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Diffstat (limited to 'nuttx/binfmt/libelf/libelf_sections.c')
-rw-r--r--nuttx/binfmt/libelf/libelf_sections.c284
1 files changed, 0 insertions, 284 deletions
diff --git a/nuttx/binfmt/libelf/libelf_sections.c b/nuttx/binfmt/libelf/libelf_sections.c
deleted file mode 100644
index c41793544..000000000
--- a/nuttx/binfmt/libelf/libelf_sections.c
+++ /dev/null
@@ -1,284 +0,0 @@
-/****************************************************************************
- * binfmt/libelf/libelf_sections.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 <stdlib.h>
-#include <string.h>
-#include <assert.h>
-#include <errno.h>
-#include <debug.h>
-
-#include <nuttx/kmalloc.h>
-#include <nuttx/binfmt/elf.h>
-
-#include "libelf.h"
-
-/****************************************************************************
- * Pre-Processor Definitions
- ****************************************************************************/
-
-/****************************************************************************
- * Private Constant Data
- ****************************************************************************/
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_sectname
- *
- * Description:
- * Get the symbol name in loadinfo->iobuffer[].
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-static inline int elf_sectname(FAR struct elf_loadinfo_s *loadinfo,
- FAR const Elf32_Shdr *shdr)
-{
- FAR Elf32_Shdr *shstr;
- FAR uint8_t *buffer;
- off_t offset;
- size_t readlen;
- size_t bytesread;
- int shstrndx;
- int ret;
-
- /* Get the section header table index of the entry associated with the
- * section name string table. If the file has no section name string table,
- * this member holds the value SH_UNDEF.
- */
-
- shstrndx = loadinfo->ehdr.e_shstrndx;
- if (shstrndx == SHN_UNDEF)
- {
- bdbg("No section header string table\n");
- return -EINVAL;
- }
-
- /* Get the section name string table section header */
-
- shstr = &loadinfo->shdr[shstrndx];
-
- /* Get the file offset to the string that is the name of the section. This
- * is the sum of:
- *
- * shstr->sh_offset: The file offset to the first byte of the section
- * header string table data.
- * shdr->sh_name: The offset to the name of the section in the section
- * name table
- */
-
- offset = shstr->sh_offset + shdr->sh_name;
-
- /* Loop until we get the entire section name into memory */
-
- buffer = loadinfo->iobuffer;
- bytesread = 0;
-
- for (;;)
- {
- /* Get the number of bytes to read */
-
- readlen = loadinfo->buflen - bytesread;
- if (offset + readlen > loadinfo->filelen)
- {
- readlen = loadinfo->filelen - offset;
- if (readlen <= 0)
- {
- bdbg("At end of file\n");
- return -EINVAL;
- }
- }
-
- /* Read that number of bytes into the array */
-
- buffer = &loadinfo->iobuffer[bytesread];
- ret = elf_read(loadinfo, buffer, readlen, offset);
- if (ret < 0)
- {
- bdbg("Failed to read section name\n");
- return ret;
- }
-
- bytesread += readlen;
-
- /* Did we read the NUL terminator? */
-
- if (memchr(buffer, '\0', readlen) != NULL)
- {
- /* Yes, the buffer contains a NUL terminator. */
-
- return OK;
- }
-
- /* No.. then we have to read more */
-
- ret = elf_reallocbuffer(loadinfo, CONFIG_ELF_BUFFERINCR);
- if (ret < 0)
- {
- bdbg("elf_reallocbuffer failed: %d\n", ret);
- return ret;
- }
- }
-
- /* We will not get here */
-
- return OK;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_loadshdrs
- *
- * Description:
- * Loads section headers into memory.
- *
- * Returned Value:
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-int elf_loadshdrs(FAR struct elf_loadinfo_s *loadinfo)
-{
- size_t shdrsize;
- int ret;
-
- DEBUGASSERT(loadinfo->shdr == NULL);
-
- /* Verify that there are sections */
-
- if (loadinfo->ehdr.e_shnum < 1)
- {
- bdbg("No sections(?)\n");
- return -EINVAL;
- }
-
- /* Get the total size of the section header table */
-
- shdrsize = (size_t)loadinfo->ehdr.e_shentsize * (size_t)loadinfo->ehdr.e_shnum;
- if(loadinfo->ehdr.e_shoff + shdrsize > loadinfo->filelen)
- {
- bdbg("Insufficent space in file for section header table\n");
- return -ESPIPE;
- }
-
- /* Allocate memory to hold a working copy of the sector header table */
-
- loadinfo->shdr = (FAR Elf32_Shdr*)kmalloc(shdrsize);
- if (!loadinfo->shdr)
- {
- bdbg("Failed to allocate the section header table. Size: %ld\n", (long)shdrsize);
- return -ENOMEM;
- }
-
- /* Read the section header table into memory */
-
- ret = elf_read(loadinfo, (FAR uint8_t*)loadinfo->shdr, shdrsize, loadinfo->ehdr.e_shoff);
- if (ret < 0)
- {
- bdbg("Failed to read section header table: %d\n", ret);
- }
-
- return ret;
-}
-
-/****************************************************************************
- * Name: elf_findsection
- *
- * Description:
- * A section by its name.
- *
- * Input Parameters:
- * loadinfo - Load state information
- * sectname - Name of the section to find
- *
- * Returned Value:
- * On success, the index to the section is returned; A negated errno value
- * is returned on failure.
- *
- ****************************************************************************/
-
-int elf_findsection(FAR struct elf_loadinfo_s *loadinfo,
- FAR const char *sectname)
-{
- FAR const Elf32_Shdr *shdr;
- int ret;
- int i;
-
- /* Search through the shdr[] array in loadinfo for a section named 'sectname' */
-
- for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
- {
- /* Get the name of this section */
-
- shdr = &loadinfo->shdr[i];
- ret = elf_sectname(loadinfo, shdr);
- if (ret < 0)
- {
- bdbg("elf_sectname failed: %d\n", ret);
- return ret;
- }
-
- /* Check if the name of this section is 'sectname' */
-
- bvdbg("%d. Comparing \"%s\" and .\"%s\"\n",
- i, loadinfo->iobuffer, sectname);
-
- if (strcmp((FAR const char *)loadinfo->iobuffer, sectname) == 0)
- {
- /* We found it... return the index */
-
- return i;
- }
- }
-
- /* We failed to find a section with this name. */
-
- return -ENOENT;
-}
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