diff options
Diffstat (limited to 'arch/powerpc/kernel/trace/ftrace.c')
| -rw-r--r-- | arch/powerpc/kernel/trace/ftrace.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/trace/ftrace.c b/arch/powerpc/kernel/trace/ftrace.c index 9090d1a21600..051f3db14606 100644 --- a/arch/powerpc/kernel/trace/ftrace.c +++ b/arch/powerpc/kernel/trace/ftrace.c @@ -150,6 +150,17 @@ static int ftrace_get_call_inst(struct dyn_ftrace *rec, unsigned long addr, ppc_ else ip = rec->ip; + if (!is_offset_in_branch_range(addr - ip) && addr != FTRACE_ADDR && + addr != FTRACE_REGS_ADDR) { + /* This can only happen with ftrace direct */ + if (!IS_ENABLED(CONFIG_DYNAMIC_FTRACE_WITH_DIRECT_CALLS)) { + pr_err("0x%lx (0x%lx): Unexpected target address 0x%lx\n", + ip, rec->ip, addr); + return -EINVAL; + } + addr = FTRACE_ADDR; + } + if (is_offset_in_branch_range(addr - ip)) /* Within range */ stub = addr; |