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Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

Browse source 
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (162 commits)
  tracing/kprobes: unregister_trace_probe needs to be called under mutex
  perf: expose event__process function
  perf events: Fix mmap offset determination
  perf, powerpc: fsl_emb: Restore setting perf_sample_data.period
  perf, powerpc: Convert the FSL driver to use local64_t
  perf tools: Don't keep unreferenced maps when unmaps are detected
  perf session: Invalidate last_match when removing threads from rb_tree
  perf session: Free the ref_reloc_sym memory at the right place
  x86,mmiotrace: Add support for tracing STOS instruction
  perf, sched migration: Librarize task states and event headers helpers
  perf, sched migration: Librarize the GUI class
  perf, sched migration: Make the GUI class client agnostic
  perf, sched migration: Make it vertically scrollable
  perf, sched migration: Parameterize cpu height and spacing
  perf, sched migration: Fix key bindings
  perf, sched migration: Ignore unhandled task states
  perf, sched migration: Handle ignored migrate out events
  perf: New migration tool overview
  tracing: Drop cpparg() macro
  perf: Use tracepoint_synchronize_unregister() to flush any pending tracepoint call
  ...

Fix up trivial conflicts in Makefile and drivers/cpufreq/cpufreq.c
This commit is contained in:
Linus Torvalds 2010-08-06 09:30:52 -07:00
commit 4aed2fd8e3
179 changed files with 5611 additions and 4809 deletions
Download patch file Download diff file Expand all files Collapse all files

96
include/asm-generic/local64.h Normal file
View file

@ -0,0 +1,96 @@
#ifndef _ASM_GENERIC_LOCAL64_H
#define _ASM_GENERIC_LOCAL64_H
#include <linux/percpu.h>
#include <asm/types.h>
/*
* A signed long type for operations which are atomic for a single CPU.
* Usually used in combination with per-cpu variables.
*
* This is the default implementation, which uses atomic64_t. Which is
* rather pointless. The whole point behind local64_t is that some processors
* can perform atomic adds and subtracts in a manner which is atomic wrt IRQs
* running on this CPU. local64_t allows exploitation of such capabilities.
*/
/* Implement in terms of atomics. */
#if BITS_PER_LONG == 64
#include <asm/local.h>
typedef struct {
local_t a;
} local64_t;
#define LOCAL64_INIT(i) { LOCAL_INIT(i) }
#define local64_read(l) local_read(&(l)->a)
#define local64_set(l,i) local_set((&(l)->a),(i))
#define local64_inc(l) local_inc(&(l)->a)
#define local64_dec(l) local_dec(&(l)->a)
#define local64_add(i,l) local_add((i),(&(l)->a))
#define local64_sub(i,l) local_sub((i),(&(l)->a))
#define local64_sub_and_test(i, l) local_sub_and_test((i), (&(l)->a))
#define local64_dec_and_test(l) local_dec_and_test(&(l)->a)
#define local64_inc_and_test(l) local_inc_and_test(&(l)->a)
#define local64_add_negative(i, l) local_add_negative((i), (&(l)->a))
#define local64_add_return(i, l) local_add_return((i), (&(l)->a))
#define local64_sub_return(i, l) local_sub_return((i), (&(l)->a))
#define local64_inc_return(l) local_inc_return(&(l)->a)
#define local64_cmpxchg(l, o, n) local_cmpxchg((&(l)->a), (o), (n))
#define local64_xchg(l, n) local_xchg((&(l)->a), (n))
#define local64_add_unless(l, _a, u) local_add_unless((&(l)->a), (_a), (u))
#define local64_inc_not_zero(l) local_inc_not_zero(&(l)->a)
/* Non-atomic variants, ie. preemption disabled and won't be touched
* in interrupt, etc. Some archs can optimize this case well. */
#define __local64_inc(l) local64_set((l), local64_read(l) + 1)
#define __local64_dec(l) local64_set((l), local64_read(l) - 1)
#define __local64_add(i,l) local64_set((l), local64_read(l) + (i))
#define __local64_sub(i,l) local64_set((l), local64_read(l) - (i))
#else /* BITS_PER_LONG != 64 */
#include <asm/atomic.h>
/* Don't use typedef: don't want them to be mixed with atomic_t's. */
typedef struct {
atomic64_t a;
} local64_t;
#define LOCAL64_INIT(i) { ATOMIC_LONG_INIT(i) }
#define local64_read(l) atomic64_read(&(l)->a)
#define local64_set(l,i) atomic64_set((&(l)->a),(i))
#define local64_inc(l) atomic64_inc(&(l)->a)
#define local64_dec(l) atomic64_dec(&(l)->a)
#define local64_add(i,l) atomic64_add((i),(&(l)->a))
#define local64_sub(i,l) atomic64_sub((i),(&(l)->a))
#define local64_sub_and_test(i, l) atomic64_sub_and_test((i), (&(l)->a))
#define local64_dec_and_test(l) atomic64_dec_and_test(&(l)->a)
#define local64_inc_and_test(l) atomic64_inc_and_test(&(l)->a)
#define local64_add_negative(i, l) atomic64_add_negative((i), (&(l)->a))
#define local64_add_return(i, l) atomic64_add_return((i), (&(l)->a))
#define local64_sub_return(i, l) atomic64_sub_return((i), (&(l)->a))
#define local64_inc_return(l) atomic64_inc_return(&(l)->a)
#define local64_cmpxchg(l, o, n) atomic64_cmpxchg((&(l)->a), (o), (n))
#define local64_xchg(l, n) atomic64_xchg((&(l)->a), (n))
#define local64_add_unless(l, _a, u) atomic64_add_unless((&(l)->a), (_a), (u))
#define local64_inc_not_zero(l) atomic64_inc_not_zero(&(l)->a)
/* Non-atomic variants, ie. preemption disabled and won't be touched
* in interrupt, etc. Some archs can optimize this case well. */
#define __local64_inc(l) local64_set((l), local64_read(l) + 1)
#define __local64_dec(l) local64_set((l), local64_read(l) - 1)
#define __local64_add(i,l) local64_set((l), local64_read(l) + (i))
#define __local64_sub(i,l) local64_set((l), local64_read(l) - (i))
#endif /* BITS_PER_LONG != 64 */
#endif /* _ASM_GENERIC_LOCAL64_H */

