Hello,

I would like to use virtual methods in my C++-project.
Then I link the project with the following linker script, the shows alot
of errors:

Linking arm_gcctest.elf ...
arm-elf-gcc  -mcpu=arm7tdmi -gstabs -finline --verbose
-Wl,--start-group main.o menuTask.o  ../rtos/CPPstartup.o
../datamodel/arm/libdatamodel.a ../dcIIIcontrol/arm/libdcIIIcontrol.a
../menucontrol/arm/libmenucontrol.a ../debugLog/arm/libdebugLog.a
../common/arm/libcommon.a ../rtos/arm/librtos.a   -Wl,--end-group
--output arm_gcctest.elf  -nostartfiles -Wl,-Map=arm_gcctest.map,--cref
-T../rtos/AT91SAM7S256-ROM.ld --verbose

all: == Building target all in . ==
all: == Building target all in datamodel/ ==
all: == Building target all in dcIIIcontrol/ ==
all: == Building target all in menucontrol/ ==
all: == Building target all in debugLog/ ==
all: == Building target all in common/ ==
all: == Building target all in rtos/ ==
all: == Building target all in main/ ==
Using built-in specs.
Target: arm-elf
Configured with: ../../gcc-4.0.1/configure --enable-languages=c,c++
--enable-interwork --enable-multilib --with-gcc --with-gnu-ld
--with-gnu-as --with-stabs --disable-shared --disable-threads
--disable-win32-registry --disable-nls --target=arm-elf --with-newlib
--prefix=c:/WinARM -v
Thread model: single
gcc version 4.0.1 (WinARM)
 c:/winarm/bin/../lib/gcc/arm-elf/4.0.1/../../../../arm-elf/bin/ld.exe
-X -o arm_gcctest.elf -Lc:/winarm/bin/../lib/gcc/arm-elf/4.0.1
-Lc:/winarm/bin/../lib/gcc -Lc:/WinARM/lib/gcc/arm-elf/4.0.1
-Lc:/winarm/bin/../lib/gcc/arm-elf/4.0.1/../../../../arm-elf/lib
-Lc:/WinARM/lib/gcc/arm-elf/4.0.1/../../../../arm-elf/lib --start-group
main.o menuTask.o ../rtos/CPPstartup.o ../datamodel/arm/libdatamodel.a
../dcIIIcontrol/arm/libdcIIIcontrol.a
../menucontrol/arm/libmenucontrol.a ../debugLog/arm/libdebugLog.a
../common/arm/libcommon.a ../rtos/arm/librtos.a --end-group
-Map=arm_gcctest.map --cref -lgcc -lg -lc -lgcc
-T../rtos/AT91SAM7S256-ROM.ld
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.t._ZN8BaseMenu4initEv [00000000 -> 00000063]
overlaps section startup [00000000 -> 0000004f]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI9StartMenu [00000064 -> 0000006f] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI8BaseMenu [00000070 -> 00000077] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS8BaseMenu [00000078 -> 00000083] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS9StartMenu [00000084 -> 0000008f] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV9StartMenu [00000090 -> 0000009b] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV8BaseMenu [0000009c -> 000000a7] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI8MainMenu [000000a8 -> 000000b3] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS8MainMenu [000000b4 -> 000000bf] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV8MainMenu [000000c0 -> 000000cb] overlaps
section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI18ManualBellRingMenu [000000cc -> 000000d7]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS18ManualBellRingMenu [000000d8 -> 000000ef]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV18ManualBellRingMenu [000000f0 -> 000000fb]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI12TouchOffMenu [000000fc -> 00000107]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS12TouchOffMenu [00000108 -> 00000117]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV12TouchOffMenu [00000118 -> 00000123]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI24ClockBeatAndBellRingMenu [00000124 ->
0000012f] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS24ClockBeatAndBellRingMenu [00000130 ->
0000014b] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV24ClockBeatAndBellRingMenu [0000014c ->
00000157] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI25ImmediateBellRingProgMenu [00000158 ->
00000163] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS25ImmediateBellRingProgMenu [00000164 ->
0000017f] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV25ImmediateBellRingProgMenu [00000180 ->
0000018b] overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI13InputBellMenu [0000018c -> 00000197]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS13InputBellMenu [00000198 -> 000001a7]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV13InputBellMenu [000001a8 -> 000001b3]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTI17InputDurationMenu [000001b4 -> 000001bf]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTS17InputDurationMenu [000001c0 -> 000001d3]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
section .gnu.linkonce.r._ZTV17InputDurationMenu [000001d4 -> 000001df]
overlaps section prog [00000050 -> 0000e003]
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.t._ZN8BaseMenu4initEv lma 0x0
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section prog lma 0x50 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI9StartMenu lma 0x64
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI8BaseMenu lma 0x70 overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS8BaseMenu lma 0x78 overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS9StartMenu lma 0x84
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV9StartMenu lma 0x90
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV8BaseMenu lma 0x9c overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI8MainMenu lma 0xa8 overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS8MainMenu lma 0xb4 overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV8MainMenu lma 0xc0 overlaps
previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI18ManualBellRingMenu lma
0xcc overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS18ManualBellRingMenu lma
0xd8 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV18ManualBellRingMenu lma
0xf0 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI12TouchOffMenu lma 0xfc
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS12TouchOffMenu lma 0x108
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV12TouchOffMenu lma 0x118
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI24ClockBeatAndBellRingMenu
lma 0x124 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS24ClockBeatAndBellRingMenu
lma 0x130 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV24ClockBeatAndBellRingMenu
lma 0x14c overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI25ImmediateBellRingProgMenu
lma 0x158 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS25ImmediateBellRingProgMenu
lma 0x164 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV25ImmediateBellRingProgMenu
lma 0x180 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI13InputBellMenu lma 0x18c
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS13InputBellMenu lma 0x198
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV13InputBellMenu lma 0x1a8
overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTI17InputDurationMenu lma
0x1b4 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTS17InputDurationMenu lma
0x1c0 overlaps previous sections
c:\winarm\bin\..\lib\gcc\arm-elf\4.0.1\..\..\..\..\arm-elf\bin\ld.exe:
arm_gcctest.elf: section .gnu.linkonce.r._ZTV17InputDurationMenu lma
0x1d4 overlaps previous sections
../menucontrol/arm/libmenucontrol.a(StartMenu.o): In function
`BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__class_type_info'
../menucontrol/arm/libmenucontrol.a(MainMenu.o): In function
`BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
../menucontrol/arm/libmenucontrol.a(ManualBellRingMenu.o): In function
`BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
../menucontrol/arm/libmenucontrol.a(TouchOffMenu.o): In function
`BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
../menucontrol/arm/libmenucontrol.a(ClockBeatAndBellRingMenu.o): In
function `BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
../menucontrol/arm/libmenucontrol.a(ImmediateBellRingProgMenu.o): In
function `BaseMenu::init()':
BaseMenu.h:48: undefined reference to `vtable for
__cxxabiv1::__si_class_type_info'
../menucontrol/arm/libmenucontrol.a(InputBellMenu.o):BaseMenu.h:48: more
undefined references to `vtable for __cxxabiv1::__si_class_type_info'
follow
make[1]: *** [arm_gcctest.elf] Error 1
make: *** [all] Error 1





