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* Linux: Add getdents64 system callFlorian Weimer2019-06-0734-5/+161
| | | | | | | | | | | No 32-bit system call wrapper is added because the interface is problematic because it cannot deal with 64-bit inode numbers and 64-bit directory hashes. A future commit will deprecate the undocumented getdirentries and getdirentries64 functions. Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* [powerpc] get_rounding_mode: utilize faster method to get rounding modePaul A. Clarke2019-06-062-3/+59
| | | | | | | | | Add support to use 'mffsl' instruction if compiled for POWER9 (or later). Also, mask the result to avoid bleeding unrelated bits into the result of _FPU_GET_RC(). Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* riscv: Do not use __has_include__Florian Weimer2019-06-061-1/+1
| | | | The user-visible preprocessor construct is called __has_include.
* [powerpc] fegetexcept: utilize function instead of duplicating codePaul A. Clarke2019-06-051-13/+1
| | | | | | | | | | fegetexcept() included code which exactly duplicates the code in fenv_reg_to_exceptions(). Replace with a call to that function. 2019-06-05 Paul A. Clarke <pc@us.ibm.com> * sysdeps/powerpc/fpu/fegetexcept.c (__fegetexcept): Replace code with call to equivalent function.
* Fix iconv buffer handling with IGNORE error handler (bug #18830)Andreas Schwab2019-06-041-3/+3
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* arm: Remove ioperm/iopl/inb/inw/inl/outb/outw/outl supportFlorian Weimer2019-06-013-176/+33
| | | | | | | | Linux only supports the required ISA sysctls on StrongARM devices, which are armv4 and no longer tested during glibc development and probably bit-rotted by this point. (No reported test results, and the last discussion of armv4 support was in the glibc 2.19 release notes.)
* Linux: Add oddly-named arm syscalls to syscall-names.listFlorian Weimer2019-06-011-0/+5
| | | | | | | | | | | | | | | | | <asm/unistd.h> on arm defines the following macros: #define __ARM_NR_breakpoint (__ARM_NR_BASE+1) #define __ARM_NR_cacheflush (__ARM_NR_BASE+2) #define __ARM_NR_usr26 (__ARM_NR_BASE+3) #define __ARM_NR_usr32 (__ARM_NR_BASE+4) #define __ARM_NR_set_tls (__ARM_NR_BASE+5) #define __ARM_NR_get_tls (__ARM_NR_BASE+6) These do not follow the regular __NR_* naming convention and have so far been ignored by the syscall-names.list consistency checks. This commit adds these names to the file, preparing for the availability of these names in the regular __NR_* namespace.
* powerpc: Fix build failures with current GCCGabriel F. T. Gomes2019-05-307-37/+28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Since GCC commit 271500 (svn), also known as the following commit on the git mirror: commit 61edec870f9fdfb5df3fa4e40f28cbaede28a5b1 Author: amodra <amodra@138bc75d-0d04-0410-961f-82ee72b054a4> Date: Wed May 22 04:34:26 2019 +0000 [RS6000] Don't pass -many to the assembler glibc builds are failing when an assembly implementation does not declare the correct '.machine' directive, or when no such directive is declared at all. For example, when a POWER6 instruction is used, but '.machine power6' is not declared, the assembler will fail with an error similar to the following: ../sysdeps/powerpc/powerpc64/power8/strcmp.S: Assembler messages: 24 ../sysdeps/powerpc/powerpc64/power8/strcmp.S:55: Error: unrecognized opcode: `cmpb' This patch adds '.machine powerN' directives where none existed, as well as it updates '.machine power7' directives on POWER8 files, because the minimum binutils version required to build glibc (binutils 2.25) now provides this machine version. It also adds '-many' to the assembler command used to build tst-set_ppr.c. Tested for powerpc, powerpc64, and powerpc64le, as well as with build-many-glibcs.py for powerpc targets. Reviewed-by: Tulio Magno Quites Machado Filho <tuliom@linux.ibm.com>
* Remove unused get_clockfreq filesAdhemerval Zanella2019-05-292-2/+0
| | | | | | | | | | | The patch 6e8ba7fd574f meant to remove the all get_clockfreq.c. This patch removes the missing files for sparcv9 and x86_64. Checked against a build to x86_64-linux-gnu and sparcv9-linux-gnu. * sysdeps/unix/sysv/linux/sparc/sparc32/sparcv9/get_clockfreq.c: Remove file. * sysdeps/unix/sysv/linux/x86_64/get_clockfreq.c: Likewise.
* powerpc: generic nearbyint/nearbyintfAdhemerval Zanella2019-05-287-303/+75
| | | | | | | | | | | | | | This patches consolidates all the powerpc nearbyint{f} implementations on the generic sysdeps/powerpc/fpu/s_nearbyint{f}. * sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add NEARBYINT handling. * sysdeps/powerpc/fpu/s_nearbyint.c: New file. * sysdeps/powerpc/fpu/s_nearbyintf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_nearbyint.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_nearbyintf.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyint.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_nearbyintf.S: Likewise.
* Add F_SEAL_FUTURE_WRITE from Linux 5.1 to bits/fcntl-linux.h.Joseph Myers2019-05-231-0/+2
| | | | | | | | | | This patch adds the new F_SEAL_FUTURE_WRITE constant from Linux 5.1 to bits/fcntl-linux.h. Tested for x86_64. * sysdeps/unix/sysv/linux/bits/fcntl-linux.h [__USE_GNU] (F_SEAL_FUTURE_WRITE): New macro.