4
include/asm-generic/vmlinux.lds.h
View file

@ -156,10 +156,6 @@
CPU_KEEP(exit.data) \
MEM_KEEP(init.data) \
MEM_KEEP(exit.data) \
. = ALIGN(8); \
VMLINUX_SYMBOL(__start___markers) = .; \
*(__markers) \
VMLINUX_SYMBOL(__stop___markers) = .; \
. = ALIGN(32); \
VMLINUX_SYMBOL(__start___tracepoints) = .; \
*(__tracepoints) \

5
include/linux/ftrace.h
View file

@ -1,3 +1,8 @@
/*
* Ftrace header. For implementation details beyond the random comments
* scattered below, see: Documentation/trace/ftrace-design.txt
*/
#ifndef _LINUX_FTRACE_H
#define _LINUX_FTRACE_H

18
include/linux/ftrace_event.h
View file

@ -11,8 +11,6 @@ struct trace_array;
struct tracer;
struct dentry;
DECLARE_PER_CPU(struct trace_seq, ftrace_event_seq);
struct trace_print_flags {
unsigned long mask;
const char *name;
@ -58,6 +56,9 @@ struct trace_iterator {
struct ring_buffer_iter *buffer_iter[NR_CPUS];
unsigned long iter_flags;
/* trace_seq for __print_flags() and __print_symbolic() etc. */
struct trace_seq tmp_seq;
/* The below is zeroed out in pipe_read */
struct trace_seq seq;
struct trace_entry *ent;
@ -146,14 +147,19 @@ struct ftrace_event_class {
int (*raw_init)(struct ftrace_event_call *);
};
extern int ftrace_event_reg(struct ftrace_event_call *event,
enum trace_reg type);
enum {
TRACE_EVENT_FL_ENABLED_BIT,
TRACE_EVENT_FL_FILTERED_BIT,
TRACE_EVENT_FL_RECORDED_CMD_BIT,
};
enum {
TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
TRACE_EVENT_FL_ENABLED = (1 << TRACE_EVENT_FL_ENABLED_BIT),
TRACE_EVENT_FL_FILTERED = (1 << TRACE_EVENT_FL_FILTERED_BIT),
TRACE_EVENT_FL_RECORDED_CMD = (1 << TRACE_EVENT_FL_RECORDED_CMD_BIT),
};
struct ftrace_event_call {
@ -171,6 +177,7 @@ struct ftrace_event_call {
* 32 bit flags:
* bit 1: enabled
* bit 2: filter_active
* bit 3: enabled cmd record
*
* Changes to flags must hold the event_mutex.
*
@ -257,8 +264,7 @@ static inline void
perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
u64 count, struct pt_regs *regs, void *head)
{
perf_tp_event(addr, count, raw_data, size, regs, head);
perf_swevent_put_recursion_context(rctx);
perf_tp_event(addr, count, raw_data, size, regs, head, rctx);
}
#endif

