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https://github.com/luau-lang/luau.git
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ce9414cb98
* AST queries at position where function name is will now return AstExprLocal * Lexer performance has been slightly improved * Fixed incorrect string singleton autocomplete suggestions (fixes #858) * Improved parsing error messages * Fixed crash on null pointer access in unification (fixes #1017) * Native code support is enabled by default and `native=1` (make)/`LUAU_NATIVE` (CMake)/`-DLUA_CUSTOM_EXECUTION` configuration is no longer required New typechecker: * New subtyping check can now handle generic functions and tables (including those that contain cycles) Native code generation: * Loops with non-numeric parameters are now handled by VM to streamline native code * Array size check can be optimized away in SETLIST * On failure, CodeGen::compile returns a reason * Fixed clobbering of non-volatile xmm registers on Windows
55 lines
1.6 KiB
C++
55 lines
1.6 KiB
C++
// This file is part of the Luau programming language and is licensed under MIT License; see LICENSE.txt for details
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#pragma once
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#include "Luau/RegisterX64.h"
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#include "UnwindBuilder.h"
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#include <vector>
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namespace Luau
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{
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namespace CodeGen
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{
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struct UnwindFunctionDwarf2
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{
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uint32_t beginOffset;
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uint32_t endOffset;
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uint32_t fdeEntryStartPos;
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};
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class UnwindBuilderDwarf2 : public UnwindBuilder
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{
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public:
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void setBeginOffset(size_t beginOffset) override;
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size_t getBeginOffset() const override;
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void startInfo(Arch arch) override;
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void startFunction() override;
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void finishFunction(uint32_t beginOffset, uint32_t endOffset) override;
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void finishInfo() override;
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void prologueA64(uint32_t prologueSize, uint32_t stackSize, std::initializer_list<A64::RegisterA64> regs) override;
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void prologueX64(uint32_t prologueSize, uint32_t stackSize, bool setupFrame, std::initializer_list<X64::RegisterX64> gpr,
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const std::vector<X64::RegisterX64>& simd) override;
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size_t getSize() const override;
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size_t getFunctionCount() const override;
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void finalize(char* target, size_t offset, void* funcAddress, size_t funcSize) const override;
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private:
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size_t beginOffset = 0;
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std::vector<UnwindFunctionDwarf2> unwindFunctions;
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static const unsigned kRawDataLimit = 1024;
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uint8_t rawData[kRawDataLimit];
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uint8_t* pos = rawData;
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// We will remember the FDE location to write some of the fields like entry length, function start and size later
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uint8_t* fdeEntryStart = nullptr;
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};
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} // namespace CodeGen
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} // namespace Luau
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