X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=include%2Flttng%2Fevent-rule%2Fkernel-kprobe.h;fp=include%2Flttng%2Fevent-rule%2Fkernel-kprobe.h;h=95f0002a3dd526959a782890c0179f1e83a6ab7c;hp=0000000000000000000000000000000000000000;hb=85522de5747fee084e2e391678a79918355345da;hpb=46fd07accf36998fca3e43e54513755a98f68f48 diff --git a/include/lttng/event-rule/kernel-kprobe.h b/include/lttng/event-rule/kernel-kprobe.h new file mode 100644 index 000000000..95f0002a3 --- /dev/null +++ b/include/lttng/event-rule/kernel-kprobe.h @@ -0,0 +1,75 @@ +/* + * Copyright (C) 2019 Jonathan Rajotte + * + * SPDX-License-Identifier: LGPL-2.1-only + * + */ + +#ifndef LTTNG_EVENT_RULE_KERNEL_KPROBE_H +#define LTTNG_EVENT_RULE_KERNEL_KPROBE_H + +#include + +#ifdef __cplusplus +extern "C" { +#endif + +struct lttng_kernel_probe_location; + +/* + * Create a newly allocated kernel kprobe event rule. + * + * The location is copied internally. + * + * Returns a new event rule on success, NULL on failure. The returned event rule + * must be destroyed using lttng_event_rule_destroy(). + */ +extern struct lttng_event_rule *lttng_event_rule_kernel_kprobe_create( + const struct lttng_kernel_probe_location *location); + +/* + * Get the kernel probe location of a kernel kprobe event rule. + * + * The caller does not assume the ownership of the returned location. + * The location shall only be used for the duration of the event + * rule's lifetime, or before a different location is set. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's location + * on success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is + * passed, or LTTNG_EVENT_RULE_STATUS_UNSET if a location was not set prior to + * this call. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_kprobe_get_location( + const struct lttng_event_rule *rule, + const struct lttng_kernel_probe_location **location); + +/* + * Set the name of a kernel kprobe event rule. + * + * The name is copied internally. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK on success, LTTNG_EVENT_RULE_STATUS_INVALID + * if invalid parameters are passed. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_kprobe_set_event_name( + struct lttng_event_rule *rule, const char *name); + +/* + * Get the name of a kernel kprobe event rule. + * + * The caller does not assume the ownership of the returned name. + * The name shall only only be used for the duration of the event + * rule's lifetime, or before a different name is set. + * + * Returns LTTNG_EVENT_RULE_STATUS_OK and a pointer to the event rule's name on + * success, LTTNG_EVENT_RULE_STATUS_INVALID if an invalid parameter is passed, + * or LTTNG_EVENT_RULE_STATUS_UNSET if a name was not set prior to this call. + */ +extern enum lttng_event_rule_status lttng_event_rule_kernel_kprobe_get_event_name( + const struct lttng_event_rule *rule, const char **name); + +#ifdef __cplusplus +} +#endif + +#endif /* LTTNG_EVENT_RULE_KERNEL_KPROBE_H */