LTP 第六章 开发IO阻塞测试集

LTP系列链接：

本文同步发布于我的个人网站：LTP教程

第一章 LTP介绍及内部机制

第二章 开发Shell测试集

第三章 开发系统调用测试集

第四章 开发_exit()测试集

第五章 开发IO操作测试集

第六章 开发IO阻塞测试集

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6 开发IO阻塞测试集

在本章中，我们将编写以下几个测试：

• Convert pselect02

• Convert epoll_wait03

• Convert epoll_pwait01

• Convert mmap04

• Convert mmap05

• Convert mmap06

• Add select05

6.1 Convert pselect02

6.1.1 重写代码

ltp/testcases/kernel/syscalls/pselect/wxs@ubuntu:~/ltp/testcases/kernel/syscalls/pselect$ rm pselect02.cwxs@ubuntu:~/ltp/testcases/kernel/syscalls/pselect$ vim pselect02.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. *//********************************************************** * *    TEST IDENTIFIER   : peselet02 * *    TEST TITLE        : Basic tests for pselect(2) * *    TEST CASE TOTAL   : 3 * *    AUTHOR            : jitwxs *                      <[e-mail]> * *    DESCRIPTION *      Verify that, *      1. pselect() fails with -1 return value and sets errno to EBADF *          if a file descriptor that was already closed. *      2. pselect() fails with -1 return value and sets errno to EINVAL *          if nfds was negative. *      3. pselect() fails with -1 return value and sets errno to EINVAL *          if the value contained within timeout was invalid. * **********************************************************/#include <errno.h>#include "tst_test.h"static fd_set read_fds;static struct timespec time_buf;static struct tcase {    int nfds;    fd_set *readfds;    struct timespec *timeout;    int exp_errno;} tcases[] = {    {128, &read_fds, NULL, EBADF},    {-1, NULL, NULL, EINVAL},    {128, NULL, &time_buf, EINVAL}};static void my_test(unsigned int n){    struct tcase *tc = &tcases[n];    TEST(pselect(tc->nfds, tc->readfds, NULL,                NULL, tc->timeout, NULL));    if (TEST_RETURN != -1) {        tst_res(TFAIL, "pselect() succeeded unexpectedly");        return;    }    if (tc->exp_errno == TEST_ERRNO)        tst_res(TPASS | TTERRNO, "pselect() failed as expected");    else        tst_res(TFAIL | TTERRNO,                "pselect() failed unexpectedly; expected: %d - %s",                tc->exp_errno, strerror(tc->exp_errno));}static void setup(void){    int fd;    fd = SAFE_OPEN("test_file", O_RDWR | O_CREAT, 0777);    FD_ZERO(&read_fds);    FD_SET(fd, &read_fds);    SAFE_CLOSE(fd);    time_buf.tv_sec = -1;    time_buf.tv_nsec = 0;}static struct tst_test test = {    .tcnt = ARRAY_SIZE(tcases),    .test = my_test,    .needs_checkpoints = 1,    .setup = setup,    .needs_tmpdir = 1};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/pselect$ ./pselect02tst_test.c:977: INFO: Timeout per run is 0h 05m 00spselect02.c:65: PASS: pselect() failed as expected: EBADFpselect02.c:65: PASS: pselect() failed as expected: EINVALpselect02.c:65: PASS: pselect() failed as expected: EINVALSummary:passed   3failed   0skipped  0warnings 0

6.1.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/pselect/pselect02.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert pselect02 to new API"[master e9f68a5] Convert pselect02 to new API 1 file changed, 93 insertions(+), 118 deletions(-) rewrite testcases/kernel/syscalls/pselect/pselect02.c (83%)

wxs@ubuntu:~/ltp$ git format-patch -10001-Convert-pselect02-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0001-Convert-pselect02-to-new-API.patch total: 0 errors, 0 warnings, 172 lines checked0001-Convert-pselect02-to-new-API.patch has no obvious style problems and is ready for submission.

