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* powerpc: Fix syscalls during early process initialization [BZ #22685]Tulio Magno Quites Machado Filho2018-01-194-4/+47
| | | | | | | | | | | | | | | | | | | | | | | | | The tunables framework needs to execute syscall early in process initialization, before the TCB is available for consumption. This behavior conflicts with powerpc{|64|64le}'s lock elision code, that checks the TCB before trying to abort transactions immediately before executing a syscall. This patch adds a powerpc-specific implementation of __access_noerrno that does not abort transactions before the executing syscall. Tested on powerpc{|64|64le}. [BZ #22685] * sysdeps/powerpc/powerpc32/sysdep.h (ABORT_TRANSACTION_IMPL): Renamed from ABORT_TRANSACTION. (ABORT_TRANSACTION): Redirect to ABORT_TRANSACTION_IMPL. * sysdeps/powerpc/powerpc64/sysdep.h (ABORT_TRANSACTION, ABORT_TRANSACTION_IMPL): Likewise. * sysdeps/unix/sysv/linux/powerpc/not-errno.h: New file. Reuse Linux code, but remove the code that aborts transactions. Signed-off-by: Tulio Magno Quites Machado Filho <tuliom@linux.vnet.ibm.com> Tested-by: Aurelien Jarno <aurelien@aurel32.net>
* generic if_ether.h: Fix buildSamuel Thibault2018-01-192-0/+5
| | | | * sysdeps/generic/netinet/if_ether.h: Include <stdint.h>.
* locales gu_IN, lo_LA: Fix obvious typos in dates.Rafal Luzynski2018-01-193-2/+9
| | | | | | | | | Reported-by: Robert Pluim <rpluim@gmail.com> * localedata/locales/gu_IN (LC_IDENTIFICATION): Fix an obvious typo in date: "2004-14-09" should be "2004-09-14". * localedata/locales/lo_LA: Fix an obvious typo in date in the header: "2003-15-09" should be "2003-09-15".
* Fix integer overflows in internal memalign and malloc functions [BZ #22343]Arjun Shankar2018-01-184-8/+286
| | | | | | | | | | | | | | | | | | | | | | | | When posix_memalign is called with an alignment less than MALLOC_ALIGNMENT and a requested size close to SIZE_MAX, it falls back to malloc code (because the alignment of a block returned by malloc is sufficient to satisfy the call). In this case, an integer overflow in _int_malloc leads to posix_memalign incorrectly returning successfully. Upon fixing this and writing a somewhat thorough regression test, it was discovered that when posix_memalign is called with an alignment larger than MALLOC_ALIGNMENT (so it uses _int_memalign instead) and a requested size close to SIZE_MAX, a different integer overflow in _int_memalign leads to posix_memalign incorrectly returning successfully. Both integer overflows affect other memory allocation functions that use _int_malloc (one affected malloc in x86) or _int_memalign as well. This commit fixes both integer overflows. In addition to this, it adds a regression test to guard against false successful allocations by the following memory allocation functions when called with too-large allocation sizes and, where relevant, various valid alignments: malloc, realloc, calloc, reallocarray, memalign, posix_memalign, aligned_alloc, valloc, and pvalloc.
* ChangeLog: Fix an entry for [BZ #22657]Rafal Luzynski2018-01-181-2/+1
| | | | | | | Remove myself, give the full credit to Egmont Koblinger. When committing someone else's changes, one should put the contributor's name in the change log entry.
* locales bho_NP, mai_IN, mai_NP: Fix an obvious typo in date.Rafal Luzynski2018-01-184-3/+10
| | | | | | | * localedata/locales/bho_NP (LC_IDENTIFICATION): Fix an obvious typo in date: "2017-24-07" should be "2017-07-24". * localedata/locales/mai_IN: Likewise. * localedata/locales/mai_NP: Likewise.
* Update translations from the Translation ProjectDmitry V. Levin2018-01-172-540/+545
| | | | * po/ru.po: Update translations.
