Android Dev. How-To Guide: Compiling the Android/Linux kernel for the Epic Touch 4G

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MikeC84

MikeC84

Senior Member
Jun 21, 2010
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shanenielsen1234 said:
When you posted what your entire terminal section looked like I noticed you were missing the command: make c1_rev05_na_spr_defconfig

You might want to try it with that also, if you forgot to put it in...
Click to expand...
Click to collapse

Yea ill try it, I was going off what you posted.

shanenielsen1234 said:
Try this:
After you enter : "sudo make clean" and that goes through and its done, retype the "export CROSS_COMPILE=Path to toolchain" command then hit enter and type: "make -j5 CONFIG_INITRAMFS_SOURCE=/home/michaelc/Desktop/initramfs" Then see if it compiles after that.
Click to expand...
Click to collapse


I still get the same error uhhh...


michaelc@michaelc-iMac:~$ cd /home/michaelc/Desktop/SPH-D710_GB_Kernel
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ export CROSS_COMPILE=/home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ sudo make clean
[sudo] password for michaelc:
make: /opt/toolchains/arm-2009q3/bin/arm-none-linux-gnueabi-gcc: Command not found
CLEAN .tmp_versions
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make c1_rev05_na_spr_defconfig
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/docproc
HOSTCC scripts/basic/hash
HOSTCC scripts/kconfig/conf.o
scripts/kconfig/conf.c: In function ‘conf_sym’:
scripts/kconfig/conf.c:159:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c: In function ‘conf_choice’:
scripts/kconfig/conf.c:231:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c:307:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
scripts/kconfig/conf.c: In function ‘conf_askvalue’:
scripts/kconfig/conf.c:105:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
HOSTCC scripts/kconfig/kxgettext.o
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make modules
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
scripts/kconfig/conf -s arch/arm/Kconfig
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
CHK include/linux/version.h
CHK include/generated/utsrelease.h
make[1]: `include/generated/mach-types.h' is up to date.
CC kernel/bounds.s
/bin/sh: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$
 
Last edited:
D

dtm_stretch

Senior Member
Dec 22, 2010
477
163
Albany
@Mike

Just a heads up using the initramfs that Team Rogue has posted on their github compiled and flashed fine but seems to have broken wifi. I am sure it is my mistake somewhere in there though. The only thing I did was add the lib/module folder to their initramfs then copy the newly created modules over to there. Then I compiled.

I am sure I have just gotten a head of myself but I am very stoked that I was able to figure this out in one day.

**Also just learned, if you reboot into the stock recovery..it will reinstall of sprint's apps.
 
Last edited:
shanenielsen1234

shanenielsen1234

Senior Member
Jan 10, 2012
52
145
Temecula,CA
dtm_stretch said:
@Mike

Just a heads up using the initramfs that Team Rogue has posted on their github compiled and flashed fine but seems to have broken wifi. I am sure it is my mistake somewhere in there though. The only thing I did was add the lib/module folder to their initramfs then copy the newly created modules over to there. Then I compiled.

I am sure I have just gotten a head of myself but I am very stoked that I was able to figure this out in one day.
Click to expand...
Click to collapse

Great job! On getting it working
 
MikeC84

MikeC84

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Jun 21, 2010
1,513
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Google Pixel 6
Still getting the error after re-downloading the toolchain..


michaelc@michaelc-iMac:~$ cd /home/michaelc/Desktop/SPH-D710_GB_Kernel
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ export CROSS_COMPILE=/home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ sudo make clean
[sudo] password for michaelc:
make: /opt/toolchains/arm-2009q3/bin/arm-none-linux-gnueabi-gcc: Command not found
CLEAN .tmp_versions
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make c1_rev05_na_spr_defconfig
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/docproc
HOSTCC scripts/basic/hash
HOSTCC scripts/kconfig/conf.o
scripts/kconfig/conf.c: In function ‘conf_sym’:
scripts/kconfig/conf.c:159:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c: In function ‘conf_choice’:
scripts/kconfig/conf.c:231:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c:307:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
scripts/kconfig/conf.c: In function ‘conf_askvalue’:
scripts/kconfig/conf.c:105:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
HOSTCC scripts/kconfig/kxgettext.o
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make modules
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
scripts/kconfig/conf -s arch/arm/Kconfig
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
CHK include/linux/version.h
CHK include/generated/utsrelease.h
make[1]: `include/generated/mach-types.h' is up to date.
CC kernel/bounds.s
/bin/sh: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$
 
