1// 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
15package config
16
17import (
18	"strings"
19
20	"android/soong/android"
21)
22
23var (
24	x86Cflags = []string{}
25
26	x86ClangCflags = append(x86Cflags, []string{
27		"-msse3",
28
29		// -mstackrealign is needed to realign stack in native code
30		// that could be called from JNI, so that movaps instruction
31		// will work on assumed stack aligned local variables.
32		"-mstackrealign",
33	}...)
34
35	x86Cppflags = []string{}
36
37	x86Ldflags = []string{
38		"-Wl,--hash-style=gnu",
39	}
40
41	x86Lldflags = ClangFilterUnknownLldflags(x86Ldflags)
42
43	x86ArchVariantCflags = map[string][]string{
44		"": []string{
45			"-march=prescott",
46		},
47		"x86_64": []string{
48			"-march=prescott",
49		},
50		"atom": []string{
51			"-march=atom",
52			"-mfpmath=sse",
53		},
54		"broadwell": []string{
55			"-march=broadwell",
56			"-mfpmath=sse",
57		},
58		"haswell": []string{
59			"-march=core-avx2",
60			"-mfpmath=sse",
61		},
62		"ivybridge": []string{
63			"-march=core-avx-i",
64			"-mfpmath=sse",
65		},
66		"sandybridge": []string{
67			"-march=corei7",
68			"-mfpmath=sse",
69		},
70		"silvermont": []string{
71			"-march=slm",
72			"-mfpmath=sse",
73		},
74		"skylake": []string{
75			"-march=skylake",
76			"-mfpmath=sse",
77		},
78		"stoneyridge": []string{
79			"-march=bdver4",
80			"-mfpmath=sse",
81		},
82	}
83
84	x86ArchFeatureCflags = map[string][]string{
85		"ssse3":  []string{"-mssse3"},
86		"sse4":   []string{"-msse4"},
87		"sse4_1": []string{"-msse4.1"},
88		"sse4_2": []string{"-msse4.2"},
89
90		// Not all cases there is performance gain by enabling -mavx -mavx2
91		// flags so these flags are not enabled by default.
92		// if there is performance gain in individual library components,
93		// the compiler flags can be set in corresponding bp files.
94		// "avx":    []string{"-mavx"},
95		// "avx2":   []string{"-mavx2"},
96		// "avx512": []string{"-mavx512"}
97
98		"aes_ni": []string{"-maes"},
99	}
100)
101
102const (
103	x86GccVersion = "4.9"
104)
105
106func init() {
107	pctx.StaticVariable("x86GccVersion", x86GccVersion)
108
109	pctx.SourcePathVariable("X86GccRoot",
110		"prebuilts/gcc/${HostPrebuiltTag}/x86/x86_64-linux-android-${x86GccVersion}")
111
112	pctx.StaticVariable("X86ToolchainCflags", "-m32")
113	pctx.StaticVariable("X86ToolchainLdflags", "-m32")
114
115	pctx.StaticVariable("X86Ldflags", strings.Join(x86Ldflags, " "))
116	pctx.StaticVariable("X86Lldflags", strings.Join(x86Lldflags, " "))
117
118	// Clang cflags
119	pctx.StaticVariable("X86ClangCflags", strings.Join(ClangFilterUnknownCflags(x86ClangCflags), " "))
120	pctx.StaticVariable("X86ClangLdflags", strings.Join(ClangFilterUnknownCflags(x86Ldflags), " "))
121	pctx.StaticVariable("X86ClangLldflags", strings.Join(ClangFilterUnknownCflags(x86Lldflags), " "))
122	pctx.StaticVariable("X86ClangCppflags", strings.Join(ClangFilterUnknownCflags(x86Cppflags), " "))
123
124	// Yasm flags
125	pctx.StaticVariable("X86YasmFlags", "-f elf32 -m x86")
126
127	// Extended cflags
128
129	// Architecture variant cflags
130	for variant, cflags := range x86ArchVariantCflags {
131		pctx.StaticVariable("X86"+variant+"VariantClangCflags",
132			strings.Join(ClangFilterUnknownCflags(cflags), " "))
133	}
134}
135
136type toolchainX86 struct {
137	toolchain32Bit
138	toolchainClangCflags string
139}
140
141func (t *toolchainX86) Name() string {
142	return "x86"
143}
144
145func (t *toolchainX86) GccRoot() string {
146	return "${config.X86GccRoot}"
147}
148
149func (t *toolchainX86) GccTriple() string {
150	return "x86_64-linux-android"
151}
152
153func (t *toolchainX86) GccVersion() string {
154	return x86GccVersion
155}
156
157func (t *toolchainX86) IncludeFlags() string {
158	return ""
159}
160
161func (t *toolchainX86) ClangTriple() string {
162	return "i686-linux-android"
163}
164
165func (t *toolchainX86) ToolchainClangLdflags() string {
166	return "${config.X86ToolchainLdflags}"
167}
168
169func (t *toolchainX86) ToolchainClangCflags() string {
170	return t.toolchainClangCflags
171}
172
173func (t *toolchainX86) ClangCflags() string {
174	return "${config.X86ClangCflags}"
175}
176
177func (t *toolchainX86) ClangCppflags() string {
178	return "${config.X86ClangCppflags}"
179}
180
181func (t *toolchainX86) ClangLdflags() string {
182	return "${config.X86Ldflags}"
183}
184
185func (t *toolchainX86) ClangLldflags() string {
186	return "${config.X86Lldflags}"
187}
188
189func (t *toolchainX86) YasmFlags() string {
190	return "${config.X86YasmFlags}"
191}
192
193func (toolchainX86) LibclangRuntimeLibraryArch() string {
194	return "i686"
195}
196
197func x86ToolchainFactory(arch android.Arch) Toolchain {
198	toolchainClangCflags := []string{
199		"${config.X86ToolchainCflags}",
200		"${config.X86" + arch.ArchVariant + "VariantClangCflags}",
201	}
202
203	for _, feature := range arch.ArchFeatures {
204		toolchainClangCflags = append(toolchainClangCflags, x86ArchFeatureCflags[feature]...)
205	}
206
207	return &toolchainX86{
208		toolchainClangCflags: strings.Join(toolchainClangCflags, " "),
209	}
210}
211
212func init() {
213	registerToolchainFactory(android.Android, android.X86, x86ToolchainFactory)
214}
215