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authorMasami Hiramatsu <mhiramat@kernel.org>2020-03-26 23:50:00 +0900
committerThomas Gleixner <tglx@linutronix.de>2020-05-12 17:15:32 +0200
commit16db6264c93d2d7df9eb8be5d9eb717ab30105fe (patch)
tree5276739d63b183b27c6b6a6a07af9be91ed4730b /kernel/module.c
parent1e6769b0aece51ea7a3dc3117c37d4a5669e4a21 (diff)
kprobes: Support NOKPROBE_SYMBOL() in modules
Support NOKPROBE_SYMBOL() in modules. NOKPROBE_SYMBOL() records only symbol address in "_kprobe_blacklist" section in the module. 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/20200505134059.771170126@linutronix.de
Diffstat (limited to 'kernel/module.c')
-rw-r--r--kernel/module.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/kernel/module.c b/kernel/module.c
index 978f3fa40850..faf733789560 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3197,6 +3197,9 @@ static int find_module_sections(struct module *mod, struct load_info *info)
#ifdef CONFIG_KPROBES
mod->kprobes_text_start = section_objs(info, ".kprobes.text", 1,
&mod->kprobes_text_size);
+ mod->kprobe_blacklist = section_objs(info, "_kprobe_blacklist",
+ sizeof(unsigned long),
+ &mod->num_kprobe_blacklist);
#endif
mod->extable = section_objs(info, "__ex_table",
sizeof(*mod->extable), &mod->num_exentries);