1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17#ifndef QEMU_H
18#define QEMU_H
19
20#include "qemu/osdep.h"
21#include "cpu.h"
22#include "qemu/units.h"
23#include "exec/cpu_ldst.h"
24#include "exec/exec-all.h"
25
26#undef DEBUG_REMAP
27
28#include "exec/user/abitypes.h"
29
30extern char **environ;
31
32enum BSDType {
33 target_freebsd,
34 target_netbsd,
35 target_openbsd,
36};
37extern enum BSDType bsd_type;
38
39#include "exec/user/thunk.h"
40#include "target_arch.h"
41#include "syscall_defs.h"
42#include "target_syscall.h"
43#include "target_os_vmparam.h"
44#include "target_os_signal.h"
45#include "exec/gdbstub.h"
46
47
48
49
50
51
52struct image_info {
53 abi_ulong load_bias;
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 abi_ulong arg_start;
69 abi_ulong arg_end;
70 uint32_t elf_flags;
71};
72
73#define MAX_SIGQUEUE_SIZE 1024
74
75struct qemu_sigqueue {
76 struct qemu_sigqueue *next;
77 target_siginfo_t info;
78};
79
80struct emulated_sigtable {
81 int pending;
82 struct qemu_sigqueue *first;
83 struct qemu_sigqueue info;
84};
85
86
87
88
89typedef struct TaskState {
90 pid_t ts_tid;
91
92 struct TaskState *next;
93 struct bsd_binprm *bprm;
94 struct image_info *info;
95
96 struct emulated_sigtable sigtab[TARGET_NSIG];
97 struct qemu_sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE];
98 struct qemu_sigqueue *first_free;
99 int signal_pending;
100
101 uint8_t stack[];
102} __attribute__((aligned(16))) TaskState;
103
104void init_task_state(TaskState *ts);
105void stop_all_tasks(void);
106extern const char *qemu_uname_release;
107
108
109
110
111
112
113
114#if TARGET_ABI_BITS > 32
115#define TARGET_ARG_MAX (512 * KiB)
116#else
117#define TARGET_ARG_MAX (256 * KiB)
118#endif
119#define MAX_ARG_PAGES (TARGET_ARG_MAX / TARGET_PAGE_SIZE)
120
121
122
123
124
125struct bsd_binprm {
126 char buf[128];
127 void *page[MAX_ARG_PAGES];
128 abi_ulong p;
129 abi_ulong stringp;
130 int fd;
131 int e_uid, e_gid;
132 int argc, envc;
133 char **argv;
134 char **envp;
135 char *filename;
136 char *fullpath;
137 int (*core_dump)(int, CPUArchState *);
138};
139
140void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
141abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
142 abi_ulong stringp);
143int loader_exec(const char *filename, char **argv, char **envp,
144 struct target_pt_regs *regs, struct image_info *infop,
145 struct bsd_binprm *bprm);
146
147int load_elf_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
148 struct image_info *info);
149int load_flt_binary(struct bsd_binprm *bprm, struct target_pt_regs *regs,
150 struct image_info *info);
151int is_target_elf_binary(int fd);
152
153abi_long memcpy_to_target(abi_ulong dest, const void *src,
154 unsigned long len);
155void target_set_brk(abi_ulong new_brk);
156abi_long do_brk(abi_ulong new_brk);
157void syscall_init(void);
158abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
159 abi_long arg2, abi_long arg3, abi_long arg4,
160 abi_long arg5, abi_long arg6, abi_long arg7,
161 abi_long arg8);
162abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
163 abi_long arg2, abi_long arg3, abi_long arg4,
164 abi_long arg5, abi_long arg6);
165abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
166 abi_long arg2, abi_long arg3, abi_long arg4,
167 abi_long arg5, abi_long arg6);
168void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
169extern __thread CPUState *thread_cpu;
170void cpu_loop(CPUArchState *env);
171char *target_strerror(int err);
172int get_osversion(void);
173void fork_start(void);
174void fork_end(int child);
175
176#include "qemu/log.h"
177
178
179struct syscallname {
180 int nr;
181 const char *name;
182 const char *format;
183 void (*call)(const struct syscallname *,
184 abi_long, abi_long, abi_long,
185 abi_long, abi_long, abi_long);
186 void (*result)(const struct syscallname *, abi_long);
187};
188
189void
190print_freebsd_syscall(int num,
191 abi_long arg1, abi_long arg2, abi_long arg3,
192 abi_long arg4, abi_long arg5, abi_long arg6);
193void print_freebsd_syscall_ret(int num, abi_long ret);
194void
195print_netbsd_syscall(int num,
196 abi_long arg1, abi_long arg2, abi_long arg3,
197 abi_long arg4, abi_long arg5, abi_long arg6);
198void print_netbsd_syscall_ret(int num, abi_long ret);
199void
200print_openbsd_syscall(int num,
201 abi_long arg1, abi_long arg2, abi_long arg3,
202 abi_long arg4, abi_long arg5, abi_long arg6);
203void print_openbsd_syscall_ret(int num, abi_long ret);
204extern int do_strace;
205
206
207void process_pending_signals(CPUArchState *cpu_env);
208void signal_init(void);
209long do_sigreturn(CPUArchState *env);
210long do_rt_sigreturn(CPUArchState *env);
211void queue_signal(CPUArchState *env, int sig, target_siginfo_t *info);
212abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
213
214
215int target_mprotect(abi_ulong start, abi_ulong len, int prot);
216abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
217 int flags, int fd, off_t offset);
218int target_munmap(abi_ulong start, abi_ulong len);
219abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
220 abi_ulong new_size, unsigned long flags,
221 abi_ulong new_addr);
222int target_msync(abi_ulong start, abi_ulong len, int flags);
223extern unsigned long last_brk;
224extern abi_ulong mmap_next_start;
