| 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 |