1 files changed, 42 insertions, 1 deletions
diff --git a/newlib/libc/sys/linux/inode.c b/newlib/libc/sys/linux/inode.c
index f6d89469c..e2f4ab16e 100644
--- a/newlib/libc/sys/linux/inode.c
+++ b/newlib/libc/sys/linux/inode.c
@@ -9,8 +9,12 @@
 #include <sys/stat.h>
 #include <sys/utime.h>
 #include <linux/dirent.h>
+#include <sys/lock.h>
 #include <machine/syscall.h>
 
+__LOCK_INIT(static, umask_lock);
+
+#define __NR___umask __NR_umask
 
 _syscall2(int,link,const char *,oldpath,const char *,newpath)
 _syscall1(int,unlink,const char *,pathname)
@@ -22,7 +26,6 @@ _syscall2(int,access,const char *,filename,int,mode)
 _syscall2(int,mkdir,const char *,pathname,mode_t,mode)
 _syscall1(int,rmdir,const char *,pathname)
 _syscall1(int,pipe,int *,filedes)
-_syscall1(mode_t,umask,mode_t,mask)
 _syscall1(int,chroot,const char *,path)
 _syscall2(int,symlink,const char *,oldpath,const char *,newpath)
 _syscall3(int,readlink,const char *,path,char *,buf,size_t,bufsiz)
@@ -30,3 +33,41 @@ _syscall2(int,stat,const char *,file_name,struct stat *,buf)
 _syscall2(int,lstat,const char *,file_name,struct stat *,buf)
 _syscall2(int,fstat,int,filedes,struct stat *,buf)
 _syscall3(int,getdents,int,fd,struct dirent *,dirp,unsigned int,count)
+_syscall1(mode_t,__umask,mode_t,mask)
+
+static _syscall3(int,fchown32,int,fd,uid_t,owner,gid_t,group)
+
+int
+fchown (int fd, uid_t owner, gid_t group)
+{
+  return __libc_fchown32 (fd, owner, group);
+}
+
+mode_t
+umask (mode_t mask)
+{
+  mode_t old_mask;
+
+  /* we need to lock so as to not interfere with getumask */
+  __lock_acquire(umask_lock);
+  old_mask = __umask (mask);
+  __lock_release(umask_lock);
+
+  return old_mask;
+}
+
+mode_t
+getumask (void)
+{
+  mode_t mask;
+
+  __lock_acquire(umask_lock);
+
+  mask = __umask (0);
+  mask = __umask (mask);
+
+  __lock_release(umask_lock);
+
+  return mask;
+}
+