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Darwin userspace emulation, by Pierre d'Herbemont.

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2332 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
ths 2007-01-18 20:06:33 +00:00
parent 54421cb17b
commit 831b78254c
13 changed files with 4996 additions and 11 deletions
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179
darwin-user/qemu.h Normal file
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#ifndef GEMU_H
#define GEMU_H
#include "thunk.h"
#include <signal.h>
#include <string.h>
#include "cpu.h"
#include "gdbstub.h"
typedef siginfo_t target_siginfo_t;
#define target_sigaction sigaction
#ifdef TARGET_I386
struct target_pt_regs {
long ebx;
long ecx;
long edx;
long esi;
long edi;
long ebp;
long eax;
int xds;
int xes;
long orig_eax;
long eip;
int xcs;
long eflags;
long esp;
int xss;
};
struct target_sigcontext {
int sc_onstack;
int sc_mask;
int sc_eax;
int sc_ebx;
int sc_ecx;
int sc_edx;
int sc_edi;
int sc_esi;
int sc_ebp;
int sc_esp;
int sc_ss;
int sc_eflags;
int sc_eip;
int sc_cs;
int sc_ds;
int sc_es;
int sc_fs;
int sc_gs;
};
#define __USER_CS (0x17)
#define __USER_DS (0x1F)
#elif defined(TARGET_PPC)
struct target_pt_regs {
unsigned long gpr[32];
unsigned long nip;
unsigned long msr;
unsigned long orig_gpr3; /* Used for restarting system calls */
unsigned long ctr;
unsigned long link;
unsigned long xer;
unsigned long ccr;
unsigned long mq; /* 601 only (not used at present) */
/* Used on APUS to hold IPL value. */
unsigned long trap; /* Reason for being here */
unsigned long dar; /* Fault registers */
unsigned long dsisr;
unsigned long result; /* Result of a system call */
};
struct target_sigcontext {
int sc_onstack; /* sigstack state to restore */
int sc_mask; /* signal mask to restore */
int sc_ir; /* pc */
int sc_psw; /* processor status word */
int sc_sp; /* stack pointer if sc_regs == NULL */
void *sc_regs; /* (kernel private) saved state */
};
#endif
typedef struct TaskState {
struct TaskState *next;
int used; /* non zero if used */
uint8_t stack[0];
} __attribute__((aligned(16))) TaskState;
void syscall_init(void);
long do_mach_syscall(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
long do_thread_syscall(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
long do_unix_syscall(void *cpu_env, int num);
int do_sigaction(int sig, const struct sigaction *act,
struct sigaction *oact);
int do_sigaltstack(const struct sigaltstack *ss, struct sigaltstack *oss);
void gemu_log(const char *fmt, ...) __attribute__((format(printf,1,2)));
void qerror(const char *fmt, ...);
void write_dt(void *ptr, unsigned long addr, unsigned long limit, int flags);
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;
/* commpage.c */
void commpage_init();
void do_commpage(void *cpu_env, int num, uint32_t arg1, uint32_t arg2, uint32_t arg3,
uint32_t arg4, uint32_t arg5, uint32_t arg6, uint32_t arg7, uint32_t arg8);
/* 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, int num);
/* machload.c */
int mach_exec(const char * filename, char ** argv, char ** envp,
struct target_pt_regs * regs);
/* 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);
/* user access */
/* XXX: todo protect every memory access */
#define lock_user(x,y,z) (void*)(x)
#define unlock_user(x,y,z)
/* Mac OS X ABI arguments processing */
#ifdef TARGET_I386
static inline uint32_t get_int_arg(int *i, CPUX86State *cpu_env)
{
uint32_t *args = (uint32_t*)(cpu_env->regs[R_ESP] + 4 + *i);
*i+=4;
return tswap32(*args);
}
static inline uint64_t get_int64_arg(int *i, CPUX86State *cpu_env)
{
uint64_t *args = (uint64_t*)(cpu_env->regs[R_ESP] + 4 + *i);
*i+=8;
return tswap64(*args);
}
#elif defined(TARGET_PPC)
static inline uint32_t get_int_arg(int *i, CPUPPCState *cpu_env)
{
/* XXX: won't work when args goes on stack after gpr10 */
uint32_t args = (uint32_t)(cpu_env->gpr[3+(*i & 0xff)/4]);
*i+=4;
return tswap32(args);
}
static inline uint64_t get_int64_arg(int *i, CPUPPCState *cpu_env)
{
/* XXX: won't work when args goes on stack after gpr10 */
uint64_t args = (uint64_t)(cpu_env->fpr[1+(*i >> 8)/8]);
*i+=(8 << 8) + 8;
return tswap64(args);
}
#endif
#endif