[Bug libgcc/109121] New: m68k/coldfire: multilib: arithmetic functions missing

[Bug libgcc/109121] New: m68k/coldfire: multilib: arithmetic functions missing

[angelo70 at gmail dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109121

            Bug ID: 109121
           Summary: m68k/coldfire: multilib: arithmetic functions missing
           Product: gcc
           Version: 12.2.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: libgcc
          Assignee: unassigned at gcc dot gnu.org
          Reporter: angelo70 at gmail dot com
  Target Milestone: ---

Hi all,

i am using the following toolchain, from kernel.org, to build
the whole range of coldfire-based boards in u-boot.

/opt/toolchains/m68k/gcc-12.2.0-nolibc/m68k-linux/bin/m68k-linux-gcc -v         
Using built-in specs.
COLLECT_GCC=/opt/toolchains/m68k/gcc-12.2.0-nolibc/m68k-linux/bin/m68k-linux-gcc
COLLECT_LTO_WRAPPER=/opt/toolchains/m68k/gcc-12.2.0-nolibc/m68k-linux/bin/../libexec/gcc/m68k-linux/12.2.0/lto-wrapper
Target: m68k-linux
Configured with: /home/arnd/git/gcc/configure --target=m68k-linux
--enable-targets=all
--prefix=/home/arnd/cross/x86_64/gcc-12.2.0-nolibc/m68k-linux
--enable-languages=c --without-headers --disable-bootstrap --disable-nls
--disable-threads --disable-shared --disable-libmudflap --disable-libssp
--disable-libgomp --disable-decimal-float --disable-libquadmath
--disable-libatomic --disable-libcc1 --disable-libmpx --enable-checking=release
Thread model: single
Supported LTO compression algorithms: zlib
gcc version 12.2.0 (GCC)

      m68k:  +   M5253DEMO
+m68k-linux-ld.bfd: board/freescale/m5253demo/flash.o: in function
`flash_print_info':
+board/freescale/m5253demo/flash.c:107: undefined reference to `__fixsfsi'
+m68k-linux-ld.bfd: arch/m68k/lib/mulsf3.o: in function `__mulsf3':
+arch/m68k/lib/mulsf3.c:5: undefined reference to `__extendsfdf2'
+m68k-linux-ld.bfd: arch/m68k/lib/mulsf3.c:5: undefined reference to
`__mulXf3__'
+make[1]: *** [Makefile:1754: u-boot] Error 1
+make: *** [Makefile:177: sub-make] Error 2


      m68k:  +   M5249EVB
+m68k-linux-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/ashldi3.o' is incompatible with m68k:isa-a:emac output
+m68k-linux-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/lshrdi3.o' is incompatible with m68k:isa-a:emac output
+m68k-linux-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/muldi3.o' is incompatible with m68k:isa-a:emac output
+make[1]: *** [Makefile:1754: u-boot] Error 1
+make: *** [Makefile:177: sub-make] Error 2
      m68k:  +   amcore
+m68k-linux-ld.bfd: m68k:isa-aplus:emac architecture of input file
`arch/m68k/lib/ashldi3.o' is incompatible with m68k:isa-a:mac output
+m68k-linux-ld.bfd: m68k:isa-aplus:emac architecture of input file
`arch/m68k/lib/lshrdi3.o' is incompatible with m68k:isa-a:mac output
+m68k-linux-ld.bfd: m68k:isa-aplus:emac architecture of input file
`arch/m68k/lib/muldi3.o' is incompatible with m68k:isa-a:mac output
+make[1]: *** [Makefile:1754: u-boot] Error 1
+make: *** [Makefile:177: sub-make] Error 2


Also tested same version built here, enabling multilib:

