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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/_sigset.h>
37 #include <machine/reg.h>
39 #define PT_TRACE_ME 0 /* child declares it's being traced */
40 #define PT_READ_I 1 /* read word in child's I space */
41 #define PT_READ_D 2 /* read word in child's D space */
42 /* was PT_READ_U 3 * read word in child's user structure */
43 #define PT_WRITE_I 4 /* write word in child's I space */
44 #define PT_WRITE_D 5 /* write word in child's D space */
45 /* was PT_WRITE_U 6 * write word in child's user structure */
46 #define PT_CONTINUE 7 /* continue the child */
47 #define PT_KILL 8 /* kill the child process */
48 #define PT_STEP 9 /* single step the child */
50 #define PT_ATTACH 10 /* trace some running process */
51 #define PT_DETACH 11 /* stop tracing a process */
52 #define PT_IO 12 /* do I/O to/from stopped process. */
53 #define PT_LWPINFO 13 /* Info about the LWP that stopped. */
54 #define PT_GETNUMLWPS 14 /* get total number of threads */
55 #define PT_GETLWPLIST 15 /* get thread list */
56 #define PT_CLEARSTEP 16 /* turn off single step */
57 #define PT_SETSTEP 17 /* turn on single step */
58 #define PT_SUSPEND 18 /* suspend a thread */
59 #define PT_RESUME 19 /* resume a thread */
65 #define PT_GETREGS 33 /* get general-purpose registers */
66 #define PT_SETREGS 34 /* set general-purpose registers */
67 #define PT_GETFPREGS 35 /* get floating-point registers */
68 #define PT_SETFPREGS 36 /* set floating-point registers */
69 #define PT_GETDBREGS 37 /* get debugging registers */
70 #define PT_SETDBREGS 38 /* set debugging registers */
72 #define PT_VM_TIMESTAMP 40 /* Get VM version (timestamp) */
73 #define PT_VM_ENTRY 41 /* Get VM map (entry) */
75 #define PT_FIRSTMACH 64 /* for machine-specific requests */
76 #include <machine/ptrace.h> /* machine-specific requests, if any */
78 struct ptrace_io_desc {
79 int piod_op; /* I/O operation */
80 void *piod_offs; /* child offset */
81 void *piod_addr; /* parent offset */
82 size_t piod_len; /* request length */
86 * Operations in piod_op.
88 #define PIOD_READ_D 1 /* Read from D space */
89 #define PIOD_WRITE_D 2 /* Write to D space */
90 #define PIOD_READ_I 3 /* Read from I space */
91 #define PIOD_WRITE_I 4 /* Write to I space */
93 /* Argument structure for PT_LWPINFO. */
94 struct ptrace_lwpinfo {
95 lwpid_t pl_lwpid; /* LWP described. */
96 int pl_event; /* Event that stopped the LWP. */
97 #define PL_EVENT_NONE 0
98 #define PL_EVENT_SIGNAL 1
99 int pl_flags; /* LWP flags. */
100 #define PL_FLAG_SA 0x01 /* M:N thread */
101 #define PL_FLAG_BOUND 0x02 /* M:N bound thread */
102 sigset_t pl_sigmask; /* LWP signal mask */
103 sigset_t pl_siglist; /* LWP pending signal */
106 /* Argument structure for PT_VM_ENTRY. */
107 struct ptrace_vm_entry {
108 int pve_entry; /* Entry number used for iteration. */
109 int pve_timestamp; /* Generation number of VM map. */
110 u_long pve_start; /* Start VA of range. */
111 u_long pve_end; /* End VA of range (incl). */
112 u_long pve_offset; /* Offset in backing object. */
113 u_int pve_prot; /* Protection of memory range. */
114 u_int pve_pathlen; /* Size of path. */
115 long pve_fileid; /* File ID. */
116 uint32_t pve_fsid; /* File system ID. */
117 char *pve_path; /* Path name of object. */
122 #define PTRACESTOP_SC(p, td, flag) \
123 if ((p)->p_flag & P_TRACED && (p)->p_stops & (flag)) { \
125 ptracestop((td), SIGTRAP); \
129 * The flags below are used for ptrace(2) tracing and have no relation
130 * to procfs. They are stored in struct proc's p_stops member.
132 #define S_PT_SCE 0x000010000
133 #define S_PT_SCX 0x000020000
135 int ptrace_set_pc(struct thread *_td, unsigned long _addr);
136 int ptrace_single_step(struct thread *_td);
137 int ptrace_clear_single_step(struct thread *_td);
139 #ifdef __HAVE_PTRACE_MACHDEP
140 int cpu_ptrace(struct thread *_td, int _req, void *_addr, int _data);
144 * These are prototypes for functions that implement some of the
145 * debugging functionality exported by procfs / linprocfs and by the
146 * ptrace(2) syscall. They used to be part of procfs, but they don't
147 * really belong there.
153 int proc_read_regs(struct thread *_td, struct reg *_reg);
154 int proc_write_regs(struct thread *_td, struct reg *_reg);
155 int proc_read_fpregs(struct thread *_td, struct fpreg *_fpreg);
156 int proc_write_fpregs(struct thread *_td, struct fpreg *_fpreg);
157 int proc_read_dbregs(struct thread *_td, struct dbreg *_dbreg);
158 int proc_write_dbregs(struct thread *_td, struct dbreg *_dbreg);
159 int proc_sstep(struct thread *_td);
160 int proc_rwmem(struct proc *_p, struct uio *_uio);
161 #ifdef COMPAT_FREEBSD32
165 int proc_read_regs32(struct thread *_td, struct reg32 *_reg32);
166 int proc_write_regs32(struct thread *_td, struct reg32 *_reg32);
167 int proc_read_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32);
168 int proc_write_fpregs32(struct thread *_td, struct fpreg32 *_fpreg32);
169 int proc_read_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
170 int proc_write_dbregs32(struct thread *_td, struct dbreg32 *_dbreg32);
174 #include <sys/cdefs.h>
177 int ptrace(int _request, pid_t _pid, caddr_t _addr, int _data);
180 #endif /* !_KERNEL */
182 #endif /* !_SYS_PTRACE_H_ */