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author | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
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committer | Valentin Popov <valentin@popov.link> | 2024-01-08 00:21:28 +0300 |
commit | 1b6a04ca5504955c571d1c97504fb45ea0befee4 (patch) | |
tree | 7579f518b23313e8a9748a88ab6173d5e030b227 /vendor/rustix/src/backend/libc/fs/makedev.rs | |
parent | 5ecd8cf2cba827454317368b68571df0d13d7842 (diff) | |
download | fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.tar.xz fparkan-1b6a04ca5504955c571d1c97504fb45ea0befee4.zip |
Initial vendor packages
Signed-off-by: Valentin Popov <valentin@popov.link>
Diffstat (limited to 'vendor/rustix/src/backend/libc/fs/makedev.rs')
-rw-r--r-- | vendor/rustix/src/backend/libc/fs/makedev.rs | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/vendor/rustix/src/backend/libc/fs/makedev.rs b/vendor/rustix/src/backend/libc/fs/makedev.rs new file mode 100644 index 0000000..aa12102 --- /dev/null +++ b/vendor/rustix/src/backend/libc/fs/makedev.rs @@ -0,0 +1,138 @@ +#[cfg(not(all(target_os = "android", target_pointer_width = "32")))] +use crate::backend::c; +use crate::fs::Dev; + +#[cfg(not(any( + apple, + solarish, + target_os = "aix", + target_os = "android", + target_os = "emscripten", +)))] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + c::makedev(maj, min) +} + +#[cfg(solarish)] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + // SAFETY: Solarish's `makedev` is marked unsafe but it isn't doing + // anything unsafe. + unsafe { c::makedev(maj, min) } +} + +#[cfg(all(target_os = "android", not(target_pointer_width = "32")))] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + c::makedev(maj, min) +} + +#[cfg(all(target_os = "android", target_pointer_width = "32"))] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do + // it ourselves. + ((u64::from(maj) & 0xffff_f000_u64) << 32) + | ((u64::from(maj) & 0x0000_0fff_u64) << 8) + | ((u64::from(min) & 0xffff_ff00_u64) << 12) + | (u64::from(min) & 0x0000_00ff_u64) +} + +#[cfg(target_os = "emscripten")] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + // Emscripten's `makedev` has a 32-bit return value. + Dev::from(c::makedev(maj, min)) +} + +#[cfg(apple)] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + // Apple's `makedev` oddly has signed argument types and is `unsafe`. + unsafe { c::makedev(maj as i32, min as i32) } +} + +#[cfg(target_os = "aix")] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + // AIX's `makedev` oddly is `unsafe`. + unsafe { c::makedev(maj, min) } +} + +#[cfg(not(any( + apple, + freebsdlike, + target_os = "android", + target_os = "emscripten", + target_os = "netbsd" +)))] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + unsafe { c::major(dev) } +} + +#[cfg(any( + apple, + freebsdlike, + target_os = "netbsd", + all(target_os = "android", not(target_pointer_width = "32")), +))] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + // On some platforms `major` oddly has signed return types. + (unsafe { c::major(dev) }) as u32 +} + +#[cfg(all(target_os = "android", target_pointer_width = "32"))] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do + // it ourselves. + (((dev >> 31 >> 1) & 0xffff_f000) | ((dev >> 8) & 0x0000_0fff)) as u32 +} + +#[cfg(target_os = "emscripten")] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + // Emscripten's `major` has a 32-bit argument value. + unsafe { c::major(dev as u32) } +} + +#[cfg(not(any( + apple, + freebsdlike, + target_os = "android", + target_os = "emscripten", + target_os = "netbsd" +)))] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + unsafe { c::minor(dev) } +} + +#[cfg(any( + apple, + freebsdlike, + target_os = "netbsd", + all(target_os = "android", not(target_pointer_width = "32")) +))] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + // On some platforms, `minor` oddly has signed return types. + (unsafe { c::minor(dev) }) as u32 +} + +#[cfg(all(target_os = "android", target_pointer_width = "32"))] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + // 32-bit Android's `dev_t` is 32-bit, but its `st_dev` is 64-bit, so we do + // it ourselves. + (((dev >> 12) & 0xffff_ff00) | (dev & 0x0000_00ff)) as u32 +} + +#[cfg(target_os = "emscripten")] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + // Emscripten's `minor` has a 32-bit argument value. + unsafe { c::minor(dev as u32) } +} |