Index: sys/kern/imgact_elf.c
===================================================================
--- sys/kern/imgact_elf.c
+++ sys/kern/imgact_elf.c
@@ -1248,6 +1248,7 @@
 	map = &vmspace->vm_map;
 
 	imgp->proc->p_sysent = sv;
+	imgp->proc->brand_info = brand_info;
 
 	maxv = vm_map_max(map) - lim_max(td, RLIMIT_STACK);
 	if (et_dyn_addr == ET_DYN_ADDR_RAND) {
Index: sys/sys/imgact_elf.h
===================================================================
--- sys/sys/imgact_elf.h
+++ sys/sys/imgact_elf.h
@@ -89,6 +89,7 @@
 	Elf_Brandnote *brand_note;
 	boolean_t	(*header_supported)(struct image_params *,
 	    int32_t *, uint32_t *);
+		/* High 8 bits of flags is private to the ABI */
 #define	BI_CAN_EXEC_DYN		0x0001
 #define	BI_BRAND_NOTE		0x0002	/* May have note.ABI-tag section. */
 #define	BI_BRAND_NOTE_MANDATORY	0x0004	/* Must have note.ABI-tag section. */
Index: sys/sys/proc.h
===================================================================
--- sys/sys/proc.h
+++ sys/sys/proc.h
@@ -734,6 +734,7 @@
 	LIST_HEAD(, proc) p_orphans;	/* (e) Pointer to list of orphans. */
 
 	TAILQ_HEAD(, kq_timer_cb_data)	p_kqtim_stop;	/* (c) */
+	void		*brand_info;	/* Elf_brandinfo, NULL for non Elf binaries */
 };
 
 #define	p_session	p_pgrp->pg_session