linux.git/tools/bootconfig/scripts, branch v6.18.21

tools/bootconfig: scripts/ftrace.sh was missing the shebang line, so added it

2025-07-23T15:23:39+00:00

This file was missing the shebang line, so added it.

Link: https://lore.kernel.org/all/20250722225351.8811-1-unixbhaskar@gmail.com/

[Masami: changed title. ]

Signed-off-by: Bhaskar Chowdhury 
Signed-off-by: Masami Hiramatsu (Google)

tools/bootconfig: fix single & used for logical condition

2023-02-21T23:27:35+00:00

A single & will create a background process and return true, so the grep
command will run even if the file checked in the first condition does not
exist.

Link: https://lore.kernel.org/all/20230112114215.17103-1-antonio.feijoo@suse.com/

Fixes: 1eaad3ac3f39 ("tools/bootconfig: Use per-group/all enable option in ftrace2bconf script")
Signed-off-by: Antonio Alvarez Feijoo 
Cc: stable@vger.kernel.org
Acked-by: Masami Hiramatsu (Google) 
Signed-off-by: Masami Hiramatsu (Google)

tools/bootconfig: Fix tracing_on option checking in ftrace2bconf.sh

2021-09-08T19:10:41+00:00

Since tracing_on indicates only "1" (default) or "0", ftrace2bconf.sh
only need to check the value is "0".

Link: https://lkml.kernel.org/r/163077087144.222577.6888011847727968737.stgit@devnote2

Fixes: 55ed4560774d ("tools/bootconfig: Add tracing_on support to helper scripts")
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Use per-group/all enable option in ftrace2bconf script

2021-08-16T15:39:50+00:00

Use per-group/all enable option instead of ftrace.events option.
This will make the bootconfig file more readable.

Link: https://lkml.kernel.org/r/162856129436.203126.12462564671412940618.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Add histogram syntax support to bconf2ftrace.sh

2021-08-16T15:39:50+00:00

Add histogram syntax support to bconf2ftrace.sh script.

Link: https://lkml.kernel.org/r/162856128672.203126.8240335908303312607.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Support per-group/all event enabling option

2021-08-16T15:37:23+00:00

Add group or all event enabling syntax support to bconf2ftrace.sh.
User can pass a bootconfig file which includes

ftrace[.instance.INSTANCE].event.enable

    and

ftrace[.instance.INSTANCE].event.GROUP.enable

correctly.

Link: https://lkml.kernel.org/r/162856127850.203126.16694505101982548237.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Add tracing_on support to helper scripts

2021-01-14T15:32:20+00:00

Add ftrace.instance.INSTANCE.tracing_on support to ftrace2bconf.sh
and bconf2ftrace.sh.

commit 8490db06f914 ("tracing/boot: Add per-instance tracing_on
option support") added the per-instance tracing_on option,
but forgot to update the helper scripts.

Link: https://lkml.kernel.org/r/160749166410.3497930.14204335886811029800.stgit@devnote2

Cc: stable@vger.kernel.org
Fixes: 8490db06f914 ("tracing/boot: Add per-instance tracing_on option support")
Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Add --init option for bconf2ftrace.sh

2020-09-19T02:17:13+00:00

Since the ftrace current setting may conflict with the new setting
from bootconfig, add the --init option to initialize ftrace before
setting for bconf2ftrace.sh.

E.g.
 $ bconf2ftrace.sh --init boottrace.bconf

This initialization method copied from selftests/ftrace.

Link: https://lkml.kernel.org/r/159704853203.175360.17029578033994278231.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Add a script to generates bootconfig from ftrace

2020-09-19T02:17:13+00:00

Add a ftrace2bconf.sh under tools/bootconfig/scripts which generates
a bootconfig file from the current ftrace settings.

To read the ftrace settings, ftrace2bconf.sh requires the root
privilege (or sudo). The ftrace2bconf.sh will output the bootconfig
to stdout and error messages to stderr, so usually you'll run it as

 # ftrace2bconf.sh > ftrace.bconf

Note that some ftrace configurations are not supported. For example,
function-call/callgraph trace/notrace settings are not supported because
the wildcard has been expanded and lost in the ftrace anymore.

Link: https://lkml.kernel.org/r/159704852163.175360.16738029520293360558.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)

tools/bootconfig: Add a script to generate ftrace shell-command from bootconfig

2020-09-19T02:17:13+00:00

Add a bconf2ftrace.sh under tools/bootconfig/scripts which generates
a shell script to setup boot-time trace from bootconfig file for testing
the bootconfig.

bconf2ftrace.sh will take a bootconfig file (includes boot-time tracing)
and convert it into a shell-script which is almost same as the boot-time
tracer does.
If --apply option is given, it also tries to apply those command to the
running kernel, which requires the root privilege (or sudo).

For example, if you just want to confirm the shell commands, save
the output as below.

 # bconf2ftrace.sh ftrace.bconf > ftrace.sh

Or, you can apply it directly.

 # bconf2ftrace.sh --apply ftrace.bconf

Note that some boot-time tracing parameters under kernel.* are not able
to set via tracefs nor procfs (e.g. tp_printk, traceoff_on_warning.),
so those are ignored.

Link: https://lkml.kernel.org/r/159704851101.175360.15119132351139842345.stgit@devnote2

Signed-off-by: Masami Hiramatsu 
Signed-off-by: Steven Rostedt (VMware)