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2017-05-08Remove __ASSUME_GETCPU_SYSCALL.Joseph Myers
This patch removes the definition of __ASSUME_GETCPU_SYSCALL. In fact this macro is unused, probably since: commit dd26c44403582fdf10d663170f947dfe4b3207a0 Author: Adhemerval Zanella <adhemerval.zanella@linaro.com> Date: Wed Apr 22 14:21:39 2015 -0300 Consolidate sched_getcpu so it could have been removed even without the move to 3.2 as minimum kernel version on x86_64. Tested for x86_64. * sysdeps/unix/sysv/linux/x86_64/kernel-features.h (__ASSUME_GETCPU_SYSCALL): Remove macro.
2017-05-08Remove <sys/ultrasound.h>Florian Weimer
This header was once used for constants related to the Gravis Ultrasound sound card.
2017-05-08Require Linux kernel 3.2 or later on x86 / x86_64.Joseph Myers
As per the recent discussion, this patch implements a requirement for Linux 3.2 or later for x86 and x86_64. This is only the initial change to increase the configured minimum; it's expected that followup patches would deal with associated removal of conditionals that are no longer needed. If we remove the start-up test on the kernel version, of course the NEWS and README text should then be revised (to reflect that this version is just one such that glibc does not intend to include compatibility code for any older kernel version, rather than older kernels necessarily failing to work or glibc necessarily having compatibility code for newer interfaces). The followups would be able to assume presence of getcpu (x86_64), recvmmsg (not always through its own syscall, sometimes only through socketcall), sendmmsg (likewise), /proc/$pid/task/$tid/comm, f_flags from statfs, prlimit64. Tested for x86_64 and x86. * sysdeps/unix/sysv/linux/i386/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/i386/configure: Regenerated. * sysdeps/unix/sysv/linux/x86_64/64/configure.ac (arch_minimum_kernel): Remove. * sysdeps/unix/sysv/linux/x86_64/64/configure: Regenerated. * README: Update statement about Linux kernel requirements.
2017-05-04Fix network headers stdint.h namespace (bug 21455).Joseph Myers
conform/ namespace tests of arpa/inet.h, netdb.h and netinet/in.h fail for UNIX98 and XPG42 because of inclusion of stdint.h, which defines macros not permitted in those headers for those standards. UNIX98 allows them to include inttypes.h, but (predating C99) has restricted inttypes.h contents (not yet tested in the conform/ tests) not including those macros; XPG4.2 has no such permission and no inttypes.h / stdint.h at all. This patch rearranges the headers to avoid this issue. intN_t definitions move to bits/stdint-intn.h, and uintN_t definitions to bits/stdint-uintn.h. (These are not bits/types/ headers because they each define four types. They are separate rather than just a single header because sys/types.h defines intN_t but u_intN_t rather than uintN_t - and while sys/types.h could define uintN_t because of the POSIX reservation of *_t, existing practice there is largely to condition types on appropriate feature test macros, and indeed there is at least one open bug report (14553) about a type that's not so-conditioned, so maybe types there should actually have conditions added where appropriate.) The affected network headers are then made to include bits/stdint-uintn.h instead of stdint.h. This allows six XFAILs to be removed. This doesn't do anything about inttypes.h defining more than it should for UNIX98, but we don't have conformtest expectations for that case at present (and my inclination is that a fix for that should be as local as possible - affecting only inttypes.h, not stdint.h, only for the case of __USE_UNIX98 && !__USE_ISOC99). Tested for x86_64. [BZ #21455] * bits/stdint-intn.h: New file. * bits/stdint-uintn.h: Likewise. * stdlib/Makefile (headers): Add bits/stdint-intn.h and bits/stdint-uintn.h. * inet/netinet/in.h: Include <bits/stdint-uintn.h> instead of <stdint.h>. * posix/sys/types.h: Include <bits/stdint-intn.h>. (__int8_t_defined): Do not define here. (int8_t): Likewise. (int16_t): Likewise. (int32_t): Likewise. (int64_t): Likewise. [__GNUC_PREREQ (2, 7)] (__intN_t): Likewise. * resolv/netdb.h: Include <bits/stdint-uintn.h> instead of <stdint.h>. * include/netdb.h [_ISOMAC]: Do not include <stdint.h>. * sysdeps/generic/stdint.h: Include <bits/stdint-intn.h> and <bits/stdint-uintn.h>. (int8_t): Do not define here. (int16_t): Likewise. (int32_t): Likewise. (int64_t): Likewise. (uint8_t): Likewise. (uint16_t): Likewise. (uint32_t): Likewise. (uint64_t): Likewise. * conform/Makefile (test-xfail-XPG42/arpa/inet.h/conform): Remove variable. (test-xfail-XPG42/netdb.h/conform): Likewise. (test-xfail-XPG42/netinet/in.h/conform): Likewise. (test-xfail-UNIX98/arpa/inet.h/conform): Likewise. (test-xfail-UNIX98/netdb.h/conform): Likewise. (test-xfail-UNIX98/netinet/in.h/conform): Likewise.
