+++ Masahiro Yamada [08/10/19 12:10 +0900]:
We discussed a better location for this file, and agreed that
core-api/ is a good fit. Rename it to symbol-namespaces.rst
for disambiguation, and also add it to index.rst and MAINTAINERS.
Signed-off-by: Masahiro Yamada
Applied, thanks!
Jessica
+++ Matthias Maennich [07/10/19 07:06 +0100]:
Hi!
On Mon, Oct 07, 2019 at 01:36:11PM +0900, Masahiro Yamada wrote:
I did not notice this document was added to Documentation/kbuild/,
and I do not understand how it is related to the build system.
Kick it out of the kbuild directory.
I am not su
+++ Luis R. Rodriguez [27/06/17 00:44 +0200]:
On Mon, Jun 26, 2017 at 11:37:36PM +0200, Jessica Yu wrote:
+++ Kees Cook [20/06/17 17:23 -0700]:
> On Tue, Jun 20, 2017 at 1:56 PM, Luis R. Rodriguez wrote:
> > On Fri, May 26, 2017 at 02:12:24PM -0700, Luis R. Rodriguez wrote:
> >
+++ Petr Mladek [27/06/17 10:13 +0200]:
On Tue 2017-06-27 02:27:44, Luis R. Rodriguez wrote:
On Tue, Jun 27, 2017 at 12:44:42AM +0200, Luis R. Rodriguez wrote:
> On Mon, Jun 26, 2017 at 11:37:36PM +0200, Jessica Yu wrote:
> > +++ Kees Cook [20/06/17 17:23 -0700]:
> > > On Tue,
+++ Kees Cook [20/06/17 17:23 -0700]:
On Tue, Jun 20, 2017 at 1:56 PM, Luis R. Rodriguez wrote:
On Fri, May 26, 2017 at 02:12:24PM -0700, Luis R. Rodriguez wrote:
This v3 nukes the proc sysctl interface in favor for just letting userspace
just check kernel revision. Prior to whenever this is m
+++ Dmitry Torokhov [24/05/17 19:27 -0700]:
On Thu, May 25, 2017 at 03:00:17AM +0200, Luis R. Rodriguez wrote:
On Wed, May 24, 2017 at 05:45:37PM -0700, Dmitry Torokhov wrote:
> On Thu, May 25, 2017 at 02:14:52AM +0200, Luis R. Rodriguez wrote:
> > On Fri, May 19, 2017 at 03:27:12PM -0700, Dmitr
| 6 +++---
kernel/power/hibernate.c | 2 +-
kernel/power/power.h | 4 ++--
kernel/power/snapshot.c| 4 ++--
24 files changed, 41 insertions(+), 43 deletions(-)
For the module.{c,h} bits:
Acked-by: Jessica Yu
--
To unsubscribe
+++ Luis R. Rodriguez [06/01/17 21:36 +0100]:
On Tue, Jan 03, 2017 at 10:34:53AM +1030, Rusty Russell wrote:
"Luis R. Rodriguez" writes:
> Right, out of ~350 request_module() calls (not included try requests)
> only ~46 check the return value. Hence a validation check, and come to
> think of it
+++ Rusty Russell [03/01/17 10:34 +1030]:
"Luis R. Rodriguez" writes:
Maybe a similar hack for try_then_request_module(), but many places seem
to open-code request_module() so it's not as trivial...
Hi Luis, Jessica (who is the main module maintainer now),
Back from break, sorry about
+++ Luis R. Rodriguez [08/12/16 11:49 -0800]:
kmod has an optimization in place whereby if a some kernel code
uses request_module() on a module already loaded we never bother
userspace as the module already is loaded. This is not true for
get_fs_type() though as it uses aliases.
Additionally kmo
+++ Luis R. Rodriguez [08/12/16 11:48 -0800]:
kmod_concurrent is used as an atomic counter for enabling
the allowed limit of modprobe calls, provide wrappers for it
to enable this to be expanded on more easily. This will be done
later.
