The x86 vDSO library requires some adaptations to take advantage of the
newly introduced generic vDSO library.
Introduce the following changes:
- Modification of vdso.c to be compliant with the common vdso datapage
- Use of lib/vdso for gettimeofday
Cc: Thomas Gleixner
Signed-off-by: Vincenzo
-off-by: Vincenzo Frascino
---
arch/mips/Kconfig | 2 +
arch/mips/include/asm/vdso.h | 78 +--
arch/mips/include/asm/vdso/gettimeofday.h | 151 ++
arch/mips/{ => include/asm}/vdso/vdso.h | 6 +-
arch/mips/include/asm/v
The generic vDSO library provides an implementation of clock_getres()
that can be leveraged by each architecture.
Add clock_getres() entry point on mips.
Cc: Ralf Baechle
Cc: Paul Burton
Signed-off-by: Vincenzo Frascino
---
arch/mips/include/asm/vdso/gettimeofday.h | 26
exposing the clock_gettime64 entry
point.
Cc: Russell King
Signed-off-by: Vincenzo Frascino
---
arch/arm/vdso/vdso.lds.S | 1 +
arch/arm/vdso/vgettimeofday.c | 6 ++
2 files changed, 7 insertions(+)
diff --git a/arch/arm/vdso/vdso.lds.S b/arch/arm/vdso/vdso.lds.S
index 1d81e8c3acf6
exposing the clock_gettime64 entry
point.
Cc: Ralf Baechle
Cc: Paul Burton
Signed-off-by: Vincenzo Frascino
---
arch/mips/vdso/vdso.lds.S | 3 +++
arch/mips/vdso/vgettimeofday.c | 6 ++
2 files changed, 9 insertions(+)
diff --git a/arch/mips/vdso/vdso.lds.S b/arch/mips/vdso/vdso.lds.S
If CONFIG_GENERIC_COMPAT_VDSO is enabled, compat vDSO are installed in a
compat (32 bit) process instead of sigpage.
Add the necessary code to setup the vDSO required pages.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre
that takes advantage of the unified vDSO library.
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
include/asm-generic/vdso/vsyscall.h | 56
include/linux/timekeeper_internal.h | 9 ++
include/vdso/vsyscall.h | 11 +++
kernel
When the compat vDSO is enabled, the sigreturn trampolines are not
anymore available through [sigpage] but through [vdso].
Add the relevant code the enable the feature.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
Some 64 bit architectures have support for 32 bit applications that
require a separate version of the vDSOs.
Add support to the generic code for compat fallback functions.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre
).
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
arch/arm64/kernel/vdso.c | 215 ++-
1 file changed, 144 insertions(+), 71 deletions(-)
diff --git a/arch/arm64/kernel/vdso.c b/arch
: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
arch/arm64/Kconfig | 2 +
arch/arm64/include/asm/vdso/gettimeofday.h | 86 ++
arch/arm64/include/asm/vdso/vsyscall.h | 53
arch/arm64/include/asm
: Russell King
Signed-off-by: Vincenzo Frascino
---
arch/arm/Kconfig | 3 +
arch/arm/include/asm/vdso/gettimeofday.h | 74 +++
arch/arm/include/asm/vdso/vsyscall.h | 71 +++
arch/arm/include/asm/vdso_datapage.h | 29 +--
arch/arm/kernel/vdso.c
.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
arch/arm64/include/asm/vdso/compat_barrier.h | 51 +
.../include/asm/vdso/compat_gettimeofday.h| 110 +++
arch/arm64/kernel/vdso32/.gitignore
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
arch/arm64/include/asm/elf.h | 14 ++
1 file changed, 14 insertions(+)
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 355d120b78cb..34cabaf78011 100644
--- a/arch
The compat signal data structures are required as part of the compat
vDSO implementation in order to provide the unwinding information for
the sigreturn trampolines.
Expose the mentioned data structures as part of signal32.h.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Update asm-offsets for arm64 to generate the correct offsets for
compat signals.
