Project

General

Profile

DeprecatedPortingToAndroid10 » History » Version 88

Denis 'GNUtoo' Carikli, 03/29/2019 12:03 AM

1 1 Denis 'GNUtoo' Carikli
h1. Porting Replicant to Android 9
2
3 47 Denis 'GNUtoo' Carikli
h2. Status
4 46 Denis 'GNUtoo' Carikli
5 49 Denis 'GNUtoo' Carikli
* The Galaxy SIII 4G (i9305) boots (with graphics hacks) under AOSP9, without having to import nonfree libraries. Not much has been validated beside that.
6
* The kernel used is based on Linux 5.0-rc6 and has ~150 Android specific patches on top and some patches for the Galaxy SIII 4G (i9305) on top
7 1 Denis 'GNUtoo' Carikli
8 46 Denis 'GNUtoo' Carikli
h2. Repositories and changes
9
 
10
* git://git.putti.eu/aosp/manifest_i9305.git
11
* git://git.putti.eu/aosp/kernel_i9305.git
12
* git://git.putti.eu/aosp/device_i9305.git
13 1 Denis 'GNUtoo' Carikli
14 88 Denis 'GNUtoo' Carikli
h2. Building AOSP version
15 1 Denis 'GNUtoo' Carikli
16 88 Denis 'GNUtoo' Carikli
h3. Source code
17
18 46 Denis 'GNUtoo' Carikli
First get the source code:
19
<pre>
20
$ repo init -u git://git.putti.eu/aosp/manifest_i9305.git -b android-9.0.0
21 1 Denis 'GNUtoo' Carikli
</pre>
22 46 Denis 'GNUtoo' Carikli
23 88 Denis 'GNUtoo' Carikli
h3. For Trisquel8
24 45 Denis 'GNUtoo' Carikli
<pre>
25 1 Denis 'GNUtoo' Carikli
sudo apt-get install git-core gnupg flex bison gperf build-essential zip curl zlib1g-dev gcc-multilib g++-multilib libc6-dev-i386 lib32ncurses5-dev x11proto-core-dev libx11-dev lib32z-dev libgl1-mesa-dev libxml2-utils xsltproc unzip bc python-mako
26
</pre>
27
28 88 Denis 'GNUtoo' Carikli
h3. Building it
29
30
Once this is done, see the device/putti/i9305/README.md for the build instructions.
31
32
h3. Trisquel 8 LXC
33
34
If you use Parabola, you may be interested in running Trisquel 8 in LXC.
35
36
To do that first debootstrap a Trisquel 8 rootfs. 
37
38
Parabola's debootstrap does support Trisquel 8 and its manual has an example on how to do that:
39
<pre>
40
$ man debootstrap
41
[...]
42
# debootstrap flidas flidas-root http://archive.trisquel.info/trisquel
43
</pre>
44
45
Then you can use virt-manager to setup the LXC instance.
