xref: /aosp_15_r20/build/soong/rust/config/arm_device.go (revision 333d2b3687b3a337dbcca9d65000bca186795e39) 
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	pctx.StaticVariable("DEVICE_ARM_RUSTC_FLAGS", strings.Join(ArmRustFlags, " "))
48}
49
50type toolchainArm struct {
51	toolchain32Bit
52	toolchainRustFlags string
53}
54
55func (t *toolchainArm) RustTriple() string {
56	return "armv7-linux-androideabi"
57}
58
59func (t *toolchainArm) ToolchainLinkFlags() string {
60	// Prepend the lld flags from cc_config so we stay in sync with cc
61	return "${config.DeviceGlobalLinkFlags} ${cc_config.ArmLldflags} ${config.ArmToolchainLinkFlags}"
62}
63
64func (t *toolchainArm) ToolchainRustFlags() string {
65	return t.toolchainRustFlags
66}
67
68func (t *toolchainArm) RustFlags() string {
69	return "${config.ArmToolchainRustFlags}"
70}
71
72func (t *toolchainArm) Supported() bool {
73	return true
74}
75
76func (toolchainArm) LibclangRuntimeLibraryArch() string {
77	return "arm"
78}
79
80func ArmToolchainFactory(arch android.Arch) Toolchain {
81	toolchainRustFlags := []string{
82		"${config.ArmToolchainRustFlags}",
83		"${config.Arm" + arch.ArchVariant + "VariantRustFlags}",
84	}
85
86	toolchainRustFlags = append(toolchainRustFlags, deviceGlobalRustFlags...)
87
88	for _, feature := range arch.ArchFeatures {
89		toolchainRustFlags = append(toolchainRustFlags, ArmArchFeatureRustFlags[feature]...)
90	}
91
92	return &toolchainArm{
93		toolchainRustFlags: strings.Join(toolchainRustFlags, " "),
94	}
95}
96