mk/llvm.mk

   1 # Copyright 2012 The Rust Project Developers. See the COPYRIGHT
   2 # file at the top-level directory of this distribution and at
   3 # http://rust-lang.org/COPYRIGHT.
   4 #
   5 # Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 # http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 # <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 # option. This file may not be copied, modified, or distributed
   9 # except according to those terms.
  10
  11
  12 ifdef CFG_ENABLE_FAST_MAKE
  13 LLVM_DEPS := $(S)/.gitmodules
  14 else
  15
  16 # This is just a rough approximation of LLVM deps
  17 LLVM_DEPS_SRC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)lib,*cpp *hpp)
  18 LLVM_DEPS_INC=$(call rwildcard,$(CFG_LLVM_SRC_DIR)include,*cpp *hpp)
  19 LLVM_DEPS=$(LLVM_DEPS_SRC) $(LLVM_DEPS_INC)
  20 endif
  21
  22 ifdef CFG_DISABLE_OPTIMIZE_LLVM
  23 LLVM_BUILD_CONFIG_MODE := Debug
  24 else
  25 LLVM_BUILD_CONFIG_MODE := Release
  26 endif
  27
  28 define DEF_LLVM_RULES
  29
  30 ifeq ($(1),$$(CFG_BUILD))
  31 LLVM_DEPS_TARGET_$(1) := $$(LLVM_DEPS)
  32 else
  33 LLVM_DEPS_TARGET_$(1) := $$(LLVM_DEPS) $$(LLVM_CONFIG_$$(CFG_BUILD))
  34 endif
  35
  36 # If CFG_LLVM_ROOT is defined then we don't build LLVM ourselves
  37 ifeq ($(CFG_LLVM_ROOT),)
  38
  39 LLVM_STAMP_$(1) = $(S)src/rustllvm/llvm-auto-clean-trigger
  40 LLVM_DONE_$(1) = $$(CFG_LLVM_BUILD_DIR_$(1))/llvm-finished-building
  41
  42 $$(LLVM_CONFIG_$(1)): $$(LLVM_DONE_$(1))
  43
  44 ifneq ($$(CFG_NINJA),)
  45 BUILD_LLVM_$(1) := $$(CFG_NINJA) -C $$(CFG_LLVM_BUILD_DIR_$(1))
  46 else ifeq ($$(findstring msvc,$(1)),msvc)
  47 BUILD_LLVM_$(1) := $$(CFG_CMAKE) --build $$(CFG_LLVM_BUILD_DIR_$(1)) \
  48                         --config $$(LLVM_BUILD_CONFIG_MODE)
  49 else
  50 BUILD_LLVM_$(1) := $$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1))
  51 endif
  52
  53 $$(LLVM_DONE_$(1)): $$(LLVM_DEPS_TARGET_$(1)) $$(LLVM_STAMP_$(1))
  54         @$$(call E, cmake: llvm)
  55         $$(Q)if ! cmp $$(LLVM_STAMP_$(1)) $$(LLVM_DONE_$(1)); then \
  56                 $$(MAKE) clean-llvm$(1); \
  57                 $$(BUILD_LLVM_$(1)); \
  58         fi
  59         $$(Q)cp $$(LLVM_STAMP_$(1)) $$@
  60
  61 ifneq ($$(CFG_NINJA),)
  62 clean-llvm$(1):
  63         @$$(call E, clean: llvm)
  64         $$(Q)$$(CFG_NINJA) -C $$(CFG_LLVM_BUILD_DIR_$(1)) -t clean
  65 else ifeq ($$(findstring msvc,$(1)),msvc)
  66 clean-llvm$(1):
  67         @$$(call E, clean: llvm)
  68         $$(Q)$$(CFG_CMAKE) --build $$(CFG_LLVM_BUILD_DIR_$(1)) \
  69                 --config $$(LLVM_BUILD_CONFIG_MODE) \
  70                 --target clean
  71 else
  72 clean-llvm$(1):
  73         @$$(call E, clean: llvm)
  74         $$(Q)$$(MAKE) -C $$(CFG_LLVM_BUILD_DIR_$(1)) clean
  75 endif
  76
  77 else
  78 clean-llvm$(1):
  79 endif
  80
  81 $$(LLVM_AR_$(1)): $$(LLVM_CONFIG_$(1))
  82
  83 ifeq ($$(CFG_ENABLE_LLVM_STATIC_STDCPP),1)
  84 LLVM_STDCPP_RUSTFLAGS_$(1) = -L "$$(dir $$(shell $$(CC_$(1)) $$(CFG_GCCISH_CFLAGS_$(1)) \
  85                                         -print-file-name=lib$(CFG_STDCPP_NAME).a))"
  86 else
  87 LLVM_STDCPP_RUSTFLAGS_$(1) =
  88 endif
  89
  90
  91 # LLVM linkage:
  92 # Note: Filter with llvm-config so that optional targets which aren't present
  93 # don't cause errors (ie PNaCl's target is only present within PNaCl's LLVM
  94 # fork).
  95 LLVM_LINKAGE_PATH_$(1):=$$(abspath $$(RT_OUTPUT_DIR_$(1))/llvmdeps.rs)
  96 $$(LLVM_LINKAGE_PATH_$(1)): $(S)src/etc/mklldeps.py $$(LLVM_CONFIG_$(1))
  97         $(Q)$(CFG_PYTHON) "$$<" "$$@" "$$(filter $$(shell \
  98                                 $$(LLVM_CONFIG_$(1)) --components), \
  99                         $(LLVM_OPTIONAL_COMPONENTS)) $(LLVM_REQUIRED_COMPONENTS)" \
 100                 "$$(CFG_ENABLE_LLVM_STATIC_STDCPP)" $$(LLVM_CONFIG_$(1)) \
 101                 "$(CFG_STDCPP_NAME)" "$$(CFG_USING_LIBCPP)"
 102 endef
 103
 104 $(foreach host,$(CFG_HOST), \
 105  $(eval $(call DEF_LLVM_RULES,$(host))))
 106
 107 $(foreach host,$(CFG_HOST), \
 108  $(eval LLVM_CONFIGS := $(LLVM_CONFIGS) $(LLVM_CONFIG_$(host))))
 109
 110 # This can't be done in target.mk because it's included before this file.
 111 define LLVM_LINKAGE_DEPS
 112 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.rustc_llvm: $$(LLVM_LINKAGE_PATH_$(2))
 113 RUSTFLAGS$(1)_rustc_llvm_T_$(2) += $$(shell echo $$(LLVM_ALL_COMPONENTS_$(2)) | tr '-' '_' |\
 114         sed -e 's/^ //;s/\([^ ]*\)/\-\-cfg "llvm_component=\\"\1\\""/g')
 115 endef
 116
 117 $(foreach source,$(CFG_HOST), \
 118  $(foreach target,$(CFG_TARGET), \
 119   $(eval $(call LLVM_LINKAGE_DEPS,0,$(target),$(source))) \
 120   $(eval $(call LLVM_LINKAGE_DEPS,1,$(target),$(source))) \
 121   $(eval $(call LLVM_LINKAGE_DEPS,2,$(target),$(source))) \
 122   $(eval $(call LLVM_LINKAGE_DEPS,3,$(target),$(source)))))