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/***************************************************************************
* Copyright (c) 2024 Microsoft Corporation
*
* This program and the accompanying materials are made available under the
* terms of the MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/** */
/** ThreadX Component */
/** */
/** Port Specific */
/** */
/**************************************************************************/
/**************************************************************************/
/**************************************************************************/
/* */
/* PORT SPECIFIC C INFORMATION RELEASE */
/* */
/* tx_port.h Linux/GNU */
/* 6.3.0 */
/* */
/* AUTHOR */
/* */
/* William E. Lamie, Microsoft Corporation */
/* */
/* DESCRIPTION */
/* */
/* This file contains data type definitions that make the ThreadX */
/* real-time kernel function identically on a variety of different */
/* processor architectures. For example, the size or number of bits */
/* in an "int" data type vary between microprocessor architectures and */
/* even C compilers for the same microprocessor. ThreadX does not */
/* directly use native C data types. Instead, ThreadX creates its */
/* own special types that can be mapped to actual data types by this */
/* file to guarantee consistency in the interface and functionality. */
/* */
/* RELEASE HISTORY */
/* */
/* DATE NAME DESCRIPTION */
/* */
/* 09-30-2020 William E. Lamie Initial Version 6.1 */
/* 10-15-2021 William E. Lamie Modified comment(s), added */
/* symbol ULONG64_DEFINED, */
/* resulting in version 6.1.9 */
/* 04-25-2022 William E. Lamie Modified comment(s), removed */
/* useless definition, */
/* resulting in version 6.1.11 */
/* 10-31-2023 Yanwu Cai Modified comment(s), fixed */
/* compile warnings, */
/* resulting in version 6.3.0 */
/* */
/**************************************************************************/
#ifndef TX_PORT_H
#define TX_PORT_H
#define TX_MAX_PRIORITIES 32
/* #define TX_MISRA_ENABLE */
/* #define TX_INLINE_INITIALIZATION */
/* #define TX_NOT_INTERRUPTABLE */
/* #define TX_TIMER_PROCESS_IN_ISR */
/* #define TX_REACTIVATE_INLINE */
/* #define TX_DISABLE_STACK_FILLING */
/* #define TX_ENABLE_STACK_CHECKING */
/* #define TX_DISABLE_PREEMPTION_THRESHOLD */
/* #define TX_DISABLE_REDUNDANT_CLEARING */
/* #define TX_DISABLE_NOTIFY_CALLBACKS */
/* #define TX_INLINE_THREAD_RESUME_SUSPEND */
/* #define TX_ENABLE_EVENT_TRACE */
/* For MISRA, define enable performance info. Also, for MISRA TX_DISABLE_NOTIFY_CALLBACKS should not be defined. */
/* #define TX_BLOCK_POOL_ENABLE_PERFORMANCE_INFO
#define TX_BYTE_POOL_ENABLE_PERFORMANCE_INFO
#define TX_EVENT_FLAGS_ENABLE_PERFORMANCE_INFO
#define TX_MUTEX_ENABLE_PERFORMANCE_INFO
#define TX_QUEUE_ENABLE_PERFORMANCE_INFO
#define TX_SEMAPHORE_ENABLE_PERFORMANCE_INFO
#define TX_THREAD_ENABLE_PERFORMANCE_INFO
#define TX_TIMER_ENABLE_PERFORMANCE_INFO */
/* Determine if the optional ThreadX user define file should be used. */
#ifdef TX_INCLUDE_USER_DEFINE_FILE
/* Yes, include the user defines in tx_user.h. The defines in this file may
alternately be defined on the command line. */
#include "tx_user.h"
#endif
/* Define compiler library include files. */
#include <stdlib.h>
#include <string.h>
#include <stdint.h>
#ifndef __USE_POSIX199309
#define __USE_POSIX199309
#include <pthread.h>
#include <semaphore.h>
#include <time.h>
#undef __USE_POSIX199309
#else /* __USE_POSIX199309 */
#include <pthread.h>
#include <semaphore.h>
#include <time.h>
