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Fix exporting Env callback symbols

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Paweł Bylica 2014-12-04 11:24:22 +01:00
parent 7db676c012
commit b8e0ad1fd4
2 changed files with 13 additions and 12 deletions
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18
libevmjit-cpp/Ext.cpp → libevmjit-cpp/Env.cpp
View file

@ -11,11 +11,6 @@
#include "../libevmjit/Utils.h"
namespace dev
{
namespace eth
{
extern "C"
{
#ifdef _MSC_VER
@ -24,7 +19,10 @@ extern "C"
#define EXPORT
#endif
using namespace jit;
using namespace dev;
using namespace dev::eth;
using jit::i256;
using jit::eth2llvm;
EXPORT void ext_store(ExtVMFace* _env, i256* _index, i256* o_value)
{
@ -44,13 +42,12 @@ extern "C"
_env->setStore(index, value); // Interface uses native endianness
}
EXPORT void ext_calldataload(ExtVMFace* _env, i256* _index, i256* o_value)
EXPORT void ext_calldataload(ExtVMFace* _env, i256* _index, ::byte* o_value)
{
auto index = static_cast<size_t>(llvm2eth(*_index));
assert(index + 31 > index); // TODO: Handle large index
auto b = reinterpret_cast<byte*>(o_value);
for (size_t i = index, j = 0; i <= index + 31; ++i, ++j)
b[j] = i < _env->data.size() ? _env->data[i] : 0; // Keep Big Endian
o_value[j] = i < _env->data.size() ? _env->data[i] : 0; // Keep Big Endian
// TODO: It all can be done by adding padding to data or by using min() algorithm without branch
}
@ -209,6 +206,3 @@ extern "C"
}
}
}
}

7
libevmjit-cpp/VM.cpp
View file

@ -65,3 +65,10 @@ bytesConstRef VM::go(ExtVMFace& _ext, OnOpFunc const&, uint64_t)
}
}
}
namespace
{
// MSVS linker ignores export symbols in Env.cpp if nothing point at least one of them
extern "C" void ext_store();
void linkerWorkaround() { ext_store(); }
}