Linux 4.2

-----BEGIN PGP SIGNATURE-----
 Version: GnuPG v1
 
 iQEcBAABAgAGBQJV40ypAAoJEHm+PkMAQRiGSAYH/itdmCdWrcciOERAEdwSJD0e
 HvuohwhrJWmA7BsXMiIjJa5hAybut69VCAEnZAfNRZk2kWJd6jbg0Y0pOWcuh8tx
 vOQNkzYkDFEuJYYnMj2EtcQqomT1WAZaz45zSKf+j/HAHzvTBLZ3/J7RoxVQ0pj9
 1/MgP4+N6TGgRlizvQeTSm0hWkxiMUqah6x+SHX1e/4jrN9SPS/Ik6bHaQpEmpP3
 /16WpfoVEBKgN+rd4kmZJxTt3RR8FvR8qGBS5/ipaFPxelOXuo7bTjnpd1EAtZ/T
 8LO3G9mHNjslaLkSRJnAX0TI6zZhZprb8mR8+kSMPRNCx2+WjzGynXKINphMVS0=
 =lk53
 -----END PGP SIGNATURE-----

Merge tag 'v4.2' into for_next

Linux 4.2
This commit is contained in:
Chris Zankel 2015-08-29 23:55:58 +00:00
commit 650c919798
1394 changed files with 14467 additions and 9560 deletions

View file

@ -36,7 +36,7 @@ $(LIBFILE): $(API_IN)
clean:
$(call QUIET_CLEAN, libapi) $(RM) $(LIBFILE); \
find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o | xargs $(RM)
find $(if $(OUTPUT),$(OUTPUT),.) -name \*.o -or -name \*.o.cmd -or -name \*.o.d | xargs $(RM)
FORCE:

62
tools/lib/hweight.c Normal file
View file

@ -0,0 +1,62 @@
#include <linux/bitops.h>
#include <asm/types.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 __sw_hweight32(unsigned int w)
{
#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
w -= (w >> 1) & 0x55555555;
w = (w & 0x33333333) + ((w >> 2) & 0x33333333);
w = (w + (w >> 4)) & 0x0f0f0f0f;
return (w * 0x01010101) >> 24;
#else
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;
#endif
}
unsigned int __sw_hweight16(unsigned int w)
{
unsigned int res = w - ((w >> 1) & 0x5555);
res = (res & 0x3333) + ((res >> 2) & 0x3333);
res = (res + (res >> 4)) & 0x0F0F;
return (res + (res >> 8)) & 0x00FF;
}
unsigned int __sw_hweight8(unsigned int w)
{
unsigned int res = w - ((w >> 1) & 0x55);
res = (res & 0x33) + ((res >> 2) & 0x33);
return (res + (res >> 4)) & 0x0F;
}
unsigned long __sw_hweight64(__u64 w)
{
#if BITS_PER_LONG == 32
return __sw_hweight32((unsigned int)(w >> 32)) +
__sw_hweight32((unsigned int)w);
#elif BITS_PER_LONG == 64
#ifdef CONFIG_ARCH_HAS_FAST_MULTIPLIER
w -= (w >> 1) & 0x5555555555555555ul;
w = (w & 0x3333333333333333ul) + ((w >> 2) & 0x3333333333333333ul);
w = (w + (w >> 4)) & 0x0f0f0f0f0f0f0f0ful;
return (w * 0x0101010101010101ul) >> 56;
#else
__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
#endif
}

View file

@ -268,7 +268,7 @@ install: install_lib
clean:
$(call QUIET_CLEAN, libtraceevent) \
$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d \
$(RM) *.o *~ $(TARGETS) *.a *.so $(VERSION_FILES) .*.d .*.cmd \
$(RM) TRACEEVENT-CFLAGS tags TAGS
PHONY += force plugins

View file

@ -18,6 +18,7 @@ tools/arch/x86/include/asm/atomic.h
tools/arch/x86/include/asm/rmwcc.h
tools/lib/traceevent
tools/lib/api
tools/lib/hweight.c
tools/lib/rbtree.c
tools/lib/symbol/kallsyms.c
tools/lib/symbol/kallsyms.h
@ -57,7 +58,6 @@ include/linux/perf_event.h
include/linux/list.h
include/linux/hash.h
include/linux/stringify.h
lib/hweight.c
include/linux/swab.h
arch/*/include/asm/unistd*.h
arch/*/include/uapi/asm/unistd*.h

