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-rw-r--r--tools/perf/Makefile21
-rw-r--r--tools/perf/builtin-lock.c8
-rw-r--r--tools/perf/builtin-probe.c14
-rw-r--r--tools/perf/builtin-record.c23
-rw-r--r--tools/perf/builtin-report.c15
-rw-r--r--tools/perf/builtin-sched.c24
-rw-r--r--tools/perf/builtin-stat.c7
-rw-r--r--tools/perf/util/config.c32
-rw-r--r--tools/perf/util/dwarf-aux.c210
-rw-r--r--tools/perf/util/dwarf-aux.h11
-rw-r--r--tools/perf/util/evlist.c24
-rw-r--r--tools/perf/util/evlist.h2
-rw-r--r--tools/perf/util/header.c19
-rw-r--r--tools/perf/util/include/linux/compiler.h2
-rw-r--r--tools/perf/util/parse-events.c8
-rw-r--r--tools/perf/util/probe-event.c12
-rw-r--r--tools/perf/util/probe-finder.c231
-rw-r--r--tools/perf/util/probe-finder.h2
-rw-r--r--tools/perf/util/python.c115
-rw-r--r--tools/perf/util/setup.py21
-rw-r--r--tools/perf/util/symbol.c68
-rw-r--r--tools/perf/util/symbol.h1
-rw-r--r--tools/perf/util/ui/browsers/top.c1
23 files changed, 662 insertions, 209 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 56d62d3fb16..3b8f7b80376 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -181,9 +181,9 @@ strip-libs = $(filter-out -l%,$(1))
$(OUTPUT)python/perf.so: $(PYRF_OBJS)
$(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \
- --quiet build_ext \
- --build-lib='$(OUTPUT)python' \
- --build-temp='$(OUTPUT)python/temp'
+ --quiet build_ext; \
+ mkdir -p $(OUTPUT)python && \
+ cp $(PYTHON_EXTBUILD_LIB)perf.so $(OUTPUT)python/
#
# No Perl scripts right now:
#
@@ -509,9 +509,13 @@ else
PYTHON_WORD := $(call shell-wordify,$(PYTHON))
- python-clean := $(PYTHON_WORD) util/setup.py clean \
- --build-lib='$(OUTPUT)python' \
- --build-temp='$(OUTPUT)python/temp'
+ # python extension build directories
+ PYTHON_EXTBUILD := $(OUTPUT)python_ext_build/
+ PYTHON_EXTBUILD_LIB := $(PYTHON_EXTBUILD)lib/
+ PYTHON_EXTBUILD_TMP := $(PYTHON_EXTBUILD)tmp/
+ export PYTHON_EXTBUILD_LIB PYTHON_EXTBUILD_TMP
+
+ python-clean := rm -rf $(PYTHON_EXTBUILD) $(OUTPUT)python/perf.so
ifdef NO_LIBPYTHON
$(call disable-python)
@@ -868,6 +872,9 @@ install: all
$(INSTALL) scripts/python/*.py -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python'
$(INSTALL) scripts/python/bin/* -t '$(DESTDIR_SQ)$(perfexec_instdir_SQ)/scripts/python/bin'
+install-python_ext:
+ $(PYTHON_WORD) util/setup.py --quiet install --root='/$(DESTDIR_SQ)'
+
install-doc:
$(MAKE) -C Documentation install
@@ -895,7 +902,7 @@ quick-install-html:
### Cleaning rules
clean:
- $(RM) $(OUTPUT){*.o,*/*.o,*/*/*.o,*/*/*/*.o,$(LIB_FILE),perf-archive}
+ $(RM) $(LIB_OBJS) $(BUILTIN_OBJS) $(LIB_FILE) $(OUTPUT)perf-archive $(OUTPUT)perf.o $(LANG_BINDINGS)
$(RM) $(ALL_PROGRAMS) perf
$(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope*
$(MAKE) -C Documentation/ clean
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index 9ac05aafd9b..899080ace26 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -942,10 +942,10 @@ static const char *record_args[] = {
"-f",
"-m", "1024",
"-c", "1",
- "-e", "lock:lock_acquire:r",
- "-e", "lock:lock_acquired:r",
- "-e", "lock:lock_contended:r",
- "-e", "lock:lock_release:r",
+ "-e", "lock:lock_acquire",
+ "-e", "lock:lock_acquired",
+ "-e", "lock:lock_contended",
+ "-e", "lock:lock_release",
};
static int __cmd_record(int argc, const char **argv)
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 5f2a5c7046d..710ae3d0a48 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -134,10 +134,18 @@ static int opt_show_lines(const struct option *opt __used,
{
int ret = 0;
- if (str)
- ret = parse_line_range_desc(str, &params.line_range);
- INIT_LIST_HEAD(&params.line_range.line_list);
+ if (!str)
+ return 0;
+
+ if (params.show_lines) {
+ pr_warning("Warning: more than one --line options are"
+ " detected. Only the first one is valid.\n");
+ return 0;
+ }
+
params.show_lines = true;
+ ret = parse_line_range_desc(str, &params.line_range);
+ INIT_LIST_HEAD(&params.line_range.line_list);
return ret;
}
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 80dc5b790e4..6b0519f885e 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -30,8 +30,6 @@
#include <sched.h>
#include <sys/mman.h>
-#define FD(e, x, y) (*(int *)xyarray__entry(e->fd, x, y))
-
enum write_mode_t {
WRITE_FORCE,
WRITE_APPEND
@@ -47,7 +45,7 @@ static int freq = 1000;
static int output;
static int pipe_output = 0;
static const char *output_name = NULL;
-static int group = 0;
+static bool group = false;
static int realtime_prio = 0;
static bool nodelay = false;
static bool raw_samples = false;
@@ -438,7 +436,6 @@ static void mmap_read_all(void)
static int __cmd_record(int argc, const char **argv)
{
- int i;
struct stat st;
int flags;
int err;
@@ -682,7 +679,6 @@ static int __cmd_record(int argc, const char **argv)
for (;;) {
int hits = samples;
- int thread;
mmap_read_all();
@@ -693,19 +689,8 @@ static int __cmd_record(int argc, const char **argv)
waking++;
}
- if (done) {
- for (i = 0; i < evsel_list->cpus->nr; i++) {
- struct perf_evsel *pos;
-
- list_for_each_entry(pos, &evsel_list->entries, node) {
- for (thread = 0;
- thread < evsel_list->threads->nr;
- thread++)
- ioctl(FD(pos, i, thread),
- PERF_EVENT_IOC_DISABLE);
- }
- }
- }
+ if (done)
+ perf_evlist__disable(evsel_list);
}
if (quiet || signr == SIGUSR1)
@@ -768,6 +753,8 @@ const struct option record_options[] = {
"child tasks do not inherit counters"),
OPT_UINTEGER('F', "freq", &user_freq, "profile at this frequency"),
OPT_UINTEGER('m', "mmap-pages", &mmap_pages, "number of mmap data pages"),
+ OPT_BOOLEAN(0, "group", &group,
+ "put the counters into a counter group"),
OPT_BOOLEAN('g', "call-graph", &call_graph,
"do call-graph (stack chain/backtrace) recording"),
OPT_INCR('v', "verbose", &verbose,
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f854efda768..d7ff277bdb7 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -162,23 +162,22 @@ static int perf_session__setup_sample_type(struct perf_session *self)
{
if (!(self->sample_type & PERF_SAMPLE_CALLCHAIN)) {
if (sort__has_parent) {
- fprintf(stderr, "selected --sort parent, but no"
- " callchain data. Did you call"
- " perf record without -g?\n");
+ ui__warning("Selected --sort parent, but no "
+ "callchain data. Did you call "
+ "'perf record' without -g?\n");
return -EINVAL;
}
if (symbol_conf.use_callchain) {
- fprintf(stderr, "selected -g but no callchain data."
