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e88de099 FB |
1 | #ifndef QEMU_H |
2 | #define QEMU_H | |
31e31b8a FB |
3 | |
4 | #include "thunk.h" | |
5 | ||
9de5e440 | 6 | #include <signal.h> |
edf779ff | 7 | #include <string.h> |
9de5e440 | 8 | #include "syscall_defs.h" |
31e31b8a | 9 | |
6180a181 FB |
10 | #include "cpu.h" |
11 | #include "syscall.h" | |
a04e134a | 12 | #include "target_signal.h" |
1fddef4b | 13 | #include "gdbstub.h" |
66fb9763 | 14 | |
31e31b8a FB |
15 | /* This struct is used to hold certain information about the image. |
16 | * Basically, it replicates in user space what would be certain | |
17 | * task_struct fields in the kernel | |
18 | */ | |
19 | struct image_info { | |
3d177870 JM |
20 | target_ulong load_addr; |
21 | target_ulong start_code; | |
22 | target_ulong end_code; | |
23 | target_ulong start_data; | |
24 | target_ulong end_data; | |
25 | target_ulong start_brk; | |
26 | target_ulong brk; | |
27 | target_ulong start_mmap; | |
28 | target_ulong mmap; | |
29 | target_ulong rss; | |
30 | target_ulong start_stack; | |
31 | target_ulong entry; | |
978efd6a PB |
32 | target_ulong code_offset; |
33 | target_ulong data_offset; | |
38d0662a | 34 | char **host_argv; |
31e31b8a FB |
35 | int personality; |
36 | }; | |
37 | ||
b346ff46 | 38 | #ifdef TARGET_I386 |
851e67a1 FB |
39 | /* Information about the current linux thread */ |
40 | struct vm86_saved_state { | |
41 | uint32_t eax; /* return code */ | |
42 | uint32_t ebx; | |
43 | uint32_t ecx; | |
44 | uint32_t edx; | |
45 | uint32_t esi; | |
46 | uint32_t edi; | |
47 | uint32_t ebp; | |
48 | uint32_t esp; | |
49 | uint32_t eflags; | |
50 | uint32_t eip; | |
51 | uint16_t cs, ss, ds, es, fs, gs; | |
52 | }; | |
b346ff46 | 53 | #endif |
851e67a1 | 54 | |
28c4f361 FB |
55 | #ifdef TARGET_ARM |
56 | /* FPU emulator */ | |
57 | #include "nwfpe/fpa11.h" | |
28c4f361 FB |
58 | #endif |
59 | ||
851e67a1 FB |
60 | /* NOTE: we force a big alignment so that the stack stored after is |
61 | aligned too */ | |
62 | typedef struct TaskState { | |
63 | struct TaskState *next; | |
28c4f361 FB |
64 | #ifdef TARGET_ARM |
65 | /* FPA state */ | |
66 | FPA11 fpa; | |
a4f81979 | 67 | int swi_errno; |
28c4f361 | 68 | #endif |
84409ddb | 69 | #if defined(TARGET_I386) && !defined(TARGET_X86_64) |
53a5960a | 70 | target_ulong target_v86; |
851e67a1 | 71 | struct vm86_saved_state vm86_saved_regs; |
b333af06 | 72 | struct target_vm86plus_struct vm86plus; |
631271d7 FB |
73 | uint32_t v86flags; |
74 | uint32_t v86mask; | |
e6e5906b PB |
75 | #endif |
76 | #ifdef TARGET_M68K | |
77 | int sim_syscalls; | |
a87295e8 PB |
78 | #endif |
79 | #if defined(TARGET_ARM) || defined(TARGET_M68K) | |
80 | /* Extra fields for semihosted binaries. */ | |
81 | uint32_t stack_base; | |
82 | uint32_t heap_base; | |
83 | uint32_t heap_limit; | |
b346ff46 | 84 | #endif |
851e67a1 | 85 | int used; /* non zero if used */ |
978efd6a | 86 | struct image_info *info; |
851e67a1 FB |
87 | uint8_t stack[0]; |
88 | } __attribute__((aligned(16))) TaskState; | |
89 | ||
90 | extern TaskState *first_task_state; | |
c5937220 | 91 | extern const char *qemu_uname_release; |
