Add creat()/unlink()/mkdir()

include/sys/amd64/sys_file.h

@@ -7,11 +7,15 @@ ssize_t sys_read(int fd, void *buf, size_t lim);
 ssize_t sys_write(int fd, const void *buf, size_t lim);
 int sys_open(const char *filename, int flags, int mode);
 void sys_close(int fd);
+int sys_creat(const char *pathname, int mode);
 
 ssize_t sys_readdir(int fd, struct dirent *ent);
 int sys_getcwd(char *buf, size_t lim);
 int sys_chdir(const char *filename);
 
+int sys_mkdir(const char *pathname, int mode);
+int sys_unlink(const char *pathname);
+
 int sys_stat(const char *filename, struct stat *st);
 int sys_access(const char *path, int mode);
 

include/sys/syscall.h

@@ -8,6 +8,9 @@
 #define SYSCALL_NR_ACCESS       21
 #define SYSCALL_NR_GETCWD       79
 #define SYSCALL_NR_CHDIR        80
+#define SYSCALL_NR_MKDIR        83
+#define SYSCALL_NR_CREAT        85
+#define SYSCALL_NR_UNLINK       87
 #define SYSCALL_NR_READDIR      89
 
 #define SYSCALL_NR_BRK          12

sys/amd64/sys_file.c

@@ -66,6 +66,24 @@ ssize_t sys_readdir(int fd, struct dirent *ent) {
     return src->d_reclen;
 }
 
+int sys_creat(const char *pathname, int mode) {
+    return sys_open(pathname, O_CREAT | O_WRONLY | O_TRUNC, mode);
+}
+
+int sys_mkdir(const char *pathname, int mode) {
+    struct thread *thr = get_cpu()->thread;
+    _assert(thr);
+
+    return vfs_mkdir(&thr->ioctx, pathname, mode);
+}
+
+int sys_unlink(const char *pathname) {
+    struct thread *thr = get_cpu()->thread;
+    _assert(thr);
+
+    return vfs_unlink(&thr->ioctx, pathname);
+}
+
 int sys_chdir(const char *filename) {
     struct thread *thr = get_cpu()->thread;
     _assert(thr);

sys/amd64/syscall.c

@@ -22,6 +22,9 @@ const void *amd64_syscall_jmp_table[256] = {
     [SYSCALL_NR_STAT] = sys_stat,
     [SYSCALL_NR_ACCESS] = sys_access,
     [SYSCALL_NRX_OPENPTY] = sys_openpty,
+    [SYSCALL_NR_UNLINK] = sys_unlink,
+    [SYSCALL_NR_MKDIR] = sys_mkdir,
+    [SYSCALL_NR_CREAT] = sys_creat,
 
     // Process
     [SYSCALL_NR_EXIT] = sys_exit,