* Remove support for PowerPC SPE extension (powerpc*-*-*gnuspe*).Zack Weinberg2019-05-2249-1706/+52
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | GCC 9 dropped support for the SPE extensions to PowerPC, which means powerpc*-*-*gnuspe* configurations are no longer buildable with that compiler. This ISA extension was peculiar to the “e500” line of embedded PowerPC chips, which, as far as I can tell, are no longer being manufactured, so I think we should follow suit. This patch was developed by grepping for “e500”, “__SPE__”, and “__NO_FPRS__”, and may not eliminate every vestige of SPE support. Most uses of __NO_FPRS__ are left alone, as they are relevant to normal embedded PowerPC with soft-float. * sysdeps/powerpc/preconfigure: Error out on powerpc-*-*gnuspe* host type. * scripts/build-many-glibcs.py: Remove powerpc-*-linux-gnuspe and powerpc-*-linux-gnuspe-e500v1 from list of build configurations. * sysdeps/powerpc/powerpc32/e500: Recursively delete. * sysdeps/unix/sysv/linux/powerpc/powerpc32/e500: Recursively delete. * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/context-e500.h: Delete. * sysdeps/powerpc/fpu_control.h: Remove SPE variant. Issue an #error if used with a compiler in SPE-float mode. * sysdeps/powerpc/powerpc32/__longjmp_common.S * sysdeps/powerpc/powerpc32/setjmp_common.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/getcontext-common.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/getcontext.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/setcontext.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/nofpu/swapcontext.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S: Remove code to preserve SPE register state. * sysdeps/unix/sysv/linux/powerpc/elision-lock.c * sysdeps/unix/sysv/linux/powerpc/elision-trylock.c * sysdeps/unix/sysv/linux/powerpc/elision-unlock.c Remove __SPE__ ifndefs.
* sysvipc: Add missing bit of semtimedop s390 consolidationAdhemerval Zanella2019-05-212-0/+6
| | | | | | | | | | | | This patch add the missing SEMTIMEDOP_IPC_ARGS definions on powerpc and sparc ipc_priv.h. Checked on powerpc64le-linux-gnu and with a build for sparc64-linux-gnu. * sysdeps/unix/sysv/linux/powerpc/ipc_priv.h (SEMTIMEDOP_IPC_ARGS): New define. * sysdeps/unix/sysv/linux/sparc/sparc64/ipc_priv.h (SEMTIMEDOP_IPC_ARGS): Likewise.
* sysvipc: Consolidate semtimedop s390Adhemerval Zanella2019-05-204-38/+36
| | | | | | | | | | | | | | | | | | This patch consolidates the s390-32 semtimedop implementation by defining a arch-specific SEMTIMEDOP_IPC_ARGS to rearrange the arguments expected by s390 Linux kABI. The idea is to avoid have multiples semtimedop implementation changes for Linux v5.1 change to enable wire-up sysvipc support. Checked with a s390-linux-gnu and s390x-linux-gnu and checking that resulting semtimedop objects did not change. * sysdeps/unix/sysv/linux/ipc_priv.h (SEMTIMEDOP_IPC_ARGS): New define. * sysdpes/unix/sysv/linux/s390/ipc_priv.h: New file. * sysdeps/unix/sysv/linux/s390/semtimedop.c: Remove file. * sysdeps/unix/sysv/linux/semtimedop.c (semtimedop): Use SEMTIMEDOP_IPC_ARGS for calls with __NR_ipc.
* sysvipc: Fix compat msgctl (BZ#24570)Adhemerval Zanella2019-05-201-1/+1
| | | | | | | | | | | | The __IPC64 flags is meant to be used to enable the new sysv struct format when the architectures supports it (ARCH_WANT_IPC_PARSE_VERSION config flag on Linux kernel). This currently issue only affects alpha. [BZ #24570] * sysdeps/unix/sysv/linux/msgctl.c (__old_msgctl): Remove __IPC_64 usage.
* Update kernel-features.h files for Linux 5.1.Joseph Myers2019-05-163-7/+13
| | | | | | | | | | | | | | | | | | | | Linux 5.1 adds missing syscalls to the syscall table for many Linux kernel architectures. This patch updates the kernel-features.h headers accordingly. __ASSUME_DIRECT_SYSVIPC_SYSCALLS is not updated because of the differences between new and old syscalls described in <https://sourceware.org/ml/libc-alpha/2019-05/msg00235.html>. The statfs64 structure used by alpha matches what the new kernel syscalls use. Tested with build-many-glibcs.py. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__ASSUME_STATFS64): Only undefine if [__LINUX_KERNEL_VERSION < 0x050100]. * sysdeps/unix/sysv/linux/ia64/kernel-features.h (__ASSUME_STATX): Likewise. * sysdeps/unix/sysv/linux/sh/kernel-features.h (__ASSUME_STATX): Likewise.
* nss: Turn __nss_database_lookup into a compatibility symbolFlorian Weimer2019-05-151-3/+3
| | | | | | | | | | | | | The function uses the internal service_user type, so it is not really usable from the outside of glibc. Rename the function to __nss_database_lookup2 for internal use, and change __nss_database_lookup to always indicate failure to the caller. __nss_next already was a compatibility symbol. The new implementation always fails and no longer calls __nss_next2. unscd, the alternative nscd implementation, does not use __nss_database_lookup, so it is not affected by this change.
* Linux: Add the tgkill functionFlorian Weimer2019-05-1432-2/+195
| | | | | | | | | The tgkill function is sometimes used in crash handlers. <bits/signal_ext.h> follows the same approach as <bits/unistd_ext.h> (which was added for the gettid system call wrapper). Reviewed-by: Carlos O'Donell <carlos@redhat.com>
* x86: Remove arch-specific low level lock implementationAdhemerval Zanella2019-05-1411-1026/+114
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the arch-specific x86 assembly implementation for low level locking and consolidate both 64 bits and 32 bits in a single implementation. Different than other architectures, x86 lll_trylock, lll_lock, and lll_unlock implements a single-thread optimization to avoid atomic operation, using cmpxchgl instead. This patch implements by using the new single-thread.h definitions in a generic way, although using the previous semantic. The lll_cond_trylock, lll_cond_lock, and lll_timedlock just use atomic operations plus calls to lll_lock_wait*. For __lll_lock_wait_private and __lll_lock_wait the generic implemtation there is no indication that assembly implementation is required performance-wise. Checked on x86_64-linux-gnu and i686-linux-gnu. * sysdeps/nptl/lowlevellock.h (__lll_trylock): New macro. (lll_trylock): Call __lll_trylock. * sysdeps/unix/sysv/linux/i386/libc-lowlevellock.S: Remove file. * sysdeps/unix/sysv/linux/i386/lll_timedlock_wait.c: Likewise. * sysdeps/unix/sysv/linux/i386/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/i386/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86_64/libc-lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lll_timedlock_wait.c: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/lowlevellock.h: Likewise. * sysdeps/unix/sysv/linux/x86/lowlevellock.h: New file. * sysdeps/unix/sysv/linux/x86_64/cancellation.S: Include lowlevellock-futex.h.
