ptrace.h
上传用户:szlgq88
上传日期:2009-04-28
资源大小:48287k
文件大小:4k
- #ifndef _LINUX_PTRACE_H
- #define _LINUX_PTRACE_H
- /* ptrace.h */
- /* structs and defines to help the user use the ptrace system call. */
- /* has the defines to get at the registers. */
- #define PTRACE_TRACEME 0
- #define PTRACE_PEEKTEXT 1
- #define PTRACE_PEEKDATA 2
- #define PTRACE_PEEKUSR 3
- #define PTRACE_POKETEXT 4
- #define PTRACE_POKEDATA 5
- #define PTRACE_POKEUSR 6
- #define PTRACE_CONT 7
- #define PTRACE_KILL 8
- #define PTRACE_SINGLESTEP 9
- #define PTRACE_ATTACH 0x10
- #define PTRACE_DETACH 0x11
- #define PTRACE_SYSCALL 24
- #define PTRACE_SYSEMU 31
- #define PTRACE_SYSEMU_SINGLESTEP 32
- /* 0x4200-0x4300 are reserved for architecture-independent additions. */
- #define PTRACE_SETOPTIONS 0x4200
- #define PTRACE_GETEVENTMSG 0x4201
- #define PTRACE_GETSIGINFO 0x4202
- #define PTRACE_SETSIGINFO 0x4203
- /* options set using PTRACE_SETOPTIONS */
- #define PTRACE_O_TRACESYSGOOD 0x00000001
- #define PTRACE_O_TRACEFORK 0x00000002
- #define PTRACE_O_TRACEVFORK 0x00000004
- #define PTRACE_O_TRACECLONE 0x00000008
- #define PTRACE_O_TRACEEXEC 0x00000010
- #define PTRACE_O_TRACEVFORKDONE 0x00000020
- #define PTRACE_O_TRACEEXIT 0x00000040
- #define PTRACE_O_MASK 0x0000007f
- /* Wait extended result codes for the above trace options. */
- #define PTRACE_EVENT_FORK 1
- #define PTRACE_EVENT_VFORK 2
- #define PTRACE_EVENT_CLONE 3
- #define PTRACE_EVENT_EXEC 4
- #define PTRACE_EVENT_VFORK_DONE 5
- #define PTRACE_EVENT_EXIT 6
- #include <asm/ptrace.h>
- #ifdef __KERNEL__
- /*
- * Ptrace flags
- */
- #define PT_PTRACED 0x00000001
- #define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */
- #define PT_TRACESYSGOOD 0x00000004
- #define PT_PTRACE_CAP 0x00000008 /* ptracer can follow suid-exec */
- #define PT_TRACE_FORK 0x00000010
- #define PT_TRACE_VFORK 0x00000020
- #define PT_TRACE_CLONE 0x00000040
- #define PT_TRACE_EXEC 0x00000080
- #define PT_TRACE_VFORK_DONE 0x00000100
- #define PT_TRACE_EXIT 0x00000200
- #define PT_ATTACHED 0x00000400 /* parent != real_parent */
- #define PT_TRACE_MASK 0x000003f4
- /* single stepping state bits (used on ARM and PA-RISC) */
- #define PT_SINGLESTEP_BIT 31
- #define PT_SINGLESTEP (1<<PT_SINGLESTEP_BIT)
- #define PT_BLOCKSTEP_BIT 30
- #define PT_BLOCKSTEP (1<<PT_BLOCKSTEP_BIT)
- #include <linux/compiler.h> /* For unlikely. */
- #include <linux/sched.h> /* For struct task_struct. */
- extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len);
- extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len);
- extern int ptrace_attach(struct task_struct *tsk);
- extern int ptrace_detach(struct task_struct *, unsigned int);
- extern void ptrace_disable(struct task_struct *);
- extern int ptrace_check_attach(struct task_struct *task, int kill);
- extern int ptrace_request(struct task_struct *child, long request, long addr, long data);
- extern void ptrace_notify(int exit_code);
- extern void __ptrace_link(struct task_struct *child,
- struct task_struct *new_parent);
- extern void __ptrace_unlink(struct task_struct *child);
- extern void ptrace_untrace(struct task_struct *child);
- extern int ptrace_may_attach(struct task_struct *task);
- static inline void ptrace_link(struct task_struct *child,
- struct task_struct *new_parent)
- {
- if (unlikely(child->ptrace))
- __ptrace_link(child, new_parent);
- }
- static inline void ptrace_unlink(struct task_struct *child)
- {
- if (unlikely(child->ptrace))
- __ptrace_unlink(child);
- }
- #ifndef force_successful_syscall_return
- /*
- * System call handlers that, upon successful completion, need to return a
- * negative value should call force_successful_syscall_return() right before
- * returning. On architectures where the syscall convention provides for a
- * separate error flag (e.g., alpha, ia64, ppc{,64}, sparc{,64}, possibly
- * others), this macro can be used to ensure that the error flag will not get
- * set. On architectures which do not support a separate error flag, the macro
- * is a no-op and the spurious error condition needs to be filtered out by some
- * other means (e.g., in user-level, by passing an extra argument to the
- * syscall handler, or something along those lines).
- */
- #define force_successful_syscall_return() do { } while (0)
- #endif
- #endif
- #endif