From patchwork Wed Jun 25 22:24:44 2014 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Richard Henderson X-Patchwork-Id: 364196 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Received: from sourceware.org (server1.sourceware.org [209.132.180.131]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id D1AA51400B5 for ; Thu, 26 Jun 2014 08:25:48 +1000 (EST) DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; q=dns; s=default; b=PNIpIZ6nIGpXSBFthTKdKi7+9Glvp1o HINKBEWHOm8aSbXExiz3xyYA4iz6lAAVVNlcdXBbjyITSkClxhphxKHVg3JXpoym TduU43t1jSGKbZ90mnISCPJm5HBGOf7GNJEsFOZwJ/7R9L/UCgCUul2ME+naDBzk 4gKReI/flpY4= DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id :list-unsubscribe:list-subscribe:list-archive:list-post :list-help:sender:from:to:cc:subject:date:message-id:in-reply-to :references; s=default; bh=tcRHYMWHc8XBtcRufpG1eLUKiC0=; b=gi/eX k3p8ihvSVrRh8/N8bVFNyk1kKVnWKDh9S5RWNyKepQQqwhxwczM6zT+tsJHwLvXk YYL91Mj3orku6vGLDFL+lhsfV8angYed44PdVw5G2yepZUe2kI1MtHW1oKf52RbR jSuBOZRqVMq0PzEjwkWygBJyNkD9dEbBHZvYro= Received: (qmail 17240 invoked by alias); 25 Jun 2014 22:25:09 -0000 Mailing-List: contact libc-alpha-help@sourceware.org; run by ezmlm Precedence: bulk List-Id: List-Unsubscribe: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: libc-alpha-owner@sourceware.org Delivered-To: mailing list libc-alpha@sourceware.org Received: (qmail 17135 invoked by uid 89); 25 Jun 2014 22:25:08 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.1 required=5.0 tests=AWL, BAYES_50, FREEMAIL_ENVFROM_END_DIGIT, FREEMAIL_FROM, RCVD_IN_DNSWL_LOW, SPF_PASS autolearn=ham version=3.3.2 X-HELO: mail-qa0-f54.google.com X-Received: by 10.140.85.102 with SMTP id m93mr15847971qgd.26.1403735101900; Wed, 25 Jun 2014 15:25:01 -0700 (PDT) From: Richard Henderson To: libc-alpha@sourceware.org Cc: azanella@linux.vnet.ibm.com, davem@davemloft.net, marcus.shawcroft@arm.com Subject: [PATCH 4/6] Remove HP_TIMING_DIFF_INIT and dl_hp_timing_overhead Date: Wed, 25 Jun 2014 15:24:44 -0700 Message-Id: <1403735086-21797-5-git-send-email-rth@twiddle.net> In-Reply-To: <1403735086-21797-1-git-send-email-rth@twiddle.net> References: <1403735086-21797-1-git-send-email-rth@twiddle.net> Without HP_TIMING_ACCUM, dl_hp_timing_overhead is write-only. If we remove it, there's no point in HP_TIMING_DIFF_INIT either. * benchtests/bench-string.h (_dl_hp_timing_overhead): Remove. * benchtests/bench-timing.h (_dl_hp_timing_overhead): Remove. (TIMING_INIT): Remove call to HP_TIMING_DIFF_INIT. * elf/rtld.c (_dl_start_final): Likewise. * sysdeps/generic/ldsodefs.h (_dl_hp_timing_overhead): Remove. * sysdeps/alpha/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/generic/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/i386/i686/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/ia64/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/powerpc/powerpc32/power4/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/powerpc/powerpc64/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/sparc/sparc32/sparcv9/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/sparc/sparc64/hp-timing.h (HP_TIMING_DIFF_INIT): Remove. * sysdeps/i386/i686/hp-timing.c: Remove file. * sysdeps/x86_64/hp-timing.c: Remove file. * sysdeps/ia64/hp-timing.c: Remove file. * sysdeps/powerpc/powerpc32/power4/hp-timing.c: Remove file. * sysdeps/powerpc/powerpc64/hp-timing.c: Remove file. * sysdeps/sparc/sparc32/sparcv9/hp-timing.c: Remove file. * sysdeps/sparc/sparc64/hp-timing.c: Remove file. * sysdeps/i386/i686/Makefile [csu]: Remove section. * sysdeps/powerpc/powerpc64/Makefile [csu]: Remove section. * sysdeps/sparc/sparc32/sparcv9/Makefile [csu]: Remove section. * sysdeps/sparc/sparc64/Makefile [csu]: Remove section. * sysdeps/ia64/Makefile [csu] (sysdep_routines): Remove. [csu] (elide-routines.os): Remove. * sysdeps/x86_64/Makefile [csu] (sysdep_routines): Remove. [csu] (elide-routines.os): Remove. --- benchtests/bench-string.h | 2 -- benchtests/bench-timing.h | 7 +------ elf/rtld.c | 3 --- sysdeps/alpha/hp-timing.h | 6 ------ sysdeps/generic/hp-timing.h | 4 ---- sysdeps/generic/ldsodefs.h | 5 ----- sysdeps/i386/i686/Makefile | 5 ----- sysdeps/i386/i686/hp-timing.c | 23 ----------------------- sysdeps/i386/i686/hp-timing.h | 22 ---------------------- sysdeps/ia64/Makefile | 2 -- sysdeps/ia64/hp-timing.c | 23 ----------------------- sysdeps/ia64/hp-timing.h | 19 ------------------- sysdeps/powerpc/powerpc32/power4/hp-timing.c | 24 ------------------------ sysdeps/powerpc/powerpc32/power4/hp-timing.h | 24 ------------------------ sysdeps/powerpc/powerpc64/Makefile | 5 ----- sysdeps/powerpc/powerpc64/hp-timing.c | 24 ------------------------ sysdeps/powerpc/powerpc64/hp-timing.h | 23 ----------------------- sysdeps/sparc/sparc32/sparcv9/Makefile | 5 ----- sysdeps/sparc/sparc32/sparcv9/hp-timing.c | 23 ----------------------- sysdeps/sparc/sparc32/sparcv9/hp-timing.h | 15 --------------- sysdeps/sparc/sparc64/Makefile | 5 ----- sysdeps/sparc/sparc64/hp-timing.c | 23 ----------------------- sysdeps/sparc/sparc64/hp-timing.h | 15 --------------- sysdeps/x86_64/Makefile | 2 -- sysdeps/x86_64/hp-timing.c | 2 -- 25 files changed, 1 insertion(+), 310 deletions(-) delete mode 100644 sysdeps/i386/i686/hp-timing.c delete mode 100644 sysdeps/ia64/hp-timing.c delete mode 100644 sysdeps/powerpc/powerpc32/power4/hp-timing.c delete mode 100644 sysdeps/powerpc/powerpc64/hp-timing.c delete mode 100644 sysdeps/sparc/sparc32/sparcv9/hp-timing.c delete mode 100644 sysdeps/sparc/sparc64/hp-timing.c delete mode 100644 sysdeps/x86_64/hp-timing.c diff --git a/benchtests/bench-string.h b/benchtests/bench-string.h index 2609680..bdb927f 100644 --- a/benchtests/bench-string.h +++ b/benchtests/bench-string.h @@ -69,8 +69,6 @@ int ret, do_srandom; unsigned int seed; size_t page_size; -hp_timing_t _dl_hp_timing_overhead; - # ifndef ITERATIONS size_t iterations = 100000; # define ITERATIONS_OPTIONS \ diff --git a/benchtests/bench-timing.h b/benchtests/bench-timing.h index ccde601..87da32f 100644 --- a/benchtests/bench-timing.h +++ b/benchtests/bench-timing.h @@ -22,16 +22,11 @@ #if HP_TIMING_AVAIL && !defined USE_CLOCK_GETTIME # define GL(x) _##x # define GLRO(x) _##x -hp_timing_t _dl_hp_timing_overhead; typedef hp_timing_t timing_t; # define TIMING_TYPE "hp_timing" -# define TIMING_INIT(res) \ -({ \ - HP_TIMING_DIFF_INIT(); \ - (res) = 1; \ -}) +# define TIMING_INIT(res) ({ (res) = 1; }) # define TIMING_NOW(var) HP_TIMING_NOW (var) # define TIMING_DIFF(diff, start, end) HP_TIMING_DIFF ((diff), (start), (end)) diff --git a/elf/rtld.c b/elf/rtld.c index 71cc0db..8239269 100644 --- a/elf/rtld.c +++ b/elf/rtld.c @@ -279,9 +279,6 @@ _dl_start_final (void *arg, struct dl_start_final_info *info) else start_time = info->start_time; #endif - - /* Initialize the timing functions. */ - HP_TIMING_DIFF_INIT (); } /* Transfer data about ourselves to the permanent link_map structure. */ diff --git a/sysdeps/alpha/hp-timing.h b/sysdeps/alpha/hp-timing.h index 71322f9..9745e53 100644 --- a/sysdeps/alpha/hp-timing.h +++ b/sysdeps/alpha/hp-timing.h @@ -45,9 +45,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -80,9 +77,6 @@ typedef unsigned int hp_timing_t; (VAR) = (int) (x_) - (int) (x_ >> 32); \ } while (0) -/* ??? Two rpcc instructions can be scheduled simultaneously. */ -#define HP_TIMING_DIFF_INIT() do { } while (0) - /* It's simple arithmetic for us. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) diff --git a/sysdeps/generic/hp-timing.h b/sysdeps/generic/hp-timing.h index 894ab17..49ddb91 100644 --- a/sysdeps/generic/hp-timing.h +++ b/sysdeps/generic/hp-timing.h @@ -42,9 +42,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -62,7 +59,6 @@ #define HP_TIMING_INLINE (0) typedef int hp_timing_t; #define HP_TIMING_NOW(var) -#define HP_TIMING_DIFF_INIT() #define HP_TIMING_DIFF(Diff, Start, End) #define HP_TIMING_ACCUM_NT(Sum, Diff) #define HP_TIMING_PRINT(Buf, Len, Val) diff --git a/sysdeps/generic/ldsodefs.h b/sysdeps/generic/ldsodefs.h index 96f018d..2acddaa 100644 --- a/sysdeps/generic/ldsodefs.h +++ b/sysdeps/generic/ldsodefs.h @@ -532,11 +532,6 @@ struct rtld_global_ro /* All search directories defined at startup. */ EXTERN struct r_search_path_elem *_dl_init_all_dirs; -#if HP_TIMING_AVAIL || HP_SMALL_TIMING_AVAIL - /* Overhead of a high-precision timing measurement. */ - EXTERN hp_timing_t _dl_hp_timing_overhead; -#endif - #ifdef NEED_DL_SYSINFO /* Syscall handling improvements. This is very specific to x86. */ EXTERN uintptr_t _dl_sysinfo; diff --git a/sysdeps/i386/i686/Makefile b/sysdeps/i386/i686/Makefile index 01c2917..5ce9fc6 100644 --- a/sysdeps/i386/i686/Makefile +++ b/sysdeps/i386/i686/Makefile @@ -1,8 +1,3 @@ -ifeq ($(subdir),csu) -sysdep_routines += hp-timing -elide-routines.os += hp-timing -endif - # So that we can test __m128's alignment stack-align-test-flags += -msse diff --git a/sysdeps/i386/i686/hp-timing.c b/sysdeps/i386/i686/hp-timing.c deleted file mode 100644 index faa6dad..0000000 --- a/sysdeps/i386/i686/hp-timing.c +++ /dev/null @@ -1,23 +0,0 @@ -/* Support for high precision, low overhead timing functions. i686 version. - Copyright (C) 1998-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/i386/i686/hp-timing.h b/sysdeps/i386/i686/hp-timing.h index a4b19c1..12c613e 100644 --- a/sysdeps/i386/i686/hp-timing.h +++ b/sysdeps/i386/i686/hp-timing.h @@ -52,9 +52,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -83,25 +80,6 @@ typedef unsigned long long int hp_timing_t; in accurate clock cycles here so we don't do this. */ #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rdtsc" : "=A" (Var)) -/* Use two 'rdtsc' instructions in a row to find out how long it takes. */ -#define HP_TIMING_DIFF_INIT() \ - do { \ - if (GLRO(dl_hp_timing_overhead) == 0) \ - { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ull; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } \ - } while (0) - /* It's simple arithmetic for us. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) diff --git a/sysdeps/ia64/Makefile b/sysdeps/ia64/Makefile index 2ea937a..09e41f2 100644 --- a/sysdeps/ia64/Makefile +++ b/sysdeps/ia64/Makefile @@ -7,8 +7,6 @@ endif ifeq ($(subdir), csu) CPPFLAGS-start.S = -D__ASSEMBLY__ -sysdep_routines += hp-timing -elide-routines.os += hp-timing ifeq (yes,$(build-shared)) # Compatibility diff --git a/sysdeps/ia64/hp-timing.c b/sysdeps/ia64/hp-timing.c deleted file mode 100644 index 7a661cb..0000000 --- a/sysdeps/ia64/hp-timing.c +++ /dev/null @@ -1,23 +0,0 @@ -/* Support for high precision, low overhead timing functions. IA-64 version. - Copyright (C) 2001-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 2001. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/ia64/hp-timing.h b/sysdeps/ia64/hp-timing.h index ccc49e6..6b49ffc 100644 --- a/sysdeps/ia64/hp-timing.h +++ b/sysdeps/ia64/hp-timing.h @@ -46,9 +46,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -84,22 +81,6 @@ typedef unsigned long int hp_timing_t; while (REPEAT_READ (__itc)); \ Var = __itc; }) -/* Use two 'ar.itc' instructions in a row to find out how long it takes. */ -#define HP_TIMING_DIFF_INIT() \ - do { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ul; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } while (0) - /* It's simple arithmetic for us. