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-rw-r--r--tools/perf/Documentation/perf-annotate.txt6
-rw-r--r--tools/perf/Documentation/perf-probe.txt6
-rw-r--r--tools/perf/Documentation/perf-report.txt21
-rw-r--r--tools/perf/Documentation/perf-script.txt18
-rw-r--r--tools/perf/Makefile2
-rw-r--r--tools/perf/builtin-annotate.c15
-rw-r--r--tools/perf/builtin-probe.c3
-rw-r--r--tools/perf/builtin-record.c2
-rw-r--r--tools/perf/builtin-report.c57
-rw-r--r--tools/perf/builtin-script.c121
-rw-r--r--tools/perf/builtin-stat.c20
-rw-r--r--tools/perf/builtin-test.c249
-rw-r--r--tools/perf/builtin-top.c2
-rw-r--r--tools/perf/util/callchain.h6
-rw-r--r--tools/perf/util/dwarf-aux.c663
-rw-r--r--tools/perf/util/dwarf-aux.h100
-rw-r--r--tools/perf/util/evsel.c1
-rw-r--r--tools/perf/util/evsel.h1
-rw-r--r--tools/perf/util/header.c5
-rw-r--r--tools/perf/util/hist.c6
-rw-r--r--tools/perf/util/parse-events.c39
-rw-r--r--tools/perf/util/parse-events.h6
-rw-r--r--tools/perf/util/probe-event.c165
-rw-r--r--tools/perf/util/probe-event.h1
-rw-r--r--tools/perf/util/probe-finder.c752
-rw-r--r--tools/perf/util/probe-finder.h43
-rw-r--r--tools/perf/util/python.c17
-rw-r--r--tools/perf/util/session.c132
-rw-r--r--tools/perf/util/session.h9
-rw-r--r--tools/perf/util/sort.c223
-rw-r--r--tools/perf/util/sort.h14
-rw-r--r--tools/perf/util/string.c19
-rw-r--r--tools/perf/util/trace-event-info.c120
-rw-r--r--tools/perf/util/util.h1
34 files changed, 1816 insertions, 1029 deletions
diff --git a/tools/perf/Documentation/perf-annotate.txt b/tools/perf/Documentation/perf-annotate.txt
index 6f5a498608b2..85c5f026930d 100644
--- a/tools/perf/Documentation/perf-annotate.txt
+++ b/tools/perf/Documentation/perf-annotate.txt
@@ -66,6 +66,12 @@ OPTIONS
66 used. This interfaces starts by centering on the line with more 66 used. This interfaces starts by centering on the line with more
67 samples, TAB/UNTAB cycles through the lines with more samples. 67 samples, TAB/UNTAB cycles through the lines with more samples.
68 68
69-c::
70--cpu:: Only report samples for the list of CPUs provided. Multiple CPUs can
71 be provided as a comma-separated list with no space: 0,1. Ranges of
72 CPUs are specified with -: 0-2. Default is to report samples on all
73 CPUs.
74
69SEE ALSO 75SEE ALSO
70-------- 76--------
71linkperf:perf-record[1], linkperf:perf-report[1] 77linkperf:perf-record[1], linkperf:perf-report[1]
diff --git a/tools/perf/Documentation/perf-probe.txt b/tools/perf/Documentation/perf-probe.txt
index 02bafce4b341..2780d9ce48bf 100644
--- a/tools/perf/Documentation/perf-probe.txt
+++ b/tools/perf/Documentation/perf-probe.txt
@@ -34,9 +34,11 @@ OPTIONS
34 Specify vmlinux path which has debuginfo (Dwarf binary). 34 Specify vmlinux path which has debuginfo (Dwarf binary).
35 35
36-m:: 36-m::
37--module=MODNAME:: 37--module=MODNAME|PATH::
38 Specify module name in which perf-probe searches probe points 38 Specify module name in which perf-probe searches probe points
39 or lines. 39 or lines. If a path of module file is passed, perf-probe
40 treat it as an offline module (this means you can add a probe on
41 a module which has not been loaded yet).
40 42
41-s:: 43-s::
42--source=PATH:: 44--source=PATH::
diff --git a/tools/perf/Documentation/perf-report.txt b/tools/perf/Documentation/perf-report.txt
index 8ba03d6e5398..04253c07d19a 100644
--- a/tools/perf/Documentation/perf-report.txt
+++ b/tools/perf/Documentation/perf-report.txt
@@ -80,15 +80,24 @@ OPTIONS
80--dump-raw-trace:: 80--dump-raw-trace::
81 Dump raw trace in ASCII. 81 Dump raw trace in ASCII.
82 82
83-g [type,min]:: 83-g [type,min,order]::
84--call-graph:: 84--call-graph::
85 Display call chains using type and min percent threshold. 85 Display call chains using type, min percent threshold and order.
86 type can be either: 86 type can be either:
87 - flat: single column, linear exposure of call chains. 87 - flat: single column, linear exposure of call chains.
88 - graph: use a graph tree, displaying absolute overhead rates. 88 - graph: use a graph tree, displaying absolute overhead rates.
89 - fractal: like graph, but displays relative rates. Each branch of 89 - fractal: like graph, but displays relative rates. Each branch of
90 the tree is considered as a new profiled object. + 90 the tree is considered as a new profiled object. +
91 Default: fractal,0.5. 91
92 order can be either:
93 - callee: callee based call graph.
94 - caller: inverted caller based call graph.
95
96 Default: fractal,0.5,callee.
97
98-G::
99--inverted::
100 alias for inverted caller based call graph.
92 101
93--pretty=<key>:: 102--pretty=<key>::
94 Pretty printing style. key: normal, raw 103 Pretty printing style. key: normal, raw
@@ -119,6 +128,12 @@ OPTIONS
119--symfs=<directory>:: 128--symfs=<directory>::
120 Look for files with symbols relative to this directory. 129 Look for files with symbols relative to this directory.
121 130
131-c::
132--cpu:: Only report samples for the list of CPUs provided. Multiple CPUs can
133 be provided as a comma-separated list with no space: 0,1. Ranges of
134 CPUs are specified with -: 0-2. Default is to report samples on all
135 CPUs.
136
122SEE ALSO 137SEE ALSO
123-------- 138--------
124linkperf:perf-stat[1] 139linkperf:perf-stat[1]
diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt
index 86c87e214b11..db017867d9e8 100644
--- a/tools/perf/Documentation/perf-script.txt
+++ b/tools/perf/Documentation/perf-script.txt
@@ -115,10 +115,10 @@ OPTIONS
115-f:: 115-f::
116--fields:: 116--fields::
117 Comma separated list of fields to print. Options are: 117 Comma separated list of fields to print. Options are:
118 comm, tid, pid, time, cpu, event, trace, sym. Field 118 comm, tid, pid, time, cpu, event, trace, ip, sym, dso, addr.
119 list can be prepended with the type, trace, sw or hw, 119 Field list can be prepended with the type, trace, sw or hw,
120 to indicate to which event type the field list applies. 120 to indicate to which event type the field list applies.
121 e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace 121 e.g., -f sw:comm,tid,time,ip,sym and -f trace:time,cpu,trace
122 122
123 perf script -f <fields> 123 perf script -f <fields>
124 124
@@ -132,17 +132,17 @@ OPTIONS
132 The arguments are processed in the order received. A later usage can 132 The arguments are processed in the order received. A later usage can
133 reset a prior request. e.g.: 133 reset a prior request. e.g.:
134 134
135 -f trace: -f comm,tid,time,sym 135 -f trace: -f comm,tid,time,ip,sym
136 136
137 The first -f suppresses trace events (field list is ""), but then the 137 The first -f suppresses trace events (field list is ""), but then the
138 second invocation sets the fields to comm,tid,time,sym. In this case a 138 second invocation sets the fields to comm,tid,time,ip,sym. In this case a
139 warning is given to the user: 139 warning is given to the user:
140 140
141 "Overriding previous field request for all events." 141 "Overriding previous field request for all events."
142 142
143 Alternativey, consider the order: 143 Alternativey, consider the order:
144 144
145 -f comm,tid,time,sym -f trace: 145 -f comm,tid,time,ip,sym -f trace:
146 146
147 The first -f sets the fields for all events and the second -f 147 The first -f sets the fields for all events and the second -f
148 suppresses trace events. The user is given a warning message about 148 suppresses trace events. The user is given a warning message about
@@ -182,6 +182,12 @@ OPTIONS
182--hide-call-graph:: 182--hide-call-graph::
183 When printing symbols do not display call chain. 183 When printing symbols do not display call chain.
184 184
185-c::
186--cpu:: Only report samples for the list of CPUs provided. Multiple CPUs can
187 be provided as a comma-separated list with no space: 0,1. Ranges of
188 CPUs are specified with -: 0-2. Default is to report samples on all
189 CPUs.
190
185SEE ALSO 191SEE ALSO
186-------- 192--------
187linkperf:perf-record[1], linkperf:perf-script-perl[1], 193linkperf:perf-record[1], linkperf:perf-script-perl[1],
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 940257b5774e..d0861bbd1d94 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -279,6 +279,7 @@ LIB_H += util/thread.h
279LIB_H += util/thread_map.h 279LIB_H += util/thread_map.h
280LIB_H += util/trace-event.h 280LIB_H += util/trace-event.h
281LIB_H += util/probe-finder.h 281LIB_H += util/probe-finder.h
282LIB_H += util/dwarf-aux.h
282LIB_H += util/probe-event.h 283LIB_H += util/probe-event.h
283LIB_H += util/pstack.h 284LIB_H += util/pstack.h
284LIB_H += util/cpumap.h 285LIB_H += util/cpumap.h
@@ -435,6 +436,7 @@ else
435 BASIC_CFLAGS += -DDWARF_SUPPORT 436 BASIC_CFLAGS += -DDWARF_SUPPORT
436 EXTLIBS += -lelf -ldw 437 EXTLIBS += -lelf -ldw
437 LIB_OBJS += $(OUTPUT)util/probe-finder.o 438 LIB_OBJS += $(OUTPUT)util/probe-finder.o
439 LIB_OBJS += $(OUTPUT)util/dwarf-aux.o
438endif # PERF_HAVE_DWARF_REGS 440endif # PERF_HAVE_DWARF_REGS
439endif # NO_DWARF 441endif # NO_DWARF
440 442
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 7b139e1e7e86..555aefd7fe01 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -28,6 +28,8 @@
28#include "util/hist.h" 28#include "util/hist.h"
29#include "util/session.h" 29#include "util/session.h"
30 30
31#include <linux/bitmap.h>
32
31static char const *input_name = "perf.data"; 33static char const *input_name = "perf.data";
32 34
33static bool force, use_tui, use_stdio; 35static bool force, use_tui, use_stdio;
@@ -38,6 +40,9 @@ static bool print_line;
38 40
39static const char *sym_hist_filter; 41static const char *sym_hist_filter;
40 42
43static const char *cpu_list;
44static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
45
41static int perf_evlist__add_sample(struct perf_evlist *evlist, 46static int perf_evlist__add_sample(struct perf_evlist *evlist,
42 struct perf_sample *sample, 47 struct perf_sample *sample,
43 struct perf_evsel *evsel, 48 struct perf_evsel *evsel,
@@ -90,6 +95,9 @@ static int process_sample_event(union perf_event *event,
90 return -1; 95 return -1;
91 } 96 }
92 97
98 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
99 return 0;
100
93 if (!al.filtered && 101 if (!al.filtered &&
94 perf_evlist__add_sample(session->evlist, sample, evsel, &al)) { 102 perf_evlist__add_sample(session->evlist, sample, evsel, &al)) {
95 pr_warning("problem incrementing symbol count, " 103 pr_warning("problem incrementing symbol count, "
@@ -177,6 +185,12 @@ static int __cmd_annotate(void)
177 if (session == NULL) 185 if (session == NULL)
178 return -ENOMEM; 186 return -ENOMEM;
179 187
188 if (cpu_list) {
189 ret = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
190 if (ret)
191 goto out_delete;
192 }
193
180 ret = perf_session__process_events(session, &event_ops); 194 ret = perf_session__process_events(session, &event_ops);
181 if (ret) 195 if (ret)
182 goto out_delete; 196 goto out_delete;
@@ -252,6 +266,7 @@ static const struct option options[] = {
252 "print matching source lines (may be slow)"), 266 "print matching source lines (may be slow)"),
253 OPT_BOOLEAN('P', "full-paths", &full_paths, 267 OPT_BOOLEAN('P', "full-paths", &full_paths,
254 "Don't shorten the displayed pathnames"), 268 "Don't shorten the displayed pathnames"),
269 OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
255 OPT_END() 270 OPT_END()
256}; 271};
257 272
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 2c0e64d0b4aa..5f2a5c7046df 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -242,7 +242,8 @@ static const struct option options[] = {
242 OPT_STRING('s', "source", &symbol_conf.source_prefix, 242 OPT_STRING('s', "source", &symbol_conf.source_prefix,
243 "directory", "path to kernel source"), 243 "directory", "path to kernel source"),
244 OPT_STRING('m', "module", &params.target_module, 244 OPT_STRING('m', "module", &params.target_module,
245 "modname", "target module name"), 245 "modname|path",
246 "target module name (for online) or path (for offline)"),
246#endif 247#endif
247 OPT__DRY_RUN(&probe_event_dry_run), 248 OPT__DRY_RUN(&probe_event_dry_run),
248 OPT_INTEGER('\0', "max-probes", &params.max_probe_points, 249 OPT_INTEGER('\0', "max-probes", &params.max_probe_points,
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 8e2c85798185..80dc5b790e47 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -740,7 +740,7 @@ static bool force, append_file;
740const struct option record_options[] = { 740const struct option record_options[] = {
741 OPT_CALLBACK('e', "event", &evsel_list, "event", 741 OPT_CALLBACK('e', "event", &evsel_list, "event",
742 "event selector. use 'perf list' to list available events", 742 "event selector. use 'perf list' to list available events",
743 parse_events), 743 parse_events_option),
744 OPT_CALLBACK(0, "filter", &evsel_list, "filter", 744 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
745 "event filter", parse_filter), 745 "event filter", parse_filter),
746 OPT_INTEGER('p', "pid", &target_pid, 746 OPT_INTEGER('p', "pid", &target_pid,
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index 287a173523a7..f854efda7686 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -33,6 +33,8 @@
33#include "util/sort.h" 33#include "util/sort.h"
34#include "util/hist.h" 34#include "util/hist.h"
35 35
36#include <linux/bitmap.h>
37
36static char const *input_name = "perf.data"; 38static char const *input_name = "perf.data";
37 39
38static bool force, use_tui, use_stdio; 40static bool force, use_tui, use_stdio;
@@ -45,9 +47,13 @@ static struct perf_read_values show_threads_values;
45static const char default_pretty_printing_style[] = "normal"; 47static const char default_pretty_printing_style[] = "normal";
46static const char *pretty_printing_style = default_pretty_printing_style; 48static const char *pretty_printing_style = default_pretty_printing_style;
47 49
48static char callchain_default_opt[] = "fractal,0.5"; 50static char callchain_default_opt[] = "fractal,0.5,callee";
51static bool inverted_callchain;
49static symbol_filter_t annotate_init; 52static symbol_filter_t annotate_init;
50 53
54static const char *cpu_list;
55static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
56
51static int perf_session__add_hist_entry(struct perf_session *session, 57static int perf_session__add_hist_entry(struct perf_session *session,
52 struct addr_location *al, 58 struct addr_location *al,
53 struct perf_sample *sample, 59 struct perf_sample *sample,
@@ -116,6 +122,9 @@ static int process_sample_event(union perf_event *event,
116 if (al.filtered || (hide_unresolved && al.sym == NULL)) 122 if (al.filtered || (hide_unresolved && al.sym == NULL))
117 return 0; 123 return 0;
118 124
125 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
126 return 0;
127
119 if (al.map != NULL) 128 if (al.map != NULL)
120 al.map->dso->hit = 1; 129 al.map->dso->hit = 1;
121 130
@@ -262,6 +271,12 @@ static int __cmd_report(void)
262 if (session == NULL) 271 if (session == NULL)
263 return -ENOMEM; 272 return -ENOMEM;
264 273
274 if (cpu_list) {
275 ret = perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap);
276 if (ret)
277 goto out_delete;
278 }
279
265 if (show_threads) 280 if (show_threads)
266 perf_read_values_init(&show_threads_values); 281 perf_read_values_init(&show_threads_values);
267 282
@@ -386,13 +401,29 @@ parse_callchain_opt(const struct option *opt __used, const char *arg,
386 if (!tok) 401 if (!tok)
387 goto setup; 402 goto setup;
388 403
389 tok2 = strtok(NULL, ",");
390 callchain_param.min_percent = strtod(tok, &endptr); 404 callchain_param.min_percent = strtod(tok, &endptr);
391 if (tok == endptr) 405 if (tok == endptr)
392 return -1; 406 return -1;
393 407
394 if (tok2) 408 /* get the print limit */
409 tok2 = strtok(NULL, ",");
410 if (!tok2)
411 goto setup;
412
413 if (tok2[0] != 'c') {
395 callchain_param.print_limit = strtod(tok2, &endptr); 414 callchain_param.print_limit = strtod(tok2, &endptr);
415 tok2 = strtok(NULL, ",");
416 if (!tok2)
417 goto setup;
418 }
419
420 /* get the call chain order */
421 if (!strcmp(tok2, "caller"))
422 callchain_param.order = ORDER_CALLER;
423 else if (!strcmp(tok2, "callee"))
424 callchain_param.order = ORDER_CALLEE;
425 else
426 return -1;
396setup: 427setup:
397 if (callchain_register_param(&callchain_param) < 0) { 428 if (callchain_register_param(&callchain_param) < 0) {
398 fprintf(stderr, "Can't register callchain params\n"); 429 fprintf(stderr, "Can't register callchain params\n");
@@ -436,9 +467,10 @@ static const struct option options[] = {
436 "regex filter to identify parent, see: '--sort parent'"), 467 "regex filter to identify parent, see: '--sort parent'"),
437 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other, 468 OPT_BOOLEAN('x', "exclude-other", &symbol_conf.exclude_other,
438 "Only display entries with parent-match"), 469 "Only display entries with parent-match"),
439 OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent", 470 OPT_CALLBACK_DEFAULT('g', "call-graph", NULL, "output_type,min_percent, call_order",
440 "Display callchains using output_type (graph, flat, fractal, or none) and min percent threshold. " 471 "Display callchains using output_type (graph, flat, fractal, or none) , min percent threshold and callchain order. "
441 "Default: fractal,0.5", &parse_callchain_opt, callchain_default_opt), 472 "Default: fractal,0.5,callee", &parse_callchain_opt, callchain_default_opt),
473 OPT_BOOLEAN('G', "inverted", &inverted_callchain, "alias for inverted call graph"),
442 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]", 474 OPT_STRING('d', "dsos", &symbol_conf.dso_list_str, "dso[,dso...]",
443 "only consider symbols in these dsos"), 475 "only consider symbols in these dsos"),
444 OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]", 476 OPT_STRING('C', "comms", &symbol_conf.comm_list_str, "comm[,comm...]",
@@ -455,6 +487,7 @@ static const struct option options[] = {
455 "Only display entries resolved to a symbol"), 487 "Only display entries resolved to a symbol"),
456 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 488 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
457 "Look for files with symbols relative to this directory"), 489 "Look for files with symbols relative to this directory"),
490 OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
458 OPT_END() 491 OPT_END()
459}; 492};
460 493
@@ -467,6 +500,9 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
467 else if (use_tui) 500 else if (use_tui)
468 use_browser = 1; 501 use_browser = 1;
469 502
503 if (inverted_callchain)
504 callchain_param.order = ORDER_CALLER;
505
470 if (strcmp(input_name, "-") != 0) 506 if (strcmp(input_name, "-") != 0)
471 setup_browser(true); 507 setup_browser(true);
472 else 508 else
@@ -504,7 +540,14 @@ int cmd_report(int argc, const char **argv, const char *prefix __used)
504 if (parent_pattern != default_parent_pattern) { 540 if (parent_pattern != default_parent_pattern) {
505 if (sort_dimension__add("parent") < 0) 541 if (sort_dimension__add("parent") < 0)
506 return -1; 542 return -1;
507 sort_parent.elide = 1; 543
544 /*
545 * Only show the parent fields if we explicitly
546 * sort that way. If we only use parent machinery
547 * for filtering, we don't want it.
