Documentation/core-api/printk-index.rst

1 .. SPDX-License-Identifier: GPL-2.0
19 Finding these changes in the sources would require non-trivial parsers.
36 named according to the binaries where the printk formats are built-in. There
44 might appear in "vmlinux" when the module is built-in.
48    $> head -1 /sys/kernel/debug/printk/index/vmlinux; shuf -n 5 vmlinux
49    # <level[,flags]> filename:line function "format"
50    <5> block/blk-settings.c:661 disk_stack_limits "%s: Warning: Device %s is misaligned\n"
54    <6> drivers/acpi/osl.c:1410 acpi_no_auto_serialize_setup "ACPI: auto-serialization disabled\n"
58    - :level: log level value: 0-7 for particular severity, -1 as default,
59 	'c' as continuous line without an explicit log level
60    - :flags: optional flags: currently only 'c' for KERN_CONT
61    - :filename\:line: source filename and line number of the related
64    - :function: function name where the printk() call is used.
65    - :format: format string
85 Subsystem specific printk wrappers
98 Additional changes are necessary for various subsystem specific wrappers
102 Only few subsystem specific wrappers have been updated so far,
107 Subsystem specific prefix
113 Subsystem specific wrappers usually add even more complicated
126 	pr_info("Auto-serialization disabled\n");
133   <6> drivers/acpi/osl.c:1410 acpi_no_auto_serialize_setup "ACPI: auto-serialization disabled\n"