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_sony.h

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
 *
 * The contents of this file are subject to the Mozilla Public License Version
 * 1.1 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 * http://www.mozilla.org/MPL/
 *
 * Software distributed under the License is distributed on an "AS IS" basis,
 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
 * for the specific language governing rights and limitations under the
 * License.
 *
 * The Original Code is the Netscape Portable Runtime (NSPR).
 *
 * The Initial Developer of the Original Code is
 * Netscape Communications Corporation.
 * Portions created by the Initial Developer are Copyright (C) 1998-2000
 * the Initial Developer. All Rights Reserved.
 *
 * Contributor(s):
 *
 * Alternatively, the contents of this file may be used under the terms of
 * either the GNU General Public License Version 2 or later (the "GPL"), or
 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
 * in which case the provisions of the GPL or the LGPL are applicable instead
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 * ***** END LICENSE BLOCK ***** */

#ifndef nspr_sony_defs_h___
#define nspr_sony_defs_h___
 
#define PR_LINKER_ARCH        "sony"
#define _PR_SI_SYSNAME        "SONY"
#define _PR_SI_ARCHITECTURE   "mips"
#define PR_DLL_SUFFIX         ".so"
 
#define _PR_VMBASE            0x30000000
#define _PR_STACK_VMBASE      0x50000000
#define _MD_DEFAULT_STACK_SIZE      65536L
#define _MD_MMAP_FLAGS          MAP_PRIVATE

#define _MD_GET_INTERVAL      _PR_UNIX_GetInterval
#define _MD_INTERVAL_PER_SEC  _PR_UNIX_TicksPerSecond

#if defined(_PR_LOCAL_THREADS_ONLY)
#include <ucontext.h>
#include <sys/regset.h>
 
#define PR_NUM_GCREGS   NGREG
#define PR_CONTEXT_TYPE ucontext_t
 
#define CONTEXT(_thread)      (&(_thread)->md.context)
 
#define _MD_GET_SP(_t)        (_t)->md.context.uc_mcontext.gregs[CXT_SP]
 
/*
** Initialize the thread context preparing it to execute _main()
*/
#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)               \
{                                                                   \
    *status = PR_TRUE;  \
    getcontext(CONTEXT(_thread));                                    \
    CONTEXT(_thread)->uc_stack.ss_sp = (char*) (_thread)->stack->stackBottom; \
    CONTEXT(_thread)->uc_stack.ss_size = (_thread)->stack->stackSize; \
    _MD_GET_SP(_thread) = (greg_t) (_sp) - 64;             \
    makecontext(CONTEXT(_thread), _main, 0);              \
}
 
#define _MD_SWITCH_CONTEXT(_thread)      \
    if (!getcontext(CONTEXT(_thread))) { \
        (_thread)->md.errcode = errno;      \
        _PR_Schedule();                  \
    }
 
/*
** Restore a thread context, saved by _MD_SWITCH_CONTEXT
*/
#define _MD_RESTORE_CONTEXT(_thread)   \
{                                      \
    ucontext_t *uc = CONTEXT(_thread); \
    uc->uc_mcontext.gregs[CXT_V0] = 1; \
    uc->uc_mcontext.gregs[CXT_A3] = 0; \
    _MD_SET_CURRENT_THREAD(_thread);      \
    errno = (_thread)->md.errcode;        \
    setcontext(uc);                    \
}

/* Machine-dependent (MD) data structures */

struct _MDThread {
    PR_CONTEXT_TYPE context;
    int id;
    int errcode;
};

struct _MDThreadStack {
    PRInt8 notused;
};

struct _MDLock {
    PRInt8 notused;
};

struct _MDSemaphore {
    PRInt8 notused;
};

struct _MDCVar {
    PRInt8 notused;
};

struct _MDSegment {
    PRInt8 notused;
};

/*
 * md-specific cpu structure field
 */
#define _PR_MD_MAX_OSFD FD_SETSIZE

struct _MDCPU_Unix {
    PRCList ioQ;
    PRUint32 ioq_timeout;
    PRInt32 ioq_max_osfd;
    PRInt32 ioq_osfd_cnt;
#ifndef _PR_USE_POLL
    fd_set fd_read_set, fd_write_set, fd_exception_set;
    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
                        fd_exception_cnt[_PR_MD_MAX_OSFD];
#else
      struct pollfd *ioq_pollfds;
      int ioq_pollfds_size;
#endif      /* _PR_USE_POLL */
};

#define _PR_IOQ(_cpu)               ((_cpu)->md.md_unix.ioQ)
#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
#define _PR_FD_READ_SET(_cpu)       ((_cpu)->md.md_unix.fd_read_set)
#define _PR_FD_READ_CNT(_cpu)       ((_cpu)->md.md_unix.fd_read_cnt)
#define _PR_FD_WRITE_SET(_cpu)            ((_cpu)->md.md_unix.fd_write_set)
#define _PR_FD_WRITE_CNT(_cpu)            ((_cpu)->md.md_unix.fd_write_cnt)
#define _PR_FD_EXCEPTION_SET(_cpu)  ((_cpu)->md.md_unix.fd_exception_set)
#define _PR_FD_EXCEPTION_CNT(_cpu)  ((_cpu)->md.md_unix.fd_exception_cnt)
#define _PR_IOQ_TIMEOUT(_cpu)       ((_cpu)->md.md_unix.ioq_timeout)
#define _PR_IOQ_MAX_OSFD(_cpu)            ((_cpu)->md.md_unix.ioq_max_osfd)
#define _PR_IOQ_OSFD_CNT(_cpu)            ((_cpu)->md.md_unix.ioq_osfd_cnt)
#define _PR_IOQ_POLLFDS(_cpu)       ((_cpu)->md.md_unix.ioq_pollfds)
#define _PR_IOQ_POLLFDS_SIZE(_cpu)  ((_cpu)->md.md_unix.ioq_pollfds_size)

#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)    32

struct _MDCPU {
    struct _MDCPU_Unix md_unix;
};

#define _MD_INIT_LOCKS()
#define _MD_NEW_LOCK(lock) PR_SUCCESS
#define _MD_FREE_LOCK(lock)
#define _MD_LOCK(lock)
#define _MD_UNLOCK(lock)
#define _MD_INIT_IO()
#define _MD_IOQ_LOCK()
#define _MD_IOQ_UNLOCK()

#define _MD_EARLY_INIT              _MD_EarlyInit
#define _MD_FINAL_INIT              _PR_UnixInit
#define _MD_INIT_RUNNING_CPU(cpu)   _MD_unix_init_running_cpu(cpu)
#define _MD_INIT_THREAD             _MD_InitializeThread
#define _MD_EXIT_THREAD(thread)
#define     _MD_SUSPEND_THREAD(thread)
#define     _MD_RESUME_THREAD(thread)
#define _MD_CLEAN_THREAD(_thread)

/* The following defines unwrapped versions of select() and poll(). */
extern int _select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
#define _MD_SELECT              _select

#include <sys/poll.h>
extern int _poll(struct pollfd *fds, unsigned long nfds, int timeout);
#define _MD_POLL _poll
 
#endif /* _PR_LOCAL_THREADS_ONLY */
 
#undef      HAVE_STACK_GROWING_UP
#define     HAVE_DLL
#define     USE_DLFCN
#define     NEED_TIME_R
#define NEED_STRFTIME_LOCK
 
/*
** Missing function prototypes
*/
extern int gethostname(char *name, int namelen);
 
#endif /* nspr_sony_defs_h___ */

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