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	ArmRustFlags            = []string{}
25	ArmArchFeatureRustFlags = map[string][]string{}
26	ArmLinkFlags            = []string{}
27
28	ArmArchVariantRustFlags = map[string][]string{
29		"armv7-a":      []string{},
30		"armv7-a-neon": []string{},
31		"armv8-a":      []string{},
32		"armv8-2a":     []string{},
33	}
34)
35
36func init() {
37	registerToolchainFactory(android.Android, android.Arm, ArmToolchainFactory)
38
39	pctx.StaticVariable("ArmToolchainRustFlags", strings.Join(ArmRustFlags, " "))
40	pctx.StaticVariable("ArmToolchainLinkFlags", strings.Join(ArmLinkFlags, " "))
41
42	for variant, rustFlags := range ArmArchVariantRustFlags {
43		pctx.StaticVariable("Arm"+variant+"VariantRustFlags",
44			strings.Join(rustFlags, " "))
45	}
46
47}
48
49type toolchainArm struct {
50	toolchain32Bit
51	toolchainRustFlags string
52}
53
54func (t *toolchainArm) RustTriple() string {
55	return "armv7-linux-androideabi"
56}
57
58func (t *toolchainArm) ToolchainLinkFlags() string {
59	// Prepend the lld flags from cc_config so we stay in sync with cc
60	return "${config.DeviceGlobalLinkFlags} ${cc_config.ArmLldflags} ${config.ArmToolchainLinkFlags}"
61}
62
63func (t *toolchainArm) ToolchainRustFlags() string {
64	return t.toolchainRustFlags
65}
66
67func (t *toolchainArm) RustFlags() string {
68	return "${config.ArmToolchainRustFlags}"
69}
70
71func (t *toolchainArm) Supported() bool {
72	return true
73}
74
75func (toolchainArm) LibclangRuntimeLibraryArch() string {
76	return "arm"
77}
78
79func ArmToolchainFactory(arch android.Arch) Toolchain {
80	toolchainRustFlags := []string{
81		"${config.ArmToolchainRustFlags}",
82		"${config.Arm" + arch.ArchVariant + "VariantRustFlags}",
83	}
84
85	toolchainRustFlags = append(toolchainRustFlags, deviceGlobalRustFlags...)
86
87	for _, feature := range arch.ArchFeatures {
88		toolchainRustFlags = append(toolchainRustFlags, ArmArchFeatureRustFlags[feature]...)
89	}
90
91	return &toolchainArm{
92		toolchainRustFlags: strings.Join(toolchainRustFlags, " "),
93	}
94}
95