validation: Add MemoryAllocationFailWhen()

Update #3269.

4 files changed, 94 insertions, 1 deletions

diff --git a/spec/build/testsuites/validation/libvalidation.yml b/spec/build/testsuites/validation/libvalidation.yml
index 98dd2e3623..77a36f420b 100644
--- a/spec/build/testsuites/validation/libvalidation.yml
+++ b/spec/build/testsuites/validation/libvalidation.yml
@@ -13,6 +13,7 @@ links: []
 source:
 - testsuites/validation/tx-call-within-isr.c
 - testsuites/validation/tx-interrupt.c
+- testsuites/validation/tx-memory-alloc.c
 - testsuites/validation/tx-support.c
 target: validation
 type: build
diff --git a/spec/build/testsuites/validation/validation-0.yml b/spec/build/testsuites/validation/validation-0.yml
index 6778a5ec25..ddcde4b0f5 100644
--- a/spec/build/testsuites/validation/validation-0.yml
+++ b/spec/build/testsuites/validation/validation-0.yml
@@ -8,7 +8,8 @@ cxxflags: []
 enabled-by: true
 features: c cprogram
 includes: []
-ldflags: []
+ldflags:
+- -Wl,--wrap=rtems_malloc
 links: []
 source:
 - testsuites/validation/tc-barrier-create.c
diff --git a/testsuites/validation/tx-memory-alloc.c b/testsuites/validation/tx-memory-alloc.c
new file mode 100644
index 0000000000..82b79bc558
--- /dev/null
+++ b/testsuites/validation/tx-memory-alloc.c
@@ -0,0 +1,79 @@
+/* SPDX-License-Identifier: BSD-2-Clause */
+
+/**
+ * @file
+ *
+ * @ingroup RTEMSTestSuites
+ *
+ * @brief This source file contains the implementation of
+ *   MemoryAllocationFailWhen() and __wrap_rtems_malloc().
+ */
+
+/*
+ * Copyright (C) 2021 embedded brains GmbH (http://www.embedded-brains.de)
+ *
+ * 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "tx-support.h"
+
+void *__real_rtems_malloc( size_t );
+
+void *__wrap_rtems_malloc( size_t );
+
+static uint32_t fail_when_counter;
+
+void MemoryAllocationFailWhen( uint32_t counter )
+{
+  fail_when_counter = counter;
+}
+
+static bool IsFail( void )
+{
+  uint32_t counter;
+
+  counter = fail_when_counter;
+
+  if ( counter == 1 ) {
+    fail_when_counter = 0;
+    return true;
+  }
+
+  if ( counter > 1 ) {
+    fail_when_counter = counter - 1;
+  }
+
+  return false;
+}
+
+void *__wrap_rtems_malloc( size_t size )
+{
+  if ( IsFail() ) {
+    return NULL;
+  }
+
+  return __real_rtems_malloc( size );
+}
diff --git a/testsuites/validation/tx-support.h b/testsuites/validation/tx-support.h
index 20006f5dd8..0fbb9fdfcd 100644
--- a/testsuites/validation/tx-support.h
+++ b/testsuites/validation/tx-support.h
@@ -101,6 +101,18 @@ void RestoreRunnerMode( void );
 
 void RestoreRunnerPriority( void );
 
+/**
+ * @brief Fails a dynamic memory allocation when the counter reaches zero.
+ *
+ * This function initializes an internal counter which is decremented before
+ * each dynamic memory allocation though the rtems_malloc() directive.  When
+ * the counter decrements from one to zero, the allocation fails and NULL will
+ * be returned.
+ *
+ * @param counter is the initial counter value.
+ */
+void MemoryAllocationFailWhen( uint32_t counter );
+
 typedef struct {
   Chain_Node node;
   void ( *handler )( void * );