v4.19.13 snapshot.
diff --git a/tools/perf/builtin-mem.c b/tools/perf/builtin-mem.c
new file mode 100644
index 0000000..57393e9
--- /dev/null
+++ b/tools/perf/builtin-mem.c
@@ -0,0 +1,459 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include "builtin.h"
+#include "perf.h"
+
+#include <subcmd/parse-options.h>
+#include "util/trace-event.h"
+#include "util/tool.h"
+#include "util/session.h"
+#include "util/data.h"
+#include "util/mem-events.h"
+#include "util/debug.h"
+#include "util/symbol.h"
+
+#define MEM_OPERATION_LOAD 0x1
+#define MEM_OPERATION_STORE 0x2
+
+struct perf_mem {
+ struct perf_tool tool;
+ char const *input_name;
+ bool hide_unresolved;
+ bool dump_raw;
+ bool force;
+ bool phys_addr;
+ int operation;
+ const char *cpu_list;
+ DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
+};
+
+static int parse_record_events(const struct option *opt,
+ const char *str, int unset __maybe_unused)
+{
+ struct perf_mem *mem = *(struct perf_mem **)opt->value;
+ int j;
+
+ if (strcmp(str, "list")) {
+ if (!perf_mem_events__parse(str)) {
+ mem->operation = 0;
+ return 0;
+ }
+ exit(-1);
+ }
+
+ for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
+ struct perf_mem_event *e = &perf_mem_events[j];
+
+ fprintf(stderr, "%-13s%-*s%s\n",
+ e->tag,
+ verbose > 0 ? 25 : 0,
+ verbose > 0 ? perf_mem_events__name(j) : "",
+ e->supported ? ": available" : "");
+ }
+ exit(0);
+}
+
+static const char * const __usage[] = {
+ "perf mem record [<options>] [<command>]",
+ "perf mem record [<options>] -- <command> [<options>]",
+ NULL
+};
+
+static const char * const *record_mem_usage = __usage;
+
+static int __cmd_record(int argc, const char **argv, struct perf_mem *mem)
+{
+ int rec_argc, i = 0, j;
+ const char **rec_argv;
+ int ret;
+ bool all_user = false, all_kernel = false;
+ struct option options[] = {
+ OPT_CALLBACK('e', "event", &mem, "event",
+ "event selector. use 'perf mem record -e list' to list available events",
+ parse_record_events),
+ OPT_UINTEGER(0, "ldlat", &perf_mem_events__loads_ldlat, "mem-loads latency"),
+ OPT_INCR('v', "verbose", &verbose,
+ "be more verbose (show counter open errors, etc)"),
+ OPT_BOOLEAN('U', "all-user", &all_user, "collect only user level data"),
+ OPT_BOOLEAN('K', "all-kernel", &all_kernel, "collect only kernel level data"),
+ OPT_END()
+ };
+
+ argc = parse_options(argc, argv, options, record_mem_usage,
+ PARSE_OPT_KEEP_UNKNOWN);
+
+ rec_argc = argc + 9; /* max number of arguments */
+ rec_argv = calloc(rec_argc + 1, sizeof(char *));
+ if (!rec_argv)
+ return -1;
+
+ rec_argv[i++] = "record";
+
+ if (mem->operation & MEM_OPERATION_LOAD)
+ perf_mem_events[PERF_MEM_EVENTS__LOAD].record = true;
+
+ if (mem->operation & MEM_OPERATION_STORE)
+ perf_mem_events[PERF_MEM_EVENTS__STORE].record = true;
+
+ if (perf_mem_events[PERF_MEM_EVENTS__LOAD].record)
+ rec_argv[i++] = "-W";
+
+ rec_argv[i++] = "-d";
+
+ if (mem->phys_addr)
+ rec_argv[i++] = "--phys-data";
+
+ for (j = 0; j < PERF_MEM_EVENTS__MAX; j++) {
+ if (!perf_mem_events[j].record)
+ continue;
+
+ if (!perf_mem_events[j].supported) {
+ pr_err("failed: event '%s' not supported\n",
+ perf_mem_events__name(j));
+ free(rec_argv);
+ return -1;
+ }
+
+ rec_argv[i++] = "-e";
+ rec_argv[i++] = perf_mem_events__name(j);
+ };
+
+ if (all_user)
+ rec_argv[i++] = "--all-user";
+
+ if (all_kernel)
+ rec_argv[i++] = "--all-kernel";
+
+ for (j = 0; j < argc; j++, i++)
+ rec_argv[i] = argv[j];
+
+ if (verbose > 0) {
+ pr_debug("calling: record ");
+
+ while (rec_argv[j]) {
+ pr_debug("%s ", rec_argv[j]);
+ j++;
+ }
+ pr_debug("\n");
+ }
+
+ ret = cmd_record(i, rec_argv);
+ free(rec_argv);
+ return ret;
+}
+
+static int
