FULL sources (system and kernel) for KitKat on Rockchip

[d33]

I decided to start from scratch, this time with a 64-bit kernel.

• Installed Ubuntu 13.10 amd64
• Got all the required libraries and toolchain
  • sudo apt-get install git-core gnupg flex bison gperf libsdl-dev libesd0-dev libwxgtk2.8-dev build-essential zip curl libncurses5-dev zlib1g-dev gcc-multilib g++-multilib sharutils lzop gcc-arm-linux-gnueabi
• copied the kernel sources to ~\android\kernel
• renamed the suppiled kernel to kernel.img.orig
• Make the kernel creating app executable
  • chmod 755 mkkrnlimg
• ran make clean
• ran "make ARCH=arm CROSS_COMPILE=arm-linux-gnueabi- kernel.img

Which results in ... the ipt_ecn header error.

Copy ipt_ecn.h, xt_dspc.h & xt_ecn.h locally
I edit ipt_ecn.c to point to a local copy of the header.
I edit ipt_ech.h to point to a local copy of xt_ecn.h
I edit xt_ecn.h to point to a local copy of xt_dspc.h

I execute the make command again and I get successful compile and kernel creation.

But I do a binary compare of the original kernel and the one I just built and just about every byte is different

• cmp -l kernel.img kernel.img.orig
  

kernel doesn't boot.

[d33]

Great post, that toolchain seems to make the difference on my system. I now have a compiled kernel.

Now I just need to understand what I'm doing and then look at compiling for a tablet.

Thanks again

But does it boot? I can't seem to make bootable kernels!!!

Is there a step I'm missing? What error am I making?

[900supersport]

No idea if it boots, I have nothing to test it on. If I can sort out building kitkat from sources then I can start researching how I might build a kernel for the cube u30gt2.

What system and boot are you using with the kernel?

[d33]

• Make the kernel creating app executable
  • chmod 755 mkkrnlimg

...

Which results in ... the ipt_ecn header error.


Copy ipt_ecn.h, xt_dspc.h & xt_ecn.h locally
I edit ipt_ecn.c to point to a local copy of the header.
I edit ipt_ech.h to point to a local copy of xt_ecn.h
I edit xt_ecn.h to point to a local copy of xt_dspc.h

These issues were caused because I downloaded in Windows and copied across. When I deleted everything and downloaded the .tar.gz to linux these disappeared and the kernel compiles without issue

However, still is not bootable.

I've spent a whole weekend on this and am extremely frustrated that I can't make a bootable kernel when others can.

If anyone has the foggiest why I'm incompetent please provide a pointer.

[raxy]

darrellr,
maybe it has something to do with the loading procedure not beeing ok with this kernel ?

once you get the kernel.img file built, what do you do next to make the device boot it ?

[raxy]

.config

to those who managed to compile,
I guess you did not use "make prproper; make kernel.img" but used "mkkrnlimg" instead.
Using the fisrt option,
I was blocked by a question regarding EXPANDED_GPIO_NUM below that I was unable to answer, forcing me to abort the process for now.

tks
edit : mylog...

