[Xen-changelog] [xen stable-4.2] x86: explicit suffix in inline assembler (for clang).

[patchbot@xxxxxxx]

commit fb7d38de1f6744092011ae169b12f5e31ba6a745
Author:     Tim Deegan <tim@xxxxxxx>
AuthorDate: Fri Aug 16 12:07:40 2013 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Aug 16 12:07:40 2013 +0200

    x86: explicit suffix in inline assembler (for clang).
    
    This fixes the clang build, and has no effect on gcc's output.
    
    Signed-off-by: Tim Deegan <tim@xxxxxxx>
    Committed-by: Jan Beulich <jbeulich@xxxxxxxx>
    
    master commit: 59a28b5f045331641cbf0c1fc8d5d67afe328939
    master date: 2013-02-14 14:20:06 +0100
    
    Note that this isn't just a build fix - if the "delta" input in the
    64-bit variant ends up in memory, gas would default to 32-bit operand
    size (and should really warn about the ambiguity).
    
    32-bit portion contributed by NetBSD folks.
---
 xen/arch/x86/time.c |    6 +++---
 1 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/arch/x86/time.c b/xen/arch/x86/time.c
index 7d29cd8..9187520 100644
--- a/xen/arch/x86/time.c
+++ b/xen/arch/x86/time.c
@@ -131,10 +131,10 @@ static inline u64 scale_delta(u64 delta, struct 
time_scale *scale)
 
 #ifdef CONFIG_X86_32
     asm (
-        "mul  %5       ; "
+        "mull  %5       ; "
         "mov  %4,%%eax ; "
         "mov  %%edx,%4 ; "
-        "mul  %5       ; "
+        "mull  %5       ; "
         "xor  %5,%5    ; "
         "add  %4,%%eax ; "
         "adc  %5,%%edx ; "
@@ -142,7 +142,7 @@ static inline u64 scale_delta(u64 delta, struct time_scale 
*scale)
         : "a" ((u32)delta), "1" ((u32)(delta >> 32)), "2" (scale->mul_frac) );
 #else
     asm (
-        "mul %2 ; shrd $32,%1,%0"
+        "mulq %2 ; shrd $32,%1,%0"
         : "=a" (product), "=d" (delta)
         : "rm" (delta), "0" ((u64)scale->mul_frac) );
 #endif
--
generated by git-patchbot for /home/xen/git/xen.git#stable-4.2

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