33 lines
637 B
C
33 lines
637 B
C
#include <stdlib.h>
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#include <unistd.h>
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#include <stdio.h>
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#include "libc.h"
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#include "atomic.h"
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#include "syscall.h"
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static void dummy()
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{
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}
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/* __toread.c, __towrite.c, and atexit.c override these */
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weak_alias(dummy, __funcs_on_exit);
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weak_alias(dummy, __flush_on_exit);
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weak_alias(dummy, __seek_on_exit);
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_Noreturn void exit(int code)
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{
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static int lock;
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/* If more than one thread calls exit, hang until _Exit ends it all */
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while (a_swap(&lock, 1)) __syscall(SYS_pause);
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__funcs_on_exit();
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if (libc.fini) libc.fini();
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if (libc.ldso_fini) libc.ldso_fini();
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__flush_on_exit();
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__seek_on_exit();
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_Exit(code);
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for(;;);
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}
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