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* manual/jobs.texi: remove unused var from example codeAurélien Aptel2020-06-031-1/+0
| | | | | | The do_job_notification() function defines a variable without using it. Remove it. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* mbstowcs: Document, test, and fix null pointer dst semantics (Bug 25219)Carlos O'Donell2020-06-011-4/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | The function mbstowcs, by an XSI extension to POSIX, accepts a null pointer for the destination wchar_t array. This API behaviour allows you to use the function to compute the length of the required wchar_t array i.e. does the conversion without storing it and returns the number of wide characters required. We remove the __write_only__ markup for the first argument because it is not true since the destination may be a null pointer, and so the length argument may not apply. We remove the markup otherwise the new test case cannot be compiled with -Werror=nonnull. We add a new test case for mbstowcs which exercises the destination is a null pointer behaviour which we have now explicitly documented. The mbsrtowcs and mbsnrtowcs behave similarly, and mbsrtowcs is documented as doing this in C11, even if the standard doesn't come out and call out this specific use case. We add one note to each of mbsrtowcs and mbsnrtowcs to call out that they support a null pointer for the destination. The wcsrtombs function behaves similarly but in the other way around and allows you to use a null destination pointer to compute how many bytes you would need to convert the wide character input. We document this particular case also, but leave wcsnrtombs as a references to wcsrtombs, so the reader must still read the details of the semantics for wcsrtombs.
* manual: Fix backtraces code example [BZ #10441]Girish Joshi2020-05-291-6/+7
| | | | | | | | | | | | Validation for pointer returned by backtrace_symbols () added. Type of variables size and i is changed from size_t to int. Variable size is used to collect the result from backtrace () that is an int. i is the loop counter variable so it can be an int. Since, size_t size is changed to int size, in printf %zd is changed to %d. Reviewed-by: DJ Delorie <dj@redhat.com>
* signal: Deprecate additional legacy signal handling functionsFlorian Weimer2020-05-251-0/+6
| | | | | | | | | | This needs a few test adjustments: In some cases, sigignore was used for convenience (replaced with xsignal with SIG_IGN). Tests for the deprecated functions need to disable -Wdeprecated-declarations, and for the sigmask deprecation, -Wno-error. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* manual: Add missing section and node for clockid_t wait functionsFlorian Weimer2020-05-201-0/+8
| | | | | | | | | | Without this, these functions appear under the node Default Thread Attributes, which is confusing. Eventually, the documentation should be merged with the (yet to be documented) standardized functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* x86: Add --enable-cet=permissiveH.J. Lu2020-05-181-4/+8
| | | | | | | | | | | | | | | | | | | | | | | | | When CET is enabled, it is an error to dlopen a non CET enabled shared library in CET enabled application. It may be desirable to make CET permissive, that is disable CET when dlopening a non CET enabled shared library. With the new --enable-cet=permissive configure option, CET is disabled when dlopening a non CET enabled shared library. Add DEFAULT_DL_X86_CET_CONTROL to config.h.in: /* The default value of x86 CET control. */ #define DEFAULT_DL_X86_CET_CONTROL cet_elf_property which enables CET features based on ELF property note. --enable-cet=permissive it to /* The default value of x86 CET control. */ #define DEFAULT_DL_X86_CET_CONTROL cet_permissive which enables CET features permissively. Update tst-cet-legacy-5a, tst-cet-legacy-5b, tst-cet-legacy-6a and tst-cet-legacy-6b to check --enable-cet and --enable-cet=permissive.
