perf thread: Introduce thread__find_map()

Out of thread__find_add_map(..., MAP__FUNCTION, ...), idea here is to
continue removing references to MAP__{FUNCTION,VARIABLE} ahead of
getting both types of symbols in the same rbtree, as various places do
two lookups, looking first at MAP__FUNCTION, then at MAP__VARIABLE.

So thread__find_map() will eventually do just that, and 'struct symbol'
will have the symbol type, for code that cares about that.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: https://lkml.kernel.org/n/tip-q27xee34l4izpfau49w103s6@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
index 40fe919..92677d8 100644 (file)
--- a/tools/perf/builtin-inject.c
+++ b/tools/perf/builtin-inject.c
@@ -440,7 +440,7 @@ static int perf_event__inject_buildid(struct perf_tool *tool,
                goto repipe;
        }
 
-       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al);
+       thread__find_map(thread, sample->cpumode, sample->ip, &al);
 
        if (al.map != NULL) {
                if (!al.map->dso->hit) {

diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index e0a9845..5ec1c73 100644 (file)
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -717,8 +717,8 @@ static int perf_sample__fprintf_brstack(struct perf_sample *sample,
                if (PRINT_FIELD(DSO)) {
                        memset(&alf, 0, sizeof(alf));
                        memset(&alt, 0, sizeof(alt));
-                       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
-                       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
+                       thread__find_map(thread, sample->cpumode, from, &alf);
+                       thread__find_map(thread, sample->cpumode, to, &alt);
                }
 
                printed += fprintf(fp, " 0x%"PRIx64, from);
@@ -764,11 +764,11 @@ static int perf_sample__fprintf_brstacksym(struct perf_sample *sample,
                from = br->entries[i].from;
                to   = br->entries[i].to;
 
-               thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
+               thread__find_map(thread, sample->cpumode, from, &alf);
                if (alf.map)
                        alf.sym = map__find_symbol(alf.map, alf.addr);
 
-               thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
+               thread__find_map(thread, sample->cpumode, to, &alt);
                if (alt.map)
                        alt.sym = map__find_symbol(alt.map, alt.addr);
 
@@ -814,11 +814,11 @@ static int perf_sample__fprintf_brstackoff(struct perf_sample *sample,
                from = br->entries[i].from;
                to   = br->entries[i].to;
 
-               thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, from, &alf);
+               thread__find_map(thread, sample->cpumode, from, &alf);
                if (alf.map && !alf.map->dso->adjust_symbols)
                        from = map__map_ip(alf.map, from);
 
-               thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, to, &alt);
+               thread__find_map(thread, sample->cpumode, to, &alt);
                if (alt.map && !alt.map->dso->adjust_symbols)
                        to = map__map_ip(alt.map, to);
 
@@ -882,7 +882,7 @@ static int grab_bb(u8 *buffer, u64 start, u64 end,
                return 0;
        }
 
-       thread__find_addr_map(thread, *cpumode, MAP__FUNCTION, start, &al);
+       thread__find_map(thread, *cpumode, start, &al);
        if (!al.map || !al.map->dso) {
                pr_debug("\tcannot resolve %" PRIx64 "-%" PRIx64 "\n", start, end);
                return 0;
@@ -933,10 +933,9 @@ static int ip__fprintf_sym(uint64_t addr, struct thread *thread,
 
        memset(&al, 0, sizeof(al));
 
-       thread__find_addr_map(thread, cpumode, MAP__FUNCTION, addr, &al);
+       thread__find_map(thread, cpumode, addr, &al);
        if (!al.map)
-               thread__find_addr_map(thread, cpumode, MAP__VARIABLE,
-                                     addr, &al);
+               __thread__find_map(thread, cpumode, MAP__VARIABLE, addr, &al);
        if ((*lastsym) && al.addr >= (*lastsym)->start && al.addr < (*lastsym)->end)
                return 0;
 

diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index 9993635..5b0a554 100644 (file)
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -236,14 +236,14 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
 
        pr_debug("Reading object code for memory address: %#"PRIx64"\n", addr);
 
-       thread__find_addr_map(thread, cpumode, MAP__FUNCTION, addr, &al);
+       thread__find_map(thread, cpumode, addr, &al);
        if (!al.map || !al.map->dso) {
                if (cpumode == PERF_RECORD_MISC_HYPERVISOR) {
                        pr_debug("Hypervisor address can not be resolved - skipping\n");
                        return 0;
                }
 
