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Message-Id: <1685440265-7021-2-git-send-email-yangtiezhu@loongson.cn>
Date: Tue, 30 May 2023 17:51:01 +0800
From: Tiezhu Yang <yangtiezhu@...ngson.cn>
To: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
Namhyung Kim <namhyung@...nel.org>,
Ian Rogers <irogers@...gle.com>,
Adrian Hunter <adrian.hunter@...el.com>
Cc: Hans-Peter Nilsson <hp@...s.com>,
Alexander Kapshuk <alexander.kapshuk@...il.com>,
Leo Yan <leo.yan@...aro.org>, linux-perf-users@...r.kernel.org,
linux-kernel@...r.kernel.org, loongarch@...ts.linux.dev,
loongson-kernel@...ts.loongnix.cn
Subject: [PATCH v3 1/5] perf tools: Declare syscalltbl_*[] as const for all archs
syscalltbl_*[] should never be changing, let us declare it as const.
Suggested-by: Ian Rogers <irogers@...gle.com>
Signed-off-by: Tiezhu Yang <yangtiezhu@...ngson.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
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