Sami, I follow your reply style below. > -----Original Message----- > From: Sami Mujawar <sami.muja...@arm.com> > Sent: Thursday, December 12, 2019 10:33 AM > To: Vladimir Olovyannikov <vladimir.olovyanni...@broadcom.com>; Ard > Biesheuvel <ard.biesheu...@linaro.org> > Cc: devel@edk2.groups.io; nd <n...@arm.com>; Matteo Carlini > <matteo.carl...@arm.com>; Laura Moretta <laura.more...@arm.com> > Subject: RE: Debugging aarch64 edk2 built with gcc-8.x 64-bit arm compiler > > Hi Vladimir, > > Please find may response marked [SAMI] > > Regards, > > Sami Mujawar > > -----Original Message----- > From: Vladimir Olovyannikov <vladimir.olovyanni...@broadcom.com> > Sent: 12 December 2019 05:51 PM > To: Sami Mujawar <sami.muja...@arm.com>; Ard Biesheuvel > <ard.biesheu...@linaro.org> > Cc: devel@edk2.groups.io; nd <n...@arm.com> > Subject: RE: Debugging aarch64 edk2 built with gcc-8.x 64-bit arm compiler > > > -----Original Message----- > > From: Sami Mujawar <sami.muja...@arm.com> > > Sent: Thursday, December 12, 2019 8:07 AM > > To: Ard Biesheuvel <ard.biesheu...@linaro.org>; Vladimir Olovyannikov > > <vladimir.olovyanni...@broadcom.com> > > Cc: edk2-devel-groups-io <devel@edk2.groups.io>; nd <n...@arm.com> > > Subject: RE: Debugging aarch64 edk2 built with gcc-8.x 64-bit arm > > compiler > > > > Hi Vladimir, > > > > I have built the edk2 firmware using the following toolchains and find > > that the symbols are loaded correctly using DS5. > > - gcc-arm-8.3-2019.03-x86_64-aarch64-elf.tar.xz > > - gcc-arm-8.3-2019.03-x86_64-aarch64-linux-gnu.tar.xz > > The above toolchains are available at > > https://developer.arm.com/tools-and- > > software/open-source-software/developer-tools/gnu-toolchain/gnu- > > a/downloads > > > > So, it looks like the problem you mention may have something to do > > with the toolchain shipped with Yocto. > Hi Sami, > Thank you for reply. I tried with the same 8.x compilers and still have > issues > with symbols. > Building with gcc-6.3 - symbols and stacks are OK. Maybe, you have some > docs on how you load symbols, and I do it wrong? > > > [SAMI] I am using WSL (Windows subsystem for Linux) for building the > firmware and DS5 on a Windows host PC. > I am assuming you are using DS5 on a Linux host PC. I will try to recreate > this > on a Linux PC. > [/SAMI] [VLAD] Yes, I am using Linux based DS5 and build using cross compiler. [/VLAD] > > Maybe you can point me to different DS5 python scripts? > > [SAMI] I have used the DS5 'add-symbol-file' command to load the symbols. > I > copy the edk2 serial log output and run in the DS5 command window. > e.g. I run the following command in DS5 command window to load the > symbols: > add-symbol-file c:\workspace\Build\ArmVExpress-FVP- > AArch64\DEBUG_GCC5\AARCH64\ArmPkg\Drivers\ArmGic\ArmGicDxe\DEB > UG\ArmGicDxe.dll 0xFAF05000 [/SAMI] [VLAD] So, you don't use scripts to load symbols for all loaded modules? How do you know where it was loaded if you build RELEASE and don't want extra debug messages? [/VLAD] > > The present ones limit the path length to be 255 chars, and it provides > wrong > add-symbol-line (truncates > filenames) if the path length exceeds 255. > > [SAMI] I have requested our DS5 team for more information/help with this > issue. > Can you let me know the DS5 version that you are using, please? > [/SAMI] [VLAD] I have DS5 v5.22 and also tried with Arm Development Studio 201910912. Behavior is identical. Those are the python scripts inside edk2 (ArmPlatformPkg/Scripts/Ds5) which need to be adjusted? [/VLAD] > > > Thank you, > Vladimir > > > > Regards, > > > > Sami Mujawar > > > > -----Original Message----- > > From: Ard Biesheuvel <ard.biesheu...@linaro.org> > > Sent: 11 December 2019 02:51 PM > > To: Vladimir Olovyannikov <vladimir.olovyanni...@broadcom.com> > > Cc: Sami Mujawar <sami.muja...@arm.com>; edk2-devel-groups-io > > <devel@edk2.groups.io> > > Subject: Re: Debugging aarch64 edk2 built with gcc-8.x 64-bit arm > > compiler > > > > On Tue, 10 Dec 2019 at 18:25, Vladimir Olovyannikov > > <vladimir.olovyanni...@broadcom.com> wrote: > > > > > > > -----Original Message----- > > > > From: Ard Biesheuvel <ard.biesheu...@linaro.org> > > > > Sent: Tuesday, December 10, 2019 9:13 AM > > > > To: Vladimir Olovyannikov <vladimir.olovyanni...@broadcom.com>; > > Sami > > > > Mujawar <sami.muja...@arm.com> > > > > Cc: edk2-devel-groups-io <devel@edk2.groups.io> > > > > Subject: Re: Debugging aarch64 edk2 built with gcc-8.x 64-bit arm > > > > compiler > > > > > > > > On Sat, 7 Dec 2019 at 00:50, Vladimir Olovyannikov > > > > <vladimir.olovyanni...@broadcom.com> wrote: > > > > > > > > > > Hi Ard, > > > > > > > > > > > > > > > > > > > > We are about to switch to the latest Yocto. It is shipped with > > > > > gcc-8.3 > > > > aarch64-linux-gnu compiler. > > > > > > > > > > We use DS5 for bare metal debugging. > > > > > > > > > > When I build edk2 with gcc-7-x/gcc-8.x, DS5 complains on DWARF > > format. > > > > > I tried to explicitly set it to DWARF2, but still cannot even > > > > > get the stack or local variables (even though DS5 does not > > > > > complain), even for > > > > > edk2 > > > > NOOPT build. > > > > > > > > > > > > > > > > > > > > Using gcc-6.3 from Linaro, I don’t see any issue with DS5 > > > > > debugging. > > > > > > > > > > Am I missing any steps? > > > > > > > > > > Build is done with GCC5_AARCH64_PREFIX=aarch64-linux-gnu > > > > > > > > > > > > > > > > > > > > Another question: it seems that the DS5 scripts limit the path > > > > > size with > > > > > 255 > > > > chars. With a source built by Yocto, it can easily be more than > > > > that. > > > > > > > > > > Attempt to add symbols for such modules ends up with error > > > > > message in > > > > the DS5 command window that it could not add those symbols. > > > > > > > > > > Is there a procedure to increase the path length limit? > > > > > > > > > > > > > I have never in my life used a DS-5 to debug EDK2 running on bare > > > > metal, so unfortunately, I won't be able to help you. > > > > > > > How do you normally debug edk2 with DS5? Or, are you using a > > > different mechanism? > > > Debugging with DS5 was/is very convenient. > > > > > > > I do my prototyping mainly in QEMU, using GDB for debug. > Ard, should I do similar for a real specific v8 board?
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