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bug#18438: 24.4.50; assertion failed in bidi.c

From: aidalgol
Subject: bug#18438: 24.4.50; assertion failed in bidi.c
Date: Wed, 17 Sep 2014 10:42:18 +1200
User-agent: Roundcube Webmail/0.5.3

On Tue, 16 Sep 2014 17:33:09 +0300, Eli Zaretskii wrote:
If you don't mind messing with assembler, it would be interesting to
disassemble bidi_check_type, see in which register it holds the value
when it tests it, and then look at the actual value in that register
in the bidi_check_type's call-stack frame.

Sure, but I'm not very familiar with x86 assembly, so I'll just post the entire disassemble output to start with and someone else will have to identify the register of interest.

Dump of assembler code for function bidi_check_type:
   0x00000001005010c3 <+0>:     push   %rbp
   0x00000001005010c4 <+1>:     mov    %rsp,%rbp
   0x00000001005010c7 <+4>:     sub    $0x20,%rsp
   0x00000001005010cb <+8>:     mov    %ecx,0x10(%rbp)
0x00000001005010ce <+11>: mov 0x58ab9b(%rip),%rax # 0x100a8bc70 <.refptr.suppress_checking>
   0x00000001005010d5 <+18>:    movzbl (%rax),%eax
   0x00000001005010d8 <+21>:    xor    $0x1,%eax
   0x00000001005010db <+24>:    test   %al,%al
   0x00000001005010dd <+26>:    je     0x1005010ff <bidi_check_type+60>
   0x00000001005010df <+28>:    cmpl   $0x17,0x10(%rbp)
   0x00000001005010e3 <+32>:    jbe    0x1005010ff <bidi_check_type+60>
   0x00000001005010e5 <+34>:    mov    $0x149,%r8d
0x00000001005010eb <+40>: lea 0x5599de(%rip),%rdx # 0x100a5aad0 <DEFAULT_REHASH_SIZE+56> 0x00000001005010f2 <+47>: lea 0x5599df(%rip),%rcx # 0x100a5aad8 <DEFAULT_REHASH_SIZE+64>
   0x00000001005010f9 <+54>:    callq  0x1005b9a15 <die>
=> 0x00000001005010fe <+59>:    nop
   0x00000001005010ff <+60>:    add    $0x20,%rsp
   0x0000000100501103 <+64>:    pop    %rbp
   0x0000000100501104 <+65>:    retq
End of assembler dump.

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