enable building with different target arch

Author: nikomatsakis

Makefile.in

@@ -325,7 +325,6 @@ config.mk: $(S)configure $(S)Makefile.in $(S)src/snapshots.txt
 # Primary-target makefiles
 ######################################################################
 
-include $(CFG_SRC_DIR)/mk/intrinsics.mk
 include $(CFG_SRC_DIR)/mk/target.mk
 include $(CFG_SRC_DIR)/mk/host.mk
 include $(CFG_SRC_DIR)/mk/stage0.mk

configure

@@ -229,6 +229,7 @@ then
     printf "    %-32s %s\n" "CFG_LLVM_ROOT" "The host LLVM install"
     printf "    %-32s %s\n" "CFG_PREFIX" "The installation prefix"
     printf "    %-32s %s\n" "CFG_ONLY_GCC" "Prefer gcc to clang for building the runtime"
+    printf "    %-32s %s\n" "CFG_TARGET_TRIPLES" "LLVM target triples"
     echo ""
     exit 0
 fi
@@ -363,8 +364,10 @@ then
     fi
 fi
 
-# FIXME: add support for extending the target-triples list
-CFG_TARGET_TRIPLES="${CFG_HOST_TRIPLE}"
+if [ -z "$CFG_TARGET_TRIPLES" ]
+then
+    CFG_TARGET_TRIPLES="${CFG_HOST_TRIPLE}"
+fi
 
 putvar CFG_HOST_TRIPLE
 putvar CFG_TARGET_TRIPLES

mk/intrinsics.mk

@@ -15,17 +15,17 @@ INTR_HOST := $$(subst i686,i386,$$(TARGET_HOST))
 $$(TARGET_LIB$(1)$(2))/intrinsics.ll: \
 		$$(S)src/rt/intrinsics/intrinsics.$$(INTR_HOST).ll.in
 	@$$(call E, sed: $$@)
-	sed s/@CFG_TARGET_TRIPLE@/$(2)/ $$< > $$@
+	$$(Q)sed s/@CFG_TARGET_TRIPLE@/$(2)/ $$< > $$@
 
 $$(TARGET_LIB$(1)$(2))/intrinsics.bc: $$(TARGET_LIB$(1)$(2))/intrinsics.ll
 	@$$(call E, llvms-as: $$@)
-	$$(LLVM_AS) -o $$@ $$<
+	$$(Q)$$(LLVM_AS) -o $$@ $$<
 
 $$(TARGET_LIB$(1)$(2))/$$(CFG_STDLIB): \
 	$$(STDLIB_CRATE) $$(STDLIB_INPUTS) \
         $$(TARGET_SREQ$(1)$(2))
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1))  --lib -o $$@ $$<
+	$$(STAGE$(1)_$(2))  --lib -o $$@ $$<
 
 ifeq ($(1), 0)
 # FIXME: temporary
@@ -38,7 +38,7 @@ $$(TARGET_LIB$(1)$(2))/libstd.rlib: \
 	$$(STDLIB_CRATE) $$(STDLIB_INPUTS) \
         $$(TARGET_SREQ$(1)$(2))
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) --lib --static -o $$@ $$<
+	$$(STAGE$(1)_$(2)) --lib --static -o $$@ $$<
 
 $$(TARGET_LIB$(1)$(2))/$$(CFG_RUNTIME): rt/$$(CFG_RUNTIME)
 	@$$(call E, cp: $$@)
@@ -54,15 +54,15 @@ $$(TARGET_BIN$(1)$(2))/rustc$$(X): \
 	$$(TARGET_LIB$(1)$(2))/$$(CFG_RUSTLLVM) \
 	$$(TARGET_STDLIB_DEFAULT$(1)$(2))
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) -o $$@ $$<
+	$$(STAGE$(1)_$(2)) -o $$@ $$<
 
 $$(TARGET_LIB$(1)$(2))/$$(CFG_LIBRUSTC): \
 	$$(COMPILER_CRATE) $$(COMPILER_INPUTS) \
 	$$(TARGET_SREQ$(1)$(2)) \
 	$$(TARGET_LIB$(1)$(2))/$$(CFG_RUSTLLVM) \
 	$$(TARGET_STDLIB_DEFAULT$(1)$(2))
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) --lib -o $$@ $$<
+	$$(STAGE$(1)_$(2)) --lib -o $$@ $$<
 
 endef
 

mk/target.mk

@@ -150,7 +150,7 @@ check-stage$(1)-pretty-pretty: check-stage$(1)-pretty-pretty-dummy
 test/stdtest.stage$(1)$$(X): $$(STDTEST_CRATE) $$(STDTEST_INPUTS) \
                              $$(SREQ$(1)$$(CFG_HOST_TRIPLE))
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) -o $$@ $$< --test
+	$$(STAGE$(1)_$$(CFG_HOST_TRIPLE)) -o $$@ $$< --test
 
 check-stage$(1)-std-dummy: test/stdtest.stage$(1)$$(X)
 	@$$(call E, run: $$<)
@@ -166,7 +166,7 @@ test/rustctest.stage$(1)$$(X): \
 	$$(TARGET_LIB$(1)$$(CFG_HOST_TRIPLE))/$$(CFG_RUSTLLVM) \
 	$$(TARGET_LIB$(1)$$(CFG_HOST_TRIPLE))/$$(CFG_STDLIB)
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) -o $$@ $$< --test
+	$$(STAGE$(1)_$$(CFG_HOST_TRIPLE)) -o $$@ $$< --test
 
 check-stage$(1)-rustc-dummy: test/rustctest.stage$(1)$$(X)
 	@$$(call E, run: $$<)

mk/tests.mk

@@ -18,7 +18,7 @@ $$(TARGET_BIN$(1)$(CFG_HOST_TRIPLE))/fuzzer$$(X): \
 	$$(TARGET_LIB$(1)$(CFG_HOST_TRIPLE))/$$(CFG_STDLIB) \
 	$$(TARGET_LIB$(1)$(CFG_HOST_TRIPLE))/$$(CFG_LIBRUSTC)
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) -o $$@ $$<
+	$$(STAGE$(1)_$(CFG_HOST_TRIPLE)) -o $$@ $$<
 
 # Promote the stageN target to stageN+1 host
 # FIXME: Shouldn't need to depend on host/librustc.so once
@@ -35,7 +35,7 @@ $$(TARGET_BIN$(1)$(CFG_HOST_TRIPLE))/compiletest$$(X): \
 	$$(TARGET_SREQ$(1)$(CFG_HOST_TRIPLE)) \
 	$$(TARGET_LIB$(1)$(CFG_HOST_TRIPLE))/$$(CFG_STDLIB)
 	@$$(call E, compile_and_link: $$@)
-	$$(STAGE$(1)) -o $$@ $$<
+	$$(STAGE$(1)_$(CFG_HOST_TRIPLE)) -o $$@ $$<
 
 $$(HOST_BIN$(2))/compiletest$$(X): \
 	$$(TARGET_BIN$(1)$(CFG_HOST_TRIPLE))/compiletest$$(X) \