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2012-10-16tools lib traceevent: Fix missed freeing of subargs in free_arg() in filterSteven Rostedt
Some of args were missed in free_args(), as well as subargs. That is args like FILTER_ARG_NUM have left and right pointers to other args that also need to be freed. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1349137408.22822.135.camel@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-10-16lib tools traceevent: Add back pevent assignment in __pevent_parse_format()Steven Rostedt
Even though with the change of commit commit 2b29175 "tools lib traceevent: Carve out events format parsing routine", allowed __pevent_parse_format() to parse an event without the need of a pevent handler, the event still needs to assign the pevent handed to it. There's no problem with assigning it if the pevent is NULL, as the event->pevent would be NULL without the assignment. But function parsing handlers may be assigned to the pevent handler to help in parsing the event. If there's no pevent then there would not be any function handlers, but if the pevent isn't assigned first before parsing the event, it wont honor the function handlers that were assigned. Worse yet, the current code crashes if an event has a function that it tries to parse. For example: # perf record -e scsi:scsi_dispatch_cmd_timeout Segmentation fault (core dumped) This happens because the scsi_dispatch_cmd_timeout event format has the following: scsi_trace_parse_cdb(p, __get_dynamic_array(cmnd), REC->cmd_len) which hasn't been defined by the pevent code. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/r/1349136831.22822.133.camel@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-25tools lib traceevent: Fix error path on pevent_parse_eventNamhyung Kim
If __pevent_parse_format() succeeded but add_event() failed, 'ret' didn't have a proper error code. Set it to PEVENT_ERRNO__MEM_ALLOC_FAILED. In addition, at that point 'event' also has fields and format information and they all need to be freed. Call pevent_free_format() to handle it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1348575919-4954-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Handle alloc_arg failureNamhyung Kim
Now alloc_arg returns NULL if memory allocation failed, it should be handled on callsites properly. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/87k3vpzbqo.fsf_-_@sejong.aot.lge.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Carve out events format parsing routineArnaldo Carvalho de Melo
The pevent_parse_event() routine will parse a events/sys/tp/format file and add an event_format instance to the pevent struct. This patch introduces a pevent_parse_format() routine with just the bits needed to parse the event/sys/tp/format file and just return the event_format instance, useful for when all we want is to parse the format file, without requiring the pevent struct. Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-lge0afl47arh86om0m6a5bqr@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Remove some die() callsArnaldo Carvalho de Melo
Cleaned event-parse.c this time, just propagate the errors and in handle them the call sites. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-9ebpr2vgfk2qs2841i99sa8y@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Fix afterlife gotosArnaldo Carvalho de Melo
Instead of dying, just use do_warning and let the goto that is there to take place. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-aoaus46ngnt9oc2pt7ckot5d@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Use calloc were applicableArnaldo Carvalho de Melo
Replacing the equivalent open coded malloc + memset bits. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-598fjtjbzal4wxh7fp0yv0q1@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Use asprintf were applicableArnaldo Carvalho de Melo
Replacing the equivalent open coded malloc + sprintf bits. Reviewed-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-ghokwtdw2hgmmmn7oa9s03r4@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Free field if an error occurs on process_flags/symbolsNamhyung Kim
The field should be freed on error paths. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1348037924-17568-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Free field if an error occurs on process_fieldsNamhyung Kim
The field should be freed on error paths. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1348037924-17568-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Make sure that arg->op.right is set properlyNamhyung Kim
When process_op failed, @arg will be freed on a caller with type of PRINT_OP. Thus free_arg() will try to free ->op.right field which can have stale value if something bad happens in the middle. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1348037924-17568-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-24tools lib traceevent: Fix error path on process_array()Namhyung Kim
free_token() under out_free should be called with 'token' and no need to set *tok to NULL since it's set already. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1348037924-17568-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-14tools lib traceevent: Define _GNU_SOURCE in MakefileArnaldo Carvalho de Melo
For the reasons stated on: commit 0a84f00 Author: David Daney <david.daney@cavium.com> perf tools: Fix broken build by defining _GNU_SOURCE in Makefile Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: David Ahern <dsahern@gmail.com> Cc: David Daney <david.daney@cavium.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Mike Galbraith <efault@gmx.de> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Stephane Eranian <eranian@google.com> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-e2nofbmj4uf0ykgsytxvt9pu@git.kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-11perf tools: Use __maybe_used for unused variablesIrina Tirdea
