Compiler/CC430F6137: Cannot place variable to specific memory location anymore with eabi/ELF output format

Jonathan Cheng26

Part Number: CC430F6137

Tool/software: TI C/C++ Compiler

I need to make some change to an old project that use MSP430 TI 4.4.5 compiler and there is a warning message.

warning #10204-D: could not resolve index library "libmath.a" to a compatible

Then, I change the build output format to ELF to resolve this warning message. Once I do that, I realize the linker no longer place the following variable to the specific memory location anymore. It works if I change the output back to legacy COFF. Do I miss anything?

#pragma DATA_SECTION(Image_boot, ".memlocation")
const unsigned char Image_boot[1024]={
#include "boot_sym.dat"
};

Thanks,

Jonathan

over 5 years ago

0 George Mock over 5 years ago

TI__Guru**** 238965 points

For this issue ...

Jonathan Cheng26 said:
warning #10204-D: could not resolve index library "libmath.a" to a compatible

I suspect the linker attempted to build the missing RTS library, and this step failed. To understand what happened, I need to see exactly how the linker is invoked, and all the resulting diagnostics. Please copy-n-paste that from the Console (not Problems) view in CCS.

For this issue ...

Jonathan Cheng26 said:
I realize the linker no longer place the following variable to the specific memory location anymore

There has to be specific syntax in the linker command file which allocates the output section .memlocation to the specific memory location. Please attach the linker command file to your next post. Because the forum only accepts a few different kinds of files, add the file extension ".txt" to it.

Thanks and regards,

-George

0 Jonathan Cheng26 over 5 years ago in reply to George Mock

Prodigy 20 points

Hi George,

As mentioned in the question, I've already resolved the following warning message.

<Linking>
warning #10204-D: could not resolve index library "libmath.a" to a compatible
remark #10372-D: (ULP 4.1) Detected uninitialized Port C in this project.
   Recommend initializing all unused ports to eliminate wasted current
   consumption on unused pins.
   library
'Finished building target: bed_tag.out'

Basically, the TI CGT 4.4.5 math library is in ELF format. Therefore I need to change the output format from legacy COFF to eabi (ELF). Once I did that there is no more warning message.

<Linking>
remark #10372-D: (ULP 4.1) Detected uninitialized Port C in this project.
Recommend initializing all unused ports to eliminate wasted current
consumption on unused pins.
'Finished building target: bed_tag.out'

But the question I have is that, once I use ELF format, the bootloader section is not there anymore. It used to work with COFF format.

Output Format legacy COFF

MEMORY CONFIGURATION

         name            origin    length      used     unused   attr    fill
---------------------- -------- --------- -------- -------- ---- --------
SFR                   00000000   00000010 00000000 00000010 RWIX
PERIPHERALS_8BIT      00000010   000000f0 00000000 000000f0 RWIX
PERIPHERALS_16BIT     00000100   00000100 00000000 00000100 RWIX
INFOD                 00001800   00000080 00000000 00000080 RWIX
INFOC                 00001880   00000080 00000000 00000080 RWIX
INFOB                 00001900   00000080 00000000 00000080 RWIX
INFOA                 00001980   00000080 00000000 00000080 RWIX
RAM                   00001c00   00000ffe 00000ff8 00000006 RWIX
FLASH                 00008000   00007a00 00007a00 00000000 RWIX ffff
BOOTLOADER            0000fa00   00000400 00000400 00000000 RWIX

.bootloader
* 0 0000fa00 00000400
0000fa00 00000400 main.obj (.bootloader)

Output Format eabi (ELF)

MEMORY CONFIGURATION

         name            origin    length      used     unused   attr    fill
---------------------- -------- --------- -------- -------- ---- --------
SFR                   00000000   00000010 00000000 00000010 RWIX
PERIPHERALS_8BIT      00000010   000000f0 00000000 000000f0 RWIX
PERIPHERALS_16BIT     00000100   00000100 00000000 00000100 RWIX
INFOD                 00001800   00000080 00000000 00000080 RWIX
INFOC                 00001880   00000080 00000000 00000080 RWIX
INFOB                 00001900   00000080 00000000 00000080 RWIX
INFOA                 00001980   00000080 00000000 00000080 RWIX
RAM                   00001c00   00000ffe 00000df3 0000020b RWIX
FLASH                 00008000   00007a00 00007a00 00000000 RWIX ffff
BOOTLOADER            0000fa00   00000400 00000000 00000400 RWIX

The .bootloader section is used in the code

#pragma DATA_SECTION(Image_boot, ".bootloader")
const unsigned char Image_boot[1024]={
#include "boot_sym.dat"
};

I have attached the linker cmd file that define the memory section. As I mentioned before, there is no change in the linker cmd file and the code. But somehow the .bootloader section is empty when using ELF output format.

