[Bug rtl-optimization/49230] please provide workaround for setjmp/longjmp in mingw32

["jojelino at gmail dot com" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49230

--- Comment #2 from gee <jojelino at gmail dot com> 2011-06-29 17:08:41 UTC ---
Created attachment 24635
  --> http://gcc.gnu.org/bugzilla/attachment.cgi?id=24635
testcase

i hope it would be helpful
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warning: the current range check setting does not match the language.


warning: the current type check setting does not match the language.

Whether backtraces should continue past the entry point of a program is off.
Reading symbols from /tmp/a...done.
(gdb) r
Starting program: /tmp/a
[New Thread 9616.0x1628]

Program received signal SIGSEGV, Segmentation fault.
0x77b66502 in msvcrt!_abnormal_termination ()
   from /cygdrive/c/WINDOWS/system32/msvcrt.dll
(gdb) bt
#0  0x77b66502 in msvcrt!_abnormal_termination ()
   from /cygdrive/c/WINDOWS/system32/msvcrt.dll
#1  0x77b6ac67 in strerror () from /cygdrive/c/WINDOWS/system32/msvcrt.dll
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
(gdb) disassemble
Dump of assembler code for function msvcrt!_abnormal_termination:
   0x77b664cf <+0>:     xor    %eax,%eax
   0x77b664d1 <+2>:     mov    %fs:0x0,%ecx
   0x77b664d8 <+9>:     cmpl   $0x77b66424,0x4(%ecx)
   0x77b664df <+16>:    jne    0x77b664f1 <msvcrt!_abnormal_termination+34>
   0x77b664e1 <+18>:    mov    0xc(%ecx),%edx
   0x77b664e4 <+21>:    mov    0xc(%edx),%edx
   0x77b664e7 <+24>:    cmp    %edx,0x8(%ecx)
   0x77b664ea <+27>:    jne    0x77b664f1 <msvcrt!_abnormal_termination+34>
   0x77b664ec <+29>:    mov    $0x1,%eax
   0x77b664f1 <+34>:    ret
   0x77b664f2 <+35>:    push   %ebx
   0x77b664f3 <+36>:    push   %ecx
   0x77b664f4 <+37>:    mov    $0x77b919b0,%ebx
   0x77b664f9 <+42>:    jmp    0x77b66505 <msvcrt!_abnormal_termination+54>
   0x77b664fb <+44>:    push   %ebx
   0x77b664fc <+45>:    push   %ecx
   0x77b664fd <+46>:    mov    $0x77b919b0,%ebx
=> 0x77b66502 <+51>:    mov    0x8(%ebp),%ecx
   0x77b66505 <+54>:    mov    %ecx,0x8(%ebx)
   0x77b66508 <+57>:    mov    %eax,0x4(%ebx)
   0x77b6650b <+60>:    mov    %ebp,0xc(%ebx)
   0x77b6650e <+63>:    push   %ebp
---Type <return> to continue, or q <return> to quit---q
Quit