* Fix backtrace for hppa (bug 22719).Joseph Myers2018-01-172-0/+6
| | | | | | | | | | | | | | | | | | | The only architecture in glibc that uses the generic debug/backtrace.c is hppa. The debug/tst-backtrace* tests fail for hppa, so in fact the generic debug/backtrace.c is not functional anywhere. Instead, the x86_64 version is a reasonably generic version that uses _Unwind_Backtrace from libgcc to backtrace using unwind info, and is used by several architectures. This patch adds hppa to the architectures using it (leaving open the possibility of a subsequent cleanup for 2.28 of moving the x86_64 version to debug/backtrace.c, and removing all the frame.h files that are now unused). Reported by Adhemerval in <https://sourceware.org/ml/libc-alpha/2018-01/msg00564.html> that this does fix the backtrace test failures for hppa. [BZ #22719] * sysdeps/hppa/backtrace.c: New file.
* x86-64: Properly align La_x86_64_retval to VEC_SIZE [BZ #22715]H.J. Lu2018-01-172-2/+16
| | | | | | | | | | | | | | | | | | | | | | | | _dl_runtime_profile calls _dl_call_pltexit, passing a pointer to La_x86_64_retval which is allocated on stack. The lrv_vector0 field in La_x86_64_retval must be aligned to size of vector register. When allocating stack space for La_x86_64_retval, we need to make sure that the address of La_x86_64_retval + RV_VECTOR0_OFFSET is aligned to VEC_SIZE. This patch checks the alignment of the lrv_vector0 field and pads the stack space if needed. Tested with x32 and x86-64 on SSE4, AVX and AVX512 machines. It fixed FAIL: elf/tst-audit10 FAIL: elf/tst-audit4 FAIL: elf/tst-audit5 FAIL: elf/tst-audit6 FAIL: elf/tst-audit7 on x32 AVX512 machine. [BZ #22715] * sysdeps/x86_64/dl-trampoline.h (_dl_runtime_profile): Properly align La_x86_64_retval to VEC_SIZE.
* Use LIBGCC_S_SO in x86_64 backtrace.Joseph Myers2018-01-162-1/+7
| | | | | | | | | | | | | | The x86_64 backtrace implementation is used as a generic implementation (unwinding via unwind info and _Unwind_Backtrace) by various other architectures. This patch makes it more generic by making it use LIBGCC_S_SO from gnu/lib-names.h instead of hardcoding the libgcc_s.so.1 name, so that it can also be used on hppa which uses libgcc_s.so.4. Tested for x86_64. * sysdeps/x86_64/backtrace.c: Include <gnu/lib-names.h>. (init): Use LIBGCC_S_SO not hardcoded "libgcc_s.so.1".
* nptl/tst-thread-exit-clobber: Run with any C++ compilerFlorian Weimer2018-01-162-2/+8
| | | | | We do not need thread_local support in the C++11 comiler, and the minimum GCC version for glibc has C++11 support (if it has C++ support).
* aarch64: Update bits/hwcap.h for Linux 4.15.Szabolcs Nagy2018-01-163-2/+16
| | | | | | | | | | | | Define new HWCAP bits and add their name to dl-procinfo.c following the linux definitions. Synchronizing with v4.15-rc8 version of linux, these are not expected to change before the 4.15 release. * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_SHA3): Define. (HWCAP_SM3, HWCAP_SM4, HWCAP_ASIMDDP, HWCAP_SHA512, HWCAP_SVE): Define. * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_dl_aarch64_cap_flags): Update. (_DL_HWCAP_COUNT): Update.
* aarch64: make HWCAP updates less error proneSzabolcs Nagy2018-01-163-7/+12
| | | | | | | | | | | Remove unused _DL_HWCAP_LAST definition and move _DL_HWCAP_COUNT where it is needed (dl-procinfo.h always includes dl-procinfo.c). * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.h (_DL_HWCAP_LAST): Remove. (_DL_HWCAP_COUNT): Move to ... * sysdeps/unix/sysv/linux/aarch64/dl-procinfo.c (_DL_HWCAP_COUNT): ... here.
