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check_vmlinux: when readelf doesn't work, try harder with another way

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Stéphane Lesimple 2018-01-18 11:01:26 +01:00
parent 3be5e90481
commit 7fa2d6347b
1 changed files with 12 additions and 2 deletions
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14
spectre-meltdown-checker.sh
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@ -438,8 +438,18 @@ vmlinux=''
vmlinux_err=''
check_vmlinux()
{
readelf -h "$1" > /dev/null 2>&1 || return 1
return 0
readelf -h "$1" > /dev/null 2>&1 && return 0
# normally we would just use readelf to test for the binary, and it would be sufficient.
# but for some archs/distros it doesn't work well (issue #82), so we add a dumber check:
# uncompressed kernels always have the following string present
if ! which strings >/dev/null 2>&1; then
vmlinux_err="missing 'strings' tool, please install it, usually it's in the 'binutils' package"
return 0
else
strings "$1" | grep -q '^Linux version ' && return 0
fi
# not found: kernel not valid
return 1
}
try_decompress()