- " Did you call perf record without"
- " -g?\n");
+ ui__warning("Selected -g but no callchain data. Did "
+ "you call 'perf record' without -g?\n");
return -1;
}
} else if (!dont_use_callchains && callchain_param.mode != CHAIN_NONE &&
!symbol_conf.use_callchain) {
symbol_conf.use_callchain = true;
if (callchain_register_param(&callchain_param) < 0) {
- fprintf(stderr, "Can't register callchain"
- " params\n");
+ ui__warning("Can't register callchain "
+ "params.\n");
return -EINVAL;
}
}
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index dcfe8873c9a..5177964943e 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1637,23 +1637,29 @@ static struct perf_event_ops event_ops = {
.ordered_samples = true,
};
-static int read_events(void)
+static void read_events(bool destroy, struct perf_session **psession)
{
int err = -EINVAL;
struct perf_session *session = perf_session__new(input_name, O_RDONLY,
0, false, &event_ops);
if (session == NULL)
- return -ENOMEM;
+ die("No Memory");
if (perf_session__has_traces(session, "record -R")) {
err = perf_session__process_events(session, &event_ops);
+ if (err)
+ die("Failed to process events, error %d", err);
+
nr_events = session->hists.stats.nr_events[0];
nr_lost_events = session->hists.stats.total_lost;
nr_lost_chunks = session->hists.stats.nr_events[PERF_RECORD_LOST];
}
- perf_session__delete(session);
- return err;
+ if (destroy)
+ perf_session__delete(session);
+
+ if (psession)
+ *psession = session;
}
static void print_bad_events(void)
@@ -1689,9 +1695,10 @@ static void print_bad_events(void)
static void __cmd_lat(void)
{
struct rb_node *next;
+ struct perf_session *session;
setup_pager();
- read_events();
+ read_events(false, &session);
sort_lat();
printf("\n ---------------------------------------------------------------------------------------------------------------\n");
@@ -1717,6 +1724,7 @@ static void __cmd_lat(void)
print_bad_events();
printf("\n");
+ perf_session__delete(session);
}
static struct trace_sched_handler map_ops = {
@@ -1731,7 +1739,7 @@ static void __cmd_map(void)
max_cpu = sysconf(_SC_NPROCESSORS_CONF);
setup_pager();
- read_events();
+ read_events(true, NULL);
print_bad_events();
}
@@ -1744,7 +1752,7 @@ static void __cmd_replay(void)
test_calibrations();
- read_events();
+ read_events(true, NULL);
printf("nr_run_events: %ld\n", nr_run_events);
printf("nr_sleep_events: %ld\n", nr_sleep_events);
@@ -1769,7 +1777,7 @@ static void __cmd_replay(void)
static const char * const sched_usage[] = {
- "perf sched [<options>] {record|latency|map|replay|trace}",
+ "perf sched [<options>] {record|latency|map|replay|script}",
NULL
};
diff --git a/tools/perf/builtin-stat.c b/tools/perf/builtin-stat.c
index 1ad04ce29c3..5deb17d9e79 100644
--- a/tools/perf/builtin-stat.c
+++ b/tools/perf/builtin-stat.c
@@ -193,6 +193,7 @@ static int big_num_opt = -1;
static const char *cpu_list;
static const char *csv_sep = NULL;
static bool csv_output = false;
+static bool group = false;
static volatile int done = 0;
@@ -280,14 +281,14 @@ static int create_perf_stat_counter(struct perf_evsel *evsel)
attr->inherit = !no_inherit;
if (system_wide)
- return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, false);
+ return perf_evsel__open_per_cpu(evsel, evsel_list->cpus, group);
if (target_pid == -1 && target_tid == -1) {
attr->disabled = 1;
attr->enable_on_exec = 1;
}
- return perf_evsel__open_per_thread(evsel, evsel_list->threads, false);
+ return perf_evsel__open_per_thread(evsel, evsel_list->threads, group);
}
/*
@@ -1043,6 +1044,8 @@ static const struct option options[] = {
"stat events on existing thread id"),
OPT_BOOLEAN('a', "all-cpus", &system_wide,
"system-wide collection from all CPUs"),
+ OPT_BOOLEAN('g', "group", &group,
+ "put the counters into a counter group"),
OPT_BOOLEAN('c', "scale", &scale,
"scale/normalize counters"),
OPT_INCR('v', "verbose", &verbose,
diff --git a/tools/perf/util/config.c b/tools/perf/util/config.c
index e02d78cae70..fe02903f7d0 100644
--- a/tools/perf/util/config.c
+++ b/tools/perf/util/config.c
@@ -399,7 +399,6 @@ static int perf_config_global(void)
int perf_config(config_fn_t fn, void *data)
{
int ret = 0, found = 0;
- char *repo_config = NULL;
const char *home = NULL;
/* Setting $PERF_CONFIG makes perf read _only_ the given config file. */
@@ -414,19 +413,32 @@ int perf_config(config_fn_t fn, void *data)
home = getenv("HOME");
if (perf_config_global() && home) {
char *user_config = strdup(mkpath("%s/.perfconfig", home));
- if (!access(user_config, R_OK)) {
- ret += perf_config_from_file(fn, user_config, data);
- found += 1;
+ struct stat st;
+
+ if (user_config == NULL) {
+ warning("Not enough memory to process %s/.perfconfig, "
+ "ignoring it.", home);
+ goto out;
}
- free(user_config);
- }
- repo_config = perf_pathdup("config");
- if (!access(repo_config, R_OK)) {
- ret += perf_config_from_file(fn, repo_config, data);
+ if (stat(user_config, &st) < 0)
+ goto out_free;
+
+ if (st.st_uid && (st.st_uid != geteuid())) {
+ warning("File %s not owned by current user or root, "
+ "ignoring it.", user_config);
+ goto out_free;
+ }
+
+ if (!st.st_size)
+ goto out_free;
+
+ ret += perf_config_from_file(fn, user_config, data);
found += 1;
+out_free:
+ free(user_config);
}
- free(repo_config);
+out:
if (found == 0)
return -1;
return ret;
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
index fddf40f30d3..ee51e9b4dc0 100644
--- a/tools/perf/util/dwarf-aux.c
+++ b/tools/perf/util/dwarf-aux.c
@@ -96,6 +96,39 @@ int cu_find_lineinfo(Dwarf_Die *cu_die, unsigned long addr,
return *lineno ?: -ENOENT;
}
+static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data);
+
+/**
+ * cu_walk_functions_at - Walk on function DIEs at given address
+ * @cu_die: A CU DIE
+ * @addr: An address
+ * @callback: A callback which called with found DIEs
+ * @data: A user data
+ *
+ * Walk on function DIEs at given @addr in @cu_die. Passed DIEs
+ * should be subprogram or inlined-subroutines.
