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authordim <dim@FreeBSD.org>2011-10-20 21:10:27 +0000
committerdim <dim@FreeBSD.org>2011-10-20 21:10:27 +0000
commit7b3392326c40c3c20697816acae597ba7b3144eb (patch)
tree2cbcf22585e99f8a87d12d5ff94f392c0d266819 /lib/Support/MemoryObject.cpp
parent1176aa52646fe641a4243a246aa7f960c708a274 (diff)
downloadFreeBSD-src-7b3392326c40c3c20697816acae597ba7b3144eb.zip
FreeBSD-src-7b3392326c40c3c20697816acae597ba7b3144eb.tar.gz
Vendor import of llvm release_30 branch r142614:
http://llvm.org/svn/llvm-project/llvm/branches/release_30@142614
Diffstat (limited to 'lib/Support/MemoryObject.cpp')
-rw-r--r--lib/Support/MemoryObject.cpp7
1 files changed, 5 insertions, 2 deletions
diff --git a/lib/Support/MemoryObject.cpp b/lib/Support/MemoryObject.cpp
index 91e3ecd..b20ab89 100644
--- a/lib/Support/MemoryObject.cpp
+++ b/lib/Support/MemoryObject.cpp
@@ -19,8 +19,11 @@ int MemoryObject::readBytes(uint64_t address,
uint64_t* copied) const {
uint64_t current = address;
uint64_t limit = getBase() + getExtent();
-
- while (current - address < size && current < limit) {
+
+ if (current + size > limit)
+ return -1;
+
+ while (current - address < size) {
if (readByte(current, &buf[(current - address)]))
return -1;
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