shanenielsen1234

shanenielsen1234

Senior Member
Jan 10, 2012
52
145
Temecula,CA
MikeC84 said:
Still getting the error after re-downloading the toolchain..


michaelc@michaelc-iMac:~$ cd /home/michaelc/Desktop/SPH-D710_GB_Kernel
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ export CROSS_COMPILE=/home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ sudo make clean
[sudo] password for michaelc:
make: /opt/toolchains/arm-2009q3/bin/arm-none-linux-gnueabi-gcc: Command not found
CLEAN .tmp_versions
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make c1_rev05_na_spr_defconfig
HOSTCC scripts/basic/fixdep
HOSTCC scripts/basic/docproc
HOSTCC scripts/basic/hash
HOSTCC scripts/kconfig/conf.o
scripts/kconfig/conf.c: In function ‘conf_sym’:
scripts/kconfig/conf.c:159:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c: In function ‘conf_choice’:
scripts/kconfig/conf.c:231:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c:307:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
scripts/kconfig/conf.c: In function ‘conf_askvalue’:
scripts/kconfig/conf.c:105:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
HOSTCC scripts/kconfig/kxgettext.o
HOSTCC scripts/kconfig/zconf.tab.o
HOSTLD scripts/kconfig/conf
#
# configuration written to .config
#
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make modules
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
scripts/kconfig/conf -s arch/arm/Kconfig
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
CHK include/linux/version.h
CHK include/generated/utsrelease.h
make[1]: `include/generated/mach-types.h' is up to date.
CC kernel/bounds.s
/bin/sh: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$
Click to expand...
Click to collapse

WOW!, Try running all the commands again but run it as root, "sudo su" enter password. Then continue with the make clean, CROSS_COMPILE, and make initramfs commands.

I think this is a permissions issue.
 
chris41g

chris41g

Inactive Recognized Developer
Sep 10, 2009
2,073
3,613
su will further complicate the issue...

what you need to do, is verify the existence of the cross_compile path

Code: 
export CROSS_COMPILE="/whatever/"
ls -l $CROSS_COMPILE*

paste that, if it looks correct, then do this

Code: 
sudo chmod 777 $CROSS_COMPILE*
 
MikeC84

MikeC84

Senior Member
Jun 21, 2010
1,513
836
Tucson
Google Pixel 6
chris41g said:
su will further complicate the issue...

what you need to do, is verify the existence of the cross_compile path

Code: 
export CROSS_COMPILE="/whatever/"
ls -l $CROSS_COMPILE*

paste that, if it looks correct, then do this

Code: 
sudo chmod 777 $CROSS_COMPILE*
Click to expand...
Click to collapse

Did this and still get the same error, fml, this seems so simple yet I can't get it.

Sent from my SPH-D710 using xda premium
 
MikeC84

MikeC84

Senior Member
Jun 21, 2010
1,513
836
Tucson
Google Pixel 6
shanenielsen1234 said:
MikeC84 said:
Did this and still get the same error, fml, this seems so simple yet I can't get it.

Sent from my SPH-D710 using xda premium

Did you maybe delete/add something when you added your last name to the makefile document? Thats
the only thing I can think of left...
Click to expand...
Click to collapse

Now that I think about it I was going to put my name and ended up not and might have left it blank. Ill check when I get back to my house.

