1 files changed, 0 insertions, 97 deletions
diff --git a/core/host/stack_trace.c b/core/host/stack_trace.c
deleted file mode 100644
index adef66dd44..0000000000
--- a/core/host/stack_trace.c
+++ /dev/null
@@ -1,97 +0,0 @@
-/* Copyright 2014 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#include <execinfo.h>
-#include <signal.h>
-#include <stdio.h>
-#include <stdlib.h>
-
-#include "host_task.h"
-#include "host_test.h"
-#include "timer.h"
-
-#define SIGNAL_TRACE_DUMP SIGTERM
-#define MAX_TRACE 30
-/*
- * When trace dump is requested from signal handler, skip:
- *   _task_dump_trace_impl
- *   _task_dump_trace_dispath
- *   A function in libc
- */
-#define SIGNAL_TRACE_OFFSET 3
-/*
- * When trace dump is requested from task_dump_trace(), skip:
- *   task_dump_trace
- *   _task_dump_trace_impl
- */
-#define DIRECT_TRACE_OFFSET 2
-
-static pthread_t main_thread;
-
-static void __attribute__((noinline)) _task_dump_trace_impl(int offset)
-{
-	void *trace[MAX_TRACE];
-	size_t sz;
-	char **messages;
-	char buf[256];
-	FILE *file;
-	int i, nb;
-
-	sz = backtrace(trace, MAX_TRACE);
-	messages = backtrace_symbols(trace + offset, sz - offset);
-
-	for (i = 0; i < sz - offset; ++i) {
-		fprintf(stderr, "#%-2d %s\n", i, messages[i]);
-		/* %p is correct (as opposed to %pP) since this is the host */
-		sprintf(buf, "addr2line %p -e %s",
-			trace[i + offset], __get_prog_name());
-		file = popen(buf, "r");
-		if (file) {
-			nb = fread(buf, 1, sizeof(buf) - 1, file);
-			buf[nb] = '\0';
-			fprintf(stderr, "    %s", buf);
-			pclose(file);
-		}
-	}
-	fflush(stderr);
-	free(messages);
-}
-
-void __attribute__((noinline)) task_dump_trace(void)
-{
-	_task_dump_trace_impl(DIRECT_TRACE_OFFSET);
-}
-
-static void __attribute__((noinline)) _task_dump_trace_dispatch(int sig)
-{
-	int need_dispatch = 1;
-	task_id_t running = task_get_running();
-
-	if (!pthread_equal(pthread_self(), main_thread)) {
-		need_dispatch = 0;
-	} else if (!task_start_called()) {
-		fprintf(stderr, "Stack trace of main thread:\n");
-		need_dispatch = 0;
-	} else if (in_interrupt_context()) {
-		fprintf(stderr, "Stack trace of ISR:\n");
-	} else {
-		fprintf(stderr, "Stack trace of task %d (%s):\n",
-				running, task_get_name(running));
-	}
-
-	if (need_dispatch) {
-		pthread_kill(task_get_thread(running), SIGNAL_TRACE_DUMP);
-	} else {
-		_task_dump_trace_impl(SIGNAL_TRACE_OFFSET);
-		exit(1);
-	}
-}
-
-void task_register_tracedump(void)
-{
-	/* Trace dumper MUST be registered from main thread */
-	main_thread = pthread_self();
-	signal(SIGNAL_TRACE_DUMP, _task_dump_trace_dispatch);
-}