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

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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


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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