perf defines both __used and __unused variables to use for marking unused variables. The variable __used is defined to __attribute__((__unused__)), which contradicts the kernel definition to __attribute__((__used__)) for new gcc versions. On Android, __used is also defined in system headers and this leads to warnings like: warning: '__used__' attribute ignored __unused is not defined in the kernel and is not a standard definition. If __unused is included everywhere instead of __used, this leads to conflicts with glibc headers, since glibc has a variables with this name in its headers. The best approach is to use __maybe_unused, the definition used in the kernel for __attribute__((unused)). In this way there is only one definition in perf sources (instead of 2 definitions that point to the same thing: __used and __unused) and it works on both Linux and Android. This patch simply replaces all instances of __used and __unused with __maybe_unused. Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Acked-by: Pekka Enberg <penberg@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1347315303-29906-7-git-send-email-irina.tirdea@intel.com [ committer note: fixed up conflict with a116e05 in builtin-sched.c ] Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-07tools lib traceevent: replace mempcpy with memcpyIrina Tirdea
The mempcpy function is not supported by bionic in Android and will lead to compilation errors. Replacing mempcpy with memcpy so it will work in Android. Signed-off-by: Irina Tirdea <irina.tirdea@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Namhyung Kim <namhyung.kim@lge.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1347065004-15306-11-git-send-email-irina.tirdea@intel.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-07tools lib traceevent: Get rid of die() from pevent_register_print_functionNamhyung Kim
If memory allocation for handler fails or argument type is not match, return gracefully instead of calling die(). Also add an new error code for the later case. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1346986187-5170-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-07tools lib traceevent: Get rid of die() from pevent_register_event_handlerNamhyung Kim
If memory allocation for handler fails, return gracefully instead of calling die(). Note that casts to void * are needed because gcc complained about discarding 'const' qualifier during implicit argument cast. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1346986187-5170-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-07tools lib traceevent: Get rid of die() from pretty_print()Namhyung Kim
There are three cases that call die() in the pretty_print. 1. insufficient number of argument: cannot proceed anymore. 2. too long format conversion specifier: truncate and proceed. 3. bad size specifier in format string: skip and proceed. For all cases, convert die to do_warning, mark the event as EVENT_FL_FAILED and print error message at the last. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1346986187-5170-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-09-05tools lib traceevent: Modify header to work in C++ programsSteven Rostedt
Replace keyword "private" to "priv" in event-parse.h to allow it to be used in C++ programs. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/1345735321.5069.62.camel@gandalf.local.home Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-23tools lib traceevent: Fix off-by-one bug in pevent_strerror()Namhyung Kim
As pevent_errno is defined using PEVENT_ERRORS which uses _PE macro magic, the first errno is bigger than __PEVENT_ERRNO_START by 1. So we need to subtract the 1 also when calculating the index of the error strings. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1345707420-21767-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-22tools lib traceevent: Fix strerror_r() use in pevent_strerrorNamhyung Kim
glibc-2.16 starts to mark the function with attribute warn_unused_result so that it can cause a build warning. Since GNU version of strerror_r() can return a pointer to a string without setting @buf, check the return value and copy/truncate it to our buffer if needed. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Kirill A. Shutemov <kirill@shutemov.name> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Kirill A. Shutemov <kirill@shutemov.name> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1345618831-9148-5-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-22tools lib traceevent: Introduce pevent_strerrorNamhyung Kim
The pevent_strerror() sets @buf to a string that describes the (libtraceevent-specific) error condition that is passed via @errnum. This is similar to strerror_r() and does same thing if @errnum has a standard errno value. To sync error string with its code, define PEVENT_ERRORS with _PE() macro and use it as suggested by Steven. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1345618831-9148-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-22tools lib traceevent: Introduce pevent_errnoNamhyung Kim
Define and use error numbers for pevent_parse_event() and get rid of die() and do_warning() calls. If the function returns non-zero value, the caller can check the return code and do appropriate things. I chose the error numbers to be negative not to clash with standard errno, and as usual, 0 for success. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1345618831-9148-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-22tools lib traceevent: Do not link broken field arg for an old ftrace eventNamhyung Kim
