Where should I look for the format of Plan 9 objects as created by the
compiler(s) and ready for linking? I'm hoping there is a place other
than the compiler sources that documents this intermediate format,
which I presume is not totally unlike a.out.
Also, while I'm asking, there must be more
.[8kvq965] ... files are unrelated to a.out.
as ken thompson's paper says
The object files are binary forms of assembly language,
similar to what might be passed between
the first and second passes of an assembler.
they contain target-dependent code but not precise
one nice thing about the scheme is that in the compiler suite
only the loader knows or needs to know
the bit patterns and peculiar properties of the actual machine.
Thank you for reminding me, I thought I'd seen the details somewhere.
Now to actually absorb them, given that if I were to read
It would be a shame (but no disaster) if Binutil's nm and other
tools could not at least display native Plan 9 intermediate files. I
need to know or decide how far to take this exercise.
why would that be advantagous on plan 9? if you teach
gcc to output, e.g., 8.out, then what is gained by
Now to actually absorb them, given that if I were to read your
comments literally, I'd assume that the intermediate code would be
machine independent.
not if you're reading my comments literally. i'd already observed
that they contain target-dependent code but not precise machine instructions,
On Tue, 2009-01-06 at 15:09 -0500, erik quanstrom wrote:
It would be a shame (but no disaster) if Binutil's nm and other
tools could not at least display native Plan 9 intermediate files. I
need to know or decide how far to take this exercise.
why would that be advantagous on plan 9?
On Tue, 2009-01-06 at 15:09 -0500, erik quanstrom wrote:
It would be a shame (but no disaster) if Binutil's nm and other
tools could not at least display native Plan 9 intermediate files. I
need to know or decide how far to take this exercise.
why would that be advantagous on plan 9?
On Tue, 2009-01-06 at 17:54 -0500, erik quanstrom wrote:
On Tue, 2009-01-06 at 15:09 -0500, erik quanstrom wrote:
It would be a shame (but no disaster) if Binutil's nm and other
tools could not at least display native Plan 9 intermediate files. I
need to know or decide how far to take
Not *on* Plan9, but *for* Plan9: think cross-environment.
I thought about that, but dismissed it because Plan 9 objects exist
only in a Plan 9 environment in the scenario Erik envisages. But,
funny enough, I am currently using NetBSD as my GCC platform, so your
point is not entirely irrelevant.
Well, that's what I meant: binutils on Linux (or any other UNIX
for that matter) understood Plan9's *.out files you can set up
a cross-environment *on Linux* and deploy on Plan9. I'm not sure
its a killer application, but its a use case.
It's also a necessity in order to bootstrap the GCC
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