548 */
549 if (!strstr(sort_order, "parent"))
550 sort_parent.elide = 1;
508 } else 551 } else
509 symbol_conf.exclude_other = false; 552 symbol_conf.exclude_other = false;
510 553
diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c
index 22747de7234b..09024ec2ab2e 100644
--- a/tools/perf/builtin-script.c
+++ b/tools/perf/builtin-script.c
@@ -13,6 +13,7 @@
13#include "util/util.h" 13#include "util/util.h"
14#include "util/evlist.h" 14#include "util/evlist.h"
15#include "util/evsel.h" 15#include "util/evsel.h"
16#include <linux/bitmap.h>
16 17
17static char const *script_name; 18static char const *script_name;
18static char const *generate_script_lang; 19static char const *generate_script_lang;
@@ -21,6 +22,8 @@ static u64 last_timestamp;
21static u64 nr_unordered; 22static u64 nr_unordered;
22extern const struct option record_options[]; 23extern const struct option record_options[];
23static bool no_callchain; 24static bool no_callchain;
25static const char *cpu_list;
26static DECLARE_BITMAP(cpu_bitmap, MAX_NR_CPUS);
24 27
25enum perf_output_field { 28enum perf_output_field {
26 PERF_OUTPUT_COMM = 1U << 0, 29 PERF_OUTPUT_COMM = 1U << 0,
@@ -30,7 +33,10 @@ enum perf_output_field {
30 PERF_OUTPUT_CPU = 1U << 4, 33 PERF_OUTPUT_CPU = 1U << 4,
31 PERF_OUTPUT_EVNAME = 1U << 5, 34 PERF_OUTPUT_EVNAME = 1U << 5,
32 PERF_OUTPUT_TRACE = 1U << 6, 35 PERF_OUTPUT_TRACE = 1U << 6,
33 PERF_OUTPUT_SYM = 1U << 7, 36 PERF_OUTPUT_IP = 1U << 7,
37 PERF_OUTPUT_SYM = 1U << 8,
38 PERF_OUTPUT_DSO = 1U << 9,
39 PERF_OUTPUT_ADDR = 1U << 10,
34}; 40};
35 41
36struct output_option { 42struct output_option {
@@ -44,7 +50,10 @@ struct output_option {
44 {.str = "cpu", .field = PERF_OUTPUT_CPU}, 50 {.str = "cpu", .field = PERF_OUTPUT_CPU},
45 {.str = "event", .field = PERF_OUTPUT_EVNAME}, 51 {.str = "event", .field = PERF_OUTPUT_EVNAME},
46 {.str = "trace", .field = PERF_OUTPUT_TRACE}, 52 {.str = "trace", .field = PERF_OUTPUT_TRACE},
53 {.str = "ip", .field = PERF_OUTPUT_IP},
47 {.str = "sym", .field = PERF_OUTPUT_SYM}, 54 {.str = "sym", .field = PERF_OUTPUT_SYM},
55 {.str = "dso", .field = PERF_OUTPUT_DSO},
56 {.str = "addr", .field = PERF_OUTPUT_ADDR},
48}; 57};
49 58
50/* default set to maintain compatibility with current format */ 59/* default set to maintain compatibility with current format */
@@ -60,7 +69,8 @@ static struct {
60 69
61 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 70 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
62 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 71 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
63 PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, 72 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
73 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
64 74
65 .invalid_fields = PERF_OUTPUT_TRACE, 75 .invalid_fields = PERF_OUTPUT_TRACE,
66 }, 76 },
@@ -70,7 +80,8 @@ static struct {
70 80
71 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 81 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
72 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 82 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
73 PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, 83 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
84 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
74 85
75 .invalid_fields = PERF_OUTPUT_TRACE, 86 .invalid_fields = PERF_OUTPUT_TRACE,
76 }, 87 },
@@ -88,7 +99,8 @@ static struct {
88 99
89 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | 100 .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID |
90 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | 101 PERF_OUTPUT_CPU | PERF_OUTPUT_TIME |
91 PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, 102 PERF_OUTPUT_EVNAME | PERF_OUTPUT_IP |
103 PERF_OUTPUT_SYM | PERF_OUTPUT_DSO,
92 104
93 .invalid_fields = PERF_OUTPUT_TRACE, 105 .invalid_fields = PERF_OUTPUT_TRACE,
94 }, 106 },
@@ -157,9 +169,9 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
157 !perf_session__has_traces(session, "record -R")) 169 !perf_session__has_traces(session, "record -R"))
158 return -EINVAL; 170 return -EINVAL;
159 171
160 if (PRINT_FIELD(SYM)) { 172 if (PRINT_FIELD(IP)) {
161 if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP", 173 if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP",
162 PERF_OUTPUT_SYM)) 174 PERF_OUTPUT_IP))
163 return -EINVAL; 175 return -EINVAL;
164 176
165 if (!no_callchain && 177 if (!no_callchain &&
@@ -167,6 +179,24 @@ static int perf_evsel__check_attr(struct perf_evsel *evsel,
167 symbol_conf.use_callchain = false; 179 symbol_conf.use_callchain = false;
168 } 180 }
169 181
182 if (PRINT_FIELD(ADDR) &&
183 perf_event_attr__check_stype(attr, PERF_SAMPLE_ADDR, "ADDR",
184 PERF_OUTPUT_ADDR))
185 return -EINVAL;
186
187 if (PRINT_FIELD(SYM) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
188 pr_err("Display of symbols requested but neither sample IP nor "
189 "sample address\nis selected. Hence, no addresses to convert "
190 "to symbols.\n");
191 return -EINVAL;
192 }
193 if (PRINT_FIELD(DSO) && !PRINT_FIELD(IP) && !PRINT_FIELD(ADDR)) {
194 pr_err("Display of DSO requested but neither sample IP nor "
195 "sample address\nis selected. Hence, no addresses to convert "
196 "to DSO.\n");
197 return -EINVAL;
198 }
199
170 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && 200 if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) &&
171 perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID", 201 perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID",
172 PERF_OUTPUT_TID|PERF_OUTPUT_PID)) 202 PERF_OUTPUT_TID|PERF_OUTPUT_PID))
@@ -230,7 +260,7 @@ static void print_sample_start(struct perf_sample *sample,
230 if (PRINT_FIELD(COMM)) { 260 if (PRINT_FIELD(COMM)) {
231 if (latency_format) 261 if (latency_format)
232 printf("%8.8s ", thread->comm); 262 printf("%8.8s ", thread->comm);
233 else if (PRINT_FIELD(SYM) && symbol_conf.use_callchain) 263 else if (PRINT_FIELD(IP) && symbol_conf.use_callchain)
234 printf("%s ", thread->comm); 264 printf("%s ", thread->comm);
235 else 265 else
236 printf("%16s ", thread->comm); 266 printf("%16s ", thread->comm);
@@ -271,6 +301,63 @@ static void print_sample_start(struct perf_sample *sample,
271 } 301 }
272} 302}
273 303
304static bool sample_addr_correlates_sym(struct perf_event_attr *attr)
305{
306 if ((attr->type == PERF_TYPE_SOFTWARE) &&
307 ((attr->config == PERF_COUNT_SW_PAGE_FAULTS) ||
308 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MIN) ||
309 (attr->config == PERF_COUNT_SW_PAGE_FAULTS_MAJ)))
310 return true;
311
312 return false;
313}
314
315static void print_sample_addr(union perf_event *event,
316 struct perf_sample *sample,
317 struct perf_session *session,
318 struct thread *thread,
319 struct perf_event_attr *attr)
320{
321 struct addr_location al;
322 u8 cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
323 const char *symname, *dsoname;
324
325 printf("%16" PRIx64, sample->addr);
326
327 if (!sample_addr_correlates_sym(attr))
328 return;
329
330 thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
331 event->ip.pid, sample->addr, &al);
332 if (!al.map)
333 thread__find_addr_map(thread, session, cpumode, MAP__VARIABLE,
334 event->ip.pid, sample->addr, &al);
335
336 al.cpu = sample->cpu;
337 al.sym = NULL;
338
339 if (al.map)
340 al.sym = map__find_symbol(al.map, al.addr, NULL);
341
342 if (PRINT_FIELD(SYM)) {
343 if (al.sym && al.sym->name)
344 symname = al.sym->name;
345 else
346 symname = "";
347
348 printf(" %16s", symname);
349 }
350
351 if (PRINT_FIELD(DSO)) {
352 if (al.map && al.map->dso && al.map->dso->name)
353 dsoname = al.map->dso->name;
354 else
355 dsoname = "";
356
357 printf(" (%s)", dsoname);
358 }
359}
360
274static void process_event(union perf_event *event __unused, 361static void process_event(union perf_event *event __unused,
275 struct perf_sample *sample, 362 struct perf_sample *sample,
276 struct perf_evsel *evsel, 363 struct perf_evsel *evsel,
@@ -288,12 +375,16 @@ static void process_event(union perf_event *event __unused,
288 print_trace_event(sample->cpu, sample->raw_data, 375 print_trace_event(sample->cpu, sample->raw_data,
289 sample->raw_size); 376 sample->raw_size);
290 377
291 if (PRINT_FIELD(SYM)) { 378 if (PRINT_FIELD(ADDR))
379 print_sample_addr(event, sample, session, thread, attr);
380
381 if (PRINT_FIELD(IP)) {
292 if (!symbol_conf.use_callchain) 382 if (!symbol_conf.use_callchain)
293 printf(" "); 383 printf(" ");
294 else 384 else
295 printf("\n"); 385 printf("\n");
296 perf_session__print_symbols(event, sample, session); 386 perf_session__print_ip(event, sample, session,
387 PRINT_FIELD(SYM), PRINT_FIELD(DSO));
297 } 388 }
298 389
299 printf("\n"); 390 printf("\n");
@@ -365,6 +456,10 @@ static int process_sample_event(union perf_event *event,
365 last_timestamp = sample->time; 456 last_timestamp = sample->time;
366 return 0; 457 return 0;
367 } 458 }
459
460 if (cpu_list && !test_bit(sample->cpu, cpu_bitmap))
461 return 0;
462
368 scripting_ops->process_event(event, sample, evsel, session, thread); 463 scripting_ops->process_event(event, sample, evsel, session, thread);
369 464
370 session->hists.stats.total_period += sample->period; 465 session->hists.stats.total_period += sample->period;
@@ -985,8 +1080,9 @@ static const struct option options[] = {
985 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", 1080 OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory",
986 "Look for files with symbols relative to this directory"), 1081 "Look for files with symbols relative to this directory"),
987 OPT_CALLBACK('f', "fields", NULL, "str", 1082 OPT_CALLBACK('f', "fields", NULL, "str",
988 "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,sym", 1083 "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,ip,sym,dso,addr",
989 parse_output_fields), 1084 parse_output_fields),
1085 OPT_STRING('c', "cpu", &cpu_list, "cpu", "list of cpus to profile"),
990 1086
991 OPT_END() 1087 OPT_END()
992}; 1088};
@@ -1167,6 +1263,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __used)
1167 if (session == NULL) 1263 if (session == NULL)
1168 return -ENOMEM; 1264 return -ENOMEM;
1169 1265
1266 if (cpu_list) {
1267 if (perf_session__cpu_bitmap(session, cpu_list, cpu_bitmap))
1268 return -1;
1269 }
1270
1170 if (!no_callchain) 1271 if (!no_callchain)
1171 symbol_conf.use_callchain = true; 1272 symbol_conf.use_callchain = true;
1172 else 1273 else
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index a9f06715e44d..1ad04ce29c34 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -61,6 +61,8 @@
61#include <locale.h> 61#include <locale.h>
62 62
63#define DEFAULT_SEPARATOR " " 63#define DEFAULT_SEPARATOR " "
64#define CNTR_NOT_SUPPORTED "<not supported>"
65#define CNTR_NOT_COUNTED "<not counted>"
64 66
65static struct perf_event_attr default_attrs[] = { 67static struct perf_event_attr default_attrs[] = {
66 68
@@ -448,6 +450,7 @@ static int run_perf_stat(int argc __used, const char **argv)
448 if (verbose) 450 if (verbose)
449 ui__warning("%s event is not supported by the kernel.\n", 451 ui__warning("%s event is not supported by the kernel.\n",
450 event_name(counter)); 452 event_name(counter));
453 counter->supported = false;
451 continue; 454 continue;
452 } 455 }
453 456
@@ -466,6 +469,7 @@ static int run_perf_stat(int argc __used, const char **argv)
466 die("Not all events could be opened.\n"); 469 die("Not all events could be opened.\n");
467 return -1; 470 return -1;
468 } 471 }
472 counter->supported = true;
469 } 473 }
470 474
471 if (perf_evlist__set_filters(evsel_list)) { 475 if (perf_evlist__set_filters(evsel_list)) {
@@ -513,7 +517,10 @@ static void print_noise_pct(double total, double avg)
513 if (avg) 517 if (avg)
514 pct = 100.0*total/avg; 518 pct = 100.0*total/avg;
515 519
516 fprintf(stderr, " ( +-%6.2f%% )", pct); 520 if (csv_output)
521 fprintf(stderr, "%s%.2f%%", csv_sep, pct);
522 else
523 fprintf(stderr, " ( +-%6.2f%% )", pct);
517} 524}
518 525
519static void print_noise(struct perf_evsel *evsel, double avg) 526static void print_noise(struct perf_evsel *evsel, double avg)
@@ -861,7 +868,7 @@ static void print_counter_aggr(struct perf_evsel *counter)
861 if (scaled == -1) { 868 if (scaled == -1) {
862 fprintf(stderr, "%*s%s%*s", 869 fprintf(stderr, "%*s%s%*s",
863 csv_output ? 0 : 18, 870 csv_output ? 0 : 18,
864 "<not counted>", 871 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
865 csv_sep, 872 csv_sep,
866 csv_output ? 0 : -24, 873 csv_output ? 0 : -24,
867 event_name(counter)); 874 event_name(counter));
@@ -878,13 +885,13 @@ static void print_counter_aggr(struct perf_evsel *counter)
878 else 885 else
879 abs_printout(-1, counter, avg); 886 abs_printout(-1, counter, avg);
880 887
888 print_noise(counter, avg);
889
881 if (csv_output) { 890 if (csv_output) {
882 fputc('\n', stderr); 891 fputc('\n', stderr);
883 return; 892 return;
884 } 893 }
885 894
886 print_noise(counter, avg);
887
888 if (scaled) { 895 if (scaled) {
889 double avg_enabled, avg_running; 896 double avg_enabled, avg_running;
890 897
@@ -914,7 +921,8 @@ static void print_counter(struct perf_evsel *counter)
914 csv_output ? 0 : -4, 921 csv_output ? 0 : -4,
915 evsel_list->cpus->map[cpu], csv_sep, 922 evsel_list->cpus->map[cpu], csv_sep,
916 csv_output ? 0 : 18, 923 csv_output ? 0 : 18,
917 "<not counted>", csv_sep, 924 counter->supported ? CNTR_NOT_COUNTED : CNTR_NOT_SUPPORTED,
925 csv_sep,
918 csv_output ? 0 : -24, 926 csv_output ? 0 : -24,
919 event_name(counter)); 927 event_name(counter));
920 928
@@ -1024,7 +1032,7 @@ static int stat__set_big_num(const struct option *opt __used,
1024static const struct option options[] = { 1032static const struct option options[] = {
1025 OPT_CALLBACK('e', "event", &evsel_list, "event", 1033 OPT_CALLBACK('e', "event", &evsel_list, "event",
1026 "event selector. use 'perf list' to list available events", 1034 "event selector. use 'perf list' to list available events",
1027 parse_events), 1035 parse_events_option),
1028 OPT_CALLBACK(0, "filter", &evsel_list, "filter", 1036 OPT_CALLBACK(0, "filter", &evsel_list, "filter",
1029 "event filter", parse_filter), 1037 "event filter", parse_filter),
1030 OPT_BOOLEAN('i', "no-inherit", &no_inherit, 1038 OPT_BOOLEAN('i', "no-inherit", &no_inherit,
diff --git a/tools/perf/builtin-test.c b/tools/perf/builtin-test.c
index 2da9162262b0..55f4c76f2821 100644
--- a/tools/perf/builtin-test.c
+++ b/tools/perf/builtin-test.c
@@ -12,6 +12,7 @@
12#include "util/parse-events.h" 12#include "util/parse-events.h"
13#include "util/symbol.h" 13#include "util/symbol.h"
14#include "util/thread_map.h" 14#include "util/thread_map.h"
15#include "../../include/linux/hw_breakpoint.h"
15 16
16static long page_size; 17static long page_size;
17 18
@@ -245,8 +246,8 @@ static int trace_event__id(const char *evname)
245 int err = -1, fd; 246 int err = -1, fd;
246 247
247 if (asprintf(&filename, 248 if (asprintf(&filename,
248 "/sys/kernel/debug/tracing/events/syscalls/%s/id", 249 "%s/syscalls/%s/id",
249 evname) < 0) 250 debugfs_path, evname) < 0)
250 return -1; 251 return -1;
251 252
252 fd = open(filename, O_RDONLY); 253 fd = open(filename, O_RDONLY);
@@ -600,6 +601,246 @@ out_free_threads:
600#undef nsyscalls 601#undef nsyscalls
601} 602}
602 603
604#define TEST_ASSERT_VAL(text, cond) \
605do { \
606 if (!cond) { \
607 pr_debug("FAILED %s:%d %s\n", __FILE__, __LINE__, text); \
608 return -1; \
609 } \
610} while (0)
611
612static int test__checkevent_tracepoint(struct perf_evlist *evlist)
613{
614 struct perf_evsel *evsel = list_entry(evlist->entries.next,
615 struct perf_evsel, node);
616
617 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
618 TEST_ASSERT_VAL("wrong type", PERF_TYPE_TRACEPOINT == evsel->attr.type);
619 TEST_ASSERT_VAL("wrong sample_type",
620 (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | PERF_SAMPLE_CPU) ==
621 evsel->attr.sample_type);
622 TEST_ASSERT_VAL("wrong sample_period", 1 == evsel->attr.sample_period);
623 return 0;
624}
625
626static int test__checkevent_tracepoint_multi(struct perf_evlist *evlist)
627{
628 struct perf_evsel *evsel;
629
630 TEST_ASSERT_VAL("wrong number of entries", evlist->nr_entries > 1);
631
632 list_for_each_entry(evsel, &evlist->entries, node) {
633 TEST_ASSERT_VAL("wrong type",
634 PERF_TYPE_TRACEPOINT == evsel->attr.type);
635 TEST_ASSERT_VAL("wrong sample_type",
636 (PERF_SAMPLE_RAW | PERF_SAMPLE_TIME | PERF_SAMPLE_CPU)
637 == evsel->attr.sample_type);
638 TEST_ASSERT_VAL("wrong sample_period",
639 1 == evsel->attr.sample_period);
640 }
641 return 0;
642}
643
644static int test__checkevent_raw(struct perf_evlist *evlist)
645{
646 struct perf_evsel *evsel = list_entry(evlist->entries.next,
647 struct perf_evsel, node);
648
649 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
650 TEST_ASSERT_VAL("wrong type", PERF_TYPE_RAW == evsel->attr.type);
651 TEST_ASSERT_VAL("wrong config", 1 == evsel->attr.config);
652 return 0;
653}
654
655static int test__checkevent_numeric(struct perf_evlist *evlist)
656{
657 struct perf_evsel *evsel = list_entry(evlist->entries.next,
658 struct perf_evsel, node);
659
660 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
661 TEST_ASSERT_VAL("wrong type", 1 == evsel->attr.type);
662 TEST_ASSERT_VAL("wrong config", 1 == evsel->attr.config);
663 return 0;
664}
665
666static int test__checkevent_symbolic_name(struct perf_evlist *evlist)
667{
668 struct perf_evsel *evsel = list_entry(evlist->entries.next,
669 struct perf_evsel, node);
670
671 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
672 TEST_ASSERT_VAL("wrong type", PERF_TYPE_HARDWARE == evsel->attr.type);
673 TEST_ASSERT_VAL("wrong config",
674 PERF_COUNT_HW_INSTRUCTIONS == evsel->attr.config);
675 return 0;
676}
677
678static int test__checkevent_symbolic_alias(struct perf_evlist *evlist)
679{
680 struct perf_evsel *evsel = list_entry(evlist->entries.next,
681 struct perf_evsel, node);
682
683 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
684 TEST_ASSERT_VAL("wrong type", PERF_TYPE_SOFTWARE == evsel->attr.type);
685 TEST_ASSERT_VAL("wrong config",
686 PERF_COUNT_SW_PAGE_FAULTS == evsel->attr.config);
687 return 0;
688}
689
690static int test__checkevent_genhw(struct perf_evlist *evlist)
691{
692 struct perf_evsel *evsel = list_entry(evlist->entries.next,
693 struct perf_evsel, node);
694
695 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
696 TEST_ASSERT_VAL("wrong type", PERF_TYPE_HW_CACHE == evsel->attr.type);
697 TEST_ASSERT_VAL("wrong config", (1 << 16) == evsel->attr.config);
698 return 0;
699}
700
701static int test__checkevent_breakpoint(struct perf_evlist *evlist)
702{
703 struct perf_evsel *evsel = list_entry(evlist->entries.next,
704 struct perf_evsel, node);
705
706 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
707 TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->attr.type);
708 TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
709 TEST_ASSERT_VAL("wrong bp_type", (HW_BREAKPOINT_R | HW_BREAKPOINT_W) ==
710 evsel->attr.bp_type);
711 TEST_ASSERT_VAL("wrong bp_len", HW_BREAKPOINT_LEN_4 ==
712 evsel->attr.bp_len);
713 return 0;
714}
715
716static int test__checkevent_breakpoint_x(struct perf_evlist *evlist)
717{
718 struct perf_evsel *evsel = list_entry(evlist->entries.next,
719 struct perf_evsel, node);
720
721 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
722 TEST_ASSERT_VAL("wrong type", PERF_TYPE_BREAKPOINT == evsel->attr.type);
723 TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
724 TEST_ASSERT_VAL("wrong bp_type",
725 HW_BREAKPOINT_X == evsel->attr.bp_type);
726 TEST_ASSERT_VAL("wrong bp_len", sizeof(long) == evsel->attr.bp_len);
727 return 0;
728}
729
730static int test__checkevent_breakpoint_r(struct perf_evlist *evlist)
731{
732 struct perf_evsel *evsel = list_entry(evlist->entries.next,
733 struct perf_evsel, node);
734
735 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
736 TEST_ASSERT_VAL("wrong type",
737 PERF_TYPE_BREAKPOINT == evsel->attr.type);
738 TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
739 TEST_ASSERT_VAL("wrong bp_type",
740 HW_BREAKPOINT_R == evsel->attr.bp_type);
741 TEST_ASSERT_VAL("wrong bp_len",
742 HW_BREAKPOINT_LEN_4 == evsel->attr.bp_len);
743 return 0;
744}
745
746static int test__checkevent_breakpoint_w(struct perf_evlist *evlist)
747{
748 struct perf_evsel *evsel = list_entry(evlist->entries.next,
749 struct perf_evsel, node);
750
751 TEST_ASSERT_VAL("wrong number of entries", 1 == evlist->nr_entries);
752 TEST_ASSERT_VAL("wrong type",
753 PERF_TYPE_BREAKPOINT == evsel->attr.type);
754 TEST_ASSERT_VAL("wrong config", 0 == evsel->attr.config);
755 TEST_ASSERT_VAL("wrong bp_type",
756 HW_BREAKPOINT_W == evsel->attr.bp_type);
757 TEST_ASSERT_VAL("wrong bp_len",
758 HW_BREAKPOINT_LEN_4 == evsel->attr.bp_len);
759 return 0;
760}
761
762static struct test__event_st {
763 const char *name;
764 __u32 type;
765 int (*check)(struct perf_evlist *evlist);
766} test__events[] = {
767 {
768 .name = "syscalls:sys_enter_open",
769 .check = test__checkevent_tracepoint,
770 },
771 {
772 .name = "syscalls:*",
773 .check = test__checkevent_tracepoint_multi,
774 },
775 {
776 .name = "r1",
777 .check = test__checkevent_raw,
778 },
779 {
780 .name = "1:1",
781 .check = test__checkevent_numeric,
782 },
783 {
784 .name = "instructions",
785 .check = test__checkevent_symbolic_name,
786 },
787 {
788 .name = "faults",
789 .check = test__checkevent_symbolic_alias,
790 },
791 {
792 .name = "L1-dcache-load-miss",
793 .check = test__checkevent_genhw,
794 },
795 {
796 .name = "mem:0",
797 .check = test__checkevent_breakpoint,
798 },
799 {
800 .name = "mem:0:x",
801 .check = test__checkevent_breakpoint_x,
802 },
803 {
804 .name = "mem:0:r",
805 .check = test__checkevent_breakpoint_r,
806 },
807 {
808 .name = "mem:0:w",
809 .check = test__checkevent_breakpoint_w,
810 },
811};
812
813#define TEST__EVENTS_CNT (sizeof(test__events) / sizeof(struct test__event_st))
814
815static int test__parse_events(void)
816{
817 struct perf_evlist *evlist;
818 u_int i;
819 int ret = 0;
820
821 for (i = 0; i < TEST__EVENTS_CNT; i++) {
822 struct test__event_st *e = &test__events[i];
823
824 evlist = perf_evlist__new(NULL, NULL);
825 if (evlist == NULL)
826 break;
827
828 ret = parse_events(evlist, e->name, 0);
829 if (ret) {
830 pr_debug("failed to parse event '%s', err %d\n",
831 e->name, ret);
832 break;
833 }
834
835 ret = e->check(evlist);
836 if (ret)
837 break;
838
839 perf_evlist__delete(evlist);
840 }
841
842 return ret;
843}
603static struct test { 844static struct test {
604 const char *desc; 845 const char *desc;
605 int (*func)(void); 846 int (*func)(void);
@@ -621,6 +862,10 @@ static struct test {
621 .func = test__basic_mmap, 862 .func = test__basic_mmap,
622 }, 863 },
623 { 864 {
865 .desc = "parse events tests",
866 .func = test__parse_events,
867 },
868 {
624 .func = NULL, 869 .func = NULL,
625 }, 870 },
626}; 871};
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index f2f3f4937aa2..a43433f08300 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -990,7 +990,7 @@ static const char * const top_usage[] = {
990static const struct option options[] = { 990static const struct option options[] = {
991 OPT_CALLBACK('e', "event", &top.evlist, "event", 991 OPT_CALLBACK('e', "event", &top.evlist, "event",
992 "event selector. use 'perf list' to list available events", 992 "event selector. use 'perf list' to list available events",
993 parse_events), 993 parse_events_option),
994 OPT_INTEGER('c', "count", &default_interval, 994 OPT_INTEGER('c', "count", &default_interval,
995 "event period to sample"), 995 "event period to sample"),
996 OPT_INTEGER('p', "pid", &top.target_pid, 996 OPT_INTEGER('p', "pid", &top.target_pid,
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 1a79df9f739f..9b4ff16cac96 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -14,6 +14,11 @@ enum chain_mode {
14 CHAIN_GRAPH_REL 14 CHAIN_GRAPH_REL
15}; 15};
16 16
17enum chain_order {
18 ORDER_CALLER,
19 ORDER_CALLEE
20};
21
17struct callchain_node { 22struct callchain_node {
18 struct callchain_node *parent; 23 struct callchain_node *parent;
19 struct list_head siblings; 24 struct list_head siblings;
@@ -41,6 +46,7 @@ struct callchain_param {
41 u32 print_limit; 46 u32 print_limit;
42 double min_percent; 47 double min_percent;
43 sort_chain_func_t sort; 48 sort_chain_func_t sort;
49 enum chain_order order;
44}; 50};
45 51
46struct callchain_list { 52struct callchain_list {
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
new file mode 100644
index 000000000000..fddf40f30d3e
--- /dev/null
+++ b/tools/perf/util/dwarf-aux.c
@@ -0,0 +1,663 @@
1/*
2 * dwarf-aux.c : libdw auxiliary interfaces
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; either version 2 of the License, or
7 * (at your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 *
18 */
19
20#include <stdbool.h>
21#include "util.h"
22#include "debug.h"
23#include "dwarf-aux.h"
24
25/**
26 * cu_find_realpath - Find the realpath of the target file
27 * @cu_die: A DIE(dwarf information entry) of CU(compilation Unit)
28 * @fname: The tail filename of the target file
29 *
30 * Find the real(long) path of @fname in @cu_die.
