Hi, Thank you for your detailed explanation. I will try your suggestions and let you know.
I used this cmake command. `cmake -DCMAKE_INSTALL_PREFIX=/my/install/dir -DCMAKE_BUILD_TYPE=Release -DLLVM_USE_LINKER=gold -G Ninja ../llvm-project/llvm` Then I used, `ninja gollvm`, and it was successful. Also, I used, `ninja install-gollvm`, but nothing happens. I have a couple of unclear points. As I know, llvm-goc is a tool that generates llvm IR for a go source code. If I run `go build test.go`, when does llvm-goc executable start to run? Does go build command replace its' existing compiler with llvm-goc? Thank you, Kavindu On Friday, 25 June 2021 at 19:52:16 UTC+5:30 th...@google.com wrote: > Hello again, > > Couple of things. > > First, it is important to keep in mind that the "llvm-goc" binary is not > intended to be used as a top level go compiler, in the same way that the > "gcc" or "clang" commands are used as top-level C/C++ compilers. The normal > use case is to use "go build" as opposed to invoking llvm-goc directly. > Just to recap: build the 'install-gollvm' ninja target (as described in > https://go.googlesource.com/gollvm/#installing), prepend the install dir > "bin" directory in your path, and then run "go build". > > It's also problematic to run llvm-goc directly out of the build area > instead of doing and install and using the copy in the install dir. For > example, if I do a build of llvm-goc in my LLVM build area, then invoke it > directly on a small Go program, this is what I see: > > $ ./bin/llvm-goc smallmain.go > /usr/bin/ld.gold: error: cannot find -lgobegin > /usr/bin/ld.gold: error: cannot find -lgo > /usr/lib/gcc/x86_64-linux-gnu/10/../../../x86_64-linux-gnu/crt1.o:function > _start: error: undefined reference to 'main' > <built-in>:1: error: undefined reference to > 'runtime.registerTypeDescriptors' > smallmain.go:4: error: undefined reference to 'runtime.printlock' > smallmain.go:4: error: undefined reference to 'runtime.printint' > smallmain.go:4: error: undefined reference to 'runtime.printnl' > smallmain.go:4: error: undefined reference to 'runtime.printunlock' > $ > > Here the compiler is unable to find the right runtime libraries. I'll see > if I can update the documentation to make this a little clearer. > > Regarding the crash you're seeing when building from > > LLVM: 43ff75f2c3feef64f9d73328230d34dac8832a91 > gollvm: 44a7a475cfd3b871b7a5a0941b8ab1ea9d489adc > gofrontend: be0d2cc2df9f98d967c242594838f86362dae2e7 > libbacktrace: 5a99ff7fed66b8ea8f09c9805c138524a7035ece > libffi: 737d4faa00d681b4c758057f67e1a02d813d01c2 > > > Sorry, but I can't reproduce your crash (I did another build using the > config above and it seems to work ok). What is the exact cmake command > you're using to set up your build area? > > You might also try this: in your LLVM build area, run "ninja > llvm-symbolizer" and then set > > export LLVM_SYMBOLIZER=${HERE}/bin/llvm-symbolizer > > then rerun the failing "llvm-goc" invocation, that might give you a better > stack trace. > > Thanks, Than > > > > On Thu, Jun 24, 2021 at 2:53 PM Kavindu Gimhan Zoysa <kavin...@gmail.com> > wrote: > >> I did not use any *go build* command. Sorry if I missed anything. These >> are the steps I followed. >> >> 1. Build gollvm referring to the official documentation. I followed the >> steps until https://go.googlesource.com/gollvm/#cmakeninja. >> 2. I was able to see the *llvm-goc *in the bin folder. I export the >> path using '*export >> LD_LIBRARY_PATH=<HOME>/build-debug/libgo/x86_64-unknown-linux-gnu' * >> command. >> 3. Then I tried to dump the llvm IR using '*../bin/llvm-goc -S test.go >> -dump-ir', *and it was successful. >> 4. Then I ran this command '*./bin/llvm-goc test.go'*. I got the above >> error. >> >> Did i miss anything? >> >> Thank you, >> Kavindu >> On Friday, 25 June 2021 at 00:01:41 UTC+5:30 th...