From: Adhemerval Zanella <adhemerval.zanella@linaro.org>
To: libc-alpha@sourceware.org
Cc: Stas Sergeev <stsp@users.sourceforge.net>
Subject: [PATCH] linux: Add openat2 (BZ 31664)
Date: Wed, 24 Apr 2024 14:38:26 -0300 [thread overview]
Message-ID: <20240424173826.2507003-1-adhemerval.zanella@linaro.org> (raw)
It was added on Linux 5.6, as an extension of openat. Different than
other open-like functions, the kernel only provides the LFS variant (so
files larger than 4GB always succeed, as other functions with offset
larger than off_t). Similar to other open functions, the new symbol is
a cancellable entrypoint.
The test case added only stresses some of the syscalls provided
functionalities and it is based on an existent kernel self-test. Since
the prototype does not use variadic arguments, there is no need to add a
fortify wrapper to catch wrong usages.
Checked on x86_64-linux-gnu.
---
NEWS | 4 +
sysdeps/unix/sysv/linux/Makefile | 14 +
sysdeps/unix/sysv/linux/Versions | 3 +
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/bits/fcntl-linux.h | 22 ++
sysdeps/unix/sysv/linux/bits/openat2.h | 61 +++++
sysdeps/unix/sysv/linux/csky/libc.abilist | 1 +
sysdeps/unix/sysv/linux/hppa/libc.abilist | 1 +
sysdeps/unix/sysv/linux/i386/libc.abilist | 1 +
.../sysv/linux/loongarch/lp64/libc.abilist | 1 +
.../sysv/linux/m68k/coldfire/libc.abilist | 1 +
.../unix/sysv/linux/m68k/m680x0/libc.abilist | 1 +
.../sysv/linux/microblaze/be/libc.abilist | 1 +
.../sysv/linux/microblaze/le/libc.abilist | 1 +
.../sysv/linux/mips/mips32/fpu/libc.abilist | 1 +
.../sysv/linux/mips/mips32/nofpu/libc.abilist | 1 +
.../sysv/linux/mips/mips64/n32/libc.abilist | 1 +
.../sysv/linux/mips/mips64/n64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/nios2/libc.abilist | 1 +
sysdeps/unix/sysv/linux/openat2.c | 29 ++
sysdeps/unix/sysv/linux/or1k/libc.abilist | 1 +
.../linux/powerpc/powerpc32/fpu/libc.abilist | 1 +
.../powerpc/powerpc32/nofpu/libc.abilist | 1 +
.../linux/powerpc/powerpc64/be/libc.abilist | 1 +
.../linux/powerpc/powerpc64/le/libc.abilist | 1 +
.../unix/sysv/linux/riscv/rv32/libc.abilist | 1 +
.../unix/sysv/linux/riscv/rv64/libc.abilist | 1 +
.../unix/sysv/linux/s390/s390-32/libc.abilist | 1 +
.../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 +
.../sysv/linux/sparc/sparc32/libc.abilist | 1 +
.../sysv/linux/sparc/sparc64/libc.abilist | 1 +
sysdeps/unix/sysv/linux/tst-openat2-consts.py | 63 +++++
sysdeps/unix/sysv/linux/tst-openat2.c | 259 ++++++++++++++++++
.../unix/sysv/linux/x86_64/64/libc.abilist | 1 +
.../unix/sysv/linux/x86_64/x32/libc.abilist | 1 +
41 files changed, 488 insertions(+)
create mode 100644 sysdeps/unix/sysv/linux/bits/openat2.h
create mode 100644 sysdeps/unix/sysv/linux/openat2.c
create mode 100755 sysdeps/unix/sysv/linux/tst-openat2-consts.py
create mode 100644 sysdeps/unix/sysv/linux/tst-openat2.c
diff --git a/NEWS b/NEWS
index cf6078cf20..eaaa02cb4e 100644
--- a/NEWS
+++ b/NEWS
@@ -26,6 +26,10 @@ Major new features:
more extensive verification tests for AT_SECURE programs and not meant to
be a security feature.
+* On Linux, the openat2 function has been added. It is an extension of
+ openat and provides a superset of its functionality. It is supported only
+ in LFS mode and as other open like it is a cancellable entrypoint.
+
Deprecated and removed features, and other changes affecting compatibility:
* Architectures which use a 32-bit seconds-since-epoch field in struct
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile
index 415aa1f14d..4ae8ec6dc6 100644
--- a/sysdeps/unix/sysv/linux/Makefile
+++ b/sysdeps/unix/sysv/linux/Makefile
@@ -133,6 +133,7 @@ sysdep_headers += \
bits/mman-linux.h \
bits/mman-map-flags-generic.h \
bits/mman-shared.h \
+ bits/openat2.h \
bits/procfs-extra.h \
bits/procfs-id.h \
bits/procfs-prregset.h \
@@ -591,6 +592,7 @@ sysdep_routines += \
internal_statvfs \
open64_nocancel \
open_nocancel \
+ openat2 \
openat64_nocancel \
openat_nocancel \
pread64_nocancel \
@@ -611,7 +613,19 @@ tests += \
tst-fallocate64 \
tst-getcwd-smallbuff \
tst-o_path-locks \
+ tst-openat2 \
# tests
+
+tests-special += \
+ $(objpfx)tst-openat2-consts.out \
+ # tests-special
+$(objpfx)tst-openat2-consts.out: ../sysdeps/unix/sysv/linux/tst-openat2-consts.py
+ $(sysdeps-linux-python) \
+ ../sysdeps/unix/sysv/linux/tst-openat2-consts.py \
+ $(sysdeps-linux-python-cc) \
+ < /dev/null > $@ 2>&1; $(evaluate-test)
+$(objpfx)tst-openat2-consts.out: $(sysdeps-linux-python-deps)
+
endif
ifeq ($(subdir),elf)
diff --git a/sysdeps/unix/sysv/linux/Versions b/sysdeps/unix/sysv/linux/Versions
index 268ba1b6ac..65da2b617a 100644
--- a/sysdeps/unix/sysv/linux/Versions
+++ b/sysdeps/unix/sysv/linux/Versions
@@ -328,6 +328,9 @@ libc {
posix_spawnattr_getcgroup_np;
posix_spawnattr_setcgroup_np;
}
+ GLIBC_2.40 {
+ openat2;
+ }
GLIBC_PRIVATE {
# functions used in other libraries
__syscall_rt_sigqueueinfo;
diff --git a/sysdeps/unix/sysv/linux/aarch64/libc.abilist b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
index 68eeca1c08..0b9bd8ae62 100644
--- a/sysdeps/unix/sysv/linux/aarch64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/aarch64/libc.abilist
@@ -2748,3 +2748,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/alpha/libc.abilist b/sysdeps/unix/sysv/linux/alpha/libc.abilist
index 34c187b721..c0bd27d617 100644
--- a/sysdeps/unix/sysv/linux/alpha/libc.abilist
+++ b/sysdeps/unix/sysv/linux/alpha/libc.abilist
@@ -3095,6 +3095,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/arc/libc.abilist b/sysdeps/unix/sysv/linux/arc/libc.abilist
index 916c18ea94..965438e7a7 100644
--- a/sysdeps/unix/sysv/linux/arc/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arc/libc.abilist
@@ -2509,3 +2509,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/arm/be/libc.abilist b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
index ea95de282a..e69ed8c903 100644
--- a/sysdeps/unix/sysv/linux/arm/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/be/libc.abilist
@@ -2801,6 +2801,7 @@ GLIBC_2.4 xdrstdio_create F
GLIBC_2.4 xencrypt F
GLIBC_2.4 xprt_register F
GLIBC_2.4 xprt_unregister F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/arm/le/libc.abilist b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
index 1cdbc983e1..70fd425869 100644
--- a/sysdeps/unix/sysv/linux/arm/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/arm/le/libc.abilist
@@ -2798,6 +2798,7 @@ GLIBC_2.4 xdrstdio_create F
GLIBC_2.4 xencrypt F
GLIBC_2.4 xprt_register F
GLIBC_2.4 xprt_unregister F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
index 628612b885..279aa2b8eb 100644
--- a/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
+++ b/sysdeps/unix/sysv/linux/bits/fcntl-linux.h
@@ -451,6 +451,28 @@ extern int name_to_handle_at (int __dfd, const char *__name,
extern int open_by_handle_at (int __mountdirfd, struct file_handle *__handle,
int __flags);
+#ifdef __has_include
+# if __has_include ("linux/openat2.h")
+# include "linux/openat2.h"
+# define __glibc_has_open_how 1
+# endif
+#endif
+
+#include <bits/openat2.h>
+
+/* Similar to `openat' but the arguments are packed on HOW with the size
+ USIZE. If flags and mode from HOW are non-zero, then openat2 operates
+ like openat.
