On 5/9/25 12:52, Kalra, Ashish wrote:
>
> On 5/9/2025 12:01 PM, Paluri, PavanKumar wrote:
>>
>>
>> On 5/8/2025 5:52 PM, Ashish Kalra wrote:
>>> From: Ashish Kalra
>>>
>>> During platform init, SNP initialization may fail for several reasons,
>>> such as firmware command failures and incompatible
On Mon, 28 Apr 2025 09:52:44 +0200, Krzysztof Kozlowski wrote:
> Commit 4b4ab93ddc5f ("dt-bindings: remoteproc: Consolidate SC8180X and
> SM8150 PAS files") moved SC8180X bindings from separate file into this
> one, but it forgot to add actual compatibles in top-level properties
> section making
Hello:
This series was applied to bpf/bpf-next.git (master)
by Alexei Starovoitov :
On Thu, 1 May 2025 09:35:51 +0200 you wrote:
> This improves the expressiveness of unprivileged BPF by inserting
> speculation barriers instead of rejecting the programs.
>
> The approach was previously presente
On Fri, May 9, 2025 at 11:39 AM wrote:
>
> Hello:
>
> This series was applied to bpf/bpf-next.git (master)
> by Alexei Starovoitov :
>
> On Thu, 1 May 2025 09:35:51 +0200 you wrote:
> > This improves the expressiveness of unprivileged BPF by inserting
> > speculation barriers instead of rejecting
The pull request you sent on Fri, 9 May 2025 17:09:54 +0200:
> git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux.git/
> tags/modules-6.15-rc6
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/29fe5d50dfa6b61043e2e89206389ae56b5596eb
Thank you!
--
Deet-doot-d
Expose the virtio_rtc clocks as PTP clocks to userspace, similar to
ptp_kvm. virtio_rtc can expose multiple clocks, e.g. a UTC clock and a
monotonic clock.
Userspace should distinguish different clocks through the name assigned by
the driver. In particular, UTC-like clocks can also be distinguishe
On 5/9/25 09:41, Thomas Weißschuh wrote:
+Cc Kees
On Wed, May 07, 2025 at 03:06:16PM -0600, Shuah Khan wrote:
On 5/2/25 06:03, Thomas Weißschuh wrote:
The TAP specification requires that the output begins with a header line.
These headers lines are missing in the timens tests.
Print such a li
On Fri, May 09, 2025 at 02:54:06PM +0200, Joel Granados wrote:
> Move the max_lock_depth sysctl table element and variable into
> rtmutex.c. Make the variable static as it no longer needs to be
> exported. Removed the rtmutex.h include from sysctl.c.
>
> This is part of a greater effort to move ct
On Fri, May 09, 2025 at 02:54:15PM +0200, Joel Granados wrote:
> These comments are older than 2003 and therefore do not bare any
> relevance on the current state of the sysctl.c file. Remove them as they
> confuse more than clarify.
>
> Signed-off-by: Joel Granados
Reviewed-by: Kees Cook
--
On Fri, May 09, 2025 at 02:54:16PM +0200, Joel Granados wrote:
> Remove the following headers from the include list in sysctl.c.
>
> * These are removed as the related variables are no longer there.
> ===
> Include Related Var
> ==
On 5/9/25 18:19, Linus Torvalds wrote:
> On Fri, 9 May 2025 at 08:09, Petr Pavlu wrote:
>>
>> The fix has been on modules-next only since yesterday but should be safe.
>
> Hmm.
>
> At a minimum, the *description* of this bug is garbage.
>
> It talks about an "uninitialized completion pointer",
find_symbol_hole_containing() fails to find a symbol hole (aka stripped
weak symbol) if its section has no symbols before the hole. This breaks
weak symbol detection if -ffunction-sections is enabled.
Fix that by allowing the interval tree to contain section symbols, which
are always at offset ze
When a to-be-created section already exists, there's no point in
emptying the various lists if their respective sections already exist.
In fact it's better to leave them intact as they might get used later.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 4
1 file changed, 4 delet
On linux-next, build for bpf selftest displays a warning:
Warning: Kernel ABI header at 'tools/include/uapi/linux/if_xdp.h'
differs from latest version at 'include/uapi/linux/if_xdp.h'.
