On Mon, Jul 1, 2019 at 6:21 PM Vaibhav Gupta <vaibhavgupt...@gmail.com> wrote:
> > > 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 > > FreeBSD is not having fenv implementation for SPARC architecture. I found it in NetBSD https://github.com/NetBSD/src/blob/trunk/sys/arch/sparc/include/fenv.h https://github.com/NetBSD/src/blob/trunk/lib/libm/arch/sparc/fenv.c . I also got implementation for ARM in NetBSD https://github.com/NetBSD/src/blob/trunk/sys/arch/arm/include/fenv.h https://github.com/NetBSD/src/blob/trunk/lib/libm/arch/arm/fenv.c But FreeBSD is having updated version for ARM. > 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 >> >
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