ptrace.c File Reference

#include <linux/kernel.h>
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/errno.h>
#include <linux/ptrace.h>
#include <linux/regset.h>
#include <linux/tracehook.h>
#include <linux/elf.h>
#include <linux/user.h>
#include <linux/security.h>
#include <linux/signal.h>
#include <linux/seccomp.h>
#include <linux/audit.h>
#include <trace/syscall.h>
#include <linux/hw_breakpoint.h>
#include <linux/perf_event.h>
#include <asm/uaccess.h>
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/switch_to.h>
#include <trace/events/syscalls.h>

Go to the source code of this file.

Data Structures
struct	pt_regs_offset

Macros
#define	CREATE_TRACE_POINTS
#define	PARAMETER_SAVE_AREA_OFFSET   48 /* bytes */
#define	STR(s)   #s /* convert to string */
#define	REG_OFFSET_NAME(r)   {.name = #r, .offset = offsetof(struct pt_regs, r)}
#define	GPR_OFFSET_NAME(num)   {.name = STR(gpr##num), .offset = offsetof(struct pt_regs, gpr[num])}
#define	REG_OFFSET_END   {.name = NULL, .offset = 0}

: the name of a register
regs_query_register_offset() - query register offset from its name regs_query_register_offset() returns the offset of a register in struct pt_regs from its name. If the name is invalid, this returns -EINVAL;
#define	MSR_DEBUGCHANGE   (MSR_SE | MSR_BE)
#define	PT_MAX_PUT_REG   PT_CCR
enum	powerpc_regset { REGSET_GPR, REGSET_FPR }
int	regs_query_register_offset (const char *name)
const char *	regs_query_register_name (unsigned int offset)
unsigned long	ptrace_get_reg (struct task_struct *task, int regno)
int	ptrace_put_reg (struct task_struct *task, int regno, unsigned long data)
struct user_regset_view *	task_user_regset_view (struct task_struct *task)
void	user_enable_single_step (struct task_struct *task)
void	user_enable_block_step (struct task_struct *task)
void	user_disable_single_step (struct task_struct *task)
int	ptrace_set_debugreg (struct task_struct *task, unsigned long addr, unsigned long data)
void	ptrace_disable (struct task_struct *child)
long	arch_ptrace (struct task_struct *child, long request, unsigned long addr, unsigned long data)
long	do_syscall_trace_enter (struct pt_regs *regs)
void	do_syscall_trace_leave (struct pt_regs *regs)

Macro Definition Documentation

#define CREATE_TRACE_POINTS

Definition at line 41 of file ptrace.c.

#define GPR_OFFSET_NAME

(

num

)

{.name = STR(gpr##num), .offset = offsetof(struct pt_regs, gpr[num])}

Definition at line 61 of file ptrace.c.

#define MSR_DEBUGCHANGE   (MSR_SE | MSR_BE)

Definition at line 158 of file ptrace.c.

#define PARAMETER_SAVE_AREA_OFFSET   48 /* bytes */

Definition at line 51 of file ptrace.c.

#define PT_MAX_PUT_REG   PT_CCR

Definition at line 167 of file ptrace.c.

#define REG_OFFSET_END   {.name = NULL, .offset = 0}

Definition at line 63 of file ptrace.c.

#define REG_OFFSET_NAME

(

r

)

{.name = #r, .offset = offsetof(struct pt_regs, r)}

Definition at line 60 of file ptrace.c.

#define STR

(

s

)

#s /* convert to string */

Definition at line 59 of file ptrace.c.

Enumeration Type Documentation

enum powerpc_regset

Enumerator:

REGSET_GPR
REGSET_FPR

Definition at line 584 of file ptrace.c.

Function Documentation

long arch_ptrace	(	struct task_struct *	child,
		long	request,
		unsigned long	addr,
		unsigned long	data
	)

Definition at line 1438 of file ptrace.c.

long do_syscall_trace_enter

(

struct pt_regs *

regs

)

Definition at line 1670 of file ptrace.c.

void do_syscall_trace_leave

(

struct pt_regs *

regs

)

Definition at line 1706 of file ptrace.c.

void ptrace_disable

(

struct task_struct *

child

)

Definition at line 1033 of file ptrace.c.

unsigned long ptrace_get_reg	(	struct task_struct *	task,
		int	regno
	)

Definition at line 195 of file ptrace.c.

int ptrace_put_reg	(	struct task_struct *	task,
		int	regno,
		unsigned long	data
	)

Definition at line 212 of file ptrace.c.

int ptrace_set_debugreg	(	struct task_struct *	task,
		unsigned long	addr,
		unsigned long	data
	)

Definition at line 899 of file ptrace.c.

const char* regs_query_register_name

(

unsigned int

offset

)

regs_query_register_name() - query register name from its offset : the offset of a register in struct pt_regs.

regs_query_register_name() returns the name of a register from its offset in struct pt_regs. If the is invalid, this returns NULL;

Definition at line 138 of file ptrace.c.

int regs_query_register_offset

(

const char *

name

)

Definition at line 122 of file ptrace.c.

struct user_regset_view* task_user_regset_view ( struct task_struct *  tsk )

read

task_user_regset_view - Return the process's native regset view. : a thread of the process in question

Return the &struct user_regset_view that is native for the given process. For example, what it would access when it called ptrace(). Throughout the life of the process, this only changes at exec.

Definition at line 806 of file ptrace.c.

void user_disable_single_step

(

struct task_struct *

task

)

Definition at line 850 of file ptrace.c.

void user_enable_block_step

(

struct task_struct *

task

)

Definition at line 833 of file ptrace.c.

void user_enable_single_step

(

struct task_struct *

task

)

Definition at line 816 of file ptrace.c.