From patchwork Fri Feb 16 19:17:39 2018 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arnaldo Carvalho de Melo X-Patchwork-Id: 874634 Return-Path: X-Original-To: patchwork-incoming@ozlabs.org Delivered-To: patchwork-incoming@ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [103.22.144.68]) (using TLSv1.2 with cipher ADH-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 3zjjtk5P9cz9sDB for ; Sat, 17 Feb 2018 06:31:26 +1100 (AEDT) Received: from bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 3zjjtk3lfXzF1Ft for ; Sat, 17 Feb 2018 06:31:26 +1100 (AEDT) X-Original-To: linuxppc-dev@lists.ozlabs.org Delivered-To: linuxppc-dev@lists.ozlabs.org Authentication-Results: ozlabs.org; spf=none (mailfrom) smtp.mailfrom=kernel.org (client-ip=198.145.29.99; helo=mail.kernel.org; envelope-from=acme@kernel.org; receiver=) Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 3zjjdW3HdgzF1Qb for ; Sat, 17 Feb 2018 06:19:59 +1100 (AEDT) Received: from jouet.infradead.org (unknown [179.97.41.186]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id B9A35217D2; Fri, 16 Feb 2018 19:19:54 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B9A35217D2 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=kernel.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=acme@kernel.org From: Arnaldo Carvalho de Melo To: Ingo Molnar Subject: [PATCH 34/41] perf powerpc: Generate system call table from asm/unistd.h Date: Fri, 16 Feb 2018 16:17:39 -0300 Message-Id: <20180216191746.11095-35-acme@kernel.org> X-Mailer: git-send-email 2.14.3 In-Reply-To: <20180216191746.11095-1-acme@kernel.org> References: <20180216191746.11095-1-acme@kernel.org> X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.26 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnaldo Carvalho de Melo , linuxppc-dev@lists.ozlabs.org, Alexander Shishkin , Thomas Richter , linux-kernel@vger.kernel.org, Ravi Bangoria , linux-perf-users@vger.kernel.org, Hendrik Brueckner , Namhyung Kim , Jiri Olsa Errors-To: linuxppc-dev-bounces+patchwork-incoming=ozlabs.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Ravi Bangoria This should speed up accessing new system calls introduced with the kernel rather than waiting for libaudit updates to include them. Signed-off-by: Ravi Bangoria Cc: Alexander Shishkin Cc: Hendrik Brueckner Cc: Jiri Olsa Cc: Michael Ellerman Cc: Namhyung Kim Cc: Thomas Richter Cc: linuxppc-dev@lists.ozlabs.org Link: http://lkml.kernel.org/r/20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com [ Made it generate syscall_32.c as well to fix the build on 32-bit ppc ] Signed-off-by: Arnaldo Carvalho de Melo --- tools/perf/arch/powerpc/Makefile | 25 +++++++++++++++ .../perf/arch/powerpc/entry/syscalls/mksyscalltbl | 37 ++++++++++++++++++++++ 2 files changed, 62 insertions(+) create mode 100755 tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile index 42dab7c8f508..a111239df182 100644 --- a/tools/perf/arch/powerpc/Makefile +++ b/tools/perf/arch/powerpc/Makefile @@ -6,3 +6,28 @@ endif HAVE_KVM_STAT_SUPPORT := 1 PERF_HAVE_ARCH_REGS_QUERY_REGISTER_OFFSET := 1 PERF_HAVE_JITDUMP := 1 + +# +# Syscall table generation for perf +# + +out := $(OUTPUT)arch/powerpc/include/generated/asm +header32 := $(out)/syscalls_32.c +header64 := $(out)/syscalls_64.c +sysdef := $(srctree)/tools/arch/powerpc/include/uapi/asm/unistd.h +sysprf := $(srctree)/tools/perf/arch/powerpc/entry/syscalls/ +systbl := $(sysprf)/mksyscalltbl + +# Create output directory if not already present +_dummy := $(shell [ -d '$(out)' ] || mkdir -p '$(out)') + +$(header64): $(sysdef) $(systbl) + $(Q)$(SHELL) '$(systbl)' '64' '$(CC)' $(sysdef) > $@ + +$(header32): $(sysdef) $(systbl) + $(Q)$(SHELL) '$(systbl)' '32' '$(CC)' $(sysdef) > $@ + +clean:: + $(call QUIET_CLEAN, powerpc) $(RM) $(header32) $(header64) + +archheaders: $(header32) $(header64) diff --git a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl new file mode 100755 index 000000000000..ef52e1dd694b --- /dev/null +++ b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl @@ -0,0 +1,37 @@ +#!/bin/sh +# SPDX-License-Identifier: GPL-2.0 +# +# Generate system call table for perf. Derived from +# s390 script. +# +# Copyright IBM Corp. 2017 +# Author(s): Hendrik Brueckner +# Changed by: Ravi Bangoria + +wordsize=$1 +gcc=$2 +input=$3 + +if ! test -r $input; then + echo "Could not read input file" >&2 + exit 1 +fi + +create_table() +{ + local wordsize=$1 + local max_nr + + echo "static const char *syscalltbl_powerpc_${wordsize}[] = {" + while read sc nr; do + printf '\t[%d] = "%s",\n' $nr $sc + max_nr=$nr + done + echo '};' + echo "#define SYSCALLTBL_POWERPC_${wordsize}_MAX_ID $max_nr" +} + +$gcc -m${wordsize} -E -dM -x c $input \ + |sed -ne 's/^#define __NR_//p' \ + |sort -t' ' -k2 -nu \ + |create_table ${wordsize}