tools/testing/selftests/ftrace/test.d/event/trace_printk.tc

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/ftrace/test.d/event/trace_printk.tc
Extension
.tc
Size
775 bytes
Lines
28
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: Test trace_printk from module

rmmod trace-printk ||:
if ! modprobe trace-printk ; then
  echo "No trace-printk sample module - please make CONFIG_SAMPLE_TRACE_PRINTK=m"
  exit_unresolved;
fi

echo "Waiting for irq work"
sleep 1

grep -q ": This .* trace_bputs" trace
grep -q ": This .* trace_puts" trace
grep -q ": This .* trace_bprintk" trace
grep -q ": This .* trace_printk" trace

grep -q ": (irq) .* trace_bputs" trace
grep -q ": (irq) .* trace_puts" trace
grep -q ": (irq) .* trace_bprintk" trace
grep -q ": (irq) .* trace_printk" trace

grep -q "This is a %s that will use trace_bprintk" printk_formats
grep -q "(irq) This is a static string that will use trace_bputs" printk_formats

rmmod trace-printk ||:

Annotation

Implementation Notes