[PATCH] include: fix 'ulong' definition on musl targets

[Masahiro Yamada]

On Mon, Dec 30, 2019 at 8:39 PM Sergei Trofimovich <slyfox at gentoo.org> wrote:
>
> On Mon, 30 Dec 2019 20:24:08 +0900
> Masahiro Yamada <masahiroy at kernel.org> wrote:
>
> > On Tue, Dec 17, 2019 at 9:37 PM Sergei Trofimovich <slyfox at gentoo.org> wrote:
> > >
> > > The build failure was originally reported on arm64-musl
> > > target at https://bugs.gentoo.org/703132. Here is the amd64-musl
> > > variant:
> > >
> > > ```
> > > $ LANG=C make CROSS_COMPILE=x86_64-gentoo-linux-musl- tools-only_defconfig -j$(nproc)
> > > $ LANG=C make CROSS_COMPILE=x86_64-gentoo-linux-musl- tools-all            -j$(nproc)
> > > ...
> > > In file included from tools/env/../../env/flags.c:7,
> > >                  from tools/env/env_flags.c:1:
> > > include/env.h:159:1: error: unknown type name 'ulong'; did you mean 'long'?
> > >   159 | ulong env_get_ulong(const char *name, int base, ulong default_val);
> > >       | ^~~~~
> > >       | long
> > > ```
> > >
> > > Note: 'ulong' is not defined there.
> > >
> > > On glibc 'ulong' comes from <sys/types.h>:
> > >
> > > ```c
> > > /* Old compatibility names for C types.  */
> > > typedef unsigned long int ulong;
> > > ```
> > >
> > > On musl it comes from <sys/types.h> as well but from under different guards:
> > >
> > > ```c
> > > typedef unsigned long u_long, ulong;
> > > ```
> > >
> > > The change inlines 'ulong' define similar to 'uint' define.
> > >
> > > Bug: https://bugs.gentoo.org/703132
> > > Signed-off-by: Sergei Trofimovich <slyfox at gentoo.org>
> > > ---
> > >  include/compiler.h   | 2 +-
> > >  include/u-boot/crc.h | 2 ++
> > >  2 files changed, 3 insertions(+), 1 deletion(-)
> > >
> > > diff --git a/include/compiler.h b/include/compiler.h
> > > index 29507f9840..90372f239c 100644
> > > --- a/include/compiler.h
> > > +++ b/include/compiler.h
> > > @@ -46,7 +46,6 @@
> > >  # include <byteswap.h>
> > >  #elif defined(__MACH__) || defined(__FreeBSD__)
> > >  # include <machine/endian.h>
> > > -typedef unsigned long ulong;
> > >  #endif
> > >  #ifdef __FreeBSD__
> > >  # include <sys/endian.h> /* htole32 and friends */
> > > @@ -66,6 +65,7 @@ typedef uint8_t __u8;
> > >  typedef uint16_t __u16;
> > >  typedef uint32_t __u32;
> > >  typedef unsigned int uint;
> > > +typedef unsigned long ulong;
> > >
> > >  #define uswap_16(x) \
> > >         ((((x) & 0xff00) >> 8) | \
> > > diff --git a/include/u-boot/crc.h b/include/u-boot/crc.h
> > > index 1086d2168c..b96b50d98b 100644
> > > --- a/include/u-boot/crc.h
> > > +++ b/include/u-boot/crc.h
> > > @@ -8,6 +8,8 @@
> > >  #ifndef _UBOOT_CRC_H
> > >  #define _UBOOT_CRC_H
> > >
> > > +#include <compiler.h> /* unit definition */
> > > +
> > >  /**
> > >   * crc8() - Calculate and return CRC-8 of the data
> > >   *
> >
> >
> > From the build log, 'ulong' in include/env.h is causing the error.
> > So, 664689f1dcb178ccb36842d0564ea8a6e8a7e648
> > added <compiler.h> to it.
> >
> >
> > I do not see 'ulong' in include/u-boot/crc.h at all.
> > Why do you need to touch include/u-boot/crc.h ?
>
> Oh, I forgot to post another build failure in commit message:
>
> ```
> include/u-boot/crc.h:37:44: error: unknown type name 'uint'; did you mean 'int'?
>    37 | void crc16_ccitt_wd_buf(const uint8_t *in, uint len,
>       |                                            ^~~~
>       |                                            int
> ```
>

Maybe, this can be split into two patches ?
I think this patch is addressing two issues.



-- 
Best Regards
Masahiro Yamada