* manual: Document the O_NOFOLLOW open flagFlorian Weimer2020-05-051-0/+7
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* powerpc64le: blacklist broken GCC compilers (e.g GCC 7.5.0)Paul E. Murphy2020-04-301-2/+8
| | | | | | | | | | | GCC 7.5.0 (PR94200) will refuse to compile if both -mabi=% and -mlong-double-128 are passed on the command line. Surprisingly, it will work happily if the latter is not. For the sake of maintaining status quo, test for and blacklist such compilers. Tested with a GCC 8.3.1 and GCC 7.5.0 compiler for ppc64le. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* powerpc64le: bump binutils version requirement to >= 2.26Paul E. Murphy2020-04-301-0/+4
| | | | | | | This is a small step up from 2.25 which brings in support for rewriting the .gnu.attributes section of libc/libm.so. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* powerpc64le: raise GCC requirement to 7.4 for long double transitionPaul E. Murphy2020-04-301-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add compiler feature tests to ensure we can build ieee128 long double. These test for -mabi=ieeelongdouble, -mno-gnu-attribute, and -Wno-psabi. Likewise, verify some compiler bugs have been addressed. These aren't helpful for building glibc, but may cause test failures when testing the new long double. See notes below from Raji. On powerpc64le, some older compiler versions give error for the function signbit() for 128-bit floating point types. This is fixed by PR83862 in gcc 8.0 and backported to gcc6 and gcc7. This patch adds a test to check compiler version to avoid compiler errors during make check. Likewise, test for -mno-gnu-attribute support which was On powerpc64le, a few files are built on IEEE long double mode (-mabi=ieeelongdouble), whereas most are built on IBM long double mode (-mabi=ibmlongdouble, the default for -mlong-double-128). Since binutils 2.31, linking object files with different long double modes causes errors similar to: ld: libc_pic.a(s_isinfl.os) uses IBM long double, libc_pic.a(ieee128-qefgcvt.os) uses IEEE long double. collect2: error: ld returned 1 exit status make[2]: *** [../Makerules:649: libc_pic.os] Error 1 The warnings are fair and correct, but in order for glibc to have support for both long double modes on powerpc64le, they have to be ignored. This can be accomplished with the use of -mno-gnu-attribute option when building the few files that require IEEE long double mode. However, -mno-gnu-attribute is not available in GCC 6, the minimum version required to build glibc, so this patch adds a test for this feature in powerpc64le builds, and fails early if it's not available. Co-Authored-By: Rajalakshmi Srinivasaraghavan <raji@linux.vnet.ibm.com> Co-Authored-By: Gabriel F. T. Gomes <gabrielftg@linux.ibm.com> Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* manual: Fix typos in the fexecve descriptionFlorian Weimer2020-04-291-1/+1
| | | | Reported by Michael Kerrisk.
* manual: Document the fexecve functionFlorian Weimer2020-04-271-0/+13
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* Remove __NO_MATH_INLINESAdhemerval Zanella2020-04-171-6/+0
| | | | | | With fenvinline.h removal the flag is not used anymore. Checked on x86_64-linux-gnu.
* Linux: Remove <sys/sysctl.h> and the sysctl functionFlorian Weimer2020-04-151-144/+0
| | | | | | | | | | | | | | | Linux 5.5 remove the system call in commit 61a47c1ad3a4dc6882f01ebdc88138ac62d0df03 ("Linux: Remove <sys/sysctl.h>"). Therefore, the compat function is just a stub that sets ENOSYS. Due to SHLIB_COMPAT, new ports will not add the sysctl function anymore automatically. x32 already lacks the sysctl function, so an empty sysctl.c file is used to suppress it. Otherwise, a new compat symbol would be added. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Add GRND_INSECURE from Linux 5.6 to sys/random.hJoseph Myers2020-04-091-0/+3
| | | | | | | | | | This patch adds the GRND_INSECURE constant from Linux 5.6 to glibc's sys/random.h. This is also added to the documentation. The constant acts as a no-op for the Hurd implementation (as that doesn't check whether the flags are known), which is semantically fine, while older Linux kernels reject unknown flags with an EINVAL error. Tested for x86_64.
* Extended Char Intro: Use getwc in example (Bug 25626)Carlos O'Donell2020-03-201-1/+1
| | | | | | | | In the "Extended Char Intro" the example incorrectly uses a function called wgetc which doesn't exist. The example is corrected to use getwc, which is correct for the use in this case. Reported-by: Toomas Rosin <toomas@rosin.ee>
* manual: Fix inconsistent declaration of wcsrchr [BZ #24655]Girish Joshi2020-03-131-1/+1
| | | | Reviewed-by: DJ Delorie <dj@redhat.com>
* manual: Fix wrong declaration of wcschr [BZ #24654]Girish Joshi2020-03-051-1/+1
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* manual: Fix typo in parse_printf_format example [BZ #24638]Girish Joshi2020-03-041-1/+1
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* Update newest tested versions of dependencies in install.texiSiddhesh Poyarekar2020-02-011-5/+5
| | | | Updated versions of gcc, binutils, awk, bison and perl.
* Add more contributors to the manualSiddhesh Poyarekar2020-02-011-0/+18
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* Fix tst-pkey.c pkey_alloc return checks and manualLucas A. M. Magalhaes2020-01-171-0/+4
| | | | | | | | | | | | This test was failing in some powerpc systems as it was not checking for ENOSPC return. As said on the Linux man-pages and can be observed by the implementation at mm/mprotect.c in the Linux Kernel source. The syscall pkey_alloc can return EINVAL or ENOSPC. ENOSPC will indicate either that all keys are in use or that the kernel does not support pkeys. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.net.br>
* Update copyright dates with scripts/update-copyrights.Joseph Myers2020-01-0148-48/+48
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* aarch64: Add Huawei Kunpeng to tunable cpu listXuelei Zhang2019-12-191-1/+1
| | | | | | | | | | | Kunpeng processer is a 64-bit Arm-compatible CPU released by Huawei, and we have already signed a copyright assignement with the FSF. This patch adds its to cpu list, and related macro for IFUNC. Checked on aarch64-linux-gnu. Reviewed-by: Szabolcs Nagy <Szabolcs.Nagy@arm.com>
* manual: clarify fopen with the x flagPaul Eggert2019-12-111-1/+3
| | | | | * manual/stdio.texi (Opening Streams): Say how glibc's implementation of fopen with "x" follows ISO C11.
