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Using an unsigned type prevents the fallback to be used if kernel
does not support getrandom syscall.
Checked on x86_64-linux-gnu.
Reviewed-by: Wilco Dijkstra <Wilco.Dijkstra@arm.com>
(cherry picked from commit 13db9ee2cb3b77e25f852be7d6952882e1be6f00)
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Fix the subscript on air->family, which was accidentally set to COUNT
when it should have remained as I.
Resolves: BZ #29605
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit c9226c03da0276593a0918eaa9a14835183343e8)
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A new internal definition, __LIBC_LOCK_ALIGNMENT, is used to force
the 4-byte alignment only for m68k, other architecture keep the
natural alignment of the type used internally (and hppa does not
require 16-byte alignment for kernel-assisted CAS).
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit aeb4d2e9815d459e2640a31f5abb8ef803830107)
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It's possible that inode numbers are outside the 32-bit range.
The existing code only handles the in-libc case correctly, and
still uses the legacy interfaces when building iconv.
Suggested-by: Helge Deller <deller@gmx.de>
(cherry picked from commit f97905f24631097af325d6a231093071c3077a5f)
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The implementation in _dl_close_worker requires that the first
element of l_initfini is always this very map (“We are always the
zeroth entry, and since we don't include ourselves in the
dependency analysis start at 1.”). Rather than fixing that
assumption, this commit adds an implementation of the force_first
argument to the new dependency sorting algorithm. This also means
that the directly dlopen'ed shared object is always initialized last,
which is the least surprising behavior in the presence of cycles.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 1df71d32fe5f5905ffd5d100e5e9ca8ad6210891)
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The new implementation will not be able to skip an arbitrary number
of objects.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit dbb75513f5cf9285c77c9e55777c5c35b653f890)
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The main program needs to depend on all shared objects, even objects
that have link-time dependencies among shared objects. Filtering
out shared objects that already have an link-time dependencies is not
necessary here; make will do this automatically.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit 183d99737298bb3200f0610fdcd1c7549c8ed560)
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Commit dad90d528259b669342757c37dedefa8577e2636 added glibc-hwcaps
support for LD_LIBRARY_PATH and, for this, it adjusted the total
string size required in _dl_important_hwcaps. However, in doing so
it inadvertently altered the calculation of the size required for
the power set strings, as the computation of the power set string
size depended on the first value assigned to the total variable,
which is later shifted, resulting in overallocation of string
space. Fix this now by using a different variable to hold the
string size required for glibc-hwcaps.
Signed-off-by: Javier Pello <devel@otheo.eu>
(cherry picked from commit a23820f6052a740246fdc7dcd9c43ce8eed0c45a)
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The test is valid for all TLS models, but we want to make a reasonable
effort to test the GNU2 model specifically. For example, aarch64
defaults to GNU2, but does not have -mtls-dialect=gnu2, and the test
was not run there.
Suggested-by: Martin Coufal <mcoufal@redhat.com>
(cherry picked from commit dd2315a866a4ac2b838ea1cb10c5ea1c35d51a2f)
Fixes early backport commit 924e4f3eaa502ce82fccf8537f021a796d158771
("elf: Call __libc_early_init for reused namespaces (bug 29528)");
it had a wrong conflict resolution.
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This fixes this compiler error:
tst-resolv-invalid-cname.c: In function ‘test_mode_to_string’:
tst-resolv-invalid-cname.c:164:10: error: label at end of compound statement
case test_mode_num:
^~~~~~~~~~~~~
Fixes commit 9caf782276ecea4bc86fc94fbb52779736f3106d
("resolv: Add new tst-resolv-invalid-cname").
(cherry picked from commit d09aa4a17229bcaa2ec7642006b12612498582e7)
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Introduce struct alloc_buffer to this function, and use it and
struct ns_rr_cursor in gaih_getanswer_slice. Adjust gaih_getanswer
and gaih_getanswer_noaaaa accordingly.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 1d495912a746e2a1ffb780c9a81fd234ec2464e8)
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This test checks resolution through CNAME chains that do not contain
host names (bug 12154).
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 9caf782276ecea4bc86fc94fbb52779736f3106d)
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If the name is not a host name, skip adding it to the result, instead
of reporting query failure. This fixes bug 12154 for getaddrinfo.
This commit still keeps the old parsing code, and only adjusts when
a host name is copied.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 32b599ac8c21c4c332cc3900a792a1395bca79c7)
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Allocate the pointer arrays only at the end, when their sizes
are known. This addresses bug 29305.
Skip over invalid names instead of failing lookups. This partially
fixes bug 12154 (for gethostbyname, fixing getaddrinfo requires
different changes).
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit d101d836e7e4bd1d4e4972b0e0bd0a55c9b650fa)
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res_use_inet6 always returns false since commit 3f8b44be0a658266adff5
("resolv: Remove support for RES_USE_INET6 and the inet6 option").
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit a7fc30b522a0cd7c8c5e7e285b9531b704e02f04)
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The simplification takes advantage of the split from getanswer_r.
It fixes various aliases issues, and optimizes NSS buffer usage.
