ArmPkg Ds5

Jordan Justen edited this page Nov 10, 2014 · 2 revisions

Set up ARM DS-5 for UEFI development

This tutorial uses DS5 v5.12.
Even if this tutorial is based on Linux; it should also work on Windows (after converting the file paths).

1. Start DS-5.

Note: This tutorial assumes DS-5 has been configured to debug your target (hardware or RTSM model).
Help can be found here to add your RTSM model to DS-5 if not already done: http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0446i/CIHECHJE.html

2. Import the Tianocore project from the Sourceforge repository

Note: To install the Eclipse Git plugin in DS-5, see: http://www.eclipse.org/egit/
Before installing the git (or svn) plugin, check your Eclipse version (Help > About Eclipse Platform). Example, Eclipse 3.7 = Indigo
The list of plugins for this Eclipse Platform version is available at http://download.eclipse.org/releases/indigo

  - File > Import ...
  - Git > Projects from GIT

The Sourceforge git repository (mirror of svn) is git://tianocore.git.sourceforge.net/gitroot/tianocore/edk2. The main branch is the 'master' branch; it is not required to import the other branches. center

3. After the GIT repository has been imported, select 'Use the New Project wizard' from the window 'Select a wizard to use for importing projects'. center

And choose 'Makefile Project with Existing Code' in 'C/C++ project' center

4. It is safer to create a development branch to separate your development from the public repository. center

5. Build the UEFI firmware for your platform. Example for the ARM RTSM Versatile Express Cortex A9x4, defined by the DSC file: ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc

  - Project > Properties

center

  • Change the default 'make' Build command to use the Tianocore Makefile:
make -f ArmPlatformPkg/Scripts/Makefile
center
  • Add the Environment Variables:
  - EDK2_DSC=ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc

center

  • The supported environment variables are:
  EDK2_ARCH=ARM|IA32|X64|... (default: ARM)
  EDK2_TOOLCHAIN=RVCTLINUX|ARMLINUXGCC|ARMGCC|... (default: RVCTLINUX)
  EDK2_BUILD=DEBUG|RELEASE (default: DEBUG)
  EDK2_MACROS=...

center

Note: On Windows, it is required to add the locations of nmake and the prebuilt binaries of the Tianocore BaseTools to the PATH environment variable.
You can add a similar PATH to your project environment variables in addition to the environment variables above:

  PATH=C:\Program Files\Microsoft Visual Studio 9.0\VC\bin; C:\git\edk2\BaseTools\Bin\Win32;${Path}

6. Build your project

  - Project > Build All

center

7. Switch to the DS-5 Perspective

8. Create a new Debug Configuration center

Prior to DS-5 v5.11, you need to edit the model configuration file in the DS-5 Configuration Database:

sudo vim /usr/local/DS-5/sw/debugger/configdb/Boards/ARM/RTSM_VE_Cortex_A9x4/a9_bare_metal.xml

Add the model parameter to the entry :

-C motherboard.flashloader0.fname="[YOUR_WORKSPACE_FULLPATH]/edk2/Build/ArmVExpress-RTSM-A9x4/DEBUG_RVCTLINUX/FV/RTSM_VE_CORTEX-A9_EFI.fd"

From DS-5 v5.11, these parameters can be passed through the DS-5 User Interface. center

Note:To get the list of supported parameters:

/usr/local/DS-5/bin/RTSM_VE_Cortex-A9_MPx4 -l

9. In the 'Debugger' tab, select 'Connect Only'

Note:If your development platform waits for a firmware at a specific location, you can for instance load the binary into the target binary from 'Execute debugger commands' using the following script:

interrupt
if $pc==0
restore Build/ArmVExpress-RTSM-A9x4/DEBUG_RVCTLINUX/FV/RTSM_VE_CORTEX-A9_EFI.fd binary 0x8000000
end
This development method might be useful during firmware bring up when flashing the new firmware takes a significant amount of time.

