2 files changed, 28 insertions, 0 deletions
diff --git a/src/vppinfra/unix-misc.c b/src/vppinfra/unix-misc.c
index 4dbc5ce98ce..29cbe0a557d 100644
--- a/src/vppinfra/unix-misc.c
+++ b/src/vppinfra/unix-misc.c
@@ -42,6 +42,8 @@
 #include <vppinfra/format.h>
 #ifdef __linux__
 #include <vppinfra/linux/sysfs.h>
+#else
+#include <sys/sysctl.h>
 #endif
 
 #include <sys/stat.h>
@@ -358,6 +360,28 @@ os_get_cpu_phys_core_id (int cpu_id)
 #endif
 }
 
+__clib_export u8 *
+os_get_exec_path ()
+{
+  u8 *rv = 0;
+#ifdef __linux__
+  char tmp[PATH_MAX];
+  ssize_t sz = readlink ("/proc/self/exe", tmp, sizeof (tmp));
+
+  if (sz <= 0)
+    return 0;
+#else
+  char tmp[MAXPATHLEN];
+  int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, -1 };
+  size_t sz = MAXPATHLEN;
+
+  if (sysctl (mib, 4, tmp, &sz, NULL, 0) == -1)
+    return 0;
+#endif
+  vec_add (rv, tmp, sz);
+  return rv;
+}
+
 /*
  * fd.io coding-style-patch-verification: ON
  *
diff --git a/src/vppinfra/unix.h b/src/vppinfra/unix.h
index 3ad57b05e72..abda21879f9 100644
--- a/src/vppinfra/unix.h
+++ b/src/vppinfra/unix.h
@@ -71,6 +71,10 @@ clib_bitmap_t *os_get_cpu_on_node_bitmap (int node);
 /* Retrieve physical core id of specific cpu, -1 if not available */
 int os_get_cpu_phys_core_id (int cpu);
 
+/* Retrieve the path of the current executable as a vector (not
+ * null-terminated). */
+u8 *os_get_exec_path ();
+
 #endif /* included_clib_unix_h */
 
 /*