why Glibc does not build with clang?

Andreas Schwab schwab@linux-m68k.org
Sat May 24 16:17:00 GMT 2014


Rich Felker <dalias@libc.org> writes:

> On Sat, May 24, 2014 at 04:46:03PM +0200, Andreas Schwab wrote:
>> Rich Felker <dalias@libc.org> writes:
>> 
>> > Nested functions are a feature that fundamentally requires producing
>> > an insecure executable/library (executable-stack flag)
>> 
>> Only if you pass the address of it out of the containing function.
>
> That's my "_except_ in cases where the compiler optimizes out that
> need."

That's not the exception, that's the rule.  If you never take the
address of the nested function you never need a trampoline.

Andreas.

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Andreas Schwab, schwab@linux-m68k.org
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