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* Add build option to disable usage of scv on powerpcMatheus Castanho2021-06-1010-13/+59
| | | | | | | | | | | | | | | | | Commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef added support for the scv syscall ABI on powerpc. Since then systems that have kernel and processor support started using scv. However adding the proper support for a new syscall ABI requires changes to several other projects (e.g. qemu, valgrind, strace, kernel), which are gradually receiving support. Meanwhile, having a way to disable scv on glibc at build time can be useful for distros that may encounter conflicts with projects that still do not support the scv ABI, buying time until proper support is added. This commit adds a --disable-scv option that disables scv support and uses sc for all syscalls, like before commit 68ab82f56690ada86ac1e0c46bad06ba189a10ef. Reviewed-by: Raphael M Zinsly <rzinsly@linux.ibm.com>
* io: Fix sporadic test failures in io/tst-statFlorian Weimer2021-06-102-5/+6
| | | | | | | | support_stat_nanoseconds cannot restore the ctime time, and this may lead to sporadic test failures. Therefore, probe for nanoseconds support before the initial statx call. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Avoid async cancellation to wrongly update __nptl_nthreads (BZ #19366)Adhemerval Zanella2021-06-091-7/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The testcase provided on BZ#19366 may update __nptl_nthreads in a wrong order, triggering an early process exit because the thread decrement the value twice. The issue is once the thread exits without acting on cancellation, it decreaments '__nptl_nthreads' and then atomically set 'cancelhandling' with EXITING_BIT (thus preventing further cancellation handler to act). The issue happens if a SIGCANCEL is received between checking '__ntpl_nthreads' and setting EXITING_BIT. To avoid it, the '__nptl_nthreads' decrement is moved after EXITING_BIT. It does fully follow the POSIX XSH 2.9.5 Thread Cancellation under the heading Thread Cancellation Cleanup Handlers that states that when a cancellation request is acted upon, or when a thread calls pthread_exit(), the thread first disables cancellation by setting its cancelability state to PTHREAD_CANCEL_DISABLE and its cancelability type to PTHREAD_CANCEL_DEFERRED. The issue is '__pthread_enable_asynccancel' explicit enabled assynchrnous cancellation, so an interrupted syscall within the cancellation cleanup handlers might see an invalid cancelling type (a possible fix might be possible with my proposed solution to BZ#12683). Trying to come up with a test is quite hard since it requires to mimic the timing issue described below, however I see that the bug report reproducer does not early exit anymore. Checked on x86_64-linux-gnu.
* nptl: Use pthread_kill on pthread_cancelAdhemerval Zanella2021-06-093-11/+15
| | | | | | | | | | It consolidates the tgkill call and it is the first step of making pthread_cancel async-signal-safe. It also fix a possible issue where the 'struct pthread' tid is not read atomically, which might send an invalid cancellation signal (similar to what db988e50a87f613cb6b9e98a2fc66a4848bc3546 fixed for pthread_join). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Implement raise in terms of pthread_killAdhemerval Zanella2021-06-098-71/+50
| | | | | | | | | | | | | | | | Now that pthread_kill is provided by libc.so it is possible to implement the generic POSIX implementation as 'pthread_kill(pthread_self(), sig)'. For Linux implementation, pthread_kill read the targeting TID from the TCB. For raise, this it not possible because it would make raise fail when issue after vfork (where creates the resulting process has a different TID from the parent, but its TCB is not updated as for pthread_create). To make raise use pthread_kill, it is make usable from vfork by getting the target thread id through gettid syscall. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Move cancel type out of cancelhandlingAdhemerval Zanella2021-06-098-170/+35
| | | | | | | | | | | | | | Now that the thread cancellation type is not accessed concurrently anymore, it is possible to move it out the cancelhandling. By removing the cancel state out of the internal thread cancel handling state there is no need to check if cancelled bit was set in CAS operation. It allows simplifing the cancellation wrappers and the CANCEL_CANCELED_AND_ASYNCHRONOUS is removed. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Move cancel state out of cancelhandlingAdhemerval Zanella2021-06-0914-63/+34
