gollvm: Issues on Alpine linux. Tentative definition has type 'struct sigstack' that is never completed, in sysinfo.c

[advancedwebdeveloper]

Hello.

I was trying to check what is required to build gollvm on Alpine linux (it has musl instead of glibc).

Look like recently revealed set of minimal requirements allowed to build the configuration file (for Ninja).

heading to check whether Ninja would compile.
I wasn't able to find a pre-compiled Clang 11, for Alpine - but Clang 10 was available, which was pre-compiled against musl (C++ standard library has to rely on musl, instead of glibc - as I suppose).

Maybe I would recompile Clang 11, for Alpine distro - but not today.

Must admit that CMake worked much faster, compared to Ubuntu.

Comments would be much appreciated.

[advancedwebdeveloper]

[1/1084] Building sysinfo.o
FAILED: tools/gollvm/libgo/sysinfo.o
cd /home/oceanfish81/workarea/build_release/tools/gollvm/libgo && /usr/bin/clang -g3 -c -fno-eliminate-unused-debug-types /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/sysinfo.c -o /home/oceanfish81/workarea/build_release/tools/gollvm/libgo/sysinfo.o -D_GNU_SOURCE -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/home/oceanfish81/workarea/build_release/tools/gollvm/libgo -I/home/oceanfish81/workarea/build_release/tools/gollvm/libgo/runtime
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/sysinfo.c:462:1: error: tentative definition has type 'struct sigstack' that is never completed
SREF(sigstack);
^
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/sysinfo.c:374:32: note: expanded from macro 'SREF'
#define SREF(stag) struct stag stag ## ref
^
:52:1: note: expanded from here
sigstackref
^
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/sysinfo.c:462:6: note: forward declaration of 'struct sigstack'
SREF(sigstack);
^
1 error generated.
ninja: build stopped: subcommand failed.

[advancedwebdeveloper]

CC @thanm @ianlancetaylor @cherrymui

[advancedwebdeveloper]

You can find my compressed build folder out here

[advancedwebdeveloper]

Asked @rcombs , recently - and got a hint: that is about using sigaltstack ( description ) versus sigstack ( description ).

[advancedwebdeveloper]

@ncopa , please advise something.

[advancedwebdeveloper]

I have replaced the line - so now I am getting the following:

[1/1075] Building Go package 'runtime' (non-PIC)
FAILED: tools/gollvm/libgo/runtime.o
cd /home/oceanfish81/workarea/build_release/tools/gollvm/libgo && /usr/bin/cmake -E make_directory ./. && /home/oceanfish81/workarea/build_release/./bin/llvm-goc -c -o /home/oceanfish81/workarea/build_release/tools/gollvm/libgo/./runtime.o -fgo-pkgpath=runtime -fgo-c-header=runtime.inc.raw -fgo-compiling-runtime -I . /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/alg.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/atomic_pointer.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/cgo_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/cgocall.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/cgocheck.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/chan.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/compiler.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/cpuprof.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/cputicks.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/debug.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/debuglog.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/debuglog_off.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/env_posix.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/eqtype.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/error.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/extern.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/fastlog2.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/fastlog2table.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/ffi.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/float.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/hash64.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/heapdump.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/iface.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/lfstack.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/lfstack_64bit.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/lock_futex.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/lockrank.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/lockrank_off.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/malloc.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/map.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/map_fast32.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/map_fast64.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/map_faststr.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mbarrier.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mbitmap.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mcache.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mcentral.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mem_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mfinal.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mfixalloc.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgc.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgc_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgcmark.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgcscavenge.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgcsweep.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgcsweepbuf.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mgcwork.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mheap.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mpagealloc.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mpagealloc_64bit.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mpagecache.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mpallocbits.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mprof.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mranges.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/msan0.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/msize.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mspanset.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mstats.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/mwbbuf.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/nbpipe_pipe2.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/netpoll.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/netpoll_epoll.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/os_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/os_linux.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/os_linux_noauxv.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/panic.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/panic32.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/preempt.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/preempt_nonwindows.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/print.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/proc.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/profbuf.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/proflabel.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/race0.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/rdebug.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/relax_stub.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/runtime.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/runtime1.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/runtime2.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/rwmutex.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/select.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/sema.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_unix.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/sigqueue.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/sigqueue_note.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/sizeclasses.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/slice.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/string.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/stubs.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/stubs2.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/stubs3.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/stubs_linux.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/symtab.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/time.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/time_nofake.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/timestub.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/timestub2.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/trace.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/traceback_gccgo.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/type.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/typekind.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/utf8.go /home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/write_err.go /home/oceanfish81/workarea/build_release/tools/gollvm/libgo/runtime_linknames.go /home/oceanfish81/workarea/build_release/tools/gollvm/libgo/runtime_sysinfo.go /home/oceanfish81/workarea/build_release/tools/gollvm/libgo/sigtab.go
/home/oceanfish81/workarea/build_release/tools/gollvm/libgo/sigtab.go:38:2: error: duplicate value for index 29
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_unix.go:810:3: error: range clause must have array, slice, string, map, or channel type
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_unix.go:1040:2: error: range clause must have array, slice, string, map, or channel type
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_unix.go:810:7: error: invalid type for range clause
/home/oceanfish81/workarea/llvm-project/llvm/tools/gollvm/gofrontend/libgo/go/runtime/signal_unix.go:1040:6: error: invalid type for range clause
ninja: build stopped: subcommand failed.

Here is my compressed build folder.