31 */
32const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
33{
34 Dwarf_Files *files;
35 size_t nfiles, i;
36 const char *src = NULL;
37 int ret;
38
39 if (!fname)
40 return NULL;
41
42 ret = dwarf_getsrcfiles(cu_die, &files, &nfiles);
43 if (ret != 0)
44 return NULL;
45
46 for (i = 0; i < nfiles; i++) {
47 src = dwarf_filesrc(files, i, NULL, NULL);
48 if (strtailcmp(src, fname) == 0)
49 break;
50 }
51 if (i == nfiles)
52 return NULL;
53 return src;
54}
55
56/**
57 * cu_get_comp_dir - Get the path of compilation directory
58 * @cu_die: a CU DIE
59 *
60 * Get the path of compilation directory of given @cu_die.
61 * Since this depends on DW_AT_comp_dir, older gcc will not
62 * embedded it. In that case, this returns NULL.
63 */
64const char *cu_get_comp_dir(Dwarf_Die *cu_die)
65{
66 Dwarf_Attribute attr;
67 if (dwarf_attr(cu_die, DW_AT_comp_dir, &attr) == NULL)
68 return NULL;
69 return dwarf_formstring(&attr);
70}
71
72/**
73 * cu_find_lineinfo - Get a line number and file name for given address
74 * @cu_die: a CU DIE
75 * @addr: An address
76 * @fname: a pointer which returns the file name string
77 * @lineno: a pointer which returns the line number
78 *
79 * Find a line number and file name for @addr in @cu_die.
80 */
81int cu_find_lineinfo(Dwarf_Die *cu_die, unsigned long addr,
82 const char **fname, int *lineno)
83{
84 Dwarf_Line *line;
85 Dwarf_Addr laddr;
86
87 line = dwarf_getsrc_die(cu_die, (Dwarf_Addr)addr);
88 if (line && dwarf_lineaddr(line, &laddr) == 0 &&
89 addr == (unsigned long)laddr && dwarf_lineno(line, lineno) == 0) {
90 *fname = dwarf_linesrc(line, NULL, NULL);
91 if (!*fname)
92 /* line number is useless without filename */
93 *lineno = 0;
94 }
95
96 return *lineno ?: -ENOENT;
97}
98
99/**
100 * die_compare_name - Compare diename and tname
101 * @dw_die: a DIE
102 * @tname: a string of target name
103 *
104 * Compare the name of @dw_die and @tname. Return false if @dw_die has no name.
105 */
106bool die_compare_name(Dwarf_Die *dw_die, const char *tname)
107{
108 const char *name;
109 name = dwarf_diename(dw_die);
110 return name ? (strcmp(tname, name) == 0) : false;
111}
112
113/**
114 * die_get_call_lineno - Get callsite line number of inline-function instance
115 * @in_die: a DIE of an inlined function instance
116 *
117 * Get call-site line number of @in_die. This means from where the inline
118 * function is called.
119 */
120int die_get_call_lineno(Dwarf_Die *in_die)
121{
122 Dwarf_Attribute attr;
123 Dwarf_Word ret;
124
125 if (!dwarf_attr(in_die, DW_AT_call_line, &attr))
126 return -ENOENT;
127
128 dwarf_formudata(&attr, &ret);
129 return (int)ret;
130}
131
132/**
133 * die_get_type - Get type DIE
134 * @vr_die: a DIE of a variable
135 * @die_mem: where to store a type DIE
136 *
137 * Get a DIE of the type of given variable (@vr_die), and store
138 * it to die_mem. Return NULL if fails to get a type DIE.
139 */
140Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
141{
142 Dwarf_Attribute attr;
143
144 if (dwarf_attr_integrate(vr_die, DW_AT_type, &attr) &&
145 dwarf_formref_die(&attr, die_mem))
146 return die_mem;
147 else
148 return NULL;
149}
150
151/* Get a type die, but skip qualifiers */
152static Dwarf_Die *__die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
153{
154 int tag;
155
156 do {
157 vr_die = die_get_type(vr_die, die_mem);
158 if (!vr_die)
159 break;
160 tag = dwarf_tag(vr_die);
161 } while (tag == DW_TAG_const_type ||
162 tag == DW_TAG_restrict_type ||
163 tag == DW_TAG_volatile_type ||
164 tag == DW_TAG_shared_type);
165
166 return vr_die;
167}
168
169/**
170 * die_get_real_type - Get a type die, but skip qualifiers and typedef
171 * @vr_die: a DIE of a variable
172 * @die_mem: where to store a type DIE
173 *
174 * Get a DIE of the type of given variable (@vr_die), and store
175 * it to die_mem. Return NULL if fails to get a type DIE.
176 * If the type is qualifiers (e.g. const) or typedef, this skips it
177 * and tries to find real type (structure or basic types, e.g. int).
178 */
179Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
180{
181 do {
182 vr_die = __die_get_real_type(vr_die, die_mem);
183 } while (vr_die && dwarf_tag(vr_die) == DW_TAG_typedef);
184
185 return vr_die;
186}
187
188/* Get attribute and translate it as a udata */
189static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
190 Dwarf_Word *result)
191{
192 Dwarf_Attribute attr;
193
194 if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
195 dwarf_formudata(&attr, result) != 0)
196 return -ENOENT;
197
198 return 0;
199}
200
201/**
202 * die_is_signed_type - Check whether a type DIE is signed or not
203 * @tp_die: a DIE of a type
204 *
205 * Get the encoding of @tp_die and return true if the encoding
206 * is signed.
207 */
208bool die_is_signed_type(Dwarf_Die *tp_die)
209{
210 Dwarf_Word ret;
211
212 if (die_get_attr_udata(tp_die, DW_AT_encoding, &ret))
213 return false;
214
215 return (ret == DW_ATE_signed_char || ret == DW_ATE_signed ||
216 ret == DW_ATE_signed_fixed);
217}
218
219/**
220 * die_get_data_member_location - Get the data-member offset
221 * @mb_die: a DIE of a member of a data structure
222 * @offs: The offset of the member in the data structure
223 *
224 * Get the offset of @mb_die in the data structure including @mb_die, and
225 * stores result offset to @offs. If any error occurs this returns errno.
226 */
227int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs)
228{
229 Dwarf_Attribute attr;
230 Dwarf_Op *expr;
231 size_t nexpr;
232 int ret;
233
234 if (dwarf_attr(mb_die, DW_AT_data_member_location, &attr) == NULL)
235 return -ENOENT;
236
237 if (dwarf_formudata(&attr, offs) != 0) {
238 /* DW_AT_data_member_location should be DW_OP_plus_uconst */
239 ret = dwarf_getlocation(&attr, &expr, &nexpr);
240 if (ret < 0 || nexpr == 0)
241 return -ENOENT;
242
243 if (expr[0].atom != DW_OP_plus_uconst || nexpr != 1) {
244 pr_debug("Unable to get offset:Unexpected OP %x (%zd)\n",
245 expr[0].atom, nexpr);
246 return -ENOTSUP;
247 }
248 *offs = (Dwarf_Word)expr[0].number;
249 }
250 return 0;
251}
252
253/**
254 * die_find_child - Generic DIE search function in DIE tree
255 * @rt_die: a root DIE
256 * @callback: a callback function
257 * @data: a user data passed to the callback function
258 * @die_mem: a buffer for result DIE
259 *
260 * Trace DIE tree from @rt_die and call @callback for each child DIE.
261 * If @callback returns DIE_FIND_CB_END, this stores the DIE into
262 * @die_mem and returns it. If @callback returns DIE_FIND_CB_CONTINUE,
263 * this continues to trace the tree. Optionally, @callback can return
264 * DIE_FIND_CB_CHILD and DIE_FIND_CB_SIBLING, those means trace only
265 * the children and trace only the siblings respectively.
266 * Returns NULL if @callback can't find any appropriate DIE.
267 */
268Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
269 int (*callback)(Dwarf_Die *, void *),
270 void *data, Dwarf_Die *die_mem)
271{
272 Dwarf_Die child_die;
273 int ret;
274
275 ret = dwarf_child(rt_die, die_mem);
276 if (ret != 0)
277 return NULL;
278
279 do {
280 ret = callback(die_mem, data);
281 if (ret == DIE_FIND_CB_END)
282 return die_mem;
283
284 if ((ret & DIE_FIND_CB_CHILD) &&
285 die_find_child(die_mem, callback, data, &child_die)) {
286 memcpy(die_mem, &child_die, sizeof(Dwarf_Die));
287 return die_mem;
288 }
289 } while ((ret & DIE_FIND_CB_SIBLING) &&
290 dwarf_siblingof(die_mem, die_mem) == 0);
291
292 return NULL;
293}
294
295struct __addr_die_search_param {
296 Dwarf_Addr addr;
297 Dwarf_Die *die_mem;
298};
299
300/* die_find callback for non-inlined function search */
301static int __die_search_func_cb(Dwarf_Die *fn_die, void *data)
302{
303 struct __addr_die_search_param *ad = data;
304
305 if (dwarf_tag(fn_die) == DW_TAG_subprogram &&
306 dwarf_haspc(fn_die, ad->addr)) {
307 memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die));
308 return DWARF_CB_ABORT;
309 }
310 return DWARF_CB_OK;
311}
312
313/**
314 * die_find_realfunc - Search a non-inlined function at given address
315 * @cu_die: a CU DIE which including @addr
316 * @addr: target address
317 * @die_mem: a buffer for result DIE
318 *
319 * Search a non-inlined function DIE which includes @addr. Stores the
320 * DIE to @die_mem and returns it if found. Returns NULl if failed.
321 */
322Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
323 Dwarf_Die *die_mem)
324{
325 struct __addr_die_search_param ad;
326 ad.addr = addr;
327 ad.die_mem = die_mem;
328 /* dwarf_getscopes can't find subprogram. */
329 if (!dwarf_getfuncs(cu_die, __die_search_func_cb, &ad, 0))
330 return NULL;
331 else
332 return die_mem;
333}
334
335/* die_find callback for inline function search */
336static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data)
337{
338 Dwarf_Addr *addr = data;
339
340 if (dwarf_tag(die_mem) == DW_TAG_inlined_subroutine &&
341 dwarf_haspc(die_mem, *addr))
342 return DIE_FIND_CB_END;
343
344 return DIE_FIND_CB_CONTINUE;
345}
346
347/**
348 * die_find_inlinefunc - Search an inlined function at given address
349 * @cu_die: a CU DIE which including @addr
350 * @addr: target address
351 * @die_mem: a buffer for result DIE
352 *
353 * Search an inlined function DIE which includes @addr. Stores the
354 * DIE to @die_mem and returns it if found. Returns NULl if failed.
355 * If several inlined functions are expanded recursively, this trace
356 * it and returns deepest one.
357 */
358Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
359 Dwarf_Die *die_mem)
360{
361 Dwarf_Die tmp_die;
362
363 sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die);
364 if (!sp_die)
365 return NULL;
366
367 /* Inlined function could be recursive. Trace it until fail */
368 while (sp_die) {
369 memcpy(die_mem, sp_die, sizeof(Dwarf_Die));
370 sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr,
371 &tmp_die);
372 }
373
374 return die_mem;
375}
376
377/* Line walker internal parameters */
378struct __line_walk_param {
379 const char *fname;
380 line_walk_callback_t callback;
381 void *data;
382 int retval;
383};
384
385static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data)
386{
387 struct __line_walk_param *lw = data;
388 Dwarf_Addr addr;
389 int lineno;
390
391 if (dwarf_tag(in_die) == DW_TAG_inlined_subroutine) {
392 lineno = die_get_call_lineno(in_die);
393 if (lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
394 lw->retval = lw->callback(lw->fname, lineno, addr,
395 lw->data);
396 if (lw->retval != 0)
397 return DIE_FIND_CB_END;
398 }
399 }
400 return DIE_FIND_CB_SIBLING;
401}
402
403/* Walk on lines of blocks included in given DIE */
404static int __die_walk_funclines(Dwarf_Die *sp_die,
405 line_walk_callback_t callback, void *data)
406{
407 struct __line_walk_param lw = {
408 .callback = callback,
409 .data = data,
410 .retval = 0,
411 };
412 Dwarf_Die die_mem;
413 Dwarf_Addr addr;
414 int lineno;
415
416 /* Handle function declaration line */
417 lw.fname = dwarf_decl_file(sp_die);
418 if (lw.fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
419 dwarf_entrypc(sp_die, &addr) == 0) {
420 lw.retval = callback(lw.fname, lineno, addr, data);
421 if (lw.retval != 0)
422 goto done;
423 }
424 die_find_child(sp_die, __die_walk_funclines_cb, &lw, &die_mem);
425done:
426 return lw.retval;
427}
428
429static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
430{
431 struct __line_walk_param *lw = data;
432
433 lw->retval = __die_walk_funclines(sp_die, lw->callback, lw->data);
434 if (lw->retval != 0)
435 return DWARF_CB_ABORT;
436
437 return DWARF_CB_OK;
438}
439
440/**
441 * die_walk_lines - Walk on lines inside given DIE
442 * @rt_die: a root DIE (CU or subprogram)
443 * @callback: callback routine
444 * @data: user data
445 *
446 * Walk on all lines inside given @rt_die and call @callback on each line.
447 * If the @rt_die is a function, walk only on the lines inside the function,
448 * otherwise @rt_die must be a CU DIE.
449 * Note that this walks not only dwarf line list, but also function entries
450 * and inline call-site.
451 */
452int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
453{
454 Dwarf_Lines *lines;
455 Dwarf_Line *line;
456 Dwarf_Addr addr;
457 const char *fname;
458 int lineno, ret = 0;
459 Dwarf_Die die_mem, *cu_die;
460 size_t nlines, i;
461
462 /* Get the CU die */
463 if (dwarf_tag(rt_die) == DW_TAG_subprogram)
464 cu_die = dwarf_diecu(rt_die, &die_mem, NULL, NULL);
465 else
466 cu_die = rt_die;
467 if (!cu_die) {
468 pr_debug2("Failed to get CU from subprogram\n");
469 return -EINVAL;
470 }
471
472 /* Get lines list in the CU */
473 if (dwarf_getsrclines(cu_die, &lines, &nlines) != 0) {
474 pr_debug2("Failed to get source lines on this CU.\n");
475 return -ENOENT;
476 }
477 pr_debug2("Get %zd lines from this CU\n", nlines);
478
479 /* Walk on the lines on lines list */
480 for (i = 0; i < nlines; i++) {
481 line = dwarf_onesrcline(lines, i);
482 if (line == NULL ||
483 dwarf_lineno(line, &lineno) != 0 ||
484 dwarf_lineaddr(line, &addr) != 0) {
485 pr_debug2("Failed to get line info. "
486 "Possible error in debuginfo.\n");
487 continue;
488 }
489 /* Filter lines based on address */
490 if (rt_die != cu_die)
491 /*
492 * Address filtering
493 * The line is included in given function, and
494 * no inline block includes it.
495 */
496 if (!dwarf_haspc(rt_die, addr) ||
497 die_find_inlinefunc(rt_die, addr, &die_mem))
498 continue;
499 /* Get source line */
500 fname = dwarf_linesrc(line, NULL, NULL);
501
502 ret = callback(fname, lineno, addr, data);
503 if (ret != 0)
504 return ret;
505 }
506
507 /*
508 * Dwarf lines doesn't include function declarations and inlined
509 * subroutines. We have to check functions list or given function.
