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-rw-r--r--tools/build/rtems-bin2c.c291
1 files changed, 291 insertions, 0 deletions
diff --git a/tools/build/rtems-bin2c.c b/tools/build/rtems-bin2c.c
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+++ b/tools/build/rtems-bin2c.c
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+/*
+ * bin2c.c
+ *
+ * convert a binary file into a C source array.
+ *
+ * THE "BEER-WARE LICENSE" (Revision 3.1415):
+ * sandro AT sigala DOT it wrote this file. As long as you retain this
+ * notice you can do whatever you want with this stuff. If we meet some
+ * day, and you think this stuff is worth it, you can buy me a beer in
+ * return. Sandro Sigala
+ *
+ * Subsequently modified by Joel Sherrill <joel.sherrill@oarcorp.com>
+ * to add a number of capabilities not in the original.
+ *
+ * syntax: bin2c [-c] [-z] <input_file> <output_file>
+ *
+ * -c do NOT add the "const" keyword to definition
+ * -s add the "static" keywork to definition
+ * -v verbose
+ * -z terminate the array with a zero (useful for embedded C strings)
+ *
+ * examples:
+ * bin2c -c myimage.png myimage_png.cpp
+ * bin2c -z sometext.txt sometext_txt.cpp
+ *
+ */
+
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <libgen.h>
+
+#ifndef PATH_MAX
+#define PATH_MAX 1024
+#endif
+
+int useconst = 1;
+int usestatic = 0;
+int verbose = 0;
+int zeroterminated = 0;
+int createC = 1;
+int createH = 1;
+
+int myfgetc(FILE *f)
+{
+ int c = fgetc(f);
+ if (c == EOF && zeroterminated) {
+ zeroterminated = 0;
+ return 0;
+ }
+ return c;
+}
+
+void process(const char *ifname, const char *ofname)
+{
+ FILE *ifile, *ocfile, *ohfile;
+ char buf[PATH_MAX], *p;
+ char obasename[PATH_MAX];
+ char ocname[PATH_MAX];
+ char ohname[PATH_MAX];
+ const char *cp;
+ size_t len;
+
+ /* Error check */
+ if ( !ifname || !ofname ) {
+ fprintf(stderr, "process has NULL filename\n");
+ exit(1);
+ }
+
+ strncpy( obasename, ofname, PATH_MAX );
+ len = strlen( obasename );
+ if ( len >= 2 ) {
+ if ( obasename[len-2] == '.' ) {
+ if ( (obasename[len-1] == 'c') || (obasename[len-1] == 'h') )
+ obasename[len-2] = '\0';
+ }
+ }
+
+ sprintf( ocname, "%s.c", obasename );
+ sprintf( ohname, "%s.h", obasename );
+
+ if ( verbose ) {
+ fprintf(
+ stderr,
+ "in file: %s\n"
+ "c file: %s\n"
+ "h file: %s\n",
+ ifname,
+ ocname,
+ ohname
+ );
+ }
+
+ /* Open input and output files */
+ ifile = fopen(ifname, "rb");
+ if (ifile == NULL) {
+ fprintf(stderr, "cannot open %s for reading\n", ifname);
+ exit(1);
+ }
+
+ if ( createC ) {
+ ocfile = fopen(ocname, "wb");
+ if (ocfile == NULL) {
+ fprintf(stderr, "cannot open %s for writing\n", ocname);
+ exit(1);
+ }
+ }
+
+ if ( createH ) {
+ ohfile = fopen(ohname, "wb");
+ if (ohfile == NULL) {
+ fprintf(stderr, "cannot open %s for writing\n", ohname);
+ exit(1);
+ }
+ }
+
+ /* find basename */
+ char *ifbasename = strdup(ifname);
+ ifbasename = basename(ifbasename);
+
+ strcpy(buf, ifbasename);
+ for (p = buf; *p != '\0'; ++p)
+ if (!isalnum(*p))
+ *p = '_';
+
+ if ( createC ) {
+ /* print C file header */
+ fprintf(
+ ocfile,
+ "/*\n"
