On Fri, Apr 29, 2011 at 08:12:36PM +0200, André Hentschel wrote: > Am 29.04.2011 16:18, schrieb Marcus Meissner: > > On Fri, Apr 29, 2011 at 07:38:30AM -0600, Vitaliy Margolen wrote: > >> On 04/29/2011 01:31 AM, Marcus Meissner wrote: > > > > will generate without the visibility line a PLT relocation resolving call: > > > > 0000045c <f>: > > 45c: 55 push %ebp > > 45d: 89 e5 mov %esp,%ebp > > 45f: 53 push %ebx > > 460: 83 ec 04 sub $0x4,%esp > > 463: e8 ef ff ff ff call 457 <__i686.get_pc_thunk.bx> > > 468: 81 c3 8c 1b 00 00 add $0x1b8c,%ebx > > 46e: e8 15 ff ff ff call 388 <g@plt> > > 473: 83 c4 04 add $0x4,%esp > > 476: 5b pop %ebx > > 477: 5d pop %ebp > > 478: c3 ret > > > > > > but with the visibility hidden just a relative call, no relocations: > > > > 0000042c <f>: > > 42c: 55 push %ebp > > 42d: 89 e5 mov %esp,%ebp > > 42f: 83 ec 08 sub $0x8,%esp > > 432: e8 05 00 00 00 call 43c <g> > > 437: c9 leave > > 438: c3 ret > > > > 0000043c <g>: > > > > Ciao, Marcus > > > > Hi Marcus, > That's a very cool search&replace job, Wine reduces size and get's faster. > The question is how much faster? Hope we'll see some benchmarks from you :)
I do not think there will be noticable speed-up. It however has the possibility to make funny Windows code who has troubles with %ebx changes work better. Also the size of the .sos gets smaller a bit (but just in the kilobyte range). Ciao, Marcus
