sdma-imx6q.fwo: "lld uses blx instruction, no object with architecture supporting feature detected"

[Mark Millard via freebsd-arm]

During buildkernel for main I got:

--- sdma-imx6q.fwo ---
ld: warning: lld uses blx instruction, no object with architecture supporting feature detected

for a cross build from:

# uname -apKU
FreeBSD CA72_4c8G_ZFS 14.0-CURRENT FreeBSD 14.0-CURRENT #1 main-n246411-a6ca7519f89c-dirty: Sat May 1 19:07:50 PDT 2021 ***@CA72_4c8G_ZFS:/usr/obj/BUILDs/main-CA72-nodbg-clang/usr/main-src/arm64.aarch64/sys/GENERIC-NODBG-CA72 arm64 aarch64 1400013 1400013

i.e.:

# ~/fbsd-based-on-what-freebsd.sh
branch: main
merge-base: a6ca7519f89c52e9fab205cded0f2bf32d914cd6
merge-base: CommitDate: 2021-05-01 00:58:11 +0000
a6ca7519f89c (HEAD -> main, freebsd/main, freebsd/HEAD) powerpc64: Optimize radix trap handling a little more
n246411 (--first-parent --count for merge-base)

Targeting: armv7 ( cortex-a7 specifically ).

For reference:

# more ~/src.configs/src.conf.CA7-nodbg-clang.aarch64-host
TO_TYPE=armv7
#
KERNCONF=GENERIC-NODBG-CA7
TARGET=arm
.if ${.MAKE.LEVEL} == 0
TARGET_ARCH=${TO_TYPE}
.export TARGET_ARCH
.endif
#
WITH_SYSTEM_COMPILER=
WITH_SYSTEM_LINKER=
#
WITH_ELFTOOLCHAIN_BOOTSTRAP=
#Disables avoiding bootstrap: WITHOUT_LLVM_TARGET_ALL=
WITHOUT_LLVM_TARGET_AARCH64=
WITH_LLVM_TARGET_ARM=
WITHOUT_LLVM_TARGET_MIPS=
WITHOUT_LLVM_TARGET_POWERPC=
WITHOUT_LLVM_TARGET_RISCV=
WITHOUT_LLVM_TARGET_X86=
WITH_CLANG=
WITH_CLANG_IS_CC=
WITH_CLANG_FULL=
WITH_CLANG_EXTRAS=
WITH_LLD=
WITH_LLD_IS_LD=
#
WITH_LLDB=
#
WITH_BOOT=
#
WITHOUT_WERROR=
MALLOC_PRODUCTION=
WITH_MALLOC_PRODUCTION=
WITHOUT_ASSERT_DEBUG=
WITHOUT_LLVM_ASSERTIONS=
#
# Avoid stripping but do not control host -g status as well:
DEBUG_FLAGS+=
#
WITH_REPRODUCIBLE_BUILD=
WITH_DEBUG_FILES=
#
XCFLAGS+= -mcpu=cortex-a7
XCXXFLAGS+= -mcpu=cortex-a7
# There is no XCPPFLAGS but XCPP gets XCFLAGS content.



===
Mark Millard
marklmi at yahoo.com
( dsl-only.net went
away in early 2018-Mar)