1 files changed, 98 insertions, 0 deletions
diff --git a/newlib/libc/reent/signalr.c b/newlib/libc/reent/signalr.c
new file mode 100644
index 00000000000..7c85af14231
--- /dev/null
+++ b/newlib/libc/reent/signalr.c
@@ -0,0 +1,98 @@
+/* Reentrant versions of syscalls need to support signal/raise.
+   These implementations just call the usual system calls.  */
+
+#include <reent.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_link_syscalls = 1;
+
+#else
+
+/* We use the errno variable used by the system dependent layer.  */
+#undef errno
+extern int errno;
+
+/*
+FUNCTION
+	<<_kill_r>>---Reentrant version of kill
+	
+INDEX
+	_kill_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	int _kill_r(struct _reent *<[ptr]>, int <[pid]>, int <[sig]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	int _kill_r(<[ptr]>, <[pid]>, <[sig]>)
+	struct _reent *<[ptr]>;
+	int <[pid]>;
+	int <[sig]>;
+
+DESCRIPTION
+	This is a reentrant version of <<kill>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+*/
+
+int
+_kill_r (ptr, pid, sig)
+     struct _reent *ptr;
+     int pid;
+     int sig;
+{
+  int ret;
+
+  errno = 0;
+  if ((ret = _kill (pid, sig)) == -1 && errno != 0)
+    ptr->_errno = errno;
+  return ret;
+}
+
+/*
+FUNCTION
+	<<_getpid_r>>---Reentrant version of getpid
+	
+INDEX
+	_getpid_r
+
+ANSI_SYNOPSIS
+	#include <reent.h>
+	int _getpid_r(struct _reent *<[ptr]>);
+
+TRAD_SYNOPSIS
+	#include <reent.h>
+	int _getpid_r(<[ptr]>)
+	struct _reent *<[ptr]>;
+
+DESCRIPTION
+	This is a reentrant version of <<getpid>>.  It
+	takes a pointer to the global data block, which holds
+	<<errno>>.
+
+	We never need <<errno>>, of course, but for consistency we
+	still must have the reentrant pointer argument.
+*/
+
+int
+_getpid_r (ptr)
+     struct _reent *ptr;
+{
+  int ret;
+  ret = _getpid ();
+  return ret;
+}
+
+#endif /* ! defined (REENTRANT_SYSCALLS_PROVIDED) */