From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yang Xu Date: Fri, 8 Nov 2019 20:00:19 +0800 Subject: [LTP] [PATCH v5 2/2] syscalls/prctl09: New timer sample test for PR_SET_TIMERSLACK In-Reply-To: <1573214419-15435-1-git-send-email-xuyang2018.jy@cn.fujitsu.com> References: <20191107130543.GD22352@rei.lan> <1573214419-15435-1-git-send-email-xuyang2018.jy@cn.fujitsu.com> Message-ID: <1573214419-15435-2-git-send-email-xuyang2018.jy@cn.fujitsu.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: ltp@lists.linux.it It also moves test setup function before timer setup function, so we can get this set value. Signed-off-by: Yang Xu --- lib/tst_timer_test.c | 8 ++-- runtest/syscalls | 1 + testcases/kernel/syscalls/prctl/.gitignore | 1 + testcases/kernel/syscalls/prctl/Makefile | 2 +- testcases/kernel/syscalls/prctl/prctl09.c | 47 ++++++++++++++++++++++ 5 files changed, 53 insertions(+), 6 deletions(-) create mode 100644 testcases/kernel/syscalls/prctl/prctl09.c diff --git a/lib/tst_timer_test.c b/lib/tst_timer_test.c index f6459e5c0..13e9deff2 100644 --- a/lib/tst_timer_test.c +++ b/lib/tst_timer_test.c @@ -340,6 +340,9 @@ static void timer_setup(void) struct timespec t; int ret; + if (setup) + setup(); + tst_clock_getres(CLOCK_MONOTONIC, &t); tst_res(TINFO, "CLOCK_MONOTONIC resolution %lins", (long)t.tv_nsec); @@ -360,16 +363,11 @@ static void timer_setup(void) tst_res(TINFO, "PR_GET_TIMERSLACK not defined, using %uus", timerslack); #endif /* PR_GET_TIMERSLACK */ - parse_timer_opts(); samples = SAFE_MALLOC(sizeof(long long) * MAX(MAX_SAMPLES, sample_cnt)); - if (set_latency() < 0) tst_res(TINFO, "Failed to set zero latency constraint: %m"); - - if (setup) - setup(); } static void timer_cleanup(void) diff --git a/runtest/syscalls b/runtest/syscalls index fee91f909..e4e162b23 100644 --- a/runtest/syscalls +++ b/runtest/syscalls @@ -880,6 +880,7 @@ prctl05 prctl05 prctl06 prctl06 prctl07 prctl07 prctl08 prctl08 +prctl09 prctl09 pread01 pread01 pread01_64 pread01_64 diff --git a/testcases/kernel/syscalls/prctl/.gitignore b/testcases/kernel/syscalls/prctl/.gitignore index fe36a8e0f..0f2c9b194 100644 --- a/testcases/kernel/syscalls/prctl/.gitignore +++ b/testcases/kernel/syscalls/prctl/.gitignore @@ -7,3 +7,4 @@ /prctl06_execve /prctl07 /prctl08 +/prctl09 diff --git a/testcases/kernel/syscalls/prctl/Makefile b/testcases/kernel/syscalls/prctl/Makefile index cf19507c0..c02b6d1de 100644 --- a/testcases/kernel/syscalls/prctl/Makefile +++ b/testcases/kernel/syscalls/prctl/Makefile @@ -21,5 +21,5 @@ top_srcdir ?= ../../../.. include $(top_srcdir)/include/mk/testcases.mk prctl07: LDLIBS += $(CAP_LIBS) - +prctl09: LDLIBS += -lrt include $(top_srcdir)/include/mk/generic_leaf_target.mk diff --git a/testcases/kernel/syscalls/prctl/prctl09.c b/testcases/kernel/syscalls/prctl/prctl09.c new file mode 100644 index 000000000..e4d76ef85 --- /dev/null +++ b/testcases/kernel/syscalls/prctl/prctl09.c @@ -0,0 +1,47 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2019 FUJITSU LIMITED. All rights reserved. + * Author: Yang Xu + */ + +/* + * Test Description: + * This is a timer sampling tests that timer slack is 200us. + */ + +#include +#include +#include "lapi/prctl.h" +#include "tst_timer_test.h" + +int sample_fn(int clk_id, long long usec) +{ + struct timespec t = tst_us_to_timespec(usec); + + tst_timer_start(clk_id); + TEST(nanosleep(&t, NULL)); + tst_timer_stop(); + tst_timer_sample(); + + if (TST_RET != 0) { + tst_res(TFAIL | TTERRNO, + "nanosleep() returned %li", TST_RET); + return 1; + } + + return 0; +} + +static void setup(void) +{ + TEST(prctl(PR_SET_TIMERSLACK, 200000)); + if (TST_RET != 0) + tst_brk(TBROK | TTERRNO, + "prctl set timerslack 200us failed"); +} + +static struct tst_test test = { + .setup = setup, + .scall = "prctl()", + .sample = sample_fn, +}; -- 2.18.0