samples: kprobes: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/kprobes/kprobe_example.o
WARNING: modpo

samples: kprobes: add missing MODULE_DESCRIPTION() macros

make allmodconfig && make W=1 C=1 reports:
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/kprobes/kprobe_example.o
WARNING: modpost: missing MODULE_DESCRIPTION() in samples/kprobes/kretprobe_example.o

Add the missing invocations of the MODULE_DESCRIPTION() macro.

Link: https://lore.kernel.org/all/[email protected]/

Signed-off-by: Jeff Johnson <[email protected]>
Signed-off-by: Masami Hiramatsu (Google) <[email protected]>

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samples/kprobes: Add LoongArch support

Add LoongArch specific info in handler_pre() and handler_post().

Tested-by: Jeff Xie <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>

samples/kprobes: Add LoongArch support

Add LoongArch specific info in handler_pre() and handler_post().

Tested-by: Jeff Xie <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Signed-off-by: Huacai Chen <[email protected]>

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samples: Use KSYM_NAME_LEN for kprobes

It is better and enough to use KSYM_NAME_LEN for kprobes
in samples, no need to define and use the other values.

Link: https://lkml.kernel.org/r/1654651402-21

samples: Use KSYM_NAME_LEN for kprobes

It is better and enough to use KSYM_NAME_LEN for kprobes
in samples, no need to define and use the other values.

Link: https://lkml.kernel.org/r/[email protected]

Signed-off-by: Tiezhu Yang <[email protected]>
Acked-by: Masami Hiramatsu (Google) <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

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kprobes: Remove kprobe::fault_handler

The reason for kprobe::fault_handler(), as given by their comment:

* We come here because instructions in the pre/post
* handler caused the page_fault, this

kprobes: Remove kprobe::fault_handler

The reason for kprobe::fault_handler(), as given by their comment:

* We come here because instructions in the pre/post
* handler caused the page_fault, this could happen
* if handler tries to access user space by
* copy_from_user(), get_user() etc. Let the
* user-specified handler try to fix it first.

Is just plain bad. Those other handlers are ran from non-preemptible
context and had better use _nofault() functions. Also, there is no
upstream usage of this.

Signed-off-by: Peter Zijlstra (Intel) <[email protected]>
Reviewed-by: Christoph Hellwig <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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samples/kprobes: Fix typo in handler_post()

It should use post_handler instead of pre_handler in handler_post().

As Joe Perches suggested, it would be better to use pr_fmt and remove
all the embedd

samples/kprobes: Fix typo in handler_post()

It should use post_handler instead of pre_handler in handler_post().

As Joe Perches suggested, it would be better to use pr_fmt and remove
all the embedded pre/post/fault strings. This would change the style of
the output through.

Fixes: e16c5dd5157e ("samples/kprobes: Add s390 case in kprobe example module")
Suggested-by: Joe Perches <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Acked-by: Marc Koderer <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

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samples/kprobes: Fix typo in handler_fault()

Fix a defective format in handler_fault() ending with an 'n' that
should be '\n'.

Suggested-by: Joe Perches <[email protected]>
Signed-off-by: Tiezhu Yang

samples/kprobes: Fix typo in handler_fault()

Fix a defective format in handler_fault() ending with an 'n' that
should be '\n'.

Suggested-by: Joe Perches <[email protected]>
Signed-off-by: Tiezhu Yang <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

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samples/kprobes: Add riscv support

Add riscv specific info dump in both handler_pre() and handler_post().

Signed-off-by: Jisheng Zhang <[email protected]>
Acked-by: Masami Hiramatsu <mhiramat@kern

samples/kprobes: Add riscv support

Add riscv specific info dump in both handler_pre() and handler_post().

Signed-off-by: Jisheng Zhang <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Palmer Dabbelt <[email protected]>

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samples/kprobes: Add ARM support

Plenty of architectures are already supported and this adds ARM
support.

Signed-off-by: Marc Koderer <[email protected]>
Acked-by: Masami Hiramatsu <mhiramat@kernel.

samples/kprobes: Add ARM support

Plenty of architectures are already supported and this adds ARM
support.

Signed-off-by: Marc Koderer <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

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samples/kprobes: Remove misleading comment

The example file supports many architectures not only x86 and PPC.

Signed-off-by: Marc Koderer <[email protected]>
Cc: [email protected]
Link: https://lor

samples/kprobes: Remove misleading comment

The example file supports many architectures not only x86 and PPC.

Signed-off-by: Marc Koderer <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Jonathan Corbet <[email protected]>

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docs: trace: fix the location of kprobes.rst

This patch was moved out of staging.

Fixes: 2165b82fde82 ("docs: Move kprobes.rst from staging/ to trace/")

Signed-off-by: Mauro Carvalho Chehab <mcheh

docs: trace: fix the location of kprobes.rst

This patch was moved out of staging.