2017-05-04ldbl-128: Use mathx_hidden_def inplace of hidden_defPaul E. Murphy
This provides a extra macro expansion before invoking the hidden_def macro. This is necessary to build the ldbl-128 files as float128 correctly. * sysdeps/generic/math_private.h: (mathx_hidden_def): New macro. * sysdeps/ieee754/ldbl-128/s_finitel.c: Replace hidden_def with the above. * sysdeps/ieee754/ldbl-128/s_isinfl.c: Likewise. * sysdeps/ieee754/ldbl-128/s_isnanl.c: Likewise.
2017-05-04Use __glibc_reserved convention in mcontext, sigcontext (bug 21457).Joseph Myers
This patch implements the most straightforward part of fixing namespace issues for sys/ucontext.h and related headers: where fields in sys/ucontext.h or bits/sigcontext.h are named "reserved", "padding" or similar, they are renamed to use the __glibc_reserved* naming convention. It does not change fields with a leading underscore, or even those with a prefix such as uc_ or sc_. It only fixes a small part of bug 21457, so no XFAILs are removed. Tested for x86_64 and x86, and with build-many-glibcs.py. [BZ #21457] * sysdeps/unix/sysv/linux/mips/sys/ucontext.h [_MIPS_SIM != _ABIO32] (mcontext_t): Rename field reserved to __glibc_reserved1. * sysdeps/unix/sysv/linux/x86/bits/sigcontext.h (struct _fpx_sw_bytes): Rename field padding to __glibc_reserved1. (struct _fpxreg): Likewise. [!__x86_64__] (struct _fpstate): Rename field reserved to __glibc_reserved1. Rename field padding to __glibc_reserved2. [__x86_64__] (struct _fpstate): Rename field padding to __glibc_reserved1. (struct _xsave_hdr): Rename field reserved1 to __glibc_reserved1. Rename field reserved2 to __glibc_reserved2. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h [__x86_64__] (struct _libc_fpxreg): Rename field padding to __glibc_reserved1. [__x86_64__] (struct _libc_fpstate): Rename field padding to __glibc_reserved1.
2017-05-04powerpc: Fix strncat ifunc selectionRajalakshmi Srinivasaraghavan
Correct hwcap usage in strncat introduced by commit 249dcdb71b79e4c488a46c9027e0014c0bc27044. Tested on power7 and power8 systems
2017-05-03x86: Set dl_platform and dl_hwcap from CPU features [BZ #21391]H.J. Lu
dl_platform and dl_hwcap are set from AT_PLATFORM and AT_HWCAP very early during startup. They are used by dynamic linker to determine platform and build an array of hardware capability names, which are added to search path when loading shared object. dl_platform and dl_hwcap are unused on x86-64. On i386, i386, i486, i586 and i686 platforms were supported and only SSE2 capability was used. On x86, usage of AT_PLATFORM and AT_HWCAP to determine platform and processor capabilities is obsolete since all information is available in dl_x86_cpu_features. This patch sets dl_platform and dl_hwcap from dl_x86_cpu_features in dynamic linker. On i386, the available plaforms are changed to i586 and i686 since i386 has been deprecated. On x86-64, the available plaforms are haswell, which is for Haswell class processors with BMI1, BMI2, LZCNT, MOVBE, POPCNT, AVX2 and FMA, and xeon_phi, which is for Xeon Phi class processors with AVX512F, AVX512CD, AVX512ER and AVX512PF. A capability, avx512_1, is also added to x86-64 for AVX512 ISAs: AVX512F, AVX512CD, AVX512BW, AVX512DQ and AVX512VL. [BZ #21391] * sysdeps/i386/dl-machine.h (dl_platform_init) [IS_IN (rtld)]: Only call init_cpu_features. [!IS_IN (rtld)]: Only set GLRO(dl_platform) to NULL if needed. * sysdeps/x86_64/dl-machine.h (dl_platform_init): Likewise. * sysdeps/i386/dl-procinfo.h: Removed. * sysdeps/unix/sysv/linux/i386/dl-procinfo.h: Don't include <sysdeps/i386/dl-procinfo.h> nor <ldsodefs.h>. Include <sysdeps/x86/dl-procinfo.h>. (_dl_procinfo): Replace _DL_HWCAP_COUNT with 32. * sysdeps/unix/sysv/linux/x86_64/dl-procinfo.h [!IS_IN (ldconfig)]: Include <sysdeps/x86/dl-procinfo.h> instead of <sysdeps/generic/dl-procinfo.h>. * sysdeps/x86/cpu-features.c: Include <dl-hwcap.h>. (init_cpu_features): Set dl_platform, dl_hwcap and dl_hwcap_mask. * sysdeps/x86/cpu-features.h (bit_cpu_LZCNT): New. (bit_cpu_MOVBE): Likewise. (bit_cpu_BMI1): Likewise. (bit_cpu_BMI2): Likewise. (index_cpu_BMI1): Likewise. (index_cpu_BMI2): Likewise. (index_cpu_LZCNT): Likewise. (index_cpu_MOVBE): Likewise. (index_cpu_POPCNT): Likewise. (reg_BMI1): Likewise. (reg_BMI2): Likewise. (reg_LZCNT): Likewise. (reg_MOVBE): Likewise. (reg_POPCNT): Likewise. * sysdeps/x86/dl-hwcap.h: New file. * sysdeps/x86/dl-procinfo.h: Likewise. * sysdeps/x86/dl-procinfo.c (_dl_x86_hwcap_flags): New. (_dl_x86_platforms): Likewise.