5
include/linux/kernel.h
View file

@ -513,9 +513,6 @@ extern void tracing_start(void);
extern void tracing_stop(void);
extern void ftrace_off_permanent(void);
extern void
ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
static inline void __attribute__ ((format (printf, 1, 2)))
____trace_printk_check_format(const char *fmt, ...)
{
@ -591,8 +588,6 @@ __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
#else
static inline void
ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
static inline int
trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));

25
include/linux/kmemtrace.h
View file

@ -1,25 +0,0 @@
/*
* Copyright (C) 2008 Eduard - Gabriel Munteanu
*
* This file is released under GPL version 2.
*/
#ifndef _LINUX_KMEMTRACE_H
#define _LINUX_KMEMTRACE_H
#ifdef __KERNEL__
#include <trace/events/kmem.h>
#ifdef CONFIG_KMEMTRACE
extern void kmemtrace_init(void);
#else
static inline void kmemtrace_init(void)
{
}
#endif
#endif /* __KERNEL__ */
#endif /* _LINUX_KMEMTRACE_H */

13
include/linux/nmi.h
View file

@ -20,10 +20,14 @@ extern void touch_nmi_watchdog(void);
extern void acpi_nmi_disable(void);
extern void acpi_nmi_enable(void);
#else
#ifndef CONFIG_HARDLOCKUP_DETECTOR
static inline void touch_nmi_watchdog(void)
{
touch_softlockup_watchdog();
}
#else
extern void touch_nmi_watchdog(void);
#endif
static inline void acpi_nmi_disable(void) { }
static inline void acpi_nmi_enable(void) { }
#endif
@ -47,4 +51,13 @@ static inline bool trigger_all_cpu_backtrace(void)
}
#endif
#ifdef CONFIG_LOCKUP_DETECTOR
int hw_nmi_is_cpu_stuck(struct pt_regs *);
u64 hw_nmi_get_sample_period(void);
extern int watchdog_enabled;
struct ctl_table;
extern int proc_dowatchdog_enabled(struct ctl_table *, int ,
void __user *, size_t *, loff_t *);
#endif
#endif

