Hi there,

I recently installed fpc-2.6.4 on my Wandboard-Quad for production. I have fpc from svn but I get an error when I try to build.

Compiling ARM Free Pascal Compiler...
make clean all OPT=-O- DEBUG=1 OS_TARGET=linux CPU_TARGET=armhf CPU_SOURCE=arm
make: -iVSPTPSOTO: Command not found
Makefile:215: *** The Makefile doesn't support target armhf-linux, please run fpcmake first. Stop.

Can someone help?

1) the error you get means that the "fpc" binary is not in your path. Building FPC always has been and always will be only supported with an existing, complete installation of the latest FPC release in your path
2) FPC 2.6.4 does not contain ARMHF support (except in an unofficial, and completely unsupported by us, Debian backport)
3) "ARM hard float" not a different kind of CPU compared to ARM. To build FPC for ARM hard-float using a non-ARMHF compiler, perform a make all for CPU_TARGET=ARM with OPT="-dARMHF"

Jonas

Thanks Jonas, I was able to get a bit further along in the build process.

make clean all OPT=-dARMHF DEBUG=1 OS_TARGET=linux CPU_TARGET=arm CPU_SOURCE=arm

Building crashes at compiling system.pp

as -o /Developer/FPC/rtl/units/arm-linux/dllprt0.o arm/dllprt0.as as -o /Developer/FPC/rtl/units/arm-linux/cprt0.o arm/cprt0.as as -o /Developer/FPC/rtl/units/arm-linux/gprt0.o arm/gprt0.as as -o /Developer/FPC/rtl/units/arm-linux/ucprt0.o arm/ucprt0.as /Developer/FPC/compiler/ppc1 -Ur -gl -Ur -Xs -O2 -n -Fi../inc -Fi../arm -Fi../unix -Fiarm -FE. -FU/Developer/FPC/rtl/units/arm-linux -dARMHF -darm -dDEBUG -dRELEASE -Us -Sg system.pp
flt_pack.inc(119,5) Error: Syntax error while parsing a conditional compiling expression
system.inc(1884,8) Warning: Implicit string type conversion from "RawByteString" to "UnicodeString"
system.pp(377) Fatal: There were 1 errors compiling module, stopping Makefile:3573: recipe for target 'system.ppu' failed make[7]: *** [system.ppu] Error 1
make[7]: Leaving directory '/Developer/FPC/rtl/linux' Makefile:1950: recipe for target 'linux_all' failed make[6]: *** [linux_all] Error 2
make[6]: Leaving directory '/Developer/FPC/rtl'
Makefile:4157: recipe for target 'rtl' failed
make[5]: *** [rtl] Error 2
make[5]: Leaving directory '/Developer/FPC/compiler' Makefile:4046: recipe for target 'next' failed
make[4]: *** [next] Error 2
make[4]: Leaving directory '/Developer/FPC/compiler' Makefile:4055: recipe for target 'ppc2' failed
make[3]: *** [ppc2] Error 2
make[3]: Leaving directory '/Developer/FPC/compiler' Makefile:4063: recipe for target 'cycle' failed
make[2]: *** [cycle] Error 2
make[2]: Leaving directory '/Developer/FPC/compiler' Makefile:2826: recipe for target 'compiler_cycle' failed make[1]: *** [compiler_cycle] Error 2
make[1]: Leaving directory '/Developer/FPC'
Makefile:2858: recipe for target 'build-stamp.arm-linux' failed make: *** [build-stamp.arm-linux] Error 2

I am using parameters suggested on this page (modified for armv7a):

http://michellcomputing.co.uk/blog/2014/05/freepascal-2-7-1-on-raspberry-pi/

OPT="-dREVINC -dFPC_ARMHF -CX -CpARMV7A -CfVFPV3_D16 -OpARMV7A -O2 -OoFASTMATH -XX -Xs"

as your error seems to be caused by some conditional parsing the extra defines above might help (or not .....)

Michael

Hi Michael,

I tried to use the options above to no avail. Thanks for the effort though.

Andrew Brunner wrote on Sun, 28 Jun 2015:

That suggests a miscompiled ppc1. You can try using OPT="-dARMHF -O-" for the initial bootstrap to avoid potential wrong optimisations by the 2.6.4 starting compiler. Unrelated to this, you should probably also specify the correct architecture and VFP version for your platform, similar to what Michael suggested (but not necessarily the same, as it depends on your CPU).

Jonas

I think I now remember having the same problem before, can you please try to build with "-O-" instead of -O2 ?

In the past the compiler threw an exception in system.pas, perhaps it now displays an error message.

Michael

At least for debian the values for Floating point should be OK for the Wandboard:

"Currently the Debian armhf port requires at least an ARMv7 CPU with Thumb-2 and VFP3D16." (https://wiki.debian.org/ArmHardFloatPort)

Michael

Michael Ring wrote

I think I now remember having the same problem before, can you please try to build with "-O-" instead of -O2 ?

I've had some success/progress with my Wandboard Quad Revision C. Thanks for all your help however there are still some issues.

When compiling FPC 2.6.4 bootstrap I determined that : -OpARMV71 is not a supported option.
-cfVFPV3 is not a supported option.

On make sourceinstall I determined that there is something wrong with the make process because nothing I do can get make sourceinstall to stop overriding the source in /usr/share/src/fpc-2.6.4 with my 3.1.1 source :-( <snip>
/bin/rm -f build-stamp.*
/bin/rm -f base.build-stamp.*
/usr/bin/install -m 755 -d /usr/share/src/fpc-2.6.4/fpc /bin/cp -Rfp /Developer/FPC/* /usr/share/src/fpc-2.6.4/fpc

The script should have shown /usr/share/src/fpc-3.1.1 etc...

This problem is only with building on Linux-arm. I've never had this issue in any other linux device.

Andrew Brunner wrote on Wed, 01 Jul 2015:

When compiling FPC 2.6.4 bootstrap I determined that : -OpARMV71 is not a supported option. -cfVFPV3 is not a supported option.

The correct parameter is -Cfvfpv3, with a capital C.

It will if either your default compiler is FPC 3.1.1, or if you specify an FPC 3.1.1 compiler via FPC=/path/to/3.1.1/version/of/ppcarm

Jonas