Problems with installing Nios2 Linux

Hi,

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It's use of the rdctl register.

138:

rdctl   r5,exception

546:

rdctl r6,badaddr

The whole file is pasted at http://stackoverflow.com/questions/42778812/error-unknown-register-when-building-uclinux

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Please try to preprocess the 'entry.S' with -E switch instead of -c, like

nios2-linux-uclibc-gcc -E  -D __ASSEMBLY__ -D __KERNEL__ -I/home/developer/altera/nios2-linux/linux-2.6/include -I/home/developer/altera/nios2-linux/linux-2.6/arch/nios2/include -I/home/developer/altera/nios2-linux/uClinux-dist/linux-2.6.x/include /home/developer/altera/nios2-linux/linux-2.6/arch/nios2/kernel/entry.S > entry.txt

and check the output file by your editor whether the code 'rdctl r5,exception' and 'rdctl r6,badaddr' are transferd invariantly. Note that with the -E switch, the compiler uses the standard output for its output.

If the preprocessing is normal, then make a test file like

// test.S
rdctl   r5,exception
rdctl r6,badaddr

and compile it.

nios2-linux-uclibc-gcc -c test.S

Does it genarate errors?

Kazu