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libpthread/nptl: create timer thread with sufficiant stack size (account for TLS)

Create timer thread with sufficiant stack size (take into account
allocated space for thread-local-storage), for this backport glibc
commit 'Create internal threads with sufficient stack size' ([1],
[2]) introducing __pthread_get_minstack() and use it in
__start_helper_thread().

Fixes timer_create() in case of linking with library using large
TLS area (e.g openblas, see [3]).

[1] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=2c1094bd700e63a8d7f547b3f5495bedb55c0a08
[2] https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=630f4cc3aa019ede55976ea561f1a7af2f068639
[3] http://lists.busybox.net/pipermail/buildroot/2021-April/308281.html

Signed-off-by: Peter Seiderer <ps.report@gmx.net>

open: Add support for O_TMPFILE

Since Linux 3.11, O_TMPFILE allows to create unnamed files that can be
linked later on. It is internally defined as (O_TMPFILE | O_DIRECTORY)
to make it fail on old kernels.

Copying definitions from glibc for O_TMPFILE is not enough to support
O_TMPFILE; The open() wrapper also need to pass the mode when the flag
contains O_TMPFILE, otherwise, it will pass mode 000 which will succeed
but yield unexpected results.

openat() is curiously not affected since it passes the mode
unconditionally..

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>

bump version for 1.0.38 release

fcntl.h: Make F_DUPFD_CLOEXEC if _USE_XOPEN2K8

The F_DUPFD_CLOEXEC flag was added in POSIX 2008.09.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>

string.h: Make strdup() available if _USE_XOPEN2K8

The strdup() function is present in POSIX 2008.09.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>

riscv64: sync ldso relocations with or1k, fixes 5 testsuite errors

use renameat2 syscall, when renameat isn't available

fix umount2 compilation for alpha on Linux 5.x

sh: Add 64-bit time types from kernel

Building uclibc 1.0.37 for SuperH architecture with linux-headers 5.10.7
fails at libpthread level due to missing time-related data structures,
usually defined by the kernel.

Define those missing data structures in SuperH-specific kernel_types.h.

Context: building for sh4eb-r2d[1] and sh4-r2d[1] boards emulations for
QEMU using the buildroot image generation tool.

Regarding the issue, a patch[3] was already issued in the kernel some
time ago, which aimed to solve precisely this problem. After coming up
with a quick and dirty patch for buildroot modifying Linux headers[4],
some discussion was sparked on the subject with Linux folks[5]. Some
analyzing later, conclusion was that:
1) Previously mentioned patch[4] was fixing the symptom, not the ill
2) SuperH-specific code in uclibc could be patched instead, to solve
the problem for other use cases (e.g. building just a toolchain)

[1] https://git.buildroot.net/buildroot/tree/configs/qemu_sh4eb_r2d_defconfig?h=2020.02.9
[2] https://git.buildroot.net/buildroot/tree/configs/qemu_sh4_r2d_defconfig?h=2020.02.9
[3] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=fc94cf2092c7c1267fa2deb8388d624f50eba808
[4] https://git.buildroot.net/buildroot/commit/?id=742f37de8d0e3797698411dfc6a63bd7e98aafe2
[5] https://patchwork.kernel.org/project/linux-sh/patch/20210123165652.10884-1-geoffrey.legourrierec@gmail.com/

Signed-off-by: Geoffrey Le Gourriérec <geoffrey.legourrierec@gmail.com>

extra/locale: fix gen_wc8bit diagnostic output

Diagnostic for missing UTF locale is printed to stdout instead of
stderr, fix that.

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

bump to 1.0.37

GNU hash style support disable for MIPS

stdlib: fix potential UB and integer overflow with huge allocations using malloc-simple allocator

Two things are fixed by this commit:

1/ It is wrong to allocate an object of size > PTRDIFF_MAX.
It is explained in this thread: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63303

2/ There was a possible integer overflow in both malloc() and memalign() implementations
of stdlib/malloc-simple.
The malloc() integer overflow issue is fixed by the side effect of fixing the PTRDIFF_MAX issue.
The memalign() one is fixed by adding a comparison.

Signed-off-by: Yann Sionneau <yann@sionneau.net>

libcrypt: add missing errno.h header

Fixes:
libcrypt/crypt.c:29:15: error: 'EINVAL' undeclared (first use in this function)
__set_errno(EINVAL);
^~~~~~

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

libcrypt: set_errno to something valid

hasmntopt: better option matching

Previous implementation was respecting the man page description
of what the function should do.
Also the function does not seem to be defined by POSIX.

But... to be really useful the function needs to handle
option matching and not just substring matching.

This is copy pasted from glibc.

This fixes issue reported by https://github.com/wbx-github/uclibc-ng/issues/8
that can happen for instance there: https://github.com/frida/glib/blob/master/gio/gunixmounts.c#L622

Signed-off-by: Yann Sionneau <yann@sionneau.net>

bump version to 1.0.36

kvx: add support for kvx arch to uClibc-ng

This commit adds support for Kalray VLIW family (kvx)

Kalray kv3 core is embedded in Kalray Coolidge SoC. This core which is the
third of the KV family has the following features:

32/64 bits execution mode
6-issue VLIW architecture
64 x 64bits general purpose registers
SIMD instructions
little-endian

In order to build a usable toolchain, build scripts are provided at the
following address: https://github.com/kalray/build-scripts.

Kalray uses FOSS which is available at https://github.com/kalray
This includes Linux kernel, uClibc-ng, gcc, binutils, etc.

