KSTK_REG 14 arch/x86/um/asm/processor.h #define KSTK_EIP(tsk) KSTK_REG(tsk, HOST_IP) KSTK_REG 15 arch/x86/um/asm/processor.h #define KSTK_ESP(tsk) KSTK_REG(tsk, HOST_SP) KSTK_REG 16 arch/x86/um/asm/processor.h #define KSTK_EBP(tsk) KSTK_REG(tsk, HOST_BP)