#endif /* __USE_POSIX199309 */
/* Define ThreadX basic types for this port. */
typedef void VOID;
typedef char CHAR;
typedef unsigned char UCHAR;
typedef int INT;
typedef unsigned int UINT;
#if defined(__x86_64__) && __x86_64__
typedef int LONG;
typedef unsigned int ULONG;
#else /* __x86_64__ */
typedef long LONG;
typedef unsigned long ULONG;
#endif /* __x86_64__ */
typedef short SHORT;
typedef unsigned short USHORT;
typedef uint64_t ULONG64;
#define ULONG64_DEFINED
/* Override the alignment type to use 64-bit alignment and storage for pointers. */
#if defined(__x86_64__) && __x86_64__
#define ALIGN_TYPE_DEFINED
typedef unsigned long long ALIGN_TYPE;
/* Override the free block marker for byte pools to be a 64-bit constant. */
#define TX_BYTE_BLOCK_FREE ((ALIGN_TYPE) 0xFFFFEEEEFFFFEEEE)
#endif
/* Define automated coverage test extensions... These are required for the
ThreadX regression test. */
typedef unsigned int TEST_FLAG;
extern TEST_FLAG threadx_byte_allocate_loop_test;
extern TEST_FLAG threadx_byte_release_loop_test;
extern TEST_FLAG threadx_mutex_suspension_put_test;
extern TEST_FLAG threadx_mutex_suspension_priority_test;
#ifndef TX_TIMER_PROCESS_IN_ISR
extern TEST_FLAG threadx_delete_timer_thread;
#endif
extern void abort_and_resume_byte_allocating_thread(void);
extern void abort_all_threads_suspended_on_mutex(void);
extern void suspend_lowest_priority(void);
#ifndef TX_TIMER_PROCESS_IN_ISR
extern void delete_timer_thread(void);
#endif
extern TEST_FLAG test_stack_analyze_flag;
extern TEST_FLAG test_initialize_flag;
extern TEST_FLAG test_forced_mutex_timeout;
#ifdef TX_REGRESSION_TEST
/* Define extension macros for automated coverage tests. */
#define TX_BYTE_ALLOCATE_EXTENSION if (threadx_byte_allocate_loop_test == ((TEST_FLAG) 1)) \
{ \
pool_ptr -> tx_byte_pool_owner = TX_NULL; \
threadx_byte_allocate_loop_test = ((TEST_FLAG) 0); \
}
#define TX_BYTE_RELEASE_EXTENSION if (threadx_byte_release_loop_test == ((TEST_FLAG) 1)) \
{ \
threadx_byte_release_loop_test = ((TEST_FLAG) 0); \
abort_and_resume_byte_allocating_thread(); \
}
#define TX_MUTEX_PUT_EXTENSION_1 if (threadx_mutex_suspension_put_test == ((TEST_FLAG) 1)) \
{ \
threadx_mutex_suspension_put_test = ((TEST_FLAG) 0); \
abort_all_threads_suspended_on_mutex(); \
}
#define TX_MUTEX_PUT_EXTENSION_2 if (test_forced_mutex_timeout == ((TEST_FLAG) 1)) \
{ \
test_forced_mutex_timeout = ((TEST_FLAG) 0); \
_tx_thread_wait_abort(mutex_ptr -> tx_mutex_suspension_list); \
}
#define TX_MUTEX_PRIORITY_CHANGE_EXTENSION if (threadx_mutex_suspension_priority_test == ((TEST_FLAG) 1)) \
{ \
threadx_mutex_suspension_priority_test = ((TEST_FLAG) 0); \
suspend_lowest_priority(); \
}
#ifndef TX_TIMER_PROCESS_IN_ISR
#define TX_TIMER_INITIALIZE_EXTENSION(a) if (threadx_delete_timer_thread == ((TEST_FLAG) 1)) \
{ \
threadx_delete_timer_thread = ((TEST_FLAG) 0); \
delete_timer_thread(); \
(a) = ((UINT) 1); \
}
#endif
#define TX_THREAD_STACK_ANALYZE_EXTENSION if (test_stack_analyze_flag == ((TEST_FLAG) 1)) \
{ \
thread_ptr -> tx_thread_id = ((TEST_FLAG) 0); \
test_stack_analyze_flag = ((TEST_FLAG) 0); \
} \
else if (test_stack_analyze_flag == ((TEST_FLAG) 2)) \
{ \
stack_ptr = thread_ptr -> tx_thread_stack_start; \
test_stack_analyze_flag = ((TEST_FLAG) 0); \
} \
else if (test_stack_analyze_flag == ((TEST_FLAG) 3)) \
{ \
*stack_ptr = TX_STACK_FILL; \
test_stack_analyze_flag = ((TEST_FLAG) 0); \
} \
else \
{ \
test_stack_analyze_flag = ((TEST_FLAG) 0); \
}
#define TX_INITIALIZE_KERNEL_ENTER_EXTENSION if (test_initialize_flag == ((TEST_FLAG) 1)) \
