From: Joel Rosdahl <joel@rosdahl.net>
Date: Sat, 9 Nov 2024 20:53:07 +0000 (+0100)
Subject: fix: Add support for Clang -frandomize-layout-seed-file option
X-Git-Tag: v4.11~44
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=18aeedc6b24aa7be7c5bd701e372ab2727d8aa7e;p=thirdparty%2Fccache.git

fix: Add support for Clang -frandomize-layout-seed-file option

Fixes #1528.
---

diff --git a/src/ccache/ccache.cpp b/src/ccache/ccache.cpp
index b23e731a..efc833ed 100644
--- a/src/ccache/ccache.cpp
+++ b/src/ccache/ccache.cpp
@@ -1823,6 +1823,18 @@ hash_argument(const Context& ctx,
     return {};
   }
 
+  static const std::string_view frandomize_layout_seed_file =
+    "-frandomize-layout-seed-file=";
+  if (util::starts_with(args[i], frandomize_layout_seed_file)) {
+    hash.hash_delimiter(frandomize_layout_seed_file);
+    auto file = args[i].substr(frandomize_layout_seed_file.length());
+    if (!hash_binary_file(ctx, hash, file)) {
+      LOG("Failed to hash {}", file);
+      return tl::unexpected(Statistic::bad_input_file);
+    }
+    return {};
+  }
+
   // When using the preprocessor, some arguments don't contribute to the hash.
   // The theory is that these arguments will change the output of -E if they are
   // going to have any effect at all. For precompiled headers this might not be