> Date: Mon, 20 May 2013 06:37:31 -0700
> From: Ian Lance Taylor <i...@google.com>
> Cc: gcc@gcc.gnu.org
>
> On Sun, May 19, 2013 at 8:43 PM, Eli Zaretskii <e...@gnu.org> wrote:
> >> I don't see any obvious bug in the code. Evidently
> >> something is going wrong, but the e-mail messages you linked to don't
> >> provide enough information to know what it is. In particular they
> >> don't show where in __deregister_frame_info_bases the crash is
> >> occurring.
> >
> > I believe that's because the versions of the library which I could
> > find don't have enough debug information. Does someone know where can
> > I find a library with debug info? Failing that, would a disassembly
> > near the address where it crashes be useful?
>
> Normally the library should have debug info. I don't know why it
> doesn't in your case.
I don't know either. Perhaps the person who prepared the MinGW GCC
package stripped the binaries and the DLLs. GDB clearly says (in
"info shared") that the DLL has no debug info.
> Yes, a disassembly around the address might possibly help, although
> not if you are correct about where the problem is happening.
I show the disassembly below. And since the address from which
'abort' was called didn't make much sense (it pointed to the
instruction _after_ the one that jumped to 'abort'), I also show a
session of stepping through __deregister_frame_info_bases, with
display of the instructions that are being stepped through. I hope
this gives sufficient info to see what is going on.
My interpretation of what I saw is that the call to 'abort' is indeed
from gcc_assert, because it happens immediately after the return from
__gthread_mutex_unlock, as seen by stepping through the call to
InterlockedDecrement.
> > Anyway, what we see is not a crash, but a call to 'abort' from Windows
> > runtime. The immediate suspect for that is the line near the end of
> > __deregister_frame_info_bases where there's a call to gcc_assert.
> > Does that make sense?
>
> I don't see why that assert would trigger, no.
I have a theory about this, based on the following observation: if I
link Emacs with -shared-libgcc, the crashes disappear.
Looking closer and cygming-crtbegin.c and cygming-crtend.c, I see that
they both test for the shared libgcc being loaded into the process,
but they do that independently. So, if the shared libgcc is loaded
some time after the program start, as a side effect of loading another
DLL (it was libintl in the case in point, which was loaded because
Emacs loaded the GnuTLS library to start a TLS session), crtbegin will
decide that libgcc DLL is not present, while crtend will decide that
it is. Doesn't this asymmetry cause the program to use incompatible
register and deregister code? And wouldn't that in turn cause the
assert to trigger?
If my theory makes sense, does this mean that loading _any_ DLL that
depends on libgcc as a shared library _requires_ the program to be
linked with -shared-libgcc? If this is indeed so, and by design
rather than by accident, then it would be an unfortunate restriction,
since a program can be built on one machine and then the binary
installed and used on another, with different builds of the same
DLLs. Like in this case.
Anyway, here's the disassembly and the stepping session:
(gdb) info symbol 0x700f6f64
libgcc_s_dw2-1!__deregister_frame_info in section .text of
D:\usr\bin\libgcc_s_dw2-1.dll
(gdb) break *0x700f6f64
Breakpoint 4 at 0x700f6f64
(gdb) c
Continuing.
