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 ce673764cb69..74a176e394ef 100644 --- a/arch/powerpc/kernel/trace/ftrace.c +++ b/arch/powerpc/kernel/trace/ftrace.c @@ -917,6 +917,9 @@ static int ftrace_modify_ftrace_graph_caller(bool enable) unsigned long stub = (unsigned long)(&ftrace_graph_stub); ppc_inst_t old, new; + if (IS_ENABLED(CONFIG_DYNAMIC_FTRACE_WITH_ARGS)) + return 0; + old = ftrace_call_replace(ip, enable ? stub : addr, 0); new = ftrace_call_replace(ip, enable ? addr : stub, 0); @@ -955,6 +958,14 @@ unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip, out: return parent; } + +#ifdef CONFIG_DYNAMIC_FTRACE_WITH_ARGS +void ftrace_graph_func(unsigned long ip, unsigned long parent_ip, + struct ftrace_ops *op, struct ftrace_regs *fregs) +{ + fregs->regs.link = prepare_ftrace_return(parent_ip, ip, fregs->regs.gpr[1]); +} +#endif #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #ifdef PPC64_ELF_ABI_v1 |