Silence compiler warning in json test case
[qemu.git] / dyngen-exec.h
blob5bfef3f6fe1b7ea494e89a3c4ebfe544de26babe
1 /*
2 * dyngen defines for micro operation code
4 * Copyright (c) 2003 Fabrice Bellard
6 * This library is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU Lesser General Public
8 * License as published by the Free Software Foundation; either
9 * version 2 of the License, or (at your option) any later version.
11 * This library is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 * Lesser General Public License for more details.
16 * You should have received a copy of the GNU Lesser General Public
17 * License along with this library; if not, see <http://www.gnu.org/licenses/>.
19 #if !defined(__DYNGEN_EXEC_H__)
20 #define __DYNGEN_EXEC_H__
22 /* prevent Solaris from trying to typedef FILE in gcc's
23 include/floatingpoint.h which will conflict with the
24 definition down below */
25 #ifdef __sun__
26 #define _FILEDEFED
27 #endif
29 /* NOTE: standard headers should be used with special care at this
30 point because host CPU registers are used as global variables. Some
31 host headers do not allow that. */
32 #include <stddef.h>
33 #include <stdint.h>
34 #include <stdbool.h>
36 #ifdef __OpenBSD__
37 #include <sys/types.h>
38 #endif
40 /* XXX: This may be wrong for 64-bit ILP32 hosts. */
41 typedef void * host_reg_t;
43 #ifdef CONFIG_BSD
44 typedef struct __sFILE FILE;
45 #else
46 typedef struct FILE FILE;
47 #endif
48 extern int fprintf(FILE *, const char *, ...);
49 extern int fputs(const char *, FILE *);
50 extern int printf(const char *, ...);
52 #if defined(__i386__)
53 #define AREG0 "ebp"
54 #elif defined(__x86_64__)
55 #define AREG0 "r14"
56 #elif defined(_ARCH_PPC)
57 #define AREG0 "r27"
58 #elif defined(__arm__)
59 #define AREG0 "r7"
60 #elif defined(__hppa__)
61 #define AREG0 "r17"
62 #elif defined(__mips__)
63 #define AREG0 "s0"
64 #elif defined(__sparc__)
65 #ifdef CONFIG_SOLARIS
66 #define AREG0 "g2"
67 #else
68 #ifdef __sparc_v9__
69 #define AREG0 "g5"
70 #else
71 #define AREG0 "g6"
72 #endif
73 #endif
74 #elif defined(__s390__)
75 #define AREG0 "r10"
76 #elif defined(__alpha__)
77 /* Note $15 is the frame pointer, so anything in op-i386.c that would
78 require a frame pointer, like alloca, would probably loose. */
79 #define AREG0 "$15"
80 #elif defined(__mc68000)
81 #define AREG0 "%a5"
82 #elif defined(__ia64__)
83 #define AREG0 "r7"
84 #else
85 #error unsupported CPU
86 #endif
88 #define xglue(x, y) x ## y
89 #define glue(x, y) xglue(x, y)
90 #define stringify(s) tostring(s)
91 #define tostring(s) #s
93 /* The return address may point to the start of the next instruction.
94 Subtracting one gets us the call instruction itself. */
95 #if defined(__s390__) && !defined(__s390x__)
96 # define GETPC() ((void*)(((unsigned long)__builtin_return_address(0) & 0x7fffffffUL) - 1))
97 #elif defined(__arm__)
98 /* Thumb return addresses have the low bit set, so we need to subtract two.
99 This is still safe in ARM mode because instructions are 4 bytes. */
100 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 2))
101 #else
102 # define GETPC() ((void *)((unsigned long)__builtin_return_address(0) - 1))
103 #endif
105 #endif /* !defined(__DYNGEN_EXEC_H__) */