Hello everyone, After adding the files and compiling. I am getting a few errors which I am not able to rectify. If you could take a look and tell how to sort them.
link to newlib's git repo: https://github.com/eshandhawan51/newlib-cygwin/tree/add_fenv_support errors : In file included from /home/eshan/development/newlib/newlib-cygwin/newlib/libc/include/fenv.h:15:0, from ../../../../../../newlib-cygwin/newlib/libm/fenv/feclearexcept.c:57: /home/eshan/development/newlib/c-arm-rtems5-newlib/arm-rtems5/thumb/newlib/targ-include/sys/fenv.h:82:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'extern' extern const fenv_t *_fe_dfl_env; ^~~~~~ In file included from ../../../../../../newlib-cygwin/newlib/libm/fenv/feclearexcept.c:57:0: /home/eshan/development/newlib/newlib-cygwin/newlib/libc/include/fenv.h:22:1: error: expected '=', ',', ';', 'asm' or '__attribute__' before 'int' int feclearexcept(int excepts); ^~~ thanks -Eshan On Sat, May 9, 2020 at 2:53 AM Joel Sherrill <j...@rtems.org> wrote: > > > On Thu, May 7, 2020 at 1:33 PM Eshan Dhawan <eshandhawa...@gmail.com> > wrote: > >> Hello everyone, >> This the tread to discuss adding fenv support for ARM architecture in >> newlib. >> >> Link to previous thread: >> https://lists.rtems.org/pipermail/devel/2020-March/058473.html >> >> ---FreeBSD Source >> # https://github.com/freebsd/freebsd/tree/master/lib/msun/arm >> # https://github.com/freebsd/freebsd/blob/master/sys/arm/include/ieeefp.h >> ---NetBSD Source >> # https://github.com/NetBSD/src/tree/trunk/lib/libm/arch/arm >> >> --- Musl has no implementation for fenv support for ARM in it >> >> After going through the implementations both FreeBSD and NetBSD have a >> stub implementation. >> But then FreeBSD implementation seems to be more portable compared to >> that in NetBSD. >> >> Should I start porting it from FreeBSD? >> And which ARM BSP should I use for testing the changes? >> Currently, I have xilinx_zynq_a9_qemu build >> > > I think the FreeBSD implementation is the one to use. It looks to support > hard and soft floating point implementations. > > I think the fenv.h file there will have to be worked on so some of the > contents go into sys or machine/fenv.h. There is a portable fenv.h. > > >> >> There would also be a requirement to discuss where to place the files in >> Newlib. >> > > Not much to discuss. It should go into > newlib-cygwin/newlib/libm/machine/arm. > >> >> Thanks >> -Eshan >> >>
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