I'm trying to build a tiny Linux system with cross-compiling GDB:

https://github.com/ponyatov/player/blob/shadow/Makefile

BINUTILS_VER = 2.41
GCC_VER      = 13.2.0

cat /etc/os-release

PRETTY_NAME="Debian GNU/Linux 10 (buster)"
NAME="Debian GNU/Linux"
VERSION_ID="10"
VERSION="10 (buster)"
VERSION_CODENAME=buster
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"

gdb --version

GNU gdb (Debian 8.2.1-2+b3) 8.2.1

I've got this error:

/home/ponyatov/player/ref/gcc-13.2.0/gcc/d/dmd/root/file.d: In function ‘read’:
/home/ponyatov/player/ref/gcc-13.2.0/gcc/d/dmd/root/file.d:81:5: error: exception handling disabled, use -fexceptions to enable

It looks like my local host gdb has too old version.
Or maybe is there some another problem in dmd frontend on the modern gcc13 distro?

gdc --version

gdc (Debian 8.3.0-6) 8.3.0

On Saturday, 21 October 2023 at 23:13:57 UTC, Dmitry Ponyatov wrote:

gdc --version

gdc (Debian 8.3.0-6) 8.3.0

You'll need at least gcc-9/gdc-9 to build gcc-13.

Version problem was fixed by building gcc-12.3.0 with gdc enabled on local host, and using it for the whole build in place of system-provided gcc toolchain.

# version
GCC_VER      = 12.3.0

# tool
GDCH = /usr/local/bin/gdc-12
CCH  = /usr/local/bin/gcc-12
CXXH = /usr/local/bin/g++-12

GCC_HOST    = GDC=$(GDCH) CC=$(CCH) CXX=$(CXXH)

CFG_GCCH = --prefix=/usr/local $(WITH_GCCLIBS) --enable-languages="c,c++,d" \
           --program-suffix="-12"                            $(OPT_HOST)    \
		   $(GCC_DISABLE) $(GCC_ENABLE)

CFG_GCC1 = $(CFG_BINUTILS1)    $(WITH_GCCLIBS) --enable-languages="c,c++,d" \
           --with-headers=$(ROOT)/usr/include                $(GCC_HOST)    \
           $(GCC_DISABLE) $(GCC_ENABLE)

Here the next problem of building gcc-12.3.0 with uClibc-ng-1.0.44 (i386 target):

