tools lib traceevent: Rename pevent_function* APIs

In order to make libtraceevent into a proper library, variables, data
structures and functions require a unique prefix to prevent name space
conflicts. That prefix will be "tep_" and not "pevent_". This changes
APIs: pevent_function_handler, pevent_func_handler,
pevent_func_arg_type, PEVENT_FUNC_ARG_VOID, PEVENT_FUNC_ARG_INT,
PEVENT_FUNC_ARG_LONG, PEVENT_FUNC_ARG_STRING, PEVENT_FUNC_ARG_PTRS,
PEVENT_FUNC_ARG_MAX_TYPES

Signed-off-by: Tzvetomir Stoyanov (VMware) <tz.stoyanov@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Yordan Karadzhov (VMware) <y.karadz@gmail.com>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lkml.kernel.org/r/20180808180701.935881193@goodmis.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

diff --git a/tools/lib/traceevent/event-parse.c b/tools/lib/traceevent/event-parse.c
index 01b5dbf..8d0ce0e 100644 (file)
--- a/tools/lib/traceevent/event-parse.c
+++ b/tools/lib/traceevent/event-parse.c
@@ -94,14 +94,14 @@ struct event_handler {
 
 struct pevent_func_params {
        struct pevent_func_params       *next;
-       enum pevent_func_arg_type       type;
+       enum tep_func_arg_type          type;
 };
 
-struct pevent_function_handler {
-       struct pevent_function_handler  *next;
-       enum pevent_func_arg_type       ret_type;
+struct tep_function_handler {
+       struct tep_function_handler     *next;
+       enum tep_func_arg_type          ret_type;
        char                            *name;
-       pevent_func_handler             func;
+       tep_func_handler                func;
        struct pevent_func_params       *params;
        int                             nr_args;
 };
@@ -110,7 +110,7 @@ static unsigned long long
 process_defined_func(struct trace_seq *s, void *data, int size,
                     struct event_format *event, struct print_arg *arg);
 
-static void free_func_handle(struct pevent_function_handler *func);
+static void free_func_handle(struct tep_function_handler *func);
 
 /**
  * pevent_buffer_init - init buffer for parsing
@@ -2914,10 +2914,10 @@ process_bitmask(struct event_format *event __maybe_unused, struct print_arg *arg
        return EVENT_ERROR;
 }
 
-static struct pevent_function_handler *
+static struct tep_function_handler *
 find_func_handler(struct tep_handle *pevent, char *func_name)
 {
-       struct pevent_function_handler *func;
+       struct tep_function_handler *func;
 
        if (!pevent)
                return NULL;
@@ -2932,8 +2932,8 @@ find_func_handler(struct tep_handle *pevent, char *func_name)
 
 static void remove_func_handler(struct tep_handle *pevent, char *func_name)
 {
-       struct pevent_function_handler *func;
-       struct pevent_function_handler **next;
+       struct tep_function_handler *func;
+       struct tep_function_handler **next;
 
        next = &pevent->func_handlers;
        while ((func = *next)) {
@@ -2947,7 +2947,7 @@ static void remove_func_handler(struct tep_handle *pevent, char *func_name)
 }
 
 static enum event_type
-process_func_handler(struct event_format *event, struct pevent_function_handler *func,
+process_func_handler(struct event_format *event, struct tep_function_handler *func,
                     struct print_arg *arg, char **tok)
 {
        struct print_arg **next_arg;
@@ -3008,7 +3008,7 @@ static enum event_type
 process_function(struct event_format *event, struct print_arg *arg,
                 char *token, char **tok)
 {
-       struct pevent_function_handler *func;
+       struct tep_function_handler *func;
 
