[MacPorts] #58442: clang-7, 8.0 - seg. faults when used as assembler with assertions variant active.

[MacPorts]

#58442: clang-7,8.0 - seg. faults when used as assembler with assertions variant
active.
----------------------------------+--------------------
  Reporter:  mouse07410           |      Owner:  (none)
      Type:  defect               |     Status:  new
  Priority:  Normal               |  Milestone:
 Component:  ports                |    Version:
Resolution:                       |   Keywords:
      Port:  clang-7.0 clang-8.0  |
----------------------------------+--------------------

Comment (by mouse07410):

 > ...mouse had a potential reproducer from building ntl ?

 Oh yes.

 1. Make sure your Mac is set for using Macports GCC (say, {{{gcc9}}} - but
 it happened with {{{gcc8}}} as well): {{{sudo port select --set gcc mp-
 gcc9 && sudo port select --set llvm mp-llvm-7.0}}} (or set llvm to mp-
 llvm-8.0, whatever)
 1. Download and unpack the current (11.3.2) NTL distro
 {{{ntl-11.3.2.tar.gz}}} into the current dir.
 2. {{{cd ntl-11.3.2/src}}}
 3. {{{./configure}}}

 This should be enough - it should abort with something like
 {{{
 $ ./configure
 Compilation failed
 See CompilerOutput.log for details
 Goodbye! at DoConfig line 616.
 $ cat CompilerOutput.log
 *** CompilerOutput.log ***
 *** building GenConfigInfo
 g++ -I../include -I.  -g -O2   -o  GenConfigInfo GenConfigInfo.cpp -lm
 Assertion failed: (!CreatedADWARFSection && "Creating regular section
 after DWARF"), function ChangeSection, file
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_lang_llvm-7.0/llvm-7.0/work/llvm-7.0.1.src/lib/MC/MCMachOStreamer.cpp,
 line 159.
 Stack dump:
 0.      Program arguments: /opt/local/libexec/llvm-7.0/bin/clang -cc1as
 -triple x86_64-apple-macosx10.14.0 -filetype obj -main-file-name
 ccM0RN41.s -target-cpu penryn -I ../include -I . -fdebug-compilation-dir
 /Users/ur20980/src/ntl-11.3.2/src -dwarf-debug-producer clang version
 7.0.1 (tags/RELEASE_701/final) -I ../include -I . -dwarf-version=4
 -mrelocation-model pic -o
 /var/folders/c6/lnc_0m093ys8w16md_fm1mnxhtfnj8/T//ccqJ94NA.o
 /var/folders/c6/lnc_0m093ys8w16md_fm1mnxhtfnj8/T//ccM0RN41.s
 0  libLLVM.dylib            0x0000000105d038b0
 llvm::sys::PrintStackTrace(llvm::raw_ostream&) + 37
 1  libLLVM.dylib            0x0000000105d03ca1 SignalHandler(int) + 200
 2  libsystem_platform.dylib 0x00007fff7fad1b5d _sigtramp + 29
 3  libLLVM.dylib            0x00000001088ffa90 (anonymous
 namespace)::NoOpLoopAnalysis::Key + 405584
 4  libsystem_c.dylib        0x00007fff7f9916a6 abort + 127
 5  libsystem_c.dylib        0x00007fff7f95a20d basename_r + 0
 6  libLLVM.dylib            0x00000001068e3479 (anonymous
 namespace)::MCMachOStreamer::ChangeSection(llvm::MCSection*, llvm::MCExpr
 const*) + 793
 7  libLLVM.dylib            0x00000001068f0b89
 llvm::MCStreamer::SwitchSection(llvm::MCSection*, llvm::MCExpr const*) +
 97
 8  libLLVM.dylib            0x0000000106927dab (anonymous
 namespace)::DarwinAsmParser::parseSectionSwitch(llvm::StringRef,
 llvm::StringRef, unsigned int, unsigned int, unsigned int) + 201
 9  libLLVM.dylib            0x00000001069285ee bool
 llvm::MCAsmParserExtension::HandleDirective<(anonymous
 namespace)::DarwinAsmParser, &((anonymous
 namespace)::DarwinAsmParser::parseSectionDirectiveModInitFunc(llvm::StringRef,
 llvm::SMLoc))>(llvm::MCAsmParserExtension*, llvm::StringRef, llvm::SMLoc)
 + 44
 10 libLLVM.dylib            0x00000001069114d5 (anonymous
 namespace)::AsmParser::parseStatement((anonymous
 namespace)::ParseStatementInfo&, llvm::MCAsmParserSemaCallback*) + 2127
 11 libLLVM.dylib            0x000000010690d3b7 (anonymous
 namespace)::AsmParser::Run(bool, bool) + 395
 12 clang                    0x000000010422efe0
 cc1as_main(llvm::ArrayRef<char const*>, char const*, void*) + 10156
 13 clang                    0x000000010422a27b main + 7864
 14 libdyld.dylib            0x00007fff7f8ec3d5 start + 1
 15 libdyld.dylib            0x000000000000001c start + 2154904648
 clang: error: unable to execute command: Abort trap: 6
 clang: error: clang integrated assembler command failed due to signal (use
 -v to see invocation)
 clang version 7.0.1 (tags/RELEASE_701/final)
 Target: x86_64-apple-darwin18.5.0
 Thread model: posix
 InstalledDir: /opt/local/libexec/llvm-7.0/bin
 clang: note: diagnostic msg: PLEASE submit a bug report to
 https://bugs.llvm.org/ and include the crash backtrace, preprocessed
 source, and associated run script.
 clang: note: diagnostic msg: Error generating preprocessed source(s) - no
 preprocessable inputs.
 make: *** [GenConfigInfo] Error 1
 $
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/58442#comment:49>
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