95
include/linux/perf_event.h
View file

@ -214,8 +214,9 @@ struct perf_event_attr {
* See also PERF_RECORD_MISC_EXACT_IP
*/
precise_ip : 2, /* skid constraint */
mmap_data : 1, /* non-exec mmap data */
__reserved_1 : 47;
__reserved_1 : 46;
union {
__u32 wakeup_events; /* wakeup every n events */
@ -461,6 +462,7 @@ enum perf_callchain_context {
#ifdef CONFIG_PERF_EVENTS
# include <asm/perf_event.h>
# include <asm/local64.h>
#endif
struct perf_guest_info_callbacks {
@ -531,14 +533,16 @@ struct hw_perf_event {
struct hrtimer hrtimer;
};
#ifdef CONFIG_HAVE_HW_BREAKPOINT
/* breakpoint */
struct arch_hw_breakpoint info;
struct { /* breakpoint */
struct arch_hw_breakpoint info;
struct list_head bp_list;
};
#endif
};
atomic64_t prev_count;
local64_t prev_count;
u64 sample_period;
u64 last_period;
atomic64_t period_left;
local64_t period_left;
u64 interrupts;
u64 freq_time_stamp;
@ -548,7 +552,10 @@ struct hw_perf_event {
struct perf_event;
#define PERF_EVENT_TXN_STARTED 1
/*
* Common implementation detail of pmu::{start,commit,cancel}_txn
*/
#define PERF_EVENT_TXN 0x1
/**
* struct pmu - generic performance monitoring unit
@ -562,14 +569,28 @@ struct pmu {
void (*unthrottle) (struct perf_event *event);
/*
* group events scheduling is treated as a transaction,
* add group events as a whole and perform one schedulability test.
* If test fails, roll back the whole group
* Group events scheduling is treated as a transaction, add group
* events as a whole and perform one schedulability test. If the test
* fails, roll back the whole group
*/
/*
* Start the transaction, after this ->enable() doesn't need
* to do schedulability tests.
*/
void (*start_txn) (const struct pmu *pmu);
void (*cancel_txn) (const struct pmu *pmu);
/*
* If ->start_txn() disabled the ->enable() schedulability test
* then ->commit_txn() is required to perform one. On success
* the transaction is closed. On error the transaction is kept
* open until ->cancel_txn() is called.
*/
int (*commit_txn) (const struct pmu *pmu);
/*
* Will cancel the transaction, assumes ->disable() is called for
* each successfull ->enable() during the transaction.
*/
void (*cancel_txn) (const struct pmu *pmu);
};
/**
@ -584,7 +605,9 @@ enum perf_event_active_state {
struct file;
struct perf_mmap_data {
#define PERF_BUFFER_WRITABLE 0x01
struct perf_buffer {
atomic_t refcount;
struct rcu_head rcu_head;
#ifdef CONFIG_PERF_USE_VMALLOC
@ -650,7 +673,8 @@ struct perf_event {
enum perf_event_active_state state;
unsigned int attach_state;
atomic64_t count;
local64_t count;
atomic64_t child_count;
/*
* These are the total time in nanoseconds that the event
@ -709,7 +733,7 @@ struct perf_event {
atomic_t mmap_count;
int mmap_locked;
struct user_struct *mmap_user;
struct perf_mmap_data *data;
struct perf_buffer *buffer;
/* poll related */
wait_queue_head_t waitq;
@ -807,7 +831,7 @@ struct perf_cpu_context {
struct perf_output_handle {
struct perf_event *event;
struct perf_mmap_data *data;
struct perf_buffer *buffer;
unsigned long wakeup;
unsigned long size;
void *addr;
@ -910,8 +934,10 @@ extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX];
extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64);
extern void
perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
#ifndef perf_arch_fetch_caller_regs
static inline void
perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip) { }
#endif
/*
* Take a snapshot of the regs. Skip ip and frame pointer to
@ -921,31 +947,11 @@ perf_arch_fetch_caller_regs(struct pt_regs *regs, unsigned long ip, int skip);
* - bp for callchains
* - eflags, for future purposes, just in case
*/
static inline void perf_fetch_caller_regs(struct pt_regs *regs, int skip)
static inline void perf_fetch_caller_regs(struct pt_regs *regs)
{
unsigned long ip;
memset(regs, 0, sizeof(*regs));
switch (skip) {
case 1 :
ip = CALLER_ADDR0;
break;
case 2 :
ip = CALLER_ADDR1;
break;
case 3 :
ip = CALLER_ADDR2;
break;
case 4:
ip = CALLER_ADDR3;
break;
/* No need to support further for now */
default:
ip = 0;
}
return perf_arch_fetch_caller_regs(regs, ip, skip);
perf_arch_fetch_caller_regs(regs, CALLER_ADDR0);
}
static inline void
@ -955,21 +961,14 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr)
struct pt_regs hot_regs;
if (!regs) {
perf_fetch_caller_regs(&hot_regs, 1);
perf_fetch_caller_regs(&hot_regs);
regs = &hot_regs;
}
__perf_sw_event(event_id, nr, nmi, regs, addr);
}
}
extern void __perf_event_mmap(struct vm_area_struct *vma);
static inline void perf_event_mmap(struct vm_area_struct *vma)
{
if (vma->vm_flags & VM_EXEC)
__perf_event_mmap(vma);
}
extern void perf_event_mmap(struct vm_area_struct *vma);
extern struct perf_guest_info_callbacks *perf_guest_cbs;
extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks);
@ -1001,7 +1000,7 @@ static inline bool perf_paranoid_kernel(void)
extern void perf_event_init(void);
extern void perf_tp_event(u64 addr, u64 count, void *record,
int entry_size, struct pt_regs *regs,
struct hlist_head *head);
struct hlist_head *head, int rctx);
extern void perf_bp_event(struct perf_event *event, void *data);
#ifndef perf_misc_flags