Sent from my SPH-D710 using xda premium
Click to expand...
Click to collapse
 
agat63

agat63

Inactive Recognized Developer
Sep 14, 2010
3,987
7,937
Las Vegas, NV
Kernel compile went without errors. Phone boots to system.
But somewhere on the road I lost wifi.
I extracted initramfs from current kernel I'm using and compiled with it.
Still no go.
Wifi gives error.
Any suggestions or ideas?
 
D

dtm_stretch

Senior Member
Dec 22, 2010
477
163
Albany
agat63 said:
Kernel compile went without errors. Phone boots to system.
But somewhere on the road I lost wifi.
I extracted initramfs from current kernel I'm using and compiled with it.
Still no go.
Wifi gives error.
Any suggestions or ideas?
Click to expand...
Click to collapse

This is the same issue I had with the initramfs posted on the team rogue git. Which kernel did you use? Also how did you extract the initramfs from a compiled kernel?

Sent from my SPH-D710 using Tapatalk
 
MikeC84

MikeC84

Senior Member
Jun 21, 2010
1,513
836
Tucson
Google Pixel 6
chris41g said:
paste the results of
Code: 
ls -l $CROSS_COMPILE*
Click to expand...
Click to collapse

Code: 
michaelc@michaelc-iMac:~$ ls -l $CROSS_COMPILE*
-rw-r--r--  1 michaelc michaelc  179 2011-12-21 20:26 examples.desktop

android-sdk-linux:
total 40
drwxr-x---  2 michaelc michaelc 4096 2011-12-07 14:44 add-ons
drwxrwxr-x 16 michaelc michaelc 4096 2012-01-08 00:59 docs
drwxr-x---  3 michaelc michaelc 4096 2012-01-08 01:00 platforms
drwxrwxr-x  4 michaelc michaelc 4096 2012-01-08 00:56 platform-tools
drwxrwxr-x  3 michaelc michaelc 4096 2012-01-08 01:00 samples
-rw-r-----  1 michaelc michaelc 1158 2011-12-07 14:44 SDK Readme.txt
drwxrwxr-x  3 michaelc michaelc 4096 2012-01-08 01:01 sources
drwxrwxr-x  3 michaelc michaelc 4096 2012-01-08 01:02 system-images
drwxrwxr-x  2 michaelc michaelc 4096 2012-01-08 01:02 temp
drwxr-x---  6 michaelc michaelc 4096 2011-12-07 14:44 tools

Desktop:
total 2120
drwxrwxr-x 7 michaelc michaelc    4096 2012-01-06 16:21 arm-2009q3
drwx------ 6 michaelc michaelc    4096 2012-01-14 08:52 initramfs
-rw-rw-r-- 1 michaelc michaelc 2150766 2012-01-13 11:13 initramfs.tar.gz
-rwxr-xr-x 1 michaelc michaelc     387 2011-12-21 21:51 nautilus-home.desktop
drwx------ 6 michaelc michaelc    4096 2012-01-14 08:53 TDR-Epic4GTouch-Initramfs-cca14f2

Documents:
total 0

Downloads:
total 453168
-rw-rw-r-- 1 michaelc michaelc  36794815 2012-01-14 08:49 arm-2009q3 (1).tar.gz
-rw-rw-r-- 1 michaelc michaelc  36794815 2012-01-13 15:37 arm-2009q3.tar.gz
-rw-rw-r-- 1 michaelc michaelc 294910089 2011-12-21 23:00 Calkulin's_E4GT_ROM_v2.0.1a.zip
-rw-rw-r-- 1 michaelc michaelc   1204296 2012-01-08 21:30 Colors_v3.mtz
-rw-rw-r-- 1 michaelc michaelc  12297858 2011-12-21 22:04 opera_11.60.1185_amd64.deb
-rw-rw-r-- 1 michaelc michaelc  70232688 2012-01-14 08:54 SPH-D710_GB_Opensource.zip.crdownload
-rw-rw-r-- 1 michaelc michaelc   6430698 2012-01-13 12:07 StockACS5-EL26.zip
-rw-rw-r-- 1 michaelc michaelc   2678299 2012-01-14 08:51 TDR-Epic4GTouch-Initramfs-cca14f2 (1).zip
-rw-rw-r-- 1 michaelc michaelc   2678299 2012-01-13 11:15 TDR-Epic4GTouch-Initramfs-cca14f2.zip