* Assume LLL_LOCK_INITIALIZER is 0Adhemerval Zanella2019-05-141-14/+3
| | | | | | | | | | | | | | | | | Since hppa is not an outlier anymore regarding LLL_LOCK_INITIALIZER value, we can now assume it 0 for all architectures. Checked on a build for all major ABIs. * nptl/nptl-init.c (__pthread_initialize_minimal_internal): Remove initialization for LLL_LOCK_INITIALIZER different than 0. * nptl/old_pthread_cond_broadcast.c (__pthread_cond_broadcast_2_0): Assume LLL_LOCK_INITIALIZER being 0. * nptl/old_pthread_cond_signal.c (__pthread_cond_signal_2_0): Likewise. * nptl/old_pthread_cond_timedwait.c (__pthread_cond_timedwait_2_0): Likewise. * nptl/old_pthread_cond_wait.c (__pthread_cond_wait_2_0): Likewise. * sysdeps/nptl/libc-lockP.h (__libc_lock_define_initialized): Likewise.
* Add single-thread.h headerAdhemerval Zanella2019-05-146-42/+131
| | | | | | | | | | | | | | | | | | | | | | | | | This patch move the single-thread syscall optimization defintions from syscall-cancel.h to new header file single-thread.h and also move the cancellation definitions from pthreadP.h to syscall-cancel.h. The idea is just simplify the inclusion of both syscall-cancel.h and single-thread.h (without the requirement of including all pthreadP.h defintions). No semantic changes expected, checked on a build for all major ABIs. * nptl/pthreadP.h (CANCEL_ASYNC, CANCEL_RESET, LIBC_CANCEL_ASYNC, LIBC_CANCEL_RESET, __libc_enable_asynccancel, __libc_disable_asynccancel, __librt_enable_asynccancel, __libc_disable_asynccancel, __librt_enable_asynccancel, __librt_disable_asynccancel): Move to ... * sysdeps/unix/sysv/linux/sysdep-cancel.h: ... here. (SINGLE_THREAD_P, RTLD_SINGLE_THREAD_P): Move to ... * sysdeps/unix/sysv/linux/single-thread.h: ... here. * sysdeps/generic/single-thread.h: New file. * sysdeps/unix/sysdep.h: Include single-thread.h. * sysdeps/unix/sysv/linux/futex-internal.h: Include sysdep-cancel.h. * sysdeps/unix/sysv/linux/lowlevellock-futex.h: Likewise.
* powerpc: trunc/truncf refactorAdhemerval Zanella2019-05-0932-665/+104
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc trunc{f} implementations on the generic sysdeps/powerpc/fpu/s_trunc{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/trunc_to_integer.h (set_fenv_mode): Add TRUNC handling. (round_mode): Add definition for TRUNC. * sysdeps/powerpc/fpu/s_trunc.c: New file. * sysdeps/powerpc/fpu/s_truncf.c: New file. * sysdeps/powerpc/powerpc32/fpu/s_trunc.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-power5+.c: New file. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_trunc-ppc32.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-power5+.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_truncf-ppc32.c: Likewise. * sysdep/powerpc/powerpc32/power5+/fpu/s_trunc.S: Remove file. * sysdep/powerpc/powerpc32/power5+/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_trunc-power5+, s_trunc-ppc64, s_truncf-power5+, and s_truncf-ppc64. (CFLAGS-s_trunc-power5+.c, CFLAGS-s_truncf-power5+.c): New rule. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_trunc-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_trunc-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_trunc.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_trunc.c: ... here. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_truncf-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_truncf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_truncf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_truncf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_trunc-power5+, s_trunc-ppc64, s_truncf-power5+, and s_truncf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_trunc-power5+.S: Remove file. * sysdep/powerpc/powerpc64/fpu/multiarch/s_trunc-ppc64.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_truncf-power5+.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_truncf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_trunc.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_truncf.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_trunc.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_truncf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: round/roundf refactorAdhemerval Zanella2019-05-0931-704/+121
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc round{f} implementations on the generic sysdeps/powerpc/fpu/s_round{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add ROUND handling. (round_mode): Add definition for ROUND. (round_to_integer_float): Likewise. * sysdeps/powerpc/fpu/s_round.c: New file. * sysdeps/powerpc/fpu/s_roundf.c: New file. * sysdeps/powerpc/powerpc32/fpu/s_round.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-power5+.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-ppc32.S: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-power5+.c: New file. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_round-ppc32.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-power5+.c: Likewise. * sysdep/powerpc/powepc32/power4/fpu/multiarch/s_roundf-ppc32.c: Likewise. * sysdep/powerpc/powerpc32/power5+/fpu/s_round.S: Remove file. * sysdep/powerpc/powerpc32/power5+/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_round-power5+, s_round-ppc64, s_roundf-power5+, and s_roundf-ppc64. (CFLAGS-s_round-power5+.c, CFLAGS-s_roundf-power5+.c): New rule. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_round-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_round-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_round.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_round.c: ... here. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_roundf-power5+.c: New file. * sysdep/powerpc/powercp64/be/fpu/multiarch/s_roundf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_roundf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_roundf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_round-power5+, s_round-ppc64, s_roundf-power5+, and s_roundf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_round-power5+.S: Remove file. * sysdep/powerpc/powerpc64/fpu/multiarch/s_round-ppc64.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_roundf-power5+.S: Likewise. * sysdep/powerpc/powerpc64/fpu/multiarch/s_roundf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_round.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_roundf.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_round.S: Likewise. * sysdep/powerpc/powerpc64/power5+/fpu/s_roundf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: floor/floorf refactorAdhemerval Zanella2019-05-0931-633/+105
