Pass the original kprobe for preparing an optimized kprobe arch-dep part, since for some architecture (e.g. ARM32) requires the information in original kprobe.
Signed-off-by: Masami Hiramatsu <masami.hiramatsu...@hitachi.com> Cc: Wang Nan <wangn...@huawei.com> --- arch/x86/kernel/kprobes/opt.c | 3 ++- include/linux/kprobes.h | 3 ++- kernel/kprobes.c | 4 ++-- 3 files changed, 6 insertions(+), 4 deletions(-) diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c index 7c523bb..0dd8d08 100644 --- a/arch/x86/kernel/kprobes/opt.c +++ b/arch/x86/kernel/kprobes/opt.c @@ -322,7 +322,8 @@ void arch_remove_optimized_kprobe(struct optimized_kprobe *op) * Target instructions MUST be relocatable (checked inside) * This is called when new aggr(opt)probe is allocated or reused. */ -int arch_prepare_optimized_kprobe(struct optimized_kprobe *op) +int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, + struct kprobe *__unused) { u8 *buf; int ret; diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index f7296e5..7ab2c93 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -308,7 +308,8 @@ struct optimized_kprobe { /* Architecture dependent functions for direct jump optimization */ extern int arch_prepared_optinsn(struct arch_optimized_insn *optinsn); extern int arch_check_optimized_kprobe(struct optimized_kprobe *op); -extern int arch_prepare_optimized_kprobe(struct optimized_kprobe *op); +extern int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, + struct kprobe *orig); extern void arch_remove_optimized_kprobe(struct optimized_kprobe *op); extern void arch_optimize_kprobes(struct list_head *oplist); extern void arch_unoptimize_kprobes(struct list_head *oplist, diff --git a/kernel/kprobes.c b/kernel/kprobes.c index 3995f54..9f28aa7 100644 --- a/kernel/kprobes.c +++ b/kernel/kprobes.c @@ -717,7 +717,7 @@ static void prepare_optimized_kprobe(struct kprobe *p) struct optimized_kprobe *op; op = container_of(p, struct optimized_kprobe, kp); - arch_prepare_optimized_kprobe(op); + arch_prepare_optimized_kprobe(op, p); } /* Allocate new optimized_kprobe and try to prepare optimized instructions */ @@ -731,7 +731,7 @@ static struct kprobe *alloc_aggr_kprobe(struct kprobe *p) INIT_LIST_HEAD(&op->list); op->kp.addr = p->addr; - arch_prepare_optimized_kprobe(op); + arch_prepare_optimized_kprobe(op, p); return &op->kp; } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/