6.2 Convert epoll_wait03

6.2.1 重写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_wait$ rm epoll_wait03.cwxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_wait$ vim epoll_wait03.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. *//********************************************************** * *    TEST IDENTIFIER   : epoll_wait03 * *    TEST TITLE        : Basic tests for epoll_wait(2) * *    TEST CASE TOTAL   : 5 * *    AUTHOR            : jitwxs *                      <[e-mail]> * *    Description: *      1) epoll_wait(2) fails if epfd is not a valid file descriptor *      2) epoll_wait(2) fails if epfd is not an epoll file descriptor *      3) epoll_wait(2) fails if maxevents is less than zero *      4) epoll_wait(2) fails if maxevents is equal to zero *      5) epoll_wait(2) fails if the memory area pointed to by events *          is not accessible with write permissions. * *    Expected Result: *      1) epoll_wait(2) should return -1 and set errno to EBADF *      2) epoll_wait(2) should return -1 and set errno to EINVAL *      3) epoll_wait(2) should return -1 and set errno to EINVAL *      4) epoll_wait(2) should return -1 and set errno to EINVAL *      5) epoll_wait(2) should return -1 and set errno to EFAULT * **********************************************************/#include <sys/epoll.h>#include <sys/mman.h>#include <unistd.h>#include <string.h>#include <errno.h>#include "tst_test.h"static int page_size, fds[2], epfd, inv_epfd, bad_epfd = -1;static struct epoll_event epevs[1] = {    {.events = EPOLLOUT}};static struct epoll_event *ev_rdwr = epevs;static struct epoll_event *ev_rdonly;static struct tcase {    int *epfd;    struct epoll_event **ev;    int maxevents;    int exp_errno;} tcases[] = {    {&bad_epfd, &ev_rdwr, 1, EBADF},    {&inv_epfd, &ev_rdwr, 1,  EINVAL},    {&epfd, &ev_rdwr, -1,  EINVAL},    {&epfd, &ev_rdwr, 0,  EINVAL},    {&epfd, &ev_rdonly, 1,  EFAULT}};static void my_test(unsigned int n){    struct tcase *tc = &tcases[n];    TEST(epoll_wait(*(tc->epfd), *(tc->ev), tc->maxevents, -1));    if (TEST_RETURN != -1)        tst_res(TFAIL, "epoll_wait() succeed unexpectedly");    else        if (tc->exp_errno == TEST_ERRNO)            tst_res(TPASS | TTERRNO,                    "epoll_wait() fails as expected");        else            tst_res(TFAIL | TTERRNO,                    "epoll_wait() fails unexpectedly, expected %d: %s",                    tc->exp_errno,                    strerror(tc->exp_errno));}static void setup(void){    page_size = getpagesize();    ev_rdonly = SAFE_MMAP(NULL, page_size, PROT_READ,            MAP_PRIVATE | MAP_ANONYMOUS, -1, 0);    SAFE_PIPE(fds);    epfd = epoll_create(1);    if (epfd == -1)        tst_brk(TBROK | TERRNO, "failed to create epoll instance");    epevs[0].data.fd = fds[1];    if (epoll_ctl(epfd, EPOLL_CTL_ADD, fds[1], &epevs[0]))        tst_brk(TBROK | TERRNO, "failed to register epoll target");}static void cleanup(void){    if (epfd > 0 && close(epfd))        tst_res(TWARN | TERRNO, "failed to close epfd");    if (close(fds[0]))        tst_res(TWARN | TERRNO, "close(fds[0]) failed");    if (close(fds[1]))        tst_res(TWARN | TERRNO, "close(fds[1]) failed");}static struct tst_test test = {    .tcnt = ARRAY_SIZE(tcases),    .test = my_test,    .needs_checkpoints = 1,    .setup = setup,    .cleanup = cleanup};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_wait$ ./epoll_wait03tst_test.c:977: INFO: Timeout per run is 0h 05m 00sepoll_wait03.c:82: PASS: epoll_wait() fails as expected: EBADFepoll_wait03.c:82: PASS: epoll_wait() fails as expected: EINVALepoll_wait03.c:82: PASS: epoll_wait() fails as expected: EINVALepoll_wait03.c:82: PASS: epoll_wait() fails as expected: EINVALepoll_wait03.c:82: PASS: epoll_wait() fails as expected: EFAULTSummary:passed   5failed   0skipped  0warnings 0