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.c b/sysdeps/powerpc/powerpc32/power4/hp-timing.c deleted file mode 100644 index fcf5e45..0000000 --- a/sysdeps/powerpc/powerpc32/power4/hp-timing.c +++ /dev/null @@ -1,24 +0,0 @@ -/* Support for high precision, low overhead timing functions. - powerpc64 version. - Copyright (C) 2005-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/powerpc/powerpc32/power4/hp-timing.h b/sysdeps/powerpc/powerpc32/power4/hp-timing.h index cd296c5..702efac 100644 --- a/sysdeps/powerpc/powerpc32/power4/hp-timing.h +++ b/sysdeps/powerpc/powerpc32/power4/hp-timing.h @@ -45,9 +45,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -88,27 +85,6 @@ typedef unsigned long long int hp_timing_t; Var = ((hp_timing_t) hi << 32) | lo; \ } while (0) - -/* Use two 'mftb' instructions in a row to find out how long it takes. - On current POWER4, POWER5, and 970 processors mftb take ~10 cycles. */ -#define HP_TIMING_DIFF_INIT() \ - do { \ - if (GLRO(dl_hp_timing_overhead) == 0) \ - { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ull; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } \ - } while (0) - /* It's simple arithmetic in 64-bit. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) diff --git a/sysdeps/powerpc/powerpc64/Makefile b/sysdeps/powerpc/powerpc64/Makefile index 171e89b..9d15db0 100644 --- a/sysdeps/powerpc/powerpc64/Makefile +++ b/sysdeps/powerpc/powerpc64/Makefile @@ -35,11 +35,6 @@ CFLAGS-rtld-memmove.os = $(no-special-regs) CFLAGS-rtld-memchr.os = $(no-special-regs) CFLAGS-rtld-strnlen.os = $(no-special-regs) -ifeq ($(subdir),csu) -sysdep_routines += hp-timing -elide-routines.os += hp-timing -endif - ifeq ($(subdir),elf) # help gcc inline asm code from dl-machine.h +cflags += -finline-limit=2000 diff --git a/sysdeps/powerpc/powerpc64/hp-timing.c b/sysdeps/powerpc/powerpc64/hp-timing.c deleted file mode 100644 index fcf5e45..0000000 --- a/sysdeps/powerpc/powerpc64/hp-timing.c +++ /dev/null @@ -1,24 +0,0 @@ -/* Support for high precision, low overhead timing functions. - powerpc64 version. - Copyright (C) 2005-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by Ulrich Drepper , 1998. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/powerpc/powerpc64/hp-timing.h b/sysdeps/powerpc/powerpc64/hp-timing.h index 4cad90a..7241b9b 100644 --- a/sysdeps/powerpc/powerpc64/hp-timing.h +++ b/sysdeps/powerpc/powerpc64/hp-timing.h @@ -45,9 +45,6 @@ - HP_TIMING_NOW: place timestamp for current time in variable given as parameter. - - HP_TIMING_DIFF_INIT: do whatever is necessary to be able to use the - HP_TIMING_DIFF macro. - - HP_TIMING_DIFF: compute difference between two times and store it in a third. Source and destination might overlap. @@ -80,26 +77,6 @@ typedef unsigned long long int hp_timing_t; #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("mftb %0" : "=r" (Var)) #endif -/* Use two 'mftb' instructions in a row to find out how long it takes. - On current POWER4, POWER5, and 970 processors mftb take ~10 cycles. */ -#define HP_TIMING_DIFF_INIT() \ - do { \ - if (GLRO(dl_hp_timing_overhead) == 0) \ - { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ull; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } \ - } while (0) - /* It's simple arithmetic in 64-bit. */ #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) diff --git a/sysdeps/sparc/sparc32/sparcv9/Makefile b/sysdeps/sparc/sparc32/sparcv9/Makefile index 36f889e..925fa4f 100644 --- a/sysdeps/sparc/sparc32/sparcv9/Makefile +++ b/sysdeps/sparc/sparc32/sparcv9/Makefile @@ -1,10 +1,5 @@ sysdep-CFLAGS += -mcpu=ultrasparc -Wa,-Av9a -ifeq ($(subdir),csu) -sysdep_routines += hp-timing -elide-routines.os += hp-timing -endif - ifeq ($(have-as-vis3),yes) ASFLAGS-.o += -Wa,-Av9d ASFLAGS-.os += -Wa,-Av9d diff --git a/sysdeps/sparc/sparc32/sparcv9/hp-timing.c b/sysdeps/sparc/sparc32/sparcv9/hp-timing.c deleted file mode 100644 index 2224099..0000000 --- a/sysdeps/sparc/sparc32/sparcv9/hp-timing.c +++ /dev/null @@ -1,23 +0,0 @@ -/* Support for high precision, low overhead timing functions. sparcv9 version. - Copyright (C) 2001-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David S. Miller , 2001. