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SubjectRe: Easier way to generate stuff like asm-offsets.
Date
Kaz Kylheku <kkylheku@gmail.com> writes:

> Then we can use the ``nm'' tool (the toolchain should have binutils in it):
>
> $ /path/to/toolchain/bin/arch-prefix-nm -t d -P foo.c # decimal
> output, posix format
> offsetof_foo_member C 00000044 00000044

If those numbers are in decimal...

> There we go, 44 bytes. Simple. This is almost an #include file;
> we just have to do some simple filtering, such as:
>
> $ /path/to/toolchain/bin/arch-prefix-nm -t d -P test.o | awk '{ print
> "#define", $1, $4 }'
> #define offsetof_foo_member 00000044

...then the #define is wrong because it's interpreted as octal
there.

Cool trick!
--
Ben Pfaff
http://benpfaff.org



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