2022-10-17 16:19:30

by Stefan Hansson

Subject: [PATCH] kbuild: use POSIX-compatible grep option

--file is a GNU extension to grep which is not available in all
implementations (such as BusyBox). Use the -f option instead which is
eqvuialent according to the GNU grep manpage[1] and is present in
POSIX[2].

[1] https://www.gnu.org/software/grep/manual/grep.html
[2] https://pubs.opengroup.org/onlinepubs/9699919799/

Signed-off-by: Stefan Hansson <[email protected]>
---
Makefile | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index c690361b393f..3513a6db66a2 100644
--- a/Makefile
+++ b/Makefile
@@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
cmd_ar_vmlinux.a = \
rm -f $@; \
$(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
- $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
+ $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -Ff $(srctree)/scripts/head-object-list.txt)

targets += vmlinux.a
vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
--
2.37.3

2022-10-17 22:14:40

by Masahiro Yamada

Subject: Re: [PATCH] kbuild: use POSIX-compatible grep option

On Tue, Oct 18, 2022 at 12:02 AM Stefan Hansson <[email protected]> wrote:
>
> --file is a GNU extension to grep which is not available in all
> implementations (such as BusyBox). Use the -f option instead which is
> eqvuialent according to the GNU grep manpage[1] and is present in
> POSIX[2].
>
> [1] https://www.gnu.org/software/grep/manual/grep.html
> [2] https://pubs.opengroup.org/onlinepubs/9699919799/


This link does not show the spec of grep.


Did you mean this?

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html




Thanks.





>
> Signed-off-by: Stefan Hansson <[email protected]>
> ---
> Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/Makefile b/Makefile
> index c690361b393f..3513a6db66a2 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
> cmd_ar_vmlinux.a = \
> rm -f $@; \
> $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
> - $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
> + $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -Ff $(srctree)/scripts/head-object-list.txt)
>
> targets += vmlinux.a
> vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
> --
> 2.37.3
>


--
Best Regards
Masahiro Yamada

2022-10-18 08:14:39

by Stefan Hansson

Subject: Re: [PATCH] kbuild: use POSIX-compatible grep option

Hi Masahiro,

On 2022-10-17 23:31, Masahiro Yamada wrote:
> On Tue, Oct 18, 2022 at 12:02 AM Stefan Hansson <[email protected]> wrote:
>>
>> --file is a GNU extension to grep which is not available in all
>> implementations (such as BusyBox). Use the -f option instead which is
>> eqvuialent according to the GNU grep manpage[1] and is present in
>> POSIX[2].
>>
>> [1] https://www.gnu.org/software/grep/manual/grep.html
>> [2] https://pubs.opengroup.org/onlinepubs/9699919799/
>
>
> This link does not show the spec of grep.
>
>
> Did you mean this?
>
> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html
>
>

Yes, sorry, that's a better link. I'm new to this. Do you want me to
send a v2 with the commit message updated?

>
>
> Thanks.
>
>
>
>
>
>>
>> Signed-off-by: Stefan Hansson <[email protected]>
>> ---
>> Makefile | 2 +-
>> 1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/Makefile b/Makefile
>> index c690361b393f..3513a6db66a2 100644
>> --- a/Makefile
>> +++ b/Makefile
>> @@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
>> cmd_ar_vmlinux.a = \
>> rm -f $@; \
>> $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
>> - $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
>> + $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -Ff $(srctree)/scripts/head-object-list.txt)
>>
>> targets += vmlinux.a
>> vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
>> --
>> 2.37.3
>>
>
>

2022-10-18 21:29:18

by Masahiro Yamada

Subject: Re: [PATCH] kbuild: use POSIX-compatible grep option

On Tue, Oct 18, 2022 at 4:23 PM Stefan Hansson <[email protected]> wrote:
>
> Hi Masahiro,
>
> On 2022-10-17 23:31, Masahiro Yamada wrote:
> > On Tue, Oct 18, 2022 at 12:02 AM Stefan Hansson <[email protected]> wrote:
> >>
> >> --file is a GNU extension to grep which is not available in all
> >> implementations (such as BusyBox). Use the -f option instead which is
> >> eqvuialent according to the GNU grep manpage[1] and is present in
> >> POSIX[2].
> >>
> >> [1] https://www.gnu.org/software/grep/manual/grep.html
> >> [2] https://pubs.opengroup.org/onlinepubs/9699919799/
> >
> >
> > This link does not show the spec of grep.
> >
> >
> > Did you mean this?
> >
> > https://pubs.opengroup.org/onlinepubs/9699919799/utilities/grep.html
> >
> >
>
> Yes, sorry, that's a better link. I'm new to this. Do you want me to
> send a v2 with the commit message updated?

No worries.
I applied the patch with the link replaced.


Thanks.





> >
> >
> > Thanks.
> >
> >
> >
> >
> >
> >>
> >> Signed-off-by: Stefan Hansson <[email protected]>
> >> ---
> >> Makefile | 2 +-
> >> 1 file changed, 1 insertion(+), 1 deletion(-)
> >>
> >> diff --git a/Makefile b/Makefile
> >> index c690361b393f..3513a6db66a2 100644
> >> --- a/Makefile
> >> +++ b/Makefile
> >> @@ -1218,7 +1218,7 @@ quiet_cmd_ar_vmlinux.a = AR $@
> >> cmd_ar_vmlinux.a = \
> >> rm -f $@; \
> >> $(AR) cDPrST $@ $(KBUILD_VMLINUX_OBJS); \
> >> - $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -F --file=$(srctree)/scripts/head-object-list.txt)
> >> + $(AR) mPiT $$($(AR) t $@ | head -n1) $@ $$($(AR) t $@ | grep -Ff $(srctree)/scripts/head-object-list.txt)
> >>
> >> targets += vmlinux.a
> >> vmlinux.a: $(KBUILD_VMLINUX_OBJS) scripts/head-object-list.txt autoksyms_recursive FORCE
> >> --
> >> 2.37.3
> >>
> >
> >



--
Best Regards
Masahiro Yamada