Commit Graph

36 Commits

Author SHA1 Message Date
Jim Harris
c199f56d99 app/trace: suppress TSC output by default
Number of microseconds is sufficient in almost all cases,
so don't print out the TSC offset unless user specifies
-t option.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I3bbf55204bf58d94f43161ff41c565ca92e218f7

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452737
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-05-02 08:41:56 +00:00
Jim Harris
617184be3b trace: remove short_name
This was not used by any of the trace register descriptions.
Let's remove it rather keeping it around if we don't need it.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Idda809e2911db5be555ff6aa13695484a14bf665

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452734
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
2019-05-02 08:41:56 +00:00
Jim Harris
dd1c38cc68 trace: allow arg1 to represent a string
This requires changing arg1_is_ptr to arg1_type.
We will use this to print the first 8 characters of
a blobfs filename when collecting event trace data.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I1b321d99145e82b42dcf6d901ce9d6298158edae

Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/452259
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ziye Yang <ziye.yang@intel.com>
Reviewed-by: Darek Stojaczyk <dariusz.stojaczyk@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-05-01 17:10:43 +00:00
Xiaodong Liu
1468f8dd3b app/trace: check num_entries before referring
For trace file which is generated by spdk trace_record,
if one lcore recorded no entries, there is no space for
it to have idle entries to referring.

Change-Id: I1cd89ec934407fc805bda66c8c87f76cb181679e
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449840
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-04-04 01:43:44 +00:00
Xiaodong Liu
0c41a7ce95 app/trace: remove redundant memory/pointer
Previously, copying trace-file from disk or page-cache
to memory aims to accelerate disk-read in one large
sequential read.
But it shows no value, since trace-data are originally
retrieved sequentially, and page-cache can handle it
well.

Change-Id: I1c328286686ed05e83f3b7a1bef10dc353c5b653
Signed-off-by: Xiaodong Liu <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/c/spdk/spdk/+/449839
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2019-04-04 01:43:44 +00:00
Jim Harris
b4c8e45632 app/trace: print error messages when input file is corrupted
Found while trying to process a file that wasn't completely
written yet - it would SIGBUS instead of printing an error
message.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I56d60519f0608900697102c06310ebb92ec4d39c

Reviewed-on: https://review.gerrithub.io/c/441988
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2019-01-28 02:33:50 +00:00
Jim Harris
20476c6521 app/trace: simplify error messages when printing file name
Just have file_name point to shm_name when we're processing
shared memory.  This will be more helpful with the next
commit that adds more error messages.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I7c50ea0c16c6ced0a1aed59b225cb29d0f7b7345

Reviewed-on: https://review.gerrithub.io/c/441987
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2019-01-28 02:33:50 +00:00
Jim Harris
cceaeedb1f build: add mk/spdk.app_cxx.mk
This is just a copy of spdk.app.mk for now.  But later
patches will modify spdk.app.mk in a "C-specific" way,
so add this cxx variant to use now in the C++ apps.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I0d4d28c6119364d4c3cc7fa5274598b69f4ee6b1

Reviewed-on: https://review.gerrithub.io/434279
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-12-11 18:07:53 +00:00
Tomasz Zawadzki
6b8ca50e84 app/trace: don't use shm_name when using file_name during remaping trace
Change-Id: I9449d40ff31039f3f59bc60c956592e0e565437a
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/435114
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Xiaodong Liu <xiaodong.liu@intel.com>
2018-12-03 20:24:29 +00:00
Liu Xiaodong
9d2f39ab0b lib/trace: records num-trace-entries for lcores
With the trace_size records for each lcore, spdk_trace
can read trace_file in which each lcore has different
number of trace entries.
Offset of each trace_history from the beginning of this
data structure.

Change-Id: I06afaba129812fe40ed000265fc66b02c5d9e3d9
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/433503
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-11-26 18:34:18 +00:00
Liu Xiaodong
fd4c75721e lib/trace: set num-trace-entries by app param
Number of trace entries in circular buffer per lcore can be
assigned by the boot parameter of SPDK app with
"--num-trace-entries <NUM>"

Change-Id: I855ce6b4f14a716dcdd9078913da5ea8e577af3a
Signed-off-by: Liu Xiaodong <xiaodong.liu@intel.com>
Reviewed-on: https://review.gerrithub.io/433099
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
2018-11-26 18:34:18 +00:00
Tomasz Zawadzki
a7e049e722 app/trace: do not print shm_name when using file_name
Change-Id: Ibaeac2d85f3e29df00f64d3e5c1d17d663e32278
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/434068
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-11-20 22:40:39 +00:00
Tomasz Zawadzki
c3c6922941 app/trace: fix app_name dereference on init
In case when only file_name was provided,
app_name was still dereferenced.

