perf trace: Make some large static arrays const to move it to .data.rel.ro

Allows the movement of 33,128 bytes from .data to .data.rel.ro.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: K Prateek Nayak <kprateek.nayak@amd.com>
Cc: Kan Liang <kan.liang@linux.intel.com>
Cc: Leo Yan <leo.yan@linaro.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ravi Bangoria <ravi.bangoria@amd.com>
Cc: Ross Zwisler <zwisler@chromium.org>
Cc: Sean Christopherson <seanjc@google.com>
Cc: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: Tiezhu Yang <yangtiezhu@loongson.cn>
Cc: Yang Jihong <yangjihong1@huawei.com>
Link: https://lore.kernel.org/r/20230526183401.2326121-5-irogers@google.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index b49d3ab..62c7c99 100644 (file)
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -914,7 +914,7 @@ static size_t syscall_arg__scnprintf_getrandom_flags(char *bf, size_t size,
 #include "trace/beauty/socket_type.c"
 #include "trace/beauty/waitid_options.c"
 
-static struct syscall_fmt syscall_fmts[] = {
+static const struct syscall_fmt syscall_fmts[] = {
        { .name     = "access",
          .arg = { [1] = { .scnprintf = SCA_ACCMODE,  /* mode */ }, }, },
        { .name     = "arch_prctl",
@@ -1176,18 +1176,21 @@ static int syscall_fmt__cmp(const void *name, const void *fmtp)
        return strcmp(name, fmt->name);
 }
 
-static struct syscall_fmt *__syscall_fmt__find(struct syscall_fmt *fmts, const int nmemb, const char *name)
+static const struct syscall_fmt *__syscall_fmt__find(const struct syscall_fmt *fmts,
+                                                    const int nmemb,
+                                                    const char *name)
 {
        return bsearch(name, fmts, nmemb, sizeof(struct syscall_fmt), syscall_fmt__cmp);
 }
 
-static struct syscall_fmt *syscall_fmt__find(const char *name)
+static const struct syscall_fmt *syscall_fmt__find(const char *name)
 {
        const int nmemb = ARRAY_SIZE(syscall_fmts);
        return __syscall_fmt__find(syscall_fmts, nmemb, name);
 }
 
-static struct syscall_fmt *__syscall_fmt__find_by_alias(struct syscall_fmt *fmts, const int nmemb, const char *alias)
+static const struct syscall_fmt *__syscall_fmt__find_by_alias(const struct syscall_fmt *fmts,
+                                                             const int nmemb, const char *alias)
 {
        int i;
 
@@ -1199,7 +1202,7 @@ static struct syscall_fmt *__syscall_fmt__find_by_alias(struct syscall_fmt *fmts
        return NULL;
 }
 
-static struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias)
+static const struct syscall_fmt *syscall_fmt__find_by_alias(const char *alias)
 {
        const int nmemb = ARRAY_SIZE(syscall_fmts);
        return __syscall_fmt__find_by_alias(syscall_fmts, nmemb, alias);
@@ -1224,7 +1227,7 @@ struct syscall {
        bool                nonexistent;
        struct tep_format_field *args;
        const char          *name;
-       struct syscall_fmt  *fmt;
+       const struct syscall_fmt  *fmt;
        struct syscall_arg_fmt *arg_fmt;
 };
 
@@ -1673,7 +1676,7 @@ static int syscall__alloc_arg_fmts(struct syscall *sc, int nr_args)
        return 0;
 }
 
-static struct syscall_arg_fmt syscall_arg_fmts__by_name[] = {
+static const struct syscall_arg_fmt syscall_arg_fmts__by_name[] = {
        { .name = "msr",        .scnprintf = SCA_X86_MSR,         .strtoul = STUL_X86_MSR,         },
        { .name = "vector",     .scnprintf = SCA_X86_IRQ_VECTORS, .strtoul = STUL_X86_IRQ_VECTORS, },
 };
@@ -1684,13 +1687,14 @@ static int syscall_arg_fmt__cmp(const void *name, const void *fmtp)
        return strcmp(name, fmt->name);
 }
 
-static struct syscall_arg_fmt *
-__syscall_arg_fmt__find_by_name(struct syscall_arg_fmt *fmts, const int nmemb, const char *name)
+static const struct syscall_arg_fmt *
+__syscall_arg_fmt__find_by_name(const struct syscall_arg_fmt *fmts, const int nmemb,
+                               const char *name)
 {
        return bsearch(name, fmts, nmemb, sizeof(struct syscall_arg_fmt), syscall_arg_fmt__cmp);
 }
 
-static struct syscall_arg_fmt *syscall_arg_fmt__find_by_name(const char *name)
+static const struct syscall_arg_fmt *syscall_arg_fmt__find_by_name(const char *name)
 {
        const int nmemb = ARRAY_SIZE(syscall_arg_fmts__by_name);
        return __syscall_arg_fmt__find_by_name(syscall_arg_fmts__by_name, nmemb, name);
@@ -1735,8 +1739,9 @@ syscall_arg_fmt__init_array(struct syscall_arg_fmt *arg, struct tep_format_field
                         * 7 unsigned long
                         */
                        arg->scnprintf = SCA_FD;
-               } else {
-                       struct syscall_arg_fmt *fmt = syscall_arg_fmt__find_by_name(field->name);
+               } else {
+                       const struct syscall_arg_fmt *fmt =
+                               syscall_arg_fmt__find_by_name(field->name);
 
                        if (fmt) {
                                arg->scnprintf = fmt->scnprintf;
@@ -4458,7 +4463,7 @@ static void evsel__set_syscall_arg_fmt(struct evsel *evsel, const char *name)
        struct syscall_arg_fmt *fmt = evsel__syscall_arg_fmt(evsel);
 
        if (fmt) {
-               struct syscall_fmt *scfmt = syscall_fmt__find(name);
+               const struct syscall_fmt *scfmt = syscall_fmt__find(name);
 
                if (scfmt) {
                        int skip = 0;
@@ -4525,7 +4530,7 @@ static int trace__parse_events_option(const struct option *opt, const char *str,
        int len = strlen(str) + 1, err = -1, list, idx;
        char *strace_groups_dir = system_path(STRACE_GROUPS_DIR);
        char group_name[PATH_MAX];
-       struct syscall_fmt *fmt;
+       const struct syscall_fmt *fmt;
 
        if (strace_groups_dir == NULL)
                return -1;