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3b249d26 PM |
1 | /* |
2 | * user-internals.h: prototypes etc internal to the linux-user implementation | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License as published by | |
6 | * the Free Software Foundation; either version 2 of the License, or | |
7 | * (at your option) any later version. | |
8 | * | |
9 | * This program is distributed in the hope that it will be useful, | |
10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
12 | * GNU General Public License for more details. | |
13 | * | |
14 | * You should have received a copy of the GNU General Public License | |
15 | * along with this program; if not, see <http://www.gnu.org/licenses/>. | |
16 | */ | |
17 | ||
18 | #ifndef LINUX_USER_USER_INTERNALS_H | |
19 | #define LINUX_USER_USER_INTERNALS_H | |
20 | ||
3b249d26 | 21 | #include "exec/user/thunk.h" |
d0a7920e PM |
22 | #include "exec/exec-all.h" |
23 | #include "qemu/log.h" | |
3b249d26 PM |
24 | |
25 | extern char *exec_path; | |
26 | void init_task_state(TaskState *ts); | |
27 | void task_settid(TaskState *); | |
28 | void stop_all_tasks(void); | |
29 | extern const char *qemu_uname_release; | |
30 | extern unsigned long mmap_min_addr; | |
31 | ||
32 | typedef struct IOCTLEntry IOCTLEntry; | |
33 | ||
34 | typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp, | |
35 | int fd, int cmd, abi_long arg); | |
36 | ||
37 | struct IOCTLEntry { | |
38 | int target_cmd; | |
39 | unsigned int host_cmd; | |
40 | const char *name; | |
41 | int access; | |
42 | do_ioctl_fn *do_ioctl; | |
43 | const argtype arg_type[5]; | |
44 | }; | |
45 | ||
46 | extern IOCTLEntry ioctl_entries[]; | |
47 | ||
48 | #define IOC_R 0x0001 | |
49 | #define IOC_W 0x0002 | |
50 | #define IOC_RW (IOC_R | IOC_W) | |
51 | ||
52 | /* | |
53 | * Returns true if the image uses the FDPIC ABI. If this is the case, | |
54 | * we have to provide some information (loadmap, pt_dynamic_info) such | |
55 | * that the program can be relocated adequately. This is also useful | |
56 | * when handling signals. | |
57 | */ | |
58 | int info_is_fdpic(struct image_info *info); | |
59 | ||
60 | void target_set_brk(abi_ulong new_brk); | |
61 | void syscall_init(void); | |
62 | abi_long do_syscall(void *cpu_env, int num, abi_long arg1, | |
63 | abi_long arg2, abi_long arg3, abi_long arg4, | |
64 | abi_long arg5, abi_long arg6, abi_long arg7, | |
65 | abi_long arg8); | |
66 | extern __thread CPUState *thread_cpu; | |
f93d0af8 | 67 | void QEMU_NORETURN cpu_loop(CPUArchState *env); |
3b249d26 PM |
68 | const char *target_strerror(int err); |
69 | int get_osversion(void); | |
70 | void init_qemu_uname_release(void); | |
71 | void fork_start(void); | |
72 | void fork_end(int child); | |
73 | ||
74 | /** | |
75 | * probe_guest_base: | |
76 | * @image_name: the executable being loaded | |
77 | * @loaddr: the lowest fixed address in the executable | |
78 | * @hiaddr: the highest fixed address in the executable | |
79 | * | |
80 | * Creates the initial guest address space in the host memory space. | |
81 | * | |
82 | * If @loaddr == 0, then no address in the executable is fixed, | |
83 | * i.e. it is fully relocatable. In that case @hiaddr is the size | |
84 | * of the executable. | |
85 | * | |
86 | * This function will not return if a valid value for guest_base | |
87 | * cannot be chosen. On return, the executable loader can expect | |
88 | * | |
89 | * target_mmap(loaddr, hiaddr - loaddr, ...) | |
90 | * | |
91 | * to succeed. | |
