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-rw-r--r--tools/perf/util/event.c744
1 files changed, 744 insertions, 0 deletions
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
new file mode 100644
index 000000000..7e440fa90
--- /dev/null
+++ b/tools/perf/util/event.c
@@ -0,0 +1,744 @@
+#include <errno.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <perf/cpumap.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <uapi/linux/mman.h> /* To get things like MAP_HUGETLB even on older libc headers */
+#include <linux/perf_event.h>
+#include <linux/zalloc.h>
+#include "cpumap.h"
+#include "dso.h"
+#include "event.h"
+#include "debug.h"
+#include "hist.h"
+#include "machine.h"
+#include "sort.h"
+#include "string2.h"
+#include "strlist.h"
+#include "thread.h"
+#include "thread_map.h"
+#include "time-utils.h"
+#include <linux/ctype.h>
+#include "map.h"
+#include "util/namespaces.h"
+#include "symbol.h"
+#include "symbol/kallsyms.h"
+#include "asm/bug.h"
+#include "stat.h"
+#include "session.h"
+#include "bpf-event.h"
+#include "print_binary.h"
+#include "tool.h"
+#include "../perf.h"
+
+static const char *perf_event__names[] = {
+ [0] = "TOTAL",
+ [PERF_RECORD_MMAP] = "MMAP",
+ [PERF_RECORD_MMAP2] = "MMAP2",
+ [PERF_RECORD_LOST] = "LOST",
+ [PERF_RECORD_COMM] = "COMM",
+ [PERF_RECORD_EXIT] = "EXIT",
+ [PERF_RECORD_THROTTLE] = "THROTTLE",
+ [PERF_RECORD_UNTHROTTLE] = "UNTHROTTLE",
+ [PERF_RECORD_FORK] = "FORK",
+ [PERF_RECORD_READ] = "READ",
+ [PERF_RECORD_SAMPLE] = "SAMPLE",
+ [PERF_RECORD_AUX] = "AUX",
+ [PERF_RECORD_ITRACE_START] = "ITRACE_START",
+ [PERF_RECORD_LOST_SAMPLES] = "LOST_SAMPLES",
+ [PERF_RECORD_SWITCH] = "SWITCH",
+ [PERF_RECORD_SWITCH_CPU_WIDE] = "SWITCH_CPU_WIDE",
+ [PERF_RECORD_NAMESPACES] = "NAMESPACES",
+ [PERF_RECORD_KSYMBOL] = "KSYMBOL",
+ [PERF_RECORD_BPF_EVENT] = "BPF_EVENT",
+ [PERF_RECORD_CGROUP] = "CGROUP",
+ [PERF_RECORD_TEXT_POKE] = "TEXT_POKE",
+ [PERF_RECORD_HEADER_ATTR] = "ATTR",
+ [PERF_RECORD_HEADER_EVENT_TYPE] = "EVENT_TYPE",
+ [PERF_RECORD_HEADER_TRACING_DATA] = "TRACING_DATA",
+ [PERF_RECORD_HEADER_BUILD_ID] = "BUILD_ID",
+ [PERF_RECORD_FINISHED_ROUND] = "FINISHED_ROUND",
+ [PERF_RECORD_ID_INDEX] = "ID_INDEX",
+ [PERF_RECORD_AUXTRACE_INFO] = "AUXTRACE_INFO",
+ [PERF_RECORD_AUXTRACE] = "AUXTRACE",
+ [PERF_RECORD_AUXTRACE_ERROR] = "AUXTRACE_ERROR",
+ [PERF_RECORD_THREAD_MAP] = "THREAD_MAP",
+ [PERF_RECORD_CPU_MAP] = "CPU_MAP",
+ [PERF_RECORD_STAT_CONFIG] = "STAT_CONFIG",
+ [PERF_RECORD_STAT] = "STAT",
+ [PERF_RECORD_STAT_ROUND] = "STAT_ROUND",
+ [PERF_RECORD_EVENT_UPDATE] = "EVENT_UPDATE",
+ [PERF_RECORD_TIME_CONV] = "TIME_CONV",
+ [PERF_RECORD_HEADER_FEATURE] = "FEATURE",
+ [PERF_RECORD_COMPRESSED] = "COMPRESSED",
+};
+
+const char *perf_event__name(unsigned int id)
+{
+ if (id >= ARRAY_SIZE(perf_event__names))
+ return "INVALID";
+ if (!perf_event__names[id])
+ return "UNKNOWN";
+ return perf_event__names[id];
+}
+
+struct process_symbol_args {
+ const char *name;
+ u64 start;
+};
+
+static int find_symbol_cb(void *arg, const char *name, char type,
+ u64 start)
+{
+ struct process_symbol_args *args = arg;
+
+ /*
+ * Must be a function or at least an alias, as in PARISC64, where "_text" is
+ * an 'A' to the same address as "_stext".
