7141 Commits
| Author | SHA1 | Message | Date |
|---|---|---|---|
Linus Torvalds
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e816da29bc |
selinux/stable-6.1 PR 20221003
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Merge tag 'selinux-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux
Pull SELinux updates from Paul Moore:
"Six SELinux patches, all are simple and easily understood, but a list
of the highlights is below:
- Use 'grep -E' instead of 'egrep' in the SELinux policy install
script.
Fun fact, this seems to be GregKH's *second* dedicated SELinux
patch since we transitioned to git (ignoring merges, the SPDX
stuff, and a trivial fs reference removal when lustre was yanked);
the first was back in 2011 when selinuxfs was placed in
/sys/fs/selinux. Oh, the memories ...
- Convert the SELinux policy boolean values to use signed integer
types throughout the SELinux kernel code.
Prior to this we were using a mix of signed and unsigned integers
which was probably okay in this particular case, but it is
definitely not a good idea in general.
- Remove a reference to the SELinux runtime disable functionality in
/etc/selinux/config as we are in the process of deprecating that.
See [1] for more background on this if you missed the previous
notes on the deprecation.
- Minor cleanups: remove unneeded variables and function parameter
constification"
Link: https://github.com/SELinuxProject/selinux-kernel/wiki/DEPRECATE-runtime-disable [1]
* tag 'selinux-pr-20221003' of git://git.kernel.org/pub/scm/linux/kernel/git/pcmoore/selinux:
selinux: remove runtime disable message in the install_policy.sh script
selinux: use "grep -E" instead of "egrep"
selinux: remove the unneeded result variable
selinux: declare read-only parameters const
selinux: use int arrays for boolean values
selinux: remove an unneeded variable in sel_make_class_dir_entries()
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Linus Torvalds
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d0989d01c6 |
hardening updates for v6.1-rc1
Various fixes across several hardening areas:
- loadpin: Fix verity target enforcement (Matthias Kaehlcke).
- zero-call-used-regs: Add missing clobbers in paravirt (Bill Wendling).
- CFI: clean up sparc function pointer type mismatches (Bart Van Assche).
- Clang: Adjust compiler flag detection for various Clang changes (Sami
Tolvanen, Kees Cook).
- fortify: Fix warnings in arch-specific code in sh, ARM, and xen.
Improvements to existing features:
- testing: improve overflow KUnit test, introduce fortify KUnit test,
add more coverage to LKDTM tests (Bart Van Assche, Kees Cook).
- overflow: Relax overflow type checking for wider utility.
New features:
- string: Introduce strtomem() and strtomem_pad() to fill a gap in
strncpy() replacement needs.
- um: Enable FORTIFY_SOURCE support.
- fortify: Enable run-time struct member memcpy() overflow warning.
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Merge tag 'hardening-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kernel hardening updates from Kees Cook:
"Most of the collected changes here are fixes across the tree for
various hardening features (details noted below).
The most notable new feature here is the addition of the memcpy()
overflow warning (under CONFIG_FORTIFY_SOURCE), which is the next step
on the path to killing the common class of "trivially detectable"
buffer overflow conditions (i.e. on arrays with sizes known at compile
time) that have resulted in many exploitable vulnerabilities over the
years (e.g. BleedingTooth).
This feature is expected to still have some undiscovered false
positives. It's been in -next for a full development cycle and all the
reported false positives have been fixed in their respective trees.
All the known-bad code patterns we could find with Coccinelle are also
either fixed in their respective trees or in flight.
The commit message in commit
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Linus Torvalds
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865dad2022 |
kcfi updates for v6.1-rc1
This replaces the prior support for Clang's standard Control Flow
Integrity (CFI) instrumentation, which has required a lot of special
conditions (e.g. LTO) and work-arounds. The current implementation
("Kernel CFI") is specific to C, directly designed for the Linux kernel,
and takes advantage of architectural features like x86's IBT. This
series retains arm64 support and adds x86 support. Additional "generic"
architectural support is expected soon:
https://github.com/samitolvanen/llvm-project/commits/kcfi_generic
- treewide: Remove old CFI support details
- arm64: Replace Clang CFI support with Clang KCFI support
- x86: Introduce Clang KCFI support
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Merge tag 'kcfi-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux
Pull kcfi updates from Kees Cook:
"This replaces the prior support for Clang's standard Control Flow
Integrity (CFI) instrumentation, which has required a lot of special
conditions (e.g. LTO) and work-arounds.
The new implementation ("Kernel CFI") is specific to C, directly
designed for the Linux kernel, and takes advantage of architectural
features like x86's IBT. This series retains arm64 support and adds
x86 support.
GCC support is expected in the future[1], and additional "generic"
architectural support is expected soon[2].
Summary:
- treewide: Remove old CFI support details
- arm64: Replace Clang CFI support with Clang KCFI support
- x86: Introduce Clang KCFI support"
Link: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=107048 [1]
Link: https://github.com/samitolvanen/llvm-project/commits/kcfi_generic [2]
* tag 'kcfi-v6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: (22 commits)
x86: Add support for CONFIG_CFI_CLANG
x86/purgatory: Disable CFI
x86: Add types to indirectly called assembly functions
x86/tools/relocs: Ignore __kcfi_typeid_ relocations
kallsyms: Drop CONFIG_CFI_CLANG workarounds
objtool: Disable CFI warnings
objtool: Preserve special st_shndx indexes in elf_update_symbol
treewide: Drop __cficanonical
treewide: Drop WARN_ON_FUNCTION_MISMATCH
treewide: Drop function_nocfi
init: Drop __nocfi from __init
arm64: Drop unneeded __nocfi attributes
arm64: Add CFI error handling
arm64: Add types to indirect called assembly functions
psci: Fix the function type for psci_initcall_t
lkdtm: Emit an indirect call for CFI tests
cfi: Add type helper macros
cfi: Switch to -fsanitize=kcfi
cfi: Drop __CFI_ADDRESSABLE
cfi: Remove CONFIG_CFI_CLANG_SHADOW
...
