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Add RISC-V 64-bit support

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adds a riscv64 target architecture to the Makefile to support RISC-V 64-bit.
Compiled and tested on VisionFive 2 board.

closes https://github.com/official-stockfish/Stockfish/pull/4205

No functional change.
This commit is contained in:
Clement 2022-10-21 02:29:57 +00:00 • committed by Joost VandeVondele
parent 804394b939
commit 5604b255e6
2 changed files with 16 additions and 4 deletions
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1
AUTHORS
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@ -43,6 +43,7 @@ Bryan Cross (crossbr)
candirufish
Chess13234
Chris Cain (ceebo)
clefrks
Dale Weiler (graphitemaster)
Dan Schmidt (dfannius)
Daniel Axtens (daxtens)

19
src/Makefile
View file

@ -116,7 +116,7 @@ ifeq ($(ARCH), $(filter $(ARCH), \
x86-64-vnni512 x86-64-vnni256 x86-64-avx512 x86-64-avxvnni x86-64-bmi2 \
x86-64-avx2 x86-64-sse41-popcnt x86-64-modern x86-64-ssse3 x86-64-sse3-popcnt \
x86-64 x86-32-sse41-popcnt x86-32-sse2 x86-32 ppc-64 ppc-32 e2k \
armv7 armv7-neon armv8 apple-silicon general-64 general-32))
armv7 armv7-neon armv8 apple-silicon general-64 general-32 riscv64))
SUPPORTED_ARCH=true
else
SUPPORTED_ARCH=false
@ -338,7 +338,11 @@ ifeq ($(findstring e2k,$(ARCH)),e2k)
popcnt = yes
endif
ifeq ($(ARCH),riscv64)
arch = riscv64
endif
endif
### ==========================================================================
### Section 3. Low-level Configuration
@ -364,11 +368,14 @@ ifeq ($(COMP),gcc)
CXX=g++
CXXFLAGS += -pedantic -Wextra -Wshadow
ifeq ($(arch),$(filter $(arch),armv7 armv8))
ifeq ($(arch),$(filter $(arch),armv7 armv8 riscv64))
ifeq ($(OS),Android)
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
endif
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
@ -429,11 +436,14 @@ ifeq ($(COMP),clang)
endif
endif
ifeq ($(arch),$(filter $(arch),armv7 armv8))
ifeq ($(arch),$(filter $(arch),armv7 armv8 riscv64))
ifeq ($(OS),Android)
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
endif
ifeq ($(ARCH),riscv64)
CXXFLAGS += -latomic
endif
else
CXXFLAGS += -m$(bits)
LDFLAGS += -m$(bits)
@ -757,6 +767,7 @@ help:
@echo "apple-silicon > Apple silicon ARM64"
@echo "general-64 > unspecified 64-bit"
@echo "general-32 > unspecified 32-bit"
@echo "riscv64 > RISC-V 64-bit"
@echo ""
@echo "Supported compilers:"
@echo ""
@ -916,7 +927,7 @@ config-sanity: net
@test "$(SUPPORTED_ARCH)" = "true"
@test "$(arch)" = "any" || test "$(arch)" = "x86_64" || test "$(arch)" = "i386" || \
test "$(arch)" = "ppc64" || test "$(arch)" = "ppc" || test "$(arch)" = "e2k" || \
test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64"
test "$(arch)" = "armv7" || test "$(arch)" = "armv8" || test "$(arch)" = "arm64" || test "$(arch)" = "riscv64"
@test "$(bits)" = "32" || test "$(bits)" = "64"
@test "$(prefetch)" = "yes" || test "$(prefetch)" = "no"
@test "$(popcnt)" = "yes" || test "$(popcnt)" = "no"