From aab3c0cb077f741af3447cc030c28bedd23b491c Mon Sep 17 00:00:00 2001 From: Bill Wendling Date: Fri, 13 Apr 2012 01:06:27 +0000 Subject: [PATCH] Code-gen may inject code into the IR before it emits the ASM. The linker obviously cannot know that this code is present, let alone used. So prevent the internalize pass from internalizing those global values which code-gen may insert. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@154645 91177308-0d34-0410-b5e6-96231b3b80d8 --- lib/Transforms/IPO/Internalize.cpp | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/lib/Transforms/IPO/Internalize.cpp b/lib/Transforms/IPO/Internalize.cpp index af5b9bd99e4..cd29e7a7a7d 100644 --- a/lib/Transforms/IPO/Internalize.cpp +++ b/lib/Transforms/IPO/Internalize.cpp @@ -122,6 +122,9 @@ bool InternalizePass::runOnModule(Module &M) { bool Changed = false; + // Never internalize functions which code-gen might insert. + ExternalNames.insert("__stack_chk_fail"); + // Mark all functions not in the api as internal. // FIXME: maybe use private linkage? for (Module::iterator I = M.begin(), E = M.end(); I != E; ++I) @@ -150,6 +153,9 @@ bool InternalizePass::runOnModule(Module &M) { ExternalNames.insert("llvm.global_dtors"); ExternalNames.insert("llvm.global.annotations"); + // Never internalize symbols code-gen inserts. + ExternalNames.insert("__stack_chk_guard"); + // Mark all global variables with initializers that are not in the api as // internal as well. // FIXME: maybe use private linkage? -- 2.34.1