92 | */ | |
93 | void probe_guest_base(const char *image_name, | |
94 | abi_ulong loaddr, abi_ulong hiaddr); | |
95 | ||
96 | /* syscall.c */ | |
97 | int host_to_target_waitstatus(int status); | |
98 | ||
99 | #ifdef TARGET_I386 | |
100 | /* vm86.c */ | |
101 | void save_v86_state(CPUX86State *env); | |
102 | void handle_vm86_trap(CPUX86State *env, int trapno); | |
103 | void handle_vm86_fault(CPUX86State *env); | |
104 | int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr); | |
105 | #elif defined(TARGET_SPARC64) | |
106 | void sparc64_set_context(CPUSPARCState *env); | |
107 | void sparc64_get_context(CPUSPARCState *env); | |
108 | #endif | |
109 | ||
110 | static inline int is_error(abi_long ret) | |
111 | { | |
112 | return (abi_ulong)ret >= (abi_ulong)(-4096); | |
113 | } | |
114 | ||
80f0fe3a | 115 | #if (TARGET_ABI_BITS == 32) && !defined(TARGET_ABI_MIPSN32) |
3b249d26 PM |
116 | static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) |
117 | { | |
118 | #ifdef TARGET_WORDS_BIGENDIAN | |
119 | return ((uint64_t)word0 << 32) | word1; | |
120 | #else | |
121 | return ((uint64_t)word1 << 32) | word0; | |
122 | #endif | |
123 | } | |
80f0fe3a | 124 | #else /* TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32) */ |
3b249d26 PM |
125 | static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) |
126 | { | |
127 | return word0; | |
128 | } | |
129 | #endif /* TARGET_ABI_BITS != 32 */ | |
130 | ||
131 | void print_termios(void *arg); | |
132 | ||
133 | /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */ | |
134 | #ifdef TARGET_ARM | |
135 | static inline int regpairs_aligned(void *cpu_env, int num) | |
136 | { | |
137 | return ((((CPUARMState *)cpu_env)->eabi) == 1) ; | |
138 | } | |
80f0fe3a | 139 | #elif defined(TARGET_MIPS) && defined(TARGET_ABI_MIPSO32) |
3b249d26 PM |
140 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } |
141 | #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) | |
142 | /* | |
143 | * SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs | |
144 | * of registers which translates to the same as ARM/MIPS, because we start with | |
145 | * r3 as arg1 | |
146 | */ | |
147 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } | |
148 | #elif defined(TARGET_SH4) | |
149 | /* SH4 doesn't align register pairs, except for p{read,write}64 */ | |
150 | static inline int regpairs_aligned(void *cpu_env, int num) | |
151 | { | |
152 | switch (num) { | |
153 | case TARGET_NR_pread64: | |
154 | case TARGET_NR_pwrite64: | |
155 | return 1; | |
156 | ||
157 | default: | |
158 | return 0; | |
159 | } | |
160 | } | |
161 | #elif defined(TARGET_XTENSA) | |
162 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } | |
163 | #elif defined(TARGET_HEXAGON) | |
164 | static inline int regpairs_aligned(void *cpu_env, int num) { return 1; } | |
165 | #else | |
166 | static inline int regpairs_aligned(void *cpu_env, int num) { return 0; } | |
167 | #endif | |
168 | ||
169 | /** | |
170 | * preexit_cleanup: housekeeping before the guest exits | |
171 | * | |
172 | * env: the CPU state | |
173 | * code: the exit code | |
174 | */ | |
175 | void preexit_cleanup(CPUArchState *env, int code); | |
176 | ||
177 | /* | |
178 | * Include target-specific struct and function definitions; | |
179 | * they may need access to the target-independent structures | |
180 | * above, so include them last. | |
181 | */ | |
182 | #include "target_cpu.h" | |
183 | #include "target_structs.h" | |
184 | ||
185 | #endif |