trafgen-libs = $(shell pkg-config --libs libnl-3.0) \
$(shell pkg-config --libs libnl-genl-3.0) \
-lm
trafgen-objs = xmalloc.o \
ioops.o \
privs.o \
proc.o \
dev.o \
irq.o \
link.o \
str.o \
sig.o \
sock.o \
mac80211.o \
ring_tx.o \
ring.o \
timer.o \
trafgen_lexer.yy.o \
trafgen_parser.tab.o \
trafgen.o
trafgen-lex = trafgen_lexer.yy.o
trafgen-yaac = trafgen_parser.tab.o
trafgen-eflags = $(shell pkg-config --cflags libnl-3.0) \
$(shell pkg-config --cflags libnl-genl-3.0) \
-I..
trafgen-confs = trafgen_stddef.h
trafgen_post_install:
$(Q)mv $(DESTDIR)$(ETCDIRE)/trafgen_stddef.h $(DESTDIR)$(ETCDIRE)/stddef.h
trafgen_clean_custom:
$(Q)$(call RM,$(BUILD_DIR)/*.h $(BUILD_DIR)/*.c)
' alt='cgit logo'/>
perf evsel: Print state of perf_event_attr.write_backward
Now we can see if it is set when using verbose mode in various tools,
such as 'perf test':
# perf test -vv back
45: Test backward reading from ring buffer :
--- start ---
<SNIP>
------------------------------------------------------------
perf_event_attr:
type 2
size 112
config 0x98
{ sample_period, sample_freq } 1
sample_type IP|TID|TIME|CPU|PERIOD|RAW
disabled 1
mmap 1
comm 1
task 1
sample_id_all 1
exclude_guest 1
mmap2 1
comm_exec 1
write_backward 1
------------------------------------------------------------
sys_perf_event_open: pid 20911 cpu -1 group_fd -1 flags 0x8
<SNIP>
---- end ----
Test backward reading from ring buffer: Ok
#
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: David Ahern <dsahern@gmail.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Milian Wolff <milian.wolff@kdab.com>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Wang Nan <wangnan0@huawei.com>
Link: http://lkml.kernel.org/n/tip-kxv05kv9qwl5of7rzfeiiwbv@git.kernel.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>