12 #endif /* DEBUG_REMAP */
15 typedef uint32_t abi_ulong
;
16 typedef int32_t abi_long
;
17 #define TARGET_ABI_FMT_lx "%08x"
18 #define TARGET_ABI_FMT_ld "%d"
19 #define TARGET_ABI_FMT_lu "%u"
20 #define TARGET_ABI_BITS 32
22 typedef target_ulong abi_ulong
;
23 typedef target_long abi_long
;
24 #define TARGET_ABI_FMT_lx TARGET_FMT_lx
25 #define TARGET_ABI_FMT_ld TARGET_FMT_ld
26 #define TARGET_ABI_FMT_lu TARGET_FMT_lu
27 #define TARGET_ABI_BITS TARGET_LONG_BITS
28 /* for consistency, define ABI32 too */
29 #if TARGET_ABI_BITS == 32
30 #define TARGET_ABI32 1
35 #include "syscall_defs.h"
37 #include "target_signal.h"
40 /* This struct is used to hold certain information about the image.
41 * Basically, it replicates in user space what would be certain
42 * task_struct fields in the kernel
55 abi_ulong start_stack
;
57 abi_ulong code_offset
;
58 abi_ulong data_offset
;
64 /* Information about the current linux thread */
65 struct vm86_saved_state
{
66 uint32_t eax
; /* return code */
76 uint16_t cs
, ss
, ds
, es
, fs
, gs
;
82 #include "nwfpe/fpa11.h"
85 /* NOTE: we force a big alignment so that the stack stored after is
87 typedef struct TaskState
{
88 struct TaskState
*next
;
94 #if defined(TARGET_I386) && !defined(TARGET_X86_64)
96 struct vm86_saved_state vm86_saved_regs
;
97 struct target_vm86plus_struct vm86plus
;
104 #if defined(TARGET_ARM) || defined(TARGET_M68K)
105 /* Extra fields for semihosted binaries. */
110 int used
; /* non zero if used */
111 struct image_info
*info
;
113 } __attribute__((aligned(16))) TaskState
;
115 extern TaskState
*first_task_state
;
116 extern const char *qemu_uname_release
;
118 /* ??? See if we can avoid exposing so much of the loader internals. */
120 * MAX_ARG_PAGES defines the number of pages allocated for arguments
121 * and envelope for the new program. 32 should suffice, this gives
122 * a maximum env+arg of 128kB w/4KB pages!
124 #define MAX_ARG_PAGES 32
127 * This structure is used to hold the arguments that are
128 * used when loading binaries.
130 struct linux_binprm
{
132 void *page
[MAX_ARG_PAGES
];
139 char * filename
; /* Name of binary */
142 void do_init_thread(struct target_pt_regs
*regs
, struct image_info
*infop
);
143 abi_ulong
loader_build_argptr(int envc
, int argc
, abi_ulong sp
,
144 abi_ulong stringp
, int push_ptr
);
145 int loader_exec(const char * filename
, char ** argv
, char ** envp
,
146 struct target_pt_regs
* regs
, struct image_info
*infop
);
148 int load_elf_binary(struct linux_binprm
* bprm
, struct target_pt_regs
* regs
,
149 struct image_info
* info
);
150 int load_flt_binary(struct linux_binprm
* bprm
, struct target_pt_regs
* regs
,
151 struct image_info
* info
);
152 #ifdef TARGET_HAS_ELFLOAD32
153 int load_elf_binary_multi(struct linux_binprm
*bprm
,
154 struct target_pt_regs
*regs
,
155 struct image_info
*info
);
158 abi_long
memcpy_to_target(abi_ulong dest
, const void *src
,
160 void target_set_brk(abi_ulong new_brk
);
161 abi_long
do_brk(abi_ulong new_brk
);
162 void syscall_init(void);
163 abi_long
do_syscall(void *cpu_env
, int num
, abi_long arg1
,
164 abi_long arg2
, abi_long arg3
, abi_long arg4
,
165 abi_long arg5
, abi_long arg6
);
166 void gemu_log(const char *fmt
, ...) __attribute__((format(printf
,1,2)));
167 extern CPUState
*global_env
;
168 void cpu_loop(CPUState
*env
);
169 void init_paths(const char *prefix
);
170 const char *path(const char *pathname
);
171 char *target_strerror(int err
);
172 int get_osversion(void);
175 extern FILE *logfile
;
178 void print_syscall(int num
,
179 abi_long arg1
, abi_long arg2
, abi_long arg3
,
180 abi_long arg4
, abi_long arg5
, abi_long arg6
);
181 void print_syscall_ret(int num
, abi_long arg1
);
182 extern int do_strace
;
185 void process_pending_signals(void *cpu_env
);
186 void signal_init(void);
187 int queue_signal(int sig
, target_siginfo_t
*info
);
188 void host_to_target_siginfo(target_siginfo_t
*tinfo
, const siginfo_t
*info
);
189 void target_to_host_siginfo(siginfo_t
*info
, const target_siginfo_t
*tinfo
);
190 int target_to_host_signal(int sig
);
191 long do_sigreturn(CPUState
*env
);
192 long do_rt_sigreturn(CPUState
*env
);
193 abi_long
do_sigaltstack(abi_ulong uss_addr
, abi_ulong uoss_addr
, abi_ulong sp
);
197 void save_v86_state(CPUX86State
*env
);
198 void handle_vm86_trap(CPUX86State
*env
, int trapno
);
199 void handle_vm86_fault(CPUX86State
*env
);
200 int do_vm86(CPUX86State
*env
, long subfunction
, abi_ulong v86_addr
);
201 #elif defined(TARGET_SPARC64)
202 void sparc64_set_context(CPUSPARCState
*env
);
203 void sparc64_get_context(CPUSPARCState
*env
);
207 int target_mprotect(abi_ulong start
, abi_ulong len
, int prot
);
208 abi_long
target_mmap(abi_ulong start
, abi_ulong len
, int prot
,
209 int flags
, int fd
, abi_ulong offset
);
210 int target_munmap(abi_ulong start
, abi_ulong len
);
211 abi_long
target_mremap(abi_ulong old_addr
, abi_ulong old_size
,
212 abi_ulong new_size
, unsigned long flags
,
214 int target_msync(abi_ulong start
, abi_ulong len
, int flags
);
218 #define VERIFY_READ 0
219 #define VERIFY_WRITE 1 /* implies read access */
221 static inline int access_ok(int type
