1 #include <linux/types.h>
10 static const char *perf_event__names
[] = {
12 [PERF_RECORD_MMAP
] = "MMAP",
13 [PERF_RECORD_LOST
] = "LOST",
14 [PERF_RECORD_COMM
] = "COMM",
15 [PERF_RECORD_EXIT
] = "EXIT",
16 [PERF_RECORD_THROTTLE
] = "THROTTLE",
17 [PERF_RECORD_UNTHROTTLE
] = "UNTHROTTLE",
18 [PERF_RECORD_FORK
] = "FORK",
19 [PERF_RECORD_READ
] = "READ",
20 [PERF_RECORD_SAMPLE
] = "SAMPLE",
21 [PERF_RECORD_HEADER_ATTR
] = "ATTR",
22 [PERF_RECORD_HEADER_EVENT_TYPE
] = "EVENT_TYPE",
23 [PERF_RECORD_HEADER_TRACING_DATA
] = "TRACING_DATA",
24 [PERF_RECORD_HEADER_BUILD_ID
] = "BUILD_ID",
25 [PERF_RECORD_FINISHED_ROUND
] = "FINISHED_ROUND",
28 const char *perf_event__name(unsigned int id
)
30 if (id
>= ARRAY_SIZE(perf_event__names
))
32 if (!perf_event__names
[id
])
34 return perf_event__names
[id
];
37 static struct perf_sample synth_sample
= {
46 static pid_t
perf_event__synthesize_comm(union perf_event
*event
, pid_t pid
,
47 int full
, perf_event__handler_t process
,
48 struct perf_session
*session
)
50 char filename
[PATH_MAX
];
55 struct dirent dirent
, *next
;
58 snprintf(filename
, sizeof(filename
), "/proc/%d/status", pid
);
60 fp
= fopen(filename
, "r");
64 * We raced with a task exiting - just return:
66 pr_debug("couldn't open %s\n", filename
);
70 memset(&event
->comm
, 0, sizeof(event
->comm
));
72 while (!event
->comm
.comm
[0] || !event
->comm
.pid
) {
73 if (fgets(bf
, sizeof(bf
), fp
) == NULL
) {
74 pr_warning("couldn't get COMM and pgid, malformed %s\n", filename
);
78 if (memcmp(bf
, "Name:", 5) == 0) {
80 while (*name
&& isspace(*name
))
82 size
= strlen(name
) - 1;
83 memcpy(event
->comm
.comm
, name
, size
++);
84 } else if (memcmp(bf
, "Tgid:", 5) == 0) {
86 while (*tgids
&& isspace(*tgids
))
88 tgid
= event
->comm
.pid
= atoi(tgids
);
92 event
->comm
.header
.type
= PERF_RECORD_COMM
;
93 size
= ALIGN(size
, sizeof(u64
));
94 memset(event
->comm
.comm
+ size
, 0, session
->id_hdr_size
);
95 event
->comm
.header
.size
= (sizeof(event
->comm
) -
96 (sizeof(event
->comm
.comm
) - size
) +
97 session
->id_hdr_size
);
99 event
->comm
.tid
= pid
;
101 process(event
, &synth_sample
, session
);
105 snprintf(filename
, sizeof(filename
), "/proc/%d/task", pid
);
107 tasks
= opendir(filename
);
111 while (!readdir_r(tasks
, &dirent
, &next
) && next
) {
113 pid
= strtol(dirent
.d_name
, &end
, 10);
117 event
->comm
.tid
= pid
;
119 process(event
, &synth_sample
, session
);
129 static int perf_event__synthesize_mmap_events(union perf_event
*event
,
130 pid_t pid
, pid_t tgid
,
131 perf_event__handler_t process
,
132 struct perf_session
*session
)
134 char filename
[PATH_MAX
];
137 snprintf(filename
, sizeof(filename
), "/proc/%d/maps", pid
);
139 fp
= fopen(filename
, "r");
142 * We raced with a task exiting - just return:
144 pr_debug("couldn't open %s\n", filename
);
148 event
->header
.type
= PERF_RECORD_MMAP
;
150 * Just like the kernel, see __perf_event_mmap in kernel/perf_event.c
152 event
->header
.misc
= PERF_RECORD_MISC_USER
;
155 char bf
[BUFSIZ
], *pbf
= bf
;
158 if (fgets(bf
, sizeof(bf
), fp
) == NULL
)
161 /* 00400000-0040c000 r-xp 00000000 fd:01 41038 /bin/cat */
162 n
= hex2u64(pbf
, &event
->mmap
.start
);
166 n
= hex2u64(pbf
, &event
->mmap
.len
);
170 if (*pbf
== 'x') { /* vm_exec */
171 char *execname
= strchr(bf
, '/');
174 if (execname
== NULL
)
175 execname
= strstr(bf
, "[vdso]");
177 if (execname
== NULL
)
181 n
= hex2u64(pbf
, &event
->mmap
.pgoff
);
183 size
= strlen(execname
);
184 execname
[size
- 1] = '\0'; /* Remove \n */
185 memcpy(event
->mmap
.filename
, execname
, size
);
186 size
= ALIGN(size