Also mentioned

go/src/runtime/runtime2.go

Line 512 in 39a5ee5

newSigstack bool // minit on C thread called sigaltstack

and https://github.com/golang/go/search?q=sigaltstack .
So there seams to be some support, for sigaltstack

[ericonr]

https://go.googlesource.com/gollvm/#wheretopostquestions recommends the mailing list instead of the issue tracker.

[advancedwebdeveloper]

@thanm, I got this

[91/1825] Building CXX object lib/Target/CMakeFiles/LLVMTarget.dir/TargetLoweringObjectFile.cpp.o
ninja: job failed: /usr/bin/clang++ -DGTEST_HAS_RTTI=0 -D_DEBUG -D__STDC_CONSTANT_MACROS -D__STDC_FORMAT_MACROS -D__STDC_LIMIT_MACROS -Itools/gollvm/passes -I/home/oceanfish81/llvm-project/llvm/tools/gollvm/passes -Iinclude -I/home/oceanfish81/llvm-project/llvm/include -fPIC -fvisibility-inlines-hidden -Werror=date-time -Werror=unguarded-availability-new -Wall -Wextra -Wno-unused-parameter -Wwrite-strings -Wcast-qual -Wmissing-field-initializers -pedantic -Wno-long-long -Wimplicit-fallthrough -Wcovered-switch-default -Wno-noexcept-type -Wnon-virtual-dtor -Wdelete-non-virtual-dtor -Wstring-conversion -fdiagnostics-color -g -fno-exceptions -fno-rtti -std=c++14 -MD -MT tools/gollvm/passes/CMakeFiles/LLVMCppGoPasses.dir/GoNilChecks.cpp.o -MF tools/gollvm/passes/CMakeFiles/LLVMCppGoPasses.dir/GoNilChecks.cpp.o.d -o tools/gollvm/passes/CMakeFiles/LLVMCppGoPasses.dir/GoNilChecks.cpp.o -c /home/oceanfish81/llvm-project/llvm/tools/gollvm/passes/GoNilChecks.cpp
/home/oceanfish81/llvm-project/llvm/tools/gollvm/passes/GoNilChecks.cpp:361:68: error: no member named 'unknown' in 'llvm::LocationSize'
AA->alias(MemoryLocation(MMO1->getValue(), LocationSize::unknown(),
~~~~~~~~~~~~~~^
/home/oceanfish81/llvm-project/llvm/tools/gollvm/passes/GoNilChecks.cpp:363:68: error: no member named 'unknown' in 'llvm::LocationSize'
MemoryLocation(MMO2->getValue(), LocationSize::unknown(),
~~~~~~~~~~~~~~^

I was using

$ clang --version
Alpine clang version 10.0.0 (https://gitlab.alpinelinux.org/alpine/aports.git 7445adce501f8473efdb93b17b5eaf2f1445ed4c)
Target: x86_64-alpine-linux-musl
Thread model: posix

[advancedwebdeveloper]

Now I have another problem:

build-server:~/workarea/release$ ninja gollvm
[1/1092] Generating /home/oceanfish81/workarea/release/tools/gollvm/libgo/gen-sysinfo.go
ninja: job failed: cd /home/oceanfish81/workarea/release/tools/gollvm/libgo && /home/oceanfish81/workarea/release/./bin/llvm-godumpspec --macrotmp=/home/oceanfish81/workarea/release/tools/gollvm/libgo/sysinfo.macros.txt --object=/home/oceanfish81/workarea/release/tools/gollvm/libgo/sysinfo.o --output=/home/oceanfish81/workarea/release/tools/gollvm/libgo/gen-sysinfo.go.tmp
error: failed to decompress '.debug_info', zlib is not available
error: failed to decompress '.debug_abbrev', zlib is not available
error: failed to decompress '.debug_line', zlib is not available
error: failed to decompress '.debug_str', zlib is not available
error: no DWARF compilation units found in /home/oceanfish81/workarea/release/tools/gollvm/libgo/sysinfo.o

[thanm]

zlib not available

This is an LLVM peculiarity -- in the LLVM cmake rules ( https://llvm.org/docs/CMake.html ) there is a control variable

 LLVM_ENABLE_ZLIB:BOOL
 Enable building with zlib to support compression/uncompression in LLVM tools. Defaults to ON.

Most likely what is happening is that your build system doesn't have zlib installed.

Try applying this patch and see if it helps:

diff --git a/cmake/modules/AutoGenGo.cmake b/cmake/modules/AutoGenGo.cmake
index 3e3ab83..b5e21ec 100644
--- a/cmake/modules/AutoGenGo.cmake
+++ b/cmake/modules/AutoGenGo.cmake
@@ -505,7 +505,7 @@ function(mkgensysinfo tmpfile outfile macrofile objfile godumpspec sysinfoc)
   # implement this functionality.
   add_custom_command(
     OUTPUT ${objfile}
-    COMMAND ${ccomp} "-g2" "-c" "-fno-eliminate-unused-debug-types"
+    COMMAND ${ccomp} "-g2" "-c" "-fno-eliminate-unused-debug-types" "-gz=none"
             ${sysinfoc} -o ${objfile} ${cflags}
     DEPENDS ${sysinfoc} ${ARG_DEPS}
     COMMENT "Building sysinfo.o "

[advancedwebdeveloper]

Thanks, I will check.

Btw here is a compressed virtual drive image:
https://drive.google.com/file/d/1J3YMemta7jphbK5Pq_rqhmH2HfW5NkYb/view?usp=sharing
.