+
+ Unlike openat2, unknown or invalid flags result in an error (EINVAL),
+ rather than being ignored. The mode must be zero unless one O_CREAT
+ or O_TMPFILE are set.
+
+ The kernel does not support legacy non-LFS interface. */
+extern int openat2 (int __dfd, const char *__filename, struct open_how *__how,
+ size_t __usize)
+ __nonnull ((2, 3));
+
#endif /* use GNU */
__END_DECLS
diff --git a/sysdeps/unix/sysv/linux/bits/openat2.h b/sysdeps/unix/sysv/linux/bits/openat2.h
new file mode 100644
index 0000000000..a07984dace
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/bits/openat2.h
@@ -0,0 +1,61 @@
+/* openat2 definition. Linux specific.
+ Copyright (C) 2024 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 _FCNTL_H
+# error "Never use <bits/openat2.h> directly; include <fcntl.h> instead."
+#endif
+
+#ifndef __glibc_has_open_how
+/* Arguments for how openat2 should open the target path. */
+struct open_how
+{
+ __uint64_t flags;
+ __uint64_t mode;
+ __uint64_t resolve;
+};
+#endif
+
+/* how->resolve flags for openat2. */
+#ifndef RESOLVE_NO_XDEV
+# define RESOLVE_NO_XDEV 0x01 /* Block mount-point crossings
+ (includes bind-mounts). */
+#endif
+#ifndef RESOLVE_NO_MAGICLINKS
+# define RESOLVE_NO_MAGICLINKS 0x02 /* Block traversal through procfs-style
+ "magic-links". */
+#endif
+#ifndef RESOLVE_NO_SYMLINKS
+# define RESOLVE_NO_SYMLINKS 0x04 /* Block traversal through all symlinks
+ (implies OEXT_NO_MAGICLINKS). */
+#endif
+#ifndef RESOLVE_BENEATH
+# define RESOLVE_BENEATH 0x08 /* Block "lexical" trickery like
+ "..", symlinks, and absolute
+ paths which escape the dirfd. */
+#endif
+#ifndef RESOLVE_IN_ROOT
+# define RESOLVE_IN_ROOT 0x10 /* Make all jumps to "/" and ".."
+ be scoped inside the dirfd
+ (similar to chroot). */
+#endif
+#ifndef RESOLVE_CACHED
+# define RESOLVE_CACHED 0x20 /* Only complete if resolution can be
+ completed through cached lookup. May
+ return -EAGAIN if that's not
+ possible. */
+#endif
diff --git a/sysdeps/unix/sysv/linux/csky/libc.abilist b/sysdeps/unix/sysv/linux/csky/libc.abilist
index 96d45961e2..c81ea43dc1 100644
--- a/sysdeps/unix/sysv/linux/csky/libc.abilist
+++ b/sysdeps/unix/sysv/linux/csky/libc.abilist
@@ -2785,3 +2785,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/hppa/libc.abilist b/sysdeps/unix/sysv/linux/hppa/libc.abilist
index fbcd60c2b3..23eec25d8a 100644
--- a/sysdeps/unix/sysv/linux/hppa/libc.abilist
+++ b/sysdeps/unix/sysv/linux/hppa/libc.abilist
@@ -2821,6 +2821,7 @@ GLIBC_2.4 sys_errlist D 0x400
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/i386/libc.abilist b/sysdeps/unix/sysv/linux/i386/libc.abilist
index c989b433c0..4ce2afb147 100644
--- a/sysdeps/unix/sysv/linux/i386/libc.abilist
+++ b/sysdeps/unix/sysv/linux/i386/libc.abilist
@@ -3005,6 +3005,7 @@ GLIBC_2.4 sys_errlist D 0x210
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist b/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
index 0023ec1fa1..be76251b28 100644
--- a/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/loongarch/lp64/libc.abilist
@@ -2269,3 +2269,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
index d9bd6a9b56..5ff3db5035 100644
--- a/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/coldfire/libc.abilist
@@ -2781,6 +2781,7 @@ GLIBC_2.4 xdrstdio_create F
GLIBC_2.4 xencrypt F
GLIBC_2.4 xprt_register F
GLIBC_2.4 xprt_unregister F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
index 439796d693..39645248af 100644
--- a/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
+++ b/sysdeps/unix/sysv/linux/m68k/m680x0/libc.abilist
@@ -2948,6 +2948,7 @@ GLIBC_2.4 sys_errlist D 0x210
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
index 1069d3252c..2f917724de 100644
--- a/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/be/libc.abilist
@@ -2834,3 +2834,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
index 17abe08c8b..6cc64f97b5 100644
--- a/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/microblaze/le/libc.abilist
@@ -2831,3 +2831,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
index 799e508950..ae5b95bc76 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/fpu/libc.abilist
@@ -2909,6 +2909,7 @@ GLIBC_2.4 renameat F
GLIBC_2.4 symlinkat F
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
index 1c10996cbc..434e997937 100644
--- a/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips32/nofpu/libc.abilist
@@ -2907,6 +2907,7 @@ GLIBC_2.4 renameat F
GLIBC_2.4 symlinkat F
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
index 03d9655f26..5dc2996fcc 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n32/libc.abilist
