in reply to Re^5: Perl for ARMv7le
in thread Perl for ARMv7le

Yes, i get the following error: bash: ./generate_uudmap: cannot execute binary file: Exec format error

this means it was compiled for other architecture , in this case arm and i was trying to execute it on my local which is x86_64 ?? Its almost seems like the the whole source code needs to reside on the target system, which is my armv7le system in this case.Probably i need to figure out on how to move the native compiler to my target and perform the ./configure and make.

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Re^7: Perl for ARMv7le
by Corion (Patriarch) on Dec 19, 2016 at 21:02 UTC

    I found building natively much easier than cross-compiling.

    If in your case, the gen_uudmap file wants a binary native to your host, maybe you can compile that manually and put it in the correct place?

    Certainly, your cross-compilation instructions show how to handle this case?

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      Its seems like i was passing wrong parm values to the configure scripts, so it always considered as native build rather than the cross build. I made some changes to the parms and it was able to generate the make file for cross build

      ./configure -Dsysroot=/opt/qnx6 -Dcc=arm-unknown-nto-qnx6.6.0eabi-gcc --target-tools-prefix=arm-unknown-nto-qnx6.6.0eabi- --target=arm-unknown-nto-qnx6.6.0eabi --host=arm-unknown-nto-qnx6.6.0eabi -Dprefix=$HOME/localperl

      The make run fine for some time and end up having following error , where it says undefined references to certain functions

      chmod 644 "PPPort.bs"
      arm-unknown-nto-qnx6.6.0eabi-gcc --sysroot=/opt/qnx660/target/qnx6 -Wl,-E -o perl perlmain.o libperl.a
      written lib/Config.pod
      make2: Leaving directory `/home/cross/perl-5.24.0'
      libperl.a(pp.o): In function `Perl_pp_crypt': pp.c:(.text+0xffd8): warning: The 'crypt' function has been deprecated in libc. Link against liblogin for extended algorithm support.
      libperl.a(toke.o): In function `Perl_scan_num':
      toke.c:(.text+0x27b82): undefined reference to `pow'
      libperl.a(util.o): In function `Perl_drand48_r':
      util.c:(.text+0xa36e): undefined reference to `ldexp'
      libperl.a(sv.o): In function `S_hextract':
      sv.c:(.text+0x13ca0): undefined reference to `frexp'
      .
      .
      time64.c:(.text+0x3482): undefined reference to `floor'
      time64.c:(.text+0x349c): undefined reference to `ceil'
      time64.c:(.text+0x3522): undefined reference to `fmod'
      time64.c:(.text+0x359c): undefined reference to `floor'
      time64.c:(.text+0x37e6): undefined reference to `ceil'
      collect2: error: ld returned 1 exit status
      make: *** perl Error 1

      could it be because i might have referenced wrong path for libraries in -Dsysroot option?

[reply]

        It might be the wrong path or it might be that you need additional libraries for your environment. A good place to put them is in the hints/qnx.sh in your case. Maybe something like libm or some other math library is missing:

        toke.c:(.text+0x27b82): undefined reference to `pow'

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