Hey Michael, Thank you for your input! This looks interesting. Maybe it would be a good idea to provide the libraries that depend on Shell (in master) with functions that call ASSERT (FALSE); for drivers? I do not need file I/O, so I think your modifications might work out well for me. Would be very nice of course if such changes found their way upstream. :)
And thank you very much for your comment as well, Andrew! It makes sense that StdLib is primarily targeted at porting console applications to UEFI Shell. Regards, Marvin. From: Michael Zimmermann [mailto:[email protected]] Sent: Wednesday, June 22, 2016 10:28 PM To: Marvin H?user <[email protected]> Cc: [email protected] Subject: Re: [edk2] StdLib usage for drivers? In my fork of edk2 I've added support for using StdLib without the Shell. It's quite hacky(setenv/getenv are stubs, no File IO and maybe other things hidden by linker GC and me not using all features). But depending on which StdLib features you need this can work pretty good. here's the commit that does the magic: https://github.com/efidroid/edk2/commit/bf7a296718486bafaf774ea8bcf187c162c3c167 and this is how you convert a Shell project to a NonShell one: https://github.com/efidroid/uefi_apps_EFIDroidUi/commit/23f0fa08108b8f852564fae733c6a7bce62e2070 as you can see it works by using StdLib with different libraries/cflags so you have to compile your driver separately if there are other modules which need the normal StdLib. Thanks Michael On Wed, Jun 22, 2016 at 9:38 PM, Marvin H?user <[email protected]<mailto:[email protected]>> wrote: Dear EDK2 developers, For an experimental project, I'm currently attempting to write a library wrapper for the disassembler library 'Capstone' in a similar manner to CryptoPkg's OpensslLib. As most C libraries, it also depends on the standard headers, which are not provided by 'stock' EDK2. My first guess has been to use StdLib, though its description states: 'Due to the execution environment built by the StdLib component, execution as a UEFI driver can cause system stability issues.' Inspecting OpensslLib I discovered that CryptoPkg deploys its own include files for StdLib. Though, from your experience, what are the issues with using StdLibPkg with DXE/UEFI drivers? It might be nice to reduce duplicate code, though I honestly don't know anything about StdLibPkg and its implementation and would be thankful for some insight on that manner. Thank you in advance for your time! Regards, Marvin. _______________________________________________ edk2-devel mailing list [email protected]<mailto:[email protected]> https://lists.01.org/mailman/listinfo/edk2-devel _______________________________________________ edk2-devel mailing list [email protected] https://lists.01.org/mailman/listinfo/edk2-devel