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Linus Torvalds
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8aebac8293 |
Rust introduction for v6.1-rc1
The initial support of Rust-for-Linux comes in roughly 4 areas: - Kernel internals (kallsyms expansion for Rust symbols, %pA format) - Kbuild infrastructure (Rust build rules and support scripts) - Rust crates and bindings for initial minimum viable build - Rust kernel documentation and samples Rust support has been in linux-next for a year and a half now, and the short log doesn't do justice to the number of people who have contributed both to the Linux kernel side but also to the upstream Rust side to support the kernel's needs. Thanks to these 173 people, and many more, who have been involved in all kinds of ways: Miguel Ojeda, Wedson Almeida Filho, Alex Gaynor, Boqun Feng, Gary Guo, Björn Roy Baron, Andreas Hindborg, Adam Bratschi-Kaye, Benno Lossin, Maciej Falkowski, Finn Behrens, Sven Van Asbroeck, Asahi Lina, FUJITA Tomonori, John Baublitz, Wei Liu, Geoffrey Thomas, Philip Herron, Arthur Cohen, David Faust, Antoni Boucher, Philip Li, Yujie Liu, Jonathan Corbet, Greg Kroah-Hartman, Paul E. McKenney, Josh Triplett, Kent Overstreet, David Gow, Alice Ryhl, Robin Randhawa, Kees Cook, Nick Desaulniers, Matthew Wilcox, Linus Walleij, Joe Perches, Michael Ellerman, Petr Mladek, Masahiro Yamada, Arnaldo Carvalho de Melo, Andrii Nakryiko, Konstantin Shelekhin, Rasmus Villemoes, Konstantin Ryabitsev, Stephen Rothwell, Andy Shevchenko, Sergey Senozhatsky, John Paul Adrian Glaubitz, David Laight, Nathan Chancellor, Jonathan Cameron, Daniel Latypov, Shuah Khan, Brendan Higgins, Julia Lawall, Laurent Pinchart, Geert Uytterhoeven, Akira Yokosawa, Pavel Machek, David S. Miller, John Hawley, James Bottomley, Arnd Bergmann, Christian Brauner, Dan Robertson, Nicholas Piggin, Zhouyi Zhou, Elena Zannoni, Jose E. Marchesi, Leon Romanovsky, Will Deacon, Richard Weinberger, Randy Dunlap, Paolo Bonzini, Roland Dreier, Mark Brown, Sasha Levin, Ted Ts'o, Steven Rostedt, Jarkko Sakkinen, Michal Kubecek, Marco Elver, Al Viro, Keith Busch, Johannes Berg, Jan Kara, David Sterba, Connor Kuehl, Andy Lutomirski, Andrew Lunn, Alexandre Belloni, Peter Zijlstra, Russell King, Eric W. Biederman, Willy Tarreau, Christoph Hellwig, Emilio Cobos Álvarez, Christian Poveda, Mark Rousskov, John Ericson, TennyZhuang, Xuanwo, Daniel Paoliello, Manish Goregaokar, comex, Josh Stone, Stephan Sokolow, Philipp Krones, Guillaume Gomez, Joshua Nelson, Mats Larsen, Marc Poulhiès, Samantha Miller, Esteban Blanc, Martin Schmidt, Martin Rodriguez Reboredo, Daniel Xu, Viresh Kumar, Bartosz Golaszewski, Vegard Nossum, Milan Landaverde, Dariusz Sosnowski, Yuki Okushi, Matthew Bakhtiari, Wu XiangCheng, Tiago Lam, Boris-Chengbiao Zhou, Sumera Priyadarsini, Viktor Garske, Niklas Mohrin, Nándor István Krácser, Morgan Bartlett, Miguel Cano, Léo Lanteri Thauvin, Julian Merkle, Andreas Reindl, Jiapeng Chong, Fox Chen, Douglas Su, Antonio Terceiro, SeongJae Park, Sergio González Collado, Ngo Iok Ui (Wu Yu Wei), Joshua Abraham, Milan, Daniel Kolsoi, ahomescu, Manas, Luis Gerhorst, Li Hongyu, Philipp Gesang, Russell Currey, Jalil David Salamé Messina, Jon Olson, Raghvender, Angelos, Kaviraj Kanagaraj, Paul Römer, Sladyn Nunes, Mauro Baladés, Hsiang-Cheng Yang, Abhik Jain, Hongyu Li, Sean Nash, Yuheng Su, Peng Hao, Anhad Singh, Roel Kluin, Sara Saa, Geert Stappers, Garrett LeSage, IFo Hancroft, and Linus Torvalds. -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmM4WcIWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJlGrD/93HbmxjNi/hwdWF5UdWV1/W0kJ bSTh9JsNtN9atQGEUwxePBjrtxHE75lxSL0RJ+sWvaJ7vR3iv2qys+cEgU0ePrgX INZ3bvHAGgvPG1b0R6VxmakksHq1BdCDbCT3Ft5lSNxB0uQBi95KgjtR0lCH/NUl eoZnGJ0ZbKs5KpbzFqOjM2gmJ51geZppnfNFmbKOb3lSUpPQqhZLPDCzweE57GNo e2vcMoY4daVaSUxmo01TSEphrM5IjDxp5rs09+aeovfmpbeoiz33siyGiAxyM7CI +Ybxl+bBnyqXLadjbs9VvvtYzASFZgmrQdwIQbY8j/sqsw34jmZarOwa5iUVmo+Q 2w1CDDNLMG3XpI/PdnUklFRIJg1uYCM+OXgZY2MFFqzbjoik/zFv2qFWTp1F5+XV DdLxoN9quBPDSVDFQjAZPsyCD/pSRfiJYh9s7BdlhUPL6rk9uLIgZyZuPqy3kWXn 2Z02lWJpiHUtTaICdUDyNPFzTggDHEfY2DvmuedXpsyhlMkCdtFS5zoo/evl8pb6 xUV7qdfpjyLyTLmLWjYEVRO6DJJuFQWMK5Qpqn6O0y3wch3XV+At5QDk2TE2WMvB cYwd9nCqcMs7J0HrdoDmtLwew1jrLd1xefqDgD0zd6B/+Dk9W4gFD69Stmtarg7d KGRvH0wnL0keMxy31w== =zz09 -----END PGP SIGNATURE----- Merge tag 'rust-v6.1-rc1' of https://github.com/Rust-for-Linux/linux Pull Rust introductory support from Kees Cook: "The tree has a recent base, but has fundamentally been in linux-next for a year and a half[1]. It's been updated based on feedback from the Kernel Maintainer's Summit, and to gain recent Reviewed-by: tags. Miguel is the primary maintainer, with me helping where needed/wanted. Our plan is for the tree to switch to the standard non-rebasing practice once this initial infrastructure series lands. The contents are the absolute minimum to get Rust code building in the kernel, with many more interfaces[2] (and drivers - NVMe[3], 9p[4], M1 GPU[5]) on the way. The initial support of Rust-for-Linux comes in roughly 4 areas: - Kernel internals (kallsyms expansion for Rust symbols, %pA format) - Kbuild infrastructure (Rust build rules and support scripts) - Rust crates and bindings for initial minimum viable build - Rust kernel documentation and samples Rust support has been in linux-next for a year and a half now, and the short log doesn't do justice to the number of people who have contributed both to the Linux kernel side but also to the upstream Rust side to support the kernel's needs. Thanks to these 173 people, and many more, who have been involved in all kinds of ways: Miguel Ojeda, Wedson Almeida Filho, Alex Gaynor, Boqun Feng, Gary Guo, Björn Roy Baron, Andreas Hindborg, Adam Bratschi-Kaye, Benno Lossin, Maciej Falkowski, Finn Behrens, Sven Van Asbroeck, Asahi Lina, FUJITA Tomonori, John Baublitz, Wei Liu, Geoffrey Thomas, Philip Herron, Arthur Cohen, David Faust, Antoni Boucher, Philip Li, Yujie Liu, Jonathan Corbet, Greg Kroah-Hartman, Paul E. McKenney, Josh Triplett, Kent Overstreet, David Gow, Alice Ryhl, Robin Randhawa, Kees Cook, Nick Desaulniers, Matthew Wilcox, Linus Walleij, Joe Perches, Michael Ellerman, Petr Mladek, Masahiro Yamada, Arnaldo Carvalho de Melo, Andrii Nakryiko, Konstantin Shelekhin, Rasmus