Delete bundled copy of NSS and replace with README.

nspr/pr/include/md/_darwin.h

-/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
-/* This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
-
-#ifndef nspr_darwin_defs_h___
-#define nspr_darwin_defs_h___
-
-#include "prthread.h"
-
-#include <libkern/OSAtomic.h>
-#include <sys/syscall.h>
-
-#ifdef __APPLE__
-#include <AvailabilityMacros.h>
-#include <TargetConditionals.h>
-#endif
-
-#define PR_LINKER_ARCH  "darwin"
-#define _PR_SI_SYSNAME  "DARWIN"
-#ifdef __i386__
-#define _PR_SI_ARCHITECTURE "x86"
-#elif defined(__x86_64__)
-#define _PR_SI_ARCHITECTURE "x86-64"
-#elif defined(__ppc__)
-#define _PR_SI_ARCHITECTURE "ppc"
-#elif defined(__arm__)
-#define _PR_SI_ARCHITECTURE "arm"
-#elif defined(__aarch64__)
-#define _PR_SI_ARCHITECTURE "aarch64"
-#else
-#error "Unknown CPU architecture"
-#endif
-#define PR_DLL_SUFFIX           ".dylib"
-
-#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_DLL
-#if defined(__x86_64__) || TARGET_OS_IPHONE
-#define USE_DLFCN
-#else
-#define USE_MACH_DYLD
-#endif
-#define _PR_HAVE_SOCKADDR_LEN  
-#define _PR_STAT_HAS_ST_ATIMESPEC
-#define _PR_HAVE_LARGE_OFF_T
-#define _PR_HAVE_SYSV_SEMAPHORES
-#define PR_HAVE_SYSV_NAMED_SHARED_MEMORY
-
-#define _PR_INET6
-/*
- * I'd prefer to use getipnodebyname and getipnodebyaddr but the
- * getipnodebyname(3) man page on Mac OS X 10.2 says they are not
- * thread-safe.  AI_V4MAPPED|AI_ADDRCONFIG doesn't work either.
- */
-#define _PR_HAVE_GETHOSTBYNAME2
-#define _PR_HAVE_GETADDRINFO
-/*
- * On Mac OS X 10.2, gethostbyaddr fails with h_errno=NO_RECOVERY
- * if you pass an IPv4-mapped IPv6 address to it.
- */
-#define _PR_GHBA_DISALLOW_V4MAPPED
-#ifdef __APPLE__
-#if !defined(MAC_OS_X_VERSION_10_3) || \
-    MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_3
-/*
- * socket(AF_INET6) fails with EPROTONOSUPPORT on Mac OS X 10.1.
- * IPv6 under OS X 10.2 and below is not complete (see bug 222031).
- */
-#define _PR_INET6_PROBE
-#endif /* DT < 10.3 */
-#if defined(MAC_OS_X_VERSION_10_2) && \
-    MAC_OS_X_VERSION_MIN_REQUIRED >= MAC_OS_X_VERSION_10_2
-/* Mac OS X 10.2 has inet_ntop and inet_pton. */
-#define _PR_HAVE_INET_NTOP
-#endif /* DT >= 10.2 */
-#endif /* __APPLE__ */
-#define _PR_IPV6_V6ONLY_PROBE
-/* The IPV6_V6ONLY socket option is not defined on Mac OS X 10.1. */
-#ifndef IPV6_V6ONLY
-#define IPV6_V6ONLY 27
-#endif
-
-#ifdef __ppc__
-#define _PR_HAVE_ATOMIC_OPS
-#define _MD_INIT_ATOMIC()
-extern PRInt32 _PR_DarwinPPC_AtomicIncrement(PRInt32 *val);
-#define _MD_ATOMIC_INCREMENT(val)   _PR_DarwinPPC_AtomicIncrement(val)
-extern PRInt32 _PR_DarwinPPC_AtomicDecrement(PRInt32 *val);
-#define _MD_ATOMIC_DECREMENT(val)   _PR_DarwinPPC_AtomicDecrement(val)
-extern PRInt32 _PR_DarwinPPC_AtomicSet(PRInt32 *val, PRInt32 newval);
-#define _MD_ATOMIC_SET(val, newval) _PR_DarwinPPC_AtomicSet(val, newval)
-extern PRInt32 _PR_DarwinPPC_AtomicAdd(PRInt32 *ptr, PRInt32 val);
