On Mon, 2006-06-12 at 23:54 +0200, Martin Guy wrote: > > It will use mov pc, lr. > > > > There are at least three places that need fixing: > > - Function returns > > - Indirect calls > > - Assembly code in libgcc. > > > > glibc would also need auditing for problematic assembly code. > > Is there any reason not to make ldm the default for armv4 and above, > since it seems to win most, among the various options?
Two reasons: because it requires the return address to be on the stack (which often requires adding another instruction to get it there), and because LDM is quite a slow instruction on Intel CPUs. That said, in the specific case of Debian it's possible that these disadvantages are outweighed by the compatibility benefits. p. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
