e07092edca
The self-relocating PrePi module that is used by the ArmVirtQemuKernel and ArmVirtXen targets runs the linker in PIE mode so that it emits dynamic relocations into the final image in a way that permits the module to relocate itself into place before calling into the C code. When building these targets using the CLANG38 toolchain, we switch from the BFD to the GOLD linker, which behaves a bit differently when building PIE executables, and insists on emitting GOT indirected symbol references throughout, which means a) that we end up with absolute addresses (which need to be fixed up at load time) for no good reason, and b) we have to add support for handling GOT entries to GenFw if we want to convert them into PE/COFF. So instead, let's emit a shared library. Since the ELF image only serves as the input to GenFw, this does not lead to any loss of functionality, although it does require the -Bsymbolic linker option to be added to ensure that no symbol based dynamic relocations are emitted (which would, e.g., permit lazy binding for shared libraries). So for all other toolchains, the linker option changes are a no-op. Then, we have to convince CLANG38/GOLD that there is no need to refer to symbols via a GOT entry. This is done by forcing hidden visibility for all symbols in all components that make up the PrePi SEC module: this informs the linker that a symbol is never exported or preempted, making it safe to refer to it directly from anywhere in the code, rather than indirectly via a GOT entry. Contributed-under: TianoCore Contribution Agreement 1.1 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Acked-by: Laszlo Ersek <lersek@redhat.com>
243 lines
9.5 KiB
Plaintext
243 lines
9.5 KiB
Plaintext
#
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# Copyright (c) 2011-2015, ARM Limited. All rights reserved.
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# Copyright (c) 2014, Linaro Limited. All rights reserved.
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# Copyright (c) 2015 - 2016, Intel Corporation. All rights reserved.<BR>
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#
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# This program and the accompanying materials
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# are licensed and made available under the terms and conditions of the BSD License
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# which accompanies this distribution. The full text of the license may be found at
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# http://opensource.org/licenses/bsd-license.php
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#
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# THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
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# WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
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#
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#
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################################################################################
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#
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# Defines Section - statements that will be processed to create a Makefile.
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#
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################################################################################
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[Defines]
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PLATFORM_NAME = ArmVirtXen
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PLATFORM_GUID = d1c43be3-3373-4a06-86fb-d1cb3083a207
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PLATFORM_VERSION = 0.1
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DSC_SPECIFICATION = 0x00010005
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OUTPUT_DIRECTORY = Build/ArmVirtXen-$(ARCH)
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SUPPORTED_ARCHITECTURES = AARCH64|ARM
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BUILD_TARGETS = DEBUG|RELEASE|NOOPT
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SKUID_IDENTIFIER = DEFAULT
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FLASH_DEFINITION = ArmVirtPkg/ArmVirtXen.fdf
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!include ArmVirtPkg/ArmVirt.dsc.inc
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[LibraryClasses]
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SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf
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RealTimeClockLib|ArmVirtPkg/Library/XenRealTimeClockLib/XenRealTimeClockLib.inf
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XenHypercallLib|OvmfPkg/Library/XenHypercallLib/XenHypercallLib.inf
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ArmGenericTimerCounterLib|ArmVirtPkg/Library/XenArmGenericTimerVirtCounterLib/XenArmGenericTimerVirtCounterLib.inf
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ArmLib|ArmPkg/Library/ArmLib/ArmBaseLib.inf
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ArmMmuLib|ArmPkg/Library/ArmMmuLib/ArmMmuBaseLib.inf
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# Virtio Support
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VirtioLib|OvmfPkg/Library/VirtioLib/VirtioLib.inf
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VirtioMmioDeviceLib|OvmfPkg/Library/VirtioMmioDeviceLib/VirtioMmioDeviceLib.inf
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ArmVirtMemInfoLib|ArmVirtPkg/Library/XenVirtMemInfoLib/XenVirtMemInfoLib.inf
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TimerLib|ArmPkg/Library/ArmArchTimerLib/ArmArchTimerLib.inf
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CapsuleLib|MdeModulePkg/Library/DxeCapsuleLibNull/DxeCapsuleLibNull.inf
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UefiBootManagerLib|MdeModulePkg/Library/UefiBootManagerLib/UefiBootManagerLib.inf
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BootLogoLib|MdeModulePkg/Library/BootLogoLib/BootLogoLib.inf
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PlatformBootManagerLib|ArmPkg/Library/PlatformBootManagerLib/PlatformBootManagerLib.inf
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CustomizedDisplayLib|MdeModulePkg/Library/CustomizedDisplayLib/CustomizedDisplayLib.inf
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[LibraryClasses.common.UEFI_DRIVER]
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UefiScsiLib|MdePkg/Library/UefiScsiLib/UefiScsiLib.inf
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[BuildOptions.common.EDKII.SEC, BuildOptions.common.EDKII.BASE]
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# Avoid MOVT/MOVW instruction pairs in code that may end up in the PIE
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# executable we build for the relocatable PrePi. They are not runtime
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# relocatable in ELF.