Music:
total 41752
-rw-rw-r-- 1 michaelc michaelc 6530103 2012-01-08 14:30 Ave Maria.mp3
-rw-rw-r-- 1 michaelc michaelc 4175862 2012-01-08 15:22 Don't Sweat the Technique.mp3
-rw-rw-r-- 1 michaelc michaelc 5810262 2012-01-08 15:47 I Am The Bullgod.mp3
-rw-rw-r-- 1 michaelc michaelc 4486048 2012-01-08 15:29 It's All Abut the Benjamins.mp3
-rw-rw-r-- 1 michaelc michaelc 3673328 2012-01-08 15:20 Paid in Full.mp3
-rw-rw-r-- 1 michaelc michaelc 7282435 2012-01-08 15:09 Passin' Me By.mp3
-rw-rw-r-- 1 michaelc michaelc 7003533 2012-01-08 15:26 Runnin'.mp3
-rw-rw-r-- 1 michaelc michaelc 3780022 2012-01-08 15:32 Still Not a Player.mp3

Pictures:
total 2100
-rw-rw-r-- 1 michaelc michaelc 2146358 2012-01-13 15:19 Screenshot at 2012-01-13 15:19:49.png

Public:
total 0

Templates:
total 0

Videos:
total 0
michaelc@michaelc-iMac:~$
 
chris41g

chris41g

Inactive Recognized Developer
Sep 10, 2009
2,073
3,613
you have to export CROSS_COMPILE first.. that reading was just a listing of *
 
MikeC84

MikeC84

Senior Member
Jun 21, 2010
1,513
836
Tucson
Google Pixel 6
chris41g said:
you have to export CROSS_COMPILE first.. that reading was just a listing of *
Click to expand...
Click to collapse

Code: 
michaelc@michaelc-iMac:~$ ls -l $CROSS_COMPILE*
-rwxr-xr-x 1 michaelc michaelc  547548 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-addr2line
-rwxr-xr-x 2 michaelc michaelc  572276 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-ar
-rwxr-xr-x 2 michaelc michaelc  954492 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-as
-rwxr-xr-x 2 michaelc michaelc  208012 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-c++
-rwxr-xr-x 1 michaelc michaelc  547324 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-c++filt
-rwxr-xr-x 1 michaelc michaelc  206956 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-cpp
-rwxr-xr-x 2 michaelc michaelc  208012 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-g++
-rwxr-xr-x 2 michaelc michaelc  205388 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc
-rwxr-xr-x 2 michaelc michaelc  205388 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc-4.4.1
-rwxr-xr-x 1 michaelc michaelc   26760 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcov
-rwxr-xr-x 1 michaelc michaelc 3036208 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gdb
-rwxr-xr-x 1 michaelc michaelc 3036208 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gdbtui
-rwxr-xr-x 1 michaelc michaelc  607136 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gprof
-rwxr-xr-x 2 michaelc michaelc  818880 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-ld
-rwxr-xr-x 2 michaelc michaelc  555612 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-nm
-rwxr-xr-x 2 michaelc michaelc  703284 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-objcopy
-rwxr-xr-x 2 michaelc michaelc  833532 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-objdump
-rwxr-xr-x 2 michaelc michaelc  572308 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-ranlib
-rwxr-xr-x 1 michaelc michaelc  307848 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-readelf
-rwxr-xr-x 1 michaelc michaelc  750864 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-run
-rwxr-xr-x 1 michaelc michaelc  547584 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-size
-rwxr-xr-x 1 michaelc michaelc  342540 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-sprite
-rwxr-xr-x 1 michaelc michaelc  547516 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-strings
-rwxr-xr-x 2 michaelc michaelc  703284 2009-10-16 09:56 /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-strip
 
