0a2d5a4e90
1. elfloader for shared object example: TencentOS-tiny\examples\elfloader_shared_object keil: TencentOS-tiny\board\TencentOS_tiny_EVB_MX_Plus\KEIL\elfloader_shared_object 2. elfloader for relocatable object: example: TencentOS-tiny\examples\elfloader_relocatable_object keil: TencentOS-tiny\board\TencentOS_tiny_EVB_MX_Plus\KEIL\elfloader_relocatable_object 3. TODO: - add icache/dcache flush when module is loaded - support more relocation type in elfloader_arch_relocate
75 lines
2.1 KiB
C
75 lines
2.1 KiB
C
/*----------------------------------------------------------------------------
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* Tencent is pleased to support the open source community by making TencentOS
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* available.
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*
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* Copyright (C) 2019 THL A29 Limited, a Tencent company. All rights reserved.
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* If you have downloaded a copy of the TencentOS binary from Tencent, please
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* note that the TencentOS binary is licensed under the BSD 3-Clause License.
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*
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* If you have downloaded a copy of the TencentOS source code from Tencent,
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* please note that TencentOS source code is licensed under the BSD 3-Clause
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* License, except for the third-party components listed below which are
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* subject to different license terms. Your integration of TencentOS into your
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* own projects may require compliance with the BSD 3-Clause License, as well
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* as the other licenses applicable to the third-party components included
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* within TencentOS.
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*---------------------------------------------------------------------------*/
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#ifndef _TOS_ELFLOADER_H_
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#define _TOS_ELFLOADER_H_
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#include "tos_k.h"
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#include "elf/elf32.h"
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#include "tos_elfloader_err.h"
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#include "tos_elfloader_fd_read.h"
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#include "tos_elfloader_symbol.h"
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#include "tos_elfloader_symtab.h"
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#include "tos_elfloader_relocate.h"
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typedef struct el_section_st {
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uint8_t shndx;
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void *address;
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} el_section_t;
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typedef struct el_obj_info_st {
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el_section_t bss;
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el_section_t data;
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el_section_t rodata;
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el_section_t text;
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} el_obj_info_t;
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typedef struct el_so_info_st {
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int32_t load_bias;
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} el_so_info_t;
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typedef union el_info_un {
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el_obj_info_t obj;
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el_so_info_t so;
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} el_info_t;
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typedef struct el_module_st {
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int fd;
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void *base;
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el_info_t info;
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uint32_t symtab_offset;
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uint32_t symtab_size;
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uint32_t symtab_entsize;
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uint32_t strtab_offset;
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} el_module_t;
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__API__ el_err_t tos_elfloader_load(el_module_t *module, int fd);
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__API__ el_err_t tos_elfloader_unload(el_module_t *module);
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__API__ void *tos_elfloader_find_symbol(el_module_t *module, char *symbol);
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#endif /* _TOS_ELFLOADER_H_ */
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