tests/riscv_flush_icache.c

/*
 * Check decoding of riscv_flush_icache syscall.
 *
 * Copyright (c) 2018 The strace developers.
 * 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.
 * 3. The name of the author may not be used to endorse or promote products
 *    derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
 */

#include "tests.h"

#include <asm/unistd.h>

#include "scno.h"

#ifdef __NR_riscv_flush_icache

# include <stdint.h>
# include <stdio.h>
# include <unistd.h>

int main(void)
{
	static struct {
		kernel_ulong_t addr;
		const char *str;
	} addrs[] = {
		{ (kernel_ulong_t) (uintptr_t) ARG_STR(NULL) },
		{ (kernel_ulong_t) 0xbadc0deddeadf157ULL,
			sizeof(kernel_ulong_t) == 8 ? "0xbadc0deddeadf157" :
			"0xdeadf157" },
	};
	static struct {
		kernel_ulong_t val;
		const char *str;
	} flags[] = {
		{ ARG_STR(0) },
		{ 1, "SYS_RISCV_FLUSH_ICACHE_LOCAL" },
		{ (kernel_ulong_t) 0xfacefeedfffffffeULL,
			sizeof(kernel_ulong_t) == 8 ?
			"0xfacefeedfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" :
			"0xfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" },
		{ (kernel_ulong_t) 0xfacefeedffffffffULL,
			sizeof(kernel_ulong_t) == 8 ?
			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfacefeedfffffffe" :
			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfffffffe" },
	};

	for (size_t i = 0; i < ARRAY_SIZE(addrs); i++) {
		for (size_t j = 0; j < ARRAY_SIZE(addrs); j++) {
			for (size_t k = 0; k < ARRAY_SIZE(flags); k++) {
				long rc = syscall(__NR_riscv_flush_icache,
						  addrs[i].addr,
						  addrs[j].addr,
						  flags[k].val);

				printf("riscv_flush_icache(%s, %s, %s) = %s\n",
				       addrs[i].str, addrs[j].str, flags[k].str,
				       sprintrc(rc));
			}
		}
	}

	puts("+++ exited with 0 +++");

	return 0;
}

#else

SKIP_MAIN_UNDEFINED("__NR_riscv_flush_icache");

#endif