glibc/sysdeps/unix/sysv/linux/Versions
Adhemerval Zanella Netto ce2bfb8569 linux: Add posix_spawnattr_{get, set}cgroup_np (BZ 26371)
These functions allow to posix_spawn and posix_spawnp to use
CLONE_INTO_CGROUP with clone3, allowing the child process to
be created in a different cgroup version 2.  These are GNU
extensions that are available only for Linux, and also only
for the architectures that implement clone3 wrapper
(HAVE_CLONE3_WRAPPER).

To create a process on a different cgroupv2, one can use the:

  posix_spawnattr_t attr;
  posix_spawnattr_init (&attr);
  posix_spawnattr_setflags (&attr, POSIX_SPAWN_SETCGROUP);
  posix_spawnattr_setcgroup_np (&attr, cgroup);
  posix_spawn (...)

Similar to other posix_spawn flags, POSIX_SPAWN_SETCGROUP control
whether the cgroup file descriptor will be used or not with
clone3.

There is no fallback if either clone3 does not support the flag
or if the architecture does not provide the clone3 wrapper, in
this case posix_spawn returns EOPNOTSUPP.

Checked on x86_64-linux-gnu.

Reviewed-by: Florian Weimer <fweimer@redhat.com>
2023-09-05 13:08:48 -03:00

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%include <time64-compat.h>
libc {
GLIBC_2.0 {
# functions used in inline functions or macros
__cmsg_nxthdr;
# functions used in other libraries
__clone;
# helper functions
__errno_location;
# b*
bdflush;
# c*
clone; create_module;
# d*
delete_module;
# g*
get_kernel_syms; getresgid; getresuid;
# i*
init_module;
# k*
klogctl;
# l*
llseek;
# m*
mremap;
# n*
nfsservctl;
# p*
personality; prctl;
# q*
query_module; quotactl;
# s*
setfsgid; setfsuid;
# s*
setresgid; setresuid; swapoff; swapon; sysctl; sysinfo;
# u*
umount; uselib;
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
GLIBC_2.1 {
# functions used in inline functions or macros
__libc_sa_len;
# Since we have new signals this structure changed.
_sys_siglist; sys_siglist; sys_sigabbrev;
# New errlist.
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
# chown interface change.
chown;
# Change in pthread_attr_t.
pthread_attr_init;
# c*
capget; capset;
# n*
ntp_adjtime; ntp_gettime;
# u*
umount2;
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
GLIBC_2.2 {
# needed in other libraries.
__endmntent; __getmntent_r; __setmntent; __statfs; __sysctl;
# ipc ctl interface change.
semctl; shmctl; msgctl;
# Old symbol versions from libpthread.
__pread64;
__pwrite64;
lseek64;
open64;
pread;
pread64;
pwrite;
pwrite64;
}
GLIBC_2.2.1 {
# p*
pivot_root;
}
GLIBC_2.3 {
# r*
readahead;
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
GLIBC_2.3.2 {
# New kernel interfaces.
epoll_create; epoll_ctl; epoll_wait;
}
GLIBC_2.3.3 {
_sys_siglist;
gnu_dev_major;
gnu_dev_makedev;
gnu_dev_minor;
posix_fadvise64;
posix_fallocate64;
sys_sigabbrev;
sys_siglist;
# Changed timer_t. Only used by some 64-bit targets.
timer_create;
timer_delete;
timer_getoverrun;
timer_gettime;
timer_settime;
}
GLIBC_2.3.4 {
sched_getaffinity; sched_setaffinity;
}
GLIBC_2.4 {
inotify_init; inotify_add_watch; inotify_rm_watch;
unshare;
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
}
GLIBC_2.5 {
splice; tee; vmsplice;
}
GLIBC_2.6 {
epoll_pwait; sync_file_range; sched_getcpu;
}
GLIBC_2.7 {
eventfd; eventfd_read; eventfd_write; signalfd;
}
GLIBC_2.8 {
