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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 422 | giacomo | 1 | #ifndef _LINUX_PTRACE_H |
| 2 | #define _LINUX_PTRACE_H |
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| 3 | /* ptrace.h */ |
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| 4 | /* structs and defines to help the user use the ptrace system call. */ |
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| 5 | |||
| 6 | /* has the defines to get at the registers. */ |
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| 7 | |||
| 8 | #define PTRACE_TRACEME 0 |
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| 9 | #define PTRACE_PEEKTEXT 1 |
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| 10 | #define PTRACE_PEEKDATA 2 |
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| 11 | #define PTRACE_PEEKUSR 3 |
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| 12 | #define PTRACE_POKETEXT 4 |
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| 13 | #define PTRACE_POKEDATA 5 |
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| 14 | #define PTRACE_POKEUSR 6 |
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| 15 | #define PTRACE_CONT 7 |
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| 16 | #define PTRACE_KILL 8 |
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| 17 | #define PTRACE_SINGLESTEP 9 |
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| 18 | |||
| 19 | #define PTRACE_ATTACH 0x10 |
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| 20 | #define PTRACE_DETACH 0x11 |
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| 21 | |||
| 22 | #define PTRACE_SYSCALL 24 |
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| 23 | |||
| 24 | /* 0x4200-0x4300 are reserved for architecture-independent additions. */ |
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| 25 | #define PTRACE_SETOPTIONS 0x4200 |
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| 26 | #define PTRACE_GETEVENTMSG 0x4201 |
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| 27 | #define PTRACE_GETSIGINFO 0x4202 |
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| 28 | #define PTRACE_SETSIGINFO 0x4203 |
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| 29 | |||
| 30 | /* options set using PTRACE_SETOPTIONS */ |
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| 31 | #define PTRACE_O_TRACESYSGOOD 0x00000001 |
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| 32 | #define PTRACE_O_TRACEFORK 0x00000002 |
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| 33 | #define PTRACE_O_TRACEVFORK 0x00000004 |
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| 34 | #define PTRACE_O_TRACECLONE 0x00000008 |
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| 35 | #define PTRACE_O_TRACEEXEC 0x00000010 |
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| 36 | #define PTRACE_O_TRACEVFORKDONE 0x00000020 |
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| 37 | #define PTRACE_O_TRACEEXIT 0x00000040 |
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| 38 | |||
| 39 | #define PTRACE_O_MASK 0x0000007f |
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| 40 | |||
| 41 | /* Wait extended result codes for the above trace options. */ |
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| 42 | #define PTRACE_EVENT_FORK 1 |
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| 43 | #define PTRACE_EVENT_VFORK 2 |
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| 44 | #define PTRACE_EVENT_CLONE 3 |
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| 45 | #define PTRACE_EVENT_EXEC 4 |
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| 46 | #define PTRACE_EVENT_VFORK_DONE 5 |
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| 47 | #define PTRACE_EVENT_EXIT 6 |
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| 48 | |||
| 49 | #include <asm/ptrace.h> |
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| 50 | |||
| 51 | #ifdef __KERNEL__ |
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| 52 | /* |
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| 53 | * Ptrace flags |
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| 54 | */ |
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| 55 | |||
| 56 | #define PT_PTRACED 0x00000001 |
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| 57 | #define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */ |
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| 58 | #define PT_TRACESYSGOOD 0x00000004 |
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| 59 | #define PT_PTRACE_CAP 0x00000008 /* ptracer can follow suid-exec */ |
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| 60 | #define PT_TRACE_FORK 0x00000010 |
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| 61 | #define PT_TRACE_VFORK 0x00000020 |
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| 62 | #define PT_TRACE_CLONE 0x00000040 |
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| 63 | #define PT_TRACE_EXEC 0x00000080 |
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| 64 | #define PT_TRACE_VFORK_DONE 0x00000100 |
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| 65 | #define PT_TRACE_EXIT 0x00000200 |
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| 66 | |||
| 67 | #define PT_TRACE_MASK 0x000003f4 |
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| 68 | #define PT_SINGLESTEP 0x80000000 /* single stepping (used on ARM) */ |
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| 69 | |||
| 70 | #include <linux/compiler.h> /* For unlikely. */ |
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| 71 | #include <linux/sched.h> /* For struct task_struct. */ |
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| 72 | |||
| 73 | extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len); |
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| 74 | extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len); |
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| 75 | extern int ptrace_attach(struct task_struct *tsk); |
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| 76 | extern int ptrace_detach(struct task_struct *, unsigned int); |
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| 77 | extern void ptrace_disable(struct task_struct *); |
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| 78 | extern int ptrace_check_attach(struct task_struct *task, int kill); |
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| 79 | extern int ptrace_request(struct task_struct *child, long request, long addr, long data); |
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| 80 | extern void ptrace_notify(int exit_code); |
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| 81 | extern void __ptrace_link(struct task_struct *child, |
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| 82 | struct task_struct *new_parent); |
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| 83 | extern void __ptrace_unlink(struct task_struct *child); |
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| 84 | |||
| 85 | static inline void ptrace_link(struct task_struct *child, |
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| 86 | struct task_struct *new_parent) |
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| 87 | { |
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| 88 | if (unlikely(child->ptrace)) |
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| 89 | __ptrace_link(child, new_parent); |
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| 90 | } |
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| 91 | static inline void ptrace_unlink(struct task_struct *child) |
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| 92 | { |
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| 93 | if (unlikely(child->ptrace)) |
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| 94 | __ptrace_unlink(child); |
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| 95 | } |
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| 96 | |||
| 97 | |||
| 98 | #ifndef force_successful_syscall_return |
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| 99 | /* |
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| 100 | * System call handlers that, upon successful completion, need to return a |
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| 101 | * negative value should call force_successful_syscall_return() right before |
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| 102 | * returning. On architectures where the syscall convention provides for a |
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| 103 | * separate error flag (e.g., alpha, ia64, ppc{,64}, sparc{,64}, possibly |
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| 104 | * others), this macro can be used to ensure that the error flag will not get |
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| 105 | * set. On architectures which do not support a separate error flag, the macro |
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| 106 | * is a no-op and the spurious error condition needs to be filtered out by some |
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| 107 | * other means (e.g., in user-level, by passing an extra argument to the |
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| 108 | * syscall handler, or something along those lines). |
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| 109 | */ |
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| 110 | #define force_successful_syscall_return() do { } while (0) |
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| 111 | #endif |
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| 112 | |||
| 113 | #endif |
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| 114 | |||
| 115 | #endif |