diff options
| author | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-12-02 11:22:11 -0500 |
|---|---|---|
| committer | Rodrigo Vivi <rodrigo.vivi@intel.com> | 2024-12-02 11:22:11 -0500 |
| commit | 8f109f287fdc7b8fc7dcb6b2190c8b17dc22fcda (patch) | |
| tree | 8c59d34866fcb6d121bbb30014ca46a49a818f1b /tools/testing/selftests/livepatch/test_modules | |
| parent | 54254727837440966c3381ea688df002ff14f269 (diff) | |
| parent | 40384c840ea1944d7c5a392e8975ed088ecf0b37 (diff) | |
Merge drm/drm-next into drm-xe-next
A backmerge to get the PMT preparation work for
merging the BMG PMT support.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Diffstat (limited to 'tools/testing/selftests/livepatch/test_modules')
| -rw-r--r-- | tools/testing/selftests/livepatch/test_modules/Makefile | 3 | ||||
| -rw-r--r-- | tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c | 38 |
2 files changed, 40 insertions, 1 deletions
diff --git a/tools/testing/selftests/livepatch/test_modules/Makefile b/tools/testing/selftests/livepatch/test_modules/Makefile index e6e638c4bcba..939230e571f5 100644 --- a/tools/testing/selftests/livepatch/test_modules/Makefile +++ b/tools/testing/selftests/livepatch/test_modules/Makefile @@ -6,11 +6,12 @@ obj-m += test_klp_atomic_replace.o \ test_klp_callbacks_demo.o \ test_klp_callbacks_demo2.o \ test_klp_callbacks_mod.o \ + test_klp_kprobe.o \ test_klp_livepatch.o \ + test_klp_shadow_vars.o \ test_klp_state.o \ test_klp_state2.o \ test_klp_state3.o \ - test_klp_shadow_vars.o \ test_klp_syscall.o # Ensure that KDIR exists, otherwise skip the compilation diff --git a/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c b/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c new file mode 100644 index 000000000000..67a8d29012f6 --- /dev/null +++ b/tools/testing/selftests/livepatch/test_modules/test_klp_kprobe.c @@ -0,0 +1,38 @@ +// SPDX-License-Identifier: GPL-2.0 +// Copyright (C) 2024 Marcos Paulo de Souza <mpdesouza@suse.com> +// Copyright (C) 2024 Michael Vetter <mvetter@suse.com> + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/kprobes.h> + +static bool has_post_handler = true; +module_param(has_post_handler, bool, 0444); + +static void __kprobes post_handler(struct kprobe *p, struct pt_regs *regs, + unsigned long flags) +{ +} + +static struct kprobe kp = { + .symbol_name = "cmdline_proc_show", +}; + +static int __init kprobe_init(void) +{ + if (has_post_handler) + kp.post_handler = post_handler; + + return register_kprobe(&kp); +} + +static void __exit kprobe_exit(void) +{ + unregister_kprobe(&kp); +} + +module_init(kprobe_init) +module_exit(kprobe_exit) +MODULE_LICENSE("GPL"); +MODULE_AUTHOR("Michael Vetter <mvetter@suse.com>"); +MODULE_DESCRIPTION("Livepatch test: kprobe function"); |