Staging: lttng: remove from the drivers/staging/ tree

The "proper" way to do this is to work with the existing in-kernel
tracing subsystem and work to get the missing features that are in lttng
into those subsystems.

Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/Kconfig

@@ -66,8 +66,6 @@ source "drivers/staging/phison/Kconfig"
 
 source "drivers/staging/line6/Kconfig"
 
-source "drivers/staging/lttng/Kconfig"
-
 source "drivers/gpu/drm/nouveau/Kconfig"
 
 source "drivers/staging/octeon/Kconfig"

drivers/staging/Makefile

@@ -25,7 +25,6 @@ obj-$(CONFIG_TRANZPORT)		+= frontier/
 obj-$(CONFIG_POHMELFS)		+= pohmelfs/
 obj-$(CONFIG_IDE_PHISON)	+= phison/
 obj-$(CONFIG_LINE6_USB)		+= line6/
-obj-$(CONFIG_LTTNG)		+= lttng/
 obj-$(CONFIG_USB_SERIAL_QUATECH2)	+= serqt_usb2/
 obj-$(CONFIG_USB_SERIAL_QUATECH_USB2)	+= quatech_usb2/
 obj-$(CONFIG_OCTEON_ETHERNET)	+= octeon/

drivers/staging/lttng/Kconfig

-config LTTNG
-	tristate "LTTng kernel tracer"
-	depends on TRACEPOINTS
-	help
-	  The LTTng 2.0 Tracer Toolchain allows integrated kernel and
-	  user-space tracing from a single user interface: the "lttng"
-	  command. See http://lttng.org website for the "lttng-tools"
-	  user-space tracer control tools package and the "babeltrace"
-	  package for conversion of trace data to a human-readable
-	  format.
-
-	  LTTng features:
-	  - System-wide tracing across kernel, libraries and
-	    applications,
-	  - Tracepoints, detailed syscall tracing (fast strace replacement),
-	    Function tracer, CPU Performance Monitoring Unit (PMU) counters
-	    and kprobes support,
-	  - Have the ability to attach "context" information to events in the
-	    trace (e.g. any PMU counter, pid, ppid, tid, comm name, etc). All
-	    the extra information fields to be collected with events are
-	    optional, specified on a per-tracing-session basis (except for
-	    timestamp and event id, which are mandatory).
-	  - Precise and fast clock sources with near cycle-level
-	    timestamps,
-	  - Efficient trace data transport:
-	    - Compact Binary format with CTF,
-	    - Per-core buffers ensures scalability,
-	    - Fast-paths in caller context, amortized synchronization,
-	    - Zero-copy using splice and mmap system calls, over disk,
-	      network or consumed in-place,
-	  - Multiple concurrent tracing sessions are supported,
-	  - Designed to meet hard real-time constraints,
-	  - Supports live streaming of the trace data,
-	  - Produces CTF (Common Trace Format) natively (see
-	    http://www.efficios.com/ctf).

drivers/staging/lttng/LICENSE

-LTTng modules licensing
-Mathieu Desnoyers
-June 2, 2011
-
-* LGPLv2.1/GPLv2 dual-license
-
-The files contained within this package are licensed under
-LGPLv2.1/GPLv2 dual-license (see lgpl-2.1.txt and gpl-2.0.txt for
-details), except for files identified by the following sections.
-
-* GPLv2 license
-
-These files are licensed exclusively under the GPLv2 license. See
-gpl-2.0.txt for details.
-
-lib/ringbuffer/ring_buffer_splice.c
-lib/ringbuffer/ring_buffer_mmap.c
-instrumentation/events/mainline/*.h
-instrumentation/events/lttng-modules/*.h
-
-* MIT-style license
-
-These files are licensed under an MIT-style license:
-
-lib/prio_heap/lttng_prio_heap.h
-lib/prio_heap/lttng_prio_heap.c
-lib/bitfield.h

drivers/staging/lttng/Makefile

-#
-# Makefile for the LTTng modules.
-#
-
-obj-m += ltt-ring-buffer-client-discard.o
-obj-m += ltt-ring-buffer-client-overwrite.o
-obj-m += ltt-ring-buffer-metadata-client.o
-obj-m += ltt-ring-buffer-client-mmap-discard.o
-obj-m += ltt-ring-buffer-client-mmap-overwrite.o
-obj-m += ltt-ring-buffer-metadata-mmap-client.o
-
-obj-m += ltt-relay.o
-ltt-relay-objs :=  ltt-events.o ltt-debugfs-abi.o \
-			ltt-probes.o ltt-context.o \
-			lttng-context-pid.o lttng-context-procname.o \
-			lttng-context-prio.o lttng-context-nice.o \
-			lttng-context-vpid.o lttng-context-tid.o \
-			lttng-context-vtid.o lttng-context-ppid.o \
-			lttng-context-vppid.o lttng-calibrate.o
-
-ifneq ($(CONFIG_HAVE_SYSCALL_TRACEPOINTS),)
-ltt-relay-objs += lttng-syscalls.o
-endif
-
-ifneq ($(CONFIG_PERF_EVENTS),)
-ltt-relay-objs += $(shell \
-	if [ $(VERSION) -ge 3 \
-		-o \( $(VERSION) -eq 2 -a $(PATCHLEVEL) -ge 6 -a $(SUBLEVEL) -ge 33 \) ] ; then \
-		echo "lttng-context-perf-counters.o" ; fi;)
-endif
-
-obj-m += probes/
-obj-m += lib/

drivers/staging/lttng/README

-LTTng 2.0 modules
-
-Mathieu Desnoyers
-November 1st, 2011
-
-LTTng 2.0 kernel modules is currently part of the Linux kernel staging
-tree. It features (new features since LTTng 0.x):
-
-- Produces CTF (Common Trace Format) natively,
-  (http://www.efficios.com/ctf)
-- Tracepoints, Function tracer, CPU Performance Monitoring Unit (PMU)
-  counters, kprobes, and kretprobes support,
-- Integrated interface for both kernel and userspace tracing,
-- Have the ability to attach "context" information to events in the
-  trace (e.g. any PMU counter, pid, ppid, tid, comm name, etc).
-  All the extra information fields to be collected with events are
-  optional, specified on a per-tracing-session basis (except for
-  timestamp and event id, which are mandatory).
-
-To build and install, you need to select "Staging" modules, and the
-LTTng kernel tracer.
-
-Use lttng-tools to control the tracer. LTTng tools should automatically
-load the kernel modules when needed. Use Babeltrace to print traces as a
-human-readable text log. These tools are available at the following URL:
-http://lttng.org/lttng2.0
-
-Please note that the LTTng-UST 2.0 (user-space tracing counterpart of
-LTTng 2.0) is now ready to be used, but still only available from the
-git repository.
-
-So far, it has been tested on vanilla Linux kernels 2.6.38, 2.6.39 and
-3.0 (on x86 32/64-bit, and powerpc 32-bit at the moment, build tested on
-ARM). It should work fine with newer kernels and other architectures,
-but expect build issues with kernels older than 2.6.36. The clock source
-currently used is the standard gettimeofday (slower, less scalable and
-less precise than the LTTng 0.x clocks).  Support for LTTng 0.x clocks
-will be added back soon into LTTng 2.0.  Please note that lttng-modules
-2.0 can build on a Linux kernel patched with the LTTng 0.x patchset, but
-the lttng-modules 2.0 replace the lttng-modules 0.x, so both tracers
-cannot be installed at the same time for a given kernel version.
-
-* Note about Perf PMU counters support
-
-Each PMU counter has its zero value set when it is attached to a context with
-add-context. Therefore, it is normal that the same counters attached to both the
-stream context and event context show different values for a given event; what
-matters is that they increment at the same rate.

drivers/staging/lttng/TODO

-Please contact Mathieu Desnoyers <mathieu.desnoyers@efficios.com> for
-questions about this TODO list. The "Cleanup/Testing" section would be
-good to go through before integration into mainline. The "Features"
-section is a wish list of features to complete before releasing the
-"LTTng 2.0" final version, but are not required to have LTTng working.
-These features are mostly performance enhancements and instrumentation
-enhancements.
-
-TODO:
-
-A) Cleanup/Testing
-
-	1) Remove debugfs "lttng" file (keep only procfs "lttng" file).
-	   The rationale for this is that this file is needed for
-	   user-level tracing support (LTTng-UST 2.0) intended to be
-	   used on production system, and therefore should be present as
-	   part of a "usually mounted" filesystem rather than a debug
-	   filesystem.
-
-	2) Cleanup wrappers. The drivers/staging/lttng/wrapper directory
-	   contains various wrapper headers that use kallsyms lookups to
-	   work around some missing EXPORT_SYMBOL_GPL() in the mainline
-	   kernel. Ideally, those few symbols should become exported to
-	   modules by the kernel.
-
-	3) Test lib ring buffer snapshot feature.
-	   When working on the lttngtop project, Julien Desfossez
-	   reported that he needed to push the consumer position
-	   forward explicitely with lib_ring_buffer_put_next_subbuf.
-	   This means that although the usual case of pairs of
-	   lib_ring_buffer_get_next_subbuf/lib_ring_buffer_put_next_subbuf
-	   work fine, there is probably a problem that needs to be
-	   investigated in
-	   lib_ring_buffer_get_subbuf/lib_ring_buffer_put_subbuf, which
-	   depend on the producer to push the reader position.
-	   Contact: Julien Desfossez <julien.desfossez@polymtl.ca>
-
-
-B) Features
-
-	1) Integration of the LTTng 0.x trace clocks into
-	   LTTng 2.0.
-	     Currently using mainline kernel monotonic clock. NMIs can
-	     therefore not be traced, and this causes a significant
-	     performance degradation compared to the LTTng 0.x trace
-	     clocks. Imply the creation of drivers/staging/lttng/arch to
-	     contain the arch-specific clock support files.
-	     * Dependency: addition of clock descriptions to CTF.
-	   See: http://git.lttng.org/?p=linux-2.6-lttng.git;a=summary
-	        for the LTTng 0.x git tree.
-
-	2) Port OMAP3 LTTng trace clocks to x86 to support systems
-	   without constant TSC.
-	    * Dependency: (B.1)
-	   See: http://git.lttng.org/?p=linux-2.6-lttng.git;a=summary
-	        for the LTTng 0.x git tree.
-
-	3) Implement mmap operation on an anonymous file created by a
-	   LTTNG_KERNEL_CLOCK ioctl to export data to export
-	   synchronized kernel and user-level LTTng trace clocks:
-	   with:
-	      - shared per-cpu data,
-	      - read seqlock.
-	   The content exported by this shared memory area will be
-	   arch-specific.
-	   * Dependency: (B.1) && (B.2)
-	   See: http://git.lttng.org/?p=linux-2.6-lttng.git;a=summary
-	        for the LTTng 0.x git tree, which has vDSO support for
-	        LTTng trace clock on the x86 architecture.
-
-	3) Integrate the "statedump" module from LTTng 0.x into LTTng
-	   2.0.
-	     * Dependency: addition of "dynamic enumerations" type to CTF.
-	   See: http://git.lttng.org/?p=lttng-modules.git;a=shortlog;h=refs/heads/v0.19-stable
-	        ltt-statedump.c
-
-	4) Generate system call TRACE_EVENT headers for all
-	   architectures (currently done: x86 32/64).
-
-	5) Define "unknown" system calls into instrumentation/syscalls
-	   override files / or do SYSCALL_DEFINE improvements to
-	   mainline kernel to allow automatic generation of these
-	   missing system call descriptions.
-
-	6) Create missing tracepoint event headers files into
-	   instrumentation/events from headers located in
-	   include/trace/events/. Choice: either do as currently done,
-	   and copy those headers locally into the lttng driver and
-	   perform the modifications locally, or push TRACE_EVENT API
-	   modification into mainline headers, which would require
-	   collaboration from Ftrace/Perf maintainers.
-
-	7) Poll: implement a poll and/or epoll exclusive wakeup scheme,
-	   which contradicts POSIX, but protect multiple consumer
-	   threads from thundering herd effect.
-
-	8) Re-integrate sample modules from libringbuffer into
-	   lttng driver. Those modules can be used as example of how to
-	   use libringbuffer in other contexts than LTTng, and are
-	   useful to perform benchmarks of the ringbuffer library.
-	   See: http://www.efficios.com/ringbuffer
-
-	9) NOHZ support for lib ring buffer. NOHZ infrastructure in the
-	   Linux kernel does not support notifiers chains, which does
-	   not let LTTng play nicely with low power consumption setups
-	   for flight recorder (overwrite mode) live traces. One way to
-	   allow integration between NOHZ and LTTng would be to add
-	   support for such notifiers into NOHZ kernel infrastructure.
-
-	10) Turn drivers/staging/lttng/ltt-probes.c probe_list into a
-	    hash table. Turns O(n^2) trace systems registration (cost
-	    for n systems) into O(n). (O(1) per system)
-
-	11) drivers/staging/lttng/probes/lttng-ftrace.c:
-	    LTTng currently uses kretprobes for per-function tracing,
-	    not the function tracer. So lttng-ftrace.c should be used
-	    for "all" function tracing.
-
-	12) drivers/staging/lttng/probes/lttng-types.c:
-	    This is a currently unused placeholder to export entire C
-	    type declarations into the trace metadata, e.g. for support
-	    of describing the layout of structures/enumeration mapping
-	    along with syscall entry events.  The design of this support
-	    will likely change though, and become integrated with the
-	    TRACE_EVENT support within lttng, by adding new macros, and
-	    support for generation of metadata from these macros, to
-	    allow description of those compound types/enumerations.
-
-Please send patches
-To: Greg Kroah-Hartman <greg@kroah.com>
-To: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

