machdep.h

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/*
** machdep.h for  in /root/work/lseos-0.2.5/libsys/machdep
** 
** Copyright (c)2004 Vianney Rancurel
** Login   <vianney@epita.fr>
** 
** Started on  Wed Apr 28 13:28:32 2004 Vianney Rancurel
 ** Last update Fri Feb 25 15:36:54 2005 Olivier Dembour
*/
#ifndef __MACHDEP_MACHDEP_H__
#define __MACHDEP_MACHDEP_H__   1

#include <machdep/asm.h>
#include <machdep/param.h>
#include <machdep/stdarg.h>
#include <machdep/segments.h>
#include <machdep/cpufunc.h>
#include <machdep/tss.h>
#include <machdep/limits.h>
#include <machdep/kinfo.h>
#include <machdep/pte.h>
#include <machdep/npx.h>
#include <machdep/lock.h>
#include <machdep/psl.h>
#include <machdep/specialreg.h>
#include <machdep/frame.h>
#include <machdep/byte_swap.h>
#include <machdep/ieeefp.h>
#include <machdep/conio.h>
#include <machdep/gates.h> 
#include <machdep/gatesdef.h>
#include <machdep/setjmp.h>

#define ntohl(x)        ((in_addr_t)__byte_swap_long((in_addr_t)(x)))
#define ntohs(x)        ((in_port_t)__byte_swap_word((in_port_t)(x)))
#define htonl(x)        ((in_addr_t)__byte_swap_long((in_addr_t)(x)))
#define htons(x)        ((in_port_t)__byte_swap_word((in_port_t)(x)))

#define QUAD_HIGH(Quad) ((int32_t) (((quad_t)(Quad)) >> 32))
#define QUAD_LOW(Quad)  ((int32_t) (((quad_t)(Quad)) & 0xffffffffLL))
#define QUAD_MAKE(High, Low)    ((((quad_t)(High)) << 32)|\
                                (((quad_t)(Low)) & 0xffffffffLL))

/*
 * info located at end of user address space
 */
typedef struct  s_pinfo
{
  vaddr_t       wd;     
  vaddr_t       envp;
  u_int32_t     nfdescs;
  vaddr_t       fdescs;
  int32_t       fs_gate;
  u_int32_t     progopts;
#define PROGOPT_EXECVE_BOOTFS           (1<<0u)
#define PROGOPT_EXECVE_SHOW_ERRMSG      (1<<1u)
#define PROGOPT_EMULATE_VFS             (1<<2u)
#define PROGOPT_RT_MALLOC               (1<<3u)
#define PROGOPT_SHARE_BINARIES          (1<<4u)
#define PROGOPT_THREAD_WITH_IOMAP       (1<<5u)
  u_int32_t     execve_nbstkpgs;
}               t_pinfo;
#define PINFO_VADDR     (MAX_UADDR - sizeof (t_pinfo))

typedef struct  s_fdesc
{
  int           not_avail;      
  resid_t       resid;          
  u_int32_t     statusfl;       
  u_int32_t     fl;             
}               t_fdesc;

static __inline void
nope(void)
{
  /* nothing */
}


#define CORE_SYSCALL5(RetVal, Arg0, Arg1, Arg2, Arg3, Arg4, Arg5) \
asm volatile ("int $0x81" \
        : "=a" (RetVal), "=c" (suberrno), "=b" (errno) \
        : "a" (Arg0), "b" ((long)(Arg1)), "c" ((long)(Arg2)), \
          "d" ((long)(Arg3)), "S" ((long)(Arg4)), "D" ((long)(Arg5)))

/*
 * error codes manipulation routines
 */
#define EC_DECL         int __errno_save, __suberrno_save
#define EC_SAVE         __errno_save = errno;__suberrno_save = suberrno
#define EC_RESTORE      errno = __errno_save;suberrno = __suberrno_save

/*
 * trace macros
 */
#define TRACE_IN(Str, Tcb) \
  if ((Tcb)->flags & TCBF_TRACED) \
    { \
      dprintf("%s: (%s) pid 0x%qx 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n", \
             (Str), (Tcb)->name, (Tcb)->pid, \
             (Tcb)->tss.eax, (Tcb)->tss.ebx, (Tcb)->tss.ecx, \
             (Tcb)->tss.edx, (Tcb)->tss.esi, (Tcb)->tss.edi); \
    }
#define TRACE_OUT(Str, Tcb) \
  if ((Tcb)->flags & TCBF_TRACED) \
    { \
      dprintf("%s: =0x%x 0x%x 0x%x\n", \
             (Str), \
             (Tcb)->tss.eax, (Tcb)->tss.ebx, (Tcb)->tss.ecx); \
    }

typedef void (*t_nmi_fn)();

/*
 * misc protos 
 */
int     core_syscall(int arg1, int arg2, int arg3, int arg4,
                     int arg5, int arg6);
int     gate_syscall(int gate, int arg1, int arg2, int arg3,
                     int arg4, int arg5, int arg6);

int     rtr(void);
int     ltr(int tr);

void    *alloca(size_t size);

extern void nmi_0();extern void nmi_1();extern void nmi_2();
extern void nmi_3();extern void nmi_4();extern void nmi_5();
extern void nmi_6();extern void nmi_7();extern void nmi_8();
extern void nmi_9();extern void nmi_10();extern void nmi_10();
extern void nmi_11();extern void nmi_12();extern void nmi_13();
extern void nmi_14();extern void nmi_15();extern void nmi_16();
extern void nmi_17();extern void nmi_18();extern void nmi_19();

/*
 * globals
 */
extern t_nmi_fn         nmi_fns[];
extern int              nb_nmi_fns;

extern int              fs_gate;

extern int              nb_fdescs;
extern t_fdesc          *fdescs;

extern char             **environ;
extern int              errno, suberrno;
extern const char       *const sys_errlist[];
extern const int        sys_nerr;

extern u_int32_t        progopts;
#define EMULATE_VFS()   (progopts & PROGOPT_EMULATE_VFS)
#define RT_MALLOC()     (progopts & PROGOPT_RT_MALLOC)
#define EXECVE_BOOTFS() (progopts & PROGOPT_EXECVE_BOOTFS)
#define EXECVE_SHOW_ERRMSG() (progopts & PROGOPT_EXECVE_SHOW_ERRMSG)
#define SHARE_BINARIES()        (progopts & PROGOPT_SHARE_BINARIES)

extern u_int32_t        execve_nbstkpgs;        

#endif

---