Commit 8066e388be48 ("net: add UAPI to the header guard in various network
headers")
changed the header guard
Move module sysctl (modprobe_path and modules_disabled) out of sysctl.c
and into the modules subsystem. Make the modprobe_path variable static
as it no longer needs to be exported. Remove module.h from the includes
in sysctl as it no longer uses any module exported variables.
This is part of a gre
These comments are older than 2003 and therefore do not bare any
relevance on the current state of the sysctl.c file. Remove them as they
confuse more than clarify.
Signed-off-by: Joel Granados
---
kernel/sysctl.c | 16
1 file changed, 16 deletions(-)
diff --git a/kernel/sysctl
5 files changed, 271 insertions(+), 252 deletions(-)
---
base-commit: 7a94ff386a4a0d9322c56c0e998dd20468d869b1
change-id: 20250509-jag-mv_ctltables_iter2-9a176a322c9d
Best regards,
--
Joel Granados
make sysctl_max_threads static as it no longer needs to be exported into
sysctl.c.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kernel/sysctl.c.
Signed-off-by: Joel Granados
---
include/linux/sysctl.h | 3 ---
ker
Remove the following headers from the include list in sysctl.c.
* These are removed as the related variables are no longer there.
===
Include Related Var
===
linux/kmod.h usermodehelper
a
Move the soft-power ctl table into parisc/power.c. As a consequence the
pwrsw_enabled var is made static.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kernel/sysctl.c.
Signed-off-by: Joel Granados
---
drivers/paris
Move the ctl_table with the "tainted" proc_name into kernel/panic.c.
With it moves the proc_tainted helper function.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge conflicts in
kernel/sysctl.c.
Signed-off-by: Joel Granados
---
ke
Move the max_lock_depth sysctl table element and variable into
rtmutex.c. Make the variable static as it no longer needs to be
exported. Removed the rtmutex.h include from sysctl.c.
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge con
Move sysctl_panic_on_rcu_stall and sysctl_max_rcu_stall_to_panic into
the kernel/rcu subdirectory. Make these static in tree_stall.h and
removed them as extern from panic.h as their scope is now confined into
one file.
This is part of a greater effort to move ctl tables into their
respective subsy
Move both sysrq ctl_table and supported sysrq_sysctl_handler helper
function into drivers/tty/sysrq.c. Replaced the __do_proc_dointvec in
helper function with do_proc_dointvec as the former is local to
kernel/sysctl.c.
This is part of a greater effort to move ctl tables into their
respective subsy
Move the randomize_va_space variable together with all its sysctl table
elements into memory.c. Register it to the "kernel" directory by
adding it to the subsys initialization calls
This is part of a greater effort to move ctl tables into their
respective subsystems which will reduce the merge con
Move cad_pid as well as supporting function proc_do_cad_pid into
kernel/pic.c. Replaced call to __do_proc_dointvec with proc_dointvec
inside proc_do_cad_pid which requires the copy of the ctl_table to
handle the temp value.
This is part of a greater effort to move ctl tables into their
respective
Le Thu, May 08, 2025 at 02:43:11PM +0800, Z qiang a écrit :
> On Thu, May 8, 2025 at 12:25 AM Frederic Weisbecker
> wrote:
> > On a second thought, isn't "rdp == this_cpu_ptr(&rcu_data)" enough?
>
> If the CONFIG_DEBUG_PREEMPT=y, the following code will cause
> a warning in rcuop kthreads:
>
>
+Cc Kees
On Wed, May 07, 2025 at 03:06:16PM -0600, Shuah Khan wrote:
> On 5/2/25 06:03, Thomas Weißschuh wrote:
> > The TAP specification requires that the output begins with a header line.
> > These headers lines are missing in the timens tests.
> >
> > Print such a line.
>
> There is no cover
On 5/9/25 8:54 AM, Joel Granados wrote:
Move the max_lock_depth sysctl table element and variable into
rtmutex.c. Make the variable static as it no longer needs to be
exported. Removed the rtmutex.h include from sysctl.c.
