AK: Update mmap name for MappedFiles on SerenityOS

Looking at process memory maps is a lot nicer when you can see the paths
of MappedFile mappings.

1 files changed, 6 insertions, 0 deletions

diff --git a/AK/MappedFile.cpp b/AK/MappedFile.cpp
index 9c3199d0fe..3957d042a3 100644
--- a/AK/MappedFile.cpp
+++ b/AK/MappedFile.cpp
@@ -37,6 +37,12 @@ Result<NonnullRefPtr<MappedFile>, OSError> MappedFile::map(const String& path)
     if (ptr == MAP_FAILED)
         return OSError(errno);
 
+#ifdef __serenity__
+    if (set_mmap_name(ptr, size, path.characters()) < 0) {
+        perror("set_mmap_name");
+    }
+#endif
+
     return adopt_ref(*new MappedFile(ptr, size));
 }