+ */
+int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
+ int (*callback)(Dwarf_Die *, void *), void *data)
+{
+ Dwarf_Die die_mem;
+ Dwarf_Die *sc_die;
+ int ret = -ENOENT;
+
+ /* Inlined function could be recursive. Trace it until fail */
+ for (sc_die = die_find_realfunc(cu_die, addr, &die_mem);
+ sc_die != NULL;
+ sc_die = die_find_child(sc_die, __die_find_inline_cb, &addr,
+ &die_mem)) {
+ ret = callback(sc_die, data);
+ if (ret)
+ break;
+ }
+
+ return ret;
+
+}
+
/**
* die_compare_name - Compare diename and tname
* @dw_die: a DIE
@@ -198,6 +231,19 @@ static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
return 0;
}
+/* Get attribute and translate it as a sdata */
+static int die_get_attr_sdata(Dwarf_Die *tp_die, unsigned int attr_name,
+ Dwarf_Sword *result)
+{
+ Dwarf_Attribute attr;
+
+ if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
+ dwarf_formsdata(&attr, result) != 0)
+ return -ENOENT;
+
+ return 0;
+}
+
/**
* die_is_signed_type - Check whether a type DIE is signed or not
* @tp_die: a DIE of a type
@@ -250,6 +296,50 @@ int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs)
return 0;
}
+/* Get the call file index number in CU DIE */
+static int die_get_call_fileno(Dwarf_Die *in_die)
+{
+ Dwarf_Sword idx;
+
+ if (die_get_attr_sdata(in_die, DW_AT_call_file, &idx) == 0)
+ return (int)idx;
+ else
+ return -ENOENT;
+}
+
+/* Get the declared file index number in CU DIE */
+static int die_get_decl_fileno(Dwarf_Die *pdie)
+{
+ Dwarf_Sword idx;
+
+ if (die_get_attr_sdata(pdie, DW_AT_decl_file, &idx) == 0)
+ return (int)idx;
+ else
+ return -ENOENT;
+}
+
+/**
+ * die_get_call_file - Get callsite file name of inlined function instance
+ * @in_die: a DIE of an inlined function instance
+ *
+ * Get call-site file name of @in_die. This means from which file the inline
+ * function is called.
+ */
+const char *die_get_call_file(Dwarf_Die *in_die)
+{
+ Dwarf_Die cu_die;
+ Dwarf_Files *files;
+ int idx;
+
+ idx = die_get_call_fileno(in_die);
+ if (idx < 0 || !dwarf_diecu(in_die, &cu_die, NULL, NULL) ||
+ dwarf_getsrcfiles(&cu_die, &files, NULL) != 0)
+ return NULL;
+
+ return dwarf_filesrc(files, idx, NULL, NULL);
+}
+
+
/**
* die_find_child - Generic DIE search function in DIE tree
* @rt_die: a root DIE
@@ -374,9 +464,78 @@ Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
return die_mem;
}
+struct __instance_walk_param {
+ void *addr;
+ int (*callback)(Dwarf_Die *, void *);
+ void *data;
+ int retval;
+};
+
+static int __die_walk_instances_cb(Dwarf_Die *inst, void *data)
+{
+ struct __instance_walk_param *iwp = data;
+ Dwarf_Attribute attr_mem;
+ Dwarf_Die origin_mem;
+ Dwarf_Attribute *attr;
+ Dwarf_Die *origin;
+ int tmp;
+
+ attr = dwarf_attr(inst, DW_AT_abstract_origin, &attr_mem);
+ if (attr == NULL)
+ return DIE_FIND_CB_CONTINUE;
+
+ origin = dwarf_formref_die(attr, &origin_mem);
+ if (origin == NULL || origin->addr != iwp->addr)
+ return DIE_FIND_CB_CONTINUE;
+
+ /* Ignore redundant instances */
+ if (dwarf_tag(inst) == DW_TAG_inlined_subroutine) {
+ dwarf_decl_line(origin, &tmp);
+ if (die_get_call_lineno(inst) == tmp) {
+ tmp = die_get_decl_fileno(origin);
+ if (die_get_call_fileno(inst) == tmp)
+ return DIE_FIND_CB_CONTINUE;
+ }
+ }
+
+ iwp->retval = iwp->callback(inst, iwp->data);
+
+ return (iwp->retval) ? DIE_FIND_CB_END : DIE_FIND_CB_CONTINUE;
+}
+
+/**
+ * die_walk_instances - Walk on instances of given DIE
+ * @or_die: an abstract original DIE
+ * @callback: a callback function which is called with instance DIE
+ * @data: user data
+ *
+ * Walk on the instances of give @in_die. @in_die must be an inlined function
+ * declartion. This returns the return value of @callback if it returns
+ * non-zero value, or -ENOENT if there is no instance.
+ */
+int die_walk_instances(Dwarf_Die *or_die, int (*callback)(Dwarf_Die *, void *),
+ void *data)
+{
+ Dwarf_Die cu_die;
+ Dwarf_Die die_mem;
+ struct __instance_walk_param iwp = {
+ .addr = or_die->addr,
+ .callback = callback,
+ .data = data,
+ .retval = -ENOENT,
+ };
+
+ if (dwarf_diecu(or_die, &cu_die, NULL, NULL) == NULL)
+ return -ENOENT;
+
+ die_find_child(&cu_die, __die_walk_instances_cb, &iwp, &die_mem);
+
+ return iwp.retval;
+}
+
/* Line walker internal parameters */
struct __line_walk_param {
- const char *fname;
+ bool recursive;
line_walk_callback_t callback;
void *data;
int retval;
@@ -385,39 +544,56 @@ struct __line_walk_param {
static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data)
{
struct __line_walk_param *lw = data;
- Dwarf_Addr addr;
+ Dwarf_Addr addr = 0;
+ const char *fname;
int lineno;
if (dwarf_tag(in_die) == DW_TAG_inlined_subroutine) {
+ fname = die_get_call_file(in_die);
lineno = die_get_call_lineno(in_die);
- if (lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
- lw->retval = lw->callback(lw->fname, lineno, addr,
- lw->data);
+ if (fname && lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
+ lw->retval = lw->callback(fname, lineno, addr, lw->data);
if (lw->retval != 0)
return DIE_FIND_CB_END;
}
}
- return DIE_FIND_CB_SIBLING;
+ if (!lw->recursive)
+ /* Don't need to search recursively */
+ return DIE_FIND_CB_SIBLING;
+
+ if (addr) {
+ fname = dwarf_decl_file(in_die);
+ if (fname && dwarf_decl_line(in_die, &lineno) == 0) {
+ lw->retval = lw->callback(fname, lineno, addr, lw->data);
+ if (lw->retval != 0)
+ return DIE_FIND_CB_END;
+ }
+ }
+
+ /* Continue to search nested inlined function call-sites */
+ return DIE_FIND_CB_CONTINUE;
}
/* Walk on lines of blocks included in given DIE */
-static int __die_walk_funclines(Dwarf_Die *sp_die,
+static int __die_walk_funclines(Dwarf_Die *sp_die, bool recursive,
line_walk_callback_t callback, void *data)
{
struct __line_walk_param lw = {
+ .recursive = recursive,
.callback = callback,
.data = data,
.retval = 0,
};
Dwarf_Die die_mem;
Dwarf_Addr addr;
+ const char *fname;
int lineno;
/* Handle function declaration line */
- lw.fname = dwarf_decl_file(sp_die);
- if (lw.fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
+ fname = dwarf_decl_file(sp_die);
+ if (fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
dwarf_entrypc(sp_die, &addr) == 0) {
- lw.retval = callback(lw.fname, lineno, addr, data);
+ lw.retval = callback(fname, lineno, addr, data);
if (lw.retval != 0)
goto done;
}
@@ -430,7 +606,7 @@ static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
{
struct __line_walk_param *lw = data;
- lw->retval = __die_walk_funclines(sp_die, lw->callback, lw->data);
+ lw->retval = __die_walk_funclines(sp_die, true, lw->callback, lw->data);
if (lw->retval != 0)
return DWARF_CB_ABORT;
@@ -439,7 +615,7 @@ static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
/**
* die_walk_lines - Walk on lines inside given DIE
- * @rt_die: a root DIE (CU or subprogram)
+ * @rt_die: a root DIE (CU, subprogram or inlined_subroutine)
* @callback: callback routine
* @data: user data
*
@@ -460,12 +636,12 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
size_t nlines, i;
/* Get the CU die */
- if (dwarf_tag(rt_die) == DW_TAG_subprogram)
+ if (dwarf_tag(rt_die) != DW_TAG_compile_unit)
cu_die = dwarf_diecu(rt_die, &die_mem, NULL, NULL);
else
cu_die = rt_die;
if (!cu_die) {
- pr_debug2("Failed to get CU from subprogram\n");
+ pr_debug2("Failed to get CU from given DIE.\n");
return -EINVAL;
}
@@ -509,7 +685,11 @@ int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
* subroutines. We have to check functions list or given function.
