From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S965054AbbKCU0O (ORCPT ); Tue, 3 Nov 2015 15:26:14 -0500 Received: from mga03.intel.com ([134.134.136.65]:49602 "EHLO mga03.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S964934AbbKCUXS (ORCPT ); Tue, 3 Nov 2015 15:23:18 -0500 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.20,239,1444719600"; d="scan'208";a="677670484" From: Octavian Purdila To: linux-arch@vger.kernel.org Cc: linux-kernel@vger.kernel.org, thehajime@gmail.com, Octavian Purdila Subject: [RFC PATCH 22/28] lkl tools: "boot" test Date: Tue, 3 Nov 2015 22:20:53 +0200 Message-Id: <1446582059-17355-23-git-send-email-octavian.purdila@intel.com> X-Mailer: git-send-email 2.1.0 In-Reply-To: <1446582059-17355-1-git-send-email-octavian.purdila@intel.com> References: <1446582059-17355-1-git-send-email-octavian.purdila@intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Add a simple LKL test applications that starts the kernel and performs simple tests that minimally exercise the LKL API. Signed-off-by: Octavian Purdila --- tools/lkl/.gitignore | 1 + tools/lkl/Makefile | 7 +- tools/lkl/tests/boot.c | 488 ++++++++++++++++++++++++++++++++++++++++++++++++ tools/lkl/tests/boot.sh | 10 + 4 files changed, 504 insertions(+), 2 deletions(-) create mode 100644 tools/lkl/tests/boot.c create mode 100755 tools/lkl/tests/boot.sh diff --git a/tools/lkl/.gitignore b/tools/lkl/.gitignore index e69de29..7c456f2 100644 --- a/tools/lkl/.gitignore +++ b/tools/lkl/.gitignore @@ -0,0 +1 @@ +test/boot diff --git a/tools/lkl/Makefile b/tools/lkl/Makefile index cf97d27..1ae4481 100644 --- a/tools/lkl/Makefile +++ b/tools/lkl/Makefile @@ -7,14 +7,17 @@ LD=$(CROSS_COMPILE)ld endif lib_source = $(filter-out %-host.c,$(wildcard lib/*.c)) +source = $(wildcard tests/*.c) ifneq (,$(filter $(shell $(LD) -r -print-output-format),elf64-x86-64 elf32-i386)) lib_source += lib/posix-host.c LDFLAGS += -lpthread -lrt endif lib_objs = $(patsubst %.c,%.o, $(lib_source)) lib/lkl.o +objs = $(patsubst %.c,%.o, $(source)) +execs = $(patsubst %.c,%, $(source)) -all: lib/liblkl.a +all: lib/liblkl.a $(execs) lib/liblkl.a: $(lib_objs) $(AR) -rc $@ $^ @@ -31,4 +34,4 @@ $(objs): lib/lkl.o $(execs): lib/liblkl.a clean: - -rm -rf include/lkl/ lib/liblkl.a $(lib_objs) + -rm -rf include/lkl/ lib/liblkl.a $(lib_objs) $(objs) $(execs) diff --git a/tools/lkl/tests/boot.c b/tools/lkl/tests/boot.c new file mode 100644 index 0000000..f5945aa --- /dev/null +++ b/tools/lkl/tests/boot.c @@ -0,0 +1,488 @@ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +static struct cl_args { + int printk; + const char *disk_filename; +} cla; + +static struct cl_option { + const char *long_name; + char short_name; + const char *help; + int has_arg; +} options[] = { + {"enable-printk", 'p', "show Linux printks", 0}, + {"disk-file", 'd', "disk file to use", 1}, + {0}, +}; + +static int parse_opt(int key, char *arg) +{ + switch (key) { + case 'p': + cla.printk = 1; + break; + case 'd': + cla.disk_filename = arg; + break; + default: + return -1; + } + + return 0; +} + +void printk(const char *str, int len) +{ + if (cla.printk) + write(STDOUT_FILENO, str, len); +} + +#define TEST(name) do_test(#name, test_##name) + +static void do_test(char *name, int (*fn)(char *, int)) +{ + char str[60]; + int result; + + result = fn(str, sizeof(str)); + printf("%-20s %s [%s]\n", name, result ? "passed" : "failed", str); +} + +#define sleep_ns 87654321 + +int test_nanosleep(char *str, int len) +{ + struct lkl_timespec ts = { + .tv_sec = 0, + .tv_nsec = sleep_ns, + }; + struct timespec start, stop; + long delta; + long ret; + + clock_gettime(CLOCK_MONOTONIC, &start); + ret = lkl_sys_nanosleep(&ts, NULL); + clock_gettime(CLOCK_MONOTONIC, &stop); + + delta = (stop.tv_sec - start.tv_sec) + + (stop.tv_nsec - start.tv_nsec); + + snprintf(str, len, "%ld", delta); + + if (ret == 0 && delta > sleep_ns * 0.9 && delta < sleep_ns * 1.1) + return 1; + + return 0; +} + +int test_getpid(char *str, int len) +{ + long ret; + + ret = lkl_sys_getpid(); + + snprintf(str, len, "%ld", ret); + + if (ret == 1) + return 1; + + return 0; +} + +#define access_rights 0721 + +int test_creat(char *str, int len) +{ + long ret; + + ret = lkl_sys_creat("/file", access_rights); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +int test_close(char *str, int len) +{ + long ret; + + ret = lkl_sys_close(0); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +int test_failopen(char *str, int len) +{ + long ret; + + ret = lkl_sys_open("/file2", 0, 0); + + snprintf(str, len, "%ld", ret); + + if (ret == -LKL_ENOENT) + return 1; + + return 0; +} + +int test_umask(char *str, int len) +{ + long ret, ret2; + + ret = lkl_sys_umask(0777); + + ret2 = lkl_sys_umask(0); + + snprintf(str, len, "%lo %lo", ret, ret2); + + if (ret > 0 && ret2 == 0777) + return 1; + + return 0; +} + +int test_open(char *str, int len) +{ + long ret; + + ret = lkl_sys_open("/file", LKL_O_RDWR, 0); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +static const char write_test[] = "test"; + +int test_write(char *str, int len) +{ + long ret; + + ret = lkl_sys_write(0, write_test, sizeof(write_test)); + + snprintf(str, len, "%ld", ret); + + if (ret == sizeof(write_test)) + return 1; + + return 0; +} + +int test_lseek(char *str, int len) +{ + long ret; + __lkl__kernel_loff_t res; + + ret = lkl_sys_lseek(0, 0, &res, LKL_SEEK_SET); + + snprintf(str, len, "%ld %lld", ret, res); + + if (ret == 0) + return 1; + + return 0; +} + +int test_read(char *str, int len) +{ + char buf[10] = { 0, }; + long ret; + + ret = lkl_sys_read(0, buf, sizeof(buf)); + + snprintf(str, len, "%ld %s", ret, buf); + + if (ret == sizeof(write_test) && strcmp(write_test, buf) == 0) + return 1; + + return 0; +} + +int test_fstat64(char *str, int len) +{ + struct lkl_stat64 stat; + long ret; + + ret = lkl_sys_fstat64(0, &stat); + + snprintf(str, len, "%ld %o %lld", ret, stat.st_mode, stat.st_size); + + if (ret == 0 && stat.st_size == sizeof(write_test) && + stat.st_mode == (access_rights | LKL_S_IFREG)) + return 1; + + return 0; +} + +int test_mkdir(char *str, int len) +{ + long ret; + + ret = lkl_sys_mkdir("/mnt", access_rights); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +int test_stat64(char *str, int len) +{ + struct lkl_stat64 stat; + long ret; + + ret = lkl_sys_stat64("/mnt", &stat); + + snprintf(str, len, "%ld %o", ret, stat.st_mode); + + if (ret == 0 && stat.st_mode == (access_rights | LKL_S_IFDIR)) + return 1; + + return 0; +} + +static const char *tmp_file; +static union lkl_disk_backstore bs; +static int disk_id = -1; + +int test_disk_add(char *str, int len) +{ + bs.fd = open(cla.disk_filename, O_RDWR); + if (bs.fd < 0) + goto out_unlink; + + disk_id = lkl_disk_add(bs); + if (disk_id < 0) + goto out_close; + + goto out; + +out_close: + close(bs.fd); +out_unlink: + unlink(cla.disk_filename); + +out: + snprintf(str, len, "%x %d", bs.fd, disk_id); + + if (disk_id >= 0) + return 1; + + return 0; +} + +static char mnt_point[32]; + +static int test_mount(char *str, int len) +{ + long ret; + + ret = lkl_mount_dev(disk_id, "ext4", 0, NULL, mnt_point, + sizeof(mnt_point)); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +static int test_chdir(char *str, int len) +{ + long ret; + + ret = lkl_sys_chdir(mnt_point); + + snprintf(str, len, "%ld", ret); + + if (ret == 0) + return 1; + + return 0; +} + +static int dir_fd; + +static int test_opendir(char *str, int len) +{ + dir_fd = lkl_sys_open(".", LKL_O_RDONLY | LKL_O_DIRECTORY, 0); + + snprintf(str, len, "%d", dir_fd); + + if (dir_fd > 0) + return 1; + + return 0; +} + +static int test_getdents64(char *str, int len) +{ + long ret; + char buf[1024], *pos; + struct lkl_dirent64 *de; + int wr; + + ret = lkl_sys_getdents64(dir_fd, buf, sizeof(buf)); + + wr = snprintf(str, len, "%d ", dir_fd); + str += wr; + len -= wr; + + if (ret < 0) + return 0; + + for (pos = buf; pos - buf < ret; pos += de->d_reclen) { + de = (struct lkl_dirent64 *)pos; + + wr = snprintf(str, len, "%s ", de->d_name); + str += wr; + len -= wr; + } + + return 1; +} + +static int test_umount(char *str, int len) +{ + long ret, ret2, ret3; + + ret = lkl_sys_close(dir_fd); + + ret2 = lkl_sys_chdir("/"); + + ret3 = lkl_umount_dev(disk_id, 0, 1000); + + snprintf(str, len, "%ld %ld %ld", ret, ret2, ret3); + + if (!ret && !ret2 && !ret3) + return 1; + + return 0; +} + +static struct cl_option *find_short_opt(char name) +{ + struct cl_option *opt; + + for (opt = options; opt->short_name != 0; opt++) { + if (opt->short_name == name) + return opt; + } + + return NULL; +} + +static struct cl_option *find_long_opt(const char *name) +{ + struct cl_option *opt; + + for (opt = options; opt->long_name; opt++) { + if (strcmp(opt->long_name, name) == 0) + return opt; + } + + return NULL; +} + +static void print_help(void) +{ + struct cl_option *opt; + + printf("usage:\n"); + for (opt = options; opt->long_name; opt++) + printf("-%c, --%-20s %s\n", opt->short_name, opt->long_name, + opt->help); +} + +static int parse_opts(int argc, char **argv) +{ + int i; + + for (i = 1; i < argc; i++) { + struct cl_option *opt = NULL; + + if (argv[i][0] == '-') { + if (argv[i][1] != '-') + opt = find_short_opt(argv[i][1]); + else + opt = find_long_opt(&argv[i][2]); + } + + if (!opt) { + print_help(); + return -1; + } + + if (parse_opt(opt->short_name, argv[i + 1]) < 0) { + print_help(); + return -1; + } + + if (opt->has_arg) + i++; + } + + return 0; +} + +int main(int argc, char **argv) +{ + if (parse_opts(argc, argv) < 0) + return -1; + + lkl_host_ops.print = printk; + + TEST(disk_add); + + lkl_start_kernel(&lkl_host_ops, 10 * 1024 * 1024, ""); + + TEST(getpid); + TEST(umask); + TEST(creat); + TEST(close); + TEST(failopen); + TEST(open); + TEST(write); + TEST(lseek); + TEST(read); + TEST(fstat64); + TEST(mkdir); + TEST(stat64); + TEST(nanosleep); + TEST(mount); + TEST(chdir); + TEST(opendir); + TEST(getdents64); + TEST(umount); + + lkl_sys_halt(); + + close(bs.fd); + unlink(tmp_file); + + return 0; +} diff --git a/tools/lkl/tests/boot.sh b/tools/lkl/tests/boot.sh new file mode 100755 index 0000000..3fb7b1f --- /dev/null +++ b/tools/lkl/tests/boot.sh @@ -0,0 +1,10 @@ +#!/bin/bash + +file=`mktemp` +dd if=/dev/zero of=$file bs=1024 count=10240 + +yes | mkfs.ext4 -q $file + +./boot -d $file $@ + +rm $file -- 2.1.0