@google.com wrote: >> >>> Could you please post the complete "go build" command? >>> >>> Thanks, Than >>> >>> On Thu, Jun 24, 2021 at 2:05 PM Kavindu Gimhan Zoysa <kavin...@gmail.com> >>> wrote: >>> >>>> Hi all, >>>> >>>> Still, I was unable to figure out the reason for the above error. >>>> Really appreciate your help. >>>> >>>> Thank you, >>>> Kavindu >>>> >>>> On Thursday, 24 June 2021 at 12:06:32 UTC+5:30 Kavindu Gimhan Zoysa >>>> wrote: >>>> >>>>> Hi all, >>>>> >>>>> I have build the gollvm and now I am trying to run it. So I run >>>>> follwing command against a simple go source code. I am getting below >>>>> error. >>>>> Really appreciate your input to solve this issue. >>>>> >>>>> command : >>>>> *./bin/llvm-goc test.go* >>>>> >>>>> error: >>>>> *llvm-goc: >>>>> /home/kavindu/GIT/llvm-project/llvm/tools/gollvm/driver/Action.cpp:51: >>>>> const char* gollvm::driver::Action::resultFileSuffix() const: Assertion >>>>> `false' failed.* >>>>> *../bin/llvm-goc(+0x2c46a3f)[0x55a113e42a3f]* >>>>> *../bin/llvm-goc(+0x2c46ad6)[0x55a113e42ad6]* >>>>> *../bin/llvm-goc(+0x2c44829)[0x55a113e40829]* >>>>> *../bin/llvm-goc(+0x2c46387)[0x55a113e42387]* >>>>> */lib/x86_64-linux-gnu/libpthread.so.0(+0x153c0)[0x7f67e0aad3c0]* >>>>> */lib/x86_64-linux-gnu/libc.so.6(gsignal+0xcb)[0x7f67e056818b]* >>>>> */lib/x86_64-linux-gnu/libc.so.6(abort+0x12b)[0x7f67e0547859]* >>>>> */lib/x86_64-linux-gnu/libc.so.6(+0x25729)[0x7f67e0547729]* >>>>> */lib/x86_64-linux-gnu/libc.so.6(+0x36f36)[0x7f67e0558f36]* >>>>> *../bin/llvm-goc(+0x827e69)[0x55a111a23e69]* >>>>> *../bin/llvm-goc(+0x8167d5)[0x55a111a127d5]* >>>>> *../bin/llvm-goc(+0x81db02)[0x55a111a19b02]* >>>>> *../bin/llvm-goc(+0x81ddfb)[0x55a111a19dfb]* >>>>> *../bin/llvm-goc(+0x811cb9)[0x55a111a0dcb9]* >>>>> >>>>> */lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf3)[0x7f67e05490b3]* >>>>> *../bin/llvm-goc(+0x81112e)[0x55a111a0d12e]* >>>>> *PLEASE submit a bug report to https://bugs.llvm.org/ >>>>> <https://bugs.llvm.org/> and include the crash backtrace.* >>>>> *Stack dump:* >>>>> *0. Program arguments: ../bin/llvm-goc test.go * >>>>> *Aborted (core dumped)* >>>>> >>>>> I have build gollvm using exact commits as shown here. >>>>> https://groups.google.com/g/golang-nuts/c/E770QGuKkpU/m/sJFuarbrBQAJ >>>>> >>>>> Thank you, >>>>> Kavindu >>>>> >>>> -- >>>> You received this message because you are subscribed to the Google >>>> Groups "golang-nuts" group. >>>> To unsubscribe from this group and stop receiving emails from it, send >>>> an email to golang-nuts...@googlegroups.com. >>>> To view this discussion on the web visit >>>> https://groups.google.com/d/msgid/golang-nuts/5a73b285-1252-400a-9259-20b2d7f68e5cn%40googlegroups.com >>>> >>>> <https://groups.google.com/d/msgid/golang-nuts/5a73b285-1252-400a-9259-20b2d7f68e5cn%40googlegroups.com?utm_medium=email&utm_source=footer> >>>> . >>>> >>> -- >> You received this message because you are subscribed to the Google Groups >> "golang-nuts" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to golang-nuts...@googlegroups.com. >> > To view this discussion on the web visit >> https://groups.google.com/d/msgid/golang-nuts/834df407-71f3-48d4-8d93-0f1e3c6ab714n%40googlegroups.com >> >> <https://groups.google.com/d/msgid/golang-nuts/834df407-71f3-48d4-8d93-0f1e3c6ab714n%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> > -- You received this message because you are subscribed to the Google Groups "golang-nuts" group. 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