851e67a1 | 92 | |
e5fe0c52 PB |
93 | /* ??? See if we can avoid exposing so much of the loader internals. */ |
94 | /* | |
95 | * MAX_ARG_PAGES defines the number of pages allocated for arguments | |
96 | * and envelope for the new program. 32 should suffice, this gives | |
97 | * a maximum env+arg of 128kB w/4KB pages! | |
98 | */ | |
99 | #define MAX_ARG_PAGES 32 | |
100 | ||
101 | /* | |
5fafdf24 | 102 | * This structure is used to hold the arguments that are |
e5fe0c52 PB |
103 | * used when loading binaries. |
104 | */ | |
105 | struct linux_binprm { | |
106 | char buf[128]; | |
107 | void *page[MAX_ARG_PAGES]; | |
3d177870 | 108 | target_ulong p; |
e5fe0c52 PB |
109 | int fd; |
110 | int e_uid, e_gid; | |
111 | int argc, envc; | |
112 | char **argv; | |
113 | char **envp; | |
114 | char * filename; /* Name of binary */ | |
115 | }; | |
116 | ||
117 | void do_init_thread(struct target_pt_regs *regs, struct image_info *infop); | |
118 | target_ulong loader_build_argptr(int envc, int argc, target_ulong sp, | |
119 | target_ulong stringp, int push_ptr); | |
5fafdf24 | 120 | int loader_exec(const char * filename, char ** argv, char ** envp, |
01ffc75b | 121 | struct target_pt_regs * regs, struct image_info *infop); |
31e31b8a | 122 | |
e5fe0c52 PB |
123 | int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, |
124 | struct image_info * info); | |
125 | int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs, | |
126 | struct image_info * info); | |
cb33da57 BS |
127 | #ifdef TARGET_HAS_ELFLOAD32 |
128 | int load_elf_binary_multi(struct linux_binprm *bprm, | |
129 | struct target_pt_regs *regs, | |
130 | struct image_info *info); | |
131 | #endif | |
e5fe0c52 PB |
132 | |
133 | void memcpy_to_target(target_ulong dest, const void *src, | |
134 | unsigned long len); | |
53a5960a | 135 | void target_set_brk(target_ulong new_brk); |
32407103 | 136 | target_long do_brk(target_ulong new_brk); |
31e31b8a | 137 | void syscall_init(void); |
32407103 JM |
138 | target_long do_syscall(void *cpu_env, int num, target_long arg1, |
139 | target_long arg2, target_long arg3, target_long arg4, | |
140 | target_long arg5, target_long arg6); | |
31e31b8a | 141 | void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2))); |
b346ff46 FB |
142 | extern CPUState *global_env; |
143 | void cpu_loop(CPUState *env); | |
32ce6337 FB |
144 | void init_paths(const char *prefix); |
145 | const char *path(const char *pathname); | |
6977fbfd FB |
146 | |
147 | extern int loglevel; | |
631271d7 FB |
148 | extern FILE *logfile; |
149 | ||
b346ff46 FB |
150 | /* signal.c */ |
151 | void process_pending_signals(void *cpu_env); | |
152 | void signal_init(void); | |
153 | int queue_signal(int sig, target_siginfo_t *info); | |
154 | void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info); | |
155 | void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo); | |
156 | long do_sigreturn(CPUState *env); | |
157 | long do_rt_sigreturn(CPUState *env); | |
a04e134a TS |
158 | int do_sigaltstack(const struct target_sigaltstack *uss, |
159 | struct target_sigaltstack *uoss, | |
160 | target_ulong sp); | |
b346ff46 FB |
161 | |
