Messages in this thread | | | Date | Fri, 13 Jan 2017 16:36:48 +0800 | From | Herbert Xu <> | Subject | Re: x86-64: Maintain 16-byte stack alignment |
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On Thu, Jan 12, 2017 at 12:08:07PM -0800, Andy Lutomirski wrote: > > I think we have some inline functions that do asm volatile ("call > ..."), and I don't see any credible way of forcing alignment short of > generating an entirely new stack frame and aligning that. Ick. This
A straight asm call from C should always work because gcc keeps the stack aligned in the prologue.
The only problem with inline assembly is when you start pushing things onto the stack directly.
Cheers, -- Email: Herbert Xu <herbert@gondor.apana.org.au> Home Page: http://gondor.apana.org.au/~herbert/ PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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