https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68737
--- Comment #4 from dave.anglin at bell dot net --- On 2018-09-03 10:57 AM, redi at gcc dot gnu.org wrote: > Could this be due to using alloca? The tests should not require a huge stack, > so either alloca isn't usable or maybe there's a bug causing an infinite > recursion. (gdb) r Starting program: /mnt/gnu/gcc/objdir-test/hppa64-hp-hpux11.11/libstdc++-v3/testsuite/14220.exe warning: Private mapping of shared library text was not specified by the executable; setting a breakpoint in a shared library which is not privately mapped will not work. See the HP-UX 11i v3 chatr manpage for methods to privately map shared library text. Pid 2143 received a SIGSEGV for stack growth failure. Possible causes: insufficient memory or swap space, or stack size exceeded maxssiz. Program received signal SIGSEGV, Segmentation fault. 0xc000000000270de8 in memmove () from /lib/pa20_64/libc.2 (gdb) bt #0 0xc000000000270de8 in memmove () from /lib/pa20_64/libc.2 #1 0xc0000000005bba38 in std::ctype<char>::do_widen ( __to=0x800003fffdff0dd0 <crc_table+120> "1.", '0' <repeats 42 times>, __hi=0x800003fffdff0d9f <crc_table+71> "", __lo=0x800003fffdff0da0 <crc_table+72> "1.", '0' <repeats 42 times>, this=<optimized out>) at /mnt/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include/bits/locale_facets.h:1107 #2 std::ctype<char>::widen ( __to=0x800003fffdff0dd0 <crc_table+120> "1.", '0' <repeats 42 times>, __hi=0x800003fffdff0d9f <crc_table+71> "", __lo=0x800003fffdff0da0 <crc_table+72> "1.", '0' <repeats 42 times>, this=<optimized out>) at /mnt/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include/bits/locale_facets.h:908 #3 std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::_M_insert_float<double> (this=0x800003fffdfe57a0, __s=..., __io=..., __fill=43 '+', __mod=<optimized out>, __v=1) at /mnt/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include/bits/locale_facets.tcc:1048 #4 0xc0000000005bbe68 in std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::do_put (this=<optimized out>, __s=<error reading variable: Cannot access memory at address 0x10>, ---Type <return> to continue, or q <return> to quit--- __io=..., __fill=<optimized out>, __v=<optimized out>) at /mnt/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include/bits/locale_facets.tcc:1157 #5 0x4000000000003794 in std::num_put<char, std::ostreambuf_iterator<char, std::char_traits<char> > >::put (__v=1, __fill=43 '+', __io=..., __s=..., this=0x800003fffdfe57a0) at /mnt/gnu/gcc/gcc/libstdc++-v3/testsuite/22_locale/num_put/put/char/14220.cc:38 #6 test01 () at /mnt/gnu/gcc/gcc/libstdc++-v3/testsuite/22_locale/num_put/put/char/14220.cc:38 #7 0x4000000000003a74 in main () at /mnt/gnu/gcc/gcc/libstdc++-v3/testsuite/22_locale/num_put/put/char/14220.cc:45 On the failing call to memmove, we have the following arguments: (gdb) p/x $r26 $1 = 0x800003fffdff0dd0 (gdb) p/x $r25 $2 = 0x800003fffdff0da0 (gdb) p/x $r24 $3 = 0xffffffffffffffff (gdb) frame 1 #1 0x800003fffdfa0a38 in std::ctype<char>::do_widen ( __to=0x800003fffdff0dd0 <crc_table+120> "\200", __hi=0x800003fffdff0d9f <crc_table+71> "", __lo=0x800003fffdff0da0 <crc_table+72> "1.", '0' <repeats 42 times>, this=<optimized out>) at /mnt/gnu/gcc/objdir/hppa64-hp-hpux11.11/libstdc++-v3/include/bits/locale_facets.h:1107 1107 __builtin_memcpy(__to, __lo, __hi - __lo); (gdb) p __hi $4 = 0x800003fffdff0d9f <crc_table+71> "" (gdb) p __lo $5 = 0x800003fffdff0da0 <crc_table+72> "1.", '0' <repeats 42 times> (gdb) p/x __hi - __lo $6 = 0xffffffffffffffff
