linux/tools/lib/traceevent, branch v4.9

tools lib traceevent: Fix kbuffer_read_at_offset()

2016-10-05T14:36:22Z

When it's called with an offset less than or equal to the first event, it'll return a garbage value since the data is not initialized. Signed-off-by: Namhyung Kim Acked-by: Steven Rostedt Cc: Jiri Olsa Cc: Peter Zijlstra Link: http://lkml.kernel.org/r/20161001101700.29146-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Ignore generated library files

2016-08-02T15:16:13Z

Signed-off-by: Namhyung Kim Cc: David Ahern Cc: Jiri Olsa Cc: Peter Zijlstra Cc: Steven Rostedt Link: http://lkml.kernel.org/r/20160802050148.3413-1-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add correct header for ipv6 definitions

2016-07-14T14:33:32Z

We need to include netinet/in.h to get the in6_addr struct definition, needed to build it on the Android NDK: In file included from event-parse.c:36:0: /home/acme/android/android-ndk-r12/platforms/android-24/arch-arm/usr/include/netinet/ip6.h:82:18: error: field 'ip6_src' has incomplete type struct in6_addr ip6_src; /* source address */ And it is the canonical way of getting IPv6 definitions, as described, for instance, in Linux's 'man ipv6' Doing that uncovers another problem: this source file uses PRIu64 but doesn't include it, depending on it being included by chance via the now replaced header (netinet/ip6.h), fix it. Cc: Adrian Hunter Cc: Chris Phlipot Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Steven Rostedt Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-tilr31n3yaba1whsd47qlwa3@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add filter on task CPU id

2016-07-12T19:27:39Z

Add a 'CPU' special field to allow the filter in trace-cmd report to filter on the task's CPU. By adding a special field 'CPU' (all caps) the user can now filter out tasks based on which CPU they are on. This is useful when filtering out (or in) a bunch of threads. -F 'CPU == 0' Signed-off-by: Steven Rostedt Cc: Andrew Morton Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20160712093306.5b058103@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Use str_error_r()

2016-07-12T18:20:28Z

To make it portable to non-glibc systems, that follow the XSI variant instead of the GNU specific one that gets in place when _GNU_SOURCE is defined. Cc: Adrian Hunter Cc: David Ahern Cc: Jiri Olsa Cc: Namhyung Kim Cc: Steven Rostedt Cc: Wang Nan Link: http://lkml.kernel.org/n/tip-c1gn8x978qfop65m510wy43o@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Do not reassign parg after collapse_tree()

2016-05-12T14:27:00Z

At the end of process_filter(), collapse_tree() was changed to update the parg parameter, but the reassignment after the call wasn't removed. What happens is that the "current_op" gets modified and freed and parg is assigned to the new allocated argument. But after the call to collapse_tree(), parg is assigned again to the just freed "current_op", and this causes the tool to crash. The current_op variable must also be assigned to NULL in case of error, otherwise it will cause it to be free()ed twice. Signed-off-by: Steven Rostedt Acked-by: Namhyung Kim Cc: stable@vger.kernel.org # 3.14+ Fixes: 42d6194d133c ("tools lib traceevent: Refactor process_filter()") Link: http://lkml.kernel.org/r/20160511150936.678c18a1@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Remove redundant CPU output

2016-03-23T18:08:12Z

Commit a6745330789f ("tools lib traceevent: Split pevent_print_event() into specific functionality functions") broke apart the function pevent_print_event() into three functions. The first function prints the comm, pid and CPU, the second prints the timestamp. But that commit added the printing of the CPU in the timestamp function, which now causes pevent_print_event() to duplicate the CPU output. Remove the redundant printing of the record's CPU from the timestamp function. Signed-off-by: Steven Rostedt Cc: Namhyung Kim Fixes: a6745330789f ("tools lib traceevent: Split pevent_print_event() into specific functionality functions") Link: http://lkml.kernel.org/r/20160323101628.459375d2@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Add '~' operation within arg_num_eval()

2016-03-10T19:27:41Z

When evaluating values for print flags, if the value included a '~' operator, the parsing would fail. This broke kmalloc's parsing of: __print_flags(REC->gfp_flags, "|", {(unsigned long)((((((( gfp_t)(0x400000u|0x2000000u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) | (( gfp_t)0x20000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u)) | (( gfp_t)0x4000u) | (( gfp_t)0x10000u) | (( gfp_t)0x1000u) | (( gfp_t)0x200u)) & ~(( gfp_t)0x2000000u)) ^ | here Signed-off-by: Steven Rostedt Reported-by: Arnaldo Carvalho de Melo Tested-by: David Ahern Cc: Andi Kleen Cc: Jiri Olsa Cc: Namhyung Kim Cc: Peter Zijlstra Cc: Stephane Eranian Cc: Wang Nan Link: http://lkml.kernel.org/r/20160226181328.22f47129@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Fix output of %llu for 64 bit values read on 32 bit machines

2016-03-03T14:10:38Z

When a long value is read on 32 bit machines for 64 bit output, the parsing needs to change "%lu" into "%llu", as the value is read natively. Unfortunately, if "%llu" is already there, the code will add another "l" to it and fail to parse it properly. Signed-off-by: Steven Rostedt Cc: Andrew Morton Link: http://lkml.kernel.org/r/20160209204237.337024613@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Set int_array fields to NULL if freeing from error

2016-03-03T14:10:38Z

Had a bug where on error of parsing __print_array() where the fields are freed after they were allocated, but since they were not set to NULL, the freeing of the arg also tried to free the already freed fields causing a double free. Fix process_hex() while at it. Signed-off-by: Steven Rostedt Cc: Andrew Morton Link: http://lkml.kernel.org/r/20160209204237.188327674@goodmis.org Signed-off-by: Arnaldo Carvalho de Melo