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/ftrace/func-filter-pid.tc
..
..
@@ -1,24 +1,11 @@
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 #!/bin/sh
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 # SPDX-License-Identifier: GPL-2.0
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 # description: ftrace - function pid filters
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+# requires: set_ftrace_pid set_ftrace_filter function:tracer
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+# flags: instance
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 # Make sure that function pid matching filter works.
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 # Also test it on an instance directory
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-
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-if ! grep -q function available_tracers; then
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-    echo "no function tracer configured"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f set_ftrace_pid ]; then
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-    echo "set_ftrace_pid not found? Is function tracer not set?"
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-    exit_unsupported
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-fi
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-
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-if [ ! -f set_ftrace_filter ]; then
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-    echo "set_ftrace_filter not found? Is function tracer not set?"
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-    exit_unsupported
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-fi
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 do_function_fork=1
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11
 
..
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@@ -35,12 +22,6 @@
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 fi
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 do_reset() {
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-    reset_tracer
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-    clear_trace
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-    enable_tracing
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-    echo > set_ftrace_filter
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-    echo > set_ftrace_pid
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-
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     if [ $do_function_fork -eq 0 ]; then
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 	return
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     fi
..
..
@@ -54,15 +35,11 @@
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     exit_fail
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 }
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-yield() {
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-    ping localhost -c 1 || sleep .001 || usleep 1 || sleep 1
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-}
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-
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 do_test() {
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     disable_tracing
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     echo do_execve* > set_ftrace_filter
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-    echo *do_fork >> set_ftrace_filter
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+    echo $FUNCTION_FORK >> set_ftrace_filter
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     echo $PID > set_ftrace_pid
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     echo function > current_tracer
..
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@@ -106,13 +83,6 @@
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 }
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 do_test
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-
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-mkdir instances/foo
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-cd instances/foo
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-do_test
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-cd ../../
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-rmdir instances/foo
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-
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 do_reset
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 exit 0