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crashlog: re-write usercrash-wrapper

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Using an O(n^2) function for look up the values from the arguments
simplify the complexity code of the userchrash-wrapper.

Tracked-On: #1386
Signed-off-by: Miguel Bernal Marin <miguel.bernal.marin@linux.intel.com>
Reviewed-by: Zhi Jin <zhi.jin@intel.com>
Acked-by: Chen Gang <gang.c.chen@intel.com>
This commit is contained in:
Miguel Bernal Marin 2018-09-19 03:13:10 -05:00 committed by wenlingz
parent 6981a4dff7
commit b1a05d17ed
1 changed files with 18 additions and 94 deletions
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112
tools/acrn-crashlog/data/usercrash-wrapper
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@ -17,38 +17,26 @@ if [ ! -f $default_core_pattern_file ]; then
exit -1
fi
# default coredump app and usercrash parameters index file under /tmp
d_param_index_file=/tmp/default_param_index_file
u_param_index_file=/tmp/usercrash_param_index_file
# We know the parameter order
my_order=(%E %P %u %g %s %t %c %h %e %p %i %I %d)
my_params=($*)
# function to get the params from the input arguments
# An O(n^2) function to look up the value
function get_params()
{
raw_params=$1
count=$[(${#raw_params} + 1) / 3]
for((i=0;i<$count;i++))
local ret=""
for args in $*
do
a_index=$[$i * 3 + 1]
param_list[$i]=${raw_params:($a_index):1}
for index in ${!my_order[@]}
do
if [ ${my_order[${index}]} = ${args} ]
then
ret="${ret} ${my_params[${index}]}"
break
fi
done
done
return 0;
}
# function to generate the index for the parameters of default coredump app
function gen_index()
{
full_list=$1
dump_list=$2
i=0
for arg in ${dump_list[@]}
do
q=(`expr \`expr $(expr index "$full_list" "$arg") + 1\` / 2`)
index[$i]=$[$q - 1]
let i+=1
done
return 0;
echo ${ret}
}
# get default core_pattern parameters list
@ -59,71 +47,7 @@ default_params=${default_content#* }
t_app=${default_content%% *}
default_app=${t_app#*|}
# function to save the index to /tmp. The index is the parameter
# index of the default coredump app and usercrash referring to
# the full parameters.
function save_index()
{
# get full coredump parameters list
pattern=`cat /proc/sys/kernel/core_pattern`
full_params=${pattern#* }
usercrash_var=$(get_params "%p %e %s")
default_var=$(get_params ${default_params})
get_params "$full_params"
for((i=0;i<$count;i++))
do
full_param_list[$i]=${param_list[$i]}
done
get_params "$default_params"
for((i=0;i<$count;i++))
do
default_param_list[$i]=${param_list[$i]}
done
# get the index of default parameter list accroding to
# the full parameter list
gen_index "${full_param_list[*]}" "${default_param_list[*]}"
for((j=0;j<$i;j++))
do
default_param_index[$j]=${index[$j]}
done
echo "${default_param_index[@]}" > $d_param_index_file
# get the index of usercrash_c parameter accroding to
# the full parameter list
usercrash_param_list=("p" "e" "s")
gen_index "${full_param_list[*]}" "${usercrash_param_list[*]}"
for((j=0;j<$i;j++))
do
usercrash_param_index[$j]=${index[$j]}
done
echo "${usercrash_param_index[@]}" > $u_param_index_file
}
if [[ ! -f $d_param_index_file ]] || [[ ! -f $u_param_index_file ]];then
save_index
fi
# get all the value of parameters in var[]
i=0
for p in "$@"
do
var[$i]=$p
let i+=1
done
str_usercrash_param_index=`cat $u_param_index_file`
u_param_index_arr=(${str_usercrash_param_index// / })
for((i=0;i<${#u_param_index_arr[@]};i++))
do
usercrash_var[$i]=${var[${u_param_index_arr[$i]}]}
done
str_default_param_index=`cat $d_param_index_file`
d_param_index_arr=(${str_default_param_index// / })
for((i=0;i<${#d_param_index_arr[@]};i++))
do
default_var[$i]=${var[${d_param_index_arr[$i]}]}
done
tee >(/usr/bin/usercrash_c ${usercrash_var[*]}) | $default_app ${default_var[*]}
tee >(/usr/bin/usercrash_c ${usercrash_var}) | ${default_app} ${default_var}