Villemoes, Konstantin Ryabitsev, Stephen Rothwell, Andy Shevchenko, Sergey Senozhatsky, John Paul Adrian Glaubitz, David Laight, Nathan Chancellor, Jonathan Cameron, Daniel Latypov, Shuah Khan, Brendan Higgins, Julia Lawall, Laurent Pinchart, Geert Uytterhoeven, Akira Yokosawa, Pavel Machek, David S. Miller, John Hawley, James Bottomley, Arnd Bergmann, Christian Brauner, Dan Robertson, Nicholas Piggin, Zhouyi Zhou, Elena Zannoni, Jose E. Marchesi, Leon Romanovsky, Will Deacon, Richard Weinberger, Randy Dunlap, Paolo Bonzini, Roland Dreier, Mark Brown, Sasha Levin, Ted Ts'o, Steven Rostedt, Jarkko Sakkinen, Michal Kubecek, Marco Elver, Al Viro, Keith Busch, Johannes Berg, Jan Kara, David Sterba, Connor Kuehl, Andy Lutomirski, Andrew Lunn, Alexandre Belloni, Peter Zijlstra, Russell King, Eric W. Biederman, Willy Tarreau, Christoph Hellwig, Emilio Cobos Álvarez, Christian Poveda, Mark Rousskov, John Ericson, TennyZhuang, Xuanwo, Daniel Paoliello, Manish Goregaokar, comex, Josh Stone, Stephan Sokolow, Philipp Krones, Guillaume Gomez, Joshua Nelson, Mats Larsen, Marc Poulhiès, Samantha Miller, Esteban Blanc, Martin Schmidt, Martin Rodriguez Reboredo, Daniel Xu, Viresh Kumar, Bartosz Golaszewski, Vegard Nossum, Milan Landaverde, Dariusz Sosnowski, Yuki Okushi, Matthew Bakhtiari, Wu XiangCheng, Tiago Lam, Boris-Chengbiao Zhou, Sumera Priyadarsini, Viktor Garske, Niklas Mohrin, Nándor István Krácser, Morgan Bartlett, Miguel Cano, Léo Lanteri Thauvin, Julian Merkle, Andreas Reindl, Jiapeng Chong, Fox Chen, Douglas Su, Antonio Terceiro, SeongJae Park, Sergio González Collado, Ngo Iok Ui (Wu Yu Wei), Joshua Abraham, Milan, Daniel Kolsoi, ahomescu, Manas, Luis Gerhorst, Li Hongyu, Philipp Gesang, Russell Currey, Jalil David Salamé Messina, Jon Olson, Raghvender, Angelos, Kaviraj Kanagaraj, Paul Römer, Sladyn Nunes, Mauro Baladés, Hsiang-Cheng Yang, Abhik Jain, Hongyu Li, Sean Nash, Yuheng Su, Peng Hao, Anhad Singh, Roel Kluin, Sara Saa, Geert Stappers, Garrett LeSage, IFo Hancroft, and Linus Torvalds" Link: https://lwn.net/Articles/849849/ [1] Link: https://github.com/Rust-for-Linux/linux/commits/rust [2] Link: |
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Linus Torvalds
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f3dfe925f9 |
There's not a huge amount of activity in the docs tree this time around,
but a few significant changes even so:
- A complete rewriting of the top-level index.rst file, which mostly
reflects itself in a redone top page in the HTML-rendered docs. The hope
is that the new organization will be a friendlier starting point for
both users and developers.
- Some math-rendering improvements.
- A coding-style.rst update on the use of BUG() and WARN()
- A big maintainer-PHP guide update.
- Some code-of-conduct updates
- More Chinese translation work
Plus the usual pile of typo fixes, corrections, and updates.
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Merge tag 'docs-6.1' of git://git.lwn.net/linux
Pull documentation updates from Jonathan Corbet:
"There's not a huge amount of activity in the docs tree this time
around, but a few significant changes even so:
- A complete rewriting of the top-level index.rst file, which mostly
reflects itself in a redone top page in the HTML-rendered docs. The
hope is that the new organization will be a friendlier starting
point for both users and developers.
- Some math-rendering improvements.
- A coding-style.rst update on the use of BUG() and WARN()
- A big maintainer-PHP guide update.
- Some code-of-conduct updates
- More Chinese translation work
Plus the usual pile of typo fixes, corrections, and updates"
* tag 'docs-6.1' of git://git.lwn.net/linux: (66 commits)
checkpatch: warn on usage of VM_BUG_ON() and other BUG variants
coding-style.rst: document BUG() and WARN() rules ("do not crash the kernel")
Documentation: devres: add missing IO helper
Documentation: devres: update IRQ helper
Documentation/mm: modify page_referenced to folio_referenced
Documentation/CoC: Reflect current CoC interpretation and practices
docs/doc-guide: Add documentation on SPHINX_IMGMATH
docs: process/5.Posting.rst: clarify use of Reported-by: tag
docs, kprobes: Fix the wrong location of Kprobes
docs: add a man-pages link to the front page
docs: put atomic*.txt and memory-barriers.txt into the core-api book
docs: move asm-annotations.rst into core-api
docs: remove some index.rst cruft
docs: reconfigure the HTML left column
docs: Rewrite the front page
docs: promote the title of process/index.rst
Documentation: devres: add missing SPI helper
Documentation: devres: add missing PINCTRL helpers
docs: hugetlbpage.rst: fix a typo of hugepage size
docs/zh_CN: Add new translation of admin-guide/bootconfig.rst
...
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Sami Tolvanen
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2120635108 |
Makefile.extrawarn: Move -Wcast-function-type-strict to W=1
We enable -Wcast-function-type globally in the kernel to warn about mismatching types in function pointer casts. Compilers currently warn only about ABI incompability with this flag, but Clang 16 will enable a stricter version of the check by default that checks for an exact type match. This will be very noisy in the kernel, so disable -Wcast-function-type-strict without W=1 until the new warnings have been addressed. Cc: stable@vger.kernel.org Link: https://reviews.llvm.org/D134831 Link: https://github.com/ClangBuiltLinux/linux/issues/1724 Suggested-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220930203310.4010564-1-samitolvanen@google.com |
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David Hildenbrand
|
69d517e6e2 |
checkpatch: warn on usage of VM_BUG_ON() and other BUG variants
checkpatch does not point out that VM_BUG_ON() and friends should be
avoided, however, Linus notes:
VM_BUG_ON() has the exact same semantics as BUG_ON. It is literally
no different, the only difference is "we can make the code smaller
because these are less important". [1]
So let's warn on VM_BUG_ON() and other BUG variants as well. While at it,
make it clearer that the kernel really shouldn't be crashed.
As there are some subsystem BUG macros that actually don't end up crashing
the kernel -- for example, KVM_BUG_ON() -- exclude these manually.