2017-05-03Consolidate Linux epoll_wait syscallAdhemerval Zanella
This patch consolidates the epoll_wait Linux syscall generation on sysdeps/unix/sysv/linux/epoll_wait.c. The implementation tries to use __NR_epoll_wait if defined, otherwise calls epoll_pwait. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/epoll_wait.c: New file. * sysdeps/unix/sysv/linux/generic/epoll_wait.c: Remove file. * sysdeps/unix/sysv/linux/syscalls.list: Remove epoll_wait from auto-generation list.
2017-05-03Consolidate Linux select implementationAdhemerval Zanella
This patch consolidates the select Linux syscall implementation on sysdeps/unix/sysv/linux/select.c. The changes are: 1. Remove select from auto-generation syscalls.list on the architecture that uses __NR_select. 2. Remove generic implementation add a default one that handle all current cases (with the expection of alpha) The new default implementation will either use __NR_select if available of fallback to __NR_pselect6 otherwise. 3. Add a alpha outlier implementation which requires old compatibility symbols. Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, arch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/alpha/Makefile (sysdep_routines): Add osf_select. * sysdeps/unix/sysv/linux/alpha/select.c: New file. * sysdeps/unix/sysv/linux/alpha/syscalls.list: Remove select and osf_select from auto-generation list. * sysdeps/unix/sysv/linux/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/generic/select.c: Remove file. * sysdeps/unix/sysv/linux/select.c: New file.
2017-05-03Consolidate Linux poll implementationAdhemerval Zanella
This patch consolidates the poll Linux syscall implementation on sysdeps/unix/sysv/linux/poll.c. It basically removes poll from auto-generation list and add a default implementation that either call __NR_poll directly (if the kernel headers defines it) or ppoll adjusting the timeout argument (as the generic implementation). Checked on i686-linux-gnu, x86_64-linux-gnu, x86_64-linux-gnux32, aarch64-linux-gnu, arm-linux-gnueabihf, and powerpc64le-linux-gnu. * sysdeps/unix/sysv/linux/generic/poll.c: Remove file. * sysdeps/unix/sysv/linux/poll.c: New file. * sysdeps/unix/sysv/linux/syscalls.list: Remove poll from auto-generation list.
2017-05-03Add HWCAP_ASIMDRDM from Linux 4.11 to AArch64 bits/hwcap.h.Joseph Myers
This patch adds the HWCAP_ASIMDRDM macro from Linux 4.11 to the AArch64 bits/hwcap.h. Tested (compilation only) with build-many-glibcs.py. * sysdeps/unix/sysv/linux/aarch64/bits/hwcap.h (HWCAP_ASIMDRDM): New macro.
2017-05-02sparc: handle R_SPARC_DISP64 and R_SPARC_REGISTER relocsVladimir Mezentsev
The Studio compiler generates relocation types which are not supported in glibc. Handle these relocs. Tested in sparc64-linux-gnu. No regressions. BZ #21179] * sysdeps/sparc/sparc64/dl-machine.h: Handle R_SPARC_DISP64 and R_SPARC_REGISTER relocations.
2017-05-02posix: Fix internal p{read,write} plt usageAdhemerval Zanella
This patch adds internal alias for __pread, __pread64, and __pwrite following the already in place one for __pwrite64. This is not used in any implementation but on microblaze on preadv/pwritev fallback (since it does not define __ASSUME_PREADV). In fact it was signaled by commit c35db50ff5 which update the expected localptl.data for the architecture based on resulted value. This patch updates the plt for microblaze now that p{read,write}{64} are correctly routed to use internal alias. Checked on x86_64-linux-gnu and a build for all supported architectures (no all variants although). * include/unistd.h (__pread): Add libc_hidden_proto. (__pread64): Likewise. (__pwrite): Likewise. * sysdeps/unix/sysv/linux/microblaze/localplt.data [libc.so] (__pread64): Remove. * sysdeps/unix/sysv/linux/pread.c (__pread64): Add libc_hidden_weak. * sysdeps/unix/sysv/linux/pread64.c (__pread64): Likewise. * sysdeps/unix/sysv/linux/pwrite.c (__pwrite): Likewise.
2017-05-02powerpc: Update powerpc-fpu libm-test-ulpsTulio Magno Quites Machado Filho
* sysdeps/powerpc/fpu/libm-test-ulps: Update.
2017-05-01Add TCP_FASTOPEN_CONNECT from Linux 4.11 to netinet/tcp.h.Joseph Myers
This patch adds the TCP_FASTOPEN_CONNECT macro from Linux 4.11 to sysdeps/gnu/netinet/tcp.h. Tested for x86-64. * sysdeps/gnu/netinet/tcp.h (TCP_FASTOPEN_CONNECT): New macro.
2017-05-01Add PF_SMC, AF_SMC from Linux 4.11 to bits/socket.h.Joseph Myers
This patch adds the PF_SMC / AF_SMC macros from Linux 4.11 to sysdeps/unix/sysv/linux/bits/socket.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/socket.h (PF_SMC): New macro. (PF_MAX): Set to 44. (AF_SMC): New macro.
