diff options
| author | Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> | 2017-10-23 18:37:40 +0200 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-11-12 13:51:42 +0100 |
| commit | 67ac0bfe29e9b4359012a8961c196baa813c707a (patch) | |
| tree | 642837ee8cff30edda103fedacdc6e234b3fa7f3 /arch/powerpc/lib | |
| parent | powerpc/kprobes: Do not disable interrupts for optprobes and kprobes_on_ftrace (diff) | |
| download | linux-67ac0bfe29e9b4359012a8961c196baa813c707a.tar.xz linux-67ac0bfe29e9b4359012a8961c196baa813c707a.zip | |
powerpc/kprobes: Blacklist emulate_update_regs() from kprobes
Commit 3cdfcbfd32b9d ("powerpc: Change analyse_instr so it doesn't
modify *regs") introduced emulate_update_regs() to perform part of what
emulate_step() was doing earlier. However, this function was not added
to the kprobes blacklist. Add it so as to prevent it from being probed.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/lib')
| -rw-r--r-- | arch/powerpc/lib/sstep.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c index 8c3955e183d4..70274b7b4773 100644 --- a/arch/powerpc/lib/sstep.c +++ b/arch/powerpc/lib/sstep.c @@ -2717,6 +2717,7 @@ void emulate_update_regs(struct pt_regs *regs, struct instruction_op *op) } regs->nip = next_pc; } +NOKPROBE_SYMBOL(emulate_update_regs); /* * Emulate a previously-analysed load or store instruction. |