They will be useful for the implementation of the compat sigreturn
trampolines in vDSO context.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre
vDSO requires gettimeofday and clock_gettime syscalls to implement the
fallback mechanism.
Add the missing syscall numbers to unistd.h for arm64.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Arnd Bergmann
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
/
Signed-off-by: Peter Collingbourne
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
Cc: Mark Salyzyn
Cc: Will Deacon
Cc: linux-arm-ker...@lists.infradead.org
---
arch/arm64/kernel/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git
duplication.
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
include/linux/hrtimer.h | 15 +--
include/linux/hrtimer_defs.h | 25
include/vdso/helpers.h | 56 +
lib/Kconfig | 5 +
lib/vdso/Kconfig | 36
includes (include/vdso).
Cc: Arnd Bergmann
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
---
include/vdso/datapage.h | 93 +
1 file changed, 93 insertions(+)
create mode 100644 include/vdso/datapage.h
diff --git
as Gleixner
Cc: Mark Salyzyn
Cc: Peter Collingbourne
Cc: Shuah Khan
Cc: Dmitry Safonov <0x7f454...@gmail.com>
Cc: Rasmus Villemoes
Cc: Huw Davies
Cc: Shijith Thotton
Cc: Andre Przywara
Signed-off-by: Vincenzo Frascino
Tested-by: Shijith Thotton
Tested-by: Andre Przywara
Performa
On 20/06/2019 17:27, Andre Przywara wrote:
> On Thu, 30 May 2019 15:15:12 +0100
> Vincenzo Frascino wrote:
>
> Hi,
>
>> vDSO (virtual dynamic shared object) is a mechanism that the Linux
>> kernel provides as an alternative to system calls to reduce where
>&g
Hi Shijith,
...
> Observed good improvement for some APIs with the patch.
>
Looks good. Thanks for testing the set, I will add your tag to my patches.
> Tested-by: Shijith Thotton
>
> Thanks,
> Shijith
>
--
Regards,
Vincenzo
) {
^~
Initialize err to 0 to fix the warning.
Cc: "David S. Miller"
Cc: Alexey Kuznetsov
Cc: Hideaki YOSHIFUJI
Signed-off-by: Vincenzo Frascino
---
net/ipv4/fib_semantics.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/fib_semantics.c
On 6/14/19 1:19 PM, Thomas Gleixner wrote:
> On Fri, 14 Jun 2019, Vincenzo Frascino wrote:
>> On 6/14/19 12:10 PM, Thomas Gleixner wrote:
>>> On Thu, 30 May 2019, Vincenzo Frascino wrote:
>>>> +
>>>> + if (__arch_use_vsyscall(vdata)) {
>&g
On 6/14/19 1:16 PM, Thomas Gleixner wrote:
> On Tue, 4 Jun 2019, Vincenzo Frascino wrote:
>> On 31/05/2019 09:46, Arnd Bergmann wrote:
>>> One open question I touched in my review is whether we want to
>>> have a vdso version of clock_getres() in all architectures or n
Hi Thomas,
On 6/14/19 12:10 PM, Thomas Gleixner wrote:
> On Thu, 30 May 2019, Vincenzo Frascino wrote:
>> +
>> +if (__arch_use_vsyscall(vdata)) {
>> +vdata[CS_HRES_COARSE].cycle_last=
>> +
On 13/06/2019 16:57, Catalin Marinas wrote:
> On Thu, Jun 13, 2019 at 04:45:54PM +0100, Vincenzo Frascino wrote:
>> On 13/06/2019 16:35, Catalin Marinas wrote:
>>> On Thu, Jun 13, 2019 at 12:16:59PM +0100, Dave P Martin wrote:
>>>> On Wed, Jun 12, 2019 at 01:43:20PM
combination to allow the userspace to opt-in this feature.
