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(__m68k__) 20 #define _PR_SI_ARCHITECTURE "m68k" 21 #elif defined(__powerpc__) 22 #define _PR_SI_ARCHITECTURE "powerpc" 23 #elif defined(__sparc__) 24 #define _PR_SI_ARCHITECTURE "sparc" 25 #elif defined(__arm__) 26 #define _PR_SI_ARCHITECTURE "arm" 27 #endif 28 29 #define PR_DLL_SUFFIX ".so" 30 31 #define _PR_VMBASE 0x30000000 32 #define _PR_STACK_VMBASE 0x50000000 33 #define _MD_DEFAULT_STACK_SIZE 65536L 34 #define _MD_MMAP_FLAGS MAP_PRIVATE 35 36 #undef HAVE_STACK_GROWING_UP 37 #define HAVE_DLL 38 #define USE_DLFCN 39 #define _PR_HAVE_SOCKADDR_LEN 40 #define _PR_HAVE_LARGE_OFF_T 41 #define _PR_STAT_HAS_ST_ATIMESPEC 42 #define _PR_POLL_AVAILABLE 43 #define _PR_USE_POLL 44 #define _PR_HAVE_SYSV_SEMAPHORES 45 #define PR_HAVE_SYSV_NAMED_SHARED_MEMORY 46 47 #define _PR_INET6 48 #define _PR_HAVE_INET_NTOP 49 #define _PR_HAVE_GETHOSTBYNAME2 50 #define _PR_HAVE_GETADDRINFO 51 #define _PR_INET6_PROBE 52 53 #define USE_SETJMP 54 55 #ifndef _PR_PTHREADS 56 #include <setjmp.h> 57 58 #define PR_CONTEXT_TYPE sigjmp_buf 59 60 #define CONTEXT(_th) ((_th)->md.context) 61 62 #if defined(__i386__) || defined(__sparc__) || defined(__m68k__) 63 #define JB_SP_INDEX 2 64 #elif defined(__powerpc__) 65 #define JB_SP_INDEX 1 66 #elif defined(__alpha__) 67 #define JB_SP_INDEX 34 68 #elif defined(__amd64__) 69 #define JB_SP_INDEX 6 70 #elif defined(__arm__) 71 #define JB_SP_INDEX 23 72 #else 73 #error "Need to define SP index in jmp_buf here" 74 #endif 75 #define _MD_GET_SP(_th) (_th)->md.context[JB_SP_INDEX] 76 77 #define PR_NUM_GCREGS _JBLEN 78 79 /* 80 ** Initialize a thread context to run "_main()" when started 81 */ 82 #define _MD_INIT_CONTEXT(_thread, _sp, _main, status) \ 83 { \ 84 *status = PR_TRUE; \ 85 if (sigsetjmp(CONTEXT(_thread), 1)) { \ 86 _main(); \ 87 } \ 88 _MD_GET_SP(_thread) = (unsigned char*) ((_sp) - 64); \ 89 } 90 91 #define _MD_SWITCH_CONTEXT(_thread) \ 92 if (!sigsetjmp(CONTEXT(_thread), 1)) { \ 93 (_thread)->md.errcode = errno; \ 94 _PR_Schedule(); \ 95 } 96 97 /* 98 ** Restore a thread context, saved by _MD_SWITCH_CONTEXT 99 */ 100 #define _MD_RESTORE_CONTEXT(_thread) \ 101 { \ 102 errno = (_thread)->md.errcode; \ 103 _MD_SET_CURRENT_THREAD(_thread); \ 104 siglongjmp(CONTEXT(_thread), 1); \ 105 } 106 107 /* Machine-dependent (MD) data structures */ 108 109 struct _MDThread { 110 PR_CONTEXT_TYPE context; 111 int id; 112 int errcode; 113 }; 114 115 struct _MDThreadStack { 116 PRInt8 notused; 117 }; 118 119 struct _MDLock { 120 PRInt8 notused; 121 }; 122 123 struct _MDSemaphore { 124 PRInt8 notused; 125 }; 126 127 struct _MDCVar { 128 PRInt8 notused; 129 }; 130 131 struct _MDSegment { 132 PRInt8 notused; 133 }; 134 135 /* 136 * md-specific cpu structure field 137 */ 138 #define _PR_MD_MAX_OSFD FD_SETSIZE 139 140 struct _MDCPU_Unix { 141 PRCList ioQ; 142 PRUint32 ioq_timeout; 143 PRInt32 ioq_max_osfd; 144 PRInt32 ioq_osfd_cnt; 145 #ifndef _PR_USE_POLL 146 fd_set fd_read_set, fd_write_set, fd_exception_set; 147 PRInt16 fd_read_cnt[_PR_MD_MAX_OSFD],fd_write_cnt[_PR_MD_MAX_OSFD], 148 fd_exception_cnt[_PR_MD_MAX_OSFD]; 149 #else 150 struct pollfd *ioq_pollfds; 151 int ioq_pollfds_size; 152 #endif /* _PR_USE_POLL */ 153 }; 154 155 #define _PR_IOQ(_cpu) ((_cpu)->md.md_unix.ioQ) 156 #define _PR_ADD_TO_IOQ(_pq, _cpu) PR_APPEND_LINK(&_pq.links, &_PR_IOQ(_cpu)) 157 #define _PR_FD_READ_SET(_cpu) ((_cpu)->md.md_unix.fd_read_set) 158 #define _PR_FD_READ_CNT(_cpu) ((_cpu)->md.md_unix.fd_read_cnt) 159 #define _PR_FD_WRITE_SET(_cpu) ((_cpu)->md.md_unix.fd_write_set) 160 #define _PR_FD_WRITE_CNT(_cpu) ((_cpu)->md.md_unix.fd_write_cnt) 161 #define _PR_FD_EXCEPTION_SET(_cpu) ((_cpu)->md.md_unix.fd_exception_set) 162 #define _PR_FD_EXCEPTION_CNT(_cpu) ((_cpu)->md.md_unix.fd_exception_cnt) 163 #define _PR_IOQ_TIMEOUT(_cpu) ((_cpu)->md.md_unix.ioq_timeout) 164 #define _PR_IOQ_MAX_OSFD(_cpu) ((_cpu)->md.md_unix.ioq_max_osfd) 165 #define _PR_IOQ_OSFD_CNT(_cpu) ((_cpu)->md.md_unix.ioq_osfd_cnt) 166 #define _PR_IOQ_POLLFDS(_cpu) ((_cpu)->md.md_unix.ioq_pollfds) 167 #define _PR_IOQ_POLLFDS_SIZE(_cpu) ((_cpu)->md.md_unix.ioq_pollfds_size) 168 169 #define _PR_IOQ_MIN_POLLFDS_SIZE(_cpu) 32 170 171 struct _MDCPU { 172 struct _MDCPU_Unix md_unix; 173 }; 174 175 #define _MD_INIT_LOCKS() 176 #define _MD_NEW_LOCK(lock) PR_SUCCESS 177 #define _MD_FREE_LOCK(lock) 178 #define _MD_LOCK(lock) 179 #define _MD_UNLOCK(lock) 180 #define _MD_INIT_IO() 181 #define _MD_IOQ_LOCK() 182 #define _MD_IOQ_UNLOCK() 183 184 #define _MD_INIT_RUNNING_CPU(cpu) _MD_unix_init_running_cpu(cpu) 185 #define _MD_INIT_THREAD _MD_InitializeThread 186 #define _MD_EXIT_THREAD(thread) 187 #define _MD_SUSPEND_THREAD(thread) _MD_suspend_thread 188 #define _MD_RESUME_THREAD(thread) _MD_resume_thread 189 #define _MD_CLEAN_THREAD(_thread) 190 191 #endif /* ! _PR_PTHREADS */ 192 193 #define _MD_EARLY_INIT _MD_EarlyInit 194 #define _MD_FINAL_INIT _PR_UnixInit 195 #define _PR_HAVE_CLOCK_MONOTONIC 196 197 /* 198 * We wrapped the select() call. _MD_SELECT refers to the built-in, 199 * unwrapped version. 200 */ 201 #define _MD_SELECT(nfds,r,w,e,tv) syscall(SYS_select,nfds,r,w,e,tv) 202 #include <poll.h> 203 #define _MD_POLL(fds,nfds,timeout) syscall(SYS_poll,fds,nfds,timeout) 204 205 #if OpenBSD1_3 == 1L 206 typedef unsigned int nfds_t; 207 #endif 208 209 #endif /* nspr_openbsd_defs_h___ */ 210