_openbsd.h (5722B)
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_openbsd_defs_h___ 7 #define nspr_openbsd_defs_h___ 8 9 #include <sys/syscall.h> 10 11 #define PR_LINKER_ARCH "openbsd" 12 #define _PR_SI_SYSNAME "OPENBSD" 13 #if defined(__i386__) 14 #define _PR_SI_ARCHITECTURE "x86" 15 #elif defined(__alpha__) 16 #define _PR_SI_ARCHITECTURE "alpha" 17 #elif defined(__amd64__) 18 #define _PR_SI_ARCHITECTURE "amd64" 19 #elif defined(__powerpc64__) 20 #define _PR_SI_ARCHITECTURE "powerpc64" 21 #elif defined(__powerpc__) 22 #define _PR_SI_ARCHITECTURE "powerpc" 23 #elif defined(__aarch64__) 24 #define _PR_SI_ARCHITECTURE "aarch64" 25 #elif defined(__sparc__) 26 #define _PR_SI_ARCHITECTURE "sparc" 27 #elif defined(__arm__) 28 #define _PR_SI_ARCHITECTURE "arm" 29 #endif 30 31 #define PR_DLL_SUFFIX ".so" 32 33 #define _PR_VMBASE 0x30000000 34 #define _PR_STACK_VMBASE 0x50000000 35 #define _MD_DEFAULT_STACK_SIZE 65536L 36 #define _MD_MMAP_FLAGS MAP_PRIVATE 37 38 #undef HAVE_STACK_GROWING_UP 39 #define HAVE_DLL 40 #define USE_DLFCN 41 #define _PR_HAVE_SOCKADDR_LEN 42 #define _PR_HAVE_LARGE_OFF_T 43 #define _PR_STAT_HAS_ST_ATIMESPEC 44 #define _PR_POLL_AVAILABLE 45 #define _PR_USE_POLL 46 #define _PR_HAVE_SYSV_SEMAPHORES 47 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 48 49 #define _PR_INET6 50 #define _PR_HAVE_INET_NTOP 51 #define _PR_HAVE_GETHOSTBYNAME2 52 #define _PR_HAVE_GETADDRINFO 53 #define _PR_INET6_PROBE 54 55 #define USE_SETJMP 56 57 #ifndef _PR_PTHREADS 58 #include <setjmp.h> 59 60 #define PR_CONTEXT_TYPE sigjmp_buf 61 62 #define CONTEXT(_th) ((_th)->md.context) 63 64 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__) 65 #define JB_SP_INDEX 2 66 #elif defined(__powerpc__) 67 #define JB_SP_INDEX 1 68 #elif defined(__alpha__) 69 #define JB_SP_INDEX 34 70 #elif defined(__amd64__) 71 #define JB_SP_INDEX 6 72 #elif defined(__arm__) 73 #define JB_SP_INDEX 23 74 #else 75 #error "Need to define SP index in jmp_buf here" 76 #endif 77 #define _MD_GET_SP(_th) (_th)->md.context[JB_SP_INDEX] 78 79 #define PR_NUM_GCREGS _JBLEN 80 81 /* 82 ** Initialize a thread context to run "_main()" when started 83 */ 84 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 85 { \ 86 *status = PR_TRUE; \ 87 if (sigsetjmp(CONTEXT(_thread), 1)) { \ 88 _main(); \ 89 } \ 90 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ 91 } 92 93 #define _MD_SWITCH_CONTEXT(_thread) \ 94 if (!sigsetjmp(CONTEXT(_thread), 1)) { \ 95 (_thread)->md.errcode = errno; \ 96 _PR_Schedule(); \ 97 } 98 99 /* 100 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 101 */ 102 #define _MD_RESTORE_CONTEXT(_thread) \ 103 { \ 104 errno = (_thread)->md.errcode; \ 105 _MD_SET_CURRENT_THREAD(_thread); \ 106 siglongjmp(CONTEXT(_thread), 1); \ 107 } 108 109 /* Machine-dependent (MD) data structures */ 110 111 struct _MDThread { 112 PR_CONTEXT_TYPE context; 113 int id; 114 int errcode; 115 }; 116 117 struct _MDThreadStack { 118 PRInt8 notused; 119 }; 120 121 struct _MDLock { 122 PRInt8 notused; 123 }; 124 125 struct _MDSemaphore { 126 PRInt8 notused; 127 }; 128 129 struct _MDCVar { 130 PRInt8 notused; 131 }; 132 133 struct _MDSegment { 134 PRInt8 notused; 135 }; 136 137 /* 138 * md-specific cpu structure field 139 */ 140 #define _PR_MD_MAX_OSFD FD_SETSIZE 141 142 struct _MDCPU_Unix { 143 PRCList ioQ; 144 PRUint32 ioq_timeout; 145 PRInt32 ioq_max_osfd; 146 PRInt32 ioq_osfd_cnt; 147 #ifndef _PR_USE_POLL 148 fd_set fd_read_set, fd_write_set, fd_exception_set; 149 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 150 fd_exception_cnt[_PR_MD_MAX_OSFD]; 151 #else 152 struct pollfd *ioq_pollfds; 153 int ioq_pollfds_size; 154 #endif /* _PR_USE_POLL */ 155 }; 156 157 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 158 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 159 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 160 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 161 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 162 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 163 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 164 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 165 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 166 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 167 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 168 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 169 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 170 171 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 172 173 struct _MDCPU { 174 struct _MDCPU_Unix md_unix; 175 }; 176 177 #define _MD_INIT_LOCKS() 178 #define _MD_NEW_LOCK(lock) PR_SUCCESS 179 #define _MD_FREE_LOCK(lock) 180 #define _MD_LOCK(lock) 181 #define _MD_UNLOCK(lock) 182 #define _MD_INIT_IO() 183 #define _MD_IOQ_LOCK() 184 #define _MD_IOQ_UNLOCK() 185 186 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 187 #define _MD_INIT_THREAD _MD_InitializeThread 188 #define _MD_EXIT_THREAD(thread) 189 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread 190 #define _MD_RESUME_THREAD(thread) _MD_resume_thread 191 #define _MD_CLEAN_THREAD(_thread) 192 193 #endif /* ! _PR_PTHREADS */ 194 195 extern void _MD_EarlyInit(void); 196 197 #define _MD_EARLY_INIT _MD_EarlyInit 198 #define _MD_FINAL_INIT _PR_UnixInit 199 #define _PR_HAVE_CLOCK_MONOTONIC 200 201 /* 202 * We wrapped the select() call. _MD_SELECT refers to the built-in, 203 * unwrapped version. 204 */ 205 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) 206 #include <poll.h> 207 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout) 208 209 #if OpenBSD1_3 == 1L 210 typedef unsigned int nfds_t; 211 #endif 212 213 #endif /* nspr_openbsd_defs_h___ */