btfixup.h
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上传日期:2013-02-24
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- /* $Id: btfixup.h,v 1.4 1998/03/09 14:04:43 jj Exp $
- * asm-sparc/btfixup.h: Macros for boot time linking.
- *
- * Copyright (C) 1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-
- #ifndef _SPARC_BTFIXUP_H
- #define _SPARC_BTFIXUP_H
- #include <linux/init.h>
- #ifndef __ASSEMBLY__
- #ifdef MODULE
- extern unsigned int ___illegal_use_of_BTFIXUP_SIMM13_in_module(void);
- extern unsigned int ___illegal_use_of_BTFIXUP_SETHI_in_module(void);
- extern unsigned int ___illegal_use_of_BTFIXUP_HALF_in_module(void);
- extern unsigned int ___illegal_use_of_BTFIXUP_INT_in_module(void);
- #endif
- /* Fixup call xx */
- #define BTFIXUPDEF_CALL(__type, __name, __args...)
- extern __type ___f_##__name(__args);
- extern unsigned ___fs_##__name[3];
- #define BTFIXUPDEF_CALL_CONST(__type, __name, __args...)
- extern __type ___f_##__name(__args) __attribute__((const));
- extern unsigned ___fs_##__name[3];
- #define BTFIXUP_CALL(__name) ___f_##__name
- #define BTFIXUPDEF_BLACKBOX(__name)
- extern unsigned ___bs_##__name[2];
- #ifdef MODULE
- #define BTFIXUP_BLACKBOX(__name) ___illegal_use_of_BTFIXUP_BLACKBOX_in_module
- #else
- /* This must be written in assembly and present in a sethi */
- #define BTFIXUP_BLACKBOX(__name) ___b_##__name
- #endif
- /* Put bottom 13bits into some register variable */
- #define BTFIXUPDEF_SIMM13(__name)
- extern unsigned int ___sf_##__name(void) __attribute__((const));
- extern unsigned ___ss_##__name[2];
- extern __inline__ unsigned int ___sf_##__name(void) {
- unsigned int ret;
- __asm__ ("or %%g0, ___s_" #__name ", %0" : "=r"(ret));
- return ret;
- }
- #define BTFIXUPDEF_SIMM13_INIT(__name,__val)
- extern unsigned int ___sf_##__name(void) __attribute__((const));
- extern unsigned ___ss_##__name[2];
- extern __inline__ unsigned int ___sf_##__name(void) {
- unsigned int ret;
- __asm__ ("or %%g0, ___s_" #__name "__btset_" #__val ", %0" : "=r"(ret));
- return ret;
- }
- #ifdef MODULE
- #define BTFIXUP_SIMM13(__name) ___illegal_use_of_BTFIXUP_SIMM13_in_module()
- #else
- #define BTFIXUP_SIMM13(__name) ___sf_##__name()
- #endif
- /* Put either bottom 13 bits, or upper 22 bits into some register variable
- * (depending on the value, this will lead into sethi FIX, reg; or
- * mov FIX, reg; )
- */
- #define BTFIXUPDEF_HALF(__name)
- extern unsigned int ___af_##__name(void) __attribute__((const));
- extern unsigned ___as_##__name[2];
- extern __inline__ unsigned int ___af_##__name(void) {
- unsigned int ret;
- __asm__ ("or %%g0, ___a_" #__name ", %0" : "=r"(ret));
- return ret;
- }
- #define BTFIXUPDEF_HALF_INIT(__name,__val)
- extern unsigned int ___af_##__name(void) __attribute__((const));
- extern unsigned ___as_##__name[2];
- extern __inline__ unsigned int ___af_##__name(void) {
- unsigned int ret;
- __asm__ ("or %%g0, ___a_" #__name "__btset_" #__val ", %0" : "=r"(ret));
- return ret;
- }
- #ifdef MODULE
- #define BTFIXUP_HALF(__name) ___illegal_use_of_BTFIXUP_HALF_in_module()
- #else
- #define BTFIXUP_HALF(__name) ___af_##__name()
- #endif
- /* Put upper 22 bits into some register variable */
- #define BTFIXUPDEF_SETHI(__name)
- extern unsigned int ___hf_##__name(void) __attribute__((const));
- extern unsigned ___hs_##__name[2];
- extern __inline__ unsigned int ___hf_##__name(void) {
- unsigned int ret;
- __asm__ ("sethi %%hi(___h_" #__name "), %0" : "=r"(ret));
- return ret;
- }
- #define BTFIXUPDEF_SETHI_INIT(__name,__val)
