Messages in this thread | | | From | Andy Lutomirski <> | Date | Mon, 6 Jul 2015 10:20:22 -0700 | Subject | Re: [PATCH] x86/asm/entry/64: Clean up entry_64.S |
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On Mon, Jul 6, 2015 at 8:00 AM, Sasha Levin <sasha.levin@oracle.com> wrote: > > --- entry.before.o.cmd 2015-07-06 10:48:32.110189938 -0400 > +++ entry.after.o.cmd 2015-07-06 10:48:23.509645442 -0400 > @@ -1,5 +1,5 @@ > > -entry.before.o: file format elf64-x86-64 > +entry.after.o: file format elf64-x86-64 > > > Disassembly of section .entry.text: > @@ -3961,8 +3961,8 @@ > 3b: 09 02 or %eax,(%rdx) > ... > 3d: R_X86_64_64 .entry.text > - 45: 03 3a add (%rdx),%edi > - 47: 01 3d 03 d6 00 c8 add %edi,-0x37ff29fd(%rip) # ffffffffc800d650 <ignore_sysret+0xffffffffc800b1f0> > + 45: 03 33 add (%rbx),%esi > + 47: 01 3d 03 d5 00 c8 add %edi,-0x37ff2afd(%rip) # ffffffffc800d550 <ignore_sysret+0xffffffffc800b0f0>
What exactly are you doing to generate this diff? This all looks really weird.
> 4d: 44 91 rex.R xchg %eax,%ecx > 4f: 93 xchg %eax,%ebx > 50: 2f (bad)
For example: what on earth is the asm above?
--Andy
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