Gcc ELF共享库：重新定位偏移量超出范围
有一个软件包Gcc ELF共享库：重新定位偏移量超出范围,gcc,shared-libraries,ld,binutils,Gcc,Shared Libraries,Ld,Binutils,有一个软件包elfutils，其中包括一个名为eu-elflint的程序，用于检查ELF二进制文件（就像C的lint一样，因此得名） 出于好奇，我用这个工具检查了我们自己的共享库，发现了很多问题，例如： eu-elflint libUtils.so section [ 2] '.dynsym': _DYNAMIC symbol size 0 does not match dynamic segment size 248 section [ 2] '.dynsym': _GLOBAL_OFFSE
elfutilseu-elflintlinteu-elflint libUtils.so
section [ 2] '.dynsym': _DYNAMIC symbol size 0 does not match dynamic segment size 248
section [ 2] '.dynsym': _GLOBAL_OFFSET_TABLE_ symbol size 0 does not match .got.plt section size 3076
section [ 8] '.rel.plt': relocation 0: offset out of bounds
section [ 8] '.rel.plt': relocation 1: offset out of bounds
...
section [ 8] '.rel.plt': relocation 765: offset out of bounds
int foo(int a) {
return a + 1;
}
// gcc -shared -fPIC -o libfoo.so foo.c
eu-elflint libfoo.so
section [ 9] '.rel.plt': relocation 0: offset out of bounds
section [ 9] '.rel.plt': relocation 1: offset out of bounds
section [23] '.comment' has wrong flags: expected none, is MERGE|STRINGS
section [25] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol size 0 does not match .got.plt section size 20
section [25] '.symtab': _DYNAMIC symbol size 0 does not match dynamic segment size 200