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trace: add meson trace func [2/2]

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PD#164734: meson: Aid to kernel debug

echo 1 >
/sys/kernel/debug/tracing/events/meson_atrace/tracing_mark_write/enable

Change-Id: I11d56296ae8f5bd7427b292b0c98c6b4541b6faa
Signed-off-by: binqi.zhang <binqi.zhang@amlogic.com>
This commit is contained in:
binqi.zhang
2018-04-13 14:08:14 +08:00
committed by Yixun Lan
parent 4ad0ec9c9a
commit ff2cc992f3
2 changed files with 71 additions and 0 deletions
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4
MAINTAINERS
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@@ -13674,6 +13674,10 @@ AMLOGIC GPU DEVICETREE
M: Jiyu Yang <jiyu.yang@amlogic.com>
F: arch/arm64/boot/dts/amlogic/mesongxtvbb-gpu-t83x.dtsi
AMLOGIC GPU SYSTRACE
M: Binqi Zhang <binqi.zhang@amlogic.com>
F: include/trace/events/meson_atrace.h
AMLOGIC VRTC DRIVER
M: Yun Cai <yun.cai@amlogic.com>
F: drivers/amlogic/vrtc/

67
include/trace/events/meson_atrace.h Normal file
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@@ -0,0 +1,67 @@
/*
* meson_atrace.h
*/
/*
* This file enables ftrace logging in a way that
* atrace/systrace would understand
* without any custom javascript change in chromium-trace
*/
#undef TRACE_SYSTEM
#define TRACE_SYSTEM meson_atrace
#if !defined(_TRACE_MESON_BASE_H) || defined(TRACE_HEADER_MULTI_READ)
#define _TRACE_MESON_BASE_H
#include <linux/tracepoint.h>
#define KERNEL_ATRACE_COUNTER 0
#define KERNEL_ATRACE_BEGIN 1
#define KERNEL_ATRACE_END 2
#define print_flags_header(flags) __print_flags(flags, "", \
{ (1UL << KERNEL_ATRACE_COUNTER), "C" }, \
{ (1UL << KERNEL_ATRACE_BEGIN), "B" }, \
{ (1UL << KERNEL_ATRACE_END), "E" })
#define print_flags_delim(flags) __print_flags(flags, "", \
{ (1UL << KERNEL_ATRACE_COUNTER), "|1|" }, \
{ (1UL << KERNEL_ATRACE_BEGIN), "|1|" }, \
{ (1UL << KERNEL_ATRACE_END), "" })
TRACE_EVENT(tracing_mark_write,
TP_PROTO(const char *name, unsigned int flags, unsigned int value),
TP_ARGS(name, flags, value),
TP_STRUCT__entry(
__string(name, name)
__field(unsigned int, flags)
__field(unsigned int, value)
),
TP_fast_assign(
__assign_str(name, name);
__entry->flags = flags;
__entry->value = value;
),
TP_printk("%s%s%s|%u", print_flags_header(__entry->flags),
print_flags_delim(__entry->flags),
__get_str(name), __entry->value)
);
#define ATRACE_COUNTER(name, value) \
trace_tracing_mark_write(name, (1 << KERNEL_ATRACE_COUNTER), value)
#define ATRACE_BEGIN(name) \
trace_tracing_mark_write(name, (1 << KERNEL_ATRACE_BEGIN), 0)
#define ATRACE_END(name) \
trace_tracing_mark_write("", (1 << KERNEL_ATRACE_END), 1)
#endif /* _TRACE_MESON_BASE_H */
/* This part must be outside protection */
#include <trace/define_trace.h>