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* S390: Use cu24 instruction for converting from utf16 to utf32.Stefan Liebler2017-06-273-4/+122
| | | | | | | | | | | | | | This patch adds an ifunc variant to use the cu instruction on arch12 CPUs. This new ifunc variant can be built if binutils support z13 vector instructions. At runtime, HWCAP_S390_VXE decides if we can use the cu24 instruction. ChangeLog: * sysdeps/s390/utf16-utf32-z9.c (__from_utf16_loop_vx_cu): Use vector and cu24 instruction. * sysdeps/s390/multiarch/utf16-utf32-z9.c: Add __from_utf16_loop_vx_cu in ifunc resolver.
* S390: Use cu42 instruction for converting from utf32 to utf16.Stefan Liebler2017-06-273-4/+118
| | | | | | | | | | | | | | This patch adds an ifunc variant to use the cu instruction on arch12 CPUs. This new ifunc variant can be built if binutils support z13 vector instructions. At runtime, HWCAP_S390_VXE decides if we can use the cu42 instruction. ChangeLog: * sysdeps/s390/utf16-utf32-z9.c (__to_utf16_loop_vx_cu): Use vector and cu42 instruction. * sysdeps/s390/multiarch/utf16-utf32-z9.c: Add __to_utf16_loop_vx_cu in ifunc resolver.
* S390: Use cu41 instruction for converting from utf32 to utf8.Stefan Liebler2017-06-273-3/+124
| | | | | | | | | | | | | | This patch adds an ifunc variant to use the cu instruction on arch12 CPUs. This new ifunc variant can be built if binutils support z13 vector instructions. At runtime, HWCAP_S390_VXE decides if we can use the cu41 instruction. ChangeLog: * sysdeps/s390/utf8-utf32-z9.c (__to_utf8_loop_vx_cu): Use vector and cu41 instruction. * sysdeps/s390/multiarch/utf8-utf32-z9.c: Add __to_utf8_loop_vx_cu in ifunc resolver.
* S390: Add new hwcap values for new cpu architecture - arch12.Stefan Liebler2017-06-274-3/+19
| | | | | | | | | | | | | | | | | | | The new hwcap values indicate support for: - Vector packed decimal facility - Vector enhancements facility 1 - Guarded storage facility Note: arch12 is NOT the official name of the new CPU. It refers to the edition number of the Principle of Operations manual. ChangeLog: * sysdeps/s390/dl-procinfo.c (_dl_s390_cap_flags): Add vxd, vxe, gs flag. * sysdeps/s390/dl-procinfo.h: Add HWCAP_S390_VXD, HWCAP_S390_VXE, HWCAP_S390_GS capability. * sysdeps/unix/sysv/linux/s390/bits/hwcap.h (HWCAP_S390_VXD, HWCAP_S390_VXE, HWCAP_S390_GS): Define.
* x86-64: Optimize memcmp-avx2-movbe.S for short differenceH.J. Lu2017-06-272-56/+68
| | | | | | | | | | | | | Check the first 32 bytes before checking size when size >= 32 bytes to avoid unnecessary branch if the difference is in the first 32 bytes. Replace vpmovmskb/subl/jnz with vptest/jnc. On Haswell, the new version is as fast as the previous one. On Skylake, the new version is a little bit faster. * sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S (MEMCMP): Check the first 32 bytes before checking size when size >= 32 bytes. Replace vpmovmskb/subl/jnz with vptest/jnc.
* Add ChangeLog entries for the last 6 commitsMike FABIAN2017-06-271-0/+42
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* localedata: Months updated from CLDR - other scripts [BZ #21217]Rafal Luzynski2017-06-276-16/+16
| | | | | | | | | * localedata/locales/am_ET (mon): Updated from CLDR. * localedata/locales/km_KH (mon): Likewise. * localedata/locales/lo_LA (mon): Likewise. * localedata/locales/si_LK (mon): Likewise. * localedata/locales/yi_US (mon): Likewise. * localedata/locales/yue_HK (mon): Likewise.
* localedata: Months updated from CLDR - other Indic scripts [BZ #21217]Rafal Luzynski2017-06-275-25/+25
| | | | | | | | * localedata/locales/gu_IN (mon): Updated from CLDR. * localedata/locales/kn_IN (mon): Likewise. * localedata/locales/ml_IN (mon): Likewise. * localedata/locales/pa_IN (mon): Likewise. * localedata/locales/te_IN (mon): Likewise.
* localedata: Months updated from CLDR - Devanagari scripts [BZ #21217]Rafal Luzynski2017-06-275-19/+19
| | | | | | | | * localedata/locales/brx_IN (mon): Updated from CLDR. * localedata/locales/hi_IN (mon): Likewise. * localedata/locales/kok_IN (mon): Likewise. * localedata/locales/mr_IN (mon): Likewise. * localedata/locales/ne_NP (mon): Likewise.
* localedata: Months updated from CLDR - Bengali scripts [BZ #21217]Rafal Luzynski2017-06-273-6/+6
| | | | | | * localedata/locales/as_IN (mon): Updated from CLDR. * localedata/locales/bn_BD (mon): Likewise. * localedata/locales/bn_IN (mon): Likewise.
* localedata: Months updated from CLDR - Arabic scripts [BZ #21217]Rafal Luzynski2017-06-2713-79/+79
| | | | | | | | | | | | | | | | * localedata/locales/ar_DZ (mon): Updated from CLDR. * localedata/locales/ar_IQ (mon): Likewise. * localedata/locales/ar_JO (mon): Likewise. * localedata/locales/ar_LB (mon): Likewise. * localedata/locales/ar_MA (mon): Likewise. * localedata/locales/ar_SA (mon): Likewise. * localedata/locales/ar_SY (mon): Likewise. * localedata/locales/ar_TN (mon): Likewise. * localedata/locales/ks_IN (mon): Likewise. * localedata/locales/ps_AF (mon): Likewise. * localedata/locales/ug_CN (mon): Likewise. * localedata/locales/ur_IN (mon): Likewise. * localedata/locales/ur_PK (mon): Likewise.
