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69 lines
1.6 KiB
C
69 lines
1.6 KiB
C
/**
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* @file jit.h
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* @brief Just-in-time compilation support.
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* @author plutoo
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* @copyright libnx Authors
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*/
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#pragma once
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#include "../types.h"
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/// JIT implementation type.
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typedef enum {
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JitType_CodeMemory, ///< JIT supported using svcSetProcessMemoryPermission
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JitType_JitMemory, ///< JIT supported using [4.0.0+] code-memory syscalls (this isn't usable on [5.0.0+] so JitType_CodeMemory is used instead).
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} JitType;
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/// JIT buffer object.
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typedef struct {
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JitType type;
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size_t size;
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void* src_addr;
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void* rx_addr;
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void* rw_addr;
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bool is_executable;
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Handle handle;
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} Jit;
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/**
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* @brief Creates a JIT buffer.
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* @param j JIT buffer.
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* @param size Size of the JIT buffer.
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* @return Result code.
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*/
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Result jitCreate(Jit* j, size_t size);
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/**
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* @brief Transition a JIT buffer to have writable permission.
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* @param j JIT buffer.
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* @return Result code.
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*/
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Result jitTransitionToWritable(Jit* j);
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/**
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* @brief Transition a JIT buffer to have executable permission.
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* @param j JIT buffer.
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* @return Result code.
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*/
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Result jitTransitionToExecutable(Jit* j);
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/**
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* @brief Destroys a JIT buffer.
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* @param j JIT buffer.
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* @return Result code.
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*/
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Result jitClose(Jit* j);
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/**
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* @brief Gets the address of the writable memory alias of a JIT buffer.
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* @param j JIT buffer.
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* @return Pointer to alias of the JIT buffer that can be written to.
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*/
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void* jitGetRwAddr(Jit* j);
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/**
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* @brief Gets the address of the executable memory alias of a JIT buffer.
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* @param j JIT buffer.
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* @return Pointer to alias of the JIT buffer that can be executed.
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*/
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void* jitGetRxAddr(Jit* j);
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