diff options
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 10 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/sched.h | 14 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-sched-consts.py | 56 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/tst-sched_setattr.c | 2 |
4 files changed, 82 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index 0b45d4e..7df51a3 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -398,6 +398,16 @@ $(objpfx)tst-mount-compile.out: ../sysdeps/unix/sysv/linux/tst-mount-compile.py < /dev/null > $@ 2>&1; $(evaluate-test) $(objpfx)tst-mount-compile.out: $(sysdeps-linux-python-deps) +tests-special += \ + $(objpfx)tst-sched-consts.out \ + # tests-special +$(objpfx)tst-sched-consts.out: ../sysdeps/unix/sysv/linux/tst-sched-consts.py + $(sysdeps-linux-python) \ + ../sysdeps/unix/sysv/linux/tst-sched-consts.py \ + $(sysdeps-linux-python-cc) \ + < /dev/null > $@ 2>&1; $(evaluate-test) +$(objpfx)tst-sched-consts.out: $(sysdeps-linux-python-deps) + tst-rseq-disable-ENV = GLIBC_TUNABLES=glibc.pthread.rseq=0 endif # $(subdir) == misc diff --git a/sysdeps/unix/sysv/linux/bits/sched.h b/sysdeps/unix/sysv/linux/bits/sched.h index e5b7efb..a02cb69 100644 --- a/sysdeps/unix/sysv/linux/bits/sched.h +++ b/sysdeps/unix/sysv/linux/bits/sched.h @@ -29,6 +29,7 @@ #define SCHED_FIFO 1 #define SCHED_RR 2 #ifdef __USE_GNU +# define SCHED_NORMAL SCHED_OTHER # define SCHED_BATCH 3 # define SCHED_ISO 4 # define SCHED_IDLE 5 @@ -37,6 +38,19 @@ /* Flags that can be used in policy values. */ # define SCHED_RESET_ON_FORK 0x40000000 +/* Flags for the sched_flags field in struct sched_attr. */ +#define SCHED_FLAG_RESET_ON_FORK 0x01 +#define SCHED_FLAG_RECLAIM 0x02 +#define SCHED_FLAG_DL_OVERRUN 0x04 +#define SCHED_FLAG_KEEP_POLICY 0x08 +#define SCHED_FLAG_KEEP_PARAMS 0x10 +#define SCHED_FLAG_UTIL_CLAMP_MIN 0x20 +#define SCHED_FLAG_UTIL_CLAMP_MAX 0x40 + +/* Combinations of sched_flags fields. */ +#define SCHED_FLAG_KEEP_ALL 0x18 +#define SCHED_FLAG_UTIL_CLAMP 0x60 + /* Use "" to work around incorrect macro expansion of the __has_include argument (GCC PR 80005). */ # ifdef __has_include diff --git a/sysdeps/unix/sysv/linux/tst-sched-consts.py b/sysdeps/unix/sysv/linux/tst-sched-consts.py new file mode 100644 index 0000000..70071dc --- /dev/null +++ b/sysdeps/unix/sysv/linux/tst-sched-consts.py @@ -0,0 +1,56 @@ +#!/usr/bin/python3 +# Test that glibc's sched.h constants match the kernel's. +# Copyright (C) 2018-2024 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 +# <https://www.gnu.org/licenses/>. + +import argparse +import sys + +import glibcextract +import glibcsyscalls + + +def main(): + """The main entry point.""" + parser = argparse.ArgumentParser( + description="Test that glibc's sched.h constants " + "match the kernel's.") + parser.add_argument('--cc', metavar='CC', + help='C compiler (including options) to use') + args = parser.parse_args() + linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc) + linux_version_glibc = (6, 10) + sys.exit(glibcextract.compare_macro_consts( + '#define _GNU_SOURCE 1\n' + '#include <sched.h>\n', + '#define _GNU_SOURCE 1\n' + '#include <linux/sched.h>\n' + '#include <linux/sched/types.h>\n', + args.cc, + 'SCHED_.*', + # SCHED_ISO is reserved, but not implemented in the kernel. + # SCHED_OTHER is the standard name for SCHED_NORMAL. + # SCHED_FLAG_ALL will receive more and more flags, so + # exposing it to userspace does not seem useful. + 'SCHED_ISO' + '|SCHED_OTHER' + '|SCHED_FLAG_ALL', + linux_version_glibc > linux_version_headers, + linux_version_headers > linux_version_glibc)) + +if __name__ == '__main__': + main() diff --git a/sysdeps/unix/sysv/linux/tst-sched_setattr.c b/sysdeps/unix/sysv/linux/tst-sched_setattr.c index a6288a1..fbb73c3 100644 --- a/sysdeps/unix/sysv/linux/tst-sched_setattr.c +++ b/sysdeps/unix/sysv/linux/tst-sched_setattr.c @@ -44,6 +44,8 @@ check_unused (void) static int do_test (void) { + _Static_assert (SCHED_OTHER == SCHED_NORMAL, + "SCHED_OTHER, SCHED_NORMAL values"); TEST_VERIFY (sizeof (struct sched_attr) < sizeof (u)); /* Check that reading and re-applying the current policy works. */ |