1 ##===- clang/runtime/Makefile ------------------------------*- Makefile -*-===##
3 # The LLVM Compiler Infrastructure
5 # This file is distributed under the University of Illinois Open Source
6 # License. See LICENSE.TXT for details.
8 ##===----------------------------------------------------------------------===##
10 # This file defines support for building the Clang runtime libraries (which are
11 # implemented by compiler-rt) and placing them in the proper locations in the
12 # Clang resources directory (i.e., where the driver expects them).
14 ##===----------------------------------------------------------------------===##
17 include $(CLANG_LEVEL)/Makefile
19 CLANG_VERSION := $(word 3,$(shell grep "CLANG_VERSION " \
20 $(PROJ_OBJ_DIR)/$(CLANG_LEVEL)/include/clang/Basic/Version.inc))
22 ResourceDir := $(PROJ_OBJ_ROOT)/$(BuildMode)/lib/clang/$(CLANG_VERSION)
23 PROJ_resources := $(DESTDIR)$(PROJ_prefix)/lib/clang/$(CLANG_VERSION)
25 ResourceLibDir := $(ResourceDir)/lib
26 PROJ_resources_lib := $(PROJ_resources)/lib
28 # Expect compiler-rt to be in llvm/projects/compiler-rt
29 COMPILERRT_SRC_ROOT := $(LLVM_SRC_ROOT)/projects/compiler-rt
31 # Additional flags to pass to Clang.
32 CLANG_CCFLAGS := -no-integrated-as
34 ifneq ($(CLANG_NO_RUNTIME),1)
35 ifeq ($(shell test -d $(COMPILERRT_SRC_ROOT) && echo OK),OK)
37 # Select the compiler-rt configuration to use, and install directory.
39 # FIXME: Eventually, we want some kind of configure support for this. We want to
40 # build/install runtime libraries for as many targets as clang was configured to
45 RuntimeLibrary.darwin.Configs = eprintf 10.4 ios cc_kext
47 # On Darwin, fake Clang into using the iOS assembler (since compiler-rt wants to
50 CLANG_CCFLAGS += -ccc-install-dir \
51 /Developer/Platforms/iPhoneOS.platform/Developer/usr/bin/
55 # Rule to build the compiler-rt libraries we need.
57 # We build all the libraries in a single shot to avoid recursive make as much as
59 BuildRuntimeLibraries:
60 $(Verb) $(MAKE) -C $(COMPILERRT_SRC_ROOT) \
61 ProjSrcRoot=$(COMPILERRT_SRC_ROOT) \
62 ProjObjRoot=$(PROJ_OBJ_DIR) \
63 CC="$(ToolDir)/clang $(CLANG_CCFLAGS)" \
64 $(RuntimeDirs:%=clang_%)
65 .PHONY: BuildRuntimeLibraries
66 CleanRuntimeLibraries:
67 $(Verb) $(MAKE) -C $(COMPILERRT_SRC_ROOT) \
68 ProjSrcRoot=$(COMPILERRT_SRC_ROOT) \
69 ProjObjRoot=$(PROJ_OBJ_DIR) \
71 .PHONY: CleanRuntimeLibraries
73 $(PROJ_resources_lib):
76 # Expand rules for copying/installing each individual library. We can't use
77 # implicit rules here because we need to match against multiple things.
78 define RuntimeLibraryTemplate
79 $(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a: BuildRuntimeLibraries
81 .PRECIOUS: $(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a
83 # Rule to copy the libraries to their resource directory location.
84 $(ResourceLibDir)/$1/libclang_rt.%.a: \
85 $(PROJ_OBJ_DIR)/clang_$1/%/libcompiler_rt.a \
86 $(ResourceLibDir)/$1/.dir
87 $(Echo) Copying runtime library $1/$$* to build dir
88 $(Verb) cp $(PROJ_OBJ_DIR)/clang_$1/$$*/libcompiler_rt.a $$@
90 $(RuntimeLibrary.$1.Configs:%=$(ResourceLibDir)/$1/libclang_rt.%.a)
91 .PHONY: RuntimeLibrary.$1
93 $(PROJ_resources_lib)/$1: $(PROJ_resources_lib)
96 $(PROJ_resources_lib)/$1/libclang_rt.%.a: \
97 $(ResourceLibDir)/$1/libclang_rt.%.a | $(PROJ_resources_lib)/$1
98 $(Echo) Installing compiler runtime library: $1/$$*
99 $(Verb) $(DataInstall) $$< $(PROJ_resources_lib)/$1
101 # Rule to install runtime libraries.
102 RuntimeLibraryInstall.$1: \
103 $(RuntimeLibrary.$1.Configs:%=$(PROJ_resources_lib)/$1/libclang_rt.%.a)
104 .PHONY: RuntimeLibraryInstall.$1
106 $(foreach lib,$(RuntimeDirs), $(eval $(call RuntimeLibraryTemplate,$(lib))))
108 # Hook into the standard Makefile rules.
109 all-local:: $(RuntimeDirs:%=RuntimeLibrary.%)
110 install-local:: $(RuntimeDirs:%=RuntimeLibraryInstall.%)
111 clean-local:: CleanRuntimeLibraries