/opt/toolchains/m68k/m68k-kernelspace-elf/bin/m68k-kernelspace-elf-gcc -v       
Using built-in specs.
COLLECT_GCC=/opt/toolchains/m68k/m68k-kernelspace-elf/bin/m68k-kernelspace-elf-gcc
COLLECT_LTO_WRAPPER=/opt/toolchains/m68k/m68k-kernelspace-elf/bin/../libexec/gcc/m68k-kernelspace-elf/12.2.0/lto-wrapper
Target: m68k-kernelspace-elf
Configured with:
/home/angelo/dev-kernelspace/crosstool-ng/.build/m68k-kernelspace-elf/src/gcc/configure
--build=x86_64-build_pc-linux-gnu --host=x86_64-build_pc-linux-gnu
--target=m68k-kernelspace-elf
--prefix=/home/angelo/dev-kernelspace/crosstool-ng/x-tools/m68k-kernelspace-elf
--exec_prefix=/home/angelo/dev-kernelspace/crosstool-ng/x-tools/m68k-kernelspace-elf
--with-local-prefix=/home/angelo/dev-kernelspace/crosstool-ng/x-tools/m68k-kernelspace-elf/m68k-kernelspace-elf
--with-headers=/home/angelo/dev-kernelspace/crosstool-ng/x-tools/m68k-kernelspace-elf/m68k-kernelspace-elf/include
--with-newlib --enable-threads=no --disable-shared
--with-pkgversion='crosstool-NG 1.25.0.131_ee5a402_dirty' --enable-__cxa_atexit
--disable-libgomp --disable-libmudflap --disable-libmpx --disable-libssp
--disable-libquadmath --disable-libquadmath-support --disable-libstdcxx-verbose
--with-gmp=/home/angelo/dev-kernelspace/crosstool-ng/.build/m68k-kernelspace-elf/buildtools
--with-mpfr=/home/angelo/dev-kernelspace/crosstool-ng/.build/m68k-kernelspace-elf/buildtools
--with-mpc=/home/angelo/dev-kernelspace/crosstool-ng/.build/m68k-kernelspace-elf/buildtools
--with-isl=/home/angelo/dev-kernelspace/crosstool-ng/.build/m68k-kernelspace-elf/buildtools
--disable-lto --enable-default-pie --enable-target-optspace --disable-nls
--enable-multiarch --with-multilib-list=5253,5329,5373 --enable-languages=c
--disable-shared
Thread model: single
Supported LTO compression algorithms: zlib zstd
gcc version 12.2.0 (crosstool-NG 1.25.0.131_ee5a402_dirty)


Still getting some

mcf54415
+m68k-kernelspace-elf-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/ashldi3.o' is incompatible with m68k:isa-c:emac output
+m68k-kernelspace-elf-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/lshrdi3.o' is incompatible with m68k:isa-c:emac output
+m68k-kernelspace-elf-ld.bfd: m68k:isa-a:mac architecture of input file
`arch/m68k/lib/muldi3.o' is incompatible with m68k:isa-c:emac output
+make[1]: *** [Makefile:1754: u-boot] Error 1

and

M5253DEMO
+m68k-kernelspace-elf-ld.bfd: board/freescale/m5253demo/flash.o: in function
`flash_print_info':
+board/freescale/m5253demo/flash.c:107: undefined reference to `__fixsfsi'
+m68k-kernelspace-elf-ld.bfd: arch/m68k/lib/mulsf3.o: in function `__mulsf3':
+arch/m68k/lib/mulsf3.c:5: undefined reference to `__extendsfdf2'
+m68k-kernelspace-elf-ld.bfd: arch/m68k/lib/mulsf3.c:5: undefined reference to
`__mulXf3__'
+make[1]: *** [Makefile:1754: u-boot] Error 1
+make: *** [Makefile:177: sub-make] Error 2


I think in the past, in older gcc versions, likely 5.2, the build was not
failing, so seems such arithmetic functions has been removed.

Please let me know if i can help on this, or if there is any workaround.



Regards,
angelo

[Bug libgcc/109121] m68k/coldfire: multilib: arithmetic functions missing

[schwab@linux-m68k.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109121

--- Comment #1 from Andreas Schwab <schwab@linux-m68k.org> ---
That looks more a bug in the software you are building.  It appears to be using
a custom link command that fails to link against libgcc.  The errors about the
incompatible architecture are due to invalid mixture of object files built with
different -march or -mcpu options.

[Bug libgcc/109121] m68k/coldfire: multilib: arithmetic functions missing

[angelo@kernel-space.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109121

--- Comment #2 from Angelo Dureghello <angelo@kernel-space.org> ---
Hi Andreas, 

thanks a lot.

Will recheck all the flags.-

[Bug target/109121] m68k/coldfire: multilib: arithmetic functions missing

[pinskia at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=109121

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
This seems like a bug in uboot ...