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@@ -4,9 +4,9 @@
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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- * Date Author Notes
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- * 2018/08/29 Bernard first version
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- * 2021/04/23 chunyexixiaoyu distinguish 32-bit and 64-bit
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+ * Date Author Notes
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+ * 2018/08/29 Bernard first version
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+ * 2021/04/23 chunyexixiaoyu distinguish 32-bit and 64-bit
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*/
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#ifndef DL_ELF_H__
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@@ -20,14 +20,14 @@ typedef rt_int32_t Elf32_Sword; /* Signed large integer */
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typedef rt_uint32_t Elf32_Word; /* Unsigned large integer */
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typedef rt_uint16_t Elf32_Half; /* Unsigned medium integer */
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-typedef rt_uint64_t Elf64_Addr;
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-typedef rt_uint16_t Elf64_Half;
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-typedef rt_int16_t Elf64_SHalf;
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-typedef rt_uint64_t Elf64_Off;
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-typedef rt_int32_t Elf64_Sword;
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-typedef rt_uint32_t Elf64_Word;
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-typedef rt_uint64_t Elf64_Xword;
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-typedef rt_int64_t Elf64_Sxword;
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+typedef rt_uint64_t Elf64_Addr;
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+typedef rt_uint16_t Elf64_Half;
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+typedef rt_int16_t Elf64_SHalf;
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+typedef rt_uint64_t Elf64_Off;
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+typedef rt_int32_t Elf64_Sword;
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+typedef rt_uint32_t Elf64_Word;
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+typedef rt_uint64_t Elf64_Xword;
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+typedef rt_int64_t Elf64_Sxword;
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typedef rt_uint16_t Elf64_Section;
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/* e_ident[] magic number */
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@@ -86,24 +86,24 @@ typedef struct elfhdr
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header string table" entry offset */
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} Elf32_Ehdr;
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-
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-typedef struct elf64_hdr {
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- unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
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- Elf64_Half e_type; /* object file type */
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- Elf64_Half e_machine; /* machine */
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- Elf64_Word e_version; /* object file version */
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- Elf64_Addr e_entry; /* virtual entry point */
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- Elf64_Off e_phoff; /* program header table offset */
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- Elf64_Off e_shoff; /* section header table offset */
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- Elf64_Word e_flags; /* processor-specific flags */
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- Elf64_Half e_ehsize; /* ELF header size */
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- Elf64_Half e_phentsize; /* program header entry size */
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- Elf64_Half e_phnum; /* number of program header entries */
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- Elf64_Half e_shentsize; /* section header entry size */
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- Elf64_Half e_shnum; /* number of section header entries */
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- Elf64_Half e_shstrndx; /* section header table's "section
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+typedef struct elf64_hdr
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+{
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+ unsigned char e_ident[EI_NIDENT]; /* ELF Identification */
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+ Elf64_Half e_type; /* object file type */
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+ Elf64_Half e_machine; /* machine */
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+ Elf64_Word e_version; /* object file version */
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+ Elf64_Addr e_entry; /* virtual entry point */
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+ Elf64_Off e_phoff; /* program header table offset */
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+ Elf64_Off e_shoff; /* section header table offset */
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+ Elf64_Word e_flags; /* processor-specific flags */
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+ Elf64_Half e_ehsize; /* ELF header size */
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+ Elf64_Half e_phentsize; /* program header entry size */
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+ Elf64_Half e_phnum; /* number of program header entries */
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+ Elf64_Half e_shentsize; /* section header entry size */
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+ Elf64_Half e_shnum; /* number of section header entries */
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+ Elf64_Half e_shstrndx; /* section header table's "section
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header string table" entry offset */
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-} Elf64_Ehdr;
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+} Elf64_Ehdr;
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/* Section Header */
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typedef struct
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@@ -123,19 +123,18 @@ typedef struct
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typedef struct
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{
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- Elf64_Word sh_name; /* Section name (string tbl index) */
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- Elf64_Word sh_type; /* Section type */
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- Elf64_Xword sh_flags; /* Section flags */
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- Elf64_Addr sh_addr; /* Section virtual addr at execution */
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- Elf64_Off sh_offset; /* Section file offset */
