Project

General

Profile

DeprecatedPortingToAndroid10 » History » Version 111

Denis 'GNUtoo' Carikli, 04/04/2019 02:07 PM

1 1 Denis 'GNUtoo' Carikli
h1. Porting Replicant to Android 9
2
3 101 Denis 'GNUtoo' Carikli
{{>toc}}
4 1 Denis 'GNUtoo' Carikli
5 101 Denis 'GNUtoo' Carikli
h2. AOSP 9
6
7
h3. Status with AOSP 9
8
9 98 Denis 'GNUtoo' Carikli
* The Galaxy SIII 4G (i9305) boots (with graphics hacks) under AOSP9, without having to import nonfree libraries:
10 99 Denis 'GNUtoo' Carikli
** The device boots until the lock screen
11 98 Denis 'GNUtoo' Carikli
** The graphics work but are really slow as they have not been optimized
12 49 Denis 'GNUtoo' Carikli
** Sometime the display content is corrupted
13 1 Denis 'GNUtoo' Carikli
** The touchscreen works
14 100 Denis 'GNUtoo' Carikli
* 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
15
16
h3.  Repositories and changes
17 46 Denis 'GNUtoo' Carikli
 
18
* git://git.putti.eu/aosp/manifest_i9305.git
19
* git://git.putti.eu/aosp/kernel_i9305.git
20 1 Denis 'GNUtoo' Carikli
* git://git.putti.eu/aosp/device_i9305.git
21 109 Denis 'GNUtoo' Carikli
* git://git.putti.eu/aosp/external_mesa3d.git
22 110 Denis 'GNUtoo' Carikli
* git://git.putti.eu/aosp/build_make.git
23 111 Denis 'GNUtoo' Carikli
* git://git.putti.eu/aosp/core.git
24 1 Denis 'GNUtoo' Carikli
25 100 Denis 'GNUtoo' Carikli
h3. Building AOSP version
26 1 Denis 'GNUtoo' Carikli
27 100 Denis 'GNUtoo' Carikli
h4. Source code
28 88 Denis 'GNUtoo' Carikli
29 46 Denis 'GNUtoo' Carikli
First get the source code:
30 1 Denis 'GNUtoo' Carikli
<pre>
31 46 Denis 'GNUtoo' Carikli
$ repo init -u git://git.putti.eu/aosp/manifest_i9305.git -b android-9.0.0
32 1 Denis 'GNUtoo' Carikli
</pre>
33 88 Denis 'GNUtoo' Carikli
34 100 Denis 'GNUtoo' Carikli
h4. For Trisquel8
35 45 Denis 'GNUtoo' Carikli
<pre>
36 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
37
</pre>
38
39 100 Denis 'GNUtoo' Carikli
h4. Building it
40 88 Denis 'GNUtoo' Carikli
41
Once this is done, see the device/putti/i9305/README.md for the build instructions.
42
43 100 Denis 'GNUtoo' Carikli
h4. Trisquel 8 LXC
44 88 Denis 'GNUtoo' Carikli
45
If you use Parabola, you may be interested in running Trisquel 8 in LXC.
46
47
To do that first debootstrap a Trisquel 8 rootfs. 
48
49
Parabola's debootstrap does support Trisquel 8 and its manual has an example on how to do that:
50
<pre>
51
$ man debootstrap
52
[...]
53
# debootstrap flidas flidas-root http://archive.trisquel.info/trisquel
54
</pre>
55
56
Then you can use virt-manager to setup the LXC instance.
57
58 89 Denis 'GNUtoo' Carikli
The advantages of this solution are that:
59 88 Denis 'GNUtoo' Carikli
* The LXC guest and host shares their resources (CPU, RAM) with almost no penalty
60
* Trisquel 8 is not a rolling release distribution
61
62
The disadvantage of this solution are that:
63
* you need to configure again the Trisquel 8 LXC instance (vimrc, sshd_config, etc)
64 1 Denis 'GNUtoo' Carikli
* It's more complicated to setup
65 90 Denis 'GNUtoo' Carikli
* The Android build system output a warning message about not being able to use namespaces which may become mandatory in newer Android versions
66 48 Denis 'GNUtoo' Carikli
67 102 Denis 'GNUtoo' Carikli
h2. LineageOS 16
68
69
h3. Building LineageOS 16 version
70
71 105 Denis 'GNUtoo' Carikli
h4. Status with LineageOS 16
72
73
The work hasn't started yet, to save time the documentation is done at the same moment as the work.