[1] https://lore.kernel.org/r/CAHk-=wg40EAZofO16Eviaj7mfqDhZ2gVEbvfsMf6gYzspRjYvw@mail.gmail.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Link: https://lore.kernel.org/r/20220923113426.52871-3-david@redhat.com
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
|
|
Jonathan Corbet
|
f4bf1cd4ac |
docs: move asm-annotations.rst into core-api
This one file should not really be in the top-level documentation directory. core-api/ may not be a perfect fit but seems to be best, so move it there. Adjust a couple of internal document references to make them location-independent, and point checkpatch.pl at the new location. Cc: Jiri Slaby <jirislaby@kernel.org> Cc: Joe Perches <joe@perches.com> Reviewed-by: David Vernet <void@manifault.com> Acked-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jonathan Corbet <corbet@lwn.net> Acked-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20220927160559.97154-6-corbet@lwn.net Signed-off-by: Jonathan Corbet <corbet@lwn.net> |
|
Miguel Ojeda
|
094981352c |
x86: enable initial Rust support
Note that only x86_64 is covered and not all features nor mitigations are handled, but it is enough as a starting point and showcases the basics needed to add Rust support for a new architecture. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: David Gow <davidgow@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
2f7ab1267d |
Kbuild: add Rust support
Having most of the new files in place, we now enable Rust support in the build system, including `Kconfig` entries related to Rust, the Rust configuration printer and a few other bits. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Tested-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Finn Behrens <me@kloenk.de> Signed-off-by: Finn Behrens <me@kloenk.de> Co-developed-by: Adam Bratschi-Kaye <ark.email@gmail.com> Signed-off-by: Adam Bratschi-Kaye <ark.email@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: Michael Ellerman <mpe@ellerman.id.au> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Co-developed-by: Sven Van Asbroeck <thesven73@gmail.com> Signed-off-by: Sven Van Asbroeck <thesven73@gmail.com> Co-developed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Gary Guo <gary@garyguo.net> Co-developed-by: Boris-Chengbiao Zhou <bobo1239@web.de> Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de> Co-developed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Co-developed-by: Douglas Su <d0u9.su@outlook.com> Signed-off-by: Douglas Su <d0u9.su@outlook.com> Co-developed-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl> Signed-off-by: Dariusz Sosnowski <dsosnowski@dsosnowski.pl> Co-developed-by: Antonio Terceiro <antonio.terceiro@linaro.org> Signed-off-by: Antonio Terceiro <antonio.terceiro@linaro.org> Co-developed-by: Daniel Xu <dxu@dxuuu.xyz> Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Co-developed-by: Björn Roy Baron <bjorn3_gh@protonmail.com> Signed-off-by: Björn Roy Baron <bjorn3_gh@protonmail.com> Co-developed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Signed-off-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
|
Daniel Xu
|
e4b69cb9a9 |
scripts: add `is_rust_module.sh`
This script is used to detect whether a kernel module is written in Rust. It will later be used to disable BTF generation on Rust modules as BTF does not yet support Rust. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Daniel Xu <dxu@dxuuu.xyz> Co-developed-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
78521f3399 |
scripts: add `rust_is_available.sh`
This script tests whether the Rust toolchain requirements are in place to enable Rust support. It uses `min-tool-version.sh` to fetch the version numbers. The build system will call it to set `CONFIG_RUST_IS_AVAILABLE` in a later patch. It also has an option (`-v`) to explain what is missing, which is useful to set up the development environment. This is used via the `make rustavailable` target added in a later patch. Reviewed-by: Kees Cook <keescook@chromium.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: Finn Behrens <me@kloenk.de> Signed-off-by: Finn Behrens <me@kloenk.de> Co-developed-by: Miguel Cano <macanroj@gmail.com> Signed-off-by: Miguel Cano <macanroj@gmail.com> Co-developed-by: Tiago Lam <tiagolam@gmail.com> Signed-off-by: Tiago Lam <tiagolam@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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Miguel Ojeda
|
9a8ff24ce5 |
scripts: add `generate_rust_target.rs`
This script takes care of generating the custom target specification file for `rustc`, based on the kernel configuration. It also serves as an example of a Rust host program. A dummy architecture is kept in this patch so that a later patch adds x86 support on top with as few changes as possible. Reviewed-by: Kees Cook <keescook@chromium.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: David Gow <davidgow@google.com> Signed-off-by: David Gow <davidgow@google.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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Miguel Ojeda
|
8c4555ccc5 |
scripts: add `generate_rust_analyzer.py`
The `generate_rust_analyzer.py` script generates the configuration file (`rust-project.json`) for rust-analyzer. rust-analyzer is a modular compiler frontend for the Rust language. It provides an LSP server which can be used in editors such as VS Code, Emacs or Vim. Reviewed-by: Kees Cook <keescook@chromium.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Finn Behrens <me@kloenk.de> Signed-off-by: Finn Behrens <me@kloenk.de> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Gary Guo <gary@garyguo.net> Co-developed-by: Boris-Chengbiao Zhou <bobo1239@web.de> Signed-off-by: Boris-Chengbiao Zhou <bobo1239@web.de> Co-developed-by: Björn Roy Baron <bjorn3_gh@protonmail.com> Signed-off-by: Björn Roy Baron <bjorn3_gh@protonmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
99115db4ec |
scripts: decode_stacktrace: demangle Rust symbols
Recent versions of both Binutils (`c++filt`) and LLVM (`llvm-cxxfilt`) provide Rust v0 mangling support. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
d1d84b5f73 |
scripts: checkpatch: enable language-independent checks for Rust
Include Rust in the "source code files" category, so that the language-independent tests are checked for Rust too, and teach `checkpatch` about the comment style for Rust files. This enables the malformed SPDX check, the misplaced SPDX license tag check, the long line checks, the lines without a newline check and the embedded filename check. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
de48fa1a01 |
scripts: checkpatch: diagnose uses of `%pA` in the C side as errors
The `%pA` format specifier is only intended to be used from Rust.
`checkpatch.pl` already gives a warning for invalid specificers:
WARNING: Invalid vsprintf pointer extension '%pA'
This makes it an error and introduces an explanatory message:
ERROR: Invalid vsprintf pointer extension '%pA' - '%pA' is only intended to be used from Rust code
Suggested-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Joe Perches <joe@perches.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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|
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Miguel Ojeda
|
b8a94bfb33 |
kallsyms: increase maximum kernel symbol length to 512
Rust symbols can become quite long due to namespacing introduced
by modules, types, traits, generics, etc. For instance,
the following code:
pub mod my_module {
pub struct MyType;
pub struct MyGenericType<T>(T);
pub trait MyTrait {
fn my_method() -> u32;
}
impl MyTrait for MyGenericType<MyType> {
fn my_method() -> u32 {
42
}
}
}
generates a symbol of length 96 when using the upcoming v0 mangling scheme:
_RNvXNtCshGpAVYOtgW1_7example9my_moduleINtB2_13MyGenericTypeNtB2_6MyTypeENtB2_7MyTrait9my_method
At the moment, Rust symbols may reach up to 300 in length.
Setting 512 as the maximum seems like a reasonable choice to
keep some headroom.
