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use weak symbols for the POSIX functions that will be used by C threads

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The intent of this is to avoid name space pollution of the C threads
implementation.

This has two sides to it. First we have to provide symbols that wouldn't
pollute the name space for the C threads implementation. Second we have
to clean up some internal uses of POSIX functions such that they don't
implicitly drag in such symbols.
This commit is contained in:
Jens Gustedt
2014-09-01 00:46:23 +02:00
committed by Rich Felker
parent 6eb19505bc
commit df7d0dfb9c
15 changed files with 76 additions and 29 deletions
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8
src/thread/pthread_join.c
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@ -1,16 +1,20 @@
#include "pthread_impl.h"
#include <sys/mman.h>
int __munmap(void *, size_t);
static void dummy(void *p)
{
}
int pthread_join(pthread_t t, void **res)
int __pthread_join(pthread_t t, void **res)
{
int tmp;
pthread_testcancel();
while ((tmp = t->tid)) __timedwait(&t->tid, tmp, 0, 0, dummy, 0, 0);
if (res) *res = t->result;
if (t->map_base) munmap(t->map_base, t->map_size);
if (t->map_base) __munmap(t->map_base, t->map_size);
return 0;
}
weak_alias(__pthread_join, pthread_join);