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From:   Masami Hiramatsu <mhiramat@kernel.org>
To:     Ingo Molnar <mingo@redhat.com>,
        Andrea Righi <righi.andrea@gmail.com>
Cc:     "Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>,
        Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>,
        "David S . Miller" <davem@davemloft.net>,
        Masami Hiramatsu <mhiramat@kernel.org>,
        Yonghong Song <yhs@fb.com>, Andy Lutomirski <luto@kernel.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Borislav Petkov <bp@alien8.de>,
        "H . Peter Anvin" <hpa@zytor.com>, x86@kernel.org,
        linux-kernel@vger.kernel.org
Subject: [PATCH v2 2/3] x86/kprobes: Show x86-64 specific blacklisted symbols correctly
Date:   Mon, 17 Dec 2018 17:21:24 +0900
Message-Id: <154503488425.26176.17136784384033608516.stgit@devbox>
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Show x86-64 specific blacklisted symbols in debugfs.
Since x86-64 prohibits probing on symbols which are in
entry text, those should be shown.

Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
---
 arch/x86/kernel/kprobes/core.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/arch/x86/kernel/kprobes/core.c b/arch/x86/kernel/kprobes/core.c
index 308bf103cc73..2a291fcb6443 100644
--- a/arch/x86/kernel/kprobes/core.c
+++ b/arch/x86/kernel/kprobes/core.c
@@ -1034,6 +1034,12 @@ bool arch_within_kprobe_blacklist(unsigned long addr)
 		 addr < (unsigned long)__entry_text_end);
 }
 
+int __init arch_populate_kprobe_blacklist(void)
+{
+	return kprobe_add_area_blacklist((unsigned long)__entry_text_start,
+					 (unsigned long)__entry_text_end);
+}
+
 int __init arch_init_kprobes(void)
 {
 	return 0;