auto import from //depot/cupcake/@135843

1 files changed, 305 insertions, 0 deletions

diff --git a/dyngen-exec.h b/dyngen-exec.h
new file mode 100644
index 0000000..9260b6f
--- /dev/null
+++ b/dyngen-exec.h
@@ -0,0 +1,305 @@
+/*
+ *  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__) */