The new DNS packet parsing helpers are used, too.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit e32547d661a43da63368e488b6cfa9c53b4dcf92)
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And expand the use of name_ok and qtype in getanswer_ptr (the
former also in getanswer_r).
After further cleanups, not much code will be shared between the
two functions.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 0dcc43e9981005540bf39dc7bf33fbab62cf9e84)
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The public parser functions around the ns_rr record type produce
textual domain names, but usually, this is not what we need while
parsing DNS packets within glibc. This commit adds two new helper
functions, __ns_rr_cursor_init and __ns_rr_cursor_next, for writing
packet parsers, and struct ns_rr_cursor, struct ns_rr_wire as
supporting types.
In theory, it is possible to avoid copying the owner name
into the rname field in __ns_rr_cursor_next, but this would need
more functions that work on compressed names.
Eventually, __res_context_send could be enhanced to preserve the
result of the packet parsing that is necessary for matching the
incoming UDP packets, so that this works does not have to be done
twice.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 857c890d9b42c50c8a94b76d47d4a61ab6d2f49c)
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This function is useful for checking that the question name is
uncompressed (as it should be).
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 78b1a4f0e49064e5dfb686c7cd87bd4df2640b29)
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During packet parsing, only the binary name is available. If the name
equality check is performed before conversion to text, we can sometimes
skip the last step.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 394085a34d25a51513019a4dc411acd3527fbd33)
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During package parsing, only the binary representation is available,
and it is convenient to check that directly for conformance with host
name requirements.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit c79327bf00a4be6d60259227acc78ef80ead3622)
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Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 87aa98aa80627553a66bdcad2701fd6307723645)
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Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 0b99828d54e5d1fc8f5ad3edf5ba262ad2e9c5b0)
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Processes cache network interface information such as whether IPv4 or IPv6
are enabled. This is only checked again if the "netlink timestamp" provided
by nscd changed, which is triggered by netlink socket activity.
However, in the epoll handler for the netlink socket, it was missed to
assign the new timestamp to the nscd database. The handler for plain poll
did that properly, copy that over.
This bug caused that e.g. processes which started before network
configuration got unusuable addresses from getaddrinfo, like IPv6 only even
though only IPv4 is available:
https://gitlab.freedesktop.org/NetworkManager/NetworkManager/-/issues/1041
It's a bit hard to reproduce, so I verified this by checking the timestamp
on calls to __check_pf manually. Without this patch it's stuck at 1, now
it's increasing on network changes as expected.
Signed-off-by: Fabian Vogt <fvogt@suse.de>
(cherry picked from commit 02ca25fef2785974011e9c5beecc99b900b69fd7)
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(cherry picked from commit 76fe56020e7ef354685b2284580ac1630c078a2b)
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The rfc3164 clear states that a single space character must follow
the timestamp field.
Checked on x86_64-linux-gnu.
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#29539)
The d7703d3176d225d5743b21811d888619eba39e82 changed how vDSO like
dependencies are printed, instead of just the name and address it
follows other libraries mode and prints 'name => path'.
Unfortunately, this broke some ldd consumer that uses the output to
filter out the program's dependencies. For instance CMake
bundleutilities module [1], where GetPrequirite uses the regex to filter
out 'name => path' [2].
This patch restore the previous way to print just the name and the
mapping address.
Checked on x86_64-linux-gnu.
[1] https://github.com/Kitware/CMake/tree/master/Tests/BundleUtilities
[2] https://github.com/Kitware/CMake/blob/master/Modules/GetPrerequisites.cmake#L733
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit 1e903124cec4492463d075c6c061a2a772db77bf)
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Similar to d0fa09a770, but for wchar.h. Fixes [BZ #27087] by applying
all long double related asm redirections before using functions in
bits/wchar2.h.
Moves the function declarations from wcsmbs/bits/wchar2.h to a new file
wcsmbs/bits/wchar2-decl.h that will be included first in wcsmbs/wchar.h.
Tested with build-many-glibcs.py.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
(cherry picked from commit c7509d49c4e8fa494120c5ead21338559dad16f5)
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libc_map is never reset to NULL, neither during dlclose nor on a
dlopen call which reuses the namespace structure. As a result, if a
namespace is reused, its libc is not initialized properly. The most
visible result is a crash in the <ctype.h> functions.
To prevent similar bugs on namespace reuse from surfacing,
unconditionally initialize the chosen namespace to zero using memset.
(cherry picked from commit d0e357ff45a75553dee3b17ed7d303bfa544f6fe)
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The a583b6add407c17cd change did not handle large messages that
would require a heap allocation correctly, where the message itself
is not take in consideration.
This patch fixes it and extend the tst-syslog to check for large
messages as well.
Checked on x86_64-linux-gnu.
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 52a5be0df411ef3ff45c10c7c308cb92993d15b1)
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The #ifdef FSOPEN_CLOEXEC check did not work because the macro
was always defined in this header prior to the check, so that
the <linux/mount.h> contents did not matter.
Fixes commit 774058d72942249f71d74e7f2b639f77184160a6
("linux: Fix sys/mount.h usage with kernel headers").