* nptl: Fix niggles with pthread_clockjoin_npMike Crowe2019-11-041-1/+1
| | | | | | | | | | | | | | | | | | | Joseph Myers spotted[1] that 69ca4b54c151cec42ccca5e05790efc1a8206b47 added pthread_clockjoin_np to sysdeps/nptl/pthread.h but not to its hppa-specific equivalent sysdeps/unix/sysv/linux/hppa/pthread.h. Rafal Luzynski spotted[2] typos in the NEWS entry and manual updates too. Florian Weimer spotted[3] that the clockid parameter was not using a reserved identifier in pthread.h. [1] https://sourceware.org/ml/libc-alpha/2019-11/msg00016.html [2] https://sourceware.org/ml/libc-alpha/2019-11/msg00019.html [3] https://sourceware.org/ml/libc-alpha/2019-11/msg00022.html Reviewed-by: Joseph Myers <joseph@codesourcery.com> Reviewed-by: Rafal Luzynski <digitalfreak@lingonborough.com> Reviewed-by: Florian Weimer <fw@deneb.enyo.de>
* nptl: Add pthread_clockjoin_npMike Crowe2019-11-011-0/+12
| | | | | | | | | | | Introduce pthread_clockjoin_np as a version of pthread_timedjoin_np that accepts a clockid_t parameter to indicate which clock the timeout should be measured against. This mirrors the recently-added POSIX-proposed "clock" wait functions. Checked on x86_64-linux-gnu. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* manual: Add documentation for pthread_tryjoin_np and pthread_timedjoin_npMike Crowe2019-11-011-2/+24
| | | | Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Revise the documentation of simple calendar time.Zack Weinberg2019-10-304-471/+611
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This is a thorough revision of all the material relating to the functions time, stime, gettimeofday, settimeofday, clock_gettime, clock_getres, clock_settime, and difftime, spilling over into the discussion of time-related data types (which now get their own section) and touching the adjtime family as well (which deserves its own thorough revision, but I'd have to do a bunch of research first). Substantive changes are: * Document clock_gettime, clock_getres, and clock_settime. (Only CLOCK_REALTIME and CLOCK_MONOTONIC are documented; the others are either a bit too Linux-specific, or have more to do with measuring CPU/processor time. That section _also_ deserves its own thorough revision but again I'd have to do a bunch of research first.) * Present gettimeofday, settimeofday, and struct timeval as obsolete relative to clock_*. * Remove the documentation of struct timezone. Matching POSIX, say that the type of the second argument to gettimeofday and settimeofday is [const] void *. * Clarify ISO C and POSIX's requirements on time_t. Clarify the circumstances under which difftime is equivalent to simple subtraction. * Consolidate documentation of most of the time-related data types into a new section "Time Types," right after "Time Basics." (The exceptions are struct tm, which stays in "Broken-down Time," and struct times, which stays in "Processor And CPU Time." * The "Elapsed Time" section is now called "Calculating Elapsed Time" and includes only difftime and the discussion of how to compute timeval differences by hand. * Fold the "Simple Calendar Time," "High Resolution Calendar," and "High Accuracy Clock" sections together into two new sections titled "Getting the Time" and "Setting and Adjusting the Time."
