[PATCH v2 05/16] perf trace beauty: Make MSR arrays const

From: Ian Rogers
Date: Fri May 26 2023 - 14:34:43 EST


Allows the movement of 46,072 bytes from .data to .data.rel.ro.

Signed-off-by: Ian Rogers <irogers@xxxxxxxxxx>
---
tools/perf/trace/beauty/beauty.h | 2 +-
tools/perf/trace/beauty/tracepoints/x86_msr.sh | 6 +++---
2 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/tools/perf/trace/beauty/beauty.h b/tools/perf/trace/beauty/beauty.h
index 4c59edddd6a8..3d12bf0f6d07 100644
--- a/tools/perf/trace/beauty/beauty.h
+++ b/tools/perf/trace/beauty/beauty.h
@@ -11,7 +11,7 @@ struct strarray {
u64 offset;
int nr_entries;
const char *prefix;
- const char **entries;
+ const char * const *entries;
};

#define DEFINE_STRARRAY(array, _prefix) struct strarray strarray__##array = { \
diff --git a/tools/perf/trace/beauty/tracepoints/x86_msr.sh b/tools/perf/trace/beauty/tracepoints/x86_msr.sh
index 0078689963e0..fa3c4418e856 100755
--- a/tools/perf/trace/beauty/tracepoints/x86_msr.sh
+++ b/tools/perf/trace/beauty/tracepoints/x86_msr.sh
@@ -13,7 +13,7 @@ x86_msr_index=${arch_x86_header_dir}/msr-index.h
# Just the ones starting with 0x00000 so as to have a simple
# array.

-printf "static const char *x86_MSRs[] = {\n"
+printf "static const char * const x86_MSRs[] = {\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0x00000[[:xdigit:]]+)[[:space:]]*.*'
grep -E $regex ${x86_msr_index} | grep -E -v 'MSR_(ATOM|P[46]|IA32_(TSC_DEADLINE|UCODE_REV)|IDT_FCR4)' | \
sed -r "s/$regex/\2 \1/g" | sort -n | \
@@ -24,7 +24,7 @@ printf "};\n\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0xc0000[[:xdigit:]]+)[[:space:]]*.*'
printf "#define x86_64_specific_MSRs_offset "
grep -E $regex ${x86_msr_index} | sed -r "s/$regex/\2/g" | sort -n | head -1
-printf "static const char *x86_64_specific_MSRs[] = {\n"
+printf "static const char * const x86_64_specific_MSRs[] = {\n"
grep -E $regex ${x86_msr_index} | \
sed -r "s/$regex/\2 \1/g" | grep -E -vw 'K6_WHCR' | sort -n | \
xargs printf "\t[%s - x86_64_specific_MSRs_offset] = \"%s\",\n"
@@ -33,7 +33,7 @@ printf "};\n\n"
regex='^[[:space:]]*#[[:space:]]*define[[:space:]]+MSR_([[:alnum:]][[:alnum:]_]+)[[:space:]]+(0xc0010[[:xdigit:]]+)[[:space:]]*.*'
printf "#define x86_AMD_V_KVM_MSRs_offset "
grep -E $regex ${x86_msr_index} | sed -r "s/$regex/\2/g" | sort -n | head -1
-printf "static const char *x86_AMD_V_KVM_MSRs[] = {\n"
+printf "static const char * const x86_AMD_V_KVM_MSRs[] = {\n"
grep -E $regex ${x86_msr_index} | \
sed -r "s/$regex/\2 \1/g" | sort -n | \
xargs printf "\t[%s - x86_AMD_V_KVM_MSRs_offset] = \"%s\",\n"
--
2.41.0.rc0.172.g3f132b7071-goog