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17#ifndef QEMU_H
18#define QEMU_H
19
20
21#include "cpu.h"
22#include "exec/exec-all.h"
23#include "exec/cpu_ldst.h"
24
25#undef DEBUG_REMAP
26#ifdef DEBUG_REMAP
27#endif
28
29#include "exec/user/abitypes.h"
30
31enum BSDType {
32 target_freebsd,
33 target_netbsd,
34 target_openbsd,
35};
36extern enum BSDType bsd_type;
37
38#include "syscall_defs.h"
39#include "target_syscall.h"
40#include "target_signal.h"
41#include "exec/gdbstub.h"
42
43#if defined(CONFIG_USE_NPTL)
44#define THREAD __thread
45#else
46#define THREAD
47#endif
48
49
50
51
52
53struct image_info {
54 abi_ulong load_addr;
55 abi_ulong start_code;
56 abi_ulong end_code;
57 abi_ulong start_data;
58 abi_ulong end_data;
59 abi_ulong start_brk;
60 abi_ulong brk;
61 abi_ulong start_mmap;
62 abi_ulong mmap;
63 abi_ulong rss;
64 abi_ulong start_stack;
65 abi_ulong entry;
66 abi_ulong code_offset;
67 abi_ulong data_offset;
68 int personality;
69};
70
71#define MAX_SIGQUEUE_SIZE 1024
72
73struct sigqueue {
74 struct sigqueue *next;
75
76};
77
78struct emulated_sigtable {
79 int pending;
80 struct sigqueue *first;
81 struct sigqueue info;
82
83};
84
85
86
87typedef struct TaskState {
88 pid_t ts_tid;
89
90 struct TaskState *next;
91 int used;
92 struct image_info *info;
93
94 struct emulated_sigtable sigtab[TARGET_NSIG];
95 struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE];
96 struct sigqueue *first_free;
97 int signal_pending;
98
99 uint8_t stack[0];
100} __attribute__((aligned(16))) TaskState;
101
102void init_task_state(TaskState *ts);
103extern const char *qemu_uname_release;
104extern unsigned long mmap_min_addr;
105
106
107
108
109
110
111
112#define MAX_ARG_PAGES 32
113
114
115
116
117
118struct linux_binprm {
119 char buf[128];
120 void *page[MAX_ARG_PAGES];
121 abi_ulong p;
122 int fd;
123 int e_uid, e_gid;
124 int argc, envc;
125 char **argv;
126 char **envp;
127 char * filename;
128};
129
130void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
131abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
132 abi_ulong stringp, int push_ptr);
133int loader_exec(const char * filename, char ** argv, char ** envp,
134 struct target_pt_regs * regs, struct image_info *infop);
135
136int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
137 struct image_info * info);
138int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
139 struct image_info * info);
140
141abi_long memcpy_to_target(abi_ulong dest, const void *src,
142 unsigned long len);
143void target_set_brk(abi_ulong new_brk);
144abi_long do_brk(abi_ulong new_brk);
145void syscall_init(void);
146abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
147 abi_long arg2, abi_long arg3, abi_long arg4,
148 abi_long arg5, abi_long arg6, abi_long arg7,
149 abi_long arg8);
150abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
151 abi_long arg2, abi_long arg3, abi_long arg4,
152 abi_long arg5, abi_long arg6);
153abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
154 abi_long arg2, abi_long arg3, abi_long arg4,
155 abi_long arg5, abi_long arg6);
156void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
157extern THREAD CPUState *thread_cpu;
158void cpu_loop(CPUArchState *env);
159char *target_strerror(int err);
160int get_osversion(void);
161void fork_start(void);
162void fork_end(int child);
163
164#include "qemu/log.h"
165
166
167struct syscallname {
168 int nr;
169 const char *name;
170 const char *format;
171 void (*call)(const struct syscallname *,
172 abi_long, abi_long, abi_long,
173 abi_long, abi_long, abi_long);
174 void (*result)(const struct syscallname *, abi_long);
175};
176
177void
178print_freebsd_syscall(int num,
179 abi_long arg1, abi_long arg2, abi_long arg3,
180 abi_long arg4, abi_long arg5, abi_long arg6);
181void print_freebsd_syscall_ret(int num, abi_long ret);
182void
183print_netbsd_syscall(int num,
184 abi_long arg1, abi_long arg2, abi_long arg3,
185 abi_long arg4, abi_long arg5, abi_long arg6);
186void print_netbsd_syscall_ret(int num, abi_long ret);
187void
188print_openbsd_syscall(int num,
189 abi_long arg1, abi_long arg2, abi_long arg3,
190 abi_long arg4, abi_long arg5, abi_long arg6);
191void print_openbsd_syscall_ret(int num, abi_long ret);
192extern int do_strace;
193
194
195void process_pending_signals(CPUArchState *cpu_env);
196void signal_init(void);
197
198
199
200long do_sigreturn(CPUArchState *env);
201long do_rt_sigreturn(CPUArchState *env);
202abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
203
204
205int target_mprotect(abi_ulong start, abi_ulong len, int prot);
206abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
207 int flags, int fd, abi_ulong offset);
208int target_munmap(abi_ulong start, abi_ulong len);
209abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
210 abi_ulong new_size, unsigned long flags,