        if (strcmp(token, "__print_flags") == 0) {
                free_token(token);
@@ -4132,7 +4132,7 @@ static unsigned long long
 process_defined_func(struct trace_seq *s, void *data, int size,
                     struct event_format *event, struct print_arg *arg)
 {
-       struct pevent_function_handler *func_handle = arg->func.func;
+       struct tep_function_handler *func_handle = arg->func.func;
        struct pevent_func_params *param;
        unsigned long long *args;
        unsigned long long ret;
@@ -4159,12 +4159,12 @@ process_defined_func(struct trace_seq *s, void *data, int size,
 
        for (i = 0; i < func_handle->nr_args; i++) {
                switch (param->type) {
-               case PEVENT_FUNC_ARG_INT:
-               case PEVENT_FUNC_ARG_LONG:
-               case PEVENT_FUNC_ARG_PTR:
+               case TEP_FUNC_ARG_INT:
+               case TEP_FUNC_ARG_LONG:
+               case TEP_FUNC_ARG_PTR:
                        args[i] = eval_num_arg(data, size, event, farg);
                        break;
-               case PEVENT_FUNC_ARG_STRING:
+               case TEP_FUNC_ARG_STRING:
                        trace_seq_init(&str);
                        print_str_arg(&str, data, size, event, "%s", -1, farg);
                        trace_seq_terminate(&str);
@@ -6461,7 +6461,7 @@ int tep_print_func_field(struct trace_seq *s, const char *fmt,
        return -1;
 }
 
-static void free_func_handle(struct pevent_function_handler *func)
+static void free_func_handle(struct tep_function_handler *func)
 {
        struct pevent_func_params *params;
 
@@ -6482,24 +6482,24 @@ static void free_func_handle(struct pevent_function_handler *func)
  * @func: the function to process the helper function
  * @ret_type: the return type of the helper function
  * @name: the name of the helper function
- * @parameters: A list of enum pevent_func_arg_type
+ * @parameters: A list of enum tep_func_arg_type
  *
  * Some events may have helper functions in the print format arguments.
  * This allows a plugin to dynamically create a way to process one
  * of these functions.
  *
- * The @parameters is a variable list of pevent_func_arg_type enums that
- * must end with PEVENT_FUNC_ARG_VOID.
+ * The @parameters is a variable list of tep_func_arg_type enums that
+ * must end with TEP_FUNC_ARG_VOID.
  */
 int pevent_register_print_function(struct tep_handle *pevent,
-                                  pevent_func_handler func,
-                                  enum pevent_func_arg_type ret_type,
+                                  tep_func_handler func,
+                                  enum tep_func_arg_type ret_type,
                                   char *name, ...)
 {
-       struct pevent_function_handler *func_handle;
+       struct tep_function_handler *func_handle;
        struct pevent_func_params **next_param;
        struct pevent_func_params *param;
-       enum pevent_func_arg_type type;
+       enum tep_func_arg_type type;
        va_list ap;
        int ret;
 
@@ -6532,11 +6532,11 @@ int pevent_register_print_function(struct tep_handle *pevent,
        next_param = &(func_handle->params);
        va_start(ap, name);
        for (;;) {
-               type = va_arg(ap, enum pevent_func_arg_type);
-               if (type == PEVENT_FUNC_ARG_VOID)
+               type = va_arg(ap, enum tep_func_arg_type);
+               if (type == TEP_FUNC_ARG_VOID)
                        break;
 
-               if (type >= PEVENT_FUNC_ARG_MAX_TYPES) {
+               if (type >= TEP_FUNC_ARG_MAX_TYPES) {
                        do_warning("Invalid argument type %d", type);
                        ret = TEP_ERRNO__INVALID_ARG_TYPE;
                        goto out_free;
@@ -6579,9 +6579,9 @@ int pevent_register_print_function(struct tep_handle *pevent,
  * Returns 0 if the handler was removed successully, -1 otherwise.
  */
 int pevent_unregister_print_function(struct tep_handle *pevent,
-                                    pevent_func_handler func, char *name)
+                                    tep_func_handler func, char *name)
 {
-       struct pevent_function_handler *func_handle;
+       struct tep_function_handler *func_handle;
 
