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platform.mk
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# Copyright 2012-2015 The Rust Project Developers. See the COPYRIGHT
# file at the top-level directory of this distribution and at
# http://rust-lang.org/COPYRIGHT.
#
# Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
# http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
# <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
# option. This file may not be copied, modified, or distributed
# except according to those terms.
# Create variables HOST_<triple> containing the host part
# of each target triple. For example, the triple i686-darwin-macos
# would create a variable HOST_i686-darwin-macos with the value
# i386.
define DEF_HOST_VAR
HOST_$(1) = $(patsubst i%86,i386,$(word 1,$(subst -, ,$(1))))
endef
$(foreach t,$(CFG_TARGET),$(eval $(call DEF_HOST_VAR,$(t))))
$(foreach t,$(CFG_TARGET),$(info cfg: host for $(t) is $(HOST_$(t))))
# Ditto for OSTYPE
define DEF_OSTYPE_VAR
OSTYPE_$(1) = $(subst $(firstword $(subst -, ,$(1)))-,,$(1))
endef
$(foreach t,$(CFG_TARGET),$(eval $(call DEF_OSTYPE_VAR,$(t))))
$(foreach t,$(CFG_TARGET),$(info cfg: os for $(t) is $(OSTYPE_$(t))))
# On Darwin, we need to run dsymutil so the debugging information ends
# up in the right place. On other platforms, it automatically gets
# embedded into the executable, so use a no-op command.
CFG_DSYMUTIL := true
# Hack: not sure how to test if a file exists in make other than this
OS_SUPP = $(patsubst %,--suppressions=%, \
$(wildcard $(CFG_SRC_DIR)src/etc/$(CFG_OSTYPE).supp*))
ifdef CFG_DISABLE_OPTIMIZE_CXX
$(info cfg: disabling C++ optimization (CFG_DISABLE_OPTIMIZE_CXX))
CFG_GCCISH_CFLAGS += -O0
else
CFG_GCCISH_CFLAGS += -O2
endif
# The soname thing is for supporting a statically linked jemalloc.
# see https://blog.mozilla.org/jseward/2012/06/05/valgrind-now-supports-jemalloc-builds-directly/
ifdef CFG_VALGRIND
CFG_VALGRIND += --error-exitcode=100 \
--fair-sched=try \
--quiet \
--soname-synonyms=somalloc=NONE \
--suppressions=$(CFG_SRC_DIR)src/etc/x86.supp \
$(OS_SUPP)
ifdef CFG_ENABLE_HELGRIND
CFG_VALGRIND += --tool=helgrind
else
CFG_VALGRIND += --tool=memcheck \
--leak-check=full
endif
endif
# If we actually want to run Valgrind on a given platform, set this variable
define DEF_GOOD_VALGRIND
ifeq ($(OSTYPE_$(1)),unknown-linux-gnu)
GOOD_VALGRIND_$(1) = 1
endif
ifneq (,$(filter $(OSTYPE_$(1)),apple-darwin freebsd))
ifeq ($(HOST_$(1)),x86_64)
GOOD_VALGRIND_$(1) = 1
endif
endif
ifdef GOOD_VALGRIND_$(t)
$$(info cfg: have good valgrind for $(t))
else
$$(info cfg: no good valgrind for $(t))
endif
endef
$(foreach t,$(CFG_TARGET),$(eval $(call DEF_GOOD_VALGRIND,$(t))))
AR := ar
define SET_FROM_CFG
ifdef CFG_$(1)
ifeq ($(origin $(1)),undefined)
$$(info cfg: using $(1)=$(CFG_$(1)) (CFG_$(1)))
$(1)=$(CFG_$(1))
endif
ifeq ($(origin $(1)),default)
$$(info cfg: using $(1)=$(CFG_$(1)) (CFG_$(1)))
$(1)=$(CFG_$(1))
endif
endif
endef
$(foreach cvar,CC CXX CPP CFLAGS CXXFLAGS CPPFLAGS, \
$(eval $(call SET_FROM_CFG,$(cvar))))
CFG_RLIB_GLOB=lib$(1)-*.rlib
include $(wildcard $(CFG_SRC_DIR)mk/cfg/*.mk)
define ADD_INSTALLED_OBJECTS
INSTALLED_OBJECTS_$(1) += $$(CFG_INSTALLED_OBJECTS_$(1))
REQUIRED_OBJECTS_$(1) += $$(CFG_THIRD_PARTY_OBJECTS_$(1))
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call ADD_INSTALLED_OBJECTS,$(target))))
define DEFINE_LINKER
ifndef LINK_$(1)
LINK_$(1) := $$(CC_$(1))
endif
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call DEFINE_LINKER,$(target))))
define ADD_JEMALLOC_DEP
ifndef CFG_DISABLE_JEMALLOC_$(1)
ifndef CFG_DISABLE_JEMALLOC
RUST_DEPS_std_T_$(1) += alloc_jemalloc
TARGET_CRATES_$(1) += alloc_jemalloc
endif
endif
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call ADD_JEMALLOC_DEP,$(target))))
# The -Qunused-arguments sidesteps spurious warnings from clang
define FILTER_FLAGS
ifeq ($$(CFG_USING_CLANG),1)
ifneq ($(findstring clang,$$(shell $(CC_$(1)) -v)),)
CFG_GCCISH_CFLAGS_$(1) += -Qunused-arguments
CFG_GCCISH_CXXFLAGS_$(1) += -Qunused-arguments
endif
endif
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call FILTER_FLAGS,$(target))))
# Configure various macros to pass gcc or cl.exe style arguments
define CC_MACROS
CFG_CC_INCLUDE_$(1)=-I $$(1)
ifeq ($$(findstring msvc,$(1)),msvc)
CFG_CC_OUTPUT_$(1)=-Fo:$$(1)
CFG_CREATE_ARCHIVE_$(1)='$$(AR_$(1))' -OUT:$$(1)
else
CFG_CC_OUTPUT_$(1)=-o $$(1)
CFG_CREATE_ARCHIVE_$(1)=$$(AR_$(1)) crus $$(1)
endif
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call CC_MACROS,$(target))))
ifeq ($(CFG_CCACHE_CPP2),1)
CCACHE_CPP2=1
export CCACHE_CPP
endif
ifdef CFG_CCACHE_BASEDIR
CCACHE_BASEDIR=$(CFG_CCACHE_BASEDIR)
export CCACHE_BASEDIR
endif
FIND_COMPILER = $(strip $(1:ccache=))
define CFG_MAKE_TOOLCHAIN
# Prepend the tools with their prefix if cross compiling
ifneq ($(CFG_BUILD),$(1))
ifneq ($$(findstring msvc,$(1)),msvc)
CC_$(1)=$(CROSS_PREFIX_$(1))$(CC_$(1))
CXX_$(1)=$(CROSS_PREFIX_$(1))$(CXX_$(1))
CPP_$(1)=$(CROSS_PREFIX_$(1))$(CPP_$(1))
AR_$(1)=$(CROSS_PREFIX_$(1))$(AR_$(1))
LINK_$(1)=$(CROSS_PREFIX_$(1))$(LINK_$(1))
RUSTC_CROSS_FLAGS_$(1)=-C linker=$$(call FIND_COMPILER,$$(LINK_$(1))) \
-C ar=$$(call FIND_COMPILER,$$(AR_$(1))) $(RUSTC_CROSS_FLAGS_$(1))
RUSTC_FLAGS_$(1)=$$(RUSTC_CROSS_FLAGS_$(1)) $(RUSTC_FLAGS_$(1))
endif
endif
CFG_COMPILE_C_$(1) = '$$(call FIND_COMPILER,$$(CC_$(1)))' \
$$(CFLAGS) \
$$(CFG_GCCISH_CFLAGS) \
$$(CFG_GCCISH_CFLAGS_$(1)) \
-c $$(call CFG_CC_OUTPUT_$(1),$$(1)) $$(2)
CFG_LINK_C_$(1) = $$(CC_$(1)) \
$$(LDFLAGS) \
$$(CFG_GCCISH_LINK_FLAGS) -o $$(1) \
$$(CFG_GCCISH_LINK_FLAGS_$(1)) \
$$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2) \
$$(call CFG_INSTALL_NAME_$(1),$$(4))
CFG_COMPILE_CXX_$(1) = '$$(call FIND_COMPILER,$$(CXX_$(1)))' \
$$(CXXFLAGS) \
$$(CFG_GCCISH_CFLAGS) \
$$(CFG_GCCISH_CXXFLAGS) \
$$(CFG_GCCISH_CFLAGS_$(1)) \
$$(CFG_GCCISH_CXXFLAGS_$(1)) \
-c $$(call CFG_CC_OUTPUT_$(1),$$(1)) $$(2)
CFG_LINK_CXX_$(1) = $$(CXX_$(1)) \
$$(LDFLAGS) \
$$(CFG_GCCISH_LINK_FLAGS) -o $$(1) \
$$(CFG_GCCISH_LINK_FLAGS_$(1)) \
$$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2) \
$$(call CFG_INSTALL_NAME_$(1),$$(4))
ifeq ($$(findstring $(HOST_$(1)),arm aarch64 mips mipsel powerpc),)
# On Bitrig, we need the relocation model to be PIC for everything
ifeq (,$(filter $(OSTYPE_$(1)),bitrig))
LLVM_MC_RELOCATION_MODEL="pic"
else
LLVM_MC_RELOCATION_MODEL="default"
endif
# LLVM changed this flag in 3.9
ifdef CFG_LLVM_MC_HAS_RELOCATION_MODEL
LLVM_MC_RELOC_FLAG := -relocation-model=$$(LLVM_MC_RELOCATION_MODEL)
else
LLVM_MC_RELOC_FLAG := -position-independent
endif
# We're using llvm-mc as our assembler because it supports
# .cfi pseudo-ops on mac
CFG_ASSEMBLE_$(1)=$$(CPP_$(1)) -E $$(2) | \
$$(LLVM_MC_$$(CFG_BUILD)) \
-assemble \
$$(LLVM_MC_RELOC_FLAG) \
-filetype=obj \
-triple=$(1) \
-o=$$(1)
else
# For the ARM, AARCH64, MIPS and POWER crosses, use the toolchain assembler
# FIXME: We should be able to use the LLVM assembler
CFG_ASSEMBLE_$(1)=$$(CC_$(1)) $$(CFG_GCCISH_CFLAGS_$(1)) \
$$(2) -c -o $$(1)
endif
endef
$(foreach target,$(CFG_TARGET), \
$(eval $(call CFG_MAKE_TOOLCHAIN,$(target))))