1#ifndef QEMU_H
2#define QEMU_H
3
4#include <signal.h>
5#include <string.h>
6
7#include "cpu.h"
8#include "exec/cpu_ldst.h"
9
10#undef DEBUG_REMAP
11#ifdef DEBUG_REMAP
12#include <stdlib.h>
13#endif
14
15#include "exec/user/abitypes.h"
16
17#include "exec/user/thunk.h"
18#include "syscall_defs.h"
19#include "syscall.h"
20#include "exec/gdbstub.h"
21#include "qemu/queue.h"
22
23#define THREAD __thread
24
25
26
27
28
29struct image_info {
30 abi_ulong load_bias;
31 abi_ulong load_addr;
32 abi_ulong start_code;
33 abi_ulong end_code;
34 abi_ulong start_data;
35 abi_ulong end_data;
36 abi_ulong start_brk;
37 abi_ulong brk;
38 abi_ulong start_mmap;
39 abi_ulong mmap;
40 abi_ulong rss;
41 abi_ulong start_stack;
42 abi_ulong stack_limit;
43 abi_ulong entry;
44 abi_ulong code_offset;
45 abi_ulong data_offset;
46 abi_ulong saved_auxv;
47 abi_ulong auxv_len;
48 abi_ulong arg_start;
49 abi_ulong arg_end;
50 uint32_t elf_flags;
51 int personality;
52#ifdef CONFIG_USE_FDPIC
53 abi_ulong loadmap_addr;
54 uint16_t nsegs;
55 void *loadsegs;
56 abi_ulong pt_dynamic_addr;
57 struct image_info *other_info;
58#endif
59};
60
61#ifdef TARGET_I386
62
63struct vm86_saved_state {
64 uint32_t eax;
65 uint32_t ebx;
66 uint32_t ecx;
67 uint32_t edx;
68 uint32_t esi;
69 uint32_t edi;
70 uint32_t ebp;
71 uint32_t esp;
72 uint32_t eflags;
73 uint32_t eip;
74 uint16_t cs, ss, ds, es, fs, gs;
75};
76#endif
77
78#if defined(TARGET_ARM) && defined(TARGET_ABI32)
79
80#include "nwfpe/fpa11.h"
81#endif
82
83#define MAX_SIGQUEUE_SIZE 1024
84
85struct sigqueue {
86 struct sigqueue *next;
87 target_siginfo_t info;
88};
89
90struct emulated_sigtable {
91 int pending;
92 struct sigqueue *first;
93 struct sigqueue info;
94
95};
96
97
98
99typedef struct TaskState {
100 pid_t ts_tid;
101#ifdef TARGET_ARM
102# ifdef TARGET_ABI32
103
104 FPA11 fpa;
105# endif
106 int swi_errno;
107#endif
108#ifdef TARGET_UNICORE32
109 int swi_errno;
110#endif
111#if defined(TARGET_I386) && !defined(TARGET_X86_64)
112 abi_ulong target_v86;
113 struct vm86_saved_state vm86_saved_regs;
114 struct target_vm86plus_struct vm86plus;
115 uint32_t v86flags;
116 uint32_t v86mask;
117#endif
118 abi_ulong child_tidptr;
119#ifdef TARGET_M68K
120 int sim_syscalls;
121 abi_ulong tp_value;
122#endif
123#if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
124
125 uint32_t heap_base;
126 uint32_t heap_limit;
127#endif
128 uint32_t stack_base;
129 int used;
130 bool sigsegv_blocked;
131 struct image_info *info;
132 struct linux_binprm *bprm;
133
134 struct emulated_sigtable sigtab[TARGET_NSIG];
135 struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE];
136 struct sigqueue *first_free;
137 int signal_pending;
138} __attribute__((aligned(16))) TaskState;
139
140extern char *exec_path;
141void init_task_state(TaskState *ts);
142void task_settid(TaskState *);
143void stop_all_tasks(void);
144extern const char *qemu_uname_release;
145extern unsigned long mmap_min_addr;
146
147
148
149
150
151
152
153#define MAX_ARG_PAGES 33
154
155
156
157#define BPRM_BUF_SIZE 1024
158
159
160
161
162
163struct linux_binprm {
164 char buf[BPRM_BUF_SIZE] __attribute__((aligned));
165 void *page[MAX_ARG_PAGES];
166 abi_ulong p;
167 int fd;
168 int e_uid, e_gid;
169 int argc, envc;
170 char **argv;
171 char **envp;
172 char * filename;
173 int (*core_dump)(int, const CPUArchState *);
174};
175
176void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
177abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
178 abi_ulong stringp, int push_ptr);
179int loader_exec(int fdexec, const char *filename, char **argv, char **envp,
180 struct target_pt_regs * regs, struct image_info *infop,
181 struct linux_binprm *);
182
183int load_elf_binary(struct linux_binprm *bprm, struct image_info *info);
184int load_flt_binary(struct linux_binprm *bprm, struct image_info *info);
