Eric W. Biederman wrote:
Jeremy Fitzhardinge <[email protected]> writes:
Ian Campbell wrote:
OK, seems reasonable. Eric Biederman solved this by having NOTE/ENDNOTE (or
something like that) in his "bzImage with ELF header" patch, but I don't
remember it being used in any way which is incompatible with using a CPP
macro.
I can't find that patch, does NOTE/ENDNOTE just do the push/pop .note
section?
That would solve the problem with the first argument of the macro being
a string but the final argument could still be for .asciz note contents.
I remember now why I decided to use the assembler macro rather than
cpp. The macro names the section after the note name (".note.NAME"),
and it needs to be quoted so that the name can have spaces and other
characters which would otherwise upset the assembler. I couldn't work
out a clean way to do this with the C preprocessor, since "as" doesn't
support string concatenation like C does.
I don't expect it to be much more cumbersome, as two pieces, and you need the extra
alignment at the end to ensure each not entry is 4 byte aligned.
Isn't it enough that each entry start have the alignment? But you need
some kind of end marker to get the size of the desc field regardless.
Being able to
push and pop a section wouldn't hurt either.
Yes, I think having each note contain its own .pushsection/popsection is
the cleaner way of doing it.
J
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