1 files changed, 57 insertions, 0 deletions

diff --git a/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
new file mode 100644
index 00000000000..88c9d963be8
--- /dev/null
+++ b/arch/mips/boot/compressed/calc_vmlinuz_load_addr.c
@@ -0,0 +1,57 @@
+/*
+ * Copyright (C) 2010 "Wu Zhangjin" <wuzhangjin@gmail.com>
+ *
+ * This program is free software; you can redistribute  it and/or modify it
+ * under  the terms of  the GNU General  Public License as published by the
+ * Free Software Foundation;  either version 2 of the  License, or (at your
+ * option) any later version.
+ */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char *argv[])
+{
+        struct stat sb;
+        uint64_t vmlinux_size, vmlinux_load_addr, vmlinuz_load_addr;
+
+        if (argc != 3) {
+                fprintf(stderr, "Usage: %s <pathname> <vmlinux_load_addr>\n",
+                                argv[0]);
+                return EXIT_FAILURE;
+        }
+
+        if (stat(argv[1], &sb) == -1) {
+                perror("stat");
+                return EXIT_FAILURE;
+        }
+
+        /* Convert hex characters to dec number */
+        errno = 0;
+        if (sscanf(argv[2], "%llx", &vmlinux_load_addr) != 1) {
+                if (errno != 0)
+                        perror("sscanf");
+                else
+                        fprintf(stderr, "No matching characters\n");
+
+                return EXIT_FAILURE;
+        }
+
+        vmlinux_size = (uint64_t)sb.st_size;
+        vmlinuz_load_addr = vmlinux_load_addr + vmlinux_size;
+
+        /*
+         * Align with 16 bytes: "greater than that used for any standard data
+         * types by a MIPS compiler." -- See MIPS Run Linux (Second Edition).
+         */
+
+        vmlinuz_load_addr += (16 - vmlinux_size % 16);
+
+        printf("0x%llx\n", vmlinuz_load_addr);
+
+        return EXIT_SUCCESS;
+}