From cbd463e2cfc94d8cf74d17f17a9c572c272b9376 Mon Sep 17 00:00:00 2001 From: Roland McGrath Date: Wed, 19 Nov 2014 17:28:31 -0800 Subject: Test that pthread_create diagnoses invalid scheduling parameters. --- ChangeLog | 5 +++ nptl/Makefile | 3 +- nptl/tst-bad-schedattr.c | 97 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 104 insertions(+), 1 deletion(-) create mode 100644 nptl/tst-bad-schedattr.c diff --git a/ChangeLog b/ChangeLog index 2fa59cfcc0..239c9fec6b 100644 --- a/ChangeLog +++ b/ChangeLog @@ -1,3 +1,8 @@ +2014-11-19 Roland McGrath + + * nptl/tst-bad-schedattr.c: New file. + * nptl/Makefile (tests): Add it. + 2014-11-19 Carlos O'Donell Florian Weimer Joseph Myers diff --git a/nptl/Makefile b/nptl/Makefile index 157fe62e02..86a1b0cf10 100644 --- a/nptl/Makefile +++ b/nptl/Makefile @@ -270,7 +270,8 @@ tests = tst-typesizes \ tst-vfork1 tst-vfork2 tst-vfork1x tst-vfork2x \ tst-getpid1 tst-getpid2 tst-getpid3 \ tst-setuid3 \ - tst-initializers1 $(patsubst %,tst-initializers1-%,c89 gnu89 c99 gnu99) + tst-initializers1 $(addprefix tst-initializers1-,c89 gnu89 c99 gnu99) \ + tst-bad-schedattr xtests = tst-setuid1 tst-setuid1-static tst-setuid2 \ tst-mutexpp1 tst-mutexpp6 tst-mutexpp10 test-srcs = tst-oddstacklimit diff --git a/nptl/tst-bad-schedattr.c b/nptl/tst-bad-schedattr.c new file mode 100644 index 0000000000..d3d4522431 --- /dev/null +++ b/nptl/tst-bad-schedattr.c @@ -0,0 +1,97 @@ +/* Test that pthread_create diagnoses invalid scheduling parameters. + Copyright (C) 2014 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library 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 + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + . */ + +#include +#include +#include +#include +#include +#include + + +static void * +thread_function (void *arg) +{ + abort (); +} + + +static int +do_test (void) +{ +#if !defined SCHED_FIFO || !defined SCHED_OTHER + puts ("SCHED_FIFO or SCHED_OTHER not available at compile time"); + return 0; /* 77 */ +#else + + int err; + +#define TRY(func, arglist) \ + if ((err = func arglist) != 0) \ + { \ + printf ("%s: %s\n", #func, strerror (err)); \ + return 2; \ + } + + int fifo_max = sched_get_priority_max (SCHED_FIFO); + if (fifo_max == -1) + { + assert (errno == ENOTSUP || errno == ENOSYS); + puts ("SCHED_FIFO not supported, cannot test"); + return 0; /* 77 */ + } + + int other_max = sched_get_priority_max (SCHED_OTHER); + if (other_max == -1) + { + assert (errno == ENOTSUP || errno == ENOSYS); + puts ("SCHED_OTHER not supported, cannot test"); + return 0; /* 77 */ + } + + assert (fifo_max > other_max); + + pthread_attr_t attr; + TRY (pthread_attr_init, (&attr)); + TRY (pthread_attr_setinheritsched, (&attr, PTHREAD_EXPLICIT_SCHED)); + TRY (pthread_attr_setschedpolicy, (&attr, SCHED_FIFO)); + + /* This value is chosen so as to be valid for SCHED_FIFO but invalid for + SCHED_OTHER. */ + struct sched_param param = { .sched_priority = other_max + 1 }; + TRY (pthread_attr_setschedparam, (&attr, ¶m)); + + TRY (pthread_attr_setschedpolicy, (&attr, SCHED_OTHER)); + + /* Now ATTR has a sched_param that is invalid for its policy. */ + pthread_t th; + err = pthread_create (&th, &attr, &thread_function, NULL); + if (err != EINVAL) + { + printf ("pthread_create returned %d (%s), expected %d (EINVAL: %s)\n", + err, strerror (err), EINVAL, strerror (EINVAL)); + return 1; + } + + return 0; +#endif +} + + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" -- cgit v1.2.1