[New Thread 48596.0xb844]
[New Thread 48596.0xbc74]
[New Thread 48596.0xbc44]
[Thread 48596.0xbe68 exited with code 0]
Breakpoint 4, 0x700f6f64 in libgcc_s_dw2-1!__deregister_frame_info ()
from D:\usr\bin\libgcc_s_dw2-1.dll
(gdb) display/i $pc
1: x/i $pc
=> 0x700f6f64 <libgcc_s_dw2-1!__deregister_frame_info>:
jmp 0x700f6da8 <libgcc_s_dw2-1!__deregister_frame_info_bases>
(gdb) ni
0x700f6da8 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6da8 <libgcc_s_dw2-1!__deregister_frame_info_bases>: push %esi
(gdb)
0x700f6da9 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6da9 <libgcc_s_dw2-1!__deregister_frame_info_bases+1>: push %ebx
(gdb) ni
0x700f6daa in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6daa <libgcc_s_dw2-1!__deregister_frame_info_bases+2>:
sub $0x14,%esp
(gdb)
0x700f6dad in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dad <libgcc_s_dw2-1!__deregister_frame_info_bases+5>:
mov 0x20(%esp),%esi
(gdb)
0x700f6db1 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6db1 <libgcc_s_dw2-1!__deregister_frame_info_bases+9>:
test %esi,%esi
(gdb) disassemble
Dump of assembler code for function
libgcc_s_dw2-1!__deregister_frame_info_bases:
0x700f6da8 <+0>: push %esi
0x700f6da9 <+1>: push %ebx
0x700f6daa <+2>: sub $0x14,%esp
0x700f6dad <+5>: mov 0x20(%esp),%esi
=> 0x700f6db1 <+9>: test %esi,%esi
0x700f6db3 <+11>: je 0x700f6ee8
<libgcc_s_dw2-1!__deregister_frame_info_bases+320>
0x700f6db9 <+17>: mov (%esi),%eax
0x700f6dbb <+19>: test %eax,%eax
0x700f6dbd <+21>: je 0x700f6ee8
<libgcc_s_dw2-1!__deregister_frame_info_bases+320>
0x700f6dc3 <+27>: mov 0x700f901c,%eax
0x700f6dc8 <+32>: test %eax,%eax
0x700f6dca <+34>: je 0x700f6def
<libgcc_s_dw2-1!__deregister_frame_info_bases+71>
0x700f6dcc <+36>: mov 0x700f900c,%ebx
0x700f6dd2 <+42>: test %ebx,%ebx
0x700f6dd4 <+44>: je 0x700f6e68
<libgcc_s_dw2-1!__deregister_frame_info_bases+192>
0x700f6dda <+50>: movl $0x700fe038,(%esp)
0x700f6de1 <+57>: call 0x700f8140
<libgcc_s_dw2-1!__emutls_register_common+1872>
0x700f6de6 <+62>: push %ecx
0x700f6de7 <+63>: test %eax,%eax
0x700f6de9 <+65>: jne 0x700f6ef4
<libgcc_s_dw2-1!__deregister_frame_info_bases+332>
0x700f6def <+71>: mov 0x700fe040,%eax
0x700f6df4 <+76>: test %eax,%eax
0x700f6df6 <+78>: je 0x700f6e16
<libgcc_s_dw2-1!__deregister_frame_info_bases+110>
0x700f6df8 <+80>: cmp %esi,0xc(%eax)
0x700f6dfb <+83>: jne 0x700f6e0f
<libgcc_s_dw2-1!__deregister_frame_info_bases+103>
0x700f6dfd <+85>: jmp 0x700f6f51
<libgcc_s_dw2-1!__deregister_frame_info_bases+425>
0x700f6e02 <+90>: xchg %ax,%ax
0x700f6e04 <+92>: cmp %esi,0xc(%ebx)
