linux/tools/lib/traceevent/parse-filter.c, branch v6.0

libtraceevent: Add __rel_loc relative location attribute support

2021-12-06T20:37:22Z

Add '__rel_loc' new dynamic data location attribute which encodes the data location from the next to the field itself. This is similar to the '__data_loc' but the location offset is not from the event entry but from the next of the field. This patch adds '__rel_loc' decoding support in the libtraceevent. Link: https://lkml.kernel.org/r/163757343994.510314.13241077597729303802.stgit@devnote2 Cc: Beau Belgrave Cc: Namhyung Kim Cc: Tom Zanussi Signed-off-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware)

tools lib traceevent: Hide non API functions

2020-10-13T14:47:38Z

There are internal library functions, which are not declared as a static. They are used inside the library from different files. Hide them from the library users, as they are not part of the API. These functions are made hidden and are renamed without the prefix "tep_": tep_free_plugin_paths tep_peek_char tep_buffer_init tep_get_input_buf_ptr tep_get_input_buf tep_read_token tep_free_token tep_free_event tep_free_format_field __tep_parse_format Link: https://lore.kernel.org/linux-trace-devel/e4afdd82deb5e023d53231bb13e08dca78085fb0.camel@decadent.org.uk/ Reported-by: Ben Hutchings Signed-off-by: Tzvetomir Stoyanov (VMware) Reviewed-by: Steven Rostedt (VMware) Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/lkml/20200930110733.280534-1-tz.stoyanov@gmail.com Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Take care of return value of asprintf

2020-04-18T12:05:00Z

According to the API, if memory allocation wasn't possible, or some other error occurs, asprintf will return -1, and the contents of strp below are undefined. int asprintf(char **strp, const char *fmt, ...); This patch takes care of return value of asprintf to make it less error prone and prevent the following build warning. ignoring return value of ‘asprintf’, declared with attribute warn_unused_result [-Wunused-result] Signed-off-by: He Zhe Reviewed-by: Steven Rostedt (VMware) Cc: Tzvetomir Stoyanov Cc: hewenliang4@huawei.com Link: http://lore.kernel.org/lkml/1582163930-233692-1-git-send-email-zhe.he@windriver.com Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Fix memory leakage in filter_event

2019-12-20T21:47:50Z

It is necessary to call free_arg(arg) when add_filter_type() returns NULL in filter_event(). Signed-off-by: Hewenliang Reviewed-by: Steven Rostedt (VMware) Cc: Feilong Lin Cc: Tzvetomir Stoyanov Link: http://lore.kernel.org/lkml/20191209063549.59941-1-hewenliang4@huawei.com Signed-off-by: Arnaldo Carvalho de Melo

libtraceevent: Fix memory leakage in copy_filter_type

2019-11-22T13:48:14Z

It is necessary to free the memory that we have allocated when error occurs. Fixes: ef3072cd1d5c ("tools lib traceevent: Get rid of die in add_filter_type()") Signed-off-by: Hewenliang Reviewed-by: Steven Rostedt (VMware) Cc: Tzvetomir Stoyanov Link: http://lore.kernel.org/lkml/20191119014415.57210-1-hewenliang4@huawei.com Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Rename input arguments and local variables of libtraceevent from pevent to tep

2019-04-01T18:18:10Z

"pevent" to "tep" renaming of: - all "pevent" input arguments of libtraceevent internal functions. - all local "pevent" variables of libtraceevent. This makes the implementation consistent with the chosen naming convention, tep (trace event parser), and will avoid any confusion with the old pevent name Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-5-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190401164344.944953447@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo

perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event_filter to "tep"

2019-04-01T18:18:10Z

The member "pevent" of the struct tep_event_filter is renamed to "tep". This makes the struct consistent with the chosen naming convention: tep (trace event parser), instead of the old pevent. Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-4-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190401164344.785896189@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo

perf tools, tools lib traceevent: Rename "pevent" member of struct tep_event to "tep"

2019-04-01T18:18:10Z

The member "pevent" of the struct tep_event is renamed to "tep". This makes the struct consistent with the chosen naming convention: tep (trace event parser), instead of the old pevent. Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-3-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190401164344.627724996@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Rename input arguments of libtraceevent APIs from pevent to tep

2019-04-01T18:18:09Z

Input arguments of libtraceevent APIs are renamed from "struct tep_handle *pevent" to "struct tep_handle *tep". This makes the API consistent with the chosen naming convention: tep (trace event parser), instead of the old pevent. Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lore.kernel.org/linux-trace-devel/20190401132111.13727-2-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190401164344.465573837@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo

tools lib traceevent: Remove call to exit() from tep_filter_add_filter_str()

2019-04-01T18:18:09Z

This patch removes call to exit() from tep_filter_add_filter_str(). A library function should not force the application to exit. In the current implementation tep_filter_add_filter_str() calls exit() when a special "test_filters" mode is set, used only for debugging purposes. When this mode is set and a filter is added - its string is printed to the console and exit() is called. This patch changes the logic - when in "test_filters" mode, the filter string is still printed, but the exit() is not called. It is up to the application to track when "test_filters" mode is set and to call exit, if needed. Signed-off-by: Tzvetomir Stoyanov Cc: Andrew Morton Cc: Jiri Olsa Cc: Namhyung Kim Link: http://lkml.kernel.org/r/20190326154328.28718-9-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190401164344.121717482@goodmis.org Signed-off-by: Steven Rostedt (VMware) Signed-off-by: Arnaldo Carvalho de Melo