Re: C++ xgcc for arm-none-eabi fails in 7.1, 7.2 due to undefined identifiers

[Kai Ruottu <kai dot ruottu at wippies dot com>]

R0b0t1 kirjoitti 18.8.2017 klo 19:17:
> On Fri, Aug 18, 2017 at 1:09 AM, Freddie Chopin <freddie_chopin@op.pl> wrote:
> > On Thu, 2017-08-17 at 22:27 -0500, R0b0t1 wrote:
> > > On Thu, Aug 17, 2017 at 4:44 PM, R0b0t1 <r030t1@gmail.com> wrote:
> > > > When compiling libssp, ssp.c, function __guard_setup:
> > > > O_RDONLY is undeclared (ssp.c:93:34),
> > > > ssize_t is an unknown type name (ssp.c:96:7), and
> > > > size_t is an unknown type name (ssp.c:113:25).
> > > >
> > > > ../../src/gcc-7.2.0/configure --target=$TARGET --prefix=$PREFIX
> > > > --with-cpu=cortex-m4 --with-fpu=fpv4-sp-d16 --with-float=hard
> > > > --with-mode=thumb --enable-multilib --enable-interwork
> > > > --enable-languages=c,c++ --with-system-zlib --with-newlib
> > > > --disable-shared --disable-nls --with-gnu-as --with-gnu-ld
> > > >
> > > > A bootstrap C compiler is generated properly when passing --
> > > > without-headers.

All this talk about a "bootstrap C compiler", "magic scripts" etc. puts 
me to think there being
serious ignorance about how to simply produce a newlib-based 
crosstoolchain using the
traditional method : Putting gmp, mpc and mpfr sources for the host 
libraries and newlib &
libgloss subdirs from the newlib sources, among the GCC sources and the 
building everything
in only one stage...

I tried the traditional method and there were no problems. No weird 
"bootstrap stage", no weird
scripts required, only building binutils and then GCC with newlib after 
symlinking the extra srcs
into the main GCC source directory...

Here is the last rows from the build and then 'ls' for the $target stuff 
and trying the new GCC
driver :

make[5]: Siirrytään hakemistoon 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/thumb/libquadmath"
make  all-am
make[6]: Siirrytään hakemistoon 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/thumb/libquadmath"
true  DO=all multi-do # make
make[6]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/thumb/libquadmath"
make[5]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/thumb/libquadmath"
make[5]: Siirrytään hakemistoon 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/fpu/libquadmath"
make  all-am
make[6]: Siirrytään hakemistoon 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/fpu/libquadmath"
true  DO=all multi-do # make
make[6]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/fpu/libquadmath"
make[5]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/fpu/libquadmath"
make[4]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/libquadmath"
make[3]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/libquadmath"
make[2]: Poistutaan hakemistosta 
"/home/src-old/gcc-7.2.0/build/arm-cortex-eabi/libquadmath"
make[1]: Poistutaan hakemistosta "/home/src-old/gcc-7.2.0/build"
[root@localhost build]# ls arm-cortex-eabi
fpu  libgcc  libgloss  libquadmath  libssp  libstdc++-v3  newlib thumb
[root@localhost build]# gcc/xgcc -v
Using built-in specs.
COLLECT_GCC=gcc/xgcc
Target: arm-cortex-eabi
Configured with: ../configure --build=i686-linux-gnu 
--host=i686-linux-gnu --target=arm-cortex-eabi --prefix=/opt/cross 
--libdir=/opt/cross/lib --libexecdir=/opt/cross/lib --with-cpu=cortex-m4 
--with-fpu=fpv4-sp-d16 --with-float=hard --with-mode=thumb 
--enable-multilib --enable-interwork --enable-languages=c,c++ 
--with-newlib --disable-shared --disable-nls 
--with-gxx-include-dir=/opt/cross/include/c++/7.2.0 
--enable-version-specific-runtime-libs --program-prefix=arm-cortex-eabi- 
--program-suffix=-7.2
Thread model: single
gcc version 7.2.0 (GCC)