From: Christophe Leroy
In order to allow using objtool on cross-built kernels,
determine size of long from elf data instead of using
sizeof(long) at build time.
For the time being this covers only mcount.
Signed-off-by: Christophe Leroy
---
tools/objtool/check.c | 16
From: Christophe Leroy
Some architectures like powerpc support both endianness, it's
therefore not possible to fix the endianness via arch/endianness.h
because there is no easy way to get the target endianness at
build time.
Use the endianness recorded in the file objtool is working on.
From: Christophe Leroy
find_insn() will return NULL in case of failure. Check insn in order
to avoid a kernel Oops for NULL pointer dereference.
Signed-off-by: Christophe Leroy
---
tools/objtool/check.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/objtool/check.c
Do not run objtool on VDSO files, by using
OBJECT_FILES_NON_STANDARD
Suggested-by: Christophe Leroy
Signed-off-by: Sathvika Vasireddy
---
arch/powerpc/kernel/vdso/Makefile | 2 ++
1 file changed, 2 insertions(+)
diff --git a/arch/powerpc/kernel/vdso/Makefile
From: Christophe Leroy
Fix several annotations in assembly files on PPC32.
Signed-off-by: Christophe Leroy
[Sathvika Vasireddy: Changed subject line from objtool/powerpc: Activate
objtool on PPC32
to powerpc: Fix objtool unannotated intra-function call warnings on PPC32, and
removed
Kconfig
With objtool enabled, below warnings are seen when trying to build:
drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: aes_p8_set_encrypt_key+0x44:
unannotated intra-function call
drivers/crypto/vmx/aesp8-ppc.o: warning: objtool: .text+0x2448: unannotated
intra-function call
objtool throws the following unannotated intra-function call
warnings:
arch/powerpc/kernel/entry_64.o: warning: objtool: .text+0x4: unannotated
intra-function call
arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0xe64:
unannotated intra-function call
objtool throws unannotated intra-function call warnings
in the following assembly files:
arch/powerpc/kernel/vector.o: warning: objtool: .text+0x53c: unannotated
intra-function call
arch/powerpc/kvm/book3s_hv_rmhandlers.o: warning: objtool: .text+0x60:
unannotated intra-function call
objtool is throwing *unannotated intra-function call* warnings in
.c files with a few instructions that are marked unreachable. The
problem comes from the annotate_unreachable() macro that is
called by unreachable(). This annotation is adding a call to a
function with size 0, and objtool does not
This patchset enables and implements objtool --mcount
option on powerpc. This applies atop powerpc/merge branch.
Changelog:
v2:
* Change subject of patch 01/16
* As suggested by Christophe Leroy, add barrier_before_unreachable()
before __builtin_unreachable() to work around a gcc problem.
* Fix
Powerpc instructions must be word-aligned. Currently,
there is an alignment of 16 bytes (by default), and it is
much more than what is required for powerpc (4 bytes).
The default expansion of __ALIGN() macro is:
#define __ALIGN .align 4,0x90
Since Powerpc Linux does not require a 16 byte
Hi Christophe,
On 26/08/22 15:48, Christophe Leroy wrote:
Le 08/08/2022 à 13:48, Sathvika Vasireddy a écrit :
objtool is throwing *unannotated intra-function call*
warnings with a few instructions that are marked
unreachable. Replace unreachable() with __builtin_unreachable()
to fix these
> -Original Message-
> From: Christophe Leroy
> Sent: Sunday, August 28, 2022 2:33 AM
> To: Elliott, Robert (Servers) ; Nayna
> ; Andrew Donnellan
> Cc: linuxppc-dev@lists.ozlabs.org
> Subject: Re: [PATCH v2 00/10] crypto: Kconfig - simplify menus and help
> text
>
> Hi,
>
> Le
https://bugzilla.kernel.org/show_bug.cgi?id=215622
Erhard F. (erhar...@mailbox.org) changed:
What|Removed |Added
Status|NEW |RESOLVED
Le 28/08/2022 à 19:41, Pali Rohár a écrit :
> On Sunday 28 August 2022 17:39:25 Christophe Leroy wrote:
>> Le 28/08/2022 à 19:33, Christophe Leroy a écrit :
>>>
>>>
>>> Le 28/08/2022 à 11:56, Pali Rohár a écrit :
When CONFIG_TARGET_CPU is specified then pass its value to the compiler
On Sunday 28 August 2022 17:39:25 Christophe Leroy wrote:
> Le 28/08/2022 à 19:33, Christophe Leroy a écrit :
> >
> >
> > Le 28/08/2022 à 11:56, Pali Rohár a écrit :
> >> When CONFIG_TARGET_CPU is specified then pass its value to the compiler
> >> -mcpu option. This fixes following build error
Le 28/08/2022 à 19:33, Christophe Leroy a écrit :
>
>
> Le 28/08/2022 à 11:56, Pali Rohár a écrit :
>> When CONFIG_TARGET_CPU is specified then pass its value to the compiler
>> -mcpu option. This fixes following build error when building kernel with
>> powerpc e500 SPE capable cross
Le 28/08/2022 à 11:56, Pali Rohár a écrit :
> When CONFIG_TARGET_CPU is specified then pass its value to the compiler
> -mcpu option. This fixes following build error when building kernel with
> powerpc e500 SPE capable cross compilers:
>
> BOOTAS arch/powerpc/boot/crt0.o
>
When CONFIG_TARGET_CPU is specified then pass its value to the compiler
-mcpu option. This fixes following build error when building kernel with
powerpc e500 SPE capable cross compilers:
BOOTAS arch/powerpc/boot/crt0.o
powerpc-linux-gnuspe-gcc: error: unrecognized argument in option
On Sunday 28 August 2022 07:23:39 Christophe Leroy wrote:
> Le 27/08/2022 à 21:00, Pali Rohár a écrit :
> > On Saturday 27 August 2022 20:36:08 Pali Rohár wrote:
> >> On Saturday 27 August 2022 18:32:42 Christophe Leroy wrote:
> >>> Le 27/08/2022 à 19:36, Pali Rohár a écrit :
> On Saturday 27
Hi,
Le 27/08/2022 à 22:06, Elliott, Robert (Servers) a écrit :
> (adding Christophe, per
> bba496656a73fc1 ("powerpc/32: Fix boot failure with GCC latent entropy
> plugin")
>
>
> Adding libmpc-devel gets all the architectures building except powerpc.
>
> (I also installed gcc-plugins-devel to
Le 27/08/2022 à 21:00, Pali Rohár a écrit :
> On Saturday 27 August 2022 20:36:08 Pali Rohár wrote:
>> On Saturday 27 August 2022 18:32:42 Christophe Leroy wrote:
>>> Le 27/08/2022 à 19:36, Pali Rohár a écrit :
On Saturday 27 August 2022 17:31:10 Christophe Leroy wrote:
> Le 27/08/2022
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