https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206303
Bug ID: 206303
Summary: 11.0-CURRENT -r294096 boot/powerpc/kboot/Makefile for
TARGET_ARCH=powerpc (non-64, clang based): unsupported
argument '-mppc64bridge' to option '-Wc,'
Product: Base System
Version: 11.0-CURRENT
Hardware: ppc
OS: Any
Status: New
Severity: Affects Only Me
Priority: ---
Component: bin
Assignee: freebsd-bugs@FreeBSD.org
Reporter: mar...@dsl-only.net
Not that I expected everything to work but I tried an amd64 based -r294096 ->
powerpc buildworld buildkernel based on base/projects/clang3.8.0-import for
TARGET_ARCH=powerpc (non-64). This was WITH_BOOT= in the src.conf file.
What stopped it was an attempt to use: -Wc,-mppc64bridge
That was from: base/head/sys/boot/powerpc/kboot/Makefile
(One of the SRCS in that Makefile is ppc64_elf_freebsd.c as well.)
The command line getting the message is for compiling conf.c and also has a
-mcpu=powerpc64 in it. But the error message is:
cc: error: unsupported argument '-mppc64bridge' to option '-Wc,'
As far as I can tell looking at the history this has possibly been true since
11.0-CURRENT -r276331 on 2014-Dec-28 when
base/head/sys/boot/powerpc/kboot/Makefile was created. I may just be the first
to have tried such a clang-based powerpc build sequence.
It would appear that kboot should possibly only be built when
TARGET_ARCH=powerpc64 and not when TARGET_ARCH=powerpc . Otherwise more than
clang likely has to be able to target powerpc64 specifics for a
TARGET_ARCH=powerpc build. (But this is guess work on my part for the FreeBSD
criteria for such things. But a stopped TARGET_ARCH=powerpc build when clang
based does not seem a likely intended result.)
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