1  /*
       2   * Check decoding of riscv_flush_icache syscall.
       3   *
       4   * Copyright (c) 2018-2019 The strace developers.
       5   * All rights reserved.
       6   *
       7   * SPDX-License-Identifier: GPL-2.0-or-later
       8   */
       9  
      10  #include "tests.h"
      11  
      12  
      13  #include "scno.h"
      14  
      15  #ifdef __NR_riscv_flush_icache
      16  
      17  # include <stdint.h>
      18  # include <stdio.h>
      19  # include <unistd.h>
      20  
      21  int main(void)
      22  {
      23  	static struct {
      24  		kernel_ulong_t addr;
      25  		const char *str;
      26  	} addrs[] = {
      27  		{ (kernel_ulong_t) (uintptr_t) ARG_STR(NULL) },
      28  		{ (kernel_ulong_t) 0xbadc0deddeadf157ULL,
      29  			sizeof(kernel_ulong_t) == 8 ? "0xbadc0deddeadf157" :
      30  			"0xdeadf157" },
      31  	};
      32  	static struct {
      33  		kernel_ulong_t val;
      34  		const char *str;
      35  	} flags[] = {
      36  		{ ARG_STR(0) },
      37  		{ 1, "SYS_RISCV_FLUSH_ICACHE_LOCAL" },
      38  		{ (kernel_ulong_t) 0xfacefeedfffffffeULL,
      39  			sizeof(kernel_ulong_t) == 8 ?
      40  			"0xfacefeedfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" :
      41  			"0xfffffffe /* SYS_RISCV_FLUSH_ICACHE_??? */" },
      42  		{ (kernel_ulong_t) 0xfacefeedffffffffULL,
      43  			sizeof(kernel_ulong_t) == 8 ?
      44  			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfacefeedfffffffe" :
      45  			"SYS_RISCV_FLUSH_ICACHE_LOCAL|0xfffffffe" },
      46  	};
      47  
      48  	for (size_t i = 0; i < ARRAY_SIZE(addrs); i++) {
      49  		for (size_t j = 0; j < ARRAY_SIZE(addrs); j++) {
      50  			for (size_t k = 0; k < ARRAY_SIZE(flags); k++) {
      51  				long rc = syscall(__NR_riscv_flush_icache,
      52  						  addrs[i].addr,
      53  						  addrs[j].addr,
      54  						  flags[k].val);
      55  
      56  				printf("riscv_flush_icache(%s, %s, %s) = %s\n",
      57  				       addrs[i].str, addrs[j].str, flags[k].str,
      58  				       sprintrc(rc));
      59  			}
      60  		}
      61  	}
      62  
      63  	puts("+++ exited with 0 +++");
      64  
      65  	return 0;
      66  }
      67  
      68  #else
      69  
      70  SKIP_MAIN_UNDEFINED("__NR_riscv_flush_icache");
      71  
      72  #endif