static void freebsd_init();
#endif /* __FreeBSD__ */
+#ifdef __OpenBSD__
+#include <sys/types.h>
+#include <sys/resource.h>
+#include <sys/stat.h>
+#include <dlfcn.h>
+
+static void openbsd_init();
+#endif
+
void
os_init(char *argv[], char *envp[])
{
netbsd_init();
#elif defined(__FreeBSD__)
freebsd_init();
+#elif defined(__OpenBSD__)
+ openbsd_init();
#endif
}
if (!maybe_gc(context)) {
interrupt_handle_now(signal, siginfo, context);
}
-#if defined(LISP_FEATURE_DARWIN)
- /* Work around G5 bug; fix courtesy gbyers */
- DARWIN_FIX_CONTEXT(context);
-#endif
#endif
}
}
(__siginfohandler_t *)
#endif
memory_fault_handler);
-#ifdef SIG_MEMORY_FAULT2
- undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT2,
-#ifdef LISP_FEATURE_FREEBSD
- (__siginfohandler_t *)
-#endif
- memory_fault_handler);
-#endif
#endif
#ifdef LISP_FEATURE_SB_THREAD
if (!cheneygc_handle_wp_violation(context, addr))
if (!handle_guard_page_triggered(context, addr))
interrupt_handle_now(signal, info, context);
- /* Work around G5 bug; fix courtesy gbyers */
- DARWIN_FIX_CONTEXT(context);
}
void
SHOW("os_install_interrupt_handlers()/bsd-os/!defined(GENCGC)");
undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT,
sigsegv_handler);
-#ifdef SIG_MEMORY_FAULT2
- undoably_install_low_level_interrupt_handler(SIG_MEMORY_FAULT2,
- sigsegv_handler);
-#endif
}
#endif /* defined GENCGC */
#endif /* __NetBSD__ */
#ifdef __FreeBSD__
+extern int getosreldate(void);
+
+int sig_memory_fault;
+
static void freebsd_init()
{
+ /* Memory fault signal on FreeBSD was changed from SIGBUS to
+ * SIGSEGV. */
+ if (getosreldate() < 700004)
+ sig_memory_fault = SIGBUS;
+ else
+ sig_memory_fault = SIGSEGV;
+
/* Quote from sbcl-devel (NIIMI Satoshi): "Some OSes, like FreeBSD
* 4.x with GENERIC kernel, does not enable SSE support even on
* SSE capable CPUs". Detect this situation and skip the
* x86-assem.S.
*/
#ifdef LISP_FEATURE_X86
- size_t len;
- int instruction_sse;
-
- len = sizeof(instruction_sse);
- if (sysctlbyname("hw.instruction_sse", &instruction_sse, &len, NULL, 0) == 0
- && instruction_sse != 0) {
- /* Use the SSE detector */
- fast_bzero_pointer = fast_bzero_detect;
+ {
+ size_t len;
+ int instruction_sse;
+
+ len = sizeof(instruction_sse);
+ if (sysctlbyname("hw.instruction_sse", &instruction_sse, &len,
+ NULL, 0) == 0 && instruction_sse != 0) {
+ /* Use the SSE detector */
+ fast_bzero_pointer = fast_bzero_detect;
+ }
}
#endif /* LISP_FEATURE_X86 */
}
#define KERN_PROC_PATHNAME 12
#endif
-extern int getosreldate(void);
-
char *
os_get_runtime_executable_path()
{
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()
{
return NULL;
}
}
-#else /* Not DARWIN or FREEBSD or NETBSD */
+#else /* Not DARWIN or FREEBSD or NETBSD or OPENBSD */
char *
os_get_runtime_executable_path()
{
return NULL;
}
#endif
+
+#ifdef __OpenBSD__
+void
+openbsd_init()
+{
+ struct rlimit rl;
+
+ /* 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
+ */
+ 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. 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.
+ */
+ 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)
+ fprintf (stderr,
+ "RUNTIME WARNING: data size resource limit may be too low,\n"
+ " try decreasing the dynamic space size with --dynamic-space-size\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
projects / sbcl.git / blobdiff