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138 lines
3.6 KiB
C
138 lines
3.6 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_nec_defs_h___
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#define nspr_nec_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 "nec"
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#define _PR_SI_SYSNAME "NEC"
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#define _PR_SI_ARCHITECTURE "mips"
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#define PR_DLL_SUFFIX ".so"
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#define _PR_STACK_VMBASE 0x50000000
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#define _MD_DEFAULT_STACK_SIZE 65536L
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#define _MD_MMAP_FLAGS MAP_PRIVATE
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#undef HAVE_STACK_GROWING_UP
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#define HAVE_DLL
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#define USE_DLFCN
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#define NEED_TIME_R
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#define NEED_STRFTIME_LOCK
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#include <ucontext.h>
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#include <sys/regset.h>
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#define PR_NUM_GCREGS NGREG
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#define PR_CONTEXT_TYPE ucontext_t
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#define CONTEXT(_thread) (&(_thread)->md.context)
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#define _MD_GET_SP(_t) (_t)->md.context.uc_mcontext.gregs[CXT_SP]
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/*
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** Initialize the thread context preparing it to execute "e(o,a)"
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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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getcontext(CONTEXT(thread)); \
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CONTEXT(thread)->uc_stack.ss_sp = (char*) (thread)->stack->stackBottom; \
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CONTEXT(thread)->uc_stack.ss_size = (thread)->stack->stackSize; \
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_MD_GET_SP(thread) = (greg_t) _sp - 64; \
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makecontext(CONTEXT(thread), _main, 0); \
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}
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#define _MD_SWITCH_CONTEXT(_thread) \
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if (!getcontext(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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ucontext_t *uc = CONTEXT(_thread); \
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uc->uc_mcontext.gregs[CXT_V0] = 1; \
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uc->uc_mcontext.gregs[CXT_A3] = 0; \
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errno = (_thread)->md.errcode; \
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_MD_SET_CURRENT_THREAD(_thread); \
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setcontext(uc); \
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}
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/* Machine-dependent (MD) data structures */
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struct _MDThread {
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PR_CONTEXT_TYPE 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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#define _MD_INIT_LOCKS()
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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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#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_CLEAN_THREAD(_thread)
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#define _MD_SELECT _select
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#define _MD_POLL _poll
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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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#endif /* nspr_nec_defs_h___ */
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