6.2.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/epoll_wait/epoll_wait03.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert epoll_wait03 to new API"[master 9f73675] Convert epoll_wait03 to new API 1 file changed, 127 insertions(+), 153 deletions(-) rewrite testcases/kernel/syscalls/epoll_wait/epoll_wait03.c (77%)

wxs@ubuntu:~/ltp$ git format-patch -20001-Convert-pselect02-to-new-API.patch0002-Convert-epoll_wait03-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0002-Convert-epoll_wait03-to-new-API.patch total: 0 errors, 0 warnings, 221 lines checked0002-Convert-epoll_wait03-to-new-API.patch has no obvious style problems and is ready for submission.

6.3 Convert epoll_pwait01

6.3.1 重写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_pwait$ rm epoll_pwait01.cwxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_pwait$ vim epoll_pwait01.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. *//********************************************************** * *    TEST IDENTIFIER   : epoll_pwait01 * *    TEST TITLE        : Basic tests for epoll_wait(2) * *    TEST CASE TOTAL   : 2 * *    AUTHOR            : jitwxs *                      <[e-mail]> * *    DESCRIPTION *      Basic test for epoll_pwait(2). *      1)  epoll_pwait(2) with sigmask argument allows the caller to *          safely wait until either a file descriptor becomes ready *          or the timeout expires. *      2)  epoll_pwait(2) with NULL sigmask argument fails if *          interrupted by a signal handler, epoll_pwait(2) should *          return -1 and set errno to EINTR.include <sys/epoll.h> **********************************************************/#include <sys/epoll.h>#include <sys/types.h>#include <unistd.h>#include <stdlib.h>#include <string.h>#include <errno.h>#include "tst_test.h"static int epfd, fds[2];static struct sigaction sa;static struct epoll_event epevs;static sigset_t signalset;static struct tcase {    sigset_t *sig;    int ret_val;    int exp_errno;} tcases[] = {    {&signalset, 0, 0},    {NULL, -1, EINTR}};static void sighandler(int sig LTP_ATTRIBUTE_UNUSED){}static void setup(void){    if (sigemptyset(&signalset) == -1)        tst_brk(TFAIL | TERRNO, "sigemptyset() failed");    if (sigaddset(&signalset, SIGUSR1) == -1)        tst_brk(TFAIL | TERRNO, "sigaddset() failed");    sa.sa_flags = 0;    sa.sa_handler = sighandler;    if (sigemptyset(&sa.sa_mask) == -1)        tst_brk(TFAIL | TERRNO, "sigemptyset() failed");    if (sigaction(SIGUSR1, &sa, NULL) == -1)        tst_brk(TFAIL | TERRNO, "sigaction() failed");    SAFE_PIPE(fds);    epfd = epoll_create(1);    if (epfd == -1)        tst_brk(TBROK | TERRNO, "failed to create epoll instance");    epevs.events = EPOLLIN;    epevs.data.fd = fds[0];    if (epoll_ctl(epfd, EPOLL_CTL_ADD, fds[0], &epevs) == -1)        tst_brk(TBROK | TERRNO, "failed to register epoll target");}static void cleanup(void){    if (epfd > 0 && close(epfd))        tst_res(TWARN | TERRNO, "failed to close epfd");    if (close(fds[0]))        tst_res(TWARN | TERRNO, "close(fds[0]) failed");    if (close(fds[1]))        tst_res(TWARN | TERRNO, "close(fds[1]) failed");}static void my_test(unsigned int n){    struct tcase *tc = &tcases[n];    if (SAFE_FORK() == 0) {        TST_PROCESS_STATE_WAIT(getppid(), 'S');        SAFE_KILL(getppid(), SIGUSR1);        cleanup();        exit(EXIT_SUCCESS);    }    TEST(epoll_pwait(epfd, &epevs, 1, 100, tc->sig));    if (tc->ret_val == TEST_RETURN)        if (TEST_RETURN == 0 || tc->exp_errno == TEST_ERRNO) {            tst_res(TPASS, "epoll_pwait() pass");            return;        }    tst_res(TFAIL | TTERRNO, "epoll_pwait() failed");}static struct tst_test test = {    .tcnt = ARRAY_SIZE(tcases),    .test = my_test,    .needs_checkpoints = 1,    .forks_child = 1,    .setup = setup,    .cleanup = cleanup,    .min_kver = "2.6.19"};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/epoll_pwait$ ./epoll_pwait01 tst_test.c:977: INFO: Timeout per run is 0h 05m 00sepoll_pwait01.c:118: PASS: epoll_pwait() passepoll_pwait01.c:118: PASS: epoll_pwait() passSummary:passed   2failed   0skipped  0warnings 0

