Re: New kernel-toolchain buildkernel problem for amd64 -> aarch64 cross build ( after -r336348 ) : ld used for addf_data only can target: elf_x86_64_fbsd elf_i386_fbsd

From: Mark Millard <marklmi_at_yahoo.com>
Date: Mon, 16 Jul 2018 18:13:27 -0700
On 2018-Jul-16, at 4:47 PM, Bryan Drewery <bdrewery at FreeBSD.org> wrote:

> On 7/16/2018 3:49 PM, Mark Millard wrote:
>> 
>> 
>> On 2018-Jul-16, at 3:31 PM, Bryan Drewery <bdrewery at FreeBSD.org> wrote:
>> 
>>> On 7/16/18 1:21 PM, Mark Millard wrote:
>>>> I attempted a from-scratch (. . ./arm64.aarch64/ empty) kernel-toolchain buildkernel
>>>> targeting aarch64 from amd64 based on head -r336349 . It failed by ending up
>>>> using an ld that can only target elf_x86_64_fbsd elf_i386_fbsd :
>>> 
>>> I probably extended the LLVM_TARGET_ALL=no in cross-compiler too far. I
>>> thought I had left that out for kernel-toolchain but apparently not.
>>> 
>>> Try this patch and kernel-toolchain after applying please:
>>> http://people.freebsd.org/~bdrewery/patches/cross-compiler-fix.diff
>>> . . .
>> 
>> Result is unchanged. Details follow.
> 
> Ok, I'll look more tomorrow.
> 
>> 
>> With:
>> 
>> # svnlite diff /usr/src/Makefile.inc1
>> Index: /usr/src/Makefile.inc1
>> ===================================================================
>> --- /usr/src/Makefile.inc1	(revision 336349)
>> +++ /usr/src/Makefile.inc1	(working copy)
>> _at__at_ -666,7 +666,7 _at__at_
>> BMAKE=		\
>> 		${BMAKEENV} ${MAKE} ${WORLD_FLAGS} -f Makefile.inc1 \
>> 		${BSARGS}
>> -.if empty(.MAKEOVERRIDES:MMK_LLVM_TARGET_ALL)
>> +.if empty(.MAKEOVERRIDES:MMK_LLVM_TARGET_ALL) && !make(*toolchain*)
>> BMAKE+=		MK_LLVM_TARGET_ALL=no
>> .endif
>> 
>> used via:
>> 
>> # rm -fr /usr/obj/cortexA53_clang/arm64.aarch64/*
>> # ~/sys_build_scripts.amd64-host/make_cortexA53_nodebug_clang_bootstrap-amd64-host.sh -j4 kernel-toolchain buildkernel
>> 
>> I still get:
>> 
>> --- buildkernel ---
>> Building /usr/obj/cortexA53_clang/arm64.aarch64/usr/src/arm64.aarch64/sys/GENERIC-NODBG/modules/usr/src/sys/modules/accf_data/accf_data.kld
>> --- accf_data.kld ---
>> ld: unrecognised emulation mode: aarch64elf
>> Supported emulations: elf_x86_64_fbsd elf_i386_fbsd
>> *** [accf_data.kld] Error code 1
>> 
>> 
>> 
>> Reminder of what my .sh script does:
>> 
>> # more ~/sys_build_scripts.amd64-host/make_cortexA53_nodebug_clang_bootstrap-amd64-host.sh
>> kldload -n filemon && \
>> script ~/sys_typescripts/typescript_make_cortexA53_nodebug_clang_bootstrap-amd64-host-$(date +%Y-%m-%d:%H:%M:%S) \
>> env __MAKE_CONF="/root/src.configs/make.conf" SRCCONF="/dev/null" SRC_ENV_CONF="/root/src.configs/src.conf.cortexA53-clang-bootstrap.amd64-host" \
>> WITH_META_MODE=yes \
>> MAKEOBJDIRPREFIX="/usr/obj/cortexA53_clang/arm64.aarch64" \
>> make $*
>> 
>> (I'll not repeat the other supporting material.)

In case it helps:

# ~/sys_build_scripts.amd64-host/make_cortexA53_nodebug_clang_bootstrap-amd64-host.sh test-system-linker
Script started, output file is /root/sys_typescripts/typescript_make_cortexA53_nodebug_clang_bootstrap-amd64-host-2018-07-16:17:48:38
USING_SYSTEM_LINKER                = no
MK_SYSTEM_LINKER                   = no
MK_LLD_BOOTSTRAP                   = yes
MK_BINUTILS_BOOTSTRAP              = no
WANT_LINKER_TYPE                   = lld
WANT_LINKER_VERSION                = 60001
WANT_LINKER_VERSION_FILE           = lib/clang/include/lld/Common/Version.inc
WANT_LINKER_FREEBSD_VERSION        = 335540-1200003
WANT_LINKER_FREEBSD_VERSION_FILE   = lib/clang/include/lld/Common/Version.inc
LD                                 = ld
LINKER_TYPE                        = bfd
LINKER_FEATURES                    =  filter
LINKER_VERSION                     = 21750
LINKER_FREEBSD_VERSION             = 0
XLD                                = ld
X_LINKER_TYPE                      = bfd
X_LINKER_FEATURES                  =  filter
X_LINKER_VERSION                   = 21750
X_LINKER_FREEBSD_VERSION           = 0

Script done, output file is /root/sys_typescripts/typescript_make_cortexA53_nodebug_clang_bootstrap-amd64-host-2018-07-16:17:48:38

The part after the WANT_<?>'s looks odd to me.

(I think the above type of output would be good in ci.freebsd.org
build logs for the likes of FreeBSD-head-*-build . Similarly for
test-system-compiler output.)

I get similar oddness for a self-hosted amd64 build via my
usual .sh and src/make configuration files:

# ~/sys_build_scripts.amd64-host/make_amd64_nodebug_clang-amd64-host.sh test-system-linker
Script started, output file is /root/sys_typescripts/typescript_make_amd64_nodebug_clang-amd64-host-2018-07-16:18:00:52
USING_SYSTEM_LINKER                = no
MK_SYSTEM_LINKER                   = yes
MK_LLD_BOOTSTRAP                   = yes
MK_BINUTILS_BOOTSTRAP              = yes
WANT_LINKER_TYPE                   = lld
WANT_LINKER_VERSION                = 60001
WANT_LINKER_VERSION_FILE           = lib/clang/include/lld/Common/Version.inc
WANT_LINKER_FREEBSD_VERSION        = 335540-1200003
WANT_LINKER_FREEBSD_VERSION_FILE   = lib/clang/include/lld/Common/Version.inc
LD                                 = ld
LINKER_TYPE                        = bfd
LINKER_FEATURES                    =  filter
LINKER_VERSION                     = 21750
LINKER_FREEBSD_VERSION             = 0
XLD                                = ld
X_LINKER_TYPE                      = bfd
X_LINKER_FEATURES                  =  filter
X_LINKER_VERSION                   = 21750
X_LINKER_FREEBSD_VERSION           = 0

Script done, output file is /root/sys_typescripts/typescript_make_amd64_nodebug_clang-amd64-host-2018-07-16:18:00:52


(In both contexts test-system-compiler output seemed reasonable to
me.)

===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)
Received on Mon Jul 16 2018 - 23:13:40 UTC

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