+ " * Declarations for C structure representing binary file %s\n"
+ " *\n"
+ " * WARNING: Automatically generated -- do not edit!\n"
+ " */\n"
+ "\n"
+ "#include <sys/types.h>\n"
+ "\n",
+ ifbasename
+ );
+
+ /* print structure */
+ fprintf(
+ ocfile,
+ "%s%sunsigned char %s[] = {\n ",
+ ((usestatic) ? "static " : ""),
+ ((useconst) ? "const " : ""),
+ buf
+ );
+ int c, col = 1;
+ while ((c = myfgetc(ifile)) != EOF) {
+ if (col >= 78 - 6) {
+ fprintf(ocfile, "\n ");
+ col = 1;
+ }
+ fprintf(ocfile, "0x%.2x, ", c);
+ col += 6;
+
+ }
+ fprintf(ocfile, "\n};\n");
+
+ /* print sizeof */
+ fprintf(
+ ocfile,
+ "\n"
+ "%s%ssize_t %s_size = sizeof(%s);\n",
+ ((usestatic) ? "static " : ""),
+ ((useconst) ? "const " : ""),
+ buf,
+ buf
+ );
+ } /* createC */
+
+ /*****************************************************************/
+ /****** END OF C FILE *****/
+ /*****************************************************************/
+
+ if ( createH ) {
+ /* print H file header */
+ fprintf(
+ ohfile,
+ "/*\n"
+ " * Extern declarations for C structure representing binary file %s\n"
+ " *\n"
+ " * WARNING: Automatically generated -- do not edit!\n"
+ " */\n"
+ "\n"
+ "#ifndef __%s_h\n"
+ "#define __%s_h\n"
+ "\n"
+ "#include <sys/types.h>\n"
+ "\n",
+ ifbasename, /* header */
+ obasename, /* ifndef */
+ obasename /* define */
+ );
+
+ /* print structure */
+ fprintf(
+ ohfile,
+ "extern %s%sunsigned char %s[];",
+ ((usestatic) ? "static " : ""),
+ ((useconst) ? "const " : ""),
+ buf
+ );
+ /* print sizeof */
+ fprintf(
+ ohfile,
+ "\n"
+ "extern %s%ssize_t %s_size;\n",
+ ((usestatic) ? "static " : ""),
+ ((useconst) ? "const " : ""),
+ buf
+ );
+
+ fprintf(
+ ohfile,
+ "\n"
+ "#endif\n"
+ );
+ } /* createH */
+
+ /*****************************************************************/
+ /****** END OF H FILE *****/
+ /*****************************************************************/
+
+ fclose(ifile);
+ if ( createC ) { fclose(ocfile); }
+ if ( createH ) { fclose(ohfile); }
+}
+
+void usage(void)
+{
+ fprintf(
+ stderr,
+ "usage: bin2c [-csvzCH] <input_file> <output_file>\n"
+ " <input_file> is the binary file to convert\n"
+ " <output_file> should not have a .c or .h extension\n"
+ "\n"
+ " -c - do NOT use const in declaration\n"
+ " -s - do use static in declaration\n"
+ " -v - verbose\n"
+ " -z - add zero terminator\n"
+ " -H - create c-header only\n"
+ " -C - create c-source file only\n"
+ );
+ exit(1);
+}
+
+int main(int argc, char **argv)
+{
+ while (argc > 3) {
+ if (!strcmp(argv[1], "-c")) {
+ useconst = 0;
+ --argc;
+ ++argv;
+ } else if (!strcmp(argv[1], "-s")) {
+ usestatic = 1;
+ --argc;
+ ++argv;
+ } else if (!strcmp(argv[1], "-v")) {
+ verbose = 1;
+ --argc;
+ ++argv;
+ } else if (!strcmp(argv[1], "-z")) {
+ zeroterminated = 1;
+ --argc;
+ ++argv;
+ } else if (!strcmp(argv[1], "-C")) {
+ createH = 0;
+ createC = 1;
+ --argc;
+ ++argv;
+ } else if (!strcmp(argv[1], "-H")) {
+ createC = 0;
+ createH = 1;
+ --argc;
+ ++argv;
+ } else {
+ usage();
+ }
+ }
+ if (argc != 3) {
+ usage();
+ }
+
+ /* process( input_file, output_basename ) */
+ process(argv[1], argv[2]);
+ return 0;
+}
+