Add more from the std

justfile

@@ -1,6 +1,7 @@
 release := ""
 qemu_flags := ""
 cargo_flags := "" + if release != "" { "--release" } else { "" }
+KERNEL_FLAGS := "-Zbuild-std=core,compiler_builtins,alloc -Zbuild-std-features=compiler-builtins-mem"
 bin_path := if release != "" { "target/riscv64/release" } else { "target/riscv64/debug" }
 
 default: run
@@ -13,15 +14,18 @@ sync_filesystem:
     sync
 
 update-std:
-    @cd crates/std && just update-std
+    @cd library/std && just update-std
+
+build-sysroot:
+    @cd library/std && just build-sysroot
 
 build_user_prog prog:
-    RUSTFLAGS="-C relocation-model=pic -C link-arg=-Tuser.ld -C link-arg=-pie" cargo b {{ cargo_flags }} --package {{ prog }}
+    RUSTFLAGS="-C relocation-model=pic -C link-arg=-Tuser.ld -C link-arg=-pie --sysroot {{ justfile_directory() / "sysroot" }}" cargo b {{ cargo_flags }} --package {{ prog }}
     riscv64-elf-strip {{ bin_path / prog }}
     cp {{ bin_path / prog }} {{ "mnt/usr/bin" / prog }}
 
 build: mount_filesystem (map_dir "user" f"just release=\"{{release}}\" cargo_flags=\"{{cargo_flags}}\" build_user_prog")
-    cargo b {{ cargo_flags }}
+    cargo b {{ cargo_flags }} {{ KERNEL_FLAGS }}
     just sync_filesystem
 
 run: build (runner f"{{bin_path / "kernel-rust"}}")
@@ -56,4 +60,5 @@ runner args:
     {{ qemu }} -kernel {{ args }}
 
 clean:
+    cd library && just clean
     cargo clean