*/
if (rt_die != cu_die)
- ret = __die_walk_funclines(rt_die, callback, data);
+ /*
+ * Don't need walk functions recursively, because nested
+ * inlined functions don't have lines of the specified DIE.
+ */
+ ret = __die_walk_funclines(rt_die, false, callback, data);
else {
struct __line_walk_param param = {
.callback = callback,
diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
index bc3b21167e7..6ce1717784b 100644
--- a/tools/perf/util/dwarf-aux.h
+++ b/tools/perf/util/dwarf-aux.h
@@ -34,12 +34,19 @@ extern const char *cu_get_comp_dir(Dwarf_Die *cu_die);
extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
const char **fname, int *lineno);
+/* Walk on funcitons at given address */
+extern int cu_walk_functions_at(Dwarf_Die *cu_die, Dwarf_Addr addr,
+ int (*callback)(Dwarf_Die *, void *), void *data);
+
/* Compare diename and tname */
extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
/* Get callsite line number of inline-function instance */
extern int die_get_call_lineno(Dwarf_Die *in_die);
+/* Get callsite file name of inlined function instance */
+extern const char *die_get_call_file(Dwarf_Die *in_die);
+
/* Get type die */
extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
@@ -73,6 +80,10 @@ extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
Dwarf_Die *die_mem);
+/* Walk on the instances of given DIE */
+extern int die_walk_instances(Dwarf_Die *in_die,
+ int (*callback)(Dwarf_Die *, void *), void *data);
+
/* Walker on lines (Note: line number will not be sorted) */
typedef int (* line_walk_callback_t) (const char *fname, int lineno,
Dwarf_Addr addr, void *data);
diff --git a/tools/perf/util/evlist.c b/tools/perf/util/evlist.c
index b021ea9265c..c12bd476c6f 100644
--- a/tools/perf/util/evlist.c
+++ b/tools/perf/util/evlist.c
@@ -85,10 +85,32 @@ int perf_evlist__add_default(struct perf_evlist *evlist)
struct perf_evsel *evsel = perf_evsel__new(&attr, 0);
if (evsel == NULL)
- return -ENOMEM;
+ goto error;
+
+ /* use strdup() because free(evsel) assumes name is allocated */
+ evsel->name = strdup("cycles");
+ if (!evsel->name)
+ goto error_free;
perf_evlist__add(evlist, evsel);
return 0;
+error_free:
+ perf_evsel__delete(evsel);
+error:
+ return -ENOMEM;
+}
+
+void perf_evlist__disable(struct perf_evlist *evlist)
+{
+ int cpu, thread;
+ struct perf_evsel *pos;
+
+ for (cpu = 0; cpu < evlist->cpus->nr; cpu++) {
+ list_for_each_entry(pos, &evlist->entries, node) {
+ for (thread = 0; thread < evlist->threads->nr; thread++)
+ ioctl(FD(pos, cpu, thread), PERF_EVENT_IOC_DISABLE);
+ }
+ }
}
int perf_evlist__alloc_pollfd(struct perf_evlist *evlist)
diff --git a/tools/perf/util/evlist.h b/tools/perf/util/evlist.h
index b2b862374f3..ce85ae9ae57 100644
--- a/tools/perf/util/evlist.h
+++ b/tools/perf/util/evlist.h
@@ -53,6 +53,8 @@ int perf_evlist__alloc_mmap(struct perf_evlist *evlist);
int perf_evlist__mmap(struct perf_evlist *evlist, int pages, bool overwrite);
void perf_evlist__munmap(struct perf_evlist *evlist);
+void perf_evlist__disable(struct perf_evlist *evlist);
+
static inline void perf_evlist__set_maps(struct perf_evlist *evlist,
struct cpu_map *cpus,
struct thread_map *threads)
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index cb2959a3fb4..b6c1ad123ca 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -189,8 +189,8 @@ int build_id_cache__add_s(const char *sbuild_id, const char *debugdir,
const char *name, bool is_kallsyms)
{
const size_t size = PATH_MAX;
- char *realname, *filename = malloc(size),
- *linkname = malloc(size), *targetname;
+ char *realname, *filename = zalloc(size),
+ *linkname = zalloc(size), *targetname;
int len, err = -1;
if (is_kallsyms) {
@@ -254,8 +254,8 @@ static int build_id_cache__add_b(const u8 *build_id, size_t build_id_size,
int build_id_cache__remove_s(const char *sbuild_id, const char *debugdir)
{
const size_t size = PATH_MAX;
- char *filename = malloc(size),
- *linkname = malloc(size);
+ char *filename = zalloc(size),
+ *linkname = zalloc(size);
int err = -1;
if (filename == NULL || linkname == NULL)
@@ -726,7 +726,16 @@ static int perf_header__read_build_ids_abi_quirk(struct perf_header *header,
return -1;
bev.header = old_bev.header;
- bev.pid = 0;
+
+ /*
+ * As the pid is the missing value, we need to fill
+ * it properly. The header.misc value give us nice hint.
