[ECOS] Total memory usage

[Andrew Lunn]

On Thu, Jul 24, 2003 at 08:42:36AM +0000, eibach@gdsys.de wrote:
> Hello,
> 
> is there an easy way to find out, how much memory is used by my ecos
> application?
>
> For sure I can go through the linker map file, but are there any
> tools for analyzing?

Depends on how you define total memory usage.

Try the size command:

$> arm-elf-size se45app 
   text    data     bss     dec     hex filename
1386028   55248 8073768 9515044  913024 se45app

Or objdump --headers

$ arm-elf-objdump --headers se45app 
 
se45app:          file format elf32-littlearm
 
Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .debug_aranges 0000be28  00000000  00000000  00167dfc  2**0
                  CONTENTS, READONLY, DEBUGGING
  1 .debug_pubnames 00019bb6  00000000  00000000  00173c24  2**0
                  CONTENTS, READONLY, DEBUGGING
  2 .debug_info   00aca5f9  00000000  00000000  0018d7da  2**0
                  CONTENTS, READONLY, DEBUGGING
  3 .debug_abbrev 00053765  00000000  00000000  00c57dd3  2**0
                  CONTENTS, READONLY, DEBUGGING
  4 .debug_line   0016727a  00000000  00000000  00cab538  2**0
                  CONTENTS, READONLY, DEBUGGING
  5 .debug_frame  0002495c  00000000  00000000  00e127b4  2**2
                  CONTENTS, READONLY, DEBUGGING
  6 .debug_str    0003e2f0  00000000  00000000  00e37110  2**0
                  CONTENTS, READONLY, DEBUGGING
  7 .fixed_vectors 00000140  00000020  00000020  00e75400  2**5
                  CONTENTS, READONLY
  8 .rom_vectors  00000040  00030000  00030000  00008000  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  9 .text         0011a51c  00030040  00030040  00008040  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
 10 .fini         00000000  0014a55c  0014a55c  00e75540  2**0
                  CONTENTS
 11 .rodata       000380d0  0014a55c  0014a55c  0012255c  2**2
                  CONTENTS, ALLOC, LOAD, READONLY, DATA
 12 .rodata1      00000000  0018262c  0018262c  00e75540  2**0
                  CONTENTS
 13 .fixup        00000000  0018262c  0018262c  00e75540  2**0
                  CONTENTS
 14 .gcc_except_table 0000003c  0018262c  0018262c  0015a62c  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 15 .data         0000d794  00182668  00182668  0015a668  2**2
                  CONTENTS, ALLOC, LOAD, DATA
 16 .bss          007b3228  0018fdfc  0018fdfc  00167dfc  2**5
                  ALLOC
 17 .debug_ranges 00006898  00000000  00000000  00e75540  2**0
                  CONTENTS, READONLY, DEBUGGING

You need to parse the above and work out what really goes into memory
and what is left out, eg debug symbols etc.

None of these methods show you the heap usage. So depending on how you
define "total memory", as the subject of your email says, these
answers might not be what you want.

        Andrew

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