X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttng%2Fuserspace-probe.h;h=2d8c6f1257346dc22059d19441532a1ef3b8f962;hp=0168ac2fd7382e903882a2dbd0fbaeaecdfe4012;hb=87597c2c3bbaa1502ad2025cbf16704829f3b464;hpb=1ce46cfe8391e5a9e72553f0886a7a79e9ac64c6 diff --git a/include/lttng/userspace-probe.h b/include/lttng/userspace-probe.h index 0168ac2fd..2d8c6f125 100644 --- a/include/lttng/userspace-probe.h +++ b/include/lttng/userspace-probe.h @@ -32,6 +32,7 @@ enum lttng_userspace_probe_location_lookup_method_type { LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_UNKNOWN = -1, LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_DEFAULT = 0, LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_FUNCTION_ELF = 1, + LTTNG_USERSPACE_PROBE_LOCATION_LOOKUP_METHOD_TYPE_TRACEPOINT_SDT = 2, }; /* @@ -54,6 +55,13 @@ extern void lttng_userspace_probe_location_lookup_method_destroy( extern struct lttng_userspace_probe_location_lookup_method * lttng_userspace_probe_location_lookup_method_function_elf_create(void); +/* + * Create a tracepoint SDT tracepoint lookup method struct. + * Return NULL on failure. + */ +extern struct lttng_userspace_probe_location_lookup_method * +lttng_userspace_probe_location_lookup_method_tracepoint_sdt_create(void); + /* * Contains all the information needed to compute the instrumentation point in @@ -64,6 +72,7 @@ struct lttng_userspace_probe_location; enum lttng_userspace_probe_location_type { LTTNG_USERSPACE_PROBE_LOCATION_TYPE_UNKNOWN = -1, LTTNG_USERSPACE_PROBE_LOCATION_TYPE_FUNCTION = 0, + LTTNG_USERSPACE_PROBE_LOCATION_TYPE_TRACEPOINT = 1, }; /* @@ -104,16 +113,63 @@ extern const char *lttng_userspace_probe_location_function_get_binary_path( extern const char *lttng_userspace_probe_location_function_get_function_name( const struct lttng_userspace_probe_location *location); +/* + * Get the FD to the target binary file to the probe location of the function + * type. + */ +extern int lttng_userspace_probe_location_function_get_binary_fd( + const struct lttng_userspace_probe_location *location); + /* * Get the lookup method of the given userspace probe location. * Returns NULL if the probe location type is unsupported. * * The ownership of the lookup method is NOT transferred to the caller. */ -extern struct lttng_userspace_probe_location_lookup_method * +extern const struct lttng_userspace_probe_location_lookup_method * lttng_userspace_probe_location_get_lookup_method( const struct lttng_userspace_probe_location *location); +/* + * Create a probe location of the tracepoint type. + * Receives the target binary file path, probename and probe provider to + * instrument. + * On failure, NULL is returned. + * + * The ownership of the lookup method is transferred to the created probe + * location. + */ +extern struct lttng_userspace_probe_location * +lttng_userspace_probe_location_tracepoint_create(const char *binary_path, + const char *probe_name, const char *provider_name, + struct lttng_userspace_probe_location_lookup_method *lookup_method); + +/* + * Get the target binary path of the probe location of the tracepoint type. + */ +extern const char *lttng_userspace_probe_location_tracepoint_get_binary_path( + const struct lttng_userspace_probe_location *location); + +/* + * Get the target probe name of the probe location of the tracepoint type. + */ +extern const char *lttng_userspace_probe_location_tracepoint_get_probe_name( + const struct lttng_userspace_probe_location *location); + +/* + * Get the target probe provider name of the probe location of the tracepoint + * type. + */ +extern const char *lttng_userspace_probe_location_tracepoint_get_provider_name( + const struct lttng_userspace_probe_location *location); + +/* + * Get the FD to the target binary file to the probe location of the tracepoint + * type. + */ +extern int lttng_userspace_probe_location_tracepoint_get_binary_fd( + const struct lttng_userspace_probe_location *location); + #ifdef __cplusplus } #endif