- extern unsigned int ___hf_##__name(void) __attribute__((const));
- extern unsigned ___hs_##__name[2];
- extern __inline__ unsigned int ___hf_##__name(void) {
- unsigned int ret;
- __asm__ ("sethi %%hi(___h_" #__name "__btset_" #__val "), %0" :
- "=r"(ret));
- return ret;
- }
- #ifdef MODULE
- #define BTFIXUP_SETHI(__name) ___illegal_use_of_BTFIXUP_SETHI_in_module()
- #else
- #define BTFIXUP_SETHI(__name) ___hf_##__name()
- #endif
- /* Put a full 32bit integer into some register variable */
- #define BTFIXUPDEF_INT(__name)
- extern unsigned char ___i_##__name;
- extern unsigned ___is_##__name[2];
- #ifdef MODULE
- #define BTFIXUP_INT(__name) ___illegal_use_of_BTFIXUP_INT_in_module()
- #else
- #define BTFIXUP_INT(__name) ((unsigned int)&___i_##__name)
- #endif
- #define BTFIXUPCALL_NORM 0x00000000 /* Always call */
- #define BTFIXUPCALL_NOP 0x01000000 /* Possibly optimize to nop */
- #define BTFIXUPCALL_RETINT(i) (0x90102000|((i) & 0x1fff)) /* Possibly optimize to mov i, %o0 */
- #define BTFIXUPCALL_ORINT(i) (0x90122000|((i) & 0x1fff)) /* Possibly optimize to or %o0, i, %o0 */
- #define BTFIXUPCALL_RETO0 0x01000000 /* Return first parameter, actually a nop */
- #define BTFIXUPCALL_ANDNINT(i) (0x902a2000|((i) & 0x1fff)) /* Possibly optimize to andn %o0, i, %o0 */
- #define BTFIXUPCALL_SWAPO0O1 0xd27a0000 /* Possibly optimize to swap [%o0],%o1 */
- #define BTFIXUPCALL_SWAPO0G0 0xc07a0000 /* Possibly optimize to swap [%o0],%g0 */
- #define BTFIXUPCALL_SWAPG1G2 0xc4784000 /* Possibly optimize to swap [%g1],%g2 */
- #define BTFIXUPCALL_STG0O0 0xc0220000 /* Possibly optimize to st %g0,[%o0] */
- #define BTFIXUPCALL_STO1O0 0xd2220000 /* Possibly optimize to st %o1,[%o0] */
- #define BTFIXUPSET_CALL(__name, __addr, __insn)
- do {
- ___fs_##__name[0] |= 1;
- ___fs_##__name[1] = (unsigned long)__addr;
- ___fs_##__name[2] = __insn;
- } while (0)
-
- #define BTFIXUPSET_BLACKBOX(__name, __func)
- do {
- ___bs_##__name[0] |= 1;
- ___bs_##__name[1] = (unsigned long)__func;
- } while (0)
-
- #define BTFIXUPCOPY_CALL(__name, __from)
- do {
- ___fs_##__name[0] |= 1;
- ___fs_##__name[1] = ___fs_##__from[1];
- ___fs_##__name[2] = ___fs_##__from[2];
- } while (0)
-
- #define BTFIXUPSET_SIMM13(__name, __val)
- do {
- ___ss_##__name[0] |= 1;
- ___ss_##__name[1] = (unsigned)__val;
- } while (0)
-
- #define BTFIXUPCOPY_SIMM13(__name, __from)
- do {
- ___ss_##__name[0] |= 1;
- ___ss_##__name[1] = ___ss_##__from[1];
- } while (0)
-
- #define BTFIXUPSET_HALF(__name, __val)
- do {
- ___as_##__name[0] |= 1;
- ___as_##__name[1] = (unsigned)__val;
- } while (0)
-
- #define BTFIXUPCOPY_HALF(__name, __from)
- do {
- ___as_##__name[0] |= 1;
- ___as_##__name[1] = ___as_##__from[1];
- } while (0)
-
- #define BTFIXUPSET_SETHI(__name, __val)
- do {
- ___hs_##__name[0] |= 1;
- ___hs_##__name[1] = (unsigned)__val;
- } while (0)
-
- #define BTFIXUPCOPY_SETHI(__name, __from)
- do {
- ___hs_##__name[0] |= 1;
- ___hs_##__name[1] = ___hs_##__from[1];
- } while (0)
-
- #define BTFIXUPSET_INT(__name, __val)
- do {
- ___is_##__name[0] |= 1;
- ___is_##__name[1] = (unsigned)__val;
- } while (0)
-
- #define BTFIXUPCOPY_INT(__name, __from)
- do {
- ___is_##__name[0] |= 1;
- ___is_##__name[1] = ___is_##__from[1];
- } while (0)
-
- #define BTFIXUPVAL_CALL(__name)
- ((unsigned long)___fs_##__name[1])
-
- extern void btfixup(void);
- #else /* __ASSEMBLY__ */
- #define BTFIXUP_SETHI(__name) %hi(___h_ ## __name)
- #define BTFIXUP_SETHI_INIT(__name,__val) %hi(___h_ ## __name ## __btset_ ## __val)
- #endif /* __ASSEMBLY__ */
-
- #endif /* !(_SPARC_BTFIXUP_H) */