On Monday, April 30, 2018 at 10:50:20 AM UTC-4, Luke Niwranski wrote:
>
> Hi Jeff,
>
> I followed your MSBuild steps and the test still failed for me (results
> below).
>
> Try this to specify the platform toolset:
>
> 1. Open VS2017 x64 Developer Prompt
> 2. cd to cryptopp
> 3. msbuild
> /p:Configuration=Release;Platform=x64,WindowsTargetPlatformVersion=10.0.16299.0,PlatformToolset=v141
>
> cryptlib.vcxproj
> 4. msbuild
> /p:Configuration=Release;Platform=x64,WindowsTargetPlatformVersion=10.0.16299.0,PlatformToolset=v141
>
> cryptest.vcxproj
> 5. msbuild
> /p:Configuration=Release;Platform=x64,WindowsTargetPlatformVersion=10.0.16299.0,PlatformToolset=v141
>
> /t:CopyCryptestToRoot cryptest.vcxproj
>
> Note: depending on the Visual Studio updates, you may need to change your
> WindowsTargetPlatformVersion to whichever version is available. I don't
> think this has any affect on how Crypt++ is built.
>
> Daniele, thanks for confirming this. It's great to know I'm not the only
> one experiencing this problem!
>
> I'm assuming the failure will be triggered on all machines running the
> library, not just the machine used to build the solution, correct? As
> such, is this a problem that can be fixed? Or is the solution to simply to
> disable optimization and/or upgrade the older hardware?
>
OK, I can duplicate it using your msbuild commands and this patch:
$ git diff cpu.cpp
diff --git a/cpu.cpp b/cpu.cpp
index ef0ddf69..c5bc3601 100644
--- a/cpu.cpp
+++ b/cpu.cpp
@@ -242,7 +242,7 @@ void DetectX86Features()
g_hasSSSE3 = g_hasSSE2 && ((cpuid1[2] & (1<< 9)) != 0);
g_hasSSE41 = g_hasSSE2 && ((cpuid1[2] & (1<<19)) != 0);
g_hasSSE42 = g_hasSSE2 && ((cpuid1[2] & (1<<20)) != 0);
- g_hasAESNI = g_hasSSE2 && ((cpuid1[2] & (1<<25)) != 0);
+ //g_hasAESNI = g_hasSSE2 && ((cpuid1[2] & (1<<25)) != 0);^M
g_hasCLMUL = g_hasSSE2 && ((cpuid1[2] & (1<< 1)) != 0);
if (IsIntel(cpuid0))
I'll need to look at it in detail to see where things are going sideways.
Jeff
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