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SEGV in mmap() when building lang/gcc8 with devel/binutils
Sorry for the cross-post, but the problem is so weird that I'm confused
what nature it is.
For complicated reasons (see below for details), I'm trying to build lang/gcc8
so that it uses gas/gld from devel/binutils instead of /usr/bin/{as,ld}. I put
DEPENDS+= binutils-[0-9]*:../../devel/binutils
CONFIGURE_ARGS.NetBSD+= --with-gnu-ld --with-ld=${PREFIX}/bin/gld
CONFIGURE_ARGS.NetBSD+= --with-gnu-as --with-as=${PREFIX}/bin/gas
in Makefile.
After quite some build time, some intermediate step chokes with:
checking for x86_64--netbsd-gcc... /var/work/pkgsrc/lang/gcc8/work/build/./gcc/xgcc -B/var/work/pkgsrc/lang/gcc8/work/build/./gcc/ -B/usr/pkg.compiler_boot/gcc8/x86_64--netbsd/bin/ -B/usr/pkg.compiler_boot/gcc8/x86_64--netbsd/lib/ -isystem /usr/pkg.compiler_boot/gcc8/x86_64--netbsd/include -isystem /usr/pkg.compiler_boot/gcc8/x86_64--netbsd/sys-include
checking for suffix of object files... configure: error: in `/var/work/pkgsrc/lang/gcc8/work/build/x86_64--netbsd/libgcc':
configure: error: cannot compute suffix of object files: cannot compile
See `config.log' for more details.
gmake[2]: *** [Makefile:20348: configure-stage2-target-libgcc] Error 1
gmake[2]: Leaving directory '/var/work/pkgsrc/lang/gcc8/work/build'
gmake[1]: *** [Makefile:26109: stage2-bubble] Error 2
gmake[1]: Leaving directory '/var/work/pkgsrc/lang/gcc8/work/build'
gmake: *** [Makefile:949: all] Error 2
*** Error code 2
Stop.
make[1]: stopped in /usr/pkgsrc/lang/gcc8
*** Error code 1
Stop.
make: stopped in /usr/pkgsrc/lang/gcc8
According to config.log, the failing command is
/var/work/pkgsrc/lang/gcc8/work/build/./gcc/xgcc -B/var/work/pkgsrc/lang/gcc8/work/build/./gcc/ -B/usr/pkg.compiler_boot/gcc8/x86_64--netbsd/bin/ -B/usr/pkg.compiler_boot/gcc8/x86_64--netbsd/lib/ -isystem /usr/pkg.compiler_boot/gcc8/x86_64--netbsd/include -isystem /usr/pkg.compiler_boot/gcc8/x86_64--netbsd/sys-include -c -g -O2 -D_FORTIFY_SOURCE=2 -I/usr/include -I/usr/pkg.compiler_boot/include/python3.10 conftest.c >&5
ktrace-ing that manually reveals
cc1 CALL mmap(0,0x100000,PROT_READ|PROT_WRITE,0x14001002<PRIVATE,ANONYMOUS,ALIGN=1MB>,0xffffffff,0,0)
cc1 RET mmap 137581005111296/0x7d2112f00000
cc1 PSIG SIGSEGV caught handler=0xa2e336 mask=(11): code=SEGV_MAPERR, addr=0x8, trap=6)
I even have no idea what xgcc is.
Any hints?
That's on 8.2_STABLE.
What I'm really trying to do is to build for 6.1 using a chroot and kver.
Without the patch to make gcc8 use pkgsrc binutils, it builds and seems to work
(it can build itself into the standard LOCALBASE), but it fails on
archivers/zstd because gcc emits a .S file (no inline involved) which
/usr/bin/as can't assemble (tzcntl and shrx).
Any hints on that welcome, too!
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