+ */
+ bev.pid = HOST_KERNEL_ID;
+ if (bev.header.misc == PERF_RECORD_MISC_GUEST_USER ||
+ bev.header.misc == PERF_RECORD_MISC_GUEST_KERNEL)
+ bev.pid = DEFAULT_GUEST_KERNEL_ID;
+
memcpy(bev.build_id, old_bev.build_id, sizeof(bev.build_id));
__event_process_build_id(&bev, filename, session);
diff --git a/tools/perf/util/include/linux/compiler.h b/tools/perf/util/include/linux/compiler.h
index 791f9dd27eb..547628e97f3 100644
--- a/tools/perf/util/include/linux/compiler.h
+++ b/tools/perf/util/include/linux/compiler.h
@@ -5,7 +5,9 @@
#define __always_inline inline
#endif
#define __user
+#ifndef __attribute_const__
#define __attribute_const__
+#endif
#define __used __attribute__((__unused__))
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 4ea7e19f525..928918b796b 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -697,7 +697,11 @@ parse_raw_event(const char **strp, struct perf_event_attr *attr)
return EVT_FAILED;
n = hex2u64(str + 1, &config);
if (n > 0) {
- *strp = str + n + 1;
+ const char *end = str + n + 1;
+ if (*end != '\0' && *end != ',' && *end != ':')
+ return EVT_FAILED;
+
+ *strp = end;
attr->type = PERF_TYPE_RAW;
attr->config = config;
return EVT_HANDLED;
@@ -1097,6 +1101,4 @@ void print_events(const char *event_glob)
printf("\n");
print_tracepoint_events(NULL, NULL);
-
- exit(129);
}
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index b82d54fa2c5..1c7bfa5fe0a 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -1820,11 +1820,15 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
ret = -ENOMEM;
goto error;
}
- tev->point.module = strdup(module);
- if (tev->point.module == NULL) {
- ret = -ENOMEM;
- goto error;
+
+ if (module) {
+ tev->point.module = strdup(module);
+ if (tev->point.module == NULL) {
+ ret = -ENOMEM;
+ goto error;
+ }
}
+
tev->point.offset = pev->point.offset;
tev->point.retprobe = pev->point.retprobe;
tev->nargs = pev->nargs;
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 3e44a3e3651..555fc3864b9 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -612,12 +612,12 @@ static int convert_variable(Dwarf_Die *vr_die, struct probe_finder *pf)
return ret;
}
-/* Find a variable in a subprogram die */
-static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
+/* Find a variable in a scope DIE */
+static int find_variable(Dwarf_Die *sc_die, struct probe_finder *pf)
{
- Dwarf_Die vr_die, *scopes;
+ Dwarf_Die vr_die;
char buf[32], *ptr;
- int ret, nscopes;
+ int ret = 0;
if (!is_c_varname(pf->pvar->var)) {
/* Copy raw parameters */
@@ -652,30 +652,16 @@ static int find_variable(Dwarf_Die *sp_die, struct probe_finder *pf)
if (pf->tvar->name == NULL)
return -ENOMEM;
- pr_debug("Searching '%s' variable in context.\n",
- pf->pvar->var);
+ pr_debug("Searching '%s' variable in context.\n", pf->pvar->var);
/* Search child die for local variables and parameters. */
- if (die_find_variable_at(sp_die, pf->pvar->var, pf->addr, &vr_die))
- ret = convert_variable(&vr_die, pf);
- else {
- /* Search upper class */
- nscopes = dwarf_getscopes_die(sp_die, &scopes);
- while (nscopes-- > 1) {
- pr_debug("Searching variables in %s\n",
- dwarf_diename(&scopes[nscopes]));
- /* We should check this scope, so give dummy address */
- if (die_find_variable_at(&scopes[nscopes],
- pf->pvar->var, 0,
- &vr_die)) {
- ret = convert_variable(&vr_die, pf);
- goto found;
- }
- }
- if (scopes)
- free(scopes);
- ret = -ENOENT;
+ if (!die_find_variable_at(sc_die, pf->pvar->var, pf->addr, &vr_die)) {
+ /* Search again in global variables */
+ if (!die_find_variable_at(&pf->cu_die, pf->pvar->var, 0, &vr_die))
+ ret = -ENOENT;
}
-found:
+ if (ret == 0)
+ ret = convert_variable(&vr_die, pf);
+
if (ret < 0)
pr_warning("Failed to find '%s' in this function.\n",
pf->pvar->var);
@@ -718,26 +704,30 @@ static int convert_to_trace_point(Dwarf_Die *sp_die, Dwarf_Addr paddr,
return 0;
}
-/* Call probe_finder callback with real subprogram DIE */
-static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
+/* Call probe_finder callback with scope DIE */
+static int call_probe_finder(Dwarf_Die *sc_die, struct probe_finder *pf)
{
- Dwarf_Die die_mem;
Dwarf_Attribute fb_attr;
size_t nops;
int ret;
- /* If no real subprogram, find a real one */
- if (!sp_die || dwarf_tag(sp_die) != DW_TAG_subprogram) {
- sp_die = die_find_realfunc(&pf->cu_die, pf->addr, &die_mem);
- if (!sp_die) {
+ if (!sc_die) {
+ pr_err("Caller must pass a scope DIE. Program error.\n");
+ return -EINVAL;
+ }
+
+ /* If not a real subprogram, find a real one */
+ if (dwarf_tag(sc_die) != DW_TAG_subprogram) {
+ if (!die_find_realfunc(&pf->cu_die, pf->addr, &pf->sp_die)) {
pr_warning("Failed to find probe point in any "
"functions.\n");
return -ENOENT;
}
- }
+ } else
+ memcpy(&pf->sp_die, sc_die, sizeof(Dwarf_Die));
- /* Get the frame base attribute/ops */
- dwarf_attr(sp_die, DW_AT_frame_base, &fb_attr);
+ /* Get the frame base attribute/ops from subprogram */
+ dwarf_attr(&pf->sp_die, DW_AT_frame_base, &fb_attr);
ret = dwarf_getlocation_addr(&fb_attr, pf->addr, &pf->fb_ops, &nops, 1);
if (ret <= 0 || nops == 0) {
pf->fb_ops = NULL;
@@ -755,7 +745,7 @@ static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
}
/* Call finder's callback handler */
- ret = pf->callback(sp_die, pf);
+ ret = pf->callback(sc_die, pf);
/* *pf->fb_ops will be cached in libdw. Don't free it. */
pf->fb_ops = NULL;
@@ -763,17 +753,82 @@ static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
return ret;
}
+struct find_scope_param {
+ const char *function;
+ const char *file;
+ int line;
+ int diff;
+ Dwarf_Die *die_mem;
+ bool found;
+};
+
+static int find_best_scope_cb(Dwarf_Die *fn_die, void *data)
+{
+ struct find_scope_param *fsp = data;
+ const char *file;
+ int lno;
+
+ /* Skip if declared file name does not match */
+ if (fsp->file) {
+ file = dwarf_decl_file(fn_die);
+ if (!file || strcmp(fsp->file, file) != 0)
+ return 0;
+ }
+ /* If the function name is given, that's what user expects */
+ if (fsp->function) {
+ if (die_compare_name(fn_die, fsp->function)) {
+ memcpy(fsp->die_mem, fn_die, sizeof(Dwarf_Die));
