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17#ifndef QEMU_H
18#define QEMU_H
19
20
21#include "cpu.h"
22#include "exec/cpu_ldst.h"
23
24#undef DEBUG_REMAP
25#ifdef DEBUG_REMAP
26#endif
27
28#include "exec/user/abitypes.h"
29
30enum BSDType {
31 target_freebsd,
32 target_netbsd,
33 target_openbsd,
34};
35extern enum BSDType bsd_type;
36
37#include "syscall_defs.h"
38#include "target_syscall.h"
39#include "target_signal.h"
40#include "exec/gdbstub.h"
41
42#if defined(CONFIG_USE_NPTL)
43#define THREAD __thread
44#else
45#define THREAD
46#endif
47
48
49
50
51
52struct image_info {
53 abi_ulong load_addr;
54 abi_ulong start_code;
55 abi_ulong end_code;
56 abi_ulong start_data;
57 abi_ulong end_data;
58 abi_ulong start_brk;
59 abi_ulong brk;
60 abi_ulong start_mmap;
61 abi_ulong mmap;
62 abi_ulong rss;
63 abi_ulong start_stack;
64 abi_ulong entry;
65 abi_ulong code_offset;
66 abi_ulong data_offset;
67 int personality;
68};
69
70#define MAX_SIGQUEUE_SIZE 1024
71
72struct sigqueue {
73 struct sigqueue *next;
74
75};
76
77struct emulated_sigtable {
78 int pending;
79 struct sigqueue *first;
80 struct sigqueue info;
81
82};
83
84
85
86typedef struct TaskState {
87 pid_t ts_tid;
88
89 struct TaskState *next;
90 int used;
91 struct image_info *info;
92
93 struct emulated_sigtable sigtab[TARGET_NSIG];
94 struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE];
95 struct sigqueue *first_free;
96 int signal_pending;
97
98 uint8_t stack[];
99} __attribute__((aligned(16))) TaskState;
100
101void init_task_state(TaskState *ts);
102extern const char *qemu_uname_release;
103extern unsigned long mmap_min_addr;
104
105
106
107
108
109
110
111#define MAX_ARG_PAGES 32
112
113
114
115
116
117struct linux_binprm {
118 char buf[128];
119 void *page[MAX_ARG_PAGES];
120 abi_ulong p;
121 int fd;
122 int e_uid, e_gid;
123 int argc, envc;
124 char **argv;
125 char **envp;
126 char * filename;
127};
128
129void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
130abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
131 abi_ulong stringp, int push_ptr);
132int loader_exec(const char * filename, char ** argv, char ** envp,
133 struct target_pt_regs * regs, struct image_info *infop);
134
135int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
136 struct image_info * info);
137int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
138 struct image_info * info);
139
140abi_long memcpy_to_target(abi_ulong dest, const void *src,
141 unsigned long len);
142void target_set_brk(abi_ulong new_brk);
143abi_long do_brk(abi_ulong new_brk);
144void syscall_init(void);
145abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
146 abi_long arg2, abi_long arg3, abi_long arg4,
147 abi_long arg5, abi_long arg6, abi_long arg7,
148 abi_long arg8);
149abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
150 abi_long arg2, abi_long arg3, abi_long arg4,
151 abi_long arg5, abi_long arg6);
152abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
153 abi_long arg2, abi_long arg3, abi_long arg4,
154 abi_long arg5, abi_long arg6);
155void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
156extern THREAD CPUState *thread_cpu;
157void cpu_loop(CPUArchState *env);
158char *target_strerror(int err);
159int get_osversion(void);
160void fork_start(void);
161void fork_end(int child);
162
163#include "qemu/log.h"
164
165
166struct syscallname {
167 int nr;
168 const char *name;
169 const char *format;
170 void (*call)(const struct syscallname *,
171 abi_long, abi_long, abi_long,
172 abi_long, abi_long, abi_long);
173 void (*result)(const struct syscallname *, abi_long);
174};
175
176void
177print_freebsd_syscall(int num,
178 abi_long arg1, abi_long arg2, abi_long arg3,
179 abi_long arg4, abi_long arg5, abi_long arg6);
180void print_freebsd_syscall_ret(int num, abi_long ret);
181void
182print_netbsd_syscall(int num,
183 abi_long arg1, abi_long arg2, abi_long arg3,
184 abi_long arg4, abi_long arg5, abi_long arg6);
185void print_netbsd_syscall_ret(int num, abi_long ret);
186void
187print_openbsd_syscall(int num,
188 abi_long arg1, abi_long arg2, abi_long arg3,
189 abi_long arg4, abi_long arg5, abi_long arg6);
190void print_openbsd_syscall_ret(int num, abi_long ret);
191extern int do_strace;
192
193
194void process_pending_signals(CPUArchState *cpu_env);
195void signal_init(void);
196
197
198
199long do_sigreturn(CPUArchState *env);
200long do_rt_sigreturn(CPUArchState *env);
201abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
202
203
204int target_mprotect(abi_ulong start, abi_ulong len, int prot);
205abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
206 int flags, int fd, abi_ulong offset);
207int target_munmap(abi_ulong start, abi_ulong len);
208abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
209 abi_ulong new_size, unsigned long flags,
210 abi_ulong new_addr);
