> compile NEMU
ysyx_22040000 李心杨 Linux calcite 6.1.69 #1-NixOS SMP PREEMPT_DYNAMIC Wed Dec 20 16:00:29 UTC 2023 x86_64 GNU/Linux 20:11:42 up 3 days 19:12, 2 users, load average: 0.35, 0.52, 0.56
This commit is contained in:
tracer-ysyx
parent
39e23eeec0
commit
bc41537fe2
1 changed files with 112 additions and 50 deletions
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@ -1,31 +1,60 @@
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/***************************************************************************************
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan PSL v2.
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* You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
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* EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
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* MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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* Copyright (c) 2014-2022 Zihao Yu, Nanjing University
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*
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* NEMU is licensed under Mulan PSL v2.
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* You can use this software according to the terms and conditions of the Mulan
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*PSL v2. You may obtain a copy of Mulan PSL v2 at:
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* http://license.coscl.org.cn/MulanPSL2
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*
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* THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY
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*KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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*NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
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*
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* See the Mulan PSL v2 for more details.
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***************************************************************************************/
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#include <isa.h>
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#include <cpu/cpu.h>
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#include <readline/readline.h>
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#include <readline/history.h>
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#include "sdb.h"
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#include <cpu/cpu.h>
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#include <isa.h>
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#include <readline/history.h>
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#include <readline/readline.h>
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static int is_batch_mode = false;
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// command handlers
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static int cmd_help(char *args);
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static int cmd_c(char *args);
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static int cmd_q(char *args);
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static int cmd_si(char *args);
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static int cmd_info(char *args);
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static int cmd_info_r(char *args);
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static int cmd_info_w(char *args);
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static struct CMDTable {
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const char *name;
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const char *description;
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int (*handler)(char *);
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struct CMDTable* subcommand;
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int nr_subcommand;
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} cmd_info_table[] = {
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{"r", "List all registers and their contents", cmd_info_r, NULL, 0},
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{"w", "Status of specified watchpoints", cmd_info_w, NULL, 0},
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}, cmd_table[] = {
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{"help", "Display information about all supported commands", cmd_help, NULL, 0},
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{"c", "Continue the execution of the program", cmd_c, NULL, 0},
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{"q", "Exit NEMU", cmd_q, NULL, 0},
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{"si", "Execute next [n] program line", cmd_si, NULL, 0},
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{"info", "Print information of registers or watchpoints", cmd_info, cmd_info_table, ARRLEN(cmd_info_table)},
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};
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#define NR_CMD ARRLEN(cmd_table)
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void init_regex();
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void init_wp_pool();
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/* We use the `readline' library to provide more flexibility to read from stdin. */
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static char* rl_gets() {
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/* We use the `readline' library to provide more flexibility to read from stdin.
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*/
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static char *rl_gets() {
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static char *line_read = NULL;
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if (line_read) {
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@ -47,7 +76,6 @@ static int cmd_c(char *args) {
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return 0;
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}
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static int cmd_q(char *args) {
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nemu_state.state = NEMU_QUIT;
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return -1;
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@ -62,12 +90,14 @@ static int cmd_si(char *args) {
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cpu_exec(1);
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} else {
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int base = 10;
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int length = strlen(arg);
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int length = strnlen(arg, 34);
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if (length > 2) {
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if (arg[0] == '0' && (arg[1] == 'b' || arg[1] == 'B')) {
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base = 2; arg = arg + 2;
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base = 2;
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arg = arg + 2;
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} else if (arg[0] == '0' && (arg[1] == 'x' || arg[1] == 'X')) {
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base = 16; arg = arg + 2;
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base = 16;
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arg = arg + 2;
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}
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}
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if (arg[0] == '0')
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@ -78,28 +108,53 @@ static int cmd_si(char *args) {
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return 0;
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} else if (n == 0) {
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printf("Invalid argument for command si: %s\n", args);
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cmd_help(NULL);
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return 0;
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}else {
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} else {
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cpu_exec(n);
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}
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}
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return 0;
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}
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static int cmd_help(char *args);