* localedata: More months updated from CLDR-31 [BZ #21217]Rafal Luzynski2017-06-275-60/+60
| | | | | | | | | | | | | | | | | | [BZ #21217] * localedata/locales/ln_CD (mon): Months imported from CLDR, all changed: "Yanwáli" to "sánzá ya yambo", "Febwáli" to "sánzá ya míbalé" and so on. * locales/mn_MN (mon): reworded "Хулгана сарын" to "Нэгдүгээр сар", "Үхэр сарын" to "Хоёрдугаар сар", and so on. * locales/vi_VN (mon): reworded "Tháng một" to "Tháng 1", "Tháng hai" to "Tháng 2", "Tháng ba" to "Tháng 3", and so on. * locales/yo_NG (mon): reworded "Jánúárì" to "Oṣù Ṣẹ́rẹ́", "Fẹ́búárì" to "Oṣù Èrèlè", "Máàṣì" to "Oṣù Ẹrẹ̀nà", and so on. * locales/zu_ZA (mon): reworded "uMasingana" to "Januwari", "uNhlolanja" to "Februwari", "uNdasa" to "Mashi", and so on.
* localedata: Month names updated from CLDR-31 [BZ #21217]Rafal Luzynski2017-06-2719-112/+155
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | [BZ #21217] * localedata/locales/be_BY (mon, abmon): Reworded "Травень" ("travyen'") and abbreviated "Тра" ("tra") to "Май" ("may"). * localedata/locales/be_BY@latin (mon, abmon): Likewise, "Travień" and abbreviated "Tra" reworded to "Maj". * localedata/locales/br_FR (day, abmon, mon, d_t_fmt): Use the proper Unicode apostrophe (Cʼhwevrer, mercʼher, Dʼar). * localedata/locales/es_PE (mon, abmon): Reworded "septiembre" to "setiembre" and abbreviated "sep" to "set". * localedata/locales/es_UY: Likewise. * localedata/locales/fil_PH (mon): Reworded "Septiyembre" to "Setyembre" and "Nobiyembre" to "Nobyembre". * localedata/locales/fur_IT (mon, abmon): Reworded "Decembar" to "Dicembar" and abbreviated "Dec" to "Dic". * localedata/locales/fy_NL (mon): Reworded "Janaris" to "Jannewaris". * localedata/locales/ha_NG (mon, abmon): Reworded "Fabrairu" to "Faburairu" and "Afrilu" to "Afirilu", also abbreviated "Afr" to "Afi". * localedata/locales/ig_NG (mon, abmon): All months begin with uppercase. Reworded: "febụrụwarị" to "Febrụwarị", "epreel" to "Eprel", "ọgọstụ" to "Ọgọọst", "nọvemba" to "Novemba", "nọv" to "Nov". * localedata/locales/kw_GB (mon): Months imported from CLDR, many changes: all "Mys" to "mis", "Mys Whevrel" to "mis Hwevrer", "Mys Merth" to "mis Meurth", "Mys Evan" to "mis Metheven", and so on. (abmon): "Whe>" to "Hwe", "Mer" to "Meu", "Evn" to "Met". * localedata/locales/lg_UG (mon): Reworded "Julaai" to "Julaayi". * localedata/locales/ln_CD (mon): Months imported from CLDR, all changed: "Yanwáli" to "sánzá ya yambo", "Febwáli" to "sánzá ya míbalé" and so on. * localedata/locales/mg_MG (mon, abmon): All months now begin with uppercase. * localedata/locales/se_NO (mon): Months imported from CLDR, all suffixes changed from "mánu" to "mánnu". * localedata/locales/sr_RS@latin (mon): Reworded "juni" to "jun" and "juli" to "jul". * localedata/locales/uz_UZ (mon): Reworded "Sentyabr" to "Sentabr" and "Oktyabr" to "Oktabr". * localedata/locales/uz_UZ@cyrillic (mon): Most of the names reworded, no longer end with a soft sign. * localedata/locales/wae_CH (mon): reworded "Bráchet" to "Bráčet", "Öigschte" to "Öigšte", "Herbschtmánet" to "Herbštmánet", "Chrischtmánet" to "Chrištmánet".
* S390: Save and restore r12 in TLS_IE macro.Stefan Liebler2017-06-273-9/+18
| | | | | | | | | | | | | | | | | | | | | The testcases elf/tst-tls1-static and elf/tst-tls2-static are failing on s390 if gcc is configured with --enable-default-pie. According to binutils, there are only four valid cases for IE -> LE transition: lg %rx,(0,%ry) -> sllg %rx,%ry,0 lg %rx,(%ry,0) -> sllg %rx,%ry,0 lg %rx,(%ry,%r12) -> sllg %rx,%ry,0 lg %rx,(%r12,%ry) -> sllg %rx,%ry,0 Thus I've adjusted the TLS_IE macro in s390 tls-macros.h files in PIC case in order to use r12 for the address of global offset table. The adjusted macro definition is not used if gcc is not configured with --enable-default-pie. ChangeLog: * sysdeps/s390/s390-32/tls-macros.h (TLS_IE): Use r12 for GOT address. * sysdeps/s390/s390-64/tls-macros.h (TLS_IE): Likewise.