Signed-off-by: Clément Léger <cleger@kalray.eu>
Signed-off-by: Guillaume Thouvenin <gthouvenin@kalray.eu>
Signed-off-by: Laurent Thevenoux <lthevenoux@kalray.eu>
Signed-off-by: Marc Poulhies <mpoulhies@kalray.eu>
Signed-off-by: Marius Gligor <mgligor@kalray.eu>
Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix warning due to unused label in NPTL

Fixes this:

In file included from libpthread/nptl/pthread_create.c:48:0:
libpthread/nptl/allocatestack.c: In function 'allocate_stack':
libpthread/nptl/allocatestack.c:602:6: warning: label 'mprot_error' defined but not used [-Wunused-label]
mprot_error:
^~~~~~~~~~~

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix warning due to relaxed function declaration prototype

Fixes this:

libintl/libintl.c:81:13: warning: function declaration isn't a prototype [-Wstrict-prototypes]
const char *_nl_expand_alias () { return NULL; }
^~~~~~~~~~~~~~~~

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix warning due to unused variable in strlen

Fixes this:

libc/string/generic/strlen.c: In function 'strlen':
libc/string/generic/strlen.c:31:31: warning: variable 'magic_bits' set but not used [-Wunused-but-set-variable]
unsigned long int longword, magic_bits, himagic, lomagic;
^~~~~~~~~~

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix warning about macro redefinition

Fixes this:

libc/misc/internals/tempname.c: In function 'brain_damaged_fillrand':
libc/misc/internals/tempname.c:155:0: warning: "L" redefined
#define L ((UINT32_MAX % NUM_LETTERS + 1) % NUM_LETTERS)

In file included from ./libpthread/nptl/sysdeps/unix/sysv/linux/lowlevellock.h:24:0,
from ./include/bits/libc-lock.h:35,
from ./include/bits/stdio-lock.h:22,
from ./include/bits/uClibc_mutex.h:73,
from ./include/bits/uClibc_stdio.h:83,
from ./include/stdio.h:71,
from libc/misc/internals/tempname.c:35:
./libc/sysdeps/linux/kvx/sysdep.h:40:0: note: this is the location of the previous definition
# define L(name) $L##name

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix warning about missing const qualifier

Fixes this:

In file included from libc/misc/fnmatch/fnmatch.c:235:0:
libc/misc/fnmatch/fnmatch_loop.c: In function 'internal_fnmatch':
libc/misc/fnmatch/fnmatch_loop.c:207:21: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
CHAR *p_init = p;
^
libc/misc/fnmatch/fnmatch_loop.c:208:21: warning: initialization discards 'const' qualifier from pointer target type [-Wdiscarded-qualifiers]
CHAR *n_init = n;

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Fix unused variable warning in dl-startup.c

SEND_STDERR_DEBUG does nothing if __SUPPORT_LD_DEBUG_EARLY__ is not defined
thus causing a warning.

Fixes this:

In file included from ldso/ldso/ldso.c:86:0:
ldso/ldso/dl-startup.c: In function '_dl_start':
ldso/ldso/dl-startup.c:313:13: warning: variable 'strtab' set but not used [-Wunused-but-set-variable]
char *strtab;
^~~~~~

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

Support b64_ntop(), b64_pton() (bsd-compat)

Signed-off-by: akater <nuclearspace@gmail.com>

Fix memory corruption due to struct stat field

Kernel stat/stat64 structure and uClibc-ng ones were not
in sync regarding the timespec fields.
Kernel had them but uClibc did not expose it in some cases.

Man page says that stat struct should have timespec fields if:
* _POSIX_C_SOURCE is defined to 200809L or greater
or
* _XOPEN_SOURCE is defined to 700 or greater
or
* _BSD_SOURCE is defined
or
* _SVID_SOURCE is defined

In the case of buildroot vim build, neither _BSD_SOURCE nor _SVID_SOURCE were defined.
Only _POSIX_C_SOURCE and _XOPEN_SOURCE were defined.

uClibc-ng header only checked for _BSD_SOURCE and _SVID_SOURCE via __USE_MISC.

This patch adds a check to __USE_XOPEN2K8 which is defined
if _POSIX_C_SOURCE >= 200809L or _XOPEN_SOURCE >= 700

This for instance fixes a crash at startup of vim (not the busybox one) on aarch64 and all other
arch where in kernel STAT_HAVE_NSEC is set and where stat.h in uClibc-ng comes from libc/sysdeps/linux/common-generic/bits

Signed-off-by: Yann Sionneau <ysionneau@kalray.eu>

librt: avoid compilation error

For NOMMU builds, LIBC_CANCEL_ASYNC and LIBC_CANCEL_RESET are not
defined. Prevent these macros from being visible by the compiler in
clock_nanosleep() by replacing "if (SINGLE_THREAD_P) {" with the
pre-compiler directive "#if defined(SINGLE_THREAD_P)".

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>

utils/getconf: Fix compilation error

In the main() function, all cases of the "switch (specs[i].num)"
switch-case are all conditionally defined. Depending on the target
environementi, none of them may endup being defined, resulting in the
code block before the no-op default case to generate a
"warning: statement will never be executed" compilation error.

Avoid this by conditionally defining this code block with the macro
DO_GETCONF_NAME which is itself defined if any of the switc cases is
defined too.

Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>

add MAX_HANDLE_SZ

fix static builds with gcc 10.x