[Bug 207837] www/firefox: clang34 and clang35 crash on i386 with -O2 -fstack-protector

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=207837

Jan Beich <jbeich at FreeBSD.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
              Flags|maintainer-feedback?(gecko@ |maintainer-feedback+
                   |FreeBSD.org)                |
            Summary|www/firefox build fails on  |www/firefox: clang34 and
                   |i386                        |clang35 crash on i386 with
                   |                            |-O2 -fstack-protector
             Status|New                         |Open

--- Comment #3 from Jan Beich <jbeich at FreeBSD.org> ---
lldb37 $(which c++) --core c++.core and if you've built world with symbols
(e.g. DEBUG_FLAGS=-g) it'll show something like the following. After checking
your full log I can reproduce it on lang/clang34, lang/clang35, /usr/bin/clang
on 10.1, 10.2, 10.3 with -m32 -O2 -fstack-protector. It doesn't crash with -O0,
-O1, -O3. As a workaround try building with OPTIMIZED_CFLAGS=on, using
lang/clang3[6-8] or lang/gcc*.

  (lldb) bt
  * thread #1: tid = 100230, 0x00000008064fae9a libc.so.7`thr_kill + 10 at
thr_kill.S:3, name = 'clang', stop reason = signal SIGABRT
    * frame #0: 0x00000008064fae9a libc.so.7`thr_kill + 10 at thr_kill.S:3
      frame #1: 0x00000008064fae6b libc.so.7`__raise(s=6) + 59 at raise.c:52
[opt]
      frame #2: 0x00000008064fae26 libc.so.7`abort + 150 at abort.c:77 [opt]
      frame #3: 0x000000080657e931 libc.so.7`__assert(func=<unavailable>,
file=<unavailable>, line=<unavailable>, failedexpr=<unavailable>) + 81 at
assert.c:51 [opt]
      frame #4: 0x0000000001f63483
clang`clang::Lexer::resetExtendedTokenMode(this=0x00007fffffff8680) + 67 at
Lexer.cpp:134
      frame #5: 0x0000000001f6c958
clang`clang::Lexer::LexEndOfFile(this=0x00007fffffff8680,
Result=0x00007fffffff85c8, CurPtr="") + 88 at Lexer.cpp:2463
      frame #6: 0x0000000001f6dbb4
clang`clang::Lexer::LexTokenInternal(this=0x00007fffffff8680,
Result=0x00007fffffff85c8, TokAtPhysicalStartOfLine=false) + 420 at
Lexer.cpp:2915
      frame #7: 0x0000000001f6c8a8
clang`clang::Lexer::Lex(this=0x00007fffffff8680, Result=0x00007fffffff85c8) +
216 at Lexer.cpp:2866
      frame #8: 0x000000000063c2f3
clang`clang::Lexer::LexFromRawLexer(this=0x00007fffffff8680,
Result=0x00007fffffff85c8) + 83 at Lexer.h:156
      frame #9: 0x0000000001aa50e5 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
1624), FileType=C_User) + 3989 at InclusionRewriter.cpp:495
      frame #10: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
1622), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #11: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
667), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #12: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
666), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #13: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
665), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #14: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
9), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #15: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
8), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #16: 0x0000000001aa4667 clang`(anonymous
namespace)::InclusionRewriter::Process(this=0x0000000806c5f0f0, FileId=(ID =
1), FileType=C_User) + 1303 at InclusionRewriter.cpp:401
      frame #17: 0x0000000001aa3f83
clang`clang::RewriteIncludesInInput(PP=0x0000000806c50800,
OS=0x0000000806c1a980, Opts=0x0000000806c37408) + 579 at
InclusionRewriter.cpp:548
      frame #18: 0x0000000001aa19bf
clang`clang::RewriteIncludesAction::ExecuteAction(this=0x0000000806c1a0c0) +
175 at FrontendActions.cpp:190
      frame #19: 0x0000000000633b37
clang`clang::FrontendAction::Execute(this=0x0000000806c1a0c0) + 183 at
FrontendAction.cpp:378
      frame #20: 0x00000000005f196e
clang`clang::CompilerInstance::ExecuteAction(this=0x0000000806c34000,
Act=0x0000000806c1a0c0) + 846 at CompilerInstance.cpp:707
      frame #21: 0x00000000005b0996
clang`clang::ExecuteCompilerInvocation(Clang=0x0000000806c34000) + 1958 at
ExecuteCompilerInvocation.cpp:236
      frame #22: 0x000000000059a281 clang`cc1_main(ArgBegin=0x00007fffffffd028,
ArgEnd=0x00007fffffffd400, Argv0="/usr/local/llvm34/bin/clang",
MainAddr=0x00000000005a78e0) + 993 at cc1_main.cpp:100
      frame #23: 0x00000000005a7cc6 clang`main(argc_=125,
argv_=0x00007fffffffd888) + 806 at driver.cpp:314
      frame #24: 0x00000000005994cf clang`_start(ap=<unavailable>,
cleanup=<unavailable>) + 383 at crt1.c:72 [opt]

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