1 # Copyright 2012-2015 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.
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.
12 # Create variables HOST_<triple> containing the host part
13 # of each target triple. For example, the triple i686-darwin-macos
14 # would create a variable HOST_i686-darwin-macos with the value
17 HOST_$(1) = $(subst i686,i386,$(word 1,$(subst -, ,$(1))))
19 $(foreach t,$(CFG_TARGET),$(eval $(call DEF_HOST_VAR,$(t))))
20 $(foreach t,$(CFG_TARGET),$(info cfg: host for $(t) is $(HOST_$(t))))
24 OSTYPE_$(1) = $(subst $(firstword $(subst -, ,$(1)))-,,$(1))
26 $(foreach t,$(CFG_TARGET),$(eval $(call DEF_OSTYPE_VAR,$(t))))
27 $(foreach t,$(CFG_TARGET),$(info cfg: os for $(t) is $(OSTYPE_$(t))))
29 # On Darwin, we need to run dsymutil so the debugging information ends
30 # up in the right place. On other platforms, it automatically gets
31 # embedded into the executable, so use a no-op command.
34 # Hack: not sure how to test if a file exists in make other than this
35 OS_SUPP = $(patsubst %,--suppressions=%, \
36 $(wildcard $(CFG_SRC_DIR)src/etc/$(CFG_OSTYPE).supp*))
38 ifdef CFG_DISABLE_OPTIMIZE_CXX
39 $(info cfg: disabling C++ optimization (CFG_DISABLE_OPTIMIZE_CXX))
40 CFG_GCCISH_CFLAGS += -O0
42 CFG_GCCISH_CFLAGS += -O2
45 # The soname thing is for supporting a statically linked jemalloc.
46 # see https://blog.mozilla.org/jseward/2012/06/05/valgrind-now-supports-jemalloc-builds-directly/
48 CFG_VALGRIND += --error-exitcode=100 \
51 --soname-synonyms=somalloc=NONE \
52 --suppressions=$(CFG_SRC_DIR)src/etc/x86.supp \
54 ifdef CFG_ENABLE_HELGRIND
55 CFG_VALGRIND += --tool=helgrind
57 CFG_VALGRIND += --tool=memcheck \
62 # If we actually want to run Valgrind on a given platform, set this variable
63 define DEF_GOOD_VALGRIND
64 ifeq ($(OSTYPE_$(1)),unknown-linux-gnu)
65 GOOD_VALGRIND_$(1) = 1
67 ifneq (,$(filter $(OSTYPE_$(1)),darwin freebsd))
68 ifeq (HOST_$(1),x86_64)
69 GOOD_VALGRIND_$(1) = 1
73 $(foreach t,$(CFG_TARGET),$(eval $(call DEF_GOOD_VALGRIND,$(t))))
74 $(foreach t,$(CFG_TARGET),$(info cfg: good valgrind for $(t) is $(GOOD_VALGRIND_$(t))))
76 ifneq ($(findstring linux,$(CFG_OSTYPE)),)
78 ifneq ($(CFG_PERF_WITH_LOGFD),)
79 CFG_PERF_TOOL := $(CFG_PERF) stat -r 3 --log-fd 2
81 CFG_PERF_TOOL := $(CFG_PERF) stat -r 3
86 $(CFG_VALGRIND) --tool=cachegrind --cache-sim=yes --branch-sim=yes
88 CFG_PERF_TOOL := /usr/bin/time --verbose
97 ifeq ($(origin $(1)),undefined)
98 $$(info cfg: using $(1)=$(CFG_$(1)) (CFG_$(1)))
101 ifeq ($(origin $(1)),default)
102 $$(info cfg: using $(1)=$(CFG_$(1)) (CFG_$(1)))
108 $(foreach cvar,CC CXX CPP CFLAGS CXXFLAGS CPPFLAGS, \
109 $(eval $(call SET_FROM_CFG,$(cvar))))
111 CFG_RLIB_GLOB=lib$(1)-*.rlib
113 include $(wildcard $(CFG_SRC_DIR)mk/cfg/*.mk)
115 define ADD_INSTALLED_OBJECTS
116 INSTALLED_OBJECTS_$(1) += $$(call CFG_STATIC_LIB_NAME_$(1),morestack) \
117 $$(call CFG_STATIC_LIB_NAME_$(1),compiler-rt)
120 $(foreach target,$(CFG_TARGET), \
121 $(eval $(call ADD_INSTALLED_OBJECTS,$(target))))
125 LINK_$(1) := $$(CC_$(1))
129 $(foreach target,$(CFG_TARGET), \
130 $(eval $(call DEFINE_LINKER,$(target))))
132 # The -Qunused-arguments sidesteps spurious warnings from clang
134 ifeq ($$(CFG_USING_CLANG),1)
135 ifneq ($(findstring clang,$$(shell $(CC_$(1)) -v)),)
136 CFG_GCCISH_CFLAGS_$(1) += -Qunused-arguments
137 CFG_GCCISH_CXXFLAGS_$(1) += -Qunused-arguments
142 $(foreach target,$(CFG_TARGET), \
143 $(eval $(call FILTER_FLAGS,$(target))))
145 # Configure various macros to pass gcc or cl.exe style arguments
147 CFG_CC_INCLUDE_$(1)=-I $$(1)
148 ifeq ($$(findstring msvc,$(1)),msvc)
149 CFG_CC_OUTPUT_$(1)=-Fo:$$(1)
150 CFG_CREATE_ARCHIVE_$(1)=$$(AR_$(1)) -OUT:$$(1)
152 CFG_CC_OUTPUT_$(1)=-o $$(1)
153 CFG_CREATE_ARCHIVE_$(1)=$$(AR_$(1)) crus $$(1)
157 $(foreach target,$(CFG_TARGET), \
158 $(eval $(call CC_MACROS,$(target))))
161 ifeq ($(CFG_CCACHE_CPP2),1)
166 ifdef CFG_CCACHE_BASEDIR
167 CCACHE_BASEDIR=$(CFG_CCACHE_BASEDIR)
168 export CCACHE_BASEDIR
171 FIND_COMPILER = $(word 1,$(1:ccache=))
173 define CFG_MAKE_TOOLCHAIN
174 # Prepend the tools with their prefix if cross compiling
175 ifneq ($(CFG_BUILD),$(1))
176 ifneq ($$(findstring msvc,$(1)),msvc)
177 CC_$(1)=$(CROSS_PREFIX_$(1))$(CC_$(1))
178 CXX_$(1)=$(CROSS_PREFIX_$(1))$(CXX_$(1))
179 CPP_$(1)=$(CROSS_PREFIX_$(1))$(CPP_$(1))
180 AR_$(1)=$(CROSS_PREFIX_$(1))$(AR_$(1))
181 LINK_$(1)=$(CROSS_PREFIX_$(1))$(LINK_$(1))
182 RUSTC_CROSS_FLAGS_$(1)=-C linker=$$(call FIND_COMPILER,$$(LINK_$(1))) \
183 -C ar=$$(call FIND_COMPILER,$$(AR_$(1))) $(RUSTC_CROSS_FLAGS_$(1))
185 RUSTC_FLAGS_$(1)=$$(RUSTC_CROSS_FLAGS_$(1)) $(RUSTC_FLAGS_$(1))
189 CFG_COMPILE_C_$(1) = $$(CC_$(1)) \
190 $$(CFG_GCCISH_CFLAGS) \
191 $$(CFG_GCCISH_CFLAGS_$(1)) \
192 -c $$(call CFG_CC_OUTPUT_$(1),$$(1)) $$(2)
193 CFG_LINK_C_$(1) = $$(CC_$(1)) \
194 $$(CFG_GCCISH_LINK_FLAGS) -o $$(1) \
195 $$(CFG_GCCISH_LINK_FLAGS_$(1)) \
196 $$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2) \
197 $$(call CFG_INSTALL_NAME_$(1),$$(4))
198 CFG_COMPILE_CXX_$(1) = $$(CXX_$(1)) \
199 $$(CFG_GCCISH_CFLAGS) \
200 $$(CFG_GCCISH_CXXFLAGS) \
201 $$(CFG_GCCISH_CFLAGS_$(1)) \
202 $$(CFG_GCCISH_CXXFLAGS_$(1)) \
203 -c $$(call CFG_CC_OUTPUT_$(1),$$(1)) $$(2)
204 CFG_LINK_CXX_$(1) = $$(CXX_$(1)) \
205 $$(CFG_GCCISH_LINK_FLAGS) -o $$(1) \
206 $$(CFG_GCCISH_LINK_FLAGS_$(1)) \
207 $$(CFG_GCCISH_DEF_FLAG_$(1))$$(3) $$(2) \
208 $$(call CFG_INSTALL_NAME_$(1),$$(4))
210 ifeq ($$(findstring $(HOST_$(1)),arm aarch64 mips mipsel powerpc),)
212 # On Bitrig, we need the relocation model to be PIC for everything
213 ifeq (,$(filter $(OSTYPE_$(1)),bitrig))
214 LLVM_MC_RELOCATION_MODEL="pic"
216 LLVM_MC_RELOCATION_MODEL="default"
219 # We're using llvm-mc as our assembler because it supports
220 # .cfi pseudo-ops on mac
221 CFG_ASSEMBLE_$(1)=$$(CPP_$(1)) -E $$(2) | \
222 $$(LLVM_MC_$$(CFG_BUILD)) \
224 -relocation-model=$$(LLVM_MC_RELOCATION_MODEL) \
230 # For the ARM, AARCH64, MIPS and POWER crosses, use the toolchain assembler
231 # FIXME: We should be able to use the LLVM assembler
232 CFG_ASSEMBLE_$(1)=$$(CC_$(1)) $$(CFG_GCCISH_CFLAGS_$(1)) \
239 $(foreach target,$(CFG_TARGET), \
240 $(eval $(call CFG_MAKE_TOOLCHAIN,$(target))))
242 # There are more comments about this available in the target specification for
243 # Windows MSVC in the compiler, but the gist of it is that we use `llvm-ar.exe`
244 # instead of `lib.exe` for assembling archives, so we need to inject this custom
246 define ADD_LLVM_AR_TO_MSVC_DEPS
247 ifeq ($$(findstring msvc,$(1)),msvc)
248 NATIVE_TOOL_DEPS_core_T_$(1) += llvm-ar.exe
249 INSTALLED_BINS_$(1) += llvm-ar.exe
253 $(foreach target,$(CFG_TARGET), \
254 $(eval $(call ADD_LLVM_AR_TO_MSVC_DEPS,$(target))))
256 # When working with MSVC on windows, each DLL needs to explicitly declare its
257 # interface to the outside world through some means. The options for doing so
260 # 1. A custom attribute on each function itself
261 # 2. A linker argument saying what to export
262 # 3. A file which lists all symbols that need to be exported
264 # The Rust compiler takes care (1) for us for all Rust code by annotating all
265 # public-facing functions with dllexport, but we have a few native dependencies
266 # which need to cross the DLL boundary. The most important of these dependencies
267 # is LLVM which is linked into `rustc_llvm.dll` but primarily used from
268 # `rustc_trans.dll`. This means that many of LLVM's C API functions need to be
269 # exposed from `rustc_llvm.dll` to be forwarded over the boundary.
271 # Unfortunately, at this time, LLVM does not handle this sort of exportation on
272 # Windows for us, so we're forced to do it ourselves if we want it (which seems
273 # like the path of least resistance right now). To do this we generate a `.DEF`
274 # file [1] which we then custom-pass to the linker when building the rustc_llvm
275 # crate. This DEF file list all symbols that are exported from
276 # `src/librustc_llvm/lib.rs` and is generated by a small python script.
280 # [1]: https://msdn.microsoft.com/en-us/library/28d6s79h.aspx
281 define ADD_RUSTC_LLVM_DEF_TO_MSVC
282 ifeq ($$(findstring msvc,$(1)),msvc)
283 RUSTFLAGS_rustc_llvm_T_$(1) += -C link-args="-DEF:$(1)/rt/rustc_llvm.def"
284 CUSTOM_DEPS_rustc_llvm_T_$(1) += $(1)/rt/rustc_llvm.def
286 $(1)/rt/rustc_llvm.def: $$(S)src/etc/mklldef.py $$(S)src/librustc_llvm/lib.rs
287 $$(CFG_PYTHON) $$^ $$@ rustc_llvm-$$(CFG_FILENAME_EXTRA)
291 $(foreach target,$(CFG_TARGET), \
292 $(eval $(call ADD_RUSTC_LLVM_DEF_TO_MSVC,$(target))))