drivers/staging/lttng/instrumentation/events/README

-The workflow for updating patches from newer kernel:
-
-Diff mainline/ and lttng-module/ directories.
-
-Pull the new headers from mainline kernel to mainline/.
-Copy them into lttng-modules.
-Apply diff. Fix conflicts.

drivers/staging/lttng/instrumentation/events/lttng-module/irq.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM irq
-
-#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_IRQ_H
-
-#include <linux/tracepoint.h>
-
-#ifndef _TRACE_IRQ_DEF_
-#define _TRACE_IRQ_DEF_
-
-struct irqaction;
-struct softirq_action;
-
-#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
-#define show_softirq_name(val)				\
-	__print_symbolic(val,				\
-			 softirq_name(HI),		\
-			 softirq_name(TIMER),		\
-			 softirq_name(NET_TX),		\
-			 softirq_name(NET_RX),		\
-			 softirq_name(BLOCK),		\
-			 softirq_name(BLOCK_IOPOLL),	\
-			 softirq_name(TASKLET),		\
-			 softirq_name(SCHED),		\
-			 softirq_name(HRTIMER),		\
-			 softirq_name(RCU))
-
-#endif /* _TRACE_IRQ_DEF_ */
-
-/**
- * irq_handler_entry - called immediately before the irq action handler
- * @irq: irq number
- * @action: pointer to struct irqaction
- *
- * The struct irqaction pointed to by @action contains various
- * information about the handler, including the device name,
- * @action->name, and the device id, @action->dev_id. When used in
- * conjunction with the irq_handler_exit tracepoint, we can figure
- * out irq handler latencies.
- */
-TRACE_EVENT(irq_handler_entry,
-
-	TP_PROTO(int irq, struct irqaction *action),
-
-	TP_ARGS(irq, action),
-
-	TP_STRUCT__entry(
-		__field(	int,	irq		)
-		__string(	name,	action->name	)
-	),
-
-	TP_fast_assign(
-		tp_assign(irq, irq)
-		tp_strcpy(name, action->name)
-	),
-
-	TP_printk("irq=%d name=%s", __entry->irq, __get_str(name))
-)
-
-/**
- * irq_handler_exit - called immediately after the irq action handler returns
- * @irq: irq number
- * @action: pointer to struct irqaction
- * @ret: return value
- *
- * If the @ret value is set to IRQ_HANDLED, then we know that the corresponding
- * @action->handler scuccessully handled this irq. Otherwise, the irq might be
- * a shared irq line, or the irq was not handled successfully. Can be used in
- * conjunction with the irq_handler_entry to understand irq handler latencies.
- */
-TRACE_EVENT(irq_handler_exit,
-
-	TP_PROTO(int irq, struct irqaction *action, int ret),
-
-	TP_ARGS(irq, action, ret),
-
-	TP_STRUCT__entry(
-		__field(	int,	irq	)
-		__field(	int,	ret	)
-	),
-
-	TP_fast_assign(
-		tp_assign(irq, irq)
-		tp_assign(ret, ret)
-	),
-
-	TP_printk("irq=%d ret=%s",
-		  __entry->irq, __entry->ret ? "handled" : "unhandled")
-)
-
-DECLARE_EVENT_CLASS(softirq,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	vec	)
-	),
-
-	TP_fast_assign(
-		tp_assign(vec, vec_nr)
-	),
-
-	TP_printk("vec=%u [action=%s]", __entry->vec,
-		  show_softirq_name(__entry->vec))
-)
-
-/**
- * softirq_entry - called immediately before the softirq handler
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_exit tracepoint
- * we can determine the softirq handler runtine.
- */
-DEFINE_EVENT(softirq, softirq_entry,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-)
-
-/**
- * softirq_exit - called immediately after the softirq handler returns
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_entry tracepoint
- * we can determine the softirq handler runtine.
- */
-DEFINE_EVENT(softirq, softirq_exit,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-)
-
-/**
- * softirq_raise - called immediately when a softirq is raised
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_entry tracepoint
- * we can determine the softirq raise to run latency.
- */
-DEFINE_EVENT(softirq, softirq_raise,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-)
-
-#endif /*  _TRACE_IRQ_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"

drivers/staging/lttng/instrumentation/events/lttng-module/kvm.h

-#if !defined(_TRACE_KVM_MAIN_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_KVM_MAIN_H
-
-#include <linux/tracepoint.h>
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM kvm
-
-#define ERSN(x) { KVM_EXIT_##x, "KVM_EXIT_" #x }
-
-#define kvm_trace_exit_reason						\
-	ERSN(UNKNOWN), ERSN(EXCEPTION), ERSN(IO), ERSN(HYPERCALL),	\
-	ERSN(DEBUG), ERSN(HLT), ERSN(MMIO), ERSN(IRQ_WINDOW_OPEN),	\
-	ERSN(SHUTDOWN), ERSN(FAIL_ENTRY), ERSN(INTR), ERSN(SET_TPR),	\
-	ERSN(TPR_ACCESS), ERSN(S390_SIEIC), ERSN(S390_RESET), ERSN(DCR),\
-	ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI)
-
-TRACE_EVENT(kvm_userspace_exit,
-	    TP_PROTO(__u32 reason, int errno),
-	    TP_ARGS(reason, errno),
-
-	TP_STRUCT__entry(
-		__field(	__u32,		reason		)
-		__field(	int,		errno		)
-	),
-
-	TP_fast_assign(
-		tp_assign(reason, reason)
-		tp_assign(errno, errno)
-	),
-
-	TP_printk("reason %s (%d)",
-		  __entry->errno < 0 ?
-		  (__entry->errno == -EINTR ? "restart" : "error") :
-		  __print_symbolic(__entry->reason, kvm_trace_exit_reason),
-		  __entry->errno < 0 ? -__entry->errno : __entry->reason)
-)
-
-#if defined(__KVM_HAVE_IOAPIC)
-TRACE_EVENT(kvm_set_irq,
-	TP_PROTO(unsigned int gsi, int level, int irq_source_id),
-	TP_ARGS(gsi, level, irq_source_id),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	gsi		)
-		__field(	int,		level		)
-		__field(	int,		irq_source_id	)
-	),
-
-	TP_fast_assign(
-		tp_assign(gsi, gsi)
-		tp_assign(level, level)
-		tp_assign(irq_source_id, irq_source_id)
-	),
-
-	TP_printk("gsi %u level %d source %d",
-		  __entry->gsi, __entry->level, __entry->irq_source_id)
-)
-
-#define kvm_deliver_mode		\
-	{0x0, "Fixed"},			\
-	{0x1, "LowPrio"},		\
-	{0x2, "SMI"},			\
-	{0x3, "Res3"},			\
-	{0x4, "NMI"},			\
-	{0x5, "INIT"},			\
-	{0x6, "SIPI"},			\
-	{0x7, "ExtINT"}
-
-TRACE_EVENT(kvm_ioapic_set_irq,
-	    TP_PROTO(__u64 e, int pin, bool coalesced),
-	    TP_ARGS(e, pin, coalesced),
-
-	TP_STRUCT__entry(
-		__field(	__u64,		e		)
-		__field(	int,		pin		)
-		__field(	bool,		coalesced	)
-	),
-
-	TP_fast_assign(
-		tp_assign(e, e)
-		tp_assign(pin, pin)
-		tp_assign(coalesced, coalesced)
-	),
-
-	TP_printk("pin %u dst %x vec=%u (%s|%s|%s%s)%s",
-		  __entry->pin, (u8)(__entry->e >> 56), (u8)__entry->e,
-		  __print_symbolic((__entry->e >> 8 & 0x7), kvm_deliver_mode),
-		  (__entry->e & (1<<11)) ? "logical" : "physical",
-		  (__entry->e & (1<<15)) ? "level" : "edge",
-		  (__entry->e & (1<<16)) ? "|masked" : "",
-		  __entry->coalesced ? " (coalesced)" : "")
-)
-
-TRACE_EVENT(kvm_msi_set_irq,
-	    TP_PROTO(__u64 address, __u64 data),
-	    TP_ARGS(address, data),
-
-	TP_STRUCT__entry(
-		__field(	__u64,		address		)
-		__field(	__u64,		data		)
-	),
-
-	TP_fast_assign(
-		tp_assign(address, address)
-		tp_assign(data, data)
-	),
-
-	TP_printk("dst %u vec %x (%s|%s|%s%s)",
-		  (u8)(__entry->address >> 12), (u8)__entry->data,
-		  __print_symbolic((__entry->data >> 8 & 0x7), kvm_deliver_mode),
-		  (__entry->address & (1<<2)) ? "logical" : "physical",
-		  (__entry->data & (1<<15)) ? "level" : "edge",
-		  (__entry->address & (1<<3)) ? "|rh" : "")
-)
-
-#define kvm_irqchips						\
-	{KVM_IRQCHIP_PIC_MASTER,	"PIC master"},		\
-	{KVM_IRQCHIP_PIC_SLAVE,		"PIC slave"},		\
-	{KVM_IRQCHIP_IOAPIC,		"IOAPIC"}
-
-TRACE_EVENT(kvm_ack_irq,
-	TP_PROTO(unsigned int irqchip, unsigned int pin),
-	TP_ARGS(irqchip, pin),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	irqchip		)
-		__field(	unsigned int,	pin		)
-	),
-
-	TP_fast_assign(
-		tp_assign(irqchip, irqchip)
-		tp_assign(pin, pin)
-	),
-
-	TP_printk("irqchip %s pin %u",
-		  __print_symbolic(__entry->irqchip, kvm_irqchips),
-		 __entry->pin)
-)
-
-
-
-#endif /* defined(__KVM_HAVE_IOAPIC) */
-
-#define KVM_TRACE_MMIO_READ_UNSATISFIED 0
-#define KVM_TRACE_MMIO_READ 1
-#define KVM_TRACE_MMIO_WRITE 2
-
-#define kvm_trace_symbol_mmio \
-	{ KVM_TRACE_MMIO_READ_UNSATISFIED, "unsatisfied-read" }, \
-	{ KVM_TRACE_MMIO_READ, "read" }, \
-	{ KVM_TRACE_MMIO_WRITE, "write" }
-
-TRACE_EVENT(kvm_mmio,
-	TP_PROTO(int type, int len, u64 gpa, u64 val),
-	TP_ARGS(type, len, gpa, val),
-
-	TP_STRUCT__entry(
-		__field(	u32,	type		)
-		__field(	u32,	len		)
-		__field(	u64,	gpa		)
-		__field(	u64,	val		)
-	),
-
-	TP_fast_assign(
-		tp_assign(type, type)
-		tp_assign(len, len)
-		tp_assign(gpa, gpa)
-		tp_assign(val, val)
-	),
-
-	TP_printk("mmio %s len %u gpa 0x%llx val 0x%llx",
-		  __print_symbolic(__entry->type, kvm_trace_symbol_mmio),
-		  __entry->len, __entry->gpa, __entry->val)
-)
-
-#define kvm_fpu_load_symbol	\
-	{0, "unload"},		\
-	{1, "load"}
-
-TRACE_EVENT(kvm_fpu,
-	TP_PROTO(int load),
-	TP_ARGS(load),
-
-	TP_STRUCT__entry(
-		__field(	u32,	        load		)
-	),
-
-	TP_fast_assign(
-		tp_assign(load, load)
-	),
-
-	TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol))
-)
-
-TRACE_EVENT(kvm_age_page,
-	TP_PROTO(ulong hva, struct kvm_memory_slot *slot, int ref),
-	TP_ARGS(hva, slot, ref),
-
-	TP_STRUCT__entry(
-		__field(	u64,	hva		)
-		__field(	u64,	gfn		)
-		__field(	u8,	referenced	)
-	),
-
-	TP_fast_assign(
-		tp_assign(hva, hva)
-		tp_assign(gfn,
-		  slot->base_gfn + ((hva - slot->userspace_addr) >> PAGE_SHIFT))
-		tp_assign(referenced, ref)
-	),
-
-	TP_printk("hva %llx gfn %llx %s",
-		  __entry->hva, __entry->gfn,
-		  __entry->referenced ? "YOUNG" : "OLD")
-)
-
-#ifdef CONFIG_KVM_ASYNC_PF
-DECLARE_EVENT_CLASS(kvm_async_get_page_class,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn),
-
-	TP_STRUCT__entry(
-		__field(__u64, gva)
-		__field(u64, gfn)
-	),
-
-	TP_fast_assign(
-		tp_assign(gva, gva)
-		tp_assign(gfn, gfn)
-	),
-
-	TP_printk("gva = %#llx, gfn = %#llx", __entry->gva, __entry->gfn)
-)
-
-DEFINE_EVENT(kvm_async_get_page_class, kvm_try_async_get_page,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn)
-)
-
-DEFINE_EVENT(kvm_async_get_page_class, kvm_async_pf_doublefault,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn)
-)
-
-DECLARE_EVENT_CLASS(kvm_async_pf_nopresent_ready,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva),
-
-	TP_STRUCT__entry(
-		__field(__u64, token)
-		__field(__u64, gva)
-	),
-
-	TP_fast_assign(
-		tp_assign(token, token)
-		tp_assign(gva, gva)
-	),
-
-	TP_printk("token %#llx gva %#llx", __entry->token, __entry->gva)
-
-)
-
-DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_not_present,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva)
-)
-
-DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_ready,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva)
-)
-
-TRACE_EVENT(
-	kvm_async_pf_completed,
-	TP_PROTO(unsigned long address, struct page *page, u64 gva),
-	TP_ARGS(address, page, gva),
-
-	TP_STRUCT__entry(
-		__field(unsigned long, address)
-		__field(pfn_t, pfn)
-		__field(u64, gva)
-		),
-
-	TP_fast_assign(
-		tp_assign(address, address)
-		tp_assign(pfn, page ? page_to_pfn(page) : 0)
-		tp_assign(gva, gva)
-		),
-
-	TP_printk("gva %#llx address %#lx pfn %#llx",  __entry->gva,
-		  __entry->address, __entry->pfn)
-)
-
-#endif
-
-#endif /* _TRACE_KVM_MAIN_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"

