[PATCH v1] Port ndbm

[Joel Sherrill]

On Fri, Jul 26, 2019 at 5:34 AM Vaibhav Gupta <vaibhavgupta40@gmail.com>
wrote:

> On Fri, Jul 26, 2019, 3:49 PM Richard Earnshaw (lists) <
> Richard.Earnshaw@arm.com> wrote:
>
> >
> >
> > On 26/07/2019 10:09, Vaibhav Gupta wrote:
> > > On Fri, Jul 26, 2019, 2:31 PM Richard Earnshaw (lists) <
> > > Richard.Earnshaw@arm.com> wrote:
> > >
> > >>
> > >>
> > >> On 24/07/2019 17:49, Corinna Vinschen wrote:
> > >>> On Jul 24 10:47, Joel Sherrill wrote:
> > >>>> On Wed, Jul 24, 2019 at 2:23 AM Corinna Vinschen <
> vinschen@redhat.com
> > >
> > >>>> wrote:
> > >>>>
> > >>>>> On Jul 10 14:25, Vaibhav Gupta wrote:
> > >>>>>> ---
> > >>>>>>    newlib/libc/include/ndbm.h     |  93 ++++++++++++++
> > >>>>>>    newlib/libc/search/Makefile.am |   1 +
> > >>>>>>    newlib/libc/search/ndbm.c      | 217
> > >> +++++++++++++++++++++++++++++++++
> > >>>>>>    3 files changed, 311 insertions(+)
> > >>>>>>    create mode 100644 newlib/libc/include/ndbm.h
> > >>>>>>    create mode 100644 newlib/libc/search/ndbm.c
> > >>>>>
> > >>>>> Pushed.
> > >>>>>
> > >>>>
> > >>>> Thank you.
> > >>>>
> > >>>> It touched a Makefile.am. Doesn't something need to be regenerated?
> > >>>
> > >>> Oh, right.  Done.
> > >>>
> > >>>
> > >>> Corinna
> > >>>
> > >>
> > >> I'm now seeing a build error on arm-eabi (though interestingly, not
> > >> AArch64):
> > >>
> > >> /work/rearnsha/scratch/nightly/arm/trunk/./gcc/xgcc
> > >> -B/work/rearnsha/scratch/nightly/arm/trunk/./gcc/ -nostdinc
> > >> -B/work/rearnsha/scratch/nightly/arm/trunk/arm-eabi/thumb/newlib/
> > >> -isystem
> > >>
> >
> /work/rearnsha/scratch/nightly/arm/trunk/arm-eabi/thumb/newlib/targ-include
> > >>
> > >> -isystem
> > >> /work/rearnsha/gnusrc/nightly/gcc-cross/trunk/newlib/libc/include
> > >> -B/work/rearnsha/scratch/nightly/arm/trunk/arm-eabi/thumb/libgloss/arm
> > >>
> >
> -L/work/rearnsha/scratch/nightly/arm/trunk/arm-eabi/thumb/libgloss/libnosys
> > >>
> > >> -L/work/rearnsha/gnusrc/nightly/gcc-cross/trunk/libgloss/arm
> > >> -B/work/rearnsha/scratch/nightly/arm/trunk/testinstall/arm-eabi/bin/
> > >> -B/work/rearnsha/scratch/nightly/arm/trunk/testinstall/arm-eabi/lib/
> > >> -isystem
> > >> /work/rearnsha/scratch/nightly/arm/trunk/testinstall/arm-eabi/include
> > >> -isystem
> > >>
> > /work/rearnsha/scratch/nightly/arm/trunk/testinstall/arm-eabi/sys-include
> > >> -L/work/rearnsha/scratch/nightly/arm/trunk/./ld  -mthumb
> > >> -DPACKAGE_NAME=\"newlib\" -DPACKAGE_TARNAME=\"newlib\"
> > >> -DPACKAGE_VERSION=\"3.1.0\" -DPACKAGE_STRING=\"newlib\ 3.1.0\"
> > >> -DPACKAGE_BUGREPORT=\"\" -DPACKAGE_URL=\"\" -I.
> > >> -I/work/rearnsha/gnusrc/nightly/gcc-cross/trunk/newlib/libc/search
> > >> -fno-builtin -D_COMPILING_NEWLIB -DARM_RDI_MONITOR -DHAVE_INIT_FINI
> > >> -g -O2  -mthumb -c -o lib_a-ndbm.o `test -f 'ndbm.c' || echo
> > >>
> >
> '/work/rearnsha/gnusrc/nightly/gcc-cross/trunk/newlib/libc/search/'`ndbm.c
> > >>
> /work/rearnsha/gnusrc/nightly/gcc-cross/trunk/newlib/libc/search/ndbm.c:
> > >> In function ‘dbm_open’:
> > >>
> >
> /work/rearnsha/gnusrc/nightly/gcc-cross/trunk/newlib/libc/search/ndbm.c:67:12:
> > >>
> > >> error: ‘MAXPATHLEN’ undeclared (first use in this function)
> > >>      67 |  char path[MAXPATHLEN];
> > >>         |            ^~~~~~~~~~
> > >>
> > >> Does this file need to include sys/param.h?
> > >>
> > > Yah. sys/param.h has the macro definition of MAXPATHLEN
> > > .
> > > I guess ndbm.c has included it.
> >
> > Well, not included it.
> >
> I checked my patch, ndbm.c is including sys/param.h
> .
> Or you mean that you have not included it?
>

I think the issue is that there is an arm specific sys/param.h which does
not define MAXPATHLEN.

$ find . -name param.h | xargs -e grep MAXPATHLEN
./libc/include/sys/param.h:#define MAXPATHLEN PATH_MAX
./libc/sys/phoenix/sys/param.h:#define MAXPATHLEN       PATHSIZE
./libc/sys/rtems/include/sys/param.h: * MAXPATHLEN defines the longest
permissible path length after expanding
./libc/sys/rtems/include/sys/param.h:#define    MAXPATHLEN      PATH_MAX

$ find . -name param.h | grep sys/param
./libc/include/sys/param.h
./libc/sys/linux/sys/param.h
./libc/sys/phoenix/sys/param.h
./libc/sys/rtems/include/sys/param.h
./libc/sys/arm/sys/param.h

Based on those commands, I the file ./libc/sys/arm/sys/param.h is the
culprit. It is very minimal. It looks like a simple out of date copy of
libc/include/sys/param.h.

My proposed fix is to delete libc/include/sys/arm/param.h. Does that work
for you Richard?

--joel


>
> Vaibhav Gupta
>
> >
> > R.
> > >
> > > Vaibhav Gupta
> > >
> > >>
> > >>
> >
>