Cc: Catalin Marinas
Cc: Will Deacon
CC: Andrey Konovalov
Signed-off-by: Vincenzo Frascino
---
Documentation/arm64/tagged-address-abi.txt | 134 +
1 file changed, 134 insertions(+)
create mode 100644 Documentation/arm64
Konovalov
Signed-off-by: Vincenzo Frascino
---
Documentation/arm64/tagged-pointers.txt | 23 ---
1 file changed, 16 insertions(+), 7 deletions(-)
diff --git a/Documentation/arm64/tagged-pointers.txt
b/Documentation/arm64/tagged-pointers.txt
index a25a99e82bb1..e33af14478e3
On 13/06/2019 16:35, Catalin Marinas wrote:
> On Thu, Jun 13, 2019 at 12:16:59PM +0100, Dave P Martin wrote:
>> On Wed, Jun 12, 2019 at 01:43:20PM +0200, Andrey Konovalov wrote:
>>> From: Catalin Marinas
>>>
>>> It is not desirable to relax the ABI to allow tagged user addresses into
>>> the ke
12, 2019 at 03:21:10PM +0100, Vincenzo Frascino wrote:
>> diff --git a/Documentation/arm64/tagged-address-abi.txt
>> b/Documentation/arm64/tagged-address-abi.txt
>> new file mode 100644
>> index ..96e149e2c55c
>> --- /dev/null
>> +++ b/Documentation/ar
On 13/06/2019 16:32, Szabolcs Nagy wrote:
> On 13/06/2019 15:03, Vincenzo Frascino wrote:
>> On 13/06/2019 13:28, Szabolcs Nagy wrote:
>>> On 13/06/2019 12:16, Vincenzo Frascino wrote:
>>>> On 13/06/2019 11:14, Szabolcs Nagy wrote:
>>>>> On 13/06/201
Hi Szabolcs,
thank you for your review.
On 13/06/2019 11:14, Szabolcs Nagy wrote:
> On 13/06/2019 10:20, Catalin Marinas wrote:
>> Hi Szabolcs,
>>
>> On Wed, Jun 12, 2019 at 05:30:34PM +0100, Szabolcs Nagy wrote:
>>> On 12/06/2019 15:21, Vincenzo Frascino wrote:
>
ters to perform
> validity checks, but then uses them as is to perform user memory accesses.
>
> Reviewed-by: Khalid Aziz
> Acked-by: Kees Cook
> Reviewed-by: Catalin Marinas
> Signed-off-by: Andrey Konovalov
Reviewed-by: Vincenzo Frascino
> ---
> lib/strncpy_from_use
Hi Huw,
On 10/06/2019 11:31, Huw Davies wrote:
> On Mon, Jun 10, 2019 at 11:17:48AM +0100, Vincenzo Frascino wrote:
>> On 10/06/2019 10:27, Huw Davies wrote:
>>> On Thu, May 30, 2019 at 03:15:13PM +0100, Vincenzo Frascino wrote:
>>>> --- /dev/null
>>>>
On 10/06/2019 10:34, Huw Davies wrote:
> On Thu, May 30, 2019 at 03:15:15PM +0100, Vincenzo Frascino wrote:
>> With the definition of the unified vDSO library the implementations of
>> update_vsyscall and update_vsyscall_tz became quite similar across
>> architectures.
&
On 10/06/2019 10:31, Huw Davies wrote:
> On Thu, May 30, 2019 at 03:15:14PM +0100, Vincenzo Frascino wrote:
>> In the last few years we assisted to an explosion of vdso
>> implementations that mostly share similar code.
>
> This doesn't make much sense. Perhaps:
Hi Huw,
thank you for your review.
On 10/06/2019 10:27, Huw Davies wrote:
> On Thu, May 30, 2019 at 03:15:13PM +0100, Vincenzo Frascino wrote:
>> --- /dev/null
>> +++ b/include/vdso/datapage.h
>> @@ -0,0 +1,91 @@
>> +/* SPDX-License-Identifier: GPL-2.0 */
&g
On 6/4/19 1:12 PM, Arnd Bergmann wrote:
> On Tue, Jun 4, 2019 at 2:05 PM Vincenzo Frascino
> wrote:
>> On 31/05/2019 09:46, Arnd Bergmann wrote:
>>> On Thu, May 30, 2019 at 4:15 PM Vincenzo Frascino
>>> wrote:
>>> One open question I touched in my revie
Hi Michael,
On 30/05/2019 16:41, Michael Kelley wrote:
> From: Vincenzo Frascino On Thursday, May 30, 2019
> 7:16 AM
>>
>> The x86 vDSO library requires some adaptations to take advantage of the
>> newly introduced generic vDSO library.
