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This topic contains 40 replies, has 2 voices, and was last updated by  rich 10 years, 1 month ago.

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  • #1510

    Trent

    Hi,

    I’m having a lot of trouble installing ellcc.
    Given a blank install of a VM of a linux distribution,

    What are the steps that will give me a working ellcc?
    Every attempt I have done so far has been plauged with compile errors and missing commands.

    #1520

    rich
    Keymaster

    Hi Trent,

    Could you post the errors you’re getting? I suspect your build is failing during the GNU part of the build because of some missing packages.

    -Rich

    #1525

    Trent

    As a base system I’m using an Ubuntu 13.10 amd64 minimal server install, on top of this I installed these packages through trial and error (missing commands or libraries in config scripts etc while running build)
    “pkg-config flex bison libncurses5-dev zlib1g-dev libglib2.0-dev autoconf libtool texinfo groff”

    However the error that it now gives me seems to be while compiling musl

    y.tab.c:1447:16: error: implicit declaration of function ‘yylex’ is invalid in C99
    [-Werror,-Wimplicit-function-declaration]
    yychar = YYLEX;
    ^
    y.tab.c:770:16: note: expanded from macro ‘YYLEX’
    # define YYLEX yylex (&yylval, yyInput)
    ^
    y.tab.c:2019:7: error: implicit declaration of function ‘yyerror’ is invalid in C99
    [-Werror,-Wimplicit-function-declaration]
    yyerror (param, yyInput, YY_(“syntax error”));
    ^
    src/bsd/parsedate.y:570:1: error: static declaration of ‘yyerror’ follows non-static declaration
    yyerror(struct dateinfo *param, const char **inp, const char *s)
    ^
    y.tab.c:2019:7: note: previous implicit declaration is here
    yyerror (param, yyInput, YY_(“syntax error”));
    ^
    src/bsd/parsedate.y:801:1: error: static declaration of ‘yylex’ follows non-static declaration
    yylex(YYSTYPE *yylval, const char **yyInput)
    ^
    y.tab.c:1447:16: note: previous implicit declaration is here
    yychar = YYLEX;
    ^
    y.tab.c:770:16: note: expanded from macro ‘YYLEX’
    # define YYLEX yylex (&yylval, yyInput)
    ^
    4 errors generated.
    make[1]: *** [src/bsd/parsedate.o] Error 1
    make[1]: Leaving directory `/home/build/ellcc/libecc/src/musl’
    make: *** [arm] Error 1

    #1526

    Gordon

    Hi, I also tried installing on Ubuntu 64 bit 13.10, and had to install g++ and zlibs (I found this installed zlibs:
    sudo apt-get –no-install-recommends -y build-dep qemu
    )

    However, after building for 3 hours it crashed: (Console tail follows)