Change-Id: Ica948e072ef02a8daadf303b3e2a004640d19000
Signed-off-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-on: https://review.gerrithub.io/433609
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
2018-11-19 15:34:26 +00:00
Jim Harris
3f229f0e46 app/trace: calculate per-core overlaps correctly
Remove the calculation of g_last_tsc.  This was erroneously
cutting out valid data - for example, when reactor X has
an event that happened very early on, then reactor Y fills
its buffer before reactor X has another event.  All of reactor
Y's data would be ignored until reactor X processed another
event.

While here, remove some code that should have been removed
as part of the fudge_factor removal.  Also use SPDK_COUNTOF
to simplify calculation of the number of entries per
reactor buffer.

Reported-by: John Kariuki
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I16c7f80cbfc8b4bb5f90a195d30df69e07b4ff85

Reviewed-on: https://review.gerrithub.io/424615
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-05 18:03:43 +00:00
Jim Harris
ea0afee0e4 app/trace: add g_ to global variable names
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ia6b9d6ee8ce1339f331788f418dbb8b3f5d68b3b

Reviewed-on: https://review.gerrithub.io/424614
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-05 18:03:43 +00:00
Jim Harris
e8881867f8 nvmf: add tracepoints for ib async events
While here, clean up the trace application output based
on some debugging done with these tracepoints.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Iaf79f0ff8c80d0a6b9768ae0da213d57e98ec552

Reviewed-on: https://review.gerrithub.io/424286
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-09-05 18:03:43 +00:00
Jim Harris
82c3c30f44 trace: remove alias concept
This was added a long time back for tracking an rte_mbuf
whose buffer was a different rte_mbuf - all related to
a userspace TCP stack that is no longer in development.
The concept isn't useful now, so remove it to reduce
the complexity of the tracing code.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I310e492eba7f55df242bb29d82fb19f6daee1f51

Reviewed-on: https://review.gerrithub.io/424565
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
2018-09-05 18:03:43 +00:00
Jim Harris
b7b7c04609 spdk_trace: allow specifying a filename on command line
This allows for offline debugging with a tracepoint
file - you can copy the shared memory file out of
/dev/shm to a normal file, then pass that in to this
trace app.

Note: Linux puts shared memory files in /dev/shm which
makes it easy to copy to a regular file.  FreeBSD does
not expose shared memory objects in this way - so for
now this capability to debug tracepoint files offline
will be limited primarily to Linux.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I046b71bdd65cab5a76500775838a5072bec8da39

Reviewed-on: https://review.gerrithub.io/424284
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-05 18:03:43 +00:00
Jim Harris
0fd41a7c34 spdk_trace: remove fudge factor parameter
This was added a very long time back to debug this trace
app itself - it's no longer useful.  Plus removing it
reclaims the -f flag which we'll use next to specify
a filename for decoding a tracepoint file offline.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I4fb2352187e6f89e0bd77d01589762f734e4d359

Reviewed-on: https://review.gerrithub.io/424283
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-04 17:09:25 +00:00
Jim Harris
aa37b4f9d5 spdk_trace: improve formatting
This ensures the per-event arguments are always lined
up in the output.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: I89ccc10e5ab5653562d598f7c0e5bf495becdf01

Reviewed-on: https://review.gerrithub.io/424281
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2018-09-04 17:09:25 +00:00
Liang Yan
ddb3583b44 app/trace: update app name
Change-Id: Id3eaf1d0a4216d0bea618821ffe5456f4e07f4b9
Signed-off-by: Liang Yan <liang.z.yan@intel.com>
Reviewed-on: https://review.gerrithub.io/416917
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
2018-06-28 17:45:49 +00:00
Jim Harris
bb24ce82a6 build: add @: to remaining 'all' targets
It is not ideal to have to add this in a bunch of
different Makefiles, but further consolidation of
Makefiles is going to be a more arduous process.

With this change, rebuilding SPDK after no changes
will result in no output - all of the "Nothing to
be done for 'all'" messages have been removed.  Note
that DPDK build output still remains - this can be
suppressed by either using an out-of-tree DPDK, or
using SKIP_DPDK_BUILD=1 when using the in-tree DPDK
submodule.

Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Ib1d45432f2baaa1d9c1b9509906ee1e77966d3ca

Reviewed-on: https://review.gerrithub.io/399918
Reviewed-by: Daniel Verkamp <daniel.verkamp@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
2018-02-14 17:38:25 -05:00
Daniel Verkamp
543cb17248 build: remove $(ENV_CFLAGS) where not necessary
Only Makefiles for libraries that directly depend on DPDK (rather than
the SPDK env abstraction) should add $(ENV_CFLAGS).