, sizeof(u64
));
187 event
->mmap
.len
-= event
->mmap
.start
;
188 event
->mmap
.header
.size
= (sizeof(event
->mmap
) -
189 (sizeof(event
->mmap
.filename
) - size
));
190 memset(event
->mmap
.filename
+ size
, 0, session
->id_hdr_size
);
191 event
->mmap
.header
.size
+= session
->id_hdr_size
;
192 event
->mmap
.pid
= tgid
;
193 event
->mmap
.tid
= pid
;
195 process(event
, &synth_sample
, session
);
203 int perf_event__synthesize_modules(perf_event__handler_t process
,
204 struct perf_session
*session
,
205 struct machine
*machine
)
208 struct map_groups
*kmaps
= &machine
->kmaps
;
209 union perf_event
*event
= zalloc((sizeof(event
->mmap
) +
210 session
->id_hdr_size
));
212 pr_debug("Not enough memory synthesizing mmap event "
213 "for kernel modules\n");
217 event
->header
.type
= PERF_RECORD_MMAP
;
220 * kernel uses 0 for user space maps, see kernel/perf_event.c
223 if (machine__is_host(machine
))
224 event
->header
.misc
= PERF_RECORD_MISC_KERNEL
;
226 event
->header
.misc
= PERF_RECORD_MISC_GUEST_KERNEL
;
228 for (nd
= rb_first(&kmaps
->maps
[MAP__FUNCTION
]);
229 nd
; nd
= rb_next(nd
)) {
231 struct map
*pos
= rb_entry(nd
, struct map
, rb_node
);
233 if (pos
->dso
->kernel
)
236 size
= ALIGN(pos
->dso
->long_name_len
+ 1, sizeof(u64
));
237 event
->mmap
.header
.type
= PERF_RECORD_MMAP
;
238 event
->mmap
.header
.size
= (sizeof(event
->mmap
) -
239 (sizeof(event
->mmap
.filename
) - size
));
240 memset(event
->mmap
.filename
+ size
, 0, session
->id_hdr_size
);
241 event
->mmap
.header
.size
+= session
->id_hdr_size
;
242 event
->mmap
.start
= pos
->start
;
243 event
->mmap
.len
= pos
->end
- pos
->start
;
244 event
->mmap
.pid
= machine
->pid
;
246 memcpy(event
->mmap
.filename
, pos
->dso
->long_name
,
247 pos
->dso
->long_name_len
+ 1);
248 process(event
, &synth_sample
, session
);
255 static int __event__synthesize_thread(union perf_event
*comm_event
,
256 union perf_event
*mmap_event
,
257 pid_t pid
, perf_event__handler_t process
,
258 struct perf_session
*session
)
260 pid_t tgid
= perf_event__synthesize_comm(comm_event
, pid
, 1, process
,
264 return perf_event__synthesize_mmap_events(mmap_event
, pid
, tgid
,
268 int perf_event__synthesize_thread(pid_t pid
, perf_event__handler_t process
,
269 struct perf_session
*session
)
271 union perf_event
*comm_event
, *mmap_event
;
274 comm_event
= malloc(sizeof(comm_event
->comm
) + session
->id_hdr_size
);
275 if (comm_event
== NULL
)
278 mmap_event
= malloc(sizeof(mmap_event
->mmap
) + session
->id_hdr_size
);
279 if (mmap_event
== NULL
)
282 err
= __event__synthesize_thread(comm_event
, mmap_event
, pid
,
291 int perf_event__synthesize_threads(perf_event__handler_t process
,
292 struct perf_session
*session
)
295 struct dirent dirent
, *next
;
296 union perf_event
*comm_event
, *mmap_event
;
299 comm_event
= malloc(sizeof(comm_event
->comm
) + session
->id_hdr_size
);
300 if (comm_event
== NULL
)
303 mmap_event
= malloc(sizeof(mmap_event
->mmap
) + session
->id_hdr_size
);
304 if (mmap_event
== NULL
)
307 proc
= opendir("/proc");
311 while (!readdir_r(proc
, &dirent
, &next
) && next
) {
313 pid_t pid
= strtol(dirent
.d_name
, &end
, 10);
315 if (*end
) /* only interested in proper numerical dirents */
318 __event__synthesize_thread(comm_event
, mmap_event
, pid
,
332 struct process_symbol_args
{
337 static int find_symbol_cb(void *arg
, const char *name
, char type
,
338 u64 start
, u64 end __used
)
340 struct process_symbol_args
*args
= arg
;
343 * Must be a function or at least an alias, as in PARISC64, where "_text" is
344 * an 'A' to the same address as "_stext".
