| Age | Commit message (Collapse) | Author |
|---|
|
This patch makes the quicksort implementation to acts as introsort, to
avoid worse-case performance (and thus making it O(nlog n)). It switch
to heapsort when the depth level reaches 2*log2(total elements). The
heapsort is a textbook implementation.
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
The optimization takes in consideration both the most common elements
are either 32 or 64 bit in size and inputs are aligned to the word
boundary. This is similar to what msort does.
For large buffer the swap operation uses memcpy/mempcpy with a
small fixed size buffer (so compiler might inline the operations).
Checked on x86_64-linux-gnu.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
The prototype is:
void __memswap (void *restrict p1, void *restrict p2, size_t n)
The function swaps the content of two memory blocks P1 and P2 of
len N. Memory overlap is NOT handled.
It will be used on qsort optimization.
Checked on x86_64-linux-gnu and aarch64-linux-gnu.
Reviewed-by: Noah Goldstein <goldstein.w.n@gmail.com>
|
|
|
|
This patch makes build-many-glibcs.py use Linux 6.6.
Tested with build-many-glibcs.py (host-libraries, compilers and glibcs
builds).
|
|
All the crypt related functions, cryptographic algorithms, and
make requirements are removed, with only the exception of md5
implementation which is moved to locale folder since it is
required by localedef for integrity protection (libc's
locale-reading code does not check these, but localedef does
generate them).
Besides thec code itself, both internal documentation and the
manual is also adjusted. This allows to remove both --enable-crypt
and --enable-nss-crypt configure options.
Checked with a build for all affected ABIs.
Co-authored-by: Zack Weinberg <zack@owlfolio.org>
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
|
|
The libcrypt was maked to be phase out on 2.38, and a better project
already exist that provide both compatibility and better API
(libxcrypt). The sparc optimizations add the burden to extra
build-many-glibcs.py configurations.
Checked on sparc64 and sparcv9.
Reviewed-by: Carlos O'Donell <carlos@redhat.com>
|
|
From commit d846c2838942297c9644f2f38bdad0fb88f42245.
|
|
|
|
|
|
|
|
Add support for MOPS in cpu_features and INIT_ARCH. Add ifuncs using MOPS for
memcpy, memmove and memset (use .inst for now so it works with all binutils
versions without needing complex configure and conditional compilation).
Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>
|
|
getnameinfo is an entry points for nss functionality. This commit moves
it from the 'inet' subdirectory to 'nss'. The corresponding Versions
entry is also moved from 'posix' into 'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
getaddrinfo is an entry point for nss functionality. This commit moves
it from 'sysdeps/posix' to 'nss', gets rid of the stub in 'posix', and
moves all associated tests as well.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The getservby* and getservent* routines are entry points for nss
functionality. This commit moves them from the 'inet' subdirectory to
'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The getrpcby* and getrpcent* routines are entry points for nss
functionality. This commit moves them from the 'inet' subdirectory to
'nss'. The Versions entries for these routines along with a test,
located in the 'sunrpc' subdirectory, are also moved into 'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The getprotoby* and getprotoent* routines are entry points for nss
functionality. This commit moves them from the 'inet' subdirectory to
'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The getnetby* and getnetent* routines are entry points for nss
functionality. This commit moves them from the 'inet' subdirectory to
'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
These netgroup routines are entry points for nss functionality.
This commit moves them along with netgroup.h from the 'inet'
subdirectory to 'nss', and adjusts any references accordingly.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The gethostby* and gethostent* routines are entry points for nss
functionality. This commit moves them from the 'inet' subdirectory to
'nss'.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
ether_hostton and ether_ntohost are entry points for nss functionality.
This commit moves them from the 'inet' subdirectory to 'nss', and
adjusts any references accordingly.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The aliases routines are entry points for nss functionality. This
commit moves aliases.h and the aliases routines from the 'inet'
subdirectory to 'nss', and adjusts any external references.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The majority of shadow routines are entry points for nss functionality.
This commit removes the 'shadow' subdirectory and moves all
functionality and tests to 'nss'. References to shadow/ are accordingly
changed.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The majority of pwd routines are entry points for nss functionality.