{ \
test_initialize_flag = ((TEST_FLAG) 0); \
return; \
}
#endif
/* Add Linux debug insert prototype. */
void _tx_linux_debug_entry_insert(char *action, char *file, unsigned long line);
#ifndef TX_LINUX_DEBUG_ENABLE
/* If Linux debug is not enabled, turn logging into white-space. */
#define _tx_linux_debug_entry_insert(a, b, c)
#endif
/* Define the TX_MEMSET macro to remove library reference. */
#ifndef TX_MISRA_ENABLE
#define TX_MEMSET(a,b,c) { \
UCHAR *ptr; \
UCHAR value; \
UINT i, size; \
ptr = (UCHAR *) ((VOID *) a); \
value = (UCHAR) b; \
size = (UINT) c; \
for (i = 0; i < size; i++) \
{ \
*ptr++ = value; \
} \
}
#endif
/* Define the priority levels for ThreadX. Legal values range
from 32 to 1024 and MUST be evenly divisible by 32. */
#ifndef TX_MAX_PRIORITIES
#define TX_MAX_PRIORITIES 32
#endif
/* Define the minimum stack for a ThreadX thread on this processor. If the size supplied during
thread creation is less than this value, the thread create call will return an error. */
#ifndef TX_MINIMUM_STACK
#define TX_MINIMUM_STACK 200 /* Minimum stack size for this port */
#endif
/* Define the system timer thread's default stack size and priority. These are only applicable
if TX_TIMER_PROCESS_IN_ISR is not defined. */
#ifndef TX_TIMER_THREAD_STACK_SIZE
#define TX_TIMER_THREAD_STACK_SIZE 400 /* Default timer thread stack size - Not used in Linux port! */
#endif
#ifndef TX_TIMER_THREAD_PRIORITY
#define TX_TIMER_THREAD_PRIORITY 0 /* Default timer thread priority */
#endif
/* Define various constants for the ThreadX port. */
#define TX_INT_DISABLE 1 /* Disable interrupts */
#define TX_INT_ENABLE 0 /* Enable interrupts */
/* Define the clock source for trace event entry time stamp. The following two item are port specific.
For example, if the time source is at the address 0x0a800024 and is 16-bits in size, the clock
source constants would be:
#define TX_TRACE_TIME_SOURCE *((ULONG *) 0x0a800024)
#define TX_TRACE_TIME_MASK 0x0000FFFFUL
*/
#ifndef TX_MISRA_ENABLE
#ifndef TX_TRACE_TIME_SOURCE
#define TX_TRACE_TIME_SOURCE ((ULONG) (_tx_linux_time_stamp.tv_nsec));
#endif
#else
ULONG _tx_misra_time_stamp_get(VOID);
#define TX_TRACE_TIME_SOURCE _tx_misra_time_stamp_get()
#endif
#ifndef TX_TRACE_TIME_MASK
#define TX_TRACE_TIME_MASK 0xFFFFFFFFUL
#endif
/* Define the port-specific trace extension to pickup the Windows timer. */
#define TX_TRACE_PORT_EXTENSION clock_gettime(CLOCK_REALTIME, &_tx_linux_time_stamp);
/* Define the port specific options for the _tx_build_options variable. This variable indicates
how the ThreadX library was built. */
#define TX_PORT_SPECIFIC_BUILD_OPTIONS 0
/* Define the in-line initialization constant so that modules with in-line
initialization capabilities can prevent their initialization from being
a function call. */
#ifdef TX_MISRA_ENABLE
#define TX_DISABLE_INLINE
#else
#define TX_INLINE_INITIALIZATION
#endif
/* Define the Linux-specific initialization code that is expanded in the generic source. */
void _tx_initialize_start_interrupts(void);
#define TX_PORT_SPECIFIC_PRE_SCHEDULER_INITIALIZATION _tx_initialize_start_interrupts();
/* Determine whether or not stack checking is enabled. By default, ThreadX stack checking is
disabled. When the following is defined, ThreadX thread stack checking is enabled. If stack
checking is enabled (TX_ENABLE_STACK_CHECKING is defined), the TX_DISABLE_STACK_FILLING
define is negated, thereby forcing the stack fill which is necessary for the stack checking
logic. */
#ifndef TX_MISRA_ENABLE
#ifdef TX_ENABLE_STACK_CHECKING