timerfd_create; timerfd_settime; timerfd_gettime;
}
GLIBC_2.9 {
epoll_create1; inotify_init1;
}
GLIBC_2.10 {
fallocate;
}
GLIBC_2.11 {
fallocate64;
}
GLIBC_2.12 {
_sys_errlist; sys_errlist; _sys_nerr; sys_nerr;
ntp_gettimex;
recvmmsg;
}
GLIBC_2.13 {
prlimit; prlimit64;
fanotify_init; fanotify_mark;
}
GLIBC_2.14 {
clock_adjtime;
name_to_handle_at; open_by_handle_at;
setns;
sendmmsg;
}
GLIBC_2.15 {
process_vm_readv; process_vm_writev;
}
GLIBC_2.27 {
memfd_create;
mlock2;
pkey_alloc; pkey_free; pkey_set; pkey_get; pkey_mprotect;
}
GLIBC_2.29 {
getcpu;
}
GLIBC_2.30 {
getdents64; gettid; tgkill;
}
GLIBC_2.32 {
}
GLIBC_2.34 {
%ifdef TIME64_NON_DEFAULT
# 64-bit time_t support
__adjtime64;
___adjtimex64;
__aio_suspend_time64;
__clock_adjtime64;
__clock_getres64;
__clock_gettime64;
__clock_nanosleep_time64;
__clock_settime64;
__cnd_timedwait64;
__ctime64;
__ctime64_r;
__difftime64;
__fcntl_time64;
__fstat64_time64;
__fstatat64_time64;
__futimens64;
__futimes64;
__futimesat64;
__fts64_open_time64;
__fts64_close_time64;
__fts64_read_time64;
__fts64_set_time64;
__fts64_children_time64;
__ftw64_time64;
__nftw64_time64;
__gai_suspend_time64;
__getitimer64;
__getrusage64;
__getsockopt64;
__gettimeofday64;
__glob64_time64;
__globfree64_time64;
__gmtime64;
__gmtime64_r;
__ioctl_time64;
__localtime64;
__localtime64_r;
__lstat64_time64;
__lutimes64;
__mktime64;
__mq_timedreceive_time64;
__mq_timedsend_time64;
__msgctl64;
__mtx_timedlock64;
__nanosleep64;
__nanosleep64;
__ntp_gettime64;
__ntp_gettimex64;
__ppoll64;
__prctl_time64;
__pselec64;
__pselect64;
__pthread_clockjoin_np64;
__pthread_cond_clockwait64;
__pthread_cond_timedwait64;
__pthread_mutex_clocklock64;
__pthread_mutex_timedlock64;
__pthread_rwlock_clockrdlock64;
__pthread_rwlock_clockwrlock64;
__pthread_rwlock_timedrdlock64;
__pthread_rwlock_timedwrlock64;
__pthread_timedjoin_np64;
__recvmmsg64;
__recvmsg64;
__sched_rr_get_interval64;
__select64;
__sem_clockwait64;
__semctl64;
__semtimedop64;
__sem_timedwait64;
__sendmmsg64;
__sendmsg64;
__setitimer64;
__setsockopt64;
__settimeofday64;
__shmctl64;
__sigtimedwait64;
__stat64_time64;
__thrd_sleep64;
__time64;
__timegm64;
__timer_gettime64;
__timer_settime64;
__timerfd_gettime64;
__timerfd_settime64;
__timespec_get64;
__timespec_getres64;
__utime64;
__utimensat64;
__utimes64;
__utimes64;
__wait3_time64;
__wait4_time64;
%endif
close_range;
}
GLIBC_2.35 {
%ifdef TIME64_NON_DEFAULT
__epoll_pwait2_time64;
%endif
epoll_pwait2;
}
GLIBC_2.36 {
fsconfig;
fsmount;
fsopen;
fspick;
move_mount;
mount_setattr;
open_tree;
pidfd_open;
pidfd_getfd;
pidfd_send_signal;
process_madvise;
process_mrelease;
}
GLIBC_2.37 {
%ifdef TIME64_NON_DEFAULT
__ppoll64_chk;
%endif
}
GLIBC_2.39 {
posix_spawnattr_getcgroup_np;
posix_spawnattr_setcgroup_np;
}
GLIBC_PRIVATE {
# functions used in other libraries
__syscall_rt_sigqueueinfo;
__open_nocancel;
__read_nocancel;
__pread64_nocancel;
__close_nocancel;
__sigtimedwait;
# functions used by nscd
__netlink_assert_response;
}
}
librt {
GLIBC_2.3.3 {
# Leftover from the int -> timer_t transition. For ABIs that came later
# and do not have the symbol version, this version node is merged with
# the baseline version.
__librt_version_placeholder;
}
}
ld {
GLIBC_2.35 {
__rseq_flags;
__rseq_offset;
__rseq_size;
}
GLIBC_PRIVATE {
__nptl_change_stack_perm;
}
}