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Change shm_open() calling ABI on aarch64 Darwin #43516

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Merged
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Dec 31, 2021
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Change shm_open() calling ABI on aarch64 Darwin #43516

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12 changes: 9 additions & 3 deletions stdlib/SharedArrays/src/SharedArrays.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -693,9 +693,15 @@ function _shm_mmap_array(T, dims, shm_seg_name, mode)
end

shm_unlink(shm_seg_name) = ccall(:shm_unlink, Cint, (Cstring,), shm_seg_name)
shm_open(shm_seg_name, oflags, permissions) = ccall(:shm_open, Cint,
(Cstring, Cint, Base.Cmode_t), shm_seg_name, oflags, permissions)

function shm_open(shm_seg_name, oflags, permissions)
# On macOS, `shm_open()` is a variadic function, so to properly match
# calling ABI, we must declare our arguments as variadic as well.
@static if Sys.isapple()
return ccall(:shm_open, Cint, (Cstring, Cint, Base.Cmode_t...), shm_seg_name, oflags, permissions)
else
return ccall(:shm_open, Cint, (Cstring, Cint, Base.Cmode_t), shm_seg_name, oflags, permissions)
end
end
end # os-test

end # module