74
75
h4. Repositories and changes
76
77 106 Denis 'GNUtoo' Carikli
LineageOS 16 with the following:
78
* git://git.putti.eu/aosp/kernel_i9305.git
79
* git://git.putti.eu/aosp/device_i9305.git
80 105 Denis 'GNUtoo' Carikli
81 102 Denis 'GNUtoo' Carikli
h4. Source code
82
83
TODO
84
85
h4. For Trisquel8
86
<pre>
87 107 Denis 'GNUtoo' Carikli
sudo apt-get install bc bison build-essential ccache curl flex g++-multilib gcc-multilib git gnupg gperf imagemagick lib32ncurses5-dev lib32readline-dev lib32z1-dev liblz4-tool libncurses5-dev libsdl1.2-dev libssl-dev libwxgtk3.0-dev libxml2 libxml2-utils lzop pngcrush rsync schedtool squashfs-tools xsltproc zip zlib1g-dev gcc-5-arm-linux-gnueabi
88 102 Denis 'GNUtoo' Carikli
</pre>
89
90 104 Denis 'GNUtoo' Carikli
h4. Launching the build
91
92 1 Denis 'GNUtoo' Carikli
<pre>
93 104 Denis 'GNUtoo' Carikli
$ source build/envsetup.sh
94 106 Denis 'GNUtoo' Carikli
$ breakfast aosp_i9305-userdebug
95 108 Denis 'GNUtoo' Carikli
$ cd device/putti/i9305-kernel
96
$ ARCH=arm make midas_defconfig && ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- make zImage dtbs && cat arch/arm/boot/zImage arch/arm/boot/dts/exynos4412-i9305.dtb > Image.gz-dtb
97
98 104 Denis 'GNUtoo' Carikli
</pre>
99
100 45 Denis 'GNUtoo' Carikli
h2. TODO
101 38 Denis 'GNUtoo' Carikli
102 87 Denis 'GNUtoo' Carikli
First month of full time equivalent work:
103
104 51 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
105 74 Denis 'GNUtoo' Carikli
| -boot a device under AOSP9- | DONE | Only boots with graphics, not much more |
106 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- 
107
Builds under Trisquel8|
108 57 Denis 'GNUtoo' Carikli
| * port the changes from AOSP9 to LineageOS 16
109
* cleanup the code
110 59 Denis 'GNUtoo' Carikli
* build the kernel from the Android build system
111
* make sure it builds with an FSDG compliant distribution
112 73 Denis 'GNUtoo' Carikli
* document the build procedure | 21h | |
113
| find, remove and document proprietary software in LineageOS 16 | 14h | |
114 1 Denis 'GNUtoo' Carikli
| find, remove and document privacy issues in LineageOS 16 | 21h | |
115 94 Denis 'GNUtoo' Carikli
| port the touch keys Linux driver | 7h | |
116
| port the AAT1290 flash led Linux driver | 7h | |
117 95 Denis 'GNUtoo' Carikli
| rebrand LineageOS as Replicant | 7h | |
118
| port and cleanup the the Galaxy SIII (i9300) "modem":https://github.com/fourkbomb/linux/tree/modem Linux driver from 4.16 to 5.0 | 70h | |
119 1 Denis 'GNUtoo' Carikli
|_. Total |_. 147h | ~1 month |
120 93 Denis 'GNUtoo' Carikli
121 1 Denis 'GNUtoo' Carikli
Second month of full time equivalent work:
122 95 Denis 'GNUtoo' Carikli
| * port  libsamsung-ril and libsamsung-ipc to Android 9
123
* Make the modem driver and libsamsung-ipc work together | 157h | libsamsung-ipc should be trivial, libsamsung-ril probably needs to be heavily adapted to Trebble or the new RIL interfaces |
124 75 Denis 'GNUtoo' Carikli
|_. Total |_. 157h | ~1 month |
125
126 87 Denis 'GNUtoo' Carikli
Third month of full time equivalent work:
127 1 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
128 75 Denis 'GNUtoo' Carikli
| port the sensors libraries and other device specific libraries | 70h | |
129 57 Denis 'GNUtoo' Carikli
| add support for Audio | 70h | Might be way faster, depending on what Android 9 uses |
130 77 Denis 'GNUtoo' Carikli
| add support for the Galaxy SIII (i9300) and factorize the code with i9305 | 14h | |
131 76 Denis 'GNUtoo' Carikli
|_. Total |_. 154h | ~1 month |
132
133
|_. Task |_. Time estimation |_. Comments |
134 67 Denis 'GNUtoo' Carikli
| create a recovery | 21h | |
135 71 Denis 'GNUtoo' Carikli
| add internal WiFi support and validate the functionality | 6h | |
136 96 Denis 'GNUtoo' Carikli
| add external WiFi dongles support | 20h | External dongles support might be tricky |
137 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.
