From patchwork Thu Jun 13 11:13:23 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Cristian Marussi X-Patchwork-Id: 10992331 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5D02A18E8 for ; Thu, 13 Jun 2019 15:30:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 4A8C9209CD for ; Thu, 13 Jun 2019 15:30:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 48DB52223E; Thu, 13 Jun 2019 15:30:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.9 required=2.0 tests=BAYES_00,MAILING_LIST_MULTI, RCVD_IN_DNSWL_HI autolearn=unavailable version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id C262B212D5 for ; Thu, 13 Jun 2019 15:30:36 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728722AbfFMPag (ORCPT ); Thu, 13 Jun 2019 11:30:36 -0400 Received: from foss.arm.com ([217.140.110.172]:38058 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728714AbfFMLOT (ORCPT ); Thu, 13 Jun 2019 07:14:19 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id A48EC367; Thu, 13 Jun 2019 04:14:18 -0700 (PDT) Received: from e120937-lin.cambridge.arm.com (e120937-lin.cambridge.arm.com [10.1.197.50]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 361C83F694; Thu, 13 Jun 2019 04:16:01 -0700 (PDT) From: Cristian Marussi To: linux-kselftest@vger.kernel.org, linux-arm-kernel@lists.infradead.org, shuah@kernel.org Cc: dave.martin@arm.com, andreyknvl@google.com Subject: [PATCH 01/13] kselftest: arm64: introduce new boilerplate code Date: Thu, 13 Jun 2019 12:13:23 +0100 Message-Id: <20190613111335.7645-2-cristian.marussi@arm.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20190613111335.7645-1-cristian.marussi@arm.com> References: <20190613111335.7645-1-cristian.marussi@arm.com> Sender: linux-kselftest-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP Added a new arm64-specific empty subsystem amongst TARGETS of KSFT build framework; once populated with testcases, it will be possible to build and invoke the new KSFT TARGETS=arm64 related tests from the toplevel Makefile in the usual ways. Signed-off-by: Cristian Marussi --- tools/testing/selftests/Makefile | 1 + tools/testing/selftests/arm64/Makefile | 51 ++++++++++++++++++++++++++ tools/testing/selftests/arm64/README | 44 ++++++++++++++++++++++ 3 files changed, 96 insertions(+) create mode 100644 tools/testing/selftests/arm64/Makefile create mode 100644 tools/testing/selftests/arm64/README diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile index 9781ca79794a..4ff0b41ead8a 100644 --- a/tools/testing/selftests/Makefile +++ b/tools/testing/selftests/Makefile @@ -1,5 +1,6 @@ # SPDX-License-Identifier: GPL-2.0 TARGETS = android +TARGETS += arm64 TARGETS += bpf TARGETS += breakpoints TARGETS += capabilities diff --git a/tools/testing/selftests/arm64/Makefile b/tools/testing/selftests/arm64/Makefile new file mode 100644 index 000000000000..03a0d4f71218 --- /dev/null +++ b/tools/testing/selftests/arm64/Makefile @@ -0,0 +1,51 @@ +# SPDX-License-Identifier: GPL-2.0 +# Copyright (C) 2019 ARM Limited + +# When ARCH not overridden for crosscompiling, lookup machine +ARCH ?= $(shell uname -m) +ARCH := $(shell echo $(ARCH) | sed -e s/aarch64/arm64/) + +ifeq ("x$(ARCH)", "xarm64") +SUBDIRS := +else +SUBDIRS := +endif + +CFLAGS := -Wall -O2 -g + +export CC +export CFLAGS + +all: + @for DIR in $(SUBDIRS); do \ + BUILD_TARGET=$(OUTPUT)/$$DIR; \ + mkdir -p $$BUILD_TARGET; \ + make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \ + done + +install: all + @for DIR in $(SUBDIRS); do \ + BUILD_TARGET=$(OUTPUT)/$$DIR; \ + make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \ + done + +run_tests: all + @for DIR in $(SUBDIRS); do \ + BUILD_TARGET=$(OUTPUT)/$$DIR; \ + make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \ + done + +# Avoid any output on non arm64 on emit_tests +emit_tests: all + @for DIR in $(SUBDIRS); do \ + BUILD_TARGET=$(OUTPUT)/$$DIR; \ + make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \ + done + +clean: + @for DIR in $(SUBDIRS); do \ + BUILD_TARGET=$(OUTPUT)/$$DIR; \ + make OUTPUT=$$BUILD_TARGET -C $$DIR $@; \ + done + +.PHONY: all clean install run_tests emit_tests diff --git a/tools/testing/selftests/arm64/README b/tools/testing/selftests/arm64/README new file mode 100644 index 000000000000..d5aa7a2eda78 --- /dev/null +++ b/tools/testing/selftests/arm64/README @@ -0,0 +1,44 @@ +KSelfTest ARM64 +=============== + +- These tests are arm64 specific and so not built or run but just skipped + completely when env-variable ARCH is found to be different than 'arm64' + and `uname -m` reports other than 'aarch64'. + +- Holding true the above, ARM64 KSFT tests can be run: + + + as standalone (example for signal tests) + + $ make -C tools/testing/selftest/arm64/signal clean + $ make -C tools/testing/selftest/arm64/signal \ + INSTALL_PATH= install + + and then launching on the target device inside the installed path: + + device# cd && ./test_arm64_signals.sh [-k | -v] + + + within the KSelfTest framework using standard Linux top-level-makefile + targets: + + $ make TARGETS=arm64 kselftest-clean + $ make TARGETS=arm64 kselftest + + Further details on building and running KFST can be found in: + Documentation/dev-tools/kselftest.rst + +- Tests can depend on some arch-specific definitions which can be found in a + standard Kernel Headers installation in $(top_srcdir)/usr/include. + Such Kernel Headers are automatically installed (via make headers_install) + by KSFT framework itself in a dedicated directory when tests are launched + via KSFT itself; when running standalone, instead, a Warning is issued + if such headers cannot be found somewhere (we try to guess a few standard + locations anyway) + +- Some of these tests may be related to possibly not implemented ARMv8 + features: depending on their implementation status on the effective HW + we'll expect different results. The tests' harness will take care to check + at run-time if the required features are supported and will act accordingly. + Moreover, in order to avoid any kind of compile-time dependency on the + toolchain (possibly due to the above mentioned not-implemented features), + we make strictly use of direct 'S3_ sysreg' raw-encoding while checking for + those features and/or lookin up sysregs.