First part of the FIPS module.

Change-Id: Ic3a91ccd2c8cdc364740f256fdb8a7ff66177947
Reviewed-on: https://boringssl-review.googlesource.com/14506
Reviewed-by: Adam Langley <agl@google.com>
Commit-Queue: Adam Langley <agl@google.com>
diff --git a/util/diff_asm.go b/util/diff_asm.go
index bc9363f..fa255c0 100644
--- a/util/diff_asm.go
+++ b/util/diff_asm.go
@@ -30,6 +30,7 @@
 )
 
 func mapName(path string) string {
+	path = strings.Replace(path, filepath.FromSlash("/fipsmodule/"), string(filepath.Separator), 1)
 	switch filepath.ToSlash(path) {
 	case "crypto/cipher/asm/chacha20_poly1305_x86_64.pl", "crypto/rand/asm/rdrand-x86_64.pl":
 		return ""