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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); | |
a0939b89 | 62 | abi_long do_syscall(CPUArchState *cpu_env, int num, abi_long arg1, |
3b249d26 PM |
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; | |
8905770b | 67 | G_NORETURN void cpu_loop(CPUArchState *env); |
892a4f6a | 68 | abi_long get_errno(abi_long ret); |
3b249d26 PM |
69 | const char *target_strerror(int err); |
70 | int get_osversion(void); | |
71 | void init_qemu_uname_release(void); | |
72 | void fork_start(void); | |
73 | void fork_end(int child); | |
74 | ||
75 | /** | |
76 | * probe_guest_base: | |
77 | * @image_name: the executable being loaded | |
78 | * @loaddr: the lowest fixed address in the executable | |
79 | * @hiaddr: the highest fixed address in the executable | |
80 | * | |
81 | * Creates the initial guest address space in the host memory space. | |
82 | * | |
83 | * If @loaddr == 0, then no address in the executable is fixed, | |
84 | * i.e. it is fully relocatable. In that case @hiaddr is the size | |
85 | * of the executable. | |
86 | * | |
87 | * This function will not return if a valid value for guest_base | |
88 | * cannot be chosen. On return, the executable loader can expect | |
89 | * | |
90 | * target_mmap(loaddr, hiaddr - loaddr, ...) | |
91 | * | |
92 | * to succeed. | |
93 | */ | |
94 | void probe_guest_base(const char *image_name, | |
95 | abi_ulong loaddr, abi_ulong hiaddr); | |
96 | ||
97 | /* syscall.c */ | |
98 | int host_to_target_waitstatus(int status); | |
99 | ||
100 | #ifdef TARGET_I386 | |
101 | /* vm86.c */ | |
102 | void save_v86_state(CPUX86State *env); | |
103 | void handle_vm86_trap(CPUX86State *env, int trapno); | |
104 | void handle_vm86_fault(CPUX86State *env); | |
105 | int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr); | |
106 | #elif defined(TARGET_SPARC64) | |
107 | void sparc64_set_context(CPUSPARCState *env); | |
108 | void sparc64_get_context(CPUSPARCState *env); | |
109 | #endif | |
110 | ||
111 | static inline int is_error(abi_long ret) | |
112 | { | |
113 | return (abi_ulong)ret >= (abi_ulong)(-4096); | |
114 | } | |
115 | ||
80f0fe3a | 116 | #if (TARGET_ABI_BITS == 32) && !defined(TARGET_ABI_MIPSN32) |
3b249d26 PM |
117 | static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) |
118 | { | |
ee3eb3a7 | 119 | #if TARGET_BIG_ENDIAN |
3b249d26 PM |
120 | return ((uint64_t)word0 << 32) | word1; |
121 | #else | |
122 | return ((uint64_t)word1 << 32) | word0; | |
123 | #endif | |
124 | } | |
80f0fe3a | 125 | #else /* TARGET_ABI_BITS == 32 && !defined(TARGET_ABI_MIPSN32) */ |
3b249d26 PM |
126 | static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) |
127 | { | |
128 | return word0; | |
129 | } | |
130 | #endif /* TARGET_ABI_BITS != 32 */ | |
131 | ||
132 | void print_termios(void *arg); | |
133 | ||
134 | /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */ | |
135 | #ifdef TARGET_ARM | |
a0939b89 | 136 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) |
3b249d26 | 137 | { |
0effdc29 | 138 | return cpu_env->eabi == 1; |
3b249d26 | 139 | } |
80f0fe3a | 140 | #elif defined(TARGET_MIPS) && defined(TARGET_ABI_MIPSO32) |
a0939b89 | 141 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) { return 1; } |
3b249d26 PM |
142 | #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) |
143 | /* | |
144 | * SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs | |
145 | * of registers which translates to the same as ARM/MIPS, because we start with | |
146 | * r3 as arg1 | |
147 | */ | |
a0939b89 | 148 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) { return 1; } |
3b249d26 PM |
149 | #elif defined(TARGET_SH4) |
150 | /* SH4 doesn't align register pairs, except for p{read,write}64 */ | |
a0939b89 | 151 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) |
3b249d26 PM |
152 | { |
153 | switch (num) { | |
154 | case TARGET_NR_pread64: | |
155 | case TARGET_NR_pwrite64: | |
156 | return 1; | |
157 | ||
158 | default: | |
159 | return 0; | |
160 | } | |
161 | } | |
162 | #elif defined(TARGET_XTENSA) | |
a0939b89 | 163 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) { return 1; } |
3b249d26 | 164 | #elif defined(TARGET_HEXAGON) |
a0939b89 | 165 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) { return 1; } |
3b249d26 | 166 | #else |
a0939b89 | 167 | static inline int regpairs_aligned(CPUArchState *cpu_env, int num) { return 0; } |
3b249d26 PM |
168 | #endif |
169 | ||
170 | /** | |
171 | * preexit_cleanup: housekeeping before the guest exits | |
172 | * | |
173 | * env: the CPU state | |
174 | * code: the exit code | |
175 | */ | |
176 | void preexit_cleanup(CPUArchState *env, int code); | |
177 | ||
178 | /* | |
179 | * Include target-specific struct and function definitions; | |
180 | * they may need access to the target-independent structures | |
181 | * above, so include them last. | |
182 | */ | |
183 | #include "target_cpu.h" | |
184 | #include "target_structs.h" | |
185 | ||
186 | #endif |