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc floor{f} implementations on the generic sysdeps/powerpc/fpu/s_floor{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frim instruction) or a generic implementation which uses FP only operations. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/round_to_integer.h (set_fenv_mode): Add FLOOR option. (round_mode): Add definition for FLOOR. * sysdeps/powerpc/fpu/s_floor.c: New file. * sysdeps/powerpc/fpu/s_floorf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.S: Likewise * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-power5+.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floor-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-power5+.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_floorf-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floor.S: Remove file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_floorf.S: Remove file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/Makefile (libm-sysdep_routines): Add s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. (CFLAGS-s_floor-power5+.c, CFLAGS-s_floorf-power5+.c): New rule. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floor-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floor.c: ... here. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-power5+.c: New file. * sysdep/powerpc/powerpc64/be/fpu/multiarch/s_floorf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_floorf.c: ... here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_floor-power5+, s_floor-ppc64, s_floorf-power5+, and s_floorf-ppc64. * sysdep/powerpc/powerpc64/fpu/multiarch/s_floor-power5+.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floor-ppc64.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-power5+.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_floorf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_floorf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floor.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_floorf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* Update syscall-names.list for Linux 5.1.Joseph Myers2019-05-071-2/+26
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch updates syscall-names.list for Linux 5.1 (which has many new syscalls, mainly but not entirely ones for 64-bit time). Tested with build-many-glibcs.py (before the revert of the move to Linux 5.1 there; verified there were no tst-syscall-list failures). * sysdeps/unix/sysv/linux/syscall-names.list: Update kernel version to 5.1. (clock_adjtime64) New syscall. (clock_getres_time64) Likewise. (clock_gettime64) Likewise. (clock_nanosleep_time64) Likewise. (clock_settime64) Likewise. (futex_time64) Likewise. (io_pgetevents_time64) Likewise. (io_uring_enter) Likewise. (io_uring_register) Likewise. (io_uring_setup) Likewise. (mq_timedreceive_time64) Likewise. (mq_timedsend_time64) Likewise. (pidfd_send_signal) Likewise. (ppoll_time64) Likewise. (pselect6_time64) Likewise. (recvmmsg_time64) Likewise. (rt_sigtimedwait_time64) Likewise. (sched_rr_get_interval_time64) Likewise. (semtimedop_time64) Likewise. (timer_gettime64) Likewise. (timer_settime64) Likewise. (timerfd_gettime64) Likewise. (timerfd_settime64) Likewise. (utimensat_time64) Likewise.
* aarch64: thunderx2 memmove performance improvementsAnton Youdkevitch2019-05-033-362/+216
| | | | | | | | | | | | | | | | | | | | | | | | The performance improvement is about 20%-30% for larger cases and about 1%-5% for smaller cases. Used SIMD load/store instead of GPR for large overlapping forward moves. Reused existing memcpy implementation for smaller or overlapping backward moves. Fixed the existing memcpy implementation to allow it to deal with the overlapping case. Simplified loop tails in the memcpy implementation - use branchless overlapping sequence of fixed length load/stores instead of branching depending on the size. A cleanup/optimization converting str's to stp's. Added __memmove_thunderx2 to the list of the available implementations.
* misc: Add twalk_r functionFlorian Weimer2019-05-0228-0/+28
| | | | | | | | | The twalk function is very difficult to use in a multi-threaded program because there is no way to pass external state to the iterator function. Reviewed-by: Carlos O'Donell <carlos@redhat.com> Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
* Fix -O1 compilation errors with `__ddivl' and `__fdivl' [BZ #19444]Maciej W. Rozycki2019-04-302-0/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Complementing commit 4a06ceea33ec ("sysdeps/ieee754/soft-fp: ignore maybe-uninitialized with -O [BZ #19444]") and commit 27c5e756a2a8 ("sysdeps/ieee754: prevent maybe-uninitialized errors with -O [BZ #19444]") also fix compilation errors observed at -O1 in `__ddivl' and `__fdivl' with GCC 9 and RISC-V targets: In file included from ../soft-fp/soft-fp.h:318, from ../sysdeps/ieee754/soft-fp/s_fdivl.c:27: ../sysdeps/ieee754/soft-fp/s_fdivl.c: In function '__fdivl': ../soft-fp/op-2.h:108:9: error: 'R_f1' may be used uninitialized in this function [-Werror=maybe-uninitialized] 108 | : (X##_f1 << (2*_FP_W_TYPE_SIZE - (N)))) \ | ^ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:14: note: 'R_f1' was declared here 37 | FP_DECL_Q (R); | ^ ../soft-fp/op-common.h:39:3: note: in expansion of macro '_FP_FRAC_DECL_2' 39 | _FP_FRAC_DECL_##wc (X) | ^~~~~~~~~~~~~~ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:3: note: in expansion of macro 'FP_DECL_Q' 37 | FP_DECL_Q (R); | ^~~~~~~~~ ../soft-fp/op-2.h:109:8: error: 'R_f0' may be used uninitialized in this function [-Werror=maybe-uninitialized] 109 | | X##_f0) != 0)); \ | ^ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:14: note: 'R_f0' was declared here 37 | FP_DECL_Q (R); | ^ ../soft-fp/op-common.h:39:3: note: in expansion of macro '_FP_FRAC_DECL_2' 39 | _FP_FRAC_DECL_##wc (X) | ^~~~~~~~~~~~~~ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_fdivl.c:37:3: note: in expansion of macro 'FP_DECL_Q' 37 | FP_DECL_Q (R); | ^~~~~~~~~ In file included from ../soft-fp/soft-fp.h:318, from ../sysdeps/ieee754/soft-fp/s_ddivl.c:31: ../sysdeps/ieee754/soft-fp/s_ddivl.c: In function '__ddivl': ../soft-fp/op-2.h:98:25: error: 'R_f1' may be used uninitialized in this function [-Werror=maybe-uninitialized] 98 | X##_f0 = (X##_f1 << (_FP_W_TYPE_SIZE - (N)) | X##_f0 >> (N) \ | ^~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:14: note: 'R_f1' was declared here 41 | FP_DECL_Q (R); | ^ ../soft-fp/op-2.h:37:36: note: in definition of macro '_FP_FRAC_DECL_2' 37 | _FP_W_TYPE X##_f0 _FP_ZERO_INIT, X##_f1 _FP_ZERO_INIT | ^ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:3: note: in expansion of macro 'FP_DECL_Q' 41 | FP_DECL_Q (R); | ^~~~~~~~~ ../soft-fp/op-2.h:101:17: error: 'R_f0' may be used uninitialized in this function [-Werror=maybe-uninitialized] 101 | : (X##_f0 << (_FP_W_TYPE_SIZE - (N))) != 0)); \ | ^~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:14: note: 'R_f0' was declared here 41 | FP_DECL_Q (R); | ^ ../soft-fp/op-2.h:37:14: note: in definition of macro '_FP_FRAC_DECL_2' 37 | _FP_W_TYPE X##_f0 _FP_ZERO_INIT, X##_f1 _FP_ZERO_INIT | ^ ../soft-fp/quad.h:226:24: note: in expansion of macro '_FP_DECL' 226 | # define FP_DECL_Q(X) _FP_DECL (2, X) | ^~~~~~~~ ../sysdeps/ieee754/soft-fp/s_ddivl.c:41:3: note: in expansion of macro 'FP_DECL_Q' 41 | FP_DECL_Q (R); | ^~~~~~~~~ cc1: all warnings being treated as errors make[2]: *** [.../sysd-rules:587: .../math/s_fdivl.o] Error 1 make[2]: *** Waiting for unfinished jobs.... cc1: all warnings being treated as errors make[2]: *** [.../sysd-rules:587: .../math/s_ddivl.o] Error 1 This comes from cases in _FP_DIV that return a result described as FP_CLS_ZERO or FP_CLS_INF and do not initialize the fractional part, which is then operated on unconditionally in FP_TRUNC_COOKED before being ignored by _FP_PACK_CANONICAL. Clearly at this optimization level GCC cannot guarantee to be able to determine that the fractional part is ultimately unused, so ignore the error as with the earlier commits referred, letting compilation proceed. [BZ #19444] * sysdeps/ieee754/soft-fp/s_ddivl.c (__ddivl): Ignore errors from `-Wmaybe-uninitialized'. * sysdeps/ieee754/soft-fp/s_fdivl.c (__fdivl): Likewise.
* powerpc: ceil/ceilf refactorAdhemerval Zanella2019-04-2933-637/+221
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patches consolidates all the powerpc ceil{f} implementations on the generic sysdeps/powerpc/fpu/s_ceil{f}. The generic implementation uses either the compiler builts for ISA 2.03+ (which generates the frip instruction) or a generic implementation which uses FP only operations. It adds a generic implementation (round_to_integer.h) which is shared with other rounding to integer routines. The resulting code should be similar in term os performance to previous assembly one. The IFUNC organization for powerpc64 is also change to be enabled only for powerpc64 and not for powerpc64le (since minium ISA of 2.08 does not require the fallback generic implementation). Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/fenv_libc.h (__fesetround_inline_nocheck): New function. * sysdeps/powerpc/fpu/round_to_integer.h: New file. * sysdeps/powerpc/fpu/s_ceil.c: Likewise. * sysdeps/powerpc/fpu/s_ceilf.c: Likewise. * sysdeps/powerpc/powerpc32/fpu/s_ceil.S: Remove file. * sysdeps/powerpc/powerpc32/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/Makefile (CFLAGS-s_ceil-power5+.c, CFLAGS-s_ceilf-power5+.c): New rule. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-power5+.S: Remove file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-power5+.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-ppc32.S: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-power5+.c: New file. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceil-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-power5+.c: Likewise. * sysdeps/powerpc/powerpc32/power4/fpu/multiarch/s_ceilf-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceil.S: Remove file. * sysdeps/powerpc/powerpc32/power5+/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/Makefile: New file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil-power5+.c: Likewise. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceil.c: ... here. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf-power5+.c: New file. * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf.c: Move to ... * sysdeps/powerpc/powerpc64/be/fpu/multiarch/s_ceilf.c: ... * here. * sysdeps/powerpc/powerpc64/fpu/multiarch/Makefile (libm-sysdep_routines): Remove s_ceil-power5+, s_ceil-ppc64, s_ceilf-power5+, and s_ceilf-ppc64. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil-power5+.S: Remove file. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceil-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf-power5+.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/multiarch/s_ceilf-ppc64.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/fpu/s_ceilf.