0x700f6e07 <+95>: je 0x700f6ea8
<libgcc_s_dw2-1!__deregister_frame_info_bases+256>
0x700f6e0d <+101>: mov %ebx,%eax
0x700f6e0f <+103>: mov 0x14(%eax),%ebx
0x700f6e12 <+106>: test %ebx,%ebx
0x700f6e14 <+108>: jne 0x700f6e04
<libgcc_s_dw2-1!__deregister_frame_info_bases+92>
0x700f6e16 <+110>: mov 0x700fe044,%ebx
0x700f6e1c <+116>: test %ebx,%ebx
0x700f6e1e <+118>: je 0x700f6e4d
<libgcc_s_dw2-1!__deregister_frame_info_bases+165>
0x700f6e20 <+120>: mov $0x700fe044,%eax
0x700f6e25 <+125>: jmp 0x700f6e3d
<libgcc_s_dw2-1!__deregister_frame_info_bases+149>
0x700f6e27 <+127>: nop
0x700f6e28 <+128>: mov 0xc(%ebx),%edx
0x700f6e2b <+131>: cmp %esi,(%edx)
0x700f6e2d <+133>: je 0x700f6f28
<libgcc_s_dw2-1!__deregister_frame_info_bases+384>
0x700f6e33 <+139>: lea 0x14(%ebx),%eax
0x700f6e36 <+142>: mov 0x14(%ebx),%ebx
0x700f6e39 <+145>: test %ebx,%ebx
0x700f6e3b <+147>: je 0x700f6e4d
<libgcc_s_dw2-1!__deregister_frame_info_bases+165>
0x700f6e3d <+149>: testb $0x1,0x10(%ebx)
0x700f6e41 <+153>: jne 0x700f6e28
<libgcc_s_dw2-1!__deregister_frame_info_bases+128>
0x700f6e43 <+155>: cmp %esi,0xc(%ebx)
0x700f6e46 <+158>: jne 0x700f6e33
<libgcc_s_dw2-1!__deregister_frame_info_bases+139>
0x700f6e48 <+160>: mov 0x14(%ebx),%edx
0x700f6e4b <+163>: mov %edx,(%eax)
0x700f6e4d <+165>: mov 0x700f901c,%ecx
0x700f6e53 <+171>: test %ecx,%ecx
0x700f6e55 <+173>: jne 0x700f6eb0
<libgcc_s_dw2-1!__deregister_frame_info_bases+264>
0x700f6e57 <+175>: test %ebx,%ebx
0x700f6e59 <+177>: je 0x700f6f5d
<libgcc_s_dw2-1!__deregister_frame_info_bases+437>
0x700f6e5f <+183>: mov %ebx,%eax
0x700f6e61 <+185>: add $0x14,%esp
0x700f6e64 <+188>: pop %ebx
0x700f6e65 <+189>: pop %esi
0x700f6e66 <+190>: ret
0x700f6e67 <+191>: nop
0x700f6e68 <+192>: movl $0x700f9010,(%esp)
0x700f6e6f <+199>: call 0x700f8140
<libgcc_s_dw2-1!__emutls_register_common+1872>
0x700f6e74 <+204>: push %edx
0x700f6e75 <+205>: test %eax,%eax
0x700f6e77 <+207>: jne 0x700f6e8d
<libgcc_s_dw2-1!__deregister_frame_info_bases+229>
0x700f6e79 <+209>: jmp 0x700f6f3d
<libgcc_s_dw2-1!__deregister_frame_info_bases+405>
0x700f6e7e <+214>: xchg %ax,%ax
0x700f6e80 <+216>: movl $0x0,(%esp)
0x700f6e87 <+223>: call 0x700f8148
<libgcc_s_dw2-1!__emutls_register_common+1880>
0x700f6e8c <+228>: push %eax
0x700f6e8d <+229>: mov 0x700f900c,%eax
0x700f6e92 <+234>: test %eax,%eax
0x700f6e94 <+236>: je 0x700f6e80
<libgcc_s_dw2-1!__deregister_frame_info_bases+216>
0x700f6e96 <+238>: mov 0x700f901c,%eax
0x700f6e9b <+243>: test %eax,%eax
0x700f6e9d <+245>: je 0x700f6def
<libgcc_s_dw2-1!__deregister_frame_info_bases+71>
