Commit 890433e292

Alex Rønne Petersen <alex@alexrp.com>
2024-06-26 02:48:03
std.os.linux: Define timespec as kernel_timespec (64-bit) for riscv32.
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.
master
1 parent cafce8c
Changed files (1)
lib
std
os
linux.zig
lib/std/os/linux.zig
@@ -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,
 };