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RTDyldMemoryManager.cpp: Make the reference to __morestack weak.

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This fixes the DSO build for now. Eventually we should develop some
other mechanism to make this work correctly with DSOs.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@225014 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Peter Collingbourne 2014-12-30 22:52:33 +00:00
parent 1d68fc5021
commit 3a071284e0
1 changed files with 4 additions and 2 deletions
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6
lib/ExecutionEngine/RTDyldMemoryManager.cpp
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@ -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 <cstdlib>
@ -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__