1/*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2020 The FreeBSD Foundation 5 * 6 * This software was developed by Mitchell Horne under sponsorship from 7 * the FreeBSD Foundation. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31#ifndef _MACHINE_GDB_MACHDEP_H_ 32#define _MACHINE_GDB_MACHDEP_H_ 33 34#define GDB_BUFSZ 4096 35#define GDB_NREGS 68 36#define GDB_REG_X0 0 37#define GDB_REG_X29 29 38#define GDB_REG_LR 30 39#define GDB_REG_SP 31 40#define GDB_REG_PC 32 41#define GDB_REG_CSPR 33 42#define GDB_REG_V0 34 43#define GDB_REG_V31 65 44#define GDB_REG_FPSR 66 45#define GDB_REG_FPCR 67 46_Static_assert(GDB_BUFSZ >= (GDB_NREGS * 16), "buffer fits 'g' regs"); 47 48static __inline size_t 49gdb_cpu_regsz(int regnum) 50{ 51 if (regnum == GDB_REG_CSPR || regnum == GDB_REG_FPSR || 52 regnum == GDB_REG_FPCR) 53 return (4); 54 else if (regnum >= GDB_REG_V0 && regnum <= GDB_REG_V31) 55 return (16); 56 57 return (8); 58} 59 60static __inline int 61gdb_cpu_query(void) 62{ 63 return (0); 64} 65 66static __inline void * 67gdb_begin_write(void) 68{ 69 return (NULL); 70} 71 72static __inline void 73gdb_end_write(void *arg __unused) 74{ 75} 76 77void *gdb_cpu_getreg(int, size_t *); 78void gdb_cpu_setreg(int, void *); 79int gdb_cpu_signal(int, int); 80void gdb_cpu_stop_reason(int, int); 81 82#endif /* !_MACHINE_GDB_MACHDEP_H_ */ 83