MikeC84

MikeC84

Senior Member
Jun 21, 2010
1,513
836
Tucson
Google Pixel 6
Code: 
michaelc@michaelc-iMac:~$ cd /home/michaelc/Desktop/SPH-D710_GB_Kernel
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ export CROSS_COMPILE=/home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ sudo make clean
[sudo] password for michaelc: 
make: /opt/toolchains/arm-2009q3/bin/arm-none-linux-gnueabi-gcc: Command not found
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make c1_rev05_na_spr_defconfig
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/docproc
  HOSTCC  scripts/basic/hash
  HOSTCC  scripts/kconfig/conf.o
scripts/kconfig/conf.c: In function ‘conf_sym’:
scripts/kconfig/conf.c:159:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c: In function ‘conf_choice’:
scripts/kconfig/conf.c:231:6: warning: variable ‘type’ set but not used [-Wunused-but-set-variable]
scripts/kconfig/conf.c:307:9: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
scripts/kconfig/conf.c: In function ‘conf_askvalue’:
scripts/kconfig/conf.c:105:8: warning: ignoring return value of ‘fgets’, declared with attribute warn_unused_result [-Wunused-result]
  HOSTCC  scripts/kconfig/kxgettext.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/lex.zconf.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
#
# configuration written to .config
#
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$ make modules
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
scripts/kconfig/conf -s arch/arm/Kconfig
make: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: Command not found
  CHK     include/linux/version.h
  UPD     include/linux/version.h
  CHK     include/generated/utsrelease.h
  UPD     include/generated/utsrelease.h
  Generating include/generated/mach-types.h
  CC      kernel/bounds.s
/bin/sh: /home/michaelc/Desktop/arm-2009q3/bin/arm-none-eabi-gcc: not found
make[1]: *** [kernel/bounds.s] Error 127
make: *** [prepare0] Error 2
michaelc@michaelc-iMac:~/Desktop/SPH-D710_GB_Kernel$


http://pastebin.com/0nEqmpyN
 
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    shanenielsen1234
    shanenielsen1234
    Android Development How-To: Compiling the Android/Linux kernel for the Epic Touch 4G.

    NOW INCLUDES ROOT!!!

    Introduction: This guide is meant for people who want to get started with android development and don't know where to start. This thread can also be used as a reference place for android development on the et4g. This guide well first be on compiling the android kernel and flashing it to your phone and, I well update it on a regular basis for more complex mods and such to get you familiar with the android platform. If at anytime anyone would like to add more to this, pm me with what you would like to add or fix. Android is an open-source wonderland and I feel like more people should experience the fun of android development. Just remember I am not responsible if you do something stupid and break your phone!

    First, we are going to get familiar with the android kernel by compiling a stock build and flashing it with Odin to your et4g.

    What you need to download to compile the kernel:

    Samsung open-source kernel and platform files. Available at: Samsung Open Source
    Type in: Sph-d710 in the search bar in the link and download latest source.

    initramfs files (More on this later) (includes cwm, busy box, and of course root! Thanks to chris41g for his help.) Files available at: Initramfs Files

    Tool chain for compiling: Available at: Arm-toolchain

    Preferably Ubuntu or another Distro. Of Linux running on a partition or Virtual machine.




    Step 1: Were going to unzip the source you got from Samsung and take a short look around.

    unzip the source and unzip the file that says, “SPH-D710_GB_Kernel.tar.gz” and, open it up. You are now looking at the kernel source for the Epic touch 4g! Okay I well not go over to much whats is here but, I well add a more in depth look in the kernel soon.

    Scroll to the bottom of the source and you should see a document that says, "makefile". We are just going to add a name for your stock compile of the kernel, to make it a little more special. Open it and go to where it says Extra version and add your last name ,just make it all lower case letters or it wont compile correctly. When you flash it to your phone, the about phone panel in setting well say: Kernel version: 2.6 [last name you chose] now.



    Step 2: Lets get started!

