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Currently, rustc defaults to invoking `cc`, even if `HOSTCC` is defined, resulting in build failures in hermetic environments where `cc` does not exist. This includes both hostprogs and proc-macros. Since we are setting the linker to `HOSTCC`, we set the linker flavor to `gcc` explicitly. The linker-flavor selects both which linker to search for if the linker is unset, and which kind of linker flags to pass. Without this flag, `rustc` would attempt to determine which flags to pass based on the name of the binary passed as `HOSTCC`. `gcc` is the name of the linker-flavor used by `rustc` for all C compilers, including both `gcc` and `clang`. Signed-off-by: Matthew Maurer <mmaurer@google.com> Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Tested-by: Alice Ryhl <aliceryhl@google.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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| alloc | ||
| bindings | ||
| kernel | ||
| macros | ||
| uapi | ||
| .gitignore | ||
| bindgen_parameters | ||
| build_error.rs | ||
| compiler_builtins.rs | ||
| exports.c | ||
| helpers.c | ||
| Makefile | ||