24
include/linux/sched.h
View file

@ -316,20 +316,16 @@ extern void scheduler_tick(void);
extern void sched_show_task(struct task_struct *p);
#ifdef CONFIG_DETECT_SOFTLOCKUP
extern void softlockup_tick(void);
#ifdef CONFIG_LOCKUP_DETECTOR
extern void touch_softlockup_watchdog(void);
extern void touch_softlockup_watchdog_sync(void);
extern void touch_all_softlockup_watchdogs(void);
extern int proc_dosoftlockup_thresh(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos);
extern int proc_dowatchdog_thresh(struct ctl_table *table, int write,
void __user *buffer,
size_t *lenp, loff_t *ppos);
extern unsigned int softlockup_panic;
extern int softlockup_thresh;
#else
static inline void softlockup_tick(void)
{
}
static inline void touch_softlockup_watchdog(void)
{
}
@ -2435,18 +2431,6 @@ static inline void set_task_cpu(struct task_struct *p, unsigned int cpu)
#endif /* CONFIG_SMP */
#ifdef CONFIG_TRACING
extern void
__trace_special(void *__tr, void *__data,
unsigned long arg1, unsigned long arg2, unsigned long arg3);
#else
static inline void
__trace_special(void *__tr, void *__data,
unsigned long arg1, unsigned long arg2, unsigned long arg3)
{
}
#endif
extern long sched_setaffinity(pid_t pid, const struct cpumask *new_mask);
extern long sched_getaffinity(pid_t pid, struct cpumask *mask);

3
include/linux/slab_def.h
View file

@ -14,7 +14,8 @@
#include <asm/page.h> /* kmalloc_sizes.h needs PAGE_SIZE */
#include <asm/cache.h> /* kmalloc_sizes.h needs L1_CACHE_BYTES */
#include <linux/compiler.h>
#include <linux/kmemtrace.h>
#include <trace/events/kmem.h>
#ifndef ARCH_KMALLOC_MINALIGN
/*

3
include/linux/slub_def.h
View file

@ -10,9 +10,10 @@
#include <linux/gfp.h>
#include <linux/workqueue.h>
#include <linux/kobject.h>
#include <linux/kmemtrace.h>
#include <linux/kmemleak.h>
#include <trace/events/kmem.h>
enum stat_item {
ALLOC_FASTPATH, /* Allocation from cpu slab */
ALLOC_SLOWPATH, /* Allocation by getting a new cpu slab */

2
include/linux/syscalls.h
View file

@ -167,7 +167,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.enter_event = &event_enter_##sname, \
.exit_event = &event_exit_##sname, \
.enter_fields = LIST_HEAD_INIT(__syscall_meta_##sname.enter_fields), \
.exit_fields = LIST_HEAD_INIT(__syscall_meta_##sname.exit_fields), \
};
#define SYSCALL_DEFINE0(sname) \
@ -182,7 +181,6 @@ extern struct trace_event_functions exit_syscall_print_funcs;
.enter_event = &event_enter__##sname, \
.exit_event = &event_exit__##sname, \
.enter_fields = LIST_HEAD_INIT(__syscall_meta__##sname.enter_fields), \
.exit_fields = LIST_HEAD_INIT(__syscall_meta__##sname.exit_fields), \
}; \
asmlinkage long sys_##sname(void)
#else

60
include/trace/boot.h
View file

@ -1,60 +0,0 @@
#ifndef _LINUX_TRACE_BOOT_H
#define _LINUX_TRACE_BOOT_H
#include <linux/module.h>
#include <linux/kallsyms.h>
#include <linux/init.h>
/*
* Structure which defines the trace of an initcall
* while it is called.
* You don't have to fill the func field since it is
* only used internally by the tracer.
*/
struct boot_trace_call {
pid_t caller;
char func[KSYM_SYMBOL_LEN];
};
/*
* Structure which defines the trace of an initcall
* while it returns.
*/
struct boot_trace_ret {
char func[KSYM_SYMBOL_LEN];
int result;
unsigned long long duration; /* nsecs */
};
#ifdef CONFIG_BOOT_TRACER
/* Append the traces on the ring-buffer */
extern void trace_boot_call(struct boot_trace_call *bt, initcall_t fn);
extern void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn);
/* Tells the tracer that smp_pre_initcall is finished.
* So we can start the tracing
*/
extern void start_boot_trace(void);
/* Resume the tracing of other necessary events
* such as sched switches
*/
extern void enable_boot_trace(void);
/* Suspend this tracing. Actually, only sched_switches tracing have
* to be suspended. Initcalls doesn't need it.)
*/
extern void disable_boot_trace(void);
#else
static inline
void trace_boot_call(struct boot_trace_call *bt, initcall_t fn) { }
static inline
void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn) { }
static inline void start_boot_trace(void) { }
static inline void enable_boot_trace(void) { }
static inline void disable_boot_trace(void) { }
#endif /* CONFIG_BOOT_TRACER */
#endif /* __LINUX_TRACE_BOOT_H */

