GCC extension for protecting applications from format string attacks

Zack Weinberg zackw@Stanford.EDU
Thu Apr 5 12:57:00 GMT 2001


On Thu, Apr 05, 2001 at 12:34:47PM -0700, Richard Henderson wrote:
> On Thu, Apr 05, 2001 at 11:51:03AM -0700, Zack Weinberg wrote:
> > To the best of my knowledge, all ABIs supported by GCC have
> > at least one call-clobbered register which is not used to pass
> > arguments.
> 
> ARM has only 4 call clobbered registers and uses all of them
> in parameter passing.  This presents nasty problems for the
> static chain register, for instance.

Aaargh.

zw



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