problem with code size"need help"

The linker must be putting your program sections together in an incorrect order.

The 'small data' section is used for small data items (be default less than 8 bytes) so that they can be accessed using a signed 16bit offset from the 'global pointer' (gp) register instead of having to load the 32bit address for each access.

So it looks as though the linker has put a large data item into the 'small data' section making the section larger than 64k.

If do a working link (small image array) and then look at the symbol table and linker map output file (you'll need to persuade the IDE to pass -Map file to ld) you should be able to work out why.

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That's not a matter of size. It seems the pointer used to reference the picture data bases on the current program counter, thus the code. How do you "include" the picture into you application?

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I included it like that:# include "picture.h"

and inside it:

int pic_h = 60;

int pic_w = 120;

unsigned int pic[60][120]=

{................};

and the calling like that :

draw_array(

(unsigned int *)pic,

pic_w,

pic_h,

pic_viewer.display,

((WIDTH-pic_w)/2),

((HEIGHT-pic_h)/2),

SPLASH_BG_MASK);

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The linker must be putting your program sections together in an incorrect order.

The 'small data' section is used for small data items (be default less than 8 bytes) so that they can be accessed using a signed 16bit offset from the 'global pointer' (gp) register instead of having to load the 32bit address for each access.

So it looks as though the linker has put a large data item into the 'small data' section making the section larger than 64k.

If do a working link (small image array) and then look at the symbol table and linker map output file (you'll need to persuade the IDE to pass -Map file to ld) you should be able to work out why.

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I will try this but how to persuade the IDE to pass MAP file to id??

Is the variable definition

unsigned int pic[60][120] = { };

made inside of a function, i.e. main()?

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Is the variable definition

unsigned int pic[60][120] = { };

made inside of a function, i.e. main()?

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no the data of int pic[60][120] is initialized in the picture.h

I noticed that when the size of pic exceeds some value the error happens below this value the picture comes out on the LCD without errors????

The output of 'objdump -h foo.o' and 'objdump -n foo.o' will show which sections the various pieces of data are assigned to.

Your pic[] should end up in .data, pic_h and pic_w in .sdata.

If they are correct there, then maybe something is stopping the linker merging all the .sdata sections together.

Which version of gcc are you using?

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Maybe I should have been more precise. Is the variable pic[][] a global module variable or a local function variable?

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I included the file pic.h inthe beginning of the main.c

and the pic.h is like that:

int pic_h = 40;

int pic_w = 100;

unsigned int pic[40][100]={

{16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215,16777215},

{16777215,....................

so I think it is a global variable..

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The output of 'objdump -h foo.o' and 'objdump -n foo.o' will show which sections the various pieces of data are assigned to.

Your pic[] should end up in .data, pic_h and pic_w in .sdata.

If they are correct there, then maybe something is stopping the linker merging all the .sdata sections together.

Which version of gcc are you using?

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I am using version 10.0