0x700f6ea3 <+251>: jmp 0x700f6dda
<libgcc_s_dw2-1!__deregister_frame_info_bases+50>
0x700f6ea8 <+256>: add $0x14,%eax
0x700f6eab <+259>: jmp 0x700f6e48
<libgcc_s_dw2-1!__deregister_frame_info_bases+160>
0x700f6ead <+261>: lea 0x0(%esi),%esi
0x700f6eb0 <+264>: movl $0x700fe038,(%esp)
0x700f6eb7 <+271>: call 0x700f8198
<libgcc_s_dw2-1!__emutls_register_common+1960>
0x700f6ebc <+276>: push %edx
0x700f6ebd <+277>: test %eax,%eax
0x700f6ebf <+279>: js 0x700f6e57
<libgcc_s_dw2-1!__deregister_frame_info_bases+175>
0x700f6ec1 <+281>: movl $0x0,0x8(%esp)
0x700f6ec9 <+289>: movl $0x1,0x4(%esp)
0x700f6ed1 <+297>: mov 0x700fe03c,%eax
0x700f6ed6 <+302>: mov %eax,(%esp)
0x700f6ed9 <+305>: call 0x700f81a0
<libgcc_s_dw2-1!__emutls_register_common+1968>
0x700f6ede <+310>: sub $0xc,%esp
0x700f6ee1 <+313>: jmp 0x700f6e57
<libgcc_s_dw2-1!__deregister_frame_info_bases+175>
0x700f6ee6 <+318>: xchg %ax,%ax
0x700f6ee8 <+320>: xor %ebx,%ebx
0x700f6eea <+322>: mov %ebx,%eax
0x700f6eec <+324>: add $0x14,%esp
0x700f6eef <+327>: pop %ebx
0x700f6ef0 <+328>: pop %esi
0x700f6ef1 <+329>: ret
0x700f6ef2 <+330>: xchg %ax,%ax
0x700f6ef4 <+332>: movl $0xffffffff,0x4(%esp)
0x700f6efc <+340>: mov 0x700fe03c,%eax
0x700f6f01 <+345>: mov %eax,(%esp)
0x700f6f04 <+348>: call 0x700f8190
<libgcc_s_dw2-1!__emutls_register_common+1952>
0x700f6f09 <+353>: sub $0x8,%esp
0x700f6f0c <+356>: test %eax,%eax
0x700f6f0e <+358>: je 0x700f6def
<libgcc_s_dw2-1!__deregister_frame_info_bases+71>
0x700f6f14 <+364>: movl $0x700fe038,(%esp)
0x700f6f1b <+371>: call 0x700f8198
<libgcc_s_dw2-1!__emutls_register_common+1960>
0x700f6f20 <+376>: push %ebx
0x700f6f21 <+377>: jmp 0x700f6def
<libgcc_s_dw2-1!__deregister_frame_info_bases+71>
0x700f6f26 <+382>: xchg %ax,%ax
0x700f6f28 <+384>: mov 0x14(%ebx),%edx
0x700f6f2b <+387>: mov %edx,(%eax)
0x700f6f2d <+389>: mov 0xc(%ebx),%eax
0x700f6f30 <+392>: mov %eax,(%esp)
0x700f6f33 <+395>: call 0x700f80d0
<libgcc_s_dw2-1!__emutls_register_common+1760>
0x700f6f38 <+400>: jmp 0x700f6e4d
<libgcc_s_dw2-1!__deregister_frame_info_bases+165>
0x700f6f3d <+405>: call 0x700f57c0 <libgcc_s_dw2-1!_Unwind_Backtrace+972>
0x700f6f42 <+410>: movl $0x1,0x700f900c
0x700f6f4c <+420>: jmp 0x700f6e96
<libgcc_s_dw2-1!__deregister_frame_info_bases+238>
0x700f6f51 <+425>: mov %eax,%ebx
0x700f6f53 <+427>: mov $0x700fe040,%eax
0x700f6f58 <+432>: jmp 0x700f6e48
<libgcc_s_dw2-1!__deregister_frame_info_bases+160>
0x700f6f5d <+437>: call 0x700f80f8
<libgcc_s_dw2-1!__emutls_register_common+1800>
0x700f6f62 <+442>: xchg %ax,%ax
End of assembler dump.
