nullpage_util.c File Reference

#include <stdio.h>
#include <errno.h>
#include <argp.h>
#include "log.h"
#include "arch.h"
#include "arch_x86.h"
#include "arch_x86_64.h"
#include "probe_api.h"
#include "probe.h"
#include "target.h"
#include "target_api.h"
#include "nullpage.h"

Include dependency graph for nullpage_util.c:

Go to the source code of this file.

Macros
#define	NP_ARGP_TTCTX   30000
#define	NP_ARGP_TTDETAIL   30001
#define	NP_PROT_READ   0x1
#define	NP_PROT_WRITE   0x2
#define	NP_PROT_EXEC   0x4
#define	NP_MAP_FIXED   0x10

Functions
error_t	np_argp_parse_opt (int key, char *arg, struct argp_state *state)
const char *	probe_gettype_np (struct probe *probe)
void *	probe_summarize_np (struct probe *probe)
int	probe_fini_np (struct probe *probe)
result_t	np_mmap_handler (struct probe *probe, tid_t tid, void *data, struct probe *trigger, struct probe *base)
result_t	np_mprotect_handler (struct probe *probe, tid_t tid, void *data, struct probe *trigger, struct probe *base)
result_t	np_pgfault_handler (struct probe *probe, tid_t tid, void *data, struct probe *trigger, struct probe *base)
struct probe *	probe_np (struct target *target, struct np_config *npc, probe_handler_t pre_handler, probe_handler_t post_handler, void *handler_data)

Variables
struct argp_option	np_argp_opts []
struct argp	np_argp

Macro Definition Documentation

#define NP_ARGP_TTCTX   30000

Definition at line 39 of file nullpage_util.c.

#define NP_ARGP_TTDETAIL   30001

Definition at line 40 of file nullpage_util.c.

#define NP_MAP_FIXED   0x10

Definition at line 162 of file nullpage_util.c.

#define NP_PROT_EXEC   0x4

Definition at line 160 of file nullpage_util.c.

#define NP_PROT_READ   0x1

Handlers for the subordinate probes that serve the metaprobe.

Definition at line 158 of file nullpage_util.c.

#define NP_PROT_WRITE   0x2

Definition at line 159 of file nullpage_util.c.

Function Documentation

error_t np_argp_parse_opt	(	int	key,
		char *	arg,
		struct argp_state *	state
	)

Argp parsing stuff.

Definition at line 52 of file nullpage_util.c.

result_t np_mmap_handler	(	struct probe *	probe,
		tid_t	tid,
		void *	data,
		struct probe *	trigger,
		struct probe *	base
	)

Definition at line 164 of file nullpage_util.c.

result_t np_mprotect_handler	(	struct probe *	probe,
		tid_t	tid,
		void *	data,
		struct probe *	trigger,
		struct probe *	base
	)

Definition at line 213 of file nullpage_util.c.

result_t np_pgfault_handler	(	struct probe *	probe,
		tid_t	tid,
		void *	data,
		struct probe *	trigger,
		struct probe *	base
	)

Definition at line 264 of file nullpage_util.c.

int probe_fini_np

(

struct probe *

probe

)

Definition at line 126 of file nullpage_util.c.

const char* probe_gettype_np

(

struct probe *

probe

)

Probe type stuff.

Definition at line 118 of file nullpage_util.c.

struct probe* probe_np	(	struct target *	target,
		struct np_config *	npc,
		probe_handler_t	pre_handler,
		probe_handler_t	post_handler,
		void *	handler_data
	)

Metaprobe instantiation: create a null-page r/w/x usage "probe".

Definition at line 335 of file nullpage_util.c.

void* probe_summarize_np

(

struct probe *

probe

)

Definition at line 122 of file nullpage_util.c.

Variable Documentation

struct argp np_argp

Initial value:

= {
    np_argp_opts,np_argp_parse_opt,NULL,NULL,NULL,NULL,NULL,
}

Definition at line 48 of file nullpage_util.c.

struct argp_option np_argp_opts[]

Initial value:

= {
    { "np-mode",'N',"[mprotect[,mmap[,pgfault]]]",0,"Set the mode for the NULL page usage detector.  mprotect is probably the cheapest option, because it is called less frequently than mmap, and must always be called to change protections for an mmap'd page (?).  The pgfault style will be most expensive.  To achieve certain, good coverage, choose all three!",0 },
    { "ttctx",NP_ARGP_TTCTX,"none|self|hier|all (default self)",0,"Which threads to display when an event happens.",0 },
    { "ttdetail",NP_ARGP_TTDETAIL,"-2|-1|0|1|2 (default 0)",0,"How much info to print for each thread that is printed.",0 },
    { 0,0,0,0,0,0 },
}

Definition at line 42 of file nullpage_util.c.