* nptl/tst-minstack-throw: Compile in C++11 mode with GNU extensionsFlorian Weimer2018-01-162-0/+6
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* Add NT_ARM_SVE to elf.hAlan Hayward2018-01-152-0/+6
| | | | | | This definition is for AArch64 SVE registers in elf core dumps. * elf/elf.h (NT_ARM_SVE): Define.
* nptl: Add PTHREAD_MIN_STACK C++ throw test [BZ #22636]Florian Weimer2018-01-153-2/+100
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* Update build-many-glibcs.py binutils, mpfr, mpc versions.Joseph Myers2018-01-152-3/+9
| | | | | | * scripts/build-many-glibcs.py (Context.checkout): Default binutils version to 2.30 branch, MPFR version to 4.0.0 and MPC version to 1.1.0.
* Synchronize DF_1_* flags with binutils (Bug 22707)Carlos O'Donell2018-01-132-0/+8
| | | | | | | | | | This patch synchronizes DF_1_* flags with binutils and ensures that all DF_1_* flags defined in binutil's include/elf/common.h are also defined glibc's elf/elf.h. This is a user visible change since elf/elf.h is installed by default as /usr/include/elf.h. Signed-off-by: Carlos O'Donell <carlos@redhat.com>
* powerpc: Fix llround spurious inexact on 32-bit POWER4 [BZ #22697]Tulio Magno Quites Machado Filho2018-01-122-0/+11
| | | | | | | | | | This issue is similar to BZ #19235, where spurious exceptions are created from adding 0.5 then converting to an integer. The solution is based on Joseph's fix for BZ #19235. [BZ #22697] * sysdeps/powerpc/powerpc32/power4/fpu/s_llround.S (__llround): Do not add 0.5 to integer or out-of-range arguments.
* Update translations from the Translation ProjectDmitry V. Levin2018-01-129-4338/+4330
| | | | | | | | | | | * po/bg.po: Update translations. * po/cs.po: Likewise. * po/de.po: Likewise. * po/ko.po: Likewise. * po/pl.po: Likewise. * po/sv.po: Likewise. * po/uk.po: Likewise. * po/vi.po: Likewise.
* aarch64: fix static pie enabled libc when main is in a shared librarySzabolcs Nagy2018-01-122-2/+16
| | | | | | | | | | | | | | | | | In the static pie enabled libc, crt1.o uses the same position independent code as rcrt1.o and crt1.o is used instead of Scrt1.o when -no-pie executables are linked. When main is not defined in the executable, but in a shared library crt1.o is currently broken, it assumes main is local. (glibc has a test for this but i missed it in my previous testing.) To make both rcrt1.o and crt1.o happy with the same code, a wrapper is introduced around main: with this crt1.o works with extern main symbol while rcrt1.o does not depend on GOT relocations. (The change only affects static pie enabled libc. Further simplification of start.S is possible in the future by using the same approach for Scrt1.o too.) * aarch64/start.S (_start): Use __wrap_main. (__wrap_main): New local symbol.
* linux: make getcwd(3) fail if it cannot obtain an absolute path [BZ #22679]Dmitry V. Levin2018-01-125-5/+84
| | | | | | | | | | | | | | | | | | | | | | | | | Currently getcwd(3) can succeed without returning an absolute path because the underlying getcwd syscall, starting with linux commit v2.6.36-rc1~96^2~2, may succeed without returning an absolute path. This is a conformance issue because "The getcwd() function shall place an absolute pathname of the current working directory in the array pointed to by buf, and return buf". This is also a security issue because a non-absolute path returned by getcwd(3) causes a buffer underflow in realpath(3). Fix this by checking the path returned by getcwd syscall and falling back to generic_getcwd if the path is not absolute, effectively making getcwd(3) fail with ENOENT. The error code is chosen for consistency with the case when the current directory is unlinked. [BZ #22679] CVE-2018-1000001 * sysdeps/unix/sysv/linux/getcwd.c (__getcwd): Fall back to generic_getcwd if the path returned by getcwd syscall is not absolute. * io/tst-getcwd-abspath.c: New test. * io/Makefile (tests): Add tst-getcwd-abspath.
