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 long do_sigreturn(CPUState *env);
191 long do_rt_sigreturn(CPUState *env);
192 abi_long do_sigaltstack(abi_ulong uss_addr, abi_ulong uoss_addr, abi_ulong sp);
196 void save_v86_state(CPUX86State *env);
197 void handle_vm86_trap(CPUX86State *env, int trapno);
198 void handle_vm86_fault(CPUX86State *env);
199 int do_vm86(CPUX86State *env, long subfunction, abi_ulong v86_addr);
200 #elif defined(TARGET_SPARC64)
201 void sparc64_set_context(CPUSPARCState *env);
202 void sparc64_get_context(CPUSPARCState *env);
206 int target_mprotect(abi_ulong start, abi_ulong len, int prot);
207 abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
208 int flags, int fd, abi_ulong offset);
209 int target_munmap(abi_ulong start, abi_ulong len);
210 abi_long target_mremap(abi_ulong old_addr, abi_ulong old_size,
211 abi_ulong new_size, unsigned long flags,
213 int target_msync(abi_ulong start, abi_ulong len, int flags);
217 #define VERIFY_READ 0
218 #define VERIFY_WRITE 1 /* implies read access */
220 static inline int access_ok(int type, abi_ulong addr, abi_ulong size)
222 return page_check_range((target_ulong)addr, size,
223 (type == VERIFY_READ) ? PAGE_READ : (PAGE_READ | PAGE_WRITE)) == 0;
226 /* NOTE __get_user and __put_user use host pointers and don't check access. */
227 /* These are usually used to access struct data members once the
228 * struct has been locked - usually with lock_user_struct().
230 #define __put_user(x, hptr)\
232 int size = sizeof(*hptr);\
235 *(uint8_t *)(hptr) = (uint8_t)(typeof(*hptr))(x);\
238 *(uint16_t *)(hptr) = tswap16((typeof(*hptr))(x));\
241 *(uint32_t *)(hptr) = tswap32((typeof(*hptr))(x));\
244 *(uint64_t *)(hptr) = tswap64((typeof(*hptr))(x));\
252 #define __get_user(x, hptr) \
254 int size = sizeof(*hptr);\
257 x = (typeof(*hptr))*(uint8_t *)(hptr);\
260 x = (typeof(*hptr))tswap16(*(uint16_t *)(hptr));\
263 x = (typeof(*hptr))tswap32(*(uint32_t *)(hptr));\
266 x = (typeof(*hptr))tswap64(*(uint64_t *)(hptr));\
276 /* put_user()/get_user() take a guest address and check access */
277 /* These are usually used to access an atomic data type, such as an int,
278 * that has been passed by address. These internally perform locking
279 * and unlocking on the data type.
281 #define put_user(x, gaddr, target_type) \
283 abi_ulong __gaddr = (gaddr); \
284 target_type *__hptr; \
286 if ((__hptr = lock_user(VERIFY_WRITE, __gaddr, sizeof(target_type), 0))) { \
287 __ret = __put_user((x), __hptr); \
288 unlock_user(__hptr, __gaddr, sizeof(target_type)); \
290 __ret = -TARGET_EFAULT; \
294 #define get_user(x, gaddr, target_type) \
296 abi_ulong __gaddr = (gaddr); \
297 target_type *__hptr; \
299 if ((__hptr = lock_user(VERIFY_READ, __gaddr, sizeof(target_type), 1))) { \
300 __ret = __get_user((x), __hptr); \
301 unlock_user(__hptr, __gaddr, 0); \
303 /* avoid warning */ \
305 __ret = -TARGET_EFAULT; \
310 #define put_user_ual(x, gaddr) put_user((x), (gaddr), abi_ulong)
311 #define put_user_sal(x, gaddr) put_user((x), (gaddr), abi_long)
312 #define put_user_u64(x, gaddr) put_user((x), (gaddr), uint64_t)
313 #define put_user_s64(x, gaddr) put_user((x), (gaddr), int64_t)
314 #define put_user_u32(x, gaddr) put_user((x), (gaddr), uint32_t)
315 #define put_user_s32(x, gaddr) put_user((x), (gaddr), int32_t)
316 #define put_user_u16(x, gaddr) put_user((x), (gaddr), uint16_t)
317 #define put_user_s16(x, gaddr) put_user((x), (gaddr), int16_t)
318 #define put_user_u8(x, gaddr) put_user((x), (gaddr), uint8_t)
319 #define put_user_s8(x, gaddr) put_user((x), (gaddr), int8_t)
321 #define get_user_ual(x, gaddr) get_user((x), (gaddr), abi_ulong)
322 #define get_user_sal(x, gaddr) get_user((x), (gaddr), abi_long)
323 #define get_user_u64(x, gaddr) get_user((x), (gaddr), uint64_t)
324 #define get_user_s64(x, gaddr) get_user((x), (gaddr), int64_t)
325 #define get_user_u32(x, gaddr) get_user((x), (gaddr), uint32_t)
326 #define get_user_s32(x, gaddr) get_user((x), (gaddr), int32_t)
327 #define get_user_u16(x, gaddr) get_user((x), (gaddr), uint16_t)
328 #define get_user_s16(x, gaddr) get_user((x), (gaddr), int16_t)
329 #define get_user_u8(x, gaddr) get_user((x), (gaddr), uint8_t)
330 #define get_user_s8(x, gaddr) get_user((x), (gaddr), int8_t)
332 /* copy_from_user() and copy_to_user() are usually used to copy data
333 * buffers between the target and host. These internally perform
334 * locking/unlocking of the memory.
336 abi_long copy_from_user(void *hptr, abi_ulong gaddr, size_t len);
337 abi_long copy_to_user(abi_ulong gaddr, void *hptr, size_t len);
339 /* Functions for accessing guest memory. The tget and tput functions
340 read/write single values, byteswapping as neccessary. The lock_user
341 gets a pointer to a contiguous area of guest memory, but does not perform
342 and byteswapping. lock_user may return either a pointer to the guest
343 memory, or a temporary buffer. */
345 /* Lock an area of guest memory into the host. If copy is true then the
346 host area will have the same contents as the guest. */
347 static inline void *lock_user(int type, abi_ulong guest_addr, long len, int copy)
349 if (!access_ok(type, guest_addr, len))
356 memcpy(addr, g2h(guest_addr), len);
358 memset(addr, 0, len);
362 return g2h(guest_addr);
366 /* Unlock an area of guest memory. The first LEN bytes must be
367 flushed back to guest memory. host_ptr = NULL is explicitely
368 allowed and does nothing. */
369 static inline void unlock_user(void *host_ptr, abi_ulong guest_addr,
376 if (host_ptr == g2h(guest_addr))
379 memcpy(g2h(guest_addr), host_ptr, len);
384 /* Return the length of a string in target memory or -TARGET_EFAULT if
386 abi_long target_strlen(abi_ulong gaddr);
388 /* Like lock_user but for null terminated strings. */
389 static inline void *lock_user_string(abi_ulong guest_addr)
392 len = target_strlen(guest_addr);
395 return lock_user(VERIFY_READ, guest_addr, (long)(len + 1), 1);
398 /* Helper macros for locking/ulocking a target struct. */
399 #define lock_user_struct(type, host_ptr, guest_addr, copy) \
400 (host_ptr = lock_user(type, guest_addr, sizeof(*host_ptr), copy))
401 #define unlock_user_struct(host_ptr, guest_addr, copy) \
402 unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)