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Diffstat (limited to 'src/crypto/CryptonightR_JIT.h')
-rw-r--r-- | src/crypto/CryptonightR_JIT.h | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/src/crypto/CryptonightR_JIT.h b/src/crypto/CryptonightR_JIT.h new file mode 100644 index 000000000..cb32c3a79 --- /dev/null +++ b/src/crypto/CryptonightR_JIT.h @@ -0,0 +1,22 @@ +#ifndef CRYPTONIGHTR_JIT_H +#define CRYPTONIGHTR_JIT_H + +// Minimalistic JIT code generator for random math sequence in CryptonightR +// +// Usage: +// - Allocate writable and executable memory +// - Call v4_generate_JIT_code with "buf" pointed to memory allocated on previous step +// - Call the generated code instead of "v4_random_math(code, r)", omit the "code" parameter + +typedef void (*v4_random_math_JIT_func)(uint32_t* r) +#if defined __i386 || defined __x86_64__ +__attribute__((sysv_abi)) +#endif +; + +// Given the random math sequence, generates machine code (x86-64) for it +// Returns 0 if code was generated successfully +// Returns -1 if provided buffer was too small +int v4_generate_JIT_code(const struct V4_Instruction* code, v4_random_math_JIT_func buf, const size_t buf_size); + +#endif // CRYPTONIGHTR_JIT_H |