7 #include "syscall_defs.h"
12 /* This struct is used to hold certain information about the image.
13 * Basically, it replicates in user space what would be certain
14 * task_struct fields in the kernel
17 unsigned long start_code;
18 unsigned long end_code;
19 unsigned long end_data;
20 unsigned long start_brk;
22 unsigned long start_mmap;
25 unsigned long start_stack;
26 unsigned long arg_start;
27 unsigned long arg_end;
28 unsigned long env_start;
29 unsigned long env_end;
35 /* Information about the current linux thread */
36 struct vm86_saved_state {
37 uint32_t eax; /* return code */
47 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;
56 struct target_vm86plus_struct *target_v86;
57 struct vm86_saved_state vm86_saved_regs;
58 struct target_vm86plus_struct vm86plus;
62 int used; /* non zero if used */
64 } __attribute__((aligned(16))) TaskState;
66 extern TaskState *first_task_state;
68 int elf_exec(const char * filename, char ** argv, char ** envp,
69 struct target_pt_regs * regs, struct image_info *infop);
71 void target_set_brk(char *new_brk);
72 void syscall_init(void);
73 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
74 long arg4, long arg5, long arg6);
75 void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
76 extern CPUState *global_env;
77 void cpu_loop(CPUState *env);
78 void init_paths(const char *prefix);
79 const char *path(const char *pathname);
85 void process_pending_signals(void *cpu_env);
86 void signal_init(void);
87 int queue_signal(int sig, target_siginfo_t *info);
88 void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
89 void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
90 long do_sigreturn(CPUState *env);
91 long do_rt_sigreturn(CPUState *env);
95 void save_v86_state(CPUX86State *env);
96 void handle_vm86_trap(CPUX86State *env, int trapno);
97 void handle_vm86_fault(CPUX86State *env);
98 int do_vm86(CPUX86State *env, long subfunction,
99 struct target_vm86plus_struct * target_v86);
103 int target_mprotect(unsigned long start, unsigned long len, int prot);
104 long target_mmap(unsigned long start, unsigned long len, int prot,
105 int flags, int fd, unsigned long offset);
106 int target_munmap(unsigned long start, unsigned long len);
107 long target_mremap(unsigned long old_addr, unsigned long old_size,
108 unsigned long new_size, unsigned long flags,
109 unsigned long new_addr);
110 int target_msync(unsigned long start, unsigned long len, int flags);