1 files changed, 0 insertions, 76 deletions
diff --git a/qemu/trace/ftrace.c b/qemu/trace/ftrace.c
deleted file mode 100644
index e953922f5..000000000
--- a/qemu/trace/ftrace.c
+++ /dev/null
@@ -1,76 +0,0 @@
-/*
- * Ftrace trace backend
- *
- * Copyright (C) 2013 Hitachi, Ltd.
- * Created by Eiichi Tsukata <eiichi.tsukata.xh@hitachi.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2.  See
- * the COPYING file in the top-level directory.
- *
- */
-
-#include "qemu/osdep.h"
-#include "trace.h"
-#include "trace/control.h"
-
-int trace_marker_fd;
-
-static int find_debugfs(char *debugfs)
-{
-    char type[100];
-    FILE *fp;
-
-    fp = fopen("/proc/mounts", "r");
-    if (fp == NULL) {
-        return 0;
-    }
-
-    while (fscanf(fp, "%*s %" STR(PATH_MAX) "s %99s %*s %*d %*d\n",
-                  debugfs, type) == 2) {
-        if (strcmp(type, "debugfs") == 0) {
-            break;
-        }
-    }
-    fclose(fp);
-
-    if (strcmp(type, "debugfs") != 0) {
-        return 0;
-    }
-    return 1;
-}
-
-bool ftrace_init(void)
-{
-    char debugfs[PATH_MAX];
-    char path[PATH_MAX];
-    int debugfs_found;
-    int trace_fd = -1;
-
-    debugfs_found = find_debugfs(debugfs);
-    if (debugfs_found) {
-        snprintf(path, PATH_MAX, "%s/tracing/tracing_on", debugfs);
-        trace_fd = open(path, O_WRONLY);
-        if (trace_fd < 0) {
-            perror("Could not open ftrace 'tracing_on' file");
-            return false;
-        } else {
-            if (write(trace_fd, "1", 1) < 0) {
-                perror("Could not write to 'tracing_on' file");
-                close(trace_fd);
-                return false;
-            }
-            close(trace_fd);
-        }
-        snprintf(path, PATH_MAX, "%s/tracing/trace_marker", debugfs);
-        trace_marker_fd = open(path, O_WRONLY);
-        if (trace_marker_fd < 0) {
-            perror("Could not open ftrace 'trace_marker' file");
-            return false;
-        }
-    } else {
-        fprintf(stderr, "debugfs is not mounted\n");
-        return false;
-    }
-
-    return true;
-}