| /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| /* |
| * 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 Netscape are |
| * Copyright (C) 1998-2000 Netscape Communications Corporation. All |
| * Rights Reserved. |
| * |
| * Contributor(s): |
| * |
| * Alternatively, the contents of this file may be used under the |
| * terms of the GNU General Public License Version 2 or later (the |
| * "GPL"), in which case the provisions of the GPL are applicable |
| * instead of those above. If you wish to allow use of your |
| * version of this file only under the terms of the GPL and not to |
| * allow others to use your version of this file under the MPL, |
| * indicate your decision by deleting the provisions above and |
| * replace them with the notice and other provisions required by |
| * the GPL. If you do not delete the provisions above, a recipient |
| * may use your version of this file under either the MPL or the |
| * GPL. |
| */ |
| |
| #ifndef nspr_linux_defs_h___ |
| #define nspr_linux_defs_h___ |
| |
| #include "prthread.h" |
| |
| /* |
| * Internal configuration macros |
| */ |
| |
| #define PR_LINKER_ARCH "linux" |
| #define _PR_SI_SYSNAME "LINUX" |
| #ifdef __powerpc__ |
| #define _PR_SI_ARCHITECTURE "ppc" |
| #elif defined(__alpha) |
| #define _PR_SI_ARCHITECTURE "alpha" |
| #elif defined(__ia64__) |
| #define _PR_SI_ARCHITECTURE "ia64" |
| #elif defined(__x86_64__) |
| #define _PR_SI_ARCHITECTURE "x86-64" |
| #elif defined(__mc68000__) |
| #define _PR_SI_ARCHITECTURE "m68k" |
| #elif defined(__sparc__) |
| #define _PR_SI_ARCHITECTURE "sparc" |
| #elif defined(__i386__) |
| #define _PR_SI_ARCHITECTURE "x86" |
| #elif defined(__mips__) |
| #define _PR_SI_ARCHITECTURE "mips" |
| #elif defined(__arm__) |
| #define _PR_SI_ARCHITECTURE "arm" |
| #elif defined(__hppa__) |
| #define _PR_SI_ARCHITECTURE "hppa" |
| #elif defined(__s390__) |
| #define _PR_SI_ARCHITECTURE "s390" |
| #elif defined(__s390x__) |
| #define _PR_SI_ARCHITECTURE "s390x" |
| #else |
| #error "Unknown CPU 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 |
| |
| /* |
| * Elf linux supports dl* functions |
| */ |
| #define HAVE_DLL |
| #define USE_DLFCN |
| |
| #if defined(__i386__) |
| #define _PR_HAVE_ATOMIC_OPS |
| #define _MD_INIT_ATOMIC() |
| extern PRInt32 _PR_x86_AtomicIncrement(PRInt32 *val); |
| #define _MD_ATOMIC_INCREMENT _PR_x86_AtomicIncrement |
| extern PRInt32 _PR_x86_AtomicDecrement(PRInt32 *val); |
| #define _MD_ATOMIC_DECREMENT _PR_x86_AtomicDecrement |
| extern PRInt32 _PR_x86_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| #define _MD_ATOMIC_ADD _PR_x86_AtomicAdd |
| extern PRInt32 _PR_x86_AtomicSet(PRInt32 *val, PRInt32 newval); |
| #define _MD_ATOMIC_SET _PR_x86_AtomicSet |
| #endif |
| |
| #if defined(__ia64__) |
| #define _PR_HAVE_ATOMIC_OPS |
| #define _MD_INIT_ATOMIC() |
| extern PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val); |
| #define _MD_ATOMIC_INCREMENT _PR_ia64_AtomicIncrement |
| extern PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val); |
| #define _MD_ATOMIC_DECREMENT _PR_ia64_AtomicDecrement |
| extern PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| #define _MD_ATOMIC_ADD _PR_ia64_AtomicAdd |
| extern PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval); |
| #define _MD_ATOMIC_SET _PR_ia64_AtomicSet |
| #endif |
| |
| #if defined(__x86_64__) |
| #define _PR_HAVE_ATOMIC_OPS |
| #define _MD_INIT_ATOMIC() |
| extern PRInt32 _PR_x86_64_AtomicIncrement(PRInt32 *val); |
| #define _MD_ATOMIC_INCREMENT _PR_x86_64_AtomicIncrement |
| extern PRInt32 _PR_x86_64_AtomicDecrement(PRInt32 *val); |
| #define _MD_ATOMIC_DECREMENT _PR_x86_64_AtomicDecrement |
| extern PRInt32 _PR_x86_64_AtomicAdd(PRInt32 *ptr, PRInt32 val); |
