git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1383 c046a42c-6fe2-441c-8c8c-71466251a162
247 lines
6 KiB
C
247 lines
6 KiB
C
#ifndef QEMU_H
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#define QEMU_H
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#include "thunk.h"
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#include <signal.h>
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#include <string.h>
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#include "syscall_defs.h"
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#include "cpu.h"
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#include "syscall.h"
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#include "gdbstub.h"
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/* This struct is used to hold certain information about the image.
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* Basically, it replicates in user space what would be certain
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* task_struct fields in the kernel
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*/
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struct image_info {
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unsigned long start_code;
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unsigned long end_code;
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unsigned long end_data;
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unsigned long start_brk;
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unsigned long brk;
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unsigned long start_mmap;
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unsigned long mmap;
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unsigned long rss;
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unsigned long start_stack;
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unsigned long arg_start;
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unsigned long arg_end;
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unsigned long env_start;
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unsigned long env_end;
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unsigned long entry;
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int personality;
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};
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#ifdef TARGET_I386
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/* Information about the current linux thread */
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struct vm86_saved_state {
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uint32_t eax; /* return code */
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uint32_t ebx;
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uint32_t ecx;
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uint32_t edx;
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uint32_t esi;
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uint32_t edi;
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uint32_t ebp;
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uint32_t esp;
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uint32_t eflags;
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uint32_t eip;
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uint16_t cs, ss, ds, es, fs, gs;
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};
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#endif
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#ifdef TARGET_ARM
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/* FPU emulator */
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#include "nwfpe/fpa11.h"
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#endif
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/* NOTE: we force a big alignment so that the stack stored after is
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aligned too */
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typedef struct TaskState {
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struct TaskState *next;
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#ifdef TARGET_ARM
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/* FPA state */
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FPA11 fpa;
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/* Extra fields for semihosted binaries. */
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uint32_t stack_base;
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uint32_t heap_base;
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uint32_t heap_limit;
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int swi_errno;
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#endif
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#ifdef TARGET_I386
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struct target_vm86plus_struct *target_v86;
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struct vm86_saved_state vm86_saved_regs;
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struct target_vm86plus_struct vm86plus;
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uint32_t v86flags;
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uint32_t v86mask;
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#endif
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int used; /* non zero if used */
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uint8_t stack[0];
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} __attribute__((aligned(16))) TaskState;
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extern TaskState *first_task_state;
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int elf_exec(const char * filename, char ** argv, char ** envp,
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struct target_pt_regs * regs, struct image_info *infop);
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void target_set_brk(char *new_brk);
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long do_brk(char *new_brk);
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void syscall_init(void);
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long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
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long arg4, long arg5, long arg6);
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void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
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extern CPUState *global_env;
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void cpu_loop(CPUState *env);
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void init_paths(const char *prefix);
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const char *path(const char *pathname);
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extern int loglevel;
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extern FILE *logfile;
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/* signal.c */
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void process_pending_signals(void *cpu_env);
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void signal_init(void);
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int queue_signal(int sig, target_siginfo_t *info);
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void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
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void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
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long do_sigreturn(CPUState *env);
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long do_rt_sigreturn(CPUState *env);
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#ifdef TARGET_I386
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/* vm86.c */
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void save_v86_state(CPUX86State *env);
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void handle_vm86_trap(CPUX86State *env, int trapno);
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void handle_vm86_fault(CPUX86State *env);
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int do_vm86(CPUX86State *env, long subfunction,
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struct target_vm86plus_struct * target_v86);
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#endif
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/* mmap.c */
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int target_mprotect(unsigned long start, unsigned long len, int prot);
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long target_mmap(unsigned long start, unsigned long len, int prot,
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int flags, int fd, unsigned long offset);
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int target_munmap(unsigned long start, unsigned long len);
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long target_mremap(unsigned long old_addr, unsigned long old_size,
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unsigned long new_size, unsigned long flags,
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unsigned long new_addr);
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int target_msync(unsigned long start, unsigned long len, int flags);
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/* user access */
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#define VERIFY_READ 0
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#define VERIFY_WRITE 1
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#define access_ok(type,addr,size) (1)
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#define __put_user(x,ptr)\
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({\
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int size = sizeof(*ptr);\
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switch(size) {\
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case 1:\
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stb(ptr, (typeof(*ptr))(x));\
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break;\
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case 2:\
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stw(ptr, (typeof(*ptr))(x));\
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break;\
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case 4:\
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stl(ptr, (typeof(*ptr))(x));\
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break;\
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case 8:\
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stq(ptr, (typeof(*ptr))(x));\
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break;\
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default:\
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abort();\
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}\
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0;\
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})
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#define __get_user(x, ptr) \
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({\
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int size = sizeof(*ptr);\
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switch(size) {\
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case 1:\
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x = (typeof(*ptr))ldub((void *)ptr);\
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break;\
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case 2:\
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x = (typeof(*ptr))lduw((void *)ptr);\
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break;\
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case 4:\
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x = (typeof(*ptr))ldl((void *)ptr);\
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break;\
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case 8:\
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x = (typeof(*ptr))ldq((void *)ptr);\
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break;\
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default:\
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abort();\
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}\
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0;\
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})
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static inline unsigned long __copy_to_user(void *dst, const void *src,
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unsigned long size)
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{
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memcpy(dst, src, size);
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return 0;
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}
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static inline unsigned long __copy_from_user(void *dst, const void *src,
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unsigned long size)
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{
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memcpy(dst, src, size);
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return 0;
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}
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static inline unsigned long __clear_user(void *dst, unsigned long size)
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{
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memset(dst, 0, size);
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return 0;
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}
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#define put_user(x,ptr)\
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({\
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int __ret;\
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if (access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)))\
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__ret = __put_user(x, ptr);\
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else\
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__ret = -EFAULT;\
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__ret;\
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})
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#define get_user(x,ptr)\
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({\
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int __ret;\
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if (access_ok(VERIFY_READ, ptr, sizeof(*ptr)))\
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__ret = __get_user(x, ptr);\
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else\
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__ret = -EFAULT;\
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__ret;\
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})
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static inline unsigned long copy_to_user(void *dst, const void *src,
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unsigned long size)
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{
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if (access_ok(VERIFY_WRITE, dst, size))
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return __copy_to_user(dst, src, size);
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else
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return size;
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}
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static inline unsigned long copy_from_user(void *dst, const void *src,
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unsigned long size)
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{
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if (access_ok(VERIFY_READ, src, size))
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return __copy_from_user(dst, src, size);
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else
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return size;
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}
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static inline unsigned long clear_user(void *dst, unsigned long size)
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{
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if (access_ok(VERIFY_WRITE, dst, size))
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return __clear_user(dst, size);
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else
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return size;
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}
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#endif /* QEMU_H */
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