kpatch 0.9.9

• Support for gcc-13
• Support for Linux 6.2
• Support for UBSAN kernels
• Fix handling of PowerPC cpu features
• Added RHEL-8.8 and 9.2 integration tests

kpatch 0.9.8

• Clang fix ups from Pete Swain
• Support for gcc-12
• Support for Linux 5.19
• Added RHEL-8.7 and 9.1 integration tests
• Fixed __UNIQUE_ID() variable correlation
• Improved handling of unsupported static calls

kpatch 0.9.7

• S390x kpatch support
• Add support for openEuler + documentation (kpatch-build)
• Use err.h instead of error.h for musl support (kpatch-build)
• Add support for .return_sites section (kpatch-build x86)
• Create missing section symbol (kpatch-build)
• Fix symtab parsing lookup (kpatch-build)
• Many fixes and improvements in create-diff-object (kpatch-build)
• Unload already disabled modules (kpatch util)
• Add integration tests for: rhel-{8.6,9.0},5.18.0 (test)
• Add tests for patching a syscall (test)
• Combine and improve Fedora, CentOS with RHEL kpatch-build dependencies (test)
• Major revamp of README.md and documentation
• Add syscall patching macros (kmod)

kpatch 0.9.6

• Allow OOT modules to be built with non-distro kernels
• Add cross-arch unit testing support
• Support ELF extended symbol section indexes
• Allow setting kernel version if --sourcedir and --vmlinux are used
• Cleanup and enhance LINE macro detection for all arches
• Fix segfault on .LCx string literal symbols
• Include __dyndbg section when referenced by jump table
• Honor user provided KBUILD_EXTRA_SYMBOLS
• Support .retpoline_sites section
• Add native compiler selection via CROSS_COMPILE

kpatch 0.9.5

Changes since v0.9.4:

openEuler support
kpatch-build: Do not check KLP_REPLACE for kpatch.ko-based patches
create-diff-object: fix use after free in kpatch-check-relocations()
kpatch-build: Handle error in create-klp-module
create-diff-object: support ppc64le relative jump labels
kmod/patch: clean only rebuildable objs
kpatch-build: save environment varibles to file

kpatch 0.9.4

Interesting changes since v0.9.3:

• Support for multiple source files
• Makefile tweaks for handling non-replace kpatch building
• Support CONFIG_PRINTK_INDEX
• kpatch-build: set EXTRAVERSION and not localversion for RH kernels
• Make sure section symbols exist
• create-diff-object: Check that the section has a secsym
• kpatch: rmmod module of the same name before loading a module
• kpatch-build: enable option -R|--replace to build replace klp
• kpatch: use /sys/kernel/kpatch/ to check whether core module is loaded
• kpatch: Sync signal subcmd usage output with manpage
• fixes for the out-of-range relocation check

kpatch 0.9.3

Interesting changes since v0.9.2:

• Initial support for clang compiler
• Add support for rhel-8.4
• rhel-8.4: workaround pahole and extended ELF sections
• rhel-8.4: drop klp.arch support
• Kpatch command waits for module to fully unload
• Kpatch command informs user when signal subcommand is unnecessary
• kpatch-build skips ppc64le vdso files

kpatch 0.9.2

Interesting changes since v0.9.1:

• Integration test support for rhel-{7.8,7.9,8.1,8.2}, centos-8
• Better support for gcc child functions
• Batch jump label errors to report all instances
• Dynrela code cleanup
• Remove .klp.arch and add support for jump labels in v5.8+ kernels
• Mark ignored sections earlier to support functions missing ftrace hook
• Minor README.md improvements
• Add ppc64le mcount support to patched functions
• Show additional stalled process information in kpatch script
• Increased shellcheck coverage and fixes
• ppc64le plugin fixes for gcc v10
• Ignore _UNIQUE_ID symbol from tristate config objects
• Don't clear dmesg during integration tests
• Detect and report MODVERSIONS symbol version CRC changes

kpatch 0.9.1

A patch release to bump the release number in the tree which also includes recent fixes:

• Handle ppc64le toc with only constants
• Don't strip callback section symbols
• Integration tests update
• Fix -Wconversion warnings
• Process debug sections last
• Use annotation tags as part of the release process

kpatch 0.9.0

Increment version to v0.9.0 due to the fact that the core module is now deprecated.

• The core module (kpatch.ko) is deprecated and is no longer compiled by default. CONFIG_LIVEPATCH is recommended instead. For more details, see #1042.
• Many bug fixes
• Many integration test improvements and fixes
• Documentation cleanups