This is part of a greater effort to move ctl tables into their
respectiv
On Fri, May 09, 2025 at 05:30:32PM +0200, David Hildenbrand wrote:
> Let's test some basic functionality using /dev/mem. These tests will
> implicitly cover some PAT (Page Attribute Handling) handling on x86.
>
> These tests will only run when /dev/mem access to the first two pages
> in physical a
Hi,
This is V2 of series which introduce new uAPI(RPMSG_CREATE_EPT_FD_IOCTL)
for rpmsg subsystem.
Current uAPI implementation for rpmsg ctrl & char device manipulation is
abstracted in procedures below:
- fd = open("/dev/rpmsg_ctrlX")
- ioctl(fd, RPMSG_CREATE_EPT_IOCTL, &info); /dev/rpmsgY devnod
This series implements a driver for a virtio-rtc device conforming to spec
proposal v9 [1]. It includes a PTP clock driver and an RTC class driver
with alarm.
v7 updates
==
v7 adds a char length printf modifier to avoid a warning with old
compilers.
The spec v9 changes do not affect this
Introduce new eptdev abstraction based on anon inode. The new API is
exactly same with legacy one except:
- It's anonymous and devnode/path free.
- Its fops->open() is empty.
Signed-off-by: Dawei Li
---
drivers/rpmsg/rpmsg_char.c | 44 ++
drivers/rpmsg/rpmsg_
Implement RPMSG_CREATE_EPT_FD_IOCTL, new uAPI for rpmsg ctrl, which
shares most of operations of RPMSG_CREATE_EPT_IOCTL except that it
returns fd representing eptdev to userspace directly.
Possible calling procedures for userspace are:
- fd = open("/dev/rpmsg_ctrlX")
- ioctl(fd, RPMSG_CREATE_EPT_F
On Fri, May 09, 2025 at 02:54:13PM +0200, Joel Granados wrote:
> Move cad_pid as well as supporting function proc_do_cad_pid into
> kernel/pic.c. Replaced call to __do_proc_dointvec with proc_dointvec
> inside proc_do_cad_pid which requires the copy of the ctl_table to
> handle the temp value.
>
>
On Fri, May 09, 2025 at 02:54:09PM +0200, Joel Granados wrote:
> Move the soft-power ctl table into parisc/power.c. As a consequence the
> pwrsw_enabled var is made static.
>
> This is part of a greater effort to move ctl tables into their
> respective subsystems which will reduce the merge confli
On Fri, May 09, 2025 at 02:54:07PM +0200, Joel Granados wrote:
> Move sysctl_panic_on_rcu_stall and sysctl_max_rcu_stall_to_panic into
> the kernel/rcu subdirectory. Make these static in tree_stall.h and
> removed them as extern from panic.h as their scope is now confined into
> one file.
>
> This
On Fri, May 09, 2025 at 02:54:12PM +0200, Joel Granados wrote:
> Move the ctl_table with the "tainted" proc_name into kernel/panic.c.
> With it moves the proc_tainted helper function.
>
> This is part of a greater effort to move ctl tables into their
> respective subsystems which will reduce the m
On Fri, May 09, 2025 at 02:54:10PM +0200, Joel Granados wrote:
> make sysctl_max_threads static as it no longer needs to be exported into
> sysctl.c.
>
> This is part of a greater effort to move ctl tables into their
> respective subsystems which will reduce the merge conflicts in
> kernel/sysctl.
On Fri, May 09, 2025 at 05:41:03PM +0200, Thomas Weißschuh wrote:
> The suppression was actually there at some point and got removed by Kees in
> commit f41c322f17ec ("selftests: Remove KSFT_TAP_LEVEL").
