LD memory overlap problem

[marknsf]

I am trying to use VisualGDB to rebuild some old software written for NXP LPC2140 series. The code compiles without error but LD exits with the following error:

c:/sysgcc/arm-eabi/bin/../lib/gcc/arm-eabi/5.3.0/../../../../arm-eabi/bin/ld.exe: section .mdata loaded at [00000764,00000767] overlaps section .text.initDisplay loaded at [000005cc,000008e3]
1>collect2.exe : error : ld returned 1 exit status

The source included the LD script shown below. I reviewed it against the LD command language tutorial which shows almost exactly this case and .mdata should have been offset past the .text and .rodata. Has something changed in the LD syntax that would cause this?

Thanks,
Mark
——————————————————————————————————————————-
ENTRY(_Rom_Start)

MEMORY
{
rom (rx) : ORIGIN = 0x00000000, LENGTH = 256K /* LPC2146 */
ram (!r) : ORIGIN = 0x40000000, LENGTH = 32K /* LPC2146 */
}

SECTIONS
{
.boot : { _boot = . ; *(.bootLPC2148) _eboot = . ; } > rom
.text : { _text = . ; *(.text) *(.gnu*) _etext = . ;} > rom
.rodata : { *(.rodata*) . = ALIGN(4); _endOfRom = . ; } > rom

.mdata 0x40000200: AT(ADDR(.text) + SIZEOF(.text) + SIZEOF(.rodata))
{ _data = . ; *(.data); _edata = . ; } > ram

.bss : { _bstart = . ; *(.bss) *(COMMON); _bend = .;} > ram

.stack : { _stack = . ; *(.Stack); _estack = . ; _heap = . ; } > ram

_Ram_Start = 0x40000000;

/DISCARD/ : { *(.comment) }
/DISCARD/ : { *(.ARM.*) }
}

• This topic was modified 8 years ago by marknsf.

[support]

Hi,

We are not aware of this problem. Where did you get that linker script? The ones shipped with VisualGDB should not contain any ‘mdata’ sections. Perhaps there is a newer version of the script available?

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