    ecc: /home/gordon/Applications/ellcc/llvm/lib/Analysis/LoopInfo.cpp:355: void llvm::Loop::getUniqueExitBlocks(llvm::SmallVectorImpl<llvm::BasicBlock*>&) const: Assertion `hasDedicatedExits() && “getUniqueExitBlocks assumes the loop has canonical form exits!”‘ failed.
    0 ecc 0x00000000023d8b40 llvm::sys::PrintStackTrace(_IO_FILE*) + 32
    1 ecc 0x00000000023d8774
    2 libpthread.so.0 0x00002b460acf9bb0
    3 libc.so.6 0x00002b460bb88f77 gsignal + 55
    4 libc.so.6 0x00002b460bb8c5e8 abort + 328
    5 libc.so.6 0x00002b460bb81d43
    6 libc.so.6 0x00002b460bb81df2
    7 ecc 0x000000000217b1c1
    8 ecc 0x0000000001f845af
    9 ecc 0x000000000218548f llvm::LPPassManager::runOnFunction(llvm::Function&) + 1375
    10 ecc 0x00000000022c1963 llvm::FPPassManager::runOnFunction(llvm::Function&) + 643
    11 ecc 0x00000000020f7525
    12 ecc 0x00000000022c221b llvm::legacy::PassManagerImpl::run(llvm::Module&) + 795
    13 ecc 0x00000000009ccfcf clang::EmitBackendOutput(clang::DiagnosticsEngine&, clang::CodeGenOptions const&, clang::TargetOptions const&, clang::LangOptions const&, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::raw_ostream*) + 2751
    14 ecc 0x00000000009c82ce
    15 ecc 0x0000000000b4d84b clang::ParseAST(clang::Sema&, bool, bool) + 491
    16 ecc 0x00000000009c936d clang::CodeGenAction::ExecuteAction() + 77
    17 ecc 0x0000000000845419 clang::FrontendAction::Execute() + 249
    18 ecc 0x0000000000824a30 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 352
    19 ecc 0x000000000080da79 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1753
    20 ecc 0x00000000008072d8 cc1_main(char const**, char const**, char const*, void*) + 1256
    21 ecc 0x00000000007e8f06 main + 614
    22 libc.so.6 0x00002b460bb73de5 __libc_start_main + 245
    23 ecc 0x00000000008060b2
    Stack dump:
    0. Program arguments: /home/gordon/Applications/ellcc/bin/ecc -cc1 -triple armv7-ellcc-linux-eabi -S -disable-free -main-file-name hash.cpp -mrelocation-model static -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -target-cpu cortex-a8 -target-feature +soft-float-abi -target-feature +vfp2 -target-feature -neon -target-abi aapcs -mfloat-abi soft -target-linker-version 2.23.52.20130913 -coverage-file /tmp/hash-09bc46.s -resource-dir /home/gordon/Applications/ellcc/bin/../libecc -dependency-file hash.d -MT hash.o -sys-header-deps -MP -D _XOPEN_SOURCE=700 -D _GNU_SOURCE -D dl_info=Dl_info -I ../../../../src/c++/libcxxabi/include -O1 -std=c++11 -fdeprecated-macro -fno-dwarf-directory-asm -fdebug-compilation-dir /home/gordon/Applications/ellcc/libecc/obj/arm/linux/c++ -ferror-limit 19 -fmessage-length 110 -mstackrealign -fno-signed-char -fobjc-runtime=gcc -fcxx-exceptions -fexceptions -fdiagnostics-show-option -fcolor-diagnostics -vectorize-slp -o /tmp/hash-09bc46.s -x c++ ../../../../src/c++/libcxx/src/hash.cpp
    1. <eof> parser at end of file
    2. Per-module optimization passes
    3. Running pass ‘CallGraph Pass Manager’ on module ‘../../../../src/c++/libcxx/src/hash.cpp’.
    4. Running pass ‘Loop Pass Manager’ on function ‘@_ZNSt3__112__next_primeEj’
    5. Running pass ‘Loop Invariant Code Motion’ on basic block ‘%while.body’
    ecc: error: unable to execute command: Aborted (core dumped)
    ecc: error: clang frontend command failed due to signal (use -v to see invocation)
    clang version 3.5 (trunk)
    Target: arm-ellcc-linux-eabi
    Thread model: posix
    ecc: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script.
    ecc: note: diagnostic msg:
    ********************

    PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:
    Preprocessed source(s) and associated run script(s) are located at:
    ecc: note: diagnostic msg: /tmp/hash-b3b7c5.cpp
    ecc: note: diagnostic msg: /tmp/hash-b3b7c5.sh
    ecc: note: diagnostic msg:

    ********************
    make[4]: *** [hash.o] Error 254
    make[4]: Leaving directory `/home/gordon/Applications/ellcc/libecc/obj/arm/linux/c++’
    make[3]: *** [install] Error 1
    make[3]: Leaving directory `/home/gordon/Applications/ellcc/libecc/obj/arm/linux’
    make[2]: *** [install] Error 1
    make[2]: Leaving directory `/home/gordon/Applications/ellcc/libecc/obj/arm’
    make[1]: *** [install] Error 1
    make[1]: Leaving directory `/home/gordon/Applications/ellcc/libecc/obj’
    make: *** [other-libs] Error 2

    Not sure if I should start again (as I interrupted it during the first pass).

    Is there an environment ellcc is tested to build in? – Any virtual machine images that have it working? I’ve failed to make much progress with Mavericks, and latest Ubuntu while being more promising so far still doesn’t make it.

    #1527

    rich
    Keymaster

    Hi Gordon,

    That turned out to be a bug in LLVM that was subsequently fixed: http://llvm.org/bugs/show_bug.cgi?id=18643

    The fix has been incorporated in ELLCC.

    The good news is that you’re almost there. You are building the runtime libraries.

    You can get to a better place by

    cd ellcc
    # Get the latest sources/
    svn update
    # Build a new compiler.
    cd llvm-build
    make install
    # Build the libraries.
    cd ../libecc
    make
    

