1 /* $NetBSD: ptrace.h,v 1.17 2020/12/14 01:58:48 rin Exp $ */ 2 3 /* 4 * Copyright (c) 1995 Frank Lancaster 5 * Copyright (c) 1995 Tools GmbH 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by TooLs GmbH. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission 21 * 22 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR 23 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 31 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #include <arm/cdefs.h> 35 36 /* 37 * arm-dependent ptrace definitions 38 */ 39 #if 0 40 /* Exposed to userland for NetBSD 1.6 to 9. Do not reuse for other purpose. */ 41 #define PT_STEP (PT_FIRSTMACH + 0) /* Not implemented */ 42 #endif 43 #define PT_GETREGS (PT_FIRSTMACH + 1) 44 #define PT_SETREGS (PT_FIRSTMACH + 2) 45 /* 3 and 4 are for FPE registers */ 46 #define PT_GETFPREGS (PT_FIRSTMACH + 5) 47 #define PT_SETFPREGS (PT_FIRSTMACH + 6) 48 #if 0 49 /* Exposed to userland for NetBSD 8 to 9. Do not reuse for other purpose. */ 50 #define PT_SETSTEP (PT_FIRSTMACH + 7) /* Not implemented */ 51 #define PT_CLEARSTEP (PT_FIRSTMACH + 8) /* Not implemented */ 52 #endif 53 54 #define PT_MACHDEP_STRINGS \ 55 "n/a PT_STEP", \ 56 "PT_GETREGS", \ 57 "PT_SETREGS", \ 58 "old PT_GETFPREGS", \ 59 "old PT_SETFPREGS", \ 60 "PT_GETFPREGS", \ 61 "PT_SETFPREGS", \ 62 "n/a PT_SETSTEP", \ 63 "n/a PT_CLEARSTEP", 64 65 #include <machine/reg.h> 66 #define PTRACE_REG_PC(_r) (_r)->r_pc 67 #define PTRACE_REG_FP(_r) (_r)->r[11] 68 #define PTRACE_REG_SET_PC(_r, _v) (_r)->r_pc = (_v) 69 #define PTRACE_REG_SP(_r) (_r)->r_sp 70 #define PTRACE_REG_INTRV(_r) (_r)->r[0] 71 72 #define PTRACE_ILLEGAL_ASM __asm __volatile ("udf #0" : : : "memory") 73 74 #if defined(__ARMEL__) || defined(_ARM_ARCH_BE8) 75 #define PTRACE_BREAKPOINT ((const uint8_t[]) { 0xfe, 0xde, 0xff, 0xe7 }) 76 #else 77 #define PTRACE_BREAKPOINT ((const uint8_t[]) { 0xe7, 0xff, 0xde, 0xfe }) 78 #endif 79 80 #ifdef _ARM_ARCH_BE8 81 #define PTRACE_BREAKPOINT_INSN 0xfedeffe7 82 #else 83 #define PTRACE_BREAKPOINT_INSN 0xe7ffdefe 84 #endif 85 86 #define PTRACE_BREAKPOINT_ASM __asm __volatile (".word " ___STRING(PTRACE_BREAKPOINT_INSN) ) 87 #define PTRACE_BREAKPOINT_SIZE 4 88