build system: use a single variable name for compiler runtimes

We build with either gcc or clang, no need to keep both around

Change-Id: I9af2cc7636bdc791a68ba8ed6e7c5a81973c5dfd
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/7552
Tested-by: build bot (Jenkins)
Reviewed-by: Edward O'Callaghan <eocallaghan@alterapraxis.com>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>

5 files changed, 18 insertions, 16 deletions

diff --git a/Makefile b/Makefile
index eaac22bb90..eaba3e48c6 100644
--- a/Makefile
+++ b/Makefile
@@ -246,7 +246,6 @@ printall:
 	@echo alldirs:=$(alldirs)
 	@echo allsrcs=$(allsrcs)
 	@echo DEPENDENCIES=$(DEPENDENCIES)
-	@echo LIBGCC_FILE_NAME=$(LIBGCC_FILE_NAME_$(class))
 	@$(foreach class,$(special-classes),echo $(class):='$($(class))'; )
 
 endif
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc
index f99ea15517..62a34a8d84 100644
--- a/src/arch/x86/Makefile.inc
+++ b/src/arch/x86/Makefile.inc
@@ -210,9 +210,9 @@ romstage-libs ?=
 $(objcbfs)/romstage_null.debug: $$(romstage-objs) $(objgenerated)/romstage_null.ld $$(romstage-libs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-	$(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) --start-group $(romstage-objs) $(romstage-libs) $(LIBCLANG_RT_FILE_NAME_romstage) --end-group -T $(objgenerated)/romstage_null.ld
+	$(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) --start-group $(romstage-objs) $(romstage-libs) $(COMPILER_RT_romstage) --end-group -T $(objgenerated)/romstage_null.ld
 else
-	$(CC_romstage) $(CFLAGS_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_null.ld -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(romstage-objs) $(romstage-libs) $(LIBGCC_FILE_NAME_romstage) -Wl,--end-group
+	$(CC_romstage) $(CFLAGS_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_null.ld -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(romstage-objs) $(romstage-libs) $(COMPILER_RT_romstage) -Wl,--end-group
 endif
 	$(NM_romstage) $@ | grep -q " [DdBb] "; if [ $$? -eq 0 ]; then \
 		echo "Forbidden global variables in romstage:"; \
@@ -222,9 +222,9 @@ endif
 $(objcbfs)/romstage_xip.debug: $$(romstage-objs) $(objgenerated)/romstage_xip.ld $$(romstage-libs)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-	$(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) --start-group $(romstage-objs) $(romstage-libs) $(LIBCLANG_RT_FILE_NAME_romstage) --end-group -T $(objgenerated)/romstage_xip.ld
+	$(LD_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) --start-group $(romstage-objs) $(romstage-libs) $(COMPILER_RT_romstage) --end-group -T $(objgenerated)/romstage_xip.ld
 else
-	$(CC_romstage) $(CFLAGS_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_xip.ld -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(romstage-objs) $(romstage-libs) $(LIBGCC_FILE_NAME_romstage) -Wl,--end-group
+	$(CC_romstage) $(CFLAGS_romstage) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/romstage_xip.ld -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(romstage-objs) $(romstage-libs) $(COMPILER_RT_romstage) -Wl,--end-group
 endif
 
 $(objgenerated)/romstage_null.ld: $$(ldscripts) $(obj)/ldoptions
@@ -329,12 +329,12 @@ endif
 
 endif
 
-$(objgenerated)/ramstage.o: $$(ramstage-objs) $(LIBGCC_FILE_NAME_ramstage) $$(ramstage-libs)
+$(objgenerated)/ramstage.o: $$(ramstage-objs) $(COMPILER_RT_ramstage) $$(ramstage-libs)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-	$(LD_ramstage) -m elf_i386 -r -o $@ --start-group $(ramstage-objs) $(ramstage-libs) $(LIBCLANG_RT_FILE_NAME_ramstage) --end-group
+	$(LD_ramstage) -m elf_i386 -r -o $@ --start-group $(ramstage-objs) $(ramstage-libs) $(COMPILER_RT_ramstage) --end-group
 else
-	$(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(ramstage-objs) $(ramstage-libs) $(LIBGCC_FILE_NAME_ramstage) -Wl,--end-group
+	$(CC_ramstage) $(CFLAGS_ramstage) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(ramstage-objs) $(ramstage-libs) $(COMPILER_RT_ramstage) -Wl,--end-group
 endif
 
 endif # CONFIG_ARCH_RAMSTAGE_X86_32
diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc
index f5d2c9c48b..9ebdf2b306 100644
--- a/src/cpu/x86/smm/Makefile.inc
+++ b/src/cpu/x86/smm/Makefile.inc
@@ -24,11 +24,11 @@ $(eval $(call create_class_compiler,smmstub,x86_32))
 
