projects / mirror_ubuntu-bionic-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1da177e4 LT |
1 | #ifndef _LINUX_PTRACE_H |
| 2 | #define _LINUX_PTRACE_H | |
| 3 | /* ptrace.h */ | |
| 4 | /* structs and defines to help the user use the ptrace system call. */ | |
| 5 | ||
| 6 | /* has the defines to get at the registers. */ | |
| 7 | ||
| 8 | #define PTRACE_TRACEME 0 | |
| 9 | #define PTRACE_PEEKTEXT 1 | |
| 10 | #define PTRACE_PEEKDATA 2 | |
| 11 | #define PTRACE_PEEKUSR 3 | |
| 12 | #define PTRACE_POKETEXT 4 | |
| 13 | #define PTRACE_POKEDATA 5 | |
| 14 | #define PTRACE_POKEUSR 6 | |
| 15 | #define PTRACE_CONT 7 | |
| 16 | #define PTRACE_KILL 8 | |
| 17 | #define PTRACE_SINGLESTEP 9 | |
| 18 | ||
| 19 | #define PTRACE_ATTACH 0x10 | |
| 20 | #define PTRACE_DETACH 0x11 | |
| 21 | ||
| 22 | #define PTRACE_SYSCALL 24 | |
| ed75e8d5 | 23 | #define PTRACE_SYSEMU 31 |
| 1da177e4 LT |
24 | |
| 25 | /* 0x4200-0x4300 are reserved for architecture-independent additions. */ | |
| 26 | #define PTRACE_SETOPTIONS 0x4200 | |
| 27 | #define PTRACE_GETEVENTMSG 0x4201 | |
| 28 | #define PTRACE_GETSIGINFO 0x4202 | |
| 29 | #define PTRACE_SETSIGINFO 0x4203 | |
| 30 | ||
| 31 | /* options set using PTRACE_SETOPTIONS */ | |
| 32 | #define PTRACE_O_TRACESYSGOOD 0x00000001 | |
| 33 | #define PTRACE_O_TRACEFORK 0x00000002 | |
| 34 | #define PTRACE_O_TRACEVFORK 0x00000004 | |
| 35 | #define PTRACE_O_TRACECLONE 0x00000008 | |
| 36 | #define PTRACE_O_TRACEEXEC 0x00000010 | |
| 37 | #define PTRACE_O_TRACEVFORKDONE 0x00000020 | |
| 38 | #define PTRACE_O_TRACEEXIT 0x00000040 | |
| 39 | ||
| 40 | #define PTRACE_O_MASK 0x0000007f | |
| 41 | ||
| 42 | /* Wait extended result codes for the above trace options. */ | |
| 43 | #define PTRACE_EVENT_FORK 1 | |
| 44 | #define PTRACE_EVENT_VFORK 2 | |
| 45 | #define PTRACE_EVENT_CLONE 3 | |
| 46 | #define PTRACE_EVENT_EXEC 4 | |
| 47 | #define PTRACE_EVENT_VFORK_DONE 5 | |
| 48 | #define PTRACE_EVENT_EXIT 6 | |
| 49 | ||
| 50 | #include <asm/ptrace.h> | |
| 51 | ||
| 52 | #ifdef __KERNEL__ | |
| 53 | /* | |
| 54 | * Ptrace flags | |
| 55 | */ | |
| 56 | ||
| 57 | #define PT_PTRACED 0x00000001 | |
| 58 | #define PT_DTRACE 0x00000002 /* delayed trace (used on m68k, i386) */ | |
| 59 | #define PT_TRACESYSGOOD 0x00000004 | |
| 60 | #define PT_PTRACE_CAP 0x00000008 /* ptracer can follow suid-exec */ | |
| 61 | #define PT_TRACE_FORK 0x00000010 | |
| 62 | #define PT_TRACE_VFORK 0x00000020 | |
| 63 | #define PT_TRACE_CLONE 0x00000040 | |
| 64 | #define PT_TRACE_EXEC 0x00000080 | |
| 65 | #define PT_TRACE_VFORK_DONE 0x00000100 | |
| 66 | #define PT_TRACE_EXIT 0x00000200 | |
| 67 | #define PT_ATTACHED 0x00000400 /* parent != real_parent */ | |
| 68 | ||
| 69 | #define PT_TRACE_MASK 0x000003f4 | |
| 70 | ||
| 71 | /* single stepping state bits (used on ARM and PA-RISC) */ | |
| 72 | #define PT_SINGLESTEP_BIT 31 | |
| 73 | #define PT_SINGLESTEP (1<<PT_SINGLESTEP_BIT) | |
| 74 | #define PT_BLOCKSTEP_BIT 30 | |
| 75 | #define PT_BLOCKSTEP (1<<PT_BLOCKSTEP_BIT) | |
| 76 | ||
| 77 | #include <linux/compiler.h> /* For unlikely. */ | |
| 78 | #include <linux/sched.h> /* For struct task_struct. */ | |
| 79 | ||
| 80 | extern int ptrace_readdata(struct task_struct *tsk, unsigned long src, char __user *dst, int len); | |
| 81 | extern int ptrace_writedata(struct task_struct *tsk, char __user *src, unsigned long dst, int len); | |
| 82 | extern int ptrace_attach(struct task_struct *tsk); | |
| 83 | extern int ptrace_detach(struct task_struct *, unsigned int); | |
| 84 | extern void ptrace_disable(struct task_struct *); | |
| 85 | extern int ptrace_check_attach(struct task_struct *task, int kill); | |
| 86 | extern int ptrace_request(struct task_struct *child, long request, long addr, long data); | |
| 87 | extern void ptrace_notify(int exit_code); | |
| 88 | extern void __ptrace_link(struct task_struct *child, | |
| 89 | struct task_struct *new_parent); | |
| 90 | extern void __ptrace_unlink(struct task_struct *child); | |
| 91 | extern void ptrace_untrace(struct task_struct *child); | |
| 92 | ||
| 93 | static inline void ptrace_link(struct task_struct *child, | |
| 94 | struct task_struct *new_parent) | |
| 95 | { | |
| 96 | if (unlikely(child->ptrace)) | |
| 97 | __ptrace_link(child, new_parent); | |
| 98 | } | |
| 99 | static inline void ptrace_unlink(struct task_struct *child) | |
| 100 | { | |
| 101 | if (unlikely(child->ptrace)) | |
| 102 | __ptrace_unlink(child); | |
| 103 | } | |
| 104 | ||
| 105 | ||
| 106 | #ifndef force_successful_syscall_return | |
| 107 | /* | |
| 108 | * System call handlers that, upon successful completion, need to return a | |
| 109 | * negative value should call force_successful_syscall_return() right before | |
| 110 | * returning. On architectures where the syscall convention provides for a | |
| 111 | * separate error flag (e.g., alpha, ia64, ppc{,64}, sparc{,64}, possibly | |
| 112 | * others), this macro can be used to ensure that the error flag will not get | |
| 113 | * set. On architectures which do not support a separate error flag, the macro | |
| 114 | * is a no-op and the spurious error condition needs to be filtered out by some | |
| 115 | * other means (e.g., in user-level, by passing an extra argument to the | |
| 116 | * syscall handler, or something along those lines). | |
| 117 | */ | |
| 118 | #define force_successful_syscall_return() do { } while (0) | |
| 119 | #endif | |
| 120 | ||
| 121 | #endif | |
| 122 | ||
| 123 | #endif |