7 #include "syscall_defs.h"
11 #include "syscall-i386.h"
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
19 unsigned long start_code;
20 unsigned long end_code;
21 unsigned long end_data;
22 unsigned long start_brk;
24 unsigned long start_mmap;
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;
36 /* Information about the current linux thread */
37 struct vm86_saved_state {
38 uint32_t eax; /* return code */
48 uint16_t cs, ss, ds, es, fs, gs;
51 /* NOTE: we force a big alignment so that the stack stored after is
53 typedef struct TaskState {
54 struct TaskState *next;
55 struct target_vm86plus_struct *target_v86;
56 struct vm86_saved_state vm86_saved_regs;
59 int used; /* non zero if used */
61 } __attribute__((aligned(16))) TaskState;
63 extern TaskState *first_task_state;
65 int elf_exec(const char * filename, char ** argv, char ** envp,
66 struct target_pt_regs * regs, struct image_info *infop);
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);
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);
92 int target_mprotect(unsigned long start, unsigned long len, int prot);
93 long target_mmap(unsigned long start, unsigned long len, int prot,
94 int flags, int fd, unsigned long offset);
95 int target_munmap(unsigned long start, unsigned long len);
96 long target_mremap(unsigned long old_addr, unsigned long old_size,
97 unsigned long new_size, unsigned long flags,
98 unsigned long new_addr);
99 int target_msync(unsigned long start, unsigned long len, int flags);