Macho-embedded: update build script for newer Clang behaviour.

    
Clang now uses the *-apple-macho triples for embedded targets using MachO. The
environment makes less pretences to be running an actual Mach kernel with all
the support that would imply, so a few changes are needed to the build scripts:
    
+ The Apple way of detecting endianness applies in all cases so drop the
  __MACH__ test.
+ A quick rename since "darwin_embedded" no longer makes any sense. If there's
  no Mach going on, there's certainly no Darwin.
+ Change how we test for support for a platform. The functions we build don't
  need any SDK support (stdio.h, ...) so we don't need to check for it.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@199731 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 0 insertions, 269 deletions

diff --git a/make/platform/clang_darwin_embedded.mk b/make/platform/clang_darwin_embedded.mk
deleted file mode 100644
index 4398c12ee..000000000
--- a/make/platform/clang_darwin_embedded.mk
+++ /dev/null
@@ -1,269 +0,0 @@
-# These are the functions which clang needs when it is targetting a previous
-# version of the OS. The issue is that the backend may use functions which were
-# not present in the libgcc that shipped on the platform. In such cases, we link
-# with a version of the library which contains private_extern definitions of all
-# the extra functions which might be referenced.
-
-Description := Static runtime libraries for embedded clang/Darwin
-
-# A function that ensures we don't try to build for architectures that we
-# don't have working toolchains for.
-CheckArches = \
-  $(shell \
-    result=""; \
-    for arch in $(1); do \
-      if $(CC) -arch $$arch -c \
-	  -integrated-as \
-	  $(ProjSrcRoot)/make/platform/clang_darwin_test_input.c \
-	  -isysroot $(ProjSrcRoot)/SDKs/darwin \
-	  -o /dev/null > /dev/null 2> /dev/null; then \
-        result="$$result$$arch "; \
-      else \
-	printf 1>&2 \
-	  "warning: clang_darwin.mk: dropping arch '$$arch' from lib '$(2)'\n"; \
-      fi; \
-    done; \
-    echo $$result)
-
-XCRun = \
-  $(shell \
-    result=`xcrun -find $(1) 2> /dev/null`; \
-    if [ "$$?" != "0" ]; then result=$(1); fi; \
-    echo $$result)
-
-###
-
-CC       := $(call XCRun,clang)
-AR       := $(call XCRun,ar)
-RANLIB   := $(call XCRun,ranlib)
-STRIP    := $(call XCRun,strip)
-LIPO     := $(call XCRun,lipo)
-DSYMUTIL := $(call XCRun,dsymutil)
-
-Configs :=
-UniversalArchs :=
-
-# Soft-float version of the runtime. No floating-point instructions will be used
-# and the ABI (out of necessity) passes floating values in normal registers:
-# non-VFP variant of the AAPCS.
-UniversalArchs.soft_static := $(call CheckArches,armv6m armv7m armv7em armv7,soft_static)
-Configs += $(if $(UniversalArchs.soft_static),soft_static)
-
-# Hard-float version of the runtime. On ARM VFP instructions and registers are
-# allowed, and floating point values get passed in them. VFP variant of the
-# AAPCS.
-UniversalArchs.hard_static := $(call CheckArches,armv7em armv7 i386 x86_64,hard_static)
-Configs += $(if $(UniversalArchs.hard_static),hard_static)
-
-UniversalArchs.soft_pic := $(call CheckArches,armv6m armv7m armv7em armv7,soft_pic)
-Configs += $(if $(UniversalArchs.soft_pic),soft_pic)
-
-UniversalArchs.hard_pic := $(call CheckArches,armv7em armv7 i386 x86_64,hard_pic)
-Configs += $(if $(UniversalArchs.hard_pic),hard_pic)
-
-CFLAGS := -Wall -Werror -Oz -fomit-frame-pointer -ffreestanding
-
-PIC_CFLAGS := -fPIC
-STATIC_CFLAGS := -static
-
-CFLAGS_SOFT := -mfloat-abi=soft
-CFLAGS_HARD := -mfloat-abi=hard
-
-CFLAGS_ARMV7 := -target thumbv7-apple-darwin-eabi
-CFLAGS_I386  := -march=pentium
-
-CFLAGS.soft_static := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_SOFT)
-CFLAGS.hard_static := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_HARD)
-CFLAGS.soft_pic    := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_SOFT)
-CFLAGS.hard_pic    := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_HARD)
-
-CFLAGS.soft_static.armv7 := $(CFLAGS.soft_static) $(CFLAGS_ARMV7)
-CFLAGS.hard_static.armv7 := $(CFLAGS.hard_static) $(CFLAGS_ARMV7)
-CFLAGS.soft_pic.armv7    := $(CFLAGS.soft_pic) $(CFLAGS_ARMV7)
-CFLAGS.hard_pic.armv7    := $(CFLAGS.hard_pic) $(CFLAGS_ARMV7)
-
-# x86 platforms ignore -mfloat-abi options and complain about doing so. Despite
-# this they're hard-float.
