mirror of https://github.com/acidanthera/audk.git
5d533bbc27
When converting ELF to PE/COFF for the AArch64 target, we may encounter an R_AARCH64_ADR_GOT_PAGE relocation that refers to an ADR instruction instead of an ADRP instruction. This can happen when the toolchain is working around Cortex-A53 erratum #843419. If that's the case, be sure to calculate the offset appropriately. This resolves an issue experienced when building a StandaloneMm image (which is built with -fpie) with stack protection enabled on GCC compiled with "--enable-fix-cortex-a53-843419". In this case, the linker may convert an ADRP instruction appearing at an offset of 0xff8 or 0xffc modulo 4KiB into an ADR instruction, but will leave the original R_AARCH64_ADR_GOT_PAGE relocation in place. (This is not a bug in the linker, given that there is no other relocation type that it could reasonably convert it into) In this scenario, the following code is being generated by the toolchain: # Load to set the stack canary 2ffc: 10028020 adr x0, 8000 <mErrorString+0x1bc> 3008: f940d400 ldr x0, [x0, #424] # Load to check the stack canary 30cc: b0000020 adrp x0, 8000 <mErrorString+0x1bc> 30d0: f940d400 ldr x0, [x0, #424] GenFw rewrote that to: # Load to set the stack canary 2ffc: 10000480 adr x0, 0x308c 3008: 912ec000 add x0, x0, #0xbb0 # Load to check the stack canary 30cc: f0000460 adrp x0, 0x92000 30d0: 912ec000 add x0, x0, #0xbb0 Note that we're now setting the stack canary from the wrong address, resulting in an erroneous stack fault. After this fix, the offset will be calculated correctly for an ADR and the stack canary is set correctly. Note that there is a corner case where this may cause the conversion to fail: if the original GOT entry is just within -/+ 1 MiB of the reference, but the actual variable it refers to is not, the resulting offset cannot be represented by the immediate offset field in a ADR instruction. Given that this issue only affects PIE executables, which are rare and usually tiny, this is unlikely to cause problems in practice. Ref: https://edk2.groups.io/g/devel/topic/102202314 [ardb: expand commit log, add reference] Signed-off-by: Jake Garver <jake@nvidia.com> Reviewed-by: Rebecca Cran <rebecca@bsdio.com> |
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|---|---|---|
| .azurepipelines | ||
| .devcontainer | ||
| .github | ||
| .mergify | ||
| .pytool | ||
| ArmPkg | ||
| ArmPlatformPkg | ||
| ArmVirtPkg | ||
| BaseTools | ||
| Conf | ||
| CryptoPkg | ||
| DynamicTablesPkg | ||
| EmbeddedPkg | ||
| EmulatorPkg | ||
| FatPkg | ||
| FmpDevicePkg | ||
| IntelFsp2Pkg | ||
| IntelFsp2WrapperPkg | ||
| MdeModulePkg | ||
| MdePkg | ||
| NetworkPkg | ||
| OvmfPkg | ||
| PcAtChipsetPkg | ||
| PrmPkg | ||
| RedfishPkg | ||
| SecurityPkg | ||
| ShellPkg | ||
| SignedCapsulePkg | ||
| SourceLevelDebugPkg | ||
| StandaloneMmPkg | ||
| UefiCpuPkg | ||
| UefiPayloadPkg | ||
| UnitTestFrameworkPkg | ||
| .editorconfig | ||
| .git-blame-ignore-revs | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| CONTRIBUTING.md | ||
| License-History.txt | ||
| License.txt | ||
| Maintainers.txt | ||
| ReadMe.rst | ||
| edksetup.bat | ||
| edksetup.sh | ||
| pip-requirements.txt | ||
ReadMe.rst
============== EDK II Project ============== A modern, feature-rich, cross-platform firmware development environment for the UEFI and PI specifications from www.uefi.org. Core CI Build Status -------------------- ============================= ================= =============== =================== Host Type & Toolchain Build Status Test Status Code Coverage ============================= ================= =============== =================== Windows_VS2019_ |WindowsCiBuild| |WindowsCiTest| |WindowsCiCoverage| Ubuntu_GCC5_ |UbuntuCiBuild| |UbuntuCiTest| |UbuntuCiCoverage| ============================= ================= =============== =================== `More CI