sis/gdb on Cygwin

[Jiri Gaisler]

On 8/9/19 3:24 PM, Joel Sherrill wrote:
> 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.
The problem right now is that RSB has some breakage which causes the
stand-alone version of sis not to be installed. If I push the patch,
then no sis at all will be installed. I will try to find some time to
look at the cygwin build problem, until Chris gets some time to look at
the RSB issue ...
>
> On Thu, Aug 8, 2019 at 2:37 PM Joel Sherrill <joel at rtems.org
> <mailto: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
>     <http://configure.ac>. It should be in both sis/configure.ac
>     <http://configure.ac> and erc32/configure.ac <http://configure.ac> 
>     in our gdb 8.2.1 with patches.
>
>     # Keep in sync with gdb's configure.ac <http://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 <http://configure.ac>. 
>
>     Please and thank you. :)
>
>     --joel
>
>
>     On Wed, Aug 7, 2019 at 8:37 PM Chris Johns <chrisj at rtems.org
>     <mailto: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>
>         > <mailto: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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