On Mon, Jul 1, 2019 at 6:18 PM Aditya Upadhyay <aadit0...@gmail.com> wrote:
> On Mon, Jul 1, 2019 at 6:10 PM Vaibhav Gupta <vaibhavgupt...@gmail.com> > wrote: > > > > > > > > On Mon, Jul 1, 2019 at 6:07 PM Aditya Upadhyay <aadit0...@gmail.com> > wrote: > >> > >> On Mon, Jul 1, 2019 at 5:58 PM Joel Sherrill <j...@rtems.org> wrote: > >> > > >> > If you have finished ndbm, please do not attempt to write memcpy for > SPARC. It is not as important as having fenv.h methods. We have a default > memcpy implementation for all architectures. The hope was to find an > already implemented optimized version with history for the SPARC. But so > far we haven't found one with appropriate license. It will be difficult to > implement, ensure correctness, and really gain speed. > >> > > >> > So work on filling a gap in what APIs are provided. Fenv.h > >> > > >> > Also we need to work on merging your ndbm work. > >> > > >> Newlib-Cygwin uses db_local.h and it was ported from FreeBSD. Since > >> that, A lot thing has changed. > >> If we replace this db_local.h to current freeBSD db.h, then we also > >> need to make changes in other file such > >> as hash.c. > >> > >> What is your view on this? Shall we ask this on newlib mailing list? > > > > I stepped up for this after the suggestion of gedare. Planned to update > whole of search directory. > > I asked this query on newlib, but they haven't replied yet. We can > re-send this query. > > Yeah. You can resend that mail. Did you find any porting source for > fenv methods? > Just now started looking. > If not, Then you can take a look here: > https://github.com/freebsd/freebsd/blob/master/lib/msun/arm/fenv.c Thanks :D !! > > > >> > >> > >> > --joel > >> > > >> > On Mon, Jul 1, 2019, 5:54 AM Vaibhav Gupta <vaibhavgupt...@gmail.com> > wrote: > >> >> > >> >> Hello, > >> >> I am reading about memcpy to write it for newlib. > >> >> Should I also write wmemcpy along with it? > https://pubs.opengroup.org/onlinepubs/009695399/functions/wmemcpy.html > >> >> . > >> >> Regarding ndbm reference. RSB has not generated library files. > >> >> - but in newlib source tree, when I compiled newlib, while porting > ndbm, it generated lib_a-ndbm.o object file. > >> >> - I am planning to use that object file to compile ndbm testsuite. > >> >> . > >> >> When Object file and C file are present in same directory, we can > use : > >> >> $ gcc trial.c mylib.o > >> >> But I am not able to find out, how to use this in Makefile.am. > >> >> LDADD replaces all global variables while compiling. > >> >> > >> >> I tried various codes, but could not solve it. I just want to use > the object file (lib_a-ndbm.o) > >> >> created while building newlib, to compile ndbm testsuite. > >> >> > >> >> I need guidance for this. > >> >> > >> >> Vaibhav Gupta > >> >> > >> >> On Fri, Jun 28, 2019 at 9:57 PM Gedare Bloom <ged...@rtems.org> > wrote: > >> >>> > >> >>> On Fri, Jun 28, 2019 at 7:20 AM Vaibhav Gupta < > vaibhavgupt...@gmail.com> wrote: > >> >>> > > >> >>> > > >> >>> > > >> >>> > On Fri, Jun 28, 2019, 6:19 PM Joel Sherrill <j...@rtems.org> > wrote: > >> >>> >> > >> >>> >> > >> >>> >> > >> >>> >> On Fri, Jun 28, 2019, 8:40 AM Vaibhav Gupta < > vaibhavgupt...@gmail.com> wrote: > >> >>> >>> > >> >>> >>> > >> >>> >>> > >> >>> >>> On Fri, Jun 28, 2019, 5:57 PM Joel Sherrill <j...@rtems.org> > wrote: > >> >>> >>>> > >> >>> >>>> You need to add the library to the gcc command that links the > program. If the libndbm is in the library search path, add -lndbm. > >> >>> >>>> > >> >>> >>>> I don't recall the exact Makefile variable to set for this to > show up. Look at the paranoia sample. It should be doing this with -lm. > >> >>> >>>> > >> >>> >>>> --joel > >> >>> >>> > >> >>> >>> Okay, I will try this! > >> >>> >> > >> >>> >> > >> >>> >> The following web page is a pretty good description of building > a library using a native GCC and linking it into a program. It includes > some of the theory going on so this might help you. > >> >>> >> > >> >>> >> > https://www.cs.swarthmore.edu/~newhall/unixhelp/howto_C_libraries.html > >> >>> >> > >> >>> >> Guys.. this comes up periodically, even though this is really > basic tool usage to me, is this something we should provide some guidance > on? > >> >>> > > >> >>> > Actually, i tried this before, but I cannot find libndbm in my > development directory. I guess it is not generated. > >> >>> > . > >> >>> > One thing I can do is, the newlib-cygwin i compiled while porting > ndbm, it generated ndbm library. I can use that. > >> >>> > >> >>> Yes, the library should be 'bundled' with the updated compiler > >> >>> toolchain. You need to be sure you are using this toolchain. Is it > >> >>> what you installed to /home/varodek/development/rtems/5 ? > >> >>> > >> >>> Gedare >
_______________________________________________ devel mailing list devel@rtems.org http://lists.rtems.org/mailman/listinfo/devel