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Petr Mladek <pmladek@suse.com>
Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com>
Co-developed-by: Gary Guo <gary@garyguo.net>
Signed-off-by: Gary Guo <gary@garyguo.net>
Co-developed-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
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|
|
Miguel Ojeda
|
73bbb94466 |
kallsyms: support "big" kernel symbols
Rust symbols can become quite long due to namespacing introduced by modules, types, traits, generics, etc. Increasing to 255 is not enough in some cases, therefore introduce longer lengths to the symbol table. In order to avoid increasing all lengths to 2 bytes (since most of them are small, including many Rust ones), use ULEB128 to keep smaller symbols in 1 byte, with the rest in 2 bytes. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Alex Gaynor <alex.gaynor@gmail.com> Signed-off-by: Alex Gaynor <alex.gaynor@gmail.com> Co-developed-by: Wedson Almeida Filho <wedsonaf@google.com> Signed-off-by: Wedson Almeida Filho <wedsonaf@google.com> Co-developed-by: Gary Guo <gary@garyguo.net> Signed-off-by: Gary Guo <gary@garyguo.net> Co-developed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Co-developed-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
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|
Miguel Ojeda
|
6e8c5bbd5e |
kallsyms: add static relationship between `KSYM_NAME_LEN{,_BUFFER}`
This adds a static assert to ensure `KSYM_NAME_LEN_BUFFER` gets updated when `KSYM_NAME_LEN` changes. The relationship used is one that keeps the new size (512+1) close to the original buffer size (500). Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Co-developed-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
|
Boqun Feng
|
b471927ebf |
kallsyms: avoid hardcoding buffer size
This introduces `KSYM_NAME_LEN_BUFFER` in place of the previously hardcoded size of the input buffer. It will also make it easier to update the size in a single place in a later patch. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Co-developed-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
|
|
Boqun Feng
|
b66c874fdb |
kallsyms: use `ARRAY_SIZE` instead of hardcoded size
This removes one place where the `500` constant is hardcoded. Reviewed-by: Kees Cook <keescook@chromium.org> Reviewed-by: Geert Stappers <stappers@stappers.nl> Reviewed-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Boqun Feng <boqun.feng@gmail.com> Co-developed-by: Miguel Ojeda <ojeda@kernel.org> Signed-off-by: Miguel Ojeda <ojeda@kernel.org> |
|
|
Sami Tolvanen
|
8924560094 |
cfi: Switch to -fsanitize=kcfi
Switch from Clang's original forward-edge control-flow integrity implementation to -fsanitize=kcfi, which is better suited for the kernel, as it doesn't require LTO, doesn't use a jump table that requires altering function references, and won't break cross-module function address equality. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Kees Cook <keescook@chromium.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220908215504.3686827-6-samitolvanen@google.com |
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|
Sami Tolvanen
|
d0f9562ee4 |
scripts/kallsyms: Ignore __kcfi_typeid_
The compiler generates __kcfi_typeid_ symbols for annotating assembly functions with type information. These are constants that can be referenced in assembly code and are resolved by the linker. Ignore them in kallsyms. Signed-off-by: Sami Tolvanen <samitolvanen@google.com> Reviewed-by: Kees Cook <keescook@chromium.org> Tested-by: Kees Cook <keescook@chromium.org> Tested-by: Nathan Chancellor <nathan@kernel.org> Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org> Tested-by: Peter Zijlstra (Intel) <peterz@infradead.org> Signed-off-by: Kees Cook <keescook@chromium.org> Link: https://lore.kernel.org/r/20220908215504.3686827-3-samitolvanen@google.com |
|
Nick Desaulniers
|
32ef9e5054 |
Makefile.debug: re-enable debug info for .S files
Alexey reported that the fraction of unknown filename instances in kallsyms grew from ~0.3% to ~10% recently; Bill and Greg tracked it down to assembler defined symbols, which regressed as a result of: commit |
|
|
Nick Desaulniers
|
61f2b7c749 |
Makefile.debug: set -g unconditional on CONFIG_DEBUG_INFO_SPLIT
Dmitrii, Fangrui, and Mashahiro note:
Before GCC 11 and Clang 12 -gsplit-dwarf implicitly uses -g2.
Fix CONFIG_DEBUG_INFO_SPLIT for gcc-11+ & clang-12+ which now need -g
specified in order for -gsplit-dwarf to work at all.
-gsplit-dwarf has been mutually exclusive with -g since support for
CONFIG_DEBUG_INFO_SPLIT was introduced in
commit
|
|
Zeng Heng
|
03764b30a4 |
Kconfig: remove unused function 'menu_get_root_menu'
There is nowhere calling `menu_get_root_menu` function, so remove it. Signed-off-by: Zeng Heng <zengheng4@huawei.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
|
yangxingwu
|
237fe72749 |
scripts/clang-tools: remove unused module
Remove unused imported 'os' module. Signed-off-by: yangxingwu <xingwu.yang@gmail.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
|
Paul Moore
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2fe2fb4ce6 |
selinux: remove runtime disable message in the install_policy.sh script
We are in the process of deprecating the runtime disable mechanism, let's not reference it in the scripts. Signed-off-by: Paul Moore <paul@paul-moore.com> |
|
Greg Kroah-Hartman
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c969bb8dba |
selinux: use "grep -E" instead of "egrep"
The latest version of grep claims that egrep is now obsolete so the build now contains warnings that look like: egrep: warning: egrep is obsolescent; using grep -E fix this by using "grep -E" instead. Cc: Paul Moore <paul@paul-moore.com> Cc: Stephen Smalley <stephen.smalley.work@gmail.com> Cc: Eric Paris <eparis@parisplace.org> Cc: selinux@vger.kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> [PM: tweak to remove vdso reference, cleanup subj line] Signed-off-by: Paul Moore <paul@paul-moore.com> |
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Linus Torvalds
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4ed9c1e971 |
Kbuild fixes for v6.0 (2nd)
