42 lines
1.6 KiB
Nix
42 lines
1.6 KiB
Nix
{ rustPlatform, fetchFromGitHub, writeText }:
|
|
|
|
rustPlatform.buildRustPackage rec {
|
|
name = "blog_os-sysroot-test";
|
|
|
|
src = fetchFromGitHub {
|
|
owner = "phil-opp";
|
|
repo = "blog_os";
|
|
rev = "4e38e7ddf8dd021c3cd7e4609dfa01afb827797b";
|
|
sha256 = "0k9ipm9ddm1bad7bs7368wzzp6xwrhyfzfpckdax54l4ffqwljcg";
|
|
};
|
|
|
|
cargoSha256 = "1cbcplgz28yxshyrp2krp1jphbrcqdw6wxx3rry91p7hiqyibd30";
|
|
|
|
# The book uses rust-lld for linking, but rust-lld is not currently packaged for NixOS.
|
|
# The justification in the book for using rust-lld suggests that gcc can still be used for testing:
|
|
# > Instead of using the platform's default linker (which might not support Linux targets),
|
|
# > we use the cross platform LLD linker that is shipped with Rust for linking our kernel.
|
|
# https://github.com/phil-opp/blog_os/blame/7212ffaa8383122b1eb07fe1854814f99d2e1af4/blog/content/second-edition/posts/02-minimal-rust-kernel/index.md#L157
|
|
target = writeText "x86_64-blog_os.json" ''
|
|
{
|
|
"llvm-target": "x86_64-unknown-none",
|
|
"data-layout": "e-m:e-i64:64-f80:128-n8:16:32:64-S128",
|
|
"arch": "x86_64",
|
|
"target-endian": "little",
|
|
"target-pointer-width": "64",
|
|
"target-c-int-width": "32",
|
|
"os": "none",
|
|
"executables": true,
|
|
"linker-flavor": "gcc",
|
|
"panic-strategy": "abort",
|
|
"disable-redzone": true,
|
|
"features": "-mmx,-sse,+soft-float"
|
|
}
|
|
'';
|
|
|
|
RUSTFLAGS = "-C link-arg=-nostartfiles";
|
|
|
|
# Tests don't work for `no_std`. See https://os.phil-opp.com/testing/
|
|
doCheck = false;
|
|
}
|