Changes in Build

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/tools/objtool/arch/x86/Build

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 18:44:42 +0100

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/tools/objtool/arch/x86/Build

cc4adab164b772a34b3340d644b7c4728498581e - Merge tag 'v6.19-rc1' into msm-next

Tue, 20 Jan 2026 23:06:55 +0100

Merge tag 'v6.19-rc1' into msm-nextMerge Linux 6.19-rc1 in order to catch up with other changes (e.g. UBWCconfig database defining UBWC_6).Signed-off-by: Dmitry Baryshkov List of files: /linux/tools/objtool/arch/x86/Build

5add3c3c280a35f7e258e9cef7607db5a2e56fdc - Merge drm/drm-next into drm-xe-next

Fri, 19 Dec 2025 11:51:22 +0100

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 6.19-rc1. An important upstream bugfix andto help unblock PTL CI.Signed-off-by: Thomas Hellström List of files: /linux/tools/objtool/arch/x86/Build

b8304863a3990d0f18c38e5b94191830a63ee1af - Merge drm/drm-next into drm-intel-next

Mon, 15 Dec 2025 14:24:02 +0100

Merge drm/drm-next into drm-intel-nextSync-up some display code needed for Async flips refactor.Signed-off-by: Rodrigo Vivi List of files: /linux/tools/objtool/arch/x86/Build

7f790dd21a931c61167f7bdc327aecf2cebad327 - Merge drm/drm-next into drm-misc-next

Mon, 15 Dec 2025 09:27:39 +0100

Merge drm/drm-next into drm-misc-nextLet's kickstart the v6.20 (7.0?) release cycle.Signed-off-by: Maxime Ripard List of files: /linux/tools/objtool/arch/x86/Build

24f171c7e145f43b9f187578e89b0982ce87e54c - Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

Sun, 21 Dec 2025 11:11:11 +0100

Merge tag 'asoc-fix-v6.19-rc1' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linusASoC: Fixes for v6.19We've been quite busy with fixes since the merge window, though not inany particularly exciting ways - the standout thing is the fix for _SXcontrols which were broken by a change to how we do clamping, otherwiseit's all fairly run of the mill fixes and quirks. List of files: /linux/tools/objtool/arch/x86/Build

84318277d6334c6981ab326d4acc87c6a6ddc9b8 - Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixes

Mon, 15 Dec 2025 12:53:27 +0100

Merge remote-tracking branch 'drm/drm-fixes' into drm-misc-fixesPull in rc1 to include all changes since the merge window closed,and grab all fixes and changes from drm/drm-next.Signed-off-by: Maarten Lankhorst List of files: /linux/tools/objtool/arch/x86/Build

63e6995005be8ceb8a1d56a18df1a1a40c28356d - Merge tag 'objtool-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 02 Dec 2025 05:18:59 +0100