| #define _MD_ATOMIC_ADD _PR_x86_64_AtomicAdd |
| extern PRInt32 _PR_x86_64_AtomicSet(PRInt32 *val, PRInt32 newval); |
| #define _MD_ATOMIC_SET _PR_x86_64_AtomicSet |
| #endif |
| |
| #define USE_SETJMP |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _PR_POLL_AVAILABLE |
| #endif |
| #undef _PR_USE_POLL |
| #define _PR_STAT_HAS_ONLY_ST_ATIME |
| #if defined(__alpha) || defined(__ia64__) |
| #define _PR_HAVE_LARGE_OFF_T |
| #elif (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) |
| #define _PR_HAVE_OFF64_T |
| #else |
| #define _PR_NO_LARGE_FILES |
| #endif |
| #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) |
| #define _PR_INET6 |
| #define _PR_HAVE_INET_NTOP |
| #define _PR_HAVE_GETHOSTBYNAME2 |
| #define _PR_HAVE_GETADDRINFO |
| #define _PR_INET6_PROBE |
| #endif |
| #define _PR_HAVE_SYSV_SEMAPHORES |
| #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY |
| #if (__GLIBC__ >= 2) && defined(_PR_PTHREADS) |
| #define _PR_HAVE_GETHOST_R |
| #define _PR_HAVE_GETHOST_R_INT |
| #endif |
| |
| #ifdef _PR_PTHREADS |
| |
| extern void _MD_CleanupBeforeExit(void); |
| #define _MD_CLEANUP_BEFORE_EXIT _MD_CleanupBeforeExit |
| |
| #else /* ! _PR_PTHREADS */ |
| |
| #include <setjmp.h> |
| |
| #define PR_CONTEXT_TYPE sigjmp_buf |
| |
| #define CONTEXT(_th) ((_th)->md.context) |
| |
| #ifdef __powerpc__ |
| /* |
| * PowerPC based MkLinux |
| * |
| * On the PowerPC, the new style jmp_buf isn't used until glibc |
| * 2.1. |
| */ |
| #if (__GLIBC__ > 2) || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 1) |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_GPR1] |
| #else |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__misc[0] |
| #endif /* glibc 2.1 or later */ |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| /* aix = 64, macos = 70 */ |
| #define PR_NUM_GCREGS 64 |
| |
| #elif defined(__alpha) |
| /* Alpha based Linux */ |
| |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP] |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE long int |
| #else |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE __ptr_t |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| |
| /* XXX not sure if this is correct, or maybe it should be 17? */ |
| #define PR_NUM_GCREGS 9 |
| |
| #elif defined(__ia64__) |
| |
| #define _MD_GET_SP(_t) ((long *)((_t)->md.context[0].__jmpbuf)[0]) |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE long int |
| |
| #define PR_NUM_GCREGS _JBLEN |
| |
| #elif defined(__mc68000__) |
| /* m68k based Linux */ |
| |
| /* |
| * On the m68k, glibc still uses the old style sigjmp_buf, even |
| * in glibc 2.0.7. |
| */ |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE int |
| #else |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE __ptr_t |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| |
| /* XXX not sure if this is correct, or maybe it should be 17? */ |
| #define PR_NUM_GCREGS 9 |
| |
| #elif defined(__sparc__) |
| /* Sparc */ |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| /* |
| * You need glibc2-2.0.7-25 or later. The libraries that came with |
| * Red Hat 5.1 are not new enough, but they are in 5.2. |
| */ |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP] |
| #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_FP] = val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_FP]) |
| #define _MD_SP_TYPE int |
| #else |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__fp |
| #define _MD_SET_FP(_t, val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) ((void *) 0) |
| #define _MD_SP_TYPE __ptr_t |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| |
| #elif defined(__i386__) |
