[Webkit-unassigned] [Bug 14521] JavaScriptCore fails to build on Linux/PPC gcc 4.1.2

[bugzilla-daemon at webkit.org]

http://bugs.webkit.org/show_bug.cgi?id=14521


ddkilzer at webkit.org changed:

           What    |Removed                     |Added
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                 CC|                            |mjs at apple.com




------- Comment #7 from ddkilzer at webkit.org  2007-11-11 12:57 PDT -------
(In reply to comment #5)
> Applying this patch and recompiling a local debug build of r27683 seems to work
> on my PowerBook G4.  JavaScriptCore tests and layout tests all pass.  I don't
> know enough PPC assembly to give this an r+, though.

The gcc inline assembly constraints are documented here:

http://www.ibiblio.org/gferg/ldp/GCC-Inline-Assembly-HOWTO.html#ss6.1

Here is the difference between "=m" and "=o" (the "=" is a separate modifier):

"m" : A memory operand is allowed, with any kind of address that the machine
supports in general.

"o" : A memory operand is allowed, but only if the address is offsettable. ie,
adding a small offset to the address gives a valid address.


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