    Open terminal in Linux and change your directory to the kernel. You do this by putting,
    “cd” and then typing where your kernel source is then hit enter. My terminal looked like this:
    cd /home/shane/Desktop/SPH-D710_GB_Kernel
    Click to expand...
    Click to collapse



    Step 3: Tell terminal where your tool chains you downloaded are located.

    The kernel is compiled using a tool chain, and the terminal needs to know where the tool chain is to compile. (The tool chain is the folder called “arm-2009q3” )Start by typing this in the terminal:
    export CROSS_COMPILE=
    Click to expand...
    Click to collapse
    Then after that put where your tool chain is located. Also when you are entering where it is at, you need to put a “/bin/arm-none-eabi-” at the end of the directory. This shows the terminal that the compiling tools are under the folder bin and starts with arm-none-eabi- and the android compilation adds the last word for the compiler program it needs. (you can see this if you go into the bin folder under the “arm-2009q3 folder.) For adding the tool chain I entered this:
    export CROSS_COMPILE=/home/shane/Desktop/arm-2009q3/bin/arm-none-eabi-
    Click to expand...
    Click to collapse

    Then hit enter.

    Step 4: Clean the kernel, enter configuration files and make the modules.

    Enter this command:
    sudo make clean
    Click to expand...
    Click to collapse

    Then enter password and hit enter.

    Then it well say something like:
    make: /opt/toolchains/arm-2009q3/bin/arm-none-linux-gnueabi-gcc: Command not found
    Click to expand...
    Click to collapse

    IGNORE THIS! It is just a fragment in a configuration file that says the toolchain is not in the default location. But, we changed the tool chain location in step 3 so it well compile correctly.

    This cleans up and organizes the kernel for compilation.

    Now enter this command in terminal:
    make c1_rev05_na_spr_defconfig
    Click to expand...
    Click to collapse

    This is the configuration files for the epic touch 4g and well compile the kernel based off what is in these files.

    Now were going to compile all the modules so wifi,vibration... work.
    Enter this in terminal:
    make modules
    Click to expand...
    Click to collapse


    Step 5: Moving the newly compiled modules to the initramfs/lib/modules folder.
    We are now going to move the modules from the newly compiled modules to the initramfs files. So that wifi and vibration well be working in our kernel.

    *Initramfs files are the root filesystem of the kernel and does processes the kernel can't do itself while its booting.

    You can do this by terminal or by hand. We are just moving the modules to the initramfs to be used when compiling the kernel.
    You can type this into terminal (Where it says “Path to initramfs” you need to replace with your own path to the initramfs folder + /lib/modules) :

    cp drivers/samsung/j4fs/j4fs.ko Path to initramfs/lib/modules
    cp drivers/scsi/scsi_wait_scan.ko Path to initramfs/lib/modules
    cp drivers/bluetooth/bthid/bthid.ko Path to initramfs/lib/modules
    cp drivers/net/wireless/bcm4330/dhd.ko Path to initramfs/lib/modules
    cp drivers/samsung/vibetonz/vibrator.ko Path to initramfs/lib/modules
    cp drivers/staging/westbridge/astoria/switch/cyasswitch.ko Path to initramfs/lib/modules
    Click to expand...
    Click to collapse

    This copies the new modules out of the kernel source and puts them in the initramfs/lib/modules folder to be used later.

    Now once you enter that press enter.

    Step 7: Compiling the android kernel with initramfs.

    Type this in terminal:
    make -j5 CONFIG_INITRAMFS_SOURCE=Path to initramfs file
    Click to expand...
    Click to collapse

    *Remember to replace the “path to initramfs file” with the path to the initramfs file.

    Okay this well take anywhere from 5-15 mins. to compile depending on your system.

    Step 8: Were done compiling, lets make something flashable for Odin!

    Just type in terminal:
    cd arch/arm/boot/
    Click to expand...
    Click to collapse

    Then type:
    tar cvf MyKernel.tar zImage
    Click to expand...
    Click to collapse

    This well zip up the zimage (the kernel) you just compiled to something flashable in odin.

