12
#endif /* DEBUG_REMAP */
14
#include "qemu-types.h"
22
#include "syscall_defs.h"
24
#include "target_signal.h"
28
#define THREAD __thread
33
/* This struct is used to hold certain information about the image.
34
* Basically, it replicates in user space what would be certain
35
* task_struct fields in the kernel
48
abi_ulong start_stack;
50
abi_ulong code_offset;
51
abi_ulong data_offset;
56
#define MAX_SIGQUEUE_SIZE 1024
59
struct sigqueue *next;
60
//target_siginfo_t info;
63
struct emulated_sigtable {
64
int pending; /* true if signal is pending */
65
struct sigqueue *first;
66
struct sigqueue info; /* in order to always have memory for the
67
first signal, we put it here */
70
/* NOTE: we force a big alignment so that the stack stored after is
72
typedef struct TaskState {
73
struct TaskState *next;
74
int used; /* non zero if used */
75
struct image_info *info;
77
struct emulated_sigtable sigtab[TARGET_NSIG];
78
struct sigqueue sigqueue_table[MAX_SIGQUEUE_SIZE]; /* siginfo queue */
79
struct sigqueue *first_free; /* first free siginfo queue entry */
80
int signal_pending; /* non zero if a signal may be pending */
83
} __attribute__((aligned(16))) TaskState;
85
void init_task_state(TaskState *ts);
86
extern const char *qemu_uname_release;
88
/* ??? See if we can avoid exposing so much of the loader internals. */
90
* MAX_ARG_PAGES defines the number of pages allocated for arguments
91
* and envelope for the new program. 32 should suffice, this gives
92
* a maximum env+arg of 128kB w/4KB pages!
94
#define MAX_ARG_PAGES 32
97
* This structure is used to hold the arguments that are
98
* used when loading binaries.
100
struct linux_binprm {
102
void *page[MAX_ARG_PAGES];
109
char * filename; /* Name of binary */
112
void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
113
abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
114
abi_ulong stringp, int push_ptr);
115
int loader_exec(const char * filename, char ** argv, char ** envp,
116
struct target_pt_regs * regs, struct image_info *infop);
118
int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
119
struct image_info * info);
120
int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
121
struct image_info * info);
123
abi_long memcpy_to_target(abi_ulong dest, const void *src,
125
void target_set_brk(abi_ulong new_brk);
126
abi_long do_brk(abi_ulong new_brk);
127
void syscall_init(void);
128
abi_long do_freebsd_syscall(void *cpu_env, int num, abi_long arg1,
129
abi_long arg2, abi_long arg3, abi_long arg4,
130
abi_long arg5, abi_long arg6);
131
abi_long do_netbsd_syscall(void *cpu_env, int num, abi_long arg1,
132
abi_long arg2, abi_long arg3, abi_long arg4,
133
abi_long arg5, abi_long arg6);
134
abi_long do_openbsd_syscall(void *cpu_env, int num, abi_long arg1,
135
abi_long arg2, abi_long arg3, abi_long arg4,
136
abi_long arg5, abi_long arg6);
137
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
138
extern THREAD CPUState *thread_env;
139
void cpu_loop(CPUState *env, enum BSDType bsd_type);
140
void init_paths(const char *prefix);
141
const char *path(const char *pathname);
142
char *target_strerror(int err);
143
int get_osversion(void);
144
void fork_start(void);
145
void fork_end(int child);
147
#include "qemu-log.h"
151
print_freebsd_syscall(int num,
152
abi_long arg1, abi_long arg2, abi_long arg3,
153
abi_long arg4, abi_long arg5, abi_long arg6);
154
void print_freebsd_syscall_ret(int num, abi_long ret);
156
print_netbsd_syscall(int num,
157
abi_long arg1, abi_long arg2, abi_long arg3,
158
abi_long arg4, abi_long arg5, abi_long arg6);
159
void print_netbsd_syscall_ret(int num, abi_long ret);
161
print_openbsd_syscall(int num,
162
abi_long arg1, abi_long arg2, abi_long arg3,
163
abi_long arg4, abi_long arg5, abi_long arg6);
164
void print_openbsd_syscall_ret(int num, abi_long ret);
165
extern int do_strace;
168
void process_pending_signals(CPUState *cpu_env);
169
void signal_init(void);
170
//int queue_signal(CPUState *env, int sig, target_siginfo_t *info);
171
//void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
172
//void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
173
long do_sigreturn(CPUState *env);
174
long do_rt_sigreturn(CPUState *env);
175
abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
178
int target_mprotect(abi_ulong start, abi_ulong len, int prot);
179
abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
180
int flags, int fd, abi_ulong offset);
181
int target_munmap(abi_ulong start, abi_ulong len);
182
abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
183
abi_ulong new_size, unsigned long flags,
185
int target_msync(abi_ulong start, abi_ulong len, int flags);
186
extern unsigned long last_brk;
187
void mmap_lock(void);
188
void mmap_unlock(void);
189
#if defined(USE_NPTL)
190
void mmap_fork_start(void);
191
void mmap_fork_end(int child);
196
#define VERIFY_READ 0
197
#define VERIFY_WRITE 1 /* implies read access */
199
static inline int access_ok(int type, abi_ulong addr, abi_ulong size)
201
return page_check_range((target_ulong)addr, size,
202
(type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0;
205
/* NOTE __get_user and __put_user use host pointers and don't check access. */
206
/* These are usually used to access struct data members once the
207
* struct has been locked - usually with lock_user_struct().
