the ELF file.
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-static void elf_elfsize(struct elf_loadinfo_s *loadinfo)
-{
- size_t elfsize;
- int i;
-
- /* Accumulate the size each section into memory that is marked SHF_ALLOC */
-
- elfsize = 0;
- for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
- {
- FAR Elf32_Shdr *shdr = &loadinfo->shdr[i];
-
- /* SHF_ALLOC indicates that the section requires memory during
- * execution.
- */
-
- if ((shdr->sh_flags & SHF_ALLOC) != 0)
- {
- elfsize += ELF_ALIGNUP(shdr->sh_size);
- }
- }
-
- /* Save the allocation size */
-
- loadinfo->elfsize = elfsize;
-}
-
-/****************************************************************************
- * Name: elf_loadfile
- *
- * Description:
- * Allocate memory for the file and read the section data into the
- * allocated memory. Section addresses in the shdr[] are updated to point
- * to the corresponding position in the allocated memory.
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-static inline int elf_loadfile(FAR struct elf_loadinfo_s *loadinfo)
-{
- FAR uint8_t *dest;
- int ret;
- int i;
-
- /* Allocate (and zero) memory for the ELF file. */
-
- ret = elf_addrenv_alloc(loadinfo, loadinfo->elfsize);
- if (ret < 0)
- {
- bdbg("ERROR: elf_addrenv_alloc() failed: %d\n", ret);
- return ret;
- }
-
- /* Read each section into memory that is marked SHF_ALLOC + SHT_NOBITS */
-
- bvdbg("Loaded sections:\n");
- dest = (FAR uint8_t*)loadinfo->elfalloc;
-
- for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
- {
- FAR Elf32_Shdr *shdr = &loadinfo->shdr[i];
-
- /* SHF_ALLOC indicates that the section requires memory during
- * execution */
-
- if ((shdr->sh_flags & SHF_ALLOC) == 0)
- {
- continue;
- }
-
- /* SHT_NOBITS indicates that there is no data in the file for the
- * section.
- */
-
- if (shdr->sh_type != SHT_NOBITS)
- {
- /* If CONFIG_ADDRENV=y, then 'dest' lies in a virtual address space
- * that may not be in place now. elf_addrenv_select() will
- * temporarily instantiate that address space.
- */
-
-#ifdef CONFIG_ADDRENV
- ret = elf_addrenv_select(loadinfo);
- if (ret < 0)
- {
- bdbg("ERROR: elf_addrenv_select() failed: %d\n", ret);
- return ret;
- }
-#endif
-
- /* Read the section data from sh_offset to dest */
-
- ret = elf_read(loadinfo, dest, shdr->sh_size, shdr->sh_offset);
- if (ret < 0)
- {
- bdbg("Failed to read section %d: %d\n", i, ret);
- return ret;
- }
-
- /* Restore the original address environment */
-
-#ifdef CONFIG_ADDRENV
- ret = elf_addrenv_restore(loadinfo);
- if (ret < 0)
- {
- bdbg("ERROR: elf_addrenv_restore() failed: %d\n", ret);
- return ret;
- }
-#endif
- }
-
- /* Update sh_addr to point to copy in memory */
-
- bvdbg("%d. %08x->%08x\n", i, (long)shdr->sh_addr, (long)dest);
- shdr->sh_addr = (uintptr_t)dest;
-
- /* Setup the memory pointer for the next time through the loop */
-
- dest += ELF_ALIGNUP(shdr->sh_size);
- }
-
- return OK;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_load
- *
- * Description:
- * Loads the binary into memory, allocating memory, performing relocations
- * and inializing the data and bss segments.
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-int elf_load(FAR struct elf_loadinfo_s *loadinfo)
-{
- int ret;
-
- bvdbg("loadinfo: %p\n", loadinfo);
- DEBUGASSERT(loadinfo && loadinfo->filfd >= 0);
-
- /* Load section headers into memory */
-
- ret = elf_loadshdrs(loadinfo);
- if (ret < 0)
- {
- bdbg("elf_loadshdrs failed: %d\n", ret);
- goto errout_with_buffers;
- }
-
- /* Determine total size to allocate */
-
- elf_elfsize(loadinfo);
-
- /* Allocate memory and load sections into memory */
-
- ret = elf_loadfile(loadinfo);
- if (ret < 0)
- {
- bdbg("elf_loadfile failed: %d\n", ret);
- goto errout_with_buffers;
- }
-
- /* Load static constructors and destructors. */
-
-#ifdef CONFIG_BINFMT_CONSTRUCTORS
- ret = elf_loadctors(loadinfo);
- if (ret < 0)
- {
- bdbg("elf_loadctors failed: %d\n", ret);
- goto errout_with_buffers;
- }
-
- ret = elf_loaddtors(loadinfo);
- if (ret < 0)
- {
- bdbg("elf_loaddtors failed: %d\n", ret);
- goto errout_with_buffers;
- }
-#endif
-
- return OK;
-
- /* Error exits */
-
-errout_with_buffers:
- elf_unload(loadinfo);
- return ret;
-}
-
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