forked from Imagelibrary/rtems
2846b17d7e
Allow the IDLE stack allocator to change the stack size. This can be used by applications with a very dynamic thread-local storage size to adjust the thread storage area of the IDLE tasks dynamically. Update #4524.
123 lines
3.6 KiB
C
123 lines
3.6 KiB
C
/* SPDX-License-Identifier: BSD-2-Clause */
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/*
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* COPYRIGHT (c) 2021.
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* On-Line Applications Research Corporation (OAR).
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <rtems.h>
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#include <tmacros.h>
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#include <rtems/score/percpu.h>
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const char rtems_test_name[] = "SPSTKALLOC 3";
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static int thread_stacks_count = 0xff;
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static rtems_task Init(
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rtems_task_argument ignored
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)
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{
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rtems_print_printer_fprintf_putc(&rtems_test_printer);
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TEST_BEGIN();
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rtems_test_assert(thread_stacks_count == 2);
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TEST_END();
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rtems_test_exit( 0 );
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}
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static uint8_t stack_memory[RTEMS_MINIMUM_STACK_SIZE * 4];
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static int stack_offset_next;
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static void *allocate_helper(size_t size)
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{
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size_t next;
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void *alloc;
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next = stack_offset_next + size;
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rtems_test_assert( next < sizeof(stack_memory) );
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alloc = &stack_memory[stack_offset_next];
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stack_offset_next = next;
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return alloc;
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}
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static void thread_stacks_initialize(size_t stack_space_size)
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{
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rtems_test_assert(thread_stacks_count == 0xff);
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thread_stacks_count = 0;
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}
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static void *thread_stacks_allocate(size_t stack_size)
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{
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rtems_test_assert(thread_stacks_count == 1);
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thread_stacks_count++;
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return allocate_helper(stack_size);
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}
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static void thread_stacks_free(void *addr)
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{
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rtems_test_assert(false);
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}
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static void *thread_stacks_allocate_for_idle(
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uint32_t cpu,
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size_t *stack_size
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)
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{
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rtems_test_assert(thread_stacks_count == 0);
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thread_stacks_count++;
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return allocate_helper(*stack_size);
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}
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/*
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* Configure the thread stack allocators to not use the workspace. This should
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* eliminate all uses of the Workspace for most BSPs.
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*/
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#define CONFIGURE_TASK_STACK_ALLOCATOR_AVOIDS_WORK_SPACE
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#define CONFIGURE_TASK_STACK_ALLOCATOR_INIT thread_stacks_initialize
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#define CONFIGURE_TASK_STACK_ALLOCATOR thread_stacks_allocate
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#define CONFIGURE_TASK_STACK_DEALLOCATOR thread_stacks_free
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#define CONFIGURE_TASK_STACK_ALLOCATOR_FOR_IDLE thread_stacks_allocate_for_idle
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/* NOTICE: the clock driver is explicitly disabled */
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#define CONFIGURE_APPLICATION_DOES_NOT_NEED_CLOCK_DRIVER
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#define CONFIGURE_APPLICATION_NEEDS_SIMPLE_CONSOLE_DRIVER
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#define CONFIGURE_MAXIMUM_TASKS 1
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#define CONFIGURE_RTEMS_INIT_TASKS_TABLE
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#define CONFIGURE_INIT_TASK_ATTRIBUTES RTEMS_FLOATING_POINT
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#define CONFIGURE_INITIAL_EXTENSIONS RTEMS_TEST_INITIAL_EXTENSION
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#define CONFIGURE_INIT
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#include <rtems/confdefs.h>
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