#include <sys/param.h>
#include <sys/file.h>
#include <unistd.h>
+#include <utime.h>
#include <assert.h>
#include <errno.h>
#include "sbcl.h"
#if defined LISP_FEATURE_GENCGC
#include "gencgc-internal.h"
#endif
+
+#if defined(LISP_FEATURE_SB_WTIMER) && !defined(LISP_FEATURE_DARWIN)
+# include <sys/event.h>
+#endif
+
\f
os_vm_size_t os_vm_page_size;
static void freebsd_init();
#endif /* __FreeBSD__ */
+#ifdef __OpenBSD__
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <sys/sysctl.h>
+#include <dlfcn.h>
+#ifdef LISP_FEATURE_X86
+#include <machine/cpu.h>
+#endif
+
+static void openbsd_init();
+#endif
+
void
os_init(char *argv[], char *envp[])
{
- os_vm_page_size = getpagesize();
+ os_vm_page_size = BACKEND_PAGE_BYTES;
#ifdef __NetBSD__
netbsd_init();
#elif defined(__FreeBSD__)
freebsd_init();
+#elif defined(__OpenBSD__)
+ openbsd_init();
+#elif defined(LISP_FEATURE_DARWIN)
+ darwin_init();
#endif
}
*/
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",
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
#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()");
}
#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
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)
#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 {
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;
#endif
char *
-os_get_runtime_executable_path()
+os_get_runtime_executable_path(int external)
{
char path[PATH_MAX + 1];
return NULL;
return copied_string(path);
}
-#elif defined(LISP_FEATURE_NETBSD)
+#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 */
+#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" or "daemon" login classes run sbcl with larger dynamic
+ * space sizes.
+ */
+ getrlimit (RLIMIT_DATA, &rl);
+ if (rl.rlim_cur < rl.rlim_max) {
+ rl.rlim_cur = rl.rlim_max;
+ if (setrlimit (RLIMIT_DATA, &rl) < 0) {
+ fprintf (stderr,
+ "RUNTIME WARNING: unable to raise process data size limit:\n\
+ %s.\n\
+The system may fail to start.\n",
+ strerror(errno));
+ }
+ }
+
+ /*
+ * 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 + 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"
+ " or raising the datasize or datasize-max limits in /etc/login.conf\n");
+}
+
+/* OpenBSD's dlsym() relies on the gcc bulitin
+ * __builtin_return_address(0) returning an address in the
+ * executable's text segment, but when called from lisp it will return
+ * an address in the dynamic space. Work around this by calling this
+ * wrapper function instead. Note that tail-call optimization will
+ * defeat this, disable it by saving the dlsym() return value in a
+ * volatile variable.
+*/
+void *
+os_dlsym(void *handle, const char *symbol)
+{
+ void * volatile ret = dlsym(handle, symbol);
+ return ret;
+}
+
+#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
projects / sbcl.git / blobdiff