void run_debugger(void) {
int i;
show_mainui();
ui_refresh();
ice.regs->flags &= ~TF_MASK;
if(ice.regs->int_no != 1)
output_print("Break due to INT 0x%lX", ice.regs->int_no);
fn_show_stack = fn_kallsyms_lookup_name("show_stack");
if(fn_show_stack){
//fn_show_stack(current, ice.regs->sp);
}else{
printk(KERN_ALERT "not found show stack\n");
}
while(1) {
if(exec_command(get_command())) {
clear_command();
break;
}
clear_command();
//for (i = 0; i < 100000000; i++);
//break;
}
unhook_idt(0xef);
ice.running_state = NOT_RUNNING;
}
int main(){ //主函数
char command[100];
char *args[1000];
int size, i;
char value[1050];
char shellname[1050];
//初始化，增加环境变量
getcwd(first, 999); //获取当前目录
strcpy(value, "shell=");
strcpy(shellname, first);
strcat(shellname, "/myshell");
strcat(value, shellname);
putenv(value);
while(true){
type_prompt(); //输出命令提示符
//读取指令
size = read_command(command, args, stdin);
//分词并调用指令
backstage(command, args, size);
//释放内存
clear_command(args, size);
}
}
int myshell(char *args[], int size){
FILE *fp;
char command[100];
char *argv[1000];
char s[1000];
if(size == 0){//必须有一个参数
printf("myshell：没有参数\n");
return false;
}
fp = fopen(args[0], "r");
if(fp == NULL){
printf("打开文件失败\n");
return false;
}
while(!feof(fp)){
//逐行读取指令
size = read_command(command, argv, fp);
//判断是否已经读取到文件末尾
if(size == -1) break;
//调用指令
backstage(command, argv, size);
//释放内存
clear_command(argv, size);
}
fclose(fp);
return 1;
}
/// cleans up game memory and SDL at exit
void cleanup()
{
extern void clear_command();
extern void clear_console();
extern void clear_mdls();
extern void clear_sound();
recorder::stop();
cleanupserver();
/// "Use this function to set a window's input grab mode."
/// https://wiki.libsdl.org/SDL_SetWindowGrab
if(screen) SDL_SetWindowGrab(screen, SDL_FALSE);
/// "Use this function to set relative mouse mode."
/// https://wiki.libsdl.org/SDL_SetRelativeMouseMode
SDL_SetRelativeMouseMode(SDL_FALSE);
/// "Use this function to toggle whether or not the cursor is shown."
/// https://wiki.libsdl.org/SDL_ShowCursor
SDL_ShowCursor(SDL_TRUE);
cleargamma();
/// free octree memory
freeocta(worldroot);
clear_command();
clear_console();
clear_mdls();
clear_sound();
closelogfile();
/// "Use this function to clean up all initialized subsystems. You should call it upon all exit conditions."
/// https://wiki.libsdl.org/SDL_Quit
SDL_Quit();
}
void set_up_terminal() {
char c = attr;
text_color(RED, BLACK);
puts("terminal:>");
term_ind = index;
clear_command();
attr = c;
}
void cleanup()
{
recorder::stop();
cleanupserver();
SDL_ShowCursor(1);
SDL_WM_GrabInput(SDL_GRAB_OFF);
SDL_SetGamma(1, 1, 1);
freeocta(worldroot);
extern void clear_command(); clear_command();
extern void clear_console(); clear_console();
extern void clear_mdls(); clear_mdls();
extern void clear_sound(); clear_sound();
SDL_Quit();
}
void cleanup()
{
holdscreenlock;
recorder::stop();
cleanupserver();
if(screen) SDL_SetWindowGrab(screen, SDL_FALSE);
SDL_SetRelativeMouseMode(SDL_FALSE);
SDL_ShowCursor(SDL_TRUE);
cleargamma();
freeocta(worldroot);
extern void clear_command(); clear_command();
extern void clear_console(); clear_console();
extern void clear_mdls(); clear_mdls();
extern void clear_sound(); clear_sound();
closelogfile();
SDL_Quit();
}
void cleanup()
{
recorder::stop();
cleanupserver();
showcursor(true);
//#ifdef FAKESHOWCURSOR
// if(scursor) SDL_FreeCursor(scursor);
// scursor = ncursor = NULL;
//#endif
SDL_WM_GrabInput(SDL_GRAB_OFF);
cleargamma();
freeocta(worldroot);
extern void clear_command(); clear_command();
extern void clear_console(); clear_console();
extern void clear_mdls(); clear_mdls();
stopsound();
closelogfile();
SDL_Quit();
}
static void
console_task(layer_t* layer, unsigned int mem_total)
{
#define INPUT_BEG_POS_X (24)
#define INPUT_BEG_POS_Y (28)
#define PROMPT_CHAR ("> ")