@@ -2915,6 +2915,7 @@ GLIBC_2.4 renameat F
GLIBC_2.4 symlinkat F
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
index 05e402ed30..865dc5e7f1 100644
--- a/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/mips/mips64/n64/libc.abilist
@@ -2817,6 +2817,7 @@ GLIBC_2.4 renameat F
GLIBC_2.4 symlinkat F
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/nios2/libc.abilist b/sysdeps/unix/sysv/linux/nios2/libc.abilist
index 3aa81766aa..12775fdad5 100644
--- a/sysdeps/unix/sysv/linux/nios2/libc.abilist
+++ b/sysdeps/unix/sysv/linux/nios2/libc.abilist
@@ -2873,3 +2873,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/openat2.c b/sysdeps/unix/sysv/linux/openat2.c
new file mode 100644
index 0000000000..a2b134bab0
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/openat2.c
@@ -0,0 +1,29 @@
+/* Linux openat2 syscall implementation.
+ Copyright (C) 2024 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 <fcntl.h>
+#include <bits/openat2.h>
+#include <sysdep-cancel.h>
+
+int
+__openat2 (int dfd, const char *filename, struct open_how *how,
+ size_t usize)
+{
+ return SYSCALL_CANCEL (openat2, dfd, filename, how, usize);
+}
+weak_alias (__openat2, openat2)
diff --git a/sysdeps/unix/sysv/linux/or1k/libc.abilist b/sysdeps/unix/sysv/linux/or1k/libc.abilist
index c40c843aaf..2835436011 100644
--- a/sysdeps/unix/sysv/linux/or1k/libc.abilist
+++ b/sysdeps/unix/sysv/linux/or1k/libc.abilist
@@ -2255,3 +2255,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
index 9714305608..3b70a56944 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libc.abilist
@@ -3138,6 +3138,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
index 0beb52c542..677c9a75de 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libc.abilist
@@ -3183,6 +3183,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
index cfc2ebd3ec..10fc3c89dc 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libc.abilist
@@ -2892,6 +2892,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
index 8c9efc5a16..713fa1d1c8 100644
--- a/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libc.abilist
@@ -2968,3 +2968,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
index 6397a9cb91..550ba877ef 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv32/libc.abilist
@@ -2512,3 +2512,4 @@ GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
GLIBC_2.40 __riscv_hwprobe F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
index 71bbf94f66..8bf9f309b7 100644
--- a/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/riscv/rv64/libc.abilist
@@ -2712,3 +2712,4 @@ GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
GLIBC_2.40 __riscv_hwprobe F
+GLIBC_2.40 openat2 F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
index a7467e2850..08bc3d6f8b 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-32/libc.abilist
@@ -3136,6 +3136,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
index fd1cb2972d..e25afff581 100644
--- a/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/s390/s390-64/libc.abilist
@@ -2929,6 +2929,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/sh/be/libc.abilist b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
index ff6e6b1a13..499de50ee0 100644
--- a/sysdeps/unix/sysv/linux/sh/be/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/be/libc.abilist
@@ -2828,6 +2828,7 @@ GLIBC_2.4 sys_errlist D 0x210
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/sh/le/libc.abilist b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
index 449d92bbc5..bdd9c600f0 100644
--- a/sysdeps/unix/sysv/linux/sh/le/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sh/le/libc.abilist
@@ -2825,6 +2825,7 @@ GLIBC_2.4 sys_errlist D 0x210
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
index e615be759a..b20dd43d47 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc32/libc.abilist
@@ -3157,6 +3157,7 @@ GLIBC_2.4 wcstold F
GLIBC_2.4 wcstold_l F
GLIBC_2.4 wprintf F
GLIBC_2.4 wscanf F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
index bd36431dd7..19981aa981 100644
--- a/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/sparc/sparc64/libc.abilist
@@ -2793,6 +2793,7 @@ GLIBC_2.4 sys_errlist D 0x430
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/tst-openat2-consts.py b/sysdeps/unix/sysv/linux/tst-openat2-consts.py
new file mode 100755
index 0000000000..1623fafd94
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-openat2-consts.py
@@ -0,0 +1,63 @@
+#!/usr/bin/python3
+# Test that glibc's sys/openat2.h constants match the kernel's.