* manual: Remove warning in the documentation of the abort functionFlorian Weimer2019-10-111-8/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The warning is confusing to those who do not understand the context, and the warning is easy to misunderstand: A reader needs to know that it was written by someone who is generally skeptical of government influence and control, otherwise it reads as an affirmation of the U.S. government's role as the ultimate editor of the manual. This is precisely the opposite of what the warning intends to convey. (Reportedly, it criticizes that several U.S. administrations have tried to restrict the medical advice that U.S.-funded health care workers can provide abroad, considering that censorship.) The warning is also misleading on a technical level. A reader who makes the connection to pregnancy termination will get the wrong impression that calling the abort function will terminate subprocesses of the current process, but this is not what generally happens. Finally, for both GNU and the FSF, it is inappropriate to use female reproductive health as mere joke material, since these organizations do not concern themselves with such issues otherwise, and the warning is purportedly about something else entirely. This reinstates commit 340d9652b9d0e1d4136588f18b726662d195777c ("manual/startup.texi (Aborting a Program): Remove inappropriate joke."), effectively reverting the revert in commit ffa81c22a3ac0fb75ad9bf2b1c3cdbf9eafa0bc9 ("Revert:"). Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org> Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Prefer https to http for gnu.org and fsf.org URLsPaul Eggert2019-09-0748-48/+48
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Also, change sources.redhat.com to sourceware.org. This patch was automatically generated by running the following shell script, which uses GNU sed, and which avoids modifying files imported from upstream: sed -ri ' s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g ' \ $(find $(git ls-files) -prune -type f \ ! -name '*.po' \ ! -name 'ChangeLog*' \ ! -path COPYING ! -path COPYING.LIB \ ! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \ ! -path manual/texinfo.tex ! -path scripts/config.guess \ ! -path scripts/config.sub ! -path scripts/install-sh \ ! -path scripts/mkinstalldirs ! -path scripts/move-if-change \ ! -path INSTALL ! -path locale/programs/charmap-kw.h \ ! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \ ! '(' -name configure \ -execdir test -f configure.ac -o -f configure.in ';' ')' \ ! '(' -name preconfigure \ -execdir test -f preconfigure.ac ';' ')' \ -print) and then by running 'make dist-prepare' to regenerate files built from the altered files, and then executing the following to cleanup: chmod a+x sysdeps/unix/sysv/linux/riscv/configure # Omit irrelevant whitespace and comment-only changes, # perhaps from a slightly-different Autoconf version. git checkout -f \ sysdeps/csky/configure \ sysdeps/hppa/configure \ sysdeps/riscv/configure \ sysdeps/unix/sysv/linux/csky/configure # Omit changes that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines git checkout -f \ sysdeps/powerpc/powerpc64/ppc-mcount.S \ sysdeps/unix/sysv/linux/s390/s390-64/syscall.S # Omit change that caused a pre-commit check to fail like this: # remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
* Correct the spelling of more contributorsPaul Eggert2019-08-291-1/+2
| | | | | Correct the spellings of Rafael Ávila de Espíndola, Uroš Bizjak, Alexandra Hájková, and Rafał Lużyński.
* Don't put non-ASCII into installed headersPaul Eggert2019-08-231-0/+9
| | | | | | | | Move non-ASCII contributor names from installed headers into contrib.texi when possible, and when it's not (the copyright notice in sysdeps/unix/sysv/linux/mips/sys/user.h) go back to ASCIIfied names. Problem reported by Joseph Myers in: https://www.sourceware.org/ml/libc-alpha/2019-08/msg00646.html
* Fix spellings of contributor names in comments and docPaul Eggert2019-08-231-1/+1
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* Document strftime %Ob and %OB as C2X features.Joseph Myers2019-08-221-5/+11
| | | | | | | | | | | | | | | C2X standardizes strftime %Ob and %OB support. This patch updates the glibc manual to say these are C2X features, while noting that the details of what is the alternative form of a month name are not specified in C2X. Note: C2X seems unclear to me about whether %h being equivalent to %b means %Oh is thereby allowed and equivalent to %Ob; I've asked WG14. Tested with "make info" and "make pdf". * manual/time.texi (strftime): Document %Ob and %OB as C2X features.
* nss: Make nsswitch.conf more distribution friendly.Carlos O'Donell2019-08-191-5/+19
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The current default nsswitch.conf file provided by glibc is not very distribution friendly. The file contains some minimal directives that no real distribution uses. This update aims to provide a rich set of comments which are useful for all distributions, and a broader set of service defines which should work for all distributions. Tested defaults on x86_64 and they work. The nsswitch.conf file more closely matches what we have in Fedora now, and I'll adjust Fedora to use this version with minor changes to enable Fedora-specific service providers. v2 - Add missing databases to manual. - Add link to manual from default nsswitch.conf. - Sort nsswitch.conf according to most used database first. v3 - Only mention implemented services in 'NSS Basics.' - Mention 'automount' in 'Services in the NSS configuration.' - Sort services in alphabetical order. v4 - Project name is 'Samba'. v5 - Fix typo in manual/nss.texi. v6 - Fix another typo in manual/nss.texi. Ran spell checker this time.
