riscv.h

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/*
 * Copyright © 2025, Niklas Haas
 * Copyright © 2018, VideoLAN and dav1d authors
 * Copyright © 2018, Two Orioles, LLC
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 *    list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 *    this list of conditions and the following disclaimer in the documentation
 *    and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
 
#ifndef CHECKASM_PLATFORM_RISCV_H
#define CHECKASM_PLATFORM_RISCV_H
 
CHECKASM_API void  checkasm_set_function(void *);
CHECKASM_API void *checkasm_checked_call_ptr(void);
 
#define checkasm_declare_impl(ret, ...) \
    ret (*checked_call)(__VA_ARGS__) = checkasm_checked_call_ptr()
 
#define checkasm_call_checked(func, ...)                                     \
    (checkasm_set_signal_handler_state(1),                                   \
     checkasm_push_stack_guard((uintptr_t[16]){ 0, 0 }),                     \
     checkasm_clobber_args(),                                                \
     checkasm_set_function(func),                                            \
     checked_call(__VA_ARGS__));                                             \
    checkasm_pop_stack_guard();                                              \
    checkasm_set_signal_handler_state(0)
#define CHECKASM_ALIGNMENT 16
 
CHECKASM_API void checkasm_clobber_args(void);
 
#endif /* CHECKASM_PLATFORM_RISCV_H */