linux-user/qemu.h

   1 #ifndef GEMU_H
   2 #define GEMU_H
   3
   4 #include "thunk.h"
   5
   6 #include <signal.h>
   7 #include "syscall_defs.h"
   8
   9 #ifdef TARGET_I386
  10 #include "cpu-i386.h"
  11 #include "syscall-i386.h"
  12 #endif
  13
  14 /* This struct is used to hold certain information about the image.
  15  * Basically, it replicates in user space what would be certain
  16  * task_struct fields in the kernel
  17  */
  18 struct image_info {
  19         unsigned long   start_code;
  20         unsigned long   end_code;
  21         unsigned long   end_data;
  22         unsigned long   start_brk;
  23         unsigned long   brk;
  24         unsigned long   start_mmap;
  25         unsigned long   mmap;
  26         unsigned long   rss;
  27         unsigned long   start_stack;
  28         unsigned long   arg_start;
  29         unsigned long   arg_end;
  30         unsigned long   env_start;
  31         unsigned long   env_end;
  32         unsigned long   entry;
  33         int             personality;
  34 };
  35
  36 /* Information about the current linux thread */
  37 struct vm86_saved_state {
  38     uint32_t eax; /* return code */
  39     uint32_t ebx;
  40     uint32_t ecx;
  41     uint32_t edx;
  42     uint32_t esi;
  43     uint32_t edi;
  44     uint32_t ebp;
  45     uint32_t esp;
  46     uint32_t eflags;
  47     uint32_t eip;
  48     uint16_t cs, ss, ds, es, fs, gs;
  49 };
  50
  51 /* NOTE: we force a big alignment so that the stack stored after is
  52    aligned too */
  53 typedef struct TaskState {
  54     struct TaskState *next;
  55     struct target_vm86plus_struct *target_v86;
  56     struct vm86_saved_state vm86_saved_regs;
  57     uint32_t v86flags;
  58     uint32_t v86mask;
  59     int used; /* non zero if used */
  60     uint8_t stack[0];
  61 } __attribute__((aligned(16))) TaskState;
  62
  63 extern TaskState *first_task_state;
  64
  65 int elf_exec(const char * filename, char ** argv, char ** envp,
  66              struct target_pt_regs * regs, struct image_info *infop);
  67
  68 void target_set_brk(char *new_brk);
  69 void syscall_init(void);
  70 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
  71                 long arg4, long arg5, long arg6);
  72 void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
  73 extern CPUX86State *global_env;
  74 void cpu_loop(CPUX86State *env);
  75 void process_pending_signals(void *cpu_env);
  76 void signal_init(void);
  77 int queue_signal(int sig, target_siginfo_t *info);
  78 void init_paths(const char *prefix);
  79 const char *path(const char *pathname);
  80
  81 extern int loglevel;
  82 extern FILE *logfile;
  83
  84 /* vm86.c */
  85 void save_v86_state(CPUX86State *env);
  86 void handle_vm86_trap(CPUX86State *env, int trapno);
  87 void handle_vm86_fault(CPUX86State *env);
  88 int do_vm86(CPUX86State *env, long subfunction,
  89             struct target_vm86plus_struct * target_v86);
  90
  91 #endif