+# Copyright (C) 2024 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/>.
+
+import argparse
+import sys
+
+import glibcextract
+import glibcsyscalls
+
+
+def main():
+ """The main entry point."""
+ parser = argparse.ArgumentParser(
+ description="Test that glibc's sys/openat2.h constants "
+ "match the kernel's.")
+ parser.add_argument('--cc', metavar='CC',
+ help='C compiler (including options) to use')
+ args = parser.parse_args()
+
+ if glibcextract.compile_c_snippet(
+ '#include <linux/openat2.h>',
+ args.cc).returncode != 0:
+ sys.exit (77)
+
+ linux_version_headers = glibcsyscalls.linux_kernel_version(args.cc)
+ # Constants in glibc were updated to match Linux v6.8. When glibc
+ # constants are updated this value should be updated to match the
+ # released kernel version from which the constants were taken.
+ linux_version_glibc = (6, 8)
+ def check(cte, exclude=None):
+ return glibcextract.compare_macro_consts(
+ '#define _FCNTL_H\n'
+ '#include <stdint.h>\n'
+ '#include <bits/openat2.h>\n',
+ '#include <asm/fcntl.h>\n'
+ '#include <linux/openat2.h>\n',
+ args.cc,
+ cte,
+ exclude,
+ linux_version_glibc > linux_version_headers,
+ linux_version_headers > linux_version_glibc)
+
+ status = check('RESOLVE.*')
+ sys.exit(status)
+
+if __name__ == '__main__':
+ main()
diff --git a/sysdeps/unix/sysv/linux/tst-openat2.c b/sysdeps/unix/sysv/linux/tst-openat2.c
new file mode 100644
index 0000000000..d0c26f2bce
--- /dev/null
+++ b/sysdeps/unix/sysv/linux/tst-openat2.c
@@ -0,0 +1,259 @@
+/* Linux openat2 tests.
+ Copyright (C) 2024 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/>. */
+
+/* openat2 always return a file descriptor in LFS mode. */
+#define _FILE_OFFSET_BITS 64
+
+#include <array_length.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <stdint.h>
+#include <support/check.h>
+#include <support/temp_file.h>
+#include <support/xunistd.h>
+
+static int dir_fd;
+
+static void
+do_prepare (int argc, char *argv[])
+{
+ char *temp_dir = support_create_temp_directory ("tst-openat2");
+ dir_fd = xopen (temp_dir, O_RDONLY | O_DIRECTORY, 0);
+}
+#define PREPARE do_prepare
+
+static int
+do_test_struct (void)
+{
+ static struct struct_test
+ {
+ struct open_how_ext
+ {
+ struct open_how inner;
+ int extra1;
+ int extra2;
+ int extra3;
+ } arg;
+ size_t size;
+ int err;
+ } tests[] =
+ {
+ {
+ /* Zero size. */
+ .arg.inner.flags = O_RDONLY,
+ .size = 0,
+ .err = EINVAL,
+ },
+ {
+ /* Normal struct. */
+ .arg.inner.flags = O_RDONLY,
+ .size = sizeof (struct open_how),
+ },
+ {
+ /* Larger struct, zeroed out the unused values. */
+ .arg.inner.flags = O_RDONLY,
+ .size = sizeof (struct open_how_ext),
+ },
+ {
+ /* Larger struct, non-zeroed out the unused values. */
+ .arg.inner.flags = O_RDONLY,
+ .arg.extra1 = 0xdeadbeef,
+ .size = sizeof (struct open_how_ext),
+ .err = E2BIG,
+ },
+ {
+ /* Larger struct, non-zeroed out the unused values. */
+ .arg.inner.flags = O_RDONLY,
+ .arg.extra2 = 0xdeadbeef,
