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L4Sys: termination shortcuts

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Add two new breakpoints to L4Sys experiment that allow detecting that
execution terminated with an error: vga_console_blink() is called by the
kernel if JDB was entered (meaning we are hanging, e.g., due to an
assertion); also longjmp() is only used by PF handling code after no
valid page fault handling could be performed

Change-Id: Ice61039c4bd07815a316bbc0bdb39f3483d9a1da
This commit is contained in:
Bjoern Doebel
2013-11-06 17:34:42 +01:00
parent d4f22a38ff
commit 443b3e4919
2 changed files with 21 additions and 12 deletions
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11
scripts/l4sys/l4sys-prepare.sh
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@ -46,13 +46,22 @@ function BuildNRun {
# backup experiment config
cp $CFG $BAK
blink_addr=$(nm -C fiasco.image| grep blink | cut -d\ -f 1)
longjmp_addr=$(nm -C fiasco.image| grep longjmp | cut -d\ -f 1)
#echo -e "\033[35;1m[$(date)] ================== Step 0: Getting CR3 =================\033[0m"
#cat $BAK | sed -e 's/PREPARATION_STEP.*/PREPARATION_STEP 4/' >$CFG
#buildfail
#cr3=`$FAIL_CMD -f bochsrc-bd 2>/dev/null | grep CR3 | sed -e 's/ //g' | cut -d\= -f 2`
#echo \#defne L4SYS_ADDRESS_SPACE 0x$cr3
#cat $BAK | sed -e "s/L4SYS_ADDRESS_SPACE .*/L4SYS_ADDRESS_SPACE 0x$cr3/" >$CFG
#mv $CFG $BAK
mv $CFG $BAK
cat $BAK | sed -e "s/L4SYS_BREAK_BLINK .*/L4SYS_BREAK_BLINK 0x$blink_addr/" >$CFG
mv $CFG $BAK
cat $BAK | sed -e "s/L4SYS_BREAK_LONGJMP .*/L4SYS_BREAK_LONGJMP 0x$longjmp_addr/" >$CFG
mv $CFG $BAK
echo -e "\033[35;1m[$(date)] ================== Step 1: Generating Snapshot =================\033[0m"
cat $BAK | sed -e 's/PREPARATION_STEP.*/PREPARATION_STEP 1/' >$CFG