+ */
+ if (!(kallsyms__is_function(type) ||
+ type == 'A') || strcmp(name, args->name))
+ return 0;
+
+ args->start = start;
+ return 1;
+}
+
+int kallsyms__get_function_start(const char *kallsyms_filename,
+ const char *symbol_name, u64 *addr)
+{
+ struct process_symbol_args args = { .name = symbol_name, };
+
+ if (kallsyms__parse(kallsyms_filename, &args, find_symbol_cb) <= 0)
+ return -1;
+
+ *addr = args.start;
+ return 0;
+}
+
+void perf_event__read_stat_config(struct perf_stat_config *config,
+ struct perf_record_stat_config *event)
+{
+ unsigned i;
+
+ for (i = 0; i < event->nr; i++) {
+
+ switch (event->data[i].tag) {
+#define CASE(__term, __val) \
+ case PERF_STAT_CONFIG_TERM__##__term: \
+ config->__val = event->data[i].val; \
+ break;
+
+ CASE(AGGR_MODE, aggr_mode)
+ CASE(SCALE, scale)
+ CASE(INTERVAL, interval)
+#undef CASE
+ default:
+ pr_warning("unknown stat config term %" PRI_lu64 "\n",
+ event->data[i].tag);
+ }
+ }
+}
+
+size_t perf_event__fprintf_comm(union perf_event *event, FILE *fp)
+{
+ const char *s;
+
+ if (event->header.misc & PERF_RECORD_MISC_COMM_EXEC)
+ s = " exec";
+ else
+ s = "";
+
+ return fprintf(fp, "%s: %s:%d/%d\n", s, event->comm.comm, event->comm.pid, event->comm.tid);
+}
+
+size_t perf_event__fprintf_namespaces(union perf_event *event, FILE *fp)
+{
+ size_t ret = 0;
+ struct perf_ns_link_info *ns_link_info;
+ u32 nr_namespaces, idx;
+
+ ns_link_info = event->namespaces.link_info;
+ nr_namespaces = event->namespaces.nr_namespaces;
+
+ ret += fprintf(fp, " %d/%d - nr_namespaces: %u\n\t\t[",
+ event->namespaces.pid,
+ event->namespaces.tid,
+ nr_namespaces);
+
+ for (idx = 0; idx < nr_namespaces; idx++) {
+ if (idx && (idx % 4 == 0))
+ ret += fprintf(fp, "\n\t\t ");
+
+ ret += fprintf(fp, "%u/%s: %" PRIu64 "/%#" PRIx64 "%s", idx,
+ perf_ns__name(idx), (u64)ns_link_info[idx].dev,
+ (u64)ns_link_info[idx].ino,
+ ((idx + 1) != nr_namespaces) ? ", " : "]\n");
+ }
+
+ return ret;
+}
+
+size_t perf_event__fprintf_cgroup(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " cgroup: %" PRI_lu64 " %s\n",
+ event->cgroup.id, event->cgroup.path);
+}
+
+int perf_event__process_comm(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_comm_event(machine, event, sample);
+}
+
+int perf_event__process_namespaces(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_namespaces_event(machine, event, sample);
+}
+
+int perf_event__process_cgroup(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_cgroup_event(machine, event, sample);
+}
+
+int perf_event__process_lost(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_lost_event(machine, event, sample);
+}
+
+int perf_event__process_aux(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_aux_event(machine, event);
+}
+
+int perf_event__process_itrace_start(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_itrace_start_event(machine, event);
+}
+
+int perf_event__process_lost_samples(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_lost_samples_event(machine, event, sample);
+}
+
+int perf_event__process_switch(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_switch_event(machine, event);
+}
+
+int perf_event__process_ksymbol(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample __maybe_unused,
+ struct machine *machine)
+{
+ return machine__process_ksymbol(machine, event, sample);
+}
+
