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Colin Crossb0cba6a2015-11-20 15:35:26 -08001// Copyright 2015 Google Inc. All rights reserved.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
Colin Cross3f40fa42015-01-30 17:27:36 -080015package cc
16
17import (
Dan Willemsen110a89d2016-01-14 15:17:19 -080018 "fmt"
Colin Cross3f40fa42015-01-30 17:27:36 -080019 "strings"
20
Colin Cross635c3b02016-05-18 15:37:25 -070021 "android/soong/android"
Colin Cross3f40fa42015-01-30 17:27:36 -080022)
23
24var (
25 arm64Cflags = []string{
26 "-fno-exceptions", // from build/core/combo/select.mk
27 "-Wno-multichar", // from build/core/combo/select.mk
28 "-fno-strict-aliasing",
Dan Willemsen7a0f8482016-01-12 16:22:40 -080029 "-fstack-protector-strong",
Colin Cross3f40fa42015-01-30 17:27:36 -080030 "-ffunction-sections",
31 "-fdata-sections",
32 "-funwind-tables",
33 "-Wa,--noexecstack",
34 "-Werror=format-security",
35 "-D_FORTIFY_SOURCE=2",
36 "-fno-short-enums",
37 "-no-canonical-prefixes",
38 "-fno-canonical-system-headers",
Colin Cross3f40fa42015-01-30 17:27:36 -080039
40 // Help catch common 32/64-bit errors.
41 "-Werror=pointer-to-int-cast",
42 "-Werror=int-to-pointer-cast",
Dan Willemsen162d08f2016-05-06 17:13:56 -070043 "-Werror=implicit-function-declaration",
Colin Cross3f40fa42015-01-30 17:27:36 -080044
45 "-fno-strict-volatile-bitfields",
46
47 // TARGET_RELEASE_CFLAGS
48 "-DNDEBUG",
49 "-O2 -g",
50 "-Wstrict-aliasing=2",
51 "-fgcse-after-reload",
52 "-frerun-cse-after-loop",
53 "-frename-registers",
54 }
55
56 arm64Ldflags = []string{
57 "-Wl,-z,noexecstack",
58 "-Wl,-z,relro",
59 "-Wl,-z,now",
60 "-Wl,--build-id=md5",
61 "-Wl,--warn-shared-textrel",
62 "-Wl,--fatal-warnings",
63 "-Wl,-maarch64linux",
64 "-Wl,--hash-style=gnu",
Dan Willemsen3bf6b472015-09-11 17:41:10 -070065 "-Wl,--fix-cortex-a53-843419",
Dan Willemsen7a0f8482016-01-12 16:22:40 -080066 "-fuse-ld=gold",
67 "-Wl,--icf=safe",
Dan Willemsenc7e45972015-12-09 13:05:28 -080068 "-Wl,--no-undefined-version",
Colin Cross3f40fa42015-01-30 17:27:36 -080069
70 // Disable transitive dependency library symbol resolving.
71 "-Wl,--allow-shlib-undefined",
72 }
73
74 arm64Cppflags = []string{
75 "-fvisibility-inlines-hidden",
76 }
Dan Willemsen110a89d2016-01-14 15:17:19 -080077
78 arm64CpuVariantCflags = map[string][]string{
79 "cortex-a53": []string{
80 "-mcpu=cortex-a53",
81 },
82 }
83
84 arm64ClangCpuVariantCflags = copyVariantFlags(arm64CpuVariantCflags)
Colin Cross3f40fa42015-01-30 17:27:36 -080085)
86
Dan Willemsen34fc3b12015-12-07 12:30:44 -080087const (
88 arm64GccVersion = "4.9"
89)
90
Colin Cross3f40fa42015-01-30 17:27:36 -080091func init() {
Dan Willemsen34fc3b12015-12-07 12:30:44 -080092 pctx.StaticVariable("arm64GccVersion", arm64GccVersion)
Colin Cross3f40fa42015-01-30 17:27:36 -080093
Dan Willemsen34cc69e2015-09-23 15:26:20 -070094 pctx.SourcePathVariable("arm64GccRoot",
Dan Willemsen87b17d12015-07-14 00:39:06 -070095 "prebuilts/gcc/${HostPrebuiltTag}/aarch64/aarch64-linux-android-${arm64GccVersion}")
Colin Cross3f40fa42015-01-30 17:27:36 -080096
97 pctx.StaticVariable("arm64GccTriple", "aarch64-linux-android")
98
99 pctx.StaticVariable("arm64Cflags", strings.Join(arm64Cflags, " "))
100 pctx.StaticVariable("arm64Ldflags", strings.Join(arm64Ldflags, " "))
101 pctx.StaticVariable("arm64Cppflags", strings.Join(arm64Cppflags, " "))
102 pctx.StaticVariable("arm64IncludeFlags", strings.Join([]string{
103 "-isystem ${LibcRoot}/arch-arm64/include",
104 "-isystem ${LibcRoot}/include",
105 "-isystem ${LibcRoot}/kernel/uapi",
Christopher Ferrisb68ea7a2016-07-18 18:36:31 -0700106 "-isystem ${LibcRoot}/kernel/android/uapi",
Dan Willemsena2abfd62016-05-18 14:32:32 -0700107 "-isystem ${LibcRoot}/kernel/common",
Colin Cross3f40fa42015-01-30 17:27:36 -0800108 "-isystem ${LibcRoot}/kernel/uapi/asm-arm64",
