在Linux上使用bfd.h编译错误

Question

我是Linux编程的新手,我正在尝试使用BFD库.这是我正在尝试编译的当前代码:

#include <bfd.h>
#include <stdlib.h>

bfd *abfd;

int main() {
  bfd_init();
  abfd = bfd_openr("/home/mike/Desktop/testFunc/testProg", NULL);
  return 0;
}

我使用以下命令行进行编译:

gcc readInfo.c /usr/lib/libbfd.a -o readInfo

我收到以下错误:

gcc readInfo.c /usr/lib/libbfd.a -o readInfo /usr/lib/libbfd.a(elflink.o):in function elf_link_add_object_symbols': /build/buildd/binutils-2.21.53.20110810/builddir-single/bfd/../../bfd/elflink.c:4605: undefined reference toobjalloc_free_block'/build/buildd/binutils-2.21.53.20110810/builddir-single/bfd/ ../../bfd/elflink.c:4892:对_sch_istable' /usr/lib/libbfd.a(elflink.o): In functionbfd_elf_size_dynamic_sections'的未定义引用:/ build/buildd/binutils-2.21.53.20110810/builddir -single/bfd /../../bfd /elflink.c:6048 :对lbasename' undefined reference to_sch_istable的未定义引用'collect2:ld返回1退出状态make:* [all]错误1

还有很多错误,您可以在这里查看.我确信这有一个简单的解释,但它让我难过了一段时间.

总结到目前为止我所做的事情:

• 安装了Ubuntu的干净版本
• 安装了binutils-dev包

Answer 1

如果你使用ubuntu install binutils-dev

sudo apt-get install binutils-dev

Answer 2

您需要静态链接您的程序吗？

如果您动态链接它，它会编译并运行而不会出现错误：

gcc readInfo.c -o readInfo -lbfd

我在尝试使其静态链接时遇到了一个新问题：

$ gcc readInfo.c /usr/lib/libbfd.a /usr/lib/x86_64-linux-gnu/libc.a -o readInfo
/usr/bin/ld.bfd.real: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality
    in `/usr/lib/x86_64-linux-gnu/libc.a(strcmp.o)' can not be used when making
    an executable; recompile with -fPIE and relink with -pie
collect2: ld returned 1 exit status
$ gcc -fPIE readInfo.c /usr/lib/libbfd.a /usr/lib/x86_64-linux-gnu/libc.a \
    -o readInfo
/usr/bin/ld.bfd.real: dynamic STT_GNU_IFUNC symbol `strcmp' with pointer equality
    in `/usr/lib/x86_64-linux-gnu/libc.a(strcmp.o)' can not be used when making
    an executable; recompile with -fPIE and relink with -pie
collect2: ld returned 1 exit status
$ gcc -fPIE -pie readInfo.c /usr/lib/libbfd.a /usr/lib/x86_64-linux-gnu/libc.a \
  -o readInfo
/usr/bin/ld.bfd.real: /usr/lib/libbfd.a(opncls.o): relocation R_X86_64_32S
    against `.rodata' can not be used when making a shared object; recompile with
    -fPIC
/usr/lib/libbfd.a: could not read symbols: Bad value
collect2: ld returned 1 exit status
$ gcc -fPIC -fPIE -pie readInfo.c /usr/lib/libbfd.a \
  /usr/lib/x86_64-linux-gnu/libc.a -o readInfo
/usr/bin/ld.bfd.real: /usr/lib/libbfd.a(opncls.o): relocation R_X86_64_32S
    against `.rodata' can not be used when making a shared object; recompile with
    -fPIC
/usr/lib/libbfd.a: could not read symbols: Bad value
collect2: ld returned 1 exit status