Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index 739c441..0ef5cfe 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -377,9 +377,9 @@
LIB_H += util/include/linux/string.h
LIB_H += util/include/linux/types.h
LIB_H += util/include/asm/asm-offsets.h
-LIB_H += util/include/asm/bitops.h
LIB_H += util/include/asm/bug.h
LIB_H += util/include/asm/byteorder.h
+LIB_H += util/include/asm/hweight.h
LIB_H += util/include/asm/swab.h
LIB_H += util/include/asm/system.h
LIB_H += util/include/asm/uaccess.h
@@ -435,7 +435,6 @@
LIB_OBJS += $(OUTPUT)util/rbtree.o
LIB_OBJS += $(OUTPUT)util/bitmap.o
LIB_OBJS += $(OUTPUT)util/hweight.o
-LIB_OBJS += $(OUTPUT)util/find_next_bit.o
LIB_OBJS += $(OUTPUT)util/run-command.o
LIB_OBJS += $(OUTPUT)util/quote.o
LIB_OBJS += $(OUTPUT)util/strbuf.o
@@ -491,6 +490,7 @@
BUILTIN_OBJS += $(OUTPUT)builtin-lock.o
BUILTIN_OBJS += $(OUTPUT)builtin-kvm.o
BUILTIN_OBJS += $(OUTPUT)builtin-test.o
+BUILTIN_OBJS += $(OUTPUT)builtin-inject.o
PERFLIBS = $(LIB_FILE)
@@ -948,19 +948,6 @@
$(OUTPUT)util/rbtree.o: ../../lib/rbtree.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-# some perf warning policies can't fit to lib/bitmap.c, eg: it warns about variable shadowing
-# from <string.h> that comes from kernel headers wrapping.
-KBITMAP_FLAGS=`echo $(ALL_CFLAGS) | sed s/-Wshadow// | sed s/-Wswitch-default// | sed s/-Wextra//`
-
-$(OUTPUT)util/bitmap.o: ../../lib/bitmap.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(KBITMAP_FLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-
-$(OUTPUT)util/hweight.o: ../../lib/hweight.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-
-$(OUTPUT)util/find_next_bit.o: ../../lib/find_next_bit.c $(OUTPUT)PERF-CFLAGS
- $(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) -DETC_PERFCONFIG='"$(ETC_PERFCONFIG_SQ)"' $<
-
$(OUTPUT)util/scripting-engines/trace-event-perl.o: util/scripting-engines/trace-event-perl.c $(OUTPUT)PERF-CFLAGS
$(QUIET_CC)$(CC) -o $@ -c $(ALL_CFLAGS) $(PERL_EMBED_CCOPTS) -Wno-redundant-decls -Wno-strict-prototypes -Wno-unused-parameter -Wno-shadow $<
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index b57dbcf..ee154b5 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -554,7 +554,7 @@
int ret;
struct perf_session *session;
- session = perf_session__new(input_name, O_RDONLY, force);
+ session = perf_session__new(input_name, O_RDONLY, force, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-buildid-list.c b/tools/perf/builtin-buildid-list.c
index 7dc3b2e..44a47e1 100644
--- a/tools/perf/builtin-buildid-list.c
+++ b/tools/perf/builtin-buildid-list.c
@@ -39,7 +39,7 @@
int err = -1;
struct perf_session *session;
- session = perf_session__new(input_name, O_RDONLY, force);
+ session = perf_session__new(input_name, O_RDONLY, force, false);
if (session == NULL)
return -1;
diff --git a/tools/perf/builtin-diff.c b/tools/perf/builtin-diff.c
index 207e860..4cce68f 100644
--- a/tools/perf/builtin-diff.c
+++ b/tools/perf/builtin-diff.c
@@ -156,8 +156,8 @@
int ret, i;
struct perf_session *session[2];
- session[0] = perf_session__new(input_old, O_RDONLY, force);
- session[1] = perf_session__new(input_new, O_RDONLY, force);
+ session[0] = perf_session__new(input_old, O_RDONLY, force, false);
+ session[1] = perf_session__new(input_new, O_RDONLY, force, false);
if (session[0] == NULL || session[1] == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-inject.c b/tools/perf/builtin-inject.c
new file mode 100644
index 0000000..59e981a
--- /dev/null
+++ b/tools/perf/builtin-inject.c
@@ -0,0 +1,228 @@
+/*
+ * builtin-inject.c
+ *
+ * Builtin inject command: Examine the live mode (stdin) event stream
+ * and repipe it to stdout while optionally injecting additional
+ * events into it.