-#define _MD_ATOMIC_ADD(ptr, val)    _PR_DarwinPPC_AtomicAdd(ptr, val)
-#endif /* __ppc__ */
-
-#ifdef __i386__
-#define _PR_HAVE_ATOMIC_OPS
-#define _MD_INIT_ATOMIC()
-extern PRInt32 _PR_Darwin_x86_AtomicIncrement(PRInt32 *val);
-#define _MD_ATOMIC_INCREMENT(val)   _PR_Darwin_x86_AtomicIncrement(val)
-extern PRInt32 _PR_Darwin_x86_AtomicDecrement(PRInt32 *val);
-#define _MD_ATOMIC_DECREMENT(val)   _PR_Darwin_x86_AtomicDecrement(val)
-extern PRInt32 _PR_Darwin_x86_AtomicSet(PRInt32 *val, PRInt32 newval);
-#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_AtomicSet(val, newval)
-extern PRInt32 _PR_Darwin_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val);
-#define _MD_ATOMIC_ADD(ptr, val)    _PR_Darwin_x86_AtomicAdd(ptr, val)
-#endif /* __i386__ */
-
-#ifdef __x86_64__
-#define _PR_HAVE_ATOMIC_OPS
-#define _MD_INIT_ATOMIC()
-extern PRInt32 _PR_Darwin_x86_64_AtomicIncrement(PRInt32 *val);
-#define _MD_ATOMIC_INCREMENT(val)   _PR_Darwin_x86_64_AtomicIncrement(val)
-extern PRInt32 _PR_Darwin_x86_64_AtomicDecrement(PRInt32 *val);
-#define _MD_ATOMIC_DECREMENT(val)   _PR_Darwin_x86_64_AtomicDecrement(val)
-extern PRInt32 _PR_Darwin_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval);
-#define _MD_ATOMIC_SET(val, newval) _PR_Darwin_x86_64_AtomicSet(val, newval)
-extern PRInt32 _PR_Darwin_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val);
-#define _MD_ATOMIC_ADD(ptr, val)    _PR_Darwin_x86_64_AtomicAdd(ptr, val)
-#endif /* __x86_64__ */
-
-#if defined(__arm__) || defined(__aarch64__)
-#define _PR_HAVE_ATOMIC_OPS
-#define _MD_INIT_ATOMIC()
-#define _MD_ATOMIC_INCREMENT(val)   OSAtomicIncrement32(val)
-#define _MD_ATOMIC_DECREMENT(val)   OSAtomicDecrement32(val)
-static inline PRInt32 _MD_ATOMIC_SET(PRInt32 *val, PRInt32 newval)
-{
-    PRInt32 oldval;
-    do {
-        oldval = *val;
-    } while (!OSAtomicCompareAndSwap32(oldval, newval, val));
-    return oldval;
-}
-#define _MD_ATOMIC_ADD(ptr, val)    OSAtomicAdd32(val, ptr)
-#endif /* __arm__ || __aarch64__ */
-
-#define USE_SETJMP
-
-#if !defined(_PR_PTHREADS)
-
-#include <setjmp.h>
-
-#define PR_CONTEXT_TYPE jmp_buf
-
-#define CONTEXT(_th)       ((_th)->md.context)
-#define _MD_GET_SP(_th)    (((struct sigcontext *) (_th)->md.context)->sc_onstack)
-#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) = (unsigned char*) ((_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 */
-
-#define _MD_EARLY_INIT          _MD_EarlyInit
-#define _MD_FINAL_INIT                  _PR_UnixInit
-#define _MD_INTERVAL_INIT       _PR_Mach_IntervalInit
-#define _MD_GET_INTERVAL        _PR_Mach_GetInterval
-#define _MD_INTERVAL_PER_SEC    _PR_Mach_TicksPerSecond
-
-extern void             _MD_EarlyInit(void);
-extern void             _PR_Mach_IntervalInit(void);
-extern PRIntervalTime   _PR_Mach_GetInterval(void);
-extern PRIntervalTime   _PR_Mach_TicksPerSecond(void);
-
-/*
- * 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>
-
-#endif /* nspr_darwin_defs_h___ */