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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 struct TaskState *next;
89 int used;
90 struct image_info *info;
91
92 struct emulated_sigtable sigtab[TARGET_NSIG];
93 struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE];
94 struct sigqueue *first_free;
95 int signal_pending;
96
97 uint8_t stack[0];
98} __attribute__((aligned(16))) TaskState;
99
100void init_task_state(TaskState *ts);
101extern const char *qemu_uname_release;
102extern unsigned long mmap_min_addr;
103
104
105
106
107
108
109
110#define MAX_ARG_PAGES 32
111
112
113
114
115
116struct linux_binprm {
117 char buf[128];
118 void *page[MAX_ARG_PAGES];
119 abi_ulong p;
120 int fd;
121 int e_uid, e_gid;
122 int argc, envc;
123 char **argv;
124 char **envp;
125 char * filename;
126};
127
128void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
129abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
130 abi_ulong stringp, int push_ptr);
131int loader_exec(const char * filename, char ** argv, char ** envp,
132 struct target_pt_regs * regs, struct image_info *infop);
133
134int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
135 struct image_info * info);
136int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
137 struct image_info * info);
138
139abi_long memcpy_to_target(abi_ulong dest, const void *src,
140 unsigned long len);
141void target_set_brk(abi_ulong new_brk);
142abi_long do_brk(abi_ulong new_brk);
143void syscall_init(void);
144abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
145 abi_long arg2, abi_long arg3, abi_long arg4,
146 abi_long arg5, abi_long arg6, abi_long arg7,
147 abi_long arg8);
148abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
149 abi_long arg2, abi_long arg3, abi_long arg4,
150 abi_long arg5, abi_long arg6);
151abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
152 abi_long arg2, abi_long arg3, abi_long arg4,
153 abi_long arg5, abi_long arg6);
154void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
155extern THREAD CPUState *thread_cpu;
156void cpu_loop(CPUArchState *env);
157char *target_strerror(int err);
158int get_osversion(void);
159void fork_start(void);
160void fork_end(int child);
161
162#include "qemu/log.h"
163
164
165struct syscallname {
166 int nr;
167 const char *name;
168 const char *format;
169 void (*call)(const struct syscallname *,
170 abi_long, abi_long, abi_long,
171 abi_long, abi_long, abi_long);
172 void (*result)(const struct syscallname *, abi_long);
173};
174
175void
176print_freebsd_syscall(int num,
177 abi_long arg1, abi_long arg2, abi_long arg3,
178 abi_long arg4, abi_long arg5, abi_long arg6);
179void print_freebsd_syscall_ret(int num, abi_long ret);
180void
181print_netbsd_syscall(int num,
182 abi_long arg1, abi_long arg2, abi_long arg3,
183 abi_long arg4, abi_long arg5, abi_long arg6);
184void print_netbsd_syscall_ret(int num, abi_long ret);
185void
186print_openbsd_syscall(int num,
187 abi_long arg1, abi_long arg2, abi_long arg3,
188 abi_long arg4, abi_long arg5, abi_long arg6);
189void print_openbsd_syscall_ret(int num, abi_long ret);
190extern int do_strace;
191
192
193void process_pending_signals(CPUArchState *cpu_env);
194void signal_init(void);
195
196
197
198long do_sigreturn(CPUArchState *env);
199long do_rt_sigreturn(CPUArchState *env);
200abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
201
202
203int target_mprotect(abi_ulong start, abi_ulong len, int prot);
204abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
205 int flags, int fd, abi_ulong offset);
206int target_munmap(abi_ulong start, abi_ulong len);
207abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
208 abi_ulong new_size, unsigned long flags,
209 abi_ulong new_addr);
210int target_msync(abi_ulong start, abi_ulong len, int flags);
211extern unsigned long last_brk;
212void cpu_list_lock(void);
213void cpu_list_unlock(void);
214#if defined(CONFIG_USE_NPTL)
215void mmap_fork_start(void);
216void mmap_fork_end(int child);
217#endif
218
219
220extern unsigned long x86_stack_size;
221
222
223
224#define VERIFY_READ 0
225#define VERIFY_WRITE 1
226
227static inline int access_ok(int type, abi_ulong addr, abi_ulong size)
228{
229 return page_check_range((target_ulong)addr, size,
230 (type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0;
231}
232
233
234
235
236
237#define __put_user(x, hptr)\
238({\
239 int size = sizeof(*hptr);\
240 switch(size) {\
241 case 1:\
242 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
243 break;\
244 case 2:\
245 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
246 break;\
247 case 4:\
248 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
249 break;\
250 case 8:\
251 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
252 break;\
253 default:\
254 abort();\
255 }\
256 0;\
257})
258
259#define __get_user(x, hptr) \
260({\
261 int size = sizeof(*hptr);\
262 switch(size) {\
263 case 1:\
264 x = (typeof(*hptr))*(uint8_t *)(hptr);\
265 break;\
266 case 2:\
267 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
268 break;\
269 case 4:\
270 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
271 break;\
272 case 8:\
273 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
274 break;\
275 default:\
276 \
277 x = 0;\
278 abort();\
279 }\
280 0;\
281})
282
283
284
285
286
287
288#define put_user(x, gaddr, target_type) \
289({ \
290 abi_ulong __gaddr = (gaddr); \
291 target_type *__hptr; \
292 abi_long __ret; \
293 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
294 __ret = __put_user((x), __hptr); \
295 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
296 } else \
297 __ret = -TARGET_EFAULT; \
298 __ret; \
299})
300
301#define get_user(x, gaddr, target_type) \
302({ \
303 abi_ulong __gaddr = (gaddr); \
304 target_type *__hptr; \
305 abi_long __ret; \
306 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
307 __ret = __get_user((x), __hptr); \
308 unlock_user(__hptr, __gaddr, 0); \
309 } else { \
310 \
311 (x) = 0; \
312 __ret = -TARGET_EFAULT; \
313 } \
314 __ret; \
315})
316
317#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
318#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
319#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
320#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
321#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
322#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
323#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
324#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
325#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
326#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
327
328#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
329#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
330#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
331#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
332#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
333#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
334#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
335#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
336#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
337#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
338
339
340
341
342
343abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
344abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
345
346
347
348
349
350
351
352
353
354static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
355{
356 if (!access_ok(type, guest_addr, len))
357 return NULL;
358#ifdef DEBUG_REMAP
359 {
360 void *addr;
361 addr = malloc(len);
362 if (copy)
363 memcpy(addr, g2h(guest_addr), len);
364 else
365 memset(addr, 0, len);
366 return addr;
367 }
368#else
369 return g2h(guest_addr);
370#endif
371}
372
373
374
375
376static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
377 long len)
378{
379
380#ifdef DEBUG_REMAP
381 if (!host_ptr)
382 return;
383 if (host_ptr == g2h(guest_addr))
384 return;
385 if (len > 0)
386 memcpy(g2h(guest_addr), host_ptr, len);
387 free(host_ptr);
388#endif
389}
390
391
392
393abi_long target_strlen(abi_ulong gaddr);
394
395
396static inline void *lock_user_string(abi_ulong guest_addr)
397{
398 abi_long len;
399 len = target_strlen(guest_addr);
400 if (len < 0)
401 return NULL;
402 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
403}
404
405
406#define lock_user_struct(type, host_ptr, guest_addr, copy) \
407 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
408#define unlock_user_struct(host_ptr, guest_addr, copy) \
409 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
410
411#if defined(CONFIG_USE_NPTL)
412#include <pthread.h>
413#endif
414
415#endif
416