Forgot those ...

1 files changed, 70 insertions, 0 deletions

diff --git a/arch/arm/boot/tools/build.c b/arch/arm/boot/tools/build.c
new file mode 100644
index 000000000..ac1297564
--- /dev/null
+++ b/arch/arm/boot/tools/build.c
@@ -0,0 +1,70 @@
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <a.out.h>
+
+typedef unsigned char byte;
+typedef unsigned short word;
+typedef unsigned long u32;
+
+void die(const char * str, ...)
+{
+	va_list args;
+	va_start(args, str);
+	vfprintf(stderr, str, args);
+	fputc('\n', stderr);
+	exit (1);
+}
+
+int main(int argc, char **argv)
+{
+	void *data;
+	struct exec ex;
+	FILE *f;
+	int totlen;
+
+	if (argc < 2) {
+		fprintf(stderr, "Usage: build kernel-name\n");
+		exit(1);
+	}
+
+	f = fopen(argv[1], "rb");
+	if (!f)
+		die("Unable to open `%s': %m", argv[1]);
+
+	fread(&ex, 1, sizeof(ex), f);
+
+	if(N_MAGIC(ex) == ZMAGIC) {
+		fseek(f, 4096, SEEK_SET);
+		totlen = ex.a_text + ex.a_data;
+	} else
+	if(N_MAGIC(ex) == QMAGIC) {
+		unsigned long my_header;
+		
+		fseek(f, 4, SEEK_SET);
+
+		my_header = 0xea000006;
+
+		fwrite(&my_header, 4, 1, stdout);
+
+		totlen = ex.a_text + ex.a_data - 4;
+	} else {
+		fprintf(stderr, "Unacceptable a.out header on kernel\n");
+		fclose(f);
+		exit(1);
+	}
+
+	fprintf(stderr, "Kernel is %dk (%dk text, %dk data, %dk bss)\n",
+		(ex.a_text + ex.a_data + ex.a_bss)/1024,
+		 ex.a_text/1024, ex.a_data/1024, ex.a_bss/1024);
+
+	data = malloc(totlen);
+	fread(data, 1, totlen, f);
+	fwrite(data, 1, totlen, stdout);
+
+	free(data);
+	fclose(f);
+	fflush(stdout);
+	return 0;
+}