+int perf_event__process_bpf(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_bpf(machine, event, sample);
+}
+
+int perf_event__process_text_poke(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_text_poke(machine, event, sample);
+}
+
+size_t perf_event__fprintf_mmap(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64 "]: %c %s\n",
+ event->mmap.pid, event->mmap.tid, event->mmap.start,
+ event->mmap.len, event->mmap.pgoff,
+ (event->header.misc & PERF_RECORD_MISC_MMAP_DATA) ? 'r' : 'x',
+ event->mmap.filename);
+}
+
+size_t perf_event__fprintf_mmap2(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " %d/%d: [%#" PRI_lx64 "(%#" PRI_lx64 ") @ %#" PRI_lx64
+ " %02x:%02x %"PRI_lu64" %"PRI_lu64"]: %c%c%c%c %s\n",
+ event->mmap2.pid, event->mmap2.tid, event->mmap2.start,
+ event->mmap2.len, event->mmap2.pgoff, event->mmap2.maj,
+ event->mmap2.min, event->mmap2.ino,
+ event->mmap2.ino_generation,
+ (event->mmap2.prot & PROT_READ) ? 'r' : '-',
+ (event->mmap2.prot & PROT_WRITE) ? 'w' : '-',
+ (event->mmap2.prot & PROT_EXEC) ? 'x' : '-',
+ (event->mmap2.flags & MAP_SHARED) ? 's' : 'p',
+ event->mmap2.filename);
+}
+
+size_t perf_event__fprintf_thread_map(union perf_event *event, FILE *fp)
+{
+ struct perf_thread_map *threads = thread_map__new_event(&event->thread_map);
+ size_t ret;
+
+ ret = fprintf(fp, " nr: ");
+
+ if (threads)
+ ret += thread_map__fprintf(threads, fp);
+ else
+ ret += fprintf(fp, "failed to get threads from event\n");
+
+ perf_thread_map__put(threads);
+ return ret;
+}
+
+size_t perf_event__fprintf_cpu_map(union perf_event *event, FILE *fp)
+{
+ struct perf_cpu_map *cpus = cpu_map__new_data(&event->cpu_map.data);
+ size_t ret;
+
+ ret = fprintf(fp, ": ");
+
+ if (cpus)
+ ret += cpu_map__fprintf(cpus, fp);
+ else
+ ret += fprintf(fp, "failed to get cpumap from event\n");
+
+ perf_cpu_map__put(cpus);
+ return ret;
+}
+
+int perf_event__process_mmap(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_mmap_event(machine, event, sample);
+}
+
+int perf_event__process_mmap2(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_mmap2_event(machine, event, sample);
+}
+
+size_t perf_event__fprintf_task(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, "(%d:%d):(%d:%d)\n",
+ event->fork.pid, event->fork.tid,
+ event->fork.ppid, event->fork.ptid);
+}
+
+int perf_event__process_fork(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_fork_event(machine, event, sample);
+}
+
+int perf_event__process_exit(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_exit_event(machine, event, sample);
+}
+
+size_t perf_event__fprintf_aux(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " offset: %#"PRI_lx64" size: %#"PRI_lx64" flags: %#"PRI_lx64" [%s%s%s]\n",
+ event->aux.aux_offset, event->aux.aux_size,
+ event->aux.flags,
+ event->aux.flags & PERF_AUX_FLAG_TRUNCATED ? "T" : "",
+ event->aux.flags & PERF_AUX_FLAG_OVERWRITE ? "O" : "",
+ event->aux.flags & PERF_AUX_FLAG_PARTIAL ? "P" : "");
+}
+
+size_t perf_event__fprintf_itrace_start(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " pid: %u tid: %u\n",
+ event->itrace_start.pid, event->itrace_start.tid);
+}
+
+size_t perf_event__fprintf_switch(union perf_event *event, FILE *fp)
+{
+ bool out = event->header.misc & PERF_RECORD_MISC_SWITCH_OUT;
+ const char *in_out = !out ? "IN " :
+ !(event->header.misc & PERF_RECORD_MISC_SWITCH_OUT_PREEMPT) ?