* malloc: Ensure that the consolidated fast chunk has a sane size.Istvan Kurucsai2018-01-122-0/+10
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* support: Preserve errno in write_message, TEST_VERIFY and other checksFlorian Weimer2018-01-125-0/+21
| | | | | These facilities could clobber errno, which makes it difficult to write certain checks because a specific order has to be used.
* Add missing reference to bug 20532Florian Weimer2018-01-121-0/+1
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* libnsl: Do not install libnsl.so, libnsl.a if NIS is disabled [BZ #22701]Florian Weimer2018-01-122-1/+16
| | | | | | This also skips building the .o files for libnsl.a. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* hu_HU locale: Avoid double space (bug 22657).Egmont Koblinger2018-01-122-2/+10
| | | | | | | | | | | | | | | | | | | | | | | The current date format prefixes one-digit days with a space, resulting in ugly two spaces: $ LC_ALL=hu_HU.UTF-8 date 2018. jan. 1., hétfő, 21:25:35 CET ^^ The official orthography rules doesn't contain an explicit rule about this (which already gives no sane reason for double space), and an implicit example of "1848. március 9." under bullet point 296 at http://helyesiras.mta.hu/helyesiras/default/akh12 contains a single space only. It's sure not convincing on an HTML page, but I confirm that the official book edition (e.g. https://www.libri.hu/en/konyv/a-magyar-helyesiras-szabalyai-32.html) also contains a single space there. [BZ #22657] * localedata/locales/hu_HU (d_t_fmt): Avoid a leading space before the day number which may produce a double space. (date_fmt): Likewise.
* Fix s390 linknamespace fallout of bug 22702 patch.Joseph Myers2018-01-122-1/+6
| | | | | | | | | | | | | | | My fix for bug 22702 introduced linknamespace test failures on s390x-linux-gnu and s390-linux-gnu because it made remainder call __feholdexcept, and the s390 __feholdexcept calls fegetenv, and remainder is in Unix98 and XPG4.2 but fegetenv isn't. This patch makes __feholdexcept call __fegetenv instead to avoid that namespace issue. Tested (compilation) with build-many-glibcs.py for s390x-linux-gnu, where it resolves the test failures. * sysdeps/s390/fpu/feholdexcpt.c (__feholdexcept): Call __fegetenv instead of fegetenv.
* Make default libc_feholdsetround_noex_ctx use __feholdexcept (bug 22702).Joseph Myers2018-01-112-4/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For soft-float powerpc, the math/test-nearbyint-except-2 test fails because nearbyintl traps when traps on "inexact" are enabled on entry (and an "inexact" exception is generated internally, though cleared for the final return). The problem is the default implementation of libc_feholdsetround_noex_ctx, which does not disable exception traps. There is some ambiguity about whether the *noex* interfaces are required to do so or only permitted to do so. But given that we support fe* interfaces to enable and disable traps (on architectures with that functionality), functions that must not raise an exception (must not leave the flag set on exit if not set on entry) should also not trap on it when traps on that exception are enabled. So it is appropriate to define these interfaces to have the feholdexcept effect of disabling exception traps; this patch updates the default implementation and comments accordingly. At least some architecture versions already disable traps; there are few uses of the *noex* interfaces at all, and while it's possible there are bugs on any architecture versions failing to disable traps that appear in the exp2 and remainder implementations, there are currently no tests, other than this one for nearbyintl (where only the ldbl-128ibm implementation uses SET_RESTORE_ROUND_NOEX), that would fail as a result of such a bug. (Hard-float powerpc does disable traps here, hence the nearbyintl failure not appearing there.) Tested for powerpc (soft-float). This brings that configuration to clean math/ test results, provided you build with GCC 8 to get the fix for GCC bug 64811. [BZ #22702] * sysdeps/generic/math_private.h (libc_feresetround_noex): Update comment to say exceptions are discarded. (libc_feholdsetround_noex_ctx): Use __feholdexcept instead of __fegetenv. (SET_RESTORE_ROUND_NOEX): Update comment to say non-stop mode must be enabled.
