1 files changed, 122 insertions, 0 deletions
diff --git a/scripts/hexdump.c b/scripts/hexdump.c
new file mode 100644
index 00000000..728afc33
--- /dev/null
+++ b/scripts/hexdump.c
@@ -0,0 +1,122 @@
+/* hexdump.c -- an "xxd -i" workalike for dumping binary files as source code */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+static int
+hexdump(FILE *fo, FILE *fi)
+{
+	int c, n;
+
+	n = 0;
+	c = fgetc(fi);
+	while (c != -1)
+	{
+		n += fprintf(fo, "%d,", c);
+		if (n > 72) {
+			fprintf(fo, "\n");
+			n = 0;
+		}
+		c = fgetc(fi);
+	}
+
+	return n;
+}
+
+int
+main(int argc, char **argv)
+{
+	FILE *fo;
+	FILE *fi;
+	char filename[256];
+	char *basename;
+	char *p;
+	int i, size;
+
+	if (argc < 3)
+	{
+		fprintf(stderr, "usage: hexdump output.c input.dat\n");
+		return 1;
+	}
+
+	fo = fopen(argv[1], "wb");
+	if (!fo)
+	{
+		fprintf(stderr, "hexdump: could not open output file '%s'\n", argv[1]);
+		return 1;
+	}
+
+	fprintf(fo, "#ifndef __STRICT_ANSI__\n");
+	fprintf(fo, "#if defined(__linux__) || defined(__FreeBSD__) || defined(__OpenBSD__)\n");
+	fprintf(fo, "#if !defined(__ICC) && !defined(__ANDROID__)\n");
+	fprintf(fo, "#define HAVE_INCBIN\n");
+	fprintf(fo, "#endif\n");
+	fprintf(fo, "#endif\n");
+	fprintf(fo, "#endif\n");
+
+	for (i = 2; i < argc; i++)
+	{
+		fi = fopen(argv[i], "rb");
+		if (!fi)
+		{
+			fclose(fo);
+			fprintf(stderr, "hexdump: could not open input file '%s'\n", argv[i]);
+			return 1;
+		}
+
+		basename = strrchr(argv[i], '/');
+		if (!basename)
+			basename = strrchr(argv[i], '\\');
+		if (basename)
+			basename++;
+		else
+			basename = argv[i];
+
+		if (strlen(basename) >= sizeof(filename))
+		{
+			fclose(fi);
+			fclose(fo);
+			fprintf(stderr, "hexdump: filename '%s' too long\n", basename);
+			return 1;
+		}
+
+		strcpy(filename, argv[i]);
+		for (p = filename; *p; ++p)
+		{
+			if (*p == '/' || *p == '.' || *p == '\\' || *p == '-')
+				*p = '_';
+		}
+
+		fseek(fi, 0, SEEK_END);
+		size = ftell(fi);
+		fseek(fi, 0, SEEK_SET);
+
+		fprintf(fo, "\n#ifdef HAVE_INCBIN\n");
+		fprintf(fo, "const int fz_%s_size = %d;\n", filename, size);
+		fprintf(fo, "extern const char fz_%s[];\n", filename);
+		fprintf(fo, "asm(\".section .rodata\");\n");
+		fprintf(fo, "asm(\".global fz_%s\");\n", filename);
+		fprintf(fo, "asm(\".type fz_%s STT_OBJECT\");\n", filename);
+		fprintf(fo, "asm(\".size fz_%s, %d\");\n", filename, size);
+		fprintf(fo, "asm(\".balign 64\");\n");
+		fprintf(fo, "asm(\"fz_%s:\");\n", filename);
+		fprintf(fo, "asm(\".incbin \\\"%s\\\"\");\n", argv[i]);
+		fprintf(fo, "#else\n");
+		fprintf(fo, "const int fz_%s_size = %d;\n", filename, size);
+		fprintf(fo, "const char fz_%s[] = {\n", filename);
+		hexdump(fo, fi);
+		fprintf(fo, "0};\n"); /* zero-terminate so we can hexdump text files into C strings */
+		fprintf(fo, "#endif\n");
+
+		fclose(fi);
+	}
+
+	if (fclose(fo))
+	{
+		fprintf(stderr, "hexdump: could not close output file '%s'\n", argv[1]);
+		return 1;
+	}
+
+	return 0;
+}