Anyway to get compile flags from objects?

Anyway to get compile flags from objects?

[nbecker]

Are compilation flags recorded in obj files?  Any way to get the info?
If not, it seems to me to be a useful feature.

Re: Anyway to get compile flags from objects?

[Christoph Maurer]

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Am Mon, 17 Sep 2001, schrieb nbecker@fred.net:

> Are compilation flags recorded in obj files?  Any way to get the info?
> If not, it seems to me to be a useful feature.


I tried a few days ago ans found the following solution:
(probably not the most beatuiful way, but it worked for me)

Compile with -S and -fverbose-asm. You'll find the Compiler-Flags in
the resulting assembler code as a comment.

Christoph

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Re: Anyway to get compile flags from objects?

[Phil Edwards]

On Mon, Sep 17, 2001 at 09:33:00AM -0400, nbecker@fred.net wrote:
> Are compilation flags recorded in obj files?  Any way to get the info?
> If not, it seems to me to be a useful feature.

There's a feature request, PR 2678, for this.  I worked up an initial patch
but nobody was interested in reviewing it.  It seems to be of somewhat
marginal usefulness without an accompanying tool to extract the flags
from the object file, and the libbfd documentation is hellishly outdated.
So I stopped.

You might follow 2678; if anybody works further on it, there should probably
be traffic under that PR.

Phil

-- 
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Re: Anyway to get compile flags from objects?

[dewar]

In GNAT, we record compilation arguments in the ALI file (which is logically,
though not physically, part of the object file). The ada make utility
(gnatmake) has an option to consider a change of compiler options as reason
to recompile.