-               pr_debug("thread__find_addr_map failed\n");
+               pr_debug("thread__find_map failed\n");
                return -1;
        }
 

diff --git a/tools/perf/tests/mmap-thread-lookup.c b/tools/perf/tests/mmap-thread-lookup.c
index 868d82b..b1af249 100644 (file)
--- a/tools/perf/tests/mmap-thread-lookup.c
+++ b/tools/perf/tests/mmap-thread-lookup.c
@@ -188,9 +188,8 @@ static int mmap_events(synth_cb synth)
 
                pr_debug("looking for map %p\n", td->map);
 
-               thread__find_addr_map(thread,
-                                     PERF_RECORD_MISC_USER, MAP__FUNCTION,
-                                     (unsigned long) (td->map + 1), &al);
+               thread__find_map(thread, PERF_RECORD_MISC_USER,
+                                (unsigned long) (td->map + 1), &al);
 
                thread__put(thread);
 
@@ -218,7 +217,7 @@ static int mmap_events(synth_cb synth)
  *   perf_event__synthesize_threads    (global)
  *
  * We test we can find all memory maps via:
- *   thread__find_addr_map
+ *   thread__find_map
  *
  * by using all thread objects.
  */

diff --git a/tools/perf/util/build-id.c b/tools/perf/util/build-id.c
index 537eadd..b512dc8 100644 (file)
--- a/tools/perf/util/build-id.c
+++ b/tools/perf/util/build-id.c
@@ -47,7 +47,7 @@ int build_id__mark_dso_hit(struct perf_tool *tool __maybe_unused,
                return -1;
        }
 
-       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, &al);
+       thread__find_map(thread, sample->cpumode, sample->ip, &al);
 
        if (al.map != NULL)
                al.map->dso->hit = 1;

diff --git a/tools/perf/util/cs-etm.c b/tools/perf/util/cs-etm.c
index 40020b1..8fe573d 100644 (file)
--- a/tools/perf/util/cs-etm.c
+++ b/tools/perf/util/cs-etm.c
@@ -269,7 +269,7 @@ static u32 cs_etm__mem_access(struct cs_etm_queue *etmq, u64 address,
                thread = etmq->etm->unknown_thread;
        }
 
-       thread__find_addr_map(thread, cpumode, MAP__FUNCTION, address, &al);
+       thread__find_map(thread, cpumode, address, &al);
 
        if (!al.map || !al.map->dso)
                return 0;

diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 98ff3a6..baa97d0 100644 (file)
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -1489,9 +1489,8 @@ int perf_event__process(struct perf_tool *tool __maybe_unused,
        return machine__process_event(machine, event, sample);
 }
 
-void thread__find_addr_map(struct thread *thread, u8 cpumode,
-                          enum map_type type, u64 addr,
-                          struct addr_location *al)
+void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
+                       u64 addr, struct addr_location *al)
 {
        struct map_groups *mg = thread->mg;
        struct machine *machine = mg->machine;
@@ -1569,7 +1568,7 @@ void thread__find_addr_location(struct thread *thread,
                                u8 cpumode, enum map_type type, u64 addr,
                                struct addr_location *al)
 {
-       thread__find_addr_map(thread, cpumode, type, addr, al);
+       __thread__find_map(thread, cpumode, type, addr, al);
        if (al->map != NULL)
                al->sym = map__find_symbol(al->map, al->addr);
        else
@@ -1590,7 +1589,7 @@ int machine__resolve(struct machine *machine, struct addr_location *al,
                return -1;
 
        dump_printf(" ... thread: %s:%d\n", thread__comm_str(thread), thread->tid);
-       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->ip, al);
+       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>");
@@ -1669,10 +1668,11 @@ bool sample_addr_correlates_sym(struct perf_event_attr *attr)
 void thread__resolve(struct thread *thread, struct addr_location *al,
                     struct perf_sample *sample)
 {
-       thread__find_addr_map(thread, sample->cpumode, MAP__FUNCTION, sample->addr, al);
-       if (!al->map)
-               thread__find_addr_map(thread, sample->cpumode, MAP__VARIABLE,
-                                     sample->addr, al);
+       thread__find_map(thread, sample->cpumode, sample->addr, al);
+       if (!al->map) {
+               __thread__find_map(thread, sample->cpumode, MAP__VARIABLE,
+                                  sample->addr, al);
+       }
 
        al->cpu = sample->cpu;
        al->sym = NULL;

diff --git a/tools/perf/util/intel-bts.c b/tools/perf/util/intel-bts.c
index 72db274..ea0ce85 100644 (file)
--- a/tools/perf/util/intel-bts.c
+++ b/tools/perf/util/intel-bts.c
@@ -335,7 +335,7 @@ static int intel_bts_get_next_insn(struct intel_bts_queue *btsq, u64 ip)
        if (!thread)
                return -1;
 
