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authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-17 20:18:11 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-17 20:18:11 -0700
commitb46522394dde7341a5253658096f354b65cbd90d (patch)
treec8631b9d3c07b4fd60f27e1c89863e89247d0eb7 /include
parentb42895d6fe66995ab101c15d9a59c78474dbf382 (diff)
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Revert "[PATCH] x86: Drop cc-options call for all options supported in gcc 3.2+"
This reverts commit c8fdd247255a3a027cd9f66dcf93e6847d1d2f85. It turns out the kernel was correct, and the gcc complaint was a gcc bug. The preferred stack boundary is expressed not in bytes, but in the the log2() of the preferred boundary, so "-mpreferred-stack-boundary=2" is in fact exactly what we want, but a gcc that is compiled for x86-64 will consider it an error (because the 64-bit calling sequence says that the stack should be 16-byte aligned) even if we are then using "-m32" to generate 32-bit code. Noted-by: Mikulas Patocka <mikulas@artax.karlin.mff.cuni.cz> Cc: Jan Hubicka <jh@suse.cz> Acked-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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