[fpc-pascal]FPC Problem with reAllocMem...

[James Mills]

Hi all,

I've annoyed you guys enough with pointers, objects and clases :P I'm
sorry :)

This bugs me though as to why this program crashes at the 4th call to
addNick(nick: String);

Here is the gdb results, and attached is the source code if anyone is
willing to have a look.

thank you very much :)

James

$ gdb datatest
gdb: Symbol `emacs_ctlx_keymap' has different size in shared object, consider re-linking
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This GDB was configured as "i386-linux"...
(gdb) break datanicks.pas:47
Breakpoint 1 at $8058f2d: file datanicks.pas, line 47.
(gdb) run
Starting program: /home/pircsrv/src/test/datanicks/datatest 
sizeOf(TNick) = 4
Memory available before getMem: 261856
Memory available after getMem: 261840
Command: a
Nick to add: prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)

Breakpoint 1, ADDNICK (valDATA='prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)')
    at datanicks.pas:47
47              MM := memAvail;
(gdb) c
Continuing.
Memory available before addNick: 261792
string = prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)
num tokens = 9
ll is well in FPC
Memory available after addNick: 259680
Command: a
Nick to add: prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)

Breakpoint 1, ADDNICK (valDATA='prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)')
    at datanicks.pas:47
47              MM := memAvail;
(gdb) c
Continuing.
Memory available before addNick: 259712
string = prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)
num tokens = 9
All is well in FPC
Memory available after addNick: 257600
Command: a
Nick to add: prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)

Breakpoint 1, ADDNICK (valDATA='prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)')
    at datanicks.pas:47
47              MM := memAvail;
(gdb) c
Continuing.
Memory available before addNick: 257632
string = prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)
num tokens = 9
All is well in FPC
Memory available after addNick: 255520
Command: a
Nick to add: prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)

Breakpoint 1, ADDNICK (valDATA='prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)')
    at datanicks.pas:47
47              MM := memAvail;
(gdb) c
Continuing.
Memory available before addNick: 255552
string = prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)
num tokens = 9

Program received signal SIGSEGV, Segmentation fault.
$08062697 in _SYSLINUX ()
(gdb) bt
#0  $08062697 in _SYSLINUX ()
#1  $080628ab in _SYSLINUX ()
#2  $08061f23 in _SYSLINUX ()
#3  $080591c6 in ADDNICK (valDATA='prologic 1 1044896365 prologic daisy test.prologitech.com 0 :ProLogiTech (www.prologitech.com)')
    at datanicks.pas:66
#4  $08065b17 in main () at datatest.pas:21
(gdb) 

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