+ */
+#include "builtin.h"
+
+#include "perf.h"
+#include "util/session.h"
+#include "util/debug.h"
+
+#include "util/parse-options.h"
+
+static char const *input_name = "-";
+static bool inject_build_ids;
+
+static int event__repipe(event_t *event __used,
+ struct perf_session *session __used)
+{
+ uint32_t size;
+ void *buf = event;
+
+ size = event->header.size;
+
+ while (size) {
+ int ret = write(STDOUT_FILENO, buf, size);
+ if (ret < 0)
+ return -errno;
+
+ size -= ret;
+ buf += ret;
+ }
+
+ return 0;
+}
+
+static int event__repipe_mmap(event_t *self, struct perf_session *session)
+{
+ int err;
+
+ err = event__process_mmap(self, session);
+ event__repipe(self, session);
+
+ return err;
+}
+
+static int event__repipe_task(event_t *self, struct perf_session *session)
+{
+ int err;
+
+ err = event__process_task(self, session);
+ event__repipe(self, session);
+
+ return err;
+}
+
+static int event__repipe_tracing_data(event_t *self,
+ struct perf_session *session)
+{
+ int err;
+
+ event__repipe(self, session);
+ err = event__process_tracing_data(self, session);
+
+ return err;
+}
+
+static int dso__read_build_id(struct dso *self)
+{
+ if (self->has_build_id)
+ return 0;
+
+ if (filename__read_build_id(self->long_name, self->build_id,
+ sizeof(self->build_id)) > 0) {
+ self->has_build_id = true;
+ return 0;
+ }
+
+ return -1;
+}
+
+static int dso__inject_build_id(struct dso *self, struct perf_session *session)
+{
+ u16 misc = PERF_RECORD_MISC_USER;
+ struct machine *machine;
+ int err;
+
+ if (dso__read_build_id(self) < 0) {
+ pr_debug("no build_id found for %s\n", self->long_name);
+ return -1;
+ }
+
+ machine = perf_session__find_host_machine(session);
+ if (machine == NULL) {
+ pr_err("Can't find machine for session\n");
+ return -1;
+ }
+
+ if (self->kernel)
+ misc = PERF_RECORD_MISC_KERNEL;
+
+ err = event__synthesize_build_id(self, misc, event__repipe,
+ machine, session);
+ if (err) {
+ pr_err("Can't synthesize build_id event for %s\n", self->long_name);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int event__inject_buildid(event_t *event, struct perf_session *session)
+{
+ struct addr_location al;
+ struct thread *thread;
+ u8 cpumode;
+
+ cpumode = event->header.misc & PERF_RECORD_MISC_CPUMODE_MASK;
+
+ thread = perf_session__findnew(session, event->ip.pid);
+ if (thread == NULL) {
+ pr_err("problem processing %d event, skipping it.\n",
+ event->header.type);
+ goto repipe;
+ }
+
+ thread__find_addr_map(thread, session, cpumode, MAP__FUNCTION,
+ event->ip.pid, event->ip.ip, &al);
+
+ if (al.map != NULL) {
+ if (!al.map->dso->hit) {
+ al.map->dso->hit = 1;
+ if (map__load(al.map, NULL) >= 0) {
+ dso__inject_build_id(al.map->dso, session);
+ /*
+ * If this fails, too bad, let the other side
+ * account this as unresolved.
