Re: Attempt to update ispc

[Florian Weimer]

* Luya Tshimbalanga:

>  I managed to resolve some issue but now the problem is related to
> the
>  hardened part:
>
>  https://koji.fedoraproject.org/koji/taskinfo?taskID=32324093
>
>  Here is the following lines for the failure:
>
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_sse2.o: relocation R_X86_64_32
>  against symbol
>
> `RenderTile___uniuniREFs_5B_unInputHeader_5D_REFs_5B_unInputDataArrays_5D_uniun_3C_unT_3E_un_3C_unT_3E_un_3C_unT_3E_sse2'
>  can not be used when making a PIE object; recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_sse4.o: relocation R_X86_64_32S
>  against `.rodata.cst16' can not be used when making a PIE object;
>  recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_avx.o: relocation R_X86_64_32
>  against symbol
>
> `RenderTile___uniuniREFs_5B_unInputHeader_5D_REFs_5B_unInputDataArrays_5D_uniun_3C_unT_3E_un_3C_unT_3E_un_3C_unT_3E_avx'
>  can not be used when making a PIE object; recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_avx2.o: relocation R_X86_64_32S
>  against `.rodata.cst32' can not be used when making a PIE object;
>  recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_avx512knl.o: relocation
>  R_X86_64_32 against symbol
>
> `RenderTile___uniuniREFs_5B_unInputHeader_5D_REFs_5B_unInputDataArrays_5D_uniun_3C_unT_3E_un_3C_unT_3E_un_3C_unT_3E_avx512knl'
>  can not be used when making a PIE object; recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: kernels_ispc_avx512skx.o: relocation
>  R_X86_64_32 against symbol
>
> `RenderTile___uniuniREFs_5B_unInputHeader_5D_REFs_5B_unInputDataArrays_5D_uniun_3C_unT_3E_un_3C_unT_3E_un_3C_unT_3E_avx512skx'
>  can not be used when making a PIE object; recompile with -fPIC
>  BUILDSTDERR: /usr/bin/ld: final link failed: nonrepresentable section on
>  output
>  BUILDSTDERR: collect2: error: ld returned 1 exit status
>  BUILDSTDERR: make[2]: ***
>  [examples/deferred/CMakeFiles/deferred_shading.dir/build.make:204:
>  bin/deferred_shading] Error 1
>  BUILDSTDERR: make[1]: *** [CMakeFiles/Makefile2:370:
>  examples/deferred/CMakeFiles/deferred_shading.dir/all] Error 2
>  BUILDSTDERR: make: *** [Makefile:133: all] Error 2 
I tried to build with --pic, using the attached patch, but got this:

[ 68%] Generating perfbench_ispc.h, perfbench_ispc.o, perfbench_ispc_sse2.h,
perfbench_ispc_sse2.o, perfbench_ispc_sse4.h, perfbench_ispc_sse4.o, perfbench_ispc_avx.h,
perfbench_ispc_avx.o, perfbench_ispc_avx2.h, perfbench_ispc_avx2.o,
perfbench_ispc_avx512knl.h, perfbench_ispc_avx512knl.o, perfbench_ispc_avx512skx.h,
perfbench_ispc_avx512skx.o
cd /builddir/build/BUILD/ispc-1.10.0/examples/perfbench && ../../bin/ispc
/builddir/build/BUILD/ispc-1.10.0/examples/perfbench/perfbench.ispc --pic
--target=sse2-i32x4,sse4-i32x4,avx1-i32x8,avx2-i32x8,avx512knl-i32x16,avx512skx-i32x16
--arch=x86-64 -h /builddir/build/BUILD/ispc-1.10.0/examples/perfbench/perfbench_ispc.h -o
/builddir/build/BUILD/ispc-1.10.0/examples/perfbench/perfbench_ispc.o
make[2]: Leaving directory '/builddir/build/BUILD/ispc-1.10.0'
BUILDSTDERR: /builddir/build/BUILD/ispc-1.10.0/src/main.cpp(353): FATAL ERROR: Unhandled
signal sent to process; terminating.
BUILDSTDERR: ***
BUILDSTDERR: *** Please file a bug report at https://github.com/ispc/ispc/issues
BUILDSTDERR: *** (Including as much information as you can about how to reproduce this
error).
BUILDSTDERR: *** You have apparently encountered a bug in the compiler that we'd like
to fix!
BUILDSTDERR: ***
BUILDSTDERR: make[2]: *** [examples/perfbench/CMakeFiles/perfbench.dir/build.make:65:
examples/perfbench/perfbench_ispc.h] Aborted (core dumped)

This looks like something upstream needs to investigate. 8-(

Thanks,
Florian