Colin Cross3f40fa42015-01-30 17:27:36 -0800109 }, " "))
110
111 pctx.StaticVariable("arm64ClangCflags", strings.Join(clangFilterUnknownCflags(arm64Cflags), " "))
112 pctx.StaticVariable("arm64ClangLdflags", strings.Join(clangFilterUnknownCflags(arm64Ldflags), " "))
113 pctx.StaticVariable("arm64ClangCppflags", strings.Join(clangFilterUnknownCflags(arm64Cppflags), " "))
Dan Willemsen110a89d2016-01-14 15:17:19 -0800114
115 pctx.StaticVariable("arm64CortexA53Cflags",
116 strings.Join(arm64CpuVariantCflags["cortex-a53"], " "))
117 pctx.StaticVariable("arm64ClangCortexA53Cflags",
118 strings.Join(arm64ClangCpuVariantCflags["cortex-a53"], " "))
Colin Cross3f40fa42015-01-30 17:27:36 -0800119}
120
Dan Willemsen110a89d2016-01-14 15:17:19 -0800121var (
122 arm64CpuVariantCflagsVar = map[string]string{
123 "": "",
124 "cortex-a53": "${arm64CortexA53Cflags}",
125 }
126
127 arm64ClangCpuVariantCflagsVar = map[string]string{
128 "": "",
129 "cortex-a53": "${arm64ClangCortexA53Cflags}",
130 }
131)
132
Colin Cross3f40fa42015-01-30 17:27:36 -0800133type toolchainArm64 struct {
134 toolchain64Bit
Colin Cross3f40fa42015-01-30 17:27:36 -0800135
Dan Willemsen110a89d2016-01-14 15:17:19 -0800136 toolchainCflags string
137 toolchainClangCflags string
138}
Colin Cross3f40fa42015-01-30 17:27:36 -0800139
Dan Albertbe961682015-03-18 23:38:50 -0700140func (t *toolchainArm64) Name() string {
141 return "arm64"
142}
143
Colin Cross3f40fa42015-01-30 17:27:36 -0800144func (t *toolchainArm64) GccRoot() string {
145 return "${arm64GccRoot}"
146}
147
148func (t *toolchainArm64) GccTriple() string {
149 return "${arm64GccTriple}"
150}
151
Dan Albertbe961682015-03-18 23:38:50 -0700152func (t *toolchainArm64) GccVersion() string {
Dan Willemsen34fc3b12015-12-07 12:30:44 -0800153 return arm64GccVersion
Dan Albertbe961682015-03-18 23:38:50 -0700154}
155
Dan Willemsen110a89d2016-01-14 15:17:19 -0800156func (t *toolchainArm64) ToolchainCflags() string {
157 return t.toolchainCflags
158}
159
Colin Cross3f40fa42015-01-30 17:27:36 -0800160func (t *toolchainArm64) Cflags() string {
Colin Cross28344522015-04-22 13:07:53 -0700161 return "${arm64Cflags}"
Colin Cross3f40fa42015-01-30 17:27:36 -0800162}
163
164func (t *toolchainArm64) Cppflags() string {
165 return "${arm64Cppflags}"
166}
167
168func (t *toolchainArm64) Ldflags() string {
169 return "${arm64Ldflags}"
170}
171
172func (t *toolchainArm64) IncludeFlags() string {
173 return "${arm64IncludeFlags}"
174}
175
176func (t *toolchainArm64) ClangTriple() string {
177 return "${arm64GccTriple}"
178}
179
180func (t *toolchainArm64) ClangCflags() string {
181 return "${arm64ClangCflags}"
182}
183
184func (t *toolchainArm64) ClangCppflags() string {
185 return "${arm64ClangCppflags}"
186}
187
188func (t *toolchainArm64) ClangLdflags() string {
189 return "${arm64Ldflags}"
190}
191
Dan Willemsen110a89d2016-01-14 15:17:19 -0800192func (t *toolchainArm64) ToolchainClangCflags() string {
193 return t.toolchainClangCflags
194}
195
Colin Cross16b23492016-01-06 14:41:07 -0800196func (toolchainArm64) AddressSanitizerRuntimeLibrary() string {
197 return "libclang_rt.asan-aarch64-android.so"
198}
199
Colin Cross635c3b02016-05-18 15:37:25 -0700200func arm64ToolchainFactory(arch android.Arch) Toolchain {
Dan Willemsen110a89d2016-01-14 15:17:19 -0800201 if arch.ArchVariant != "armv8-a" {
202 panic(fmt.Sprintf("Unknown ARM architecture version: %q", arch.ArchVariant))
203 }
204
205 return &toolchainArm64{
206 toolchainCflags: variantOrDefault(arm64CpuVariantCflagsVar, arch.CpuVariant),
207 toolchainClangCflags: variantOrDefault(arm64ClangCpuVariantCflagsVar, arch.CpuVariant),
208 }
Colin Cross3f40fa42015-01-30 17:27:36 -0800209}
210
211func init() {
Colin Crossa1ad8d12016-06-01 17:09:44 -0700212 registerToolchainFactory(android.Android, android.Arm64, arm64ToolchainFactory)
Colin Cross3f40fa42015-01-30 17:27:36 -0800213}