, abi_ulong addr
, abi_ulong size
)
223 return page_check_range((target_ulong
)addr
, size
,
224 (type
== VERIFY_READ
) ? PAGE_READ
: (PAGE_READ
| PAGE_WRITE
)) == 0;
227 /* NOTE __get_user and __put_user use host pointers and don't check access. */
228 /* These are usually used to access struct data members once the
229 * struct has been locked - usually with lock_user_struct().
231 #define __put_user(x, hptr)\
233 int size = sizeof(*hptr);\
236 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
239 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
242 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
245 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
253 #define __get_user(x, hptr) \
255 int size = sizeof(*hptr);\
258 x = (typeof(*hptr))*(uint8_t *)(hptr);\
261 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
264 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
267 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
277 /* put_user()/get_user() take a guest address and check access */
278 /* These are usually used to access an atomic data type, such as an int,
279 * that has been passed by address. These internally perform locking
280 * and unlocking on the data type.
282 #define put_user(x, gaddr, target_type) \
284 abi_ulong __gaddr = (gaddr); \
285 target_type *__hptr; \
287 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
288 __ret = __put_user((x), __hptr); \
289 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
291 __ret = -TARGET_EFAULT; \
295 #define get_user(x, gaddr, target_type) \
297 abi_ulong __gaddr = (gaddr); \
298 target_type *__hptr; \
300 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
301 __ret = __get_user((x), __hptr); \
302 unlock_user(__hptr, __gaddr, 0); \
304 /* avoid warning */ \
306 __ret = -TARGET_EFAULT; \
311 #define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
312 #define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
313 #define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
314 #define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
315 #define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
316 #define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
317 #define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
318 #define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
319 #define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
320 #define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
322 #define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
323 #define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
324 #define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
325 #define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
326 #define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
327 #define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
328 #define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
329 #define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
330 #define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
331 #define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
333 /* copy_from_user() and copy_to_user() are usually used to copy data
334 * buffers between the target and host. These internally perform
335 * locking/unlocking of the memory.
337 abi_long
copy_from_user(void *hptr
, abi_ulong gaddr
, size_t len
);
338 abi_long
copy_to_user(abi_ulong gaddr
, void *hptr
, size_t len
);
340 /* Functions for accessing guest memory. The tget and tput functions
341 read/write single values, byteswapping as neccessary. The lock_user
342 gets a pointer to a contiguous area of guest memory, but does not perform
343 and byteswapping. lock_user may return either a pointer to the guest
344 memory, or a temporary buffer. */
346 /* Lock an area of guest memory into the host. If copy is true then the
347 host area will have the same contents as the guest. */
348 static inline void *lock_user(int type
, abi_ulong guest_addr
, long len
, int copy
)
350 if (!access_ok(type
, guest_addr
, len
))
357 memcpy(addr
, g2h(guest_addr
), len
);
359 memset(addr
, 0, len
);
363 return g2h(guest_addr
);
367 /* Unlock an area of guest memory. The first LEN bytes must be
368 flushed back to guest memory. host_ptr = NULL is explicitely
369 allowed and does nothing. */
370 static inline void unlock_user(void *host_ptr
, abi_ulong guest_addr
,
377 if (host_ptr
== g2h(guest_addr
))
380 memcpy(g2h(guest_addr
), host_ptr
, len
);
385 /* Return the length of a string in target memory or -TARGET_EFAULT if
387 abi_long
target_strlen(abi_ulong gaddr
);
389 /* Like lock_user but for null terminated strings. */
390 static inline void *lock_user_string(abi_ulong guest_addr
)
393 len
= target_strlen(guest_addr
);
396 return lock_user(VERIFY_READ
, guest_addr
, (long)(len
+ 1), 1);
399 /* Helper macros for locking/ulocking a target struct. */
400 #define lock_user_struct(type, host_ptr, guest_addr, copy) \
401 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
402 #define unlock_user_struct(host_ptr, guest_addr, copy) \
403 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)