Merge tag 'objtool-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull objtool updates from Ingo Molnar: - klp-build livepatch module generation (Josh Poimboeuf) Introduce new objtool features and a klp-build script to generate livepatch modules using a source .patch as input. This builds on concepts from the longstanding out-of-tree kpatch project which began in 2012 and has been used for many years to generate livepatch modules for production kernels. However, this is a complete rewrite which incorporates hard-earned lessons from 12+ years of maintaining kpatch. Key improvements compared to kpatch-build: - Integrated with objtool: Leverages objtool's existing control-flow graph analysis to help detect changed functions. - Works on vmlinux.o: Supports late-linked objects, making it compatible with LTO, IBT, and similar. - Simplified code base: ~3k fewer lines of code. - Upstream: No more out-of-tree #ifdef hacks, far less cruft. - Cleaner internals: Vastly simplified logic for symbol/section/reloc inclusion and special section extraction. - Robust __LINE__ macro handling: Avoids false positive binary diffs caused by the __LINE__ macro by introducing a fix-patch-lines script which injects #line directives into the source .patch to preserve the original line numbers at compile time. - Disassemble code with libopcodes instead of running objdump (Alexandre Chartre) - Disassemble support (-d option to objtool) by Alexandre Chartre, which supports the decoding of various Linux kernel code generation specials such as alternatives: 17ef: sched_balance_find_dst_group+0x62f mov 0x34(%r9),%edx 17f3: sched_balance_find_dst_group+0x633 | | X86_FEATURE_POPCNT 17f3: sched_balance_find_dst_group+0x633 | call 0x17f8 <__sw_hweight64> | popcnt %rdi,%rax 17f8: sched_balance_find_dst_group+0x638 cmp %eax,%edx ... jump table alternatives: 1895: sched_use_asym_prio+0x5 test $0x8,%ch 1898: sched_use_asym_prio+0x8 je 0x18a9 189a: sched_use_asym_prio+0xa | | JUMP 189a: sched_use_asym_prio+0xa | jmp 0x18ae | nop2 189c: sched_use_asym_prio+0xc mov $0x1,%eax 18a1: sched_use_asym_prio+0x11 and $0x80,%ecx ... exception table alternatives: native_read_msr: 5b80: native_read_msr+0x0 mov %edi,%ecx 5b82: native_read_msr+0x2 | | EXCEPTION 5b82: native_read_msr+0x2 | rdmsr | resume at 0x5b84 5b84: native_read_msr+0x4 shl $0x20,%rdx .... x86 feature flag decoding (also see the X86_FEATURE_POPCNT example in sched_balance_find_dst_group() above): 2faaf: start_thread_common.constprop.0+0x1f jne 0x2fba4 2fab5: start_thread_common.constprop.0+0x25 | | X86_FEATURE_ALWAYS | X86_BUG_NULL_SEG 2fab5: start_thread_common.constprop.0+0x25 | jmp 0x2faba <.altinstr_aux+0x2f4> | jmp 0x4b0 | nop5 2faba: start_thread_common.constprop.0+0x2a mov $0x2b,%eax ... NOP sequence shortening: 1048e2: snapshot_write_finalize+0xc2 je 0x104917 1048e4: snapshot_write_finalize+0xc4 nop6 1048ea: snapshot_write_finalize+0xca nop11 1048f5: snapshot_write_finalize+0xd5 nop11 104900: snapshot_write_finalize+0xe0 mov %rax,%rcx 104903: snapshot_write_finalize+0xe3 mov 0x10(%rdx),%rax ... and much more. - Function validation tracing support (Alexandre Chartre) - Various -ffunction-sections fixes (Josh Poimboeuf) - Clang AutoFDO (Automated Feedback-Directed Optimizations) support (Josh Poimboeuf) - Misc fixes and cleanups (Borislav Petkov, Chen Ni, Dylan Hatch, Ingo Molnar, John Wang, Josh Poimboeuf, Pankaj Raghav, Peter Zijlstra, Thorsten Blum)* tag 'objtool-core-2025-12-01' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (129 commits) objtool: Fix segfault on unknown alternatives objtool: Build with disassembly can fail when including bdf.h objtool: Trim trailing NOPs in alternative objtool: Add wide output for disassembly objtool: Compact output for alternatives with one instruction objtool: Improve naming of group alternatives objtool: Add Function to get the name of a CPU feature objtool: Provide access to feature and flags of group alternatives objtool: Fix address references in alternatives objtool: Disassemble jump table alternatives objtool: Disassemble exception table alternatives objtool: Print addresses with alternative instructions objtool: Disassemble group alternatives objtool: Print headers for alternatives objtool: Preserve alternatives order objtool: Add the --disas= action objtool: Do not validate IBT for .return_sites and .call_sites objtool: Improve tracing of alternative instructions objtool: Add functions to better name alternatives objtool: Identify the different types of alternatives ... List of files: /linux/tools/objtool/arch/x86/Build

8308fd001927f5bdc37a9c9f9c413baec3fb7bbe - objtool: Add Function to get the name of a CPU feature