+ */
+ } else
+ pr_warning("no symbols found in %s, maybe "
+ "install a debug package?\n",
+ al.map->dso->long_name);
+ }
+ }
+
+repipe:
+ event__repipe(event, session);
+ return 0;
+}
+
+struct perf_event_ops inject_ops = {
+ .sample = event__repipe,
+ .mmap = event__repipe,
+ .comm = event__repipe,
+ .fork = event__repipe,
+ .exit = event__repipe,
+ .lost = event__repipe,
+ .read = event__repipe,
+ .throttle = event__repipe,
+ .unthrottle = event__repipe,
+ .attr = event__repipe,
+ .event_type = event__repipe,
+ .tracing_data = event__repipe,
+ .build_id = event__repipe,
+};
+
+extern volatile int session_done;
+
+static void sig_handler(int sig __attribute__((__unused__)))
+{
+ session_done = 1;
+}
+
+static int __cmd_inject(void)
+{
+ struct perf_session *session;
+ int ret = -EINVAL;
+
+ signal(SIGINT, sig_handler);
+
+ if (inject_build_ids) {
+ inject_ops.sample = event__inject_buildid;
+ inject_ops.mmap = event__repipe_mmap;
+ inject_ops.fork = event__repipe_task;
+ inject_ops.tracing_data = event__repipe_tracing_data;
+ }
+
+ session = perf_session__new(input_name, O_RDONLY, false, true);
+ if (session == NULL)
+ return -ENOMEM;
+
+ ret = perf_session__process_events(session, &inject_ops);
+
+ perf_session__delete(session);
+
+ return ret;
+}
+
+static const char * const report_usage[] = {
+ "perf inject [<options>]",
+ NULL
+};
+
+static const struct option options[] = {
+ OPT_BOOLEAN('b', "inject build-ids", &inject_build_ids,
+ "Inject build-ids into the output stream"),
+ OPT_INCR('v', "verbose", &verbose,
+ "be more verbose (show build ids, etc)"),
+ OPT_END()
+};
+
+int cmd_inject(int argc, const char **argv, const char *prefix __used)
+{
+ argc = parse_options(argc, argv, options, report_usage, 0);
+
+ /*
+ * Any (unrecognized) arguments left?
+ */
+ if (argc)
+ usage_with_options(report_usage, options);
+
+ if (symbol__init() < 0)
+ return -1;
+
+ return __cmd_inject();
+}
diff --git a/tools/perf/builtin-kmem.c b/tools/perf/builtin-kmem.c
index ee05dba..31f60a2 100644
--- a/tools/perf/builtin-kmem.c
+++ b/tools/perf/builtin-kmem.c
@@ -492,7 +492,7 @@
static int __cmd_kmem(void)
{
int err = -EINVAL;
- struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-lock.c b/tools/perf/builtin-lock.c
index ce27675..6605000 100644
--- a/tools/perf/builtin-lock.c
+++ b/tools/perf/builtin-lock.c
@@ -818,7 +818,7 @@
static int read_events(void)
{
- session = perf_session__new(input_name, O_RDONLY, 0);
+ session = perf_session__new(input_name, O_RDONLY, 0, false);
if (!session)
die("Initializing perf session failed\n");
diff --git a/tools/perf/builtin-record.c b/tools/perf/builtin-record.c
index 83b308a..ac989e9 100644
--- a/tools/perf/builtin-record.c
+++ b/tools/perf/builtin-record.c
@@ -446,13 +446,6 @@
process_buildids();
perf_header__write(&session->header, output, true);
- } else {
- int err;
-
- err = event__synthesize_build_ids(process_synthesized_event,
- session);
- if (err < 0)
- pr_err("Couldn't synthesize build ids.\n");
}
}
@@ -555,7 +548,7 @@
}
session = perf_session__new(output_name, O_WRONLY,
- write_mode == WRITE_FORCE);
+ write_mode == WRITE_FORCE, false);
if (session == NULL) {
pr_err("Not enough memory for reading perf file header\n");
return -1;
@@ -673,12 +666,15 @@
nr_counters,
process_synthesized_event,
session);
- if (err <= 0) {
- pr_err("Couldn't record tracing data.\n");
- return err;
- }
-
- advance_output(err);
+ /*
+ * FIXME err <= 0 here actually means that there were no tracepoints
+ * so its not really an error, just that we don't need to synthesize
+ * anything.
+ * We really have to return this more properly and also propagate
+ * errors that now are calling die()
+ */
+ if (err > 0)
+ advance_output(err);
}
machine = perf_session__find_host_machine(session);
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index f1b46eb..0152b54 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -289,7 +289,7 @@
signal(SIGINT, sig_handler);
- session = perf_session__new(input_name, O_RDONLY, force);
+ session = perf_session__new(input_name, O_RDONLY, force, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-sched.c b/tools/perf/builtin-sched.c
index 94453f1..aef6ed0 100644
--- a/tools/perf/builtin-sched.c
+++ b/tools/perf/builtin-sched.c
@@ -1660,7 +1660,7 @@
static int read_events(void)
{
int err = -EINVAL;
- struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-timechart.c b/tools/perf/builtin-timechart.c
index c35aa44..5a52ed9 100644
--- a/tools/perf/builtin-timechart.c
+++ b/tools/perf/builtin-timechart.c
@@ -936,7 +936,7 @@
static int __cmd_timechart(void)
{
- struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0);
+ struct perf_session *session = perf_session__new(input_name, O_RDONLY, 0, false);
int ret = -EINVAL;
if (session == NULL)
diff --git a/tools/perf/builtin-top.c b/tools/perf/builtin-top.c
index d95281f..3de3977 100644
--- a/tools/perf/builtin-top.c
+++ b/tools/perf/builtin-top.c
@@ -1287,7 +1287,7 @@
* FIXME: perf_session__new should allow passing a O_MMAP, so that all this
* mmap reading, etc is encapsulated in it. Use O_WRONLY for now.