    -Rich

    #1533

    Gordon

    Hi Rich, getting closer, building cleanly on 12.04LTS to try to minimize any new unsupported wrinkles. I have the following message to contend with:

    make[2]: Entering directory `/home/gordon/Applications/ellcc/libecc/expat-build/arm/linux’
    /bin/bash ./libtool –silent –mode=compile /home/gordon/Applications/ellcc/libecc/../bin/ecc -target arm-ellcc-linux-eabi -march=armv7 -mfpu=vfp -mfloat-abi=softfp -no-integrated-as -g -Qunused-arguments -Wno-unneeded-internal-declaration -Wno-cast-align -Wno-incompatible-pointer-types -Wno-string-plus-int -Wno-pointer-sign -Wno-array-bounds -Wno-dangling-else -Wno-int-to-pointer-cast -I../../../src/expat/lib -I. -g -O2 -Wall -Wmissing-prototypes -Wstrict-prototypes -fexceptions -DHAVE_EXPAT_CONFIG_H -o lib/xmlparse.lo -c ../../../src/expat/lib/xmlparse.c
    ../../../src/expat/lib/xmlparse.c:83:2: error: memmove does not exist on this
    platform, nor is a substitute available
    #error memmove does not exist on this platform, nor is a substitute available
    ^
    1 error generated.
    make[2]: *** [lib/xmlparse.lo] Error 1
    make[2]: Leaving directory `/home/gordon/Applications/ellcc/libecc/expat-build/arm/linux’
    make[1]: *** [arm.expat.build] Error 2

    #1534

    rich
    Keymaster

    Hi Gordon,

    Update one more time:

    cd ellcc
    # Get the latest sources/
    svn update
    # Build the libraries.
    cd ../libecc
    make
    

    -Rich

    #1535

    Gordon

    made without error – progressing to next step – thx 🙂

    #1536

    Gordon

    Hi Rich, i built again, and it seemed to work ok,

    Then i went to make check, which mostly worked, but had the following errors, just wondering if these are lint in the tests, or there are some problems I still need to chase:

    ********************
    Testing Time: 109.24s
    ********************
    Failing Tests (9):
    LLVM :: BugPoint/crash-narrowfunctiontest.ll
    LLVM :: BugPoint/metadata.ll
    LLVM :: BugPoint/remove_arguments_test.ll
    LLVM :: Feature/load_module.ll
    LLVM :: LTO/cfi_endproc.ll
    LLVM :: LTO/current-section.ll
    LLVM :: LTO/linkonce_odr_func.ll
    LLVM :: LTO/runtime-library.ll
    LLVM :: LTO/triple-init.ll

    Expected Passes : 9611
    Expected Failures : 54
    Unsupported Tests : 35
    Unexpected Failures: 9
    make[2]: *** [check-local] Error 1
    make[2]: Leaving directory `/home/gordon/Applications/ellcc/llvm-build/test’
    make[1]: *** [check] Error 2
    make[1]: Leaving directory `/home/gordon/Applications/ellcc/llvm-build’
    make: *** [check] Error 1

    #1537

    rich
    Keymaster

    Hi Gordon,

    Those failures are expected for ELLCC. I am building everything statically currently and those tests dynamically load stuff. Don’t worry about them right now. Eventually we’ll build the shared libraries also.

    -Rich

    #1538

    Gordon

    Hi Rich, I get the feeling I’m almost there:
    I ran the hello world example:

    gordon@ubuntu:~/Applications/armwork$ vi hello.c
    gordon@ubuntu:~/Applications/armwork$ ../ellcc/bin/ecc -target mips-ellcc-linux hello.c
    gordon@ubuntu:~/Applications/armwork$ ../ellcc/bin/qemu-mips a.out
    gordon@ubuntu:~/Applications/armwork$ ../ellcc/bin/qemu-mips a.out
    hello world

    Success!! – BUT, then I ran the cross compiler for arm and got this error:

    gordon@ubuntu:~/Applications/armwork$ ../ellcc/bin/ecc -target arm-ellcc-linux helloarm.c
    /home/gordon/Applications/armwork/../ellcc/bin/ecc-ld: error: Source object /home/gordon/Applications/ellcc/bin/../libecc/lib/arm/linux/libc.a(__libc_start_main.o) has EABI version 0, but target a.out has EABI version 5
    /home/gordon/Applications/armwork/../ellcc/bin/ecc-ld: failed to merge target specific data of file /home/gordon/Applications/ellcc/bin/../libecc/lib/arm/linux/libc.a(__libc_start_main.o)

    Is there a build specific wrinkle for arm?

    Gordon

    #1539

    Gordon

    I’m trying to specify futher:

    gordon@ubuntu:~/Applications/armwork$ ../ellcc/bin/ecc -target arm-ellcc-linux -mcpu=arm926ej-s helloarm.c /home/gordon/Applications/armwork/../ellcc/bin/ecc-ld: error: Source object /home/gordon/Applications/ellcc/bin/../libecc/lib/arm/linux/libc.a(__libc_start_main.o) has EABI version 0, but target a.out has EABI version 5

    other command line options like -march and -meabi are either unused or not understood.

