linux/tools
Adrian Hunter 33f3bc42fc perf intel-pt: Fix last_ip usage
commit ee14ac0ef6 upstream.

Intel PT uses IP compression based on the last IP. For decoding
purposes, 'last IP' is considered to be reset to zero whenever there is
a synchronization packet (PSB). The decoder wasn't doing that, and was
treating the zero value to mean that there was no last IP, whereas
compression can be done against the zero value. Fix by setting last_ip
to zero when a PSB is received and keep track of have_last_ip.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1495786658-18063-6-git-send-email-adrian.hunter@intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-08-06 19:19:40 -07:00
..
arch
build tools build: Fix libiberty feature detection 2015-10-29 17:46:35 -03:00
cgroup
firewire
hv Tools: hv: kvp: ensure kvp device fd is closed on exec 2017-04-27 09:09:33 +02:00
iio iio: generic_buffer: be helpful about enabling channels 2015-08-16 10:51:26 +01:00
include tools include: Add a __fallthrough statement 2017-07-15 11:57:47 +02:00
laptop/freefall
lguest tools/lguest: Clean up include dir 2015-08-26 06:12:35 +02:00
lib tools/lib/lockdep: Reduce MAX_LOCK_DEPTH to avoid overflowing lock_chain/: Depth 2017-07-21 07:44:56 +02:00
net tools/net: Use include/uapi with __EXPORTED_HEADERS__ 2015-11-15 17:24:33 -05:00
nfsd
perf perf intel-pt: Fix last_ip usage 2017-08-06 19:19:40 -07:00
power cpupower: Fix turbo frequency reporting for pre-Sandy Bridge cores 2017-05-14 13:32:54 +02:00
scripts
testing selftests/capabilities: Fix the test_execve test 2017-07-21 07:44:58 +02:00
thermal/tmon tools/thermal: tmon: use pkg-config also for CFLAGS 2015-10-10 11:32:31 +08:00
time
usb usb: patches for v4.4 merge window 2015-10-22 17:19:33 -07:00
virtio tools/virtio: fix byteswap logic 2015-12-07 17:28:10 +02:00
vm tools/vm/slabinfo: fix an unintentional printf 2016-10-07 15:23:41 +02:00
Makefile tools: Add a "make all" rule 2015-11-12 18:58:10 -03:00