补充块设备对 sysfs 的注册, 修复块设备管理器读写错误实现问题.

重写 nvme 硬盘驱动.
补充 fsync fdatasync 系统调用.
修复 squashfs 的读取偏移未计算导致解压块错误问题.

Author: xiaoyi1212

module/squashfs/src/data_reader.c

@@ -389,6 +389,7 @@ sqfs_s32 sqfs_data_reader_read(
         i              = data->cached_block_index;
         off            = data->cached_disk_offset;
         file_block_off = data->cached_block_file_offset;
+        offset -= file_block_off;
     } else {
         i = 0;
     }

src/arch/x86_64/include/nr.h

@@ -63,6 +63,8 @@
 #define SYSCALL_WAITPID       61
 #define SYSCALL_KILL          62
 #define SYSCALL_UNAME         63
+#define SYSCALL_FSYNC         74
+#define SYSCALL_FDATASYNC     75
 #define SYSCALL_FCNTL         72
 #define SYSCALL_FTRUNCATE     77
 #define SYSCALL_GETCWD        79
@@ -128,6 +130,7 @@
 #define SYSCALL_FUTEX         202
 #define SYSCALL_GETDENTS64    217
 #define SYSCALL_SETID_ADDR    218
+#define SYSCALL_FADVISE64     221
 #define SYSCALL_EXIT_GROUP    231
 #define SYSCALL_C_SETTIME     227
 #define SYSCALL_C_GETTIME     228

src/arch/x86_64/main.c

@@ -151,7 +151,7 @@ USED _Noreturn void kmain() {
     urandom_init();
     // usb_init();
     ahci_setup();
-    // nvme_setup();
+    nvme_setup();
     drm_plainfb_init();
 
     cpio_init();

src/arch/x86_64/syscall.c

@@ -227,11 +227,15 @@ syscall_t syscall_handlers[MAX_SYSCALLS] = {
     [SYSCALL_LCHOWN]        = (syscall_t)syscall_lchown,
     [SYSCALL_FCHOWNAT]      = (syscall_t)syscall_fchownat,
     [SYSCALL_UMASK]         = (syscall_t)syscall_umask,
+    [SYSCALL_FADVISE64]     = (syscall_t)syscall_fadvise64,
     [SYSCALL_UTIMENSAT]     = (syscall_t)syscall_utimensat,
     [SYSCALL_FUTIMESAT]     = (syscall_t)syscall_futimensat,
+    [SYSCALL_FSYNC]         = (syscall_t)syscall_fsync,
+    [SYSCALL_FDATASYNC]     = (syscall_t)syscall_fdatasync,
     [SYSCALL_SYNC]          = (syscall_t)syscall_sync,
     [SYSCALL_REBOOT]        = (syscall_t)syscall_reboot,
     [SYSCALL_GETRANDOM]     = (syscall_t)syscall_getrandom,
+    [SYSCALL_FSOPEN]        = (syscall_t)syscall_fsopen,
     [324]                   = (syscall_t)syscall_membarrier,
     [SYSCALL_SOCKET]        = (syscall_t)syscall_socket,
     [SYSCALL_SOCKETPAIR]    = (syscall_t)syscall_socketpair,