185
186abi_long memcpy_to_target(abi_ulong dest, const void *src,
187 unsigned long len);
188void target_set_brk(abi_ulong new_brk);
189abi_long do_brk(abi_ulong new_brk);
190void syscall_init(void);
191abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
192 abi_long arg2, abi_long arg3, abi_long arg4,
193 abi_long arg5, abi_long arg6, abi_long arg7,
194 abi_long arg8);
195void gemu_log(const char *fmt, ...) GCC_FMT_ATTR(1, 2);
196extern THREAD CPUState *thread_cpu;
197void cpu_loop(CPUArchState *env);
198char *target_strerror(int err);
199int get_osversion(void);
200void init_qemu_uname_release(void);
201void fork_start(void);
202void fork_end(int child);
203
204
205
206
207
208
209
210
211
212unsigned long init_guest_space(unsigned long host_start,
213 unsigned long host_size,
214 unsigned long guest_start,
215 bool fixed);
216
217#include "qemu/log.h"
218
219
220int host_to_target_waitstatus(int status);
221
222
223void print_syscall(int num,
224 abi_long arg1, abi_long arg2, abi_long arg3,
225 abi_long arg4, abi_long arg5, abi_long arg6);
226void print_syscall_ret(int num, abi_long arg1);
227extern int do_strace;
228
229
230void process_pending_signals(CPUArchState *cpu_env);
231void signal_init(void);
232int queue_signal(CPUArchState *env, int sig, target_siginfo_t *info);
233void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
234void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
235int target_to_host_signal(int sig);
236int host_to_target_signal(int sig);
237long do_sigreturn(CPUArchState *env);
238long do_rt_sigreturn(CPUArchState *env);
239abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
240int do_sigprocmask(int how, const sigset_t *set, sigset_t *oldset);
241
242#ifdef TARGET_I386
243
244void save_v86_state(CPUX86State *env);
245void handle_vm86_trap(CPUX86State *env, int trapno);
246void handle_vm86_fault(CPUX86State *env);
247int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr);
248#elif defined(TARGET_SPARC64)
249void sparc64_set_context(CPUSPARCState *env);
250void sparc64_get_context(CPUSPARCState *env);
251#endif
252
253
254int target_mprotect(abi_ulong start, abi_ulong len, int prot);
255abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
256 int flags, int fd, abi_ulong offset);
257int target_munmap(abi_ulong start, abi_ulong len);
258abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
259 abi_ulong new_size, unsigned long flags,
260 abi_ulong new_addr);
261int target_msync(abi_ulong start, abi_ulong len, int flags);
262extern unsigned long last_brk;
263extern abi_ulong mmap_next_start;
264void mmap_lock(void);
265void mmap_unlock(void);
266abi_ulong mmap_find_vma(abi_ulong, abi_ulong);
267void cpu_list_lock(void);
268void cpu_list_unlock(void);
269void mmap_fork_start(void);
270void mmap_fork_end(int child);
271
272
273extern unsigned long guest_stack_size;
274
275
276
277#define VERIFY_READ 0
278#define VERIFY_WRITE 1
279
280static inline int access_ok(int type, abi_ulong addr, abi_ulong size)
281{
282 return page_check_range((target_ulong)addr, size,
283 (type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0;
284}
285
286
287
288
289
290
291
292
293
294
295
296
297#define __put_user_e(x, hptr, e) \
298 (__builtin_choose_expr(sizeof(*(hptr)) == 1, stb_p, \
299 __builtin_choose_expr(sizeof(*(hptr)) == 2, stw_##e##_p, \
300 __builtin_choose_expr(sizeof(*(hptr)) == 4, stl_##e##_p, \
301 __builtin_choose_expr(sizeof(*(hptr)) == 8, stq_##e##_p, abort)))) \
302 ((hptr), (x)), (void)0)
303
304#define __get_user_e(x, hptr, e) \
305 ((x) = (typeof(*hptr))( \
306 __builtin_choose_expr(sizeof(*(hptr)) == 1, ldub_p, \
307 __builtin_choose_expr(sizeof(*(hptr)) == 2, lduw_##e##_p, \
308 __builtin_choose_expr(sizeof(*(hptr)) == 4, ldl_##e##_p, \