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*_CLANG35_ARM_CC_FLAGS = -mno-movt
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#
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# CLANG38 with LTO support enabled uses the GNU GOLD linker, which insists
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# on emitting GOT based symbol references when running in shared mode, unless
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# we override visibility to 'hidden' in all modules that make up the PrePi
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# build.
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#
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GCC:*_CLANG38_*_CC_FLAGS = -include $(WORKSPACE)/ArmVirtPkg/Include/Platform/Hidden.h
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################################################################################
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#
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# Pcd Section - list of all EDK II PCD Entries defined by this Platform
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#
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################################################################################
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[PcdsFixedAtBuild.common]
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gEfiMdeModulePkgTokenSpaceGuid.PcdFirmwareVersionString|L"$(FIRMWARE_VER)"
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gArmPlatformTokenSpaceGuid.PcdCoreCount|1
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!if $(ARCH) == AARCH64
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gArmTokenSpaceGuid.PcdVFPEnabled|1
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!endif
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gArmPlatformTokenSpaceGuid.PcdCPUCorePrimaryStackSize|0x4000
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# Size of the region used by UEFI in permanent memory (Reserved 64MB)
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gArmPlatformTokenSpaceGuid.PcdSystemMemoryUefiRegionSize|0x04000000
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#
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# ARM Virtual Architectural Timer
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#
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gArmTokenSpaceGuid.PcdArmArchTimerFreqInHz|0
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gEfiMdeModulePkgTokenSpaceGuid.PcdResetOnMemoryTypeInformationChange|FALSE
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gEfiMdeModulePkgTokenSpaceGuid.PcdBootManagerMenuFile|{ 0x21, 0xaa, 0x2c, 0x46, 0x14, 0x76, 0x03, 0x45, 0x83, 0x6e, 0x8a, 0xb6, 0xf4, 0x66, 0x23, 0x31 }
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gEfiIntelFrameworkModulePkgTokenSpaceGuid.PcdShellFile|{ 0x83, 0xA5, 0x04, 0x7C, 0x3E, 0x9E, 0x1C, 0x4F, 0xAD, 0x65, 0xE0, 0x52, 0x68, 0xD0, 0xB4, 0xD1 }
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## Default Terminal Type
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## 0-PCANSI, 1-VT100, 2-VT00+, 3-UTF8, 4-TTYTERM
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gEfiMdePkgTokenSpaceGuid.PcdDefaultTerminalType|4
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# Set terminal type to TtyTerm, the value encoded is EFI_TTY_TERM_GUID
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gArmVirtTokenSpaceGuid.PcdTerminalTypeGuidBuffer|{0x80, 0x6d, 0x91, 0x7d, 0xb1, 0x5b, 0x8c, 0x45, 0xa4, 0x8f, 0xe2, 0x5f, 0xdd, 0x51, 0xef, 0x94}
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[PcdsPatchableInModule.common]
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#
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# This will be overridden in the code
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#
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gArmTokenSpaceGuid.PcdSystemMemoryBase|0x0
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gArmTokenSpaceGuid.PcdSystemMemorySize|0x0
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gArmVirtTokenSpaceGuid.PcdDeviceTreeInitialBaseAddress|0x0
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gArmTokenSpaceGuid.PcdFdBaseAddress|0x0
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gArmTokenSpaceGuid.PcdFvBaseAddress|0x0
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[PcdsDynamicDefault.common]
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gArmTokenSpaceGuid.PcdArmArchTimerSecIntrNum|0x0
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gArmTokenSpaceGuid.PcdArmArchTimerIntrNum|0x0
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gArmTokenSpaceGuid.PcdArmArchTimerVirtIntrNum|0x0
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gArmTokenSpaceGuid.PcdArmArchTimerHypIntrNum|0x0
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#
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# ARM General Interrupt Controller
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#
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gArmTokenSpaceGuid.PcdGicDistributorBase|0x0
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gArmTokenSpaceGuid.PcdGicRedistributorsBase|0x0
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gArmTokenSpaceGuid.PcdGicInterruptInterfaceBase|0x0
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## PL031 RealTimeClock
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gArmPlatformTokenSpaceGuid.PcdPL031RtcBase|0x0
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gEfiMdePkgTokenSpaceGuid.PcdPlatformBootTimeOut|3
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################################################################################
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#
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# Components Section - list of all EDK II Modules needed by this Platform
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#
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################################################################################
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[Components.common]
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#
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# PEI Phase modules
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#
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ArmVirtPkg/PrePi/ArmVirtPrePiUniCoreRelocatable.inf {
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<LibraryClasses>
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ExtractGuidedSectionLib|EmbeddedPkg/Library/PrePiExtractGuidedSectionLib/PrePiExtractGuidedSectionLib.inf
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LzmaDecompressLib|MdeModulePkg/Library/LzmaCustomDecompressLib/LzmaCustomDecompressLib.inf
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PrePiLib|EmbeddedPkg/Library/PrePiLib/PrePiLib.inf
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HobLib|EmbeddedPkg/Library/PrePiHobLib/PrePiHobLib.inf
