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29 * @(#)ptrace.h 8.2 (Berkeley) 1/4/94
33 #ifndef _SYS_PTRACE_H_
34 #define _SYS_PTRACE_H_
36 #include <sys/signal.h>
37 #include <sys/param.h>
38 #include <machine/reg.h>
40 #define PT_TRACE_ME 0 /* child declares it's being traced */
41 #define PT_READ_I 1 /* read word in child's I space */
42 #define PT_READ_D 2 /* read word in child's D space */
43 /* was PT_READ_U 3 * read word in child's user structure */
44 #define PT_WRITE_I 4 /* write word in child's I space */
45 #define PT_WRITE_D 5 /* write word in child's D space */
46 /* was PT_WRITE_U 6 * write word in child's user structure */
47 #define PT_CONTINUE 7 /* continue the child */
48 #define PT_KILL 8 /* kill the child process */
49 #define PT_STEP 9 /* single step the child */
51 #define PT_ATTACH 10 /* trace some running process */
52 #define PT_DETACH 11 /* stop tracing a process */
53 #define PT_IO 12 /* do I/O to/from stopped process. */
54 #define PT_LWPINFO 13 /* Info about the LWP that stopped. */
55 #define PT_GETNUMLWPS 14 /* get total number of threads */
56 #define PT_GETLWPLIST 15 /* get thread list */
57 #define PT_CLEARSTEP 16 /* turn off single step */
58 #define PT_SETSTEP 17 /* turn on single step */
59 #define PT_SUSPEND 18 /* suspend a thread */
60 #define PT_RESUME 19 /* resume a thread */
66 #define PT_FOLLOW_FORK 23
68 #define PT_GETREGS 33 /* get general-purpose registers */
69 #define PT_SETREGS 34 /* set general-purpose registers */
70 #define PT_GETFPREGS 35 /* get floating-point registers */
71 #define PT_SETFPREGS 36 /* set floating-point registers */
72 #define PT_GETDBREGS 37 /* get debugging registers */
73 #define PT_SETDBREGS 38 /* set debugging registers */
75 #define PT_VM_TIMESTAMP 40 /* Get VM version (timestamp) */
76 #define PT_VM_ENTRY 41 /* Get VM map (entry) */
78 #define PT_FIRSTMACH 64 /* for machine-specific requests */
79 #include <machine/ptrace.h> /* machine-specific requests, if any */
81 struct ptrace_io_desc {
82 int piod_op; /* I/O operation */
83 void *piod_offs; /* child offset */
84 void *piod_addr; /* parent offset */
85 size_t piod_len; /* request length */
89 * Operations in piod_op.
91 #define PIOD_READ_D 1 /* Read from D space */
92 #define PIOD_WRITE_D 2 /* Write to D space */
93 #define PIOD_READ_I 3 /* Read from I space */
94 #define PIOD_WRITE_I 4 /* Write to I space */
96 /* Argument structure for PT_LWPINFO. */
97 struct ptrace_lwpinfo {
98 lwpid_t pl_lwpid; /* LWP described. */
99 int pl_event; /* Event that stopped the LWP. */
100 #define PL_EVENT_NONE 0
101 #define PL_EVENT_SIGNAL 1
102 int pl_flags; /* LWP flags. */
103 #define PL_FLAG_SA 0x01 /* M:N thread */
104 #define PL_FLAG_BOUND 0x02 /* M:N bound thread */
105 #define PL_FLAG_SCE 0x04 /* syscall enter point */
106 #define PL_FLAG_SCX 0x08 /* syscall leave point */
107 #define PL_FLAG_EXEC 0x10 /* exec(2) succeeded */
108 #define PL_FLAG_SI 0x20 /* siginfo is valid */
109 #define PL_FLAG_FORKED 0x40 /* new child */
110 #define PL_FLAG_CHILD 0x80 /* I am from child */
111 sigset_t pl_sigmask; /* LWP signal mask */
112 sigset_t pl_siglist; /* LWP pending signal */
113 struct __siginfo pl_siginfo; /* siginfo for signal */
114 char pl_tdname[MAXCOMLEN + 1]; /* LWP name */
115 int pl_child_pid; /* New child pid */
118 /* Argument structure for PT_VM_ENTRY. */
119 struct ptrace_vm_entry {
120 int pve_entry; /* Entry number used for iteration. */
121 int pve_timestamp; /* Generation number of VM map. */
122 u_long pve_start; /* Start VA of range. */
123 u_long pve_end; /* End VA of range (incl). */
124 u_long pve_offset; /* Offset in backing object. */
125 u_int pve_prot; /* Protection of memory range. */
126 u_int pve_pathlen; /* Size of path. */
127 long pve_fileid; /* File ID. */
128 uint32_t pve_fsid; /* File system ID. */
129 char *pve_path; /* Path name of object. */
135 * The flags below are used for ptrace(2) tracing and have no relation
136 * to procfs. They are stored in struct proc's p_stops member.
138 #define S_PT_SCE 0x000010000
139 #define S_PT_SCX 0x000020000
141 int ptrace_set_pc(struct thread *_td, unsigned long _addr);
142 int ptrace_single_step(struct thread *_td);
143 int ptrace_clear_single_step(struct thread *_td);
145 #ifdef __HAVE_PTRACE_MACHDEP
146 int cpu_ptrace(struct thread *_td, int _req, void *_addr, int _data);
150 * These are prototypes for functions that implement some of the
151 * debugging functionality exported by procfs / linprocfs and by the
152 * ptrace(2) syscall. They used to be part of procfs, but they don't
153 * really belong there.
159 int proc_read_regs(struct thread *_td, struct reg *_reg);
160 int proc_write_regs(struct thread *_td, struct reg *_reg);
161 int proc_read_fpregs(struct thread *_td, struct fpreg *_fpreg);
162 int proc_write_fpregs(struct thread *_td, struct fpreg *_fpreg);
163 int proc_read_dbregs(struct thread *_td, struct dbreg *_dbreg);
164 int proc_write_dbregs(struct thread *_td, struct dbreg *_dbreg);
165 int proc_sstep(struct thread *_td);
166 int proc_rwmem(struct proc *_p, struct uio *_uio);
167 #ifdef COMPAT_FREEBSD32
171 int proc_read_regs32(struct thread *_td, struct reg32 *_reg32);
172 int proc_write_regs32(struct thread *_td, struct reg32 *_reg32);
173 int proc_read_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32);
174 int proc_write_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32);
175 int proc_read_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
176 int proc_write_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
180 #include <sys/cdefs.h>
183 int ptrace(int _request, pid_t _pid, caddr_t _addr, int _data);
186 #endif /* !_KERNEL */
188 #endif /* !_SYS_PTRACE_H_ */