From 64faca9b849cf34244d319e1d473dbdd6b8367b5 Mon Sep 17 00:00:00 2001 From: Peter Collingbourne Date: Tue, 30 Dec 2014 22:52:33 +0000 Subject: [PATCH] RTDyldMemoryManager.cpp: Make the reference to __morestack weak. This fixes the DSO build for now. Eventually we should develop some other mechanism to make this work correctly with DSOs. llvm-svn: 225014 --- llvm/lib/ExecutionEngine/RTDyldMemoryManager.cpp | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/llvm/lib/ExecutionEngine/RTDyldMemoryManager.cpp b/llvm/lib/ExecutionEngine/RTDyldMemoryManager.cpp index 975954b..2a5e4f8 100644 --- a/llvm/lib/ExecutionEngine/RTDyldMemoryManager.cpp +++ b/llvm/lib/ExecutionEngine/RTDyldMemoryManager.cpp @@ -13,6 +13,7 @@ #include "llvm/Config/config.h" #include "llvm/ExecutionEngine/RTDyldMemoryManager.h" +#include "llvm/Support/Compiler.h" #include "llvm/Support/DynamicLibrary.h" #include "llvm/Support/ErrorHandling.h" #include @@ -212,7 +213,7 @@ ARM_MATH_IMPORTS(ARM_MATH_DECL) #if defined(__linux__) && defined(__GLIBC__) && \ (defined(__i386__) || defined(__x86_64__)) -extern "C" void __morestack(); +extern "C" LLVM_ATTRIBUTE_WEAK void __morestack(); #endif uint64_t @@ -241,7 +242,8 @@ RTDyldMemoryManager::getSymbolAddressInProcess(const std::string &Name) { #if defined(__i386__) || defined(__x86_64__) // __morestack lives in libgcc, a static library. - if (Name == "__morestack") return (uint64_t)&__morestack; + if (&__morestack && Name == "__morestack") + return (uint64_t)&__morestack; #endif #endif // __linux__ && __GLIBC__ -- 2.7.4