346 if (!(symbol_type__is_a(type
, MAP__FUNCTION
) ||
347 type
== 'A') || strcmp(name
, args
->name
))
354 int perf_event__synthesize_kernel_mmap(perf_event__handler_t process
,
355 struct perf_session
*session
,
356 struct machine
*machine
,
357 const char *symbol_name
)
360 const char *filename
, *mmap_name
;
362 char name_buff
[PATH_MAX
];
366 * We should get this from /sys/kernel/sections/.text, but till that is
367 * available use this, and after it is use this as a fallback for older
370 struct process_symbol_args args
= { .name
= symbol_name
, };
371 union perf_event
*event
= zalloc((sizeof(event
->mmap
) +
372 session
->id_hdr_size
));
374 pr_debug("Not enough memory synthesizing mmap event "
375 "for kernel modules\n");
379 mmap_name
= machine__mmap_name(machine
, name_buff
, sizeof(name_buff
));
380 if (machine__is_host(machine
)) {
382 * kernel uses PERF_RECORD_MISC_USER for user space maps,
383 * see kernel/perf_event.c __perf_event_mmap
385 event
->header
.misc
= PERF_RECORD_MISC_KERNEL
;
386 filename
= "/proc/kallsyms";
388 event
->header
.misc
= PERF_RECORD_MISC_GUEST_KERNEL
;
389 if (machine__is_default_guest(machine
))
390 filename
= (char *) symbol_conf
.default_guest_kallsyms
;
392 sprintf(path
, "%s/proc/kallsyms", machine
->root_dir
);
397 if (kallsyms__parse(filename
, &args
, find_symbol_cb
) <= 0)
400 map
= machine
->vmlinux_maps
[MAP__FUNCTION
];
401 size
= snprintf(event
->mmap
.filename
, sizeof(event
->mmap
.filename
),
402 "%s%s", mmap_name
, symbol_name
) + 1;
403 size
= ALIGN(size
, sizeof(u64
));
404 event
->mmap
.header
.type
= PERF_RECORD_MMAP
;
405 event
->mmap
.header
.size
= (sizeof(event
->mmap
) -
406 (sizeof(event
->mmap
.filename
) - size
) + session
->id_hdr_size
);
407 event
->mmap
.pgoff
= args
.start
;
408 event
->mmap
.start
= map
->start
;
409 event
->mmap
.len
= map
->end
- event
->mmap
.start
;
410 event
->mmap
.pid
= machine
->pid
;
412 err
= process(event
, &synth_sample
, session
);
418 static void thread__comm_adjust(struct thread
*self
, struct hists
*hists
)
420 char *comm
= self
->comm
;
422 if (!symbol_conf
.col_width_list_str
&& !symbol_conf
.field_sep
&&
423 (!symbol_conf
.comm_list
||
424 strlist__has_entry(symbol_conf
.comm_list
, comm
))) {
425 u16 slen
= strlen(comm
);
427 if (hists__new_col_len(hists
, HISTC_COMM
, slen
))
428 hists__set_col_len(hists
, HISTC_THREAD
, slen
+ 6);
432 static int thread__set_comm_adjust(struct thread
*self
, const char *comm
,
435 int ret
= thread__set_comm(self
, comm
);
440 thread__comm_adjust(self
, hists
);
445 int perf_event__process_comm(union perf_event
*event
,
446 struct perf_sample
*sample __used
,
447 struct perf_session
*session
)
449 struct thread
*thread
= perf_session__findnew(session
, event
->comm
.tid
);
451 dump_printf(": %s:%d\n", event
->comm
.comm
, event
->comm
.tid
);
453 if (thread
== NULL
|| thread__set_comm_adjust(thread
, event
->comm
.comm
,
455 dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
462 int perf_event__process_lost(union perf_event
*event
,
463 struct perf_sample
*sample __used
,
464 struct perf_session
