diff options
Diffstat (limited to 'vendor/rustix-0.37.6/src/backend/libc/fs/makedev.rs')
-rw-r--r-- | vendor/rustix-0.37.6/src/backend/libc/fs/makedev.rs | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/vendor/rustix-0.37.6/src/backend/libc/fs/makedev.rs b/vendor/rustix-0.37.6/src/backend/libc/fs/makedev.rs new file mode 100644 index 000000000..afe942a59 --- /dev/null +++ b/vendor/rustix-0.37.6/src/backend/libc/fs/makedev.rs @@ -0,0 +1,120 @@ +#[cfg(not(all(target_os = "android", target_pointer_width = "32")))] +use super::super::c; +use crate::fs::Dev; + +#[cfg(not(any( + apple, + target_os = "aix", + target_os = "android", + target_os = "emscripten", +)))] +#[inline] +pub(crate) fn makedev(maj: u32, min: u32) -> Dev { + 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, + netbsdlike, + target_os = "android", + target_os = "emscripten", +)))] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + unsafe { c::major(dev) } +} + +#[cfg(all(target_os = "android", not(target_pointer_width = "32")))] +#[inline] +pub(crate) fn major(dev: Dev) -> u32 { + // Android's `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, + netbsdlike, + target_os = "android", + target_os = "emscripten", +)))] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + unsafe { c::minor(dev) } +} + +#[cfg(all(target_os = "android", not(target_pointer_width = "32")))] +#[inline] +pub(crate) fn minor(dev: Dev) -> u32 { + // Android's `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) } +} |