Merge bitcoin/bitcoin#35649: depends: move FreeBSD SDK handling to CI

22ac4ad949 ci: ensure we use correct lld version in OpenBSD job (fanquake)
495f43f7b3 ci: FreeBSD 15.1 (fanquake)
244739db9d depends: move FreeBSD SDK handling to CI (fanquake)

Pull request description:

  Followup to https://github.com/bitcoin/bitcoin/pull/35397#discussion_r3493131172, which partially reverts changes from #34491.

  Also, make sure we install the correct version of `lld` in OpenBSD job.

ACKs for top commit:
  willcl-ark:
    ACK 22ac4ad949

Tree-SHA512: 0ce4bdebbeaf5a0c65f2fa4ae177853be246e69a8cab3943cad610a32e990b1d199ae3795d99b889a1d47dbc9c27e0311b026e26ce9f23312581056183dd0a1f

ci/test/00_setup_env_freebsd_cross.sh

@@ -9,13 +9,25 @@ export LC_ALL=C.UTF-8
 export CONTAINER_NAME=ci_freebsd_cross
 export CI_IMAGE_NAME_TAG="mirror.gcr.io/ubuntu:26.04"
 export APT_LLVM_V="22"
-export FREEBSD_VERSION=15.0
-export PACKAGES="clang-${APT_LLVM_V} llvm-${APT_LLVM_V} lld"
 export HOST=x86_64-unknown-freebsd
-export DEP_OPTS="build_CC=clang build_CXX=clang++ AR=llvm-ar-${APT_LLVM_V} STRIP=llvm-strip-${APT_LLVM_V} NM=llvm-nm-${APT_LLVM_V} RANLIB=llvm-ranlib-${APT_LLVM_V}"
+export FREEBSD_VERSION=15.1
+export FREEBSD_SDK_BASENAME="freebsd-${HOST}-${FREEBSD_VERSION}"
+export PACKAGES="clang-${APT_LLVM_V} llvm-${APT_LLVM_V} lld-${APT_LLVM_V}"
+export SYSROOT="--sysroot=${DEPENDS_DIR}/SDKs/${FREEBSD_SDK_BASENAME}"
+export DEP_OPTS="build_CC=clang build_CXX=clang++ \
+ CC='clang --target=${HOST} ${SYSROOT}' \
+ CXX='clang++ --target=${HOST} ${SYSROOT} -stdlib=libc++' \
+ LDFLAGS='-Wc,-fuse-ld=lld -fuse-ld=lld' \
+ AR=llvm-ar-${APT_LLVM_V} \
+ NM=llvm-nm-${APT_LLVM_V} \
+ OBJCOPY=llvm-objcopy-${APT_LLVM_V} \
+ OBJDUMP=llvm-objdump-${APT_LLVM_V} \
+ RANLIB=llvm-ranlib-${APT_LLVM_V} \
+ STRIP=llvm-strip-${APT_LLVM_V}"
 export GOAL="install"
 export BITCOIN_CONFIG="\
  --preset=dev-mode \
+ -DCMAKE_LINKER_TYPE=LLD \
  -DREDUCE_EXPORTS=ON \
  -DWITH_USDT=OFF \
 "

ci/test/00_setup_env_openbsd_cross.sh

@@ -12,7 +12,7 @@ export APT_LLVM_V="22"
 export HOST=x86_64-unknown-openbsd
 export OPENBSD_VERSION=7.9
 export OPENBSD_SDK_BASENAME="openbsd-${HOST}-${OPENBSD_VERSION}"
-export PACKAGES="clang-${APT_LLVM_V} llvm-${APT_LLVM_V} lld"
+export PACKAGES="clang-${APT_LLVM_V} llvm-${APT_LLVM_V} lld-${APT_LLVM_V}"
 export SYSROOT="--sysroot=${DEPENDS_DIR}/SDKs/${OPENBSD_SDK_BASENAME}"
 export DEP_OPTS="build_CC=clang build_CXX=clang++ \
  CC='clang --target=${HOST} ${SYSROOT}' \

ci/test/01_base_install.sh

@@ -118,8 +118,6 @@ if [ -n "$XCODE_VERSION" ] && [ ! -d "${DEPENDS_DIR}/SDKs/${OSX_SDK_BASENAME}" ]
   tar -C "${DEPENDS_DIR}/SDKs" -xf "$OSX_SDK_PATH"
 fi
 
-FREEBSD_SDK_BASENAME="freebsd-${HOST}-${FREEBSD_VERSION}"
-
 if [ -n "$FREEBSD_VERSION" ] && [ ! -d "${DEPENDS_DIR}/SDKs/${FREEBSD_SDK_BASENAME}" ]; then
   FREEBSD_SDK_FILENAME="base-${FREEBSD_VERSION}.txz"
   FREEBSD_SDK_PATH="${DEPENDS_DIR}/sdk-sources/${FREEBSD_SDK_FILENAME}"

depends/hosts/freebsd.mk

@@ -1,26 +1,6 @@
-FREEBSD_VERSION ?= 15.0
-FREEBSD_SDK=$(SDK_PATH)/freebsd-$(host)-$(FREEBSD_VERSION)/
-
-clang_prog=$(shell command -v clang)
-clangxx_prog=$(shell command -v clang++)
-
-freebsd_AR=$(shell command -v llvm-ar)
-freebsd_NM=$(shell command -v llvm-nm)
-freebsd_OBJCOPY=$(shell command -v llvm-objcopy)
-freebsd_OBJDUMP=$(shell command -v llvm-objdump)
-freebsd_RANLIB=$(shell command -v llvm-ranlib)
-freebsd_STRIP=$(shell command -v llvm-strip)
-
-
-freebsd_CC=$(clang_prog) --target=$(host) \
-              --sysroot=$(FREEBSD_SDK)
-
-freebsd_CXX=$(clangxx_prog) --target=$(host) \
-              --sysroot=$(FREEBSD_SDK) -stdlib=libc++
-
 freebsd_CFLAGS=
 freebsd_CXXFLAGS=
-freebsd_LDFLAGS=-fuse-ld=lld
+freebsd_LDFLAGS=
 
 freebsd_release_CFLAGS=-O2
 freebsd_release_CXXFLAGS=$(freebsd_release_CFLAGS)
@@ -28,4 +8,25 @@ freebsd_release_CXXFLAGS=$(freebsd_release_CFLAGS)
 freebsd_debug_CFLAGS=-O1 -g
 freebsd_debug_CXXFLAGS=$(freebsd_debug_CFLAGS)
 
+ifeq (86,$(findstring 86,$(build_arch)))
+i686_freebsd_CC=clang -m32
+i686_freebsd_CXX=clang++ -m32
+i686_freebsd_AR=ar
+i686_freebsd_RANLIB=ranlib
+i686_freebsd_NM=nm
+i686_freebsd_STRIP=strip
+
+x86_64_freebsd_CC=clang -m64
+x86_64_freebsd_CXX=clang++ -m64
+x86_64_freebsd_AR=ar
+x86_64_freebsd_RANLIB=ranlib
+x86_64_freebsd_NM=nm
+x86_64_freebsd_STRIP=strip
+else
+i686_freebsd_CC=$(default_host_CC) -m32
+i686_freebsd_CXX=$(default_host_CXX) -m32
+x86_64_freebsd_CC=$(default_host_CC) -m64
+x86_64_freebsd_CXX=$(default_host_CXX) -m64
+endif
+
 freebsd_cmake_system_name=FreeBSD