diff options
| author | Matthew Maurer | 2023-10-31 20:10:14 +0000 |
|---|---|---|
| committer | Miguel Ojeda | 2023-12-14 20:14:01 +0100 |
| commit | 71479eee9da8ddb53f3ddb91bc8591d90fb8b142 (patch) | |
| tree | d4a9aec9214b59feee290bd9cb0b8f403bc01775 /scripts/Makefile.build | |
| parent | 88c2e1169f5f0c2ccdd0a001e4447a1b0da2b661 (diff) | |
rust: Suppress searching builtin sysroot
By default, if Rust is passed `--target=foo` rather than a target.json
file, it will infer a default sysroot if that component is installed. As
the proposed aarch64 support [1] uses `aarch64-unknown-none` rather than a
target.json file, this is needed [2] to prevent rustc from being confused
between the custom kernel sysroot and the pre-installed one.
[ Miguel: Applied Boqun's extra case (for `rusttest`) and reworded to add
links to the arm64 patch series discussion. In addition, fixed the
`rustdoc` target too (which requires a conditional since `cmd_rustdoc`
is also used for host crates like `macros`). ]
Signed-off-by: Matthew Maurer <mmaurer@google.com>
Tested-by: Boqun Feng <boqun.feng@gmail.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://lore.kernel.org/rust-for-linux/20231020155056.3495121-1-Jamie.Cunliffe@arm.com/ [1]
Link: https://lore.kernel.org/rust-for-linux/CAGSQo01pOixiPXkW867h4vPUaAjtKtHGKhkV-rpifJvKxAf4Ww@mail.gmail.com/ [2]
Link: https://lore.kernel.org/r/20231031201752.1189213-1-mmaurer@google.com
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Diffstat (limited to 'scripts/Makefile.build')
| -rw-r--r-- | scripts/Makefile.build | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/scripts/Makefile.build b/scripts/Makefile.build index 9a3063735e71..dae447a1ad30 100644 --- a/scripts/Makefile.build +++ b/scripts/Makefile.build @@ -275,6 +275,7 @@ rust_common_cmd = \ --extern alloc --extern kernel \ --crate-type rlib -L $(objtree)/rust/ \ --crate-name $(basename $(notdir $@)) \ + --sysroot=/dev/null \ --out-dir $(dir $@) --emit=dep-info=$(depfile) # `--emit=obj`, `--emit=asm` and `--emit=llvm-ir` imply a single codegen unit |