[Bug bootstrap/55644] bootstrap-lto fails on current trunk (with and without profiledbootstrap)

[matt at use dot net]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55644

--- Comment #5 from Matt Hargett <matt at use dot net> 2013-02-06 01:23:02 UTC ---
the latest failure, with current trunk:

/work/mhargett/gcc-trunk-obj/./prev-gcc/xg++
-B/work/mhargett/gcc-trunk-obj/./prev-gcc/
-B/u/mhargett/x86_64-unknown-linux-gnu/bin/ -nostdinc++
-B/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-B/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
-I/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include/x86_64-unknown-linux-gnu
-I/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/include
-I/work/mhargett/gcc-trunk/libstdc++-v3/libsupc++
-L/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/src/.libs
-L/work/mhargett/gcc-trunk-obj/prev-x86_64-unknown-linux-gnu/libstdc++-v3/libsupc++/.libs
  -g -O2 -O3 -march=nocona -mtune=core2 -floop-block -floop-interchange
-floop-strip-mine -flto=jobserver -frandom-seed=1 -DIN_GCC   -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 -Werror -fno-common 
-DHAVE_CONFIG_H -static-libstdc++ -static-libgcc  gcc-ar.o -o gcc-ar \
        file-find.o libcommon.a ../libcpp/libcpp.a  
../libbacktrace/.libs/libbacktrace.a ../libiberty/libiberty.a
../libdecnumber/libdecnumber.a  
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:116:0,
                 from :61:
../../gcc-trunk/libbacktrace/elf.c: In function 'elf_add':
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.len' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:119:0,
                 from :61:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.len' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:116:0,
                 from :61:
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.base' may be
used uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:119:0,
                 from :61:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.base' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:119:0,
                 from :61:
../../gcc-trunk/libbacktrace/elf.c:516:10: error: 'ehdr_view.data' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   memcpy (&ehdr, ehdr_view.data, sizeof ehdr);
          ^
In file included from ../../gcc-trunk/libbacktrace/mmapio.c:119:0,
                 from :61:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.data' was declared
here
   struct backtrace_view ehdr_view;
                         ^
lto1: all warnings being treated as errors
make[4]: *** [/tmp/cc68SyuG.ltrans2.ltrans.o] Error 1
make[4]: *** Waiting for unfinished jobs....
lto-wrapper: make returned 2 exit status
/u/mhargett/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [gcov-dump] Error 1
make[3]: *** Waiting for unfinished jobs....
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:877:0,
                 from :73:
../../gcc-trunk/libbacktrace/elf.c: In function 'backtrace_initialize':
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.len' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :73:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.len' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:877:0,
                 from :73:
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.base' may be
used uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :73:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.base' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :73:
../../gcc-trunk/libbacktrace/elf.c:516:10: error: 'ehdr_view.data' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   memcpy (&ehdr, ehdr_view.data, sizeof ehdr);
          ^
lto1: all warnings being treated as errors
make[4]: *** [/tmp/ccqV4nuG.ltrans13.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/u/mhargett/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [gcov] Error 1
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:398:0,
                 from :154:
../../gcc-trunk/libbacktrace/elf.c: In function 'elf_add':
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.len' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:401:0,
                 from :154:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.len' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:398:0,
                 from :154:
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.base' may be
used uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:401:0,
                 from :154:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.base' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:401:0,
                 from :154:
../../gcc-trunk/libbacktrace/elf.c:516:10: error: 'ehdr_view.data' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   memcpy (&ehdr, ehdr_view.data, sizeof ehdr);
          ^
In file included from ../../gcc-trunk/libbacktrace/dwarf.c:401:0,
                 from :154:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.data' was declared
here
   struct backtrace_view ehdr_view;
                         ^
lto1: all warnings being treated as errors
make[4]: *** [/tmp/ccybddqW.ltrans4.ltrans.o] Error 1
make[4]: *** Waiting for unfinished jobs....
lto-wrapper: make returned 2 exit status
/u/mhargett/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [collect2] Error 1
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:877:0,
                 from :59:
../../gcc-trunk/libbacktrace/elf.c: In function 'backtrace_initialize':
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.len' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :59:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.len' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:877:0,
                 from :59:
../../gcc-trunk/libbacktrace/mmapio.c:98:14: error: 'ehdr_view.base' may be
used uninitialized in this function [-Werror=maybe-uninitialized]
   if (munmap (const_cast.v, view->len) < 0)
              ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :59:
../../gcc-trunk/libbacktrace/elf.c:476:25: note: 'ehdr_view.base' was declared
here
   struct backtrace_view ehdr_view;
                         ^
In file included from ../../gcc-trunk/libiberty/cp-demangle.c:879:0,
                 from :59:
../../gcc-trunk/libbacktrace/elf.c:516:10: error: 'ehdr_view.data' may be used
uninitialized in this function [-Werror=maybe-uninitialized]
   memcpy (&ehdr, ehdr_view.data, sizeof ehdr);
          ^
lto1: all warnings being treated as errors
make[4]: *** [/tmp/ccG7WpE4.ltrans21.ltrans.o] Error 1
make[4]: *** Waiting for unfinished jobs....
In file included from ../../gcc-trunk/libiberty/simple-object.c:426:0,
                 from :35:
../../gcc-trunk/libiberty/simple-object-mach-o.c: In function
'simple_object_mach_o_find_sections':
../../gcc-trunk/libiberty/simple-object-mach-o.c:653:37: error:
'wrapper_sect_offset' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
     secoffset = wrapper_sect_offset + subsect_offset;
                                     ^
lto1: all warnings being treated as errors
make[4]: *** [/tmp/ccG7WpE4.ltrans22.ltrans.o] Error 1
lto-wrapper: make returned 2 exit status
/u/mhargett/x86_64-unknown-linux-gnu/bin/ld: lto-wrapper failed
collect2: error: ld returned 1 exit status
make[3]: *** [lto-wrapper] Error 1

rm cpp.pod gfdl.pod gcov.pod fsf-funding.pod gcc.pod
make[3]: Leaving directory `/work/mhargett/gcc-trunk-obj/gcc'
make[2]: *** [all-stage2-gcc] Error 2