https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88535
--- Comment #12 from john henning <mailboxnotfound at yahoo dot com> ---
Summary:
Eric's advice worked as prescribed.
Detail:
On a SPARC Solaris 11.4 system, with a /usr/bin/gcc
that by default produces 64-bit objects, this worked for
an 8.2.0 bootstrap build:
export CC="gcc -m64"
export CXX="g++ -m64"
/export/home/johnh/gcc/build/gcc-8.2.0/configure \
--enable-languages=c,c++,fortran --enable-lto \
--without-system-zlib --with-included-gettext \
\
--build=sparcv9-sun-solaris2.11 \
\
--disable-libvtv \
--with-gnu-as --with-as=/usr/gnu/bin/as \
--without-gnu-ld --with-ld=/usr/bin/ld \
--with-pkgversion=johnh-18-Dec-2018 \
--prefix=/export/GCC/gcc-8.2.0 \
--with-local-prefix=/export/GCC
gmake -j200 bootstrap && gmake install
and in particular, dwarf2out.o matches exactly for
stage 2 and 3:
$ file */dwarf2out.o
gcc/dwarf2out.o: ELF 64-bit MSB relocatable SPARCV9 Version 1
prev-gcc/dwarf2out.o: ELF 64-bit MSB relocatable SPARCV9 Version 1
stage1-gcc/dwarf2out.o: ELF 64-bit MSB relocatable SPARCV9 Version 1
$ md5sum */dwarf2out.o
9648da8ac96c68bc929b5a23f9174889 gcc/dwarf2out.o
9648da8ac96c68bc929b5a23f9174889 prev-gcc/dwarf2out.o
e482bf6aeef8753c6f5eac01bfb5f061 stage1-gcc/dwarf2out.o
$
