xref: /netbsd-src/sys/arch/alpha/include/ptrace.h (revision 4f79a484704c25ba5c21ab92911b2c71cf56a9dd)
1 /* $NetBSD: ptrace.h,v 1.11 2019/12/24 14:50:59 kamil Exp $ */
2 
3 /*
4  * Copyright (c) 1994 Christopher G. Demetriou
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by Christopher G. Demetriou.
18  * 4. The name of the author may not be used to endorse or promote products
19  *    derived from this software without specific prior written permission
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
22  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
23  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
24  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
25  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
26  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
27  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
28  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
29  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
30  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
31  */
32 
33 /*
34  * Alpha-dependent ptrace definitions.
35  * Note that PT_STEP is _not_ supported.
36  */
37 #define PT_GETREGS      (PT_FIRSTMACH + 0)
38 #define PT_SETREGS      (PT_FIRSTMACH + 1)
39 #define PT_GETFPREGS    (PT_FIRSTMACH + 2)
40 #define PT_SETFPREGS    (PT_FIRSTMACH + 3)
41 
42 #define PT_MACHDEP_STRINGS \
43 	"PT_GETREGS", \
44 	"PT_SETREGS", \
45 	"PT_GETFPREGS", \
46 	"PT_SETFPREGS",
47 
48 #include <machine/reg.h>
49 
50 #define PTRACE_REG_PC(r)	(r)->r_regs[R_ZERO]
51 #define PTRACE_REG_FP(r)	(r)->r_regs[R_S6]
52 #define PTRACE_REG_SET_PC(r, v)	(r)->r_regs[R_ZERO] = (v)
53 #define PTRACE_REG_SP(r)	(r)->r_regs[R_SP]
54 #define PTRACE_REG_INTRV(r)	(r)->r_regs[R_V0]
55 
56 #define PTRACE_BREAKPOINT	((const uint8_t[]) { 0x80, 0x00, 0x00, 0x00 })
57 #define PTRACE_BREAKPOINT_ASM	__asm __volatile("bpt" ::: "memory")
58 #define PTRACE_BREAKPOINT_SIZE	4
59 
60 #ifdef _KERNEL
61 #define PTRACE_LWP_GETPRIVATE(l) ((struct pcb *)lwp_getpcb(l))->pcb_hw.apcb_unique
62 #endif
63