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authorKinsey Moore <kinsey.moore@oarcorp.com>2021-04-06 09:02:20 -0500
committerJoel Sherrill <joel@rtems.org>2021-10-29 12:40:56 -0500
commit4812a8b572637830d58335cdcc6b200f86e9d435 (patch)
treeb5696f17f09c85a63088bdd1d36b8bf8d87a05f5 /cpukit/include
parent3fc641abcaa71077b659a7c9cdc21106b0d33fd9 (diff)
downloadrtems-4812a8b572637830d58335cdcc6b200f86e9d435.tar.bz2
cpukit: Add signal mapping support
This adds a confdef option allowing an application to request mapping machine exceptions to POSIX signals. This is required for some languages such as Ada.
Diffstat (limited to 'cpukit/include')
-rw-r--r--cpukit/include/rtems/confdefs/extensions.h7
-rw-r--r--cpukit/include/rtems/score/exception.h71
2 files changed, 78 insertions, 0 deletions
diff --git a/cpukit/include/rtems/confdefs/extensions.h b/cpukit/include/rtems/confdefs/extensions.h
index 83d690d50a..6492407934 100644
--- a/cpukit/include/rtems/confdefs/extensions.h
+++ b/cpukit/include/rtems/confdefs/extensions.h
@@ -93,6 +93,10 @@
#include <rtems/stackchk.h>
#endif
+#ifdef CONFIGURE_EXCEPTION_TO_SIGNAL_MAPPING
+ #include <rtems/score/exception.h>
+#endif
+
#ifdef __cplusplus
extern "C" {
#endif
@@ -103,6 +107,9 @@ extern "C" {
|| defined(CONFIGURE_INITIAL_EXTENSIONS) \
|| defined(BSP_INITIAL_EXTENSION)
const User_extensions_Table _User_extensions_Initial_extensions[] = {
+ #ifdef CONFIGURE_EXCEPTION_TO_SIGNAL_MAPPING
+ { .fatal = _Exception_Raise_signal },
+ #endif
#ifdef _CONFIGURE_RECORD_NEED_EXTENSION
{
#ifdef CONFIGURE_RECORD_EXTENSIONS_ENABLED
diff --git a/cpukit/include/rtems/score/exception.h b/cpukit/include/rtems/score/exception.h
new file mode 100644
index 0000000000..979a5aae7e
--- /dev/null
+++ b/cpukit/include/rtems/score/exception.h
@@ -0,0 +1,71 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSScoreException
+ *
+ * @brief This header file provides the interfaces for mapping
+ * exceptions to signsls.
+ */
+
+/*
+ * Copyright (C) 2021 On-Line Applications Research Corporation (OAR)
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. 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.
+ *
+ * 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.
+ */
+
+#ifndef _RTEMS_EXCEPTION_H
+#define _RTEMS_EXCEPTION_H
+
+#include <rtems/fatal.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * @defgroup RTEMSScoreException Exception Mapping Interfaces
+ *
+ * @ingroup RTEMSScore
+ *
+ * @brief This group contains the interfaces for mapping machine exceptions to
+ * signals using the fatal error handler.
+ */
+
+/**
+ * @brief Handle an exception frame for the purpose of mapping signals
+ *
+ * See CONFIGURE_EXCEPTION_TO_SIGNAL_MAPPING documentation in the
+ * "RTEMS Classic API Guide".
+ */
+void _Exception_Raise_signal(
+ Internal_errors_Source source,
+ bool always_set_to_false,
+ Internal_errors_t code
+);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTEMS_EXCEPTION_H */