Build information <.pytool/Readme.md>`__ Platform CI Build Status ------------------------ Microsoft Windows VS2019 ```````````````````````` ============================= ================= ============= ============= ============== Toolchain CONFIG DEBUG RELEASE NOOPT ============================= ================= ============= ============= ============== EmulatorPkg_Win_VS2019_ | IA32 |em32d| |em32r| |em32n| | | X64 |em64d| |em64r| |em64n| | | IA32 FULL |em32fd| |em32fr| |em32fn| | | X64 FULL |em64fd| |em64fr| |em64fn| OvmfPkg_Win_VS2019_ | IA32 |op32d| |op32r| |op32n| | | X64 |op64d| |op64r| |op64n| | | IA32 X64 |op3264d| |op3264r| |op3264n| | | IA32 X64 FULL |op3264fd| |op3264fr| |op3264fn| ============================= ================= ============= ============= ============== Ubuntu 18.04 GCC5 ````````````````` ============================= ================= ============= ============= ============== Toolchain CONFIG DEBUG RELEASE NOOPT ============================= ================= ============= ============= ============== ArmVirtPkg_Ubuntu_GCC5_ | AARCH64 |avAArch64du| |avAArch64ru| |avAArch64nu| | | ARM |avArmdu| |avArmru| |avArmnu| EmulatorPkg_Ubuntu_GCC5_ | IA32 |em32du| |em32ru| |em32nu| | | X64 |em64du| |em64ru| |em64nu| | | IA32 FULL |em32fdu| |em32fru| |em32fnu| | | X64 FULL |em64fdu| |em64fru| |em64fnu| OvmfPkg_Ubuntu_GCC5_ | IA32 |op32du| |op32ru| |op32nu| | | X64 |op64du| |op64ru| |op64nu| | | IA32 X64 |op3264du| |op3264ru| |op3264nu| | | IA32 X64 FULL |op3264fdu| |op3264fru| |op3264fru| ============================= ================= ============= ============= ============== |TCBZ_2668|_ - EmulatorPkg Ubuntu GCC5 Segfaults during execution. |TCBZ_2639|_ - EmulatorPkg Ubuntu GCC5 Segfaults during execution. `More ArmVirtPkg CI Build Information <ArmVirtPkg/PlatformCI/ReadMe.md>`__ `More EmulatorPkg CI Build Information <EmulatorPkg/PlatformCI/ReadMe.md>`__ `More OvmfPkg CI Build Information <OvmfPkg/PlatformCI/ReadMe.md>`__ License Details --------------- The majority of the content in the EDK II open source project uses a `BSD-2-Clause Plus Patent License <License.txt>`__. The EDK II open source project contains the following components that are covered by additional licenses: - `BaseTools/Plugin/CodeQL/analyze <https://www.apache.org/licenses/LICENSE-2.0>`__ - `BaseTools/Source/C/LzmaCompress <BaseTools/Source/C/LzmaCompress/LZMA-SDK-README.txt>`__ - `BaseTools/Source/C/VfrCompile/Pccts <BaseTools/Source/C/VfrCompile/Pccts/RIGHTS>`__ - `CryptoPkg\Library\BaseCryptLib\SysCall\inet_pton.c <CryptoPkg\Library\BaseCryptLib\SysCall\inet_pton.c>`__ - `CryptoPkg\Library\Include\crypto\dso_conf.h <https://github.com/openssl/openssl/blob/e2e09d9fba1187f8d6aafaa34d4172f56f1ffb72/LICENSE>`__ - `CryptoPkg\Library\Include\openssl\opensslconf.h <https://github.com/openssl/openssl/blob/e2e09d9fba1187f8d6aafaa34d4172f56f1ffb72/LICENSE>`__ - `EmbeddedPkg/Library/FdtLib <EmbeddedPkg/Library/FdtLib/fdt.c>`__. (EDK II uses BSD License) - `EmbeddedPkg/Include/fdt.h <EmbeddedPkg/Include/fdt.h>`__. (EDK II uses BSD Licence) - `EmbeddedPkg/Include/libfdt.h <EmbeddedPkg/Include/libfdt.h>`__. (EDK II uses BSD License) - `MdeModulePkg/Library/LzmaCustomDecompressLib <MdeModulePkg/Library/LzmaCustomDecompressLib/LZMA-SDK-README.txt>`__ - `OvmfPkg <OvmfPkg/License.txt>`__ The EDK II open source project uses content from upstream projects as git submodules that are covered by additional licenses. - `ArmPkg/Library/ArmSoftFloatLib/berkeley-softfloat-3 <https://github.com/ucb-bar/berkeley-softfloat-3/blob/b64af41c3276f97f0e181920400ee056b9c88037/COPYING.txt>`__ - `BaseTools/Source/C/BrotliCompress/brotli <https://github.com/google/brotli/blob/666c3280cc11dc433c303d79a83d4ffbdd12cc8d/LICENSE>`__ - `CryptoPkg/Library/OpensslLib/openssl <https://github.com/openssl/openssl/blob/e2e09d9fba1187f8d6aafaa34d4172f56f1ffb72/LICENSE>`__ - `MdeModulePkg/Library/BrotliCustomDecompressLib/brotli <https://github.com/google/brotli/blob/666c3280cc11dc433c303d79a83d4ffbdd12cc8d/LICENSE>`__ - `MdeModulePkg/Universal/RegularExpressionDxe/oniguruma <https://github.com/kkos/oniguruma/blob/abfc8ff81df4067f309032467785e06975678f0d/COPYING>`__ - `UnitTestFrameworkPkg/Library/CmockaLib/cmocka <https://github.com/tianocore/edk2-cmocka/blob/f5e2cd77c88d9f792562888d2b70c5a396bfbf7a/COPYING>`__ - `UnitTestFrameworkPkg/Library/GoogleTestLib/googletest <https://github.com/google/googletest/blob/86add13493e5c881d7e4ba77fb91c1f57752b3a4/LICENSE>`__ - `UnitTestFrameworkPkg/Library/SubhookLib/subhook <https://github.com/Zeex/subhook/blob/83d4e1ebef3588fae48b69a7352cc21801cb70bc/LICENSE.txt>`__ - `RedfishPkg/Library/JsonLib/jansson <https://github.com/akheron/jansson/blob/2882ead5bb90cf12a01b07b2c2361e24960fae02/LICENSE>`__ - `MdePkg/Library/BaseFdtLib/libfdt <https://github.com/devicetree-org/pylibfdt/blob/f39368a217496d32c4091a2dba4045b60649e3a5/BSD-2-Clause>`__ - `MdePkg/Library/MipiSysTLib/mipisyst <https://github.com/MIPI-Alliance/public-mipi-sys-t/blob/aae857d0d05ac65152ed24992a4acd834a0a107c/LICENSE>`__ The EDK II Project is composed of packages. The maintainers for each package are listed in `Maintainers.txt <Maintainers.txt>`__. Resources --------- - `TianoCore <http://www.tianocore.org>`__ - `EDK II <https://github.com/tianocore/tianocore.github.io/wiki/EDK-II>`__ - `Getting Started with EDK II <https://github.com/tianocore/tianocore.github.io/wiki/Getting-Started-with-EDK-II>`__ - `Mailing Lists <https://github.com/tianocore/tianocore.github.io/wiki/Mailing-Lists>`__ - `TianoCore Bugzilla <https://bugzilla.tianocore.org>`__ - `How To Contribute <https://github.com/tianocore/tianocore.github.io/wiki/How-To-Contribute>`__ - `Release Planning <https://github.com/tianocore/tianocore.github.io/wiki/EDK-II-Release-Planning>`__ Code Contributions ------------------ To make a contribution to a TianoCore project, follow these steps. #. Create a change description in the format specified below to use in the source control commit log. #. Your commit message must include your ``Signed-off-by`` signature #. Submit your code to the TianoCore project using the process that the project documents on its web page. If the process is not documented, then submit the code on development email list for the project. #. It is preferred that contributions are submitted using the same copyright license as the base project. When that is not possible, then contributions using the following licenses can be accepted: - Apache License, Version 2.0: https://opensource.org/license/apache-2-0/ - BSD (2-clause): https://opensource.org/license/BSD-2-Clause - BSD (3-clause): https://opensource.org/license/BSD-3-Clause - MIT: https://opensource.org/license/MIT - Python-2.0: https://opensource.org/license/Python-2.0 - Zlib: https://opensource.org/license/Zlib For documentation: - FreeBSD Documentation License https://www.freebsd.org/copyright/freebsd-doc-license.html Contributions of code put into the public domain can also be accepted. Contributions using other licenses might be accepted, but further review will be required. Developer Certificate of Origin ------------------------------- Your change description should use the standard format for a commit message, and must include your ``Signed-off-by`` signature. In order to keep track of who did what, all patches contributed must include a statement that to the best of the contributor's knowledge they have the right to contribute it under the specified license. The test for this is as specified in the `Developer's Certificate of Origin (DCO) 1.1 <https://developercertificate.org/>`__. The contributor certifies compliance by adding a line saying Signed-off-by: Developer Name developer@example.org where ``Developer Name`` is the contributor's real name, and