I'm seeing the following bootstrap error with 4.2:
build/genmddeps ../gcc-4.2/gcc/config/rs6000/rs6000.md > tmp-mddeps
/bin/sh: line 1: 3635 Illegal instruction build/genmddeps
../gcc-4.2/gcc/config/rs6000/rs6000.md >tmp-mddeps
make[3]: *** [s-mddeps] Error 132
I'm trying to build a GCC that will generate code for PPC405 but I'm doing
this on a powerpc box that doesn't have a PPC405 CPU. From my understanding
of the docs, --with-cpu creates a compiler for a specific CPU but you can
generate this GCC on a machine with a different CPU. This also works with
4.1 and 4.3, but gives the "Illegal instruction" error above with 4.2.
I configured with:
../gcc-4.2/configure -v \
--enable-languages=c \
--disable-multilib \
--disable-werror \
--with-cpu=405 \
--build=powerpc-linux-gnu \
--host=powerpc-linux-gnu \
--target=powerpc-linux-gnu
When I drop the --with-cpu=405 option it works, but from my reading of the
docs this should work.
--
Summary: [4.2 regression] Illegal instruction with
build/genmddeps with PPC405 build on powerpc
Product: gcc
Version: 4.2.2
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: target
AssignedTo: unassigned at gcc dot gnu dot org
ReportedBy: tbm at cyrius dot com
GCC target triplet: powerpc-linux-gnu
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33730
