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a6484baa |
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25-Feb-2023 |
Tiezhu Yang <yangtiezhu@loongson.cn> |
samples/kprobes: Add LoongArch support Add LoongArch specific info in handler_pre() and handler_post(). Tested-by: Jeff Xie <xiehuan09@gmail.com> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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1e1fb420 |
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07-Jun-2022 |
Tiezhu Yang <yangtiezhu@loongson.cn> |
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/1654651402-21552-1-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
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ec6aba3d |
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25-May-2021 |
Peter Zijlstra <peterz@infradead.org> |
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) <peterz@infradead.org> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20210525073213.561116662@infradead.org
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db1ea668 |
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16-May-2021 |
Tiezhu Yang <yangtiezhu@loongson.cn> |
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 <joe@perches.com> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Acked-by: Marc Koderer <marc@koderer.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/1621218083-23519-3-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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61fa308f |
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16-May-2021 |
Tiezhu Yang <yangtiezhu@loongson.cn> |
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 <joe@perches.com> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/1621218083-23519-2-git-send-email-yangtiezhu@loongson.cn Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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8a07ac39 |
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29-Mar-2021 |
Jisheng Zhang <jszhang@kernel.org> |
samples/kprobes: Add riscv support Add riscv specific info dump in both handler_pre() and handler_post(). Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
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6970613b |
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12-Jan-2021 |
Marc Koderer <marc@koderer.com> |
samples/kprobes: Add ARM support Plenty of architectures are already supported and this adds ARM support. Signed-off-by: Marc Koderer <marc@koderer.com> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20210112154054.17138-1-marc@koderer.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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ee037040 |
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27-Dec-2020 |
Marc Koderer <marc@koderer.com> |
samples/kprobes: Remove misleading comment The example file supports many architectures not only x86 and PPC. Signed-off-by: Marc Koderer <marc@koderer.com> Cc: trivial@kernel.org Link: https://lore.kernel.org/r/20201228060415.2194-1-marc@koderer.com Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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7f9a2357 |
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09-Sep-2020 |
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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 <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/a6d4c62e19ab1510789418a3a5ad42980cd7ae3a.1599660067.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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25239fd3 |
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18-Aug-2020 |
Christian Brauner <christian.brauner@ubuntu.com> |
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 <christian.brauner@ubuntu.com> Cc: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> Cc: Alexandre Chartre <alexandre.chartre@oracle.com> Cc: Jonathan Corbet <corbet@lwn.net> Cc: Masami Hiramatsu <mhiramat@kernel.org> Link: https://lore.kernel.org/r/20200819104655.436656-9-christian.brauner@ubuntu.com
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8e2a46a4 |
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15-Jun-2020 |
Mauro Carvalho Chehab <mchehab+huawei@kernel.org> |
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 <mchehab+huawei@kernel.org> Link: https://lore.kernel.org/r/11bd0d75e65a874f7c276a0aeab0fe13f3376f5f.1592203650.git.mchehab+huawei@kernel.org Signed-off-by: Jonathan Corbet <corbet@lwn.net>
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d85eaa94 |
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26-Mar-2020 |
Masami Hiramatsu <mhiramat@kernel.org> |
samples/kprobes: Add __kprobes and NOKPROBE_SYMBOL() for handlers. Add __kprobes and NOKPROBE_SYMBOL() for sample kprobe handlers. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: Alexandre Chartre <alexandre.chartre@oracle.com> Acked-by: Peter Zijlstra <peterz@infradead.org> Link: https://lkml.kernel.org/r/20200505134059.878578033@linutronix.de
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09c434b8 |
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19-May-2019 |
Thomas Gleixner <tglx@linutronix.de> |
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 <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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bb9d8126 |
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09-Mar-2018 |
Arnd Bergmann <arnd@arndb.de> |
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 <chris.d.metcalf@gmail.com> Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> 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 <arnd@arndb.de>
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e16c5dd5 |
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14-Sep-2017 |
Johannes Thumshirn <jthumshirn@suse.de> |
samples/kprobes: Add s390 case in kprobe example module Add info prints in sample kprobe handlers for S/390 Signed-off-by: Johannes Thumshirn <jthumshirn@suse.de> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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e708c148 |
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03-Aug-2016 |
Huang Shijie <shijie.huang@arm.com> |
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/1464143083-3877-1-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com> Cc: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com> Cc: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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af78cede |
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07-Jul-2016 |
Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> |
kprobes: Add arm64 case in kprobe example module Add info prints in sample kprobe handlers for ARM64 Signed-off-by: Sandeepa Prabhu <sandeepa.s.prabhu@gmail.com> Signed-off-by: David A. Long <dave.long@linaro.org> Acked-by: Masami Hiramatsu <mhiramat@kernel.org> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
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ea9b5013 |
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20-May-2016 |
Huang Shijie <shijie.huang@arm.com> |
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-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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d04659ac |
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20-May-2016 |
Huang Shijie <shijie.huang@arm.com> |
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/1463535417-29637-1-git-send-email-shijie.huang@arm.com Signed-off-by: Huang Shijie <shijie.huang@arm.com> Cc: Petr Mladek <pmladek@suse.com> Cc: Steve Capper <steve.capper@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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54aea454 |
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01-Oct-2015 |
Petr Mladek <pmladek@suse.com> |
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 <pmladek@suse.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Thiago Macieira <thiago.macieira@intel.com> Cc: Jiri Kosina <jkosina@suse.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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3fa17c39 |
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09-Aug-2013 |
Tony Lu <zlu@tilera.com> |
tile: support kprobes on tilegx This change includes support for Kprobes, Jprobes and Return Probes. Reviewed-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com> Signed-off-by: Tony Lu <zlu@tilera.com> Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
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8a149237 |
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03-Aug-2010 |
David Daney <ddaney@caviumnetworks.com> |
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 <ddaney@caviumnetworks.com> To: linux-mips@linux-mips.org To: ananth@in.ibm.com To: anil.s.keshavamurthy@intel.com To: davem@davemloft.net To: masami.hiramatsu.pt@hitachi.com Cc: linux-kernel@vger.kernel.org Cc: hschauhan@nulltrace.org Patchwork: https://patchwork.linux-mips.org/patch/1528/ Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
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804defea |
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04-Mar-2008 |
Ananth N Mavinakayanahalli <ananth@in.ibm.com> |
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 <randy.dunlap@oracle.com> Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com> Acked-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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