diff options
| author | Thomas Weißschuh <thomas.weissschuh@linutronix.de> | 2025-04-28 14:40:13 +0200 |
|---|---|---|
| committer | Thomas Weißschuh <linux@weissschuh.net> | 2025-05-21 15:32:12 +0200 |
| commit | 256dc7339d466f4d928be48ced6d590a99d447cc (patch) | |
| tree | 64c2f3f6123eafc6ec5cbee580bd245c34a22e90 /tools/include/nolibc | |
| parent | 7ff3c71a4795f524b4dc643db4d00d4467be26a0 (diff) | |
tools/nolibc: add namespace functionality
This is used in various selftests and will be handy when integrating
those with nolibc.
Not all configurations support namespaces, so skip the tests where
necessary. Also if the tests are running without privileges.
Enable the namespace configuration for those architectures where it is not
enabled by default.
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Acked-by: Willy Tarreau <w@1wt.eu>
Link: https://lore.kernel.org/r/20250428-nolibc-misc-v2-12-3c043eeab06c@linutronix.de
Signed-off-by: Thomas Weißschuh <linux@weissschuh.net>
Diffstat (limited to 'tools/include/nolibc')
| -rw-r--r-- | tools/include/nolibc/Makefile | 1 | ||||
| -rw-r--r-- | tools/include/nolibc/nolibc.h | 1 | ||||
| -rw-r--r-- | tools/include/nolibc/sched.h | 50 |
3 files changed, 52 insertions, 0 deletions
diff --git a/tools/include/nolibc/Makefile b/tools/include/nolibc/Makefile index 58c4ede9c294..9ff78ae21522 100644 --- a/tools/include/nolibc/Makefile +++ b/tools/include/nolibc/Makefile @@ -38,6 +38,7 @@ all_files := \ math.h \ nolibc.h \ poll.h \ + sched.h \ signal.h \ stackprotector.h \ std.h \ diff --git a/tools/include/nolibc/nolibc.h b/tools/include/nolibc/nolibc.h index 37a55f703dfc..51c423a36b59 100644 --- a/tools/include/nolibc/nolibc.h +++ b/tools/include/nolibc/nolibc.h @@ -106,6 +106,7 @@ #include "sys/wait.h" #include "ctype.h" #include "elf.h" +#include "sched.h" #include "signal.h" #include "unistd.h" #include "stdio.h" diff --git a/tools/include/nolibc/sched.h b/tools/include/nolibc/sched.h new file mode 100644 index 000000000000..32221562c166 --- /dev/null +++ b/tools/include/nolibc/sched.h @@ -0,0 +1,50 @@ +/* SPDX-License-Identifier: LGPL-2.1 OR MIT */ +/* + * sched function definitions for NOLIBC + * Copyright (C) 2025 Thomas Weißschuh <linux@weissschuh.net> + */ + +/* make sure to include all global symbols */ +#include "nolibc.h" + +#ifndef _NOLIBC_SCHED_H +#define _NOLIBC_SCHED_H + +#include "sys.h" + +#include <linux/sched.h> + +/* + * int setns(int fd, int nstype); + */ + +static __attribute__((unused)) +int sys_setns(int fd, int nstype) +{ + return my_syscall2(__NR_setns, fd, nstype); +} + +static __attribute__((unused)) +int setns(int fd, int nstype) +{ + return __sysret(sys_setns(fd, nstype)); +} + + +/* + * int unshare(int flags); + */ + +static __attribute__((unused)) +int sys_unshare(int flags) +{ + return my_syscall1(__NR_unshare, flags); +} + +static __attribute__((unused)) +int unshare(int flags) +{ + return __sysret(sys_unshare(flags)); +} + +#endif /* _NOLIBC_SCHED_H */ |