了解
readelf它的输出将帮助您了解
ELF文件的格式。请参考本文件。
就了解如何解释
readelf此链接的输出而言可能会有帮助。
关于您的问题2，此链接描述了细分。在该文档中搜索“各种节包含程序和控制信息：”以找到描述段名的区域。
该文档描述了以下部分：
各个部分包含程序和控制信息：
.bss This section holds uninitialized data that contributes to the program's memory image. By definition, the system initializes the data with zeros when the program begins to run. This section is of type SHT_NOBITS. The attribute types are SHF_ALLOC and SHF_WRITE. .comment This section holds version control information. This section is of type SHT_PROGBITS. No attribute types are used. .ctors This section holds initialized pointers to the C++ constructor functions. This section is of type SHT_PROGBITS. The attribute types are SHF_ALLOC and SHF_WRITE. .data This section holds initialized data that contribute to the program's memory image. This section is of type SHT_PROGBITS. The attribute types are SHF_ALLOC and SHF_WRITE. .data1 This section holds initialized data that contribute to the program's memory image. This section is of type SHT_PROGBITS. The attribute types are SHF_ALLOC and SHF_WRITE. .debug This section holds information for symbolic debugging. The contents are unspecified. This section is of type SHT_PROGBITS. No attribute types are used. .dtors This section holds initialized pointers to the C++ destructor functions. This section is of type SHT_PROGBITS. The attribute types are SHF_ALLOC and SHF_WRITE. .dynamic This section holds dynamic linking information. The section's attributes will include the SHF_ALLOC bit. Whether the SHF_WRITE bit is set is processor-specific. This section is of type SHT_DYNAMIC. See the attributes above. .dynstr This section holds strings needed for dynamic linking, most commonly the strings that represent the names associated with symbol table entries. This section is of type SHT_STRTAB. The attribute type used is SHF_ALLOC. .dynsym This section holds the dynamic linking symbol table. This section is of type SHT_DYNSYM. The attribute used is SHF_ALLOC. .fini This section holds executable instructions that contribute to the process termination pre. When a program exits normally the system arranges to execute the pre in this section. This section is of type SHT_PROGBITS. The attributes used are SHF_ALLOC and SHF_EXECINSTR. .gnu.version This section holds the version symbol table, an array of ElfN_Half elements. This section is of type SHT_GNU_versym. The attribute type used is SHF_ALLOC. .gnu.version_d This section holds the version symbol definitions, a table of ElfN_Verdef structures. This section is of type SHT_GNU_verdef. The attribute type used is SHF_ALLOC. .gnu.version_r This section holds the version symbol needed elements, a table of ElfN_Verneed structures. This section is of type SHT_GNU_versym. The attribute type used is SHF_ALLOC. .got This section holds the global offset table. This section is of type SHT_PROGBITS. The attributes are processor specific. .hash This section holds a symbol hash table. This section is of type SHT_HASH. The attribute used is SHF_ALLOC. .init This section holds executable instructions that contribute to the process initialization pre. When a program starts to run the system arranges to execute the pre in this section before calling the main program entry point. This section is of type SHT_PROGBITS. The attributes used are SHF_ALLOC and SHF_EXECINSTR. .interp This section holds the pathname of a program interpreter. If the file has a loadable segment that includes the section, the section's attributes will include the SHF_ALLOC bit. Otherwise, that bit will be off. This section is of type SHT_PROGBITS. .line This section holds line number information for symbolic debugging, which describes the correspondence between the program source and the machine pre. The contents are unspecified. This section is of type SHT_PROGBITS. No attribute types are used. .note This section holds information in the "Note Section" format. This section is of type SHT_NOTE. No attribute types are used. OpenBSD native executables usually contain a .note.openbsd.ident section to identify themselves, for the kernel to bypass any compatibility ELF binary emulation tests when loading the file. .note.GNU-stack This section is used in Linux object files for declaring stack attributes. This section is of type SHT_PROGBITS. The only attribute used is SHF_EXECINSTR. This indicates to the GNU linker that the object file requires an executable stack. .plt This section holds the procedure linkage table. This section is of type SHT_PROGBITS. The attributes are processor specific. .relNAME This section holds relocation information as described below. If the file has a loadable segment that includes relocation, the section's attributes will include the SHF_ALLOC bit. Otherwise the bit will be off. By convention, "NAME" is supplied by the section to which the relocations apply. Thus a relocation section for .text normally would have the name .rel.text. This section is of type SHT_REL. .relaNAME This section holds relocation information as described below. If the file has a loadable segment that includes relocation, the section's attributes will include the SHF_ALLOC bit. Otherwise the bit will be off. By convention, "NAME" is supplied by the section to which the relocations apply. Thus a relocation section for .text normally would have the name .rela.text. This section is of type SHT_RELA. .rodata This section holds read-only data that typically contributes to a nonwritable segment in the process image. This section is of type SHT_PROGBITS. The attribute used is SHF_ALLOC. .rodata1 This section holds read-only data that typically contributes to a nonwritable segment in the process image. This section is of type SHT_PROGBITS. The attribute used is SHF_ALLOC. .shstrtab This section holds section names. This section is of type SHT_STRTAB. No attribute types are used. .strtab This section holds strings, most commonly the strings that represent the names associated with symbol table entries. If the file has a loadable segment that includes the symbol string table, the section's attributes will include the SHF_ALLOC bit. Otherwise the bit will be off. This section is of type SHT_STRTAB. .symtab This section holds a symbol table. If the file has a loadable segment that includes the symbol table, the section's attributes will include the SHF_ALLOC bit. Otherwise the bit will be off. This section is of type SHT_SYMTAB. .text This section holds the "text", or executable instructions, of a program. This section is of type SHT_PROGBITS. The attributes used are SHF_ALLOC and SHF_EXECINSTR.
