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Linux kernel source tree
a6640c8c2f
- Introduce the generic section-based annotation
infrastructure a.k.a. ASM_ANNOTATE/ANNOTATE (Peter Zijlstra)
- Convert various facilities to ASM_ANNOTATE/ANNOTATE: (Peter Zijlstra)
- ANNOTATE_NOENDBR
- ANNOTATE_RETPOLINE_SAFE
- instrumentation_{begin,end}()
- VALIDATE_UNRET_BEGIN
- ANNOTATE_IGNORE_ALTERNATIVE
- ANNOTATE_INTRA_FUNCTION_CALL
- {.UN}REACHABLE
- Optimize the annotation-sections parsing code (Peter Zijlstra)
- Centralize annotation definitions in <linux/objtool.h>
- Unify & simplify the barrier_before_unreachable()/unreachable()
definitions (Peter Zijlstra)
- Convert unreachable() calls to BUG() in x86 code, as
unreachable() has unreliable code generation (Peter Zijlstra)
- Remove annotate_reachable() and annotate_unreachable(), as it's
unreliable against compiler optimizations (Peter Zijlstra)
- Fix non-standard ANNOTATE_REACHABLE annotation order (Peter Zijlstra)
- Robustify the annotation code by warning about unknown annotation
types (Peter Zijlstra)
- Allow arch code to discover jump table size, in preparation of
annotated jump table support (Ard Biesheuvel)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2025-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Introduce the generic section-based annotation infrastructure a.k.a.
ASM_ANNOTATE/ANNOTATE (Peter Zijlstra)
- Convert various facilities to ASM_ANNOTATE/ANNOTATE: (Peter Zijlstra)
- ANNOTATE_NOENDBR
- ANNOTATE_RETPOLINE_SAFE
- instrumentation_{begin,end}()
- VALIDATE_UNRET_BEGIN
- ANNOTATE_IGNORE_ALTERNATIVE
- ANNOTATE_INTRA_FUNCTION_CALL
- {.UN}REACHABLE
- Optimize the annotation-sections parsing code (Peter Zijlstra)
- Centralize annotation definitions in <linux/objtool.h>
- Unify & simplify the barrier_before_unreachable()/unreachable()
definitions (Peter Zijlstra)
- Convert unreachable() calls to BUG() in x86 code, as unreachable()
has unreliable code generation (Peter Zijlstra)
- Remove annotate_reachable() and annotate_unreachable(), as it's
unreliable against compiler optimizations (Peter Zijlstra)
- Fix non-standard ANNOTATE_REACHABLE annotation order (Peter Zijlstra)
- Robustify the annotation code by warning about unknown annotation
types (Peter Zijlstra)
- Allow arch code to discover jump table size, in preparation of
annotated jump table support (Ard Biesheuvel)
* tag 'objtool-core-2025-01-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/mm: Convert unreachable() to BUG()
objtool: Allow arch code to discover jump table size
objtool: Warn about unknown annotation types
objtool: Fix ANNOTATE_REACHABLE to be a normal annotation
objtool: Convert {.UN}REACHABLE to ANNOTATE
objtool: Remove annotate_{,un}reachable()
loongarch: Use ASM_REACHABLE
x86: Convert unreachable() to BUG()
unreachable: Unify
objtool: Collect more annotations in objtool.h
objtool: Collapse annotate sequences
objtool: Convert ANNOTATE_INTRA_FUNCTION_CALL to ANNOTATE
objtool: Convert ANNOTATE_IGNORE_ALTERNATIVE to ANNOTATE
objtool: Convert VALIDATE_UNRET_BEGIN to ANNOTATE
objtool: Convert instrumentation_{begin,end}() to ANNOTATE
objtool: Convert ANNOTATE_RETPOLINE_SAFE to ANNOTATE
objtool: Convert ANNOTATE_NOENDBR to ANNOTATE
objtool: Generic annotation infrastructure
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| arch | ||
| block | ||
| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .clippy.toml | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| README | ||
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the reStructuredText markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.