kernel/linux.git/samples/kprobes/kretprobe_example.c, branch linux-6.5.y

samples: Use KSYM_NAME_LEN for kprobes

2022-07-12T20:36:45+00:00

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/1654651402-21552-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Tiezhu Yang Acked-by: Masami Hiramatsu (Google) Signed-off-by: Steven Rostedt (Google)

samples/kretprobes: Fix return value if register_kretprobe() failed

2021-10-26T21:23:46+00:00

Use the actual return value instead of always -1 if register_kretprobe() failed. E.g. without this patch: # insmod samples/kprobes/kretprobe_example.ko func=no_such_func insmod: ERROR: could not insert module samples/kprobes/kretprobe_example.ko: Operation not permitted With this patch: # insmod samples/kprobes/kretprobe_example.ko func=no_such_func insmod: ERROR: could not insert module samples/kprobes/kretprobe_example.ko: Unknown symbol in module Link: https://lkml.kernel.org/r/1635213091-24387-2-git-send-email-yangtiezhu@loongson.cn Fixes: 804defea1c02 ("Kprobes: move kprobe examples to samples/") Signed-off-by: Tiezhu Yang Acked-by: Masami Hiramatsu Signed-off-by: Steven Rostedt (VMware)

Merge tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux

2020-10-14T21:32:52+00:00

Pull kernel_clone() updates from Christian Brauner: "During the v5.9 merge window we reworked the process creation codepaths across multiple architectures. After this work we were only left with the _do_fork() helper based on the struct kernel_clone_args calling convention. As was pointed out _do_fork() isn't valid kernelese especially for a helper that isn't just static. This series removes the _do_fork() helper and introduces the new kernel_clone() helper. The process creation cleanup didn't change the name to something more reasonable mainly because _do_fork() was used in quite a few places. So sending this as a separate series seemed the better strategy. I originally intended to send this early in the v5.9 development cycle after the merge window had closed but given that this was touching quite a few places I decided to defer this until the v5.10 merge window" * tag 'kernel-clone-v5.9' of git://git.kernel.org/pub/scm/linux/kernel/git/brauner/linux: sched: remove _do_fork() tracing: switch to kernel_clone() kgdbts: switch to kernel_clone() kprobes: switch to kernel_clone() x86: switch to kernel_clone() sparc: switch to kernel_clone() nios2: switch to kernel_clone() m68k: switch to kernel_clone() ia64: switch to kernel_clone() h8300: switch to kernel_clone() fork: introduce kernel_clone()

docs: trace: fix the location of kprobes.rst

2020-09-10T16:46:24+00:00

This patch was moved out of staging. Fixes: 2165b82fde82 ("docs: Move kprobes.rst from staging/ to trace/") Signed-off-by: Mauro Carvalho Chehab Link: https://lore.kernel.org/r/a6d4c62e19ab1510789418a3a5ad42980cd7ae3a.1599660067.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet

tracing: switch to kernel_clone()

2020-08-20T11:12:59+00:00

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 Cc: Mauro Carvalho Chehab Cc: Alexandre Chartre Cc: Jonathan Corbet Cc: Thomas Gleixner Cc: Masami Hiramatsu Cc: Shuah Khan Cc: Ingo Molnar Cc: Steven Rostedt Cc: Xiao Yang Cc: Tom Zanussi Cc: linux-doc@vger.kernel.org Cc: linux-kselftest@vger.kernel.org Link: https://lore.kernel.org/r/20200819104655.436656-11-christian.brauner@ubuntu.com

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

2020-06-19T20:17:05+00:00

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 Link: https://lore.kernel.org/r/11bd0d75e65a874f7c276a0aeab0fe13f3376f5f.1592203650.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet

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

2020-05-12T15:15:33+00:00

Add __kprobes and NOKPROBE_SYMBOL() for sample kprobe handlers. Signed-off-by: Masami Hiramatsu Signed-off-by: Thomas Gleixner Reviewed-by: Alexandre Chartre Acked-by: Peter Zijlstra Link: https://lkml.kernel.org/r/20200505134059.878578033@linutronix.de

treewide: Add SPDX license identifier for more missed files

2019-05-21T08:50:45+00:00

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 Signed-off-by: Greg Kroah-Hartman

samples/kretprobe: fix the wrong type

2016-08-04T12:50:07+00:00

The regs_return_value() returns "unsigned long" or "long" value. But the retval is int type now, it may cause overflow, the log may becomes: [ 2911.078869] do_brk returned -2003877888 and took 4620 ns to execute This patch converts the retval to "unsigned long" type, and fixes the overflow issue. Link: http://lkml.kernel.org/r/1464143083-3877-4-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie Cc: Petr Mladek Cc: Steve Capper Cc: Ananth N Mavinakayanahalli Cc: Anil S Keshavamurthy Cc: Masami Hiramatsu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

samples/kretprobe: convert the printk to pr_info/pr_err

2016-08-04T12:50:07+00:00

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/1464143083-3877-3-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie Cc: Petr Mladek Cc: Steve Capper Cc: Ananth N Mavinakayanahalli Cc: Anil S Keshavamurthy Cc: Masami Hiramatsu Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds