18d7e7a98SRuslan Bukin /*- 2d52d6d7cSRuslan Bukin * Copyright (c) 2015-2016 Ruslan Bukin <br@bsdpad.com> 38d7e7a98SRuslan Bukin * All rights reserved. 48d7e7a98SRuslan Bukin * 58d7e7a98SRuslan Bukin * Portions of this software were developed by SRI International and the 68d7e7a98SRuslan Bukin * University of Cambridge Computer Laboratory under DARPA/AFRL contract 78d7e7a98SRuslan Bukin * FA8750-10-C-0237 ("CTSRD"), as part of the DARPA CRASH research programme. 88d7e7a98SRuslan Bukin * 98d7e7a98SRuslan Bukin * Portions of this software were developed by the University of Cambridge 108d7e7a98SRuslan Bukin * Computer Laboratory as part of the CTSRD Project, with support from the 118d7e7a98SRuslan Bukin * UK Higher Education Innovation Fund (HEIF). 128d7e7a98SRuslan Bukin * 138d7e7a98SRuslan Bukin * Redistribution and use in source and binary forms, with or without 148d7e7a98SRuslan Bukin * modification, are permitted provided that the following conditions 158d7e7a98SRuslan Bukin * are met: 168d7e7a98SRuslan Bukin * 1. Redistributions of source code must retain the above copyright 178d7e7a98SRuslan Bukin * notice, this list of conditions and the following disclaimer. 188d7e7a98SRuslan Bukin * 2. Redistributions in binary form must reproduce the above copyright 198d7e7a98SRuslan Bukin * notice, this list of conditions and the following disclaimer in the 208d7e7a98SRuslan Bukin * documentation and/or other materials provided with the distribution. 218d7e7a98SRuslan Bukin * 228d7e7a98SRuslan Bukin * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 238d7e7a98SRuslan Bukin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 248d7e7a98SRuslan Bukin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 258d7e7a98SRuslan Bukin * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 268d7e7a98SRuslan Bukin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 278d7e7a98SRuslan Bukin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 288d7e7a98SRuslan Bukin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 298d7e7a98SRuslan Bukin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 308d7e7a98SRuslan Bukin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 318d7e7a98SRuslan Bukin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 328d7e7a98SRuslan Bukin * SUCH DAMAGE. 338d7e7a98SRuslan Bukin */ 348d7e7a98SRuslan Bukin 358d7e7a98SRuslan Bukin #ifndef _MACHINE_DB_MACHDEP_H_ 368d7e7a98SRuslan Bukin #define _MACHINE_DB_MACHDEP_H_ 378d7e7a98SRuslan Bukin 388d7e7a98SRuslan Bukin #include <machine/riscvreg.h> 398d7e7a98SRuslan Bukin #include <machine/frame.h> 408d7e7a98SRuslan Bukin #include <machine/trap.h> 418d7e7a98SRuslan Bukin 42cb8e0678SMitchell Horne #define T_BREAKPOINT (SCAUSE_BREAKPOINT) 43d52d6d7cSRuslan Bukin #define T_WATCHPOINT (0) 44d52d6d7cSRuslan Bukin 458d7e7a98SRuslan Bukin typedef vm_offset_t db_addr_t; 468d7e7a98SRuslan Bukin typedef long db_expr_t; 478d7e7a98SRuslan Bukin 4803178616SJohn Baldwin #define PC_REGS() ((db_addr_t)kdb_frame->tf_sepc) 49d52d6d7cSRuslan Bukin 50d52d6d7cSRuslan Bukin #define BKPT_INST (0x00100073) 51d52d6d7cSRuslan Bukin #define BKPT_SIZE (INSN_SIZE) 52d52d6d7cSRuslan Bukin #define BKPT_SET(inst) (BKPT_INST) 53d52d6d7cSRuslan Bukin 54d52d6d7cSRuslan Bukin #define BKPT_SKIP do { \ 5537bd6bb8SJohn Baldwin uint32_t _instr; \ 5637bd6bb8SJohn Baldwin \ 5737bd6bb8SJohn Baldwin _instr = db_get_value(PC_REGS(), sizeof(uint32_t), FALSE); \ 5837bd6bb8SJohn Baldwin if ((_instr & 0x3) == 0x3) \ 5937bd6bb8SJohn Baldwin kdb_frame->tf_sepc += 4; /* ebreak */ \ 6037bd6bb8SJohn Baldwin else \ 6137bd6bb8SJohn Baldwin kdb_frame->tf_sepc += 2; /* c.ebreak */ \ 62d52d6d7cSRuslan Bukin } while (0) 63d52d6d7cSRuslan Bukin 64d52d6d7cSRuslan Bukin #define db_clear_single_step kdb_cpu_clear_singlestep 65d52d6d7cSRuslan Bukin #define db_set_single_step kdb_cpu_set_singlestep 66d52d6d7cSRuslan Bukin 67d52d6d7cSRuslan Bukin #define IS_BREAKPOINT_TRAP(type, code) (type == T_BREAKPOINT) 68d52d6d7cSRuslan Bukin #define IS_WATCHPOINT_TRAP(type, code) (type == T_WATCHPOINT) 69d52d6d7cSRuslan Bukin 70d52d6d7cSRuslan Bukin #define inst_trap_return(ins) (ins == 0x10000073) /* eret */ 71d52d6d7cSRuslan Bukin #define inst_return(ins) (ins == 0x00008067) /* ret */ 72d52d6d7cSRuslan Bukin #define inst_call(ins) (((ins) & 0x7f) == 111 || \ 73d52d6d7cSRuslan Bukin ((ins) & 0x7f) == 103) /* jal, jalr */ 74d52d6d7cSRuslan Bukin 75d52d6d7cSRuslan Bukin #define inst_load(ins) ({ \ 76d52d6d7cSRuslan Bukin uint32_t tmp_instr = db_get_value(PC_REGS(), sizeof(uint32_t), FALSE); \ 77d52d6d7cSRuslan Bukin is_load_instr(tmp_instr); \ 78d52d6d7cSRuslan Bukin }) 79d52d6d7cSRuslan Bukin 80d52d6d7cSRuslan Bukin #define inst_store(ins) ({ \ 81d52d6d7cSRuslan Bukin uint32_t tmp_instr = db_get_value(PC_REGS(), sizeof(uint32_t), FALSE); \ 82d52d6d7cSRuslan Bukin is_store_instr(tmp_instr); \ 83d52d6d7cSRuslan Bukin }) 84d52d6d7cSRuslan Bukin 85d52d6d7cSRuslan Bukin #define is_load_instr(ins) (((ins) & 0x7f) == 3) 86d52d6d7cSRuslan Bukin #define is_store_instr(ins) (((ins) & 0x7f) == 35) 87d52d6d7cSRuslan Bukin 88d52d6d7cSRuslan Bukin #define next_instr_address(pc, bd) ((bd) ? (pc) : ((pc) + 4)) 89d52d6d7cSRuslan Bukin 90d52d6d7cSRuslan Bukin #define DB_ELFSIZE 64 91d52d6d7cSRuslan Bukin 928d7e7a98SRuslan Bukin #endif /* !_MACHINE_DB_MACHDEP_H_ */ 93