libtool: compile:  /home/ponyatov/player/tmp/gcc-12.3.0-1/./gcc/gdc -B/home/ponyatov/player/tmp/gcc-12.3.0-1/./gcc/ -B/home/ponyatov/player/host/i686-linux-uclibc/bin/ -B/home/ponyatov/player/host/i686-linux-uclibc/lib/ -isystem /home/ponyatov/player/host/i686-linux-uclibc/include -isystem /home/ponyatov/player/host/i686-linux-uclibc/sys-include -Wall -frelease -ffunction-sections -fdata-sections -O2 -g -fpreview=dip1000 -fpreview=fieldwise -fpreview=dtorfields -nostdinc -I /home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime -I . -c /home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/exception.d -o core/exception.o
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1227:40: error: undefined identifier '__SIZEOF_PTHREAD_MUTEX_T'
 1227 |         byte[__SIZEOF_PTHREAD_MUTEX_T] __size;
      |                                        ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1175:39: error: undefined identifier '__SIZEOF_PTHREAD_ATTR_T'
 1175 |         byte[__SIZEOF_PTHREAD_ATTR_T] __size;
      |                                       ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1192:39: error: undefined identifier '__SIZEOF_PTHREAD_COND_T'
 1192 |         byte[__SIZEOF_PTHREAD_COND_T] __size;
      |                                       ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1198:43: error: undefined identifier '__SIZEOF_PTHREAD_CONDATTR_T'
 1198 |         byte[__SIZEOF_PTHREAD_CONDATTR_T] __size;
      |                                           ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1233:44: error: undefined identifier '__SIZEOF_PTHREAD_MUTEXATTR_T'
 1233 |         byte[__SIZEOF_PTHREAD_MUTEXATTR_T] __size;
      |                                            ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1265:41: error: undefined identifier '__SIZEOF_PTHREAD_RWLOCK_T'
 1265 |         byte[__SIZEOF_PTHREAD_RWLOCK_T] __size;
      |                                         ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1271:45: error: undefined identifier '__SIZEOF_PTHREAD_RWLOCKATTR_T'
 1271 |         byte[__SIZEOF_PTHREAD_RWLOCKATTR_T] __size;
      |                                             ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1375:42: error: undefined identifier '__SIZEOF_PTHREAD_BARRIER_T'
 1375 |         byte[__SIZEOF_PTHREAD_BARRIER_T] __size;
      |                                          ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/sys/posix/sys/types.d:1381:46: error: undefined identifier '__SIZEOF_PTHREAD_BARRIERATTR_T'
 1381 |         byte[__SIZEOF_PTHREAD_BARRIERATTR_T] __size;
      |                                              ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/internal/array/capacity.d:64:37: error: template instance 'core.internal.array.utils._d_HookTraceImpl!(char[], _d_arraysetlengthT, "Cannot resize arrays if compiling without support for runtime type information!")' error instantiating
   64 |     alias _d_arraysetlengthTTrace = _d_HookTraceImpl!(Tarr, _d_arraysetlengthT, errorMessage);
      |                                     ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/demangle.d:226:17: note: instantiated from here: '_d_arraysetlengthTImpl!(char[], char)'
  226 |                 dst.length = minBufSize;
      |                 ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/demangle.d:2111:14: note: instantiated from here: 'Demangle!(NoHooks)'
 2111 |     auto d = Demangle!()(buf, dst);
      |              ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/demangle.d:2087:16: error: template instance 'core.demangle.Demangle!(PrependHooks).Demangle.doDemangle!(parseMangledName)' error instantiating
 2087 |         return doDemangle!parseMangledName();
      |                ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/demangle.d:2172:26: note: instantiated from here: 'Demangle!(PrependHooks)'
 2172 |         alias Remangle = Demangle!(PrependHooks);
      |                          ^
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/demangle.d:2156:16: error: template instance 'object.RTInfo!(Replacement)' error instantiating
 2156 |         static struct Replacement
      |                ^
make[4]: *** [Makefile:2477: core/demangle.lo] Ошибка 1
make[4]: *** Ожидание завершения заданий…
make[4]: выход из каталога «/home/ponyatov/player/tmp/gcc-12.3.0-1/i686-linux-uclibc/libphobos/libdruntime»

fixed by moving to musl usage -- not a surprise that uClibc becomes obsoleted libc comparing their compilation time, configuration complexity, and incompatibility with modern toolchains

But the next linking error, what is going to be?

/home/ponyatov/player/host/lib/gcc/i686-linux-musl/12.3.0/../../../../i686-linux-musl/bin/ld: /home/ponyatov/player/host/lib/gcc/i686-linux-musl/12.3.0/../../../../i686-linux-musl/lib/libgphobos.a(os.o): in function `_D4core8internal2gc2os10os_mem_mapFNbNikbZPv':
/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/internal/gc/os.d:145:(.text._D4core8internal2gc2os10os_mem_mapFNbNikbZPv+0x22): undefined reference to `mmap64'
/home/ponyatov/player/host/lib/gcc/i686-linux-musl/12.3.0/../../../../i686-linux-musl/bin/ld: /home/ponyatov/player/host/lib/gcc/i686-linux-musl/12.3.0/../../../../i686-linux-musl/lib/libgphobos.a(fiber.o):/home/ponyatov/player/ref/gcc-12.3.0/libphobos/libdruntime/core/thread/fiber.d:1050: more undefined references to `mmap64' follow
collect2: error: ld returned 1 exit status

On Sunday, 22 October 2023 at 21:52:18 UTC, Dmitry Ponyatov wrote:

How/where are you referencing mmap64? Could some include be missing or path issue?

ref/gcc-12.3.0/libphobos/libdruntime/core/internal/gc/os.d:145
ref/gcc-12.3.0/libphobos/libdruntime/core/thread/fiber.d:1050
host/lib/gcc/i686-linux-musl/12.3.0/../../../../i686-linux-musl/lib/libgphobos.a(os.o)
etc

On Wednesday, 25 October 2023 at 17:11:11 UTC, Dmitry Ponyatov wrote:

Did you solve it?

No, project delayed until I'll have enough deep qualification in system-level D coding