Defer linking a newly allocated arg to print_fmt.args until all of its field is setup so that later access to ->field.name cannot be NULL. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1345618831-9148-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-08-08tools lib traceevent: Fix cast from pointer to integer for 32 bitRobert Richter
Fixing the integer cast reported by the following warning: tools/lib/traceevent/event-parse.c:3488:14: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] Signed-off-by: Robert Richter <robert.richter@amd.com> Cc: Ingo Molnar <mingo@kernel.org> Link: http://lkml.kernel.org/r/1344361396-7237-5-git-send-email-robert.richter@amd.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25tools lib traceevent: Ignore TRACEEVENT-CFLAGS fileNamhyung Kim
The TRACEEVENT-CFLAGS file is used to detect any change on compiler flags. Just ignore it. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1341559297-25725-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-25tools lib traceevent: Detect build environment changesNamhyung Kim
Cross compiling perf requires setting ARCH and CROSS_COMPILE variables, but libtraceevent couldn't detect the changes so it ends up believing no recompiling is required. Thus the linker failed like: LINK perf ../lib/traceevent//libtraceevent.a: member ../lib/traceevent//libtraceevent.a(event-parse.o) in archive is not an object collect2: ld returned 1 exit status make: *** [perf] Error 1 This patch fixes this by adding TRACEEVENT-CFLAGS file like PERF-CFLAGS to track those changes. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1341559297-25725-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-07-04tools lib traceevent: Cleanup realloc useNamhyung Kim
The if branch is completely unnecessary since 'realloc' can handle NULL pointers for the first parameter. This patch is just an adoption of Ulrich Drepper's recent patch on perf tools. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ulrich Drepper <drepper@gmail.com> Link: http://lkml.kernel.org/r/1335230984-7613-1-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Add missing break in make_bprint_argsPeter Huewe
In the current code we assign vsize=8 and then fall through to the default and assign vsize=1. -> probably the break is missing here, otherwise we can remove the case. Signed-off-by: Peter Huewe <peterhuewe@gmx.de> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-3fxjy46h2tr9pl0spv7tems6@git.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Check return value of arg_to_str()Namhyung Kim
The arg_to_str() can fail so we should handle that case properly. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1335157118-14658-12-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Check result of malloc() during reading tokenNamhyung Kim
The malloc can fail so the return value should be checked. For now, just use malloc_or_die(). Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1335157118-14658-10-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Fix some commentsNamhyung Kim
Update and add missing argument descriptions and fix some typo on function comments. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1335157118-14658-9-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Do not call add_event() again if allocation failedNamhyung Kim
When memory allocation for the field name is failed, do not goto event_failed since we added the event already. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1335157118-14658-8-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Pass string type argument to argsNamhyung Kim
It seems PEVENT_FUNC_ARG_STRING missed passing the allocated string to the args array. Fix it. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Namhyung Kim <namhyung@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1335157118-14658-7-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Handle realloc() failure pathNamhyung Kim
The realloc can fail so that we should handle it properly. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1333940074-19052-7-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Handle strdup failure casesNamhyung Kim
There were some places didn't check return value of the strdup and had unneeded/duplicated checks. Fix it. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1333940074-19052-5-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Introduce extend_token()Namhyung Kim
The __read_token() function has some duplicated code to handle internal buffer overflow. Factor them out to new extend_token(). According to the man pages of realloc/free(3), they can handle NULL pointer input so that it can be ended up to compact the code. Also handle error path correctly. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1333940074-19052-4-git-send-email-namhyung.kim@lge.com [rostedt@goodmis.org: added some extra whitespace] Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Fix printk_cmp()Namhyung Kim
The printk_cmp function should use printk_map instead of func_map. Also rename the variables for consistency. Signed-off-by: Namhyung Kim <namhyung.kim@lge.com> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Arnaldo Carvalho de Melo <acme@infradead.org> Cc: Borislav Petkov <bp@alien8.de> Cc: David Ahern <dsahern@gmail.com> Link: http://lkml.kernel.org/r/1333940074-19052-3-git-send-email-namhyung.kim@lge.com Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Fix trace_printk for long integersWolfgang Mauerer
