Re: bin/47271: host (1) dumps core on latest netbsd-6

[Hisashi T Fujinaka <htodd%twofifty.com@localhost>]

The following reply was made to PR bin/47271; it has been noted by GNATS.

From: Hisashi T Fujinaka <htodd%twofifty.com@localhost>
To: gnats-bugs%NetBSD.org@localhost
Cc: gnats-admin%NetBSD.org@localhost, netbsd-bugs%NetBSD.org@localhost
Subject: Re: bin/47271: host (1) dumps core on latest netbsd-6
Date: Sat, 1 Dec 2012 16:27:50 -0800 (PST)

 Disassembly of my _lwp_makecontext
 
 (gdb) disas _lwp_makecontext
 Dump of assembler code for function _lwp_makecontext:
     0xbb6c43d0 <+0>:     push   %ebp
     0xbb6c43d1 <+1>:     mov    %esp,%ebp
     0xbb6c43d3 <+3>:     push   %ebx
     0xbb6c43d4 <+4>:     sub    $0x14,%esp
     0xbb6c43d7 <+7>:     call   0xbb6c43dc <_lwp_makecontext+12>
     0xbb6c43dc <+12>:    pop    %ebx
     0xbb6c43dd <+13>:    add    $0xb51e0,%ebx
     0xbb6c43e3 <+19>:    mov    0x8(%ebp),%eax
     0xbb6c43e6 <+22>:    mov    %eax,(%esp)
     0xbb6c43e9 <+25>:    call   0xbb69e67c <_getcontext@plt>
     0xbb6c43ee <+30>:    mov    0x8(%ebp),%edx
     0xbb6c43f1 <+33>:    movl   $0x0,0x4(%edx)
     0xbb6c43f8 <+40>:    mov    0x18(%ebp),%eax
     0xbb6c43fb <+43>:    mov    %eax,0x18(%edx)
     0xbb6c43fe <+46>:    mov    0x1c(%ebp),%eax
     0xbb6c4401 <+49>:    mov    %eax,0x1c(%edx)
     0xbb6c4404 <+52>:    mov    0xc(%ebp),%eax
     0xbb6c4407 <+55>:    mov    %eax,0x5c(%edx)
     0xbb6c440a <+58>:    mov    0x18(%ebp),%eax
     0xbb6c440d <+61>:    add    0x1c(%ebp),%eax
     0xbb6c4410 <+64>:    and    $0xfffffffc,%eax
     0xbb6c4413 <+67>:    mov    0x10(%ebp),%edx
     0xbb6c4416 <+70>:    mov    %edx,-0x4(%eax)
     0xbb6c4419 <+73>:    lea    -0x8(%eax),%edx
     0xbb6c441c <+76>:    mov    -0x238(%ebx),%ecx
     0xbb6c4422 <+82>:    mov    %ecx,-0x8(%eax)
     0xbb6c4425 <+85>:    mov    0x8(%ebp),%eax
     0xbb6c4428 <+88>:    mov    %edx,0x68(%eax)
     0xbb6c442b <+91>:    mov    0x14(%ebp),%edx
 => 0xbb6c442e <+94>:    mov    %edx,0x2f4(%eax)
     0xbb6c4434 <+100>:   orl    $0x80000,(%eax)
     0xbb6c443a <+106>:   add    $0x14,%esp
     0xbb6c443d <+109>:   pop    %ebx
     0xbb6c443e <+110>:   pop    %ebp
     0xbb6c443f <+111>:   ret 
 End of assembler dump.
 (gdb)
 
 -- 
 Hisashi T Fujinaka - htodd%twofifty.com@localhost
 BSEE(6/86) + BSChem(3/95) + BAEnglish(8/95) + MSCS(8/03) + $2.50 = latte