diff --git a/bootloader/rustsbi-k210.bin b/bootloader/rustsbi-k210.bin
index 158bfa4c..c53ed1fc 100755
Binary files a/bootloader/rustsbi-k210.bin and b/bootloader/rustsbi-k210.bin differ
diff --git a/bootloader/rustsbi-qemu.bin b/bootloader/rustsbi-qemu.bin
index 76e0e59e..ddbf336a 100755
Binary files a/bootloader/rustsbi-qemu.bin and b/bootloader/rustsbi-qemu.bin differ
diff --git a/os/Cargo.toml b/os/Cargo.toml
index 43768d78..25e91d10 100644
--- a/os/Cargo.toml
+++ b/os/Cargo.toml
@@ -8,4 +8,7 @@ edition = "2018"
 
 [dependencies]
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] }
-lazy_static = { version = "1.4.0", features = ["spin_no_std"] }
\ No newline at end of file
+lazy_static = { version = "1.4.0", features = ["spin_no_std"] }
+
+[profile.release]
+debug = true
diff --git a/os/Makefile b/os/Makefile
index 14c2cffc..5dcf0797 100644
--- a/os/Makefile
+++ b/os/Makefile
@@ -1,6 +1,6 @@
 # Building
 TARGET := riscv64gc-unknown-none-elf
-MODE := debug
+MODE := release
 KERNEL_ELF := target/$(TARGET)/$(MODE)/os
 KERNEL_BIN := $(KERNEL_ELF).bin
 DISASM_TMP := target/$(TARGET)/$(MODE)/asm
@@ -104,4 +104,4 @@ gdbserver: build
 gdbclient:
 	@riscv64-unknown-elf-gdb -ex 'file $(KERNEL_ELF)' -ex 'set arch riscv:rv64' -ex 'target remote localhost:1234'
 
-.PHONY: build env kernel clean disasm disasm-vim run-inner switch-check gdbserver
+.PHONY: build env kernel clean disasm disasm-vim run-inner switch-check gdbserver gdbclient
diff --git a/user/Cargo.toml b/user/Cargo.toml
index b7518dde..b11dcccc 100644
--- a/user/Cargo.toml
+++ b/user/Cargo.toml
@@ -8,3 +8,6 @@ edition = "2018"
 
 [dependencies]
 riscv = { git = "https://github.com/rcore-os/riscv", features = ["inline-asm"] } 
+
+[profile.release]
+debug = true