| | | | | | | | | | | | | | | Now that thread cancellation state is not accessed concurrently anymore, it is possible to move it out the 'cancelhandling'. The code is also simplified: CANCELLATION_P is replaced with a internal pthread_testcancel call and the CANCELSTATE_BIT{MASK} is removed. With this behavior pthread_setcancelstate does not require to act on cancellation if cancel type is asynchronous (is already handled either by pthread_setcanceltype or by the signal handler). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Remove CANCELING_BITMASKAdhemerval Zanella2021-06-094-106/+36
| | | | | | | | | | | | | | | | | | | | | | | | | | The CANCELING_BITMASK is used as an optimization to avoid sending the signal when pthread_cancel is called in a concurrent manner. This requires then to put both the cancellation state and type on a shared state (cancelhandling), since 'pthread_cancel' checks whether cancellation is enabled and asynchrnous to either cancel itself of sending the signal. It also requires handle the CANCELING_BITMASK on __pthread_disable_asynccancel, however this incurs in the same issues described on BZ#12683: the cancellation is acted upon even *after* syscall returns with user visible side-effects. This patch removes this optimization and simplifies the pthread cancellation implementation: pthread_cancel now first checks if cancellation is already pending and if not always, sends a signal if the target is not itself. The SIGCANCEL handler is also simpified since there is not need to setup a CAS loop. It also allows to move both the cancellation state and mode out of 'cancelhadling' (it is done in subsequent patches). Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Install cancellation handler on pthread_cancelAdhemerval Zanella2021-06-094-45/+28
| | | | | | | | Now that cancellation is not used anymore to handle thread setup creation failure, the sighandle can be installed only when pthread_cancel is actually used. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* nptl: Deallocate the thread stack on setup failure (BZ #19511)Adhemerval Zanella2021-06-093-88/+80
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To setup either the thread scheduling parameters or affinity, pthread_create enforce synchronization on created thread to wait until its parent either release PD ownership or send a cancellation signal if a failure occurs. However, cancelling the thread does not deallocate the newly created stack since cancellation expects that a pthread_join to deallocate any allocated thread resouces (threads stack or TLS). This patch changes on how the thread resource is deallocate in case of failure to be synchronous, where the creating thread will signal the created thread to exit early so it could be joined. The creating thread will be reponsible for the resource cleanup before returning to the caller. To signal the creating thread that a failure has occured, an unused 'struct pthread' member, parent_cancelhandling_unsed, now indicates whether the setup has failed so creating thread can proper exit. This strategy also simplifies by not using thread cancellation and thus not running libgcc_so load in the signal handler (which is avoided in thread cancellation since 'pthread_cancel' is the one responsible to dlopen libgcc_s). Another advantage is since the early exit is move to first step at thread creation, the signal mask is not already set and thus it can not act on change ID setxid handler. Checked on x86_64-linux-gnu and aarch64-linux-gnu.
* Remove stale references to libdl.aFlorian Weimer2021-06-093-8/+1
| | | | | | | | Since commit 0c1c3a771eceec46e66ce1183cf988e2303bd373 ("dlfcn: Move dlopen into libc") libdl.a is empty, so linking against it is no longer necessary. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Fix elf/tst-tls9-static after libdl cleanups.Stefan Liebler2021-06-091-2/+0
| | | | | | | | | | | | The testcase elf/tst-tls9-static sometimes fails with: cannot open 'tst-tlsmod5.so': tst-tlsmod5.so: cannot open shared object file: No such file or directory cannot open 'tst-tlsmod6.so': tst-tlsmod6.so: cannot open shared object file: No such file or directory After recent commit 6f1c701026287f6928d3bdd1aea7359308635abe "dlfcn: Cleanups after -ldl is no longer required" the libdl variable is not set anymore and thus the dependencies were missing.