+ "OUT " : "OUT preempt";
+
+ if (event->header.type == PERF_RECORD_SWITCH)
+ return fprintf(fp, " %s\n", in_out);
+
+ return fprintf(fp, " %s %s pid/tid: %5d/%-5d\n",
+ in_out, out ? "next" : "prev",
+ event->context_switch.next_prev_pid,
+ event->context_switch.next_prev_tid);
+}
+
+static size_t perf_event__fprintf_lost(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " lost %" PRI_lu64 "\n", event->lost.lost);
+}
+
+size_t perf_event__fprintf_ksymbol(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " addr %" PRI_lx64 " len %u type %u flags 0x%x name %s\n",
+ event->ksymbol.addr, event->ksymbol.len,
+ event->ksymbol.ksym_type,
+ event->ksymbol.flags, event->ksymbol.name);
+}
+
+size_t perf_event__fprintf_bpf(union perf_event *event, FILE *fp)
+{
+ return fprintf(fp, " type %u, flags %u, id %u\n",
+ event->bpf.type, event->bpf.flags, event->bpf.id);
+}
+
+static int text_poke_printer(enum binary_printer_ops op, unsigned int val,
+ void *extra, FILE *fp)
+{
+ bool old = *(bool *)extra;
+
+ switch ((int)op) {
+ case BINARY_PRINT_LINE_BEGIN:
+ return fprintf(fp, " %s bytes:", old ? "Old" : "New");
+ case BINARY_PRINT_NUM_DATA:
+ return fprintf(fp, " %02x", val);
+ case BINARY_PRINT_LINE_END:
+ return fprintf(fp, "\n");
+ default:
+ return 0;
+ }
+}
+
+size_t perf_event__fprintf_text_poke(union perf_event *event, struct machine *machine, FILE *fp)
+{
+ struct perf_record_text_poke_event *tp = &event->text_poke;
+ size_t ret;
+ bool old;
+
+ ret = fprintf(fp, " %" PRI_lx64 " ", tp->addr);
+ if (machine) {
+ struct addr_location al;
+
+ al.map = maps__find(&machine->kmaps, tp->addr);
+ if (al.map && map__load(al.map) >= 0) {
+ al.addr = al.map->map_ip(al.map, tp->addr);
+ al.sym = map__find_symbol(al.map, al.addr);
+ if (al.sym)
+ ret += symbol__fprintf_symname_offs(al.sym, &al, fp);
+ }
+ }
+ ret += fprintf(fp, " old len %u new len %u\n", tp->old_len, tp->new_len);
+ old = true;
+ ret += binary__fprintf(tp->bytes, tp->old_len, 16, text_poke_printer,
+ &old, fp);
+ old = false;
+ ret += binary__fprintf(tp->bytes + tp->old_len, tp->new_len, 16,
+ text_poke_printer, &old, fp);
+ return ret;
+}
+
+size_t perf_event__fprintf(union perf_event *event, struct machine *machine, FILE *fp)
+{
+ size_t ret = fprintf(fp, "PERF_RECORD_%s",
+ perf_event__name(event->header.type));
+
+ switch (event->header.type) {
+ case PERF_RECORD_COMM:
+ ret += perf_event__fprintf_comm(event, fp);
+ break;
+ case PERF_RECORD_FORK:
+ case PERF_RECORD_EXIT:
+ ret += perf_event__fprintf_task(event, fp);
+ break;
+ case PERF_RECORD_MMAP:
+ ret += perf_event__fprintf_mmap(event, fp);
+ break;
+ case PERF_RECORD_NAMESPACES:
+ ret += perf_event__fprintf_namespaces(event, fp);
+ break;
+ case PERF_RECORD_CGROUP:
+ ret += perf_event__fprintf_cgroup(event, fp);