Thanks,

-Jonathan

lnk_cc430f6137_cmd.txt

/******************************************************************************/
/* lnk_cc430f6137.cmd - LINKER COMMAND FILE FOR LINKING CC430F6137 PROGRAMS     */
/*                                                                            */
/*   Usage:  lnk430 <obj files...>    -o <out file> -m <map file> lnk.cmd     */
/*           cl430  <src files...> -z -o <out file> -m <map file> lnk.cmd     */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/* These linker options are for command line linking only.  For IDE linking,  */
/* you should set your linker options in Project Properties                   */
/* -c                                               LINK USING C CONVENTIONS  */
/* -stack  0x0100                                   SOFTWARE STACK SIZE       */
/* -heap   0x0100                                   HEAP AREA SIZE            */
/*                                                                            */
/*----------------------------------------------------------------------------*/


/****************************************************************************/
/* SPECIFY THE SYSTEM MEMORY MAP                                            */
/****************************************************************************/

MEMORY
{
    SFR                     : origin = 0x0000, length = 0x0010
    PERIPHERALS_8BIT        : origin = 0x0010, length = 0x00F0
    PERIPHERALS_16BIT       : origin = 0x0100, length = 0x0100
    RAM                     : origin = 0x1C00, length = 0x0FFE
    INFOA                   : origin = 0x1980, length = 0x0080
    INFOB                   : origin = 0x1900, length = 0x0080
    INFOC                   : origin = 0x1880, length = 0x0080
    INFOD                   : origin = 0x1800, length = 0x0080
    FLASH                   : origin = 0x8000, length = 0x7A00, fill = 0xFFFF
    //FLASH2					: origin = 0xF9F0, length = 0x0010
    BOOTLOADER				: origin = 0xFA00, length = 0x0400
    EMPTY  				    : origin = 0xFE00, length = 0x0180, fill = 0xFFFF
    INT00                   : origin = 0xFF80, length = 0x0002, fill = 0xFFFF
    INT01                   : origin = 0xFF82, length = 0x0002, fill = 0xFFFF
    INT02                   : origin = 0xFF84, length = 0x0002, fill = 0xFFFF
    INT03                   : origin = 0xFF86, length = 0x0002, fill = 0xFFFF
    INT04                   : origin = 0xFF88, length = 0x0002, fill = 0xFFFF
    INT05                   : origin = 0xFF8A, length = 0x0002, fill = 0xFFFF
    INT06                   : origin = 0xFF8C, length = 0x0002, fill = 0xFFFF
    INT07                   : origin = 0xFF8E, length = 0x0002, fill = 0xFFFF
    INT08                   : origin = 0xFF90, length = 0x0002, fill = 0xFFFF
    INT09                   : origin = 0xFF92, length = 0x0002, fill = 0xFFFF
    INT10                   : origin = 0xFF94, length = 0x0002, fill = 0xFFFF
    INT11                   : origin = 0xFF96, length = 0x0002, fill = 0xFFFF
    INT12                   : origin = 0xFF98, length = 0x0002, fill = 0xFFFF
    INT13                   : origin = 0xFF9A, length = 0x0002, fill = 0xFFFF
    INT14                   : origin = 0xFF9C, length = 0x0002, fill = 0xFFFF
    INT15                   : origin = 0xFF9E, length = 0x0002, fill = 0xFFFF
    INT16                   : origin = 0xFFA0, length = 0x0002, fill = 0xFFFF
    INT17                   : origin = 0xFFA2, length = 0x0002, fill = 0xFFFF
    INT18                   : origin = 0xFFA4, length = 0x0002, fill = 0xFFFF
    INT19                   : origin = 0xFFA6, length = 0x0002, fill = 0xFFFF
    INT20                   : origin = 0xFFA8, length = 0x0002, fill = 0xFFFF
    INT21                   : origin = 0xFFAA, length = 0x0002, fill = 0xFFFF
    INT22                   : origin = 0xFFAC, length = 0x0002, fill = 0xFFFF
    INT23                   : origin = 0xFFAE, length = 0x0002, fill = 0xFFFF
    INT24                   : origin = 0xFFB0, length = 0x0002, fill = 0xFFFF