162 | #ifdef TARGET_I386 | |
631271d7 FB |
163 | /* vm86.c */ |
164 | void save_v86_state(CPUX86State *env); | |
447db213 | 165 | void handle_vm86_trap(CPUX86State *env, int trapno); |
631271d7 | 166 | void handle_vm86_fault(CPUX86State *env); |
53a5960a | 167 | int do_vm86(CPUX86State *env, long subfunction, target_ulong v86_addr); |
5bfb56b2 BS |
168 | #elif defined(TARGET_SPARC64) |
169 | void sparc64_set_context(CPUSPARCState *env); | |
170 | void sparc64_get_context(CPUSPARCState *env); | |
b346ff46 | 171 | #endif |
631271d7 | 172 | |
54936004 | 173 | /* mmap.c */ |
53a5960a | 174 | int target_mprotect(target_ulong start, target_ulong len, int prot); |
a5b85f79 | 175 | target_long target_mmap(target_ulong start, target_ulong len, int prot, |
53a5960a PB |
176 | int flags, int fd, target_ulong offset); |
177 | int target_munmap(target_ulong start, target_ulong len); | |
a5b85f79 | 178 | target_long target_mremap(target_ulong old_addr, target_ulong old_size, |
53a5960a PB |
179 | target_ulong new_size, unsigned long flags, |
180 | target_ulong new_addr); | |
181 | int target_msync(target_ulong start, target_ulong len, int flags); | |
54936004 | 182 | |
edf779ff FB |
183 | /* user access */ |
184 | ||
185 | #define VERIFY_READ 0 | |
186 | #define VERIFY_WRITE 1 | |
187 | ||
188 | #define access_ok(type,addr,size) (1) | |
189 | ||
53a5960a | 190 | /* NOTE get_user and put_user use host addresses. */ |
edf779ff FB |
191 | #define __put_user(x,ptr)\ |
192 | ({\ | |
193 | int size = sizeof(*ptr);\ | |
194 | switch(size) {\ | |
195 | case 1:\ | |
53a5960a | 196 | *(uint8_t *)(ptr) = (typeof(*ptr))(x);\ |
edf779ff FB |
197 | break;\ |
198 | case 2:\ | |
53a5960a | 199 | *(uint16_t *)(ptr) = tswap16((typeof(*ptr))(x));\ |
edf779ff FB |
200 | break;\ |
201 | case 4:\ | |
53a5960a | 202 | *(uint32_t *)(ptr) = tswap32((typeof(*ptr))(x));\ |
edf779ff FB |
203 | break;\ |
204 | case 8:\ | |
53a5960a | 205 | *(uint64_t *)(ptr) = tswap64((typeof(*ptr))(x));\ |
edf779ff FB |
206 | break;\ |
207 | default:\ | |
208 | abort();\ | |
209 | }\ | |
210 | 0;\ | |
211 | }) | |
212 | ||
213 | #define __get_user(x, ptr) \ | |
214 | ({\ | |
215 | int size = sizeof(*ptr);\ | |
216 | switch(size) {\ | |
217 | case 1:\ | |
53a5960a | 218 | x = (typeof(*ptr))*(uint8_t *)(ptr);\ |
edf779ff FB |
219 | break;\ |
220 | case 2:\ | |
53a5960a | 221 | x = (typeof(*ptr))tswap16(*(uint16_t *)(ptr));\ |
edf779ff FB |
222 | break;\ |
223 | case 4:\ | |
53a5960a | 224 | x = (typeof(*ptr))tswap32(*(uint32_t *)(ptr));\ |
edf779ff FB |
225 | break;\ |
226 | case 8:\ | |
53a5960a | 227 | x = (typeof(*ptr))tswap64(*(uint64_t *)(ptr));\ |
edf779ff FB |
228 | break;\ |
229 | default:\ | |
230 | abort();\ | |
231 | }\ | |
232 | 0;\ | |
233 | }) | |
234 | ||
edf779ff FB |
235 | #define put_user(x,ptr)\ |
236 | ({\ | |
237 | int __ret;\ | |
238 | if (access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)))\ | |
239 | __ret = __put_user(x, ptr);\ | |
240 | else\ | |
241 | __ret = -EFAULT;\ | |
242 | __ret;\ | |
243 | }) | |
244 | ||
245 | #define get_user(x,ptr)\ | |
246 | ({\ | |
247 | int __ret;\ | |
248 | if (access_ok(VERIFY_READ, ptr, sizeof(*ptr)))\ | |