46
47
The advantage of this solution is that:
48
* The LXC guest and host shares their resources (CPU, RAM) with almost no penalty
49
* Trisquel 8 is not a rolling release distribution
50
51
The disadvantage of this solution are that:
52
* you need to configure again the Trisquel 8 LXC instance (vimrc, sshd_config, etc)
53
* It's more complicated to setup
54 48 Denis 'GNUtoo' Carikli
55 45 Denis 'GNUtoo' Carikli
h2. TODO
56 38 Denis 'GNUtoo' Carikli
57 87 Denis 'GNUtoo' Carikli
First month of full time equivalent work:
58
59 51 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
60 74 Denis 'GNUtoo' Carikli
| -boot a device under AOSP9- | DONE | Only boots with graphics, not much more |
61 81 Denis 'GNUtoo' Carikli
| -build it under a "FSDG compliant distribution":https://www.gnu.org/distros/free-distros.html like Trisquel8- | -7h- DONE | -WIP for AOSP, It's difficult to do precise time estimations as it could work out of the box or require one full time month of work depending on how much issues are encountered- 
62
Builds under Trisquel8|
63 57 Denis 'GNUtoo' Carikli
| * port the changes from AOSP9 to LineageOS 16
64
* cleanup the code
65 59 Denis 'GNUtoo' Carikli
* build the kernel from the Android build system
66
* make sure it builds with an FSDG compliant distribution
67 73 Denis 'GNUtoo' Carikli
* document the build procedure | 21h | |
68
| find, remove and document proprietary software in LineageOS 16 | 14h | |
69 1 Denis 'GNUtoo' Carikli
| find, remove and document privacy issues in LineageOS 16 | 21h | |
70
| port the touch keys linux driver | 7h | |
71 77 Denis 'GNUtoo' Carikli
| port the AAT1290 flash led linux driver | 7h | |
72 73 Denis 'GNUtoo' Carikli
| Rebrand LineageOS as Replicant | 7h | |
73 77 Denis 'GNUtoo' Carikli
| * port and cleanup the the Galaxy SIII (i9300) "modem":https://github.com/fourkbomb/linux/tree/modem linux driver from 4.16 to 5.0
74 75 Denis 'GNUtoo' Carikli
* Make the modem driver and libsamsung-ipc work together  | 70h | |
75 73 Denis 'GNUtoo' Carikli
|_. Total |_. 154h | ~1 month |
76 1 Denis 'GNUtoo' Carikli
77 87 Denis 'GNUtoo' Carikli
Second month of full time equivalent work:
78 75 Denis 'GNUtoo' Carikli
| port  libsamsung-ril and libsamsung-ipc to Android 9| 157h | libsamsung-ipc should be trivial, libsamsung-ril probably needs to be heavily adapted to Trebble or the new RIL interfaces |
79
|_. Total |_. 157h | ~1 month |
80
81 87 Denis 'GNUtoo' Carikli
Third month of full time equivalent work:
82 1 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
83 75 Denis 'GNUtoo' Carikli
| port the sensors libraries and other device specific libraries | 70h | |
84 57 Denis 'GNUtoo' Carikli
| add support for Audio | 70h | Might be way faster, depending on what Android 9 uses |
85 77 Denis 'GNUtoo' Carikli
| add support for the Galaxy SIII (i9300) and factorize the code with i9305 | 14h | |
86 76 Denis 'GNUtoo' Carikli
|_. Total |_. 154h | ~1 month |
87
88
|_. Task |_. Time estimation |_. Comments |
89 67 Denis 'GNUtoo' Carikli
| create a recovery | 21h | |
90 71 Denis 'GNUtoo' Carikli
| add internal WiFi support and validate the functionality | 6h | |
91
| add external WiFi dongles suppor | 20h | External dongles support might be tricky |
92 74 Denis 'GNUtoo' Carikli
| create new install and upgrade instructions | 35h | Our current install instructions don't scale as we have one copy for each device.
93 71 Denis 'GNUtoo' Carikli
We also created generic instructions but they tend to be harder to follow[1] than the device specific ones.