* iconvdata: Split out non-essential gconv module configurationSiddhesh Poyarekar2021-06-093-1858/+1890
| | | | | | | | | Split module configuration so that only the bare minimum charsets, i.e. ANSI_X3.110, ISO8859-15, ISO8859-1, CP1252, UNICODE, UTF-16, UTF-32 and UTF-7 are configured in gconv-modules.conf. The remaining module configurations are now in gconv-modules-extra.conf. Reviewed-by: DJ Delorie <dj@redhat.com>
* iconvdata: Move gconv-modules configuration to gconv-modules.confSiddhesh Poyarekar2021-06-095-22/+44
| | | | | | | | | | | Move all gconv-modules configuration files to gconv-modules.conf. That is, the S390 extensions now become gconv-modules-s390.conf. Move both configuration files into gconv-modules.d. Now GCONV_PATH/gconv-modules is read only for backward compatibility for third-party gconv modules directories. Reviewed-by: DJ Delorie <dj@redhat.com>
* gconv_conf: Read configuration files in gconv-modules.dSiddhesh Poyarekar2021-06-091-6/+43
| | | | | | | | Read configuration files with names ending in .conf in GCONV_PATH/gconv-modules.d to mirror configuration flexibility in iconvconfig into the iconv program and function. Reviewed-by: DJ Delorie <dj@redhat.com>
* iconvconfig: Read configuration from gconv-modules.d subdirectorySiddhesh Poyarekar2021-06-091-6/+44
| | | | | | | | | | | | | | | In addition to GCONV_PATH/gconv-modules, also read module configuration from *.conf files in GCONV_PATH/gconv-modules.d. This allows a single gconv directory to have multiple sets of gconv modules but at the same time, a single modules cache. With this feature, one could separate the glibc supported gconv modules into a minimal essential set (ISO-8859-*, UTF, etc.) from the remaining modules. In future, these could be further segregated into langpack-associated sets with their own gconv-modules.d/someconfig.conf. Reviewed-by: DJ Delorie <dj@redhat.com>
* iconvconfig: Make file handling more general purposeSiddhesh Poyarekar2021-06-091-25/+40
| | | | | | | | Split out configuration file handling code from handle_dir into its own function so that it can be reused for multiple configuration files. Reviewed-by: DJ Delorie <dj@redhat.com>
* AArch64: Add support for roundeven[f]Wilco Dijkstra2021-06-082-0/+57
| | | | | | Add inline assembler for the roundeven functions. Passes GLIBC regression. Note GCC does not inline the builtin (PR100966), so this cannot be used for now.
* configure: Replaced obsolete AC_TRY_COMPILENaohiro Tamura2021-06-0413-81/+88
| | | | | | | | | | | | | | | | | This patch replaced obsolete AC_TRY_COMPILE to AC_COMPILE_IFELSE or AC_PREPROC_IFELSE. It has been confirmed that GNU 'autoconf' 2.69 suppressed obsolete warnings, updated the following files: - configure - sysdeps/mach/configure - sysdeps/mach/hurd/configure - sysdeps/s390/configure - sysdeps/unix/sysv/linux/configure and didn't change the following files: - sysdeps/ieee754/ldbl-opt/configure - sysdeps/unix/sysv/linux/powerpc/configure Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* libio: Assume _IO_lock_inexpensiveAdhemerval Zanella2021-06-043-15/+2
| | | | It is already set by both Linux and Hurd.
* nptl: Remove exit-thread.hAdhemerval Zanella2021-06-045-69/+4
| | | | | No function change. The code is used only for Linux, besides being included in generic code.
* Improve test coverage of strnlen functionSunil K Pandey2021-06-031-1/+10
| | | | | | | | | This patch covers the following condition: Strings start with different alignments and end with length less than or equal to 512 byte. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* dlfcn: Rework static dlopen hooksFlorian Weimer2021-06-0315-139/+54
| | | | | | | | | | | | | | Consolidate all hooks structures into a single one. There are no static dlopen ABI concerns because glibc 2.34 already comes with substantial ABI-incompatible changes in this area. (Static dlopen requires the exact same dynamic glibc version that was used for static linking.) The new approach uses a pointer to the hooks structure into _rtld_global_ro and initalizes it in __rtld_static_init. This avoids a back-and-forth with various callback functions. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Eliminate GLIBC_PRIVATE dependency from tststatic2Florian Weimer2021-06-032-2/+18
| | | | | | | | | The test appears to use _dlfcn_hook@@GLIBC_PRIVATE as a way to test dlvsym without having to know the appropriate symbol version. With <first-versions.h>, we can use a public symbol and the symbol version at which it was defined first. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Cleanups after -ldl is no longer requiredFlorian Weimer2021-06-0317-270/+60
| | | | | | | | | | | | This commit removes the ELF constructor and internal variables from dlfcn/dlfcn.c. The file now serves the same purpose as nptl/libpthread-compat.c, so it is renamed to dlfcn/libdl-compat.c. The use of libdl-shared-only-routines ensures that libdl.a is empty. This commit adjusts the test suite not to use $(libdl). The libdl.so symbolic link is no longer installed. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlopen into libcFlorian Weimer2021-06-0370-96/+193