-CFLAGS.hard_static.i386   := $(CFLAGS) $(STATIC_CFLAGS) $(CFLAGS_I386)
-CFLAGS.hard_pic.i386      := $(CFLAGS) $(PIC_CFLAGS) $(CFLAGS_I386)
-CFLAGS.hard_static.x86_64 := $(CFLAGS) $(STATIC_CFLAGS)
-CFLAGS.hard_pic.x86_64    := $(CFLAGS) $(PIC_CFLAGS)
-
-# Functions not wanted:
-#   + eprintf is obsolete anyway
-#   + *vfp: designed for Thumb1 CPUs with VFPv2
-
-COMMON_FUNCTIONS := \
-	absvdi2 \
-	absvsi2 \
-	addvdi3 \
-	addvsi3 \
-	ashldi3 \
-	ashrdi3 \
-	bswapdi2 \
-	bswapsi2 \
-	clzdi2 \
-	clzsi2 \
-	cmpdi2 \
-	ctzdi2 \
-	ctzsi2 \
-	divdc3 \
-	divdi3 \
-	divsc3 \
-	divmodsi4 \
-	udivmodsi4 \
-	do_global_dtors \
-	ffsdi2 \
-	fixdfdi \
-	fixsfdi \
-	fixunsdfdi \
-	fixunsdfsi \
-	fixunssfdi \
-	fixunssfsi \
-	floatdidf \
-	floatdisf \
-	floatundidf \
-	floatundisf \
-	gcc_bcmp \
-	lshrdi3 \
-	moddi3 \
-	muldc3 \
-	muldi3 \
-	mulsc3 \
-	mulvdi3 \
-	mulvsi3 \
-	negdi2 \
-	negvdi2 \
-	negvsi2 \
-	paritydi2 \
-	paritysi2 \
-	popcountdi2 \
-	popcountsi2 \
-	powidf2 \
-	powisf2 \
-	subvdi3 \
-	subvsi3 \
-	ucmpdi2 \
-	udiv_w_sdiv \
-	udivdi3 \
-	udivmoddi4 \
-	umoddi3 \
-	adddf3 \
-	addsf3 \
-	cmpdf2 \
-	cmpsf2 \
-	div0 \
-	divdf3 \
-	divsf3 \
-	divsi3 \
-	extendsfdf2 \
-	ffssi2 \
-	fixdfsi \
-	fixsfsi \
-	floatsidf \
-	floatsisf \
-	floatunsidf \
-	floatunsisf \
-	comparedf2 \
-	comparesf2 \
-	modsi3 \
-	muldf3 \
-	mulsf3 \
-	negdf2 \
-	negsf2 \
-	subdf3 \
-	subsf3 \
-	truncdfsf2 \
-	udivsi3 \
-	umodsi3 \
-	unorddf2 \
-	unordsf2
-
-ARM_FUNCTIONS := \
-	aeabi_cdcmpeq \
-	aeabi_cdrcmple \
-	aeabi_cfcmpeq \
-	aeabi_cfrcmple \
-	aeabi_dcmpeq \
-	aeabi_dcmpge \
-	aeabi_dcmpgt \
-	aeabi_dcmple \
-	aeabi_dcmplt \
-	aeabi_drsub \
-	aeabi_fcmpeq \
-	aeabi_fcmpge \
-	aeabi_fcmpgt \
-	aeabi_fcmple \
-	aeabi_fcmplt \
-	aeabi_frsub \
-	aeabi_idivmod \
-	aeabi_uidivmod \
-
-# ARM Assembly implementation which requires Thumb2 (i.e. won't work on v6M).
