diff options
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/rseq_entry.h | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/rseq_entry.h b/include/linux/rseq_entry.h index ce30e87ce1f5..5be507a127eb 100644 --- a/include/linux/rseq_entry.h +++ b/include/linux/rseq_entry.h @@ -5,6 +5,34 @@ #ifdef CONFIG_RSEQ #include <linux/rseq.h> +#include <linux/tracepoint-defs.h> + +#ifdef CONFIG_TRACEPOINTS +DECLARE_TRACEPOINT(rseq_update); +DECLARE_TRACEPOINT(rseq_ip_fixup); +void __rseq_trace_update(struct task_struct *t); +void __rseq_trace_ip_fixup(unsigned long ip, unsigned long start_ip, + unsigned long offset, unsigned long abort_ip); + +static inline void rseq_trace_update(struct task_struct *t, struct rseq_ids *ids) +{ + if (tracepoint_enabled(rseq_update) && ids) + __rseq_trace_update(t); +} + +static inline void rseq_trace_ip_fixup(unsigned long ip, unsigned long start_ip, + unsigned long offset, unsigned long abort_ip) +{ + if (tracepoint_enabled(rseq_ip_fixup)) + __rseq_trace_ip_fixup(ip, start_ip, offset, abort_ip); +} + +#else /* CONFIG_TRACEPOINT */ +static inline void rseq_trace_update(struct task_struct *t, struct rseq_ids *ids) { } +static inline void rseq_trace_ip_fixup(unsigned long ip, unsigned long start_ip, + unsigned long offset, unsigned long abort_ip) { } +#endif /* !CONFIG_TRACEPOINT */ + static __always_inline void rseq_note_user_irq_entry(void) { if (IS_ENABLED(CONFIG_GENERIC_IRQ_ENTRY)) |