/* * 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__ /* prevent Solaris from trying to typedef FILE in gcc's include/floatingpoint.h which will conflict with the definition down below */ #ifdef __sun__ #define _FILEDEFED #endif /* 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; // Linux/Sparc64 defines uint64_t #if !(defined (__sparc_v9__) && defined(__linux__)) /* XXX may be done for all 64 bits targets ? */ #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) typedef unsigned long uint64_t; #else typedef unsigned long long uint64_t; #endif #endif /* if Solaris/__sun__, don't typedef int8_t, as it will be typedef'd prior to this and will cause an error in compliation, conflicting with /usr/include/sys/int_types.h, line 75 */ #ifndef __sun__ typedef signed char int8_t; #endif typedef signed short int16_t; typedef signed int int32_t; // Linux/Sparc64 defines int64_t #if !(defined (__sparc_v9__) && defined(__linux__)) #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) typedef signed long int64_t; #else typedef signed long long int64_t; #endif #endif /* XXX: This may be wrong for 64-bit ILP32 hosts. */ typedef void * host_reg_t; #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)) #ifdef _BSD typedef struct __sFILE FILE; #else typedef struct FILE FILE; #endif extern int fprintf(FILE *, const char *, ...); extern int fputs(const char *, FILE *); extern int printf(const char *, ...); #undef NULL #define NULL 0 #if defined(__i386__) #define AREG0 "ebp" #define AREG1 "ebx" #define AREG2 "esi" #define AREG3 "edi" #elif defined(__x86_64__) #define AREG0 "r14" #define AREG1 "r15" #define AREG2 "r12" #define AREG3 "r13" //#define AREG4 "rbp" //#define AREG5 "rbx" #elif defined(__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 #elif defined(__arm__) #define AREG0 "r7" #define AREG1 "r4" #define AREG2 "r5" #define AREG3 "r6" #elif defined(__hppa__) #define AREG0 "r17" #define AREG1 "r14" #define AREG2 "r15" #define AREG3 "r16" #elif defined(__mips__) #define AREG0 "fp" #define AREG1 "s0" #define AREG2 "s1" #define AREG3 "s2" #define AREG4 "s3" #define AREG5 "s4" #define AREG6 "s5" #define AREG7 "s6" #define AREG8 "s7" #elif defined(__sparc__) #ifdef HOST_SOLARIS #define AREG0 "g2" #define AREG1 "g3" #define AREG2 "g4" #define AREG3 "g5" #define AREG4 "g6" #else #ifdef __sparc_v9__ #define AREG0 "g1" #define AREG1 "g4" #define AREG2 "g5" #define AREG3 "g7" #else #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" #endif #endif #elif defined(__s390__) #define AREG0 "r10" #define AREG1 "r7" #define AREG2 "r8" #define AREG3 "r9" #elif defined(__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" #elif defined(__mc68000) #define AREG0 "%a5" #define AREG1 "%a4" #define AREG2 "%d7" #define AREG3 "%d6" #define AREG4 "%d5" #elif defined(__ia64__) #define AREG0 "r7" #define AREG1 "r4" #define AREG2 "r5" #define AREG3 "r6" #else #error unsupported CPU #endif /* force GCC to generate only one epilog at the end of the function */ #define FORCE_RET() __asm__ __volatile__("" : : : "memory"); #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 #if defined(__alpha__) || defined(__s390__) /* 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; }) #elif defined(__s390__) extern int __op_param1 __hidden; extern int __op_param2 __hidden; extern int __op_param3 __hidden; #define PARAM1 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param1) "; l %0,0(%0)" : "=r"(_r) : ); _r; }) #define PARAM2 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param2) "; l %0,0(%0)" : "=r"(_r) : ); _r; }) #define PARAM3 ({ int _r; asm("bras %0,8; .long " ASM_NAME(__op_param3) "; l %0,0(%0)" : "=r"(_r) : ); _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; #if defined(_WIN32) || defined(__APPLE__) #define ASM_NAME(x) "_" #x #else #define ASM_NAME(x) #x #endif #if defined(__i386__) #define EXIT_TB() asm volatile ("ret") #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n) #elif defined(__x86_64__) #define EXIT_TB() asm volatile ("ret") #define GOTO_LABEL_PARAM(n) asm volatile ("jmp " ASM_NAME(__op_gen_label) #n) #elif defined(__powerpc__) #define EXIT_TB() asm volatile ("blr") #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n) #elif defined(__s390__) #define EXIT_TB() asm volatile ("br %r14") #define GOTO_LABEL_PARAM(n) asm volatile ("larl %r7,12; l %r7,0(%r7); br %r7; .long " ASM_NAME(__op_gen_label) #n) #elif defined(__alpha__) #define EXIT_TB() asm volatile ("ret") #elif defined(__ia64__) #define EXIT_TB() asm volatile ("br.ret.sptk.many b0;;") #define GOTO_LABEL_PARAM(n) asm volatile ("br.sptk.many " \ ASM_NAME(__op_gen_label) #n) #elif defined(__sparc__) #define EXIT_TB() asm volatile ("jmpl %i0 + 8, %g0; nop") #define GOTO_LABEL_PARAM(n) asm volatile ("ba " ASM_NAME(__op_gen_label) #n ";nop") #elif defined(__arm__) #define EXIT_TB() asm volatile ("b exec_loop") #define GOTO_LABEL_PARAM(n) asm volatile ("b " ASM_NAME(__op_gen_label) #n) #elif defined(__mc68000) #define EXIT_TB() asm volatile ("rts") #elif defined(__mips__) #define EXIT_TB() asm volatile ("jr $ra") #define GOTO_LABEL_PARAM(n) asm volatile (".set noat; la $1, " ASM_NAME(__op_gen_label) #n "; jr $1; .set at") #elif defined(__hppa__) #define GOTO_LABEL_PARAM(n) asm volatile ("b,n " ASM_NAME(__op_gen_label) #n) #else #error unsupported CPU #endif /* The return address may point to the start of the next instruction. Subtracting one gets us the call instruction itself. */ #if defined(__s390__) # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1)) #elif defined(__arm__) /* Thumb return addresses have the low bit set, so we need to subtract two. This is still safe in ARM mode because instructions are 4 bytes. */ # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2)) #else # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1)) #endif #endif /* !defined(__DYNGEN_EXEC_H__) */