I tried both hard and hardfp. They both returned 3 errors: C compiler cannot create executables Hello -1 Configure Problem in `/home/kevinthefire/workspace/Hello': Hello -1 Configure Problem make: *** No rule to make target `all'. Hello C/C++ Problem
2014-10-09 23:12 GMT-07:00 Nicolas Dechesne <nicolas.deche...@linaro.org>: > On Thu, Oct 9, 2014 at 10:27 PM, Wy kevinthesun <kevinthesu...@gmail.com> > wrote: > > It seems that Yocto 1.5.1 is built with hard float. However, the 1.51, > 1.6 > > and 1.62 toolchains are soft float. When I tried to set > > "-mfloat-abi=hardfp" in the compile option, the compiling process ran > into > > error. It seems these toolchains don't support hard float? How can I > solve > > this problem? > > > > These are my set in the environment file of 1.5.1 toolchain: > > export CC="arm-poky-linux-gnueabi-gcc -march=armv5te -marm > > -mthumb-interwork -mfloat-abi=hardfp > > --sysroot=/opt/poky/1.5.1/sysroots/armv5te-poky-linux-gnueabi" > > export CXX="arm-poky-linux-gnueabi-g++ -march=armv5te -marm > > -mthumb-interwork -mfloat-abi=hardfp > > --sysroot=/opt/poky/1.5.1/sysroots/armv5te-poky-linux-gnueabi" > > export CPP="arm-poky-linux-gnueabi-gcc -E -march=armv5te -marm > > -mthumb-interwork -mfloat-abi=hardfp > > --sysroot=/opt/poky/1.5.1/sysroots/armv5te-poky-linux-gnueabi" > > > > It ran into error. > > > maybe because the gcc documentation says -mfloat-abi=hard, not =hardfp ? > > in general, showing us the error you have is much preferred, otherwise > it's difficult to help if we don't really know what went wrong. > > cheers. >
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