+ .size = sizeof (struct open_how_ext),
+ .err = E2BIG,
+ },
+ };
+
+ for (struct struct_test *t = tests; t != array_end (tests); t++)
+ {
+ int fd = openat2 (AT_FDCWD, ".", (struct open_how *) &t->arg, t->size);
+ if (fd == -1 && errno == ENOSYS)
+ FAIL_UNSUPPORTED ("openat2 is not supported by the kernel");
+
+ if (t->err != 0)
+ {
+ TEST_COMPARE (fd, -1);
+ TEST_COMPARE (errno, t->err);
+ }
+ else
+ TEST_VERIFY (fd >= 0);
+ }
+
+ return 0;
+}
+
+static int
+do_test_flags (void)
+{
+ static struct flag_test
+ {
+ struct open_how how;
+ int err;
+ } tests[] =
+ {
+ /* O_TMPFILE is incompatible with O_PATH and O_CREAT. */
+ { .how.flags = O_TMPFILE | O_PATH | O_RDWR, .err = EINVAL },
+ { .how.flags = O_TMPFILE | O_CREAT | O_RDWR, .err = EINVAL },
+
+ /* O_PATH only permits certain other flags to be set ... */
+ { .how.flags = O_PATH | O_CLOEXEC },
+ { .how.flags = O_PATH | O_DIRECTORY },
+ { .how.flags = O_PATH | O_NOFOLLOW },
+ /* ... and others are absolutely not permitted. */
+ { .how.flags = O_PATH | O_RDWR, .err = EINVAL },
+ { .how.flags = O_PATH | O_CREAT, .err = EINVAL },
+ { .how.flags = O_PATH | O_EXCL, .err = EINVAL },
+ { .how.flags = O_PATH | O_NOCTTY, .err = EINVAL },
+ { .how.flags = O_PATH | O_DIRECT, .err = EINVAL },
+
+ /* ->mode must only be set with O_{CREAT,TMPFILE}. */
+ { .how.flags = O_RDONLY, .how.mode = 0600, .err = EINVAL },
+ { .how.flags = O_PATH, .how.mode = 0600, .err = EINVAL },
+ { .how.flags = O_CREAT, .how.mode = 0600 },
+ { .how.flags = O_TMPFILE | O_RDWR, .how.mode = 0600 },
+ /* ->mode must only contain 0777 bits. */
+ { .how.flags = O_CREAT, .how.mode = 0xFFFF, .err = EINVAL },
+ { .how.flags = O_CREAT, .how.mode = 0xC000000000000000ULL, .err = EINVAL },
+ { .how.flags = O_TMPFILE | O_RDWR, .how.mode = 0x1337, .err = EINVAL },
+ { .how.flags = O_TMPFILE | O_RDWR, .how.mode = 0x0000A00000000000ULL,
+ .err = EINVAL },
+
+ /* ->resolve flags must not conflict. */
+ { .how.flags = O_RDONLY,
+ .how.resolve = RESOLVE_BENEATH | RESOLVE_IN_ROOT,
+ .err = EINVAL },
+
+ /* ->resolve must only contain RESOLVE_* flags. */
+ { .how.flags = O_RDONLY,
+ .how.resolve = 0x1337, .err = EINVAL },
+ { .how.flags = O_CREAT,
+ .how.resolve = 0x1337, .err = EINVAL },
+ { .how.flags = O_TMPFILE | O_RDWR,
+ .how.resolve = 0x1337, .err = EINVAL },
+ { .how.flags = O_PATH,
+ .how.resolve = 0x1337, .err = EINVAL },
+
+ /* currently unknown upper 32 bit rejected. */
+ { .how.flags = O_RDONLY | (1ULL << 63),
+ .how.resolve = 0, .err = EINVAL },
+ };
+
+ for (struct flag_test *t = tests; t != array_end (tests); t++)
+ {
+ char *path;
+ if (t->how.flags & O_CREAT)
+ {
+ int temp_fd = create_temp_file ("tst-openat2.", &path);
+ TEST_VERIFY_EXIT (temp_fd != -1);
+ xunlink (path);
+ }
+ else
+ path = (char *) ".";
+
+ int fd = openat2 (AT_FDCWD, path, &t->how, sizeof (struct open_how));
+ if (fd != 0 && errno == EOPNOTSUPP)
+ {
+ /* Skip the testcase if FS does not support the operation (e.g.
