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Add Trusty OS as tier 3 target #103895

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Add Trusty OS as tier 3 target #103895

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dcd0c58
Add Trusty OS as tier 3 target
randomPoison Oct 13, 2022
f197145
Revert libstd support for Trusty
randomPoison Jan 31, 2023
12053c9
Address review feedback
randomPoison Jan 31, 2023
c7f8752
Update target maintainers list
randomPoison Jan 31, 2023
884f307
Update UI tests to include trusty
randomPoison Jan 31, 2023
43c1e77
Fix spec consistency issues for Trusty targets
randomPoison Feb 1, 2023
ab51f64
Fix spelling
randomPoison Feb 1, 2023
83369cd
Revert crt_static changes
randomPoison Feb 3, 2023
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1 change: 1 addition & 0 deletions compiler/rustc_target/src/spec/aarch64_unknown_trusty.rs
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Expand Up @@ -16,6 +16,7 @@ pub fn target() -> Target {
max_atomic_width: Some(128),
panic_strategy: PanicStrategy::Abort,
os: "trusty".into(),
position_independent_executables: true,
static_position_independent_executables: true,
crt_static_default: true,
crt_static_respected: false,
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1 change: 1 addition & 0 deletions compiler/rustc_target/src/spec/armv7_unknown_trusty.rs
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Expand Up @@ -24,6 +24,7 @@ pub fn target() -> Target {
crt_static_respected: false,
relro_level: RelroLevel::Full,
panic_strategy: PanicStrategy::Abort,
position_independent_executables: true,
static_position_independent_executables: true,

..Default::default()
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5 changes: 3 additions & 2 deletions compiler/rustc_target/src/spec/tests/tests_impl.rs
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Expand Up @@ -143,8 +143,9 @@ impl Target {
assert!(self.executables);
}

// Check crt static stuff
if self.crt_static_default || self.crt_static_allows_dylibs {
// Check crt static stuff. Trusy only supports crt static and so does not enable
// `crt_static_respected`.
if (self.crt_static_default || self.crt_static_allows_dylibs) && self.os != "trusty" {
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How do other crt static only targets handle this?

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As far as I can tell, it looks like the other targets that set crt_static_default: true are also setting crt_static_respected: true. I'm not sure what other targets do crt static-only the way we do for Trusty, but based on the consistency check they'd all have to be setting crt_static_respected: true.

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Wasm32-wasi is an example of a target that only supports static linking of libc.

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Yup, and that target is using crt_static_respected: true. Should I switch back to doing it that way and revert the change to the test? That's how I originally had it, so I at least know that that configuration works for how we've been building Trusty.

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I guess.

assert!(self.crt_static_respected);
}
}
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