/home/stan/gdb/src/gdb/common/linux-ptrace.c File Reference

#include "defs.h"
#include "gdb_string.h"
#include "linux-ptrace.h"
#include "linux-procfs.h"
#include "nat/linux-waitpid.h"
#include "buffer.h"
#include "gdb_assert.h"
#include "gdb_wait.h"
#include <stdint.h>

Go to the source code of this file.

Functions
void	linux_ptrace_attach_warnings (pid_t pid, struct buffer *buffer)
static void	linux_ptrace_test_ret_to_nx (void)
static int	linux_fork_to_function (gdb_byte *child_stack, void(*function)(gdb_byte *))
static void	linux_grandchild_function (gdb_byte *child_stack)
static void	linux_child_function (gdb_byte *child_stack)
static void	linux_test_for_tracesysgood (int child_pid)
static void	linux_test_for_tracefork (int child_pid)
static void	linux_check_ptrace_features (void)
void	linux_enable_event_reporting (pid_t pid)
static int	ptrace_supports_feature (int ptrace_options)
int	linux_supports_tracefork (void)
int	linux_supports_traceclone (void)
int	linux_supports_tracevforkdone (void)
int	linux_supports_tracesysgood (void)
void	linux_ptrace_init_warnings (void)
Variables
static int	current_ptrace_options = -1

---

Function Documentation

static void linux_check_ptrace_features

(

void

)

[static]

Definition at line 317 of file linux-ptrace.c.

References _, current_ptrace_options, error(), linux_child_function(), linux_fork_to_function(), linux_test_for_tracefork(), linux_test_for_tracesysgood(), my_waitpid(), perror_with_name(), ptrace(), PTRACE_TYPE_ARG3, PTRACE_TYPE_ARG4, exsummary::status, and warning().

Referenced by linux_enable_event_reporting().

static void linux_child_function

(

gdb_byte *

child_stack

)

[static]

Definition at line 298 of file linux-ptrace.c.

References linux_fork_to_function(), linux_grandchild_function(), ptrace(), PTRACE_TYPE_ARG3, and PTRACE_TYPE_ARG4.

Referenced by linux_check_ptrace_features().

void linux_enable_event_reporting

(

pid_t

pid

)

Definition at line 467 of file linux-ptrace.c.

References current_ptrace_options, linux_check_ptrace_features(), ptrace(), PTRACE_TYPE_ARG3, and PTRACE_TYPE_ARG4.

Referenced by linux_init_ptrace().

static int linux_fork_to_function	(	gdb_byte *	child_stack,
		void(*)(gdb_byte *)	function
	)		[static]

Definition at line 245 of file linux-ptrace.c.

References gdb_assert, perror_with_name(), and xmalloc().

Referenced by linux_check_ptrace_features(), and linux_child_function().

static void linux_grandchild_function

(

gdb_byte *

child_stack

)

[static]

Definition at line 283 of file linux-ptrace.c.

References xfree().

Referenced by linux_child_function().

void linux_ptrace_attach_warnings	(	pid_t	pid,
		struct buffer *	buffer
	)

Definition at line 45 of file linux-ptrace.c.

References _, buffer_xml_printf(), linux_proc_get_tracerpid(), and linux_proc_pid_is_zombie().

Referenced by linux_nat_attach().

void linux_ptrace_init_warnings

(

void

)

Definition at line 535 of file linux-ptrace.c.

References linux_ptrace_test_ret_to_nx().

Referenced by linux_init_ptrace().

static void linux_ptrace_test_ret_to_nx

(

void

)

[static]

Definition at line 78 of file linux-ptrace.c.

References _, gdb_assert_not_reached, ptrace(), PTRACE_TYPE_ARG3, PTRACE_TYPE_ARG4, exsummary::status, strerror(), and warning().

Referenced by linux_ptrace_init_warnings().

int linux_supports_traceclone

(

void

)

Definition at line 508 of file linux-ptrace.c.

References ptrace_supports_feature().

int linux_supports_tracefork

(

void

)

Definition at line 497 of file linux-ptrace.c.

References ptrace_supports_feature().

Referenced by lin_lwp_attach_lwp(), linux_child_follow_fork(), linux_child_insert_exec_catchpoint(), linux_child_insert_fork_catchpoint(), and linux_child_insert_vfork_catchpoint().

int linux_supports_tracesysgood

(

void

)

Definition at line 526 of file linux-ptrace.c.

References ptrace_supports_feature().

Referenced by linux_child_set_syscall_catchpoint().

int linux_supports_tracevforkdone

(

void

)

Definition at line 517 of file linux-ptrace.c.

References ptrace_supports_feature().

Referenced by linux_child_follow_fork().

static void linux_test_for_tracefork

(

int

child_pid

)

[static]

Definition at line 378 of file linux-ptrace.c.

References _, current_ptrace_options, my_waitpid(), ptrace(), PTRACE_TYPE_ARG3, PTRACE_TYPE_ARG4, exsummary::status, and warning().

Referenced by linux_check_ptrace_features().

static void linux_test_for_tracesysgood

(

int

child_pid

)

[static]

Definition at line 360 of file linux-ptrace.c.

References current_ptrace_options, ptrace(), PTRACE_TYPE_ARG3, and PTRACE_TYPE_ARG4.

Referenced by linux_check_ptrace_features().

static int ptrace_supports_feature

(

int

ptrace_options

)

[static]

Definition at line 484 of file linux-ptrace.c.

References current_ptrace_options, and gdb_assert.

Referenced by linux_supports_traceclone(), linux_supports_tracefork(), linux_supports_tracesysgood(), and linux_supports_tracevforkdone().

---

Variable Documentation

int current_ptrace_options = -1 [static]

Definition at line 38 of file linux-ptrace.c.

Referenced by linux_check_ptrace_features(), linux_enable_event_reporting(), linux_test_for_tracefork(), linux_test_for_tracesysgood(), and ptrace_supports_feature().