mirror of
https://github.com/pspdev/pspsdk.git
synced 2025-12-31 04:37:25 +00:00
135 lines
3.7 KiB
C
135 lines
3.7 KiB
C
/*
|
|
* PSP Software Development Kit - https://github.com/pspdev
|
|
* -----------------------------------------------------------------------
|
|
* Licensed under the BSD license, see LICENSE in PSPSDK root for details.
|
|
*
|
|
* crt0_prx.c - Pure PRX startup code.
|
|
*
|
|
* Copyright (c) 2005 Marcus R. Brown <mrbrown@ocgnet.org>
|
|
*
|
|
*/
|
|
|
|
#include <pspkerneltypes.h>
|
|
#include <pspmoduleinfo.h>
|
|
#include <pspthreadman.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
/* The maximum number of arguments that can be passed to main(). */
|
|
#define ARG_MAX 19
|
|
|
|
/* Default thread parameters for the main program thread. */
|
|
#define DEFAULT_THREAD_PRIORITY 32
|
|
#define DEFAULT_THREAD_ATTRIBUTE 0
|
|
#define DEFAULT_THREAD_STACK_KB_SIZE 256
|
|
#define DEFAULT_MAIN_THREAD_NAME "user_main"
|
|
|
|
/* Define us as a prx */
|
|
int __pspsdk_is_prx = 1;
|
|
|
|
/* If these variables are defined by the program, then they override the
|
|
defaults given above. */
|
|
extern int sce_newlib_nocreate_thread_in_start __attribute__((weak));
|
|
extern unsigned int sce_newlib_priority __attribute__((weak));
|
|
extern unsigned int sce_newlib_attribute __attribute__((weak));
|
|
extern unsigned int sce_newlib_stack_kb_size __attribute__((weak));
|
|
extern const char* sce_newlib_main_thread_name __attribute__((weak));
|
|
|
|
/* This is declared weak in case someone compiles an empty program. That
|
|
program won't work on the PSP, but it could be useful for testing the
|
|
toolchain. */
|
|
extern SceModuleInfo module_info __attribute__((weak));
|
|
|
|
/* Allow newlib/psplibc to provide an init hook to be called before main */
|
|
extern void __psp_libc_init(int argc, char *argv[]);
|
|
extern void _init(void);
|
|
extern void _fini(void);
|
|
extern int main(int argc, char *argv[]);
|
|
|
|
/**
|
|
* Main program thread
|
|
*
|
|
* Initializes runtime parameters and calls the program's main().
|
|
*
|
|
* @param args - Size (in bytes) of the argp parameter.
|
|
* @param argp - Pointer to program arguments. Each argument is a NUL-terminated string.
|
|
*/
|
|
void _main(SceSize args, void *argp)
|
|
{
|
|
char *argv[ARG_MAX + 1];
|
|
int argc = 0;
|
|
int loc = 0;
|
|
char *ptr = argp;
|
|
|
|
_init();
|
|
|
|
/* Turn our thread arguments into main()'s argc and argv[]. */
|
|
while(loc < args)
|
|
{
|
|
argv[argc] = &ptr[loc];
|
|
loc += strlen(&ptr[loc]) + 1;
|
|
argc++;
|
|
if(argc == ARG_MAX)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
argv[argc] = NULL;
|
|
|
|
/* Call libc initialization hook */
|
|
__psp_libc_init(argc, argv);
|
|
|
|
/* Make sure _fini() is called when the program ends. */
|
|
atexit((void *) _fini);
|
|
|
|
/* Call main(). */
|
|
int res = main(argc, argv);
|
|
|
|
/* Return control to the operating system. */
|
|
exit(res);
|
|
}
|
|
|
|
int module_start(SceSize args, void *argp) __attribute__((alias("_start")));
|
|
|
|
/**
|
|
* Startup thread
|
|
*
|
|
* Creates the main program thread based on variables defined by the program.
|
|
*
|
|
* @param args - Size (in bytes) of arguments passed to the program by the kernel.
|
|
* @param argp - Pointer to arguments passed by the kernel.
|
|
*/
|
|
int _start(SceSize args, void *argp)
|
|
{
|
|
if (&sce_newlib_nocreate_thread_in_start != NULL) {
|
|
/* The program does not want main() to be run in a seperate thread. */
|
|
_main(args, argp);
|
|
return 1;
|
|
}
|
|
|
|
int priority = DEFAULT_THREAD_PRIORITY;
|
|
unsigned int attribute = DEFAULT_THREAD_ATTRIBUTE;
|
|
unsigned int stackSize = DEFAULT_THREAD_STACK_KB_SIZE * 1024;
|
|
const char *threadName = DEFAULT_MAIN_THREAD_NAME;
|
|
|
|
if (&sce_newlib_priority != NULL) {
|
|
priority = sce_newlib_priority;
|
|
}
|
|
if (&sce_newlib_attribute != NULL) {
|
|
attribute = sce_newlib_attribute;
|
|
}
|
|
if (&sce_newlib_stack_kb_size != NULL) {
|
|
stackSize = sce_newlib_stack_kb_size * 1024;
|
|
}
|
|
if (&sce_newlib_main_thread_name != NULL) {
|
|
threadName = sce_newlib_main_thread_name;
|
|
}
|
|
|
|
SceUID thid;
|
|
thid = sceKernelCreateThread(threadName, (void *) _main, priority, stackSize, attribute, 0);
|
|
sceKernelStartThread(thid, args, argp);
|
|
|
|
return 0;
|
|
}
|