Fri, 21 Nov 2025 10:53:36 +0100

objtool: Add Function to get the name of a CPU featureAdd a function to get the name of a CPU feature. The function isarchitecture dependent and currently only implemented for x86. Thefeature names are automatically generated from the cpufeatures.hinclude file.Signed-off-by: Alexandre Chartre Signed-off-by: Peter Zijlstra (Intel) Acked-by: Josh Poimboeuf Link: https://patch.msgid.link/20251121095340.464045-27-alexandre.chartre@oracle.com List of files: /linux/tools/objtool/arch/x86/Build

a23e1966932464e1c5226cb9ac4ce1d5fc10ba22 - Merge branch 'next' into for-linus

Mon, 15 Jul 2024 23:03:44 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.11 merge window. List of files: /linux/tools/objtool/arch/x86/Build

6f47c7ae8c7afaf9ad291d39f0d3974f191a7946 - Merge tag 'v6.9' into next

Tue, 28 May 2024 06:37:18 +0200

Merge tag 'v6.9' into nextSync up with the mainline to bring in the new cleanup API. List of files: /linux/tools/objtool/arch/x86/Build

60a2f25de7b8b785baee2932db932ae9a5b8c86d - Merge drm/drm-next into drm-intel-gt-next

Thu, 16 May 2024 09:33:01 +0200

Merge drm/drm-next into drm-intel-gt-nextSome display refactoring patches are needed in order to allow conflict-less merging.Signed-off-by: Tvrtko Ursulin List of files: /linux/tools/objtool/arch/x86/Build

594ce0b8a998aa4d05827cd7c0d0dcec9a1e3ae2 - Merge topic branches 'clkdev' and 'fixes' into for-linus

Mon, 10 Jun 2024 13:03:21 +0200

Merge topic branches 'clkdev' and 'fixes' into for-linus List of files: /linux/tools/objtool/arch/x86/Build

173b0b5b0e865348684c02bd9cb1d22b5d46e458 - Merge remote-tracking branch 'torvalds/master' into perf-tools-next

Mon, 22 Apr 2024 18:35:18 +0200

Merge remote-tracking branch 'torvalds/master' into perf-tools-nextTo pick up fixes sent via perf-tools, by Namhyung Kim.Signed-off-by: Arnaldo Carvalho de Melo List of files: /linux/tools/objtool/arch/x86/Build

1dd4505cf4c8c3bffaf762d2c2d7c443a52275f0 - Merge branch 'master' into mm-stable

Mon, 25 Mar 2024 18:45:32 +0100

Merge branch 'master' into mm-stable List of files: /linux/tools/objtool/arch/x86/Build

79790b6818e96c58fe2bffee1b418c16e64e7b80 - Merge drm/drm-next into drm-xe-next

Fri, 12 Apr 2024 15:14:25 +0200

Merge drm/drm-next into drm-xe-nextBackmerging drm-next in order to get up-to-date and in particularto access commit 9ca5facd0400f610f3f7f71aeb7fc0b949a48c67.Signed-off-by: Thomas Hellström List of files: /linux/tools/objtool/arch/x86/Build

3e5a516f3bf1a33f2bf219f570e9b5c031616f6a - Merge tag 'phy_dp_modes_6.10' into msm-next-lumag

Mon, 08 Apr 2024 17:35:51 +0200

Merge tag 'phy_dp_modes_6.10' into msm-next-lumagMerge DisplayPort subnode API in order to allow DisplayPort driver toconfigure the PHYs either to the DP or eDP mode, depending on hardwareconfiguration.Signed-off-by: Dmitry Baryshkov List of files: /linux/tools/objtool/arch/x86/Build

5add703f6acad1c63f8a532b6de56e50d548e904 - Merge drm/drm-next into drm-intel-next

Tue, 02 Apr 2024 14:17:13 +0200

Merge drm/drm-next into drm-intel-nextCatching up on 6.9-rc2Signed-off-by: Rodrigo Vivi List of files: /linux/tools/objtool/arch/x86/Build

0d21364c6e8dc1f62c34bbc49d49935c8b01844c - Merge drm/drm-next into drm-misc-next

Tue, 02 Apr 2024 09:51:30 +0200

Merge drm/drm-next into drm-misc-nextBackmerging to get v6.9-rc2 changes into drm-misc-next.Signed-off-by: Thomas Zimmermann List of files: /linux/tools/objtool/arch/x86/Build