This commit removes the 'pwd' subdirectory and moves all functionality
and tests to 'nss'. References to pwd/ are accordingly changed.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The majority of gshadow routines are entry points for nss functionality.
This commit removes the 'gshadow' subdirectory and moves all
functionality and tests to 'nss'. References to gshadow/ are
accordingly changed.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The majority of grp routines are entry points for nss functionality.
This commit removes the 'grp' subdirectory and moves all nss-relevant
functionality and all tests to 'nss', and the 'setgroups' stub into
'posix' (alongside the 'getgroups' stub). References to grp/ are
accordingly changed. In addition, compat-initgroups.c, a fallback
implementation of initgroups is renamed to initgroups-fallback.c so that
the build system does not confuse it for nss_compat/compat-initgroups.c.
Build time improves very slightly; e.g. down from an average of 45.5s to
44.5s on an 8-thread mobile x86_64 CPU.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
With gcc 13.1 with --enable-fortify-source=2, tst-tcfree3 fails to
build on csky-linux-gnuabiv2 with:
../string/bits/string_fortified.h: In function ‘do_test’:
../string/bits/string_fortified.h:26:8: error: inlining failed in call
to ‘always_inline’ ‘memcpy’: target specific option mismatch
26 | __NTH (memcpy (void *__restrict __dest, const void *__restrict
__src,
| ^~~~~~
../misc/sys/cdefs.h:81:62: note: in definition of macro ‘__NTH’
81 | # define __NTH(fct) __attribute__ ((__nothrow__ __LEAF)) fct
| ^~~
tst-tcfree3.c:45:3: note: called from here
45 | memcpy (c, a, 32);
| ^~~~~~~~~~~~~~~~~
Instead of relying on -O0 to avoid malloc/free to be optimized away,
disable the builtin.
Reviewed-by: DJ Delorie <dj@redhat.com>
|
|
When building the testroot, the script runs the newly built ld.so on a
couple of binaries in order to copy over any additional libraries
needed. However, if the dependencies are found in the system cache, it
will be copied over using that path.
This is problematic if the system ld.so and the one built don't have the
exact same search configuration. We encountered this in Ubuntu, where we
build a variant of libc with -fno-omit-frame-pointer for accurate
performance profiling.
This variant is built using a non-standard slibdir to be able to be
co-installed with the default library (e.g. slibdir = /lib/libc6-prof).
Since we have /lib pointing to /usr/lib, any additional dependency
should still be reachable via /usr. However, resolving via the cache
might result in the additional DSOs being copied into $testroot/lib, out
of the search path in the container.
The problem has been triggered by 1d5024f4f052c12e404d42d3b5bfe9c3e9fd27c4
("support: Build with exceptions and asynchronous unwind tables [BZ #30587]")
which introduced a dependency on libgcc_s.so.1 under some circumstances.
Downstream bug: https://bugs.launchpad.net/ubuntu/+source/glibc/+bug/2031495
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
Double-precision routines either reuse the exp table (AdvSIMD) or use
SVE FEXPA intruction.
|
|
A table is also added, which is shared between AdvSIMD and SVE log10.
|
|
A table is also added, which is shared between AdvSIMD and SVE log2.
|
|
Some routines reuse table from v_exp_data.c
|
|
This includes some utility headers for evaluating polynomials using
various schemes.
|
|
This avoids crashes due to partially written files, after a package
update is interrupted.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
|
The arguments for "expected" and "got" are mismatched. Furthermore
this patch is dumping both values as hex.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
|
|
Linux 6.5 adds constants NT_PPC_DEXCR and NT_PPC_HASHKEYR. Add these
to glibc's elf.h.
Tested for x86_64.
|
|
If feenableexcept or fedisableexcept gets excepts=FE_INVALID=0x80
as input, we have a signed left shift: 0x80 << 24 which is not
representable as int and thus is undefined behaviour according to
C standard.
This patch casts excepts as unsigned int before shifting, which is
defined.
For me, the observed undefined behaviour is that the shift is done
with "unsigned"-instructions, which is exactly what we want.
Furthermore, I don't get any exception-flags.