2017-04-28powerpc: Fix logbl on power7 [BZ# 21280]Tulio Magno Quites Machado Filho
1. Fix the results for negative subnormals by ignoring the signal when normalizing the value. 2. Fix the output when the high part is a power of 2 and the low part is a nonzero number with opposite sign. This fix is based on commit 380bd0fd2418f8988217de950f8b8ff18af0cb2b. After applying this patch, logbl() tests pass cleanly on POWER >= 7. Tested on powerpc, powerpc64 and powerpc64le [BZ #21280] * sysdeps/powerpc/power7/fpu/s_logbl.c (__logbl): Ignore the signal of subnormals and adjust the exponent of power of 2 down when low part has opposite sign.
2017-04-28powerpc64le: Create divergent sysdep directory for powerpc64le.Paul E. Murphy
float128 on powerpc64le requires the addition of the ieee754/float128 sysdep, whereas powerpc64 doesn't. This requires creating a bunch of submachine and cpu directories and Implies files which just point towards their powerpc64 equivalent. Tested on P7, P8, and generic powerpc64le targets with and without multiarch. * sysdeps/powerpc/powerpc64le/Implies: New file. * sysdeps/powerpc/powerpc64le/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power7/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power8/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/multiarch/Implies: New file. * sysdeps/powerpc/powerpc64le/power9/multiarch/Implies: New file. * sysdeps/powerpc/preconfigure: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/Implies: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/fpu/Implies: New file.
2017-04-26Add earlyclobber to sqrtt/sqrtf insns.Uros Bizjak
When using software completions, we have to prevent assembler to match input and output operands of sqrtt/sqrtf insn. Add earlyclobber to output operand to avoid unwanted operand matching. 2017-04-14 Uros Bizjak <ubizjak@gmail.com> * sysdeps/alpha/fpu/math_private.h (__ieee754_sqrt): Add earlyclobber to output operand of sqrt insn. (__ieee754_sqrtf): Ditto.
2017-04-25Fix sys/socket.h namespace issues from sys/uio.h inclusion (bug 21426).Joseph Myers
sys/socket.h includes sys/uio.h to get the definition of the iovec structure. POSIX allows sys/socket.h to make all sys/uio.h symbols visible. However, all of sys/uio.h is XSI-shaded, so for non-XSI POSIX this results in conformtest failures (for sys/socket.h and other headers that include it): Namespace violation: "UIO_MAXIOV" Namespace violation: "readv" Namespace violation: "writev" Now, there is some ambiguity in POSIX about what namespace reservations apply in this case - see http://austingroupbugs.net/view.php?id=1127 - but glibc convention would still avoid declaring readv and writev, for example, for feature test macros that don't include them (if only headers from the relevant standard are included), even if such declarations are permitted, so there is a bug here according to glibc conventions. This patch moves the struct iovec definition to a new bits/types/struct_iovec.h header and includes that from sys/socket.h instead of including the whole of sys/uio.h. This fixes the namespace issue; however, three files in glibc that were relying on the implicit inclusion needed to be updated to include sys/uio.h explicitly. So there is a question of whether sys/socket.h should continue to include sys/uio.h under some conditions, such as __USE_XOPEN or __USE_MISC or __USE_XOPEN || __USE_MISC, for greater compatibility with code that (wrongly) expects this optional inclusion to be present there. (I think the three affected files in glibc should still have explicit sys/uio.h inclusions added in any case, however.) Tested for x86_64. [BZ #21426] * misc/bits/types/struct_iovec.h: New file. * misc/Makefile (headers): Add bits/types/struct_iovec.h. * include/bits/types/struct_iovec.h: New file. * bits/uio.h (struct iovec): Replace by inclusion of <bits/types/struct_iovec.h>. * sysdeps/unix/sysv/linux/bits/uio.h (struct iovec): Likewise. * socket/sys/socket.h: Include <bits/types/struct_iovec.h> instead of <sys/uio.h>. * nptl/tst-cancel4.c: Include <sys/uio.h> * posix/test-errno.c: Likewise. * support/resolv_test.c: Likewise. * conform/Makefile (test-xfail-POSIX2008/arpa/inet.h/conform): Remove. (test-xfail-POSIX2008/netdb.h/conform): Likewise. (test-xfail-POSIX2008/netinet/in.h/conform): Likewise. (test-xfail-POSIX2008/sys/socket.h/conform): Likewise.
2017-04-25posix: Remove ununsed posix_spawn internal assignmentAdhemerval Zanella
The internal 'ret' variable in '__spawni_child' function is not used after assignment in most cases. Checked on x86_64-linux-gnu. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Remove ununsed assignment.
