From 09522e8344d5ab36fc3aad53443abc059a4413db Mon Sep 17 00:00:00 2001
From: Hiroki Tokunaga <tokusan441@gmail.com>
Date: Wed, 30 Jun 2021 11:29:51 +0900
Subject: [PATCH] chore(kernel): avoid to compile `build.rs` wrongly (#84)

Without specifying a target, `build.rs` will also be compiled with the
same codegen options. See: https://github.com/rust-lang/cargo/issues/6375#issuecomment-444900324
---
 Makefile                  | 2 +-
 kernel/.cargo/config.toml | 3 +++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 395c72f1..77239173 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ KERNEL_SRCS	=	$(shell find $(KERNEL_DIR) -name *.rs)
 KERNEL_SRCS	+=	$(KERNEL_DIR)/Cargo.toml
 KERNEL_SRCS	+=	$(KERNEL_DIR)/.cargo/config.toml
 KERNEL_SRCS	+=	$(KERNEL_DIR)/kernel.ld
-KERNEL	=	target/debug/kernel
+KERNEL	=	target/$(ARCH)-unknown-linux-gnu/debug/kernel
 
 ISO_FILE	=	$(BUILD_DIR)/antei.iso
 
diff --git a/kernel/.cargo/config.toml b/kernel/.cargo/config.toml
index f6f8e89e..0b454e1b 100644
--- a/kernel/.cargo/config.toml
+++ b/kernel/.cargo/config.toml
@@ -1,4 +1,7 @@
 [build]
+target = "x86_64-unknown-linux-gnu"
+
+[target.x86_64-unknown-linux-gnu]
 rustflags = [
     "-C", "code-model=kernel",
     "-C", "link-args=-T kernel/kernel.ld",