-       thread__find_addr_map(thread, cpumode, MAP__FUNCTION, ip, &al);
+       thread__find_map(thread, cpumode, ip, &al);
        if (!al.map || !al.map->dso)
                goto out_put;
 

diff --git a/tools/perf/util/intel-pt.c b/tools/perf/util/intel-pt.c
index 0effaff..441e681 100644 (file)
--- a/tools/perf/util/intel-pt.c
+++ b/tools/perf/util/intel-pt.c
@@ -442,7 +442,7 @@ static int intel_pt_walk_next_insn(struct intel_pt_insn *intel_pt_insn,
        }
 
        while (1) {
-               thread__find_addr_map(thread, cpumode, MAP__FUNCTION, *ip, &al);
+               thread__find_map(thread, cpumode, *ip, &al);
                if (!al.map || !al.map->dso)
                        return -EINVAL;
 
@@ -596,7 +596,7 @@ static int __intel_pt_pgd_ip(uint64_t ip, void *data)
        if (!thread)
                return -EINVAL;
 
-       thread__find_addr_map(thread, cpumode, MAP__FUNCTION, ip, &al);
+       thread__find_map(thread, cpumode, ip, &al);
        if (!al.map || !al.map->dso)
                return -EINVAL;
 

diff --git a/tools/perf/util/thread.h b/tools/perf/util/thread.h
index 14d44c3..52c788f 100644 (file)
--- a/tools/perf/util/thread.h
+++ b/tools/perf/util/thread.h
@@ -92,9 +92,14 @@ size_t thread__fprintf(struct thread *thread, FILE *fp);
 
 struct thread *thread__main_thread(struct machine *machine, struct thread *thread);
 
-void thread__find_addr_map(struct thread *thread,
-                          u8 cpumode, enum map_type type, u64 addr,
-                          struct addr_location *al);
+void __thread__find_map(struct thread *thread, u8 cpumode, enum map_type type,
+                       u64 addr, struct addr_location *al);
+
+static inline void thread__find_map(struct thread *thread, u8 cpumode,
+                                   u64 addr, struct addr_location *al)
+{
+       __thread__find_map(thread, cpumode, MAP__FUNCTION, addr, al);
+}
 
 void thread__find_addr_location(struct thread *thread,
                                u8 cpumode, enum map_type type, u64 addr,

diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 7bdd239..1ce8744 100644 (file)
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -103,16 +103,15 @@ static int access_dso_mem(struct unwind_info *ui, Dwarf_Addr addr,
        struct addr_location al;
        ssize_t size;
 
-       thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-                             MAP__FUNCTION, addr, &al);
+       thread__find_map(ui->thread, PERF_RECORD_MISC_USER, addr, &al);
        if (!al.map) {
                /*
                 * We've seen cases (softice) where DWARF unwinder went
                 * through non executable mmaps, which we need to lookup
                 * in MAP__VARIABLE tree.
                 */
-               thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-                                     MAP__VARIABLE, addr, &al);
+               __thread__find_map(ui->thread, PERF_RECORD_MISC_USER,
+                                  MAP__VARIABLE, addr, &al);
        }
 
        if (!al.map) {

diff --git a/tools/perf/util/unwind-libunwind-local.c b/tools/perf/util/unwind-libunwind-local.c
index af87304..33afca5 100644 (file)
--- a/tools/perf/util/unwind-libunwind-local.c
+++ b/tools/perf/util/unwind-libunwind-local.c
@@ -367,16 +367,15 @@ static struct map *find_map(unw_word_t ip, struct unwind_info *ui)
 {
        struct addr_location al;
 
-       thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-                             MAP__FUNCTION, ip, &al);
+       thread__find_map(ui->thread, PERF_RECORD_MISC_USER, ip, &al);
        if (!al.map) {
                /*
                 * We've seen cases (softice) where DWARF unwinder went
                 * through non executable mmaps, which we need to lookup
                 * in MAP__VARIABLE tree.
                 */
-               thread__find_addr_map(ui->thread, PERF_RECORD_MISC_USER,
-                                     MAP__VARIABLE, ip, &al);
+               __thread__find_map(ui->thread, PERF_RECORD_MISC_USER,
+                                  MAP__VARIABLE, ip, &al);
        }
        return al.map;
 }