Contributors: 21
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Frédéric Weisbecker |
431 |
65.20% |
10 |
31.25% |
| K.Prasad |
97 |
14.67% |
2 |
6.25% |
| Avi Kivity |
24 |
3.63% |
1 |
3.12% |
| Arnaldo Carvalho de Melo |
22 |
3.33% |
1 |
3.12% |
| Jason Wessel |
16 |
2.42% |
2 |
6.25% |
| Marco Elver |
14 |
2.12% |
1 |
3.12% |
| Milind Chabbi |
10 |
1.51% |
1 |
3.12% |
| Thomas Gleixner |
10 |
1.51% |
1 |
3.12% |
| Ashok Raj |
7 |
1.06% |
1 |
3.12% |
| Palmer Dabbelt |
6 |
0.91% |
1 |
3.12% |
| Linus Torvalds (pre-git) |
4 |
0.61% |
1 |
3.12% |
| Tejun Heo |
4 |
0.61% |
1 |
3.12% |
| David Howells |
3 |
0.45% |
1 |
3.12% |
| Rusty Russell |
2 |
0.30% |
1 |
3.12% |
| Tom Zanussi |
2 |
0.30% |
1 |
3.12% |
| Li Zefan |
2 |
0.30% |
1 |
3.12% |
| Mahesh Salgaonkar |
2 |
0.30% |
1 |
3.12% |
| Paul Mackerras |
2 |
0.30% |
1 |
3.12% |
| Erik Bosman |
1 |
0.15% |
1 |
3.12% |
| Jiri Olsa |
1 |
0.15% |
1 |
3.12% |
| Greg Kroah-Hartman |
1 |
0.15% |
1 |
3.12% |
| Total |
661 |
|
32 |
|
/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _LINUX_HW_BREAKPOINT_H
#define _LINUX_HW_BREAKPOINT_H
#include <linux/perf_event.h>
#include <uapi/linux/hw_breakpoint.h>
#ifdef CONFIG_HAVE_HW_BREAKPOINT
enum bp_type_idx {
TYPE_INST = 0,
#if defined(CONFIG_HAVE_MIXED_BREAKPOINTS_REGS)
TYPE_DATA = 0,
#else
TYPE_DATA = 1,
#endif
TYPE_MAX
};
extern int __init init_hw_breakpoint(void);
static inline void hw_breakpoint_init(struct perf_event_attr *attr)
{
memset(attr, 0, sizeof(*attr));
attr->type = PERF_TYPE_BREAKPOINT;
attr->size = sizeof(*attr);
/*
* As it's for in-kernel or ptrace use, we want it to be pinned
* and to call its callback every hits.
*/
attr->pinned = 1;
attr->sample_period = 1;
}
static inline void ptrace_breakpoint_init(struct perf_event_attr *attr)
{
hw_breakpoint_init(attr);
attr->exclude_kernel = 1;
}
static inline unsigned long hw_breakpoint_addr(struct perf_event *bp)
{
return bp->attr.bp_addr;
}
static inline int hw_breakpoint_type(struct perf_event *bp)
{
return bp->attr.bp_type;
}
static inline unsigned long hw_breakpoint_len(struct perf_event *bp)
{
return bp->attr.bp_len;
}
extern struct perf_event *
register_user_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context,
struct task_struct *tsk);
/* FIXME: only change from the attr, and don't unregister */
extern int
modify_user_hw_breakpoint(struct perf_event *bp, struct perf_event_attr *attr);
extern int
modify_user_hw_breakpoint_check(struct perf_event *bp, struct perf_event_attr *attr,
bool check);
/*
* Kernel breakpoints are not associated with any particular thread.
*/
extern struct perf_event *
register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context,
int cpu);
extern struct perf_event * __percpu *
register_wide_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context);
extern int register_perf_hw_breakpoint(struct perf_event *bp);
extern void unregister_hw_breakpoint(struct perf_event *bp);
extern void unregister_wide_hw_breakpoint(struct perf_event * __percpu *cpu_events);
extern bool hw_breakpoint_is_used(void);
extern int dbg_reserve_bp_slot(struct perf_event *bp);
extern int dbg_release_bp_slot(struct perf_event *bp);
extern int reserve_bp_slot(struct perf_event *bp);
extern void release_bp_slot(struct perf_event *bp);
extern void flush_ptrace_hw_breakpoint(struct task_struct *tsk);
static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
{
return &bp->hw.info;
}
#else /* !CONFIG_HAVE_HW_BREAKPOINT */
static inline int __init init_hw_breakpoint(void) { return 0; }
static inline struct perf_event *
register_user_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context,
struct task_struct *tsk) { return NULL; }
static inline int
modify_user_hw_breakpoint(struct perf_event *bp,
struct perf_event_attr *attr) { return -ENOSYS; }
static inline int
modify_user_hw_breakpoint_check(struct perf_event *bp, struct perf_event_attr *attr,
bool check) { return -ENOSYS; }
static inline struct perf_event *
register_wide_hw_breakpoint_cpu(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context,
int cpu) { return NULL; }
static inline struct perf_event * __percpu *
register_wide_hw_breakpoint(struct perf_event_attr *attr,
perf_overflow_handler_t triggered,
void *context) { return NULL; }
static inline int
register_perf_hw_breakpoint(struct perf_event *bp) { return -ENOSYS; }
static inline void unregister_hw_breakpoint(struct perf_event *bp) { }
static inline void
unregister_wide_hw_breakpoint(struct perf_event * __percpu *cpu_events) { }
static inline bool hw_breakpoint_is_used(void) { return false; }
static inline int
reserve_bp_slot(struct perf_event *bp) {return -ENOSYS; }
static inline void release_bp_slot(struct perf_event *bp) { }
static inline void flush_ptrace_hw_breakpoint(struct task_struct *tsk) { }
static inline struct arch_hw_breakpoint *counter_arch_bp(struct perf_event *bp)
{
return NULL;
}
#endif /* CONFIG_HAVE_HW_BREAKPOINT */
#endif /* _LINUX_HW_BREAKPOINT_H */