[PATCH] Make the __morestack function available to the JIT memory manager under Linux.

[Peter Collingbourne]

REPOSITORY
  rL LLVM

http://reviews.llvm.org/D6788

Files:
  llvm/trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp

Index: llvm/trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp
===================================================================
--- llvm/trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp
+++ llvm/trunk/lib/ExecutionEngine/RTDyldMemoryManager.cpp
@@ -210,6 +210,10 @@
 #undef ARM_MATH_DECL
 #endif
 
+#if defined(__linux__) && defined(__GLIBC__)
+extern "C" void __morestack();
+#endif
+
 uint64_t
 RTDyldMemoryManager::getSymbolAddressInProcess(const std::string &Name) {
   // This implementation assumes that the host program is the target.
@@ -233,6 +237,9 @@
   if (Name == "lstat64") return (uint64_t)&lstat64;
   if (Name == "atexit") return (uint64_t)&atexit;
   if (Name == "mknod") return (uint64_t)&mknod;
+
+  // __morestack lives in libgcc, a static library.
+  if (Name == "__morestack") return (uint64_t)&__morestack;
 #endif // __linux__ && __GLIBC__
   
   // See ARM_MATH_IMPORTS definition for explanation

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