mirror of
https://github.com/jart/cosmopolitan.git
synced 2025-02-07 15:03:34 +00:00
23 lines
705 B
C
23 lines
705 B
C
#ifndef COSMOPOLITAN_LIBC_NT_VERSION_H_
|
|
#define COSMOPOLITAN_LIBC_NT_VERSION_H_
|
|
#include "libc/nt/struct/osversioninfo.h"
|
|
#if !(__ASSEMBLER__ + __LINKER__ + 0)
|
|
COSMOPOLITAN_C_START_
|
|
|
|
bool IsAtLeastWindows10(void) pureconst;
|
|
bool32 GetVersionEx(struct NtOsVersionInfo *lpVersionInformation);
|
|
|
|
#if defined(__GCC_ASM_FLAG_OUTPUTS__) && !defined(__STRICT_ANSI__)
|
|
#define IsAtLeastWindows10() (GetNtMajorVersion() >= 10)
|
|
static pureconst inline unsigned char GetNtMajorVersion(void) {
|
|
uintptr_t _x;
|
|
asm("mov\t%%gs:96,%q0\r\n"
|
|
"mov\t280(%q0),%b0"
|
|
: "=q"(_x));
|
|
return _x;
|
|
}
|
|
#endif
|
|
|
|
COSMOPOLITAN_C_END_
|
|
#endif /* !(__ASSEMBLER__ + __LINKER__ + 0) */
|
|
#endif /* COSMOPOLITAN_LIBC_NT_VERSION_H_ */
|