[git] GCRYPT - branch, master, updated. libgcrypt-1.6.0-215-gbac42c6

[by Jussi Kivilinna]

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The branch, master has been updated
       via  bac42c68b069f17abcca810a21439c7233815747 (commit)
       via  e15beb584a5ebdfc363e1ff15f87102508652d71 (commit)
      from  5a7d55eed3316f40ca61acbee032bfc285e28803 (commit)

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- Log -----------------------------------------------------------------
commit bac42c68b069f17abcca810a21439c7233815747
Author: Jussi Kivilinna <jussi.kivilinna at iki.fi>
Date:   Fri May 8 18:07:51 2015 +0300

    hwf-x86: use edi for passing value to ebx for i386 cpuid
    
    * src/hwf-x86.c [__i386__] (get_cpuid): Use '=D' for regs[1] instead
    of '=r'.
    --
    
    On Win32, %ebx can be assigned for '=r' (regs[1]). This results invalid
    assembly:
    	pushl %ebx
    	movl %ebx, %ebx
    	cpuid
    	movl %ebx, %ebx
    	popl %ebx
    
    So use '=D' (%esi) for regs[1] instead.
    
    Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>

diff --git a/src/hwf-x86.c b/src/hwf-x86.c
index baef2df..399952c 100644
--- a/src/hwf-x86.c
+++ b/src/hwf-x86.c
@@ -81,7 +81,7 @@ get_cpuid(unsigned int in, unsigned int *eax, unsigned int *ebx,
      "cpuid\n\t"
      "movl %%ebx, %1\n\t"
      "popl %%ebx\n\t"            /* Restore GOT register. */
-     : "=a" (regs[0]), "=r" (regs[1]), "=c" (regs[2]), "=d" (regs[3])
+     : "=a" (regs[0]), "=D" (regs[1]), "=c" (regs[2]), "=d" (regs[3])
      : "0" (in), "1" (0), "2" (0), "3" (0)
      : "cc"
      );

commit e15beb584a5ebdfc363e1ff15f87102508652d71
Author: Jussi Kivilinna <jussi.kivilinna at iki.fi>
Date:   Mon May 4 20:09:51 2015 +0300

    hwf-x86: add EDX as output register for xgetbv asm block
    
    * src/hwf-x86.c (get_xgetbv): Add EDX as output.
    --
    
    XGETBV instruction modifies EAX:EDX register pair, so we need to mark
    EDX as output to let compiler know that contents in this register are
    lost.
    
    Signed-off-by: Jussi Kivilinna <jussi.kivilinna at iki.fi>

diff --git a/src/hwf-x86.c b/src/hwf-x86.c
index 7ee246d..baef2df 100644
--- a/src/hwf-x86.c
+++ b/src/hwf-x86.c
@@ -100,11 +100,11 @@ get_cpuid(unsigned int in, unsigned int *eax, unsigned int *ebx,
 static unsigned int
 get_xgetbv(void)
 {
-  unsigned int t_eax;
+  unsigned int t_eax, t_edx;
 
   asm volatile
     ("xgetbv\n\t"
-     : "=a" (t_eax)
+     : "=a" (t_eax), "=d" (t_edx)
      : "c" (0)
     );
 
@@ -151,11 +151,11 @@ get_cpuid(unsigned int in, unsigned int *eax, unsigned int *ebx,
 static unsigned int
 get_xgetbv(void)
 {
-  unsigned int t_eax;
+  unsigned int t_eax, t_edx;
 
   asm volatile
     ("xgetbv\n\t"
-     : "=a" (t_eax)
+     : "=a" (t_eax), "=d" (t_edx)
      : "c" (0)
     );
 

-----------------------------------------------------------------------

Summary of changes:
 src/hwf-x86.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)


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