crossgcc: Add RISC-V support

Change-Id: If1e0f7ed21f67d7a185dad251ede81ddbc18c4e5
Signed-off-by: Patrick Georgi <patrick@georgi-clan.de>
Reviewed-on: http://review.coreboot.org/8629
Tested-by: build bot (Jenkins)
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

Makefile.inc

@@ -424,9 +424,9 @@ gitconfig:
 	git config remote.origin.push HEAD:refs/for/master
 	(git config --global user.name >/dev/null && git config --global user.email >/dev/null) || (printf 'Please configure your name and email in git:\n\n git config --global user.name "Your Name Comes Here"\n git config --global user.email your.email@example.com\n'; exit 1)
 
-crossgcc: crossgcc-i386 crossgcc-arm crossgcc-aarch64 crossgcc-mips
+crossgcc: crossgcc-i386 crossgcc-arm crossgcc-aarch64 crossgcc-mips crossgcc-riscv
 
-.PHONY: crossgcc-i386 crossgcc-arm crossgcc-aarch64 crossgcc-mips
+.PHONY: crossgcc-i386 crossgcc-arm crossgcc-aarch64 crossgcc-mips crossgcc-riscv
 crossgcc-i386: clean-for-update
 	$(MAKE) -C util/crossgcc build-i386-without-gdb
 
@@ -439,9 +439,12 @@ crossgcc-aarch64: clean-for-update
 crossgcc-mips: clean-for-update
 	$(MAKE) -C util/crossgcc build-mips-without-gdb
 
-crosstools: crosstools-i386 crosstools-arm crosstools-aarch64 crosstools-mips
+crossgcc-riscv: clean-for-update
+	$(MAKE) -C util/crossgcc build-riscv-without-gdb
 
-.PHONY: crosstools-i386 crosstools-arm crosstools-aarch64 crosstools-mips
+crosstools: crosstools-i386 crosstools-arm crosstools-aarch64 crosstools-mips crosstools-riscv
+
+.PHONY: crosstools-i386 crosstools-arm crosstools-aarch64 crosstools-mips crosstools-riscv
 crosstools-i386: clean-for-update
 	$(MAKE) -C util/crossgcc build-i386
 
@@ -454,6 +457,9 @@ crosstools-aarch64: clean-for-update
 crosstools-mips: clean-for-update
 	$(MAKE) -C util/crossgcc build-mips
 
+crosstools-riscv: clean-for-update
+	$(MAKE) -C util/crossgcc build-riscv
+
 crossgcc-clean: clean-for-update
 	$(MAKE) -C util/crossgcc clean
 

util/crossgcc/Makefile

@@ -1,4 +1,4 @@
-all: build-i386 build-armv7a build-aarch64 build-mips
+all: build-i386 build-armv7a build-aarch64 build-mips build-riscv
 
 build-i386:
 	bash ./buildgcc -G -p i386-elf
@@ -12,6 +12,9 @@ build-aarch64:
 build-mips:
 	bash ./buildgcc -G -p mips-elf
 
+build-mips:
+	bash ./buildgcc -G -p riscv-elf
+
 .PHONY: build-i386-without-gdb
 build-i386-without-gdb:
 	bash ./buildgcc -p i386-elf
@@ -28,6 +31,10 @@ build-aarch64-without-gdb:
 build-mips-without-gdb:
 	bash ./buildgcc -p mips-elf
 
+.PHONY: build-riscv-without-gdb
+build-riscv-without-gdb:
+	bash ./buildgcc -p riscv-elf
+
 clean:
 	rm -rf xgcc
 

util/crossgcc/buildgcc

@@ -230,6 +230,7 @@ case "$TARGETARCH" in
 	i386-elf)	;;
 	i386-mingw32)	;;
 	mipsel-elf)	;;
+	riscv-elf)	;;
 	i386*)		TARGETARCH=i386-elf;;
 	arm*)		TARGETARCH=armv7-a-eabi;;
 	aarch64*)	TARGETARCH=aarch64-elf;;