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-rw-r--r--nuttx/binfmt/elf.c323
1 files changed, 0 insertions, 323 deletions
diff --git a/nuttx/binfmt/elf.c b/nuttx/binfmt/elf.c
deleted file mode 100644
index 9dc59fbdd..000000000
--- a/nuttx/binfmt/elf.c
+++ /dev/null
@@ -1,323 +0,0 @@
-/****************************************************************************
- * binfmt/elf.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 <string.h>
-#include <elf32.h>
-#include <debug.h>
-#include <errno.h>
-
-#include <arpa/inet.h>
-#include <nuttx/binfmt/binfmt.h>
-#include <nuttx/binfmt/elf.h>
-
-#ifdef CONFIG_ELF
-
-/****************************************************************************
- * Pre-processor Definitions
- ****************************************************************************/
-
-/* CONFIG_DEBUG, CONFIG_DEBUG_VERBOSE, and CONFIG_DEBUG_BINFMT have to be
- * defined or CONFIG_ELF_DUMPBUFFER does nothing.
- */
-
-#if !defined(CONFIG_DEBUG_VERBOSE) || !defined (CONFIG_DEBUG_BINFMT)
-# undef CONFIG_ELF_DUMPBUFFER
-#endif
-
-#ifndef CONFIG_ELF_STACKSIZE
-# define CONFIG_ELF_STACKSIZE 2048
-#endif
-
-#ifdef CONFIG_ELF_DUMPBUFFER
-# define elf_dumpbuffer(m,b,n) bvdbgdumpbuffer(m,b,n)
-#else
-# define elf_dumpbuffer(m,b,n)
-#endif
-
-#ifndef MIN
-# define MIN(a,b) (a < b ? a : b)
-#endif
-
-/****************************************************************************
- * Private Function Prototypes
- ****************************************************************************/
-
-static int elf_loadbinary(FAR struct binary_s *binp);
-#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_BINFMT)
-static void elf_dumploadinfo(FAR struct elf_loadinfo_s *loadinfo);
-#endif
-
-/****************************************************************************
- * Private Data
- ****************************************************************************/
-
-static struct binfmt_s g_elfbinfmt =
-{
- NULL, /* next */
- elf_loadbinary, /* load */
-};
-
-/****************************************************************************
- * Private Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_dumploadinfo
- ****************************************************************************/
-
-#if defined(CONFIG_DEBUG) && defined(CONFIG_DEBUG_BINFMT)
-static void elf_dumploadinfo(FAR struct elf_loadinfo_s *loadinfo)
-{
- int i;
-
- bdbg("LOAD_INFO:\n");
- bdbg(" elfalloc: %08lx\n", (long)loadinfo->elfalloc);
- bdbg(" elfsize: %ld\n", (long)loadinfo->elfsize);
- bdbg(" filelen: %ld\n", (long)loadinfo->filelen);
-#ifdef CONFIG_BINFMT_CONSTRUCTORS
- bdbg(" ctoralloc: %08lx\n", (long)loadinfo->ctoralloc);
- bdbg(" ctors: %08lx\n", (long)loadinfo->ctors);
- bdbg(" nctors: %d\n", loadinfo->nctors);
- bdbg(" dtoralloc: %08lx\n", (long)loadinfo->dtoralloc);
- bdbg(" dtors: %08lx\n", (long)loadinfo->dtors);
- bdbg(" ndtors: %d\n", loadinfo->ndtors);
-#endif
- bdbg(" filfd: %d\n", loadinfo->filfd);
- bdbg(" symtabidx: %d\n", loadinfo->symtabidx);
- bdbg(" strtabidx: %d\n", loadinfo->strtabidx);
-
- bdbg("ELF Header:\n");
- bdbg(" e_ident: %02x %02x %02x %02x\n",
- loadinfo->ehdr.e_ident[0], loadinfo->ehdr.e_ident[1],
- loadinfo->ehdr.e_ident[2], loadinfo->ehdr.e_ident[3]);
- bdbg(" e_type: %04x\n", loadinfo->ehdr.e_type);
- bdbg(" e_machine: %04x\n", loadinfo->ehdr.e_machine);
- bdbg(" e_version: %08x\n", loadinfo->ehdr.e_version);
- bdbg(" e_entry: %08lx\n", (long)loadinfo->ehdr.e_entry);
- bdbg(" e_phoff: %d\n", loadinfo->ehdr.e_phoff);
- bdbg(" e_shoff: %d\n", loadinfo->ehdr.e_shoff);
- bdbg(" e_flags: %08x\n" , loadinfo->ehdr.e_flags);
- bdbg(" e_ehsize: %d\n", loadinfo->ehdr.e_ehsize);
- bdbg(" e_phentsize: %d\n", loadinfo->ehdr.e_phentsize);
- bdbg(" e_phnum: %d\n", loadinfo->ehdr.e_phnum);
- bdbg(" e_shentsize: %d\n", loadinfo->ehdr.e_shentsize);
- bdbg(" e_shnum: %d\n", loadinfo->ehdr.e_shnum);
- bdbg(" e_shstrndx: %d\n", loadinfo->ehdr.e_shstrndx);
-
- if (loadinfo->shdr && loadinfo->ehdr.e_shnum > 0)
- {
- for (i = 0; i < loadinfo->ehdr.e_shnum; i++)
- {
- FAR Elf32_Shdr *shdr = &loadinfo->shdr[i];
- bdbg("Sections %d:\n", i);
- bdbg(" sh_name: %08x\n", shdr->sh_name);
- bdbg(" sh_type: %08x\n", shdr->sh_type);
- bdbg(" sh_flags: %08x\n", shdr->sh_flags);
- bdbg(" sh_addr: %08x\n", shdr->sh_addr);
