From aa7e089fdc0e8095f6790ec53ccad0472573de79 Mon Sep 17 00:00:00 2001 From: Ian Lance Taylor Date: Fri, 2 Aug 2013 17:01:43 +0000 Subject: [PATCH] compiler: Always put descriptor wrappers in their own section. This lets the linker GC them. From-SVN: r201442 --- gcc/go/gofrontend/gogo.cc | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/gcc/go/gofrontend/gogo.cc b/gcc/go/gofrontend/gogo.cc index 6ae72b6a1c9..0b69d5d9887 100644 --- a/gcc/go/gofrontend/gogo.cc +++ b/gcc/go/gofrontend/gogo.cc @@ -3582,6 +3582,12 @@ Function::make_descriptor_wrapper(Gogo* gogo, Named_object* no, Named_object* dno = gogo->start_function(name, new_fntype, false, loc); dno->func_value()->is_descriptor_wrapper_ = true; + // Put the wrapper in a unique section so that it can be discarded + // by the linker if it is not needed. Every top-level function will + // get a wrapper, in case there is a reference other than a call + // from some other package, but most will not need one. + dno->func_value()->set_in_unique_section(); + gogo->start_block(loc); Expression* fn = Expression::make_func_reference(no, NULL, loc);