_netbsd.h (6180B)
1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ 2 /* This Source Code Form is subject to the terms of the Mozilla Public 3 * License, v. 2.0. If a copy of the MPL was not distributed with this 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ 5 6 #ifndef nspr_netbsd_defs_h___ 7 #define nspr_netbsd_defs_h___ 8 9 #include <sys/syscall.h> 10 #include <sys/param.h> /* for __NetBSD_Version__ */ 11 12 #define PR_LINKER_ARCH "netbsd" 13 #define _PR_SI_SYSNAME "NetBSD" 14 #if defined(__i386__) 15 #define _PR_SI_ARCHITECTURE "x86" 16 #elif defined(__alpha__) 17 #define _PR_SI_ARCHITECTURE "alpha" 18 #elif defined(__amd64__) 19 #define _PR_SI_ARCHITECTURE "amd64" 20 #elif defined(__m68k__) 21 #define _PR_SI_ARCHITECTURE "m68k" 22 #elif defined(__powerpc__) 23 #define _PR_SI_ARCHITECTURE "powerpc" 24 #elif defined(__sparc_v9__) 25 #define _PR_SI_ARCHITECTURE "sparc64" 26 #elif defined(__sparc__) 27 #define _PR_SI_ARCHITECTURE "sparc" 28 #elif defined(__mips__) 29 #define _PR_SI_ARCHITECTURE "mips" 30 #elif defined(__arm32__) || defined(__arm__) || defined(__armel__) \ 31 || defined(__armeb__) 32 #define _PR_SI_ARCHITECTURE "arm" 33 #endif 34 35 #if defined(__ELF__) 36 #define PR_DLL_SUFFIX ".so" 37 #else 38 #define PR_DLL_SUFFIX ".so.1.0" 39 #endif 40 41 #define _PR_VMBASE 0x30000000 42 #define _PR_STACK_VMBASE 0x50000000 43 #define _MD_DEFAULT_STACK_SIZE 65536L 44 #define _MD_MMAP_FLAGS MAP_PRIVATE 45 46 #undef HAVE_STACK_GROWING_UP 47 #define HAVE_DLL 48 #define USE_DLFCN 49 #define _PR_HAVE_SOCKADDR_LEN 50 #define _PR_NO_LARGE_FILES 51 #define _PR_STAT_HAS_ST_ATIMESPEC 52 #define _PR_POLL_AVAILABLE 53 #define _PR_USE_POLL 54 #define _PR_HAVE_SYSV_SEMAPHORES 55 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 56 57 #if __NetBSD_Version__ >= 105000000 58 #define _PR_INET6 59 #define _PR_HAVE_INET_NTOP 60 #define _PR_HAVE_GETHOSTBYNAME2 61 #define _PR_HAVE_GETADDRINFO 62 #define _PR_INET6_PROBE 63 #endif 64 65 #define USE_SETJMP 66 67 #ifndef _PR_PTHREADS 68 #include <setjmp.h> 69 70 #define PR_CONTEXT_TYPE sigjmp_buf 71 72 #define CONTEXT(_th) ((_th)->md.context) 73 74 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__) || defined(__powerpc__) 75 #define JB_SP_INDEX 2 76 #elif defined(__mips__) 77 #define JB_SP_INDEX 4 78 #elif defined(__alpha__) 79 #define JB_SP_INDEX 34 80 #elif defined(__arm32__) 81 /* 82 * On the arm32, the jmpbuf regs underwent a name change after NetBSD 1.3. 83 */ 84 #ifdef JMPBUF_REG_R13 85 #define JB_SP_INDEX JMPBUF_REG_R13 86 #else 87 #define JB_SP_INDEX _JB_REG_R13 88 #endif 89 #else 90 #error "Need to define SP index in jmp_buf here" 91 #endif 92 #define _MD_GET_SP(_th) (_th)->md.context[JB_SP_INDEX] 93 94 #define PR_NUM_GCREGS _JBLEN 95 96 /* 97 ** Initialize a thread context to run "_main()" when started 98 */ 99 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 100 { \ 101 *status = PR_TRUE; \ 102 if (sigsetjmp(CONTEXT(_thread), 1)) { \ 103 _main(); \ 104 } \ 105 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ 106 } 107 108 #define _MD_SWITCH_CONTEXT(_thread) \ 109 if (!sigsetjmp(CONTEXT(_thread), 1)) { \ 110 (_thread)->md.errcode = errno; \ 111 _PR_Schedule(); \ 112 } 113 114 /* 