510 */
511 if (rt_die != cu_die)
512 ret = __die_walk_funclines(rt_die, callback, data);
513 else {
514 struct __line_walk_param param = {
515 .callback = callback,
516 .data = data,
517 .retval = 0,
518 };
519 dwarf_getfuncs(cu_die, __die_walk_culines_cb, &param, 0);
520 ret = param.retval;
521 }
522
523 return ret;
524}
525
526struct __find_variable_param {
527 const char *name;
528 Dwarf_Addr addr;
529};
530
531static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
532{
533 struct __find_variable_param *fvp = data;
534 int tag;
535
536 tag = dwarf_tag(die_mem);
537 if ((tag == DW_TAG_formal_parameter ||
538 tag == DW_TAG_variable) &&
539 die_compare_name(die_mem, fvp->name))
540 return DIE_FIND_CB_END;
541
542 if (dwarf_haspc(die_mem, fvp->addr))
543 return DIE_FIND_CB_CONTINUE;
544 else
545 return DIE_FIND_CB_SIBLING;
546}
547
548/**
549 * die_find_variable_at - Find a given name variable at given address
550 * @sp_die: a function DIE
551 * @name: variable name
552 * @addr: address
553 * @die_mem: a buffer for result DIE
554 *
555 * Find a variable DIE called @name at @addr in @sp_die.
556 */
557Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
558 Dwarf_Addr addr, Dwarf_Die *die_mem)
559{
560 struct __find_variable_param fvp = { .name = name, .addr = addr};
561
562 return die_find_child(sp_die, __die_find_variable_cb, (void *)&fvp,
563 die_mem);
564}
565
566static int __die_find_member_cb(Dwarf_Die *die_mem, void *data)
567{
568 const char *name = data;
569
570 if ((dwarf_tag(die_mem) == DW_TAG_member) &&
571 die_compare_name(die_mem, name))
572 return DIE_FIND_CB_END;
573
574 return DIE_FIND_CB_SIBLING;
575}
576
577/**
578 * die_find_member - Find a given name member in a data structure
579 * @st_die: a data structure type DIE
580 * @name: member name
581 * @die_mem: a buffer for result DIE
582 *
583 * Find a member DIE called @name in @st_die.
584 */
585Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
586 Dwarf_Die *die_mem)
587{
588 return die_find_child(st_die, __die_find_member_cb, (void *)name,
589 die_mem);
590}
591
592/**
593 * die_get_typename - Get the name of given variable DIE
594 * @vr_die: a variable DIE
595 * @buf: a buffer for result type name
596 * @len: a max-length of @buf
597 *
598 * Get the name of @vr_die and stores it to @buf. Return the actual length
599 * of type name if succeeded. Return -E2BIG if @len is not enough long, and
600 * Return -ENOENT if failed to find type name.
601 * Note that the result will stores typedef name if possible, and stores
602 * "*(function_type)" if the type is a function pointer.
603 */
604int die_get_typename(Dwarf_Die *vr_die, char *buf, int len)
605{
606 Dwarf_Die type;
607 int tag, ret, ret2;
608 const char *tmp = "";
609
610 if (__die_get_real_type(vr_die, &type) == NULL)
611 return -ENOENT;
612
613 tag = dwarf_tag(&type);
614 if (tag == DW_TAG_array_type || tag == DW_TAG_pointer_type)
615 tmp = "*";
616 else if (tag == DW_TAG_subroutine_type) {
617 /* Function pointer */
618 ret = snprintf(buf, len, "(function_type)");
619 return (ret >= len) ? -E2BIG : ret;
620 } else {
621 if (!dwarf_diename(&type))
622 return -ENOENT;
623 if (tag == DW_TAG_union_type)
624 tmp = "union ";
625 else if (tag == DW_TAG_structure_type)
626 tmp = "struct ";
627 /* Write a base name */
628 ret = snprintf(buf, len, "%s%s", tmp, dwarf_diename(&type));
629 return (ret >= len) ? -E2BIG : ret;
630 }
631 ret = die_get_typename(&type, buf, len);
632 if (ret > 0) {
633 ret2 = snprintf(buf + ret, len - ret, "%s", tmp);
634 ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
635 }
636 return ret;
637}
638
639/**
640 * die_get_varname - Get the name and type of given variable DIE
641 * @vr_die: a variable DIE
642 * @buf: a buffer for type and variable name
643 * @len: the max-length of @buf
644 *
645 * Get the name and type of @vr_die and stores it in @buf as "type\tname".
646 */
647int die_get_varname(Dwarf_Die *vr_die, char *buf, int len)
648{
649 int ret, ret2;
650
651 ret = die_get_typename(vr_die, buf, len);
652 if (ret < 0) {
653 pr_debug("Failed to get type, make it unknown.\n");
654 ret = snprintf(buf, len, "(unknown_type)");
655 }
656 if (ret > 0) {
657 ret2 = snprintf(buf + ret, len - ret, "\t%s",
658 dwarf_diename(vr_die));
659 ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
660 }
661 return ret;
662}
663
diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
new file mode 100644
index 000000000000..bc3b21167e70
--- /dev/null
+++ b/tools/perf/util/dwarf-aux.h
@@ -0,0 +1,100 @@
1#ifndef _DWARF_AUX_H
2#define _DWARF_AUX_H
3/*
4 * dwarf-aux.h : libdw auxiliary interfaces
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 *
20 */
21
22#include <dwarf.h>
23#include <elfutils/libdw.h>
24#include <elfutils/libdwfl.h>
25#include <elfutils/version.h>
26
27/* Find the realpath of the target file */
28extern const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
29
30/* Get DW_AT_comp_dir (should be NULL with older gcc) */
31extern const char *cu_get_comp_dir(Dwarf_Die *cu_die);
32
33/* Get a line number and file name for given address */
34extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
35 const char **fname, int *lineno);
36
37/* Compare diename and tname */
38extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
39
40/* Get callsite line number of inline-function instance */
41extern int die_get_call_lineno(Dwarf_Die *in_die);
42
43/* Get type die */
44extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
45
46/* Get a type die, but skip qualifiers and typedef */
47extern Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
48
49/* Check whether the DIE is signed or not */
50extern bool die_is_signed_type(Dwarf_Die *tp_die);
51
52/* Get data_member_location offset */
53extern int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
54
55/* Return values for die_find_child() callbacks */
56enum {
57 DIE_FIND_CB_END = 0, /* End of Search */
58 DIE_FIND_CB_CHILD = 1, /* Search only children */
59 DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
60 DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
61};
62
63/* Search child DIEs */
64extern Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
65 int (*callback)(Dwarf_Die *, void *),
66 void *data, Dwarf_Die *die_mem);
67
68/* Search a non-inlined function including given address */
69extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
70 Dwarf_Die *die_mem);
71
72/* Search an inlined function including given address */
73extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
74 Dwarf_Die *die_mem);
75
76/* Walker on lines (Note: line number will not be sorted) */
77typedef int (* line_walk_callback_t) (const char *fname, int lineno,
78 Dwarf_Addr addr, void *data);
79
80/*
81 * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
82 * the lines inside the subprogram, otherwise the DIE must be a CU DIE.
83 */
84extern int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback,
85 void *data);
86
87/* Find a variable called 'name' at given address */
88extern Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
89 Dwarf_Addr addr, Dwarf_Die *die_mem);
90
91/* Find a member called 'name' */
92extern Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
93 Dwarf_Die *die_mem);
94
95/* Get the name of given variable DIE */
96extern int die_get_typename(Dwarf_Die *vr_die, char *buf, int len);
97
98/* Get the name and type of given variable DIE, stored as "type\tname" */
99extern int die_get_varname(Dwarf_Die *vr_die, char *buf, int len);
100#endif
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0239eb87b232..a03a36b7908a 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -377,6 +377,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
377 array++; 377 array++;
378 } 378 }
379 379
380 data->addr = 0;
380 if (type & PERF_SAMPLE_ADDR) { 381 if (type & PERF_SAMPLE_ADDR) {
381 data->addr = *array; 382 data->addr = *array;
382 array++; 383 array++;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 7e9366e4490b..e9a31554e265 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -61,6 +61,7 @@ struct perf_evsel {
61 off_t id_offset; 61 off_t id_offset;
62 }; 62 };
63 struct cgroup_sel *cgrp; 63 struct cgroup_sel *cgrp;
64 bool supported;
64}; 65};
65 66
66struct cpu_map; 67struct cpu_map;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index afb0849fe530..cb2959a3fb43 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -877,9 +877,12 @@ int perf_session__read_header(struct perf_session *session, int fd)
877 struct perf_evsel *evsel; 877 struct perf_evsel *evsel;
878 off_t tmp; 878 off_t tmp;
879 879
880 if (perf_header__getbuffer64(header, fd, &f_attr, sizeof(f_attr))) 880 if (readn(fd, &f_attr, sizeof(f_attr)) <= 0)
881 goto out_errno; 881 goto out_errno;
882 882
883 if (header->needs_swap)
884 perf_event__attr_swap(&f_attr.attr);
885
883 tmp = lseek(fd, 0, SEEK_CUR); 886 tmp = lseek(fd, 0, SEEK_CUR);
884 evsel = perf_evsel__new(&f_attr.attr, i); 887 evsel = perf_evsel__new(&f_attr.attr, i);
885 888
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 627a02e03c57..677e1da6bb3e 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -14,7 +14,8 @@ enum hist_filter {
14 14
15struct callchain_param callchain_param = { 15struct callchain_param callchain_param = {
16 .mode = CHAIN_GRAPH_REL, 16 .mode = CHAIN_GRAPH_REL,
17 .min_percent = 0.5 17 .min_percent = 0.5,
18 .order = ORDER_CALLEE
18}; 19};
19 20
20u16 hists__col_len(struct hists *self, enum hist_column col) 21u16 hists__col_len(struct hists *self, enum hist_column col)
@@ -846,6 +847,9 @@ print_entries:
846 for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) { 847 for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
847 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node); 848 struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
848 849
850 if (h->filtered)
851 continue;
852
849 if (show_displacement) { 853 if (show_displacement) {
850 if (h->pair != NULL) 854 if (h->pair != NULL)
851 displacement = ((long)h->pair->position - 855 displacement = ((long)h->pair->position -
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 41982c373faf..4ea7e19f5251 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -86,22 +86,24 @@ static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
86 86
87#define MAX_ALIASES 8 87#define MAX_ALIASES 8
88 88
89static const char *hw_cache[][MAX_ALIASES] = { 89static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
90 { "L1-dcache", "l1-d", "l1d", "L1-data", }, 90 { "L1-dcache", "l1-d", "l1d", "L1-data", },
91 { "L1-icache", "l1-i", "l1i", "L1-instruction", }, 91 { "L1-icache", "l1-i", "l1i", "L1-instruction", },
92 { "LLC", "L2" }, 92 { "LLC", "L2", },
93 { "dTLB", "d-tlb", "Data-TLB", }, 93 { "dTLB", "d-tlb", "Data-TLB", },
94 { "iTLB", "i-tlb", "Instruction-TLB", }, 94 { "iTLB", "i-tlb", "Instruction-TLB", },
95 { "branch", "branches", "bpu", "btb", "bpc", }, 95 { "branch", "branches", "bpu", "btb", "bpc", },
96 { "node", },
96}; 97};
97 98
98static const char *hw_cache_op[][MAX_ALIASES] = { 99static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
99 { "load", "loads", "read", }, 100 { "load", "loads", "read", },
100 { "store", "stores", "write", }, 101 { "store", "stores", "write", },
101 { "prefetch", "prefetches", "speculative-read", "speculative-load", }, 102 { "prefetch", "prefetches", "speculative-read", "speculative-load", },
102}; 103};
103 104
104static const char *hw_cache_result[][MAX_ALIASES] = { 105static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
106 [MAX_ALIASES] = {
105 { "refs", "Reference", "ops", "access", }, 107 { "refs", "Reference", "ops", "access", },
106 { "misses", "miss", }, 108 { "misses", "miss", },
107}; 109};
@@ -124,6 +126,7 @@ static unsigned long hw_cache_stat[C(MAX)] = {
124 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH), 126 [C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
125 [C(ITLB)] = (CACHE_READ), 127 [C(ITLB)] = (CACHE_READ),
126 [C(BPU)] = (CACHE_READ), 128 [C(BPU)] = (CACHE_READ),
129 [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
127}; 130};
128 131
129#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \ 132#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
@@ -393,7 +396,7 @@ parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
393 PERF_COUNT_HW_CACHE_OP_MAX); 396 PERF_COUNT_HW_CACHE_OP_MAX);
394 if (cache_op >= 0) { 397 if (cache_op >= 0) {
395 if (!is_cache_op_valid(cache_type, cache_op)) 398 if (!is_cache_op_valid(cache_type, cache_op))
396 return 0; 399 return EVT_FAILED;
397 continue; 400 continue;
398 } 401 }
399 } 402 }
@@ -475,7 +478,7 @@ parse_single_tracepoint_event(char *sys_name,
475/* sys + ':' + event + ':' + flags*/ 478/* sys + ':' + event + ':' + flags*/
476#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128) 479#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
477static enum event_result 480static enum event_result
478parse_multiple_tracepoint_event(const struct option *opt, char *sys_name, 481parse_multiple_tracepoint_event(struct perf_evlist *evlist, char *sys_name,
479 const char *evt_exp, char *flags) 482 const char *evt_exp, char *flags)
480{ 483{
481 char evt_path[MAXPATHLEN]; 484 char evt_path[MAXPATHLEN];
@@ -509,7 +512,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
509 if (len < 0) 512 if (len < 0)
510 return EVT_FAILED; 513 return EVT_FAILED;
511 514
512 if (parse_events(opt, event_opt, 0)) 515 if (parse_events(evlist, event_opt, 0))
513 return EVT_FAILED; 516 return EVT_FAILED;
514 } 517 }
515 518
@@ -517,7 +520,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
517} 520}
518 521
519static enum event_result 522static enum event_result
520parse_tracepoint_event(const struct option *opt, const char **strp, 523parse_tracepoint_event(struct perf_evlist *evlist, const char **strp,
521 struct perf_event_attr *attr) 524 struct perf_event_attr *attr)
522{ 525{
523 const char *evt_name; 526 const char *evt_name;
@@ -557,8 +560,8 @@ parse_tracepoint_event(const struct option *opt, const char **strp,
557 return EVT_FAILED; 560 return EVT_FAILED;
558 if (strpbrk(evt_name, "*?")) { 561 if (strpbrk(evt_name, "*?")) {
559 *strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */ 562 *strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
560 return parse_multiple_tracepoint_event(opt, sys_name, evt_name, 563 return parse_multiple_tracepoint_event(evlist, sys_name,
561 flags); 564 evt_name, flags);
562 } else { 565 } else {
563 return parse_single_tracepoint_event(sys_name, evt_name, 566 return parse_single_tracepoint_event(sys_name, evt_name,
564 evt_length, attr, strp); 567 evt_length, attr, strp);
@@ -778,12 +781,12 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr)
778 * Symbolic names are (almost) exactly matched. 781 * Symbolic names are (almost) exactly matched.
779 */ 782 */
780static enum event_result 783static enum event_result
781parse_event_symbols(const struct option *opt, const char **str, 784parse_event_symbols(struct perf_evlist *evlist, const char **str,
782 struct perf_event_attr *attr) 785 struct perf_event_attr *attr)
783{ 786{
784 enum event_result ret; 787 enum event_result ret;
785 788
786 ret = parse_tracepoint_event(opt, str, attr); 789 ret = parse_tracepoint_event(evlist, str, attr);
787 if (ret != EVT_FAILED) 790 if (ret != EVT_FAILED)
788 goto modifier; 791 goto modifier;
789 792
@@ -822,9 +825,8 @@ modifier:
822 return ret; 825 return ret;
823} 826}
824 827
825int parse_events(const struct option *opt, const char *str, int unset __used) 828int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
826{ 829{
827 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
828 struct perf_event_attr attr; 830 struct perf_event_attr attr;
829 enum event_result ret; 831 enum event_result ret;
830 const char *ostr; 832 const char *ostr;
@@ -832,7 +834,7 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
832 for (;;) { 834 for (;;) {
833 ostr = str; 835 ostr = str;
834 memset(&attr, 0, sizeof(attr)); 836 memset(&attr, 0, sizeof(attr));
835 ret = parse_event_symbols(opt, &str, &attr); 837 ret = parse_event_symbols(evlist, &str, &attr);
836 if (ret == EVT_FAILED) 838 if (ret == EVT_FAILED)
837 return -1; 839 return -1;
838 840
@@ -863,6 +865,13 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
863 return 0; 865 return 0;
864} 866}
865 867
868int parse_events_option(const struct option *opt, const char *str,
869 int unset __used)
870{
871 struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
872 return parse_events(evlist, str, unset);
873}
874
866int parse_filter(const struct option *opt, const char *str, 875int parse_filter(const struct option *opt, const char *str,
867 int unset __used) 876 int unset __used)
868{ 877{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 746d3fcbfc2a..2f8e375e038d 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -8,6 +8,7 @@
8 8
9struct list_head; 9struct list_head;
10struct perf_evsel; 10struct perf_evsel;
11struct perf_evlist;
11 12
12struct option; 13struct option;
13 14
@@ -24,7 +25,10 @@ const char *event_type(int type);
24const char *event_name(struct perf_evsel *event); 25const char *event_name(struct perf_evsel *event);
25extern const char *__event_name(int type, u64 config); 26extern const char *__event_name(int type, u64 config);
26 27
27extern int parse_events(const struct option *opt, const char *str, int unset); 28extern int parse_events_option(const struct option *opt, const char *str,
29 int unset);
30extern int parse_events(struct perf_evlist *evlist, const char *str,
31 int unset);
28extern int parse_filter(const struct option *opt, const char *str, int unset); 32extern int parse_filter(const struct option *opt, const char *str, int unset);
29 33
30#define EVENTS_HELP_MAX (128*1024) 34#define EVENTS_HELP_MAX (128*1024)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f0223166e761..b82d54fa2c56 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -117,6 +117,10 @@ static struct map *kernel_get_module_map(const char *module)
117 struct rb_node *nd; 117 struct rb_node *nd;
118 struct map_groups *grp = &machine.kmaps; 118 struct map_groups *grp = &machine.kmaps;
119 119
120 /* A file path -- this is an offline module */
121 if (module && strchr(module, '/'))
122 return machine__new_module(&machine, 0, module);
123
120 if (!module) 124 if (!module)
121 module = "kernel"; 125 module = "kernel";
122 126
@@ -170,16 +174,24 @@ const char *kernel_get_module_path(const char *module)
170} 174}
171 175
172#ifdef DWARF_SUPPORT 176#ifdef DWARF_SUPPORT
173static int open_vmlinux(const char *module) 177/* Open new debuginfo of given module */
178static struct debuginfo *open_debuginfo(const char *module)
174{ 179{
175 const char *path = kernel_get_module_path(module); 180 const char *path;
176 if (!path) { 181
177 pr_err("Failed to find path of %s module.\n", 182 /* A file path -- this is an offline module */
178 module ?: "kernel"); 183 if (module && strchr(module, '/'))
179 return -ENOENT; 184 path = module;
185 else {
186 path = kernel_get_module_path(module);
187
188 if (!path) {
189 pr_err("Failed to find path of %s module.\n",
190 module ?: "kernel");
191 return NULL;
192 }
180 } 193 }
181 pr_debug("Try to open %s\n", path); 194 return debuginfo__new(path);
182 return open(path, O_RDONLY);
183} 195}
184 196
185/* 197/*
@@ -193,13 +205,24 @@ static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
193 struct map *map; 205 struct map *map;
194 u64 addr; 206 u64 addr;
195 int ret = -ENOENT; 207 int ret = -ENOENT;
208 struct debuginfo *dinfo;
196 209
197 sym = __find_kernel_function_by_name(tp->symbol, &map); 210 sym = __find_kernel_function_by_name(tp->symbol, &map);
198 if (sym) { 211 if (sym) {
199 addr = map->unmap_ip(map, sym->start + tp->offset); 212 addr = map->unmap_ip(map, sym->start + tp->offset);
200 pr_debug("try to find %s+%ld@%" PRIx64 "\n", tp->symbol, 213 pr_debug("try to find %s+%ld@%" PRIx64 "\n", tp->symbol,
201 tp->offset, addr); 214 tp->offset, addr);
202 ret = find_perf_probe_point((unsigned long)addr, pp); 215
216 dinfo = debuginfo__new_online_kernel(addr);
217 if (dinfo) {
218 ret = debuginfo__find_probe_point(dinfo,
219 (unsigned long)addr, pp);
220 debuginfo__delete(dinfo);
221 } else {
222 pr_debug("Failed to open debuginfo at 0x%" PRIx64 "\n",
223 addr);
224 ret = -ENOENT;
225 }
203 } 226 }
204 if (ret <= 0) { 227 if (ret <= 0) {
205 pr_debug("Failed to find corresponding probes from " 228 pr_debug("Failed to find corresponding probes from "
@@ -214,30 +237,70 @@ static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
214 return 0; 237 return 0;
215} 238}
216 239
240static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
241 int ntevs, const char *module)
242{
243 int i, ret = 0;
244 char *tmp;
245
246 if (!module)
247 return 0;
248
249 tmp = strrchr(module, '/');
250 if (tmp) {
251 /* This is a module path -- get the module name */
252 module = strdup(tmp + 1);
253 if (!module)
254 return -ENOMEM;
255 tmp = strchr(module, '.');
256 if (tmp)
257 *tmp = '\0';
258 tmp = (char *)module; /* For free() */
259 }
260
261 for (i = 0; i < ntevs; i++) {
262 tevs[i].point.module = strdup(module);
263 if (!tevs[i].point.module) {
264 ret = -ENOMEM;
265 break;
266 }
267 }
268
269 if (tmp)
270 free(tmp);
271
272 return ret;
273}
274
217/* Try to find perf_probe_event with debuginfo */ 275/* Try to find perf_probe_event with debuginfo */
218static int try_to_find_probe_trace_events(struct perf_probe_event *pev, 276static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
219 struct probe_trace_event **tevs, 277 struct probe_trace_event **tevs,
220 int max_tevs, const char *module) 278 int max_tevs, const char *module)
221{ 279{
222 bool need_dwarf = perf_probe_event_need_dwarf(pev); 280 bool need_dwarf = perf_probe_event_need_dwarf(pev);
223 int fd, ntevs; 281 struct debuginfo *dinfo = open_debuginfo(module);
282 int ntevs, ret = 0;
224 283
225 fd = open_vmlinux(module); 284 if (!dinfo) {
226 if (fd < 0) {
227 if (need_dwarf) { 285 if (need_dwarf) {
228 pr_warning("Failed to open debuginfo file.\n"); 286 pr_warning("Failed to open debuginfo file.\n");
229 return fd; 287 return -ENOENT;
230 } 288 }
231 pr_debug("Could not open vmlinux. Try to use symbols.\n"); 289 pr_debug("Could not open debuginfo. Try to use symbols.\n");
232 return 0; 290 return 0;
233 } 291 }
234 292
235 /* Searching trace events corresponding to probe event */ 293 /* Searching trace events corresponding to a probe event */
