[Bug c++/51333] New: cxxabi.h incompatible with -fkeep-inline-functions at link time

[Bug c++/51333] New: cxxabi.h incompatible with -fkeep-inline-functions at link time

[dak at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51333

             Bug #: 51333
           Summary: cxxabi.h incompatible with -fkeep-inline-functions at
                    link time
    Classification: Unclassified
           Product: gcc
           Version: 4.6.1
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: c++
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: dak@gnu.org


Created attachment 25935
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=25935
File failing at link time

The following file fails, when compiled with -fkeep-inline-functions, at link
time with the error

g++ -fkeep-inline-functions abi.cc
/tmp/ccI7H3ZL.o: In function
`__gnu_cxx::recursive_init_error::recursive_init_error()':
abi.cc:(.text._ZN9__gnu_cxx20recursive_init_errorC2Ev[_ZN9__gnu_cxx20recursive_init_errorC5Ev]+0x16):
undefined reference to `vtable for __gnu_cxx::recursive_init_error'
collect2: ld returned 1 exit status

Compilation exited abnormally with code 1 at Mon Nov 28 14:41:24

Version is
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-linux-gnu/4.6.1/lto-wrapper
Target: i686-linux-gnu
Configured with: ../src/configure -v --with-pkgversion='Ubuntu/Linaro
4.6.1-9ubuntu3' --with-bugurl=file:///usr/share/doc/gcc-4.6/README.Bugs
--enable-languages=c,c++,fortran,objc,obj-c++,go --prefix=/usr
--program-suffix=-4.6 --enable-shared --enable-linker-build-id
--with-system-zlib --libexecdir=/usr/lib --without-included-gettext
--enable-threads=posix --with-gxx-include-dir=/usr/include/c++/4.6
--libdir=/usr/lib --enable-nls --with-sysroot=/ --enable-clocale=gnu
--enable-libstdcxx-debug --enable-libstdcxx-time=yes --enable-plugin
--enable-objc-gc --enable-targets=all --disable-werror --with-arch-32=i686
--with-tune=generic --enable-checking=release --build=i686-linux-gnu
--host=i686-linux-gnu --target=i686-linux-gnu
Thread model: posix
gcc version 4.6.1 (Ubuntu/Linaro 4.6.1-9ubuntu3)

[Bug c++/51333] cxxabi.h incompatible with -fkeep-inline-functions at link time

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51333

--- Comment #1 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-11-28 14:38:15 UTC ---
works with -lsupc++ but I'm not sure why it fails without

[Bug c++/51333] cxxabi.h incompatible with -fkeep-inline-functions at link time

[dak at gnu dot org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51333

David Kastrup <dak at gnu dot org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
      Known to work|4.5.2                       |

--- Comment #2 from David Kastrup <dak at gnu dot org> 2011-11-28 15:25:03 UTC ---
I am more surprised that actual demangling applications work without -lsupc++
as long as -fkeep-inline-functions is not used.

It is good to have a solution (even if its necessity depends on the compilation
options in a non-obvious way), but the actual error message certainly does not
particularly help in figuring out the problem.

I have to take back "works with 4.5.2" since I forgot that I used
-fkeep-inline-functions only once I needed to work around a 4.6.1 bug.  So I
actually have no data point when this option would have worked with the given
test file.

Probably that renders this particular report "invalid", but somebody really
should try making the link error message more intelligible.

[Bug c++/51333] cxxabi.h incompatible with -fkeep-inline-functions at link time

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51333

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-12-03 00:52:03 UTC ---
that function was not defined in its own file in 4.5, I moved it for PR 43863

[Bug c++/51333] cxxabi.h incompatible with -fkeep-inline-functions at link time

[joshb at cadence dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=51333

Josh Baudhuin <joshb at cadence dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |joshb at cadence dot com

--- Comment #4 from Josh Baudhuin <joshb at cadence dot com> ---
Noticed this somewhat intermittently in 4.8.3. The option was not universally
applied to the build, just to the code in one .so (and the same code
rebuilt/linked as .a).