Fixes: 2165b82fde82 ("docs: Move kprobes.rst from staging/ to trace/")

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/a6d4c62e19ab1510789418a3a5ad42980cd7ae3a.1599660067.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <[email protected]>

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kprobes: switch to kernel_clone()

The old _do_fork() helper is removed in favor of the new kernel_clone() helper.
The latter adheres to naming conventions for kernel internal syscall helpers.

Signe

kprobes: switch to kernel_clone()

The old _do_fork() helper is removed in favor of the new kernel_clone() helper.
The latter adheres to naming conventions for kernel internal syscall helpers.

Signed-off-by: Christian Brauner <[email protected]>
Cc: Mauro Carvalho Chehab <[email protected]>
Cc: Alexandre Chartre <[email protected]>
Cc: Jonathan Corbet <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Link: https://lore.kernel.org/r/[email protected]

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docs: move remaining stuff under Documentation/*.txt to Documentation/staging

There are several files that I was unable to find a proper place
for them, and 3 ones that are still in plain old text f

docs: move remaining stuff under Documentation/*.txt to Documentation/staging

There are several files that I was unable to find a proper place
for them, and 3 ones that are still in plain old text format.

Let's place those stuff behind the carpet, as we'd like to keep the
root directory clean.

We can later discuss and move those into better places.

Signed-off-by: Mauro Carvalho Chehab <[email protected]>
Link: https://lore.kernel.org/r/11bd0d75e65a874f7c276a0aeab0fe13f3376f5f.1592203650.git.mchehab+huawei@kernel.org
Signed-off-by: Jonathan Corbet <[email protected]>

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samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers.

Add __kprobes and NOKPROBE_SYMBOL() for sample kprobe handlers.

Signed-off-by: Masami Hiramatsu <[email protected]>
Signed-off-b

samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers.

Add __kprobes and NOKPROBE_SYMBOL() for sample kprobe handlers.

Signed-off-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Reviewed-by: Alexandre Chartre <[email protected]>
Acked-by: Peter Zijlstra <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]

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treewide: Add SPDX license identifier for more missed files

Add SPDX license identifiers to all files which:

- Have no license information of any form

- Have MODULE_LICENCE("GPL*") inside which

treewide: Add SPDX license identifier for more missed files

Add SPDX license identifiers to all files which:

- Have no license information of any form

- Have MODULE_LICENCE("GPL*") inside which was used in the initial
scan/conversion to ignore the file

These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:

GPL-2.0-only

Signed-off-by: Thomas Gleixner <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>

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arch: remove tile port

The Tile architecture port was added by Chris Metcalf in 2010, and
maintained until early 2018 when he orphaned it due to his departure
from Mellanox, and nobody else stepped

arch: remove tile port

The Tile architecture port was added by Chris Metcalf in 2010, and
maintained until early 2018 when he orphaned it due to his departure
from Mellanox, and nobody else stepped up to maintain it. The product
line is still around in the form of the BlueField SoC, but no longer
uses the Tile architecture.

There are also still products for sale with Tile-GX SoCs, notably the
Mikrotik CCR router family. The products all use old (linux-3.3) kernels
with lots of patches and won't be upgraded by their manufacturers. There
have been efforts to port both OpenWRT and Debian to these, but both
projects have stalled and are very unlikely to be continued in the future.

Given that we are reasonably sure that nobody is still using the port
with an upstream kernel any more, it seems better to remove it now while
the port is in a good shape than to let it bitrot for a few years first.

Cc: Chris Metcalf <[email protected]>
Cc: John Paul Adrian Glaubitz <[email protected]>
Link: http://www.mellanox.com/page/npu_multicore_overview
Link: https://jenkins.debian.net/view/rebootstrap/job/rebootstrap_tilegx_gcc7/
Signed-off-by: Arnd Bergmann <[email protected]>

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samples/kprobes: Add s390 case in kprobe example module

Add info prints in sample kprobe handlers for S/390

Signed-off-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Heiko Carstens <hei

samples/kprobes: Add s390 case in kprobe example module

Add info prints in sample kprobe handlers for S/390

Signed-off-by: Johannes Thumshirn <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Martin Schwidefsky <[email protected]>

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samples/kprobe: convert the printk to pr_info/pr_err

We prefer to use the pr_* to print out the log now, this patch converts
the printk to pr_info. In the error path, use the pr_err to replace the

samples/kprobe: convert the printk to pr_info/pr_err

We prefer to use the pr_* to print out the log now, this patch converts
the printk to pr_info. In the error path, use the pr_err to replace the
printk.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Huang Shijie <[email protected]>
Cc: Petr Mladek <[email protected]>
Cc: Steve Capper <[email protected]>
Cc: Ananth N Mavinakayanahalli <[email protected]>
Cc: Anil S Keshavamurthy <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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kprobes: Add arm64 case in kprobe example module

Add info prints in sample kprobe handlers for ARM64

Signed-off-by: Sandeepa Prabhu <[email protected]>
Signed-off-by: David A. Long <dave.

kprobes: Add arm64 case in kprobe example module

Add info prints in sample kprobe handlers for ARM64

Signed-off-by: Sandeepa Prabhu <[email protected]>
Signed-off-by: David A. Long <[email protected]>
Acked-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Catalin Marinas <[email protected]>

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samples/kprobes: print out the symbol name for the hooks

Print out the symbol name for the hooks, it makes the logs more
readable.