+dump_raw_samples(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ struct perf_mem *mem = container_of(tool, struct perf_mem, tool);
+ struct addr_location al;
+ const char *fmt;
+
+ if (machine__resolve(machine, &al, sample) < 0) {
+ fprintf(stderr, "problem processing %d event, skipping it.\n",
+ event->header.type);
+ return -1;
+ }
+
+ if (al.filtered || (mem->hide_unresolved && al.sym == NULL))
+ goto out_put;
+
+ if (al.map != NULL)
+ al.map->dso->hit = 1;
+
+ if (mem->phys_addr) {
+ if (symbol_conf.field_sep) {
+ fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s0x%016"PRIx64
+ "%s%"PRIu64"%s0x%"PRIx64"%s%s:%s\n";
+ } else {
+ fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
+ "%s0x%016"PRIx64"%s%5"PRIu64"%s0x%06"PRIx64
+ "%s%s:%s\n";
+ symbol_conf.field_sep = " ";
+ }
+
+ printf(fmt,
+ sample->pid,
+ symbol_conf.field_sep,
+ sample->tid,
+ symbol_conf.field_sep,
+ sample->ip,
+ symbol_conf.field_sep,
+ sample->addr,
+ symbol_conf.field_sep,
+ sample->phys_addr,
+ symbol_conf.field_sep,
+ sample->weight,
+ symbol_conf.field_sep,
+ sample->data_src,
+ symbol_conf.field_sep,
+ al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
+ al.sym ? al.sym->name : "???");
+ } else {
+ if (symbol_conf.field_sep) {
+ fmt = "%d%s%d%s0x%"PRIx64"%s0x%"PRIx64"%s%"PRIu64
+ "%s0x%"PRIx64"%s%s:%s\n";
+ } else {
+ fmt = "%5d%s%5d%s0x%016"PRIx64"%s0x016%"PRIx64
+ "%s%5"PRIu64"%s0x%06"PRIx64"%s%s:%s\n";
+ symbol_conf.field_sep = " ";
+ }
+
+ printf(fmt,
+ sample->pid,
+ symbol_conf.field_sep,
+ sample->tid,
+ symbol_conf.field_sep,
+ sample->ip,
+ symbol_conf.field_sep,
+ sample->addr,
+ symbol_conf.field_sep,
+ sample->weight,
+ symbol_conf.field_sep,
+ sample->data_src,
+ symbol_conf.field_sep,
+ al.map ? (al.map->dso ? al.map->dso->long_name : "???") : "???",
+ al.sym ? al.sym->name : "???");
+ }
+out_put:
+ addr_location__put(&al);
+ return 0;
+}
+
+static int process_sample_event(struct perf_tool *tool,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_evsel *evsel __maybe_unused,
+ struct machine *machine)
+{
+ return dump_raw_samples(tool, event, sample, machine);
+}
+
+static int report_raw_events(struct perf_mem *mem)
+{
+ struct perf_data data = {
+ .file = {
+ .path = input_name,
+ },
+ .mode = PERF_DATA_MODE_READ,
+ .force = mem->force,
+ };
+ int ret;
+ struct perf_session *session = perf_session__new(&data, false,
+ &mem->tool);
+
+ if (session == NULL)
+ return -1;
+
+ if (mem->cpu_list) {
+ ret = perf_session__cpu_bitmap(session, mem->cpu_list,
+ mem->cpu_bitmap);
+ if (ret < 0)
+ goto out_delete;
+ }
+
+ ret = symbol__init(&session->header.env);
+ if (ret < 0)
+ goto out_delete;
+
+ if (mem->phys_addr)
+ printf("# PID, TID, IP, ADDR, PHYS ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
+ else
+ printf("# PID, TID, IP, ADDR, LOCAL WEIGHT, DSRC, SYMBOL\n");
+
+ ret = perf_session__process_events(session);
+
+out_delete:
+ perf_session__delete(session);
+ return ret;
+}
+
+static int report_events(int argc, const char **argv, struct perf_mem *mem)
+{
+ const char **rep_argv;
+ int ret, i = 0, j, rep_argc;
+
+ if (mem->dump_raw)
+ return report_raw_events(mem);
+
+ rep_argc = argc + 3;
+ rep_argv = calloc(rep_argc + 1, sizeof(char *));
+ if (!rep_argv)
+ return -1;
+
+ rep_argv[i++] = "report";
+ rep_argv[i++] = "--mem-mode";
+ rep_argv[i++] = "-n"; /* display number of samples */
+
+ /*
+ * there is no weight (cost) associated with stores, so don't print
+ * the column
+ */
+ if (!(mem->operation & MEM_OPERATION_LOAD)) {
+ if (mem->phys_addr)
+ rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
+ "dso_daddr,tlb,locked,phys_daddr";
+ else
+ rep_argv[i++] = "--sort=mem,sym,dso,symbol_daddr,"
+ "dso_daddr,tlb,locked";