    INT25                   : origin = 0xFFB2, length = 0x0002, fill = 0xFFFF
    INT26                   : origin = 0xFFB4, length = 0x0002, fill = 0xFFFF
    INT27                   : origin = 0xFFB6, length = 0x0002, fill = 0xFFFF
    INT28                   : origin = 0xFFB8, length = 0x0002, fill = 0xFFFF
    INT29                   : origin = 0xFFBA, length = 0x0002, fill = 0xFFFF
    INT30                   : origin = 0xFFBC, length = 0x0002, fill = 0xFFFF
    INT31                   : origin = 0xFFBE, length = 0x0002, fill = 0xFFFF
    INT32                   : origin = 0xFFC0, length = 0x0002, fill = 0xFFFF
    INT33                   : origin = 0xFFC2, length = 0x0002, fill = 0xFFFF
    INT34                   : origin = 0xFFC4, length = 0x0002, fill = 0xFFFF
    INT35                   : origin = 0xFFC6, length = 0x0002, fill = 0xFFFF
    INT36                   : origin = 0xFFC8, length = 0x0002, fill = 0xFFFF
    INT37                   : origin = 0xFFCA, length = 0x0002, fill = 0xFFFF
    INT38                   : origin = 0xFFCC, length = 0x0002, fill = 0xFFFF
    INT39                   : origin = 0xFFCE, length = 0x0002, fill = 0xFFFF
    INT40                   : origin = 0xFFD0, length = 0x0002, fill = 0xFFFF
    INT41                   : origin = 0xFFD2, length = 0x0002, fill = 0xFFFF
    INT42                   : origin = 0xFFD4, length = 0x0002, fill = 0xFFFF
    INT43                   : origin = 0xFFD6, length = 0x0002, fill = 0xFFFF
    INT44                   : origin = 0xFFD8, length = 0x0002, fill = 0xFFFF
    INT45                   : origin = 0xFFDA, length = 0x0002, fill = 0xFFFF
    INT46                   : origin = 0xFFDC, length = 0x0002, fill = 0xFFFF
    INT47                   : origin = 0xFFDE, length = 0x0002, fill = 0xFFFF
    INT48                   : origin = 0xFFE0, length = 0x0002, fill = 0xFFFF
    INT49                   : origin = 0xFFE2, length = 0x0002, fill = 0xFFFF
    INT50                   : origin = 0xFFE4, length = 0x0002, fill = 0xFFFF
    INT51                   : origin = 0xFFE6, length = 0x0002, fill = 0xFFFF
    INT52                   : origin = 0xFFE8, length = 0x0002, fill = 0xFFFF
    INT53                   : origin = 0xFFEA, length = 0x0002, fill = 0xFFFF
    INT54                   : origin = 0xFFEC, length = 0x0002, fill = 0xFFFF
    INT55                   : origin = 0xFFEE, length = 0x0002, fill = 0xFFFF
    INT56                   : origin = 0xFFF0, length = 0x0002, fill = 0xFFFF
    INT57                   : origin = 0xFFF2, length = 0x0002, fill = 0xFFFF
    INT58                   : origin = 0xFFF4, length = 0x0002, fill = 0xFFFF
    INT59                   : origin = 0xFFF6, length = 0x0002, fill = 0xFFFF
    INT60                   : origin = 0xFFF8, length = 0x0002, fill = 0xFFFF
    INT61                   : origin = 0xFFFA, length = 0x0002, fill = 0xFFFF
    INT62                   : origin = 0xFFFC, length = 0x0002, fill = 0xFFFF
    RESET                   : origin = 0xFFFE, length = 0x0002, fill = 0xFFFF
}

/****************************************************************************/
/* SPECIFY THE SECTIONS ALLOCATION INTO MEMORY                              */
/****************************************************************************/

SECTIONS
{
    .bss        : {} > RAM                /* GLOBAL & STATIC VARS              */
    .data       : {} > RAM                /* GLOBAL & STATIC VARS              */
    .sysmem     : {} > RAM                /* DYNAMIC MEMORY ALLOCATION AREA    */
    .stack      : {} > RAM (HIGH)         /* SOFTWARE SYSTEM STACK             */

    .text       : {} > FLASH              /* CODE                              */
    .cinit      : {} > FLASH              /* INITIALIZATION TABLES             */
    .const      : {} > FLASH              /* CONSTANT DATA                     */
    .cio        : {} > RAM                /* C I/O BUFFER                      */

