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174 lines
4.4 KiB
C
174 lines
4.4 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/*
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* The contents of this file are subject to the Netscape Public License
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* Version 1.0 (the "NPL"); you may not use this file except in
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* compliance with the NPL. You may obtain a copy of the NPL at
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* http://www.mozilla.org/NPL/
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*
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* Software distributed under the NPL is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
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* for the specific language governing rights and limitations under the
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* NPL.
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*
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* The Initial Developer of this code under the NPL is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998 Netscape Communications Corporation. All Rights
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* Reserved.
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*/
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#ifndef nspr_osf1_defs_h___
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#define nspr_osf1_defs_h___
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/*
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* Internal configuration macros
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*/
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#define PR_LINKER_ARCH "osf"
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#define _PR_SI_SYSNAME "OSF"
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#define _PR_SI_ARCHITECTURE "alpha"
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#define PR_DLL_SUFFIX ".so"
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#define _PR_VMBASE 0x30000000
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#define _PR_STACK_VMBASE 0x50000000
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#define _MD_DEFAULT_STACK_SIZE 131072L
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/*
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* OSF1 needs the MAP_FIXED flag to ensure that mmap returns a pointer
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* with the upper 32 bits zero. This is because Java sticks a pointer
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* into an int.
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*/
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#define _MD_MMAP_FLAGS MAP_PRIVATE|MAP_FIXED
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#undef HAVE_STACK_GROWING_UP
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#undef HAVE_WEAK_IO_SYMBOLS
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#undef HAVE_WEAK_MALLOC_SYMBOLS
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#define HAVE_DLL
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#define HAVE_BSD_FLOCK
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#define NEED_TIME_R
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#define USE_DLFCN
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#define USE_SETJMP
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#include <setjmp.h>
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/*
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* A jmp_buf is actually a struct sigcontext. The sc_sp field of
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* struct sigcontext is the stack pointer.
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*/
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#define _MD_GET_SP(_t) (((struct sigcontext *) (_t)->md.context)->sc_sp)
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#define PR_NUM_GCREGS _JBLEN
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#define CONTEXT(_th) ((_th)->md.context)
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/*
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** Initialize a thread context to run "_main()" when started
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*/
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#define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \
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{ \
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*status = PR_TRUE; \
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if (setjmp(CONTEXT(_thread))) { \
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(*_main)(); \
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} \
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_MD_GET_SP(_thread) = (long) ((_sp) - 64); \
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_MD_GET_SP(_thread) &= ~15; \
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}
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#define _MD_SWITCH_CONTEXT(_thread) \
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if (!setjmp(CONTEXT(_thread))) { \
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(_thread)->md.errcode = errno; \
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_PR_Schedule(); \
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}
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/*
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** Restore a thread context, saved by _MD_SWITCH_CONTEXT
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*/
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#define _MD_RESTORE_CONTEXT(_thread) \
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{ \
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errno = (_thread)->md.errcode; \
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_MD_SET_CURRENT_THREAD(_thread); \
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longjmp(CONTEXT(_thread), 1); \
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}
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/* Machine-dependent (MD) data structures */
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struct _MDThread {
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jmp_buf context;
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int id;
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int errcode;
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};
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struct _MDThreadStack {
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PRInt8 notused;
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};
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struct _MDLock {
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PRInt8 notused;
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};
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struct _MDSemaphore {
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PRInt8 notused;
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};
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struct _MDCVar {
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PRInt8 notused;
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};
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struct _MDSegment {
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PRInt8 notused;
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};
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struct _MDCPU {
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struct _MDCPU_Unix md_unix;
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};
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#ifndef _PR_PTHREADS
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#define _MD_INIT_LOCKS()
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#endif
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#define _MD_NEW_LOCK(lock) PR_SUCCESS
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#define _MD_FREE_LOCK(lock)
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#define _MD_LOCK(lock)
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#define _MD_UNLOCK(lock)
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#define _MD_INIT_IO()
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#define _MD_IOQ_LOCK()
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#define _MD_IOQ_UNLOCK()
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/*
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* The following are copied from _sunos.h, _aix.h. This means
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* some of them should probably be moved into _unixos.h. But
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* _irix.h seems to be quite different in regard to these macros.
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*/
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#define _MD_GET_INTERVAL _PR_UNIX_GetInterval
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#define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
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#define _MD_EARLY_INIT _MD_EarlyInit
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#define _MD_FINAL_INIT _PR_UnixInit
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#define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu)
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#define _MD_INIT_THREAD _MD_InitializeThread
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#define _MD_EXIT_THREAD(thread)
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#define _MD_SUSPEND_THREAD(thread)
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#define _MD_RESUME_THREAD(thread)
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#define _MD_CLEAN_THREAD(_thread)
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/* The following defines unwrapped versions of select() and poll(). */
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extern int __select (int, fd_set *, fd_set *, fd_set *, struct timeval *);
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#define _MD_SELECT __select
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#include <sys/poll.h>
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#define _MD_POLL __poll
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extern int __poll(struct pollfd filedes[], unsigned int nfds, int timeout);
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/*
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* Atomic operations
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*/
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/* builtins.h is not available for OSF1 V3.2. */
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#ifndef OSF1V3
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#include <machine/builtins.h>
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#define _PR_HAVE_ATOMIC_OPS
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#define _MD_INIT_ATOMIC()
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#define _MD_ATOMIC_INCREMENT(val) (__ATOMIC_INCREMENT_LONG(val) + 1)
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#define _MD_ATOMIC_DECREMENT(val) (__ATOMIC_DECREMENT_LONG(val) - 1)
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#define _MD_ATOMIC_SET(val, newval) __ATOMIC_EXCH_LONG(val, newval)
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#endif /* OSF1V3 */
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#endif /* nspr_osf1_defs_h___ */
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