#ifdef __FreeBSD__
#include <sys/sysctl.h>
+#include <osreldate.h>
static void freebsd_init();
#endif /* __FreeBSD__ */
#ifdef LISP_FEATURE_DARWIN
/* defined in ppc-darwin-os.c instead */
#elif defined(LISP_FEATURE_FREEBSD)
+#ifndef KERN_PROC_PATHNAME
+#define KERN_PROC_PATHNAME 12
+#endif
+
char *
os_get_runtime_executable_path()
{
char path[PATH_MAX + 1];
- /* Defined on FreeBSD 6 and later. -- JES, 2006-02-06. */
-#ifdef KERN_PROC_PATHNAME
- size_t len = PATH_MAX + 1;
- int mib[4];
- mib[0] = CTL_KERN;
- mib[1] = KERN_PROC;
- mib[2] = KERN_PROC_PATHNAME;
- mib[3] = -1;
- if (sysctl(mib, 4, &path, &len, NULL, 0) != 0)
- /* FIXME: Should we rather fall back into the /proc/-based
- * code below, so that an SBCL executable core made on
- * FreeBSD 6 would have at least some chance of working on
- * FreeBSD 4? -- JES, 2006-02-06.
- */
- return NULL;
-#else
- int size;
- size = readlink("/proc/curproc/file", path, sizeof(path) - 1);
- if (size < 0)
- return NULL;
- path[size] = '\0';
+ if (getosreldate() >= 600024) {
+ /* KERN_PROC_PATHNAME is available */
+ size_t len = PATH_MAX + 1;
+ int mib[4];
+
+ mib[0] = CTL_KERN;
+ mib[1] = KERN_PROC;
+ mib[2] = KERN_PROC_PATHNAME;
+ mib[3] = -1;
+ if (sysctl(mib, 4, &path, &len, NULL, 0) != 0)
+ return NULL;
+ } else {
+ int size;
+ size = readlink("/proc/curproc/file", path, sizeof(path) - 1);
+ if (size < 0)
+ return NULL;
+ path[size] = '\0';
+ }
if (strcmp(path, "unknown") == 0)
return NULL;
-#endif
return copied_string(path);
}
#else /* Not DARWIN or FREEBSD */