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std.os.linux: Define timespec as kernel_timespec (64-bit) for riscv32.

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This is kind of a hack because the timespec in UAPI headers is actually still
32-bit while __kernel_timespec is 64-bit. But, importantly, all the syscalls
take __kernel_timespec from the get-go (because riscv32 support is so recent).

Defining our timespec this way will allow all the syscall wrappers in
std.os.linux to do the right thing for riscv32. For other 32-bit architectures,
we have to use the 64-bit time syscalls explicitly to solve the Y2038 problem.
This commit is contained in:
Alex Rønne Petersen 2024-06-26 02:48:03 +02:00
parent cafce8c767
commit 890433e292
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1 changed files with 3 additions and 2 deletions
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lib/std/os/linux.zig
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@ -6327,12 +6327,13 @@ pub const POSIX_FADV = switch (native_arch) {
};
/// The timespec struct used by the kernel.
pub const kernel_timespec = if (@sizeOf(usize) >= 8) timespec else extern struct {
pub const kernel_timespec = extern struct {
sec: i64,
nsec: i64,
};
pub const timespec = extern struct {
// https://github.com/ziglang/zig/issues/4726#issuecomment-2190337877
pub const timespec = if (!builtin.link_libc and native_arch == .riscv32) kernel_timespec else extern struct {
sec: isize,
nsec: isize,
};