*/
- struct perf_session *session = perf_session__new(NULL, O_WRONLY, false);
+ struct perf_session *session = perf_session__new(NULL, O_WRONLY, false, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index 77f556f..9c483e9 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -661,7 +661,7 @@
if (!script_name)
setup_pager();
- session = perf_session__new(input_name, O_RDONLY, 0);
+ session = perf_session__new(input_name, O_RDONLY, 0, false);
if (session == NULL)
return -ENOMEM;
diff --git a/tools/perf/builtin.h b/tools/perf/builtin.h
index 34a8a9a..921245b 100644
--- a/tools/perf/builtin.h
+++ b/tools/perf/builtin.h
@@ -34,5 +34,6 @@
extern int cmd_lock(int argc, const char **argv, const char *prefix);
extern int cmd_kvm(int argc, const char **argv, const char *prefix);
extern int cmd_test(int argc, const char **argv, const char *prefix);
+extern int cmd_inject(int argc, const char **argv, const char *prefix);
#endif
diff --git a/tools/perf/perf.c b/tools/perf/perf.c
index 5ff9b5b..08e0e5d 100644
--- a/tools/perf/perf.c
+++ b/tools/perf/perf.c
@@ -309,6 +309,7 @@
{ "lock", cmd_lock, 0 },
{ "kvm", cmd_kvm, 0 },
{ "test", cmd_test, 0 },
+ { "inject", cmd_inject, 0 },
};
unsigned int i;
static const char ext[] = STRIP_EXTENSION;
diff --git a/tools/perf/util/bitmap.c b/tools/perf/util/bitmap.c
new file mode 100644
index 0000000..5e230ac
--- /dev/null
+++ b/tools/perf/util/bitmap.c
@@ -0,0 +1,21 @@
+/*
+ * From lib/bitmap.c
+ * Helper functions for bitmap.h.
+ *
+ * This source code is licensed under the GNU General Public License,
+ * Version 2. See the file COPYING for more details.
+ */
+#include <linux/bitmap.h>
+
+int __bitmap_weight(const unsigned long *bitmap, int bits)
+{
+ int k, w = 0, lim = bits/BITS_PER_LONG;
+
+ for (k = 0; k < lim; k++)
+ w += hweight_long(bitmap[k]);
+
+ if (bits % BITS_PER_LONG)
+ w += hweight_long(bitmap[k] & BITMAP_LAST_WORD_MASK(bits));
+
+ return w;
+}
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 6227dc4..79da0e5 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -713,10 +713,18 @@
dso = __dsos__findnew(head, filename);
if (dso != NULL) {
+ char sbuild_id[BUILD_ID_SIZE * 2 + 1];
+
dso__set_build_id(dso, &bev->build_id);
- if (filename[0] == '[')
- dso->kernel = dso_type;
- }
+
+ if (filename[0] == '[')
+ dso->kernel = dso_type;
+
+ build_id__sprintf(dso->build_id, sizeof(dso->build_id),
+ sbuild_id);
+ pr_debug("build id event received for %s: %s\n",
+ dso->long_name, sbuild_id);
+ }
err = 0;
out:
@@ -767,7 +775,7 @@
switch (feat) {
case HEADER_TRACE_INFO:
- trace_report(fd);
+ trace_report(fd, false);
break;
case HEADER_BUILD_ID:
@@ -782,12 +790,16 @@
}
static int perf_file_header__read_pipe(struct perf_pipe_file_header *self,
- struct perf_header *ph, int fd)
+ struct perf_header *ph, int fd,
+ bool repipe)
{
if (do_read(fd, self, sizeof(*self)) <= 0 ||
memcmp(&self->magic, __perf_magic, sizeof(self->magic)))
return -1;
+ if (repipe && do_write(STDOUT_FILENO, self, sizeof(*self)) < 0)
+ return -1;
+
if (self->size != sizeof(*self)) {
u64 size = bswap_64(self->size);
@@ -805,7 +817,8 @@
struct perf_header *self = &session->header;
struct perf_pipe_file_header f_header;
