Hi Liming,
>Kilian: can you send the patch to edk2 mail list for code review?
Regards,
Kilian
https://bugzilla.tianocore.org/show_bug.cgi?id=2319
diff --git a/EmulatorPkg/Win/Host/WinHost.c b/EmulatorPkg/Win/Host/WinHost.c
index 62a89f7617..53cda86f9a 100644
--- a/EmulatorPkg/Win/Host/WinHost.c
+++ b/EmulatorPkg/Win/Host/WinHost.c
@@ -409,7 +409,30 @@ Returns:
FirmwareVolumesStr = (CHAR16 *) PcdGetPtr (PcdEmuFirmwareVolume);
SecPrint ("\n\rEDK II WIN Host Emulation Environment from http://www.tianocore.org/edk2/\n\r");
-
+
+ if (1) {
+ int i;
+ SecPrint ("######################################################################################################\n");
+ SecPrint ("add \"/debug\" command line switch, to connect to the debugger at the very beginning of POST emulation\n");
+ SecPrint ("######################################################################################################\n");
+ if (Argc > 1) {
+ for (i = 1; i < Argc; i++) {
+ if (0 == strcmp("/debug", Argv[i])) {
+ //SecPrint("IF YOU WANT TO DEBUG from the very beginning of the EMULATION:\n\t1. start the TASKMGR\n\t2. connect WinHost.exe to the debugger\n\t3. and press ENTER in this command box\nOR\n");
+ SecPrint("\t1. start your debug engine\n");
+ SecPrint("\t2. attache to process WinHost.exe\n");
+ SecPrint("\t4. SET A SOFTWARE BREAKPOINT (F9) in line 431\n");
+ SecPrint("\t5. and press ENTER in the WinHost command box\n");
+ SecPrint("\t6. go back to the debug engine and RUN/SINGLE STEP the application\n");
+ SecPrint("\t7. otherwise press enter to continue...\n");
+
+ getchar(); //wait for keyboard input
+
+ SecPrint("");//now you can single step the entire boot/emulation process, good luck...
+ }
+ }
+ }
+ }
//
// Determine the first thread available to this process.
//
Hi Liming,
If have observed in newer Windows 10 versions, when using __debugbreak()in any
application that Windows just terminates the app, instead offering to debug it.
So in WinHost.exe too.
That’s why I usually insert the code snippet below to run into getchar()
when the program was started with the /debug command line switch.
As long as the App waits for the next keystroke, I can start the debugger (VS2019)
and connect to WinHost.exe process for debugging.
Do you have a better solution without modifying the source code?
Thanks,
Kilian
if(1){
int i;
SecPrint ("######################################################################################################\n");
SecPrint ("add \"/debug\" command line switch, to connect to the debugger at the very beginning of POST emulation\n");
SecPrint ("######################################################################################################\n");
if(Argc > 1){
for(i = 1 ; i < Argc ; i++){
if(0 == strcmp("/debug", Argv[i])){
//SecPrint("IF YOU WANT TO DEBUG from the very beginning of the EMULATION:\n\t1. start the TASKMGR\n\t2. connect WinHost.exe to the debugger\n\t3. and press ENTER in this command box\nOR\n");
SecPrint("\t1. start Visual Studio\n");
SecPrint("\t2. DEBUG->ATTACH TO PROCESS (CTRL + ALT + P) --> WinHost.exe\n");
SecPrint("\t3. Break All (CTRL + ALT + Break) --> WinHost.exe\n");
SecPrint("\t4. SET A SOFTWARE BREAKPOINT (F9) in line 445\n");
SecPrint("\t5. and press ENTER in this command box\n");
SecPrint("\t6. go back to Visual Studio an RUN/SINGLE STEP the application\n");
SecPrint("\t7. otherwise press enter to continue...\n");
getchar();
//
// 1. SET A SOFTWARE BREAKPOINT TO THE NEXT LINE of code below -->> SecPrint("");
// 2. switch to the command box and press ENTER
// 3. start single stepping the entire boot/emulation process, good luck...
//
SecPrint("");//now you can single step the entire boot/emulation process, good luck...
}
}
}
}