Edit: /usr/include/asm/ucontext.h (339B)
#ifndef _ASM_X86_UCONTEXT_H
#define _ASM_X86_UCONTEXT_H
#define UC_FP_XSTATE 0x1 /* indicates the presence of extended state
* information in the memory layout pointed
* by the fpstate pointer in the ucontext's
* sigcontext struct (uc_mcontext).
*/
#include
#endif /* _ASM_X86_UCONTEXT_H */