* resolv: Avoid timeouts in test-resolv-res-init, test-resolv-res_init-threadFlorian Weimer2017-06-272-0/+85
| | | | | | | Some Linux kernels have very aggressive ICMP rate limiting on the loopback interface. This commit introduces a minimal echoing DNS server inside the network namespace, so that there is no need for ICMP error messages anymore.
* resolv: Call _res_hconf_init from __res_vinitFlorian Weimer2017-06-2711-19/+30
| | | | | | | | Many callers of __res_maybe_init also call _res_hconf_init. Additional calls to the latter do not hurt because the function does its work only once. (/etc/hosts.conf is not reloaded or even checked for changes.) This means that we can simplify the code by calling _res_hconf_init directly from __res_vinit.
* Add float128 support for ia64.Joseph Myers2017-06-2614-4/+393
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables float128 support for ia64, so that all the configurations where GCC supports _Float128 / __float128 as an ABI-distinct type now have glibc support as well. bits/floatn.h declares the support to be available for GCC 4.4 and later, which is when the libgcc support was added. The removal of sysdeps/ia64/fpu/k_rem_pio2.c is because the generic k_rem_pio2.c defines a function required by the float128 code. Tested (compilation only) with build-many-glibcs.py for ia64 (GCC 6 and GCC 7). Given how long it is since libm-test-ulps has been updated for ia64, I think truncating the file and regenerating it from scratch would be a good idea when doing a regeneration to add float128 ulps. I expect various ia64 libm issues (at least some already filed in Bugzilla) to result in test failures even after ulps regeneration, but hopefully the float128 code will pass tests as it's the same as used on other architectures. * sysdeps/ia64/Implies: Add ieee754/float128. * sysdeps/ia64/bits/floatn.h: New file. * sysdeps/ia64/float128-abi.h: Likewise. * manual/math.texi (Mathematics): Document support for _Float128 on ia64. * sysdeps/ia64/Makefile [$(subdir) = math] (CPPFLAGS): Append to Makefile variable. * sysdeps/ia64/fpu/e_sqrtf128.c: New file. * sysdeps/ia64/fpu/k_rem_pio2.c: Remove file. * sysdeps/ia64/fpu/sfp-machine.h: New file. Based on libgcc. * sysdeps/ia64/math-tests.h: New file. * math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): Also define based on TEST_COND_binary128 for [__ia64__]. * sysdeps/unix/sysv/linux/ia64/libc.abilist: Update. * sysdeps/unix/sysv/linux/ia64/libm.abilist: Likewise,
* Rename struct ucontext tag (bug 21457).Joseph Myers2017-06-2637-59/+130
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The ucontext_t type has a tag struct ucontext. As with previous such issues for siginfo_t and stack_t, this tag is not permitted by POSIX (is not in a reserved namespace), and so namespace conformance means breaking C++ name mangling for this type. In this case, the type does need to have some tag rather than just a typedef name, because it includes a pointer to itself. This patch uses struct ucontext_t as the new tag, so the type is mangled as ucontext_t (the POSIX *_t reservation applies in all namespaces, not just the namespace of ordinary identifiers). Another reserved name such as struct __ucontext could of course be used. Because of other namespace issues, this patch does not by itself fix bug 21457 or allow any XFAILs to be removed. Tested for x86_64, and with build-many-glibcs.py. [BZ #21457] * sysdeps/arm/sys/ucontext.h (struct ucontext): Rename to struct ucontext_t. * sysdeps/generic/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/i386/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/m68k/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/mips/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/aarch64/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/alpha/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/arm/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/hppa/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/ia64/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/m68k/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/mips/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/nios2/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/powerpc/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/s390/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/sh/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/sparc/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/tile/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/unix/sysv/linux/x86/sys/ucontext.h (struct ucontext): Likewise. * sysdeps/powerpc/powerpc32/backtrace.c (struct rt_signal_frame_32): Likewise. * sysdeps/powerpc/powerpc64/backtrace.c (struct signal_frame_64): Likewise. * sysdeps/unix/sysv/linux/aarch64/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/aarch64/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/arm/register-dump.h (register_dump): Likewise. * sysdeps/unix/sysv/linux/arm/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/hppa/profil-counter.h (__profil_counter): Likewise. * sysdeps/unix/sysv/linux/microblaze/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/mips/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/nios2/kernel_rt_sigframe.h (struct kernel_rt_sigframe): Likewise. * sysdeps/unix/sysv/linux/nios2/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/sh/makecontext.S (__makecontext): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc64/makecontext.c (__start_context): Likewise. * sysdeps/unix/sysv/linux/tile/sigcontextinfo.h (SIGCONTEXT): Likewise. * sysdeps/unix/sysv/linux/x86_64/register-dump.h (register_dump): Likewise. * sysdeps/unix/sysv/linux/x86_64/sigcontextinfo.h (SIGCONTEXT): Likewise.
