diff options
Diffstat (limited to 'misc/pascal/libpoff/pfrlineno.c')
| -rw-r--r-- | misc/pascal/libpoff/pfrlineno.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/misc/pascal/libpoff/pfrlineno.c b/misc/pascal/libpoff/pfrlineno.c new file mode 100644 index 000000000..d1ec2a5f2 --- /dev/null +++ b/misc/pascal/libpoff/pfrlineno.c @@ -0,0 +1,127 @@ +/**********************************************************************
+ * pfrlineno.c
+ * Read line number data from 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
+ ***********************************************************************/
+
+/***********************************************************************
+ * Public Functions
+ ***********************************************************************/
+
+/***********************************************************************/
+
+sint32 poffGetLineNumber(poffHandle_t handle, poffLibLineNumber_t *lineno)
+{
+ poffInfo_t *poffInfo = (poffInfo_t*)handle;
+ poffLineNumber_t *pln;
+ uint32 stringTableIndex;
+ uint32 lineNumberIndex;
+
+ /* First, check if there is another line number in the table to be had.
+ * This check is a little sloppy in that it assumes the the size in
+ * in the header is an even multiple of line number table entries
+ */
+
+ lineNumberIndex = poffInfo->lineNumberIndex;
+ if (lineNumberIndex >= poffInfo->lineNumberSection.sh_size)
+ {
+ /* Return -1 to signal the end of the list */
+
+ memset(lineno, 0, sizeof(poffLibLineNumber_t));
+ return -1;
+ }
+ else
+ {
+ /* Get a reference to the line number record */
+
+ pln = (poffLineNumber_t*)&poffInfo->lineNumberTable[lineNumberIndex];
+
+ /* Get the filename table index */
+
+ if (pln->ln_fileno * sizeof(poffFileTab_t) >
+ poffInfo->fileNameTableSection.sh_size)
+ {
+ fatal(ePOFFCONFUSION);
+ }
+ stringTableIndex = (uint32)poffInfo->fileNameTable[pln->ln_fileno];
+
+ /* Return the line number information */
+
+ lineno->lineno = pln->ln_lineno;
+ lineno->offset = pln->ln_poffset;
+ lineno->filename = poffGetString(handle, stringTableIndex);
+
+ /* Set up for the next read */
+
+ poffInfo->lineNumberIndex += poffInfo->lineNumberSection.sh_entsize;
+ return lineNumberIndex;
+ }
+}
+
+/***********************************************************************/
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