[Bug 200350] elftoolchain incorrect strip(1) SHT_GROUP handling

[bugzilla-noreply at freebsd.org]

https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=200350

            Bug ID: 200350
           Summary: elftoolchain incorrect strip(1) SHT_GROUP handling
           Product: Base System
           Version: 11.0-CURRENT
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: bin
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: emaste at freebsd.org

Opening a PR to track this issue specifically in FreeBSD; this is also
https://sourceforge.net/p/elftoolchain/tickets/486/

In PR198611 it was reported that after the switch to ELF Tool Chain strip
libtool no longer strips libraries.  Fixing that problem and allowing it to
strip libs uncovered a number of problems, all of which are now addressed
except for this one port failure in lang/gnatdroid-armv7.

The failure looks like:

g++ -c   -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions
-fno-rtti -fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings   -DHAVE_CONFIG_H -I. -Ic-family
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/c-family
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/../include
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/../libcpp/include
-I/usr/local/include -I/usr/local/include -I/usr/local/include 
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/../libdecnumber
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/../libdecnumber/dpd
-I../libdecnumber
-I/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/../libbacktrace   
-o c-family/cppspec.o -MT c-family/cppspec.o -MMD -MP -MF
c-family/.deps/cppspec.TPo
/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/gcc-4.9.2/gcc/c-family/cppspec.c
g++   -g -O2 -DIN_GCC  -DCROSS_DIRECTORY_STRUCTURE  -fno-exceptions -fno-rtti
-fasynchronous-unwind-tables -W -Wall -Wno-narrowing -Wwrite-strings
-Wcast-qual -Wmissing-format-attribute -pedantic -Wno-long-long
-Wno-variadic-macros -Wno-overlength-strings   -DHAVE_CONFIG_H
-static-libstdc++ -static-libgcc  -o cpp gcc.o ggc-none.o \
  c-family/cppspec.o  libcommon-target.a \
   libcommon.a ../libcpp/libcpp.a   ../libbacktrace/.libs/libbacktrace.a
../libiberty/libiberty.a ../libdecnumber/libdecnumber.a 
/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/build/./gcc/xgcc
-B/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/build/./gcc/ -dumpspecs >
tmp-specs
Makefile:1824: recipe for target 'specs' failed
gmake[3]: *** [specs] Segmentation fault (core dumped)
gmake[3]: Leaving directory
'/wrkdirs/usr/ports/lang/gnatdroid-armv7/work/build/gcc'
Makefile:3971: recipe for target 'all-gcc' failed
gmake[2]: *** [all-gcc] Error 2

(see various logs linked from PR 198611 for more detail)

lang/gnatdroid-armv7 depends on:
feynman% make pretty-print-build-depends-list
This port requires package(s) "binutils-2.25 gcc-aux-20141023_1
gettext-runtime-0.19.4 gmake-4.1_2 gmp-5.1.3_2 gnatdroid-binutils-2.25
gnatdroid-sysroot-19_1 indexinfo-0.2.3 mpc-1.0.3 mpfr-3.1.2_2 perl5-5.20.2_4"
to build.

It looks like lang/gcc-aux gets built with a corrupted libstdc++.a due to the
various SHT_GROUP issues.  Prior to ELF Tool Chain commit r3207 gnatdroid-armv7
completely failed to build, but it now looks like it manages to build the
cross-compiler, but it then crashes.

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