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PrePiHobListPointerLib|ArmPlatformPkg/Library/PrePiHobListPointerLib/PrePiHobListPointerLib.inf
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MemoryAllocationLib|EmbeddedPkg/Library/PrePiMemoryAllocationLib/PrePiMemoryAllocationLib.inf
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SerialPortLib|OvmfPkg/Library/XenConsoleSerialPortLib/XenConsoleSerialPortLib.inf
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}
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#
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# DXE
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#
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MdeModulePkg/Core/Dxe/DxeMain.inf {
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<LibraryClasses>
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NULL|MdeModulePkg/Library/DxeCrc32GuidedSectionExtractLib/DxeCrc32GuidedSectionExtractLib.inf
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DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
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}
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MdeModulePkg/Universal/PCD/Dxe/Pcd.inf {
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<LibraryClasses>
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PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
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}
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#
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# Architectural Protocols
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#
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ArmPkg/Drivers/CpuDxe/CpuDxe.inf
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MdeModulePkg/Core/RuntimeDxe/RuntimeDxe.inf
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MdeModulePkg/Universal/SecurityStubDxe/SecurityStubDxe.inf
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MdeModulePkg/Universal/CapsuleRuntimeDxe/CapsuleRuntimeDxe.inf
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MdeModulePkg/Universal/Variable/EmuRuntimeDxe/EmuVariableRuntimeDxe.inf
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MdeModulePkg/Universal/MonotonicCounterRuntimeDxe/MonotonicCounterRuntimeDxe.inf
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MdeModulePkg/Universal/ResetSystemRuntimeDxe/ResetSystemRuntimeDxe.inf
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EmbeddedPkg/RealTimeClockRuntimeDxe/RealTimeClockRuntimeDxe.inf
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EmbeddedPkg/MetronomeDxe/MetronomeDxe.inf
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MdeModulePkg/Universal/Console/ConPlatformDxe/ConPlatformDxe.inf
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MdeModulePkg/Universal/Console/TerminalDxe/TerminalDxe.inf
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MdeModulePkg/Universal/SerialDxe/SerialDxe.inf
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MdeModulePkg/Universal/HiiDatabaseDxe/HiiDatabaseDxe.inf
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ArmPkg/Drivers/ArmGic/ArmGicDxe.inf
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ArmPkg/Drivers/TimerDxe/TimerDxe.inf {
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<LibraryClasses>
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NULL|ArmVirtPkg/Library/ArmVirtTimerFdtClientLib/ArmVirtTimerFdtClientLib.inf
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}
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MdeModulePkg/Universal/WatchdogTimerDxe/WatchdogTimer.inf
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#
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# Platform Driver
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#
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ArmVirtPkg/XenioFdtDxe/XenioFdtDxe.inf
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ArmVirtPkg/FdtClientDxe/FdtClientDxe.inf
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#
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# FAT filesystem + GPT/MBR partitioning + UDF filesystem
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#
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MdeModulePkg/Universal/Disk/DiskIoDxe/DiskIoDxe.inf
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MdeModulePkg/Universal/Disk/PartitionDxe/PartitionDxe.inf
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MdeModulePkg/Universal/Disk/UnicodeCollation/EnglishDxe/EnglishDxe.inf
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FatPkg/EnhancedFatDxe/Fat.inf
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MdeModulePkg/Universal/Disk/UdfDxe/UdfDxe.inf
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#
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# Bds
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#
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MdeModulePkg/Universal/DevicePathDxe/DevicePathDxe.inf {
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<LibraryClasses>
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DevicePathLib|MdePkg/Library/UefiDevicePathLib/UefiDevicePathLib.inf
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PcdLib|MdePkg/Library/BasePcdLibNull/BasePcdLibNull.inf
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}
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MdeModulePkg/Universal/DisplayEngineDxe/DisplayEngineDxe.inf
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MdeModulePkg/Universal/SetupBrowserDxe/SetupBrowserDxe.inf
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MdeModulePkg/Universal/BdsDxe/BdsDxe.inf
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MdeModulePkg/Application/UiApp/UiApp.inf {
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<LibraryClasses>
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NULL|MdeModulePkg/Library/DeviceManagerUiLib/DeviceManagerUiLib.inf
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NULL|MdeModulePkg/Library/BootManagerUiLib/BootManagerUiLib.inf
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NULL|MdeModulePkg/Library/BootMaintenanceManagerUiLib/BootMaintenanceManagerUiLib.inf
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}
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OvmfPkg/XenBusDxe/XenBusDxe.inf
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OvmfPkg/XenPvBlkDxe/XenPvBlkDxe.inf
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#
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# ACPI support
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#
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ArmVirtPkg/XenPlatformHasAcpiDtDxe/XenPlatformHasAcpiDtDxe.inf
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!if $(ARCH) == AARCH64
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ArmVirtPkg/XenAcpiPlatformDxe/XenAcpiPlatformDxe.inf
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!endif
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