[yocto] SDK Problems for SuperH 4

[Martin Townsend]

On Thu, Oct 6, 2016 at 7:57 PM, Martin Townsend <mtownsend1973 at gmail.com> wrote:
> Hi,
>
> We have a poky sato distributions successfully built and running for
> our SuperH 4 processor board.  The problem is the SDK that is built
> when using -cpopulate_sdk doesn't.
>
> The simple Makefile:
> hellomake: HelloWorld.c
> $(CC) -o HelloWorld HelloWorld.c

Hit send before I had chance to finish :)

ignore the missing tab but when trying to compile (after sourcing the
SDK environment) I get
sh4-poky-linux-gcc  -ml -m4
--sysroot=/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux -o HelloWorld
HelloWorld.o
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find crt1.o: No such file or directory
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find crti.o: No such file or directory
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find crtbegin.o: No such file or directory
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find -lgcc
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find -lgcc_s
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find -lc
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find -lgcc
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find -lgcc_s
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find crtend.o: No such file or directory
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/real-ld:
cannot find crtn.o: No such file or directory

So I tried the compiler and sysroot from the build
CC=/ws/vms/vms-rsc-yocto-build/build_vms/tmp/sysroots/x86_64-linux/usr/bin/sh4-poky-linux/sh4-poky-linux-gcc
SYSROOT=/ws/vms/vms-rsc-yocto-build/build_vms/tmp/sysroots/sh7760

hellomake: HelloWorld.c
$(CC) --sysroot=$(SYSROOT) -o HelloWorld HelloWorld.c

and it compiles fine.

So I ran $CC -print-search-dirs
install: /opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/
programs: =/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/libexec/sh4-poky-linux/gcc/sh4-poky-linux/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/bin/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/bin/
libraries: =/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/lib/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/lib/:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/lib/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/lib/:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/usr/lib/sh4-poky-linux/4.9.3/:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/usr/lib/

Then I checked that these files exist:
martin at martin-ubuntu-pconcepts:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux$
find $SDKTARGETSYSROOT -name "crt*"
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/crtn.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/crti.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/crt1.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/sh4-poky-linux/4.9.3/crtendS.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/sh4-poky-linux/4.9.3/crtend.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/sh4-poky-linux/4.9.3/crtbeginT.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/sh4-poky-linux/4.9.3/crtbeginS.o
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/usr/lib/sh4-poky-linux/4.9.3/crtbegin.o

Putting the library search directories on a separate line
martin at martin-ubuntu-pconcepts:/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux$
$CC -print-search-dirs | grep "^libraries:" | tr ':' '\n'
libraries
 =/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/lib/sh4-poky-linux/4.9.3/
/opt/sdk/vms/2.0.2/sysroots/x86_64-pokysdk-linux/usr/lib/sh4-poky-linux/gcc/sh4-poky-linux/4.9.3/../../../../../sh4-poky-linux/lib/
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/lib/sh4-poky-linux/4.9.3/
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/lib/
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/usr/lib/sh4-poky-linux/4.9.3/
/opt/sdk/vms/2.0.2/sysroots/sh4-poky-linux/m4/usr/lib/

So it looks like there is a spurious m4 is the library path.  Anyone
know why this has happened and how I can fix it before I wade into the
populate_sdk task.

We are using the Jethro branch and we have fixed the GCC version to
4.9.3 because this version works for SH4.

Many Thanks,
Martin.