You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
196 lines
6.7 KiB
196 lines
6.7 KiB
13 years ago
|
/**********************************************************************
|
||
|
|
* pfhandle.c
|
||
|
|
* POFF library global variables
|
||
|
|
*
|
||
|
|
* Copyright (C) 2008 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 <stdio.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <string.h>
|
||
|
|
|
||
|
|
#include "keywords.h" /* Standard types */
|
||
|
|
#include "pfprivate.h" /* POFF private definitions */
|
||
|
|
#include "pofflib.h" /* Public interfaces */
|
||
|
|
|
||
|
|
/**********************************************************************
|
||
|
|
* Definitions
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
/**********************************************************************
|
||
|
|
* Global Variables
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
/**********************************************************************
|
||
|
|
* Private Variables
|
||
|
|
**********************************************************************/
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* Private Function Prototypes
|
||
|
|
***********************************************************************/
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* Private Functions
|
||
|
|
***********************************************************************/
|
||
|
|
|
||
|
|
/***********************************************************************
|
||
|
|
* Public Functions
|
||
|
|
***********************************************************************/
|
||
|
|
|
||
|
|
/***********************************************************************/
|
||
|
|
/* Set all global data structures to a known state */
|
||
|
|
|
||
|
|
poffHandle_t poffCreateHandle(void)
|
||
|
|
{
|
||
|
|
poffInfo_t *poffInfo;
|
||
|
|
|
||
|
|
/* Create a new POFF handle */
|
||
|
|
|
||
|
|
poffInfo = (poffInfo_t*)malloc(sizeof(poffInfo_t));
|
||
|
|
if (poffInfo != NULL)
|
||
|
|
{
|
||
|
|
/* Set everthing to zero */
|
||
|
|
|
||
|
|
memset(poffInfo, 0, sizeof(poffInfo_t));
|
||
|
|
|
||
|
|
/* Initialize POFF file header */
|
||
|
|
|
||
|
|
poffInfo->fileHeader.fh_ident[FHI_MAG0] = FHI_POFF_MAG0;
|
||
|
|
poffInfo->fileHeader.fh_ident[FHI_MAG1] = FHI_POFF_MAG1;
|
||
|
|
poffInfo->fileHeader.fh_ident[FHI_MAG2] = FHI_POFF_MAG2;
|
||
|
|
poffInfo->fileHeader.fh_ident[FHI_MAG3] = FHI_POFF_MAG3;
|
||
|
|
poffInfo->fileHeader.fh_version = FHV_CURRENT;
|
||
|
|
poffInfo->fileHeader.fh_shsize = sizeof(poffSectionHeader_t);
|
||
|
|
poffInfo->fileHeader.fh_shoff = sizeof(poffFileHeader_t);
|
||
|
|
|
||
|
|
/* Initialize the program section header */
|
||
|
|
|
||
|
|
poffInfo->progSection.sh_type = SHT_PROGDATA;
|
||
|
|
poffInfo->progSection.sh_flags = SHF_ALLOC | SHF_EXEC;
|
||
|
|
|
||
|
|
/* Initialize the initialized data section header */
|
||
|
|
|
||
|
|
poffInfo->roDataSection.sh_type = SHT_PROGDATA;
|
||
|
|
poffInfo->roDataSection.sh_flags = SHF_WRITE | SHF_ALLOC;
|
||
|
|
|
||
|
|
/* Initialize the symbol table section header */
|
||
|
|
|
||
|
|
poffInfo->symbolTableSection.sh_type = SHT_SYMTAB;
|
||
|
|
poffInfo->symbolTableSection.sh_entsize = sizeof(poffSymbol_t);
|
||
|
|
|
||
|
|
/* Initialize the string table section header */
|
||
|
|
|
||
|
|
poffInfo->stringTableSection.sh_type = SHT_STRTAB;
|
||
|
|
|
||
|
|
/* Initialize the relocation table section header */
|
||
|
|
|
||
|
|
poffInfo->relocSection.sh_type = SHT_REL;
|
||
|
|
poffInfo->relocSection.sh_entsize = sizeof(poffRelocation_t);
|
||
|
|
|
||
|
|
/* Initialize the file table section header */
|
||
|
|
|
||
|
|
poffInfo->fileNameTableSection.sh_type = SHT_FILETAB;
|
||
|
|
poffInfo->fileNameTableSection.sh_entsize = sizeof(poffFileTab_t);
|
||
|
|
|
||
|
|
/* Initialize the line number section header */
|
||
|
|
|
||
|
|
poffInfo->lineNumberSection.sh_type = SHT_LINENO;
|
||
|
|
poffInfo->lineNumberSection.sh_entsize = sizeof(poffLineNumber_t);
|
||
|
|
|
||
|
|
/* Initialize the debug function info section header */
|
||
|
|
|
||
|
|
poffInfo->debugFuncSection.sh_type = SHT_DEBUG;
|
||
|
|
poffInfo->debugFuncSection.sh_entsize = sizeof(poffDebugFuncInfo_t);
|
||
|
|
}
|
||
|
|
return poffInfo;
|
||
|
|
}
|
||
|
|
|
||
|
|
/***********************************************************************/
|
||
|
|
|
||
|
|
void poffDestroyHandle(poffHandle_t handle)
|
||
|
|
{
|
||
|
|
poffInfo_t *poffInfo = (poffInfo_t*)handle;
|
||
|
|
|
||
|
|
/* Free all of the allocated, in-memory data */
|
||
|
|
|
||
|
|
if (poffInfo->progSectionData)
|
||
|
|
free(poffInfo->progSectionData);
|
||
|
|
|
||
|
|
if (poffInfo->roDataSectionData)
|
||
|
|
free(poffInfo->roDataSectionData);
|
||
|
|
|
||
|
|
if (poffInfo->symbolTable)
|
||
|
|
free(poffInfo->symbolTable);
|
||
|
|
|
||
|
|
if (poffInfo->stringTable)
|
||
|
|
free(poffInfo->stringTable);
|
||
|
|
|
||
|
|
if (poffInfo->relocTable)
|
||
|
|
free(poffInfo->relocTable);
|
||
|
|
|
||
|
|
if (poffInfo->fileNameTable)
|
||
|
|
free(poffInfo->fileNameTable);
|
||
|
|
|
||
|
|
if (poffInfo->lineNumberTable)
|
||
|
|
free(poffInfo->lineNumberTable);
|
||
|
|
|
||
|
|
if (poffInfo->debugFuncTable)
|
||
|
|
free(poffInfo->debugFuncTable);
|
||
|
|
|
||
|
|
/* Free the container */
|
||
|
|
|
||
|
|
free(handle);
|
||
|
|
}
|
||
|
|
|
||
|
|
/***********************************************************************/
|
||
|
|
|
||
|
|
void poffResetAccess(poffHandle_t handle)
|
||
|
|
{
|
||
|
|
poffInfo_t *poffInfo = (poffInfo_t*)handle;
|
||
|
|
|
||
|
|
/* Reset read/write indices */
|
||
|
|
|
||
|
|
poffInfo->symbolIndex = 0;
|
||
|
|
poffInfo->progSectionIndex = 0;
|
||
|
|
poffInfo->relocIndex = 0;
|
||
|
|
poffInfo->fileNameIndex = 0;
|
||
|
|
poffInfo->lineNumberIndex = 0;
|
||
|
|
poffInfo->debugFuncIndex = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
/***********************************************************************/
|
||
|
|
|