FPC4GP2X status?

[paul_nicholls]

Do a "nm gp2x_sdl_mixer.o" and compare the symbols displayed with the ones the compiler is looking for. Can you see differences?

Hi dmantione,
I tried that and it said "File format not recognized". I tried both the arm-linux-nm.exe (c:\devkitGP2X\bin\) and the nm.exe (c:\devkitGP2X\arm-linux\bin\).

cheers,
Paul

[dmantione]

That is not okay, and suggests the .o file is not build correctly. Verify if your C compiler generates the .o files FPC needs.

[paul_nicholls]

That is not okay, and suggests the .o file is not build correctly. Verify if your C compiler generates the .o files FPC needs.

It works fine when I compile some arm assembly and ]libgp2x_asm.s[/b]

@ gp2x demo article code by Dzz
@ this code is placed in the public domain.  do anything you want with it.

	.align 4
	.globl OpenFile
	.globl CloseFile
	.globl WriteFile
	.globl MUnmap
	.globl ChangeDir
	.globl ExecuteFile
	.globl MMap
	.globl CopyScreen
	.globl ClearScreen
	.globl Ioctl3

OpenFile:
	swi #0x900005
	mov pc, lr

CloseFile:
	swi #0x900006
	mov pc, lr

WriteFile:
	swi #0x900004
	mov pc, lr

MUnmap:
	swi #0x90005B
	mov pc, lr

ChangeDir:
	swi #0x90000C
	mov pc, lr

ExecuteFile:
	swi #0x90000B
	mov pc, lr

Ioctl3:
	swi #0x900036
	mov pc, lr

MMap:
	stmdb sp!, {r0, r1, r2, r3}
	mov r0, sp
	swi #0x90005A
	add sp, sp, #16
	mov pc, lr
	
CopyScreen:
  stmfd sp!, {r4-r10}  @ remember registers 4-10
  mov r2, #4800        @ we will run the loop 4800 times to copy the screen
.CopyScreenLoop:
  ldmia r1!, {r3-r10}  @ pull in 32 bytes from the source
  stmia r0!, {r3-r10}  @ write the 32 bytes to the destination
  subs r2, r2, #1      @ decrement the loop counter
  bne .CopyScreenLoop  @ if we're not done, do it again
  ldmfd sp!, {r4-r10}  @ restore the registers
	mov pc, lr           @ return

ClearScreen:
  stmfd sp!, {r4-r10}  @ remember registers 4-10
  mov r2, #4800        @ we will run the loop 4800 times to copy the screen
	mov r3, #0           @ load up the registers with zeros
	mov r4, #0
	mov r5, #0
	mov r6, #0
	mov r7, #0
	mov r8, #0
	mov r9, #0
	mov r10, #0
.ClearScreenLoop:
 stmia r0!, {r3-r10}  @ write the 32 bytes of zeros to the destination
 subs r2, r2, #1      @ decrement the loop counter
 bne .ClearScreenLoop @ if we're not done, do it again
 ldmfd sp!, {r4-r10}  @ restore the registers
 mov pc, lr           @ return

arm-linux-gcc.exe -c libgp2x_asm.s

cheers,
Paul

[dmantione]

Any .o file generated by the GNU assembler should be processable by the nm utility belonging to that assembler (regardless wether the compiler calling that assembler is GCC, FPC).

If "nm" cannot process a .o file, either the .o file is corrupt, or it is written in a format "nm" does not understand, but in that case, as and nm do not belong together.

Anyway, the output by "nm" is critical to understand this problem, so you will need to solve this problem in one way or another.

[paul_nicholls]

Any .o file generated by the GNU assembler should be processable by the nm utility belonging to that assembler (regardless wether the compiler calling that assembler is GCC, FPC).

If "nm" cannot process a .o file, either the .o file is corrupt, or it is written in a format "nm" does not understand, but in that case, as and nm do not belong together.

Anyway, the output by "nm" is critical to understand this problem, so you will need to solve this problem in one way or another.

Ok, thanks for the help, but I dont't know how to proceed now

cheers,
Paul

[pstudio]

Ok - I need help.
I recieved my F200 yesterday (tuesday), and now I want to try and compile something for it, but I can't

I've downloaded the guides written by Paul and followed them from the beginning to the end, but when I run the CompileProject batch file I get following error during link stage :

Linking gp2x_tutorial
arm-linux-ld.exe: cannot find -lSDL
An error occured while linking gp2x_tutorial

How do I fix this problem? (It's probably a newb question, but I'm used to use compilers/ide's that works ot of the box)

[paul_nicholls]

Ok - I need help.
I recieved my F200 yesterday (tuesday), and now I want to try and compile something for it, but I can't

I've downloaded the guides written by Paul and followed them from the beginning to the end, but when I run the CompileProject batch file I get following error during ]Linking gp2x_tutorial
arm-linux-ld.exe: cannot find -lSDL
An error occured while linking gp2x_tutorial[/code]

How do I fix this problem? (It's probably a newb question, but I'm used to use compilers/ide's that works ot of the box)

strange, it should work out of the "box"; other people have used it ok...

Sorry about this, I will look into it...

PS In case it helps me, can you post the contents of your batch files that you had to alter to match file paths on your computer?

cheers,
Paul

[pstudio]

I didn't alter the filepaths since I unzippd the files to the same location as you suggested. The only filepath I changed was in the FPC config file where i changed the g:\... to c:\.

[pstudio]

Nevermind. I redownloaded the devkit and now it works
I've just compiled my first GP2X program and now I'm gonna see if it works (probably wont )

[paul_nicholls]

Nevermind. I redownloaded the devkit and now it works
I've just compiled my first GP2X program and now I'm gonna see if it works (probably wont )

Excellent!!

So what is your first program, the tutorial I wrote, or one of your own?

cheers,
Paul