115 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 116 */ 117 #define _MD_RESTORE_CONTEXT(_thread) \ 118 { \ 119 errno = (_thread)->md.errcode; \ 120 _MD_SET_CURRENT_THREAD(_thread); \ 121 siglongjmp(CONTEXT(_thread), 1); \ 122 } 123 124 /* Machine-dependent (MD) data structures */ 125 126 struct _MDThread { 127 PR_CONTEXT_TYPE context; 128 int id; 129 int errcode; 130 }; 131 132 struct _MDThreadStack { 133 PRInt8 notused; 134 }; 135 136 struct _MDLock { 137 PRInt8 notused; 138 }; 139 140 struct _MDSemaphore { 141 PRInt8 notused; 142 }; 143 144 struct _MDCVar { 145 PRInt8 notused; 146 }; 147 148 struct _MDSegment { 149 PRInt8 notused; 150 }; 151 152 /* 153 * md-specific cpu structure field 154 */ 155 #define _PR_MD_MAX_OSFD FD_SETSIZE 156 157 struct _MDCPU_Unix { 158 PRCList ioQ; 159 PRUint32 ioq_timeout; 160 PRInt32 ioq_max_osfd; 161 PRInt32 ioq_osfd_cnt; 162 #ifndef _PR_USE_POLL 163 fd_set fd_read_set, fd_write_set, fd_exception_set; 164 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 165 fd_exception_cnt[_PR_MD_MAX_OSFD]; 166 #else 167 struct pollfd *ioq_pollfds; 168 int ioq_pollfds_size; 169 #endif /* _PR_USE_POLL */ 170 }; 171 172 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 173 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 174 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 175 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 176 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 177 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 178 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 179 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 180 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 181 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 182 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 183 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 184 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 185 186 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 187 188 struct _MDCPU { 189 struct _MDCPU_Unix md_unix; 190 }; 191 192 #define _MD_INIT_LOCKS() 193 #define _MD_NEW_LOCK(lock) PR_SUCCESS 194 #define _MD_FREE_LOCK(lock) 195 #define _MD_LOCK(lock) 196 #define _MD_UNLOCK(lock) 197 #define _MD_INIT_IO() 198 #define _MD_IOQ_LOCK() 199 #define _MD_IOQ_UNLOCK() 200 201 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 202 #define _MD_INIT_THREAD _MD_InitializeThread 203 #define _MD_EXIT_THREAD(thread) 204 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread 205 #define _MD_RESUME_THREAD(thread) _MD_resume_thread 206 #define _MD_CLEAN_THREAD(_thread) 207 208 #endif /* ! _PR_PTHREADS */ 209 210 extern void _MD_EarlyInit(void); 211 212 #define _MD_EARLY_INIT _MD_EarlyInit 213 #define _MD_FINAL_INIT _PR_UnixInit 214 #define _PR_HAVE_CLOCK_MONOTONIC 215 216 /* 217 * We wrapped the select() call. _MD_SELECT refers to the built-in, 218 * unwrapped version. 219 */ 220 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) 221 #if defined(_PR_POLL_AVAILABLE) 222 #include <poll.h> 223 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout) 224 #endif 225 226 #if NetBSD1_3 == 1L 227 typedef unsigned int nfds_t; 228 #endif 229 230 #endif /* nspr_netbsd_defs_h___ */