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| author | Adhemerval Zanella Netto <adhemerval.zanella@linaro.org> | 2023-08-24 13:42:17 -0300 |
|---|---|---|
| committer | Adhemerval Zanella <adhemerval.zanella@linaro.org> | 2023-09-05 13:08:48 -0300 |
| commit | ce2bfb856987526c2f27fb934b5eedd70d3472d7 (patch) | |
| tree | 8ed44c62c873017fea57dcabb55b0d3eda0550a3 /sysdeps/unix/sysv/linux/powerpc | |
| parent | ad77b1bcca2499f422528c0af4b6f5565512d8bd (diff) | |
| download | glibc-ce2bfb856987526c2f27fb934b5eedd70d3472d7.tar.gz glibc-ce2bfb856987526c2f27fb934b5eedd70d3472d7.tar.xz glibc-ce2bfb856987526c2f27fb934b5eedd70d3472d7.zip | |
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>
Diffstat (limited to 'sysdeps/unix/sysv/linux/powerpc')
4 files changed, 8 insertions, 0 deletions
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist index 19c4c325b0..cadb16c12f 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist @@ -2825,6 +2825,8 @@ GLIBC_2.38 strlcat F GLIBC_2.38 strlcpy F GLIBC_2.38 wcslcat F GLIBC_2.38 wcslcpy F +GLIBC_2.39 posix_spawnattr_getcgroup_np F +GLIBC_2.39 posix_spawnattr_setcgroup_np F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist index 3e043c4044..50c5b99728 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist @@ -2858,6 +2858,8 @@ GLIBC_2.38 strlcat F GLIBC_2.38 strlcpy F GLIBC_2.38 wcslcat F GLIBC_2.38 wcslcpy F +GLIBC_2.39 posix_spawnattr_getcgroup_np F +GLIBC_2.39 posix_spawnattr_setcgroup_np F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist index e4f3a766bb..81c63385af 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist @@ -2579,6 +2579,8 @@ GLIBC_2.38 strlcat F GLIBC_2.38 strlcpy F GLIBC_2.38 wcslcat F GLIBC_2.38 wcslcpy F +GLIBC_2.39 posix_spawnattr_getcgroup_np F +GLIBC_2.39 posix_spawnattr_setcgroup_np F GLIBC_2.4 _IO_fprintf F GLIBC_2.4 _IO_printf F GLIBC_2.4 _IO_sprintf F diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist index dafe1c4a59..af9be18108 100644 --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist @@ -2893,3 +2893,5 @@ GLIBC_2.38 strlcat F GLIBC_2.38 strlcpy F GLIBC_2.38 wcslcat F GLIBC_2.38 wcslcpy F +GLIBC_2.39 posix_spawnattr_getcgroup_np F +GLIBC_2.39 posix_spawnattr_setcgroup_np F |