249 | __ret = __get_user(x, ptr);\ | |
250 | else\ | |
251 | __ret = -EFAULT;\ | |
252 | __ret;\ | |
253 | }) | |
254 | ||
53a5960a PB |
255 | /* Functions for accessing guest memory. The tget and tput functions |
256 | read/write single values, byteswapping as neccessary. The lock_user | |
257 | gets a pointer to a contiguous area of guest memory, but does not perform | |
258 | and byteswapping. lock_user may return either a pointer to the guest | |
259 | memory, or a temporary buffer. */ | |
260 | ||
261 | /* Lock an area of guest memory into the host. If copy is true then the | |
262 | host area will have the same contents as the guest. */ | |
263 | static inline void *lock_user(target_ulong guest_addr, long len, int copy) | |
edf779ff | 264 | { |
53a5960a PB |
265 | #ifdef DEBUG_REMAP |
266 | void *addr; | |
267 | addr = malloc(len); | |
268 | if (copy) | |
269 | memcpy(addr, g2h(guest_addr), len); | |
edf779ff | 270 | else |
53a5960a PB |
271 | memset(addr, 0, len); |
272 | return addr; | |
273 | #else | |
274 | return g2h(guest_addr); | |
275 | #endif | |
edf779ff FB |
276 | } |
277 | ||
53a5960a PB |
278 | /* Unlock an area of guest memory. The first LEN bytes must be flushed back |
279 | to guest memory. */ | |
280 | static inline void unlock_user(void *host_addr, target_ulong guest_addr, | |
281 | long len) | |
edf779ff | 282 | { |
53a5960a PB |
283 | #ifdef DEBUG_REMAP |
284 | if (host_addr == g2h(guest_addr)) | |
285 | return; | |
286 | if (len > 0) | |
287 | memcpy(g2h(guest_addr), host_addr, len); | |
288 | free(host_addr); | |
289 | #endif | |
edf779ff FB |
290 | } |
291 | ||
53a5960a PB |
292 | /* Return the length of a string in target memory. */ |
293 | static inline int target_strlen(target_ulong ptr) | |
edf779ff | 294 | { |
53a5960a PB |
295 | return strlen(g2h(ptr)); |
296 | } | |
297 | ||
298 | /* Like lock_user but for null terminated strings. */ | |
299 | static inline void *lock_user_string(target_ulong guest_addr) | |
300 | { | |
301 | long len; | |
302 | len = target_strlen(guest_addr) + 1; | |
303 | return lock_user(guest_addr, len, 1); | |
edf779ff FB |
304 | } |
305 | ||
53a5960a PB |
306 | /* Helper macros for locking/ulocking a target struct. */ |
307 | #define lock_user_struct(host_ptr, guest_addr, copy) \ | |
308 | host_ptr = lock_user(guest_addr, sizeof(*host_ptr), copy) | |
309 | #define unlock_user_struct(host_ptr, guest_addr, copy) \ | |
310 | unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0) | |
311 | ||
312 | #define tget8(addr) ldub(addr) | |
313 | #define tput8(addr, val) stb(addr, val) | |
314 | #define tget16(addr) lduw(addr) | |
315 | #define tput16(addr, val) stw(addr, val) | |
316 | #define tget32(addr) ldl(addr) | |
317 | #define tput32(addr, val) stl(addr, val) | |
318 | #define tget64(addr) ldq(addr) | |
319 | #define tput64(addr, val) stq(addr, val) | |
320 | #if TARGET_LONG_BITS == 64 | |
321 | #define tgetl(addr) ldq(addr) | |
322 | #define tputl(addr, val) stq(addr, val) | |
323 | #else | |
324 | #define tgetl(addr) ldl(addr) | |
325 | #define tputl(addr, val) stl(addr, val) | |
326 | #endif | |
327 | ||
e88de099 | 328 | #endif /* QEMU_H */ |