| From | Ard Biesheuvel <> | Date | Mon, 21 Oct 2019 08:21:48 +0200 | Subject | Re: [PATCH 16/18] arm64: kprobes: fix kprobes without CONFIG_KRETPROBES |
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On Fri, 18 Oct 2019 at 18:11, Sami Tolvanen <samitolvanen@google.com> wrote: > > This allows CONFIG_KRETPROBES to be disabled without disabling > kprobes entirely. > > Signed-off-by: Sami Tolvanen <samitolvanen@google.com>
Can we make kretprobes work with the shadow call stack instead?
> --- > arch/arm64/kernel/probes/kprobes.c | 2 ++ > 1 file changed, 2 insertions(+) > > diff --git a/arch/arm64/kernel/probes/kprobes.c b/arch/arm64/kernel/probes/kprobes.c > index c4452827419b..98230ae979ca 100644 > --- a/arch/arm64/kernel/probes/kprobes.c > +++ b/arch/arm64/kernel/probes/kprobes.c > @@ -551,6 +551,7 @@ void __kprobes __used *trampoline_probe_handler(struct pt_regs *regs) > return (void *)orig_ret_address; > } > > +#ifdef CONFIG_KRETPROBES > void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, > struct pt_regs *regs) > { > @@ -564,6 +565,7 @@ int __kprobes arch_trampoline_kprobe(struct kprobe *p) > { > return 0; > } > +#endif > > int __init arch_init_kprobes(void) > { > -- > 2.23.0.866.gb869b98d4c-goog >
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