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don't exec 32bit binary on the cpu that has no aarch32.

This commit is contained in:
ryo 2018-11-28 08:12:15 +00:00
parent ac324355db
commit ac6a092d65
1 changed files with 10 additions and 2 deletions
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12
sys/arch/aarch64/aarch64/exec_machdep.c
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@ -1,4 +1,4 @@
/* $NetBSD: exec_machdep.c,v 1.3 2018/10/12 01:28:57 ryo Exp $ */
/* $NetBSD: exec_machdep.c,v 1.4 2018/11/28 08:12:15 ryo Exp $ */
/*-
* Copyright (c) 2014 The NetBSD Foundation, Inc.
@ -31,7 +31,7 @@
#include <sys/cdefs.h>
__KERNEL_RCSID(1, "$NetBSD: exec_machdep.c,v 1.3 2018/10/12 01:28:57 ryo Exp $");
__KERNEL_RCSID(1, "$NetBSD: exec_machdep.c,v 1.4 2018/11/28 08:12:15 ryo Exp $");
#include "opt_compat_netbsd.h"
#include "opt_compat_netbsd32.h"
@ -75,6 +75,14 @@ aarch64_netbsd_elf32_probe(struct lwp *l, struct exec_package *epp, void *eh0,
if (!elf_aapcs_p)
return ENOEXEC;
/*
* require aarch32 feature.
* XXX should consider some cluster may have no aarch32?
*/
if (__SHIFTOUT(l->l_cpu->ci_id.ac_aa64pfr0, ID_AA64PFR0_EL1_EL0) !=
ID_AA64PFR0_EL1_EL0_64_32)
return ENOEXEC;
return 0;
}
#endif