Simplify sytem call renaming. Instead of _foo() <-- _libc_foo <-- foo(),

just use _foo() <-- foo().  In the case of a libpthread that doesn't do
call conversion (such as linuxthreads and our upcoming libpthread), this
is adequate.  In the case of libc_r, we still need three names, which are
now _thread_sys_foo() <-- _foo() <-- foo().

Convert all internal libc usage of: aio_suspend(), close(), fsync(), msync(),
nanosleep(), open(), fcntl(), read(), and write() to _foo() instead of foo().

Remove all internal libc usage of: creat(), pause(), sleep(), system(),
tcdrain(), wait(), and waitpid().

Make thread cancellation fully POSIX-compliant.

Suggested by:	deischen

1 files changed, 2 insertions, 4 deletions

diff --git a/lib/libkse/thread/thr_wait4.c b/lib/libkse/thread/thr_wait4.c
index 4c3f1de..90eb0ab 100644
--- a/lib/libkse/thread/thr_wait4.c
+++ b/lib/libkse/thread/thr_wait4.c
@@ -38,11 +38,10 @@
 #include "pthread_private.h"
 
 pid_t
-_libc_wait4(pid_t pid, int *istat, int options, struct rusage * rusage)
+_wait4(pid_t pid, int *istat, int options, struct rusage * rusage)
 {
 	pid_t	ret;
 
-	_thread_enter_cancellation_point();
 	_thread_kern_sig_defer();
 
 	/* Perform a non-blocking wait4 syscall: */
@@ -62,10 +61,9 @@ _libc_wait4(pid_t pid, int *istat, int options, struct rusage * rusage)
 	}
 
 	_thread_kern_sig_undefer();
-	_thread_leave_cancellation_point();
 
 	return (ret);
 }
 
-__weak_reference(_libc_wait4, wait4);
+__weak_reference(_wait4, wait4);
 #endif