diff options
Diffstat (limited to 'misc/pascal/libpoff/pfwrodata.c')
| -rw-r--r-- | misc/pascal/libpoff/pfwrodata.c | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/misc/pascal/libpoff/pfwrodata.c b/misc/pascal/libpoff/pfwrodata.c new file mode 100644 index 000000000..5882462b4 --- /dev/null +++ b/misc/pascal/libpoff/pfwrodata.c @@ -0,0 +1,192 @@ +/**********************************************************************
+ * pfwrodata.c
+ * Write to the RODATA section of a POFF file
+ *
+ * Copyright (C) 2008 Gregory Nutt. All rights reserved.
+ * Author: Gregory Nutt <spudmonkey@racsa.co.cr>
+ *
+ * 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 <errno.h>
+
+#include "keywords.h" /* Standard types */
+#include "pedefs.h" /* error code definitions */
+
+#include "perr.h" /* error() */
+#include "pofflib.h" /* POFF library interface */
+#include "pfprivate.h" /* POFF private definitions */
+
+/**********************************************************************
+ * Definitions
+ **********************************************************************/
+
+/**********************************************************************
+ * Global Variables
+ **********************************************************************/
+
+/**********************************************************************
+ * Private Variables
+ **********************************************************************/
+
+/***********************************************************************
+ * Private Function Prototypes
+ ***********************************************************************/
+
+/***********************************************************************
+ * Private Functions
+ ***********************************************************************/
+
+static uint16 poffCheckRoDataAlloc(poffInfo_t *poffInfo)
+{
+ if (!poffInfo->roDataSectionData)
+ {
+ /* No, allocate it now */
+
+ poffInfo->roDataSectionData = (char*)malloc(INITIAL_RODATA_SECTION_SIZE);
+ if (!poffInfo->roDataSectionData)
+ {
+ return eNOMEMORY;
+ }
+
+ poffInfo->roDataSection.sh_size = 0;
+ poffInfo->roDataSectionAlloc = INITIAL_RODATA_SECTION_SIZE;
+ }
+ return eNOERROR;
+}
+
+static uint16 poffCheckRoDataRealloc(poffInfo_t *poffInfo, uint16 len)
+{
+ /* Check if there is room for the new data */
+
+ if (poffInfo->roDataSection.sh_size + len > poffInfo->roDataSectionAlloc)
+ {
+ uint32 newAlloc;
+ void *tmp;
+
+ /* Make certain that this is big enough (it should be) */
+
+ newAlloc = poffInfo->roDataSectionAlloc + RODATA_SECTION_INCREMENT;
+ while (poffInfo->roDataSection.sh_size + len > newAlloc)
+ {
+ newAlloc += RODATA_SECTION_INCREMENT;
+ }
+
+ /* Reallocate the roDataram data section buffer */
+
+ tmp = realloc(poffInfo->roDataSectionData, newAlloc);
+ if (!tmp)
+ {
+ return eNOMEMORY;
+ }
+
+ /* And set the new size */
+
+ poffInfo->roDataSectionAlloc = newAlloc;
+ poffInfo->roDataSectionData = (ubyte*)tmp;
+ }
+ return eNOERROR;
+}
+
+/***********************************************************************
+ * Public Functions
+ ***********************************************************************/
+
+#if 0 /* Not used */
+uint32 poffAddRoDataByte(poffHandle_t handle, ubyte dataByte)
+{
+ poffInfo_t *poffInfo = (poffInfo_t*)handle;
+ uint32 offset;
+ uint16 errCode;
+
+ /* Check if we have allocated a data section buffer yet */
+
+ errCode = poffCheckRoDataAlloc(poffInfo);
+ if (errCode != eNOERROR)
+ {
+ fatal(errCode);
+ }
+
+ /* Check if there is room for a new byte */
+
+ errCode = poffCheckRoDataRealloc(poffInfo, 1);
+
+ /* Copy data section byte into the data section buffer */
+
+ offset = poffInfo->roDataSection.sh_size;
+ poffInfo->roDataSectionData[offset] = dataByte;
+
+ /* Set the new size of the string table */
+
+ poffInfo->roDataSection.sh_size++;
+ return offset;
+}
+#endif
+
+/***********************************************************************/
+
+uint32 poffAddRoDataString(poffHandle_t handle, const char *string)
+{
+ poffInfo_t *poffInfo = (poffInfo_t*)handle;
+ uint32 len;
+ uint32 offset;
+ uint16 errCode;
+
+ /* Check if we have allocated a data section buffer yet */
+
+ errCode = poffCheckRoDataAlloc(poffInfo);
+ if (errCode != eNOERROR)
+ {
+ fatal(errCode);
+ }
+
+ /* Check if there is room for a new byte */
+
+ len = strlen(string) + 1;
+ errCode = poffCheckRoDataRealloc(poffInfo, len);
+
+ /* Copy data section byte into the data section buffer */
+
+ offset = poffInfo->roDataSection.sh_size;
+ memcpy(&poffInfo->roDataSectionData[offset], string, len);
+
+ /* Set the new size of the string table */
+
+ poffInfo->roDataSection.sh_size += len;
+ return offset;
+}
+
+/***********************************************************************/
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