Rename "tsc" to "timestamp"

[lttng-modules.git] / lttng-context-procname.c

diff --git a/lttng-context-procname.c b/lttng-context-procname.c
deleted file mode 100644 (file)
index fb5c36b..0000000
--- a/lttng-context-procname.c
+++ /dev/null
@@ -1,77 +0,0 @@
-/* SPDX-License-Identifier: (GPL-2.0-only or LGPL-2.1-only)
- *
- * lttng-context-procname.c
- *
- * LTTng procname context.
- *
- * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- */
-
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/sched.h>
-#include <lttng/events.h>
-#include <ringbuffer/frontend_types.h>
-#include <wrapper/vmalloc.h>
-#include <lttng/tracer.h>
-#include <lttng/endian.h>
-
-static
-size_t procname_get_size(size_t offset)
-{
-       size_t size = 0;
-
-       size += sizeof(current->comm);
-       return size;
-}
-
-/*
- * Racy read of procname. We simply copy its whole array size.
- * Races with /proc/<task>/procname write only.
- * Otherwise having to take a mutex for each event is cumbersome and
- * could lead to crash in IRQ context and deadlock of the lockdep tracer.
- */
-static
-void procname_record(struct lttng_ctx_field *field,
-                struct lib_ring_buffer_ctx *ctx,
-                struct lttng_channel *chan)
-{
-       chan->ops->event_write(ctx, current->comm, sizeof(current->comm));
-}
-
-static
-void procname_get_value(struct lttng_ctx_field *field,
-               struct lttng_probe_ctx *lttng_probe_ctx,
-               union lttng_ctx_value *value)
-{
-       value->str = current->comm;
-}
-
-static const struct lttng_type procname_array_elem_type =
-       __type_integer(char, 0, 0, -1, __BYTE_ORDER, 10, UTF8);
-
-int lttng_add_procname_to_ctx(struct lttng_ctx **ctx)
-{
-       struct lttng_ctx_field *field;
-
-       field = lttng_append_context(ctx);
-       if (!field)
-               return -ENOMEM;
-       if (lttng_find_context(*ctx, "procname")) {
-               lttng_remove_context_field(ctx, field);
-               return -EEXIST;
-       }
-       field->event_field.name = "procname";
-       field->event_field.type.atype = atype_array_nestable;
-       field->event_field.type.u.array_nestable.elem_type = &procname_array_elem_type;
-       field->event_field.type.u.array_nestable.length = sizeof(current->comm);
-       field->event_field.type.u.array_nestable.alignment = 0;
-
-       field->get_size = procname_get_size;
-       field->record = procname_record;
-       field->get_value = procname_get_value;
-       lttng_context_update(*ctx);
-       wrapper_vmalloc_sync_mappings();
-       return 0;
-}
-EXPORT_SYMBOL_GPL(lttng_add_procname_to_ctx);