If I build https://github.com/jpf91/gcc/commits/target-libs without phobos/druntime, can I generate object with -betterC for android(arm,aarch64) or ios(armv7,arm64) target binary ?

On Mon, 22 Apr 2019 at 17:20, JianDong via D.gnu <d.gnu@puremagic.com> wrote:
>
> If I build https://github.com/jpf91/gcc/commits/target-libs
> without phobos/druntime, can I generate object with -betterC for
> android(arm,aarch64) or ios(armv7,arm64) target binary ?
>

It would make things easier if the -fno-exceptions/-fno-rtti/-fno-druntime patches were applied.

This should make it into gcc-9 before the release.

-- 
Iain

On Monday, 22 April 2019 at 21:18:29 UTC, Iain Buclaw wrote:
> On Mon, 22 Apr 2019 at 17:20, JianDong via D.gnu <d.gnu@puremagic.com> wrote:
>
> It would make things easier if the -fno-exceptions/-fno-rtti/-fno-druntime patches were applied.
>
> This should make it into gcc-9 before the release.


Can you explain where is this patches and how do i apply it ?

Thanks in advance.

On Tue, 23 Apr 2019 at 07:25, JianDong via D.gnu <d.gnu@puremagic.com> wrote:
>
> On Monday, 22 April 2019 at 21:18:29 UTC, Iain Buclaw wrote:
> > On Mon, 22 Apr 2019 at 17:20, JianDong via D.gnu <d.gnu@puremagic.com> wrote:
> >
> > It would make things easier if the -fno-exceptions/-fno-rtti/-fno-druntime patches were applied.
> >
> > This should make it into gcc-9 before the release.
>
>
> Can you explain where is this patches and how do i apply it ?
>
> Thanks in advance.

It's been applied to gcc-trunk, it'll be in the RC snapshot, which should be available some time this week.

-- 
Iain

On Tuesday, 23 April 2019 at 23:45:05 UTC, Iain Buclaw wrote:
>
> It's been applied to gcc-trunk, it'll be in the RC snapshot, which should be available some time this week.

Great work,  I can install it from Debian experimental, but when I build by myself get this error:

