debian/scripts/retpoline-check

   1 #!/bin/bash
   2
   3 flavour="$1"
   4 prev_abidir="$2"
   5 curr_abidir="$3"
   6 skipretpoline="$4"
   7
   8 echo "II: Checking retpoline indirections for $flavour...";
   9
  10 if [ "$skipretpoline" = 'true' ]; then
  11         echo "manual request ignoring retpoline delta"
  12 fi
  13
  14 if [ -f "$prev_abidir/ignore.retpoline" -o \
  15      -f "$prev_abidir/$flavour.ignore.retpoline" ]; then
  16         echo "explicitly ignoring retpoline delta"
  17         skipretpoline='true'
  18 fi
  19
  20 prev="$prev_abidir/$flavour.retpoline"
  21 curr="$curr_abidir/$flavour.retpoline"
  22 if [ ! -f "$prev" ]; then
  23         echo "previous retpoline file missing!"
  24         echo "   $prev"
  25         prev="/dev/null"
  26 fi
  27 if [ ! -f "$curr" ]; then
  28         echo "current retpoline file missing!"
  29         echo "   $curr"
  30         curr="/dev/null"
  31 fi
  32
  33 echo "II: retpoline delta in this package..."
  34 rc=0
  35 diff -u "$prev" "$curr" || true
  36 count=$( diff -u "$prev" "$curr" | grep '^+[^+]' | wc -l )
  37 if [ "$count" != 0 ]; then
  38         rc=1
  39         echo "WW: $count new retpoline sequences detected"
  40 fi
  41
  42 echo "II: Done";
  43 if [ "$skipretpoline" = 'true' -a "$rc" -ne 0 ]; then
  44         echo "II: ignoring errors"
  45         exit 0
  46 fi
  47 exit "$rc"