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Merge branch 'tracing/core-v3' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into tracing/urgent

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This commit is contained in:
Ingo Molnar 2009-09-19 12:05:25 +02:00
commit be4bdbfbae
5 changed files with 234 additions and 87 deletions
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10
include/linux/ftrace_event.h
View file

@ -4,6 +4,7 @@
#include <linux/ring_buffer.h>
#include <linux/trace_seq.h>
#include <linux/percpu.h>
#include <linux/hardirq.h>
struct trace_array;
struct tracer;
@ -130,10 +131,15 @@ struct ftrace_event_call {
void *data;
atomic_t profile_count;
int (*profile_enable)(struct ftrace_event_call *);
void (*profile_disable)(struct ftrace_event_call *);
int (*profile_enable)(void);
void (*profile_disable)(void);
};
#define FTRACE_MAX_PROFILE_SIZE 2048
extern char *trace_profile_buf;
extern char *trace_profile_buf_nmi;
#define MAX_FILTER_PRED 32
#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */

24
include/linux/syscalls.h
View file

@ -100,33 +100,25 @@ struct perf_counter_attr;
#ifdef CONFIG_EVENT_PROFILE
#define TRACE_SYS_ENTER_PROFILE(sname) \
static int prof_sysenter_enable_##sname(struct ftrace_event_call *event_call) \
static int prof_sysenter_enable_##sname(void) \
{ \
int ret = 0; \
if (!atomic_inc_return(&event_enter_##sname.profile_count)) \
ret = reg_prof_syscall_enter("sys"#sname); \
return ret; \
return reg_prof_syscall_enter("sys"#sname); \
} \
\
static void prof_sysenter_disable_##sname(struct ftrace_event_call *event_call)\
static void prof_sysenter_disable_##sname(void) \
{ \
if (atomic_add_negative(-1, &event_enter_##sname.profile_count)) \
unreg_prof_syscall_enter("sys"#sname); \
unreg_prof_syscall_enter("sys"#sname); \
}
#define TRACE_SYS_EXIT_PROFILE(sname) \
static int prof_sysexit_enable_##sname(struct ftrace_event_call *event_call) \
static int prof_sysexit_enable_##sname(void) \
{ \
int ret = 0; \
if (!atomic_inc_return(&event_exit_##sname.profile_count)) \
ret = reg_prof_syscall_exit("sys"#sname); \
return ret; \
return reg_prof_syscall_exit("sys"#sname); \
} \
\
static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \
static void prof_sysexit_disable_##sname(void) \
{ \
if (atomic_add_negative(-1, &event_exit_##sname.profile_count)) \
unreg_prof_syscall_exit("sys"#sname); \
unreg_prof_syscall_exit("sys"#sname); \
}
#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \