From 88826356365754fc269ed63a0f7f4f418b617074 Mon Sep 17 00:00:00 2001 From: Sebastian Huber Date: Tue, 10 Nov 2020 12:02:34 +0100 Subject: libtest: Add primitive test case memory allocator This primitive test case memory allocator uses memory from the low-level memory information provided by the BSP. At the beginning of each test case, the memory available to the test case is reinitialized. This allows the use of a simple allocate only allocator. --- cpukit/libtest/t-test-rtems-memory.c | 86 ++++++++++++++++++++++++++++++++++++ 1 file changed, 86 insertions(+) create mode 100644 cpukit/libtest/t-test-rtems-memory.c (limited to 'cpukit/libtest') diff --git a/cpukit/libtest/t-test-rtems-memory.c b/cpukit/libtest/t-test-rtems-memory.c new file mode 100644 index 0000000000..92d21a7ccd --- /dev/null +++ b/cpukit/libtest/t-test-rtems-memory.c @@ -0,0 +1,86 @@ +/* SPDX-License-Identifier: BSD-2-Clause */ + +/* + * Copyright (C) 2020 embedded brains GmbH + * + * 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. + */ + +#include + +#include +#include + +static Memory_Area T_memory_areas[1]; + +static Memory_Information T_memory_information = + MEMORY_INFORMATION_INITIALIZER(T_memory_areas); + +static void +T_memory_initialize(void) +{ + const Memory_Information *mem; + Memory_Area *area; + void *begin; + uintptr_t size; + + mem = _Memory_Get(); + area = _Memory_Get_area(mem, 0); + begin = _Memory_Get_free_begin(area); + size = _Memory_Get_free_size(area) / 2; + _Memory_Consume(area, size); + _Memory_Initialize_by_size(&T_memory_areas[0], begin, size); +} + +RTEMS_SYSINIT_ITEM(T_memory_initialize, RTEMS_SYSINIT_WORKSPACE, + RTEMS_SYSINIT_ORDER_FIRST); + +void * +T_memory_allocate(size_t size) +{ + return _Memory_Allocate(&T_memory_information, size, + CPU_HEAP_ALIGNMENT); +} + +void +T_memory_deallocate(void *ptr) +{ + (void)ptr; +} + +void +T_memory_action(T_event event, const char *name) +{ + Memory_Area *area; + + (void)name; + + switch (event) { + case T_EVENT_CASE_BEGIN: + area = &T_memory_areas[0]; + _Memory_Set_free_begin(area, + RTEMS_DECONST(void *, _Memory_Get_begin(area))); + break; + default: + break; + }; +} -- cgit v1.2.3