Re: cross compiling EPICS Base fails

[Florian Feldbauer <florian.feldbauer85@googlemail.com>]

Hey Lukas,

I guess your definition of GNU_DIR is incorrect.
The EPICS builod system searches for the cross-compiler includes in
$GNU_DIR/include but the path you have given would be
$GNU_DIR/../../include

Comparing your setup with mine (I'm using crosstool-ng) the
correct setting should be
GNU_DIR = /opt/oecore-x86_64/sysroots/x86_64-angstromsdk-linux

Hope this helps.

  Florian

On 03/06/2015 01:40 PM, Lukas Böhm wrote:
> Hi,
>
> I am having some trouble while cross compiling EPICS Base for 
> linux-arm on my linux-x86_64 machine and my cross toolchain from 
> Openembedded.
> Build crashes at :
> *************
> ...
> make[3]: Verzeichnis 
> »/home/lb/src/EPICS_test/base-3.14.12.4/src/libCom/O.linux-x86_64« 
> wird verlassen
>     make -C O.linux-arm -f ../Makefile TOP=../../.. T_A=linux-arm install
>     make[3]: Verzeichnis 
> »/home/lb/src/EPICS_test/base-3.14.12.4/src/libCom/O.linux-arm« wird 
> betreten
>
>     /opt/oecore-x86_64/sysroots/x86_64-angstromsdk-linux/usr/bin/arm-angstrom-linux-gnueabi/bin/arm-angstrom-linux-gnueabi-gcc 
> -c  -D_POSIX_C_SOURCE=199506L -D_POSIX_THREADS 
> -D_XOPEN_SOURCE=500            -DUNIX  -D_BSD_SOURCE -Dlinux 
> -D_REENTRANT   -O3 -g   -Wall          -fPIC -MMD -I. -I../O.Common 
> -I. -I../../../src/libCom/osi/os/Linux 
> -I../../../src/libCom/osi/os/posix 
> -I../../../src/libCom/osi/os/default -I.. 
> -I../../../src/libCom/bucketLib -I../../../src/libCom/ring 
> -I../../../src/libCom/calc -I../../../src/libCom/cvtFast 
> -I../../../src/libCom/cppStd -I../../../src/libCom/cxxTemplates 
> -I../../../src/libCom/dbmf -I../../../src/libCom/ellLib 
> -I../../../src/libCom/env -I../../../src/libCom/error 
> -I../../../src/libCom/fdmgr -I../../../src/libCom/freeList 
> -I../../../src/libCom/gpHash -I../../../src/libCom/iocsh 
> -I../../../src/libCom/logClient -I../../../src/libCom/macLib 
> -I../../../src/libCom/misc -I../../../src/libCom/osi 
> -I../../../src/libCom/taskwd -I../../../src/libCom/ti
>
> mer -I.
> ./../../src/libCom/tsDefs -I../../../include/os/Linux 
> -I../../../include 
> -I/opt/oecore-x86_64/sysroots/x86_64-angstromsdk-linux/usr/bin/arm-angstrom-linux-gnueabi/arm-angstrom-linux-gnueabi/include 
> ../../../src/libCom/bucketLib/bucketLib.c
>
>
> ../../../src/libCom/bucketLib/bucketLib.c:19:19: fatal error: stdio.h: 
> No such file or directory
>  #include <stdio.h>
>                    ^
> ...
> ***********
>
> My configurations:
> Under configure dir I set in CONFIG_SITE file:
>     CROSS_COMPILER_TARGET_ARCHS=linux-arm
>     CROSS_COMPILER_HOST_ARCHS=linux-x86_64
>
> Under configure/os I copied CONFIG_SITE.linux-x86.linux-arm to 
> CONFIG_SITE.linux-x86_64.linux-arm
> and set there:
>     GNU_TARGET = arm-angstrom-linux-gnueabi
>     GNU_DIR = 
> /opt/oecore-x86_64/sysroots/x86_64-angstromsdk-linux/usr/bin/arm-angstrom-linux-gnueabi
>
> as this is the folder containing toolchain binaries as 
> arm-angstrom-linux-gnueabi-gcc and so on.
> Additionally I had to make a soft-link "bin" inside this directory 
> pointing to this directory for EPICS to find the binaries.
>
> The missing stdio.h is under 
> /opt/oecore-x86_64/sysroots/armv7at2hf-vfp-neon-angstrom-linux-gnueabi/usr/include 
> .
>
>
> Hopefully someone could help.
> Thanks


--
----------------------------------------
| Dr. Florian Feldbauer                |
|                                      |
| Helmholtz-Institut Mainz /           |
| Johannes Gutenberg-Universität Mainz |
| Johann-Joachim-Becher-Weg 36         |
| D-55128 Mainz                        |
|                                      |
| Office: SB1 / 00-321                 |
| Phone:  (+49)6131 / 39-29605         |
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