    I think the EABI version should be 5 for this processor, while the output format is EABI5, the linker believes the object file is EABI0.

    (My first real goal is an application to run on a BusyBox linux build running on a arm926ej-s.)

    #1540

    rich
    Keymaster

    Hi Gordon,

    This worked for me:

    ellcc/bin/ecc -target arm-ellcc-linux-eabi -march=armv7 -mfpu=vfp -mfloat-abi=softfp -no-integrated-as helloarm.c
    

    I’m not sure why the integrated assembler is failing with the latest LLVM. I’ll look into it.

    -Rich

    #1541

    Gordon

    I don’t understand what’s different:
    I tried you command:

    gordon@ubuntu:~/armwork$ ../ellcc/bin/ecc -target arm-ellcc-linux-eabi -march=armv7 -mfpu=vfp -mfloat-abi=softfp -no-integrated-as helloarm.c
    ecc: error: unable to execute command: Executable “arm-elf-as” doesn’t exist!
    ecc: error: assembler command failed with exit code 1 (use -v to see invocation)

    I cut off the last option and got:

    gordon@ubuntu:~/armwork$ ../ellcc/bin/ecc -target arm-ellcc-linux-eabi -march=armv7 -mfpu=vfp -mfloat-abi=softfp helloarm.c/home/gordon/armwork/../ellcc/bin/ecc-ld: error: Source object /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(__libc_start_main.o) has EABI version 0, but target a.out has EABI version 5
    /home/gordon/armwork/../ellcc/bin/ecc-ld: failed to merge target specific data of file /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(__libc_start_main.o)
    /home/gordon/armwork/../ellcc/bin/ecc-ld: error: Source object /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(exit.o) has EABI version 0, but target a.out has EABI version 5
    /home/gordon/armwork/../ellcc/bin/ecc-ld: failed to merge target specific data of file /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(exit.o)
    /home/gordon/armwork/../ellcc/bin/ecc-ld: error: Source object /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(libc.o) has EABI version 0, but target a.out has EABI version 5
    /home/gordon/armwork/../ellcc/bin/ecc-ld: failed to merge target specific data of file /home/gordon/ellcc/bin/../libecc/lib/arm/linux/libc.a(libc.o)
    /h

    Maybe I’m missing something…

    (What does “-no-integrated-as” do?)

    #1542

    rich
    Keymaster

    The -no-integrated-as flag tells the compiler not to use the built-in ARM assembler and to use the external (gnu) assembler instead.

    Your bin directory should look like this:

    [~] dev% ls ellcc/bin
    arm-elf-as*     ecc-nm*            llvm-link*          qemu-i386*
    bmake*          ecc-objcopy*       llvm-mc*            qemu-microblaze*
    bmake.old*      ecc-objdump*       llvm-mcmarkup*      qemu-mips*
    bugpoint*       ecc-ranlib*        llvm-nm*            qemu-mipsel*
    c-index-test*   ecc-readelf*       llvm-objdump*       qemu-ppc*
    clang-check*    ecc-size*          llvm-ranlib@        qemu-ppc64*
    clang-format*   ecc-strings*       llvm-readobj*       qemu-ppc64abi32*
    clang-tblgen*   ecc-strip*         llvm-rtdyld*        qemu-sparc*
    count*          FileCheck*         llvm-size*          qemu-system-arm*
    ecc*            i386-elf-as*       llvm-stress*        qemu-system-i386*
    ecc++@          llc*               llvm-symbolizer*    qemu-system-microblaze*
    ecc-addr2line*  lli*               llvm-tblgen*        qemu-system-mips*
    ecc-ar*         lli-child-target*  macho-dump*         qemu-system-mipsel*
    ecc-as*         llvm-ar*           microblaze-elf-as*  qemu-system-ppc*
    ecc-c++filt*    llvm-as*           mips-elf-as*        qemu-system-ppc64*
    ecc-elfedit*    llvm-bcanalyzer*   ncurses5-config*    qemu-system-sparc*
    ecc-embedspu*   llvm-config*       not*                qemu-system-x86_64*
    ecc-gdb*        llvm-cov*          opt*                qemu-x86_64*
    ecc-gprof*      llvm-diff*         ppc64-elf-as*       sparc-elf-as*
    ecc-ld*         llvm-dis*          ppc-elf-as*         x86_64-elf-as*
    ecc-ld.bfd*     llvm-dwarfdump*    qemu-arm*
    ecc-lit*        llvm-extract*      qemu-armeb*
    [~] dev% 
    

    If arm-elf-as isn’t there, try

    cd ~/ellcc/gnu/gnu-build/binutils
    make install
    

    Maybe the install didn’t occur because of your earlier build failures.

    -Rich

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