Auto merge of #3231 - devnexen:fbsd_procctl_x8664, r=JohnTitor

freebsd add few more procctl x86_64 constants.

Author: bors

src/unix/bsd/freebsdlike/freebsd/freebsd14/x86_64.rs

@@ -3,3 +3,10 @@ pub const PROC_KPTI_CTL_ENABLE_ON_EXEC: ::c_int = 1;
 pub const PROC_KPTI_CTL_DISABLE_ON_EXEC: ::c_int = 2;
 pub const PROC_KPTI_STATUS: ::c_int = ::PROC_PROCCTL_MD_MIN + 1;
 pub const PROC_KPTI_STATUS_ACTIVE: ::c_int = 0x80000000;
+pub const PROC_LA_CTL: ::c_int = ::PROC_PROCCTL_MD_MIN + 2;
+pub const PROC_LA_STATUS: ::c_int = ::PROC_PROCCTL_MD_MIN + 3;
+pub const PROC_LA_CTL_LA48_ON_EXEC: ::c_int = 1;
+pub const PROC_LA_CTL_LA57_ON_EXEC: ::c_int = 2;
+pub const PROC_LA_CTL_DEFAULT_ON_EXEC: ::c_int = 3;
+pub const PROC_LA_STATUS_LA48: ::c_int = 0x01000000;
+pub const PROC_LA_STATUS_LA57: ::c_int = 0x02000000;