region m_text overflowed with text and data

[mariusoctavian]

I am trying to build the example:

[100%] Linking C executable release/low_power_wakeword.elf
Memory region Used Size Region Size %age Used
m_interrupts: 576 B 576 B 100.00%
m_text: 125048 B 131520 B 95.08%
m_data: 128768 B 127 KB 99.02%
m_data2: 375 KB 16 MB 2.29/Marius/TC/gcc-arm-none-eabi-7-2017-q4-major/bin/../lib/gcc/arm-none-eabi/7.2.1/../../../../arm-none-eabi/bin/ld: region m_text overflowed with text and data

The ld file is:

ENTRY(Reset_Handler)

HEAP_SIZE  = DEFINED(__heap_size__)  ? __heap_size__  : 0x12C00;
STACK_SIZE = DEFINED(__stack_size__) ? __stack_size__ : 0x0080;

/* Specify the memory areas */
MEMORY
{
  m_interrupts          (RX)  : ORIGIN = 0x1FFE0000, LENGTH = 0x00000240
  m_text                (RX)  : ORIGIN = 0x1FFE0240, LENGTH = 0x000201C0
  m_data                (RW)  : ORIGIN = 0x20000400, LENGTH = 0x0001FC00
  m_data2               (RW)  : ORIGIN = 0x80000000, LENGTH = 0x01000000
}

/* Define output sections */
SECTIONS
{

  /* Audio buffer in external memory. */
  .data2 :
  {
    *(.bss.g_external_audio_buffer*)
  } > m_data2

/* The startup code goes first into internal RAM */
  .interrupts :
  {
    __VECTOR_TABLE = .;
    __Vectors = .;
    . = ALIGN(4);
    KEEP(*(.isr_vector))     /* Startup code */
    . = ALIGN(4);
  } > m_interrupts

  .resource_table :
  {
    . = ALIGN(8);
    KEEP(*(.resource_table)) /* Resource table */
    . = ALIGN(8);
  } > m_text

    /* The program code and other data goes into internal RAM */
  .text :
  {
    . = ALIGN(4);
    *(.text)                 /* .text sections (code) */
    *(.text*)                /* .text* sections (code) */
    *(.rodata)               /* .rodata sections (constants, strings, etc.) */
    *(.rodata*)              /* .rodata* sections (constants, strings, etc.) */
    *(.glue_7)               /* glue arm to thumb code */
    *(.glue_7t)              /* glue thumb to arm code */
    *(.eh_frame)
    KEEP (*(.init))
    KEEP (*(.fini))
    . = ALIGN(4);
  } > m_text

  .ARM.extab :
  {
    *(.ARM.extab* .gnu.linkonce.armextab.*)
  } > m_text

  .ARM :
  {
    __exidx_start = .;
    *(.ARM.exidx*)
    __exidx_end = .;
  } > m_text

 .ctors :
  {
    __CTOR_LIST__ = .;
    /* gcc uses crtbegin.o to find the start of
       the constructors, so we make sure it is
       first.  Because this is a wildcard, it
       doesn't matter if the user does not
       actually link against crtbegin.o; the
       linker won't look for a file to match a
       wildcard.  The wildcard also means that it
       doesn't matter which directory crtbegin.o
       is in.  */
    KEEP (*crtbegin.o(.ctors))
    KEEP (*crtbegin?.o(.ctors))
    /* We don't want to include the .ctor section from
       from the crtend.o file until after the sorted ctors.
       The .ctor section from the crtend file contains the
       end of ctors marker and it must be last */
    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors))
    KEEP (*(SORT(.ctors.*)))
    KEEP (*(.ctors))
    __CTOR_END__ = .;
  } > m_text

  .dtors :
  {
    __DTOR_LIST__ = .;
    KEEP (*crtbegin.o(.dtors))
    KEEP (*crtbegin?.o(.dtors))
    KEEP (*(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors))
    KEEP (*(SORT(.dtors.*)))
    KEEP (*(.dtors))
    __DTOR_END__ = .;
  } > m_text

  .preinit_array :
  {
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array*))
    PROVIDE_HIDDEN (__preinit_array_end = .);
  } > m_text

  .init_array :
  {
    PROVIDE_HIDDEN (__init_array_start = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array*))
    PROVIDE_HIDDEN (__init_array_end = .);
  } > m_text

  .fini_array :
  {
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array*))
    PROVIDE_HIDDEN (__fini_array_end = .);
  } > m_text

  __etext = .;    /* define a global symbol at end of code */
  __DATA_ROM = .; /* Symbol is used by startup for data initialization */

  .data : AT(__DATA_ROM)
  {
    . = ALIGN(4);
    __DATA_RAM = .;
    __data_start__ = .;      /* create a global symbol at data start */
    *(.data)                 /* .data sections */
    *(.data*)                /* .data* sections */
    KEEP(*(.jcr*))
    . = ALIGN(4);
    __data_end__ = .;        /* define a global symbol at data end */
  } > m_data

  __CACHE_REGION_START = ORIGIN(m_interrupts);
  __CACHE_REGION_SIZE  = 0;
  __NDATA_ROM = __DATA_ROM + SIZEOF(.data); /* Symbol is used by startup for ncache data initialization */

  .ncache.init : AT(__NDATA_ROM)
  {
    __noncachedata_start__ = .;   /* create a global symbol at ncache data start */
    *(NonCacheable.init)
    . = ALIGN(4);
    __noncachedata_init_end__ = .;   /* create a global symbol at initialized ncache data end */
  } > m_data

  . = __noncachedata_init_end__;
  .ncache :
  {
    *(NonCacheable)
    . = ALIGN(4);
    __noncachedata_end__ = .;     /* define a global symbol at ncache data end */
  } > m_data

  __DATA_END = __DATA_ROM + (__data_end__ - __data_start__);
  text_end = ORIGIN(m_text) + LENGTH(m_text);
  ASSERT(__DATA_END <= text_end, "region m_text overflowed with text and data")

  /* Uninitialized data section */
  .bss :
  {
    /* This is used by the startup in order to initialize the .bss section */
    . = ALIGN(4);
    __START_BSS = .;
    __bss_start__ = .;
    *(.bss)
    *(.bss*)
    *(COMMON)
    . = ALIGN(4);
    __bss_end__ = .;
    __END_BSS = .;
  } > m_data

  .heap :
  {
    . = ALIGN(8);
    __end__ = .;
    PROVIDE(end = .);
    __HeapBase = .;
    . += HEAP_SIZE;
    __HeapLimit = .;
    __heap_limit = .; /* Add for _sbrk */
  } > m_data

  .stack :
  {
    . = ALIGN(8);
    . += STACK_SIZE;
  } > m_data

  /* Initializes stack on the end of block */
  __StackTop   = ORIGIN(m_data) + LENGTH(m_data);
  __StackLimit = __StackTop - STACK_SIZE;
  PROVIDE(__stack = __StackTop);

  .ARM.attributes 0 : { *(.ARM.attributes) }

  ASSERT(__StackLimit >= __HeapLimit, "region m_data overflowed with stack and heap")
}

[Harry_Zhang · Accepted solution]

Hi @mariusoctavian 

The error region m_text overflowed with text and data indicates that the available memory in the m_text section (0x1FFE0240 to 0x20000400, ~129 KB) is insufficient for the .text section of your program.

So you can move specific .rodata to other region.

BR

Harry

[mariusoctavian]

Used another ld file and worked