diff options
Diffstat (limited to 'kernel/trace/trace.h')
| -rw-r--r-- | kernel/trace/trace.h | 24 |
1 files changed, 23 insertions, 1 deletions
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h index 666f9a2c189d..c2b61bcd912f 100644 --- a/kernel/trace/trace.h +++ b/kernel/trace/trace.h @@ -964,7 +964,8 @@ extern int __trace_graph_entry(struct trace_array *tr, extern int __trace_graph_retaddr_entry(struct trace_array *tr, struct ftrace_graph_ent *trace, unsigned int trace_ctx, - unsigned long retaddr); + unsigned long retaddr, + struct ftrace_regs *fregs); extern void __trace_graph_return(struct trace_array *tr, struct ftrace_graph_ret *trace, unsigned int trace_ctx, @@ -2276,4 +2277,25 @@ static inline int rv_init_interface(void) */ #define FTRACE_TRAMPOLINE_MARKER ((unsigned long) INT_MAX) +/* + * This is used to get the address of the args array based on + * the type of the entry. + */ +#define FGRAPH_ENTRY_ARGS(e) \ + ({ \ + unsigned long *_args; \ + struct ftrace_graph_ent_entry *_e = e; \ + \ + if (IS_ENABLED(CONFIG_FUNCTION_GRAPH_RETADDR) && \ + e->ent.type == TRACE_GRAPH_RETADDR_ENT) { \ + struct fgraph_retaddr_ent_entry *_re; \ + \ + _re = (typeof(_re))_e; \ + _args = _re->args; \ + } else { \ + _args = _e->args; \ + } \ + _args; \ + }) + #endif /* _LINUX_KERNEL_TRACE_H */ |