sof-test: remove dependency on /var/log/kern.log

Signed-off-by: Chao Song <chao.song@linux.intel.com>

Author: Chao Song

case-lib/lib.sh

@@ -339,13 +339,6 @@ die()
     exit 1
 }
 
-# force ask buffer data write into file system
-sudo sync -f || true
-# catch kern.log last line as current case start line
-if [ ! "$DMESG_LOG_START_LINE" ]; then
-    DMESG_LOG_START_LINE=$(wc -l /var/log/kern.log|awk '{print $1;}')
-fi
-
 is_sof_used()
 {
     grep -q "sof" /proc/asound/cards;

test-case/check-ipc-flood.sh

@@ -25,6 +25,7 @@ OPT_NAME['l']='loop'     OPT_DESC['l']='loop count'
 OPT_HAS_ARG['l']=1         OPT_VAL['l']=1
 
 func_opt_parse_option "$@"
+setup_kernel_check_point "now"
 
 lpc_loop_cnt=${OPT_VAL['c']}
 ipc_flood_dfs=${OPT_VAL['f']}

test-case/check-reboot.sh

@@ -150,7 +150,8 @@ $old_content
 
 $boot_once_flag
 export LOG_ROOT='$(realpath $LOG_ROOT)'
-export DMESG_LOG_START_LINE=$(wc -l /var/log/kern.log|awk '{print $1;}')
+setup_kernel_check_point "now"
+export KERNEL_CHECKPOINT
 bash -c '$full_cmd'
 
 exit 0

test-case/check-sof-logger.sh

@@ -22,8 +22,7 @@ func_opt_parse_option "$@"
 
 #TODO: need to add arguments for user to give location for logger and ldc file
 
-# hijack DMESG_LOG_START_LINE which refer dump kernel log in exit function
-DMESG_LOG_START_LINE=$(sof-get-kernel-line.sh|tail -n 1 |awk '{print $1;}')
+setup_kernel_check_point "now"
 
 # check sof-logger location
 if [ -z $(which sof-logger) ]; then

test-case/verify-firmware-presence.sh

@@ -20,6 +20,7 @@ set -e
 source "$(dirname "${BASH_SOURCE[0]}")"/../case-lib/lib.sh
 
 func_opt_parse_option "$@"
+setup_kernel_check_point "boot"
 
 path=$(sof-dump-status.py -P)
 platform=$(sof-dump-status.py -p)

test-case/verify-kernel-module-load-probe.sh

@@ -17,8 +17,7 @@ source $(dirname ${BASH_SOURCE[0]})/../case-lib/lib.sh
 
 func_opt_parse_option "$@"
 
-# hijack DMESG_LOG_START_LINE which refer dump kernel log in exit function
-DMESG_LOG_START_LINE=$(sof-get-kernel-line.sh|tail -n 1 |awk '{print $1;}')
+setup_kernel_check_point "now"
 
 dlogi "Checking if sof relative modules loaded"
 dlogc "lsmod | grep \"sof\""

test-case/verify-pcm-list.sh

@@ -29,8 +29,7 @@ tplg=${OPT_VAL['t']}
 tplg_path=`func_lib_get_tplg_path "$tplg"`
 [[ "$?" != "0" ]] && die "No available topology for this test case"
 
-# hijack DMESG_LOG_START_LINE which refer dump kernel log in exit function
-DMESG_LOG_START_LINE=$(sof-get-kernel-line.sh|tail -n 1 |awk '{print $1;}')
+setup_kernel_check_point "now"
 
 tplg_str="$(sof-tplgreader.py $tplg_path -d id pcm type -o)"
 pcm_str="$(sof-dump-status.py -i ${SOFCARD:-0})"

test-case/verify-sof-firmware-load.sh

@@ -20,9 +20,7 @@ source "$(dirname "${BASH_SOURCE[0]}")"/../case-lib/lib.sh
 
 func_opt_parse_option "$@"
 
-# hijack DMESG_LOG_START_LINE to dump kernel from file start is not Sub-Test
-# TODO: clean up Sub-Test feature
-alias | grep -q 'Sub-Test' || DMESG_LOG_START_LINE=$(sof-get-kernel-line.sh | tail -n 1 | awk '{print $1;}' )
+alias | grep -q 'Sub-Test' || setup_kernel_check_point "now"
 
 cmd="journalctl_cmd"
 

test-case/verify-tplg-binary.sh

@@ -23,6 +23,7 @@ OPT_NAME['t']='tplg'     OPT_DESC['t']='tplg file, default value is env TPLG: $'
 OPT_HAS_ARG['t']=1         OPT_VAL['t']="$TPLG"
 
 func_opt_parse_option "$@"
+setup_kernel_check_point "now"
 tplg=${OPT_VAL['t']}
 
 tplg_path=`func_lib_get_tplg_path "$tplg"`