- if (perf_file_header__read_pipe(&f_header, self, fd) < 0) {
+ if (perf_file_header__read_pipe(&f_header, self, fd,
+ session->repipe) < 0) {
pr_debug("incompatible file format\n");
return -EINVAL;
}
@@ -1096,12 +1109,17 @@
lseek(session->fd, offset + sizeof(struct tracing_data_event),
SEEK_SET);
- size_read = trace_report(session->fd);
+ size_read = trace_report(session->fd, session->repipe);
padding = ALIGN(size_read, sizeof(u64)) - size_read;
if (read(session->fd, buf, padding) < 0)
die("reading input file");
+ if (session->repipe) {
+ int retw = write(STDOUT_FILENO, buf, padding);
+ if (retw <= 0 || retw != padding)
+ die("repiping tracing data padding");
+ }
if (size_read + padding != size)
die("tracing data size mismatch");
@@ -1110,7 +1128,8 @@
}
int event__synthesize_build_id(struct dso *pos, u16 misc,
- event__handler_t process, struct machine *machine,
+ event__handler_t process,
+ struct machine *machine,
struct perf_session *session)
{
event_t ev;
@@ -1136,67 +1155,6 @@
return err;
}
-static int __event_synthesize_build_ids(struct list_head *head, u16 misc,
- event__handler_t process,
- struct machine *machine,
- struct perf_session *session)
-{
- struct dso *pos;
-
- dsos__for_each_with_build_id(pos, head) {
- int err;
- if (!pos->hit)
- continue;
-
- err = event__synthesize_build_id(pos, misc, process,
- machine, session);
- if (err < 0)
- return err;
- }
-
- return 0;
-}
-
-int event__synthesize_build_ids(event__handler_t process,
- struct perf_session *session)
-{
- int err = 0;
- u16 kmisc, umisc;
- struct machine *pos;
- struct rb_node *nd;
-
- if (!dsos__read_build_ids(&session->header, true))
- return 0;
-
- for (nd = rb_first(&session->machines); nd; nd = rb_next(nd)) {
- pos = rb_entry(nd, struct machine, rb_node);
- if (machine__is_host(pos)) {
- kmisc = PERF_RECORD_MISC_KERNEL;
- umisc = PERF_RECORD_MISC_USER;
- } else {
- kmisc = PERF_RECORD_MISC_GUEST_KERNEL;
- umisc = PERF_RECORD_MISC_GUEST_USER;
- }
-
- err = __event_synthesize_build_ids(&pos->kernel_dsos, kmisc,
- process, pos, session);
- if (err == 0)
- err = __event_synthesize_build_ids(&pos->user_dsos, umisc,
- process, pos, session);
- if (err)
- break;
- }
-
- if (err < 0) {
- pr_debug("failed to synthesize build ids\n");
- return err;
- }
-
- dsos__cache_build_ids(&session->header);
-
- return 0;
-}
-
int event__process_build_id(event_t *self,
struct perf_session *session)
{
diff --git a/tools/perf/util/header.h b/tools/perf/util/header.h
index f39443d..402ac24 100644
--- a/tools/perf/util/header.h
+++ b/tools/perf/util/header.h
@@ -122,8 +122,6 @@
event__handler_t process,
struct machine *machine,
struct perf_session *session);
-int event__synthesize_build_ids(event__handler_t process,
- struct perf_session *session);
int event__process_build_id(event_t *self, struct perf_session *session);
#endif /* __PERF_HEADER_H */
diff --git a/tools/perf/util/hweight.c b/tools/perf/util/hweight.c
new file mode 100644
index 0000000..5c1d0d0
--- /dev/null
+++ b/tools/perf/util/hweight.c
@@ -0,0 +1,31 @@
+#include <linux/bitops.h>
+
+/**
+ * hweightN - returns the hamming weight of a N-bit word
+ * @x: the word to weigh
+ *
+ * The Hamming Weight of a number is the total number of bits set in it.
