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Xcode
This page provides step-by-step instructions for setting up a EDK II build environment on macOS systems using the Xcode development tools. These steps have been verified with macOS Big Sur 11.3.1
Download the latest version of Xcode (12.5 as of 2021-05-09) from the Mac App Store. After installing Xcode, you will additionally need to install the extra command-line tools. To do this, at a Terminal prompt, enter:
$ xcode-select --install
While Xcode provides a full development environment as well as a suite of different utilities, it does not provide all tools required for TianoCore development. These tools can be provided in a number of ways, but the most popular way comes from Brew. Installation information is provided at the previous link.
The mtoc utility is required to convert from the macOS Mach-O image format to the PE/COFF format as required by the UEFI specification.
$ brew install mtoc
The assembler used for EDK II builds is Netwide Assembler (NASM). The latest version of NASM is available from https://nasm.us/.
$ brew install nasm
$ brew upgrade nasm
In order to support EDK II firmware builds, the latest version of the ASL compiler from https://acpica.org must be installed. The ASL compiler is required to build ACPI Source Language code.
$ brew install acpica
$ brew upgrade acpica
The EmulatorPkg requires headers from X11, which are provided by the XQuartz project. Install it from https://www.xquartz.org/.
On order to support running the OVMF platforms from the OvmfPkg, the QEMU emulator from https://www.qemu.org/ must be installed.
$ brew install qemu
$ brew upgrade qemu
Tools installed using the brew command are placed in /usr/local/bin. The PATH environment variable must be updated so the newly installed tools are used instead of older pre-installed tools.
export PATH=/usr/local/bin:$PATH
Run the following commands to verify the versions of the tools that have been installed.
nasm –v
iasl –v
qemu-system-x86_64 --version
mtoc
Pick the location you want to down load the files to and cd to that directory:
cd ~/work
git clone https://github.com/tianocore/edk2.git
cd edk2
git submodule update --init
Build the EmulatorPkg:
cd ~/work/edk2/EmulatorPkg
./build.sh
Debug the EmulatorPkg
./build.sh run
Initializing workspace
/Users/bcran/src/edk2/BaseTools
Loading previous configuration from /Users/bcran/src/edk2/Conf/BuildEnv.sh
Using EDK2 in-source Basetools
WORKSPACE: /Users/bcran/src/edk2
EDK_TOOLS_PATH: /Users/bcran/src/edk2/BaseTools
CONF_PATH: /Users/bcran/src/edk2/Conf
using prebuilt tools
(lldb) target create "./Host"
Current executable set to '/Users/bcran/src/edk2/Build/EmulatorX64/DEBUG_XCODE5/X64/Host' (x86_64).
(lldb) command script import /Users/bcran/src/edk2/EmulatorPkg/Unix/lldbefi.py
Type r to run emulator. SecLldbScriptBreak armed. EFI modules should now get source level debugging in the emulator.
(lldb) script lldb.debugger.SetAsync(True)
(lldb) run
Process 12155 launched: '/Users/bcran/src/edk2/Build/EmulatorX64/DEBUG_XCODE5/X64/Host' (x86_64)
EDK II UNIX Host Emulation Environment from http://www.tianocore.org/edk2/
BootMode 0x00
OS Emulator passing in 128 KB of temp RAM at 0x102000000 to SEC
FD loaded from ../FV/FV_RECOVERY.fd at 0x102020000 contains SEC Core
...
Type process interrupt at the lldb prompt (don't forget to hit carriage return) to pause execution. Ctrl-c in the terminal window will quit lldb. bt is the stack backtrace command:
Process 12420 stopped
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
frame #0: 0x00007fff2033cc22 libsystem_kernel.dylib:__semwait_signal() + 10
libsystem_kernel.dylib`__semwait_signal:
-> 0x7fff2033cc22 <+10>: jae 0x7fff2033cc2c ; <+20>
0x7fff2033cc24 <+12>: movq %rax, %rdi
0x7fff2033cc27 <+15>: jmp 0x7fff2033b72d ; cerror
0x7fff2033cc2c <+20>: retq
Target 0: (Host) stopped.
