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LibJS/JIT: Record machine code location to bytecode location mapping

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This commit is contained in:
Simon Wanner 2023-10-30 19:03:09 +01:00 • committed by Andreas Kling
parent cf93e56833
commit 9f78e56823
3 changed files with 37 additions and 4 deletions
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12
Userland/Libraries/LibJS/JIT/NativeExecutable.h
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@ -12,12 +12,21 @@
namespace JS::JIT {
struct BytecodeMapping {
size_t native_offset;
size_t block_index;
size_t bytecode_offset;
// Special block index for labels outside any blocks.
static constexpr auto EXECUTABLE = NumericLimits<size_t>::max();
};
class NativeExecutable {
AK_MAKE_NONCOPYABLE(NativeExecutable);
AK_MAKE_NONMOVABLE(NativeExecutable);
public:
NativeExecutable(void* code, size_t size);
NativeExecutable(void* code, size_t size, Vector<BytecodeMapping>);
~NativeExecutable();
void run(VM&) const;
@ -26,6 +35,7 @@ public:
private:
void* m_code { nullptr };
size_t m_size { 0 };
Vector<BytecodeMapping> m_mapping;
};
}