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.
- Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
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
- Atlas domain: Support Tooling And Documentation / tools.
- Implementation status: atlas-only.
Implementation Notes
- This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
- Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
- Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.