(gdb) ni
0x700f6db3 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6db3 <libgcc_s_dw2-1!__deregister_frame_info_bases+11>:
je 0x700f6ee8 <libgcc_s_dw2-1!__deregister_frame_info_bases+320>
(gdb)
[Thread 48596.0xbc44 exited with code 0]
[Thread 48596.0xb844 exited with code 0]
0x700f6db9 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6db9 <libgcc_s_dw2-1!__deregister_frame_info_bases+17>:
mov (%esi),%eax
(gdb)
0x700f6dbb in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dbb <libgcc_s_dw2-1!__deregister_frame_info_bases+19>:
test %eax,%eax
(gdb)
0x700f6dbd in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dbd <libgcc_s_dw2-1!__deregister_frame_info_bases+21>:
je 0x700f6ee8 <libgcc_s_dw2-1!__deregister_frame_info_bases+320>
(gdb)
0x700f6dc3 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dc3 <libgcc_s_dw2-1!__deregister_frame_info_bases+27>:
mov 0x700f901c,%eax
(gdb)
0x700f6dc8 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dc8 <libgcc_s_dw2-1!__deregister_frame_info_bases+32>:
test %eax,%eax
(gdb)
0x700f6dca in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dca <libgcc_s_dw2-1!__deregister_frame_info_bases+34>:
je 0x700f6def <libgcc_s_dw2-1!__deregister_frame_info_bases+71>
(gdb)
0x700f6dcc in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dcc <libgcc_s_dw2-1!__deregister_frame_info_bases+36>:
mov 0x700f900c,%ebx
(gdb)
0x700f6dd2 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dd2 <libgcc_s_dw2-1!__deregister_frame_info_bases+42>:
test %ebx,%ebx
(gdb)
0x700f6dd4 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dd4 <libgcc_s_dw2-1!__deregister_frame_info_bases+44>:
je 0x700f6e68 <libgcc_s_dw2-1!__deregister_frame_info_bases+192>
(gdb)
0x700f6dda in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dda <libgcc_s_dw2-1!__deregister_frame_info_bases+50>:
movl $0x700fe038,(%esp)
(gdb)
0x700f6de1 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6de1 <libgcc_s_dw2-1!__deregister_frame_info_bases+57>:
call 0x700f8140 <libgcc_s_dw2-1!__emutls_register_common+1872>
(gdb) ni
0x700f8140 in libgcc_s_dw2-1!__emutls_register_common ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f8140 <libgcc_s_dw2-1!__emutls_register_common+1872>:
jmp *0x701000f4
(gdb)
0x75b91400 in KERNEL32!InterlockedIncrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91400 <KERNEL32!InterlockedIncrement>: mov %edi,%edi
(gdb)
0x75b91402 in KERNEL32!InterlockedIncrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91402 <KERNEL32!InterlockedIncrement+2>: push %ebp
(gdb)
0x75b91403 in KERNEL32!InterlockedIncrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91403 <KERNEL32!InterlockedIncrement+3>: mov %esp,%ebp
(gdb)
0x75b91405 in KERNEL32!InterlockedIncrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91405 <KERNEL32!InterlockedIncrement+5>: pop %ebp
(gdb)
0x75b91406 in KERNEL32!InterlockedIncrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91406 <KERNEL32!InterlockedIncrement+6>:
jmp 0x75b91380 <KERNEL32!GetConsoleMode+88>
(gdb)
0x75b91380 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91380 <KERNEL32!GetConsoleMode+88>: mov 0x4(%esp),%ecx
(gdb)
0x75b91384 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91384 <KERNEL32!GetConsoleMode+92>: mov $0x1,%eax
(gdb)
0x75b91389 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91389 <KERNEL32!GetConsoleMode+97>: lock xadd %eax,(%ecx)
(gdb)
0x75b9138d in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b9138d <KERNEL32!GetConsoleMode+101>: inc %eax
(gdb)
