[PATCH v2 02/15] linux: Add pidfd_getfd
Carlos O'Donell
carlos@redhat.com
Mon May 16 21:12:38 GMT 2022
On 2/7/22 12:44, Adhemerval Zanella via Libc-alpha wrote:
> This was added on Linux 5.6 (8649c322f75c96e7ced2fec201e123b2b073bf09)
> as a way to retrieve a file descriptors for another process though
> pidfd (created either with CLONE_PIDFD or pidfd_getfd). The
> functionality is similar to recvmmsg SCM_RIGHTS.
The only ABI parts are: the function name, integer values for the pidfd and
targetfd, unsigned int flags, and flags has no constants today (reserved).
OK modulo the same NEWS issue discussed in patch 1.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
Tested-by: Carlos O'Donell <carlos@redhat.com>
> ---
> NEWS | 5 +++--
> sysdeps/generic/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/Versions | 1 +
> sysdeps/unix/sysv/linux/aarch64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/alpha/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/arc/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/arm/be/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/arm/le/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/csky/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/hppa/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/i386/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/ia64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/microblaze/be/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/microblaze/le/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/nios2/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/or1k/libc.abilist | 1 +
> .../unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist | 1 +
> .../unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/sh/be/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/sh/le/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/sys/pidfd.h | 8 ++++++++
> sysdeps/unix/sysv/linux/syscalls.list | 1 +
> sysdeps/unix/sysv/linux/x86_64/64/libc.abilist | 1 +
> sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist | 1 +
> 38 files changed, 47 insertions(+), 2 deletions(-)
>
> diff --git a/NEWS b/NEWS
> index daae9a9646..c28cc28b52 100644
> --- a/NEWS
> +++ b/NEWS
> @@ -9,8 +9,9 @@ Version 2.36
>
> Major new features:
>
> -* On Linux, the pidfd_open function has been added. The pidfd functionality
> - to solve the issue of PID reuse in Unix systems.
> +* On Linux, the pidfd_open and pidfd_getfd functions have been added.
> + The pidfd functionality help to solve the issue of PID reuse in Unix
> + systems.
OK. Modulo difference in first patch.
>
> Deprecated and removed features, and other changes affecting compatibility:
>
> diff --git a/sysdeps/generic/libc.abilist b/sysdeps/generic/libc.abilist
> index e69de29bb2..baeb89089a 100644
> --- a/sysdeps/generic/libc.abilist
> +++ b/sysdeps/generic/libc.abilist
> @@ -0,0 +1 @@
> +GLIBC_2.36 pidfd_getfd F
> diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
> index 4516a8f8f4..78912c0484 100644
> --- a/sysdeps/unix/sysv/linux/Versions
> +++ b/sysdeps/unix/sysv/linux/Versions
> @@ -301,6 +301,7 @@ libc {
> }
> GLIBC_2.36 {
> pidfd_open;
> + pidfd_getfd;
OK.
> }
> GLIBC_PRIVATE {
> # functions used in other libraries
> diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
> index 771d580bd9..1acaa31519 100644
> --- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
> @@ -2616,4 +2616,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
> index a9c4e5b1d2..fa2018b88a 100644
> --- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
> @@ -2713,6 +2713,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
> index e147803167..4ed3f76c4f 100644
> --- a/sysdeps/unix/sysv/linux/arc/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
> @@ -2377,4 +2377,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
> index 4d1695e4a4..edc7cf524e 100644
> --- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
> @@ -496,6 +496,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _Exit F
> GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
> diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
> index 600e8a977a..6554476cd2 100644
> --- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
> @@ -493,6 +493,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _Exit F
> GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
> diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
> index be1671372a..201ec9a966 100644
> --- a/sysdeps/unix/sysv/linux/csky/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
> @@ -2652,4 +2652,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
> index 7d09b909cd..116369f238 100644
> --- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
> @@ -2601,6 +2601,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
> index 89da416c37..2c5aea2d0d 100644
> --- a/sysdeps/unix/sysv/linux/i386/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
> @@ -2785,6 +2785,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/ia64/libc.abilist b/sysdeps/unix/sysv/linux/ia64/libc.abilist
> index 4e4faed24b..4bb67cc684 100644
> --- a/sysdeps/unix/sysv/linux/ia64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/ia64/libc.abilist
> @@ -2551,6 +2551,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
> index 83f61f95fd..dbe82628b0 100644
> --- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
> @@ -497,6 +497,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _Exit F
> GLIBC_2.4 _IO_2_1_stderr_ D 0x98
> diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
> index 9f815f8b99..e42d47632e 100644
> --- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
> @@ -2728,6 +2728,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
> index d758594032..0b79ff3a37 100644
