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Diffstat (limited to 'nsprpub/pr/include/md/_darwin.h')
| -rw-r--r-- | nsprpub/pr/include/md/_darwin.h | 303 |
1 files changed, 303 insertions, 0 deletions
diff --git a/nsprpub/pr/include/md/_darwin.h b/nsprpub/pr/include/md/_darwin.h new file mode 100644 index 0000000000..d321023230 --- /dev/null +++ b/nsprpub/pr/include/md/_darwin.h @@ -0,0 +1,303 @@ +/* -*- 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___ */ |