1/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2/*
3 * The contents of this file are subject to the Mozilla Public
4 * License Version 1.1 (the "License"); you may not use this file
5 * except in compliance with the License. You may obtain a copy of
6 * the License at http://www.mozilla.org/MPL/
7 *
8 * Software distributed under the License is distributed on an "AS
9 * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
10 * implied. See the License for the specific language governing
11 * rights and limitations under the License.
12 *
13 * The Original Code is the Netscape Portable Runtime (NSPR).
14 *
15 * The Initial Developer of the Original Code is Netscape
16 * Communications Corporation.  Portions created by Netscape are
17 * Copyright (C) 1998-2000 Netscape Communications Corporation.  All
18 * Rights Reserved.
19 *
20 * Contributor(s):
21 *
22 * Alternatively, the contents of this file may be used under the
23 * terms of the GNU General Public License Version 2 or later (the
24 * "GPL"), in which case the provisions of the GPL are applicable
25 * instead of those above.  If you wish to allow use of your
26 * version of this file only under the terms of the GPL and not to
27 * allow others to use your version of this file under the MPL,
28 * indicate your decision by deleting the provisions above and
29 * replace them with the notice and other provisions required by
30 * the GPL.  If you do not delete the provisions above, a recipient
31 * may use your version of this file under either the MPL or the
32 * GPL.
33 */
34
35#ifndef nspr_openbsd_defs_h___
36#define nspr_openbsd_defs_h___
37
38#include <sys/syscall.h>
39
40#define PR_LINKER_ARCH	"openbsd"
41#define _PR_SI_SYSNAME  "OPENBSD"
42#if defined(__i386__)
43#define _PR_SI_ARCHITECTURE "x86"
44#elif defined(__alpha__)
45#define _PR_SI_ARCHITECTURE "alpha"
46#elif defined(__amd64__)
47#define _PR_SI_ARCHITECTURE "amd64"
48#elif defined(__m68k__)
49#define _PR_SI_ARCHITECTURE "m68k"
50#elif defined(__powerpc__)
51#define _PR_SI_ARCHITECTURE "powerpc"
52#elif defined(__sparc__)
53#define _PR_SI_ARCHITECTURE "sparc"
54#endif
55
56#define PR_DLL_SUFFIX		".so.1.0"
57
58#define _PR_VMBASE              0x30000000
59#define _PR_STACK_VMBASE	0x50000000
60#define _MD_DEFAULT_STACK_SIZE	65536L
61#define _MD_MMAP_FLAGS          MAP_PRIVATE
62
63#undef  HAVE_STACK_GROWING_UP
64#define HAVE_DLL
65#define USE_DLFCN
66#define _PR_HAVE_SOCKADDR_LEN
67#define _PR_NO_LARGE_FILES
68#define _PR_STAT_HAS_ST_ATIMESPEC
69#define _PR_POLL_AVAILABLE
70#define _PR_USE_POLL
71#define _PR_HAVE_SYSV_SEMAPHORES
72#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
73
74#define _PR_INET6
75#define _PR_HAVE_INET_NTOP
76#define _PR_HAVE_GETHOSTBYNAME2
77#define _PR_HAVE_GETADDRINFO
78#define _PR_INET6_PROBE
79
80#define USE_SETJMP
81
82#ifndef _PR_PTHREADS
83#include <setjmp.h>
84
85#define PR_CONTEXT_TYPE	sigjmp_buf
86
87#define CONTEXT(_th) ((_th)->md.context)
88
89#if defined(__i386__) || defined(__sparc__) || defined(__m68k__)
90#define JB_SP_INDEX 2
91#elif defined(__powerpc__)
92#define JB_SP_INDEX 1
93#elif defined(__alpha__)
94#define JB_SP_INDEX 34
95#elif defined(__amd64__)
96#define JB_SP_INDEX 6
97#else
98#error "Need to define SP index in jmp_buf here"
99#endif
100#define _MD_GET_SP(_th)    (_th)->md.context[JB_SP_INDEX]
101
102#define PR_NUM_GCREGS	_JBLEN
103
104/*
105** Initialize a thread context to run "_main()" when started
106*/
107#define _MD_INIT_CONTEXT(_thread, _sp, _main, status)  \
108{  \
109    *status = PR_TRUE;  \
110    if (sigsetjmp(CONTEXT(_thread), 1)) {  \
111        _main();  \
112    }  \
113    _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \
114}
115
116#define _MD_SWITCH_CONTEXT(_thread)  \
117    if (!sigsetjmp(CONTEXT(_thread), 1)) {  \
118        (_thread)->md.errcode = errno;  \
119        _PR_Schedule();  \
120    }
121
122/*
123** Restore a thread context, saved by _MD_SWITCH_CONTEXT
124*/
125#define _MD_RESTORE_CONTEXT(_thread) \
126{   \
127    errno = (_thread)->md.errcode;  \
128    _MD_SET_CURRENT_THREAD(_thread);  \
129    siglongjmp(CONTEXT(_thread), 1);  \
130}
131
132/* Machine-dependent (MD) data structures */
133
134struct _MDThread {
135    PR_CONTEXT_TYPE context;
136    int id;
137    int errcode;
138};
139
140struct _MDThreadStack {
141    PRInt8 notused;
142};
143
144struct _MDLock {
145    PRInt8 notused;
146};
147
148struct _MDSemaphore {
149    PRInt8 notused;
150};
151
152struct _MDCVar {
153    PRInt8 notused;
154};
155
156struct _MDSegment {
157    PRInt8 notused;
158};
159
160/*
161 * md-specific cpu structure field
162 */
163#define _PR_MD_MAX_OSFD FD_SETSIZE
164
165struct _MDCPU_Unix {
166    PRCList ioQ;
167    PRUint32 ioq_timeout;
168    PRInt32 ioq_max_osfd;
169    PRInt32 ioq_osfd_cnt;
170#ifndef _PR_USE_POLL
171    fd_set fd_read_set, fd_write_set, fd_exception_set;
172    PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD],
173				fd_exception_cnt[_PR_MD_MAX_OSFD];
174#else
175	struct pollfd *ioq_pollfds;
176	int ioq_pollfds_size;
177#endif	/* _PR_USE_POLL */
178};
179
180#define _PR_IOQ(_cpu)			((_cpu)->md.md_unix.ioQ)
181#define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu))
182#define _PR_FD_READ_SET(_cpu)		((_cpu)->md.md_unix.fd_read_set)
183#define _PR_FD_READ_CNT(_cpu)		((_cpu)->md.md_unix.fd_read_cnt)
184#define _PR_FD_WRITE_SET(_cpu)		((_cpu)->md.md_unix.fd_write_set)
185#define _PR_FD_WRITE_CNT(_cpu)		((_cpu)->md.md_unix.fd_write_cnt)
186#define _PR_FD_EXCEPTION_SET(_cpu)	((_cpu)->md.md_unix.fd_exception_set)
187#define _PR_FD_EXCEPTION_CNT(_cpu)	((_cpu)->md.md_unix.fd_exception_cnt)
188#define _PR_IOQ_TIMEOUT(_cpu)		((_cpu)->md.md_unix.ioq_timeout)
189#define _PR_IOQ_MAX_OSFD(_cpu)		((_cpu)->md.md_unix.ioq_max_osfd)
190#define _PR_IOQ_OSFD_CNT(_cpu)		((_cpu)->md.md_unix.ioq_osfd_cnt)
191#define _PR_IOQ_POLLFDS(_cpu)		((_cpu)->md.md_unix.ioq_pollfds)
192#define _PR_IOQ_POLLFDS_SIZE(_cpu)	((_cpu)->md.md_unix.ioq_pollfds_size)
193
194#define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu)	32
195
196struct _MDCPU {
197    struct _MDCPU_Unix md_unix;
198};
199
200#define _MD_INIT_LOCKS()
201#define _MD_NEW_LOCK(lock) PR_SUCCESS
202#define _MD_FREE_LOCK(lock)
203#define _MD_LOCK(lock)
204#define _MD_UNLOCK(lock)
205#define _MD_INIT_IO()
206#define _MD_IOQ_LOCK()
207#define _MD_IOQ_UNLOCK()
208
209#define _MD_INIT_RUNNING_CPU(cpu)       _MD_unix_init_running_cpu(cpu)
210#define _MD_INIT_THREAD                 _MD_InitializeThread
211#define _MD_EXIT_THREAD(thread)
212#define _MD_SUSPEND_THREAD(thread)      _MD_suspend_thread
213#define _MD_RESUME_THREAD(thread)       _MD_resume_thread
214#define _MD_CLEAN_THREAD(_thread)
215
216#endif /* ! _PR_PTHREADS */
217
218#define _MD_EARLY_INIT                  _MD_EarlyInit
219#define _MD_FINAL_INIT			_PR_UnixInit
220#define _MD_GET_INTERVAL                  _PR_UNIX_GetInterval
221#define _MD_INTERVAL_PER_SEC              _PR_UNIX_TicksPerSecond
222
223/*
224 * We wrapped the select() call.  _MD_SELECT refers to the built-in,
225 * unwrapped version.
226 */
227#define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv)
228#include <poll.h>
229#define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout)
230
231#if OpenBSD1_3 == 1L
232typedef unsigned int nfds_t;
233#endif
234
235#endif /* nspr_openbsd_defs_h___ */
236