* csu: Update __libgcc_s_init commentFlorian Weimer2018-01-112-2/+11
| | | | Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* nptl: Add tst-minstack-cancel, tst-minstack-exit [BZ #22636]Florian Weimer2018-01-114-1/+101
| | | | | | | | | | | | | I verified that without the guard accounting change in commit 630f4cc3aa019ede55976ea561f1a7af2f068639 (Fix stack guard size accounting) and RTLD_NOW for libgcc_s introduced by commit f993b8754080ac7572b692870e926d8b493db16c (nptl: Open libgcc.so with RTLD_NOW during pthread_cancel), the tst-minstack-cancel test fails on an AVX-512F machine. tst-minstack-exit still passes, and either of the mentioned commit by itself frees sufficient stack space to make tst-minstack-cancel pass, too. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* Fix ldbl-128ibm log1pl (-qNaN) spurious "invalid" exception (bug 22693).Joseph Myers2018-01-102-2/+8
| | | | | | | | | | | | | | | The ldbl-128ibm implementation of log1pl does ordered comparisons on a negative qNaN argument, so resulting in spurious "invalid" exceptions (for soft-float powerpc; hard-float only avoids this because of GCC bug 58684 meaning ordered comparison instructions never get generated). This patch fixes this by arranging for the test for NaN or infinity arguments to handle negative arguments as well. Tested for powerpc (soft float). [BZ #22693] * sysdeps/ieee754/ldbl-128ibm/s_log1pl.c (__log1pl): Handle negative arguments in test for NaN or infinity argument.
* Regenerate libc.potDmitry V. Levin2018-01-102-530/+534
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* nptl: Open libgcc.so with RTLD_NOW during pthread_cancel [BZ #22636]Florian Weimer2018-01-102-1/+7
| | | | | | | | | Disabling lazy binding reduces stack usage during unwinding. Note that RTLD_NOW only makes a difference if libgcc.so has not already been loaded, so this is only a partial fix. Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* hurd: Implement faccessat without AT_EACCESS flagSamuel Thibault2018-01-107-194/+218
| | | | | | | | | | | | | | | | | | | | | | * hurd/hurd/fd.h: Include <fcntl.h> (__hurd_at_flags): New function. * hurd/lookup-at.c (__file_name_lookup_at): Replace flag computation with call to __hurd_at_flags. * include/unistd.h (__faccessat, __faccessat_noerrno): Add declaration. * sysdeps/mach/hurd/access.c (access_common): Move implementation to __faccessat (hurd_fail_seterrno, hurd_fail_noerrno): Move to sysdeps/mach/hurd/faccessat.c. (__access_noerrno): Use __faccessat_common instead of access_common. (__access): Likewise. * sysdeps/mach/hurd/euidaccess.c (__euidaccess): Replace implementation with a call to __faccessat. * sysdeps/mach/hurd/faccessat.c (faccessat): Rename into... (__faccessat_common): ... this. Move implementation of __access into it when AT_FLAGS does not contain AT_EACCESS. Make it call __hurd_at_flags, add reauthenticate_cwdir_at helper to implement AT mechanism. (__faccessat_noerrno): New function, just calls __faccessat_common. (__faccessat): New function, just calls __faccessat_common. (faccessat): Define weak alias.