drivers/staging/lttng/instrumentation/events/lttng-module/lttng.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM lttng
-
-#if !defined(_TRACE_LTTNG_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_LTTNG_H
-
-#include <linux/tracepoint.h>
-
-TRACE_EVENT(lttng_metadata,
-
-	TP_PROTO(const char *str),
-
-	TP_ARGS(str),
-
-	/*
-	 * Not exactly a string: more a sequence of bytes (dynamic
-	 * array) without the length. This is a dummy anyway: we only
-	 * use this declaration to generate an event metadata entry.
-	 */
-	TP_STRUCT__entry(
-		__string(	str,		str	)
-	),
-
-	TP_fast_assign(
-		tp_strcpy(str, str)
-	),
-
-	TP_printk("")
-)
-
-#endif /*  _TRACE_LTTNG_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"

drivers/staging/lttng/instrumentation/events/lttng-module/sched.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM sched
-
-#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_SCHED_H
-
-#include <linux/sched.h>
-#include <linux/tracepoint.h>
-
-#ifndef _TRACE_SCHED_DEF_
-#define _TRACE_SCHED_DEF_
-
-static inline long __trace_sched_switch_state(struct task_struct *p)
-{
-	long state = p->state;
-
-#ifdef CONFIG_PREEMPT
-	/*
-	 * For all intents and purposes a preempted task is a running task.
-	 */
-	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
-		state = TASK_RUNNING;
-#endif
-
-	return state;
-}
-
-#endif /* _TRACE_SCHED_DEF_ */
-
-/*
- * Tracepoint for calling kthread_stop, performed to end a kthread:
- */
-TRACE_EVENT(sched_kthread_stop,
-
-	TP_PROTO(struct task_struct *t),
-
-	TP_ARGS(t),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	tid			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, t->comm, TASK_COMM_LEN)
-		tp_assign(tid, t->pid)
-	),
-
-	TP_printk("comm=%s tid=%d", __entry->comm, __entry->tid)
-)
-
-/*
- * Tracepoint for the return value of the kthread stopping:
- */
-TRACE_EVENT(sched_kthread_stop_ret,
-
-	TP_PROTO(int ret),
-
-	TP_ARGS(ret),
-
-	TP_STRUCT__entry(
-		__field(	int,	ret	)
-	),
-
-	TP_fast_assign(
-		tp_assign(ret, ret)
-	),
-
-	TP_printk("ret=%d", __entry->ret)
-)
-
-/*
- * Tracepoint for waking up a task:
- */
-DECLARE_EVENT_CLASS(sched_wakeup_template,
-
-	TP_PROTO(struct task_struct *p, int success),
-
-	TP_ARGS(p, success),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	tid			)
-		__field(	int,	prio			)
-		__field(	int,	success			)
-		__field(	int,	target_cpu		)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, p->comm, TASK_COMM_LEN)
-		tp_assign(tid, p->pid)
-		tp_assign(prio, p->prio)
-		tp_assign(success, success)
-		tp_assign(target_cpu, task_cpu(p))
-	),
-
-	TP_printk("comm=%s tid=%d prio=%d success=%d target_cpu=%03d",
-		  __entry->comm, __entry->tid, __entry->prio,
-		  __entry->success, __entry->target_cpu)
-)
-
-DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
-	     TP_PROTO(struct task_struct *p, int success),
-	     TP_ARGS(p, success))
-
-/*
- * Tracepoint for waking up a new task:
- */
-DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
-	     TP_PROTO(struct task_struct *p, int success),
-	     TP_ARGS(p, success))
-
-/*
- * Tracepoint for task switches, performed by the scheduler:
- */
-TRACE_EVENT(sched_switch,
-
-	TP_PROTO(struct task_struct *prev,
-		 struct task_struct *next),
-
-	TP_ARGS(prev, next),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	prev_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	prev_tid			)
-		__field(	int,	prev_prio			)
-		__field(	long,	prev_state			)
-		__array_text(	char,	next_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	next_tid			)
-		__field(	int,	next_prio			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(next_comm, next->comm, TASK_COMM_LEN)
-		tp_assign(prev_tid, prev->pid)
-		tp_assign(prev_prio, prev->prio - MAX_RT_PRIO)
-		tp_assign(prev_state, __trace_sched_switch_state(prev))
-		tp_memcpy(prev_comm, prev->comm, TASK_COMM_LEN)
-		tp_assign(next_tid, next->pid)
-		tp_assign(next_prio, next->prio - MAX_RT_PRIO)
-	),
-
-	TP_printk("prev_comm=%s prev_tid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_tid=%d next_prio=%d",
-		__entry->prev_comm, __entry->prev_tid, __entry->prev_prio,
-		__entry->prev_state ?
-		  __print_flags(__entry->prev_state, "|",
-				{ 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
-				{ 16, "Z" }, { 32, "X" }, { 64, "x" },
-				{ 128, "W" }) : "R",
-		__entry->next_comm, __entry->next_tid, __entry->next_prio)
-)
-
-/*
- * Tracepoint for a task being migrated:
- */
-TRACE_EVENT(sched_migrate_task,
-
-	TP_PROTO(struct task_struct *p, int dest_cpu),
-
-	TP_ARGS(p, dest_cpu),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	tid			)
-		__field(	int,	prio			)
-		__field(	int,	orig_cpu		)
-		__field(	int,	dest_cpu		)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, p->comm, TASK_COMM_LEN)
-		tp_assign(tid, p->pid)
-		tp_assign(prio, p->prio - MAX_RT_PRIO)
-		tp_assign(orig_cpu, task_cpu(p))
-		tp_assign(dest_cpu, dest_cpu)
-	),
-
-	TP_printk("comm=%s tid=%d prio=%d orig_cpu=%d dest_cpu=%d",
-		  __entry->comm, __entry->tid, __entry->prio,
-		  __entry->orig_cpu, __entry->dest_cpu)
-)
-
-DECLARE_EVENT_CLASS(sched_process_template,
-
-	TP_PROTO(struct task_struct *p),
-
-	TP_ARGS(p),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	tid			)
-		__field(	int,	prio			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, p->comm, TASK_COMM_LEN)
-		tp_assign(tid, p->pid)
-		tp_assign(prio, p->prio - MAX_RT_PRIO)
-	),
-
-	TP_printk("comm=%s tid=%d prio=%d",
-		  __entry->comm, __entry->tid, __entry->prio)
-)
-
-/*
- * Tracepoint for freeing a task:
- */
-DEFINE_EVENT(sched_process_template, sched_process_free,
-	     TP_PROTO(struct task_struct *p),
-	     TP_ARGS(p))
-	     
-
-/*
- * Tracepoint for a task exiting:
- */
-DEFINE_EVENT(sched_process_template, sched_process_exit,
-	     TP_PROTO(struct task_struct *p),
-	     TP_ARGS(p))
-
-/*
- * Tracepoint for waiting on task to unschedule:
- */
-DEFINE_EVENT(sched_process_template, sched_wait_task,
-	TP_PROTO(struct task_struct *p),
-	TP_ARGS(p))
-
-/*
- * Tracepoint for a waiting task:
- */
-TRACE_EVENT(sched_process_wait,
-
-	TP_PROTO(struct pid *pid),
-
-	TP_ARGS(pid),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	tid			)
-		__field(	int,	prio			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, current->comm, TASK_COMM_LEN)
-		tp_assign(tid, pid_nr(pid))
-		tp_assign(prio, current->prio - MAX_RT_PRIO)
-	),
-
-	TP_printk("comm=%s tid=%d prio=%d",
-		  __entry->comm, __entry->tid, __entry->prio)
-)
-
-/*
- * Tracepoint for do_fork:
- */
-TRACE_EVENT(sched_process_fork,
-
-	TP_PROTO(struct task_struct *parent, struct task_struct *child),
-
-	TP_ARGS(parent, child),
-
-	TP_STRUCT__entry(
-		__array_text(	char,	parent_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	parent_tid			)
-		__array_text(	char,	child_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	child_tid			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(parent_comm, parent->comm, TASK_COMM_LEN)
-		tp_assign(parent_tid, parent->pid)
-		tp_memcpy(child_comm, child->comm, TASK_COMM_LEN)
-		tp_assign(child_tid, child->pid)
-	),
-
-	TP_printk("comm=%s tid=%d child_comm=%s child_tid=%d",
-		__entry->parent_comm, __entry->parent_tid,
-		__entry->child_comm, __entry->child_tid)
-)
-
-/*
- * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
- *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
- */
-DECLARE_EVENT_CLASS(sched_stat_template,
-
-	TP_PROTO(struct task_struct *tsk, u64 delay),
-
-	TP_ARGS(tsk, delay),
-
-	TP_STRUCT__entry(
-		__array_text( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	tid			)
-		__field( u64,	delay			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
-		tp_assign(tid,  tsk->pid)
-		tp_assign(delay, delay)
-	)
-	TP_perf_assign(
-		__perf_count(delay)
-	),
-
-	TP_printk("comm=%s tid=%d delay=%Lu [ns]",
-			__entry->comm, __entry->tid,
-			(unsigned long long)__entry->delay)
-)
-
-
-/*
- * Tracepoint for accounting wait time (time the task is runnable
- * but not actually running due to scheduler contention).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_wait,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay))
-
-/*
- * Tracepoint for accounting sleep time (time the task is not runnable,
- * including iowait, see below).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_sleep,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay))
-
-/*
- * Tracepoint for accounting iowait time (time the task is not runnable
- * due to waiting on IO to complete).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_iowait,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay))
-
-/*
- * Tracepoint for accounting runtime (time the task is executing
- * on a CPU).
- */
-TRACE_EVENT(sched_stat_runtime,
-
-	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
-
-	TP_ARGS(tsk, runtime, vruntime),
-
-	TP_STRUCT__entry(
-		__array_text( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	tid			)
-		__field( u64,	runtime			)
-		__field( u64,	vruntime			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
-		tp_assign(tid, tsk->pid)
-		tp_assign(runtime, runtime)
-		tp_assign(vruntime, vruntime)
-	)
-	TP_perf_assign(
-		__perf_count(runtime)
-	),
-
-	TP_printk("comm=%s tid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
-			__entry->comm, __entry->tid,
-			(unsigned long long)__entry->runtime,
-			(unsigned long long)__entry->vruntime)
-)
-
-/*
- * Tracepoint for showing priority inheritance modifying a tasks
- * priority.
- */
-TRACE_EVENT(sched_pi_setprio,
-
-	TP_PROTO(struct task_struct *tsk, int newprio),
-
-	TP_ARGS(tsk, newprio),
-
-	TP_STRUCT__entry(
-		__array_text( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	tid			)
-		__field( int,	oldprio			)
-		__field( int,	newprio			)
-	),
-
-	TP_fast_assign(
-		tp_memcpy(comm, tsk->comm, TASK_COMM_LEN)
-		tp_assign(tid, tsk->pid)
-		tp_assign(oldprio, tsk->prio - MAX_RT_PRIO)
-		tp_assign(newprio, newprio - MAX_RT_PRIO)
-	),
-
-	TP_printk("comm=%s tid=%d oldprio=%d newprio=%d",
-			__entry->comm, __entry->tid,
-			__entry->oldprio, __entry->newprio)
-)
-
-#endif /* _TRACE_SCHED_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"

