Sorry to not reply earlier, I was on holiday in the last two weeks. If you do not see any output from the serial, ensure your are using the appropriate 'SerialPortLib'. Check in your DSC file, there is no 'SerialPortLib' pointing to 'MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf'. Example:
[LibraryClasses.common] (...) SerialPortLib|MdePkg/Library/BaseSerialPortLibNull/BaseSerialPortLibNull.inf (...) SerialPortLib should use the implementation for your Serial controller. Try also to add some SerialPortWrite() before calling GetSectionFromAnyFv(). I would not be surprised if the crash happens much earlier than the DXE phase. > -----Original Message----- > From: Bhupesh Sharma [mailto:bhupesh.sha...@freescale.com] > Sent: 20 November 2013 11:50 > To: 'Andrew Fish'; 'edk2-devel@lists.sourceforge.net'; Olivier Martin > Cc: Prabhakar Kushwaha > Subject: RE: SerialPrint not working in DxeServicesLib.c > > I don't know why but I didn't get any mail from the mail list server > for my original mail below, > though I can see same in the mail list archives. > > Adding Andrew.. > > Can you guys please help me with the issue mentioned below. > > Regards, > Bhupesh > > > -----Original Message----- > > From: Sharma Bhupesh-B45370 > > Sent: Tuesday, November 19, 2013 4:25 PM > > To: 'edk2-devel@lists.sourceforge.net'; 'Olivier Martin' > > Cc: 'boot-architect...@lists.linaro.org'; Kushwaha Prabhakar-B32579 > > Subject: SerialPrint not working in DxeServicesLib.c > > > > Hi List, > > > > I am experiencing a Data Abort inside function 'GetSectionFromAnyFv' > in > > file 'DxeServicesLib.c' > > on my ARMv7 UEFI platform. > > > > To debug the same I added some print messages like: > > > > /* Added for debugging */ > > CHAR8 Buffer1[100]; > > UINTN CharCount; > > CharCount = AsciiSPrint (Buffer1,sizeof (Buffer1),"Inside > Func\n\r"); > > SerialPortWrite ((UINT8 *) Buffer1, CharCount); > > > > > > And also something like: > > SerialPrint ("Inside Func\n\r"); > > > > I have included: > > #include <Library/PrintLib.h> > > #include <Library/SerialPortLib.h> > > > > and defined: > > > > #define SerialPrint(txt) SerialPortWrite ((UINT8*)(txt), > > AsciiStrLen(txt)+1); > > > > I still cannot see any debug prints on the UART (placed right after > the > > entry point of 'GetSectionFromAnyFv' function). > > Debugger (DS-5) suggests that the crash is inside > 'GetSectionFromAnyFv' > > itself. > > > > I get the UEFI firmware <version xx built at xx on xx) and Data Abort > > Exception PC at xx prints on the console, but no prints from > > 'DxeServicesLib.c' > > > > Any pointers to what I may be missing here. > > > > Regards, > > Bhupesh > > ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ edk2-devel mailing list edk2-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/edk2-devel