>>
>> Introduce the f
Hi Catalin,
thank you for testing my patches and providing the scripts you used to reproduce
the issue.
On 01/06/2019 10:38, Catalin Marinas wrote:
> On Thu, May 30, 2019 at 03:15:27PM +0100, Vincenzo Frascino wrote:
>> Add vDSO compat support to the arm64 building system.
>>
On 31/05/2019 09:19, Arnd Bergmann wrote:
> On Thu, May 30, 2019 at 4:15 PM Vincenzo Frascino
> wrote:
>
>> +
>> +static __always_inline notrace void vdso_write_end(struct vdso_data *vd)
>> +{
>
> Rather than marking every single function in here as "notr
On 31/05/2019 09:16, Arnd Bergmann wrote:
> On Thu, May 30, 2019 at 4:15 PM Vincenzo Frascino
> wrote:
>
>> + * vdso_data will be accessed by 64 bit and compat code at the same time
>> + * so we should be careful before modifying this structure.
>> + */
>> +
Hi Arnd,
thank you for your review.
On 31/05/2019 09:46, Arnd Bergmann wrote:
> On Thu, May 30, 2019 at 4:15 PM Vincenzo Frascino
> wrote:
>>
>> vDSO (virtual dynamic shared object) is a mechanism that the Linux
>> kernel provides as an alternative to system calls to
Hi Huw,
On 15/04/2019 13:14, Huw Davies wrote:
> On Mon, Apr 15, 2019 at 11:15:56AM +0100, Vincenzo Frascino wrote:
>> On 15/04/2019 10:51, Thomas Gleixner wrote:
>>> On Mon, 15 Apr 2019, Huw Davies wrote:
>>>> On Sun, Apr 14, 2019 at 12:53:32PM +0200, Th
Update asm-offsets for arm64 to generate the correct offsets for
compat signals.
They will be useful for the implementation of the compat sigreturn
trampolines in vDSO context.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/kernel/asm-offsets.c | 6
-off-by: Vincenzo Frascino
---
tools/testing/selftests/vDSO/Makefile | 2 +
tools/testing/selftests/vDSO/vdso_full_test.c | 261 ++
2 files changed, 263 insertions(+)
create mode 100644 tools/testing/selftests/vDSO/vdso_full_test.c
diff --git a/tools/testing/selftests
.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/include/asm/vdso/compat_barrier.h | 51 +
.../include/asm/vdso/compat_gettimeofday.h| 108 ++
arch/arm64/kernel/vdso32/.gitignore | 2 +
arch/arm64/kernel/vdso32/Makefile
: Russell King
Signed-off-by: Vincenzo Frascino
---
arch/arm/Kconfig | 3 +
arch/arm/include/asm/vdso/gettimeofday.h | 96
arch/arm/include/asm/vdso/vsyscall.h | 71 ++
arch/arm/include/asm/vdso_datapage.h | 29 +--
arch/arm/kernel/vdso.c
The x86 vDSO library requires some adaptations to take advantage of the
newly introduced generic vDSO library.
Introduce the following changes:
- Modification of vdso.c to be compliant with the common vdso datapage
- Use of lib/vdso for gettimeofday
Cc: Thomas Gleixner
Signed-off-by: Vincenzo
-off-by: Vincenzo Frascino
---
arch/mips/Kconfig | 2 +
arch/mips/include/asm/vdso.h | 78 +--
arch/mips/include/asm/vdso/gettimeofday.h | 175 ++
arch/mips/{ => include/asm}/vdso/vdso.h | 6 +-
arch/mips/include/asm/vdso/vsyscal
Signed-off-by: Vincenzo Frascino
---
arch/arm64/include/asm/elf.h | 14 ++
1 file changed, 14 insertions(+)
diff --git a/arch/arm64/include/asm/elf.h b/arch/arm64/include/asm/elf.h
index 355d120b78cb..34cabaf78011 100644
--- a/arch/arm64/include/asm/elf.h
+++ b/arch/arm64/include/asm
When the compat vDSO is enabled, the sigreturn trampolines are not
anymore available through [sigpage] but through [vdso].