the email address is one the developer is reachable through at the time of contributing. :: Developer's Certificate of Origin 1.1 By making a contribution to this project, I certify that: (a) The contribution was created in whole or in part by me and I have the right to submit it under the open source license indicated in the file; or (b) The contribution is based upon previous work that, to the best of my knowledge, is covered under an appropriate open source license and I have the right under that license to submit that work with modifications, whether created in whole or in part by me, under the same open source license (unless I am permitted to submit under a different license), as indicated in the file; or (c) The contribution was provided directly to me by some other person who certified (a), (b) or (c) and I have not modified it. (d) I understand and agree that this project and the contribution are public and that a record of the contribution (including all personal information I submit with it, including my sign-off) is maintained indefinitely and may be redistributed consistent with this project or the open source license(s) involved. Sample Change Description / Commit Message ------------------------------------------ :: From: Contributor Name <contributor@example.com> Subject: [Repository/Branch PATCH] Pkg-Module: Brief-single-line-summary Full-commit-message Signed-off-by: Contributor Name <contributor@example.com> Notes for sample patch email ```````````````````````````` - The first line of commit message is taken from the email's subject line following ``[Repository/Branch PATCH]``. The remaining portion of the commit message is the email's content. - ``git format-patch`` is one way to create this format Definitions for sample patch email `````````````````````````````````` - ``Repository`` is the identifier of the repository the patch applies. This identifier should only be provided for repositories other than ``edk2``. For example ``edk2-BuildSpecification`` or ``staging``. - ``Branch`` is the identifier of the branch the patch applies. This identifier should only be provided for branches other than ``edk2/master``. For example ``edk2/UDK2015``, ``edk2-BuildSpecification/release/1.27``, or ``staging/edk2-test``. - ``Module`` is a short identifier for the affected code or documentation. For example ``MdePkg``, ``MdeModulePkg/UsbBusDxe``, ``Introduction``, or ``EDK II INF File Format``. - ``Brief-single-line-summary`` is a short summary of the change. - The entire first line should be less than ~70 characters. - ``Full-commit-message`` a verbose multiple line comment describing the change. Each line should be less than ~70 characters. - ``Signed-off-by`` is the contributor's signature identifying them by their real/legal name and their email address. Submodules ---------- The current submodules used in EDK II are in `.gitmodules <.gitmodules>`__. To get a full, buildable EDK II repository, use following steps of git command .. code-block:: bash git clone https://github.com/tianocore/edk2.git cd edk2 git submodule update --init cd .. If there's update for submodules, use following git commands to get the latest submodules code. .. code-block:: bash cd edk2 git pull git submodule update Note: When cloning submodule repos, '--recursive' option is not recommended. EDK II itself will not use any code/feature from submodules in above submodules. So using '--recursive' adds a dependency on being able to reach servers we do not actually want any code from, as well as needlessly downloading code we will not use. **Submodule Notes** ArmSoftFloatLib is required by OpensslLib. It's inevitable in openssl-1.1.1 (since stable201905) for floating point parameter conversion, but should be dropped once there's no such need in future release of openssl. .. =================================================================== .. This