Change-Id: Ifdf44d3ef8c42bbf7f20edd524b330d00658235b
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/392818
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2018-01-03 12:05:59 -05:00
Daniel Verkamp
59970a89be astyle: enforce braces around single-line statements
Require braces around all conditional statements, e.g.:

    if (cond)
        statement();

becomes:

    if (cond) {
        statement();
    }

This is the style used through most of the SPDK code, but several
exceptions crept in over time.  Add the astyle option to make sure we
are consistent.

Change-Id: I5a71980147fe8dfb471ff42e8bc06db2124a1a7f
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/390914
Reviewed-by: <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: Dariusz Stojaczyk <dariuszx.stojaczyk@intel.com>
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Changpeng Liu <changpeng.liu@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-12-11 11:19:32 -05:00
Ed Rodriguez
63bf022b93 trace: Move trace flags to separate implementation file
Change-Id: Ibe31b961fec36644cf64716c512429d68e873e88
Signed-off-by: Ed rodriguez <edwinr@netapp.com>
Reviewed-on: https://review.gerrithub.io/386170
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
2017-11-15 18:57:12 -05:00
Daniel Verkamp
52412ab10b build: include spdk.app.mk in all app Makefiles
This will be used to include common app-specific rules in upcoming
patches (it currently makes no difference).

Change-Id: Ia828ba01c94fc9f70e15db3fc1d9cafda387e912
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
Reviewed-on: https://review.gerrithub.io/387629
Tested-by: SPDK Automated Test System <sys_sgsw@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
2017-11-15 17:57:07 -05:00
Ben Walker
b961d9cc12 include: Move the remainder of the code base to stdinc.h
Change-Id: I6a142feeaad3117bd3c75e7c5cb7231a1cfa78ae
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-05-08 13:20:36 -07:00
Jim Harris
10fd30eb01 app/trace: verify tsc_rate specified in shm is > 0
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: If60eb51a1a5bad4340eb2ec39a24ad13434e9044
2017-03-28 12:31:30 -07:00
Jim Harris
21ceba8855 app/trace: exit if shm mmap fails
Signed-off-by: Jim Harris <james.r.harris@intel.com>
Change-Id: Icbe76cafddf5bd1e457c87e8241e68cb18a044dd
2017-03-28 11:00:01 -07:00
Daniel Verkamp
60fc74584a event/app: use PID for trace ID if shm_id is unset
Change-Id: If79a09e109a3885e1282f3e834b531c250e59512
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2017-03-09 15:33:17 -07:00
Ben Walker
25270f1d7c Rename instance_id to shm_id and make it default to pid
By default, all SPDK applications will not share memory.
To share memory, start the applications with the same
shared memory id.

Change-Id: Ib6180369ef0ed12d05983a21d7943e467402b21a
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2017-02-15 17:16:37 -07:00
Ben Walker
a4747c6048 env: Make the environment library configurable.
This allows users to swap out SPDK's third party
libraries for an implementation based on their own
framework.

Change-Id: Ia0b7384ce5e31acba5ad0d7002dec9e95b759c52
Signed-off-by: Ben Walker <benjamin.walker@intel.com>
2016-10-05 11:51:37 -07:00
Daniel Verkamp
c943e9ff4f trace: hard-code lcore history array size
Make sure the trace history that is exported via shared memory is always
the same size, regardless of DPDK configuration.

Also removes the necessity of including DPDK headers from spdk/trace.h
(so we have to fix up other files to include what they use).

Change-Id: I32f88921fd95c64a9d1f4ba768ae75e2ca5d91da
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-07-22 12:50:44 -07:00
Daniel Verkamp
39cc59635a build: include -lrt and -lpthread in LDFLAGS
Simplify the build rules so that common libraries are always linked.

Also fix up a couple of -lpciaccess instances that should have been
changed to $(PCIACCESS_LIB).

Change-Id: I4c50fa3aa59cae013d3385e38fbb830794299f6e
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-06-23 09:04:02 -07:00
Daniel Verkamp
22f741d539 trace: update shm name to match event lib
Add the '/' prefix to the trace shm name.

Change-Id: I4cf1011b639f299314ea379ba3fb626f5c2c787a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-06-01 10:14:46 -07:00
Daniel Verkamp
bdece622f5 trace: add tracepoint library and app
Change-Id: I472fb7e7a82e1337c6c06b1d3bb4e8a2a13d884a
Signed-off-by: Daniel Verkamp <daniel.verkamp@intel.com>
2016-05-11 10:43:09 -07:00