After the fix, the code is using the same instruction sequence as
before.
|
|
So --help informs the correct shared library search path.
Reviewed-by: Florian Weimer <fweimer@redhat.com>
|
|
This reverts commit 6985865bc3ad5b23147ee73466583dd7fdf65892.
Reason for revert:
The commit changes the order of ELF destructor calls too much relative
to what applications expect or can handle. In particular, during
process exit and _dl_fini, after the revert commit, we no longer call
the destructors of the main program first; that only happens after
some dlopen'ed objects have been destructed. This robs applications
of an opportunity to influence destructor order by calling dlclose
explicitly from the main program's ELF destructors. A couple of
different approaches involving reverse constructor order were tried,
and none of them worked really well. It seems we need to keep the
dependency sorting in _dl_fini.
There is also an ambiguity regarding nested dlopen calls from ELF
constructors: Should those destructors run before or after the object
that called dlopen? Commit 6985865bc3ad5b2314 used reverse order
of the start of ELF constructor calls for destructors, but arguably
using completion of constructors is more correct. However, that alone
is not sufficient to address application compatibility issues (it
does not change _dl_fini ordering at all).
|
|
This reverts commit 964d15a007d7fb1258f2ad7c8cf4afcfb9a65719.
Reason for revert: Conflicts with revert of commit 6985865bc3ad5b23147.
|
|
This patch implements comprehensive tests for strlcat/wcslcat
functions. Tests are mostly derived from strncat test suites
and modified to incorporate strlcat/wcslcat specifications.
Reviewed-by: DJ Delorie <dj@redhat.com>
|
|
This patch implements comprehensive tests for strlcpy/wcslcpy
functions. Tests are mostly derived from strncpy test suites
and modified to incorporate strlcpy/wcslcpy specifications.
Reviewed-by: DJ Delorie <dj@redhat.com>
|
|
Signed-off-by: Bruno Victal <mirai@makinata.eu>
Reviewed-by: Florian Weimer <fweimer@redhat.com>
|
|
Linux 6.5 adds a new AArch64 HWCAP2 value, HWCAP2_MOPS. Add it to
glibc's bits/hwcap.h.
Tested with build-many-glibcs.py for aarch64-linux-gnu.
|
|
Linux 6.5 adds a constant SCM_PIDFD (recall that the non-uapi
linux/socket.h, where this constant is added, is in fact a header
providing many constants that are part of the kernel/userspace
interface). This shows up that SCM_SECURITY, from the same set of
definitions and added in Linux 2.6.17, is also missing from glibc,
although glibc has the first two constants from this set, SCM_RIGHTS
and SCM_CREDENTIALS; add both missing constants to glibc.
Tested for x86_64.
|
|
Linux 6.5 adds a constant AT_HANDLE_FID; add it to glibc. Because
this is a flag for the function name_to_handle_at declared in
bits/fcntl-linux.h, put the flag there rather than alongside other
AT_* flags in (OS-independent) fcntl.h.
Tested for x86_64.
|
|
With GCC 14 on 32-bit x86 the compiler emits a maybe-uninitialized
warning:
../sysdeps/ieee754/dbl-64/k_rem_pio2.c: In function '__kernel_rem_pio2':
../sysdeps/ieee754/dbl-64/k_rem_pio2.c:364:20: error: 'fq' may be used uninitialized [-Werror=maybe-uninitialized]
364 | y[0] = fq[0]; y[1] = fq[1]; y[2] = fw;
| ~~^~~
This is similar to the warning that is suppressed in the other branch of
the switch. Help the compiler knowing that the variable is always
initialized, which also makes the suppression obsolete.
|
|
For container tests, gdb needs to set the sysroot to the corresponding
testroot.root directory. The assumption was that PIDs < 3 means that
we are running within a container.
Starting with commit 2fe64148a81f0d78050c302f34a6853d21f7cae4
"Allow for unpriviledged nested containers", the default is to use
the PID namespace of the parent. Thus support_test_main.c does not
recognize our container anymore.
This patch now assumes that we are running inside a container if
test-container.c has set PID_OUTSIDE_CONTAINER and always uses this
PID independent of having a new PID namespace or not.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
|
