5 files changed, 55 insertions, 3 deletions
diff --git a/newlib/libc/machine/nvptx/Makefile.am b/newlib/libc/machine/nvptx/Makefile.am
index 66664d3..b0d4c78 100644
--- a/newlib/libc/machine/nvptx/Makefile.am
+++ b/newlib/libc/machine/nvptx/Makefile.am
@@ -10,7 +10,7 @@ noinst_LIBRARIES = lib.a
 
 lib_a_SOURCES = calloc.c callocr.c malloc.c mallocr.c realloc.c reallocr.c \
 		free.c write.c assert.c puts.c putchar.c printf.c abort.c \
-		exit.c misc.c
+		exit.c misc.c clock.c
 lib_a_CFLAGS = $(AM_CFLAGS)
 
 ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
diff --git a/newlib/libc/machine/nvptx/Makefile.in b/newlib/libc/machine/nvptx/Makefile.in
index 75256b3..a01e097 100644
--- a/newlib/libc/machine/nvptx/Makefile.in
+++ b/newlib/libc/machine/nvptx/Makefile.in
@@ -76,7 +76,7 @@ am_lib_a_OBJECTS = lib_a-calloc.$(OBJEXT) lib_a-callocr.$(OBJEXT) \
 	lib_a-assert.$(OBJEXT) lib_a-puts.$(OBJEXT) \
 	lib_a-putchar.$(OBJEXT) lib_a-printf.$(OBJEXT) \
 	lib_a-abort.$(OBJEXT) lib_a-exit.$(OBJEXT) \
-	lib_a-misc.$(OBJEXT)
+	lib_a-misc.$(OBJEXT) lib_a-clock.$(OBJEXT)
 lib_a_OBJECTS = $(am_lib_a_OBJECTS)
 DEFAULT_INCLUDES = -I.@am__isrc@
 depcomp =
@@ -188,6 +188,7 @@ prefix = @prefix@
 program_transform_name = @program_transform_name@
 psdir = @psdir@
 sbindir = @sbindir@
+shared_machine_dir = @shared_machine_dir@
 sharedstatedir = @sharedstatedir@
 srcdir = @srcdir@
 sys_dir = @sys_dir@
@@ -202,7 +203,7 @@ AM_CCASFLAGS = $(INCLUDES)
 noinst_LIBRARIES = lib.a
 lib_a_SOURCES = calloc.c callocr.c malloc.c mallocr.c realloc.c reallocr.c \
 		free.c write.c assert.c puts.c putchar.c printf.c abort.c \
-		exit.c misc.c
+		exit.c misc.c clock.c
 
 lib_a_CFLAGS = $(AM_CFLAGS)
 ACLOCAL_AMFLAGS = -I ../../.. -I ../../../..
@@ -355,6 +356,12 @@ lib_a-misc.o: misc.c
 lib_a-misc.obj: misc.c
 	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-misc.obj `if test -f 'misc.c'; then $(CYGPATH_W) 'misc.c'; else $(CYGPATH_W) '$(srcdir)/misc.c'; fi`
 
+lib_a-clock.o: clock.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-clock.o `test -f 'clock.c' || echo '$(srcdir)/'`clock.c
+
+lib_a-clock.obj: clock.c
+	$(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) $(lib_a_CFLAGS) $(CFLAGS) -c -o lib_a-clock.obj `if test -f 'clock.c'; then $(CYGPATH_W) 'clock.c'; else $(CYGPATH_W) '$(srcdir)/clock.c'; fi`
+
 ID: $(HEADERS) $(SOURCES) $(LISP) $(TAGS_FILES)
 	list='$(SOURCES) $(HEADERS) $(LISP) $(TAGS_FILES)'; \
 	unique=`for i in $$list; do \
diff --git a/newlib/libc/machine/nvptx/clock.c b/newlib/libc/machine/nvptx/clock.c
new file mode 100644
index 0000000..1ad69f1
--- /dev/null
+++ b/newlib/libc/machine/nvptx/clock.c
@@ -0,0 +1,18 @@
+/* clock.c
+ * Support file for nvptx in newlib.
+ */
+#include <time.h>
+
+clock_t
+clock ()
+{
+  unsigned long long now;
+#if __PTX_SM__ >= 310
+  asm volatile("mov.u64 %0, %%globaltimer;" : "=r"(now));
+  return now/((1000000000ull)/CLOCKS_PER_SEC);
+#else
+  asm volatile("mov.u64 %0, %%clock64;" : "=r"(now));
+  // Assume a GPU base clock frequency of 1250MHz.
+  return now/((1250000000ull)/CLOCKS_PER_SEC);
+#endif
+}
diff --git a/newlib/libc/machine/nvptx/configure b/newlib/libc/machine/nvptx/configure
index 282728e..29d16d9 100644
--- a/newlib/libc/machine/nvptx/configure
+++ b/newlib/libc/machine/nvptx/configure
@@ -565,6 +565,7 @@ ac_unique_file="Makefile.am"
 ac_subst_vars='LTLIBOBJS
 LIBOBJS
 sys_dir
+shared_machine_dir
 machine_dir
 libm_machine_dir
 lpfx
@@ -3428,6 +3429,7 @@ OBJEXT=${oext}
 
 
 
+
 ac_config_files="$ac_config_files Makefile"
 
 cat >confcache <<\_ACEOF
diff --git a/newlib/libc/machine/nvptx/misc.c b/newlib/libc/machine/nvptx/misc.c
index ed1bc34..ef76eaa 100644
--- a/newlib/libc/machine/nvptx/misc.c
+++ b/newlib/libc/machine/nvptx/misc.c
@@ -15,6 +15,7 @@
 
 #include <errno.h>
 #include <sys/types.h>
+#include <sys/stat.h>
 #undef errno
 extern int errno;
 
@@ -23,12 +24,36 @@ close(int fd) {
   return -1;
 }
 
+int
+fstat (int fd, struct stat *buf) {
+  return -1;
+}
+
+int
+isatty (int fd) {
+  return fd == 1;
+}
+
 off_t
 lseek(int fd, off_t offset, int whence) {
   return 0;
 }
 
 int
+open (const char *pathname, int flags, ...) {
+  return -1;
+}
+
+int
 read(int fd, void *buf, size_t count) {
   return 0;
 }
+
+void
+sync (void) {
+}
+
+int
+unlink (const char *pathname) {
+  return -1;
+}