2023-08-15 13:12:21 +00:00
|
|
|
// SPDX-FileCopyrightText: 2021 Connor McLaughlin <stenzek@gmail.com>
|
|
|
|
|
// SPDX-License-Identifier: (GPL-3.0 OR CC-BY-NC-ND-4.0)
|
|
|
|
|
|
|
|
|
|
#pragma once
|
|
|
|
|
|
|
|
|
|
#include "types.h"
|
|
|
|
|
|
|
|
|
|
#include <cstddef>
|
|
|
|
|
#include <cstdint>
|
|
|
|
|
|
|
|
|
|
struct fastjmp_buf
|
|
|
|
|
{
|
|
|
|
|
#if defined(_WIN32) && defined(_M_AMD64)
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 240;
|
|
|
|
|
#elif defined(_M_ARM64) || defined(__aarch64__)
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 168;
|
2023-10-02 11:34:34 +00:00
|
|
|
#elif defined(_M_ARM) || defined(__arm__)
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 112;
|
2023-08-15 13:12:21 +00:00
|
|
|
#elif defined(__x86_64__)
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 64;
|
|
|
|
|
#elif defined(_M_IX86) || defined(__i386__)
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 24;
|
|
|
|
|
#elif defined(__riscv) && __riscv_xlen == 64
|
|
|
|
|
static constexpr std::size_t BUF_SIZE = 208;
|
|
|
|
|
#else
|
|
|
|
|
#error Unknown architecture.
|
|
|
|
|
#endif
|
|
|
|
|
|
|
|
|
|
alignas(16) std::uint8_t buf[BUF_SIZE];
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
extern "C" {
|
|
|
|
|
int fastjmp_set(fastjmp_buf* buf);
|
|
|
|
|
[[noreturn]] void fastjmp_jmp(const fastjmp_buf* buf, int ret);
|
|
|
|
|
}
|