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlvsym into libcFlorian Weimer2021-06-0369-65/+115
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlinfo into libcFlorian Weimer2021-06-0369-54/+120
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dladdr1 into libcFlorian Weimer2021-06-0368-50/+81
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlmopen into libcFlorian Weimer2021-06-0369-73/+154
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlsym into libcFlorian Weimer2021-06-0370-60/+108
| | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. In elf/Makefile, remove the $(libdl) dependency from testobj1.so because it the unused libdl DSO now causes elf/tst-unused-deps to fail. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dladdr into libcFlorian Weimer2021-06-0368-50/+78
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* dlfcn: Move dlclose into libcFlorian Weimer2021-06-0368-57/+83
| | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Improve test coverage of strlen functionSunil K Pandey2021-06-021-1/+14
| | | | | | | | | | | This patch covers the following conditions: - Strings start with different alignments and end at the page boundary with less than 64 byte length. - Strings starts with different alignments and cross page boundary with fixed length. Reviewed-by: H.J. Lu <hjl.tools@gmail.com>
* fix typoXeonacid2021-06-022-2/+2
| | | | | "accomodate" should be "accommodate" Reviewed-by: Paul Zimmermann <Paul.Zimmermann@inria.fr>
* dlfcn: Move dlerror into libcFlorian Weimer2021-06-0268-66/+104
| | | | | | | | | | | | | | The symbol was moved using scripts/move-symbol-to-libc.py. There is a minor functionality enhancement: dlerror now sets errno if it was set as part of the exception. (This is the result of using %m in asprintf, to avoid the strerror PLT call.) The previous errno value upon function return was unpredictable. Documenting this as a feature is premature; we need to make sure that the error codes are meaningful when they are set by the dynamic loader. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add libc ABI extension kludge for baseline-violating libdl symbolsFlorian Weimer2021-06-025-1/+29
| | | | | | | | | | | | | | | | | | | Some targets have a GLIBC_2.0 baseline for libdl, while using GLIBC_2.2 for libc. This means that the generated libc.map file does not have any version nodes for GLIBC_2.0 or GLIBC_2.1. However, moving symbols from libdl into libc needs such version nodes. (Future symbol moves from librt will need this as well.) This kludge is only necessary for symbols predating GLIBC_2.2 because the affected targets use GLIBC_2.2 as the baseline for libc. Given the small number and fixed set of affected architectures, no generic mechanism is implemented, and instead the map file fragment is hard-coded in scripts/versions.mk. The compat_symbol macro already emits the appropriate version strings, so no adjustments are needed there. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* scripts/versions.awk: Add local: * to all version nodesFlorian Weimer2021-06-021-5/+1
| | | | | | | | | | | | This requires that all exported symbol versions are listed in Versions files. It results in more consistent behavior across architectures because previously, symbols could be exported via explicit versioned_symbol and compat_symbol macros if the version node existed in some Versions file (without listing the symbol), and it was not the base version for the library (which already had the local: * directive). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add missing symbols to Version filesFlorian Weimer2021-06-0218-47/+73
| | | | | | | | | Some symbols have explicit versioned_symbol or compat_symbol markers in the sources, but no corresponding entry in the Versions files. This presently works because the local: * directive is only applied to the base version. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Fix use of __pthread_attr_copy in mq_notify (bug 27896)Florian Weimer2021-06-021-2/+9
| | | | | | | | | | | | | | __pthread_attr_copy can fail and does not initialize the attribute structure in that case. If __pthread_attr_copy is never called and there is no allocated attribute, pthread_attr_destroy should not be called, otherwise there is a null pointer dereference in rt/tst-mqueue6. Fixes commit 42d359350510506b87101cf77202fefcbfc790cb ("Use __pthread_attr_copy in mq_notify (bug 27896)"). Reviewed-by: Siddhesh Poyarekar <siddhesh@sourceware.org>
* Use __pthread_attr_copy in mq_notify (bug 27896)Andreas Schwab2021-06-012-5/+14
| | | | | Make a deep copy of the pthread attribute object to remove a potential use-after-free issue.
