34 lines
1.6 KiB
Rust
34 lines
1.6 KiB
Rust
use crate::spec::{LinkerFlavor, TargetOptions};
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pub fn opts() -> TargetOptions {
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let mut base = super::linux_base::opts();
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// Make sure that the linker/gcc really don't pull in anything, including
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// default objects, libs, etc.
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base.pre_link_args_crt.insert(LinkerFlavor::Gcc, Vec::new());
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base.pre_link_args_crt.get_mut(&LinkerFlavor::Gcc).unwrap().push("-nostdlib".to_string());
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// At least when this was tested, the linker would not add the
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// `GNU_EH_FRAME` program header to executables generated, which is required
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// when unwinding to locate the unwinding information. I'm not sure why this
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// argument is *not* necessary for normal builds, but it can't hurt!
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base.pre_link_args.get_mut(&LinkerFlavor::Gcc).unwrap().push("-Wl,--eh-frame-hdr".to_string());
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// When generating a statically linked executable there's generally some
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// small setup needed which is listed in these files. These are provided by
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// a musl toolchain and are linked by default by the `musl-gcc` script. Note
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// that `gcc` also does this by default, it just uses some different files.
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//
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// Each target directory for musl has these object files included in it so
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// they'll be included from there.
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base.pre_link_objects_exe_crt.push("crt1.o".to_string());
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base.pre_link_objects_exe_crt.push("crti.o".to_string());
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base.post_link_objects_crt.push("crtn.o".to_string());
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// These targets statically link libc by default
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base.crt_static_default = true;
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// These targets allow the user to choose between static and dynamic linking.
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base.crt_static_respected = true;
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base
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}
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