+ valid O_TMPFILE on NFS). */
+ continue;
+ }
+
+ if (t->err != 0)
+ {
+ TEST_COMPARE (fd, -1);
+ TEST_COMPARE (errno, t->err);
+ }
+ else
+ TEST_VERIFY (fd >= 0);
+ }
+
+ return 0;
+}
+
+static int
+do_test_basic (void)
+{
+ int fd;
+
+ fd = openat2 (dir_fd,
+ "some-file",
+ &(struct open_how)
+ {
+ .flags = O_CREAT|O_RDWR|O_EXCL,
+ .mode = 0666,
+ },
+ sizeof (struct open_how));
+ TEST_VERIFY (fd != -1);
+
+ xwrite (fd, "hello", 5);
+
+ /* Before closing the file, try using this file descriptor to open
+ another file. This must fail. */
+ {
+ int fd2 = openat2 (fd,
+ "should-not-work",
+ &(struct open_how)
+ {
+ .flags = O_CREAT|O_RDWR|O_EXCL,
+ .mode = 0666,
+ },
+ sizeof (struct open_how));
+ TEST_COMPARE (fd2, -1);
+ TEST_COMPARE (errno, ENOTDIR);
+ }
+
+ /* Remove the created file. */
+ int cwdfd = xopen (".", O_RDONLY | O_DIRECTORY, 0);
+ TEST_COMPARE (fchdir (dir_fd), 0);
+ xunlink ("some-file");
+ TEST_COMPARE (fchdir (cwdfd), 0);
+
+ xclose (dir_fd);
+ xclose (cwdfd);
+
+ fd = openat2 (dir_fd,
+ "some-file",
+ &(struct open_how)
+ {
+ .flags = O_CREAT|O_RDWR|O_EXCL,
+ .mode = 0666,
+ },
+ sizeof (struct open_how));
+ TEST_COMPARE (fd, -1);
+ TEST_COMPARE (errno, EBADF);
+
+ return 0;
+}
+
+static int
+do_test (void)
+{
+ do_test_struct ();
+ do_test_flags ();
+ do_test_basic ();
+
+ return 0;
+}
+
+#include <support/test-driver.c>
diff --git a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
index aea7848ed6..a7f177c8a8 100644
--- a/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/64/libc.abilist
@@ -2744,6 +2744,7 @@ GLIBC_2.4 sys_errlist D 0x420
GLIBC_2.4 sys_nerr D 0x4
GLIBC_2.4 unlinkat F
GLIBC_2.4 unshare F
+GLIBC_2.40 openat2 F
GLIBC_2.5 __readlinkat_chk F
GLIBC_2.5 inet6_opt_append F
GLIBC_2.5 inet6_opt_find F
diff --git a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
index 4ab3681914..00dfc8f1e7 100644
--- a/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
+++ b/sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist
@@ -2763,3 +2763,4 @@ GLIBC_2.39 stdc_trailing_zeros_ui F
GLIBC_2.39 stdc_trailing_zeros_ul F
GLIBC_2.39 stdc_trailing_zeros_ull F
GLIBC_2.39 stdc_trailing_zeros_us F
+GLIBC_2.40 openat2 F
--
2.34.1
next reply other threads:[~2024-04-24 17:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-24 17:38 Adhemerval Zanella [this message]
2024-04-24 17:42 ` [PATCH] linux: Add openat2 (BZ 31664) enh
2024-04-24 18:05 ` Adhemerval Zanella Netto
2024-04-24 21:18 ` enh
2024-04-25 14:00 ` Adhemerval Zanella Netto
2024-04-25 14:10 ` enh
2024-04-25 16:10 ` Adhemerval Zanella Netto
2024-04-29 13:38 ` Florian Weimer
2024-05-01 14:14 ` Adhemerval Zanella Netto
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