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When building modules (as well as the kernel) with ARCH=um, the options -Dsetjmp=kernel_setjmp and -Dlongjmp=kernel_longjmp are passed to the C preprocessor for C files. This causes the setjmp and longjmp used in module/lua/ldo.c to be kernel_setjmp and kernel_longjmp respectively in the object file. However, the setjmp and longjmp that is intended to be called is defined in an architecture dependent assembly file under the directory module/lua/setjmp. Since it is an assembly and not a C file, the preprocessor define is not given and the names do not change. This becomes an issue when modpost is trying to create the Module.symvers and sees no defined symbol for kernel_setjmp and kernel_longjmp. To fix this, if the macro CONFIG_UML is defined, then setjmp and longjmp macros are undefined. When building with ARCH=um for x86 sub-architectures, CONFIG_X86 is not defined. Instead, CONFIG_UML_X86 is defined. Despite this, the UML x86 sub-architecture can use the same object files as the x86 architectures because the x86 sub-architecture UML kernel is running with the same instruction set as CONFIG_X86. So the modules/Kbuild build file is updated to add the same object files that CONFIG_X86 would add when CONFIG_UML_X86 is defined. Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov> Signed-off-by: Glenn Washburn <development@efficientek.com> Closes #13547 |
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OpenZFS is an advanced file system and volume manager which was originally developed for Solaris and is now maintained by the OpenZFS community. This repository contains the code for running OpenZFS on Linux and FreeBSD.
Official Resources
- Documentation - for using and developing this repo
- ZoL Site - Linux release info & links
- Mailing lists
- OpenZFS site - for conference videos and info on other platforms (illumos, OSX, Windows, etc)
Installation
Full documentation for installing OpenZFS on your favorite operating system can be found at the Getting Started Page.
Contribute & Develop
We have a separate document with contribution guidelines.
We have a Code of Conduct.
Release
OpenZFS is released under a CDDL license.
For more details see the NOTICE, LICENSE and COPYRIGHT files; UCRL-CODE-235197
Supported Kernels
- The
METAfile contains the officially recognized supported Linux kernel versions. - Supported FreeBSD versions are any supported branches and releases starting from 12.2-RELEASE.