X-Git-Url: http://repo.macrolet.net/gitweb/?a=blobdiff_plain;f=src%2Fruntime%2Fbsd-os.c;h=4c08b9798a733632d92c32b3eb35abc4c8d247e0;hb=4ba392170e98744f0ef0b8e08a5d42b988f1d0c9;hp=a364d5a0b0ef5f69e5d441df7961b8b17e559da2;hpb=c2ac5ba3964165ee2d21ccd4c6bf8bdc48e1a165;p=sbcl.git diff --git a/src/runtime/bsd-os.c b/src/runtime/bsd-os.c index a364d5a..4c08b97 100644 --- a/src/runtime/bsd-os.c +++ b/src/runtime/bsd-os.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include "sbcl.h" @@ -44,6 +45,11 @@ #if defined LISP_FEATURE_GENCGC #include "gencgc-internal.h" #endif + +#if defined(LISP_FEATURE_SB_WTIMER) && !defined(LISP_FEATURE_DARWIN) +# include +#endif + os_vm_size_t os_vm_page_size; @@ -70,7 +76,11 @@ static void freebsd_init(); #include #include #include +#include #include +#ifdef LISP_FEATURE_X86 +#include +#endif static void openbsd_init(); #endif @@ -78,7 +88,7 @@ static void openbsd_init(); void os_init(char *argv[], char *envp[]) { - os_vm_page_size = getpagesize(); + os_vm_page_size = BACKEND_PAGE_BYTES; #ifdef __NetBSD__ netbsd_init(); @@ -86,6 +96,8 @@ os_init(char *argv[], char *envp[]) freebsd_init(); #elif defined(__OpenBSD__) openbsd_init(); +#elif defined(LISP_FEATURE_DARWIN) + darwin_init(); #endif } @@ -194,20 +206,9 @@ is_valid_lisp_addr(os_vm_address_t addr) */ void -memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context -#if defined(LISP_FEATURE_FREEBSD) && defined(LISP_FEATURE_X86_64) -/* FreeBSD/amd64 stores fault address only in undocumented 4th arg. */ - ,void *fault_addr -#endif - ) +memory_fault_handler(int signal, siginfo_t *siginfo, os_context_t *context) { - os_context_t *context = arch_os_get_context(&void_context); -#if defined(LISP_FEATURE_FREEBSD) && defined(LISP_FEATURE_X86_64) - /* KLUDGE: Store fault address into si_addr for compatibilities. */ - siginfo->si_addr = fault_addr; -#else void *fault_addr = arch_get_bad_addr(signal, siginfo, context); -#endif #if defined(LISP_FEATURE_RESTORE_TLS_SEGMENT_REGISTER_FROM_CONTEXT) FSHOW_SIGNAL((stderr, "/ TLS: restoring fs: %p in memory_fault_handler\n", @@ -217,21 +218,19 @@ memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context FSHOW((stderr, "Memory fault at: %p, PC: %p\n", fault_addr, *os_context_pc_addr(context))); +#ifdef LISP_FEATURE_SB_SAFEPOINT + if (!handle_safepoint_violation(context, fault_addr)) +#endif + if (!gencgc_handle_wp_violation(fault_addr)) - if(!handle_guard_page_triggered(context,fault_addr)) { -#ifdef LISP_FEATURE_C_STACK_IS_CONTROL_STACK + if(!handle_guard_page_triggered(context,fault_addr)) lisp_memory_fault_error(context, fault_addr); -#else - if (!maybe_gc(context)) { - interrupt_handle_now(signal, siginfo, context); - } -#endif - } } #if defined(LISP_FEATURE_MACH_EXCEPTION_HANDLER) void -mach_error_memory_fault_handler(int signal, siginfo_t *siginfo, void *void_context) { +mach_error_memory_fault_handler(int signal, siginfo_t *siginfo, + os_context_t *context) { lose("Unhandled memory fault. Exiting."); } #endif @@ -252,14 +251,14 @@ os_install_interrupt_handlers(void) #endif #ifdef LISP_FEATURE_SB_THREAD - undoably_install_low_level_interrupt_handler(SIG_INTERRUPT_THREAD, - interrupt_thread_handler); +# ifdef LISP_FEATURE_SB_SAFEPOINT +# ifdef LISP_FEATURE_SB_THRUPTION + undoably_install_low_level_interrupt_handler(SIGPIPE, thruption_handler); +# endif +# else undoably_install_low_level_interrupt_handler(SIG_STOP_FOR_GC, sig_stop_for_gc_handler); -#ifdef SIG_RESUME_FROM_GC - undoably_install_low_level_interrupt_handler(SIG_RESUME_FROM_GC, - sig_stop_for_gc_handler); -#endif +# endif #endif SHOW("leaving os_install_interrupt_handlers()"); } @@ -267,9 +266,8 @@ os_install_interrupt_handlers(void) #else /* Currently PPC/Darwin/Cheney only */ static void -sigsegv_handler(int signal, siginfo_t *info, void* void_context) +sigsegv_handler(int signal, siginfo_t *info, os_context_t *context) { - os_context_t *context = arch_os_get_context(&void_context); #if 0 unsigned int pc = (unsigned int *)(*os_context_pc_addr(context)); #endif @@ -360,6 +358,12 @@ _readdir(DIR *dirp) return readdir(dirp); } +int +_utime(const char *file, const struct utimbuf *timep) +{ + return utime(file, timep); +} + /* Used in sb-bsd-sockets. */ int _socket(int domain, int type, int protocol) @@ -403,14 +407,14 @@ static void freebsd_init() #endif /* LISP_FEATURE_X86 */ } -#if defined(LISP_FEATURE_SB_THREAD) && !defined(LISP_FEATURE_SB_PTHREAD_FUTEX) +#if defined(LISP_FEATURE_SB_THREAD) && defined(LISP_FEATURE_SB_FUTEX) \ + && !defined(LISP_FEATURE_SB_PTHREAD_FUTEX) int futex_wait(int *lock_word, long oldval, long sec, unsigned long usec) { struct timespec timeout; int ret; -again: if (sec < 0) ret = umtx_wait((void *)lock_word, oldval, NULL); else { @@ -425,8 +429,7 @@ again: case ETIMEDOUT: return 1; case EINTR: - /* spurious wakeup from interrupt */ - goto again; + return 2; default: /* EWOULDBLOCK and others, need to check the lock */ return -1; @@ -449,7 +452,7 @@ futex_wake(int *lock_word, int n) #endif char * -os_get_runtime_executable_path() +os_get_runtime_executable_path(int external) { char path[PATH_MAX + 1]; @@ -477,35 +480,56 @@ os_get_runtime_executable_path() } #elif defined(LISP_FEATURE_NETBSD) || defined(LISP_FEATURE_OPENBSD) char * -os_get_runtime_executable_path() +os_get_runtime_executable_path(int external) { struct stat sb; - char *path = strdup("/proc/curproc/file"); - if (path && ((stat(path, &sb)) == 0)) - return path; - else { - fprintf(stderr, "Couldn't stat /proc/curproc/file; is /proc mounted?\n"); - return NULL; - } + if (!external && stat("/proc/curproc/file", &sb) == 0) + return copied_string("/proc/curproc/file"); + return NULL; } #else /* Not DARWIN or FREEBSD or NETBSD or OPENBSD */ char * -os_get_runtime_executable_path() +os_get_runtime_executable_path(int external) { return NULL; } #endif #ifdef __OpenBSD__ + +int openbsd_use_fxsave = 0; + void openbsd_init() { +#ifdef LISP_FEATURE_X86 + int mib[2]; + size_t size; +#endif + /* + * Show a warning if it looks like the memory available after + * allocating the spaces won't be at least this much. + */ +#ifdef LISP_FEATURE_X86_64 + const int wantfree = 64 * 1024 * 1024; +#else + const int wantfree = 32 * 1024 * 1024; +#endif struct rlimit rl; +#ifdef LISP_FEATURE_X86 + /* Save the machdep.osfxsr sysctl for use by os_restore_fp_control() */ + mib[0] = CTL_MACHDEP; + mib[1] = CPU_OSFXSR; + size = sizeof (openbsd_use_fxsave); + sysctl(mib, 2, &openbsd_use_fxsave, &size, NULL, 0); +#endif + /* OpenBSD, like NetBSD, counts mmap()ed space against the * process's data size limit. If the soft limit is lower than the * hard limit then try to yank it up, this lets users in the - * "staff" login class run sbcl with a default /etc/login.conf + * "staff" or "daemon" login classes run sbcl with larger dynamic + * space sizes. */ getrlimit (RLIMIT_DATA, &rl); if (rl.rlim_cur < rl.rlim_max) { @@ -519,18 +543,17 @@ The system may fail to start.\n", } } - /* Display a (hopefully) helpful warning if it looks like we won't - * be able to allocate enough memory. In testing I found that on - * my system at least, a minimum of 25M on top of the three space - * sizes was needed to start SBCL. Show a warning below 32M so as - * to leave a little breathing room. + /* + * Display a (hopefully) helpful warning if it looks like we won't + * be able to allocate enough memory. */ getrlimit (RLIMIT_DATA, &rl); if (dynamic_space_size + READ_ONLY_SPACE_SIZE + STATIC_SPACE_SIZE + - LINKAGE_TABLE_SPACE_SIZE + (32*1024*1024) > rl.rlim_cur) + LINKAGE_TABLE_SPACE_SIZE + wantfree > rl.rlim_cur) fprintf (stderr, "RUNTIME WARNING: data size resource limit may be too low,\n" - " try decreasing the dynamic space size with --dynamic-space-size\n"); + " try decreasing the dynamic space size with --dynamic-space-size\n" + " or raising the datasize or datasize-max limits in /etc/login.conf\n"); } /* OpenBSD's dlsym() relies on the gcc bulitin @@ -549,3 +572,60 @@ os_dlsym(void *handle, const char *symbol) } #endif + +#if defined(LISP_FEATURE_SB_WTIMER) && !defined(LISP_FEATURE_DARWIN) +/* + * Waitable timer implementation for the safepoint-based (SIGALRM-free) + * timer facility using kqueue. + */ +int +os_create_wtimer() +{ + int kq = kqueue(); + if (kq == -1) + lose("os_create_wtimer: kqueue"); + return kq; +} + +int +os_wait_for_wtimer(int kq) +{ + struct kevent ev; + int n; + if ( (n = kevent(kq, 0, 0, &ev, 1, 0)) == -1) { + if (errno != EINTR) + lose("os_wtimer_listen failed"); + n = 0; + } + return n != 1; +} + +void +os_close_wtimer(int kq) +{ + if (close(kq) == -1) + lose("os_close_wtimer failed"); +} + +void +os_set_wtimer(int kq, int sec, int nsec) +{ + long long msec + = ((long long) sec) * 1000 + (long long) (nsec+999999) / 1000000; + if (msec > INT_MAX) msec = INT_MAX; + + struct kevent ev; + EV_SET(&ev, 1, EVFILT_TIMER, EV_ADD|EV_ENABLE|EV_ONESHOT, 0, (int)msec, 0); + if (kevent(kq, &ev, 1, 0, 0, 0) == -1) + perror("os_set_wtimer: kevent"); +} + +void +os_cancel_wtimer(int kq) +{ + struct kevent ev; + EV_SET(&ev, 1, EVFILT_TIMER, EV_DISABLE, 0, 0, 0); + if (kevent(kq, &ev, 1, 0, 0, 0) == -1 && errno != ENOENT) + perror("os_cancel_wtimer: kevent"); +} +#endif