| /* Intel based Linux */ |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[JB_SP] |
| #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[JB_BP] = val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[JB_BP]) |
| #define _MD_SP_TYPE int |
| #else |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp |
| #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__bp = val) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) &((_t)->md.context[0].__jmpbuf[0].__bp) |
| #define _MD_SP_TYPE __ptr_t |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| #define PR_NUM_GCREGS 6 |
| |
| #elif defined(__mips__) |
| /* Linux/MIPS */ |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[0].__sp |
| #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[0].__fp = (val)) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[0].__fp) |
| #define _MD_SP_TYPE __ptr_t |
| #else |
| #error "Linux/MIPS pre-glibc2 not supported yet" |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| |
| #elif defined(__arm__) |
| /* ARM/Linux */ |
| #if defined(__GLIBC__) && __GLIBC__ >= 2 |
| #define _MD_GET_SP(_t) (_t)->md.context[0].__jmpbuf[20] |
| #define _MD_SET_FP(_t, val) ((_t)->md.context[0].__jmpbuf[19] = (val)) |
| #define _MD_GET_SP_PTR(_t) &(_MD_GET_SP(_t)) |
| #define _MD_GET_FP_PTR(_t) (&(_t)->md.context[0].__jmpbuf[19]) |
| #define _MD_SP_TYPE __ptr_t |
| #else |
| #error "ARM/Linux pre-glibc2 not supported yet" |
| #endif /* defined(__GLIBC__) && __GLIBC__ >= 2 */ |
| |
| #else |
| |
| #error "Unknown CPU architecture" |
| |
| #endif /*__powerpc__*/ |
| |
| /* |
| ** Initialize a thread context to run "_main()" when started |
| */ |
| #ifdef __powerpc__ |
| |
| #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ |
| { \ |
| *status = PR_TRUE; \ |
| if (sigsetjmp(CONTEXT(_thread), 1)) { \ |
| _main(); \ |
| } \ |
| _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 128); \ |
| _thread->md.sp = _MD_GET_SP_PTR(_thread); \ |
| _thread->md.fp = _MD_GET_FP_PTR(_thread); \ |
| _MD_SET_FP(_thread, 0); \ |
| } |
| |
| #elif defined(__mips__) |
| |
| #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ |
| { \ |
| *status = PR_TRUE; \ |
| (void) sigsetjmp(CONTEXT(_thread), 1); \ |
| _thread->md.context[0].__jmpbuf[0].__pc = (__ptr_t) _main; \ |
| _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \ |
| _thread->md.sp = _MD_GET_SP_PTR(_thread); \ |
| _thread->md.fp = _MD_GET_FP_PTR(_thread); \ |
| _MD_SET_FP(_thread, 0); \ |
| } |
| |
| #else |
| |
| #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ |
| { \ |
| *status = PR_TRUE; \ |
| if (sigsetjmp(CONTEXT(_thread), 1)) { \ |
| _main(); \ |
| } \ |
| _MD_GET_SP(_thread) = (_MD_SP_TYPE) ((_sp) - 64); \ |
| _thread->md.sp = _MD_GET_SP_PTR(_thread); \ |
| _thread->md.fp = _MD_GET_FP_PTR(_thread); \ |
| _MD_SET_FP(_thread, 0); \ |
| } |
| |
| #endif /*__powerpc__*/ |
| |
| #define _MD_SWITCH_CONTEXT(_thread) \ |
| if (!sigsetjmp(CONTEXT(_thread), 1)) { \ |
| (_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); \ |
| siglongjmp(CONTEXT(_thread), 1); \ |
| } |
| |
| /* Machine-dependent (MD) data structures */ |
| |
| struct _MDThread { |
| PR_CONTEXT_TYPE context; |
| void *sp; |
| void *fp; |
| 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 |
| */ |
| #include <sys/time.h> /* for FD_SETSIZE */ |
| #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 __select |
| |
| #ifdef _PR_POLL_AVAILABLE |
| #include <sys/poll.h> |
| extern int __syscall_poll(struct pollfd *ufds, unsigned long int nfds, |
| int timeout); |
| #define _MD_POLL __syscall_poll |
| #endif |
| |
| /* For writev() */ |
| #include <sys/uio.h> |
| |
| extern void _MD_linux_map_sendfile_error(int err); |
| |
| #endif /* nspr_linux_defs_h___ */ |