1 #!/bin/bash 2 3 # TO DO 4 # This should be re-written in python. 5 6 # Complain about dereferencing unset variables 7 set -u 8 typeset -i STARTTIME ENDTIME DURATION START_SEC START_USEC DUR_SEC DUR_USEC 9 10 if [ "$#" -ne 1 ] 11 then 12 echo "Usage: mmc_trace_reduce <trace_file>" >&2 13 exit 1 14 fi 15 16 exec < "$1" 17 18 SAVED_START_LINE="" 19 20 while read LINE 21 do 22 # Skip comment lines 23 if [ -z "${LINE###*}" ] 24 then 25 continue 26 fi 27 28 # Fix up lines with nuisance spaces 29 LINE=${LINE/AsyncTask /AsyncTask-} 30 31 set $LINE 32 33 if [ "${5##*mmc_blk_*_}" = "start:" ] 34 then 35 if [ ! -z "$SAVED_START_LINE" ] 36 then 37 echo "Ignoring consecutive start line" >&2 38 continue 39 fi 40 SAVED_START_LINE="$LINE" 41 42 # Found a start line. Extract the interesting bits 43 TMP=${4%:} 44 START_SEC="10#${TMP%%.*}" 45 STARTTIME=START_SEC*1000000 46 START_USEC="10#${TMP##*.}" 47 STARTTIME=STARTTIME+START_USEC 48 49 STARTPARMS="$6" 50 STARTCMD=${STARTPARMS%%,addr=*} 51 STARTCMD=${STARTCMD##*cmd=} 52 STARTADDR=${STARTPARMS%%,size=*} 53 STARTADDR=${STARTADDR##*addr=} 54 STARTSIZE=${STARTPARMS##*size=} 55 56 elif [ "${5##*mmc_blk_*_}" = "end:" ] 57 then 58 # Found an end line. Extract the interesting bits, 59 # then make sure it matches with the saved start line, 60 # Finally, do the math and emit a single reduced line 61 TMP=${4%:} 62 ENDTIME="${TMP%%.*}" 63 ENDTIME=ENDTIME*1000000 64 ENDTIME=ENDTIME+10#${TMP##*.} 65 66 ENDPARMS="$6" 67 ENDCMD=${ENDPARMS%%,addr=*} 68 ENDCMD=${ENDCMD##*cmd=} 69 ENDADDR=${ENDPARMS%%,size=*} 70 ENDADDR=${ENDADDR##*addr=} 71 ENDSIZE=${ENDPARMS##*size=} 72 73 if [ "$ENDCMD" != "$STARTCMD" ] 74 then 75 echo "End cmd doesn't match start cmd, ignoring both" >&2 76 SAVED_START_LINE="" 77 continue 78 fi 79 if [ "$ENDADDR" != "$STARTADDR" ] 80 then 81 echo "End addr doesn't match start addr, ignoring both" >&2 82 SAVED_START_LINE="" 83 continue 84 fi 85 if [ "$ENDSIZE" != "$STARTSIZE" ] 86 then 87 echo "End size doesn't match start size, ignoring both" >&2 88 SAVED_START_LINE="" 89 continue 90 fi 91 92 # Turn the command number into a command the flash analysis tool 93 # understands. The tool doesn't differentiate between the different 94 # forms erase, so just emit "discard" for all of them. Also, ignore 95 # the secure_trim2 and sanitize commands as the tool doesn't know 96 # about them either. 97 if [ "$ENDCMD" -eq 18 ] 98 then 99 ENDCMD="read" 100 elif [ "$ENDCMD" -eq 25 ] 101 then 102 ENDCMD="write" 103 elif [ "$ENDCMD" -eq 32 ] 104 then 105 ENDCMD="flush" 106 continue 107 elif [ "$ENDCMD" -eq 0 ] 108 then 109 ENDCMD="discard" 110 elif [ "$ENDCMD" -eq 1 ] 111 then 112 ENDCMD="discard" 113 elif [ "$ENDCMD" -eq 3 ] 114 then 115 ENDCMD="discard" 116 elif [ "$ENDCMD" -eq 2147483648 ] # 0x80000000 117 then 118 ENDCMD="discard" 119 elif [ "$ENDCMD" -eq 2147483649 ] # 0x80000001 120 then 121 ENDCMD="discard" 122 elif [ "$ENDCMD" -eq 2147516416 ] # 0x80008000 123 then 124 # Ignore, as the analysis tool doesn't deal with this 125 # ENDCMD="secure_trim2" 126 SAVED_START_LINE="" 127 continue 128 elif [ "$ENDCMD" -eq 165 ] 129 then 130 # Ignore, as the analysis tool doesn't deal with this 131 # ENDCMD="sanitize" 132 SAVED_START_LINE="" 133 continue 134 else 135 echo "Unrecognized command $ENDCMD, ignoring" >&2 136 SAVED_START_LINE="" 137 continue 138 fi 139 140 DURATION=ENDTIME-STARTTIME 141 DUR_SEC=DURATION/1000000 142 DUR_USEC=DURATION%1000000 143 144 printf "$%s,%s,%s,%d.%06d,%d.%06d\n" "$ENDCMD" "$ENDADDR" "$ENDSIZE" "$START_SEC" "$START_USEC" "$DUR_SEC" "$DUR_USEC" 145 146 SAVED_START_LINE="" 147 fi 148 149 # Ignore unknown lines and continue 150 151 done 152 153
