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From: "marxin.liska at gmail dot com" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug c++/56312] New: Firefox 20.0a1 compilation with enabled LTO fails
Date: Wed, 13 Feb 2013 22:32:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56312

             Bug #: 56312
           Summary: Firefox 20.0a1 compilation with enabled LTO fails
    Classification: Unclassified
           Product: gcc
           Version: lto
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: marxin.liska@gmail.com


Hello,
   I encountered following error with enabled LTO.


error:
/usr/bin/python2.7 /home/marxin/Programming/firefox/js/src/config/pythonpath.py
-I../config /home/marxin/Programming/firefox/js/src/config/expandlibs_exec.py
--depend .deps/js.pp --target js --uselist -- 
/home/marxin/Programming/gcc-mainline/bin/g++ -o js  -pedantic -Wall
-Wpointer-arith -Woverloaded-virtual -Werror=return-type -Wtype-limits
-Wempty-body -Werror=conversion-null -Wno-ctor-dtor-privacy
-Wno-overlength-strings -Wno-invalid-offsetof -Wno-variadic-macros -Wcast-align
-Wno-long-long -flto -fno-rtti -ffunction-sections -fdata-sections
-fno-exceptions -pthread -pipe  -DNDEBUG -DTRIMMED -g -O2 -fomit-frame-pointer
js.o jsoptparse.o jsheaptools.o   -lpthread -flto -Wl,--build-id  
-Wl,-rpath-link,../../../dist/bin
-Wl,-rpath-link,/home/marxin/Programming/firefox/obj-x86_64-unknown-linux-gnu/dist/lib
  -L../../../dist/bin -L../../../dist/lib
-L/home/marxin/Programming/firefox/obj-x86_64-unknown-linux-gnu/dist/lib
-lnspr4 -lplc4 -lplds4 ../editline/libeditline.a ../libjs_static.a
/home/marxin/Programming/firefox/obj-x86_64-unknown-linux-gnu/modules/zlib/src/libmozz.a
-Wl,--whole-archive ../../../dist/lib/libmozglue.a
../../../dist/lib/libmemory.a -Wl,--no-whole-archive -rdynamic -ldl    
`PushActiveVMFrame' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
MethodJIT.o (symbol from plugin)
`PopActiveVMFrame' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
MethodJIT.o (symbol from plugin)
`js_InternalThrow' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
InvokeHelpers.o (symbol from plugin)
`PopActiveVMFrame' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
MethodJIT.o (symbol from plugin)
`js_InternalInterpret' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
InvokeHelpers.o (symbol from plugin)
`PopActiveVMFrame' referenced in section `.text' of
/tmp/ccgCbjBe.ltrans0.ltrans.o: defined in discarded section `.text' of
MethodJIT.o (symbol from plugin)
collect2: error: ld returned 1 exit status

gcc --version:
g++ (GCC) 4.8.0 20130113 (experimental)

firefox:
changeset:   118351:fc3ed72129d9

.mozconfig:
mk_add_options MOZ_MAKE_FLAGS="-j8"
ac_add_options --enable-application=browser
ac_add_options --enable-optimize=-O2
export CC=/home/marxin/Programming/gcc-mainline/bin/gcc
export CXX=/home/marxin/Programming/gcc-mainline/bin/g++

export CFLAGS="-flto"
export CXXFLAGS="-flto"
export LDFLAGS="-flto"

Thank you for your help,
Martin