drivers/staging/lttng/instrumentation/events/lttng-module/syscalls.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM raw_syscalls
-#define TRACE_INCLUDE_FILE syscalls
-
-#if !defined(_TRACE_EVENTS_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_EVENTS_SYSCALLS_H
-
-#include <linux/tracepoint.h>
-
-#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
-
-#ifndef _TRACE_SYSCALLS_DEF_
-#define _TRACE_SYSCALLS_DEF_
-
-#include <asm/ptrace.h>
-#include <asm/syscall.h>
-
-#endif /* _TRACE_SYSCALLS_DEF_ */
-
-TRACE_EVENT(sys_enter,
-
-	TP_PROTO(struct pt_regs *regs, long id),
-
-	TP_ARGS(regs, id),
-
-	TP_STRUCT__entry(
-		__field(	long,		id		)
-		__array(	unsigned long,	args,	6	)
-	),
-
-	TP_fast_assign(
-		tp_assign(id, id)
-		{
-			tp_memcpy(args,
-				({
-					unsigned long args_copy[6];
-					syscall_get_arguments(current, regs,
-							0, 6, args_copy);
-					args_copy;
-				}), 6 * sizeof(unsigned long));
-		}
-	),
-
-	TP_printk("NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)",
-		  __entry->id,
-		  __entry->args[0], __entry->args[1], __entry->args[2],
-		  __entry->args[3], __entry->args[4], __entry->args[5])
-)
-
-TRACE_EVENT(sys_exit,
-
-	TP_PROTO(struct pt_regs *regs, long ret),
-
-	TP_ARGS(regs, ret),
-
-	TP_STRUCT__entry(
-		__field(	long,	id	)
-		__field(	long,	ret	)
-	),
-
-	TP_fast_assign(
-		tp_assign(id, syscall_get_nr(current, regs))
-		tp_assign(ret, ret)
-	),
-
-	TP_printk("NR %ld = %ld",
-		  __entry->id, __entry->ret)
-)
-
-#endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */
-
-#endif /* _TRACE_EVENTS_SYSCALLS_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"
-

drivers/staging/lttng/instrumentation/events/mainline/irq.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM irq
-
-#if !defined(_TRACE_IRQ_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_IRQ_H
-
-#include <linux/tracepoint.h>
-
-struct irqaction;
-struct softirq_action;
-
-#define softirq_name(sirq) { sirq##_SOFTIRQ, #sirq }
-#define show_softirq_name(val)				\
-	__print_symbolic(val,				\
-			 softirq_name(HI),		\
-			 softirq_name(TIMER),		\
-			 softirq_name(NET_TX),		\
-			 softirq_name(NET_RX),		\
-			 softirq_name(BLOCK),		\
-			 softirq_name(BLOCK_IOPOLL),	\
-			 softirq_name(TASKLET),		\
-			 softirq_name(SCHED),		\
-			 softirq_name(HRTIMER),		\
-			 softirq_name(RCU))
-
-/**
- * irq_handler_entry - called immediately before the irq action handler
- * @irq: irq number
- * @action: pointer to struct irqaction
- *
- * The struct irqaction pointed to by @action contains various
- * information about the handler, including the device name,
- * @action->name, and the device id, @action->dev_id. When used in
- * conjunction with the irq_handler_exit tracepoint, we can figure
- * out irq handler latencies.
- */
-TRACE_EVENT(irq_handler_entry,
-
-	TP_PROTO(int irq, struct irqaction *action),
-
-	TP_ARGS(irq, action),
-
-	TP_STRUCT__entry(
-		__field(	int,	irq		)
-		__string(	name,	action->name	)
-	),
-
-	TP_fast_assign(
-		__entry->irq = irq;
-		__assign_str(name, action->name);
-	),
-
-	TP_printk("irq=%d name=%s", __entry->irq, __get_str(name))
-);
-
-/**
- * irq_handler_exit - called immediately after the irq action handler returns
- * @irq: irq number
- * @action: pointer to struct irqaction
- * @ret: return value
- *
- * If the @ret value is set to IRQ_HANDLED, then we know that the corresponding
- * @action->handler scuccessully handled this irq. Otherwise, the irq might be
- * a shared irq line, or the irq was not handled successfully. Can be used in
- * conjunction with the irq_handler_entry to understand irq handler latencies.
- */
-TRACE_EVENT(irq_handler_exit,
-
-	TP_PROTO(int irq, struct irqaction *action, int ret),
-
-	TP_ARGS(irq, action, ret),
-
-	TP_STRUCT__entry(
-		__field(	int,	irq	)
-		__field(	int,	ret	)
-	),
-
-	TP_fast_assign(
-		__entry->irq	= irq;
-		__entry->ret	= ret;
-	),
-
-	TP_printk("irq=%d ret=%s",
-		  __entry->irq, __entry->ret ? "handled" : "unhandled")
-);
-
-DECLARE_EVENT_CLASS(softirq,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	vec	)
-	),
-
-	TP_fast_assign(
-		__entry->vec = vec_nr;
-	),
-
-	TP_printk("vec=%u [action=%s]", __entry->vec,
-		  show_softirq_name(__entry->vec))
-);
-
-/**
- * softirq_entry - called immediately before the softirq handler
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_exit tracepoint
- * we can determine the softirq handler runtine.
- */
-DEFINE_EVENT(softirq, softirq_entry,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-);
-
-/**
- * softirq_exit - called immediately after the softirq handler returns
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_entry tracepoint
- * we can determine the softirq handler runtine.
- */
-DEFINE_EVENT(softirq, softirq_exit,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-);
-
-/**
- * softirq_raise - called immediately when a softirq is raised
- * @vec_nr:  softirq vector number
- *
- * When used in combination with the softirq_entry tracepoint
- * we can determine the softirq raise to run latency.
- */
-DEFINE_EVENT(softirq, softirq_raise,
-
-	TP_PROTO(unsigned int vec_nr),
-
-	TP_ARGS(vec_nr)
-);
-
-#endif /*  _TRACE_IRQ_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>

