This is the mail archive of the gdb-patches@sourceware.org mailing list for the GDB project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

RE: [PATCH v4 2/3] Do not mistreat instructions as cmpxchg8b


Hello Pierre,

> +      switch (ir.reg) {
> +        case 1: /* cmpxchg8b */
> +          if (ir.mod == 3)
> +            {
> +              ir.addr -= 2;
> +              opcode = opcode << 8 | ir.modrm;
> +              goto no_support;
> +            }

We'd also need to check that neither 66 nor f3 prefixes are used.


> +        case 6: /* rdrand */
> +        case 7: /* rdseed */
> +          if (ir.mod != 3)
> +            {
> +              /* We don't handle this particular instruction yet.  */
> +              ir.addr -= 2;
> +              opcode = opcode << 8 | ir.modrm;
> +              goto no_support;
> +            }

We'd also need to check that f3 prefix is not used.


Regards,
Markus.

Intel Deutschland GmbH
Registered Address: Am Campeon 10-12, 85579 Neubiberg, Germany
Tel: +49 89 99 8853-0, www.intel.de
Managing Directors: Christin Eisenschmid, Christian Lamprechter
Chairperson of the Supervisory Board: Nicole Lau
Registered Office: Munich
Commercial Register: Amtsgericht Muenchen HRB 186928


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]