DEBUG() macros in DXE driver: can’t make it work in QEMU

[Nikolay Bodunov <nikolay.bodunov@gmail.com>]

Hello


I compiled DXE Driver, in DEBUG_GCC49 mode, but I can’t print any debug
message.
DEBUG((-1, “Print test”))  does nothing.  Exactly as
DebugPrint(EFI_D_ERROR, “Print Test);

However, I see “Print Test” string in my *.efi binary.
I use QEMU + OMVF (OVMF was also recompliled in DEBUG_GCC49 mode, to be
sure). Serial port output is redirected to a file:
qemu-system-x86_64 -L . --bios /…/FV/OVMF.fd -hda hdd.img -serial
file:./serial_file

All I see in output file is EFI shell output messages, include one that my
driver was succesfully loaded. But no messages from DEBUG().


My conditions:

MODULE_TYPE    = DXE_DRIVER


Debug Print Library:

DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf

(BaseDebugLibNull.inf is commented, of course)


DebugPrintEnabled() returns TRUE


I also tried to set some key options manually in MdeModulePkg.dsc
afterwards, but result didn’t change:


[Components]


  MdeModulePkg/CrScreenshotDxe/CrScreenshotDxe.inf  {


    <PcdsFixedAtBuild>


gEfiMdePkgTokenSpaceGuid.gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x07

      gEfiMdePkgTokenSpaceGuid.PcdDebugPropertyMask|0x2F

      gEfiMdePkgTokenSpaceGuid.PcdDebugPrintErrorLevel|0x80000042



   <LibraryClasses>


DebugLib|MdePkg/Library/BaseDebugLibSerialPort/BaseDebugLibSerialPort.inf


   <BuildOptions>

      GCC:*_*_*_CC_FLAGS             = -UMDEPKG_NDEBUG

}


Code (I used it as a base): https://github.com/LongSoft/CrScreenshotDxe

Where I got wrong and what else could I try to make it work?

-- 
With best regards,
Nikolay Bodunov