mirror of
https://github.com/kelvinlawson/atomthreads.git
synced 2026-01-25 17:23:13 +01:00
792213d66b
- archContextSwitch stores address of new thread's struct reent in ctx_switch_info - pend_sv_handler uses address in ctx_switch_info.reent instead of fixed offset into atom_tcb - added header with defines for offsets into struct ctx_switch_info used in assembler code. Also added compile time verification for this offsets
86 lines
3.2 KiB
C
86 lines
3.2 KiB
C
/*
|
|
* Copyright (c) 2015, Tido Klaassen. All rights reserved.
|
|
*
|
|
* 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.
|
|
* 3. No personal names or organizations' names associated with the
|
|
* Atomthreads project may be used to endorse or promote products
|
|
* derived from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT 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 PROJECT 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 __ATOM_PORT_H
|
|
#define __ATOM_PORT_H
|
|
|
|
#include <stdint.h>
|
|
#include <stddef.h>
|
|
#include <libopencm3/cm3/cortex.h>
|
|
#include <stdlib.h>
|
|
|
|
/* Required number of system ticks per second (normally 100 for 10ms tick) */
|
|
#define SYSTEM_TICKS_PER_SEC 100
|
|
|
|
/* Size of each stack entry / stack alignment size (4 bytes on Cortex-M without FPU) */
|
|
#define STACK_ALIGN_SIZE sizeof(uint32_t)
|
|
|
|
#define ALIGN(x, a) ((x + (typeof(x))(a) - 1) & ~((typeof(x))(a) - 1))
|
|
#define PTR_ALIGN(p, a) ((typeof(p))ALIGN((uint32_t)(p), (a)))
|
|
#define STACK_ALIGN(p, a) (typeof(p))((typeof(a))(p) & ~((a) - 1))
|
|
|
|
#define POINTER void *
|
|
#define UINT32 uint32_t
|
|
|
|
#define likely(x) __builtin_expect(!!(x), 1)
|
|
#define unlikely(x) __builtin_expect(!!(x), 0)
|
|
#define __maybe_unused __attribute__((unused))
|
|
|
|
#define assert_static(e) \
|
|
do { \
|
|
enum { assert_static__ = 1/(e) }; \
|
|
} while (0)
|
|
|
|
/**
|
|
* Critical region protection: this should disable interrupts
|
|
* to protect OS data structures during modification. It must
|
|
* allow nested calls, which means that interrupts should only
|
|
* be re-enabled when the outer CRITICAL_END() is reached.
|
|
*/
|
|
#define CRITICAL_STORE bool __irq_flags
|
|
#define CRITICAL_START() __irq_flags = cm_mask_interrupts(true)
|
|
#define CRITICAL_END() (void) cm_mask_interrupts(__irq_flags)
|
|
|
|
/**
|
|
* When using newlib, define port private field in atom_tcb to be a
|
|
* struct _reent.
|
|
*/
|
|
#if defined(__NEWLIB__)
|
|
struct cortex_port_priv {
|
|
struct _reent reent;
|
|
};
|
|
|
|
#define THREAD_PORT_PRIV struct cortex_port_priv port_priv
|
|
#endif
|
|
|
|
/* Uncomment to enable stack-checking */
|
|
/* #define ATOM_STACK_CHECKING */
|
|
|
|
#endif /* __ATOM_PORT_H */
|