hi, all

i'm working on s3c2410 based development platform now and want to get base address and size of .text, .data, .bss segments in assembly language using GNU as, but when i linked the source code using "arm-linux-gcc -T lnk.lds", it told me:

""""""
make all
arm-linux-gcc -T lnk.lds -o testLeds.elf 2410init.o 2410IIC.o 2410lib.o 2410slib.o 2410swis.o main.o mmu.o
collect2: ld terminated with signal 11 [Segmentation fault]
/home/phoenixcyan/workspace/opt/openjtag/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/../../../../arm-linux/lib/libc_nonshared.a(elf-init.oST)(.text+0x5c): In function `__libc_csu_init':
: undefined reference to `__init_array_end'
/home/phoenixcyan/workspace/opt/openjtag/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/../../../../arm-linux/lib/libc_nonshared.a(elf-init.oST)(.text+0x60): In function `__libc_csu_init':
: undefined reference to `__init_array_start'
/home/phoenixcyan/workspace/opt/openjtag/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/../../../../arm-linux/lib/libc_nonshared.a(elf-init.oST)(.text+0xbc): In function `__libc_csu_fini':
: undefined reference to `__fini_array_end'
/home/phoenixcyan/workspace/opt/openjtag/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/../../../../arm-linux/lib/libc_nonshared.a(elf-init.oST)(.text+0xc0): In function `__libc_csu_fini':
: undefined reference to `__fini_array_start'
/home/phoenixcyan/workspace/opt/openjtag/gcc-3.4.5-glibc-2.3.6/bin/../lib/gcc/arm-linux/3.4.5/../../../../arm-linux/bin/ld: BFD 2.15 assertion fail /work/tools/create_crosstools/crosstool-0.43/build/arm-linux/gcc-3.4.5-glibc-2.3.6/binutils-2.15/bfd/elf32-arm.h:3905
make: *** [all] Error 1
""""""

the contents of lnk.lds are:

""""""
SECTIONS {
. = 0x00;
_text = .;
.text : { *(.text) }
_etext = .;
.rodata ALIGN(4) : {*(.rodata)}
_data = .;
.data ALIGN(4) : { *(.data) }
_edata = .;
_bstart = .;
.bss ALIGN(4) : { *(.bss) *(COMMON) }
_bend = .;
}
""""""

then i compile it without specifying "-T lnk.lds", it showed:

""""""
make all
arm-linux-gcc -o testLeds.elf 2410init.o 2410IIC.o 2410lib.o 2410slib.o 2410swis.o main.o mmu.o
2410init.o(.text+0x320):/home/phoenixcyan/workspace/microembed/samsung/work/eclipse_projects/testMotorC/2410init.s:341: undefined reference to `_data'
2410init.o(.text+0x324):/home/phoenixcyan/workspace/microembed/samsung/work/eclipse_projects/testMotorC/2410init.s:341: undefined reference to `_bstart'
2410init.o(.text+0x328):/home/phoenixcyan/workspace/microembed/samsung/work/eclipse_projects/testMotorC/2410init.s:341: undefined reference to `_bend'
2410lib.o(.data+0x0): In function `Delay':
/home/phoenixcyan/workspace/microembed/samsung/work/eclipse_projects/testMotorC/2410lib.c:21: undefined reference to `_data'
collect2: ld returned 1 exit status
make: *** [all] Error 1
""""""

as i wrote assembly code in file 2410init.s below:

""""""
.extern _text @ Base of .text
.extern _etext @ End of .text
.extern _data @ Base of .data
.extern _edata @ End of .data
.extern _bstart @ Base of .bss
.extern _bend @ End of .bss
""""""

maybe the _text, _data, _bstart are not defined internally, then i want to know how to access base address and size of .text, .data, .bss segments in assembly code, or other methods ?

thanks.