Go does hardcode system call numbers on Linux, but it doesn't on Windows. Instead it follows the normal Windows convention of calling the userspace wrappers from kernel32.dll and similar libraries.
Unlike on Linux, the low-level syscall numbers on the NT kernel are highly unstable across releases, so programs that try to call them directly will generally only work on a very specific kernel version.
alt Hacker News
Go does hardcode system call numbers on Linux, but it doesn't on Windows. Instead it follows the normal Windows convention of calling the userspace wrappers from kernel32.dll and similar libraries.
https://cs.opensource.google/go/go/+/refs/tags/go1.25.6:src/...
Unlike on Linux, the low-level syscall numbers on the NT kernel are highly unstable across releases, so programs that try to call them directly will generally only work on a very specific kernel version.