From b885dc9f271a39254d09f0f6be9bda9142c9031b Mon Sep 17 00:00:00 2001
From: Adeel Mujahid <3840695+am11@users.noreply.github.com>
Date: Mon, 8 Jun 2026 01:11:12 +0300
Subject: [PATCH] Implement getexepath for OpenBSD

---
 src/native/minipal/getexepath.h | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/src/native/minipal/getexepath.h b/src/native/minipal/getexepath.h
index eaf88f27e6a5ee..dbcf58e554727d 100644
--- a/src/native/minipal/getexepath.h
+++ b/src/native/minipal/getexepath.h
@@ -15,6 +15,10 @@
 #include <sys/types.h>
 #include <sys/param.h>
 #include <sys/sysctl.h>
+#elif defined(__OpenBSD__)
+#include <string.h>
+#include <unistd.h>
+#include <sys/sysctl.h>
 #elif defined(_WIN32)
 #include <windows.h>
 #elif defined(__HAIKU__)
@@ -57,6 +61,16 @@ static inline char* minipal_getexepath(void)
     }
 
     return strdup(path);
+#elif defined(__OpenBSD__)
+    const int name[] = { CTL_KERN, KERN_PROC_ARGS, getpid(), KERN_PROC_ARGV };
+    void *argv[PATH_MAX];
+    size_t len = sizeof(argv);
+    if (sysctl(name, 4, argv, &len, NULL, 0) != 0)
+    {
+        return NULL;
+    }
+
+    return realpath((char *)argv[0], NULL);
 #elif defined(__sun)
     const char* path = getexecname();
     if (path == NULL)