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Re: uSTL 1.4 update


Hi

Now I see that is not uSTL *1.4* issue. I tried to build 'bvt23' using a
prepatched version of uSTL (1.3) for synthetic target and I got that
stop too!

IMO, the linking error on sythetic cannot stop the uSTL updating. May be
we have to register the linking issue on Bugzilla instead?

John, can you confirm the linking issue with uSTL 1.3 for synthetic in
your Linux environment?

Sergei

On Mon, 28 Jun 2010, Sergei Gavrikov wrote:

On Mon, 28 Jun 2010, Sergei Gavrikov wrote:

On Mon, 28 Jun 2010, Simon Kallweit wrote:

On 06/28/2010 02:59 PM, John Dallaway wrote:
Hi Simon

Simon Kallweit wrote:

Here is the updated patch.

Added a generic implementation for the NextPow2, which is currently
suboptimal but mimics what the x86 implementation is doing. Also removed
the introduced change in include/ustl/uctrstrm.h so it should build
again with -fno-rtti.

Thank you. Tests are now building fine for M5272C3 but there's an error building for the synthetic target on my CentOS 5 (32-bit) box:

gcc -L/var/tmp/ustl-test/install/lib -Ttarget.ld -o /var/tmp/ustl-test/install/tests/language/cxx/ustl/current/tests/bvt23 tests/bvt23.o -g -nostdlib -Wl,--gc-sections -Wl,-static
tests/bvt23.o: In function `ustl::simd::fround<double, int>::operator()(double const&) const':
/var/tmp/ustl-test/install/include/ustl/simd.h:109: undefined reference to `lrint'
/var/tmp/ustl-test/install/include/ustl/simd.h:109: undefined reference to `lrint'
/var/tmp/ustl-test/install/include/ustl/simd.h:109: undefined reference to `lrint'
tests/bvt23.o: In function `ustl::simd::fround<float, int>::operator()(float const&) const':
/var/tmp/ustl-test/install/include/ustl/simd.h:107: undefined reference to `lrintf'
/var/tmp/ustl-test/install/include/ustl/simd.h:107: undefined reference to `lrintf'
/var/tmp/ustl-test/install/include/ustl/simd.h:107: undefined reference to `lrintf'
collect2: ld returned 1 exit status
make[1]: *** [/var/tmp/ustl-test/install/tests/language/cxx/ustl/current/tests/bvt23] Error 1
make[1]: Leaving directory `/var/tmp/ustl-test/language/cxx/ustl/current'
make: *** [tests] Error 2

Are you seeing this error?

It builds fine on my Ubuntu 10.04 LTS 32-bit :/

Hi Simon and John,

I built successfully uSTL tests using the Simon's latest patch for
arm7tdmi, i386 pc (i386-elf-gcc from eCosCentric) targets.

But, when I tried to build it for i386linux target I got the same error
likes John got.

Simon, I often run update-manager :-( and my stuff is

[snip]


I will try to investigate in the issue tonight.

Hi


I could not understand why a build with native GCC wanted 'lrint'
http://www.opengroup.org/onlinepubs/009695399/functions/lrint.html

I tried a hack (added libm.a to linker GROUP), and that helped...

$ sed -i 's,libgcc_eh.a,& libm.a,' install/lib/target.ld

$ grep GROUP install/lib/target.ld
GROUP(libtarget.a libgcc.a libsupc++.a libgcc_eh.a libm.a)

Well, this was brutal hack, but it was possible to build all tests on my
Linux box. Should we implement 'lrint' in eCos libm?

Sergei



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