使用DragonReach启动shell，修改getdents

kernel/src/driver/virtio/transport_pci.rs

@@ -7,7 +7,7 @@ use crate::driver::pci::pci::{
 
 use crate::driver::pci::pci_irq::{IrqCommonMsg, IrqMsg, IrqSpecificMsg, PciInterrupt, IRQ};
 use crate::include::bindings::bindings::pt_regs;
-use crate::kdebug;
+
 use crate::libs::volatile::{
     volread, volwrite, ReadOnly, Volatile, VolatileReadable, VolatileWritable, WriteOnly,
 };

kernel/src/filesystem/vfs/file.rs

@@ -277,8 +277,6 @@ impl File {
 
         self.offset += 1;
         dirent.d_ino = sub_inode.metadata().unwrap().inode_id.into() as u64;
-        dirent.d_off = 0;
-        dirent.d_reclen = 0;
         dirent.d_type = sub_inode.metadata().unwrap().file_type.get_file_type_num() as u8;
         // 根据posix的规定，dirent中的d_name是一个不定长的数组，因此需要unsafe来拷贝数据
         unsafe {
@@ -289,8 +287,13 @@ impl File {
         }
 
         // 计算dirent结构体的大小
-        return Ok((name_bytes.len() + ::core::mem::size_of::<Dirent>()
-            - ::core::mem::size_of_val(&dirent.d_name)) as u64);
+        let size = (name_bytes.len() + ::core::mem::size_of::<Dirent>()
+            - ::core::mem::size_of_val(&dirent.d_name)) as u64;
+
+        dirent.d_reclen = size as u16;
+        dirent.d_off += dirent.d_reclen as i64;
+
+        return Ok(size);
     }
 
     pub fn inode(&self) -> Arc<dyn IndexNode> {

kernel/src/process/fork.rs

@@ -182,13 +182,13 @@ impl ProcessManager {
             let new_fd_table = current_pcb.basic().fd_table().unwrap().read().clone();
             let new_fd_table = Arc::new(RwLock::new(new_fd_table));
             new_pcb.basic_mut().set_fd_table(Some(new_fd_table));
+        } else {
+            // 如果共享文件描述符表，则直接拷贝指针
+            new_pcb
+                .basic_mut()
+                .set_fd_table(current_pcb.basic().fd_table().clone());
         }
 
-        // 如果共享文件描述符表，则直接拷贝指针
-        new_pcb
-            .basic_mut()
-            .set_fd_table(current_pcb.basic().fd_table().clone());
-
         return Ok(());
     }
 

kernel/src/process/init.rs

@@ -36,9 +36,9 @@ pub fn initial_kernel_thread() -> i32 {
 
 /// 切换到用户态
 fn switch_to_user() {
-    let path = String::from("/bin/shell.elf");
-    let argv = vec![String::from("/bin/shell.elf")];
-    let envp = vec![String::from("PATH=/bin")];
+    let path = String::from("/bin/DragonReach");
+    let argv = vec![String::from("/bin/DragonReach")];
+    let envp = vec![String::from("PATH=/")];
 
     unsafe { arch_switch_to_user(path, argv, envp) };
 }

user/Makefile

@@ -14,7 +14,7 @@ current_CFLAGS := $(CFLAGS)
 
 DADK_VERSION=$(shell dadk -V | awk 'END {print $$2}')
 # 最小的DADK版本
-MIN_DADK_VERSION = 0.1.2
+MIN_DADK_VERSION = 0.1.3
 DADK_CACHE_DIR = $(ROOT_PATH)/bin/dadk_cache
 
 # 旧版的libc安装路径
@@ -57,8 +57,9 @@ dadk_run: install_dadk
 
 .PHONY: dadk_clean
 dadk_clean: install_dadk
-	dadk --config-dir dadk/config --cache-dir $(DADK_CACHE_DIR) --dragonos-dir $(ROOT_PATH)/bin/sysroot clean src
-	dadk --config-dir dadk/config --cache-dir $(DADK_CACHE_DIR) --dragonos-dir $(ROOT_PATH)/bin/sysroot clean target
+# 不运行dadk clean的原因是，把clean的工作交给应用程序自己去做，这样可以节省编译时间
+#dadk --config-dir dadk/config --cache-dir $(DADK_CACHE_DIR) --dragonos-dir $(ROOT_PATH)/bin/sysroot clean src
+#dadk --config-dir dadk/config --cache-dir $(DADK_CACHE_DIR) --dragonos-dir $(ROOT_PATH)/bin/sysroot clean target
 
 $(user_sub_dirs): ECHO sys_api_lib 
 

user/dadk/config/dragon_reach-0.1.0.dadk

@@ -0,0 +1,29 @@
+{
+  "name": "DragonReach",
+  "version": "0.1.0",
+  "description": "init程序",
+  "task_type": {
+    "BuildFromSource": {
+      "Git": {
+        "url" : "https://git.mirrors.dragonos.org/DragonOS-Community/DragonReach.git",
+        "revision": "4aac1004fa"
+      }
+    }
+  },
+  "depends": [],
+  "build": {
+    "build_command": "make install"
+  },
+  "clean": {
+    "clean_command": "make clean"
+  },
+  "install": {
+    "in_dragonos_path": "/"
+  },
+  "envs": [    
+    {
+      "key": "TARGET",
+      "value": "${ROOT_PATH}/user/dadk/target/x86_64-unknown-dragonos.json"
+    }
+  ]
+}

user/dadk/config/relibc-0.1.0.dadk

@@ -6,8 +6,7 @@
     "BuildFromSource": {
       "Git": {
         "url": "https://git.mirrors.dragonos.org/DragonOS-Community/relibc.git",
-        "branch": "dragonos-relibc",
-        "revision": null
+        "revision": "26536e7fcd"
       }
     }
   },

user/dadk/target/x86_64-unknown-dragonos.json

@@ -0,0 +1,35 @@
+{
+    "arch": "x86_64",
+    "code-model": "kernel",
+    "cpu": "x86-64",
+    "os": "dragonos",
+    "target-endian": "little",
+    "target-pointer-width": "64",
+    "target-family": [
+        "unix"
+    ],
+    "env": "musl",
+    "target-c-int-width": "32",
+    "data-layout": "e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128",
+    "disable-redzone": true,
+    "features": "-3dnow,-3dnowa,-avx,-avx2",
+    "linker": "rust-lld",
+    "linker-flavor": "ld.lld",
+    "llvm-target": "x86_64-unknown-none",
+    "max-atomic-width": 64,
+    "panic-strategy": "abort",
+    "position-independent-executables": true,
+    "relro-level": "full",
+    "stack-probes": {
+        "kind": "inline-or-call",
+        "min-llvm-version-for-inline": [
+            16,
+            0,
+            0
+        ]
+    },
+    "static-position-independent-executables": true,
+    "supported-sanitizers": [
+        "kcfi"
+    ]
+}