Right, to get consistent output and to work with indentation, there's no
need to track level a
On 5/9/2025 3:07 PM, Joel Fernandes wrote:
>
>
> On 5/7/2025 7:26 AM, Zqiang wrote:
>> In the preparation stage of CPU online, if the corresponding
>> the rdp's->nocb_cb_kthread does not exist, will be created,
>> there is a situation where the rdp's rcuop kthreads creation fails,
>> and then de-
On Fri, May 09, 2025 at 12:37:02PM +0200, Ulf Hansson wrote:
> On Thu, 8 May 2025 at 22:28, Hiago De Franco wrote:
> >
> > Hello,
> >
> > On Thu, May 08, 2025 at 12:03:33PM +0200, Ulf Hansson wrote:
> > > On Wed, 7 May 2025 at 18:02, Hiago De Franco
> > > wrote:
> > > >
> > > > From: Hiago De Fr
On 5/7/2025 5:04 PM, Paul E. McKenney wrote:
> On Wed, May 07, 2025 at 07:26:03PM +0800, Zqiang wrote:
>> For built with CONFIG_PREEMPT_RT=y kernels, running rcutorture
>> tests resulted in the following splat:
>>
>> [ 68.797425] rcutorture_one_extend_check during change: Current 0x1 To
>> a
On 5/9/2025 9:33 AM, Frederic Weisbecker wrote:
> Le Thu, May 08, 2025 at 02:43:11PM +0800, Z qiang a écrit :
>> On Thu, May 8, 2025 at 12:25 AM Frederic Weisbecker
>> wrote:
>>> On a second thought, isn't "rdp == this_cpu_ptr(&rcu_data)" enough?
>>
>> If the CONFIG_DEBUG_PREEMPT=y, the follow
On Fri, 09 May 2025 12:56:22 +0100, Terry Tritton wrote:
> TRACE_syscall.ptrace.negative_ENOSYS and TRACE_syscall.seccomp.negative_ENOSYS
> on arm32 are being reported as failures instead of skipping.
>
> The teardown_trace_fixture function sets the test to KSFT_FAIL in case of a
> non 0 return va
On 5/8/25 17:52, Ashish Kalra wrote:
> From: Ashish Kalra
>
> During platform init, SNP initialization may fail for several reasons,
> such as firmware command failures and incompatible versions. However,
> the KVM capability may continue to advertise support for it.
>
> The platform may have SN
arch_timer_edge_cases tries to migrate itself across host cpus. Before
the first test it migrates to cpu 0 by setting up an affinity mask with
only bit 0 set. After that it looks for the next possible cpu in the
current affinity mask which still has only bit 0 set. So there is no
migration at all.
On Fri, May 09, 2025 at 09:18:00AM -0400, Joel Fernandes wrote:
>
>
> On 5/8/2025 7:42 PM, Paul E. McKenney wrote:
> > Hello!
> >
> > This series makes a few small updates to make rcutorture run better
> > on arm64 servers. Remaining issues include TREE07 .config issues
> > that are addressed b
arch_timer_edge_cases currently fails on ampere-one machines with
the following assertion failure:
Test Assertion Failure
arm64/arch_timer_edge_cases.c:169: timer_condition == istatus
pid=11236 tid=11236 errno=4 - Interrupted system call
1 0x00404ce7: test_run at arch_t
Fix the help text for arch_timer_edge_cases to show the correct
option for setting the wait time.
Signed-off-by: Sebastian Ott
---
tools/testing/selftests/kvm/arm64/arch_timer_edge_cases.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/kvm/arm64/arch_
Create modules.builtin.modinfo as a combination of modinfo from vmlinux
and the result of generating modalias by modpost.
Signed-off-by: Alexey Gladkov
---
scripts/Makefile.vmlinux | 30 +++---
1 file changed, 27 insertions(+), 3 deletions(-)
diff --git a/scripts/Makefil
In order to avoid symbol conflicts if they appear in the same binary, a
more unique alias identifier can be generated.
Signed-off-by: Alexey Gladkov
---
include/linux/module.h | 14 --
scripts/mod/file2alias.c | 18 ++
2 files changed, 26 insertions(+), 6 deletions(
The __MODULE_INFO macros always use __MODULE_INFO_PREFIX. The only way
to use a different prefix is to override __MODULE_INFO_PREFIX, which is
not very useful.
The new macro will be used in file2alias.c to generate modalias for
builtin modules.
Signed-off-by: Alexey Gladkov
---
include/linux/mo
The modules.builtin.modinfo file is used by userspace (kmod to be specific) to
get information about builtin modules. Among other information about the module,
information about module aliases is stored. This is very important to determine
that a particular modalias will be handled by a module that
Define MODULE_DEVICE_TABLE only if a structure is defined for it.
drivers/scsi/BusLogic.c:3735:26: error: use of undeclared identifier
'blogic_pci_tbl'
3735 | MODULE_DEVICE_TABLE(pci, blogic_pci_tbl);
Fixes: 1079a2d251f2 ("[SCSI] BusLogic: stop using check_region")
Cc: Khalid Aziz
Cc: "James E
From: Peter Zijlstra
With the goal of deprecating / removing VOLUNTARY preempt, live-patch
needs to stop relying on cond_resched() to make forward progress.
