mirror of
https://github.com/pmret/gcc-papermario.git
synced 2024-11-08 20:02:47 +01:00
123 lines
3.2 KiB
C
123 lines
3.2 KiB
C
/* Solaris PowerPC startfile. */
|
|
/* Copyright (C) 1996 Free Software Foundation, Inc.
|
|
|
|
This file is part of GNU CC.
|
|
|
|
GNU CC is free software; you can redistribute it and/or modify
|
|
it under the terms of the GNU General Public License as published by
|
|
the Free Software Foundation; either version 2, or (at your option)
|
|
any later version.
|
|
|
|
GNU CC is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
GNU General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License
|
|
along with GNU CC; see the file COPYING. If not, write to
|
|
the Free Software Foundation, 59 Temple Place - Suite 330,
|
|
Boston, MA 02111-1307, USA. */
|
|
|
|
/* As a special exception, if you link this library with other files,
|
|
some of which are compiled with GCC, to produce an executable,
|
|
this library does not by itself cause the resulting executable
|
|
to be covered by the GNU General Public License.
|
|
This exception does not however invalidate any other reasons why
|
|
the executable file might be covered by the GNU General Public License. */
|
|
|
|
extern char **_environ;
|
|
|
|
extern int atexit (void (*__func) (void));
|
|
extern void __init (void) __attribute__ ((__longcall__));
|
|
extern void __fini (void) __attribute__ ((__longcall__));
|
|
|
|
typedef void (*func_ptr) (void);
|
|
int (*__atexit)(func_ptr) = atexit;
|
|
|
|
/* Exception handling */
|
|
struct ex_shared1 {
|
|
void *prev;
|
|
void *next;
|
|
char *text_start;
|
|
char *range_start;
|
|
char *text_end;
|
|
char *range_end;
|
|
};
|
|
|
|
struct ex_shared {
|
|
void (*ex_register) (struct ex_shared1 *);
|
|
void (*ex_deregister) (struct ex_shared1 *);
|
|
struct ex_shared1 shared_info;
|
|
};
|
|
|
|
extern char _ex_text0[], _ex_text1[];
|
|
extern char _ex_range0[], _ex_range1[];
|
|
extern void _ex_register (struct ex_shared1 *);
|
|
extern void _ex_deregister (struct ex_shared1 *);
|
|
extern char _SDA_BASE_[];
|
|
extern char _SDA2_BASE_[];
|
|
|
|
struct ex_shared shared __attribute__((section(".ex_shared"))) = {
|
|
_ex_register,
|
|
_ex_deregister,
|
|
{
|
|
(void *)0,
|
|
(void *)0,
|
|
_ex_text0,
|
|
_ex_range0,
|
|
_ex_text1,
|
|
_ex_range1
|
|
}
|
|
};
|
|
|
|
static void
|
|
deregister (void)
|
|
{
|
|
(* shared.ex_deregister) (&shared.shared_info);
|
|
}
|
|
|
|
/* Start function. */
|
|
void
|
|
_start(int argc, char *argv[], char *envp[], void *auxp, void (*termfunc)())
|
|
{
|
|
int ret;
|
|
int dummy = 0;
|
|
|
|
#if 0
|
|
/* Disable this for now, it causes an impossible reload. */
|
|
/* Load up r13/r2 before we do anything else. */
|
|
__asm__ volatile ("mr %%r13,%0;mr %%r2,%1" : "=r" (dummy) : "r" (&_SDA_BASE_[0]), "r" (&_SDA2_BASE_[0]), "r" (dummy));
|
|
#endif
|
|
|
|
_environ = envp + dummy;
|
|
|
|
/* Register loader termination function (the || dummy is to make sure the above asm
|
|
is not optimized away). */
|
|
if (termfunc)
|
|
atexit (termfunc);
|
|
|
|
/* Register exception handler if needed */
|
|
if (shared.ex_register)
|
|
(* shared.ex_register) (&shared.shared_info);
|
|
|
|
if (shared.ex_deregister)
|
|
atexit (deregister);
|
|
|
|
/* Call any global constructors and destructors. */
|
|
__init ();
|
|
|
|
atexit (__fini);
|
|
|
|
/* Call the main program now */
|
|
ret = main (argc, argv, envp, auxp);
|
|
|
|
/* Return to the os */
|
|
exit (ret);
|
|
}
|
|
|
|
/* Provide a dummy __eabi in case main got compiled without -mcall-solaris. */
|
|
void
|
|
__eabi ()
|
|
{
|
|
}
|