From: Tzvetomir Stoyanov <tstoyanov@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v4 36/46] tools/lib/traceevent: Man pages for tep_set_function_resolver() and tep_reset_function_resolver()
Date: Fri, 8 Mar 2019 15:36:44 +0200 [thread overview]
Message-ID: <20190308133654.21264-37-tstoyanov@vmware.com> (raw)
In-Reply-To: <20190308133654.21264-1-tstoyanov@vmware.com>
Create man pages for tep_set_function_resolver() and tep_reset_function_resolver()
as part of the libtraceevent APIs.
Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
.../libtraceevent-func_resolve.txt | 96 +++++++++++++++++++
1 file changed, 96 insertions(+)
create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-func_resolve.txt
diff --git a/tools/lib/traceevent/Documentation/libtraceevent-func_resolve.txt b/tools/lib/traceevent/Documentation/libtraceevent-func_resolve.txt
new file mode 100644
index 000000000000..38b715bd926c
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-func_resolve.txt
@@ -0,0 +1,96 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_set_function_resolver,tep_reset_function_resolver - Set / reset an alternative function resolver
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+typedef char pass:[*](*tep_func_resolver_t*)(void pass:[*]_priv_, unsigned long long pass:[*]_addrp_, char pass:[**]_modp_);
+
+int *tep_set_function_resolver*(struct tep_handle pass:[*]_tep_, tep_func_resolver_t pass:[*]_func_, void pass:[*]_priv_);
+void *tep_reset_function_resolver*(struct tep_handle pass:[*]_tep_);
+--
+
+DESCRIPTION
+-----------
+Some tools may have already a way to resolve the kernel functions. These APIs
+allow them to keep using it instead of duplicating all the entries inside.
+
+The _tep_set_function_resolver()_ function registers _func_ as an alternative
+kernel functions resolver. The _tep_ argument is trace event parser context.
+The _priv_ argument is a custom context of the _func_ function.
+
+The _tep_reset_function_resolver()_ function resets the kernel functions
+resolver to the default function. The _tep_ argument is trace event parser
+context.
+
+The _tep_func_resolver_t_ type is the prototype of the alternative kernel
+functions resolver. This function receives a pointer to its custom context
+(set with the _tep_set_function_resolver()_ call ) and the address of a kernel
+function, which has to be resolved. In case of success, it should return
+the name of the function and its module (if any) in _modp_.
+
+RETURN VALUE
+------------
+The _tep_set_function_resolver()_ function returns 0 in case of success, or -1
+in case of an error.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+char *my_resolve_kernel_addr(void *context, unsigned long long *addrp, char **modp)
+{
+ return NULL;
+}
+...
+ if (tep_set_function_resolver(tep, my_resolve_kernel_addr, NULL) != 0) {
+ /* failed to register my_resolve_kernel_addr */
+ }
+...
+ tep_reset_function_resolver(tep);
+...
+--
+
+FILES
+-----
+[verse]
+--
+*event-parse.h*
+ Header file to include in order to have access to the library APIs.
+*-ltraceevent*
+ Linker switch to add when building a program that uses the library.
+--
+
+SEE ALSO
+--------
+_libtraceevent(3)_, _trace-cmd(1)_
+
+AUTHOR
+------
+[verse]
+--
+*Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to <linux-trace-devel@vger.kernel.org>
+
+LICENSE
+-------
+libtraceevent is Free Software licensed under the GNU LGPL 2.1
+
+RESOURCES
+---------
+https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
--
2.20.1
next prev parent reply other threads:[~2019-03-08 13:37 UTC|newest]
Thread overview: 80+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-08 13:36 [PATCH v4 00/46] Libtraceevent MAN pages Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 01/46] tools/lib/traceevent: Implement libtraceevent man pages Tzvetomir Stoyanov
2019-03-18 21:04 ` [Suspected Spam] " Matt Helsley
2019-03-19 11:28 ` Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 02/46] tools/lib/traceevent: Fix libtraceevent/Documentation Makefile Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 03/46] tools/lib/traceevent: Add support for man pages with multiple names Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 04/46] tools/lib/traceevent: libtraceevent Makefile "help" target Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 05/46] tools/lib/traceevent: libtraceevent man pages for tep_handler related APIs Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 06/46] tools/lib/traceevent: Man page for tep_get_header_page_size() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 07/46] tools/lib/traceevent: Man page for tep_get_cpus() and tep_set_cpus() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 08/46] tools/lib/traceevent: Man page for tep_is_file_bigendian() and tep_set_file_bigendian() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 09/46] tools/lib/traceevent: Man page for tep_is_host_bigendian() and tep_set_host_bigendian() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 10/46] tools/lib/traceevent: Man page for tep_is_latency_format() and tep_set_latency_format() Tzvetomir Stoyanov
2019-03-13 16:28 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 11/46] tools/lib/traceevent: Man page for tep_get_page_size() and tep_set_page_size() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 12/46] tools/lib/traceevent: Man page for tep_strerror() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 13/46] tools/lib/traceevent: Man page for tep_register_trace_clock() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 14/46] tools/lib/traceevent: Man pages for tep_register_event_handler() and tep_unregister_event_handler() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 15/46] tools/lib/traceevent: Man pages for tep_register_function() and tep_register_print_string() Tzvetomir Stoyanov
