svn commit: r335706 - in head: . share/mk tools/build/options
Bryan Drewery
bdrewery at FreeBSD.org
Wed Jun 27 16:57:54 UTC 2018
Author: bdrewery
Date: Wed Jun 27 16:57:51 2018
New Revision: 335706
URL: https://svnweb.freebsd.org/changeset/base/335706
Log:
Add LLVM_TARGET_ALL option.
LLVM_TARGET_* will auto be set based on LLVM_TARGET_ALL and MK_CLANG.
If LLVM_TARGET_ALL is disabled, during a cross-build, then SYSTEM_COMPILER
and SYSTEM_LINKER are auto disabled.
This option should be used by users rather than the per-arch LLVM_TARGET
options as it is simpler to maintain for them should the supported
target list change.
MFC after: 2 weeks
Reviewed by: sbruno, dim
Sponsored by: Dell EMC
Differential Revision: https://reviews.freebsd.org/D16020
Added:
head/tools/build/options/WITHOUT_LLVM_TARGET_ALL (contents, props changed)
head/tools/build/options/WITH_LLVM_TARGET_ALL (contents, props changed)
Modified:
head/Makefile.inc1
head/share/mk/src.opts.mk
Modified: head/Makefile.inc1
==============================================================================
--- head/Makefile.inc1 Wed Jun 27 16:57:47 2018 (r335705)
+++ head/Makefile.inc1 Wed Jun 27 16:57:51 2018 (r335706)
@@ -130,6 +130,15 @@ MACHINE_TRIPLE?=${MACHINE_ARCH:S/amd64/x86_64/:C/hf$//
TARGET_ABI?= unknown
TARGET_TRIPLE?= ${TARGET_ARCH:S/amd64/x86_64/:C/hf$//:S/mipsn32/mips64/}-${TARGET_ABI}-freebsd12.0
+# If all targets are disabled for system llvm then don't expect it to work
+# for cross-builds.
+.if ${MK_LLVM_TARGET_ALL} == "no" && \
+ ${MACHINE} != ${TARGET} && ${MACHINE_ARCH} != ${TARGET_ARCH} && \
+ !make(showconfig)
+MK_SYSTEM_COMPILER= no
+MK_SYSTEM_LINKER= no
+.endif
+
# Handle external binutils.
.if defined(CROSS_TOOLCHAIN_PREFIX)
CROSS_BINUTILS_PREFIX?=${CROSS_TOOLCHAIN_PREFIX}
Modified: head/share/mk/src.opts.mk
==============================================================================
--- head/share/mk/src.opts.mk Wed Jun 27 16:57:47 2018 (r335705)
+++ head/share/mk/src.opts.mk Wed Jun 27 16:57:51 2018 (r335706)
@@ -211,6 +211,7 @@ __DEFAULT_NO_OPTIONS = \
# RIGHT option is disabled.
__DEFAULT_DEPENDENT_OPTIONS= \
CLANG_FULL/CLANG \
+ LLVM_TARGET_ALL/CLANG \
# MK_*_SUPPORT options which default to "yes" unless their corresponding
# MK_* variable is set to "no".
@@ -249,6 +250,27 @@ __TT=${TARGET}
__TT=${MACHINE}
.endif
+# All supported backends for LLVM_TARGET_XXX
+__LLVM_TARGETS= \
+ aarch64 \
+ arm \
+ mips \
+ powerpc \
+ sparc \
+ x86
+__LLVM_TARGET_FILT= C/(amd64|i386)/x86/:S/sparc64/sparc/:S/arm64/aarch64/
+# Default the given TARGET_ARCH's LLVM_TARGET support to the value of
+# MK_CLANG.
+# Default the rest of the LLVM_TARGETs to the value of MK_LLVM_TARGET_ALL
+# which is based on MK_CLANG.
+.for __llt in ${__LLVM_TARGETS}
+.if ${__llt} != ${__T:${__LLVM_TARGET_FILT}}
+__DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu}/LLVM_TARGET_ALL
+.else
+__DEFAULT_DEPENDENT_OPTIONS+= LLVM_TARGET_${__llt:${__LLVM_TARGET_FILT}:tu}/CLANG
+.endif
+.endfor
+
.include <bsd.compiler.mk>
# If the compiler is not C++11 capable, disable Clang and use GCC instead.
# This means that architectures that have GCC 4.2 as default can not
@@ -258,23 +280,17 @@ __TT=${MACHINE}
${__T} == "amd64" || ${__TT} == "arm" || ${__T} == "i386")
# Clang is enabled, and will be installed as the default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD
-__DEFAULT_YES_OPTIONS+=LLVM_TARGET_AARCH64 LLVM_TARGET_ARM LLVM_TARGET_MIPS
-__DEFAULT_YES_OPTIONS+=LLVM_TARGET_POWERPC LLVM_TARGET_SPARC LLVM_TARGET_X86
__DEFAULT_NO_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX GPL_DTC
.elif ${COMPILER_FEATURES:Mc++11} && ${__T:Mriscv*} == "" && ${__T} != "sparc64"
# If an external compiler that supports C++11 is used as ${CC} and Clang
# supports the target, then Clang is enabled but GCC is installed as the
# default /usr/bin/cc.
__DEFAULT_YES_OPTIONS+=CLANG GCC GCC_BOOTSTRAP GNUCXX GPL_DTC LLD
-__DEFAULT_YES_OPTIONS+=LLVM_TARGET_AARCH64 LLVM_TARGET_ARM LLVM_TARGET_MIPS
-__DEFAULT_YES_OPTIONS+=LLVM_TARGET_POWERPC LLVM_TARGET_SPARC LLVM_TARGET_X86
__DEFAULT_NO_OPTIONS+=CLANG_BOOTSTRAP CLANG_IS_CC
.else
# Everything else disables Clang, and uses GCC instead.
__DEFAULT_YES_OPTIONS+=GCC GCC_BOOTSTRAP GNUCXX GPL_DTC
__DEFAULT_NO_OPTIONS+=CLANG CLANG_BOOTSTRAP CLANG_IS_CC LLD
-__DEFAULT_NO_OPTIONS+=LLVM_TARGET_AARCH64 LLVM_TARGET_ARM LLVM_TARGET_MIPS
-__DEFAULT_NO_OPTIONS+=LLVM_TARGET_POWERPC LLVM_TARGET_SPARC LLVM_TARGET_X86
.endif
# In-tree binutils/gcc are older versions without modern architecture support.
.if ${__T} == "aarch64" || ${__T:Mriscv*} != ""
Added: head/tools/build/options/WITHOUT_LLVM_TARGET_ALL
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/build/options/WITHOUT_LLVM_TARGET_ALL Wed Jun 27 16:57:51 2018 (r335706)
@@ -0,0 +1,3 @@
+.\" $FreeBSD$
+Set to only build the required LLVM target support.
+This option is preferred to specific target support options.
Added: head/tools/build/options/WITH_LLVM_TARGET_ALL
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/tools/build/options/WITH_LLVM_TARGET_ALL Wed Jun 27 16:57:51 2018 (r335706)
@@ -0,0 +1,2 @@
+.\" $FreeBSD$
+Set to build support for all LLVM targets.
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