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| author | David Gow <david@davidgow.net> | 2026-04-25 06:41:23 +0300 |
|---|---|---|
| committer | Miguel Ojeda <ojeda@kernel.org> | 2026-04-30 23:40:57 +0300 |
| commit | ba6b328588f7cb7cf4aca33bae565c2914d74786 (patch) | |
| tree | 7dc091dca1194c505ffb57c1fcbc5d9d4f22db06 | |
| parent | 254f49634ee16a731174d2ae34bc50bd5f45e731 (diff) | |
| download | linux-ba6b328588f7cb7cf4aca33bae565c2914d74786.tar.xz | |
rust: arch: um: Fix building 32-bit UML with GCC
32-bit UML builds can be configured either by setting CONFIG_64BIT=n or
with SUBARCH=i386. Both work with Rust-for-Linux when clang is the
compiler, but when SUBARCH=i386, we don't set a bindgen target correctly if
gcc is the compiler.
Add the appropriate bindgen target configuration for i386, as is done in
Makefile.clang.
[ For reference, the errors look like:
BINDGEN rust/bindings/bindings_generated.rs
error: unsupported option '-mno-sse' for target ''
...
error: unknown target triple 'unknown'
panicked at .../bindgen-0.72.1/ir/context.rs:562:15:
libclang error; possible causes include:
...
- Miguel ]
Fixes: ab0f4cedc355 ("arch: um: rust: Add i386 support for Rust")
Signed-off-by: David Gow <david@davidgow.net>
Link: https://patch.msgid.link/20260425034125.53866-1-david@davidgow.net
[ Added space in title. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
| -rw-r--r-- | rust/Makefile | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/rust/Makefile b/rust/Makefile index b361bfedfdf0..b9e9f512cec3 100644 --- a/rust/Makefile +++ b/rust/Makefile @@ -403,6 +403,8 @@ BINDGEN_TARGET_x86 := x86_64-linux-gnu BINDGEN_TARGET_arm64 := aarch64-linux-gnu BINDGEN_TARGET_arm := arm-linux-gnueabi BINDGEN_TARGET_loongarch := loongarch64-linux-gnusf +# This is only for i386 UM builds, which need the 32-bit target not -m32 +BINDGEN_TARGET_i386 := i386-linux-gnu BINDGEN_TARGET_um := $(BINDGEN_TARGET_$(SUBARCH)) BINDGEN_TARGET := $(BINDGEN_TARGET_$(SRCARCH)) |