> --- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
> @@ -2701,4 +2701,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
> index 6d9d415936..d2f0713d1f 100644
> --- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
> @@ -2698,4 +2698,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
> index b31f7b88cd..382852234f 100644
> --- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
> @@ -2693,6 +2693,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
> index 98ebcbdcbc..cb02b6df77 100644
> --- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
> @@ -2691,6 +2691,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
> index e6bae7d52d..7e62a8b7fc 100644
> --- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
> @@ -2699,6 +2699,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
> index 19f575d22d..63840726fe 100644
> --- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
> @@ -2602,6 +2602,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
> index 04779199c2..e4608208a8 100644
> --- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
> @@ -2740,4 +2740,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist
> index df6ecdec8b..97c37b3f52 100644
> --- a/sysdeps/unix/sysv/linux/or1k/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist
> @@ -2123,4 +2123,5 @@ GLIBC_2.35 wprintf F
> GLIBC_2.35 write F
> GLIBC_2.35 writev F
> GLIBC_2.35 wscanf F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
> index b618808e13..0d017c3119 100644
> --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
> @@ -2755,6 +2755,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
> index 19eb5c4576..5e61dfbd78 100644
> --- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
> @@ -2788,6 +2788,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
> index a54d3a16a2..a7ddc5022e 100644
> --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
> @@ -2510,6 +2510,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
> index e829f4fb42..78117f1dea 100644
> --- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
> @@ -2812,4 +2812,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
> index 2f0c9a81d2..8d935d09aa 100644
> --- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
> @@ -2379,4 +2379,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
> index e4b61e880a..f373fa0e25 100644
> --- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
> @@ -2579,4 +2579,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
> index b7ee961dd6..33a00c0a03 100644
> --- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
> @@ -2753,6 +2753,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
> index 53d49565b3..32c3e171ad 100644
> --- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
> @@ -2547,6 +2547,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
> index 2179df05fa..acc7b4a3b7 100644
> --- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
> @@ -2608,6 +2608,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
> index bbf00df5eb..10c0727830 100644
> --- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
> @@ -2605,6 +2605,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
> index e452cf8c88..1c389b2fa9 100644
> --- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
> @@ -2748,6 +2748,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 _IO_fprintf F
> GLIBC_2.4 _IO_printf F
> diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
> index 0c401996f8..4c49c781e0 100644
> --- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
> @@ -2574,6 +2574,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/sys/pidfd.h b/sysdeps/unix/sysv/linux/sys/pidfd.h
> index dab2710a91..7194fc2a14 100644
> --- a/sysdeps/unix/sysv/linux/sys/pidfd.h
> +++ b/sysdeps/unix/sysv/linux/sys/pidfd.h
> @@ -30,4 +30,12 @@
> as 0. */
> extern int pidfd_open (__pid_t __pid, unsigned int __flags) __THROW;
>
> +/* Duplicates an existing file descriptor TARGETFD in the process referred
> + by the PIDFD file descriptor PIDFD.
> +
> + The FLAGS argument is reserved for future use, it must be specified
> + as 0. */
> +extern int pidfd_getfd (int __pidfd, int __targetfd,
> + unsigned int __flags) __THROW;
OK. int, int, unsigned int. Matches.
> +
> #endif /* _PIDFD_H */
> diff --git a/sysdeps/unix/sysv/linux/syscalls.list b/sysdeps/unix/sysv/linux/syscalls.list
> index 296dccbcb0..5dd7a12b76 100644
> --- a/sysdeps/unix/sysv/linux/syscalls.list
> +++ b/sysdeps/unix/sysv/linux/syscalls.list
> @@ -40,6 +40,7 @@ munlockall - munlockall i: munlockall
> nfsservctl EXTRA nfsservctl i:ipp __compat_nfsservctl nfsservctl@GLIBC_2.0:GLIBC_2.28
> pipe2 - pipe2 i:fi __pipe2 pipe2
> pidfd_open EXTRA pidfd_open i:iU pidfd_open
> +pidfd_getfd EXTRA pidfd_getfd i:iiU pidfd_getfd
OK. Defined syscall.
> pivot_root EXTRA pivot_root i:ss pivot_root
> query_module EXTRA query_module i:sipip __compat_query_module query_module@GLIBC_2.0:GLIBC_2.23
> quotactl EXTRA quotactl i:isip quotactl
> diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
> index 0148a68853..cef6e65933 100644
> --- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
> @@ -2525,6 +2525,7 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
> GLIBC_2.4 __confstr_chk F
> GLIBC_2.4 __fgets_chk F
> diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
> index 0efc2676c3..4ac98b6823 100644
> --- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
> +++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
> @@ -2631,4 +2631,5 @@ GLIBC_2.35 __memcmpeq F
> GLIBC_2.35 _dl_find_object F
> GLIBC_2.35 epoll_pwait2 F
> GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
> +GLIBC_2.36 pidfd_getfd F
> GLIBC_2.36 pidfd_open F
--
Cheers,
Carlos.
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