+ */
+
+unsigned int hweight32(unsigned int w)
+{
+ unsigned int res = w - ((w >> 1) & 0x55555555);
+ res = (res & 0x33333333) + ((res >> 2) & 0x33333333);
+ res = (res + (res >> 4)) & 0x0F0F0F0F;
+ res = res + (res >> 8);
+ return (res + (res >> 16)) & 0x000000FF;
+}
+
+unsigned long hweight64(__u64 w)
+{
+#if BITS_PER_LONG == 32
+ return hweight32((unsigned int)(w >> 32)) + hweight32((unsigned int)w);
+#elif BITS_PER_LONG == 64
+ __u64 res = w - ((w >> 1) & 0x5555555555555555ul);
+ res = (res & 0x3333333333333333ul) + ((res >> 2) & 0x3333333333333333ul);
+ res = (res + (res >> 4)) & 0x0F0F0F0F0F0F0F0Ful;
+ res = res + (res >> 8);
+ res = res + (res >> 16);
+ return (res + (res >> 32)) & 0x00000000000000FFul;
+#endif
+}
diff --git a/tools/perf/util/include/asm/bitops.h b/tools/perf/util/include/asm/bitops.h
deleted file mode 100644
index 58e9817..0000000
--- a/tools/perf/util/include/asm/bitops.h
+++ /dev/null
@@ -1,18 +0,0 @@
-#ifndef _PERF_ASM_BITOPS_H_
-#define _PERF_ASM_BITOPS_H_
-
-#include <sys/types.h>
-#include "../../types.h"
-#include <linux/compiler.h>
-
-/* CHECKME: Not sure both always match */
-#define BITS_PER_LONG __WORDSIZE
-
-#include "../../../../include/asm-generic/bitops/__fls.h"
-#include "../../../../include/asm-generic/bitops/fls.h"
-#include "../../../../include/asm-generic/bitops/fls64.h"
-#include "../../../../include/asm-generic/bitops/__ffs.h"
-#include "../../../../include/asm-generic/bitops/ffz.h"
-#include "../../../../include/asm-generic/bitops/hweight.h"
-
-#endif
diff --git a/tools/perf/util/include/asm/hweight.h b/tools/perf/util/include/asm/hweight.h
new file mode 100644
index 0000000..36cf26d
--- /dev/null
+++ b/tools/perf/util/include/asm/hweight.h
@@ -0,0 +1,8 @@
+#ifndef PERF_HWEIGHT_H
+#define PERF_HWEIGHT_H
+
+#include <linux/types.h>
+unsigned int hweight32(unsigned int w);
+unsigned long hweight64(__u64 w);
+
+#endif /* PERF_HWEIGHT_H */
diff --git a/tools/perf/util/include/linux/bitmap.h b/tools/perf/util/include/linux/bitmap.h
index 9450763..eda4416 100644
--- a/tools/perf/util/include/linux/bitmap.h
+++ b/tools/perf/util/include/linux/bitmap.h
@@ -1,3 +1,35 @@
-#include "../../../../include/linux/bitmap.h"
-#include "../../../../include/asm-generic/bitops/find.h"
-#include <linux/errno.h>
+#ifndef _PERF_BITOPS_H
+#define _PERF_BITOPS_H
+
+#include <string.h>
+#include <linux/bitops.h>
+
+int __bitmap_weight(const unsigned long *bitmap, int bits);
+
+#define BITMAP_LAST_WORD_MASK(nbits) \
+( \
+ ((nbits) % BITS_PER_LONG) ? \
+ (1UL<<((nbits) % BITS_PER_LONG))-1 : ~0UL \
+)
+
+#define small_const_nbits(nbits) \
+ (__builtin_constant_p(nbits) && (nbits) <= BITS_PER_LONG)
+
+static inline void bitmap_zero(unsigned long *dst, int nbits)
+{
+ if (small_const_nbits(nbits))
+ *dst = 0UL;
+ else {
+ int len = BITS_TO_LONGS(nbits) * sizeof(unsigned long);
+ memset(dst, 0, len);
+ }
+}
+
+static inline int bitmap_weight(const unsigned long *src, int nbits)
+{
+ if (small_const_nbits(nbits))
+ return hweight_long(*src & BITMAP_LAST_WORD_MASK(nbits));
+ return __bitmap_weight(src, nbits);
+}
+
+#endif /* _PERF_BITOPS_H */
diff --git a/tools/perf/util/include/linux/bitops.h b/tools/perf/util/include/linux/bitops.h
index 8d63116..bb4ac2e 100644
--- a/tools/perf/util/include/linux/bitops.h
+++ b/tools/perf/util/include/linux/bitops.h
@@ -1,13 +1,12 @@
#ifndef _PERF_LINUX_BITOPS_H_
#define _PERF_LINUX_BITOPS_H_
-#define __KERNEL__
+#include <linux/kernel.h>
