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authorJeff Cohen <jeffc@jolt-lang.org>2005-10-23 04:37:20 +0000
committerJeff Cohen <jeffc@jolt-lang.org>2005-10-23 04:37:20 +0000
commit66c5fd6c537269eaef0f630fa14360dcaff6a295 (patch)
tree90ec39b9c89faa77f29186419eb3f67def5383b1 /lib/Debugger
parent8b7f14e970d87eb52ac34e443bb508a403a2ac0d (diff)
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When a function takes a variable number of pointer arguments, with a zero
pointer marking the end of the list, the zero *must* be cast to the pointer type. An un-cast zero is a 32-bit int, and at least on x86_64, gcc will not extend the zero to 64 bits, thus allowing the upper 32 bits to be random junk. The new END_WITH_NULL macro may be used to annotate a such a function so that GCC (version 4 or newer) will detect the use of un-casted zero at compile time. git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@23888 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/Debugger')
-rw-r--r--lib/Debugger/UnixLocalInferiorProcess.cpp3
1 files changed, 2 insertions, 1 deletions
diff --git a/lib/Debugger/UnixLocalInferiorProcess.cpp b/lib/Debugger/UnixLocalInferiorProcess.cpp
index 1731bea..6758e2d 100644
--- a/lib/Debugger/UnixLocalInferiorProcess.cpp
+++ b/lib/Debugger/UnixLocalInferiorProcess.cpp
@@ -924,7 +924,8 @@ static void runChild(Module *M, const std::vector<std::string> &Arguments,
// If the program didn't explicitly call exit, call exit now, for the program.
// This ensures that any atexit handlers get called correctly.
- Function *Exit = M->getOrInsertFunction("exit", Type::VoidTy, Type::IntTy, 0);
+ Function *Exit = M->getOrInsertFunction("exit", Type::VoidTy, Type::IntTy,
+ (Type *)0);
std::vector<GenericValue> Args;
GenericValue ResultGV;