drivers/staging/lttng/instrumentation/events/mainline/kvm.h

-#if !defined(_TRACE_KVM_MAIN_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_KVM_MAIN_H
-
-#include <linux/tracepoint.h>
-
-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM kvm
-
-#define ERSN(x) { KVM_EXIT_##x, "KVM_EXIT_" #x }
-
-#define kvm_trace_exit_reason						\
-	ERSN(UNKNOWN), ERSN(EXCEPTION), ERSN(IO), ERSN(HYPERCALL),	\
-	ERSN(DEBUG), ERSN(HLT), ERSN(MMIO), ERSN(IRQ_WINDOW_OPEN),	\
-	ERSN(SHUTDOWN), ERSN(FAIL_ENTRY), ERSN(INTR), ERSN(SET_TPR),	\
-	ERSN(TPR_ACCESS), ERSN(S390_SIEIC), ERSN(S390_RESET), ERSN(DCR),\
-	ERSN(NMI), ERSN(INTERNAL_ERROR), ERSN(OSI)
-
-TRACE_EVENT(kvm_userspace_exit,
-	    TP_PROTO(__u32 reason, int errno),
-	    TP_ARGS(reason, errno),
-
-	TP_STRUCT__entry(
-		__field(	__u32,		reason		)
-		__field(	int,		errno		)
-	),
-
-	TP_fast_assign(
-		__entry->reason		= reason;
-		__entry->errno		= errno;
-	),
-
-	TP_printk("reason %s (%d)",
-		  __entry->errno < 0 ?
-		  (__entry->errno == -EINTR ? "restart" : "error") :
-		  __print_symbolic(__entry->reason, kvm_trace_exit_reason),
-		  __entry->errno < 0 ? -__entry->errno : __entry->reason)
-);
-
-#if defined(__KVM_HAVE_IOAPIC)
-TRACE_EVENT(kvm_set_irq,
-	TP_PROTO(unsigned int gsi, int level, int irq_source_id),
-	TP_ARGS(gsi, level, irq_source_id),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	gsi		)
-		__field(	int,		level		)
-		__field(	int,		irq_source_id	)
-	),
-
-	TP_fast_assign(
-		__entry->gsi		= gsi;
-		__entry->level		= level;
-		__entry->irq_source_id	= irq_source_id;
-	),
-
-	TP_printk("gsi %u level %d source %d",
-		  __entry->gsi, __entry->level, __entry->irq_source_id)
-);
-
-#define kvm_deliver_mode		\
-	{0x0, "Fixed"},			\
-	{0x1, "LowPrio"},		\
-	{0x2, "SMI"},			\
-	{0x3, "Res3"},			\
-	{0x4, "NMI"},			\
-	{0x5, "INIT"},			\
-	{0x6, "SIPI"},			\
-	{0x7, "ExtINT"}
-
-TRACE_EVENT(kvm_ioapic_set_irq,
-	    TP_PROTO(__u64 e, int pin, bool coalesced),
-	    TP_ARGS(e, pin, coalesced),
-
-	TP_STRUCT__entry(
-		__field(	__u64,		e		)
-		__field(	int,		pin		)
-		__field(	bool,		coalesced	)
-	),
-
-	TP_fast_assign(
-		__entry->e		= e;
-		__entry->pin		= pin;
-		__entry->coalesced	= coalesced;
-	),
-
-	TP_printk("pin %u dst %x vec=%u (%s|%s|%s%s)%s",
-		  __entry->pin, (u8)(__entry->e >> 56), (u8)__entry->e,
-		  __print_symbolic((__entry->e >> 8 & 0x7), kvm_deliver_mode),
-		  (__entry->e & (1<<11)) ? "logical" : "physical",
-		  (__entry->e & (1<<15)) ? "level" : "edge",
-		  (__entry->e & (1<<16)) ? "|masked" : "",
-		  __entry->coalesced ? " (coalesced)" : "")
-);
-
-TRACE_EVENT(kvm_msi_set_irq,
-	    TP_PROTO(__u64 address, __u64 data),
-	    TP_ARGS(address, data),
-
-	TP_STRUCT__entry(
-		__field(	__u64,		address		)
-		__field(	__u64,		data		)
-	),
-
-	TP_fast_assign(
-		__entry->address	= address;
-		__entry->data		= data;
-	),
-
-	TP_printk("dst %u vec %x (%s|%s|%s%s)",
-		  (u8)(__entry->address >> 12), (u8)__entry->data,
-		  __print_symbolic((__entry->data >> 8 & 0x7), kvm_deliver_mode),
-		  (__entry->address & (1<<2)) ? "logical" : "physical",
-		  (__entry->data & (1<<15)) ? "level" : "edge",
-		  (__entry->address & (1<<3)) ? "|rh" : "")
-);
-
-#define kvm_irqchips						\
-	{KVM_IRQCHIP_PIC_MASTER,	"PIC master"},		\
-	{KVM_IRQCHIP_PIC_SLAVE,		"PIC slave"},		\
-	{KVM_IRQCHIP_IOAPIC,		"IOAPIC"}
-
-TRACE_EVENT(kvm_ack_irq,
-	TP_PROTO(unsigned int irqchip, unsigned int pin),
-	TP_ARGS(irqchip, pin),
-
-	TP_STRUCT__entry(
-		__field(	unsigned int,	irqchip		)
-		__field(	unsigned int,	pin		)
-	),
-
-	TP_fast_assign(
-		__entry->irqchip	= irqchip;
-		__entry->pin		= pin;
-	),
-
-	TP_printk("irqchip %s pin %u",
-		  __print_symbolic(__entry->irqchip, kvm_irqchips),
-		 __entry->pin)
-);
-
-
-
-#endif /* defined(__KVM_HAVE_IOAPIC) */
-
-#define KVM_TRACE_MMIO_READ_UNSATISFIED 0
-#define KVM_TRACE_MMIO_READ 1
-#define KVM_TRACE_MMIO_WRITE 2
-
-#define kvm_trace_symbol_mmio \
-	{ KVM_TRACE_MMIO_READ_UNSATISFIED, "unsatisfied-read" }, \
-	{ KVM_TRACE_MMIO_READ, "read" }, \
-	{ KVM_TRACE_MMIO_WRITE, "write" }
-
-TRACE_EVENT(kvm_mmio,
-	TP_PROTO(int type, int len, u64 gpa, u64 val),
-	TP_ARGS(type, len, gpa, val),
-
-	TP_STRUCT__entry(
-		__field(	u32,	type		)
-		__field(	u32,	len		)
-		__field(	u64,	gpa		)
-		__field(	u64,	val		)
-	),
-
-	TP_fast_assign(
-		__entry->type		= type;
-		__entry->len		= len;
-		__entry->gpa		= gpa;
-		__entry->val		= val;
-	),
-
-	TP_printk("mmio %s len %u gpa 0x%llx val 0x%llx",
-		  __print_symbolic(__entry->type, kvm_trace_symbol_mmio),
-		  __entry->len, __entry->gpa, __entry->val)
-);
-
-#define kvm_fpu_load_symbol	\
-	{0, "unload"},		\
-	{1, "load"}
-
-TRACE_EVENT(kvm_fpu,
-	TP_PROTO(int load),
-	TP_ARGS(load),
-
-	TP_STRUCT__entry(
-		__field(	u32,	        load		)
-	),
-
-	TP_fast_assign(
-		__entry->load		= load;
-	),
-
-	TP_printk("%s", __print_symbolic(__entry->load, kvm_fpu_load_symbol))
-);
-
-TRACE_EVENT(kvm_age_page,
-	TP_PROTO(ulong hva, struct kvm_memory_slot *slot, int ref),
-	TP_ARGS(hva, slot, ref),
-
-	TP_STRUCT__entry(
-		__field(	u64,	hva		)
-		__field(	u64,	gfn		)
-		__field(	u8,	referenced	)
-	),
-
-	TP_fast_assign(
-		__entry->hva		= hva;
-		__entry->gfn		=
-		  slot->base_gfn + ((hva - slot->userspace_addr) >> PAGE_SHIFT);
-		__entry->referenced	= ref;
-	),
-
-	TP_printk("hva %llx gfn %llx %s",
-		  __entry->hva, __entry->gfn,
-		  __entry->referenced ? "YOUNG" : "OLD")
-);
-
-#ifdef CONFIG_KVM_ASYNC_PF
-DECLARE_EVENT_CLASS(kvm_async_get_page_class,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn),
-
-	TP_STRUCT__entry(
-		__field(__u64, gva)
-		__field(u64, gfn)
-	),
-
-	TP_fast_assign(
-		__entry->gva = gva;
-		__entry->gfn = gfn;
-	),
-
-	TP_printk("gva = %#llx, gfn = %#llx", __entry->gva, __entry->gfn)
-);
-
-DEFINE_EVENT(kvm_async_get_page_class, kvm_try_async_get_page,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn)
-);
-
-DEFINE_EVENT(kvm_async_get_page_class, kvm_async_pf_doublefault,
-
-	TP_PROTO(u64 gva, u64 gfn),
-
-	TP_ARGS(gva, gfn)
-);
-
-DECLARE_EVENT_CLASS(kvm_async_pf_nopresent_ready,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva),
-
-	TP_STRUCT__entry(
-		__field(__u64, token)
-		__field(__u64, gva)
-	),
-
-	TP_fast_assign(
-		__entry->token = token;
-		__entry->gva = gva;
-	),
-
-	TP_printk("token %#llx gva %#llx", __entry->token, __entry->gva)
-
-);
-
-DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_not_present,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva)
-);
-
-DEFINE_EVENT(kvm_async_pf_nopresent_ready, kvm_async_pf_ready,
-
-	TP_PROTO(u64 token, u64 gva),
-
-	TP_ARGS(token, gva)
-);
-
-TRACE_EVENT(
-	kvm_async_pf_completed,
-	TP_PROTO(unsigned long address, struct page *page, u64 gva),
-	TP_ARGS(address, page, gva),
-
-	TP_STRUCT__entry(
-		__field(unsigned long, address)
-		__field(pfn_t, pfn)
-		__field(u64, gva)
-		),
-
-	TP_fast_assign(
-		__entry->address = address;
-		__entry->pfn = page ? page_to_pfn(page) : 0;
-		__entry->gva = gva;
-		),
-
-	TP_printk("gva %#llx address %#lx pfn %#llx",  __entry->gva,
-		  __entry->address, __entry->pfn)
-);
-
-#endif
-
-#endif /* _TRACE_KVM_MAIN_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>

