_nextstep.h
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- /* -*- 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
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
- #ifndef nspr_nextstep_defs_h___
- #define nspr_nextstep_defs_h___
- #include "prthread.h"
- #include <bsd/libc.h>
- #include <bsd/syscall.h>
- /* syscall() is not declared in NEXTSTEP's syscall.h ...
- */
- extern int syscall(int number, ...);
- /*
- * Internal configuration macros
- */
- #define PR_LINKER_ARCH "nextstep"
- #define _PR_SI_SYSNAME "NEXTSTEP"
- #if defined(__sparc__)
- #define _PR_SI_ARCHITECTURE "sparc"
- #elif defined(__m68k__)
- #define _PR_SI_ARCHITECTURE "m68k"
- #elif defined(__i386__)
- #define _PR_SI_ARCHITECTURE "x86"
- #else
- error Unknown NEXTSTEP architecture
- #endif
- #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
- #undef HAVE_STACK_GROWING_UP
- #define HAVE_WEAK_MALLOC_SYMBOLS
- #define HAVE_DLL
- #define USE_MACH_DYLD
- #define _PR_STAT_HAS_ONLY_ST_ATIME
- #define _PR_NO_LARGE_FILES
- #define USE_SETJMP
- #ifndef _PR_PTHREADS
- #include <setjmp.h>
- #define PR_CONTEXT_TYPE jmp_buf
- #define CONTEXT(_th) ((_th)->md.context)
- /* balazs.pataki@sztaki.hu:
- ** __sparc__ is checked
- ** __m68k__ is checked
- ** __i386__ is a guess (one of the two defines should work)
- */
- #if defined(__sparc__)
- #define _MD_GET_SP(_th) (_th)->md.context[2]
- #elif defined(__m68k__)
- #define _MD_GET_SP(_th) (_th)->md.context[2]
- #elif defined(__i386__)
- /* One of this two must be OK ... try using sc_onstack
- */
- #define _MD_GET_SP(_th) (((struct sigcontext *) (_th)->md.context)->sc_onstack)
- //#define _MD_GET_SP(_th) (_th)->md.context[0].sc_esp
- #else
- error Unknown NEXTSTEP architecture
- #endif
- #define PR_NUM_GCREGS _JBLEN
- /*
- ** Initialize a thread context to run "_main()" when started
- */
- #define _MD_INIT_CONTEXT(_thread, _sp, _main, status)
- {
- *status = PR_TRUE;
- if (setjmp(CONTEXT(_thread))) {
- _main();
- }
- _MD_GET_SP(_thread) = (int) ((_sp) - 64);
- }
- #define _MD_SWITCH_CONTEXT(_thread)
- if (!setjmp(CONTEXT(_thread))) {
- (_thread)->md.errcode = errno;
- _PR_Schedule();
- }
- /*
- ** Restore a thread context, saved by _MD_SWITCH_CONTEXT
- */
- #define _MD_RESTORE_CONTEXT(_thread)
- {
- errno = (_thread)->md.errcode;
- _MD_SET_CURRENT_THREAD(_thread);
- longjmp(CONTEXT(_thread), 1);
- }
- /* 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()
- extern PRStatus _MD_InitializeThread(PRThread *thread);
- #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) _MD_suspend_thread
- #define _MD_RESUME_THREAD(thread) _MD_resume_thread
- #define _MD_CLEAN_THREAD(_thread)
- extern PRStatus _MD_CREATE_THREAD(
- PRThread *thread,
- void (*start) (void *),
- PRThreadPriority priority,
- PRThreadScope scope,
- PRThreadState state,
- PRUint32 stackSize);
- extern void _MD_SET_PRIORITY(struct _MDThread *thread, PRUintn newPri);
- extern PRStatus _MD_WAIT(PRThread *, PRIntervalTime timeout);
- extern PRStatus _MD_WAKEUP_WAITER(PRThread *);
- extern void _MD_YIELD(void);
- #endif /* ! _PR_PTHREADS */
- extern void _MD_EarlyInit(void);
- extern PRIntervalTime _PR_UNIX_GetInterval(void);
- extern PRIntervalTime _PR_UNIX_TicksPerSecond(void);
- #define _MD_EARLY_INIT _MD_EarlyInit
- #define _MD_FINAL_INIT _PR_UnixInit
- #define _MD_GET_INTERVAL _PR_UNIX_GetInterval
- #define _MD_INTERVAL_PER_SEC _PR_UNIX_TicksPerSecond
- /*
- * We wrapped the select() call. _MD_SELECT refers to the built-in,
- * unwrapped version.
- */
- #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
- /* For writev() */
- #include <sys/uio.h>
- /* signal.h */
- /* balazs.pataki@sztaki.hu: this is stolen from sunos4.h. The things is that
- ** NEXTSTEP doesn't support these flags for `struct sigaction's sa_flags, so
- ** I have to fake them ...
- */
- #define SA_RESTART 0
- /* mmap */
- /* balazs.pataki@sztaki.hu: NEXTSTEP doesn't have mmap, at least not
- ** publically. We have sys/mman.h, but it doesn't declare mmap(), and
- ** PROT_NONE is also missing. syscall.h has entries for mmap, munmap, and
- ** mprotect so I wrap these in nextstep.c as mmap(), munmap() and mprotect()
- ** and pray for it to work.
- **
- */
- caddr_t mmap(caddr_t addr, size_t len, int prot, int flags,
- int fildes, off_t off);
- int munmap(caddr_t addr, size_t len);
- int mprotect(caddr_t addr, size_t len, int prot);
- /* my_mmap() is implemented in nextstep.c and is based on map_fd() of mach.
- */
- caddr_t my_mmap(caddr_t addr, size_t len, int prot, int flags,
- int fildes, off_t off);
- int my_munmap(caddr_t addr, size_t len);
- /* string.h
- */
- /* balazs.pataki@sztaki.hu: this is missing so implemenetd in nextstep.c ...
- */
- char *strdup(const char *s1);
- /* unistd.h
- */
- /* balazs.pataki@sztaki.hu: these functions are hidden, though correctly
- ** implemented in NEXTSTEP. Here I give the declaration for them to be used
- ** by prmalloc.c, and I have a wrapped syscall() version of them in nextstep.c
- */
- int brk(void *endds);
- void *sbrk(int incr);
- #endif /* nspr_nextstep_defs_h___ */