e694656345
When in SMP mode, the nested/irq_stack/current fields are specific to the current CPU and not to the kernel as a whole, so we need an array of these. Place them in a _cpu_t struct and implement a _arch_curr_cpu() function to retrieve the pointer. When not in SMP mode, the first CPU's fields are defined as a unioned with the first _cpu_t record. This permits compatibility with legacy assembly on other platforms. Long term, all users, including uniprocessor architectures, should be updated to use the new scheme. Fundamentally this is just renaming: the structure layout and runtime code do not change on any existing platforms and won't until someone defines a second CPU. Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
86 lines
2 KiB
C
86 lines
2 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 <device.h>
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#ifndef _kernel_offsets__h_
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#define _kernel_offsets__h_
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#include <syscall_list.h>
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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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#ifndef CONFIG_SMP
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GEN_OFFSET_SYM(_kernel_t, current);
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GEN_OFFSET_SYM(_kernel_t, nested);
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GEN_OFFSET_SYM(_kernel_t, irq_stack);
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#endif
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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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#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_SYS_POWER_MANAGEMENT
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GEN_OFFSET_SYM(_kernel_t, idle);
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#endif
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GEN_OFFSET_SYM(_kernel_t, ready_q);
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GEN_OFFSET_SYM(_kernel_t, arch);
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GEN_OFFSET_SYM(_ready_q_t, cache);
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#ifdef CONFIG_FP_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 _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, caller_saved);
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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_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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GEN_ABSOLUTE_SYM(K_THREAD_SIZEOF, sizeof(struct k_thread));
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/* size of the device structure. Used by linker scripts */
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GEN_ABSOLUTE_SYM(_DEVICE_STRUCT_SIZE, sizeof(struct device));
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/* Access to enum values in asm code */
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GEN_ABSOLUTE_SYM(_SYSCALL_LIMIT, K_SYSCALL_LIMIT);
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GEN_ABSOLUTE_SYM(_SYSCALL_BAD, K_SYSCALL_BAD);
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#endif /* _kernel_offsets__h_ */
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