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- Elf64_Xword sh_size; /* Section size in bytes */
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- Elf64_Word sh_link; /* Link to another section */
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- Elf64_Word sh_info; /* Additional section information */
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- Elf64_Xword sh_addralign; /* Section alignment */
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- Elf64_Xword sh_entsize; /* Entry size if section holds table */
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+ Elf64_Word sh_name; /* Section name (string tbl index) */
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+ Elf64_Word sh_type; /* Section type */
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+ Elf64_Xword sh_flags; /* Section flags */
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+ Elf64_Addr sh_addr; /* Section virtual addr at execution */
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+ Elf64_Off sh_offset; /* Section file offset */
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+ Elf64_Xword sh_size; /* Section size in bytes */
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+ Elf64_Word sh_link; /* Link to another section */
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+ Elf64_Word sh_info; /* Additional section information */
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+ Elf64_Xword sh_addralign; /* Section alignment */
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+ Elf64_Xword sh_entsize; /* Entry size if section holds table */
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} Elf64_Shdr;
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-
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/* Section names */
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#define ELF_BSS ".bss" /* uninitialized data */
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#define ELF_DATA ".data" /* initialized data */
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@@ -171,19 +170,16 @@ typedef struct elf32_sym
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Elf32_Half st_shndx; /* section header index */
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} Elf32_Sym;
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-
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typedef struct
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{
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- Elf64_Word st_name; /* Symbol name (string tbl index) */
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- unsigned char st_info; /* Symbol type and binding */
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- unsigned char st_other; /* Symbol visibility */
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- Elf64_Section st_shndx; /* Section index */
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- Elf64_Addr st_value; /* Symbol value */
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- Elf64_Xword st_size; /* Symbol size */
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+ Elf64_Word st_name; /* Symbol name (string tbl index) */
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+ unsigned char st_info; /* Symbol type and binding */
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+ unsigned char st_other; /* Symbol visibility */
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+ Elf64_Section st_shndx; /* Section index */
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+ Elf64_Addr st_value; /* Symbol value */
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+ Elf64_Xword st_size; /* Symbol size */
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} Elf64_Sym;
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-
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-
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#define STB_LOCAL 0 /* BIND */
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#define STB_GLOBAL 1
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#define STB_WEAK 2
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@@ -244,8 +240,6 @@ typedef struct
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#define ELF32_R_TYPE(i) ((unsigned char) (i))
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#define ELF32_R_INFO(s,t) (((s) << 8) + (unsigned char)(t))
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-
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-
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#define ELF64_R_SYM(i) ((i) >> 32)
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#define ELF64_R_TYPE(i) ((i) & 0xffffffff)
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#define ELF64_R_INFO(sym,type) ((((Elf64_Xword) (sym)) << 32) + (type))
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@@ -296,7 +290,6 @@ typedef struct
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Elf32_Word p_align; /* memory alignment */
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} Elf32_Phdr;
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-
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typedef struct
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{
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Elf64_Word p_type; /* Segment type */
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@@ -309,10 +302,6 @@ typedef struct
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Elf64_Xword p_align; /* Segment alignment */
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} Elf64_Phdr;
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-
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-
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-
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-
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/* p_type */
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#define PT_NULL 0
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#define PT_LOAD 1
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@@ -384,10 +373,9 @@ typedef Elf64_Sym Elf_Sym;
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typedef Elf64_Rela Elf_Rel;
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typedef Elf64_Addr Elf_Addr;
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#endif
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-int dlmodule_relocate(struct rt_dlmodule *module, Elf_Rel *rel, Elf_Addr sym_val);
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-rt_err_t dlmodule_load_shared_object(struct rt_dlmodule* module, void *module_ptr);
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-rt_err_t dlmodule_load_relocated_object(struct rt_dlmodule* module, void *module_ptr);
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-
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+int dlmodule_relocate(struct rt_dlmodule *module, Elf_Rel *rel, Elf_Addr sym_val);
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+rt_err_t dlmodule_load_shared_object(struct rt_dlmodule *module, void *module_ptr);
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+rt_err_t dlmodule_load_relocated_object(struct rt_dlmodule *module, void *module_ptr);
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#endif
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BernardXiong