View file

@ -109,9 +109,22 @@ $(OUTPUT)PERF-VERSION-FILE: ../../.git/HEAD
$(Q)$(SHELL_PATH) util/PERF-VERSION-GEN $(OUTPUT)
$(Q)touch $(OUTPUT)PERF-VERSION-FILE
CC = $(CROSS_COMPILE)gcc
LD ?= $(CROSS_COMPILE)ld
AR = $(CROSS_COMPILE)ar
# Makefiles suck: This macro sets a default value of $(2) for the
# variable named by $(1), unless the variable has been set by
# environment or command line. This is necessary for CC and AR
# because make sets default values, so the simpler ?= approach
# won't work as expected.
define allow-override
$(if $(or $(findstring environment,$(origin $(1))),\
$(findstring command line,$(origin $(1)))),,\
$(eval $(1) = $(2)))
endef
# Allow setting CC and AR and LD, or setting CROSS_COMPILE as a prefix.
$(call allow-override,CC,$(CROSS_COMPILE)gcc)
$(call allow-override,AR,$(CROSS_COMPILE)ar)
$(call allow-override,LD,$(CROSS_COMPILE)ld)
PKG_CONFIG = $(CROSS_COMPILE)pkg-config
RM = rm -f

View file

@ -521,6 +521,15 @@ static int __cmd_record(struct record *rec, int argc, const char **argv)
goto out_child;
}
/*
* Normally perf_session__new would do this, but it doesn't have the
* evlist.
*/
if (rec->tool.ordered_events && !perf_evlist__sample_id_all(rec->evlist)) {
pr_warning("WARNING: No sample_id_all support, falling back to unordered processing\n");
rec->tool.ordered_events = false;
}
if (!rec->evlist->nr_groups)
perf_header__clear_feat(&session->header, HEADER_GROUP_DESC);
@ -965,9 +974,11 @@ static struct record record = {
.tool = {
.sample = process_sample_event,
.fork = perf_event__process_fork,
.exit = perf_event__process_exit,
.comm = perf_event__process_comm,
.mmap = perf_event__process_mmap,
.mmap2 = perf_event__process_mmap2,
.ordered_events = true,
},
};

View file

@ -343,7 +343,7 @@ static int read_counter(struct perf_evsel *counter)
return 0;
}
static void read_counters(bool close)
static void read_counters(bool close_counters)
{
struct perf_evsel *counter;
@ -354,7 +354,7 @@ static void read_counters(bool close)
if (process_counter(counter))
pr_warning("failed to process counter %s\n", counter->name);
if (close) {
if (close_counters) {
perf_evsel__close_fd(counter, perf_evsel__nr_cpus(counter),
thread_map__nr(evsel_list->threads));
}

View file

@ -601,8 +601,8 @@ static void display_sig(int sig __maybe_unused)
static void display_setup_sig(void)
{
signal(SIGSEGV, display_sig);
signal(SIGFPE, display_sig);
signal(SIGSEGV, sighandler_dump_stack);
signal(SIGFPE, sighandler_dump_stack);
signal(SIGINT, display_sig);
signal(SIGQUIT, display_sig);
signal(SIGTERM, display_sig);

View file

@ -638,7 +638,7 @@ ifndef DESTDIR
prefix ?= $(HOME)
endif
bindir_relative = bin
bindir = $(prefix)/$(bindir_relative)
bindir = $(abspath $(prefix)/$(bindir_relative))
mandir = share/man
infodir = share/info
perfexecdir = libexec/perf-core

View file

@ -48,7 +48,7 @@ static struct rb_node *hists__filter_entries(struct rb_node *nd,
static bool hist_browser__has_filter(struct hist_browser *hb)
{
return hists__has_filter(hb->hists) || hb->min_pcnt;
return hists__has_filter(hb->hists) || hb->min_pcnt || symbol_conf.has_filter;
}
static int hist_browser__get_folding(struct hist_browser *browser)

View file

@ -143,6 +143,6 @@ $(OUTPUT)util/rbtree.o: ../lib/rbtree.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)
$(OUTPUT)util/hweight.o: ../../lib/hweight.c FORCE
$(OUTPUT)util/hweight.o: ../lib/hweight.c FORCE
$(call rule_mkdir)
$(call if_changed_dep,cc_o_c)

View file

@ -53,11 +53,6 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
{
struct perf_event_mmap_page *pc = userpg;
#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
pr_err("Cannot use AUX area tracing mmaps\n");
return -1;
#endif
WARN_ONCE(mm->base, "Uninitialized auxtrace_mmap\n");
mm->userpg = userpg;
@ -73,6 +68,11 @@ int auxtrace_mmap__mmap(struct auxtrace_mmap *mm,
return 0;
}
#if BITS_PER_LONG != 64 && !defined(HAVE_SYNC_COMPARE_AND_SWAP_SUPPORT)
pr_err("Cannot use AUX area tracing mmaps\n");
return -1;
#endif
pc->aux_offset = mp->offset;
pc->aux_size = mp->len;