236 ntevs = find_probe_trace_events(fd, pev, tevs, max_tevs); 294 ntevs = debuginfo__find_trace_events(dinfo, pev, tevs, max_tevs);
295
296 debuginfo__delete(dinfo);
237 297
238 if (ntevs > 0) { /* Succeeded to find trace events */ 298 if (ntevs > 0) { /* Succeeded to find trace events */
239 pr_debug("find %d probe_trace_events.\n", ntevs); 299 pr_debug("find %d probe_trace_events.\n", ntevs);
240 return ntevs; 300 if (module)
301 ret = add_module_to_probe_trace_events(*tevs, ntevs,
302 module);
303 return ret < 0 ? ret : ntevs;
241 } 304 }
242 305
243 if (ntevs == 0) { /* No error but failed to find probe point. */ 306 if (ntevs == 0) { /* No error but failed to find probe point. */
@@ -371,8 +434,9 @@ int show_line_range(struct line_range *lr, const char *module)
371{ 434{
372 int l = 1; 435 int l = 1;
373 struct line_node *ln; 436 struct line_node *ln;
437 struct debuginfo *dinfo;
374 FILE *fp; 438 FILE *fp;
375 int fd, ret; 439 int ret;
376 char *tmp; 440 char *tmp;
377 441
378 /* Search a line range */ 442 /* Search a line range */
@@ -380,13 +444,14 @@ int show_line_range(struct line_range *lr, const char *module)
380 if (ret < 0) 444 if (ret < 0)
381 return ret; 445 return ret;
382 446
383 fd = open_vmlinux(module); 447 dinfo = open_debuginfo(module);
384 if (fd < 0) { 448 if (!dinfo) {
385 pr_warning("Failed to open debuginfo file.\n"); 449 pr_warning("Failed to open debuginfo file.\n");
386 return fd; 450 return -ENOENT;
387 } 451 }
388 452
389 ret = find_line_range(fd, lr); 453 ret = debuginfo__find_line_range(dinfo, lr);
454 debuginfo__delete(dinfo);
390 if (ret == 0) { 455 if (ret == 0) {
391 pr_warning("Specified source line is not found.\n"); 456 pr_warning("Specified source line is not found.\n");
392 return -ENOENT; 457 return -ENOENT;
@@ -448,7 +513,8 @@ end:
448 return ret; 513 return ret;
449} 514}
450 515
451static int show_available_vars_at(int fd, struct perf_probe_event *pev, 516static int show_available_vars_at(struct debuginfo *dinfo,
517 struct perf_probe_event *pev,
452 int max_vls, struct strfilter *_filter, 518 int max_vls, struct strfilter *_filter,
453 bool externs) 519 bool externs)
454{ 520{
@@ -463,7 +529,8 @@ static int show_available_vars_at(int fd, struct perf_probe_event *pev,
463 return -EINVAL; 529 return -EINVAL;
464 pr_debug("Searching variables at %s\n", buf); 530 pr_debug("Searching variables at %s\n", buf);
465 531
466 ret = find_available_vars_at(fd, pev, &vls, max_vls, externs); 532 ret = debuginfo__find_available_vars_at(dinfo, pev, &vls,
533 max_vls, externs);
467 if (ret <= 0) { 534 if (ret <= 0) {
468 pr_err("Failed to find variables at %s (%d)\n", buf, ret); 535 pr_err("Failed to find variables at %s (%d)\n", buf, ret);
469 goto end; 536 goto end;
@@ -504,24 +571,26 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
504 int max_vls, const char *module, 571 int max_vls, const char *module,
505 struct strfilter *_filter, bool externs) 572 struct strfilter *_filter, bool externs)
506{ 573{
507 int i, fd, ret = 0; 574 int i, ret = 0;
575 struct debuginfo *dinfo;
508 576
509 ret = init_vmlinux(); 577 ret = init_vmlinux();
510 if (ret < 0) 578 if (ret < 0)
511 return ret; 579 return ret;
512 580
581 dinfo = open_debuginfo(module);
582 if (!dinfo) {
583 pr_warning("Failed to open debuginfo file.\n");
584 return -ENOENT;
585 }
586
513 setup_pager(); 587 setup_pager();
514 588
515 for (i = 0; i < npevs && ret >= 0; i++) { 589 for (i = 0; i < npevs && ret >= 0; i++)
516 fd = open_vmlinux(module); 590 ret = show_available_vars_at(dinfo, &pevs[i], max_vls, _filter,
517 if (fd < 0) {
518 pr_warning("Failed to open debug information file.\n");
519 ret = fd;
520 break;
521 }
522 ret = show_available_vars_at(fd, &pevs[i], max_vls, _filter,
523 externs); 591 externs);
524 } 592
593 debuginfo__delete(dinfo);
525 return ret; 594 return ret;
526} 595}
527 596
@@ -990,7 +1059,7 @@ bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
990 1059
991/* Parse probe_events event into struct probe_point */ 1060/* Parse probe_events event into struct probe_point */
992static int parse_probe_trace_command(const char *cmd, 1061static int parse_probe_trace_command(const char *cmd,
993 struct probe_trace_event *tev) 1062 struct probe_trace_event *tev)
994{ 1063{
995 struct probe_trace_point *tp = &tev->point; 1064 struct probe_trace_point *tp = &tev->point;
996 char pr; 1065 char pr;
@@ -1023,8 +1092,14 @@ static int parse_probe_trace_command(const char *cmd,
1023 1092
1024 tp->retprobe = (pr == 'r'); 1093 tp->retprobe = (pr == 'r');
1025 1094
1026 /* Scan function name and offset */ 1095 /* Scan module name(if there), function name and offset */
1027 ret = sscanf(argv[1], "%a[^+]+%lu", (float *)(void *)&tp->symbol, 1096 p = strchr(argv[1], ':');
1097 if (p) {
1098 tp->module = strndup(argv[1], p - argv[1]);
1099 p++;
1100 } else
1101 p = argv[1];
1102 ret = sscanf(p, "%a[^+]+%lu", (float *)(void *)&tp->symbol,
1028 &tp->offset); 1103 &tp->offset);
1029 if (ret == 1) 1104 if (ret == 1)
1030 tp->offset = 0; 1105 tp->offset = 0;
@@ -1269,9 +1344,10 @@ char *synthesize_probe_trace_command(struct probe_trace_event *tev)
1269 if (buf == NULL) 1344 if (buf == NULL)
1270 return NULL; 1345 return NULL;
1271 1346
1272 len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s+%lu", 1347 len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s%s%s+%lu",
1273 tp->retprobe ? 'r' : 'p', 1348 tp->retprobe ? 'r' : 'p',
1274 tev->group, tev->event, 1349 tev->group, tev->event,
1350 tp->module ?: "", tp->module ? ":" : "",
1275 tp->symbol, tp->offset); 1351 tp->symbol, tp->offset);
1276 if (len <= 0) 1352 if (len <= 0)
1277 goto error; 1353 goto error;
@@ -1378,6 +1454,8 @@ static void clear_probe_trace_event(struct probe_trace_event *tev)
1378 free(tev->group); 1454 free(tev->group);
1379 if (tev->point.symbol) 1455 if (tev->point.symbol)
1380 free(tev->point.symbol); 1456 free(tev->point.symbol);
1457 if (tev->point.module)
1458 free(tev->point.module);
1381 for (i = 0; i < tev->nargs; i++) { 1459 for (i = 0; i < tev->nargs; i++) {
1382 if (tev->args[i].name) 1460 if (tev->args[i].name)
1383 free(tev->args[i].name); 1461 free(tev->args[i].name);
@@ -1729,7 +1807,7 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
1729 /* Convert perf_probe_event with debuginfo */ 1807 /* Convert perf_probe_event with debuginfo */
1730 ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, module); 1808 ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, module);
1731 if (ret != 0) 1809 if (ret != 0)
1732 return ret; 1810 return ret; /* Found in debuginfo or got an error */
1733 1811
1734 /* Allocate trace event buffer */ 1812 /* Allocate trace event buffer */
1735 tev = *tevs = zalloc(sizeof(struct probe_trace_event)); 1813 tev = *tevs = zalloc(sizeof(struct probe_trace_event));
@@ -1742,6 +1820,11 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
1742 ret = -ENOMEM; 1820 ret = -ENOMEM;
1743 goto error; 1821 goto error;
1744 } 1822 }
1823 tev->point.module = strdup(module);
1824 if (tev->point.module == NULL) {
1825 ret = -ENOMEM;
1826 goto error;
1827 }
1745 tev->point.offset = pev->point.offset; 1828 tev->point.offset = pev->point.offset;
1746 tev->point.retprobe = pev->point.retprobe; 1829 tev->point.retprobe = pev->point.retprobe;
1747 tev->nargs = pev->nargs; 1830 tev->nargs = pev->nargs;
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 3434fc9d79d5..a7dee835f49c 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -10,6 +10,7 @@ extern bool probe_event_dry_run;
10/* kprobe-tracer tracing point */ 10/* kprobe-tracer tracing point */
11struct probe_trace_point { 11struct probe_trace_point {
12 char *symbol; /* Base symbol */ 12 char *symbol; /* Base symbol */
13 char *module; /* Module name */
13 unsigned long offset; /* Offset from symbol */ 14 unsigned long offset; /* Offset from symbol */
14 bool retprobe; /* Return probe flag */ 15 bool retprobe; /* Return probe flag */
15}; 16};
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 3b9d0b800d5c..3e44a3e36519 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -43,21 +43,6 @@
43/* Kprobe tracer basic type is up to u64 */ 43/* Kprobe tracer basic type is up to u64 */
44#define MAX_BASIC_TYPE_BITS 64 44#define MAX_BASIC_TYPE_BITS 64
45 45
46/*
47 * Compare the tail of two strings.
48 * Return 0 if whole of either string is same as another's tail part.
49 */
50static int strtailcmp(const char *s1, const char *s2)
51{
52 int i1 = strlen(s1);
53 int i2 = strlen(s2);
54 while (--i1 >= 0 && --i2 >= 0) {
55 if (s1[i1] != s2[i2])
56 return s1[i1] - s2[i2];
57 }
58 return 0;
59}
60
61/* Line number list operations */ 46/* Line number list operations */
62 47
63/* Add a line to line number list */ 48/* Add a line to line number list */
@@ -131,29 +116,37 @@ static const Dwfl_Callbacks offline_callbacks = {
131}; 116};
132 117
133/* Get a Dwarf from offline image */ 118/* Get a Dwarf from offline image */
134static Dwarf *dwfl_init_offline_dwarf(int fd, Dwfl **dwflp, Dwarf_Addr *bias) 119static int debuginfo__init_offline_dwarf(struct debuginfo *self,
120 const char *path)
135{ 121{
136 Dwfl_Module *mod; 122 Dwfl_Module *mod;
137 Dwarf *dbg = NULL; 123 int fd;
138 124
139 if (!dwflp) 125 fd = open(path, O_RDONLY);
140 return NULL; 126 if (fd < 0)
127 return fd;
141 128
142 *dwflp = dwfl_begin(&offline_callbacks); 129 self->dwfl = dwfl_begin(&offline_callbacks);
143 if (!*dwflp) 130 if (!self->dwfl)
144 return NULL; 131 goto error;
145 132
146 mod = dwfl_report_offline(*dwflp, "", "", fd); 133 mod = dwfl_report_offline(self->dwfl, "", "", fd);
147 if (!mod) 134 if (!mod)
148 goto error; 135 goto error;
149 136
150 dbg = dwfl_module_getdwarf(mod, bias); 137 self->dbg = dwfl_module_getdwarf(mod, &self->bias);
151 if (!dbg) { 138 if (!self->dbg)
139 goto error;
140
141 return 0;
152error: 142error:
153 dwfl_end(*dwflp); 143 if (self->dwfl)
154 *dwflp = NULL; 144 dwfl_end(self->dwfl);
155 } 145 else
156 return dbg; 146 close(fd);
147 memset(self, 0, sizeof(*self));
148
149 return -ENOENT;
157} 150}
158 151
159#if _ELFUTILS_PREREQ(0, 148) 152#if _ELFUTILS_PREREQ(0, 148)
@@ -189,597 +182,81 @@ static const Dwfl_Callbacks kernel_callbacks = {
189}; 182};
190 183
191/* Get a Dwarf from live kernel image */ 184/* Get a Dwarf from live kernel image */
192static Dwarf *dwfl_init_live_kernel_dwarf(Dwarf_Addr addr, Dwfl **dwflp, 185static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
193 Dwarf_Addr *bias) 186 Dwarf_Addr addr)
194{ 187{
195 Dwarf *dbg; 188 self->dwfl = dwfl_begin(&kernel_callbacks);
196 189 if (!self->dwfl)
197 if (!dwflp) 190 return -EINVAL;
198 return NULL;
199
200 *dwflp = dwfl_begin(&kernel_callbacks);
201 if (!*dwflp)
202 return NULL;
203 191
204 /* Load the kernel dwarves: Don't care the result here */ 192 /* Load the kernel dwarves: Don't care the result here */
205 dwfl_linux_kernel_report_kernel(*dwflp); 193 dwfl_linux_kernel_report_kernel(self->dwfl);
206 dwfl_linux_kernel_report_modules(*dwflp); 194 dwfl_linux_kernel_report_modules(self->dwfl);
207 195
208 dbg = dwfl_addrdwarf(*dwflp, addr, bias); 196 self->dbg = dwfl_addrdwarf(self->dwfl, addr, &self->bias);
209 /* Here, check whether we could get a real dwarf */ 197 /* Here, check whether we could get a real dwarf */
210 if (!dbg) { 198 if (!self->dbg) {
211 pr_debug("Failed to find kernel dwarf at %lx\n", 199 pr_debug("Failed to find kernel dwarf at %lx\n",
212 (unsigned long)addr); 200 (unsigned long)addr);
213 dwfl_end(*dwflp); 201 dwfl_end(self->dwfl);
214 *dwflp = NULL; 202 memset(self, 0, sizeof(*self));
203 return -ENOENT;
215 } 204 }
216 return dbg; 205
206 return 0;
217} 207}
218#else 208#else
219/* With older elfutils, this just support kernel module... */ 209/* With older elfutils, this just support kernel module... */
220static Dwarf *dwfl_init_live_kernel_dwarf(Dwarf_Addr addr __used, Dwfl **dwflp, 210static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
221 Dwarf_Addr *bias) 211 Dwarf_Addr addr __used)
222{ 212{
223 int fd;
224 const char *path = kernel_get_module_path("kernel"); 213 const char *path = kernel_get_module_path("kernel");
225 214
226 if (!path) { 215 if (!path) {
227 pr_err("Failed to find vmlinux path\n"); 216 pr_err("Failed to find vmlinux path\n");
228 return NULL; 217 return -ENOENT;
229 } 218 }
230 219
231 pr_debug2("Use file %s for debuginfo\n", path); 220 pr_debug2("Use file %s for debuginfo\n", path);
232 fd = open(path, O_RDONLY); 221 return debuginfo__init_offline_dwarf(self, path);
233 if (fd < 0)
234 return NULL;
235
236 return dwfl_init_offline_dwarf(fd, dwflp, bias);
237} 222}
238#endif 223#endif
239 224
240/* Dwarf wrappers */ 225struct debuginfo *debuginfo__new(const char *path)
241
242/* Find the realpath of the target file. */
243static const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
244{
245 Dwarf_Files *files;
246 size_t nfiles, i;
247 const char *src = NULL;
248 int ret;
249
250 if (!fname)
251 return NULL;
252
253 ret = dwarf_getsrcfiles(cu_die, &files, &nfiles);
254 if (ret != 0)
255 return NULL;
256
257 for (i = 0; i < nfiles; i++) {
258 src = dwarf_filesrc(files, i, NULL, NULL);
259 if (strtailcmp(src, fname) == 0)
260 break;
261 }
262 if (i == nfiles)
263 return NULL;
264 return src;
265}
266
267/* Get DW_AT_comp_dir (should be NULL with older gcc) */
268static const char *cu_get_comp_dir(Dwarf_Die *cu_die)
269{
270 Dwarf_Attribute attr;
271 if (dwarf_attr(cu_die, DW_AT_comp_dir, &attr) == NULL)
272 return NULL;
273 return dwarf_formstring(&attr);
274}
275
276/* Get a line number and file name for given address */
277static int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
278 const char **fname, int *lineno)
279{
280 Dwarf_Line *line;
281 Dwarf_Addr laddr;
282
283 line = dwarf_getsrc_die(cudie, (Dwarf_Addr)addr);
284 if (line && dwarf_lineaddr(line, &laddr) == 0 &&
285 addr == (unsigned long)laddr && dwarf_lineno(line, lineno) == 0) {
286 *fname = dwarf_linesrc(line, NULL, NULL);
287 if (!*fname)
288 /* line number is useless without filename */
289 *lineno = 0;
290 }
291
292 return *lineno ?: -ENOENT;
293}
294
295/* Compare diename and tname */
296static bool die_compare_name(Dwarf_Die *dw_die, const char *tname)
297{
298 const char *name;
299 name = dwarf_diename(dw_die);
300 return name ? (strcmp(tname, name) == 0) : false;
301}
302
303/* Get callsite line number of inline-function instance */
304static int die_get_call_lineno(Dwarf_Die *in_die)
305{
306 Dwarf_Attribute attr;
307 Dwarf_Word ret;
308
309 if (!dwarf_attr(in_die, DW_AT_call_line, &attr))
310 return -ENOENT;
311
312 dwarf_formudata(&attr, &ret);
313 return (int)ret;
314}
315
316/* Get type die */
317static Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
318{
319 Dwarf_Attribute attr;
320
321 if (dwarf_attr_integrate(vr_die, DW_AT_type, &attr) &&
322 dwarf_formref_die(&attr, die_mem))
323 return die_mem;
324 else
325 return NULL;
326}
327
328/* Get a type die, but skip qualifiers */
329static Dwarf_Die *__die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
330{
331 int tag;
332
333 do {
334 vr_die = die_get_type(vr_die, die_mem);
335 if (!vr_die)
336 break;
337 tag = dwarf_tag(vr_die);
338 } while (tag == DW_TAG_const_type ||
339 tag == DW_TAG_restrict_type ||
340 tag == DW_TAG_volatile_type ||
341 tag == DW_TAG_shared_type);
342
343 return vr_die;
344}
345
346/* Get a type die, but skip qualifiers and typedef */
347static Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
348{
349 do {
350 vr_die = __die_get_real_type(vr_die, die_mem);
351 } while (vr_die && dwarf_tag(vr_die) == DW_TAG_typedef);
352
353 return vr_die;
354}
355
356static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
357 Dwarf_Word *result)
358{
359 Dwarf_Attribute attr;
360
361 if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
362 dwarf_formudata(&attr, result) != 0)
363 return -ENOENT;
364
365 return 0;
366}
367
368static bool die_is_signed_type(Dwarf_Die *tp_die)
369{
370 Dwarf_Word ret;
371
372 if (die_get_attr_udata(tp_die, DW_AT_encoding, &ret))
373 return false;
374
375 return (ret == DW_ATE_signed_char || ret == DW_ATE_signed ||
376 ret == DW_ATE_signed_fixed);
377}
378
379static int die_get_byte_size(Dwarf_Die *tp_die)
380{
381 Dwarf_Word ret;
382
383 if (die_get_attr_udata(tp_die, DW_AT_byte_size, &ret))
384 return 0;
385
386 return (int)ret;
387}
388
389static int die_get_bit_size(Dwarf_Die *tp_die)
390{
391 Dwarf_Word ret;
392
393 if (die_get_attr_udata(tp_die, DW_AT_bit_size, &ret))
394 return 0;
395
396 return (int)ret;
397}
398
399static int die_get_bit_offset(Dwarf_Die *tp_die)
400{
401 Dwarf_Word ret;
402
403 if (die_get_attr_udata(tp_die, DW_AT_bit_offset, &ret))
404 return 0;
405
406 return (int)ret;
407}
408
409/* Get data_member_location offset */
410static int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs)
411{
412 Dwarf_Attribute attr;
413 Dwarf_Op *expr;
414 size_t nexpr;
415 int ret;
416
417 if (dwarf_attr(mb_die, DW_AT_data_member_location, &attr) == NULL)
418 return -ENOENT;
419
420 if (dwarf_formudata(&attr, offs) != 0) {
421 /* DW_AT_data_member_location should be DW_OP_plus_uconst */
422 ret = dwarf_getlocation(&attr, &expr, &nexpr);
423 if (ret < 0 || nexpr == 0)
424 return -ENOENT;
425
426 if (expr[0].atom != DW_OP_plus_uconst || nexpr != 1) {
427 pr_debug("Unable to get offset:Unexpected OP %x (%zd)\n",
428 expr[0].atom, nexpr);
429 return -ENOTSUP;
430 }
431 *offs = (Dwarf_Word)expr[0].number;
432 }
433 return 0;
434}
435
436/* Return values for die_find callbacks */
437enum {
438 DIE_FIND_CB_FOUND = 0, /* End of Search */
439 DIE_FIND_CB_CHILD = 1, /* Search only children */
440 DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
441 DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
442};
443
444/* Search a child die */
445static Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
446 int (*callback)(Dwarf_Die *, void *),
447 void *data, Dwarf_Die *die_mem)
448{ 226{
449 Dwarf_Die child_die; 227 struct debuginfo *self = zalloc(sizeof(struct debuginfo));
450 int ret; 228 if (!self)
451
452 ret = dwarf_child(rt_die, die_mem);
453 if (ret != 0)
454 return NULL; 229 return NULL;
455 230
456 do { 231 if (debuginfo__init_offline_dwarf(self, path) < 0) {
457 ret = callback(die_mem, data); 232 free(self);
458 if (ret == DIE_FIND_CB_FOUND) 233 self = NULL;
459 return die_mem;
460
461 if ((ret & DIE_FIND_CB_CHILD) &&
462 die_find_child(die_mem, callback, data, &child_die)) {
463 memcpy(die_mem, &child_die, sizeof(Dwarf_Die));
464 return die_mem;
465 }
466 } while ((ret & DIE_FIND_CB_SIBLING) &&
467 dwarf_siblingof(die_mem, die_mem) == 0);
468
469 return NULL;
470}
471
472struct __addr_die_search_param {
473 Dwarf_Addr addr;
474 Dwarf_Die *die_mem;
475};
476
477static int __die_search_func_cb(Dwarf_Die *fn_die, void *data)
478{
479 struct __addr_die_search_param *ad = data;
480
481 if (dwarf_tag(fn_die) == DW_TAG_subprogram &&
482 dwarf_haspc(fn_die, ad->addr)) {
483 memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die));
484 return DWARF_CB_ABORT;
485 } 234 }
486 return DWARF_CB_OK;
487}
488
489/* Search a real subprogram including this line, */
490static Dwarf_Die *die_find_real_subprogram(Dwarf_Die *cu_die, Dwarf_Addr addr,
491 Dwarf_Die *die_mem)
492{
493 struct __addr_die_search_param ad;
494 ad.addr = addr;
495 ad.die_mem = die_mem;
496 /* dwarf_getscopes can't find subprogram. */
497 if (!dwarf_getfuncs(cu_die, __die_search_func_cb, &ad, 0))
498 return NULL;
499 else
500 return die_mem;
501}
502
503/* die_find callback for inline function search */
504static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data)
505{
506 Dwarf_Addr *addr = data;
507
508 if (dwarf_tag(die_mem) == DW_TAG_inlined_subroutine &&
509 dwarf_haspc(die_mem, *addr))
510 return DIE_FIND_CB_FOUND;
511 235
512 return DIE_FIND_CB_CONTINUE; 236 return self;
513} 237}
514 238
515/* Similar to dwarf_getfuncs, but returns inlined_subroutine if exists. */ 239struct debuginfo *debuginfo__new_online_kernel(unsigned long addr)
516static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
517 Dwarf_Die *die_mem)
518{ 240{
519 Dwarf_Die tmp_die; 241 struct debuginfo *self = zalloc(sizeof(struct debuginfo));
520 242 if (!self)
521 sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die);
522 if (!sp_die)
523 return NULL; 243 return NULL;
524 244
525 /* Inlined function could be recursive. Trace it until fail */ 245 if (debuginfo__init_online_kernel_dwarf(self, (Dwarf_Addr)addr) < 0) {
526 while (sp_die) { 246 free(self);
527 memcpy(die_mem, sp_die, sizeof(Dwarf_Die)); 247 self = NULL;
528 sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr,
529 &tmp_die);
530 }
531
532 return die_mem;
533}
534
535/* Walker on lines (Note: line number will not be sorted) */
536typedef int (* line_walk_handler_t) (const char *fname, int lineno,
537 Dwarf_Addr addr, void *data);
538
539struct __line_walk_param {
540 const char *fname;
541 line_walk_handler_t handler;
542 void *data;
543 int retval;
544};
545
546static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data)
547{
548 struct __line_walk_param *lw = data;
549 Dwarf_Addr addr;
550 int lineno;
551
552 if (dwarf_tag(in_die) == DW_TAG_inlined_subroutine) {
553 lineno = die_get_call_lineno(in_die);
554 if (lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
555 lw->retval = lw->handler(lw->fname, lineno, addr,
556 lw->data);
557 if (lw->retval != 0)
558 return DIE_FIND_CB_FOUND;
559 }
560 }
561 return DIE_FIND_CB_SIBLING;
562}
563
564/* Walk on lines of blocks included in given DIE */
565static int __die_walk_funclines(Dwarf_Die *sp_die,
566 line_walk_handler_t handler, void *data)
567{
568 struct __line_walk_param lw = {
569 .handler = handler,
570 .data = data,
571 .retval = 0,
572 };
573 Dwarf_Die die_mem;
574 Dwarf_Addr addr;
575 int lineno;
576
577 /* Handle function declaration line */
578 lw.fname = dwarf_decl_file(sp_die);
579 if (lw.fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
580 dwarf_entrypc(sp_die, &addr) == 0) {
581 lw.retval = handler(lw.fname, lineno, addr, data);
582 if (lw.retval != 0)
583 goto done;
584 }
585 die_find_child(sp_die, __die_walk_funclines_cb, &lw, &die_mem);
586done:
587 return lw.retval;
588}
589
590static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
591{
592 struct __line_walk_param *lw = data;
593
594 lw->retval = __die_walk_funclines(sp_die, lw->handler, lw->data);
595 if (lw->retval != 0)
596 return DWARF_CB_ABORT;
597
598 return DWARF_CB_OK;
599}
600
601/*
602 * Walk on lines inside given PDIE. If the PDIE is subprogram, walk only on
603 * the lines inside the subprogram, otherwise PDIE must be a CU DIE.
