mirror of
https://github.com/autc04/Retro68.git
synced 2024-09-10 03:54:48 +00:00
41 lines
892 B
C
41 lines
892 B
C
/** Linux startup code for the ARM processor.
|
|
* Written by Shaun Jackman <sjackman@gmail.com>.
|
|
* Copyright 2006 Pathway Connectivity
|
|
*
|
|
* Permission to use, copy, modify, and distribute this software
|
|
* is freely granted, provided that this notice is preserved.
|
|
*/
|
|
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
#include "arm.h"
|
|
|
|
static int _main(int argc, char *argv[]) __attribute__((noreturn));
|
|
|
|
#if defined(__thumb__) && !defined(THUMB_V7_V6M)
|
|
asm("\n"
|
|
".code 32\n"
|
|
".global _start\n"
|
|
".type _start, %function\n"
|
|
"_start:\n"
|
|
"\tadr r0, _start_thumb+1\n"
|
|
"\tbx r0\n"
|
|
".size _start, .-_start\n");
|
|
|
|
__attribute__((naked, used))
|
|
static void _start_thumb(void)
|
|
#else
|
|
__attribute__((naked))
|
|
void _start(void)
|
|
#endif
|
|
{
|
|
register int *sp asm("sp");
|
|
_main(*sp, (char **)(sp + 1));
|
|
}
|
|
|
|
static int _main(int argc, char *argv[])
|
|
{
|
|
environ = argv + argc + 1;
|
|
exit(main(argc, argv, environ));
|
|
}
|