+#include <asm/hweight.h>
-#define CONFIG_GENERIC_FIND_NEXT_BIT
-#define CONFIG_GENERIC_FIND_FIRST_BIT
-#include "../../../../include/linux/bitops.h"
-
-#undef __KERNEL__
+#define BITS_PER_LONG __WORDSIZE
+#define BITS_PER_BYTE 8
+#define BITS_TO_LONGS(nr) DIV_ROUND_UP(nr, BITS_PER_BYTE * sizeof(long))
static inline void set_bit(int nr, unsigned long *addr)
{
@@ -20,10 +19,9 @@
(((unsigned long *)addr)[nr / BITS_PER_LONG])) != 0;
}
-unsigned long generic_find_next_zero_le_bit(const unsigned long *addr, unsigned
- long size, unsigned long offset);
-
-unsigned long generic_find_next_le_bit(const unsigned long *addr, unsigned
- long size, unsigned long offset);
+static inline unsigned long hweight_long(unsigned long w)
+{
+ return sizeof(w) == 4 ? hweight32(w) : hweight64(w);
+}
#endif
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index a8dd73e..5d353e7 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -77,7 +77,7 @@
return ret;
}
-struct perf_session *perf_session__new(const char *filename, int mode, bool force)
+struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe)
{
size_t len = filename ? strlen(filename) + 1 : 0;
struct perf_session *self = zalloc(sizeof(*self) + len);
@@ -97,6 +97,7 @@
self->cwdlen = 0;
self->unknown_events = 0;
self->machines = RB_ROOT;
+ self->repipe = repipe;
self->ordered_samples.flush_limit = ULLONG_MAX;
INIT_LIST_HEAD(&self->ordered_samples.samples_head);
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 61ca92e..f2b2c6a 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -34,6 +34,7 @@
u64 sample_type;
int fd;
bool fd_pipe;
+ bool repipe;
int cwdlen;
char *cwd;
struct ordered_samples ordered_samples;
@@ -59,7 +60,7 @@
bool ordered_samples;
};
-struct perf_session *perf_session__new(const char *filename, int mode, bool force);
+struct perf_session *perf_session__new(const char *filename, int mode, bool force, bool repipe);
void perf_session__delete(struct perf_session *self);
void perf_event_header__bswap(struct perf_event_header *self);
diff --git a/tools/perf/util/trace-event-read.c b/tools/perf/util/trace-event-read.c
index 4606639..cb54cd0 100644
--- a/tools/perf/util/trace-event-read.c
+++ b/tools/perf/util/trace-event-read.c
@@ -51,6 +51,7 @@
static unsigned long page_size;
static ssize_t calc_data_size;
+static bool repipe;
/* If it fails, the next read will report it */
static void skip(int size)
@@ -68,6 +69,13 @@
if (ret <= 0)
return -1;
+ if (repipe) {
+ int retw = write(STDOUT_FILENO, buf, ret);
+
+ if (retw <= 0 || retw != ret)
+ die("repiping input file");
+ }
+
size -= ret;
buf += ret;
}
@@ -122,6 +130,13 @@
if (!r)
die("no data");
+ if (repipe) {
+ int retw = write(STDOUT_FILENO, &c, 1);
+
+ if (retw <= 0 || retw != r)
+ die("repiping input file string");
+ }
+
buf[size++] = c;
if (!c)
@@ -456,7 +471,7 @@
return data;
}
-ssize_t trace_report(int fd)
+ssize_t trace_report(int fd, bool __repipe)
{
char buf[BUFSIZ];
char test[] = { 23, 8, 68 };
@@ -467,6 +482,7 @@
ssize_t size;
calc_data_size = 1;
+ repipe = __repipe;
input_fd = fd;
@@ -501,6 +517,7 @@
size = calc_data_size - 1;
calc_data_size = 0;
+ repipe = false;
if (show_funcs) {
print_funcs();
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 4e1acc3..406d452 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -163,7 +163,7 @@
void parse_set_info(int nr_cpus, int long_sz);
-ssize_t trace_report(int fd);
+ssize_t trace_report(int fd, bool repipe);
void *malloc_or_die(unsigned int size);