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redox: add makedev, major, minor, and fix dev_t #4928

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Merged
JohnTitor merged 1 commit into from
Jan 17, 2026
Merged

redox: add makedev, major, minor, and fix dev_t #4928

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27 changes: 26 additions & 1 deletion src/unix/redox/mod.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -6,7 +6,7 @@ pub type blkcnt_t = c_ulong;
pub type blksize_t = c_long;
pub type clock_t = c_long;
pub type clockid_t = c_int;
pub type dev_t = c_long;
pub type dev_t = c_ulonglong;
pub type fsblkcnt_t = c_ulong;
pub type fsfilcnt_t = c_ulong;
pub type ino_t = c_ulonglong;
Expand Down Expand Up @@ -1162,6 +1162,31 @@ safe_f! {
pub const fn WCOREDUMP(status: c_int) -> bool {
(status & 0x80) != 0
}

pub const fn makedev(major: c_uint, minor: c_uint) -> dev_t {
let major = major as dev_t;
let minor = minor as dev_t;
let mut dev = 0;
dev |= (major & 0x00000fff) << 8;
dev |= (major & 0xfffff000) << 32;
dev |= (minor & 0x000000ff) << 0;
dev |= (minor & 0xffffff00) << 12;
dev
}

pub const fn major(dev: dev_t) -> c_uint {
let mut major = 0;
major |= (dev & 0x00000000000fff00) >> 8;
major |= (dev & 0xfffff00000000000) >> 32;
major as c_uint
}

pub const fn minor(dev: dev_t) -> c_uint {
let mut minor = 0;
minor |= (dev & 0x00000000000000ff) >> 0;
minor |= (dev & 0x00000ffffff00000) >> 12;
minor as c_uint
}
}

extern "C" {
Expand Down