Signed-off-by: Luis R. Rodriguez
---
kernel/kmod.c | 27 +++
+++ Luis R. Rodriguez [16/12/16 09:05 +0100]:
On Thu, Dec 15, 2016 at 01:46:25PM +0100, Petr Mladek wrote:
On Thu 2016-12-08 22:08:59, Luis R. Rodriguez wrote:
> On Thu, Dec 08, 2016 at 12:29:42PM -0800, Kees Cook wrote:
> > On Thu, Dec 8, 2016 at 11:48 AM, Luis R. Rodriguez
wrote:
> > > kmod_
+++ Petr Mladek [18/08/16 11:57 +0200]:
On Wed 2016-08-17 20:58:30, Jessica Yu wrote:
Document usage of arch-specific elf sections in livepatch as well
as implementation of arch-specific code.
Signed-off-by: Jessica Yu
---
Documentation/livepatch/module-elf-format.txt | 20
+++ Petr Mladek [18/08/16 11:51 +0200]:
On Wed 2016-08-17 20:58:29, Jessica Yu wrote:
Implement arch_klp_init_object_loaded() for x86, which applies
alternatives/paravirt patches. This fixes the order in which relocations
and alternatives/paravirt patches are applied.
Previously, if a patch
Document usage of arch-specific elf sections in livepatch as well
as implementation of arch-specific code.
Signed-off-by: Jessica Yu
---
Documentation/livepatch/module-elf-format.txt | 20
1 file changed, 16 insertions(+), 4 deletions(-)
diff --git a/Documentation
call module_enable_ro() when returning on error
v2:
- add BUILD_BUG_ON() check in arch_klp_init_object_loaded (x86)
[1] http://thread.gmane.org/gmane.linux.kernel/2185604/
[2] https://github.com/dynup/kpatch/issues/580
Jessica Yu (3):
livepatch: use arch_klp_init_object_loaded() to finish arc
applied in
arch_klp_init_object_loaded().
Signed-off-by: Jessica Yu
---
arch/x86/kernel/Makefile| 1 +
arch/x86/kernel/livepatch.c | 65 +
2 files changed, 66 insertions(+)
create mode 100644 arch/x86/kernel/livepatch.c
diff --git a/arch/x86/kernel/Makefile
Introduce arch_klp_init_object_loaded() to complete any additional
arch-specific tasks during patching. Architecture code may override this
function.
Signed-off-by: Jessica Yu
---
include/linux/livepatch.h | 3 +++
kernel/livepatch/core.c | 16 +---
2 files changed, 16 insertions
+++ Jessica Yu [22/03/16 20:03 -0400]:
Patches based on linux-next.
Previous patchset (v5) found here:
http://lkml.kernel.org/g/1458157628-8264-1-git-send-email-j...@redhat.com
v6:
- Since we hard-code the field widths for the objname and symbol name
for the sscanf() calls, which are
() since module_arch_freeing_init() (which also frees
those structures) is called in do_init_module(). If the module isn't a
livepatch module, we free the structures in module_arch_freeing_init() as
usual.
Signed-off-by: Jessica Yu
Reviewed-by: Miroslav Benes
---
arch/s390/kernel/module.
symbol.
Signed-off-by: Jessica Yu
Reviewed-by: Miroslav Benes
---
include/linux/module.h | 25 ++
kernel/module.c| 125 +++--
2 files changed, 147 insertions(+), 3 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
Document livepatch module requirements and the special Elf constants patch
modules use.
Signed-off-by: Jessica Yu
Acked-by: Miroslav Benes
---
Documentation/livepatch/module-elf-format.txt | 311 ++
1 file changed, 311 insertions(+)
create mode 100644 Documentation
oader.
Lastly, mark the module as a livepatch module so that the module loader
canappropriately identify and initialize it.
