Re: [PATCH 11/12] tty/vt: conmakehash requires linux/limits.h

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On Fri, Aug 9, 2024 at 2:15 PM Masahiro Yamada <masahiroy@xxxxxxxxxx> wrote:
>
> On Wed, Aug 7, 2024 at 8:10 AM Daniel Gomez via B4 Relay
> <devnull+da.gomez.samsung.com@xxxxxxxxxx> wrote:
> >
> > From: Daniel Gomez <da.gomez@xxxxxxxxxxx>
> >
> > macOS hosts do not provide the linux/limits.h header required for
> > conmakehash. To address this, ensure that usr/include is included in
> > the conmakehash HOSTCFLAGS. This will provide the necessary header for
> > successful compilation on macOS.
> >
> > Fixes error:
> > HOSTCC  drivers/tty/vt/conmakehash - due to target missing
> >   clang -Wp,-MMD,drivers/tty/vt/.conmakehash.d -Wall
> > -Wmissing-prototypes -Wstrict-prototypes -O2 -fomit-frame-pointer
> > -std=gnu11   -I ./scripts/include     -o drivers/tty/vt/conmakehash
> > drivers/tty/vt/conmakehash.c
> > drivers/tty/vt/conmakehash.c:15:10: fatal error: 'linux/
> >    limits.h' file not found 15 | #include <linux/limits.h>    |
> >    ^~~~~~~~~~~~~~~~
>
>
> The error is reported at line 15 of drivers/tty/vt/conmakehash.c
>
>
> The line 15 is #include <stdlib.h>:
>
> https://github.com/torvalds/linux/blob/v6.11-rc1/drivers/tty/vt/conmakehash.c#L15

The patches were sent using the latest linux-next at the moment of
sending, so next-20240806.
B4 adds the baseline [1] used at the bottom.

[1] base-commit: 1e391b34f6aa043c7afa40a2103163a0ef06d179

So line 15 is linux/limits.h header in this case:
https://github.com/torvalds/linux/blob/1e391b34f6aa043c7afa40a2103163a0ef06d179/drivers/tty/vt/conmakehash.c#L15
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/drivers/tty/vt/conmakehash.c?h=1e391b34f6aa043c7afa40a2103163a0ef06d179#n15

This patch adds the header:
https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/drivers/tty/vt/conmakehash.c?h=next-20240809&id=6e20753da6bc651e02378a0cdb78f16c42098c88

>
>
> So, host programs cannot include <stdlib.h> on your build machine.
>
>
>
> drivers/tty/vt/conmakehash.c has only 5 include directives:
>
> #include <stdio.h>
> #include <stdlib.h>
> #include <sysexits.h>
> #include <string.h>
> #include <ctype.h>
>
>
> You cannot build this, your build machine cannot build anything.
>
>
>
>
>
>
>
>
>
> > 1 error generated.
> > make[5]: *** [scripts/Makefile.host:116: drivers/tty/vt/conmakehash]
> > Error 1
> > make[4]: *** [scripts/Makefile.build:485: drivers/tty/vt] Error 2
> > make[3]: *** [scripts/Makefile.build:485: drivers/tty] Error 2
> > make[2]: *** [scripts/Makefile.build:485: drivers] Error 2
> > make[1]: *** [/Volumes/src/kernel/linux-next/Makefile:1925: .] Error 2
> > make: *** [Makefile:224: __sub-make] Error 2
> >
> > Signed-off-by: Daniel Gomez <da.gomez@xxxxxxxxxxx>
> > ---
> >  drivers/tty/vt/Makefile | 1 +
> >  1 file changed, 1 insertion(+)
> >
> > diff --git a/drivers/tty/vt/Makefile b/drivers/tty/vt/Makefile
> > index 2c8ce8b592ed..d266895357e5 100644
> > --- a/drivers/tty/vt/Makefile
> > +++ b/drivers/tty/vt/Makefile
> > @@ -13,6 +13,7 @@ obj-$(CONFIG_CONSOLE_TRANSLATIONS)    += consolemap.o consolemap_deftbl.o
> >  clean-files := consolemap_deftbl.c defkeymap.c
> >
> >  hostprogs += conmakehash
> > +HOSTCFLAGS_conmakehash.o = -I$(srctree)/usr/include
> >
> >  quiet_cmd_conmk = CONMK   $@
> >        cmd_conmk = $(obj)/conmakehash $< > $@
> >
> > --
> > Git-146)
> >
> >
>
>
> --
> Best Regards
> Masahiro Yamada





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