platform_build_soong/cc/config/riscv64_device.go
Elliott Hughes 1d1d90b552 riscv64: enable Zba.
Cuttlefish still boots to homescreen, all instructions in the extension
are actually seen to be in use, and the bionic tests still pass.

Test: see above
Change-Id: I6373fa6245115b9b6c845db03ee73b321c07e02a
2023-06-13 07:27:12 -07:00

147 lines
3.7 KiB
Go

// Copyright 2022 Google Inc. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package config
import (
"fmt"
"strings"
"android/soong/android"
)
var (
riscv64Cflags = []string{
// Help catch common 32/64-bit errors.
"-Werror=implicit-function-declaration",
"-fno-emulated-tls",
// A temporary fix for SExtWRemoval miscompilation bug.
"-mllvm",
"-riscv-disable-sextw-removal=true",
"-march=rv64gc_zba_zbb",
}
riscv64ArchVariantCflags = map[string][]string{}
riscv64Ldflags = []string{
"-Wl,--hash-style=gnu",
"-march=rv64gc_zba_zbb",
}
riscv64Lldflags = append(riscv64Ldflags,
"-Wl,-z,max-page-size=4096",
"-Wl,-plugin-opt,-emulated-tls=0",
)
riscv64Cppflags = []string{}
riscv64CpuVariantCflags = map[string][]string{}
)
const ()
func init() {
exportedVars.ExportStringListStaticVariable("Riscv64Ldflags", riscv64Ldflags)
exportedVars.ExportStringListStaticVariable("Riscv64Lldflags", riscv64Lldflags)
exportedVars.ExportStringListStaticVariable("Riscv64Cflags", riscv64Cflags)
exportedVars.ExportStringListStaticVariable("Riscv64Cppflags", riscv64Cppflags)
exportedVars.ExportVariableReferenceDict("Riscv64ArchVariantCflags", riscv64ArchVariantCflagsVar)
exportedVars.ExportVariableReferenceDict("Riscv64CpuVariantCflags", riscv64CpuVariantCflagsVar)
exportedVars.ExportVariableReferenceDict("Riscv64CpuVariantLdflags", riscv64CpuVariantLdflags)
}
var (
riscv64ArchVariantCflagsVar = map[string]string{}
riscv64CpuVariantCflagsVar = map[string]string{}
riscv64CpuVariantLdflags = map[string]string{}
)
type toolchainRiscv64 struct {
toolchainBionic
toolchain64Bit
ldflags string
lldflags string
toolchainCflags string
}
func (t *toolchainRiscv64) Name() string {
return "riscv64"
}
func (t *toolchainRiscv64) IncludeFlags() string {
return ""
}
func (t *toolchainRiscv64) ClangTriple() string {
return "riscv64-linux-android"
}
func (t *toolchainRiscv64) Cflags() string {
return "${config.Riscv64Cflags}"
}
func (t *toolchainRiscv64) Cppflags() string {
return "${config.Riscv64Cppflags}"
}
func (t *toolchainRiscv64) Ldflags() string {
return t.ldflags
}
func (t *toolchainRiscv64) Lldflags() string {
return t.lldflags
}
func (t *toolchainRiscv64) ToolchainCflags() string {
return t.toolchainCflags
}
func (toolchainRiscv64) LibclangRuntimeLibraryArch() string {
return "riscv64"
}
func riscv64ToolchainFactory(arch android.Arch) Toolchain {
switch arch.ArchVariant {
case "":
default:
panic(fmt.Sprintf("Unknown Riscv64 architecture version: %q", arch.ArchVariant))
}
toolchainCflags := []string{riscv64ArchVariantCflagsVar[arch.ArchVariant]}
toolchainCflags = append(toolchainCflags,
variantOrDefault(riscv64CpuVariantCflagsVar, arch.CpuVariant))
extraLdflags := variantOrDefault(riscv64CpuVariantLdflags, arch.CpuVariant)
return &toolchainRiscv64{
ldflags: strings.Join([]string{
"${config.Riscv64Ldflags}",
extraLdflags,
}, " "),
lldflags: strings.Join([]string{
"${config.Riscv64Lldflags}",
extraLdflags,
}, " "),
toolchainCflags: strings.Join(toolchainCflags, " "),
}
}
func init() {
registerToolchainFactory(android.Android, android.Riscv64, riscv64ToolchainFactory)
}