6.3.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/epoll_pwait/epoll_pwait01.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert epoll_pwait01 to new API"[master 5cc7e9a] Convert epoll_pwait01 to new API 1 file changed, 133 insertions(+), 197 deletions(-) rewrite testcases/kernel/syscalls/epoll_pwait/epoll_pwait01.c (80%)

wxs@ubuntu:~/ltp$ git format-patch -30001-Convert-pselect02-to-new-API.patch0002-Convert-epoll_wait03-to-new-API.patch0003-Convert-epoll_pwait01-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0003-Convert-epoll_pwait01-to-new-API.patch total: 0 errors, 0 warnings, 278 lines checked0003-Convert-epoll_pwait01-to-new-API.patch has no obvious style problems and is ready for submission.

6.4 Convert mmap04

6.4.1 重写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ rm mmap04.c wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ vim mmap04.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. * *//********************************************************** * *    TEST IDENTIFIER   : mmap04 * *    TEST TITLE        : Basic tests for mmap(2) * *    TEST CASE TOTAL   : 1 * *    AUTHOR            : jitwxs *                        <[e-mail]> * *    DESCRIPTION *      Call mmap() to map a file creating a mapped region with read/exec access *      under the following conditions - *      - The prot parameter is set to PROT_READ|PROT_EXEC *      - The file descriptor is open for read *      - The file being mapped has read and execute permission bit set. *      - The minimum file permissions should be 0555. * *      The call should succeed to map the file creating mapped memory with the *      required attributes. * *    EXPECTED RESULT *      mmap() should succeed returning the address of the mapped region,and the *      mapped region should contain the contents of the mapped file. * ********************************************************/#include <stdlib.h>#include <errno.h>#include "tst_test.h"#define TEMPFILE "tempFile"static size_t page_sz;static char *addr;static char *dummy;static int fd;static void setup(void){    char *buf;    page_sz = getpagesize();    buf = calloc(page_sz, sizeof(char));    if (buf == NULL)        tst_brk(TFAIL, "calloc() failed (tst_buff)");    memset(buf, 'A', page_sz);    fd = open(TEMPFILE, O_WRONLY | O_CREAT, 0666);    if (fd < 0) {        free(buf);        tst_brk(TFAIL, "opening %s failed", TEMPFILE);    }    if ((size_t)write(fd, buf, page_sz) < page_sz) {        free(buf);        tst_brk(TFAIL, "writing to %s failed", TEMPFILE);    }    free(buf);    if (fchmod(fd, 0555) < 0)        tst_brk(TFAIL, "fchmod of %s failed", TEMPFILE);    if (close(fd) < 0)        tst_brk(TFAIL, "closing %s failed", TEMPFILE);    dummy = calloc(page_sz, sizeof(char));    if (dummy == NULL)        tst_brk(TFAIL, "calloc failed (dummy)");    fd = open(TEMPFILE, O_RDONLY);    if (fd < 0)        tst_brk(TFAIL, "opening %s read-only failed", TEMPFILE);}static void cleanup(void){    close(fd);    free(dummy);}static void do_test(void){    addr = mmap(0, page_sz, PROT_READ | PROT_EXEC,                MAP_FILE | MAP_SHARED, fd, 0);    TEST_ERRNO = errno;    if (addr == MAP_FAILED)        tst_res(TFAIL | TERRNO, "mmap of %s failed", TEMPFILE);    if ((read(fd, dummy, page_sz)) < 0)        tst_brk(TFAIL, "reading %s failed", TEMPFILE);    if ((memcmp(dummy, addr, page_sz)))        tst_res(TFAIL,                "mapped memory region contains invalid data");    else        tst_res(TPASS,                "Functionality of mmap() successful");    if ((munmap(addr, page_sz)) != 0)        tst_brk(TFAIL, "munmapping failed");    cleanup();    exit(EXIT_SUCCESS);}static struct tst_test test = {    .test_all = do_test,    .setup = setup,    .cleanup = cleanup,    .needs_tmpdir = 1};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ ./mmap04tst_test.c:977: INFO: Timeout per run is 0h 05m 00smmap04.c:114: PASS: Functionality of mmap() successfulSummary:passed   1failed   0skipped  0warnings 0

