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/* * Copyright (c) 2017 Intel Corporation * * SPDX-License-Identifier: Apache-2.0 */ #ifdef CONFIG_USERSPACE /* Constraints: * * - changes to the size of this section between build phases * *must not* shift the memory address of any kernel obejcts, * since it contains a hashtable of the memory addresses of those * kernel objects * * - It is OK if this section itself is shifted in between builds; for * example some arches may precede this section with generated MMU * page tables which are also unpredictable in size. * * The size of the * gperf tables is both a function of the number of kernel objects, * *and* the specific memory addresses being hashed. It is not something * that can be predicted without actually building and compling it. */ SECTION_DATA_PROLOGUE(kobject_data,,) { *(".kobject_data.data*") #ifndef LINKER_PASS2 #ifdef CONFIG_DYNAMIC_OBJECTS PROVIDE(_thread_idx_map = .); . += CONFIG_MAX_THREAD_BYTES; #endif #endif /* This is also unpredictable in size, and has the same constraints. * On XIP systems this will get put at the very end of ROM. */ #ifndef CONFIG_XIP *(".kobject_data.rodata*") #endif } GROUP_DATA_LINK_IN(RAMABLE_REGION, ROMABLE_REGION) #endif /* CONFIG_USERSPACE */ |