X-Git-Url: http://git.liburcu.org/?a=blobdiff_plain;f=liblttng-ust%2Flttng-context-procname.c;h=c6d02cf60d3b0692dd449e5f12f08a32b08307bf;hb=HEAD;hp=b6e69501d81c08bc79c5f82d9ff5b85d1d22230a;hpb=3fbec7dc3645facd9e809cf161ba3435a377ce56;p=lttng-ust.git

diff --git a/liblttng-ust/lttng-context-procname.c b/liblttng-ust/lttng-context-procname.c
deleted file mode 100644
index b6e69501..00000000
--- a/liblttng-ust/lttng-context-procname.c
+++ /dev/null
@@ -1,122 +0,0 @@
-/*
- * lttng-context-procname.c
- *
- * LTTng UST procname context.
- *
- * Copyright (C) 2009-2012 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- *
- * 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
- */
-
-#define _LGPL_SOURCE
-#include <lttng/ust-events.h>
-#include <lttng/ust-tracer.h>
-#include <lttng/ringbuffer-config.h>
-#include <urcu/tls-compat.h>
-#include <assert.h>
-#include "compat.h"
-
-/*
- * We cache the result to ensure we don't trigger a system call for
- * each event.
- * Upon exec, procname changes, but exec takes care of throwing away
- * this cached version.
- * The procname can also change by calling prctl(). The procname should
- * be set for a thread before the first event is logged within this
- * thread.
- */
-typedef char procname_array[17];
-static DEFINE_URCU_TLS(procname_array, cached_procname);
-
-static inline
-char *wrapper_getprocname(void)
-{
-	if (caa_unlikely(!URCU_TLS(cached_procname)[0])) {
-		lttng_ust_getprocname(URCU_TLS(cached_procname));
-		URCU_TLS(cached_procname)[LTTNG_UST_PROCNAME_LEN - 1] = '\0';
-	}
-	return URCU_TLS(cached_procname);
-}
-
-void lttng_context_procname_reset(void)
-{
-	URCU_TLS(cached_procname)[0] = '\0';
-}
-
-static
-size_t procname_get_size(struct lttng_ctx_field *field, size_t offset)
-{
-	size_t size = 0;
-
-	size += LTTNG_UST_PROCNAME_LEN;
-	return size;
-}
-
-static
-void procname_record(struct lttng_ctx_field *field,
-		 struct lttng_ust_lib_ring_buffer_ctx *ctx,
-		 struct lttng_channel *chan)
-{
-	char *procname;
-
-	procname = wrapper_getprocname();
-	chan->ops->event_write(ctx, procname, LTTNG_UST_PROCNAME_LEN);
-}
-
-static
-void procname_get_value(struct lttng_ctx_field *field,
-		struct lttng_ctx_value *value)
-{
-	char *procname;
-
-	procname = wrapper_getprocname();
-	value->u.str = procname;
-}
-
-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;
-	field->event_field.type.u.array.elem_type.atype = atype_integer;
-	field->event_field.type.u.array.elem_type.u.basic.integer.size = sizeof(char) * CHAR_BIT;
-	field->event_field.type.u.array.elem_type.u.basic.integer.alignment = lttng_alignof(char) * CHAR_BIT;
-	field->event_field.type.u.array.elem_type.u.basic.integer.signedness = lttng_is_signed_type(char);
-	field->event_field.type.u.array.elem_type.u.basic.integer.reverse_byte_order = 0;
-	field->event_field.type.u.array.elem_type.u.basic.integer.base = 10;
-	field->event_field.type.u.array.elem_type.u.basic.integer.encoding = lttng_encode_UTF8;
-	field->event_field.type.u.array.length = LTTNG_UST_PROCNAME_LEN;
-	field->get_size = procname_get_size;
-	field->record = procname_record;
-	field->get_value = procname_get_value;
-	lttng_context_update(*ctx);
-	return 0;
-}
-
-/*
- * Force a read (imply TLS fixup for dlopen) of TLS variables.
- */
-void lttng_fixup_procname_tls(void)
-{
-	asm volatile ("" : : "m" (URCU_TLS(cached_procname)[0]));
-}