Yes,
cc (Ubuntu 7.5.0-3ubuntu1~18.04) 7.5.0
On April 30, 2020 11:29:07 PM GMT+03:00, Than McIntosh <th...@google.com> wrote:
>>>/usr/bin/ld.gold: error:
>CMakeFiles/cmTC_81c99.dir/CheckSymbolExists.c.o:
>failed to match split-stack sequence at section 4 offset 0
>
>OK, now I think we're getting somewhere, this looks suspicious. For
>reference, could you please send me the output of "/usr/bin/cc
>--version"?
>
>Thanks, Than
>
>
>
>
>On Thu, Apr 30, 2020 at 4:26 PM Martins Eglitis <mart...@sitilge.id.lv>
>wrote:
>
>> Hi,
>>
>> There was something related in "CMakeError.log":
>>
>> Determining if the mmap exist failed with the following output:
>> Change Dir: /home/gopher/workarea/build-debug/CMakeFiles/CMakeTmp
>>
>> Run Build Command(s):/usr/bin/ninja cmTC_81c99 && [1/2] Building C
>object CMakeFiles/cmTC_81c99.dir/CheckSymbolExists.c.o
>> CheckSymbolExists.c: In function 'main':
>> CheckSymbolExists.c:8:11: warning: ISO C forbids conversion of
>function pointer to object pointer type [-Wpedantic]
>> 8 | return ((int*)(&mmap))[argc];
>> | ^
>> [2/2] Linking C executable cmTC_81c99
>> FAILED: cmTC_81c99
>> : && /usr/bin/cc -fPIC -Werror=date-time -Wall -Wextra
>-Wno-unused-parameter -Wwrite-strings -Wno-missing-field-initializers
>-pedantic -Wno-long-long -Wimplicit-fallthrough -Wno-comment
>-fdiagnostics-color -ffunction-sections -fdata-sections -fuse-ld=gold
>-fsplit-stack -fuse-ld=gold -Wl,-allow-shlib-undefined
>CMakeFiles/cmTC_81c99.dir/CheckSymbolExists.c.o -o cmTC_81c99 -lm &&
>:
>> /usr/bin/ld.gold: error:
>CMakeFiles/cmTC_81c99.dir/CheckSymbolExists.c.o: failed to match
>split-stack sequence at section 4 offset 0
>> collect2: error: ld returned 1 exit status
>> ninja: build stopped: subcommand failed.
>>
>>
>> File
>/home/gopher/workarea/build-debug/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
>> /* */
>> #include <sys/mman.h>
>>
>> int main(int argc, char** argv)
>> {
>> (void)argv;
>> #ifndef mmap
>> return ((int*)(&mmap))[argc];
>> #else
>> (void)argc;
>> return 0;
>> #endif
>> }
>>
>> On 2020-04-30 20:32, Than McIntosh wrote:
>>
>> Thanks for the email.
>>
>> Sorry for the delay in responding, this is a very busy time right now
>for
>> our team (release freeze is happening at the end of this week).
>>
>> Just in general, the gollvm build procedure uses "cmake", and as part
>of
>> this process cmake is running various tests to make sure that the C
>> compiler you're using works properly, and to detect whether the
>system you
>> are building on has the right header files, libraries, etc.
>>
>> Of particular concern is the cmake check for "mmap"-- the mmap()
>routine
>> is definitely available on Ubuntu, so it's puzzling that cmake thinks
>it
>> isn't available.
>>
>> One thing you might do: after the build fails, try looking at the
>debris
>> in the CMakeFiles dir:
>>
>> $ ls CMakeFiles
>> 3.13.4 cmake.check_cache feature_tests.bin src.c
>> 3.15.4 CMakeError.log feature_tests.c
>> TargetDirectories.txt
>> CheckIncludeFiles CMakeOutput.log feature_tests.cxx test.o
>> CheckTypeSize CMakeTmp simple.cc
>>
>> In that dir, look at "CMakeOutput.log" for the place where this test
>is
>> run:
>>
>> Look for a section that looks like this:
>>
>> Determining if the mmap exist passed with the following output:
>> Change Dir:
>/tmp/llvm-project/build-relwithdbg/CMakeFiles/CMakeTmp
>>
>> Run Build Command:"/usr/local/google/home/thanm/bin/ninja"
>"cmTC_feb45"
>> [1/2] Building C object
>CMakeFiles/cmTC_feb45.dir/CheckSymbolExists.c.o
>> CheckSymbolExists.c: In function ‘main’:
>> CheckSymbolExists.c:8:11: warning: ISO C forbids conversion of
>> function pointer to object pointer type [-Wpedantic]
>> return ((int*)(&mmap))[argc];
>> ^
>> [2/2] Linking C executable cmTC_feb45
>>
>> File
>>
>/tmp/llvm-project/build-relwithdbg/CMakeFiles/CMakeTmp/CheckSymbolExists.c:
>> /* */
>> #include <sys/mman.h>
>>
>> int main(int argc, char** argv)
>> {
>> (void)argv;
>> #ifndef mmap
>> return ((int*)(&mmap))[argc];
>> #else
>> (void)argc;
>> return 0;
>> #endif
>> }
>>
>> Are there any clues there perhaps?