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static int cmd_info_r(char *args) { return 0; }
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static struct {
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const char *name;
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const char *description;
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int (*handler) (char *);
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} cmd_table [] = {
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{ "help", "Display information about all supported commands", cmd_help },
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{ "c", "Continue the execution of the program", cmd_c },
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{ "q", "Exit NEMU", cmd_q },
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{ "si", "Single step [n] step", cmd_si },
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};
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static int cmd_info_w(char *args) { return 0; }
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#define NR_CMD ARRLEN(cmd_table)
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static int cmd_info(char *args) {
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char *arg = strtok(args, " ");
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int i;
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for (i = 0; i < NR_CMD; i++) {
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if (strcmp(arg, cmd_info_table[i].name) == 0) {
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cmd_info_table[i].handler(args);
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return 0;
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}
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}
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return 0;
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}
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static int cmd_help_print(char *args, struct CMDTable* cur_cmd_table) {
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int i;
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char *arg = strtok(NULL, " ");
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if (arg == NULL) {
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// No more subcommand
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return -1;
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} else {
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// Find sub-command
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for (i = 0; i < cur_cmd_table->nr_subcommand; i++) {
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if (strcmp(arg, cur_cmd_table[i].name) == 0) {
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printf("%s ", cur_cmd_table[i].name);
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if (cmd_help_print(args, cur_cmd_table->subcommand) == -1) {
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// Last avaliable command
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printf("-- %s", cur_cmd_table[i].description);
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}
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return 0;
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}
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}
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return -1;
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}
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}
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static int cmd_help(char *args) {
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/* extract the first argument */
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@ -108,14 +163,17 @@ static int cmd_help(char *args) {
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if (arg == NULL) {
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/* no argument given */
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for (i = 0; i < NR_CMD; i ++) {
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for (i = 0; i < NR_CMD; i++) {
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printf("%s - %s\n", cmd_table[i].name, cmd_table[i].description);
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}
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}
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else {
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for (i = 0; i < NR_CMD; i ++) {
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} else {
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for (i = 0; i < NR_CMD; i++) {
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if (strcmp(arg, cmd_table[i].name) == 0) {
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printf("%s - %s\n", cmd_table[i].name, cmd_table[i].description);
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printf("%s ", cmd_table[i].name);
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if (cmd_help_print(args, cmd_table[i].subcommand) == -1) {
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// Last avaliable command
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printf("-- %s", cmd_table[i].description);
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}
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return 0;
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}
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}
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@ -124,9 +182,7 @@ static int cmd_help(char *args) {
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return 0;
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}
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void sdb_set_batch_mode() {
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is_batch_mode = true;
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}
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void sdb_set_batch_mode() { is_batch_mode = true; }
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void sdb_mainloop() {
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if (is_batch_mode) {
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@ -134,12 +190,14 @@ void sdb_mainloop() {
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return;
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}
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for (char *str; (str = rl_gets()) != NULL; ) {
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for (char *str; (str = rl_gets()) != NULL;) {
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char *str_end = str + strlen(str);
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/* extract the first token as the command */
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char *cmd = strtok(str, " ");
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if (cmd == NULL) { continue; }
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if (cmd == NULL) {
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continue;
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}
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/* treat the remaining string as the arguments,
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* which may need further parsing
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@ -155,14 +213,18 @@ void sdb_mainloop() {
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#endif
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int i;
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for (i = 0; i < NR_CMD; i ++) {
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for (i = 0; i < NR_CMD; i++) {
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if (strcmp(cmd, cmd_table[i].name) == 0) {
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if (cmd_table[i].handler(args) < 0) { return; }
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if (cmd_table[i].handler(args) < 0) {
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return;
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}
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break;
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}
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}
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if (i == NR_CMD) { printf("Unknown command '%s'\n", cmd); }
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if (i == NR_CMD) {
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printf("Unknown command '%s'\n", cmd);
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}
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}
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}
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