reset errno to zero on entry to the application's main function. This fixes
MultiSource/Applications/minisat in the JIT.
Note that the libsystem stuff should ideally never modify errno. :(
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@36508 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/tools/lli/lli.cpp b/tools/lli/lli.cpp
index 225180b..89e4be6 100644
--- a/tools/lli/lli.cpp
+++ b/tools/lli/lli.cpp
@@ -28,7 +28,7 @@
#include "llvm/System/Process.h"
#include "llvm/System/Signals.h"
#include <iostream>
-
+#include <cerrno>
using namespace llvm;
namespace {
@@ -128,6 +128,10 @@
// function later on to make an explicit call, so get the function now.
Constant *Exit = Mod->getOrInsertFunction("exit", Type::VoidTy,
Type::Int32Ty, NULL);
+
+ // Reset errno to zero on entry to main.
+ errno = 0;
+
// Run static constructors.
EE->runStaticConstructorsDestructors(false);