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceil.S: Likewise. * sysdeps/powerpc/powerpc64/power5+/fpu/s_ceilf.S: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* powerpc: Remove power4 mpa optimizationAdhemerval Zanella2019-04-293-275/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the POWER4 optimized mpa optimization used currently on all powerpc targets. In fact for newer chips, GCC generates *worse* code than generic implementation as below. One possibilty would to add ifunc variants for the mpa routines (as x86_64), but it will add complexity only for older chips (and one would need to check if power5, power5+, and power6 do benefict from this optimization), and only for specific implementation (since most used one such as sin, cos, exp, pow where optimized to avoid calling the slow multiprecision path). * POWER9 patched $ ./testrun.sh benchtests/bench-atan "atan": { "": { "duration": 5.12565e+09, "iterations": 1.552e+08, "max": 100.552, "min": 7.799, "mean": 33.0261 }, "144bits": { "duration": 5.12745e+09, "iterations": 825000, "max": 7517.17, "min": 6186.3, "mean": 6215.09 } } $ ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.21741e+09, "iterations": 1.269e+08, "max": 191.738, "min": 7.931, "mean": 41.1144 }, "slow": { "duration": 5.25999e+09, "iterations": 198000, "max": 26681.7, "min": 26463.6, "mean": 26565.6 } } * POWER9 master $ ./testrun.sh benchtests/bench-atan "atan": { "": { "duration": 5.12815e+09, "iterations": 1.552e+08, "max": 134.788, "min": 7.803, "mean": 33.0422 }, "144bits": { "duration": 5.1209e+09, "iterations": 447000, "max": 11615.8, "min": 11301.8, "mean": 11456.2 } } $ ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.22272e+09, "iterations": 1.269e+08, "max": 115.981, "min": 7.931, "mean": 41.1562 }, "slow": { "duration": 5.28723e+09, "iterations": 96000, "max": 55434.1, "min": 54820.6, "mean": 55075.3 } } * POWER8 patched $ taskset -c 16 ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.16398e+09, "iterations": 9.99e+07, "max": 174.408, "min": 8.645, "mean": 51.6915 }, "slow": { "duration": 5.16982e+09, "iterations": 96000, "max": 54830.5, "min": 53703.8, "mean": 53852.3 } } * POWER8 master $ taskset -c 16 ./testrun.sh benchtests/bench-acos "acos": { "": { "duration": 5.17019e+09, "iterations": 9.99e+07, "max": 186.127, "min": 8.633, "mean": 51.7537 }, "slow": { "duration": 5.34225e+09, "iterations": 90000, "max": 60353.2, "min": 59155.3, "mean": 59358.4 } } * POWER7 patched $ taskset -c 16 benchtests/bench-asin "asin": { "": { "duration": 5.15559e+09, "iterations": 6.5e+07, "max": 193.335, "min": 12.227, "mean": 79.3168 }, "slow": { "duration": 5.20538e+09, "iterations": 80000, "max": 65705.2, "min": 64299.4, "mean": 65067.3 } } * POWER7 master $ taskset -c 16 benchtests/bench-asin "asin": { "": { "duration": 5.15446e+09, "iterations": 6.5e+07, "max": 184.575, "min": 12.226, "mean": 79.2994 }, "slow": { "duration": 5.20616e+09, "iterations": 80000, "max": 65705.1, "min": 64336.6, "mean": 65076.9 } } Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/power4/fpu/Makefile: Remove file. * sysdeps/powerpc/power4/fpu/mpa-arch.h: Likewise. * sysdeps/powerpc/power4/fpu/mpa.c: Likewise. Reviewed-by: Gabriel F. T. Gomes <gabriel@inconstante.eti.br>
* <semaphore.h>: Add nonnull attributesYann Droneaud2019-04-291-10/+13
| | | | | | | | | | | | | | Except the following functions, NPTL implementation assume sem_t argument (or other arguments) are not NULL, so they would benefit from having the nonnull attribute. - sem_close(): can cope with a NULL sem_t and return -1 with error EINVAL; - sem_destroy(): does nothing at all * sysdeps/pthread/semaphore.h (sem_init): Add __nonnull attribute. (sem_destroy, sem_open, sem_close, sem_unlink): Likewise. (sem_wait, sem_timedwait, sem_trywait, sem_post): Likewise. (sem_getvalue): Likewise.
* riscv: remove DL_RO_DYN_SECTIONDavid Abdurachmanov2019-04-251-4/+0
| | | | | | | | | | | | | | While working on enabling D front-end (GDC) in GCC we noticed that druntime was segfaulting if it is linked dynamically. This was tracked to DL_RO_DYN_SECTION. DL_RO_DYN_SECTION lines seem to be copied from MIPS file (which is the only user of it), but the comment doesn't apply to RISC-V. There is no such requirement in RISC-V ABI. [BZ#24484] * sysdeps/riscv/ldsodefs.h: Remove DL_RO_DYN_SECTION as it is not required by RISC-V ABI.
* powerpc: Fix format issue from 3a16dd780eeba602Adhemerval Zanella2019-04-172-2/+4
| | | | | * sysdeps/powerpc/fpu/s_fma.c: Fix format. * sysdeps/powerpc/fpu/s_fmaf.c: Likewise.
* powerpc: fma using builtinsAdhemerval Zanella2019-04-172-14/+10
| | | | | | | | | | | | | | | This patch just refactor the assembly implementation to use compiler builtins instead. Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/s_fma.S: Remove file. * sysdeps/powerpc/fpu/s_fmaf.S: Likewise. * sysdeps/powerpc/fpu/s_fma.c: New file. * sysdeps/powerpc/fpu/s_fmaf.c: Likewise.
* powerpc: Use generic fabs{f} implementationsAdhemerval Zanella2019-04-172-34/+0
| | | | | | | | | | | | | Since be2e25bbd78f9fdf the generic ieee754 implementation uses compiler builtin which generates fabs{f} for all supported targets. Checked on powerpc-linux-gnu (built without --with-cpu, with --with-cpu=power4 and with --with-cpu=power5+ and --disable-multi-arch), powerpc64-linux-gnu (built without --with-cp and with --with-cpu=power5+ and --disable-multi-arch). * sysdeps/powerpc/fpu/s_fabs.S: Remove file. * sysdeps/powerpc/fpu/s_fabsf.S: Likewise.
* mips: Remove rt_sigreturn usage on context functionAdhemerval Zanella2019-04-174-53/+0
| | | | | | | | | | | | | | | | | | Similar to powerpc, mips also issues rt_sigreturn for setcontext case the v0 value saved is not the one set by setcontext or makecontext. As for powerpc, it is intention is no really supported since setcontext is not async-signal-safe. Checked the context tests on mips64-linux-gnu and mips-linux-gnu. * sysdeps/unix/sysv/linux/mips/getcontext.S (__getcontext): Remove the magic flag store. * sysdeps/unix/sysv/linux/mips/makecontext.S (__makecontext): Likewise. * sysdeps/unix/sysv/linux/mips/swapcontext.S (__swapcontext): Likewise. * sysdeps/unix/sysv/linux/mips/setcontext.S (__setcontext): Remove rt_sigreturn call.