94
This will be made in a modular format (for instance in LaTeX) that enables to generate per device install instructions without requiring to have multiples copy of the same text. The instructions will need to be able to be modified and compiled on an FSDG compliant distribution. |
95 1 Denis 'GNUtoo' Carikli
96
| Reduce the attack surface | | |
97 69 Denis 'GNUtoo' Carikli
| add in-system upgrades | |
98 71 Denis 'GNUtoo' Carikli
99
fn1. The generic instructions were tested at Install parties in Paris 
100 1 Denis 'GNUtoo' Carikli
101
h3. Devices support:
102
103 82 Denis 'GNUtoo' Carikli
h4. Easy, because it's similar enough to the Galaxy SIII (I9300)
104 1 Denis 'GNUtoo' Carikli
105 85 Denis 'GNUtoo' Carikli
|_\3. Galaxy Note II (N7100) |
106 77 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
107
| port the EA8061 LCD driver Driver | 35h | |
108
| port the S6EVR02 LCD driver Driver | 35h | |
109
| port the MAX77693 flash led linux driver | 7h | |
110 86 Denis 'GNUtoo' Carikli
| android: add support for the Note II (N7100) and factorize the code with Galaxy SIII (i9300) and Galaxy SIII 4G (i9305) | 14h | Should be similar to the Galaxy SIII |
111
| port the sensors libraries and other device specific libraries | 70h | It's difficult to evaluate how much time it could take |
112
| add support for Audio | 14h | Should be similar to the Galaxy SIII |
113
114
|_\3. Galaxy Note 8.0 (N5100) and 8.0 WiFi (N5110) |
115
|_. Task |_. Time estimation |_. Comments |
116
| Evaluate the time required to do the port | 14h | TODO |
117 1 Denis 'GNUtoo' Carikli
118 70 Denis 'GNUtoo' Carikli
h4. Needs more work and unknown upstream Linux status
119
120 69 Denis 'GNUtoo' Carikli
|_. Device |_. Time estimation |_. Comments |
121 54 Denis 'GNUtoo' Carikli
| Galaxy S II (i9100) | | linux: devboard dts upstream? unknown status |
122
| Galaxy Note (N7000) | | unknown linux upstream status |
123
| Galaxy Nexus (I9250) | |/2. OMAP4, no dts upsrteam |
124
| Galaxy Tab 2 7.0 (P3100), 7.0 WiFi (P3110), 10.1 (P5100), 10.1 WiFi (P5110) | |
125
| GTA04 >= A4 | | TODO: a RIL needs to be written, userspace GPS support is missing, audio scenarios, etc |
126 34 Denis 'GNUtoo' Carikli
127
h2. Replicant 6.0 changes
128 2 Denis 'GNUtoo' Carikli
129 4 Denis 'GNUtoo' Carikli
|_. Repository path |_. rebase worked |_. Changes |
130 22 Denis 'GNUtoo' Carikli
| build | No | |
131 1 Denis 'GNUtoo' Carikli
| manifest | No | N/A |
132 32 Denis 'GNUtoo' Carikli
| bootable/recovery | Yes | * UI changes to improve usability 
133 5 Denis 'GNUtoo' Carikli
* Branding
134 31 Denis 'GNUtoo' Carikli
* Small fix(es) | 
135 4 Denis 'GNUtoo' Carikli
| external/boringssl | Yes | * Small fix(es) |
136
| external/heimdall | No | |
137
| frameworks/av | Yes | * Software rendering fix(es) |
138
| frameworks/base | Yes | * WiFi fixe(s) for external dongles
139
* Software rendering fix(es) 
140
* Privacy fix(es) 
141 1 Denis 'GNUtoo' Carikli
* Security improvements 
142 5 Denis 'GNUtoo' Carikli
* Usability improvements |
143
| frameworks/native | No |
144
| hardware/broadcom/wlan | Yes | * Remove nonfree software |
145 10 Denis 'GNUtoo' Carikli
| hardware/libhardware | Yes | * Software rendering fix(es) |
146 5 Denis 'GNUtoo' Carikli
| hardware/libhardware_legacy | Yes | * Don't depend on nonfree software |
147
| hardware/ti/omap4 | Yes | * Remove nonfree software 
148 33 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software 
149
* Small fix(es) |
150 6 Denis 'GNUtoo' Carikli
| libcore | Yes | * Small fix(es) | 
151 8 Denis 'GNUtoo' Carikli
| packages/apps/Browser | Yes | * Privacy fix(es) 
152 33 Denis 'GNUtoo' Carikli
* Branding
153 7 Denis 'GNUtoo' Carikli
* Small fix(es) |
154 33 Denis 'GNUtoo' Carikli
| packages/apps/LegacyCamera | Yes | * Software rendering fix(es)
155 22 Denis 'GNUtoo' Carikli
* Small fix(es) |
156
| packages/apps/RepWifi | Not upstreamed, obsolete | N/A |
157 11 Denis 'GNUtoo' Carikli
| packages/apps/ReplicantWallpapers | Not upstreamed | * Branding |
158
| packages/apps/Settings | No | |
159
| packages/apps/SetupWizard | Yes | * Privacy fix(es) 
160
* Don't depend on nonfree software
161 12 Denis 'GNUtoo' Carikli
* Branding |
162
| packages/apps/ThemeChooser | Yes | * Privacy fix(es) ?
