[Qemu-devel] [Bug 1751494] Re: tcg-target.inc.c:3495:no such instruction: `xgetbv'

[John Arbuckle]

** Summary changed:

- tag-target.inc.c:3495:no such instruction: `xgetbv'
+ tcg-target.inc.c:3495:no such instruction: `xgetbv'

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1751494

Title:
  tcg-target.inc.c:3495:no such instruction: `xgetbv'

Status in QEMU:
  New

Bug description:
  While building QEMU on Mac OS 10.6.8 I saw this error message:
  tag-target.inc.c:3495:no such instruction: `xgetbv'
  In the file tcg/i386/tcg-target.inc.c at line 3495 is where the issue is 
located. This is the problem code:
  asm ("xgetbv" : "=a" (xcrl), "=d" (xcrh) : "c" (0));

  https://github.com/asmjit/asmjit/issues/78
  According to the above link, another project also experienced this problem on 
Mac OS X. The fix was to replace the name of the instruction with the encoded 
form '.byte 0x0F, 0x01, 0xd0'. 

  Host info:
  Mac OS 10.6.8
  GCC 5.2.0

  Additional information:
  This may be a gcc issue. I have compiled QEMU on Mac OS 10.12 and didn't 
experience any issues. The compiler used was Apple's clang.

To manage notifications about this bug go to:
https://bugs.launchpad.net/qemu/+bug/1751494/+subscriptions