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From:   Tiezhu Yang <yangtiezhu@loongson.cn>
To:     Peter Zijlstra <peterz@infradead.org>,
        Ingo Molnar <mingo@redhat.com>,
        Arnaldo Carvalho de Melo <acme@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Alexander Shishkin <alexander.shishkin@linux.intel.com>,
        Jiri Olsa <jolsa@kernel.org>,
        Namhyung Kim <namhyung@kernel.org>,
        Ian Rogers <irogers@google.com>,
        Adrian Hunter <adrian.hunter@intel.com>
Cc:     Hans-Peter Nilsson <hp@axis.com>,
        Alexander Kapshuk <alexander.kapshuk@gmail.com>,
        Leo Yan <leo.yan@linaro.org>, linux-perf-users@vger.kernel.org,
        linux-kernel@vger.kernel.org, loongarch@lists.linux.dev,
        loongson-kernel@lists.loongnix.cn
Subject: [PATCH v3 1/5] perf tools: Declare syscalltbl_*[] as const for all archs
Date:   Tue, 30 May 2023 17:51:01 +0800
Message-Id: <1685440265-7021-2-git-send-email-yangtiezhu@loongson.cn>
In-Reply-To: <1685440265-7021-1-git-send-email-yangtiezhu@loongson.cn>
References: <1685440265-7021-1-git-send-email-yangtiezhu@loongson.cn>
Precedence: bulk

syscalltbl_*[] should never be changing, let us declare it as const.

Suggested-by: Ian Rogers <irogers@google.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
---
 tools/perf/arch/arm64/entry/syscalls/mksyscalltbl     |  2 +-
 tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl |  2 +-
 tools/perf/arch/mips/entry/syscalls/mksyscalltbl      |  2 +-
 tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl   |  2 +-
 tools/perf/arch/s390/entry/syscalls/mksyscalltbl      |  2 +-
 tools/perf/arch/x86/entry/syscalls/syscalltbl.sh      |  2 +-
 tools/perf/util/syscalltbl.c                          | 14 +++++++-------
 7 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
index 22cdf91..4edcdf6 100755
--- a/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/arm64/entry/syscalls/mksyscalltbl
@@ -34,7 +34,7 @@ create_table_from_c()
 create_table()
 {
 	echo "#include \"$input\""
-	echo "static const char *syscalltbl_arm64[] = {"
+	echo "static const char *const syscalltbl_arm64[] = {"
 	create_table_from_c
 	echo "};"
 }
diff --git a/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
index c52156f..5fb83bd 100755
--- a/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/loongarch/entry/syscalls/mksyscalltbl
@@ -50,7 +50,7 @@ create_table_from_c()
 
 create_table()
 {
-	echo "static const char *syscalltbl_loongarch[] = {"
+	echo "static const char *const syscalltbl_loongarch[] = {"
 	create_table_from_c
 	echo "};"
 }
diff --git a/tools/perf/arch/mips/entry/syscalls/mksyscalltbl b/tools/perf/arch/mips/entry/syscalls/mksyscalltbl
index fb1f494..c0d93f9 100644
--- a/tools/perf/arch/mips/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/mips/entry/syscalls/mksyscalltbl
@@ -18,7 +18,7 @@ create_table()
 {
 	local max_nr nr abi sc discard
 
-	echo 'static const char *syscalltbl_mips_n64[] = {'
+	echo 'static const char *const syscalltbl_mips_n64[] = {'
 	while read nr abi sc discard; do
 		printf '\t[%d] = "%s",\n' $nr $sc
 		max_nr=$nr
diff --git a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
index 6c58060..0eb316f 100755
--- a/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/powerpc/entry/syscalls/mksyscalltbl
@@ -23,7 +23,7 @@ create_table()
 	max_nr=-1
 	nr=0
 
-	echo "static const char *syscalltbl_powerpc_${wordsize}[] = {"
+	echo "static const char *const syscalltbl_powerpc_${wordsize}[] = {"
 	while read nr abi sc discard; do
 		if [ "$max_nr" -lt "$nr" ]; then
 			printf '\t[%d] = "%s",\n' $nr $sc
diff --git a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
index 72ecbb6..52eb88a 100755
--- a/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
+++ b/tools/perf/arch/s390/entry/syscalls/mksyscalltbl
@@ -18,7 +18,7 @@ create_table()
 {
 	local max_nr nr abi sc discard
 
-	echo 'static const char *syscalltbl_s390_64[] = {'
+	echo 'static const char *const syscalltbl_s390_64[] = {'
 	while read nr abi sc discard; do
 		printf '\t[%d] = "%s",\n' $nr $sc
 		max_nr=$nr
diff --git a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
index 029a72c..fa526a9 100755
--- a/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
+++ b/tools/perf/arch/x86/entry/syscalls/syscalltbl.sh
@@ -18,7 +18,7 @@ emit() {
     syscall_macro "$nr" "$entry"
 }
 
-echo "static const char *syscalltbl_${arch}[] = {"
+echo "static const char *const syscalltbl_${arch}[] = {"
 
 sorted_table=$(mktemp /tmp/syscalltbl.XXXXXX)
 grep '^[0-9]' "$in" | sort -n > $sorted_table
diff --git a/tools/perf/util/syscalltbl.c b/tools/perf/util/syscalltbl.c
index 313ecce..63be7b5 100644
--- a/tools/perf/util/syscalltbl.c
+++ b/tools/perf/util/syscalltbl.c
@@ -17,31 +17,31 @@
 #if defined(__x86_64__)
 #include <asm/syscalls_64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_x86_64_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_x86_64;
+static const char *const *syscalltbl_native = syscalltbl_x86_64;
 #elif defined(__s390x__)
 #include <asm/syscalls_64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_S390_64_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_s390_64;
+static const char *const *syscalltbl_native = syscalltbl_s390_64;
 #elif defined(__powerpc64__)
 #include <asm/syscalls_64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_64_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_powerpc_64;
+static const char *const *syscalltbl_native = syscalltbl_powerpc_64;
 #elif defined(__powerpc__)
 #include <asm/syscalls_32.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_POWERPC_32_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_powerpc_32;
+static const char *const *syscalltbl_native = syscalltbl_powerpc_32;
 #elif defined(__aarch64__)
 #include <asm/syscalls.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_ARM64_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_arm64;
+static const char *const *syscalltbl_native = syscalltbl_arm64;
 #elif defined(__mips__)
 #include <asm/syscalls_n64.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_MIPS_N64_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_mips_n64;
+static const char *const *syscalltbl_native = syscalltbl_mips_n64;
 #elif defined(__loongarch__)
 #include <asm/syscalls.c>
 const int syscalltbl_native_max_id = SYSCALLTBL_LOONGARCH_MAX_ID;
-static const char **syscalltbl_native = syscalltbl_loongarch;
+static const char *const *syscalltbl_native = syscalltbl_loongarch;
 #endif
 
 struct syscall {
-- 
2.1.0