Instead, rely on schedule() with TASK_FREEZABLE set. Just like
live-patching, the freezer needs to be able to stop tasks in a safe /
known
On Fri, May 09, 2025 at 12:42:39AM +0900, Masahiro Yamada wrote:
> On Mon, May 5, 2025 at 6:39 PM Alexey Gladkov wrote:
> >
> > For some modules, modalias is generated using the modpost utility and
> > the section is added to the module file.
> >
> > When a module is added inside vmlinux, modpost
The creation of modules.builtin.modinfo is going to depend on
.vmlinux.export.o so it is worth moving its creation closer to it.
Signed-off-by: Alexey Gladkov
---
scripts/Makefile.vmlinux | 26 ++
scripts/Makefile.vmlinux_o | 26 +-
2 files chang
On Fri, Apr 25, 2025 at 6:19 PM Mark Brown wrote:
>
> There are KUnit tests for the bitfield packing library but these depend
> on CONFIG_PACKING which is not enabled by anything in either the
> existing KUnit all_tests.config or the base UML config it runs on as
> standard. Enable that in all_te
On 5/7/2025 7:26 AM, Zqiang wrote:
> In the preparation stage of CPU online, if the corresponding
> the rdp's->nocb_cb_kthread does not exist, will be created,
> there is a situation where the rdp's rcuop kthreads creation fails,
> and then de-offload this CPU's rdp, does not assign this CPU's
>
On Fri, May 09, 2025 at 02:54:08PM +0200, Joel Granados wrote:
> Move the randomize_va_space variable together with all its sysctl table
> elements into memory.c. Register it to the "kernel" directory by
> adding it to the subsys initialization calls
>
> This is part of a greater effort to move ct
TEXT_MAIN, DATA_MAIN and friends are defined differently depending on
whether certain config options enable -ffunction-sections and/or
-fdata-sections.
There's no technical reason for that beyond voodoo coding. Keeping the
separate implementations adds unnecessary complexity, fragments the
logic,
Avoid underscore overload by changing:
__UNIQUE_ID___addressable_loops_per_jiffy_868
to the following:
__UNIQUE_ID_addressable_loops_per_jiffy_868
This matches the format used by other __UNIQUE_ID()-generated symbols
and improves readability for those who stare at ELF symbol table dumps.
S
Add the section number and reloc index to relocation error messages to
help find the faulty relocation.
Signed-off-by: Josh Poimboeuf
---
arch/x86/kernel/module.c | 15 +--
kernel/livepatch/core.c | 4 ++--
2 files changed, 11 insertions(+), 8 deletions(-)
diff --git a/arch/x86/ke
The s390 indirect thunks are placed in the .text.__s390_indirect_jump_*
sections.
Certain config options which enable -ffunction-sections have a custom
version of the TEXT_TEXT macro:
.text.[0-9a-zA-Z_]*
That unintentionally matches the thunk sections, causing them to get
grouped with normal t
In preparation for the objtool klp diff subcommand, add an underscore
between the name and the counter. This will make it possible for
objtool to distinguish between the non-unique and unique parts of the
symbol name so it can properly correlate the symbols.
Signed-off-by: Josh Poimboeuf
---
in
In preparation for the objtool klp diff subcommand, replace the custom
unique symbol name generation in ELFNOTE() with __UNIQUE_ID().
This standardizes the naming format for all "unique" symbols, which will
allow objtool to properly correlate them. Note this also removes the
"one ELF note per lin
In the rare case of overlapping symbols, find_symbol_containing() just
returns the first one it finds. Make it slightly less arbitrary by
returning the smallest symbol with size > 0.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/elf.c | 25 -
1 file changed, 20 inserti
In preparation for klp-build livepatch module creation tooling,
suppress warnings for unresolved references to linker-generated
__start_* and __stop_* section bounds symbols.
These symbols are expected to be undefined when modpost runs, as they're
created later by the linker.