(lldb) bt
* thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGSTOP
* frame #0: 0x00007fff2033cc22 libsystem_kernel.dylib:__semwait_signal() + 10
frame #1: 0x00007fff202bcc2a libsystem_c.dylib:nanosleep() + 196
frame #2: 0x0000000100005e55 Host:SecCpuSleep() + 37 at /Users/bcran/src/edk2/EmulatorPkg/Unix/Host/EmuThunk.c:334
frame #3: 0x000000010000e96e Host:GasketSecCpuSleep() + 11 at /Users/bcran/src/edk2/Build/EmulatorX64/DEBUG_XCODE5/X64/EmulatorPkg/Unix/Host/Host/OUTPUT/X64/Gasket.iiii:283
frame #4: 0x0000000106f985e9 DxeCore.dll:CoreDispatchEventNotifies() + 264 at /Users/bcran/src/edk2/MdeModulePkg/Core/Dxe/Event/Event.c:194
frame #5: 0x0000000106f97fce DxeCore.dll:CoreRestoreTpl() + 227 at /Users/bcran/src/edk2/MdeModulePkg/Core/Dxe/Event/Tpl.c:131
frame #6: 0x0000000106f989db DxeCore.dll:CoreSignalEvent() + 111 at /Users/bcran/src/edk2/MdeModulePkg/Core/Dxe/Event/Event.c:566
frame #7: 0x0000000106f98b01 DxeCore.dll:CoreWaitForEvent() + 94 at /Users/bcran/src/edk2/MdeModulePkg/Core/Dxe/Event/Event.c:707
frame #8: 0x0000000113e8e54c BdsDxe.dll:BdsWaitForSingleEvent() + 127 at /Users/bcran/src/edk2/MdeModulePkg/Universal/BdsDxe/BdsEntry.c:250
frame #9: 0x0000000113e8e70b BdsDxe.dll:BdsWait() + 215 at /Users/bcran/src/edk2/MdeModulePkg/Universal/BdsDxe/BdsEntry.c:328
frame #10: 0x0000000113e8dffb BdsDxe.dll:BdsEntry() + 2612 at /Users/bcran/src/edk2/MdeModulePkg/Universal/BdsDxe/BdsEntry.c:1012
frame #11: 0x0000000106f9bbd6 DxeCore.dll:DxeMain() + 2791 at /Users/bcran/src/edk2/MdeModulePkg/Core/Dxe/DxeMain/DxeMain.c:551
frame #12: 0x0000000106f9ed8f DxeCore.dll:_ModuleEntryPoint() + 20 at /Users/bcran/src/edk2/MdePkg/Library/DxeCoreEntryPoint/DxeCoreEntryPoint.c:48
frame #13: 0x0000000106fdd02f DxeIpl.dll:InternalSwitchStack() + 15
frame #14: 0x0000000106fdc0b6 DxeIpl.dll:HandOffToDxeCore() + 546 at /Users/bcran/src/edk2/MdeModulePkg/Core/DxeIplPeim/X64/DxeLoadFunc.c:126
frame #15: 0x0000000106fda78a DxeIpl.dll:DxeLoadCore() + 1354 at /Users/bcran/src/edk2/MdeModulePkg/Core/DxeIplPeim/DxeLoad.c:449
frame #16: 0x0000000106ff1d7c
frame #17: 0x00000001020255c6 PeiCore.dll:PeiCore() + 1982 at /Users/bcran/src/edk2/MdeModulePkg/Core/Pei/PeiMain/PeiMain.c:331
frame #18: 0x000000010202a82c PeiCore.dll:PeiCheckAndSwitchStack() + 1171 at /Users/bcran/src/edk2/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c:842
frame #19: 0x000000010202b853 PeiCore.dll:PeiDispatcher() + 1206 at /Users/bcran/src/edk2/MdeModulePkg/Core/Pei/Dispatcher/Dispatcher.c:1609
(lldb)
To build from the Xcode GUI open ~/work/edk2/EmulatorPkg/Unix/Xcode/xcode_project64/xcode_project.xcodeproj. You can build, clean, and source level debug from the Xcode GUI. You can hit the Build and Debug button to start the build process. You need to need to hit command-shift-B to show the output of the build. Click Pause to break into the debugger.
The stack trace contains items that show as ?? since the default shell is checked in as a binary. nanosleep$UNIX2003 and __semwait_signal are POSIX library calls and you do not get C source debug with these symbols.
Note The Xcode project is currently (as of 2021-05-09) broken.
The remaining instructions are common for most UNIX-like systems.
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