Maciej Purski issues

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                                            Maciej Purski

armv7m: Signals don't work.

Function `hal_cpuPushSignal` is not implemented on this architecture. I tried to use signals on imxrt1064 CPU. https://github.com/phoenix-rtos/phoenix-rtos-kernel/blob/f84dea0c56a9743e9b9825911aff836a8b4f3c81/hal/armv7m/cpu.h#L333

busybox/armv7a9-zynq7000-qemu: Some tests are not successfull

There are two tests from busybox test suite, which succeed on `ia32` but fail on `armv7a9-zynq7000-qemu`: ``` FAIL: cp-copies-large-file + dd if=/dev/zero of=foo seek=10k count=1 + busybox cp foo bar...

fork: Abort exception after fork() failed

On imx6ull in `'/bin/sh` process, there's an Abort thrown after syscall `fork()` failed with `ENOMEM` return code. The Abort is thrown, during `push` instruction in the `set_errno()` function preamble. The...