0x75b9138e in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b9138e <KERNEL32!GetConsoleMode+102>: ret $0x4
(gdb)
0x700f6de6 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6de6 <libgcc_s_dw2-1!__deregister_frame_info_bases+62>:
push %ecx
(gdb) ni
0x700f6de7 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6de7 <libgcc_s_dw2-1!__deregister_frame_info_bases+63>:
test %eax,%eax
(gdb)
0x700f6de9 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6de9 <libgcc_s_dw2-1!__deregister_frame_info_bases+65>:
jne 0x700f6ef4 <libgcc_s_dw2-1!__deregister_frame_info_bases+332>
(gdb)
0x700f6def in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6def <libgcc_s_dw2-1!__deregister_frame_info_bases+71>:
mov 0x700fe040,%eax
(gdb)
0x700f6df4 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6df4 <libgcc_s_dw2-1!__deregister_frame_info_bases+76>:
test %eax,%eax
(gdb)
0x700f6df6 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6df6 <libgcc_s_dw2-1!__deregister_frame_info_bases+78>:
je 0x700f6e16 <libgcc_s_dw2-1!__deregister_frame_info_bases+110>
(gdb)
0x700f6df8 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6df8 <libgcc_s_dw2-1!__deregister_frame_info_bases+80>:
cmp %esi,0xc(%eax)
(gdb)
0x700f6dfb in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6dfb <libgcc_s_dw2-1!__deregister_frame_info_bases+83>:
jne 0x700f6e0f <libgcc_s_dw2-1!__deregister_frame_info_bases+103>
(gdb)
0x700f6e0f in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e0f <libgcc_s_dw2-1!__deregister_frame_info_bases+103>:
mov 0x14(%eax),%ebx
(gdb)
0x700f6e12 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e12 <libgcc_s_dw2-1!__deregister_frame_info_bases+106>:
test %ebx,%ebx
(gdb)
0x700f6e14 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e14 <libgcc_s_dw2-1!__deregister_frame_info_bases+108>:
jne 0x700f6e04 <libgcc_s_dw2-1!__deregister_frame_info_bases+92>
(gdb)
0x700f6e04 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e04 <libgcc_s_dw2-1!__deregister_frame_info_bases+92>:
cmp %esi,0xc(%ebx)
(gdb)
0x700f6e07 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e07 <libgcc_s_dw2-1!__deregister_frame_info_bases+95>:
je 0x700f6ea8 <libgcc_s_dw2-1!__deregister_frame_info_bases+256>
(gdb)
0x700f6e0d in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e0d <libgcc_s_dw2-1!__deregister_frame_info_bases+101>:
mov %ebx,%eax
(gdb)
0x700f6e0f in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e0f <libgcc_s_dw2-1!__deregister_frame_info_bases+103>:
mov 0x14(%eax),%ebx
(gdb)
0x700f6e12 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e12 <libgcc_s_dw2-1!__deregister_frame_info_bases+106>:
test %ebx,%ebx
(gdb)
0x700f6e14 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e14 <libgcc_s_dw2-1!__deregister_frame_info_bases+108>:
jne 0x700f6e04 <libgcc_s_dw2-1!__deregister_frame_info_bases+92>
(gdb)
0x700f6e16 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e16 <libgcc_s_dw2-1!__deregister_frame_info_bases+110>:
mov 0x700fe044,%ebx
(gdb)
0x700f6e1c in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e1c <libgcc_s_dw2-1!__deregister_frame_info_bases+116>:
test %ebx,%ebx
(gdb)
0x700f6e1e in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e1e <libgcc_s_dw2-1!__deregister_frame_info_bases+118>:
je 0x700f6e4d <libgcc_s_dw2-1!__deregister_frame_info_bases+165>
(gdb)
0x700f6e4d in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e4d <libgcc_s_dw2-1!__deregister_frame_info_bases+165>:
mov 0x700f901c,%ecx
(gdb)
0x700f6e53 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e53 <libgcc_s_dw2-1!__deregister_frame_info_bases+171>:
