<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40"><head><meta http-equiv=Content-Type content="text/html; charset=utf-8"><meta name=Generator content="Microsoft Word 15 (filtered medium)"><style></style></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1>When running a shell app twice, I ran into an interesting problem: global variables that had initializers were not initialized to the defaults specified in the source. Running the same shell app under the old NT32 seems to work. It turns out that the shell app was not being reloaded, but rather being relaunched. I deduced this from the following behavior:<o:p></o:p><o:p> </o:p><ol style='margin-top:0in' start=1 type=1><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>The value of the global variables was the same as the last known value from the previous invocation.<o:p></o:p></li><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>The following line in WinHost.c was returning the exact same value for the DLL being loaded<o:p></o:p></li></ol>Library = LoadLibraryEx (DllFileName, NULL, DONT_RESOLVE_DLL_REFERENCES); (around line 901)<o:p></o:p><ol style='margin-top:0in' start=3 type=1><li class=MsoListParagraph style='margin-left:0in;mso-list:l0 level1 lfo1'>The corresponding code in Nt32’s PeCoffExtractionLib had the following lines in PeCoffLoaderUnloadImageExtraAction<o:p></o:p></li></ol> VOID *ModHandle;<o:p></o:p><o:p> </o:p> ASSERT (ImageContext != NULL);<o:p></o:p> ModHandle = RemoveModeHandle (ImageContext);<o:p></o:p> if (ModHandle != NULL) {<o:p></o:p> mWinNt->FreeLibrary (ModHandle);<o:p></o:p> }<o:p></o:p><o:p> </o:p>However, the same function in EmulatorPkg’s WinHost.c has:<o:p></o:p><o:p> </o:p>ASSERT (ImageContext != NULL);<o:p></o:p><o:p> </o:p>So it appears that the DLL is never being unloaded and the subsequent invocation of the shell app uses the same instance of the DLL, leaving the global variables with the previous values. There are two related functions: AddModHandle and RemoveModHandle.<o:p></o:p><o:p> </o:p>Am I missing something? Or heading in the right direction? <o:p></o:p><o:p> </o:p>Thanks,<o:p></o:p>Tim<o:p></o:p><o:p> </o:p>From: devel@edk2.groups.io <devel@edk2.groups.io> Sent: Saturday, August 17, 2019 6:30 PM To: devel@edk2.groups.io Subject: [edk2-devel] Upcoming Event: TianoCore Design Meeting - APAC/NAMO - Thu, 08/22/2019 6:30pm-7:30pm #cal-reminder<o:p></o:p><o:p> </o:p>Reminder: TianoCore Design Meeting - APAC/NAMO<o:p></o:p>When: Thursday, 22 August 2019, 6:30pm to 7:30pm, (GMT-07:00) America/Los Angeles <o:p></o:p>Where:https://zoom.us/j/969264410<o:p></o:p><a href="https://edk2.groups.io/g/devel/viewevent?eventid=470780">View Event</a><o:p></o:p>Organizer: Stephano Cetola <a href="mailto:stephano.cetola@intel.com?subject=Re:%20Event:%20TianoCore%20Design%20Meeting%20-%20APAC%2FNAMO">stephano.cetola@intel.com</a> <o:p></o:p>Description: <o:p></o:p>Join Zoom Meeting<o:p></o:p><a href="https://zoom.us/j/969264410">https://zoom.us/j/969264410</a><o:p></o:p> <o:p></o:p>One tap mobile<o:p></o:p>+16465588656,,969264410# US (New York)<o:p></o:p>+17207072699,,969264410# US<o:p></o:p> <o:p></o:p>Dial by your location<o:p></o:p> +1 646 558 8656 US (New York)<o:p></o:p> +1 720 707 2699 US<o:p></o:p>Meeting ID: 969 264 410<o:p></o:p>Find your local number: <a href="https://zoom.us/u/abOtdJckxL">https://zoom.us/u/abOtdJckxL</a><o:p></o:p><div></o:p></div></div></body></html> <div width="1" style="color:white;clear:both">_._,_._,_</div> <hr> Groups.io Links: You receive all messages sent to this group. <a target="_blank" href="https://edk2.groups.io/g/devel/message/46177">View/Reply Online (#46177)</a> | | <a target="_blank" href="https://groups.io/mt/32983160/1813853">Mute This Topic</a> | <a href="https://edk2.groups.io/g/devel/post">New Topic</a> <a href="https://edk2.groups.io/g/devel/editsub/1813853">Your Subscription</a> | <a href="mailto:devel+owner@edk2.groups.io">Contact Group Owner</a> | <a href="https://edk2.groups.io/g/devel/unsub">Unsubscribe</a> [edk2-devel-archive@redhat.com] <div width="1" style="color:white;clear:both">_._,_._,_</div>