Link: http://lkml.kernel.org/r/1463535417-29637-2-git-send-email-s

samples/kprobes: print out the symbol name for the hooks

Print out the symbol name for the hooks, it makes the logs more
readable.

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Huang Shijie <[email protected]>
Cc: Petr Mladek <[email protected]>
Cc: Steve Capper <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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samples/kprobes: add a new module parameter

Add a new module parameter which can be used as the symbol name.

Without this patch, we can only test the "_do_fork" function with this
kernel module. W

samples/kprobes: add a new module parameter

Add a new module parameter which can be used as the symbol name.

Without this patch, we can only test the "_do_fork" function with this
kernel module. With this patch, the module becomes more flexible; we
can test any functions with this module with

# insmod kprobe_example.ko symbol="xxx"

Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Huang Shijie <[email protected]>
Cc: Petr Mladek <[email protected]>
Cc: Steve Capper <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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kprobes: use _do_fork() in samples to make them work again

Commit 3033f14ab78c ("clone: support passing tls argument via C rather
than pt_regs magic") introduced _do_fork() that allowed to pass @tls

kprobes: use _do_fork() in samples to make them work again

Commit 3033f14ab78c ("clone: support passing tls argument via C rather
than pt_regs magic") introduced _do_fork() that allowed to pass @tls
parameter.

The old do_fork() is defined only for architectures that are not ready
to use this way and do not define HAVE_COPY_THREAD_TLS.

Let's use _do_fork() in the kprobe examples to make them work again on
all architectures.

Signed-off-by: Petr Mladek <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: Masami Hiramatsu <[email protected]>
Cc: Andy Lutomirski <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: "H. Peter Anvin" <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Thiago Macieira <[email protected]>
Cc: Jiri Kosina <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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tile: support kprobes on tilegx

This change includes support for Kprobes, Jprobes and Return Probes.

Reviewed-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Tony Lu <zlu@tile

tile: support kprobes on tilegx

This change includes support for Kprobes, Jprobes and Return Probes.

Reviewed-by: Masami Hiramatsu <[email protected]>
Signed-off-by: Tony Lu <[email protected]>
Signed-off-by: Chris Metcalf <[email protected]>

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SAMPLES: kprobe_example: Make it print something on MIPS.

This KProbes example is a little useless if it doesn't print anything.
For MIPS print similar messages to those produced on x86 and PPC.

Si

SAMPLES: kprobe_example: Make it print something on MIPS.

This KProbes example is a little useless if it doesn't print anything.
For MIPS print similar messages to those produced on x86 and PPC.

Signed-off-by: David Daney <[email protected]>
To: [email protected]
To: [email protected]
To: [email protected]
To: [email protected]
To: [email protected]
Cc: [email protected]
Cc: [email protected]
Patchwork: https://patchwork.linux-mips.org/patch/1528/
Signed-off-by: Ralf Baechle <[email protected]>

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Kprobes: move kprobe examples to samples/

Move kprobes examples from Documentation/kprobes.txt to under samples/.
Patch originally by Randy Dunlap.

o Updated the patch to apply on 2.6.25-rc3
o Modi

Kprobes: move kprobe examples to samples/

Move kprobes examples from Documentation/kprobes.txt to under samples/.
Patch originally by Randy Dunlap.

o Updated the patch to apply on 2.6.25-rc3
o Modified examples code to build on multiple architectures. Currently,
the kprobe and jprobe examples code works for x86 and powerpc
o Cleaned up unneeded #includes
o Cleaned up Kconfig per Sam Ravnborg's suggestions to fix build break
on archs that don't have kretprobes
o Implemented suggestions by Mathieu Desnoyers on CONFIG_KRETPROBES
o Included Andrew Morton's cleanup based on x86-git
o Modified kretprobe_example to act as a arch-agnostic module to
determine routine execution times:
Use 'modprobe kretprobe_example func=<func_name>' to determine
execution time of func_name in nanoseconds.

Signed-off-by: Randy Dunlap <[email protected]>
Signed-off-by: Ananth N Mavinakayanahalli <[email protected]>
Acked-by: Mathieu Desnoyers <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>

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