| // 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. (This is duplicated in all 64-bit |
| // architectures' cflags.) |
| "-Werror=implicit-function-declaration", |
| // This is already the driver's Android default, but duplicated here (and |
| // below) for ease of experimentation with additional extensions. |
| "-march=rv64gcv_zba_zbb_zbs", |
| // TODO: move to driver (https://github.com/google/android-riscv64/issues/111) |
| "-mno-strict-align", |
| // TODO: remove when qemu V works (https://gitlab.com/qemu-project/qemu/-/issues/1976) |
| // (Note that we'll probably want to wait for berberis to be good enough |
| // that most people don't care about qemu's V performance either!) |
| "-mno-implicit-float", |
| // TODO: remove when clang default changed (https://github.com/google/android-riscv64/issues/124) |
| "-mllvm -jump-is-expensive=false", |
| } |
| |
| riscv64ArchVariantCflags = map[string][]string{} |
| |
| riscv64Ldflags = []string{ |
| // This is already the driver's Android default, but duplicated here (and |
| // above) for ease of experimentation with additional extensions. |
| "-march=rv64gcv_zba_zbb_zbs", |
| // TODO: remove when clang default changed (https://github.com/google/android-riscv64/issues/124) |
| "-Wl,-mllvm -Wl,-jump-is-expensive=false", |
| } |
| |
| riscv64Lldflags = append(riscv64Ldflags, |
| "-Wl,-z,max-page-size=4096", |
| ) |
| |
| riscv64Cppflags = []string{} |
| |
| riscv64CpuVariantCflags = map[string][]string{} |
| ) |
| |
| const () |
| |
| func init() { |
| |
| pctx.StaticVariable("Riscv64Ldflags", strings.Join(riscv64Ldflags, " ")) |
| pctx.StaticVariable("Riscv64Lldflags", strings.Join(riscv64Lldflags, " ")) |
| |
| pctx.StaticVariable("Riscv64Cflags", strings.Join(riscv64Cflags, " ")) |
| pctx.StaticVariable("Riscv64Cppflags", strings.Join(riscv64Cppflags, " ")) |
| } |
| |
| 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) |
| } |