[PATCH v1 4/4] perf build: Cleanup perf register configuration

From: Leo Yan <leo.yan@linux.dev>
To: Arnaldo Carvalho de Melo <acme@kernel.org>,
	Namhyung Kim <namhyung@kernel.org>, Jiri Olsa <jolsa@kernel.org>,
	Ian Rogers <irogers@google.com>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Alexander Shishkin <alexander.shishkin@linux.intel.com>,
	John Garry <john.g.garry@oracle.com>,
	Will Deacon <will@kernel.org>, James Clark <james.clark@arm.com>,
	Mike Leach <mike.leach@linaro.org>, Guo Ren <guoren@kernel.org>,
	Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Albert Ou <aou@eecs.berkeley.edu>,
	Huacai Chen <chenhuacai@kernel.org>,
	Ming Wang <wangming01@loongson.cn>,
	Kan Liang <kan.liang@linux.intel.com>,
	linux-perf-users@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org
Cc: Leo Yan <leo.yan@linux.dev>
Subject: [PATCH v1 4/4] perf build: Cleanup perf register configuration
Date: Wed, 14 Feb 2024 19:39:47 +0800	[thread overview]
Message-ID: <20240214113947.240957-5-leo.yan@linux.dev> (raw)
In-Reply-To: <20240214113947.240957-1-leo.yan@linux.dev>

The target is to allow the tool to always enable the perf register
feature for native parsing and cross parsing, and current code doesn't
depend on the macro 'HAVE_PERF_REGS_SUPPORT'.

This patch remove the variable 'NO_PERF_REGS' and the defined macro
'HAVE_PERF_REGS_SUPPORT' from the Makefile.

Signed-off-by: Leo Yan <leo.yan@linux.dev>
---
 tools/perf/Makefile.config | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/tools/perf/Makefile.config b/tools/perf/Makefile.config
index 8b740c668ab7..7de7111c0226 100644
--- a/tools/perf/Makefile.config
+++ b/tools/perf/Makefile.config
@@ -28,8 +28,6 @@ include $(srctree)/tools/scripts/Makefile.arch
 
 $(call detected_var,SRCARCH)
 
-NO_PERF_REGS := 1
-
 ifneq ($(NO_SYSCALL_TABLE),1)
   NO_SYSCALL_TABLE := 1
 
@@ -50,7 +48,6 @@ endif
 
 # Additional ARCH settings for ppc
 ifeq ($(SRCARCH),powerpc)
-  NO_PERF_REGS := 0
   CFLAGS += -I$(OUTPUT)arch/powerpc/include/generated
   LIBUNWIND_LIBS := -lunwind -lunwind-ppc64
 endif
@@ -66,41 +63,27 @@ ifeq ($(SRCARCH),x86)
   else
     LIBUNWIND_LIBS = -lunwind-x86 -llzma -lunwind
   endif
-  NO_PERF_REGS := 0
 endif
 
 ifeq ($(SRCARCH),arm)
-  NO_PERF_REGS := 0
   LIBUNWIND_LIBS = -lunwind -lunwind-arm
 endif
 
 ifeq ($(SRCARCH),arm64)
-  NO_PERF_REGS := 0
   CFLAGS += -I$(OUTPUT)arch/arm64/include/generated
   LIBUNWIND_LIBS = -lunwind -lunwind-aarch64
 endif
 
 ifeq ($(SRCARCH),loongarch)
-  NO_PERF_REGS := 0
   CFLAGS += -I$(OUTPUT)arch/loongarch/include/generated
   LIBUNWIND_LIBS = -lunwind -lunwind-loongarch64
 endif
 
-ifeq ($(SRCARCH),riscv)
-  NO_PERF_REGS := 0
-endif
-
-ifeq ($(SRCARCH),csky)
-  NO_PERF_REGS := 0
-endif
-
 ifeq ($(ARCH),s390)
-  NO_PERF_REGS := 0
   CFLAGS += -fPIC -I$(OUTPUT)arch/s390/include/generated
 endif
 
 ifeq ($(ARCH),mips)
-  NO_PERF_REGS := 0
   CFLAGS += -I$(OUTPUT)arch/mips/include/generated
   LIBUNWIND_LIBS = -lunwind -lunwind-mips
 endif
@@ -161,10 +144,6 @@ endif
 FEATURE_CHECK_CFLAGS-libopencsd := $(LIBOPENCSD_CFLAGS)
 FEATURE_CHECK_LDFLAGS-libopencsd := $(LIBOPENCSD_LDFLAGS) $(OPENCSDLIBS)
 
-ifeq ($(NO_PERF_REGS),0)
-  CFLAGS += -DHAVE_PERF_REGS_SUPPORT
-endif
-
 # for linking with debug library, run like:
 # make DEBUG=1 LIBDW_DIR=/opt/libdw/
 ifdef LIBDW_DIR
-- 
2.34.1

