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Report failure if there are less bytes than requested in a MemoryObject.

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Before we just left the remaining bytes uninitialized. This is another step in making llvm valgrind-clean again.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@138705 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Benjamin Kramer
2011-08-27 07:45:46 +00:00
parent d326d3b3ef
commit f66f76c1a3
1 changed files with 5 additions and 2 deletions
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7
lib/Support/MemoryObject.cpp
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@@ -19,8 +19,11 @@ int MemoryObject::readBytes(uint64_t address,
uint64_t* copied) const { uint64_t* copied) const {
uint64_t current = address; uint64_t current = address;
uint64_t limit = getBase() + getExtent(); 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)])) if (readByte(current, &buf[(current - address)]))
return -1; return -1;