>>
>> Thanks, Than
>>
>>
>> On Thu, Apr 30, 2020 at 1:05 PM <siti...@gmail.com> wrote:
>>
>>> Hi,
>>>
>>> I initially opened an issue, but was suggested to post to the
>mailing
>>> list instead: https://github.com/golang/go/issues/38728
>>>
>>> Build keeps failing when trying to build (Ubuntu Focal Fossa, amd64)
>from
>>> the latest commit to the master and following the build
>instructions. Has
>>> anyone succeeded to build gollvm recently? I am getting errors like
>this:
>>>
>>> -- Could NOT find LibXml2 (missing: LIBXML2_LIBRARY
>LIBXML2_INCLUDE_DIR)
>>> -- Native target architecture is X86
>>> -- Threads enabled.
>>> -- Doxygen disabled.
>>> -- Go bindings disabled.
>>> -- Ninja version: 1.10.0
>>> -- Could NOT find OCaml (missing: OCAMLFIND OCAML_VERSION
>OCAML_STDLIB_PATH)
>>> -- Could NOT find OCaml (missing: OCAMLFIND OCAML_VERSION
>OCAML_STDLIB_PATH)
>>> -- OCaml bindings disabled.
>>> -- LLVM host triple: x86_64-unknown-linux-gnu
>>> -- LLVM default target triple: x86_64-unknown-linux-gnu
>>> -- Building with -fPIC
>>> -- Constructing LLVMBuild project information
>>> -- Targeting AArch64
>>> -- Targeting AMDGPU
>>> -- Targeting ARM
>>> -- Targeting AVR
>>> -- Targeting BPF
>>> -- Targeting Hexagon
>>> -- Targeting Lanai
>>> -- Targeting Mips
>>> -- Targeting MSP430
>>> -- Targeting NVPTX
>>> -- Targeting PowerPC
>>> -- Targeting RISCV
>>> -- Targeting Sparc
>>> -- Targeting SystemZ
>>> -- Targeting WebAssembly
>>> -- Targeting X86
>>> -- Targeting XCore
>>> CMake Error at tools/gollvm/cmake/modules/AddGollvm.cmake:37
>(message):
>>> C compiler does not support -fsplit-stack
>>> Call Stack (most recent call first):
>>> tools/gollvm/CMakeLists.txt:21 (include)
>>>
>>>
>>> -- starting libgo configuration.
>>> CMake Error at tools/gollvm/cmake/modules/LibbacktraceUtils.cmake:19
>(message):
>>> Support for mmap() is required -- setup failed.
>>> Call Stack (most recent call first):
>>> tools/gollvm/libgo/CMakeLists.txt:45 (setup_libbacktrace)
>>>
>>>
>>> CMake Error at tools/gollvm/cmake/modules/LibffiUtils.cmake:27
>(message):
>>> Support for mmap() is required -- setup failed.
>>> Call Stack (most recent call first):
>>> tools/gollvm/libgo/CMakeLists.txt:49 (setup_libffi)
>>>
>>>
>>> -- Libgo: creating stdlib package targets
>>> -- Libgo: generating check targets
>>> -- libgo configuration complete.
>>> -- starting gotools configuration.
>>> -- gotools: generating check targets
>>> -- gotools configuration complete.
>>> -- Registering Bye as a pass plugin (static build: OFF)
>>> -- Failed to find LLVM FileCheck
>>> -- Version: 0.0.0
>>> -- Performing Test HAVE_GNU_POSIX_REGEX -- failed to compile
>>> -- Performing Test HAVE_POSIX_REGEX -- success
>>> -- Performing Test HAVE_STEADY_CLOCK -- success
>>> -- Configuring incomplete, errors occurred!
>>> See also
>"/home/gopher/workarea/build-debug/CMakeFiles/CMakeOutput.log".
>>> See also
>"/home/gopher/workarea/build-debug/CMakeFiles/CMakeError.log".
>>> ninja: error: loading 'build.ninja': No such file or directory
>>>
>>>
>>>
>>> --
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>>>
><https://groups.google.com/d/msgid/golang-nuts/cdb72cf2-2fe2-4f44-87fb-5cc2058dd58a%40googlegroups.com?utm_medium=email&utm_source=footer>
>>> .
>>>
>> --
>> Best regards,
>> Martins Eglitis
>>
>>
--
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