2017-04-25[BZ 21340] add support for POSIX_SPAWN_SETSIDAdhemerval Zanella
This patch adds support for the POSIX_SPAWN_SETSID flag. It was recently accepted by the Austin Group: http://austingroupbugs.net/view.php?id=1044 Checked on x86_64 Daurnimator <quae@daurnimator.com> Adhemerval Zanella <adhemerval.zanella@linaro.org> [BZ #21340] * posix/Makefile (tests): Add tst-posix_spawn-setsid to list of tests. * posix/spawn.h: define POSIX_SPAWN_SETSID flag. * posix/spawnattr_setflags.c (ALL_FLAGS): Add POSIX_SPAWN_SETSID to valid flags. * posix/tst-posix_spawn-setsid.c: Add test for POSIX_SPAWN_SETSID. * sysdeps/mach/hurd/spawni.c (__spawni): Implementation of POSIX_SPAWN_SETSID. * sysdeps/posix/spawni.c (__spawni): Likewise. * sysdeps/unix/sysv/linux/spawni.c (__spawni_child): Likewise. * NEWS: Add note about POSIX_SPAWN_SETSID support.
2017-04-24Macroize function declarations in math_private.hGabriel F. T. Gomes
This patch moves the declaration of many floating-point functions from math_private.h to math_private_calls.h and macroize the declaration to be dependent on floating-point type. For each of float, double, and long double, the new header file is included once. This reduces the amount of repetitive boilerplate that will be required when adding float128 versions of these functions. Tested for powerpc64le and s390x. * sysdeps/generic/math_private.h: Move the declaration of many functions to sysdeps/generic/math_private_calls.h. * sysdeps/generic/math_private_calls.h: New file with the declarations of the functions removed from math_private.h macroized by floating-point type.
2017-04-21S390: Move utf8-utf32-z9.c to multiarch folder and use s390_libc_ifunc_expr ↵Stefan Liebler
macro. The utf8-utf32-z9.c iconv module is using ifunc and thus the ifunc part should be in multiarch folder. Otherwise ifunc is used even if you configure with --disable-multi-arch. This patch moves the ifunc resolvers to the new file sysdeps/s390/multiarch/utf8-utf32-z9.c. The resolvers are now implemented with s390_libc_ifunc_expr macro instead of using gcc attribute ifunc directly. The ifunc versions are implemented in sysdeps/s390/utf8-utf32-z9.c. Each version is only implemented if needed or supported. Therefore there is a block at beginning of the file which selects the versions which should be defined depending on support for multiarch, vector-support and used minimum architecture level. This block defines HAVE_[FROM|TO]_[C|CU|VX] to 1 or 0. The code below is rearranged and surrounded by #if HAVE_[FROM|TO]_[C|CU|VX] == 1. There is no functional change. The cu instructions are z9 zarch instructions. As the major distros are already using the newer z196 as architecture level set, those instructions can be used as fallback version instead of the c-code. This behaviour is decided at compile time via HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT. ChangeLog: * sysdeps/s390/multiarch/utf8-utf32-z9.c: New File. * sysdeps/s390/utf8-utf32-z9.c: Move ifunc resolvers to multiarch folder and define ifunc versions depending on HAVE_[FROM|TO]_[C|CU|VX]. (HAVE_FROM_C, HAVE_FROM_CU, HAVE_FROM_VX, HAVE_TO_C, HAVE_TO_VX, FROM_LOOP_DEFAULT, FROM_LOOP_C, FROM_LOOP_CU, FROM_LOOP_VX, TO_LOOP_DEFAULT, TO_LOOP_C, TO_LOOP_VX): New Define.
2017-04-21S390: Move utf16-utf32-z9.c to multiarch folder and use s390_libc_ifunc_expr ↵Stefan Liebler
macro. The utf16-utf32-z9.c iconv module is using ifunc and thus the ifunc part should be in multiarch folder. Otherwise ifunc is used even if you configure with --disable-multi-arch. This patch moves the ifunc resolvers to the new file sysdeps/s390/multiarch/utf16-utf32-z9.c. The resolvers are now implemented with s390_libc_ifunc_expr macro instead of using gcc attribute ifunc directly. The ifunc versions are implemented in sysdeps/s390/utf16-utf32-z9.c. Each version is only implemented if needed or supported. Therefore there is a block at beginning of the file which selects the versions which should be defined depending on support for multiarch, vector-support and used minimum architecture level. This block defines HAVE_[FROM|TO]_[C|VX] to 1 or 0. The code below is rearranged and surrounded by #if HAVE_[FROM|TO]_[C|VX] == 1. There is no functional change. ChangeLog: * sysdeps/s390/multiarch/utf16-utf32-z9.c: New File. * sysdeps/s390/utf16-utf32-z9.c: Move ifunc resolvers to multiarch folder and define ifunc versions depending on HAVE_[FROM|TO]_[C|VX]. (HAVE_FROM_C, HAVE_FROM_VX, HAVE_TO_C, HAVE_TO_VX, FROM_LOOP_DEFAULT, FROM_LOOP_C, FROM_LOOP_VX, TO_LOOP_DEFAULT, TO_LOOP_C, TO_LOOP_VX): New Define.
