| /* |
| * Copyright (c) 2010-2015 Wind River Systems, Inc. |
| * Copyright (c) 2017 Oticon A/S |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /** |
| * @file |
| * @brief Thread support primitives |
| * |
| * This module provides core thread related primitives for the POSIX |
| * architecture |
| */ |
| |
| #ifdef CONFIG_INIT_STACKS |
| #include <string.h> |
| #endif /* CONFIG_INIT_STACKS */ |
| |
| #include <toolchain.h> |
| #include <kernel_structs.h> |
| #include <wait_q.h> |
| |
| #include "posix_core.h" |
| #include "posix_soc_if.h" |
| |
| |
| /** |
| * @brief Create a new kernel execution thread |
| * |
| * Initializes the k_thread object and sets up initial stack frame. |
| * |
| * @param thread pointer to thread struct memory, including any space needed |
| * for extra coprocessor context |
| * @param stack the pointer to aligned stack memory |
| * @param stack_size the stack size in bytes |
| * @param entry thread entry point routine |
| * @param arg1 first param to entry point |
| * @param arg2 second param to entry point |
| * @param arg3 third param to entry point |
| * @param priority thread priority |
| * @param options thread options: K_ESSENTIAL, K_FP_REGS, K_SSE_REGS |
| * |
| * Note that in this arch we cheat quite a bit: we use as stack a normal |
| * pthreads stack and therefore we ignore the stack size |
| * |
| */ |
| void _new_thread(struct k_thread *thread, k_thread_stack_t *stack, |
| size_t stack_size, k_thread_entry_t thread_func, |
| void *arg1, void *arg2, void *arg3, |
| int priority, unsigned int options) |
| { |
| |
| char *stack_memory = K_THREAD_STACK_BUFFER(stack); |
| |
| _ASSERT_VALID_PRIO(priority, thread_func); |
| |
| posix_thread_status_t *thread_status; |
| |
| _new_thread_init(thread, stack_memory, stack_size, priority, options); |
| |
| /* We store it in the same place where normal archs store the |
| * "initial stack frame" |
| */ |
| thread_status = (posix_thread_status_t *) |
| STACK_ROUND_DOWN(stack_memory + stack_size |
| - sizeof(*thread_status)); |
| |
| /* _thread_entry() arguments */ |
| thread_status->entry_point = thread_func; |
| thread_status->arg1 = arg1; |
| thread_status->arg2 = arg2; |
| thread_status->arg3 = arg3; |
| #if defined(CONFIG_ARCH_HAS_THREAD_ABORT) |
| thread_status->aborted = 0; |
| #endif |
| |
| thread->callee_saved.thread_status = (u32_t)thread_status; |
| |
| |
| posix_new_thread(thread_status); |
| |
| thread_monitor_init(thread); |
| } |
| |
| void posix_new_thread_pre_start(void) |
| { |
| posix_irq_full_unlock(); |
| } |