https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=243664
Bug ID: 243664
Summary: reverted r356513 and r356515 make world
cross-buildable with GCC9
Product: Base System
Version: CURRENT
Hardware: sparc64
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: b...@freebsd.org
Reporter: krail...@elderlinux.org
The changes from r356513 were reverted in r356552 due to being untested. The
same is true for r356515 and r35655. When re-applied to -CURRENT, it's possible
to cross-build world using GCC9. There's a test failure regarding ZFS during
buildworld, but I ignored that for now by defining WITHOUT_GOOGLETEST.
While the cross-built kernel works just fine, all binaries resulting from
buildworld that I tested simply crash. I assume that this is why the patch was
declared as "almost certainly insufficient".
Taking a look at replacing the native toolchain, I found that base/binutils
works well and can built working 12-STABLE kernel and userland. However
base/gcc6 results in a partly broken compiler. It does compile a simple "hello
world" example, but trying to build e.g. ports shows that the compiler doesn't
completely work. And since no unwinder is present there seems to not be too
much interesting information in config.log.
I don't really know how to go on from here. If an experienced developer could
give me a clue on what to do in such a situation, I'd happily continue poking
at this. And should somebody be interested, I can also provide SSH access to a
SPARC64 machine (either running 12-STABLE or a 13-CURRENT kernel but 12-STABLE
userland).
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