	//.codeData   : {} > FLASH2             /* CODE READ ONLY DATA		           */

    .bootloader : {} > BOOTLOADER         /* BOOTLOADER CODE		           */
    .infoA     : {} > INFOA               /* MSP430 INFO FLASH MEMORY SEGMENTS */
    .infoB     : {} > INFOB
    .infoC     : {} > INFOC
    .infoD     : {} > INFOD

    /* MSP430 INTERRUPT VECTORS          */
    .int00       : {}               > INT00
    .int01       : {}               > INT01
    .int02       : {}               > INT02
    .int03       : {}               > INT03
    .int04       : {}               > INT04
    .int05       : {}               > INT05
    .int06       : {}               > INT06
    .int07       : {}               > INT07
    .int08       : {}               > INT08
    .int09       : {}               > INT09
    .int10       : {}               > INT10
    .int11       : {}               > INT11
    .int12       : {}               > INT12
    .int13       : {}               > INT13
    .int14       : {}               > INT14
    .int15       : {}               > INT15
    .int16       : {}               > INT16
    .int17       : {}               > INT17
    .int18       : {}               > INT18
    .int19       : {}               > INT19
    .int20       : {}               > INT20
    .int21       : {}               > INT21
    .int22       : {}               > INT22
    .int23       : {}               > INT23
    .int24       : {}               > INT24
    .int25       : {}               > INT25
    .int26       : {}               > INT26
    .int27       : {}               > INT27
    .int28       : {}               > INT28
    .int29       : {}               > INT29
    .int30       : {}               > INT30
    .int31       : {}               > INT31
    .int32       : {}               > INT32
    .int33       : {}               > INT33
    .int34       : {}               > INT34
    .int35       : {}               > INT35
    .int36       : {}               > INT36
    .int37       : {}               > INT37
    .int38       : {}               > INT38
    .int39       : {}               > INT39
    .int40       : {}               > INT40
    .int41       : {}               > INT41
    .int42       : {}               > INT42
    .int43       : {}               > INT43
    .int44       : {}               > INT44
    AES          : { * ( .int45 ) } > INT45 type = VECT_INIT
    RTC          : { * ( .int46 ) } > INT46 type = VECT_INIT
    LCD_B        : { * ( .int47 ) } > INT47 type = VECT_INIT
    PORT2        : { * ( .int48 ) } > INT48 type = VECT_INIT
    PORT1        : { * ( .int49 ) } > INT49 type = VECT_INIT
    TIMER1_A1    : { * ( .int50 ) } > INT50 type = VECT_INIT
    TIMER1_A0    : { * ( .int51 ) } > INT51 type = VECT_INIT
    DMA          : { * ( .int52 ) } > INT52 type = VECT_INIT
    CC1101       : { * ( .int53 ) } > INT53 type = VECT_INIT
    TIMER0_A1    : { * ( .int54 ) } > INT54 type = VECT_INIT
    TIMER0_A0    : { * ( .int55 ) } > INT55 type = VECT_INIT
    ADC12        : { * ( .int56 ) } > INT56 type = VECT_INIT
    USCI_B0      : { * ( .int57 ) } > INT57 type = VECT_INIT
    USCI_A0      : { * ( .int58 ) } > INT58 type = VECT_INIT
    WDT          : { * ( .int59 ) } > INT59 type = VECT_INIT
    COMP_B       : { * ( .int60 ) } > INT60 type = VECT_INIT
    UNMI         : { * ( .int61 ) } > INT61 type = VECT_INIT
    SYSNMI       : { * ( .int62 ) } > INT62 type = VECT_INIT
    .reset       : {}               > RESET  /* MSP430 RESET VECTOR         */ 
}

/****************************************************************************/
/* INCLUDE PERIPHERALS MEMORY MAP                                           */
/****************************************************************************/

-l cc430f6137.cmd

0 George Mock over 5 years ago in reply to Jonathan Cheng26

TI__Guru**** 238965 points

Jonathan Cheng26 said:
But somehow the .bootloader section is empty when using ELF output format.

Add this pragma ...

#pragma RETAIN(Image_boot)

Your program must not have any reads or writes of the array Image_boot. In EABI, a data object that is never referenced is removed (left out, really) by the linker. This is default behavior of the linker under EABI. Under the old COFFABI, the default behavior is opposite. A data object that is never referenced is still part of the program, unless special steps are taken.

I apologize for not recognizing this sooner.

Thanks and regards,

-George

Code Composer Studio™︎

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Compiler/CC430F6137: Cannot place variable to specific memory location anymore with eabi/ELF output format