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linux: Add process_madvise 

It was added on Linux 5.10 (ecb8ac8b1f146915aa6b96449b66dd48984caacc)
with the same functionality as madvise but using a pidfd of the target
process.

Checked on x86_64-linux-gnu and i686-linux-gnu.

Reviewed-by: Carlos O'Donell <carlos@redhat.com>
This commit is contained in:
Adhemerval Zanella 2022-01-26 16:05:31 -03:00
parent 7d3e91ba19
commit d19ee3473d
42 changed files with 243 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
NEWS
View File

@ -20,6 +20,10 @@ Major new features:
have been added. The pidfd functionality provides access to a process
while avoiding the issue of PID reuse on tranditional Unix systems.
* On Linux, the process_madvise function has been added. It has the
same functionality as madvise but alters the target process identified
by the pidfd.
Deprecated and removed features, and other changes affecting compatibility:
* Support for prelink will be removed in the next release; this includes

21
bits/mman_ext.h Normal file
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@ -0,0 +1,21 @@
/* System-specific extensions of <sys/mman.h>, generic version.
Copyright (C) 2022 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/>. */
#ifndef _SYS_MMAN_H
# error "Never include <bits/mman_ext.h> directly; use <sys/mman.h> instead."
#endif

3
misc/sys/mman.h
View File

@ -146,6 +146,9 @@ extern int shm_open (const char *__name, int __oflag, mode_t __mode);
/* Remove shared memory segment. */
extern int shm_unlink (const char *__name);
/* System-specific extensions. */
#include <bits/mman_ext.h>
__END_DECLS
#endif /* sys/mman.h */

2
posix/Makefile
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@ -32,7 +32,7 @@ headers := sys/utsname.h sys/times.h sys/wait.h sys/types.h unistd.h \
bits/waitflags.h bits/waitstatus.h sys/unistd.h sched.h \
bits/sched.h bits/cpu-set.h re_comp.h wait.h bits/environments.h \
cpio.h spawn.h bits/unistd.h bits/types/struct_sched_param.h \
bits/unistd_ext.h bits/types/idtype_t.h
bits/unistd_ext.h bits/types/idtype_t.h bits/mman_ext.h
routines := \
uname \

5
sysdeps/unix/sysv/linux/Makefile
View File

@ -131,6 +131,11 @@ tests += tst-clone tst-clone2 tst-clone3 tst-fanotify tst-personality \
tst-pidfd \
# tests
# process_madvise requires CAP_SYS_ADMIN.
xtests += \
tst-process_madvise \
# xtests
# For +depfiles in Makerules.
extra-test-objs += tst-sysconf-iov_max-uapi.o

1
sysdeps/unix/sysv/linux/Versions
View File

@ -303,6 +303,7 @@ libc {
pidfd_open;
pidfd_getfd;
pidfd_send_signal;
process_madvise;
}
GLIBC_PRIVATE {
# functions used in other libraries

1
sysdeps/unix/sysv/linux/aarch64/libc.abilist
View File

@ -2619,3 +2619,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/alpha/libc.abilist
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@ -2716,6 +2716,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/arc/libc.abilist
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@ -2380,3 +2380,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/arm/be/libc.abilist
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@ -499,6 +499,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

1
sysdeps/unix/sysv/linux/arm/le/libc.abilist
View File

@ -496,6 +496,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0xa0
GLIBC_2.4 _IO_2_1_stdin_ D 0xa0

33
sysdeps/unix/sysv/linux/bits/mman_ext.h Normal file
View File

@ -0,0 +1,33 @@
/* System-specific extensions of <sys/mman.h>, Linux version.
Copyright (C) 2022 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/>. */
#ifndef _SYS_MMAN_H
# error "Never include <bits/mman_ext.h> directly; use <sys/mman.h> instead."
#endif
#ifdef __USE_GNU
#include <bits/types/struct_iovec.h>
/*
*/
extern __ssize_t process_madvise (int __pid_fd, const struct iovec* __iov,
size_t __count, int __advice,
unsigned __flags)
__THROW;
#endif /* __USE_GNU */

1
sysdeps/unix/sysv/linux/csky/libc.abilist
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@ -2655,3 +2655,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/hppa/libc.abilist
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@ -2604,6 +2604,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/i386/libc.abilist
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@ -2788,6 +2788,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/ia64/libc.abilist
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@ -2554,6 +2554,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
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@ -500,6 +500,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _Exit F
GLIBC_2.4 _IO_2_1_stderr_ D 0x98
GLIBC_2.4 _IO_2_1_stdin_ D 0x98

1
sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
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@ -2731,6 +2731,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
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@ -2704,3 +2704,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
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@ -2701,3 +2701,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
View File

@ -2696,6 +2696,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
View File

@ -2694,6 +2694,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
View File

@ -2702,6 +2702,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
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@ -2605,6 +2605,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/nios2/libc.abilist
View File

@ -2743,3 +2743,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/or1k/libc.abilist
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@ -2126,3 +2126,4 @@ GLIBC_2.35 wscanf F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
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@ -2758,6 +2758,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
View File

@ -2791,6 +2791,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
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@ -2513,6 +2513,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
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@ -2815,3 +2815,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
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@ -2382,3 +2382,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
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@ -2582,3 +2582,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F

1
sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
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@ -2756,6 +2756,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
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@ -2550,6 +2550,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/sh/be/libc.abilist
View File

