-#ifndef GEMU_H
-#define GEMU_H
+#ifndef QEMU_H
+#define QEMU_H
#include "thunk.h"
#include <signal.h>
+#include <string.h>
#include "syscall_defs.h"
-#ifdef TARGET_I386
-#include "cpu-i386.h"
-#include "syscall-i386.h"
-#endif
+#include "cpu.h"
+#include "syscall.h"
+#include "gdbstub.h"
/* This struct is used to hold certain information about the image.
* Basically, it replicates in user space what would be certain
struct image_info {
unsigned long start_code;
unsigned long end_code;
+ unsigned long start_data;
unsigned long end_data;
unsigned long start_brk;
unsigned long brk;
unsigned long mmap;
unsigned long rss;
unsigned long start_stack;
- unsigned long arg_start;
- unsigned long arg_end;
- unsigned long env_start;
- unsigned long env_end;
unsigned long entry;
+ target_ulong code_offset;
+ target_ulong data_offset;
+ char **host_argv;
int personality;
};
+#ifdef TARGET_I386
/* Information about the current linux thread */
struct vm86_saved_state {
uint32_t eax; /* return code */
uint32_t eip;
uint16_t cs, ss, ds, es, fs, gs;
};
+#endif
+
+#ifdef TARGET_ARM
+/* FPU emulator */
+#include "nwfpe/fpa11.h"
+#endif
/* NOTE: we force a big alignment so that the stack stored after is
aligned too */
typedef struct TaskState {
struct TaskState *next;
- struct target_vm86plus_struct *target_v86;
+#ifdef TARGET_ARM
+ /* FPA state */
+ FPA11 fpa;
+ /* Extra fields for semihosted binaries. */
+ uint32_t stack_base;
+ uint32_t heap_base;
+ uint32_t heap_limit;
+ int swi_errno;
+#endif
+#if defined(TARGET_I386) && !defined(TARGET_X86_64)
+ target_ulong target_v86;
struct vm86_saved_state vm86_saved_regs;
+ struct target_vm86plus_struct vm86plus;
uint32_t v86flags;
uint32_t v86mask;
+#endif
+#ifdef TARGET_M68K
+ int sim_syscalls;
+#endif
int used; /* non zero if used */
+ struct image_info *info;
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
extern TaskState *first_task_state;
+extern const char *qemu_uname_release;
+
+/* ??? See if we can avoid exposing so much of the loader internals. */
+/*
+ * MAX_ARG_PAGES defines the number of pages allocated for arguments
+ * and envelope for the new program. 32 should suffice, this gives
+ * a maximum env+arg of 128kB w/4KB pages!
+ */
+#define MAX_ARG_PAGES 32
-int elf_exec(const char * filename, char ** argv, char ** envp,
+/*
+ * This structure is used to hold the arguments that are
+ * used when loading binaries.
+ */
+struct linux_binprm {
+ char buf[128];
+ void *page[MAX_ARG_PAGES];
+ unsigned long p;
+ int fd;
+ int e_uid, e_gid;
+ int argc, envc;
+ char **argv;
+ char **envp;
+ char * filename; /* Name of binary */
+};
+
+void do_init_thread(struct target_pt_regs *regs, struct image_info *infop);
+target_ulong loader_build_argptr(int envc, int argc, target_ulong sp,
+ target_ulong stringp, int push_ptr);
+int loader_exec(const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs, struct image_info *infop);
-void target_set_brk(char *new_brk);
+int load_elf_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
+ struct image_info * info);
+int load_flt_binary(struct linux_binprm * bprm, struct target_pt_regs * regs,
+ struct image_info * info);
+
+void memcpy_to_target(target_ulong dest, const void *src,
+ unsigned long len);
+void target_set_brk(target_ulong new_brk);
+long do_brk(target_ulong new_brk);
void syscall_init(void);
long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3,
long arg4, long arg5, long arg6);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
-extern CPUX86State *global_env;
-void cpu_loop(CPUX86State *env);
-void process_pending_signals(void *cpu_env);
-void signal_init(void);
-int queue_signal(int sig, target_siginfo_t *info);
+extern CPUState *global_env;
+void cpu_loop(CPUState *env);
void init_paths(const char *prefix);
const char *path(const char *pathname);
extern int loglevel;
extern FILE *logfile;
+/* signal.c */
+void process_pending_signals(void *cpu_env);
+void signal_init(void);
+int queue_signal(int sig, target_siginfo_t *info);
+void host_to_target_siginfo(target_siginfo_t *tinfo, const siginfo_t *info);
+void target_to_host_siginfo(siginfo_t *info, const target_siginfo_t *tinfo);
+long do_sigreturn(CPUState *env);
+long do_rt_sigreturn(CPUState *env);
+
+#ifdef TARGET_I386
/* vm86.c */
void save_v86_state(CPUX86State *env);
void handle_vm86_trap(CPUX86State *env, int trapno);
void handle_vm86_fault(CPUX86State *env);
-int do_vm86(CPUX86State *env, long subfunction,
- struct target_vm86plus_struct * target_v86);
+int do_vm86(CPUX86State *env, long subfunction, target_ulong v86_addr);
