From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751200AbeBQLrW (ORCPT ); Sat, 17 Feb 2018 06:47:22 -0500 Received: from terminus.zytor.com ([198.137.202.136]:46799 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751055AbeBQLrV (ORCPT ); Sat, 17 Feb 2018 06:47:21 -0500 Date: Sat, 17 Feb 2018 03:36:10 -0800 From: tip-bot for Ravi Bangoria Message-ID: Cc: hpa@zytor.com, acme@redhat.com, alexander.shishkin@linux.intel.com, linux-kernel@vger.kernel.org, brueckner@linux.vnet.ibm.com, mpe@ellerman.id.au, ravi.bangoria@linux.vnet.ibm.com, tglx@linutronix.de, mingo@kernel.org, jolsa@redhat.com, tmricht@linux.vnet.ibm.com, namhyung@kernel.org Reply-To: jolsa@redhat.com, tmricht@linux.vnet.ibm.com, namhyung@kernel.org, mpe@ellerman.id.au, tglx@linutronix.de, mingo@kernel.org, ravi.bangoria@linux.vnet.ibm.com, brueckner@linux.vnet.ibm.com, alexander.shishkin@linux.intel.com, linux-kernel@vger.kernel.org, acme@redhat.com, hpa@zytor.com In-Reply-To: <20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com> References: <20180129083417.31240-3-ravi.bangoria@linux.vnet.ibm.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:perf/core] perf powerpc: Generate system call table from asm/unistd.h Git-Commit-ID: 8e2ff72aa35e1a8a53894ae46751a83543338e14 X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: 8e2ff72aa35e1a8a53894ae46751a83543338e14 Gitweb: https://git.kernel.org/tip/8e2ff72aa35e1a8a53894ae46751a83543338e14 Author: Ravi Bangoria AuthorDate: Mon, 29 Jan 2018 14:04:16 +0530 Committer: Arnaldo Carvalho de Melo CommitDate: Fri, 16 Feb 2018 14:55:48 -0300 perf powerpc: Generate system call table from asm/unistd.h 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(+) diff --git a/tools/perf/arch/powerpc/Makefile b/tools/perf/arch/powerpc/Makefile index 42dab7c..a111239 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 0000000..ef52e1d --- /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}