#undef TX_DISABLE_STACK_FILLING
#endif
#endif
/* Define the TX_THREAD control block extensions for this port. The main reason
for the multiple macros is so that backward compatibility can be maintained with
existing ThreadX kernel awareness modules. */
#define TX_THREAD_EXTENSION_0 pthread_t tx_thread_linux_thread_id; \
sem_t tx_thread_linux_thread_run_semaphore; \
UINT tx_thread_linux_suspension_type; \
UINT tx_thread_linux_int_disabled_flag;
#define TX_THREAD_EXTENSION_1 VOID *tx_thread_extension_ptr;
#define TX_THREAD_EXTENSION_2
#define TX_THREAD_EXTENSION_3
/* Define the port extensions of the remaining ThreadX objects. */
#define TX_BLOCK_POOL_EXTENSION
#define TX_BYTE_POOL_EXTENSION
#define TX_EVENT_FLAGS_GROUP_EXTENSION
#define TX_MUTEX_EXTENSION
#define TX_QUEUE_EXTENSION
#define TX_SEMAPHORE_EXTENSION
#define TX_TIMER_EXTENSION
/* Define the user extension field of the thread control block. Nothing
additional is needed for this port so it is defined as white space. */
#ifndef TX_THREAD_USER_EXTENSION
#define TX_THREAD_USER_EXTENSION
#endif
/* Define the macros for processing extensions in tx_thread_create, tx_thread_delete,
tx_thread_shell_entry, and tx_thread_terminate. */
#define TX_THREAD_CREATE_EXTENSION(thread_ptr)
#define TX_THREAD_DELETE_EXTENSION(thread_ptr)
#define TX_THREAD_COMPLETED_EXTENSION(thread_ptr)
#define TX_THREAD_TERMINATED_EXTENSION(thread_ptr)
/* Define the ThreadX object creation extensions for the remaining objects. */
#define TX_BLOCK_POOL_CREATE_EXTENSION(pool_ptr)
#define TX_BYTE_POOL_CREATE_EXTENSION(pool_ptr)
#define TX_EVENT_FLAGS_GROUP_CREATE_EXTENSION(group_ptr)
#define TX_MUTEX_CREATE_EXTENSION(mutex_ptr)
#define TX_QUEUE_CREATE_EXTENSION(queue_ptr)
#define TX_SEMAPHORE_CREATE_EXTENSION(semaphore_ptr)
#define TX_TIMER_CREATE_EXTENSION(timer_ptr)
/* Define the ThreadX object deletion extensions for the remaining objects. */
#define TX_BLOCK_POOL_DELETE_EXTENSION(pool_ptr)
#define TX_BYTE_POOL_DELETE_EXTENSION(pool_ptr)
#define TX_EVENT_FLAGS_GROUP_DELETE_EXTENSION(group_ptr)
#define TX_MUTEX_DELETE_EXTENSION(mutex_ptr)
#define TX_QUEUE_DELETE_EXTENSION(queue_ptr)
#define TX_SEMAPHORE_DELETE_EXTENSION(semaphore_ptr)
#define TX_TIMER_DELETE_EXTENSION(timer_ptr)
struct TX_THREAD_STRUCT;
/* Define post completion processing for tx_thread_delete, so that the Linux thread resources are properly removed. */
void _tx_thread_delete_port_completion(struct TX_THREAD_STRUCT *thread_ptr, UINT tx_saved_posture);
#define TX_THREAD_DELETE_PORT_COMPLETION(thread_ptr) _tx_thread_delete_port_completion(thread_ptr, tx_saved_posture);
/* Define post completion processing for tx_thread_reset, so that the Linux thread resources are properly removed. */
void _tx_thread_reset_port_completion(struct TX_THREAD_STRUCT *thread_ptr, UINT tx_saved_posture);
#define TX_THREAD_RESET_PORT_COMPLETION(thread_ptr) _tx_thread_reset_port_completion(thread_ptr, tx_saved_posture);
#if defined(__x86_64__) && __x86_64__
/* Define the ThreadX object deletion extensions for the remaining objects. */
#define TX_BLOCK_POOL_DELETE_EXTENSION(pool_ptr)
#define TX_BYTE_POOL_DELETE_EXTENSION(pool_ptr)
#define TX_EVENT_FLAGS_GROUP_DELETE_EXTENSION(group_ptr)
#define TX_MUTEX_DELETE_EXTENSION(mutex_ptr)
#define TX_QUEUE_DELETE_EXTENSION(queue_ptr)
#define TX_SEMAPHORE_DELETE_EXTENSION(semaphore_ptr)
#define TX_TIMER_DELETE_EXTENSION(timer_ptr)
/* Define the internal timer extension to also hold the thread pointer such that _tx_thread_timeout
can figure out what thread timeout to process. */