drivers/staging/lttng/instrumentation/events/mainline/sched.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM sched
-
-#if !defined(_TRACE_SCHED_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_SCHED_H
-
-#include <linux/sched.h>
-#include <linux/tracepoint.h>
-
-/*
- * Tracepoint for calling kthread_stop, performed to end a kthread:
- */
-TRACE_EVENT(sched_kthread_stop,
-
-	TP_PROTO(struct task_struct *t),
-
-	TP_ARGS(t),
-
-	TP_STRUCT__entry(
-		__array(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	pid			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, t->comm, TASK_COMM_LEN);
-		__entry->pid	= t->pid;
-	),
-
-	TP_printk("comm=%s pid=%d", __entry->comm, __entry->pid)
-);
-
-/*
- * Tracepoint for the return value of the kthread stopping:
- */
-TRACE_EVENT(sched_kthread_stop_ret,
-
-	TP_PROTO(int ret),
-
-	TP_ARGS(ret),
-
-	TP_STRUCT__entry(
-		__field(	int,	ret	)
-	),
-
-	TP_fast_assign(
-		__entry->ret	= ret;
-	),
-
-	TP_printk("ret=%d", __entry->ret)
-);
-
-/*
- * Tracepoint for waking up a task:
- */
-DECLARE_EVENT_CLASS(sched_wakeup_template,
-
-	TP_PROTO(struct task_struct *p, int success),
-
-	TP_ARGS(p, success),
-
-	TP_STRUCT__entry(
-		__array(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	pid			)
-		__field(	int,	prio			)
-		__field(	int,	success			)
-		__field(	int,	target_cpu		)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
-		__entry->pid		= p->pid;
-		__entry->prio		= p->prio;
-		__entry->success	= success;
-		__entry->target_cpu	= task_cpu(p);
-	),
-
-	TP_printk("comm=%s pid=%d prio=%d success=%d target_cpu=%03d",
-		  __entry->comm, __entry->pid, __entry->prio,
-		  __entry->success, __entry->target_cpu)
-);
-
-DEFINE_EVENT(sched_wakeup_template, sched_wakeup,
-	     TP_PROTO(struct task_struct *p, int success),
-	     TP_ARGS(p, success));
-
-/*
- * Tracepoint for waking up a new task:
- */
-DEFINE_EVENT(sched_wakeup_template, sched_wakeup_new,
-	     TP_PROTO(struct task_struct *p, int success),
-	     TP_ARGS(p, success));
-
-#ifdef CREATE_TRACE_POINTS
-static inline long __trace_sched_switch_state(struct task_struct *p)
-{
-	long state = p->state;
-
-#ifdef CONFIG_PREEMPT
-	/*
-	 * For all intents and purposes a preempted task is a running task.
-	 */
-	if (task_thread_info(p)->preempt_count & PREEMPT_ACTIVE)
-		state = TASK_RUNNING;
-#endif
-
-	return state;
-}
-#endif
-
-/*
- * Tracepoint for task switches, performed by the scheduler:
- */
-TRACE_EVENT(sched_switch,
-
-	TP_PROTO(struct task_struct *prev,
-		 struct task_struct *next),
-
-	TP_ARGS(prev, next),
-
-	TP_STRUCT__entry(
-		__array(	char,	prev_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	prev_pid			)
-		__field(	int,	prev_prio			)
-		__field(	long,	prev_state			)
-		__array(	char,	next_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	next_pid			)
-		__field(	int,	next_prio			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->next_comm, next->comm, TASK_COMM_LEN);
-		__entry->prev_pid	= prev->pid;
-		__entry->prev_prio	= prev->prio;
-		__entry->prev_state	= __trace_sched_switch_state(prev);
-		memcpy(__entry->prev_comm, prev->comm, TASK_COMM_LEN);
-		__entry->next_pid	= next->pid;
-		__entry->next_prio	= next->prio;
-	),
-
-	TP_printk("prev_comm=%s prev_pid=%d prev_prio=%d prev_state=%s ==> next_comm=%s next_pid=%d next_prio=%d",
-		__entry->prev_comm, __entry->prev_pid, __entry->prev_prio,
-		__entry->prev_state ?
-		  __print_flags(__entry->prev_state, "|",
-				{ 1, "S"} , { 2, "D" }, { 4, "T" }, { 8, "t" },
-				{ 16, "Z" }, { 32, "X" }, { 64, "x" },
-				{ 128, "W" }) : "R",
-		__entry->next_comm, __entry->next_pid, __entry->next_prio)
-);
-
-/*
- * Tracepoint for a task being migrated:
- */
-TRACE_EVENT(sched_migrate_task,
-
-	TP_PROTO(struct task_struct *p, int dest_cpu),
-
-	TP_ARGS(p, dest_cpu),
-
-	TP_STRUCT__entry(
-		__array(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	pid			)
-		__field(	int,	prio			)
-		__field(	int,	orig_cpu		)
-		__field(	int,	dest_cpu		)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
-		__entry->pid		= p->pid;
-		__entry->prio		= p->prio;
-		__entry->orig_cpu	= task_cpu(p);
-		__entry->dest_cpu	= dest_cpu;
-	),
-
-	TP_printk("comm=%s pid=%d prio=%d orig_cpu=%d dest_cpu=%d",
-		  __entry->comm, __entry->pid, __entry->prio,
-		  __entry->orig_cpu, __entry->dest_cpu)
-);
-
-DECLARE_EVENT_CLASS(sched_process_template,
-
-	TP_PROTO(struct task_struct *p),
-
-	TP_ARGS(p),
-
-	TP_STRUCT__entry(
-		__array(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	pid			)
-		__field(	int,	prio			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, p->comm, TASK_COMM_LEN);
-		__entry->pid		= p->pid;
-		__entry->prio		= p->prio;
-	),
-
-	TP_printk("comm=%s pid=%d prio=%d",
-		  __entry->comm, __entry->pid, __entry->prio)
-);
-
-/*
- * Tracepoint for freeing a task:
- */
-DEFINE_EVENT(sched_process_template, sched_process_free,
-	     TP_PROTO(struct task_struct *p),
-	     TP_ARGS(p));
-	     
-
-/*
- * Tracepoint for a task exiting:
- */
-DEFINE_EVENT(sched_process_template, sched_process_exit,
-	     TP_PROTO(struct task_struct *p),
-	     TP_ARGS(p));
-
-/*
- * Tracepoint for waiting on task to unschedule:
- */
-DEFINE_EVENT(sched_process_template, sched_wait_task,
-	TP_PROTO(struct task_struct *p),
-	TP_ARGS(p));
-
-/*
- * Tracepoint for a waiting task:
- */
-TRACE_EVENT(sched_process_wait,
-
-	TP_PROTO(struct pid *pid),
-
-	TP_ARGS(pid),
-
-	TP_STRUCT__entry(
-		__array(	char,	comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	pid			)
-		__field(	int,	prio			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, current->comm, TASK_COMM_LEN);
-		__entry->pid		= pid_nr(pid);
-		__entry->prio		= current->prio;
-	),
-
-	TP_printk("comm=%s pid=%d prio=%d",
-		  __entry->comm, __entry->pid, __entry->prio)
-);
-
-/*
- * Tracepoint for do_fork:
- */
-TRACE_EVENT(sched_process_fork,
-
-	TP_PROTO(struct task_struct *parent, struct task_struct *child),
-
-	TP_ARGS(parent, child),
-
-	TP_STRUCT__entry(
-		__array(	char,	parent_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	parent_pid			)
-		__array(	char,	child_comm,	TASK_COMM_LEN	)
-		__field(	pid_t,	child_pid			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->parent_comm, parent->comm, TASK_COMM_LEN);
-		__entry->parent_pid	= parent->pid;
-		memcpy(__entry->child_comm, child->comm, TASK_COMM_LEN);
-		__entry->child_pid	= child->pid;
-	),
-
-	TP_printk("comm=%s pid=%d child_comm=%s child_pid=%d",
-		__entry->parent_comm, __entry->parent_pid,
-		__entry->child_comm, __entry->child_pid)
-);
-
-/*
- * XXX the below sched_stat tracepoints only apply to SCHED_OTHER/BATCH/IDLE
- *     adding sched_stat support to SCHED_FIFO/RR would be welcome.
- */
-DECLARE_EVENT_CLASS(sched_stat_template,
-
-	TP_PROTO(struct task_struct *tsk, u64 delay),
-
-	TP_ARGS(tsk, delay),
-
-	TP_STRUCT__entry(
-		__array( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	pid			)
-		__field( u64,	delay			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
-		__entry->pid	= tsk->pid;
-		__entry->delay	= delay;
-	)
-	TP_perf_assign(
-		__perf_count(delay);
-	),
-
-	TP_printk("comm=%s pid=%d delay=%Lu [ns]",
-			__entry->comm, __entry->pid,
-			(unsigned long long)__entry->delay)
-);
-
-
-/*
- * Tracepoint for accounting wait time (time the task is runnable
- * but not actually running due to scheduler contention).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_wait,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay));
-
-/*
- * Tracepoint for accounting sleep time (time the task is not runnable,
- * including iowait, see below).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_sleep,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay));
-
-/*
- * Tracepoint for accounting iowait time (time the task is not runnable
- * due to waiting on IO to complete).
- */
-DEFINE_EVENT(sched_stat_template, sched_stat_iowait,
-	     TP_PROTO(struct task_struct *tsk, u64 delay),
-	     TP_ARGS(tsk, delay));
-
-/*
- * Tracepoint for accounting runtime (time the task is executing
- * on a CPU).
- */
-TRACE_EVENT(sched_stat_runtime,
-
-	TP_PROTO(struct task_struct *tsk, u64 runtime, u64 vruntime),
-
-	TP_ARGS(tsk, runtime, vruntime),
-
-	TP_STRUCT__entry(
-		__array( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	pid			)
-		__field( u64,	runtime			)
-		__field( u64,	vruntime			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
-		__entry->pid		= tsk->pid;
-		__entry->runtime	= runtime;
-		__entry->vruntime	= vruntime;
-	)
-	TP_perf_assign(
-		__perf_count(runtime);
-	),
-
-	TP_printk("comm=%s pid=%d runtime=%Lu [ns] vruntime=%Lu [ns]",
-			__entry->comm, __entry->pid,
-			(unsigned long long)__entry->runtime,
-			(unsigned long long)__entry->vruntime)
-);
-
-/*
- * Tracepoint for showing priority inheritance modifying a tasks
- * priority.
- */
-TRACE_EVENT(sched_pi_setprio,
-
-	TP_PROTO(struct task_struct *tsk, int newprio),
-
-	TP_ARGS(tsk, newprio),
-
-	TP_STRUCT__entry(
-		__array( char,	comm,	TASK_COMM_LEN	)
-		__field( pid_t,	pid			)
-		__field( int,	oldprio			)
-		__field( int,	newprio			)
-	),
-
-	TP_fast_assign(
-		memcpy(__entry->comm, tsk->comm, TASK_COMM_LEN);
-		__entry->pid		= tsk->pid;
-		__entry->oldprio	= tsk->prio;
-		__entry->newprio	= newprio;
-	),
-
-	TP_printk("comm=%s pid=%d oldprio=%d newprio=%d",
-			__entry->comm, __entry->pid,
-			__entry->oldprio, __entry->newprio)
-);
-
-#endif /* _TRACE_SCHED_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>

drivers/staging/lttng/instrumentation/events/mainline/syscalls.h

-#undef TRACE_SYSTEM
-#define TRACE_SYSTEM raw_syscalls
-#define TRACE_INCLUDE_FILE syscalls
-
-#if !defined(_TRACE_EVENTS_SYSCALLS_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_EVENTS_SYSCALLS_H
-
-#include <linux/tracepoint.h>
-
-#include <asm/ptrace.h>
-#include <asm/syscall.h>
-
-
-#ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS
-
-extern void syscall_regfunc(void);
-extern void syscall_unregfunc(void);
-
-TRACE_EVENT_FN(sys_enter,
-
-	TP_PROTO(struct pt_regs *regs, long id),
-
-	TP_ARGS(regs, id),
-
-	TP_STRUCT__entry(
-		__field(	long,		id		)
-		__array(	unsigned long,	args,	6	)
-	),
-
-	TP_fast_assign(
-		__entry->id	= id;
-		syscall_get_arguments(current, regs, 0, 6, __entry->args);
-	),
-
-	TP_printk("NR %ld (%lx, %lx, %lx, %lx, %lx, %lx)",
-		  __entry->id,
-		  __entry->args[0], __entry->args[1], __entry->args[2],
-		  __entry->args[3], __entry->args[4], __entry->args[5]),
-
-	syscall_regfunc, syscall_unregfunc
-);
-
-TRACE_EVENT_FLAGS(sys_enter, TRACE_EVENT_FL_CAP_ANY)
-
-TRACE_EVENT_FN(sys_exit,
-
-	TP_PROTO(struct pt_regs *regs, long ret),
-
-	TP_ARGS(regs, ret),
-
-	TP_STRUCT__entry(
-		__field(	long,	id	)
-		__field(	long,	ret	)
-	),
-
-	TP_fast_assign(
-		__entry->id	= syscall_get_nr(current, regs);
-		__entry->ret	= ret;
-	),
-
-	TP_printk("NR %ld = %ld",
-		  __entry->id, __entry->ret),
-
-	syscall_regfunc, syscall_unregfunc
-);
-
-TRACE_EVENT_FLAGS(sys_exit, TRACE_EVENT_FL_CAP_ANY)
-
-#endif /* CONFIG_HAVE_SYSCALL_TRACEPOINTS */
-
-#endif /* _TRACE_EVENTS_SYSCALLS_H */
-
-/* This part must be outside protection */
-#include <trace/define_trace.h>
-

drivers/staging/lttng/instrumentation/syscalls/README

-LTTng system call tracing
-
-1) lttng-syscall-extractor
-
-You need to build a kernel with CONFIG_FTRACE_SYSCALLS=y and
-CONFIG_KALLSYMS_ALL=y for extraction. Apply the linker patch to get your
-kernel to keep the system call metadata after boot.  Then build and load
-the LTTng syscall extractor module. The module will fail to load (this
-is expected). See the dmesg output for system call metadata.
-
-2) Generate system call TRACE_EVENT().
-
-Take the dmesg metadata and feed it to lttng-syscalls-generate-headers.sh, e.g.,
-from the instrumentation/syscalls directory. See the script header for
-usage example.
-
-After these are created, we just need to follow the new system call additions,
-no need to regenerate the whole thing, since system calls are only appended to.

drivers/staging/lttng/instrumentation/syscalls/headers/compat_syscalls_integers.h

-#ifdef CONFIG_X86_64
-#include "x86-32-syscalls-3.1.0-rc6_integers.h"
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/compat_syscalls_pointers.h

-#ifdef CONFIG_X86_64
-#include "x86-32-syscalls-3.1.0-rc6_pointers.h"
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/syscalls_integers.h