* Make totalorder and totalordermag functions take pointer arguments.Joseph Myers2019-08-151-14/+16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The resolution of C floating-point Clarification Request 25 <http://www.open-std.org/jtc1/sc22/wg14/www/docs/n2397.htm#dr_25> is that the totalorder and totalordermag functions should take pointer arguments, and this has been adopted in C2X (with const added; note that the integration of this change into C2X is present in the C standard git repository but postdates the most recent public PDF draft). This patch updates glibc accordingly. As a defect resolution, the API is changed unconditionally rather than supporting any sort of TS 18661-1 mode for compilation with the old version of the API. There are compat symbols for existing binaries that pass floating-point arguments directly. As a consequence of changing to pointer arguments, there are no longer type-generic macros in tgmath.h for these functions. Because of the fairly complicated logic for creating libm function aliases and determining the set of aliases to create in a given glibc configuration, rather than duplicating all that in individual source files to create the versioned and compat symbols, the source files for the various versions of totalorder functions are set up to redefine weak_alias before using libm_alias_* macros to create the symbols required. In turn, this requires creating a separate alias for each symbol version pointing to the same implementation (see binutils bug <https://sourceware.org/bugzilla/show_bug.cgi?id=23840>), which is done automatically using __COUNTER__. (As I noted in <https://sourceware.org/ml/libc-alpha/2018-10/msg00631.html>, it might well make sense for glibc's symbol versioning macros to do that alias creation with __COUNTER__ themselves, which would somewhat simplify the logic in the totalorder source files.) It is of course desirable to test the compat symbols. I did this with the generic libm-test machinery, but didn't wish to duplicate the actual tables of test inputs and outputs, and thought it risky to attempt to have a single object file refer to both default and compat versions of the same function in order to test them together. Thus, I created libm-test-compat_totalorder.inc and libm-test-compat_totalordermag.inc which include the generated .c files (with the processed version of those tables of inputs) from the non-compat tests, and added appropriate dependencies. I think this provides sufficient test coverage for the compat symbols without also needing to make the special ldbl-96 and ldbl-128ibm tests (of peculiarities relating to the representations of those formats that can't be covered in the generic tests) run for the compat symbols. Tests of compat symbols need to be internal tests, meaning _ISOMAC is not defined. Making some libm-test tests into internal tests showed up two other issues. GCC diagnoses duplicate macro definitions of __STDC_* macros, including __STDC_WANT_IEC_60559_TYPES_EXT__; I added an appropriate conditional and filed <https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91451> for this issue. On ia64, include/setjmp.h ends up getting included indirectly from libm-symbols.h, resulting in conflicting definitions of the STR macro (also defined in libm-test-driver.c); I renamed the macros in include/setjmp.h. (It's arguable that we should have common internal headers used everywhere for stringizing and concatenation macros.) Tested for x86_64 and x86, and with build-many-glibcs.py. * math/bits/mathcalls.h [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalorder): Take pointer arguments. [__GLIBC_USE (IEC_60559_BFP_EXT) || __MATH_DECLARING_FLOATN] (totalordermag): Likewise. * manual/arith.texi (totalorder): Likewise. (totalorderf): Likewise. (totalorderl): Likewise. (totalorderfN): Likewise. (totalorderfNx): Likewise. (totalordermag): Likewise. (totalordermagf): Likewise. (totalordermagl): Likewise. (totalordermagfN): Likewise. (totalordermagfNx): Likewise. * math/tgmath.h (__TGMATH_BINARY_REAL_RET_ONLY): Remove macro. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalorder): Likewise. [__GLIBC_USE (IEC_60559_BFP_EXT)] (totalordermag): Likewise. * math/Versions (GLIBC_2.31): Add totalorder, totalorderf, totalorderl, totalordermag, totalordermagf, totalordermagl, totalorderf32, totalorderf64, totalorderf32x, totalordermagf32, totalordermagf64, totalordermagf32x, totalorderf64x, totalordermagf64x, totalorderf128 and totalordermagf128. * math/Makefile (libm-test-funcs-noauto): Add compat_totalorder and compat_totalordermag. (libm-test-funcs-compat): New variable. (libm-tests-compat): Likewise. (tests): Do not include compat tests. (tests-internal): Add compat tests. