add cfi instructions to repair this test on amd64 and arm64.
ok kettenis@

Cope with xonly on amd64 by moving the testfly routine to the rodata
section.

Due to xonly on arm64 it is no longer possible to read the testfly routine.
Put it in the rodata section allowing it to be copied. Note that testfly is
never executed directly but only after placing

Due to xonly on arm64 it is no longer possible to read the testfly routine.
Put it in the rodata section allowing it to be copied. Note that testfly is
never executed directly but only after placing it in a separate chunk of memory
allowing its permissions to be mutated.

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use __riscv instead of __riscv64

add riscv asm for these two security-feature checking regress tests
with drahn

Make this build on powerpc/powerpc64. Only test on powerpc64 for now
since this is expected to fail on most 32-bit PowerPC CPUs given the
lack of a proper permission bit.

Let the test build on mips64.

OK guenther@

Instead of skipping the text mmap test, do a non fixed mmap in this
case. This gives us another test case. Make error messages more
verbose. Fix white spaces.

Make this work on arm64.

ENTRY() requires END()

On sparc64 we need "retl" not "ret" to do an immediate return.

ok deraadt@, tedu@

Add support for arm and enable on armv7.

Do not include MD assembly code in a sys regress test. Untested on alpha,
however it has a much better chance of compiling than it did previously.