* Add float128 support for x86_64, x86.Joseph Myers2017-06-2626-95/+2663
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch enables float128 support for x86_64 and x86. All GCC versions that can build glibc provide the required support, but since GCC 6 and before don't provide __builtin_nanq / __builtin_nansq, sNaN tests and some tests of NaN payloads need to be disabled with such compilers (this does not affect the generated glibc binaries at all, just the tests). bits/floatn.h declares float128 support to be available for GCC versions that provide the required libgcc support (4.3 for x86_64, 4.4 for i386 GNU/Linux, 4.5 for i386 GNU/Hurd); compilation-only support was present some time before then, but not really useful without the libgcc functions. fenv_private.h needed updating to avoid trying to put _Float128 values in registers. I make no assertion of optimality of the math_opt_barrier / math_force_eval definitions for this case; they are simply intended to be sufficient to work correctly. Tested for x86_64 and x86, with GCC 7 and GCC 6. (Testing for x32 was compilation tests only with build-many-glibcs.py to verify the ABI baseline updates. I have not done any testing for Hurd, although the float128 support is enabled there as for GNU/Linux.) * sysdeps/i386/Implies: Add ieee754/float128. * sysdeps/x86_64/Implies: Likewise. * sysdeps/x86/bits/floatn.h: New file. * sysdeps/x86/float128-abi.h: Likewise. * manual/math.texi (Mathematics): Document support for _Float128 on x86_64 and x86. * sysdeps/i386/fpu/fenv_private.h: Include <bits/floatn.h>. (math_opt_barrier): Do not put _Float128 values in floating-point registers. (math_force_eval): Likewise. [__x86_64__] (SET_RESTORE_ROUNDF128): New macro. * sysdeps/x86/fpu/Makefile [$(subdir) = math] (CPPFLAGS): Append to Makefile variable. * sysdeps/x86/fpu/e_sqrtf128.c: New file. * sysdeps/x86/fpu/sfp-machine.h: Likewise. Based on libgcc. * sysdeps/x86/math-tests.h: New file. * math/libm-test-support.h (XFAIL_FLOAT128_PAYLOAD): New macro. * math/libm-test-getpayload.inc (getpayload_test_data): Use XFAIL_FLOAT128_PAYLOAD. * math/libm-test-setpayload.inc (setpayload_test_data): Likewise. * math/libm-test-totalorder.inc (totalorder_test_data): Likewise. * math/libm-test-totalordermag.inc (totalordermag_test_data): Likewise. * sysdeps/unix/sysv/linux/i386/libc.abilist: Update. * sysdeps/unix/sysv/linux/i386/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/64/libm.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libc.abilist: Likewise. * sysdeps/unix/sysv/linux/x86_64/x32/libm.abilist: Likewise. * sysdeps/i386/fpu/libm-test-ulps: Likewise. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise. * sysdeps/x86_64/fpu/libm-test-ulps: Likewise.
* Call exit directly in clone (BZ #21512)Adhemerval Zanella2017-06-2619-104/+171
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | On aarch64, alpha, arm, hppa, mips, nios2, powerpc, sh, sparc, tile, and x86_64 the clone syscall jumps to _exit after the child execution and the function ends the process execution by calling exit_group. This behavior have a small issue where threads created with CLONE_THREAD using clone syscall directly will eventually exit the whole group altogether instead of just the thread created. Also, s390, microblaze, ia64, i386, and m68k differs by calling exit syscall directly. This patch changes all architectures to call the exit syscall directly, as for s390, microblaze, ia64, i386, and m68k. This do not have change glibc internal behavior in any sort, since the only usage of clone implementation in posix_spawn calls _exit directly in the created child (fork uses a direct call to clone). Checked on x86_64-linux-gnu, i686-linux-gnu, aarch64-linux-gnu, powerpc-linux-gnu, powerpc64le-linux-gnu, sparc64-linux-gnu, and sparcv9-linux-gnu. [BZ #21512] * sysdeps/unix/sysv/linux/aarch64/clone.S (__clone): Call exit syscall instead of jump to _exit. (CLONE_VM_BIT): Remove unused define. (CLONE_VM): Likewise. (CLONE_THREAD_BIT): Likewise. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/alpha/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/arm/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/i386/clone.S (CLONE_VM): Likewise. * sysdeps/unix/sysv/linux/ia64/clone2.S (__clone2): Call exit syscall instead of jump to _exit. * sysdeps/unix/sysv/linux/hppa/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/mips/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/nios2/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. (CLONE_THREAD): Likewise. * sysdeps/unix/sysv/linux/sh/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/sparc/sparc32/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/sparc/sparc64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/tile/clone.S (__clone): Likewise. * sysdeps/unix/sysv/linux/x86_64/clone.S (__clone): Likewise. (CLONE_VM): Remove unused define. * sysdeps/unix/sysv/linux/Makefile (tests): Add tst-clone3. * sysdeps/unix/sysv/linux/tst-clone3.c: New file. Fix
* powerpc64le: Enable float128Paul E. Murphy2017-06-2614-1/+1192
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds ULPs for the float128 type, updates the abilist for libc and libm, and adds the files bits/floatn.h and float128-abi.h, in order to enable the new type for powerpc64le. This patch also adds the implementation of sqrtf128 for powerpc64le, since it is not implemented in libgcc. The sfp-machine.h header is taken from libgcc. Tested for powerpc64le (GCC 6.2 and GCC 7.1), powerpc64 and s390x. * manual/math.texi (Mathematics): Mention the enabling of float128 for powerpc64le. * sysdeps/powerpc/bits/floatn.h: New file. * sysdeps/powerpc/fpu/libm-test-ulps: Regenerated. * sysdeps/powerpc/fpu/math_private.h: (__ieee754_sqrtf128): New inline override. * sysdeps/powerpc/powerpc64le/Implies-before: New file. * sysdeps/powerpc/powerpc64le/Makefile: New file. * sysdeps/powerpc/powerpc64le/fpu/e_sqrtf128.c: New file. * sysdeps/powerpc/powerpc64le/fpu/sfp-machine.h: New file. * sysdeps/powerpc/powerpc64le/power9/fpu/e_sqrtf128.c: New file. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libc-le.abilist: Updated. * sysdeps/unix/sysv/linux/powerpc/powerpc64/libm-le.abilist: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64le/float128-abi.h: New file.