32
include/trace/events/sched.h
View file

@ -49,31 +49,6 @@ TRACE_EVENT(sched_kthread_stop_ret,
TP_printk("ret=%d", __entry->ret)
);
/*
* Tracepoint for waiting on task to unschedule:
*/
TRACE_EVENT(sched_wait_task,
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 waking up a task:
*/
@ -239,6 +214,13 @@ 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:
*/

80
include/trace/events/timer.h
View file

@ -8,11 +8,7 @@
#include <linux/hrtimer.h>
#include <linux/timer.h>
/**
* timer_init - called when the timer is initialized
* @timer: pointer to struct timer_list
*/
TRACE_EVENT(timer_init,
DECLARE_EVENT_CLASS(timer_class,
TP_PROTO(struct timer_list *timer),
@ -29,6 +25,17 @@ TRACE_EVENT(timer_init,
TP_printk("timer=%p", __entry->timer)
);
/**
* timer_init - called when the timer is initialized
* @timer: pointer to struct timer_list
*/
DEFINE_EVENT(timer_class, timer_init,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer)
);
/**
* timer_start - called when the timer is started
* @timer: pointer to struct timer_list
@ -94,42 +101,22 @@ TRACE_EVENT(timer_expire_entry,
* NOTE: Do NOT derefernce timer in TP_fast_assign. The pointer might
* be invalid. We solely track the pointer.
*/
TRACE_EVENT(timer_expire_exit,
DEFINE_EVENT(timer_class, timer_expire_exit,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field(void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("timer=%p", __entry->timer)
TP_ARGS(timer)
);
/**
* timer_cancel - called when the timer is canceled
* @timer: pointer to struct timer_list
*/
TRACE_EVENT(timer_cancel,
DEFINE_EVENT(timer_class, timer_cancel,
TP_PROTO(struct timer_list *timer),
TP_ARGS(timer),
TP_STRUCT__entry(
__field( void *, timer )
),
TP_fast_assign(
__entry->timer = timer;
),
TP_printk("timer=%p", __entry->timer)
TP_ARGS(timer)
);
/**
@ -224,14 +211,7 @@ TRACE_EVENT(hrtimer_expire_entry,
(unsigned long long)ktime_to_ns((ktime_t) { .tv64 = __entry->now }))
);
/**
* hrtimer_expire_exit - called immediately after the hrtimer callback returns
* @timer: pointer to struct hrtimer
*
* When used in combination with the hrtimer_expire_entry tracepoint we can
* determine the runtime of the callback function.
*/
TRACE_EVENT(hrtimer_expire_exit,
DECLARE_EVENT_CLASS(hrtimer_class,
TP_PROTO(struct hrtimer *hrtimer),
@ -249,24 +229,28 @@ TRACE_EVENT(hrtimer_expire_exit,
);
/**
* hrtimer_cancel - called when the hrtimer is canceled
* @hrtimer: pointer to struct hrtimer
* hrtimer_expire_exit - called immediately after the hrtimer callback returns
* @timer: pointer to struct hrtimer
*
* When used in combination with the hrtimer_expire_entry tracepoint we can
* determine the runtime of the callback function.
*/
TRACE_EVENT(hrtimer_cancel,
DEFINE_EVENT(hrtimer_class, hrtimer_expire_exit,
TP_PROTO(struct hrtimer *hrtimer),
TP_ARGS(hrtimer),
TP_ARGS(hrtimer)
);
TP_STRUCT__entry(
__field( void *, hrtimer )
),
/**
* hrtimer_cancel - called when the hrtimer is canceled
* @hrtimer: pointer to struct hrtimer
*/
DEFINE_EVENT(hrtimer_class, hrtimer_cancel,
TP_fast_assign(
__entry->hrtimer = hrtimer;
),
TP_PROTO(struct hrtimer *hrtimer),
TP_printk("hrtimer=%p", __entry->hrtimer)
TP_ARGS(hrtimer)
);
/**