Signed-off-by: Jessica Yu
Reviewed-by: Miroslav Benes
---
arch/s390/include/asm/livepatch.h| 7 --
arch/x86/include/asm/livepatch.h | 2 -
arch/x86/kernel/Mak
elected from OS-specific
ranges according to the definitions from glibc.
Signed-off-by: Jessica Yu
Reviewed-by: Miroslav Benes
---
include/uapi/linux/elf.h | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 71e1d0e.
ant copy of the module in memory
- Add module->klp flag for simple identification of livepatch modules
- s390: remove redundant vfree() and preserve mod_arch_specific if
livepatch module
- Use array format instead of a linked list for klp_reloc_secs
- Add new documentation describing the forma
+++ Jiri Kosina [21/03/16 23:02 +0100]:
On Mon, 21 Mar 2016, Josh Poimboeuf wrote:
According to my test that still results in the literal value of
"(64 - 8)".
Alright. But we should be able to special-case it with a two #if checks on
the __SIZEOF_LONG__ value and BUILD_BUG_ON() when __SIZEOF_
+++ Josh Poimboeuf [21/03/16 09:06 -0500]:
On Wed, Mar 16, 2016 at 03:47:04PM -0400, Jessica Yu wrote:
For livepatch modules, copy Elf section, symbol, and string information
from the load_info struct in the module loader. Persist copies of the
original symbol table and string table.
Livepatch
+++ Miroslav Benes [21/03/16 14:55 +0100]:
On Wed, 16 Mar 2016, Jessica Yu wrote:
[...]
+struct klp_buf {
+ char symname[KSYM_SYMBOL_LEN];
I think it is better to make this KSYM_NAME_LEN. KSYM_SYMBOL_LEN looks
like something different and KSYM_NAME_LEN is 128 which you reference
below
+++ Josh Poimboeuf [21/03/16 12:36 -0500]:
On Mon, Mar 21, 2016 at 11:46:51AM -0500, Josh Poimboeuf wrote:
On Mon, Mar 21, 2016 at 05:31:57PM +0100, Petr Mladek wrote:
> > diff --git a/kernel/livepatch/core.c b/kernel/livepatch/core.c
> > index 780f00c..2aa20fa 100644
> > --- a/kernel/livepatch/
symbol.
Signed-off-by: Jessica Yu
---
include/linux/module.h | 25 ++
kernel/module.c| 123 -
2 files changed, 146 insertions(+), 2 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index 2bb0c30..3daf2b3 100
elected from OS-specific
ranges according to the definitions from glibc.
Signed-off-by: Jessica Yu
---
include/uapi/linux/elf.h | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 71e1d0e..cb4a72f 100644
--- a/inc
Document livepatch module requirements and the special Elf constants patch
modules use.
Signed-off-by: Jessica Yu
---
Documentation/livepatch/module-elf-format.txt | 311 ++
1 file changed, 311 insertions(+)
create mode 100644 Documentation/livepatch/module-elf
Mark the module as a livepatch module so that the module loader can
appropriately identify and initialize it.
Signed-off-by: Jessica Yu
---
samples/livepatch/livepatch-sample.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/samples/livepatch/livepatch-sample.c
b/samples/livepatch
oader.
Signed-off-by: Jessica Yu
---
arch/s390/include/asm/livepatch.h | 7 --
arch/x86/include/asm/livepatch.h | 2 -
arch/x86/kernel/Makefile | 1 -
arch/x86/kernel/livepatch.c | 70 ---
include/linux/livepatch.h | 20 --
kernel/livepatch/c
+++ Jessica Yu [16/03/16 15:47 -0400]:
For livepatch modules, copy Elf section, symbol, and string information
from the load_info struct in the module loader. Persist copies of the
original symbol table and string table.