604 */
605static int die_walk_lines(Dwarf_Die *pdie, line_walk_handler_t handler,
606 void *data)
607{
608 Dwarf_Lines *lines;
609 Dwarf_Line *line;
610 Dwarf_Addr addr;
611 const char *fname;
612 int lineno, ret = 0;
613 Dwarf_Die die_mem, *cu_die;
614 size_t nlines, i;
615
616 /* Get the CU die */
617 if (dwarf_tag(pdie) == DW_TAG_subprogram)
618 cu_die = dwarf_diecu(pdie, &die_mem, NULL, NULL);
619 else
620 cu_die = pdie;
621 if (!cu_die) {
622 pr_debug2("Failed to get CU from subprogram\n");
623 return -EINVAL;
624 }
625
626 /* Get lines list in the CU */
627 if (dwarf_getsrclines(cu_die, &lines, &nlines) != 0) {
628 pr_debug2("Failed to get source lines on this CU.\n");
629 return -ENOENT;
630 }
631 pr_debug2("Get %zd lines from this CU\n", nlines);
632
633 /* Walk on the lines on lines list */
634 for (i = 0; i < nlines; i++) {
635 line = dwarf_onesrcline(lines, i);
636 if (line == NULL ||
637 dwarf_lineno(line, &lineno) != 0 ||
638 dwarf_lineaddr(line, &addr) != 0) {
639 pr_debug2("Failed to get line info. "
640 "Possible error in debuginfo.\n");
641 continue;
642 }
643 /* Filter lines based on address */
644 if (pdie != cu_die)
645 /*
646 * Address filtering
647 * The line is included in given function, and
648 * no inline block includes it.
649 */
650 if (!dwarf_haspc(pdie, addr) ||
651 die_find_inlinefunc(pdie, addr, &die_mem))
652 continue;
653 /* Get source line */
654 fname = dwarf_linesrc(line, NULL, NULL);
655
656 ret = handler(fname, lineno, addr, data);
657 if (ret != 0)
658 return ret;
659 }
660
661 /*
662 * Dwarf lines doesn't include function declarations and inlined
663 * subroutines. We have to check functions list or given function.
664 */
665 if (pdie != cu_die)
666 ret = __die_walk_funclines(pdie, handler, data);
667 else {
668 struct __line_walk_param param = {
669 .handler = handler,
670 .data = data,
671 .retval = 0,
672 };
673 dwarf_getfuncs(cu_die, __die_walk_culines_cb, &param, 0);
674 ret = param.retval;
675 } 248 }
676 249
677 return ret; 250 return self;
678}
679
680struct __find_variable_param {
681 const char *name;
682 Dwarf_Addr addr;
683};
684
685static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
686{
687 struct __find_variable_param *fvp = data;
688 int tag;
689
690 tag = dwarf_tag(die_mem);
691 if ((tag == DW_TAG_formal_parameter ||
692 tag == DW_TAG_variable) &&
693 die_compare_name(die_mem, fvp->name))
694 return DIE_FIND_CB_FOUND;
695
696 if (dwarf_haspc(die_mem, fvp->addr))
697 return DIE_FIND_CB_CONTINUE;
698 else
699 return DIE_FIND_CB_SIBLING;
700}
701
702/* Find a variable called 'name' at given address */
703static Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
704 Dwarf_Addr addr, Dwarf_Die *die_mem)
705{
706 struct __find_variable_param fvp = { .name = name, .addr = addr};
707
708 return die_find_child(sp_die, __die_find_variable_cb, (void *)&fvp,
709 die_mem);
710}
711
712static int __die_find_member_cb(Dwarf_Die *die_mem, void *data)
713{
714 const char *name = data;
715
716 if ((dwarf_tag(die_mem) == DW_TAG_member) &&
717 die_compare_name(die_mem, name))
718 return DIE_FIND_CB_FOUND;
719
720 return DIE_FIND_CB_SIBLING;
721}
722
723/* Find a member called 'name' */
724static Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
725 Dwarf_Die *die_mem)
726{
727 return die_find_child(st_die, __die_find_member_cb, (void *)name,
728 die_mem);
729}
730
731/* Get the name of given variable DIE */
732static int die_get_typename(Dwarf_Die *vr_die, char *buf, int len)
733{
734 Dwarf_Die type;
735 int tag, ret, ret2;
736 const char *tmp = "";
737
738 if (__die_get_real_type(vr_die, &type) == NULL)
739 return -ENOENT;
740
741 tag = dwarf_tag(&type);
742 if (tag == DW_TAG_array_type || tag == DW_TAG_pointer_type)
743 tmp = "*";
744 else if (tag == DW_TAG_subroutine_type) {
745 /* Function pointer */
746 ret = snprintf(buf, len, "(function_type)");
747 return (ret >= len) ? -E2BIG : ret;
748 } else {
749 if (!dwarf_diename(&type))
750 return -ENOENT;
751 if (tag == DW_TAG_union_type)
752 tmp = "union ";
753 else if (tag == DW_TAG_structure_type)
754 tmp = "struct ";
755 /* Write a base name */
756 ret = snprintf(buf, len, "%s%s", tmp, dwarf_diename(&type));
757 return (ret >= len) ? -E2BIG : ret;
758 }
759 ret = die_get_typename(&type, buf, len);
760 if (ret > 0) {
761 ret2 = snprintf(buf + ret, len - ret, "%s", tmp);
762 ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
763 }
764 return ret;
765} 251}
766 252
767/* Get the name and type of given variable DIE, stored as "type\tname" */ 253void debuginfo__delete(struct debuginfo *self)
768static int die_get_varname(Dwarf_Die *vr_die, char *buf, int len)
769{ 254{
770 int ret, ret2; 255 if (self) {
771 256 if (self->dwfl)
772 ret = die_get_typename(vr_die, buf, len); 257 dwfl_end(self->dwfl);
773 if (ret < 0) { 258 free(self);
774 pr_debug("Failed to get type, make it unknown.\n");
775 ret = snprintf(buf, len, "(unknown_type)");
776 } 259 }
777 if (ret > 0) {
778 ret2 = snprintf(buf + ret, len - ret, "\t%s",
779 dwarf_diename(vr_die));
780 ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
781 }
782 return ret;
783} 260}
784 261
785/* 262/*
@@ -897,6 +374,7 @@ static int convert_variable_type(Dwarf_Die *vr_die,
897 struct probe_trace_arg_ref **ref_ptr = &tvar->ref; 374 struct probe_trace_arg_ref **ref_ptr = &tvar->ref;
898 Dwarf_Die type; 375 Dwarf_Die type;
899 char buf[16]; 376 char buf[16];
377 int bsize, boffs, total;
900 int ret; 378 int ret;
901 379
902 /* TODO: check all types */ 380 /* TODO: check all types */
@@ -906,11 +384,15 @@ static int convert_variable_type(Dwarf_Die *vr_die,
906 return (tvar->type == NULL) ? -ENOMEM : 0; 384 return (tvar->type == NULL) ? -ENOMEM : 0;
907 } 385 }
908 386
909 if (die_get_bit_size(vr_die) != 0) { 387 bsize = dwarf_bitsize(vr_die);
388 if (bsize > 0) {
910 /* This is a bitfield */ 389 /* This is a bitfield */
911 ret = snprintf(buf, 16, "b%d@%d/%zd", die_get_bit_size(vr_die), 390 boffs = dwarf_bitoffset(vr_die);
912 die_get_bit_offset(vr_die), 391 total = dwarf_bytesize(vr_die);
913 BYTES_TO_BITS(die_get_byte_size(vr_die))); 392 if (boffs < 0 || total < 0)
393 return -ENOENT;
394 ret = snprintf(buf, 16, "b%d@%d/%zd", bsize, boffs,
395 BYTES_TO_BITS(total));
914 goto formatted; 396 goto formatted;
915 } 397 }
916 398
@@ -958,10 +440,11 @@ static int convert_variable_type(Dwarf_Die *vr_die,
958 return (tvar->type == NULL) ? -ENOMEM : 0; 440 return (tvar->type == NULL) ? -ENOMEM : 0;
959 } 441 }
960 442
961 ret = BYTES_TO_BITS(die_get_byte_size(&type)); 443 ret = dwarf_bytesize(&type);
962 if (!ret) 444 if (ret <= 0)
963 /* No size ... try to use default type */ 445 /* No size ... try to use default type */
964 return 0; 446 return 0;
447 ret = BYTES_TO_BITS(ret);
965 448
966 /* Check the bitwidth */ 449 /* Check the bitwidth */
967 if (ret > MAX_BASIC_TYPE_BITS) { 450 if (ret > MAX_BASIC_TYPE_BITS) {
@@ -1025,7 +508,7 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
1025 else 508 else
1026 *ref_ptr = ref; 509 *ref_ptr = ref;
1027 } 510 }
1028 ref->offset += die_get_byte_size(&type) * field->index; 511 ref->offset += dwarf_bytesize(&type) * field->index;
1029 if (!field->next) 512 if (!field->next)
1030 /* Save vr_die for converting types */ 513 /* Save vr_die for converting types */
1031 memcpy(die_mem, vr_die, sizeof(*die_mem)); 514 memcpy(die_mem, vr_die, sizeof(*die_mem));
@@ -1245,8 +728,7 @@ static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
1245 728
1246 /* If no real subprogram, find a real one */ 729 /* If no real subprogram, find a real one */
1247 if (!sp_die || dwarf_tag(sp_die) != DW_TAG_subprogram) { 730 if (!sp_die || dwarf_tag(sp_die) != DW_TAG_subprogram) {
1248 sp_die = die_find_real_subprogram(&pf->cu_die, 731 sp_die = die_find_realfunc(&pf->cu_die, pf->addr, &die_mem);
1249 pf->addr, &die_mem);
1250 if (!sp_die) { 732 if (!sp_die) {
1251 pr_warning("Failed to find probe point in any " 733 pr_warning("Failed to find probe point in any "
1252 "functions.\n"); 734 "functions.\n");
@@ -1504,28 +986,18 @@ static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data)
1504} 986}
1505 987
1506/* Find probe points from debuginfo */ 988/* Find probe points from debuginfo */
1507static int find_probes(int fd, struct probe_finder *pf) 989static int debuginfo__find_probes(struct debuginfo *self,
990 struct probe_finder *pf)
1508{ 991{
1509 struct perf_probe_point *pp = &pf->pev->point; 992 struct perf_probe_point *pp = &pf->pev->point;
1510 Dwarf_Off off, noff; 993 Dwarf_Off off, noff;
1511 size_t cuhl; 994 size_t cuhl;
1512 Dwarf_Die *diep; 995 Dwarf_Die *diep;
1513 Dwarf *dbg = NULL;
1514 Dwfl *dwfl;
1515 Dwarf_Addr bias; /* Currently ignored */
1516 int ret = 0; 996 int ret = 0;
1517 997
1518 dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
1519 if (!dbg) {
1520 pr_warning("No debug information found in the vmlinux - "
1521 "please rebuild with CONFIG_DEBUG_INFO=y.\n");
1522 close(fd); /* Without dwfl_end(), fd isn't closed. */
1523 return -EBADF;
1524 }
1525
1526#if _ELFUTILS_PREREQ(0, 142) 998#if _ELFUTILS_PREREQ(0, 142)
1527 /* Get the call frame information from this dwarf */ 999 /* Get the call frame information from this dwarf */
1528 pf->cfi = dwarf_getcfi(dbg); 1000 pf->cfi = dwarf_getcfi(self->dbg);
1529#endif 1001#endif
1530 1002
1531 off = 0; 1003 off = 0;
@@ -1544,7 +1016,8 @@ static int find_probes(int fd, struct probe_finder *pf)
1544 .data = pf, 1016 .data = pf,
1545 }; 1017 };
1546 1018
1547 dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); 1019 dwarf_getpubnames(self->dbg, pubname_search_cb,
1020 &pubname_param, 0);
1548 if (pubname_param.found) { 1021 if (pubname_param.found) {
1549 ret = probe_point_search_cb(&pf->sp_die, &probe_param); 1022 ret = probe_point_search_cb(&pf->sp_die, &probe_param);
1550 if (ret) 1023 if (ret)
@@ -1553,9 +1026,9 @@ static int find_probes(int fd, struct probe_finder *pf)
1553 } 1026 }
1554 1027
1555 /* Loop on CUs (Compilation Unit) */ 1028 /* Loop on CUs (Compilation Unit) */
1556 while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL)) { 1029 while (!dwarf_nextcu(self->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
1557 /* Get the DIE(Debugging Information Entry) of this CU */ 1030 /* Get the DIE(Debugging Information Entry) of this CU */
1558 diep = dwarf_offdie(dbg, off + cuhl, &pf->cu_die); 1031 diep = dwarf_offdie(self->dbg, off + cuhl, &pf->cu_die);
1559 if (!diep) 1032 if (!diep)
1560 continue; 1033 continue;
1561 1034
@@ -1582,8 +1055,6 @@ static int find_probes(int fd, struct probe_finder *pf)
1582 1055
1583found: 1056found:
1584 line_list__free(&pf->lcache); 1057 line_list__free(&pf->lcache);
1585 if (dwfl)
1586 dwfl_end(dwfl);
1587 1058
1588 return ret; 1059 return ret;
1589} 1060}
@@ -1629,8 +1100,9 @@ static int add_probe_trace_event(Dwarf_Die *sp_die, struct probe_finder *pf)
1629} 1100}
1630 1101
1631/* Find probe_trace_events specified by perf_probe_event from debuginfo */ 1102/* Find probe_trace_events specified by perf_probe_event from debuginfo */
1632int find_probe_trace_events(int fd, struct perf_probe_event *pev, 1103int debuginfo__find_trace_events(struct debuginfo *self,
1633 struct probe_trace_event **tevs, int max_tevs) 1104 struct perf_probe_event *pev,
1105 struct probe_trace_event **tevs, int max_tevs)
1634{ 1106{
1635 struct trace_event_finder tf = { 1107 struct trace_event_finder tf = {
1636 .pf = {.pev = pev, .callback = add_probe_trace_event}, 1108 .pf = {.pev = pev, .callback = add_probe_trace_event},
@@ -1645,7 +1117,7 @@ int find_probe_trace_events(int fd, struct perf_probe_event *pev,
1645 tf.tevs = *tevs; 1117 tf.tevs = *tevs;
1646 tf.ntevs = 0; 1118 tf.ntevs = 0;
1647 1119
1648 ret = find_probes(fd, &tf.pf); 1120 ret = debuginfo__find_probes(self, &tf.pf);
1649 if (ret < 0) { 1121 if (ret < 0) {
1650 free(*tevs); 1122 free(*tevs);
1651 *tevs = NULL; 1123 *tevs = NULL;
@@ -1739,9 +1211,10 @@ out:
1739} 1211}
1740 1212
1741/* Find available variables at given probe point */ 1213/* Find available variables at given probe point */
1742int find_available_vars_at(int fd, struct perf_probe_event *pev, 1214int debuginfo__find_available_vars_at(struct debuginfo *self,
1743 struct variable_list **vls, int max_vls, 1215 struct perf_probe_event *pev,
1744 bool externs) 1216 struct variable_list **vls,
1217 int max_vls, bool externs)
1745{ 1218{
1746 struct available_var_finder af = { 1219 struct available_var_finder af = {
1747 .pf = {.pev = pev, .callback = add_available_vars}, 1220 .pf = {.pev = pev, .callback = add_available_vars},
@@ -1756,7 +1229,7 @@ int find_available_vars_at(int fd, struct perf_probe_event *pev,
1756 af.vls = *vls; 1229 af.vls = *vls;
1757 af.nvls = 0; 1230 af.nvls = 0;
1758 1231
1759 ret = find_probes(fd, &af.pf); 1232 ret = debuginfo__find_probes(self, &af.pf);
1760 if (ret < 0) { 1233 if (ret < 0) {
1761 /* Free vlist for error */ 1234 /* Free vlist for error */
1762 while (af.nvls--) { 1235 while (af.nvls--) {
@@ -1774,28 +1247,19 @@ int find_available_vars_at(int fd, struct perf_probe_event *pev,
1774} 1247}
1775 1248
1776/* Reverse search */ 1249/* Reverse search */
1777int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt) 1250int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
1251 struct perf_probe_point *ppt)
1778{ 1252{
1779 Dwarf_Die cudie, spdie, indie; 1253 Dwarf_Die cudie, spdie, indie;
1780 Dwarf *dbg = NULL; 1254 Dwarf_Addr _addr, baseaddr;
1781 Dwfl *dwfl = NULL;
1782 Dwarf_Addr _addr, baseaddr, bias = 0;
1783 const char *fname = NULL, *func = NULL, *tmp; 1255 const char *fname = NULL, *func = NULL, *tmp;
1784 int baseline = 0, lineno = 0, ret = 0; 1256 int baseline = 0, lineno = 0, ret = 0;
1785 1257
1786 /* Open the live linux kernel */
1787 dbg = dwfl_init_live_kernel_dwarf(addr, &dwfl, &bias);
1788 if (!dbg) {
1789 pr_warning("No debug information found in the vmlinux - "
1790 "please rebuild with CONFIG_DEBUG_INFO=y.\n");
1791 ret = -EINVAL;
1792 goto end;
1793 }
1794
1795 /* Adjust address with bias */ 1258 /* Adjust address with bias */
1796 addr += bias; 1259 addr += self->bias;
1260
1797 /* Find cu die */ 1261 /* Find cu die */
1798 if (!dwarf_addrdie(dbg, (Dwarf_Addr)addr - bias, &cudie)) { 1262 if (!dwarf_addrdie(self->dbg, (Dwarf_Addr)addr - self->bias, &cudie)) {
1799 pr_warning("Failed to find debug information for address %lx\n", 1263 pr_warning("Failed to find debug information for address %lx\n",
1800 addr); 1264 addr);
1801 ret = -EINVAL; 1265 ret = -EINVAL;
@@ -1807,7 +1271,7 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
1807 /* Don't care whether it failed or not */ 1271 /* Don't care whether it failed or not */
1808 1272
1809 /* Find a corresponding function (name, baseline and baseaddr) */ 1273 /* Find a corresponding function (name, baseline and baseaddr) */
1810 if (die_find_real_subprogram(&cudie, (Dwarf_Addr)addr, &spdie)) { 1274 if (die_find_realfunc(&cudie, (Dwarf_Addr)addr, &spdie)) {
1811 /* Get function entry information */ 1275 /* Get function entry information */
1812 tmp = dwarf_diename(&spdie); 1276 tmp = dwarf_diename(&spdie);
1813 if (!tmp || 1277 if (!tmp ||
@@ -1871,8 +1335,6 @@ post:
1871 } 1335 }
1872 } 1336 }
1873end: 1337end:
1874 if (dwfl)
1875 dwfl_end(dwfl);
1876 if (ret == 0 && (fname || func)) 1338 if (ret == 0 && (fname || func))
1877 ret = 1; /* Found a point */ 1339 ret = 1; /* Found a point */
1878 return ret; 1340 return ret;
@@ -1982,26 +1444,15 @@ static int find_line_range_by_func(struct line_finder *lf)
1982 return param.retval; 1444 return param.retval;
1983} 1445}
1984 1446
1985int find_line_range(int fd, struct line_range *lr) 1447int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
1986{ 1448{
1987 struct line_finder lf = {.lr = lr, .found = 0}; 1449 struct line_finder lf = {.lr = lr, .found = 0};
1988 int ret = 0; 1450 int ret = 0;
1989 Dwarf_Off off = 0, noff; 1451 Dwarf_Off off = 0, noff;
1990 size_t cuhl; 1452 size_t cuhl;
1991 Dwarf_Die *diep; 1453 Dwarf_Die *diep;
1992 Dwarf *dbg = NULL;
1993 Dwfl *dwfl;
1994 Dwarf_Addr bias; /* Currently ignored */
1995 const char *comp_dir; 1454 const char *comp_dir;
1996 1455
1997 dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
1998 if (!dbg) {
1999 pr_warning("No debug information found in the vmlinux - "
2000 "please rebuild with CONFIG_DEBUG_INFO=y.\n");
2001 close(fd); /* Without dwfl_end(), fd isn't closed. */
2002 return -EBADF;
2003 }
2004
2005 /* Fastpath: lookup by function name from .debug_pubnames section */ 1456 /* Fastpath: lookup by function name from .debug_pubnames section */
2006 if (lr->function) { 1457 if (lr->function) {
2007 struct pubname_callback_param pubname_param = { 1458 struct pubname_callback_param pubname_param = {
@@ -2010,7 +1461,8 @@ int find_line_range(int fd, struct line_range *lr)
2010 struct dwarf_callback_param line_range_param = { 1461 struct dwarf_callback_param line_range_param = {
2011 .data = (void *)&lf, .retval = 0}; 1462 .data = (void *)&lf, .retval = 0};
2012 1463
2013 dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); 1464 dwarf_getpubnames(self->dbg, pubname_search_cb,
1465 &pubname_param, 0);
2014 if (pubname_param.found) { 1466 if (pubname_param.found) {
2015 line_range_search_cb(&lf.sp_die, &line_range_param); 1467 line_range_search_cb(&lf.sp_die, &line_range_param);
2016 if (lf.found) 1468 if (lf.found)
@@ -2020,11 +1472,12 @@ int find_line_range(int fd, struct line_range *lr)
2020 1472
2021 /* Loop on CUs (Compilation Unit) */ 1473 /* Loop on CUs (Compilation Unit) */
2022 while (!lf.found && ret >= 0) { 1474 while (!lf.found && ret >= 0) {
