Date: Tue, 25 Oct 2016 21:37:35 +0000 From: bugzilla-noreply@freebsd.org To: freebsd-arm@FreeBSD.org Subject: [Bug 213785] stable/11 -r307797 on BPi-M3 (cortex-a7): xgcc's cc1 during lang/gcc6 build gets SIGSYS failures (/usr/ports -r424540) Message-ID: <bug-213785-7@https.bugs.freebsd.org/bugzilla/>
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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D213785 Bug ID: 213785 Summary: stable/11 -r307797 on BPi-M3 (cortex-a7): xgcc's cc1 during lang/gcc6 build gets SIGSYS failures (/usr/ports -r424540) Product: Base System Version: 11.0-STABLE Hardware: arm OS: Any Status: New Severity: Affects Only Me Priority: --- Component: arm Assignee: freebsd-arm@FreeBSD.org Reporter: markmi@dsl-only.net [See https://lists.freebsd.org/pipermail/freebsd-stable/2016-October/086125.html= for more supporting details.] While trying to build lang/gcc6 on a BPI-M3 (Cortex-A7, ALLWINNER) I got "x= gcc: internal compiler error: Bad system call (program cc1)", which means a SIGS= YS (signal 12) resulted. [I will note that I'v never seen this issue (so far) on the rpi2: This may = be KERNCONF=3DALLWINNER specific. But I've not yet updated to -r307797 on the = rpi2. The BPI-M3 context is new for me; the rpi2 I've been using for a long time.] This was under/on: root@bananapi-m3:/usr/ports # uname -apKU FreeBSD bananapi-m3 11.0-STABLE FreeBSD 11.0-STABLE #0 r307797M: Mon Oct 24 00:41:16 PDT 2016=20=20=20=20 markmi@FreeBSDx64:/usr/local/src/crochet/work/obj/arm.armv6/usr/src/sys/ALL= WINNER arm armv6 1100505 1100505 [Note this was cross-built and then a matching svnlite co was done on the BPi-M3. So the source timestamps on the BPi-M3 are newer than the times from the cross build.] root@bananapi-m3:/usr/ports # svnlite info /usr/ports/ | grep "Re[lv]" Relative URL: ^/head Revision: 424540 Last Changed Rev: 424540 dmesg | tail shows: pid 29581 (cc1), uid 0: exited on signal 12 (core dumped) pid 29613 (cc1), uid 0: exited on signal 12 (core dumped) pid 29622 (cc1), uid 0: exited on signal 12 (core dumped) pid 29651 (cc1), uid 0: exited on signal 12 (core dumped) pid 29660 (cc1), uid 0: exited on signal 12 (core dumped) pid 29798 (cc1), uid 0: exited on signal 12 (core dumped) pid 30422 (cc1), uid 0: exited on signal 12 (core dumped) pid 30426 (cc1), uid 0: exited on signal 12 (core dumped) pid 30428 (cc1), uid 0: exited on signal 12 (core dumped) pid 30431 (cc1), uid 0: exited on signal 12 (core dumped) (All the lang/gcc6 prerequisites built okay on the BPi-M3.) Unfortunately direct execution of the cc1 command on the libgcc2.i from a u= se of -save-temps does not fail. For some reason the failure is only when xgcc causes the cc1 command execution. Also unfortunately truss gets a segmentation fault of its own trying the ha= ndle watching the SIGSYS related activity. (A truss bugzilla report has been mad= e.) Thus the following tail of the truss output for leading up to the SIGSYS do= es not cover the SIGSYS related activity itself: root@bananapi-m3:/usr/obj/portswork/usr/ports/lang/gcc6/work/.build/armv6-p= ortbld-freebsd11.0/libgcc # tail truss.log 31183 100086: close(3) =3D 0 (0x0) 31183 100086: openat(AT_FDCWD,"/usr/obj/portswork/usr/ports/lang/gcc6/work/gcc-6.2.0/libg= cc/longlong.h",O_NOCTTY,00) ERR#2 'No such file or directory' 31183 100086: openat(AT_FDCWD,"./longlong.h",O_NOCTTY,00) ERR#2 'No such fi= le or directory' 31183 100086: openat(AT_FDCWD,"../.././gcc/longlong.h",O_NOCTTY,00) ERR#2 '= No such file or directory' 31183 100086: openat(AT_FDCWD,"/usr/obj/portswork/usr/ports/lang/gcc6/work/gcc-6.2.0/libg= cc/../gcc/longlong.h",O_NOCTTY,00) ERR#2 'No such file or directory' 31183 100086: openat(AT_FDCWD,"/usr/obj/portswork/usr/ports/lang/gcc6/work/gcc-6.2.0/libg= cc/../include/longlong.h",O_NOCTTY,00) =3D 3 (0x3) 31183 100086: fstat(3,{ mode=3D-rw-r--r-- ,inode=3D573594,size=3D61185,blks= ize=3D32768 }) =3D 0 (0x0) 31183 100086: read(3,"/* longlong.h -- definitions for"...,61185) =3D 61185 (0xef01) 31183 100086: close(3) =3D 0 (0x0) 31183 100086: mmap(0x0,16384,PROT_READ|PROT_WRITE,MAP_PRIVATE|MAP_ANON,16384,0x100000000) Via using gdb on truss [with truss running xgcc and xgcc in turn running its cc1 instance]: root@bananapi-m3:/usr/obj/portswork/usr/ports/lang/gcc6/work/.build/armv6-p= ortbld-freebsd11.0/libgcc # gdb truss . . . [the below is in enter_syscall] . . . 380 t->cs.name =3D sysdecode_syscallname(t->proc->abi->abi, t->cs.number); 381 if (t->cs.name =3D=3D NULL) (gdb)=20 382 fprintf(info->outfile, "-- UNKNOWN %s SYSCALL %d --= \n", 383 t->proc->abi->type, t->cs.number); 384=20=20=20=20=20 385 sc =3D get_syscall(t->cs.name, narg); 386 t->cs.nargs =3D sc->nargs; 387 assert(sc->nargs <=3D nitems(t->cs.s_args)); 388=20=20=20=20=20 389 t->cs.sc =3D sc; (t->cs.name =3D=3D NULL after line 380). . . Looking at the two things that the fprintf on lines 382 and 383 would repor= t: (gdb) print t->proc->abi->type $4 =3D 0x10166 "FreeBSD ELF32" (gdb) print t->cs.number $5 =3D 580828064 FYI: 580828064 =3D 0x229EBBA0 (sc =3D=3D NULL results from line 385 so sc->nargs on line 386 gets a SIGSE= GV.) Just for completness: (gdb) print *t $2 =3D {entries =3D {le_next =3D 0x0, le_prev =3D 0x20617070}, proc =3D 0x2= 0617060, tid =3D 100150, in_syscall =3D 1, cs =3D {sc =3D 0x0, name =3D 0x0, number =3D 5808= 28064, args =3D 0x2061b0c0, nargs =3D 0,=20 s_args =3D 0x2061b0ec}, before =3D {tv_sec =3D 1477418265, tv_nsec =3D 49= 2342263}, after =3D {tv_sec =3D 1477418265, tv_nsec =3D 492496630}} (gdb) print sc $3 =3D (struct syscall *) 0x0 --=20 You are receiving this mail because: You are the assignee for the bug.=
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