| /******************************************************************************/ |
| /* Copyright (c) Maxin John <maxin.john@gmail.com>, 2009 */ |
| /* LKML Reference: http://lkml.org/lkml/2009/4/9/203 */ |
| /* This program is free software; you can redistribute it and/or modify */ |
| /* it under the terms of the GNU General Public License as published by */ |
| /* the Free Software Foundation; either version 2 of the License, or */ |
| /* (at your option) any later version. */ |
| /* */ |
| /* This program is distributed in the hope that it will be useful, */ |
| /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ |
| /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See */ |
| /* the GNU General Public License for more details. */ |
| /* */ |
| /* You should have received a copy of the GNU General Public License */ |
| /* along with this program; if not, write to the Free Software */ |
| /* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ |
| /* */ |
| /******************************************************************************/ |
| /******************************************************************************/ |
| /* */ |
| /* File: cacheflush01.c */ |
| /* */ |
| /* Description: The cacheflush_check() syscall */ |
| /* Tests EINVAL error of cacheflush system call. */ |
| /* Its expected behaviour is cacheflush() should return -EINVAL */ |
| /* when cache parameter is not one of ICACHE, DCACHE, or BCACHE. */ |
| /* */ |
| /* Usage: <for command-line> */ |
| /* cacheflush01 [-c n] [-e][-i n] [-I x] [-p x] [-t] */ |
| /* where, -c n : Run n copies concurrently. */ |
| /* -e : Turn on errno logging. */ |
| /* -i n : Execute test n times. */ |
| /* -I x : Execute test for x seconds. */ |
| /* -P x : Pause for x seconds between iterations. */ |
| /* -t : Turn on syscall timing. */ |
| /* */ |
| /* Total Tests: 1 */ |
| /* */ |
| /* Test Name: cacheflush01 */ |
| /******************************************************************************/ |
| |
| #include <unistd.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <errno.h> |
| |
| /* cacheflush man page states that cacheflush() is only applicable to |
| * MIPS architecture -- regardless, it's a good negative test.. */ |
| |
| #ifndef ICACHE |
| #define ICACHE (1<<0) /* flush instruction cache */ |
| #endif |
| #ifndef DCACHE |
| #define DCACHE (1<<1) /* writeback and flush data cache */ |
| #endif |
| #ifndef BCACHE |
| #define BCACHE (ICACHE|DCACHE) /* flush both caches */ |
| #endif |
| |
| /* Harness Specific Incnude Files. */ |
| #include "test.h" |
| #include "usctest.h" |
| #include "linux_syscall_numbers.h" |
| |
| /* cacheflush man page states that cacheflush() is only applicable to |
| * MIPS architecture -- regardless, it's a good negative test.. */ |
| #if defined __mips__ |
| #include <asm/cachectl.h> |
| #ifndef __NR_cacheflush |
| #define __NR_cacheflush 0 |
| #endif |
| #else |
| /* Fake linux_syscall_numbers.h */ |
| #define __NR_cacheflush 0 |
| #endif |
| |
| /* Extern Global Variables */ |
| extern int Tst_count; /* counter for tst_xxx routines. */ |
| extern char *TESTDIR; /* temporary dir created by tst_tmpdir() */ |
| |
| /* Global Variables */ |
| char *TCID = "cacheflush01"; /* Test program identifier.*/ |
| int TST_TOTAL = 1; /* total number of tests in this file. */ |
| |
| /* Extern Global Functions */ |
| /******************************************************************************/ |
| /* */ |
| /* Function: cleanup */ |
| /* */ |
| /* Description: Performs all one time clean up for this test on successful */ |
| /* completion, premature exit or failure. Closes all temporary */ |
| /* files, removes all temporary directories exits the test with */ |
| /* appropriate return code by calling tst_exit() function. */ |
| /* */ |
| /* Input: None. */ |
| /* */ |
| /* Output: None. */ |
| /* */ |
| /* Return: On failure - Exits calling tst_exit(). Non '0' return code. */ |
| /* On success - Exits calling tst_exit(). With '0' return code. */ |
| /* */ |
| /******************************************************************************/ |
| extern void cleanup() { |
| /* Remove tmp dir and all files in it */ |
| TEST_CLEANUP; |
| tst_rmdir(); |
| } |
| |
| /* Local Functions */ |
| /******************************************************************************/ |
| /* */ |
| /* Function: setup */ |
| /* */ |
| /* Description: Performs all one time setup for this test. This function is */ |
| /* typically used to capture signals, create temporary dirs */ |
| /* and temporary files that may be used in the course of this */ |
| /* test. */ |
| /* */ |
| /* Input: None. */ |
| /* */ |
| /* Output: None. */ |
| /* */ |
| /* Return: On failure - Exits by calling cleanup(). */ |
| /* On success - returns 0. */ |
| /* */ |
| /******************************************************************************/ |
| void setup() { |
| /* Capture signals if any */ |
| /* Create temporary directories */ |
| TEST_PAUSE; |
| tst_tmpdir(); |
| } |
| |
| int main(int ac, char **av) |
| { |
| |
| char *addr = NULL; |
| char *msg; /* message returned from parse_opts */ |
| |
| /* parse standard options */ |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL){ |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| tst_exit(); |
| } |
| |
| setup(); |
| |
| Tst_count = 0; |
| /* Create some user address range */ |
| addr = malloc(getpagesize()); |
| if (addr == NULL) { |
| tst_brkm(TFAIL | TTERRNO, cleanup, "malloc failed"); |
| } |
| |
| /* Invokes cacheflush() with proper parameters */ |
| TEST(syscall(__NR_cacheflush, addr, getpagesize(), ICACHE)); |
| if (TEST_RETURN == 0) { |
| tst_resm(TPASS, "passed with no errno"); |
| } else { |
| tst_resm(TFAIL, "failed with unexpected errno"); |
| } |
| |
| TEST(syscall(__NR_cacheflush, addr, getpagesize(), DCACHE)); |
| if (TEST_RETURN == 0) { |
| tst_resm(TPASS, "passed with no errno"); |
| } else { |
| tst_resm(TFAIL, "failed with unexpected errno"); |
| } |
| |
| TEST(syscall(__NR_cacheflush, addr, getpagesize(), BCACHE)); |
| if (TEST_RETURN == 0) { |
| tst_resm(TPASS, "passed with no errno"); |
| } else { |
| tst_resm(TFAIL, "failed with unexpected errno"); |
| } |
| |
| cleanup(); |
| tst_exit(); |
| } |