- bdbg(" sh_offset: %d\n", shdr->sh_offset);
- bdbg(" sh_size: %d\n", shdr->sh_size);
- bdbg(" sh_link: %d\n", shdr->sh_link);
- bdbg(" sh_info: %d\n", shdr->sh_info);
- bdbg(" sh_addralign: %d\n", shdr->sh_addralign);
- bdbg(" sh_entsize: %d\n", shdr->sh_entsize);
- }
- }
-}
-#else
-# define elf_dumploadinfo(i)
-#endif
-
-/****************************************************************************
- * Name: elf_loadbinary
- *
- * Description:
- * Verify that the file is an ELF binary and, if so, load the ELF
- * binary into memory
- *
- ****************************************************************************/
-
-static int elf_loadbinary(struct binary_s *binp)
-{
- struct elf_loadinfo_s loadinfo; /* Contains globals for libelf */
- int ret;
-
- bvdbg("Loading file: %s\n", binp->filename);
-
- /* Initialize the ELF library to load the program binary. */
-
- ret = elf_init(binp->filename, &loadinfo);
- elf_dumploadinfo(&loadinfo);
- if (ret != 0)
- {
- bdbg("Failed to initialize for load of ELF program: %d\n", ret);
- goto errout;
- }
-
- /* Load the program binary */
-
- ret = elf_load(&loadinfo);
- elf_dumploadinfo(&loadinfo);
- if (ret != 0)
- {
- bdbg("Failed to load ELF program binary: %d\n", ret);
- goto errout_with_init;
- }
-
- /* Bind the program to the exported symbol table */
-
- ret = elf_bind(&loadinfo, binp->exports, binp->nexports);
- if (ret != 0)
- {
- bdbg("Failed to bind symbols program binary: %d\n", ret);
- goto errout_with_load;
- }
-
- /* Return the load information */
-
- binp->entrypt = (main_t)(loadinfo.elfalloc + loadinfo.ehdr.e_entry);
- binp->stacksize = CONFIG_ELF_STACKSIZE;
-
- /* Add the ELF allocation to the alloc[] only if there is no address
- * enironment. If there is an address environment, it will automatically
- * be freed when the function exits
- *
- * REVISIT: If the module is loaded then unloaded, wouldn't this cause
- * a memory leak?
- */
-
-#ifdef CONFIG_ADDRENV
-# warning "REVISIT"
-#else
- binp->alloc[0] = (FAR void *)loadinfo.elfalloc;
-#endif
-
-#ifdef CONFIG_BINFMT_CONSTRUCTORS
- /* Save information about constructors. NOTE: desctructors are not
- * yet supported.
- */
-
- binp->alloc[1] = loadinfo.ctoralloc;
- binp->ctors = loadinfo.ctors;
- binp->nctors = loadinfo.nctors;
-
- binp->alloc[2] = loadinfo.dtoralloc;
- binp->dtors = loadinfo.dtors;
- binp->ndtors = loadinfo.ndtors;
-#endif
-
-#ifdef CONFIG_ADDRENV
- /* Save the address environment. This will be needed when the module is
- * executed for the up_addrenv_assign() call.
- */
-
- binp->addrenv = loadinfo.addrenv;
-#endif
-
- elf_dumpbuffer("Entry code", (FAR const uint8_t*)binp->entrypt,
- MIN(loadinfo.allocsize - loadinfo.ehdr.e_entry, 512));
-
- elf_uninit(&loadinfo);
- return OK;
-
-errout_with_load:
- elf_unload(&loadinfo);
-errout_with_init:
- elf_uninit(&loadinfo);
-errout:
- return ret;
-}
-
-/****************************************************************************
- * Public Functions
- ****************************************************************************/
-
-/****************************************************************************
- * Name: elf_initialize
- *
- * Description:
- * ELF support is built unconditionally. However, it order to
- * use this binary format, this function must be called during system
- * format in order to register the ELF binary format.
- *
- * Returned Value:
- * This is a NuttX internal function so it follows the convention that
- * 0 (OK) is returned on success and a negated errno is returned on
- * failure.
- *
- ****************************************************************************/
-
-int elf_initialize(void)
-{
- int ret;
-
- /* Register ourselves as a binfmt loader */
-
- bvdbg("Registering ELF\n");
-
- ret = register_binfmt(&g_elfbinfmt);
- if (ret != 0)
- {
- bdbg("Failed to register binfmt: %d\n", ret);
- }
-
- return ret;
-}
-
-/****************************************************************************
- * Name: elf_uninitialize
- *
- * Description:
- * Unregister the ELF binary loader
- *
- * Returned Value:
- * None
- *
- ****************************************************************************/
-
-void elf_uninitialize(void)
-{
- unregister_binfmt(&g_elfbinfmt);
-}
-
-#endif /* CONFIG_ELF */
-
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