#define PROMPT_LEN (2)
timer_t* timer;
task_t* task = task_now();
int data, fifobuf[128];
int cursor_x = INPUT_BEG_POS_X, cursor_y = INPUT_BEG_POS_Y;
int cursor_c = -1;
char buf[32], cmdline[32];
mem_mgr_t* memmgr = (mem_mgr_t*)MEMMGR_ADDR;
fifo_init(&task->fifo, fifobuf, 128, task);
timer = timer_alloc();
timer_init(timer, &task->fifo, 1);
timer_settimer(timer, 50);
/* display the prompt of console window */
drawstring_and_refresh(layer, 8, 28,
COLOR8_FFFFFF, COLOR8_000000, PROMPT_CHAR, PROMPT_LEN);
for ( ; ; ) {
io_cli();
if (0 == fifo_size(&task->fifo)) {
task_sleep(task);
io_sti();
}
else {
data = fifo_get(&task->fifo);
io_sti();
if (data <= 1) {
/* timer for cursor */
if (0 != data) {
timer_init(timer, &task->fifo, 0);
if (cursor_c >= 0)
cursor_c = COLOR8_FFFFFF;
}
else {
timer_init(timer, &task->fifo, 1);
if (cursor_c >= 0)
cursor_c = COLOR8_000000;
}
timer_settimer(timer, 50);
}
if (2 == data) /* cursor ON */
cursor_c = COLOR8_FFFFFF;
if (3 == data) { /* cursor OFF */
fill_box8(layer->buf, layer->w_size,
COLOR8_000000, cursor_x, 28, cursor_x + 7, cursor_y + 15);
cursor_c = -1;
}
if (256 <= data && data <= 511) {
/* keyboard data */
if ((8 + 256) == data) {
/* backspace */
if (cursor_x > INPUT_BEG_POS_X) {
/* erase the cursor and move forward one character */
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, " ", 1);
cursor_x -= 8;
}
}
else if ((10 + 256) == data) {
/* Enter Key */
/* erase cursor by space */
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, " ", 1);
cmdline[cursor_x / 8 - 3] = 0;
cursor_y = console_newline(cursor_y, layer);
/* execute command */
if (0 == strcmp("mem", cmdline)) {
/* check memory command */
cursor_y = memory_command(layer, memmgr, mem_total, cursor_y);
}
else if (0 == strcmp("clear", cmdline)) {
/* clear command */
cursor_y = clear_command(layer);
}
else if (0 == strcmp("ls", cmdline)) {
/* ls(dir) command */
cursor_y = list_command(layer, cursor_y);
}
else if (0 == strncmp("cat ", cmdline, 4)) {
/* cat command */
cursor_y = cat_command(layer, cursor_x, cursor_y, cmdline);
}
else if (0 != cmdline[0]) {
/* neither command nor null string */
drawstring_and_refresh(layer, 8, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, "Bad Command.", 12);
cursor_y = console_newline(cursor_y, layer);
cursor_y = console_newline(cursor_y, layer);
}
/* show prompt */
drawstring_and_refresh(layer, 8, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, PROMPT_CHAR, PROMPT_LEN);
cursor_x = INPUT_BEG_POS_X;
}
else {
/* general character */
if (cursor_x < 240) {
/* display one character and move backward one character */
buf[0] = data - 256;
buf[1] = 0;
cmdline[cursor_x / 8 - 3] = data - 256;
drawstring_and_refresh(layer, cursor_x, cursor_y,
COLOR8_FFFFFF, COLOR8_000000, buf, 1);
cursor_x += 8;
}
}
}
/* show the cursor again */
if (cursor_c >= 0) {
fill_box8(layer->buf, layer->w_size,
cursor_c, cursor_x, cursor_y, cursor_x + 7, cursor_y + 15);
}
layers_refresh(layer, cursor_x, cursor_y,
cursor_x + 8, cursor_y + 16);
}
}
}
void run_command() {
is_cmd = 1;
int size = str_len(command);
if(str_startswith(command, "hlt") == 1) {
text_color(BLACK, BLACK);
clear_screen();
halt();
} else if(str_startswith(command, "println")) {
putslns(command, 8, size);
} else if(str_startswith(command, "printvln")) {
if(letti(command[9]) != -1)
putnumln(reg[letti(command[9])]);
} else if(str_startswith(command, "printv")) {
if(letti(command[7]) != -1)
putnum(reg[letti(command[7])]);
} else if(str_startswith(command, "print")) {
putss(command, 6, size);
} else if (str_startswith(command, "clear")) {
clear_screen();
index = 0;
} else if(str_startswith(command, "setv")) {
if(letti(command[5]) != -1) {
int r = letti(command[5]);
int i = 0;
while(i < 7) {
command[i] = ' ';
i++;
}
reg[r] = atoi(command);
}
