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-rw-r--r--builtin/assert.h12
-rw-r--r--builtin/stdarg.h24
-rw-r--r--builtin/stddef.h30
-rw-r--r--builtin/stdint.h38
-rw-r--r--builtin/string.h16
-rw-r--r--builtin/time.h13
6 files changed, 133 insertions, 0 deletions
diff --git a/builtin/assert.h b/builtin/assert.h
new file mode 100644
index 0000000000..7e5f04b375
--- /dev/null
+++ b/builtin/assert.h
@@ -0,0 +1,12 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CROS_EC_ASSERT_H__
+#define __CROS_EC_ASSERT_H__
+
+#include "util.h"
+#define assert(x...) ASSERT(x)
+
+#endif /* __CROS_EC_ASSERT_H__ */
diff --git a/builtin/stdarg.h b/builtin/stdarg.h
new file mode 100644
index 0000000000..66ab940b16
--- /dev/null
+++ b/builtin/stdarg.h
@@ -0,0 +1,24 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CROS_EC_STDARG_H__
+#define __CROS_EC_STDARG_H__
+
+/* We use -nostdinc -ffreestanding to keep host system include files
+ * from contaminating our build.
+ * Unfortunately this also gets us rid of the _compiler_ includes, like
+ * stdarg.h. To work around the issue, we define varargs directly here.
+ */
+
+#ifdef __GNUC__
+#define va_start(v, l) __builtin_va_start(v, l)
+#define va_end(v) __builtin_va_end(v)
+#define va_arg(v, l) __builtin_va_arg(v, l)
+typedef __builtin_va_list va_list;
+#else
+#include_next <stdarg.h>
+#endif
+
+#endif /* __CROS_EC_STDARG_H__ */
diff --git a/builtin/stddef.h b/builtin/stddef.h
new file mode 100644
index 0000000000..505dd9f515
--- /dev/null
+++ b/builtin/stddef.h
@@ -0,0 +1,30 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CROS_EC_STDDEF_H__
+#define __CROS_EC_STDDEF_H__
+
+#ifndef __SIZE_TYPE__
+#define __SIZE_TYPE__ unsigned long
+#endif
+
+typedef __SIZE_TYPE__ size_t;
+/* There is a GCC macro for a size_t type, but not for a ssize_t type.
+ * The following construct convinces GCC to make __SIZE_TYPE__ signed.
+ */
+#define unsigned signed
+typedef __SIZE_TYPE__ ssize_t;
+#undef unsigned
+
+#ifndef NULL
+#define NULL ((void *)0)
+#endif
+
+#ifndef __WCHAR_TYPE__
+#define __WCHAR_TYPE__ int
+#endif
+typedef __WCHAR_TYPE__ wchar_t;
+
+#endif /* __CROS_EC_STDDEF_H__ */
diff --git a/builtin/stdint.h b/builtin/stdint.h
new file mode 100644
index 0000000000..75cf8d8ebf
--- /dev/null
+++ b/builtin/stdint.h
@@ -0,0 +1,38 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef __CROS_EC_STDINT_H__
+#define __CROS_EC_STDINT_H__
+
+typedef unsigned char uint8_t;
+typedef signed char int8_t;
+
+typedef unsigned short uint16_t;
+typedef signed short int16_t;
+
+typedef unsigned int uint32_t;
+typedef signed int int32_t;
+
+typedef unsigned long long uint64_t;
+typedef signed long long int64_t;
+
+typedef int intptr_t;
+typedef unsigned int uintptr_t;
+
+#ifndef UINT16_MAX
+#define UINT16_MAX (65535U)
+#endif
+#ifndef INT16_MAX
+#define INT16_MAX (32767U)
+#endif
+
+#ifndef UINT32_MAX
+#define UINT32_MAX (4294967295U)
+#endif
+#ifndef INT32_MAX
+#define INT32_MAX (2147483647U)
+#endif
+
+#endif /* __CROS_EC_STDINT_H__ */
diff --git a/builtin/string.h b/builtin/string.h
new file mode 100644
index 0000000000..d30dda8324
--- /dev/null
+++ b/builtin/string.h
@@ -0,0 +1,16 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* This header is only needed for CR50 compatibility */
+
+#ifndef __CROS_EC_STRINGS_H__
+#define __CROS_EC_STRINGS_H__
+
+#include <stddef.h>
+
+void *memcpy(void *dest, const void *src, size_t len);
+void *memset(void *dest, int c, size_t len);
+
+#endif /* __CROS_EC_STRINGS_H__ */
diff --git a/builtin/time.h b/builtin/time.h
new file mode 100644
index 0000000000..a069ae18c9
--- /dev/null
+++ b/builtin/time.h
@@ -0,0 +1,13 @@
+/* Copyright 2016 The Chromium OS Authors. All rights reserved.
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+/* This header is only needed for CR50 compatibility */
+
+#ifndef __CROS_EC_TIME_H__
+#define __CROS_EC_TIME_H__
+
+#include <timer.h>
+
+#endif /* __CROS_EC_TIME_H__ */