[okl4-developer] OKL4 3.0 is here!

[Alexandre Courbot]

> OKL4 supports ARM, MIPS, x86 and XScale.
> OKL4 3.0 has been published first for ARM.  x86 is scheduled according to
> customer priority.

Thanks for your reply. I have tried to follow the hello world tutorial
using the SDK and toolchain provided on the website as indicated, but
it fails as soon as I type make:

$ make
make -C hello KERNEL=micro BUILD=debug
make[1]: Entering directory `/home/gnurou/Work/L4/testokl4/singlecell/hello'
cp hello.xml.in build.micro-debug/bin/hello.xml
arm-unknown-linux-gnueabi-gcc -O2 --std=gnu99 -Wall
-Wstrict-prototypes -Wmissing-prototypes -Wnested-externs
-Wmissing-declarations -Wredundant-decls -Wundef -Wpointer-arith
-Wno-nonnull -Werror -march=armv5te -mtune=xscale -O2 -nostdlib
-nostdinc -g  -Iinclude
-I/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/include  -c
src/hello.c -o build.micro-debug/src/hello.o
make[1]: arm-unknown-linux-gnueabi-gcc: Command not found

Indeed, the name of the provided compiler is arm-linux-gcc. So I
redefined the TOOLPREFIX environment variable to match, but then link
fails:

arm-linux-ld -o build.micro-debug/bin/hello -Ttext=0x80000000
-L/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/crt0.o
build.micro-debug/src/hello.o --start-group
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/libc.a
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/libokl4.a
/opt/nicta/tools/gcc-3.4.4-glibc-2.3.5/arm-linux/bin/../lib/gcc/arm-linux/3.4.4/libgcc.a
--end-group
arm-linux-ld: ERROR: build.micro-debug/src/hello.o is compiled for
EABI version 0, whereas build.micro-debug/bin/hello is compiled for
version 4
arm-linux-ld: failed to merge target specific data of file
build.micro-debug/src/hello.o
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/crt0.o(.text+0xc):
In function `_start':
: internal error: unsupported relocation error
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/crt0.o(.text+0x20):
In function `_thread_start':
: internal error: unsupported relocation error
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/libc.a(sys_init.o)(.text+0xc):
In function `__sys_thread_entry':
libs/c/src/sys-okl4/sys_init.c:78: internal error: unsupported
relocation error
/home/gnurou/Work/L4/sdk//okl4/xscale/micro-debug/libs/libc.a(sys_init.o)(.text+0x10):libs/c/src/sys-okl4/sys_init.c:78:
internal error: unsupported relocation error

Followed by hundreds of other "unsupported relocation error". I am
still a newbie when it comes to ARM, so this is quite an unusual
message to me. Anyway, I suppose you wanted to know that following the
instructions of the tutorial leads to a failure to compile (unless I
did something wrong, but I double-checked everything). I'd be glad to
get any pointer as to how to go through the compilation process
successfully though, as we plan to move our project to OKL4 3.0.

Thanks,
Alex.