-#ifdef CONFIG_X86_64
-#include "x86-64-syscalls-3.0.4_integers.h"
-#endif
-
-#ifdef CONFIG_X86_32
-#include "x86-32-syscalls-3.1.0-rc6_integers.h"
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/syscalls_integers_override.h

-#define OVERRIDE_32_sys_mmap
-#define OVERRIDE_64_sys_mmap
-
-#ifndef CREATE_SYSCALL_TABLE
-
-SC_TRACE_EVENT(sys_mmap,
-	TP_PROTO(unsigned long addr, unsigned long len, unsigned long prot, unsigned long flags, unsigned long fd, unsigned long off),
-	TP_ARGS(addr, len, prot, flags, fd, off),
-	TP_STRUCT__entry(__field_hex(unsigned long, addr) __field(size_t, len) __field(int, prot) __field(int, flags) __field(int, fd) __field(off_t, offset)),
-	TP_fast_assign(tp_assign(addr, addr) tp_assign(len, len) tp_assign(prot, prot) tp_assign(flags, flags) tp_assign(fd, fd) tp_assign(offset, off)),
-	TP_printk()
-)
-
-#endif /* CREATE_SYSCALL_TABLE */

drivers/staging/lttng/instrumentation/syscalls/headers/syscalls_pointers.h

-#ifdef CONFIG_X86_64
-#include "x86-64-syscalls-3.0.4_pointers.h"
-#endif
-
-#ifdef CONFIG_X86_32
-#include "x86-32-syscalls-3.1.0-rc6_pointers.h"
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/syscalls_pointers_override.h

-/*
- * This is a place-holder for override defines for system calls with
- * pointers (all architectures).
- */

drivers/staging/lttng/instrumentation/syscalls/headers/syscalls_unknown.h

-#if !defined(_TRACE_SYSCALLS_UNKNOWN_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_SYSCALLS_UNKNOWN_H
-
-#include <linux/tracepoint.h>
-#include <linux/syscalls.h>
-
-#define UNKNOWN_SYSCALL_NRARGS	6
-
-TRACE_EVENT(sys_unknown,
-	TP_PROTO(unsigned int id, unsigned long *args),
-	TP_ARGS(id, args),
-	TP_STRUCT__entry(
-		__field(unsigned int, id)
-		__array(unsigned long, args, UNKNOWN_SYSCALL_NRARGS)
-	),
-	TP_fast_assign(
-		tp_assign(id, id)
-		tp_memcpy(args, args, UNKNOWN_SYSCALL_NRARGS * sizeof(*args))
-	),
-	TP_printk()
-)
-TRACE_EVENT(compat_sys_unknown,
-	TP_PROTO(unsigned int id, unsigned long *args),
-	TP_ARGS(id, args),
-	TP_STRUCT__entry(
-		__field(unsigned int, id)
-		__array(unsigned long, args, UNKNOWN_SYSCALL_NRARGS)
-	),
-	TP_fast_assign(
-		tp_assign(id, id)
-		tp_memcpy(args, args, UNKNOWN_SYSCALL_NRARGS * sizeof(*args))
-	),
-	TP_printk()
-)
-/* 
- * This is going to hook on sys_exit in the kernel.
- * We change the name so we don't clash with the sys_exit syscall entry
- * event.
- */
-TRACE_EVENT(exit_syscall,
-	TP_PROTO(struct pt_regs *regs, long ret),
-	TP_ARGS(regs, ret),
-	TP_STRUCT__entry(
-		__field(long, ret)
-	),
-	TP_fast_assign(
-		tp_assign(ret, ret)
-	),
-	TP_printk()
-)
-
-#endif /*  _TRACE_SYSCALLS_UNKNOWN_H */
-
-/* This part must be outside protection */
-#include "../../../probes/define_trace.h"

drivers/staging/lttng/instrumentation/syscalls/headers/x86-32-syscalls-3.1.0-rc6_integers_override.h

-#ifndef CONFIG_UID16
-
-#define OVERRIDE_32_sys_getuid16
-#define OVERRIDE_32_sys_getgid16
-#define OVERRIDE_32_sys_geteuid16
-#define OVERRIDE_32_sys_getegid16
-#define OVERRIDE_32_sys_setuid16
-#define OVERRIDE_32_sys_setgid16
-#define OVERRIDE_32_sys_setfsuid16
-#define OVERRIDE_32_sys_setfsgid16
-#define OVERRIDE_32_sys_setreuid16
-#define OVERRIDE_32_sys_setregid16
-#define OVERRIDE_32_sys_fchown16
-#define OVERRIDE_32_sys_setresuid16
-#define OVERRIDE_32_sys_setresgid16
-
-#define OVERRIDE_TABLE_32_sys_getuid16
-#define OVERRIDE_TABLE_32_sys_getgid16
-#define OVERRIDE_TABLE_32_sys_geteuid16
-#define OVERRIDE_TABLE_32_sys_getegid16
-#define OVERRIDE_TABLE_32_sys_setuid16
-#define OVERRIDE_TABLE_32_sys_setgid16
-#define OVERRIDE_TABLE_32_sys_setreuid16
-#define OVERRIDE_TABLE_32_sys_setregid16
-#define OVERRIDE_TABLE_32_sys_fchown16
-#define OVERRIDE_TABLE_32_sys_setfsuid16
-#define OVERRIDE_TABLE_32_sys_setfsgid16
-#define OVERRIDE_TABLE_32_sys_setresuid16
-#define OVERRIDE_TABLE_32_sys_setresgid16
-
-#endif
-
-#ifdef CREATE_SYSCALL_TABLE
-
-#define OVERRIDE_TABLE_32_sys_mmap
-TRACE_SYSCALL_TABLE(sys_mmap, sys_mmap, 90, 6)
-
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/x86-32-syscalls-3.1.0-rc6_pointers_override.h

-#ifndef CONFIG_UID16
-
-#define OVERRIDE_32_sys_getgroups16
-#define OVERRIDE_32_sys_setgroups16
-#define OVERRIDE_32_sys_lchown16
-#define OVERRIDE_32_sys_getresuid16
-#define OVERRIDE_32_sys_getresgid16
-#define OVERRIDE_32_sys_chown16
-
-#define OVERRIDE_TABLE_32_sys_getgroups16
-#define OVERRIDE_TABLE_32_sys_setgroups16
-#define OVERRIDE_TABLE_32_sys_lchown16
-#define OVERRIDE_TABLE_32_sys_getresuid16
-#define OVERRIDE_TABLE_32_sys_getresgid16
-#define OVERRIDE_TABLE_32_sys_chown16
-
-#endif

drivers/staging/lttng/instrumentation/syscalls/headers/x86-64-syscalls-3.0.4_integers_override.h

-/*
- * this is a place-holder for x86_64 interger syscall definition override.
- */

drivers/staging/lttng/instrumentation/syscalls/headers/x86-64-syscalls-3.0.4_pointers_override.h

-#ifndef CREATE_SYSCALL_TABLE
-
-#else	/* CREATE_SYSCALL_TABLE */
-
-#endif /* CREATE_SYSCALL_TABLE */

drivers/staging/lttng/instrumentation/syscalls/lttng-syscalls-extractor/Makefile

-obj-m += lttng-syscalls-extractor.o

drivers/staging/lttng/instrumentation/syscalls/lttng-syscalls-extractor/lttng-syscalls-extractor.c

-/*
- * Copyright 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright 2011 - Julien Desfossez <julien.desfossez@polymtl.ca>
- *
- * Dump syscall metadata to console.
- *
- * GPLv2 license.
- */
-
-#include <linux/module.h>
-#include <linux/kernel.h>
-#include <linux/types.h>
-#include <linux/list.h>
-#include <linux/err.h>
-#include <linux/slab.h>
-#include <linux/kallsyms.h>
-#include <linux/dcache.h>
-#include <linux/ftrace_event.h>
-#include <trace/syscall.h>
-
-#ifndef CONFIG_FTRACE_SYSCALLS
-#error "You need to set CONFIG_FTRACE_SYSCALLS=y"
-#endif
-
-#ifndef CONFIG_KALLSYMS_ALL
-#error "You need to set CONFIG_KALLSYMS_ALL=y"
-#endif
-
-static struct syscall_metadata **__start_syscalls_metadata;
-static struct syscall_metadata **__stop_syscalls_metadata;
-
-static __init
-struct syscall_metadata *find_syscall_meta(unsigned long syscall)
-{
-	struct syscall_metadata **iter;
-
-	for (iter = __start_syscalls_metadata;
-			iter < __stop_syscalls_metadata; iter++) {
-		if ((*iter)->syscall_nr == syscall)
-			return (*iter);
-	}
-	return NULL;
-}
-
-int init_module(void)
-{
-	struct syscall_metadata *meta;
-	int i;
-
-	__start_syscalls_metadata = (void *) kallsyms_lookup_name("__start_syscalls_metadata");
-	__stop_syscalls_metadata = (void *) kallsyms_lookup_name("__stop_syscalls_metadata");
-
-	for (i = 0; i < NR_syscalls; i++) {
-		int j;
-
-		meta = find_syscall_meta(i);
-		if (!meta)
-			continue;
-		printk("syscall %s nr %d nbargs %d ",
-			meta->name, meta->syscall_nr, meta->nb_args);
-		printk("types: (");
-		for (j = 0; j < meta->nb_args; j++) {
-			if (j > 0)
-				printk(", ");
-			printk("%s", meta->types[j]);
-		}
-		printk(") ");
-		printk("args: (");
-		for (j = 0; j < meta->nb_args; j++) {
-			if (j > 0)
-				printk(", ");
-			printk("%s", meta->args[j]);
-		}
-		printk(")\n");
-	}
-	printk("SUCCESS\n");
-
-	return -1;
-}
-
-void cleanup_module(void)
-{
-}  
-
-MODULE_LICENSE("GPL");

drivers/staging/lttng/instrumentation/syscalls/lttng-syscalls-generate-headers.sh