*session
)
466 dump_printf(": id:%" PRIu64
": lost:%" PRIu64
"\n",
467 event
->lost
.id
, event
->lost
.lost
);
468 session
->hists
.stats
.total_lost
+= event
->lost
.lost
;
472 static void perf_event__set_kernel_mmap_len(union perf_event
*event
,
475 maps
[MAP__FUNCTION
]->start
= event
->mmap
.start
;
476 maps
[MAP__FUNCTION
]->end
= event
->mmap
.start
+ event
->mmap
.len
;
478 * Be a bit paranoid here, some perf.data file came with
479 * a zero sized synthesized MMAP event for the kernel.
481 if (maps
[MAP__FUNCTION
]->end
== 0)
482 maps
[MAP__FUNCTION
]->end
= ~0ULL;
485 static int perf_event__process_kernel_mmap(union perf_event
*event
,
486 struct perf_session
*session
)
489 char kmmap_prefix
[PATH_MAX
];
490 struct machine
*machine
;
491 enum dso_kernel_type kernel_type
;
494 machine
= perf_session__findnew_machine(session
, event
->mmap
.pid
);
496 pr_err("Can't find id %d's machine\n", event
->mmap
.pid
);
500 machine__mmap_name(machine
, kmmap_prefix
, sizeof(kmmap_prefix
));
501 if (machine__is_host(machine
))
502 kernel_type
= DSO_TYPE_KERNEL
;
504 kernel_type
= DSO_TYPE_GUEST_KERNEL
;
506 is_kernel_mmap
= memcmp(event
->mmap
.filename
,
508 strlen(kmmap_prefix
)) == 0;
509 if (event
->mmap
.filename
[0] == '/' ||
510 (!is_kernel_mmap
&& event
->mmap
.filename
[0] == '[')) {
512 char short_module_name
[1024];
515 if (event
->mmap
.filename
[0] == '/') {
516 name
= strrchr(event
->mmap
.filename
, '/');
521 dot
= strrchr(name
, '.');
524 snprintf(short_module_name
, sizeof(short_module_name
),
525 "[%.*s]", (int)(dot
- name
), name
);
526 strxfrchar(short_module_name
, '-', '_');
528 strcpy(short_module_name
, event
->mmap
.filename
);
530 map
= machine__new_module(machine
, event
->mmap
.start
,
531 event
->mmap
.filename
);
535 name
= strdup(short_module_name
);
539 map
->dso
->short_name
= name
;
540 map
->dso
->sname_alloc
= 1;
541 map
->end
= map
->start
+ event
->mmap
.len
;
542 } else if (is_kernel_mmap
) {
543 const char *symbol_name
= (event
->mmap
.filename
+
544 strlen(kmmap_prefix
));
546 * Should be there already, from the build-id table in
549 struct dso
*kernel
= __dsos__findnew(&machine
->kernel_dsos
,
554 kernel
->kernel
= kernel_type
;
555 if (__machine__create_kernel_maps(machine
, kernel
) < 0)
558 perf_event__set_kernel_mmap_len(event
, machine
->vmlinux_maps
);
559 perf_session__set_kallsyms_ref_reloc_sym(machine
->vmlinux_maps
,
562 if (machine__is_default_guest(machine
)) {
564 * preload dso of guest kernel and modules
566 dso__load(kernel
, machine
->vmlinux_maps
[MAP__FUNCTION
],
575 int perf_event__process_mmap(union perf_event
*event
,
576 struct perf_sample
*sample __used
,
577 struct perf_session
*session
)
579 struct machine
*machine
;
580 struct thread
*thread
;
582 u8 cpumode
= event
->header
.misc
& PERF_RECORD_MISC_CPUMODE_MASK
;
585 dump_printf(" %d/%d: [%#" PRIx64
"(%#" PRIx64
") @ %#" PRIx64
"]: %s\n",
586 event
->mmap
.pid
, event
->mmap
.tid
, event
->mmap
.start
,
587 event
->mmap
.len
, event
->mmap
.pgoff
, event
->mmap
.filename
);
589 if (cpumode
== PERF_RECORD_MISC_GUEST_KERNEL
||