@ -2611,6 +2611,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/sh/le/libc.abilist
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@ -2608,6 +2608,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
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@ -2751,6 +2751,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 _IO_fprintf F
GLIBC_2.4 _IO_printf F
GLIBC_2.4 _IO_sprintf F

1
sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
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@ -2577,6 +2577,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/syscalls.list
View File

@ -43,6 +43,7 @@ pidfd_open EXTRA pidfd_open i:iU pidfd_open
pidfd_getfd EXTRA pidfd_getfd i:iiU pidfd_getfd
pivot_root EXTRA pivot_root i:ss pivot_root
pidfd_send_signal EXTRA pidfd_send_signal i:iiPU pidfd_send_signal
process_madvise EXTRA process_madvise i:iPniU process_madvise
query_module EXTRA query_module i:sipip __compat_query_module query_module@GLIBC_2.0:GLIBC_2.23
quotactl EXTRA quotactl i:isip quotactl
remap_file_pages - remap_file_pages i:pUiUi __remap_file_pages remap_file_pages

141
sysdeps/unix/sysv/linux/tst-process_madvise.c Normal file
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@ -0,0 +1,141 @@
/* Basic tests for Linux process_madvise.
Copyright (C) 2022 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/>. */
#include <array_length.h>
#include <errno.h>
#include <limits.h>
#include <stdlib.h>
#include <support/check.h>
#include <support/process_state.h>
#include <support/support.h>
#include <support/xsocket.h>
#include <support/xunistd.h>
#include <sys/mman.h>
#include <sys/pidfd.h>
#include <sys/wait.h>
/* The pair of sockets used for coordination. The subprocess uses
sockets[1]. */
static int sockets[2];
static long int page_size;
static void
exit_subprocess (int dummy)
{
exit (EXIT_FAILURE);
}
static void
subprocess (void)
{
/* In case something goes wrong with parent before pidfd_send_signal. */
support_create_timer (5, 0, false, exit_subprocess);
void *p1 = xmmap (NULL, page_size * 2, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1);
void *p2 = xmmap (NULL, page_size, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS, -1);
xmunmap(p2, page_size);
xsendto (sockets[1], &(struct iovec) { p1, page_size * 2 },
sizeof (struct iovec), 0, NULL, 0);
xsendto (sockets[1], &(struct iovec) { p2, page_size },
sizeof (struct iovec), 0, NULL, 0);
pause ();
_exit (0);
}
static int
do_test (void)
{
page_size = sysconf (_SC_PAGE_SIZE);
{
int r = pidfd_open (-1, 0);
TEST_COMPARE (r, -1);
if (errno == ENOSYS)
FAIL_UNSUPPORTED ("kernel does not support pidfd_open, skipping test");
TEST_COMPARE (errno, EINVAL);
}
TEST_COMPARE (socketpair (AF_UNIX, SOCK_STREAM, 0, sockets), 0);
pid_t pid = xfork ();
if (pid == 0)
{
xclose (sockets[0]);
subprocess ();
}
xclose (sockets[1]);
int pidfd = pidfd_open (pid, 0);
TEST_VERIFY (pidfd != -1);
/* The target process is going to send us two iovec's. The first one points
to a valid mapping, the other points to a previously valid mapping which
has now been unmapped. */
{
struct iovec iv;
xrecvfrom (sockets[0], &iv, sizeof (iv), 0, NULL, 0);
/* We expect this to succeed in the target process because the mapping
is valid. */
TEST_COMPARE (process_madvise (pidfd, &iv, 1, MADV_COLD, 0),
2 * page_size);
}
{
struct iovec iv;
xrecvfrom (sockets[0], &iv, sizeof (iv), 0, NULL, 0);
/* We expect this to fail in the target process because the second iovec
points to an unmapped region. The target process arranges for this to
be the case. */
TEST_COMPARE (process_madvise (pidfd, &iv, 1, MADV_COLD, 0), -1);
TEST_COMPARE (errno, ENOMEM);
}
{
struct iovec iv[IOV_MAX + 1];
TEST_COMPARE (process_madvise (pidfd, iv, array_length (iv), MADV_COLD,
0), -1);
TEST_COMPARE (errno, EINVAL);
}
TEST_COMPARE (pidfd_send_signal (pidfd, SIGKILL, NULL, 0), 0);
{
siginfo_t info;
int r = waitid (P_PIDFD, pidfd, &info, WEXITED);
TEST_COMPARE (r, 0);
TEST_COMPARE (info.si_status, SIGKILL);
TEST_COMPARE (info.si_code, CLD_KILLED);
}
TEST_COMPARE (pidfd_send_signal (pidfd, SIGKILL, NULL, 0), -1);
TEST_COMPARE (errno, ESRCH);
return 0;
}
#include <support/test-driver.c>

1
sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
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@ -2528,6 +2528,7 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F
GLIBC_2.4 __confstr_chk F
GLIBC_2.4 __fgets_chk F
GLIBC_2.4 __fgets_unlocked_chk F

1
sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
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@ -2634,3 +2634,4 @@ GLIBC_2.35 posix_spawn_file_actions_addtcsetpgrp_np F
GLIBC_2.36 pidfd_getfd F
GLIBC_2.36 pidfd_open F
GLIBC_2.36 pidfd_send_signal F
GLIBC_2.36 process_madvise F