1 files changed, 10 insertions, 1 deletions
diff --git a/gdb/gdbserver/linux-low.h b/gdb/gdbserver/linux-low.h
index 7459710..cd3001d 100644
--- a/gdb/gdbserver/linux-low.h
+++ b/gdb/gdbserver/linux-low.h
@@ -343,7 +343,16 @@ struct lwp_info
 
 int linux_pid_exe_is_elf_64_file (int pid, unsigned int *machine);
 
-void linux_attach_lwp (unsigned long pid);
+/* Attach to PTID.  Returns 0 on success, non-zero otherwise (an
+   errno).  */
+int linux_attach_lwp (ptid_t ptid);
+
+/* Return the reason an attach failed, in string form.  ERR is the
+   error returned by linux_attach_lwp (an errno).  This string should
+   be copied into a buffer by the client if the string will not be
+   immediately used, or if it must persist.  */
+char *linux_attach_fail_reason_string (ptid_t ptid, int err);
+
 struct lwp_info *find_lwp_pid (ptid_t ptid);
 void linux_stop_lwp (struct lwp_info *lwp);