Hi Dmitry,
On 5/26/2021 2:01 PM, Dmitry Kozlyuk wrote:
WPP tracing [1] allows kernel drivers to print logs that can be viewed
without attaching a debugger to the running system. Traces are colelcted
only when enabled. Instrument virt2phys with traces:
* ERROR: failures that prevent the driver from working.
* WARNING: incorrect calls to the driver.
* INFO: starting or completing operations with memory.
[1]:
https://docs.microsoft.com/en-us/windows-hardware/drivers/devtest/wpp-software-tracing
Signed-off-by: Dmitry Kozlyuk <dmitry.kozl...@gmail.com>
---
<snip!>
diff --git a/windows/virt2phys/virt2phys.vcxproj
b/windows/virt2phys/virt2phys.vcxproj
index b462493..c9f884a 100644
--- a/windows/virt2phys/virt2phys.vcxproj
+++ b/windows/virt2phys/virt2phys.vcxproj
@@ -41,6 +41,7 @@
<ItemGroup>
<ClInclude Include="virt2phys.h" />
<ClInclude Include="virt2phys_logic.h" />
+ <ClInclude Include="virt2phys_trace.h" />
</ItemGroup>
<ItemGroup>
<Inf Include="virt2phys.inf" />
@@ -169,9 +170,9 @@
</ItemDefinitionGroup>
<ItemDefinitionGroup
Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
<ClCompile>
- <WppEnabled>false</WppEnabled>
+ <WppEnabled>true</WppEnabled>
<WppRecorderEnabled>true</WppRecorderEnabled>
- <WppScanConfigurationData Condition="'%(ClCompile.ScanConfigurationData)' ==
''">trace.h</WppScanConfigurationData>
+ <WppScanConfigurationData Condition="'%(ClCompile.ScanConfigurationData)' ==
''">virt2phys_trace.h</WppScanConfigurationData>
This change is also required for the 'Release|x64' configuration,
otherwise 'Release' builds fail.
<snip!>
Also, it appears the newer version of the compiler (combined with the
new version of WDK/SDK), requires that the driver signing process
mandate a File Digest Algorithm (using the /fd option). It is a warning
today, but they claim it could become a requirement in the future.
To fix this, we can include the following in the project file:
<DriverSign>
<FileDigestAlgorithm>SHA256</FileDigestAlgorithm>
</DriverSign>
Or set the above, using project 'Properties'->Driver Signing->File
Digest Algorithm = 256.
(This will need to be fixed in the netuio driver project also)
thanks,
ranjit m.
