Separate CVS parsing logic from tools/mksyscall.c; Create tools/mksymtab.c to create symbol tables from CSV files

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5075 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 277 insertions, 0 deletions

diff --git a/nuttx/tools/mksymtab.c b/nuttx/tools/mksymtab.c
new file mode 100644
index 000000000..14101f3d9
--- /dev/null
+++ b/nuttx/tools/mksymtab.c
@@ -0,0 +1,277 @@
+/****************************************************************************
+ * tools/mksymtab.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 <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "csvparser.h"
+
+/****************************************************************************
+ * Definitions
+ ****************************************************************************/
+
+#define MAX_HEADER_FILES 500
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static const char *g_hdrfiles[MAX_HEADER_FILES];
+static int nhdrfiles;
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void show_usage(const char *progname)
+{
+  fprintf(stderr, "USAGE: %s <cvs-file> <symtab-file>\n\n", progname);
+  fprintf(stderr, "Where:\n\n");
+  fprintf(stderr, "  <cvs-file>   : The path to the input CSV file\n");
+  fprintf(stderr, "  <symtab-file>: The path to the output symbol table file\n");
+  fprintf(stderr, "  -d           : Enable debug output\n");
+  exit(EXIT_FAILURE);
+}
+
+static bool check_hdrfile(const char *hdrfile)
+{
+  int i;
+
+  for (i = 0; i < nhdrfiles; i++)
+    {
+      if (strcmp(g_hdrfiles[i], hdrfile) == 0)
+        {
+          return true;
+        }
+    }
+
+  return false;
+}
+
+static void add_hdrfile(const char *hdrfile)
+{
+  if (!check_hdrfile(hdrfile))
+    {
+      if (nhdrfiles > MAX_HEADER_FILES)
+        {
+          fprintf(stderr, "ERROR:  Too man header files.  Increase MAX_HEADER_FILES\n");
+          exit(EXIT_FAILURE);
+        }
+
+      g_hdrfiles[nhdrfiles] = strdup(hdrfile);
+      nhdrfiles++;
+    }
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int main(int argc, char **argv, char **envp)
+{
+  char *csvpath;
+  char *symtab;
+  char *terminator;
+  char *ptr;
+  bool cond;
+  FILE *instream;
+  FILE *outstream;
+  int ch;
+  int i;
+
+  /* Parse command line options */
+
+  g_debug = false;
+
+  while ((ch = getopt(argc, argv, ":d")) > 0)
+    {
+      switch (ch)
+        {
+          case 'd' :
+            g_debug = true;
+            break;
+
+          case '?' :
+            fprintf(stderr, "Unrecognized option: %c\n", optopt);
+            show_usage(argv[0]);
+
+          case ':' :
+            fprintf(stderr, "Missing option argument, option: %c\n", optopt);
+            show_usage(argv[0]);
+
+           break;
+            fprintf(stderr, "Unexpected option: %c\n", ch);
+            show_usage(argv[0]);
+        }
+    }
+
+  if (optind >= argc)
+    {
+       fprintf(stderr, "Missing <cvs-file> and <symtab-file>\n");
+       show_usage(argv[0]);          
+    }
+
+  csvpath = argv[optind];
+  optind++;
+
+  if (optind >= argc)
+    {
+       fprintf(stderr, "Missing <symtab-file>\n");
+       show_usage(argv[0]);      
+    }
+
+  symtab = argv[optind];
+  optind++;
+
+  if (optind < argc)
+    {
+       fprintf(stderr, "Unexpected garbage at the end of the line\n");
+       show_usage(argv[0]);      
+    }    
+
+  /* Open the CSV file for reading */
+
+  instream = fopen(csvpath, "r");
+  if (!instream)
+    {
+      fprintf(stderr, "open %s failed: %s\n", csvpath, strerror(errno));
+      exit(EXIT_FAILURE);
+    }
+
+  /* Open the Symbol table file for writing */
+
+  outstream = fopen(symtab, "w");
+  if (!outstream)
+    {
+      fprintf(stderr, "open %s failed: %s\n", csvpath, strerror(errno));
+      exit(EXIT_FAILURE);
+    }
+
+  /* Get all of the header files that we need to include */
+
+  while ((ptr = read_line(instream)) != NULL)
+    {
+      /* Parse the line from the CVS file */
+
+      int nargs = parse_csvline(ptr);
+      if (nargs < PARM1_INDEX)
+        {
+          fprintf(stderr, "Only %d arguments found: %s\n", nargs, g_line);
+          exit(EXIT_FAILURE);
+        }
+
+      /* Add the header file to the list of header files we need to include */
+
+      add_hdrfile(g_parm[HEADER_INDEX]);
+    }
+
+  /* Back to the beginning */
+
+  rewind(instream);
+
+  /* Output up-front file boilerplate */
+
+  fprintf(outstream, "/* %s: Auto-generated symbol table.  Do not edit */\n\n", symtab);
+  fprintf(outstream, "#include <nuttx/config.h>\n");
+  fprintf(outstream, "#include <nuttx/symtab.h>\n\n");
+
+  /* Output all of the require header files */
+
+  for (i = 0; i < nhdrfiles; i++)
+    {
+      fprintf(outstream, "#include <%s>\n", g_hdrfiles[i]);
+    }
+
+  /* Now the symbol table itself */
+
+  fprintf(outstream, "\nstruct symtab_s g_symtab[] =\n");
+  fprintf(outstream, "{\n");
+
+  /* Parse each line in the CVS file */
+
+  terminator = "";
+  while ((ptr = read_line(instream)) != NULL)
+    {
+      /* Parse the line from the CVS file */
+
+      int nargs = parse_csvline(ptr);
+      if (nargs < PARM1_INDEX)
+        {
+          fprintf(stderr, "Only %d arguments found: %s\n", nargs, g_line);
+          exit(EXIT_FAILURE);
+        }
+
+      /* Output any conditional compilation */
+
+      cond = (g_parm[COND_INDEX] && strlen(g_parm[COND_INDEX]) > 0);
+      if (cond)
+        {
+          fprintf(outstream, "%s#if %s\n", terminator, g_parm[COND_INDEX]);
+          terminator = "";
+        }
+
+      /* Output the symbol table entry */
+
+      fprintf(outstream, "%s  { \"%s\", (FAR const void *)%s }",
+              terminator, g_parm[NAME_INDEX], g_parm[NAME_INDEX]);
+      terminator = ",\n";
+
+      if (cond)
+        {
+          fprintf(outstream, "%s#endif", terminator);
+          terminator = "\n";
+        }
+    }
+
+  fprintf(outstream, "\n};\n");
+
+  /* Close the CSV and symbol table files and exit */
+
+  fclose(instream);
+  fclose(outstream);
+  return EXIT_SUCCESS;
+}