Last change
on this file since 546 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
910 bytes
|
Line | |
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1 | /** Linux startup code for the ARM processor. |
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2 | * Written by Shaun Jackman <sjackman@gmail.com>. |
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3 | * Copyright 2006 Pathway Connectivity |
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4 | * |
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5 | * Permission to use, copy, modify, and distribute this software |
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6 | * is freely granted, provided that this notice is preserved. |
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7 | */ |
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8 | |
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9 | #include <stdlib.h> |
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10 | #include <unistd.h> |
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11 | #include "arm.h" |
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12 | |
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13 | static int _main(int argc, char *argv[]) __attribute__((noreturn)); |
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14 | |
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15 | #if __thumb__ && !defined(PREFER_THUMB) |
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16 | asm("\n" |
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17 | ".code 32\n" |
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18 | ".global _start\n" |
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19 | ".type _start, %function\n" |
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20 | "_start:\n" |
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21 | "\tldr r0, .LC0\n" |
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22 | "\tbx r0\n" |
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23 | ".LC0:\n" |
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24 | "\t.word _start_thumb\n" |
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25 | ".size _start, .-_start\n"); |
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26 | |
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27 | __attribute__((naked, used)) |
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28 | static void _start_thumb(void) |
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29 | #else |
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30 | __attribute__((naked)) |
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31 | void _start(void) |
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32 | #endif |
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33 | { |
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34 | register int *sp asm("sp"); |
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35 | _main(*sp, (char **)(sp + 1)); |
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36 | } |
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37 | |
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38 | static int _main(int argc, char *argv[]) |
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39 | { |
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40 | environ = argv + argc + 1; |
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41 | exit(main(argc, argv, environ)); |
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42 | } |
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