2023 if (dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL) != 0) 1475 if (dwarf_nextcu(self->dbg, off, &noff, &cuhl,
1476 NULL, NULL, NULL) != 0)
2024 break; 1477 break;
2025 1478
2026 /* Get the DIE(Debugging Information Entry) of this CU */ 1479 /* Get the DIE(Debugging Information Entry) of this CU */
2027 diep = dwarf_offdie(dbg, off + cuhl, &lf.cu_die); 1480 diep = dwarf_offdie(self->dbg, off + cuhl, &lf.cu_die);
2028 if (!diep) 1481 if (!diep)
2029 continue; 1482 continue;
2030 1483
@@ -2058,7 +1511,6 @@ found:
2058 } 1511 }
2059 1512
2060 pr_debug("path: %s\n", lr->path); 1513 pr_debug("path: %s\n", lr->path);
2061 dwfl_end(dwfl);
2062 return (ret < 0) ? ret : lf.found; 1514 return (ret < 0) ? ret : lf.found;
2063} 1515}
2064 1516
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 605730a366db..c478b42a2473 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -16,27 +16,42 @@ static inline int is_c_varname(const char *name)
16} 16}
17 17
18#ifdef DWARF_SUPPORT 18#ifdef DWARF_SUPPORT
19
20#include "dwarf-aux.h"
21
22/* TODO: export debuginfo data structure even if no dwarf support */
23
24/* debug information structure */
25struct debuginfo {
26 Dwarf *dbg;
27 Dwfl *dwfl;
28 Dwarf_Addr bias;
29};
30
31extern struct debuginfo *debuginfo__new(const char *path);
32extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr);
33extern void debuginfo__delete(struct debuginfo *self);
34
19/* Find probe_trace_events specified by perf_probe_event from debuginfo */ 35/* Find probe_trace_events specified by perf_probe_event from debuginfo */
20extern int find_probe_trace_events(int fd, struct perf_probe_event *pev, 36extern int debuginfo__find_trace_events(struct debuginfo *self,
21 struct probe_trace_event **tevs, 37 struct perf_probe_event *pev,
22 int max_tevs); 38 struct probe_trace_event **tevs,
39 int max_tevs);
23 40
24/* Find a perf_probe_point from debuginfo */ 41/* Find a perf_probe_point from debuginfo */
25extern int find_perf_probe_point(unsigned long addr, 42extern int debuginfo__find_probe_point(struct debuginfo *self,
26 struct perf_probe_point *ppt); 43 unsigned long addr,
44 struct perf_probe_point *ppt);
27 45
28/* Find a line range */ 46/* Find a line range */
29extern int find_line_range(int fd, struct line_range *lr); 47extern int debuginfo__find_line_range(struct debuginfo *self,
48 struct line_range *lr);
30 49
31/* Find available variables */ 50/* Find available variables */
32extern int find_available_vars_at(int fd, struct perf_probe_event *pev, 51extern int debuginfo__find_available_vars_at(struct debuginfo *self,
33 struct variable_list **vls, int max_points, 52 struct perf_probe_event *pev,
34 bool externs); 53 struct variable_list **vls,
35 54 int max_points, bool externs);
36#include <dwarf.h>
37#include <elfutils/libdw.h>
38#include <elfutils/libdwfl.h>
39#include <elfutils/version.h>
40 55
41struct probe_finder { 56struct probe_finder {
42 struct perf_probe_event *pev; /* Target probe event */ 57 struct perf_probe_event *pev; /* Target probe event */
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index a9ac0504aabd..8e0b5a39d8a7 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -247,7 +247,7 @@ struct pyrf_cpu_map {
247static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus, 247static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
248 PyObject *args, PyObject *kwargs) 248 PyObject *args, PyObject *kwargs)
249{ 249{
250 static char *kwlist[] = { "cpustr", NULL, NULL, }; 250 static char *kwlist[] = { "cpustr", NULL };
251 char *cpustr = NULL; 251 char *cpustr = NULL;
252 252
253 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s", 253 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
@@ -316,7 +316,7 @@ struct pyrf_thread_map {
316static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads, 316static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
317 PyObject *args, PyObject *kwargs) 317 PyObject *args, PyObject *kwargs)
318{ 318{
319 static char *kwlist[] = { "pid", "tid", NULL, NULL, }; 319 static char *kwlist[] = { "pid", "tid", NULL };
320 int pid = -1, tid = -1; 320 int pid = -1, tid = -1;
321 321
322 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", 322 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
@@ -418,7 +418,9 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
418 "wakeup_events", 418 "wakeup_events",
419 "bp_type", 419 "bp_type",
420 "bp_addr", 420 "bp_addr",
421 "bp_len", NULL, NULL, }; 421 "bp_len",
422 NULL
423 };
422 u64 sample_period = 0; 424 u64 sample_period = 0;
423 u32 disabled = 0, 425 u32 disabled = 0,
424 inherit = 0, 426 inherit = 0,
@@ -499,7 +501,7 @@ static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
499 struct thread_map *threads = NULL; 501 struct thread_map *threads = NULL;
500 PyObject *pcpus = NULL, *pthreads = NULL; 502 PyObject *pcpus = NULL, *pthreads = NULL;
501 int group = 0, inherit = 0; 503 int group = 0, inherit = 0;
502 static char *kwlist[] = {"cpus", "threads", "group", "inherit", NULL, NULL}; 504 static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
503 505
504 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist, 506 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
505 &pcpus, &pthreads, &group, &inherit)) 507 &pcpus, &pthreads, &group, &inherit))
@@ -582,8 +584,7 @@ static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
582 PyObject *args, PyObject *kwargs) 584 PyObject *args, PyObject *kwargs)
583{ 585{
584 struct perf_evlist *evlist = &pevlist->evlist; 586 struct perf_evlist *evlist = &pevlist->evlist;
585 static char *kwlist[] = {"pages", "overwrite", 587 static char *kwlist[] = { "pages", "overwrite", NULL };
586 NULL, NULL};
587 int pages = 128, overwrite = false; 588 int pages = 128, overwrite = false;
588 589
589 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist, 590 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
@@ -603,7 +604,7 @@ static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
603 PyObject *args, PyObject *kwargs) 604 PyObject *args, PyObject *kwargs)
604{ 605{
605 struct perf_evlist *evlist = &pevlist->evlist; 606 struct perf_evlist *evlist = &pevlist->evlist;
606 static char *kwlist[] = {"timeout", NULL, NULL}; 607 static char *kwlist[] = { "timeout", NULL };
607 int timeout = -1, n; 608 int timeout = -1, n;
608 609
609 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout)) 610 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
@@ -674,7 +675,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
674 struct perf_evlist *evlist = &pevlist->evlist; 675 struct perf_evlist *evlist = &pevlist->evlist;
675 union perf_event *event; 676 union perf_event *event;
676 int sample_id_all = 1, cpu; 677 int sample_id_all = 1, cpu;
677 static char *kwlist[] = {"cpu", "sample_id_all", NULL, NULL}; 678 static char *kwlist[] = { "cpu", "sample_id_all", NULL };
678 int err; 679 int err;
679 680
680 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist, 681 if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index f5a8fbdd3f76..72458d9da5b1 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -12,6 +12,7 @@
12#include "session.h" 12#include "session.h"
13#include "sort.h" 13#include "sort.h"
14#include "util.h" 14#include "util.h"
15#include "cpumap.h"
15 16
16static int perf_session__open(struct perf_session *self, bool force) 17static int perf_session__open(struct perf_session *self, bool force)
17{ 18{
@@ -247,9 +248,14 @@ int perf_session__resolve_callchain(struct perf_session *self,
247 callchain_cursor_reset(&self->callchain_cursor); 248 callchain_cursor_reset(&self->callchain_cursor);
248 249
249 for (i = 0; i < chain->nr; i++) { 250 for (i = 0; i < chain->nr; i++) {
250 u64 ip = chain->ips[i]; 251 u64 ip;
251 struct addr_location al; 252 struct addr_location al;
252 253
254 if (callchain_param.order == ORDER_CALLEE)
255 ip = chain->ips[i];
256 else
257 ip = chain->ips[chain->nr - i - 1];
258
253 if (ip >= PERF_CONTEXT_MAX) { 259 if (ip >= PERF_CONTEXT_MAX) {
254 switch (ip) { 260 switch (ip) {
255 case PERF_CONTEXT_HV: 261 case PERF_CONTEXT_HV:
@@ -407,20 +413,26 @@ static void perf_event__read_swap(union perf_event *event)
407 event->read.id = bswap_64(event->read.id); 413 event->read.id = bswap_64(event->read.id);
408} 414}
409 415
410static void perf_event__attr_swap(union perf_event *event) 416/* exported for swapping attributes in file header */
417void perf_event__attr_swap(struct perf_event_attr *attr)
418{
419 attr->type = bswap_32(attr->type);
420 attr->size = bswap_32(attr->size);
421 attr->config = bswap_64(attr->config);
422 attr->sample_period = bswap_64(attr->sample_period);
423 attr->sample_type = bswap_64(attr->sample_type);
424 attr->read_format = bswap_64(attr->read_format);
425 attr->wakeup_events = bswap_32(attr->wakeup_events);
426 attr->bp_type = bswap_32(attr->bp_type);
427 attr->bp_addr = bswap_64(attr->bp_addr);
428 attr->bp_len = bswap_64(attr->bp_len);
429}
430
431static void perf_event__hdr_attr_swap(union perf_event *event)
411{ 432{
412 size_t size; 433 size_t size;
413 434
414 event->attr.attr.type = bswap_32(event->attr.attr.type); 435 perf_event__attr_swap(&event->attr.attr);
415 event->attr.attr.size = bswap_32(event->attr.attr.size);
416 event->attr.attr.config = bswap_64(event->attr.attr.config);
417 event->attr.attr.sample_period = bswap_64(event->attr.attr.sample_period);
418 event->attr.attr.sample_type = bswap_64(event->attr.attr.sample_type);
419 event->attr.attr.read_format = bswap_64(event->attr.attr.read_format);
420 event->attr.attr.wakeup_events = bswap_32(event->attr.attr.wakeup_events);
421 event->attr.attr.bp_type = bswap_32(event->attr.attr.bp_type);
422 event->attr.attr.bp_addr = bswap_64(event->attr.attr.bp_addr);
423 event->attr.attr.bp_len = bswap_64(event->attr.attr.bp_len);
424 436
425 size = event->header.size; 437 size = event->header.size;
426 size -= (void *)&event->attr.id - (void *)event; 438 size -= (void *)&event->attr.id - (void *)event;
@@ -448,7 +460,7 @@ static perf_event__swap_op perf_event__swap_ops[] = {
448 [PERF_RECORD_LOST] = perf_event__all64_swap, 460 [PERF_RECORD_LOST] = perf_event__all64_swap,
449 [PERF_RECORD_READ] = perf_event__read_swap, 461 [PERF_RECORD_READ] = perf_event__read_swap,
450 [PERF_RECORD_SAMPLE] = perf_event__all64_swap, 462 [PERF_RECORD_SAMPLE] = perf_event__all64_swap,
451 [PERF_RECORD_HEADER_ATTR] = perf_event__attr_swap, 463 [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
452 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap, 464 [PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
453 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap, 465 [PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
454 [PERF_RECORD_HEADER_BUILD_ID] = NULL, 466 [PERF_RECORD_HEADER_BUILD_ID] = NULL,
@@ -708,9 +720,9 @@ static void dump_sample(struct perf_session *session, union perf_event *event,
708 if (!dump_trace) 720 if (!dump_trace)
709 return; 721 return;
710 722
711 printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 "\n", 723 printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
712 event->header.misc, sample->pid, sample->tid, sample->ip, 724 event->header.misc, sample->pid, sample->tid, sample->ip,
713 sample->period); 725 sample->period, sample->addr);
714 726
715 if (session->sample_type & PERF_SAMPLE_CALLCHAIN) 727 if (session->sample_type & PERF_SAMPLE_CALLCHAIN)
716 callchain__printf(sample); 728 callchain__printf(sample);
@@ -1202,9 +1214,10 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
1202 return NULL; 1214 return NULL;
1203} 1215}
1204 1216
1205void perf_session__print_symbols(union perf_event *event, 1217void perf_session__print_ip(union perf_event *event,
1206 struct perf_sample *sample, 1218 struct perf_sample *sample,
1207 struct perf_session *session) 1219 struct perf_session *session,
1220 int print_sym, int print_dso)
1208{ 1221{
1209 struct addr_location al; 1222 struct addr_location al;
1210 const char *symname, *dsoname; 1223 const char *symname, *dsoname;
@@ -1233,32 +1246,83 @@ void perf_session__print_symbols(union perf_event *event,
1233 if (!node) 1246 if (!node)
1234 break; 1247 break;
1235 1248
1236 if (node->sym && node->sym->name) 1249 printf("\t%16" PRIx64, node->ip);
1237 symname = node->sym->name; 1250 if (print_sym) {
1251 if (node->sym && node->sym->name)
1252 symname = node->sym->name;
1253 else
1254 symname = "";
1255
1256 printf(" %s", symname);
1257 }
1258 if (print_dso) {
1259 if (node->map && node->map->dso && node->map->dso->name)
1260 dsoname = node->map->dso->name;
1261 else
1262 dsoname = "";
1263
1264 printf(" (%s)", dsoname);
1265 }
1266 printf("\n");
1267
1268 callchain_cursor_advance(cursor);
1269 }
1270
1271 } else {
1272 printf("%16" PRIx64, sample->ip);
1273 if (print_sym) {
1274 if (al.sym && al.sym->name)
1275 symname = al.sym->name;
1238 else 1276 else
1239 symname = ""; 1277 symname = "";
1240 1278
1241 if (node->map && node->map->dso && node->map->dso->name) 1279 printf(" %s", symname);
1242 dsoname = node->map->dso->name; 1280 }
1281
1282 if (print_dso) {
1283 if (al.map && al.map->dso && al.map->dso->name)
1284 dsoname = al.map->dso->name;
1243 else 1285 else
1244 dsoname = ""; 1286 dsoname = "";
1245 1287
1246 printf("\t%16" PRIx64 " %s (%s)\n", node->ip, symname, dsoname); 1288 printf(" (%s)", dsoname);
1289 }
1290 }
1291}
1247 1292
1248 callchain_cursor_advance(cursor); 1293int perf_session__cpu_bitmap(struct perf_session *session,
1294 const char *cpu_list, unsigned long *cpu_bitmap)
1295{
1296 int i;
1297 struct cpu_map *map;
1298
1299 for (i = 0; i < PERF_TYPE_MAX; ++i) {
1300 struct perf_evsel *evsel;
1301
1302 evsel = perf_session__find_first_evtype(session, i);
1303 if (!evsel)
1304 continue;
1305
1306 if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
1307 pr_err("File does not contain CPU events. "
1308 "Remove -c option to proceed.\n");
1309 return -1;
1249 } 1310 }
1311 }
1250 1312
1251 } else { 1313 map = cpu_map__new(cpu_list);
1252 if (al.sym && al.sym->name)
1253 symname = al.sym->name;
1254 else
1255 symname = "";
1256 1314
1257 if (al.map && al.map->dso && al.map->dso->name) 1315 for (i = 0; i < map->nr; i++) {
1258 dsoname = al.map->dso->name; 1316 int cpu = map->map[i];
1259 else 1317
1260 dsoname = ""; 1318 if (cpu >= MAX_NR_CPUS) {
1319 pr_err("Requested CPU %d too large. "
1320 "Consider raising MAX_NR_CPUS\n", cpu);
1321 return -1;
1322 }
1261 1323
1262 printf("%16" PRIx64 " %s (%s)", al.addr, symname, dsoname); 1324 set_bit(cpu, cpu_bitmap);
1263 } 1325 }
1326
1327 return 0;
1264} 1328}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 66d4e1490879..170601e67d6b 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -112,6 +112,7 @@ int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
112 u64 addr); 112 u64 addr);
113 113
114void mem_bswap_64(void *src, int byte_size); 114void mem_bswap_64(void *src, int byte_size);
115void perf_event__attr_swap(struct perf_event_attr *attr);
115 116
116int perf_session__create_kernel_maps(struct perf_session *self); 117int perf_session__create_kernel_maps(struct perf_session *self);
117 118
@@ -167,8 +168,12 @@ static inline int perf_session__parse_sample(struct perf_session *session,
167struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, 168struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
168 unsigned int type); 169 unsigned int type);
169 170
170void perf_session__print_symbols(union perf_event *event, 171void perf_session__print_ip(union perf_event *event,
171 struct perf_sample *sample, 172 struct perf_sample *sample,
172 struct perf_session *session); 173 struct perf_session *session,
174 int print_sym, int print_dso);
175
176int perf_session__cpu_bitmap(struct perf_session *session,
177 const char *cpu_list, unsigned long *cpu_bitmap);
173 178
174#endif /* __PERF_SESSION_H */ 179#endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index f44fa541d56e..401e220566fd 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -15,95 +15,6 @@ char * field_sep;
15 15
16LIST_HEAD(hist_entry__sort_list); 16LIST_HEAD(hist_entry__sort_list);
17 17
18static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
19 size_t size, unsigned int width);
20static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
21 size_t size, unsigned int width);
22static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
23 size_t size, unsigned int width);
24static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
25 size_t size, unsigned int width);
26static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
27 size_t size, unsigned int width);
28static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
29 size_t size, unsigned int width);
30
31struct sort_entry sort_thread = {
32 .se_header = "Command: Pid",
33 .se_cmp = sort__thread_cmp,
34 .se_snprintf = hist_entry__thread_snprintf,
35 .se_width_idx = HISTC_THREAD,
36};
37
38struct sort_entry sort_comm = {
39 .se_header = "Command",
40 .se_cmp = sort__comm_cmp,
41 .se_collapse = sort__comm_collapse,
42 .se_snprintf = hist_entry__comm_snprintf,
43 .se_width_idx = HISTC_COMM,
44};
45
46struct sort_entry sort_dso = {
47 .se_header = "Shared Object",
48 .se_cmp = sort__dso_cmp,
49 .se_snprintf = hist_entry__dso_snprintf,
50 .se_width_idx = HISTC_DSO,
51};
52
53struct sort_entry sort_sym = {
54 .se_header = "Symbol",
55 .se_cmp = sort__sym_cmp,
56 .se_snprintf = hist_entry__sym_snprintf,
57 .se_width_idx = HISTC_SYMBOL,
58};
59
60struct sort_entry sort_parent = {
61 .se_header = "Parent symbol",
62 .se_cmp = sort__parent_cmp,
63 .se_snprintf = hist_entry__parent_snprintf,
64 .se_width_idx = HISTC_PARENT,
65};
66
