eal: add function to release internal resources

[dpdk.git] / lib / librte_eal / linuxapp / eal / eal_debug.c

diff --git a/lib/librte_eal/linuxapp/eal/eal_debug.c b/lib/librte_eal/linuxapp/eal/eal_debug.c
index c05341d..5d92500 100644 (file)
--- a/lib/librte_eal/linuxapp/eal/eal_debug.c
+++ b/lib/librte_eal/linuxapp/eal/eal_debug.c
@@ -1,39 +1,10 @@
-/*-
- *   BSD LICENSE
- * 
- *   Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
- *   All rights reserved.
- * 
- *   Redistribution and use in source and binary forms, with or without 
- *   modification, are permitted provided that the following conditions 
- *   are met:
- * 
- *     * Redistributions of source code must retain the above copyright 
- *       notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above copyright 
- *       notice, this list of conditions and the following disclaimer in 
- *       the documentation and/or other materials provided with the 
- *       distribution.
- *     * Neither the name of Intel Corporation nor the names of its 
- *       contributors may be used to endorse or promote products derived 
- *       from this software without specific prior written permission.
- * 
- *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
- *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
- *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
- *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
- *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
- *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
- *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
- *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
- *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
- *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
- *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
- *  version: DPDK.L.1.2.3-3
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
  */
 
+#ifdef RTE_BACKTRACE
 #include <execinfo.h>
+#endif
 #include <stdarg.h>
 #include <signal.h>
 #include <stdlib.h>
@@ -43,23 +14,32 @@
 #include <rte_log.h>
 #include <rte_debug.h>
 #include <rte_common.h>
+#include <rte_eal.h>
 
 #define BACKTRACE_SIZE 256
 
 /* dump the stack of the calling core */
 void rte_dump_stack(void)
 {
+#ifdef RTE_BACKTRACE
        void *func[BACKTRACE_SIZE];
        char **symb = NULL;
        int size;
 
        size = backtrace(func, BACKTRACE_SIZE);
        symb = backtrace_symbols(func, size);
+
+       if (symb == NULL)
+               return;
+
        while (size > 0) {
                rte_log(RTE_LOG_ERR, RTE_LOGTYPE_EAL,
                        "%d: [%s]\n", size, symb[size - 1]);
                size --;
        }
+
+       free(symb);
+#endif /* RTE_BACKTRACE */
 }
 
 /* not implemented in this environment */
@@ -73,9 +53,6 @@ void __rte_panic(const char *funcname, const char *format, ...)
 {
        va_list ap;
 
-       /* disable history */
-       rte_log_set_history(0);
-
        rte_log(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, "PANIC in %s():\n", funcname);
        va_start(ap, format);
        rte_vlog(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, format, ap);
@@ -94,17 +71,18 @@ rte_exit(int exit_code, const char *format, ...)
 {
        va_list ap;
 
-       /* disable history */
-       rte_log_set_history(0);
-
        if (exit_code != 0)
-               RTE_LOG(CRIT, EAL, "Error - exiting with code: %d\nCause: ", exit_code);
+               RTE_LOG(CRIT, EAL, "Error - exiting with code: %d\n"
+                               "  Cause: ", exit_code);
 
        va_start(ap, format);
        rte_vlog(RTE_LOG_CRIT, RTE_LOGTYPE_EAL, format, ap);
        va_end(ap);
 
 #ifndef RTE_EAL_ALWAYS_PANIC_ON_ERROR
+       if (rte_eal_cleanup() != 0)
+               RTE_LOG(CRIT, EAL,
+                       "EAL could not release all resources\n");
        exit(exit_code);
 #else
        rte_dump_stack();