zig

commit 839bdfdc93b1d2a2a4ed6f7c9ca3155323242d82 (tree)
parent 7bffa6f1fb9148aed65f5ca55156dbb0e766c92e
Author: Andrew Kelley <andrew@ziglang.org>
Date:   Tue, 29 Sep 2020 21:48:50 -0700

link.Coff: skip redundant (and invalid) copy to same path

Diffstat:
M
src/link/Coff.zig
 | 
6
+++++-

1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/link/Coff.zig b/src/link/Coff.zig
@@ -893,7 +893,11 @@ fn linkWithLLD(self: *Coff, comp: *Compilation) !void {
             // regarding eliding redundant object -> object transformations.
             return error.NoObjectsToLink;
         };
-        try fs.cwd().copyFile(the_object_path, fs.cwd(), full_out_path, .{});
+        // This can happen when using --enable-cache and using the stage1 backend. In this case
+        // we can skip the file copy.
+        if (!mem.eql(u8, the_object_path, full_out_path)) {
+            try fs.cwd().copyFile(the_object_path, fs.cwd(), full_out_path, .{});
+        }
     } else {
         // Create an LLD command line and invoke it.
         var argv = std.ArrayList([]const u8).init(self.base.allocator);