----- linker script  --------------

MEMORY
{
  flash  : ORIGIN = 0x00000000, LENGTH = 256K
  ram  : ORIGIN = 0x00200000, LENGTH = 64K
}

_stack_end_ = 0x00200000 + 64K - 4;

SECTIONS
{
  . = 0;
  startup :
  {
     *(.startup)  /* Ab 0 Vector Table, Modul CPPstartup.s */
  } >flash

  prog :
  {
    *(.text)
    *(.rodata)
    *(.rodata*)
    *(.glue_7)
    *(.glue_7t)
  } >flash

  /* .ctors .dtors are used for c++ constructors/destructors */
  /* added by Martin Thomas 4/2005 based on Anglia Design example */
  .ctors :
  {
    PROVIDE(_ctors_start_ = .);
    KEEP(*(SORT(.ctors.*)))
    KEEP(*(.ctors))
    PROVIDE(_ctors_end_ = .);
  } >flash

  .dtors :
  {
    PROVIDE(_dtors_start_ = .);
    KEEP(*(SORT(.dtors.*)))
    KEEP(*(.dtors))
    PROVIDE(_dtors_end_ = .);
  } >flash

    . = ALIGN(4);
  /* mthomas - end */

  _end_of_text_ = .;

  .data :
  {
    _data_beg_ = .;
    _data_beg_src_ = _end_of_text_;
    *(.data)
    _data_end_ = .;
  } >ram AT>flash

  .bss :
  {
    _bss_beg_ = .;
    *(.bss)
  } >ram

  /* Align here to ensure that the .bss section occupies space up to
  _end.  Align after .bss to ensure correct alignment even if the
  .bss section disappears because there are no input sections.  */
  . = ALIGN(32 / 8);
}
  . = ALIGN(32 / 8);
  _end = .;
  bss_end_ = . ; _bss_end_ = . ; _end_ = . ;
  PROVIDE (end = .);


Thanks
Christian