6.4.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/mmap/mmap04.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert mmap04 to new API"[master 0988ebb] Convert mmap04 to new API 1 file changed, 9 insertions(+), 5 deletions(-)

wxs@ubuntu:~/ltp$ git format-patch -40001-Convert-epoll_wait03-to-new-API.patch0002-Convert-epoll_pwait01-to-new-API.patch0003-Convert-mmap04-to-new-API.patch0004-Convert-mmap04-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0004-Convert-mmap04-to-new-API.patch total: 0 errors, 0 warnings, 32 lines checked0004-Convert-mmap04-to-new-API.patch has no obvious style problems and is ready for submission.

6.5 Convert mmap05

6.5.1 重写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ rm mmap05.c wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ vim mmap05.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. * *//********************************************************** * *    TEST IDENTIFIER   : mmap05 * *    TEST TITLE        : Basic tests for mmap(2) * *    TEST CASE TOTAL   : 1 * *    AUTHOR            : jitwxs *                        <[e-mail]> * *    DESCRIPTION *      Call mmap() to map a file creating mapped memory with no access *      under the following conditions - *      - The prot parameter is set to PROT_NONE *      - The file descriptor is open for read(any mode other than write) *      - The minimum file permissions should be 0444. * *      The call should succeed to map the file creating mapped memory *      with the required attributes. * *    EXPECTED RESULT *      mmap() should succeed returning the address of the mapped region, *      and an attempt to access the contents of the mapped region *      should give rise to the signal SIGSEGV. * ********************************************************/#include <stdlib.h>#include <errno.h>#include <setjmp.h>#include "tst_test.h"#include <signal.h>#define TEMPFILE "tempFile"static size_t page_sz;static volatile char *addr;static volatile int pass = 0;static int fd;static sigjmp_buf env;static void sig_handler(int sig){    if (sig == SIGSEGV) {        pass = 1;        siglongjmp(env, 1);    } else        tst_brk(TBROK, "received an unexpected signal: %d", sig);}static void setup(void){    char *buf;    signal(SIGSEGV, sig_handler);    page_sz = getpagesize();    buf = calloc(page_sz, sizeof(char));    if (buf == NULL)        tst_brk(TFAIL, "calloc() failed (tst_buff)");    memset(buf, 'A', page_sz);    fd = open(TEMPFILE, O_WRONLY | O_CREAT, 0666);    if (fd < 0) {        free(buf);        tst_brk(TFAIL, "opening %s failed", TEMPFILE);    }    if ((size_t)write(fd, buf, page_sz) != page_sz) {        free(buf);        tst_brk(TFAIL, "writing to %s failed", TEMPFILE);    }    free(buf);    if (fchmod(fd, 0444) < 0)        tst_brk(TFAIL | TERRNO, "fchmod of %s failed", TEMPFILE);    if (close(fd) < 0)        tst_brk(TFAIL | TERRNO, "closing %s failed", TEMPFILE);    fd = open(TEMPFILE, O_RDONLY);    if (fd < 0)        tst_brk(TFAIL | TERRNO,                "opening %s read-only failed", TEMPFILE);}static void cleanup(void){    close(fd);}static void do_test(void){    char file_content;    addr = mmap(0, page_sz, PROT_NONE,            MAP_FILE | MAP_SHARED, fd, 0);    TEST_ERRNO = errno;    if (addr == MAP_FAILED)        tst_res(TFAIL | TERRNO, "mmap of %s failed", TEMPFILE);    if (sigsetjmp(env, 1) == 0)        file_content = addr[0];    if (pass)        tst_res(TPASS, "Got SIGSEGV as expected");    else        tst_res(TFAIL,                "Mapped memory region with NO access is accessible");    if (munmap((void *)addr, page_sz) != 0)        tst_brk(TFAIL, "munmapping failed");    pass = 0;    exit(EXIT_SUCCESS);}static struct tst_test test = {    .test_all = do_test,    .setup = setup,    .cleanup = cleanup,    .needs_tmpdir = 1};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ ./mmap05 tst_test.c:977: INFO: Timeout per run is 0h 05m 00smmap05.c:122: PASS: Got SIGSEGV as expectedSummary:passed   1failed   0skipped  0warnings 0

