tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc

Source file repositories/reference/linux-study-clean/tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/ftrace/test.d/trigger/trigger-stacktrace.tc
Extension
.tc
Size
883 bytes
Lines
34
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
# description: event trigger - test stacktrace-trigger
# requires: set_event events/sched/sched_process_fork/trigger

fail() { #msg
    echo $1
    exit_fail
}

FEATURE=`grep stacktrace events/sched/sched_process_fork/trigger`
if [ -z "$FEATURE" ]; then
    echo "stacktrace trigger is not supported"
    exit_unsupported
fi

echo "Test stacktrace trigger"
echo 0 > trace
echo 0 > options/stacktrace
echo 'stacktrace' > events/sched/sched_process_fork/trigger
( echo "forked")
grep "<stack trace>" trace > /dev/null || \
    fail "stacktrace trigger on sched_process_fork did not work"

reset_trigger

echo "Test stacktrace semantic errors"

! echo "stacktrace:foo" > events/sched/sched_process_fork/trigger
echo "stacktrace" > events/sched/sched_process_fork/trigger
! echo "stacktrace" > events/sched/sched_process_fork/trigger

exit 0

Annotation

Implementation Notes