修改4g拨号为QMI,需要在系统里后台执行quectel-CM

hc

2024-10-22 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5

 kernel/tools/testing/selftests/ftrace/test.d/trigger/trigger-trace-marker-snapshot.tc
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..
@@ -1,40 +1,13 @@
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 #!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # description: trace_marker trigger - test snapshot trigger
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+# requires: set_event snapshot events/ftrace/print/trigger
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 # flags: instance
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-do_reset() {
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-    reset_trigger
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-    echo > set_event
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-    echo 0 > snapshot
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-    clear_trace
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-}
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-
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 fail() { #msg
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-    do_reset
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     echo $1
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     exit_fail
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 }
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-
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-if [ ! -f set_event ]; then
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-    echo "event tracing is not supported"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f snapshot ]; then
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-    echo "snapshot is not supported"
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-    exit_unsupported
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-fi
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-
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-if [ ! -d events/ftrace/print ]; then
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-    echo "event trace_marker is not supported"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f events/ftrace/print/trigger ]; then
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-    echo "event trigger is not supported"
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-    exit_unsupported
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-fi
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 test_trace() {
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     file=$1
..
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@@ -47,16 +20,14 @@
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 	fi
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 	echo "testing $line for >$x<"
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 	match=`echo $line | sed -e "s/>$x<//"`
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-	if [ "$line" == "$match" ]; then
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+	if [ "$line" = "$match" ]; then
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 	    fail "$line does not have >$x< in it"
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 	fi
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-	let x=$x+2
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+	x=$((x+2))
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     done
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 }
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-do_reset
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-
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-echo "Test snapshot trace_marker tigger"
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+echo "Test snapshot trace_marker trigger"
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 echo 'snapshot' > events/ftrace/print/trigger
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..
..
@@ -68,7 +39,5 @@
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 test_trace trace 1
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 test_trace snapshot 2
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-
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-do_reset
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 exit 0