* Fix powerpc-nofpu fmaxmagl, fminmagl spurious "invalid" exception (bug 22691).Joseph Myers2018-01-102-0/+7
| | | | | | | | | | | | | | For soft-float powerpc, fmaxmagl and fminmagl generate spurious "invalid" exceptions for quiet NaN arguments. This is another case of the problems with fabsl inline expansion via comparisons, and so is fixed by building those functions with -fno-builtin-fabsl. Tested for powerpc (soft-float). [BZ #22691] * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-s_fmaxmagl.c): New variable. [$(subdir) = math] (CFLAGS-s_fminmagl.c: Likewise.
* Fix ldbl-128ibm lrintl, lroundl missing "invalid" exceptions (bug 22690).Joseph Myers2018-01-103-12/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ldbl-128ibm implementations of lrintl and lroundl are missing "invalid" exceptions for certain overflow cases when compiled with GCC 8. The cause of this is after-the-fact integer overflow checks that fail when the compiler optimizes on the basis of integer overflow being undefined; GCC 8 must be able to detect new cases of undefinedness here. Failure: lrint (-0x80000001p0): Exception "Invalid operation" not set Failure: lrint_downward (-0x80000001p0): Exception "Invalid operation" not set Failure: lrint_towardzero (-0x80000001p0): Exception "Invalid operation" not set Failure: lrint_upward (-0x80000001p0): Exception "Invalid operation" not set Failure: lround (-0x80000001p0): Exception "Invalid operation" not set Failure: lround_downward (-0x80000001p0): Exception "Invalid operation" not set Failure: lround_towardzero (-0x80000001p0): Exception "Invalid operation" not set Failure: lround_upward (-0x80000001p0): Exception "Invalid operation" not set (Tested that these failures occur before the patch for powerpc soft-float, but the issue applies in principle for hard-float as well, whether or not the particular optimizations in fact occur there at present.) This patch fixes the bug by ensuring the additions / subtractions in question cast arguments to unsigned long int, or use 1UL as a constant argument, so that the arithmetic occurs in an unsigned type with the result then converted back to a signed type. Tested for powerpc (soft-float). [BZ #22690] * sysdeps/ieee754/ldbl-128ibm/s_lrintl.c (__lrintl): Use unsigned long int for arguments of possibly overflowing addition or subtraction. * sysdeps/ieee754/ldbl-128ibm/s_lroundl.c (__lroundl): Likewise.
* Fix powerpc-nofpu remainderl wrong sign of zero result (bug 22688).Joseph Myers2018-01-092-0/+5
| | | | | | | | | | | | | For soft-float powerpc, the remainderl function produces zero results with the wrong sign for various inputs. This is another instance of the problem with incorrect built-in fabsl expansion, so is fixed by this patch using -fno-builtin-fabsl for this function. Tested for powerpc (soft-float). [BZ #22688] * sysdeps/powerpc/nofpu/Makefile [$(subdir) = math] (CFLAGS-e_remainderl.c): New variable.
* Fix powerpc-nofpu complex long double functions spurious "invalid" exception ↵Joseph Myers2018-01-092-6/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (bug 22687). For soft-float powerpc, various _Complex long double functions generate spurious "invalid" exceptions, even with a compiler with GCC bug 64811 fixed. The problem is GCC's built-in fabsl expansion. Various files are already built with -fno-builtin-fabsl because in this case (IBM long double, for soft-float or e500v1) a fallback fabsl expansion based on comparisons is used, which can produce the wrong sign of a zero result. Those comparisons can also produce spurious exceptions for NaN arguments. Furthermore, __builtin_fpclassify implemently uses __builtin_fabsl, and is unaffected by -fno-builtin-fabsl, and the fpclassify macro uses __builtin_fpclassify in the absence of -fsignaling-nans. Thus, this patch arranges for the problem files using fpclassify to be built with -fsignaling-nans in this case, to avoid spurious exceptions from fpclassify. Tested for powerpc (soft-float). [BZ #22687] * sysdeps/powerpc/nofpu/Makefile (CFLAGS-s_cacosl.c): New variable. (CFLAGS-s_cacoshl.c): Likewise. (CFLAGS-s_casinhl.c): Likewise. (CFLAGS-s_catanl.c): Likewise. (CFLAGS-s_catanhl.c): Likewise. (CFLAGS-s_cexpl.c): Likewise. (CFLAGS-s_ccoshl.c): Add -fsignaling-nans. (CFLAGS-s_csinhl.c): Likewise. (CFLAGS-s_clogl.c): Likewise. (CFLAGS-s_clog10l.c): Likewise. (CFLAGS-s_csinl.c): Likewise. (CFLAGS-s_csqrtl.c): Likewise.
