/** Linux startup code for the ARM processor.
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/** Linux startup code for the ARM processor.
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* Written by Shaun Jackman <sjackman@gmail.com>.
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* Written by Shaun Jackman <sjackman@gmail.com>.
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* Copyright 2006 Pathway Connectivity
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* Copyright 2006 Pathway Connectivity
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*
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*
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* Permission to use, copy, modify, and distribute this software
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* Permission to use, copy, modify, and distribute this software
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* is freely granted, provided that this notice is preserved.
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* is freely granted, provided that this notice is preserved.
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*/
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*/
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#include <stdlib.h>
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#include <stdlib.h>
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#include <unistd.h>
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#include <unistd.h>
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static int _main(int argc, char *argv[]) __attribute__((noreturn));
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static int _main(int argc, char *argv[]) __attribute__((noreturn));
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#if __thumb__ && !__thumb2__
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#if __thumb__ && !__thumb2__
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asm("\n"
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asm("\n"
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".code 32\n"
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".code 32\n"
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".global _start\n"
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".global _start\n"
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".type _start, %function\n"
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".type _start, %function\n"
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"_start:\n"
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"_start:\n"
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"\tadr r0, _start_thumb+1\n"
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"\tadr r0, _start_thumb+1\n"
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"\tbx r0\n"
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"\tbx r0\n"
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".size _start, .-_start\n");
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".size _start, .-_start\n");
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__attribute__((naked, used))
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__attribute__((naked, used))
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static void _start_thumb(void)
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static void _start_thumb(void)
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#else
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#else
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__attribute__((naked))
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__attribute__((naked))
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void _start(void)
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void _start(void)
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#endif
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#endif
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{
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{
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register int *sp asm("sp");
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register int *sp asm("sp");
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_main(*sp, (char **)(sp + 1));
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_main(*sp, (char **)(sp + 1));
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}
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}
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static int _main(int argc, char *argv[])
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static int _main(int argc, char *argv[])
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{
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{
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environ = argv + argc + 1;
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environ = argv + argc + 1;
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exit(main(argc, argv, environ));
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exit(main(argc, argv, environ));
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}
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}
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