163 33 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software ? |
164 13 Denis 'GNUtoo' Carikli
| packages/providers/ContactsProvider | Yes | * Small fix(es) |
165
| system/core | Yes | * Branding
166
* various fixes |
167
| vendor/replicant | No | |
168 14 Denis 'GNUtoo' Carikli
| vendor/cmsdk | Yes | * Branding |
169
| external/chromium-webview | ? | ? |
170
| external/drm_gralloc | Yes | * Software rendering fix(es) |
171
| external/llvm | Yes | * Software rendering fix(es) |
172
| external/mesa3d |  Yes | * Software rendering fix(es)
173 33 Denis 'GNUtoo' Carikli
* Performance debugging for software rendering |
174 14 Denis 'GNUtoo' Carikli
| external/parameter-framework | Yes | * Small fix(es) |
175
| external/protobuf | N/A | No changes |
176
| prebuilts/ndk | ? | ? |
177 33 Denis 'GNUtoo' Carikli
| prebuilts/sdk | ? | ? |
178
| sdk | Yes | * Small fix(es) |
179 14 Denis 'GNUtoo' Carikli
| toolchain/src/binutils | Yes | * Small fix(es) |
180 33 Denis 'GNUtoo' Carikli
| toolchain/src/gcc | No | |
181
| toolchain/src/jack | Yes | * Small fix(es) |
182 22 Denis 'GNUtoo' Carikli
| toolchain/src/jill | Yes | * Small fix(es) |
183 1 Denis 'GNUtoo' Carikli
| kernel/samsung/smdk4412 |/3. Yes |/3. * Security fixes
184
* Privacy Fixes (TrustZone)
185 20 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software
186 33 Denis 'GNUtoo' Carikli
* Remove nonfree software
187 22 Denis 'GNUtoo' Carikli
* Small fix(es) |
188
| kernel/samsung/tuna |
189 28 Denis 'GNUtoo' Carikli
| kernel/samsung/espresso10 |
190
| device/samsung/i9100 | No |/14. * Replace nonfree software by free software
191
* free software sensors implementation(s)
192 25 Denis 'GNUtoo' Carikli
* free software modem audio implementation(s)
193 29 Denis 'GNUtoo' Carikli
* Software rendering fix(es)
194
* Privacy Fixes (TrustZone)
195
* Don't depend on nonfree software
196 1 Denis 'GNUtoo' Carikli
* Remove nonfree software
197 33 Denis 'GNUtoo' Carikli
* Branding
198 1 Denis 'GNUtoo' Carikli
* Small fix(es) |
199
| device/samsung/n7000 | Yes |
200
| device/samsung/i9300 | No |
201
| device/samsung/i9305 | No |
202 29 Denis 'GNUtoo' Carikli
| device/samsung/n7100 | Yes |
203
| device/samsung/n5100 | Yes |
204
| device/samsung/n5110 | Yes |
205
| device/samsung/maguro | Yes |
206 30 Denis 'GNUtoo' Carikli
| device/samsung/tuna | Yes |
207
| device/samsung/espressowifi | Yes |
208
| device/samsung/espresso3g | Yes |
209
| device/samsung/galaxys2-common | Yes |
210
| device/samsung/smdk4412-common | No |
211 22 Denis 'GNUtoo' Carikli
| device/samsung/kona-common | Yes |
212
| hardware/ril/samsung-ril | Not upstreamed | N/A |
213 23 Denis 'GNUtoo' Carikli
| external/libsamsung-ipc | Not upstreamed | N/A |
214 40 Denis 'GNUtoo' Carikli
| hardware/tinyalsa-audio | Not upstreamed? | N/A |
215
216
h2. Links 
217
218 1 Denis 'GNUtoo' Carikli
* https://source.android.com/setup/build/requirements