+ break;
+ case PERF_RECORD_MMAP2:
+ ret += perf_event__fprintf_mmap2(event, fp);
+ break;
+ case PERF_RECORD_AUX:
+ ret += perf_event__fprintf_aux(event, fp);
+ break;
+ case PERF_RECORD_ITRACE_START:
+ ret += perf_event__fprintf_itrace_start(event, fp);
+ break;
+ case PERF_RECORD_SWITCH:
+ case PERF_RECORD_SWITCH_CPU_WIDE:
+ ret += perf_event__fprintf_switch(event, fp);
+ break;
+ case PERF_RECORD_LOST:
+ ret += perf_event__fprintf_lost(event, fp);
+ break;
+ case PERF_RECORD_KSYMBOL:
+ ret += perf_event__fprintf_ksymbol(event, fp);
+ break;
+ case PERF_RECORD_BPF_EVENT:
+ ret += perf_event__fprintf_bpf(event, fp);
+ break;
+ case PERF_RECORD_TEXT_POKE:
+ ret += perf_event__fprintf_text_poke(event, machine, fp);
+ break;
+ default:
+ ret += fprintf(fp, "\n");
+ }
+
+ return ret;
+}
+
+int perf_event__process(struct perf_tool *tool __maybe_unused,
+ union perf_event *event,
+ struct perf_sample *sample,
+ struct machine *machine)
+{
+ return machine__process_event(machine, event, sample);
+}
+
+struct map *thread__find_map(struct thread *thread, u8 cpumode, u64 addr,
+ struct addr_location *al)
+{
+ struct maps *maps = thread->maps;
+ struct machine *machine = maps->machine;
+ bool load_map = false;
+
+ al->maps = maps;
+ al->thread = thread;
+ al->addr = addr;
+ al->cpumode = cpumode;
+ al->filtered = 0;
+
+ if (machine == NULL) {
+ al->map = NULL;
+ return NULL;
+ }
+
+ if (cpumode == PERF_RECORD_MISC_KERNEL && perf_host) {
+ al->level = 'k';
+ al->maps = maps = &machine->kmaps;
+ load_map = true;
+ } else if (cpumode == PERF_RECORD_MISC_USER && perf_host) {
+ al->level = '.';
+ } else if (cpumode == PERF_RECORD_MISC_GUEST_KERNEL && perf_guest) {
+ al->level = 'g';
+ al->maps = maps = &machine->kmaps;
+ load_map = true;
+ } else if (cpumode == PERF_RECORD_MISC_GUEST_USER && perf_guest) {
+ al->level = 'u';
+ } else {
+ al->level = 'H';
+ al->map = NULL;
+
+ if ((cpumode == PERF_RECORD_MISC_GUEST_USER ||
+ cpumode == PERF_RECORD_MISC_GUEST_KERNEL) &&
+ !perf_guest)
+ al->filtered |= (1 << HIST_FILTER__GUEST);
+ if ((cpumode == PERF_RECORD_MISC_USER ||
+ cpumode == PERF_RECORD_MISC_KERNEL) &&
+ !perf_host)
+ al->filtered |= (1 << HIST_FILTER__HOST);
+
+ return NULL;
+ }
+
+ al->map = maps__find(maps, al->addr);
+ if (al->map != NULL) {
+ /*
+ * Kernel maps might be changed when loading symbols so loading
+ * must be done prior to using kernel maps.
+ */
+ if (load_map)
+ map__load(al->map);
+ al->addr = al->map->map_ip(al->map, al->addr);
+ }
+
+ return al->map;
+}
+
+/*
+ * For branch stacks or branch samples, the sample cpumode might not be correct
+ * because it applies only to the sample 'ip' and not necessary to 'addr' or
+ * branch stack addresses. If possible, use a fallback to deal with those cases.
