sis/gdb on Cygwin

[Joel Sherrill]

I thought I saw a patch pushed yesterday afternoon but a fresh build today
shows the same
breakage.

Jiri .. feel free to push a fix for this and I will test when I get back.

On Thu, Aug 8, 2019 at 2:37 PM Joel Sherrill <joel at rtems.org> wrote:

> This is really easy to fix and hopefully Jiri can produce a patch since I
> am about to leave for the weekend.
>
> The git master has this in erc32 configure.ac. It should be in both sis/
> configure.ac and erc32/configure.ac
> in our gdb 8.2.1 with patches.
>
> # Keep in sync with gdb's configure.ac list.
> AC_SEARCH_LIBS(tgetent, [termcap tinfo curses ncurses],
>   [TERMCAP=$ac_cv_search_tgetent], [TERMCAP=""])
> if test x$sim_cv_os_cygwin = xyes; then
>   TERMCAP="${TERMCAP} -luser32"
> fi
> AC_SUBST(TERMCAP)
>
> The gdb version we are using has some old hack-ish code specific to Cygwin
> and termcap which is
> now not needed. Unfortunately, that same code is in sis/configure.ac.
>
> Please and thank you. :)
>
> --joel
>
>
> On Wed, Aug 7, 2019 at 8:37 PM Chris Johns <chrisj at rtems.org> wrote:
>
>> On 8/8/19 5:46 am, Joel Sherrill wrote:
>> > On Wed, Aug 7, 2019 at 2:33 PM Jiri Gaisler <jiri at gaisler.se
>> > <mailto:jiri at gaisler.se>> wrote:
>> >
>> >
>> >     On 8/7/19 8:22 PM, Joel Sherrill wrote:
>> >     > Hi
>> >     >
>> >     > Looks like Cygwin has libncurses but doesn't install the
>> libtermcap.
>> >     > compatibility library.
>> >     >
>> >     > https://cygwin.com/ml/cygwin/2010-10/msg00018.html  says to link
>> >     > against ncurses.
>> >     >
>> >     >  gdb-8.2.1/sim/sis/../.. `echo -Dsparc-rtems5 | sed s/-rtems.//`
>>   -I.
>> >     > -I../../../gdb-8.2.1/sim/sis -I../common
>> >     > -I../../../gdb-8.2.1/sim/sis/../common -I../../include
>> >     > -I../../../gdb-8.2.1/sim/sis/../../include -I../../bfd
>> >     > -I../../../gdb-8.2.1/sim/sis/../../bfd -I../../opcodes
>> >     > -I../../../gdb-8.2.1/sim/sis/../../opcodes  -g -O2 -o sis \
>> >     >   sis.o exec.o erc32.o func.o help.o float.o grlib.o leon3.o
>> leon2.o
>> >     >  ../../bfd/libbfd.a ../../opcodes/libopcodes.a
>> >     >  ../../libiberty/libiberty.a -L../../zlib -lz
>> >     > ../../readline/libreadline.a `if test -r
>> >     > ../../libtermcap/libtermcap.a; then echo
>> >     > ../../libtermcap/libtermcap.a; else echo -ltermcap; fi` -luser32
>> -lm
>> >     >
>> /usr/lib/gcc/x86_64-pc-cygwin/7.3.0/../../../../x86_64-pc-cygwin/bin/ld:
>> >     > cannot find -ltermcap
>> >     > collect2: error: ld returned 1 exit status
>> >     >
>> >     > Is the solution to just add -lncurses to the list of libraries it
>> >     > looks for?
>> >     >
>> >     > Hopefully someone has some insight into this one.
>> >
>> >     How about a patch that disables building sis inside gdb and only
>> use the
>> >     newer stand-alone sis version?
>>
>> +1
>>
>> > As long as the rtems tester supports it, I am cool with that.
>>
>> It should. Please find the existing `sis` run or gdb INI configuration
>> files and
>> replace with SIS. I suspect you can get down to one INI config rather
>> than the
>> run and gdb versions we currently have.
>>
>> > My goal is to begin to do regular builds and test sweeps on Cygwin
>> > and Mingw and report to build at . So the RSB and tester need to work. :)
>> >
>>
>> Nice.
>>
>> Chris
>>
>
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