- Remove unused scripts/gcc-ld script - Add zstd support to scripts/extract-ikconfig - Check 'make headers' for UML - Fix scripts/mksysmap to ignore local symbols -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmMd0iwVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGxpkP/ivD5efMSqNKGU1gRLsWXlTdF28k x1UDLo2q43ylzNemE8NARnDHZhcEp4u/92U7Iwkc5tc+MgMCSRPr1klcdPf5PgwN GSXHIaWgoN3wn2/8BgFhM6UUddqCkKnGDItfsKumQn70Q5KH1n1ht7Cei5KDI5nY YmPWaIaKY9eILOTLAVo0UcyoGgX8s9gQyZ8oQr7zRAQjYhjTrb0C9B5aym5PeKOF MTUjZpJOMUZcYVEv3y+4X9Dwxlx4Tj3PggijBPIRc/O8AagWRBju3GY5jpKbuR/q vavdhBVe+1Obo9qzh1/sioSvbRdortr8xiwNFhlYelsr5JIasGPjXEZVElRJhwql Dh+g03GdSTnBwJEWrca7ArbWJ43ODVJyhQggSmhaPj8MYsUKcbL6OK1wq1PZWHxn lDDriBJ9zYFIefzZnMnMn6uDzoKBn6eErI4svPtCDoNe6YooJQpDwFTgD/P8JKmW ektGEeee5OUbKCNyxtBhMIYgIhIdbdtwPSTwaq3+Kwc+PXRD+9Ohofswq/cu6rkT 0lA9o+zflMLzqK6TRS35In2cJkgGGVas4UVrjR2vLuLHtwleDXKqeLo4oWyp3xno voaNUtT2IYCcX/v7f80OTw4i2B3AbdxK6g0+75VbsONxEsx+RWUM4URJJYiFoTPt 6B3329tK59GNtFF+ =FJba -----END PGP SIGNATURE----- Merge tag 'kbuild-fixes-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Remove unused scripts/gcc-ld script - Add zstd support to scripts/extract-ikconfig - Check 'make headers' for UML - Fix scripts/mksysmap to ignore local symbols * tag 'kbuild-fixes-v6.0-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: mksysmap: Fix the mismatch of 'L0' symbols in System.map kbuild: disable header exports for UML in a straightforward way scripts/extract-ikconfig: add zstd compression support scripts: remove obsolete gcc-ld script |
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Youling Tang
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c17a253870 |
mksysmap: Fix the mismatch of 'L0' symbols in System.map
When System.map was generated, the kernel used mksysmap to filter the kernel symbols, we need to filter "L0" symbols in LoongArch architecture. $ cat System.map | grep L0 9000000000221540 t L0 The L0 symbol exists in System.map, but not in .tmp_System.map. When "cmp -s System.map .tmp_System.map" will show "Inconsistent kallsyms data" error message in link-vmlinux.sh script. Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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Nick Desaulniers
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b0839b281c |
Makefile.extrawarn: re-enable -Wformat for clang; take 2
-Wformat was recently re-enabled for builds with clang, then quickly re-disabled, due to concerns stemming from the frequency of default argument promotion related warning instances. commit |
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Thitat Auareesuksakul
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c11efc57d4 |
scripts/extract-ikconfig: add zstd compression support
Add extract-ikconfig support for kernel images compressed with zstd. Signed-off-by: Thitat Auareesuksakul <thitat@flux.ci> Tested-by: Nicolas Schier <n.schier@avm.de> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
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Lukas Bulwahn
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86879fd277 |
scripts: remove obsolete gcc-ld script
Since commit
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|
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Nick Desaulniers
|
a0a12c3ed0 |
asm goto: eradicate CC_HAS_ASM_GOTO
GCC has supported asm goto since 4.5, and Clang has since version 9.0.0. The minimum supported versions of these tools for the build according to Documentation/process/changes.rst are 5.1 and 11.0.0 respectively. Remove the feature detection script, Kconfig option, and clean up some fallback code that is no longer supported. The removed script was also testing for a GCC specific bug that was fixed in the 4.7 release. Also remove workarounds for bpftrace using clang older than 9.0.0, since other BPF backend fixes are required at this point. Link: https://lore.kernel.org/lkml/CAK7LNATSr=BXKfkdW8f-H5VT_w=xBpT2ZQcZ7rm6JfkdE+QnmA@mail.gmail.com/ Link: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=48637 Acked-by: Borislav Petkov <bp@suse.de> Suggested-by: Masahiro Yamada <masahiroy@kernel.org> Suggested-by: Alexei Starovoitov <alexei.starovoitov@gmail.com> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Ingo Molnar <mingo@kernel.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
|
|
Linus Torvalds
|
15b3f48a43 |
Kbuild fixes for v6.0
- Fix module versioning broken on some architectures - Make dummy-tools enable CONFIG_PPC_LONG_DOUBLE_128 - Remove -Wformat-zero-length, which has no warning instance - Fix the order between drivers and libs in modules.order - Fix false-positive warnings in clang-analyzer -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmMBIU4VHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsGOQ8P/2Utxt5AJKZlwpW6kXDHWg5z9pXr wxZmevYPHPawIKMdNVbluhNejehHrtRahWNdU+daXpVllOWoOig9wW79ZxoNJvXj 0WxI02wI0oqU97vOGtD8R4+ZvoC6AMdLeAwlPOI1Bm3ZEPb5s0CdbBDDjEeUrNCa SvJQ8uIghzJqnQVSs743VyFg5p6tJxhkAUgZZo+I+KfcTJxgjs7XbkgMcbyAJ6WC p/s9i+sJcgP8dL59ffmIrdv3AQx6YYw8tUahupDkr+++V6VvxXvVDbrrej1jNVg4 h//doEzfTKDB90jI6BDw0WzEcQfe09ALkh2yvIdR2d9G1ogZ+PC6kUgbJKegx86r FRlAyi8ntMVOzV3JtNRUfxQb5/j35v8a8B37VD9YTEROGIqGU3gW6olmCdN9vA8s 8HVOZOHIgIrRT7L5cUGfOC0eoloPdpAo1usMzS8zsegqlhr/inDIDnZKjD5vepAx LdEpfkGTkcMB1Sp5YjVbKJj7rQk9x0nyJh306MhMSkJYd2SgI7Xuvt1UOzWa98Sz oLYbjbLKKRix8jLfQ9AohQSL4KeJazbdJ6B6umgDGz+ZvxxTPM3MQt+H3YcOctBy 0wLyxSGqZloVyF1DCNvvwP55psuX2cSFMB4bsKg1pqlymxlDjAGII5aUrofSY0w8 a8MYKgntjNHZndaT =jk33 -----END PGP SIGNATURE----- Merge tag 'kbuild-fixes-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild fixes from Masahiro Yamada: - Fix module versioning broken on some architectures - Make dummy-tools enable CONFIG_PPC_LONG_DOUBLE_128 - Remove -Wformat-zero-length, which has no warning instance - Fix the order between drivers and libs in modules.order - Fix false-positive warnings in clang-analyzer * tag 'kbuild-fixes-v6.0' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: scripts/clang-tools: Remove DeprecatedOrUnsafeBufferHandling check kbuild: fix the modules order between drivers and libs scripts/Makefile.extrawarn: Do not disable clang's -Wformat-zero-length kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__ modpost: fix module versioning when a symbol lacks valid CRC |