225abi_ulong mmap_find_vma(abi_ulong start, abi_ulong size);
226void mmap_fork_start(void);
227void mmap_fork_end(int child);
228
229
230extern char qemu_proc_pathname[];
231extern unsigned long target_maxtsiz;
232extern unsigned long target_dfldsiz;
233extern unsigned long target_maxdsiz;
234extern unsigned long target_dflssiz;
235extern unsigned long target_maxssiz;
236extern unsigned long target_sgrowsiz;
237
238
239abi_long get_errno(abi_long ret);
240bool is_error(abi_long ret);
241
242
243abi_long do_freebsd_sysarch(void *cpu_env, abi_long arg1, abi_long arg2);
244
245
246
247#define VERIFY_READ PAGE_READ
248#define VERIFY_WRITE (PAGE_READ | PAGE_WRITE)
249
250static inline bool access_ok(int type, abi_ulong addr, abi_ulong size)
251{
252 return page_check_range((target_ulong)addr, size, type) == 0;
253}
254
255
256
257
258
259
260
261#define __put_user(x, hptr)\
262({\
263 int size = sizeof(*hptr);\
264 switch (size) {\
265 case 1:\
266 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
267 break;\
268 case 2:\
269 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
270 break;\
271 case 4:\
272 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
273 break;\
274 case 8:\
275 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
276 break;\
277 default:\
278 abort();\
279 } \
280 0;\
281})
282
283#define __get_user(x, hptr) \
284({\
285 int size = sizeof(*hptr);\
286 switch (size) {\
287 case 1:\
288 x = (typeof(*hptr))*(uint8_t *)(hptr);\
289 break;\
290 case 2:\
291 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
292 break;\
293 case 4:\
294 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
295 break;\
296 case 8:\
297 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
298 break;\
299 default:\
300 x = 0;\
301 abort();\
302 } \
303 0;\
304})
305
306
307
308
309
310
311
312
313#define put_user(x, gaddr, target_type) \
314({ \
315 abi_ulong __gaddr = (gaddr); \
316 target_type *__hptr; \
317 abi_long __ret; \
318 __hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0); \
319 if (__hptr) { \
320 __ret = __put_user((x), __hptr); \
321 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
322 } else \
323 __ret = -TARGET_EFAULT; \
324 __ret; \
325})
326
327#define get_user(x, gaddr, target_type) \
328({ \
329 abi_ulong __gaddr = (gaddr); \
330 target_type *__hptr; \
331 abi_long __ret; \
332 __hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1); \
333 if (__hptr) { \
334 __ret = __get_user((x), __hptr); \
335 unlock_user(__hptr, __gaddr, 0); \
336 } else { \
337 (x) = 0; \
338 __ret = -TARGET_EFAULT; \
339 } \
340 __ret; \
341})
342
343#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
344#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
345#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
346#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
347#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
348#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
349#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
350#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
351#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
352#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
353
354#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
355#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
356#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
357#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
358#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
359#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
360#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
361#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
362#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
363#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
364
365
366
367
368
369
370abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
371abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
372
373
374
375
376
377
378
379
380
381
382
383
384
385static inline void *lock_user(int type, abi_ulong guest_addr, long len,
386 int copy)
387{
388 if (!access_ok(type, guest_addr, len)) {
389 return NULL;
390 }
391#ifdef DEBUG_REMAP
392 {
393 void *addr;
394 addr = g_malloc(len);
395 if (copy) {
396 memcpy(addr, g2h_untagged(guest_addr), len);
397 } else {
398 memset(addr, 0, len);
399 }
400 return addr;
401 }
402#else
403 return g2h_untagged(guest_addr);
404#endif
405}
406
407
408
409
410
411static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
412 long len)
413{
414
415#ifdef DEBUG_REMAP
416 if (!host_ptr) {
417 return;
418 }
419 if (host_ptr == g2h_untagged(guest_addr)) {
420 return;
421 }
422 if (len > 0) {
423 memcpy(g2h_untagged(guest_addr), host_ptr, len);
424 }
425 g_free(host_ptr);
426#endif
427}
428
429
430
431
432
433abi_long target_strlen(abi_ulong gaddr);
434
435
436static inline void *lock_user_string(abi_ulong guest_addr)
437{
438 abi_long len;
439 len = target_strlen(guest_addr);
440 if (len < 0) {
441 return NULL;
442 }
443 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
444}
445
446
447#define lock_user_struct(type, host_ptr, guest_addr, copy) \
448 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
449#define unlock_user_struct(host_ptr, guest_addr, copy) \
450 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
451
452#include <pthread.h>
453
454#endif
455