Add support for the RISC-V architecture

Supports RV64GC (RISC-V 64-bit with general-purpose and compressed-instruction extensions)
This commit is contained in:
Aaron Franke 2021-08-28 17:40:32 -05:00
parent 3bebbcacdb
commit 474d0f58f5
No known key found for this signature in database
GPG key ID: 40A1750B977E56BF
7 changed files with 25 additions and 4 deletions

View file

@ -431,6 +431,15 @@ bool OS::has_feature(const String &p_feature) {
if (p_feature == "arm") { if (p_feature == "arm") {
return true; return true;
} }
#elif defined(__riscv)
#if __riscv_xlen == 8
if (p_feature == "rv64") {
return true;
}
#endif
if (p_feature == "riscv") {
return true;
}
#endif #endif
if (_check_internal_feature_support(p_feature)) { if (_check_internal_feature_support(p_feature)) {

View file

@ -1,11 +1,12 @@
def can_build(env, platform): def can_build(env, platform):
# Thirdparty dependency OpenImage Denoise includes oneDNN library # Thirdparty dependency OpenImage Denoise includes oneDNN library
# which only supports 64-bit architectures. # and the version we use only supports x86_64.
# It's also only relevant for tools build and desktop platforms, # It's also only relevant for tools build and desktop platforms,
# as doing lightmap generation and denoising on Android or HTML5 # as doing lightmap generation and denoising on Android or HTML5
# would be a bit far-fetched. # would be a bit far-fetched.
desktop_platforms = ["linuxbsd", "osx", "windows"] desktop_platforms = ["linuxbsd", "osx", "windows"]
return env["tools"] and platform in desktop_platforms and env["bits"] == "64" and env["arch"] != "arm64" supported_arch = env["bits"] == "64" and env["arch"] != "arm64" and not env["arch"].startswith("rv")
return env["tools"] and platform in desktop_platforms and supported_arch
def configure(env): def configure(env):

View file

@ -2,7 +2,7 @@ supported_platforms = ["windows", "osx", "linuxbsd", "server", "android", "haiku
def can_build(env, platform): def can_build(env, platform):
return True return not env["arch"].startswith("rv")
def configure(env): def configure(env):

View file

@ -1,5 +1,7 @@
def can_build(env, platform): def can_build(env, platform):
# Depends on Embree library, which only supports x86_64 and aarch64. # Depends on Embree library, which only supports x86_64 and aarch64.
if env["arch"].startswith("rv"):
return False
if platform == "android": if platform == "android":
return env["android_arch"] in ["arm64v8", "x86_64"] return env["android_arch"] in ["arm64v8", "x86_64"]

View file

@ -1,5 +1,5 @@
def can_build(env, platform): def can_build(env, platform):
return True return not env["arch"].startswith("rv")
def configure(env): def configure(env):

View file

@ -1,4 +1,6 @@
def can_build(env, platform): def can_build(env, platform):
if env["arch"].startswith("rv"):
return False
return env.module_check_dependencies("theora", ["ogg", "vorbis"]) return env.module_check_dependencies("theora", ["ogg", "vorbis"])

View file

@ -119,6 +119,13 @@ def configure(env):
if env["bits"] == "default": if env["bits"] == "default":
env["bits"] = "64" if is64 else "32" env["bits"] = "64" if is64 else "32"
if env["arch"] == "" and platform.machine() == "riscv64":
env["arch"] = "rv64"
if env["arch"] == "rv64":
# G = General-purpose extensions, C = Compression extension (very common).
env.Append(CCFLAGS=["-march=rv64gc"])
## Compiler configuration ## Compiler configuration
if "CXX" in env and "clang" in os.path.basename(env["CXX"]): if "CXX" in env and "clang" in os.path.basename(env["CXX"]):