|
Guru Das Srinagesh
|
4be72c1b9f |
scripts/clang-tools: Remove DeprecatedOrUnsafeBufferHandling check
This `clang-analyzer` check flags the use of memset(), suggesting a more secure version of the API, such as memset_s(), which does not exist in the kernel: warning: Call to function 'memset' is insecure as it does not provide security checks introduced in the C11 standard. Replace with analogous functions that support length arguments or provides boundary checks such as 'memset_s' in case of C11 [clang-analyzer-security.insecureAPI.DeprecatedOrUnsafeBufferHandling] Signed-off-by: Guru Das Srinagesh <quic_gurus@quicinc.com> Reviewed-by: Nick Desaulniers <ndesaulniers@google.com> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
|
Nathan Chancellor
|
370655bc18 |
scripts/Makefile.extrawarn: Do not disable clang's -Wformat-zero-length
There are no instances of this warning in the tree across several
difference architectures and configurations. This was added by
commit
|
|
Jiri Slaby
|
0df499eaf3 |
kbuild: dummy-tools: pretend we understand __LONG_DOUBLE_128__
There is a test in powerpc's Kconfig which checks __LONG_DOUBLE_128__ and sets CONFIG_PPC_LONG_DOUBLE_128 if it is understood by the compiler. We currently don't handle it, so this results in PPC_LONG_DOUBLE_128 not being in super-config generated by dummy-tools. So take this into account in the gcc script and preprocess __LONG_DOUBLE_128__ as "1". Signed-off-by: Jiri Slaby <jslaby@suse.cz> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org> |
|
Masahiro Yamada
|
5b8a9a8fd1 |
modpost: fix module versioning when a symbol lacks valid CRC
Since commit |
|
|
Linus Torvalds
|
e45c890140 |
hardening fixes for v6.0-rc2
- Also undef LATENT_ENTROPY_PLUGIN for per-file disabling (Andrew Donnellan) - Return EFAULT on copy_from_user() failures in LoadPin (Kees Cook) -----BEGIN PGP SIGNATURE----- iQJKBAABCgA0FiEEpcP2jyKd1g9yPm4TiXL039xtwCYFAmL/3ZkWHGtlZXNjb29r QGNocm9taXVtLm9yZwAKCRCJcvTf3G3AJvxaD/wJ97P0RoPm4RR51I7Eel6SoGt9 bKI93m5xRH754sRJvkoeP9lEj3piHDP0TB3cs4uJUkbGe8NqOHPwXdhJqqo4T4UR 4lOsXI40gCiC9MaEXh3mOThppN4RJKH+x186AZGszo4XtkYfvw8xWVXPAOy1hxUD /A5GO9zWATwGe08NpZv+Ldulyy+wYl+FBgG9agvRoGvKrxV4pJsI8jujYBSzIyui 1dvhGohgVBty+YRcc6dv968c0iii3ZyHlnDeUxSeqZJTUM+7mE523fowOHik2WRX K1V02tPeKUJhfkJoWvav1mlkiPsFQBvpqinEylSBrBkU0zz17PaIF9vWmE3QASs/ z1gSz0q6W/+jGzPpCR0hQdwRbmEhA7/ojJ8gxnY5Yex7FwxKlmKF+H0taMzUbP8o 9k2j40yCT/gt1MnN1RFgpgsN+h6jsnMJvK5nPg1I4D7cvjUrGgua+G+oKzc225Nx Uf4gbVhhXjx0lkh7yR4m6EM7+OFmnItG3nQu7bYP5Fg9m6PHGrcSvlHca55clM6S 7j4SXQ07o3Eu8prmlirCBgbkOhlosh51tA/yq5fH0sqp+7U08p8Jp0M+qb00F6Y8 +uHTKiIpsddDt5t0sKyByKuCKEhMpwY6eDABXLfwuWIHscMEdsjKihTFbbGp9JSS 6SkoEjgo1T/fEgUmhw== =lHoM -----END PGP SIGNATURE----- Merge tag 'hardening-v6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux Pull hardening fixes from Kees Cook: - Also undef LATENT_ENTROPY_PLUGIN for per-file disabling (Andrew Donnellan) - Return EFAULT on copy_from_user() failures in LoadPin (Kees Cook) * tag 'hardening-v6.0-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file LoadPin: Return EFAULT on copy_from_user() failures |
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Andrew Donnellan
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012e8d2034 |
gcc-plugins: Undefine LATENT_ENTROPY_PLUGIN when plugin disabled for a file
Commit |
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Linus Torvalds
|
69dac8e431 |
RISC-V Patches for the 5.20 Merge Window, Part 2
There's still a handful of new features in here, but there are a lot of
fixes/cleanups as well:
* Support for the Zicbom for explicit cache-block management, along with
the necessary bits to make the non-standard cache management ops on
the Allwinner D1 function.
* Support for the Zihintpause extension, which codifies a go-slow
instruction used for cpu_relax().
* Support for the Sstc extension for supervisor-mode timer/counter
management.
* Many device tree fixes and cleanups, including a large set for the
Canaan device trees.
* A handful of fixes and cleanups for the PMU driver.
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Merge tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux
Pull more RISC-V updates from Palmer Dabbelt:
"There's still a handful of new features in here, but there are a lot
of fixes/cleanups as well:
- Support for the Zicbom extension for explicit cache-block
management, along with the necessary bits to make the non-standard
cache management ops on the Allwinner D1 function
- Support for the Zihintpause extension, which codifies a go-slow
instruction used for cpu_relax()
- Support for the Sstc extension for supervisor-mode timer/counter
management
- Many device tree fixes and cleanups, including a large set for the
Canaan device trees
- A handful of fixes and cleanups for the PMU driver"
* tag 'riscv-for-linus-5.20-mw2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (43 commits)
dt-bindings: gpio: sifive: add gpio-line-names
wireguard: selftests: set CONFIG_NONPORTABLE on riscv32
RISC-V: KVM: Support sstc extension
RISC-V: Improve SBI definitions
RISC-V: Move counter info definition to sbi header file
RISC-V: Fix SBI PMU calls for RV32
RISC-V: Update user page mapping only once during start
RISC-V: Fix counter restart during overflow for RV32
RISC-V: Prefer sstc extension if available
RISC-V: Enable sstc extension parsing from DT
RISC-V: Add SSTC extension CSR details
riscv:uprobe fix SR_SPIE set/clear handling
dt-bindings: riscv: fix SiFive l2-cache's cache-sets
riscv: ensure cpu_ops_sbi is declared
RISC-V: cpu_ops_spinwait.c should include head.h
RISC-V: Declare cpu_ops_spinwait in <asm/cpu_ops.h>
riscv: dts: starfive: correct number of external interrupts
riscv: dts: sifive unmatched: Add PWM controlled LEDs
riscv/purgatory: Omit use of bin2c
riscv/purgatory: hard-code obj-y in Makefile
...
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Masahiro Yamada
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d8357e3bf8
|
riscv/purgatory: Omit use of bin2c
The .incbin assembler directive is much faster than bin2c + $(CC).