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalorder.o)): Depend on $(objpfx)libm-test-totalorder.c. ($(foreach t,$(libm-tests-base), $(objpfx)$(t)-compat_totalordermag.o): Depend on $(objpfx)libm-test-totalordermag.c. (tgmath3-macros): Remove totalorder and totalordermag. * math/libm-test-compat_totalorder.inc: New file. * math/libm-test-compat_totalordermag.inc: Likewise. * math/libm-test-driver.c (struct test_ff_i_data): Update comment. (RUN_TEST_fpfp_b): New macro. (RUN_TEST_LOOP_fpfp_b): Likewise. * math/libm-test-totalorder.inc (totalorder_test_data): Use TEST_fpfp_b. (totalorder_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/libm-test-totalordermag.inc (totalordermag_test_data): Use TEST_fpfp_b. (totalordermag_test): Condition on [!COMPAT_TEST]. (do_test): Likewise. * math/gen-tgmath-tests.py (Tests.add_all_tests): Remove totalorder and totalordermag. * math/test-tgmath.c (NCALLS): Change to 132. (F(compile_test)): Do not call totalorder or totalordermag. (F(totalorder)): Remove. (F(totalordermag)): Likewise. * include/float.h (__STDC_WANT_IEC_60559_TYPES_EXT__): Do not define if [__STDC_WANT_IEC_60559_TYPES_EXT__]. * include/setjmp.h [!_ISOMAC] (STR_HELPER): Rename to SJSTR_HELPER. [!_ISOMAC] (STR): Rename to SJSTR. Update call to STR_HELPER. [!_ISOMAC] (TEST_SIZE): Update call to STR. [!_ISOMAC] (TEST_ALIGN): Likewise. [!_ISOMAC] (TEST_OFFSET): Likewise. * sysdeps/ieee754/dbl-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalorder.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorder): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/dbl-64/wordsize-64/s_totalordermag.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermag): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/float128/float128_private.h (__totalorder_compatl): New macro. (__totalordermag_compatl): Likewise. * sysdeps/ieee754/flt-32/s_totalorderf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/flt-32/s_totalordermagf.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagf): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalorderl.c: Include <shlib-compat.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-128ibm/s_totalordermagl.c: Include <shlib-compat.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalorderl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalorderl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-96/s_totalordermagl.c: Include <shlib-compat.h> and <first-versions.h>. (__totalordermagl): Take pointer arguments. Add symbol versions and compat symbols. * sysdeps/ieee754/ldbl-opt/nldbl-totalorder.c (totalorderl): Take pointer arguments. * sysdeps/ieee754/ldbl-opt/nldbl-totalordermag.c (totalordermagl): Likewise. * sysdeps/ieee754/ldbl-128ibm/test-totalorderl-ldbl-128ibm.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/ieee754/ldbl-96/test-totalorderl-ldbl-96.c (do_test): Update calls to totalorderl and totalordermagl. * sysdeps/mach/hurd/i386/libm.abilist: Update. * sysdeps/unix/sysv/linux/aarch64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/alpha/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/arm/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/csky/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/hppa/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/microblaze/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/nios2/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/fpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sh/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise.
* Add feature test macro _ISOC2X_SOURCE.Joseph Myers2019-08-131-0/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch starts preparation for C2X support in glibc headers by adding a feature test macro _ISOC2X_SOURCE and corresponding __GLIBC_USE (ISOC2X). (I chose to use the newer __GLIBC_USE style for this rather than the older __USE_* macros tested with #ifdef.) As with other such macros, C2X features are also enabled by compiling for a standard newer than C17, or by using _GNU_SOURCE. This patch does not itself enable anything new in the headers for C2X; that is to be done in followup patches. (For example, most of the TS 18661-1 functions should be declared for C2X without any __STDC_WANT_IEC_60559_BFP_EXT__ being needed, but the ones that 18661-1 adds to Annex F because of their close relation to IEEE 754 formats do still need the WANT macro in C2X.) Once C2X becomes an actual standard we'll presumably move to using the actual year in the feature test macro and __GLIBC_USE, with some period when both macro spellings are accepted, as was done with _ISOC9X_SOURCE. Tested for x86_64. * include/features.h (_ISOC2X_SOURCE): New feature test macro. Undefine and define to 1 if [_GNU_SOURCE]. (__GLIBC_USE_ISOC2X): New macro. Undefine and redefine depending on [_ISOC2X_SOURCE] and [__STDC_VERSION__ > 201710L]. (__USE_ISOC11): Also define to 1 if [_ISOC2X_SOURCE]. (__USE_ISOC99): Likewise. (__USE_ISOC95): Likewise. * manual/creature.texi (_ISOC2X_SOURCE): Document.
* Add glibc.malloc.mxfast tunableDJ Delorie2019-08-091-0/+12
| | | | | | | | | | | | * elf/dl-tunables.list: Add glibc.malloc.mxfast. * manual/tunables.texi: Document it. * malloc/malloc.c (do_set_mxfast): New. (__libc_mallopt): Call it. * malloc/arena.c: Add mxfast tunable. * malloc/tst-mxfast.c: New. * malloc/Makefile: Add it. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* login: Remove utmp backend jump tables [BZ #23518]Florian Weimer2019-08-051-10/+10
| | | | | | | There is just one file-based implementation, so this dispatch mechanism is unnecessary. Instead of the vtable pointer __libc_utmp_jump_table, use a non-negative file_fd as the indicator that the backend is initialized.
