cc334c7273
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types. This handles the remaining includes and kernel, plus
touching up various points that we skipped because of include
dependancies. We also convert the PRI printf formatters in the arch
code over to normal formatters.
Jira: ZEP-2051
Change-Id: Iecbb12601a3ee4ea936fd7ddea37788a645b08b0
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
112 lines
2.2 KiB
C
112 lines
2.2 KiB
C
/*
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* Copyright (c) 2010-2016 Wind River Systems, Inc.
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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/**
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* @brief fixed-size stack object
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*/
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#include <kernel.h>
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#include <kernel_structs.h>
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#include <debug/object_tracing_common.h>
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#include <toolchain.h>
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#include <sections.h>
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#include <ksched.h>
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#include <wait_q.h>
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#include <misc/__assert.h>
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#include <init.h>
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extern struct k_stack _k_stack_list_start[];
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extern struct k_stack _k_stack_list_end[];
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struct k_stack *_trace_list_k_stack;
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#ifdef CONFIG_OBJECT_TRACING
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/*
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* Complete initialization of statically defined stacks.
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*/
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static int init_stack_module(struct device *dev)
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{
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ARG_UNUSED(dev);
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struct k_stack *stack;
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for (stack = _k_stack_list_start; stack < _k_stack_list_end; stack++) {
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SYS_TRACING_OBJ_INIT(k_stack, stack);
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}
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return 0;
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}
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SYS_INIT(init_stack_module, PRE_KERNEL_1, CONFIG_KERNEL_INIT_PRIORITY_OBJECTS);
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#endif /* CONFIG_OBJECT_TRACING */
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void k_stack_init(struct k_stack *stack, u32_t *buffer, int num_entries)
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{
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sys_dlist_init(&stack->wait_q);
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stack->next = stack->base = buffer;
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stack->top = stack->base + num_entries;
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SYS_TRACING_OBJ_INIT(k_stack, stack);
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}
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void k_stack_push(struct k_stack *stack, u32_t data)
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{
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struct k_thread *first_pending_thread;
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unsigned int key;
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__ASSERT(stack->next != stack->top, "stack is full");
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key = irq_lock();
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first_pending_thread = _unpend_first_thread(&stack->wait_q);
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if (first_pending_thread) {
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_abort_thread_timeout(first_pending_thread);
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_ready_thread(first_pending_thread);
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_set_thread_return_value_with_data(first_pending_thread,
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0, (void *)data);
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if (!_is_in_isr() && _must_switch_threads()) {
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(void)_Swap(key);
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return;
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}
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} else {
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*(stack->next) = data;
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stack->next++;
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}
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irq_unlock(key);
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}
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int k_stack_pop(struct k_stack *stack, u32_t *data, s32_t timeout)
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{
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unsigned int key;
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int result;
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key = irq_lock();
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if (likely(stack->next > stack->base)) {
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stack->next--;
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*data = *(stack->next);
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irq_unlock(key);
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return 0;
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}
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if (timeout == K_NO_WAIT) {
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irq_unlock(key);
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return -EBUSY;
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}
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_pend_current_thread(&stack->wait_q, timeout);
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result = _Swap(key);
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if (result == 0) {
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*data = (u32_t)_current->base.swap_data;
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}
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return result;
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}
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