diff options
| author | Alex Beregszaszi <alex@rtfs.hu> | 2016-12-02 21:18:39 +0800 |
|---|---|---|
| committer | Alex Beregszaszi <alex@rtfs.hu> | 2016-12-02 21:18:39 +0800 |
| commit | 86d54c02cdebba32a6a8fba1d74bad17667d46cd (patch) | |
| tree | b914f7c105b618c48e6da10a46cc7572fcd44203 | |
| parent | 3a01a87afe3468421f31aa5097796dcc88e37e26 (diff) | |
| download | dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar.gz dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar.bz2 dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar.lz dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar.xz dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.tar.zst dexon-solidity-86d54c02cdebba32a6a8fba1d74bad17667d46cd.zip | |
Throw if calling the identity precompile (memoryCopy) failed
| -rw-r--r-- | Changelog.md | 1 | ||||
| -rw-r--r-- | libsolidity/codegen/CompilerUtils.cpp | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/Changelog.md b/Changelog.md index 1058fdf5..58cf1484 100644 --- a/Changelog.md +++ b/Changelog.md @@ -5,6 +5,7 @@ Features: * Optimizer: Some dead code elimination. Bugfixes: + * Code generator: throw if calling the identity precompile failed during memory (array) copying. * Type checker: string literals that are not valid UTF-8 cannot be converted to string type ### 0.4.6 (2016-11-22) diff --git a/libsolidity/codegen/CompilerUtils.cpp b/libsolidity/codegen/CompilerUtils.cpp index d5361ac6..a8299626 100644 --- a/libsolidity/codegen/CompilerUtils.cpp +++ b/libsolidity/codegen/CompilerUtils.cpp @@ -312,7 +312,8 @@ void CompilerUtils::memoryCopy() m_context << Instruction::DIV << u256(c_identityWordGas) << Instruction::MUL; m_context << u256(c_identityGas) << Instruction::ADD; m_context << Instruction::CALL; - m_context << Instruction::POP; // ignore return value + m_context << Instruction::ISZERO; + m_context.appendConditionalJumpTo(m_context.errorTag()); } void CompilerUtils::splitExternalFunctionType(bool _leftAligned) |