+#endif
/* mmap.c */
-int target_mprotect(unsigned long start, unsigned long len, int prot);
-long target_mmap(unsigned long start, unsigned long len, int prot,
- int flags, int fd, unsigned long offset);
-int target_munmap(unsigned long start, unsigned long len);
-long target_mremap(unsigned long old_addr, unsigned long old_size,
- unsigned long new_size, unsigned long flags,
- unsigned long new_addr);
-int target_msync(unsigned long start, unsigned long len, int flags);
+int target_mprotect(target_ulong start, target_ulong len, int prot);
+long target_mmap(target_ulong start, target_ulong len, int prot,
+ int flags, int fd, target_ulong offset);
+int target_munmap(target_ulong start, target_ulong len);
+long target_mremap(target_ulong old_addr, target_ulong old_size,
+ target_ulong new_size, unsigned long flags,
+ target_ulong new_addr);
+int target_msync(target_ulong start, target_ulong len, int flags);
+
+/* user access */
+
+#define VERIFY_READ 0
+#define VERIFY_WRITE 1
+
+#define access_ok(type,addr,size) (1)
+
+/* NOTE get_user and put_user use host addresses. */
+#define __put_user(x,ptr)\
+({\
+ int size = sizeof(*ptr);\
+ switch(size) {\
+ case 1:\
+ *(uint8_t *)(ptr) = (typeof(*ptr))(x);\
+ break;\
+ case 2:\
+ *(uint16_t *)(ptr) = tswap16((typeof(*ptr))(x));\
+ break;\
+ case 4:\
+ *(uint32_t *)(ptr) = tswap32((typeof(*ptr))(x));\
+ break;\
+ case 8:\
+ *(uint64_t *)(ptr) = tswap64((typeof(*ptr))(x));\
+ break;\
+ default:\
+ abort();\
+ }\
+ 0;\
+})
+
+#define __get_user(x, ptr) \
+({\
+ int size = sizeof(*ptr);\
+ switch(size) {\
+ case 1:\
+ x = (typeof(*ptr))*(uint8_t *)(ptr);\
+ break;\
+ case 2:\
+ x = (typeof(*ptr))tswap16(*(uint16_t *)(ptr));\
+ break;\
+ case 4:\
+ x = (typeof(*ptr))tswap32(*(uint32_t *)(ptr));\
+ break;\
+ case 8:\
+ x = (typeof(*ptr))tswap64(*(uint64_t *)(ptr));\
+ break;\
+ default:\
+ abort();\
+ }\
+ 0;\
+})
+
+#define put_user(x,ptr)\
+({\
+ int __ret;\
+ if (access_ok(VERIFY_WRITE, ptr, sizeof(*ptr)))\
+ __ret = __put_user(x, ptr);\
+ else\
+ __ret = -EFAULT;\
+ __ret;\
+})
+#define get_user(x,ptr)\
+({\
+ int __ret;\
+ if (access_ok(VERIFY_READ, ptr, sizeof(*ptr)))\
+ __ret = __get_user(x, ptr);\
+ else\
+ __ret = -EFAULT;\
+ __ret;\
+})
+
+/* Functions for accessing guest memory. The tget and tput functions
+ read/write single values, byteswapping as neccessary. The lock_user
+ gets a pointer to a contiguous area of guest memory, but does not perform
+ and byteswapping. lock_user may return either a pointer to the guest
+ memory, or a temporary buffer. */
+
+/* Lock an area of guest memory into the host. If copy is true then the
+ host area will have the same contents as the guest. */
+static inline void *lock_user(target_ulong guest_addr, long len, int copy)
+{
+#ifdef DEBUG_REMAP
+ void *addr;
+ addr = malloc(len);
+ if (copy)
+ memcpy(addr, g2h(guest_addr), len);
+ else
+ memset(addr, 0, len);
+ return addr;
+#else
+ return g2h(guest_addr);
+#endif
+}
+
+/* Unlock an area of guest memory. The first LEN bytes must be flushed back
+ to guest memory. */
+static inline void unlock_user(void *host_addr, target_ulong guest_addr,
+ long len)
+{
+#ifdef DEBUG_REMAP
+ if (host_addr == g2h(guest_addr))
+ return;
+ if (len > 0)
+ memcpy(g2h(guest_addr), host_addr, len);
+ free(host_addr);
+#endif
+}
+
+/* Return the length of a string in target memory. */
+static inline int target_strlen(target_ulong ptr)
+{
+ return strlen(g2h(ptr));
+}
+
+/* Like lock_user but for null terminated strings. */
+static inline void *lock_user_string(target_ulong guest_addr)
+{
+ long len;
+ len = target_strlen(guest_addr) + 1;
+ return lock_user(guest_addr, len, 1);
+}
+
+/* Helper macros for locking/ulocking a target struct. */
+#define lock_user_struct(host_ptr, guest_addr, copy) \
+ host_ptr = lock_user(guest_addr, sizeof(*host_ptr), copy)
+#define unlock_user_struct(host_ptr, guest_addr, copy) \
+ unlock_user(host_ptr, guest_addr, (copy) ? sizeof(*host_ptr) : 0)
+
+#define tget8(addr) ldub(addr)
+#define tput8(addr, val) stb(addr, val)
+#define tget16(addr) lduw(addr)
+#define tput16(addr, val) stw(addr, val)
+#define tget32(addr) ldl(addr)
+#define tput32(addr, val) stl(addr, val)
+#define tget64(addr) ldq(addr)
+#define tput64(addr, val) stq(addr, val)
+#if TARGET_LONG_BITS == 64
+#define tgetl(addr) ldq(addr)
+#define tputl(addr, val) stq(addr, val)
+#else
+#define tgetl(addr) ldl(addr)
+#define tputl(addr, val) stl(addr, val)
#endif
+
+#endif /* QEMU_H */
projects / qemu.git / blobdiff