153 lines
4.1 KiB
Bash
Executable File
153 lines
4.1 KiB
Bash
Executable File
#!/bin/bash
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# TO DO
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# This should be re-written in python.
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# Complain about dereferencing unset variables
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set -u
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typeset -i STARTTIME ENDTIME DURATION START_SEC START_USEC DUR_SEC DUR_USEC
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if [ "$#" -ne 1 ]
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then
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echo "Usage: mmc_trace_reduce <trace_file>" >&2
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exit 1
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fi
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exec < "$1"
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SAVED_START_LINE=""
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while read LINE
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do
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# Skip comment lines
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if [ -z "${LINE###*}" ]
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then
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continue
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fi
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# Fix up lines with nuisance spaces
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LINE=${LINE/AsyncTask /AsyncTask-}
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set $LINE
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if [ "${5##*mmc_blk_*_}" = "start:" ]
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then
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if [ ! -z "$SAVED_START_LINE" ]
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then
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echo "Ignoring consecutive start line" >&2
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continue
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fi
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SAVED_START_LINE="$LINE"
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# Found a start line. Extract the interesting bits
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TMP=${4%:}
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START_SEC="10#${TMP%%.*}"
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STARTTIME=START_SEC*1000000
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START_USEC="10#${TMP##*.}"
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STARTTIME=STARTTIME+START_USEC
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STARTPARMS="$6"
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STARTCMD=${STARTPARMS%%,addr=*}
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STARTCMD=${STARTCMD##*cmd=}
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STARTADDR=${STARTPARMS%%,size=*}
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STARTADDR=${STARTADDR##*addr=}
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STARTSIZE=${STARTPARMS##*size=}
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elif [ "${5##*mmc_blk_*_}" = "end:" ]
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then
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# Found an end line. Extract the interesting bits,
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# then make sure it matches with the saved start line,
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# Finally, do the math and emit a single reduced line
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TMP=${4%:}
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ENDTIME="${TMP%%.*}"
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ENDTIME=ENDTIME*1000000
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ENDTIME=ENDTIME+10#${TMP##*.}
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ENDPARMS="$6"
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ENDCMD=${ENDPARMS%%,addr=*}
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ENDCMD=${ENDCMD##*cmd=}
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ENDADDR=${ENDPARMS%%,size=*}
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ENDADDR=${ENDADDR##*addr=}
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ENDSIZE=${ENDPARMS##*size=}
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if [ "$ENDCMD" != "$STARTCMD" ]
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then
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echo "End cmd doesn't match start cmd, ignoring both" >&2
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SAVED_START_LINE=""
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continue
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fi
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if [ "$ENDADDR" != "$STARTADDR" ]
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then
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echo "End addr doesn't match start addr, ignoring both" >&2
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SAVED_START_LINE=""
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continue
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fi
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if [ "$ENDSIZE" != "$STARTSIZE" ]
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then
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echo "End size doesn't match start size, ignoring both" >&2
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SAVED_START_LINE=""
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continue
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fi
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# Turn the command number into a command the flash analysis tool
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# understands. The tool doesn't differentiate between the different
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# forms erase, so just emit "discard" for all of them. Also, ignore
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# the secure_trim2 and sanitize commands as the tool doesn't know
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# about them either.
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if [ "$ENDCMD" -eq 18 ]
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then
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ENDCMD="read"
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elif [ "$ENDCMD" -eq 25 ]
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then
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ENDCMD="write"
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elif [ "$ENDCMD" -eq 32 ]
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then
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ENDCMD="flush"
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continue
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elif [ "$ENDCMD" -eq 0 ]
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then
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ENDCMD="discard"
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elif [ "$ENDCMD" -eq 1 ]
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then
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ENDCMD="discard"
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elif [ "$ENDCMD" -eq 3 ]
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then
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ENDCMD="discard"
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elif [ "$ENDCMD" -eq 2147483648 ] # 0x80000000
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then
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ENDCMD="discard"
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elif [ "$ENDCMD" -eq 2147483649 ] # 0x80000001
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then
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ENDCMD="discard"
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elif [ "$ENDCMD" -eq 2147516416 ] # 0x80008000
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then
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# Ignore, as the analysis tool doesn't deal with this
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# ENDCMD="secure_trim2"
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SAVED_START_LINE=""
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continue
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elif [ "$ENDCMD" -eq 165 ]
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then
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# Ignore, as the analysis tool doesn't deal with this
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# ENDCMD="sanitize"
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SAVED_START_LINE=""
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continue
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else
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echo "Unrecognized command $ENDCMD, ignoring" >&2
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SAVED_START_LINE=""
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continue
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fi
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DURATION=ENDTIME-STARTTIME
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DUR_SEC=DURATION/1000000
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DUR_USEC=DURATION%1000000
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printf "$%s,%s,%s,%d.%06d,%d.%06d\n" "$ENDCMD" "$ENDADDR" "$ENDSIZE" "$START_SEC" "$START_USEC" "$DUR_SEC" "$DUR_USEC"
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SAVED_START_LINE=""
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fi
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# Ignore unknown lines and continue
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done
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