* powerpc: Remove rt_sigreturn usage on context functionAdhemerval Zanella2019-04-174-162/+0
| | | | | | | | | | | | | | | | | | As described in a recent glibc thread [1], the rt_sigreturn syscall on setcontext and swapcontext is not used on default use and its intention is no really supported since neither setcontext nor swapcontext are async-signal-safe. Checked on powerpc64-linux-gnu and powerpc-linux-gnu. * sysdeps/unix/sysv/linux/powerpc/powerpc32/setcontext-common.S: Remove rt_sigreturn call. * sysdeps/unix/sysv/linux/powerpc/powerpc32/swapcontext-common.S: Likewise. * sysdeps/unix/sysv/linux/powerpc/powerpc64/setcontext.S: Likewie. * sysdeps/unix/sysv/linux/powerpc/powerpc64/swapcontext.S: Likewise. [1] https://sourceware.org/ml/libc-alpha/2019-02/msg00367.html
* resolv: Remove support for RES_USE_INET6 and the inet6 optionFlorian Weimer2019-04-081-11/+0
| | | | | | | | | This functionality was deprecated in glibc 2.25. This commit only includes the core changes to remove the functionality. It does not remove the RES_USE_INET6 handling in the individual NSS service modules and the res_use_inet6 function. These changes will happen in future commits.
* aarch64: thunderx2 memcpy implementation cleanup and streamliningAnton Youdkevitch2019-04-051-21/+22
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | Here is the updated patch for improving the long unaligned code path (the one using "ext" instruction). 1. Always taken conditional branch at the beginning is removed. 2. Epilogue code is placed after the end of the loop to reduce the number of branches. 3. The redundant "mov" instructions inside the loop are gone due to the changed order of the registers in the "ext" instructions inside the loop, the prologue has additional "ext" instruction. 4.Updating count in the prologue was hoisted out as it is the same update for each prologue. 5. Invariant code of the loop epilogue was hoisted out. 6. As the current size of the ext chunk is exactly 16 instructions long "nop" was added at the beginning of the code sequence so that the loop entry for all the chunks be aligned. * sysdeps/aarch64/multiarch/memcpy_thunderx2.S: Cleanup branching and remove redundant code.
* powerpc: Use generic wcsrchr optimizationAdhemerval Zanella2019-04-0415-320/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the power6 wcsrchr optimization and uses generic implementation instead. Currently, both power6 and power7 IFUNC variant resulting binary are essentially the same and the generic implementation with unrolling loop set to 8 also results in similar performance. Checked on powerpc64-linux-gnu. * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcsrchr.c): New rule. * sysdeps/powerpc/power6/wcsrchr.c: Remove file. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power6.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-power7.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power6.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-power7.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc64/power6/wcsrchr.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcsrchr-power6 and wcsrchr-power7. (CFLAGS-wcsrchr-power7.c, CFLAGS-wcsrchr-power6.c): Remove rule. * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: Remove wcsrchr optimizations. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
* powerpc: Use generic wcschr optimizationAdhemerval Zanella2019-04-0415-362/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the power6 wcschr optimization and uses generic implementation instead. Currently, both power6 and power7 IFUNC variant resulting binary are essentially the same and the generic implementation with unrolling loop set to 8 also results in similar performance. Checked on powerpc64-linux-gnu. * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcschr.c): New rule. * sysdeps/powerpc/power6/wcschr.c: Remove file. * sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-power6.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-power7.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcschr-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcschr.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcschr-power6.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcschr-power7.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcschr-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcschr.c: Likewise. * sysdeps/powerpc/powerpc64/power6/wcschr.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcschr-power6 and wcschr-power7. (CFLAGS-wcschr-power7.c, CFLAGS-wcschr-power6.c): Remove rule. * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: Remove wcschr optimizations. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
* powerpc: Use generic wcscpy optimizationAdhemerval Zanella2019-04-0415-337/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch removes the power6 wcscpy optimization and uses generic implementation instead. Currently, both power6 and power7 IFUNC variant resulting binary are essentially the same and the generic implementation with unrolling loop set to 8 also results in similar performance. Checked on powerpc64-linux-gnu. * sysdeps/powerpc/Makefile [$(subdir) == wcsmbs] (CFLAGS-wcscpy.c): New rule. * sysdeps/powerpc/power6/wcscpy.c: Remove file. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power6.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-power7.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy-ppc32.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power6.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-power7.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy-ppc64.c: Likewise. * sysdeps/powerpc/powerpc64/multiarch/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc64/power6/wcscpy.c: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/Makefile [$(subdir) == wcsmbs] (sysdeps_routines): Remove wcscpy-power6 and wcscpy-power7. (CFLAGS-wcscpy-power7.c, CFLAGS-wcscpy-power6.c): Remove rule. * sysdeps/powerpc/powerpc64/multiarch/Makefile: Likewise. * sysdeps/powerpc/powerpc32/power4/multiarch/ifunc-impl-list.c: Remove wcscpy optimizations. * sysdeps/powerpc/powerpc64/multiarch/ifunc-impl-list.c: Likewise.
