mirror of
https://github.com/torvalds/linux.git
synced 2024-11-19 02:21:47 +00:00
d3b63d7ae0
Since line_finder.lno_s/e are signed int but line_range.start/end are unsigned int, it is possible to be overflow when converting line_range->start/end to line_finder->lno_s/e. This changes line_range.start/end and line_list.line to signed int and adds overflow checks when setting line_finder.lno_s/e. LKML-Reference: <20100414223942.14630.72730.stgit@localhost6.localdomain6> Signed-off-by: Masami Hiramatsu <mhiramat@redhat.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Mike Galbraith <efault@gmx.de> Cc: Frederic Weisbecker <fweisbec@gmail.com> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
129 lines
3.8 KiB
C
129 lines
3.8 KiB
C
#ifndef _PROBE_EVENT_H
|
|
#define _PROBE_EVENT_H
|
|
|
|
#include <stdbool.h>
|
|
#include "strlist.h"
|
|
|
|
extern bool probe_event_dry_run;
|
|
|
|
/* kprobe-tracer tracing point */
|
|
struct kprobe_trace_point {
|
|
char *symbol; /* Base symbol */
|
|
unsigned long offset; /* Offset from symbol */
|
|
bool retprobe; /* Return probe flag */
|
|
};
|
|
|
|
/* kprobe-tracer tracing argument referencing offset */
|
|
struct kprobe_trace_arg_ref {
|
|
struct kprobe_trace_arg_ref *next; /* Next reference */
|
|
long offset; /* Offset value */
|
|
};
|
|
|
|
/* kprobe-tracer tracing argument */
|
|
struct kprobe_trace_arg {
|
|
char *name; /* Argument name */
|
|
char *value; /* Base value */
|
|
char *type; /* Type name */
|
|
struct kprobe_trace_arg_ref *ref; /* Referencing offset */
|
|
};
|
|
|
|
/* kprobe-tracer tracing event (point + arg) */
|
|
struct kprobe_trace_event {
|
|
char *event; /* Event name */
|
|
char *group; /* Group name */
|
|
struct kprobe_trace_point point; /* Trace point */
|
|
int nargs; /* Number of args */
|
|
struct kprobe_trace_arg *args; /* Arguments */
|
|
};
|
|
|
|
/* Perf probe probing point */
|
|
struct perf_probe_point {
|
|
char *file; /* File path */
|
|
char *function; /* Function name */
|
|
int line; /* Line number */
|
|
bool retprobe; /* Return probe flag */
|
|
char *lazy_line; /* Lazy matching pattern */
|
|
unsigned long offset; /* Offset from function entry */
|
|
};
|
|
|
|
/* Perf probe probing argument field chain */
|
|
struct perf_probe_arg_field {
|
|
struct perf_probe_arg_field *next; /* Next field */
|
|
char *name; /* Name of the field */
|
|
bool ref; /* Referencing flag */
|
|
};
|
|
|
|
/* Perf probe probing argument */
|
|
struct perf_probe_arg {
|
|
char *name; /* Argument name */
|
|
char *var; /* Variable name */
|
|
char *type; /* Type name */
|
|
struct perf_probe_arg_field *field; /* Structure fields */
|
|
};
|
|
|
|
/* Perf probe probing event (point + arg) */
|
|
struct perf_probe_event {
|
|
char *event; /* Event name */
|
|
char *group; /* Group name */
|
|
struct perf_probe_point point; /* Probe point */
|
|
int nargs; /* Number of arguments */
|
|
struct perf_probe_arg *args; /* Arguments */
|
|
};
|
|
|
|
|
|
/* Line number container */
|
|
struct line_node {
|
|
struct list_head list;
|
|
int line;
|
|
};
|
|
|
|
/* Line range */
|
|
struct line_range {
|
|
char *file; /* File name */
|
|
char *function; /* Function name */
|
|
int start; /* Start line number */
|
|
int end; /* End line number */
|
|
int offset; /* Start line offset */
|
|
char *path; /* Real path name */
|
|
struct list_head line_list; /* Visible lines */
|
|
};
|
|
|
|
/* Command string to events */
|
|
extern int parse_perf_probe_command(const char *cmd,
|
|
struct perf_probe_event *pev);
|
|
extern int parse_kprobe_trace_command(const char *cmd,
|
|
struct kprobe_trace_event *tev);
|
|
|
|
/* Events to command string */
|
|
extern char *synthesize_perf_probe_command(struct perf_probe_event *pev);
|
|
extern char *synthesize_kprobe_trace_command(struct kprobe_trace_event *tev);
|
|
extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf,
|
|
size_t len);
|
|
|
|
/* Check the perf_probe_event needs debuginfo */
|
|
extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);
|
|
|
|
/* Convert from kprobe_trace_event to perf_probe_event */
|
|
extern int convert_to_perf_probe_event(struct kprobe_trace_event *tev,
|
|
struct perf_probe_event *pev);
|
|
|
|
/* Release event contents */
|
|
extern void clear_perf_probe_event(struct perf_probe_event *pev);
|
|
extern void clear_kprobe_trace_event(struct kprobe_trace_event *tev);
|
|
|
|
/* Command string to line-range */
|
|
extern int parse_line_range_desc(const char *cmd, struct line_range *lr);
|
|
|
|
|
|
extern int add_perf_probe_events(struct perf_probe_event *pevs, int ntevs,
|
|
bool force_add);
|
|
extern int del_perf_probe_events(struct strlist *dellist);
|
|
extern int show_perf_probe_events(void);
|
|
extern int show_line_range(struct line_range *lr);
|
|
|
|
|
|
/* Maximum index number of event-name postfix */
|
|
#define MAX_EVENT_INDEX 1024
|
|
|
|
#endif /*_PROBE_EVENT_H */
|