file access problem with BUILD_PRX = 1

[skwi]

Hi,
I've got a weird problem when I try to add "BUILD_PRX = 1" in my makefile.
When I add this line, my program can't access file on disk, when it try to open a file, it return NULL.
but without BUILD_PRX = 1, everything work fine

I really don't understand why it wouldn't work

this is my makefile :

Code: Select all

TARGET = 3dtest
OBJS = main.o

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

LIBDIR =
LDFLAGS =
LIBS= -lpspgum -lpspgu -lm

EXTRA_TARGETS = EBOOT.PBP
PSP_EBOOT_TITLE = 3D Test

BUILD_PRX = 1

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

my program is running in user mode under 3.90 M33

I use this :

Code: Select all

PSP_MODULE_INFO("3D Test", 0, 1, 1);
PSP_MAIN_THREAD_ATTR(THREAD_ATTR_USER);

and I acces file this way :

Code: Select all

 FILE * fi1;
    fi1 = fopen ( nomobj , "rb" );

thanks if you can help

[jean]

New custom firmwares basically require a prx to be encapsulated into eboot. So the whole executable is like a library loader. While a program starts with a status setted by executing environment (or operating system...) a library does not, so a prx has _NOT_ (among other status variables) a Current Working Directory.....your program basically doesn't know where to find files you point out.
Solutions:
1) Provide full path filenames
2) find out cwd with some functions i don't remember at the moment (just search now that you have the "cwd" buzzword)

hope this will help!

jean

[Wally]

You havent defined a heap_size

Try adding this after the module info:
PSP_HEAP_SIZE(20480);

This will define the area which the program can play with, 20mb is what is allocated in my example. However you may adjust to suit.

I Wish there was a way to rid of this heapsize bullshit for once and for all :) *Bites TyRaNiD*

[skwi]

thanks for your answers,

New custom firmwares basically require a prx to be encapsulated into eboot. So the whole executable is like a library loader. While a program starts with a status setted by executing environment (or operating system...) a library does not, so a prx has _NOT_ (among other status variables) a Current Working Directory.....your program basically doesn't know where to find files you point out.
Solutions:
1) Provide full path filenames
2) find out cwd with some functions i don't remember at the moment (just search now that you have the "cwd" buzzword)

hope this will help!

jean

actually it did'nt worked even with absolute path.

Try adding this after the module info:
PSP_HEAP_SIZE(20480);

I tried to add this, but it refuse to compile :

main.c:17: error: expected declaration specifiers or '...' before numeric constant
main.c:17: warning: data definition has no type or storage class
main.c:17: warning: type defaults to 'int' in declaration of 'PSP_HEAP_SIZE'

(any idea why ?)


so I tried to do this instead :

PSP_HEAP_SIZE_MAX();


and now everything is working fine, even with relative path when I run the prx with psplink

thanks for your help

[Insert_witty_name]

Wally meant PSP_HEAP_SIZE_KB(20480);

[J.F.]

Wally meant PSP_HEAP_SIZE_KB(20480);

And if you have the latest SDK, you can now decide how much to leave instead of how much to take by using something like PSP_HEAP_SIZE_KB(-1024); instead. :)