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/sparc/sparc32/sparcv9/hp-timing.h b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h index c3be1ca..3f63ce6 100644 --- a/sysdeps/sparc/sparc32/sparcv9/hp-timing.h +++ b/sysdeps/sparc/sparc32/sparcv9/hp-timing.h @@ -34,21 +34,6 @@ typedef unsigned long long int hp_timing_t; "srlx %L0, 32, %H0" \ : "=r" (Var)) -#define HP_TIMING_DIFF_INIT() \ - do { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ull; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } while (0) - #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) #define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) diff --git a/sysdeps/sparc/sparc64/Makefile b/sysdeps/sparc/sparc64/Makefile index dd3023d..dfc118c 100644 --- a/sysdeps/sparc/sparc64/Makefile +++ b/sysdeps/sparc/sparc64/Makefile @@ -1,8 +1,3 @@ -ifeq ($(subdir),csu) -sysdep_routines += hp-timing -elide-routines.os += hp-timing -endif - ifeq ($(subdir),string) sysdep_routines += align-cpy endif diff --git a/sysdeps/sparc/sparc64/hp-timing.c b/sysdeps/sparc/sparc64/hp-timing.c deleted file mode 100644 index 0a425ed..0000000 --- a/sysdeps/sparc/sparc64/hp-timing.c +++ /dev/null @@ -1,23 +0,0 @@ -/* Support for high precision, low overhead timing functions. sparc64 version. - Copyright (C) 2001-2014 Free Software Foundation, Inc. - This file is part of the GNU C Library. - Contributed by David S. Miller , 2001. - - The GNU C Library is free software; you can redistribute it and/or - modify it under the terms of the GNU Lesser General Public - License as published by the Free Software Foundation; either - version 2.1 of the License, or (at your option) any later version. - - The GNU C Library is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - Lesser General Public License for more details. - - You should have received a copy of the GNU Lesser General Public - License along with the GNU C Library; if not, see - . */ - -#include - -/* We have to define the variable for the overhead. */ -hp_timing_t _dl_hp_timing_overhead; diff --git a/sysdeps/sparc/sparc64/hp-timing.h b/sysdeps/sparc/sparc64/hp-timing.h index 9e49b78..521f64e 100644 --- a/sysdeps/sparc/sparc64/hp-timing.h +++ b/sysdeps/sparc/sparc64/hp-timing.h @@ -31,21 +31,6 @@ typedef unsigned long int hp_timing_t; #define HP_TIMING_NOW(Var) __asm__ __volatile__ ("rd %%tick, %0" : "=r" (Var)) -#define HP_TIMING_DIFF_INIT() \ - do { \ - int __cnt = 5; \ - GLRO(dl_hp_timing_overhead) = ~0ull; \ - do \ - { \ - hp_timing_t __t1, __t2; \ - HP_TIMING_NOW (__t1); \ - HP_TIMING_NOW (__t2); \ - if (__t2 - __t1 < GLRO(dl_hp_timing_overhead)) \ - GLRO(dl_hp_timing_overhead) = __t2 - __t1; \ - } \ - while (--__cnt > 0); \ - } while (0) - #define HP_TIMING_DIFF(Diff, Start, End) (Diff) = ((End) - (Start)) #define HP_TIMING_ACCUM_NT(Sum, Diff) (Sum) += (Diff) diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile index 58900a5..32b36d5 100644 --- a/sysdeps/x86_64/Makefile +++ b/sysdeps/x86_64/Makefile @@ -2,8 +2,6 @@ long-double-fcts = yes ifeq ($(subdir),csu) -sysdep_routines += hp-timing -elide-routines.os += hp-timing gen-as-const-headers += link-defines.sym endif diff --git a/sysdeps/x86_64/hp-timing.c b/sysdeps/x86_64/hp-timing.c deleted file mode 100644 index 289ca4c..0000000 --- a/sysdeps/x86_64/hp-timing.c +++ /dev/null @@ -1,2 +0,0 @@ -/* We can use the i686 implementation without changes. */ -#include