2017-04-21S390: Move utf8-utf16-z9.c to multiarch folder and use s390_libc_ifunc_expr ↵Stefan Liebler
macro. The utf8-utf16-z9.c iconv module is using ifunc and thus the ifunc part should be in multiarch folder. Otherwise ifunc is used even if you configure with --disable-multi-arch. This patch moves the ifunc resolvers to the new file sysdeps/s390/multiarch/utf8-utf16-z9.c. The resolvers are now implemented with s390_libc_ifunc_expr macro instead of using gcc attribute ifunc directly. The ifunc versions are implemented in sysdeps/s390/utf8-utf16-z9.c. Each version is only implemented if needed or supported. Therefore there is a block at beginning of the file which selects the versions which should be defined depending on support for multiarch, vector-support and used minimum architecture level. This block defines HAVE_[FROM|TO]_[C|CU|VX] to 1 or 0. The code below is rearranged and surrounded by #if HAVE_[FROM|TO]_[C|CU|VX] == 1. There is no functional change. The cu instructions are z9 zarch instructions. As the major distros are already using the newer z196 as architecture level set, those instructions can be used as fallback version instead of the c-code. This behaviour is decided at compile time via HAVE_S390_MIN_Z196_ZARCH_ASM_SUPPORT. ChangeLog: * sysdeps/s390/multiarch/utf8-utf16-z9.c: New File. * sysdeps/s390/utf8-utf16-z9.c: Move ifunc resolvers to multiarch folder and define ifunc versions depending on HAVE_[FROM|TO]_[C|CU|VX]. (HAVE_FROM_C, HAVE_FROM_CU, HAVE_FROM_VX, HAVE_TO_C, HAVE_TO_VX, FROM_LOOP_DEFAULT, FROM_LOOP_C, FROM_LOOP_CU, FROM_LOOP_VX, TO_LOOP_DEFAULT, TO_LOOP_C, TO_LOOP_VX): New Define.
2017-04-21S390: Use new s390_libc_ifunc_expr macro in s390 8bit-generic.c.Stefan Liebler
This patch adds s390_libc_ifunc_expr macro which uses the __ifunc base macro in include/libc-symbols.h and lets the user define a generic expression to choose the correct ifunc variant. Furthermore as the base macro is used, the ifunc resolver functions are now also using inhibit_stack_protector. S390 needs its own version due to the hwcap argument of the ifunc resolver. This new macro is now used in iconv code in 8bit-generic.c instead of using gcc attribute ifunc directly. ChangeLog: * sysdeps/s390/multiarch/ifunc-resolve.h (s390_libc_ifunc_expr_init, s390_libc_ifunc_expr): New Define. * sysdeps/s390/multiarch/8bit-generic.c (__to_generic, __from_generic): Use s390_libc_ifunc_expr to define ifunc resolvers.
2017-04-19Create more sockets with SOCK_CLOEXEC [BZ #15722]Florian Weimer
2017-04-19Assume that accept4 is always available and worksFlorian Weimer
Simplify the Linux accept4 implementation based on the assumption that it is available in some way. __ASSUME_ACCEPT4_SOCKETCALL was previously unused, so remove it. For ia64, the accept4 system call (and socket call) were backported in kernel version 3.2.18. Reflect this in the installation instructions.
2017-04-18Fix bits/socket.h IOC* namespace issues (bug 21267).Joseph Myers
sysdeps/unix/sysv/linux/bits/socket.h includes asm/socket.h. That includes asm/sockios.h, which on MIPS includes asm/ioctl.h, resulting in namespace violations from IOC* macros. bits/socket.h already has code to handle asm/socket.h unconditionally defining macros that are only wanted for __USE_MISC. This patch extends it to handle the IOC* macros as well (always undefining them if not defined when bits/socket.h was included, as I don't think they are part of the intended API even for __USE_MISC). It's possible there should also be a kernel fix - it's not clear to me that IOC* belong in the uapi headers, and even if they do they might best be split out into another header to avoid getting defined by this particular path. But since glibc needs to deal with existing kernel headers, it also seems appropriate to extend the existing workaround to these macros. Tested (compilation only) with build-many-glibcs.py. [BZ #21267] * sysdeps/unix/sysv/linux/bits/socket.h (IOCSIZE_MASK): Undefine if defined by <asm/socket.h> and not previously defined. (IOCSIZE_SHIFT): Likewise. (IOC_IN): Likewise. (IOC_INOUT): Likewise. (IOC_OUT): Likewise.
2017-04-18x86: Use AVX2 memcpy/memset on Skylake server [BZ #21396]H.J. Lu
On Skylake server, AVX512 load/store instructions in memcpy/memset may lead to lower CPU turbo frequency in certain situations. Use of AVX2 in memcpy/memset has been observed to have improved overall performance in many workloads due to the higher frequency. Since AVX512ER is unique to Xeon Phi, this patch sets Prefer_No_AVX512 if AVX512ER isn't available so that AVX2 versions of memcpy/memset are used on Skylake server. [BZ #21396] * sysdeps/x86/cpu-features.c (init_cpu_features): Set Prefer_No_AVX512 if AVX512ER isn't available. * sysdeps/x86/cpu-features.h (bit_arch_Prefer_No_AVX512): New. (index_arch_Prefer_No_AVX512): Likewise. * sysdeps/x86_64/multiarch/memcpy.S (__new_memcpy): Don't use AVX512 version if Prefer_No_AVX512 is set. * sysdeps/x86_64/multiarch/memcpy_chk.S (__memcpy_chk): Likewise. * sysdeps/x86_64/multiarch/memmove.S (__libc_memmove): Likewise. * sysdeps/x86_64/multiarch/memmove_chk.S (__memmove_chk): Likewise. * sysdeps/x86_64/multiarch/mempcpy.S (__mempcpy): Likewise. * sysdeps/x86_64/multiarch/mempcpy_chk.S (__mempcpy_chk): Likewise. * sysdeps/x86_64/multiarch/memset.S (memset): Likewise. * sysdeps/x86_64/multiarch/memset_chk.S (__memset_chk): Likewise.