-THUMB2_FUNCTIONS := \
-	switch16 \
-	switch32 \
-	switch8 \
-	switchu8 \
-
-I386_FUNCTIONS :=  \
-	i686.get_pc_thunk.eax \
-	i686.get_pc_thunk.ebp \
-	i686.get_pc_thunk.ebx \
-	i686.get_pc_thunk.ecx \
-	i686.get_pc_thunk.edi \
-	i686.get_pc_thunk.edx \
-	i686.get_pc_thunk.esi
-
-# FIXME: Currently, compiler-rt is missing implementations for a number of the
-# functions. Filter them out for now.
-MISSING_FUNCTIONS := \
-	cmpdf2 cmpsf2 div0 \
-	ffssi2 \
-	udiv_w_sdiv unorddf2 unordsf2 bswapdi2 \
-	bswapsi2 \
-	gcc_bcmp \
-	do_global_dtors \
-	i686.get_pc_thunk.eax i686.get_pc_thunk.ebp i686.get_pc_thunk.ebx \
-	i686.get_pc_thunk.ecx i686.get_pc_thunk.edi i686.get_pc_thunk.edx \
-	i686.get_pc_thunk.esi \
-	aeabi_cdcmpeq aeabi_cdrcmple aeabi_cfcmpeq aeabi_cfrcmple aeabi_dcmpeq \
-	aeabi_dcmpge aeabi_dcmpgt aeabi_dcmple aeabi_dcmplt aeabi_drsub \
-	aeabi_fcmpeq \ aeabi_fcmpge aeabi_fcmpgt aeabi_fcmple aeabi_fcmplt \
-	aeabi_frsub aeabi_idivmod aeabi_uidivmod
-
-FUNCTIONS_ARMV6M  := $(COMMON_FUNCTIONS) $(ARM_FUNCTIONS)
-FUNCTIONS_ARM_ALL := $(COMMON_FUNCTIONS) $(ARM_FUNCTIONS) $(THUMB2_FUNCTIONS)
-FUNCTIONS_I386    := $(COMMON_FUNCTIONS) $(I386_FUNCTIONS)
-FUNCTIONS_X86_64  := $(COMMON_FUNCTIONS)
-
-FUNCTIONS_ARMV6M := \
-	$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_ARMV6M))
-FUNCTIONS_ARM_ALL := \
-	$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_ARM_ALL))
-FUNCTIONS_I386 := \
-	$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_I386))
-FUNCTIONS_X86_64 := \
-	$(filter-out $(MISSING_FUNCTIONS),$(FUNCTIONS_X86_64))
-
-FUNCTIONS.soft_static.armv6m := $(FUNCTIONS_ARMV6M)
-FUNCTIONS.soft_pic.armv6m    := $(FUNCTIONS_ARMV6M)
-
-FUNCTIONS.soft_static.armv7m := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.soft_pic.armv7m    := $(FUNCTIONS_ARM_ALL)
-
-FUNCTIONS.soft_static.armv7em := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.hard_static.armv7em := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.soft_pic.armv7em    := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.hard_pic.armv7em    := $(FUNCTIONS_ARM_ALL)
-
-FUNCTIONS.soft_static.armv7 := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.hard_static.armv7 := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.soft_pic.armv7    := $(FUNCTIONS_ARM_ALL)
-FUNCTIONS.hard_pic.armv7    := $(FUNCTIONS_ARM_ALL)
-
-FUNCTIONS.hard_static.i386 := $(FUNCTIONS_I386)
-FUNCTIONS.hard_pic.i386    := $(FUNCTIONS_I386)
-
-FUNCTIONS.hard_static.x86_64 := $(FUNCTIONS_X86_64)
-FUNCTIONS.hard_pic.x86_64    := $(FUNCTIONS_X86_64)