diff options
Diffstat (limited to 'drivers/staging/sep/sep_trace_events.h')
| -rw-r--r-- | drivers/staging/sep/sep_trace_events.h | 193 |
1 files changed, 0 insertions, 193 deletions
diff --git a/drivers/staging/sep/sep_trace_events.h b/drivers/staging/sep/sep_trace_events.h deleted file mode 100644 index 74f4c9a..0000000 --- a/drivers/staging/sep/sep_trace_events.h +++ /dev/null @@ -1,193 +0,0 @@ -/* - * If TRACE_SYSTEM is defined, that will be the directory created - * in the ftrace directory under /sys/kernel/debug/tracing/events/<system> - * - * The define_trace.h below will also look for a file name of - * TRACE_SYSTEM.h where TRACE_SYSTEM is what is defined here. - * In this case, it would look for sample.h - * - * If the header name will be different than the system name - * (as in this case), then you can override the header name that - * define_trace.h will look up by defining TRACE_INCLUDE_FILE - * - * This file is called trace-events-sample.h but we want the system - * to be called "sample". Therefore we must define the name of this - * file: - * - * #define TRACE_INCLUDE_FILE trace-events-sample - * - * As we do an the bottom of this file. - * - * Notice that TRACE_SYSTEM should be defined outside of #if - * protection, just like TRACE_INCLUDE_FILE. - */ -#undef TRACE_SYSTEM -#define TRACE_SYSTEM sep - -/* - * Notice that this file is not protected like a normal header. - * We also must allow for rereading of this file. The - * - * || defined(TRACE_HEADER_MULTI_READ) - * - * serves this purpose. - */ -#if !defined(_TRACE_SEP_EVENTS_H) || defined(TRACE_HEADER_MULTI_READ) -#define _TRACE_SEP_EVENTS_H - -#ifdef SEP_PERF_DEBUG -#define SEP_TRACE_FUNC_IN() trace_sep_func_start(__func__, 0) -#define SEP_TRACE_FUNC_OUT(branch) trace_sep_func_end(__func__, branch) -#define SEP_TRACE_EVENT(branch) trace_sep_misc_event(__func__, branch) -#else -#define SEP_TRACE_FUNC_IN() -#define SEP_TRACE_FUNC_OUT(branch) -#define SEP_TRACE_EVENT(branch) -#endif - - -/* - * All trace headers should include tracepoint.h, until we finally - * make it into a standard header. - */ -#include <linux/tracepoint.h> - -/* - * Since use str*cpy in header file, better to include string.h, directly. - */ -#include <linux/string.h> - -/* - * The TRACE_EVENT macro is broken up into 5 parts. - * - * name: name of the trace point. This is also how to enable the tracepoint. - * A function called trace_foo_bar() will be created. - * - * proto: the prototype of the function trace_foo_bar() - * Here it is trace_foo_bar(char *foo, int bar). - * - * args: must match the arguments in the prototype. - * Here it is simply "foo, bar". - * - * struct: This defines the way the data will be stored in the ring buffer. - * There are currently two types of elements. __field and __array. - * a __field is broken up into (type, name). Where type can be any - * type but an array. - * For an array. there are three fields. (type, name, size). The - * type of elements in the array, the name of the field and the size - * of the array. - * - * __array( char, foo, 10) is the same as saying char foo[10]. - * - * fast_assign: This is a C like function that is used to store the items - * into the ring buffer. - * - * printk: This is a way to print out the data in pretty print. This is - * useful if the system crashes and you are logging via a serial line, - * the data can be printed to the console using this "printk" method. - * - * Note, that for both the assign and the printk, __entry is the handler - * to the data structure in the ring buffer, and is defined by the - * TP_STRUCT__entry. - */ -TRACE_EVENT(sep_func_start, - - TP_PROTO(const char *name, int branch), - - TP_ARGS(name, branch), - - TP_STRUCT__entry( - __array(char, name, 20) - __field(int, branch) - ), - - TP_fast_assign( - strlcpy(__entry->name, name, 20); - __entry->branch = branch; - ), - - TP_printk("func_start %s %d", __entry->name, __entry->branch) -); - -TRACE_EVENT(sep_func_end, - - TP_PROTO(const char *name, int branch), - - TP_ARGS(name, branch), - - TP_STRUCT__entry( - __array(char, name, 20) - __field(int, branch) - ), - - TP_fast_assign( - strlcpy(__entry->name, name, 20); - __entry->branch = branch; - ), - - TP_printk("func_end %s %d", __entry->name, __entry->branch) -); - -TRACE_EVENT(sep_misc_event, - - TP_PROTO(const char *name, int branch), - - TP_ARGS(name, branch), - - TP_STRUCT__entry( - __array(char, name, 20) - __field(int, branch) - ), - - TP_fast_assign( - strlcpy(__entry->name, name, 20); - __entry->branch = branch; - ), - - TP_printk("misc_event %s %d", __entry->name, __entry->branch) -); - - -#endif - -/***** NOTICE! The #if protection ends here. *****/ - - -/* - * There are several ways I could have done this. If I left out the - * TRACE_INCLUDE_PATH, then it would default to the kernel source - * include/trace/events directory. - * - * I could specify a path from the define_trace.h file back to this - * file. - * - * #define TRACE_INCLUDE_PATH ../../samples/trace_events - * - * But the safest and easiest way to simply make it use the directory - * that the file is in is to add in the Makefile: - * - * CFLAGS_trace-events-sample.o := -I$(src) - * - * This will make sure the current path is part of the include - * structure for our file so that define_trace.h can find it. - * - * I could have made only the top level directory the include: - * - * CFLAGS_trace-events-sample.o := -I$(PWD) - * - * And then let the path to this directory be the TRACE_INCLUDE_PATH: - * - * #define TRACE_INCLUDE_PATH samples/trace_events - * - * But then if something defines "samples" or "trace_events" as a macro - * then we could risk that being converted too, and give us an unexpected - * result. - */ -#undef TRACE_INCLUDE_PATH -#undef TRACE_INCLUDE_FILE -#define TRACE_INCLUDE_PATH . -/* - * TRACE_INCLUDE_FILE is not needed if the filename and TRACE_SYSTEM are equal - */ -#define TRACE_INCLUDE_FILE sep_trace_events -#include <trace/define_trace.h> |
