[PATCH v3 1/5] tools: arm64: Add a Makefile for generating sysreg-defs.h

From: Oliver Upton <oliver.upton@linux.dev>
To: kvm@vger.kernel.org
Cc: kvmarm@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-perf-users@vger.kernel.org, Mark Brown <broonie@kernel.org>,
	Jing Zhang <jingzhangos@google.com>,
	Zenghui Yu <yuzenghui@huawei.com>,
	Suzuki K Poulose <suzuki.poulose@arm.com>,
	James Morse <james.morse@arm.com>, Marc Zyngier <maz@kernel.org>,
	Paolo Bonzini <pbonzini@redhat.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Ian Rogers <irogers@google.com>,
	Namhyung Kim <namhyung@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	Mark Rutland <mark.rutland@arm.com>,
	Arnaldo Carvalho de Melo <acme@kernel.org>,
	Ingo Molnar <mingo@redhat.com>,
	Peter Zijlstra <peterz@infradead.org>,
	Oliver Upton <oliver.upton@linux.dev>
Subject: [PATCH v3 1/5] tools: arm64: Add a Makefile for generating sysreg-defs.h
Date: Wed, 11 Oct 2023 19:57:36 +0000	[thread overview]
Message-ID: <20231011195740.3349631-2-oliver.upton@linux.dev> (raw)
In-Reply-To: <20231011195740.3349631-1-oliver.upton@linux.dev>

Use a common Makefile for generating sysreg-defs.h, which will soon be
needed by perf and KVM selftests. The naming scheme of the generated
macros is not expected to change, so just refer to the canonical
script/data in the kernel source rather than copying to tools.

Co-developed-by: Jing Zhang <jingzhangos@google.com>
Signed-off-by: Jing Zhang <jingzhangos@google.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
---
 tools/arch/arm64/include/.gitignore |  1 +
 tools/arch/arm64/tools/Makefile     | 38 +++++++++++++++++++++++++++++
 2 files changed, 39 insertions(+)
 create mode 100644 tools/arch/arm64/include/.gitignore
 create mode 100644 tools/arch/arm64/tools/Makefile

diff --git a/tools/arch/arm64/include/.gitignore b/tools/arch/arm64/include/.gitignore
new file mode 100644
index 000000000000..9ab870da897d
--- /dev/null
+++ b/tools/arch/arm64/include/.gitignore
@@ -0,0 +1 @@
+generated/
diff --git a/tools/arch/arm64/tools/Makefile b/tools/arch/arm64/tools/Makefile
new file mode 100644
index 000000000000..f867e6036c62
--- /dev/null
+++ b/tools/arch/arm64/tools/Makefile
@@ -0,0 +1,38 @@
+# SPDX-License-Identifier: GPL-2.0
+
+ifeq ($(srctree),)
+srctree := $(patsubst %/,%,$(dir $(CURDIR)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+srctree := $(patsubst %/,%,$(dir $(srctree)))
+endif
+
+include $(srctree)/tools/scripts/Makefile.include
+
+AWK	?= awk
+MKDIR	?= mkdir
+RM	?= rm
+
+ifeq ($(V),1)
+Q =
+else
+Q = @
+endif
+
+arm64_tools_dir = $(srctree)/arch/arm64/tools
+arm64_sysreg_tbl = $(arm64_tools_dir)/sysreg
+arm64_gen_sysreg = $(arm64_tools_dir)/gen-sysreg.awk
+arm64_generated_dir = $(srctree)/tools/arch/arm64/include/generated
+arm64_sysreg_defs = $(arm64_generated_dir)/asm/sysreg-defs.h
+
+all: $(arm64_sysreg_defs)
+	@:
+
+$(arm64_sysreg_defs): $(arm64_gen_sysreg) $(arm64_sysreg_tbl)
+	$(Q)$(MKDIR) -p $(dir $@)
+	$(QUIET_GEN)$(AWK) -f $^ > $@
+
+clean:
+	$(Q)$(RM) -rf $(arm64_generated_dir)
+
+.PHONY: all clean
-- 
2.42.0.609.gbb76f46606-goog