        func_handle = find_func_handler(pevent, name);
        if (func_handle && func_handle->func == func) {
@@ -6819,7 +6819,7 @@ void tep_free(struct tep_handle *pevent)
        struct cmdline_list *cmdlist, *cmdnext;
        struct func_list *funclist, *funcnext;
        struct printk_list *printklist, *printknext;
-       struct pevent_function_handler *func_handler;
+       struct tep_function_handler *func_handler;
        struct event_handler *handle;
        int i;
 

diff --git a/tools/lib/traceevent/event-parse.h b/tools/lib/traceevent/event-parse.h
index 3067f52..81f3413 100644 (file)
--- a/tools/lib/traceevent/event-parse.h
+++ b/tools/lib/traceevent/event-parse.h
@@ -269,10 +269,10 @@ struct print_arg_op {
        struct print_arg        *right;
 };
 
-struct pevent_function_handler;
+struct tep_function_handler;
 
 struct print_arg_func {
-       struct pevent_function_handler  *func;
+       struct tep_function_handler     *func;
        struct print_arg                *args;
 };
 
@@ -361,16 +361,16 @@ enum event_type {
        EVENT_SQUOTE,
 };
 
-typedef unsigned long long (*pevent_func_handler)(struct trace_seq *s,
-                                            unsigned long long *args);
+typedef unsigned long long (*tep_func_handler)(struct trace_seq *s,
+                                              unsigned long long *args);
 
-enum pevent_func_arg_type {
-       PEVENT_FUNC_ARG_VOID,
-       PEVENT_FUNC_ARG_INT,
-       PEVENT_FUNC_ARG_LONG,
-       PEVENT_FUNC_ARG_STRING,
-       PEVENT_FUNC_ARG_PTR,
-       PEVENT_FUNC_ARG_MAX_TYPES
+enum tep_func_arg_type {
+       TEP_FUNC_ARG_VOID,
+       TEP_FUNC_ARG_INT,
+       TEP_FUNC_ARG_LONG,
+       TEP_FUNC_ARG_STRING,
+       TEP_FUNC_ARG_PTR,
+       TEP_FUNC_ARG_MAX_TYPES
 };
 
 enum tep_flag {
@@ -524,7 +524,7 @@ struct tep_handle {
        struct format_field *bprint_buf_field;
 
        struct event_handler *handlers;
-       struct pevent_function_handler *func_handlers;
+       struct tep_function_handler *func_handlers;
 
        /* cache */
        struct event_format *last_event;
@@ -680,11 +680,11 @@ int pevent_unregister_event_handler(struct tep_handle *pevent, int id,
                                    const char *sys_name, const char *event_name,
                                    tep_event_handler_func func, void *context);
 int pevent_register_print_function(struct tep_handle *pevent,
-                                  pevent_func_handler func,
-                                  enum pevent_func_arg_type ret_type,
+                                  tep_func_handler func,
+                                  enum tep_func_arg_type ret_type,
                                   char *name, ...);
 int pevent_unregister_print_function(struct tep_handle *pevent,
-                                    pevent_func_handler func, char *name);
+                                    tep_func_handler func, char *name);
 
 struct format_field *tep_find_common_field(struct event_format *event, const char *name);
 struct format_field *tep_find_field(struct event_format *event, const char *name);

diff --git a/tools/lib/traceevent/plugin_cfg80211.c b/tools/lib/traceevent/plugin_cfg80211.c
index c189bbc..e0421e3 100644 (file)
--- a/tools/lib/traceevent/plugin_cfg80211.c
+++ b/tools/lib/traceevent/plugin_cfg80211.c
@@ -29,10 +29,10 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
        pevent_register_print_function(pevent,
                                       process___le16_to_cpup,
-                                      PEVENT_FUNC_ARG_INT,
+                                      TEP_FUNC_ARG_INT,
                                       "__le16_to_cpup",
-                                      PEVENT_FUNC_ARG_PTR,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_PTR,
+                                      TEP_FUNC_ARG_VOID);
        return 0;
 }
 