6.5.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/mmap/mmap05.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert mmap05 to new API"[master 4d1ba1a] Convert mmap05 to new API 1 file changed, 8 insertions(+), 7 deletions(-)

wxs@ubuntu:~/ltp$ git format-patch -50001-Convert-epoll_pwait01-to-new-API.patch0002-Convert-mmap04-to-new-API.patch0003-Convert-mmap04-to-new-API.patch0004-Convert-mmap05-to-new-API.patch0005-Convert-mmap05-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0005-Convert-mmap05-to-new-API.patch total: 0 errors, 0 warnings, 34 lines checked0005-Convert-mmap05-to-new-API.patch has no obvious style problems and is ready for submission.

6.6 Convert mmap06

6.6.1 重写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ rm mmap06.cwxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ vim mmap06.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. * *//********************************************************** * *    TEST IDENTIFIER   : mmap06 * *    TEST TITLE        : Basic tests for mmap(2) * *    TEST CASE TOTAL   : 1 * *    AUTHOR            : jitwxs *                        <[e-mail]> * *    DESCRIPTION *      Call mmap() to map a file creating a mapped region with read *      access under the following conditions - *      - The prot parameter is set to PROT_READ *      - The file descriptor is open for writing. * *      The call should fail to map the file. * *    EXPECTED RESULT *      mmap() should fail returning -1 and errno should get set to *      EACCES. * **********************************************************/#include <stdlib.h>#include <errno.h>#include "tst_test.h"#define TEMPFILE "tempFile"static size_t page_sz;static char *addr;static int fd;static void setup(void){    char *buf;    page_sz = getpagesize();    buf = calloc(page_sz, sizeof(char));    if (buf == NULL)        tst_brk(TFAIL, "calloc() failed (tst_buff)");    memset(buf, 'A', page_sz);    fd = open(TEMPFILE, O_WRONLY | O_CREAT, 0666);    if (fd < 0) {        free(buf);        tst_brk(TFAIL, "opening %s failed", TEMPFILE);    }    if ((size_t)write(fd, buf, page_sz) < page_sz) {        free(buf);        tst_brk(TFAIL, "writing to %s failed", TEMPFILE);    }    free(buf);}static void cleanup(void){    close(fd);}static void do_test(void){    addr = mmap(0, page_sz, PROT_READ,                MAP_FILE | MAP_SHARED, fd, 0);    TEST_ERRNO = errno;    if (addr != MAP_FAILED) {        tst_res(TFAIL | TERRNO,                "mmap() returned invalid value, expected: %p",                MAP_FAILED);        if (munmap(addr, page_sz) != 0) {            tst_res(TBROK, "munmap() failed");            cleanup();        }        exit(EXIT_FAILURE);    }    if (TEST_ERRNO == EACCES)        tst_res(TPASS, "mmap failed with EACCES");    else        tst_res(TFAIL | TERRNO,                "mmap failed with unexpected errno");    cleanup();    exit(EXIT_SUCCESS);}static struct tst_test test = {    .test_all = do_test,    .setup = setup,    .cleanup = cleanup,    .needs_tmpdir = 1};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/mmap$ ./mmap06tst_test.c:977: INFO: Timeout per run is 0h 05m 00smmap06.c:97: PASS: mmap failed with EACCESSummary:passed   1failed   0skipped  0warnings 0