* hurd: Use the new file_exec_paths RPCSamuel Thibault2018-01-097-32/+167
| | | | | | | | | | | | | | | | | | | | | | From: Emilio Pozuelo Monfort <pochu27@gmail.com> From: Svante Signell <svante.signell@gmail.com> Pass the file paths of executable to the exec server, both relative and absolute, which exec needs to properly execute and avertise #!-scripts. Previously, the exec server tried to guess the name from argv[0] but argv[0] only contains the executable name by convention. * hurd/hurdexec.c (_hurd_exec): Deprecate function. (_hurd_exec_paths): New function. * hurd/hurd.h (_hurd_exec): Deprecate function. (_hurd_exec_paths): Declare function. * hurd/Versions: Export _hurd_exec_paths. * sysdeps/mach/hurd/execve.c: Include <stdlib.h> and <stdio.h> (__execve): Use __getcwd to build absolute path, and use _hurd_exec_paths instead of _hurd_exec. * sysdeps/mach/hurd/spawni.c: Likewise. * sysdeps/mach/hurd/fexecve.c: Use _hurd_exec_paths instead of _hurd_exec.
* tst-ttyname: skip the test when /dev/ptmx is not availableDmitry V. Levin2018-01-082-1/+13
| | | | | * sysdeps/unix/sysv/linux/tst-ttyname.c (do_in_chroot_1): Skip the test instead of failing in case of ENOENT returned by posix_openpt.
* resolv: Support binary labels in test frameworkFlorian Weimer2018-01-084-133/+302
| | | | | | | | | | The old implementation based on hsearch_r used an ad-hoc C string encoding and produced an incorrect format on the wire for domain names which contained bytes which needed escaping when printed. This commit switches to ns_name_pton for the wire format conversion (now that we have separate tests for it) and uses a tsearch tree with a suitable comparison function to locate compression targets.
* support: Increase usability of TEST_COMPAREFlorian Weimer2018-01-084-32/+49
| | | | | | | | | | | | | | | | | | | | | The previous implementation of the TEST_COMPARE macro would fail to compile code like this: int ret = res_send (query, sizeof (query), buf, sizeof (buf)); TEST_COMPARE (ret, sizeof (query) + 2 /* Compression reference. */ + 2 + 2 + 4 + 2 /* Type, class, TTL, RDATA length. */ + 1 /* Pascal-style string length. */ + strlen (expected_name)); This resulted in a failed static assertion, "integer conversions may alter sign of operands". A user of the TEST_COMPARE would have to add a cast to fix this. This patch reverts to the original proposed solution of a run-time check, making TEST_COMPARE usable for comparisons of numbers with types with different signedness in more contexts.
* [BZ #22637] Fix stack guard size accountingSzabolcs Nagy2018-01-085-8/+21
| | | | | | | | | | | | | | | | | | | | | Previously if user requested S stack and G guard when creating a thread, the total mapping was S and the actual available stack was S - G - static_tls, which is not what the user requested. This patch fixes the guard size accounting by pretending the user requested S+G stack. This way all later logic works out except when reporting the user requested stack size (pthread_getattr_np) or when computing the minimal stack size (__pthread_get_minstack). Normally this will increase thread stack allocations by one page. TLS accounting is not affected, that will require a separate fix. [BZ #22637] * nptl/descr.h (stackblock, stackblock_size): Update comments. * nptl/allocatestack.c (allocate_stack): Add guardsize to stacksize. * nptl/nptl-init.c (__pthread_get_minstack): Remove guardsize from stacksize. * nptl/pthread_getattr_np.c (pthread_getattr_np): Likewise.
