diff options
Diffstat (limited to 'arch/powerpc/kernel/uprobes.c')
| -rw-r--r-- | arch/powerpc/kernel/uprobes.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/uprobes.c b/arch/powerpc/kernel/uprobes.c index e8a63713e655..186f69b11e94 100644 --- a/arch/powerpc/kernel/uprobes.c +++ b/arch/powerpc/kernel/uprobes.c @@ -41,6 +41,13 @@ int arch_uprobe_analyze_insn(struct arch_uprobe *auprobe, if (addr & 0x03) return -EINVAL; + if (cpu_has_feature(CPU_FTR_ARCH_31) && + ppc_inst_prefixed(auprobe->insn) && + (addr & 0x3f) == 60) { + pr_info_ratelimited("Cannot register a uprobe on 64 byte unaligned prefixed instruction\n"); + return -EINVAL; + } + return 0; } |