} else if(str_startswith(command, "add")) {
if(letti(command[4])!=-1 && letti(command[6])!=-1)
reg[letti(command[4])] += reg[letti(command[6])];
} else if(str_startswith(command, "sub")) {
if(letti(command[4])!=-1 && letti(command[6])!=-1)
reg[letti(command[4])] -= reg[letti(command[6])];
} else if(str_startswith(command, "mul")) {
if(letti(command[4])!=-1 && letti(command[6])!=-1)
reg[letti(command[4])] *= reg[letti(command[6])];
} else if(str_startswith(command, "div")) {
if(letti(command[4])!=-1 && letti(command[6])!=-1)
reg[letti(command[4])] /= reg[letti(command[6])];
} else if(str_startswith(command, "mod")) {
if(letti(command[4])!=-1 && letti(command[6])!=-1)
reg[letti(command[4])] %= reg[letti(command[6])];
} else if(str_startswith(command, "cc") == 1) {
if(str_startswith(command, "cc help")) {
putsln("Colors:");
putsln(">>> BLACK :: 0");
putsln(">>> BLUE :: 1");
putsln(">>> GREEN :: 2");
putsln(">>> CYAN :: 3");
putsln(">>> RED :: 4");
putsln(">>> MAGENTA :: 5");
putsln(">>> BROWN :: 6");
putsln(">>> LT GRAY :: 7");
putsln(">>> DK GRAY :: 8");
putsln(">>> LT BLUE :: 9");
putsln(">>> LT GREEN :: A");
putsln(">>> LT CYAN :: B");
putsln(">>> LT RED :: C");
putsln(">>> LT MAGENTA :: D");
putsln(">>> LT BROWN :: E");
putsln(">>> WHITE :: F");
} else {
char b = command[4];
char f = command[3];
if(f > '@' && b > '@')
text_color(f - '0', b - 55);
else if(f > '@')
text_color(f - 55, b - '0');
else if(b > '@')
text_color(f - '0', b - 55);
else
text_color(f - '0', b - '0');
}
} else if(str_startswith(command, "help") == 1) {
putsln("Commands:");
putsln(">>> hlt :: halts cpu");
putsln(">>> cc fb|help :: change text color - (fore, back)");
putsln(">>> print text :: print out a piece of text");
putsln(">>> printv let :: print out the value of variable let");
putsln(">>> printvln let :: print out the value of variable let with a line after");
putsln(">>> println text :: print out a piece of text with a line");
putsln(">>> clear :: Clears the screen");
putsln(">>> setv let val :: set variable let to val");
putsln(">>> add base set :: adds base to set and stores in base");
putsln(">>> sub base set :: subtracts base from set and stores in base");
putsln(">>> mul base set :: multiplies base by set and stores in base");
putsln(">>> div base set :: divides base by set and stores in set");
putsln(">>> mod base set :: divides base by set and stores remainder in set");
putsln(">>> println text :: print out a piece of text with a line");
putsln(">>> help :: show help command");
} else {
puts(">>> Unknown command: ");
putsln(command);
putsln(">>> Try help.");
}
clear_command();
is_cmd = 0;
}
/*
* void execute_commands()
*
* Processes commands until the QUIT command is entered
*
*/
void execute_commands() {
char buffer[MAX_INPUT_STRING];
int num_chars = 0;
while ( TRUE ) {
printf( PROMPT );
scanf("%s", buffer);
num_chars = strlen(buffer);
if ( is_valid_number( buffer ) ) {
push( atoi(buffer) );
continue;
}
if ( num_chars > 1 ) {
printf( BAD_INPUT_MSG );
continue;
}
if ( tolower( buffer[0] ) == QUIT ) return;
/* Remove the TODO_MSG as you implement and test commands */
switch( tolower( buffer[0] ) ){
case ADD:
add_command();
break;
case SUB:
sub_command();
break;
case MULT:
mult_command();
break;
case DIV:
div_command();
break;
case MOD:
mod_command();
break;
case AND:
and_command();
break;
case OR:
or_command();
break;
case XOR:
xor_command();
break;
case NOT:
not_command();
break;
case FACTORIAL:
factorial_command();
break;
case TOGGLE_HEX:
toggle_hex();
break;
case TOGGLE_BUG:
toggle_bug();
break;
case PRINT_STACK:
print_stack();
break;
case PRINT_TOP:
print_top();
break;
case CLEAR:
clear_command();
break;
case EXCHANGE:
exchange_command();
break;
case POP:
pop();
break;
case HELP:
help_command();
break;
default:
printf( BAD_INPUT_MSG );
}
}
}