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https://github.com/zephyrproject-rtos/zephyr
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c792d78cb3
Adds fixes to get LLEXT tests to work for NSIM VPX on MWDT. Excludes prelocated extensions for MWDT for now. Signed-off-by: Lauren Murphy <lauren.murphy@intel.com>
137 lines
3.5 KiB
C
137 lines
3.5 KiB
C
/*
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* Copyright (c) 2024 Arduino SA
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#ifndef ZEPHYR_SUBSYS_LLEXT_PRIV_H_
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#define ZEPHYR_SUBSYS_LLEXT_PRIV_H_
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#include <zephyr/kernel.h>
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#include <zephyr/llext/llext.h>
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#include <zephyr/llext/llext_internal.h>
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#include <zephyr/sys/slist.h>
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#include <zephyr/device.h>
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#include <zephyr/devicetree.h>
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/*
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* Macro to determine if section / region is in instruction memory
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* Will need to be updated if any non-ARC boards using Harvard architecture is added
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*/
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#if CONFIG_HARVARD && CONFIG_ARC
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#define IN_NODE(inst, compat, base_addr, alloc) \
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(((uintptr_t)(base_addr) >= DT_REG_ADDR(DT_INST(inst, compat)) && \
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(uintptr_t)(base_addr + alloc) <= \
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DT_REG_ADDR(DT_INST(inst, compat)) + DT_REG_SIZE(DT_INST(inst, compat)))) ||
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#define INSTR_FETCHABLE(base_addr, alloc) \
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DT_COMPAT_FOREACH_STATUS_OKAY_VARGS(arc_iccm, IN_NODE, base_addr, alloc) false
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#elif CONFIG_HARVARD && !CONFIG_ARC
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/* Unknown if section / region is in instruction memory; warn or compensate */
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#define INSTR_FETCHABLE(base_addr, alloc) false
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#else /* all non-Harvard architectures */
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#define INSTR_FETCHABLE(base_addr, alloc) true
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#endif
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/*
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* Global extension list
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*/
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extern sys_slist_t llext_list;
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extern struct k_mutex llext_lock;
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/*
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* Memory management (llext_mem.c)
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*/
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int llext_copy_strings(struct llext_loader *ldr, struct llext *ext,
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const struct llext_load_param *ldr_parm);
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int llext_copy_regions(struct llext_loader *ldr, struct llext *ext,
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const struct llext_load_param *ldr_parm);
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void llext_free_regions(struct llext *ext);
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void llext_adjust_mmu_permissions(struct llext *ext);
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#ifdef CONFIG_HARVARD
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extern struct k_heap llext_instr_heap;
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extern struct k_heap llext_data_heap;
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#else
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extern struct k_heap llext_heap;
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#define llext_instr_heap llext_heap
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#define llext_data_heap llext_heap
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#endif
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static inline bool llext_heap_is_inited(void)
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{
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#ifdef CONFIG_LLEXT_HEAP_DYNAMIC
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extern bool llext_heap_inited;
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return llext_heap_inited;
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#else
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return true;
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#endif
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}
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static inline void *llext_alloc_data(size_t bytes)
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{
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if (!llext_heap_is_inited()) {
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return NULL;
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}
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/* Used for LLEXT metadata */
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return k_heap_alloc(&llext_data_heap, bytes, K_NO_WAIT);
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}
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static inline void *llext_aligned_alloc_data(size_t align, size_t bytes)
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{
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if (!llext_heap_is_inited()) {
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return NULL;
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}
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/* Used for LLEXT metadata OR non-executable section */
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return k_heap_aligned_alloc(&llext_data_heap, align, bytes, K_NO_WAIT);
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}
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static inline void llext_free(void *ptr)
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{
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if (!llext_heap_is_inited()) {
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return;
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}
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k_heap_free(&llext_data_heap, ptr);
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}
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static inline void *llext_aligned_alloc_instr(size_t align, size_t bytes)
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{
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if (!llext_heap_is_inited()) {
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return NULL;
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}
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return k_heap_aligned_alloc(&llext_instr_heap, align, bytes, K_NO_WAIT);
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}
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static inline void llext_free_instr(void *ptr)
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{
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if (!llext_heap_is_inited()) {
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return;
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}
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k_heap_free(&llext_instr_heap, ptr);
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}
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/*
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* ELF parsing (llext_load.c)
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*/
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int do_llext_load(struct llext_loader *ldr, struct llext *ext,
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const struct llext_load_param *ldr_parm);
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/*
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* Relocation (llext_link.c)
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*/
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int llext_link(struct llext_loader *ldr, struct llext *ext,
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const struct llext_load_param *ldr_parm);
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ssize_t llext_file_offset(struct llext_loader *ldr, uintptr_t offset);
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void llext_dependency_remove_all(struct llext *ext);
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#endif /* ZEPHYR_SUBSYS_LLEXT_PRIV_H_ */
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