209
#define __put_user(x, hptr)\
211
int size = sizeof(*hptr);\
214
*(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
217
*(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
220
*(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
223
*(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
231
#define __get_user(x, hptr) \
233
int size = sizeof(*hptr);\
236
x = (typeof(*hptr))*(uint8_t *)(hptr);\
239
x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
242
x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
245
x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
255
/* put_user()/get_user() take a guest address and check access */
256
/* These are usually used to access an atomic data type, such as an int,
257
* that has been passed by address. These internally perform locking
258
* and unlocking on the data type.
260
#define put_user(x, gaddr, target_type) \
262
abi_ulong __gaddr = (gaddr); \
263
target_type *__hptr; \
265
if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
266
__ret = __put_user((x), __hptr); \
267
unlock_user(__hptr, __gaddr, sizeof(target_type)); \
269
__ret = -TARGET_EFAULT; \
273
#define get_user(x, gaddr, target_type) \
275
abi_ulong __gaddr = (gaddr); \
276
target_type *__hptr; \
278
if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
279
__ret = __get_user((x), __hptr); \
280
unlock_user(__hptr, __gaddr, 0); \
282
/* avoid warning */ \
284
__ret = -TARGET_EFAULT; \
289
#define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
290
#define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
291
#define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
292
#define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
293
#define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
294
#define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
295
#define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
296
#define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
297
#define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
298
#define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
300
#define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
301
#define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
302
#define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
303
#define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
304
#define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
305
#define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
306
#define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
307
#define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
308
#define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
309
#define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
311
/* copy_from_user() and copy_to_user() are usually used to copy data
312
* buffers between the target and host. These internally perform
313
* locking/unlocking of the memory.
315
abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
316
abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
318
/* Functions for accessing guest memory. The tget and tput functions
319
read/write single values, byteswapping as neccessary. The lock_user
320
gets a pointer to a contiguous area of guest memory, but does not perform
321
and byteswapping. lock_user may return either a pointer to the guest
322
memory, or a temporary buffer. */
324
/* Lock an area of guest memory into the host. If copy is true then the
325
host area will have the same contents as the guest. */
326
static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
328
if (!access_ok(type, guest_addr, len))
335
memcpy(addr, g2h(guest_addr), len);
337
memset(addr, 0, len);
341
return g2h(guest_addr);
345
/* Unlock an area of guest memory. The first LEN bytes must be
346
flushed back to guest memory. host_ptr = NULL is explicitly
347
allowed and does nothing. */
348
static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
355
if (host_ptr == g2h(guest_addr))
358
memcpy(g2h(guest_addr), host_ptr, len);
363
/* Return the length of a string in target memory or -TARGET_EFAULT if
365
abi_long target_strlen(abi_ulong gaddr);
367
/* Like lock_user but for null terminated strings. */
368
static inline void *lock_user_string(abi_ulong guest_addr)
371
len = target_strlen(guest_addr);
374
return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
377
/* Helper macros for locking/ulocking a target struct. */
378
#define lock_user_struct(type, host_ptr, guest_addr, copy) \
379
(host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
380
#define unlock_user_struct(host_ptr, guest_addr, copy) \
381
unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
383
#if defined(USE_NPTL)
added
removed
bsd-user/qemu.h