+ } else if (mem->phys_addr)
+ rep_argv[i++] = "--sort=local_weight,mem,sym,dso,symbol_daddr,"
+ "dso_daddr,snoop,tlb,locked,phys_daddr";
+
+ for (j = 1; j < argc; j++, i++)
+ rep_argv[i] = argv[j];
+
+ ret = cmd_report(i, rep_argv);
+ free(rep_argv);
+ return ret;
+}
+
+struct mem_mode {
+ const char *name;
+ int mode;
+};
+
+#define MEM_OPT(n, m) \
+ { .name = n, .mode = (m) }
+
+#define MEM_END { .name = NULL }
+
+static const struct mem_mode mem_modes[]={
+ MEM_OPT("load", MEM_OPERATION_LOAD),
+ MEM_OPT("store", MEM_OPERATION_STORE),
+ MEM_END
+};
+
+static int
+parse_mem_ops(const struct option *opt, const char *str, int unset)
+{
+ int *mode = (int *)opt->value;
+ const struct mem_mode *m;
+ char *s, *os = NULL, *p;
+ int ret = -1;
+
+ if (unset)
+ return 0;
+
+ /* str may be NULL in case no arg is passed to -t */
+ if (str) {
+ /* because str is read-only */
+ s = os = strdup(str);
+ if (!s)
+ return -1;
+
+ /* reset mode */
+ *mode = 0;
+
+ for (;;) {
+ p = strchr(s, ',');
+ if (p)
+ *p = '\0';
+
+ for (m = mem_modes; m->name; m++) {
+ if (!strcasecmp(s, m->name))
+ break;
+ }
+ if (!m->name) {
+ fprintf(stderr, "unknown sampling op %s,"
+ " check man page\n", s);
+ goto error;
+ }
+
+ *mode |= m->mode;
+
+ if (!p)
+ break;
+
+ s = p + 1;
+ }
+ }
+ ret = 0;
+
+ if (*mode == 0)
+ *mode = MEM_OPERATION_LOAD;
+error:
+ free(os);
+ return ret;
+}
+
+int cmd_mem(int argc, const char **argv)
+{
+ struct stat st;
+ struct perf_mem mem = {
+ .tool = {
+ .sample = process_sample_event,
+ .mmap = perf_event__process_mmap,
+ .mmap2 = perf_event__process_mmap2,
+ .comm = perf_event__process_comm,
+ .lost = perf_event__process_lost,
+ .fork = perf_event__process_fork,
+ .build_id = perf_event__process_build_id,
+ .namespaces = perf_event__process_namespaces,
+ .ordered_events = true,
+ },
+ .input_name = "perf.data",
+ /*
+ * default to both load an store sampling
+ */
+ .operation = MEM_OPERATION_LOAD | MEM_OPERATION_STORE,
+ };
+ const struct option mem_options[] = {
+ OPT_CALLBACK('t', "type", &mem.operation,
+ "type", "memory operations(load,store) Default load,store",
+ parse_mem_ops),
+ OPT_BOOLEAN('D', "dump-raw-samples", &mem.dump_raw,
+ "dump raw samples in ASCII"),
+ OPT_BOOLEAN('U', "hide-unresolved", &mem.hide_unresolved,
+ "Only display entries resolved to a symbol"),
+ OPT_STRING('i', "input", &input_name, "file",
+ "input file name"),
+ OPT_STRING('C', "cpu", &mem.cpu_list, "cpu",
+ "list of cpus to profile"),
+ OPT_STRING_NOEMPTY('x', "field-separator", &symbol_conf.field_sep,
+ "separator",
+ "separator for columns, no spaces will be added"
+ " between columns '.' is reserved."),
+ OPT_BOOLEAN('f', "force", &mem.force, "don't complain, do it"),
+ OPT_BOOLEAN('p', "phys-data", &mem.phys_addr, "Record/Report sample physical addresses"),
+ OPT_END()
+ };
+ const char *const mem_subcommands[] = { "record", "report", NULL };
+ const char *mem_usage[] = {
+ NULL,
+ NULL
+ };
+
+ if (perf_mem_events__init()) {
+ pr_err("failed: memory events not supported\n");
+ return -1;
+ }
+
+ argc = parse_options_subcommand(argc, argv, mem_options, mem_subcommands,
+ mem_usage, PARSE_OPT_KEEP_UNKNOWN);
+
+ if (!argc || !(strncmp(argv[0], "rec", 3) || mem.operation))
+ usage_with_options(mem_usage, mem_options);
+
+ if (!mem.input_name || !strlen(mem.input_name)) {
+ if (!fstat(STDIN_FILENO, &st) && S_ISFIFO(st.st_mode))
+ mem.input_name = "-";
+ else
+ mem.input_name = "perf.data";
+ }
+
+ if (!strncmp(argv[0], "rec", 3))
+ return __cmd_record(argc, argv, &mem);
+ else if (!strncmp(argv[0], "rep", 3))
+ return report_events(argc, argv, &mem);
+ else
+ usage_with_options(mem_usage, mem_options);
+
+ return 0;
+}