[style] format the code style

Cargo.toml

@@ -13,7 +13,6 @@ axerrno = "0.1"
 memory_addr = "0.3"
 xmas-elf = "0.9"
 bitflags = "2.6"
-
 kernel-elf-parser = "0.1.0"
 num_enum = { version = "0.7", default-features = false }
 syscalls = { version = "0.6", default-features = false }

apps/libc/Makefile

@@ -58,7 +58,8 @@ build_rust:
 		for app in $(shell find rust -name Cargo.toml); do \
 			echo "Building $$(dirname $${app})"; \
 			app_name=$$(basename $$(dirname $${app})); \
-			RUSTFLAGS=$(RUSTFLAGS) cargo build --release --target $(RUST_TARGET) --manifest-path $${app} ; \
+      export RUSTFLAGS=$(RUSTFLAGS); \
+			cargo build --release --target $(RUST_TARGET) --manifest-path $${app} ; \
 			cp $$(dirname $${app})/target/$(RUST_TARGET)/release/$${app_name} build/$(ARCH)/$${app_name}_rust ; \
 		done \
 	fi

build.rs

@@ -102,10 +102,22 @@ fn gen_kernel_config(arch: &str) -> Result<()> {
             let key_name = key.to_uppercase().replace('-', "_");
             match value {
                 toml_edit::Value::Integer(i) => {
-                    writeln!(f, "pub(crate) const {}: usize = {};", key_name, i)?;
+                    writeln!(
+                        f,
+                        "
+                    #[allow(dead_code)]\n
+                    pub const {}: usize = {};",
+                        key_name, i
+                    )?;
                 }
                 toml_edit::Value::String(s) => {
-                    writeln!(f, "pub(crate) const {}: &str = \"{}\";", key_name, s)?;
+                    writeln!(
+                        f,
+                        "
+                    #[allow(dead_code)]\n
+                    pub const {}: &str = \"{}\";",
+                        key_name, s
+                    )?;
                 }
                 _ => {
                     panic!("Unsupported value type");

src/syscall_imp/mm/mmap.rs

@@ -6,10 +6,10 @@ use memory_addr::{VirtAddr, VirtAddrRange};
 use crate::syscall_body;
 
 bitflags::bitflags! {
-    #[derive(Debug)]
     /// permissions for sys_mmap
     ///
     /// See <https://github.com/bminor/glibc/blob/master/bits/mman.h>
+    #[derive(Debug)]
     struct MmapProt: i32 {
         /// Page can be read.
         const PROT_READ = 1 << 0;
@@ -37,10 +37,10 @@ impl From<MmapProt> for MappingFlags {
 }
 
 bitflags::bitflags! {
-    #[derive(Debug)]
     /// flags for sys_mmap
     ///
     /// See <https://github.com/bminor/glibc/blob/master/bits/mman.h>
+    #[derive(Debug)]
     struct MmapFlags: i32 {
         /// Share changes
         const MAP_SHARED = 1 << 0;

src/syscall_imp/mod.rs

@@ -2,16 +2,18 @@ mod fs;
 mod mm;
 mod task;
 mod time;
+
 use axerrno::LinuxError;
 use axhal::{
     arch::TrapFrame,
     trap::{register_trap_handler, SYSCALL},
 };
-use fs::*;
-use mm::*;
 use syscalls::Sysno;
-use task::*;
-use time::*;
+
+use self::fs::*;
+use self::mm::*;
+use self::task::*;
+use self::time::*;
 
 /// Macro to generate syscall body
 ///