peter/spectre-meltdown-checker
peter/spectre-meltdown-checker
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chore: adjust some comments, add 2 missing inits

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This commit is contained in:
Stéphane Lesimple 2018-08-11 10:31:10 +02:00
parent 4747b932e7
commit 92d59cbdc1
1 changed files with 11 additions and 13 deletions
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24
spectre-meltdown-checker.sh
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@ -150,12 +150,12 @@ if which printf >/dev/null 2>&1; then
elif which echo >/dev/null 2>&1; then
echo_cmd=$(which echo)
else
# which command is broken?
# maybe the `which` command is broken?
[ -x /bin/echo ] && echo_cmd=/bin/echo
# for Android
[ -x /system/bin/echo ] && echo_cmd=/system/bin/echo
fi
# still empty ? fallback to builtin
# still empty? fallback to builtin
[ -z "$echo_cmd" ] && echo_cmd=echo
__echo()
{
@ -245,15 +245,13 @@ is_cpu_vulnerable_cached=0
_is_cpu_vulnerable_cached()
{
# shellcheck disable=SC2086
[ "$1" = 1 ] && return $variant1
# shellcheck disable=SC2086
[ "$1" = 2 ] && return $variant2
# shellcheck disable=SC2086
[ "$1" = 3 ] && return $variant3
# shellcheck disable=SC2086
[ "$1" = 3a ] && return $variant3a
# shellcheck disable=SC2086
[ "$1" = 4 ] && return $variant4
{
[ "$1" = 1 ] && return $variant1
[ "$1" = 2 ] && return $variant2
[ "$1" = 3 ] && return $variant3
[ "$1" = 3a ] && return $variant3a
[ "$1" = 4 ] && return $variant4
}
echo "$0: error: invalid variant '$1' passed to is_cpu_vulnerable()" >&2
exit 255
}
@ -889,9 +887,7 @@ load_cpuid()
}
# shellcheck disable=SC2034
{
EAX=1; EBX=2; ECX=3; EDX=4;
}
read_cpuid()
{
# leaf is the value of the eax register when calling the cpuid instruction:
@ -1258,6 +1254,8 @@ if [ "$opt_hw_only" = 1 ]; then
opt_variant1=0
opt_variant2=0
opt_variant3=0
opt_variant3a=0
opt_variant4=0
fi
fi