X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttng-kernel.h;h=29731748501aee899240b27b2976f218e26b1bf3;hp=142de0706ef670bdbcd7680961333adcb2da37d5;hb=f05b5f07dd61554a2fcdc5a09d4d80cadf478a51;hpb=9bda164defe0c7ef5857d4ef59cc3b464f5a5404 diff --git a/include/lttng-kernel.h b/include/lttng-kernel.h index 142de0706..297317485 100644 --- a/include/lttng-kernel.h +++ b/include/lttng-kernel.h @@ -23,24 +23,47 @@ #include "lttng-share.h" +#define LTTNG_SYM_NAME_LEN 128 + +enum lttng_kernel_instrumentation { + LTTNG_KERNEL_TRACEPOINT = 0, + LTTNG_KERNEL_KPROBE = 1, + LTTNG_KERNEL_FUNCTION = 2, +}; + +/* + * LTTng consumer mode + */ +enum lttng_kernel_output { + LTTNG_KERNEL_SPLICE = 0, + LTTNG_KERNEL_MMAP = 1, +}; + /* * LTTng DebugFS ABI structures. + * + * This is the kernel ABI copied from lttng-modules tree. */ -enum lttng_instrum_type { - INSTRUM_TRACEPOINTS, + +/* Function tracer */ +struct lttng_kernel_function_attr { + char symbol_name[LTTNG_SYM_NAME_LEN]; }; -struct lttng_channel { - int overwrite; /* 1: overwrite, 0: discard */ - u64 subbuf_size; - u64 num_subbuf; - unsigned int switch_timer_interval; - unsigned int read_timer_interval; +struct lttng_kernel_event { + char name[LTTNG_SYM_NAME_LEN]; + enum lttng_kernel_instrumentation instrumentation; + /* Per instrumentation type configuration */ + union { + struct lttng_kernel_kprobe_attr kprobe; + struct lttng_kernel_function_attr ftrace; + } u; }; -struct lttng_event { - enum lttng_instrum_type itype; - char name[]; +struct lttng_kernel_tracer_version { + uint32_t version; + uint32_t patchlevel; + uint32_t sublevel; }; #endif /* _LTTNG_KERNEL_H */