#define TX_TIMER_INTERNAL_EXTENSION VOID *tx_timer_internal_extension_ptr;
/* Define the thread timeout setup logic in _tx_thread_create. */
#define TX_THREAD_CREATE_TIMEOUT_SETUP(t) (t) -> tx_thread_timer.tx_timer_internal_timeout_function = &(_tx_thread_timeout); \
(t) -> tx_thread_timer.tx_timer_internal_timeout_param = 0; \
(t) -> tx_thread_timer.tx_timer_internal_extension_ptr = (VOID *) (t);
/* Define the thread timeout pointer setup in _tx_thread_timeout. */
#define TX_THREAD_TIMEOUT_POINTER_SETUP(t) (t) = (TX_THREAD *) _tx_timer_expired_timer_ptr -> tx_timer_internal_extension_ptr;
#endif /* __x86_64__ */
/* Define ThreadX interrupt lockout and restore macros for protection on
access of critical kernel information. The restore interrupt macro must
restore the interrupt posture of the running thread prior to the value
present prior to the disable macro. In most cases, the save area macro
is used to define a local function save area for the disable and restore
macros. */
UINT _tx_thread_interrupt_disable(void);
VOID _tx_thread_interrupt_restore(UINT previous_posture);
#define TX_INTERRUPT_SAVE_AREA UINT tx_saved_posture;
#ifndef TX_LINUX_DEBUG_ENABLE
#define TX_DISABLE tx_saved_posture = _tx_thread_interrupt_disable();
#define TX_RESTORE _tx_thread_interrupt_restore(tx_saved_posture);
#else
#define TX_DISABLE _tx_linux_debug_entry_insert("DISABLE", __FILE__, __LINE__); \
tx_saved_posture = _tx_thread_interrupt_disable();
#define TX_RESTORE _tx_linux_debug_entry_insert("RESTORE", __FILE__, __LINE__); \
_tx_thread_interrupt_restore(tx_saved_posture);
#endif /* TX_LINUX_DEBUG_ENABLE */
#define tx_linux_mutex_lock(p) pthread_mutex_lock(&p)
#define tx_linux_mutex_unlock(p) pthread_mutex_unlock(&p)
#define tx_linux_mutex_recursive_unlock(p) {\
int _recursive_count = (int)tx_linux_mutex_recursive_count;\
while(_recursive_count)\
{\
pthread_mutex_unlock(&p);\
_recursive_count--;\
}\
}
#define tx_linux_mutex_recursive_count _tx_linux_mutex.__data.__count
#define tx_linux_sem_post(p) tx_linux_mutex_lock(_tx_linux_mutex);\
sem_post(p);\
tx_linux_mutex_unlock(_tx_linux_mutex)
#define tx_linux_sem_post_nolock(p) sem_post(p)
#define tx_linux_sem_wait(p) sem_wait(p)
/* Define the interrupt lockout macros for each ThreadX object. */
#define TX_BLOCK_POOL_DISABLE TX_DISABLE
#define TX_BYTE_POOL_DISABLE TX_DISABLE
#define TX_EVENT_FLAGS_GROUP_DISABLE TX_DISABLE
#define TX_MUTEX_DISABLE TX_DISABLE
#define TX_QUEUE_DISABLE TX_DISABLE
#define TX_SEMAPHORE_DISABLE TX_DISABLE
/* Define the version ID of ThreadX. This may be utilized by the application. */
#ifdef TX_THREAD_INIT
CHAR _tx_version_id[] =
"Copyright (c) Microsoft Corporation * ThreadX Linux/gcc Version 6.4.2 *";
#else
extern CHAR _tx_version_id[];
#endif
/* Define externals for the Linux port of ThreadX. */
extern pthread_mutex_t _tx_linux_mutex;
extern sem_t _tx_linux_semaphore;
extern sem_t _tx_linux_semaphore_no_idle;
extern ULONG _tx_linux_global_int_disabled_flag;
extern struct timespec _tx_linux_time_stamp;
extern __thread int _tx_linux_threadx_thread;
/* Define functions for linux thread. */
void _tx_linux_thread_suspend(pthread_t thread_id);
void _tx_linux_thread_resume(pthread_t thread_id);
void _tx_linux_thread_init(void);
#ifndef TX_LINUX_MEMORY_SIZE
#define TX_LINUX_MEMORY_SIZE 64000
#endif
/* Define priorities of pthreads. */
#define TX_LINUX_PRIORITY_SCHEDULE (3)
#define TX_LINUX_PRIORITY_ISR (2)
#define TX_LINUX_PRIORITY_USER_THREAD (1)
#endif
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