* powerpc64le: Require at least POWER8 for powerpc64leGabriel F. T. Gomes2017-06-263-0/+51
| | | | | | | | | Support for powerpc64le requires POWER8 or newer processors. Builds for older processors are not tested. Require at least POWER8 to avoid unintentional builds. * sysdeps/powerpc/powerpc64le/configure.ac: Check for POWER8. * sysdeps/powerpc/powerpc64le/configure: Update.
* powerpc64le: Check for compiler features for float128Gabriel F. T. Gomes2017-06-265-0/+96
| | | | | | | | | | | | | | | On powerpc64le, support for float128 will be enabled, which requires some compiler features to be present. This patch adds a configure test to check for such features, which are provided for powerpc64le since GCC 6.2. Tested for powerpc64 and powerpc64le. * INSTALL: Regenerate. * manual/install.texi (Recommended Tools for Compilation): Mention the powerpc64le-specific requirement in the manual. * sysdeps/powerpc/powerpc64le/configure.ac: New file with checks for the compiler features required for building float128. * sysdeps/powerpc/powerpc64le/configure: New, auto-generated file.
* Prevent an implicit int promotion in malloc/tst-alloc_buffer.cTulio Magno Quites Machado Filho2017-06-262-1/+6
| | | | | | | | | | | | According to ISO C11, section 6.5.3.3 "Unary arithmetic operators", the result of the ~ operator is the bitwise complement of its (promoted) operand. This can lead to a comparison of a char with another integer type. Tested on powerpc, powerpc64 and powerpc64le. * malloc/tst-alloc_buffer.c (test_misaligned): Cast to char before comparing with another char.
* manual: Fix a minor grammatical error.Rical Jasan2017-06-252-1/+5
| | | | * manual/math.texi: Fix a grammatical error.
* resolv/tst-resolv-basic: Add test cases for bug 21295Florian Weimer2017-06-242-0/+21
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* getaddrinfo: Merge IPv6 addresses and IPv4 addresses [BZ #21295]Dmitry Bilunov2017-06-242-4/+10
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* Avoid .symver on common symbols [BZ #21666]H.J. Lu2017-06-232-4/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The .symver directive on common symbol just creates a new common symbol, not an alias and the newer assembler with the bug fix for https://sourceware.org/bugzilla/show_bug.cgi?id=21661 will issue an error. Before the fix, we got $ readelf -sW libc.so | grep "loc[12s]" 5109: 00000000003a0608 8 OBJECT LOCAL DEFAULT 36 loc1 5188: 00000000003a0610 8 OBJECT LOCAL DEFAULT 36 loc2 5455: 00000000003a0618 8 OBJECT LOCAL DEFAULT 36 locs 6575: 00000000003a05f0 8 OBJECT GLOBAL DEFAULT 36 locs@GLIBC_2.2.5 7156: 00000000003a05f8 8 OBJECT GLOBAL DEFAULT 36 loc1@GLIBC_2.2.5 7312: 00000000003a0600 8 OBJECT GLOBAL DEFAULT 36 loc2@GLIBC_2.2.5 in libc.so. The versioned loc1, loc2 and locs have the wrong addresses. After the fix, we got $ readelf -sW libc.so | grep "loc[12s]" 6570: 000000000039e3b8 8 OBJECT GLOBAL DEFAULT 34 locs@GLIBC_2.2.5 7151: 000000000039e3c8 8 OBJECT GLOBAL DEFAULT 34 loc1@GLIBC_2.2.5 7307: 000000000039e3c0 8 OBJECT GLOBAL DEFAULT 34 loc2@GLIBC_2.2.5 [BZ #21666] * misc/regexp.c (loc1): Add __attribute__ ((nocommon)); (loc2): Likewise. (locs): Likewise.
* inet_pton: Reject IPv6 addresses with many leading zeros [BZ #16637]Florian Weimer2017-06-233-21/+20
| | | | 2001:db8:00001::f is not a valid IPv6 address according to RFC 2373.
* Clean pthread functions namespaces for C11 threadsAdhemerval Zanella2017-06-2339-59/+156
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch adds internal definition (through {libc_}hidden_{proto,def}) and also change some strong to weak alias for symbols that might be used by C11 threads implementations. The patchset should not change libc/libpthread functional, although object changes are expected (since now internal symbols are used instead) and final exported symbols through GLIBC_PRIVATE is also expanded (to cover libpthread usage of __mmap{64}, __munmap, __mprotect). Checked with a build for all major ABI (aarch64-linux-gnu, alpha-linux-gnu, arm-linux-gnueabi, i386-linux-gnu, ia64-linux-gnu, m68k-linux-gnu, microblaze-linux-gnu [1], mips{64}-linux-gnu, nios2-linux-gnu, powerpc{64le}-linux-gnu, s390{x}-linux-gnu, sparc{64}-linux-gnu, tile{pro,gx}-linux-gnu, and x86_64-linux-gnu). * include/sched.h (__sched_get_priority_max): Add libc hidden proto. (__sched_get_prioriry_min): Likewise. * include/sys/mman.h (__mmap): Likewise. (__mmap64): Likewise. (__munmap): Likewise. (__mprotect): Likewise. * include/termios.h (__tcsetattr): Likewise. * include/time.h (__nanosleep): Use hidden_proto instead of libc_hidden_proto. * posix/nanosleep.c (__nanosleep): Likewise. * misc/Versions (libc): Export __mmap, __munmap, __mprotect, __sched_get_priority_min, and __sched_get_priority_max under GLIBC_PRIVATE. * nptl/allocatestack.c (__free_stacks): Use internal definition for libc symbols. (change_stack_perm): Likewise. (allocate_stack): Likewise. * sysdeps/posix/gethostname.c: Likewise. * nptl/tpp.c (__init_sched_fifo_prio): Likewise. * sysdeps/unix/sysv/linux/i386/smp.h (is_smp_system): Likewise. * sysdeps/unix/sysv/linux/powerpc/ioctl.c (__ioctl): Likewise. * nptl/pthreadP.h (__pthread_mutex_timedlock): Add definition. (__pthread_key_delete): Likewise. (__pthread_detach): Likewise. (__pthread_cancel): Likewise. (__pthread_mutex_trylock): Likewise. (__pthread_mutexattr_init): Likewise. (__pthread_mutexattr_settype): Likewise. * nptl/pthread_cancel.c (pthread_cancel): Change to internal name and create alias for exported one. * nptl/pthread_join.c (pthread_join): Likewise. * nptl/pthread_detach.c (pthread_detach): Likewise. * nptl/pthread_key_delete.c (pthread_key_delete): Likewise. * nptl/pthread_mutex_timedlock.c (pthread_mutex_timedlock): Likewise. * nptl/pthread_create.c: Change static requirements for pthread symbols. * nptl/pthread_equal.c (__pthread_equal): Change strong alias to weak for internal definition. * nptl/pthread_exit.c (__pthread_exit): Likewise. * nptl/pthread_getspecific.c (__pthread_getspecific): Likewise. * nptl/pthread_key_create.c (__pthread_key_create): Likewise. * nptl/pthread_mutex_destroy.c (__pthread_mutex_destroy): Likewise. * nptl/pthread_mutex_init.c (__pthread_mutex_init): Likewise. * nptl/pthread_mutex_lock.c (__pthread_mutex_lock): Likewise. * nptl/pthread_mutex_trylock.c (__pthread_mutex_trylock): Likewise. * nptl/pthread_mutex_unlock.c (__pthread_mutex_unlock): Likewise. * nptl/pthread_mutexattr_init.c (__pthread_mutexattr_init): Likwise. * nptl/pthread_mutexattr_settype.c (__pthread_mutexattr_settype): Likewise. * nptl/pthread_self.c (__pthread_self): Likewise. * nptl/pthread_setspecific.c (__pthread_setspecific): Likewise. * sysdeps/unix/sysv/linux/tcsetattr.c (tcsetattr): Likewise. * misc/mmap.c (__mmap): Add internal symbol definition. * misc/mmap.c (__mmap64): Likewise. * sysdeps/unix/sysv/linux/mmap.c (__mmap): Likewise. * sysdeps/unix/sysv/linux/mmap64.c (__mmap): Likewise. (__mmap64): Likewise. * sysdeps/unix/sysv/linux/i386/Versions (libc) [GLIBC_PRIVATE): Add __uname.
* Update x86 ulps for GCC 7.Joseph Myers2017-06-233-16/+19
| | | | | | | | | | Testing with GCC 7 for 32-bit x86 showed some ulps differences, presumably from variation in when values with excess precision get spilled to the stack and so lose that precision. This patch updates the libm-test-ulps files accordingly. * sysdeps/i386/fpu/libm-test-ulps: Update. * sysdeps/i386/i686/fpu/multiarch/libm-test-ulps: Likewise.
* Make libm-test-support code clear exceptions after each test.Joseph Myers2017-06-232-0/+16
| | | | | | | | | | | | | | | | | | | | | | | The libm-test-support code clears exceptions at the end of test_exceptions. However, it's possible that exceptions get raised as part of the subsequent checks on the results of the function being tested, and such exceptions then carry through to the next test run and can cause that to fail spuriously. In particular, it's possible for the ulps calculation to raise exceptions in some cases. This patch puts exception clearing at the end of each of the check_* functions, alongside errno clearing, to avoid one test affecting the next in that way. Tested for x86_64 (in conjunction with float128 patches). * libm-test-support.c (check_float_internal): Clear exceptions at end of function. (check_int): Likewise. (check_long): Likewise. (check_bool): Likewise. (check_longlong): Likewise. (check_intmax_t): Likewise. (check_uintmax_t): Likewise.
* Avoid localplt issues from x86 fereaiseexcept inline.Joseph Myers2017-06-233-0/+19
| | | | | | | | | | | | | | | | | | | | | | | Building for x86_64 with float128 support, I get a localplt test failure from lrintf128 calling feraiseexcept. The problem is that an inline optimized version of feraiseexcept calls __feraiseexcept_renamed in cases where it doesn't completely expand inline, and that in turn is redirected to feraiseexcept for a library call, so meaning the redirection of feraiseexcept to __GI_feraiseexcept inside libm is lost for that call. This patch fixes the problem by moving the redirect to an internal header in the _LIBC case, with the internal header using __GI_feraiseexcept where appropriate. Tested for x86_64 (in conjunction with float128 patches). * sysdeps/x86/fpu/bits/fenv.h [_LIBC] (__feraiseexcept_renamed): Do not declare. * sysdeps/x86/fpu/include/bits/fenv.h [_LIBC && __USE_EXTERN_INLINES] (__feraiseexcept_renamed): Declare here, redirected to __GI_feraiseexcept if [SHARED && IS_IN (libm)].
* x86-64: Optimize L(between_2_3) in memcmp-avx2-movbe.SH.J. Lu2017-06-232-4/+7
| | | | | | | | | | | | | | | | | Turn movzbl -1(%rdi, %rdx), %edi movzbl -1(%rsi, %rdx), %esi orl %edi, %eax orl %esi, %ecx into movb -1(%rdi, %rdx), %al movb -1(%rsi, %rdx), %cl * sysdeps/x86_64/multiarch/memcmp-avx2-movbe.S (between_2_3): Replace movzbl and orl with movb.
