1
votes

I'm following some code from here which is as follows:

The OP says that you can link with -lbfd -lopcodes.

However, for OpenSuSE I've found that for libbfd I need -lbfd -liberty -lz -ldl

When trying to compile, here is my results:

make

gcc ./main.c -lbfd -liberty -lz -ldl -lopcodes -g -o bfd_se

/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../lib64/libopcodes.a(arm-dis.o): In function `print_insn_neon':
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/arm-dis.c:2927: undefined reference to `floatformat_ieee_single_little'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/arm-dis.c:2927: undefined reference to `floatformat_to_double'
/usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../lib64/libopcodes.a(m68k-dis.o): In function `print_insn_arg':
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1103: undefined reference to `floatformat_m68881_ext'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1103: undefined reference to `floatformat_to_double'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1099: undefined reference to `floatformat_ieee_double_big'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1099: undefined reference to `floatformat_to_double'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1095: undefined reference to `floatformat_ieee_single_big'
/home/abuild/rpmbuild/BUILD/binutils-2.24/build-dir/opcodes/../../opcodes/m68k-dis.c:1095: undefined reference to `floatformat_to_double'
collect2: error: ld returned 1 exit status
Makefile:4: recipe for target 'bfd_se' failed
make: *** [bfd_se] Error 1

What other flags do I need to add to have this program compile? I see the error is related to different architectures, but I'm not trying to cross compile.

Thanks!

useful information: uname -a

Linux node 4.0.5-THS_on #1 SMP PREEMPT Thu Jun 18 16:37:06 CDT 2015 x86_64 x86_64 x86_64 GNU/Linux

gcc --version

gcc (SUSE Linux) 4.8.3 20140627 [gcc-4_8-branch revision 212064]
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

objdump --version (it uses libbfd and libopcodes)

GNU objdump (GNU Binutils; openSUSE 13.2) 2.24.0.20140403-6.1
Copyright 2013 Free Software Foundation, Inc.
This program is free software; you may redistribute it under the terms of
the GNU General Public License version 3 or (at your option) any later version.
This program has absolutely no warranty.
1

1 Answers

2
votes

Most of the time libbfd and libopcodes does not come as shared libraries in standard distributions (because they are not meant to be linked to). You must either link to the static libraries (libbfd.a and libopcodes.a) or recompile your distribution package and include the shared libraries in it (.so files).

So, to make it clear, try:

gcc ./main.c -liberty -lz -ldl -g -o bfd_se /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../lib64/libopcodes.a /usr/lib64/gcc/x86_64-suse-linux/4.8/../../../../lib64/libbfd.a