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remove unused (and invalid) C version of sigsetjmp

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originally, the comment in this code was correct and it would likely
work if the compiler generated a tail call to setjmp. however, commit
583e55122e767b1586286a0d9c35e2a4027998ab redesigned sigsetjmp and
siglongjmp such that the old C implementation (which was not intended
to be used) is not even conceptually correct. remove it in the
interest of avoiding confusion when porting to new archs.
This commit is contained in:
Rich Felker 2015-09-09 06:59:45 +00:00
parent 58f6259dff
commit deb85ab44d
1 changed files with 0 additions and 17 deletions
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17
src/signal/sigsetjmp.c
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@ -1,17 +0,0 @@
#include <setjmp.h>
#include <signal.h>
#include "libc.h"
/* !!! This function will not work unless the compiler performs
* tail call optimization. Machine-specific asm versions should
* be created instead even though the workaround (tail call)
* is entirely non-machine-specific... */
int sigsetjmp(sigjmp_buf buf, int save)
{
if ((buf->__fl = save))
pthread_sigmask(SIG_SETMASK, 0, (sigset_t *)buf->__ss);
return setjmp(buf);
}
weak_alias(sigsetjmp, __sigsetjmp);