STM32CubeIDE 1.15.0: elf has a LOAD segment with RWX permissions

[RajeevAroraCrcEvans]

Hi @Imen.D  , @Khouloud ZEMMELI ,

After updating the STM32CubeIDE to version 1.15.0 (today) I am observing below warning.

The LD file has not changed. It has RAM and MRAM RWX

C:/ST/STM32CubeIDE_1.15.0/STM32CubeIDE/plugins/com.st.stm32cube.ide.mcu.externaltools.gnu-tools-for-stm32.12.3.rel1.win32_1.0.100.202403111256/tools/bin/../lib/gcc/arm-none-eabi/12.3.1/../../../../arm-none-eabi/bin/ld.exe: warning: xxx.elf has a LOAD segment with RWX permissions

Memory sections in LD file:

MEMORY
{
ITCMRAM (xrw) : ORIGIN = 0x00000000, LENGTH = 64K
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 2048K
DTCMRAM (xrw) : ORIGIN = 0x20000000, LENGTH = 128K
RAM_D1 (xrw) : ORIGIN = 0x24000000, LENGTH = 512K
RAM_D2 (xrw) : ORIGIN = 0x30000000, LENGTH = 288K
RAM_D3 (xrw) : ORIGIN = 0x38000000, LENGTH = 64K
MRAM (xrw) : ORIGIN = 0x60000000, LENGTH = 1024K
}

Please help resolve the concern.

Regards,

Rajeev

[JensH]

Hi @bruno_b2s ,

I think the problem appears because of the GCC update.

I generated a new project in STM32CubeIDE to check if there is also a warning. But there wasn't one, so I compared the files with my old project. There are also comments in the newly generated *.ld-file witch explain the problem a little bit:

/* The READONLY keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */

Best regards,

Jens

[PHolt.1]

I get this too. This is complicated. But v15 is brain-dead anyway, so I reverted to 1.14.1 and everything is perfect. 😁

[PHolt.1]

To remove that warning just add "--no-warn-rwx-segments" and "--no-warn-execstack" to the linker flags under "Miscellaneous" tab.

Source: https://lore.kernel.org/all/20220802083023.1488625-1-joel@jms.id.au/T/

(from eevblog)

[Eddiie]

This is complete hell.

Where exactly is this file?   Is there one for ever single MCU I use?

Who in the hell came up with this idea?

[Stefano_P]

This solution does not solve the issue entirely in my case, because I had 2 identical warnings before putting the READONLY keyword and now there is still one warning left. I also tried removing the ld script and regenerating the project. That warning is still there so I guess it might be due to something else.

On top of that, the generated code with size optimization active generates a binary which crashes at some point for no reason and there is no way to debug. I had to revert back to v1.14.1 because v1.15 appears to have serious issues.

By the way,  after have regenerated the project. The new .ld file is the following, but the warning persists.

/* Entry Point */
ENTRY(Reset_Handler)

/* Highest address of the user mode stack */
_estack = ORIGIN(RAM) + LENGTH(RAM); /* end of "RAM" Ram type memory */

_Min_Heap_Size = 0x200; /* required amount of heap */
_Min_Stack_Size = 0x400; /* required amount of stack */

/* Memories definition */
MEMORY
{
  RAM    (xrw)    : ORIGIN = 0x20000000,   LENGTH = 40K
  FLASH    (rx)    : ORIGIN = 0x8000000,   LENGTH = 256K
}

/* Sections */
SECTIONS
{
  /* The startup code into "FLASH" Rom type memory */
  .isr_vector :
  {
    . = ALIGN(4);
    KEEP(*(.isr_vector)) /* Startup code */
    . = ALIGN(4);
  } >FLASH

  /* The program code and other data into "FLASH" Rom type memory */
  .text :
  {
    . = ALIGN(4);
    *(.text)           /* .text sections (code) */
    *(.text*)          /* .text* sections (code) */
    *(.glue_7)         /* glue arm to thumb code */
    *(.glue_7t)        /* glue thumb to arm code */
    *(.eh_frame)

    KEEP (*(.init))
    KEEP (*(.fini))

    . = ALIGN(4);
    _etext = .;        /* define a global symbols at end of code */
  } >FLASH

  /* Constant data into "FLASH" Rom type memory */
  .rodata :
  {
    . = ALIGN(4);
    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
    . = ALIGN(4);
  } >FLASH

  .ARM.extab (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
  {
    . = ALIGN(4);
    *(.ARM.extab* .gnu.linkonce.armextab.*)
    . = ALIGN(4);
  } >FLASH

