Re: ARM Updates
- Posted by jimcbrown (admin) Apr 10, 2013
- 2406 views
done:
jacques@efikamx:~/Téléchargements$ gcc -v Using built-in specs. Target: arm-linux-gnueabi Configured with: ../src/configure -v --with-pkgversion='Debian 4.4.5-8' --with-bugurl=file:///usr/share/doc/gcc-4.4/README.Bugs --enable-languages=c,c++,fortran,objc,obj-c++ --prefix=/usr --program-suffix=-4.4 --enable-shared --enable-multiarch --enable-linker-build-id --with-system-zlib --libexecdir=/usr/lib --without-included-gettext --enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.4 --libdir=/usr/lib --enable-nls --enable-clocale=gnu --enable-libstdcxx-debug --enable-objc-gc --disable-sjlj-exceptions --enable-checking=release --build=arm-linux-gnueabi --host=arm-linux-gnueabi --target=arm-linux-gnueabi Thread model: posix gcc version 4.4.5 (Debian 4.4.5-8) jacques@efikamx:~/Téléchargements$ gcc hello.c -ohello jacques@efikamx:~/Téléchargements$ readelf -A hello Attribute Section: aeabi File Attributes Tag_CPU_name: "ARM9TDMI" Tag_CPU_arch: v4T Tag_ARM_ISA_use: Yes Tag_THUMB_ISA_use: Thumb-1 Tag_ABI_PCS_wchar_t: 4 Tag_ABI_FP_denormal: Needed Tag_ABI_FP_exceptions: Needed Tag_ABI_FP_number_model: IEEE 754 Tag_ABI_align8_needed: Yes Tag_ABI_align8_preserved: Yes, except leaf SP Tag_ABI_enum_size: intno hardfload! but the i.MX515 has a FPU
It's a software issue as well - your libraries (libc and so on, if not the kernel itself) need to be built with hardfloat support on. You can't mix and match hardfloat and softfloat object files together.
(In addition to hardfloat and 100% software float emulation, there's also something called VFP. Urgh.)
So, if your distro is using all softfloat libraries, then the binaries that you build need to be the same.
what it give with eui for eui from eubins-armv6hf
jacques@efikamx:~/Téléchargements/eubin-armv6hf$ readelf -A eui Attribute Section: aeabi File Attributes Tag_CPU_name: "6" Tag_CPU_arch: v6 Tag_ARM_ISA_use: Yes Tag_THUMB_ISA_use: Thumb-1 Tag_VFP_arch: VFPv2 Tag_ABI_PCS_wchar_t: 4 Tag_ABI_FP_denormal: Needed Tag_ABI_FP_exceptions: Needed Tag_ABI_FP_number_model: IEEE 754 Tag_ABI_align8_needed: Yes Tag_ABI_align8_preserved: Yes, except leaf SP Tag_ABI_enum_size: int Tag_ABI_HardFP_use: SP and DP Tag_ABI_VFP_args: VFP registers Tag_CPU_unaligned_access: v6 Tag_DIV_use: Not allowed
What can I do from here?
Jacques
P.S. no need to answer I found the softfloat compiler in rpi tools directory and launched a cross-compile with it.
Thanks Ira for pointing me in the right direction.
Brilliant! That's good to know. Someone should probably add a EfikaMX Debian 4.4.5-8 specific note to the wiki about this.