test %ecx,%ecx
(gdb)
0x700f6e55 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e55 <libgcc_s_dw2-1!__deregister_frame_info_bases+173>:
jne 0x700f6eb0 <libgcc_s_dw2-1!__deregister_frame_info_bases+264>
(gdb)
0x700f6eb0 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6eb0 <libgcc_s_dw2-1!__deregister_frame_info_bases+264>:
movl $0x700fe038,(%esp)
(gdb)
0x700f6eb7 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6eb7 <libgcc_s_dw2-1!__deregister_frame_info_bases+271>:
call 0x700f8198 <libgcc_s_dw2-1!__emutls_register_common+1960>
(gdb)
0x700f8198 in libgcc_s_dw2-1!__emutls_register_common ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f8198 <libgcc_s_dw2-1!__emutls_register_common+1960>:
jmp *0x701000f0
(gdb)
0x75b913f0 in KERNEL32!InterlockedDecrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913f0 <KERNEL32!InterlockedDecrement>: mov %edi,%edi
(gdb)
0x75b913f2 in KERNEL32!InterlockedDecrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913f2 <KERNEL32!InterlockedDecrement+2>: push %ebp
(gdb)
0x75b913f3 in KERNEL32!InterlockedDecrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913f3 <KERNEL32!InterlockedDecrement+3>: mov %esp,%ebp
(gdb)
0x75b913f5 in KERNEL32!InterlockedDecrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913f5 <KERNEL32!InterlockedDecrement+5>: pop %ebp
(gdb)
0x75b913f6 in KERNEL32!InterlockedDecrement ()
from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913f6 <KERNEL32!InterlockedDecrement+6>:
jmp 0x75b91394 <KERNEL32!GetConsoleMode+108>
(gdb)
0x75b91394 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91394 <KERNEL32!GetConsoleMode+108>: mov 0x4(%esp),%ecx
(gdb)
0x75b91398 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b91398 <KERNEL32!GetConsoleMode+112>: mov $0xffffffff,%eax
(gdb)
0x75b9139d in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b9139d <KERNEL32!GetConsoleMode+117>: lock xadd %eax,(%ecx)
(gdb)
0x75b913a1 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913a1 <KERNEL32!GetConsoleMode+121>: dec %eax
(gdb)
0x75b913a2 in KERNEL32!GetConsoleMode () from C:\Windows\syswow64\kernel32.dll
1: x/i $pc
=> 0x75b913a2 <KERNEL32!GetConsoleMode+122>: ret $0x4
(gdb)
0x700f6ebc in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6ebc <libgcc_s_dw2-1!__deregister_frame_info_bases+276>:
push %edx
(gdb) ni
0x700f6ebd in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6ebd <libgcc_s_dw2-1!__deregister_frame_info_bases+277>:
test %eax,%eax
(gdb)
0x700f6ebf in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6ebf <libgcc_s_dw2-1!__deregister_frame_info_bases+279>:
js 0x700f6e57 <libgcc_s_dw2-1!__deregister_frame_info_bases+175>
(gdb)
0x700f6e57 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e57 <libgcc_s_dw2-1!__deregister_frame_info_bases+175>:
test %ebx,%ebx
(gdb)
0x700f6e59 in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6e59 <libgcc_s_dw2-1!__deregister_frame_info_bases+177>:
je 0x700f6f5d <libgcc_s_dw2-1!__deregister_frame_info_bases+437>
(gdb)
0x700f6f5d in libgcc_s_dw2-1!__deregister_frame_info_bases ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f6f5d <libgcc_s_dw2-1!__deregister_frame_info_bases+437>:
call 0x700f80f8 <libgcc_s_dw2-1!__emutls_register_common+1800>
(gdb)
0x700f80f8 in libgcc_s_dw2-1!__emutls_register_common ()
from D:\usr\bin\libgcc_s_dw2-1.dll
1: x/i $pc
=> 0x700f80f8 <libgcc_s_dw2-1!__emutls_register_common+1800>:
jmp *0x70100134
(gdb)
0x753f8e6b in msvcrt!abort () from C:\Windows\syswow64\msvcrt.dll
1: x/i $pc
=> 0x753f8e6b <msvcrt!abort>: mov %edi,%edi
(gdb)
