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tracing: Fix anonymous unions in struct ftrace_event_call 

gcc <= 4.5.x has significant limitations with respect to initialization
of anonymous unions within structures. They need to be surrounded by
brackets, _and_ they need to be initialized in the same order in which
they appear in the structure declaration.

Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=10676
Link: http://lkml.kernel.org/r/1397077568-3156-1-git-send-email-mathieu.desnoyers@efficios.com

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
This commit is contained in:
Mathieu Desnoyers 2014-04-09 17:06:08 -04:00 committed by Steven Rostedt
parent b725dfea24
commit abb43f6998
3 changed files with 19 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
include/linux/syscalls.h
View File

@ -119,8 +119,10 @@ extern struct trace_event_functions exit_syscall_print_funcs;
static struct syscall_metadata __syscall_meta_##sname; \
static struct ftrace_event_call __used \
event_enter_##sname = { \
.name = "sys_enter"#sname, \
.class = &event_class_syscall_enter, \
{ \
.name = "sys_enter"#sname, \
}, \
.event.funcs = &enter_syscall_print_funcs, \
.data = (void *)&__syscall_meta_##sname,\
.flags = TRACE_EVENT_FL_CAP_ANY, \
@ -133,8 +135,10 @@ extern struct trace_event_functions exit_syscall_print_funcs;
static struct syscall_metadata __syscall_meta_##sname; \
static struct ftrace_event_call __used \
event_exit_##sname = { \
.name = "sys_exit"#sname, \
.class = &event_class_syscall_exit, \
{ \
.name = "sys_exit"#sname, \
}, \
.event.funcs = &exit_syscall_print_funcs, \
.data = (void *)&__syscall_meta_##sname,\
.flags = TRACE_EVENT_FL_CAP_ANY, \

12
include/trace/ftrace.h
View File

@ -470,8 +470,10 @@ static inline notrace int ftrace_get_offsets_##call( \
* };
*
* static struct ftrace_event_call event_<call> = {
* .tp = &__tracepoint_<call>,
* .class = event_class_<template>,
* {
* .tp = &__tracepoint_<call>,
* },
* .event = &ftrace_event_type_<call>,
* .print_fmt = print_fmt_<call>,
* .flags = TRACE_EVENT_FL_TRACEPOINT,
@ -606,8 +608,10 @@ static struct ftrace_event_class __used __refdata event_class_##call = { \
#define DEFINE_EVENT(template, call, proto, args) \
\
static struct ftrace_event_call __used event_##call = { \
.tp = &__tracepoint_##call, \
.class = &event_class_##template, \
{ \
.tp = &__tracepoint_##call, \
}, \
.event.funcs = &ftrace_event_type_funcs_##template, \
.print_fmt = print_fmt_##template, \
.flags = TRACE_EVENT_FL_TRACEPOINT, \
@ -621,8 +625,10 @@ __attribute__((section("_ftrace_events"))) *__event_##call = &event_##call
static const char print_fmt_##call[] = print; \
\
static struct ftrace_event_call __used event_##call = { \
.tp = &__tracepoint_##call, \
.class = &event_class_##template, \
{ \
.tp = &__tracepoint_##call, \
}, \
.event.funcs = &ftrace_event_type_funcs_##call, \
.print_fmt = print_fmt_##call, \
.flags = TRACE_EVENT_FL_TRACEPOINT, \

6
kernel/trace/trace_export.c
View File

@ -173,9 +173,11 @@ struct ftrace_event_class __refdata event_class_ftrace_##call = { \
}; \
\
struct ftrace_event_call __used event_##call = { \
.name = #call, \
.event.type = etype, \
.class = &event_class_ftrace_##call, \
{ \
.name = #call, \
}, \
.event.type = etype, \
.print_fmt = print, \
.flags = TRACE_EVENT_FL_IGNORE_ENABLE | TRACE_EVENT_FL_USE_CALL_FILTER, \
}; \