[SOLVED] How to launch .ELF files in 3.90 M33-3

[vista200]

Hi there!

I'm having a problem with loading ELF files. When I launch my program under 1.50 with TimeMachine, it works. If I try to run it from 3.90 M33-3 with 1.50-Kernel, sceKernelLoadExec returns -2147352247. I'm using the elf_template copied to test.elf in the root of the Memory Stick. Here's the source code:

Code: Select all

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

PSP_MODULE_INFO&#40;"ELF", 0, 1, 1&#41;;

#define printf pspDebugScreenPrintf

/* Exit callback */
int exit_callback&#40;int arg1, int arg2, void *common&#41; &#123;
sceKernelExitGame&#40;&#41;;
return 0;
&#125;

/* Callback thread */
int CallbackThread&#40;SceSize args, void *argp&#41; &#123;
int cbid;

cbid = sceKernelCreateCallback&#40;"Exit Callback", exit_callback, NULL&#41;;
sceKernelRegisterExitCallback&#40;cbid&#41;;

sceKernelSleepThreadCB&#40;&#41;;

return 0;
&#125;

/* Sets up the callback thread and returns its thread id */
int SetupCallbacks&#40;void&#41; &#123;
int thid = 0;

thid = sceKernelCreateThread&#40;"update_thread", CallbackThread, 0x11, 0xFA0, 0, 0&#41;;
if&#40;thid >= 0&#41; &#123;
sceKernelStartThread&#40;thid, 0, 0&#41;;
&#125;

return thid;
&#125;

int startELF&#40;char *path&#41; &#123;
	struct SceKernelLoadExecVSHParam param;
	memset&#40;&param, 0, sizeof&#40;param&#41;&#41;;
	if &#40;!param.key&#41;
	param.key = "game";
	param.size = sizeof&#40;param&#41;;
	param.args = strlen&#40;path&#41;+1;
	param.argp = path;
	int elf = sceKernelLoadExec&#40;path, NULL&#41;;
	return elf; 
&#125;

int main&#40;&#41; &#123;
	pspDebugScreenInit&#40;&#41;;
	SetupCallbacks&#40;&#41;;
	printf&#40;"Loading...\n"&#41;;
	printf&#40;"%i", startELF&#40;"ms0&#58;/test.elf"&#41;&#41;;
	sceKernelSleepThread&#40;&#41;;
return 0;
&#125;

Code: Select all

TARGET = elf
OBJS = main.o

CFLAGS = -O2 -G0 -Wall
CXXFLAGS = $(CFLAGS) -fno-exceptions -fno-rtti
ASFLAGS = $(CFLAGS)

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = ELF
PSP_FW_VERSION = 150

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

I've tried already a lot of things, such as starting my program in user and kernel mode. Also I've used functions like sctrlKernelLoadExecVSHMs2, but they error out with different errors.

Thanks in advantage,
vista200

[jas0nuk]

-2147352247
= 0x80020149
= SCE_KERNEL_ERROR_ILLEGAL_PERM_CALL

Are you sure it's running in the 1.50 kernel?

[vista200]

Thanks!

Copying my EBOOT to GAME150 folder works. When I launch it then, the ELF loads correctly.

Again, thanks for your help!
vista200

[phobox]

Code: Select all

int startELF(char *path) { 
   struct SceKernelLoadExecVSHParam param; 
   memset(&param, 0, sizeof(param)); 
   if (!param.key) 
   param.key = "game"; 
   param.size = sizeof(param); 
   param.args = strlen(path)+1; 
   param.argp = path; 
   int elf = sceKernelLoadExec(path, NULL); 
   return elf; 
} 

Why are you using SceKernelLoadExecVSHParam if you don't really use it? you pass NULL to sceKernelLoadExec....

[vista200]

Hi there!

This was just to see whether this would work. But as stated above, there was another mistake.

Greets from germany!
vista200