https://github.com/thesawolf/android_kernel_rockchip_rk3188.gitraxy@ubuntu:/host/workfiles/android-kernel-kitchen/kernelkitkathdmistick$ make kernel.img
scripts/kconfig/conf --silentoldconfig Kconfig
.config:2645:warning: symbol value '' invalid for EXPANDED_GPIO_NUM
.config:2646:warning: symbol value '' invalid for EXPANDED_GPIO_IRQ_NUM
.config:4221:warning: USB_AUDIO creates inconsistent choice state
.config:4229:warning: USB_MIDI_GADGET creates inconsistent choice state
.config:4232:warning: USB_G_NOKIA creates inconsistent choice state
.config:4236:warning: USB_G_WEBCAM creates inconsistent choice state
warning: (SND_SOC_ALL_CODECS) selects SND_SOC_RK616 which has unmet direct dependencies (SOUND && !M68K && SND && SND_SOC && MFD_RK616)
warning: (SND_SOC_ALL_CODECS) selects SND_SOC_RK610 which has unmet direct dependencies (SOUND && !M68K && SND && SND_SOC && MFD_RK610)
warning: (SND_SOC_ALL_CODECS) selects SND_SOC_ES8323_PCM which has unmet direct dependencies (SOUND && !M68K && SND && SND_SOC && SND_RK29_SOC)
*
* Restart config...
*
*
* GPIO Support
*
GPIO Support (GPIOLIB) [Y/n/?] y
  Debug GPIO calls (DEBUG_GPIO) [N/y/?] n
  /sys/class/gpio/... (sysfs interface) (GPIO_SYSFS) [Y/n/?] y
  *
  * Memory mapped GPIO drivers:
  *
  Basic memory-mapped GPIO controllers support (GPIO_BASIC_MMIO) [N/m/y/?] n
  IT8761E GPIO support (GPIO_IT8761E) [M/n/y/?] m
  PrimeCell PL061 GPIO support (GPIO_PL061) [N/y/?] n
  VIA VX855/VX875 GPIO (GPIO_VX855) [M/n/y/?] m
  *
  * I2C GPIO expanders:
  *
  Maxim MAX7300 GPIO expander (GPIO_MAX7300) [M/n/y/?] m
  MAX7319, MAX7320-7327 I2C Port Expanders (GPIO_MAX732X) [M/n/y/?] m
  PCA953x, PCA955x, TCA64xx, and MAX7310 I/O ports (GPIO_PCA953X) [M/n/y/?] m
  PCF857x, PCA{85,96}7x, and MAX732[89] I2C GPIO expanders (GPIO_PCF857X) [M/n/y/?] m
  Semtech SX150x I2C GPIO expander (GPIO_SX150X) [Y/n/?] y
  STMPE GPIOs (GPIO_STMPE) [Y/n/?] y
  TC3589X GPIOs (GPIO_TC3589X) [Y/n/?] y
  TI TPS65912 GPIO (GPIO_TPS65912) [M/n/y/?] m
  WM831x GPIOs (GPIO_WM831X) [M/n/y/?] m
  WM8350 GPIOs (GPIO_WM8350) [M/n/y/?] m
  WM8994 GPIOs (GPIO_WM8994) [M/n/y/?] m
  GPIO Support for ADP5520 PMIC (GPIO_ADP5520) [M/n/y/?] m
  ADP5588 I2C GPIO expander (GPIO_ADP5588) [M/n/y/?] m
  *
  * PCI GPIO expanders:
  *
  OKI SEMICONDUCTOR ML7213 IOH GPIO support (GPIO_ML_IOH) [M/n/y/?] m
  Support for timberdale GPIO IP (GPIO_TIMBERDALE) [Y/n/?] y
  RDC R-321x GPIO support (GPIO_RDC321X) [M/n/y/?] m
  *
  * SPI GPIO expanders:
  *
  Maxim MAX7301 GPIO expander (GPIO_MAX7301) [M/n/y/?] m
  Microchip MCP23Sxx I/O expander (GPIO_MCP23S08) [M/n/y/?] m
  Freescale MC33880 high-side/low-side switch (GPIO_MC33880) [M/n/y/?] m
  74x164 serial-in/parallel-out 8-bits shift register (GPIO_74X164) [M/n/y/?] m
  *
  * AC97 GPIO expanders:
  *
  Philips UCB1400 GPIO (GPIO_UCB1400) [Y/n/?] y
  GPIO EXPANDER PCA9554 (GPIO_PCA9554) [N/y/?] n
  ROCKCHIP TCA6424 CONTROL (IOEXTEND_TCA6424) [N/y/?] n
  setting the amount of expanded gpios (EXPANDED_GPIO_NUM) [] (NEW)

What does it want ?

[d33]

Steps for compilation:

1. Install all libs
2. Install arm toolchain
3. run make clean
4. run make rk3188_sdk_android-4.4-defconfig
5. run make kernel.img

Should build a generic rk3188 bootable kernel suitable for a ministick

From that point we need to alter the kernel config (.config) and source to build a tablet kernel.

[raxy]

Thanks a lot darr,
I missed that make defconfig step,
I've understood that later and while i as rebuilding from other sources
Do i find that defconfig file in arc/arm/configs ?

[d33]

FULL sources (system and kernel) for KitKat on Rockchip

Yes, but you don't need to copy it, just run the make cmd


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[raxy]

mixing

Hi,
Does it make sense if I try to mix the kernel (3.0.36 based I assume) I could build with these sources with a jellybean Riley ROM ?
I try to proceed step by step and get a kernel built by me before even going further with kitkat...

tks.

[d33]

FULL sources (system and kernel) for KitKat on Rockchip

There are 4.2.2 sources available if you want to build JB

New kernel is very different according to Finless


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[raxy]

darrellr,
my dream for now is to port CM10.x to my pipo tablet, but none of the 4.2.2 sources I've tried made me get closer to that goal, yet...

OMA should not remain the only one who tried and somewhat succeeded with a beta CM10.1 for the V88...

[fazerg]

Who can tell me please, how can I get original .config from either kernel.img or running kernel from Pipo tablet?

extract-ikconfig kernel.img says that it can't find config inside kernel.
And there is no /proc/config.gz file.

Withot this config it will be really hard to compile working kernel for tablet having only generic defconfig.