From: Balbir Singh <bsingharora@gmail.com>
To: linuxppc-dev@lists.ozlabs.org, mpe@ellerman.id.au
Cc: naveen.n.rao@linux.vnet.ibm.com, christophe.leroy@c-s.fr,
paulus@samba.org, Balbir Singh <bsingharora@gmail.com>
Subject: [PATCH v4 2/9] powerpc/kprobes: Move kprobes over to patch_instruction
Date: Tue, 27 Jun 2017 17:48:56 +1000 [thread overview]
Message-ID: <20170627074903.19324-3-bsingharora@gmail.com> (raw)
In-Reply-To: <20170627074903.19324-1-bsingharora@gmail.com>
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
next prev parent reply other threads:[~2017-06-27 7:49 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-06-27 7:48 [PATCH v4 0/9] Provide STRICT_KERNEL_RWX for powerpc Balbir Singh
2017-06-27 7:48 ` [PATCH v4 1/9] powerpc/lib/code-patching: Use alternate map for patch_instruction() Balbir Singh
2017-06-27 8:32 ` Christophe LEROY
2017-06-27 11:19 ` Balbir Singh
2017-06-27 7:48 ` Balbir Singh [this message]
2017-06-27 8:34 ` [PATCH v4 2/9] powerpc/kprobes: Move kprobes over to patch_instruction Christophe LEROY
2017-06-27 7:48 ` [PATCH v4 3/9] powerpc/kprobes/optprobes: Move " Balbir Singh
2017-06-27 8:34 ` Christophe LEROY
2017-06-27 11:13 ` Balbir Singh
2017-06-27 7:48 ` [PATCH v4 4/9] powerpc/xmon: Add patch_instruction() support for xmon Balbir Singh
2017-06-27 7:48 ` [PATCH v4 5/9] powerpc/vmlinux.lds: Align __init_begin to 16M Balbir Singh
2017-06-27 7:49 ` [PATCH v4 6/9] powerpc/platform/pseries/lpar: Fix updatepp and updateboltedpp Balbir Singh
2017-06-27 7:49 ` [PATCH v4 7/9] powerpc/mm/hash: Implement mark_rodata_ro() for hash Balbir Singh
2017-06-27 7:49 ` [PATCH v4 8/9] powerpc/mm/radix: Implement mark_rodata_ro() for radix Balbir Singh
2017-06-27 7:49 ` [PATCH v4 9/9] powerpc/Kconfig: Enable STRICT_KERNEL_RWX Balbir Singh
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