1// Copyright 2019 The Android Open Source Project
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	x86_64RustFlags = []string{
25		"-C force-frame-pointers=y",
26	}
27	x86_64ArchFeatureRustFlags = map[string][]string{}
28	x86_64LinkFlags            = []string{}
29
30	x86_64ArchVariantRustFlags = map[string][]string{
31		"":                            []string{},
32		"broadwell":                   []string{"-C target-cpu=broadwell"},
33		"goldmont":                    []string{"-C target-cpu=goldmont"},
34		"goldmont-plus":               []string{"-C target-cpu=goldmont-plus"},
35		"goldmont-without-sha-xsaves": []string{"-C target-cpu=goldmont", "-C target-feature=-sha,-xsaves"},
36		"haswell":                     []string{"-C target-cpu=haswell"},
37		"ivybridge":                   []string{"-C target-cpu=ivybridge"},
38		"sandybridge":                 []string{"-C target-cpu=sandybridge"},
39		"silvermont":                  []string{"-C target-cpu=silvermont"},
40		"skylake":                     []string{"-C target-cpu=skylake"},
41		//TODO: Add target-cpu=stoneyridge when rustc supports it.
42		"stoneyridge": []string{""},
43		"tremont":     []string{"-C target-cpu=tremont"},
44	}
45)
46
47func init() {
48	registerToolchainFactory(android.Android, android.X86_64, x86_64ToolchainFactory)
49
50	pctx.StaticVariable("X86_64ToolchainRustFlags", strings.Join(x86_64RustFlags, " "))
51	pctx.StaticVariable("X86_64ToolchainLinkFlags", strings.Join(x86_64LinkFlags, " "))
52
53	for variant, rustFlags := range x86_64ArchVariantRustFlags {
54		pctx.StaticVariable("X86_64"+variant+"VariantRustFlags",
55			strings.Join(rustFlags, " "))
56	}
57	pctx.StaticVariable("DEVICE_X86_64_RUSTC_FLAGS", strings.Join(x86_64RustFlags, " "))
58}
59
60type toolchainX86_64 struct {
61	toolchain64Bit
62	toolchainRustFlags string
63}
64
65func (t *toolchainX86_64) RustTriple() string {
66	return "x86_64-linux-android"
67}
68
69func (t *toolchainX86_64) ToolchainLinkFlags() string {
70	// Prepend the lld flags from cc_config so we stay in sync with cc
71	return "${config.DeviceGlobalLinkFlags} ${cc_config.X86_64Lldflags} ${config.X86_64ToolchainLinkFlags}"
72}
73
74func (t *toolchainX86_64) ToolchainRustFlags() string {
75	return t.toolchainRustFlags
76}
77
78func (t *toolchainX86_64) RustFlags() string {
79	return "${config.X86_64ToolchainRustFlags}"
80}
81
82func (t *toolchainX86_64) Supported() bool {
83	return true
84}
85
86func (toolchainX86_64) LibclangRuntimeLibraryArch() string {
87	return "x86_64"
88}
89
90func x86_64ToolchainFactory(arch android.Arch) Toolchain {
91	toolchainRustFlags := []string{
92		"${config.X86_64ToolchainRustFlags}",
93		"${config.X86_64" + arch.ArchVariant + "VariantRustFlags}",
94	}
95
96	toolchainRustFlags = append(toolchainRustFlags, deviceGlobalRustFlags...)
97
98	for _, feature := range arch.ArchFeatures {
99		toolchainRustFlags = append(toolchainRustFlags, x86_64ArchFeatureRustFlags[feature]...)
100	}
101
102	return &toolchainX86_64{
103		toolchainRustFlags: strings.Join(toolchainRustFlags, " "),
104	}
105}
106