From: Masami Hiramatsu mhiramat@kernel.org
[ Upstream commit fe6e65615415987629a2dda583b4495677d8c388 ]
Show x86-64 specific blacklisted symbols in debugfs.
Since x86-64 prohibits probing on symbols which are in entry text, those should be shown.
Tested-by: Andrea Righi righi.andrea@gmail.com Signed-off-by: Masami Hiramatsu mhiramat@kernel.org Cc: Andy Lutomirski luto@kernel.org Cc: Anil S Keshavamurthy anil.s.keshavamurthy@intel.com Cc: Borislav Petkov bp@alien8.de Cc: David S. Miller davem@davemloft.net Cc: Linus Torvalds torvalds@linux-foundation.org Cc: Naveen N. Rao naveen.n.rao@linux.vnet.ibm.com Cc: Peter Zijlstra peterz@infradead.org Cc: Thomas Gleixner tglx@linutronix.de Cc: Yonghong Song yhs@fb.com Link: http://lkml.kernel.org/r/154503488425.26176.17136784384033608516.stgit@devbo... Signed-off-by: Ingo Molnar mingo@kernel.org Signed-off-by: Sasha Levin sashal@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 e83a057564d1b..173e915e11d54 100644 --- a/arch/x86/kernel/kprobes/core.c +++ b/arch/x86/kernel/kprobes/core.c @@ -1140,6 +1140,12 @@ bool arch_within_kprobe_blacklist(unsigned long addr) is_in_entry_trampoline_section; }
+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;