#ifndef __RTL_I386_CONSTANTS_H__#define __RTL_I386_CONSTANTS_H__#include <linux/config.h>#define MACHDEPREGS struct pt_regs typedef void intercept_t; /*intercept returns nothing */#define MACHDEPREGS_PTR(x) (&x)#define POS_TO_BIT(x) (1UL << x)#define ARCH_DEFINED_DISABLE 0#define ARCH_DEFINED_ENABLE 0x200#define IRQ_MAX_COUNT 256#ifdef CONFIG_X86_IO_APIC#define __LOCAL_IRQS__#endif#include <linux/smp.h>#ifdef CONFIG_SMP#define rtl_getcpuid() hw_smp_processor_id()#else#define rtl_getcpuid() smp_processor_id()#endif/* TODO  in rtl_intercept and rtl_local intercept there is no   need to have 3 copies of restore_all. The code should    simply goto a single block.   Also the ret_from _intr should be used in rtl_intercept as well.   No need to do the stupid return. And this address should be patched   into the code instead of being indirect jumped    */#define RESTORE_ALL\	"popl %%ebx;\n\t"	\	"popl %%ecx;\n\t"	\	"popl %%edx;\n\t"	\	"popl %%esi;\n\t"	\	"popl %%edi;\n\t"	\	"popl %%ebp;\n\t"	\	"popl %%eax;\n\t"	\"1:	popl %%ds;\n\t	"\"2:	popl %%es;\n\t	"\	"addl $4,%%esp;\n\t"	\"3:	iret;\n\t	"	/*  on an intercept, the linux return goes via ret_from_irq    but the RTLinux return just irets */#define RETURN_FROM_INTERRUPT_LINUX return#define RETURN_FROM_INTERRUPT \        { int i =  (int)&regs;\	__asm__ __volatile__("movl %0,%%esp\n\t" \			RESTORE_ALL : /* no output */ :"c" (i):"memory"); }#define RETURN_FROM_LOCAL RETURN_FROM_INTERRUPT #define RETURN_FROM_LOCAL_LINUX \        { int i =  (int)&regs;\	__asm__ __volatile__("movl %0,%%esp\n\t"\		         "jmp *local_ret_from_intr" \			: /* no output */ :"c" (i):"memory"); }	/* the PND numbers are between 0 and 31 and are used 	   in a bitmap of local interrupts */#define VECTOR_TO_LOCAL_PND_GET(r) VECTOR_TO_LOCAL_PND(r.orig_eax)#define VECTOR_TO_LOCAL_PND(x)  (((x) - 0xe8))#define MACHDEPREGS_TO_PND(x)  VECTOR_TO_LOCAL_PND(x.orig_eax)#define LOCAL_PND_TO_VECTOR(x)  (((x) + 0xe8))#define RTL_RESCHEDULE_VECTOR 0xEE/* the intercept function returns 1 if the trap is intercepted; * 0 means need to go through Linux code */extern int rtl_request_traps(int (*rtl_exception_intercept)(int vector, struct pt_regs *regs, int error_code));#endif  /* __RTL_I386_CONSTANTS_H__ */