* Update install and NEWS for 2.30 release.Carlos O'Donell2019-08-011-5/+5
|
* Linux: Move getdents64 to <dirent.h>Florian Weimer2019-07-291-1/+1
| | | | | | This matches the location of the declaration in musl. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Add POSIX-proposed pthread_rwlock_clockrdlock & pthread_rwlock_clockwrlockMike Crowe2019-07-121-0/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add: int pthread_rwlock_clockrdlock (pthread_rwlock_t *rwlock, clockid_t clockid, const struct timespec *abstime) and: int pthread_rwlock_clockwrlock (pthread_rwlock_t *rwlock, clockid_t clockid, const struct timespec *abstime) which behave like pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock respectively, except they always measure abstime against the supplied clockid. The functions currently support CLOCK_REALTIME and CLOCK_MONOTONIC and return EINVAL if any other clock is specified. * sysdeps/nptl/pthread.h: Add pthread_rwlock_clockrdlock and pthread_wrlock_clockwrlock. * nptl/Makefile: Build pthread_rwlock_clockrdlock.c and pthread_rwlock_clockwrlock.c. * nptl/pthread_rwlock_clockrdlock.c: Implement pthread_rwlock_clockrdlock. * nptl/pthread_rwlock_clockwrlock.c: Implement pthread_rwlock_clockwrlock. * nptl/pthread_rwlock_common.c (__pthread_rwlock_rdlock_full): Add clockid parameter and verify that it indicates a supported clock on entry so that we fail even if it doesn't end up being used. Pass that clock on to futex_abstimed_wait when necessary. (__pthread_rwlock_wrlock_full): Likewise. * nptl/pthread_rwlock_rdlock.c: (__pthread_rwlock_rdlock): Pass CLOCK_REALTIME to __pthread_rwlock_rdlock_full even though it won't be used because there's no timeout. * nptl/pthread_rwlock_wrlock.c (__pthread_rwlock_wrlock): Pass CLOCK_REALTIME to __pthread_rwlock_wrlock_full even though it won't be used because there is no timeout. * nptl/pthread_rwlock_timedrdlock.c (pthread_rwlock_timedrdlock): Pass CLOCK_REALTIME to __pthread_rwlock_rdlock_full since abstime uses that clock. * nptl/pthread_rwlock_timedwrlock.c (pthread_rwlock_timedwrlock): Pass CLOCK_REALTIME to __pthread_rwlock_wrlock_full since abstime uses that clock. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. * nptl/tst-abstime.c (th): Add pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock timeout tests to match the existing pthread_rwlock_timedrdloock and pthread_rwlock_timedwrlock tests. * nptl/tst-rwlock14.c (do_test): Likewise. * nptl/tst-rwlock6.c Invent verbose_printf macro, and use for ancillary output throughout. (tf): Accept thread_args structure so that rwlock, a clockid and function name can be passed to the thread. (do_test_clock): Rename from do_test. Accept clockid parameter to specify test clock. Use the magic clockid value of CLOCK_USE_TIMEDLOCK to indicate that pthread_rwlock_timedrdlock and pthread_rwlock_timedwrlock should be tested, otherwise pass the specified clockid to pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock. Use xpthread_create and xpthread_join. (do_test): Call do_test_clock to test each clockid in turn. * nptl/tst-rwlock7.c: Likewise. * nptl/tst-rwlock9.c (writer_thread, reader_thread): Accept thread_args structure so that the (now int) thread number, the clockid and the function name can be passed to the thread. (do_test_clock): Renamed from do_test. Pass the necessary thread_args when creating the reader and writer threads. Use xpthread_create and xpthread_join. (do_test): Call do_test_clock to test each clockid in turn. * manual/threads.texi: Add documentation for pthread_rwlock_clockrdlock and pthread_rwlock_clockwrclock. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Add POSIX-proposed pthread_cond_clockwaitMike Crowe2019-07-121-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add: int pthread_cond_clockwait (pthread_cond_t *cond, pthread_mutex_t *mutex, clockid_t clockid, const struct timespec *abstime) which behaves just like pthread_cond_timedwait except it always measures abstime against the supplied clockid. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC and returns EINVAL if any other clock is specified. Includes feedback from many others. This function was originally proposed[1] as pthread_cond_timedwaitonclock_np, but The Austin Group preferred the new name. * nptl/Makefile: Add tst-cond26 and tst-cond27 * nptl/Versions (GLIBC_2.30): Add pthread_cond_clockwait * sysdeps/nptl/pthread.h: Likewise * nptl/forward.c: Add __pthread_cond_clockwait * nptl/forward.c: Likewise * nptl/pthreadP.h: Likewise * sysdeps/nptl/pthread-functions.h: Likewise * nptl/pthread_cond_wait.c (__pthread_cond_wait_common): Add clockid parameter and comment describing why we don't need to check its value. Use that value when calling futex_abstimed_wait_cancelable rather than reading the clock from the flags. (__pthread_cond_wait): Pass unused clockid parameter. (__pthread_cond_timedwait): Read clock from flags and pass it to __pthread_cond_wait_common. (__pthread_cond_clockwait): Add new function with weak alias from