Show kprobes blacklist addresses under same condition of showing kallsyms addresses.
Since there are several name conflict for local symbols, kprobe blacklist needs to show each addresses so that user can identify where is on blacklist by comparing with kallsyms.
Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Cc: stable@vger.kernel.org --- Changes in v4: - Do not use local variables and fix comment. Changes in v3: - Updated based on the latest linus tree. --- kernel/kprobes.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-)
diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 5eb42c82497c..6ec1b5e024bf 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -2428,8 +2428,16 @@ static int kprobe_blacklist_seq_show(struct seq_file *m, void *v) struct kprobe_blacklist_entry *ent = list_entry(v, struct kprobe_blacklist_entry, list);
- seq_printf(m, "0x%px-0x%px\t%ps\n", (void *)ent->start_addr, - (void *)ent->end_addr, (void *)ent->start_addr); + /* + * If /proc/kallsyms is not showing kernel address, we won't + * show them here either. + */ + if (!kallsyms_show_value()) + seq_printf(m, "0x%px-0x%px\t%ps\n", NULL, NULL, + (void *)ent->start_addr); + else + seq_printf(m, "0x%px-0x%px\t%ps\n", (void *)ent->start_addr, + (void *)ent->end_addr, (void *)ent->start_addr); return 0; }