How to link libraries

[singha]

Hello all,

I think I'm having trouble with linking libraries.  Everything compiles fine with my makefile, but when I run the app on my PSP, it gives me an error "could not start game (8002013C)."  The very useful PSP Error codes thread tells me that the this is because a library was missing.

Now, I've begun using two new libraries in my code:

Code:

#include <pspiofilemgr.h>
#include <pspsystimer.h>

I'm also using <stdio.h>, which I'm mentioning only because its a standard C library and not necessarily a PSP library.

I think the problem may be that I am not linking them in my Makefile.  I noticed that the LIBS line had a couple of options that seem to relate to the graphics libraries:

Code:

LIBS = -lpspgu -lpng -lz -lm

Are there similar options that I need to add for the above libraries?  Where can I find them?  Or is something else wrong?

Your help is much appreciated!

Thank you,
L

[mowglisanu]

8002013C doesn't refer to static libraries? if that was the case it wouldn't compile in the first place. You're probably trying to use a function that can't be linked at runtime.

[singha]

How would I be able to tell which functions can't be used?  The error said "library not found," so I suppose that lines up with what you're saying.  The following code chunk is where things were added.  Can you spot a function call that wouldn't work?

Code:

#include <pspctrl.h>
#include <pspkernel.h>
#include <stdio.h>
#include <pspiofilemgr.h>
#include <pspsystimer.h>
#include "draw.h"
#include "control.h"
#include "callbacks.h"
#include "test.h"

#define printf pspDebugScreenPrintf
#define PHRASE_SIZE 45

PSP_MODULE_INFO("Two Cursor Text Input", 0, 1, 1);
int testPhrase[PHRASE_SIZE]; // Holds the test phrase...

/* Write results to resultFile. */
void writeResults(SceUID resultFile, int testType, char* input, int time) {
int dataSize = 128;
char* data = malloc(dataSize);

sprintf(data, "%d\t%s\t%s%d\n", testType, testPhrase, input, time);
sceIoWrite(resultFile, data, dataSize);

free(data);
}

int* getTestPhrase() { return testPhrase; }

/* Reads the next test phrase from testFile and puts it in testPhrase. */
int readNextPhrase(SceUID testFile) {
int i = 0;

do {
i += sceIoRead(testFile, testPhrase+i, 1);
} while (i > 0 && testPhrase[i-1] != '\n');
testPhrase[i] = 0;

return i;
}

/* Run test with phrases from testFilName, write the results to resultFileName,
with either 1Cursor or 2Cursor testType. */
void runTest(const char* testFileName, const char* resultFileName, int testType) {
SceUID testFile = sceIoOpen(testFileName, PSP_O_RDONLY, 0777);
SceUID resultFile = sceIoOpen(resultFileName, PSP_O_APPEND, 0777);

SceSysTimerId timer = sceSTimerAlloc(); // Clock
int time; // Holds how long user took to input a phrase
char* input; // What the user inputted
int done = 0; // Return value of readNextPhrase

initControl(); // Initialize!

bzero(testPhrase, PHRASE_SIZE);
done = readNextPhrase(testFile); // Read test phrase

while (done != 0) {
sceSTimerStartCount(timer); // Start timer
input = parseInput(testType); // Get user input
sceSTimerStopCount(timer); // Stop timer

sceSTimerGetCount(timer, &time); // Get time
sceSTimerResetCount(timer); // Reset timer

writeResults(resultFile, testType, input, time); // Write results

bzero(testPhrase, PHRASE_SIZE); // Reset testPhrase
done = readNextPhrase(testFile); // Read new test phrase
}

sceIoWrite(resultFile, "\n\n", 2); // Add two lines to the file

// Cleanup
cleanControl();

sceSTimerFree(timer);
sceIoClose(testFile);
sceIoClose(resultFile);
}

I should add that none of this code is executed right at runtime.  It goes to a menu first before it calls this.  I don't know if that makes a difference...

Thank you,
L

[mowglisanu]

A quick google search tells me the timer functions are your problem. On the psp libdocs I see that they're imported from SysTimerForKernel which implies kernel mode

You could put them in an external kernel prx and import them to your app or find user mode timer functions.

[singha]

Thank you!  I realized that that was the newest thing I've added, so cool.  I will replace with psprtc.h.
Thanks again,
L