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mirror of https://github.com/python/cpython.git synced 2024-11-28 08:20:55 +01:00
cpython/Mac/mwerks/macuseshlstart.c
1996-02-20 16:26:19 +00:00

50 lines
1.1 KiB
C

/*
** mac __start for python-with-shared-library.
**
** Partially stolen from MW Startup.c, which is
** Copyright © 1993 metrowerks inc. All Rights Reserved.
*/
#include <setjmp.h>
#ifdef PRE_CW8
extern jmp_buf __program_exit; /* exit() does a longjmp() to here */
extern void (*__atexit_hook)(void); /* atexit() sets this up if it is ever called */
extern void (*___atexit_hook)(void); /* _atexit() sets this up if it is ever called */
extern int __aborting; /* abort() sets this and longjmps to __program_exit */
#endif
/*
* clear_stackframe_backlink - set 0(SP) to 0
*
*/
static asm void clear_stackframe_backlink(void)
{
li r3,0
stw r3,0(SP)
blr
}
void __start(void)
{
char *argv = 0;
#ifdef PRE_CW8
if (setjmp(__program_exit) == 0) { // set up jmp_buf for exit()
main(0, &argv); // call main(argc, argv)
if (__atexit_hook)
__atexit_hook(); // call atexit() procs
}
if (!__aborting) {
if (___atexit_hook)
___atexit_hook(); // call _atexit() procs
}
// ExitToShell();
#else
clear_stackframe_backlink();
main(0, &argv);
exit(0);
#endif
}