/* * 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, see <http://www.gnu.org/licenses/>. */ #if !defined(__DYNGEN_EXEC_H__) #define __DYNGEN_EXEC_H__ #include "qemu-common.h" #ifdef __OpenBSD__ #include <sys/types.h> #endif /* XXX: This may be wrong for 64-bit ILP32 hosts. */ typedef void * host_reg_t; #if defined(__i386__) #define AREG0 "ebp" #elif defined(__x86_64__) #define AREG0 "r14" #elif defined(_ARCH_PPC) #define AREG0 "r27" #elif defined(__arm__) #define AREG0 "r7" #elif defined(__hppa__) #define AREG0 "r17" #elif defined(__mips__) #define AREG0 "s0" #elif defined(__sparc__) #ifdef CONFIG_SOLARIS #define AREG0 "g2" #else #ifdef __sparc_v9__ #define AREG0 "g5" #else #define AREG0 "g6" #endif #endif #elif defined(__s390__) #define AREG0 "r10" #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" #elif defined(__mc68000) #define AREG0 "%a5" #elif defined(__ia64__) #define AREG0 "r7" #else #error unsupported CPU #endif register CPUState *env asm(AREG0); #define xglue(x, y) x ## y #define glue(x, y) xglue(x, y) #define stringify(s) tostring(s) #define tostring(s) #s /* The return address may point to the start of the next instruction. Subtracting one gets us the call instruction itself. */ #if defined(__s390__) && !defined(__s390x__) # 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__) */