[PATCH v4 2/9] powerpc/kprobes: Move kprobes over to patch_instruction
From: Balbir Singh <bsingharora@gmail.com>
Date: 2017-06-27 07:49:24
Subsystem:
linux for powerpc (32-bit and 64-bit), the rest · Maintainers:
Madhavan Srinivasan, Michael Ellerman, Linus Torvalds
arch_arm/disarm_probe use direct assignment for copying instructions, replace them with patch_instruction Signed-off-by: Balbir Singh <bsingharora@gmail.com> --- arch/powerpc/kernel/kprobes.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 01addfb..a52bae8 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c@@ -164,7 +164,7 @@ NOKPROBE_SYMBOL(arch_prepare_kprobe); void arch_arm_kprobe(struct kprobe *p) { - *p->addr = BREAKPOINT_INSTRUCTION; + patch_instruction(p->addr, BREAKPOINT_INSTRUCTION); flush_icache_range((unsigned long) p->addr, (unsigned long) p->addr + sizeof(kprobe_opcode_t)); }
@@ -172,7 +172,7 @@ NOKPROBE_SYMBOL(arch_arm_kprobe); void arch_disarm_kprobe(struct kprobe *p) { - *p->addr = p->opcode; + patch_instruction(p->addr, p->opcode); flush_icache_range((unsigned long) p->addr, (unsigned long) p->addr + sizeof(kprobe_opcode_t)); }
--
2.9.4