    If you open up the kernel source file and go to arch/arm/boot you well see the zimage you compiled and, the Mykernel.tar file for Odin. Double check and right click on the zimage and make sure it is around 5-6 MB before flashing.

    Step 9: Flashing to your phone.

    Go to a windows computer and download Odin.(if you have rooted your phone using zedomax's method you should have it installed already)

    Okay now open it up and place the Mykernel.tar file in the PDA section of Odin. Now download the drivers for your phone if you haven't.(I assume you already have.) Then put your phone in download mode (hold volume down button and power button on start up and push volume up button when the warning pops up) Now plug your phone into the computer and make sure “auto-reboot” is the only box checked in Odin. Hit start and your phone well be flashed with a kernel you compiled yourself! If you did this right your phone should start up. If it is stuck in a boot loop, immediately put back in download mode and flash to stock. Link available here to stock files:
    http://xdaforums.com/showthread.php?t=1409634
    and, try to figure out what you did wrong while compiling and try again!

    Good job you have finished! :D:D:D


    Step 10: The future and your new phone!

    I would like to include more android kernel mods and stuff in the future but, wanted to get this out there to get people familiar with the android compiling process. I want this guide to be something people reference as they start to develop, by using the methods here along with kernel and U.I mods on the platform being implemented in the future. My ultimate goal is to at least know I helped at least one person get into android development so, if I helped you please leave a reply or say thanks. If anyone has ideas to add to the post, please pm me.
    Have fun developing!
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    E
    Entropy512
    I'd strongly recommend adding some documentation on using git - any kernel developer should be using git to maintain their kernels. It makes bringing in upstream patches MUCH easier, and also publishing source is a lot easier.

    Doing "git push origin" to a public repository like github or gitorious (I prefer github, gitorious seems buggy to me) take a LOT less time and bandwidth than pushing an entire new tarball for a given kernel release.

    A few git tips:
    • Try to keep changes to "one feature, one commit". In addition to making the lives of other developers who want to apply your feature to another device easier, it will make your OWN life easier if you start working on another device.
    • Keep defconfig changes separate from the kernel commit that adds the feature being enabled/disabled/configured using the defconfig change. Otherwise the defconfig change will make the commit unlikely to apply cleanly to another source tree
    • To get a properly formatted git-am commitable patch, append .patch to the URL of a github page - example: https://github.com/Entropy512/linux_kernel_sgh-i777/commit/fc9eb85807302583259e27013ed184a43107bb67 becomes https://github.com/Entropy512/linux...c9eb85807302583259e27013ed184a43107bb67.patch
    • Patches made as described above can be committed using "git am filename.patch" - this preserves attribution to the original author of the commit. It's not required (Edit: Actually, on further thought, some of the legal rules relating to copyrights may require that authorship be preserved - better safe than sorry!) but a nice thing to do and makes other kernel maintainers more likely to cooperate with you. They may even start coming to your kernel thread and posting useful patches.
    • DO NOT rebase commits you've already pushed to a public repo, this practice is considered mortal git-sin, even Torvalds has written rants against this practice - Worst case this means more than one commit for a given feature. (e.g. initial feature commit, cleanup/bugfix commit). If you do this, ideally reference the commit you're fixing up.
    • When reverting something, make a comment why you're doing the revert - Otherwise someone will wonder what was wrong with the feature you reverted
    • In general, try to be descriptive with your changes in the commit description - what you're changing and why - I suggest doing some research and looking at how commits are made on the mainline Linux kernel.

    One which I should be doing, but have been lazy about:
    When you do a release, you can tag that branch/revision so it is easily identifiable as the branch for this release. I admit I haven't done this nearly as often as I should.
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    shanenielsen1234
    shanenielsen1234
    I'll take this...
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    shanenielsen1234
    shanenielsen1234
    and this...
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    shanenielsen1234
    shanenielsen1234
    One more...
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