http://d.puremagic.com/issues/show_bug.cgi?id=3387
Summary: gdb: symbols in the backtrace are not demangled
Product: D
Version: 1.047
Platform: x86
OS/Version: Linux
Status: NEW
Severity: regression
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: llu...@gmail.com
--- Comment #0 from Leandro Lucarella <llu...@gmail.com> 2009-10-12 13:04:56
PDT ---
In DMD 1.046 or older, the backtrace were broken but the symbol were demangled
(using the D GDB patch at least).
Starting at version 1.047, the symbols are not demangled anymore in GDB.
Same test program as bug 136:
--------
void main() {
static int i = 0;
while (i++ < 10)
main();
*(cast(int *)0) = 0;
}
--------
DMD evolution:
1.046
=====
--------------------
GNU gdb (GDB) 7.0.50.20090919
[...]
Reading symbols from /home/luca/tesis/dmd-1.049/dmd/linux/bug136...done.
(gdb) bt
No stack.
(gdb) run
Starting program: /home/luca/tesis/dmd-1.049/dmd/linux/bug136
[Thread debugging using libthread_db enabled]
Program received signal SIGSEGV, Segmentation fault.
0x08049b12 in D main ()
Current language: auto
The current source language is "auto; currently asm".
(gdb) bt
#0 0x08049b12 in D main ()
#1 0xbffff4d4 in ?? ()
#2 0xbffff4a0 in ?? ()
#3 0x08049b0c in D main ()
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
--------------------
1.047
=====
--------------------
GNU gdb (GDB) 7.0.50.20090919
[...]
Reading symbols from /home/luca/tesis/dmd-1.049/dmd/linux/bug136...done.
(gdb) run
Starting program: /home/luca/tesis/dmd-1.049/dmd/linux/bug136
[Thread debugging using libthread_db enabled]
Program received signal SIGSEGV, Segmentation fault.
0x08049b12 in _Dmain () at bin/bug136.d:6
6 *(cast(int *)0) = 0;
Current language: auto
The current source language is "auto; currently d".
(gdb) bt
#0 0x08049b12 in _Dmain () at bin/bug136.d:6
#1 0xbffff4d4 in ?? ()
#2 0xbffff4a0 in ?? ()
#3 0x08049b0c in _Dmain () at bin/bug136.d:5
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
--------------------
1.049
=====
--------------------
--------------------
GNU gdb (GDB) 7.0.50.20090919
[...]
Reading symbols from /home/luca/tesis/dmd-1.049/dmd/linux/bug136...done.
(gdb) run
Starting program: /home/luca/tesis/dmd-1.049/dmd/linux/bug136
[Thread debugging using libthread_db enabled]
Program received signal SIGSEGV, Segmentation fault.
0x08049b12 in _Dmain () at bin/bug136.d:6
6 *(cast(int *)0) = 0;
Current language: auto
The current source language is "auto; currently d".
(gdb) bt
#0 0x08049b12 in _Dmain () at bin/bug136.d:6
#1 0x08049b0c in _Dmain () at bin/bug136.d:5
#2 0x08049b0c in _Dmain () at bin/bug136.d:5
#3 0x08049b0c in _Dmain () at bin/bug136.d:5
#4 0x08049b0c in _Dmain () at bin/bug136.d:5
#5 0x08049b0c in _Dmain () at bin/bug136.d:5
#6 0x08049b0c in _Dmain () at bin/bug136.d:5
#7 0x08049b0c in _Dmain () at bin/bug136.d:5
#8 0x08049b0c in _Dmain () at bin/bug136.d:5
#9 0x08049b0c in _Dmain () at bin/bug136.d:5
#10 0x08049b0c in _Dmain () at bin/bug136.d:5
#11 0x08057599 in main ()
--------------------
The backtrace looks nice in DMD 1.049 but the symbols can't be demangled by
GDB.
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