+ fsp->found = true;
+ return 1;
+ }
+ } else {
+ /* With the line number, find the nearest declared DIE */
+ dwarf_decl_line(fn_die, &lno);
+ if (lno < fsp->line && fsp->diff > fsp->line - lno) {
+ /* Keep a candidate and continue */
+ fsp->diff = fsp->line - lno;
+ memcpy(fsp->die_mem, fn_die, sizeof(Dwarf_Die));
+ fsp->found = true;
+ }
+ }
+ return 0;
+}
+
+/* Find an appropriate scope fits to given conditions */
+static Dwarf_Die *find_best_scope(struct probe_finder *pf, Dwarf_Die *die_mem)
+{
+ struct find_scope_param fsp = {
+ .function = pf->pev->point.function,
+ .file = pf->fname,
+ .line = pf->lno,
+ .diff = INT_MAX,
+ .die_mem = die_mem,
+ .found = false,
+ };
+
+ cu_walk_functions_at(&pf->cu_die, pf->addr, find_best_scope_cb, &fsp);
+
+ return fsp.found ? die_mem : NULL;
+}
+
static int probe_point_line_walker(const char *fname, int lineno,
Dwarf_Addr addr, void *data)
{
struct probe_finder *pf = data;
+ Dwarf_Die *sc_die, die_mem;
int ret;
if (lineno != pf->lno || strtailcmp(fname, pf->fname) != 0)
return 0;
pf->addr = addr;
- ret = call_probe_finder(NULL, pf);
+ sc_die = find_best_scope(pf, &die_mem);
+ if (!sc_die) {
+ pr_warning("Failed to find scope of probe point.\n");
+ return -ENOENT;
+ }
+
+ ret = call_probe_finder(sc_die, pf);
/* Continue if no error, because the line will be in inline function */
return ret < 0 ? ret : 0;
@@ -827,6 +882,7 @@ static int probe_point_lazy_walker(const char *fname, int lineno,
Dwarf_Addr addr, void *data)
{
struct probe_finder *pf = data;
+ Dwarf_Die *sc_die, die_mem;
int ret;
if (!line_list__has_line(&pf->lcache, lineno) ||
@@ -836,7 +892,14 @@ static int probe_point_lazy_walker(const char *fname, int lineno,
pr_debug("Probe line found: line:%d addr:0x%llx\n",
lineno, (unsigned long long)addr);
pf->addr = addr;
- ret = call_probe_finder(NULL, pf);
+ pf->lno = lineno;
+ sc_die = find_best_scope(pf, &die_mem);
+ if (!sc_die) {
+ pr_warning("Failed to find scope of probe point.\n");
+ return -ENOENT;
+ }
+
+ ret = call_probe_finder(sc_die, pf);
/*
* Continue if no error, because the lazy pattern will match
@@ -861,42 +924,39 @@ static int find_probe_point_lazy(Dwarf_Die *sp_die, struct probe_finder *pf)
return die_walk_lines(sp_die, probe_point_lazy_walker, pf);
}
-/* Callback parameter with return value */
-struct dwarf_callback_param {
- void *data;
- int retval;
-};
-
static int probe_point_inline_cb(Dwarf_Die *in_die, void *data)
{
- struct dwarf_callback_param *param = data;
- struct probe_finder *pf = param->data;
+ struct probe_finder *pf = data;
struct perf_probe_point *pp = &pf->pev->point;
Dwarf_Addr addr;
+ int ret;
if (pp->lazy_line)
- param->retval = find_probe_point_lazy(in_die, pf);
+ ret = find_probe_point_lazy(in_die, pf);
else {
/* Get probe address */
if (dwarf_entrypc(in_die, &addr) != 0) {
pr_warning("Failed to get entry address of %s.\n",
dwarf_diename(in_die));
- param->retval = -ENOENT;
- return DWARF_CB_ABORT;
+ return -ENOENT;
}
pf->addr = addr;
pf->addr += pp->offset;
pr_debug("found inline addr: 0x%jx\n",
(uintmax_t)pf->addr);
- param->retval = call_probe_finder(in_die, pf);
- if (param->retval < 0)
- return DWARF_CB_ABORT;
+ ret = call_probe_finder(in_die, pf);
}
- return DWARF_CB_OK;
+ return ret;
}
+/* Callback parameter with return value for libdw */
+struct dwarf_callback_param {
+ void *data;
+ int retval;
+};
+
/* Search function from function name */
static int probe_point_search_cb(Dwarf_Die *sp_die, void *data)
{
@@ -933,14 +993,10 @@ static int probe_point_search_cb(Dwarf_Die *sp_die, void *data)
/* TODO: Check the address in this function */
param->retval = call_probe_finder(sp_die, pf);
}
- } else {
- struct dwarf_callback_param _param = {.data = (void *)pf,
- .retval = 0};
+ } else
/* Inlined function: search instances */
- dwarf_func_inline_instances(sp_die, probe_point_inline_cb,
- &_param);
- param->retval = _param.retval;
- }
+ param->retval = die_walk_instances(sp_die,
+ probe_point_inline_cb, (void *)pf);
return DWARF_CB_ABORT; /* Exit; no same symbol in this CU. */
}
@@ -1060,7 +1116,7 @@ found:
}
/* Add a found probe point into trace event list */
-static int add_probe_trace_event(Dwarf_Die *sp_die, struct probe_finder *pf)
+static int add_probe_trace_event(Dwarf_Die *sc_die, struct probe_finder *pf)
{
struct trace_event_finder *tf =
container_of(pf, struct trace_event_finder, pf);
@@ -1075,8 +1131,9 @@ static int add_probe_trace_event(Dwarf_Die *sp_die, struct probe_finder *pf)
}
tev = &tf->tevs[tf->ntevs++];
- ret = convert_to_trace_point(sp_die, pf->addr, pf->pev->point.retprobe,
- &tev->point);
+ /* Trace point should be converted from subprogram DIE */
+ ret = convert_to_trace_point(&pf->sp_die, pf->addr,
+ pf->pev->point.retprobe, &tev->point);
if (ret < 0)
return ret;
@@ -1091,7 +1148,8 @@ static int add_probe_trace_event(Dwarf_Die *sp_die, struct probe_finder *pf)
for (i = 0; i < pf->pev->nargs; i++) {
pf->pvar = &pf->pev->args[i];
pf->tvar = &tev->args[i];
- ret = find_variable(sp_die, pf);
+ /* Variable should be found from scope DIE */
+ ret = find_variable(sc_die, pf);
if (ret != 0)
return ret;
}
@@ -1159,13 +1217,13 @@ static int collect_variables_cb(Dwarf_Die *die_mem, void *data)
}
/* Add a found vars into available variables list */
-static int add_available_vars(Dwarf_Die *sp_die, struct probe_finder *pf)
+static int add_available_vars(Dwarf_Die *sc_die, struct probe_finder *pf)
{
struct available_var_finder *af =
container_of(pf, struct available_var_finder, pf);
struct variable_list *vl;
- Dwarf_Die die_mem, *scopes = NULL;
- int ret, nscopes;
+ Dwarf_Die die_mem;
+ int ret;
/* Check number of tevs */
if (af->nvls == af->max_vls) {
@@ -1174,8 +1232,9 @@ static int add_available_vars(Dwarf_Die *sp_die, struct probe_finder *pf)
}
vl = &af->vls[af->nvls++];
- ret = convert_to_trace_point(sp_die, pf->addr, pf->pev->point.retprobe,
- &vl->point);
+ /* Trace point should be converted from subprogram DIE */
+ ret = convert_to_trace_point(&pf->sp_die, pf->addr,
+ pf->pev->point.retprobe, &vl->point);
if (ret < 0)
return ret;
