Import newlib and create makefile

1 files changed, 112 insertions, 0 deletions

diff --git a/newlib/libc/reent/timer.c b/newlib/libc/reent/timer.c
new file mode 100644
index 0000000..526b4d1
--- /dev/null
+++ b/newlib/libc/reent/timer.c
@@ -0,0 +1,112 @@
+/* Reentrant versions of times and gettimeofday system calls for the
+   clock and time ANSI C routines.
+   This implementation just calls the times/gettimeofday system calls.
+   Gettimeofday may not be available on all targets.  It's presence
+   here is dubious.  Consider it for internal use only.  */
+
+#include <reent.h>
+#include <time.h>
+#include <sys/times.h>
+#include <_syslist.h>
+
+/* Some targets provides their own versions of these functions.  Those
+   targets should define REENTRANT_SYSCALLS_PROVIDED in TARGET_CFLAGS.  */
+
+#ifdef _REENT_ONLY
+#ifndef REENTRANT_SYSCALLS_PROVIDED
+#define REENTRANT_SYSCALLS_PROVIDED
+#endif
+#endif
+
+#ifdef REENTRANT_SYSCALLS_PROVIDED
+
+int _dummy_time_syscalls = 1;
+
+#else
+
+/* We use the errno variable used by the system dependent layer.  */
+#undef errno
+extern int errno;
+
+/*
+FUNCTION
+	<<_times_r>>---Reentrant version of times
+	
+INDEX
+	_times_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	#include <sys/times.h>
+	clock_t _times_r(struct _reent *<[ptr]>, struct tms *<[ptms]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	#include <sys/times.h>
+	clock_t _times_r(<[ptr]>, <[ptms]>)
+	struct _reent *<[ptr]>;
+	struct tms *<[ptms]>;
+
+DESCRIPTION
+	This is a reentrant version of <<times>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+*/
+
+clock_t
+_times_r (ptr, ptms)
+     struct _reent *ptr;
+     struct tms *ptms;
+{
+  clock_t ret;
+
+  ret = _times (ptms);
+  return ret;
+}
+
+/*
+FUNCTION
+	<<_gettimeofday_r>>---Reentrant version of gettimeofday
+	
+INDEX
+	_gettimeofday_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	#include <time.h>
+	int _gettimeofday_r(struct _reent *<[ptr]>,
+		struct timeval *<[ptimeval]>,
+		struct timezone *<[ptimezone]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	#include <time.h>
+	int _gettimeofday_r(<[ptr]>, <[ptimeval]>, <[ptimezone]>)
+	struct _reent *<[ptr]>;
+	struct timeval *<[ptimeval]>;
+	struct timezone *<[ptimezone]>;
+
+DESCRIPTION
+	This is a reentrant version of <<gettimeofday>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+
+	This function is only available for a few targets.
+	Check libc.a to see if its available on yours.
+*/
+
+int
+_gettimeofday_r (ptr, ptimeval, ptimezone)
+     struct _reent *ptr;
+     struct timeval *ptimeval;
+     struct timezone *ptimezone;
+{
+  int ret;
+
+  errno = 0;
+  if ((ret = _gettimeofday (ptimeval, ptimezone)) == -1 && errno != 0)
+    ptr->_errno = errno;
+  return ret;
+}
+
+#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */