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.
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.
11 # This is the compile-time target-triple for the compiler. For the compiler at
12 # runtime, this should be considered the host-triple. More explanation for why
13 # this exists can be found on issue #2400
14 export CFG_COMPILER_HOST_TRIPLE
16 # The standard libraries should be held up to a higher standard than any old
17 # code, make sure that these common warnings are denied by default. These can
18 # be overridden during development temporarily. For stage0, we allow warnings
19 # which may be bugs in stage0 (should be fixed in stage1+)
20 WFLAGS_ST0 = -W warnings
21 WFLAGS_ST1 = -D warnings
22 WFLAGS_ST2 = -D warnings
24 # Macro that generates the full list of dependencies for a crate at a particular
25 # stage/target/host tuple.
31 define RUST_CRATE_FULLDEPS
32 CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4) := \
35 $$(foreach dep,$$(RUST_DEPS_$(4)), \
36 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
37 $$(foreach dep,$$(NATIVE_DEPS_$(4)), \
38 $$(RT_OUTPUT_DIR_$(2))/$$(call CFG_STATIC_LIB_NAME_$(2),$$(dep)))
41 $(foreach host,$(CFG_HOST), \
42 $(foreach target,$(CFG_TARGET), \
43 $(foreach stage,$(STAGES), \
44 $(foreach crate,$(CRATES), \
45 $(eval $(call RUST_CRATE_FULLDEPS,$(stage),$(target),$(host),$(crate)))))))
47 # RUST_TARGET_STAGE_N template: This defines how target artifacts are built
48 # for all stage/target architecture combinations. This is one giant rule which
51 # 1. The immediate dependencies are the rust source files
52 # 2. Each rust crate dependency is listed (based on their stamp files),
53 # as well as all native dependencies (listed in RT_OUTPUT_DIR)
54 # 3. The stage (n-1) compiler is required through the TSREQ dependency, along
55 # with the morestack library
56 # 4. When actually executing the rule, the first thing we do is to clean out
57 # old libs and rlibs via the REMOVE_ALL_OLD_GLOB_MATCHES macro
58 # 5. Finally, we get around to building the actual crate. It's just one
59 # "small" invocation of the previous stage rustc. We use -L to
60 # RT_OUTPUT_DIR so all the native dependencies are picked up.
61 # Additionally, we pass in the llvm dir so rustc can link against it.
62 # 6. Some cleanup is done (listing what was just built) if verbose is turned
66 # $(2) is the target triple
67 # $(3) is the host triple
68 # $(4) is the crate name
69 define RUST_TARGET_STAGE_N
71 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): CFG_COMPILER_HOST_TRIPLE = $(2)
72 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$(4): \
74 $$(CRATE_FULLDEPS_$(1)_T_$(2)_H_$(3)_$(4)) \
75 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
76 | $$(TLIB$(1)_T_$(2)_H_$(3))/
77 @$$(call E, rustc: $$(@D)/lib$(4))
78 $$(call REMOVE_ALL_OLD_GLOB_MATCHES,\
79 $$(dir $$@)$$(call CFG_LIB_GLOB_$(2),$(4)))
80 $$(call REMOVE_ALL_OLD_GLOB_MATCHES,\
81 $$(dir $$@)$$(call CFG_RLIB_GLOB,$(4)))
82 $$(STAGE$(1)_T_$(2)_H_$(3)) \
84 -L "$$(RT_OUTPUT_DIR_$(2))" \
85 -L "$$(LLVM_LIBDIR_$(2))" \
86 -L "$$(dir $$(LLVM_STDCPP_LOCATION_$(2)))" \
90 $$(call LIST_ALL_OLD_GLOB_MATCHES,\
91 $$(dir $$@)$$(call CFG_LIB_GLOB_$(2),$(4)))
92 $$(call LIST_ALL_OLD_GLOB_MATCHES,\
93 $$(dir $$@)$$(call CFG_RLIB_GLOB,$(4)))
97 # Macro for building any tool as part of the rust compilation process. Each
98 # tool is defined in crates.mk with a list of library dependencies as well as
99 # the source file for the tool. Building each tool will also be passed '--cfg
100 # <tool>' for usage in driver.rs
102 # This build rule is similar to the one found above, just tweaked for
103 # locations and things.
