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author | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
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committer | Rich Felker <dalias@aerifal.cx> | 2011-02-12 00:22:29 -0500 |
commit | 0b44a0315b47dd8eced9f3b7f31580cf14bbfc01 (patch) | |
tree | 6eaef0d8a720fa3da580de87b647fff796fe80b3 /src/exit/exit.c | |
download | musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.gz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.bz2 musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.tar.xz musl-0b44a0315b47dd8eced9f3b7f31580cf14bbfc01.zip |
initial check-in, version 0.5.0v0.5.0
Diffstat (limited to 'src/exit/exit.c')
-rw-r--r-- | src/exit/exit.c | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/src/exit/exit.c b/src/exit/exit.c new file mode 100644 index 00000000..d0c1bfc1 --- /dev/null +++ b/src/exit/exit.c @@ -0,0 +1,28 @@ +#include <stdlib.h> +#include <unistd.h> +#include <stdio.h> +#include "libc.h" + +/* __overflow.c and atexit.c override these */ +static int (*const dummy)() = 0; +weak_alias(dummy, __funcs_on_exit); +weak_alias(dummy, __fflush_on_exit); + +void exit(int code) +{ + static int lock; + + /* If more than one thread calls exit, hang until _Exit ends it all */ + LOCK(&lock); + + /* Only do atexit & stdio flush if they were actually used */ + if (__funcs_on_exit) __funcs_on_exit(); + if (__fflush_on_exit) __fflush_on_exit(0); + + /* Destructor s**t is kept separate from atexit to avoid bloat */ + if (libc.fini) libc.fini(); + if (libc.ldso_fini) libc.ldso_fini(); + + _Exit(code); + for(;;); +} |