| /* |
| * 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> |
| |
| #ifdef __OpenBSD__ |
| #include <sys/types.h> |
| #else |
| 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__)) && !(defined(__APPLE__) && defined(__x86_64__)) |
| /* XXX may be done for all 64 bits targets ? */ |
| #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) || defined(__powerpc64__) |
| 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__)) && !(defined(__APPLE__) && defined(__x86_64__)) |
| #if defined (__x86_64__) || defined(__ia64) || defined(__s390x__) || defined(__alpha__) || defined(__powerpc64__) |
| typedef signed long int64_t; |
| #else |
| typedef signed long long int64_t; |
| #endif |
| #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 "g5" |
| #define AREG1 "g6" |
| #define AREG2 "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__) */ |
