ncurses 20170617 causes SIGTRAP on Windows 10 / MinGW-w64

[Allen Hewes]

Hi Thomas,

Thanks for the new snapshot 20170617! It does fix the empty data
structure member but now it looks like it's trying to free some memory
that isn't allocated:

#5  0x00000000007672de in really_free_termtype (ptr=0x132698f0,
freeStrings=<optimized out>)
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/free_ttype.c:53
No locals.
#6  0x00000000007673a6 in _nc_free_termtype2 (ptr=0xbc46ff085ffd0000,
address@hidden)
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/free_ttype.c:81

Here's the full backtrace:

(gdb) run
Starting program: C:\mingw64\bin\gdbt.exe --tui
[New Thread 19256.0x3370]
[New Thread 19256.0x53c0]
[New Thread 19256.0x4578]
[New Thread 19256.0x2b68]
warning: Critical error detected c0000374

Thread 1 received signal SIGTRAP, Trace/breakpoint trap.
0x00007ff9f0b18243 in ntdll!RtlpNtMakeTemporaryKey () from
C:\WINDOWS\SYSTEM32\ntdll.dll
(gdb) bt full
#0  0x00007ff9f0b18243 in ntdll!RtlpNtMakeTemporaryKey () from
C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#1  0x00007ff9f0b18bda in ntdll!RtlpNtMakeTemporaryKey () from
C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#2  0x00007ff9f0ac5b9a in ntdll!RtlRaiseStatus () from
C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#3  0x00007ff9f0a5c8b3 in ntdll!RtlFreeHeap () from
C:\WINDOWS\SYSTEM32\ntdll.dll
No symbol table info available.
#4  0x00007ff9edfa9dac in msvcrt!free () from C:\WINDOWS\System32\msvcrt.dll
No symbol table info available.
#5  0x00000000007672de in really_free_termtype (ptr=0x132698f0,
freeStrings=<optimized out>)
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/free_ttype.c:53
No locals.
#6  0x00000000007673a6 in _nc_free_termtype2 (ptr=0xbc46ff085ffd0000,
address@hidden)
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/free_ttype.c:81
No locals.
#7  0x0000000000758691 in drv_CanHandle (TCB=0x13269840, tname=0xa116d4
<_rl_possible_control_prefixes+244> "dumb",
    errret=0x130efb6c) at
../../../../src/ncurses-6.0-20170617/ncurses/tinfo/tinfo_driver.c:182
        result = false
        status = -1
        termp = 0x13269840
        sp = 0x0
#8  0x000000000075295b in _nc_get_driver (address@hidden,
    address@hidden <_rl_possible_control_prefixes+244> "dumb",
address@hidden)
    at ../../../../src/ncurses-6.0-20170617/ncurses/base/lib_driver.c:67
        code = -1
        i = 1
        res = 0x8cffe0 <_nc_TINFO_DRIVER>
        use = 0x0
#9  0x000000000074aee1 in _nc_setupterm_ex (address@hidden,
tname=<optimized out>,
    address@hidden <_rl_possible_control_prefixes+244> "dumb",
address@hidden, address@hidden,
    address@hidden) at
../../../../src/ncurses-6.0-20170617/ncurses/tinfo/lib_setup.c:719
        my_tcb = 0x13269840
        TCB = 0x13269840
        termp = 0x13269840
        code = -1
#10 0x000000000074b2ee in tgetent_sp (sp=0x0,
    bufp=0x13268820
"\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º"...,
address@hidden <_rl_possible_control_prefixes+244> "dumb")
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/lib_termcap.c:103
        rc = -1
        n = <optimized out>
        found_cache = false
        termp = 0x0
#11 0x000000000074bd8b in tgetent (bufp=<optimized out>,
address@hidden <_rl_possible_control_prefixes+244> "dumb")
    at ../../../../src/ncurses-6.0-20170617/ncurses/tinfo/lib_termcap.c:207
No locals.
#12 0x00000000006660e0 in _rl_init_terminal_io
(address@hidden) at
../../../src/readline-7.0/terminal.c:488
        term = 0xa116d4 <_rl_possible_control_prefixes+244> "dumb"
        buffer = 0x13268000
"\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º\rd-º"...
        tty = 0
        tgetent_ret = <optimized out>
#13 0x000000000066649d in rl_reset_terminal
(address@hidden) at
../../../src/readline-7.0/terminal.c:631
No locals.
#14 0x0000000000612574 in init_page_info () at
../../../../src/gdb-7.12.1/gdb/utils.c:1717
        rows = 0
        cols = 0
#15 0x0000000000611644 in gdb_init (argv0=<optimized out>) at
../../../../src/gdb-7.12.1/gdb/top.c:2197
No locals.
#16 0x0000000000546bea in captured_main (address@hidden) at
../../../../src/gdb-7.12.1/gdb/main.c:865
        context = 0x130efe20
        argc = 2
        argv = 0x13264730
        quiet = 0
        set_args = 0
        inhibit_home_gdbinit = 0
        symarg = 0x0
        execarg = 0x0
        pidarg = 0x0
        corearg = 0x0
        pid_or_core_arg = 0x0
        cdarg = 0x0
        ttyarg = 0x0
---Type <return> to continue, or q <return> to quit---
        print_help = 0
        print_version = 0
        print_configuration = 0
        cmdarg_vec = 0x0
        cmdarg_p = <optimized out>
        dirarg = 0x13264ee0
        dirsize = 1
        ndir = 0
        system_gdbinit = 0x13263e50 "ÿ\a"
        home_gdbinit = 0x4e211f <save_cleanups()+16> "HƒÄ(AHƒì(H\215\r!å="
        local_gdbinit = 0x13263e50 "ÿ\a"
        i = <optimized out>
        save_auto_load = 321275696
        objfile = <optimized out>
        pre_stat_chain = 0x988660 <sentinel_cleanup>
#17 0x00000000005473b7 in gdb_main (address@hidden) at
../../../../src/gdb-7.12.1/gdb/main.c:1159
No locals.
#18 0x00000000004015e8 in main (argc=2, argv=0x13264730) at
../../../../src/gdb-7.12.1/gdb/gdb.c:32
        args = {argc = 2, argv = 0x13264730, interpreter_p = 0x933030
"console"}