Statx (#632)

* 实现statx及测试的应用程序

user/apps/test_statx/.gitignore

@@ -0,0 +1,2 @@
+Cargo.lock
+/target

user/apps/test_statx/Cargo.toml

@@ -0,0 +1,8 @@
+[package]
+name = "test_statx"
+version = "0.1.0"
+edition = "2021"
+
+[dependencies]
+libc = "0.2.153"
+sc = "0.2.7"

user/apps/test_statx/Makefile

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+TOOLCHAIN="+nightly-2023-08-15-x86_64-unknown-linux-gnu"
+# RUSTFLAGS+="-C target-feature=+crt-static -C link-arg=-no-pie"
+
+ifdef DADK_CURRENT_BUILD_DIR
+# 如果是在dadk中编译，那么安装到dadk的安装目录中
+	INSTALL_DIR = $(DADK_CURRENT_BUILD_DIR)
+else
+# 如果是在本地编译，那么安装到当前目录下的install目录中
+	INSTALL_DIR = ./install
+endif
+
+ifeq ($(ARCH), x86_64)
+	export RUST_TARGET=x86_64-unknown-linux-musl
+else ifeq ($(ARCH), riscv64)
+	export RUST_TARGET=riscv64gc-unknown-linux-gnu
+else 
+# 默认为x86_86，用于本地编译
+	export RUST_TARGET=x86_64-unknown-linux-musl
+endif
+
+run:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) run --target $(RUST_TARGET)
+
+build:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) build --target $(RUST_TARGET)
+
+clean:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) clean --target $(RUST_TARGET)
+
+test:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) test --target $(RUST_TARGET)
+
+doc:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) doc --target $(RUST_TARGET)
+
+fmt:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) fmt
+
+fmt-check:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) fmt --check
+
+run-release:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) run --target $(RUST_TARGET) --release
+
+build-release:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) build --target $(RUST_TARGET) --release
+
+clean-release:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) clean --target $(RUST_TARGET) --release
+
+test-release:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) test --target $(RUST_TARGET) --release
+
+.PHONY: install
+install:
+	RUSTFLAGS=$(RUSTFLAGS) cargo $(TOOLCHAIN) install --target $(RUST_TARGET) --path . --no-track --root $(INSTALL_DIR) --force

user/apps/test_statx/src/main.rs

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+use libc::syscall;
+use libc::AT_FDCWD;
+use std::ffi::CString;
+
+#[derive(Debug, Clone, Copy)]
+#[repr(C)]
+pub struct Statx {
+    pub stx_mask: u32,
+    pub stx_blksize: u32,
+    pub stx_attributes: u64,
+    pub stx_nlink: u32,
+    pub stx_uid: u32,
+    pub stx_gid: u32,
+    pub stx_mode: u16,
+    __statx_pad1: [u16; 1],
+    pub stx_ino: u64,
+    pub stx_size: u64,
+    pub stx_blocks: u64,
+    pub stx_attributes_mask: u64,
+    pub stx_atime: StatxTimestamp,
+    pub stx_btime: StatxTimestamp,
+    pub stx_ctime: StatxTimestamp,
+    pub stx_mtime: StatxTimestamp,
+    pub stx_rdev_major: u32,
+    pub stx_rdev_minor: u32,
+    pub stx_dev_major: u32,
+    pub stx_dev_minor: u32,
+    pub stx_mnt_id: u64,
+    pub stx_dio_mem_align: u32,
+    pub stx_dio_offset_align: u32,
+    __statx_pad3: [u64; 12],
+}
+
+#[derive(Debug, Clone, Copy)]
+#[repr(C)]
+pub struct StatxTimestamp {
+    pub tv_sec: i64,
+    pub tv_nsec: u32,
+    pub __statx_timestamp_pad1: [i32; 1],
+}
+
+fn main() {
+    let path = CString::new("/bin/about.elf").expect("Failed to create CString");
+    let mut statxbuf: Statx = unsafe { std::mem::zeroed() };
+    let x = sc::nr::STATX as i64;
+
+    let result = unsafe {
+        syscall(
+            x,
+            AT_FDCWD,
+            path.as_ptr(),
+            libc::AT_SYMLINK_NOFOLLOW,
+            0x7ff,
+            &mut statxbuf,
+        )
+    };
+
+    if result != -1 {
+        println!("statx succeeded: {:?}", statxbuf);
+    } else {
+        eprintln!("statx failed");
+    }
+}