@@ -1187,19 +1246,14 @@ static int add_available_vars(Dwarf_Die *sp_die, struct probe_finder *pf)
if (vl->vars == NULL)
return -ENOMEM;
af->child = true;
- die_find_child(sp_die, collect_variables_cb, (void *)af, &die_mem);
+ die_find_child(sc_die, collect_variables_cb, (void *)af, &die_mem);
/* Find external variables */
if (!af->externs)
goto out;
/* Don't need to search child DIE for externs. */
af->child = false;
- nscopes = dwarf_getscopes_die(sp_die, &scopes);
- while (nscopes-- > 1)
- die_find_child(&scopes[nscopes], collect_variables_cb,
- (void *)af, &die_mem);
- if (scopes)
- free(scopes);
+ die_find_child(&pf->cu_die, collect_variables_cb, (void *)af, &die_mem);
out:
if (strlist__empty(vl->vars)) {
@@ -1391,10 +1445,14 @@ static int find_line_range_by_line(Dwarf_Die *sp_die, struct line_finder *lf)
static int line_range_inline_cb(Dwarf_Die *in_die, void *data)
{
- struct dwarf_callback_param *param = data;
+ find_line_range_by_line(in_die, data);
- param->retval = find_line_range_by_line(in_die, param->data);
- return DWARF_CB_ABORT; /* No need to find other instances */
+ /*
+ * We have to check all instances of inlined function, because
+ * some execution paths can be optimized out depends on the
+ * function argument of instances
+ */
+ return 0;
}
/* Search function from function name */
@@ -1422,15 +1480,10 @@ static int line_range_search_cb(Dwarf_Die *sp_die, void *data)
pr_debug("New line range: %d to %d\n", lf->lno_s, lf->lno_e);
lr->start = lf->lno_s;
lr->end = lf->lno_e;
- if (dwarf_func_inline(sp_die)) {
- struct dwarf_callback_param _param;
- _param.data = (void *)lf;
- _param.retval = 0;
- dwarf_func_inline_instances(sp_die,
- line_range_inline_cb,
- &_param);
- param->retval = _param.retval;
- } else
+ if (dwarf_func_inline(sp_die))
+ param->retval = die_walk_instances(sp_die,
+ line_range_inline_cb, lf);
+ else
param->retval = find_line_range_by_line(sp_die, lf);
return DWARF_CB_ABORT;
}
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index c478b42a247..1132c8f0ce8 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -57,7 +57,7 @@ struct probe_finder {
struct perf_probe_event *pev; /* Target probe event */
/* Callback when a probe point is found */
- int (*callback)(Dwarf_Die *sp_die, struct probe_finder *pf);
+ int (*callback)(Dwarf_Die *sc_die, struct probe_finder *pf);
/* For function searching */
int lno; /* Line number */
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index 8e0b5a39d8a..cbc8f215d4b 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -187,16 +187,119 @@ static PyTypeObject pyrf_throttle_event__type = {
.tp_repr = (reprfunc)pyrf_throttle_event__repr,
};
+static char pyrf_lost_event__doc[] = PyDoc_STR("perf lost event object.");
+
+static PyMemberDef pyrf_lost_event__members[] = {
+ sample_members
+ member_def(lost_event, id, T_ULONGLONG, "event id"),
+ member_def(lost_event, lost, T_ULONGLONG, "number of lost events"),
+ { .name = NULL, },
+};
+
+static PyObject *pyrf_lost_event__repr(struct pyrf_event *pevent)
+{
+ PyObject *ret;
+ char *s;
+
+ if (asprintf(&s, "{ type: lost, id: %#" PRIx64 ", "
+ "lost: %#" PRIx64 " }",
+ pevent->event.lost.id, pevent->event.lost.lost) < 0) {
+ ret = PyErr_NoMemory();
+ } else {
+ ret = PyString_FromString(s);
+ free(s);
+ }
+ return ret;
+}
+
+static PyTypeObject pyrf_lost_event__type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ .tp_name = "perf.lost_event",
+ .tp_basicsize = sizeof(struct pyrf_event),
+ .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
+ .tp_doc = pyrf_lost_event__doc,
+ .tp_members = pyrf_lost_event__members,
+ .tp_repr = (reprfunc)pyrf_lost_event__repr,
+};
+
+static char pyrf_read_event__doc[] = PyDoc_STR("perf read event object.");
+
+static PyMemberDef pyrf_read_event__members[] = {
+ sample_members
+ member_def(read_event, pid, T_UINT, "event pid"),
+ member_def(read_event, tid, T_UINT, "event tid"),
+ { .name = NULL, },
+};
+
+static PyObject *pyrf_read_event__repr(struct pyrf_event *pevent)
+{
+ return PyString_FromFormat("{ type: read, pid: %u, tid: %u }",
+ pevent->event.read.pid,
+ pevent->event.read.tid);
+ /*
+ * FIXME: return the array of read values,
+ * making this method useful ;-)
+ */
+}
+
+static PyTypeObject pyrf_read_event__type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ .tp_name = "perf.read_event",
+ .tp_basicsize = sizeof(struct pyrf_event),
+ .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
+ .tp_doc = pyrf_read_event__doc,
+ .tp_members = pyrf_read_event__members,
+ .tp_repr = (reprfunc)pyrf_read_event__repr,
+};
+
+static char pyrf_sample_event__doc[] = PyDoc_STR("perf sample event object.");
+
+static PyMemberDef pyrf_sample_event__members[] = {
+ sample_members
+ member_def(perf_event_header, type, T_UINT, "event type"),
+ { .name = NULL, },
+};
+
+static PyObject *pyrf_sample_event__repr(struct pyrf_event *pevent)
+{
+ PyObject *ret;
+ char *s;
+
+ if (asprintf(&s, "{ type: sample }") < 0) {
+ ret = PyErr_NoMemory();
+ } else {
+ ret = PyString_FromString(s);
+ free(s);
+ }
+ return ret;
+}
+
+static PyTypeObject pyrf_sample_event__type = {
+ PyVarObject_HEAD_INIT(NULL, 0)
+ .tp_name = "perf.sample_event",
+ .tp_basicsize = sizeof(struct pyrf_event),
+ .tp_flags = Py_TPFLAGS_DEFAULT|Py_TPFLAGS_BASETYPE,
+ .tp_doc = pyrf_sample_event__doc,
+ .tp_members = pyrf_sample_event__members,
+ .tp_repr = (reprfunc)pyrf_sample_event__repr,
+};
+
static int pyrf_event__setup_types(void)
{
int err;
pyrf_mmap_event__type.tp_new =
pyrf_task_event__type.tp_new =
pyrf_comm_event__type.tp_new =
+ pyrf_lost_event__type.tp_new =
+ pyrf_read_event__type.tp_new =
+ pyrf_sample_event__type.tp_new =
pyrf_throttle_event__type.tp_new = PyType_GenericNew;
err = PyType_Ready(&pyrf_mmap_event__type);
if (err < 0)
goto out;
+ err = PyType_Ready(&pyrf_lost_event__type);
+ if (err < 0)
+ goto out;
err = PyType_Ready(&pyrf_task_event__type);
if (err < 0)
goto out;
@@ -206,20 +309,26 @@ static int pyrf_event__setup_types(void)
err = PyType_Ready(&pyrf_throttle_event__type);
if (err < 0)
goto out;
+ err = PyType_Ready(&pyrf_read_event__type);
