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Attempting to run my first program: 0x80020148

 
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G43L



Joined: 07 Nov 2009
Posts: 12
PostPosted: Tue Nov 10, 2009 7:23 am    Post subject: Attempting to run my first program: 0x80020148 Reply with quote
Hi,

I use devKitPSP release 11 to compile the following program:

Code:

#include <pspkernel.h>
#include <pspdebug.h>
#include <pspdisplay.h>

PSP_MODULE_INFO("Hello", 0, 1, 1);

/* Exit callback */
int exit_callback(int arg1, int arg2, void *common)
{
    sceKernelExitGame();

    return 0;
}

/* Callback thread */
int CallbackThread(SceSize args, void *argp)
{
    int cbid;

    cbid = sceKernelCreateCallback("Exit Callback", exit_callback, NULL);
    sceKernelRegisterExitCallback(cbid);

    sceKernelSleepThreadCB();

    return 0;
}

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks(void)
{
    int thid = 0;

    thid = sceKernelCreateThread("update_thread", CallbackThread, 0x11, 0xFA0, 0, 0);
    if (thid >= 0)
    {
        sceKernelStartThread(thid, 0, 0);
    }

    return thid;
}

int main(int argc, char **argv)
{
    pspDebugScreenInit();
    SetupCallbacks();

    while (1)
    {
        pspDebugScreenPrintf("Hello PSP!");
        sceDisplayWaitVblankStart();
    }

    sceKernelSleepThread();

    return 0;
}

//  EOF


Then I use make_eboot.bat to create EBOOT.PBP:

Code:

"C:\devkitPSP\bin\mksfo.exe" Hello title.sfo
"C:\devkitPSP\bin\psp-fixup-imports.exe" hello.elf
"C:\devkitPSP\bin\psp-strip.exe" hello.elf -o stripped.elf
"C:\devkitPSP\bin\pack-pbp.exe" EBOOT.PBP title.sfo NULL NULL NULL NULL NULL stripped.elf NULL
del title.sfo
del stripped.elf


When I try to load the program with PSPLink 3.0 oe on CFW 5.50 GEN-D2 on a PSP 1000 I obtain this:

Code:

host0:/> EBOOT.PBP
Failed to Load/Start module 'host0:/EBOOT.PBP' Error: 0x80020148
host0:/>


Code:

host0:/src/> d ./EBOOT.PBP
PSPLink USB GDBServer (c) 2k7 TyRaNiD
host0:/src/> Invalid ELF magic


What can I do?

Thanks in advance,
G43L
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jojojoris



Joined: 30 Mar 2008
Posts: 261
PostPosted: Tue Nov 10, 2009 8:04 am    Post subject: Reply with quote
With psplink you start a .prx not an EBOOT.PBP .
A prx file is like a exe file on windows. the EBOOT.PBP is just a container with some additional info.

in your makefile you must have the line:

BUILD_PRX=1

so the compiler will create a prx.

PS.
you are using a old toolchain.
download minpspw and remove devkitPRO to get a more up to date one.
http://minpspw.sourceforge.net/
_________________
Code:
int main(){
     SetupCallbacks();
     makeNiceGame();
     sceKernelExitGame();
}
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G43L



Joined: 07 Nov 2009
Posts: 12
PostPosted: Tue Nov 10, 2009 5:38 pm    Post subject: Reply with quote
Hi,

I've uninstalled devkitPSP and installed minpspw v0.9.5

With the following in the Makefile:

Code:

BUILD_PRX=1
...
PSPSDK = $(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build_prx.mak


I obtain the warning message:

Code:

warning||cannot find entry symbol module_start; defaulting to 0000000000000000|


and undefined references errors...


Thanks for any help,
G43L
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G43L



Joined: 07 Nov 2009
Posts: 12
PostPosted: Tue Nov 10, 2009 8:23 pm    Post subject: [SOLVED] !!! Reply with quote
Hi,

I've solved all my problems...




Here is the Makefile I use

Code:

TARGET = hello
OBJS = hello.o snprintf.o

PSP_ONLY = 1

# Define to build this as a prx (instead of a static elf)
BUILD_PRX = 1
# Define the name of our custom exports (minus the .exp extension)
PRX_EXPORTS = exports.exp

USE_KERNEL_LIBC = 1
USE_KERNEL_LIBS = 1

INCDIR =
CFLAGS = -DNOEXIT -DFPM_MIPS -O2 -G0 -Wall -fno-pic
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

LIBDIR =

PSPSDK = $(shell psp-config --pspsdk-path)
include $(PSPSDK)/lib/build_prx.mak

LIBS += -lpspge_driver -lpspgu


I'm also using http://www.ijs.si/software/snprintf/ as implementation of vsnprintf. I have just modified lines 535 to 541 of snprintf.c:

Code:

#if defined(NEED_SNPRINTF_ONLY)
int portable_snprintf(char *str, size_t str_m, const char *fmt, /*args*/ ...) {
#elif defined(PSP_ONLY)
int vsnprintf(char *str, size_t str_m, const char *fmt, va_list ap) {
#else
int portable_vsnprintf(char *str, size_t str_m, const char *fmt, va_list ap) {
#endif


Now I can start to modify QHACK for the PSP :~)

G43L
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jojojoris



Joined: 30 Mar 2008
Posts: 261
PostPosted: Tue Nov 10, 2009 11:17 pm    Post subject: Reply with quote
use include $(PSPSDK)/lib/build.mak instead of build_prx.mak

I don't exactly know the difference but it does some things to ensure that it will start properly.

in your main.c (or something) cou have to use
PSP_MODULE_INFO
PSP_MAIN_THREAD_ATTR
PSP_HEAP_SIZE_KB
_________________
Code:
int main(){
     SetupCallbacks();
     makeNiceGame();
     sceKernelExitGame();
}
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G43L



Joined: 07 Nov 2009
Posts: 12
PostPosted: Thu Nov 12, 2009 5:16 am    Post subject: Reply with quote
jojojoris wrote:
use include $(PSPSDK)/lib/build.mak instead of build_prx.mak

I don't exactly know the difference but it does some things to ensure that it will start properly.

in your main.c (or something) cou have to use
PSP_MODULE_INFO
PSP_MAIN_THREAD_ATTR
PSP_HEAP_SIZE_KB


I've done all the changes and it is perfectly working. Thank you very much for the advises!

QHACK for the PSP:



G43L
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