* Update floating-point feature test macro handling for C2XJoseph Myers2021-06-016-14/+71
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | ISO C2X has made some changes to the handling of feature test macros related to features from the floating-point TSes, and to exactly what such features are present in what headers, that require corresponding changes in glibc. * For the few features that were controlled by __STDC_WANT_IEC_60559_BFP_EXT__ (and the corresponding DFP macro) in C2X, there is now instead a new feature test macro __STDC_WANT_IEC_60559_EXT__ covering both binary and decimal FP. This controls CR_DECIMAL_DIG in <float.h> (provided by GCC; I implemented support for the new feature test macro for GCC 11) and the totalorder and payload functions in <math.h>. C2X no longer says anything about __STDC_WANT_IEC_60559_BFP_EXT__ (so it's appropriate for that macro to continue to enable exactly the features from TS 18661-1). * The SNAN macros for each floating-point type have moved to <float.h> (and been renamed in the process). Thus, the copies in <math.h> should only be defined for __STDC_WANT_IEC_60559_BFP_EXT__, not for C2X. * The fmaxmag and fminmag functions have been removed (replaced by new functions for the new min/max operations in IEEE 754-2019). Thus those should also only be declared for __STDC_WANT_IEC_60559_BFP_EXT__. * The _FloatN / _FloatNx handling for the last two points in glibc is trickier, since __STDC_WANT_IEC_60559_TYPES_EXT__ is still in C2X (the integration of TS 18661-3 as an Annex, that is, which hasn't yet been merged into the C standard git repository but has been accepted by WG14), so C2X with that macro should not declare some things that are declared for older standards with that macro. The approach taken here is to provide the declarations (when __STDC_WANT_IEC_60559_TYPES_EXT__ is enabled) only when (defined __USE_GNU || !__GLIBC_USE (ISOC2X)), so if C2X features are enabled then those declarations (that are only in TS 18661-3 and not in C2X) will only be provided if _GNU_SOURCE is defined as well. Thus _GNU_SOURCE remains a superset of the TS features as well as of C2X. Some other somewhat related changes in C2X are not addressed here. There's an open proposal not to include the fmin and fmax functions for the _FloatN / _FloatNx types, given the new min/max operations, which could be handled like the previous point if adopted. And the fromfp functions have been changed to return a result in floating type rather than intmax_t / uintmax_t; my inclination there is to treat that like that change of totalorder type (new symbol versions etc. for the ABI change; old versions become compat symbols and are no longer supported as an API). Tested for x86_64 and x86.
* stdio-common: Remove _IO_vfwscanfFlorian Weimer2021-06-014-42/+1
| | | | | | | | | The symbol has never been exported, so no compatibility symbol is needed. Removing this file prevents ld from creation an exported symbol in case GLIBC_2_0 expands to a symbol version which does not have a local: *; directive in the symbol version map file. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* aarch64: align stack in clone [BZ #27939]Szabolcs Nagy2021-06-011-0/+2
| | | | | | | The AArch64 PCS requires 16 byte aligned stack. Previously if the caller passed an unaligned stack to clone then the child crashed. Fixes bug 27939.
* powerpc: Optimized memcmp for power10Lucas A. M. Magalhaes2021-05-315-1/+218
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch was based on the __memcmp_power8 and the recent __strlen_power10. Improvements from __memcmp_power8: 1. Don't need alignment code. On POWER10 lxvp and lxvl do not generate alignment interrupts, so they are safe for use on caching-inhibited memory. Notice that the comparison on the main loop will wait for both VSR to be ready. Therefore aligning one of the input address does not improve performance. In order to align both registers a vperm is necessary which add too much overhead. 2. Uses new POWER10 instructions This code uses lxvp to decrease contention on load by loading 32 bytes per instruction. The vextractbm is used to have a smaller tail code for calculating the return value. 3. Performance improvement This version has around 35% better performance on average. I saw no performance regressions for any length or alignment. Thanks Matheus for helping me out with some details. Co-authored-by: Matheus Castanho <msc@linux.ibm.com> Reviewed-by: Raphael M Zinsly <rzinsly@linux.ibm.com>
* x86-64: Align child stack to 16 bytes [BZ #27902]H.J. Lu2021-05-313-4/+103
| | | | | | | In the x86-64 clone wrapper, align child stack to 16 bytes per the x86-64 psABI. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* support: Do not build xpthread_attr_setaffinity_np for hurdAdhemerval Zanella2021-05-282-0/+4
| | | | It does not provide pthread_attr_setaffinity_np extension.
* nptl: Add pthread_attr_setaffinity_np failure testAdhemerval Zanella2021-05-272-0/+60
| | | | | | | | It checks whether an invalid affinity mask does return an error, similar to what sysdeps/pthread/tst-bad-schedattr.c does for pthread_attr_setschedparam. Checked on x86_64-linux-gnu.
* support: Add xpthread_attr_setaffinity_np wrapperAdhemerval Zanella2021-05-273-0/+32
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* nptl: Move createthread to pthread_createAdhemerval Zanella2021-05-272-166/+115
| | | | | | | | The 'create_thread' function is moved to pthread_create.c. It removes the START_THREAD_DEFN and START_THREAD_SELF macros and make the lock usage more clear (no need to cross-reference multiple files). No functional change.
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