compiler-rt/lib/tsan/analyze_libtsan.sh

   1 #!/usr/bin/env bash
   2 #
   3 # Script that prints information about generated code in TSan runtime.
   4
   5 set -e
   6 set -u
   7
   8 if [[ "$#" != 1 ]]; then
   9   echo "Usage: $0 /path/to/binary/built/with/tsan"
  10   exit 1
  11 fi
  12
  13 get_asm() {
  14   grep __tsan_$1.: -A 10000 ${OBJDUMP_CONTENTS} | \
  15     awk "/[^:]$/ {print;} />:/ {c++; if (c == 2) {exit}}"
  16 }
  17
  18 list="write1 \
  19       write2 \
  20       write4 \
  21       write8 \
  22       read1 \
  23       read2 \
  24       read4 \
  25       read8 \
  26       func_entry \
  27       func_exit"
  28
  29 BIN=$1
  30 OUTPUT_DIR=$(mktemp -t -d analyze_libtsan_out.XXXXXXXX)
  31 OBJDUMP_CONTENTS=${OUTPUT_DIR}/libtsan_objdump
  32 NM_CONTENTS=${OUTPUT_DIR}/libtsan_nm
  33
  34 objdump -d $BIN  > ${OBJDUMP_CONTENTS}
  35 nm -S $BIN | grep "__tsan_" > ${NM_CONTENTS}
  36
  37 for f in $list; do
  38   file=${OUTPUT_DIR}/asm_$f.s
  39   get_asm $f > $file
  40   tot=$(wc -l < $file)
  41   size=$(grep __tsan_$f$ ${NM_CONTENTS} | awk --non-decimal-data '{print ("0x"$2)+0}')
  42   rsp=$(grep '(%rsp)' $file | wc -l)
  43   push=$(grep 'push' $file | wc -l)
  44   pop=$(grep 'pop' $file | wc -l)
  45   call=$(grep 'call' $file | wc -l)
  46   load=$(egrep 'mov .*\,.*\(.*\)|cmp .*\,.*\(.*\)' $file | wc -l)
  47   store=$(egrep 'mov .*\(.*\),' $file | wc -l)
  48   mov=$(grep 'mov' $file | wc -l)
  49   lea=$(grep 'lea' $file | wc -l)
  50   sh=$(grep 'shr\|shl' $file | wc -l)
  51   cmp=$(grep 'cmp\|test' $file | wc -l)
  52   printf "%10s tot %3d; size %4d; rsp %d; push %d; pop %d; call %d; load %2d; store %2d; sh %3d; mov %3d; lea %3d; cmp %3d\n" \
  53     $f $tot $size $rsp $push $pop $call $load $store $sh $mov $lea $cmp;
  54 done