X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=lttng-events.h;h=50e33b2d88e5f7427658f376ec3d22e1e5f728a1;hb=refs%2Fheads%2Fns-phase-1;hp=8dd9241d4cc5d1b77e5fc6b472db4f1aa44deb24;hpb=3834b99f4341209754c4955ec853dc250b33ed4b;p=deliverable%2Flttng-modules.git diff --git a/lttng-events.h b/lttng-events.h index 8dd9241d..50e33b2d 100644 --- a/lttng-events.h +++ b/lttng-events.h @@ -1,34 +1,22 @@ -#ifndef _LTTNG_EVENTS_H -#define _LTTNG_EVENTS_H - -/* +/* SPDX-License-Identifier: (GPL-2.0 or LGPL-2.1) + * * lttng-events.h * * Holds LTTng per-session event registry. * * Copyright (C) 2010-2012 Mathieu Desnoyers - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; only - * version 2.1 of the License. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ +#ifndef _LTTNG_EVENTS_H +#define _LTTNG_EVENTS_H + #include #include #include #include #include -#include +#include +#include #include #include #include @@ -206,6 +194,9 @@ struct lttng_probe_ctx { struct lttng_ctx_field { struct lttng_event_field event_field; size_t (*get_size)(size_t offset); + size_t (*get_size_arg)(size_t offset, struct lttng_ctx_field *field, + struct lib_ring_buffer_ctx *ctx, + struct lttng_channel *chan); void (*record)(struct lttng_ctx_field *field, struct lib_ring_buffer_ctx *ctx, struct lttng_channel *chan); @@ -216,6 +207,12 @@ struct lttng_ctx_field { struct lttng_perf_counter_field *perf_counter; } u; void (*destroy)(struct lttng_ctx_field *field); + /* + * Private data to keep state between get_size and record. + * User must perform its own synchronization to protect against + * concurrent and reentrant contexts. + */ + void *priv; }; struct lttng_ctx { @@ -288,6 +285,13 @@ struct lttng_enabler_ref { struct lttng_enabler *ref; /* backward ref */ }; +struct lttng_uprobe_handler { + struct lttng_event *event; + loff_t offset; + struct uprobe_consumer up_consumer; + struct list_head node; +}; + /* * lttng_event structure is referred to by the tracing fast path. It must be * kept small. @@ -313,6 +317,10 @@ struct lttng_event { struct { char *symbol_name; } ftrace; + struct { + struct inode *inode; + struct list_head head; + } uprobe; } u; struct list_head list; /* Event list in session */ unsigned int metadata_dumped:1; @@ -705,7 +713,101 @@ int lttng_add_migratable_to_ctx(struct lttng_ctx **ctx) return -ENOSYS; } #endif -#if defined(CONFIG_PERF_EVENTS) && (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,33)) + +int lttng_add_callstack_to_ctx(struct lttng_ctx **ctx, int type); + +#if defined(CONFIG_CGROUPS) && \ + ((LINUX_VERSION_CODE >= KERNEL_VERSION(4,6,0)) || \ + LTTNG_UBUNTU_KERNEL_RANGE(4,4,0,0, 4,5,0,0)) +int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_cgroup_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if defined(CONFIG_IPC_NS) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_ipc_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if !defined(LTTNG_MNT_NS_MISSING_HEADER) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_mnt_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if defined(CONFIG_NET_NS) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_net_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if defined(CONFIG_PID_NS) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_pid_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if defined(CONFIG_USER_NS) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_user_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +#if defined(CONFIG_UTS_NS) && \ + (LINUX_VERSION_CODE >= KERNEL_VERSION(3,8,0)) +int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx); +#else +static inline +int lttng_add_uts_ns_to_ctx(struct lttng_ctx **ctx) +{ + return -ENOSYS; +} +#endif + +int lttng_add_uid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_euid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_suid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_gid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_egid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_sgid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_vuid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_veuid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_vsuid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_vgid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_vegid_to_ctx(struct lttng_ctx **ctx); +int lttng_add_vsgid_to_ctx(struct lttng_ctx **ctx); + +#if defined(CONFIG_PERF_EVENTS) int lttng_add_perf_counter_to_ctx(uint32_t type, uint64_t config, const char *name, @@ -772,6 +874,42 @@ void lttng_kprobes_destroy_private(struct lttng_event *event) } #endif +int lttng_event_add_callsite(struct lttng_event *event, + struct lttng_kernel_event_callsite *callsite); + +#ifdef CONFIG_UPROBES +int lttng_uprobes_register(const char *name, + int fd, struct lttng_event *event); +int lttng_uprobes_add_callsite(struct lttng_event *event, + struct lttng_kernel_event_callsite *callsite); +void lttng_uprobes_unregister(struct lttng_event *event); +void lttng_uprobes_destroy_private(struct lttng_event *event); +#else +static inline +int lttng_uprobes_register(const char *name, + int fd, struct lttng_event *event) +{ + return -ENOSYS; +} + +static inline +int lttng_uprobes_add_callsite(struct lttng_event *event, + struct lttng_kernel_event_callsite *callsite) +{ + return -ENOSYS; +} + +static inline +void lttng_uprobes_unregister(struct lttng_event *event) +{ +} + +static inline +void lttng_uprobes_destroy_private(struct lttng_event *event) +{ +} +#endif + #ifdef CONFIG_KRETPROBES int lttng_kretprobes_register(const char *name, const char *symbol_name, @@ -844,8 +982,6 @@ int lttng_calibrate(struct lttng_kernel_calibrate *calibrate); extern const struct file_operations lttng_tracepoint_list_fops; extern const struct file_operations lttng_syscall_list_fops; -#if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,35)) #define TRACEPOINT_HAS_DATA_ARG -#endif #endif /* _LTTNG_EVENTS_H */