* Document _FloatN and _FloatNx versions of math functionsGabriel F. T. Gomes2017-06-233-49/+576
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The functions defined in ISO/IEC TS 18661-3 take floating-point arguments and return floating-point numbers of _FloatN and _FloatNx types. Apart from the type, these functions behave the same as their float, double, and long double counterparts. This patch adds the newer functions to the manual. * manual/arith.texi (Infinity and NaN): Document SNANFN and SNANFNx. (Error Reporting by Mathematical Functions): Document HUGE_VAL_FN and HUGE_VAL_FNx. (Absolute Value): Document fabsfN, fabsfNx, cabsfN, cabsfNx. Rephrase the paragraph that mentions that fabs, fabsf, and fabsl are in math.h, to avoid having to list the _FloatN and _FloatNx variants as well. Likewise for the cabs functions. (Normalization Functions): Document frexpfN, frexpfNx, ldexpfN, ldexpfNx, scalbnfN, scalbnfNx, scalblnfN, scalblnfNx. Mention that _FloatN and _FloatNx variants of scalbn and scalbln come from TS 18661-3, since this section explicitly states that these functions come from BSD. (Rounding Functions): Document ceilfN, ceilfNx, floorfN, floorfNx, truncfN, truncfNx, rintfN, rintfNx, nearbyintfN, nearbyintfNx, roundfN, roundfNx, roundevenfN, roundevenfNx, lrintfN, lrintfNx, llrintfN, llrintfNx, lroundfN, lroundfNx, llroundfN, llroundfNx, fromfpfN, fromfpfNx, ufromfpfN, ufromfpfNx, fromfpxfN, fromfpxfNx, ufromfpxfN, ufromfpxfNx, modffN, modffNx. (Remainder Functions): Document fmodfN, fmodfNx, remainderfN, remainderfNx. (Setting and modifying single bits of FP values): Document copysignfN, copysignfNx, nextafterfN, nextafterfNx, nextupfN, nextupfNx, nextdownfN, nextdownfNx, nanfN, nanfNx, canonicalizefN, canonicalizefNx, getpayloadfN, getpayloadfNx, setpayloadfN, setpayloadfNx, setpayloadsigfN, setpayloadsigfNx. (Floating-Point Comparison Functions): Document totalorderfN, totalorderfNx, totalordermagfN, totalordermagfNx. (Miscellaneous FP arithmetic functions): Document fminfN, fminfNx, fmaxfN, fmaxfNx, fminmagfN, fminmagfNx, fmaxmagfN, fmaxmagfNx, fdimfN, fdimfNx, fmafN, fmafNx. (Complex Numbers): Document the complex types: _FloatN complex and _FloatNx complex. (rojections, Conjugates, and Decomposing of Complex Numbers): Document crealfN, crealfNx, cimagfN, cimagfNx, conjfN, conjfNx, cargfN, cargfNx, cprojfN, cprojfNx. * manual/math.texi (Mathematics): Mention that the _FloatN and _FloatNx variants of the math functions come from TS 18661-3, unless otherwise stated. (Predefined Mathematical Constants): Document the _FloatN and _FloatNx variants of the macros prefixed with M_. (Trigonometric Functions): Document sinfN, sinfNx, cosfN, cosfNx, tanfN, tanfNx, sincosfN, sincosfNx, csinfN, csinfNx, ccosfN, ccosfNx, ctanfN, ctanfNx. (Inverse Trigonometric Functions): Document asinfN, asinfNx, acosfN, acosfNx, atanfN, atanfNx, atan2fN, atan2fNx. (Exponentiation and Logarithms): Document expfN, expfNx, exp2fN, exp2fNx, exp10fN, exp10fNx, logfN, logfNx, log10fN, log10fNx, log2fN, log2fNx, logbfN, logbfNx, ilogbfN, ilogbfNx, llogbfN, llogbfNx, powfN, powfNx, sqrtfN, sqrtfNx, cbrtfN, cbrtfNx, hypotfN, hypotfNx, expm1fN, expm1fNx, log1pfN, log1pfNx, cexpfN, cexpfNx, clogfN, clogfNx, clog10fN, clog10fNx, csqrtfN, csqrtfNx, cpowfN, cpowfNx. (Hyperbolic Functions): sinhfN, sinhfNx, coshfN, coshfNx, tanhfN, tanhfNx, csinhfN, csinhfNx, ccoshfN, ccoshfNx, ctanhfN, ctanhfNx, asinhfN, asinhfNx, acoshfN, acoshfNx, atanhfN, atanhfNx, casinhfN, casinhfNx, cacoshfN, cacoshfNx, catanhfN, catanhfNx. (Special Functions): Document erffN, erffNx, erfcfN, erfcfNx, lgammafN, lgammafNx, lgammarfN_r, lgammafNx_r, tgammafN, tgammafNx, j0fN, j0fNx, j1fN, j1fNx, jnfN, jnfNx, y0fN, y0fNx, y1fN, y1fNx, ynfN, ynfNx.
* x86-64: Fix comment typo in memcmp-avx2-movbe.SFlorian Weimer2017-06-232-1/+5
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* resolv/res_libc.c: Reformat to GNU styleFlorian Weimer2017-06-232-67/+90
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* resolv: Clean up declarations of the __res_initstamp variableFlorian Weimer2017-06-234-2/+12
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* x86-64: memcmp-avx2-movbe.S needs saturating subtraction [BZ #21662]Florian Weimer2017-06-233-15/+23
| | | | | | | | | | | | | | | | | | | | | | | | | | This code: L(between_2_3): /* Load as big endian with overlapping loads and bswap to avoid branches. */ movzwl -2(%rdi, %rdx), %eax movzwl -2(%rsi, %rdx), %ecx shll $16, %eax shll $16, %ecx movzwl (%rdi), %edi movzwl (%rsi), %esi orl %edi, %eax orl %esi, %ecx bswap %eax bswap %ecx subl %ecx, %eax ret needs a saturating subtract because the full register is used. With this commit, only the lower 24 bits of the register are used, so a regular subtraction suffices. The test case change adds coverage for these kinds of bugs.
