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/slab.h>
#include <linux/ptrace.h>
#include <linux/regset.h>
#include <linux/tracehook.h>
#include <linux/user.h>
#include <linux/elf.h>
#include <linux/security.h>
#include <linux/audit.h>
#include <linux/seccomp.h>
#include <linux/signal.h>
#include <linux/perf_event.h>
#include <linux/hw_breakpoint.h>
#include <linux/rcupdate.h>
#include <linux/module.h>
#include <asm/uaccess.h>
#include <asm/pgtable.h>
#include <asm/processor.h>
#include <asm/i387.h>
#include <asm/fpu-internal.h>
#include <asm/debugreg.h>
#include <asm/ldt.h>
#include <asm/desc.h>
#include <asm/prctl.h>
#include <asm/proto.h>
#include <asm/hw_breakpoint.h>
#include <asm/traps.h>
#include "tls.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	REG_OFFSET_NAME(r)   {.name = #r, .offset = offsetof(struct pt_regs, r)}
#define	REG_OFFSET_END   {.name = NULL, .offset = 0}

Enumerations
enum	x86_regset {   REGSET_GENERAL, REGSET_FP, REGSET_XFP, REGSET_IOPERM64 = REGSET_XFP,   REGSET_XSTATE, REGSET_TLS, REGSET_IOPERM32 }

: 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	FLAG_MASK_32
#define	FLAG_MASK   (FLAG_MASK_32 | X86_EFLAGS_NT)
#define	user_regs_struct32   user_regs_struct
#define	genregs32_get   genregs_get
#define	genregs32_set   genregs_set
#define	IS_IA32   0
u64	xstate_fx_sw_bytes [USER_XSTATE_FX_SW_WORDS]
int	regs_query_register_offset (const char *name)
const char *	regs_query_register_name (unsigned int offset)
void	ptrace_disable (struct task_struct *child)
long	arch_ptrace (struct task_struct *child, long request, unsigned long addr, unsigned long data)
void	update_regset_xstate_info (unsigned int size, u64 xstate_mask)
struct user_regset_view *	task_user_regset_view (struct task_struct *task)
void	user_single_step_siginfo (struct task_struct *tsk, struct pt_regs *regs, struct siginfo *info)
void	send_sigtrap (struct task_struct *tsk, struct pt_regs *regs, int error_code, int si_code)
long	syscall_trace_enter (struct pt_regs *regs)
void	syscall_trace_leave (struct pt_regs *regs)

Macro Definition Documentation

#define CREATE_TRACE_POINTS

Definition at line 42 of file ptrace.c.

#define FLAG_MASK   (FLAG_MASK_32 | X86_EFLAGS_NT)

Definition at line 262 of file ptrace.c.

#define FLAG_MASK_32

Value:

((unsigned long)            \
                 (X86_EFLAGS_CF | X86_EFLAGS_PF |   \
                  X86_EFLAGS_AF | X86_EFLAGS_ZF |   \
                  X86_EFLAGS_SF | X86_EFLAGS_TF |   \
                  X86_EFLAGS_DF | X86_EFLAGS_OF |   \
                  X86_EFLAGS_RF | X86_EFLAGS_AC))

Definition at line 151 of file ptrace.c.

#define genregs32_get   genregs_get

Definition at line 1363 of file ptrace.c.

#define genregs32_set   genregs_set

Definition at line 1364 of file ptrace.c.

#define IS_IA32   0

Definition at line 1483 of file ptrace.c.

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

Definition at line 61 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 user_regs_struct32   user_regs_struct

Definition at line 1362 of file ptrace.c.

Enumeration Type Documentation

enum x86_regset

Enumerator:

REGSET_GENERAL
REGSET_FP
REGSET_XFP
REGSET_IOPERM64
REGSET_XSTATE
REGSET_TLS
REGSET_IOPERM32

Definition at line 45 of file ptrace.c.

Function Documentation

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

Definition at line 854 of file ptrace.c.

void ptrace_disable

(

struct task_struct *

child

)

Definition at line 842 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 119 of file ptrace.c.

int regs_query_register_offset

(

const char *

name

)

Definition at line 103 of file ptrace.c.

void send_sigtrap	(	struct task_struct *	tsk,
		struct pt_regs *	regs,
		int	error_code,
		int	si_code
	)

Definition at line 1467 of file ptrace.c.

long syscall_trace_enter

(

struct pt_regs *

regs

)

Definition at line 1490 of file ptrace.c.

void syscall_trace_leave

(

struct pt_regs *

regs

)

Definition at line 1540 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 1433 of file ptrace.c.

void update_regset_xstate_info	(	unsigned int	size,
		u64	xstate_mask
	)

Definition at line 1422 of file ptrace.c.

void user_single_step_siginfo	(	struct task_struct *	tsk,
		struct pt_regs *	regs,
		struct siginfo *	info
	)

Definition at line 1460 of file ptrace.c.

Variable Documentation

u64 xstate_fx_sw_bytes[USER_XSTATE_FX_SW_WORDS]

Definition at line 1420 of file ptrace.c.