Cc: Masahiro Yamada
In preparation for the objtool klp diff subcommand, remove the arbitrary
'kmod_' prefix from __KBUILD_MODNAME and instead add it explicitly in
the __initcall_id() macro.
This change supports the standardization of "unique" symbol naming by
ensuring the non-unique portion of the name comes before t
The free(sym) call in the read_symbols() error path is fundamentally
broken: 'sym' doesn't point to any allocated block. If triggered,
things would go from bad to worse.
Remove the free() and simplify the error paths. Freeing memory isn't
necessary here anyway, these are fatal errors which lead
On x86, arch_dest_reloc_offset() hardcodes the addend adjustment to
four, but the actual adjustment depends on the relocation type. Fix
that.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/arch/loongarch/decode.c | 4 ++--
tools/objtool/arch/powerpc/decode.c | 4 ++--
tools/objtool/arch/x8
The INT3 call emulation selftest is a bit fragile as it relies on the
compiler not inserting any extra instructions before the
int3_selftest_ip() definition.
Also, the int3_selftest_ip() symbol overlaps with the int3_selftest
symbol(), which can confuse objtool.
Fix those issues by slightly rewor
Zero-length symbols get inserted in the wrong spot. Fix that.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/elf.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/objtool/elf.c b/tools/objtool/elf.c
index a8a78b55d3ec..c024937eb12a 100644
--- a/tools/objtool/elf.c
+++
Add some helper macros to improve readability.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/arch/x86/special.c| 2 +-
tools/objtool/check.c | 58 -
tools/objtool/elf.c | 20 -
tools/objtool/include/objtool/elf.h | 66 +
In preparation for the objtool klp diff subcommand, introduce a flag to
identify __pfx_*() and __cfi_*() functions in advance so they don't need
to be manually identified every time a check is needed.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 3 +--
tools/objtool/el
It's common to use --dryrun on binaries that have already been
processed. Don't print the section skipping warnings in that case.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 28 +---
1 file changed, 21 insertions(+), 7 deletions(-)
diff --git a/tools/objto
Add a new klp diff subcommand which performs a binary diff between two
object files and extracts changed functions into a new object which can
then be linked into a livepatch module.
This builds on concepts from the longstanding out-of-tree kpatch [1]
project which began in 2012 and has been used
Livepatch needs some ELF magic which linkers don't like:
- Two relocation sections (.rela*, .klp.rela*) for the same text
section.
- Use of SHN_LIVEPATCH to mark livepatch symbols.
Unfortunately linkers tend to mangle such things. To work around that,
klp diff generates a linker-complia
Add a --debug option to klp diff which prints cloning decisions and an
indented dependency tree for all cloned symbols and relocations. This
helps visualize which symbols and relocations were included and why.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/include/objtool/warn.h | 21
In preparation for the objtool klp diff subcommand, define the entry
size for the discard.unwind_hints section in its ELF header. This will
allow tooling to extract individual entries.
Signed-off-by: Josh Poimboeuf
---
arch/x86/kernel/unwind_orc.c | 2 ++
include/linux/objtool.h | 9 ++
Add a module initialization stub which can be linked with binary diff
objects to produce a livepatch module.
Signed-off-by: Josh Poimboeuf
---
scripts/livepatch/init.c | 108 +++
1 file changed, 108 insertions(+)
create mode 100644 scripts/livepatch/init.c
d
The following commit
5da6aea375cd ("objtool: Fix find_{symbol,func}_containing()")
fixed the issue where overlapping symbols weren't getting sorted
properly in the symbol tree. Therefore the workaround to skip adding
empty symbols from the following commit
a2e38dffcd93 ("objtool: Don't add
'struct objtool_file' is specific to the check code and doesn't belong
in the elf code which is supposed to be objtool_file-agnostic. Convert
the elf iterator macros to use 'struct elf' instead.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 22 +++---
t
KBUILD_HOSTCFLAGS and KBUILD_HOSTLDFLAGS aren't defined when objtool is
built standalone. Also, the EXTRA_WARNINGS flags are rather arbitrary.