* x86-64: Add sincosf with vector FMAH.J. Lu2018-01-087-4/+288
| | | | | | | | | | | | | | | | | | | | | | | Since the x86-64 assembly version of sincosf is higly optimized with vector instructions, there isn't much room for improvement. However s_sincosf.c written in C with vector math and intrinsics can be optimized by GCC with FMA. On Skylake, bench-sincosf reports performance improvement: Assembly FMA improvement max 104.042 101.008 3% min 9.426 8.586 10% mean 20.6209 18.2238 13% * sysdeps/x86_64/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_sincosf-sse2 and s_sincosf-fma. (CFLAGS-s_sincosf-fma.c): New. * sysdeps/x86_64/fpu/multiarch/s_sincosf-fma.c: New file. * sysdeps/x86_64/fpu/multiarch/s_sincosf-sse2.S: Likewise. * sysdeps/x86_64/fpu/multiarch/s_sincosf.c: Likewise. * sysdeps/x86_64/fpu/s_sincosf.S: Don't add alias if __sincosf is defined.
* nptl: Add test for callee-saved register restore in pthread_exitFlorian Weimer2018-01-083-2/+257
| | | | | | | | | | | | | | | | GCC PR 83641 results in a miscompilation of libpthread, which causes pthread_exit not to restore callee-saved registers before running destructors for objects on the stack. This test detects this situation: info: unsigned int, direct pthread_exit call tst-thread-exit-clobber.cc:80: numeric comparison failure left: 4148288912 (0xf741dd90); from: value right: 1600833940 (0x5f6ac994); from: magic_values.v2 info: double, direct pthread_exit call info: unsigned int, indirect pthread_exit call info: double, indirect pthread_exit call error: 1 test failures
* support: Define support_static_assert for use with C and C++Florian Weimer2018-01-082-9/+21
| | | | And update TEST_COMPARE to use it, to make it usable from C++.
* getrlimit64: fix for 32-bit configurations with default version >= 2.2Aurelien Jarno2018-01-072-0/+10
| | | | | | | | | | | | | | Commit 24731685 ("prlimit: Translate old_rlimit from RLIM64_INFINITY to RLIM_INFINITY") broken the getrlimit64 for 32-bit configurations which do no need the 2GiB limited compat getrlimit (default version >= 2.2). This patch fixes that by restoring the weak alias in that case. Changelog: * sysdeps/unix/sysv/linux/getrlimit64 (getrlimit64) [!__RLIM_T_MATCHES_RLIM64_T] [!SHLIB_COMPAT (libc, GLIBC_2_1, GLIBC_2_2)]: Define as weak alias of __getrlimit64. Add libc_hidden_weak.
* hurd: Fix pwritev*Samuel Thibault2018-01-072-1/+2
| | | | | | | | | This follows c45d78aac ('posix: Fix generic p{read,write}v buffer allocation (BZ#22457)'), which made pwritev to use __mmap instead of __posix_memalign, but didn't pass PROT_READ to it, while the pwrite() call does need to read the data we have just copied over. * sysdeps/posix/pwritev_common.c: Add PROT_READ to __mmap prot.
* Avoid race conditions when rebuilding librt.soPalmer Dabbelt2018-01-062-0/+6
| | | | | | | | | | | | `make check' sometimes triggers a rebuild of librt.so using nptl/Makefile, which ignores librt's dependence on libpthread. This causes the build to blow up when we attempt to run the test suite on RISC-V. 2018-01-06 Palmer Dabbelt <palmer@sifive.com> * nptl/Makefile (/librt.so): Always depend on "$(shared-thread-library)".
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