Add the relevant code the enable the feature.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/include/asm/vdso.h | 3 +++
arch/arm64
Add vDSO compat support to the arm64 building system.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/Kconfig | 1 +
arch/arm64/Makefile| 23 +--
arch/arm64/kernel/Makefile | 6 +-
3 files changed, 27 insertions
vDSO requires gettimeofday and clock_gettime syscalls to implement the
fallback mechanism.
Add the missing syscall numbers to unistd.h for arm64.
Cc: Catalin Marinas
Cc: Will Deacon
Cc: Arnd Bergmann
Signed-off-by: Vincenzo Frascino
---
arch/arm64/include/asm/unistd.h | 5 +
1 file
If CONFIG_GENERIC_COMPAT_VDSO is enabled, compat vDSO are installed in a
compat (32 bit) process instead of sigpage.
Add the necessary code to setup the vDSO required pages.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/kernel/vdso.c | 90
).
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/kernel/vdso.c | 215 ++-
1 file changed, 144 insertions(+), 71 deletions(-)
diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 23c38303a52a..aa1fb25a9fe4
Some 64 bit architectures have support for 32 bit applications that
require a separate version of the vDSOs.
Add support to the generic code for compat fallback functions.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
---
lib/vdso/gettimeofday.c | 4
1 file
The compat signal data structures are required as part of the compat
vDSO implementation in order to provide the unwinding information for
the sigreturn trampolines.
Expose the mentioned data structures as part of signal32.h.
Cc: Catalin Marinas
Cc: Will Deacon
Signed-off-by: Vincenzo Frascino
/
Signed-off-by: Peter Collingbourne
Signed-off-by: Vincenzo Frascino
Cc: Mark Salyzyn
Cc: Will Deacon
Cc: linux-arm-ker...@lists.infradead.org
---
arch/arm64/kernel/vdso/Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm64/kernel/vdso/Makefile b/arch/arm64/kernel
takes advantage of the unified vDSO library.
Signed-off-by: Vincenzo Frascino
---
include/asm-generic/vdso/vsyscall.h | 56 +++
include/linux/timekeeper_internal.h | 9 ++
include/vdso/vsyscall.h | 11 +++
kernel/Makefile | 1 +
kernel/vdso/Makefile
: Will Deacon
Signed-off-by: Vincenzo Frascino
---
arch/arm64/Kconfig | 2 +
arch/arm64/include/asm/vdso/gettimeofday.h | 84 ++
arch/arm64/include/asm/vdso/vsyscall.h | 53
arch/arm64/include/asm/vdso_datapage.h | 48 ---
arch/arm64/kernel/asm-offsets.c
duplication.
Signed-off-by: Vincenzo Frascino
---
include/linux/hrtimer.h | 15 +--
include/linux/hrtimer_defs.h | 25
include/vdso/helpers.h | 56 +
lib/Kconfig | 5 +
lib/vdso/Kconfig | 36 ++
lib/vdso/Makefile| 22
lib
includes (include/vdso).