138 71 Denis 'GNUtoo' Carikli
We also created generic instructions but they tend to be harder to follow[1] than the device specific ones.
139
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. |
140 1 Denis 'GNUtoo' Carikli
141 92 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
142
| Estimate the amount of work to Reduce the attack surface | ? | |
143
| Estimate the amount of work to add in-system upgrades | ? | |
144 71 Denis 'GNUtoo' Carikli
145
fn1. The generic instructions were tested at Install parties in Paris 
146 1 Denis 'GNUtoo' Carikli
147
h3. Devices support:
148
149 82 Denis 'GNUtoo' Carikli
h4. Easy, because it's similar enough to the Galaxy SIII (I9300)
150 1 Denis 'GNUtoo' Carikli
151 85 Denis 'GNUtoo' Carikli
|_\3. Galaxy Note II (N7100) |
152 77 Denis 'GNUtoo' Carikli
|_. Task |_. Time estimation |_. Comments |
153 97 Denis 'GNUtoo' Carikli
| port the EA8061 LCD Linux driver | 35h | |
154
| port the S6EVR02 LCD Linux driver | 35h | |
155 94 Denis 'GNUtoo' Carikli
| port the MAX77693 flash led Linux driver | 7h | |
156 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 |
157
| port the sensors libraries and other device specific libraries | 70h | It's difficult to evaluate how much time it could take |
158
| add support for Audio | 14h | Should be similar to the Galaxy SIII |
159
160
|_\3. Galaxy Note 8.0 (N5100) and 8.0 WiFi (N5110) |
161
|_. Task |_. Time estimation |_. Comments |
162
| Evaluate the time required to do the port | 14h | TODO |
163 1 Denis 'GNUtoo' Carikli
164 70 Denis 'GNUtoo' Carikli
h4. Needs more work and unknown upstream Linux status
165
166 69 Denis 'GNUtoo' Carikli
|_. Device |_. Time estimation |_. Comments |
167 94 Denis 'GNUtoo' Carikli
| Galaxy S II (i9100) | | Linux: devboard dts upstream? unknown status |
168
| Galaxy Note (N7000) | | unknown Linux upstream status |
169 54 Denis 'GNUtoo' Carikli
| Galaxy Nexus (I9250) | |/2. OMAP4, no dts upsrteam |
170
| Galaxy Tab 2 7.0 (P3100), 7.0 WiFi (P3110), 10.1 (P5100), 10.1 WiFi (P5110) | |
171
| GTA04 >= A4 | | TODO: a RIL needs to be written, userspace GPS support is missing, audio scenarios, etc |
172 34 Denis 'GNUtoo' Carikli
173
h2. Replicant 6.0 changes
174 2 Denis 'GNUtoo' Carikli
175 4 Denis 'GNUtoo' Carikli
|_. Repository path |_. rebase worked |_. Changes |
176 22 Denis 'GNUtoo' Carikli
| build | No | |
177 1 Denis 'GNUtoo' Carikli
| manifest | No | N/A |
178 32 Denis 'GNUtoo' Carikli
| bootable/recovery | Yes | * UI changes to improve usability 
179 5 Denis 'GNUtoo' Carikli
* Branding
180 31 Denis 'GNUtoo' Carikli
* Small fix(es) | 
181 4 Denis 'GNUtoo' Carikli
| external/boringssl | Yes | * Small fix(es) |
182
| external/heimdall | No | |
183
| frameworks/av | Yes | * Software rendering fix(es) |
184
| frameworks/base | Yes | * WiFi fixe(s) for external dongles
185
* Software rendering fix(es) 
186
* Privacy fix(es) 
187 1 Denis 'GNUtoo' Carikli
* Security improvements 
188 5 Denis 'GNUtoo' Carikli
* Usability improvements |
189
| frameworks/native | No |
190
| hardware/broadcom/wlan | Yes | * Remove nonfree software |
191 10 Denis 'GNUtoo' Carikli
| hardware/libhardware | Yes | * Software rendering fix(es) |
192 5 Denis 'GNUtoo' Carikli
| hardware/libhardware_legacy | Yes | * Don't depend on nonfree software |
193
| hardware/ti/omap4 | Yes | * Remove nonfree software 
194 33 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software 
195
* Small fix(es) |
196 6 Denis 'GNUtoo' Carikli
| libcore | Yes | * Small fix(es) | 
197 8 Denis 'GNUtoo' Carikli
| packages/apps/Browser | Yes | * Privacy fix(es) 
198 33 Denis 'GNUtoo' Carikli
* Branding
199 7 Denis 'GNUtoo' Carikli
* Small fix(es) |
200 33 Denis 'GNUtoo' Carikli
| packages/apps/LegacyCamera | Yes | * Software rendering fix(es)
201 22 Denis 'GNUtoo' Carikli
* Small fix(es) |
202
| packages/apps/RepWifi | Not upstreamed, obsolete | N/A |
203 11 Denis 'GNUtoo' Carikli
| packages/apps/ReplicantWallpapers | Not upstreamed | * Branding |
204
| packages/apps/Settings | No | |
205
| packages/apps/SetupWizard | Yes | * Privacy fix(es) 
206
* Don't depend on nonfree software
207 12 Denis 'GNUtoo' Carikli
* Branding |
208
| packages/apps/ThemeChooser | Yes | * Privacy fix(es) ?