is a bunch of directives to make the README file more readable .. =================================================================== .. CoreCI .. _Windows_VS2019: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=32&branchName=master .. |WindowsCiBuild| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/Windows%20VS2019%20CI?branchName=master .. |WindowsCiTest| image:: https://img.shields.io/azure-devops/tests/tianocore/edk2-ci/32.svg .. |WindowsCiCoverage| image:: https://img.shields.io/badge/coverage-coming_soon-blue .. _Ubuntu_GCC5: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=31&branchName=master .. |UbuntuCiBuild| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/Ubuntu%20GCC5%20CI?branchName=master .. |UbuntuCiTest| image:: https://img.shields.io/azure-devops/tests/tianocore/edk2-ci/31.svg .. |UbuntuCiCoverage| image:: https://img.shields.io/badge/coverage-coming_soon-blue .. ArmVirtPkg .. _ArmVirtPkg_Ubuntu_GCC5: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=46&branchName=master .. |avAArch64du| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_AARCH64_DEBUG .. |avAArch64ru| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_AARCH64_RELEASE .. |avAArch64nu| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_AARCH64_NOOPT .. |avArmdu| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_ARM_DEBUG .. |avArmru| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_ARM_RELEASE .. |avArmnu| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_ArmVirtPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20QEMU_ARM_NOOPT .. EmulatorPkg .. |TCBZ_2668| image:: https://img.shields.io/bugzilla/2668?baseUrl=https%3A%2F%2Fbugzilla.tianocore.org .. _TCBZ_2668: https://bugzilla.tianocore.org/show_bug.cgi?id=2668 .. |TCBZ_2639| image:: https://img.shields.io/bugzilla/2639?baseUrl=https%3A%2F%2Fbugzilla.tianocore.org .. _TCBZ_2639: https://bugzilla.tianocore.org/show_bug.cgi?id=2639 .. _EmulatorPkg_Win_VS2019: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=44&branchName=master .. _EmulatorPkg_Ubuntu_GCC5: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=43&branchName=master .. |em32d| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_EmulatorPkg_Windows_VS2019_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20EmulatorPkg_IA32_DEBUG .. |em32du| image:: 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OvmfPkg .. |TCBZ_2661| image:: https://img.shields.io/bugzilla/2661?baseUrl=https%3A%2F%2Fbugzilla.tianocore.org .. _TCBZ_2661: https://bugzilla.tianocore.org/show_bug.cgi?id=2661 .. _OvmfPkg_Win_VS2019: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=50&branchName=master .. _OvmfPkg_Ubuntu_GCC5: https://dev.azure.com/tianocore/edk2-ci/_build/latest?definitionId=48&branchName=master .. |op32d| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Windows_VS2019_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32_DEBUG .. |op32du| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32_DEBUG .. |op32r| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Windows_VS2019_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32_RELEASE .. 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image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Windows_VS2019_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32X64_FULL_DEBUG .. |op3264fdu| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32X64_FULL_DEBUG .. |op3264fr| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Windows_VS2019_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32X64_FULL_RELEASE .. |op3264fru| image:: https://dev.azure.com/tianocore/edk2-ci/_apis/build/status/PlatformCI_OvmfPkg_Ubuntu_GCC5_CI?branchName=master&jobName=Platform_CI&configuration=Platform_CI%20OVMF_IA32X64_FULL_RELEASE .. |op3264fn| replace:: |TCBZ_2661|_ .. |op3264fnu| image:: 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