Example of using DS-5 with the ARM Fast Model:
center

Note: On Windows to have a better support of the UEFI Serial output when using the Fast Model, it is recommended to use Putty instead of the default telnet terminal.
Putty can be started at any time after the ARM Fast Model has been started. The default Fast Model telnet connection is localhost:5000.

10. To debug UEFI you can use the UEFI Python scripts for DS-5 (included in EDK2 repository):

  • Example for loading all the symbols at the current 'PC' (Program Counter Register) position with DRAM from '0x80000000' to '0x80000000+0x40000000'
 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py -m (0x80000000,0x40000000)
  • Example for loading all the symbols loaded in DRAM from '0x80000000' to '0x80000000+0x4000000'
 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py -m (0x80000000,0x40000000) -a
  • Example for loading all the symbols at the current 'PC' (Program Counter Register) position with a Firmware Volume from '0x08000000' to '0x08000000+0x00280000'. Mainly useful during the XIP phase (SEC + PEI before relocation to DRAM)
 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py -f (0x08000000,0x00280000)
  • Example for loading all the symbols for the platform with a Firmware Volume at 0x08000000 and DRAM at 0x80000000:
 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py -f (0x08000000,0x00280000) -m (0x80000000,0x40000000) -a

Note: If you build UEFI with the build report file 'report.log' in your EDK2 root directory (add '-y report.log' to your build command to generate this file) then the script will parse the report.log to get the address of the Firmware Volume and System Memory for your current platform. This convenient solution is not recommended if you work with multiple platforms. The current EDK2 BaseTools (23/10/2012) do not handle well changing the build options without cleaning the build.

 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py

To have the list of all supported arguments:

 - source edk2/ArmPlatformPkg/Scripts/Ds5/cmd_load_symbols.py -h

If you are not familiar with the platform, the way to get arguments for the script cmd_load_symbols.py is to get those information from the DSC and FDF EDK2 files of your platform.
Example: -f (0x08000000, 0x00280000) comes from the base address and size of the FD file in ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.fdf

[FD.RTSM_VE_Cortex-A9_EFI]
BaseAddress   = 0x08000000|gArmTokenSpaceGuid.PcdFdBaseAddress  # The base address of the Firmware in NOR Flash.
Size          = 0x00280000|gArmTokenSpaceGuid.PcdFdSize         # The size in bytes of the FLASH Device
ErasePolarity = 1

-m (0x80000000, 0x40000000) is the base address and size of the DRAM. This information is also available in ArmPlatformPkg/ArmVExpressPkg/ArmVExpress-RTSM-A9x4.dsc:

  # System Memory (1GB) 
  gArmTokenSpaceGuid.PcdSystemMemoryBase|0x80000000
  gArmTokenSpaceGuid.PcdSystemMemorySize|0x40000000

Note 1: DS-5 does not currently recognise '*.iii' files as ARM assembly files. It is the reason why when stopping the DS-5 debugger and calling the script 'cmd_load_symbols.py' a single function may appear in the callstack.
A workaround is to add the '*.iii' extension to the ARM assembly files:

Window > Preferences, General > Editors > File Associations
With this extension association the full callstack should be displayed.

Note 2: It is expected to see the warning messages after executing the command 'cmd_load_symbols.py':

Warning: not possible to load symbols from /home/olimar01/edk2/Build/Fat/RELEASE_RVCTLINUX/ARM/FatPkg/EnhancedFatDxe/Fat/DEBUG/Fat.dll
Warning: not possible to load symbols from /home/olimar01/edk2/Build/Fat/RELEASE_RVCTLINUX/ARM/ShellPkg/Shell/DEBUG/Shell.dll
Because the Fat and Shell binaries come as pre-built binaries.
If you want to rebuild these binaries for your platform: ArmPkg-Binaries

Note 3: DS-5 Debugger’s editor does not recognize the '*.iii' as assembly files. The workaround is to add a file association for "*.iii" to "ARM Assembler Editor" in DS-5 Eclipse: Window > Preferences, General > Editors > File Associations

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