Make things simpler and more consistent by specifying compiler flags
explicitly and tweaking the warnings. Also make a few code tweaks to
make the new wa
Add a sanity check to make sure none of the relocations for the
.discard.annotate_insn section have gone missing.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 5 +
1 file changed, 5 insertions(+)
diff --git a/tools/objtool/check.c b/tools/objtool/check.c
index 53793b9ea974..0cd
Use 'const char *' where applicable.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/arch/loongarch/decode.c | 2 +-
tools/objtool/arch/powerpc/decode.c | 2 +-
tools/objtool/arch/x86/decode.c | 2 +-
tools/objtool/elf.c | 6 +++---
tools/objtool/include/objtool/arch.h
Due to the short circuiting logic in next_insn_to_validate(), control
flow may silently transition from .altinstr_replacement to .text without
a corresponding nested call to validate_branch().
As a result the validate_branch() 'sec' variable doesn't get
reinitialized, which can trigger a confusing
The .parainstructions section no longer exists since the following
commit:
60bc276b129e ("x86/paravirt: Switch mixed paravirt/alternative calls to
alternatives").
Remove the reference to it.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 1 -
1 file changed, 1 deletion(-)
diff -
In preparation for the objtool klp diff subcommand, define the entry
size for the __bug_table section in its ELF header. This will allow
tooling to extract individual entries.
Signed-off-by: Josh Poimboeuf
---
arch/x86/include/asm/bug.h | 44 --
1 file change
In preparation for the objtool klp diff subcommand, defer objtool
validation for CONFIG_LIVEPATCH until the final pre-link archive (e.g.,
vmlinux.o, module-foo.o) is built. This will simplify the process of
generating livepatch modules.
Delayed objtool is generally preferred anyway, and is alread
An upcoming patch will add the SHF_MERGE flag to x86 __jump_table and
__bug_table so their entry sizes can be defined in inline asm.
However, those sections have SHF_WRITE, which the Clang linker (lld)
explicitly forbids combining with SHF_MERGE.
Those sections are modified at runtime and must re
Bring the cmdline check_options[] array back into vertical alignment for
better readability.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/builtin-check.c | 50 +--
1 file changed, 25 insertions(+), 25 deletions(-)
diff --git a/tools/objtool/builtin-check.c b/t
In preparation for the objtool klp diff subcommand, define the entry
size for the __jump_table section in its ELF header. This will allow
tooling to extract individual entries.
Signed-off-by: Josh Poimboeuf
---
arch/x86/include/asm/jump_label.h | 32 +--
include/linu
In preparation for the objtool klp diff subcommand, broaden the
elf_create_section() interface to give callers more control and reduce
duplication of some subtle setup logic.
While at it, make elf_create_rela_section() public so sections can be
created by the upcoming klp diff code.
Signed-off-by
In preparation for the objtool klp diff subcommand, define the entry
size for the .altinstructions section in its ELF header. This will
allow tooling to extract individual entries.
Signed-off-by: Josh Poimboeuf
---
arch/x86/include/asm/alternative.h | 7 +--
arch/x86/kernel/alternative.c
In preparation for the objtool klp diff subcommand, define the entry
size for the __ex_table section in its ELF header. This will allow
tooling to extract individual entries.
Signed-off-by: Josh Poimboeuf
---
arch/x86/include/asm/asm.h | 20
kernel/extable.c | 2
The C version of STACK_FRAME_NON_STANDARD differs from its asm
counterpart in that it creates eight-byte entries (vs four) and creates
a superfluous temporary variable.
Make the entry sizes consistent by converting the C version to four byte
entries.
Signed-off-by: Josh Poimboeuf
---
include/li
Add a --debug option which gets passed to "objtool klp diff" to enable
debug output related to cloning decisions.
Signed-off-by: Josh Poimboeuf
---
scripts/livepatch/klp-build | 16 +---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/scripts/livepatch/klp-build b/scri
In preparation for adding objtool 'check' support for analyzing
livepatch modules, error out if a duplicate prefix symbol is attempted.
Signed-off-by: Josh Poimboeuf
---
tools/objtool/check.c | 12 +++-
tools/objtool/elf.c | 9 +
tools/objtool/inclu
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