Move tools out of src (src should be

only code that goes into final binary).

tools/xxd.c

@@ -0,0 +1,104 @@
+/*
+* Copyright (c) 2018 Calvin Rose
+*
+* Permission is hereby granted, free of charge, to any person obtaining a copy
+* of this software and associated documentation files (the "Software"), to
+* deal in the Software without restriction, including without limitation the
+* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+* sell copies of the Software, and to permit persons to whom the Software is
+* furnished to do so, subject to the following conditions:
+*
+* The above copyright notice and this permission notice shall be included in
+* all copies or substantial portions of the Software.
+*
+* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+* IN THE SOFTWARE.
+*/
+
+/* Simple clone of the xxd tool used at build time. Used to
+ * create headers out of source files. Only used for core libraries
+ * like the bootstrapping code and the stl. */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#define BUFSIZE 1024
+#define PERLINE 10
+
+int main(int argc, const char **argv) {
+
+	static const char hex[] = "0123456789ABCDEF";
+	char buf[BUFSIZE];
+	size_t bytesRead = 0;
+	int32_t totalRead = 0;
+	int lineIndex = 0;
+	int line = 0;
+
+	if (argc != 4) {
+		fprintf(stderr, "Usage: %s infile outfile symbol\n", argv[0]);
+		return 1;
+	}
+
+	/* Open the files */
+	FILE *in = fopen(argv[1], "rb");
+	FILE *out = fopen(argv[2], "wb");
+
+	/* Check if files open successfully */
+	if (in == NULL) {
+		fprintf(stderr, "Could not open input file %s\n", argv[1]);
+		return 1;
+	} else if (out == NULL) {
+		fprintf(stderr, "Could not open output file %s\n", argv[2]);
+		return 1;
+	}
+
+	/* Write the header */
+	fprintf(out, "/* Auto generated - DO NOT EDIT */\n\n#include <stdint.h>\n\n");
+	fprintf(out, "static const unsigned char bytes[] = {");
+
+	/* Read in chunks from buffer */
+	while ((bytesRead = fread(buf, 1, sizeof(buf), in)) > 0) {
+		size_t i;
+		totalRead += bytesRead;
+		for (i = 0; i < bytesRead; ++i) {
+			int byte = ((uint8_t *)buf) [i];
+
+			/* Write the byte */
+			if (lineIndex++ == 0) {
+				if (line++)
+					fputc(',', out);
+				fputs("\n\t", out);
+			} else {
+				fputs(", ", out);
+			}
+			fputs("0x", out);
+			fputc(hex[byte >> 4], out);
+			fputc(hex[byte & 0xF], out);
+
+			/* Make line index wrap */
+			if (lineIndex >= PERLINE)
+				lineIndex = 0;
+
+		}
+  	}
+
+  	/* Write the tail */
+	fputs("\n};\n\n", out);
+
+	fprintf(out, "const unsigned char *%s = bytes;\n\n", argv[3]);
+
+    /* Write chunk size */
+	fprintf(out, "int32_t %s_size = %d;\n", argv[3], totalRead);
+
+	/* Close the file handles */
+	fclose(in);
+	fclose(out);
+
+	return 0;
+}