590 cpumode
== PERF_RECORD_MISC_KERNEL
) {
591 ret
= perf_event__process_kernel_mmap(event
, session
);
597 machine
= perf_session__find_host_machine(session
);
600 thread
= perf_session__findnew(session
, event
->mmap
.pid
);
603 map
= map__new(&machine
->user_dsos
, event
->mmap
.start
,
604 event
->mmap
.len
, event
->mmap
.pgoff
,
605 event
->mmap
.pid
, event
->mmap
.filename
,
610 thread__insert_map(thread
, map
);
614 dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
618 int perf_event__process_task(union perf_event
*event
,
619 struct perf_sample
*sample __used
,
620 struct perf_session
*session
)
622 struct thread
*thread
= perf_session__findnew(session
, event
->fork
.tid
);
623 struct thread
*parent
= perf_session__findnew(session
, event
->fork
.ptid
);
625 dump_printf("(%d:%d):(%d:%d)\n", event
->fork
.pid
, event
->fork
.tid
,
626 event
->fork
.ppid
, event
->fork
.ptid
);
628 if (event
->header
.type
== PERF_RECORD_EXIT
) {
629 perf_session__remove_thread(session
, thread
);
633 if (thread
== NULL
|| parent
== NULL
||
634 thread__fork(thread
, parent
) < 0) {
635 dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
642 int perf_event__process(union perf_event
*event
, struct perf_sample
*sample
,
643 struct perf_session
*session
)
645 switch (event
->header
.type
) {
646 case PERF_RECORD_COMM
:
647 perf_event__process_comm(event
, sample
, session
);
649 case PERF_RECORD_MMAP
:
650 perf_event__process_mmap(event
, sample
, session
);
652 case PERF_RECORD_FORK
:
653 case PERF_RECORD_EXIT
:
654 perf_event__process_task(event
, sample
, session
);
656 case PERF_RECORD_LOST
:
657 perf_event__process_lost(event
, sample
, session
);
665 void thread__find_addr_map(struct thread
*self
,
666 struct perf_session
*session
, u8 cpumode
,
667 enum map_type type
, pid_t pid
, u64 addr
,
668 struct addr_location
*al
)
670 struct map_groups
*mg
= &self
->mg
;
671 struct machine
*machine
= NULL
;
675 al
->cpumode
= cpumode
;
676 al
->filtered
= false;
678 if (cpumode
== PERF_RECORD_MISC_KERNEL
&& perf_host
) {
680 machine
= perf_session__find_host_machine(session
);
681 if (machine
== NULL
) {
685 mg
= &machine
->kmaps
;
686 } else if (cpumode
== PERF_RECORD_MISC_USER
&& perf_host
) {
688 machine
= perf_session__find_host_machine(session
);
689 } else if (cpumode
== PERF_RECORD_MISC_GUEST_KERNEL
&& perf_guest
) {
691 machine
= perf_session__find_machine(session
, pid
);
692 if (machine
== NULL
) {
696 mg
= &machine
->kmaps
;
699 * 'u' means guest os user space.
700 * TODO: We don't support guest user space. Might support late.
702 if (cpumode
== PERF_RECORD_MISC_GUEST_USER
&& perf_guest
)
708 if ((cpumode
== PERF_RECORD_MISC_GUEST_USER
||
709 cpumode
== PERF_RECORD_MISC_GUEST_KERNEL
) &&
712 if ((cpumode
== PERF_RECORD_MISC_USER
||
713 cpumode
== PERF_RECORD_MISC_KERNEL
) &&
720 al
->map
= map_groups__find(mg
, type
, al
->addr
);
721 if (al
->map
== NULL
) {
723 * If this is outside of all known maps, and is a negative
724 * address, try to look it up in the kernel dso, as it might be
725 * a vsyscall or vdso (which executes in user-mode).
