On Fri, Oct 30, 2015 at 1:36 PM, Steve Ellcey <sellcey@xxxxxxxxxx> wrote: > On Thu, 2015-10-29 at 15:44 -0700, Sasikumar Kandhasamy wrote: >> >> >> Thanks Steve. I started building the gcc toolchain for mips64 for >> languages c,c++ and fortran. I got struck in making gcc supported >> libraries. > >> If you have the steps to build the toolchain for mips, Can you please >> share it. Below are the steps, i followed. > >> target=maps64-linux, > >> 1. configured and build bin-utils version 2.25 >> 2. configured and build bootstrap on gcc version 5.1.0 >> 3. configured and build glibc using above built target mips64 >> 4. again in gcc, was trying to build libgcc. > >> At step 4, i am getting an error related to libc.so. i.e., "libc.so: >> error adding symbols: File in wrong format" and I tried creating >> libc.so as below, > >> mips64-linux-gcc -nostdlib -nostartfiles -shared -x c /dev/null >> -o /fortran/cross/mips64-linux/lib/libc.so > >> Can you please let what is the error about. Thanks. >> >> Thanks & Regards >> Sasi > > I don't think you want to build 'bootstrap' in step 2 since this is a > cross compiler. I use 'all-gcc', though 'bootstrap' might have been > changed by configure/make to 'all-gcc' since it was a cross build. > > Also, make sure your path is set so that GCC can find the linker and > assembler that it needs. >> > I'm not sure where the libc.so message is coming from. One thing to > note is that the mips64-linux target is a multi-lib target that can > build o32, n32, and n64 objects (the three ABI's that MIPS supports). > If you only care about one ABI you might try adding'--disable-multilibs' > along with '--with-abi=n32' or '--with-abi=n64' depending on which ABI > you want to see if that helps. I have some build instructions and a > script at > > https://dmz-portal.mips.com/wiki/GCC_Build_Instructions > > That should be visible to you and you can try that build method if you > want. > > Steve Ellcey > > <shameless plug> You could always use crosstool-ng: http://crosstool-ng.org https://github.com/crosstool-ng/crosstool-ng Cheers, -Bryan