On 32 bit systems, a conversion of the trace_printk format string "%lu" -> "%llu" is intended (similar for %lx etc.) when a trace was taken on a machine with 64 bit long integers. However, the current code computes the bogus transformation "%lu" -> "%u". Fix this. Besides that, the transformation is only required on systems that don't use 64 bits for long integers natively. Signed-off-by: Wolfgang Mauerer <wolfgang.mauerer@siemens.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1332411501-8059-3-git-send-email-wolfgang.mauerer@siemens.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Fix %pM print format arg handlingSteven Rostedt
When %pM is used, the arg value must be a 6 byte character that will be printed as a 6 byte MAC address. But the code does a break over the main code which updates the current processing arg to point to the next arg. If there are other print arguments after a %pM, they will be off by one. The next arg will still be processing the %pM arg. Reported-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-q3g0n1espikynsdkpbi6ue6t@git.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Add support to show migrate disable counterSteven Rostedt
The RT kernel added a migrate disable counter in all events. Add support to show this in the latency format. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-l6ulxyda952g7kua4pfsh73k@git.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Add support for "%.*s" in bprintk eventsSteven Rostedt
The arg notation of '*' in bprintks is not handled by the parser. Implement it so that they show up properly in the output and do not kill the tracer from reporting events. Reported-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-t0ctq7t1xz3ud6wv4v886jou@git.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-07-04tools lib traceevent: Let filtering numbers by string use function namesSteven Rostedt
As a pointer can be converted into a function name, let the filters work with the function name as well as with the pointer number. If the comparison expects a string, then convert numbers into functions, but only when the number is the same size as a long. Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-oxsa1qkr2eq7u8d7r0aapedu@git.kernel.org Signed-off-by: Namhyung Kim <namhyung@kernel.org>
2012-06-29tools lib traceevent: Replace malloc_or_die to plain malloc in alloc_event()Namhyung Kim
Because the only caller of the alloc_event() (pevent_parse_event) checks return value properly, it can be changed to use plain malloc. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1339396133-9839-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-06-29tools lib traceevent: Add support for __print_hex()Namhyung Kim
Since the __print_hex() function is used in print fmt now, add corresponding parser routines. This makes the output of perf script on the kvm_emulate_insn event not to fail any more. before: kvm_emulate_insn: [FAILED TO PARSE] rip=3238197797 ... after: kvm_emulate_insn: 0:c102fa25:89 10 (prot32) Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1340757701-10711-4-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-06-29tools lib traceevent: Use local variable 'field'Namhyung Kim
Use local variable 'field' to reduce typing. It is needed by later patch not to exceed 80 column. Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1340757701-10711-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-06-29tools lib traceevent: Check string is really printableNamhyung Kim
When libtraceevent parses format fields, it assumes that array of 1 byte is string but it's not always true. The kvm_emulate_insn contains 15 u8 array of insn that contains (binary) instructions. Thus when it's printed, it'll have broken output like below: kvm_emulate_insn: [FAILED TO PARSE] rip=3238197797 csbase=0 len=2 \ insn=<89>P^]<B4>& flags=5 failed=0 With this patch: kvm_emulate_insn: [FAILED TO PARSE] rip=3238197797 csbase=0 len=2 \ insn=ARRAY[89, 10, 5d, c3, 8d, b4, 26, 00, 00, 00, 00, 55, 89, e5, 3e] flags=5 failed=0 Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1340352615-20737-2-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-06-29tools lib traceevent: Make dependency files regeneratableNamhyung Kim
Ingo reported that libtraceevent doesn't clean out dependency (.d) files and it can cause a build error when the libgcc package upgraded: comet:~/tip/tools/perf> make -j SUBDIR ../lib/traceevent/ make[1]: *** No rule to make target `/usr/lib/gcc/x86_64-redhat-linux/4.7.0/include/stddef.h', needed by `event-parse.o'. Stop. make: *** [../lib/traceevent//libtraceevent.a] Error 2 So this patch makes the .d files depends on the source and header files also, so that it can be re-generated as needed. NOTE: This code is copied from the GNU make manual page (4.14 Generating Prerequisites Automatically). Reported-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Cc: David Ahern <dsahern@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Link: http://lkml.kernel.org/r/1340343462-15556-3-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
2012-06-29tools lib traceevent: Teach [ce]tags about libtraceeevent error codesNamhyung Kim
As we use a macro trick to sync each error codes with its description string, teach [ce]tags to process them properly. This patch modifies the libtraceevent's Makefile not a kernel one. Suggested-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Namhyung Kim <namhyung@kernel.org> Link: http://lkml.kernel.org/n/tip-3101nsbg52glxdqih291qj74@git.kernel.org Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@kernel.org> Cc: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/r/1340352615-20737-1-git-send-email-namhyung@kernel.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 19:24:41 +0000