pthread_cond_clockwait. * sysdeps/mach/hurd/i386/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist * (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): * Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. * nptl/tst-cond11.c (run_test): Support testing pthread_cond_clockwait too by using a special magic CLOCK_USE_ATTR_CLOCK value to determine whether to call pthread_cond_timedwait or pthread_cond_clockwait. (do_test): Pass CLOCK_USE_ATTR_CLOCK for existing tests, and add new tests using all combinations of CLOCK_MONOTONIC and CLOCK_REALTIME. * ntpl/tst-cond26.c: New test for passing unsupported and * invalid clocks to pthread_cond_clockwait. * nptl/tst-cond27.c: Add test similar to tst-cond5.c, but using struct timespec and pthread_cond_clockwait. * manual/threads.texi: Document pthread_cond_clockwait. The * comment was provided by Carlos O'Donell. [1] https://sourceware.org/ml/libc-alpha/2015-07/msg00193.html Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* nptl: Add POSIX-proposed sem_clockwaitMike Crowe2019-07-121-0/+10
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Add: int sem_clockwait (sem_t *sem, clockid_t clock, const struct timespec *abstime) which behaves just like sem_timedwait, but measures abstime against the specified clock. Currently supports CLOCK_REALTIME and CLOCK_MONOTONIC and sets errno == EINVAL if any other clock is specified. * nptl/sem_waitcommon.c (do_futex_wait, __new_sem_wait_slow): Add clockid parameters to indicate the clock which abstime should be measured against. * nptl/sem_timedwait.c (sem_timedwait), nptl/sem_wait.c (__new_sem_wait): Pass CLOCK_REALTIME as clockid to __new_sem_wait_slow. * nptl/sem_clockwait.c: New file to implement sem_clockwait based on sem_timedwait.c. * nptl/Makefile: Add sem_clockwait.c source file. Add CFLAGS for sem_clockwait.c to match those used for sem_timedwait.c. * sysdeps/pthread/semaphore.h: Add sem_clockwait. * nptl/Versions (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/aarch64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/alpha/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/arm/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/csky/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/hppa/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/i386/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/ia64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/coldfire/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/m68k/m680x0/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/microblaze/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/mips/mips64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/nios2/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/be/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/le/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/riscv/rv64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sh/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libpthread.abilist (GLIBC_2.30): Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libpthread.abilist (GLIBC_2.30): Likewise. * nptl/tst-sem17.c: Add new test for passing invalid clock to sem_clockwait. * nptl/tst-sem13.c, nptl/tst-sem5.c: Modify existing sem_timedwait tests to also test sem_clockwait. * manual/threads.texi: Document sem_clockwait. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Don't declare __malloc_check_init in <malloc.h> (bug 23352)Andreas Schwab2019-07-101-1/+0
| | | | The function was never part of the malloc API.
* io: Remove copy_file_range emulation [BZ #24744]Florian Weimer2019-06-281-5/+5
| | | | | | | | | | The kernel is evolving this interface (e.g., removal of the restriction on cross-device copies), and keeping up with that is difficult. Applications which need the function should run kernels which support the system call instead of relying on the imperfect glibc emulation. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Linux: Add getdents64 system callFlorian Weimer2019-06-071-0/+38
| | | | | | | | | | | No 32-bit system call wrapper is added because the interface is problematic because it cannot deal with 64-bit inode numbers and 64-bit directory hashes. A future commit will deprecate the undocumented getdirentries and getdirentries64 functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Small tcache improvementsWilco Dijkstra2019-05-171-1/+1
| | | | | | | | | | | | | | | | Change the tcache->counts[] entries to uint16_t - this removes the limit set by char and allows a larger tcache. Remove a few redundant asserts. bench-malloc-thread with 4 threads is ~15% faster on Cortex-A72. Reviewed-by: DJ Delorie <dj@redhat.com> * malloc/malloc.c (MAX_TCACHE_COUNT): Increase to UINT16_MAX. (tcache_put): Remove redundant assert. (tcache_get): Remove redundant asserts. (__libc_malloc): Check tcache count is not zero. * manual/tunables.texi (glibc.malloc.tcache_count): Update maximum.
* manual: Document O_DIRECTORYFlorian Weimer2019-05-171-0/+7
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