209 33 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software ? |
210 13 Denis 'GNUtoo' Carikli
| packages/providers/ContactsProvider | Yes | * Small fix(es) |
211
| system/core | Yes | * Branding
212
* various fixes |
213
| vendor/replicant | No | |
214 14 Denis 'GNUtoo' Carikli
| vendor/cmsdk | Yes | * Branding |
215
| external/chromium-webview | ? | ? |
216
| external/drm_gralloc | Yes | * Software rendering fix(es) |
217
| external/llvm | Yes | * Software rendering fix(es) |
218
| external/mesa3d |  Yes | * Software rendering fix(es)
219 33 Denis 'GNUtoo' Carikli
* Performance debugging for software rendering |
220 14 Denis 'GNUtoo' Carikli
| external/parameter-framework | Yes | * Small fix(es) |
221
| external/protobuf | N/A | No changes |
222
| prebuilts/ndk | ? | ? |
223 33 Denis 'GNUtoo' Carikli
| prebuilts/sdk | ? | ? |
224
| sdk | Yes | * Small fix(es) |
225 14 Denis 'GNUtoo' Carikli
| toolchain/src/binutils | Yes | * Small fix(es) |
226 33 Denis 'GNUtoo' Carikli
| toolchain/src/gcc | No | |
227
| toolchain/src/jack | Yes | * Small fix(es) |
228 22 Denis 'GNUtoo' Carikli
| toolchain/src/jill | Yes | * Small fix(es) |
229 1 Denis 'GNUtoo' Carikli
| kernel/samsung/smdk4412 |/3. Yes |/3. * Security fixes
230
* Privacy Fixes (TrustZone)
231 20 Denis 'GNUtoo' Carikli
* Don't depend on nonfree software
232 33 Denis 'GNUtoo' Carikli
* Remove nonfree software
233 22 Denis 'GNUtoo' Carikli
* Small fix(es) |
234
| kernel/samsung/tuna |
235 28 Denis 'GNUtoo' Carikli
| kernel/samsung/espresso10 |
236
| device/samsung/i9100 | No |/14. * Replace nonfree software by free software
237
* free software sensors implementation(s)
238 25 Denis 'GNUtoo' Carikli
* free software modem audio implementation(s)
239 29 Denis 'GNUtoo' Carikli
* Software rendering fix(es)
240
* Privacy Fixes (TrustZone)
241
* Don't depend on nonfree software
242 1 Denis 'GNUtoo' Carikli
* Remove nonfree software
243 33 Denis 'GNUtoo' Carikli
* Branding
244 1 Denis 'GNUtoo' Carikli
* Small fix(es) |
245
| device/samsung/n7000 | Yes |
246
| device/samsung/i9300 | No |
247
| device/samsung/i9305 | No |
248 29 Denis 'GNUtoo' Carikli
| device/samsung/n7100 | Yes |
249
| device/samsung/n5100 | Yes |
250
| device/samsung/n5110 | Yes |
251
| device/samsung/maguro | Yes |
252 30 Denis 'GNUtoo' Carikli
| device/samsung/tuna | Yes |
253
| device/samsung/espressowifi | Yes |
254
| device/samsung/espresso3g | Yes |
255
| device/samsung/galaxys2-common | Yes |
256
| device/samsung/smdk4412-common | No |
257 22 Denis 'GNUtoo' Carikli
| device/samsung/kona-common | Yes |
258
| hardware/ril/samsung-ril | Not upstreamed | N/A |
259 23 Denis 'GNUtoo' Carikli
| external/libsamsung-ipc | Not upstreamed | N/A |
260 40 Denis 'GNUtoo' Carikli
| hardware/tinyalsa-audio | Not upstreamed? | N/A |
261
262
h2. Links 
263
264 1 Denis 'GNUtoo' Carikli
* https://source.android.com/setup/build/requirements