tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc

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

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/ftrace/test.d/trigger/trigger-hist-syntax-errors.tc
Extension
.tc
Size
804 bytes
Lines
17
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 histogram parser errors
# requires: set_event events/kmem/kmalloc/trigger events/kmem/kmalloc/hist error_log

check_error() { # command-with-error-pos-by-^
    ftrace_errlog_check 'hist:kmem:kmalloc' "$1" 'events/kmem/kmalloc/trigger'
}

check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid,^junk'	# INVALID_SORT_FIELD
check_error 'hist:keys=common_pid:vals=bytes_req:^sort='		# EMPTY_ASSIGNMENT
check_error 'hist:keys=common_pid:vals=bytes_req:^sort=common_pid,'	# EMPTY_SORT_FIELD
check_error 'hist:keys=common_pid:vals=bytes_req:sort=common_pid.^junk'	# INVALID_SORT_MODIFIER
check_error 'hist:keys=common_pid:vals=bytes_req,bytes_alloc:^sort=common_pid,bytes_req,bytes_alloc'	# TOO_MANY_SORT_FIELDS

exit 0

Annotation

Implementation Notes