Imported Upstream version 16.04

[deb_dpdk.git] / lib / librte_eal / bsdapp / eal / eal_debug.c

diff --git a/lib/librte_eal/bsdapp/eal/eal_debug.c b/lib/librte_eal/bsdapp/eal/eal_debug.c
new file mode 100644 (file)
index 0000000..907fbfa
--- /dev/null
+++ b/lib/librte_eal/bsdapp/eal/eal_debug.c
@@ -0,0 +1,119 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright(c) 2010-2014 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.
+ */
+
+#include <execinfo.h>
+#include <stdarg.h>
+#include <signal.h>
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdint.h>
+
+#include <rte_log.h>
+#include <rte_debug.h>
+#include <rte_common.h>
+
+#define BACKTRACE_SIZE 256
+
+/* dump the stack of the calling core */
+void rte_dump_stack(void)
+{
+       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);
+}
+
+/* not implemented in this environment */
+void rte_dump_registers(void)
+{
+       return;
+}
+
+/* call abort(), it will generate a coredump if enabled */
+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);
+       va_end(ap);
+       rte_dump_stack();
+       rte_dump_registers();
+       abort();
+}
+
+/*
+ * Like rte_panic this terminates the application. However, no traceback is
+ * provided and no core-dump is generated.
+ */
+void
+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\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
+       exit(exit_code);
+#else
+       rte_dump_stack();
+       rte_dump_registers();
+       abort();
+#endif
+}