/* * dyngen defines for micro operation code * * Copyright (c) 2003 Fabrice Bellard * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #if !defined(__DYNGEN_EXEC_H__) #define __DYNGEN_EXEC_H__ /* NOTE: standard headers should be used with special care at this point because host CPU registers are used as global variables. Some host headers do not allow that. */ #include <stddef.h> typedef unsigned char uint8_t; typedef unsigned short uint16_t; typedef unsigned int uint32_t; /* XXX may be done for all 64 bits targets ? */ #if defined (__x86_64__) typedef unsigned long uint64_t; #else typedef unsigned long long uint64_t; #endif typedef signed char int8_t; typedef signed short int16_t; typedef signed int int32_t; #if defined (__x86_64__) typedef signed long int64_t; #else typedef signed long long int64_t; #endif #define INT8_MIN (-128) #define INT16_MIN (-32767-1) #define INT32_MIN (-2147483647-1) #define INT64_MIN (-(int64_t)(9223372036854775807)-1) #define INT8_MAX (127) #define INT16_MAX (32767) #define INT32_MAX (2147483647) #define INT64_MAX ((int64_t)(9223372036854775807)) #define UINT8_MAX (255) #define UINT16_MAX (65535) #define UINT32_MAX (4294967295U) #define UINT64_MAX ((uint64_t)(18446744073709551615)) typedef struct FILE FILE; extern int fprintf(FILE *, const char *, ...); extern int printf(const char *, ...); #undef NULL #define NULL 0 #if defined(_BSD) && !defined(__APPLE__) #include <ieeefp.h> #define FE_TONEAREST FP_RN #define FE_DOWNWARD FP_RM #define FE_UPWARD FP_RP #define FE_TOWARDZERO FP_RZ #define fesetround(x) fpsetround(x) #else #include <fenv.h> #endif #ifdef __i386__ #define AREG0 "ebp" #define AREG1 "ebx" #define AREG2 "esi" #define AREG3 "edi" #endif #ifdef __x86_64__ #define AREG0 "rbp" #define AREG1 "rbx" #define AREG2 "r12" #define AREG3 "r13" #define AREG4 "r14" #define AREG5 "r15" #endif #ifdef __powerpc__ #define AREG0 "r27" #define AREG1 "r24" #define AREG2 "r25" #define AREG3 "r26" /* XXX: suppress this hack */ #if defined(CONFIG_USER_ONLY) #define AREG4 "r16" #define AREG5 "r17" #define AREG6 "r18" #define AREG7 "r19" #define AREG8 "r20" #define AREG9 "r21" #define AREG10 "r22" #define AREG11 "r23" #endif #define USE_INT_TO_FLOAT_HELPERS #define BUGGY_GCC_DIV64 #endif #ifdef __arm__ #define AREG0 "r7" #define AREG1 "r4" #define AREG2 "r5" #define AREG3 "r6" #endif #ifdef __mips__ #define AREG0 "s3" #define AREG1 "s0" #define AREG2 "s1" #define AREG3 "s2" #endif #ifdef __sparc__ #define AREG0 "g6" #define AREG1 "g1" #define AREG2 "g2" #define AREG3 "g3" #define AREG4 "l0" #define AREG5 "l1" #define AREG6 "l2" #define AREG7 "l3" #define AREG8 "l4" #define AREG9 "l5" #define AREG10 "l6" #define AREG11 "l7" #define USE_FP_CONVERT #endif #ifdef __s390__ #define AREG0 "r10" #define AREG1 "r7" #define AREG2 "r8" #define AREG3 "r9" #endif #ifdef __alpha__ /* Note $15 is the frame pointer, so anything in op-i386.c that would require a frame pointer, like alloca, would probably loose. */ #define AREG0 "$15" #define AREG1 "$9" #define AREG2 "$10" #define AREG3 "$11" #define AREG4 "$12" #define AREG5 "$13" #define AREG6 "$14" #endif #ifdef __mc68000 #define AREG0 "%a5" #define AREG1 "%a4" #define AREG2 "%d7" #define AREG3 "%d6" #define AREG4 "%d5" #endif #ifdef __ia64__ #define AREG0 "r27" #define AREG1 "r24" #define AREG2 "r25" #define AREG3 "r26" #endif /* force GCC to generate only one epilog at the end of the function */ #define FORCE_RET() asm volatile (""); #ifndef OPPROTO #define OPPROTO #endif #define xglue(x, y) x ## y #define glue(x, y) xglue(x, y) #define stringify(s) tostring(s) #define tostring(s) #s #ifdef __alpha__ /* the symbols are considered non exported so a br immediate is generated */ #define __hidden __attribute__((visibility("hidden"))) #else #define __hidden #endif #if defined(__alpha__) /* Suggested by Richard Henderson. This will result in code like ldah $0,__op_param1($29) !gprelhigh lda $0,__op_param1($0) !gprellow We can then conveniently change $29 to $31 and adapt the offsets to emit the appropriate constant. */ extern int __op_param1 __hidden; extern int __op_param2 __hidden; extern int __op_param3 __hidden; #define PARAM1 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param1)); _r; }) #define PARAM2 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param2)); _r; }) #define PARAM3 ({ int _r; asm("" : "=r"(_r) : "0" (&__op_param3)); _r; }) #else #if defined(__APPLE__) static int __op_param1, __op_param2, __op_param3; #else extern int __op_param1, __op_param2, __op_param3; #endif #define PARAM1 ((long)(&__op_param1)) #define PARAM2 ((long)(&__op_param2)) #define PARAM3 ((long)(&__op_param3)) #endif /* !defined(__alpha__) */ extern int __op_jmp0, __op_jmp1, __op_jmp2, __op_jmp3; #ifdef __i386__ #define EXIT_TB() asm volatile ("ret") #endif #ifdef __x86_64__ #define EXIT_TB() asm volatile ("ret") #endif #ifdef __powerpc__ #define EXIT_TB() asm volatile ("blr") #endif #ifdef __s390__ #define EXIT_TB() asm volatile ("br %r14") #endif #ifdef __alpha__ #define EXIT_TB() asm volatile ("ret") #endif #ifdef __ia64__ #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;") #endif #ifdef __sparc__ #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0\n" \ "nop") #endif #ifdef __arm__ #define EXIT_TB() asm volatile ("b exec_loop") #endif #ifdef __mc68000 #define EXIT_TB() asm volatile ("rts") #endif #endif /* !defined(__DYNGEN_EXEC_H__) */