/opt/build/gcc-9.0.1-RC-20190426/host-x86_64-pc-linux-gnu/gcc/xgcc -B/opt/build/gcc-9.0.1-RC-20190426/host-x86_64-pc-linux-gnu/gcc/ -B/opt/gdc/x86_64-pc-linux-gnu/bin/ -B/opt/gdc/x86_64-pc-linux-gnu/lib/ -isystem /opt/gdc/x86_64-pc-linux-gnu/include -isystem /opt/gdc/x86_64-pc-linux-gnu/sys-include    -O2  -g -O2 -m64 -DIN_GCC    -W -Wall -Wno-narrowing -Wwrite-strings -Wcast-qual -Wstrict-prototypes -Wmissing-prototypes -Wold-style-definition  -isystem ./include   -fpic -mlong-double-80 -DUSE_ELF_SYMVER  -g -DIN_LIBGCC2 -fbuilding-libgcc -fno-stack-protector  -shared -nodefaultlibs -Wl,--soname=libgcc_s.so.1 -Wl,--version-script=libgcc.map -o 32/libgcc_s.so.1.tmp -g -O2 -m64 -m32 -B./ _muldi3_s.o _negdi2_s.o _lshrdi3_s.o _ashldi3_s.o _ashrdi3_s.o _cmpdi2_s.o _ucmpdi2_s.o _clear_cache_s.o _trampoline_s.o __main_s.o _absvsi2_s.o _absvdi2_s.o _addvsi3_s.o _addvdi3_s.o _subvsi3_s.o _subvdi3_s.o _mulvsi3_s.o _mulvdi3_s.o _negvsi2_s.o _negvdi2_s.o _ctors_s.o _ffssi2_s.o _ffsdi2_s.o _clz_s.o _clzsi2_s.o _clzdi2_s.o _ctzsi2_s.o _ctzdi2_s.o _popcount_tab_s.o _popcountsi2_s.o _popcountdi2_s.o _paritysi2_s.o _paritydi2_s.o _powisf2_s.o _powidf2_s.o _powixf2_s.o _powitf2_s.o _mulhc3_s.o _mulsc3_s.o _muldc3_s.o _mulxc3_s.o _multc3_s.o _divhc3_s.o _divsc3_s.o _divdc3_s.o _divxc3_s.o _divtc3_s.o _bswapsi2_s.o _bswapdi2_s.o _clrsbsi2_s.o _clrsbdi2_s.o _fixunssfsi_s.o _fixunsdfsi_s.o _fixunsxfsi_s.o _fixsfdi_s.o _fixdfdi_s.o _fixxfdi_s.o _fixunssfdi_s.o _fixunsdfdi_s.o _fixunsxfdi_s.o _floatdisf_s.o _floatdidf_s.o _floatdixf_s.o _floatundisf_s.o _floatundidf_s.o _floatundixf_s.o _divdi3_s.o _moddi3_s.o _divmoddi4_s.o _udivdi3_s.o _umoddi3_s.o _udivmoddi4_s.o _udiv_w_sdiv_s.o cpuinfo_s.o tf-signs_s.o sfp-exceptions_s.o addtf3_s.o divtf3_s.o eqtf2_s.o getf2_s.o letf2_s.o multf3_s.o negtf2_s.o subtf3_s.o unordtf2_s.o fixtfsi_s.o fixunstfsi_s.o floatsitf_s.o floatunsitf_s.o fixtfdi_s.o fixunstfdi_s.o floatditf_s.o floatunditf_s.o extendsftf2_s.o extenddftf2_s.o extendxftf2_s.o trunctfsf2_s.o trunctfdf2_s.o trunctfxf2_s.o enable-execute-stack_s.o unwind-dw2_s.o unwind-dw2-fde-dip_s.o unwind-sjlj_s.o unwind-c_s.o emutls_s.o libgcc.a -lc && rm -f 32/libgcc_s.so && if [ -f 32/libgcc_s.so.1 ]; then mv -f 32/libgcc_s.so.1 32/libgcc_s.so.1.backup; else true; fi && mv 32/libgcc_s.so.1.tmp 32/libgcc_s.so.1 && (echo "/* GNU ld script"; echo "   Use the shared library, but some functions are only in"; echo "   the static library.  */"; echo "GROUP ( libgcc_s.so.1 -lgcc )" ) > 32/libgcc_s.so
/usr/bin/ld: cannot find crti.o: No such file or directory
/usr/bin/ld: skipping incompatible //usr/lib/x86_64-linux-gnu/libc.so when searching for -lc
/usr/bin/ld: skipping incompatible //usr/lib/x86_64-linux-gnu/libc.a when searching for -lc
/usr/bin/ld: cannot find -lc
/usr/bin/ld: cannot find crtn.o: No such file or directory
collect2: error: ld returned 1 exit status
make[4]: *** [Makefile:992: libgcc_s.so] Error 1
make[4]: Leaving directory '/opt/build/gcc-9.0.1-RC-20190426/x86_64-pc-linux-gnu/32/libgcc'
make[3]: *** [Makefile:1210: multi-do] Error 1
make[3]: Leaving directory '/opt/build/gcc-9.0.1-RC-20190426/x86_64-pc-linux-gnu/libgcc'

my configure is:  ./configure --prefix=/opt/gdc --enable-languages=c,c++,d --disable-libphobos --enable-lto --enable-checking=yes --enable-gold --enable-stage1-languages=c,c++

do you know do to bypass the error `/usr/bin/ld: skipping incompatible //usr/lib/x86_64-linux-gnu/libc.so when searching for -lc` ? I try add -L/lib/gcc/x86_64-linux-gnu/9/ to LDFLAGS but not work.

On Tuesday, 23 April 2019 at 23:45:05 UTC, Iain Buclaw wrote:
> It's been applied to gcc-trunk, it'll be in the RC snapshot, which should be available some time this week.

After add --disable-multilib I can build the GDC without problem.

Am Tue, 30 Apr 2019 06:16:00 +0000 schrieb ChangLoong:

> On Tuesday, 23 April 2019 at 23:45:05 UTC, Iain Buclaw wrote:
>>
>> It's been applied to gcc-trunk, it'll be in the RC snapshot, which should be available some time this week.
> 
> Great work,  I can install it from Debian experimental, but when I build
> by myself get this error:
> my configure is:  ./configure --prefix=/opt/gdc
> --enable-languages=c,c++,d --disable-libphobos --enable-lto
> --enable-checking=yes --enable-gold --enable-stage1-languages=c,c++
> 
> do you know do to bypass the error `/usr/bin/ld: skipping incompatible //usr/lib/x86_64-linux-gnu/libc.so when searching for -lc` ? I try add -L/lib/gcc/x86_64-linux-gnu/9/ to LDFLAGS but not work.

You probably need to install libc6-dev-i386 to build a multilib compiler from source.

-- 
Johannes