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🆕 在shell中启动另一个程序

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This commit is contained in:
fslongjin
2022-06-07 23:18:26 +08:00
parent 129d24296b
commit 4e04ab9eee
14 changed files with 109 additions and 77 deletions
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15
user/apps/shell/shell.c
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@ -42,23 +42,10 @@ void main_loop(int kb_fd)
unsigned char input_buffer[INPUT_BUFFER_SIZE] = {0};
sbrk(24);
// brk(0x700000000000 + (1<<21));
pid_t pid = fork();
int retval = 0;
for(int i=0;i<10;++i)
printf(" @pid=%d ", pid);
if(pid == 0)
{
int a = 1/0;
}
// 初始化当前工作目录的路径
shell_current_path = (char *)malloc(3);
memset(shell_current_path, 0, 3);
memset(shell_current_path, 0, 3);
shell_current_path[0] = '/';
shell_current_path[1] = '\0';