Livepatch manages its own relocation sections in order to reuse module
livepatch module
- Use array format instead of a linked list for klp_reloc_secs
- Add new documentation describing the format of a livepatch module in
Documentation/livepatch
Jessica Yu (6):
Elf: add livepatch-specific Elf constants
module: preserve Elf information for livepatch modules
modul
() since module_arch_freeing_init() (which also frees
those structures) is called in do_init_module(). If the module isn't a
livepatch module, we free the structures in module_arch_freeing_init() as
usual.
Signed-off-by: Jessica Yu
---
arch/s390/kernel/module.c | 6 --
1 file changed, 4 inser
+++ Petr Mladek [09/02/16 15:01 +0100]:
On Wed 2016-02-03 20:11:09, Jessica Yu wrote:
Reuse module loader code to write relocations, thereby eliminating the need
for architecture specific relocation code in livepatch. Specifically, reuse
the apply_relocate_add() function in the module loader to
+++ Josh Poimboeuf [08/02/16 14:26 -0600]:
On Wed, Feb 03, 2016 at 08:11:09PM -0500, Jessica Yu wrote:
Reuse module loader code to write relocations, thereby eliminating the need
for architecture specific relocation code in livepatch. Specifically, reuse
the apply_relocate_add() function in the
+++ Josh Poimboeuf [08/02/16 14:10 -0600]:
On Wed, Feb 03, 2016 at 08:11:07PM -0500, Jessica Yu wrote:
For livepatch modules, copy Elf section, symbol, and string information
from the load_info struct in the module loader. Persist copies of the
original symbol table and string table.
Livepatch
+++ Jessica Yu [03/02/16 20:11 -0500]:
Livepatch needs to utilize the symbol information contained in the
mod_arch_specific struct in order to be able to call the s390
apply_relocate_add() function to apply relocations. Keep a reference to
syminfo if the module is a livepatch module. Remove the
symbol.
Signed-off-by: Jessica Yu
---
include/linux/module.h | 25 ++
kernel/module.c| 133 ++---
2 files changed, 151 insertions(+), 7 deletions(-)
diff --git a/include/linux/module.h b/include/linux/module.h
index 4560d8f..58e6200 100
elected from OS-specific
ranges according to the definitions from glibc.
Signed-off-by: Jessica Yu
---
include/uapi/linux/elf.h | 10 ++
1 file changed, 6 insertions(+), 4 deletions(-)
diff --git a/include/uapi/linux/elf.h b/include/uapi/linux/elf.h
index 71e1d0e..cb4a72f 100644
--- a/inc
Mark the module as a livepatch module so that the module loader can
appropriately identify and initialize it.
Signed-off-by: Jessica Yu
---
samples/livepatch/livepatch-sample.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/samples/livepatch/livepatch-sample.c
b/samples/livepatch
() since module_arch_freeing_init() (which also frees
those structures) is called in do_init_module(). If the module isn't a
livepatch module, we free the structures in module_arch_freeing_init() as
usual.
Signed-off-by: Jessica Yu
---
arch/s390/kernel/module.c | 7 +--
1 file chang
Document livepatch module requirements and the special Elf constants patch
modules use.
Signed-off-by: Jessica Yu
---
Documentation/livepatch/module-elf-format.txt | 311 ++
1 file changed, 311 insertions(+)
create mode 100644 Documentation/livepatch/module-elf
oader.
Signed-off-by: Jessica Yu
---
arch/s390/include/asm/livepatch.h | 7 -
arch/x86/include/asm/livepatch.h | 2 -
arch/x86/kernel/Makefile | 1 -
arch/x86/kernel/livepatch.c | 70 --
include/linux/livepatch.h | 30 ++--
kernel/livepatch/core.c
ree() and preserve mod_arch_specific if
livepatch module
- Use array format instead of a linked list for klp_reloc_secs
- Add new documentation describing the format of a livepatch module in
Documentation/livepatch
Jessica Yu (6):
Elf: add livepatch-specific Elf constants
module: p
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