(cherry picked from commit 2955ef4b7c9b56fcd7abfeddef7ee83c60abff98)
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Now that kernel exports linux/mount.h and includes it on linux/fs.h,
its definitions might clash with glibc exports sys/mount.h. To avoid
the need to rearrange the Linux header to be always after glibc one,
the glibc sys/mount.h is changed to:
1. Undefine the macros also used as enum constants. This covers prior
inclusion of <linux/mount.h> (for instance MS_RDONLY).
2. Include <linux/mount.h> based on the usual __has_include check
(needs to use __has_include ("linux/mount.h") to paper over GCC
bugs.
3. Define enum fsconfig_command only if FSOPEN_CLOEXEC is not defined.
(FSOPEN_CLOEXEC should be a very close proxy.)
4. Define struct mount_attr if MOUNT_ATTR_SIZE_VER0 is not defined.
(Added in the same commit on the Linux side.)
This patch also adds some tests to check if including linux/fs.h and
linux/mount.h after and before sys/mount.h does work.
Checked on x86_64-linux-gnu.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit 774058d72942249f71d74e7f2b639f77184160a6)
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Checked on x86_64-linux-gnu.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit e1226cdc6b209539a92d32d5b620ba53fd35abf3)
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To avoid possible warnings if the kernel header is included before
sys/mount.h.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit c68b6044bc7945716431f1adc091b17c39b80a06)
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Instead of tying to a specific kernel version.
Checked on x86_64-linux-gnu.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit 1542019b69b7ec7b2cd34357af035e406d153631)
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It might be used on tests to check if a snippet build with the provided
compiler and flags.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
(cherry picked from commit 841afa116e32b3c7195475769c26bf46fd870d32)
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The inline and library functions that the CMSG_NXTHDR macro may expand
to increment the pointer to the header before checking the stride of
the increment against available space. Since C only allows incrementing
pointers to one past the end of an array, the increment must be done
after a length check. This commit fixes that and includes a regression
test for CMSG_FIRSTHDR and CMSG_NXTHDR.
The Linux, Hurd, and generic headers are all changed.
Tested on Linux on armv7hl, i686, x86_64, aarch64, ppc64le, and s390x.
[BZ #28846]
Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
(cherry picked from commit 9c443ac4559a47ed99859bd80d14dc4b6dd220a1)
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The kernel special-cases the zero argument for alpha brk, and we can
use that to restore the generic Linux error handling behavior.
Fixes commit b57ab258c1140bc45464b4b9908713e3e0ee35aa ("Linux:
Introduce __brk_call for invoking the brk system call").
(cherry picked from commit e7ad26ee3cb74e61d0637c888f24dd478d77af58)
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Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit f82e05ebb295cadd35f7372f652c72264da810ad)
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GCC normally does this optimization for us in
strlen_pass::handle_builtin_strcpy but only for optimized
build. To avoid needing to include strcpy.S in the rtld build to
support the debug build, just do the optimization by hand.
(cherry picked from commit 483cfe1a6a33d6335b1901581b41040d2d412511)
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Linux 5.19 has no new syscalls, but enables memfd_secret in the uapi
headers for RISC-V. Update the version number in syscall-names.list
to reflect that it is still current for 5.19 and regenerate the
arch-syscall.h headers with build-many-glibcs.py update-syscalls.
Tested with build-many-glibcs.py.
(cherry picked from commit fccadcdf5bed7ee67a6cef4714e0b477d6c8472c)
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Fixes commit 0c1c3a771eceec46e66ce1183cf988e2303bd373 ("dlfcn: Move
dlopen into libc").
(cherry picked from commit ed0185e4129130cbe081c221efb758fb400623ce)
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Make test-c8rtomb.out and test-mbrtoc8.out depend on $(gen-locales) for
xsetlocale (LC_ALL, "de_DE.UTF-8");
xsetlocale (LC_ALL, "zh_HK.BIG5-HKSCS");
Reviewed-by: Sunil K Pandey <skpgkp2@gmail.com>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
(cherry picked from commit e03f5ccd6cc8f829416156eac75acee501626c1f)
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gcc 13 issues the following diagnostic for the uchar.h header when the
-Wc++20-compat option is enabled in C++ modes that do not enable char8_t
as a builtin type (C++17 and earlier by default; subject to _GNU_SOURCE
and the gcc -f[no-]char8_t option).
warning: identifier ‘char8_t’ is a keyword in C++20 [-Wc++20-compat]
This change modifies the uchar.h header to suppress the diagnostic through
the use of '#pragma GCC diagnostic' directives for gcc 10 and later (the
-Wc++20-compat option was added in gcc version 10). Unfortunately, a bug
in gcc currently prevents those directives from having the intended effect
as reported at https://gcc.gnu.org/PR106423. A patch for that issue has
been submitted and is available in the email thread archive linked below.
https://gcc.gnu.org/pipermail/gcc-patches/2022-July/598736.html
(cherry picked from commit 825f84f133bd840347dc49229b6d831f07d04775)
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Update version.h, and include/features.h.
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