On Tue, Mar 16, 2021 at 06:54:21PM +0000, Nikos Nikoleris wrote:
>
> Hey Drew,
>
> On 16/03/2021 17:03, Andrew Jones wrote:
> > On Tue, Mar 16, 2021 at 03:24:01PM +0000, Nikos Nikoleris wrote:
> > > This set of patches fixes the way we parse the stdout-path which is
> > > used to set up the console. Prior to this, the code ignored the fact
> > > that stdout-path is made of the path to the uart node as well as
> > > parameters and as a result it would fail to find the relevant DT
> > > node. In addition to minor fixes in the device tree code, this series
> > > pulls a new version of libfdt from upstream.
> > >
> > > Thanks,
> > >
> > > Nikos
> > >
> > > Nikos Nikoleris (4):
> > > lib/string: add strnlen and strrchr
> > > libfdt: Pull v1.6.0
> > > Makefile: Avoid double definition of libfdt_clean
> > > devicetree: Parse correctly the stdout-path
> > >
> > > lib/libfdt/README | 3 +-
> > > Makefile | 12 +-
> > > lib/libfdt/Makefile.libfdt | 10 +-
> > > lib/libfdt/version.lds | 24 +-
> > > lib/libfdt/fdt.h | 53 +--
> > > lib/libfdt/libfdt.h | 766 +++++++++++++++++++++++++-----
> > > lib/libfdt/libfdt_env.h | 109 ++---
> > > lib/libfdt/libfdt_internal.h | 206 +++++---
> > > lib/string.h | 5 +-
> > > lib/devicetree.c | 15 +-
> > > lib/libfdt/fdt.c | 200 +++++---
> > > lib/libfdt/fdt_addresses.c | 101 ++++
> > > lib/libfdt/fdt_check.c | 74 +++
> > > lib/libfdt/fdt_empty_tree.c | 48 +-
> > > lib/libfdt/fdt_overlay.c | 881 +++++++++++++++++++++++++++++++++++
> > > lib/libfdt/fdt_ro.c | 512 +++++++++++++++-----
> > > lib/libfdt/fdt_rw.c | 231 +++++----
> > > lib/libfdt/fdt_strerror.c | 53 +--
> > > lib/libfdt/fdt_sw.c | 297 ++++++++----
> > > lib/libfdt/fdt_wip.c | 90 ++--
> > > lib/string.c | 30 +-
> > > 21 files changed, 2890 insertions(+), 830 deletions(-)
> > > create mode 100644 lib/libfdt/fdt_addresses.c
> > > create mode 100644 lib/libfdt/fdt_check.c
> > > create mode 100644 lib/libfdt/fdt_overlay.c
> > >
> > > --
> > > 2.25.1
> > >
> >
> > Just tried to give this a test run, but I couldn't compile it on my x86
> > Fedora machine with my cross compiler:
> >
> > gcc-aarch64-linux-gnu-9.2.1-3.fc32.1.x86_64
> >
> > Every file that includes libfdt_env.h gives me a message like this
> >
> > In file included from lib/libfdt/fdt_overlay.c:7:
> > lib/libfdt/libfdt_env.h:13:10: fatal error: stdlib.h: No such file or directory
> > 13 | #include <stdlib.h>
> > | ^~~~~~~~~~
> > compilation terminated
> >
> > So I commented out the #include line to see why it was there. We need
> > strtoul(). I quick hacked an incomplete one (below) and was able to
> > compile and run tests. However I see that 'make clean' is leaving behind
> > several libfdt files
> >
> Thanks for testing and for the fixes!
>
> For some reason this isn't causing problems in my setup. gcc is
> eliminating unused symbols and it doesn't need to link with strtoul(). I
> see how this is a problem though and I will include your fix in the next
> version.
Please write a proper strtoul(). Mine was just a minimal hack so I could
progress and see if there was anything else to comment on.
Thanks,
drew
>
> > $ git clean -ndx
> > Would remove lib/libfdt/.fdt.d
> > Would remove lib/libfdt/.fdt_addresses.d
> > Would remove lib/libfdt/.fdt_check.d
> > Would remove lib/libfdt/.fdt_empty_tree.d
> > Would remove lib/libfdt/.fdt_overlay.d
> > Would remove lib/libfdt/.fdt_ro.d
> > Would remove lib/libfdt/.fdt_rw.d
> > Would remove lib/libfdt/.fdt_strerror.d
> > Would remove lib/libfdt/.fdt_sw.d
> > Would remove lib/libfdt/.fdt_wip.d
> >
>
> Sorry for that, I will fix in the Makefile.
>
> Thanks,
>
> Nikos
>
> > Thanks,
> > drew
> >
> > diff --git a/lib/stdlib.h b/lib/stdlib.h
> > new file mode 100644
> > index 000000000000..23a3f318d526
> > --- /dev/null
> > +++ b/lib/stdlib.h
> > @@ -0,0 +1,4 @@
> > +#ifndef _STDLIB_H_
> > +#define _STDLIB_H_
> > +unsigned long int strtoul(const char *nptr, char **endptr, int base);
> > +#endif
> > diff --git a/lib/string.c b/lib/string.c
> > index 9258625c3d15..2336559cd5a1 100644
> > --- a/lib/string.c
> > +++ b/lib/string.c
> > @@ -6,6 +6,7 @@
> > */
> >
> > #include "libcflat.h"
> > +#include "stdlib.h"
> >
> > size_t strlen(const char *buf)
> > {
> > @@ -161,7 +162,7 @@ void *memchr(const void *s, int c, size_t n)
> > return NULL;
> > }
> >
> > -long atol(const char *ptr)
> > +static long __atol(const char *ptr, char **endptr)
> > {
> > long acc = 0;
> > const char *s = ptr;
> > @@ -189,9 +190,23 @@ long atol(const char *ptr)
> > if (neg)
> > acc = -acc;
> >
> > + if (endptr)
> > + *endptr = (char *)s;
> > +
> > return acc;
> > }
> >
> > +long atol(const char *ptr)
> > +{
> > + return __atol(ptr, NULL);
> > +}
> > +
> > +unsigned long int strtoul(const char *nptr, char **endptr, int base)
> > +{
> > + assert(base == 10);
> > + return __atol(nptr, endptr);
> > +}
> > +
> > extern char **environ;
> >
> > char *getenv(const char *name)
> >
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