1 export PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/share/bcc/tools/ 2 export TMPDIR=/tmp/ 3 4 psk=/proc/sys/kernel/kptr_restrict 5 if [ -f $psk ]; then echo 0 > $psk; fi 6 7 override_vers=1 8 this_vers=$(/get_kvers.sh) 9 if [ -d /kernel-headers/ ]; then 10 export BCC_KERNEL_SOURCE=/kernel-headers/; 11 12 h_vers=0 13 vers_line=$(grep LINUX_VERSION_CODE /kernel-headers/include/generated/uapi/linux/version.h) 14 if [ "x$vers_line" != "x" ]; then 15 h_vers=$(echo $vers_line | cut -d ' ' -f3) 16 fi 17 18 if [ $this_vers -eq $h_vers ]; then 19 override_vers=0 20 else 21 this_major=$(($this_vers / (256 * 256))) 22 this_minor=$(($this_vers / 256 % 256)) 23 h_major=$(($h_vers / (256 * 256))) 24 h_minor=$(($h_vers / 256 % 256)) 25 if [ $this_major -ne $h_major ] || [ $this_minor -ne $h_minor ]; then 26 echo "Error: kernel version does not match installed headers ($this_major.$this_minor <> $h_major.$h_minor)" 27 echo "BCC will not work" 28 override_vers=0 29 fi 30 fi 31 fi 32 33 # Override kernel version if we haven't found headers with them. 34 # Needed for BCC to work on slightly mismatched kernels. 35 if [ $override_vers -eq 1 ]; then 36 export BCC_LINUX_VERSION_CODE=$this_vers 37 fi 38