Do similar refactoring as in commit
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Linus Torvalds
|
21f9c8a13b |
Revert "Makefile.extrawarn: re-enable -Wformat for clang"
This reverts commit
|
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|
Linus Torvalds
|
0af5cb349a |
Kbuild updates for v5.20
- Remove the support for -O3 (CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3) - Fix error of rpm-pkg cross-builds - Support riscv for checkstack tool - Re-enable -Wformwat warnings for Clang - Clean up modpost, Makefiles, and misc scripts -----BEGIN PGP SIGNATURE----- iQJJBAABCgAzFiEEbmPs18K1szRHjPqEPYsBB53g2wYFAmLykZUVHG1hc2FoaXJv eUBrZXJuZWwub3JnAAoJED2LAQed4NsG4QoP/3Ooac5+kmcm9nT+fwtuQkFMPDhW /5ipDgE8W6kwbGSZX7/KD/3otiUhyhhlUjh1tUHpl+WEoy9Q1orUzbyOzTQW0QYH zdGazuDBsTPa35Vmow3vGUyX1FdRNKsHuDXC1M2BBLZK05OEjyNMxgi6NowE/XnK nFVAdZgu6HYfym/L5FDuXEmM1EYiAcPZL37+rBAd5mVCEyDk3rW2TxDa05Gs/8dr 7QJ9rOKPS7+Hs/gc7w56z91eBzvWOhLjTcKFsqOuL3Yd1oFIwExAhaxo3TRUkp8i VBYKfty+9tXPxNNzKHBq4U9gONkuwQEQu3wOQbSKJQblkS5Sq2wfXH4kQoyCAZIB 5+lsI4idHnD1ZBpOjYxxDrIY6qD+eb/xbxa+AxILoFOK8P1uEn7IHAtwLAg9BzT0 NXdTd8W63D/5F6hVOJNqK8TPupINcWdXcvFvgz6q+Q6l8EDoVnsmSUP3F1qlJ0DI WhtKhX1CI1PC2T/8ruKJWfPTi6foHhzu4euYWuqUzMmlkhLbp9yHYDDxDN9Li2bh eT/Qy2oWHraLfXvmfhuE9SS0FrQgNtwtmPCVIn7JZTcji9JCt4ax7Erq3ufhG1BR oT1X4M1iangjILbZXJlrrS1qz3DeV84pjjR0TF/56ifqskRJPOPrfHnrQ0m3aMnh TDSweoE1ah1BcAlz =9kds -----END PGP SIGNATURE----- Merge tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild Pull Kbuild updates from Masahiro Yamada: - Remove the support for -O3 (CONFIG_CC_OPTIMIZE_FOR_PERFORMANCE_O3) - Fix error of rpm-pkg cross-builds - Support riscv for checkstack tool - Re-enable -Wformwat warnings for Clang - Clean up modpost, Makefiles, and misc scripts * tag 'kbuild-v5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (30 commits) modpost: remove .symbol_white_list field entirely modpost: remove unneeded .symbol_white_list initializers modpost: add PATTERNS() helper macro modpost: shorten warning messages in report_sec_mismatch() Revert "Kbuild, lto, workaround: Don't warn for initcall_reference in modpost" modpost: use more reliable way to get fromsec in section_rel(a)() modpost: add array range check to sec_name() modpost: refactor get_secindex() kbuild: set EXIT trap before creating temporary directory modpost: remove unused Elf_Sword macro Makefile.extrawarn: re-enable -Wformat for clang kbuild: add dtbs_prepare target kconfig: Qt5: tell the user which packages are required modpost: use sym_get_data() to get module device_table data modpost: drop executable ELF support checkstack: add riscv support for scripts/checkstack.pl kconfig: shorten the temporary directory name for cc-option scripts: headers_install.sh: Update config leak ignore entries kbuild: error out if $(INSTALL_MOD_PATH) contains % or : kbuild: error out if $(KBUILD_EXTMOD) contains % or : ... |
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Linus Torvalds
|
e74acdf55d |
Modules updates for 6.0
For the 6.0 merge window the modules code shifts to cleanup and minor fixes
effort. This is becomes much easier to do and review now due to the code
split to its own directory from effort on the last kernel release. I expect
to see more of this with time and as we expand on test coverage in the future.
The cleanups and fixes come from usual suspects such as Christophe Leroy and
Aaron Tomlin but there are also some other contributors.
One particular minor fix worth mentioning is from Helge Deller, where he spotted
a *forever* incorrect natural alignment on both ELF section header tables:
* .altinstructions
* __bug_table sections
A lot of back and forth went on in trying to determine the ill effects of this
misalignment being present for years and it has been determined there should
be no real ill effects unless you have a buggy exception handler. Helge actually
hit one of these buggy exception handlers on parisc which is how he ended up
spotting this issue. When implemented correctly these paths with incorrect
misalignment would just mean a performance penalty, but given that we are
dealing with alternatives on modules and with the __bug_table (where info
regardign BUG()/WARN() file/line information associated with it is stored)
this really shouldn't be a big deal.
The only other change with mentioning is the kmap() with kmap_local_page()
and my only concern with that was on what is done after preemption, but the
virtual addresses are restored after preemption. This is only used on module
decompression.
This all has sit on linux-next for a while except the kmap stuff which has
been there for 3 weeks.
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Merge tag 'modules-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux
Pull module updates from Luis Chamberlain:
"For the 6.0 merge window the modules code shifts to cleanup and minor
fixes effort. This becomes much easier to do and review now due to the
code split to its own directory from effort on the last kernel
release. I expect to see more of this with time and as we expand on
test coverage in the future. The cleanups and fixes come from usual
suspects such as Christophe Leroy and Aaron Tomlin but there are also
some other contributors.
One particular minor fix worth mentioning is from Helge Deller, where
he spotted a *forever* incorrect natural alignment on both ELF section
header tables:
* .altinstructions
* __bug_table sections
A lot of back and forth went on in trying to determine the ill effects
of this misalignment being present for years and it has been
determined there should be no real ill effects unless you have a buggy
exception handler. Helge actually hit one of these buggy exception
handlers on parisc which is how he ended up spotting this issue. When
implemented correctly these paths with incorrect misalignment would
just mean a performance penalty, but given that we are dealing with
alternatives on modules and with the __bug_table (where info regardign
BUG()/WARN() file/line information associated with it is stored) this
really shouldn't be a big deal.
The only other change with mentioning is the kmap() with
kmap_local_page() and my only concern with that was on what is done
after preemption, but the virtual addresses are restored after
preemption. This is only used on module decompression.
This all has sit on linux-next for a while except the kmap stuff which
has been there for 3 weeks"
* tag 'modules-6.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux:
module: Replace kmap() with kmap_local_page()
module: Show the last unloaded module's taint flag(s)
module: Use strscpy() for last_unloaded_module
module: Modify module_flags() to accept show_state argument
module: Move module's Kconfig items in kernel/module/
MAINTAINERS: Update file list for module maintainers
module: Use vzalloc() instead of vmalloc()/memset(0)
modules: Ensure natural alignment for .altinstructions and __bug_table sections
module: Increase readability of module_kallsyms_lookup_name()
module: Fix ERRORs reported by checkpatch.pl
module: Add support for default value for module async_probe
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Linus Torvalds
|
cab9de7169 |
Coccinelle semantic patch changes
The changes are as follows:
* Update the semantic patches in the kernel that contain a URL for
Coccinelle with a URL that is currently valid (from myself).
* Add a semantic patch checking for unnecessary NULL tests on dev_{put,
hold} functions (from Ziyang Xuan, followed bt a modification from
myself).
* Drop a semantic patch that replaces 0/1 by booleans, as this change was
considered to be not worthwhile by some maintainers (from Steve Rostedt).
* Extend an existing semantic patch with more checks for useless tests on
variables addresses (from Jérémy Lefaure).
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
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Merge tag 'coccinelle-for-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux
Pull coccinelle semantic patch updates from Julia Lawall:
- Update the semantic patches in the kernel that contain a URL for
Coccinelle with a URL that is currently valid (from myself).
- Add a semantic patch checking for unnecessary NULL tests on dev_{put,
hold} functions (from Ziyang Xuan, followed bt a modification from
myself).
- Drop a semantic patch that replaces 0/1 by booleans, as this change
was considered to be not worthwhile by some maintainers (from Steve
Rostedt).
- Extend an existing semantic patch with more checks for useless tests
on variables addresses (from Jérémy Lefaure).
* tag 'coccinelle-for-5.20' of git://git.kernel.org/pub/scm/linux/kernel/git/jlawall/linux:
update Coccinelle URL
coccinelle: free: add version constraint
scripts/coccinelle/free: add NULL test before dev_{put, hold} functions
coccinelle: Remove script that checks replacing 0/1 with false/true in functions returning bool
coccinelle: Extend address test from ifaddr semantic patch to test expressions
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Julia Lawall
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f01701cec8 |
update Coccinelle URL
Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr> |