[PATCH] x86: AMD's rdtscp
Jan Beulich
JBeulich@novell.com
Tue Mar 15 08:34:00 GMT 2005
Built and tested on i686-pc-linux-gnu.
Jan
include/opcode/
2005-03-15 Jan Beulich <jbeulich@novell.com>
* i386.h (i386_optab): Add rdtscp.
opcodes/
2005-03-15 Jan Beulich <jbeulich@novell.com>
* i386-dis.c (INVLPG_Fixup): Decode rdtscp; change code to allow
for
easier future additions.
---
/home/jbeulich/src/binutils/mainline/2005-03-14/include/opcode/i386.h 2005-03-04
15:52:17.000000000 +0100
+++ 2005-03-14/include/opcode/i386.h 2005-03-15 09:10:42.089520712
+0100
@@ -1369,6 +1369,7 @@ static const template i386_optab[] =
{"syscall", 0, 0x0f05, X, CpuK6, NoSuf, { 0, 0,
0} },
{"sysret", 0, 0x0f07, X, CpuK6, lq_Suf|DefaultSize, { 0, 0,
0} },
{"swapgs", 0, 0x0f01, 0xf8, Cpu64, NoSuf|ImmExt, { 0, 0,
0} },
+{"rdtscp", 0, 0x0f01, 0xf9, CpuSledgehammer,NoSuf|ImmExt, { 0, 0,
0} },
/* VIA PadLock extensions. */
{"xstorerng", 0, 0x000fa7c0, X, Cpu686|CpuPadLock, NoSuf|IsString, {
0, 0, 0} },
---
/home/jbeulich/src/binutils/mainline/2005-03-14/opcodes/i386-dis.c 2005-03-04
15:53:09.000000000 +0100
+++ 2005-03-14/opcodes/i386-dis.c 2005-03-15 09:06:58.155563848
+0100
@@ -4392,16 +4392,23 @@ PNI_Fixup (int extrachar ATTRIBUTE_UNUSE
static void
INVLPG_Fixup (int bytemode, int sizeflag)
{
- if (*codep == 0xf8)
- {
- char *p = obuf + strlen (obuf);
+ const char *alt;
- /* Override "invlpg". */
- strcpy (p - 6, "swapgs");
- codep++;
+ switch (*codep)
+ {
+ case 0xf8:
+ alt = "swapgs";
+ break;
+ case 0xf9:
+ alt = "rdtscp";
+ break;
+ default:
+ OP_E (bytemode, sizeflag);
+ return;
}
- else
- OP_E (bytemode, sizeflag);
+ /* Override "invlpg". */
+ strcpy (obuf + strlen (obuf) - 6, alt);
+ codep++;
}
static void
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