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author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-28 11:35:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-06-28 11:35:55 -0700 |
commit | b89c07dea16137696d0f2d479ef665ef7c1022ab (patch) | |
tree | 7a54bdcd33d31f1d7ec37657176d514ffdffc17b /kernel | |
parent | 6796355bc49b625a701389c954073c4e5dad4381 (diff) | |
parent | e31694e0a7a709293319475d8001e05e31f2178c (diff) | |
parent | d33b9035e14a35f6f2a5f067f0b156a93581811d (diff) | |
download | linux-b89c07dea16137696d0f2d479ef665ef7c1022ab.tar.bz2 |
Merge tags 'objtool-urgent-2021-06-28' and 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool fix and updates from Ingo Molnar:
"An ELF format fix for a section flags mismatch bug that breaks kernel
tooling such as kpatch-build.
The biggest change in this cycle is the new code to handle and rewrite
variable sized jump labels - which results in slightly tighter code
generation in hot paths, through the use of short(er) NOPs.
Also a number of cleanups and fixes, and a change to the generic
include/linux/compiler.h to handle a s390 GCC quirk"
* tag 'objtool-urgent-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Don't make .altinstructions writable
* tag 'objtool-core-2021-06-28' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool: Improve reloc hash size guestimate
instrumentation.h: Avoid using inline asm operand modifiers
compiler.h: Avoid using inline asm operand modifiers
kbuild: Fix objtool dependency for 'OBJECT_FILES_NON_STANDARD_<obj> := n'
objtool: Reflow handle_jump_alt()
jump_label/x86: Remove unused JUMP_LABEL_NOP_SIZE
jump_label, x86: Allow short NOPs
objtool: Provide stats for jump_labels
objtool: Rewrite jump_label instructions
objtool: Decode jump_entry::key addend
jump_label, x86: Emit short JMP
jump_label: Free jump_entry::key bit1 for build use
jump_label, x86: Add variable length patching support
jump_label, x86: Introduce jump_entry_size()
jump_label, x86: Improve error when we fail expected text
jump_label, x86: Factor out the __jump_table generation
jump_label, x86: Strip ASM jump_label support
x86, objtool: Dont exclude arch/x86/realmode/
objtool: Rewrite hashtable sizing