Changeset 34120f10 in mainline for common/stdc/cc.h

Timestamp:

2023-10-27T19:38:31Z (20 months ago)

Author:

Jiří Zárevúcky <zarevucky.jiri@…>

Branches:

master, topic/msim-upgrade, topic/simplify-dev-export

Children:

63ed840

Parents:

c89ae25 (diff), 694ca3d6 (diff)
Note: this is a merge changeset, the changes displayed below correspond to the merge itself.
Use the (diff) links above to see all the changes relative to each parent.

Message:

Merge code deduplication work

TL;DR: Added directory /common, which now contains the sole existing
copy of ADT, printf_core, and a few other pieces. Should make changes
to any of those less of a headache.

File:

• common/stdc/cc.h (moved) (moved from boot/generic/include/memstr.h ) (2 diffs)

common/stdc/cc.h

@@ -1 +1 @@
 /*
- * Copyright (c) 2001-2004 Jakub Jermar
+ * Copyright (c) 2013 Vojtech Horky
  * All rights reserved.
  *
@@ -27 +27 @@
  */
 
+/** @addtogroup libc
+ * @{
+ */
 /** @file
+ * Macros related to used compiler (such as GCC-specific attributes).
  */
 
-#ifndef BOOT_MEMSTR_H_
-#define BOOT_MEMSTR_H_
+#ifndef _LIBC_CC_H_
+#define _LIBC_CC_H_
 
-#include <stddef.h>
+#ifndef __clang__
+#define ATTRIBUTE_OPTIMIZE(opt) \
+    __attribute__ ((optimize(opt)))
+#else
+#define ATTRIBUTE_OPTIMIZE(opt)
+#endif
 
-extern void *memcpy(void *, const void *, size_t)
-    __attribute__((nonnull(1, 2)))
-    __attribute__((optimize("-fno-tree-loop-distribute-patterns")));
-extern void *memset(void *, int, size_t)
-    __attribute__((nonnull(1)))
-    __attribute__((optimize("-fno-tree-loop-distribute-patterns")));
-extern void *memmove(void *, const void *, size_t)
-    __attribute__((nonnull(1, 2)));
+#define ATTRIBUTE_OPTIMIZE_NO_TLDP \
+    ATTRIBUTE_OPTIMIZE("-fno-tree-loop-distribute-patterns")
+
+#ifdef CONFIG_LTO
+#define DO_NOT_DISCARD __attribute__ ((used))
+#else
+#define DO_NOT_DISCARD
+#endif
 
 #endif