309 __builtin_choose_expr(sizeof(*(hptr)) == 8, ldq_##e##_p, abort)))) \
310 (hptr)), (void)0)
311
312#ifdef TARGET_WORDS_BIGENDIAN
313# define __put_user(x, hptr) __put_user_e(x, hptr, be)
314# define __get_user(x, hptr) __get_user_e(x, hptr, be)
315#else
316# define __put_user(x, hptr) __put_user_e(x, hptr, le)
317# define __get_user(x, hptr) __get_user_e(x, hptr, le)
318#endif
319
320
321
322
323
324
325#define put_user(x, gaddr, target_type) \
326({ \
327 abi_ulong __gaddr = (gaddr); \
328 target_type *__hptr; \
329 abi_long __ret = 0; \
330 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
331 __put_user((x), __hptr); \
332 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
333 } else \
334 __ret = -TARGET_EFAULT; \
335 __ret; \
336})
337
338#define get_user(x, gaddr, target_type) \
339({ \
340 abi_ulong __gaddr = (gaddr); \
341 target_type *__hptr; \
342 abi_long __ret = 0; \
343 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
344 __get_user((x), __hptr); \
345 unlock_user(__hptr, __gaddr, 0); \
346 } else { \
347 \
348 (x) = 0; \
349 __ret = -TARGET_EFAULT; \
350 } \
351 __ret; \
352})
353
354#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
355#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
356#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
357#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
358#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
359#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
360#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
361#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
362#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
363#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
364
365#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
366#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
367#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
368#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
369#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
370#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
371#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
372#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
373#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
374#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
375
376
377
378
379
380abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
381abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
382
383
384
385
386
387
388
389
390
391static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
392{
393 if (!access_ok(type, guest_addr, len))
394 return NULL;
395#ifdef DEBUG_REMAP
396 {
397 void *addr;
398 addr = malloc(len);
399 if (copy)
400 memcpy(addr, g2h(guest_addr), len);
401 else
402 memset(addr, 0, len);
403 return addr;
404 }
405#else
406 return g2h(guest_addr);
407#endif
408}
409
410
411
412
413static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
414 long len)
415{
416
417#ifdef DEBUG_REMAP
418 if (!host_ptr)
419 return;
420 if (host_ptr == g2h(guest_addr))
421 return;
422 if (len > 0)
423 memcpy(g2h(guest_addr), host_ptr, len);
424 free(host_ptr);
425#endif
426}
427
428
429
430abi_long target_strlen(abi_ulong gaddr);
431
432
433static inline void *lock_user_string(abi_ulong guest_addr)
434{
435 abi_long len;
436 len = target_strlen(guest_addr);
437 if (len < 0)
438 return NULL;
439 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
440}
441
442
443#define lock_user_struct(type, host_ptr, guest_addr, copy) \
444 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
445#define unlock_user_struct(host_ptr, guest_addr, copy) \
446 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
447
448#include <pthread.h>
449
450
451
452
453
454#include "target_cpu.h"
455#include "target_signal.h"
456#include "target_structs.h"
457
458#endif
459