* alpha: Improve sysdeps/alpha/divqu.S and sysdeps/alpha/remqu.SUros Bizjak2019-04-012-8/+11
| | | | | | | | | | | * sysdeps/alpha/divqu.S (__divqu): Move save of $f0 and excb after conditional branch to DIVBYZERO. Fix unwind info. * sysdeps/alpha/remqu.S (__remqu): Move saves of $f0, $f1, $f2 and excb after conditional branch to $powerof2. Add missing unop instructions and .align directives and reorder instructions to match __divqu. Signed-off-by: Uroš Bizjak <ubizjak@gmail.com>
* alpha: Do not redefine __NR_shmat or __NR_osf_shmatRichard Henderson2019-04-012-3/+7
| | | | | | | | | | | | | | Fixes build using v5.1-rc1 headers. The kernel has cleaned up how these are defined. Previous behavior was to define __NR_osf_shmat as 209 and not define __NR_shmat. Current behavior is to define __NR_shmat as 209 and then define __NR_osf_shmat as __NR_shmat. * sysdeps/unix/sysv/linux/alpha/kernel-features.h (__NR_shmat): Do not redefine. * sysdeps/unix/sysv/linux/alpha/sysdep.h (__NR_osf_shmat): Do not redefine.
* RISC-V: Fix `test' operand error with soft-float ABI being configuredMaciej W. Rozycki2019-03-302-2/+2
| | | | | | | | | | | | | | Fix a: .../sysdeps/unix/sysv/linux/riscv/configure: line 181: test: =: unary operator expected message produced by the RISC-V configure fragment with the soft-float ABI selected, caused by $libc_cv_riscv_float_abi evaluating to nil in the invocation of `test $libc_cv_riscv_float_abi = no'. * sysdeps/unix/sysv/linux/riscv/configure.ac: Quote $libc_cv_riscv_float_abi in `test' invocation. * sysdeps/unix/sysv/linux/riscv/configure: Regenerate.
* [powerpc] Use __builtin_{mffs,mtfsf}Paul A. Clarke2019-03-293-12/+6
| | | | | | | | | | | | | | | | | | | Replace inline asm uses of the "mffs" and "mtfsf" instructions with the analogous GCC builtins. __builtin_mffs and __builtin_mtfsf are both available in GCC 5 and above. Given the minimum GCC level for GLibC is now GCC 6.2, it is safe to use these builtins without restriction. 2019-03-29 Paul A. Clarke <pc@us.ibm.com> * sysdeps/powerpc/fpu/fenv_libc.h (fegetenv_register): Replace inline asm with builtin. * sysdeps/powerpc/powerpc64/le/fpu/sfp-machine.h (FP_INIT_ROUNDMODE): Likewise. * sysdeps/powerpc/fpu/tst-setcontext-fpscr.c (_GET_DI_FPSCR): Likewise. (_GET_SI_FPSCR): Likewise. (_SET_SI_FPSCR): Likewise.
* powerpc: Remove ununsed s_float_bitwise.hAdhemerval Zanella2019-03-251-115/+0
| | | | | | | | | | | This file is not used anywhere since removal of {k,e}_rem_pio2f.c (commit ca3aac57efa89). Checked with a build for powerpc-linux-gnu (with --with-cpu=power4 and --with-cpu=power7), powerpc64-linux-gnu (with --with-cpu=power4 and --with-cpu=power7), and powerpc64le-linux (with --with-cpu=power8). * sysdeps/powerpc/fpu/s_float_bitwise.h: Remove file.
* Add UDP_GRO from Linux 5.0 to netinet/udp.h.Joseph Myers2019-03-251-0/+1
| | | | | | | | This patch adds the new constant UDP_GRO from Linux 5.0 to glibc. Tested for x86_64. * sysdeps/gnu/netinet/udp.h (UDP_GRO): New macro.
* Add generic hp-timing supportWilco Dijkstra2019-03-221-9/+16
| | | | | | | | | | | | | | | | | Add missing generic hp_timing support. It uses clock_gettime (CLOCK_MONOTONIC) which has unspecified starting time, nano-second accuracy, and should faster on architectures that implementes the symbol as vDSO. Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also checked the builds for all afected ABIs. * benchtests/Makefile (USE_CLOCK_GETTIME) Remove. * benchtests/README: Update description. * benchtests/bench-timing.h: Default to hp-timing. * sysdeps/generic/hp-timing.h (HP_TIMING_DIFF, HP_TIMING_ACCUM_NT, HP_TIMING_PRINT): Remove. (HP_TIMING_NOW): Add generic implementation. (hp_timing_t): Change to uint64_t.
* Refactor hp-timing rtld usageAdhemerval Zanella2019-03-229-39/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch refactor how hp-timing is used on loader code for statistics report. The HP_TIMING_AVAIL and HP_SMALL_TIMING_AVAIL are removed and HP_TIMING_INLINE is used instead to check for hp-timing avaliability. For alpha, which only defines HP_SMALL_TIMING_AVAIL, the HP_TIMING_INLINE is set iff for IS_IN(rtld). Checked on aarch64-linux-gnu, x86_64-linux-gnu, and i686-linux-gnu. I also checked the builds for all afected ABIs. * benchtests/bench-timing.h: Replace HP_TIMING_AVAIL with HP_TIMING_INLINE. * nptl/descr.h: Likewise. * elf/rtld.c (RLTD_TIMING_DECLARE, RTLD_TIMING_NOW, RTLD_TIMING_DIFF, RTLD_TIMING_ACCUM_NT, RTLD_TIMING_SET): Define. (dl_start_final_info, _dl_start_final, dl_main, print_statistics): Abstract hp-timing usage with RTLD_* macros. * sysdeps/alpha/hp-timing.h (HP_TIMING_INLINE): Define iff IS_IN(rtld). (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Remove. * sysdeps/generic/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL, HP_TIMING_NONAVAIL): Likewise. * sysdeps/ia64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/powerpc/powerpc32/power4/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/powerpc/powerpc64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/sparc/sparc32/sparcv9/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/sparc/sparc64/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/x86/hp-timing.h (HP_TIMING_AVAIL, HP_SMALL_TIMING_AVAIL): Likewise. * sysdeps/generic/hp-timing-common.h: Update comment with HP_TIMING_AVAIL removal.
generated by cgit-pink 1.4.1 (git 2.36.1) at 2024-07-14 02:33:35 +0000