+ if (err < 0)
+ goto out;
+ err = PyType_Ready(&pyrf_sample_event__type);
+ if (err < 0)
+ goto out;
out:
return err;
}
static PyTypeObject *pyrf_event__type[] = {
[PERF_RECORD_MMAP] = &pyrf_mmap_event__type,
- [PERF_RECORD_LOST] = &pyrf_mmap_event__type,
+ [PERF_RECORD_LOST] = &pyrf_lost_event__type,
[PERF_RECORD_COMM] = &pyrf_comm_event__type,
[PERF_RECORD_EXIT] = &pyrf_task_event__type,
[PERF_RECORD_THROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_UNTHROTTLE] = &pyrf_throttle_event__type,
[PERF_RECORD_FORK] = &pyrf_task_event__type,
- [PERF_RECORD_READ] = &pyrf_mmap_event__type,
- [PERF_RECORD_SAMPLE] = &pyrf_mmap_event__type,
+ [PERF_RECORD_READ] = &pyrf_read_event__type,
+ [PERF_RECORD_SAMPLE] = &pyrf_sample_event__type,
};
static PyObject *pyrf_event__new(union perf_event *event)
diff --git a/tools/perf/util/setup.py b/tools/perf/util/setup.py
index bbc982f5dd8..95d37007492 100644
--- a/tools/perf/util/setup.py
+++ b/tools/perf/util/setup.py
@@ -3,9 +3,27 @@
from distutils.core import setup, Extension
from os import getenv
+from distutils.command.build_ext import build_ext as _build_ext
+from distutils.command.install_lib import install_lib as _install_lib
+
+class build_ext(_build_ext):
+ def finalize_options(self):
+ _build_ext.finalize_options(self)
+ self.build_lib = build_lib
+ self.build_temp = build_tmp
+
+class install_lib(_install_lib):
+ def finalize_options(self):
+ _install_lib.finalize_options(self)
+ self.build_dir = build_lib
+
+
cflags = ['-fno-strict-aliasing', '-Wno-write-strings']
cflags += getenv('CFLAGS', '').split()
+build_lib = getenv('PYTHON_EXTBUILD_LIB')
+build_tmp = getenv('PYTHON_EXTBUILD_TMP')
+
perf = Extension('perf',
sources = ['util/python.c', 'util/ctype.c', 'util/evlist.c',
'util/evsel.c', 'util/cpumap.c', 'util/thread_map.c',
@@ -21,4 +39,5 @@ setup(name='perf',
author_email='acme@redhat.com',
license='GPLv2',
url='http://perf.wiki.kernel.org',
- ext_modules=[perf])
+ ext_modules=[perf],
+ cmdclass={'build_ext': build_ext, 'install_lib': install_lib})
diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c
index eec196329fd..469c0264ed2 100644
--- a/tools/perf/util/symbol.c
+++ b/tools/perf/util/symbol.c
@@ -1504,6 +1504,17 @@ int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter)
dso->adjust_symbols = 0;
if (strncmp(dso->name, "/tmp/perf-", 10) == 0) {
+ struct stat st;
+
+ if (lstat(dso->name, &st) < 0)
+ return -1;
+
+ if (st.st_uid && (st.st_uid != geteuid())) {
+ pr_warning("File %s not owned by current user or root, "
+ "ignoring it.\n", dso->name);
+ return -1;
+ }
+
ret = dso__load_perf_map(dso, map, filter);
dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT :
SYMTAB__NOT_FOUND;
@@ -2170,27 +2181,22 @@ size_t machines__fprintf_dsos_buildid(struct rb_root *machines,
return ret;
}
-struct dso *dso__new_kernel(const char *name)
+static struct dso*
+dso__kernel_findnew(struct machine *machine, const char *name,
+ const char *short_name, int dso_type)
{
- struct dso *dso = dso__new(name ?: "[kernel.kallsyms]");
-
- if (dso != NULL) {
- dso__set_short_name(dso, "[kernel]");
- dso->kernel = DSO_TYPE_KERNEL;
- }
-
- return dso;
-}
+ /*
+ * The kernel dso could be created by build_id processing.
+ */
+ struct dso *dso = __dsos__findnew(&machine->kernel_dsos, name);
-static struct dso *dso__new_guest_kernel(struct machine *machine,
- const char *name)
-{
- char bf[PATH_MAX];
- struct dso *dso = dso__new(name ?: machine__mmap_name(machine, bf,
- sizeof(bf)));
+ /*
+ * We need to run this in all cases, since during the build_id
+ * processing we had no idea this was the kernel dso.
+ */
if (dso != NULL) {
- dso__set_short_name(dso, "[guest.kernel]");
- dso->kernel = DSO_TYPE_GUEST_KERNEL;
+ dso__set_short_name(dso, short_name);
+ dso->kernel = dso_type;
}
return dso;
@@ -2208,24 +2214,36 @@ void dso__read_running_kernel_build_id(struct dso *dso, struct machine *machine)
dso->has_build_id = true;
}
-static struct dso *machine__create_kernel(struct machine *machine)
+static struct dso *machine__get_kernel(struct machine *machine)
{
const char *vmlinux_name = NULL;
struct dso *kernel;
if (machine__is_host(machine)) {
vmlinux_name = symbol_conf.vmlinux_name;
- kernel = dso__new_kernel(vmlinux_name);
+ if (!vmlinux_name)
+ vmlinux_name = "[kernel.kallsyms]";
+
+ kernel = dso__kernel_findnew(machine, vmlinux_name,
+ "[kernel]",
+ DSO_TYPE_KERNEL);
} else {
+ char bf[PATH_MAX];
+
if (machine__is_default_guest(machine))
vmlinux_name = symbol_conf.default_guest_vmlinux_name;
- kernel = dso__new_guest_kernel(machine, vmlinux_name);
+ if (!vmlinux_name)
+ vmlinux_name = machine__mmap_name(machine, bf,
+ sizeof(bf));
+
+ kernel = dso__kernel_findnew(machine, vmlinux_name,
+ "[guest.kernel]",
+ DSO_TYPE_GUEST_KERNEL);
}
- if (kernel != NULL) {
+ if (kernel != NULL && (!kernel->has_build_id))
dso__read_running_kernel_build_id(kernel, machine);
- dsos__add(&machine->kernel_dsos, kernel);
- }
+
return kernel;
}
@@ -2329,7 +2347,7 @@ void machine__destroy_kernel_maps(struct machine *machine)
int machine__create_kernel_maps(struct machine *machine)
{
- struct dso *kernel = machine__create_kernel(machine);
+ struct dso *kernel = machine__get_kernel(machine);
if (kernel == NULL ||
__machine__create_kernel_maps(machine, kernel) < 0)
diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h
index 325ee36a9d2..4f377d92e75 100644
--- a/tools/perf/util/symbol.h
+++ b/tools/perf/util/symbol.h
@@ -155,7 +155,6 @@ struct dso {
};
struct dso *dso__new(const char *name);
-struct dso *dso__new_kernel(const char *name);
void dso__delete(struct dso *dso);
int dso__name_len(const struct dso *dso);
diff --git a/tools/perf/util/ui/browsers/top.c b/tools/perf/util/ui/browsers/top.c
index 5a06538532a..88403cf8396 100644
--- a/tools/perf/util/ui/browsers/top.c
+++ b/tools/perf/util/ui/browsers/top.c
@@ -208,6 +208,5 @@ int perf_top__tui_browser(struct perf_top *top)
},
};
- ui_helpline__push("Press <- or ESC to exit");
return perf_top_browser__run(&browser);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-28 19:00:46 +0000