23
include/trace/ftrace.h
View file

@ -75,15 +75,12 @@
#define DEFINE_EVENT_PRINT(template, name, proto, args, print) \
DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args))
#undef __cpparg
#define __cpparg(arg...) arg
/* Callbacks are meaningless to ftrace. */
#undef TRACE_EVENT_FN
#define TRACE_EVENT_FN(name, proto, args, tstruct, \
assign, print, reg, unreg) \
TRACE_EVENT(name, __cpparg(proto), __cpparg(args), \
__cpparg(tstruct), __cpparg(assign), __cpparg(print)) \
TRACE_EVENT(name, PARAMS(proto), PARAMS(args), \
PARAMS(tstruct), PARAMS(assign), PARAMS(print)) \
#include TRACE_INCLUDE(TRACE_INCLUDE_FILE)
@ -145,7 +142,7 @@
* struct trace_seq *s = &iter->seq;
* struct ftrace_raw_<call> *field; <-- defined in stage 1
* struct trace_entry *entry;
* struct trace_seq *p;
* struct trace_seq *p = &iter->tmp_seq;
* int ret;
*
* entry = iter->ent;
@ -157,12 +154,10 @@
*
* field = (typeof(field))entry;
*
* p = &get_cpu_var(ftrace_event_seq);
* trace_seq_init(p);
* ret = trace_seq_printf(s, "%s: ", <call>);
* if (ret)
* ret = trace_seq_printf(s, <TP_printk> "\n");
* put_cpu();
* if (!ret)
* return TRACE_TYPE_PARTIAL_LINE;
*
@ -216,7 +211,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##call *field; \
struct trace_entry *entry; \
struct trace_seq *p; \
struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
event = container_of(trace_event, struct ftrace_event_call, \
@ -231,12 +226,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", event->name); \
if (ret) \
ret = trace_seq_printf(s, print); \
put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
@ -255,7 +248,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
struct trace_seq *s = &iter->seq; \
struct ftrace_raw_##template *field; \
struct trace_entry *entry; \
struct trace_seq *p; \
struct trace_seq *p = &iter->tmp_seq; \
int ret; \
\
entry = iter->ent; \
@ -267,12 +260,10 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags, \
\
field = (typeof(field))entry; \
\
p = &get_cpu_var(ftrace_event_seq); \
trace_seq_init(p); \
ret = trace_seq_printf(s, "%s: ", #call); \
if (ret) \
ret = trace_seq_printf(s, print); \
put_cpu(); \
if (!ret) \
return TRACE_TYPE_PARTIAL_LINE; \
\
@ -439,6 +430,7 @@ static inline notrace int ftrace_get_offsets_##call( \
* .fields = LIST_HEAD_INIT(event_class_##call.fields),
* .raw_init = trace_event_raw_init,
* .probe = ftrace_raw_event_##call,
* .reg = ftrace_event_reg,
* };
*
* static struct ftrace_event_call __used
@ -567,6 +559,7 @@ static struct ftrace_event_class __used event_class_##call = { \
.fields = LIST_HEAD_INIT(event_class_##call.fields),\
.raw_init = trace_event_raw_init, \
.probe = ftrace_raw_event_##call, \
.reg = ftrace_event_reg, \
_TRACE_PERF_INIT(call) \
};
@ -705,7 +698,7 @@ perf_trace_##call(void *__data, proto) \
int __data_size; \
int rctx; \
\
perf_fetch_caller_regs(&__regs, 1); \
perf_fetch_caller_regs(&__regs); \
\
__data_size = ftrace_get_offsets_##call(&__data_offsets, args); \
__entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\

1
include/trace/syscall.h
View file

@ -26,7 +26,6 @@ struct syscall_metadata {
const char **types;
const char **args;
struct list_head enter_fields;
struct list_head exit_fields;
struct ftrace_event_call *enter_event;
struct ftrace_event_call *exit_event;