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| author | Justin Bogner <mail@justinbogner.com> | 2014-04-25 02:45:33 +0000 |
|---|---|---|
| committer | Justin Bogner <mail@justinbogner.com> | 2014-04-25 02:45:33 +0000 |
| commit | 38ac7e92d8a489cc24c8bb877db2468cb80b55e2 (patch) | |
| tree | 0f70bcfa1748a7f25cb7daf014ac5be7d4f3aaa8 /lib/ProfileData | |
| parent | b33022e1da567d52163b1b621f5746d10814232c (diff) | |
| download | llvm-38ac7e92d8a489cc24c8bb877db2468cb80b55e2.tar.gz llvm-38ac7e92d8a489cc24c8bb877db2468cb80b55e2.tar.bz2 llvm-38ac7e92d8a489cc24c8bb877db2468cb80b55e2.tar.xz | |
ProfileData: Treat missing function counts as malformed
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@207172 91177308-0d34-0410-b5e6-96231b3b80d8
Diffstat (limited to 'lib/ProfileData')
| -rw-r--r-- | lib/ProfileData/InstrProfReader.cpp | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/lib/ProfileData/InstrProfReader.cpp b/lib/ProfileData/InstrProfReader.cpp index 4f110a5712..12c3c8256b 100644 --- a/lib/ProfileData/InstrProfReader.cpp +++ b/lib/ProfileData/InstrProfReader.cpp @@ -101,6 +101,8 @@ error_code TextInstrProfReader::readNextRecord(InstrProfRecord &Record) { return error(instrprof_error::truncated); if ((Line++)->getAsInteger(10, NumCounters)) return error(instrprof_error::malformed); + if (NumCounters == 0) + return error(instrprof_error::malformed); // Read each counter and fill our internal storage with the values. Counts.clear(); @@ -210,8 +212,10 @@ RawInstrProfReader<IntPtrT>::readNextRecord(InstrProfRecord &Record) { // Get the raw data. StringRef RawName(getName(Data->NamePtr), swap(Data->NameSize)); - auto RawCounts = makeArrayRef(getCounter(Data->CounterPtr), - swap(Data->NumCounters)); + uint32_t NumCounters = swap(Data->NumCounters); + if (NumCounters == 0) + return error(instrprof_error::malformed); + auto RawCounts = makeArrayRef(getCounter(Data->CounterPtr), NumCounters); // Check bounds. auto *NamesStartAsCounter = reinterpret_cast<const uint64_t *>(NamesStart); |