 
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(LIBCLANG_RT_FILE_NAME_smm)
-	$(LD_smm) -nostdlib -r -o $@ --start-group $(smm-objs) $(LIBCLANG_RT_FILE_NAME_smm) --end-group
+$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm)
+	$(LD_smm) -nostdlib -r -o $@ --start-group $(smm-objs) $(COMPILER_RT_smm) --end-group
 else
-$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(LIBGCC_FILE_NAME_smm)
-	$(CC_smm) $(CFLAGS_smm) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(smm-objs) $(LIBGCC_FILE_NAME_smm) -Wl,--end-group
+$(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(COMPILER_RT_smm)
+	$(CC_smm) $(CFLAGS_smm) -nostdlib -r -o $@ -Wl,--wrap,__divdi3 -Wl,--wrap,__udivdi3 -Wl,--wrap,__moddi3 -Wl,--wrap,__umoddi3 -Wl,--start-group $(smm-objs) $(COMPILER_RT_smm) -Wl,--end-group
 endif
 
 $(obj)/cpu/x86/smm/smm_wrap: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/ldoptions
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc
index 55e0fa84a9..0727c9faa3 100644
--- a/src/lib/Makefile.inc
+++ b/src/lib/Makefile.inc
@@ -122,9 +122,9 @@ RMODULE_LDFLAGS_CLANG  := -nostartfiles --emit-relocs -z defs -Bsymbolic -T$(RMO
 define rmodule_link
 $(strip $(1)): $(strip $(2)) $$(RMODULE_LDSCRIPT) $$(obj)/ldoptions $$(RMODTOOL)
 ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
-	$$(LD_rmodules_$(4)) $$(RMODULE_LDFLAGS_CLANG) --defsym=__heap_size=$(strip $(3)) -o $$@ --start-group $(strip $(2)) $$(LIBCLANG_RT_FILE_NAME_rmodules_$(4)) --end-group
+	$$(LD_rmodules_$(4)) $$(RMODULE_LDFLAGS_CLANG) --defsym=__heap_size=$(strip $(3)) -o $$@ --start-group $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) --end-group
 else
-	$$(CC_rmodules_$(4)) $$(CFLAGS_rmodules_$(4)) $$(RMODULE_LDFLAGS) -Wl,--defsym=__heap_size=$(strip $(3)) -o $$@ -Wl,--start-group $(strip $(2)) $$(LIBGCC_FILE_NAME_rmodules_$(4)) -Wl,--end-group
+	$$(CC_rmodules_$(4)) $$(CFLAGS_rmodules_$(4)) $$(RMODULE_LDFLAGS) -Wl,--defsym=__heap_size=$(strip $(3)) -o $$@ -Wl,--start-group $(strip $(2)) $$(COMPILER_RT_rmodules_$(4)) -Wl,--end-group
 endif
 	$$(NM_rmodules_$(4)) -n $$@ > $$(basename $$@).map
 
diff --git a/toolchain.inc b/toolchain.inc
index 0ed370f49a..1083476031 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -92,8 +92,11 @@ STRIP_$(1) := $(STRIP_$(2))
 READELF_$(1) := $(READELF_$(2))
 CFLAGS_$(1) = $$(CFLAGS_common) $$(CFLAGS_$(2))
 CPPFLAGS_$(1) = $$(CPPFLAGS_common) $$(CPPFLAGS_$(2))
-LIBGCC_FILE_NAME_$(1) = $(wildcard $(shell $(CC_$(2)) $(CFLAGS_$(2)) -print-libgcc-file-name))
-LIBCLANG_RT_FILE_NAME_$(1) = $(shell $(CC_$(2)) $(CFLAGS_$(2)) -print-librt-file-name 2>/dev/null)
+ifeq ($(CONFIG_COMPILER_LLVM_CLANG),y)
+COMPILER_RT_$(1) = $(shell $(CC_$(2)) $(CFLAGS_$(2)) -print-librt-file-name 2>/dev/null)
+else
+COMPILER_RT_$(1) = $(wildcard $(shell $(CC_$(2)) $(CFLAGS_$(2)) -print-libgcc-file-name))
+endif
 endef
 
 # define_class: Allows defining any program as dynamic class and compiler tool