6.6.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/mmap/mmap06.cwxs@ubuntu:~/ltp$ git commit -s -m "Convert mmap06 to new API"[master ade348a] Convert mmap06 to new API 1 file changed, 2 insertions(+), 2 deletions(-)

wxs@ubuntu:~/ltp$ git format-patch -60001-Convert-mmap04-to-new-API.patch0002-Convert-mmap04-to-new-API.patch0003-Convert-mmap05-to-new-API.patch0004-Convert-mmap05-to-new-API.patch0005-Convert-mmap06-to-new-API.patch0006-Convert-mmap06-to-new-API.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0006-Convert-mmap06-to-new-API.patch total: 0 errors, 0 warnings, 16 lines checked0006-Convert-mmap06-to-new-API.patch has no obvious style problems and is ready for submission.

6.7 Add selelct05

6.7.1 编写代码

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/select$ vim select05.c

/* * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc. * *//********************************************************** * *    TEST IDENTIFIER   : select05 * *    TEST TITLE        : Basic tests for select(2) * *    TEST CASE TOTAL   : 1 * *    AUTHOR            : jitwxs *                        <[e-mail]> * *    DESCRIPTION *      Check that select() read and write monitoring correctly. * **********************************************************/#include <stdlib.h>#include <errno.h>#include "tst_test.h"int fd[2];static void my_test(void){    struct timeval tv;    int retval;    fd_set fs;    FD_ZERO(&fs);    FD_SET(fd[0], &fs);    FD_SET(fd[1], &fs);    tv.tv_sec = 3;    tv.tv_usec = 0;    if (SAFE_FORK() == 0) {        close(fd[0]);        write(fd[1], "test", strlen("test"));        exit(EXIT_SUCCESS);    }    retval = select(FD_SETSIZE, &fs, &fs, NULL, &tv);    SAFE_WAIT(NULL);    if (retval == -1)        tst_res(TFAIL | TERRNO, "error: %s", strerror(errno));    else if (retval && !FD_ISSET(fd[0], &fs) &&            FD_ISSET(fd[1], &fs))        tst_res(TPASS, "select() pass");    else        tst_res(TFAIL, "select() failed");}void setup(void){    if ((pipe(fd)) < 0)        tst_brk(TBROK | TERRNO, "pipe error");}static struct tst_test test = {    .test_all = my_test,    .setup = setup,    .forks_child = 1};

wxs@ubuntu:~/ltp/testcases/kernel/syscalls/select$ ./select05tst_test.c:977: INFO: Timeout per run is 0h 05m 00sselect05.c:64: PASS: select() passSummary:passed   1failed   0skipped  0warnings 0

6.7.2 提交并校验

wxs@ubuntu:~/ltp$ git add testcases/kernel/syscalls/select/select05.cwxs@ubuntu:~/ltp$ git commit -s -m "Add select05 to test selelct(2)"[master 6d9bd93] Add select05 to test selelct(2) 1 file changed, 3 insertions(+), 2 deletions(-)

wxs@ubuntu:~/ltp$ git format-patch -70001-Convert-mmap04-to-new-API.patch0002-Convert-mmap05-to-new-API.patch0003-Convert-mmap05-to-new-API.patch0004-Convert-mmap06-to-new-API.patch0005-Convert-mmap06-to-new-API.patch0006-Add-select05-to-test-selelct-2.patch0007-Add-select05-to-test-selelct-2.patchwxs@ubuntu:~/ltp$ ../linux/scripts/checkpatch.pl 0007-Add-select05-to-test-selelct-2.patch total: 0 errors, 0 warnings, 17 lines checked0007-Add-select05-to-test-selelct-2.patch has no obvious style problems and is ready for submission.