211 abi_ulong new_addr);
212int target_msync(abi_ulong start, abi_ulong len, int flags);
213extern unsigned long last_brk;
214void mmap_fork_start(void);
215void mmap_fork_end(int child);
216
217
218extern unsigned long x86_stack_size;
219
220
221
222#define VERIFY_READ 0
223#define VERIFY_WRITE 1
224
225static inline int access_ok(int type, abi_ulong addr, abi_ulong size)
226{
227 return page_check_range((target_ulong)addr, size,
228 (type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0;
229}
230
231
232
233
234
235#define __put_user(x, hptr)\
236({\
237 int size = sizeof(*hptr);\
238 switch(size) {\
239 case 1:\
240 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
241 break;\
242 case 2:\
243 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
244 break;\
245 case 4:\
246 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
247 break;\
248 case 8:\
249 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
250 break;\
251 default:\
252 abort();\
253 }\
254 0;\
255})
256
257#define __get_user(x, hptr) \
258({\
259 int size = sizeof(*hptr);\
260 switch(size) {\
261 case 1:\
262 x = (typeof(*hptr))*(uint8_t *)(hptr);\
263 break;\
264 case 2:\
265 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
266 break;\
267 case 4:\
268 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
269 break;\
270 case 8:\
271 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
272 break;\
273 default:\
274 \
275 x = 0;\
276 abort();\
277 }\
278 0;\
279})
280
281
282
283
284
285
286#define put_user(x, gaddr, target_type) \
287({ \
288 abi_ulong __gaddr = (gaddr); \
289 target_type *__hptr; \
290 abi_long __ret; \
291 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
292 __ret = __put_user((x), __hptr); \
293 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
294 } else \
295 __ret = -TARGET_EFAULT; \
296 __ret; \
297})
298
299#define get_user(x, gaddr, target_type) \
300({ \
301 abi_ulong __gaddr = (gaddr); \
302 target_type *__hptr; \
303 abi_long __ret; \
304 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
305 __ret = __get_user((x), __hptr); \
306 unlock_user(__hptr, __gaddr, 0); \
307 } else { \
308 \
309 (x) = 0; \
310 __ret = -TARGET_EFAULT; \
311 } \
312 __ret; \
313})
314
315#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
316#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
317#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
318#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
319#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
320#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
321#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
322#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
323#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
324#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
325
326#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
327#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
328#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
329#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
330#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
331#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
332#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
333#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
334#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
335#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
336
337
338
339
340
341abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
342abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
343
344
345
346
347
348
349
350
351
352static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
353{
354 if (!access_ok(type, guest_addr, len))
355 return NULL;
356#ifdef DEBUG_REMAP
357 {
358 void *addr;
359 addr = g_malloc(len);
360 if (copy)
361 memcpy(addr, g2h(guest_addr), len);
362 else
363 memset(addr, 0, len);
364 return addr;
365 }
366#else
367 return g2h(guest_addr);
368#endif
369}
370
371
372
373
374static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
375 long len)
376{
377
378#ifdef DEBUG_REMAP
379 if (!host_ptr)
380 return;
381 if (host_ptr == g2h(guest_addr))
382 return;
383 if (len > 0)
384 memcpy(g2h(guest_addr), host_ptr, len);
385 g_free(host_ptr);
386#endif
387}
388
389
390
391abi_long target_strlen(abi_ulong gaddr);
392
393
394static inline void *lock_user_string(abi_ulong guest_addr)
395{
396 abi_long len;
397 len = target_strlen(guest_addr);
398 if (len < 0)
399 return NULL;
400 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
401}
402
403
404#define lock_user_struct(type, host_ptr, guest_addr, copy) \
405 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
406#define unlock_user_struct(host_ptr, guest_addr, copy) \
407 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
408
409#if defined(CONFIG_USE_NPTL)
410#include <pthread.h>
411#endif
412
413#endif
414