1f362a81f1
The interrupt stack is used as the system stack during kernel initialization while IRQs are not yet enabled. The sp register is set to z_interrupt_stacks + CONFIG_ISR_STACK_SIZE. CONFIG_ISR_STACK_SIZE only represents the desired usable stack size. This does not take into account the added guard area. Result is a stack whose pointer is much closer to the trigger zone than expected when CONFIG_PMP_STACK_GUARD=y, and the SMP configuration in particular pushes it over the edge during many CI test cases. Worse: during early init we're not quite ready to handle exceptions yet and complete havoc ensues with no meaningful debugging output. Make sure the early assembly code locates the actual top of the stack by generating a constant with its true size. Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
122 lines
2.9 KiB
C
122 lines
2.9 KiB
C
/*
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* Copyright (c) 2013-2014 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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#include <zephyr/device.h>
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#include <zephyr/pm/device.h>
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#include "kernel_internal.h"
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#ifndef ZEPHYR_KERNEL_INCLUDE_KERNEL_OFFSETS_H_
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#define ZEPHYR_KERNEL_INCLUDE_KERNEL_OFFSETS_H_
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#include <syscall_list.h>
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/* All of this is build time magic, but LCOV gets confused. Disable coverage
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* for this whole file.
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*
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* LCOV_EXCL_START
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*/
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/*
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* The final link step uses the symbol _OffsetAbsSyms to force the linkage of
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* offsets.o into the ELF image.
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*/
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GEN_ABS_SYM_BEGIN(_OffsetAbsSyms)
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GEN_OFFSET_SYM(_cpu_t, current);
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GEN_OFFSET_SYM(_cpu_t, nested);
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GEN_OFFSET_SYM(_cpu_t, irq_stack);
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GEN_OFFSET_SYM(_cpu_t, arch);
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GEN_ABSOLUTE_SYM(___cpu_t_SIZEOF, sizeof(struct _cpu));
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GEN_OFFSET_SYM(_kernel_t, cpus);
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#if defined(CONFIG_FPU_SHARING)
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GEN_OFFSET_SYM(_cpu_t, fp_ctx);
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#endif
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#if defined(CONFIG_THREAD_MONITOR)
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GEN_OFFSET_SYM(_kernel_t, threads);
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#endif
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#ifdef CONFIG_PM
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GEN_OFFSET_SYM(_kernel_t, idle);
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#endif
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#ifndef CONFIG_SCHED_CPU_MASK_PIN_ONLY
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GEN_OFFSET_SYM(_kernel_t, ready_q);
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#endif
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#ifndef CONFIG_SMP
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GEN_OFFSET_SYM(_ready_q_t, cache);
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#endif
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#ifdef CONFIG_FPU_SHARING
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GEN_OFFSET_SYM(_kernel_t, current_fp);
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#endif
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GEN_ABSOLUTE_SYM(_STRUCT_KERNEL_SIZE, sizeof(struct z_kernel));
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GEN_OFFSET_SYM(_thread_base_t, user_options);
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GEN_OFFSET_SYM(_thread_base_t, thread_state);
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GEN_OFFSET_SYM(_thread_base_t, prio);
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GEN_OFFSET_SYM(_thread_base_t, sched_locked);
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GEN_OFFSET_SYM(_thread_base_t, preempt);
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GEN_OFFSET_SYM(_thread_base_t, swap_data);
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GEN_OFFSET_SYM(_thread_t, base);
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GEN_OFFSET_SYM(_thread_t, callee_saved);
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GEN_OFFSET_SYM(_thread_t, arch);
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#ifdef CONFIG_USE_SWITCH
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GEN_OFFSET_SYM(_thread_t, switch_handle);
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#endif
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#ifdef CONFIG_THREAD_STACK_INFO
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GEN_OFFSET_SYM(_thread_stack_info_t, start);
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GEN_OFFSET_SYM(_thread_stack_info_t, size);
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GEN_OFFSET_SYM(_thread_t, stack_info);
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#endif
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#if defined(CONFIG_THREAD_MONITOR)
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GEN_OFFSET_SYM(_thread_t, next_thread);
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#endif
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#ifdef CONFIG_THREAD_CUSTOM_DATA
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GEN_OFFSET_SYM(_thread_t, custom_data);
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#endif
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#ifdef CONFIG_THREAD_LOCAL_STORAGE
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GEN_OFFSET_SYM(_thread_t, tls);
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#endif
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GEN_ABSOLUTE_SYM(K_THREAD_SIZEOF, sizeof(struct k_thread));
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GEN_ABSOLUTE_SYM(__z_interrupt_stack_SIZEOF, sizeof(z_interrupt_stacks[0]));
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/* size of the device structure. Used by linker scripts */
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GEN_ABSOLUTE_SYM(_DEVICE_STRUCT_SIZEOF, sizeof(const struct device));
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/* member offsets in the device structure. Used in image post-processing */
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GEN_ABSOLUTE_SYM(_DEVICE_STRUCT_HANDLES_OFFSET,
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offsetof(struct device, handles));
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#ifdef CONFIG_PM_DEVICE
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GEN_ABSOLUTE_SYM(_DEVICE_STRUCT_PM_OFFSET,
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offsetof(struct device, pm));
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#endif
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/* member offsets in the pm_device structure. Used in image post-processing */
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GEN_ABSOLUTE_SYM(_PM_DEVICE_STRUCT_FLAGS_OFFSET,
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offsetof(struct pm_device, flags));
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GEN_ABSOLUTE_SYM(_PM_DEVICE_FLAG_PD, PM_DEVICE_FLAG_PD);
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/* LCOV_EXCL_STOP */
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#endif /* ZEPHYR_KERNEL_INCLUDE_KERNEL_OFFSETS_H_ */
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