diff --git a/tools/lib/traceevent/plugin_jbd2.c b/tools/lib/traceevent/plugin_jbd2.c
index 9b88aeb..6da955f 100644 (file)
--- a/tools/lib/traceevent/plugin_jbd2.c
+++ b/tools/lib/traceevent/plugin_jbd2.c
@@ -51,17 +51,17 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
        pevent_register_print_function(pevent,
                                       process_jbd2_dev_to_name,
-                                      PEVENT_FUNC_ARG_STRING,
+                                      TEP_FUNC_ARG_STRING,
                                       "jbd2_dev_to_name",
-                                      PEVENT_FUNC_ARG_INT,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_INT,
+                                      TEP_FUNC_ARG_VOID);
 
        pevent_register_print_function(pevent,
                                       process_jiffies_to_msecs,
-                                      PEVENT_FUNC_ARG_LONG,
+                                      TEP_FUNC_ARG_LONG,
                                       "jiffies_to_msecs",
-                                      PEVENT_FUNC_ARG_LONG,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_LONG,
+                                      TEP_FUNC_ARG_VOID);
        return 0;
 }
 

diff --git a/tools/lib/traceevent/plugin_kvm.c b/tools/lib/traceevent/plugin_kvm.c
index d71bc3f..c20f743 100644 (file)
--- a/tools/lib/traceevent/plugin_kvm.c
+++ b/tools/lib/traceevent/plugin_kvm.c
@@ -479,10 +479,10 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 
        pevent_register_print_function(pevent,
                                       process_is_writable_pte,
-                                      PEVENT_FUNC_ARG_INT,
+                                      TEP_FUNC_ARG_INT,
                                       "is_writable_pte",
-                                      PEVENT_FUNC_ARG_LONG,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_LONG,
+                                      TEP_FUNC_ARG_VOID);
        return 0;
 }
 

diff --git a/tools/lib/traceevent/plugin_scsi.c b/tools/lib/traceevent/plugin_scsi.c
index bb9aea6..ce38df7 100644 (file)
--- a/tools/lib/traceevent/plugin_scsi.c
+++ b/tools/lib/traceevent/plugin_scsi.c
@@ -417,12 +417,12 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
        pevent_register_print_function(pevent,
                                       process_scsi_trace_parse_cdb,
-                                      PEVENT_FUNC_ARG_STRING,
+                                      TEP_FUNC_ARG_STRING,
                                       "scsi_trace_parse_cdb",
-                                      PEVENT_FUNC_ARG_PTR,
-                                      PEVENT_FUNC_ARG_PTR,
-                                      PEVENT_FUNC_ARG_INT,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_PTR,
+                                      TEP_FUNC_ARG_PTR,
+                                      TEP_FUNC_ARG_INT,
+                                      TEP_FUNC_ARG_VOID);
        return 0;
 }
 

diff --git a/tools/lib/traceevent/plugin_xen.c b/tools/lib/traceevent/plugin_xen.c
index 1973dd8..2ffbd91 100644 (file)
--- a/tools/lib/traceevent/plugin_xen.c
+++ b/tools/lib/traceevent/plugin_xen.c
@@ -123,10 +123,10 @@ int TEP_PLUGIN_LOADER(struct tep_handle *pevent)
 {
        pevent_register_print_function(pevent,
                                       process_xen_hypercall_name,
-                                      PEVENT_FUNC_ARG_STRING,
+                                      TEP_FUNC_ARG_STRING,
                                       "xen_hypercall_name",
-                                      PEVENT_FUNC_ARG_INT,
-                                      PEVENT_FUNC_ARG_VOID);
+                                      TEP_FUNC_ARG_INT,
+                                      TEP_FUNC_ARG_VOID);
        return 0;
 }