Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel)

Kristian Rietveld <kris -AT- lanedo.com>
Sat, 15 Oct 2011 12:03:36 +0200

On 10/15/11 10:44 AM, Stephan Bergmann wrote:

On 10/15/2011 01:25 AM, Kristian Rietveld wrote:

Without this patch, Cpp bridgetest on a Clang-compiled UNO runtime will
not complete successfully.


Hm, but the asm code in question does not use ecx at all?!?

The asm code performs a call instruction and the called function doesnot have to preserve the contents of the ecx register, so ecx may havebeen overwritten when execution continues in this inline assembly afterreturning from the called function.



regards,

-kris.

Context

[Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Kristian Rietveld
- Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Tor Lillqvist
- Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Stephan Bergmann
  - Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Kristian Rietveld
    - Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Stephan Bergmann
      - Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Kristian Rietveld
        
        Re: [Libreoffice] [PATCH] [PUSHED] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Stephan Bergmann
- Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Caolán McNamara
- Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Stephan Bergmann
  - Re: [Libreoffice] [PATCH] Mark ecx register as clobbered (in cpp_uno/gcc3_macosx_intel) · Kristian Rietveld

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