Cc: Arnd Bergmann
Signed-off-by: Vincenzo Frascino
---
include/vdso/datapage.h | 91 +
1 file changed, 91 insertions(+)
create mode 100644 include/vdso/datapage.h
diff --git a/include/vdso/datapage.h b/include/vdso/datapage.h
new
afonov <0x7f454...@gmail.com>
Cc: Rasmus Villemoes
Cc: Huw Davies
Signed-off-by: Vincenzo Frascino
Performance Numbers: Linux 5.2.0-rc2 - Xeon Gold 5120T
==
Unified vDSO:
-
clock-gettime-monotonic: syscall: 342 nsec/call
Hi Thomas,
On 15/04/2019 10:51, Thomas Gleixner wrote:
> On Mon, 15 Apr 2019, Huw Davies wrote:
>
>> On Sun, Apr 14, 2019 at 12:53:32PM +0200, Thomas Gleixner wrote:
>>> So it stays in the same cache line, but as we move the VDSO to generic
>>> code, the mask field needs to stay and this will mak
On 11/02/2019 21:59, Andrey Konovalov wrote:
> Right now we call kmemleak hooks before assigning tags to pointers in
> KASAN hooks. As a result, when an objects gets allocated, kmemleak sees
> a differently tagged pointer, compared to the one it sees when the object
> gets freed. Fix it by calling
On 12/12/2018 17:34, Dave Martin wrote:
> On Mon, Dec 10, 2018 at 02:30:43PM +0000, Vincenzo Frascino wrote:
>> On arm64 the TCR_EL1.TBI0 bit has been set since Linux 3.x hence
>> the userspace (EL0) is allowed to set a non-zero value in the
>> top byte but the resulting poi
On 03/01/2019 18:45, Andrey Konovalov wrote:
> Instead of changing cache->align to be aligned to KASAN_SHADOW_SCALE_SIZE
> in kasan_cache_create() we can reuse the ARCH_SLAB_MINALIGN macro.
>
> Suggested-by: Vincenzo Frascino
> Signed-off-by: Andrey Konovalov
> ---
>
On 12/12/18 3:04 PM, Andrey Konovalov wrote:
> On Tue, Dec 11, 2018 at 5:22 PM Vincenzo Frascino
> wrote:
>>
>> Hi Andrey,
>>
>> On 06/12/2018 12:24, Andrey Konovalov wrote:
>>> This commit adds tag-based KASAN specific hooks implementation and
>>>
Hi Andrey,
On 06/12/2018 12:24, Andrey Konovalov wrote:
> This commit adds tag-based KASAN specific hooks implementation and
> adjusts common generic and tag-based KASAN ones.
>
> 1. When a new slab cache is created, tag-based KASAN rounds up the size of
>the objects in this cache to KASAN_SH
can be
used to advertise this feature to the userspace.
Cc: Catalin Marinas
Cc: Will Deacon
CC: Andrey Konovalov
Signed-off-by: Vincenzo Frascino
---
Documentation/arm64/elf_at_flags.txt | 111 +++
1 file changed, 111 insertions(+)
create mode 100644 Documentation
advertise the relaxation of the ABI to the userspace.
Cc: Catalin Marinas
Cc: Will Deacon
CC: Andrey Konovalov
Signed-off-by: Vincenzo Frascino
---
arch/arm64/include/asm/atflags.h | 7 +++
arch/arm64/include/asm/elf.h | 5 +
arch/arm64/include/uapi/asm/atflags.h | 8
ith
Cc: Kostya Serebryany
Cc: Dmitry Vyukov ,
Cc: Ramana Radhakrishnan
Cc: Luc Van Oostenryck
Cc: Evgeniy Stepanov
CC: Alexander Viro
Signed-off-by: Vincenzo Frascino
Vincenzo Frascino (3):
elf: Make AT_FLAGS arch configurable
arm64: Define Documentation/arm64/elf_at_flags.txt
arm64
.
Cc: Catalin Marinas
Cc: Will Deacon
CC: Andrey Konovalov
CC: Alexander Viro
Signed-off-by: Vincenzo Frascino
---
fs/binfmt_elf.c| 6 +-
fs/binfmt_elf_fdpic.c | 6 +-
fs/compat_binfmt_elf.c | 5 +
3 files changed, 15 insertions(+), 2 deletions(-)
diff --git a/fs
On 06/26/2018 02:15 PM, Andrey Konovalov wrote:
@@ -325,18 +341,41 @@ void kasan_init_slab_obj(struct kmem_cache *cache, const
void *object)
void *kasan_slab_alloc(struct kmem_cache *cache, void *object, gfp_t flags)
{
- return kasan_kmalloc(cache, object, cache->object_size, flag
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