netbsd adding mcontext related data for riscv64 #3468
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r? @JohnTitor (rustbot has picked a reviewer for you, use r? to override) |
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☔ The latest upstream changes (presumably #3525) made this pull request unmergeable. Please resolve the merge conflicts. |
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Could you resolve conflicts and remove libc_union cfg? |
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| #[cfg(not(libc_union))] | ||
| pub __qregs: [u128; 1], |
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The main branch doesn't need cfg anymore.
| if #[cfg(libc_const_size_of)] { | ||
| #[doc(hidden)] | ||
| pub const _ALIGNBYTES: usize = ::mem::size_of::<::c_long>() - 1; | ||
| } else { | ||
| #[doc(hidden)] | ||
| pub const _ALIGNBYTES: usize = 8 - 1; | ||
| } |
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pub(crate) can be used I think.
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This probably needs a rebase at this point, but otherwise seems like it was waiting for review. @rustbot review |
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Can this just be moved to netbsd/mod.rs? I'm not sure what is platform-specific here, if you have a header link that would help. This should also get the semver test |
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well ucontext could possibly be make common but not mcontext which is very architecture dependent. |
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| impl PartialEq for __c_anonymous__fpreg { | ||
| fn eq(&self, other: &__c_anonymous__fpreg) -> bool { | ||
| unsafe { | ||
| self.u_u64 == other.u_u64 | ||
| || self.u_ud == other.u_ud | ||
| } | ||
| } | ||
| } | ||
| impl Eq for __c_anonymous__fpreg {} |
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These should probably just be dropped, it would be weird to use float equality to compare integers.
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@rustbot review |
| pub union __c_anonymous__fpreg { | ||
| pub u_u64: u64, | ||
| pub u_d: ::c_double, | ||
| } |
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Sorry, one other thing - should this just be called __fpreg? From https://github.com/NetBSD/src/blob/0465e5c825effb130eca95499f5ac6454fe0d5ab/sys/arch/riscv/include/mcontext.h#L44C7-L47.
It would probably also be good to define
pub const _NGREG: usize = 32;
pub const _NFREG: usize = 33;
pub type __gregset_t = [__greg_t; _NGREG];
pub type __fregset_t = [__fpreg; _NFREG];and then use those in mcontext
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tgross35
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ref: https://github.com/NetBSD/src/blob/0465e5c825effb130eca95499f5ac6454fe0d5ab/sys/arch/riscv/include/mcontext.h#L44 (backport <rust-lang#3468>) (cherry picked from commit fb52c7a)
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ref: https://github.com/NetBSD/src/blob/0465e5c825effb130eca95499f5ac6454fe0d5ab/sys/arch/riscv/include/mcontext.h#L44