-#!/bin/sh
-
-# Generate system call probe description macros from syscall metadata dump file.
-# example usage:
-#
-# lttng-syscalls-generate-headers.sh integers 3.0.4 x86-64-syscalls-3.0.4 64
-# lttng-syscalls-generate-headers.sh pointers 3.0.4 x86-64-syscalls-3.0.4 64
-
-CLASS=$1
-INPUTDIR=$2
-INPUTFILE=$3
-BITNESS=$4
-INPUT=${INPUTDIR}/${INPUTFILE}
-SRCFILE=gen.tmp.0
-TMPFILE=gen.tmp.1
-HEADER=headers/${INPUTFILE}_${CLASS}.h
-
-cp ${INPUT} ${SRCFILE}
-
-#Cleanup
-perl -p -e 's/^\[.*\] //g' ${SRCFILE} > ${TMPFILE}
-mv ${TMPFILE} ${SRCFILE}
-
-perl -p -e 's/^syscall sys_([^ ]*)/syscall $1/g' ${SRCFILE} > ${TMPFILE}
-mv ${TMPFILE} ${SRCFILE}
-
-#Filter
-
-if [ "$CLASS" = integers ]; then
-	#select integers and no-args.
-	CLASSCAP=INTEGERS
-	grep -v "\\*\|cap_user_header_t" ${SRCFILE} > ${TMPFILE}
-	mv ${TMPFILE} ${SRCFILE}
-fi
-
-
-if [ "$CLASS" = pointers ]; then
-	#select system calls using pointers.
-	CLASSCAP=POINTERS
-	grep "\\*\|cap_#user_header_t" ${SRCFILE} > ${TMPFILE}
-	mv ${TMPFILE} ${SRCFILE}
-fi
-
-echo "/* THIS FILE IS AUTO-GENERATED. DO NOT EDIT */" > ${HEADER}
-
-echo \
-"#ifndef CREATE_SYSCALL_TABLE
-
-#if !defined(_TRACE_SYSCALLS_${CLASSCAP}_H) || defined(TRACE_HEADER_MULTI_READ)
-#define _TRACE_SYSCALLS_${CLASSCAP}_H
-
-#include <linux/tracepoint.h>
-#include <linux/syscalls.h>
-#include \"${INPUTFILE}_${CLASS}_override.h\"
-#include \"syscalls_${CLASS}_override.h\"
-" >> ${HEADER}
-
-if [ "$CLASS" = integers ]; then
-
-NRARGS=0
-
-echo \
-'SC_DECLARE_EVENT_CLASS_NOARGS(syscalls_noargs,\n'\
-'	TP_STRUCT__entry(),\n'\
-'	TP_fast_assign(),\n'\
-'	TP_printk()\n'\
-')'\
-	>> ${HEADER}
-
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^)]*)\) '\
-'args: \(([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_DEFINE_EVENT_NOARGS(syscalls_noargs, sys_$1)\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-fi
-
-
-# types: 4
-# args   5
-
-NRARGS=1
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^)]*)\) '\
-'args: \(([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $5),\n'\
-'	TP_ARGS($5),\n'\
-'	TP_STRUCT__entry(__field($4, $5)),\n'\
-'	TP_fast_assign(tp_assign($4, $5, $5)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-# types: 4 5
-# args   6 7
-
-NRARGS=2
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^,]*), ([^)]*)\) '\
-'args: \(([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $6, $5 $7),\n'\
-'	TP_ARGS($6, $7),\n'\
-'	TP_STRUCT__entry(__field($4, $6) __field($5, $7)),\n'\
-'	TP_fast_assign(tp_assign($4, $6, $6) tp_assign($5, $7, $7)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-# types: 4 5 6
-# args   7 8 9
-
-NRARGS=3
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^,]*), ([^,]*), ([^)]*)\) '\
-'args: \(([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $7, $5 $8, $6 $9),\n'\
-'	TP_ARGS($7, $8, $9),\n'\
-'	TP_STRUCT__entry(__field($4, $7) __field($5, $8) __field($6, $9)),\n'\
-'	TP_fast_assign(tp_assign($4, $7, $7) tp_assign($5, $8, $8) tp_assign($6, $9, $9)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-
-# types: 4 5  6  7
-# args   8 9 10 11
-
-NRARGS=4
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
-'args: \(([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $8, $5 $9, $6 $10, $7 $11),\n'\
-'	TP_ARGS($8, $9, $10, $11),\n'\
-'	TP_STRUCT__entry(__field($4, $8) __field($5, $9) __field($6, $10) __field($7, $11)),\n'\
-'	TP_fast_assign(tp_assign($4, $8, $8) tp_assign($5, $9, $9) tp_assign($6, $10, $10) tp_assign($7, $11, $11)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-# types: 4  5  6  7  8
-# args   9 10 11 12 13
-
-NRARGS=5
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\) '\
-'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $9, $5 $10, $6 $11, $7 $12, $8 $13),\n'\
-'	TP_ARGS($9, $10, $11, $12, $13),\n'\
-'	TP_STRUCT__entry(__field($4, $9) __field($5, $10) __field($6, $11) __field($7, $12) __field($8, $13)),\n'\
-'	TP_fast_assign(tp_assign($4, $9, $9) tp_assign($5, $10, $10) tp_assign($6, $11, $11) tp_assign($7, $12, $12) tp_assign($8, $13, $13)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-
-# types: 4   5  6  7  8  9
-# args   10 11 12 13 14 15
-
-NRARGS=6
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) '\
-'types: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\) '\
-'args: \(([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^,]*), ([^\)]*)\)/'\
-'#ifndef OVERRIDE_'"${BITNESS}"'_sys_$1\n'\
-'SC_TRACE_EVENT(sys_$1,\n'\
-'	TP_PROTO($4 $10, $5 $11, $6 $12, $7 $13, $8 $14, $9 $15),\n'\
-'	TP_ARGS($10, $11, $12, $13, $14, $15),\n'\
-'	TP_STRUCT__entry(__field($4, $10) __field($5, $11) __field($6, $12) __field($7, $13) __field($8, $14) __field($9, $15)),\n'\
-'	TP_fast_assign(tp_assign($4, $10, $10) tp_assign($5, $11, $11) tp_assign($6, $12, $12) tp_assign($7, $13, $13) tp_assign($8, $14, $14) tp_assign($9, $15, $15)),\n'\
-'	TP_printk()\n'\
-')\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-# Macro for tracing syscall table
-
-rm -f ${TMPFILE}
-for NRARGS in $(seq 0 6); do
-	grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} >> ${TMPFILE}
-done
-
-echo \
-"
-#endif /*  _TRACE_SYSCALLS_${CLASSCAP}_H */
-
-/* This part must be outside protection */
-#include \"../../../probes/define_trace.h\"
-
-#else /* CREATE_SYSCALL_TABLE */
-
-#include \"${INPUTFILE}_${CLASS}_override.h\"
-#include \"syscalls_${CLASS}_override.h\"
-" >> ${HEADER}
-
-NRARGS=0
-
-if [ "$CLASS" = integers ]; then
-#noargs
-grep "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
-'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\
-'TRACE_SYSCALL_TABLE\(syscalls_noargs, sys_$1, $2, $3\)\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-fi
-
-#others.
-grep -v "^syscall [^ ]* nr [^ ]* nbargs ${NRARGS} " ${SRCFILE} > ${TMPFILE}
-perl -p -e 's/^syscall ([^ ]*) nr ([^ ]*) nbargs ([^ ]*) .*$/'\
-'#ifndef OVERRIDE_TABLE_'"${BITNESS}"'_sys_$1\n'\
-'TRACE_SYSCALL_TABLE(sys_$1, sys_$1, $2, $3)\n'\
-'#endif/g'\
-	${TMPFILE} >> ${HEADER}
-
-echo -n \
-"
-#endif /* CREATE_SYSCALL_TABLE */
-" >> ${HEADER}
-
-#fields names: ...char * type with *name* or *file* or *path* or *root*
-# or *put_old* or *type*
-cp -f ${HEADER} ${TMPFILE}
-rm -f ${HEADER}
-perl -p -e 's/__field\(([^,)]*char \*), ([^\)]*)(name|file|path|root|put_old|type)([^\)]*)\)/__string_from_user($2$3$4, $2$3$4)/g'\
-	${TMPFILE} >> ${HEADER}
-cp -f ${HEADER} ${TMPFILE}
-rm -f ${HEADER}
-perl -p -e 's/tp_assign\(([^,)]*char \*), ([^,]*)(name|file|path|root|put_old|type)([^,]*), ([^\)]*)\)/tp_copy_string_from_user($2$3$4, $5)/g'\
-	${TMPFILE} >> ${HEADER}
-
-#prettify addresses heuristics.
-#field names with addr or ptr
-cp -f ${HEADER} ${TMPFILE}
-rm -f ${HEADER}
-perl -p -e 's/__field\(([^,)]*), ([^,)]*addr|[^,)]*ptr)([^),]*)\)/__field_hex($1, $2$3)/g'\
-	${TMPFILE} >> ${HEADER}
-
-#field types ending with '*'
-cp -f ${HEADER} ${TMPFILE}
-rm -f ${HEADER}
-perl -p -e 's/__field\(([^,)]*\*), ([^),]*)\)/__field_hex($1, $2)/g'\
-	${TMPFILE} >> ${HEADER}
-
-#strip the extra type information from tp_assign.
-cp -f ${HEADER} ${TMPFILE}
-rm -f ${HEADER}
-perl -p -e 's/tp_assign\(([^,)]*), ([^,]*), ([^\)]*)\)/tp_assign($2, $3)/g'\
-	${TMPFILE} >> ${HEADER}
-
-rm -f ${INPUTFILE}.tmp
-rm -f ${TMPFILE}
-rm -f ${SRCFILE}

drivers/staging/lttng/lib/Makefile

-obj-m += lib-ring-buffer.o
-
-lib-ring-buffer-objs := \
-	ringbuffer/ring_buffer_backend.o \
-	ringbuffer/ring_buffer_frontend.o \
-	ringbuffer/ring_buffer_iterator.o \
-	ringbuffer/ring_buffer_vfs.o \
-	ringbuffer/ring_buffer_splice.o \
-	ringbuffer/ring_buffer_mmap.o \
-	prio_heap/lttng_prio_heap.o \
-	../wrapper/splice.o

drivers/staging/lttng/lib/align.h

-#ifndef _LTTNG_ALIGN_H
-#define _LTTNG_ALIGN_H
-
-/*
- * lib/align.h
- *
- * (C) Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Dual LGPL v2.1/GPL v2 license.
- */
-
-#ifdef __KERNEL__
-
-#include <linux/types.h>
-#include "bug.h"
-
-#define ALIGN_FLOOR(x, a)	__ALIGN_FLOOR_MASK(x, (typeof(x)) (a) - 1)
-#define __ALIGN_FLOOR_MASK(x, mask)	((x) & ~(mask))
-#define PTR_ALIGN_FLOOR(p, a) \
-			((typeof(p)) ALIGN_FLOOR((unsigned long) (p), a))
-
-/*
- * Align pointer on natural object alignment.
- */
-#define object_align(obj)	PTR_ALIGN(obj, __alignof__(*(obj)))
-#define object_align_floor(obj)	PTR_ALIGN_FLOOR(obj, __alignof__(*(obj)))
-
-/**
- * offset_align - Calculate the offset needed to align an object on its natural
- *                alignment towards higher addresses.
- * @align_drift:  object offset from an "alignment"-aligned address.
- * @alignment:    natural object alignment. Must be non-zero, power of 2.
- *
- * Returns the offset that must be added to align towards higher
- * addresses.
- */
-#define offset_align(align_drift, alignment)				       \
-	({								       \
-		BUILD_RUNTIME_BUG_ON((alignment) == 0			       \
-				   || ((alignment) & ((alignment) - 1)));      \
-		(((alignment) - (align_drift)) & ((alignment) - 1));	       \
-	})
-
-/**
- * offset_align_floor - Calculate the offset needed to align an object
- *                      on its natural alignment towards lower addresses.
- * @align_drift:  object offset from an "alignment"-aligned address.
- * @alignment:    natural object alignment. Must be non-zero, power of 2.
- *
- * Returns the offset that must be substracted to align towards lower addresses.
- */
-#define offset_align_floor(align_drift, alignment)			       \
-	({								       \
-		BUILD_RUNTIME_BUG_ON((alignment) == 0			       \
-				   || ((alignment) & ((alignment) - 1)));      \
-		(((align_drift) - (alignment)) & ((alignment) - 1);	       \
-	})
-
-#endif /* __KERNEL__ */
-
-#endif

drivers/staging/lttng/lib/bug.h

-#ifndef _LTTNG_BUG_H
-#define _LTTNG_BUG_H
-
-/*
- * lib/bug.h
- *
- * (C) Copyright 2010-2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * Dual LGPL v2.1/GPL v2 license.
- */
-
-/**
- * BUILD_RUNTIME_BUG_ON - check condition at build (if constant) or runtime
- * @condition: the condition which should be false.
- *
- * If the condition is a constant and true, the compiler will generate a build
- * error. If the condition is not constant, a BUG will be triggered at runtime
- * if the condition is ever true. If the condition is constant and false, no
- * code is emitted.
- */
-#define BUILD_RUNTIME_BUG_ON(condition)				\
-	do {							\
-		if (__builtin_constant_p(condition))		\
-			BUILD_BUG_ON(condition);		\
-		else						\
-			BUG_ON(condition);			\
-	} while (0)
-
-#endif