211int target_msync(abi_ulong start, abi_ulong len, int flags);
212extern unsigned long last_brk;
213void mmap_fork_start(void);
214void mmap_fork_end(int child);
215
216
217extern unsigned long x86_stack_size;
218
219
220
221#define VERIFY_READ PAGE_READ
222#define VERIFY_WRITE (PAGE_READ | PAGE_WRITE)
223
224static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
225{
226 return page_check_range((target_ulong)addr, size, type) == 0;
227}
228
229
230
231
232
233#define __put_user(x, hptr)\
234({\
235 int size = sizeof(*hptr);\
236 switch(size) {\
237 case 1:\
238 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
239 break;\
240 case 2:\
241 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
242 break;\
243 case 4:\
244 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
245 break;\
246 case 8:\
247 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
248 break;\
249 default:\
250 abort();\
251 }\
252 0;\
253})
254
255#define __get_user(x, hptr) \
256({\
257 int size = sizeof(*hptr);\
258 switch(size) {\
259 case 1:\
260 x = (typeof(*hptr))*(uint8_t *)(hptr);\
261 break;\
262 case 2:\
263 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
264 break;\
265 case 4:\
266 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
267 break;\
268 case 8:\
269 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
270 break;\
271 default:\
272 \
273 x = 0;\
274 abort();\
275 }\
276 0;\
277})
278
279
280
281
282
283
284#define put_user(x, gaddr, target_type) \
285({ \
286 abi_ulong __gaddr = (gaddr); \
287 target_type *__hptr; \
288 abi_long __ret; \
289 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
290 __ret = __put_user((x), __hptr); \
291 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
292 } else \
293 __ret = -TARGET_EFAULT; \
294 __ret; \
295})
296
297#define get_user(x, gaddr, target_type) \
298({ \
299 abi_ulong __gaddr = (gaddr); \
300 target_type *__hptr; \
301 abi_long __ret; \
302 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
303 __ret = __get_user((x), __hptr); \
304 unlock_user(__hptr, __gaddr, 0); \
305 } else { \
306 \
307 (x) = 0; \
308 __ret = -TARGET_EFAULT; \
309 } \
310 __ret; \
311})
312
313#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
314#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
315#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
316#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
317#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
318#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
319#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
320#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
321#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
322#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
323
324#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
325#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
326#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
327#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
328#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
329#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
330#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
331#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
332#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
333#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
334
335
336
337
338
339abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
340abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
341
342
343
344
345
346
347
348
349
350static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
351{
352 if (!access_ok(type, guest_addr, len))
353 return NULL;
354#ifdef DEBUG_REMAP
355 {
356 void *addr;
357 addr = g_malloc(len);
358 if (copy)
359 memcpy(addr, g2h_untagged(guest_addr), len);
360 else
361 memset(addr, 0, len);
362 return addr;
363 }
364#else
365 return g2h_untagged(guest_addr);
366#endif
367}
368
369
370
371
372static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
373 long len)
374{
375
376#ifdef DEBUG_REMAP
377 if (!host_ptr)
378 return;
379 if (host_ptr == g2h_untagged(guest_addr))
380 return;
381 if (len > 0)
382 memcpy(g2h_untagged(guest_addr), host_ptr, len);
383 g_free(host_ptr);
384#endif
385}
386
387
388
389abi_long target_strlen(abi_ulong gaddr);
390
391
392static inline void *lock_user_string(abi_ulong guest_addr)
393{
394 abi_long len;
395 len = target_strlen(guest_addr);
396 if (len < 0)
397 return NULL;
398 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
399}
400
401
402#define lock_user_struct(type, host_ptr, guest_addr, copy) \
403 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
404#define unlock_user_struct(host_ptr, guest_addr, copy) \
405 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
406
407#if defined(CONFIG_USE_NPTL)
408#include <pthread.h>
409#endif
410
411#endif
412