[bug #41485] SourceView.C:8724: assertion `*proc_id == *id' failed

[Peeter Joot]

URL:
  <http://savannah.gnu.org/bugs/?41485>

                 Summary: SourceView.C:8724: assertion `*proc_id == *id'
failed
                 Project: DDD
            Submitted by: peeterjoot
            Submitted on: Thu 06 Feb 2014 07:21:48 PM GMT
                Category: None
                Severity: 3 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any
                 Release: None

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Details:

SourceView.C: In function `static void SourceView::UpdateGlyphsWorkProc(void*,
XtIntervalId*)':
SourceView.C:8724: assertion `*proc_id == *id' failed
Aborted (core dumped)

Core was generated by `ddd -d /vbs/common/osse/core/src -d
/vbs/common/osse/core/inc -d /vbs/engn/sqe'.
Program terminated with signal 6, Aborted.
#0  0x00007fd2f2280b55 in raise () from /lib64/libc.so.6
(gdb) where
#0  0x00007fd2f2280b55 in raise () from /lib64/libc.so.6
#1  0x00007fd2f2282131 in abort () from /lib64/libc.so.6
#2  0x0000000000428fdd in ddd_assert_fail (assertion=0x622e52 "*proc_id ==
*id", file=<value optimized out>, line=<value optimized out>,
    function=0x623ce0 "static void SourceView::UpdateGlyphsWorkProc(void*,
XtIntervalId*)") at assert.C:38
#3  0x00000000005a53d1 in SourceView::UpdateGlyphsWorkProc
(client_data=0x8aa218, id=<value optimized out>) at SourceView.C:8724
#4  0x0000000000435b53 in MyTimerProc (client_data=0xb89cc0) at TimeOut.C:114
#5  0x00007fd2f3d6374f in ?? () from /usr/lib64/libXt.so.6
#6  0x00007fd2f3d638a9 in XtAppNextEvent () from /usr/lib64/libXt.so.6
#7  0x000000000041441a in process_next_event () at ddd.C:3221
#8  0x00000000004d685d in ddd_main_loop () at mainloop.C:120
#9  0x000000000042673b in main (argc=<value optimized out>, argv=<value
optimized out>) at ddd.C:3175

Unfortunately, this assertion doesn't dump the values that it is failing, and
the build is optimized, and unavailable from the core:

(gdb) frame 3
#3  0x00000000005a53d1 in SourceView::UpdateGlyphsWorkProc
(client_data=0x8aa218, id=<value optimized out>) at SourceView.C:8724
8724            assert(*proc_id == *id);
(gdb) p id
$1 = <value optimized out>
(gdb) p proc_id
$2 = <value optimized out>

Not sure if the value is available from the regs, since it looks like %rdi
gets clobbered by the assert call:

Dump of assembler code for function
SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*):
   0x00000000005a5390 <+0>:     mov    %rbx,-0x20(%rsp)
   0x00000000005a5395 <+5>:     mov    %rbp,-0x18(%rsp)
   0x00000000005a539a <+10>:    mov    %rdi,%rbx
   0x00000000005a539d <+13>:    mov    %r12,-0x10(%rsp)
   0x00000000005a53a2 <+18>:    mov    %r13,-0x8(%rsp)
   0x00000000005a53a7 <+23>:    sub    $0x28,%rsp
   0x00000000005a53ab <+27>:    test   %rdi,%rdi
   0x00000000005a53ae <+30>:    je     0x5a53e0
<SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*)+80>
   0x00000000005a53b0 <+32>:    mov    (%rsi),%rax
   0x00000000005a53b3 <+35>:    cmp    %rax,(%rdi)
   0x00000000005a53b6 <+38>:    je     0x5a53d1
<SourceView::UpdateGlyphsWorkProc(XtPointer, XtIntervalId*)+65>
   0x00000000005a53b8 <+40>:    mov    $0x623ce0,%ecx
   0x00000000005a53bd <+45>:    mov    $0x2214,%edx
   0x00000000005a53c2 <+50>:    mov    $0x622aec,%esi
   0x00000000005a53c7 <+55>:    mov    $0x622e52,%edi
   0x00000000005a53cc <+60>:    callq  0x428eb0 <ddd_assert_fail(char const*,
char const*, unsigned int, char const*)>
=> 0x00000000005a53d1 <+65>:    movq   $0x0,(%rdi)
   0x00000000005a53d8 <+72>:    nopl   0x0(%rax,%rax,1)
   0x00000000005a53e0 <+80>:    mov    0x3048e9(%rip),%rdi        # 0x8a9cd0
<_ZN10SourceView13source_text_wE>

Here's what was in the regs for this frame:

(gdb) info registers
rax            0x0      0
rbx            0x8aa218 9085464
rcx            0xffffffffffffffff       -1
rdx            0x6      6
rsi            0x2df0d7 3010775
rdi            0x2df0d7 3010775
rbp            0x7fff349f8ea8   0x7fff349f8ea8
rsp            0x7fff349f8e30   0x7fff349f8e30
r8             0xffffff00       4294967040
r9             0x7fd2f25c0e60   140543985978976
r10            0x8      8
r11            0x246    582
r12            0x8cc7e0 9226208
r13            0x0      0
r14            0x0      0
r15            0x7fff349f8f20   140734076260128
rip            0x5a53d1 0x5a53d1 <SourceView::UpdateGlyphsWorkProc(XtPointer,
XtIntervalId*)+65>
eflags         0x246    [ PF ZF IF ]
cs             0x33     51
ss             0x2b     43
ds             0x0      0
es             0x0      0
fs             0x0      0
gs             0x0      0






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