+ */
+struct map *thread__find_map_fb(struct thread *thread, u8 cpumode, u64 addr,
+ struct addr_location *al)
+{
+ struct map *map = thread__find_map(thread, cpumode, addr, al);
+ struct machine *machine = thread->maps->machine;
+ u8 addr_cpumode = machine__addr_cpumode(machine, cpumode, addr);
+
+ if (map || addr_cpumode == cpumode)
+ return map;
+
+ return thread__find_map(thread, addr_cpumode, addr, al);
+}
+
+struct symbol *thread__find_symbol(struct thread *thread, u8 cpumode,
+ u64 addr, struct addr_location *al)
+{
+ al->sym = NULL;
+ if (thread__find_map(thread, cpumode, addr, al))
+ al->sym = map__find_symbol(al->map, al->addr);
+ return al->sym;
+}
+
+struct symbol *thread__find_symbol_fb(struct thread *thread, u8 cpumode,
+ u64 addr, struct addr_location *al)
+{
+ al->sym = NULL;
+ if (thread__find_map_fb(thread, cpumode, addr, al))
+ al->sym = map__find_symbol(al->map, al->addr);
+ return al->sym;
+}
+
+/*
+ * Callers need to drop the reference to al->thread, obtained in
+ * machine__findnew_thread()
+ */
+int machine__resolve(struct machine *machine, struct addr_location *al,
+ struct perf_sample *sample)
+{
+ struct thread *thread = machine__findnew_thread(machine, sample->pid,
+ sample->tid);
+
+ if (thread == NULL)
+ return -1;
+
+ dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
+ thread__find_map(thread, sample->cpumode, sample->ip, al);
+ dump_printf(" ...... dso: %s\n",
+ al->map ? al->map->dso->long_name :
+ al->level == 'H' ? "[hypervisor]" : "<not found>");
+
+ if (thread__is_filtered(thread))
+ al->filtered |= (1 << HIST_FILTER__THREAD);
+
+ al->sym = NULL;
+ al->cpu = sample->cpu;
+ al->socket = -1;
+ al->srcline = NULL;
+
+ if (al->cpu >= 0) {
+ struct perf_env *env = machine->env;
+
+ if (env && env->cpu)
+ al->socket = env->cpu[al->cpu].socket_id;
+ }
+
+ if (al->map) {
+ struct dso *dso = al->map->dso;
+
+ if (symbol_conf.dso_list &&
+ (!dso || !(strlist__has_entry(symbol_conf.dso_list,
+ dso->short_name) ||
+ (dso->short_name != dso->long_name &&
+ strlist__has_entry(symbol_conf.dso_list,
+ dso->long_name))))) {
+ al->filtered |= (1 << HIST_FILTER__DSO);
+ }
+
+ al->sym = map__find_symbol(al->map, al->addr);
+ } else if (symbol_conf.dso_list) {
+ al->filtered |= (1 << HIST_FILTER__DSO);
+ }
+
+ if (symbol_conf.sym_list) {
+ int ret = 0;
+ char al_addr_str[32];
+ size_t sz = sizeof(al_addr_str);
+
+ if (al->sym) {
+ ret = strlist__has_entry(symbol_conf.sym_list,
+ al->sym->name);
+ }
+ if (!ret && al->sym) {
+ snprintf(al_addr_str, sz, "0x%"PRIx64,
+ al->map->unmap_ip(al->map, al->sym->start));
+ ret = strlist__has_entry(symbol_conf.sym_list,
+ al_addr_str);
+ }
+ if (!ret)
+ al->filtered |= (1 << HIST_FILTER__SYMBOL);
+ }
+
+ return 0;
+}
+
+/*
+ * The preprocess_sample method will return with reference counts for the
+ * in it, when done using (and perhaps getting ref counts if needing to
+ * keep a pointer to one of those entries) it must be paired with
+ * addr_location__put(), so that the refcounts can be decremented.
+ */
+void addr_location__put(struct addr_location *al)
+{
+ thread__zput(al->thread);
+}
+
+bool is_bts_event(struct perf_event_attr *attr)
+{
+ return attr->type == PERF_TYPE_HARDWARE &&
+ (attr->config & PERF_COUNT_HW_BRANCH_INSTRUCTIONS) &&
+ attr->sample_period == 1;
+}
+
+bool sample_addr_correlates_sym(struct perf_event_attr *attr)
+{
+ if (attr->type == PERF_TYPE_SOFTWARE &&
+ (attr->config == PERF_COUNT_SW_PAGE_FAULTS ||
+ attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN ||
+ attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ))
+ return true;
+
+ if (is_bts_event(attr))
+ return true;
+
+ return false;
+}
+
+void thread__resolve(struct thread *thread, struct addr_location *al,
+ struct perf_sample *sample)
+{
+ thread__find_map_fb(thread, sample->cpumode, sample->addr, al);
+
+ al->cpu = sample->cpu;
+ al->sym = NULL;
+
+ if (al->map)
+ al->sym = map__find_symbol(al->map, al->addr);
+}