2017-04-18x86: Set Prefer_No_VZEROUPPER if AVX512ER is availableH.J. Lu
AVX512ER won't be implemented in any Xeon processors and will be in all Xeon Phi processors. Don't check CPU model number when setting Prefer_No_VZEROUPPER for Xeon Phi. Instead, set Prefer_No_VZEROUPPER if AVX512ER is available. It works with current and future Xeon Phi and non-Xeon Phi processors. * sysdeps/x86/cpu-features.c (init_cpu_features): Set Prefer_No_VZEROUPPER if AVX512ER is available. * sysdeps/x86/cpu-features.h (bit_cpu_AVX512PF): New. (bit_cpu_AVX512ER): Likewise. (bit_cpu_AVX512CD): Likewise. (bit_cpu_AVX512BW): Likewise. (bit_cpu_AVX512VL): Likewise. (index_cpu_AVX512PF): Likewise. (index_cpu_AVX512ER): Likewise. (index_cpu_AVX512CD): Likewise. (index_cpu_AVX512BW): Likewise. (index_cpu_AVX512VL): Likewise. (reg_AVX512PF): Likewise. (reg_AVX512ER): Likewise. (reg_AVX512CD): Likewise. (reg_AVX512BW): Likewise. (reg_AVX512VL): Likewise.
2017-04-18Assume that O_CLOEXEC is always defined and worksFlorian Weimer
2017-04-18Assume that dup3 is availableFlorian Weimer
2017-04-18Assume that pipe2 is always availableFlorian Weimer
The Debian patches for Hurd (which are already required to build glibc before this commit) contain an implementation of pipe2.
2017-04-18powerpc64: strrchr optimization for power8Rajalakshmi Srinivasaraghavan
P7 code is used for <=32B strings and for > 32B vectorized loops are used. This shows as an average 25% improvement depending on the position of search character. The performance is same for shorter strings. Tested on ppc64 and ppc64le.
2017-04-17[BZ 21357] unwind-dw2-fde: Call free() outside of unwind mutexRabin Vincent
__deregister_frame_info_bases() calls free() while holding a mutex which is also used from _Unwind_Find_FDE(). This leads to a deadlock if AddressSanitizer uses _Unwind_Backtrace() from its free() implementation. Checked on mips-linux-gnu and x86_64-linux-gnu. [BZ #21357] * sysdeps/generic/unwind-dw2-fde.c (__deregister_frame_info_bases): Call free() outside of mutex.
2017-04-13Assume that O_NOFOLLOW is always definedFlorian Weimer
2017-04-13powerpc: Optimized strncat for POWER8Rajalakshmi Srinivasaraghavan
With new optimized strnlen for POWER8 [1], this patch adds strncat for power8 to make use of optimized strlen and strnlen. This is faster than POWER7 current implementation for larger strings. Tested on powerpc64 and powerpc64le. [1] https://sourceware.org/ml/libc-alpha/2017-03/msg00491.html * sysdeps/powerpc/powerpc64/multiarch/Makefile (sysdep_routines): Add strncat-power8. * sysdeps/powerpc/powerpc64/multiarch/strncat.c (strncat): Add __strncat_power8 to ifunc list. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c (strncat): Add __strncat_power8 to list of strncat functions. * sysdeps/powerpc/powerpc64/multiarch/strncat-power8.c: New file.