106 # $(2) - target triple
108 # $(4) - name of the tool being built
111 $$(TBIN$(1)_T_$(2)_H_$(3))/$(4)$$(X_$(2)): \
112 $$(TOOL_SOURCE_$(4)) \
113 $$(TOOL_INPUTS_$(4)) \
114 $$(foreach dep,$$(TOOL_DEPS_$(4)), \
115 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.$$(dep)) \
116 $$(TSREQ$(1)_T_$(2)_H_$(3)) \
117 | $$(TBIN$(1)_T_$(4)_H_$(3))/
118 @$$(call E, rustc: $$@)
119 $$(STAGE$(1)_T_$(2)_H_$(3)) -o $$@ $$< --cfg $(4)
123 # Every recipe in RUST_TARGET_STAGE_N outputs to $$(TLIB$(1)_T_$(2)_H_$(3),
124 # a directory that can be cleaned out during the middle of a run of
125 # the get-snapshot.py script. Therefore, every recipe needs to have
126 # an order-only dependency either on $(SNAPSHOT_RUSTC_POST_CLEANUP) or
127 # on $$(TSREQ$(1)_T_$(2)_H_$(3)), to ensure that no products will be
128 # put into the target area until after the get-snapshot.py script has
129 # had its chance to clean it out; otherwise the other products will be
130 # inadvertantly included in the clean out.
131 SNAPSHOT_RUSTC_POST_CLEANUP=$(HBIN0_H_$(CFG_BUILD))/rustc$(X_$(CFG_BUILD))
133 define TARGET_HOST_RULES
135 $$(TLIB$(1)_T_$(2)_H_$(3))/stamp.rustc: $(S)src/librustc/lib/llvmdeps.rs
137 $$(TBIN$(1)_T_$(2)_H_$(3))/:
140 $$(TLIB$(1)_T_$(2)_H_$(3))/:
143 $$(TLIB$(1)_T_$(2)_H_$(3))/libcompiler-rt.a: \
144 $$(RT_OUTPUT_DIR_$(2))/$$(call CFG_STATIC_LIB_NAME_$(2),compiler-rt) \
145 | $$(TLIB$(1)_T_$(2)_H_$(3))/ $$(SNAPSHOT_RUSTC_POST_CLEANUP)
149 $$(TLIB$(1)_T_$(2)_H_$(3))/libmorestack.a: \
150 $$(RT_OUTPUT_DIR_$(2))/$$(call CFG_STATIC_LIB_NAME_$(2),morestack) \
151 | $$(TLIB$(1)_T_$(2)_H_$(3))/ $$(SNAPSHOT_RUSTC_POST_CLEANUP)
156 $(foreach source,$(CFG_HOST), \
157 $(foreach target,$(CFG_TARGET), \
158 $(eval $(call TARGET_HOST_RULES,0,$(target),$(source))) \
159 $(eval $(call TARGET_HOST_RULES,1,$(target),$(source))) \
160 $(eval $(call TARGET_HOST_RULES,2,$(target),$(source))) \
161 $(eval $(call TARGET_HOST_RULES,3,$(target),$(source)))))
163 # In principle, each host can build each target for both libs and tools
164 $(foreach crate,$(CRATES), \
165 $(foreach source,$(CFG_HOST), \
166 $(foreach target,$(CFG_TARGET), \
167 $(eval $(call RUST_TARGET_STAGE_N,0,$(target),$(source),$(crate))) \
168 $(eval $(call RUST_TARGET_STAGE_N,1,$(target),$(source),$(crate))) \
169 $(eval $(call RUST_TARGET_STAGE_N,2,$(target),$(source),$(crate))) \
170 $(eval $(call RUST_TARGET_STAGE_N,3,$(target),$(source),$(crate))))))
172 $(foreach host,$(CFG_HOST), \
173 $(foreach target,$(CFG_TARGET), \
174 $(foreach stage,$(STAGES), \
175 $(foreach tool,$(TOOLS), \
176 $(eval $(call TARGET_TOOL,$(stage),$(target),$(host),$(tool)))))))