  .ARM (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
  {
    . = ALIGN(4);
    __exidx_start = .;
    *(.ARM.exidx*)
    __exidx_end = .;
    . = ALIGN(4);
  } >FLASH

  .preinit_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
  {
    . = ALIGN(4);
    PROVIDE_HIDDEN (__preinit_array_start = .);
    KEEP (*(.preinit_array*))
    PROVIDE_HIDDEN (__preinit_array_end = .);
    . = ALIGN(4);
  } >FLASH

  .init_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
  {
    . = ALIGN(4);
    PROVIDE_HIDDEN (__init_array_start = .);
    KEEP (*(SORT(.init_array.*)))
    KEEP (*(.init_array*))
    PROVIDE_HIDDEN (__init_array_end = .);
    . = ALIGN(4);
  } >FLASH

  .fini_array (READONLY) : /* The "READONLY" keyword is only supported in GCC11 and later, remove it if using GCC10 or earlier. */
  {
    . = ALIGN(4);
    PROVIDE_HIDDEN (__fini_array_start = .);
    KEEP (*(SORT(.fini_array.*)))
    KEEP (*(.fini_array*))
    PROVIDE_HIDDEN (__fini_array_end = .);
    . = ALIGN(4);
  } >FLASH

  /* Used by the startup to initialize data */
  _sidata = LOADADDR(.data);

  /* Initialized data sections into "RAM" Ram type memory */
  .data :
  {
    . = ALIGN(4);
    _sdata = .;        /* create a global symbol at data start */
    *(.data)           /* .data sections */
    *(.data*)          /* .data* sections */
    *(.RamFunc)        /* .RamFunc sections */
    *(.RamFunc*)       /* .RamFunc* sections */

    . = ALIGN(4);
    _edata = .;        /* define a global symbol at data end */

  } >RAM AT> FLASH

  /* Uninitialized data section into "RAM" Ram type memory */
  . = ALIGN(4);
  .bss :
  {
    /* This is used by the startup in order to initialize the .bss section */
    _sbss = .;         /* define a global symbol at bss start */
    __bss_start__ = _sbss;
    *(.bss)
    *(.bss*)
    *(COMMON)

    . = ALIGN(4);
    _ebss = .;         /* define a global symbol at bss end */
    __bss_end__ = _ebss;
  } >RAM

  /* User_heap_stack section, used to check that there is enough "RAM" Ram  type memory left */
  ._user_heap_stack :
  {
    . = ALIGN(8);
    PROVIDE ( end = . );
    PROVIDE ( _end = . );
    . = . + _Min_Heap_Size;
    . = . + _Min_Stack_Size;
    . = ALIGN(8);
  } >RAM

  /* Remove information from the compiler libraries */
  /DISCARD/ :
  {
    libc.a ( * )
    libm.a ( * )
    libgcc.a ( * )
  }

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

[mmurf32]

Thank you sir! This worked for me

[_tece_]

In my case also helped adding (READONLY) in STM32C011F6PX_FLASH.ld

[PHolt.1]

Where in the .ld file did you put it?

[_tece_]

in 5 places:

.ARM.extab (READONLY) : {

. = ALIGN(4);

*(.ARM.extab* .gnu.linkonce.armextab.*)

. = ALIGN(4);

} >FLASH

.ARM (READONLY) : {

. = ALIGN(4);

__exidx_start = .;

*(.ARM.exidx*)

__exidx_end = .;

. = ALIGN(4);

} >FLASH

.preinit_array (READONLY) :

{

. = ALIGN(4);

PROVIDE_HIDDEN (__preinit_array_start = .);

KEEP (*(.preinit_array*))

PROVIDE_HIDDEN (__preinit_array_end = .);

. = ALIGN(4);

} >FLASH

.init_array (READONLY):

{

. = ALIGN(4);

PROVIDE_HIDDEN (__init_array_start = .);

KEEP (*(SORT(.init_array.*)))

KEEP (*(.init_array*))

PROVIDE_HIDDEN (__init_array_end = .);

. = ALIGN(4);

} >FLASH

.fini_array (READONLY):

{

. = ALIGN(4);

PROVIDE_HIDDEN (__fini_array_start = .);

KEEP (*(SORT(.fini_array.*)))

KEEP (*(.fini_array*))

PROVIDE_HIDDEN (__fini_array_end = .);

. = ALIGN(4);

} >FLASH

[SBenn.2]

I also had this problem, your solution works perfectly.

I was not sure what the linker script file was called so for anyone else the file is located near the bottom of the list of files and folders in a project and will have a name something like: STM32F103C8TX_FLASH.ld, there may be other *.ld files so be careful not to edit the wrong one.

 - thankyou