2019-03-13 16:57 ` Steven Rostedt
2019-03-13 16:59 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 16/46] tools/lib/traceevent: Man pages for tep_register_print_function() and tep_unregister_print_function() Tzvetomir Stoyanov
2019-03-13 17:23 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 17/46] tools/lib/traceevent: Man page for tep_read_number() Tzvetomir Stoyanov
2019-03-13 17:26 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 18/46] tools/lib/traceevent: Man pages for tep_find_event(), tep_find_event_by_name() and tep_find_event_by_record() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 19/46] tools/lib/traceevent: Man page for tep_list_events() Tzvetomir Stoyanov
2019-03-13 17:29 ` Steven Rostedt
2019-03-14 13:05 ` Tzvetomir Stoyanov
2019-03-14 13:39 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 20/46] tools/lib/traceevent: Man pages for tep_print_event(), tep_print_event_data(), tep_event_info(), tep_print_event_task() and tep_print_event_time() Tzvetomir Stoyanov
2019-03-13 17:33 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 21/46] tools/lib/traceevent: Man pages tep_get_first_event() and tep_get_events_count() Tzvetomir Stoyanov
2019-03-13 17:35 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 22/46] tools/lib/traceevent: Man pages tep_find_common_field(), tep_find_field() and tep_find_any_field() Tzvetomir Stoyanov
2019-03-13 17:42 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 23/46] tools/lib/traceevent: Man pages tep_get_any_field_val(), tep_get_common_field_val(), tep_get_field_val() and tep_get_field_raw() Tzvetomir Stoyanov
2019-03-13 18:36 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 24/46] tools/lib/traceevent: Man pages for tep_print_field(), tep_print_fields(), tep_print_num_field() and tep_print_func_field() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 25/46] tools/lib/traceevent: Man page for tep_read_number_field() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 26/46] tools/lib/traceevent: Man pages for tep_event_common_fields() and tep_event_fields() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 27/46] tools/lib/traceevent: Man pages for tep_filter_alloc(), tep_filter_free() and tep_filter_reset() Tzvetomir Stoyanov
2019-03-13 19:11 ` Steven Rostedt
2019-03-13 19:13 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 28/46] tools/lib/traceevent: Man page for tep_filter_add_filter_str() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 29/46] tools/lib/traceevent: Man page for tep_filter_strerror() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 30/46] tools/lib/traceevent: Man pages for tep_event_filtered() and tep_filter_remove_event() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 31/46] tools/lib/traceevent: Man page for tep_filter_match() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 32/46] tools/lib/traceevent: Man pages for tep_filter_copy() and tep_filter_compare() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 33/46] tools/lib/traceevent: Man page for tep_filter_make_string() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 34/46] tools/lib/traceevent: Man pages for tep_filter_event_has_trivial(), tep_update_trivial() and tep_filter_clear_trivial() Tzvetomir Stoyanov
2019-03-13 20:04 ` Steven Rostedt
2019-03-15 12:26 ` Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 35/46] tools/lib/traceevent: Man pages for tep_find_function() and tep_find_function_address() Tzvetomir Stoyanov
2019-03-13 20:05 ` Steven Rostedt
2019-03-08 13:36 ` Tzvetomir Stoyanov [this message]
2019-03-13 20:06 ` [PATCH v4 36/46] tools/lib/traceevent: Man pages for tep_set_function_resolver() and tep_reset_function_resolver() Steven Rostedt
2019-03-19 19:08 ` Matt Helsley
2019-03-08 13:36 ` [PATCH v4 37/46] tools/lib/traceevent: Man pages for tep_parse_event() and tep_parse_format() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 38/46] tools/lib/traceevent: Man page for tep_parse_header_page() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 39/46] tools/lib/traceevent: Man pages for tep_load_plugins() and tep_unload_plugin() Tzvetomir Stoyanov
2019-03-13 20:27 ` Steven Rostedt
2019-03-13 21:42 ` Patrick McLean
2019-03-13 21:45 ` Patrick McLean
2019-03-14 0:53 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 40/46] tools/lib/traceevent: Man page for tep_data_lat_fmt() Tzvetomir Stoyanov
2019-03-13 20:32 ` Steven Rostedt
2019-03-19 19:32 ` [Suspected Spam] " Matt Helsley
2019-03-08 13:36 ` [PATCH v4 41/46] tools/lib/traceevent: Man pages for tep_data_type(), tep_data_pid(), tep_data_preempt_count() and tep_data_flags() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 42/46] tools/lib/traceevent: Man pages for trace_seq_init() and trace_seq_destroy() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 43/46] tools/lib/traceevent: Man pages for trace_seq_do_fprintf() and trace_seq_do_printf() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 44/46] tools/lib/traceevent: Man pages for trace_seq_printf() and trace_seq_vprintf() Tzvetomir Stoyanov
2019-03-08 13:36 ` [PATCH v4 45/46] tools/lib/traceevent: Man pages for trace_seq_putc() and trace_seq_puts() Tzvetomir Stoyanov
2019-03-14 2:58 ` Steven Rostedt
2019-03-08 13:36 ` [PATCH v4 46/46] tools/lib/traceevent: Man pages for trace_seq_reset() and trace_seq_terminate() Tzvetomir Stoyanov
2019-03-08 14:19 ` [PATCH v4 00/46] Libtraceevent MAN pages Claudio
2019-03-08 15:47 ` Tzvetomir Stoyanov
2019-03-08 18:52 ` Claudio
2019-03-12 15:35 ` Steven Rostedt
2019-03-13 11:24 ` Claudio
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