2017-04-12Consolidate Linux mmap implementation (BZ#21270)Adhemerval Zanella
This patch consolidates all Linux mmap implementations on default sysdeps/unix/sysv/linux/mmap{64}.c one. To accomodate all required architecture specific requeriments a new internal header is created (mmap_internal.h) where each architecture add its specific code requirements. Currently only x86_64 (to define MMAP_PREPARE to add MAP_32BITS), s390 (which have a different kernel ABI for mmap), m68k (which have variable minimum page sizes), and MIPS n32 (which zero extend the offset to handle negative one correctly) redefine the new header. The patch also fixes BZ#21270 where default mmap64 on architectures which uses mmap2 silent truncates large offsets value (larger than 1 << (page shift + 8 * sizeof (off_t)) or 1<<44 on architectures with 4096 bytes page size). The new consolidate implementation returns EINVAL as allowed by POSIX. It also adds a tests for on current tst-mmap-offset one. I have run a full make check on x86_64, x86_64-32, i686, aarch64, armhf, powerpc, powerpc64le, sparc64, and sparcv9 without any regressions. I also ran some basic tests (tst-mmap-offset) on sh4, m68k, and on qemu simulated MIPS32 and MIPS64. [BZ #21270] * posix/tst-mmap-offset.c (do_prepare): New function. (do_test): Rename to do_test_bz18877 and use FAIL_RET. (do_test_bz21270): New function. * sysdeps/unix/sysv/linux/aarch64/mmap.c: Remove file. * sysdeps/unix/sysv/linux/arm/mmap.c: Remove file. * sysdeps/unix/sysv/linux/generic/wordsize-32/mmap.c: Likewise. * sysdeps/unix/sysv/linux/hppa/mmap.c: Likewise. * sysdeps/unix/sysv/linux/i386/mmap.c: Likewise. * sysdeps/unix/sysv/linux/m68k/mmap.S: Likewise. * sysdeps/unix/sysv/linux/m68k/mmap64.c: Likewise. * sysdeps/unix/sysv/linux/microblaze/mmap.S: Likewise. * sysdeps/unix/sysv/linux/mips/mips32/mmap.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/mmap.c: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/mmap64.c: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/mmap64.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/mmap.S: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/mmap.c: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/mmap64.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/mmap.c: Likewise. * sysdeps/unix/sysv/linux/mmap_internal.h: New file. * sysdeps/unix/sysv/linux/m68k/mmap_internal.h: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n32/mmap_internal.h: Likewise. * sysdeps/unix/sysv/linux/s390/mmap_internal.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/mmap_internal.h: Likewise. * sysdeps/unix/sysv/linux/mips/mips64/n64/syscalls.list: Remove mmap from auto-generation list. * sysdeps/unix/sysv/linux/mips/mips64/n32/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/wordsize-64/syscalls.list: Likewise. * sysdeps/unix/sysv/linux/mmap.c: New file. * sysdeps/unix/sysv/linux/mmap64.c (__mmap64): Add check for invalid offsets and support for mmap2 syscall.
2017-04-11powerpc: refactor memcmp and memmove IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/memcmp-power4.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/memcmp-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memmove-power7.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcmp.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power7/memcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memmove.S: Likewise.
2017-04-11powerpc: refactor memcpy and mempcpy IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/memcpy-a2.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/memcpy-cell.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memcpy-power4.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memcpy-power6.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memcpy-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memcpy-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/mempcpy-power7.S: Likewise. * sysdeps/powerpc/powerpc64/a2/memcpy.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/cell/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power4/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power7/mempcpy.S: Likewise.
2017-04-11powerpc: refactor memchr, memrchr, and rawmemchr IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/memchr-power7.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/memrchr-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/rawmemchr-power7.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memchr.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power7/memrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power7/rawmemchr.S: Likewise.
2017-04-11powerpc: refactor memset IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/memset-power4.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/memset-power6.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memset-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memset-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/memset-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/memset.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power4/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power6/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power7/memset.S: Likewise. * sysdeps/powerpc/powerpc64/power8/memset.S: Likewise.
2017-04-11powerpc: refactor strcasestr and strstr IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/strcasestr-power8.S: Define the strcasestr implementation name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/strstr-power7.S: Define strstr implementation name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/power7/strstr.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power8/strcasestr.S: Likewise.
2017-04-11powerpc: refactor strchr, strchrnul, and strrchr IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/strchr-power7.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/strchr-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strchr-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strchrnul-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strchrnul-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strrchr-power7.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strchr.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power7/strchrnul.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strrchr.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strchr.S: Likewise. * sysdeps/powerpc/powerpc64/strchr.S: Likewise.
2017-04-11powerpc: refactor strnlen and strlen IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/strlen-power7.S: Define the strlen implementation name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/strlen-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strlen-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strnlen-power7.S: Define the strnlen implementation name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/power7/strlen.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power7/strnlen.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strlen.S: Likewise. * sysdeps/powerpc/powerpc64/strlen.S: Likewise.
2017-04-11powerpc: refactor strcasecmp, strcmp, and strncmp IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/strcasecmp_l-power7.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/strcmp-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strcmp-power8.S Likewise. * sysdeps/powerpc/powerpc64/multiarch/strcmp-power9.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strcmp-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncmp-power4.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncmp-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncmp-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncmp-power9.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncmp-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/power4/strncmp.S: Set a default function name if not defined and pass as parameter to macros accordingly. * sysdeps/powerpc/powerpc64/power7/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/power9/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/power9/strncmp.S: Likewise. * sysdeps/powerpc/powerpc64/strcmp.S: Likewise. * sysdeps/powerpc/powerpc64/strncmp.S: Likewise.
2017-04-11powerpc: refactor stpcpy, stpncpy, strcpy, and strncpy IFUNC.Wainer dos Santos Moschetta
Clean up the IFUNC implementations for powerpc in order to remove unneeded macro definitions. Tested on ppc64le with and without --disable-multi-arch flag. * sysdeps/powerpc/powerpc64/multiarch/stpcpy-power8.S: Define the implementation-specific function name and remove unneeded macros definition. * sysdeps/powerpc/powerpc64/multiarch/stpncpy-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/stpncpy-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strcpy-power8.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncpy-power7.S: Likewise. * sysdeps/powerpc/powerpc64/multiarch/strncpy-power8.S: Likewise. * sysdeps/powerpc/powerpc64/power7/strncpy.S: Set a default function name if not defined. * sysdeps/powerpc/powerpc64/power8/strcpy.S: Likewise. * sysdeps/powerpc/powerpc64/power8/strncpy.S: Likewise.
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