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| -rw-r--r-- | README.markdown | 18 |
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diff --git a/README.markdown b/README.markdown index 47f27b86..a08886d8 100644 --- a/README.markdown +++ b/README.markdown @@ -67,6 +67,24 @@ You can also tell the GUI to go directly to a specific call qapitrace application.trace 12345 +Backtrace Capturing +=================== + +apitrace now has the ability to capture the call stack to an OpenGL call. +This can be helpful in determing which piece of code made that glDrawArrays call. + +*NOTE* this feature is currently only available on Android and Linux at the moment. + +On linux you need to have libunwind, and libdwarf installed to compile in the feature. + +To use the feature you need to set an environment variable with the list of GL +call prefixes you wish to capture stack traces to. + + export APITRACE_BACKTRACE="glDraw* glUniform*" + +The backtrace data will show up in qapitrace in the bottom section as a new tab. + + Advanced command line usage =========================== |