* Add libio-mtsafe flags to the build of strfromf128Gabriel F. T. Gomes2017-06-232-0/+9
| | | | | | | | | | | Similar to the other functions in the strfrom class, strfromf128 calls __printf_fp in order to convert the floating-point value to characters. This requires the value of IO_MTSAFE_IO. Tested for powerpc64le and s390x. * sysdeps/ieee754/float128/Makefile (CFLAGS-strfromf128.c): Add $(libio-mtsafe) to get the value of IO_MTSAFE_IO.
* Prepare the manual to display math errors for float128 functionsGabriel F. T. Gomes2017-06-232-3/+9
| | | | | | | | | | | When float128 support gets enabled for powerpc64le, the ULP errors for float128 functions need to be presented in the manual. This patch adds support for displaying them. Tested for powerpc64le and s390x. * manual/libm-err-tab.pl (@all_floats, %suffices, parse_ulps): Enable generation of float128 entries on the error table.
* Include libc-header-start.h in include/float.hGabriel F. T. Gomes2017-06-232-0/+8
| | | | | | | | | | | The file include/float.h uses the macro __GLIBC_USE to test for TS 18661-3 support. Such macro is provided by bits/libc-header-start.h, so include it to get the definition. Tested for powerpc64le and s390x. * include/float.h: Include libc-header-start.h to get the definition of __GLIBC_USE.
* Optimized version of powf()Paul Clarke2017-06-232-101/+75
| | | | | | | | | Most significant changes are code simplification and use of doubles for intermediate values. Also, some rearrangement to move early non-dependent code later, out of the faster paths. * sysdeps/ieee754/flt-32/e_powf.c: Optimized implementation utilizing rearranged code and doubles float types.
* powerpc: Fix sinf() IFUNC fallback.Rogerio A. Cardoso2017-06-232-1/+6
| | | | | | | | sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf-ppc64.c should fall back to sysdeps/powerpc/fpu/s_sinf.c not to sysdeps/ieee754/flt-32/s_sinf.c. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_sinf-ppc64.c: Change s_sinf.c from sysdeps/ieee754/flt-32/ to sysdeps/powerpc/fpu/.
* powerpc: fix sysconf support for cache geometriesPaul Clarke2017-06-232-29/+13
| | | | | | | | | Commit cdfbe5037f2f67bf5f560b73732b69d0fabe2314 added sysconf support for cache geometries on powerpc, but mishandled errno. For valid input parameters, sysconf() should not set errno. * sysdeps/unix/sysv/linux/powerpc/sysconf.c: Remove references to errno, and simplify remaining related code.
* powerpc: Update AT_HWCAP[2] bitsTulio Magno Quites Machado Filho2017-06-233-1/+11
| | | | | | | | | | | | | | Linux commit ID a4700a26107241cc7b9ac8528b2c6714ff99983d reserved 2 more bits for the instructions darn (Deliver a Random Number) and scv (System Call Vectored). Linux commit ID 6997e57d693b07289694239e52a10d2f02c3a46f reserved another bit for internal usage. * sysdeps/powerpc/bits/hwcap.h: Add PPC_FEATURE2_DARN and PPC_FEATURE2_SCV. * sysdeps/powerpc/dl-procinfo.c (_dl_powerpc_cap_flags): Add scv and darn.
* powerpc: refactor strrchr IFUNCRajalakshmi Srinivasaraghavan2017-06-233-19/+16
| | | | | | As done in commit 6d15a5c2e9450a1e926d5b4991759e1cfa50fccf clean up IFUNC implementation for power8 in order to remove unneeded macro definitions.
* powerpc: Add optimized version of [l]lroundfRajalakshmi Srinivasaraghavan2017-06-2310-1/+120
| | | | | This patch makes use of optimized double version of llround for single precision as both the versions return [long] long type.
* Support _Float128 in ldbl-96 bits/iscanonical.h.Joseph Myers2017-06-222-0/+6
| | | | | | | | | | This patch adds _Float128 support to the ldbl-96 bits/iscanonical.h, as needed for x86_64 / x86 / ia64 support of _Float128. Tested for x86_64 (in conjunction with float128 patches). * sysdeps/ieee754/ldbl-96/bits/iscanonical.h [__HAVE_DISTINCT_FLOAT128] (__iscanonicalf128): New macro.
* Support _Float128 in math-tests.h.Joseph Myers2017-06-222-12/+39
| | | | | | | | | | | | | | | | | | | | | | This patch makes math-tests.h, as used to describe support of given floating-point types for sNaNs, rounding modes and exceptions, handle distinguishing _Float128 from long double. This is needed for x86_64, where if building with GCC 6 or earlier there is no __builtin_nansq, so no way to get a signaling NaN of _Float128 type, so associated tests cannot be run (although glibc itself works fine, as there is never any need to create such an sNaN with a built-in function inside glibc). Tested for x86_64 (in conjunction with float128 patches). * sysdeps/generic/math-tests.h: Include <bits/floatn.h>. (MATH_TESTS_TG): New macro. (SNAN_TESTS_float128): Likewise. (ROUNDING_TESTS_float128): Likewise. (EXCEPTION_TESTS_float128): Likewise. (SNAN_TESTS): Define using MATH_TESTS_TG. (ROUNDING_TESTS): Likewise. (EXCEPTION_TESTS): Likewise.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-10-05 15:31:20 +0000