727 * XXX This is nasty, we should have a symbol list in the
728 * "[vdso]" dso, but for now lets use the old trick of looking
729 * in the whole kernel symbol list.
731 if ((long long)al
->addr
< 0 &&
732 cpumode
== PERF_RECORD_MISC_KERNEL
&&
733 machine
&& mg
!= &machine
->kmaps
) {
734 mg
= &machine
->kmaps
;
738 al
->addr
= al
->map
->map_ip(al
->map
, al
->addr
);
741 void thread__find_addr_location(struct thread
*self
,
742 struct perf_session
*session
, u8 cpumode
,
743 enum map_type type
, pid_t pid
, u64 addr
,
744 struct addr_location
*al
,
745 symbol_filter_t filter
)
747 thread__find_addr_map(self
, session
, cpumode
, type
, pid
, addr
, al
);
749 al
->sym
= map__find_symbol(al
->map
, al
->addr
, filter
);
754 static void dso__calc_col_width(struct dso
*self
, struct hists
*hists
)
756 if (!symbol_conf
.col_width_list_str
&& !symbol_conf
.field_sep
&&
757 (!symbol_conf
.dso_list
||
758 strlist__has_entry(symbol_conf
.dso_list
, self
->name
))) {
759 u16 slen
= dso__name_len(self
);
760 hists__new_col_len(hists
, HISTC_DSO
, slen
);
763 self
->slen_calculated
= 1;
766 int perf_event__preprocess_sample(const union perf_event
*event
,
767 struct perf_session
*session
,
768 struct addr_location
*al
,
769 struct perf_sample
*sample
,
770 symbol_filter_t filter
)
772 u8 cpumode
= event
->header
.misc
& PERF_RECORD_MISC_CPUMODE_MASK
;
773 struct thread
*thread
= perf_session__findnew(session
, event
->ip
.pid
);
778 if (symbol_conf
.comm_list
&&
779 !strlist__has_entry(symbol_conf
.comm_list
, thread
->comm
))
782 dump_printf(" ... thread: %s:%d\n", thread
->comm
, thread
->pid
);
784 * Have we already created the kernel maps for the host machine?
786 * This should have happened earlier, when we processed the kernel MMAP
787 * events, but for older perf.data files there was no such thing, so do
790 if (cpumode
== PERF_RECORD_MISC_KERNEL
&&
791 session
->host_machine
.vmlinux_maps
[MAP__FUNCTION
] == NULL
)
792 machine__create_kernel_maps(&session
->host_machine
);
794 thread__find_addr_map(thread
, session
, cpumode
, MAP__FUNCTION
,
795 event
->ip
.pid
, event
->ip
.ip
, al
);
796 dump_printf(" ...... dso: %s\n",
797 al
->map
? al
->map
->dso
->long_name
:
798 al
->level
== 'H' ? "[hypervisor]" : "<not found>");
800 al
->cpu
= sample
->cpu
;
803 if (symbol_conf
.dso_list
&&
804 (!al
->map
|| !al
->map
->dso
||
805 !(strlist__has_entry(symbol_conf
.dso_list
,
806 al
->map
->dso
->short_name
) ||
807 (al
->map
->dso
->short_name
!= al
->map
->dso
->long_name
&&
808 strlist__has_entry(symbol_conf
.dso_list
,
809 al
->map
->dso
->long_name
)))))
812 * We have to do this here as we may have a dso with no symbol
813 * hit that has a name longer than the ones with symbols
816 if (!sort_dso
.elide
&& !al
->map
->dso
->slen_calculated
)
817 dso__calc_col_width(al
->map
->dso
, &session
->hists
);
819 al
->sym
= map__find_symbol(al
->map
, al
->addr
, filter
);
821 const unsigned int unresolved_col_width
= BITS_PER_LONG
/ 4;
823 if (hists__col_len(&session
->hists
, HISTC_DSO
) < unresolved_col_width
&&
824 !symbol_conf
.col_width_list_str
&& !symbol_conf
.field_sep
&&
825 !symbol_conf
.dso_list
)
826 hists__set_col_len(&session
->hists
, HISTC_DSO
,
827 unresolved_col_width
);
830 if (symbol_conf
.sym_list
&& al
->sym
&&
831 !strlist__has_entry(symbol_conf
.sym_list
, al
->sym
->name
))