Compiling the Linux 3.3.7 Kernel

RSchubert · Dec 4th 2012

there's some strange behaviour when compiling the kernel:

Code

export ARCH=arm
make fss5pv210_defconfig

When I now run the following script the compiling progress starts directly.

Code

export PATH=$PATH:/home/home/Dev/picomod7a/toolchain/bin
export CROSS_COMPILE=arm-fs-linux-gnueabi-
export ARCH=arm
make

After I try to change the configuration (for now only the display resolution from 800x480 to 1024x768) with "make menuconfig" and then run the makekernel script it seems the kernel config is lost or faulty because make is "Restarting config...". I'm beeing asked for all configuration parameters on the command line (about 100 questions).

Code

/home/home/Dev/picomod7a/toolchain/bin/arm-fs-linux-gnueabi-gcc
scripts/kconfig/conf --silentoldconfig Kconfig
*
* Restart config...
*
*
* Linux/arm 3.3.7 Kernel Configuration
*
Patch physical to virtual translations at runtime (ARM_PATCH_PHYS_VIRT) [Y/n/?] (NEW)
*
* System Type
*
MMU-based Paged Memory Management Support (MMU) [Y/n/?] y
ARM system type
1. ARM Ltd. Integrator family (ARCH_INTEGRATOR) (NEW)
2. ARM Ltd. RealView family (ARCH_REALVIEW) (NEW)
> 3. ARM Ltd. Versatile family (ARCH_VERSATILE) (NEW)
4. ARM Ltd. Versatile Express family (ARCH_VEXPRESS) (NEW)
5. Atmel AT91 (ARCH_AT91) (NEW)
6. Broadcom BCMRING (ARCH_BCMRING) (NEW)
7. Calxeda Highbank-based (ARCH_HIGHBANK) (NEW)
8. Cirrus Logic CLPS711x/EP721x-based (ARCH_CLPS711X) (NEW)
9. Cavium Networks CNS3XXX family (ARCH_CNS3XXX) (NEW)
10. Cortina Systems Gemini (ARCH_GEMINI) (NEW)
11. CSR SiRFSoC PRIMA2 ARM Cortex A9 Platform (ARCH_PRIMA2) (NEW)
12. EBSA-110 (ARCH_EBSA110) (NEW)
13. EP93xx-based (ARCH_EP93XX) (NEW)
14. FootBridge (ARCH_FOOTBRIDGE) (NEW)
15. Freescale MXC/iMX-based (ARCH_MXC) (NEW)
16. Freescale MXS-based (ARCH_MXS) (NEW)
17. Hilscher NetX based (ARCH_NETX) (NEW)
18. Hynix HMS720x-based (ARCH_H720X) (NEW)
19. IOP13xx-based (ARCH_IOP13XX) (NEW)
20. IOP32x-based (ARCH_IOP32X) (NEW)
21. IOP33x-based (ARCH_IOP33X) (NEW)
22. IXP23XX-based (ARCH_IXP23XX) (NEW)
23. IXP2400/2800-based (ARCH_IXP2000) (NEW)
24. IXP4xx-based (ARCH_IXP4XX) (NEW)
25. Marvell Dove (ARCH_DOVE) (NEW)
26. Marvell Kirkwood (ARCH_KIRKWOOD) (NEW)
27. NXP LPC32XX (ARCH_LPC32XX) (NEW)
28. Marvell MV78xx0 (ARCH_MV78XX0) (NEW)
29. Marvell Orion (ARCH_ORION5X) (NEW)
30. Marvell PXA168/910/MMP2 (ARCH_MMP) (NEW)
31. Micrel/Kendin KS8695 (ARCH_KS8695) (NEW)
32. Nuvoton W90X900 CPU (ARCH_W90X900) (NEW)
33. NVIDIA Tegra (ARCH_TEGRA) (NEW)
34. Picochip picoXcell (ARCH_PICOXCELL) (NEW)
35. Philips Nexperia PNX4008 Mobile (ARCH_PNX4008) (NEW)
36. PXA2xx/PXA3xx-based (ARCH_PXA) (NEW)
37. Qualcomm MSM (ARCH_MSM) (NEW)
38. Renesas SH-Mobile / R-Mobile (ARCH_SHMOBILE) (NEW)
39. RiscPC (ARCH_RPC) (NEW)
40. SA1100-based (ARCH_SA1100) (NEW)
41. Samsung S3C2410, S3C2412, S3C2413, S3C2416, S3C2440, S3C2442, S3C2443, S3C2450 (ARCH_S3C2410) (NEW)
42. Samsung S3C64XX (ARCH_S3C64XX) (NEW)
43. Samsung S5P6440 S5P6450 (ARCH_S5P64X0) (NEW)
44. Samsung S5PC100 (ARCH_S5PC100) (NEW)
45. Samsung S5PV210/S5PC110 (ARCH_S5PV210) (NEW)
46. SAMSUNG EXYNOS (ARCH_EXYNOS) (NEW)
47. Shark (ARCH_SHARK) (NEW)
48. ST-Ericsson U300 Series (ARCH_U300) (NEW)
49. ST-Ericsson U8500 Series (ARCH_U8500) (NEW)
50. STMicroelectronics Nomadik (ARCH_NOMADIK) (NEW)
51. TI DaVinci (ARCH_DAVINCI) (NEW)
52. TI OMAP (ARCH_OMAP) (NEW)
53. ST SPEAr (PLAT_SPEAR) (NEW)
54. VIA/WonderMedia 85xx (ARCH_VT8500) (NEW)
55. Xilinx Zynq ARM Cortex A9 Platform (ARCH_ZYNQ) (NEW)
choice[1-55]:

Display More

and so on...

When I answer all question with the default value by pressing return the compiling process is breaking with errors.

configuration: PicoMOD7A, software package: multiplatform-linux-f+s-V2.0

Thanks for help.

fs-support_HK · Dec 5th 2012

The script is executed in a sub-shell. This means that after the script (and the kernel compilation) is done, your environment settings PATH, CROSS_COMPILE and ARCH are not valid anymore and 'make menuconfig' will use the standard gcc, which results in a compilation for x86. Therefore the configuration is detected to not be compatible to the current compilation run and the kernel tries to reconfigure for x86. Hence all the questions and the failing compilation.

By the way, if you install the toolchain to a different place than /usr/local/arm, then you must change some settings in BuildRoot or it won't find the toolchain.

RSchubert · Dec 5th 2012

It's working now when calling "make menuconfig" with the correct env set. Sorry my mistake.

Thanks.

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