67struct sort_entry sort_cpu = {
68 .se_header = "CPU",
69 .se_cmp = sort__cpu_cmp,
70 .se_snprintf = hist_entry__cpu_snprintf,
71 .se_width_idx = HISTC_CPU,
72};
73
74struct sort_dimension {
75 const char *name;
76 struct sort_entry *entry;
77 int taken;
78};
79
80static struct sort_dimension sort_dimensions[] = {
81 { .name = "pid", .entry = &sort_thread, },
82 { .name = "comm", .entry = &sort_comm, },
83 { .name = "dso", .entry = &sort_dso, },
84 { .name = "symbol", .entry = &sort_sym, },
85 { .name = "parent", .entry = &sort_parent, },
86 { .name = "cpu", .entry = &sort_cpu, },
87};
88
89int64_t cmp_null(void *l, void *r)
90{
91 if (!l && !r)
92 return 0;
93 else if (!l)
94 return -1;
95 else
96 return 1;
97}
98
99/* --sort pid */
100
101int64_t
102sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
103{
104 return right->thread->pid - left->thread->pid;
105}
106
107static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...) 18static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
108{ 19{
109 int n; 20 int n;
@@ -125,6 +36,24 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
125 return n; 36 return n;
126} 37}
127 38
39static int64_t cmp_null(void *l, void *r)
40{
41 if (!l && !r)
42 return 0;
43 else if (!l)
44 return -1;
45 else
46 return 1;
47}
48
49/* --sort pid */
50
51static int64_t
52sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
53{
54 return right->thread->pid - left->thread->pid;
55}
56
128static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf, 57static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
129 size_t size, unsigned int width) 58 size_t size, unsigned int width)
130{ 59{
@@ -132,15 +61,50 @@ static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
132 self->thread->comm ?: "", self->thread->pid); 61 self->thread->comm ?: "", self->thread->pid);
133} 62}
134 63
64struct sort_entry sort_thread = {
65 .se_header = "Command: Pid",
66 .se_cmp = sort__thread_cmp,
67 .se_snprintf = hist_entry__thread_snprintf,
68 .se_width_idx = HISTC_THREAD,
69};
70
71/* --sort comm */
72
73static int64_t
74sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
75{
76 return right->thread->pid - left->thread->pid;
77}
78
79static int64_t
80sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
81{
82 char *comm_l = left->thread->comm;
83 char *comm_r = right->thread->comm;
84
85 if (!comm_l || !comm_r)
86 return cmp_null(comm_l, comm_r);
87
88 return strcmp(comm_l, comm_r);
89}
90
135static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf, 91static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
136 size_t size, unsigned int width) 92 size_t size, unsigned int width)
137{ 93{
138 return repsep_snprintf(bf, size, "%*s", width, self->thread->comm); 94 return repsep_snprintf(bf, size, "%*s", width, self->thread->comm);
139} 95}
140 96
97struct sort_entry sort_comm = {
98 .se_header = "Command",
99 .se_cmp = sort__comm_cmp,
100 .se_collapse = sort__comm_collapse,
101 .se_snprintf = hist_entry__comm_snprintf,
102 .se_width_idx = HISTC_COMM,
103};
104
141/* --sort dso */ 105/* --sort dso */
142 106
143int64_t 107static int64_t
144sort__dso_cmp(struct hist_entry *left, struct hist_entry *right) 108sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
145{ 109{
146 struct dso *dso_l = left->ms.map ? left->ms.map->dso : NULL; 110 struct dso *dso_l = left->ms.map ? left->ms.map->dso : NULL;
@@ -173,9 +137,16 @@ static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
173 return repsep_snprintf(bf, size, "%-*s", width, "[unknown]"); 137 return repsep_snprintf(bf, size, "%-*s", width, "[unknown]");
174} 138}
175 139
140struct sort_entry sort_dso = {
141 .se_header = "Shared Object",
142 .se_cmp = sort__dso_cmp,
143 .se_snprintf = hist_entry__dso_snprintf,
144 .se_width_idx = HISTC_DSO,
145};
146
176/* --sort symbol */ 147/* --sort symbol */
177 148
178int64_t 149static int64_t
179sort__sym_cmp(struct hist_entry *left, struct hist_entry *right) 150sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
180{ 151{
181 u64 ip_l, ip_r; 152 u64 ip_l, ip_r;
@@ -211,29 +182,16 @@ static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
211 return ret; 182 return ret;
212} 183}
213 184
214/* --sort comm */ 185struct sort_entry sort_sym = {
215 186 .se_header = "Symbol",
216int64_t 187 .se_cmp = sort__sym_cmp,
217sort__comm_cmp(struct hist_entry *left, struct hist_entry *right) 188 .se_snprintf = hist_entry__sym_snprintf,
218{ 189 .se_width_idx = HISTC_SYMBOL,
219 return right->thread->pid - left->thread->pid; 190};
220}
221
222int64_t
223sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
224{
225 char *comm_l = left->thread->comm;
226 char *comm_r = right->thread->comm;
227
228 if (!comm_l || !comm_r)
229 return cmp_null(comm_l, comm_r);
230
231 return strcmp(comm_l, comm_r);
232}
233 191
234/* --sort parent */ 192/* --sort parent */
235 193
236int64_t 194static int64_t
237sort__parent_cmp(struct hist_entry *left, struct hist_entry *right) 195sort__parent_cmp(struct hist_entry *left, struct hist_entry *right)
238{ 196{
239 struct symbol *sym_l = left->parent; 197 struct symbol *sym_l = left->parent;
@@ -252,9 +210,16 @@ static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
252 self->parent ? self->parent->name : "[other]"); 210 self->parent ? self->parent->name : "[other]");
253} 211}
254 212
213struct sort_entry sort_parent = {
214 .se_header = "Parent symbol",
215 .se_cmp = sort__parent_cmp,
216 .se_snprintf = hist_entry__parent_snprintf,
217 .se_width_idx = HISTC_PARENT,
218};
219
255/* --sort cpu */ 220/* --sort cpu */
256 221
257int64_t 222static int64_t
258sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right) 223sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right)
259{ 224{
260 return right->cpu - left->cpu; 225 return right->cpu - left->cpu;
@@ -266,6 +231,28 @@ static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
266 return repsep_snprintf(bf, size, "%-*d", width, self->cpu); 231 return repsep_snprintf(bf, size, "%-*d", width, self->cpu);
267} 232}
268 233
234struct sort_entry sort_cpu = {
235 .se_header = "CPU",
236 .se_cmp = sort__cpu_cmp,
237 .se_snprintf = hist_entry__cpu_snprintf,
238 .se_width_idx = HISTC_CPU,
239};
240
241struct sort_dimension {
242 const char *name;
243 struct sort_entry *entry;
244 int taken;
245};
246
247static struct sort_dimension sort_dimensions[] = {
248 { .name = "pid", .entry = &sort_thread, },
249 { .name = "comm", .entry = &sort_comm, },
250 { .name = "dso", .entry = &sort_dso, },
251 { .name = "symbol", .entry = &sort_sym, },
252 { .name = "parent", .entry = &sort_parent, },
253 { .name = "cpu", .entry = &sort_cpu, },
254};
255
269int sort_dimension__add(const char *tok) 256int sort_dimension__add(const char *tok)
270{ 257{
271 unsigned int i; 258 unsigned int i;
@@ -273,15 +260,9 @@ int sort_dimension__add(const char *tok)
273 for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) { 260 for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) {
274 struct sort_dimension *sd = &sort_dimensions[i]; 261 struct sort_dimension *sd = &sort_dimensions[i];
275 262
276 if (sd->taken)
277 continue;
278
279 if (strncasecmp(tok, sd->name, strlen(tok))) 263 if (strncasecmp(tok, sd->name, strlen(tok)))
280 continue; 264 continue;
281 265
282 if (sd->entry->se_collapse)
283 sort__need_collapse = 1;
284
285 if (sd->entry == &sort_parent) { 266 if (sd->entry == &sort_parent) {
286 int ret = regcomp(&parent_regex, parent_pattern, REG_EXTENDED); 267 int ret = regcomp(&parent_regex, parent_pattern, REG_EXTENDED);
287 if (ret) { 268 if (ret) {
@@ -294,6 +275,12 @@ int sort_dimension__add(const char *tok)
294 sort__has_parent = 1; 275 sort__has_parent = 1;
295 } 276 }
296 277
278 if (sd->taken)
279 return 0;
280
281 if (sd->entry->se_collapse)
282 sort__need_collapse = 1;
283
297 if (list_empty(&hist_entry__sort_list)) { 284 if (list_empty(&hist_entry__sort_list)) {
298 if (!strcmp(sd->name, "pid")) 285 if (!strcmp(sd->name, "pid"))
299 sort__first_dimension = SORT_PID; 286 sort__first_dimension = SORT_PID;
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 0b91053a7d11..77d0388ad415 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -103,20 +103,6 @@ extern struct sort_entry sort_thread;
103extern struct list_head hist_entry__sort_list; 103extern struct list_head hist_entry__sort_list;
104 104
105void setup_sorting(const char * const usagestr[], const struct option *opts); 105void setup_sorting(const char * const usagestr[], const struct option *opts);
106
107extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
108extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);
109extern size_t sort__dso_print(FILE *, struct hist_entry *, unsigned int);
110extern size_t sort__sym_print(FILE *, struct hist_entry *, unsigned int __used);
111extern int64_t cmp_null(void *, void *);
112extern int64_t sort__thread_cmp(struct hist_entry *, struct hist_entry *);
113extern int64_t sort__comm_cmp(struct hist_entry *, struct hist_entry *);
114extern int64_t sort__comm_collapse(struct hist_entry *, struct hist_entry *);
115extern int64_t sort__dso_cmp(struct hist_entry *, struct hist_entry *);
116extern int64_t sort__sym_cmp(struct hist_entry *, struct hist_entry *);
117extern int64_t sort__parent_cmp(struct hist_entry *, struct hist_entry *);
118int64_t sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right);
119extern size_t sort__parent_print(FILE *, struct hist_entry *, unsigned int);
120extern int sort_dimension__add(const char *); 106extern int sort_dimension__add(const char *);
121void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list, 107void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
122 const char *list_name, FILE *fp); 108 const char *list_name, FILE *fp);
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index b9a985dadd08..d5836382ff2c 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -294,3 +294,22 @@ bool strlazymatch(const char *str, const char *pat)
294{ 294{
295 return __match_glob(str, pat, true); 295 return __match_glob(str, pat, true);
296} 296}
297
298/**
299 * strtailcmp - Compare the tail of two strings
300 * @s1: 1st string to be compared
301 * @s2: 2nd string to be compared
302 *
303 * Return 0 if whole of either string is same as another's tail part.
304 */
305int strtailcmp(const char *s1, const char *s2)
306{
307 int i1 = strlen(s1);
308 int i2 = strlen(s2);
309 while (--i1 >= 0 && --i2 >= 0) {
310 if (s1[i1] != s2[i2])
311 return s1[i1] - s2[i2];
312 }
313 return 0;
314}
315
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 35729f4c40cb..3403f814ad72 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -183,106 +183,59 @@ int bigendian(void)
183 return *ptr == 0x01020304; 183 return *ptr == 0x01020304;
184} 184}
185 185
186static unsigned long long copy_file_fd(int fd) 186/* unfortunately, you can not stat debugfs or proc files for size */
187static void record_file(const char *file, size_t hdr_sz)
187{ 188{
188 unsigned long long size = 0; 189 unsigned long long size = 0;
189 char buf[BUFSIZ]; 190 char buf[BUFSIZ], *sizep;
190 int r; 191 off_t hdr_pos = lseek(output_fd, 0, SEEK_CUR);
191 192 int r, fd;
192 do {
193 r = read(fd, buf, BUFSIZ);
194 if (r > 0) {
195 size += r;
196 write_or_die(buf, r);
197 }
198 } while (r > 0);
199
200 return size;
201}
202
203static unsigned long long copy_file(const char *file)
204{
205 unsigned long long size = 0;
206 int fd;
207 193
208 fd = open(file, O_RDONLY); 194 fd = open(file, O_RDONLY);
209 if (fd < 0) 195 if (fd < 0)
210 die("Can't read '%s'", file); 196 die("Can't read '%s'", file);
211 size = copy_file_fd(fd);
212 close(fd);
213 197
214 return size; 198 /* put in zeros for file size, then fill true size later */
215} 199 write_or_die(&size, hdr_sz);
216
217static unsigned long get_size_fd(int fd)
218{
219 unsigned long long size = 0;
220 char buf[BUFSIZ];
221 int r;
222 200
223 do { 201 do {
224 r = read(fd, buf, BUFSIZ); 202 r = read(fd, buf, BUFSIZ);
225 if (r > 0) 203 if (r > 0) {
226 size += r; 204 size += r;
205 write_or_die(buf, r);
206 }
227 } while (r > 0); 207 } while (r > 0);
228
229 lseek(fd, 0, SEEK_SET);
230
231 return size;
232}
233
234static unsigned long get_size(const char *file)
235{
236 unsigned long long size = 0;
237 int fd;
238
239 fd = open(file, O_RDONLY);
240 if (fd < 0)
241 die("Can't read '%s'", file);
242 size = get_size_fd(fd);
243 close(fd); 208 close(fd);
244 209
245 return size; 210 /* ugh, handle big-endian hdr_size == 4 */
211 sizep = (char*)&size;
212 if (bigendian())
213 sizep += sizeof(u64) - hdr_sz;
214
215 if (pwrite(output_fd, sizep, hdr_sz, hdr_pos) < 0)
216 die("writing to %s", output_file);
246} 217}
247 218
248static void read_header_files(void) 219static void read_header_files(void)
249{ 220{
250 unsigned long long size, check_size;
251 char *path; 221 char *path;
252 int fd; 222 struct stat st;
253 223
254 path = get_tracing_file("events/header_page"); 224 path = get_tracing_file("events/header_page");
255 fd = open(path, O_RDONLY); 225 if (stat(path, &st) < 0)
256 if (fd < 0)
257 die("can't read '%s'", path); 226 die("can't read '%s'", path);
258 227
259 /* unfortunately, you can not stat debugfs files for size */
260 size = get_size_fd(fd);
261
262 write_or_die("header_page", 12); 228 write_or_die("header_page", 12);
263 write_or_die(&size, 8); 229 record_file(path, 8);
264 check_size = copy_file_fd(fd);
265 close(fd);
266
267 if (size != check_size)
268 die("wrong size for '%s' size=%lld read=%lld",
269 path, size, check_size);
270 put_tracing_file(path); 230 put_tracing_file(path);
271 231
272 path = get_tracing_file("events/header_event"); 232 path = get_tracing_file("events/header_event");
273 fd = open(path, O_RDONLY); 233 if (stat(path, &st) < 0)
274 if (fd < 0)
275 die("can't read '%s'", path); 234 die("can't read '%s'", path);
276 235
277 size = get_size_fd(fd);
278
279 write_or_die("header_event", 13); 236 write_or_die("header_event", 13);
280 write_or_die(&size, 8); 237 record_file(path, 8);
281 check_size = copy_file_fd(fd);
282 if (size != check_size)
283 die("wrong size for '%s'", path);
284 put_tracing_file(path); 238 put_tracing_file(path);
285 close(fd);
286} 239}
287 240
288static bool name_in_tp_list(char *sys, struct tracepoint_path *tps) 241static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
@@ -298,7 +251,6 @@ static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
298 251
299static void copy_event_system(const char *sys, struct tracepoint_path *tps) 252static void copy_event_system(const char *sys, struct tracepoint_path *tps)
300{ 253{
301 unsigned long long size, check_size;
302 struct dirent *dent; 254 struct dirent *dent;
303 struct stat st; 255 struct stat st;
304 char *format; 256 char *format;
@@ -338,14 +290,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
338 sprintf(format, "%s/%s/format", sys, dent->d_name); 290 sprintf(format, "%s/%s/format", sys, dent->d_name);
339 ret = stat(format, &st); 291 ret = stat(format, &st);
340 292
341 if (ret >= 0) { 293 if (ret >= 0)
342 /* unfortunately, you can not stat debugfs files for size */ 294 record_file(format, 8);
343 size = get_size(format);
344 write_or_die(&size, 8);
345 check_size = copy_file(format);
346 if (size != check_size)
347 die("error in size of file '%s'", format);
348 }
349 295
350 free(format); 296 free(format);
351 } 297 }
@@ -426,7 +372,7 @@ static void read_event_files(struct tracepoint_path *tps)
426 372
427static void read_proc_kallsyms(void) 373static void read_proc_kallsyms(void)
428{ 374{
429 unsigned int size, check_size; 375 unsigned int size;
430 const char *path = "/proc/kallsyms"; 376 const char *path = "/proc/kallsyms";
431 struct stat st; 377 struct stat st;
432 int ret; 378 int ret;
@@ -438,17 +384,12 @@ static void read_proc_kallsyms(void)
438 write_or_die(&size, 4); 384 write_or_die(&size, 4);
439 return; 385 return;
440 } 386 }
441 size = get_size(path); 387 record_file(path, 4);
442 write_or_die(&size, 4);
443 check_size = copy_file(path);
444 if (size != check_size)
445 die("error in size of file '%s'", path);
446
447} 388}
448 389
449static void read_ftrace_printk(void) 390static void read_ftrace_printk(void)
450{ 391{
451 unsigned int size, check_size; 392 unsigned int size;
452 char *path; 393 char *path;
453 struct stat st; 394 struct stat st;
454 int ret; 395 int ret;
@@ -461,11 +402,8 @@ static void read_ftrace_printk(void)
461 write_or_die(&size, 4); 402 write_or_die(&size, 4);
462 goto out; 403 goto out;
463 } 404 }
464 size = get_size(path); 405 record_file(path, 4);
465 write_or_die(&size, 4); 406
466 check_size = copy_file(path);
467 if (size != check_size)
468 die("error in size of file '%s'", path);
469out: 407out:
470 put_tracing_file(path); 408 put_tracing_file(path);
471} 409}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index fc784284ac8b..0128906bac88 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -238,6 +238,7 @@ char **argv_split(const char *str, int *argcp);
238void argv_free(char **argv); 238void argv_free(char **argv);
239bool strglobmatch(const char *str, const char *pat); 239bool strglobmatch(const char *str, const char *pat);
240bool strlazymatch(const char *str, const char *pat); 240bool strlazymatch(const char *str, const char *pat);
241int strtailcmp(const char *s1, const char *s2);
241unsigned long convert_unit(unsigned long value, char *unit); 242unsigned long convert_unit(unsigned long value, char *unit);
242int readn(int fd, void *buf, size_t size); 243int readn(int fd, void *buf, size_t size);
243 244
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-22 02:21:35 -0500