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When looking up a symble using kvm_nlist(3), we need to prepend an

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underscore.  This fixes acpidump on arm64.  How this ever worked before
is unclear, but part of the puzzle is that we didn't properly check the
return value of the kvm_nlist(3) calls.  So fix that too.

ok deraadt@, mglocker@
This commit is contained in:
kettenis 2022-09-11 10:40:35 +00:00
parent 9cfac7781e
commit c3c82401f1
1 changed files with 4 additions and 4 deletions
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8
usr.sbin/acpidump/acpidump.c
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@ -1,4 +1,4 @@
/* $OpenBSD: acpidump.c,v 1.24 2021/07/12 15:09:20 beck Exp $ */
/* $OpenBSD: acpidump.c,v 1.25 2022/09/11 10:40:35 kettenis Exp $ */
/*
* Copyright (c) 2000 Mitsuru IWASAKI <iwasaki@FreeBSD.org>
* All rights reserved.
@ -714,8 +714,8 @@ efi_acpi_addr(void)
kd = kvm_openfiles(NULL, NULL, NULL, O_RDONLY, NULL);
if (kd == NULL)
goto on_error;
nl[0].n_name = "efi_acpi_table";
if (kvm_nlist(kd, nl) == -1)
nl[0].n_name = "_efi_acpi_table";
if (kvm_nlist(kd, nl) != 0)
goto on_error;
if (kvm_read(kd, nl[0].n_value, &table, sizeof(table)) == -1)
goto on_error;
@ -746,7 +746,7 @@ efi_acpi_addr(void)
if (kd == NULL)
goto on_error;
nl[0].n_name = "_bios_efiinfo";
if (kvm_nlist(kd, nl) == -1)
if (kvm_nlist(kd, nl) != 0)
goto on_error;
if (kvm_read(kd, nl[0].n_value, &ptr, sizeof(ptr)) == -1)
goto on_error;