View file

@ -1387,6 +1387,24 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
event->fork.ptid);
int err = 0;
if (dump_trace)
perf_event__fprintf_task(event, stdout);
/*
* There may be an existing thread that is not actually the parent,
* either because we are processing events out of order, or because the
* (fork) event that would have removed the thread was lost. Assume the
* latter case and continue on as best we can.
*/
if (parent->pid_ != (pid_t)event->fork.ppid) {
dump_printf("removing erroneous parent thread %d/%d\n",
parent->pid_, parent->tid);
machine__remove_thread(machine, parent);
thread__put(parent);
parent = machine__findnew_thread(machine, event->fork.ppid,
event->fork.ptid);
}
/* if a thread currently exists for the thread id remove it */
if (thread != NULL) {
machine__remove_thread(machine, thread);
@ -1395,8 +1413,6 @@ int machine__process_fork_event(struct machine *machine, union perf_event *event
thread = machine__findnew_thread(machine, event->fork.pid,
event->fork.tid);
if (dump_trace)
perf_event__fprintf_task(event, stdout);
if (thread == NULL || parent == NULL ||
thread__fork(thread, parent, sample->time) < 0) {

View file

@ -10,7 +10,7 @@ util/ctype.c
util/evlist.c
util/evsel.c
util/cpumap.c
../../lib/hweight.c
../lib/hweight.c
util/thread_map.c
util/util.c
util/xyarray.c
@ -19,5 +19,5 @@ util/rblist.c
util/stat.c
util/strlist.c
util/trace-event.c
../../lib/rbtree.c
../lib/rbtree.c
util/string.c

View file

@ -85,7 +85,7 @@ void perf_stat__update_shadow_stats(struct perf_evsel *counter, u64 *count,
else if (perf_evsel__match(counter, HARDWARE, HW_CPU_CYCLES))
update_stats(&runtime_cycles_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, CYCLES_IN_TX))
update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
update_stats(&runtime_cycles_in_tx_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, TRANSACTION_START))
update_stats(&runtime_transaction_stats[ctx][cpu], count[0]);
else if (perf_stat_evsel__is(counter, ELISION_START))
@ -398,20 +398,18 @@ void perf_stat__print_shadow_stats(FILE *out, struct perf_evsel *evsel,
" # %5.2f%% aborted cycles ",
100.0 * ((total2-avg) / total));
} else if (perf_stat_evsel__is(evsel, TRANSACTION_START) &&
avg > 0 &&
runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
if (total)
if (avg)
ratio = total / avg;
fprintf(out, " # %8.0f cycles / transaction ", ratio);
} else if (perf_stat_evsel__is(evsel, ELISION_START) &&
avg > 0 &&
runtime_cycles_in_tx_stats[ctx][cpu].n != 0) {
total = avg_stats(&runtime_cycles_in_tx_stats[ctx][cpu]);
if (total)
if (avg)
ratio = total / avg;
fprintf(out, " # %8.0f cycles / elision ", ratio);

View file

@ -1911,6 +1911,8 @@ int setup_list(struct strlist **list, const char *list_str,
pr_err("problems parsing %s list\n", list_name);
return -1;
}
symbol_conf.has_filter = true;
return 0;
}

View file

@ -105,7 +105,8 @@ struct symbol_conf {
demangle_kernel,
filter_relative,
show_hist_headers,
branch_callstack;
branch_callstack,
has_filter;
const char *vmlinux_name,
*kallsyms_name,
*source_prefix,

View file

@ -191,6 +191,12 @@ static int thread__clone_map_groups(struct thread *thread,
if (thread->pid_ == parent->pid_)
return 0;
if (thread->mg == parent->mg) {
pr_debug("broken map groups on thread %d/%d parent %d/%d\n",
thread->pid_, thread->tid, parent->pid_, parent->tid);
return 0;
}
/* But this one is new process, copy maps. */
for (i = 0; i < MAP__NR_TYPES; ++i)
if (map_groups__clone(thread->mg, parent->mg, i) < 0)

View file

@ -136,8 +136,7 @@ struct thread_map *thread_map__new_by_uid(uid_t uid)
if (grow) {
struct thread_map *tmp;
tmp = realloc(threads, (sizeof(*threads) +
max_threads * sizeof(pid_t)));
tmp = thread_map__realloc(threads, max_threads);
if (tmp == NULL)
goto out_free_namelist;

View file

@ -236,18 +236,16 @@ static struct dso *__machine__findnew_compat(struct machine *machine,
const char *file_name;
struct dso *dso;
pthread_rwlock_wrlock(&machine->dsos.lock);
dso = __dsos__find(&machine->dsos, vdso_file->dso_name, true);
if (dso)
goto out_unlock;
goto out;
file_name = vdso__get_compat_file(vdso_file);
if (!file_name)
goto out_unlock;
goto out;
dso = __machine__addnew_vdso(machine, vdso_file->dso_name, file_name);
out_unlock:
pthread_rwlock_unlock(&machine->dsos.lock);
out:
return dso;
}

View file

@ -191,7 +191,7 @@ int main(int argc, char *argv[])
if (res > 0) {
atomic_set(&requeued, 1);
break;
} else if (res > 0) {
} else if (res < 0) {
error("FUTEX_CMP_REQUEUE_PI failed\n", errno);
ret = RET_ERROR;
break;